Overhaul slag recycling system and recycling method thereof

Abstract

The invention relates to the technical field of waste harmless treatment, in particular to an overhaul slag recycling system which comprises a resistance furnace. A storage tube; the storage pipe is used for containing overhaul slag to be treated; the resistance furnace is used for heating the overhaul slag in the storage pipe; stepping clamping assemblies are installed at the inlet end and the outlet end of the resistance furnace respectively, and each stepping clamping assembly comprises a first clamping part, a second clamping part and a driving part for driving the first clamping part and the second clamping part to move. The device has the beneficial effects that by designing the stepping clamping assembly, overhaul slag can be continuously heated under the condition that the resistance furnace is not closed, the waste treatment efficiency is greatly improved, the downtime caused by waiting for cooling and reheating of the resistance furnace is shortened, the waste is converted into high-added-value products, and the production cost is reduced. The method not only solves the problem of environmental pollution, but also realizes effective recycling of resources.

Description

Technical Field

[0001] The present invention relates to the field of harmless treatment of waste, and in particular to a recycling system for overhaul slag and a recycling method thereof. Background Art

[0002] In recent years, with the increasing environmental pressure and the growing problem of resource shortage, the harmless treatment and comprehensive utilization of electrolytic aluminum waste slag (usually called overhaul slag) have become the key to solving the environmental challenges and efficient resource utilization in the electrolytic aluminum industry.

[0003] Currently, to effectively recycle and treat overhaul slag materials can not only eliminate environmental pollution but also promote the harmlessness and resource utilization of waste materials. Among them, pyrometallurgical treatment, as a treatment method, uses a high-temperature furnace to treat overhaul slag, and the final product is high-purity recarburizer with high economic value. However, when the equipment fills the overhaul slag, it needs to wait for the downtime caused by the cooling and reheating of the resistance furnace, so the mass production rate is low. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is that when the equipment fills the overhaul slag, it needs to wait for the downtime caused by the cooling and reheating of the resistance furnace, so the mass production rate is low.

[0005] The above technical problem is solved by the following technical solutions: The present invention provides a recycling system for overhaul slag, which includes a resistance furnace; a storage pipe; the storage pipe is used to hold the overhaul slag to be treated; the resistance furnace is used to heat the overhaul slag in the storage pipe; step clamping components are respectively installed at the inlet and outlet ends of the resistance furnace, and each step clamping component includes a first clamping part, a second clamping part and a driving part for driving the first clamping part and the second clamping part to move; the first clamping part can seal and clamp the storage pipe in the first state; the driving part includes a controller and an air valve. When the predetermined heating time is reached, the controller opens the air valve to allow compressed gas to enter through the channel, separates the first clamping part from the storage pipe in the second state, drives the second clamping part to clamp the storage pipe, and makes the second clamping part carry the storage pipe into the interior of the resistance furnace.

[0006] In a preferred embodiment of the overhaul slag recycling system of the present invention: the first clamping portion includes two first clamping blocks symmetrically distributed up and down; each first clamping block includes a telescopic seat, and an arc-shaped clamping block is slidably arranged inside the telescopic seat; a first spring is fixedly connected between the telescopic seat and the arc-shaped clamping block; at least one air hole is formed in the telescopic seat, and when the pressure inside the telescopic seat reaches a predetermined threshold, the pressure acts on the arc-shaped clamping block, causing the arc-shaped clamping block to move axially along the telescopic seat, so as to move away from the storage pipe; and an electric push rod for driving the first clamping block to move, the electric push rod is installed at the inlet and outlet ends of the resistance furnace and is used to control the position change of the first clamping block.

[0007] In a preferred embodiment of the overhaul slag recycling system of the present invention: the second clamping portion includes two second clamping blocks symmetrically distributed up and down; moving plates are arranged at one ends of the two second clamping blocks away from each other; wherein, a pressure hollow cylinder is formed in the middle of the moving plate, and a sliding rod slidably connected with the pressure hollow cylinder is arranged on the second clamping block, the sliding rod can freely slide in the pressure hollow cylinder, and a second spring is connected between the sliding rod and the pressure hollow cylinder.

[0008] In a preferred embodiment of the overhaul slag recycling system of the present invention: a pressure relief hole is formed in the lower half of the pressure hollow cylinder, and when the pressure inside the pressure hollow cylinder reaches a preset threshold, the sliding rod is displaced due to the internal pressure, so as to expose the pressure relief hole to release excessive pressure, the top of the pressure hollow cylinder is connected with the driving portion through a pipeline, and the driving portion can guide the action of the sliding rod and control the clamping or loosening state of the second clamping block.

[0009] In a preferred embodiment of the overhaul slag recycling system of the present invention: a slot is formed at the inlet and outlet ends of the resistance furnace, the slot is used to accommodate the moving plate for horizontal sliding, and a positioning rod is arranged inside the slot, and the positioning rod penetrates through the moving plate.

