Push boat type low-temperature carbonization heat treatment furnace

Abstract

The utility model provides a boat pushing type low-temperature carbonization heat treatment furnace, and belongs to the technical field of heat treatment. The carbonization heat treatment furnace comprises a loading platform, a floating track, a feeding vacuum chamber, a heating chamber, a cooling chamber, a material conveying device, a transition roller way, a folding roller way and a discharging replacement chamber, the feeding platform is connected with the feeding vacuum chamber through the floating track, the material track of the cooling chamber and the material track of the discharging replacement chamber are seamlessly connected through the folding roller way, space is saved, production efficiency is improved, meanwhile, mechanical movement transmission is conducted through the air cylinder and the two-connecting-rod mechanism, and the transmission failure rate is reduced; through the material conveying device, the transition roller way and other transmission mechanisms, long-time stable and reliable operation of material conveying is guaranteed, the phenomena of boat clamping, boat jacking and the like are avoided, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment technology, and in particular to a pushboat-type low-temperature carbonization heat treatment furnace. Background Technology

[0002] Adaptive modifications to key processes in fuel element production and continuous low-temperature carbonization furnaces are necessary to ensure continuous and stable production of spherical elements and improve the operational stability and intelligent automation of continuous low-temperature carbonization furnaces for spherical elements. These are issues that need to be considered in the current application and development of carbonization furnaces. Existing conventional push-boat type low-temperature carbonization furnaces are prone to problems such as boat jamming and boat tipping due to uneven heating temperatures, thermal expansion, and a lack of stable and reliable connections between processes. This reduces production efficiency and seriously affects the continuous operation of the furnace and product quality. Based on this, this utility model proposes a novel push-boat type low-temperature carbonization heat treatment furnace. Utility Model Content

[0003] To address the problems in the existing technology, this utility model designs a push-boat type low-temperature carbonization heat treatment furnace, which ensures uniform heating and stable and reliable material conveying for a long time, thereby improving production efficiency.

[0004] The technical solution of this utility model is as follows:

[0005] A pushboat-type low-temperature carbonization heat treatment furnace includes a feeding platform, a floating track, a feeding vacuum chamber, a heating chamber, a cooling chamber, a material conveying device, a folding roller conveyor, and a discharge replacement chamber;

[0006] The floating track is located between the loading platform and the feeding vacuum chamber, and the material track of the loading platform and the feeding vacuum chamber is connected by lifting and lowering movement;

[0007] The feeding vacuum chamber, heating chamber, and cooling chamber are connected in sequence.

[0008] The material conveying device is connected to the material trolley in the feeding vacuum chamber and the cooling chamber respectively, and drives the material trolley to transport materials;

[0009] The discharge replacement chamber is equipped with folding roller conveyors at both the inlet and outlet ends. The folding roller conveyor at the inlet end connects the material track of the discharge replacement chamber to the material track of the cooling chamber through a flattening motion, and the folding roller conveyor at the outlet end receives the material sent out by the discharge replacement chamber through a flattening motion.

[0010] Furthermore, the floating track includes a lifting platform, a floating track seat, a guide rail seat, a crank arm, a bearing, a cylinder, a pulley system, and a steel wire rope. Two sets of crank arms are symmetrically arranged between the lifting platform and the floating track seat. The guide rail seat is mounted on the floating track seat and has an elongated through hole. Each set of crank arms consists of two support rods connected crosswise at the center by a first pin and can rotate around the first pin. The top ends of the two support rods are distributed along the length of the guide rail seat and are movably connected to the bottom of the lifting platform. The bottom end of one support rod is movably connected to the floating track seat, and the bottom end of the other support rod is connected to one end of a second pin. The other end of the second pin passes through the elongated through hole of the guide rail seat and connects to the inner ring of the bearing. One end of the steel wire rope is fixed to the second pin, and the other end is connected to the cylinder via the pulley system. The cylinder's extension and retraction drive the support rods to move along the guide rail seat through the outer ring of the bearing, thereby causing the crank arm to extend and retract as a whole, realizing the platform lifting function.

