Electric heating cracking furnace with waste heat recovery function

Abstract

The application discloses an electric heating cracking furnace with a waste heat recovery function, and relates to the technical field of cracking furnaces.The electric heating cracking furnace comprises a base, an electromagnetic heating box, a driving system, a furnace body, a spiral belt, a furnace door, a discharge pipe, an exhaust assembly, a feeding assembly and a cleaning assembly.In the process of heating and cracking tires, the feeding assembly can be operated to fill the tire raw materials, then the feeding assembly is connected with the exhaust assembly, and the heat of high-temperature flue gas can be used to preheat the tires in the feeding assembly, and after the tire cracking is completed, the cleaning assembly can be installed with the feeding assembly, the cleaning assembly is sent into the furnace body and abuts against the spiral belt, then the driving system is started to drive the furnace body to rotate reversely, the cleaning assembly can gradually push the steel wires peeled off after the tire cracking in the furnace body to the furnace door of the furnace body, and the cleaning assembly can also scrape off the carbon black attached to the inner wall of the furnace body and the spiral belt.

Description

Technical Field

[0001] This invention relates to the field of pyrolysis furnace technology, specifically an electrically heated pyrolysis furnace with waste heat recovery function. Background Technology

[0002] The refining process of waste tires in an electrically heated pyrolysis furnace is a continuous physicochemical process that decomposes macromolecular organic matter at controlled high temperatures in a closed, oxygen-deficient environment. At this high temperature, the rubber and other high-molecular polymers in the tires undergo bond breaking and decomposition, transforming into a mixture of gaseous hydrocarbons. These high-temperature oil and gas are extracted and sent to a condensation system, where they are cooled, liquefied, and separated to obtain pyrolysis oil, which can be used in ships and other applications after further processing.

[0003] In the prior art, such as the waste tire pyrolysis furnace with patent number CN120329972A, after heating is completed, a water inlet pipe is inserted into the furnace body and cooling water is guided into the furnace body to achieve water cooling and temperature reduction inside the furnace body. This accelerates the cooling process of the material inside the furnace body. Furthermore, by setting up a material turning component, the material inside the furnace body can be further turned, thereby achieving full contact between the material inside the furnace body and the cooling water, making the cooling process even faster.

[0004] However, in the process of feeding tires using existing technology, especially in the extremely cold environment of the north, the tires will become harder due to the low temperature. The tires are difficult to compress in the feeding equipment, which will occupy a large space in the feeding equipment and require multiple feedings. At the same time, at extremely cold temperatures, the tires need a longer pyrolysis time to complete the oil refining process in the pyrolysis furnace, which affects efficiency.

[0005] To address this, an electrically heated pyrolysis furnace with waste heat recovery function is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide an electrically heated pyrolysis furnace with waste heat recovery function to solve the problems raised in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an electrically heated pyrolysis furnace with waste heat recovery function, characterized in that: the electrically heated pyrolysis furnace includes a base, an electromagnetic heating box, a drive system, a furnace body, a spiral belt, a furnace door, a discharge pipe, an exhaust assembly, and a feeding assembly; the electromagnetic heating box is fixedly connected to the base, the drive system is fastened to the base and located on both sides of the electromagnetic heating box, the furnace body is rotatably connected to the drive system, the spiral belt is fixedly connected to the inner wall of the furnace body, the furnace door is rotatably connected to the furnace body, the discharge pipe is rotatably connected to the center position of the side of the furnace body, and the exhaust assembly is rotatably connected to the center position of the side of the furnace body. The feed pipes are connected, and the feeding assembly is located on one side of the furnace door on the furnace body. The feeding assembly is disconnected from the exhaust assembly when feeding, and is connected to the exhaust assembly after feeding. During the process of heating and pyrolyzing the tires in the furnace body, the feeding assembly can be filled with tire raw materials, and then the feeding assembly is connected to the exhaust assembly. The heat of the high-temperature flue gas can be used to preheat the tires in the feeding assembly. After the tires in the furnace body are pyrolyzed, the preheated tires can be directly sent into the furnace body. This can prevent the tires from being difficult to compress in extremely cold weather, thus occupying space and affecting the filling process, and effectively improve the tire pyrolysis efficiency.

[0008] Preferably, the exhaust assembly includes an exhaust pipe, a connecting pipe, a damping tank, and a transfer box; the exhaust pipe is fixedly connected to the discharge pipe, the damping tank is located next to the furnace body, the connecting pipe is fixedly connected to the damping tank, and the transfer box is fixedly connected to the end of the connecting pipe and the exhaust pipe. When the feeding assembly is not connected to the exhaust assembly, the flue gas in the furnace body will sequentially pass through the exhaust pipe, the transfer box, and the connecting pipe and finally enter the damping tank; during the tire pyrolysis process, the furnace body generates hot flue gas containing oil, which will enter the transfer box along the discharge pipe and the exhaust pipe, and then enter the damping tank along the connecting pipe. The particulate matter in the flue gas will be filtered by the damping tank, and the clean flue gas will enter the subsequent cooling water tank pipeline. After the flue gas is cooled, it will turn into oil and be stored.

