CN219884677U - Biomass raw material storage bin and conveying device - Google Patents

Abstract

The utility model discloses a biomass raw material storage bin and a conveying device, wherein the biomass raw material storage bin comprises a bin body and at least one decompression part, the decompression part is arranged in the bin body and is fixed with the inner wall of the bin body, a decompression cavity is formed in the decompression part, air inlets are correspondingly formed in the decompression part and the side wall fixed by the bin body, at least one side wall is provided with an air outlet hole in the decompression part except the side wall fixed by the bin body, the air inlets are communicated with the air outlets through the decompression cavity, and the biomass raw material storage bin further comprises an air supply device, and the air supply device is communicated with the air inlets and is used for providing inert gases. According to the utility model, the decompression part and the air supply device are additionally arranged, so that inert gas is provided for the inside of the bin body, the effect of evacuating biomass raw materials is achieved, the contact force generated by stacking the biomass raw materials together due to gravity is reduced, and the phenomenon of arch formation and bridging is prevented; meanwhile, the inert gas is introduced to establish a safer environment in the bin body, so that risks are reduced, and the effects of fire prevention and extinguishment are achieved.

Description

Biomass raw material storage bin and conveying device

Technical Field

The utility model relates to the technical field of biomass storage and conveying, in particular to a biomass raw material storage bin and a conveying device.

Background

According to the storage device for biomass raw materials in the prior art, through the arrangement of the ventilation mechanism, stored biomass raw materials can be ventilated and ventilated in a humid environment, so that the problem that the biomass raw materials are rotten due to humidity is avoided, the problem of CO aggregation is also avoided, and the problem of hardening/arching caused by material accumulation still cannot be solved.

Disclosure of Invention

The utility model aims to provide a biomass raw material storage bin and a conveying device, which solve the problem of arching and bridging after stacking and compacting biomass raw materials and can ensure the storage safety of the biomass raw materials.

In order to solve the technical problems, the utility model provides a biomass raw material storage bin which comprises a bin body and at least one decompression part, wherein the decompression part is arranged in the bin body and is fixed with the inner wall of the bin body, a decompression cavity is formed in the decompression part, air inlets are correspondingly arranged on the decompression part and the side wall fixed with the bin body, in the decompression part, at least one side wall is also provided with an air outlet except the side wall fixed with the bin body, the air inlets are communicated with the air outlets through the decompression cavity,

the air supply device is communicated with the air inlet hole and is used for providing inert gas.

The biomass raw material storage bin is additionally provided with a decompression part and a gas supply device, and inert gas such as helium and the like is provided for the inside of the bin body through the gas supply device, in particular to the biomass raw material storage bin comprising a plurality of biomass raw material storage tanks: helium is introduced into the decompression cavity through the air inlet hole, and then helium in the decompression cavity is introduced into the bin body through the air outlet hole, so that the biomass raw material evacuation function is achieved, the contact force generated by piling up biomass raw materials together due to gravity is reduced, the phenomenon of arching and bridging of the materials is prevented, the risk of blocking the materials is avoided, the materials can be conveyed normally, and the stable operation of the biomass power generation system is ensured.

At the same time, it is understood that as the biomass feedstock accumulates, the pressure increases, causing the biomass feedstock to heat up, and over time, the rate of temperature rise increases, possibly exceeding safe thresholds. According to the utility model, the pressure reducing part and the air supply device are arranged, and inert gas is provided for the interior of the bin body, so that the temperature in the bin body can be controlled, the temperature is prevented from exceeding a safety critical value, the inert gas is introduced to dilute inflammable and explosive gas in the bin body, a safer environment is established in the bin body, the risk is reduced, and the fireproof effect is achieved; in addition, the inert gas is introduced during combustion to extinguish fire.

Therefore, the biomass raw material storage device can solve the problem of arch bridging after stacking and compacting of biomass raw materials and can ensure the storage safety of the biomass raw materials through the arrangement of the decompression part and the air supply device.

Optionally, the pressure reducing parts located at the same height in the bin body form one pressure reducing assembly, the number of the pressure reducing assemblies is one or more, the pressure reducing assemblies are distributed at intervals along the height direction, the pressure reducing assembly comprises one or more pressure reducing parts, and the pressure reducing parts are distributed at intervals along the circumferential direction.

