阅读说明：本技术 一种高温可燃焦油气体旋转式冷却回收装置 (High-temperature combustible tar gas rotary type cooling and recycling device ) 是由 王诚 李磊 任磊 王晓琳 张文明 于 2019-11-14 设计创作，主要内容包括：本发明公开了一种高温可燃焦油气体旋转式冷却回收装置,涉及废气处理设备领域,包括机架、电机、机壳和旋转轴,在机壳内设有旋转冷却器和旋转捕捉器,旋转冷却器和旋转捕捉器均固接在旋转轴上,并随旋转轴转动；旋转冷却器包括固定插接至旋转轴上的导热管；旋转捕捉器包括固定套接在旋转轴上的捕捉片；在中部机壳内壁上设有扰流板,扰流板设于旋转捕捉器侧下方,扰流板周边具有向上弯折结构,弯折结构与中部机壳内壁之间形成接油槽,且在接油槽位置的扰流板上开设有漏油孔。本发明的旋转式冷却回收装置结构紧凑合理,体积小,使用效果好,具有冷却、回收效率高的特点。(The invention discloses a rotary cooling and recovering device for high-temperature combustible tar gas, which relates to the field of waste gas treatment equipment and comprises a rack, a motor, a shell and a rotating shaft, wherein a rotary cooler and a rotary catcher are arranged in the shell, and the rotary cooler and the rotary catcher are fixedly connected on the rotating shaft and rotate along with the rotating shaft; the rotary cooler comprises a heat conduction pipe fixedly inserted on the rotary shaft; the rotary catcher comprises a catching sheet fixedly sleeved on the rotating shaft; the spoiler is arranged on the inner wall of the middle shell and is arranged below the side of the rotary catcher, the periphery of the spoiler is provided with an upward bending structure, an oil receiving groove is formed between the bending structure and the inner wall of the middle shell, and the oil leakage hole is formed in the spoiler at the position of the oil receiving groove. The rotary cooling and recycling device has the characteristics of compact and reasonable structure, small volume, good use effect and high cooling and recycling efficiency.)

1. A rotary cooling and recycling device for high-temperature combustible tar gas comprises a rack, a motor arranged on the side part of the rack, a machine shell arranged at the top of the rack and a rotating shaft penetrating through the machine shell, wherein the machine shell comprises a middle machine shell, a lower machine shell and an upper machine shell, the lower machine shell comprises an air inlet formed in the side part and a lower through hole formed in the center of the bottom, and the upper machine shell comprises an air outlet formed in the side part and an upper through hole formed in the center of the top; the rotating shaft is provided with a lower through hole and an upper through hole in a penetrating manner and is fixedly connected with the lower shell and the upper shell through a lower sealer and an upper sealer respectively; the rotating shaft is in transmission connection with the motor; the method is characterized in that:

one or more rotary coolers and one or more rotary catchers are arranged in the shell, and the rotary coolers and the rotary catchers are fixedly connected to the rotating shaft and rotate along with the rotating shaft;

the rotary cooler comprises 1 or more heat conduction pipes fixedly inserted on the rotating shaft, and the heat conduction pipes are annularly arranged by taking the rotating shaft as a center; saturated media are arranged in the heat conduction pipes;

the rotary catcher comprises 1 or more catching sheets fixedly sleeved on the rotating shaft, and the catching sheets are layered along the height direction of the rotating shaft; a plurality of hollowed-out strip holes are formed in the catching sheet and are arranged in an annular array along the radial direction of the rotating shaft;

the oil catcher is characterized in that one or more annular spoilers are arranged on the inner wall of the middle shell, the spoilers correspond to the rotary catcher one by one and are arranged below the side of the rotary catcher, an upward bending structure is arranged on the periphery of each spoiler, an oil receiving groove is formed between each bending structure and the inner wall of the middle shell, and oil leakage holes are formed in the spoilers at the position of the oil receiving groove.

