阅读说明：本技术 一种荒煤气热量回收及脱液除尘一体化装置 (Raw coke oven gas heat recovery and take off liquid dust removal integrated device ) 是由 王振峰 于 2021-09-23 设计创作，主要内容包括：本发明提供了一种荒煤气热量回收及脱液除尘一体化装置,包括荒煤气进气管组件、箱筒组件、总出气口管、补水管、蒸汽出口管、螺旋输送机、均匀布气组件和液位计。本发明达到了煤气温度降低并回收炉顶中的热能制取蒸汽、脱除荒煤气中的粉尘、有机物冷凝物、蒸汽及游离水的效果和目的,并消除了直接喷水或蒸汽等产生的负面效应,具有结构紧凑、空间场地占用小、寿命长、安全性好的特点。本发明的零部件及相关构造克服了现有技术热气流在换热管之间分别不均的缺点,达到了气流均匀分配的效果,并有效的避免了含粉尘或有机挥发物冷凝雾滴堵塞换热管路而降低换热(冷却)效果的现象,具有热效率高和换热速率快、寿命长、安全性好的特点。(The invention provides a raw coke oven gas heat recovery and liquid removal and dust removal integrated device which comprises a raw coke oven gas inlet pipe assembly, a box barrel assembly, a total gas outlet pipe, a water supplementing pipe, a steam outlet pipe, a spiral conveyor, an even gas distribution assembly and a liquid level meter. The invention achieves the effects and purposes of reducing the temperature of the coal gas, recovering the heat energy in the furnace top to prepare steam, and removing dust, organic matter condensate, steam and free water in the raw gas, eliminates the negative effect generated by directly spraying water or steam and the like, and has the characteristics of compact structure, small space occupation, long service life and good safety. The parts and the related structure of the invention overcome the defect that the hot air flow is respectively uneven among the heat exchange tubes in the prior art, achieve the effect of uniform distribution of the air flow, effectively avoid the phenomenon that the condensation fog drops containing dust or organic volatile matters block the heat exchange pipeline to reduce the heat exchange (cooling) effect, and have the characteristics of high heat efficiency, high heat exchange rate, long service life and good safety.)

1. The utility model provides a raw coke oven gas heat recovery and take off liquid dust removal integrated device, includes raw coke oven gas inlet tube subassembly (1), box section of thick bamboo subassembly (2), total outlet pipe (3), moisturizing pipe (4), steam outlet pipe (5), screw conveyer (6), even gas distribution subassembly and level gauge, its characterized in that: the box barrel component (2) consists of a quadrangular barrel shell (7) with a rectangular horizontal section, a barrel top cover (8), a water tank bottom plate (9) and a bottom shell (10) in an inverted step shape, wherein the barrel top cover (8) is a flat plate part with a quadrangular outline matched with the quadrangular barrel shell (7), a row of gas branch pipe inserting sleeve parts (11) are arranged on the barrel top cover (8), the number of the gas branch pipe inserting sleeve parts (11) is not less than two and is uniformly distributed on the barrel top cover (8), the central axis of each row of the gas branch pipe inserting sleeve parts (11) is vertical to the barrel top cover (8) and is positioned on an upright plane, the water tank bottom plate (9) is a plate with a quadrangular outline matched with the quadrangular barrel shell (7), a plurality of uniformly distributed branch pipe heat exchange sealing inserting sleeve parts (12) are arranged on the water tank bottom plate (9), the end face of the large opening end face of the bottom shell (10) is matched with the lower end face of the quadrangular barrel shell (7) and is hermetically fixed together, the shell top cover (8) is positioned at the upper top end of the quadrangular shell (7), the water tank bottom plate (9) is positioned on the inner side wall of the lower section of the quadrangular shell (7), the shell top cover (8) and the water tank bottom plate (9) are parallel to each other and are fixed on the inner side wall of the quadrangular shell (7) in a sealing matching manner, the distance between the water tank bottom plate (9) and the upper end surface of the bottom shell (10) is matched with the outer diameter of the main air outlet pipe (3), the uniform air distribution assembly comprises an air distribution pipe insertion plate (13), an air-steam baffle plate (14), a plurality of air distribution pipes (15) and a plurality of heat exchange branch pipes (16), the air distribution pipe insertion plate (13) is a rectangular plate which is provided with a plurality of air distribution pipe insertion through holes (17) and the outline of four sides of which is matched with the outline of the quadrangular shell (7), the air-steam baffle plate (14) is a rectangular plate which is provided with a plurality of air distribution pipe fixing through holes (18) and the outline of four sides of which is matched with the outline of the quadrangular shell (7), the number of the air distribution pipe inserting through holes (17) on the air distribution pipe inserting plate (13) and the number of the heat exchange branch pipe sealing inserting sleeve parts (12) on the water tank bottom plate (9) are equal to the number of the air distribution pipe fixing through holes (18) on the air-steam baffle plate (14), the positions of the air distribution pipe inserting through holes (17), the air distribution pipe fixing through holes (18) and the heat exchange branch pipe sealing inserting sleeve parts (12) are matched and correspond up and down, the air distribution pipe (15) is an air distributing pipe fitting formed by matching and smoothly communicating an inner cavity tapered conical pipe (19) with a tapered inner cavity and a tapered inner cavity (21) through a throat straight pipe (20), more than one radial through hole (22) is arranged at the throat straight pipe (20) of the air distribution pipe (15), the radial through hole (22) is vertical to the central axis of the air distribution pipe (15), and the inner diameter of the radial through hole (22) is matched with the inner diameter of the throat straight pipe (20), the heat exchange branch pipe (16) is a straight pipe with a through center, the upper end part of the air distribution pipe (15) is tightly matched and inserted in the air distribution pipe insertion through hole (17), the lower section of the air distribution pipe (15) is hermetically fixed with the air-steam partition plate (14) through the air distribution pipe fixing through hole (18), the lower bottom end of the air distribution pipe (15) is hermetically communicated with the upper top end of the heat exchange branch pipe (16) and the inner cavity is smooth, the lower section of the heat exchange branch pipe (16) extends out of the water tank bottom plate (9) through the inner cavity of the heat exchange branch pipe sealing insertion sleeve component (12), the main air outlet pipe (3) is positioned below the water tank bottom plate (9), the upper end surface of the bottom shell (10) is matched and communicated with the quadrangular barrel shell (7), the steam outlet pipe (5) is communicated and connected with the side wall of the upper section of the quadrangular barrel shell (7) fixed below the air-steam partition plate (14), the water replenishing pipe (4) is positioned above the water tank bottom plate (9) and matched and is communicated with the lower section of the quadrangular barrel shell (7) The raw coke oven gas inlet pipe assembly is characterized in that the raw coke oven gas inlet pipe assembly is communicated with each other, the tail end of a water supplementing pipe (4) is provided with a water supplementing control valve, a screw conveyor (6) is positioned at the small opening end of a frustum of a bottom shell (10) and is communicated with the bottom shell (10) in a matched mode, a discharge port pipe of the screw conveyor (6) is provided with a normally closed discharge valve (23), a raw coke oven gas inlet pipe assembly (1) is composed of a descending inclined pipe (24), a plurality of uniformly distributed gas branch pipes (25) and a dust and liquid collecting cone barrel (26), the trend of the descending inclined pipe (24) is consistent with the arrangement trend of the central axis of the gas branch pipes (25), the lower section of each gas branch pipe (25) is correspondingly inserted into a gas branch pipe inserting sleeve piece (11), the upper end of each gas branch pipe (25) is communicated and fixed with the descending inclined pipe (24), a gas guide cone (28) with the upper part and the lower part of the lower end opening of each gas branch pipe (25) is fixed through a connecting rib plate (27), the lower end of the descending inclined pipe (24) is connected with an inlet pipe of a dust and liquid collecting cone barrel (26).

