Waste biomass recycling carbonization furnace and working method thereof

Abstract

The invention belongs to the technical field of burning of waste or low-grade fuel, and particularly relates to a waste biomass recycling carbonization furnace and a working method thereof.The waste biomass recycling carbonization furnace comprises a furnace body, one side of the furnace body is provided with a lifting door, a partition layer is arranged in the lifting door, and a push plate suitable for sliding up and down is arranged in the partition layer; a partition layer is arranged in the lifting door, a push plate is arranged in the partition layer, a sealing sleeve is arranged on the side wall of the push plate so as to be tightly attached to the side wall of the partition layer, a supporting part is arranged at the bottom of the push plate, a cavity is formed in the partition layer and located above the push plate, and inert gas with standard atmospheric pressure is contained in the cavity. The heat preservation effect of the lifting door is improved through inert gas in the interlayer, meanwhile, the push plate is arranged in the interlayer, gas above the push plate is compressed for buffering, the supporting part is arranged at the bottom of the push plate to support the push plate, the phenomenon that the bottom of the sealing sleeve is cracked under the gravity action of the push plate is avoided, and the service life of the sealing sleeve is prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of incineration of waste or low-grade fuel, and specifically relates to a method or device specially suitable for incinerating waste or low-grade fuel, and more particularly to a waste biomass recycling carbonization furnace and a working method thereof. Background Art

[0002] A carbonization furnace is a device used to pyrolyze and carbonize organic matter at high temperature. Its working principle is to increase the temperature to pyrolyze organic matter under oxygen-free or low-oxygen conditions to produce charcoal or other carbonized products.

[0003] In order to replace the materials in the furnace, the carbonization furnace is equipped with a lifting door, but the insulation effect of the lifting door is poor, which will reduce the working efficiency of the carbonization furnace. For this reason, an inert gas insulation layer is set in the lifting door to improve the insulation effect, and a push plate for buffering is set in the layer. The push plate side needs to be used with a sealing sleeve. If the lifting door is in the open state, the push plate will exert a force on the bottom of the sealing sleeve under the action of gravity, thereby aggravating the cracking of the bottom of the sealing sleeve, causing the inert gas in the insulation layer to leak, and the sealing sleeve needs to be replaced.

[0004] Therefore, it is urgent to design a waste biomass recycling carbonization furnace to avoid the technical problem of cracking of the bottom of the sealing sleeve due to the gravity of the push plate.

[0005] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Summary of the invention

[0006] The embodiments of the present disclosure at least provide a waste biomass recycling carbonization furnace and a working method thereof.

[0007] In a first aspect, an embodiment of the present disclosure provides a waste biomass recycling carbonization furnace, comprising: a furnace body, a lifting door is provided on one side of the furnace body, and a driving mechanism is also provided on the top of the furnace body, and the driving mechanism is transmission-connected to the lifting door; The lifting door has a partition layer inside, a push plate suitable for sliding up and down is arranged in the partition layer, a sealing sleeve is arranged on the side wall of the push plate to be close to the side wall of the partition layer, the push plate also has a sliding portion extending downward and protruding from the bottom of the lifting door, and a supporting portion is arranged at the bottom of the push plate; A cavity is provided in the partition and above the push plate, and the cavity contains an inert gas at a standard atmospheric pressure; wherein When the lifting door is lowered to the point of being closed, the sliding part is abutted against the closing part of the door bottom, so that the sliding part pushes the push plate to slide upward along the partition, compressing the inert gas in the cavity to provide a buffer; and The lifting door rises, and the compressed inert gas pushes the push plate to slide downward along the partition to near the bottom of the partition, and the support part abuts against the bottom of the partition and supports the push plate, so that the sealing sleeve remains in a relaxed state.

