A device for treating flue gas from zinc metal recovery

Abstract

The utility model relates to a kind of metal zinc recovery flue gas treatment device, belong to flue gas treatment technical field, the metal zinc recovery flue gas treatment device, including processing tank and the controller of fixed connection in the outer surface of processing tank, the bottom of the processing tank is fixedly connected with deslagging pipe, the deslagging pipe is sealed and is attached with conveying roller, the bottom of the conveying roller is fixedly connected with sealing plate, the bottom of the deslagging pipe is equipped with deslagging port, the sealing plate is sealed and is attached with deslagging port, the sidewall of the processing tank is fixedly connected with inlet pipe and is penetrated with gas pipe. The utility model is through the cooperation of transmission shaft, conveying roller, sealing plate and deslagging port, when filtering and cooling flue gas, transmission shaft will drive conveying roller and sealing plate to rotate, and then make deslagging port intermittent opening, so that conveying roller can filter down the particulate matter through deslagging port and discharge, while avoiding flue gas through deslagging port and discharge to outside environment, realize automatic deslagging function.

Description

Technical Field

[0001] This utility model belongs to the field of flue gas treatment technology, specifically relating to a flue gas treatment device for zinc recovery. Background Technology

[0002] The flue gas generated during the zinc recycling process (mainly from the smelting and refining of waste zinc) contains a variety of harmful substances, such as zinc oxide dust, chlorine, hydrogen fluoride, sulfur dioxide, heavy metal vapors (lead, cadmium, etc.) and carbon monoxide. These flue gases must be treated strictly and efficiently to meet emission standards; otherwise, they will cause serious environmental pollution and health hazards.

[0003] Currently, the flue gas generated during the zinc recycling process contains a large amount of dust and has a high temperature. The existing treatment method is to cool the flue gas first before subsequent purification operations can be carried out. However, during dust removal, the dust in the flue gas will adhere to the dust removal equipment, requiring the equipment to be shut down for cleaning, which affects the efficiency of flue gas treatment. Based on this, a zinc recycling flue gas treatment device is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a simple and reasonably designed zinc recovery flue gas treatment device to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A zinc recovery flue gas treatment device includes a treatment tank and a controller fixedly connected to the outer surface of the treatment tank. A slag discharge pipe is fixedly connected to the bottom of the treatment tank. A conveying roller is sealed and fitted inside the slag discharge pipe. A sealing plate is fixedly connected to the bottom of the conveying roller. A slag discharge port is opened at the bottom of the slag discharge pipe. The sealing plate is sealed and fitted to the slag discharge port. An ash collection mechanism is installed inside the treatment tank. A spraying mechanism is installed inside the treatment tank and is located above the ash collection mechanism. An air inlet pipe is fixedly connected through the side wall of the treatment tank.

[0007] As a further optimization of this utility model, the portion of the air inlet pipe located inside the processing tank is configured as an annular shape, and an air inlet is provided at the bottom of the annular portion of the air inlet pipe.

[0008] As a further optimization of this utility model, the spraying mechanism includes a motor fixedly connected to the top of the treatment tank, a rotating shaft fixedly connected to the output end of the motor, a spraying frame fixedly connected to the outer surface of the rotating shaft, the spraying frame being rotatably and sealingly connected to the inner surface of the treatment tank, a water spraying hole being opened at the bottom of the spraying frame, a water pump fixedly connected to the outer surface of the treatment tank, the water pump being internally connected to the spraying frame, and the bottom of the rotating shaft being connected to the ash collection mechanism through a transmission component.

[0009] As a further optimization of this utility model, the ash collection mechanism includes a drive shaft rotatably connected to the bottom of the slag discharge pipe, a conveying roller fixedly connected to the outer surface of the drive shaft, and a mesh blade fixedly connected to the outer surface of the drive shaft, the mesh blade being located above the air inlet pipe.

[0010] As a further optimization of this utility model, the transmission assembly includes a gearbox fixedly connected to the inner surface of the processing tank, a first bevel gear fixedly connected to the bottom of the rotating shaft, a transmission bevel gear rotatably connected inside the gearbox, and a second bevel gear fixedly connected to the top of the transmission shaft. Both the first bevel gear and the second bevel gear mesh with the transmission bevel gear.

[0011] As a further optimization of this utility model, an air pump is fixedly connected to the top of the processing tank, and an exhaust pipe is fixedly connected to the top of the air pump.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model utilizes a drive shaft, conveying rollers, sealing plate, and slag discharge port in combination. During the filtration and cooling of flue gas, the drive shaft drives the conveying rollers and sealing plate to rotate, thereby causing the slag discharge port to open intermittently. This allows the conveying rollers to discharge the filtered particles through the slag discharge port, while preventing the flue gas from being discharged into the external environment through the slag discharge port, thus achieving an automatic slag discharge function.

