A system for recycling overhaul slag and a recycling method thereof

Abstract

The present invention relates to the technical field of harmless disposal of waste, in particular to a system for recycling overhaul slag, comprising a resistance furnace; a storage tube; the storage tube is used to accommodate the overhaul slag to be processed; the resistance furnace is used to heat the overhaul slag in the storage tube; step clamping assemblies are respectively installed at the inlet and outlet ends of the resistance furnace, each step clamping assembly 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 beneficial effects of the present invention are that by designing the step clamping assembly, the overhaul slag can be continuously heated without shutting down the resistance furnace, which greatly improves the efficiency of waste treatment and reduces the downtime caused by waiting for the resistance furnace to cool and reheat. 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 achieved.

Description

Technical Field

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

[0002] In recent years, with the increasing environmental pressure and increasingly serious resource shortage problems, the harmless treatment and comprehensive utilization of electrolytic aluminum waste slag (commonly known as overhaul slag) have become the key to solving the environmental challenges and efficient resource utilization of the electrolytic aluminum industry.

[0003] At present, the effective recycling and treatment of overhaul slag materials can not only eliminate environmental pollution, but also promote the harmless and resource-based process of waste materials. Among them, pyrometallurgical treatment, as a treatment method, uses a high-temperature furnace to treat overhaul slag. The final product is a high-purity carburizer with high economic value. However, since the equipment needs to wait for the downtime caused by the cooling and reheating of the resistance furnace when performing filler treatment on the overhaul slag, 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 performs filler processing on the overhaul slag, it needs to wait for the resistance furnace to cool down and reheat, which causes downtime, so the mass production rate is low.

[0005] The above technical problems are solved by the following technical solutions: The present invention proposes a major overhaul slag recycling system, which includes a resistance furnace; a storage tube; the storage tube is used to accommodate the major overhaul slag to be processed; the resistance furnace is used to heat the major overhaul slag in the storage tube; step clamping assemblies are respectively installed at the inlet and outlet ends of the resistance furnace, each step clamping assembly 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 tube 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, and in the second state separates the first clamping part from the storage tube, and drives the second clamping part to clamp the storage tube, and causes the second clamping part to carry the storage tube to move to the inside of the resistance furnace.

[0006] In a preferred embodiment of the overhaul slag recycling system described in the present invention: the first clamping part includes two first clamping blocks symmetrically distributed up and down; the first clamping block includes a telescopic seat, and an arc-shaped clamping block is slidingly 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 provided on the telescopic seat, and when the pressure inside the telescopic seat reaches a predetermined threshold, the pressure acts on the arc-shaped clamping block, prompting the arc-shaped clamping block to move axially along the telescopic seat, thereby away from the storage tube; and an electric push rod that drives the first clamping block to move, and 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 described in the present invention: the second clamping part includes two second clamping blocks symmetrically distributed up and down; a movable plate is provided at one end of the two second clamping blocks away from each other; wherein a pressure hollow cylinder is opened in the middle of the movable plate, and a sliding rod is provided on the second clamping block, which is slidably connected to the pressure hollow cylinder, and the sliding rod can slide freely in the pressure hollow cylinder, and the sliding rod and the pressure hollow cylinder are connected by a second spring.

[0008] In a preferred embodiment of the overhaul slag recycling system described in the present invention: a pressure relief hole is opened in the lower half of the pressure hollow cylinder. When the internal pressure of the pressure hollow cylinder reaches a preset threshold, the slide rod is displaced due to the action of the internal pressure, thereby exposing the pressure relief hole to release excessive pressure. The top of the pressure hollow cylinder is connected to the driving part through a pipeline, and the driving part can guide the movement of the slide rod and control the clamping or release state of the second clamping block.

[0009] In a preferred embodiment of the overhaul slag recycling system described in the present invention: a slot is provided at the inlet and outlet ends of the resistance furnace, the slot is used to accommodate the horizontal sliding of the movable plate, a positioning rod is provided inside the slot, and the positioning rod passes through the movable plate.