[0011] Furthermore, the material conveying device includes a motor, a reducer, a coupling, a gear, and a rack; the motor is connected to the reducer via the coupling, the output shaft of the reducer is connected to the gear, the gear is connected to the rack, and the rack is connected to the material trolley. The motor drives the gear and rack transmission to move the material trolley on the track in the feeding vacuum chamber and the cooling chamber to convey materials.

[0012] Furthermore, the folding roller conveyor includes a folding roller base, rollers, cylinders, connecting rods, a motor, and a coupling; the rollers are composed of fixed rollers, connecting rollers, and movable rollers connected in pairs by a drive chain, with several fixed rollers and movable rollers provided, wherein the outer fixed rollers are connected to the motor via a coupling; both the fixed rollers and the connecting rollers are mounted on the folding roller base; the two ends of the connecting rollers are respectively connected to connecting plates, and the connecting plates can rotate around the connecting rollers; the movable rollers are connected between the two connecting plates; the connecting plates are connected to the cylinders via connecting rods I and II; the cylinders are mounted on the folding roller base via cylinder brackets; the cylinders drive connecting rods I and II, thereby driving the movable rollers to perform flattening and folding movements.

[0013] Furthermore, the feeding platform includes a welding platform and a servo electric pusher cylinder; the servo electric pusher cylinder is installed on the welding platform and is used to push the pallet material placed on the welding platform onto the material trolley in the feeding vacuum chamber;

[0014] The feeding vacuum chamber is equipped with a liftable feeding furnace door and a discharge furnace door at the feeding end and the discharging end, respectively. The bottom of the feeding vacuum chamber is equipped with a material trolley track, and the top of the feeding vacuum chamber is equipped with a vacuum pump group for drawing a vacuum and performing gas replacement to provide an argon atmosphere environment for the material.

[0015] Furthermore, the heating chamber has a servo-electric pusher cylinder on the feed end face to push the material from the feed vacuum chamber into the heating chamber; thermocouples are provided on the top and side walls of the heating chamber; a heating element is provided inside the heating chamber and the heating element is located on the upper and lower sides of the material to heat the material according to the temperature rise curve.

[0016] Furthermore, the cooling chamber includes a first cooling chamber and a second cooling chamber connected in sequence; the feed end and discharge end of the first cooling chamber are respectively connected to the discharge end of the heating chamber and the feed end of the second cooling chamber; a furnace door is provided between the first cooling chamber and the second cooling chamber, mainly to prevent the heat from the first cooling chamber from diffusing into the second cooling chamber; a material trolley track is provided at the bottom of the first cooling chamber, a material position detection device is provided on the end face, and a dew point detector and a pressure sensor are provided on the side;

[0017] The discharge end face of the second cooling chamber is equipped with a discharge servo electric push cylinder for pushing the material into the next process; the bottom of the second cooling chamber is equipped with a material trolley track.

[0018] Furthermore, the feed end and discharge end of the discharge replacement chamber are respectively equipped with liftable feed furnace door and discharge furnace door; the outer sides of the feed furnace door and discharge furnace door are respectively equipped with folding roller conveyors, and the discharge furnace door is equipped with a material detection device; the bottom of the discharge replacement chamber is equipped with a transition roller conveyor for material conveying; a vacuum pump group is installed on the top of the discharge replacement chamber to replace the argon gas in the chamber with air.

[0019] Furthermore, the transition roller conveyor includes a drive motor, a coupling, transition rollers, a transition roller base, a chain, and a sprocket; the transition rollers are mounted on the transition roller base, and there are a total of several of them, with each pair of transition rollers connected by a chain and sprocket; the drive motor is connected to one transition roller through the coupling, and drives the remaining transition rollers to rotate through the chain and sprocket transmission, thereby realizing material conveying.