[0009] Preferably, the adapter box further includes a connecting pipe, a support frame, a piston, an elastic element, a partition, and a connecting plate. Two sets of connecting pipes are fixedly connected to the adapter box, with each set aligned with the discharge pipe and the connecting pipe, respectively. The support frame is fixedly connected to the connecting pipes, the piston is slidably connected to the connecting pipes, the elastic element is fixedly connected between the piston and the support frame, and the partition is slidably connected to the adapter box. The partition is also fixedly connected to the pistons on both sides via the connecting plate, and the connecting plate is slidably connected to the support frame. When no external force pushes the piston, it is inside the connecting pipe. At this time, the flue gas can only enter the adapter box from the discharge pipe and then exit to the damping canister from the connecting pipe. When an external force pushes the piston towards the support frame, the piston will cause the partition to abut against the adapter box via the connecting plate, dividing the adapter box into two chambers. At this time, the flue gas from the discharge pipe can exit the adapter box through the connecting pipe on one side of the partition, and the gas outside the adapter box can also enter the adapter box and the connecting pipe through the connecting pipe on the other side of the partition.

[0010] Preferably, the discharge pipe and the connecting pipe are both made of metal, and a support plate is fixedly connected to the top of the electromagnetic heating box. The discharge pipe and the connecting pipe are fixedly connected to the support plate, and the connection points of the discharge pipe and the connecting pipe to the adapter box are symmetrically arranged on the adapter box.

[0011] Preferably, the feeding assembly includes a track, an electrically driven sliding frame, a hydraulic pusher, a storage box, a pusher plate, a feeding hopper, and a box door; the track is located on the left side of the furnace body, the electrically driven sliding frame is slidably connected to the track, the hydraulic pusher and the storage box are both fixedly connected to the electrically driven sliding frame, the hydraulic pusher is located on the left side of the storage box, the pusher plate is fixedly connected to the output end of the hydraulic pusher and slidably connected to the storage box, the feeding hopper is fixedly connected to the top of the storage box, and the box door is rotatably connected to the storage box; during feeding, the tire can be sent from the feeding hopper into the storage box, and then the hydraulic pusher is driven to push the pusher plate to push the tire towards the box door until the storage box is full of tires. When it is necessary to feed material into the furnace body, the electrically driven sliding frame can be driven to move towards the furnace body, and then the box door can be opened, and the pusher plate can be used to push the tire into the furnace body.

[0012] Preferably, a spiral tube is fixedly connected to the outside of the storage box, and pushers are fixedly connected to both ends of the spiral tube, with the two ends of the spiral tube being flush. During the tire pyrolysis process inside the furnace, the next batch of tires can be sent into the storage box first, and then the electric drive sliding frame is activated to move towards the furnace body, so that the pusher is inserted into the connecting pipe. At this time, the pusher will push the piston to move towards the support frame, and the partition will also move into the transfer box and abut against the transfer box, dividing it into two chambers. At this time, the flue gas from the exhaust pipe will be discharged from the chamber on one side of the partition along the gap between the support frame and the pusher into the spiral tube. After circulating through the spiral tube, it will enter the chamber on the other side of the partition in the transfer box from the end of the spiral tube, and then finally enter the damping tank along the connecting pipe, thereby achieving the effect of preheating the tires in the storage box with high-temperature flue gas.

[0013] In the existing technology, after the pyrolysis furnace is completed, the steel wires inside the tire need to be manually hooked out of the pyrolysis furnace. The operation is cumbersome, and the carbon black formed after the tire is pyrolyzed inside the furnace is difficult to remove from the side wall.

[0014] Preferably, the electrically heated pyrolysis furnace further includes a cleaning component, which is movably installed with the pusher plate. The cleaning component rotates with the furnace body and is driven by the spiral belt to push the steel wires inside the furnace body to the furnace door. After the tire pyrolysis is completed, the cleaning component can be installed with the feeding component. The feeding component sends the cleaning component into the furnace body to abut against the spiral belt. Then, the drive system is started to drive the furnace body to rotate in the opposite direction. The cleaning component can then gradually push the steel wires that have peeled off after the tire pyrolysis to the furnace door, making it easier for workers to collect the steel wires. At the same time, the cleaning component can also scrape off the carbon black adhering to the inner wall of the furnace body and the spiral belt.

[0015] Preferably, the cleaning assembly includes a sliding groove, a rectangular sleeve, a rectangular rod, a rotating shaft, bolts, a socket, a crossbar, a rotating wheel, a guide plate, an extension rod, a vertical rod, a scraper, and a dust scraper; the sliding groove is formed on the push plate, the rectangular sleeve and the rectangular rod are slidably connected to the sliding groove, the rotating shaft is fixedly connected to the rectangular rod, the rectangular rod is rotatably connected to the rectangular sleeve via the rotating shaft, the bolt is threaded to the top of the rectangular sleeve, the socket is formed on the side wall of the rectangular rod, the crossbar is fixedly connected to the bottom end of the rectangular rod, the rotating wheel is fixedly connected to the bottom of the crossbar, the rotating wheel is inclined and the inclination angle is in contact with the spiral belt, the guide plate is fixedly connected below the rotating wheel, the top of the guide plate extends to the edge of the groove of the rotating wheel, the extension rod is fixedly connected to the crossbar, the vertical rod is fixedly connected to the extension rod, and the scraper is fixedly connected to the bottom of the vertical rod. The scraper is slidably connected to the scraper. After the tires inside the furnace have pyrolyzed, the furnace door can be opened. Then, the pusher plate is moved to the right side of the storage box and the box door is opened. The rectangular sleeve is inserted into the sliding groove, and then the rectangular rod is rotated 180 degrees so that the scraper faces upward. The electric-driven sliding frame pushes the rectangular rod into the furnace. When the scraper moves to the innermost part of the furnace, the rectangular rod can be rotated 180 degrees in the opposite direction. Then, the bolts are tightened to fix the rectangular rod and the rectangular sleeve. At this time, the wheel will be guided by the guide plate, and the wheel groove on the wheel will engage with the spiral belt. At this time, the furnace can be rotated in the opposite direction. The spiral belt will drive the cleaning assembly to move from the right side of the furnace to the left side through the wheel. During the process, the rectangular rod will slide to the left along the sliding groove. Then, under the action of the upright and the scraper, the steel wire inside the furnace will be pushed to the furnace door along the rotation of the spiral belt, making it easy for workers to remove it.

