Annealing furnace

Abstract

The invention relates to the technical field of annealing furnaces, in particular to an annealing furnace which comprises an annealing furnace main body, a treatment mechanism for treating waste gas generated when the annealing furnace main body is heated, and a preheating mechanism for preheating an aluminum coil before annealing processing, the treatment mechanism comprises a treatment box, a gas conveying assembly for conveying waste gas into the treatment box, a filtering piece for filtering solid impurities in the waste gas, a cleaning assembly for cleaning the filtering piece, and an adsorption piece for adsorbing harmful substances in the waste gas; and the driving assembly drives the cleaning assembly to operate actively. According to the waste gas purification device, through mutual cooperation of the driving assembly and the cleaning assembly, when the content of particulate matter in waste gas is large, the cleaning assembly can be driven to operate actively, power is provided for the cleaning assembly, then cleaning of the filter screen is achieved, and the waste gas purification effect is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of annealing furnaces, and in particular to an annealing furnace. Background Art

[0002] In the metal processing industry, annealing is a common heat treatment process, which is to slowly heat the metal to a certain temperature, keep it for a sufficient time, and then cool it at an appropriate speed. The purpose is to change the structure and properties of the metal material. The combustion of the annealing furnace and the thermal decomposition process of the metal material may produce waste gas and particulate matter containing oxides, volatile organic compounds and other harmful components. The waste gas and particulate matter need to be treated before they can be discharged into the atmosphere. Untreated waste gas and particulate matter may contain harmful substances, such as oxides, volatile organic compounds, etc. If they are directly discharged into the atmosphere, they may cause harm to the environment and human health.

[0003] The invention with application number 202311762641.6 discloses an aluminum coil annealing furnace, which relates to the technical field of aluminum coil annealing, including a steel structure wall, a filtering structure and a driving structure. A furnace door is provided on the front of the steel structure wall, and a purge fan, a smoke exhaust fan, a purge pipe, a smoke inlet pipe and a smoke exhaust pipe are provided on the top. A heater and a heat circulation fan are provided inside. A shell fixed to the top of the steel structure wall is fixed on the smoke exhaust pipe, and a control box is fixed on the shell. A cathode rod and a dust collecting plate are fixed in the shell. A scraping block is slidingly provided in the dust collecting plate. A drain pipe is provided at the bottom of the dust collecting plate, and the drain pipe is fixed at the bottom of the shell. The above invention separates large particles in the oil fume through the filtering structure, and then ionizes the oil fume through the cathode rod and the dust collecting plate, allowing harmful particles to adhere to the dust collecting plate, and then the scraping block is driven by the driving structure to slide up and down in the dust collecting plate, and the particles adsorbed on the dust collecting plate are pushed into the drain pipe for discharge, thereby effectively purifying the oil fume.

[0004] In the above patent, the brush block is driven to clean the filter mechanism by rapid gas flow. However, when the particulate matter content in the exhaust gas is large, the brush block cannot clean the filter mechanism in time, which will cause the filter mechanism to be blocked, resulting in obstruction of gas flow and reduction of gas flow, which makes it difficult to drive the brush block to clean, thereby reducing the purification effect of the oil fume.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the invention

[0006] The object of the present invention is to provide an annealing furnace which can effectively solve the above technical problems.

[0007] In order to achieve the purpose of the present invention, the following technical scheme is adopted: An annealing furnace comprises: an annealing furnace body, a treatment mechanism for treating waste gas generated when the annealing furnace body is heated, and a preheating mechanism for preheating an aluminum coil before annealing processing; The treatment mechanism includes: a treatment box, a gas delivery component for delivering the waste gas to the treatment box, a filter for filtering solid impurities in the waste gas, a cleaning component for cleaning the filter, an adsorbent for adsorbing harmful substances in the waste gas, and a driving component for driving the cleaning component to actively operate when the filter is seriously clogged; The filter element comprises: a filter screen and a mounting element for mounting the filter screen; The cleaning assembly comprises: a front cleaning member for cleaning the air inlet side of the filter, a rear cleaning member for cleaning the air outlet side of the filter, and a fan blade for driving the front cleaning member and the rear cleaning member to rotate; The driving assembly includes: a driven bevel gear coaxially connected to the fan blade, an active bevel gear meshing with the driven bevel gear, a circular plate coaxially connected to the active bevel gear, a docking piece arranged on the top of the circular plate, and a power unit driving the docking piece to dock with the circular plate and rotate.

