Hot galvanizing furnace for hot galvanizing processing of electric iron accessories

Abstract

The invention discloses a hot galvanizing furnace for hot galvanizing processing of electric iron accessories, and relates to the technical field of hot galvanizing furnaces, dust suction pipes are installed on the two sides of a furnace body, dust suction holes are formed in the tops of the dust suction pipes at equal intervals, supporting sleeves are installed on the top of a supporting frame, and a dust separation pipe is slidably connected between the inner sides of every two adjacent supporting sleeves; hot waste gas flows through the dust collection heads and enters the dust separation pipe in the tangential direction of the dust separation pipe, cyclone is formed after the hot waste gas enters the dust separation pipe, under the action of centrifugal force, large-particle impurities in the waste gas collide with the inner wall of the dust separation pipe, and under the action of gravity, the large-particle impurities in the waste gas are separated from the inner wall of the dust separation pipe. Large-particle impurities fall to the bottom of the inner side of the dust separation pipe, most of the large-particle impurities in the waste gas are collected, the filtering burden of a follow-up filter element is reduced, the service life of the filter element is prolonged, the filter screen cylinder plays a role in filtering and isolating, and the stability of follow-up filtering is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of hot-dip galvanizing furnaces, and specifically to a hot-dip galvanizing furnace for hot-dip galvanizing processing of electric power iron accessories. Background Technique

[0002] Hot-dip galvanizing is a heat treatment process widely applied worldwide. When electric power iron accessories are subjected to hot-dip galvanizing processing, a relatively large amount of industrial waste gas pollutants are generated. If these waste gases are not treated and are allowed to evaporate into the air environment, it not only causes waste of energy, but also pollutes the environment of the production workshop and poses a threat to the health of the staff.

[0003] In the Chinese patent with the application number CN202421009360.3 and the name of "A Hot-dip Galvanizing Furnace for Hot-dip Galvanizing Processing", this patent is provided with an absorption box, an absorption pipe, a connecting pipe, two treatment boxes, valve one, valve two, etc. Through valve one and valve two, it is convenient to replace the filter plate without stopping the equipment;

[0004] The hot waste gas generated by hot-dip galvanizing contains particulate impurities such as zinc particles. This patent directly sucks the hot waste gas containing particulate impurities into the interior of the filtration box. The relatively large particulate impurities are likely to block the filter core, not only resulting in poor waste gas treatment effect, but also reducing the service life of the filter core, increasing the processing cost, and the heat contained in the hot waste gas generated by this hot-dip galvanizing furnace is directly filtered and discharged, and the heat contained in the hot waste gas cannot be effectively recycled. Summary of the Invention

[0005] The present invention provides a hot-dip galvanizing furnace for hot-dip galvanizing processing of electric power iron accessories, which can effectively solve the problems in the above background technique that this patent directly sucks the hot waste gas containing particulate impurities into the interior of the filtration box, the relatively large particulate impurities are likely to block the filter core, not only resulting in poor waste gas treatment effect, but also reducing the service life of the filter core, increasing the processing cost, and the heat contained in the hot waste gas generated by this hot-dip galvanizing furnace is directly filtered and discharged, and the heat contained in the hot waste gas cannot be effectively recycled.

[0006] To achieve the above object, the present invention provides the following technical solution: A hot-dip galvanizing furnace for hot-dip galvanizing processing of electric power iron accessories, including a furnace body, and filter heat exchange components are arranged on both sides of the furnace body, and the filter heat exchange components include dust suction pipes;

[0007] Dust suction pipes are installed on both sides of the furnace body, dust suction holes are equidistantly opened at the top of the dust suction pipes, two support frames are arranged on both sides of the furnace body, support sleeves are installed at the tops of the support frames, and a dust separation pipe is slidably connected between the inner sides of two adjacent support sleeves, and dust suction heads are equidistantly connected to one side of the bottom of the dust separation pipe;

[0008] There are two support columns arranged between two adjacent ones of the support frames. Heat insulation cylinders are fixed at the tops of two adjacent support columns, and the heat insulation cylinders are fixedly sleeved outside two adjacent support sleeves.

[0009] A filter screen cylinder is installed between the inner side of the dust separation pipe and the outer side of the adjacent dust suction pipe.

[0010] An annular box is installed outside the support sleeve, and a number of heat exchange pipes are connected between two adjacent annular boxes. The heat exchange pipes are in contact with the outer side of the dust separation pipe.

[0011] According to the above technical solution, a swing opening is provided at a position corresponding to the dust suction head on the outer side of the heat insulation cylinder. The top end of the dust suction head penetrates through the swing opening. A shielding plate is connected between the dust suction heads on the same side. The inner side of the shielding plate is in contact with the outer side of the heat insulation cylinder, and the length of the shielding plate is greater than the length of the swing opening.

[0012] According to the above technical solution, a swing cylinder is installed on one side of the support column. The output end of the swing cylinder is connected to one end of a linkage rod. Sealing openings are provided at both ends of the bottom of the heat insulation cylinder. The other end of the linkage rod penetrates through the adjacent sealing openings and is connected to the bottom of the dust separation pipe. A sealing plate is connected to the outer side of the linkage rod. The inner side of the sealing plate is in contact with the outer side of the heat insulation cylinder, and the length of the sealing plate is greater than the length of the sealing opening.