2. The raw coke oven gas heat recovery and liquid and dust removal integrated device as claimed in claim 1, wherein: steam outlet pipe (5) and moisturizing pipe (4) position on a case section of thick bamboo subassembly (2) upper and lower matching correspond, the drain pan (10) lower part of a case section of thick bamboo subassembly (2) is equipped with support (201), the level gauge is float level gauge (202), the upper end of level gauge communicates with each other with steam outlet pipe (5) and links to each other, the lower extreme of level gauge communicates with each other with moisturizing pipe (4) and links to each other, be equipped with relief valve (203) on steam outlet pipe (5), steam pressure gauge (204) and diffuse valve (205), the end of steam outlet pipe (5) still is equipped with steam control valve (206).

3. The raw coke oven gas heat recovery and liquid and dust removal integrated device as claimed in claim 1, wherein: the heat exchange branch pipe sealing and inserting sleeve component (12) is composed of a pipe shell component (301) with a stepped through hole in the inner cavity, a cylindrical outline, a sealing filler (302) and a sealing ring cover (303) with a stepped frustum outline, an inner sealing thread is arranged in a large-diameter port of the stepped through hole of the pipe shell component (301), an outer sealing thread is arranged in a small-diameter section of the stepped frustum of the sealing ring cover (303), the inner sealing thread of the pipe shell component (301) is matched with the outer sealing thread of the sealing ring cover (303), a large-diameter port of the stepped through hole of the heat exchange branch pipe sealing and inserting sleeve component (12) faces downwards, the inner diameter of the small-diameter port of the stepped through hole of the pipe shell component (301) is closely matched with the outer diameter of a heat exchange branch pipe (16), the heat exchange branch pipe sealing and inserting sleeve component (12) is fixedly connected with a water tank bottom plate (9), and the sealing filler (302) is matched with the inner cavity, the inner cavity and the inner cavity of the pipe shell component (301), A gap between the circular sealing ring cover (303) and the outer wall of the heat exchange branch pipe (16).

4. The raw coke oven gas heat recovery and liquid and dust removal integrated device as claimed in claim 1, wherein: the gas branch pipe inserting casing pipe piece (11) is composed of a bottom ring plate (401), a straight cylindrical pipe (402), an annular flange plate (403) and an annular plate cover (404) provided with a boss ring, the bottom ring plate (401) is fixedly connected to the inner side of the lower end of the straight cylindrical pipe (402), the annular flange plate (403) is fixedly connected to the outer side of the upper end of the straight cylindrical pipe (402), the annular flange plate (403) is provided with a plurality of uniformly distributed threaded through holes (405), the annular plate cover (404) is provided with a plurality of uniformly distributed screw through holes (406), the diameter of each threaded through hole (405) is matched with the diameter of each screw through hole (406), the positions of the threaded through holes (405) and the positions of the screw through holes (406) are correspondingly matched up and down, the inner diameter of the bottom ring plate (401), the inner diameter of the annular flange plate (403) and the inner diameter of the annular plate cover (404) are matched and larger than the outer diameter of a hot gas main pipe (8), and the annular flange plate cover (403) and the annular plate cover (404) are tightly matched with the screws arranged in the threaded through holes (405) and the screw through holes (406) The bottom ring plate (401), the straight cylindrical pipe (402), the annular flange plate (403), the annular plate cover (404) and the hot gas main pipe (8) are connected together, and a sealing filler element (407) is pressed in a gap surrounded by the bottom ring plate, the straight cylindrical pipe, the annular flange plate and the annular plate cover.

5. The raw coke oven gas heat recovery and liquid and dust removal integrated device as claimed in claim 1, wherein: the upper section of the quadrangular barrel shell (7) is provided with an overflow port pipe (501) in a matching way, the overflow port pipe (501) is provided with an overflow control valve (502), and the lower section of the quadrangular barrel shell (7) is provided with a normally closed type decontamination valve (503) at the position matching place with the water replenishing pipe (4).

6. The raw coke oven gas heat recovery and liquid and dust removal integrated device as claimed in claim 1, wherein: the lower surface of water tank bottom plate (9) be equipped with air guide skirtboard (601), air guide skirtboard (601) are located outside heat transfer branch pipe (16) place region, within quadrangular barrel shell (7) inside wall, the shape and the trend of air guide skirtboard (601) match with the shape and the trend of quadrangular barrel shell (7) unanimously, the height of air guide skirtboard (601) is not less than 2 times of total gas outlet pipe (3) external diameter, distance between the lower terminal surface of heat transfer branch pipe (16) and water tank bottom plate (9) lower bottom surface matches and is not more than 3 times of heat transfer branch pipe (16) internal diameter with the internal diameter of heat transfer branch pipe (16).