[0014] 2. This utility model utilizes the combined use of a spraying mechanism and an ash-collecting mechanism. When the spraying mechanism rotates to spray water mist, the ash-collecting mechanism will rotate under the action of the transmission component. At this time, the rotation direction of the ash-collecting mechanism is opposite to that of the spraying mechanism, which allows the sprayed water mist to cover a larger area and to mix better with the flue gas. It also ensures that the sprayed water mist completely covers the mesh blades, allowing the mesh blades to capture more particles. Furthermore, the particles captured on the mesh blades can be detached from the mesh blades under the scouring action of the water mist, thereby improving the filtration and cooling efficiency of the flue gas. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall frontal three-dimensional structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall three-dimensional structure of this utility model from a bottom view;

[0017] Figure 3 This is a three-dimensional partial cross-sectional structural diagram of this utility model;

[0018] Figure 4 This is a three-dimensional partial cross-sectional structural diagram of the gearbox of this utility model;

[0019] Figure 5 This is a schematic diagram of the conveyor roller structure of this utility model.

[0020] In the diagram: 1. Processing tank; 2. Controller; 3. Slag discharge pipe; 4. Slag discharge port; 5. Air inlet pipe; 6. Air pump; 7. Exhaust pipe; 8. Air inlet; 9. Motor; 10. Rotating shaft; 11. Spray frame; 12. Sealing plate; 13. Water pump; 14. Water spray hole; 15. Gearbox; 16. First bevel gear; 17. Transmission bevel gear; 18. Second bevel gear; 19. Transmission shaft; 20. Mesh blades; 21. Conveying roller. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] Example: Figure 1 , Figure 2 and Figure 3 As shown, a zinc recovery flue gas treatment device includes a treatment tank 1 and a controller 2 fixedly connected to the outer surface of the treatment tank 1. An air pump 6 is fixedly connected to the top of the treatment tank 1, and an exhaust pipe 7 is fixedly connected to the top of the air pump 6. A slag discharge pipe 3 is fixedly connected to the bottom of the treatment tank 1, and a slag discharge port 4 is opened at the bottom of the slag discharge pipe 3. An ash-collecting mechanism and a spraying mechanism are installed inside the treatment tank 1, with the spraying mechanism located above the ash-collecting mechanism. The spraying mechanism includes a motor 9 fixedly connected to the top of the treatment tank 1, a rotating shaft 10 fixedly connected to the output end of the motor 9, and a spray frame 11 fixedly connected to the outer surface of the rotating shaft 10. The spray frame 11 is sealed to the inner surface of the treatment tank 1. The bottom of the spray frame 11 is provided with a water spray hole 14. The outer surface of the treatment tank 1 is fixedly connected to a water pipe that is fixedly connected to an external water source (the water pipe is existing technology and is not shown in the figure, so it will not be described in detail). The motor 9, water pump 13 and air pump 6 are electrically connected to the controller 2 and are controlled by the controller 2. They are connected to the inside of the spray frame 11. The bottom of the rotating shaft 10 is connected to the ash collection mechanism through a transmission component. The side wall of the treatment tank 1 is fixedly connected with an air inlet pipe 5. The part of the air inlet pipe 5 inside the treatment tank 1 is set as an annular shape. The bottom of the annular part of the air inlet pipe 5 is provided with an air inlet 8. The annular part of the air inlet pipe 5 can evenly inject flue gas into the treatment tank 1.

[0023] When in use, the air pump 6 and motor 9 are started, and the air inlet pipe 5 injects flue gas into the treatment tank 1 through the air inlet 8. The operation of the air pump 6 will inject clean water into the spray frame 11 and then spray it out through the water spray hole 14. During this process, the operation of motor 9 will drive the rotating shaft 10 to rotate, which in turn drives the spray frame 11 to rotate, so that the water spray hole 14 sprays water mist on various positions in the treatment tank 1, so that the water mist can better contact the flue gas, cool the flue gas, and cause the particulate matter in the flue gas to gather and settle. The operation of air pump 6 will send the cooled flue gas to the next purification process through exhaust pipe 7.

[0024] like Figure 3 , Figure 4 and Figure 5 As shown, the ash-collecting mechanism includes a drive shaft 19 rotatably connected to the bottom of the slag discharge pipe 3. A mesh blade 20 is fixedly connected to the outer surface of the drive shaft 19. The mesh blade 20 is located above the air inlet pipe 5. A conveying roller 21 is sealed and fitted inside the slag discharge pipe 3. The conveying roller 21 is fixedly connected to the outer surface of the drive shaft 19. A sealing plate 12 is fixedly connected to the bottom of the conveying roller 21. The sealing plate 12 is sealed and fitted to the slag discharge port 4. The transmission assembly includes a gearbox 15 fixedly connected to the inner surface of the treatment tank 1. The drive shaft 19 and the rotating shaft 10 both pass through the gearbox 15 and are rotatably connected to the gearbox 15. A first bevel gear 16 is fixedly connected to the bottom of the rotating shaft 10. A transmission bevel gear 17 is rotatably connected inside the gearbox 15. A second bevel gear 18 is fixedly connected to the top of the drive shaft 19. Both the first bevel gear 16 and the second bevel gear 18 mesh with the transmission bevel gear 17.

