Straw biomass formed particle gasification furnace

Abstract

The utility model provides a straw biomass formed particle gasification furnace which comprises a furnace body, the furnace body is provided with a hollow cavity, the cavity comprises a feeding space and a reaction space, and a feeding mechanism, a plurality of groups of feeding mechanisms, a plurality of groups of gas-liquid separators and a stirring mechanism are arranged in the feeding space. A separator is arranged in the reaction space, and an ash removal device and a base are arranged at the bottom of the reaction space. The feeding mechanism enables fed materials to fall on the feeding mechanism according to a certain state. The multiple sets of feeding mechanisms are used for conveying straw biomass formed particles from top to bottom. And the plurality of groups of gas-liquid separators are used for gas-liquid separation of gasified gas after reaction. And the material shifting mechanism enables the plurality of separation chambers in the separator to be filled with materials. And the ash removal device is used for receiving ash residues after thermal reaction of the straw biomass formed particles. According to the straw biomass formed particle gasification furnace, materials can be uniformly discharged, the combustion effect is good, and byproducts can be conveniently recycled.

Description

TECHNICAL FIELD

[0001] The utility model relates to a thermal energy machinery technical field especially relates to a straw biomass shaped particle gasification furnace. BACKGROUND

[0002] It is a common industrial production method to produce monosaccharide by hydrolyzing plant fiber raw materials with concentrated sulfuric acid, which involves multiple heat processes in the production process. For example, plant fiber raw material drying, post-hydrolysis, sulfuric acid concentration, etc. require heat sources such as flue gas, steam, and heat-conducting oil for heating, and the fuel for producing heat sources is diverse, but under the premise of protecting the environment and reducing carbon emissions, using biomass as fuel is the first choice. The ways of biomass combustion heating include direct combustion, straw biomass shaped particles, and biomass gasification, and the use of biomass gasification for boiler combustion can avoid the problem of fouling of heat exchange equipment caused by high ash content of biomass, and it is also increasingly common.

[0003] The gasification furnace used for biomass gasification includes fixed bed gasification furnace and fluidized bed gasification furnace, wherein the fixed bed gasification furnace is divided into down-draft gasification furnace and up-draft gasification furnace. The up-draft gasification furnace: the gasification air flows from bottom to top in the furnace, which is suitable for some wet materials. The down-draft gasification furnace: the gasification air flows from top to bottom in the furnace body under the action of the fan, which is suitable for dry materials. For small and medium-sized boilers, the up-draft gasification furnace has the advantages of simple structure, low exhaust temperature, and low ash content in gasification gas, but it also has obvious shortcomings, such as difficult to control the internal process, easy to produce tar and bridging. From the combustion characteristics, biomass can be divided into woody biomass and herbaceous biomass. Woody biomass is dense due to lignification, has the characteristics of good resistance to burning and good support in the gasification furnace, and can be directly used as the raw material of the gasification furnace. Herbaceous biomass such as straw has the characteristics of poor resistance to burning and poor support in the gasification furnace due to its loose structure, and is difficult to be directly used as the raw material of the gasification furnace. First, the herbaceous biomass is prepared into biomass shaped particles, and then gasification is carried out. However, the existing gasification furnace is difficult to uniformly feed the biomass shaped particles and completely burn them.

[0004] Therefore, it is necessary to provide a straw biomass shaped particle gasification furnace capable of uniformly feeding materials and having good combustion effect. Utility model content

[0005] The utility model discloses a straw biomass shaped particle gasification furnace capable of uniformly feeding materials and having good combustion effect.

[0006] To achieve the above-mentioned purpose, the utility model provides a straw biomass shaped particle gasification furnace, which comprises:

[0007] The furnace body is provided with a hollow cavity, and the cavity comprises a feeding space and a reaction space,

[0008] A feeding mechanism is arranged at the top of the furnace body for feeding the straw biomass shaped particles, and includes a uniform feeding assembly for uniform feeding, which is arranged in the cavity;

[0009] A plurality of feeding mechanisms are arranged in the feeding space at the first preset intervals from top to bottom for conveying the straw biomass shaped particles from top to bottom, and each feeding mechanism includes a conveying belt, and the straw biomass shaped particles are uniformly arranged on the conveying belt in the width direction of the conveying belt by the uniform feeding assembly;

[0010] A plurality of gas-liquid separators are arranged in the feeding space at the first preset intervals from top to bottom, and each feeding mechanism is provided with a gas-liquid separator at the lower end;

[0011] A stirring mechanism is arranged in the cavity and located at one end of the feeding space close to the reaction space, and includes a stirring plate arranged in rotation in the cavity;

[0012] A separator is arranged in the reaction space and includes a plurality of separation compartments, each of which is used to fill the straw biomass shaped particles and perform thermal reaction;

[0013] An ash removal device is arranged below the separator for supporting the straw biomass shaped particles in the separation compartments and receiving the ash after the thermal reaction of the straw biomass shaped particles;

[0014] A base is used to support the ash removal device and is provided with an air inlet communicated with the cavity.