2. The rotary cooling and recycling device for high-temperature combustible tar gas as claimed in claim 1, wherein the lower casing comprises an oil outlet at the bottom, the oil outlet is connected with an oil outlet pipe, and the oil outlet pipe is provided with an oil drain valve.

3. The rotary cooling and recycling device for high-temperature combustible tar gas according to claim 1, wherein the saturated medium is pure alcohol in a vacuum state.

4. The rotary cooling and recycling device for high-temperature combustible tar gas according to claim 1, wherein the capturing piece is disc-shaped and comprises a first circular hole sleeved on the rotating shaft at the center.

5. The rotary cooling and recycling device for high-temperature combustible tar gas as claimed in claim 4, wherein the rotary catcher is formed by stacking 2 catching sheets.

6. The rotary cooling and recycling device for high-temperature combustible tar gas according to claim 1, wherein the rotary cooler and the rotary catcher are alternately arranged.

7. The rotary cooling and recycling device for high-temperature combustible tar gas as claimed in claim 1, wherein the frame comprises a top support plate, a circular opening is provided at the center of the support plate, the casing is fixedly connected in the circular opening, and the lower casing is located below the support plate.

8. The rotary cooling and recycling device for high-temperature combustible tar gas as claimed in claim 1, wherein the catching sheet is made of stainless steel.

Technical Field

The invention relates to the technical field of cooling and recycling high-temperature combustible tar gas contained in waste gas of a vacuum high-temperature carbonization furnace in the manufacturing process of polyacrylonitrile carbon fibers, in particular to a device for efficiently cooling, capturing and recycling tar, which can realize effective cooling and recycling of tar and is beneficial to safe and reliable combustion treatment of the rear section of the waste gas.

Background

Polyacrylonitrile (PAN) based carbon fiber production is a process of continuously removing impurity elements (mainly H, N, O, K, Na), reducing defects, purifying and reforming carbon chains, and mainly comprises two processes of protofilament production and protofilament carbonization. The protofilament production process mainly comprises the working procedures of polymerization, defoaming, metering, spinning, traction, water washing, oiling, drying and filament collection and the like. The carbonization process mainly comprises the working procedures of filament unwinding, pre-oxidation, low-temperature carbonization, high-temperature carbonization, surface treatment, sizing drying, filament winding and the like. The process of removing impurity elements mainly comprises the working procedures of low-temperature carbonization and high-temperature carbonization, mainly comprises the steps of carrying out physical and chemical reactions and the like on polyacrylonitrile and additives such as alcohol, resin and the like in a vacuum carbonization furnace at the temperature of 1000-2000 ℃, converting impurities into gas to be discharged along with a vacuum pump, and carbonizing carbon elements to prepare carbon fibers.

During carbonization in a vacuum carbonization furnace, a large amount of gas (40-70% of the feeding weight) converted from impurities is discharged out of the carbonization furnace, the components of mixed gas (hereinafter referred to as tar waste gas) are very complex, C, H, O-bonded various compounds, K, Na compounds, extremely toxic cyanides and a mixture of partial solid which is sublimated under high-temperature vacuum are available.

Today, the environmental protection requirements are increasingly strict, the tar waste gas is not allowed to be directly discharged and is allowed to be discharged after being treated to reach the standard. At present, aiming at the high-temperature combustible oil fume waste gas with complex components, the mature and effective treatment processes comprise three types: one is a cooling recovery method, one is a direct combustion method, and the other is an oil fume purification method. However, the methods have low actual treatment efficiency, have great potential safety hazards and are difficult to popularize.