7. The raw coke oven gas heat recovery and liquid and dust removal integrated device as claimed in claim 1, wherein: and a side wall heat-insulating layer (701) is arranged on the inner side of the quadrangular barrel shell (7) between the air distribution pipe insertion plate (13) and the air-steam partition plate (14).

Technical Field

The invention belongs to the technical field of coal chemical industry, and particularly relates to a raw gas heat recovery and liquid and dust removal integrated device.

Background

At present, coal dry distillation equipment such as furnace top dry distillation raw gas of a semi-coke furnace, furnace top raw gas of a coke furnace, raw gas of certain gas generators and the like generally has the high characteristics of organic volatile (or gasified) substances, dust, water vapor and the like, and the conventional dividing wall type cooling device can not effectively solve the problem of pipeline blockage caused by the volatile (or gasified) substances and dust of the low-boiling point organic substances in the gas, such as direct cooling of the coke furnace gas (the temperature of the raw gas is more than 800 ℃) by water or ammonia water, direct cooling of the semi-coke gas by water or ammonia water and water for the furnace top dry distillation raw gas of certain gas generators. The direct contact type cooling has the defects that a large amount of sensible heat of the coal gas cannot be recycled, the water consumption is high, organic toxic and harmful substances dissolved in discharged cooling water are remained, such as phenol, and the like, and the direct contact type cooling has the defects of more process equipment and large occupied space, for example, the dividing wall type cooling equipment which can recover the sensible heat in the raw gas, avoid the blockage of dust and organic fog drops easily, is further suitable for dust (or organic fog drops), can be large-sized, has high cooling efficiency and good cooling effect and can be used for high-temperature gas can be provided, and the direct contact type cooling equipment has positive significance for improving the coal gas quality, saving water resources, reducing the organic pollutants such as phenol contained in the discharged water of the contact type cooling equipment, and improving the economic benefit and the environmental protection benefit.

Disclosure of Invention

The invention aims to: the invention mainly aims at the situation and overcomes the defects of the prior art, and aims to provide the integrated device for the heat recovery and the liquid removal and dust removal of the raw gas, which has the advantages of high cooling efficiency, good cooling effect, capability of avoiding blockage of dust and organic fog drops, capability of recovering sensible heat and latent heat in the raw gas, capability of removing dust and moisture in the raw gas and compact equipment.

The technical scheme of the invention is as follows: the utility model provides a dust-containing high temperature gas vaporization cooling device, which comprises a raw gas inlet pipe component, a box barrel component, a main gas outlet pipe, a water replenishing pipe, a steam outlet pipe, a screw conveyor, an even gas distribution component and a liquid level meter, wherein the box barrel component comprises a four-edge barrel shell with a rectangular horizontal section, a shell barrel top cover, a water tank bottom plate and an inverted terrace-shaped bottom shell, the shell barrel top cover is a flat plate with a four-edge outline matched with the inner outline of the four-edge barrel shell, the shell barrel top cover is provided with a row of gas branch pipe inserting sleeve parts, the number of the gas branch pipe inserting sleeve parts is not less than two and is evenly distributed on the shell barrel top cover, the central axis of the gas branch pipe inserting sleeve parts on each row is vertical to the shell barrel top cover and is positioned on an upright plane, the water tank bottom plate is a plate with a four-edge outline matched with the inner outline of the four-edge barrel shell, the water tank bottom plate is provided with a plurality of evenly distributed heat exchange branch pipe sealing inserting sleeve parts, the end face of the big end of the bottom shell is matched and hermetically fixed with the lower end face of the quadrangular barrel shell, the barrel top cover is positioned at the upper top end of the quadrangular barrel shell, the water tank bottom plate is positioned on the inner side wall of the lower section of the quadrangular barrel shell, the barrel top cover and the water tank bottom plate are mutually parallel and are hermetically matched and fixed on the inner side wall of the quadrangular barrel shell, the distance between the water tank bottom plate and the upper end face of the bottom shell is matched with the outer diameter of the main air outlet pipe, the uniform air distribution assembly comprises an air distribution pipe insertion plate, an air-steam partition plate, a plurality of air distribution pipes and a plurality of heat exchange branch pipes, the air distribution pipe insertion plate is a rectangular plate provided with a plurality of air distribution pipe insertion through holes, the outline of each air distribution pipe insertion hole is matched with the outline of the quadrangular barrel shell, the air-steam partition plate is a rectangular plate provided with a plurality of air distribution pipe fixing through holes, and the outline of each air distribution pipe through holes on the air distribution pipe insertion plate are matched with the outline of the quadrangular barrel shell in number, The number of the heat exchange branch pipe sealing insertion sleeve parts on the water tank bottom plate is equal to the number of the air distribution pipe fixing through holes on the air-steam baffle plate, the positions of the air distribution pipe insertion through holes, the air distribution pipe fixing through holes and the heat exchange branch pipe sealing insertion sleeve parts are matched and correspond up and down, the air distribution pipe is an even air pipe part formed by smoothly communicating an inner cavity of a tapered conical pipe with an inner cavity of a tapered conical pipe through a throat straight pipe, the throat straight pipe of the air distribution pipe is provided with more than one radial through hole, the radial through holes are vertical to the central axis of the air distribution pipe, the inner diameter of each radial through hole is matched with the inner diameter of the throat straight pipe, the heat exchange branch pipe is a straight pipe part with a through center, the upper end part of the air distribution pipe is tightly matched and inserted into the air distribution pipe insertion through hole, the lower section of the air distribution pipe is tightly fixed with the air-steam baffle plate through the air distribution pipe fixing through holes, the lower bottom end of the air distribution pipe is sealed with the upper top end of the heat exchange branch pipe and the inner cavity is smoothly communicated, the lower sections of the heat exchange branch pipes extend out of a water tank bottom plate through the inner cavity of the heat exchange branch pipe sealing insertion sleeve component, a main air outlet pipe is positioned below the water tank bottom plate, above the large opening end face of a bottom shell and is communicated and connected with a quadrangular barrel shell in a matching way, a steam outlet pipe is communicated and connected with the side wall of the upper section of the quadrangular barrel shell below a gas-steam partition plate, a water replenishing pipe is positioned above the water tank bottom plate and is communicated and connected with the lower section of the quadrangular barrel shell in a matching way, the tail end of the water replenishing pipe is provided with a water replenishing control valve, a spiral conveyor is positioned at the small opening end of a bottom shell frustum and is communicated and connected with the bottom shell in a matching way, a discharge port pipe of the spiral conveyor is provided with a normally closed discharge valve, a crude gas inlet pipe component is composed of a descending inclined pipe, a plurality of uniformly distributed gas branch pipes and a dust liquid collecting cone, the trend of the descending inclined pipe is consistent with the arrangement trend of the central axis of the gas branch pipes, the lower section of each gas branch pipe is correspondingly inserted and inserted into a gas branch pipe sleeve component, the upper end of each gas branch pipe is communicated and fixed with a descending inclined pipe, a gas guide cone with a large upper part and a small lower part is fixed below the lower port of each gas branch pipe through a connecting rib plate, and the lower end of the descending inclined pipe is connected with an inlet pipe of a dust and liquid collecting cone barrel.