[0010] In a preferred embodiment of the overhaul slag recycling system of the present invention: an elastic bellows is sleeved outside one end of the positioning rod, and the elastic bellows can expand in the inflated state and push the moving plate to slide along the positioning rod; when the moving plate moves, it is used to push the storage pipe through the second clamping block, so that the storage pipe can be continuously fed into the resistance furnace; a return spring is sleeved at one end of the positioning rod away from the elastic bellows.

[0011] In a preferred embodiment of the overhaul slag recycling system of the present invention: The driving part includes a box body fixed to the outside of the resistance furnace; a solution is filled in the box body, and the solution can absorb the heat generated by the resistance furnace during operation and vaporize to form high-pressure gas; an air outlet is arranged on the box body and communicated with the pressure hollow cylinder through a pipeline for guiding the high-pressure gas from the box body to the pressure hollow cylinder.

[0012] In a preferred embodiment of the overhaul slag recycling system of the present invention: A detection component is arranged inside the inlet and outlet ends of the resistance furnace. The detection component includes a pipe body, one end of the pipe body is communicated with a pressure relief hole, and the other end is communicated with the lower half of the telescopic seat; a plugging pipe is movably arranged inside the pipe body for controlling gas flow; a driving seat is connected to the plugging pipe for controlling the movement of the plugging pipe inside the pipe body; at least one round hole is arranged in the pipe body to allow gas to enter the sealed area from the inside of the pipe body to detect the sealing performance between the second clamping block and the storage pipe.

[0013] In a preferred embodiment of the overhaul slag recycling system of the present invention: A guiding groove is arranged inside the driving seat for accommodating and guiding the sliding of the push rod; a storage cavity communicated with the guiding groove is arranged inside the driving seat; a sealed sliding connection mode is adopted between the push rod and the guiding groove, so that the push rod can smoothly move inside the guiding groove while maintaining airtightness; wherein, the storage pipe is assembled by a plurality of hollow pipes, each hollow pipe has at least one openable and closable cover plate, and the cover plate is hinged on the surface of the hollow pipe; the plurality of hollow pipes are connected to each other through a rotating part, allowing relative rotation between adjacent hollow pipes, so as to facilitate adjusting the position of the hollow pipes for convenient access of overhaul slag; a locking mechanism is arranged on the cover plate to ensure that the cover plate remains closed during handling or heating to prevent accidental opening.

[0014] To solve the above technical problems, the present invention also provides the following technical solution: A recycling method for an overhaul slag recycling system includes an overhaul slag recycling system, and a storage pipe for accommodating the overhaul slag to be processed, which is matched with a resistance furnace for heating the overhaul slag in the storage pipe; using the first clamping part to seal and clamp the storage pipe in the first state; after reaching the predetermined heating time, the controller opens the air valve to make the compressed gas enter the channel, separate the first clamping part from the storage pipe in the second state, and drive the second clamping part to clamp the storage pipe; using the second clamping part to carry the storage pipe to move inside the resistance furnace for heating treatment; realizing the horizontal sliding of the moving plate through the positioning rod and the elastic corrugated pipe, and further pushing the storage pipe to continuously feed into the resistance furnace.

[0015] The beneficial effects of the present invention are as follows: By designing a stepping clamping assembly, the overhaul slag can be continuously heated without shutting down the resistance furnace. This continuous operation mode greatly improves the efficiency of waste treatment and reduces the downtime caused by waiting for the resistance furnace to cool down and reheating. The present invention is designed for treating the waste generated in the electrolytic aluminum industry, especially those wastes containing carbon and other valuable components. By converting these wastes into high-value-added products such as silicon carbide and graphitized carbon products, not only the environmental pollution problem is solved, but also the effective recycling of resources is realized.

[0016] The detection component is adopted to ensure the sealing performance between the storage tube and the stepping clamping assembly during the high-temperature treatment process. It not only prevents the leakage of harmful gases, ensures the safety of the working environment, but also guarantees the stability of the treatment process.

[0017] The storage tube is composed of multiple hollow tubes, and these tube bodies can be connected to each other and rotate relative to each other through rotating parts. This design increases the flexibility of the storage device and facilitates adjusting the position according to actual needs. Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present invention and do not limit the present invention. Among them:

[0019] Figure 1 Shows a three-dimensional view of a system for recycling overhaul slag;

[0020] Figure 2 Shows a partial cross-sectional view of the stepping clamping assembly of a system for recycling overhaul slag;

[0021] Figure 3 Shows a cross-sectional plan view of the stepping clamping assembly of a system for recycling overhaul slag;

[0022] Figure 4 Shows a demonstration diagram of the movement of the first clamping part under pressure of a system for recycling overhaul slag;

[0023] Figure 5 Shows a three-dimensional view of the second clamping part of a system for recycling overhaul slag;

[0024] Figure 6 Shows a demonstration diagram of the movement of the storage tube driven by the second clamping part of a system for recycling overhaul slag;

[0025] Figure 7 Shows a three-dimensional view of the detection component of a system for recycling overhaul slag;

[0026] Figure 8Shows a cross-sectional view of the drive seat of a major overhaul slag recycling system. Detailed implementation manners

[0027] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below in conjunction with the specific implementation manners and the accompanying drawings.