[0008] Furthermore, the power unit includes: a mounting tube fixedly mounted on the annealing furnace body, a sleeve rotatably mounted on the mounting tube, a power source 1 for driving the sleeve to rotate, a movable tube movably mounted in the sleeve, and a power source 2 fixedly mounted in the sleeve and the movable tube.

[0009] Furthermore, the docking member includes: a docking plate fixedly mounted on the movable tube, a mounting hole opened on the docking plate, a plug rod movably mounted in the mounting hole, a plug spring fixedly mounted between the plug rod and the mounting hole, and a docking hole opened on the circular plate.

[0010] Furthermore, the mounting member includes: a mounting frame, an annular groove provided on the mounting frame, an annular plate movably mounted in the annular groove, and a linkage spring fixedly mounted between the annular plate and the annular groove; the annular plate is fixedly sleeved on the filter screen.

[0011] Furthermore, the front cleaning member comprises: a connecting shell, a scraper movably mounted in the connecting shell, a baffle fixedly mounted on the connecting shell, and a connecting spring fixedly mounted between the scraper and the connecting shell; The rear cleaning member comprises: a cleaning cylinder, a linked bevel gear coaxially connected to the cleaning cylinder, and a bevel gear ring meshed with the linked bevel gear.

[0012] Furthermore, the preheating mechanism includes: a preheating furnace, a gas collecting cylinder fixedly installed on the preheating furnace, a piston movably installed in the gas collecting cylinder, a reset component for driving the piston to reset, an exhaust hole opened on the gas collecting cylinder, and a coating component for coating the cross section of the aluminum coil with base oil.

[0013] Furthermore, the reset assembly includes: a movable rod movably mounted on the gas collecting cylinder, and a reset spring sleeved on the movable rod.

[0014] Furthermore, the smearing assembly includes: an adsorption smearing body, a conveying unit for conveying base oil into the adsorption smearing body, a linkage unit for driving the adsorption smearing body to move, and a guiding unit for guiding the adsorption smearing body; The conveying unit comprises: a capsule body and a mounting shell for mounting the adsorption smear body; the capsule body is in communication with the mounting shell.

[0015] Furthermore, the linkage unit includes: a linkage gear rotatably installed in the preheating furnace, a first rack and a second rack meshing with the linkage gear.

[0016] Furthermore, the guide unit comprises: a guide tube plugged and installed on the preheating furnace, and a guide rod movably installed in the guide tube; the guide rod is fixedly connected to the mounting shell.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The annealing furnace of the present invention can drive the cleaning component to actively operate through the cooperation between the driving component and the cleaning component when the content of particulate matter in the exhaust gas is relatively large, provide power for the cleaning component, and then realize the cleaning of the filter screen, thereby ensuring the purification effect of the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0019] Figure 1 It is a three-dimensional schematic diagram of an annealing furnace of the present invention; Figure 2 It is a cross-sectional schematic diagram of a preheating furnace component of an annealing furnace of the present invention; Figure 3 It is a cross-sectional schematic diagram of a gas collecting cylinder component of an annealing furnace of the present invention; Figure 4 The present invention is an annealing furnace Figure 3 Enlarged view of point A in the middle; Figure 5 It is a cross-sectional schematic diagram of a component processing box of an annealing furnace of the present invention; Figure 6 It is a cross-sectional schematic diagram of a component mounting frame of an annealing furnace of the present invention; Figure 7 The present invention is an annealing furnace Figure 6 Enlarged view of point B in the middle; Figure 8 It is a schematic cross-sectional structure diagram of a component mounting frame of an annealing furnace of the present invention; Fig. 9 It is a cross-sectional schematic diagram of a component connection shell of an annealing furnace of the present invention; Fig.10 The present invention is an annealing furnace Fig. 9 Enlarged view of point C in the middle; Fig.11 It is a three-dimensional schematic diagram of an umbrella gear ring component of an annealing furnace of the present invention; Fig.12 The present invention is an annealing furnace Fig.11 Enlarged view of point D in the middle; Fig.13 It is a cross-sectional schematic diagram of a component installation barrel of an annealing furnace of the present invention; Fig.14 The present invention is a schematic cross-sectional view of a component sleeve of an annealing furnace.

