阅读说明：本技术 一种多重防结垢型粉体流冷却器 (Multiple anti-scaling powder flow cooler ) 是由 张琳 房加美 胡一旸 余志康 计益翔 钱红卫 柳林 许伟刚 卜诗 赵睿 于 2021-05-10 设计创作，主要内容包括：本发明提供了一种多重防结垢型粉体流冷却器,包括从下至上依次连接的下箱体、中箱体和上箱体；上箱体的上盖下端面对应进料阀位置固定有过滤器,上盖上还开有排气孔,该排气孔连接有布袋除尘器；中板外周固定有进水管和出水管,进水管、出水管与换热板之间通过软管连接,中箱体上还分别设有上进气管和下进气管,下箱体上对称设有气动振动器。本发明结构设计合理,通过过滤器的设计可有效个为冷却板组提供预过滤,避免对流道造成阻塞,保证设备稳定运行,同时通过平面换热片的设计和合理布局的气流设备,保持了设备内部的微负压,在干燥空气的同时将冷却器内水分和粉尘带出,防止湿气聚集而使物料结块,有效提升换热性能。(The invention provides a multiple anti-scaling powder flow cooler, which comprises a lower box body, a middle box body and an upper box body which are sequentially connected from bottom to top; the lower end face of the upper cover of the upper box body is fixedly provided with a filter corresponding to the position of the feeding valve, the upper cover is also provided with an exhaust hole, and the exhaust hole is connected with a bag-type dust collector; the middle plate periphery is fixed with inlet tube and outlet pipe, passes through the hose connection between inlet tube, outlet pipe and the heat transfer board, still is equipped with last intake pipe and lower intake pipe on the well box respectively, and the symmetry is equipped with pneumatic vibrator on the lower box. The invention has reasonable structural design, can effectively provide pre-filtration for the cooling plate group through the design of the filter, avoids blocking a flow channel, ensures the stable operation of equipment, simultaneously keeps the micro negative pressure in the equipment through the design of the plane heat exchange plate and the airflow equipment with reasonable layout, takes out moisture and dust in the cooler while drying air, prevents moisture from gathering to cause material agglomeration, and effectively improves the heat exchange performance.)

1. The utility model provides a multiple anti-scaling type powder flows cooler, includes lower box, well box and the last box that connects gradually from supreme down, lower box include underframe (11) and enclose and close hypoplastron (12) of fixing on underframe (11), well box then with last box sharing go up frame (7), the lower extreme and underframe (11) of going up frame (7) are connected and are around being equipped with medium plate (9), the box that medium plate (9) enclose is well box, go up frame (7) and correspond medium plate (9) top position and then around being equipped with upper plate (6), the box that upper plate (6) enclose is last box, last box top upper cover (2) have, be equipped with feed valve (3) on upper cover (2), its characterized in that: a filter (5) is fixed at the position of the lower end surface of the upper cover (2) of the upper box body, which corresponds to the feed valve (3), an exhaust hole (1) is also formed in the upper cover (2), and the exhaust hole (1) is connected with a bag-type dust collector;

a plurality of heat exchange plates (17) are arranged in the middle box body at intervals, the heat exchange plates (17) are plane heat exchange sheets, a water inlet pipe (16) is fixed on the periphery of the bottom of the middle plate (9), the water inlet pipe (16) is connected with the bottom of each heat exchange plate (17) through a hose, a water outlet pipe (19) is fixed on the periphery of the top of the middle plate (9), and the water outlet pipe (19) is also connected with the top of each heat exchange plate (17) through a hose; an upper air inlet pipe (18) for blowing air into the middle box body is fixed at the position, corresponding to the upper part of the heat exchange plate (17), of the top of the middle box body, and a lower air inlet pipe (15) for blowing air into the middle box body is fixed at the position, corresponding to the lower part of the heat exchange plate (17), of the bottom of the middle box body;

the bottom of the lower box body is provided with a discharge hole, and the lower plates (12) of the lower box body corresponding to two sides of the discharge hole are respectively and symmetrically provided with pneumatic vibrators (13).

