Dust treatment device

Abstract

The utility model discloses a dust treatment device which comprises a filter box and a spraying box, the filter box is located on the left side of the spraying box, an air outlet in the right side wall of the filter box is connected with an air inlet in the left side wall of the spraying box through a guide pipe, and an air blower and an air inlet pipe are arranged on the left side of the filter box. An air inlet of the air blower is connected with a dust gas pipeline in a steel mill through an air inlet pipe, an air outlet of the air blower is communicated with the interior of the filter box, first filter cotton is arranged in the filter box, an exhaust pipe is arranged on the top of the spraying box, a spraying dust removal device is arranged on the middle lower portion of the spraying box, and a blow-down valve is arranged at the bottom of the spraying box. The first filter cotton, the spraying dust-removing device and other dust-removing devices are combined together, dust is removed through the multi-stage dust-removing device, the pollution influence of gas emission on the surrounding environment can be effectively reduced, the first filter cotton is very convenient to disassemble and assemble, the internal dust cleaning difficulty can be reduced, and the dust cleaning efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to a dust treatment device applicable to steel plants, belonging to the technical field of metallurgical equipment. Background Art

[0002] A large amount of dust is generated during the processes of iron ore selection, crushing, turning, transportation, etc. in steel plants, which not only endangers the health of employees, but also makes the maintenance of the production equipment system difficult. When directly discharged into the air, it will cause very serious environmental pollution. Therefore, a dust treatment device is needed for dust removal.

[0003] The utility model with the publication number CN215782497U discloses a dust treatment device for steel plants, including a first dust removal box and a second dust removal box. The first dust removal box and the second dust removal box are connected through a pipeline. A fixed plate is fixedly arranged inside the first dust removal box. The fixed plate divides the interior of the first dust removal box into upper and lower spaces. A dust removal plate is slidably arranged in the upper space inside the first dust removal box. At least one dust removal filter bag is arranged between the dust removal plate and the fixed plate. The upper part of the dust removal filter bag is fixedly arranged on the dust removal plate. The lower part of the dust removal filter bag passes through the fixed plate and is slidably connected with the fixed plate. The dust removal plate drives the dust removal filter bag above it to reciprocate axially along the fixed plate through an eccentric mechanism. However, the existing dust treatment device is not convenient for cleaning the dust deposited inside, the operation of cleaning the dust is complex, resulting in low cleaning efficiency; at the same time, it is not convenient to observe the deposition situation of the internal dust in real time, and it is impossible to accurately grasp the cleaning time. After internal blockage, it is often not cleaned in time, affecting the normal operation of the equipment. Therefore, it is necessary to improve it. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a dust treatment device aiming at the disadvantages of the existing technology, so as to reduce the difficulty of internal dust cleaning and improve the dust cleaning efficiency.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A dust treatment device includes a filtration box and a spray box. The filtration box is located on the left side of the spray box. The air outlet on the right side wall of the filtration box is connected to the air inlet on the left side wall of the spray box through a guiding pipe. A blower and an air inlet pipe are arranged on the left side of the filtration box. The air inlet of the blower is connected to the dust gas pipeline in the steel plant through the air inlet pipe. The air outlet of the blower is communicated with the inside of the filtration box. The inside of the filtration box is provided with a first filter cotton. The top of the spray box is provided with an exhaust pipe, the middle and lower parts are provided with a spray dust removal device, and the bottom is provided with a sewage discharge valve.

[0007] The above dust treatment device further includes a drying cotton. The top of the spray box is provided with a top cover, and a partition plate is arranged inside. The partition plate is located above the guiding pipe and divides the inner cavity of the spray box into upper and lower parts. A through hole is formed in the middle of the partition plate. The drying cotton is installed on the upper part of the partition plate, and the spray dust removal device is located below the partition plate.

[0008] In the above dust treatment device, the spray dust removal device includes a water pump, a limit frame, a second filter cotton, a spray ring and a plurality of nozzles. The water pump is installed on the side of the spray box. The spray ring is fixed inside the spray box and the top of the spray ring is close to the partition plate. The plurality of nozzles are evenly distributed along the spray ring. The water inlet pipe of the water pump extends to the bottom of the inner cavity of the spray box and is connected with the limit frame. The second filter cotton is installed in the limit frame. The water outlet pipe of the water pump extends into the spray box and is connected with the inner cavity of the spray ring.

[0009] In the above dust treatment device, both the filter box and the spray box are installed on the base plate, and the upper surface of the base plate is provided with installation grooves matching the filter box and the spray box.

[0010] In the above dust treatment device, the top of the filter box is provided with a detachable sealing cover. A side plate is provided on each side of the first filter cotton. The two side plates are symmetrically fixed on the inner sides of the front wall and the rear wall of the filter box. A vertical slot is formed in the middle of each side plate. The two sides of the first filter cotton are respectively inserted into the slots on the two side plates.

