Drying carbonization furnace capable of promoting water vapor emission

Abstract

The invention relates to the technical field of sludge high-temperature carbonization treatment, in particular to a drying carbonization furnace capable of promoting water vapor emission, which comprises a furnace body, a plurality of conveying assemblies are arranged in the furnace body, and every two adjacent conveying assemblies are connected through a discharging assembly; the discharging assembly comprises an inner pipe and a shell arranged outside the inner pipe in a sleeving mode, a through hole is formed in the shell, and the shell is provided with a protruding part and a concave part. A rotating plate assembly and a scraping plate assembly are arranged between the shell and the inner pipe; the rotating plate assembly comprises a transmission structure and a telescopic rotating plate, the transmission structure can drive the telescopic rotating plate to rotate around the inner pipe, and the telescopic rotating plate can stretch out and draw back along with the change of the shape of the shell when rotating; the scraping plate assembly comprises a connecting block and a scraping plate, the connecting block is fixedly connected with the scraping plate, and the scraping plate is arranged in the inner pipe. The problems that when the high-temperature conversion furnace treats waste, the waste is prone to being attached to the discharging opening of the conveying assembly to be agglomerated, and water vapor released in the waste pyrolysis process is blocked when being discharged into the furnace through a spiral conveying system are solved.

Description

Technical Field

[0001] This invention relates to the field of high-temperature carbonization treatment technology for sludge, and specifically to a drying carbonization furnace that promotes the emission of water vapor. Background Technology

[0002] A carbonization furnace is a device for treating organic waste. By releasing the moisture from waste such as sludge, straw, and wood chips under high temperature conditions, it achieves resource recovery and reduces environmental pollution. Therefore, high-temperature pyrolysis furnaces have important application value in the field of organic waste treatment and are an effective way to achieve waste reduction, resource recovery, and harmless treatment.

[0003] The patent with publication number CN219314797U proposes a system in which multiple conveying components are installed inside a furnace, and the discharge port of one conveying component is connected to the inlet of the next conveying component to form a spiral conveying system. This allows waste to pass through multiple conveying components during transportation. A heating device is installed at the bottom of the furnace to heat the inside of the furnace, thereby heating the waste transported in the spiral conveying system. This allows the waste to be fully pyrolyzed during transportation. Vent holes are provided on the conveying components so that the water vapor released during the pyrolysis of the waste can be discharged into the furnace.

[0004] However, before complete pyrolysis, waste typically exhibits a certain degree of stickiness, easily adhering to the inner wall of the discharge port of the conveying assembly. Over long-term operation, the waste may even clump together at the discharge port, affecting the transfer efficiency of the waste within the screw conveyor system. Furthermore, heating the furnace by installing a heating device at the bottom results in a higher temperature inside the furnace compared to the screw conveyor system, especially at the bottom. The characteristic of gas flowing from high-temperature to low-temperature zones hinders the discharge of water vapor released during waste pyrolysis from the conveying assembly into the furnace, thus impacting the efficiency of waste pyrolysis. Summary of the Invention

[0005] This invention addresses the problems in existing high-temperature pyrolysis furnaces where waste tends to clump together at the discharge port of the conveying assembly, and the water vapor released during waste pyrolysis is obstructed from entering the furnace through the conveying assembly. The invention provides a drying carbonization furnace that promotes water vapor discharge, preventing waste from clumping at the discharge port of the conveying assembly and ensuring smooth waste transport. Simultaneously, it facilitates the discharge of water vapor generated during waste pyrolysis into the furnace, thereby improving the efficiency of high-temperature waste pyrolysis.

[0006] To solve the above problems, the technical solution of the present invention is: including a furnace body, a preheating furnace located at the bottom of the furnace body and a reburning furnace located at the top of the furnace body, wherein the furnace body is provided with multiple conveying components, the top of the conveying components is provided with an air outlet, one end of the conveying components is provided with a drive mechanism and a feed inlet, the other end of the conveying components is provided with a discharge outlet, and two adjacent conveying components are connected through a discharge component. The discharge assembly includes an inner tube and an outer shell fitted over the inner tube. The outer shell has several through holes at both ends. The outer shell has at least one vertically corresponding protrusion and at least one vertically corresponding recess at both ends. The area between the inner tube and the outer shell is divided into an expansion zone and a compression zone as the shape of the outer shell changes. The through holes in the expansion zone and the compression zone are respectively connected to the air outlet and the interior of the furnace body. A rotating plate assembly and a scraper assembly are provided between the outer shell and the inner tube; The rotating plate assembly includes a transmission structure and at least one telescopic rotating plate. The telescopic rotating plate is located between the outer shell and the inner tube, dividing the space between the outer shell and the inner tube into at least two non-communicating areas. Both ends of the telescopic rotating plate are telescopic. The transmission structure is located below the inner tube and outside the outer shell, and is used to drive the telescopic rotating plate to rotate around the inner tube, so that the telescopic rotating plate can extend and retract as the shape of the outer shell changes. The scraper assembly includes a connecting block and a scraper. One end of the connecting block is fixedly connected to the scraper located inside the inner tube, and the other end of the connecting block is located between the outer shell and the inner tube, so that when the telescopic rotating plate rotates, it can drive the connecting block and the scraper to rotate around the inner tube.

