Automatic flame-spraying high-temperature plastic-removing burning cleaning furnace

Abstract

The utility model discloses an automatic flame-spraying high-temperature plastic-removing burning cleaning furnace which is used for carrying out high-temperature plastic-removing on a spraying hook hung on a hanging chain line, the running path of the hanging chain line passes through the burning cleaning furnace, and the burning cleaning furnace comprises a flame-spraying end part and a flame-blocking end part which are arranged on the two opposite sides of the running path of the hanging chain line. The flame spraying end component is provided with flame spraying torches distributed along the running path of the suspension chain line, the flame blocking end component can be opened and closed relative to the flame spraying end component when being operated, the flame blocking end component and the flame spraying end component are closed relative to each other when the burning cleaning furnace is used for burning cleaning, and the flame spraying torches spray flames to the flame blocking end component when the burning cleaning furnace is used for burning cleaning. And the coating sprayed on the surface of the hook is carbonized by the high temperature generated by the flame at the butt joint part between the flame spraying end part and the flame blocking end part. Due to the fact that online treatment is adopted for high-temperature burning cleaning, upper hanging tools, lower hanging tools and transfer are not needed, labor intensity is reduced, and efficiency is improved.

Description

[Technical Field]

[0001] This utility model belongs to the field of chainsaw processing technology, specifically relating to an online high-temperature cleaning device based on a suspended chain spraying hook. [Background Technology]

[0002] The working principle of product spraying is to charge plastic powder using high-voltage electrostatic equipment, and then spray it onto the workpiece surface under the influence of an electric field. Specifically: Plastic powder is fed into the spray gun by compressed air, generating high-voltage static electricity at the nozzle tip, forming an electrostatic field. The powder, carrying an electric charge after passing through this field, is attracted to the workpiece surface by electrostatic force. As the powder accumulates, the charge gradually increases. When a certain thickness is reached, subsequent powder is repelled by the powder already adhering to the workpiece surface, thus stopping adsorption and forming a powder coating of a certain thickness. The main factor affecting spraying effect or adhesion is the impact of powder accumulation on conductivity, which in turn affects powder adsorption. Therefore, it is essential to keep the spray gun clean and remove any powder from it.

[0003] In existing technologies, centralized high-temperature furnace sintering cleaning of spray-coated hooks is currently the most widely used and effective cleaning method. The high-temperature environment causes the resin and additives within the coating to undergo a carbonization reaction, and then water mist is used to pulverize the carbonized coating, thereby achieving effective cleaning of the hook surface. The specific process is as follows: hooks are replaced once per shift (upper and lower hooks, 2 people, 2 hours) → centralized vacuum heat treatment furnace sintering (550℃, 5 hours) → cooling (2 hours) → water rinsing (1 hour) → transfer to the workshop. However, this process typically takes dozens of hours to complete. [Utility Model Content]

[0004] To address the shortcomings of existing technologies, the present invention aims to provide an automatic high-temperature decoction and cleaning furnace with spray flame, which, in conjunction with an online suspended chain conveyor, performs spraying and hook-based cleaning, thus solving the problem of low efficiency associated with the centralized high-temperature furnace cleaning method in existing technologies.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An automatic high-temperature decoating and cleaning furnace is used to perform high-temperature decoating on spray hooks suspended on a conveyor belt. The conveyor belt passes through the furnace, which includes a flame-spraying end component and a flame-blocking end component located on opposite sides of the conveyor belt's path. The flame-spraying end component is equipped with flame torches distributed along the conveyor belt's path. The flame-blocking end component can be opened and closed relative to the flame-spraying end component when operated. During cleaning in the furnace, the flame-blocking end component is closed relative to the flame-spraying end component. During cleaning, the flame torches spray flames onto the flame-blocking end component. The high temperature generated at the joint between the flame-spraying end component and the flame-blocking end component carbonizes the coating on the surface of the spray hook.

[0007] Preferably, a slide rail is provided below the flame deflector component, and a roller is provided at the bottom of the flame deflector component, with the roller cooperating with the slide rail.

[0008] Preferably, a limiting component is provided between the flame deflector component and the slide rail, the limiting component being used to restrict the movement of the flame deflector component relative to the slide rail.

