CN210856030U

CN210856030U - Conveying system for providing wood chip powder for granulator

Info

Publication number: CN210856030U
Application number: CN201921342517.3U
Authority: CN
Inventors: 王智峰; 王�华; 江凤凤; 谢奕斌; 蔡伟强; 蔡少文
Original assignee: Xiamen Luhai Environment Protection Co ltd; Zhangzhou Luhai Environment Protection Industry Development Co ltd
Current assignee: Xiamen Luhai Environment Protection Co ltd; Zhangzhou Luhai Environment Protection Industry Development Co ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-06-26
Anticipated expiration: 2029-08-19

Abstract

The utility model discloses a conveying system for providing sawdust powder for a granulator, which comprises a negative pressure conveying pipe, a closed sawdust powder bin, a cyclone separator and a dust remover, wherein one end of the negative pressure conveying pipe is connected with a discharge port of a crusher, the other end of the negative pressure conveying pipe is connected with a side gas inlet of the cyclone separator, a gas outlet at the upper part of the cyclone separator is connected with a first fan air suction port, a first fan air outlet is connected with the dust remover through a pipeline, a dust cleaning port of the dust remover is connected with a second fan air suction port through a pipeline, and a second fan air outlet is connected with the upper part of the sawdust powder bin through a; a discharge port at the lower part of the cyclone separator is connected with the feed end of a first spiral conveyor through an air seal device, and the discharge end of the first spiral conveyor is connected with the upper part of a sawdust powder bin; a second screw conveyor is arranged at the lower part of the sawdust bin, and the discharge end of the second screw conveyor is connected with the feed inlet of the granulator; a stirring tool is arranged in the sawdust powder bin. The utility model discloses degree of automation is higher, can ensure to carry the quality for the workplace satisfies environmental protection, safety requirement.

Description

Conveying system for providing wood chip powder for granulator

Technical Field

The utility model belongs to the technical field of biomass fuel production facility technique and specifically relates to a conveying system who provides saw-dust powder for granulator.

Background

Nowadays, utilize the saw-dust powder to make biomass fuel and need pass through granulator extrusion granulation, because the feed inlet of granulator is higher, current pay-off mode is accomplished with the help of screw conveyer usually, but screw conveyer's feed end needs artifical material loading again, operating personnel need send screw conveyer's feed end to the saw-dust powder that the rubbing crusher smashed the completion, because the saw-dust powder granularity that offers granulator granulation usefulness is less, fly away along with the air current easily at the in-process of material loading, cause the powder extravagant on the one hand, on the other hand polluted environment and have the potential safety hazard, influence operating personnel's healthy and safe operation. In addition, the conveying automation degree is low due to the fact that manual conveying is needed, and conveying quality is difficult to guarantee.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a conveying system who provides the saw-dust powder for the granulator, it carries degree of automation higher, can ensure to carry the quality for workplace satisfies environmental protection, healthy, safe requirement.

In order to achieve the above purpose, the technical scheme of the utility model is that: a conveying system for providing sawdust powder for a granulator comprises a negative pressure conveying pipe, a closed sawdust powder bin, a cyclone separator and a dust remover, wherein one end of the negative pressure conveying pipe is connected with a discharge port of a grinder, the other end of the negative pressure conveying pipe is connected with a side gas inlet of the cyclone separator, a gas outlet at the upper part of the cyclone separator is connected with a first fan air suction port, a first fan air outlet is connected with the dust remover through a pipeline, a dust removing port of the dust remover is connected with a second fan air suction port through a pipeline, and a second fan air outlet is connected with the upper part of the sawdust powder bin through a pipeline; a discharge port at the lower part of the cyclone separator is connected with the feed end of a first spiral conveyor through an air seal device, and the discharge end of the first spiral conveyor is connected with the upper part of a sawdust powder bin; a second screw conveyor is arranged at the lower part of the sawdust bin, the feeding end of the second screw conveyor is communicated with the inner space of the sawdust bin, and the discharging end of the second screw conveyor is connected with the feeding hole of the granulator; the wood chip powder bin is internally provided with a stirring tool driven by a motor.

The improved wood chip powder bin is characterized in that a plurality of second spiral conveyors are arranged at the lower part of the wood chip powder bin, and the discharge end of each second spiral conveyor is connected with the feed inlet of one granulator. To improve the conveying speed and the granulating efficiency.

Preferably, the dust remover is a bag-type dust remover.

Preferably the shredder is a blade shredder.

The wood chip powder bin is further improved, the bottom of the wood chip powder bin and the second spiral conveyor are inclined to the horizontal plane, and the inclination angle of the bottom of the wood chip powder bin is the same as that of the second spiral conveyor. So as to facilitate feeding of the second screw conveyor.

