Cooling and filtering structure for hot galvanizing workpiece

Abstract

The utility model discloses a hot galvanizing workpiece cooling and filtering structure which comprises a filtering cylinder, a connecting pipe and a leading-out pipe are arranged at the two ends of the filtering cylinder respectively, a dreg collecting structure is arranged at the tail end, located on the connecting pipe, of the filtering cylinder, and a dust filtering structure is arranged between the dreg collecting structure and the leading-out pipe. And the connecting pipe is used for connecting the filter cartridge with a water outlet of the hot galvanizing workpiece cooling tank. According to the utility model, the slag collecting structure and the dust filtering structure are arranged, so that the zinc slag and the dust are effectively separated, and the pertinence and the efficiency of filtering are improved. Due to the fact that impurities in the cooling liquid are effectively separated, the influence on the quality of a plating layer is reduced, and the overall quality of a hot galvanizing workpiece is improved. By collecting and filtering zinc slag and dust, potential pollution of the impurities to the environment is reduced, and the environment protection requirement is met. And due to the design of the slag guide outlet and the slag collecting box, the zinc slag is more convenient to collect and treat, manual intervention is reduced, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to a cooling and filtering structure for hot-dip galvanized workpieces. Background Art

[0002] In the hot-dip galvanizing process, during the cooling of the coating on the workpiece, a certain amount of zinc slag and dust will be generated at the cooling tank of the hot-dip galvanized workpiece. These impurities not only affect the coating quality but also may cause environmental pollution.

[0003] Most of the traditional cooling and filtering structures are single-filter structures, which cannot separate zinc slag and dust. It is inconvenient to collect and process the slag. At the same time, the traditional filter structure is complex to clean and maintain, requires frequent disassembly, increasing the maintenance cost and time. In order to improve the filtering efficiency and reduce the cooling water pollution, a new type of cooling and filtering structure for hot-dip galvanized workpieces is needed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a cooling and filtering structure for hot-dip galvanized workpieces to solve the problems in the above background art that most of the traditional cooling and filtering structures are single-filter structures, which cannot separate zinc slag and dust, it is inconvenient to collect and process the slag, at the same time, the traditional filter structure is complex to clean and maintain, requires frequent disassembly, increasing the maintenance cost and time.

[0005] To solve the above technical problems, the utility model provides the following technical solution: A cooling and filtering structure for hot-dip galvanized workpieces, including a filter cylinder, connecting pipes and a discharge pipe are respectively arranged at both ends of the filter cylinder, a slag collection structure is arranged at the end of the filter cylinder where the connecting pipe is located, and a dust filtering structure is arranged between the slag collection structure and the discharge pipe.

[0006] The connecting pipe is used to connect the filter cylinder with the water outlet of the hot-dip galvanized workpiece cooling tank.

[0007] Preferably, the slag collection structure includes a flow guide plate inside the filter cylinder at the end of the connecting pipe, and a slow flow protrusion is arranged at one end of the flow guide plate away from the connecting pipe;

[0008] Filter hole plates are arranged at intervals at the end of the filter cylinder where the flow guide plate is located, a reverse flow plate is arranged below the filter hole plates, and the flow guide plate extends to directly below the flow guide plate; through the arranged slow flow protrusion, the slag is guided to flow slowly, the slag is collected, and the time for the slag to enter the slag collection box is reduced through the reverse flow plate.

[0009] Preferably, a slag discharge port is arranged at the end of the flow guide plate, connecting slide rails are arranged on both sides of the slag discharge port, and the slag discharge port is connected with a slag collection box through the connecting slide rails;

[0010] A sealing cover plate is arranged on one side of the slag collection box.

[0011] Preferably, the dust filtering structure includes a semi-circular cover plate, which is connected to the filtering cylinder by screws. The semi-circular cover plate is connected with a filtering ring plate through an adapter plate, and a dust filter screen is arranged inside the filtering ring plate.

[0012] Preferably, a sealing gasket is arranged inside the semi-circular cover plate.

[0013] Preferably, a semi-circular groove for inserting the semi-circular cover plate is formed on the outer periphery of the filtering cylinder.

[0014] Preferably, guiding grooves which are matched with the water outlet of the cooling tank of the hot-dip galvanized workpiece are formed on the upper and lower sides of the inner wall of the connecting pipe, so that the connecting pipe is linearly connected to the water outlet of the cooling tank of the hot-dip galvanized workpiece through the guiding grooves.

[0015] Preferably, an inlet is formed on one side of the filtering cylinder where the connecting pipe is located. The inner diameter of the connecting pipe is larger than that of the inlet. A sealing gasket is arranged outside the inlet of the filtering cylinder, so that the connecting pipe abuts against the sealing gasket outside the inlet.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] By arranging the slag collection structure and the dust filtering structure, the utility model realizes the effective separation of zinc slag and dust, and improves the pertinence and efficiency of filtering.