[0009] Preferably, the limiting component includes a limiting seat fixed on the slide rail and a limiting member hinged to the limiting seat, wherein the limiting member is connected to the flame deflector component.

[0010] Preferably, the roller is connected to the roller seat via a roller shaft, and one end of the roller shaft is provided with a limiting part protruding from the outside of the roller seat, and the limiting member cooperates with the limiting part.

[0011] Preferably, the limiting part is a limiting groove, and the limiting member is a limiting hook.

[0012] Preferably, the flame-blocking end component has a handle on the side opposite to the flame-spraying end component.

[0013] Preferably, the flame-deflecting end component is provided with a flame-deflecting part, and the flame-deflecting part is provided with a flame-deflecting plate.

[0014] Preferably, the top of the flame-emitting end component is provided with a suspension chain support frame.

[0015] Preferably, the combustion furnace is covered with a dust cover at the joint between the flame-spraying end component and the flame-blocking end component, and the dust cover is connected to a waste gas treatment device.

[0016] The present invention adopts the above technical solution and has the following beneficial effects:

[0017] To overcome the drawbacks of centralized high-temperature furnace heat treatment combustion, which requires loading and unloading of fixtures and transfer between the spraying and heat treatment workshops, resulting in high labor intensity and low processing efficiency, an online combustion process is adopted. This involves using the existing suspension conveyor belt to directly pass the spraying hooks requiring deploring through the combustion furnace. As the hooks pass through the furnace, flame combustion occurs, and the generated high temperature rapidly and completely burns off the powder adhering to the hooks. Because high-temperature combustion is an online process, eliminating the need for loading and unloading fixtures and transfers, labor intensity is reduced and efficiency is improved.

[0018] Because this online high-temperature burn-off equipment operates intermittently—that is, cleaning is only performed when the powder coating accumulates to a certain thickness, affecting the spraying effect or adhesion—while the overhead conveyor belt continues to operate continuously, a burn-off furnace is designed to prevent it from affecting the normal operation of the conveyor belt. The burn-off furnace includes a flame-spraying end component and a flame-blocking end component located on opposite sides of the conveyor belt's running path. The flame-blocking end component can be opened and closed relative to the flame-spraying end component when operated. During burn-off, the flame-blocking end component is closed relative to the flame-spraying end component; when not burn-off, it is open relative to the flame-spraying end component. In the closed state, the flame-blocking end component can shield the flame emitted by the torch, preventing damage from the flame and concentrating heat in the area between the flame-spraying end component and the flame-blocking end component, thereby facilitating the formation of high temperatures and promoting the carbonization reaction of the resin and additives within the coating.

[0019] To facilitate the opening and closing of the flame deflector relative to the flame jet component during operation, a slide rail is provided below the flame deflector, and rollers are located at the bottom of the flame deflector, with the rollers cooperating with the slide rail. This allows for easy operation by a single worker, enabling the flame deflector to open and close relative to the flame jet component. It also ensures that the positions of the flame deflector and flame jet components perpendicular to the sliding direction are fixed, preventing relative misalignment. Additionally, a handle is provided on the side of the flame deflector facing away from the flame jet component for convenient operation.

[0020] In addition, a limiting component is provided between the flame deflector component and the slide rail. The limiting component is used to restrict the movement of the flame deflector component relative to the slide rail, that is, the flame deflector component can be kept relatively fixed regardless of whether it is in the open or closed state.

[0021] In order to treat the generated exhaust gas and smoke, the furnace is equipped with a dust cover, which is connected to dust removal equipment, such as dust treatment and other harmful gas treatment. After treatment, the gas is discharged into the atmosphere to avoid environmental pollution.