[0028] The terms used in the present invention are those general terms that are currently widely used in the art in consideration of the functions of the present invention. However, these terms may change according to the intentions of those of ordinary skill in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in this case, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but based on the meanings of the terms and the overall description of the present invention.

[0029] Referring to Figures 1 - 2 and Figure 6 , this embodiment provides a major overhaul slag recycling system, including a resistance furnace 1; a storage pipe 2; the storage pipe 2 is used to accommodate the major overhaul slag to be processed; a resistance wire is arranged inside the resistance furnace 1 for heating the major overhaul slag in the storage pipe 2 to convert it into silicon carbide and graphitized carbon products; stepping clamping assemblies 3 are respectively installed at the inlet and outlet ends 115 of the resistance furnace 1, and each stepping clamping assembly 3 includes a first clamping part 31, a second clamping part 32 and a driving part 33 for driving the first clamping part 31 and the second clamping part 32 to move; the first clamping part 31 can hermetically clamp the storage pipe 2 in the first state to ensure the stability of the internal environment of the storage pipe 2 during the heating process; the driving part 33 includes a controller and an air valve 331. When the predetermined heating time is reached, the controller opens the air valve 331 to allow compressed gas to enter through the channel, so that the second clamping part 32 clamps the storage pipe 2 and the second clamping part 32 carries the storage pipe 2 into the interior of the resistance furnace 1; wherein, the stepping clamping assembly 3 can continuously heat the major overhaul slag without closing the resistance furnace 1, improving the recycling and treatment efficiency of the major overhaul slag.

[0030] In this embodiment, the present invention is used to process the major overhaul slag generated in the electrolytic aluminum industry, and these major overhaul slags usually contain a certain amount of carbon and other valuable components such as fluorides.

[0031] The resistance furnace 1 is internally equipped with a resistance wire for heating the storage pipe 2 placed therein. The storage pipe 2 is a container for accommodating the major overhaul slag to be processed, and it plays a bearing role throughout the processing process to ensure that the major overhaul slag can be heated in a controlled environment. By controlling the current intensity of the resistance wire, the temperature inside the resistance furnace 1 can be precisely adjusted, thereby realizing effective heating of the major overhaul slag.

[0032] When the processing starts, the overhaul slag is put into the storage tube 2, and the first clamping part 31 of the stepping clamping assembly 3 seals and clamps the storage tube 2. This process ensures the stability of the internal environment of the storage tube 2 during the heating process, avoiding interference from external factors in the chemical reaction. The driving part 33 includes a controller and an air valve 331. When the predetermined heating time is reached, the controller triggers the air valve 331 to open, allowing compressed gas to enter the channel and pushing the second clamping part 32 to act. This step enables the second clamping part 32 to clamp the storage tube 2. At the same time, it drives the first clamping part 31 to separate from the storage tube 2 and, without shutting down the resistance furnace 1, moves the storage tube 2 into the furnace for continuous heating. This greatly improves the processing efficiency because new overhaul slag can be continuously heated without having to wait for the resistance furnace 1 to cool down completely each time before adding new materials.

[0033] Inside the resistance furnace 1, high temperature causes a series of physical and chemical changes in the overhaul slag. For the overhaul slag with a relatively high carbon content, as the temperature rises, the carbon element may separate from impurities and gradually graphitize to form high-quality graphitized carbon products. At the same time, under specific conditions, high-value-added products such as silicon carbide may also be generated.