[0008] In an optional embodiment, a through hole is opened in the middle of the push plate, and a valve is arranged in the through hole; The support portion includes a cylinder connected to the through hole, and a piston suitable for sliding downward is arranged in the cylinder; wherein When the lifting door is lowered to the point of being closed, the valve is opened, the compressed inert gas in the cavity enters the cylinder, and the piston slides downward to protrude from the bottom of the cylinder and maintains this state; and After the lifting door rises to the maximum height, the protruding end of the piston abuts against the bottom of the partition, so that the cylinder supports the push plate and the sealing sleeve remains in a relaxed state.

[0009] In an optional embodiment, a sliding station penetrating the partition is provided at the bottom of the lifting door; The sliding part includes two sliding rods extending downward, the sliding rods are inserted into the sliding station and protrude from the bottom of the lifting door; After the lifting door descends to the point where the rod end of the sliding rod contacts the door bottom and closes, the lifting door continues to descend, so that the sliding rod pushes the push plate to slide upward, compressing the inert gas in the cavity to buffer the descent of the lifting door; and When the end of the sliding rod is about to completely enter the sliding position, the pressure on the valve reaches a threshold value, and the valve automatically opens to allow the compressed inert gas in the cavity to enter the cylinder.

[0010] In an optional embodiment, the valve includes a solenoid valve and a pressure valve; The solenoid valve comprises a valve plate, and the pressure valve is arranged in the middle of the valve plate; When the end of the sliding rod is about to completely enter the sliding position, the pressure on the pressure valve reaches a threshold value, and the pressure valve automatically opens to realize automatic opening of the valve; and When the lifting door is about to descend, the solenoid valve is opened so that the valve plate no longer closes the through hole. At this time, the push plate slides downward due to its own gravity, so that the piston slides upward into the cylinder, thereby allowing the inert gas in the cylinder to flow back to the cavity, and then the solenoid valve is closed.

[0011] In an optional embodiment, the sealing sleeve is V-shaped and has a higher end and a lower end; The lower end is fixedly connected to the bottom surface of the edge of the push plate; The higher end is inserted from the gap between the push plate and the wall of the barrier cavity to achieve sealing of the cavity above the push plate.

[0012] In an optional embodiment, the driving mechanism includes a driving motor, a driving wheel and a transmission chain; A support frame is provided on the top of one side of the furnace body provided with a lifting door, a rotating shaft parallel to the furnace top is provided on the support frame, at least three driven wheels are provided on the rotating shaft, and one of the driven wheels is located outside the support frame; The transmission chain connects the driving wheel and the driven wheel located outside the support frame; A chain is connected to the top of the lifting door, the chain is hung on a driven wheel located inside the support frame, and a counterweight is connected to the other end of the chain; and The driving motor is suitable for driving the driving wheel to rotate, so as to drive the driven wheel located outside the support frame to rotate through the transmission chain, so that the rotating shaft rotates, and then the driven wheel located inside the support frame rotates, and then drives the chain to lift or lower the lifting door.

[0013] In an optional embodiment, a limited position is provided on the side wall of the furnace body on which the lifting door is provided; The limiting station comprises two limiting members protruding from the side wall and symmetrically arranged, and an abutment plate is arranged below the limiting members; The lifting door is located between the two limiting members, and the lifting door is in contact with the limiting members; and After the lifting door is closed, the lifting door is in contact with the side wall of the furnace body, and the bottom of the lifting door is in contact with the abutment plate.

[0014] In a second aspect, the embodiments of the present disclosure further provide a waste biomass recycling carbonization furnace, comprising: a furnace body, one side of which is provided with a limit position, the limit position comprising two limit members protruding from the side wall and symmetrically arranged; A lifting door is also arranged on one side of the furnace body and is located between the two limit members, and the lifting door is suitable for lifting and lowering along the limit position; A partition is provided inside the lifting door, a push plate suitable for sliding up and down is provided inside the partition, a sealing sleeve is provided on the side wall of the push plate to closely fit the side wall of the partition, and a supporting part is provided at the bottom of the push plate; and A cavity is arranged in the partition layer and above the push plate, and an inert gas at a standard atmospheric pressure is contained in the cavity to improve the heat preservation effect of the lifting door.