[0016] Preferably, the scraping component includes a telescopic plate, a fixed plate, a sliding groove, a second elastic element, an insert plate, and an electric push rod. The telescopic plate is slidably connected to both sides of the scraper, and the bottom surface of the telescopic plate is on the same straight line as the bottom surface of the scraper. The fixed plate is fixedly connected to the scraper and slidably connected to the sliding groove. The second elastic element is fixedly connected between the two sets of fixed plates. The insert plate is slidably connected to the middle of the scraper, and the bottom sides of the insert plate are inclined. The electric push rod is fixedly connected to a rectangular rod, and the output end of the electric push rod is fixedly connected to the insert plate. When the rectangular rod drives the scraper to move to the innermost part of the furnace body, and the wheel groove on the rotating wheel is engaged with the spiral belt, the electric push rod can be activated to push the insert plate downward, causing the insert plates on both sides of the scraper to abut against the spiral belt on both sides. Then, during the rotation of the spiral belt, the scraper and the insert plate work together to scrape off the carbon black on the inner wall of the furnace body and the spiral belt, preventing excessive accumulation that would affect thermal conductivity.

[0017] Preferably, a telescopic sleeve is also fixedly connected to the inner side of the fixed plate, and the telescopic sleeve is sleeved on the outer side of the elastic element two; the telescopic sleeve can gradually extend as the insert plate opens, which can prevent the steel wire from getting tangled with the elastic element two during the scraper cleaning process.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. In extremely cold weather, during the tire pyrolysis process inside the furnace, the next batch of tires can be first sent into the storage box. Then, the electric drive sliding frame is activated to move towards the furnace body, causing the pusher frame to insert into the connecting pipe. At this time, the pusher frame will push the piston to move towards the support frame, and the partition plate will also move into the transfer box and abut against the transfer box, dividing it into two chambers. At this time, the flue gas from the exhaust pipe will be discharged from the chamber on one side of the partition plate through the gap between the support frame and the pusher frame into the spiral tube. Finally, after circulating through the spiral tube, it will enter the chamber on the other side of the partition plate inside the transfer box from the end of the spiral tube, and then finally enter the damping tank through the connecting pipe. This achieves the effect of preheating the tires in the storage box by the high-temperature flue gas entering the spiral tube, which can soften the tire material in extremely cold environments and make it easier to feed.

[0020] 2. When it is necessary to remove steel wire from the furnace body, the furnace door can be opened, the rectangular sleeve can be inserted into the sliding groove, and then the rectangular rod can be rotated 180 degrees so that the scraper faces upward. The electric drive sliding frame can be used to push the rectangular rod into the furnace body. When the scraper moves to the innermost part of the furnace body, the rectangular rod can be rotated 180 degrees in the opposite direction. Then the bolts can be tightened to fix the rectangular rod and the rectangular sleeve. At this time, the wheel will be guided by the guide plate, and the wheel groove on the wheel will engage with the spiral belt. At this time, the furnace body can be rotated in the opposite direction. The spiral belt will drive the cleaning assembly to move from the right side of the furnace body to the left side through the wheel. During the process, the rectangular rod will slide to the left along the sliding groove. Then, under the action of the upright and the scraper, the steel wire in the furnace body will be pushed to the furnace door along the rotation of the spiral belt, making it easy for workers to remove it.

[0021] 3. In this invention, when the rectangular rod drives the scraper to move to the innermost part of the furnace body and the wheel groove on the rotary wheel is engaged with the spiral belt, the electric push rod can be activated to push the insert plate downward. The inclined surfaces on both sides of the bottom of the insert plate will push the telescopic plate to overcome the elastic force of the elastic element and gradually open to both sides of the scraper, so that the insert plates on both sides of the scraper abut against the spiral belt on both sides. Then, during the rotation of the spiral belt, the carbon black on the inner wall of the furnace body and the spiral belt is scraped off with the cooperation of the scraper and the insert plate, so as to prevent the accumulation of too thick carbon black from affecting the thermal conductivity. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the overall appearance of the present invention;

[0023] Figure 2 This is a schematic diagram of the exhaust assembly structure of the present invention;

[0024] Figure 3 This is a cross-sectional view of the adapter box of the present invention;

[0025] Figure 4 This is a schematic diagram of the feeding assembly structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the overall appearance and structure of the cleaning component of the present invention;

[0027] Figure 6 This is an enlarged structural diagram of the cleaning component of the present invention;

[0028] Figure 7 This is a schematic diagram of the external structure of the scraper component of the present invention;

[0029] Figure 8 This is a cross-sectional view of the scraper part of the present invention;

[0030] Figure 9 This is a diagram showing the working state of the scraper of the present invention.