2. The multiple anti-fouling powder flow cooler of claim 1, wherein: the filter (5) is a filter grid structure formed by combining a plurality of layers of grid plates (10), and the hollow space of each layer of grid plate (10) is smaller than the space between adjacent heat exchange plates (17).

3. The multiple anti-fouling powder flow cooler of claim 1, wherein: go up air intake pipe (18) and let in and divide after the well box and be equipped with 2n gas blow pipe (20), lower air intake pipe (15) let in then divide after the well box and be equipped with n gas blow pipe (20), and the axis of gas blow pipe (20) that upper air intake pipe (18) corresponds and gas blow pipe (20) that the intake pipe corresponds is parallel arrangement.

4. The multiple anti-fouling powder flow cooler of claim 1, wherein: a spring ring (21) is additionally arranged at the hose connecting position of the water inlet pipe (16) and each heat exchange plate (17); a spring ring (21) is also arranged at the hose connecting position of the water outlet pipe (19) and each heat exchange plate (17).

5. The multiple anti-fouling powder flow cooler of claim 1, wherein: an access door (8) is further arranged on the middle plate (9), and a manhole (4) is arranged on the upper cover (2).

Technical Field

The invention relates to the technical field of powder flow coolers, in particular to a multiple anti-scaling powder flow cooler.

Background

A powder flow heat exchanger is a device for cooling, heating or drying powder materials, and can replace the traditional fluidized bed cooler and roller cooler. The powder flow cooler can realize the cooling treatment of the powder, the feed valve is opened, the powder is slowly accumulated at the bottom of the cooler until the powder reaches the feed bin of the cooler, and the touch material level meter of the feed bin can control the opening degree of the discharge valve of the feeder according to the current material level, so that the material level is maintained at a normal working position. And opening a water inlet valve and a water outlet valve of the powder flow cooler, cooling the materials between the heat exchange plates in a heat transfer mode when cooling water flows through a channel in the heat exchange plates, enabling the cooling water to flow in the heat exchange plates, transferring heat of particles through the wall surfaces of the heat exchange plates, and removing the heat by the cooling water to achieve a cooling effect. The powder flows from top to bottom between the heat exchange plate groups for a period of time and then enters the blanking device, and finally flows out of the powder flow cooler through a discharge valve of the blanking device to complete the whole cooling process. But substances such as caking powder, impurities and the like enter the cooler to block a flow channel, reduce the heat exchange performance and influence the operation of equipment.

The powder particles are generally in a high-temperature state before entering the powder flow cooler, and the agglomeration size can reach 10-30mm after the powder particles are agglomerated. The formation of these blocks reduces the efficiency of the cooler and tends to cause fluid blockage between the plates entering the cooler, resulting in a reduction in cooling performance, making the cooler unable to function properly and requiring frequent shut-down cleaning.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the invention provides the multiple anti-scaling powder flow cooler which can effectively filter caking and foreign matters, avoid blocking a flow passage, simultaneously improve the flowability and the integrity of particles of powder, further reduce scaling, improve the heat exchange performance and uniformly discharge materials.

The technical scheme adopted by the invention for solving the technical problems is as follows: a multiple anti-scaling powder flow cooler comprises a lower box body, a middle box body and an upper box body which are sequentially connected from bottom to top, wherein the lower box body comprises a lower frame and a lower plate which is fixed on the lower frame in a surrounding manner, the middle box body and the upper box body share the upper frame, the lower end of the upper frame is connected with the lower frame and is provided with a middle plate in a surrounding manner, the box body surrounded by the middle plate is the middle box body, the upper frame is provided with an upper plate in a surrounding manner corresponding to the position above the middle plate, the box body surrounded by the upper plate is the upper box body, the top of the upper box body is provided with an upper cover, the upper cover is provided with a feed valve, the lower end of the upper cover of the upper box body is fixed with a filter corresponding to the position of a feed valve, the upper cover is also provided with an exhaust hole, and the exhaust hole is connected with a bag-type dust remover; a plurality of heat exchange plates are arranged in the middle box body at intervals, the heat exchange plates are plane heat exchange sheets, a water inlet pipe is fixed on the periphery of the bottom of the middle plate, the water inlet pipe is connected with the bottom of each heat exchange plate through a hose, a water outlet pipe is fixed on the periphery of the top of the middle plate, and the water outlet pipe is also connected with the top of each heat exchange plate through a hose; an upper air inlet pipe for blowing air into the middle box body is fixed at the position, corresponding to the upper part of the heat exchange plate, of the top of the middle box body, and a lower air inlet pipe for blowing air into the middle box body is fixed at the position, corresponding to the lower part of the heat exchange plate, of the bottom of the middle box body; the bottom of the lower box body is provided with a discharge hole, and the lower plates of the lower box body corresponding to two sides of the discharge hole are respectively and symmetrically provided with pneumatic vibrators.

