CN109046177B

CN109046177B - Granulating mechanism

Info

Publication number: CN109046177B
Application number: CN201811042988.2A
Authority: CN
Inventors: 梁念喜; 王靖东; 阮景波
Original assignee: Anhui Dingliang Science And Technology Energy Co ltd
Current assignee: Anhui Dingliang Science And Technology Energy Co ltd
Priority date: 2018-09-07
Filing date: 2018-09-07
Publication date: 2021-07-23
Anticipated expiration: 2038-09-07
Also published as: CN109046177A

Abstract

The invention relates to the field of energy processing and manufacturing, in particular to a granulating mechanism which comprises a material receiving box and a granulating assembly arranged below the material receiving box. The invention has the following beneficial effects: 1. the working mode that the grinding disc is rotated by the compression roller is not rotated, the compression roller revolves around the grinding disc under the driving of the main shaft, and meanwhile, the compression roller rotates, so that the granulating efficiency is high. 2. Set up the water conservancy diversion structure in connecing the workbin, can be with comparatively reasonable speed guide material entering mill and compression roller between, can not take place to block up because of the too fast of material gushes into, improve pelletization efficiency.

Description

Granulating mechanism

Technical Field

The invention relates to the field of energy processing and manufacturing, relates to processing and manufacturing of biomass energy, and particularly relates to a granulating mechanism.

Background

Because the biomass such as crop straws and the like is difficult to treat, the biomass is traditionally only roughly combusted in situ, which is one of the causes of forest fire and air pollution, and the timely appearance of the biomass granulator provides a solution for effectively solving the problem. The biomass comprises solid wastes such as corn stalks, wheat straws, peanut shells, corncobs, cotton stalks, soybean stalks, weeds, branches, leaves, sawdust, barks and the like of crops. To process biomass into molding fuel, typically, a kneader is generally needed to knead and cut the biomass, then a roller dryer is used for drying, and then a biomass granulator is used for processing the kneaded and cut biomass into small rod-shaped solid granular fuel, so that the combustion performance of the biomass is greatly improved, the dependence of human beings on petrochemical energy and atmospheric emission are reduced, the energy crisis is relieved, the environment is protected, the biomass granular fuel can replace firewood, raw coal, fuel oil, liquefied gas and the like, and the biomass molding fuel is widely used for heating, life, hot water boilers, industrial boilers, biomass stove power plants and the like.

The existing biomass granulator has the defects of low granulation efficiency, easy occurrence of feeding blockage and the like.

Disclosure of Invention

The invention aims to provide a granulating mechanism which can overcome the defects of the prior art, cannot be blocked due to too fast material inflow and has high granulating efficiency.

The technical purpose of the invention is realized by the following technical scheme:

the utility model provides a pelletization mechanism, is in including connecing the workbin and setting connect the pelletization subassembly of workbin below, its characterized in that, the pelletization subassembly is in by motor drive pivoted main shaft, setting in the position of mill axis including the mill that has the discharge opening the epaxial compression roller of compression roller, setting are in the epaxial compression roller of compression roller, the compression roller is driven by compression roller motor drive rotation by the compression roller to the compression roller axle.

The working mode that the grinding disc is rotated by the compression roller is adopted, the compression roller revolves around the grinding disc under the driving of the main shaft, and meanwhile, the compression roller rotates, so that the granulating efficiency is high.

A speed reducer is arranged between the motor and the main shaft, and the speed reducer adopts a K-series helical tooth-spiral bevel gear speed reducer, so that the bearing capacity is strong, the noise is low, the efficiency is high, and the operation is stable and reliable.

A flow guide structure for regularly falling biomass is arranged in the material receiving box; the flow guide structure comprises a flow guide outer cover, a flow guide inner cover and a flow guide plate group, wherein the upper end and the lower end of the flow guide outer cover are detachably connected to the material receiving box body, the flow guide inner cover is positioned in the middle of the material receiving box body and forms a gap with the flow guide outer cover, and the flow guide inner cover is connected with the flow guide outer cover and guides biomass to flow downwards.

The feed rate that anterior segment process to connect the workbin can exceed pelletization speed, leads to connecing the workbin in to block up, sets up the water conservancy diversion structure, can be so that connect the workbin to the feeding in the pelletization subassembly more smooth and easy, has avoided blockking up and has accelerated the pelletization again.

The flow guide outer cover is in a spindle shape and comprises an open material receiving part, a narrowed regulating part and a diffusion part which is smoothly connected with the regulating part from top to bottom; the material receiving part and the regulating part are continuous arc sections of the same arc.

The inner diversion cover is in a cone shape which is continuous from top to bottom and is from narrow to wide.

The flow guide plate group comprises one or more upper flow guide plates only connected with the inner flow guide cover, and at least two lower flow guide plates which are completely connected with the inner flow guide cover and the outer flow guide cover and are positioned below the upper flow guide plates; the upper guide plate and the lower guide plate are obliquely arranged in an arc shape, and the inclination angle of each guide plate is reduced from top to bottom in sequence; go up the guide plate with all open on the guide plate down and have a plurality of hourglass silo, it is the chute to leak the silo, and each the incline direction of leaking the silo and the incline direction of the guide plate on this hourglass silo position is greater than 90 on the contained angle of horizontal plane.

Set up hourglass silo, can control the feed rate between mill and the compression roller: the angle that is greater than 90 has between the direction that material gliding direction and material got into hourglass silo on the upper and lower guide plate, and the motion mutual interference of both materials has the effect that slows down the speed that the material got into between mill and the compression roller, and then prevents because the pelletization untimely material jam that leads to often.

In conclusion, the invention has the following beneficial effects:

1. the working mode that the grinding disc is rotated by the compression roller is not rotated, the compression roller revolves around the grinding disc under the driving of the main shaft, and meanwhile, the compression roller rotates, so that the granulating efficiency is high.