[0020] In the figure: 1. Annealing furnace body; 2. Processing mechanism; 21. Processing box; 22. Gas transmission component; 221. Inlet pipe; 222. Pump body; 23. Filter element; 231. Filter screen; 232. Mounting element; 2321. Mounting frame; 2322. Ring plate; 2323. Linking spring; 24. Cleaning component; 241. Front cleaning element; 2411. Connecting shell; 2412. Scraper; 2413. Baffle; 2414. Connecting spring; 242. Rear cleaning element; 2421. Cleaning cylinder; 2422. Linking bevel gear; 2423. Bevel gear ring; 243. Fan blade; 25. Adsorption element; 26. Driving component; 261. Active bevel gear; 262. Driven bevel gear; 263. Round plate; 264. Docking element; 2641. Docking plate; 2642. Plug-in rod; 2643. Plug-in spring; 265. Power unit; 2651. Mounting tube; 2652. Sleeve; 2653. Power source one; 2654. Movable tube; 2655. Power source two; 3. Preheating mechanism; 31. Preheating furnace; 32. Gas collecting cylinder; 33. Piston; 34. Reset assembly; 341. Movable rod; 342. Reset spring; 35. Applying assembly; 351. Adsorption applying body; 352. Conveying unit; 3521. Capsule; 3522. Mounting shell; 353. Linking unit; 3531. Linking gear; 3532. First rack; 3533. Second rack; 354. Guide unit; 3541. Guide tube; 3542. Guide rod; 36. Exhaust hole; 37. Exhaust pipe; 4. Collection box. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments.

[0022] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] like Figures 1 to 14 As shown, an annealing furnace of the present invention comprises: an annealing furnace body 1, a treatment mechanism 2 for treating waste gas generated when the annealing furnace body 1 is heated, and a preheating mechanism 3 for preheating an aluminum coil before annealing processing.

[0024] The processing mechanism 2 includes: a processing box 21, a gas transmission component 22 that transports the exhaust gas to the processing box 21, a filter 23 for filtering solid impurities in the exhaust gas, a cleaning component 24 for cleaning the filter 23, an adsorbent 25 for adsorbing harmful substances in the exhaust gas, and a driving component 26 that drives the cleaning component 24 to actively operate when the filter 23 is seriously clogged; a collecting box 4 for collecting impurities is installed at the bottom of the processing box 21, and the collecting box 4 and the processing box 21 are detachable, so that the processing box 21 and the collecting box 4 can be disassembled, so as to facilitate the processing of the impurities in the collecting box 4, and a collecting opening is opened on the processing box 21, and the collecting opening is connected to the collecting box 4.

[0025] The gas delivery assembly 22 includes: an air inlet pipe 221 connecting the processing box 21 and the annealing furnace body 1 , and a pump body 222 installed on the air inlet pipe 221 .

[0026] It is supplemented here that the pump body 222 is preferably a vortex air pump.

[0027] Starting the pump body 222 can transport the exhaust gas generated when the annealing furnace main body 1 is heated to the treatment box 21 through the air inlet pipe 221. The solid impurities in the exhaust gas can be filtered through the filter element 23, thereby achieving preliminary purification of the exhaust gas. The harmful substances in the exhaust gas can be adsorbed by the adsorption element 25, thereby achieving secondary purification of the exhaust gas, and then effectively removing the harmful substances in the exhaust gas, thereby improving the purification effect of the exhaust gas and avoiding the problem of insufficient purification leading to environmental pollution.

[0028] It is supplemented here that the adsorbent 25 is preferably an activated carbon filter.

[0029] The filter element 23 includes: a filter screen 231, the filter screen 231 is located in the annealing furnace body 1, and a mounting member 232 for mounting the filter screen 231; the mounting member 232 includes: a mounting frame 2321 fixedly mounted in the processing box 21, a discharge opening is provided on the mounting frame 2321, the discharge opening is connected to the collection opening, an annular groove is provided on the mounting frame 2321, an annular plate 2322 movably mounted in the annular groove, and a linkage spring 2323 fixedly mounted between the annular plate 2322 and the annular groove; the annular plate 2322 is fixedly sleeved on the filter screen 231; the solid impurities in the exhaust gas can be filtered by the filter element 23, thereby achieving preliminary purification of the exhaust gas.