The steam outlet pipe and the water replenishing pipe are matched and correspond up and down on the box barrel assembly, a support is arranged on the lower portion of a bottom shell of the box barrel assembly, the liquid level meter is a float liquid level meter, the upper end of the liquid level meter is communicated and connected with the steam outlet pipe, the lower end of the liquid level meter is communicated and connected with the water replenishing pipe, a safety valve, a steam pressure meter and a relief valve are arranged on the steam outlet pipe, and a steam control valve is further arranged at the tail end of the steam outlet pipe.

The heat exchange branch pipe sealing insertion sleeve component is composed of a pipe shell piece, a sealing filler and a sealing ring cover, wherein the inner cavity of the pipe shell piece is a stepped through hole, the outline of the pipe shell piece is cylindrical, the sealing ring cover is in a stepped column platform shape, an inner sealing thread is arranged in a large-diameter port of the stepped through hole of the pipe shell piece, an outer sealing thread is arranged at a small-diameter section of a stepped column platform of the sealing ring cover, the inner sealing thread of the pipe shell piece is matched with the outer sealing thread of the sealing ring cover, a large-diameter port of the stepped through hole of the heat exchange branch pipe sealing insertion sleeve component faces downwards, the inner diameter of a small-diameter port of the stepped through hole of the pipe shell piece is closely matched with the outer diameter of the heat exchange branch pipe, the heat exchange branch pipe sealing insertion sleeve component is fixedly connected with a water tank bottom plate, and the sealing filler is pressed in a gap among the inner cavity of the pipe shell piece, the circular sealing ring cover and the outer wall of the heat exchange branch pipe.

The gas branch pipe inserting casing part comprises a bottom ring plate, a straight cylinder pipe, an annular flange plate and an annular plate cover provided with a boss ring, wherein the bottom ring plate is fixedly connected with the inner side of the lower end of the straight cylinder pipe, the annular flange plate is fixedly connected with the outer side of the upper end of the straight cylinder pipe, the annular flange plate is provided with a plurality of uniformly distributed threaded through holes, the annular plate cover is provided with a plurality of uniformly distributed screw through holes, the diameter of each threaded through hole is matched with that of each screw through hole, the positions of the threaded through holes are vertically and correspondingly matched with that of the screw through holes, the inner diameter of the bottom ring plate and the inner diameter of the annular flange plate, the inner diameter of the annular plate cover is matched with the outer diameter of the hot gas main pipe, the annular flange plate and the annular plate cover are tightly connected together through screws arranged in the thread through holes and the screw through holes, and a sealing filler piece is pressed in a gap enclosed by the bottom annular plate, the straight cylinder pipe, the annular flange plate, the annular plate cover and the hot gas main pipe.

The upper section of the quadrangular barrel shell is provided with an overflow port pipe in a matching way, the overflow port pipe is provided with an overflow control valve, and the lower section of the quadrangular barrel shell is provided with a normally closed type decontamination valve at the position matching part with the water replenishing pipe.

The lower surface of water tank bottom plate be equipped with air guide skirtboard, air guide skirtboard is located outside the heat transfer branch pipe place region, within the quadrangular barrel shell inside wall, the shape and the trend of air guide skirtboard and the shape and the trend of quadrangular barrel shell are unanimously matchd, air guide skirtboard's height is not less than 2 times of total gas outlet pipe external diameter, distance between the lower terminal surface of heat transfer branch pipe and the bottom surface under the water tank bottom plate matches and is not more than 3 times of heat transfer branch pipe internal diameter with the internal diameter of heat transfer branch pipe.

And a side wall heat-insulating layer is arranged on the inner side of the quadrangular barrel shell between the air distribution pipe insertion plate and the air-steam partition plate.

The invention has the beneficial effects that: the invention achieves the effects of reducing the temperature of the coal gas and recovering the heat energy in the furnace top to prepare steam through dividing wall type vaporization cooling, and also achieves the purposes of removing dust, organic matter condensate, steam and water in the raw gas and eliminating the negative effects generated by direct water spraying and the like. The parts and the related structure of the invention overcome the defect that the hot air flow is respectively uneven among the heat exchange tubes in the prior art, achieve the effect of uniform distribution of the air flow, improve the heat efficiency and the heat exchange rate of heat exchange, and effectively avoid the phenomenon that the condensation fog drops containing dust or organic volatile matters block the heat exchange pipelines to reduce the heat exchange (cooling) effect. The invention has the characteristics of compact equipment, small occupied space, long service life and good safety.

Drawings

Fig. 1 is an external view schematically showing the main components of the present invention.

Fig. 2 is an assembled sectional view of main parts of the present invention.

Fig. 3 is a schematic external view of the top cover of the shell of the present invention.