[0034] Reference Figures 2 - 4, in an embodiment provided by the present application, the first clamping portion 31 includes two first clamping blocks 311 symmetrically distributed up and down; the first clamping block 311 includes a telescopic seat 3111, and an arc-shaped clamping block 3112 is slidably arranged inside the telescopic seat 3111; a first spring is fixedly connected between the telescopic seat 3111 and the arc-shaped clamping block 3112; at least one air hole 3113 is opened on the telescopic seat 3111, when the pressure inside the telescopic seat 3111 reaches a predetermined threshold, the pressure acts on the arc-shaped clamping block 3112, prompting the arc-shaped clamping block 3112 to move axially along the telescopic seat 3111, so as to move away from the storage tube 2; an electric push rod for driving the first clamping block 311 to move, the electric push rod is installed at the inlet and outlet end 115 of the resistance furnace 1, and is used to control the position change of the first clamping block 311. The second clamping portion 32 includes two second clamping blocks 321 symmetrically distributed up and down; moving plates 322 are arranged at one ends of the two second clamping blocks 321 away from each other; wherein, a pressure hollow cylinder 323 is opened in the middle of the moving plate 322, and a sliding rod 324 slidably connected to the pressure hollow cylinder 323 is arranged on the second clamping block 321, the sliding rod 324 can freely slide in the pressure hollow cylinder 323, and the sliding rod 324 and the pressure hollow cylinder 323 are connected by a second spring, the second spring is used to provide an elastic force for keeping the sliding rod 324 in the initial position, a pressure relief hole 3231 is opened in the lower half of the pressure hollow cylinder 323, when the pressure inside the pressure hollow cylinder 323 reaches a preset threshold, the sliding rod 324 will displace due to the internal pressure, so as to expose the pressure relief hole 3231 to release the excessive pressure, the top of the pressure hollow cylinder 323 is connected to the driving portion 33, and the driving portion 33 can guide the action of the sliding rod 324 and control the clamping or loosening state of the second clamping block 321.

[0035] In this embodiment, the first clamping portion 31 includes two first clamping blocks 311 symmetrically distributed up and down. A telescopic seat 3111 is arranged inside each first clamping block 311, and an arc-shaped clamping block 3112 is slidably arranged inside the telescopic seat 3111, and the two are fixedly connected by a first spring. When the pressure inside the telescopic seat 3111 reaches a predetermined threshold, the pressure acts on the arc-shaped clamping block 3112, pushing the arc-shaped clamping block 3112 to move axially along the telescopic seat 3111, so as to move away from the storage tube 2. To control this process and adjust the position of the first clamping block 311, an electric push rod is also configured and installed at the inlet and outlet end 115 of the resistance furnace 1. That is to say, when the storage tube 2 is heated for the first time, the electric push rod applies pressure to the telescopic seat 3111, and through the first spring, a stable pressure is applied, so that the arc-shaped clamping block 3112 seals and clamps the storage tube 2.

[0036] Secondly, the second clamping part 32 is also composed of two second clamping blocks 321 symmetrically distributed up and down. At one end of each of these two clamping blocks, a moving plate 322 is provided, and a pressure hollow cylinder 323 is opened in the middle of the moving plate 322. A sliding rod 324 slidably connected to the pressure hollow cylinder 323 is provided on the second clamping block 321. The sliding rod 324 can freely slide within the pressure hollow cylinder 323, and the sliding rod 324 and the pressure hollow cylinder 323 are connected by a second spring. The function of the second spring is to provide an elastic force to keep the sliding rod 324 in the initial position. In addition, a pressure relief hole 3231 is opened in the lower half of the pressure hollow cylinder 323. When the pressure inside the pressure hollow cylinder 323 reaches a preset threshold, the sliding rod 324 will displace under the action of the internal pressure to tightly clamp the storage tube 2 and expose the pressure relief hole 3231, and convey the excess gas to the inside of the telescopic seat 3111 through a pipeline.

[0037] The top of the pressure hollow cylinder 323 is connected to the driving part 33, and the driving part 33 can guide the movement of the sliding rod 324, thereby controlling the clamping or loosening state of the second clamping block 321.

[0038] In addition, a sealing layer is provided inside the second clamping block 321 and the inlet / outlet end 115, so that the overall sealing effect can still be maintained when the second clamping block 321 moves.

[0039] Reference Figures 3 - 6 In some embodiments, the second clamping part 32 includes two second clamping blocks 321 symmetrically distributed up and down for clamping the storage tube 2; a moving plate 322 is provided on the outer periphery of each second clamping block 321. 5. A pressure hollow cylinder 323 is opened in the middle of the moving plate 322. A sliding rod 324 slidably connected to the pressure hollow cylinder 323 is provided on the second clamping block 321, so that the sliding rod 324 can perform linear movement along the pressure hollow cylinder 323. The sliding rod 324 and the pressure hollow cylinder 323 are connected by a second spring, and the second spring provides a restoring force to keep the sliding rod 324 in the initial position without external force. The driving part 33 is used to provide pressure to the pressure hollow cylinder 323. A slot is provided at the inlet / outlet end 115 of the resistance furnace 1, and the slot is used to accommodate the horizontal sliding of the moving plate 322. A positioning rod 11 is provided inside the slot, and the positioning rod 11 penetrates through the moving plate 322, so that the moving plate 322 can slide along the positioning rod 11; an elastic corrugated pipe 111 is sleeved on the outer side of one end of the positioning rod 11, and the elastic corrugated pipe 111 can expand and push the moving plate 322 to slide along the positioning rod 11 in the inflated state; a second clamping block 321 is provided on the moving plate 322, and the second clamping block 321 is used to push the storage tube 2 so that the storage tube 2 can be continuously fed into the resistance furnace 1; a return spring 112 is sleeved on the end of the positioning rod 11 far from the elastic corrugated pipe 111, and the return spring 112 is used to push the moving plate 322 back to the initial position after the elastic corrugated pipe 111 deflates.

