Biomass quantitative feeding rotary stock bin

Abstract

The invention relates to the technical field of biomass combustion, and discloses a biomass quantitative feeding rotary stock bin which comprises an outer fixed bin cylinder and an inner fixed bin cylinder, the inner fixed bin cylinder is located in the outer fixed bin cylinder, and a discharging opening is formed in the bottom face of the outer fixed bin cylinder. A first material guide scraper and a second material guide scraper are arranged in the outer fixed silo, the first material guide scraper is fixed in the outer fixed silo, the second material guide scraper is movably arranged in the outer fixed silo, a feeding port is formed in the top of the inner fixed silo, and a notch is formed in the peripheral surface of the inner fixed silo. By means of the inner and outer double-cavity structure and the double functions of rotation of the material uniformizing base plate and the outer fixed material guiding scraper, biomass materials are effectively prevented from bridging and arching in the stock bin, meanwhile, the double-speed rotating base plate is matched with frequency conversion speed regulation, the inner cavity discharging speed and the outer cavity discharging amount are accurately controlled, continuous and stable feeding is achieved, and the working efficiency is improved. And efficiency reduction of downstream equipment caused by material supply fluctuation is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of biomass combustion, and particularly relates to a biomass quantitative feeding rotary bunker. BACKGROUND

[0002] Biomass combustion refers to a process of using biomass as fuel to release chemical energy stored therein through direct or indirect oxidation reaction, and converting the chemical energy into heat energy, light energy or electric energy.

[0003] When biomass combustion is carried out, a feeding device is needed to feed biomass fuel, and according to the search, a feeding device of a biomass gasification furnace is disclosed in Chinese patent No. CN207828207U, which comprises a feeding port arranged on the top wall of the gasification furnace, a buffer bunker is arranged above the gasification furnace and is communicated with the feeding port through a vertical channel, a hydraulic flap valve for controlling the feeding amount is arranged at the connection between the buffer bunker and the vertical channel, a center cylinder with an open bottom is arranged in the gasification furnace below the feeding port to form a high-level material layer, and the gas outlet of the gasification furnace is arranged at the top end of the sidewall of the gasification furnace body beside the center cylinder. The above scheme can ensure the sealing performance of the gasification furnace, avoid the blocking phenomenon of the biomass raw material at the feeding port, and further improve the production efficiency of the gasification furnace and prolong the service life of the feeding device. However, when the above scheme is actually used, the following problems still exist: The biomass fuel in the bunker often appears bridging, arching and material blocking due to its own physical characteristics, such as irregular shape, large particle size difference, poor flowability, easy moisture absorption and caking, and improper design or operation management of the bunker structure, which causes the biomass fuel to accumulate and block in the bunker, and cannot smoothly fall to the downstream equipment. This problem not only causes the effective volume utilization rate of the bunker to be reduced, and the feeding device needs to be frequently stopped and cleaned to restore the feeding, but also causes the downstream crusher, conveyor and combustor to frequently bear impact load or run empty, which causes the equipment to vibrate intensively, wear quickly, energy consumption to be abnormally high, and even causes the equipment to stop working. At the same time, uneven feeding directly leads to poor stability of the biomass combustion process, such as large fluctuation of the furnace temperature, decrease of the combustion efficiency, and excessive emission of pollutants, which further affects the continuity, safety and economy of the entire recycling production system. SUMMARY

[0004] The technical problem to be solved by the present application is that in the prior art, the biomass fuel is bridged and blocked due to its own characteristics and the management problem of the bunker, the feeding is discontinuous and uneven, the equipment frequently fails, and the process fluctuates out of control, which seriously restricts the production efficiency and the stable and economic operation of the recycling system. Therefore, the present application provides a biomass quantitative feeding rotary bunker.

