Circulating device for low-carbon steel hot galvanizing treatment

Abstract

The utility model discloses a circulating device for low-carbon steel hot galvanizing treatment, which relates to the technical field of low-carbon steel hot galvanizing treatment and comprises a cooling tank, low-carbon steel subjected to hot galvanizing is cooled by the cooling tank, and a degreasing tank for degreasing the low-carbon steel is arranged on the side surface of the cooling tank. A hydrochloric acid tank for derusting the low-carbon steel is arranged on the side face of the degreasing tank, a hot-melting zinc solution tank for galvanizing the low-carbon steel is arranged on the side face of the hydrochloric acid tank, a wind dewatering tank for stabilizing hot galvanizing of the low-carbon steel is arranged on the side face of the hot-melting zinc solution tank, and a circulating structure for circulating cooling water is arranged at the lower end of the cooling tank. A cooling mechanism for cooling low-carbon steel hot galvanizing is arranged in the wind dewatering tank, blowing cooling is conducted on the low-carbon steel hot galvanizing through the fan, a hot galvanizing layer is stabilized, air at the air inlet end of the fan is heated through the heating pipe, recycling of heat in the cooling tank is achieved, and the low-carbon steel hot galvanizing temperature is gradually reduced. And the effect of rapidly stabilizing hot galvanizing is achieved.

Description

Technical Field

[0001] This utility model relates to the field of hot-dip galvanizing treatment technology for low-carbon steel, specifically a circulating device for hot-dip galvanizing treatment of low-carbon steel. Background Technology

[0002] Low-carbon steel, also known as mild steel, refers to carbon steel with a carbon content of less than 0.25%. This type of steel is widely used in engineering structural components. Hot-dip galvanizing can effectively improve the corrosion resistance of low-carbon steel, leading to its widespread application. However, the hot-dip galvanizing process requires maintaining a high temperature, resulting in extremely high temperatures for the galvanized steel. Cooling is typically achieved through air or water cooling, which is difficult and causes the water temperature to rise rapidly after cooling, making recycling inconvenient. This not only wastes a large amount of water resources but also results in the loss of heat energy in the water, increasing production costs and reducing production efficiency.

[0003] Based on this, a circulating device for hot-dip galvanizing of low-carbon steel is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0004] The purpose of this invention is to provide a circulating device for hot-dip galvanizing of low-carbon steel to solve the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A circulating device for hot-dip galvanizing of low-carbon steel includes a cooling tank for cooling the low-carbon steel after hot-dip galvanizing. A degreasing tank for degreasing the low-carbon steel is located on the side of the cooling tank. A hydrochloric acid tank for rust removal is located on the side of the degreasing tank. A hot-melt zinc solution tank for galvanizing the low-carbon steel is located on the side of the hydrochloric acid tank. An air-cooling tank for stabilizing the hot-dip galvanizing of the low-carbon steel is located on the side of the hot-melt zinc solution tank. A circulating cooling water circulation structure is located at the lower end of the cooling tank. A cooling mechanism for cooling the low-carbon steel during hot-dip galvanizing is located inside the air-cooling tank.

[0007] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0008] In one alternative: the circulation structure includes a water pumping base, and the lower end of the cooling pool is provided with several water pumping bases. The water pumping bases are connected to a No. 1 water supply pipe, and the several No. 1 water supply pipes are connected to one end of a No. 2 water supply pipe. The other end of the No. 2 water supply pipe is connected to a water pump, and the water pump is connected to a heat-conducting component that provides heat energy for the thermal desorption operation of the air desorption pool.

[0009] In one alternative: the heat-conducting component includes a water inlet seat, which is connected to one end of a No. 3 water supply pipe, and the other end of the No. 3 water supply pipe is connected to a water pump. Two heating pipes are connected to the side of the water inlet seat, and the heating pipes are embedded in the inner wall of the air desalination tank.

[0010] In one alternative: the cooling mechanism includes a fan, several fans are fixedly connected to the inner wall of the cooling tank, one end of the heating pipe is connected to the water outlet seat, the lower end of the water outlet seat is connected to one end of the return pipe, and the other end of the return pipe is connected to a cooling element for cooling the coolant inside the cooling tank.