Optionally, the number of the pressure reducing assemblies is n, each pressure reducing assembly comprises one pressure reducing part, and an included angle between two adjacent pressure reducing parts is an angle in a horizontal projection plane;

and/or the height interval between two adjacent pressure reducing assemblies is 2 m-3 m.

Optionally, the bin bottom wall is provided with at least one discharge gate, still includes the stirring device, the stirring device includes stirring blade and drive part, stirring blade rotationally install in the bottom wall of the bin, drive part with stirring blade is connected, is used for the drive stirring blade rotates around the axial.

Optionally, the storehouse body roof is provided with the feed inlet, still includes and spills the material device, spill the material device including drive division and spill the hopper, spill the hopper rotationally install in the feed inlet, spill the hopper include the shaft part with spill the hopper body, the shaft part with drive division is connected, drive division is used for the drive spill the hopper and rotate along the axial, spill the hopper body along keeping away from the direction slope downwardly extending of shaft part.

Optionally, a level gauge is further arranged at the top of the bin body;

and/or the top of the bin body is also provided with a steam spraying device;

and/or the side wall of the bin body is also provided with at least one explosion door, and the explosion door can be opened when the internal pressure of the bin body reaches a preset value;

and/or the side wall of the bin body is also provided with an exhaust device;

and/or, the inside of the bin body is also provided with a gas detection device;

and/or, the lateral wall of the storehouse body still is provided with the access hole for operating personnel passes through, still including install in access door of access hole department, the access door can open or seal the access hole, the access door is provided with the observation window.

The utility model provides a biomass raw material conveying device, which comprises the biomass raw material storage bin, wherein the bottom wall of the biomass raw material storage bin is provided with at least one discharge hole;

still including screw conveyer, scraper conveyor and the rotary feeder of connecting in order, screw conveyer's quantity is at least one, screw conveyer's pan feeding mouth with the discharge gate one-to-one intercommunication of living beings raw materials storage silo.

The biomass raw material conveying device comprises the biomass raw material storage bin, so that the biomass raw material conveying device has the same technical effects as the biomass raw material storage bin and is not described in detail herein.

Optionally, the screw conveyor comprises an outer shell and a screw blade rotatably arranged in the outer shell, wherein the outer edge of the screw blade is provided with a tooth part.

Optionally, the rotary feeder includes the casing, and rotationally install in the inside impeller of casing, the impeller includes the center pin, and a plurality of impeller blade, impeller blade is followed the circumference of center pin distributes, the outward flange of impeller blade with preset clearance has between the shells inner wall, the extending direction of impeller blade with preset contained angle has between the axial of center pin.

Optionally, the device further comprises a blowing device, at least one air inlet is formed in the side wall of the shell, and the blowing device is communicated with the air inlet;

and/or the value range of the preset included angle is 5-10 degrees.

Optionally, an expansion joint is also connected at the discharge port of the rotary feeder;

and/or the discharge port of the rotary feeder is also connected with a block valve.

Drawings

FIG. 1 is a schematic view of a biomass feedstock storage bin according to an embodiment of the present utility model

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic view of a biomass feedstock delivery device according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a rotary feeder of the biomass feedstock delivery apparatus of FIG. 3;

FIG. 5 is a schematic view of the structure of FIG. 2 at another angle;

wherein reference numerals in fig. 1-5 are described as follows:

10-a biomass raw material storage bin; 100-bin body; 101-a decompression section; 101 a-an air outlet hole; 100 a-a feed inlet; 102-a stirring device; 1021-kick-out blade; 1022-drive means; 103-a spreading device; 1031-a driving section; 1032-spreading hopper; 104-a level gauge; 105-spraying device; 106, an explosion door; 107-an exhaust device; 108-a gas detection device;

20-screw conveyor; 200-an outer shell; 201-helical blades;

30-a scraper conveyor;

40-a rotary feeder; 400-a housing; 400 a-air inlet; 401-impeller; 401 a-a central axis; 401 b-impeller blades;

50-blowing device;

60-expansion joint;

70-isolating valve.

Detailed Description

In order to make the technical solution of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings and specific embodiments.

The term "plurality" as used herein is typically more than two; and when "a plurality" is used to denote the number of a certain number of components, the number of components is not necessarily related to each other.