[0015] Compared with the prior art, the straw biomass shaped particle gasification furnace has the feeding space of the upper section and the reaction space of the lower section arranged in the cavity of the furnace body. The feeding space is provided with the feeding mechanism, the plurality of feeding mechanisms, the plurality of gas-liquid separators and the material stirring mechanism. The feeding mechanism is used for feeding the material to the conveying belt of the uppermost feeding mechanism, and the feeding mechanism can uniformly lay the material on the conveying belt along the width direction of the conveying belt, so that the material is uniformly discharged and can be better filled in the separator for combustion. The material is the straw biomass shaped particle. The plurality of feeding mechanisms convey the material from top to bottom. The gas-liquid separator is arranged below each feeding mechanism. The straw biomass shaped particle in the traditional overall stacking state of the drying area becomes the layered distribution on the conveying belt, realizes the accurate automatic control of the feeding, eliminates the bridging phenomenon of the straw biomass shaped particle in the drying area, and has better thermal reaction effect. The reaction space includes the pyrolysis zone, the reduction zone and the oxidation zone, and the separator is arranged in the pyrolysis zone and the reduction zone. The separator includes a plurality of separation compartments, each of which is used for filling the straw biomass shaped particle and performing thermal reaction. The plurality of separation compartments in the separator are filled with the straw biomass shaped particle through the material stirring mechanism arranged on the separator. The straw biomass shaped particle in the traditional overall stacking state of the reduction zone and the pyrolysis zone becomes the distributed stacking of the honeycomb separation compartment, and the formation of the bridging is prevented. At the same time, the gas-liquid separator arranged between the conveying belt can separate and purify the tar in the gasification gas like the tray of the rectifying column and recycle and utilize the tar to produce by-products. The structure of the straw biomass shaped particle gasification furnace overcomes the shortcomings that the internal process of the traditional suction type gasification furnace is difficult to control, tar and bridging are easily generated, and lays a foundation for the popularization and application of the furnace type in the straw biomass shaped particle gasification furnace.

[0016] Preferably, the feeding mechanism further includes a feeding motor and a driving assembly, the feeding motor is installed outside the furnace body, the driving assembly is installed at the output end of the feeding motor and extends into the cavity and is connected with the material uniformizing assembly, the driving assembly is sealingly arranged between the furnace body, the feeding motor is actuated to drive the driving assembly to drive the material uniformizing assembly to rotate on the conveying belt, so that the straw biomass shaped particle is uniformly distributed on the conveying belt along the width direction of the conveying belt.

[0017] Preferably, the feeding mechanism comprises a feeding motor and a conveying assembly, the conveying belt is arranged on the conveying assembly, the feeding motor is installed outside the furnace body, the conveying assembly comprises a driving roller which extends out of the furnace body and is connected with the feeding motor, the feeding motor is actuated to drive the conveying assembly to drive the conveying belt to convey; the starting end of each conveying belt is provided with a first material blocking plate to prevent the straw biomass briquettes from falling into the gap between the conveying belt and the furnace wall; the second material blocking plate is arranged between the end of the conveying belt and the gas-liquid separator to prevent the straw biomass briquettes from entering the space between the conveying belt and the gas-liquid separator.

[0018] Preferably, the end of each conveying belt is provided with a discharging space for discharging the straw biomass briquettes, the discharging space is provided with an elastic baffle, the straw biomass briquettes act on the elastic baffle and drive the elastic baffle to elastically move, so that the straw biomass briquettes fall into the next layer of conveying belt through the discharging space.

[0019] Preferably, each gas-liquid separator comprises a plurality of gas-liquid separation assemblies, the gas-liquid separation assembly comprises a filler area for gas-liquid separation, the filler area is filled with fillers, the bottom of the filler area is provided with an oil collector for collecting oil, one end of the filler area is provided with an air inlet interval for air inlet, the other end of the filler area is provided with an air outlet interval for air outlet, the air inlet interval and the air outlet interval are provided with a closed interval, the gas-liquid entering from the air inlet interval is separated through the filler area by the closed interval, the separated gas is discharged from the air outlet interval, and the separated liquid falls into the oil collector.

[0020] Preferably, the gas-liquid separator further comprises a collector for collecting tar, the collector is arranged on the outer wall of the furnace body and abuts against the outer wall of the furnace body; the collector comprises a manifold connected to the oil collector, the tar in the oil collector flows into the collector through the manifold, and the collector is further provided with a valve which can be opened and closed.

[0021] Preferably, the raking mechanism further comprises a raking power assembly, a driving gear and a support assembly, the raking power assembly is installed outside the furnace body and its output end extends into the furnace body and is connected with the driving gear, the raking power assembly and the furnace body are sealingly arranged, the support assembly is arranged in the cavity for supporting the raking plate, the raking plate is rotatably connected to the support assembly, the raking plate is provided with a gear ring engaged with the driving gear along the circumferential side of the raking plate, and the raking power assembly is actuated to drive the driving gear and the raking plate to engage and transmit.