[0005] In order to achieve the above object, the technical scheme adopted by the present application is as follows: a biomass quantitative feeding rotary bin comprises an outer fixed bin barrel and an inner fixed bin barrel, the inner fixed bin barrel is located inside the outer fixed bin barrel, the bottom surface of the outer fixed bin barrel is provided with a discharge port, the inside of the outer fixed bin barrel is provided with a first material guiding scraper and a second material guiding scraper, the first material guiding scraper is fixed in the outer fixed bin barrel, the second material guiding scraper is movably arranged in the outer fixed bin barrel, the top of the inner fixed bin barrel is provided with a feeding port, and the outer circumferential surface of the inner fixed bin barrel is provided with a notch. The inside of the outer fixed bin barrel is provided with a rotating assembly, the rotating assembly comprises a discharging bottom disc and a material uniformizing bottom disc, the bottom surface of the outer fixed bin barrel is provided with a first speed reducer and a second speed reducer, the material uniformizing bottom disc is driven by the first speed reducer, the discharging bottom disc is driven by the second speed reducer, the upper portion of the material uniformizing bottom disc is provided with a pressure relief cone, the pressure relief cone can rotate with the material uniformizing bottom disc, the pressure relief cone is located directly below the feeding port, the first material guiding scraper is located above the material uniformizing bottom disc and passes through the notch, and the second material guiding scraper is located above the discharge port.

[0006] Preferably, the bottom surface of the discharging bottom disc is provided with a sink, the sink is fixedly provided with a gear ring, the output shaft of the second speed reducer is fixedly provided with a driving gear, and the gear ring and the driving gear are in meshing connection.

[0007] Preferably, the rotating assembly further comprises a support and a rotating rod, the support is located above the material uniformizing bottom disc and is connected with the material uniformizing bottom disc through four connecting rods, the rotating rod is installed on the support, the bottom end of the rotating rod and the material uniformizing bottom disc have a spacing, the rotating rod, the pressure relief cone and the material uniformizing bottom disc are coaxially arranged, and the pressure relief cone rotates with the rotating rod.

[0008] Preferably, the rotating rod and the pressure relief cone are connected through a connecting structure, a rotating seat is fixedly arranged on the rotating rod and located at the end of the rotating rod close to the support, the rotating seat is in an oblique truncated cylindrical structure, and a lifting assembly is arranged on the inner fixed bin barrel. The connecting structure comprises an outer cylinder, the outer cylinder is fixedly arranged at the top end of the rotating rod, the inside of the outer cylinder is provided with a slidable sliding rod, the top end of the sliding rod extends to the outside of the outer cylinder and is connected with the pressure relief cone, and the outer cylinder and the sliding rod are connected through a connecting spring.

[0009] Preferably, the lifting assembly comprises a fixed plate fixed on the inner fixed silo, an end of the fixed plate is fixedly provided with a barrel, the top end of the barrel is in an open structure, the bottom end is provided with a hole, the inside of the barrel is provided with a movable block which can slide, the top surface of the movable block is fixedly provided with a top rod one, the end of the top rod one away from the movable block extends to the outside of the barrel and is opposite to the decompression cone, the bottom surface of the movable block is fixedly provided with a top rod two, the end of the top rod two away from the movable block penetrates through the hole and extends to the upper side of the rotating seat.

[0010] Preferably, the end of the top rod one away from the movable block is provided with a rotatable ball, and the ball is in contact with the bottom surface of the decompression cone.

[0011] Preferably, the decompression cone is fixedly provided with a spiral blade.

[0012] Preferably, the outer circumferential surface of the unloading base plate is fixedly provided with a material cleaning scraper which is in contact with the inner bottom surface of the outer fixed silo.

[0013] Preferably, the inside of the inner fixed silo is fixedly provided with a material scraping plate.

[0014] Preferably, the inside of the rotating rod is in a hollow structure, the outer circumferential surface of the rotating rod is provided with a plurality of exhaust holes, the bottom end of the rotating rod is connected with a rotating joint, the inside of the inner fixed silo is fixedly provided with an annular dust removal cover, the inside of the annular dust removal cover is filled with dust removal filter material, the inner ring of the annular dust removal cover is provided with a plurality of dust removal openings, each dust removal opening is provided with a screen, the outer circumferential surface of the outer fixed silo is provided with an air induction fan, the air suction end of the air induction fan is in communication with the annular dust removal cover, and the air exhaust end of the air induction fan is in communication with the rotating joint.