[0007] Using the above scheme, the protrusions and recesses distributed on the outer shell divide the area between the inner tube and the outer shell into an expansion zone and a compression zone. When the telescopic rotating plate rotates around the inner tube to the expansion zone under the drive of the transmission structure, the local pressure in the expansion zone decreases instantaneously due to the sudden increase in volume. This draws the water vapor discharged from the waste into the expansion zone through the conveying component. As the telescopic rotating plate rotates, the water vapor discharged from the waste enters the compression zone from the expansion zone. Due to the sudden decrease in local volume in the compression zone, the local pressure in the compression zone increases. This discharges the water vapor discharged from the waste into the furnace body from the compression zone. This cycle is repeated to achieve the effect of the auxiliary screw conveyor system discharging the water vapor discharged from the waste into the furnace body. Meanwhile, the rotation of the telescopic rotating plate can drive the scraper inside the inner tube to rotate via the connecting block, thereby enabling the scraper to continuously scrape the inner wall of the inner tube, which can effectively prevent un-pyrolyzed waste from adhering to the discharge port of the conveying component and condensing into clumps.

[0008] Based on the above solution, the present invention can be further improved as follows: Furthermore, the telescopic rotating plate includes a second rotating plate and a first rotating plate that slides along the length of the second rotating plate. An elastic element is provided between the first rotating plate and the second rotating plate. A sleeve is fitted below the inner tube. One end of the sleeve is fixedly connected to the transmission structure, and the other end of the sleeve extends into the interior of the telescopic rotating plate and is fixedly connected to the second rotating plate. The transmission structure drives the sleeve to rotate, thereby driving the telescopic rotating plate to rotate.

[0009] Furthermore, the first rotating plate extends into the interior of the second rotating plate, and a limiting structure is provided between the first rotating plate and the second rotating plate to ensure the stability of the first rotating plate sliding along the length direction of the second rotating plate. The elastic element is provided inside the second rotating plate along the length direction of the second rotating plate.

[0010] By adopting the above-mentioned further solution, the telescopic rotating plate is divided into rotating plate one and rotating plate two, with rotating plate one extending into the interior of rotating plate two. An elastic element one and a limiting structure one are set between rotating plate one and rotating plate two along the length direction of rotating plate one, so that the telescopic rotating plate can achieve the telescopic effect according to the different distribution of protrusions and depressions on the outer shell.

[0011] Furthermore, the transmission structure includes a transmission unit and a worm gear rotatably disposed outside the inner tube. The worm gear is fixedly connected to the sleeve, and the transmission unit provides power to the worm gear, thereby driving the telescopic rotating plate to rotate through the worm gear and the sleeve. One end of the outer shell is fixedly connected to the inner tube, and the other end is rotatably disposed outside the sleeve, so that when the worm gear drives the telescopic rotating plate to rotate, it will not drive the outer shell to rotate.

[0012] Furthermore, a limiting structure 2 is provided between the second rotating plate and the outer shell to limit the rotation path of the telescopic rotating plate; The transmission unit includes a worm, a transmission shaft, and a transmission gear set. One end of the transmission shaft is fixedly provided with a worm, and the other end of the transmission shaft is fixedly provided with a transmission gear set. The transmission gear set is fixedly connected to the output shaft of the drive mechanism. The worm meshes with a worm wheel.

[0013] Furthermore, the inner tube is provided with a sliding groove, which surrounds a portion of the inner tube's circumference and extends through the inner tube; the connecting block slides along the sliding groove.

[0014] Furthermore, the chute is provided on different horizontal planes or the same horizontal plane of the inner tube, and at least one is provided along the circumferential direction of the inner tube; Each of the grooves is provided with a connecting block, and a stop block is provided inside the connecting block. The stop block outside the connecting block extends into the space between the inner tube and the outer shell. The end of the stop block inside the connecting block is provided with an elastic element 2. Along the rotation direction of the telescopic rotating plate, each of the slide grooves is fixedly provided with an elastic element and a pressure rod at its tail. The connecting block is provided with a pressure rod groove. When the pressure rod extends into the pressure rod groove, it can cause the stop block to retract into the connecting block.

