Collecting filter device for arsenic and antimony fumes

Abstract

The utility model discloses a kind of collection filter devices of arsenic-containing antimony smoke dust, including support bracket, collection filter box, filter screen cylinder and top cover, the top cover with sealing ring is equipped in the top of collection filter box, top cover bottom welding filter screen cylinder, its bottom end is clamped in the annular clamping groove of box inner support ring, rotating shaft driven by servo motor is equipped in the below of top cover, rotating shaft is equipped with the connecting rod of dust cleaning brush, for automatically cleaning the large particle arsenic-containing antimony impurities intercepted by filter cartridge, impurity falls into dust hopper by ash guide ring, finally by ash pipe is discharged into collection box, realize continuous collection, after pre-treatment, flue gas is into the uniform gas box of processing box by communicating pipe, evenly dispersed to lye pool in chemical reaction by uniform gas branch pipe.The utility model realizes the efficient filtration of smoke dust, automatic dust cleaning and lye absorption treatment, with compact structure, convenient to disassemble and assemble, high processing efficiency, resource recyclable advantage.

Description

Technical Field

[0001] This utility model relates to the field of flue gas filtration technology, and more specifically, to a collection and filtration device for arsenic- and antimony-containing flue gas. Background Technology

[0002] Arsenic-antimony dust refers to a hazardous solid waste formed during metallurgical processes when arsenic and antimony, due to their low boiling points, easily volatilize and enter the flue gas. Subsequently, it condenses and accumulates with dust in the flue gas cooling system. Direct emission of arsenic-antimony dust can harm human health and the environment, thus requiring treatment. At the same time, although arsenic-antimony dust is harmful, it is also a valuable "urban mine," as it is rich in metals such as arsenic, antimony, lead, indium, and bismuth, which have high recycling value. Direct disposal is not only an environmental hazard but also a huge waste of resources.

[0003] The prior art discloses a system for treating arsenic-containing dust and smoke, application number CN202223531867.9. Although this utility model can use an arc-shaped filter to intercept and filter arsenic-containing dust and smoke and drive a brush driven by a drive motor to clean the intercepted solid dust, the fixed installation of the arc-shaped filter is relatively cumbersome and inconvenient. Ensuring the installation seal requires the use of an electric hydraulic push rod, which is complex in structure and inconvenient for subsequent maintenance and disassembly. Its practicality is relatively limited. Therefore, those skilled in the art have proposed a collection and filtration device for arsenic-antimony dust and smoke. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a collection and filtration device for arsenic-antimony-containing dust. It can use a filter cylinder to intercept and fix large particles of arsenic-antimony-containing solid impurities in the dust, and realize the collection and recycling of arsenic-antimony-containing solid particles. In addition, it is easy to disassemble and maintain the filter cylinder and servo motor, making the operation simpler and more convenient, and more practical, thereby solving the problems in the background technology mentioned above.

[0005] To achieve the aforementioned advantages of using a filter cylinder to intercept and fix large arsenic-antimony-containing solid impurities in flue gas, and to collect and recover these particles, while also facilitating the disassembly and maintenance of the filter cylinder and servo motor, making operation simpler and more convenient, and enhancing practicality, the specific technical solution adopted by this utility model is as follows: A collection and filtration device for arsenic-antimony-containing flue gas includes a support bracket, a collection and filter box, a filter cylinder, and a top cover. The collection and filter box is welded to one side of the support bracket, and a placement groove is formed in the center of the top surface of the collection and filter box. A sealing groove is formed on the outer side of the placement groove on the top surface of the collection and filter box. The filter cylinder is welded to the bottom surface of the top cover, and a sealing groove is fixedly installed on the bottom surface of the top cover. A sealing ring is fitted into a sealing groove. A support ring is welded to the inner wall of the collection filter box, and an annular locking groove is opened on the top surface of the support ring. The bottom end of the filter cylinder is fitted into the annular locking groove. A motor box is bolted to the center of the bottom surface of the top cover, and a servo motor is bolted to the motor box. A rotating shaft is keyed to the output end of the servo motor. Connecting rods are symmetrically welded on the rotating shaft, and a brush holder is welded to one end of the connecting rod. A dust removal brush is installed on the brush holder. A dust collection hopper is connected to the bottom of the inner cavity of the collection filter box, and a dust discharge pipe is connected to the bottom end of the inner cavity of the dust collection hopper. A dust discharge valve is installed on the dust discharge pipe, and a collection box is connected to the bottom end of the dust discharge pipe.