[0030] The cleaning assembly 24 includes: a front cleaning member 241 for cleaning the air inlet side of the filter 231, a rear cleaning member 242 for cleaning the air outlet side of the filter 231, and a fan blade 243 for driving the front cleaning member 241 and the rear cleaning member 242 to rotate; a rotating shaft is rotatably installed in the processing box 21, and the front cleaning member 241, the rear cleaning member 242, and the fan blade 243 are all fixedly connected to the rotating shaft; a through hole matching the rotating shaft is opened on the filter 231.

[0031] When the pump body 222 is started, the waste gas generated when the annealing furnace body 1 is heated can be transported to the processing box 21 through the air inlet pipe 221. The rapid flow of gas can drive the fan blade 243 to rotate, the fan blade 243 drives the shaft to rotate, and the shaft drives the front cleaning member 241 and the rear cleaning member 242 to rotate. The front cleaning member 241 includes: a connecting shell 2411 fixedly installed on the shaft, a scraper 2412 movably installed in the connecting shell 2411, and a scraper 2412 fixedly installed in the connecting shell The baffle 2413 on 2411 and the connecting spring 2414 fixedly installed between the scraper 2412 and the connecting shell 2411; the rear cleaning member 242 includes: a linkage shaft rotatably installed on the rotating shaft, a cleaning cylinder 2421 fixedly sleeved on the linkage shaft, a linkage bevel gear 2422 coaxially connected to the cleaning cylinder 2421, and an umbrella-shaped gear ring 2423 meshing with the linkage bevel gear 2422; the umbrella-shaped gear ring 2423 is fixedly installed in the processing box 21.

[0032] When the rear cleaning member 242 rotates, the rotating shaft drives the cleaning cylinder 2421 and the linked bevel gear 2422 to rotate along the circumferential direction of the rotating shaft. Since the linked bevel gear 2422 and the bevel gear ring 2423 are meshed with each other, the linked bevel gear 2422 rotates along the circumferential direction of the rotating shaft and at the same time rotates on its own, thereby driving the cleaning cylinder 2421 to rotate on its own. Since the surface of the cleaning cylinder 2421 is designed with bristles, the bristles will extend into the filter holes of the filter net 231 and push out the impurities in the filter holes. The pushed out impurities are on the outer air intake side of the filter net 231.

[0033] By rotating the cleaning cylinder 2421 along the circumference of the rotating shaft and rotating on its own, impurities in the filter holes can be pushed out, thereby achieving preliminary cleaning of the filter screen 231 and improving the filtering effect of the filter screen 231.

[0034] Since the central axis of the cleaning cylinder 2421 is parallel to the central axis of the connecting shaft and does not overlap, when the cleaning cylinder 2421 rotates, the filter 231 can be intermittently squeezed to move the filter 231. During the movement of the filter 231, the annular plate 2322 is driven to slide in the annular groove, thereby causing the filter 231 to vibrate. Through the vibration of the filter 231, impurities attached to the air inlet side of the filter 231 and impurities pushed out of the filter hole by the bristles can be shaken off, thereby achieving secondary cleaning of the filter 231, improving the cleaning effect, and further improving the filtering effect of the filter 231.

[0035] In the present application, the cleaning cylinder 2421 pushes out the impurities in the filter holes of the filter 231 while driving the filter 231 to vibrate, thereby achieving a double cleaning effect on the filter 231 and improving the cleaning effect.

[0036] At the same time, when the front cleaning member 241 rotates, the rotating shaft drives the connecting shell 2411 to rotate, and the connecting shell 2411 drives the scraper 2412 to rotate. The scraper 2412 can scrape away impurities attached to the air inlet side of the filter 231, impurities pushed out of the filter holes by the bristles, and impurities that are shaken off. Since the scraper 2412 is arranged in an arc shape, the impurities are subjected to the centrifugal force as the scraper 2412 rotates, and are then guided to the discharge opening, enter the collection opening through the discharge opening, and then enter the collection box 4 for collection, thereby realizing three cleanings of the filter 231, greatly improving the cleaning effect, and further improving the filtering effect of the filter 231.

[0037] By setting the connecting spring 2414, the scraper 2412 can always fit the filter screen 231, avoiding the problem of separation of the scraper 2412 and the filter screen 231 due to vibration of the filter screen 231, and improving the cleaning effect of the scraper 2412 on the filter screen 231.

[0038] By setting the baffle 2413, when the impurities are subjected to the centrifugal force as the scraper 2412 rotates, the impurities are shielded, which is beneficial to the collection of the impurities and improves the cleaning efficiency of the impurities.

