CN218125620U

CN218125620U - Fuel refining device for biomass power plant

Info

Publication number: CN218125620U
Application number: CN202222149138.0U
Authority: CN
Inventors: 曲毅; 郝进伟; 丁宇; 刘雪; 杨宏旺; 徐慧荟; 曹惠翔; 张华巍
Original assignee: Econ Technology Co Ltd
Current assignee: Econ Technology Co Ltd
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2022-12-27
Anticipated expiration: 2032-08-16

Abstract

The utility model discloses a be used for biomass power plant fuel refining device relates to biomass power generation technical field, and the device is including the refining cylinder that is used for bearing living beings, refining cylinder inside is equipped with and is used for carrying out kibbling crushing roller to the living beings, crushing roller upper end is equipped with and is used for carrying out kibbling crushing sword to the living beings, the crushing roller lower extreme is connected and is used for driving its quick pivoted crushing driving piece, refining cylinder inside is equipped with a filter screen that is used for carrying out the screening to crushing back living beings, is located the crushing roller of filter screen below and is equipped with the blowback subassembly that is used for preventing that living beings from blockking up the screening hole on the filter screen, and this application has set up when carrying out the refining to power plant biomass fuel and has prevented stifled the subassembly, guarantees can not produce the problem of jam when smashing to plant straw, has guaranteed going on smoothly of refining, has guaranteed machining efficiency.

Description

Fuel refining device for biomass power plant

Technical Field

The utility model relates to a biomass power generation technical field specifically is a be used for biomass power plant fuel refining device.

Background

The biomass power generation is power generation by using biomass energy of biomass, is one of renewable energy power generation, and comprises agriculture and forestry waste direct combustion power generation, agriculture and forestry waste gasification power generation, waste incineration power generation, waste landfill gas power generation and methane power generation, and biomass energy resources in China are very rich, and the development of biomass power generation industry has wide prospects. Need mix biomass material and coal charge when carrying out biomass power generation, it is not enough to mix inhomogeneous can lead to the post combustion, though provide among the prior art can be smashed biomass, then the method of biomass and coal charge mixture after will smashing, nevertheless the biomass after smashing causes the filter screen to block up easily, be unfavorable for guaranteeing unloading speed, can't guarantee the ratio of biomass and coal charge, based on this, provide a fuel refining device for biomass power plant now, can eliminate the drawback that current device exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be used for biomass power plant fuel refining device to solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a fuel refining device for a biomass power plant comprises a refining barrel for bearing biomass, wherein a crushing shaft for crushing the biomass is arranged in the refining barrel, a crushing knife for crushing the biomass is arranged at the upper end of the crushing shaft, the lower end of the crushing shaft is connected with a crushing driving piece for driving the crushing driving piece to rotate rapidly, a filter screen for screening the crushed biomass is arranged in the refining barrel, and a back-blowing component for preventing the biomass from blocking a screening hole in the filter screen is arranged on the crushing shaft below the filter screen;

the coal blending device is characterized in that a feeding barrel communicated with an inner cavity of the feeding barrel is arranged on the lower right side of the material blending barrel, a feeding opening is formed in the upper left end of the feeding barrel and communicated with the lower end of a lower coal pipe, a blanking valve is arranged on the lower coal pipe, a coal storage barrel used for storing coal is connected to the upper end of the lower coal pipe, a pushing shaft is horizontally arranged in the feeding barrel, the right end of the pushing shaft is connected with a second motor used for driving the pushing shaft to rotate, a pushing blade used for pushing the coal and biomass is arranged on the pushing shaft, a material mixing rod used for stirring the coal and the biomass is further arranged on the pushing shaft, and a discharging opening used for discharging materials is formed in the lower right side of the feeding barrel.

On the basis of the technical scheme, the utility model discloses still provide following optional technical scheme:

in one alternative: the coal feeding device is characterized in that a plugging ring is coaxially arranged on the outer side of the pushing shaft where the coal feeding pipe is located, the outer side of the plugging ring is in sliding seal with the inner wall of the feeding barrel, the plugging ring and the pushing shaft are fixedly connected through a plurality of connecting rods, and a plurality of discharging openings used for leaking materials are formed in the plugging ring.

