Waste gas treatment device for aluminum scrap recovery smelting furnace

Abstract

The utility model relates to the related field of waste gas treatment, in particular to a waste gas treatment device for a waste aluminum recovery smelting furnace, which comprises a device body, a spraying box and a sedimentation tank are arranged in the device body, a smoke inlet pipe is communicated with the lower end of the left side of the spraying box, a water purifying box is arranged at the upper end of the left side of the spraying box, and a water guide pipe is arranged on the inner side of the water purifying box. A drainage pipe is arranged on the right side of the bottom of the spraying box, the sedimentation tank is fixed to the lower end of the spraying box, a partition plate is arranged in the center of the sedimentation tank, a circulating pump is arranged on the left side of the sedimentation tank, and a water pumping pipe is connected between the circulating pump and the sedimentation tank; a circulating pipe is arranged at the upper end of the circulating pump, and the upper end of the circulating pipe is connected into the water purification tank, so that collection, precipitation and recycling of spraying waste liquid can be realized, resources can be conveniently saved, uniform dispersion and introduction of waste gas and all-directional spraying operation can be realized, and the spraying efficiency is improved. Secondary adsorption filtration of waste gas and convenient disassembly and replacement of filter cotton can be realized.

Description

Technical Field

[0001] The utility model relates to the field of waste gas treatment, in particular to a waste gas treatment device for a waste aluminum recovery furnace. Background Art

[0002] Common methods for treating waste gas by gas treatment devices include adsorption, absorption, catalytic combustion, thermal combustion, etc. When selecting a purification method, the county should select a method with low cost, low energy consumption and no secondary pollution according to the specific situation. The waste aluminum recycling process needs to melt the waste aluminum. The waste aluminum in the melting process will produce a large amount of waste gas, which contains a large amount of volatile organic compounds. Direct discharge will cause environmental pollution, and the waste gas needs to be treated before discharge;

[0003] In the prior art, a utility model patent with publication number CN 212870795 U proposes a waste gas treatment device for a waste aluminum recovery furnace. The device achieves a preliminary treatment effect by setting a filter bin, preliminarily filters the particulate matter in the waste gas to prepare for the next step, and further achieves a chemical filtration effect by setting a treatment chamber to remove fine particles soluble in water, thereby achieving a more thorough treatment; however, the device directly passes the waste gas into the water, which may easily lead to incomplete contact between part of the waste gas and the water, affecting its treatment effect. The device does not have the ability to recycle and utilize the treated water, cannot effectively save resources and reduce costs, and reduces the practicality of the device. At the same time, the device does not have the ability to quickly disassemble and replace the filter net inside the device, and the later inspection and maintenance are not convenient enough. Therefore, we need to upgrade and transform the existing technology to overcome the existing problems and shortcomings. Utility Model Content

[0004] The purpose of the utility model is to provide a waste gas treatment device for a waste aluminum recovery furnace to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A waste gas treatment device for a scrap aluminum recovery furnace is designed, comprising a device body, wherein the device body contains a spray box and a sedimentation tank, a smoke inlet pipe is connected to the lower left end of the spray box, a clean water tank is provided at the upper left end of the spray box, and a water guide pipe is provided inside the clean water tank, an atomizing nozzle is provided at the lower end of the water guide pipe, a drain pipe is provided on the right side of the bottom of the spray box, the sedimentation tank is fixed at the lower end of the spray box and a partition plate is provided at the center, a circulating pump is provided on the left side of the sedimentation tank and a suction pipe is connected between the circulating pump and the sedimentation tank, a circulating pipe is provided at the upper end of the circulating pump and the upper end of the circulating pipe is connected to the clean water tank, a smoke exhaust pipe is provided on the top of the spray box, a mounting frame is installed on the upper end of the smoke exhaust pipe and filter cotton is provided in the mounting frame.

[0007] Furthermore, the smoke inlet pipe is provided with a plurality of dispersion pipes inside the spray box, and the dispersion pipes are arranged in a plurality of groups transversely.

[0008] Furthermore, the water conduit is in an annular structure and is located at the center of the spray box, and the atomizing nozzles are arranged in a ring shape in several groups.

[0009] Furthermore, a support plate is provided at the lower end of the circulation pump, and the support plate is fixed on the outer wall of the sedimentation tank.

[0010] Furthermore, four groups of side blocks are provided at the lower end of the smoke exhaust pipe, and fixing bolts are connected between the side blocks and the spray box.