[0022] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. [Attached Image Description]

[0023] The utility model will be further described below with reference to the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of an online high-temperature caustic cleaning device based on a suspended chain spraying hook;

[0025] Figure 2 This is a schematic diagram of an online high-temperature caustic cleaning device based on a suspended chain spraying hook;

[0026] Figure 3 A schematic diagram of the structure when the flame-deflecting end component moves relative to the flame-spraying end component;

[0027] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0028] Figure 5 for Figure 3 Enlarged structural diagram at point B;

[0029] Figure 6 This is a schematic diagram of the structure when the flame-blocking end component is closed relative to the flame-spraying end component;

[0030] Figure 7 for Figure 6 Enlarged structural diagram at point C;

[0031] Reference numerals: 1. Suspension chain; 11. Spraying hook; 2. Burning furnace; 21. Flame-spraying end component; 211. Flame-spraying torch; 212. Natural gas pipeline; 22. Flame-blocking end component; 221. Flame-blocking part; 222. Roller; 2221. Limiting groove; 223. Handle; 23. Slide rail; 24. Limiting component; 241. Limiting seat; 242. Limiting hook; 243. Hook groove; 25. Suspension chain support frame; 26. Dust cover; 3. Cleaning machine; 31. High-pressure nozzle; 32. High-pressure water pump; 33. Filter water tank; 34. Water receiving tank; 35. Water receiving cylinder; 36. Return water tank.

Detailed Implementation Methods

[0032] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0033] Those skilled in the art will understand that, without conflict, the features in the following embodiments and implementations can be combined with each other.

[0034] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "left," and "right" that indicate orientation or positional relationship are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] To overcome the drawbacks of centralized heat treatment combustion methods, which require upper and lower mounting fixtures and transfer between the spraying and heat treatment workshops, resulting in high labor intensity and low processing efficiency, this utility model adopts an online combustion and cleaning process, referring to... Figures 1 to 7 As shown, this utility model provides an online high-temperature causticization device based on a suspended chain spraying hook, comprising:

[0037] Suspension chain 1, on which spray hooks 11 are suspended, and the running path of the suspension chain passes through high-voltage electrostatic spraying equipment, a burner 2 and a cleaning machine 3.

[0038] The cleaning furnace 2 includes a flame-spraying end component 21 and a flame-blocking end component 22 located on opposite sides of the running path of the suspended chain. Here, the flame-spraying end component 21 and the flame-blocking end component 22 are positioned in the left-right direction. The flame-spraying end component is provided with a flame-spraying torch 211 distributed along the running path of the suspended chain. When the flame-blocking end component is operated, it can be opened and closed relative to the flame-spraying end component. When the cleaning furnace is cleaning, the flame-spraying torch sprays flames onto the flame-blocking end component. The high temperature generated by the flame at the joint between the flame-spraying end component and the flame-blocking end component causes the coating on the surface of the spray hook to carbonize.

[0039] Cleaning machine 3, equipped with high-pressure nozzles 31, sprays water mist onto the surface of the spray hook to break down the carbonized coating, thereby cleaning the surface of the spray hook. Figure 2 As shown, the water mist sprayed from the high-pressure nozzle covers the bottom of the spray hook, i.e. the part that is hooked, thereby cleaning the part that needs to be de-plasticized to avoid affecting the spraying effect or adhesion.

[0040] The suspended chain 1 is a common feature in high-voltage electrostatic spraying processes. Spray hooks 11 are suspended on the chain, and parts to be sprayed, such as chainsaw guide plates, are hooked onto these hooks. The chain's path passes through the high-voltage electrostatic spraying equipment, allowing the parts to be sprayed. In this embodiment, relying on the existing suspended chain, the spray hooks requiring deplasticizing are directly passed through a burner and a cleaning machine in sequence. As the hooks pass through the burner, they are burned by a flame, and the resulting high temperature quickly and completely burns off the powder adhering to the hooks. Then, they undergo high-pressure cleaning in the cleaning machine to thoroughly remove the powder. After cleaning, the hooks continue operating online. Because the high-temperature burner and high-pressure cleaning are performed online, there is no need for mounting / unmounting fixtures or transfers, reducing labor intensity and improving efficiency.