[0013] According to the above technical solution, one end of the filter screen cylinder is connected with a threaded joint, and the other end of the filter screen cylinder is connected with a plugging ring. A number of reinforcing ribs are connected between the threaded joint and the plugging ring, and the filter screen cylinder is fixed by the reinforcing ribs.

[0014] According to the above technical solution, the outer side of the threaded joint is connected to one side support sleeve through a threaded hole. The inner side of the threaded joint is in contact with the outer side of the dust suction pipe. The outer side of the plugging ring is in contact with the inner side of the other side support sleeve, and the inner side of the plugging ring is in contact with the outer side of the dust suction pipe.

[0015] According to the above technical solution, a water inlet main pipe is installed at one end of the furnace body, and a water discharge main pipe is installed at the other end of the furnace body. A water delivery pump is installed at one end of the water inlet main pipe, and the water outlet end of the water delivery pump is connected to one end of the water inlet main pipe. Water inlet branch pipes are connected between the water inlet main pipe and two adjacent annular boxes. Water discharge branch pipes are connected between the water discharge main pipe and two adjacent annular boxes. A water control valve is connected between the water inlet branch pipe and the water discharge branch pipe. One end of the water discharge main pipe is connected to one end of a drain valve.

[0016] According to the above technical solution, a collecting pipe is connected to one side of the water delivery pump. Both ends of the collecting pipe are connected to dust suction joints through dust suction hoses, and the two dust suction joints are respectively connected to one ends of two dust suction pipes.

[0017] According to the above technical solution, a cleaning and filtering assembly is provided outside the furnace body, and the cleaning and filtering assembly includes a dust discharge port;

[0018] A dust discharge port is opened at the bottom of the support sleeve. A sealing ring is rotatably connected to the outside of the support sleeve and outside the dust discharge port. A communication port is opened at the top of the sealing ring. An aerogel ring is movably embedded at one end of the dust separation pipe inside the support sleeve. Both ends of the aerogel ring are connected to one end of a high-temperature rope. The other ends of the high-temperature ropes respectively penetrate through the top end of the support sleeve. A suction box is installed on one side of the support frame and above the dust discharge port;

[0019] The other end of the drainage main pipe is connected to one end of a cleaning water valve. The other end of the cleaning water valve is connected to a cleaning water pipe. A heat preservation tank is connected in the middle of the cleaning water pipe. Two filter boxes are installed at the bottom of the collection pipe. Three filter cores are installed inside the filter boxes. A spray water tank is installed on one side of the filter boxes. A number of spray water pipes are connected to one side of the spray water tank. The bottom of the spray water pipes is connected to a number of spray heads. The spray water pipes are located above the filter cores;

[0020] The bottom of the filter box is connected to one end of a three-way pipe. The other two ends of the three-way pipe are respectively connected to one end of a sewage discharge valve and one end of a suction valve. A guiding pipe is connected between the other ends of the two suction valves. An air suction pump is installed on one side of the guiding pipe. The air suction end of the air suction pump is connected to the middle of the outside of the guiding pipe.

[0021] According to the above technical solution, one side of the water inlet main pipe is connected to a water delivery hose through a water delivery valve. The top end of the water delivery hose is connected to a water delivery joint. A sewage discharge groove is installed at the bottom of the heat insulation cylinder and below the dust suction head;

[0022] A gas distribution pipe is connected to the bottom of the collection pipe and above the filter boxes. The two ends of the gas distribution pipe are connected to the top surfaces of the two filter boxes through two air control valves.

[0023] According to the above technical solution, the water control valve, the drain valve, the cleaning water valve, the air control valve, the sewage discharge valve and the suction valve are all electric control valves. The input ends of the water control valve, the drain valve, the water delivery pump, the cleaning water valve, the air control valve, the sewage discharge valve, the suction valve and the air suction pump are electrically connected to the output end of an external power supply through a controller.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. A filtering and heat exchange component is provided. Under the guiding action of the suction pump, the hot waste gas flows through the dust suction head and enters the inside of the dust separation pipe tangentially through the dust separation pipe. After the hot waste gas enters the inside of the dust separation pipe, a cyclone is formed. Under the action of centrifugal force, the large particle impurities in the waste gas cyclone impact on the inner wall of the dust separation pipe. Under the action of gravity, the large particle impurities fall to the inner bottom of the dust separation pipe. The centrifugal force cooperates with the gravity to collect most of the large particle impurities in the waste gas, avoiding the blockage of the filter holes of the subsequent filter element by large particle impurities, reducing the filtering burden of the subsequent filter element, prolonging the service life of the filter element, reducing the filtering cost, and the filter screen cylinder plays a role of filtering and isolation, avoiding the flocculent impurities in the waste gas from entering the inside of the dust suction pipe through the dust suction holes, and ensuring the stability of the subsequent filtering;

[0026] When the dust suction head absorbs waste gas, under the connection action of the linkage rod, the swing cylinder drives the dust separation pipe to swing inside the support sleeve, and then drives the dust suction head to swing inside the swing port. Compared with the prior art, the dust suction range of the dust suction head is wider, fully protecting the on-site working environment and having a better dust suction effect;

[0027] When the waste gas enters the inside of the dust separation pipe, the water delivery pump, the water control valve and the drain valve are opened, and the external clean water enters the inside of the heat exchange pipe. The heat exchange pipe is attached to the dust separation pipe. Under the action of heat conduction, the hot waste gas heats the flowing clean water. The heated clean water can be used for industrial production and heating. While the dust separation pipe filters the waste gas, it also recovers the heat in the waste gas, not only reducing environmental pollution, but also improving the energy utilization efficiency;

[0028] When the filter screen cylinder needs to be cleaned, the rotary threaded joint is separated from the support sleeve, the dust suction joint is separated from the dust suction pipe, and the filter screen cylinder can be taken out of the dust separation pipe by holding the threaded joint, which is convenient for cleaning and replacing the filter screen cylinder, and the daily maintenance is convenient and fast.