Preferably, the stirring tool comprises a stirring shaft driven by a motor, and a plurality of stirring blades extending along the radial direction are arranged on the stirring shaft.

The improved negative pressure material conveying pipe comprises a horizontal section and a vertical section, wherein the horizontal section is connected with a discharge port of the pulverizer, the vertical section is connected with the lower end of the horizontal section, a material settling section extends downwards at the joint of the vertical section and the horizontal section, and a material cleaning gate is arranged on the material settling section. Like this, the in-process of saw-dust powder rebound in vertical section, some heavier metal or other materials that are mingled with in the saw-dust powder will subside to the material and subside in the section, then clear away through opening the clear material gate, can clear away the impurity such as metal in the saw-dust powder better, further improve the quality of saw-dust powder.

Still further, one side of the horizontal section, which is far away from the vertical section, is provided with an air inlet, the air inlet is connected with an air outlet of a third fan, and air pressure generated by the third fan assists in pushing sawdust powder at a discharge port of the pulverizer to move. When the saw-dust powder piles up more or because of the saw-dust powder moisture absorption is heavier, guarantee through the auxiliary transportation of third fan that the saw-dust powder can reliably be carried through the negative pressure conveying pipeline.

The utility model discloses because the transport of saw-dust powder all moves in more confined space, also need not artifical the participation, its transport degree of automation is high, and conveying efficiency is also higher, and the saw-dust powder can outwards not fly away basically yet simultaneously, reduces saw-dust powder loss for workplace satisfies environmental protection, healthy, safe requirement.

On the other hand, after the wood chip powder enters the cyclone separator, most of the thicker wood chip powder falls into the lower part of the cyclone separator, and then the wood chip powder is conveyed into a wood chip powder bin through a first spiral conveyor; meanwhile, some thinner sawdust powder is captured by the dust remover through a pipeline through a gas outlet on the upper part of the cyclone separator, the thinner sawdust powder is also sent into the sawdust powder bin through a second fan and the pipeline after the dust remover removes dust, the thicker sawdust powder and the thinner sawdust powder are mixed through stirring of a stirring tool in the sawdust powder bin to form sawdust powder with stable quality, and the sawdust powder is sent into the granulator through a second spiral conveyer to be granulated. It can also ensure the conveying quality of the wood chip powder.

Drawings

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

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, a conveying system for providing wood chip powder for a granulator comprises a negative pressure conveying pipe 1, a closed wood chip powder bin 2, a cyclone separator 3 and a dust remover 4, wherein one end of the negative pressure conveying pipe 1 is connected with a discharge port of a pulverizer 10, the other end of the negative pressure conveying pipe 1 is connected with a side gas inlet of the cyclone separator 3, an upper gas outlet of the cyclone separator 3 is connected with a first fan 5 air suction port, an air outlet of the first fan 5 is connected with the dust remover 4 through a pipeline, a dust cleaning port of the dust remover 4 is connected with an air suction port of a second fan 6 through a pipeline, and an air outlet of the second fan 6 is connected with an upper part of the wood chip powder bin; a discharge port at the lower part of the cyclone separator 3 is connected with the feed end of a first screw conveyor 7 through an air seal device 31, and the discharge end of the first screw conveyor 7 is connected with the upper part of the sawdust bin 2; two second screw conveyors 8 are arranged at the lower part of the sawdust bin 2, the two second screw conveyors 8 are arranged in parallel and are inclined to the horizontal plane, the feeding end of each second screw conveyor 8 is communicated with the inner space of the sawdust bin 2, and the discharging end of each second screw conveyor 8 is connected with the feeding hole of a granulator 9; the wood chip powder bin 2 is internally provided with a stirring tool 22 driven by a motor 21.

The stirring tool 22 includes a stirring shaft 221 driven by the motor 21, and the stirring shaft 221 is provided with a plurality of stirring blades 222 extending in the radial direction.

The dust remover 4 is a bag-type dust remover 4.

The shredder 10 is a blade shredder 10.

The airlock 31 is a device that provides a sealed, uniform discharge to the lower portion of the cyclone 3 and is commercially available.

The bottom of the sawdust bin 2 is inclined to the horizontal plane, and the inclination angle of the bottom of the sawdust bin 2 is the same as the inclination angle of the second screw conveyor 8.

The negative pressure conveying pipe 1 comprises a horizontal section 11 connected with a discharge port of the pulverizer 10 and a vertical section 12 of which the lower end is connected with the horizontal section 11, the vertical section 12 extends downwards to form a material settling section 13 at the joint of the vertical section 12 and the horizontal section 11, and a material cleaning gate 14 is arranged on the material settling section 13.

