A raw material conveying and adding equipment for preparing fuel by biomass pyrolysis method

Abstract

The present invention discloses a raw material conveying and adding equipment for preparing fuel by biomass pyrolysis method, and relates to the technical field of preparing fuel by biomass pyrolysis method, including a pyrolysis reactor, one end of which is fixedly connected to a gasifier, and also including an adding mechanism and an air intake mechanism. The present invention sets the adding mechanism and the air intake mechanism, and the motor drives the movable seat to slide in the adding groove. When the movable seat moves up, the movable seat contacts the shielding block, and the shielding block is pushed out of the adding groove. The movable seat moves into the inner cavity of the placement groove, and the raw material enters the movable seat; when the movable seat moves down, the movable seat moves into the inner cavity of the pyrolysis reactor, the cross plate contacts the fixed frame, the baffle rotates, and the raw material falls into the pyrolysis reactor, which can prevent the inner cavity of the pyrolysis reactor from directly contacting the outside air, and prevent the maximum isolation of the outside air by inputting the protective gas, so as to avoid oxygen from entering the pyrolysis reactor during the raw material conveying process, which affects the subsequent pyrolysis.

Description

Technical Field

[0001] The invention relates to the technical field of preparing fuel by biomass pyrolysis method, in particular to a raw material conveying and adding device for preparing fuel by biomass pyrolysis method. Background Art

[0002] Biomass pyrolysis usually refers to the process in which biomass is heated to produce coke, condensable liquid and gas products in an oxygen-free or low-oxygen environment. It is an important form of biomass energy utilization. This technology can convert biomass, mainly wood chips, garbage and other wastes, into high-quality petroleum substitute fuels that are easy to store, easy to transport, high in energy density and easy to use through continuous processes and factory-based production methods.

[0003] The two-step pyrolysis and gasification process of biomass is a new type of gasification method specially developed for the characteristics of biomass raw materials, such as a wide variety, high moisture content, and low calorific value. Through this process, the biomass raw materials entering the gasifier can be preheated by 500-600 degrees Celsius through the pyrolysis reactor to remove the moisture and volatile components (tar and other substances) in the biomass raw materials, so that they can become semi-carbonized during the gasification process, increase the reaction efficiency and improve the gas quality.

[0004] When carrying out biomass pyrolysis, the raw materials need to be transported to the pyrolysis reactor. However, during the process of transporting the raw materials, a large amount of air is easily mixed into the raw materials and enters the pyrolysis reactor, causing the oxygen content in the pyrolysis reactor to increase, which affects the subsequent pyrolysis. In order to avoid oxygen from entering the pyrolysis reactor through the feed port during the raw material transportation process, a raw material transportation and addition device for preparing fuel by biomass pyrolysis is provided. Summary of the invention

[0005] The purpose of the present invention is to provide a raw material conveying and adding device for preparing fuel by biomass pyrolysis method in order to achieve the purpose of preventing oxygen from entering the pyrolysis reactor through the feed inlet during the raw material conveying process.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a raw material conveying and adding equipment for preparing fuel by biomass pyrolysis method, comprising a pyrolysis reactor, one end of the pyrolysis reactor is fixedly connected to a gasifier, the outer wall of the gasifier is fixedly connected to an air inlet pipe, a fan is installed on the outer wall of the air inlet pipe, the outer wall of the gasifier is located above the air inlet pipe and is fixedly connected to a steam pipe, one end of the steam pipe is connected to the air inlet pipe, the top of the pyrolysis reactor is fixedly connected to an adding box and an exhaust pipe, the exhaust pipe is located on one side of the adding box, and the adding box adds raw materials to the pyrolysis reactor through an adding mechanism;

[0007] The adding mechanism includes a placement groove, which is opened at the top of the adding box, and an adding groove is opened at the bottom of the placing groove, and the adding groove is connected to the inner cavity of the pyrolysis reactor. The inner wall of the adding groove is slidably connected with a movable seat, and the outer wall of one end of the movable seat is fixedly connected with a movable block. A movable groove is opened on the inner wall of one end of the adding groove, and the interior of the movable groove is rotatably connected with a screw rod that runs through the movable block, and the top of the screw rod is fixedly connected with a first bevel gear, the interior of the adding box is located on the outer wall of the first bevel gear and is rotatably connected with a second bevel gear, and one end of the second bevel gear is fixedly connected with a mounting shaft, and a motor is installed on the outer wall of the adding box, and the mounting shaft is connected to the output end of the motor. The adding box inputs protective gas into the placement groove through an air intake mechanism.