[0029] 2. A cleaning and filtering component is provided. When there is a lot of dust accumulated at the bottom of the dust separation pipe, the rotary sealing ring aligns the communication port with the dust discharge port, and the high-temperature rope is pulled to drive the aerogel ring to move inside the dust separation pipe. The dust inside the dust separation pipe is pushed to move to the dust discharge port position by the movement of the aerogel ring, and the dust falls into the inside of the extraction box under the action of gravity. The dust collection is convenient and the operation is simple;

[0030] When the dust suction pipe and the dust separation pipe need to be cleaned, the dust suction joint is separated from the dust suction pipe, and the water delivery joint is connected to the dust suction pipe. The clean water transported by the water delivery pump can flow through the water delivery valve, the water delivery hose and the water delivery joint into the inside of the dust suction pipe and the dust separation pipe. The dust separation pipe and the dust suction pipe can be cleaned by using the flushing of the clean water. There is no need to disassemble and clean the dust suction pipe and the dust separation pipe. The sewage after cleaning is discharged from the dust suction head and flows into the sewage discharge tank, and the daily cleaning is more convenient and fast;

[0031] When the filter element needs to be cleaned after use, open the cleaning water valve and close the drain valve. The heated water flow inside the heat exchange tube flows through the inside of the heat preservation tank. The hot water mixes with the cleaning agent and enters the inside of the spray water tank, and finally flows through the spray water pipe and sprays out from the spray head to clean the used filter element, eliminating the need for manual cleaning of each filter element one by one, reducing the labor intensity of workers. At the same time, cleaning the filter element with hot water provides a better cleaning effect and further effectively utilizes energy.

[0032] In summary, in the filter heat exchange assembly, the hot waste gas flows through the dust suction head and enters the inside of the dust separation tube tangentially through the dust separation tube. The dust separation tube initially filters the waste gas. Then, the filter mesh cylinder performs secondary filtration on the waste gas. Subsequently, in the cleaning filter assembly, the filter element inside the filter box further filters the waste gas in multiple layers. The two assemblies cooperate with each other to ensure the filtration quality of the waste gas, making the use of the hot dip galvanizing furnace more environmentally friendly during the processing of electric power iron accessories. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0034] In the drawings:

[0035] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0036] Figure 2 is a structural schematic diagram of the filter heat exchange assembly of the present invention;

[0037] Figure 3 is a structural schematic diagram of the installation of the heat insulation cylinder of the present invention;

[0038] Figure 4 is a structural schematic diagram of the installation of the baffle of the present invention;

[0039] Figure 5 is from the present invention Figure 4 enlarged view of area A;

[0040] Figure 6 is a structural schematic diagram of the installation of the dust suction head of the present invention;

[0041] Figure 7 is a structural schematic diagram of the installation of the dust separation tube of the present invention;

[0042] Figure 8 is a structural schematic diagram of the installation of the filter mesh cylinder of the present invention;

[0043] Figure 9 is a structural schematic diagram of the installation of the dust suction pipe of the present invention;

[0044] Figure 10It is a schematic structural diagram of the cleaning and filtering component of the present invention;

[0045] Figure 11 It is a schematic installation structure diagram of the heat preservation tank of the present invention;

[0046] Figure 12 It is a schematic installation structure diagram of the water spraying pipe of the present invention;

[0047] Reference numerals in the figure: 1, furnace body;

[0048] 2, filtering and heat exchange component; 201, dust suction pipe; 202, dust suction hole; 203, support frame; 204, support sleeve; 205, dust separation pipe; 206, dust suction head; 207, support column; 208, heat insulation cylinder; 209, swing port; 210, baffle plate; 211, swing cylinder; 212, linkage rod; 213, sealing port; 214, sealing plate; 215, threaded joint; 216, plugging ring; 217, reinforcing rib; 218, filter mesh cylinder; 219, annular box; 220, heat exchange pipe; 221, total water inlet pipe; 222, total water discharge pipe; 223, water inlet branch pipe; 224, water discharge branch pipe; 225, water control valve; 226, water discharge valve; 227, collecting pipe; 228, dust suction hose; 229, dust suction joint; 230, water transfer pump.