[0015] In an optional embodiment, a sliding station penetrating the partition is provided at the bottom of the lifting door; The push plate has a sliding portion extending downward, and the sliding portion includes two sliding rods extending downward, and the sliding rods are inserted into the sliding station and protrude from the bottom of the lifting door; An abutment plate is provided below the limiting member; After the lifting door descends until the rod end of the sliding rod contacts the abutment plate, the lifting door continues to descend, so that the sliding rod pushes the push plate to slide upward, compressing the inert gas in the cavity to buffer the descent of the lifting door; and The lifting door rises, and the compressed inert gas pushes the push plate to slide downward along the partition to near the bottom of the partition, and the support part abuts against the bottom of the partition and supports the push plate, so that the sealing sleeve remains in a relaxed state.

[0016] In a third aspect, the embodiment of the present disclosure further provides a working method of the carbonization furnace as described above, comprising: when the lifting door is lowered to be about to be closed, the sliding part is abutted by the closing part of the door bottom, so that the sliding part pushes the push plate to slide upward along the partition layer, compressing the inert gas in the cavity to buffer; and When the lifting door rises, the compressed inert gas pushes the push plate to slide downward along the partition to near the bottom of the partition, and the support part abuts against the bottom of the partition and supports the push plate to keep the sealing sleeve in a relaxed state.

[0017] The beneficial effects of the present invention are that the waste biomass recycling carbonization furnace and its working method improve the thermal insulation effect of the lifting door by arranging a partition inside the lifting door, and using the inert gas in the partition to improve the thermal insulation effect of the lifting door. At the same time, a push plate is arranged in the partition to compress the gas above the push plate for buffering, and a support part is arranged at the bottom of the push plate to support the push plate, thereby avoiding cracking of the bottom of the sealing sleeve due to the gravity of the push plate, and improving the service life of the sealing sleeve.

[0018] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, this article specifically cites preferred embodiments and provides detailed descriptions as follows in conjunction with the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A three-dimensional diagram of a waste biomass recycling carbonization furnace provided in an embodiment of the present disclosure; Figure 2 A cross-sectional view of a lifting door provided in an embodiment of the present disclosure; Figure 3 An exploded schematic diagram of a lifting door provided in an embodiment of the present disclosure; Figure 4 A schematic diagram of a closed state of a carbonization furnace for recycling waste biomass provided in an embodiment of the present disclosure.

[0022] In the figure: 1. Furnace body; 2. lift door; 21. partition; 22. push plate; 221. sliding part; 222. through hole; 223. valve; 224. sliding rod; 225. solenoid valve; 226. pressure valve; 227. valve plate; 23. sealing sleeve; 231. higher end; 232. lower end; 24. support part; 241. cylinder; 242. piston; 25. cavity; 26. sliding station; 3. Driving mechanism; 31. Driving motor; 32. Driving wheel; 33. Transmission chain; 4. Support frame; 41. Rotating shaft; 42. Driven wheel; 43. Chain; 44. Counterweight; 5. Limiting station; 51. Limiting member; 52. Abutting plate; 6. Exhaust pipe. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Therefore, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, so that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. On the contrary, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0026] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0027] Research has found that a carbonization furnace is a device used to pyrolyze and carbonize organic matter at high temperatures. Its working principle is to increase the temperature to pyrolyze organic matter under oxygen-free or low-oxygen conditions to produce charcoal or other carbonized products.