[0008] As a further scheme of the present invention: the adding mechanism also includes a support seat, the support seat is fixedly connected to the inner wall of the placement groove, the bottom end of the support seat is fixedly connected to a fixed seat, the inner wall of the fixed seat is slidably connected to a blocking block, the blocking block extends to the inner cavity of the adding groove, a first spring is connected between the blocking block and the support seat, vertical grooves are symmetrically opened on both sides of the interior of the adding groove, the inner cavity of the pyrolysis reactor is located below the vertical groove and is fixedly connected to a fixing frame, feeding grooves are opened on both sides of the inner wall of the movable seat, the bottom end of the movable seat is symmetrically rotatably connected to a baffle, the baffle is rotatably connected to the movable seat through a connecting shaft, a torsion spring is connected to the outer wall of the baffle and the movable seat located on the connecting shaft, and a cross plate is fixedly connected to the outer wall of the baffle.

[0009] As a further scheme of the present invention: the air intake mechanism includes an air intake pipe, which is fixedly connected to one side of the adding box, the air intake pipe is connected to the inner cavity of the support seat, the inner wall of the support seat is slidably connected with a partition plate up and down, a second spring is connected between the partition plate and the support seat, the bottom end of the support seat is symmetrically fixedly connected with connecting ports on both sides, the outer wall of the partition is fixedly connected with a connecting tube, the connecting tube is slidably connected to the inner wall of the connecting port, the upper end of the connecting tube is open and the bottom is closed, and an air outlet is provided at the closed end, a circular hole is provided at the top of the inner wall of the fixed seat, a plug is fixedly connected to the top of the movable seat, a slot is provided at the bottom end of the blocking block, a round rod is fixedly connected to the top of the blocking block, a connecting groove extending to the inside of the round rod is provided at the top of the slot, and a horizontally arranged connecting groove is provided at the top of the connecting groove.

[0010] As a further solution of the present invention: the inner wall of the fixing seat is fitted with the outer wall of the shielding block, and the outer wall of the shielding block is fitted with the inner wall of the adding groove.

[0011] As a further solution of the present invention: the inner wall of the adding groove fits with the outer wall of the movable seat, and the inner wall of the movable groove fits with the outer wall of the movable block.

[0012] As a further solution of the present invention: a threaded hole is formed on the outer wall of the movable block, the threaded hole matches the screw rod, and the second bevel gear is meshed with the first bevel gear.

[0013] As a further solution of the present invention: the outer wall of the horizontal plate is in contact with the inner wall of the vertical groove, and the outer wall of the fixing frame is L-shaped.

[0014] As a further solution of the present invention: the inner wall of the connecting port is in contact with the outer wall of the connecting tube.

[0015] As a further solution of the present invention: the outer wall of the insert tube is in contact with the inner wall of the slot, and the insert tube is communicated with the inner cavity of the movable seat.

[0016] As a further solution of the present invention: the inner wall of the circular hole fits with the outer wall of the round rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] By setting up the adding mechanism and the air intake mechanism, the motor drives the movable seat to slide in the adding groove. When the movable seat moves upward, the movable seat contacts the blocking block to push the blocking block out of the adding groove, and the movable seat moves into the inner cavity of the placement groove, and the raw material enters the movable seat; when the movable seat moves downward, the movable seat moves into the inner cavity of the pyrolysis reactor, the cross plate contacts the fixed frame, the baffle rotates, and the raw material falls into the pyrolysis reactor, which can prevent the inner cavity of the pyrolysis reactor from directly contacting the outside air. By inputting protective gas, the outside air is isolated to the maximum extent, and oxygen is prevented from entering the pyrolysis reactor during the raw material transportation process, which affects the subsequent pyrolysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a schematic diagram of the internal structure of the adding box of the present invention;

[0021] Figure 3 It is a schematic diagram of the installation structure of the movable seat of the present invention;

[0022] Figure 4 It is a schematic diagram of the installation structure of the shielding block of the present invention;

[0023] Figure 5 It is a structural schematic diagram of the fixing frame of the present invention;

[0024] Figure 6 It is a schematic diagram of the internal structure of the movable seat of the present invention;

[0025] Figure 7 It is a schematic diagram of the internal structure of the shielding block of the present invention;

[0026] Figure 8 It is a schematic diagram of the internal structure of the connecting tube of the present invention.