FIG. 4 is a schematic view of the shape of the gas distribution pipe insertion plate of the present invention.

Fig. 5 is a schematic view of the outer shape of the gas-vapor separator of the present invention.

Fig. 6 is a schematic external view of the bottom plate of the water tank of the present invention.

Fig. 7 is an assembled cross-sectional view of the gas branch pipe and the gas branch pipe insertion sleeve member of the present invention.

Fig. 8 is a schematic structural diagram of the annular cover plate of the present invention.

FIG. 9 is a schematic view of the connection structure of the straight-through pipe, the bottom ring plate and the annular flange plate of the invention.

Fig. 10 is an assembled cross-sectional view of the heat exchange branch pipe and the heat exchange branch pipe sealing insert sleeve component of the present invention.

FIG. 11 is a partial assembled cross-sectional view of the gas distribution pipe, the gas distribution pipe insertion plate, and the gas-vapor separator plate of the present invention.

Fig. 12 is a working principle diagram of the uniform gas distribution of the present invention.

Fig. 13 is a working principle diagram of the present invention.

Wherein: 1 is a raw gas inlet pipe component; 2 is a box cylinder component; 3 is a total air outlet pipe; 4 is a water replenishing pipe; 5 is a steam outlet pipe; 6 is a screw conveyer; 7 is a quadrangular barrel shell; 8 is a shell top cover; 9 is a water tank bottom plate; 10 is a bottom shell; 11 is a gas branch pipe plug-in sleeve component; 12 is a heat exchange branch pipe sealing plug-in sleeve component; 13 is a gas distribution pipe insertion plate; 14 is a gas-vapor separator; 15 is a gas distribution conduit; 16 is a heat exchange branch pipe; 17 is a through hole inserted by an air distribution conduit; 18 is a fixing through hole of the gas distribution pipe; 19 is a tapered conical pipe; 20 is a straight pipe with a throat; 21 is a gradually expanding taper pipe; 22 is a radial through hole; 23 is a normally closed discharge valve; 24 is a descending inclined tube; 25 is a gas branch pipe; 26 is a dust and liquid collecting cone; 27 is a connecting rib plate; 28 is an air guide cone; 201 is a bracket; 202 is a float level gauge; 203 is a safety valve; 204 is a steam pressure gauge; 205 is a bleed valve; 206 is a steam control valve; 301 is a tube shell member; 302 is a sealing filler; 303 is a sealing ring cover; 401 is a bottom ring plate; 402 is a straight bobbin; 403 is an annular flange; 404 is an annular plate cover; 405 is a threaded through hole; 406 is a screw through hole; 407 is a packing seal; 501 is an overflow port pipe; 502 is an overflow control valve; 503 is a normally closed type decontamination valve; 601 is an air guide apron board; 701 is a side wall insulating layer.

The specific implementation mode is as follows:

the following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

The vaporization cooling device for dust-containing high-temperature gas is shown by figures 1 to 13 and comprises a raw gas inlet pipe component 1, a box barrel component 2, a total gas outlet pipe 3, a water replenishing pipe 4, a steam outlet pipe 5, a screw conveyor 6, an even gas distribution component and a liquid level meter, wherein the box barrel component 2 comprises a quadrangular barrel shell 7 with a rectangular horizontal section, a barrel top cover 8, a water tank bottom plate 9 and a bottom shell 10 in an inverted trapezoidal shape, the barrel top cover 8 is a flat plate with a quadrangular outline matched with the quadrangular barrel shell 7, a row of gas branch pipe inserting sleeve parts 11 is arranged on the barrel top cover 8, the number of the gas branch pipe inserting sleeve parts 11 is not less than two and is evenly distributed on the barrel top cover 8, the central axis of the gas branch pipe inserting sleeve part 11 on each row is vertical to the barrel top cover 8 and is positioned on an upright plane, the water tank bottom plate 9 is a plate with a quadrangular outline matched with the quadrangular barrel shell 7, a plurality of uniformly distributed heat exchange branch pipe sealing insertion sleeve parts 12 are arranged on the water tank bottom plate 9, the end surface of the big end of the bottom shell 10 is matched and hermetically fixed with the lower end surface of the quadrangular barrel shell 7, the shell top cover 8 is positioned at the upper top end of the quadrangular barrel shell 7, the water tank bottom plate 9 is positioned on the inner side wall of the lower section of the quadrangular barrel shell 7, the shell top cover 8 and the water tank bottom plate 9 are mutually parallel and hermetically matched and fixed on the inner side wall of the quadrangular barrel shell 7, the distance between the water tank bottom plate 9 and the upper end surface of the bottom shell 10 is matched with the outer diameter of the main air outlet pipe 3, the uniform air distribution component is composed of an air distribution pipe insertion plate 13, an air-steam partition plate 14, a plurality of air distribution pipes 15 and a plurality of heat exchange branch pipes 16, the air distribution pipe insertion plate 13 is a rectangular plate which is provided with a plurality of air distribution pipe through holes 17 and the four sides of which are matched with the inner contour of the quadrangular barrel shell 7, the air-steam partition plate 14 is a plurality of air distribution pipe fixing through holes 18 and the four sides of which are matched with the inner contour of the quadrangular barrel shell 7 The number of the air distribution duct inserting through holes 17 on the air distribution duct inserting plate 13 and the number of the heat exchange branch pipe sealing inserting sleeve parts 12 on the water tank bottom plate 9 are equal to the number of the air distribution duct fixing through holes 18 on the air-steam baffle plate 14, the positions of the air distribution duct inserting through holes 17, the air distribution duct fixing through holes 18 and the heat exchange branch pipe sealing inserting sleeve parts 12 are matched and correspond up and down, the air distribution duct 15 is an air-homogenizing pipe formed by matching and smoothly communicating an inner cavity tapered pipe 19 with an inner cavity tapered conical pipe 21 through a throat straight pipe 20, more than one radial through hole 22 is arranged at the throat straight pipe 20 of the air distribution duct 15, the radial through hole 22 is vertical to the central axis of the air distribution duct 15, the inner diameter of the radial through hole 22 is matched with the inner diameter of the throat straight pipe 20, the heat exchange branch pipe 16 is a through straight pipe part with the center, the upper end part of the air distribution duct 15 is tightly matched and inserted in the air distribution duct through holes 17, the lower section of an air distribution guide pipe 15 is hermetically fixed with an air-steam partition plate 14 through an air distribution pipe fixing through hole 18, the lower bottom end of the air distribution guide pipe 15 is hermetically communicated with the upper top end of a heat exchange branch pipe 16, the inner cavity of the heat exchange branch pipe 16 is smooth, the lower section of the heat exchange branch pipe 16 extends out of a water tank bottom plate 9 through the inner cavity of a heat exchange branch pipe sealing insertion sleeve component 12, a main air outlet pipe 3 is positioned below the water tank bottom plate 9, above the large opening end face of a bottom shell 10 and matched with the square barrel shell 7 and is communicated with the square barrel shell 7, a steam outlet pipe 5 is communicated and connected with the side wall of the upper section of the square barrel shell 7 and fixed below the air-steam partition plate 14, a water supplementing pipe 4 is positioned above the water tank bottom plate 9 and matched with the lower section of the square barrel shell 7 and is communicated and connected with the lower section of the square barrel shell 7, the tail end of the water supplementing pipe 4 is provided with a water supplementing control valve, a spiral conveyor 6 is positioned at the small opening end of a cone of the bottom shell 10 and matched with the bottom shell and is communicated with the bottom shell 10, a discharge port pipe of the spiral conveyor 6 is provided with a normal discharge valve 23, the raw gas inlet pipe assembly 1 is composed of a descending inclined pipe 24, a plurality of uniformly distributed gas branch pipes 25 and a dust liquid collecting cone barrel 26, the trend of the descending inclined pipe 24 is consistent with the arrangement trend of the central axis of the gas branch pipes 25, the lower section of each gas branch pipe 25 is correspondingly inserted into a gas branch pipe insertion sleeve part 11, the upper end of each gas branch pipe 25 is communicated and fixed with the descending inclined pipe 24, a gas guide cone 28 with a large upper part and a small lower part is fixed below the lower end opening of each gas branch pipe 25 through a connecting rib plate 27, and the lower end of the descending inclined pipe 24 is connected with an inlet pipe of the dust liquid collecting cone barrel 26.