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

[0011] In a preferred embodiment of the overhaul slag recycling system described in the present invention: the driving part includes a box body, which is fixed to the outside of the resistance furnace; the box body is filled with a solution, wherein the solution can absorb the heat generated by the resistance furnace when it is working and vaporize to form high-pressure gas; an outlet is provided on the box body and is connected to the pressure hollow cylinder through a pipe, which is used to guide the high-pressure gas from the box body to the pressure hollow cylinder.

[0012] In a preferred embodiment of the overhaul slag recycling system described in the present invention: a detection component is provided inside the inlet and outlet ends of the resistance furnace, and the detection component includes a tube body, one end of the tube body is connected to the pressure relief hole, and the other end is connected to the lower half of the telescopic seat; a sealing tube, movably arranged inside the tube body, for controlling gas circulation; a driving seat, connected to the sealing tube, for controlling the movement of the sealing tube in the tube body; at least one circular hole is provided in the tube body, allowing gas to enter the sealing area from the inside of the tube body to detect the sealing between the second clamping block and the storage tube.

[0013] In a preferred embodiment of the overhaul slag recycling system described in the present invention: a guide groove is provided in the drive seat, and the guide groove is used to accommodate and guide the push rod to slide; a storage cavity connected to the guide groove is provided inside the drive seat; a sealed sliding connection is adopted between the push rod and the guide groove, so that the push rod can move smoothly in the guide groove while maintaining air tightness; wherein, the storage tube is assembled by a plurality of hollow tubes, each hollow tube having at least one openable and closable cover plate, and the cover plate is hinged on the surface of the hollow tube; the plurality of hollow tubes are connected to each other by a rotating member, allowing relative rotation between adjacent hollow tubes, thereby facilitating the adjustment of the position of the hollow tube to facilitate the storage and access of overhaul slag; a locking mechanism is provided on the cover plate to ensure that the cover plate remains closed during transportation or heating to prevent accidental opening.

[0014] In order to solve the above technical problems, the present invention also provides the following technical solutions: a recycling method for an overhaul slag recycling system, comprising an overhaul slag recycling system, and a storage tube for accommodating the overhaul slag to be processed, and cooperating the storage tube with a resistance furnace for heating the overhaul slag in the storage tube; using a first clamping part to seal and clamp the storage tube in a first state; after reaching a predetermined heating time, the controller opens the gas valve to allow compressed gas to enter the channel, separates the first clamping part from the storage tube in a second state, and drives the second clamping part to clamp the storage tube; uses the second clamping part to carry the storage tube to move to the inside of the resistance furnace for heating treatment; realizes horizontal sliding of the movable plate through the positioning rod and the elastic bellows, thereby pushing the storage tube to be continuously sent into the resistance furnace.

[0015] The beneficial effect of this invention lies in the fact that, through the design of a step-by-step clamping assembly, overhaul slag can be continuously heated without shutting down the resistance furnace. This continuous operation mode greatly improves waste processing efficiency and reduces downtime caused by waiting for the resistance furnace to cool and reheat. This invention is designed for treating waste generated by the electrolytic aluminum industry, particularly waste containing carbon and other valuable components. By converting this waste into high-value-added products such as silicon carbide and graphitized carbon products, it not only alleviates environmental pollution issues but also achieves effective resource recycling.

[0016] A detection component is used to ensure the sealing performance between the storage tube and the step-by-step clamping assembly during the high-temperature treatment process. This not only prevents the leakage of harmful gases and ensures a safe working environment, but also ensures the stability of the treatment process.

[0017] The storage tube is composed of multiple hollow tubes, which can be connected to each other through rotating parts and rotate relative to each other. This design increases the flexibility of the storage device and facilitates adjustment of 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 following briefly introduces the drawings of the embodiments of the present invention. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Among them:

[0019] Figure 1 A perspective view of a system for recycling overhaul slag is shown;

[0020] Figure 2 A partial cross-sectional view of a stepping clamping assembly of a heavy repair slag recycling system is shown;

[0021] Figure 3 A cross-sectional plan view of a step-by-step clamping assembly of a major overhaul slag recycling system is shown;

[0022] Figure 4 A diagram showing the first clamping part of a system for recycling overhaul slag under pressure is shown;

[0023] Figure 5 A perspective view of a second clamping portion of a system for recycling overhaul slag is shown;

[0024] Figure 6 A diagram showing the movement of a storage tube driven by the second clamping part of a system for recycling overhaul slag is shown;

[0025] Figure 7 A perspective view of a detection component of an overhaul slag recycling system is shown;

[0026] Figure 8A cross-sectional view of a drive seat of a heavy repair slag recycling system is shown. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below with reference to specific embodiments and the accompanying drawings.