[0041] The positions of the burner and cleaning machine relative to the running path of the overhead conveyor are fixed. This online high-temperature burner operates intermittently. During normal high-voltage electrostatic spraying, the burner and cleaning machine are not running. If the powder coating accumulates to a certain thickness, affecting the spraying effect or adhesion, cleaning is required, and then the burner and cleaning machine are activated. Since the overhead conveyor operates continuously, to avoid the burner affecting its normal operation (after spraying, the hook continues to run online until the next process), the flame-deflecting end component can be opened and closed relative to the flame-spraying end component when operated. The flame-deflecting end component is closed relative to the flame-spraying end component during burner operation and open relative to it when not burnering. In the closed state, the flame-deflecting end component can shield the flame from the torch, preventing damage and concentrating heat in the area between the flame-spraying end component and the flame-deflecting end component, thus promoting high temperatures and facilitating the carbonization reaction of the resin and additives within the coating.

[0042] In some embodiments, a slide rail 23 is provided below the flame deflector 22, extending along the sliding direction of the flame deflector 22. A roller 222 is provided at the bottom of the flame deflector 22, cooperating with the slide rail 23. This makes operation easier, allowing a single worker to operate it easily. It also facilitates the opening and closing of the flame deflector 22 relative to the flame jet 22, while ensuring that the positions of the flame deflector 22 and the flame jet 22 are fixed perpendicular to the sliding direction, preventing relative misalignment. Specifically, two slide rails 23 can be arranged side-by-side, with a cylindrical section at the top of each rail. The rollers have grooves that engage with the cylindrical section.

[0043] Furthermore, a limiting component 24 is provided between the flame deflector component 22 and the slide rail 23. The limiting component 24 is used to restrict the movement of the flame deflector component relative to the slide rail. The limiting component includes a limiting seat 241 fixed on the slide rail and a limiting hook 242 hinged to the limiting seat. The roller is connected to the roller seat through a roller shaft. One end of the roller shaft is provided with a limiting groove 2221 protruding from the outside of the roller seat. The limiting hook 242 cooperates with the limiting groove 2221. In the open and closed states, in order to keep the flame deflector component relatively fixed, the limiting hook 242 cooperates with the limiting groove 2221. If it is necessary to move the flame deflector component 22, the limiting hook 242 is pulled upward, and the limiting hook 242 disengages from the limiting groove 2221, allowing the flame deflector component 22 to move. Since the limiting seat 241 is fixed and only one is provided, in the open state, the rollers away from the flame-end component are far from the limiting seat, and in the closed state, the rollers close to the flame-end component are far from the limiting seat. Correspondingly, the free ends of the limiting hook 242 are provided with hook grooves 243 on both sides. In this way, in the open state, the first hook groove cooperates with the limiting groove of the roller close to the flame-end component, and in the closed state, the second hook groove cooperates with the limiting groove of the roller away from the flame-end component.

[0044] Specifically, the flame torch 211 of the flame-spraying end component is connected to a natural gas pipeline 212. The flame torch 211 burns natural gas for heating, which is relatively environmentally friendly, and the combustion temperature meets the heating requirements. The flame-spraying end component is equipped with refractory bricks, which can withstand high temperatures and also provide insulation to prevent the shell temperature of the flame-spraying end component from becoming too high. The upper part of the flame-deflecting end component is provided with a flame-deflecting part 221 that is recessed away from the flame-spraying end component. The flame-deflecting part is equipped with a flame-deflecting plate. The flame-deflecting part is directly opposite the flame-spraying position of the flame torch 211 and is recessed relative to the flame-spraying end component, which facilitates the suspension and passage of the guide plate and avoids interference. The flame-deflecting plate is made of high-temperature resistant steel plate.

[0045] In addition, a handle 223 is provided on the side of the flame-blocking component 22 facing away from the flame-spraying component to facilitate opening and closing operations and to move the flame-blocking component.

[0046] Specifically, the top of the flame-emitting end component is provided with a suspension chain support frame 25. The suspension chain is connected to the suspension chain support frame 25 at the combustion furnace 2 section.

[0047] In addition, the combustion furnace 2 is covered with a dust cover 26 above the joint between the flame-spraying end component and the flame-blocking end component. The top of the dust cover 26 is provided with a connection interface and is connected to waste gas treatment equipment, such as dust treatment and other harmful gas treatment. After the treatment is completed, it is discharged into the atmosphere to avoid pollution to the environment.