The three treatment methods aiming at the tar waste gas respectively have the following defects:

1. the cooling recovery method has the following defects: the traditional cooling method is that gas to be cooled is introduced into a cooler to be cooled and condensed, some substances with low boiling points are attached to the inside of the cooler and enter an oil storage bin under the action of gravity, and some substances with high viscosity, such as liquid, solid, semisolid and the like need to be manually cleaned, otherwise, the substances are attached to the cooler to influence the cooling effect. The temperature of the tar waste gas of the vacuum high-temperature carbonization furnace is up to 2000 ℃, the tar waste gas is rapidly cooled after entering the cooler, a large amount of oil and solid are solidified into particles, partial substances are difficult to flow under the action of gravity, and are attached to the cooler for a long time, so that the cooler is seriously corroded. If every carbide furnace is furnished with a traditional cooler, should blame and need a stove of production, the cooler is once cleared up to the manual work, otherwise can reduce the cooling and retrieve the effect, greatly reduced production efficiency, improved the running cost of environmental protection equipment.

2. The direct combustion method has the following defects: for organic waste gas with complex components, the combustion method is the most efficient and stable method for removing, and under the condition of sufficient oxygen, the organic waste gas can be completely decomposed by maintaining the temperature of 800 ℃ for 0.2 s. However, the discharge of tar waste gas is intermittent, the concentration of combustible gas can reach over 90 percent at the moment of discharge, and oxygen is insufficient and cannot be completely decomposed and combusted; when waste gas is not discharged, a large amount of combustible gas exists in the waste gas pipeline for a long time, and serious potential safety hazards exist on combustion equipment, a draught fan, pipelines, a carbonization furnace and operators.

3. The oil fume purification method has the following defects: for macromolecular organic waste gas, the oil smoke purifier has the best effect, but the tar waste gas emission is intermittent, the concentration of combustible gas can reach more than 90% at the moment of waste gas emission, the waste gas components are very complex, the temperature is very high, and the single oil smoke purification method cannot effectively remove the waste gas. Meanwhile, the oil fume purification method has deflagration risk as the combustion method.

In conclusion, no matter the cooling recovery method, the direct combustion method or the oil fume purification method, the single treatment method can not safely and effectively treat the tar waste gas to reach the standard. The most safe and efficient treatment method of the tar waste gas is to cool and recycle macromolecular substances such as oil smoke, particles and the like in the waste gas, reduce combustible components in the waste gas, protect pipelines and environment-friendly equipment from being attached and influenced by oil substances and solid particles, and then safely introduce the waste gas into a combustion furnace for full combustion.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a rotary type cooling and recycling device for high-temperature combustible tar gas, which can be used for cooling and recycling macromolecular substances such as oil smoke, particles and the like in tar waste gas, reducing combustible components in the waste gas, protecting pipelines and environment-friendly equipment from being adhered and influenced by oil substances and solid particles, greatly reducing the deflagration rate of the environment-friendly equipment and ensuring that the waste gas is safely introduced into a combustion furnace for sufficient combustion.

The rotary cooling and recovering device for high-temperature combustible tar gas is mainly characterized in that tar waste gas passes through the device at a certain speed and passes through a cooler and a catcher which rotate in multiple stages, the waste gas is reduced to a certain temperature, a large amount of oil fume particles are formed, the oil fume particles are successfully caught by the catcher, and the oil fume particles are collected in an oil receiving groove and flow into an oil storage bin at the bottom under the condition of high-speed rotating centrifugal force.

In order to achieve the purpose, the invention is realized by the following technical scheme:

a rotary cooling and recycling device for high-temperature combustible tar gas comprises a rack, a motor arranged on the side part of the rack, a machine shell arranged at the top of the rack and a rotating shaft penetrating through the machine shell, wherein the machine shell comprises a middle machine shell, a lower machine shell and an upper machine shell, the lower machine shell comprises an air inlet formed in the side part and a lower through hole formed in the center of the bottom, and the upper machine shell comprises an air outlet formed in the side part and an upper through hole formed in the center of the top; the rotating shaft is provided with a lower through hole and an upper through hole in a penetrating manner and is fixedly connected with the lower shell and the upper shell through a lower sealer and an upper sealer respectively; the rotating shaft is in transmission connection with the motor;