In one alternative: the blowback subassembly is including setting up the air guide inner chamber inside crushing roller, the air guide inner chamber upper end outside is equipped with a blowback clear hole pipe, blowback clear hole pipe and air guide inner chamber intercommunication, the distribution of blowback clear hole pipe upper surface has a plurality of to be used for jet-propelled air jet nozzle up, the crushing roller lower extreme passes refining barrel bottom, crushing roller lower extreme intercommunication has an inlet box, inlet box outside array distribution has a plurality of air inlet, and every air inlet position all is equipped with a drainage blade that is used for guiding the air admission.

In one alternative: the drainage blade and the tangent line of the outer side of the air inlet box form an acute angle.

In one alternative: the bottom in the material homogenizing barrel is provided with a guide inclined plane for guiding the biomass to the right.

In one alternative: the guide inclined plane is provided with a ceramic layer.

In one alternative: the crushing driving part comprises a driven gear arranged at the lower end of the crushing shaft, a first motor is installed at the bottom of the material homogenizing barrel on one side of the driven gear, and a driving gear meshed with the driven gear is arranged at the output end of the first motor.

Compared with the prior art, the beneficial effects of the utility model are as follows:

this application has set up when carrying out the refining to power plant biomass fuel and has prevented stifled subassembly, guarantees can not produce the problem of jam when smashing the plant straw, has guaranteed going on smoothly of refining, has guaranteed machining efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the internal structure of the present invention.

Fig. 3 is a schematic view of the lower side structure of the present invention.

Fig. 4 is a schematic diagram of a plugging ring structure in an embodiment of the present invention.

Notations for reference numerals: the device comprises a material homogenizing barrel 11, a crushing cutter 12, a filter screen 13, an air jet 14, a back-blowing hole cleaning pipe 15, an air guide inner cavity 16, a guide inclined plane 17, a first motor 18, a driving gear 19, an air inlet box 20, a flow guide blade 21, a driven gear 22, a feed opening 23, a plugging ring 24, a material mixing rod 25, a discharge opening 26, a material pushing shaft 27, a second motor 28, a material feeding barrel 29, a material pushing blade 30, a coal feeding pipe 31, a coal storage barrel 32 and a crushing shaft 33.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

In one embodiment, as shown in fig. 1-4, a fuel refining device for a biomass power plant comprises a refining barrel 11 for bearing biomass, a crushing shaft 33 for crushing the biomass is arranged in the refining barrel 11, a crushing knife 12 for crushing the biomass is arranged at the upper end of the crushing shaft 33, a crushing driving member for driving the crushing shaft 33 to rotate rapidly is connected at the lower end of the crushing shaft 33, a filter screen 13 for screening the crushed biomass is arranged in the refining barrel 11, a back-blowing component for preventing the biomass from blocking a screening hole on the filter screen 13 is arranged on the crushing shaft 33 below the filter screen 13, the back-blowing component comprises an air guide inner cavity 16 arranged in the crushing shaft 33, a back-blowing hole cleaning pipe 15 is arranged outside the upper end of the air guide inner cavity 16, the back-blowing hole cleaning pipe 15 is communicated with an air guide inner cavity 16, a plurality of air nozzles 14 for spraying air upwards are distributed on the upper surface of the back-blowing hole cleaning pipe 15, the lower end of the crushing shaft 33 penetrates through the bottom of the material homogenizing barrel 11, the lower end of the crushing shaft 33 is communicated with an air inlet box 20, a plurality of air inlets are distributed on the outer side of the air inlet box 20 in an array manner, a drainage blade 21 for guiding air to enter is arranged at each air inlet, an acute angle is formed between the drainage blade 21 and the outer side tangent line of the air inlet box 20, when the crushing shaft 33 rotates rapidly, the drainage blade can guide the air to enter the air guide inner cavity 16 rapidly, the air flows upwards along the air guide inner cavity 16, and then the air flow is sprayed out along the air nozzles 14, so that the air flow from bottom to top is generated, the hole cleaning operation of the filter screen 13 is realized, and the problem of blockage is avoided;