[0022] Preferably, the plurality of separation intervals make the separator in a honeycomb shape, each separation interval is hexagonal, and the gap between the separation interval adjacent to the inner wall of the furnace body and the inner wall of the furnace body is filled with refractory mortar, so that the separator and the furnace body form an integrated structure.

[0023] Preferably, the ash removal device comprises an ash removal assembly, a rotating assembly and an ash chute, the ash removal assembly is installed at the output end of the rotating assembly, a scraping plate is arranged near the ash removal assembly inside the furnace body, the ash removal assembly continuously rotates under the driving of the rotating assembly to drive the reacted ash to fall on both sides of the ash removal assembly, and the ash falls into the ash chute under the action of the scraping plate, and a ventilation hole is formed on the ash removal assembly; the ash chute extends out of the furnace body, the ash chute comprises a supporting wall, a water seal wall and a flanged water seal wall, the supporting wall is provided with a water passing hole for water passing, and the supporting wall, the water seal wall and the flanged water seal wall cooperate to isolate the air entering from the air inlet.

[0024] Preferably, the cavity is further provided with a first monitoring assembly and a second monitoring assembly, the first monitoring assembly is installed in the feeding space and close to the feeding mechanism, and the first monitoring assembly is used for monitoring the material falling on the first layer conveying belt; the second monitoring assembly is installed in the reaction space and located between the material stirring mechanism and the separator, and the second monitoring assembly is used for monitoring the amount of material in each separated chamber. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 is a schematic diagram of the internal structure of the straw biomass shaped particle gasification furnace from one angle according to an embodiment of the present application.

[0027] Figure 2 is Figure 1 is a schematic diagram of the internal structure of the straw biomass shaped particle gasification furnace from another angle.

[0028] Figure 3 is Figure 1 is a schematic diagram of the gas-liquid separation structure of the gas-liquid separator.

[0029] Figure 4 is Figure 1 is a schematic diagram of the structure of the separator in cross section.

[0030] BRIEF DESCRIPTION OF DRAWINGS

[0031] 100, straw biomass briquetting gasifier; 1001, furnace body; 1002, base; 101, cavity; 102, feeding space; 103, reaction space; 1031, pyrolysis zone; 1032, reduction zone; 1033, oxidation zone; 104, exhaust hole; 105, first material blocking plate; 106, second material blocking plate; 107, elastic blocking plate; 1071, discharging space; 108, guide plate; 109, air inlet pipe; 1091, air inlet; 110, feeding port;

[0032] 10, feeding mechanism; 11, feeding motor; 12, driving assembly; 13, material uniformizing assembly;

[0033] 20, feeding mechanism; 21, conveying belt; 22, feeding motor; 23, driving roller;

[0034] 30, gas-liquid separator; 31, manifold; 32, collector; 33, valve; 301, gas-liquid separation structure; 34, gas-liquid separation assembly; 341, air inlet section; 342, air outlet section; 343, closed section; 344, filler section; 345, oil collector;

[0035] 40, material pushing mechanism; 41, material pushing power assembly; 42, driving gear; 43, material pushing plate; 431, gear ring; 44, support assembly; 441, rotating shaft;

[0036] 50, separator; 501, gap; 51, separation chamber; 52, separation plate;

[0037] 60, ash removal device; 61, ash removal assembly; 611, ventilation hole; 612, ash scraping plate; 62, ash chute; 621, support wall; 6211, water passage; 622, water seal wall; 623, turned-up water seal wall; 624, water seal line; 63, rotating assembly; 631, rolling support seat;

[0038] 70, monitoring device; 71, first monitoring assembly; 72, second monitoring assembly. DETAILED DESCRIPTION

[0039] In order to illustrate the technical content and structural features of the present application, further description will be made in combination with the embodiments and the accompanying drawings.

