Phosphate preparation tail gas treatment device

Abstract

The utility model discloses a phosphate preparation tail gas treatment device which comprises a dust filtering device and a tail gas treatment device, the dust filtering device comprises a filtering device shell, a plurality of partition plates are integrally formed in the filtering device shell, and a conveying channel is formed in the filtering device shell by the partition plates. Intercepting plates are fixedly connected between the side walls of the partition plates, and a plurality of through holes are formed in the intercepting plates; the tail gas treatment device comprises a treatment device body, absorption liquid is arranged in the treatment device body, and the absorption liquid is used for treating harmful substances in tail gas. Dust particles in tail gas are intercepted through the dust filtering device, harmful substances in the tail gas are treated through the tail gas treatment device, the tail gas generated during phosphate preparation is treated and then discharged, meanwhile, the filtering device and the treatment device are low in manufacturing cost and use cost, and the tail gas treatment device is suitable for large-scale popularization and application. And the practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to phosphate tail gas technical field, concretely relates to a phosphate preparation tail gas treatment device. BACKGROUND

[0002] Phosphate is one of the natural ingredients of almost all food, as an important food ingredient and functional additive is widely used in food processing, it is the salt of phosphoric acid, is very important in inorganic chemistry, biochemistry and biogeochemistry.

[0003] Phosphate in preparation, tail gas, tail gas contains dust and other harmful substances, therefore, tail gas emission needs to be handled after the dust and other harmful substances in the tail gas, therefore, need to provide a kind of tail gas treatment device generated in the preparation of phosphate.

[0004] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the background of the present utility model and should not be construed as acknowledging that such information forms prior art that is already known to those skilled in the art. SUMMARY

[0005] The utility model aims at providing a kind of phosphate preparation tail gas treatment device, it can be handled to the tail gas generated in the preparation of phosphate.

[0006] In order to achieve the above-mentioned purpose, the technical scheme provided by the utility model in one embodiment is as follows:

[0007] A kind of phosphate preparation tail gas treatment device, comprising:

[0008] Dust filtering device, including filter device shell, since phosphate preparation, tail gas contains a large amount of dust particles, the dust particles in the tail gas are handled by filter device shell. The filter device shell is integrally formed with a plurality of partition plates, and a plurality of partition plates form a conveying channel in the filter device shell, so that the tail gas entering the filter device shell flows through the conveying channel to treat the dust particles in the tail gas. The side walls of the plurality of partition plates are fixedly connected with intercepting plates, and a plurality of through holes are formed in the intercepting plates. When the tail gas flows in the conveying channel, it will be intercepted by the intercepting plate, and the tail gas will pass through the intercepting plate through the through hole, so that the tail gas will continuously collide with the intercepting plate when flowing in the conveying channel, so that the dust particles are separated from the tail gas by the method of inertia force, and the treatment of dust particles in the tail gas is realized.

[0009] The tail gas treatment device comprises a treatment device body, harmful substances such as acid mist are contained in tail gas during the preparation of phosphate, and therefore the harmful substances in the tail gas are treated through the treatment device body. An absorption liquid is arranged in the treatment device body, and the absorption liquid is used for treating the harmful substances in the tail gas. A conveying pipe is arranged between the gas outlet of the filter device shell and the gas inlet of the treatment device body, so that the dust and other particulate matters in the tail gas are treated through the filter device shell, and then the tail gas enters the treatment device body, and the harmful substances in the tail gas are treated through the absorption liquid in the treatment device body. The gas outlet of the filter device shell is arranged on the upper end wall plate of the filter device shell, so that the tail gas is discharged from the filter device shell through the upper end of the filter device shell.

[0010] In one or more embodiments of the present application, the shape of the conveying channel is arc-shaped, and the arc-shaped conveying channel is formed by a plurality of U-shaped structures. When the tail gas enters the conveying channel, it can flow up and down in a staggered manner. Meanwhile, the tail gas will continuously change direction when flowing, so that the dust particles in the tail gas can be separated and treated under the action of inertial force and gravity, thereby improving the dust particle treatment capacity.

[0011] In one or more embodiments of the present application, a pair of intercepting plates are fixedly connected between the adjacent side walls of the partition plate. The through holes in the pair of intercepting plates are arranged in a staggered manner. A pair of intercepting plates are arranged between adjacent partition plates. The through holes in the pair of intercepting plates are arranged in a staggered manner. When the tail gas passes through the intercepting plates, it will change its flow direction through the through holes, so as to increase the probability of collision between the tail gas and the intercepting plates, thereby improving the treatment effect of the tail gas.