Furthermore, the filter is a filter grid structure formed by combining a plurality of layers of grid plates, and the hollow space of each layer of grid plate is smaller than the space between adjacent heat exchange plates.

Preferably, in order to keep micro negative pressure in the equipment, the branch pipelines of the upper air inlet pipe and the lower air inlet pipe can be further specifically designed, 2n air blowing pipes are arranged after the upper air inlet pipe is introduced into the middle box body, n air blowing pipes are arranged after the lower air inlet pipe is introduced into the middle box body, and the air blowing pipes corresponding to the upper air inlet pipe and the air blowing pipes corresponding to the air inlet pipe are arranged in parallel.

Preferably, in order to further eliminate the vibration and stress loaded on the equipment, a spring ring is additionally arranged at the position of the connection position of the water inlet pipe and the hose of each heat exchange plate; and a spring ring is also additionally arranged at the connection position of the water outlet pipe and the hose of each heat exchange plate. The design of spring ring can effectively avoid interface leakage infiltration equipment in or draw the heat transfer board of splitting.

Further, for the convenience of cleaning up the filter, the medium plate on still open and to have the access door, then open on the upper cover and have the manhole, can carry out clean operation to the filter after opening the access door, the manhole is then convenient for in time clean the filter.

The multiple anti-scaling powder flow cooler has the advantages that the structural design is reasonable, the pre-filtering can be effectively provided for the cooling plate group through the design of the filter, the blocking of a flow channel is avoided, the stable operation of equipment is ensured, meanwhile, the micro negative pressure in the equipment is kept through the design of the plane heat exchange plate and the air flow equipment with reasonable layout, the moisture and dust in the cooler are brought out while air is dried, the material agglomeration caused by moisture accumulation is prevented, and the heat exchange performance is effectively improved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic structural diagram of the preferred embodiment of the present invention.

Figure 2 is a cross-sectional view of the preferred embodiment of the present invention.

Fig. 3 is a schematic view of the structure of the hose connection position in the preferred embodiment of the present invention.

In the figure, the device comprises a vent hole 1, an upper cover 3, a feed valve 4, a manhole 5, a filter 6, an upper plate 7, an upper frame 8, an access door 9, a middle plate 10, a grid plate 11, a lower frame 12, a lower plate 13, a pneumatic vibrator 14, a motor 15, a lower air inlet pipe 16, an inlet pipe 17, a heat exchange plate 18, an upper air inlet pipe 19, an outlet pipe 20, an air blowing pipe 21 and a spring ring.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

The invention discloses a multiple anti-scaling powder flow cooler as shown in fig. 1 and fig. 2, which is a preferred embodiment of the invention. The multiple anti-scaling powder flow cooler comprises a lower box body, a middle box body and an upper box body which are sequentially connected from bottom to top. The lower box body comprises a lower frame 11 and a lower plate 12 which is fixed on the lower frame 11 in a surrounding mode, the middle box body and the upper box body share the upper frame 7, the lower end of the upper frame 7 is connected with the lower frame 11 and is provided with a middle plate 9 in a surrounding mode, the box body formed by the middle plate 9 in a surrounding mode is the middle box body, the upper plate 6 is arranged in the position, corresponding to the upper portion of the middle plate 9, of the upper frame 7 in a surrounding mode, the box body formed by the upper plate 6 in a surrounding mode is the upper box body, the top of the upper box body is provided with an upper cover 2, and the upper cover 2 is provided with a feeding valve 3. Considering the maintenance clearance demand in the cooler, still opened access door 8 on the medium plate 9, then opened manhole 4 on the upper cover 2, can carry out cleaning operation to filter 5 after opening access door 8, manhole 4 then is convenient for in time clean filter 5 below.