[0011] In the above dust treatment device, a rubber pad is provided at the bottom of the sealing cover; a sealing gasket is provided on the lower surface of the top cover.

[0012] In the above dust treatment device, two first filter cottons are provided, and the two first filter cottons are arranged in the left - right direction of the filter box.

[0013] In the above dust treatment device, the left end of the guiding pipe is higher than the right end.

[0014] In the above dust treatment device, an observation window is provided on the side wall of the spray box.

[0015] In the above dust treatment device, a water injection pipe is provided on the side wall of the spray box.

[0016] The utility model combines dust - reducing devices such as the first filter cotton and the spray dust removal device, and removes dust through a multi - stage dust - reducing device. It can not only effectively reduce the environmental pollution impact of gas emissions on the surrounding environment, but also the first filter cotton is very convenient to disassemble and install, which can reduce the difficulty of internal dust cleaning and improve the dust cleaning efficiency. Description of the Drawings

[0017] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.

[0018] Figure 1 is the overall structural schematic diagram of the present utility model;

[0019] Figure 2 is the structural schematic diagram of the base plate;

[0020] Figure 3 is the installation schematic diagram of the first filter cotton;

[0021] Figure 4 is the structural schematic diagram of the spray box;

[0022] Figure 5 is the explosion diagram of the spray box;

[0023] Figure 6 is the structural schematic diagram of the water pump and the spray ring;

[0024] Figure 7 is the cross-sectional view of the present utility model.

[0025] The reference numerals in the figure are as follows:

[0026] 1. Base plate; 10. Installation groove;

[0027] 2. Filter box; 20. Sealing cover; 200. Bolt hole; 201. Fastening bolt; 21. Guide pipe; 22. Screw hole; 23. Blower; 230. Air inlet pipe; 24. Side plate; 240. Slot; 241. First filter cotton;

[0028] 3. Spray box; 30. Top cover; 300. Exhaust pipe; 301. Sealing gasket; 31. Annular groove; 32. Observation window; 33. Discharge pipe; 330. Drain valve; 34. Water injection pipe; 35. Partition plate; 350. Through hole; 36. Drying cotton;

[0029] 4. Water pump; 40. Spray ring; 41. Nozzle; 42. Limit frame; 420. Second filter cotton. Specific embodiments

[0030] Please refer to Figures 1-7 , the present utility model includes a base plate 1, two installation grooves 10 are opened on the upper surface of the base plate 1, a filter box 2 is provided in one of the installation grooves 10, a spray box 3 is provided in the other installation groove 10, an air outlet on the right side wall of the filter box 2 is connected to an air inlet on the left side wall of the spray box 3 through a guide pipe 21, side plates 24 are symmetrically arranged on the inner sides of the front wall and the rear wall of the filter box 2, the side plates 24 are adhesively fixed to the inner wall of the filter box 2, vertical slots 240 are opened in the middle of the side plates 24, the first filter cotton 241 is in a cuboid shape, and both sides of the first filter cotton 241 are respectively inserted into the slots 240 in the middle of the side plates 24 on the front wall and the rear wall of the filter box 2, a sealing cover 20 is provided on the top of the filter box 2, and the side plates 24 are adhesively fixed to the inner wall of the filter box 2.

[0031] At each of the four corners of the sealing cover 20, there are bolt holes 200. Fastening bolts 201 are provided in the bolt holes 200. At the corresponding positions of the top of the filter box 2 to the bolt holes 200, screw holes 22 are opened. A rubber gasket is provided at the bottom of the sealing cover 20, and the periphery of the rubber gasket is adapted to the inner wall of the filter box 2.

[0032] The rubber gasket can increase the sealing performance between the sealing cover 20 and the filter box 2. The fastening bolts 201 pass through the bolt holes 200 and are threadedly connected to the screw holes 22, realizing the stable connection between the sealing cover 20 and the filter box 2.

[0033] On the left side of the filter box 2, there is a blower 23 and an air inlet pipe 230. The air inlet of the blower 23 is connected to the air inlet pipe 230, and the air outlet of the blower 23 is communicated with the inside of the filter box 2.

[0034] The blower 23 and the air inlet pipe 230 cooperate to continuously extract the dust gas in the steel plant from the pipeline and transport it to the filter box 2.

[0035] In the present utility model, two first filter cottons 241 are provided. Side plates 24 are provided on both sides of each first filter cotton 241. The two first filter cottons 241 filter the dust gas sent into the filter box 2 twice, and can effectively remove the particulate matter in the dust gas.