[0015] The technical effects and advantages of the present application are as follows: In the present application, through the double-cavity structure of the inner and outer silos, the rotation of the material uniformizing base plate and the double effect of the outer fixed material guiding scraper, the bridging and arching of the biomass material in the silo are effectively prevented, the frequency conversion speed of the material uniformizing base plate and the unloading base plate is adjusted, the unloading speed of the inner cavity and the discharge amount of the outer cavity are accurately controlled, continuous and stable material feeding is realized, and the efficiency of the downstream equipment is prevented from being reduced due to material feeding fluctuation. In the present application, the decompression cone rotates synchronously with the material uniformizing base plate, the conical spiral blade continuously loosens the material in the inner fixed silo to prevent compaction, and through the linkage of the oblique truncated cylindrical rotating seat on the rotating rod and the top rod, the decompression cone generates up-down vibration in the rotating process, further disperses the material with high water content or easy adhesion, and ensures stable fluidity. In the application, the air entraining fan sprays gas through the rotating rod exhaust hole, and cooperates with the dust removal port negative pressure air suction to form air flow circulation, blows off the dust in the biomass fuel in the falling process, the dust is intercepted by the filter material in the annular dust removal cover, reduces the combustion pollution and material waste, and significantly improves the fuel utilization rate and subsequent process efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] The disclosure of the present application will be described with reference to the accompanying drawings. It should be understood that the drawings are for purposes of illustration only and are not intended to limit the scope of the present application. In the drawings, the same reference numerals are used to refer to the same components: Figure 1 Structure diagram of the present application Figure 1 ; Figure 2 Structure diagram of the present application Figure 2 ; Figure 3 Structure diagram of the present application Figure 4 Structure diagram of the present application Figure 3 ; Figure 5 Structure diagram of the present application Figure 3 ; Figure 6 Structure diagram of the present application Figure 7 Structure diagram of the present application Figure 8 Structure diagram of the present application Figure 1 ; Figure 9 Structure diagram of the present application Figure 2 ; Figure 10 Structure diagram of the present application

[0017] Legend: 1, outer fixed cylinder; 11, discharge port; 12, first speed reducer; 13, second speed reducer; 131, drive gear; 14, first material guide scraper; 15, material scraping plate; 16, second material guide scraper; 2, inner fixed cylinder; 21, feed port; 22, notch; 31, discharge bottom plate; 311, sink; 312, material cleaning scraper; 313, gear ring; 32, material uniformizing bottom plate; 321, support; 322, connecting rod; 323, rotating rod; 3231, outer cylinder; 3232, sliding rod; 3233, connecting spring; 324, pressure reducing cone; 325, spiral blade; 41, rotating seat; 42, fixed plate; 43, cylinder body; 44, movable block; 45, top rod one; 46, ball; 47, top rod two; 51, exhaust hole; 52, rotary joint; 53, annular dust removal cover; 531, dust removal filter material; 54, dust removal port; 55, separation net; 56, air entraining fan. Detailed Implementation

[0018] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0019] Reference Figures 1-10 As shown, the present invention provides a technical solution: a biomass quantitative feeding rotary silo, including an outer fixed silo 1 and an inner fixed silo 2. The inner fixed silo 2 is located inside the outer fixed silo 1. The bottom surface of the outer fixed silo 1 is provided with a discharge port 11. The interior of the outer fixed silo 1 is provided with a first guide scraper 14 and a second guide scraper 16. The first guide scraper 14 is fixed inside the outer fixed silo 1, and the second guide scraper 16 is movably disposed inside the outer fixed silo 1. The top of the inner fixed silo 2 is provided with a feed inlet 21, and the outer circumferential surface of the inner fixed silo 2 is provided with a notch 22. A scraper plate 15 is fixed inside the inner fixed silo 2.

[0020] Reference Figure 3 and Figure 6 As shown, the outer fixed silo 1 has a rotating assembly inside, which includes a discharge chassis 31 and a material distribution chassis 32. A first geared motor 12 and a second geared motor 13 are mounted on the bottom surface of the outer fixed silo 1. The material distribution chassis 32 is driven by the first geared motor 12, and the discharge chassis 31 is driven by the second geared motor 13. A groove 311 is formed on the bottom surface of the discharge chassis 31, and a gear ring 313 is fixed in the groove 311. A drive gear 131 is fixed on the output shaft of the second geared motor 13. The gear ring 313 and the drive gear 131 are connected by a gear... The components mesh with each other. A cleaning scraper 312 is fixed on the outer circumference of the unloading base 31. The cleaning scraper 312 is in contact with the inner bottom surface of the outer fixed silo 1. A pressure reducing cone 324 is provided above the material equalization base 32. The pressure reducing cone 324 can rotate with the material equalization base 32. The pressure reducing cone 324 is located directly below the feed inlet 21. A spiral blade 325 is fixed on the pressure reducing cone 324. The first guide scraper 14 is located above the material equalization base 32 and passes through the notch 22. The second guide scraper 16 is located above the discharge port 11.