[0011] Furthermore, a mounting opening is provided at the upper end of the smoke exhaust pipe and a limiting sliding groove is connected to one side of the mounting opening. A limiting sliding block is provided at the lower end of the mounting frame and the limiting sliding block is slidably located in the limiting sliding groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is equipped with a drainage pipe, a sedimentation tank, a partition plate, a circulation pump, a support plate, a pumping pipe and a circulation pipe in the device, which can realize the collection, precipitation and recycling of the spray waste liquid, save resources, reduce the cost of waste gas treatment, and avoid the problem of waste water discharge leading to waste of resources and the need for purification treatment.

[0014] 2. The utility model is equipped with a smoke inlet pipe, a dispersion pipe, a clean water tank, a water guide pipe and an atomizing nozzle in the device, which can realize the uniform dispersion of the exhaust gas and the all-round spraying operation of the spray liquid, thereby facilitating the increase of the contact surface between the exhaust gas and the spray liquid, improving the exhaust gas treatment quality, and avoiding the problem of incomplete exhaust gas spraying.

[0015] 3. The utility model is equipped with a smoke exhaust pipe, side blocks, fixing bolts, mounting openings, limit slide grooves, mounting frames, limit sliders and filter cotton in the device, which can realize secondary adsorption and filtration of exhaust gas and convenient disassembly and replacement of filter cotton. It has a simple structure and is easy to operate, avoids the problem of incomplete exhaust gas treatment, and improves the quality of exhaust gas.

[0016] With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications and equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of a waste gas treatment device for a waste aluminum recovery furnace according to the utility model;

[0019] Figure 2 A cross-sectional view of the internal structure of a waste gas treatment device for a waste aluminum recovery furnace according to the utility model;

[0020] Figure 3 A cross-sectional view of the spray box structure of an exhaust gas treatment device for a waste aluminum recovery furnace according to the utility model;

[0021] Figure 4 The utility model is a structural exploded view of a smoke exhaust pipe of a waste gas treatment device for a waste aluminum recovery furnace.

[0022] In the figure: 1. Device body; 2. Spray box; 3. Smoke inlet pipe; 31. Dispersion pipe; 4. Clean water tank; 5. Water guide pipe; 6. Atomizing nozzle; 7. Drain pipe; 8. Sedimentation tank;

[0023] 9. Partition plate; 10. Circulation pump; 101. Support plate; 11. Suction pipe; 12. Circulation pipe; 13. Smoke exhaust pipe; 14. Side block; 15. Fixing bolt; 16. Mounting port; 17. Limiting slide groove; 18. Mounting frame; 19. Limiting slider; 20. Filter cotton. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1As shown in Figure 4, the present embodiment provides a waste gas treatment device for a waste aluminum recovery furnace, including a device body 1, which includes a spray box 2 and a sedimentation tank 8. A smoke inlet pipe 3 is connected to the lower left end of the spray box 2, a clean water tank 4 is provided at the upper left end of the spray box 2, and a water guide pipe 5 is provided inside the clean water tank 4, and an atomizing nozzle 6 is provided at the lower end of the water guide pipe 5. A drain pipe 7 is provided on the right side of the bottom of the spray box 2. The sedimentation tank 8 is fixed at the lower end of the spray box 2 and a partition plate 9 is provided in the center. The left side of the sedimentation tank 8 is provided with a There is a circulation pump 10 and a suction pipe 11 is connected between the circulation pump 10 and the sedimentation tank 8. A support plate 101 is provided at the lower end of the circulation pump 10, and the support plate 101 is fixed on the outer wall of the sedimentation tank 8. The support plate 101 is used to support and install the circulation pump 10. A circulation pipe 12 is provided at the upper end of the circulation pump 10 and the upper end of the circulation pipe 12 is connected to the clean water tank 4. A smoke exhaust pipe 13 is provided on the top of the spray box 2. A mounting frame 18 is installed on the upper end of the smoke exhaust pipe 13 and filter cotton 20 is provided in the mounting frame 18.

[0026] Preferably, the smoke inlet pipe 3 is located inside the spray box 2 and is provided with a plurality of dispersion pipes 31. The dispersion pipes 31 are arranged in a plurality of groups transversely. Through the plurality of dispersion pipes 31 arranged transversely, the exhaust gas can be evenly blown into the spray box 2. The water guide pipe 5 is annular in structure and is located at the center of the spray box 2. The atomizing nozzles 6 are arranged in a plurality of groups in a ring shape. Through the annular water guide pipe 5 and the plurality of atomizing nozzles 6, the contact area between the water flow and the exhaust gas can be increased.