[0049] 3, cleaning and filtering component; 301, dust discharge port; 302, sealing ring; 303, communication port; 304, aerogel ring; 305, high-temperature rope; 306, extraction box; 307, water delivery hose; 308, water delivery valve; 309, water delivery joint; 310, sewage discharge tank; 311, clean water valve; 312, clean water pipe; 313, heat preservation tank; 314, filter box; 315, gas distribution pipe; 316, gas control valve; 317, filter element; 318, water spraying box; 319, water spraying pipe; 320, water spraying head; 321, three-way pipe; 322, sewage discharge valve; 323, air suction valve; 324, guiding pipe; 325, air suction pump. Specific embodiments

[0050] The following is a description of the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0051] Embodiment: As Figures 1-12As shown in the figure, the present invention provides a technical solution for a hot-dip galvanizing furnace for hot-dip galvanizing processing of electric power iron accessories, including a furnace body 1, and filter heat exchange components 2 are arranged on both sides of the furnace body 1. The filter heat exchange components 2 include a dust suction pipe 201, a dust suction hole 202, a support frame 203, a support sleeve 204, a dust separation pipe 205, a dust suction head 206, a support column 207, a heat insulation cylinder 208, a swing port 209, a baffle plate 210, a swing cylinder 211, a linkage rod 212, a sealing port 213, a sealing plate 214, a threaded joint 215, a plugging ring 216, a reinforcing rib 217, a filter screen cylinder 218, an annular box 219, a heat exchange pipe 220, a total water inlet pipe 221, a total water discharge pipe 222, a water inlet branch pipe 223, a water discharge branch pipe 224, a water control valve 225, a water discharge valve 226, a collecting pipe 227, a dust suction hose 228, a dust suction joint 229, and a water transfer pump 230;

[0052] Dust suction pipes 201 are installed on both sides of the furnace body 1, and dust suction holes 202 are equidistantly arranged at the top of the dust suction pipes 201. Two support frames 203 are arranged on both sides of the furnace body 1, and support sleeves 204 are installed at the top of the support frames 203. A dust separation pipe 205 is slidably connected between the inner sides of two adjacent support sleeves 204, and a dust suction head 206 is equidistantly connected to one side of the bottom of the dust separation pipe 205;

[0053] Two support columns 207 are arranged between two adjacent support frames 203, and a heat insulation cylinder 208 is fixed to the top of two adjacent support columns 207. The heat insulation cylinder 208 is fixedly sleeved on the outer sides of two adjacent support sleeves 204. A swing port 209 is opened at a position corresponding to the dust suction head 206 on the outer side of the heat insulation cylinder 208. The top end of the dust suction head 206 penetrates through the swing port 209. A baffle plate 210 is connected between the dust suction heads 206 on the same side. The inner side of the baffle plate 210 is attached to the outer side of the heat insulation cylinder 208. The length of the baffle plate 210 is greater than the length of the swing port 209. A swing cylinder 211 is installed on one side of the support column 207. The output end of the swing cylinder 211 is connected to one end of the linkage rod 212. Sealing ports 213 are opened at both ends of the bottom of the heat insulation cylinder 208. The other end of the linkage rod 212 penetrates through the adjacent sealing port 213 and is connected to the bottom of the dust separation pipe 205. A sealing plate 214 is connected to the outer side of the linkage rod 212. The inner side of the sealing plate 214 is attached to the outer side of the heat insulation cylinder 208. The length of the sealing plate 214 is greater than the length of the sealing port 213. Under the connection action of the linkage rod 212, the swing cylinder 211 can drive the dust separation pipe 205 to swing inside the support sleeve 204, thereby driving the dust suction head 206 to swing inside the swing port 209, increasing the dust suction range of the dust suction head 206, and having a better dust suction effect. When the dust suction head 206 moves inside the swing port 209, the baffle plate 210 shields the swing port 209, and the sealing plate 214 shields the heat insulation cylinder 208, ensuring the airtightness of the heat insulation cylinder 208;

[0054] A filter screen cylinder 218 is installed between the inner side of the dust separation pipe 205 and the outer side of the adjacent dust suction pipe 201. One end of the filter screen cylinder 218 is connected with a threaded joint 215, and the other end of the filter screen cylinder 218 is connected with a sealing ring 216. A number of reinforcing ribs 217 are connected between the threaded joint 215 and the sealing ring 216. The filter screen cylinder 218 is fixed by the reinforcing ribs 217. The reinforcing ribs 217 are made of iron and can fix the filter screen cylinder 218. The outer side of the threaded joint 215 is connected with one side support sleeve 204 through a threaded hole. The inner side of the threaded joint 215 fits against the outer side of the dust suction pipe 201. The outer side of the sealing ring 216 fits against the inner side of the other side support sleeve 204, and the inner side of the sealing ring 216 fits against the outer side of the dust suction pipe 201, ensuring the tightness between the support sleeve 204 and the dust separation pipe 205. When the filter screen cylinder 218 needs to be cleaned, rotate the threaded joint 215 to separate it from the support sleeve 204, separate the dust suction joint 229 from the dust suction pipe 201, and hold the threaded joint 215 to take out the filter screen cylinder 218 from the inside of the dust separation pipe 205, which is convenient for cleaning and replacing the filter screen cylinder 218;

[0055] An annular box 219 is installed on the outer side of the support sleeve 204. A number of heat exchange pipes 220 are connected between two adjacent annular boxes 219. The heat exchange pipes 220 are in contact with the outer side of the dust separation pipe 205. One end of the furnace body 1 is installed with a water inlet main pipe 221, and the other end of the furnace body 1 is installed with a water discharge main pipe 222. One end of the water inlet main pipe 221 is installed with a water pump 230. The water outlet end of the water pump 230 is connected with one end of the water inlet main pipe 221. A water inlet branch pipe 223 is connected between the water inlet main pipe 221 and two adjacent annular boxes 219. A water discharge branch pipe 224 is connected between the water discharge main pipe 222 and two adjacent annular boxes 219. A water control valve 225 is connected in the middle of the water inlet branch pipe 223 and the water discharge branch pipe 224. One end of the water discharge main pipe 222 is connected to one end of the drain valve 226;

