Biomass gasification pyrolysis gas fluidized bed generator

Abstract

The present invention discloses a biomass gasification pyrolysis gas fluidized bed generator, comprising a furnace body, a rotary blade arch-breaking grate at the lower part of the furnace body, the rotary blade arch-breaking grate comprising a plurality of groups of crushing rollers rotatably arranged on the furnace body, both ends of the axial direction of the plurality of groups of crushing rollers pass through the furnace body and both ends outside the furnace body are provided with first gears, adjacent crushing rollers are meshed and rotated in the opposite direction through the first gears; the grate mechanism also comprises baffle plates symmetrically arranged on both sides of the furnace body, the baffle plates on both sides are horizontally slidably arranged in the furnace body and are respectively connected to the outermost crushing rollers at both ends, a closed frame is provided on the outside of the furnace body, a driving motor is provided on the outside of the closed frame, the output shaft of the driving motor extends into the closed frame, a driving mechanism for driving a connecting piece at the middle position of the grate mechanism to move up and down is provided in the closed frame, the present invention can eliminate the arch when an arch structure is generated after feeding or during biomass combustion, thereby ensuring the uniformity and stability of biomass combustion and avoiding grate blockage.

Description

Technical Field

[0001] The invention relates to a biomass gasification pyrolysis fuel gas fluidized bed generator, in particular to a biomass gasification pyrolysis fuel gas fluidized bed generator. Background Art

[0002] Biomass gas is a combustible gas that is made from agricultural and forestry wastes by oxidizing, reducing, and pyrolyzing C in the gas under anaerobic thermodynamic conditions. The gasification process is divided into four processes: oxidation reaction, reduction reaction, pyrolysis, and drying of biomass raw materials. The combustible gas generated is biomass gas.

[0003] The existing incinerator is a harmless treatment equipment commonly used in the harmless treatment of medical and domestic waste and animals. Its principle is to use the combustion of fuels such as coal, fuel oil, and gas to burn and carbonize the objects to be treated at high temperature to achieve the purpose of disinfection. There are many classification methods from different angles. According to the furnace type, it can be divided into fixed grate furnace, mechanical grate furnace, fluidized bed incinerator (mainly used to treat industrial waste), rotary kiln furnace, etc. In order to enhance the effect of domestic waste incineration, thermal decomposition and gasification (melting) technology are often used in incineration; the principle of the grate incinerator is: the garbage is supplied to the heat-resistant cast iron (steel) grate, and ventilation is carried out from the bottom of the grate to burn the garbage; some garbage will produce slagging during the combustion process, which is easy to block the grate, resulting in poor ventilation and failure to replenish oxygen in time, which not only affects normal combustion, but also has low thermal utilization rate. At the same time, after the incinerator is slagging, it needs to be manually passed through the furnace, which increases labor intensity and wastes labor; in addition, when the biomass is introduced into the furnace and during the biomass combustion process, an arch structure will be formed, which affects the uniformity and stability of combustion. Summary of the invention

[0004] The purpose of the present invention is to provide a biomass gasification pyrolysis fuel gas fluidized bed generator to solve the above technical problems.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a biomass gasification pyrolysis gas fluidized bed generator, comprising a fluidized bed, a furnace body connected to the fluidized bed, a feeding device and an air outlet for biomass gas to be discharged are arranged on the upper part of the furnace body, an air inlet is arranged on the side wall of the fluidized bed, a rotary blade arch-breaking grate is arranged near the fluidized bed at the lower part of the furnace body, the rotary blade arch-breaking grate comprises a plurality of groups of crushing rollers rotatably arranged on the furnace body, both ends of the axial direction of the plurality of groups of crushing rollers pass through the furnace body and both ends outside the furnace body are provided with first gears, and adjacent crushing rollers are meshed through the first gears to form reverse rotation;

[0006] The grate mechanism also includes baffle plates symmetrically arranged on both sides of the furnace body, the baffle plates on both sides are horizontally slidably arranged in the furnace body and are respectively connected to the outermost crushing rollers at both ends, and a second gear is rotatably arranged at both ends of the baffle plate in the length direction, the second gear is meshed with the first gear, and the outer peripheral sides of the second gear and the first gear are both provided with annular spacing grooves, and annular limiting grooves are arranged on the inner walls on both sides of the annular spacing grooves, and a connecting piece is provided between the first gear and the second gear. The connecting piece includes a symmetrically arranged connecting shaft and a connecting plate connected between the two groups of connecting shafts, the axial ends of one group of connecting shafts are respectively inserted into the annular limiting grooves on both sides of the first gear to form a sliding connection, and the axial ends of the other group of connecting shafts are respectively inserted into the annular limiting grooves on both sides of the first gear to form a sliding connection, and the axial ends of the The ends are respectively inserted into the annular limit grooves on both sides of the second gear to form a sliding connection, the connecting piece will keep the first gear and the second gear in a meshing state and can form reverse rotation through mutual meshing, and the adjacent first gear and the first gear are also kept meshing at all times through the connection of the connecting piece and can form reverse rotation, a closed frame is provided on the outside of the furnace body for covering the baffle plate, the first gear and the second gear, a driving motor is provided on the outside of the closed frame, the output shaft of the driving motor extends into the closed frame, a third gear for meshing with the second gear is provided on the outer end of the output end of the driving motor, and a driving mechanism for driving the connecting piece in the middle position of the grate mechanism to move up and down is provided in the closed frame.