[0020] Furthermore, it also includes an argon gas supply system, a cooling water supply system, and an electrical control system; the argon gas supply system is connected to the feeding vacuum chamber, heating chamber, cooling chamber, and discharging replacement chamber, controlling the argon gas and oxygen content in each chamber to ensure that the atmosphere meets the process requirements; the cooling water supply system is connected to the cooling chamber, providing circulating cooling water to cool and lower the temperature of the material pushed from the heating chamber; the electrical control system is connected to the argon gas supply system, the cooling water supply system, the feeding vacuum chamber, the heating chamber, the cooling chamber, the material conveying device, the folding roller conveyor, and the discharging replacement chamber.

[0021] The beneficial effects of this utility model are as follows: The low-temperature carbonization furnace described in this utility model achieves seamless connection of material tracks between different processes and saves space by designing floating tracks and folding rollers. At the same time, mechanical motion transmission is carried out through cylinders and two-bar linkages, reducing the transmission failure rate. Through material conveying devices and transmission mechanisms such as transition rollers, the material conveying is ensured to operate smoothly and reliably for a long time without jamming or top-loading, thus improving production efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram showing the connection between the feeding platform and the feeding vacuum chamber.

[0023] Figure 2 The diagram shows the structure of the floating track, where (a) is the front view and (b) is the side view.

[0024] Figure 3 This is a schematic diagram showing the connection between the feeding vacuum chamber and the heating chamber.

[0025] Figure 4 This is a schematic diagram of the heating chamber (I).

[0026] Figure 5 This is a schematic diagram of the heating chamber (II).

[0027] Figure 6 This is a schematic diagram of the structure of cooling chamber one and cooling chamber two.

[0028] Figure 7 This is a schematic diagram showing the connection between the cooling chamber and the discharge replacement chamber.

[0029] Figure 8 This is the front view of the transition roller conveyor.

[0030] Figure 9 This is a schematic diagram of the folding roller conveyor, where (a) is the front view, (b) is the side view, and (c) is the top view.

[0031] In the diagram: 1. Feeding platform; 2. Floating track; 3. Feeding vacuum chamber; 4. Heating chamber; 5. Material conveying device; 6. Cooling chamber 1; 7. Cooling chamber 2; 8. Discharge replacement chamber; 9. Folding roller conveyor; 10. Servo electric push cylinder; 11. Welding platform; 12. Feeding furnace door I; 13. Discharge furnace door I; 14. Lifting platform; 15. Floating track seat; 16. Guide rail seat; 17. Crank arm; 18. Bearing; 19. Cylinder I; 20. Pulley block; 21. Wire rope; 22. Furnace shell; 23. Adding... 24. Heating element; 25. Thermocouple; 26. Inspection port; 27. Feed furnace door II; 28. Discharge furnace door II; 29. ​​Transition roller conveyor; 30. Drive motor; 31. Coupling I; 32. Transition roller base; 33. Chain and sprocket; 34. Folding roller base; 35. Fixed roller; 36. Connecting roller; 37. Movable roller; 38. Drive chain; 39. Cylinder II; 40. Cylinder bracket; 41. Connecting rod I; 42. Connecting rod II; 43. Motor; 44. Coupling II. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0033] This embodiment provides a pushboat-type low-temperature carbonization heat treatment furnace, including a feeding platform 1, a floating track 2, a feeding vacuum chamber 3, a heating chamber 4, a cooling chamber, a material conveying device 5, a folding roller conveyor 9, a discharging vacuum chamber 8, an argon gas supply system, a cooling water supply system, and an electrical control system.

[0034] like Figure 1 As shown, the feeding platform 1 includes a welding platform 11 and a servo electric pusher cylinder 10; wherein, the servo electric pusher cylinder 10 is disposed on the welding platform 11 and pushes the material placed on the welding platform 11 onto the material trolley of the discharge vacuum chamber.