[0039] By setting the front cleaning member 241 and the rear cleaning member 242, the filter 231 can be cleaned in multiple ways, thereby improving the cleaning effect, thereby improving the filtering effect of the filter 231, and preventing impurities from clogging the filter 231 and affecting the ventilation effect.

[0040] When the content of particulate matter in the exhaust gas is large, the cleaning component 24 cannot clean the filter 231 in time, which will cause the filter 231 to be blocked, resulting in obstruction of gas circulation and reduction of gas circulation, which will make it difficult to drive the fan blades 243 to rotate, making it difficult for the cleaning component 24 to clean the filter 231, thereby reducing the purification effect of the exhaust gas; the driving component 26 can drive the cleaning component 24 to actively operate, provide power for the cleaning component 24, and thus realize the cleaning of the filter 231.

[0041] The driving assembly 26 includes: a driven bevel gear 262 coaxially connected to the fan blade 243, an active bevel gear 261 meshing with the driven bevel gear 262, a circular plate 263 coaxially connected to the active bevel gear 261, a docking piece 264 arranged on one side of the circular plate 263, and a power unit 265 that drives the docking piece 264 to dock with the circular plate 263 and rotate.

[0042] The power unit 265 includes: a mounting tube 2651 fixedly mounted on the annealing furnace body 1, a sleeve 2652 rotatably mounted on the mounting tube 2651, a power source 1 2653 for driving the sleeve 2652 to rotate, a movable tube 2654 movably mounted in the sleeve 2652, and a power source 2 2655 fixedly mounted in the sleeve 2652 and the movable tube 2654; the sleeve 2652 and the movable tube 2654 are both arranged in a rectangular parallelepiped shape; the docking member 264 includes: a docking plate 2641 fixedly mounted on the movable tube 2654, a mounting hole opened on the docking plate 2641, a plug rod 2642 movably mounted in the mounting hole, a plug spring 2643 fixedly mounted between the plug rod 2642 and the mounting hole, and a docking hole opened on the circular plate 263.

[0043] The driving component 26 also includes: an air volume tester for detecting the ventilation volume of the filter 231, and a controller electrically connected to the air volume tester, and the controller is electrically connected to power source 1 2653 and power source 2 2655.

[0044] When the content of particulate matter in the exhaust gas is relatively high, the cleaning component 24 cannot clean the filter 231 in time, causing the filter 231 to be blocked, and the air volume passing through the filter 231 is reduced. At this time, the air volume passing through alone cannot drive the cleaning component 24 to operate. At this time, the driving component 26 is started to drive the cleaning component 24 to clean the filter 231; that is: the air volume threshold is set by the air volume tester, and the air volume can drive the fan blades 243 to rotate; when the ventilation volume of the filter 231 is higher than the air volume threshold, the driving component 26 is not started; when the ventilation volume of the filter 231 is lower than the air volume threshold, the driving component 26 is started.

[0045] When the driving assembly 26 is started, that is: the power source 1 2653 is started by the controller to drive the sleeve 2652 to rotate, the sleeve 2652 drives the movable tube 2654 to rotate, and the movable tube 2654 drives the docking piece 264 to rotate. At the same time, the power source 2 2655 is started by the controller to drive the movable tube 2654 to move, the movable tube 2654 drives the docking plate 2641 to move, and the docking plate 2641 drives the multiple plug-in rods 2642 to approach the circular plate 263, and make the circular plate 263 and the docking plate 2641 fit each other.

[0046] When the plug-in rod 2642 is aligned with the plug-in hole on the circular plate 263, the plug-in rod 2642 is directly inserted into the inner cavity of the plug-in hole, which can drive the circular plate 263 to rotate, and the circular plate 263 drives the active bevel gear 261 to rotate, and the active bevel gear 261 drives the driven bevel gear 262 to rotate, and the driven bevel gear 262 drives the rotating shaft to rotate, thereby driving the cleaning component 24 to operate, and then realizing the cleaning of the filter 231.

[0047] When the plug-in rod 2642 is not aligned with the plug-in hole, the plug-in rod 2642 is moved toward the installation hole by the abutment force of the circular plate 263, and drives the plug-in spring 2643 to be compressed. At this time, the docking plate 2641 drives the plug-in rod 2642 to rotate. When the plug-in rod 2642 rotates to be aligned with the plug-in hole, the elastic force of the plug-in spring 2643 can drive the plug-in rod 2642 to be inserted into the inner cavity of the plug-in hole, thereby driving the circular plate 263 to rotate through the plug-in rod 2642, and then driving the cleaning component 24 to operate, thereby cleaning the filter screen 231.