[0015] Furthermore, each side of the connecting block is provided with a baffle plate, which is located in the sliding groove and can be folded along the sliding path of the connecting block; One end of the baffle is fixedly connected to the side wall of the connecting block, and the other end is fixedly connected to the end of the slide groove.

[0016] With the above-mentioned further solution, when the telescopic rotating plate drives the connecting block to rotate to the tail of the chute, the pressure rod can cause the stop block to retract into the connecting block. At the same time, the elastic element three springs the connecting block and the scraper back to the initial state in the opposite direction of the rotation direction of the telescopic rotating plate. Since the end of the stop block that extends into the connecting block is provided with the elastic element two, when the connecting block is disengaged from the pressure rod, the end of the stop block will extend out of the connecting block. This cycle is repeated to realize that the scraper scrapes the inner wall of the inner tube, which can effectively prevent waste from adhering to the inner wall of the inner tube and agglomerating into clumps. Meanwhile, by setting foldable baffles on both sides of the connecting block, waste can be prevented from escaping outside the inner tube no matter which direction the connecting block rotates.

[0017] Furthermore, the stop block is provided with a pressure rod groove with a beveled surface on the side near the pressure rod, and the pressure rod is provided with a matching beveled surface at the end near the stop block, the beveled surface pointing from the upper left of the stop block to the lower right; The end of the stop block that extends out of the connecting block has a rounded corner.

[0018] By adopting the above-mentioned further solution, the oblique cut surfaces on the pressure rod and the pressure rod groove can be matched to make the stop block press back into the connecting block when the pressure rod extends into the connecting block.

[0019] The beneficial effects of the present invention through the above technical solution are as follows: 1. In this invention, the protrusions and recesses on the outer shell divide the area between the inner tube and the outer shell into an expansion zone and a compression zone. A telescopic rotating plate, capable of extending and retracting with changes in the shape of the outer shell, is also provided between the inner tube and the outer shell. When the transmission structure drives the telescopic rotating plate to rotate around the inner tube to the expansion zone, the sudden increase in volume causes a momentary decrease in local pressure within the expansion zone, allowing the water vapor discharged from the waste to be drawn into the expansion zone by the conveying component. As the telescopic rotating plate rotates, the water vapor in the expansion zone enters the compression zone. The sudden decrease in volume within the compression zone causes a sudden increase in local pressure, discharging the water vapor from the compression zone into the furnace body. This cycle repeats, continuously drawing the water vapor discharged from the waste into the furnace body, and then discharging it out of the furnace body via the reburner, thus ensuring the pyrolysis efficiency of the waste.

[0020] 2. In this invention, a connecting block and a scraper are provided between the outer shell and the inner tube, and the scraper is located inside the inner tube. When the telescopic rotating plate rotates, it can drive the scraper located inside the inner tube to rotate through the connecting block, thereby enabling the scraper to continuously scrape the inner wall of the inner tube, which can prevent waste from adhering to the inner tube and agglomerating, thereby ensuring the transfer efficiency of waste in the screw conveyor system.

[0021] 3. In this invention, the telescopic rotating plate is divided into rotating plate one and rotating plate two, with rotating plate one extending into the interior of rotating plate two. An elastic element one and an elastic structure one are provided between rotating plate two along the length direction of rotating plate two, so that the telescopic rotating plate can achieve the telescopic effect according to the different distribution of protrusions and depressions on the outer shell.

[0022] 4. In this invention, by providing baffles on both sides of the connecting block, the inner tube and the outer shell can be separated when the connecting block rotates, thereby preventing waste from running to the outside of the inner tube. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the conveying component in this invention; Figure 3 This is a schematic diagram of the material discharge assembly of the present invention (view of the outer shell). Figure 4 This is the present invention. Figure 1 A magnified view of a section at point A in the middle; Figure 5 This is a schematic diagram of the telescopic rotating plate in this invention; Figure 6 This is a cross-sectional view of the telescopic rotating plate in this invention when it rotates to the expansion zone; Figure 7 This is a cross-sectional view of the connection between the transfer plate assembly and the transmission structure in this invention; Figure 8 This is the present invention. Figure 7 A magnified view of a section at point B in the middle; Figure 9 This is the present invention. Figure 5 A magnified view of a section at point C; Figure 10 This is a schematic diagram of the scraper assembly in this invention. Figure 11 This is a cross-sectional view of the discharge component in this invention; Figure 12 This is the present invention. Figure 11 A magnified view of a section at point D; Figure 13 This is the present invention. Figure 11A magnified view of a section at point E in the middle; Figure 14 This is a schematic diagram of the structure of Embodiment 2.

