Efficient dust collection equipment for pyrometallurgical lead smelting

Abstract

This utility model belongs to the field of pyrometallurgical lead smelting technology, specifically a high-efficiency dust collection device for pyrometallurgical lead smelting. It includes a shell, with a collection box slidably installed inside the shell. A first guide plate and a second guide plate are fixedly connected to the inner wall of the shell. A back-blowing mechanism is fixedly installed on the surface of the shell. A filter cartridge is fixedly connected to the top of the shell, and PTFE-coated filter media is fixedly connected to the inner wall of the filter cartridge. The PTFE-coated filter media efficiently filters dust, allowing fine lead dust particles to remain below it, while air is discharged upwards through the filter media. The PTFE-coated filter media has a superior dust filtration effect compared to dust collection bags, preventing fine lead dust particles from penetrating and discharging. Through the back-blowing mechanism, compressed air generated by a small air compressor flows through the air guide pipe and two branch pipes, and can be sprayed out from gas nozzles one and two. The air discharged from gas nozzle two blows onto the PTFE-coated filter media below.

Description

Technical Field

[0001] This utility model belongs to the field of pyrometallurgical lead smelting technology, specifically relating to a high-efficiency dust collection device for pyrometallurgical lead smelting. Background Technology

[0002] Traditional pyrometallurgical lead smelting processes have significant dust pollution problems.

[0003] Patent application (publication number: CN213895952U) discloses a high-efficiency dust collection device for pyrometallurgical lead smelting, including a mounting block. Multiple frustum tubes are fixedly and interwoven on the front side of the mounting block. Each frustum tube has a movable baffle on its front side. A connecting mechanism is provided between each frustum tube and the movable baffle at the corresponding position. The connecting mechanism consists of a connecting block, a fixed ring, a rotating shaft, two fixed rods, and a torsion spring. One side of the connecting block is fixedly connected to the outer wall of the movable baffle, and the other side of the connecting block is fixedly connected to the outer wall of the fixed ring. The rotating shaft is fixedly and interwoven with the inner wall of the fixed ring and rotatably connected between the two fixed rods. Both torsion springs are sleeved on the outside of the rotating shaft.

[0004] While the above application can improve the dust collection quality of dust collection equipment, the use of dust collection bags may have the following drawbacks: due to the wide particle size distribution of dust (0.1-100μm), fine lead dust particles can easily penetrate ordinary bags, which may lead to excessive emissions; lead compounds have strong adhesive properties and easily adhere to the inside of the bags. Utility Model Content

[0005] To address the problems mentioned in the background section, this utility model provides a high-efficiency dust collection device for pyrometallurgical lead smelting.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency dust collection device for pyrometallurgical lead smelting, comprising a shell, a collection box slidably installed inside the shell, a guide plate one fixedly connected to the inner wall of the shell, a guide plate two fixedly connected to the inner wall of the shell, a back-blowing mechanism fixedly installed on the surface of the shell, a filter cartridge fixedly connected to the top of the shell, and a PTFE membrane filter material fixedly connected to the inner wall of the filter cartridge;

[0007] The backflush mechanism includes a small air compressor, the output end of which is fixedly connected to an air guide pipe. A first split pipe is fixedly connected to the surface of the air guide pipe, a first gas nozzle is fixedly connected to the surface of the first split pipe, a second split pipe is fixedly connected to the surface of the air guide pipe, and a second gas nozzle is fixedly connected to the surface of the second split pipe.

[0008] Preferably, a support frame is fixedly connected to the inner wall of the outer casing, a motor is fixedly installed at the end of the support frame, and a fan blade is fixedly connected to the output end of the motor.

[0009] Preferably, the inner wall of the outer shell is fixedly connected with a flow guide plate three, which are symmetrically distributed vertically.

[0010] Preferably, a pump is fixedly installed on the upper surface of the housing, a water guide pipe is fixedly connected to the output end of the pump, and an atomizing nozzle is fixedly connected to the surface of the water guide pipe.

[0011] Preferably, the first gas nozzle is arranged horizontally and its height is higher than that of the second guide plate.

[0012] Preferably, the second gas nozzle is arranged vertically and its number and position correspond to the filter cartridge, and the second gas nozzle is located above the filter cartridge.

[0013] Preferably, the atomizing nozzle is located above the opening of the collection box.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This high-efficiency dust collection equipment for pyrometallurgical lead smelting uses a guide plate to guide the dust through rotating fan blades. The dust moves towards the filter cartridge via the guide plate and is filtered by PTFE membrane filter media. The PTFE membrane filter media efficiently filters the dust, trapping fine lead dust particles below it, while air is discharged upwards through the PTFE membrane filter media. The PTFE membrane filter media offers superior dust filtration compared to dust collection bags, preventing fine lead dust particles from penetrating and escaping. A back-blowing mechanism allows compressed air from a small air compressor to flow through the air guide pipe and two branch pipes, exiting from gas nozzles one and two. The air from gas nozzle two blows onto the PTFE membrane filter media below, effectively blowing the filtered fine lead dust particles out of the filter cartridge and preventing them from remaining below the PTFE membrane filter media. The horizontal gas nozzle one further facilitates blowing fine lead dust particles into the collection box. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model, used together with the embodiments of this utility model to explain this utility model, and do not constitute a limitation on this utility model. In the drawings:

[0017] Figure 1 This is a complete structural schematic diagram of the present invention;

[0018] Figure 2 This is a top view structural diagram of the present invention;

[0019] Figure 3 This is the right view of the present invention;

[0020] Figure 4 This is a diagram of the internal structure of this utility model.