[0036] It should be noted that the left end of the guiding pipe 21 is higher than the right end. The top of the guiding pipe 21 is adhesively fixed to the filter box 2, and the right end of the guiding pipe 21 is adhesively fixed to the spraying box 3. The guiding pipe 21 is inclined to prevent the water vapor in the spraying box 3 from flowing back into the filter box 2 and reducing the influence of the water vapor on the preliminary filtration of the dust gas.

[0037] An annular groove 31 is opened near the top inside the side wall of the spraying box 3. A top cover 30 is provided on the top of the spraying box 3. An observation window 32 is provided on the front wall of the spraying box 3. A slag discharge pipe 33 is provided near the bottom edge of the front wall of the spraying box 3. A sewage discharge valve 330 is provided on the slag discharge pipe 33. The observation window 32 is adhesively fixed to the edge of the observation opening on the front wall of the spraying box 3.

[0038] Manually opening the sewage discharge valve 330 can discharge the circulating water absorbing dust inside the spraying box 3. The observation window 32 is made of tempered glass, which helps the external personnel to observe the internal condition of the spraying box 3 through the observation window 32.

[0039] A partition plate 35 is provided in the annular groove 31. A through hole 350 is opened in the middle of the partition plate 35. A drying cotton 36 is provided above the partition plate 35. The length and width of the top cover 30 are the same as those of the spraying box 3. A sealing gasket 301 is provided on the lower surface of the top cover 30. The periphery of the sealing gasket 301 is adapted to the inner wall of the spraying box 3. An exhaust pipe 300 is provided on the top of the top cover 30. A water injection pipe 34 is provided near the top of the right side wall of the spraying box 3.

[0040] The partition plate 35 is used to partition the spray box 3, and cooperate with the drying cotton 36 to dry and filter the gas before discharge, avoiding the influence on the surrounding environment caused by the large amount of water vapor discharged. The gasket 301 helps to increase the connection stability between the top cover 30 and the spray box 3. And the partition plate 35 is inserted and matched with the annular groove 31. The main function of the through hole 350 is to ventilate, and at the same time it is convenient to take out and replace the partition plate 35.

[0041] A water pump 4 is arranged on the right side of the spray box 3, and the water pump 4 is fixedly connected to the base plate 1 through screws. The water inlet pipe of the water pump 4 extends to the bottom of the inner cavity of the spray box 3 and is connected to the limit frame 42. A second filter cotton 420 is arranged in the limit frame 42; the water outlet pipe of the water pump 4 extends to the middle position of the inner cavity of the spray box 3 and is connected to the spray ring 40. A plurality of nozzles 41 are arranged on the spray ring 40, and the nozzles 41 are distributed at equal intervals in a ring shape. The top of the spray ring 40 is close to the partition plate 35.

[0042] When the water pump 4 operates, it continuously extracts circulating water from the spray box 3. The second filter cotton 420 is used to filter the extracted circulating water to prevent particulate matter from entering the spray ring 40 and blocking the nozzles 41. Multiple nozzles 41 spray water at the same time, which can increase the contact area between the atomized water and the dust and improve the dust removal effect.

[0043] The assembly process of the present utility model is as follows: The user manually fixes the filter box 2 and the spray box 3 in the installation groove 10 on the base plate 1 in sequence, then inserts the first filter cotton 241 into the slot 240 of the side plate 24, inserts and matches the rubber pad at the bottom of the sealing cover 20 with the filter box 2, and the fastening bolt 201 passes through the bolt hole 200 and is threadedly connected to the screw hole 22 to realize the stable installation combination of the sealing cover 20 and the filter box 2. The filter box 2 and the spray box 3 are communicated with each other through the guiding pipe 21. Then the water pump 4 is fixed on the base plate 1, the water inlet pipe extends into the filter box 2 and is connected to the limit frame 42 with the second filter cotton 420. The water outlet pipe of the water pump 4 is connected to the spray ring 40 with the nozzles 41. The partition plate 35 is inserted and matched with the annular groove 31, the drying cotton 36 is inserted and matched with the annular groove 31. Finally, the top cover 30 with the exhaust pipe 300 is inserted and installed with the spray box 3 under the cooperation of the gasket 301.