[0007] Preferably, a frame is provided in the closed frame for sliding up and down, and vertical rods are symmetrically provided on both sides of the frame. The top of the vertical rod is fixedly connected to the connecting piece in the middle of the rotary blade arch breaking grate, and the driving mechanism comprises a first driving rod and a second driving rod. A socket for inserting the first driving rod is provided in the vertical rod, a reciprocating spiral groove is provided on the outer wall of the first driving rod, and a guide shaft matching the reciprocating spiral groove is provided in the socket. The first driving rod is rotatably provided in the closed frame and a first bevel gear is provided at the bottom end. The second driving rod is rotatably provided in the closed frame and a second bevel gear meshing with the first bevel gear is provided at one end. A driving component for driving the second driving rod to rotate is provided on the closed frame.

[0008] Preferably, the driving assembly includes a conveying chain, the output end of the driving motor is located at one end within the closed frame and is provided with a first connecting gear, the second driving rod is provided with a second connecting gear, the two ends of the conveying chain are respectively meshed and connected with the first connecting gear and the second gear, and a first one-way bearing is connected between the second driving rod and the second connecting gear.

[0009] Preferably, the feeding device includes a feed hopper and a feed box arranged at the bottom of the feed hopper, the top opening of the feed box is arranged to receive the biomass fed down by the feed hopper, a first feeding area is arranged below the opening of the feed box, a first auger is rotatably arranged in the first feeding area, an auger motor for driving the first auger to rotate is arranged outside the feed box, a second feeding area is arranged at the lower part of the feed box, a second auger is rotatably arranged in the second feeding area, a plurality of filter residue grooves are arranged on the inner wall of the first feeding area, an arc-shaped groove connecting all the filter residue grooves is arranged in the feed box, and the bottom of the arc-shaped groove is connected to the second feeding area.

[0010] Preferably, the first auger includes a first feeding rod and a first spiral blade arranged on the first feeding rod, the second auger includes a second feeding rod and a second spiral blade arranged on the second feeding rod, a first transmission gear is rotatably arranged on the first feeding rod, a second transmission gear is fixed on the second auger, the second spiral blade and the first spiral blade are arranged in opposite rotation directions, the first transmission gear is meshed with the second transmission gear, and the first feeding rod is provided with a control component that drives the first transmission gear to rotate.

[0011] Preferably, the first transmission gear is axially extended with an extension ring, and the feed box is provided with an annular rotation groove for one end of the extension ring to be inserted into and form a rotational connection.

[0012] Preferably, a fixed disk is sleeved on the first feeding rod, and the outer wall of the fixed disk is fixed in the first feeding area. The first transmission gear is coaxially arranged with the fixed disk, and a plurality of drive grooves are evenly arranged along the circumference of the end face of the first transmission gear close to the fixed disk. The control component includes a push rod, and the push rod is axially slidably arranged on the fixed disk. Two groups of push rods are arranged along the circumference of the fixed disk, and one end of the push rod in the length direction is opposite to the drive groove. An elastic member driving the push rod to move toward the side away from the first transmission gear is provided on the fixed disk. The control component also includes an abutment component driving the push rod to move toward one side of the drive groove and abut against the drive groove. Each time the push rod abuts against the drive groove, the first transmission gear drives to rotate by an angle.

[0013] Preferably, the driving slot body comprises an inclined slot and a flat slot, and when one group of push rods is aligned with the inclined slots, the other group of push rods is aligned with the flat slots.

[0014] Preferably, the abutment assembly includes a abutment plate and an abutment rod, wherein the abutment plate is fixed on the first feeding rod and is coaxially arranged with the fixed plate, the abutment plate is located on the side of the fixed plate away from the first transmission gear, and one side of the abutment rod is provided with an inclined surface, and the abutment rod follows the rotation of the first feeding rod to abut against the inclined surface and drive the abutment rod to move toward the side of the driving groove body.

[0015] Preferably, the abutment rod is provided with multiple groups along the circumference of the abutment plate, and the abutment plate is provided with an arc-shaped opening for the abutment rod to slide a certain distance along the circumference. A first spring is fixed on the inner wall at one end of the arc-shaped opening, and one end of the first spring abuts against the abutment rod. A stirring rod is connected to the end of the abutment rod away from the fixed plate, and the stirring rod passes through a spiral blade, and a avoidance opening is provided on the spiral blade for the stirring rod to slide along the circumference.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] Each group of crushing rollers is connected by a connecting piece, and the outermost crushing roller is connected to the baffle plate by a connecting piece. A driving mechanism for driving the connecting piece in the middle of the rotary blade arch-breaking grate to move up and down is arranged in the closed frame. Before feeding the furnace body, the middle connecting piece can be lifted up to make the multiple groups of crushing rollers change their positions and form an arch-like structure. After feeding, the connecting piece in the middle of the rotary blade arch-breaking grate is driven to move down to keep the multiple groups of crushing rollers horizontal, thereby eliminating the arch-like structure on the top of the furnace body after feeding.