[0027] In the figure: 1, pyrolysis reactor; 2, gasifier; 3, adding box; 4, adding mechanism; 401, placement slot; 402, adding slot; 403, movable seat; 404, movable block; 405, movable slot; 406, screw rod; 407, first bevel gear; 408, second bevel gear; 409, mounting shaft; 410, motor; 411, support seat; 412, fixed seat; 413, shielding block; 414, first spring; 415, vertical slot; 416, fixed frame ; 417, feed trough; 418, baffle; 419, connecting shaft; 420, torsion spring; 421, cross plate; 5, air intake mechanism; 501, air intake pipe; 502, partition; 503, second spring; 504, connecting port; 505, connecting tube; 506, air outlet; 507, round hole; 508, insert tube; 509, slot; 510, round rod; 511, connecting groove; 512, connecting groove; 6, air inlet pipe; 7, fan; 8, steam pipe; 9, exhaust pipe. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" 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 directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0030] See also Figures 1 to 8 In an embodiment of the present invention, a raw material conveying and adding equipment for preparing fuel by biomass pyrolysis method includes a pyrolysis reactor 1, one end of the pyrolysis reactor 1 is fixedly connected to a gasifier 2, the outer wall of the gasifier 2 is fixedly connected to an air inlet pipe 6, the outer wall of the air inlet pipe 6 is installed with a fan 7, the outer wall of the gasifier 2 is located above the air inlet pipe 6 and is fixedly connected to a steam pipe 8, one end of the steam pipe 8 is connected to the air inlet pipe 6, the top of the pyrolysis reactor 1 is fixedly connected to an adding box 3 and an exhaust pipe 9, the exhaust pipe 9 is located on one side of the adding box 3, and the adding box 3 adds raw materials to the pyrolysis reactor 1 through an adding mechanism 4.

[0031] The adding mechanism 4 includes a placement groove 401, which is opened at the top of the adding box 3, and an adding groove 402 is opened at the bottom of the placement groove 401, and the adding groove 402 is connected to the inner cavity of the pyrolysis reactor 1. The inner wall of the adding groove 402 is slidably connected with a movable seat 403, and the outer wall of one end of the movable seat 403 is fixedly connected with a movable block 404, and the inner wall of one end of the adding groove 402 is opened with a movable groove 405, and the inside of the movable groove 405 is rotatably connected with a screw rod 406 that runs through the movable block 404, and the top of the screw rod 406 is fixedly connected with a first bevel gear 407, and the inner wall of the adding box 3 located at the first bevel gear 407 is rotatably connected with a second bevel gear 408, and one end of the second bevel gear 408 is fixedly connected with a mounting shaft 409, and the outer wall of the adding box 3 is installed with a motor 410, and the mounting shaft 409 is connected to the output end of the motor 410, and the adding box 3 inputs protective gas into the placement groove 401 through the air intake mechanism 5.

[0032] The adding mechanism 4 also includes a support seat 411, which is fixedly connected to the inner wall of the placement groove 401, and a fixed seat 412 is fixedly connected to the bottom end of the support seat 411. A blocking block 413 is slidably connected to the inner wall of the fixed seat 412, and the blocking block 413 extends to the inner cavity of the adding groove 402. A first spring 414 is connected between the blocking block 413 and the support seat 411. Vertical grooves 415 are symmetrically opened on both sides of the inside of the adding groove 402, and the inner cavity of the pyrolysis reactor 1 is located below the vertical groove 415 and is fixedly connected to a fixing frame 416. Feed grooves 417 are opened on both sides of the inner wall of the movable seat 403, and a baffle 418 is symmetrically rotatably connected to the bottom end of the movable seat 403. The baffle 418 is rotatably connected to the movable seat 403 through a connecting shaft 419, and a torsion spring 420 is connected to the outer wall of the baffle 418 and the movable seat 403 located at the connecting shaft 419, and a transverse plate 421 is fixedly connected to the outer wall of the baffle 418.

[0033] In this embodiment: during the process of adding raw materials into the pyrolysis reactor 1 , the raw materials are placed in the placement groove 401 , at which time the blocking block 413 moves into the adding groove 402 under the elastic force of the first spring 414 , and the blocking block 413 blocks the adding groove 402 .