[0028] In order to replace the materials in the furnace, the carbonization furnace is equipped with a lifting door, but the insulation effect of the lifting door is poor, which will reduce the working efficiency of the carbonization furnace. For this reason, an inert gas insulation layer is set in the lifting door to improve the insulation effect, and a push plate for buffering is set in the layer. The push plate side needs to be used with a sealing sleeve. If the lifting door is in the open state, the push plate will exert a force on the bottom of the sealing sleeve under the action of gravity, thereby aggravating the cracking of the bottom of the sealing sleeve, causing the inert gas in the insulation layer to leak, and the sealing sleeve needs to be replaced.

[0029] Therefore, it is urgent to design a waste biomass recycling carbonization furnace to avoid the technical problem of cracking of the bottom of the sealing sleeve due to the gravity of the push plate.

[0030] Reference Figure 1 and Figure 2Based on the above research, in order to solve the above technical problems, at least one embodiment provides a waste biomass recycling carbonization furnace, including: a furnace body 1, the furnace body 1 is suitable for carbonizing waste biomass materials, and is connected to an exhaust pipe 6, a lifting door 2 is arranged on one side of the furnace body 1, and a driving mechanism 3 is also arranged on the top of the furnace body 1, and the driving mechanism 3 is connected to the lifting door 2 to drive the lifting door 2 to rise or fall. A partition 21 is provided inside the lifting door 2, and a push plate 22 suitable for sliding up and down is arranged in the partition 21, and a cavity 25 is arranged in the partition 21 and above the push plate 22, and a sealing sleeve 23 is arranged on the side wall of the push plate 22 to be close to the side wall of the partition 21, so as to make the cavity 25 sealed, and an inert gas of a standard atmospheric pressure is contained in the cavity 25, and the inert gas is preferably helium to improve the thermal insulation effect of the lifting door 2. Two sliding stations 26 penetrating the partition 21 are provided at the bottom of the lifting door 2, and the push plate 22 also has a sliding portion 221 extending downward and protruding from the bottom of the lifting door 2. The sliding portion 221 includes two sliding rods 224 extending downward. The sliding rods 224 correspond one-to-one to the sliding stations 26, and the sliding rods 224 are suitable for being inserted into the sliding stations 26. When the inert gas in the cavity 25 is at a standard atmospheric pressure, the sliding rods 224 protrude from the bottom of the lifting door 2. A support portion 24 is provided at the bottom of the push plate 22. When the lifting door 2 descends until the sliding rod 224 is abutted by the platform below the lifting door 2, the lifting door 2 continues to descend, so that the sliding rod 224 slides upward along the sliding station 26, thereby pushing the push plate 22 to slide upward along the partition 21, compressing the inert gas in the cavity 25 to buffer the descent of the lifting door 2. When the lifting door 2 rises, the compressed inert gas and the gravity of the push plate 22 itself cause the push plate 22 to slide downward along the partition 21 until the push plate 22 is close to the bottom of the partition 21, and the support portion 24 abuts against the bottom of the partition 21 and supports the push plate 22, so that the sealing sleeve 23 remains in a relaxed state, thereby preventing the bottom of the sealing sleeve 23 from being cracked due to the gravity of the push plate 22. The above-mentioned components, by arranging a partition 21 inside the lifting door 2, improve the insulation effect of the lifting door 2 by the inert gas in the partition 21, by arranging a push plate 22 in the partition 21 to compress the gas above the push plate 22 for buffering, and by arranging a support part 24 at the bottom of the push plate 22 to support the push plate 22, avoid the bottom of the sealing sleeve 23 from being cracked due to the gravity of the push plate 22, and improve the service life of the sealing sleeve 23.