[0044] Usage method of the utility model: When dust treatment is required, connect the air inlet pipe 230 to the dust gas pipeline in the steel mill, turn on the power supply of the blower 23, and continuously transport the dust-containing gas in the air inlet pipe 230 to the filtration box 2. The dust particles in the dust-containing gas are preliminarily filtered by two first filter cottons 241 and then enter the spray box 3. The spray box 3 replenishes circulating water through the water injection pipe 34. Turn on the power supply of the water pump 4. The circulating water in the spray box 3 is filtered by the second filter cotton 420, and after removing particulate matter, it is recycled. The filtered circulating water enters the spray ring 40 through the water pump 4 and is fully atomized by multiple nozzles 41 and then sprayed out to adsorb small particulate matter in the gas. The gas is discharged from the exhaust pipe 300 after being filtered by the drying cotton 36. The function of the drying cotton 36 is to reduce water vapor emission. Observe the dust content of the circulating water in the spray box 3 in real time through the observation window 32. When it is necessary to clean the internal dust, open the sealing cover 20, take out the first filter cotton 241 for cleaning, open the top cover 30 to take out the drying cotton 36 and the partition plate 35 for cleaning, fully clean the inside of the spray box 3, open the sewage discharge valve 330 to discharge the circulating water containing dust inside the spray box 3, and finally reinstall the cleaned first filter cotton 241, drying cotton 36 and partition plate 35.

[0045] The utility model combines the first filter cotton, the spray dust removal device and the drying cotton, and removes dust through a multi-stage dust reduction device. It can not only reduce the environmental pollution impact of gas emissions on the surrounding environment, but also the disassembly and installation of the first filter cotton and the drying cotton are very convenient, which can reduce the difficulty of internal dust cleaning and improve the dust cleaning efficiency. The observation window is convenient for observing the deposition of internal dust in real time, accurately grasping the cleaning time, timely cleaning the internally deposited dust, and ensuring the normal operation of the equipment.

Claims

1. A dust treatment device, characterized in that, It includes a filtration box (2) and a spray box (3). The filtration box (2) is located on the left side of the spray box (3). The air outlet on the right side wall of the filtration box (2) is connected to the air inlet on the left side wall of the spray box (3) through a guiding pipe (21). A blower (23) and an air inlet pipe (230) are provided on the left side of the filtration box (2). The air inlet of the blower (23) is connected to the dust gas pipeline in the steel plant through the air inlet pipe (230), and the air outlet of the blower (23) is communicated with the inside of the filtration box (2). A first filter cotton (241) is provided inside the filtration box (2). The top of the spray box (3) is provided with an exhaust pipe (300), a spray dust removal device is provided in the middle and lower part, and a sewage discharge valve (330) is provided at the bottom.

2. The dust treatment device according to claim 1, characterized in that, It further includes a drying cotton (36). The top of the spray box (3) is provided with a top cover (30), and a partition plate (35) is provided inside. The partition plate (35) is located above the guiding pipe (21) and divides the inner cavity of the spray box (3) into upper and lower parts. A through hole (350) is opened in the middle of the partition plate (35). The drying cotton (36) is installed on the upper part of the partition plate (35), and the spray dust removal device is located below the partition plate (35).

3. The dust treatment device according to claim 2, characterized in that, The spray dust removal device includes a water pump (4), a limiting frame (42), a second filter cotton (420), a spray ring (40) and a plurality of nozzles (41). The water pump (4) is installed on the side of the spray box (3). The spray ring (40) is fixed inside the spray box (3) and the top of the spray ring (40) is close to the partition plate (35). A plurality of nozzles (41) are evenly distributed along the spray ring (40). The water inlet pipe of the water pump (4) extends to the bottom of the inner cavity of the spray box (3) and is connected to the limiting frame (42). The second filter cotton (420) is installed in the limiting frame (42). The water outlet pipe of the water pump (4) extends to the inside of the spray box (3) and is connected to the inner cavity of the spray ring (40).

4. A dust treatment device according to claim 3, characterized in that, Both the filtration box (2) and the spray box (3) are installed on a base plate (1). Installation grooves (10) matching the filtration box (2) and the spray box (3) are opened on the upper surface of the base plate (1).

5. A dust treatment device according to claim 4, characterized in that, The top of the filtration box (2) is provided with a detachable sealing cover (20). A side plate (24) is provided on each side of the first filter cotton (241). The two side plates (24) are symmetrically fixed on the inner sides of the front wall and the rear wall of the filtration box (2). A vertical slot (240) is opened in the middle of each side plate (24). The two sides of the first filter cotton (241) are respectively inserted into the slots (240) on the two side plates (24).

6. The dust treatment device according to claim 5, characterized in that A rubber pad is provided at the bottom of the sealing cover (20); a sealing gasket (301) is provided on the lower surface of the top cover (30).

7. A dust treatment device according to any one of claims 1-6, characterized in that, Two first filter cottons (241) are provided, and the two first filter cottons (241) are arranged in the left-right direction of the filtration box (2).

8. A dust treatment device according to claim 7, characterized in that, The left end of the guiding pipe (21) is higher than the right end.

9. A dust treatment device according to claim 8, characterized in that, An observation window (32) is provided on the side wall of the spray box (3).

10. A dust treatment device according to claim 9, characterized in that, A water injection pipe (34) is provided on the side wall of the spray box (3).

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