[0040] Please refer to Figure 1 and Figure 2The utility model provides a kind of straw biomass shaped particle gasification furnace 100, including furnace body 1001, hollow cavity 101 is provided in furnace body 1001, cavity 101 includes feeding space 102 and reaction space 103. Feeding space 102 is provided with feeding mechanism 10, feeding mechanism 20, gas-liquid separator 30 and poking mechanism 40. Reaction space 103 is provided with separator 50, and the bottom of separator 50 is provided with ash removal device 60. Specifically, feeding mechanism 10 is arranged at the top of furnace body 1001, for the feeding of straw biomass shaped particle, and feeding mechanism 10 includes material uniformizing assembly 13 for material uniformizing, which is located in cavity 101, so that the material can be evenly dropped on the conveying belt 21. Multiple feeding mechanisms 20 are uniformly distributed in the feeding space 102 from top to bottom at a first preset interval, for conveying the straw biomass shaped particle from top to bottom. Feeding mechanism 20 includes conveying belt 21, and the straw biomass shaped particle is uniformly distributed on the conveying belt 21 in the width direction of the conveying belt 21 by the material uniformizing assembly 13. The straw biomass shaped particle in the conventional dry area in a whole stacked state becomes a layered distribution on the conveying belt 21, achieving accurate automatic control of feeding, eliminating the bridging phenomenon of the straw biomass shaped particle in the dry area, and achieving better thermal reaction effect. The dry area is the feeding space 102 in the cavity 101. The material is laid on each conveying belt 21, and the heat of the bottom combustion is also beneficial to the drying of the material in the feeding space 102, so that the thermal reaction effect of the material is better. Multiple gas-liquid separators 30 are uniformly distributed in the feeding space 102 from top to bottom at a first preset interval, and each feeding mechanism 20 is provided with a gas-liquid separator 30 at the lower end. The gas-liquid separator 30 can collect tar according to actual use needs. The poking mechanism 40 is arranged in the cavity 101 and located at one end of the feeding space 102 close to the reaction space 103, and the poking mechanism 40 includes a poking plate 43 rotatably arranged in the cavity 101, and a gear ring 431 is further arranged on the outer circle of the poking plate 43. A guide plate 108 for discharging is arranged at one end of the bottom gas-liquid separator 30, and the material is discharged from the guide plate 108 and then passes through the slot of the poking mechanism 40 to enter the separator 50. The separator 50 is arranged in the reaction space 103 and includes multiple separation chambers 51, each of which is used to fill the straw biomass shaped particle and perform thermal reaction. During the filling process, the straw biomass shaped particle falls downward to fill the honeycomb separation chamber 51 below, and the straw biomass shaped particle exceeding the poking plate 43 is pushed into the honeycomb separation chamber 51 of the partition wall by the rotating poking plate 43. Due to the continuous circumferential conveying of the poking plate 43, this process will continue until all the honeycomb separation chambers 51 are filled. When all the honeycomb separation chambers 51 are filled, the straw biomass shaped particle continues to fall down and exceeds the honeycomb separation chamber 51 by a certain height, which will trigger the sensing of the second monitoring assembly 72, so that the control system responds accordingly.The ash removal device 60 is arranged below the separator 50, and is used for supporting the straw biomass briquette in the compartment 51 and receiving the ash after the straw biomass briquette is heated.

[0041] Compared with the prior art, the straw biomass briquette gasification furnace 100 has the following advantages: the cavity 101 of the furnace body 1001 is provided with the upper feeding space 102 and the lower reaction space 103; the feeding mechanism 10, the plurality of feeding mechanisms 20, the plurality of gas-liquid separators 30 and the stirring mechanism 40 are arranged in the feeding space 102; the feeding mechanism 10 is used for feeding the material to the conveying belt 21 of the uppermost feeding mechanism 20, and the feeding mechanism 10 can uniformly distribute the material on the conveying belt 21 along the width direction of the conveying belt 21, so that the material is uniformly distributed, and the subsequent filling in the separator 50 is better; the material is the straw biomass briquette; the plurality of feeding mechanisms 20 convey the material from top to bottom; the gas-liquid separator 30 is arranged below each feeding mechanism 20; the straw biomass briquette in the traditional dry area in the whole accumulation state is changed into the layered distribution on the conveying belt 21, the accurate automatic control of the feeding is realized, the bridging phenomenon of the straw biomass briquette in the dry area is avoided, and the thermal reaction effect is better; the reaction space 103 includes the pyrolysis zone 1031, the reduction zone 1032 and the oxidation zone 1033, and the separator 50 is arranged in the pyrolysis zone 1031 and the reduction zone 1032; the separator 50 includes a plurality of compartments 51, and each compartment 51 is used for filling the straw biomass briquette and performing the thermal reaction; the plurality of compartments 51 in the separator 50 are filled with the straw biomass briquette by the stirring mechanism 40 arranged on the separator 50; the straw biomass briquette in the traditional reduction zone 1032 and pyrolysis zone 1031 in the whole accumulation state is changed into the distributed accumulation in the honeycomb compartment 51, and the bridging is prevented; meanwhile, the gas-liquid separator 30 arranged between the conveying belt 21 can separate and purify the tar in the gasification gas on line like the tray of the rectifying column, and the tar is recycled to produce the by-product; the structure of the straw biomass briquette gasification furnace 100 overcomes the shortcomings of the traditional suction type gasification furnace, such as difficult control of the internal process, easy generation of tar and bridging, and lays a foundation for the popularization and application of the furnace type in the straw biomass briquette gasification furnace 100; the straw biomass briquette gasification furnace 100 can uniformly distribute the material, has good combustion effect, and is convenient for recycling the by-product.