The steam outlet pipe 5 is matched with and corresponds to the water replenishing pipe 4 on the tank barrel assembly 2 up and down, the lower part of the bottom shell 10 of the tank barrel assembly 2 is provided with a support 201, a liquid level meter is a float liquid level meter 202, the upper end of the liquid level meter is communicated and connected with the steam outlet pipe 5, the lower end of the liquid level meter is communicated and connected with the water replenishing pipe 4, the steam outlet pipe 5 is provided with a safety valve 203, a steam pressure meter 204 and a bleeding valve 205, and the tail end of the steam outlet pipe 5 is also provided with a steam control valve 206.

The heat exchange branch pipe sealing and inserting sleeve part 12 is composed of a pipe shell 301 with a stepped through hole in the inner cavity, a cylindrical outline, a sealing filler 302 and a sealing ring cover 303 with a stepped pedestal shape in the outline, an inner sealing thread is arranged in a large-diameter port of the stepped through hole of the pipe shell 301, an outer sealing thread is arranged at a small-diameter section of the stepped pedestal of the sealing ring cover 303, the inner sealing thread of the pipe shell 301 is matched with the outer sealing thread of the sealing ring cover 303, a large-diameter port of the stepped through hole of the heat exchange branch pipe sealing and inserting sleeve part 12 faces downwards, the inner diameter of the small-diameter port of the stepped through hole of the pipe shell 301 is closely matched with the outer diameter of the heat exchange branch pipe 16, the heat exchange branch pipe sealing and inserting sleeve part 12 is fixedly connected with the water tank bottom plate 9, and the sealing filler 302 is pressed in a gap among the inner cavity of the pipe shell 301, the circular sealing ring cover 303 and the outer wall of the heat exchange branch pipe 16.

The gas branch pipe inserting casing part 11 is composed of a bottom ring plate 401, a straight barrel pipe 402, an annular flange plate 403 and an annular plate cover 404 provided with a boss ring, the bottom ring plate 401 is fixedly connected to the inner side of the lower end of the straight barrel pipe 402, the annular flange plate 403 is fixedly connected to the outer side of the upper end of the straight barrel pipe 402, the annular flange plate 403 is provided with a plurality of uniformly distributed threaded through holes 405, the annular plate cover 404 is provided with a plurality of uniformly distributed screw through holes 406, the diameters of the threaded through holes 405 are matched with those of the screw through holes 406, the positions of the threaded through holes 405 and the positions of the screw through holes 406 are correspondingly matched up and down, the inner diameter of the bottom ring plate 401, the inner diameter of the annular flange plate 403 and the inner diameter of the annular plate cover 404 are matched and larger than the outer diameter of the hot gas main pipe 8, the annular flange plate 403 and the annular plate cover 404 are tightly connected together through screws arranged in the threaded through holes 405 and the screw through holes 406, and the bottom ring plate 401, the straight barrel pipe 402, the annular flange plate 403 and the annular flange plate cover 404 are tightly connected together through screws arranged in the threaded through holes 405 and the screw through holes 406, A sealing packing member 407 is pressed into a gap defined by the annular plate cover 404 and the hot gas manifold 8.

The upper section of the quadrangular barrel shell 7 is provided with an overflow port pipe 501 in a matching way, the overflow port pipe 501 is provided with an overflow control valve 502, and the lower section of the quadrangular barrel shell 7 is provided with a normally closed type decontamination valve 503 at the position matching with the water replenishing pipe 4.

The lower surface of the water tank bottom plate 9 is provided with an air guide apron plate 601, the air guide apron plate 601 is positioned outside the area where the heat exchange branch pipes 16 are positioned and inside the inner side wall of the quadrangular barrel shell 7, the shape and the trend of the air guide apron plate 601 are matched with the shape and the trend of the quadrangular barrel shell 7 in a consistent manner, the height of the air guide apron plate 601 is not less than 2 times of the outer diameter of the total air outlet pipe 3, and the distance between the lower end surface of the heat exchange branch pipe 16 and the lower bottom surface of the water tank bottom plate 9 is matched with the inner diameter of the heat exchange branch pipe 16 and is not more than 3 times of the inner diameter of the heat exchange branch pipe 16.