[0056] Open the water control valve 225 in the middle of the water inlet branch pipe 223 and the water discharge branch pipe 224. The clear water pumped by the water pump 230 can flow through the water inlet main pipe 221, the water inlet branch pipe 223, the annular box 219, the heat exchange pipe 220, the water discharge branch pipe 224 and the water discharge main pipe 222, and finally flow out through the drain valve 226. When the hot waste gas generated by the hot-dip galvanizing furnace enters the inside of the dust separation pipe 205, under the action of heat conduction, the hot waste gas can heat the clear water flowing through the inside of the heat exchange pipe 220, and recycle the heat contained in the hot waste gas;

[0057] One side of the water pump 230 is connected with a collecting pipe 227. Both ends of the collecting pipe 227 are connected with dust suction joints 229 through dust suction hoses 228. The two dust suction joints 229 are respectively connected with one end of the two dust suction pipes 201. Rotating the dust suction joint 229 can separate and connect the dust suction joint 229 and the dust suction pipe 201;

[0058] A cleaning and filtering assembly 3 is provided outside the furnace body 1. The cleaning and filtering assembly 3 includes a dust discharge port 301, a sealing ring 302, a communication port 303, an aerogel ring 304, a high-temperature rope 305, a dust extraction box 306, a water delivery hose 307, a water delivery valve 308, a water delivery joint 309, a sewage discharge tank 310, a cleaning water valve 311, a cleaning water pipe 312, a heat preservation tank 313, a filtering box 314, a gas distribution pipe 315, a gas control valve 316, a filter element 317, a water spraying box 318, a water spraying pipe 319, a water spraying head 320, a tee pipe 321, a sewage discharge valve 322, an air suction valve 323, a guiding pipe 324 and an air suction pump 325;

[0059] A dust discharge port 301 is opened at the bottom of the support sleeve 204. A sealing ring 302 is rotatably connected to the outside of the support sleeve 204 and outside the dust discharge port 301. A communication port 303 is opened at the top of the sealing ring 302. An aerogel ring 304 is movably embedded at one end of the dust separation pipe 205 inside the support sleeve 204. Both ends of the aerogel ring 304 are connected to one end of a high-temperature rope 305. The other ends of the high-temperature ropes 305 respectively penetrate through the top end of the support sleeve 204. A dust extraction box 306 is installed on one side of the support frame 203 and above the dust discharge port 301. The aerogel ring 304 is a high-temperature resistant flexible ceramic aerogel with high-temperature resistance. When there is a large amount of dust accumulated at the bottom of the dust separation pipe 205, rotate the sealing ring 302 to align the communication port 303 with the dust discharge port 301. Pulling the high-temperature rope 305 can drive the aerogel ring 304 to move inside the dust separation pipe 205. When the aerogel ring 304 moves, it can push the dust inside the dust separation pipe 205 to move to the position of the dust discharge port 301. The dust can fall into the dust extraction box 306 under the action of gravity;

[0060] One side of the total water inlet pipe 221 is connected to a water delivery hose 307 through a water delivery valve 308. The top end of the water delivery hose 307 is connected to a water delivery joint 309. A sewage discharge tank 310 is installed at the bottom of the heat insulation cylinder 208 and under the dust suction head 206. Separate the dust suction joint 229 from the dust suction pipe 201, connect the water delivery joint 309 to the dust suction pipe 201, close the water control valve 225 connected to the water inlet branch pipe 223, and open the water delivery valve 308. The cleaning water delivered by the water delivery pump 230 can flow through the water delivery valve 308, the water delivery hose 307 and the water delivery joint 309 into the dust suction pipe 201, and then enter the dust separation pipe 205 through the dust suction holes 202. The dust separation pipe 205 and the dust suction pipe 201 can be cleaned by the flushing of the cleaning water. There is no need to disassemble and clean the dust suction pipe 201 and the dust separation pipe 205. The daily cleaning is convenient and fast. The sewage after cleaning is discharged from the dust suction head 206 and flows into the sewage discharge tank 310, which is convenient for collecting and treating the sewage;

[0061] The other end of the main drain pipe 222 is connected to one end of the clean water valve 311. The other end of the clean water valve 311 is connected to a clean water pipe 312. In the middle of the clean water pipe 312, there is a heat preservation tank 313 installed. At the bottom of the manifold 227, there are two filter boxes 314 installed. Inside the filter boxes 314, there are three filter cores 317 installed. On one side of the filter boxes 314, there is a water spraying tank 318 installed. On one side of the water spraying tank 318, there are several water spraying pipes 319 connected. At the bottom of the water spraying pipes 319, there are several water spraying nozzles 320 connected. The water spraying pipes 319 are located above the filter cores 317;

[0062] At the bottom of the manifold 227 and above the filter boxes 314, there is a gas distribution pipe 315 connected. Both ends of the gas distribution pipe 315 are connected to the top surfaces of the two filter boxes 314 through two gas control valves 316. When filtering waste gas, by controlling the gas control valves 316, the waste gas only flows through the inside of one filter box 314. When the filter cores 317 inside the used filter box 314 need to be cleaned and replaced, first, close the gas control valve 316 on the top of the used filter box 314, close the suction valve 323 at the bottom of the used filter box 314. Subsequently, open the gas control valve 316 on the top of the unused filter box 314, open the suction valve 323 at the bottom of the unused filter box 314. By flexibly controlling the gas control valves 316 and the suction valves 323, the flowing direction of the waste gas can be quickly switched, which is convenient for cleaning and replacing the filter cores 317 without stopping the equipment, facilitating the processing of the hot-dip galvanizing furnace;

