阅读说明：本技术 一种生物质发电厂炉前料仓给料装置 (Stokehole bin feeding device of biomass power plant ) 是由 邵海江 包卫兵 应广翔 杨发展 于 2020-12-30 设计创作，主要内容包括：本发明属于锅炉给料装置技术领域,具体的说是一种生物质发电厂炉前料仓给料装置,包括炉前料仓、隔板和保护壳体；所述炉前料仓上端内部固连有隔板,所述隔板左侧上表面设有推板；所述隔板上表面中部开设有前后布置的凹槽；所述隔板内开设有均匀布置的通孔；所述隔板下方设有保护壳体；所述保护壳体内设有均匀布置的第一伸缩杆；所述第一伸缩杆上端均固连有转轴,所述转轴上端外表面均固连有均匀布置的搅拌杆；所述凹槽内的通孔于下表面周圈处均固连有均匀布置的刀片,所述刀片紧贴转轴表面设计；本发明可对长度较长的秸秆类物料进行破碎,减少螺旋送料装置的设置,缩短燃料输送距离,使燃料推料加料时更加均匀,燃烧效果更好。(The invention belongs to the technical field of boiler feeding devices, and particularly relates to a feeding device of a stokehole bin of a biomass power plant, which comprises a stokehole bin, a partition plate and a protective shell, wherein the stokehole bin is provided with a feeding hole; a partition plate is fixedly connected to the inner part of the upper end of the stokehole bin, and a push plate is arranged on the upper surface of the left side of the partition plate; the middle part of the upper surface of the clapboard is provided with a groove which is arranged in the front and back; through holes which are uniformly distributed are formed in the partition plate; a protective shell is arranged below the partition plate; first telescopic rods are uniformly arranged in the protective shell; the upper ends of the first telescopic rods are fixedly connected with rotating shafts, and the outer surfaces of the upper ends of the rotating shafts are fixedly connected with uniformly arranged stirring rods; the through holes in the grooves are fixedly connected with blades which are uniformly arranged at the periphery of the lower surface, and the blades are designed to be tightly attached to the surface of the rotating shaft; the straw crushing device can crush straw materials with longer length, reduces the arrangement of a spiral feeding device, shortens the fuel conveying distance, and enables the fuel to be more uniform in pushing and feeding and better in combustion effect.)

1. The utility model provides a biomass power plant stokehold feed bin feeder which characterized in that: comprises a stokehole bin (1), a clapboard (2) and a protective shell (3); the whole furnace front storage bin (1) is designed to be cylindrical, and the lower end of the furnace front storage bin (1) is designed to be conical; the upper surface of the left side of the stokehole bin (1) is provided with a feeding barrel (11), the lower end of the stokehole bin (1) is provided with a discharging barrel (12), and the discharging barrel (12) is communicated with a boiler through a conveyor; the furnace front storage bin (1) is characterized in that a partition plate (2) is fixedly connected to the inner portion of the upper end of the furnace front storage bin (1), a push plate (21) is arranged on the upper surface of the left side of the partition plate (2), the push plate (21) moves left and right on the upper surface of the partition plate (2) through a pushing device arranged on the left side of the furnace front storage bin (1), and the push plate (21) is located on the left side of a feeding barrel (11) in an; the middle part of the upper surface of the clapboard (2) is provided with a groove (22) which is arranged in front and back, and the cross section of the groove (22) is designed in an arc shape; through holes (23) are uniformly distributed in the partition plate (2), and one row of through holes (23) are positioned in the groove (22); a protective shell (3) is arranged below the partition plate (2), the protective shell (3) is fixedly connected with the inner wall of the stokehole storage bin (1), and the upper end of the protective shell (3) is in a conical design; first telescopic rods (31) are uniformly arranged in the protection shell (3), the first telescopic rods (31) are arranged in one-to-one correspondence with the through holes (23) in the groove (22), and the upper ends of the first telescopic rods (31) extend out of the protection shell (3); the upper ends of the first telescopic rods (31) are fixedly connected with rotating shafts (32), the rotating shafts (32) extend out of the through holes (23), the outer surfaces of the upper ends of the rotating shafts (32) are fixedly connected with uniformly arranged stirring rods (33), the stirring rods (33) are hook-shaped structures, and the outer surfaces of the upper ends of the rotating shafts (32) are provided with pressure sensors; the through holes (23) in the grooves (22) are fixedly connected with blades (34) which are uniformly arranged on the periphery of the lower surface, one side of each blade (34) relative to the rotating shaft (32) is a cutting edge, the blades (34) are designed to be tightly attached to the surface of the rotating shaft (32), and the blades (34) and the stirring rods (33) are alternately arranged; the outer surface of the lower end of the first telescopic rod (31) is fixedly connected with a gear (35), two adjacent gears (35) are meshed with each other, and the lower surface of the first telescopic rod (31) located at the rearmost part of the protective shell (3) is fixedly connected with the output end of the motor (36).