[0042] Please refer to Fig Figure 1 and Figure 2In some optional embodiments, the feeding mechanism 10 further comprises a feeding motor 11 and a driving assembly 12. The feeding motor 11 is installed outside the furnace body 1001 to provide power for uniform feeding. The driving assembly 12 is installed at the output end of the feeding motor 11 and extends into the cavity 101 to connect with the uniform feeding assembly 13, and the driving assembly 12 is sealingly arranged between the furnace body 1001. The feeding motor 11 is actuated to drive the driving assembly 12 to rotate the uniform feeding assembly 13 on the conveying belt 21, so that the straw biomass briquettes are uniformly distributed on the conveying belt 21 along the width direction of the conveying belt 21. The driving assembly 12 comprises a bearing seat, a control rod and other matched components. The uniform feeding assembly 13 comprises a uniform feeding plate connected to the control rod. Specifically, according to the gas production per unit time, the feeding amount of the straw biomass briquettes per unit time is converted, and then the feeding amount is converted into the thickness of the straw biomass briquette layer on the conveying belt 21 according to the speed and width of the conveying belt 21, and then the feeding motor 11 is started to drive the control rod to advance or retreat a certain stroke, so that the distance between the uniform feeding plate and the conveying belt 21 is equal to the thickness. After the straw biomass briquettes fall from the feeding port 110 of the feeding mechanism 10 to the starting end of the first layer of the conveying belt 21, they are brought to the front of the uniform feeding plate by the conveying belt 21 and are pushed by the uniform feeding plate along the width direction of the conveying belt 21 to achieve the purpose of uniform spreading on the conveying belt 21, and finally the automatic control of the feeding amount is realized.

[0043] Referring to Figure 1 and Figure 2In some optional embodiments, the feeding mechanism 20 comprises a feeding motor 22, a speed reducer and a conveying assembly. The conveying belts 21 are arranged on the conveying assembly, the feeding motor 22 is arranged outside the furnace body 1001, the speed reducer is connected to the feeding motor 22, and the conveying assembly comprises a driving roller 23 extending out of the furnace body 1001 and connected to the feeding motor 22, and a plurality of transmission rollers rotatably arranged in the furnace body 1001. The feeding motor 22 is actuated to drive the conveying assembly to convey the conveying belts 21. The conveying belts 21 are metal mesh belt type conveying belts 21, such as type B mesh belts. The starting end of each conveying belt 21 is provided with a first material blocking plate 105 to prevent the straw biomass shaped particles from falling into the gap between the conveying belt 21 and the furnace wall. The end of the conveying belt 21 is provided with a second material blocking plate 106 between the conveying belt 21 and the gas-liquid separator 30 to prevent the straw biomass shaped particles from entering the space between the conveying belt 21 and the gas-liquid separator 30. On the other hand, the end of each conveying belt 21 is provided with a discharging space 1071 for discharging the straw biomass shaped particles. The discharging space 1071 is provided with an elastic baffle 107. The straw biomass shaped particles act on the elastic baffle 107 and drive the elastic baffle 107 to elastically move, so that the straw biomass shaped particles fall onto the next layer of the conveying belt 21 through the discharging space 1071. The elastic baffle 107 is opened by the weight of the straw biomass shaped particles when the straw biomass shaped particles pass through, and is closed when there is no straw biomass shaped particles to pass through, so as to prevent the gasification gas from bypassing the straw biomass shaped particle layer of the conveying belt 21 and the gas-liquid separator 30 to pass through freely, i.e. to prevent the gasification gas from short-circuiting.

[0044] Please refer to Figures 1 to 3In some optional embodiments, each gas-liquid separator 30 comprises a gas-liquid separation structure 301, which comprises a plurality of groups of gas-liquid separation assemblies 34. The gas-liquid separation assembly 34 comprises a filler zone 344 for gas-liquid separation, which is filled with filler, preferably wire mesh filler such as glass fiber mesh. The bottom of the filler zone 344 is provided with an oil collector 345 for collecting oil. One end of the filler zone 344 is provided with an air inlet section 341 for air inlet, which comprises a bottom air inlet and a side air inlet. The other end of the filler zone 344 is provided with an air outlet section 342 for air outlet, which comprises a bottom air outlet and a side air outlet. The air inlet section 341 and the air outlet section 342 are provided with a closed section 343, by which the gas-liquid entering from the air inlet section 341 is separated via the filler zone 344, and the separated gas is discharged from the air outlet section 342, and the separated liquid falls into the oil collector 345. On the other hand, the gas-liquid separator 30 further comprises a collector 32 for collecting tar, which is arranged on the outer wall of the furnace body 1001 and abuts against the outer wall of the furnace body 1001 on one side, so that the heat preservation performance can be obtained to prevent the tar from being solidified or too viscous to flow due to temperature reduction. The collector 32 comprises a manifold 31 connected to the oil collector 345, and the tar in the oil collector 345 flows into the collector 32 via the manifold 31, and the collector 32 is further provided with a valve 33 which can be opened and closed. The tar separated from the gas-liquid separation structure 301 flows into the tar collector 32 from the manifold 31 for storage, and is discharged from the valve 33 when the storage amount reaches a certain amount to produce by-products, and the by-products are convenient to recycle. Specifically, the gasification gas formed in the oxidation zone 1033, the reduction zone 1032 and the pyrolysis zone 1031 has its temperature gradually reduced layer by layer after passing through the straw biomass briquette particle layer on the conveying belt 21 of the drying zone, and the tar therein is condensed from gas to liquid layer by layer and is captured when passing through the gas-liquid separator 30, and finally the gasification gas from which the tar is removed is discharged from the exhaust hole 104 at the top of the gasification furnace. The ash of the straw biomass briquette particle after combustion and gasification falls into the ash chute 62 and is collected, and the tar formed by each layer of gas-liquid separator 30 flows into the tar collector 32 corresponding to each layer, and is discharged when the tar accumulates to a certain amount.