[0048] The structure of the cleaning machine can refer to existing technology. Furthermore, to achieve water recycling and water conservation, the cleaning machine 3 is equipped with a cleaning water recovery system. Specifically, the cleaning water recovery system includes a filter tank 33, and the high-pressure nozzle 31 is connected to the filter tank via a water supply pipe. The water supply pipe is connected to a high-pressure water pump 32, which draws filtered cleaning water from the filter tank and sprays water mist onto the surface of the coating hook through the high-pressure nozzle to break down the carbonized coating.

[0049] Furthermore, the cleaning water recycling system also includes a receiving tank 34 and a return tank 36. The receiving tank 34 is located below the spray hooks and is used to collect the cleaning water after cleaning the spray hooks. The return tank 36 is located below the receiving tank and is used to receive the cleaning water falling from the receiving tank and transport the cleaning water to the filtration tank. The receiving tank is connected to a receiving cylinder 35. When the cleaning machine is running, the receiving cylinder 35 moves the receiving tank to the receiving position. When not running, the receiving cylinder 35 drives the receiving tank back to its original position to avoid affecting the normal operation of the suspension chain.

[0050] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the utility model will be included within the scope of the claims.

Claims

1. An automatic flame spraying high-temperature depolymerization and cleaning furnace for high-temperature depolymerization of a spraying hanger suspended on a suspension chain line, wherein a running path of the suspension chain line passes through the cleaning furnace, characterized in that, The cleaning furnace comprises flame spraying end parts and flame blocking end parts arranged on opposite sides of the running path of the hanging chain line, the flame spraying end parts are provided with flame spraying torches distributed along the running path of the hanging chain line, the flame blocking end parts are opened and closed relative to the flame spraying end parts when operated, the flame blocking end parts are closed relative to the flame spraying end parts when the cleaning furnace is cleaned, the flame spraying torches spray flames to the flame blocking end parts when the cleaning furnace is cleaned, and high temperature generated at the joint between the flame spraying end parts and the flame blocking end parts when the flame is sprayed causes the coating on the surface of the spraying hook to be carbonized.

2. The automatic flame jet high temperature depolymerization cleaning furnace according to claim 1, characterized in that, A slide rail is arranged below the flame blocking end parts, and the bottom of the flame blocking end parts is provided with a rolling wheel matched with the slide rail.

3. The automatic flame jet high temperature depolymerization cleaning furnace according to claim 2, characterized in that, A limiting part is arranged between the flame blocking end parts and the slide rail, and the limiting part is used to limit the movement of the flame blocking end parts relative to the slide rail.

4. The automatic flame jet high temperature depolymerization cleaning furnace according to claim 3, characterized in that, The limiting part comprises a limiting seat fixed on the slide rail and a limiting piece hinged to the limiting seat, and the limiting piece is connected with the flame blocking end parts.

5. The automatic flame jet high temperature depolymerization cleaning furnace according to claim 4, characterized in that, The rolling wheel is connected with a rolling wheel seat through a rolling wheel shaft, one end of the rolling wheel shaft is provided with a limiting part protruding outward from the rolling wheel seat, and the limiting piece is matched with the limiting part.

6. The automatic flame jet high temperature depolymerization cleaning furnace according to claim 5, characterized in that, The limiting part is a limiting groove, and the limiting piece is a limiting hook.

7. The automatic flame jet high temperature depolymerization cleaning furnace according to claim 2, characterized in that, The side of the flame blocking end parts opposite to the flame spraying end parts is provided with a handle.

8. The automatic flame jet high temperature depolymerization cleaning furnace according to claim 1, characterized in that, The flame blocking end parts are provided with a flame blocking part, and the flame blocking part is provided with a flame blocking plate.

9. The automatic flame jet high temperature depolymerization cleaning furnace according to claim 1, characterized in that, The top of the flame spraying end parts is provided with a hanging chain line support frame.

10. The automatic flame jet high temperature depolymerization cleaning furnace according to claim 1, characterized in that, A dustproof cover is arranged above the joint between the flame spraying end parts and the flame blocking end parts of the cleaning furnace, and the dustproof cover is connected with a waste gas treatment device.

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