[0034] Start the motor 410, the motor 410 drives the installation shaft 409 to rotate, the installation shaft 409 rotates to drive the second bevel gear 408 to rotate, the second bevel gear 408 rotates to drive the first bevel gear 407 to rotate, the first bevel gear 407 rotates to drive the screw rod 406 to rotate, the screw rod 406 rotates to drive the movable block 404 to move in the movable groove 405, the movable block 404 moves to drive the movable seat 403 to slide in the adding groove 402, when the movable seat 403 moves upward, the movable seat 403 contacts the blocking block 413, and the blocking block 413 is pushed out of the adding groove 402, causing the first spring 414 to be squeezed, and the movable seat 403 moves into the inner cavity of the placement groove 401, and the raw materials in the placement groove 401 enter the movable seat 403 through the feeding groove 417; when the movable seat 4 03 moves downward, the blocking block 413 is inserted into the adding groove 402 again to block the adding groove 402; the movable seat 403 moves into the inner cavity of the pyrolysis reactor 1, and the horizontal plate 421 contacts the fixed frame 416. The rotation of the horizontal plate 421 drives the baffle 418 to rotate, causing the torsion spring 420 to deform, and the raw materials in the movable seat 403 fall into the pyrolysis reactor 1. When the movable seat 403 moves upward again, the baffle 418 is reset by the elastic force of the torsion spring 420, and the baffle 418 blocks the bottom end of the movable seat 403. At the same time, the horizontal plate 421 enters the vertical groove 415, and the plane of the horizontal plate 421 fits with the vertical groove 415, so that the baffle 418 cannot rotate, which can prevent the inner cavity of the pyrolysis reactor 1 from directly contacting the outside air, causing the outside air to enter the pyrolysis reactor 1.

[0035] Please refer to Figures 4 to 8 The air intake mechanism 5 includes an air intake pipe 501, which is fixedly connected to one side of the adding box 3. The air intake pipe 501 is connected to the inner cavity of the support seat 411. The inner wall of the support seat 411 is slidably connected to a partition 502, and a second spring 503 is connected between the partition 502 and the support seat 411. The bottom of the support seat 411 is symmetrically fixedly connected to a connecting port 504 on both sides, and the outer wall of the partition 502 is fixedly connected to a connecting tube 505, which is slidably connected to the connecting port 504. The inner wall, the upper end of the connecting tube 505 is open and the bottom is closed, and an air outlet 506 is provided at the closed end. A circular hole 507 is provided at the top of the inner wall of the fixed seat 412, and a plug 508 is fixedly connected to the top of the movable seat 403. A slot 509 is provided at the bottom end of the shielding block 413, and a round rod 510 is fixedly connected to the top of the shielding block 413. A connecting groove 511 extending to the inside of the round rod 510 is provided at the top of the slot 509, and a horizontally arranged connecting groove 512 is provided at the top of the connecting groove 511.

[0036] In this embodiment, the air inlet pipe 501 conveys the protective gas into the support seat 411, and the protective gas in the support seat 411 is conveyed to the inner cavity of the placement groove 401 through the connecting tube 505 and the air outlet 506; when the movable seat 403 moves upward, the movable seat 403 contacts the blocking block 413, pushing the blocking block 413 to move, at this time, the cannula 508 is inserted into the slot 509, the blocking block 413 moves to drive the round rod 510 to insert into the round hole 507, the round rod 510 pushes the partition 502 to move, the partition 502 moves to drive the connecting tube 505 to slide in the connecting port 504, and the air outlet 506 moves into the connecting port 504. In the interface 504, the air outlet 506 is blocked, and at the same time, the connecting groove 512 enters the inner cavity of the support seat 411, and the protective gas in the support seat 411 enters the movable seat 403 through the connecting groove 512, the connecting groove 511 and the insert tube 508, thereby preventing outside air from entering the movable seat 403. As the movable seat 403 enters the pyrolysis reactor 1, the input of protective gas can prevent outside air from entering the pyrolysis reactor 1 along with the raw materials, thereby avoiding oxygen from entering the pyrolysis reactor 1 during the raw material transportation process. It is worth noting that one end of the air inlet pipe 501 is connected to a storage device for storing protective gas through an air pump and an air valve.

[0037] Please refer to Figures 2 to 4 The inner wall of the fixing seat 412 is in contact with the outer wall of the shielding block 413 , and the outer wall of the shielding block 413 is in contact with the inner wall of the adding groove 402 .

[0038] In this embodiment, the shielding block 413 moves into the adding groove 402 under the elastic force of the first spring 414 , and the shielding block 413 shields the adding groove 402 .

[0039] Please refer to Figures 2 to 4 The inner wall of the adding groove 402 fits with the outer wall of the movable seat 403, the inner wall of the movable groove 405 fits with the outer wall of the movable block 404, the outer wall of the movable block 404 is provided with a threaded hole, the threaded hole matches the screw rod 406, and the second bevel gear 408 is meshed with the first bevel gear 407.