[0006] Furthermore, a processing box is welded and fixed to the other side of the top surface of the support bracket, and a solution pool is fixedly installed at the bottom of the inner cavity of the processing box. A heater is installed inside the side wall of the solution pool. An alkali inlet pipe is fixedly installed on the side wall of the processing box, and an inlet valve is installed on the alkali inlet pipe. An installation bracket is welded to the inner wall of the collection box, and a gas equalization box is fixedly installed on the installation bracket. Several gas equalization branch pipes are evenly connected to the bottom of the inner cavity of the gas equalization box. One end of a connecting pipe is connected to the top of the inner cavity of the collection and filtration box, and the other end of the connecting pipe passes through the side wall of the processing box and connects to the inner cavity of the gas equalization box. A drain pipe is connected to the bottom of the inner cavity of the solution pool, and a drain valve is installed on the drain pipe.

[0007] Furthermore, a dust guide ring is welded to the top surface of the support ring, and the side wall of the dust guide ring abuts against the inner wall of the filter screen cylinder.

[0008] Furthermore, a dust inlet pipe is connected to the bottom of the inner cavity of the collection and filter box.

[0009] Furthermore, an exhaust pipe is connected to the top of the inner cavity of the processing box.

[0010] Furthermore, a control panel is mounted on the support bracket, and the control panel is electrically connected to the servo motor, heater, inlet valve, ash drain valve, and outlet valve.

[0011] Furthermore, a handle is symmetrically welded to the top surface of the top cover.

[0012] Furthermore, the central axes of the collection filter box, top cover, filter screen cylinder, rotating shaft, support ring, ash collection hopper, and ash pipe are all on the same straight line.

[0013] Compared with the prior art, the present invention provides a collection and filtration device for arsenic-antimony-containing dust, which has the following beneficial effects: (1) This utility model can efficiently intercept and automatically clean large particulate impurities in arsenic and antimony-containing dust by setting a filter screen, a rotating brush driven by a servo motor and a dust collection hopper structure, effectively preventing filter screen blockage, realizing continuous separation and centralized collection of solid particles, and the filter screen and servo motor are easy to disassemble and install, and subsequent maintenance is simple, making it more practical.

[0014] (2) This utility model can evenly disperse the pretreated flue gas into the alkaline solution through the set gas equalization box, multiple gas equalization branch pipes and solution pool with heater, which greatly increases the gas-liquid contact area and enhances the chemical absorption reaction efficiency of the alkaline solution on arsenic and antimony particles by heating, and finally achieves efficient treatment and resource recovery of harmful components. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a collection and filtration device for arsenic-antimony-containing dust according to an embodiment of the present invention; Figure 2 According to the embodiments of this utility model Figure 1 Enlarged view of point A; Figure 3 According to the embodiments of this utility model Figure 1 Enlarged view of point B; Figure 4 According to the embodiments of this utility model Figure 1 Enlarged view of point C; Figure 5 This is a perspective view of the filter cylinder of the arsenic-antimony-containing fume collection and filtration device according to an embodiment of the present invention.

[0017] In the picture: 1. Top cover; 2. Filter screen cylinder; 3. Collection filter box; 4. Dust inlet pipe; 5. Ash hopper; 6. Collection box; 7. Support bracket; 8. Ash discharge pipe; 9. Ash discharge valve; 10. Rotating shaft; 11. Drain pipe; 12. Drain valve; 13. Handle; 14. Motor box; 15. Servo motor; 16. Connecting pipe; 17. Processing box; 18. Exhaust pipe; 19. Gas equalization box; 20. Solution pool; 21. Support ring; 22. Annular retaining groove; 23. Ash guide ring; 24. Connecting rod; 25. Brush holder; 26. Cleaning brush; 27. Placement slot; 28. Sealing slot; 29. ​​Sealing ring; 30. Mounting bracket; 31. Gas equalization branch pipe; 32. Heater; 33. Alkali solution inlet pipe; 34. Inlet valve. Detailed Implementation

[0018] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0019] According to an embodiment of the present invention, a collection and filtration device for arsenic-antimony-containing dust is provided.