[0048] When the ventilation volume of the cleaned filter 231 is higher than the air volume threshold again, the controller controls the driving component 26 to recover. At this time, the rapid circulation of gas can drive the fan blades 243 to rotate, thereby driving the cleaning component 24 to clean the filter 231.

[0049] In the present application, the driving component 26 and the cleaning component 24 cooperate with each other, which can drive the cleaning component 24 to actively run and provide power for the cleaning component 24, thereby realizing the cleaning of the filter 231, avoiding the problem that when the content of particulate matter in the exhaust gas is large, the cleaning component 24 cannot clean the filter 231 in time, which will cause the filter 231 to be blocked, resulting in obstruction of gas circulation and reduction of gas circulation, and then it is difficult to drive the fan blades 243 to rotate, resulting in difficulty for the cleaning component 24 to clean the filter 231, thereby reducing the purification effect of the exhaust gas.

[0050] It is to be added here that the power source 1 2653 is preferably: a motor; the power source 2 2655 is preferably: a cylinder.

[0051] As an optional solution: the drive component 26 is not set in the present application, and the fan blade 243 is replaced by a negative pressure fan, which is fixedly installed in the processing box 21, and the rotating shaft of the negative pressure fan is fixedly connected to the rotating shaft in the cleaning component 24; by starting the negative pressure fan, the cleaning component 24 can be driven to rotate. On the one hand, the rotation of the cleaning component 24 will not be affected by the gas flow rate, and a stable cleaning effect on the filter 231 is maintained, avoiding the problem that when the content of particulate matter in the exhaust gas is large, the cleaning component 24 cannot clean the filter 231 in time, which will cause the filter 231 to be blocked. On the other hand, it can accelerate the gas flow, improve the gas transportation efficiency, and thus improve the gas filtration efficiency.

[0052] As a further extension of the present application, when the aluminum coil is annealed, the annealing furnace main body 1 needs to slowly heat the aluminum coil to a certain temperature, maintain it for a sufficient time, and then cool it at an appropriate speed. However, the annealing time of the aluminum coil is relatively long during this process, resulting in low production efficiency. The present application can preheat the aluminum coil before it enters the annealing furnace main body 1 by setting a preheating mechanism 3, so that the aluminum coil has a certain temperature base when it enters the annealing furnace main body 1, thereby shortening the processing time of the heating area in the annealing furnace main body 1, and further improving production efficiency while ensuring annealing quality.

[0053] The preheating mechanism 3 includes: a preheating furnace 31, a gas collecting cylinder 32 fixedly installed on the preheating furnace 31, a piston 33 movably installed in the gas collecting cylinder 32, a reset component 34 for driving the piston 33 to reset, an exhaust hole 36 opened on the gas collecting cylinder 32, a plurality of exhaust holes 36 are provided and evenly distributed in a ring shape so that the gas in the gas collecting cylinder 32 can be quickly discharged, and a coating component 35 for coating the end surface of the aluminum coil with base oil; the gas collecting cylinder 32 is connected to the processing box 21 through an exhaust pipe 37; the reset component 34 includes: a movable rod 341 movably installed on the gas collecting cylinder 32, the movable rod 341 is fixedly connected to the piston 33, and a reset spring 342 is sleeved on the movable rod 341; one end of the reset spring 342 is fixedly connected to the piston 33, and the other end of the reset spring 342 is fixedly connected to the gas collecting cylinder 32.

[0054] After the aluminum coil is placed in the preheating furnace 31, the filtered gas is transported to the gas collecting cylinder 32 through the gas outlet pipe 37. As the gas is continuously transported to the gas collecting cylinder 32, the air pressure in the gas collecting cylinder 32 increases, which can drive the piston 33 to slide downward in the gas collecting cylinder 32. When the piston 33 moves to the bottom of the exhaust hole 36, the gas in the gas collecting cylinder 32 is quickly discharged through the plurality of exhaust holes 36 and enters the preheating furnace 31. Since the filtered gas has a very high temperature, the aluminum coil can be preheated. On the one hand, the aluminum coil has a certain temperature base when entering the annealing furnace body 1, thereby shortening the processing time of the heating area in the annealing furnace body 1, thereby improving the production efficiency under the premise of ensuring the annealing quality; on the other hand, the heat in the gas is utilized to avoid heat loss and improve energy utilization efficiency.