2. The stokehole bunker feeding device of the biomass power plant as claimed in claim 1, characterized in that: the pushing device comprises a second telescopic rod (24), a sleeve (25) and a hinged rod (26); the second telescopic rod (24) is fixedly connected with the inner wall of the stokehole bin (1), a sleeve (25) is fixedly connected to the outer surface of a main rod of the second telescopic rod (24), the sleeve (25) is designed in a cubic structure, and branch rods of the second telescopic rod (24) are located inside the sleeve (25); the right end of the branch rod of the second telescopic rod (24) is hinged with the front end and the rear end of the push plate (21) through a pair of hinged rods (26); the push plate (21) comprises a plurality of telescopic sliding plates (27), the sliding plates (27) are both hollow structures, and the sliding plates (27) at the two ends are fixedly connected with springs (28).

3. The stokehole bunker feeding device of the biomass power plant as claimed in claim 2, characterized in that: the front side wall and the rear side wall of the sleeve (25) are rotationally connected with balls (29) which are uniformly arranged.

4. The stokehole bunker feeding device of the biomass power plant as claimed in claim 1, characterized in that: a connecting shaft (4) is arranged in the center of the lower surface of the protective shell (3), and the upper end of the connecting shaft (4) penetrates through the protective shell (3) and is fixedly connected with a corresponding first telescopic rod (31); the lower end of the connecting shaft (4) is fixedly connected with a rotating roller (41), and blades (42) which are uniformly arranged are fixedly connected to the outer surface of the rotating roller (41).

5. The stokehole bunker feeding device of the biomass power plant as claimed in claim 4, wherein: the surface of the blade (42) is provided with uniformly arranged spray holes (43), the spray holes (43) are all arranged obliquely downwards, and one-way valves are arranged in the spray holes (43); the rotary roller (41) is internally provided with an air passage (44), one end of the air passage (44) penetrates through the inner wall of the bottom of the connecting shaft (4) and the protective shell (3) and is connected with an air pump arranged behind the stokehole storage bin (1), and the spray holes (43) are communicated with the air passage (44).

6. The stokehole bunker feeding device of the biomass power plant as claimed in claim 1, characterized in that: go out feed cylinder (12) internal fixation and have valve plate (121), rectangular through groove (122) have been seted up in valve plate (121), rectangular through groove (122) internal rotation is connected with a pair of regulating plate (123), it has third telescopic link (124) to articulate between regulating plate (123) lower surface and feed cylinder (12) inner wall.

Technical Field

The invention belongs to the technical field of boiler feeding devices, and particularly relates to a feeding device for a stokehole bunker of a biomass power plant.

Background

With the continuous development of social economy, the demand on energy is larger and larger, the reserves of non-renewable energy resources mainly comprising coal, petroleum and natural gas are smaller and smaller, and the environmental crisis caused by the unregulated utilization of the renewable energy resources by people is also more and more serious. Meanwhile, people pay more attention to environmental protection, and renewable new energy is more and more paid more and more attention to the development and is continuously applied to the production and living fields of people. The energy using biomass energy sources such as agricultural and forestry waste, straws, barks and the like as carriers is used as a renewable energy source, is inexhaustible, and has abundant reserves and low pollution degree. The biomass power plant is a factory for generating power by using biomass, is an important carrier for developing biomass energy, and has attracted extensive attention to power generation and application of biomass energy power generation technology.

Most of feeding systems adopted by the existing biomass energy power plants are spiral feeding, namely, a spiral conveyor is arranged in a stokehole bin, and fuel is conveyed to a hearth by the spiral conveyor to be combusted. However, when the conventional spiral feeding device is used for straw materials, the soft straw materials are light and soft in texture and not strong in flowability, the material entanglement phenomenon is serious, the ideal length is difficult to ensure in the cutting process, and the bridging and arching phenomena are very common in each feeding link, so that the output of biomass utilization process equipment is unstable, and the safe and stable operation of the equipment is influenced; meanwhile, the straw biomass fuel is long in length, so that insufficient combustion of the straw in the boiler is easily caused, the feeding speed is unstable, and accidents are caused.

Some technical schemes of feeding devices of stokehole bins of biomass power plants also appear in the prior art, for example, a chinese patent with application number CN2011102958740 discloses a stokehole feeding device of a feeding system of a biomass power plant, which comprises a stokehole bin, a bearing homogenizing screw, a spiral feeding device and a fireproof door, and by arranging a large-journal variable-pitch spiral device, a longer biomass fuel is prevented from being wound on a spiral shaft.