a feeding barrel 29 communicated with the inner cavity of the material homogenizing barrel 11 is arranged on the lower right side of the material homogenizing barrel 11, a feeding port is arranged at the upper left end of the feeding barrel 29 and is communicated with the lower end of a lower coal pipe 31, a coal storage barrel 32 used for storing coal is connected to the upper end of the lower coal pipe 31, a pushing shaft 27 is horizontally arranged in the feeding barrel 29, the right end of the pushing shaft 27 is connected with a second motor 28 used for driving the pushing shaft to rotate, a pushing blade 30 used for pushing the coal and biomass is arranged on the pushing shaft 27, a mixing rod 25 used for stirring the coal and the biomass is further arranged on the pushing shaft 27, the pushing shaft 27 drives the pushing blade 30 and the mixing rod 25 to rotate under the action of the second motor 28, the pushing blade 30 can generate driving force on the material, so that the feeding barrel 29 moves from left to right, the mixing rod 25 can fully mix the biomass and the coal in the moving process, a discharge port 26 used for discharging the mixed mixture smoothly along the discharge port 26 is arranged on the lower right side of the feeding barrel 29;

in order to enable the coal in the coal storage cylinder 32 to intermittently fall, a blanking valve is arranged on the lower coal pipe 31, a plugging ring 24 is coaxially arranged on the outer side of a pushing shaft 27 where the lower coal pipe 31 is located, the outer side of the plugging ring 24 is in sliding seal with the inner wall of the feeding cylinder 29, the plugging ring 24 is fixedly connected with the pushing shaft 27 through a plurality of connecting rods, a plurality of blanking ports 23 for leakage are formed in the plugging ring 24, so that the coal can enter the feeding cylinder 29 only when the lower ends of the blanking ports 23 and the lower coal pipe 31 are overlapped, the lower end of the lower coal pipe 31 can be intermittently plugged by the plugging ring 24 under the driving of the pushing shaft 27, the coal can intermittently enter the feeding cylinder 29, and the falling frequency corresponds to the moving speed of the biomass in the feeding cylinder 29;

in order to make the biomass enter the feeding barrel 29 more easily, a guide inclined plane 17 for guiding the biomass to the right is arranged at the bottom in the material homogenizing barrel 11, and a ceramic layer is arranged on the guide inclined plane 17 to reduce the friction force of the biomass sliding downwards;

the crushing driving part comprises a driven gear 22 arranged at the lower end of a crushing shaft 33, a first motor 18 is arranged at the bottom of the material refining barrel 11 on one side of the driven gear 22, a driving gear 19 meshed with the driven gear 22 is arranged at the output end of the first motor 18, the driving gear 19 is driven to rotate through the first motor 18, the driving gear 19 drives the driven gear 22 to rotate, and the driven gear 22 drives the crushing shaft 33 to rotate, so that power is provided for crushing;

the embodiment discloses a fuel refining device for a biomass power plant, when the device is actually used, plant straws are firstly added into a refining barrel 11, the plant straws are crushed by a crushing cutter 12 to obtain crushed biomass materials, qualified crushed materials pass through a filter screen 13, when a crushing shaft 33 rotates rapidly, air is guided by a drainage blade to enter an air guide inner cavity 16 rapidly, the air flows upwards along the air guide inner cavity 16 and then is sprayed out along an air nozzle 14, so that a bottom-to-top air flow is generated, hole cleaning operation on the filter screen 13 is realized, the problem of blockage is avoided, qualified materials enter a feeding barrel 29 under the guidance of a guide inclined plane 17, the pushing shaft 27 drives a pushing blade 30 and a mixing rod 25 to rotate under the action of a second motor 28, the pushing blade 30 generates a driving force on the materials, so that the feeding barrel 29 moves from left to right, the mixing rod 25 can fully mix the biomass materials and the coal materials in the moving process, and the mixed materials can be discharged smoothly along a discharge port 26, and thus the refining operation on the biomass fuel is completed.

