Efficient dust collection equipment for flue gas treatment of fuming furnace

Abstract

The invention relates to the technical field of fuming furnaces, in particular to efficient dust collection equipment for flue gas treatment of a fuming furnace. Comprising a box body, a box cover, a valve, an air inlet pipe, an air outlet pipe, a mounting plate, a cloth bag, a limiting ring and the like, a box cover is arranged at the top of the box body, a dust outlet is formed in the bottom of the box body, a valve is arranged at the dust outlet, an air inlet pipe is arranged on one side of the box body, an air outlet pipe is arranged on the box cover, a mounting plate is arranged in the box body, a plurality of mounting openings are formed in the mounting plate, a cloth bag is mounted at each mounting opening, a limiting ring is arranged at the top of each cloth bag, and the size of each limiting ring is larger than that of each mounting opening. An electric sliding rail is installed in the box body, and a sliding block of the electric sliding rail is connected with the movable plate. Through the design of the electric sliding rail and the moving plate, when high-pressure gas is stopped from being conveyed after dust cleaning is finished, the electric sliding rail drives the moving plate to move downwards, dust drifting in the box body is pressed to a dust outlet, raised dust is forced to settle, the drifting dust is prevented from being attached to a cloth bag again, settled dust is discharged through a bottom valve, and secondary pollution is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fuming furnace, in particular to a high-efficiency dust collecting equipment for fuming furnace flue gas treatment. BACKGROUND

[0002] The fuming furnace is a high-temperature reaction equipment used in metallurgical industry, mainly used for recovering valuable metals (such as lead, zinc, tin, etc.) from liquid slag. Its core principle is to blow a mixture of air and pulverized coal into molten slag, use carbon thermal reduction reaction to convert metal oxides into volatile compounds (such as metal vapor, oxide or sulfide), then form dust through secondary oxidation, and finally recover as secondary zinc oxide, lead oxide, etc. products through dust removal equipment. The bag filter is widely used in the purification treatment of such flue gas due to its high filtration performance.

[0003] When the dust collecting is completed and the bag is cleaned, the traditional equipment usually adopts a single cleaning method, such as relying only on high-pressure gas cleaning. After the high-pressure gas blows off the dust on the surface of the bag, suspended dust is easily formed in the box. When the cleaning gas flow stops, part of the scattered dust will reattach to the surface of the bag, causing secondary pollution and reducing the filtration efficiency. SUMMARY

[0004] In order to overcome the shortcoming that the cleaning method of the traditional equipment easily causes secondary pollution of the bag, the present application provides a high-efficiency dust collecting equipment for fuming furnace flue gas treatment.

[0005] The technical implementation scheme of the present application is: a high-efficiency dust collecting equipment for fuming furnace flue gas treatment, comprising a box body, a box cover, a valve, an air inlet pipe, an air outlet pipe, a mounting plate, a bag, a limiting ring, an electric sliding rail, a moving plate, a fixed frame and a cleaning assembly. The box body is provided with a box cover at the top and an air outlet at the bottom. The air outlet is provided with a valve. The box body is provided with an air inlet pipe on one side. The box cover is provided with an air outlet pipe. The box body is provided with a mounting plate. The mounting plate is provided with a plurality of mounting holes. Each mounting hole is provided with a bag. The top of the bag is provided with a limiting ring. The size of the limiting ring is larger than that of the mounting hole. The box body is provided with an electric sliding rail. The sliding block of the electric sliding rail is connected with a moving plate. The moving plate is attached to the inner wall of the box body. The bag is provided with a fixed frame. The box cover is provided with a cleaning assembly.

[0006] As a further preferred scheme, it further comprises a mounting seat, a mounting ring, a locking frame, a locking block and a protrusion. The mounting seat is provided at the mounting hole of the mounting plate. The mounting seat is provided with a limiting slot. The top of the fixed frame is provided with a mounting ring. The top of the mounting ring is rotatably provided with a locking frame. The locking frame is provided with a locking block and a protrusion. The locking block is used for embedding into the limiting slot.

[0007] As a further preferred scheme, the ash removal assembly comprises a gas delivery pipe and a fixing member, the bottom of the cover is provided with the gas delivery pipe, a plurality of gas outlets are arranged on the gas delivery pipe, each gas outlet is located directly above each mounting port, the bottom of the cover is provided with the fixing member, the cover is provided with a gas inlet, and the gas delivery pipe is connected with the gas inlet.