[0031] In the diagram: 1. Base; 2. Electromagnetic heating box; 3. Drive system; 4. Furnace body; 41. Spiral belt; 42. Furnace door; 43. Discharge pipe; 5. Exhaust assembly; 51. Discharge pipe; 52. Connecting pipe; 53. Damping tank; 54. Adapter box; 541. Connecting pipe; 542. Support frame; 543. Piston; 544. Elastic element one; 545. Partition plate; 546. Connecting plate; 6. Feeding assembly; 61. Track; 62. Electrically driven sliding frame; 63. Hydraulic push rod; 64. Storage box; 641. Spiral tube; 642. Push rod 65. Support frame; 66. Push plate; 67. Feed hopper; 68. Box door; 79. Cleaning assembly; 70. Sliding groove; 71. Rectangular sleeve; 72. Rectangular rod; 73. Rotating shaft; 74. Bolt; 75. Insertion hole; 76. Crossbar; 77. Rotary wheel; 78. Guide plate; 79. Extension rod; 70. Upright pole; 712. Scraper; 713. Scraper; 714. Telescopic plate; 715. Fixing plate; 716. Sliding groove; 717. Elastic component II; 718. Insert plate; 719. Electric push rod; 710. Telescopic sleeve. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1 to 9 The present invention provides an electrically heated pyrolysis furnace with waste heat recovery function, the technical solution of which is as follows:

[0034] Reference Figure 1An electrically heated pyrolysis furnace with waste heat recovery function is disclosed. The furnace includes a base 1, an electromagnetic heating box 2, a drive system 3, a furnace body 4, a spiral belt 41, a furnace door 42, a discharge pipe 43, an exhaust assembly 5, and a feeding assembly 6. The electromagnetic heating box 2 is fixedly connected to the base 1. The drive system 3 is fastened to the base 1 and located on both sides of the electromagnetic heating box 2. The furnace body 4 is rotatably connected to the drive system 3. The spiral belt 41 is fixedly connected to the inner wall of the furnace body 4. The furnace door 42 is rotatably connected to the furnace body 4. The discharge pipe 43 is rotatably connected to the center of the side of the furnace body 4. The exhaust assembly 5 is connected to the discharge pipe 43. The feeding assembly 6 is located on one side of the furnace door 42 on the furnace body 4. The feeding assembly 6 is disconnected from the exhaust assembly 5 during feeding and is reconnected to the exhaust assembly 5 after feeding. During use, waste tires are discharged by the feeding assembly. 6. The material is fed into the furnace body 4, and then the drive system 3 and electromagnetic heating box 2 are started. The furnace body 4 will rotate and be heated by the electromagnetic heating box 2 at high temperature. When the electromagnetic heating box 2 reaches a certain high temperature, oily gas will be generated. The gas will enter the exhaust component 5 through the discharge pipe 43. After subsequent cooling, it will turn into oil and be stored. The carbon black in the furnace body 4 after pyrolysis can be discharged through the auger connected to the discharge pipe 43. During the process of heating and pyrolyzing the tire in the furnace body 4, the feeding component 6 can be operated to fill the tire raw material. Then the feeding component 6 is connected to the exhaust component 5. The heat of the high temperature flue gas can be used to preheat the tire in the feeding component 6. After the tire in the furnace body 4 is pyrolyzed, the preheated tire can be directly fed into the furnace body 4. This can prevent the tire from being difficult to compress in extremely cold weather, thus occupying space and affecting the filling process, and effectively improving the tire pyrolysis efficiency.

[0035] Reference Figure 2 The exhaust assembly 5 includes an exhaust pipe 51, a connecting pipe 52, a damping tank 53, and a transfer box 54. The exhaust pipe 51 is fixedly connected to the discharge pipe 43. The damping tank 53 is located next to the furnace body 4. The connecting pipe 52 is fixedly connected to the damping tank 53. The transfer box 54 is fixedly connected to the end of the connecting pipe 52 and the exhaust pipe 51. When the feeding assembly 6 is not connected to the exhaust assembly 5, the flue gas in the furnace body 4 will pass through the exhaust pipe 51, the transfer box 54, and the connecting pipe 52 in sequence and finally enter the damping tank 53. During the tire pyrolysis process, the furnace body 4 generates hot flue gas containing oil, which will enter the transfer box 54 along the discharge pipe 43 and the discharge pipe 51, and then enter the damping tank 53 along the connecting pipe 52. The particulate matter in the flue gas will be filtered by the damping tank 53. The clean flue gas will enter the subsequent cooling water tank pipeline. After the flue gas is cooled, it will turn into oil and be stored.