[0024] The attached diagram is labeled as follows: 1. Furnace body; 2. Conveying assembly; 21. Air outlet; 22. Drive mechanism one; 23. Feed inlet; 24. Discharge outlet; 3. Discharge assembly; 31. Inner tube; 311. Slide groove; 32. Outer shell; 33. Expansion zone; 34. Compression zone; 35. Through hole; 4. Rotating plate assembly; 41. Telescopic rotating plate; 411. Rotating plate one; 412. Rotating plate two; 42. Transmission structure; 421. Transmission unit; 422. Worm gear; 423. Sleeve; 424. Worm; 43. Elastic element one. 5. Scraper assembly, 51. Connecting block, 513. Stop block, 515. Pressure rod, 516. Pressure rod groove one, 517. Baffle one, 518. Pressure rod groove two, 52. Scraper. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: Example 1: like Figures 1-2 As shown, a drying carbonization furnace that promotes water vapor emission includes a furnace body 1, a preheating furnace at the bottom of the furnace body 1, and a reburning furnace at the top of the furnace body 1. The furnace body 1 has four longitudinally arranged conveying components 2. Each conveying component 2 has a conveying structure for conveying waste material. The top of the conveying component 2 is provided with multiple air outlets 21 spaced apart along the length of the conveying component 2. One end of each conveying component 2 is provided with a drive mechanism 22 and a feed inlet 23. The other end of the conveying component 2 is provided with a discharge outlet 24. The drive mechanism 22 is a motor. The conveying directions of two adjacent conveying components 2 are opposite. The discharge outlet 24 of the upper conveying component 2 is connected to the feed inlet 23 of the lower conveying component 2 through a discharge component 3. like Figure 3 As shown, the discharge assembly 3 includes an inner tube 31 and an outer shell 32 sleeved outside the inner tube 31. The upper and lower ends of the outer shell 32 are provided with several through holes 35. The upper and lower ends of the outer shell 32 each have two corresponding protrusions and two corresponding recesses, so that the area between the inner tube 31 and the outer shell 32 is divided into two expansion areas 33 and two compression areas 34 as the shape of the outer shell 32 changes. Specifically, the area between the inner tube 31 and the outer shell 32 during the transition from the lowest point of the recess to the highest point of the protrusion is the expansion area 33, and the area between the inner tube 31 and the outer shell 32 during the transition from the highest point of the protrusion to the lowest point of the recess is the compression area 34, so that the two compression areas 34 and the two expansion areas 33 are respectively arranged in a cross pattern. like Figure 4 As shown, the through hole 35 in the expansion zone 33 is connected to the air outlet 21 on the conveying assembly 2. Specifically, the air outlet 21 on the conveying assembly 2 is connected through an air pipe, which is also connected to the through hole 35 in the expansion zone 33. The through hole 35 in the compression zone 34 is connected to the interior of the furnace body 1.

[0026] like Figure 3 and Figure 5 As shown, a rotating plate assembly 4 and a scraper assembly 5 are provided between the outer shell 32 and the inner tube 31. The rotating plate assembly 4 includes a transmission structure 42 and four telescopic rotating plates 41. The telescopic rotating plates 41 are located between the outer shell 32 and the inner tube 31, dividing the space between the outer shell 32 and the inner tube 31 into at least two non-communicating areas. Specifically, the left and right sides of the telescopic rotating plates 41 are in contact with the side walls of the adjacent outer shell 32 and inner tube 31, and the upper and lower ends of the telescopic rotating plates 41 are in contact with the upper and lower ends of the outer shell 32. The ends of the telescopic rotating plates 41 can extend and retract. The transmission structure 42 is located below the inner tube 31 and outside the outer shell 32, and is used to drive the telescopic rotating plates 41 to rotate around the inner tube 31, so that the telescopic rotating plates 41 can extend and retract according to the distribution of the protrusions and recesses on the outer shell 32. like Figure 6 As shown, the telescopic rotating plate 41 includes a second rotating plate 412 and a first rotating plate 411 that slides along the length of the second rotating plate 412. An elastic element 43 is provided between the first rotating plate 411 and the second rotating plate 412. A sleeve 423 is sleeved below the inner tube 31. One end of the sleeve 423 is fixedly connected to the transmission structure 42, and the other end of the sleeve 423 extends into the interior of the telescopic rotating plate 41 and is fixedly connected to the second rotating plate 412. The transmission structure 42 drives the sleeve 423 to rotate, thereby driving the telescopic rotating plate 41 to rotate.

