Zinc ash filtering device and method for hot galvanizing

Abstract

The invention discloses a zinc ash filtering device and method for hot galvanizing, and relates to the technical field of hot galvanizing, the zinc ash filtering device comprises a galvanizing pool, a furnace nose, a first filtering box and a second filtering box, the first filtering box is arranged on one side of the galvanizing pool, and the galvanizing pool and the first filtering box are connected through a conveying pipe and a backflow pipe; the furnace nose is arranged above the galvanizing pool, the furnace nose is connected with the second filter box through a connecting pipe, the zinc extraction device further comprises a moving mechanism, a collecting mechanism and a zinc extraction mechanism, the moving mechanism is arranged above the galvanizing pool, the collecting mechanism is arranged inside the first filter box, and the zinc extraction mechanism is arranged above the moving mechanism. By means of the zinc ash collecting device, zinc ash collecting operation can be achieved, the overall content of the zinc ash in the galvanizing pool is reduced, the zinc ash in hot galvanizing steam can be effectively filtered out, the zinc ash condensed on the surface of a furnace nose and zinc ash substances carried in air are reduced, then the contact probability between the zinc ash and galvanized parts is reduced, and the production quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of hot-dip galvanizing, in particular to a zinc ash filtering device and method for hot-dip galvanizing. Background Art

[0002] Hot-dip galvanizing is one of the effective means to delay environmental corrosion of steel materials. The steel products with cleaned and activated surfaces are immersed in molten zinc liquid. Through the reaction and diffusion between iron and zinc, a zinc alloy coating with good adhesion is plated on the surface of the steel products, which is convenient for removing iron oxide on the surface of the steel parts. When the galvanized parts need to be taken out after galvanizing in the zinc liquid, since the zinc liquid on the surface of the galvanized parts is still in a high temperature state, it is easy to absorb too much zinc ash on the surface of the zinc liquid, resulting in quality problems of the zinc layer of the galvanized parts and destroying the external appearance of the zinc layer. In order to ensure the quality of the galvanized parts, the zinc ash on the surface of the zinc liquid is often cleaned by zinc ash cleaning equipment.

[0003] For example, the patent with patent announcement number CN115418589B records a hot-dip galvanizing device for electric iron accessories. However, the above device can only move zinc ash to one side of the zinc liquid tank, and there is no mechanism to transport the zinc ash to the outside, so that the overall content of zinc ash inside the base shell is not reduced, resulting in that the quality of other galvanized parts will still be affected during subsequent use. In addition, the temperature during the galvanizing process is relatively high, and some air carrying zinc ash will be directly discharged into the atmosphere, which will cause the zinc ash to condense on the furnace nose or other components, affecting the working environment.

[0004] Based on this, a zinc ash filtering device and method for hot-dip galvanizing are now provided, which can eliminate the disadvantages of the existing technical solutions. Summary of the invention

[0005] The object of the present invention is to provide a zinc ash filtering device and method for hot-dip galvanizing, so as to solve the problem in the background technology that it is inconvenient to collect zinc ash on the surface of zinc liquid and part of the zinc ash will be directly discharged into the air.

[0006] To achieve the above object, the present invention provides the following technical solutions: A zinc ash filtering device for hot-dip galvanizing, comprising a galvanizing pool, a furnace nose, a first filter box and a second filter box, wherein the first filter box is arranged at one side of the galvanizing pool, the galvanizing pool and the first filter box are connected via a delivery pipe and a return pipe, the surfaces of the delivery pipe and the return pipe are both provided with valve bodies, a pump is fixedly installed on the outer side of the return pipe, the furnace nose is arranged above the galvanizing pool, and the furnace nose and the second filter box are connected via a connecting pipe; It also includes a moving mechanism, a collecting mechanism and a zinc extraction mechanism. The moving mechanism is arranged above the galvanizing pool and is used to cooperate with the conveying pipe to convey the zinc ash floating in the galvanizing pool to the inside of the first filter box. The collecting mechanism is arranged inside the first filter box and is used to collect the floating zinc ash. The zinc extraction mechanism is arranged above the moving mechanism and is used to filter the zinc ash in the zinc vapor above the galvanizing pool.