[0040] In this embodiment, a slot is provided at the inlet and outlet end 115 of the resistance furnace 1. The function of the slot is to accommodate the horizontal sliding of the moving plate 322. A positioning rod 11 is provided inside the slot and penetrates through the moving plate 322, enabling the moving plate 322 to slide along the positioning rod 11. An elastic corrugated pipe 111 is sleeved outside one end of the positioning rod 11. When the elastic corrugated pipe 111 is inflated, it will expand and push the moving plate 322 to slide along the positioning rod 11. Among them, the elastic corrugated pipe 111 is communicated with the air hole 3113 through a pipeline to realize the transportation of gas and the automatic pushing of the storage pipe 2. A return spring 112 is also sleeved at the end of the positioning rod 11 far from the elastic corrugated pipe 111. The purpose is to push the moving plate 322 back to the initial position by the force of the spring after the elastic corrugated pipe 111 deflates, so as to prepare for the next operation cycle.

[0041] In the whole operation process, when it is necessary to send the storage pipe 2 into the resistance furnace 1 for processing, the driving part 33 is started and applies pressure to the pressure hollow cylinder 323, prompting the sliding rod 324 to drive the second clamping block 321 to clamp the storage pipe 2, and at the same time separating the first clamping block 311 from the storage pipe 2. Subsequently, the elastic corrugated pipe 111 is inflated and expanded, pushing the moving plate 322 to slide forward along the positioning rod 11, and then sending the storage pipe 2 into the resistance furnace 1. After the processing is completed, the controller can open the air release valve 331, thereby releasing the gas in the elastic corrugated pipe 111, the pressure hollow cylinder 323 or the telescopic seat 3111. The elastic corrugated pipe 111 deflates and contracts, and the return spring 112 plays a role, pulling the moving plate 322 back to the initial position. At the same time, the second clamping block 321 returns to the initial state under the action of the second spring, releasing the storage pipe 2. In this way, a complete working cycle is completed.

[0042] Reference Figures 2 - 5 , in an embodiment provided by the present application, the driving part 33 includes a box body 3312 fixed on the outside of the resistance furnace 1; the box body 3312 is filled with a solution, and the solution can be vaporized by absorbing the heat generated by the resistance furnace 1 during operation to form high-pressure gas; an air outlet 332 is provided on the box body 3312 and is communicated with the pressure hollow cylinder 323 through a pipeline for guiding the high-pressure gas from the box body 3312 to the pressure hollow cylinder 323; among them, the design of the box body 3312, the solution and the air outlet 332 enables the solution to be efficiently converted into high-pressure gas during the operation of the resistance furnace 1 and stably transmitted to the pressure hollow cylinder 323 through the pipeline, so as to effectively drive the mechanical components connected to the pressure hollow cylinder 323. The solution is selected from water, oil or other media suitable for phase change within the temperature range provided by the resistance furnace 1 to generate high-pressure gas.

[0043] In this embodiment, the box body 3312 is fixed on the outer side of the resistance furnace 1 and filled with a specific solution, such as water, oil or other media that can absorb heat and undergo a phase change to form high-pressure gas when the resistance furnace 1 is working. When the resistance furnace 1 starts working and generates heat, this heat will be absorbed by the solution in the box body 3312, causing the solution to vaporize and become high-pressure gas.

[0044] The box body 3312 includes an air outlet 332, and an air valve 331 is arranged at the air outlet 332 and is connected to the pressure hollow cylinder 323 through a pipeline. It ensures that the high-pressure gas formed by the vaporization of the solution can be smoothly transmitted from the box body 3312 to the pressure hollow cylinder 323. The pressure hollow cylinder 323 plays a dual role here: on the one hand, it receives the high-pressure gas from the box body 3312; on the other hand, it converts the pressure of this high-pressure gas into mechanical motion, and then drives the mechanical components connected to it.