one or more rotary coolers and one or more rotary catchers are arranged in the shell, and the rotary coolers and the rotary catchers are fixedly connected to the rotating shaft and rotate along with the rotating shaft; the rotary cooler comprises 1 or more heat conduction pipes fixedly inserted on the rotating shaft, and the heat conduction pipes are annularly arranged by taking the rotating shaft as a center; saturated media are arranged in the heat conduction pipes; the rotary catcher comprises 1 or more catching sheets fixedly sleeved on the rotating shaft, and the catching sheets are layered along the height direction of the rotating shaft; a plurality of hollowed-out strip holes are formed in the catching sheet and are arranged in an annular array along the radial direction of the rotating shaft; the oil catcher is characterized in that one or more annular spoilers are arranged on the inner wall of the middle shell, the spoilers correspond to the rotary catcher one by one and are arranged below the side of the rotary catcher, an upward bending structure is arranged on the periphery of each spoiler, an oil receiving groove is formed between each bending structure and the inner wall of the middle shell, and oil leakage holes are formed in the spoilers at the position of the oil receiving groove.

Further, the lower housing includes an oil outlet formed at the bottom thereof, the oil outlet is connected with an oil outlet pipe, and an oil drain valve is disposed on the oil outlet pipe.

Further, the saturated medium is pure alcohol in a vacuum state.

Preferably, the catching piece is disc-shaped and includes a first circular hole sleeved on the rotating shaft at the center.

As an optimized scheme on the structure of the invention, the rotary catcher is formed by stacking 2 catching sheets.

Further, the rotary cooler and the rotary catcher are arranged in an alternating interval mode.

Furthermore, the rack comprises a supporting plate at the top, a circular opening is formed in the center of the supporting plate, the shell is fixedly connected in the circular opening, and the lower shell is located below the supporting plate.

Preferably, the heat transfer pipe is a copper heat transfer pipe, and the catching piece is made of stainless steel.

Compared with the prior art, the invention has the following beneficial effects: the rotary cooling and recycling device has the characteristics of compact and reasonable structure, small volume, good use effect, high cooling and recycling efficiency, and specifically comprises the following components:

1. the temperature of cooling water in the rotating shaft and the cooling medium in the heat conduction pipe can be adjusted at any time according to the temperature of tar waste gas, the difference of components and the temperature requirement of the air outlet so as to match with the optimal cooling scheme, thereby achieving the purposes of highest cooling capture efficiency and lowest energy consumption, which cannot be compared with the traditional condensation recovery technology;

2. compared with a traditional fixed cooler, the rotating shaft, the cooler and the catcher which rotate at high speed cannot be influenced by the attachment of oil, and can condense and recover substances such as oil smoke, particles and the like in tar waste gas for a long time and efficiently, so that the maintenance and cleaning times are greatly reduced;

3. the reasonably arranged spoiler enables the waste gas to completely and uniformly pass through the cooler and the catcher, in the traditional condensation recovery technology, the speed of the waste gas passing through the cooler is not uniform, and part of the waste gas escapes without being effectively cooled, so that the catching efficiency is reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic perspective view of the present invention;

FIG. 4 is a schematic perspective view of a frame of the apparatus;

FIG. 5 is a schematic perspective view of a left housing half of the apparatus;

FIG. 6 is a schematic perspective view of a spoiler of the device;

FIG. 7 is a schematic perspective view of a lower housing of the apparatus;

FIG. 8 is a schematic perspective view of a lower housing of the apparatus;

FIG. 9 is a schematic perspective view of an upper housing of the apparatus;

FIG. 10 is an enlarged view of a portion of FIG. 2;

FIG. 11 is an enlarged view of a portion of FIG. 3;

FIG. 12 is a schematic top view of a capture sheet of the apparatus;

FIG. 13 is a partial enlarged view of the center position of the catching piece;