[0021] Reference Figure 4As shown, the rotating assembly further comprises a support 321 and a rotating rod 323, the support 321 is located above the material equalizing tray 32, and the support 321 is connected with the material equalizing tray 32 through four connecting rods 322, the rotating rod 323 is installed on the support 321, and the bottom end of the rotating rod 323 has a spacing with the material equalizing tray 32, the rotating rod 323, the pressure reducing cone 324 and the material equalizing tray 32 are coaxially arranged, when the rotating rod 323 rotates, the pressure reducing cone 324 rotates along with it; When biomass is burned, the bunker supplies biomass fuel, when in use, the biomass fuel is loaded into the inner fixed silo through the feeding port 21, in the falling process, the biomass fuel first contacts the pressure reducing cone 324, and is scattered around under the action of the pressure reducing cone 324, and finally falls on the material equalizing tray 32, in addition, the first speed reducer 12 is started to drive the material equalizing tray 32 to start rotating, and the biomass fuel on the material equalizing tray 32 is driven to rotate along with it, at this time, the first material guiding scraper 14 welded on the outer fixed silo continuously guides the biomass fuel from the surface of the rotating material equalizing tray 32 to the discharging tray 31, at the same time, the material equalizing tray 32 can drive the pressure reducing cone 324 and the conical spiral blade 325 to rotate synchronously with the tray through the rotating rod 323, so as to continuously loosen the biomass fuel in the falling process, prevent the biomass fuel from being accumulated and adhered due to compaction or too high water content, in addition, the second speed reducer 13 drives the discharging tray 31 to rotate through the driving gear 131 and the gear ring 313 which are engaged with each other, the material scraping plate 15 scrapes and uniformly distributes the biomass fuel on the surface of the discharging tray 31, the second material guiding scraper 16 above the discharge port 11 guides the biomass fuel from the discharging tray 31 to the discharge port 11, so as to realize the discharging of the bunker, in the discharging process, the material cleaning scraper 312 connected with the discharging tray 31 sweeps the biomass fuel remaining on the bottom plate of the outer fixed silo to the discharge port 11, so as to avoid fuel residue; The double-speed rotating structure (by controlling the rotating speed of the first speed reducer 12 and the second speed reducer 13) of the material equalizing tray 32 and the discharging tray 31 is used, the discharging speed is accurately controlled, the second material guiding scraper 16 is height-adjustable, so that the discharging amount is controllable, finally, the continuous and stable output of the biomass fuel is realized, at the same time, the inner and outer double-cavity structure is used to avoid the influence of the material level on the equipment operation, and the problems of bridging, arching and uneven feeding of the biomass material in the bunker are solved.