[0045] See Figure 1 and Figure 2In some alternative embodiments, the stirring mechanism 40 further comprises a stirring power assembly 41, a driving gear 42 and a supporting assembly 44. The stirring power assembly 41 comprises a motor and a speed reducer. The stirring power assembly 41 is installed outside the furnace body 1001 and its output end extends into the furnace body 1001 and is connected with the driving gear 42. The stirring power assembly 41 is sealed with the furnace body 1001. The supporting assembly 44 is arranged in the cavity 101 for supporting the stirring plate 43. The stirring plate 43 is rotatably connected with the supporting assembly 44 through a rotating shaft 441. The stirring plate 43 is provided with a gear ring 431 along its periphery, which is engaged with the driving gear 42. The stirring power assembly 41 is actuated to drive the driving gear 42 to engage and drive the stirring plate 43, so that the stirring plate 43 continuously performs a circular motion to stir the straw biomass briquettes falling from the guide plate 108 into the honeycomb partition chambers 51.

[0046] Referring to Figure 1 , Figure 2 and Figure 4 In some alternative embodiments, the plurality of partition chambers 51 make the partitioner 50 in a honeycomb shape. Each partition chamber 51 can be hexagonal, and two adjacent partition chambers 51 are separated by a partition plate 52. The gap 501 between the partition chamber 51 adjacent to the inner wall of the furnace body 1001 and the inner wall of the furnace body 1001 is filled with refractory mortar, so that the partitioner 50 and the furnace body 1001 are integrated into a unitary structure, which is stable and can ensure sufficient reaction of the straw biomass briquettes.

[0047] Referring to Figure 1 and Figure 2In some optional embodiments, the ash removal device 60 comprises an ash removal assembly 61, a rotating assembly 63, and an ash chute 62. The ash removal assembly 61 is mounted on the output end of the rotating assembly 63. A rolling support seat 631 is arranged between the rotating assembly 63 and the base 1002, so that the rotating assembly 63 drives the ash removal assembly 61 to rotate. The inner wall of the furnace body 1001 is provided with a scraping plate 612 near the ash removal assembly 61. The ash removal assembly 61 is continuously rotated by the rotating assembly 63 to drive the reacted ash to fall on both sides of the bottom end. Ventilation holes 611 are formed in the ash removal assembly 61. The ash removal assembly 61 is used to support the straw biomass shaped particles in the partition 51. The ash removal assembly 61 rotates to continuously push the biomass ash that has been burned out in the oxidation zone 1033 to the outer edge of the bottom end, and then falls into the water in the ash chute 62 under the action of the scraping plate 612 to leave the gasification zone. The ash residue liquid in the ash chute 62 is periodically extracted to separate potassium fertilizer, silicon dioxide, carbon particles, etc. to produce byproducts. The ash chute 62 extends out of the furnace body 1001. The ash chute 62 comprises a support wall 621, a water seal wall 622, and a turned-up water seal wall 623. Water holes 6211 are formed in the support wall 621 for water passage. The water seal wall 622 cooperates with the turned-up water seal wall 623 to isolate the air entering from the air inlet 1091. Specifically, the support wall 621 of the ash chute 62 is used to support the ash removal assembly 61. The air inlet 1091 of the air inlet pipe 109 is connected to the cavity 101. The air inlet 1091 is used to assist the heat reaction. The top of the air inlet pipe 109 is turned up to form the turned-up water seal wall 623. The turned-up water seal wall 623, the bottom edge of the furnace wall, the support wall 621, and the water seal wall 622 together form a water seal, so that the air entering from the air inlet 1091 can only enter the furnace body 1001 through the ventilation holes 611 and cannot leak out. The water level in the ash chute 62 is higher than the bottom edge of the furnace wall. The height of the bottom edge of the furnace wall is the same as the height of the lower edge of the turned-up water seal wall 623. At the same time, the water enters the space between the support wall 621 and the water seal wall 622 through the water holes 6211. Thus, a water seal is formed between the furnace wall, the support wall 621, the turned-up water seal wall 623, and the water seal wall 622. The air entering from the air inlet 1091 can only enter the inside of the furnace body 1001 through the ventilation holes 611 to support the gasification process.

[0048] Please refer to Figure 1 and Figure 2 In some optional embodiments, the cavity 101 is further provided with a monitoring device 70. The monitoring device 70 comprises a first monitoring assembly 71 and a second monitoring assembly 72. The first monitoring assembly 71 is installed in the feeding space 102 and is close to the feeding mechanism 10. The first monitoring assembly 71 is used to monitor the material falling on the first layer of the conveying belt 21. The second monitoring assembly 72 is installed in the reaction space 103 and is located between the stirring mechanism 40 and the partition 50. The second monitoring assembly 72 is used to monitor the amount of material in each partition 51 to ensure that the material in each partition 51 is filled.