Referring to fig. 1-2, fig. 1 is a schematic structural diagram of an embodiment of a biomass raw material storage bin according to the present utility model; fig. 2 is a top view of fig. 1.

The utility model provides a biomass raw material storage bin 10, which comprises a bin body 100, wherein a storage cavity is formed in the bin body 100 and is used for accommodating biomass raw materials;

the pressure reducing part 101 is arranged in the bin body 100 and is fixed with the inner wall of the bin body 100, a pressure reducing cavity is formed in the pressure reducing part 101, air inlets are correspondingly formed in the side walls of the pressure reducing part 101 and the bin body 100, at least one side wall of the pressure reducing part 101 is provided with an air outlet hole 101a besides the side wall of the pressure reducing part 100, the air inlets are communicated with the air outlet hole 101a through the pressure reducing cavity,

the air supply device is communicated with the air inlet and is used for providing inert gas.

The biomass raw material storage bin 10 of the present utility model is additionally provided with a decompression portion 101 and a gas supply device, by which inert gas such as helium or the like is supplied to the inside of the bin body 100, specifically: helium is introduced into the decompression cavity through the air inlet hole, and then helium in the decompression cavity is introduced into the bin body 100 through the air outlet hole 101a, so that the biomass raw material evacuation function is achieved, the contact force generated by piling up biomass raw materials together due to gravity is reduced, the phenomenon of arch bridging of the materials is prevented, the risk of material blockage is avoided, the materials can be conveyed normally, and the stable operation of the biomass power generation system is ensured.

At the same time, it is understood that as the biomass feedstock accumulates, the pressure increases, causing the biomass feedstock to heat up, and over time, the rate of temperature rise increases, possibly exceeding safe thresholds. According to the utility model, the pressure reducing part 101 and the air supply device are arranged, and inert gas is provided for the interior of the bin body 100, so that the temperature of the interior of the bin body 100 can be controlled to prevent the temperature from exceeding a safety critical value, and the inert gas is introduced to dilute inflammable and explosive gas in the interior of the bin body 100, so that a safer environment is established in the interior of the bin body 100, the risk is reduced, and a fireproof effect is achieved; in addition, the inert gas is introduced during fire extinguishing.

Therefore, by arranging the pressure reducing part 101 and the air supply device, the biomass raw material storage device not only can solve the problem of arch bridging after stacking and compacting the biomass raw materials, but also can ensure the storage safety of the biomass raw materials.

The fixing manner of the pressure reducing portion 101 and the inner wall of the cartridge body 100 is not limited, and may be, for example, welded and fixed.

In order to better realize the technical effect of evacuating materials, the number of the pressure reducing parts 101 is three, the three pressure reducing parts 101 are distributed at intervals along the height direction and are staggered with each other along the circumferential direction, the height interval of two adjacent pressure reducing components is 2 m-3 m, and the included angle between the two adjacent pressure reducing parts 101 is 120 degrees in the horizontal projection plane.

As set up above, inert gas can blow into the storehouse body 100 inside along not co-altitude, different angles evenly, avoids appearing dead angle position for the living beings raw materials of each position homoenergetic obtains dispersing, prevents that the material from appearing the phenomenon of bridging of arching.

In practical application, according to different sizes of the bin body 100, the arrangement mode of the pressure reducing parts 101 can be adaptively adjusted, and the pressure reducing parts 101 positioned at the same height inside the bin body 100 are defined as one pressure reducing assembly, in the above embodiment, the number of the pressure reducing assemblies is three, each pressure reducing assembly comprises one pressure reducing part 101, and in a horizontal projection plane, an included angle between two adjacent pressure reducing parts 101 is 120 °; in practical application, the number of the pressure reducing components can be one or more according to different heights of the bin body 100, and the number of the pressure reducing components including the pressure reducing parts 101 can also be one or more according to different cross sectional areas of the bin body 100, i.e. one or more pressure reducing parts 101 can be arranged at the same height; if the number of each decompression assembly including the decompression portion 101 is still one, the number of decompression assemblies is four, at this time, the height interval of two adjacent decompression assemblies is still 2 m-3 m, and in the horizontal projection plane, the included angle between two adjacent decompression portions 101 can be 90 ° so as to cover one circle of the circumference of the bin body 100; in summary, when the number of pressure reducing assemblies is n, each pressure reducing assembly includes one pressure reducing portion 101, an included angle between adjacent two pressure reducing portions 101 is (360/n) ° in a horizontal projection plane.