[0007] Preferably, the moving mechanism includes a support plate fixedly arranged at the top of the galvanizing pool, a first rotating rod and a second rotating rod are installed inside the support plate, the first rotating rod and the second rotating rod are both rotatably connected to the inner wall of the support plate, a first synchronous wheel is fixedly installed on the first rotating rod and the second rotating rod, two of the first rotating rod and the second rotating rod are provided, four of the first synchronous wheels are provided, and are divided into two groups and symmetrically installed at the top of the inner side of the galvanizing pool, two of the first synchronous wheels in one group are connected by a first synchronous belt transmission, a connecting seat is fixedly installed on the surface of the first synchronous belt, two of the connecting seats and the first synchronous belt are provided, and are divided into two groups and symmetrically installed on the inner side of the support plate, a connecting rod is rotatably installed between the two connecting seats, short rods are symmetrically provided at the bottom of the connecting rod, a push plate is fixedly installed on the side of the short rod away from the connecting rod, and the two first rotating rods are connected by a driving assembly.

[0008] Preferably, the driving assembly includes a second synchronous wheel fixedly connected to the first rotating rod, the second synchronous wheel is arranged on the outer side of the support plate, a third synchronous wheel is arranged on one side of the second synchronous wheel, the second synchronous wheel and the third synchronous wheel are connected through a second synchronous belt transmission, a rotating rod is fixedly arranged between the two third synchronous wheels, one end of the rotating rod is fixedly connected to the output end of the first motor, the first motor is connected to the support plate through a bracket, and the rotating rod is rotatably connected to the bracket.

[0009] Preferably, the collecting mechanism includes a partition fixedly arranged inside the first filter box, the partition being arranged between the conveying pipe and the return pipe, a plurality of filter plates being evenly distributed on the upper end of the partition, a scraper being slidably arranged on one side of the filter plate, the size of the scraper being adapted to the size of the filter plate, a screw being rotatably connected to the partition by the internal thread of the scraper, one end of the screw extending into the interior of the partition and fixedly connected to the output end of the second motor, and a discharge port being arranged at the top of the first filter box.

[0010] Preferably, the zinc extraction mechanism includes a filter slidably arranged inside the second filter box, the air inlet end of the connecting pipe is arranged above the filter, an exhaust pipe is fixedly arranged at the bottom of the second filter box, a fan and a heater are installed on the exhaust pipe, the heater is located on the side of the fan away from the second filter box, and fixed plates are symmetrically arranged on the side walls of the second filter box, the fixed plates are arranged below the filter, the fixed plates are connected to the filter through a plurality of telescopic rods, a tension spring is sleeved on the outer side of the telescopic rod, and a plurality of eccentric wheels are further arranged below the filter, the rotating shaft of the eccentric wheel is rotatably connected to the inner wall of the second filter box, and one end of the rotating shaft of the eccentric wheel extends to the outside of the second filter box and is fixedly connected to the output end of the second motor.

[0011] Preferably, a baffle is fixedly installed inside the galvanizing pool, a guide groove is opened on the upper surface of the baffle, the cross section of the guide groove is set to be an inverted trapezoid, and the guide groove is connected to the conveying pipe.

[0012] Preferably, a box door is hinged on one side of the second filter box, and the box door is arranged above the filter screen.

[0013] Preferably, the cross-section of the push plate is set to be triangular, and the length of the short rod is greater than the height dimension of the first synchronous belt.

[0014] Preferably, one end of the exhaust pipe is connected to the first filter box, and the exhaust pipe is arranged on a side of the first filter box away from the filter plate.