Disclosure of Invention

In order to make up for the defects of the prior art, solve the problems that the ideal length is difficult to ensure in the cutting process of straw materials, the phenomena of bridging and arching in each feeding link are very common, the safe and stable operation of equipment is influenced, meanwhile, the straw biomass fuel is long in length, the straw is easy to burn insufficiently in a boiler, the feeding speed is unstable, accidents are caused, and the problems that the structural design of a feeding pipeline of a multi-stage spiral feeding device is complicated and the maintenance and installation are troublesome in the long-distance conveying process are solved.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a feeding device of a stokehole bin of a biomass power plant, which comprises a stokehole bin, a partition plate and a protective shell, wherein the stokehole bin is arranged on the front of the stokehole bin; the whole furnace front storage bin is designed into a cylindrical structure, and the lower end of the furnace front storage bin is designed into a conical shape; the upper surface of the left side of the stokehole bin is provided with a feeding barrel, the lower end of the stokehole bin is provided with a discharging barrel, and the discharging barrel is communicated with a boiler through a conveyor; a partition plate is fixedly connected to the inner part of the upper end of the stokehole bin, a push plate is arranged on the upper surface of the left side of the partition plate, the push plate moves left and right on the upper surface of the partition plate through a pushing device arranged on the left side of the stokehole bin, and the push plate is positioned on the left side of the feeding cylinder in an initial state; the middle part of the upper surface of the clapboard is provided with a groove which is arranged in the front and at the back, and the cross section of the groove is designed in an arc shape; through holes are uniformly distributed in the partition plate, and one row of through holes are positioned in the groove; a protective shell is arranged below the partition plate, the protective shell is fixedly connected with the inner wall of the stokehole bin, and the upper end of the protective shell is in a conical design; first telescopic rods are uniformly arranged in the protective shell, the first telescopic rods are arranged in one-to-one correspondence with the through holes in the grooves, and the upper ends of the first telescopic rods extend out of the protective shell; the upper ends of the first telescopic rods are fixedly connected with rotating shafts, the rotating shafts extend out of through holes, the outer surfaces of the upper ends of the rotating shafts are fixedly connected with uniformly arranged stirring rods, the stirring rods are of hook-shaped structures, and pressure sensors are arranged on the outer surfaces of the upper ends of the rotating shafts; the through holes in the grooves are fixedly connected with blades which are uniformly arranged at the periphery of the lower surface, one side of each blade relative to the rotating shaft is a cutting edge, the blades are designed to be tightly attached to the surface of the rotating shaft, and the blades and the stirring rods are alternately arranged; the outer surface of the lower end of the first telescopic rod is fixedly connected with gears, the two adjacent gears are meshed with each other, and the lower surface of the first telescopic rod, which is positioned at the rearmost part of the protective shell, is fixedly connected with the output end of the motor.

When the biomass fuel conveying device works, the biomass fuel is conveyed into the feeding cylinder, enters the stokehole bin through the feeding cylinder, falls on the upper surface of the partition plate, and is controlled to move rightwards by the pushing device, the biomass fuel on the surface of the partition plate is driven to move when the push plate moves, wherein the biomass fuel is small in size, short in length falls below the partition plate through the through hole, and the biomass fuel longer in length is accumulated on the surface of the partition plate and is pushed into the groove by the push plate; meanwhile, the motor is started, the motor drives the first telescopic rod positioned at the rearmost part of the protective shell to rotate, further drives other first telescopic rods to rotate through gear engagement, the rotating shaft and the stirring rod are driven to rotate when the first telescopic rods rotate, because the stirring rod is of a hook-shaped structure, when the stirring rod rotates, the biomass fuel in the groove can be stirred, the straw fuel with longer length is wound on the surface of the rotating shaft, the pressure applied to the pressure sensor is increased along with the continuous increase of the straw wound on the surface of the rotating shaft, the motor is controlled to stop rotating at the moment, so that the positions of the blade and the stirring rod are staggered after the motor stops rotating, and the first telescopic rod drives the rotating shaft to move downwards by controlling the telescopic motion of the first telescopic rod, when the rotating shaft moves downwards to pass through the lower surface of the clapboard, the blades arranged on the periphery of the through hole cut the straws on the surface of the rotating shaft, and the cut straws fall to the bottom of the stokehole storage bin and finally enter the boiler through the conveyor; according to the invention, the straw materials with longer length are crushed through the rotating shaft and the blades, so that the size of the biomass fuel is reduced, the soft straw materials are prevented from being soft in texture and not strong in flowability, the phenomena of material winding and bridging are serious in the conveying process, meanwhile, the arrangement of the spiral feeding device can be reduced, the fuel conveying distance is shortened, the condition of multiple faults in the long-distance conveying process is prevented, the crushed fuel is more uniform in material pushing and feeding, the combustion effect is better, and the utilization rate of the biomass fuel is effectively improved.