When the cross-sectional area of the bin body 100 is larger, the same height may include a plurality of decompression portions 101, and the plurality of decompression portions 101 are also distributed at intervals along the circumferential direction, where the number of decompression portions 101 included in the same decompression assembly is defined as m, and an included angle between two adjacent decompression portions 101 in the same decompression assembly is (360/m) °.

It can be seen that the plurality of pressure reducing portions 101 are uniformly disposed on the inner wall of the cartridge body 100; in practical applications, it is also possible that the plurality of pressure reducing portions 101 are irregularly disposed on the inner wall of the bin body 100, and the technical effect of preventing the bridging of the material can be achieved. Of course, the pressure reducing portion 101 is uniformly disposed on the inner wall of the chamber body 100, and the inert gas can be more uniformly blown into the chamber body 100, which is a more preferable technical solution.

With continued reference to fig. 1-2, in the present utility model, the bottom wall of the bin body 100 is provided with at least one discharge hole, and further includes a material stirring device 102, where the material stirring device 102 includes a material stirring blade 1021 and a driving component 1022, the material stirring blade 1021 is rotatably mounted on the bottom wall of the bin body 100, and the driving component 1022 is connected to the material stirring blade 1021 and is used for driving the material stirring blade 1021 to rotate around an axial direction.

According to the biomass raw material storage bin 10, the material stirring device 102 is arranged, so that on one hand, the biomass raw material can be further evacuated, the phenomenon of arching and bridging of the materials is prevented, and the risk of blocking the materials is avoided; on the other hand, the material stirring device 102 rotates around the axial direction, and can push the biomass raw material to the discharge port in the blanking process, so that the biomass raw material smoothly enters the subsequent equipment.

The manner in which the material stirring device 102 is mounted on the bottom wall of the bin body 100 is not limited, for example, in the embodiment, the material stirring blade 1021 is provided with a rotating shaft, the rotating shaft comprises a large-diameter section and a small-diameter section which are axially connected, a step surface is formed between the large-diameter section and the small-diameter section, the diameter of the small-diameter section is gradually reduced along the direction away from the large-diameter section, so that the rotating shaft is conveniently mounted on the bin body 100, the bottom wall of the bin body 100 is provided with a mounting hole, the small-diameter section is rotatably inserted in the mounting hole from inside to outside, the step surface is supported on the bottom wall of the bin body 100, and the driving component 1022 is connected with the small-diameter section to drive the material stirring blade 1021 to rotate; or, the material stirring blade 1021 is provided with a rotating shaft, the bottom wall of the bin body 100 is provided with a mounting sleeve extending downwards, the rotating shaft is partially inserted into the mounting sleeve, and the material stirring device further comprises a connecting bearing, wherein the connecting bearing is arranged between the mounting sleeve and the rotating shaft.

The driving part 1022 may be a driving motor.

As can be seen from fig. 2, in the utility model, the material stirring blade 1021 comprises two blades, the number of the blades is consistent with that of the discharge holes, the two blades are arranged in a central symmetry manner, the axes of the blades are arc-shaped, and the free ends of the blades are provided with hook-shaped structures, so that biomass raw materials can be conveniently and uniformly pushed to the discharge holes, and the working efficiency is improved.

Of course, in practical application, the number of the blades is not limited, and at least one blade can be used according to the different numbers of the discharge ports.

In addition, in the utility model, the inner wall of the bin body 100 is kept smooth, and the bin body 100 adopts a cylindrical structure, so that the material flow is smoother; the side walls of the bin body 100 are formed by welding steel plates.

With continued reference to fig. 1, in the present utility model, a top wall of a bin body 100 is provided with a feed inlet 100a, and further includes a spreading device 103, where the spreading device 103 includes a driving portion 1031 and a spreading hopper 1032, the spreading hopper 1032 is rotatably mounted on the feed inlet 100a, the spreading hopper 1032 includes a shaft portion and a spreading hopper body, the shaft portion is connected to the driving portion 1031, the driving portion 1031 is used for driving the spreading hopper 1032 to rotate in an axial direction, and the spreading hopper body may have a U-shaped structure and extends obliquely downward in a direction away from the shaft portion.