[0040] In this embodiment: the operation of the motor 410 drives the installation shaft 409 to rotate, the rotation of the installation shaft 409 drives the second bevel gear 408 to rotate, the rotation of the second bevel gear 408 drives the first bevel gear 407 to rotate, the rotation of the first bevel gear 407 drives the screw rod 406 to rotate, the rotation of the screw rod 406 drives the movable block 404 to displace in the movable groove 405, the displacement of the movable block 404 drives the movable seat 403 to slide in the adding groove 402.

[0041] Please refer to Figures 2 to 6 The outer wall of the horizontal plate 421 fits with the inner wall of the vertical groove 415, and the outer wall of the fixing frame 416 is L-shaped.

[0042] In this embodiment: when the movable seat 403 moves downward, the blocking block 413 is inserted into the adding groove 402 to block the adding groove 402, and the movable seat 403 moves into the inner cavity of the pyrolysis reactor 1, and the horizontal plate 421 contacts the fixed frame 416. The rotation of the horizontal plate 421 drives the baffle 418 to rotate, causing the torsion spring 420 to deform, and the raw material in the movable seat 403 falls into the pyrolysis reactor 1. When the movable seat 403 moves upward again, the baffle 418 is reset by the elastic force of the torsion spring 420, and the baffle 418 blocks the bottom end of the movable seat 403. At the same time, the horizontal plate 421 enters the vertical groove 415, and the plane of the horizontal plate 421 fits with the vertical groove 415, so that the baffle 418 cannot rotate.

[0043] Please refer to Figures 4 to 8 The inner wall of the connecting port 504 fits with the outer wall of the connecting tube 505 , the outer wall of the insert 508 fits with the inner wall of the slot 509 , the insert 508 is connected to the inner cavity of the movable seat 403 , and the inner wall of the circular hole 507 fits with the outer wall of the round rod 510 .

[0044] In this embodiment: when the movable seat 403 moves upward, the movable seat 403 contacts the blocking block 413, pushing the blocking block 413 to move, at this time, the tube 508 is inserted into the slot 509, the blocking block 413 moves to drive the round rod 510 to be inserted into the round hole 507, the round rod 510 pushes the partition 502 to move, the partition 502 moves to drive the connecting tube 505 to slide in the connecting port 504, the air outlet 506 moves into the connecting port 504, blocking the air outlet 506, and at the same time the connecting groove 512 enters the inner cavity of the support seat 411, and the protective gas in the support seat 411 enters the movable seat 403 through the connecting groove 512, the connecting groove 511 and the tube 508.

[0045] It should be pointed out that the raw materials required for preparing fuel by the biomass pyrolysis method described in the present invention have been crushed in accordance with regulations before feeding; the protective gas described in the present invention refers to an inert gas with stable properties, such as helium.

[0046] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A raw material conveying and adding equipment for preparing fuel by biomass pyrolysis method, comprising a pyrolysis reactor (1), one end of the pyrolysis reactor (1) is fixedly connected to a gasifier (2), the outer wall of the gasifier (2) is fixedly connected to an air inlet pipe (6), the outer wall of the air inlet pipe (6) is installed with a fan (7), the outer wall of the gasifier (2) is located above the air inlet pipe (6) and is fixedly connected to a steam pipe (8), one end of the steam pipe (8) is connected to the air inlet pipe (6), the top of the pyrolysis reactor (1) is fixedly connected to an adding box (3) and an exhaust pipe (9), the exhaust pipe (9) is located on one side of the adding box (3), and is characterized in that: The adding box (3) adds raw materials to the pyrolysis reactor (1) via an adding mechanism (4); The adding mechanism (4) comprises a placement groove (401), the placement groove (401) being opened at the top of the adding box (3), the bottom of the placement groove (401) being opened with an adding groove (402), the adding groove (402) being connected to the inner cavity of the pyrolysis reactor (1), the inner wall of the adding groove (402) being slidably connected with a movable seat (403), the outer wall of one end of the movable seat (403) being fixedly connected with a movable block (404), the inner wall of one end of the adding groove (402) being opened with a movable groove (405), the interior of the movable groove (405) being rotatably connected with a movable block (404) penetrating the inner wall of the adding groove (402), and the inner wall of the movable seat (403) being rotatably connected with a movable block (404) penetrating the inner wall of the adding groove (402). The screw rod (406) of the movable block (404) is fixedly connected to a first bevel gear (407) at the top end of the screw rod (406); the interior of the adding box (3) is located on the outer wall of the first bevel gear (407) and is rotatably connected to a second bevel gear (408); one end of the second bevel gear (408) is fixedly connected to a mounting shaft (409); a motor (410) is mounted on the outer wall of the adding box (3); the mounting shaft (409) is connected to the output end of the motor (410); the adding box (3) inputs protective gas into the placement groove (401) through an air intake mechanism (5); The adding mechanism (4) further comprises a support seat (411), the support seat (411) being fixedly connected to the inner wall of the placement groove (401), the bottom end of the support seat (411) being fixedly connected to a fixing seat (412), the inner wall of the fixing seat (412) being slidably connected to a blocking block (413), the blocking block (413) extending to the inner cavity of the adding groove (402), a first spring (414) being connected between the blocking block (413) and the support seat (411), vertical grooves (415) being symmetrically provided on both sides of the interior of the adding groove (402), the pyrolysis The inner cavity of the reactor (1) is located below the vertical groove (415) and is fixedly connected to a fixed frame (416); feed grooves (417) are provided on both sides of the inner wall of the movable seat (403); a baffle (418) is symmetrically rotatably connected to the bottom end of the movable seat (403); the baffle (418) is rotatably connected to the movable seat (403) via a connecting shaft (419); a torsion spring (420) is connected to the outer wall of the connecting shaft (419) between the baffle (418) and the movable seat (403); and a transverse plate (421) is fixedly connected to the outer wall of the baffle (418).