The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a be used for biomass power plant fuel refining device, is including being used for bearing the weight of the refining cylinder (11) of living beings, refining cylinder (11) inside is equipped with and is used for carrying out kibbling crushing axle (33) to the living beings, crushing axle (33) upper end is equipped with and is used for carrying out kibbling crushing sword (12) to the living beings, crushing axle (33) lower extreme is connected and is used for driving its quick pivoted crushing driving piece, its characterized in that, refining cylinder (11) inside is equipped with one and is used for carrying out the filter screen (13) screened to the post-crushing living beings, is located to be equipped with on crushing axle (33) of filter screen (13) below and is used for preventing that living beings from blockking up the blowback subassembly in the sieve selection hole on filter screen (13);

the coal refining device is characterized in that a feeding barrel (29) communicated with an inner cavity of the feeding barrel is arranged on the lower right side of the refining barrel (11), a feeding opening is formed in the upper left end of the feeding barrel (29), the feeding opening is communicated with the lower end of a coal discharging pipe (31), a discharging valve is arranged on the coal discharging pipe (31), a coal storage barrel (32) used for storing coal is connected to the upper end of the coal discharging pipe (31), a material pushing shaft (27) is horizontally arranged in the feeding barrel (29), the right end of the material pushing shaft (27) is connected with a second motor (28) used for driving the material pushing shaft to rotate, a material pushing blade (30) used for pushing the coal and biomass is arranged on the material pushing shaft (27), a material mixing rod (25) used for mixing the coal and the biomass is further arranged on the material pushing shaft (27), and a discharging opening (26) used for discharging is formed in the lower right side of the feeding barrel (29).

2. The fuel refining device for the biomass power plant according to claim 1, characterized in that a plugging ring (24) is coaxially arranged at the outer side of the material pushing shaft (27) where the coal discharging pipe (31) is located, the outer side of the plugging ring (24) is in sliding seal with the inner wall of the material feeding barrel (29), the plugging ring (24) and the material pushing shaft (27) are fixedly connected through a plurality of connecting rods, and a plurality of material discharging openings (23) for material leakage are formed in the plugging ring (24).

3. The fuel refining device for the biomass power plant according to claim 1, wherein the back blowing component comprises an air guide inner cavity (16) arranged inside the crushing shaft (33), a back blowing hole pipe (15) is arranged on the outer side of the upper end of the air guide inner cavity (16), the back blowing hole pipe (15) is communicated with the air guide inner cavity (16), a plurality of air nozzles (14) used for spraying air upwards are distributed on the upper surface of the back blowing hole pipe (15), the lower end of the crushing shaft (33) penetrates through the bottom of the refining barrel (11), an air inlet box (20) is communicated with the lower end of the crushing shaft (33), a plurality of air inlets are distributed on the outer side of the air inlet box (20) in an array manner, and each air inlet position is provided with a drainage blade used for guiding air to enter.

4. The fuel refining apparatus for biomass power plant according to claim 3, characterized in that the guide vanes are arranged at an acute angle to the tangent outside the inlet box (20).

5. The fuel refining apparatus for biomass power plant according to claim 1, characterized in that the bottom inside the refining barrel (11) is provided with a guide slope (17) for guiding the biomass to the right.

6. The fuel refining device for biomass power plant according to claim 5, characterized in that the guiding inclined plane (17) is provided with a ceramic layer.

7. The fuel refining apparatus for biomass power plant according to claim 1, characterized in that the pulverizing drive member comprises a driven gear (22) arranged at the lower end of the pulverizing shaft (33), a first motor (18) is mounted at the bottom of the refining barrel (11) at one side of the driven gear (22), and the output end of the first motor (18) is provided with a driving gear (19) meshed with the driven gear (22).