Preferably, the pushing device comprises a second telescopic rod, a sleeve and a hinged rod; the second telescopic rod is fixedly connected with the inner wall of the stokehole bin, a sleeve is fixedly connected to the outer surface of the main rod of the second telescopic rod, the sleeve is in a cubic structure design, and the branch rods of the second telescopic rod are positioned inside the sleeve; the right end of the branch rod of the second telescopic rod is hinged with the front end and the rear end of the push plate through a pair of hinged rods; the push plate consists of a plurality of sliding plates which can stretch and slide, the interiors of the sliding plates are both of a hollow structure, and springs are fixedly connected inside the sliding plates at two ends; when the biomass fuel feeding device works, the push plate moves rightwards to push the biomass fuel with shorter length to fall to the lower part of the partition plate through the through hole, the biomass fuel with longer length enters the groove, and at the moment, the biomass fuel continuously enters the feeding cylinder, so that the push plate moves leftwards to return to the initial position and easily drives part of the biomass fuel with longer length to return to the left end of the partition plate; by arranging the sleeve and the hinge rod, when the push plate moves rightwards, the second telescopic rod is in an extending state to drive the hinge rod to slide out of the sleeve, and meanwhile, each sliding plate in the push plate slides outwards under the action of the spring, so that the lengths of the front end and the rear end of the push plate are increased, and biomass fuel with longer length is pushed to enter the groove; when the push pedal moved left, the second telescopic link was in the shrink state, and it is inside to drive the hinge bar and slide into the sleeve, and two hinge bars receive the extrusion of sleeve lateral wall and do relative motion, and then drive the inside slide of push pedal and inwards slide, and the spring is compressed and makes push pedal fore-and-aft direction length reduce, drives partial biomass fuel and pushes away in the baffle left side when effectively preventing the thrust plate and move left to improve biomass fuel's treatment effeciency, guarantee the normal operating of device.

Preferably, the front side wall and the rear side wall of the sleeve are rotationally connected with balls which are uniformly distributed; during operation, two articulated arms have the trend of outside expansion all the time because the elastic force of spring for the frictional resistance that the articulated arm received when the sleeve is inside to slide is great, sets up the ball and can become rolling friction with the sliding friction between articulated arm and the sleeve, effectively reduces the frictional resistance between articulated arm and the sleeve, reduces the damage that the articulated arm received, improves the life of articulated arm.

Preferably, a connecting shaft is arranged at the center of the lower surface of the protective shell, and the upper end of the connecting shaft penetrates through the protective shell and is fixedly connected with the corresponding first telescopic rod; the lower end of the connecting shaft is fixedly connected with a rotating roller, and the outer surface of the rotating roller is fixedly connected with uniformly arranged blades; the during operation, the bottom that the left through-hole of baffle got into stokehold feed bin is mostly passed through to the biomass fuel who handles, because biomass fuel's texture is soft, the mobility is relatively poor, along with stokehold feed bin constantly feeds, make stokehold feed bin left side pile up a large amount of fuel, first telescopic link drives the connecting axle and rotates this moment, and then drive commentaries on classics roller and blade and rotate, the accumulational biomass fuel in stokehold feed bin left side can be stirred when the blade rotates, make biomass fuel evenly be covered with whole stokehold feed bin, increase stokehold feed bin interior biomass fuel's of stokehold feed bin storage capacity, improve stokehold feed bin's effective.

Preferably, the surface of the blade is provided with uniformly arranged spray holes, the spray holes are all arranged obliquely downwards, and one-way valves are arranged in the spray holes; an air passage is arranged in the rotary roller, one end of the air passage penetrates through the connecting shaft and the inner wall of the bottom of the protective shell and is connected with an air pump arranged behind a furnace front bin, and the spray hole is communicated with the air passage; the during operation, because biomass fuel is at the production process or deposit the in-process and have certain moisture, make biomass fuel can not burn completely, cause the waste of resource, and moist biomass fuel adhesive force is strong, easy adhesion is in the pipe wall, influence biomass fuel's material loading efficiency, through air pump air feed in to the air flue, when making the rotor roll drive blade pivoted, the gaseous biomass fuel of blowout in the orifice is dried, thereby effectively improve biomass fuel's dryness factor, increase biomass fuel's combustion efficiency and resource utilization, orifice slope multiplicable fuel mobility downwards makes the blanking smooth and easy simultaneously, prevent biomass fuel adhesion pipe wall, improve biomass fuel's material loading efficiency.