[0020] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-5 As shown, the arsenic-antimony dust collection and filtration device according to an embodiment of the present invention includes a support bracket 7, a collection and filtration box 3, a filter cylinder 2, and a top cover 1. The collection and filtration box 3 is welded to one side of the support bracket 7, and a placement groove 27 is provided in the center of the top surface of the collection and filtration box 3. A sealing groove 28 is provided on the outer side of the placement groove 27 on the top surface of the collection and filtration box 3. The filter cylinder 2 is welded to the bottom surface of the top cover 1, and a sealing ring 29 is fixedly installed on the bottom surface of the top cover 1. The sealing ring 29 is embedded in the sealing groove 28. A support ring 21 is welded to the inner wall of the collection and filtration box 3, and an annular locking groove 22 is provided on the top surface of the support ring 21. The bottom end of the filter cylinder 2 is embedded in the annular locking groove 22. The bottom center of the top cover 1 is bolted to a motor box 14, and a servo motor 15 is bolted inside the motor box 14. The output end of the servo motor 15 is keyed to a rotating shaft 10. A connecting rod 24 is symmetrically welded on the rotating shaft 10. A brush holder 25 is welded to one end of the connecting rod 24, and a dust removal brush 26 is installed on the brush holder 25. The bottom of the inner cavity of the collection filter box 3 is connected to a dust collection hopper 5, and the bottom end of the inner cavity of the dust collection hopper 5 is connected to a dust discharge pipe 8. A dust discharge valve 9 is installed on the dust discharge pipe 8, and the bottom end of the dust discharge pipe 8 is connected to a collection box 6.

[0021] The filter cylinder 2 can be used to intercept and fix large particles of arsenic and antimony solid impurities in smoke and dust, and to collect and recycle arsenic and antimony solid particles. In addition, it is convenient to disassemble and maintain the filter cylinder 2 and the servo motor 15, making the operation simpler and more convenient, and more practical.

[0022] Please refer to Figure 1 and Figure 4 A processing box 17 is welded and fixed to the other side of the top surface of the support bracket 7. A solution pool 20 is fixedly installed at the bottom of the inner cavity of the processing box 17. A heater 32 is installed inside the side wall of the solution pool 20. An alkaline inlet pipe 33 is fixedly installed on the side wall of the processing box 17. An inlet valve 34 is installed on the alkaline inlet pipe 33. An installation bracket 30 is welded to the inner wall of the collection box 6. An air equalization box 19 is fixedly installed on the installation bracket 30. Several air equalization branch pipes 31 are evenly connected to the bottom of the inner cavity of the air equalization box 19. One end of a connecting pipe 16 is connected to the top of the inner cavity of the collection filter box 3. The other end of the connecting pipe 16 passes through the side wall of the processing box 17 and connects to the inner cavity of the air equalization box 19. A drain pipe 11 is connected to the bottom of the inner cavity of the solution pool 20. A drain valve 12 is installed on the drain pipe 11.

[0023] The process utilizes an alkaline solution to react chemically with arsenic- and antimony-containing fumes, generating water-soluble arsenite, arsenate, antimonite, and antimonate. Heating the solution with heater 32 accelerates the leaching reaction. The harmless gases produced after the reaction can be discharged through exhaust pipe 18. The bottom of the inner cavity of the solution tank 20 is connected to a drain pipe 11, which is equipped with a drain valve 12. By opening the drain valve 12, the reacted solution and leaching residue can be discharged for subsequent separation and purification, enabling the recovery and collection of arsenic, antimony, and other resources, thus enhancing its practicality.

[0024] Please refer to Figure 2 A dust guide ring 23 is welded to the top surface of the support ring 21, and the side wall of the dust guide ring 23 abuts against the inner wall of the filter screen cylinder 2.

[0025] The arsenic and antimony particles that were removed were collected by falling along the guide ring 23 into the inner cavity of the ash collection hopper 5.

[0026] Please refer to Figure 1 and Figure 2 The bottom of the inner cavity of the collection and filter box 3 is connected to the dust inlet pipe 4.

[0027] It serves to guide arsenic- and antimony-containing fumes through the fumes inlet pipe 4 into the inner cavity of the collection and filter box 3.

[0028] Please refer to Figure 1 An exhaust pipe 18 is installed at the top of the inner cavity of the treatment box 17.

[0029] It serves to allow the harmless gases produced after the reaction to be discharged through the exhaust pipe 18.

[0030] Please refer to Figure 1 The support bracket 7 is equipped with a control panel, which is electrically connected to the servo motor 15, heater 32, inlet valve 34, ash drain valve 9 and drain valve 12.

[0031] The control circuit of the control panel can be implemented by simple programming by those skilled in the art. It is common knowledge in the field. Since it is only used and not modified, the control method and circuit connection will not be described in detail.