[0045] Reference Figures 3 - 5 and Figures 7 - 8 As an alternative embodiment, a detection component 4 is provided inside the inlet and outlet end 115 of the resistance furnace 1. The detection component 4 includes a pipe body 41, one end of the pipe body 41 is communicated with the pressure relief hole 3231, and the other end is communicated with the lower half of the telescopic seat 3111; a plugging pipe 42 is movably arranged inside the pipe body 41 to control the gas flow; a driving seat 43 is connected to the plugging pipe 42 to control the movement of the plugging pipe 42 inside the pipe body 41. Among them, when the gas flows into the pipe body 41 from the pressure relief hole 3231, under the action of the gas pressure, the second clamping block 321 is hermetically attached to the storage pipe 2, and at the same time, the first clamping block 311 also remains attached to the storage pipe 2, so as to form a sealed area inside the pipe body 41; at least one round hole 44 is provided inside the pipe body 41 to allow the gas to enter the sealed area from the inside of the pipe body 41 to detect the sealing performance between the second clamping block 321 and the storage pipe 2 and prevent the leakage of toxic gas; when the pressure in the sealed area rises to a preset threshold value, the plugging pipe 42 is pushed up through the push rod 432, so that the plugging pipe 42 is aligned with the cavity opened inside the pipe body 41, and the gas is guided into the first clamping block 311, prompting the compressed gas to push the arc-shaped clamping block 3112 to separate from the storage pipe 2 for subsequent operations. A guide groove 431 is provided inside the driving seat 43, and the guide groove 431 is used to accommodate and guide the sliding of the push rod 432; a storage cavity 433 communicated with the guide groove 431 is provided inside the driving seat 43; a sealed sliding connection method is adopted between the push rod 432 and the guide groove 431, so that the push rod 432 can smoothly move inside the guide groove 431 while maintaining airtightness; when the push rod 432 is subjected to an external force, since the external pressure is greater than the pressure inside the storage cavity 433, the push rod 432 is pushed to slide along the guide groove 431.

[0046] In this embodiment, the detection component 4 includes a tube body 41, a plugging tube 42, and a driving seat 43. One end of the tube body 41 is communicated with the pressure relief hole 3231, and the other end is communicated with the lower half of the telescopic seat 3111, forming a channel. When gas flows into the tube body 41 from the pressure relief hole 3231, it will be affected by the special structure inside the tube body 41. During this process, the plugging tube 42 is movably arranged inside the tube body 41, and it plays a role in controlling whether the gas can continue to move along the tube body 41. The driving seat 43 is responsible for controlling the position of the plugging tube 42, that is, determining whether the plugging tube 42 is in a state of blocking or allowing gas to pass through.

[0047] Further, when the gas enters the tube body 41, under the action of the gas pressure, since the second clamping block 321 will be hermetically clamped with the storage tube 2 under the push of the gas at this time, and at the same time the first clamping block 311 also maintains the state of fitting with the storage tube 2. This dual clamping mechanism ensures that a completely sealed area can be formed inside the two. In order to verify the effectiveness of this sealed area and prevent the leakage of toxic gas, at least one round hole 44 is provided inside the tube body 41, and these round holes 44 allow gas to enter the sealed area for testing. If the pressure inside the sealed area rises to the preset threshold, it indicates that the sealing effect is good; otherwise, it may mean that there is a leakage risk.

[0048] Once the pressure in the sealed area reaches the set safety threshold, the push rod 432 will be activated to push the plugging tube 42 upward, so that the plugging tube 42 is aligned with the cavity opened inside the tube body 41. At this time, the originally blocked air flow can be redirected and flow through the new path to the inside of the first clamping block 311. This step uses the power of compressed gas to push the arc-shaped clamping block 3112 to separate from the storage tube 2, providing convenience for subsequent operations.

[0049] It should be noted that when the first clamping block 311 is separated from the storage tube 2, the sealed area jointly formed by the first clamping block 311 and the second clamping block 321 will no longer be effective. In order to continuously ensure the alignment state of the plugging tube 42 with the cavity inside the tube body 41, a viscous medium can be filled in the storage cavity 433, and the size of the communication hole between the guide groove 431 and the storage cavity 433 can be adjusted. In this way, even if the pressure applied to the push rod 432 is insufficient, the recovery speed of the push rod 432 can still be controlled by adjusting the resistance of the viscous medium, so as to ensure that the second clamping block 321 can normally send the storage tube 2 into the resistance furnace 1. This not only improves the reliability of the operation, but also ensures the smooth progress of the whole process.

[0050] In addition, a guiding groove 431 is provided inside the driving seat 43. The guiding groove 431 not only accommodates but also guides the sliding direction of the push rod 432, ensuring that the movement track of the push rod 432 is accurate. At the same time, a storage cavity 433 is also provided inside the driving seat 43, which is connected to the guiding groove 431 and is used to maintain a certain internal pressure. When a certain external force is applied, if the external pressure is greater than the internal pressure of the storage cavity 433, it will cause the push rod 432 to slide along the direction of the guiding groove 431, thereby completing the adjustment of the position of the plugging pipe 42.

[0051] Reference Figure 1 , in some embodiments, the storage pipe 2 is assembled by a plurality of hollow pipes 21. Each hollow pipe 21 has at least one openable and closable cover plate 22, and the cover plate 22 is hinged on the surface of the hollow pipe 21; the plurality of hollow pipes 21 are connected to each other by rotating members, allowing relative rotation between adjacent hollow pipes 21, so as to facilitate the adjustment of the position of the hollow pipes 21 for the access of the overhaul slag; a locking mechanism is provided on the cover plate 22 to ensure that the cover plate 22 remains closed during handling or heating, preventing accidental opening.