[0018] When the fluidized bed generator has been used for a period of time and slag is formed on the rotary blade arch breaking grate, the crushing roller can be driven to rotate to crush the slag on the rotary blade arch breaking grate and make the slag fall into the fluidized bed to avoid grate blockage;

[0019] The feeding device is provided with a first auger and a second auger, and a filter residue tank is provided between the first feeding area and the second feeding area, so that small particles of biomass can be filtered once, and when the first auger transmits a part of biomass into the furnace body, the second auger transmits a part of small particles of biomass into the furnace body, so as to avoid too many small particles of biomass falling on the rotary blade arch breaking grate first, resulting in rapid combustion to form ash and affect the stability of the redox reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 It is a cross-sectional schematic diagram highlighting the interior of the furnace body and the vulcanized bed of the present invention;

[0022] Figure 2 is a schematic diagram for explaining the arch-shaped arrangement structure of the rotary blade arch-breaking grate of the present invention;

[0023] Figure 3 yes Figure 2 A magnified schematic diagram of part A;

[0024] Figure 4It is a structural schematic diagram highlighting the bidirectional spiral groove and the guide shaft of the present invention;

[0025] Figure 5 It is a schematic diagram of the explosion of the rotary blade arch-breaking grate of the present invention;

[0026] Figure 6 yes Figure 5 A magnified schematic diagram of part B;

[0027] Figure 7 is a schematic diagram for explaining the present invention, which highlights the closed frame;

[0028] Figure 8 It is a schematic diagram of the overall structure of the present invention highlighting the first auger, the second auger and the feed box;

[0029] Fig. 9 It is a schematic diagram of the explosion of the first auger and the second auger of the present invention;

[0030] Fig.10 yes Fig. 9 A magnified schematic diagram of part C;

[0031] Fig.11 This is an exploded schematic diagram of the present invention highlighting the support rod and the fixed plate

[0032] Fig.12 yes Fig.11 The enlarged schematic diagram of the D part;

[0033] Fig.13 is a schematic diagram for explaining the present invention, which highlights the driving slot;

[0034] Fig.14 The present invention highlights the explosion of the abutment rod and the first spring.

[0035] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0036] 1. Fluidized bed; 2. Furnace body; 3. Air outlet; 4. Feeding device; 401. Feeding hopper; 402. Feeding box; 403. First auger; 4031. First feeding rod; 4032. First spiral blade; 404. Second auger; 4041. Second feeding rod; 4042. Second spiral blade; 5. Air inlet; 6. Rotary blade arch breaking grate; 61. Crushing roller; 62. First gear; 63. Crushing rotary blade; 64. Second gear; 7, plate conveyor chain; 8, slag outlet; 9, material blocking plate; 10, matching block; 11, plate groove; 12, annular partition groove; 13, annular limit groove; 14, connecting piece; 141, connecting shaft; 142, connecting plate; 15, closing frame; 16, driving motor; 17, third gear; 18, frame groove; 19, frame; 20, vertical rod; 21, driving mechanism; 211, first driving rod; 212, second driving rod ; 22. reciprocating spiral groove; 23. guide shaft; 24. first rotating hole; 25. first bevel gear; 26. bevel gear area; 27. gear area; 28. second rotating hole; 29. ​​second bevel gear; 30. conveyor chain; 31. second connecting gear; 32. first one-way bearing; 33. first feeding area; 34. second feeding area; 35. filter residue tank; 36. auger motor; 37. fixed plate; 38. drive tank; 381. tilt slot; 382, ​​flat slot; 39, push rod; 40, push rod slot; 41, bracket slot; 42, limit plate; 43, second spring; 44, push rod; 45, inclined surface; 46, first spring; 47, arc-shaped mouth; 48, anti-slip groove; 49, anti-slip block; 50, stirring rod; 51, avoidance mouth; 52, connecting groove; 53, first transmission gear; 54, second transmission gear; 55, extension ring; 56, annular rotation groove; 57, push plate. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1-14 , the present invention provides a technical solution:

[0039] Embodiment 1

[0040] See also Figure 1The biomass gasification pyrolysis gas fluidized bed generator comprises a fluidized bed 1, a furnace body 2 connected to the fluidized bed 1, a feeding device 4 and an outlet 3 for discharging biomass gas are arranged on the upper part of the furnace body 2, an air inlet 5 is arranged on the side wall of the fluidized bed 1, and a plurality of groups of air inlets 5 can be arranged, and each group of air inlets 5 is provided with a valve, which can be opened when oxygen needs to be fed into the fluidized bed 1, and an igniter is arranged on the outer wall of the furnace body 2 to ignite the furnace body 2. It is a prior art, so no further description is made.

[0041] See also Figure 1 , 2 A rotary blade arch-breaking grate 6 is provided at the lower part of the furnace body 2 near the fluidized bed 1. The rotary blade arch-breaking grate 6 includes multiple groups of crushing rollers 61 rotatably arranged on the furnace body 2. Both ends of the multiple groups of crushing rollers 61 pass through the furnace body 2 and are located outside the furnace body 2. Both ends are provided with first gears 62. Adjacent crushing rollers 61 are meshed and rotated in the opposite direction through the first gears 62. Each group of crushing rollers 61 is provided with crushing rotary blades 63. The crushing rotary blades 63 between adjacent crushing rollers 61 are staggered. When the biomass on the rotary blade arch-breaking grate 6 is burned for a period of time and slagging occurs, the crushing rollers 61 can be driven to rotate. , so that the slag body is crushed by the reverse rotation between the adjacent crushing rollers 61. In addition, a plate conveyor chain 7 is arranged in the fluidized bed 1. When the biomass on the rotary blade arch breaking grate 6 burns for a period of time and forms carbon, the crushing roller 61 can be driven to rotate, and the carbon is crushed and falls on the plate conveyor chain 7. Then, air is allowed to enter the fluidized bed to react with the biomass carbon to produce carbon monoxide, which enters the reduction layer on the rotary blade arch breaking grate 6 to produce combustible gas. After the biocarbon undergoes oxidation reaction, ash is formed, which can be transmitted to the external cooling pool for cooling through the plate conveyor chain 7 (a slag outlet 8 is arranged at the bottom of the fluidized bed 1);

