Waste biomass recycling carbonization furnace and working method thereof

Abstract

The present invention belongs to the technical field of incineration of waste or low-grade fuel, and specifically relates to a waste biomass recycling and carbonization furnace and a working method thereof. The device comprises: a furnace body, a lifting door is provided on one side of the lifting door, a partition is provided inside the lifting door, a push plate suitable for sliding up and down is provided in the partition, a sealing sleeve is provided on the side wall of the push plate to tightly fit the side wall of the partition, and a support portion is provided at the bottom of the push plate, a cavity is provided in the partition and above the push plate, and an inert gas at a standard atmospheric pressure is contained in the cavity. The waste biomass recycling and carbonization furnace and the working method thereof improve the thermal insulation effect of the lifting door by using the inert gas in the partition, and at the same time, a push plate is provided in the partition to compress the gas above the push plate for buffering, and a support portion is provided 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.

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 equipment 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 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.

[0003] Carbonization furnaces are equipped with a lift door to facilitate replacement of materials. However, the lift door's poor insulation performance reduces the efficiency of the carbonization furnace. To address this, an inert gas insulation barrier is installed within the lift door to improve insulation. This barrier also houses a push plate for buffering. This push plate requires a sealant. If the lift door is open, the push plate, under the influence of gravity, exerts a force on the bottom of the sealant, exacerbating cracks at the bottom of the sealant, leading to leakage of the inert gas within the insulation barrier and the need to replace the sealant.

[0004] Therefore, it is urgent to design a waste biomass recycling carbonization furnace to avoid the technical problem of the bottom of the sealing sleeve being cracked by 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 provided on one side of the furnace body, and a driving mechanism provided on the top of the furnace body, the driving mechanism being in transmission connection with the lifting door;

[0008] The lifting door has a partition layer inside, a push plate adapted to slide up and down is provided in the partition layer, a sealing sleeve is provided on the side wall of the push plate to closely fit the side wall of the partition layer, the push plate further has a sliding portion extending downward and protruding from the bottom of the lifting door, and a support portion is provided at the bottom of the push plate;

[0009] A cavity is provided in the partition and above the push plate, and the cavity contains an inert gas at a standard atmospheric pressure;

[0010] When the lifting door is lowered to the point of closing, the sliding portion is abutted against the closed portion of the door bottom, so that the sliding portion pushes the push plate to slide upward along the partition, compressing the inert gas in the cavity to provide a buffer; and

[0011] When the lifting door rises and the compressed inert gas pushes the push plate to slide downward along the barrier layer to near the bottom of the barrier layer, the support portion abuts against the bottom of the barrier layer and supports the push plate, so that the sealing sleeve remains in a relaxed state.

[0012] In an optional embodiment, a through hole is opened in the middle of the push plate, and a valve is provided in the through hole;

[0013] The support portion includes a cylinder connected to the through hole, and a piston suitable for sliding downward is provided in the cylinder; wherein

[0014] When the lifting door is about to be 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

[0015] 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.

[0016] In an optional embodiment, a sliding station penetrating the partition is provided at the bottom of the lifting door;

[0017] The sliding portion includes two downwardly extending sliding rods, the sliding rods being inserted into the sliding station and protruding from the bottom of the lifting door;

[0018] After the lift door descends to the point where the end of the sliding rod contacts the door bottom and closes, the lift door continues to descend, so that the sliding rod pushes the push plate to slide upward, compressing the inert gas in the cavity to cushion the descent of the lift door; and

[0019] 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.

[0020] In an optional embodiment, the valve includes a solenoid valve and a pressure valve;

[0021] The solenoid valve includes a valve plate, and the pressure valve is arranged in the middle of the valve plate;

[0022] 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 achieve automatic opening of the valve; and

[0023] When the lifting door is about to descend, the solenoid valve is opened so that the valve plate no longer blocks 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 causing the inert gas in the cylinder to flow back to the cavity, and then the solenoid valve is closed.