[0031] Reference Figure 2The structure of the support portion 24 is described in detail below. In some embodiments, a through hole 222 is opened in the middle of the push plate 22, and a valve 223 is arranged in the through hole 222. The support portion 24 includes a cylinder 241 connected to the through hole 222, and a piston 242 suitable for sliding downward is arranged in the cylinder 241. When the lifting door 2 descends to the point of being about to close, that is, when the end of the sliding rod 224 is about to completely enter the sliding station 26, the valve 223 automatically opens, and the compressed inert gas in the cavity 25 enters the cylinder 241. The piston 242 is pushed by the inert gas to slide downward and protrude from the bottom of the cylinder 241 and maintain this state. When the lifting door 2 rises, the compressed inert gas and the gravity of the push plate 22 cause the push plate 22 to slide downward along the partition 21 until the lifting door 2 rises to the maximum height. At this time, the push plate 22 is close to the bottom of the partition 21, and the protruding end of the piston 242 abuts against the bottom of the partition 21, so that the cylinder 241 supports the push plate 22, thereby achieving the effect of the support portion 24 supporting the push plate 22.

[0032] Reference Figure 3 The structure of the valve 223 is described in detail below. In some embodiments, the valve 223 includes a solenoid valve 225 and a pressure valve 226. The solenoid valve 225 includes a valve plate 227. The pressure valve 226 is arranged in the middle of the valve plate 227. When the end of the sliding rod 224 is about to completely enter the sliding station 26, the compressed inert gas in the cavity 25 makes the pressure of the pressure valve 226 reach a threshold value, and the pressure valve 226 automatically opens to realize the automatic opening of the valve 223. It is worth mentioning that when the lifting door 2 is about to descend, the solenoid valve 225 is opened so that the valve plate 227 no longer closes the through hole 222. At this time, the push plate 22 slides downward due to its own gravity, so that the piston 242 slides upward into the cylinder 241, and then the inert gas in the cylinder 241 flows back to the cavity 25. After the inert gas in the cylinder 241 flows back to the cavity 25, the solenoid valve 225 is closed again, and the lifting door 2 is driven to descend through the driving mechanism 3. It should be noted that before the lifting door 2 descends, the inert gas in the cylinder 241 is made to flow back to the cavity 25, which improves the buffering effect when the inert gas in the cavity 25 is compressed.

[0033] Reference Figure 2 The structure of the sealing sleeve 23 is described in detail below. In some embodiments, the sealing sleeve 23 is V-shaped and has a higher end 231 and a lower end 232. The lower end 232 is fixedly connected to the bottom surface of the edge of the push plate 22, and the higher end 231 is inserted from the gap between the push plate 22 and the cavity wall of the partition 21 to achieve the sealing of the cavity 25 above the push plate 22. Preferably, the sealing sleeve 23 is made of elastic material such as rubber.

[0034] Reference Figure 4The structure of the driving mechanism 3 is described in detail below. In some embodiments, the driving mechanism 3 includes a driving motor 31, a driving wheel 32 and a transmission chain 33. A support frame 4 is provided on the top of the furnace body 1 on one side of the lifting door 2. A rotating shaft 41 parallel to the furnace top is provided on the supporting frame 4. At least three driven wheels 42 are provided on the rotating shaft 41, and one of the driven wheels 42 is located outside the supporting frame 4. The transmission chain 33 connects the driving wheel 32 and the driven wheel 42 located outside the supporting frame 4. A chain 43 is connected to the top of the lifting door 2. The chain 43 is hung on the driven wheel 42 located inside the supporting frame 4, and the other end of the chain 43 is connected to a counterweight 44. The driving motor 31 rotates the driving wheel 32 to drive the driven wheel 42 located outside the supporting frame 4 to rotate through the transmission chain 33, so that the rotating shaft 41 rotates, and then the driven wheel 42 located inside the supporting frame 4 rotates, and then drives the chain 43 to lift or lower the lifting door 2, so as to realize the opening or closing of the lifting door 2.