[0042] See also Figure 1 , 5, 6, the grate mechanism also includes baffle plates 9 symmetrically arranged on both sides of the furnace body 2, a plate groove 11 for the baffle plates 9 to slide horizontally is provided on the inner wall of the furnace body 2, a matching block 10 staggered with the crushing vane 63 is provided on the baffle plates 9, the baffle plates 9 on both sides are horizontally slidably arranged in the furnace body 2 and are respectively connected to the outermost crushing rollers 61 at both ends, and a second gear 64 is rotatably provided at both ends of the baffle plate 9 in the length direction, the second gear 64 is meshed and connected with the first gear 62, the outer peripheral sides of the second gear 64 and the first gear 62 are both provided with annular partition grooves 12, and annular limiting grooves 13 are provided on the inner walls on both sides of the annular partition grooves 12, a connecting piece 14 is provided between the first gear 62 and the second gear 64, and the connecting piece 14 includes a symmetrically arranged connecting shaft 141 and a connecting plate 1 connected between the two sets of connecting shafts 141 42, the two axial ends of one group of connecting shafts 141 are respectively inserted into the annular limiting grooves 13 on both sides of the first gear 62 to form a sliding connection, and the two axial ends of the other group of connecting shafts 141 are respectively inserted into the annular limiting grooves 13 on both sides of the second gear 64 to form a sliding connection. The connecting member 14 will keep the first gear 62 and the second gear 64 in a meshing state and can form reverse rotation through mutual meshing. The adjacent first gears 62 and the first gears 62 are also kept in meshing at all times through the connection of the connecting member 14 and can form reverse rotation. The baffle plate 9 is connected to the crushing roller 61 through the connecting member 14, and the crushing rollers 61 are also connected to each other through the connecting member 14, so that multiple groups of crushing rollers 61 are arranged to form an arch structure so that the spacing between them will not change, thereby preventing biomass from falling downward.

[0043] See also Figure 1 , 2 In order to prevent gas leakage, a closed frame 15 for covering the baffle plate 9, the first gear 62 and the second gear 64 is provided on the outside of the furnace body 2, and a gear area 27 for moving the first gear 62 and the second gear 64 is provided in the closed frame 15, and a communication is arranged between the furnace body 2 and the gear area 27 to avoid interference with the movement of the crushing roller 61. A driving motor 16 is provided on the outside of the closed frame 15, wherein the driving motor 16 can be provided on both the front and rear sides of the closed frame 15, and can provide a greater driving force when driving the crushing roller 61 to rotate, wherein the rotation directions of the two sets of driving motors 16 are mutually opposite. To ensure that there is no jamming during rotation, the output shaft of the driving motor 16 extends into the gear area 27, and the outer end of the output end of the driving motor 16 is provided with a third gear 17 for meshing with the second gear 64. The closed frame 15 is provided with a driving mechanism 21 for driving the connecting piece 14 in the middle position of the grate mechanism to move up and down. When the multiple groups of crushing rollers 61 are in the same horizontal position, the second gear 64 on the baffle plate 9 will mesh with the third gear 17. By starting the driving motor 16, the crushing roller 61 can be driven to rotate by cooperating with the second gear 64 and the first gear 62.

[0044] See also Figure 2-47. In order to drive the connecting piece 14 at the middle position of the rotary blade arch-breaking grate 6 to move up and down, the closed frame 15 is provided with a frame-shaped groove 18 below the gear area 27, and a frame body 19 is provided in the frame-shaped groove 18 for sliding up and down. Vertical rods 20 are symmetrically provided on both sides of the frame body 19. The top of the vertical rod 20 is fixedly connected to the connecting plate 142 of the connecting piece 14 at the middle position of the rotary blade arch-breaking grate 6. The driving mechanism 21 includes a first driving rod 211 and a second driving rod 212. A socket for inserting the first driving rod 211 is provided in the vertical rod 20. A reciprocating spiral groove 22 is provided on the outer wall of the first driving rod 211. The socket is provided with a reciprocating spiral groove 22. A matching guide shaft 23, the closed frame 15 is provided with a first rotating hole 24 for rotationally connecting the first driving rod 211 at the bottom of the frame groove 18, the first driving rod 211 is provided with a first bevel gear 25 at the lower end of the first rotating hole 24, the closed frame 15 is provided with a bevel gear area 26 for rotation of the first bevel gear 25 below the first rotating hole 24, the closed frame 15 is provided with a second rotating hole 28 for rotation of the second driving rod 212 on the side wall of the bevel gear area 26, the second driving rod 212 is provided with a second bevel gear 29 meshing with the first bevel gear 25 at one end, and the closed frame 15 is provided with a driving component for driving the second driving rod 212 to rotate.

[0045] See also Figure 2 , 3 The driving assembly includes a conveying chain 30, and a first connecting gear (not shown in the figure) is provided at one end of the output end of the driving motor 16 located in the closed frame 15, and a second connecting gear 31 is provided on the second driving rod 212. The two ends of the conveying chain 30 are respectively meshed and connected with the first connecting gear and the second gear 64, and a first one-way bearing 32 is connected between the second driving rod 212 and the second connecting gear 31. In addition, a second one-way bearing is also arranged between the output end of the driving motor 16 and the third gear 17. The first one-way bearing 32 and the second one-way bearing are arranged in the same direction. When the driving motor 16 rotates forward, only the third gear 17 is driven to rotate. When the driving motor 16 rotates reversely, only the second driving rod 212 is driven to rotate through the conveying chain 30.