[0018] Since the impurities in the coolant are effectively separated, the influence on the coating quality is reduced, thereby improving the overall quality of the hot-dip galvanized workpiece. By collecting and filtering zinc slag and dust, the potential pollution of these impurities to the environment is reduced, meeting the environmental protection requirements. The design of the slag outlet and the slag collection box makes the collection and treatment of zinc slag more convenient, reduces manual intervention, and lowers the maintenance cost.

[0019] Compared with the traditional filtering structure, the new structure simplifies the cleaning and maintenance processes, reduces the maintenance time and cost caused by frequent disassembly, reduces the production interruption time, and thus improves the overall production efficiency.

[0020] Through the design of the guiding grooves of the connecting pipe and the inlet of the filtering cylinder, the guiding connection between the filtering structure and the cooling tank is ensured. The insertion design between the semi-circular cover plate and the filtering cylinder makes the installation and cleaning of the whole filtering structure more convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0022] Figure 2Schematic cross-sectional structure diagram of an embodiment of the present utility model;

[0023] Figure 3 Schematic dust filtration structure diagram of an embodiment of the present utility model;

[0024] Figure 4 Schematic structure diagram of the slag collection box of an embodiment of the present utility model.

[0025] In the figure: 100, filter cylinder; 101, semi-circular groove; 102, inlet; 103, gasket; 200, connecting pipe; 201, guiding groove; 300, outlet pipe; 400, slag collection structure; 401, deflector; 402, flow-slowing protrusion; 403, filter hole plate; 404, backflow plate; 405, slag outlet; 406, connecting slide rail; 407, slag collection box; 408, sealing cover plate; 500, dust filtration structure; 501, semi-circular cover plate; 502, screw; 503, connecting plate; 504, filter ring plate; 505, dust filter net; 506, sealing rubber pad. Specific implementation manners

[0026] In order to facilitate the solution of the problem that most traditional cooling and filtering structures are single filtering structures, unable to separate zinc slag and dust, inconvenient for slag collection and treatment, and at the same time, the traditional filtering structure is complex to clean and maintain, requires frequent disassembly, increasing the maintenance cost and time, the embodiment of the present utility model provides a hot-dip galvanized workpiece cooling and filtering structure. The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1-4, the present utility model provides a cooling and filtering structure for hot-dip galvanized workpieces, which includes a filtering cylinder 100. At both ends of the filtering cylinder 100, a connecting pipe 200 and a leading-out pipe 300 are respectively arranged. At the end of the filtering cylinder 100 located at the connecting pipe 200, a waste collection structure 400 is arranged. The waste collection structure 400 includes a diversion plate 401 inside the filtering cylinder 100 at the end of the connecting pipe 200. At one end of the diversion plate 401 away from the connecting pipe 200, a flow-attenuating protrusion 402 is arranged; at the end of the filtering cylinder 100 located at the diversion plate 401, filtering hole plates 403 are arranged at intervals. Below the filtering hole plates 403, a reverse flow plate 404 is arranged, and the diversion plate 401 extends to directly below the diversion plate 401. At the end of the diversion plate 401, a waste outlet 405 is arranged. On both sides of the waste outlet 405, connecting slide rails 406 are arranged. The waste outlet 405 is connected to a waste collection box 407 through the connecting slide rails 406; on one side of the waste collection box 407, a sealing cover plate 408 is arranged.

[0028] A dust filtering structure 500 is arranged between the waste collection structure 400 and the leading-out pipe 300. The dust filtering structure 500 includes a semi-circular cover plate 501. The semi-circular cover plate 501 is connected to the filtering cylinder 100 through screws 502. The semi-circular cover plate 501 is connected with a filtering ring plate 504 through a connecting plate 503. Inside the filtering ring plate 504, a dust filter net 505 is arranged. Inside the semi-circular cover plate 501, a sealing gasket 506 is arranged.

[0029] On the outer periphery of the filtering cylinder 100, a semi-circular groove 101 for inserting the semi-circular cover plate 501 is opened. On one side of the filtering cylinder 100 located at the connecting pipe 200, an inlet 102 is opened. The inner diameter of the connecting pipe 200 is larger than that of the inlet 102. On the outer side of the filtering cylinder 100 located at the inlet 102, a sealing gasket 103 is arranged, so that the connecting pipe 200 abuts against the sealing gasket 103 on the outer side of the inlet 102.

[0030] On the upper and lower sides of the inner wall of the connecting pipe 200, guiding grooves 201 that are matched with the water outlet of the hot-dip galvanized workpiece cooling tank are opened, so that the connecting pipe 200 is linearly connected to the water outlet of the hot-dip galvanized workpiece cooling tank through the guiding grooves 201. The connecting pipe 200 is used to connect the filtering cylinder 100 to the water outlet of the hot-dip galvanized workpiece cooling tank.