[0011] In one alternative embodiment: the cooling element includes a refrigerator, the refrigerator has a cooling pipe inside, the cooling pipe has a refrigerant inside, the refrigerant is connected to a turbine compressor, the turbine compressor has a condenser connected to its side, the condenser has a cooling fan on its side to cool the condenser, the hot water inlet of the cooling pipe is connected to a return pipe, the cold water outlet of the cooling pipe is connected to a first return pipe, the first water supply pipe is connected to two second return pipes, the upper end of the second return pipes is connected to several third return pipes, the upper end of the third return pipes is connected to a return water seat, and a return water seat is provided on each side of the pump seat.

[0012] In one alternative: the surface of the No. 1 water pipe is provided with an explosion-proof mesh.

[0013] In one alternative: the surface of the heating tube is provided with heat-conducting fins.

[0014] In one alternative: the water pumping end of the pumping seat is equipped with a filter screen.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model uses a fan to blow air to cool and stabilize the hot-dip galvanized layer of low-carbon steel. The air at the fan inlet is heated by a heating tube, which realizes the recovery and utilization of heat inside the cooling pool, thereby gradually reducing the hot-dip galvanizing temperature of the low-carbon steel and achieving rapid stabilization of the hot-dip galvanizing process.

[0017] 2. This utility model sets a return water seat on each side of the water pump seat, so that the high-temperature coolant and the low-temperature coolant in the cooling pool form a backflow, which drives the new coolant to continuously flush the hot-dip galvanized surface of the low-carbon steel, so that the hot-dip galvanized surface of the low-carbon steel cools down evenly, accelerates the cooling of the hot-dip galvanized low-carbon steel, and prevents the hot-dip galvanized layer from being damaged due to uneven temperature when the low-carbon steel cools down. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the No. 1 reflux pipe of this utility model.

[0020] Figure 3 This is a schematic diagram of the fan structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the refrigerator of this utility model.

[0022] Figure 5 This is a schematic diagram of the cooling fan of this utility model.

[0023] Figure label annotations: 101. Cooling pool, 102. Degreasing pool, 103. Hydrochloric acid pool, 104. Hot melt zinc solution pool, 105. Air degreasing pool, 201. Pump seat, 202. No. 1 water supply pipe, 203. No. 2 water supply pipe, 204. Water pump, 205. No. 3 water supply pipe, 206. Inlet seat, 207. Fan, 208. Heating pipe, 209. Outlet seat, 210. Return pipe, 211. Refrigerator, 212. No. 1 return pipe, 213. No. 2 return pipe, 214. No. 3 return pipe, 215. Return water seat, 301. Turbine compressor, 302. Refrigeration pipe, 303. Condenser pipe, 304. Cooling fan. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] In one embodiment, such as Figures 1-5 As shown, a circulating device for hot-dip galvanizing low-carbon steel includes a cooling tank 101 for cooling the galvanized low-carbon steel. A degreasing tank 102 for degreasing the low-carbon steel is located on the side of the cooling tank 101. A hydrochloric acid tank 103 for rust removal is located on the side of the degreasing tank 102. A hot-melt zinc solution tank 104 for galvanizing the low-carbon steel is located on the side of the hydrochloric acid tank 103. An air-cooling tank 105 for stabilizing the hot-dip galvanizing of the low-carbon steel is located on the side of the hot-melt zinc solution tank 104. A circulating cooling water circulation structure is located at the lower end of the cooling tank 101. The air-cooling tank 105 is equipped with a cooling mechanism to cool down the low-carbon steel during hot-dip galvanizing. The low-carbon steel is transported by a crane and moved into the degreasing tank 102. The surface of the low-carbon steel is degreased by the degreasing liquid in the degreasing tank 102. The surface of the low-carbon steel is derusted by the hydrochloric acid tank 103. The low-carbon steel is hot-dip galvanized by the hot-melt zinc solution tank 104. The low-carbon steel is cooled and cleaned by the cooling liquid in the cooling tank 101. The surface of the low-carbon steel is stabilized by the air-cooling tank 105 to accelerate the cooling of the hot-dip galvanized layer.

[0026] In one embodiment, such as Figure 2As shown, the circulation structure includes a water pumping base 201. Several water pumping bases 201 are provided at the lower end of the cooling pool 101. The water pumping base 201 is connected to a first water supply pipe 202. Several first water supply pipes 202 are connected to one end of a second water supply pipe 203. The other end of the second water supply pipe 203 is connected to a water pump 204. The water pump 204 is connected to a heat-conducting component that provides heat energy for the thermal desorption operation of the air desorption tank 105. Power is provided by the water pump 204, and the water pumping base 201 draws out the heated coolant inside the cooling pool 101. The coolant enters the water pump 204 through the second water supply pipe 203, providing conditions for utilizing the heat energy inside the cooling pool 101.