[0035] like Figure 1 and 3 As shown, the feeding vacuum chamber 3 includes a sealing shell, a feeding furnace door I12, a discharging furnace door I13, and a vacuum pump unit; the sealing shell is a hollow shell structure, with a liftable feeding furnace door I12 and a discharging furnace door I13 at its feeding end and discharging end, respectively; a material trolley track is provided at the bottom of the sealing shell, and the material trolley is used to send the pallet material into the heating chamber along the track through a material conveying device; the vacuum pump unit is located at the top of the sealing shell and is connected to the gas supply pipeline and valves, and is used to draw a vacuum and perform gas replacement to provide an argon atmosphere environment for the material.

[0036] like Figure 2As shown, the floating track 2 is a feeding track connecting the feeding platform 1 and the feeding vacuum chamber 3. When the feeding vacuum chamber 3 needs to be fed, the feeding furnace door I12 opens, and the floating track 2 rises to smoothly carry the material into the feeding vacuum chamber 3. The floating track 2 includes a lifting platform 14, a floating track seat 15, a guide rail seat 16, a crank arm 17, a bearing 18, a cylinder I19, a pulley block 20, and a wire rope 21; the crank arm 17 is provided in two sets, and the two sets of crank arms 17 are symmetrically arranged between the lifting platform 14 and the floating track seat 15; the guide rail seat 16 is installed on the floating track seat 15 and has an elongated oval through hole; each set of crank arms 17 is formed by two support rods cross-connected in the middle by a first pin shaft and can rotate around the first pin shaft, and the tops of the two support rods are distributed along the length direction of the guide rail seat 16. The bottom of the lifting platform 14 is movably connected to the bottom of the two support rods. The bottom end of one of the support rods is movably connected to the floating rail seat 15, and the bottom end of the other support rod is connected to one end of the second pin. The other end of the second pin passes through the elongated through hole of the guide rail seat 16 and is connected to the inner ring of the bearing 18. One end of the wire rope 21 is fixed on the second pin, and the other end is connected to the cylinder I19 through the pulley block 20. The cylinder I19 extends and retracts, driving the support rod to move along the guide rail seat 16 through the outer ring of the bearing 18, thereby driving the crank arm 17 to extend and retract as a whole, realizing the lifting function of the platform.

[0037] like Figures 3-5 As shown, the heating chamber 4 includes a furnace shell 22, a heating element 23, and thermocouples 24. The furnace shell 22 is the outer shell of the heating chamber and is located at the discharge end of the feeding vacuum chamber. A servo-electric pusher cylinder is provided on the end face of the feeding end of the heating chamber to push the material from the discharge furnace door I13 of the feeding vacuum chamber into the heating chamber. An inspection port 25 is provided on the top of the furnace shell 22. Thermocouples 24 are provided on the top and side walls of the furnace shell 22. The heating element 23 is located inside the furnace shell and on the upper and lower sides of the material. It is used to heat the material according to the heating curve, strictly control the heating rate, ensure heating uniformity, monitor the furnace pressure and the atmosphere inside the furnace, and discharge the emitted phenolic resin outside the furnace.

[0038] like Figure 6 As shown, the cooling chamber includes a first cooling chamber 6 and a second cooling chamber 7. The first cooling chamber 6 is located between the heating chamber 4 and the second cooling chamber 7, and cools the material pushed from the heating chamber 4. It includes a shell, a dew point detector, and a pressure sensor. The shell is a double-shell water jacket structure, with its inlet and outlet ends connected to the outlet end of the heating chamber and the inlet end of the second cooling chamber, respectively. A liftable furnace door is provided between the first and second cooling chambers. A material trolley track is provided at the bottom of the shell, and the material is transported by the material conveying device. A material position detection device is provided on the end face of the shell, and a dew point detector and a pressure sensor are provided on the side of the shell.