[0028] The terms used in the present invention are those commonly used in the art in view of the functions of the present invention, but these terms may vary according to the intentions of those skilled in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in such cases, 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 rather as the meanings of the terms and the overall description of the present invention.

[0029] Reference Figure 1-Figure 2 and Figure 6 The present embodiment provides a system for recycling overhaul slag, comprising a resistance furnace 1; a storage tube 2; the storage tube 2 is used to accommodate the overhaul slag to be processed; a resistance wire is provided inside the resistance furnace 1 for heating the overhaul slag in the storage tube 2 to convert it into silicon carbide and graphitized carbon products; step-by-step clamping assemblies 3 are respectively installed at the inlet and outlet ends 115 of the resistance furnace 1, each step-by-step clamping assembly 3 comprising 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 can seal and clamp the storage tube 2 in the first state to ensure the stability of the internal environment of the storage tube 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 tube 2 and moves the second clamping part 32 with the storage tube 2 to the inside of the resistance furnace 1; wherein, the stepping clamping assembly 3 can continuously heat the overhaul slag without shutting down the resistance furnace 1, thereby improving the recovery and processing efficiency of the overhaul slag.

[0030] In this embodiment, the present invention is used to treat the overhaul slag produced by the electrolytic aluminum industry. The overhaul slag usually contains a certain amount of carbon and other valuable components, such as fluoride.

[0031] Resistance furnace 1 houses a resistance wire, which heats a storage tube 2 placed within it. This tube, a container for the overhaul slag to be processed, acts as a support throughout the entire processing process, ensuring that the slag is heated in a controlled environment. By controlling the current flowing through the resistance wire, the temperature within resistance furnace 1 can be precisely adjusted, effectively heating the overhaul slag.

[0032] When the process begins, the overhaul slag is placed in the storage tube 2, and the storage tube 2 is sealed and clamped by the first clamping part 31 of the step-by-step clamping assembly 3. This process ensures the stability of the internal environment of the storage tube 2 during the heating process, and prevents external factors from interfering with the chemical reaction. The driving part 33 includes a controller and a gas valve 331. When the predetermined heating time is reached, the controller triggers the gas valve 331 to open, allowing compressed gas to enter the channel and push the second clamping part 32 to move. This step enables the second clamping part 32 to clamp the storage tube 2, and at the same time, drives the first clamping part 31 to separate from the storage tube 2, and without shutting down the resistance furnace 1, the storage tube 2 is moved into the furnace to continue heating. The processing efficiency is greatly improved because new overhaul slag can be heated continuously without having to wait for the resistance furnace 1 to completely cool down before adding new materials.

[0033] Inside resistance furnace 1, high temperatures induce a series of physical and chemical changes in the overhaul slag. For overhaul slag with a high carbon content, as the temperature rises, the carbon may separate from impurities and gradually graphitize, forming high-quality graphitized carbon products. Furthermore, under certain conditions, high-value-added products such as silicon carbide may also be produced.