And a side wall heat preservation layer 701 is arranged on the inner side of the quadrangular barrel shell 7 between the air distribution pipe insertion plate 13 and the air-steam partition plate 14.

The first embodiment is as follows: the invention is used for furnace top raw gas of a semi-coke furnace (the temperature is 150 ℃, the total sum of dust-containing volatile matters with low boiling points is 120 g/m)³And containing a large amount of superheated steam), recovering the latent heat of steam in the gas and removing part of dust and volatile matters with low boiling points. Before operation, the components are prepared and connected and assembled, the inner diameter of a descending inclined pipe 24 of the raw coke oven gas inlet pipe component 1 is 400mm, the inner diameter of a gas branch pipe 25 is 100mm, the total height of the box barrel component 2 is 8 m, the total height of a quadrangular barrel shell 7 is 6 m, the length of the quadrangular barrel shell 7 is 8 m, the length of a heat exchange branch pipe 16 is 4.2 m, the inner diameter of the heat exchange branch pipe 16 is 40mm, and when the device is used, the descending inclined pipe 24 of the raw coke oven gas inlet pipe component 1 is dried on the furnace top through an externally-arranged hot gas valveThe distilled gas pipe is connected, the main gas outlet pipe 3 is connected with the gas outlet pipeline through an externally-distributed gas valve, the water supplementing pipe 4 and the water supplementing control valve are connected with an externally-distributed water supply system, the liquid level meter and the overflow control valve 502 are integrally matched to control the water level in the quadrangular barrel shell 7 to be at a proper position (shown as H in figure 13), and the steam outlet pipe 5 and various associated steam valves are in a normal state. When the dust-containing high-temperature gas-dust-collecting device is used, the dust-containing high-temperature gas flows to the gas branch pipes 25 through the raw gas inlet pipe assembly 1, flows through the primary flow diversion of the gas guide cone 28, flows into the upper end opening of each gas distribution guide pipe 15 under the restraint of the inner wall of the quadrangular barrel shell 7 and the shell barrel top cover 8, flows into the air guide skirt board 601 through the heat exchange branch pipes 16, flows into the bottom shell 10 under the restraint of the air guide skirt board 601 and the surface of tar (or ash) deposited in the bottom shell 10, flows obliquely upwards to the inner wall of the quadrangular barrel shell 7 after being blocked by the tar (material) surface, and flows out of the gas outlet pipe 3 through the annular gap between the air guide skirt board 601 and the quadrangular barrel shell 7 under the restraint of the inner wall and the air guide skirt board 601; in the process that the raw gas passes through the heat exchange branch pipe 16, the raw gas is subjected to heat exchange with water through the pipe wall of the heat exchange branch pipe 16 and is cooled to a temperature below the boiling point of the water and even close to the temperature of the supplementary water, so that the purpose of cooling the high-temperature gas is achieved, and meanwhile, the water in the box barrel component 2 is heated and vaporized to become water vapor which can be directly used as a steam engine. In the process, low-boiling-point organic volatile matters in the raw gas in the heat exchange branch pipe 16 are cooled to generate condensed fog drops, then the condensed fog drops, dust and gas enter a dust collection chamber (a space region surrounded by the water tank bottom plate 9, the conical barrel-shaped bottom shell 10 and the quadrangular barrel shell 7), finally, the dust and the condensed fog drops are flushed to the bottom shell 10 or a liquid (material) surface and deposited in the dust collection chamber (a cavity surrounded by the bottom shell 10, the water tank bottom plate 9 and the quadrangular barrel shell 7) under the action of inertia, the gas flows upwards through the blocking and reflection of the liquid (material) surface, the purpose of removing or reducing the dust and the condensed fog drops in the gas is achieved, and the spiral conveyor 6 is started by a machine selection and a normally-closed discharge valve 23 is opened to discharge the collected matters in the bottom shell 10 to an externally-matched liquid (material) collection facility. The temperature of the raw gas is reduced to 70 ℃ after the raw gas is treated by the invention, and the dust in the gas is reduced to 0.3g/m³And to obtain a temperature of108 ℃ atmospheric steam, when the invention is used for treating raw coke oven gas, the side wall insulating layer in the quadrangular barrel shell 7 between the gas distribution pipe inserting plate 13 and the gas-steam partition plate 14 reduces heat loss and prevents organic matters with higher boiling points from condensing at the inner side of the quadrangular barrel shell 7 due to the cooling effect of air on the outer wall (the raw coke oven gas of the semi-coke oven is only about 150 ℃).

Example two: the raw gas (the gas temperature is 800 ℃, the total of dust-containing volatile matters with low boiling points is 70 g/m)³And containing a large amount of superheated steam), recovering the latent heat of steam in the gas and removing part of dust and volatile matters with low boiling points. Before operation, the components are prepared and connected and assembled, the inner diameter of a descending inclined pipe 24 of a raw gas inlet pipe component 1 is 800mm, the inner diameter of a gas branch pipe 25 is 100mm, the total height of a box barrel component 2 is 8 m, the total height of a square barrel shell 7 is 6 m, the length of the square barrel shell 7 is 12 m, the length of a heat exchange branch pipe 16 is 4.2 m, and the inner diameter of the heat exchange branch pipe 16 is 32 mm. When the invention is used for treating raw coke oven gas, the side wall heat-insulating layer positioned between the gas distribution pipe insertion plate 13 and the gas-steam partition plate 14 in the quadrangular barrel shell 7 reduces heat loss and avoids overhigh temperature of the outer wall of the quadrangular barrel shell 7. When the invention is used, the wall of the heat exchange branch pipe 16 and the water in the quadrangular barrel shell 7 are subjected to dividing wall type heat exchange, the raw gas is cooled to a temperature below the boiling point of the water and even close to the temperature of the supplementary water, thus the aim of cooling the high-temperature gas is achieved, and meanwhile, the water in the box barrel component 2 is heated and vaporized to become water vapor which can be directly used as a heat source. In the use process of the invention, low boiling point organic volatile matters in the raw coke oven gas in the heat exchange branch pipe 16 are cooled to generate condensed fog drops, and then the condensed fog drops, dust and gas enter the dust collection chamber (comprising the water tank bottom plate 9, the conical barrel-shaped bottom shell 10 and the quadrangular barrel)Spatial region that shell 7 encloses), finally, dust, condensation droplet rush towards drain pan 10 or liquid (material) face and deposit at the dust collecting chamber (the cavity that drain pan 10, water tank bottom plate 9 and four arris section of thick bamboo shells 7 enclose) under inertial effect, and gaseous through the stopping of liquid (material) face, the reflection upwards flows, has realized dust and condensation droplet desorption or the purpose that reduces in the gas, the machine selection starts screw conveyer 6 and opens the collection discharge valve 23 of normal close formula in with drain pan 10 and discharges the liquid (material) facility of receiving of external complex. The invention realizes the effect and the purpose of integrating heat exchange and dust tar removal, and has the characteristics of compact structure and small occupied space.