[0036] Reference Figure 3The adapter box 54 also includes a connecting pipe 541, a support frame 542, a piston 543, an elastic element 544, a partition plate 545, and a connecting plate 546. Two sets of connecting pipes 541 are fixedly connected to the adapter box 54. The two sets of connecting pipes 541 are aligned with the discharge pipe 51 and the connecting pipe 52, respectively. The support frame 542 is fixedly connected to the connecting pipe 541. The piston 543 is slidably connected to the connecting pipe 541. The elastic element 544 is fixedly connected between the piston 543 and the support frame 542. The partition plate 545 is slidably connected to the adapter box 54, and is fixedly connected to the pistons 543 on both sides via the connecting plate 546. The connecting plate 546 is also fixedly connected to the support frame 543. The support frame 542 is slidably connected. When no external force pushes the piston 543, the piston 543 will be inside the connecting pipe 541. At this time, the flue gas can only enter the transfer box 54 from the discharge pipe 51 and then be discharged to the damping tank 53 from the connecting pipe 52. When an external force pushes the piston 543 to move towards the support frame 542, the piston 543 will drive the partition 545 to abut against the transfer box 54 through the connecting plate 546, dividing the transfer box 54 into two chambers. At this time, the flue gas from the discharge pipe 51 can be discharged from the transfer box 54 along the connecting pipe 541 on one side of the partition 545. The gas outside the transfer box 54 can also enter the transfer box 54 and the connecting pipe 52 along the connecting pipe 541 on the other side of the partition 545.

[0037] Reference Figure 3 Both the discharge pipe 51 and the connecting pipe 52 are made of metal, and a support plate is fixedly connected to the top of the electromagnetic heating box 2. The discharge pipe 51 and the connecting pipe 52 are fixedly connected to the support plate. The connection points of the discharge pipe 51 and the connecting pipe 52 with the adapter box 54 are symmetrically arranged on the adapter box 54.

[0038] Reference Figure 4 The feeding assembly 6 includes a track 61, an electrically driven sliding frame 62, a hydraulic pusher 63, a storage box 64, a pusher plate 65, a feeding hopper 66, and a door 67. The track 61 is located on the left side of the furnace body 4. The electrically driven sliding frame 62 is slidably connected to the track 61. The hydraulic pusher 63 and the storage box 64 are both fixedly connected to the electrically driven sliding frame 62. The hydraulic pusher 63 is located on the left side of the storage box 64. The pusher plate 65 is fixedly connected to the output end of the hydraulic pusher 63, and the pusher plate 65 slides with the storage box 64. The feed hopper 66 is fixedly connected to the top of the storage box 64, and the box door 67 is rotatably connected to the storage box 64. When feeding, the tire can be sent from the feed hopper 66 into the storage box 64, and then the hydraulic push rod 63 is driven to push the pusher plate 65 to push the tire towards the box door 67 until the storage box 64 is full of tires. When it is necessary to feed material into the furnace body 4, the electric drive sliding frame 62 can be driven to move towards the furnace body 4, and then the box door 67 can be opened, and the pusher plate 65 can be used to push the tire into the furnace body 4.

[0039] Reference Figure 4A spiral tube 641 is fixedly connected to the outside of the storage box 64. Pushing frames 642 are fixedly connected to both ends of the spiral tube 641, and the two ends of the spiral tube 641 are flush. During the tire pyrolysis process in the furnace body 4, the next batch of tires can be first fed into the storage box 64. Then, the electrically driven sliding frame 62 is activated to move towards the furnace body 4, causing the pushing frame 642 to insert into the connecting pipe 541. At this time, the pushing frame 642 will push the piston 543 towards the support frame 542, and simultaneously the partition plate 545 will also move into the adapter box 54. The gas is brought into contact with the support frame 542 and the push frame 642, and then the flue gas from the exhaust pipe 51 will be discharged from the chamber on one side of the partition 545 into the spiral tube 641 through the gap between the support frame 542 and the push frame 642. After circulating through the spiral tube 641, it will enter the chamber on the other side of the partition 545 in the transfer box 54 from the end of the spiral tube 641, and then enter the damping tank 53 through the connecting pipe 52. This achieves the effect of preheating the tires in the storage box 64 with high-temperature flue gas, which can soften the tires in extremely cold environments and make them easier to feed.

[0040] Reference Figures 4 to 6 The electrically heated pyrolysis furnace also includes a cleaning component 7, which is movably installed with the pusher plate 65. The cleaning component 7 rotates with the furnace body 4 and is driven by the spiral belt 41 to push the steel wires inside the furnace body 4 to the furnace door 42. After the tire pyrolysis is completed, the cleaning component 7 can be installed with the feeding component 6. The feeding component 6 is used to send the cleaning component 7 into the furnace body 4 to abut against the spiral belt 41. Then, the drive system 3 is started to drive the furnace body 4 to rotate in the opposite direction. The cleaning component 7 can then gradually push the steel wires that have peeled off after the tire pyrolysis inside the furnace body 4 to the furnace door 42, making it easier for workers to collect the steel wires. At the same time, the cleaning component 7 can also scrape off the carbon black attached to the inner wall of the furnace body 4 and the spiral belt 41.