[0049] As Figures 1 to 4As shown, the straw biomass shaped particle gasification furnace 100 of the utility model, working process as follows: water is drawn into ash chute 62, water from water hole 6211 into the space formed between support wall 621 and water seal wall 622, until the water reaches the water seal line 624; finally by ash chute 62 outer wall, furnace wall lower edge, support wall 621, turn -up water seal wall 623, and water seal wall 622 form water seal, so that the air from the air inlet 1091 comes in only through the ventilation hole 611 into the furnace body 1001 and not to leak out. According to the gas flow adjustment good material board height, let the straw biomass shaped particle from the feed inlet 110 into the furnace body 1001 inside. Start the motor of the conveyor belt 21, the straw biomass shaped particle that falls on the first layer conveyor belt 21 moves with the conveyor belt 21, and after meeting the material board, is stacked on the conveyor belt 21 at the same height and continues to advance, reaches the tail end of the conveyor belt 21 and falls from the discharge space 1071, pushes away the elastic baffle 107 and falls on the next layer of conveyor belt 21, and falls on the guide plate 108 after passing through the multiple layers of conveyor belt 21. The material falls on the separator 50 under the guidance of the guide plate 108, and the material board 43 starts to rotate under the action of the motor, and the straw biomass shaped particle is continuously filled in each honeycomb partition 51. Air is introduced from the air inlet 1091, and the air meets the straw biomass shaped particle after entering the air inlet 1091 and the air inlet 1091, and then ignition, and the rotating assembly 63 drives the ash removal assembly 61 to rotate. The gasification gas formed in the oxidation zone 1033, the reduction zone 1032 and the pyrolysis zone 1031 gradually decreases in temperature after passing through the straw biomass shaped particle layer on the conveyor belt 21 in the drying zone, and the tar in it gradually condenses from gas to liquid layer by layer, and is captured when passing through the gas-liquid separator 30, and finally the gasification gas with the tar removed is discharged from the gasification furnace. The ash of the straw biomass shaped particle after combustion and gasification falls into the ash chute 62 and is collected, and the tar formed by each layer of gas-liquid separator 30 flows into the corresponding tar collector 32, and is discharged when the tar accumulates to a certain amount. The straw biomass shaped particle gasification furnace 100 of the utility model changes the straw biomass shaped particle in the traditional whole accumulation state of the drying zone into a layered distribution on the conveyor belt 21, realizes accurate automatic control of the feed, and eliminates the bridging phenomenon of the straw biomass shaped particle in the drying zone. The straw biomass shaped particle in the traditional whole accumulation state of the reduction zone 1032 and the pyrolysis zone 1031 is changed into distributed accumulation in the honeycomb partition 51, which prevents the formation of bridging. In addition, the gas-liquid separator 30 arranged between the conveyor belt 21 can separate and purify the tar in the gasification gas online like the tray of a rectifying column and recycle it to produce byproducts. The structure of the straw biomass shaped particle gasification furnace 100 of the utility model overcomes the shortcomings of the traditional suction type gasification furnace, such as difficult control of the internal process, easy production of tar and bridging, and lays a foundation for the popularization and application of the furnace type in the straw biomass shaped particle gasification furnace 100.The straw biomass forming granular gasification furnace 100 can make the material fall uniformly, has good combustion effect, and is convenient for recycling by-products.

[0050] The above is only a preferred embodiment of the present application, and cannot be used to limit the scope of the present application. Therefore, equivalent changes made according to the claims of the present application are all within the scope of the present application.

Claims

1. A straw biomass briquette gasifier, characterized in that, The utility model relates to a biomass briquette production furnace, comprising: a furnace body provided with a hollow cavity, the cavity comprising a feeding space and a reaction space, a feeding mechanism arranged at the top of the furnace body for feeding of the straw biomass briquettes, comprising a material uniformizing assembly for uniformizing the material, the material uniformizing assembly being located in the cavity; a plurality of feeding mechanisms arranged in the feeding space at a first preset interval from top to bottom for conveying the straw biomass briquettes from top to bottom; the feeding mechanism comprises a conveying belt, and the straw biomass briquettes are uniformly distributed on the conveying belt in the width direction of the conveying belt by the material uniformizing assembly; a plurality of gas-liquid separators arranged in the feeding space at a first preset interval from top to bottom and each feeding mechanism being provided with a gas-liquid separator at the lower end thereof; a poking mechanism arranged in the cavity and located at one end of the feeding space close to the reaction space, comprising a poking plate arranged in rotation in the cavity; a separator arranged in the reaction space, comprising a plurality of separation compartments, each separation compartment being used for filling the straw biomass briquettes and carrying out thermal reaction; an ash removal device arranged below the separator for supporting the straw biomass briquettes in the separation compartments and receiving the ash after thermal reaction of the straw biomass briquettes; a base for supporting the ash removal device, the base being provided with an air inlet communicating with the cavity.