[0015] A method for using a zinc ash filtering device for hot-dip galvanizing, the specific steps of use are as follows: S1. Start the fan to draw the steam with zinc ash into the second filter box, lower the steam temperature so that the zinc ash in the steam can condense on the filter surface, and the gas without zinc ash is transported to other components through the exhaust pipe; S2. During the fan start-up process, the first motor is also in the start-up state, and the two second synchronous belts are driven to rotate synchronously through the rotating rod, and then the two first synchronous belts are driven to rotate synchronously under the transmission cooperation of the synchronous wheel, thereby driving the connecting seat and the push plate to move their positions, and pushing the zinc ash floating on the surface of the zinc liquid into the inside of the guide groove; S3, the liquid in the guide groove moves to the first filter box through the delivery pipe, the zinc liquid flows on the surface of the partition, and the zinc liquid and the zinc ash are separated by the filter plate. The zinc liquid flows to the bottom of the partition, and is conveniently transported to the inside of the galvanizing pool again through the pump and the reflux pipe; S4. When the zinc ash needs to be processed centrally, the second motor is started to drive the screw to rotate, so that the scraper can scrape the zinc ash on the surface of the filter plate and move it to the discharge port. The user collects the zinc ash inside the first filter box through the discharge port and collects the zinc ash inside the second filter box through the box door.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention designs a zinc ash filtering device for hot-dip galvanizing, wherein the floating zinc ash is driven to move by a push plate in a moving mechanism, so that the floating zinc ash can be pushed into the inside of a guide groove, and then the collection operation of the zinc ash in the zinc liquid is realized through a collecting mechanism, thereby reducing the overall content of the zinc ash in the galvanizing pool, effectively reducing the influence of the zinc ash on the galvanized parts, and improving the production quality. In addition, a zinc extraction mechanism for filtering the zinc ash steam is provided, and when the zinc liquid evaporates at a high temperature to generate zinc ash steam, the steam can be sucked into the inside of a second filter box, so as to avoid the zinc ash steam condensing to form zinc ash in a place with a lower temperature, which is inconvenient to collect and process the zinc ash substances in the steam. The zinc ash in the hot-dip galvanizing steam can be effectively filtered through a filter screen, thereby reducing the zinc ash condensed on the surface of the furnace nose and the zinc ash substances entrained in the air, and further reducing the contact probability between the zinc ash and the galvanized parts, thereby reducing the coating defects on the surface of the strip steel and improving the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of one side of the present invention.

[0018] Figure 2 It is a structural schematic diagram of another side of the present invention.

[0019] Figure 3 It is a front view of the present invention.

[0020] Figure 4 For the present invention Figure 3 Schematic diagram of the internal structure.

[0021] Figure 5 It is a schematic diagram of the internal structure of the galvanizing pool of the present invention.

[0022] Figure 6 It is a structural schematic diagram of the moving mechanism of the present invention.

[0023] Figure 7 It is a schematic diagram of the structure inside the second filter box of the present invention.

[0024] Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle.

[0025] Reference numerals: galvanizing pool 101, furnace nose 102, first filter box 103, second filter box 104, delivery pipe 105, return pipe 106, connecting pipe 107, baffle 108, guide groove 109, box door 110, moving mechanism 200, support plate 201, first rotating rod 202, second rotating rod 203, first synchronous wheel 204, first synchronous belt 205, connecting seat 206, connecting rod 207, short rod 208 , push plate 209, second synchronous wheel 210, third synchronous wheel 211, second synchronous belt 212, rotating rod 213, first motor 214, bracket 215, collecting mechanism 300, partition 301, filter plate 302, scraper 303, screw 304, discharge port 305, zinc extraction mechanism 400, filter screen 401, exhaust pipe 402, fan 403, heater 404, fixed plate 405, telescopic rod 406, eccentric wheel 407. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] In this embodiment, if Figure 1-Figure 8 As shown, a zinc ash filtering device for hot-dip galvanizing includes a galvanizing pool 101, a furnace nose 102, a first filter box 103 and a second filter box 104. A control panel is arranged on one side of the galvanizing pool 101, and the control panel is electrically connected to the electrical components in the device to facilitate output of instructions. The second filter box 104 is connected to the galvanizing pool 101 through a frame (not shown in the figure) to play a supporting role. The first filter box 103 is arranged on one side of the galvanizing pool 101. Liquid level gauges are arranged inside the galvanizing pool 101 and the first filter box 103 to facilitate the cooperation of a pump to transport the zinc liquid inside the first filter box 103 to the inside of the galvanizing pool 101, so as to avoid the galvanizing pool 1 01 has less zinc liquid inside, which causes the moving mechanism 200 to lose its effect. The galvanizing pool 101 and the first filter box 103 are connected by a delivery pipe 105 and a return pipe 106. The delivery pipe 105 and the return pipe 106 are provided with valve bodies on their surfaces to control the opening and closing states of the pipes. The pipes of the device are provided with heat-insulating materials on the outside to avoid the loss of too much temperature. A pump is fixedly installed on the outside of the return pipe 106. The furnace nose 102 is arranged above the galvanizing pool 101. The furnace nose 102 is connected to the second filter box 104 by a connecting pipe 107, so that the zinc vapor can be sucked into the second filter box 104, which is convenient for filtering the zinc ash in the zinc vapor. The invention also includes a moving mechanism 200, a collecting mechanism 300 and a zinc extraction mechanism 400. The moving mechanism 200 is arranged above the galvanizing pool 101, and is used to cooperate with the conveying pipe 105 to convey the zinc ash floating in the galvanizing pool 101 to the inside of the first filter box 103. The collecting mechanism 300 is arranged inside the first filter box 103, and is used to collect the floating zinc ash. The zinc extraction mechanism 400 is arranged above the moving mechanism 200, and is used to filter the zinc ash in the zinc vapor above the galvanizing pool 101, so as to avoid the condensation of a large amount of zinc ash inside the furnace nose 102, and reduce the content of zinc ash that will fall to the surface of the zinc liquid. The zinc ash in the hot-dip galvanizing vapor can be effectively filtered, the coating defects on the surface of the strip steel can be reduced, and the product quality can be improved. Before the zinc ash filtering device and method for hot-dip galvanizing are used, first check whether the device can be used normally, and then start the corresponding components through the control panel to make the device enter the standby state.