In order to filter the powder entering the cooler, a filter 5 is fixed on the lower end face of the upper cover 2 of the upper box body corresponding to the position of the feed valve 3. The filter 5 is a filter grid structure formed by combining a plurality of layers of grid plates 10, and the hollow space of each layer of grid plate 10 is smaller than the space between adjacent heat exchange plates 17.

A plurality of heat exchange plates 17 are arranged at intervals in the middle box body, and the heat exchange plates 17 are plane heat exchange sheets. Improve traditional unsmooth type heat exchanger plate 17 pieces into plane heat exchanger fin to improve the mobility of powder and the integrality of granule, further prevent the scale deposit that the granule breakage and the pulverization caused.

A water inlet pipe 16 is fixed on the periphery of the bottom of the middle plate 9, the water inlet pipe 16 is connected with the bottom of each heat exchange plate 17 through a hose, a water outlet pipe 19 is fixed on the periphery of the top of the middle plate 9, and the water outlet pipe 19 is also connected with the top of each heat exchange plate 17 through a hose. On the basis of the design of the hose connection, in order to further eliminate the vibration and stress applied to the equipment, as shown in fig. 3, a spring ring 21 is added at the hose connection position of the water inlet pipe 16 and each heat exchange plate 17. A spring ring 21 is also added at the hose connecting position of the water outlet pipe 19 and each heat exchange plate 17. The design of the spring ring 21 can effectively prevent the interface from leaking water and seeping into the equipment or pulling and cracking the heat exchange plate 17.

An upper air inlet pipe 18 for blowing air into the middle box body is fixed at the top of the middle box body corresponding to the position above the heat exchange plate 17, and a lower air inlet pipe 15 for blowing air into the middle box body is fixed at the bottom of the middle box body corresponding to the position below the heat exchange plate 17. Go up the branch pipeline of air inlet pipe 18 and lower intake pipe 15 and can carry out further concrete design, branch is equipped with 4 gas blow pipes 20 after going up air inlet pipe 18 lets in the well box promptly, then divides after lower intake pipe 15 lets in the well box to be equipped with 2 gas blow pipes 20, and the axis of the gas blow pipe 20 that goes up air inlet pipe 18 corresponds and the intake pipe corresponds is parallel arrangement. Corresponding to the arrangement of the upper air inlet pipe 18 and the lower air inlet pipe 15, the upper cover 2 is also provided with an exhaust hole 1, and the exhaust hole 1 is connected with a bag-type dust remover. Due to the air inlet and outlet design, micro negative pressure is always kept in the equipment, and the dry air can timely bring the moisture and dust in the cooler out of the equipment. Blow and make the material avoid the compaction at piling up the in-process through the ascending flow of gas, keep the loose state of material, contain a small amount of dust in the material that will get into in the feeding storehouse and pass through gas flow and take away, carry out equipment through humid air or material steam that dry air carried the material, prevent that the accumulation of moisture from making the material caking or the normal operating of adhesion at equipment and 17 piece surface influence equipment of heat exchanger plate, promote heat transfer performance.

The bottom of the lower box body is provided with a discharge hole, and the lower plates 12 of the lower box body corresponding to the two sides of the discharge hole are respectively and symmetrically provided with pneumatic vibrators 13. A motor 14 for driving the pneumatic vibrator 13 is fixed on the lower plate 12. The pneumatic vibrator 13 of both sides design can effectively improve vibration amplitude and vibration source distribution, and the vibration through pneumatic vibrator 13 drives the vibration of powder flow cooler wall for the material flows in the region that is difficult for flowing, keeps the unblocked of runner, avoids forming dead zone or caking because of the inhomogeneity of particle size, shape and weight makes at glassware cone position down, guarantees the homogeneity and the stability of ejection of compact.

The multiple anti-scaling powder flow cooler is reasonable in structural design, multiple processes such as filtering, blowing, pneumatic vibration and flexible connection are performed according to the powder cooling characteristic, the problem of scaling blockage is solved, and the heat exchange performance is remarkably improved.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.