[0027] In one embodiment, such as Figure 2 and Figure 3 As shown, the heat-conducting component includes a water inlet seat 206, which is connected to one end of a No. 3 water supply pipe 205. The other end of the No. 3 water supply pipe 205 is connected to a water pump 204. Two heating pipes 208 are connected to the side of the water inlet seat 206. The heating pipes 208 are embedded in the inner wall of the air dehydration tank 105. Power is provided by the water pump 204. The heated coolant enters the water inlet seat 206 through the No. 3 water supply pipe 205. The water inlet seat 206 divides the coolant into the two heating pipes 208, providing heat energy to the air dehydration tank 105.

[0028] In one embodiment, such as Figure 2 and Figure 3 As shown, the cooling mechanism includes a fan 207. Several fans 207 are fixedly connected to the inner wall of the cooling tank 105. One end of the heating pipe 208 is connected to the water outlet seat 209. The lower end of the water outlet seat 209 is connected to one end of the return pipe 210. The other end of the return pipe 210 is connected to a cooling element that cools the coolant inside the cooling tank 101. Air is blown by the fan 207, and the air at the air inlet of the fan 207 is heated by the heating pipe 208, so as to realize the recovery and utilization of heat inside the cooling tank 101. The fan 207 blows air to cool the low carbon steel hot-dip galvanizing. The fan 207 gradually lowers the temperature under the influence of the heating pipe 208, which plays a role in accelerating the stabilization of hot-dip galvanizing.

[0029] In one embodiment, such as Figure 2 and Figure 4As shown, the cooling element includes a refrigerator 211, which has a cooling pipe inside. A refrigeration pipe 302 is installed within the cooling pipe, and the refrigeration pipe 302 is connected to a turbine compressor 301. A condenser pipe 303 is connected to the side of the turbine compressor 301. A cooling fan 304 is installed on the side of the condenser pipe 303 to cool it. The hot water inlet of the cooling pipe is connected to a return pipe 210, and the cold water outlet is connected to a first return pipe 212. The first water supply pipe 202 is connected to two second return pipes 213. Several third return pipes 214 are connected to the upper ends of the second return pipes 213. A return water seat 215 is connected to the upper ends of the third return pipes 214. A return water seat 215 is provided on each side of the pump seat 201. The coolant that has dissipated some heat is transported through the cooperation of the outlet seat 209 and the return pipe 210. The refrigerant exits the refrigerator 211 and cools the coolant through the refrigeration pipe 302. The working volume is changed by the relative movement of the scroll plate inside the turbine compressor 301 in the refrigerator 211, thereby compressing the refrigerant. The high-temperature refrigerant enters the condenser 303 and is cooled by the cooling fan 304. The coolant is fed into the second return pipe 213 through the first return pipe 212. The coolant is fed into the return water seat 215 through the cooperation of the second return pipe 213 and the third return pipe 214. The coolant is then fed back into the cooling pool 101 through the return water seat 215, which lowers the temperature of the coolant inside the cooling pool 101. By setting a return water seat 215 on each side of the pump seat 201, the high-temperature coolant and the low-temperature coolant inside the cooling pool 101 form a reflux, so that the new coolant continuously washes the hot-dip galvanized surface of the low-carbon steel, accelerating the cooling of the low-carbon steel.

[0030] The above embodiment discloses a circulating device for hot-dip galvanizing of low-carbon steel. The low-carbon steel is transported by a crane and moved into a degreasing tank 102. The surface of the low-carbon steel is degreased by a degreasing solution provided in the degreasing tank 102. The surface of the low-carbon steel is then derusted in a hydrochloric acid tank 103. Hot-dip galvanizing is performed on the low-carbon steel in a hot-melt zinc solution tank 104. The low-carbon steel is then cooled and its surface cleaned by a cooling solution provided in a cooling tank 101. The surface of the low-carbon steel is stabilized and the hot-dip galvanized layer is cooled more quickly in an air-cooling tank 105. Power is provided by a water pump 204, and a water pump 201 pumps water from the heated solution inside the cooling tank 101. Coolant is extracted and enters the water pump 204 through the second water pipe 203, providing conditions for utilizing the heat energy inside the cooling pool 101. Powered by the water pump 204, the heated coolant enters the inlet seat 206 through the third water pipe 205. The inlet seat 206 then diverts the heated coolant into the two heating pipes 208, providing heat energy to the air desulfurization tank 105. Air is blown by the fan 207, and the air at the air inlet of the fan 207 is heated by the heating pipes 208, realizing the recovery and utilization of heat inside the cooling pool 101. The hot air blown by the fan 207 cools the low carbon steel hot-dip galvanizing process, accelerating the stabilization of hot-dip galvanizing.