[0039] The second cooling chamber 7 further cools the material from the first cooling chamber 6 and has discharge conditions, including a shell, a discharge servo electric push cylinder and a material trolley track; the shell is a double-shell water jacket structure, and its discharge end face is provided with a discharge servo electric push cylinder for pushing the material into the feeding folding roller track; the bottom of the shell is provided with a material trolley track, and the material trolley transports the material along the track through a material conveying device.

[0040] like Figure 1 As shown, the material conveying device 5 includes a motor, a reducer, a coupling, a gear, and a rack; the motor is connected to the reducer through the coupling, the output shaft of the reducer is connected to the gear, the gear is connected to the rack, and the rack is connected to the material trolley. The motor drives the gear and rack transmission to move the material trolley on the track to convey materials.

[0041] like Figure 7 As shown, the discharge replacement chamber 8 includes a shell, a transition roller conveyor 28, and a vacuum pump unit. The shell is the outer shell of the discharge replacement chamber, and its inlet end and outlet end are respectively provided with a feed furnace door II26 and a discharge furnace door II27. A feed folding roller conveyor connecting the cooling chamber and the discharge replacement chamber is provided on the outside of the feed furnace door II26. A material detection device is provided on the discharge furnace door II27, and a discharge folding roller conveyor for receiving the material sent out by the discharge replacement chamber is provided on the outside of the discharge furnace door II27. The transition roller conveyor 28 is located at the bottom of the shell and is used for material conveying. The vacuum pump unit is installed at the top of the discharge replacement chamber through a gas supply pipeline. The vacuum pump draws a vacuum and replaces the argon gas in the chamber with air, protecting the atmosphere inside the furnace and preparing for discharge.

[0042] like Figure 8 As shown, the transition roller conveyor 28 includes a drive motor 29, a coupling I30, transition rollers 31, a transition roller base 32, a chain, and a sprocket 33. The transition rollers 31 are mounted on the transition roller base 32, and there are a number of them. The transition rollers 31 are connected in pairs through the chain and sprocket 33. The drive motor 29 is connected to one transition roller through the coupling I30, and drives the other transition rollers to rotate through the sprocket and chain drive, thereby realizing material conveying.

[0043] like Figure 9As shown, the feeding folding roller conveyor and the discharging folding roller conveyor have the same structure, including a folding roller base 34, rollers, cylinder II 39, connecting rods, motor 43, and coupling II 44. The rollers are formed by connecting three fixed rollers 35, one connecting roller 36, and two movable rollers 37 in pairs via a drive chain 38. The three fixed rollers 35 and the connecting roller 36 are all mounted on the folding roller base 34. The outer fixed roller 35 is connected to the motor 43 via coupling II 44, and the inner fixed roller 35 is connected to the connecting roller 36 via the drive chain 38. Each end of the connecting roller 36 is connected to a connecting plate, and the connecting plate can rotate around the connecting roller. The two movable rollers 37 are connected between the two connecting plates. The connecting plate is connected to cylinder II 39 via connecting rod I 41 and connecting rod II 42. Cylinder II 39 is mounted on the folding roller base 34 via cylinder bracket 40. When the feed furnace door of the discharge replacement chamber is raised, the movable roller of the feed folding roller is flattened under the drive of cylinder II, seamlessly connecting the material track of the cooling chamber and the discharge replacement chamber. The material automatically enters the discharge replacement chamber along the roller track. After feeding is completed, the movable roller is automatically folded under the drive of cylinder II, and the feed furnace door of the discharge replacement chamber automatically descends.

[0044] The argon supply system is connected to the feed vacuum chamber, heating chamber, cooling chamber, and discharge replacement chamber, controlling the argon and oxygen content in each chamber to ensure that the atmosphere meets the process requirements.

[0045] The cooling water supply system is connected to the cooling chamber and provides circulating cooling water to the cooling chamber to cool and lower the temperature of the material pushed from the heating chamber.