When the invention is applied, an isobaric chamber with equal gas static pressure is formed in the inner cavity gap among the gas distribution pipe insertion plate 13, the gas-steam separation plate 14 and the quadrangular barrel shell 7 (a region shown by V-V in figures 12 and 13, and the arrows in figures 12 and 13 show the gas flow direction), the radial through hole 22 of each gas distribution pipe 15 is communicated with the isobaric chamber, when the gas flow flows into the gas distribution pipes 15, the gas flow flows through the conical cavity with gradually contracted area, the energy conversion process that the flow speed is increased and the pressure is reduced is generated, when the gas flow entering the gas distribution pipes 15 is unevenly distributed, the pressure energy, namely the gas pressure and the kinetic energy, entering the adjacent or separated gas distribution pipes 15 are unequal, so that the gas static pressure in the radial through holes between the adjacent or separated gas distribution pipes 15 is unequal at the straight throat pipe 22, and the pressure difference between the gas in the gas isobaric chamber and the gas at the straight throat pipe 22 can be generated, and then the phenomenon that the gas in the gas distribution conduit 15 flows out of the straight throat opening 22 (the gas distribution conduit 15 has strong airflow) or the gas in the isobaric chamber flows into the straight throat opening 22 (the gas distribution conduit 15 has weak airflow) is generated, the airflow flows through the gas distribution conduit 15 and the isobaric chamber and then enters the heat exchange branch pipes 16 to generate an effect of uniform distribution, the gradually-expanding taper pipe 21 of the gas distribution conduit 15 increases the back pressure of the gas at the straight throat opening 22 and simultaneously achieves the matching property and the smoothness of the inner cavity between the gas distribution conduit 15 and the heat exchange branch pipes 16, so that the effect of uniform distribution of the airflow in each heat exchange branch pipe 16 is achieved, the hidden danger and the risk of pressurized steam or water leakage caused by strength failure due to overheating of individual heat exchange branch pipes 16 caused by uneven distribution of high-temperature airflow can be avoided, and the invention has the characteristics of long service life, good safety and high cooling efficiency. The temperature of the treated cooling gas is close to the temperature of the make-up water, so that the method has the characteristic of recovering sensible heat and latent heat in the raw gas. The gas treated by the method has low temperature (lower than the boiling point of water), and the water, dust and organic volatile matters in the raw gas are basically removed, so that the requirements of conventional dry-method purification equipment on the gas, the moisture content (the total amount of water and organic liquid substances) and the temperature can be met.

When the gas branch pipe assembly is used, the gas branch pipe inserting sleeve piece 11 and the assembly structure of the gas branch pipe inserting sleeve piece and the gas branch pipe 25 can meet the requirement that the gas branch pipe 25 can freely stretch out and draw back in the vertical direction, and the phenomenon of welding or cracking at the joint of the gas branch pipe 25 and the quadrangular barrel shell 7 due to thermal stress is avoided.

When the heat exchange branch pipe sealing plug-in cover component is used, the assembly structure of the pipe shell component 301, the sealing filler 302, the sealing ring cover 303 and the heat exchange branch pipe 16 of the heat exchange branch pipe sealing plug-in cover component 12 ensures sealing and can allow the heat exchange branch pipe 16 to stretch in the length direction when being heated or cooled, and in addition, the heat exchange branch pipe sealing plug-in cover component 12 and the water tank bottom plate 9 are both positioned in the area below the water surface, so the temperature is low, and the sealing among the components is simple and easy. When the invention is used, the upper end part of the gas distribution conduit 15 is inserted into the gas distribution conduit insertion hole 13 in a transition fit mode, the heat exchange branch pipe 16 and the gas-steam baffle plate 14 are hermetically welded together by adopting steel materials made of the same material and the gas-steam baffle plate 14, and the gas distribution conduit 15 and the heat exchange branch pipe 16 are connected (welded) into an integral heat exchange component to form a structure with the gas-steam baffle plate 14 as a fixed point and two ends capable of freely stretching, so that the cracking and steam leakage phenomena caused by thermal stress of the heat exchange branch pipe 16 and the gas-steam baffle plate 14 can be greatly reduced or avoided, and the service life and the safety of the invention are improved.

The invention achieves the effects and purposes of reducing the temperature of the coal gas, recovering the heat energy in the furnace top to prepare steam and removing dust, organic matter condensate, steam and free water in the raw gas by a dividing wall type vaporization cooling mode, and eliminates the negative effects generated by direct water spraying and the like. The parts and the related structure of the invention overcome the defect that the hot air flow is respectively uneven among the heat exchange tubes in the prior art, achieve the effect of uniform distribution of the air flow, improve the heat efficiency and the heat exchange rate of heat exchange, and effectively avoid the phenomenon that the condensation fog drops containing dust or organic volatile matters block the heat exchange pipelines to reduce the heat exchange (cooling) effect. The invention has the characteristics of compact equipment, small occupied space, long service life and good safety.