[0031] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A circulating device for hot-dip galvanizing of low-carbon steel, comprising a cooling tank (101) for cooling the low-carbon steel after hot-dip galvanizing, wherein a degreasing tank (102) for degreasing the low-carbon steel is provided on the side of the cooling tank (101), a hydrochloric acid tank (103) for rust removal of the low-carbon steel is provided on the side of the degreasing tank (102), a hot-melt zinc solution tank (104) for galvanizing the low-carbon steel is provided on the side of the hydrochloric acid tank (103), and an air-cooling tank (105) for stabilizing the hot-dip galvanizing of low-carbon steel is provided on the side of the hot-melt zinc solution tank (104), characterized in that, The cooling pool (101) is equipped with a circulating cooling water circulation structure at the lower end, and the air dehydration pool (105) is equipped with a cooling mechanism for cooling the low carbon steel hot-dip galvanized.

2. The circulating device for hot-dip galvanizing of low-carbon steel according to claim 1, characterized in that, The circulation structure includes a water pumping base (201). The lower end of the cooling pool (101) is provided with several water pumping bases (201). The water pumping bases (201) are connected to a first water supply pipe (202). Several first water supply pipes (202) are connected to one end of a second water supply pipe (203). The other end of the second water supply pipe (203) is connected to a water pump (204). The water pump (204) is connected to a heat-conducting component that provides heat energy for the thermal desorption operation of the air desorption pool (105).

3. The circulating device for hot-dip galvanizing of low-carbon steel according to claim 2, characterized in that, The heat-conducting component includes a water inlet seat (206), which is connected to one end of a No. 3 water supply pipe (205). The other end of the No. 3 water supply pipe (205) is connected to a water pump (204). The side of the water inlet seat (206) is connected to two heating pipes (208), which are embedded in the inner wall of the air desalination tank (105).

4. A circulating device for hot-dip galvanizing of low-carbon steel according to claim 3, characterized in that, The cooling mechanism includes a fan (207), and several fans (207) are fixedly connected to the inner wall of the air desalination tank (105). One end of the heating pipe (208) is connected to the water outlet seat (209), the lower end of the water outlet seat (209) is connected to one end of the return pipe (210), and the other end of the return pipe (210) is connected to a cooling element that cools the coolant inside the cooling tank (101).

5. A circulating device for hot-dip galvanizing of low-carbon steel according to claim 4, characterized in that, The cooling element includes a refrigerator (211), which has a cooling pipe inside. The cooling pipe has a refrigeration pipe (302) inside. The refrigeration pipe (302) has a refrigerant inside. The refrigeration pipe (302) is connected to a turbine compressor (301). The turbine compressor (301) is connected to a condenser pipe (303) on its side. The condenser pipe (303) has a cooling fan (304) on its side to cool the condenser pipe (303). The hot water input end of the cooling pipe is connected to a return pipe (210). The cold water output end of the cooling pipe is connected to a first return pipe (212). The first water supply pipe (202) is connected to two second return pipes (213). The upper end of the second return pipe (213) is connected to several third return pipes (214). The upper end of the third return pipe (214) is connected to a return water seat (215). A return water seat (215) is provided on each side of the pump seat (201).

6. A circulating device for hot-dip galvanizing of low-carbon steel according to claim 2, characterized in that, The surface of the No. 1 water pipe (202) is equipped with an explosion-proof mesh.

7. A circulating device for hot-dip galvanizing of low-carbon steel according to claim 3, characterized in that, The surface of the heating tube (208) is provided with heat-conducting fins.

8. A circulating device for hot-dip galvanizing of low-carbon steel according to claim 2, characterized in that, The water pumping end of the pumping seat (201) is equipped with a filter screen.

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