[0034] refer to Figure 2-Figure 4In one embodiment provided in the present application, the first clamping portion 31 includes two first clamping blocks 311 symmetrically distributed in the upper and lower parts; the first clamping block 311 includes a telescopic seat 3111, and an arc-shaped clamping block 3112 is slidingly 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, prompting the arc-shaped clamping block 3112 to move axially along the telescopic seat 3111, thereby moving away from the storage tube 2; an electric push rod is installed at the inlet and outlet end 115 of the resistance furnace 1 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; a movable plate 322 is provided at one end of the two second clamping blocks 321 away from each other; wherein, a pressure hollow cylinder 323 is opened in the middle of the movable plate 322, and a sliding rod 324 is provided on the second clamping block 321 and is slidably connected to the pressure hollow cylinder 323. 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 by a second spring. The second spring is used to In order to provide elastic force to keep the slide bar 324 in the initial position, a pressure relief hole 3231 is opened in 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 will be displaced due to the action of 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 part 33, and the driving part 33 can guide the movement of the slide bar 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 arranged vertically. Each first clamping block 311 is internally provided with a telescopic seat 3111, within which a curved clamping block 3112 is slidably mounted, and the two are securely connected by a first spring. When the pressure within the telescopic seat 3111 reaches a predetermined threshold, this pressure acts on the curved clamping block 3112, pushing it axially along the telescopic seat 3111, thereby moving it away from the storage tube 2. To control this process and adjust the position of the first clamping block 3111, an electric push rod is provided, mounted at the inlet and outlet end 115 of the resistance furnace 1. Specifically, during the initial heating of the storage tube 2, the electric push rod applies pressure to the telescopic seat 3111, which, through the first spring, applies a stable pressure, causing the curved clamping block 3112 to seal and clamp the storage tube 2.

[0036] Secondly, the second clamping portion 32 is similarly composed of two second clamping blocks 321 symmetrically arranged in a vertical direction. Each of these clamping blocks is provided with a movable plate 322 at one end, and a pressure hollow cylinder 323 is provided in the middle of the movable plate 322. A sliding rod 324 is provided on the second clamping block 321, which is slidably connected to the pressure hollow cylinder 323. The sliding rod 324 can slide freely 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 maintain the sliding rod 324 in its initial position. In addition, a pressure relief hole 3231 is provided 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 shift under the action of the internal pressure, sealingly clamping the storage tube 2 and exposing the pressure relief hole 3231, thereby transporting excess gas through a pipe to the interior of the telescopic seat 3111.

[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 and outlet end 115, so that the overall sealing effect can be maintained when the second clamping block 321 moves.

[0039] refer to Figure 3-6 In some embodiments, the second clamping portion 32 includes two symmetrically arranged second clamping blocks 321 for clamping the storage tube 2; each second clamping block 321 is provided with a movable plate 322 on its outer periphery. A pressure hollow cylinder 323 is provided in the center of the movable plate 322. A sliding rod 324 is provided on the second clamping block 321, which is slidably connected to the pressure hollow cylinder 323, allowing the sliding rod 324 to move linearly along the pressure hollow cylinder 323. The sliding rod 324 and the pressure hollow cylinder 323 are connected by a second spring, which provides a restoring force to maintain the sliding rod 324 in its initial position in the absence of external force. The driving portion 33 is used to apply pressure to the pressure hollow cylinder 323. A slot is provided at the inlet and outlet end 115 of the resistance furnace 1, and the slot is used to accommodate the horizontal sliding of the movable plate 322. A positioning rod 11 is provided inside the slot, and the positioning rod 11 passes through the movable plate 322, so that the movable plate 322 can slide along the positioning rod 11; 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 when inflated; a second clamping block 321 is provided on the movable 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 away from the elastic bellows 111, and the return spring 112 is used to push the movable plate 322 back to its initial position after the elastic bellows 111 is deflated.

[0040] In this embodiment, a slot is provided at the inlet and outlet end 115 of the resistance furnace 1. The slot is used to accommodate the horizontal sliding of the movable plate 322. A positioning rod 11 is provided inside the slot and passes through the movable plate 322, allowing the movable plate 322 to slide along the positioning rod 11. An elastic bellows 111 is sleeved on the outside of one end of the positioning rod 11. When the elastic bellows 111 is inflated, it expands and pushes the movable plate 322 to slide along the positioning rod 11. The elastic bellows 111 is connected to the air hole 3113 through a pipe, thereby realizing the delivery of gas and the automatic pushing of the storage tube 2. A return spring 112 is also sleeved on the end of the positioning rod 11 away from the elastic bellows 111. Its purpose is to use the force of the spring to push the movable plate 322 back to its initial position after the elastic bellows 111 is deflated, thereby preparing for the next operation cycle.