[0046] Embodiment 2

[0047] The difference between this embodiment and the first embodiment is that the feeding device 4 is improved.

[0048] See also Figure 1 , 89. Specifically, the feeding device 4 includes a feeding hopper 401 and a feeding box 402 arranged at the bottom of the feeding hopper 401. The biomass is put into the hopper in front of the furnace by a small forklift or manually, transported to the feeding hopper 401 by a hoist, and transported to the feeding box 402 by the feeding hopper 401. The top opening of the feeding box 402 is used to receive the biomass sent down by the feeding hopper 401. The first feeding area 33 is arranged below the opening of the feeding box 402. The first auger 403 is rotatably arranged in the first feeding area 33. The outside of the feeding box 402 is provided with an auger motor 36 for driving the first auger 403 to rotate. A second feeding area 34 is provided at the lower part of 402, and a second auger 404 is rotatably provided in the second feeding area 34. A plurality of filter residue grooves 35 are provided on the inner wall of the first feeding area 33. An arc groove connecting all the filter residue grooves 35 is provided in the feed box 402, and the bottom of the arc groove is connected to the second feeding area 34. In this way, small particles of biomass can be filtered once, so that biomass that is easy to form ash after burning in a short time falls into the second feeding area 34, and when the first auger 403 transfers a part of biomass to the furnace body 2, the second auger 404 transfers a part of small particles of biomass to the furnace body 2 (see Figure 1 ) so that small biomass particles and large biomass particles are evenly mixed and transported to the furnace body 2, so as to avoid too many small biomass particles falling on the rotary blade arch-breaking grate 6 first, resulting in rapid combustion to form ash and affect the stability of the redox reaction.

[0049] See also Figure 8 , 9 Specifically, the first auger 403 includes a first feeding rod 4031 and a first spiral blade 4032 arranged on the first feeding rod 4031, the second auger 404 includes a second feeding rod 4041 and a second spiral blade 4042 arranged on the second feeding rod 4041, and the first feeding rod 4031 is rotatably provided with a first transmission gear 53, and the first transmission gear 53 rotates as follows: the first transmission gear 53 is axially extended with an extension ring 55, and the feed box 402 is provided with an annular groove 56 for inserting one end of the extension ring 55 to form a rotation connection. A second transmission gear 54 is fixed to the second auger 404, and the second spiral blade 4042 is arranged in the opposite direction to the first spiral blade 4032, so that when the first auger 403 and the second auger 404 rotate in opposite directions, the biomass can be pushed into the furnace body 2 at the same time, and the first transmission gear is meshed and connected with the second transmission gear. A control component for driving the first transmission gear to rotate is provided on the first feeding rod 4031, and the first auger 403 is driven to rotate by the auger motor 36, and the second transmission gear 54 is driven to rotate by the first transmission gear 53, so that the second auger 404 rotates accordingly, wherein a connecting groove 52 is provided at one end of the feed box 402 for connecting the first transmission gear 53 with the second transmission gear 54.

[0050] See also Figure 9-11The first feeding rod 4031 is sleeved with a fixed disk 37, the outer wall of the fixed disk 37 is fixed in the first feeding area 33, the first transmission gear 53 is coaxially arranged with the fixed disk 37, and the end surface of the first transmission gear 53 close to the fixed disk 37 is evenly provided with multiple groups of driving grooves 38 along the circumferential side, and the control component includes a push rod 39, and the push rod 39 is axially slidably arranged on the fixed disk 37. Two groups of push rods 39 are arranged along the circumferential side of the fixed disk 37, and one end of the push rod 39 in the length direction is directly opposite to the driving groove 38. The fixed disk 37 is provided with a driving push rod 39 to move away from the first transmission The elastic member moves on one side of the driving gear 53, wherein the push rod 39 slides in the following manner: a push rod groove 40 is provided on the fixed plate 37, a bracket groove 41 is provided in the push rod groove 40, the push rod 39 is slidably arranged in the push rod groove 40, a limit plate 42 is provided on the push rod 39 to form a movable connection with the bracket groove 41, the elastic member includes a second spring 43 arranged in the bracket groove 41, the second spring 43 continuously abuts against the end face of the limit plate 42 on one side close to the driving groove body 38, and the control component also includes a driving push rod 39 to move toward one side of the driving groove body 38 and to be in contact with the driving groove body 38 (see Fig.13 ) in an abutment assembly, wherein the abutment assembly includes a butt plate 57 and a butt rod 44, the butt plate 57 is fixed on the first feeding rod 4031 and is coaxially arranged with the fixed plate 37, the butt plate 57 is located on the side of the fixed plate 37 away from the first transmission gear 53, and a slope 45 is provided on one side of the butt rod 39, and the butt rod 44 follows the rotation of the first feeding rod 4031 and butts against the slope 45 and drives the butt rod 39 to move toward the side of the driving groove body 38. The butt rod 39 butts against the driving groove body 38 once to drive the first transmission gear 53 to rotate by one angle.