[0008] As a further preferred scheme, the ash removal assembly further comprises a cleaning ring and a cleaning brush, and the bottom of the moving plate is provided with a plurality of cleaning rings, and the cleaning rings are provided with the cleaning brushes.

[0009] As a further preferred scheme, the ash removal assembly further comprises a fixing bolt, and the cleaning rings are fixed to the moving plate through the fixing bolt.

[0010] As a further preferred scheme, the ash removal assembly further comprises a counterweight, and the bottom of the cloth bag is provided with the counterweight.

[0011] As a further preferred scheme, the ash removal assembly further comprises a fixing block, an elastic member, a rotating rod, a cam and a driving mechanism, the mounting seat and the mounting plate are in sliding connection, the mounting seat is provided with the fixing block, the fixing block and the mounting plate are connected with the elastic member, a plurality of rotating rods are rotatably arranged in the box body, the rotating rods are provided with a plurality of cams, the cams are in contact with the counterweight, the box body is provided with the driving mechanism, and the driving mechanism is connected with the rotating rods.

[0012] As a further preferred scheme, the ash removal assembly further comprises a motor, a chain wheel, a chain and a protective shell, the rotating rods penetrate through one side of the box body and are provided with the chain wheels, the chain wheels are wrapped with the chains outside, one side of the box body is provided with the protective shell, the chain wheels and the chains are located in the protective shell, the motor is mounted on the protective shell, and an output shaft of the motor is connected with one of the chain wheels.

[0013] Compared with the prior art, the ash removal assembly has the following advantages: 1. When the ash removal is completed and the high-pressure gas is stopped, the electric sliding rail drives the moving plate to move downward, so that the dust in the box body is pressed toward the dust outlet, the dust is forced to settle, the dust is prevented from re-attaching to the cloth bag, the settled dust is discharged through the bottom valve, and secondary pollution is prevented.

[0014] 2. The ash removal assembly can accurately spray gas flow, the physical scraping effect of the cleaning ring and the cleaning brush is combined, a double ash removal mechanism is formed, the ash removal efficiency is significantly improved, the cam periodically impacts the counterweight, the cloth bag is vertically shaken, the stubborn and hardened dust is removed, the filtering performance is further ensured, and the shortcomings of the traditional single ash removal mode are solved.

[0015] 3. The present invention achieves quick and secure installation and disassembly of the cloth bag and the fixed frame by using the top limiting ring of the cloth bag in conjunction with the locking frame and limiting groove of the mounting base, which simplifies the maintenance process and shortens downtime; the cleaning ring is detachably connected to the moving plate by fixing bolts, which makes it easy to replace worn cleaning brushes or perform cleaning and maintenance, and the operation is simple.

[0016] 4. This invention sets a counterweight at the bottom of the bag, which hangs down naturally during installation due to gravity, ensuring that the bag always remains vertical and taut. This effectively prevents the bag from twisting or folding and facilitates the smooth installation of the fixing frame. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the interior of the housing of the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the mounting plate, cloth bag, and electric slide rail of the present invention.

[0020] Figure 4 This is a three-dimensional structural diagram of the electric slide rail and moving plate of the present invention.

[0021] Figure 5 This is a three-dimensional structural diagram of the electric slide rail, moving plate, and cleaning ring of the present invention.

[0022] Figure 6 This is a three-dimensional structural diagram of the cleaning ring, cleaning brush, and fixing bolts of the present invention.

[0023] Figure 7 This is a three-dimensional structural diagram of the cloth bag and mounting base of the present invention.

[0024] Figure 8 This is an exploded view of the cloth bag, mounting base, and fixing frame of the present invention.

[0025] Figure 9 This is a three-dimensional structural diagram of the mounting base and fixing block of the present invention.

[0026] Figure 10 This is a three-dimensional structural diagram of the cloth bag, limiting ring, and counterweight of the present invention.

[0027] Figure 11 This is a three-dimensional structural diagram of the fixing frame, mounting ring, and locking bracket of the present invention.

[0028] Figure 12 This is an exploded view of the mounting ring and locking bracket of the present invention.

[0029] Figure 13This is a three-dimensional structural diagram of the gas supply pipe, gas outlet, and fixing component of the present invention.

[0030] Figure 14 This is a three-dimensional structural diagram of the cam, motor, and sprocket of the present invention.