Preferably, a valve plate is fixedly connected in the discharging barrel, a rectangular through groove is formed in the valve plate, a pair of adjusting plates are rotatably connected in the rectangular through groove, and a third telescopic rod is hinged between the lower surfaces of the adjusting plates and the inner wall of the discharging barrel; during operation, the distance between two adjustable regulating plates of concertina movement through control third telescopic link to the size of control discharge gate and the ejection of compact speed of stokehold feed bin when preventing to the boiler feed, change roller and blade and rotate and make the interior fuel of stokehold feed bin whereabouts rapidly, the normal operating of conveyer is influenced to the feed speed is too fast.

The invention has the following beneficial effects:

1. according to the feeding device for the stokehole bin of the biomass power plant, the rotating shaft and the blade are arranged, so that straw materials with longer length can be crushed, the size of biomass fuel is reduced, the phenomenon that soft straw materials are wound and bridged seriously in the conveying process due to light and soft texture and poor flowability is prevented, meanwhile, the arrangement of the spiral feeding device can be reduced, the fuel conveying distance is shortened, the condition that faults occur frequently in the long-distance conveying process is prevented, the crushed fuel is more uniform in pushing and feeding, the combustion effect is better, and the utilization rate of the biomass fuel is effectively improved.

2. According to the feeding device for the stokehole storage bin of the biomass power plant, due to the arrangement of the spray holes and the air passages, due to the fact that certain moisture exists in the biomass fuel in the production process or the storage process, the biomass fuel cannot be completely combusted, resource waste is caused, the wet biomass fuel is high in adhesive force and easy to adhere to the wall of the tube, the feeding efficiency of the biomass fuel is influenced, the rotating roller drives the blades to rotate through supplying air into the air passages, meanwhile, the gas sprayed out of the spray holes dries the biomass fuel, the dryness of the biomass fuel is effectively improved, the combustion efficiency and the resource utilization rate of the biomass fuel are increased, meanwhile, the fuel flowability is increased due to the fact that the spray holes are inclined downwards, the blanking is smooth, the biomass fuel is prevented from adhering to the wall of the tube, and the.

3. According to the feeding device for the stokehole bin of the biomass power plant, the adjusting plates are arranged, and the distance between the two adjusting plates can be adjusted by controlling the telescopic motion of the third telescopic rod, so that the size of the discharge port and the discharging speed of the stokehole bin are controlled, the situation that fuel in the stokehole bin falls down rapidly due to the rotation of the rotary roller and the blades when the fuel is fed to a boiler, and the normal operation of a conveyor is influenced due to the fact that the feeding speed is too high is prevented.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a schematic view of a first configuration of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

FIG. 4 is a cross-sectional view of a push plate;

in the figure: the device comprises a stokehole storage bin 1, a feeding barrel 11, a discharging barrel 12, a valve plate 121, a rectangular through groove 122, an adjusting plate 123, a third telescopic rod 124, a partition plate 2, a push plate 21, a groove 22, a through hole 23, a second telescopic rod 24, a sleeve 25, a hinged rod 26, a sliding plate 27, a spring 28, a ball 29, a protective shell 3, a first telescopic rod 31, a rotating shaft 32, a stirring rod 33, a blade 34, a gear 35, a motor 36, a connecting shaft 4, a rotating roller 41, a blade 42, a spray hole 43 and an air passage 44.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 4, the stokehole bunker feeding device of the biomass power plant comprises a stokehole bunker 1, a partition plate 2 and a protective shell 3; the whole furnace front storage bin 1 is designed to be cylindrical, and the lower end of the furnace front storage bin 1 is designed to be conical; the upper surface of the left side of the stokehole bin 1 is provided with a feeding barrel 11, the lower end of the stokehole bin 1 is provided with a discharging barrel 12, and the discharging barrel 12 is communicated with a boiler through a conveyor; a partition plate 2 is fixedly connected to the inner part of the upper end of the stokehole bin 1, a push plate 21 is arranged on the upper surface of the left side of the partition plate 2, the push plate 21 moves left and right on the upper surface of the partition plate 2 through a pushing device arranged on the left side of the stokehole bin 1, and the push plate 21 is positioned on the left side of the feeding cylinder 11 in an initial state; the middle part of the upper surface of the clapboard 2 is provided with a groove 22 which is arranged in the front and back, and the cross section of the groove 22 is designed in an arc shape; through holes 23 are uniformly arranged in the partition board 2, and one row of through holes 23 are positioned in the groove 22; a protective shell 3 is arranged below the partition plate 2, the protective shell 3 is fixedly connected with the inner wall of the stokehole bin 1, and the upper end of the protective shell 3 is in a conical design; first telescopic rods 31 are uniformly arranged in the protection shell 3, the first telescopic rods 31 are arranged in one-to-one correspondence with the through holes 23 in the grooves 22, and the upper ends of the first telescopic rods 31 extend out of the protection shell 3; the upper ends of the first telescopic rods 31 are fixedly connected with rotating shafts 32, the rotating shafts 32 extend out of the through holes 23, the outer surfaces of the upper ends of the rotating shafts 32 are fixedly connected with uniformly arranged stirring rods 33, the stirring rods 33 are hook-shaped structures, and the outer surfaces of the upper ends of the rotating shafts 32 are provided with pressure sensors; the through holes 23 in the groove 22 are fixedly connected with blades 34 which are uniformly arranged on the periphery of the lower surface, one side of each blade 34 relative to the rotating shaft 32 is a cutting edge, the blades 34 are designed to be tightly attached to the surface of the rotating shaft 32, and the blades 34 and the stirring rods 33 are alternately arranged; the outer surface of the lower end of the first telescopic rod 31 is fixedly connected with a gear 35, two adjacent gears 35 are meshed with each other, and the lower surface of the first telescopic rod 31 located at the rearmost part of the protective shell 3 is fixedly connected with the output end of the motor 36.