Thus, in the feeding process, the driving part 1031 drives the scattering hopper 1032 to rotate around the axis, the biomass raw material falls inside the scattering hopper body and uniformly disperses in the bin body 100 under the action of centrifugal force, so that the biomass raw material is prevented from being accumulated under the feeding port 100a in a concentrated manner, and the utilization rate of the internal space of the bin body 100 is improved.

The driving unit 1031 may be a driving motor, and the set rotational speed may be 2r/min to 5r/min.

With continued reference to fig. 1, in the present utility model, a level gauge 104 is further disposed on the top of the bin body 100, for monitoring the height of the material in the bin body 100 in real time, and when the height of the material in the bin body 100 reaches the upper limit, the front end can be controlled to stop feeding, or the rear end can be controlled to accelerate the discharging speed; when the material in the bin body 100 is lower than the lower limit of the height, the front end can be controlled to continuously feed, and the rear end can be stopped from discharging.

In the present utility model, the top of the bin 100 is further provided with a spraying device 105.

The spraying device 105 specifically adopts steam spraying, and when the internal temperature of the bin body 100 is higher than a preset value, the spraying device 105 can be used as a fire-fighting preventive measure to reduce the internal temperature of the bin body 100 and prevent the occurrence of fire risk; the sprinkler 105 may also function to extinguish a fire when a fire has occurred inside the cartridge body 100.

In the utility model, the side wall of the bin body 100 is also provided with two explosion-proof doors 106, the explosion-proof doors 106 can be opened when the internal pressure of the bin body 100 reaches a preset value, the explosion-proof effect is achieved, the internal pressure of the bin body 100 is timely reduced,

of course, in practical applications, the number of explosion vents 106 is not limited, for example, the number of explosion vents 106 may be at least one.

In the present utility model, the side wall of the bin body 100 is further provided with an exhaust device 107, which may be specifically an exhaust fan, so as to perform ventilation and reduce the internal temperature of the bin body 100.

In the present utility model, the top of the bin body 100 is further provided with a gas detecting device 108 for detecting the concentration of the gas inside the bin body 100, such as carbon monoxide, oxygen, helium, etc., so as to ensure that the inside of the bin body 100 is maintained in a safe environment.

In the utility model, the side wall of the bin body 100 is also provided with an access opening for operators to pass through, and the bin body also comprises an access door arranged at the access opening, wherein the access door can open or seal the access opening to prevent leakage; the access door is also provided with an observation window so that an operator can observe the internal condition of the bin body 100 in time outside the bin body 100.

Referring to fig. 3, fig. 3 is a schematic structural diagram of a biomass feedstock conveying device according to an embodiment of the present utility model.

The utility model provides a biomass raw material conveying device, which comprises the biomass raw material storage bin 10, wherein the bottom wall of the biomass raw material storage bin 10 is provided with at least one discharge hole;

the biomass raw material storage bin further comprises a screw conveyor 20, a scraper conveyor 30 and a rotary feeder 40 which are sequentially connected, wherein the number of the screw conveyors 20 is at least one, and a feed inlet of the screw conveyor 20 is communicated with a discharge outlet of the biomass raw material storage bin 10 in a one-to-one correspondence manner.

The biomass raw material conveying device of the present utility model includes the biomass raw material storage bin 10, so that the biomass raw material conveying device has the same technical effects as the biomass raw material storage bin 10, and will not be described herein.

The screw conveyor 20 includes an outer casing 200, where the outer casing 200 may be a closed shell structure or a U-shaped groove structure, and further includes a screw blade 201 rotatably disposed inside the outer casing 200, and a driving motor connected to an axial end of the screw blade 201 to drive the screw blade 201 to rotate, so as to perform a function of conveying materials.

In addition, the tooth parts are additionally arranged at the outer edges of the spiral blades 201, so that the spiral blades 201 have the function of crushing materials, prevent the materials from caking and facilitate the transmission of the materials.

The scraper conveyor 30 is well known in the art, and will not be described herein.

Referring to fig. 4-5, fig. 4 is a schematic structural diagram of a rotary feeder in the biomass raw material conveying device of fig. 3; fig. 5 is a schematic view of the structure of fig. 2 at another angle.