[0028] Among them Figure 2-Figure 6 As shown, the moving mechanism 200 includes a support plate 201 fixedly arranged at the top of the galvanizing pool 101, a first rotating rod 202 and a second rotating rod 203 are installed inside the support plate 201, the first rotating rod 202 and the second rotating rod 203 are both rotatably connected to the inner wall of the support plate 201, and a first synchronous wheel 204 is fixedly installed on the first rotating rod 202 and the second rotating rod 203, two first rotating rods 202 and the second rotating rod 203 are each provided with, four first synchronous wheels 204 are provided, and are divided into two groups and symmetrically installed at the top of the inner side of the galvanizing pool 101, and the two first synchronous wheels 204 in one group are connected by a first synchronous belt 205 for transmission, and a connecting seat 206 is fixedly installed on the surface of the first synchronous belt 205, and the connecting seat 206 and the first synchronous belt 205 are provided with two, and are divided into two groups and symmetrically installed on the inner side of the support plate 201, and the first synchronous belt 205 drives the connecting seat 206 to move The connecting rod 207 is rotatably installed between the two connecting seats 206, and the short rod 208 is symmetrically arranged at the bottom of the connecting rod 207. The push plate 209 is fixedly installed on the side of the short rod 208 away from the connecting rod 207. The two first rotating rods 202 are connected by a driving assembly, and the first rotating rod 202 is driven to rotate by the driving assembly, thereby realizing the rotation operation of the first synchronous belt 205.

[0029] Among them Figure 2-Figure 6As shown, the driving assembly includes a second synchronous wheel 210 fixedly connected to the first rotating rod 202, the second synchronous wheel 210 is arranged on the outside of the support plate 201, and a third synchronous wheel 211 is arranged on one side of the second synchronous wheel 210. The second synchronous wheel 210 and the third synchronous wheel 211 are connected through a second synchronous belt 212 for transmission. A rotating rod 213 is fixedly arranged between the two third synchronous wheels 211, and one end of the rotating rod 213 is fixedly connected to the output end of the first motor 214. The rotating rod 213 is driven to rotate by the first motor 214, and then the third synchronous wheel 211 and the second synchronous belt 212 are driven to transmit, thereby ensuring the normal operation of the device. The first motor 214 is connected to the support plate 201 through a bracket 215, and the rotating rod 213 is rotationally connected to the bracket 215 to play a supporting role.

[0030] Among them Figure 4 As shown, the collecting mechanism 300 includes a partition 301 fixedly arranged inside the first filter box 103, the partition 301 is arranged between the delivery pipe 105 and the return pipe 106, and a plurality of filter plates 302 are evenly distributed on the upper end of the partition 301. The filter plate 302 is a mesh filter, which is convenient for filtering the scum and zinc ash in the zinc liquid to improve the filtering effect. A scraper 303 is slidably arranged on one side of the filter plate 302. The size of the scraper 303 is compatible with the size of the filter plate 302, which is convenient for scraping off the zinc ash on the filter plate 302. The internal thread of the scraper 303 is provided with a screw 304, and the screw 304 is connected to the partition 301. 01 rotational connection, one end of the screw 304 extends to the inside of the partition 301 and is fixedly connected to the output end of the second motor, the second motor is arranged inside the partition 301, when the device is in an idle state, the zinc liquid level inside the first filter box 103 is lower than the partition 301, and the second motor is started to drive the screw 304 to rotate, and then drive the scraper 303 to move upward, so as to scrape the zinc ash attached to the upper surface of the scraper 303 to the top, which is convenient for subsequent cleaning operations. The zinc liquid in this process will not interfere with the zinc ash scraping operation. A discharge port 305 is provided on the top of the first filter box 103 to facilitate the discharge of zinc ash.