When the biomass fuel conveying device works, the biomass fuel is conveyed into the feeding cylinder 11, enters the stokehold bin 1 through the feeding cylinder 11 and falls on the upper surface of the partition plate 2, the pushing device controls the push plate 21 to move rightwards, the push plate 21 drives the biomass fuel on the surface of the partition plate 2 to move when moving, the biomass fuel is small in size, the biomass fuel with short length falls below the partition plate 2 through the through hole 23, and the biomass fuel with longer length is accumulated on the surface of the partition plate 2 and pushed into the groove 22 by the push plate 21; meanwhile, the motor 36 is started, the motor 36 drives the first telescopic rod 31 located at the rearmost part of the protective shell 3 to rotate, and then the gear 35 is meshed to drive other first telescopic rods 31 to rotate, the first telescopic rod 31 drives the rotating shaft 32 and the stirring rod 33 to rotate when rotating, because the stirring rod 33 is of a hook-shaped structure, the biomass fuel in the groove 22 is stirred when the stirring rod 33 rotates, the straw fuel with longer length is wound on the surface of the rotating shaft 32, the pressure applied to the pressure sensor is increased along with the continuous increase of the straw wound on the surface of the rotating shaft 32, the motor 36 is controlled to stop rotating at the moment, the positions of the blade 34 and the stirring rod 33 are staggered after the motor 36 stops rotating, the first telescopic rod 31 drives the rotating shaft 32 to move downwards by controlling the telescopic motion of the first telescopic rod 31, the blade 34 arranged around the through hole 23 cuts up the straw on the surface of the rotating shaft 32 when the rotating shaft 32 moves downwards through the lower, the chopped straws fall to the bottom of a stokehole storage bin 1 and finally enter a boiler through a conveyor; according to the invention, the straw materials with longer length are crushed through the rotating shaft 32 and the blade 34, so that the size of the biomass fuel is reduced, the phenomenon that the soft straw materials are seriously wound and bridged due to light and soft texture and low flowability in the conveying process is prevented, meanwhile, the arrangement of a spiral feeding device can be reduced, the fuel conveying distance is shortened, the condition that multiple faults occur in the long-distance conveying process is prevented, the crushed fuel is more uniform in material pushing and feeding, the combustion effect is better, and the utilization rate of the biomass fuel is effectively improved.

As an embodiment of the present invention, the pushing means includes a second telescopic rod 24, a sleeve 25 and a hinge rod 26; the second telescopic rod 24 is fixedly connected with the inner wall of the stokehole bin 1, a sleeve 25 is fixedly connected to the outer surface of a main rod of the second telescopic rod 24, the sleeve 25 is in a cubic structure design, and branch rods of the second telescopic rod 24 are located inside the sleeve 25; the right end of the branch rod of the second telescopic rod 24 is hinged with the front end and the rear end of the push plate 21 through a pair of hinged rods 26; the push plate 21 is composed of a plurality of sliding plates 27 capable of sliding in a telescopic mode, the insides of the sliding plates 27 are both hollow structures, and springs 28 are fixedly connected to the insides of the sliding plates 27 at the two ends.