[0051] See also Fig. 9 , 12 -14, the specific method of the push rod 39 abutting against the driving groove body 38 once to drive the first transmission gear 53 to rotate by one angle is as follows: the driving groove body 38 includes an inclined groove 381 and a flat groove 382, ​​when one group of push rods 39 is aligned with the inclined groove 381, the other group of push rods 39 is aligned with the flat groove 382, ​​after the abutment rod 44 drives the first group of push rods 39 to abut against the inclined groove 381 to make the first transmission gear 53 rotate by one angle, the first group of push rods 39 is opposite to the flat groove 382, ​​the second group of push rods 39 is opposite to the inclined groove 381, and the abutment rod 44 Then, it abuts against the second group of abutting rods 39 and drives the second group of abutting rods 39 to move and abut against the inclined groove 381 to rotate the first transmission gear 53 by an angle. After the first transmission gear 53 rotates, the second group of abutting rods 39 are opposite to the flat groove 382, ​​and the first group of abutting rods 39 are opposite to the inclined groove 381 again, thereby completing the cyclic switching. The rotation of the first transmission gear 53 will drive the second transmission gear 54 to rotate, so that the first auger 403 continues to transport biomass while the second auger 404 intermittently transports small particles of biomass into the furnace body 2.

[0052] See also Fig. 9 ,10 , 12-14, specifically, a plurality of groups of abutment rods 44 are provided along the circumference of the abutment plate 57, wherein the distance between two adjacent groups of abutment rods 44 is greater than the distance between two groups of abutment rods 39, so that after one group of abutment rods 44 has completed abutting with two groups of abutment rods 44, the next group of abutment rods 44 begins to abut with the abutment rods 39, and the abutment plate 57 is provided with an arc-shaped opening 47 for the abutment rods 44 to slide a certain distance along the circumference, and an anti-slip groove 48 is provided on the inner wall of the arc-shaped opening 47, and an anti-slip block 49 is provided on the abutment rod 44 to form a sliding connection with the anti-slip groove 48, and a first spring 46 is fixed on the inner wall at one end of the arc-shaped opening 47, and one end of the first spring 46 abuts against the abutment rod 44, and the abutment rod 44 is away from the fixed plate. One end of 37 is connected to a stirring rod 50, which passes through the spiral blade. The first spiral blade 4032 is provided with an avoidance opening 51 for the stirring rod 50 to slide along the circumferential side. The abutment rod 44 abuts against the inclined surface 45 of the abutment rod 39, which will cause the abutment rod 44 to slide to the other end in the arc opening 47. After the abutment rod 44 cannot move, the abutment rod 39 will be driven to move by cooperating with the inclined surface 45. After the abutment rod 44 is separated from the abutment rod 39, the abutment rod 44 will resume movement under the action of the first spring 46 and drive the stirring rod 50 to swing, thereby stirring the biomass in the first feeding area 33, which helps the small particles of biomass in the first feeding area 33 to fall into the second feeding area 34.

[0053] See also Figure 1-14 As shown, when the device is in use, the driving motor 16 is reversed, and the second bevel gear 29 is driven to rotate through the second driving rod 212, and then the first driving rod 211 is driven to rotate through the cooperation with the first bevel gear 25. The rotation of the first driving rod 211 drives the frame 19 to move upward through the cooperation of the reciprocating spiral groove 22 and the guide shaft 23, thereby driving the vertical rod 20 to move upward. The vertical rod 20 pushes the connecting piece 14 in the middle of the rotary blade arch breaking grate 6 upward horizontally. At this time, the material blocking plates 9 on both sides will move toward the middle until multiple groups of crushing rollers 61 are arranged in sequence to form an arch structure.

[0054] Then, the auger motor 36 is started, and the auger motor 36 drives the first auger 403 to rotate. During the rotation of the first auger 403, the abutting rod 44 on the abutting plate 57 will abut against the abutting rod 39 and slide back and forth in the arc-shaped mouth 47 under the action of the first spring 46, driving the stirring rod 50 to continuously stir the biomass in the first feeding area 33, so that small particles in the biomass pass through the filter residue groove 35 and fall into the second feeding area 34. In addition, the abutting rod 44 on the abutting plate 57 abuts against the abutting rod 39, which will push the abutting rod 39 to move toward the side of the driving groove body 38 and intermittently abut against the inclined groove 381, thereby intermittently driving the first transmission gear 53 to rotate. The intermittent rotation of the first transmission gear 53 will drive the second transmission gear 54 to rotate intermittently. When the biomass is continuously transported into the furnace body 2, the second auger 404 will intermittently transport small-particle biomass particles into the furnace body 2, among which the small particles will fall on the front part of the second feeding area 34 in a concentrated manner. It will take a period of time for the small particles to be delivered to the furnace body 2. At this time, the large-particle biomass has already fallen on the rotary blade arch-breaking grate 6, so as to avoid the small-particle biomass falling on the rotary blade arch-breaking grate 6 first and quickly turning into ash during combustion and affecting the subsequent oxidation reaction. In addition, the second auger 404 will move intermittently, so that when the small particles of biomass in the first feeding area 33 fall into the furnace body 2, some of the small-particle biomass will be concentrated and fall on the large biomass in equal proportion, so as to avoid the small particles and large-particle biomass being evenly mixed and affecting the reaction stability during the biomass gas production process.