[0032] Please refer to Figure 1 and Figure 5 The top cover 1 has a handle 13 symmetrically welded on its top surface.

[0033] This facilitates the disassembly and installation of the top cover 1.

[0034] Please refer to Figure 1 The central axes of the collection filter box 3, top cover 1, filter screen cylinder 2, rotating shaft 10, support ring 21, ash collection hopper 5 and ash pipe 8 are on the same straight line.

[0035] Working Principle: This utility model includes a support bracket 7, a collection and filter box 3, a filter cylinder 2, and a top cover 1. The collection and filter box 3 is welded to one side of the support bracket 7, and a placement groove 27 is formed in the center of the top surface of the collection and filter box 3. A sealing groove 28 is formed on the outer side of the placement groove 27 on the top surface of the collection and filter box 3. The filter cylinder 2 is welded to the bottom surface of the top cover 1, and a sealing ring 29 is fixedly installed on the bottom surface of the top cover 1, and the sealing ring 29 is embedded in the sealing groove 28. A support ring 21 is welded to the inner wall of the collection and filter box 3, and an annular locking groove 22 is formed on the top surface of the support ring 21. The bottom end of the filter cylinder 2 is embedded in the annular locking groove 22. A motor housing 14 is bolted to the center of the bottom surface of the top cover 1. A servo motor 15 is installed on an internal bolt, and the output end of the servo motor 15 is keyed to a rotating shaft 10. Connecting rods 24 are symmetrically welded to the rotating shaft 10, and a brush holder 25 is welded to one end of each connecting rod 24. A cleaning brush 26 is installed on the brush holder 25. A dust collection hopper 5 is connected to the bottom of the inner cavity of the collection filter box 3, and a dust discharge pipe 8 is connected to the bottom of the inner cavity of the dust collection hopper 5. A dust discharge valve 9 is installed on the dust discharge pipe 8, and a collection box 6 is connected to the bottom of the dust discharge pipe 8. In use, the user can introduce arsenic-antimony-containing dust into the inner cavity of the collection filter box 3 through the dust inlet pipe 4. When the arsenic-antimony-containing dust passes through the side wall of the filter cylinder 2, the large solid impurities it contains are intercepted. At this time, the servo motor 15 starts, driving the rotating shaft 10 to rotate. The arsenic-antimony particles that accumulate and become clogged can be cleaned and discharged by rotating the connecting rod 24, brush holder 25, and cleaning brush 26 via the rotating shaft 10. The particles fall along the guide ring 23 into the inner cavity of the ash collection hopper 5 for collection. Finally, the ash discharge valve 9 can be opened to guide the particles into the inner cavity of the collection box 6 for centralized collection and recovery. A handle 13 is symmetrically welded to the top surface of the top cover 1. When the filter cylinder 2 and servo motor 15 need to be disassembled for maintenance, the user only needs to lift the top cover 1 using the handle 13 to move the filter cylinder 2 and servo motor 15 out of the inner cavity of the collection filter box 3. The operation is simple and convenient, and the practicality is enhanced. In addition, this utility model is equipped with a processing box 17, a gas equalization box 19, and a solution pool 20. The other side of the top surface of the support bracket 7 is welded with a fixed... A treatment box 17 is provided, and a solution tank 20 is fixedly installed at the bottom of the inner cavity of the treatment box 17. A heater 32 is installed inside the side wall of the solution tank 20. An alkaline solution inlet pipe 33 is fixedly installed on the side wall of the treatment box 17, and an inlet valve 34 is installed on the alkaline solution inlet pipe 33. The user can introduce an appropriate amount of alkaline solution into the solution tank 20 through the alkaline solution inlet pipe 33 for the treatment of arsenic and antimony particulate dust. A collection box 6 is provided with a mounting bracket 30 welded to the inner wall, and a gas equalization box 19 is fixedly installed on the mounting bracket 30. Several gas equalization branch pipes 31 are evenly connected to the bottom of the inner cavity of the gas equalization box 19. A connecting pipe 16 is connected to the top of the inner cavity of the collection filter box 3, and the other end of the connecting pipe 16 passes through the side wall of the treatment box 17 and connects to the inner cavity of the gas equalization box 19.Therefore, the flue gas containing large arsenic and antimony particles can be introduced into the inner cavity of the gas equalization box 19 through the connecting pipe 16, and finally introduced into the alkaline solution through several gas equalization branch pipes 31. The alkaline solution reacts chemically with the arsenic and antimony-containing flue gas to generate water-soluble arsenite, arsenate, antimonite, and antimonate. Heating the solution with the heater 32 accelerates the leaching reaction. The harmless gas produced after the reaction can be discharged through the exhaust pipe 18. A drain pipe 11 is connected to the bottom of the inner cavity of the solution pool 20, and a drain valve 12 is installed on the drain pipe 11. By opening the drain valve 12, the reacted solution and leaching residue can be discharged for subsequent separation and purification, achieving the recovery and collection of arsenic, antimony, and other resources, thus enhancing its practicality.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A collection and filtration device for arsenic-antimony-containing dust, comprising a support bracket (7), a collection and filtration box (3), a filter cylinder (2), and a top cover (1), characterized in that, A collection filter box (3) is welded to one side of the support bracket (7), and a placement groove (27) is provided in the center of the top surface of the collection filter box (3). A sealing groove (28) is provided on the outside of the placement groove (27) on the top surface of the collection filter box (3). A filter screen cylinder (2) is welded to the bottom surface of the top cover (1), and a sealing ring (29) is fixedly installed on the bottom surface of the top cover (1). The sealing ring (29) is embedded in the sealing groove (28). A support ring (21) is welded to the inner wall of the collection filter box (3), and an annular locking groove (22) is provided on the top surface of the support ring (21). The bottom end of the filter screen cylinder (2) is embedded in the annular locking groove (22). The bottom of the top cover (1) is... A motor housing (14) is bolted to the center of the surface, and a servo motor (15) is bolted inside the motor housing (14). The output end of the servo motor (15) is keyed to a rotating shaft (10). A connecting rod (24) is symmetrically welded on the rotating shaft (10). A brush holder (25) is welded to one end of the connecting rod (24), and a dust removal brush (26) is installed on the brush holder (25). A dust collection hopper (5) is connected to the bottom of the inner cavity of the collection filter box (3), and a ash discharge pipe (8) is connected to the bottom of the inner cavity of the ash collection hopper (5). An ash discharge valve (9) is installed on the ash discharge pipe (8), and a collection box (6) is connected to the bottom of the ash discharge pipe (8).