[0031] In the attached diagram, the following are the reference numerals: 1-box body, 2-box cover, 3-valve, 4-air inlet pipe, 5-air outlet pipe, 6-mounting plate, 7-cloth bag, 701-limiting ring, 702-counterweight block, 8-electric slide rail, 9-moving plate, 10-cleaning ring, 11-cleaning brush, 12-fixing bolt, 13-mounting seat, 14-limiting groove, 15-fixing block, 16-elastic element, 17-fixing frame, 18-mounting ring, 19-locking frame, 20-locking block, 21-protrusion, 22-air supply pipe, 23-air outlet, 24-fixing element, 25-air inlet, 26-rotating rod, 27-cam, 28-motor, 29-sprocket, 30-chain, 31-protective shell. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] A high-efficiency dust collection device for treating flue gas from a fuming furnace, such as Figures 1-11 As shown, the assembly includes a housing 1, a cover 2, a valve 3, an air inlet pipe 4, an air outlet pipe 5, a mounting plate 6, a filter bag 7, a limiting ring 701, an electric slide rail 8, a moving plate 9, a fixed frame 17, and a dust removal assembly. The top of the housing 1 is provided with a cover 2, and the bottom of the housing 1 is provided with a dust outlet. A valve 3 is provided at the dust outlet. An air inlet pipe 4 is provided on one side of the housing 1, and an air outlet pipe 5 is provided on the cover 2. The mounting plate 6 is provided inside the housing 1. The mounting plate 6 has multiple mounting openings, and a filter bag 7 is installed at each mounting opening. A limiting ring 701 is provided at the top of the filter bag 7. The size of the limiting ring 701 is larger than the mounting opening. An electric slide rail 8 is installed inside the housing 1. The slider of the electric slide rail 8 is connected to the moving plate 9. The moving plate 9 fits against the inner wall of the housing 1. A fixed frame 17 is provided inside the filter bag 7. A dust removal assembly is provided on the cover 2.

[0034] Flue gas enters the housing 1 through the inlet pipe 4. Inside the housing 1, it is filtered by multiple filter bags 7 on the mounting plate 6. Dust is trapped on the surface of the filter bags 7. The purified gas is discharged from the inside of the filter bags 7 through the outlet pipe 5. At this time, the valve 3 is closed. As particulate matter accumulates on the surface of the filter bags 7, the filter bags 7 need to be cleaned after the dust collection work is completed. The cleaning component delivers high-pressure gas into the filter bags 7. The airflow blows off the dust adhering to the surface of the filter bags 7. When the high-pressure gas is stopped after the cleaning is completed, there will still be dust floating in the housing 1. At this time, the electric slide rail 8 drives the moving plate 9 to move downward, pressing the dust floating in the housing 1 downward toward the dust outlet until the moving plate 9 moves to the bottom of the filter bags 7, forcing the dust to settle and preventing the floating dust from re-adhering to the filter bags 7. At this time, the valve 3 opens, and the settled dust is discharged through the bottom valve 3.

[0035] like Figures 7-12 As shown, it also includes a mounting base 13, a mounting ring 18, a locking frame 19, a locking block 20, and a protrusion 21. The mounting plate 6 has a mounting base 13 at the mounting opening. The mounting base 13 has a limit groove 14. The top of the fixed frame 17 has a mounting ring 18. The top of the mounting ring 18 is rotatably equipped with a locking frame 19. The locking frame 19 has a locking block 20 and a protrusion 21. The locking block 20 is used to embed into the limit groove 14. When installing the cloth bag 7, insert the cloth bag 7 into the mounting opening of the mounting plate 6, so that the limiting ring 701 at the top of the cloth bag 7 is placed on the mounting base 13. Then, insert the fixing frame 17 into the cloth bag 7, and place the mounting ring 18 at the top of the fixing frame 17 on the limiting ring 701. At this time, rotate the locking frame 19 by the protrusion 21, so that the locking block 20 is embedded into the limiting groove 14 of the mounting base 13, thus completing the installation of the cloth bag 7 and firmly fixing the cloth bag 7 on the mounting plate 6. This facilitates the installation and removal of the cloth bag 7 and makes it easier to maintain and replace the cloth bag 7 in the future.