[0027] Specifically, the transmission structure 42 can drive the telescopic rotating plate 41 to rotate through the sleeve 423. When the telescopic rotating plate 41 rotates around the inner tube 31 to the expansion zone 33, the volume suddenly increases, causing the local pressure to decrease instantaneously. This draws the gas in the conveying component 2 into the expansion zone 33 through the gas outlet 21 and the gas pipe. As the telescopic rotating plate 41 rotates, when it rotates to the compression zone 34, the volume suddenly decreases, causing the local pressure in the zone to increase. This discharges the gas drawn from the conveying component 2 into the furnace body 1 through the through hole 35, and then out of the furnace body 1 by the reburner. This helps the water vapor released during the waste pyrolysis process to be discharged from the conveying component 2 into the furnace body 1, thereby ensuring the pyrolysis efficiency of the waste.

[0028] In this embodiment, as Figure 1 and Figure 4As shown, the discharge assembly 3 located at the uppermost end of the furnace body 1 has through holes 35 at both ends of the outer shell 32 in the expansion zone 33 area. The through hole 35 at the upper end of the outer shell 32 in the expansion zone 33 area is connected to the air outlet 21 of the conveying assembly 2 above the discharge assembly 3 through an air pipe. The through hole 35 at the lower end of the outer shell 32 in the expansion zone 33 area is connected to the air outlet 21 of the conveying assembly 2 below the discharge assembly 3 through an air pipe. The remaining discharge components 3 inside the furnace body 1 have through holes 35 only at the lower end of the outer shell 32 located in the expansion zone 33 area. The through holes 35 at the lower end of the outer shell 32 in the expansion zone 33 area are connected to the air outlet 21 of the conveying component 2 below the discharge component 3 through an air pipe. All the discharge components 3 inside the furnace body 1 have through holes 35 at both ends of the outer shell 32 located in the compression zone 34 area, and are connected to the inside of the furnace body 1.

[0029] As one possible implementation method, such as Figure 5 and Figure 6 As shown, the first rotating plate 411 extends into the interior of the second rotating plate 412. A limiting structure is provided between the first rotating plate 411 and the second rotating plate 412. The limiting structure includes a protrusion on the first rotating plate 411 and a groove on the second rotating plate 412. The protrusion slides in the groove, thereby ensuring the stability of the first rotating plate 411 sliding along the length direction of the second rotating plate 412. The elastic element 43 is provided inside the second rotating plate 412 along the length direction of the second rotating plate 412.

[0030] Specifically, the elastic element 43 is a spring, and the inner wall of the outer shell 32 and the outer wall of the inner tube 21 are provided with rubber sleeves that match the extension and retraction of the rotating plate 411. This is to ensure that when the rotating plate 411 is extended, the areas separated by the telescopic rotating plate 41 between the outer shell 32 and the inner tube 21 are independent of each other, that is, the sealing of the area enclosed by the two adjacent telescopic rotating plates 41 and the outer shell 32 and the inner tube 21.

[0031] As one possible implementation method, such as Figure 7 and Figure 8 As shown, the transmission structure 42 includes a transmission unit 421 and a worm gear 422 rotatably disposed outside the inner tube 31. The worm gear 422 is fixedly connected to the sleeve 423. The transmission unit 421 provides power to the worm gear 422. To ensure the stability of the rotation of the sleeve 423, a structure of protrusions and grooves can be provided between the sleeve 423 and the inner tube 31 to limit the rotation path of the sleeve. The upper end of the outer shell 32 is fixedly connected to the inner tube 31, and the lower end is rotatably disposed outside the sleeve 423; so that when the worm gear 422 drives the telescopic rotating plate 41 to rotate through the sleeve 423, it will not drive the outer shell 32 to rotate.

[0032] As one possible implementation, a limiting structure 2 is provided between the second rotating plate 412 and the outer shell 32 to limit the rotation path of the telescopic rotating plate 41. The limiting structure 2 includes a groove 2 opened in the middle of the second rotating plate 412 and a protrusion 2 provided in the middle of the outer shell 32. The groove 2 is engaged on the protrusion 2 and slides along the protrusion 2. The transmission unit 421 includes a worm 424, a transmission shaft, and a transmission gear set. The worm 424 is fixedly mounted on one end of the transmission shaft, and the transmission gear set is fixedly mounted on the other end of the transmission shaft. The transmission gear set is fixedly connected to the output shaft of the drive mechanism 22. The worm 424 meshes with the worm wheel 422, so that the drive mechanism 22 can drive the worm wheel 422, i.e., the telescopic rotating plate 41, to rotate while providing power to the conveying structure.