[0025] When the rotating shaft 10 rotates, it drives the first bevel gear 16 to rotate, which in turn drives the second bevel gear 18 to rotate in the opposite direction via the transmission bevel gear 17. This, in turn, causes the transmission shaft 19 to rotate in the opposite direction, resulting in the mesh blades 20 rotating in the opposite direction. The rotation of the mesh blades 20 allows them to better contact the flue gas, enabling particulate matter in the flue gas to better adhere to the outer surface of the mesh blades 20. Furthermore, since the rotating shaft 10 and the transmission shaft 19 rotate in opposite directions, the spray frame 11 rotates in the opposite direction to the mesh blades 20, allowing the water mist to completely cover the mesh blades 20, thereby... The particles captured on the mesh blades 20 can be gathered and fall under the scouring action of the water mist, which improves the filtration and cooling efficiency of the flue gas. The falling particles will fall to the bottom of the treatment tank 1. During this process, the rotation of the drive shaft 19 will also drive the conveying roller 21 and the sealing plate 12 to rotate, so that the sealing plate 12 intermittently opens the slag discharge port 4, allowing the conveying roller 21 to discharge the filtered particles through the slag discharge port 4. At the same time, it prevents the flue gas from being discharged into the external environment through the slag discharge port 4, realizing the automatic slag discharge function, protecting the external environment, and improving the treatment efficiency of the flue gas.

[0026] It should be noted that the models of controller 2, motor 9, and air pump 6 can be selected according to the actual needs of use.

[0027] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A zinc recovery flue gas treatment device, comprising a treatment tank (1) and a controller (2) fixedly connected to the outer surface of the treatment tank (1), characterized in that: The bottom of the treatment tank (1) is fixedly connected to a slag discharge pipe (3), a conveying roller (21) is sealed and fitted inside the slag discharge pipe (3), a sealing plate (12) is fixedly connected to the bottom of the conveying roller (21), a slag discharge port (4) is opened at the bottom of the slag discharge pipe (3), the sealing plate (12) is sealed and fitted to the slag discharge port (4), an ash collection mechanism is installed inside the treatment tank (1), a spraying mechanism is installed inside the treatment tank (1), and the spraying mechanism is located above the ash collection mechanism. An air inlet pipe (5) is fixedly connected through the side wall of the treatment tank (1).

2. The zinc recovery flue gas treatment device according to claim 1, characterized in that: The portion of the air inlet pipe (5) located inside the processing tank (1) is annular, and an air inlet (8) is provided at the bottom of the annular portion of the air inlet pipe (5).

3. The zinc recovery flue gas treatment device according to claim 1, characterized in that: The spraying mechanism includes a motor (9) fixedly connected to the top of the treatment tank (1), a rotating shaft (10) fixedly connected to the output end of the motor (9), a spray frame (11) fixedly connected to the outer surface of the rotating shaft (10), the spray frame (11) being sealed and rotatably connected to the inner surface of the treatment tank (1), a water spray hole (14) being opened at the bottom of the spray frame (1), a water pump (13) fixedly connected to the outer surface of the treatment tank (1), the water pump (13) being internally connected to the spray frame (11), and the bottom of the rotating shaft (10) being connected to the ash collection mechanism through a transmission component.

4. The zinc recovery flue gas treatment device according to claim 3, characterized in that: The ash-collecting mechanism includes a drive shaft (19) rotatably connected to the bottom of the slag discharge pipe (3), a conveying roller (21) fixedly connected to the outer surface of the drive shaft (19), and a mesh blade (20) fixedly connected to the outer surface of the drive shaft (19), the mesh blade (20) being located above the air inlet pipe (5).

5. The zinc recovery flue gas treatment device according to claim 4, characterized in that: The transmission assembly includes a gearbox (15) fixedly connected to the inner surface of the processing tank (1), a first bevel gear (16) fixedly connected to the bottom of the rotating shaft (10), a transmission bevel gear (17) rotatably connected inside the gearbox (15), and a second bevel gear (18) fixedly connected to the top of the transmission shaft (19). Both the first bevel gear (16) and the second bevel gear (18) mesh with the transmission bevel gear (17).

6. The zinc recovery flue gas treatment device according to claim 1, characterized in that: An air pump (6) is fixedly connected to the top of the processing tank (1), and an exhaust pipe (7) is fixedly connected to the top of the air pump (6).

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