[0055] After the biomass is fed into the furnace body 2 and onto the rotary blade arch breaking grate 6, the biomass in the furnace body 2 will present an arch-shaped structure. At this time, the motor 16 is driven to reverse, and the connecting piece 14 will be driven downward under the cooperation of the reciprocating spiral groove 22 and the guide shaft 23 until all the crushing rollers 61 are at the same level, thereby offsetting the arch phenomenon on the top of the biomass.

[0056] Then, air can be pumped into the furnace body 2 and ignited by the igniter to burn the biomass. After burning for a period of time, when part of the biomass forms carbon on the rotary blade arch breaking grate 6, the motor 16 can be driven to rotate forward. The forward rotation of the driving motor 16 will drive the third gear 17 to rotate. The rotation of the third gear 17 will drive the second gear 64 to rotate, thereby driving the first gear 62 to rotate, so that the adjacent crushing rollers 61 form a reverse rotation, and the carbon is crushed by the crushing rotary blade 63, so that the carbon falls on the plate conveyor chain 7 and slagging and blockage on the rotary blade arch breaking grate 6 can be avoided. Air continues to enter the fluidized bed to react with the biomass carbon to produce carbon monoxide, which enters the reduction layer to produce combustible gas, so that the rotary blade arch breaking grate 6 is placed on the reduction reaction and cracking reaction respectively.

[0057] The biomass carbon on the plate conveyor chain 7 will react for a period of time to form ash, and the plate conveyor chain 7 can be started to discharge the ash through the slag discharge port.

[0058] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0059] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0060] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A biomass gasification pyrolysis gas fluidized bed generator, comprising a fluidized bed (1), a furnace body (2) connected to the fluidized bed (1), a feeding device (4) and a gas outlet (3) for discharging biomass gas are arranged on the upper part of the furnace body (2), and an air inlet (5) is arranged on the side wall of the fluidized bed (1), characterized in that: A rotary blade arch-breaking grate (6) is provided at the lower part of the furnace body (2) near the fluidized bed (1), the rotary blade arch-breaking grate (6) comprising a plurality of groups of crushing rollers (61) rotatably arranged on the furnace body (2), both ends of the plurality of groups of crushing rollers (61) passing through the furnace body (2) at the axial ends and both ends located outside the furnace body (2) are provided with first gears (62), and adjacent crushing rollers (61) are meshed through the first gears (62) and rotate in opposite directions; The grate mechanism further comprises baffle plates (9) symmetrically arranged on both sides of the furnace body (2), the baffle plates (9) on both sides being horizontally slidably arranged in the furnace body (2) and respectively connected to the outermost crushing rollers (61) at both ends, second gears (64) being rotatably arranged at both ends of the baffle plates (9) in the length direction, the second gear (64) being meshingly connected to the first gear (62), the outer peripheral sides of the second gear (64) and the first gear (62) being both provided with annular grooves (12), the inner walls on both sides of the annular grooves (12) being provided with annular limiting grooves (13), a connecting member (14) being arranged between the first gear (62) and the second gear (64), the connecting member (14) comprising symmetrically arranged connecting shafts (141) and connecting plates (142) connected between the two groups of connecting shafts (141), the axial ends of one group of connecting shafts (141) being respectively inserted into the annular limiting grooves (13) on both sides of the first gear (62) to form a sliding connection, and the other group of connecting shafts (141) being respectively inserted into the annular limiting grooves (13) on both sides of the first gear (62) to form a sliding connection, ) are respectively inserted into the annular limiting grooves (13) on both sides of the second gear (64) to form a sliding connection, the connecting member (14) will keep the first gear (62) and the second gear (64) in a meshing state and can form reverse rotation through mutual meshing, and the adjacent first gears (62) and the first gears (62) are also kept in meshing state at all times through the connection of the connecting member (14) and can form reverse rotation, the outer side of the furnace body (2) is provided with a closed frame (15) for covering the baffle plate (9), the first gear (62) and the second gear (64), the outer side of the closed frame (15) is provided with a driving motor (16), the output shaft of the driving motor (16) extends into the closed frame (15), the outer end of the output end of the driving motor (16) is provided with a third gear (17) for meshing with the second gear (64), and the closed frame (15) is provided with a driving mechanism (21) for driving the connecting member (14) at the middle position of the grate mechanism to move up and down; The feeding device (4) comprises a feeding hopper (401) and a feeding box (402) arranged at the bottom of the feeding hopper (401); the top opening of the feeding box (402) is arranged to receive the biomass fed down by the feeding hopper (401); a first feeding area (33) is arranged below the opening of the feeding box (402); a first auger (403) is rotatably arranged in the first feeding area (33); an auger motor (36) for driving the first auger (403) to rotate is arranged outside the feeding box (402); a second feeding area (34) is arranged at the bottom of the feeding box (402); a second auger (404) is rotatably arranged in the second feeding area (34); a plurality of filter residue grooves (35) are arranged on the inner wall of the first feeding area (33); an arc-shaped groove connecting all the filter residue grooves (35) is arranged in the feeding box (402); and the bottom of the arc-shaped groove is connected to the second feeding area (34); The first auger (403) comprises a first feeding rod (4031) and a first spiral blade (4032) arranged on the first feeding rod (4031); the second auger (404) comprises a second feeding rod (4041) and a second spiral blade (4042) arranged on the second feeding rod (4041); a first transmission gear (53) is rotatably arranged on the first feeding rod (4031); a second transmission gear (54) is fixed on the second auger (404); the second spiral blade (4042) and the first spiral blade (4032) are arranged in opposite directions of rotation; the first transmission gear (53) and the second transmission gear (54) are meshedly connected; and a control component for driving the first transmission gear (53) to rotate is provided on the first feeding rod (4031); An extension ring (55) is axially extended from the first transmission gear (53), and an annular rotation groove (56) is provided in the feed box (402) for inserting one end of the extension ring (55) to form a rotational connection; The first feeding rod (4031) is sleeved with a fixed disk (37), the outer wall of the fixed disk (37) is fixed in the first feeding area (33), the first transmission gear (53) is coaxially arranged with the fixed disk (37), a plurality of groups of driving grooves (38) are evenly arranged along the circumference of an end surface of one side of the first transmission gear (53) close to the fixed disk (37), and the control component includes a stop rod (39), the stop rod (39) is axially slidably arranged on the fixed disk (37), and the stop rod (39) is arranged on the fixed disk (37). Two groups of rods (39) are arranged along the circumference of the fixed plate (37), one end of the push rod (39) in the length direction is directly opposite to the driving groove body (38), the fixed plate (37) is provided with an elastic member driving the push rod (39) to move toward a side away from the first transmission gear (53), the fixed plate (37) is provided with a push rod groove (40), a bracket groove (41) is arranged in the push rod groove (40), the push rod (39) is slidably arranged in the push rod groove (40), and the push rod (39) is provided with a bracket groove (41) to form a movable shape with the bracket groove (41). The control assembly further comprises a stop plate (42) connected to the drive groove (38), the elastic member comprising a second spring (43) arranged in the bracket groove (41), the second spring (43) continuously abutting against an end surface of the stop plate (42) close to the drive groove (38), the control assembly further comprising an abutment assembly for driving the abutment rod (39) to move toward one side of the drive groove (38) and abut against the drive groove (38), the abutment assembly comprising a stop plate (57) and an abutment rod (44), the stop plate (57) being fixed to the first feeding rod (403) 1) and is coaxially arranged with the fixed plate (37), the abutting plate (57) is located on a side of the fixed plate (37) away from the first transmission gear (53), a slope (45) is provided on one side of the abutting rod (39), the abutting rod (44) follows the first feeding rod (4031) to rotate and then abuts against the slope (45) and drives the abutting rod (39) to move toward one side of the driving groove body (38), and the abutting rod (39) abuts against the driving groove body (38) once to drive the first transmission gear (53) to rotate by one angle.