[0052] In this embodiment, each hollow pipe 21 serves as a basic storage unit, and its internal space can be used to store the overhaul slag. These hollow pipes 21 do not exist in isolation, but are connected to each other by rotating members to form an integral structure. The rotating members allow relative rotation between adjacent hollow pipes 21, which provides great flexibility for adjusting the position of the hollow pipes 21, thus facilitating the storage of the overhaul slag from different angles and positions. It is suitable for handling irregularly shaped or large-volume waste residues because it can flexibly adjust the angles of the respective hollow pipes 21 according to actual needs to meet different storage requirements.

[0053] Secondly, in order to facilitate the access of the overhaul slag, each hollow pipe 21 is equipped with an openable and closable cover plate 22. These cover plates 22 are hinged on the surface of the hollow pipe 21, enabling them to flip along the hinge axis to achieve the opening and closing functions. When storing the overhaul slag, the operator only needs to open the corresponding cover plate 22 and put the waste residue into the hollow pipe 21; after the access is completed, close the cover plate 22 again. This process is simple and fast, greatly improving the work efficiency.

[0054] A locking mechanism is provided on the cover plate 22. The locking mechanism can automatically lock when the cover plate 22 is closed, ensuring that the cover plate 22 remains closed under any circumstances. This means that neither the vibration encountered during handling nor the thermal expansion and contraction effects that may occur during heating will cause the cover plate 22 to open accidentally.

[0055] A recycling method for a large overhaul slag recycling system. The storage pipe 2 is used to hold the large overhaul slag to be processed and heats the large overhaul slag in the storage pipe 2 by cooperating with the resistance furnace 1. During the operation, the first clamping part 31 is used to seal and clamp the storage pipe 2 in the first state to ensure safe and effective heat treatment preparation. When the predetermined heating time is reached, the controller opens the air valve 331 to allow compressed gas to enter the relevant channels, separates the first clamping part 31 from the storage pipe 2 in the second state, and at the same time the second clamping part 32 is activated and clamps the storage pipe 2. Subsequently, the second clamping part 32 is used to carry the storage pipe 2 and move it into the resistance furnace 1 for heat treatment. The entire moving process is achieved by the elastic corrugated pipe 111 to horizontally slide the moving plate 322, thereby pushing the storage pipe 2 continuously into the resistance furnace 1, ensuring that the storage pipe 2 can smoothly and stably enter the resistance furnace 1 to complete the heat treatment process.

[0056] Finally, it should be pointed out that the methods and devices described in detail above are only examples, and those skilled in the art can modify these examples in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A system for recycling overhaul slag, characterized by: include, Resistance furnace (1); A storage tube (2); the storage tube (2) is used to contain the overhaul slag to be processed; The resistance furnace (1) is used to heat the overhaul slag in the storage tube (2); Step-by-step clamping assemblies (3) are respectively installed at the inlet and outlet ends (115) of the resistance furnace (1), and each step-by-step clamping assembly (3) comprises a first clamping portion (31), a second clamping portion (32), and a driving portion (33) for driving the first clamping portion (31) and the second clamping portion (32) to move; The first clamping portion (31) is capable of sealingly clamping the storage tube (2) in a first state; The driving part (33) comprises a controller and an air valve (331). When a predetermined heating time is reached, the controller opens the air valve (331) to allow compressed gas to enter through the channel, and in the second state, the first clamping part (31) is separated from the storage tube (2), and the second clamping part (32) is driven to clamp the storage tube (2), and the second clamping part (32) carries the storage tube (2) and moves to the inside of the resistance furnace (1).

2. The overhaul slag recycling system according to claim 1, characterized in that: The first clamping portion (31) comprises two first clamping blocks (311) symmetrically distributed up and down; The first clamping block (311) comprises: A telescopic seat (3111), wherein an arc-shaped clamping block (3112) is slidably arranged inside the telescopic seat (3111); A first spring is fixedly connected between the telescopic seat (3111) and the arc-shaped clamping block (3112); At least one air hole (3113) is provided on the telescopic seat (3111), and when the pressure inside the telescopic seat (3111) reaches a predetermined threshold, the pressure acts on the arc-shaped clamping block (3112), causing the arc-shaped clamping block (3112) to move axially along the telescopic seat (3111), thereby moving away from the storage tube (2); and An electric push rod for driving the first clamping block (311) to move, the electric push rod being installed at the inlet and outlet end (115) of the resistance furnace (1) and being used for controlling the position change of the first clamping block (311).

