Anti-blocking adhesive wet dust removal device for smoke dust

Abstract

The utility model relates to an anti-blocking adhesive smoke wet dust removal device applied to the field of flue gas purification treatment, which comprises a dust removal box, a first-stage dust removal module, a second-stage dust removal module and a third-stage dust removal module are sequentially arranged in the dust removal box from left to right, and a water inlet pipe is arranged at the upper end of the dust removal box. The outer surface of the water inlet pipe is fixedly connected with a plurality of supporting pipes, the lower ends of the multiple supporting pipes are fixedly connected with a flow dividing pipe, the lower end of the flow dividing pipe is fixedly connected with a plurality of spraying pipes, the lower ends of the spraying pipes fixedly penetrate into an inner cavity of the dust removal box, and the surfaces of the spraying pipes are fixedly connected with a plurality of spraying heads. In the dust removal process of flue gas, the silk screen can be cleaned, so that adhesive smoke dust is effectively prevented from staying and adhering on the dust remover, the adhesion and blockage of the dust remover are reduced, the normal operation and dust removal effect of a dust removal system are effectively ensured, and the maintenance and cleaning strength of the dust remover is further reduced.

Description

Technical Field

[0001] The utility model relates to a dust removal device, in particular to an anti-blocking adhesion type soot wet dust removal device applied to the field of flue gas purification and treatment. Background Art

[0002] In the processes of primary and secondary mixing, sintering, and pelletizing operations in the metallurgical industry, a large amount of dust-containing flue gas is generated. The flue gas has a high concentration of particulate matter, a large content of calcium oxide and carbon, and more than 80% of the dust particles are small. Flue gas emissions are one of the main sources of air and water environmental pollution. The harmful substances in the flue gas can directly enter the human respiratory tract and cause respiratory diseases.

[0003] Calcium oxide in the flue gas forms calcium hydroxide adhesive slurry with water, and then fuses with a large amount of fine dust and carbon powder to form a highly adhesive dust substance. After being intercepted by a water spray dust collector, this adhesive combination continuously adheres to the dust collector. Under the action of oxidation, calcium salts and sodium salts will be formed and hardened, causing adhesion blockage to various dust collectors, increasing the pressure drop of the dust collector, and greatly reducing the dust collection effect of the dust suction hood, resulting in low dust removal efficiency or failure. Content of the Utility Model

[0004] Aiming at the above-mentioned prior art, the technical problem to be solved by the utility model is that various substances in the flue gas will form a highly adhesive dust substance with water. This synthetic substance will cause adhesion blockage to the dust collector, increase the pressure drop of the dust collector, and greatly reduce the dust collection effect of the dust suction hood, resulting in low dust removal efficiency or failure.

[0005] To solve the above problems, the utility model provides an anti-blocking adhesion type soot wet dust removal device, which includes a dust removal box. An primary dust removal module, a secondary dust removal module, and a tertiary dust removal module are sequentially arranged in the dust removal box from left to right. A water inlet pipe is arranged at the upper end of the dust removal box. A plurality of support pipes are fixedly connected to the outer surface of the water inlet pipe. The lower ends of the plurality of support pipes are fixedly connected to a shunt pipe. The lower end of the shunt pipe is fixedly connected to a plurality of spray pipes. The lower ends of the spray pipes fixedly penetrate through the inner cavity of the dust removal box. A plurality of nozzles are fixedly connected to the surface of the spray pipes. The primary dust removal module, the secondary dust removal module, and the tertiary dust removal module all include a fixed frame and a wire mesh fixedly connected to the inner wall of the fixed frame. The number of wire meshes in the primary dust removal module is one, the number of wire meshes in the secondary dust removal module is two, and the number of wire meshes in the tertiary dust removal module is five. The nozzles on the spray pipes on both sides of the wire mesh are all oriented towards the wire mesh. A plurality of drainage grooves are dug on the inner bottom wall of the dust removal box. A circulation pipe is arranged at the lower end of the dust removal box. A plurality of water outlet pipes respectively corresponding to the plurality of drainage grooves are fixedly connected to the outer surface of the circulation pipe. The upper ends of the water outlet pipes are fixedly connected to the lower end of the dust removal box.

[0006] In the above anti-blocking adhesive dust wet dust removal device, during the process of dust removal from the flue gas, the wire mesh can be cleaned, thus effectively preventing the adhesive dust from staying and adhering to the dust collector, reducing the clogging of the dust collector, effectively ensuring the normal operation of the dust removal system and the dust removal effect, and further reducing the intensity of the maintenance and cleaning of the dust collector.