[0022] Reference Figure 5As shown, the connecting structure is connected between the rotating rod 323 and the pressure reducing cone 324, and the connecting structure comprises an outer cylinder 3231 fixed at the top end of the rotating rod 323, and a slidable sliding rod 3232 arranged in the outer cylinder 3231, the top end of the sliding rod 3232 extending to the outside of the outer cylinder 3231 and being connected with the pressure reducing cone 324, and a connecting spring 3233 connected between the outer cylinder 3231 and the sliding rod 3232, and a rotating seat 41 fixedly sleeved on the rotating rod 323 and located at one end of the rotating rod 323 close to the support 321, and the rotating seat 41 is a slanting cylindrical structure; Referring to Figure 4 and Figure 5 As shown, the inner fixed bin cylinder 2 is provided with a lifting assembly, the lifting assembly comprises a fixed plate 42 fixed on the inner fixed bin cylinder 2, and a cylinder body 43 fixed at the end of the fixed plate 42, the top end of the cylinder body 43 is an open structure, the bottom end is provided with a hole position, the cylinder body 43 is internally provided with a slidable movable block 44, the top surface of the movable block 44 is fixed with a top rod one 45, the end of the top rod one 45 away from the movable block 44 extends to the outside of the cylinder body 43 and is opposite to the pressure reducing cone 324, the end of the top rod one 45 away from the movable block 44 is provided with a rotatable ball 46, the ball 46 is in contact with the bottom surface of the pressure reducing cone 324, the bottom surface of the movable block 44 is fixed with a top rod two 47, the end of the top rod two 47 away from the movable block 44 passes through the hole position and extends above the rotating seat 41; In the present application, in order to improve the scattering effect of the pressure reducing cone 324 on the biomass raw material, the connecting structure and the lifting assembly are provided, specifically, when the rotating rod 323 rotates, the rotating seat 41 on the rotating rod 323 rotates, and the top rod one 45 on the movable block 44 is in contact with the pressure reducing cone 324, so that the pressure reducing cone 324 is lifted and lowered, and the biomass raw material is scattered. Figure 4 and Figure 5As shown, the rotating seat 41 is a truncated cone structure, and the top end is provided with an inclined surface, so that the rotating seat 41 continuously extrudes the second top rod 47 during rotation. When the rotating seat 41 extrudes the second top rod 47, the second top rod 47 can move upward and drive the movable block 44 to move upward. When the movable block 44 moves upward, it drives the first top rod 45 to move upward. When the first top rod 45 moves upward, it can lift the pressure relief cone 324, so that the pressure relief cone 324 moves upward. Similarly, when the rotating seat 41 does not extrude the second top rod 47, the second top rod 47, the movable block 44, the first top rod 45 and the pressure relief cone 324 will automatically reset under the action of gravity. Based on the above process, the pressure relief cone 324 will also produce an up-and-down vibration effect in the vertical direction during rotation with the rotating rod 323. This design enables the pressure relief cone 324 to rotate and scatter the material while periodically vibrating to enhance the loosening effect on the biomass raw material, effectively preventing the material from being compacted and adhering, especially for biomass materials with different moisture contents, to ensure stable material flow. It should be noted that the top end of the first top rod 45 is provided with a rotatable ball 46. The design of the ball 46 can reduce the wear between the first top rod 45 and the pressure relief cone 324. In addition, the outer cylinder 3231 and the sliding rod 3232 provide limiting for the pressure relief cone 324 during vibration. The connecting spring 3233 is provided for automatic reset of the pressure relief cone 324.

[0023] Referring to Figure 10 As shown, the inside of the rotating rod 323 is a hollow structure, and the outer circumferential surface of the rotating rod 323 is provided with a plurality of exhaust holes 51. The bottom end of the rotating rod 323 is connected with a rotating joint 52. The inside of the inner fixed bin cylinder 2 is fixed with an annular dust removal cover 53. The annular dust removal cover 53 is filled with dust removal filter material 531. The inner ring of the annular dust removal cover 53 is provided with a plurality of dust removal openings 54. Each dust removal opening 54 is provided with a screen 55. The outer circumferential surface of the outer fixed bin cylinder 1 is provided with an air induction fan 56. The air suction end of the air induction fan 56 is in communication with the annular dust removal cover 53. The air exhaust end of the air induction fan 56 is in communication with the rotating joint 52. The design of the rotating joint 52 enables the rotating rod 323 and the pipeline to rotate relative to each other. Further, the present application also has the function of cleaning dust from biomass fuel. Specifically, the outer fixed bin cylinder 1 is provided with an air induction fan 56. When the air induction fan 56 operates, it can extract air from the inside of the annular dust removal cover 53 and discharge the gas into the inside of the rotating rod 323, so that the gas is finally sprayed out through the plurality of exhaust holes 51. Figure 10 As shown, the gas injection action of the plurality of exhaust holes 51 cooperates with the negative pressure air suction action of the plurality of dust removal openings 54, so that the dust in the biomass fuel can be sucked into the plurality of dust removal openings 54 and finally into the inside of the annular dust removal cover 53. The inside of the annular dust removal cover 53 is filled with dust removal filter material 531 for intercepting dust. In addition, Figure 10The falling trajectory of the biomass fuel is shown in the middle. The gas acts on the biomass fuel in the falling state, which can maximize the blowing of the dust mixed in the biomass fuel. In summary, the air in the annular dust removal cover 53 is extracted by the air induction fan 56 and sprayed out through the exhaust hole 51, and the air flow circulation is formed by the negative pressure air suction of the dust removal port 54. This design can efficiently blow off the mixed dust in the biomass fuel during the falling process, and at the same time, the filter material in the annular dust removal cover 53 is used to intercept dust particles, realizing dynamic dust removal during the feeding process, reducing dust pollution and avoiding material waste, and significantly improving the purity and subsequent combustion efficiency of the biomass fuel.