[0046] The electrical control system is connected to the argon gas supply system, cooling water supply system, feeding vacuum chamber, heating chamber, cooling chamber, material conveying device, folding roller conveyor and discharging replacement chamber, and realizes real-time control functions such as argon gas on / off and argon gas flow monitoring, lifting furnace door, electric cylinder, material position, conveying speed, heating temperature, etc.

[0047] When the low-temperature carbonization furnace is working, the spherical billet material is placed on the material tray and pushed into the furnace through the transmission mechanism. The spherical billet is carbonized in the furnace by filling with argon gas and heating. After carbonization, the spherical billet is transported out of the furnace through the transition roller and folding roller. The spherical billet in the discharge state is not squeezed by external force and has no cracks.

[0048] Finally, it should be noted that the above embodiments are intended to illustrate the technical solutions of this utility model and do not constitute any limitation on this utility model. Those skilled in the art should fully understand that modifications to the technical solutions described in the foregoing embodiments or equivalent substitutions for any part or all of the technical features are entirely feasible. Such modifications or substitutions, as long as they do not deviate from the protection scope defined by the claims of this utility model, should be considered reasonable extensions of this utility model.

Claims

1. A pushboat-type low-temperature carbonization heat treatment furnace, characterized in that, It includes a feeding platform, a floating track, a feeding vacuum chamber, a heating chamber, a cooling chamber, a material conveying device, a folding roller conveyor, and a discharge replacement chamber; The floating track is located between the loading platform and the feeding vacuum chamber, and the material track of the loading platform and the feeding vacuum chamber is connected by lifting and lowering movement; The feeding vacuum chamber, heating chamber, and cooling chamber are connected in sequence. The material conveying device is connected to the material trolley in the feeding vacuum chamber and the cooling chamber respectively, and drives the material trolley to transport materials; The discharge replacement chamber is equipped with folding roller conveyors at both the inlet and outlet ends. The folding roller conveyor at the inlet end connects the material track of the discharge replacement chamber to the material track of the cooling chamber through a flattening motion, and the folding roller conveyor at the outlet end receives the material sent out by the discharge replacement chamber through a flattening motion.

2. The pushboat-type low-temperature carbonization heat treatment furnace according to claim 1, characterized in that, The floating track includes a lifting platform, a floating track seat, a guide rail seat, a crank arm, a bearing, a cylinder, a pulley system, and a steel wire rope. Two sets of crank arms are symmetrically arranged between the lifting platform and the floating track seat. The guide rail seat is mounted on the floating track seat and has an elongated through hole. Each set of crank arms consists of two support rods connected at the center by a first pin and can rotate around the first pin. The top ends of the two support rods are distributed along the length of the guide rail seat and are movably connected to the bottom of the lifting platform. The bottom end of one support rod is movably connected to the floating track seat, and the bottom end of the other support rod is connected to one end of a second pin. The other end of the second pin passes through the elongated through hole of the guide rail seat and connects to the inner ring of the bearing. One end of the steel wire rope is fixed to the second pin, and the other end is connected to the cylinder via the pulley system. The cylinder's extension and retraction cause the support rods to move along the guide rail seat through the outer ring of the bearing, thereby causing the crank arm to extend and retract as a whole, achieving platform lifting and lowering.

3. The pushboat-type low-temperature carbonization heat treatment furnace according to claim 1, characterized in that, The material conveying device includes a motor, a reducer, a coupling, a gear, and a rack. The motor is connected to the reducer via the coupling. The output shaft of the reducer is connected to the gear. The gear is connected to the rack. The rack is connected to the material trolley. The motor drives the gear and rack transmission to move the material trolley on the track in the feeding vacuum chamber and the cooling chamber to convey materials.