[0041] During the entire operational process, when the storage tube 2 needs to be transported into the resistance furnace 1 for processing, the drive unit 33 activates and applies pressure to the pressure hollow cylinder 323, prompting the slide rod 324 to drive the second clamping block 321 to clamp the storage tube 2 while simultaneously separating the first clamping block 311 from the storage tube 2. Subsequently, the elastic bellows 111 inflates, pushing the movable plate 322 forward along the positioning rod 11, thereby transporting the storage tube 2 into the resistance furnace 1. After processing is complete, the controller opens the air release valve 331, thereby releasing the gas within the elastic bellows 111, the pressure hollow cylinder 323, or the telescopic seat 3111. The elastic bellows 111 deflates and contracts, causing the return spring 112 to activate, pulling the movable plate 322 back to its initial position. Simultaneously, the second clamping block 321, under the action of the second spring, returns to its initial state, releasing the storage tube 2. This completes a complete operating cycle.

[0042] refer to Figure 2-Figure 5 In one embodiment provided herein, the driving unit 33 includes a housing 3312 fixed to the outside of the resistance furnace 1; a solution filled within the housing 3312, wherein the solution absorbs heat generated by the resistance furnace 1 during operation and vaporizes to form high-pressure gas; and a gas outlet 332 disposed on the housing 3312 and connected to the pressure hollow cylinder 323 via a pipe, for directing the high-pressure gas from the housing 3312 to the pressure hollow cylinder 323. The design of the housing 3312, the solution, and the gas outlet 332 enables the solution to be efficiently converted into high-pressure gas during operation of the resistance furnace 1 and stably transmitted to the pressure hollow cylinder 323 via the pipe, thereby effectively driving the mechanical components connected to the pressure hollow cylinder 323. The solution is selected from water, oil, or other medium suitable for undergoing a phase change within the temperature range provided by the resistance furnace 1 to generate high-pressure gas.

[0043] In this embodiment, housing 3312 is fixed to the outside of resistance furnace 1 and is filled with a specific solution, such as water, oil, or other medium that absorbs heat and undergoes a phase change to form a high-pressure gas when resistance furnace 1 is operating. When resistance furnace 1 begins operating and generates heat, this heat is absorbed by the solution in housing 3312, causing the solution to vaporize and become a high-pressure gas.

[0044] Box 3312 includes a gas outlet 332, where a gas valve 331 is located. This valve is connected to the pressure cylinder 323 via a pipe. This ensures that the high-pressure gas generated by the vaporization of the solution can be smoothly transferred from box 3312 to the pressure cylinder 323. The pressure cylinder 323 plays a dual role: on the one hand, it receives the high-pressure gas from box 3312; on the other hand, it converts the pressure of this high-pressure gas into mechanical motion, thereby driving the mechanical components connected to it.

[0045] refer to Figure 3-Figure 5 and Figure 7-Figure 8 As an optional embodiment, a detection assembly 4 is provided inside the inlet and outlet end 115 of the resistance furnace 1. The detection assembly 4 includes a tube body 41, one end of the tube body 41 is connected to the pressure relief hole 3231, and the other end is connected to the lower half of the telescopic seat 3111; a blocking tube 42 is movably arranged inside the tube body 41 for controlling gas circulation; a driving seat 43 is connected to the blocking tube 42 for controlling the movement of the blocking tube 42 in the tube body 41; wherein, when gas flows into the tube body 41 from the pressure relief hole 3231, under the action of gas pressure, the second clamping block 321 is sealed and fitted with the storage tube 2, and at the same time, the first clamping block 311 It also maintains a fit state with the storage tube 2, thereby forming a sealed area inside the tube body 41; at least one circular hole 44 is provided in the tube body 41, allowing gas to enter the sealed area from the inside of the tube body 41 to detect the sealing between the second clamping block 321 and the storage tube 2 and prevent the leakage of toxic gas; when the pressure in the sealed area rises to a preset threshold, the plugging tube 42 is pushed up by the push rod 432, so that the plugging tube 42 is aligned with the cavity opened in the tube body 41, and the gas is guided to the inside of the first clamping block 311, prompting the compressed gas to push the arc-shaped clamping block 3112 to separate from the storage tube 2 for subsequent operations. A guide groove 431 is provided in the driving seat 43, and the guide groove 431 is used to accommodate and guide the push rod 432 to slide; a storage cavity 433 connected to the guide groove 431 is provided inside the driving seat 43; 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 air tightness; when the push rod 432 is subjected to 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 sealing tube 42 and a drive seat 43. One end of the tube body 41 is connected to the pressure relief hole 3231, and the other end is connected to the lower half of the telescopic seat 3111, forming a channel. When the 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. In this process, the sealing 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 drive seat 43 is responsible for controlling the position of the sealing tube 42, that is, determining whether the sealing tube 42 is in a state of blocking or allowing gas to pass through.