In the utility model, a rotary feeder 40 comprises a shell 400 and an impeller 401 rotatably arranged in the shell 400, wherein the impeller 401 comprises a central shaft 401a and a plurality of impeller blades 401b, the central shaft 401a is connected with a driving motor, the driving motor drives the central shaft 401a to rotate along the axial direction, the impeller blades 401b are arranged on the peripheral wall of the central shaft 401a and are circumferentially distributed in a circle, a preset gap is formed between the outer edge of each impeller blade 401b and the inner wall of the shell 400, and a preset included angle is formed between the extending direction of each impeller blade 401b and the axial direction of the central shaft 401 a.

The rotary feeder 40 has a simple internal structure, is easy to replace, and can drive the impeller 401 to rotate reversely through the driving motor when the problem of blockage occurs, so that the material is conveyed smoothly. Meanwhile, a preset gap is formed between the outer edge of the impeller blade 401b and the inner wall of the casing 400, and the preset gap is as small as possible on the premise that the normal rotation of the impeller 401 is not affected, so that gas generated by the back-end equipment is prevented from gradually reversely flowing into the bin body 100 from the gap between the impeller blade 401b and the inner wall of the casing 400, and dust emission is prevented. In practice, it is found that if the impeller blade 401b extends along the axial direction of the central shaft 401a, when the material falls on the outer edge of the impeller blade 401b, because the gap between the outer edge of the impeller blade 401b and the inner wall of the casing 400 is smaller, along with the rotation of the impeller blade 401b, the material can be extruded between the outer edge of the impeller blade 401b and the inner wall of the casing 400, so that the impeller 401 is blocked and cannot normally operate, therefore, the utility model sets a preset included angle between the extending direction of the impeller blade 401b and the axial direction of the central shaft 401a, and can provide an oblique tangential force for the material when the material is rotated and fed, so that the material is better pushed to the discharge port, and the normal feeding of the rotary feeder 40 is ensured.

Wherein, the preset included angle is defined as alpha, and the value range of alpha can be 5-10 degrees.

With continued reference to fig. 4-5, the present utility model further includes a blowing device 50, at least one air inlet 400a is provided on a sidewall of the housing 400, and the blowing device 50 is in communication with the air inlet 400 a.

As set forth above, the blowing device 50 can blow blowing gas into the housing 400, and on the one hand, clean the material in the rotary feeder 40; on the other hand, the material is fed to subsequent equipment by positive pressure as material feeding wind, so that the material is convenient to transport.

In order to improve the cleaning and feeding effects of the blowing device 50, the number of the air inlets 400a may be plural, and in the present utility model, eight air inlets 400a are provided on the side wall of the housing 400 and uniformly arranged on the axial end wall and the peripheral wall of the housing 400.

With continued reference to fig. 2, in the present utility model, an expansion joint 60 is further connected to the discharge port of the rotary feeder 40.

Since the rear end of the rotary feeder 40 is generally connected to the boiler and has a relatively high temperature, the expansion joint 60 is provided to sufficiently absorb thermal expansion of the boiler interface, thereby preventing the temperature of the rear end boiler from being transferred to the front end storage and conveying equipment and preventing the front end storage and conveying equipment from cracking.

In addition, the utility model is also connected with a block valve 70 at the discharge port of the rotary feeder 40 to realize the connection and disconnection between the rotary feeder 40 and the boiler, and if the front-end storage and conveying equipment is required to be overhauled, the block valve 70 can be closed for equipment maintenance.

The above description of the biomass raw material storage bin and the conveying device provided by the utility model is provided in detail, and specific examples are applied herein to illustrate the principles and embodiments of the utility model, and the above examples are only used to help understand the method and core ideas of the utility model. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (11)

1. The biomass raw material storage bin is characterized by comprising a bin body (100) and at least one decompression part (101), wherein the decompression part (101) is arranged inside the bin body (100) and is fixed with the inner wall of the bin body (100), a decompression cavity is formed inside the decompression part (101), air inlets are correspondingly formed in the decompression part (101) and the side walls fixed on the bin body (100), in the decompression part (101), in addition to the side walls fixed on the bin body (100), at least one side wall is also provided with an air outlet hole (101 a), the air inlets and the air outlet holes (101 a) are communicated through the decompression cavity,

the air supply device is communicated with the air inlet hole and is used for providing inert gas.

