Self-cleaning type dust removal device suitable for sintering plant

Abstract

A self-cleaning type dust removal device suitable for a sintering plant comprises a dust removal box and a water tank, and the dust removal box is arranged on the water tank; the dust removal box is externally connected with an air inlet pipe and an air outlet pipe, and a dust removal net is slidably arranged in the dust removal box; the dust removal net is divided into two net pieces, and the net pieces are connected through a partition plate; a water baffle is arranged on the water tank, a water pump is arranged in the water tank, and a water inlet pipe is connected to the water pump; a cleaning pipe is arranged on the water baffle and connected with the water inlet pipe, and the cleaning pipe and the dust removal net are oppositely arranged. The dust removal net is slidably arranged in the dust removal box through the replacement box, and the purpose of rapidly replacing the net pieces can be achieved by sliding the dust removal net; a cleaning pipe and a photoelectric sensor are arranged on the water baffle, the photoelectric sensor plays a role in sensing the dust removal net, and the dust removal net sheet is cleaned through the cleaning pipe; the dust removal net in the dust removal box can be automatically replaced, the replaced dust removal net can be automatically cleaned, the dust removal equipment still works normally in the process, and the dust removal efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal and cleaning, in particular to a self-cleaning dust removal device suitable for a sintering plant. Background Art

[0002] Sintering is a traditional process that is used to produce ceramics, powder metallurgy, etc. Generally speaking, after the powder is formed, the dense body obtained by sintering is a polycrystalline material whose microstructure is composed of crystals, glass and pores. The sintering process directly affects the grain size, pore size and grain boundary shape and distribution in the microstructure, which in turn affects the performance of the material. Existing sintering devices will generate a large amount of smoke and dust when in use, and they will be discharged into the air along with the gas, which will not only pollute the air, but also accumulate in the space of the sintering plant to form dust. If the dust concentration exceeds the explosion limit without treatment, it will explode once it is triggered by sparks, hot spots, etc. Therefore, sintering plants are usually equipped with dust removal devices to remove dust from the flue gas before discharging it.

[0003] There are two main types of dust removal methods: wet and dry. Wet dust removal uses water or water mist to make dust particles absorb water and then settle; dry dust removal uses the filtering effect of dust removal nets and other structures to block and filter dust in the flue gas. Among them, for equipment using dry dust removal, the dust removal net must be cleaned or replaced frequently during use. During the cleaning or replacement process, the old dust removal net needs to be disassembled and then cleaned. The steps are cumbersome, time-consuming and labor-intensive. In addition, when the dust removal net is removed, the dust removal equipment will stop working, thereby affecting the normal dust removal work.

[0004] The Chinese patent application number CN201621448493.6 and the patent document named "A sintering dust removal environmental protection device" discloses a technical solution. By setting a water tank, an exhaust fan, a water pump, a filter, an activated carbon filter layer, a dust filter layer and a nozzle, the problem of dust pollution to the environment is solved. However, when the device is in use, the filter plate needs to be replaced regularly. At the same time, the dirt on the filter plate is not easy to clean, which not only increases labor costs, but also affects the operation of the dust removal equipment.

[0005] Therefore, a dust removal device is needed that can replace filtering devices such as dust removal nets without affecting the normal dust removal work. Utility Model Content

[0006] The utility model aims to provide a self-cleaning dust removal device suitable for sintering plants, which can automatically replace and clean the dust removal net without affecting the normal operation of the dust removal equipment, thereby improving the dust removal efficiency and reducing the loss of manpower.

[0007] The purpose of the utility model is to solve the following technical solutions:

[0008] A self-cleaning dust removal device suitable for a sintering plant, characterized in that: it comprises a dust removal box, a replacement box and a water tank, the dust removal box is arranged on the water tank, and the replacement box is fixedly connected to the dust removal box; the dust removal box is externally connected to an air inlet duct and an air outlet duct, and a dust removal net is slidably arranged inside the dust removal box; the dust removal net is divided into two meshes, and the meshes are connected by a partition, and the dust removal net and the air inlet duct and the air outlet duct are relatively vertical; the replacement box is provided with a motor, and a screw rod is fixedly connected to the output shaft of the motor, and the screw rod is arranged inside the replacement box; a movable plate is threadedly connected to the screw rod; a guide groove is opened at the bottom of the replacement box, and the guide groove is connected to the inside of the dust removal box; a connecting rod is fixed on the movable plate, and the connecting rod is fixed to the partition through the guide groove.

[0009] The above-mentioned self-cleaning dust removal device is suitable for sintering plants. The water tank is provided with a water baffle and a water pump is provided in the water tank; the water pump is connected to a water inlet pipe; a cleaning pipe is provided on the water baffle, and the cleaning pipe is connected to the water inlet pipe, and the cleaning pipe is arranged relative to the dust removal net.

[0010] The self-cleaning dust removal device suitable for sintering plants has sealing grooves on both sides of the dust removal box, and sealing blocks are fixedly provided at both ends of the dust removal net, and the sealing blocks are fitted with the sealing grooves on four sides.