[0027] Preferably, four groups of side blocks 14 are provided at the lower end of the smoke exhaust chimney 13, and fixing bolts 15 are connected between the side blocks 14 and the spray box 2. The smoke exhaust chimney 13 can be easily disassembled and fixed through the side blocks 14 and the fixing bolts 15. A mounting opening 16 is provided at the upper end of the smoke exhaust chimney 13, and a limiting slide groove 17 is connected to one side of the mounting opening 16. A limiting slider 19 is provided at the lower end of the mounting frame 18, and the limiting slider 19 slides in the limiting slide groove 17. The limiting slider 19 corresponds to the mounting opening 16, and the mounting frame 18 can be conveniently plugged into the upper end of the smoke exhaust chimney 13. The limiting slide groove 17 can be used to limit the rotation of the mounting frame 18 and the limiting slider 19 to prevent them from detaching from the smoke exhaust chimney 13.

[0028] The use principle and use process of the utility model are as follows: when in use, first connect the smoke inlet pipe 3 to the external exhaust gas conduit, connect the clean water tank 4 to the external water source, then control the smoke inlet pipe 3 to discharge the smoke into the spray box 2 through the dispersion pipe 31, spray the neutralizing liquid through the water pipe 5 and the atomizing nozzle 6 and sprinkle it on the exhaust gas, so that the water-soluble harmful substances or particulates in the exhaust gas contact and bring them to the bottom of the spray box 2, and the waste liquid is discharged into the lower end sedimentation tank 8 through the drain pipe 7. The waste liquid is located on the right side of the partition plate 9 for sedimentation. When the waste liquid height exceeds the partition plate 9, part of the waste liquid will flow to the left side of the sedimentation tank 8. On the other side, the precipitated waste liquid is extracted by the circulation pump 10 and pumped back into the clean water tank 4, and then re-sprayed into the spray box 2 through the atomizing nozzle 6. The gas inside the spray box 2 sprayed with the neutralizing liquid rises to the smoke exhaust pipe 13, and the waste gas is adsorbed and filtered again by the filter cotton 20 inside the installation frame 18, and then the waste gas is discharged. When the filter cotton 20 needs to be replaced, the installation frame 18 can be rotated to make the limiting slider 19 rotate in the limiting slide groove 17 and move to the lower end of the installation port 16. At this time, the installation frame 18 can be pulled upward.

[0029] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

Claims

1. An exhaust gas treatment device for a waste aluminum recovery furnace, characterized in that: The invention comprises a device body (1), wherein the device body (1) contains a spray box (2) and a sedimentation tank (8), wherein a smoke inlet pipe (3) is connected to the lower left end of the spray box (2), a clean water tank (4) is provided at the upper left end of the spray box (2), and a water guide pipe (5) is provided inside the clean water tank (4), and an atomizing nozzle (6) is provided at the lower end of the water guide pipe (5), a drain pipe (7) is provided at the right side of the bottom of the spray box (2), and the sedimentation tank (8) is fixed at the lower end of the spray box (2) and in the middle A partition plate (9) is provided at the center of the spray tank (2); a circulation pump (10) is provided on the left side of the sedimentation tank (8); a water pump (11) is connected between the circulation pump (10) and the sedimentation tank (8); a circulation pipe (12) is provided at the upper end of the circulation pump (10); and the upper end of the circulation pipe (12) is connected to the clean water tank (4); a smoke exhaust pipe (13) is provided at the top of the spray tank (2); a mounting frame (18) is installed at the upper end of the smoke exhaust pipe (13); and filter cotton (20) is provided in the mounting frame (18).

2. The waste gas treatment device for a waste aluminum recovery furnace according to claim 1 is characterized in that: The smoke inlet pipe (3) is located inside the spray box (2) and is provided with a plurality of dispersion pipes (31), and the dispersion pipes (31) are arranged in a plurality of groups in a transverse direction.

3. The waste gas treatment device for a waste aluminum recovery furnace according to claim 1 is characterized in that: The water guide pipe (5) is in an annular structure and is located at the center of the spray box (2). The atomizing nozzles (6) are arranged in a ring shape in a plurality of groups.

4. The waste gas treatment device for a waste aluminum recovery furnace according to claim 1 is characterized in that: A support plate (101) is provided at the lower end of the circulation pump (10), and the support plate (101) is fixed on the outer wall of the sedimentation tank (8).

5. The waste gas treatment device for a waste aluminum recovery furnace according to claim 1 is characterized in that: The lower end of the smoke exhaust pipe (13) is provided with four groups of side blocks (14), and fixing bolts (15) are connected between the side blocks (14) and the spray box (2).

6. The waste gas treatment device for a waste aluminum recovery furnace according to claim 1, characterized in that: The smoke exhaust pipe (13) has an installation opening (16) at the upper end and one side of the installation opening (16) is connected to a limiting slide groove (17). The installation frame (18) has a limiting slide block (19) at the lower end and the limiting slide block (19) is slidably located in the limiting slide groove (17).

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