2. Set up the water conservancy diversion structure in connecing the workbin, can be with comparatively reasonable speed guide material entering mill and compression roller between, can not take place to block up because of the too fast of material gushes into, improve pelletization efficiency.

Drawings

FIG. 1 is a schematic diagram of one embodiment of the present invention;

FIG. 2 is an enlarged schematic view of a granulation structure in an embodiment of the present invention;

FIG. 3 is a schematic view of a granulation configuration in another embodiment of the present invention;

fig. 4 is a schematic view of a flow guiding structure according to an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the drawings and preferred embodiments.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Example 1:

as shown in fig. 1, a granulating mechanism includes a material receiving box 10, a granulating assembly disposed below the material receiving box, a scraper assembly 20 cooperating with the granulating assembly for granulating, and a material receiving screen 30 disposed below the granulating assembly, the granulating assembly includes a grinding disc 11 having a discharge hole, a main shaft 12 disposed at a central axis position of the grinding disc 11 and driven to rotate by a motor 16 and a speed reducer 15, a pressure roller shaft 13 disposed on the main shaft 12, and a pressure roller 14 disposed on the pressure roller shaft 13, the pressure roller shaft 13 drives the pressure roller 14 to rotate by a pressure roller motor (not shown), and the speed reducer adopts a K-series helical bevel gear speed reducer. The receiving screen 30 is located below the discharge of the grinding disc.

The top end of the main shaft 12 is fixedly provided with a top plate 121 through a screw, the compression roller shaft 13 is integrally arranged on the top plate 121, and the main shaft 12 drives the compression roller to rotate around the grinding disc.

Example 2:

the difference from the embodiment 1 is that a pushing block 17 is arranged at the top end of the press roll shaft as shown in fig. 3, and the pushing block 17 is driven by the press roll shaft to rotate so as to play a role in pushing the material.

Example 3:

the difference from the embodiment 2 is that a flow guide structure 201 for arranging falling biomass is arranged in the material receiving box 10, as shown in fig. 4, the flow guide structure 201 includes a flow guide outer cover 21 whose upper end and lower end are both connected to the material receiving box body through screws, an inner flow guide cover 22 which is located in the middle of the material receiving box body and forms a gap with the flow guide outer cover, and a flow guide plate group 23 which connects the inner flow guide cover with the flow guide outer cover and guides the biomass downward. The diversion outer cover 21 is in a spindle shape and comprises an open material receiving part 211, a narrowed regular part 212 and a diffusion part 213 which is smoothly connected with the regular part from top to bottom; the material receiving part 211 and the regulating part 212 are continuous arc sections of the same arc. The inner airflow guiding cover 22 is a cone which is continuously tapered from top to bottom and is wide, the vertical distance from any one of the material receiving part 211 and the regulating part 212 to the inner airflow guiding cover 22 is continuously and gradually reduced, and the vertical distance from any one of the diffusing parts 213 to the inner airflow guiding cover 22 is continuously and gradually increased. The flow guide plate group 23 includes one or more upper flow guide plates 231 (2 in this embodiment) connected to the inner flow guide casing only, and two lower flow guide plates 232 located below the upper flow guide plates and integrally connecting the inner flow guide casing 22 and the outer flow guide casing 21; the upper guide plate and the lower guide plate are obliquely arranged in an arc shape, and the inclination angle of each guide plate is reduced from top to bottom in sequence; go up the guide plate with all open on the guide plate down and have a plurality of hourglass silo, it is the chute to leak the silo, and each the incline direction of leaking the silo and the incline direction of the guide plate on this hourglass silo position is greater than 90 on the contained angle of horizontal plane.

Claims

1. A granulating mechanism comprises a material receiving box, a granulating assembly arranged below the material receiving box, a scraper assembly matched with the granulating assembly for granulating and a material receiving sieve positioned below the granulating assembly, and is characterized in that the granulating assembly comprises a grinding disc with a discharge hole, a main shaft arranged at the middle shaft position of the grinding disc and driven by a motor to rotate, a compression roller shaft arranged on the main shaft and a compression roller arranged on the compression roller shaft, and the compression roller shaft drives the compression roller to rotate under the driving of a compression roller motor; a flow guide structure for regularly falling biomass is arranged in the material receiving box; the flow guide structure comprises a flow guide outer cover, a flow guide inner cover, a flow guide plate group and at least two lower flow guide plates, wherein the upper end and the lower end of the flow guide outer cover are detachably connected to the material receiving box body; the upper guide plate and the lower guide plate are both obliquely arranged in an arc shape, and the inclination angle of each guide plate is sequentially reduced from top to bottom, wherein a plurality of material leaking grooves are formed in the upper guide plate and the lower guide plate, each material leaking groove is a chute, and the included angle between the inclination direction of each material leaking groove and the inclination direction of the guide plate at the position of the material leaking groove on the horizontal plane is larger than 90 degrees; the flow guide outer cover is in a spindle shape and comprises an open material receiving part, a narrowed regulating part and a diffusion part which is smoothly connected with the regulating part from top to bottom; the material receiving portion and the regulating portion are continuous arc sections of the same arc, and the flow guide inner cover is a cone which is continuous from narrow to wide from top to bottom.

2. The granulation mechanism as claimed in claim 1, wherein a top plate is mounted on the top end of the main shaft, and the pressure roller shaft is connected to the top plate and is driven to rotate by the main shaft.

3. The granulation mechanism as claimed in claim 2, wherein a push block is provided at the top end of the compression roller shaft.

4. The granulation mechanism as claimed in claim 1, wherein a speed reducer is provided between the motor and the main shaft, and the speed reducer is a K-series helical-bevel gear speed reducer.