[0041] Reference Figures 4 to 6The cleaning component 7 includes a sliding groove 71, a rectangular sleeve 72, a rectangular rod 73, a rotating shaft 74, a bolt 75, a socket 76, a crossbar 77, a rotating wheel 78, a guide plate 79, an extension rod 710, a vertical rod 711, a scraper 712, and a dust scraper 713. The sliding groove 71 is formed on the pusher plate 65. The rectangular sleeve 72 and the rectangular rod 73 are slidably connected to the sliding groove 71. The rotating shaft 74 is fixedly connected to the rectangular rod 73. The rectangular rod 73 is rotatably connected to the rectangular sleeve 72 through the rotating shaft 74. The bolt 75 is threadedly connected to the rectangular sleeve 72. The top of sleeve 72 has a socket 76 on the side wall of rectangular rod 73. A crossbar 77 is fixedly connected to the bottom end of rectangular rod 73. A rotating wheel 78 is fixedly connected to the bottom of crossbar 77, and the rotating wheel 78 is inclined with its angle matching the spiral belt 41. A guide plate 79 is fixedly connected below the rotating wheel 78, with its top extending to the edge of the wheel groove of the rotating wheel 78. An extension rod 710 is fixedly connected to crossbar 77, and a vertical rod 711 is fixedly connected to the extension rod 710. A scraper 712 is fixedly connected to the bottom of vertical rod 711. (The last sentence appears to be a separate, unrelated section about a dust scraper.) 713 is slidably connected to scraper 712; after the tire pyrolysis is completed inside the furnace body 4, the furnace door 42 can be opened, and then the pusher plate 65 can be moved to the right side of the storage box 64 and the box door 67 can be opened. The rectangular sleeve 72 can be inserted into the sliding groove 71, and then the rectangular rod 73 can be rotated 180 degrees so that the scraper 712 faces upward. The electric drive sliding frame 62 can be used to push the rectangular rod 73 into the furnace body 4 as a whole. When the scraper 712 moves to the innermost part of the furnace body 4, the rectangular rod 73 can be rotated 180 degrees in the opposite direction, and then the bolt 75 can be tightened to place the rectangular rod 73 into the furnace body 4. The rod 73 and the rectangular sleeve 72 are fixed together. At this time, the rotating wheel 78 will be guided by the guide plate 79, and the groove on the rotating wheel 78 will engage with the spiral belt 41. Then the furnace body 4 can be rotated in the opposite direction. The spiral belt 41 will drive the cleaning assembly 7 to move from the right side to the left side of the furnace body 4 through the rotating wheel 78. During the process, the rectangular rod 73 will slide to the left along the sliding groove 71. Then, under the action of the upright rod 711 and the scraper 712, the steel wire in the furnace body 4 will be pushed to the furnace door 42 along the rotation of the spiral belt 41, making it easy for the workers to take it out.

[0042] Reference Figures 7 to 9The scraper component 713 includes a telescopic plate 7131, a fixed plate 7132, a slide groove 7133, an elastic element 7134, an insert plate 7135, and an electric actuator 7136. The telescopic plate 7131 is slidably connected to both sides of the scraper 712, and the bottom surface of the telescopic plate 7131 is on the same straight line as the bottom surface of the scraper 712. The fixed plate 7132 is fixedly connected to the scraper 712 and slidably connected to the slide groove 7133. The elastic element 7134 is fixedly connected between the two sets of fixed plates 7132. The insert plate 7135 is slidably connected to the middle of the scraper 712, and the bottom sides of the insert plate 7135 are inclined. The electric actuator 7136 is fixedly connected to the rectangular rod 73. The output end is fixedly connected to the insert plate 7135. When the rectangular rod 73 drives the scraper 712 to move to the innermost part of the furnace body 4, and the groove on the wheel 78 is engaged with the spiral belt 41, the electric push rod 7136 can be activated to push the insert plate 7135 downward. The inclined surfaces on both sides of the bottom of the insert plate 7135 will push the telescopic plate 7131 to overcome the elastic force of the elastic element 7134 and gradually open to both sides of the scraper 712, so that the insert plates 7135 on both sides of the scraper 712 abut against the spiral belts 41 on both sides. Then, during the rotation of the spiral belt 41, the scraper 712 and the insert plate 7135 work together to scrape off the carbon black on the inner wall of the furnace body 4 and the spiral belt 41, preventing the accumulation from being too thick and affecting the thermal conductivity.

[0043] Reference Figure 7 The inner side of the fixed plate 7132 is also fixedly connected to a telescopic sleeve 7137, which is sleeved on the outer side of the elastic element 7134. The telescopic sleeve 7137 can gradually extend as the insert plate 7135 opens, which can prevent the steel wire from getting tangled with the elastic element 7134 during the cleaning process of the scraper 712.

[0044] Working principle: During use, waste tires are fed into the furnace body 4 by the feeding component 6. Then, the drive system 3 and the electromagnetic heating box 2 are started, and the furnace body 4 will rotate and be heated by the high temperature of the electromagnetic heating box 2. When the electromagnetic heating box 2 reaches a certain high temperature, oily gas will be generated. The gas will pass through the discharge pipe 43, the discharge pipe 51, the adapter box 54 and the connecting pipe 52 into the damping tank 53 for filtration. The clean flue gas will enter the subsequent cooling water tank pipeline. After the flue gas is cooled, it will turn into oil and be stored. The carbon black in the furnace body 4 after pyrolysis can be discharged through the auger connected to the discharge pipe 43.