[0024] The working principle of the biomass quantitative feeding rotary silo is as follows: After the biomass fuel is loaded into the inner fixed silo 2 through the feeding port 21, it first contacts the pressure reduction cone 324 located directly below the feeding port during the falling process. Under the action of the pressure reduction cone 324, the biomass fuel spreads outwards and finally falls on the uniform material base plate 32. At this time, the first speed reducer motor 12 is started to drive the uniform material base plate 32 to rotate, which drives the biomass fuel on it to rotate synchronously. The first material guide scraper 14 welded on the outer fixed silo 1 continuously guides the material from the surface of the rotating uniform material base plate 32 to the discharge base plate 31. At the same time, the uniform material base plate 32 drives the pressure reduction cone 324 and its conical spiral blade 325 to rotate synchronously through the rotating rod 323, which continuously loosens the falling material to prevent compaction or adhesion caused by high moisture content. When the rotating rod 323 rotates, the rotating seat 41 with a slanting truncated cylindrical structure continuously presses the top rod two 47, which drives the top rod one 45 and the pressure reduction cone 324 to vibrate up and down through the movable block 44, enhancing the loosening effect of the material. The second speed reducer motor 13 drives the discharge base plate 31 to rotate through the driving gear 131 and the gear ring 313 that mesh with each other. The material is scraped flat and evenly distributed on the surface of the discharge base plate 31 by the material scraping plate 15. The second material guide scraper 16 above the discharge port 11 guides the material into the discharge port 11. During the discharging process, the material scraping knife 312 connected to the discharge base plate 31 sweeps the residual material on the bottom plate of the outer fixed silo 1 to the discharge port 11. When the air induction fan 56 is running, the gas is sprayed out through the exhaust hole 51 of the rotating rod 323, and the air flow circulation is formed by the negative pressure air suction of the dust removal port 54 of the annular dust removal cover 53, which blows off the dust in the biomass fuel during the falling process. The dust is intercepted by the filter material 531 in the annular dust removal cover 53, realizing dynamic dust removal during the feeding process. The double-speed rotating structure is realized by controlling the rotating speed of the first speed reducer motor 12 and the second speed reducer motor 13, which precisely controls the discharging speed. The second material guide scraper 16 with adjustable height makes the discharging amount controllable, finally realizing the continuous and stable output of the biomass fuel. At the same time, the use of the inner and outer double-cavity structure avoids the influence of the material level on the equipment operation, solves the problems of bridging, arching and uneven feeding of the biomass material in the silo.

[0025] The technical scope of the present application is not limited to the above description, and those skilled in the art can make various modifications and changes to the above embodiments without departing from the technical idea of the present application, and these modifications and changes should all belong to the protection scope of the present application.

Claims

1. A biomass dosing rotary bin, characterized by: It includes outer fixed bin (1) and inner fixed bin (2), the bottom surface of outer fixed bin (1) is provided with discharge port (11), the inside of outer fixed bin (1) is provided with first material guide scraper (14) and second material guide scraper (16), first material guide scraper (14) is fixed in outer fixed bin (1), second material guide scraper (16) is movably arranged in outer fixed bin (1), the top of inner fixed bin (2) is provided with feed inlet (21), the outer circumferential surface of inner fixed bin (2) is provided with notch (22); The inside of outer fixed bin (1) is provided with rotating assembly, which includes unloading disc (31) and material equalizing disc (32), the bottom surface of outer fixed bin (1) is provided with first speed reducer (12) and second speed reducer (13), material equalizing disc (32) is driven by first speed reducer (12), unloading disc (31) is driven by second speed reducer (13), the upper side of material equalizing disc (32) is provided with pressure relief cone (324), and pressure relief cone (324) can rotate with material equalizing disc (32), first material guide scraper (14) is located above material equalizing disc (32), and first material guide scraper (14) passes through notch (22), second material guide scraper (16) is located above discharge port (11).