2. The biomass gasification pyrolysis gas fluidized bed generator according to claim 1, characterized in that: A frame body (19) is slidably arranged in the closed frame (15) up and down, and vertical rods (20) are symmetrically arranged on both sides of the frame body (19). The top ends of the vertical rods (20) are fixedly connected to the connecting piece (14) at the middle position of the rotary blade arch-breaking grate (6). The driving mechanism (21) comprises a first driving rod (211) and a second driving rod (212). A plug hole for inserting the first driving rod (211) is arranged in the vertical rod (20). A reciprocating spiral groove (22) is arranged on the outer wall of the first driving rod (211). A guide shaft (23) matching the reciprocating spiral groove (22) is arranged in the plug hole. The first driving rod (211) is rotatably arranged in the closed frame (15) and a first bevel gear (25) is arranged at the bottom end. The second driving rod (212) is rotatably arranged in the closed frame (15) and a second bevel gear (29) meshing with the first bevel gear (25) is arranged at one end. A driving component for driving the second driving rod (212) to rotate is arranged on the closed frame (15).

3. The biomass gasification pyrolysis gas fluidized bed generator according to claim 2, characterized in that: The driving assembly comprises a conveying chain (30), an end of the output end of the driving motor (16) located in the closed frame (15) is provided with a first connecting gear, a second driving rod (212) is provided with a second connecting gear (31), two ends of the conveying chain (30) are respectively meshed and connected with the first connecting gear and the second gear (64), and a first one-way bearing (32) is connected between the second driving rod (212) and the second connecting gear (31).

4. The biomass gasification pyrolysis gas fluidized bed generator according to claim 1, characterized in that: The driving groove body (38) comprises an inclined groove (381) and a flat groove (382), and when one set of abutting rods (39) is aligned with the inclined groove (381), the other set of abutting rods (39) is aligned with the flat groove (382).

5. The biomass gasification pyrolysis gas fluidized bed generator according to claim 4, characterized in that: The abutment assembly comprises an abutment plate (57) and an abutment rod (44); the abutment plate (57) is fixed on the first feeding rod (4031) and is coaxially arranged with the fixed plate (37); the abutment plate (57) is located on a side of the fixed plate (37) away from the first transmission gear (53); a slope (45) is provided on one side of the abutment rod (39); and the abutment rod (44) rotates with the first feeding rod (4031) to abut against the slope (45) and drive the abutment rod (39) to move toward the side of the driving groove body (38).

6. The biomass gasification pyrolysis gas fluidized bed generator according to claim 5, characterized in that: A plurality of abutment rods (44) are provided along the circumference of the abutment disk (57); the abutment disk (57) is provided with an arc-shaped opening (47) for the abutment rod (44) to slide along the circumference for a certain distance; a first spring (46) is fixed to an inner wall at one end of the arc-shaped opening (47); one end of the first spring (46) abuts against the abutment rod (44); an end of the abutment rod (44) away from the fixed disk (37) is connected to a stirring rod (50); the stirring rod (50) passes through a spiral blade; and a avoidance opening (51) is provided on the spiral blade for the stirring rod (50) to slide along the circumference.

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