[0047] Furthermore, when gas enters the tube body 41, under the influence of gas pressure, the second clamping block 321, pushed by the gas, will seal and clamp the storage tube 2, while the first clamping block 311 also remains in contact with the storage tube 2. This dual clamping mechanism ensures that a completely sealed area is formed within the two. To verify the effectiveness of this sealed area and prevent toxic gas leakage, at least one circular hole 44 is provided in the tube body 41. These holes 44 allow gas to enter the sealed area for testing. If the pressure in the sealed area rises to a preset threshold, it indicates that the seal is effective; otherwise, it may indicate a risk of leakage.

[0048] Once the pressure in the sealing area reaches the set safety threshold, the push rod 432 is activated, pushing the blocking tube 42 upward, aligning it with the cavity defined within the tube body 41. At this point, the previously blocked airflow is redirected, flowing through a new path into the first clamping block 311. This step utilizes the force of compressed gas to separate the arc-shaped clamping block 3112 from the storage tube 2, facilitating subsequent operations.

[0049] It should be noted that when the first clamping block 311 is separated from the storage tube 2, the seal formed by the first clamping block 311 and the second clamping block 321 is no longer effective. To ensure consistent alignment between the sealing tube 42 and the internal cavity of the tube body 41, the storage cavity 433 can be filled with a viscous medium, and the size of the communication hole between the guide groove 431 and the storage cavity 433 can be adjusted. This allows the push rod 432 to recover at a controlled speed even if insufficient pressure is applied to the push rod 432. This ensures that the second clamping block 321 can properly deliver the storage tube 2 into the resistance furnace 1. This not only improves operational reliability but also ensures a smooth process.

[0050] Furthermore, the drive base 43 is internally provided with a guide groove 431. This groove not only accommodates but also guides the sliding direction of the push rod 432, ensuring the accurate movement trajectory of the push rod 432. Furthermore, the drive base 43 is internally provided with a storage chamber 433, connected to the guide groove 431, which is used to maintain a certain internal pressure. When a certain external force is applied, if the external pressure exceeds the pressure within the storage chamber 433, the push rod 432 will slide along the guide groove 431, thereby adjusting the position of the blocking tube 42.

[0051] refer to Figure 1 In some embodiments, the storage tube 2 is assembled from a plurality of hollow tubes 21, each hollow tube 21 having at least one openable and closable cover plate 22, which is hinged on the surface of the hollow tube 21; the plurality of hollow tubes 21 are connected to each other by a rotating member, allowing adjacent hollow tubes 21 to rotate relative to each other, thereby facilitating adjustment of the position of the hollow tubes 21 to facilitate the storage and retrieval of overhaul slag; a locking mechanism is provided on the cover plate 22 to ensure that the cover plate 22 remains closed during transportation or heating to prevent accidental opening.

[0052] In this embodiment, each hollow tube 21 serves as a basic storage unit, its internal space being used to store overhaul slag. These hollow tubes 21 do not exist in isolation, but are interconnected via rotating elements to form a single, integrated structure. The rotating elements allow adjacent hollow tubes 21 to rotate relative to each other, providing significant flexibility in adjusting their positions and facilitating storage of overhaul slag at various angles and locations. This system is suitable for processing irregularly shaped or large waste slag, as the angles of the individual hollow tubes 21 can be flexibly adjusted to accommodate varying storage requirements.