[0024] In an optional embodiment, the sealing sleeve is V-shaped and has a higher end and a lower end;

[0025] The lower end is fixedly connected to the bottom surface of the edge of the push plate;

[0026] The higher end is inserted from the gap between the push plate and the barrier cavity wall to achieve sealing of the cavity above the push plate.

[0027] In an optional embodiment, the driving mechanism includes a driving motor, a driving wheel and a transmission chain;

[0028] A support frame is provided on the top of the furnace body on the side where the lifting door is provided, and a rotating shaft parallel to the furnace top is provided on the support frame, and at least three driven wheels are provided on the rotating shaft, and one of the driven wheels is located outside the support frame;

[0029] The transmission chain connects the driving wheel and the driven wheel located outside the support frame;

[0030] 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 the other end of the chain is connected to a counterweight block; and

[0031] The drive motor is suitable for driving the drive 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 lift door.

[0032] In an optional embodiment, a limit position is provided on the side wall of the furnace body where the lifting door is provided;

[0033] The limiting station includes two limiting members protruding from the side wall and symmetrically arranged, and an abutment plate is arranged below the limiting members;

[0034] The lifting door is located between the two limiting members, and the lifting door is in contact with the limiting members; and

[0035] 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.

[0036] 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 station, the limit station comprising two limit members protruding from the side wall and symmetrically arranged;

[0037] A lifting door is also provided 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;

[0038] A partition is provided inside the lifting door, a push plate adapted to slide up and down is provided inside the partition, a sealing sleeve is provided on the side wall of the push plate to closely adhere to the side wall of the partition, and a support portion is provided on the bottom of the push plate; and

[0039] A cavity is provided in the partition layer and above the push plate. The cavity contains an inert gas at a standard atmospheric pressure to improve the heat preservation effect of the lifting door.

[0040] In an optional embodiment, a sliding station penetrating the partition is provided at the bottom of the lifting door;

[0041] 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;

[0042] A contact plate is provided below the limiting member;

[0043] After the lift door descends until the end of the sliding rod contacts the abutment plate, the lift door continues to descend, so that the sliding rod pushes the push plate to slide upward, compressing the inert gas in the cavity to cushion the descent of the lift door; and

[0044] When the lifting door rises and the compressed inert gas pushes the push plate to slide downward along the barrier layer to near the bottom of the barrier layer, the support portion abuts against the bottom of the barrier layer and supports the push plate, so that the sealing sleeve remains in a relaxed state.

[0045] In a third aspect, an embodiment of the present disclosure further provides a method for operating the carbonization furnace as described above, comprising: when the lifting door is lowered to a position about to be closed, the sliding portion is abutted against the closed portion of the door bottom, so that the sliding portion pushes the push plate to slide upward along the partition, thereby compressing the inert gas in the cavity to provide a buffer; and

[0046] 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 portion abuts against the bottom of the partition and supports the push plate to keep the sealing sleeve in a relaxed state.

[0047] 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 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 the bottom of the sealing sleeve from cracking due to the gravity of the push plate, and improving the service life of the sealing sleeve.

[0048] Other features and advantages of the present invention will be described in the following description, and in part will 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 drawings.

[0049] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited herein and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0051] Figure 1 A three-dimensional diagram of a carbonization furnace for recycling waste biomass provided in an embodiment of the present disclosure;

[0052] Figure 2 A cross-sectional view of a lift door provided in an embodiment of the present disclosure;

[0053] Figure 3 An exploded schematic diagram of a lift door provided in an embodiment of the present disclosure;

[0054] 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.

[0055] In the picture:

[0056] 1. Furnace body;

[0057] 2. Lifting door; 21. Interlayer; 22. Push plate; 221. Sliding portion; 222. Through hole; 223. Valve; 224. Sliding rod; 225. Solenoid valve; 226. Pressure valve; 227. Valve plate; 23. Sealing sleeve; 231. Upper end; 232. Lower end; 24. Support portion; 241. Cylinder; 242. Piston; 25. Cavity; 26. Sliding station;

[0058] 3. Driving mechanism; 31. Driving motor; 32. Driving wheel; 33. Transmission chain;

[0059] 4. Support frame; 41. Rotating shaft; 42. Driven wheel; 43. Chain; 44. Counterweight;

[0060] 5. Limiting station; 51. Limiting member; 52. Abutting plate;

[0061] 6. Exhaust pipe. DETAILED DESCRIPTION

[0062] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0063] 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. Thus, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, such 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 advantageous over other implementations, aspects, or designs. Instead, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0064] 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, it does not require further definition or explanation in subsequent drawings.