[0011] The above-mentioned self-cleaning dust removal device suitable for a sintering plant has a fixed plate arranged in the water tank, a filter membrane arranged on the fixed plate, and a hydrophobic hole opened in the fixed plate.

[0012] The above-mentioned self-cleaning dust removal device is suitable for a sintering plant, and a photoelectric sensor is arranged on the water retaining plate.

[0013] The above-mentioned self-cleaning dust removal device is suitable for a sintering plant, and an electric control valve is provided on the water inlet pipe. Beneficial Effects

[0014] In the utility model, the dust removal net is composed of two mesh pieces, and are slidably arranged in the dust removal box through a replacement box. The replacement box is provided with a motor to control the movement of the dust removal net without additional manpower operation; the two mesh pieces of the dust removal net work in turn in the dust removal box, therefore, the mesh pieces of the dust removal net can be quickly replaced through the replacement box, and the operation of the dust removal box will not be affected when the dust removal net is replaced.

[0015] When the dust net is moved out of the dust removal box, a photoelectric sensor is provided on the water retaining plate to sense the dust net, and the water pump provided inside the water tank and the corresponding electric control valve on the water inlet pipe are activated to clean the mesh of the dust net, thereby achieving the purpose of automatically cleaning the dust net. The utility model can automatically replace the dust net in the dust removal box and can automatically clean the replaced dust net, and the dust removal equipment can still work normally during this process, thereby improving the efficiency of dust removal and reducing the loss of manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 The internal structure diagram of the replacement box and dust removal net;

[0018] Figure 3 This is a schematic diagram of the water tank structure;

[0019] Figure 4 This is a cross-sectional view of the water tank structure.

[0020] 1. Water tank; 2. Water baffle; 3. Sealing block; 4. Air inlet pipe; 5. Cleaning pipe; 6. Dust removal box; 7. Dust removal net; 8. Replacement box; 9. Sealing groove; 10. Air outlet pipe; 12. Photoelectric sensor; 13. Filter membrane; 14. Motor; 15. Moving plate; 16. Screw rod; 17. Partition; 18. Connecting rod; 19. Guide groove; 20. Water inlet pipe; 21. Electric control valve; 22. Water pump; 23. Drain hole; 24. Fixed plate. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings.

[0022] See also Figure 1 , including a dust removal box 6, one side of the dust removal box 6 is connected to an air inlet pipe 4, and the other side is connected to an air outlet pipe 10, and a dust removal net 7 is arranged in the dust removal box 6, and the dust removal net 7 and the air inlet pipe 4 and the air outlet pipe 10 are in a relatively vertical state; the dust removal net 7 includes two meshes, the two meshes are connected by a partition 17, and the dust removal net 7 is slidably arranged in the dust removal box 6, and the two meshes of the dust removal net 7 take turns to have a dust removal effect in the dust removal box 6; a water tank 1 is fixedly arranged at the bottom of the dust removal box 6, and a water baffle 2 is fixedly connected to the water tank 1, and the water baffle 2 is arranged on both sides of the dust removal net 7; a water pump 22 is arranged in the water tank 1, and the working end of the water pump 22 is connected to a water inlet pipe 20; two groups of cleaning pipes 5 connected to the water inlet pipe 20 are arranged on the water baffle 2, and the cleaning pipes 5 are arranged corresponding to the mesh of the dust removal net 7.

[0023] The sliding dust removal net 7 plays a role in quickly replacing the net, thereby improving the replacement and use efficiency of the dust removal net 7, and the normal dust removal work of the dust removal box 6 will not be affected when the net is replaced.

[0024] See also Figure 2 The dust removal box 6 is fixedly provided with a replacement box 8, and a motor 14 is provided on one side of the replacement box 8; a screw rod 16 is fixedly connected to the output shaft of the motor 14, and the screw rod 16 crosses the interior of the replacement box 8, and a movable plate 15 is threadedly connected to the screw rod 16. A guide groove 19 communicating with the interior of the dust removal box 6 is provided at the bottom of the replacement box 8, and a connecting rod 18 fixedly connected to the movable plate 15 is provided in the guide groove 19; and the connecting rod 18 is fixedly connected to the partition 17.

[0025] The setting of the movable plate 15 converts the rotation of the screw rod 16 into the movement of the movable plate 15, and transmits the movement to the partition plate 17 through the connecting rod 18, thereby driving the dust removal net 7 to slide. The setting of the guide groove 19 and the connecting rod 18 can limit the movement of the movable plate 15.

[0026] See also Figure 3 A photoelectric sensor 12 is provided on the water baffle 2, and a solenoid valve 21 is provided on the water inlet pipe 20. When the photoelectric sensor 12 senses the removal of the dust net 7 from the dust removal box, the water pump 22 is started, and the solenoid valve 21 is opened at the same time, and the water in the water tank passes through the water inlet pipe 20 and is sprayed out from the cleaning pipe 5 to clean the sensed dust net 7. Two groups of solenoid valves 21 are provided, which are respectively provided on the water inlet pipes 21 on both sides.