[0036] like Figure 2 and Figure 13As shown, the dust removal assembly includes an air supply pipe 22 and a fixing component 24. The bottom of the box cover 2 is provided with an air supply pipe 22, and the air supply pipe 22 is provided with multiple air outlets 23. Each air outlet 23 is located directly above each installation port. The bottom of the box cover 2 is provided with a fixing component 24, and the box cover 2 is provided with an air inlet 25. The air supply pipe 22 is connected to the air inlet 25. During the dust removal process, high-pressure gas is supplied to the air supply pipe 22 through the air inlet 25. The air supply pipe 22 sprays high-pressure gas onto the top of the filter bag 7 through the air outlet 23. Multiple air outlets 23 are evenly distributed above each filter bag 7, so that the high-pressure gas is accurately sprayed onto the top of the filter bag 7 and impacts the filter bag 7 evenly from the inside out, effectively removing the dust attached to the surface of the filter bag 7 and improving the dust removal effect. The fixing part 24 is used to securely install the air supply pipe 22 at the bottom of the box cover 2 to ensure that the position of the air supply pipe 22 is fixed during operation and will not shake due to the supply of high-pressure gas, ensuring that the air outlet 23 can continuously and stably spray gas onto the filter bag 7.

[0037] like Figures 5-6 As shown, it also includes cleaning rings 10 and cleaning brushes 11. Multiple cleaning rings 10 are provided at the bottom of the moving plate 9, and cleaning brushes 11 are provided on the cleaning rings 10. During the movement of the moving plate 9, the cleaning rings 10 and cleaning brushes 11 move together with the moving plate 9. The cleaning brushes 11 physically scrape the outer surface of the cloth bag 7 to help remove stubborn dust and improve the dust removal effect.

[0038] like Figure 6 As shown, it also includes fixing bolts 12, through which the cleaning ring 10 is fixed to the movable plate 9. The fixing bolts 12 provide a detachable connection, facilitating the replacement or maintenance of the cleaning ring 10, and ensuring a firm connection between the cleaning ring 10 and the movable plate 9, preventing the cleaning ring 10 from falling off due to vibration during movement.

[0039] like Figures 7-10 As shown, it also includes a counterweight 702, which is located at the bottom of the bag 7. The counterweight 702 located at the bottom of the bag 7 uses its own weight to hang down naturally during installation, pulling the bag 7 to a vertical and taut state, preventing the bag 7 from twisting or folding, and facilitating the installation of the fixing frame 17.

[0040] like Figure 2 and Figure 14As shown, it also includes a fixed block 15, an elastic element 16, a rotating rod 26, a cam 27, and a drive mechanism. The mounting base 13 and the mounting plate 6 are slidably connected. The mounting base 13 is provided with a fixed block 15, and the fixed block 15 is connected to the mounting plate 6 by an elastic element 16. Multiple rotating rods 26 are rotatably provided inside the housing 1. Multiple cams 27 are provided on the rotating rods 26. The cams 27 contact the counterweight 702. The housing 1 is provided with a drive mechanism, which is connected to the rotating rods 26. The drive mechanism drives the rotating rods 26 to rotate, and the cams 27 on the rotating rods 26 rotate accordingly. The cams 27 periodically strike the counterweight 702, generating a vertical impact force. The counterweight 702 transmits the force to the mounting base 13 through the fixed frame 17, thereby causing the filter bag 7, the fixed frame 17, and the mounting base 13 to move up and down, thereby causing the filter bag 7 to shake, enhancing the dust removal effect, and making it easier for some tightly adhered dust on the surface of the filter bag 7 to fall off during the shaking process, improving the dust removal efficiency and ensuring the filtration performance of the filter bag 7.

[0041] like Figure 1 and Figure 14 As shown, the system also includes a motor 28, a sprocket 29, a chain 30, and a protective shell 31. A rotating rod 26 passes through one side of the housing 1 and has a sprocket 29. A chain 30 is wound around the outside of the sprocket 29. A protective shell 31 is located on one side of the housing 1, with both the sprocket 29 and the chain 30 inside. The protective shell 31 limits the movement of the chain 30. The motor 28 is mounted on the protective shell 31, and its output shaft is connected to one of the sprockets 29. The motor 28 drives multiple rotating rods 26 to rotate synchronously via the sprockets 29 and the chain 30, ensuring that the cams 27 on each rotating rod 26 move in unison. This achieves synchronous shaking and dust removal of multiple filter bags 7, improving overall dust removal efficiency and making the dust collection equipment's dust removal work more coordinated and efficient. The protective shell 31 protects the sprockets 29 and the chain 30, preventing dust and other impurities from entering the transmission structure, avoiding wear on transmission components, ensuring stable operation of the transmission structure, and extending the equipment's service life.