[0045] In extremely cold weather, during the tire pyrolysis process in furnace body 4, the next batch of tires can be fed from the feed hopper 66 into the storage box 64. Then, the hydraulic push rod 63 is driven to push the pusher plate 65 to push the tires towards the box door 67. Then, the electric drive sliding frame 62 is activated to move towards furnace body 4, so that the pusher frame 642 is inserted into the connecting pipe 541. At this time, the pusher frame 642 will push the piston 543 to move towards the support frame 542. At the same time, the partition plate 545 will also move into the transfer box 54 and abut against the transfer box 54, dividing it into two In this chamber, the flue gas from the exhaust pipe 51 will be discharged from the chamber on one side of the partition 545 through the gap between the support frame 542 and the pusher frame 642 into the spiral pipe 641. After circulating through the spiral pipe 641, it will enter the chamber on the other side of the partition 545 in the transfer box 54 from the end of the spiral pipe 641, and then enter the damping tank 53 through the connecting pipe 52. This achieves the effect of preheating the tires in the storage box 64 with high-temperature flue gas, which can soften the tires in extremely cold environments and make them easier to feed.

[0046] After the tires inside furnace body 4 have pyrolyzed and the steel wire needs to be discharged, furnace door 42 can be opened. Then, pusher plate 65 can be moved to the right side of storage box 64 and box door 67 can be opened. Rectangular sleeve 72 can be inserted into sliding groove 71. Then, rectangular rod 73 can be rotated 180 degrees so that scraper 712 faces upward. The electric drive sliding frame 62 can be used to push rectangular rod 73 into furnace body 4 as a whole. When scraper 712 moves to the innermost part of furnace body 4, rectangular rod 73 can be rotated 180 degrees in the opposite direction. Then, bolt 75 can be tightened to secure rectangular rod 73. The rectangular sleeve 72 is fixed in place. At this time, the rotating wheel 78 will be guided by the guide plate 79, and the groove on the rotating wheel 78 will engage with the spiral belt 41. At this time, the furnace body 4 can be rotated in the opposite direction. The spiral belt 41 will drive the cleaning assembly 7 to move from the right side to the left side of the furnace body 4 through the rotating wheel 78. During the process, the rectangular rod 73 will slide to the left along the sliding groove 71. Then, under the action of the upright rod 711 and the scraper 712, the steel wire in the furnace body 4 will be pushed to the furnace door 42 along the rotation of the spiral belt 41, making it easy for workers to take it out.

[0047] Furthermore, when the rectangular rod 73 drives the scraper 712 to move to the innermost part of the furnace body 4, and the groove on the rotary wheel 78 is engaged with the spiral belt 41, the electric push rod 7136 can be activated to push the insert plate 7135 downward. The inclined surfaces on both sides of the bottom of the insert plate 7135 will push the telescopic plate 7131 to overcome the elastic force of the elastic element 7134 and gradually open it to both sides of the scraper 712, causing the insert plates 7135 on both sides of the scraper 712 to abut against the spiral belts 41 on both sides. Then, during the rotation of the spiral belt 41, the scraper 712 and the insert plate 7135 work together to scrape off the carbon black on the inner wall of the furnace body 4 and the spiral belt 41, preventing excessive accumulation that would affect the thermal conductivity.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An electrically heated cracking furnace with waste heat recovery function, characterized by: The electric heating pyrolysis furnace includes a base (1), an electromagnetic heating box (2), a drive system (3), a furnace body (4), a spiral belt (41), a furnace door (42), a discharge pipe (43), an exhaust assembly (5), and a feeding assembly (6). The electromagnetic heating box (2) is fixedly connected to the base (1), the drive system (3) is fastened to the base (1) and located on both sides of the electromagnetic heating box (2), the furnace body (4) is rotatably connected to the drive system (3), the spiral belt (41) is fixedly connected to the inner wall of the furnace body (4), the furnace door (42) is rotatably connected to the furnace body (4), the discharge pipe (43) is rotatably connected to the center of the side of the furnace body (4), the exhaust assembly (5) is connected to the discharge pipe (43), and the feeding assembly (6) is located on one side of the furnace door (42) on the furnace body (4). When the feeding assembly (6) is feeding, it is disconnected from the exhaust assembly (5). After the feeding assembly (6) is finished feeding, it is plugged into the exhaust assembly (5). The exhaust assembly (5) includes an exhaust pipe (51), a connecting pipe (52), a damping tank (53), and a junction box (54); the exhaust pipe (51) is fixedly connected to the discharge pipe (43), the damping tank (53) is located next to the furnace body (4), the connecting pipe (52) is fixedly connected to the damping tank (53), and the junction box (54) is fixedly connected to the end of the connecting pipe (52) and the exhaust pipe (51). When the feeding assembly (6) is not connected to the exhaust assembly (5), the flue gas in the furnace body (4) will pass through the exhaust pipe (51), the junction box (54), and the connecting pipe (52) in sequence and finally enter the damping tank (53). The adapter box (54) is also equipped with a connecting pipe (541), a support frame (542), a piston (543), an elastic element (544), a partition plate (545), and a connecting plate (546). Two sets of connecting pipes (541) are provided and are fixedly connected to and communicate with the adapter box (54). The two sets of connecting pipes (541) are aligned with the discharge pipe (51) and the connecting pipe (52) respectively. The support frame (542) is fixedly connected to the connecting pipes (541), and the piston (543) is aligned with... The connecting pipe (541) is slidably connected, the elastic element (544) is fixedly connected between the piston (543) and the support frame (542), the partition (545) is slidably connected to the adapter box (54), and the partition (545) is fixedly connected to the pistons (543) on both sides through the connecting plate (546), and the connecting plate (546) is slidably connected to the support frame (542). When the partition (545) and the adapter box (54) are fully inserted, the adapter box (54) will be divided into two chambers.