FIG. 14 is a schematic view of the structure of the connecting shaft in the device;

FIG. 15 is a perspective view of a ring support of the device;

FIG. 16 is a schematic perspective view of a rotary cooler in the apparatus;

labeled as:

1. a frame; 101. a support plate; 1011. a circular opening; 102. a support leg; 103. a reinforcing bar; 104. a gasket;

2. a housing; 201. a middle housing; 2011. a left half casing; 202. a lower housing; 2021. an air inlet; 2022. an air inlet pipe; 2023. an oil outlet; 2024. an oil outlet pipe; 2025. lower punching; 203. an upper housing; 2031. an air outlet; 2032. perforating; 2033. an air outlet pipe; 204. a spoiler; 2041. an oil leak hole; 2042. an oil receiving groove;

3. a motor; 301. a fixing plate; 302. a drive pulley;

4. a rotating shaft; 401. a lower sealer; 402. an upper sealer; 403. a driven pulley; 404. a connecting shaft; 405. a water discharge sealing joint; 4051. a water inlet; 406. an upper water seal joint; 4061. a water outlet; 407. a lower connecting flange; 408. an upper connecting flange; 4081. a jack;

5. a rotary cooler; 501. a heat conducting pipe; 502. a ring-shaped bracket; 5021. a circular connecting portion; 5022. a fixed part; 5023. a concave block; 5024. a second circular hole; 5025. a connecting strip; 5026. a second connection hole;

6. a rotating catcher; 601. a catching sheet; 602. a first circular hole; 603. a strip hole; 604. a first connection hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or circuit connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.

A rotary cooling and recycling device for high-temperature combustible tar gas is shown in figures 1-3, and the external main structure comprises: the motor comprises a frame 1, a motor 3 arranged on the side part of the frame 1 and a shell 2 arranged on the top of the frame 1.

1. Regarding the above-mentioned frame:

as shown in fig. 4, it includes a supporting plate 101 on the top and a plurality of supporting legs 102 vertically supporting on the ground, under the condition that the overall dimension of the main body of the rack 1 is not changed, the number of the supporting legs 102 can be increased or decreased according to the actual requirement in a modular manner, in the illustration, the number of the supporting legs 102 of the rack 1 is set to 4;

a reinforcing rod 103 is connected between the adjacent support legs 102, a gasket 104 is arranged at the bottom of each support leg 102, and the existence of the reinforcing rod 103 and the gasket 104 is used for providing the stability of the whole frame 1;

a circular opening 1011 is formed at the center of the support plate 101, and the housing 2 is disposed in the circular opening 1011.

2. With regard to the above-described motor:

the motor 3 is vertically and inversely installed between the two support legs 102 through the fixing plate 301, and the power output shaft of the motor 3 vertically points to the ground, specifically, the fixing plate 301 can be fixedly connected with the support legs 102 at two sides in a pin mode, and can also be connected in other modes such as welding and the like; similarly, the motor 3 can be fixed on the fixing plate 301 by the above-mentioned connection method.

3. With regard to the above-mentioned case:

the oil-gas separator comprises a cylindrical middle shell 201, a funnel-shaped lower shell 202 and an inverted funnel-shaped upper shell 203, and further, with reference to fig. 5 and 6, one or more annular spoilers 204 are horizontally arranged on the inner wall of the middle shell 201, the spoilers 204 are arranged in layers along the height of the middle shell 201, the periphery of the spoiler 204 is bent upwards, an oil receiving groove 2042 is formed between the spoiler 204 and the inner wall of the middle shell 201, and a plurality of oil leakage holes 2041 are formed in the spoiler 204 at the position of the oil receiving groove 2042;

in order to facilitate the fixed installation of the spoiler 204, the middle housing 201 is composed of a left housing half 2011 and a right housing half (not shown), or may be composed of an upper component and a lower component (not shown); when the left housing half 2011 and the right housing half are selected to be assembled, a punching bolt connection mode which is convenient to disassemble and assemble is preferably adopted;