During operation, the push plate 21 moves rightwards to push the biomass fuel with shorter length to fall below the partition plate 2 through the through hole 23, and the biomass fuel with longer length enters the groove 22, at the moment, the biomass fuel continuously enters the feeding barrel 11, so that the biomass fuel with longer length is easy to drive part of the biomass fuel to return to the left end of the partition plate 2 together when the push plate 21 moves leftwards to return to the initial position; by arranging the sleeve 25 and the hinge rod 26, when the push plate 21 moves rightwards, the second telescopic rod 24 is in an extended state, the hinge rod 26 is driven to slide out of the sleeve 25, and meanwhile, each sliding plate 27 in the push plate 21 slides outwards under the action of the spring 28, so that the lengths of the front end and the rear end of the push plate 21 are increased, and biomass fuel with longer length is pushed into the groove 22; when push pedal 21 moved left, second telescopic link 24 was in the shrink state, it is inside to drive hinge bar 26 to slide into sleeve 25, two hinge bars 26 receive the extrusion of sleeve 25 lateral wall and do relative motion, and then drive the inside slide 27 of push pedal 21 and inwards slide, spring 28 is compressed and is made push pedal 21 fore-and-aft direction length reduce, it pushes away in baffle 2 left side to drive partial biomass fuel when effectively preventing push pedal 21 from moving left, thereby improve biomass fuel's treatment effeciency, guarantee the normal operating of device.

In one embodiment of the present invention, the front and rear side walls of the sleeve 25 are rotatably connected with balls 29 which are uniformly arranged; in operation, two articulated rods 26 have the trend of outside expansion all the time because the elastic force effect of spring 28 for the frictional resistance that articulated rod 26 received when the inside slip of sleeve 25 is great, set up ball 29 and can become rolling friction with the sliding friction between articulated rod 26 and the sleeve 25, effectively reduce the frictional resistance between articulated rod 26 and the sleeve 25, reduce the damage that articulated rod 26 received, improve articulated rod 26's life.

As an embodiment of the present invention, a connecting shaft 4 is disposed at the center of the lower surface of the protective casing 3, and the upper end of the connecting shaft 4 penetrates through the protective casing 3 and is fixedly connected to the corresponding first telescopic rod 31; the lower end of the connecting shaft 4 is fixedly connected with a rotating roller 41, and the outer surface of the rotating roller 41 is fixedly connected with uniformly arranged blades 42; during operation, the bottom that the good biomass fuel of processing got into stokehold feed bin 1 mostly through the left through-hole 23 of baffle 2, because biomass fuel's texture is soft, the mobility is relatively poor, along with stokehold feed bin 1 constantly feeds, make stokehold feed bin 1 left side pile up a large amount of fuel, first telescopic link 31 drives connecting axle 4 and rotates this moment, and then drive runner 41 and blade 42 and rotate, can stir stokehold feed bin 1 left side pile up's biomass fuel when blade 42 rotates, make biomass fuel evenly be covered with whole stokehold feed bin 1, increase stokehold feed bin 1 interior biomass fuel's of stokehold feed bin storage capacity, improve stokehold feed bin 1's effective volume, ensure that boiler fuel lasts the supply.

As an embodiment of the present invention, the surface of the vane 42 is provided with uniformly arranged spray holes 43, the spray holes 43 are all arranged obliquely downwards, and the spray holes 43 are all provided with one-way valves therein; an air passage 44 is arranged in the rotary roller 41, one end of the air passage 44 penetrates through the connecting shaft 4 and the inner wall of the bottom of the protective shell 3 and is connected with an air pump arranged behind the stokehole bin 1, and the spray hole 43 is communicated with the air passage 44; during operation, because biomass fuel has certain moisture at the production process or deposits the in-process, make biomass fuel can not burn completely, cause the waste of resource, and moist biomass fuel adhesive force is strong, easily adhere in the pipe wall, influence biomass fuel's material loading efficiency, air feed in to air flue 44 through the air pump, when making change roller 41 drive blade 42 pivoted, the gaseous biomass fuel of blowout is dried in orifice 43, thereby effectively improve biomass fuel's degree of dryness, increase biomass fuel's combustion efficiency and resource utilization, orifice 43 slope simultaneously can increase fuel mobility downwards makes smooth and easy blanking, prevent biomass fuel transportation in-process adhesion pipe wall, improve biomass fuel's material loading efficiency.

As an embodiment of the present invention, a valve plate 121 is fixedly connected in the discharging barrel 12, a rectangular through groove 122 is formed in the valve plate 121, a pair of adjusting plates 123 are rotatably connected in the rectangular through groove 122, and a third telescopic rod 124 is hinged between the lower surface of the adjusting plate 123 and the inner wall of the discharging barrel 12; during operation, the distance between two adjustable regulating plates 123 is adjusted through the concertina movement of control third telescopic link 124 to the size of control discharge gate and the ejection of compact speed of stokehole feed bin 1 prevent to change roller 41 and blade 42 rotation and make the rapid whereabouts of fuel in stokehole feed bin 1 when the boiler feed, the normal operating of conveyer is influenced to the feed speed is too fast.