[0063] The bottom of the filter box 314 is connected to one end of a three-way pipe 321. The other two ends of the three-way pipe 321 are respectively connected to one end of a sewage discharge valve 322 and one end of a suction valve 323. Between the other ends of the two suction valves 323, there is a guiding pipe 324 connected. On one side of the guiding pipe 324, there is a suction pump 325 installed. The suction end of the suction pump 325 is connected to the middle of the outside of the guiding pipe 324;

[0064] The water control valve 225, the drain valve 226, the clean water valve 311, the gas control valve 316, the sewage discharge valve 322, and the suction valve 323 are all electric control valves. The input ends of the water control valve 225, the drain valve 226, the water transfer pump 230, the clean water valve 311, the gas control valve 316, the sewage discharge valve 322, the suction valve 323, and the suction pump 325 are electrically connected to the output end of an external power supply through a controller. The controller can control each electrical component, facilitating automatic control.

[0065] Working principle and usage process of the present invention: When processing electric power iron accessories in a hot-dip galvanizing furnace, the suction pump 325 is started. Under the guiding action of the suction pump 325, the hot waste gas flows through the dust suction head 206 and enters the inside of the dust separation pipe 205 in a tangential direction through the dust separation pipe 205. After the hot waste gas enters the inside of the dust separation pipe 205, a cyclone is formed. Under the action of centrifugal force, the large-particle impurities in the waste gas cyclone impact on the inner wall of the dust separation pipe 205. Under the action of gravity, the large-particle impurities fall to the inner bottom of the dust separation pipe 205. The centrifugal force cooperates with gravity to collect most of the large-particle impurities in the waste gas, avoiding the blockage of the filter holes of the subsequent filter element 317 by large-particle impurities, reducing the filtration burden of the subsequent filter element 317, extending the service life of the filter element 317, reducing the filtration cost, and the filter net cylinder 218 plays a role of filtering and isolation, preventing the flocculent impurities in the waste gas from entering the inside of the dust suction pipe 201 through the dust suction holes 202, and ensuring the stability of subsequent filtration;

[0066] After the waste gas is filtered by the filter net cylinder 218, it then flows through the dust suction holes 202, the dust suction pipe 201, the dust suction joint 229, the dust suction hose 228 and the collecting pipe 227 in sequence, and enters the inside of the air distribution pipe 315. Open the air control valve 316 and the suction valve 323 corresponding to one side of the filter box 314, and close the sewage discharge valve 322 at the bottom of the corresponding filter box 314, so that the waste gas only flows through the inside of one filter box 314, and the filter element 317 inside the filter box 314 filters the waste gas in multiple layers;

[0067] When the dust suction head 206 absorbs waste gas, the swing cylinder 211 also operates. Under the connection action of the linkage rod 212, the swing cylinder 211 drives the dust separation pipe 205 to swing inside the support sleeve 204, and then drives the dust suction head 206 to swing inside the swing port 209. Compared with the prior art, the dust suction range of the dust suction head 206 is wider and the dust suction effect is better. When the dust suction head 206 moves inside the swing port 209, the baffle plate 210 blocks the swing port 209, and the sealing plate 214 blocks the heat insulation cylinder 208, ensuring the airtightness of the heat insulation cylinder 208 and the operation stability of the equipment;

[0068] When the waste gas enters the inside of the dust separation pipe 205, open the water delivery pump 230, the water control valve 225 and the drain valve 226. The external clear water flows through the water inlet main pipe 221, the water inlet branch pipe 223, the annular box 219, the heat exchange pipe 220, the drain branch pipe 224 and the drain main pipe 222, and finally flows out through the drain valve 226. The heat exchange pipe 220 is attached to the dust separation pipe 205, and both are made of copper alloy. When the hot waste gas flows through the inside of the dust separation pipe 205, under the action of heat conduction, the hot waste gas can heat the clear water flowing through it. The heated clear water can be used for industrial production and heating. While the dust separation pipe 205 filters the waste gas, it also recovers the heat in the waste gas, not only reducing environmental pollution, but also improving energy utilization efficiency;

[0069] When the filter screen cylinder 218 needs to be cleaned, the rotary threaded joint 215 is separated from the support sleeve 204, and the dust suction joint 229 is separated from the dust suction pipe 201. Holding the threaded joint 215, the filter screen cylinder 218 can be taken out from the inside of the dust separation pipe 205, which is convenient for cleaning and replacing the filter screen cylinder 218, and the daily maintenance is convenient and fast;

[0070] When there is a large amount of dust accumulated at the bottom of the dust separation pipe 205, the rotary sealing ring 302 is rotated to align the communication port 303 with the dust discharge port 301. The high-temperature rope 305 is pulled to drive the aerogel ring 304 to move inside the dust separation pipe 205. The movement of the aerogel ring 304 is used to push the dust inside the dust separation pipe 205 to move to the position of the dust discharge port 301, and the dust falls into the inside of the extraction box 306 under the action of gravity. The dust collection is convenient and the operation is simple;