as shown in fig. 7 and 8, the lower housing 202 includes an air inlet 2021 formed at a side portion, an oil outlet 2023 formed at a bottom section, and a lower through hole 2025, the air inlet 2021 is connected to an air inlet pipe 2022, the oil outlet 2023 is connected to an oil outlet pipe 2024, the oil outlet pipe 2024 is provided with an oil drain valve (not shown), the lower through hole 2025 is located at a center position of the bottom section, so as to facilitate the assembly and disassembly and improve the stability of the housing 2 on the rack 1, when assembling the lower housing 202, the middle housing 201, and the rack 1, a common connection manner of perforated bolts is preferably adopted, that is, a plurality of fastening bolts are provided to connect the bottom of the middle housing 201, the top of the lower housing 202, and the support plate 101 together, and after the assembling, the lower housing 202 is located below the support plate;

as shown in fig. 9, the upper housing 203 includes an air outlet 2031 formed at a side portion thereof and an upper through hole 2032 formed at a top cut surface thereof, the air outlet 2031 is connected to an air outlet pipe 2033, and the upper through hole 2032 is located at a center position of the top cut surface, and when the upper housing 203 and the middle housing 201 are assembled, a hole-punching bolt connection manner convenient for disassembly and assembly is preferably adopted.

4. About core parts inside the casing

The cooling recovery device of the present invention further includes a rotating shaft 4 penetrating the housing 2, wherein the rotating shaft 4 penetrates the lower through hole 2025 and the upper through hole 2032, and is fixedly connected to the lower housing 202 and the upper housing 203 by the additional lower sealer 401 and the additional upper sealer 402, respectively.

The rotating shaft 4 is in transmission connection with a power output shaft of the motor 3 to provide power for the rotating shaft 4, specifically, the transmission connection mode may be a belt wheel transmission mode or a chain wheel transmission mode, or other modes such as a gear transmission mode, and the belt wheel transmission mode adopted in the figure is that a driven belt pulley 403 is fixedly sleeved at the lower part of the rotating shaft 4, the driven belt pulley 403 is positioned right below the lower through hole 2025, a driving belt pulley 302 is sleeved at the power output end of the motor 3, and the driven belt pulley 403 is connected with the driving belt pulley 302 through a transmission belt (not shown).

As shown in fig. 10-11, one or more rotary coolers 5 and one or more rotary catcher 6 are disposed in the middle casing 201, and the rotary coolers 5 and the rotary catcher 6 are both fixedly mounted on the rotary shaft 4 and rotate together with the rotary shaft 4;

(4.1) with respect to the rotary cooler described above:

it includes 1 or more heat conduction pipes 501 horizontally fixed and inserted to the outside of the rotating shaft 4, the plurality of heat conduction pipes 501 are annularly arranged along the rotating shaft 4 as the center;

a saturated medium (not shown) in a vacuum state, such as pure alcohol in a vacuum state, or other substances, is input into the cavity in the heat conduction pipe 501 for cooling the exhaust gas;

preferably, the heat conduction pipe 501 is made of a material with good heat conduction performance, such as a copper heat conduction pipe;

(4.2) with respect to the above-described rotation catcher:

as shown in fig. 12 and 13, the device includes 1 or more catching sheets 601 horizontally fixed and sleeved on the rotating shaft 4, wherein the catching sheets 601 are layered along the height direction of the rotating shaft 4;

in the figure, the catching sheet 601 is preferably a disc shape, and other regular or irregular shapes may be adopted;

further, the catching piece 601 is formed by cutting stainless steel and comprises a first round hole 602 with the center penetrating through the rotating shaft 4, a plurality of hollowed-out strip holes 603 are formed in the catching piece 601, the strip holes 603 are arranged along the radial direction of the catching piece 601 in an annular array, and the strip holes 603 are used for catching oil in the waste gas;

in order to avoid the shaking of a single catching piece 601 under the condition of high-speed rotation and increase the catching effect, 2 catching pieces 601 are overlapped to form a catching piece 601 group which is fixedly sleeved on the rotating shaft 4, and the 2 catching pieces 601 can be detachably connected by a double-end stud or fixedly connected by other forms;

the middle casing 201 below the rotary catcher 6 is provided with the corresponding spoiler 204, and the catching pieces 601 cooperate with the spoiler 204 to catch and collect the oil in the exhaust gas.