[0055] When the piston 33 slides downward in the gas collecting cylinder 32, it can drive the movable rod 341 to move and drive the return spring 342 to compress. When the piston 33 moves to below the exhaust hole 36, the gas in the gas collecting cylinder 32 is quickly discharged through several exhaust holes 36. At this time, the air pressure in the gas collecting cylinder 32 is reduced, and the elastic force of the return spring 342 can drive the piston 33 to reset upward, and the process is repeated.

[0056] As an optional solution, the preheating furnace 31 may be equipped with resistance wire heating or gas heating, which can provide heat to the preheating furnace 31 when the heat in the gas is insufficient, thereby better preheating the aluminum coil.

[0057] The smearing assembly 35 includes: an adsorption smearing body 351, a conveying unit 352 for conveying base oil to the adsorption smearing body 351, a linkage unit 353 for driving the adsorption smearing body 351 to move, and a guide unit 354 for guiding the adsorption smearing body 351; the conveying unit 352 includes: a capsule 3521, and a mounting shell 3522 for mounting the adsorption smearing body 351; the capsule 3521 is connected to the mounting shell 3522, and a first one-way valve is installed between the capsule 3521 and the mounting shell 3522. The capsule 3521 can be connected to a base oil supply source so that base oil is provided to the capsule 3521, and a second one-way valve is installed between the capsule 3521 and the base oil supply source; the linkage unit 353 includes: a linkage gear 3531 rotatably installed in the preheating furnace 31 , a first rack 3532 fixedly installed on one end of the movable rod 341, and a second rack 3533 fixedly installed on the mounting shell 3522; the first rack 3532 and the second rack 3533 are both meshed with the linkage gear 3531; the guide unit 354 includes: a guide tube 3541 plugged and installed on the preheating furnace 31, and a guide rod 3542 movably installed in the guide tube 3541; the guide rod 3542 is fixedly connected to the mounting shell 3522; since the guide rod 3542 and the guide tube 3541 are both designed in a rectangular shape, they can play a role of limiting and guiding the mounting shell 3522, and then play a role of limiting and guiding the adsorption smearing body 351, so that the adsorption smearing body 351 keeps moving in a straight line without deflection.

[0058] When the piston 33 moves downward, the capsule 3521 can be squeezed, and the first one-way valve is opened and the second one-way valve is closed, so that the base oil in the capsule 3521 flows into the adsorption coating body 351 .

[0059] At the same time, the first rack 3532 is driven downward by the movable rod 341, the first rack 3532 drives the interlocking gear 3531 to rotate, and the interlocking gear 3531 drives the second rack 3533 to move, so that the two mounting shells 3522 are close to each other, and the two mounting shells 3522 drive the adjacent adsorption and smearing bodies 351 to be close to each other, so that the two adsorption and smearing bodies 351 are respectively abutted against the two end surfaces of the aluminum coil. Since the adsorption and smearing bodies 351 are squeezed, the base oil in the adsorption and smearing bodies 351 can be squeezed out and then smeared on the end surface of the aluminum coil. The base oil can form a protective film on the end surface of the aluminum coil, which can effectively isolate gas and moisture, reduce the oxidation reaction on the surface of the aluminum coil during annealing, and improve the production quality of the aluminum coil.

[0060] The base oil is applied to the end surface of the aluminum coil by the adsorption coating body 351. Compared with the prior art of spraying the base oil on the end surface of the aluminum coil, the coating method allows the base oil to adhere to the end surface of the aluminum coil more evenly, and does not generate splashes of the base oil to cause waste, thereby improving the protection effect of the aluminum coil.

[0061] When the piston 33 is reset upward, since the capsule 3521 itself has a certain elasticity, it can assist in resetting the piston 33. When the capsule 3521 is restored, the first one-way valve is closed and the second one-way valve is opened. At this time, the base oil in the base oil supply source can be absorbed into the capsule 3521, thereby preparing for subsequent coating; when the capsule 3521 is restored, the two adsorption coating bodies 351 are reset.