[0021] In the diagram: 1. Outer shell; 2. Collection box; 3. Guide plate one; 4. Guide plate two; 5. Backflush mechanism; 51. Small air compressor; 52. Air guide pipe; 53. Diverter pipe one; 54. Gas nozzle one; 55. Diverter pipe two; 56. Gas nozzle two; 6. Filter cartridge; 7. PTFE membrane filter media; 8. Support frame; 9. Motor; 10. Fan blade; 11. Guide plate three; 12. Pump; 13. Water guide pipe; 14. Atomizing nozzle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 The present invention provides the following technical solution: a high-efficiency dust collection device for pyrometallurgical lead smelting, comprising an outer shell 1, a collection box 2 slidably installed inside the outer shell 1, a guide plate 3 fixedly connected to the inner wall of the outer shell 1, a guide plate 4 fixedly connected to the inner wall of the outer shell 1, a back-blowing mechanism 5 fixedly installed on the surface of the outer shell 1, a filter cartridge 6 fixedly connected to the top of the outer shell 1, and a PTFE membrane filter material 7 fixedly connected to the inner wall of the filter cartridge 6;

[0024] The backflush mechanism 5 includes a small air compressor 51. The output end of the small air compressor 51 is fixedly connected to an air guide pipe 52. A first split pipe 53 is fixedly connected to the surface of the air guide pipe 52. A first gas nozzle 54 is fixedly connected to the surface of the first split pipe 53. A second split pipe 55 is fixedly connected to the surface of the air guide pipe 52. A second gas nozzle 56 is fixedly connected to the surface of the second split pipe 55.

[0025] In this embodiment, the fan blades 10 rotate via the guide plate 3 to guide the smoke and dust. The smoke and dust move towards the filter cartridge 6 via the guide plate 3, and are then filtered by the PTFE membrane filter media 7. The PTFE membrane filter media 7 efficiently filters the smoke and dust, allowing fine lead dust particles to remain below it, while air is discharged upwards through the PTFE membrane filter media 7. The PTFE membrane filter media 7 has a superior dust filtration effect compared to dust collection bags, preventing fine lead dust particles from penetrating and discharging. The air is then discharged through a backflushing machine. With the configuration of structure 5, the compressed air generated by the small air compressor 51 flows through the air guide pipe 52 and the first and second branch pipes 52 and can be sprayed out from the first gas nozzle 54 and the second gas nozzle 56. The air discharged from the second gas nozzle 56 blows to the PTFE membrane filter material 7 below, which helps to blow the fine lead dust filtered by the PTFE membrane filter material 7 out of the filter cartridge 6 and prevents the fine lead dust from remaining below the PTFE membrane filter material 7. The horizontal first gas nozzle 54 helps to blow the fine lead dust into the collection box 2.

[0026] Specifically, a support frame 8 is fixedly connected to the inner wall of the outer casing 1, a motor 9 is fixedly installed at the end of the support frame 8, and a fan blade 10 is fixedly connected to the output end of the motor 9. The support frame 8 is used to fix the motor 9, and the motor 9 can drive the fan blade 10 to rotate, so that the fan blade 10 can suck in the smoke and dust from the outside.

[0027] Specifically, the inner wall of the outer casing 1 is fixedly connected with a guide plate 311. The guide plate 311 is symmetrically distributed vertically. The symmetrical arrangement of the guide plate 311 can help the inhaled smoke and dust to form a lateral flow, which can prevent it from exceeding the range of the fan blade 10.

[0028] Specifically, a pump 12 is fixedly installed on the upper surface of the outer casing 1. A water guide pipe 13 is fixedly connected to the output end of the pump 12. An atomizing nozzle 14 is fixedly connected to the surface of the water guide pipe 13. The input end of the pump 12 can draw water from the outside through an external water pipe, and then guide the water through the water guide pipe 13 and finally spray it out from the atomizing nozzle 14.

[0029] Specifically, the gas nozzle 54 is arranged horizontally and is higher than the guide plate 4. The gas nozzle 54 can generate a horizontal airflow, which is conducive to blowing the fine lead dust particles to move laterally so that they can enter the collection box 2. The guide plate 4 plays the role of guiding the fine lead dust particles laterally.