The specific working process of the invention is as follows:

when the biomass fuel conveying device works, the biomass fuel is conveyed into the feeding cylinder 11, enters the stokehold bin 1 through the feeding cylinder 11 and falls on the upper surface of the partition plate 2, the push plate 21 is pushed to move, when the push plate 21 moves rightwards, the second telescopic rod 24 is in an extending state and drives the hinged rod 26 to slide out of the sleeve 25, meanwhile, each sliding plate 27 in the push plate 21 slides outwards under the action of the spring 28, so that the lengths of the front end and the rear end of the push plate 21 are increased, the push plate 21 drives the biomass fuel on the surface of the partition plate 2 to move, wherein the biomass fuel with small size and short length falls below the partition plate 2 through the through hole 23, and the biomass fuel with longer length is accumulated on the surface of the partition plate 2 and is pushed into; when the push plate 21 moves leftwards, the second telescopic rod 24 is in a contracted state, the hinged rods 26 are driven to slide into the sleeve 25, the two hinged rods 26 are extruded by the side wall of the sleeve 25 and move relatively, the sliding plate 27 in the push plate 21 is driven to slide inwards, the spring 28 is compressed, the length of the push plate 21 in the front-back direction is reduced, and a part of biomass fuel is prevented from being pushed to the left side of the partition plate 2 when the push plate 21 moves leftwards; the balls 29 arranged in the front side wall and the rear side wall of the sleeve 25 can reduce the friction resistance between the hinge rod 26 and the sleeve 25, reduce the damage to the hinge rod 26 and prolong the service life of the hinge rod 26; meanwhile, the motor 36 is started, the motor 36 drives the first telescopic rod 31 located at the rearmost part of the protective shell 3 to rotate, and then the gear 35 is meshed to drive other first telescopic rods 31 to rotate, the first telescopic rod 31 drives the rotating shaft 32 and the stirring rod 33 to rotate when rotating, because the stirring rod 33 is of a hook-shaped structure, the biomass fuel in the groove 22 is stirred when the stirring rod 33 rotates, the straw fuel with longer length is wound on the surface of the rotating shaft 32, the pressure applied to the pressure sensor is increased along with the continuous increase of the straw wound on the surface of the rotating shaft 32, the motor 36 is controlled to stop rotating at the moment, the positions of the blade 34 and the stirring rod 33 are staggered after the motor 36 stops rotating, the first telescopic rod 31 drives the rotating shaft 32 to move downwards by controlling the telescopic motion of the first telescopic rod 31, the blade 34 arranged around the through hole 23 cuts up the straw on the surface of the rotating shaft 32 when the rotating shaft 32 moves downwards through the lower, the chopped straws fall to the bottom of a stokehole storage bin 1 and finally enter a boiler through a conveyor; according to the invention, the straw materials with longer length are crushed through the rotating shaft 32 and the blade 34, so that the size of the biomass fuel is reduced, the phenomenon that the soft straw materials are seriously wound and bridged due to light and soft texture and low flowability in the conveying process is prevented, meanwhile, the arrangement of a spiral feeding device can be reduced, the fuel conveying distance is shortened, the condition that multiple faults occur in the long-distance conveying process is prevented, the crushed fuel is more uniform in material pushing and feeding, the combustion effect is better, and the utilization rate of the biomass fuel is effectively improved.

Most of processed biomass fuel enters the bottom of the stokehole bin 1 through the through hole 23 in the left side of the partition plate 2, due to the fact that the biomass fuel is soft in texture and poor in flowability, a large amount of fuel is accumulated in the left side of the stokehole bin 1 along with continuous feeding of the stokehole bin 1, the first telescopic rod 31 drives the connecting shaft 4 to rotate at the moment, the rotating roller 41 and the blade 42 are driven to rotate, the biomass fuel accumulated in the left side of the stokehole bin 1 can be stirred when the blade 42 rotates, the whole stokehole bin 1 is uniformly filled with the biomass fuel, the storage capacity of the biomass fuel in the stokehole bin 1 is increased, the effective volume of the stokehole bin 1 is increased; meanwhile, air is supplied into the air passage 44 through the air pump, so that when the rotating roller 41 drives the blades 42 to rotate, air is sprayed out of the spray holes 43 to dry the biomass fuel, the dryness of the biomass fuel is effectively improved, the combustion efficiency and the resource utilization rate of the biomass fuel are increased, the fuel fluidity can be increased due to the fact that the spray holes 43 are inclined downwards, blanking is smooth, the biomass fuel is prevented from being adhered to the pipe wall, and the feeding efficiency of the biomass fuel is improved; simultaneously through the adjustable distance between two regulating plates 123 of the concertina movement of control third telescopic link 124 to the size of control discharge gate and the ejection of compact speed of stokehold feed bin 1, when preventing to the boiler feed, change roller 41 and blade 42 and rotate and make the rapid whereabouts of fuel in stokehold feed bin 1, the normal operating of conveyer is influenced to the feed speed is too fast.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.