[0007] As a further improvement of the present application, the outer surface of the fixed frame is fixedly connected to the outer surface of the dust removal box, and the water inlet pipe, the support pipe, the shunt pipe and the spray pipe are interconnected.

[0008] As a further improvement of the present application, the drainage trough is arc-shaped, and the water outlet pipe is connected to the drainage trough.

[0009] As another improvement of the present application, a limiting groove is formed in the longitudinal inner wall of the dust removal box, the outer surface of the fixed frame fits with the inner wall of the dust removal box, the rear end of the fixed frame penetrates into the limiting groove, a pressing plate is fixedly connected to the front end of the fixed frame, and the front end of the pressing plate penetrates through the dust removal box.

[0010] As a supplementary improvement of the present application, two fixing plates are provided at the front end of the dust removal box, two U-shaped frames are fixedly connected to the front ends of the two fixing plates, both the upper and lower ends of the U-shaped frame are fixedly connected to the dust removal box through bolts, and three screws corresponding to the three pressing plates respectively penetrate through the front end of the fixing plate in a threaded manner. A positioning plate is fixedly connected to the rear end of the screw, and the rear end of the positioning plate fits with the front end of the pressing plate.

[0011] As a supplementary improvement of the present application, a rubber ring is fixedly connected to one end of the pressing plate facing the fixed frame, and the rubber ring is located outside the fixed frame. Three accommodating grooves for cooperating with the three pressing plates respectively are formed in the front end of the dust removal box. The accommodating groove is convex and is completely matched with the rubber ring. A handle is fixedly connected to the front end of the pressing plate.

[0012] In summary, in the actual application process, after the flue gas enters the dust removal box, the first-stage dust removal module and the second-stage dust removal module adopt one layer and two layers of wire meshes, so that the amount of wire mesh pasted in the first-stage dust removal module and the second-stage dust removal module is small. Then, water is sprayed onto the wire mesh through the spray pipe and the nozzle to wash the wire mesh, which can better prevent adhesion. After being intercepted by the first-stage dust removal module and the second-stage dust removal module, the removal rate of the highly adhesive dust in the flue gas can reach 80%. Then, through the five-layer wire mesh in the third-stage dust removal module, the flue gas is dust-removed and filtered, so that the flue gas meets the environmental protection ultra-low emission standard, thus effectively preventing the adhesive dust from staying and adhering to the dust collector, effectively ensuring the normal operation of the dust removal system and the dust removal effect, and further reducing the intensity of the maintenance and cleaning of the dust collector. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of the first embodiment of the present application;

[0014] Figure 2 Schematic diagram of the dust removal box structure for the first embodiment of the present application;

[0015] Figure 3 Cross-sectional view of the structure for the first embodiment of the present application;

[0016] Figure 4 Schematic diagram of the structure for the second embodiment of the present application;

[0017] Figure 5 Schematic diagram of the dust removal box structure for the second embodiment of the present application;

[0018] Figure 6 Schematic diagram of the U-shaped frame structure for the second embodiment of the present application;

[0019] Figure 7 Schematic diagram of the pressing plate structure for the second embodiment of the present application.

[0020] Description of the reference numerals in the figure:

[0021] 1 Dust removal box, 2 Primary dust removal module, 3 Secondary dust removal module, 4 Tertiary dust removal module, 5 Water inlet pipe, 6 Support pipe, 7 Diverging pipe, 8 Spray pipe, 9 Fixed frame, 10 Wire mesh, 11 Drainage trough, 12 Circulation pipe, 13 Pressing plate, 14 Fixed plate, 15 U-shaped frame, 16 Screw, 17 Positioning plate, 18 Limit groove. Specific embodiments

[0022] The following will make a detailed description of the two embodiments of the present application in conjunction with the accompanying drawings.

[0023] The first embodiment:

[0024] Figure 1 and Figure 2Shown: An anti-blocking adhesive soot wet dust removal device, including a dust removal box 1. Inside the dust removal box 1, a primary dust removal module 2, a secondary dust removal module 3, and a tertiary dust removal module 4 are arranged in sequence from left to right. At the upper end of the dust removal box 1, there is a water inlet pipe 5. On the outer surface of the water inlet pipe 5, a plurality of support pipes 6 are fixedly connected. At the lower ends of the plurality of support pipes 6, a shunt pipe 7 is fixedly connected. At the lower end of the shunt pipe 7, a plurality of spray pipes 8 are fixedly connected. The lower ends of the spray pipes 8 fixedly penetrate through to the inner cavity of the dust removal box 1. On the surface of the spray pipes 8, a plurality of nozzles are fixedly connected. The outer surface of the fixed frame 9 is fixedly connected to the outer surface of the dust removal box 1. A plurality of drainage grooves 11 are dug on the inner bottom wall of the dust removal box 1. The water discharged from the spray pipes 8 enters the water outlet pipe through the drainage grooves 11, and then enters the circulation pipe 12 through the water outlet pipe and is discharged for treatment. At the lower end of the dust removal box 1, there is a circulation pipe 12. On the outer surface of the circulation pipe 12, a plurality of water outlet pipes respectively corresponding to the plurality of drainage grooves 11 are fixedly connected. The upper ends of the water outlet pipes are fixedly connected to the lower end of the dust removal box 1. The water inlet pipe 5, the support pipes 6, the shunt pipe 7, and the spray pipes 8 are interconnected. The drainage grooves 11 are arc-shaped, and the water outlet pipes are connected to the drainage grooves 11.

[0025] Figure 3 Shown: The primary dust removal module 2, the secondary dust removal module 3, and the tertiary dust removal module 4 all include a fixed frame 9 and a wire mesh 10 fixedly connected to the inner wall of the fixed frame 9. The number of wire meshes 10 in the primary dust removal module 2 is one, the number of wire meshes 10 in the secondary dust removal module 3 is two, and the number of wire meshes 10 in the tertiary dust removal module 4 is five. The nozzles on the spray pipes 8 on both sides of the wire mesh 10 all face the wire mesh 10. When using multiple layers of wire meshes 10 to remove dust from the flue gas, the wire meshes 10 are easily blocked by synthetic substances with strong adhesiveness. First, the synthetic substances are treated by the primary dust removal module 2 and the secondary dust removal module 3, and then the flue gas is treated by the five-layer wire mesh 10 in the tertiary dust removal module 4. Through step-by-step treatment level by level, the anti-blocking effect is achieved.

[0026] When in use, after the flue gas enters the dust removal box 1, the primary dust removal module 2 and the secondary dust removal module 3 adopt one layer and two layers of wire meshes 10, so that the amount of adhesion on the wire meshes 10 in the primary dust removal module 2 and the secondary dust removal module 3 is small. Then, water is sprayed onto the wire meshes 10 through the spray pipes 8 and the nozzles to wash the wire meshes 10, which can better prevent adhesion. After being intercepted by the primary dust removal module 2 and the secondary dust removal module 3, the removal rate of dust substances with very strong adhesiveness in the flue gas can reach 80%. Then, through the five-layer wire mesh 10 in the tertiary dust removal module 4, the flue gas is dust-removed and filtered, so that the flue gas reaches the environmental protection ultra-low emission standard, effectively preventing the adhesion of adhesive soot on the dust collector and staying and bonding, effectively ensuring the normal operation of the dust removal system and the dust removal effect, and further reducing the intensity of maintenance and cleaning of the dust collector.

[0027] The second implementation mode:

[0028] This implementation mode is based on the first implementation mode, with additions and changes, and the rest of the parts remain the same as the first implementation mode.

[0029] Figure 4 and Figure 5 It is shown that: a limiting groove 18 is bored on the longitudinal inner wall of the dust removal box 1, the outer surface of the fixed frame 9 fits with the inner wall of the dust removal box 1, and the rear end of the fixed frame 9 passes through the limiting groove 18 to improve the stability of the fixed frame 9. The front end of the fixed frame 9 is fixedly connected with a pressure plate 13, and the front end of the pressure plate 13 passes through the dust removal box 1.

[0030] Figure 6 It is shown that: two fixing plates 14 are provided at the front end of the dust removal box 1, and two U-shaped frames 15 are fixedly connected to the front ends of the two fixing plates 14. The upper and lower ends of the U-shaped frames 15 are fixedly connected to the dust removal box 1 by bolts. The front end thread of the fixing plate 14 is penetrated by three screws 16 corresponding to the three pressure plates 13 respectively, and the rear end of the screw 16 is fixedly connected with a positioning plate 17. The rear end of the positioning plate 17 is fitted with the front end of the pressure plate 13, and the pressure plate 13 is squeezed by the positioning plate 17 to improve the stability of the pressure plate 13.

[0031] Figure 7 It is shown that: a rubber ring is fixedly connected to one end of the pressing plate 13 facing the fixed frame 9, and the rubber ring is located on the outside of the fixed frame 9, and three accommodating grooves are opened at the front end of the dust removal box 1 for respectively cooperating with the three pressing plates 13, and the accommodating grooves are convex and completely match the rubber rings, and a handle is fixedly connected to the front end of the pressing plate 13 to facilitate pulling out the fixed frame 9.