[0012] In one or more embodiments of the present application, a plurality of discharge ports are formed in the bottom of the filter device shell, and the plurality of discharge ports are in communication with the conveying channel. The dust particles treated by the inertial force and gravity in the conveying channel can be discharged from the filter device shell through the discharge ports.

[0013] In one or more embodiments of the present application, a hopper is arranged on the lower side of the filter device shell. The dust particles treated by the filter device shell are stored in the hopper for unified treatment. A plurality of feeding ports are formed in the side wall and the top of the hopper. The dust particles are introduced into the hopper through the feeding ports.

[0014] In one or more embodiments of the present application, a plurality of chutes are fixedly connected between the plurality of discharge ports and the plurality of feeding ports. The dust particles discharged from the filter device shell are conveyed to the hopper through the chutes. An air inlet pipe is arranged on the air inlet of the filter device shell. The air inlet of the filter device shell is arranged on the lower side of the side wall, so that the tail gas flows into the filter device shell from the lower side.

[0015] In one or more embodiments of the utility model, the bottom of ash bucket is provided with discharge port, dust particle in ash bucket is discharged through discharge port, discharge valve is installed on discharge port, and discharge valve is used for controlling on-off of discharge port.

[0016] In one or more embodiments of the utility model, the absorption liquid is water solution, and an absorbent is added to the water solution, harmful substances in the tail gas entering the processing device body can be filtered through the action of the absorbent and the water solution, and the absorption liquid can intercept clean dust particles that are not treated in the tail gas, so that the discharged tail gas is clean.The absorbent is a solvent that has no pollution and has the ability to treat harmful substances in the phosphate tail gas.

[0017] In one or more embodiments of the utility model, an observation window is arranged on the front side wall of the processing device body, the absorption liquid can be observed through the observation window, so that the absorption liquid can be replaced in time when the absorption liquid contains more pollutants, so as to ensure the treatment effect of the absorption liquid on the tail gas.A liquid inlet is installed on the upper end of the processing device body, the absorption liquid can be supplemented into the processing device body through the liquid inlet, and a liquid inlet cover is connected to the liquid inlet.

[0018] In one or more embodiments of the utility model, a pollution discharge port is arranged on the lower side of the rear side wall of the processing device body, the absorption liquid in the processing device body can be discharged through the pollution discharge port, so that the absorption liquid can be replaced conveniently, and a pollution discharge cover is connected to the pollution discharge port.A discharge pipe is installed on the gas outlet of the processing device body, and the opening end of the discharge pipe is arranged downward, so that the treated tail gas is discharged through the discharge pipe and foreign matters in the outside are prevented from entering.

[0019] Compared with the prior art, the dust filtering device is arranged to intercept and treat dust particles in the tail gas, the tail gas treatment device is arranged to treat harmful substances in the tail gas, the tail gas generated during the preparation of phosphate is treated and discharged, the filtering device and the treatment device have low cost and low use cost, and have good practicability. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments in the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is an front view of a phosphate preparation tail gas treatment device in an embodiment of the utility model.

[0022] Figure 2 It is a perspective view of a phosphate preparation tail gas treatment device in an embodiment of the utility model;

[0023] Figure 3 It is a sectional view of a phosphate preparation tail gas treatment device in an embodiment of the utility model;

[0024] Figure 4 It is a sectional view of a phosphate preparation tail gas treatment device in an embodiment of the utility model;

[0025] Figure 5 It is a perspective view of a phosphate preparation tail gas treatment device in an embodiment of the utility model; Figure 3 It is an enlarged view of A in the middle.

[0026] Main figure mark explanation:

[0027] 1-dust filter device, 11-filter device shell, 12-separation plate, 13-conveying channel, 14-intercepting plate, 15-through hole, 16-discharge port, 17-ash bucket, 18-feeding port, 19-spout, 110-discharge port, 111-discharge valve, 112-gas inlet pipe, 2-tail gas treatment device, 21-treatment device body, 22-absorption liquid, 23-observation window, 24-liquid inlet, 25-liquid inlet cover, 26-discharge port, 27-conveying pipe, 28-exhaust pipe. Specific implementation

[0028] In order to make the personnel in the technical field better understand the technical scheme in the utility model, the technical scheme in the embodiment of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiment of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the utility model.

[0029] As Figures 1-4 Indicated, a phosphate preparation tail gas treatment device in an embodiment of the utility model, including dust filter device 1 and tail gas treatment device 2.