2. The straw biomass briquette gasification furnace according to claim 1, characterized in that, The feeding mechanism further comprises a feeding motor and a driving assembly, the feeding motor being mounted outside the furnace body, the driving assembly being mounted at the output end of the feeding motor and extending into the cavity to be connected with the material uniformizing assembly, the driving assembly being sealingly arranged between the furnace body, the feeding motor being actuated to drive the driving assembly to rotate the material uniformizing assembly on the conveying belt, so that the straw biomass briquettes are uniformly distributed on the conveying belt in the width direction of the conveying belt.

3. The straw biomass briquette gasification furnace according to claim 1, characterized in that, The feeding mechanism comprises a feeding motor and a conveying assembly, the conveying belt being arranged on the conveying assembly, the feeding motor being mounted outside the furnace body, the conveying assembly comprising a driving roller extending out of the furnace body to be connected with the feeding motor, the feeding motor being actuated to drive the conveying assembly to convey the conveying belt; the starting end of each conveying belt is provided with a first material blocking plate, the first material blocking plate being used to prevent the straw biomass briquettes from falling into the gap between the conveying belt and the furnace wall; a second material blocking plate is arranged between the end of the conveying belt and the gas-liquid separator, the second material blocking plate being used to prevent the straw biomass briquettes from entering the space between the conveying belt and the gas-liquid separator.

4. The straw biomass briquette gasification furnace according to claim 1, characterized in that, The end of each conveying belt is provided with a discharging space for discharging the straw biomass briquettes, the discharging space being provided with an elastic baffle, the straw biomass briquettes acting on the elastic baffle and driving the elastic baffle to elastically move, so that the straw biomass briquettes fall into the conveying belt of the next layer through the discharging space.

5. The straw biomass briquette gasification furnace according to claim 1, characterized in that, Each of the gas-liquid separators comprises a plurality of gas-liquid separation assemblies, each of which comprises a packing area for gas-liquid separation, the packing area being filled with packing, the bottom of the packing area being provided with an oil collector for collecting oil, one end of the packing area being provided with an air inlet area for air inlet, the other end of the packing area being provided with an air outlet area for air outlet, and a closed area being provided between the air inlet area and the air outlet area, so that gas-liquid entering from the air inlet area is separated through the packing area, the separated gas is discharged from the air outlet area, and the separated liquid falls into the oil collector.

6. The straw biomass briquette gasification furnace according to claim 5, characterized in that, The gas-liquid separator further comprises a collector for collecting tar, the collector being arranged on the outer wall of the furnace body and abutting against the outer wall of the furnace body on one side; the collector comprises a manifold connected to the oil collector, the tar in the oil collector flowing into the collector through the manifold, and the collector being further provided with an openable valve.

7. The straw biomass briquette gasification furnace according to claim 1, characterized in that, The stirring mechanism further comprises a stirring power assembly, a driving gear and a supporting assembly, the stirring power assembly being mounted outside the furnace body and having an output end extending into the furnace body and connected to the driving gear, the stirring power assembly being sealingly arranged between the furnace body, and the supporting assembly being arranged in the cavity for supporting the stirring plate, the stirring plate being rotatably connected to the supporting assembly, the stirring plate being provided with a gear ring engaged with the driving gear along the circumferential side of the stirring plate, and the stirring power assembly being actuated to drive the driving gear and the stirring plate.

8. The straw biomass briquette gasification furnace according to claim 1, characterized in that, The plurality of compartments make the partitioner in a honeycomb shape, each of the compartments being hexagonal, and the gap between the compartments adjacent to the inner wall of the furnace body and the inner wall of the furnace body being filled with refractory mortar, so that the partitioner and the furnace body are in an integrated structure.

9. The straw biomass briquette gasification furnace according to claim 1, characterized in that, The ash removal device comprises an ash removal assembly, a rotating assembly and an ash chute, the furnace body is provided with a scraping plate near the ash removal assembly inside the furnace body, the ash removal assembly is continuously rotated under the driving of the rotating assembly to make the reacted ash fall on both sides of the ash removal assembly, and the ash falls into the ash chute under the action of the scraping plate, and the ash removal assembly is provided with a ventilation hole; the ash chute extends out of the furnace body, the ash chute comprises a supporting wall, a water seal wall and a turned-up water seal wall, the supporting wall is provided with a water passage hole for water passage, and the supporting wall, the water seal wall and the turned-up water seal wall cooperate to isolate the air entering from the air inlet.

10. The straw biomass briquette gasification furnace according to claim 1, characterized in that, The cavity is further provided with a first monitoring assembly and a second monitoring assembly, the first monitoring assembly being mounted in the feeding space and close to the feeding mechanism, and the first monitoring assembly being used for monitoring the material falling on the first layer of the conveying belt; the second monitoring assembly being mounted in the reaction space and located between the stirring mechanism and the partitioner, and the second monitoring assembly being used for monitoring the amount of material in each of the compartments.

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