2. The biomass raw material storage bin according to claim 1, wherein the pressure reducing parts (101) located at the same height inside the bin body (100) form one pressure reducing assembly, the number of the pressure reducing assemblies is one or more, the pressure reducing assemblies are distributed at intervals along the height direction, the pressure reducing assembly comprises one or more pressure reducing parts (101), and the pressure reducing parts (101) are distributed at intervals along the circumferential direction.

3. The biomass feedstock storage silo according to claim 2, wherein the number of pressure relief assemblies is n, each pressure relief assembly comprising one pressure relief portion (101), the angle between two adjacent pressure relief portions (101) being (360/n) ° in a horizontal projection plane;

and/or the height interval between two adjacent pressure reducing assemblies is 2 m-3 m.

4. A biomass raw material storage silo according to any of claims 1-3, wherein the bottom wall of the silo body (100) is provided with at least one discharge port, and further comprising a stirring device (102), the stirring device (102) comprises stirring blades (1021) and a driving component (1022), the stirring blades (1021) are rotatably mounted on the bottom wall of the silo body (100), and the driving component (1022) is connected with the stirring blades (1021) and is used for driving the stirring blades (1021) to rotate around the axial direction.

5. A biomass raw material storage silo according to any of claims 1-3, wherein the silo body (100) top wall is provided with a feed inlet (100 a), and further comprises a spreading device (103), the spreading device (103) comprises a driving part (1031) and a spreading hopper (1032), the spreading hopper (1032) is rotatably mounted at the feed inlet (100 a), the spreading hopper (1032) comprises a shaft part and a spreading hopper body, the shaft part is connected with the driving part (1031), the driving part (1031) is used for driving the spreading hopper (1032) to rotate along the axial direction, and the spreading hopper body extends obliquely downwards along the direction far away from the shaft part.

6. A biomass feedstock storage silo according to any of claims 1-3, wherein the top of the silo body (100) is also provided with a level gauge (104);

and/or the top of the bin body (100) is also provided with a steam spraying device (105);

and/or the side wall of the bin body (100) is also provided with at least one explosion door (106), and the explosion door (106) can be opened when the internal pressure of the bin body (100) reaches a preset value;

and/or, the side wall of the bin body (100) is also provided with an exhaust device (107);

and/or, the interior of the bin body (100) is also provided with a gas detection device (108);

and/or, the lateral wall of the storehouse body (100) still is provided with the access hole for operating personnel passes through, still including install in access door department, the access door can open or seal the access hole, the access door is provided with the observation window.

7. A biomass raw material conveying device, characterized by comprising the biomass raw material storage bin (10) according to any one of claims 1-6, wherein at least one discharge hole is arranged on the bottom wall of the biomass raw material storage bin (10);

still including screw conveyer (20), scraper conveyor (30) and rotary feeder (40) that connect in order, the quantity of screw conveyer (20) is at least one, the pan feeding mouth of screw conveyer (20) with the discharge gate one-to-one intercommunication of living beings raw materials storage silo (10).

8. The biomass feedstock conveying apparatus according to claim 7, wherein said screw conveyor (20) comprises an outer housing (200), and a screw blade (201) rotatably provided inside said outer housing (200), an outer edge of said screw blade (201) being provided with teeth.

9. The biomass feedstock conveying apparatus according to claim 7, wherein said rotary feeder (40) comprises a housing (400), and an impeller (401) rotatably mounted inside said housing (400), said impeller (401) comprising a central shaft (401 a), and a plurality of impeller blades (401 b), said impeller blades (401 b) being distributed along a circumferential direction of said central shaft (401 a), a predetermined gap being provided between an outer edge of said impeller blades (401 b) and an inner wall of said housing (400), and a predetermined angle being provided between an extending direction of said impeller blades (401 b) and an axial direction of said central shaft (401 a).

10. The biomass feedstock delivery device according to claim 9, further comprising a blowing device (50), said housing (400) sidewall being provided with at least one air inlet (400 a), said blowing device (50) being in communication with said air inlet (400 a);

and/or the value range of the preset included angle is 5-10 degrees.

11. The biomass raw material conveying device according to claim 7, wherein an expansion joint (60) is further connected to a discharge port of the rotary feeder (40);

and/or the discharge port of the rotary feeder (40) is also connected with a block valve (70).