[0030] As Figures 1-4As shown, the dust filter device 1 includes a filter housing 11. Since the exhaust gas contains a large amount of dust particles during the preparation of phosphate, the dust particles in the exhaust gas are processed by the filter housing 11. A plurality of partition plates 12 are integrally formed in the filter housing 11. The plurality of partition plates 12 form a conveying channel 13 in the filter housing 11, so that the exhaust gas entering the filter housing 11 flows through the conveying channel 13, so that the dust particles in the exhaust gas are processed as the exhaust gas flows in the conveying channel 13. Interceptor plates 14 are fixedly connected between the side walls of the plurality of partition plates 12. The interceptor plates 14 are provided with a plurality of through holes 15. When the exhaust gas flows in the conveying channel 13, it will be intercepted by the interceptor plates 14. The exhaust gas will pass through the interceptor plates 14 through the through holes 15, so that the exhaust gas will continuously collide with the interceptor plates 14 when flowing in the conveying channel 13. Therefore, the dust particles are separated from the exhaust gas under the action of the collision by the inertial force, thereby processing the dust particles in the exhaust gas.

[0031] like Figure 4 As shown, the shape of the conveying channel 13 is set to be an arc, and the arc of the conveying channel 13 is composed of multiple U-shapes, so that the exhaust gas can flow up and down in an alternating manner after entering the conveying channel 13. At the same time, the exhaust gas will keep turning when flowing, so that the exhaust gas will be separated from the dust particles in the exhaust gas under the action of inertia and gravity when flowing in the conveying channel 13, thereby improving the ability to handle dust particles.

[0032] like Figure 4 and Figure 5 As shown, a pair of intercepting plates 14 are fixedly connected between adjacent side walls of the partition plate 12, and the through holes 15 on the pair of intercepting plates 14 are arranged in a staggered manner. A pair of intercepting plates 14 are arranged between adjacent partition plates 12. The through holes 15 on the pair of intercepting plates 14 are staggered, so that when the exhaust gas passes through the intercepting plate 14, its flow direction will be changed through the through holes 15, so as to increase the probability of the exhaust gas colliding with the intercepting plate 14, thereby improving the effect of exhaust gas treatment.

[0033] like Figure 4 As shown, a plurality of discharge ports 16 are provided at the bottom of the filter device housing 11, and the plurality of discharge ports 16 are all connected to the conveying channel 13, so that the dust particles processed by the inertial force and gravity in the conveying channel 13 will be discharged from the filter device housing 11 through the discharge ports 16.

[0034] like Figures 1-4 As shown, an ash hopper 17 is provided on the lower side of the filter housing 11. The dust particles processed by the filter housing 11 are stored in the ash hopper 17 for unified treatment. A plurality of feed ports 18 are provided on the sidewall and top of the ash hopper 17, through which the dust particles are introduced into the ash hopper 17.

[0035] As Figures 1-4 shown, the plurality of discharge ports 16 are fixedly connected with the plurality of inlet ports 18 respectively through the chute pipes 19, so that the dust particles discharged from the filter device shell 11 are transported into the dust hopper 17 through the chute pipes 19. The air inlet pipe 112 is installed on the air inlet of the filter device shell 11, and the air inlet of the filter device shell 11 is arranged on the lower side of the side wall, so that the tail gas flows into the filter device shell 11 from the lower side to the upper side.

[0036] As Figures 1-4 shown, the bottom of the dust hopper 17 is provided with a discharge port 110, and the dust particles in the dust hopper 17 are discharged through the discharge port 110. The discharge valve 111 is installed on the discharge port 110, and the discharge valve 111 is used to control the opening and closing of the discharge port 110.

[0037] Preferably, in order to improve the effect of the filter device shell 11 on the treatment of dust particles in the tail gas, the flow rate of the tail gas flowing in the filter device shell 11 should not be too fast, and the tail gas can flow normally.

[0038] As Figures 1-4 shown, the tail gas treatment device 2 comprises a treatment device body 21. Since the tail gas contains harmful substances such as acid mist during the preparation of phosphate, the treatment device body 21 is arranged to treat the harmful substances in the tail gas. The treatment device body 21 is provided with an absorption liquid 22 for treating the harmful substances in the tail gas. The conveying pipe 27 is installed between the air outlet of the filter device shell 11 and the air inlet of the treatment device body 21, so that after the dust particles in the tail gas are treated by the filter device shell 11, the tail gas enters the treatment device body 21, and the harmful substances in the tail gas are treated by the absorption liquid 22 in the treatment device body 21. The air outlet of the filter device shell 11 is arranged on the upper end wall plate of the filter device shell 11, so that the tail gas is discharged from the filter device shell 11 through the upper end of the filter device shell 11.