An air inlet is formed in one side, far away from the vertical section 12, of the horizontal section 11 and is connected with an air outlet of a third fan 15, and air pressure generated by the third fan 15 assists in pushing sawdust powder at a discharge port of the pulverizer 10 to move. To prevent the accumulation of wood dust.

In the working process of the embodiment, the first fan 5 rotates to work to provide negative pressure for the negative pressure delivery pipe 1, the negative pressure delivery pipe 1 sucks powder output from the discharge port of the pulverizer 10 through the horizontal section 11 of the negative pressure delivery pipe, meanwhile, the air pressure generated by the third fan 15 assists in pushing the sawdust powder at the discharge port of the pulverizer 10 to move, the sawdust powder passes through the horizontal section 11 and then moves upwards along the vertical section 12 of the negative pressure conveying pipe 1, in the process of moving upwards in the vertical section 12, some heavier metals or other materials mixed in the wood dust powder will settle in the material settling section 13 for better impurity removal, then the sawdust powder enters a cyclone separator 3 for separation, most of the thicker sawdust powder falls into the lower part of the cyclone separator 3, then the wood chip powder falls into the feeding end of the first screw conveyer 7 through the air lock 31, and the first screw conveyer 7 sends the wood chip powder into the wood chip powder bin 2; meanwhile, some fine sawdust powder is captured by the dust remover 4 through a pipeline through an upper gas outlet of the cyclone separator 3, the fine sawdust powder is also fed into the sawdust powder bin 2 through the second fan 6 and the pipeline after the dust remover 4 removes dust, the coarse sawdust powder and the fine sawdust powder are stirred and mixed through the stirring tool 22 in the sawdust powder bin 2 to form sawdust powder with stable quality, and the sawdust powder is fed into the granulator 9 through the second spiral conveyor 8 to be granulated.

The above is only a preferred embodiment of the present invention, and all changes that can be made by those skilled in the art according to the appended claims will fall within the scope of the present invention.

Claims

1. The utility model provides a conveying system for provide saw-dust powder for granulator which characterized in that: the wood chip dust remover comprises a negative pressure conveying pipe, a closed wood chip powder bin, a cyclone separator and a dust remover, wherein one end of the negative pressure conveying pipe is connected with a discharge port of a grinder, the other end of the negative pressure conveying pipe is connected with a side gas inlet of the cyclone separator, a gas outlet at the upper part of the cyclone separator is connected with a first fan air suction port, a first fan air outlet is connected with the dust remover through a pipeline, a dust removing port of the dust remover is connected with a second fan air suction port through a pipeline, and a second fan air outlet is connected with the upper part of the wood chip powder bin through; a discharge port at the lower part of the cyclone separator is connected with the feed end of a first spiral conveyor through an air seal device, and the discharge end of the first spiral conveyor is connected with the upper part of a sawdust powder bin; a second screw conveyor is arranged at the lower part of the sawdust bin, the feeding end of the second screw conveyor is communicated with the inner space of the sawdust bin, and the discharging end of the second screw conveyor is connected with the feeding hole of the granulator; the wood chip powder bin is internally provided with a stirring tool driven by a motor.

2. The conveying system for supplying wood dust to a granulator according to claim 1, wherein: and the lower part of the sawdust bin is provided with a plurality of second spiral conveyors, and the discharge end of each second spiral conveyor is connected with the feed inlet of one granulator.

3. The conveying system for supplying wood dust to a granulator according to claim 1, wherein: the dust remover is a bag-type dust remover.

4. The conveying system for supplying wood dust to a granulator according to claim 1, wherein: the crusher is a blade crusher.

5. The conveying system for supplying wood dust to a granulator according to claim 1, wherein: the bottom of the sawdust bin and the second spiral conveyor are both inclined to the horizontal plane, and the inclination angle of the bottom of the sawdust bin is the same as that of the second spiral conveyor.

6. The conveying system for supplying wood dust to a granulator according to claim 1, wherein: the stirring tool comprises a stirring shaft driven by a motor, and a plurality of stirring blades extending along the radial direction are arranged on the stirring shaft.

7. A conveyor system for supplying wood chip fines to a pellet mill according to any one of claims 1 to 6, wherein: the negative pressure conveying pipe comprises a horizontal section and a vertical section, the horizontal section is connected with a discharge port of the pulverizer, the vertical section is connected with the lower end of the horizontal section, a material settling section extends downwards at the joint of the vertical section and the horizontal section, and a material cleaning gate is arranged on the material settling section.

8. The conveying system for supplying wood dust to a granulator according to claim 7, wherein: the horizontal section is kept away from vertical section one side and is equipped with the air intake, and the air intake connection third fan air outlet, and the saw-dust powder that the air pressure that the third fan produced helps promoting the rubbing crusher discharge gate removes.