[0065] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0066] 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.

[0067] Carbonization furnaces are equipped with a lift door to facilitate replacement of materials. However, the lift door's poor insulation performance reduces the efficiency of the carbonization furnace. To address this, an inert gas insulation barrier is installed within the lift door to improve insulation. This barrier also houses a push plate for buffering. This push plate requires a sealant. If the lift door is open, the push plate, under the influence of gravity, exerts a force on the bottom of the sealant, exacerbating cracks at the bottom of the sealant, leading to leakage of the inert gas within the insulation barrier and the need to replace the sealant.

[0068] Therefore, it is urgent to design a waste biomass recycling carbonization furnace to avoid the technical problem of the bottom of the sealing sleeve being cracked by the gravity of the push plate.

[0069] Reference Figure 1 and Figure 2 Based on the above research, in order to solve the above technical problems, at least one embodiment provides a waste biomass recycling carbonization furnace, comprising: a furnace body 1, wherein the furnace body 1 is suitable for carbonizing waste biomass materials and is connected to an exhaust pipe 6. A lifting door 2 is provided on one side of the furnace body 1, and a driving mechanism 3 is also provided on the top of the furnace body 1. The driving mechanism 3 is in transmission connection with the lifting door 2 to drive the lifting door 2 up or down. A partition 21 is provided inside the lifting door 2, and a push plate 22 suitable for sliding up and down is provided inside the partition 21. A cavity 25 is provided inside the partition 21 and above the push plate 22. A sealing sleeve 23 is provided on the side wall of the push plate 22 to tightly adhere to the side wall of the partition 21, thereby sealing the cavity 25. The cavity 25 contains an inert gas at a standard atmospheric pressure. The inert gas is preferably helium to improve the thermal insulation effect of the lifting door 2. Two sliding stations 26 that pass through the partition 21 are provided at the bottom of the lifting door 2, and the push plate 22 also has a sliding portion 221 that extends downward and protrudes from the bottom of the lifting door 2. The sliding portion 221 includes two downwardly extending sliding rods 224. 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 cushion 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 approaches the bottom of the partition 21. The support portion 24 abuts 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 cracking due to the gravity of the push plate 22. The above-mentioned components, by providing a partition layer 21 inside the lifting door 2, use the inert gas in the partition layer 21 to improve the thermal insulation effect of the lifting door 2, by providing a push plate 22 in the partition layer 21 to compress the gas above the push plate 22 for buffering, and by providing a support portion 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 by the gravity of the push plate 22, and improve the service life of the sealing sleeve 23.

[0070] 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 provided 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 provided in the cylinder 241. When the lifting door 2 descends to the point of being closed, that is, when the end of the sliding rod 224 is about to completely enter the sliding station 26, the valve 223 opens automatically, 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 itself cause the push plate 22 to slide downward along the partition 21 until the lifting door 2 rises to its 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 part 24 supporting the push plate 22.

[0071] 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 causes the pressure of the pressure valve 226 to 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 returned to the cavity 25, which improves the buffering effect when the inert gas in the cavity 25 is compressed.

[0072] 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 sealing of the cavity 25 above the push plate 22. Preferably, the sealing sleeve 23 is made of elastic material such as rubber.