[0071] When the dust suction pipe 201 and the dust separation pipe 205 need to be cleaned, the dust suction joint 229 is separated from the dust suction pipe 201, the water supply joint 309 is connected to the dust suction pipe 201, the water control valve 225 connected to the water inlet branch pipe 223 is closed, and the water supply valve 308 is opened. The cleaning water transported by the water supply pump 230 can flow through the water supply valve 308, the water supply hose 307 and the water supply joint 309 into the inside of the dust suction pipe 201, and then enter the inside of the dust separation pipe 205 through the dust suction holes 202. The dust separation pipe 205 and the dust suction pipe 201 can be cleaned by using the flushing of the cleaning water. There is no need to disassemble and clean the dust suction pipe 201 and the dust separation pipe 205. The sewage after cleaning is discharged from the dust suction head 206 and flows into the inside of the sewage discharge tank 310, which is convenient for collecting and treating the sewage, and the daily cleaning is more convenient and fast;

[0072] When the filter element 317 inside the filter box 314 needs to be cleaned and replaced, first, the air control valve 316 at the top of the used filter box 314 is closed, and the air suction valve 323 at the bottom of the used filter box 314 is closed. Subsequently, the air control valve 316 at the top of the unused filter box 314 is opened, and the air suction valve 323 at the bottom of the unused filter box 314 is opened. By flexibly controlling the air control valve 316 and the air suction valve 323, the direction of the waste gas flow can be quickly switched, which is convenient for cleaning and replacing the filter element 317 without stopping the equipment, ensuring the continuous processing of the hot-dip galvanizing furnace and higher processing efficiency of the electric power iron accessories;

[0073] When the filter element 317 needs to be cleaned after use, open the cleaning water valve 311, close the drain valve 226, the heated water flow inside the heat exchange tube 220 flows through the inside of the heat preservation tank 313, add a cleaning agent inside the heat preservation tank 313, the hot water and the cleaning agent are mixed and enter the inside of the spray water tank 318, and finally flow through the spray water pipe 319 and spray out from the spray head 320 to clean the used filter element 317, eliminating the need for manual cleaning of each filter element 317 one by one, reducing the labor intensity of workers. At the same time, cleaning the filter element 317 with hot water provides a better cleaning effect and further effectively utilizes energy;

[0074] In summary, in the filtration and heat exchange assembly 2, the hot waste gas flows through the dust suction head 206 and enters the inside of the dust separation pipe 205 in a tangential direction through the dust separation pipe 205. The dust separation pipe 205 initially filters the waste gas. Then, the filter mesh cylinder 218 performs a secondary filtration on the waste gas. Subsequently, in the cleaning and filtering assembly 3, the filter element 317 inside the filter box 314 further filters the waste gas in multiple layers. The two assemblies cooperate with each other to ensure the filtration quality of the waste gas, making the use of the hot dip galvanizing furnace more environmentally friendly during the processing of electric power iron accessories.

[0075] Finally, it should be noted that the above are only preferred examples of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A hot-dip galvanizing furnace for hot-dip galvanizing processing of electric power iron accessories, including a furnace body (1), characterized in that, On both sides of the furnace body (1), a filtering and heat exchange assembly (2) is provided, and the filtering and heat exchange assembly (2) includes a dust suction pipe (201); On both sides of the furnace body (1), a dust suction pipe (201) is installed. At equal intervals on the top of the dust suction pipe (201), dust suction holes (202) are provided. On both sides of the furnace body (1), two support frames (203) are provided. On the top of the support frames (203), support sleeves (204) are installed. A dust separation pipe (205) is slidably connected between the inner sides of two adjacent support sleeves (204). On one side of the bottom of the dust separation pipe (205), dust suction heads (206) are connected at equal intervals; Between two adjacent support frames (203), two support columns (207) are provided. On the top of two adjacent support columns (207), a heat insulation cylinder (208) is fixed, and the heat insulation cylinder (208) is fixedly sleeved on the outer sides of two adjacent support sleeves (204); A filter screen cylinder (218) is installed between the inner side of the dust separation pipe (205) and the outer side of the adjacent dust suction pipe (201); On the outer side of the support sleeve (204), an annular box (219) is installed. Between two adjacent annular boxes (219), a number of heat exchange pipes (220) are connected, and the heat exchange pipes (220) are in contact with the outer side of the dust separation pipe (205).

2. The hot-dip galvanizing furnace for hot-dip galvanizing processing of electric power iron accessories according to claim 1, characterized in that, At the position corresponding to the dust suction head (206) on the outer side of the heat insulation cylinder (208), a swinging port (209) is provided. The top end of the dust suction head (206) penetrates through the swinging port (209). Between the dust suction heads (206) on the same side, a shielding plate (210) is connected. The inner side of the shielding plate (210) is in contact with the outer side of the heat insulation cylinder (208), and the length of the shielding plate (210) is greater than the length of the swinging port (209).

3. The hot-dip galvanizing furnace for hot-dip galvanizing processing of electric iron accessories according to claim 2, characterized in that, On one side of the support column (207), a swinging cylinder (211) is installed. The output end of the swinging cylinder (211) is connected to one end of a linkage rod (212). At both ends of the bottom of the heat insulation cylinder (208), sealing ports (213) are provided. The other end of the linkage rod (212) penetrates through the adjacent sealing ports (213) and is connected to the bottom of the dust separation pipe (205). On the outer side of the linkage rod (212), a sealing plate (214) is connected. The inner side of the sealing plate (214) is in contact with the outer side of the heat insulation cylinder (208), and the length of the sealing plate (214) is greater than the length of the sealing port (213).