[0033] like Figure 5 As shown, a scraper assembly 5 is also provided between the outer shell 32 and the inner tube 31; The scraper assembly 5 includes a connecting block 51 and a scraper 52. One end of the connecting block 51 is fixedly connected to the scraper 52 located inside the inner tube 31. The scraper 52 is in contact with the inner wall of the inner tube 3. The other end of the connecting block 51 is located between the outer shell 32 and the inner tube 31, so that when the telescopic rotating plate 41 rotates, it can drive the connecting block 51 and the scraper 52 to rotate around the inner tube 31, thereby scraping the inner wall of the inner tube 31 by the scraper 52, preventing waste from adhering to the discharge port of the conveying assembly and condensing into clumps.

[0034] As one possible implementation method, such as Figure 5 As shown, the inner tube 31 is provided with a sliding groove 311, which is arranged around the inner tube 31 but not the entire circumference, and passes through the inner tube 31.

[0035] Specifically, the slide grooves 311 are provided on different horizontal planes of the inner tube 31, and four slide grooves 311 are provided on each horizontal plane along the circumferential direction of the inner tube 31. like Figure 5 and Figure 9 As shown, a connecting block 51 is slidably provided in each of the slide grooves 311, and the connecting block 51 slides along the slide groove 311. A limiting structure three is provided between the connecting block 51 and the slide groove 311. The limiting structure three includes a protrusion three provided on the slide groove 311 and a groove three provided on the connecting block 51. The groove three slides along the protrusion three, thereby restricting the connecting block 51 from sliding along the slide groove 311. like Figures 10-13 As shown, a stop 513 is slidably provided inside the connecting block 51, and the stop 513 outside the connecting block 51 extends into the space between the inner tube 31 and the outer shell 32. The end of the stop 513 inside the connecting block 51 is provided with an elastic element two, which is a spring. The connecting block 51 is provided with a pressure rod groove 516. Along the rotation direction of the telescopic rotating plate 41, each of the sliding grooves 311 is fixedly provided with an elastic element 3 and a pressure rod 515. The elastic element 3 is a spring. When the pressure rod 515 extends into the pressure rod groove 516, it can cause the stop block 513 to retract into the connecting block 51.

[0036] In this embodiment, when the telescopic rotating plate 41 drives the connecting block 51 to rotate to the tail of the slide groove 311, the pressure rod 515 can cause the stop block 513 to retract into the connecting block 51. At the same time, the elastic element three springs the connecting block 51 and the scraper 52 back to the initial state in the opposite direction to the rotation direction of the telescopic rotating plate 41. Since the end of the stop block 513 that extends into the connecting block 51 is provided with the elastic element two, when the connecting block 51 is disengaged from the pressure rod 515, the stop block 513 will extend out of the connecting block 51 and contact the next telescopic rotating plate 41. This cycle is repeated, so that the scraper 52 scrapes the inner wall of the inner tube 31, which can effectively prevent waste from adhering to the inner wall of the inner tube 31 and agglomerating.

[0037] As one possible implementation method, such as Figure 10 and Figure 11 As shown, baffles 517 are provided on both sides of the connecting block 51. The baffles 517 are located in the sliding groove 311 and can be folded along the sliding path of the connecting block 51. One end of the baffle 517 is fixedly connected to the side wall of the connecting block 51, and the other end is fixedly connected to the end of the slide groove 311. Under the action of the foldable baffle 517, the connecting block 51 can prevent waste from running out of the inner tube 31 no matter which direction it rotates.

[0038] In this embodiment, the grooves 311 are arranged on two horizontal planes of the inner tube 31 along the axial direction of the inner tube 31. Four grooves 311 are arranged in a circular array along the circumference of the inner tube 31 on each horizontal plane, and the grooves 311 on different horizontal planes correspond to each other vertically. Two connecting blocks 51 in the vertically corresponding grooves 311 are fixedly connected to the same scraper 52. A total of eight connecting blocks 51 and four scrapers 52 are provided.

[0039] As one possible implementation method, such as Figure 12 and Figure 13 As shown, the stop block 513 has a pressure rod groove 518 with a beveled surface on the side near the pressure rod 515, and the pressure rod 515 has a matching beveled surface at the end near the stop block 513. The beveled surface points from the upper left to the lower right of the stop block 513, so that when the pressure rod 515 extends into the connecting block 51, the beveled surface on the pressure rod 515 cooperates with the beveled surface of the pressure rod groove 518, which can press the stop block 513 back into the connecting block 51. The structure is simple. The end of the stop block 513 that extends out of the connecting block 51 has a rounded corner.