[0053] Secondly, to facilitate the storage and retrieval of overhaul slag, each hollow tube 21 is equipped with a retractable cover 22. These covers 22 are hinged to the surface of the hollow tube 21, allowing them to flip along the hinge axis to open and close. When overhaul slag needs to be stored, the operator simply opens the corresponding cover 22 and places the waste slag into the hollow tube 21. After storage and retrieval, the cover 22 is closed. This simple and quick process greatly improves work efficiency.

[0054] The cover 22 is equipped with a locking mechanism. This mechanism automatically locks the cover 22 when it is closed, ensuring that the cover 22 remains closed under all circumstances. This means that the cover 22 will not accidentally open due to vibrations during transportation or thermal expansion and contraction during heating.

[0055] A recycling method for an overhaul slag recycling system is disclosed. A storage tube 2 is used to hold overhaul slag to be processed. The storage tube 2 is heated by coupling it to a resistance furnace 1. During operation, a first clamping portion 31 seals and clamps the storage tube 2 in a first state to ensure safe and effective heat treatment preparation. After the predetermined heating time is reached, a controller opens a gas valve 331 to allow compressed gas to enter the relevant passageway. In a second state, the first clamping portion 31 separates from the storage tube 2, while the second clamping portion 32 activates and clamps the storage tube 2. Subsequently, the storage tube 2 is carried by the second clamping portion 32 and moved into the resistance furnace 1 for heating. The entire movement process is accomplished by using an elastic bellows 111 to enable the horizontal sliding of the movable plate 322, thereby continuously pushing the storage tube 2 into the resistance furnace 1, ensuring that the storage tube 2 can smoothly and stably enter the resistance furnace 1 and complete the heating process.

[0056] Finally, it should be pointed out that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways without departing 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 accommodate 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) includes 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) includes 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, separates the first clamping part (31) from the storage tube (2) in the second state, and drives the second clamping part (32) to clamp the storage tube (2), and causes the second clamping part (32) to carry the storage tube (2) and move into the interior of the resistance furnace (1); 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 provided 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). 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 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; The two second clamping blocks (321) are each provided with a movable plate (322) at one end away from each other; A pressure hollow cylinder (323) is provided in the middle of the movable plate (322), and a sliding rod (324) is provided on the second clamping block (321) and is slidably connected to the pressure hollow cylinder (323). 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. 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 part (33) through a pipeline. The driving part (33) can guide the movement of the slide bar (324) and control the clamping or loosening state of the second clamping block (321).

2. The overhaul slag recycling system according to claim 1, 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).

3. The overhaul slag recycling system according to claim 2, 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 in an inflated state and push the movable plate (322) to slide along the positioning rod (11); 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).

4. The overhaul slag recycling system according to claim 3, characterized in that: The driving unit (33) includes: A box (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 provided 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).

5. The overhaul slag recycling system according to claim 4, 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) includes: a tube body (41), one end of the tube body (41) being in communication with the pressure relief hole (3231), and the other end of the tube body (41) being in communication with the lower half of the telescopic seat (3111); A blocking tube (42) movably disposed inside the tube body (41) for controlling gas flow; A driving seat (43) connected to the blocking tube (42) and used to control 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), allowing gas to enter the sealing area from the inside of the tube body (41) to detect the sealing between the second clamping block (321) and the storage tube (2).

6. The overhaul slag recycling system according to claim 5, characterized in that: A guide groove (431) is provided in the driving seat (43), and the guide groove (431) is used to accommodate and guide the push rod (432) to slide; a storage cavity (433) is provided inside the driving seat (43) and is communicated 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 and closable 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 closed during transportation or heating.

7. A recycling method for an overhaul slag recycling system, characterized by: The invention comprises a heavy repair slag recycling system according to any one of claims 1 to 6, and A storage tube for accommodating the overhaul slag to be processed, and coordinated 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 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 portion and moved into the resistance furnace for heating treatment; The horizontal sliding of the moving plate is achieved by the positioning rod and the elastic bellows, thereby pushing the storage tube to be continuously fed into the resistance furnace.

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