[0032] When in use, the bolts can be removed to remove the U-shaped frame 15, and then the pressure plate 13 can be pulled out to disengage the fixed frame 9 from the limit groove 18, thereby pulling out the first-stage dust removal module 2, the second-stage dust removal module 3 and the third-stage dust removal module 4, so as to facilitate the maintenance of the wire mesh 10 inside. After maintenance, the first-stage dust removal module 2, the second-stage dust removal module 3 and the third-stage dust removal module 4 are inserted into the dust removal box 1, and the U-shaped frame 15 is fixed by bolts, and then the screw 16 is rotated to move the positioning plate 17 backward to squeeze the pressure plate 13, thereby improving the stability of the pressure plate 13 and the sealing of the dust removal box 1.

[0033] In view of current practical needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A clogging-proof adhesion-type wet dust removal device for soot, comprising a dust removal box (1), characterized in that: Inside the dust removal box (1), a primary dust removal module (2), a secondary dust removal module (3), and a tertiary dust removal module (4) are successively arranged from left to right. An inlet water pipe (5) is provided at the upper end of the dust removal box (1). A plurality of support pipes (6) are fixedly connected to the outer surface of the inlet water pipe (5). The lower ends of the plurality of support pipes (6) are fixedly connected to a shunt pipe (7). The lower end of the shunt pipe (7) is fixedly connected to a plurality of spray pipes (8). The lower ends of the spray pipes (8) fixedly penetrate through to the inner cavity of the dust removal box (1). A plurality of nozzles are fixedly connected to the surface of the spray pipes (8). The primary dust removal module (2), the secondary dust removal module (3), and the tertiary dust removal module (4) each include a fixed frame (9) and a wire mesh (10) fixedly connected to the inner wall of the fixed frame (9). The number of wire meshes (10) in the primary dust removal module (2) is one. The number of wire meshes (10) in the secondary dust removal module (3) is two. The number of wire meshes (10) in the tertiary dust removal module (4) is five. The nozzles on the spray pipes (8) on both sides of the wire mesh (10) all face the wire mesh (10). A plurality of drain grooves (11) are dug on the inner bottom wall of the dust removal box (1). A circulation pipe (12) is provided at the lower end of the dust removal box (1). A plurality of outlet water pipes respectively corresponding to the plurality of drain grooves (11) are fixedly connected to the outer surface of the circulation pipe (12). The upper ends of the outlet water pipes are fixedly connected to the lower end of the dust removal box (1).

2. The anti-blocking adhesion dust wet dust removal device according to claim 1, wherein: The outer surface of the fixed frame (9) is fixedly connected to the outer surface of the dust removal box (1). The inlet water pipe (5), the support pipes (6), the shunt pipe (7), and the spray pipes (8) are interconnected.

3. The anti-blocking adhesion type wet dust removal device for soot according to claim 1, wherein: The drain grooves (11) are arc-shaped. The outlet water pipes are communicated with the drain grooves (11).

4. The anti-blocking and adhesive soot wet dust removal device according to claim 1, characterized in that: A limiting groove (18) is dug on the longitudinal inner wall of the dust removal box (1). The outer surface of the fixed frame (9) fits against the inner wall of the dust removal box (1). The rear end of the fixed frame (9) penetrates into the limiting groove (18). A pressing plate (13) is fixedly connected to the front end of the fixed frame (9). The front end of the pressing plate (13) penetrates through the dust removal box (1).

5. The anti-blocking adhesion dust wet dust removal device according to claim 4, characterized in that: Two fixing plates (14) are provided at the front end of the dust removal box (1). Two U-shaped frames (15) are fixedly connected to the front ends of the two fixing plates (14). The upper and lower ends of the U-shaped frames (15) are fixedly connected to the dust removal box (1) through bolts. Three screws (16) respectively corresponding to the three pressing plates (13) are threadedly penetrated through the front ends of the fixing plates (14). A positioning plate (17) is fixedly connected to the rear end of the screw (16). The rear end of the positioning plate (17) fits against the front end of the pressing plate (13).

6. The anti-blocking adhesion type wet dust removal device for soot according to claim 5, wherein: One end of the pressing plate (13) facing the fixed frame (9) is fixedly connected with a rubber ring, and the rubber ring is located outside the fixed frame (9). Three accommodating grooves respectively cooperating with the three pressing plates (13) are dug at the front end of the dust removal box (1). The accommodating grooves are convex-shaped and are completely matched with the rubber ring. A handle is fixedly connected to the front end of the pressing plate (13).

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