[0031] Among them Figure 7 and Figure 8As shown, the zinc extraction mechanism 400 includes a filter screen 401 slidably arranged inside the second filter box 104, the air inlet end of the connecting pipe 107 is arranged above the filter screen 401, and a plurality of valve bodies are installed on the exhaust pipe 402 and the connecting pipe 107. A heat exchanger is arranged inside the second filter box 104, and the heat exchanger is connected to the connecting pipe 107, and is used to cool the zinc vapor. By lowering the temperature, the zinc vapor can condense into zinc ash and be intercepted by the filter screen 401, so that the zinc ash can be quickly condensed and collected. An exhaust pipe 402 is fixedly arranged at the bottom of the second filter box 104, and a fan 403 and a heater 404 are installed on the exhaust pipe 402. The heater 404 is used to heat the filtered gas to a suitable temperature, so that the gas can be transported to the first filter box 103 to heat the reflux zinc liquid, or transported to other equipment for heating effect. The heater 404 is located on the side of the fan 403 away from the second filter box 104, and a fixing plate 405 is symmetrically arranged on the side wall of the second filter box 104, and the fixing plate 405 is arranged below the filter 401, and the fixing plate 405 is connected to the filter 401 through a plurality of telescopic rods 406, and a tension spring is sleeved on the outer side of the telescopic rod 406, and the tension spring enables the filter 401 to have the ability to automatically return to its original position, and a plurality of eccentric wheels 407 are also arranged below the filter 401, and the rotating shaft of the eccentric wheel 407 is rotatably connected to the inner wall of the second filter box 104, and one end of the rotating shaft of the eccentric wheel 407 extends to the outside of the second filter box 104 and is fixedly connected to the output end of the third motor, and the third motor is started to drive the eccentric wheel 407 to rotate, thereby driving the filter 401 to move up and down, and the position of the filter 401 is limited by the telescopic rod 406 and the tension spring to prevent zinc ash from clogging the filter 401.

[0032] Among them Figure 4 and Figure 5 As shown, a baffle 108 is fixedly installed inside the galvanizing pool 101, and a guide groove 109 is opened on the upper surface of the baffle 108. The cross section of the guide groove 109 is set to an inverted trapezoid. The guide groove 109 is connected with the delivery pipe 105, which is convenient for the zinc liquid with zinc ash to enter the inner side of the guide groove 109, and the liquid is transported to the inside of the first filter box 103 through the delivery pipe 105 at the bottom of the guide groove 109, which is convenient for the subsequent collection operation of the zinc ash.

[0033] Among them Figure 4 and Figure 7 As shown, a door 110 is hinged on one side of the second filter box 104. The door 110 is arranged above the filter screen 401 to facilitate regular cleaning of zinc ash inside the second filter box 104. A sealing strip is arranged between the door 110 and the second filter box 104 to ensure no air leakage.

[0034] Among them Figure 4-Figure 6As shown, the cross section of the push plate 209 is set to be triangular, and the length of the short rod 208 is greater than the height dimension of the first synchronous belt 205, which is convenient for pushing the zinc liquid with zinc ash into the guide groove 109, facilitating the subsequent zinc ash collection operation.

[0035] Among them Figure 2-Figure 4 As shown, one end of the exhaust pipe 402 is connected to the first filter box 103, and the exhaust pipe 402 is arranged on a side of the first filter box 103 away from the filter plate 302, and is used to heat the reflux zinc liquid.