4. The pushboat-type low-temperature carbonization heat treatment furnace according to claim 1, characterized in that, The folding roller conveyor includes a folding roller base, rollers, cylinders, connecting rods, a motor, and a coupling. Each roller is composed of fixed rollers, connecting rollers, and movable rollers connected in pairs via a drive chain. Several fixed rollers and movable rollers are provided, with the outer fixed rollers connected to the motor via a coupling. Both the fixed rollers and the connecting rollers are mounted on the folding roller base. Connecting plates are connected to both ends of the connecting roller, and these connecting plates can rotate around the connecting roller. The movable roller is connected between the two connecting plates. The connecting plates are connected to the cylinder via connecting rods I and II. The cylinder is mounted on the folding roller base via a cylinder bracket. The cylinder drives connecting rods I and II, thereby driving the movable roller to perform flattening and folding movements.

5. A pushboat-type low-temperature carbonization heat treatment furnace according to claim 1, characterized in that, The feeding platform includes a welding platform and a servo electric pusher cylinder; the servo electric pusher cylinder is installed on the welding platform and is used to push the pallet material placed on the welding platform onto the material trolley in the feeding vacuum chamber. The feeding vacuum chamber is equipped with a liftable feeding furnace door and a discharge furnace door at the feeding end and the discharging end, respectively. The bottom of the feeding vacuum chamber is equipped with a material trolley track, and the top of the feeding vacuum chamber is equipped with a vacuum pump group to provide an argon atmosphere environment for the material.

6. A pushboat-type low-temperature carbonization heat treatment furnace according to claim 1, characterized in that, The heating chamber has a servo-electric pusher cylinder at the feed end face; thermocouples are provided on the top and side walls of the heating chamber; a heating element is provided inside the heating chamber and the heating element is located on the upper and lower sides of the material, which is used to heat the material according to the temperature rise curve.

7. A pushboat-type low-temperature carbonization heat treatment furnace according to claim 1, characterized in that, The cooling chamber includes a first cooling chamber and a second cooling chamber connected in sequence; the feed end and discharge end of the first cooling chamber are respectively connected to the discharge end of the heating chamber and the feed end of the second cooling chamber; a liftable furnace door is provided between the first cooling chamber and the second cooling chamber; material trolley tracks are provided at the bottom of both the first cooling chamber and the second cooling chamber; a discharge servo electric push cylinder is provided on the discharge end face of the second cooling chamber.

8. A pushboat-type low-temperature carbonization heat treatment furnace according to claim 1, characterized in that, The discharge replacement chamber is equipped with a liftable feed furnace door and a discharge furnace door at the feed end and discharge end, respectively; folding roller conveyors are provided on the outer side of the feed furnace door and the discharge furnace door; a transition roller conveyor for material conveying is provided at the bottom of the discharge replacement chamber; a vacuum pump group is installed on the top of the discharge replacement chamber to replace the argon gas in the chamber with air.

9. A pushboat-type low-temperature carbonization heat treatment furnace according to claim 8, characterized in that, The transition roller conveyor includes a drive motor, a coupling, transition rollers, a transition roller base, a chain, and a sprocket. The transition rollers are mounted on the transition roller base, and there are several of them, with each pair of transition rollers connected by a chain and sprocket. The drive motor is connected to one transition roller through the coupling, and drives the remaining transition rollers to rotate through the chain and sprocket transmission, thereby realizing material conveying.

10. A pushboat-type low-temperature carbonization heat treatment furnace according to claim 1, characterized in that, It also includes an argon gas supply system, a cooling water supply system, and an electrical control system; the argon gas supply system is connected to the feeding vacuum chamber, the heating chamber, the cooling chamber, and the discharging replacement chamber; the cooling water supply system is connected to the cooling chamber; and the electrical control system is connected to the argon gas supply system, the cooling water supply system, the feeding vacuum chamber, the heating chamber, the cooling chamber, the material conveying device, the folding roller conveyor, and the discharging replacement chamber.

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