(4.3) improvement on the above-mentioned rotating shaft:

referring to fig. 14, in order to facilitate the assembly and disassembly of the rotary cooler 5 and the rotary catcher 6 on the rotary shaft 4 and improve the cooling effect of the exhaust gas, the rotary shaft 4 is assembled by connecting a plurality of sections of connecting shafts 404 with hollow structures, the hollow structures are used for the circulation of cooling water, the rotary shaft 4 is equivalent to a cooling shaft, for this purpose, a lower water seal joint 405 is rotatably connected to the bottom end of the connecting shaft 404 at the bottom of the rotary shaft 4, the lower water seal joint 405 comprises a water inlet 4051 arranged at the side part, a water inlet pipe (not shown) is connected to the water inlet 4051, an upper water seal joint 406 is rotatably connected to the top end of the connecting shaft 404 at the top of the rotary shaft 4, the upper water seal joint 406 comprises a water outlet 40;

a lower connecting flange 407 is arranged at the top end of each connecting shaft 404 positioned at the bottom and in the middle of the rotating shaft 4, an upper connecting flange 408 is arranged at the bottom end of each connecting shaft 404 positioned at the top and in the middle of the rotating shaft 4, each connecting shaft 404 is formed by assembling the upper connecting flange 408, the lower connecting flange 407 and connecting bolts, and in order to improve the connection tightness between the connecting shafts 404, a sealing ring (not shown) is arranged between the upper connecting flange 408 and the lower connecting flange 407 to prevent cooling water from leaking;

for the installation of the rotary cooler 5, the insertion holes 4081 corresponding to the heat conduction pipes 501 one by one are penetrated through the side part of the upper connecting flange 408 in advance, and one end of the heat conduction pipe 501 passes through the insertion hole 4081 and is fixedly inserted on the connecting shaft 404;

the installation of the rotary catcher 6 is to first set the catching piece 601 or the catching piece 601 set between the upper connecting flange 408 and the lower connecting flange 407, then to lap the bottom of the catching piece 601 or the catching piece 601 set on the top of the upper connecting flange 408, and in addition, to annularly form a plurality of first connecting holes 604 near the outer diameter of the first round hole 602 of the catching piece 601, the connecting bolts are used to fixedly connect the catching piece 601 or the catching piece 601 set to the rotating shaft 4 by sequentially penetrating the first connecting holes 604, the upper connecting flange 408 and the lower connecting flange 407.

(4.4) improvement of the above heat transfer pipe:

referring to fig. 15 and 16, in order to avoid the heat pipe 501 from being shaken and deformed under the condition of high-speed rotation, which affects the cooling effect and the service life, a bracket for stabilizing the heat pipe 501 is further disposed on the top of the upper connecting flange 408, in order to achieve the above purpose, the bracket is a ring bracket 502 capable of commonly connecting a plurality of heat pipes 501, the ring bracket 502 includes a circular connecting portion 5021 located at the center, a fixing portion 5022 located at the periphery, and a concave block 5023 corresponding to the heat pipe 501 and located below the fixing portion 5022, the circular connecting portion 5021 includes a second circular hole 5024 with the center passing through the rotating shaft 4, and a plurality of radial and ring-shaped connecting strips 5025 are disposed between the fixing portion 5022 and the circular connecting portion 5021;