[0042] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.

Claims

1. A high-efficiency dust collection device for flue gas treatment of a fuming furnace, comprising a box body (1) and a box cover (2), the top of the box body (1) being provided with the box cover (2), characterized in that: It also includes a valve (3), an air inlet pipe (4), an air outlet pipe (5), a mounting plate (6), a cloth bag (7), a limiting ring (701), an electric slide rail (8), a moving plate (9), a fixed frame (17), and a dust removal assembly. The bottom of the box (1) is provided with a dust outlet, and a valve (3) is provided at the dust outlet. An air inlet pipe (4) is provided on one side of the box (1), and an air outlet pipe (5) is provided on the box cover (2). The box (1) is provided with a mounting plate (6), and multiple installation ports are opened on the mounting plate (6). A cloth bag (7) is installed at each installation port. A limiting ring (701) is provided at the top of the cloth bag (7). The size of the limiting ring (701) is larger than the installation port. An electric slide rail (8) is installed inside the box (1). The slider of the electric slide rail (8) is connected to the moving plate (9). The moving plate (9) fits against the inner wall of the box (1). A fixed frame (17) is provided inside the cloth bag (7). A dust removal assembly is provided on the box cover (2).

2. The high-efficiency dust collection equipment for flue gas treatment of a fumace according to claim 1, characterized in that: It also includes a mounting base (13), a mounting ring (18), a locking frame (19), a locking block (20) and a protrusion (21). The mounting plate (6) has a mounting base (13) at the mounting opening. The mounting base (13) has a limit groove (14). The top of the fixed frame (17) has a mounting ring (18). The top of the mounting ring (18) has a rotatable locking frame (19). The locking frame (19) has a locking block (20) and a protrusion (21). The locking block (20) is used to embed into the limit groove (14).

3. The high-efficiency dust collection equipment for flue gas treatment of a fumace according to claim 1, characterized in that: The dust removal assembly includes an air supply pipe (22) and a fixing component (24). The bottom of the box cover (2) is provided with an air supply pipe (22). The air supply pipe (22) is provided with multiple air outlets (23). Each air outlet (23) is located directly above each installation port. The bottom of the box cover (2) is provided with a fixing component (24). The box cover (2) is provided with an air inlet (25). The air supply pipe (22) is connected to the air inlet (25).

4. The high-efficiency dust collection equipment for flue gas treatment of a fumace according to claim 1, characterized in that: It also includes cleaning rings (10) and cleaning brushes (11). Multiple cleaning rings (10) are provided at the bottom of the moving plate (9), and cleaning brushes (11) are provided on the cleaning rings (10).

5. The high-efficiency dust collection equipment for flue gas treatment of a fumace according to claim 4, characterized in that: It also includes a fixing bolt (12), and the cleaning ring (10) is fixed to the moving plate (9) by the fixing bolt (12).

6. The high-efficiency dust collection equipment for flue gas treatment of a fumace according to claim 1, characterized in that: It also includes a counterweight (702), and the bottom of the bag (7) is provided with a counterweight (702).

7. The high-efficiency dust collection equipment for flue gas treatment of a fumace according to claim 1, characterized in that: It also includes a fixed block (15), an elastic element (16), a rotating rod (26), a cam (27) and a drive mechanism. The mounting base (13) and the mounting plate (6) are slidably connected. The mounting base (13) is provided with a fixed block (15). An elastic element (16) is connected between the fixed block (15) and the mounting plate (6). Multiple rotating rods (26) are rotatably provided inside the box (1). Multiple cams (27) are provided on the rotating rods (26). The cams (27) are in contact with the counterweight (702). The box (1) is provided with a drive mechanism, which is connected to the rotating rods (26).

8. The high-efficiency dust collection equipment for flue gas treatment of a fumace according to claim 7, characterized in that: Further comprising a motor (28), a chain wheel (29), a chain (30) and a protective shell (31), the rotating rod (26) penetrates through one side of the box body (1) and is provided with the chain wheel (29), the chain wheel (29) is provided with the chain (30) outside, one side of the box body (1) is provided with the protective shell (31), the chain wheel (29) and the chain (30) are located in the protective shell (31), the motor (28) is installed on the protective shell (31), and the output shaft of the motor (28) is connected with one of the chain wheels (29).

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