[0040] In use, the drive mechanism 22 drives the worm gear 422 to rotate, which in turn drives the telescopic rotating plate 41 to rotate around the inner tube 31. When the telescopic rotating plate 41 rotates to the expansion zone 33, the volume suddenly increases, causing the local pressure in the expansion zone 33 to decrease instantaneously. This allows the water vapor discharged from the waste in the conveying component 2 to be drawn into the expansion zone 33 through the air outlet 21 and the air pipe. As the telescopic rotating plate 41 rotates, when it rotates to the compression zone 34, the volume suddenly decreases, causing the local pressure in the compression zone 34 to increase. This allows the water vapor in the compression zone 34 to be discharged into the furnace body 1 through the through hole 35 in the compression zone. Each rotation of the telescopic rotating plate 41 completes two extractions of water vapor discharged from the waste in the conveying component 2. Simultaneously, when the telescopic rotating plate 41 rotates, it can drive the connecting block 51 to rotate along the slide groove 311 via the stop block 513, thereby driving the scraper 52 to rotate along the inner wall of the inner tube 31, thus enabling the scraper 52 to scrape the inner wall of the inner tube 31. When the telescopic rotating plate 41 drives the connecting block 51 to rotate to the tail of the slide groove 311, the pressure rod 515 extends along the pressure rod groove 1 516 on the connecting block 51 into the pressure rod groove 2 518 in the stop block 513. With the cooperation of the inclined surface of the pressure rod groove 2 518 and the inclined surface of the pressure rod 515, the stop block 51 is pushed. 3. Press back into the connecting block 51. At the same time, the elastic element 2 will spring back the connecting block 51 and the scraper 52 to the initial state in the opposite direction of the rotation direction of the telescopic rotating plate 41. Since the end of the stop block 513 that extends into the connecting block 51 is provided with the elastic element 2, when the connecting block 51 is separated from the pressure rod 515, the stop block 513 will extend out of the connecting block 51 and contact the next telescopic rotating plate 41. This cycle is repeated to realize that the scraper 52 scrapes the inner wall of the inner tube 31, which can effectively prevent the waste that has not been fully pyrolyzed from adhering to the outlet of the conveying component and condensing into clumps.

[0041] Example 2: The technical solution in this embodiment is the same as that in Embodiment 1, except that: like Figure 14 As shown, the discharge assembly 3 located at the lowest end of the furnace body 1 has through holes 35 at both ends of the outer shell 32 in the expansion zone 33 area. The through hole 35 at the upper end of the outer shell 32 in the expansion zone 33 area is connected to the air outlet 21 of the conveying assembly 2 above the discharge assembly 3 through an air pipe. The through hole 35 at the lower end of the outer shell 32 in the expansion zone 33 area is connected to the air outlet 21 of the conveying assembly 2 below the discharge assembly 3 through an air pipe. The remaining discharge components 3 inside the furnace body 1 have through holes 35 only at the upper end of the outer shell 32 located in the expansion zone 33 area. The through holes 35 at the upper end of the outer shell 32 in the expansion zone 33 area are connected to the air outlet 21 of the conveying component 2 above the discharge component 3 through an air pipe. All the discharge components 3 inside the furnace body 1 have through holes 35 at both ends of the outer shell 32 located in the compression zone 34 area, and are connected to the inside of the furnace body 1.

[0042] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Any equivalent or similar modifications or substitutions to the technical solutions of the present invention without departing from the spirit of the present invention or the scope of disclosure shall fall within the protection scope of the present invention.

Claims

1. A drying carbonization furnace for promoting water vapor emission, comprising a furnace body (1), a preheating furnace disposed at the bottom of the furnace body (1), and a reburning furnace disposed at the top of the furnace body (1), wherein the furnace body (1) is provided with a plurality of conveying components (2), the top of each conveying component (2) is provided with an exhaust port (21), one end of each conveying component (2) is provided with a drive mechanism (22) and a feed inlet (23), the other end of each conveying component (2) is provided with a discharge port (24), and two adjacent conveying components (2) are connected by a discharge component (3); characterized in that, The discharge assembly (3) includes an inner tube (31) and an outer shell (32) sleeved outside the inner tube (31). The outer shell (32) has several through holes (35) at both ends. The outer shell (32) has at least one upper and lower corresponding protrusion and at least one upper and lower corresponding recess at both ends. The area between the inner tube (31) and the outer shell (32) is divided into an expansion area (33) and a compression area (34) as the shape of the outer shell (32) changes. The through holes (35) in the expansion area (33) and the compression area (34) are respectively connected to the air outlet (21) and the interior of the furnace body (1). A rotating plate assembly (4) and a scraper assembly (5) are provided between the outer shell (32) and the inner tube (31); The rotating plate assembly (4) includes a transmission structure (42) and at least one telescopic rotating plate (41). The telescopic rotating plate (41) is located between the outer shell (32) and the inner tube (31), and divides the space between the outer shell (32) and the inner tube (31) into at least two non-communicating areas. The two ends of the telescopic rotating plate (41) are telescopic. The transmission structure (42) is located below the inner tube (31) and outside the outer shell (32), and is used to drive the telescopic rotating plate (41) to rotate around the inner tube (31), so that the telescopic rotating plate (41) can extend and retract as the shape of the outer shell (32) changes. The scraper assembly (5) includes a connecting block (51) and a scraper (52). One end of the connecting block (51) is fixedly connected to the scraper (52) located inside the inner tube (31), and the other end of the connecting block (51) is located between the outer shell (32) and the inner tube (31), so that when the telescopic rotating plate (41) rotates, it can drive the connecting block (51) and the scraper (52) to rotate around the inner tube (31).