3. The overhaul slag recycling system according to claim 2, characterized in that: The second clamping portion (32) comprises: Two second clamping blocks (321) symmetrically distributed up and down; A movable plate (322) is provided at each end of the two second clamping blocks (321) that are away from each other; A pressure hollow cylinder (323) is provided in the middle of the movable plate (322), and a sliding rod (324) slidably connected to the pressure hollow cylinder (323) is provided on the second clamping block (321); the sliding rod (324) can slide freely in the pressure hollow cylinder (323), and the sliding rod (324) and the pressure hollow cylinder (323) are connected via a second spring.

4. The overhaul slag recycling system according to claim 3, characterized in that: A pressure relief hole (3231) is provided at the lower half of the pressure hollow cylinder (323). When the internal pressure of the pressure hollow cylinder (323) reaches a preset threshold, the slide bar (324) is displaced due to the internal pressure, thereby exposing the pressure relief hole (3231) to release excessive pressure. The top of the pressure hollow cylinder (323) is connected to the driving unit (33) through a pipeline. The driving unit (33) can guide the movement of the slide bar (324) and control the clamping or loosening state of the second clamping block (321).

5. The overhaul slag recycling system according to claim 4, characterized in that: The resistance furnace (1) is provided with a slot at the inlet and outlet end (115), the slot being used to accommodate the movable plate (322) for horizontal sliding, and a positioning rod (11) is provided inside the slot, the positioning rod (11) passing through the movable plate (322).

6. The overhaul slag recycling system according to claim 5, characterized in that: An elastic bellows (111) is sleeved on the outer side of one end of the positioning rod (11), and the elastic bellows (111) can expand and push the movable plate (322) to slide along the positioning rod (11) in an inflated state; When the movable plate (322) moves, the second clamping block (321) is used to push the storage tube (2), so that the storage tube (2) can be continuously fed into the resistance furnace (1); A return spring (112) is sleeved on one end of the positioning rod (11) away from the elastic bellows (111).

7. The overhaul slag recycling system according to claim 6, characterized in that: The driving unit (33) comprises: A box body (3312) is fixed to the outside of the resistance furnace (1); The box (3312) is filled with a solution, wherein the solution can absorb the heat generated by the resistance furnace (1) when it is working and gasify to form high-pressure gas; The gas outlet (332) is arranged on the box body (3312) and is connected to the pressure hollow cylinder (323) through a pipeline, and is used to guide the high-pressure gas from the box body (3312) to the pressure hollow cylinder (323).

8. The overhaul slag recycling system according to claim 7, characterized in that: A detection component (4) is provided inside the inlet and outlet end (115) of the resistance furnace (1), and the detection component (4) comprises: A tube body (41), one end of the tube body (41) is connected to the pressure relief hole (3231), and the other end of the tube body (41) is connected to the lower half of the telescopic seat (3111); A blocking tube (42) movably disposed inside the tube body (41) and used to control gas flow; A driving seat (43) connected to the blocking tube (42) and used for controlling the movement of the blocking tube (42) in the tube body (41); At least one circular hole (44) is provided in the tube body (41) to allow gas to enter the sealing area from the inside of the tube body (41) so as to detect the sealing performance between the second clamping block (321) and the storage tube (2).

9. The overhaul slag recycling system according to claim 8, characterized in that: The driving seat (43) is provided with a guide groove (431) for accommodating and guiding the push rod (432) to slide; the driving seat (43) is provided with a storage cavity (433) in communication with the guide groove (431); a sealed sliding connection is adopted between the push rod (432) and the guide groove (431), so that the push rod (432) can move smoothly in the guide groove (431) while maintaining airtightness; The storage tube (2) is assembled from a plurality of hollow tubes (21), each hollow tube (21) having at least one openable cover plate (22), the cover plate (22) being hinged on the surface of the hollow tube (21); the plurality of hollow tubes (21) are interconnected via a rotating member, allowing adjacent hollow tubes (21) to rotate relative to each other; a locking mechanism is provided on the cover plate (22) to ensure that the cover plate (22) remains in a closed state during transportation or heating.

10. A recycling method for an overhaul slag recycling system, characterized in that: A system for recycling overhaul slag comprising any one of claims 1 to 9, and: A storage tube for containing the overhaul slag to be processed, and the storage tube is matched with a resistance furnace for heating the overhaul slag in the storage tube; Using the first clamping part to seal and clamp the storage tube in a first state; After the predetermined heating time is reached, the controller opens the gas valve to allow the compressed gas to enter the channel, separates the first clamping part from the storage tube in the second state, and drives the second clamping part to clamp the storage tube; The storage tube is carried by the second clamping part and moved to the inside of the resistance furnace for heating treatment; The horizontal sliding of the moving plate is achieved through the positioning rod and the elastic bellows, thereby pushing the storage tube to be continuously fed into the resistance furnace.

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