[0027] The photoelectric sensor 12 can sense the dust removal net 7 , thereby automatically starting the water pump 22 and the corresponding electric control valve 21 to clean the dust removal net 7 , thereby achieving the effect of automatically cleaning the dust removal net 7 .

[0028] See also Figure 4 A fixed plate 24 is arranged in the water tank 1, a filter membrane 13 is arranged on the fixed plate 24, and a hydrophobic hole 23 is opened on the fixed plate 24. The filter membrane 13 can filter the cleaned waste water, which is convenient for recycling the waste water and avoiding the waste of water resources.

[0029] The dust removal box 6 is provided with sealing grooves 9 on both sides, and the two ends of the dust removal net 7 are fixedly connected with sealing blocks 3 corresponding to the sealing grooves 9. Elastic rubber strips are provided around the sealing blocks 3 and the partition 17 to increase the fit with the sealing grooves 9. After sliding and replacing the dust removal net, the sealing of the dust removal box can be increased to prevent the smoke and dust in the dust removal box from leaking, achieving a good dust removal effect. Moreover, the device can be freely changed according to the place where the dust is to be removed, without the need for cumbersome disassembly work.

[0030] The working principle of the utility model is:

[0031] When the device is used for work and the dust screen 7 needs to be replaced, the motor 14 is directly started to slide the partition 17 driven by the movable plate 15 and the connecting rod 18, so that the dust screen 7 originally located in the dust box 6 is slid out of the dust box 6, and the clean screen slides into the dust box 6 to complete the replacement of the screen.

[0032] After the dust removal net 7 is replaced, it is sensed by the photoelectric sensor 12, and the water pump 22 is started, and the corresponding electric control valve 21 is controlled to open; the water in the water tank 1 enters the water inlet pipe 20, and is finally sprayed out from the cleaning pipe 5 to clean the replaced dust removal net 7. When the amount of dust accumulated on the dust removal net 7 entering the dust removal box 6 gradually increases and needs to be replaced, the motor 14 can be reversed, and the cycle is repeated. The cleaned wastewater passes through the hydrophobic hole 23 under the filtering action of the filter membrane 13 and enters the bottom of the water tank 1, and re-participates in the circulation to avoid the waste of water resources.

Claims

1. A self-cleaning dust removal device suitable for a sintering plant, characterized in that: The invention comprises a dust removal box (6), a replacement box (8) and a water tank (1); the dust removal box (6) is arranged on the water tank (1); the replacement box (8) is fixedly connected to the dust removal box (6); the dust removal box (6) is externally connected to an air inlet pipe (4) and an air outlet pipe (10); a dust removal net (7) is slidably arranged in the dust removal box (6); the dust removal net (7) is divided into two meshes, and the meshes are connected by a partition (17); the dust removal net (7) and the air inlet pipe (4) and the air outlet pipe (10) are relatively vertical; the replacement box (8) ) is provided with a motor (14), the output shaft of the motor (14) is fixedly connected to a screw rod (16), and the screw rod (16) is arranged inside the replacement box (8); a movable plate (15) is threadedly connected to the screw rod (16); a guide groove (19) is provided at the bottom of the replacement box (8), and the guide groove (19) is connected to the inside of the dust removal box (6); a connecting rod (18) is fixed to the movable plate (15), and the connecting rod (18) is fixed to the partition plate (17) through the guide groove (19).

2. The self-cleaning dust removal device suitable for a sintering plant according to claim 1 is characterized in that: The water tank (1) is provided with a water baffle (2), and a water pump (22) is provided in the water tank (1); the water pump (22) is connected to a water inlet pipe (20); a cleaning pipe (5) is provided on the water baffle (2), and the cleaning pipe (5) is connected to the water inlet pipe (20); the cleaning pipe (5) and the dust removal net (7) are arranged in a relative position.

3. The self-cleaning dust removal device suitable for a sintering plant according to claim 1 is characterized in that: Sealing grooves (9) are respectively provided on both sides of the dust removal box (6), and sealing blocks (3) are fixedly provided on both ends of the dust removal net (7), and the sealing blocks (3) are in contact with the sealing grooves (9) on four sides.

4. The self-cleaning dust removal device suitable for a sintering plant according to claim 1 is characterized in that: A fixing plate (24) is arranged in the water tank (1), a filter membrane (13) is arranged on the fixing plate (24), and a hydrophobic hole (23) is opened in the fixing plate (24).

5. The self-cleaning dust removal device suitable for a sintering plant according to claim 2 is characterized in that: A photoelectric sensor (12) is provided on the water baffle (2).

6. The self-cleaning dust removal device suitable for a sintering plant according to claim 2 is characterized in that: The water inlet pipe (20) is provided with an electric control valve (21).

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