2. The drying and carbonization furnace for promoting water vapor emission according to claim 1, characterized in that, The telescopic rotating plate (41) includes a second rotating plate (412) and a first rotating plate (411) that slides along the length of the second rotating plate (412). An elastic element (43) is provided between the first rotating plate (411) and the second rotating plate (412). A sleeve (423) is fitted below the inner tube (31). One end of the sleeve (423) is fixedly connected to the transmission structure (42), and the other end of the sleeve (423) extends into the telescopic rotating plate (41) and is fixedly connected to the second rotating plate (412). The transmission structure (42) drives the sleeve (423) to rotate, thereby driving the telescopic rotating plate (41) to rotate.

3. A drying and carbonization furnace for promoting water vapor emission according to claim 2, characterized in that, The first rotating plate (411) extends into the interior of the second rotating plate (412). A limiting structure is provided between the first rotating plate (411) and the second rotating plate (412) to ensure the stability of the first rotating plate (411) sliding along the length direction of the second rotating plate (412). The first elastic element (43) is located inside the second rotating plate (412) along the length direction of the second rotating plate (412).

4. A drying and carbonization furnace for promoting water vapor emission according to claim 1, characterized in that, The transmission structure (42) includes a transmission unit (421) and a worm gear (422) rotatably disposed outside the inner tube (31). The worm gear (422) is fixedly connected to the sleeve (423), and the transmission unit (421) provides power to the worm gear (422). One end of the outer shell (32) is fixedly connected to the inner tube (31), and the other end is rotatably disposed outside the sleeve (423).

5. A drying and carbonization furnace for promoting water vapor emission according to claim 4, characterized in that, A limiting structure 2 is provided between the second rotating plate (412) and the outer shell (32) to limit the rotation path of the telescopic rotating plate (41); The transmission unit (421) includes a worm (424), a transmission shaft, and a transmission gear set. One end of the transmission shaft is fixedly provided with a worm (424), and the other end of the transmission shaft is fixedly provided with a transmission gear set. The transmission gear set is fixedly connected to the output shaft of the drive mechanism (22), and the worm (424) meshes with a worm wheel (422).

6. A drying and carbonization furnace for promoting water vapor emission according to claim 1, characterized in that, The inner tube (31) is provided with a sliding groove (311), which is arranged around the inner tube (31) but not the entire circumference, and passes through the inner tube (31); the connecting block (51) slides along the sliding groove (311).

7. A drying and carbonization furnace for promoting water vapor emission according to claim 6, characterized in that, The chute (311) is provided on different horizontal planes or the same horizontal plane of the inner tube (31), and at least one is provided along the circumferential direction of the inner tube (31); Each of the grooves (311) is provided with a connecting block (51), and a stop block (513) is provided in the connecting block (51). The stop block (513) outside the connecting block (51) extends between the inner tube (31) and the outer shell (32). The end of the stop block (513) inside the connecting block (51) is provided with an elastic element. Along the rotation direction of the telescopic rotating plate (41), each of the slide grooves (311) is fixedly provided with an elastic element and a pressure rod (515) at its tail. The connecting block (51) is provided with a pressure rod groove (516). When the pressure rod (515) extends into the pressure rod groove (516), it can cause the stop block (513) to retract into the connecting block (51).

8. A drying carbonization furnace for promoting water vapor emission according to claim 7, characterized in that, Both sides of the connecting block (51) are provided with baffles (517), which are located in the sliding groove (311) and can be folded along the sliding path of the connecting block (51). One end of the baffle (517) is fixedly connected to the side wall of the connecting block (51), and the other end is fixedly connected to the end of the slide (311).

9. A drying carbonization furnace for promoting water vapor emission according to claim 8, characterized in that, The stop block (513) has a pressure rod groove (518) with a beveled surface on the side near the pressure rod (515), and the pressure rod (515) has a matching beveled surface at the end near the stop block (513), the beveled surface pointing from the upper left of the stop block (513) to the lower right. The end of the stop block (513) extending out of the connecting block (51) has a rounded corner.

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