4. The hot-dip galvanizing furnace for hot-dip galvanizing processing of electric iron accessories according to claim 1, characterized in that, One end of the filter screen cylinder (218) is connected with a threaded joint (215), and the other end of the filter screen cylinder (218) is connected with a plugging ring (216). Between the threaded joint (215) and the plugging ring (216), a number of reinforcing ribs (217) are connected, and the filter screen cylinder (218) is fixed by the reinforcing ribs (217).

5. The hot-dip galvanizing furnace for hot-dip galvanizing processing of electric iron accessories according to claim 4, characterized in that, The outer side of the threaded joint (215) is connected to one side support sleeve (204) through a threaded hole. The inner side of the threaded joint (215) is in contact with the outer side of the dust suction pipe (201). The outer side of the plugging ring (216) is in contact with the inner side of the other side support sleeve (204), and the inner side of the plugging ring (216) is in contact with the outer side of the dust suction pipe (201).

6. The hot-dip galvanizing furnace for hot-dip galvanizing processing of electric power iron accessories according to claim 1, characterized in that, One end of the furnace body (1) is installed with a main water inlet pipe (221), the other end of the furnace body (1) is installed with a main drain pipe (222), one end of the main water inlet pipe (221) is installed with a water transfer pump (230), the water outlet end of the water transfer pump (230) is connected to one end of the main water inlet pipe (221), a water inlet branch pipe (223) is connected between the main water inlet pipe (221) and two adjacent annular boxes (219), a drain branch pipe (224) is connected between the main drain pipe (222) and two adjacent annular boxes (219), a water control valve (225) is connected in the middle of the water inlet branch pipe (223) and the drain branch pipe (224), and one end of the main drain pipe (222) is connected to one end of a drain valve (226).

7. The hot-dip galvanizing furnace for hot-dip galvanizing processing of electric iron accessories according to claim 6, characterized in that, One side of the water transfer pump (230) is connected with a collecting pipe (227), both ends of the collecting pipe (227) are connected with dust suction connectors (229) through dust suction hoses (228), and the two dust suction connectors (229) are respectively connected to one end of two dust suction pipes (201).

8. The hot-dip galvanizing furnace for hot-dip galvanizing processing of electric power iron accessories according to claim 7, characterized in that, A cleaning and filtering assembly (3) is arranged outside the furnace body (1), and the cleaning and filtering assembly (3) includes a dust discharge port (301); A dust discharge port (301) is opened at the bottom of the support sleeve (204), a sealing ring (302) is rotatably connected outside the support sleeve (204) and outside the dust discharge port (301), a communication port (303) is opened at the top of the sealing ring (302), an aerogel ring (304) is movably embedded inside the support sleeve (204) and at one end of the dust separation pipe (205), both ends of the aerogel ring (304) are connected to one end of a high-temperature rope (305), the other ends of the high-temperature ropes (305) respectively penetrate through the top end of the support sleeve (204), and a draw box (306) is installed on one side of the support frame (203) and at the top of the dust discharge port (301); The other end of the main drain pipe (222) is connected to one end of a cleaning water valve (311), the other end of the cleaning water valve (311) is connected with a cleaning water pipe (312), a heat preservation tank (313) is connected in the middle of the cleaning water pipe (312), two filter boxes (314) are installed at the bottom of the collecting pipe (227), three filter cores (317) are installed inside the filter boxes (314), a water spraying box (318) is installed on one side of the filter boxes (314), a plurality of water spraying pipes (319) are connected to one side of the water spraying box (318), a plurality of water spraying heads (320) are connected to the bottom of the water spraying pipes (319), and the water spraying pipes (319) are located above the filter cores (317); The bottom of the filter box (314) is connected to one end of a three-way pipe (321), the other two ends of the three-way pipe (321) are respectively connected to one end of a sewage discharge valve (322) and one end of a suction valve (323), a guiding pipe (324) is connected between the other ends of the two suction valves (323), a suction pump (325) is installed on one side of the guiding pipe (324), and the suction end of the suction pump (325) is connected to the middle of the outside of the guiding pipe (324).

9. The hot-dip galvanizing furnace for hot-dip galvanizing processing of electric power iron accessories according to claim 8, characterized in that, One side of the water inlet main pipe (221) is connected with a water delivery hose (307) through a water delivery valve (308). The top end of the water delivery hose (307) is connected with a water delivery joint (309). A sewage discharge groove (310) is installed at the bottom of the heat insulation cylinder (208) and at the bottom of the dust suction head (206). The bottom of the manifold pipe (227) is connected with an air distribution pipe (315) at the top of the filter box (314). Both ends of the air distribution pipe (315) are connected with the top surfaces of the two filter boxes (314) through two air control valves (316).

10. The hot-dip galvanizing furnace for hot-dip galvanizing processing of electric power iron accessories according to claim 9, characterized in that, The water control valve (225), the drain valve (226), the clean water valve (311), the air control valve (316), the sewage discharge valve (322) and the suction valve (323) are all electric control valves. The inputs of the water control valve (225), the drain valve (226), the water pump (230), the clean water valve (311), the air control valve (316), the sewage discharge valve (322), the suction valve (323) and the suction pump (325) are electrically connected to the output end of the external power supply through the controller.

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