2. The electrically heated pyrolysis furnace with waste heat recovery function according to claim 1, characterized in that: The discharge pipe (51) and the connecting pipe (52) are both made of metal, and a support plate is fixedly connected to the top of the electromagnetic heating box (2). The discharge pipe (51) and the connecting pipe (52) are fixedly connected to the support plate.

3. The electrically heated cracking furnace with waste heat recovery according to claim 2, characterized in that: The feeding assembly (6) includes a track (61), an electric drive sliding frame (62), a hydraulic push rod (63), a storage box (64), a pusher plate (65), a feeding hopper (66), and a box door (67). The track (61) is located on the side of the furnace door (42) on the furnace body (4). The electric drive sliding frame (62) is slidably connected to the track (61). The hydraulic push rod (63) and the storage box (64) are both fixedly connected to the electric drive sliding frame (62). The hydraulic push rod (63) is located on the left side of the storage box (64). The pusher plate (65) is fixedly connected to the output end of the hydraulic push rod (63), and the pusher plate (65) is slidably connected to the storage box (64). The feeding hopper (66) is fixedly connected to the top of the storage box (64). The box door (67) is rotatably connected to the storage box (64).

4. The electrically heated cracking furnace with waste heat recovery according to claim 3, characterized in that: The storage box (64) is fixedly connected to a spiral tube (641) on the outside. Both ends of the spiral tube (641) are fixedly connected to pushers (642), and the two ends of the spiral tube (641) are flush. When the pushers (642) on the end of the spiral tube (641) are inserted into the two sets of connecting pipes (541), the adapter box (54) will be divided into two chambers. The flue gas will pass through the discharge pipe (51), adapter box (54), spiral tube (641), adapter box (54), connecting pipe (52) in sequence and finally enter the damping tank (53).

5. The electrically heated cracking furnace with waste heat recovery according to claim 4, characterized in that: The electric heating pyrolysis furnace also includes a cleaning component (7), which is movably installed with the pusher plate (65). The cleaning component (7) is driven by the spiral belt (41) as the furnace body (4) rotates to push the steel wire inside the furnace body (4) to the furnace door (42).

6. The electrically heated cracking furnace with waste heat recovery according to claim 5, characterized in that: The cleaning assembly (7) includes a sliding groove (71), a rectangular sleeve (72), a rectangular rod (73), a rotating shaft (74), a bolt (75), a socket (76), a crossbar (77), a rotating wheel (78), a guide plate (79), an extension rod (710), a vertical rod (711), a scraper (712), and a dust scraper (713). The sliding groove (71) is formed on the pusher plate (65). The rectangular sleeve (72) and the rectangular rod (73) are slidably connected to the sliding groove (71). The rotating shaft (74) is fixedly connected to the rectangular rod (73). The rectangular rod (73) is rotatably connected to the rectangular sleeve (72) through the rotating shaft (74). The bolt (75) is threaded onto the top of the rectangular sleeve (72). The insertion hole (76) is opened on the side wall of the rectangular rod (73). The crossbar (77) is fixedly connected to the bottom end of the rectangular rod (73). The rotating wheel (78) is fixedly connected to the bottom of the crossbar (77). The rotating wheel (78) is inclined and the inclination angle is close to the spiral belt (41). The guide plate (79) is fixedly connected below the rotating wheel (78). The top of the guide plate (79) extends to the edge of the groove of the rotating wheel (78). The extension rod (710) is fixedly connected to the crossbar (77). The upright rod (711) is fixedly connected to the extension rod (710). The scraper (712) is fixedly connected to the bottom of the upright rod (711). The scraper (713) is slidably connected to the scraper (712).

7. The electrically heated cracking furnace with waste heat recovery according to claim 6, characterized in that: The scraper component (713) includes a telescopic plate (7131), a fixed plate (7132), a slide groove (7133), an elastic element (7134), an insert plate (7135), and an electric push rod (7136); the telescopic plate (7131) is slidably connected to both sides of the scraper (712), the bottom surface of the telescopic plate (7131) is on the same straight line as the bottom surface of the scraper (712), and the fixed plate (7132) is fixedly connected to the scraper (712). The fixed plate (7132) is slidably connected to the slide groove (7133), the elastic element (7134) is fixedly connected between the two sets of fixed plates (7132), the insert plate (7135) is slidably connected to the middle of the scraper (712), the bottom sides of the insert plate (7135) are inclined, the electric push rod (7136) is fixedly connected to the rectangular rod (73), and the output end of the electric push rod (7136) is fixedly connected to the insert plate (7135).

8. An electrically heated pyrolysis furnace with waste heat recovery function according to claim 7, characterized in that: The inner side of the fixed plate (7132) is also fixedly connected to a telescopic sleeve (7137), which is sleeved on the outer side of the elastic element (7134).

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