[0030] Specifically, the second gas nozzle 56 is arranged vertically and its number and position correspond to the filter cartridge 6. The second gas nozzle 56 is located above the filter cartridge 6. The second gas nozzle 56 can form a vertical airflow that can blow into the filter cartridge 6 and blow out the fine lead dust particles filtered by the PTFE membrane filter material 7, thus preventing the fine lead dust particles from remaining below the PTFE membrane filter material 7.

[0031] Specifically, the atomizing nozzle 14 is located above the opening of the collection box 2. The atomizing nozzle 14 can spray atomized water vapor, which can help fine lead dust particles settle in the collection box 2.

[0032] The working principle or usage process of this utility model is as follows: When in use, the starting motor 9 drives the fan blade 10 to rotate, thereby drawing in external smoke and dust. The smoke and dust move towards the filter cartridge 6 via the guide plate 3, and are then filtered by the PTFE membrane filter media 7. The PTFE membrane filter media 7 efficiently filters the smoke and dust, and fine lead dust particles are retained below the PTFE membrane filter media 7. Air is discharged upward through the PTFE membrane filter media 7. The dust filtration effect of the PTFE membrane filter media 7 is superior to that of dust collection bags, preventing fine lead dust particles from penetrating and being discharged. Then, the back-blowing mechanism 5 can be started. The compressed air generated by the small air compressor 51 flows through the air guide pipe 52 and the first and second branch pipes 52 and can be sprayed out from the first and second gas nozzles 54 and 56. The air discharged from the second gas nozzle 56 blows the PTFE membrane filter material 7 below, which helps to blow the fine lead dust filtered by the PTFE membrane filter material 7 out of the filter cartridge 6, preventing the fine lead dust from remaining below the PTFE membrane filter material 7. The horizontal gas nozzle 54 helps to blow the fine lead dust into the collection box 2. Finally, the pump 12 can be started. The input end of the pump 12 can be connected to an external water pipe in advance to draw external water, and then the water is introduced through the water guide pipe 13 and finally sprayed out from the atomizing nozzle 14, which can make the fine lead dust settle in the collection box 2. When the dust particles collected in the collection box 2 reach a certain amount, they can slide out, and then the dust particles in the collection box 2 can be poured out. The electrical equipment in this device is all connected to an external power supply and is controlled by a matching control switch to operate and shut down.

[0033] Finally, it should be noted that the above descriptions are merely preferred embodiments of this utility model and are not intended to limit the utility model. The selection and detailed description of these embodiments in this specification are for the purpose of better explaining the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high efficiency dust collection equipment for pyrometallurgical lead smelting, comprising a housing (1), characterized in that: A collection box (2) is slidably installed inside the outer shell (1). A guide plate (3) is fixedly connected to the inner wall of the outer shell (1). A guide plate (4) is fixedly connected to the inner wall of the outer shell (1). A backflushing mechanism (5) is fixedly installed on the surface of the outer shell (1). A filter cartridge (6) is fixedly connected to the top of the outer shell (1). A PTFE membrane filter material (7) is fixedly connected to the inner wall of the filter cartridge (6). The backflush mechanism (5) includes a small air compressor (51), the output end of which is fixedly connected to an air guide pipe (52), a first split pipe (53) is fixedly connected to the surface of the air guide pipe (52), a first gas nozzle (54) is fixedly connected to the surface of the first split pipe (53), a second split pipe (55) is fixedly connected to the surface of the air guide pipe (52), and a second gas nozzle (56) is fixedly connected to the surface of the second split pipe (55).

2. The high-efficiency dust collection equipment for pyrometallurgical lead smelting according to claim 1, characterized in that: A support frame (8) is fixedly connected to the inner wall of the outer shell (1), and a motor (9) is fixedly installed at the end of the support frame (8). A fan blade (10) is fixedly connected to the output end of the motor (9).

3. The high-efficiency dust collection equipment for pyrometallurgical lead smelting according to claim 1, characterized in that: The inner wall of the outer shell (1) is fixedly connected to a flow guide plate three (11), which is symmetrically distributed vertically.

4. The high-efficiency dust collection equipment for pyrometallurgical lead smelting according to claim 1, characterized in that: A pump (12) is fixedly installed on the upper surface of the outer shell (1), and a water guide pipe (13) is fixedly connected to the output end of the pump (12). An atomizing nozzle (14) is fixedly connected to the surface of the water guide pipe (13).

5. The high-efficiency dust collection equipment for pyrometallurgical lead smelting according to claim 1, characterized in that: The gas nozzle one (54) is arranged horizontally and its height is higher than that of the guide plate two (4).

6. The high-efficiency dust collection equipment for pyrometallurgical lead smelting according to claim 1, characterized in that: The second gas nozzle (56) is arranged longitudinally and its number and position correspond to the filter cartridge (6), and the second gas nozzle (56) is located above the filter cartridge (6).

7. The high-efficiency dust collection equipment for pyrometallurgical lead smelting according to claim 4, characterized in that: The atomizing nozzle (14) is located above the opening of the collection box (2).

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