2. The raw material conveying and adding equipment for preparing fuel by biomass pyrolysis method according to claim 1 is characterized in that: The air intake mechanism (5) comprises an air intake pipe (501), the air intake pipe (501) being fixedly connected to one side of the adding box (3), the air intake pipe (501) being communicated with the inner cavity of the support seat (411), a partition plate (502) being slidably connected to the inner wall of the support seat (411) up and down, a second spring (503) being connected between the partition plate (502) and the support seat (411), connecting ports (504) being symmetrically fixedly connected to the two sides of the bottom end of the support seat (411), a connecting tube (505) being fixedly connected to the outer wall of the partition plate (502), and the connecting tube (505) being slidably connected to the connecting port The inner wall of the connecting tube (505) is open at the upper end and closed at the bottom, and an air outlet (506) is provided at the closed end; a circular hole (507) is provided at the top end of the inner wall of the fixed seat (412); a plug (508) is fixedly connected to the top end of the movable seat (403); a slot (509) is provided at the bottom end of the shielding block (413); a round rod (510) is fixedly connected to the top end of the shielding block (413); a connecting groove (511) extending to the inside of the round rod (510) is provided at the top end of the slot (509); and a transversely arranged connecting groove (512) is provided at the top end of the connecting groove (511).

3. The raw material conveying and adding equipment for preparing fuel by biomass pyrolysis method according to claim 1 is characterized in that: The inner wall of the fixing seat (412) fits with the outer wall of the shielding block (413), and the outer wall of the shielding block (413) fits with the inner wall of the adding groove (402).

4. The raw material conveying and adding equipment for preparing fuel by biomass pyrolysis method according to claim 1 is characterized in that: The inner wall of the adding groove (402) fits with the outer wall of the movable seat (403), and the inner wall of the movable groove (405) fits with the outer wall of the movable block (404).

5. The raw material conveying and adding equipment for preparing fuel by biomass pyrolysis method according to claim 1, characterized in that: A threaded hole is formed on the outer wall of the movable block (404), the threaded hole matches the screw rod (406), and the second bevel gear (408) meshes with the first bevel gear (407).

6. The raw material conveying and adding equipment for preparing fuel by biomass pyrolysis method according to claim 1, characterized in that: The outer wall of the horizontal plate (421) fits into the inner wall of the vertical groove (415), and the outer wall of the fixing frame (416) is L-shaped.

7. The raw material conveying and adding equipment for preparing fuel by biomass pyrolysis method according to claim 2, characterized in that: The inner wall of the connecting port (504) fits in contact with the outer wall of the connecting tube (505).

8. The raw material conveying and adding equipment for preparing fuel by biomass pyrolysis method according to claim 2, characterized in that: The outer wall of the insertion tube (508) fits the inner wall of the insertion slot (509), and the insertion tube (508) is in communication with the inner cavity of the movable seat (403).

9. The raw material conveying and adding equipment for preparing fuel by biomass pyrolysis method according to claim 2, characterized in that: The inner wall of the circular hole (507) fits into the outer wall of the round rod (510).

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