preferably, the concave cavity of the concave block 5023 is a circular arc curved surface, and is in matched and overlapped joint with the shape of the pipe body of the heat conduction pipe 501;

when the heat conducting pipe 501 is stabilized by the annular bracket 502, the fixing part 5022 is fixedly connected with two sides of the top of the concave block 5023 through the punching screws, and the heat conducting pipe 501 is positioned between the fixing part 5022 and the concave block 5023;

for the installation of the ring-shaped bracket 502, the ring-shaped bracket 502 is firstly sleeved between the upper connecting flange 408 and the lower connecting flange 407, then the bottom of the circular connecting portion 5021 is lapped on the top of the upper connecting flange 408, in addition, a plurality of second connecting holes 5026 are annularly arranged near the outer diameter of the second round hole 5024 of the circular connecting portion 5021, and the connecting bolts are used for fixedly connecting the ring-shaped bracket 502 to the rotating shaft 4 by sequentially penetrating the second connecting holes 5026, the upper connecting flange 408 and the lower connecting flange 407.

(4.5) improvements relating to the above-mentioned upper attachment flange:

as shown in fig. 10, the outer diameter of the upper connecting flange 408 is slightly larger than the outer diameter of the lower connecting flange 407, so as to increase the contact area between the top of the upper connecting flange 408 and the catching piece 601 or the circular connecting portion 5021 of the ring-shaped bracket 502, improve the supporting effect, and reduce the problem of shaking during high-speed rotation.

5. Arrangement in connection with rotary cooler and rotary catcher

The arrangement of the rotary cooler 5 and the rotary catcher 6 on the rotary shaft 4 is not particularly limited, the number of the rotary coolers 5 and the number of the rotary catchers 6 can be increased or decreased in an modularized manner according to actual requirements, and the rotary coolers 5 and the rotary catchers 6 can be alternately arranged at intervals or in other manners;

fig. 10 or 11 show a preferred arrangement of the invention:

two adjacent rotary coolers 5 are arranged at the lower part of a rotary shaft 4 for reducing the temperature of the exhaust gas quickly; subsequently, the spin catcher 6 and the spin cooler 5 are arranged at intervals in the height direction of the rotating shaft 4.

The working principle of the rotary cooling and recovering device is as follows:

(1) the oil smoke waste gas enters the shell 2 through the air inlet 2021, the flow speed of the waste gas is well controlled, and the flow speed is less than or equal to 20cm/s in practical application;

(2) the waste gas is primarily cooled through a 2-stage rotary cooler 5, captured through a 1-stage rotary catcher 6, cooled and captured to easily condense large particles;

(3) then the exhaust gas is further cooled, cooled and captured by the multi-stage rotary cooler 5 and the rotary catcher 6, so that the temperature of the exhaust gas is reduced to a proper condition, preferably below 20 ℃, large particulate matters are completely captured and recovered in the process, and the exhaust gas finally enters the air outlet pipe 2033 through the air outlet 2031;

(4) oil, particles and the like captured by the rotary catcher 6 are thrown into the oil receiving groove 2042 through the strip holes 603 on the capturing sheet 601 under the action of centrifugal force, the oil, particles and the like enter the lower shell 202 (equivalent to an oil storage bin) through the oil leakage hole 2041 under the action of gravity, and the oil drain valve is opened periodically to recover oil stains;

(5) in order to improve the cooling effect, the flow direction of the cooling water in the rotating shaft 4 is opposite to the flow direction of the waste gas, namely the cooling water flows from top to bottom, and the waste gas flows from bottom to top;

(6) the spoiler 204 can store captured oil and can guide the captured oil and gas to the lower casing 202, and can guide the gas flow to return and fully pass through the rotary catcher 6, so that the purpose of fully capturing oil and gas particles in the waste gas can be achieved, and the oil and smoke waste gas is prevented from escaping from a gap between the rotary catcher 6 and the casing 2.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.