2. The biomass dosing rotary bin of claim 1, wherein: The bottom surface of unloading disc (31) is provided with sink (311), the inside of sink (311) is fixed with gear ring (313), the output shaft of second speed reducer (13) is fixed with driving gear (131), gear ring (313) and driving gear (131) are engaged with each other.

3. The biomass dosing rotary bin of claim 1, wherein: The rotating assembly further includes support (321) and rotating rod (323), support (321) is located above material equalizing disc (32), and support (321) is connected with material equalizing disc (32) through four connecting rods (322), rotating rod (323) is installed on support (321), the bottom end of rotating rod (323) has a spacing with material equalizing disc (32), rotating rod (323), pressure relief cone (324) and material equalizing disc (32) are coaxially arranged, when rotating rod (323) rotates, pressure relief cone (324) rotates accordingly.

4. The biomass dosing rotary bin of claim 3, wherein: Rotating rod (323) and pressure relief cone (324) are connected through connecting structure, rotating seat (41) is fixedly sleeved on rotating rod (323), and rotating seat (41) is located at one end of rotating rod (323) close to support (321), rotating seat (41) is an inclined cylindrical structure, inner fixed bin (2) is provided with lifting assembly; The connecting structure includes outer cylinder (3231), outer cylinder (3231) is fixed at the top end of rotating rod (323), outer cylinder (3231) is provided with slidable slide rod (3232) inside, the top end of slide rod (3232) extends to the outside of outer cylinder (3231) and is connected with pressure relief cone (324), outer cylinder (3231) and slide rod (3232) are connected through connecting spring (3233).

5. The biomass dosing rotary bin of claim 4, wherein: The lifting assembly comprises a fixed plate (42) fixed on the inner fixed bin barrel (2), an end position of the fixed plate (42) is fixed with a cylinder body (43), the top end of the cylinder body (43) is an open structure, the bottom end is provided with a hole position, the inside of the cylinder body (43) is provided with a slidable movable block (44), the top surface of the movable block (44) is fixed with a top rod one (45), the end of the top rod one (45) away from the movable block (44) extends to the outside of the cylinder body (43) and is arranged opposite to the pressure reducing cone (324), the bottom surface of the movable block (44) is fixed with a top rod two (47), the end of the top rod two (47) away from the movable block (44) passes through the hole position and extends to above the rotating seat (41).

6. The biomass dosing rotary bin of claim 5, wherein: The end of the top rod one (45) away from the movable block (44) is provided with a rotatable ball (46), and the ball (46) is in contact with the bottom surface of the pressure reducing cone (324).

7. The biomass dosing rotary bin of claim 1, wherein: The pressure reducing cone (324) is fixed with a spiral blade (325).

8. The biomass dosing rotary bin of claim 1, wherein: The outer peripheral surface of the discharging bottom disc (31) is fixed with a material cleaning scraper (312), and the material cleaning scraper (312) is attached to the inner bottom surface of the outer fixed bin barrel (1).

9. The biomass dosing rotary bin of claim 1, wherein: The inside of the inner fixed bin barrel (2) is fixed with a material scraping plate (15).

10. The biomass dosing rotary bin of claim 3, wherein: The inside of the rotating rod (323) is a hollow structure, the outer peripheral surface of the rotating rod (323) is provided with a plurality of exhaust holes (51), the bottom end of the rotating rod (323) is connected with a rotary joint (52), the inside of the inner fixed bin barrel (2) is fixed with an annular dust removal cover (53), the inside of the annular dust removal cover (53) is filled with dust removal filter material (531), the inner ring of the annular dust removal cover (53) is provided with a plurality of dust removal openings (54), each dust removal opening (54) is provided with a screen (55), the outer peripheral surface of the outer fixed bin barrel (1) is provided with an air guiding fan (56), the air suction end of the air guiding fan (56) is communicated with the annular dust removal cover (53), and the air exhaust end of the air guiding fan (56) is communicated with the rotary joint (52).

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