[0039] Preferably, the absorption liquid 22 is a water solution, and an absorbent is added to the water solution. Through the action of the absorbent and the water solution, the harmful substances in the tail gas entering the treatment device body 21 can be absorbed, and the clean dust particles in the tail gas that are not treated are intercepted by the absorption liquid 22, so that the discharged tail gas is clean. The absorbent is a solvent that has no pollution and has the ability to treat harmful substances in the tail gas of phosphate.

[0040] As Figure 1 and Figure 2As shown, the front side wall of the processing device body 21 is provided with an observation window 23, through which the absorption liquid 22 can be observed, so that the absorption liquid 22 can be replaced in time when the pollutants in the absorption liquid 22 are more, so as to ensure the treatment effect of the absorption liquid 22 on the tail gas. The upper end of the processing device body 21 is provided with a liquid inlet 24, through which the absorption liquid 22 can be supplemented into the processing device body 21, and the liquid inlet 24 is covered with a liquid inlet cover 25.

[0041] As shown in Figure 3 and Figure 4 As shown, the lower side of the rear side wall of the processing device body 21 is provided with a pollution discharge port 26, through which the absorption liquid 22 in the processing device body 21 can be discharged, thereby facilitating the replacement of the absorption liquid 22, and the pollution discharge port 26 is covered with a pollution discharge cover. The gas outlet of the processing device body 21 is provided with an exhaust pipe 28, and the opening end of the exhaust pipe 28 is arranged downward, so that the treated tail gas is discharged through the exhaust pipe 28 and the impurities and the like from the outside are avoided from entering.

[0042] In use, the tail gas generated during the preparation of phosphate is transported into the filter device shell 11 through the gas inlet pipe 112, and the tail gas flows in the conveying channel 13. When the tail gas flows, it collides with the intercepting plate 14, so that the tail gas passes through the through hole 15 and passes through the intercepting plate 14. At the same time, the tail gas flows in the conveying channel 13 in an up-and-down staggered manner. Under the action of gravity and inertial force, the dust particles and the tail gas are separated, so as to realize the treatment of the dust particles in the tail gas; after the tail gas is discharged from the filter device shell 11, it is transported into the processing device body 21 through the conveying pipe 27. In the processing device body 21, the tail gas contacts with the absorption liquid 22, and the harmful substances in the tail gas can be treated through the absorption liquid 22. Finally, the tail gas is discharged through the exhaust pipe 28.

[0043] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0044] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A phosphate production tail gas treatment device, characterized in that: include: A dust filter device includes a filter housing, wherein a plurality of partition plates are integrally formed in the filter housing, wherein the plurality of partition plates form a conveying channel in the filter housing, wherein the conveying channel is arranged in an arc shape, wherein the arc shape of the conveying channel is formed by a plurality of U-shapes, wherein interception plates are fixedly connected between the side walls of the plurality of partition plates, wherein the interception plates are provided with a plurality of through holes, and wherein a pair of interception plates are provided between adjacent side walls of the partition plates, wherein the through holes on the pair of interception plates are arranged in a staggered manner; The tail gas treatment device includes a treatment device body, wherein an absorption liquid is arranged in the treatment device body, and the absorption liquid is used to treat harmful substances in the tail gas. A delivery pipe is installed between the air outlet of the filter device shell and the air inlet of the treatment device body.

2. A phosphate production tail gas treatment device according to claim 1, characterized in that: The bottom of the filter housing is provided with a plurality of discharge ports, and the plurality of discharge ports are all connected to the conveying channel.

3. A phosphate production tail gas treatment device according to claim 2, characterized in that: An ash hopper is provided on the lower side of the filter device housing, and a plurality of feed ports are opened on the side wall and the top of the ash hopper.

4. A phosphate production tail gas treatment device according to claim 3, characterized in that: A slide pipe is fixedly connected between the plurality of discharge ports and the plurality of feed ports respectively, and an air inlet pipe is installed on the air inlet of the filter device shell.

5. A phosphate production tail gas treatment device according to claim 4, characterized in that: A discharge port is provided at the bottom of the ash hopper, and a discharge valve is installed on the discharge port.

6. The phosphate production tail gas treatment device according to claim 1, characterized in that: The absorption liquid is set as an aqueous solution, and an absorbent is added to the aqueous solution.

7. The phosphate production tail gas treatment device according to claim 1, characterized in that: An observation window is provided on the front side wall of the processing device body, a liquid inlet is installed on the upper end of the processing device body, and the upper cover of the liquid inlet is connected to a liquid inlet cap.

8. The phosphate production tail gas treatment device according to claim 1, characterized in that: A sewage outlet is provided on the lower side of the rear side wall of the processing device body, the sewage outlet is covered with a sewage cover, and an exhaust pipe is installed on the air outlet of the processing device body.

Images