[0073] Reference Figure 4The structure of the drive mechanism 3 is described in detail below. In some embodiments, the drive mechanism 3 includes a drive motor 31, a drive wheel 32, and a transmission chain 33. A support frame 4 is provided on the top of the furnace body 1 on the side where the lift door 2 is located. The support frame 4 is provided with a rotating shaft 41 parallel to the furnace top. The rotating shaft 41 is provided with at least three driven wheels 42, one of which is located outside the support frame 4. The transmission chain 33 connects the drive wheel 32 and the driven wheels 42 located outside the support frame 4. A chain 43 is connected to the top of the lift door 2. The chain 43 is hung on the driven wheel 42 located inside the support frame 4, and the other end of the chain 43 is connected to a counterweight 44. The drive motor 31 rotates the drive wheel 32, which drives the driven wheel 42 located outside the support frame 4 to rotate via the transmission chain 33. This rotates the rotating shaft 41, which in turn rotates the driven wheel 42 located inside the support frame 4, and drives the chain 43 to lift or lower the lift door 2, thereby opening or closing the lift door 2.

[0074] Reference Figure 4 It is also worth mentioning that in some embodiments, a limit station 5 is provided on the side wall of the furnace body 1 where the lift door 2 is located. The limit station 5 includes two symmetrically arranged limit members 51 protruding from the side wall. An abutment plate 52 is provided below the limit members 51. The lift door 2 is located between the two limit members 51 and abuts against the limit members 51. When the lift door 2 is lowered to a point where it is about to close, the sliding rod 224 is abutted by the abutment plate 52, causing the sliding rod 224 to slide upward. When the lift door 2 is closed, the lift door 2 abuts against the side wall of the furnace body 1, and the bottom of the lift door 2 abuts against the abutment plate 52.

[0075] 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 the material in the furnace body 1 is replaced, the lifting door 2 is opened; after the material is replaced, 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 cushion 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 maintain 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 compressed inert gas 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 opened first to prevent the valve plate 227 from closing 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.

[0076] In the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0077] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are 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 limiting the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used herein unless expressly 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.

[0078] Spatially relative terms, such as "inside," "outside," "below," "beneath," "down," "above," "on," etc., may be used herein to describe the relationship of one element or feature to another element or feature as illustrated in the figures. In addition to the orientations depicted in the figures, spatially relative terms may be intended to encompass different orientations of the device in use or operation. For example, if the device in the figures is flipped, an element described as being "below" or "below" other elements or features will be oriented to be "above" the other elements or features. Thus, the example term "below" may encompass both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0079] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A carbonization furnace for recycling waste biomass, 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 transmission connection with the lifting door (2); The lifting door (2) is provided with a partition (21) inside, and a push plate (22) suitable for sliding up and down is provided in the partition (21), and a sealing sleeve (23) is provided on the side wall of the push plate (22) to be closely attached to the side wall of the partition (21), and the push plate (22) also has 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 closed, 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) to provide a buffer; and When 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) to keep the sealing sleeve (23) in a relaxed state; 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) includes a cylinder (241) in communication with the through hole (222), and a piston (242) adapted to slide downward is provided in the cylinder (241); wherein When the lifting door (2) is lowered to the point of being closed, 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; The bottom of the lifting door (2) is provided with a sliding station (26) that passes through the partition (21); The sliding portion (221) includes two sliding rods (224) extending downward, 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 until the 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); The valve (223) includes a solenoid valve (225) and a pressure valve (226); The solenoid valve (225) includes a valve plate (227), and the pressure valve (226) is arranged in the middle of the valve plate (227); wherein 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.

2. 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 into 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).

3. The waste biomass recycling carbonization furnace according to claim 1, characterized in that: 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 which the lifting door (2) is provided. A rotating shaft (41) parallel to the furnace top is provided on the support 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 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 driving the chain (43) to lift or lower the lifting door (2).

4. The waste biomass recycling carbonization furnace according to claim 3, 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; The limiting station (5) comprises two limiting members (51) protruding from the side wall and symmetrically arranged, and an abutting 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 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).

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

6. The waste biomass recycling carbonization furnace according to claim 5, characterized in that: The bottom of the lifting door (2) is provided with a sliding station (26) that passes through the partition (21); The push plate (22) has a downwardly extending sliding portion (221), the sliding portion (221) includes two downwardly extending sliding rods (224), 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 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 When 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.

7. A method for operating the carbonization furnace according to any one of claims 1 to 6, 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) to provide a buffer; 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 the bottom of the partition (21) and supports the push plate (22) to keep the sealing sleeve (23) in a relaxed state.

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