2. The collection and filtration device for arsenic-antimony-containing dust according to claim 1, characterized in that, The support bracket (7) is welded and fixed to the other side of the top surface of the support bracket (7), and a solution tank (20) is fixedly installed at the bottom of the inner cavity of the treatment box (17), and a heater (32) is installed in the side wall of the solution tank (20). An alkaline inlet pipe (33) is fixedly installed on the side wall of the treatment box (17), and an inlet valve (34) is installed on the alkaline inlet pipe (33). The collection box (6) is welded to the inner wall of the collection box (6), and a gas equalization box (19) is fixedly installed on the mounting bracket (30). Several gas equalization branch pipes (31) are evenly connected to the bottom of the inner cavity of the gas equalization box (19). One end of a connecting pipe (16) is connected to the top of the inner cavity of the collection filter box (3), and the other end of the connecting pipe (16) passes through the side wall of the treatment box (17) and connects to the inner cavity of the gas equalization box (19). A drain pipe (11) is connected to the bottom of the inner cavity of the solution tank (20), and a drain valve (12) is installed on the drain pipe (11).

3. The collection and filtration device for arsenic-antimony-containing dust according to claim 1, characterized in that, The top surface of the support ring (21) is welded with a dust guide ring (23), and the side wall of the dust guide ring (23) abuts against the inner wall of the filter screen cylinder (2).

4. The collection and filtration device for arsenic-antimony-containing dust according to claim 1, characterized in that, The bottom of the inner cavity of the collection and filtration box (3) is connected to a dust inlet pipe (4).

5. The collection and filtration device for arsenic-antimony-containing dust according to claim 2, characterized in that, An exhaust pipe (18) is connected to the top of the inner cavity of the processing box (17).

6. The collection and filtration device for arsenic-antimony-containing dust according to claim 1, characterized in that, The support bracket (7) is equipped with a control panel, which is electrically connected to the servo motor (15), heater (32), inlet valve (34), ash drain valve (9) and drain valve (12).

7. The collection and filtration device for arsenic-antimony-containing dust according to claim 1, characterized in that, The top cover (1) has a handle (13) symmetrically welded on its top surface.

8. The collection and filtration device for arsenic-antimony-containing dust according to claim 1, characterized in that, The central axes of the collection filter box (3), top cover (1), filter screen cylinder (2), rotating shaft (10), support ring (21), ash collection hopper (5) and lower ash pipe (8) are on the same straight line.

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