[0036] When in use, the fan 403 is first started to draw the steam with zinc ash into the interior of the second filter box 104, and the zinc ash in the steam can be condensed on the surface of the filter 401 after the steam temperature is reduced. The gas after zinc ash is removed is transported to other components through the exhaust pipe 402. During the start-up process of the fan 403, the first motor 214 is also in a starting state, and the two second synchronous belts 212 are driven to rotate synchronously through the rotating rod 213, and then the two first synchronous belts 205 are driven to rotate synchronously under the transmission cooperation of the synchronous wheel, thereby driving the connecting seat 206 and the push plate 209 to move their positions, pushing the zinc ash floating on the surface of the zinc liquid into the guide groove 109, and the liquid in the guide groove 109 passes through the guide groove 109. The zinc liquid moves to the inside of the first filter box 103 through the conveying pipe 105, and the zinc liquid flows on the surface of the partition 301. The zinc liquid and the zinc ash are separated by the filter plate 302. The zinc liquid flows to the bottom of the partition 301, so that it can be transported to the inside of the galvanizing pool 101 again through the pump and the reflux pipe 106. When the zinc ash needs to be centrally processed, the second motor is started to drive the screw 304 to rotate, so that the scraper 303 can scrape the zinc ash on the surface of the filter plate 302 and move it to the position of the discharge port 305. The user can collect the zinc ash in the first filter box 103 through the discharge port 305, and collect the zinc ash in the second filter box 104 through the box door 110.

[0037] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A zinc ash filtering device for hot-dip galvanizing, comprising a galvanizing pool (101), a furnace nose (102), a first filter box (103) and a second filter box (104), wherein the first filter box (103) is arranged at one side of the galvanizing pool (101), the galvanizing pool (101) and the first filter box (103) are connected via a delivery pipe (105) and a return pipe (106), valve bodies are arranged on the surfaces of the delivery pipe (105) and the return pipe (106), a pump is fixedly installed on the outside of the return pipe (106), the furnace nose (102) is arranged above the galvanizing pool (101), and the furnace nose (102) and the second filter box (104) are connected via a connecting pipe (107); It is characterized in that It also includes a moving mechanism (200), which is arranged above the galvanizing pool (101) and is used to cooperate with the conveying pipe (105) to convey zinc ash floating in the galvanizing pool (101) to the inside of the first filter box (103); A collecting mechanism (300), the collecting mechanism (300) being arranged inside the first filter box (103) and being used for collecting floating zinc ash; A zinc extraction mechanism (400) is arranged above the moving mechanism (200) and is used to filter zinc ash in zinc steam above the galvanizing pool (101).

2. A zinc ash filtering device for hot-dip galvanizing according to claim 1, characterized in that: The moving mechanism (200) comprises a support plate (201) fixedly arranged at the top end of the galvanizing pool (101), a first rotating rod (202) and a second rotating rod (203) being installed inside the support plate (201), the first rotating rod (202) and the second rotating rod (203) being rotatably connected to the inner wall of the support plate (201), a first synchronous wheel (204) being fixedly installed on the first rotating rod (202) and the second rotating rod (203), two first rotating rods (202) and two second rotating rods (203) being provided, four first synchronous wheels (204) being provided and being divided into two groups and symmetrically installed at the top end of the inner side of the galvanizing pool (101), Two of the first synchronous wheels (204) in one group are connected in transmission via a first synchronous belt (205); a connecting seat (206) is fixedly mounted on the surface of the first synchronous belt (205); two connecting seats (206) and two first synchronous belts (205) are provided and are symmetrically mounted on the inner side of a support plate (201) in two groups; a connecting rod (207) is rotatably mounted between the two connecting seats (206); short rods (208) are symmetrically mounted at the bottom of the connecting rod (207); a push plate (209) is fixedly mounted on one side of the short rod (208) away from the connecting rod (207); and the two first rotating rods (202) are connected via a driving assembly.

3. A zinc ash filtering device for hot-dip galvanizing according to claim 2, characterized in that: The driving assembly comprises a second synchronous wheel (210) fixedly connected to the first rotating rod (202); the second synchronous wheel (210) is arranged outside the support plate (201); a third synchronous wheel (211) is arranged on one side of the second synchronous wheel (210); the second synchronous wheel (210) and the third synchronous wheel (211) are connected to each other by a second synchronous belt (212); a rotating rod (213) is fixedly arranged between the two third synchronous wheels (211); one end of the rotating rod (213) is fixedly connected to the output end of the first motor (214); the first motor (214) is connected to the support plate (201) via a bracket (215); and the rotating rod (213) is rotatably connected to the bracket (215).