[0062] As the piston 33 is acted upon by the air pressure, it reciprocates up and down, thereby causing the two mounting shells 3522 to reciprocate toward and away from each other. The reciprocating movement of the two mounting shells 3522 toward and away from each other can stir the high-temperature gas in the preheating furnace 31, thereby making the high-temperature gas evenly distributed in the preheating furnace 31, thereby making the aluminum coil evenly heated, thereby improving the preheating effect of the aluminum coil.

[0063] It is to be added here that the adsorption smear body 351 is preferably: a sponge.

[0064] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0065] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. An annealing furnace, characterized in that: include: An annealing furnace body, a treatment mechanism for treating waste gas generated when the annealing furnace body is heated, and a preheating mechanism for preheating the aluminum coil before annealing processing; The treatment mechanism includes: a treatment box, a gas delivery component for delivering the waste gas to the treatment box, a filter for filtering solid impurities in the waste gas, a cleaning component for cleaning the filter, an adsorbent for adsorbing harmful substances in the waste gas, and a driving component for driving the cleaning component to actively operate when the filter is seriously clogged; The filter element comprises: a filter screen and a mounting element for mounting the filter screen; The cleaning assembly comprises: a front cleaning member for cleaning the air inlet side of the filter, a rear cleaning member for cleaning the air outlet side of the filter, and a fan blade for driving the front cleaning member and the rear cleaning member to rotate; The driving assembly includes: a driven bevel gear coaxially connected to the fan blade, an active bevel gear meshing with the driven bevel gear, a circular plate coaxially connected to the active bevel gear, a docking piece arranged on the top of the circular plate, and a power unit driving the docking piece to dock with the circular plate and rotate.

2. An annealing furnace as claimed in claim 1, characterized in that: The power unit includes: a mounting tube fixedly mounted on the annealing furnace body, a sleeve rotatably mounted on the mounting tube, a power source 1 for driving the sleeve to rotate, a movable tube movably mounted in the sleeve, and a power source 2 fixedly mounted in the sleeve and the movable tube.

3. An annealing furnace as claimed in claim 2, characterized in that: The docking member includes: a docking plate fixedly mounted on the movable tube, a mounting hole opened on the docking plate, a plug rod movably mounted in the mounting hole, a plug spring fixedly mounted between the plug rod and the mounting hole, and a docking hole opened on the circular plate.

4. An annealing furnace as claimed in claim 1, characterized in that: The mounting member comprises: a mounting frame, an annular groove provided on the mounting frame, an annular plate movably mounted in the annular groove, and a linkage spring fixedly mounted between the annular plate and the annular groove; the annular plate is fixedly sleeved on the filter screen.

5. An annealing furnace as claimed in claim 1, characterized in that: The front cleaning member comprises: a connecting shell, a scraper movably mounted in the connecting shell, a baffle fixedly mounted on the connecting shell, and a connecting spring fixedly mounted between the scraper and the connecting shell; The rear cleaning member comprises: a cleaning cylinder, a linked bevel gear coaxially connected to the cleaning cylinder, and a bevel gear ring meshed with the linked bevel gear.

6. An annealing furnace as claimed in claim 1, characterized in that: The preheating mechanism includes: a preheating furnace, a gas collecting cylinder fixedly installed on the preheating furnace, a piston movably installed in the gas collecting cylinder, a reset component for driving the piston to reset, an exhaust hole opened on the gas collecting cylinder, and a coating component for coating the cross section of the aluminum coil with base oil.

7. An annealing furnace as claimed in claim 6, characterized in that: The reset assembly comprises: a movable rod movably mounted on the gas collecting cylinder, and a reset spring sleeved on the movable rod.

8. An annealing furnace as claimed in claim 6, characterized in that: The smearing assembly includes: an adsorption smearing body, a conveying unit for conveying base oil into the adsorption smearing body, a linkage unit for driving the adsorption smearing body to move, and a guiding unit for guiding the adsorption smearing body; The conveying unit comprises: a capsule body and a mounting shell for mounting the adsorption smear body; the capsule body is in communication with the mounting shell.

9. An annealing furnace as claimed in claim 8, characterized in that: The linkage unit comprises: a linkage gear rotatably installed in the preheating furnace, a first rack meshing with the linkage gear, and a second rack.

10. An annealing furnace according to claim 8, characterized in that: The guide unit comprises: a guide tube plugged and installed on the preheating furnace, and a guide rod movably installed in the guide tube; the guide rod is fixedly connected to the installation shell.

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