[0035] Reference Figure 4 It is also worth mentioning that in some embodiments, the furnace body 1 is provided with a limit station 5 on the side wall of the lifting door 2, and the limit station 5 includes two limit members 51 protruding from the side wall and symmetrically arranged, and a contact plate 52 is arranged below the limit members 51. The lifting door 2 is located between the two limit members 51, and the lifting door 2 is in contact with the limit members 51. When the lifting door 2 is lowered to be almost closed, the sliding rod 224 is contacted by the contact plate 52, so that the sliding rod 224 slides upward. When the lifting door 2 is closed, the lifting door 2 is in contact with the side wall of the furnace body 1, and the bottom of the lifting door 2 is in contact with the contact plate 52.

[0036] In addition, if Figures 1 to 4As shown, at least one embodiment provides a working method of the carbonization furnace as described above, including: when replacing the material in the furnace body 1, the lifting door 2 is opened; after the material replacement is completed, the drive motor 31 is started to drive the lifting door 2 to descend; when the lifting door 2 descends to the point where the rod end of the sliding rod 224 contacts the abutment plate 52, the lifting door 2 continues to descend, so that the sliding rod 224 pushes the push plate 22 to slide upward, compressing the inert gas in the cavity 25 to buffer the descent of the lifting door 2; when the end of the sliding rod 224 is about to completely enter the sliding station 26, the pressure on the valve 223 reaches the threshold value, and the valve 223 automatically opens to allow the compressed inert gas in the cavity 25 to enter the cylinder 241, and the piston 242 slides downward to protrude from the bottom of the cylinder 241 and maintains this state; when the lifting door 2 descends to close, the drive motor 31 is turned off, and at this time the piston 242 always protrudes from the bottom of the cylinder 241, and the bottom of the lifting door 2 The push plate 22 is pressed against the abutment plate 52; when the material in the furnace body 1 needs to be replaced, the drive motor 31 is started again, the lifting door 2 rises and moves away from the abutment plate 52. At this time, the push plate 22 is pushed by the inert gas compressed in the cavity 25 to slide downward along the partition 21, and the sliding rod 224 protrudes from the bottom of the lifting door 2; when the lifting door 2 rises to the maximum height, the drive motor 31 is turned off. Since the push plate 22 has previously slid down, the protruding end of the piston 242 abuts against the bottom of the partition 21, so that the cylinder 241 supports the push plate 22, thereby keeping the sealing sleeve 23 in a relaxed state; after the material replacement is completed, the solenoid valve 225 is first opened so that the valve plate 227 no longer closes the through hole 222. At this time, the push plate 22 slides downward due to its own gravity, so that the piston 242 slides upward into the cylinder 241, thereby causing the inert gas in the cylinder 241 to flow back to the cavity 25, and then the solenoid valve 225 is closed, and the drive motor 31 is started to drive the lifting door 2 to descend.

[0037] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used in this document unless explicitly indicated above. Therefore, without departing from the teachings of the example embodiments, the first element, component, region, layer or section discussed above may be referred to as a second element, component, region, layer or section.

[0039] Spatially relative terms, such as "inside", "outside", "below", "below", "down", "above", "on", etc., may be used herein to facilitate description of the relationship of one element or feature to another element or feature as illustrated in the figure. In addition to the orientation depicted in the figure, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is turned over, the elements described as "below" or "below" other elements or features will be oriented to be "above" other elements or features. Therefore, the example term "below" can cover the orientation above and below. The device can be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0040] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A waste biomass recycling carbonization furnace, characterized in that: include: A furnace body (1) is provided with a lifting door (2) on one side thereof, and a driving mechanism (3) is also provided on the top of the furnace body (1), wherein the driving mechanism (3) is in driving connection with the lifting door (2); The lifting door (2) is provided with a partition (21) inside, a push plate (22) adapted to slide up and down is provided inside the partition (21), a sealing sleeve (23) is provided on the side wall of the push plate (22) to closely fit the side wall of the partition (21), the push plate (22) further comprises a sliding portion (221) extending downward and protruding from the bottom of the lifting door (2), and a supporting portion (24) is provided at the bottom of the push plate (22); A cavity (25) is provided in the partition (21) and above the push plate (22), wherein the cavity (25) contains an inert gas at a standard atmospheric pressure; When the lifting door (2) is lowered to the point of being about to close, the sliding portion (221) is abutted against the closing portion of the door bottom, so that the sliding portion (221) pushes the push plate (22) to slide upward along the partition (21), compressing the inert gas in the cavity (25) for buffering; and The lifting door (2) rises, and the compressed inert gas pushes the push plate (22) to slide downward along the partition (21) to near the bottom of the partition (21). The support portion (24) abuts against the bottom of the partition (21) and supports the push plate (22), so that the sealing sleeve (23) remains in a relaxed state.