[0031] The working principle of the cooling and filtering structure for hot-dip galvanized workpieces provided by the present utility model is as follows: The filtering cylinder 100 is linearly docked with the water outlet of the hot-dip galvanized workpiece cooling tank through the guiding grooves 201 of the connecting pipe 200, so that the cooling water in the hot-dip galvanized workpiece cooling tank is led out through the leading-out pipe 300;

[0032] When the cooling wastewater in the cooling tank enters the filter cartridge 100, the residue collection structure 400 starts to function. The guide plate 401 guides the flow of the cooling wastewater, and the flow-slowing protrusions 402 slow down the flow rate to allow the residues to settle. The filter orifice plate 403 further filters out larger residues, and the reverse flow plate 404 guides the residues to the residue discharge outlet 405 by gravity and is collected by the residue collection box 407; the sealing cover plate 408 of the residue collection box 407 can prevent the residues from scattering, facilitating subsequent processing.

[0033] When the cooling wastewater flows inside the filter cartridge 100, the dust filtration structure 500 starts to work. The semi-circular cover plate 501 is fixed on the filter cartridge 100, and the dust filter mesh 505 inside the filter ring plate 504 filters out the dust in the cooling wastewater.

[0034] The sealing gasket 506 on the inner side of the semi-circular cover plate 501 and the sealing gasket 103 between the connecting pipe 200 and the filter cartridge 100 ensure the sealing performance of the entire filtration system and prevent the leakage of the cooling wastewater.

[0035] The clean cooling wastewater after filtering out residues and dust flows out through the outlet pipe 300 and returns to the cooling tank or undergoes further processing.

[0036] When it is necessary to clean or replace the filter material, the residue collection box 407 can be disassembled, and the dust filter mesh 505 can be conveniently disassembled by the screw 502 for cleaning or replacement to maintain the filtration efficiency.

[0037] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A hot dip galvanized workpiece cooling and filtering structure, characterized in that: The filter cartridge (100) comprises a filter cartridge (100), wherein two ends of the filter cartridge (100) are respectively provided with a connection pipe (200) and an outlet pipe (300), the filter cartridge (100) is provided with a slag collection structure (400) at the end of the connection pipe (200), and a dust filtering structure (500) is provided between the slag collection structure (400) and the outlet pipe (300), The connecting pipe (200) is used to connect the filter cartridge (100) to the water outlet of the hot-dip galvanized workpiece cooling tank.

2. A hot dip galvanized workpiece cooling and filtering structure according to claim 1, characterized in that: The slag collection structure (400) comprises a guide plate (401) located inside the filter cartridge (100) at the rear end of the connecting pipe (200), and a slow-flow protrusion (402) is provided at one end of the guide plate (401) away from the connecting pipe (200); The filter cartridge (100) is provided with a filter hole plate (403) at the rear end of the guide plate (401), a backflow plate (404) is provided below the filter hole plate (403), and the guide plate (401) extends to directly below the guide plate (401).

3. A hot dip galvanized workpiece cooling and filtering structure according to claim 2, characterized in that: A slag outlet (405) is provided at the end of the guide plate (401), connecting slide rails (406) are provided on both sides of the slag outlet (405), and the slag outlet (405) is connected to a slag collection box (407) via the connecting slide rails (406); A sealing cover plate (408) is provided on one side of the slag collection box (407).

4. A hot dip galvanized workpiece cooling and filtering structure according to claim 1, characterized in that: The dust filtering structure (500) comprises a semicircular cover plate (501), wherein the semicircular cover plate (501) is connected to the filter cartridge (100) via screws (502); the semicircular cover plate (501) is connected to a filter ring plate (504) via a connecting plate (503); a dust filter screen (505) is arranged inside the filter ring plate (504).

5. A hot dip galvanized workpiece cooling and filtering structure according to claim 4, characterized in that: A sealing rubber pad (506) is provided on the inner side of the semicircular cover plate (501).

6. A hot dip galvanized workpiece cooling and filtering structure according to claim 4, characterized in that: The outer circumference of the filter cartridge (100) is provided with a semicircular annular groove (101) for inserting a semicircular cover plate (501).

7. A hot dip galvanized workpiece cooling and filtering structure according to claim 1, characterized in that: The upper and lower sides of the inner wall of the connecting pipe (200) are provided with guide grooves (201) that cooperate with the water outlet of the hot-dip galvanized workpiece cooling trough, so that the connecting pipe (200) is linearly connected to the water outlet of the hot-dip galvanized workpiece cooling trough through the guide grooves (201).

8. A hot dip galvanized workpiece cooling and filtering structure according to claim 1, characterized in that: The filter cartridge (100) is provided with an inlet (102) on one side of the connecting tube (200); the inner diameter of the connecting tube (200) is larger than the inlet (102); and a sealing gasket (103) is provided on the outside of the inlet (102) of the filter cartridge (100) so that the connecting tube (200) abuts against the sealing gasket (103) on the outside of the inlet (102).

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