4. A zinc ash filtering device for hot-dip galvanizing according to claim 3, characterized in that: The collecting mechanism (300) comprises a partition (301) fixedly arranged inside the first filter box (103), the partition (301) being arranged between the conveying pipe (105) and the return pipe (106), a plurality of filter plates (302) being evenly distributed on the upper end of the partition (301), a scraper (303) being slidably arranged on one side of the filter plate (302), the size of the scraper (303) being compatible with the size of the filter plate (302), a screw (304) being arranged on the internal thread of the scraper (303), the screw (304) being rotatably connected to the partition (301), one end of the screw (304) extending into the interior of the partition (301) and being fixedly connected to the output end of the second motor, and a discharge port (305) being arranged on the top of the first filter box (103).

5. A zinc ash filtering device for hot-dip galvanizing according to claim 4, characterized in that: The zinc extraction mechanism (400) comprises a filter screen (401) slidably arranged inside the second filter box (104); the air inlet end of the connecting pipe (107) is arranged above the filter screen (401); an exhaust pipe (402) is fixedly arranged at the bottom of the second filter box (104); a fan (403) and a heater (404) are installed on the exhaust pipe (402); the heater (404) is located on a side of the fan (403) away from the second filter box (104); and fixed heaters (404) are symmetrically arranged on the side wall of the second filter box (104). The fixed plate (405) is arranged below the filter screen (401), and the fixed plate (405) is connected to the filter screen (401) via a plurality of telescopic rods (406), and a tension spring is sleeved on the outer side of the telescopic rods (406). A plurality of eccentric wheels (407) are also arranged below the filter screen (401), and the rotating shaft of the eccentric wheel (407) is rotatably connected to the inner wall of the second filter box (104), and one end of the rotating shaft of the eccentric wheel (407) extends to the outside of the second filter box (104) and is fixedly connected to the output end of the third motor.

6. A zinc ash filtering device for hot-dip galvanizing according to claim 5, characterized in that: A baffle (108) is fixedly installed inside the galvanizing pool (101), a guide groove (109) is provided on the upper surface of the baffle (108), the cross section of the guide groove (109) is arranged in an inverted trapezoidal shape, and the guide groove (109) is connected to the conveying pipe (105).

7. A zinc ash filtering device for hot-dip galvanizing according to claim 6, characterized in that: A box door (110) is hingedly connected to one side of the second filter box (104), and the box door (110) is arranged above the filter screen (401).

8. A zinc ash filtering device for hot-dip galvanizing according to claim 7, characterized in that: The cross section of the push plate (209) is set to be triangular, and the length of the short rod (208) is greater than the height dimension of the first synchronous belt (205).

9. A zinc ash filtering device for hot-dip galvanizing according to claim 8, characterized in that: One end of the exhaust pipe (402) is connected to the first filter box (103), and the exhaust pipe (402) is arranged on a side of the first filter box (103) away from the filter plate (302).

10. A method for using the zinc ash filtering device for hot-dip galvanizing according to claim 9, wherein the specific steps of use are as follows: S1, starting the fan (403) to draw the steam containing zinc ash into the interior of the second filter box (104), lowering the steam temperature so that the zinc ash in the steam can condense on the surface of the filter (401), and the gas after the zinc ash is removed is transported to other components through the exhaust pipe (402); S2. During the process of starting the fan (403), the first motor (214) is also in the starting state, and the two second synchronous belts (212) are driven to rotate synchronously through the rotating rod (213), and then the two first synchronous belts (205) are driven to rotate synchronously under the transmission cooperation of the synchronous wheel, thereby driving the connecting seat (206) and the push plate (209) to move their positions, and pushing the zinc ash floating on the surface of the zinc liquid into the inside of the guide groove (109); S3, the liquid in the guide groove (109) moves to the inside of the first filter box (103) through the delivery pipe (105), the zinc liquid flows on the surface of the partition (301), and the zinc liquid and the zinc ash are separated by the filter plate (302), and the zinc liquid flows to the bottom of the partition (301), so as to be transported to the inside of the galvanizing pool (101) again through the pump and the return pipe (106); S4. When the zinc ash needs to be processed centrally, the second motor is started to drive the screw rod (304) to rotate, so that the scraper (303) can scrape the zinc ash on the surface of the filter plate (302) and move it to the position of the discharge port (305). The user can collect the zinc ash inside the first filter box (103) through the discharge port (305), and can collect the zinc ash inside the second filter box (104) through the box door (110).

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