2. The waste biomass recycling carbonization furnace according to claim 1, characterized in that: A through hole (222) is provided in the middle of the push plate (22), and a valve (223) is provided in the through hole (222); The support portion (24) comprises a cylinder (241) in communication with the through hole (222), wherein a piston (242) suitable for sliding downward is provided in the cylinder (241); When the lifting door (2) is lowered to the point where it is about to close, the valve (223) is opened, the compressed inert gas in the cavity (25) enters the cylinder (241), and the piston (242) slides downward to protrude from the bottom of the cylinder (241) and maintains this state; and After the lifting door (2) rises to the maximum height, the protruding end of the piston (242) abuts against the bottom of the partition (21), so that the cylinder (241) supports the push plate (22) and the sealing sleeve (23) remains in a relaxed state.

3. The waste biomass recycling carbonization furnace according to claim 2, characterized in that: The bottom of the lifting door (2) is provided with a sliding station (26) penetrating the partition (21); The sliding portion (221) comprises two sliding rods (224) extending downwards, wherein the sliding rods (224) are inserted into the sliding station (26) and protrude from the bottom of the lifting door (2); After the lifting door (2) descends to the point where the rod end of the sliding rod (224) contacts the door bottom and closes, the lifting door (2) continues to descend, so that the sliding rod (224) pushes the push plate (22) to slide upward, compressing the inert gas in the cavity (25) to cushion the descent of the lifting door (2); and When the end of the sliding rod (224) is about to completely enter the sliding station (26), the pressure on the valve (223) reaches a threshold value, and the valve (223) automatically opens to allow the compressed inert gas in the cavity (25) to enter the cylinder (241).

4. The waste biomass recycling carbonization furnace according to claim 3, characterized in that: The valve (223) comprises a solenoid valve (225) and a pressure valve (226); The solenoid valve (225) comprises a valve plate (227), and the pressure valve (226) is arranged in the middle of the valve plate (227); When the end of the sliding rod (224) is about to completely enter the sliding station (26), the pressure on the pressure valve (226) reaches a threshold value, and the pressure valve (226) automatically opens to achieve automatic opening of the valve (223); and When the lifting door (2) is about to descend, the solenoid valve (225) is opened so that the valve plate (227) no longer closes the through hole (222). At this time, the push plate (22) slides downward due to its own gravity, so that the piston (242) slides upward into the cylinder (241), thereby causing the inert gas in the cylinder (241) to flow back to the cavity (25), and then the solenoid valve (225) is closed.

5. The waste biomass recycling carbonization furnace according to claim 1, characterized in that: The sealing sleeve (23) is V-shaped and has a higher end (231) and a lower end (232); The lower end (232) is fixedly connected to the bottom surface of the edge of the push plate (22); The higher end (231) is inserted from the gap between the push plate (22) and the cavity wall of the partition (21) to achieve sealing of the cavity (25) above the push plate (22).

6. The waste biomass recycling carbonization furnace according to claim 1, characterized in that: The driving mechanism (3) comprises a driving motor (31), a driving wheel (32) and a transmission chain (33); A support frame (4) is arranged on the top of one side of the furnace body (1) on which the lifting door (2) is arranged, a rotating shaft (41) parallel to the furnace top is arranged on the support frame (4), at least three driven wheels (42) are arranged on the rotating shaft (41), and one of the driven wheels (42) is located outside the support frame (4); The transmission chain (33) connects the driving wheel (32) and the driven wheel (42) located outside the support frame (4); The top of the lifting door (2) is connected to a chain (43), the chain (43) is hung on a driven wheel (42) located inside the support frame (4), and the other end of the chain (43) is connected to a counterweight (44); and The driving motor (31) is suitable for driving the driving wheel (32) to rotate, so as to drive the driven wheel (42) located outside the support frame (4) to rotate through the transmission chain (33), so as to rotate the rotating shaft (41), thereby causing the driven wheel (42) located inside the support frame (4) to rotate, and then drive the chain (43) to lift or lower the lifting door (2).

7. The waste biomass recycling carbonization furnace according to claim 6, characterized in that: The furnace body (1) is provided with a lifting door (2) and a limiting position (5) is provided on the side wall thereof; The limiting station (5) comprises two limiting members (51) protruding from the side wall and symmetrically arranged, and an abutment plate (52) is arranged below the limiting members (51); The lifting door (2) is located between the two limiting members (51), and the lifting door (2) is in close contact with the limiting members (51); and After the lifting door (2) is closed, the lifting door (2) is in contact with the side wall of the furnace body (1), and the bottom of the lifting door (2) is in contact with the abutment plate (52).

8. A waste biomass recycling carbonization furnace, characterized in that: include: A furnace body (1) is provided with a limit position (5) on one side thereof, wherein the limit position (5) comprises two limit members (51) protruding from the side wall and symmetrically arranged; A lifting door (2), which is also arranged on one side of the furnace body (1) and is located between the two limiting members (51), and the lifting door (2) is suitable for lifting and lowering along the limiting position (5); The lifting door (2) has a partition (21) inside, a push plate (22) adapted to slide up and down is arranged inside the partition (21), a sealing sleeve (23) is arranged on the side wall of the push plate (22) to closely fit the side wall of the partition (21), and a support portion (24) is arranged on the bottom of the push plate (22); and A cavity (25) is provided in the partition (21) and above the push plate (22), wherein the cavity (25) contains an inert gas at a standard atmospheric pressure to improve the heat preservation effect of the lifting door (2).

9. The waste biomass recycling carbonization furnace according to claim 8, characterized in that: The bottom of the lifting door (2) is provided with a sliding station (26) penetrating the partition (21); The push plate (22) has a sliding portion (221) extending downward, the sliding portion (221) includes two sliding rods (224) extending downward, the sliding rods (224) are inserted into the sliding station (26) and protrude from the bottom of the lifting door (2); An abutment plate (52) is provided below the limiting member (51); wherein After the lifting door (2) descends until the rod end of the sliding rod (224) contacts the abutment plate (52), the lifting door (2) continues to descend, so that the sliding rod (224) pushes the push plate (22) to slide upward, compressing the inert gas in the cavity (25) to cushion the descent of the lifting door (2); and The lifting door (2) rises, and the compressed inert gas pushes the push plate (22) to slide downward along the partition (21) to near the bottom of the partition (21). The support portion (24) abuts against the bottom of the partition (21) and supports the push plate (22), so that the sealing sleeve (23) remains in a relaxed state.

10. A method for operating a carbonization furnace according to any one of claims 1 to 9, characterized in that: include: When the lifting door (2) is lowered to the point of being about to close, the sliding portion (221) is abutted against the closing portion of the door bottom, so that the sliding portion (221) pushes the push plate (22) to slide upward along the partition (21), compressing the inert gas in the cavity (25) for buffering; and When the lifting door (2) rises, the compressed inert gas pushes the push plate (22) to slide downward along the partition (21) to near the bottom of the partition (21), and the support portion (24) abuts against the bottom of the partition (21) and supports the push plate (22), so that the sealing sleeve (23) remains in a relaxed state.

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