CN114250094B - Biomass fuel preparation device - Google Patents

Abstract

The present invention relates to the field of biomass fuel, and in particular to a biomass fuel preparation device, which can prepare fuel rods of equal length for easy transportation; the biomass fuel preparation device comprises a conveying pipe, a pushing mechanism, a forming pipe, a mounting frame and a cutting mechanism, the forming pipe is arranged at the rear end of the conveying pipe, the mounting frame is fixed to the rear end of the forming pipe, the cutting mechanism for cutting off the fuel is connected to the mounting frame, and the pushing mechanism is connected to the conveying pipe; an adding pipe is arranged on the upper side of the front end of the conveying pipe; the pushing mechanism comprises a pushing shaft and a spiral plate, the pushing shaft rotates in the conveying pipe, and the spiral plate is fixed on the pushing shaft.

Description

A biomass fuel preparation device

Technical Field

The invention relates to the field of biomass fuel, and in particular to a biomass fuel preparation device.

Background technique

Biomass fuel is different from fossil fuel. It mainly uses agricultural and forestry waste, such as straw, sawdust, bagasse, rice bran and other biomass materials as fuel. During preparation, agricultural and forestry waste is crushed, mixed, extruded, dried and other processes to be made into blocks or granules.

In current biomass fuel preparation settings, the raw materials are mostly compressed into irregularly shaped small pieces or particles during preparation. However, since the small pieces or particles cannot be placed during transportation, they are tightly supported against each other during stacking, resulting in a waste of space and are therefore inconvenient to transport.

Summary of the invention

The purpose of the present invention is to provide a biomass fuel preparation device, which can prepare fuel rods of equal length for easy transportation.

The purpose of the present invention is achieved through the following technical solutions:

A biomass fuel preparation device comprises a delivery pipe, a pushing mechanism, a forming pipe, a mounting frame and a cutting mechanism. The forming pipe is arranged at the rear end of the delivery pipe, the mounting frame is fixed to the rear end of the forming pipe, the cutting mechanism for cutting off the fuel is connected to the mounting frame, and the pushing mechanism is connected to the delivery pipe.

An adding pipe is arranged on the upper side of the front end of the delivery pipe.

The pushing mechanism comprises a pushing shaft and a spiral plate. The pushing shaft rotates in the conveying pipe, and the spiral plate is fixed on the pushing shaft.

The cutting mechanism comprises a tool holder frame, a cutting knife and a reciprocating wheel. The tool holder frame slides in the mounting frame, the cutting knife is arranged in the middle of the mounting frame, and a reciprocating wheel rotates at the upper end of the mounting frame, and the reciprocating wheel is meshed and transmission-connected with the tool holder frame.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a biomass fuel preparation device;

FIG2 is a structural schematic diagram of a mounting frame;

FIG3 is a second schematic diagram of the structure of the mounting frame;

FIG4 is a schematic diagram of an enlarged structure of a mounting frame;

FIG5 is a schematic diagram of the structure of a push mechanism;

FIG6 is a schematic structural diagram of a tool holder frame;

FIG7 is a schematic diagram of the structure of the limit frame;

FIG8 is a schematic structural diagram of an embodiment of cutting grooves in a fuel rod;

FIG9 is a partial structural schematic diagram of an embodiment of cutting grooves in a fuel rod;

Figure 10 is a schematic diagram of the structure of the horizontal blade plate;

FIG11 is a schematic diagram of the structure of the top wheel;

Figure 12 is a schematic diagram of the structure of the cleaning roller;

FIG13 is a schematic diagram of the structure of the central column;

FIG. 14 is a schematic diagram of the structure of the fuel rod prepared by the present device.

In the figure:

Delivery pipe 101; Adding pipe 102; Forming pipe 103; Mounting frame 104; Collecting box 105; Mounting block 106; Support arm plate 107;

Pushing shaft 201; spiral plate 202;

Tool holder frame 301; cutting knife 302; horizontal knife plate 303; bidirectional screw 304; grooving knife 305; reciprocating wheel 306;

Limiting frame 401; rack track 402; conveying wheel 403;

Lifting carriage 501; cleaning roller 502; eccentric shaft 503; top wheel 504; top wheel frame 505;

Central column 601; linkage plate 602; screw rod 603; threaded sleeve 604.

Detailed ways

As shown in Figure 1-13:

A biomass fuel preparation device includes a delivery pipe 101, a pushing mechanism, a forming pipe 103, a mounting frame 104 and a cutting mechanism. The forming pipe 103 is arranged at the rear end of the delivery pipe 101, and the mounting frame 104 is fixed to the rear end of the forming pipe 103. The cutting mechanism for cutting off the fuel is connected to the mounting frame 104, and the pushing mechanism is connected to the delivery pipe 101.

The prepared raw materials are added into the conveying pipe 101, and the pushing mechanism is started to push the raw materials into the molding tube 103, so that the raw materials are extruded and molded in the molding tube 103. As the raw materials are continuously conveyed, the molded fuel is continuously extruded in the molding tube 103, and the molded fuel continuously slides out at the rear end of the molding tube 103, and then the molded fuel is cut through the cutting mechanism to obtain fuel rods of equal length, thereby facilitating transportation.

Furthermore, an adding pipe 102 is provided on the upper front end of the delivery pipe 101 .

The provision of the adding pipe 102 facilitates the addition of raw materials into the conveying pipe 101 through the adding pipe 102 . Meanwhile, a flared opening is provided at the upper end of the adding pipe 102 , thereby facilitating the addition of raw materials into the adding pipe 102 .

As shown in Figure 5:

The pushing mechanism includes a pushing shaft 201 and a spiral plate 202 . The pushing shaft 201 rotates in the delivery tube 101 , and the spiral plate 202 is fixed on the pushing shaft 201 .

A conveying motor is installed on the conveying pipe 101, and the conveying motor drives the pushing shaft 201, so that the pushing shaft 201 drives the spiral plate 202 to rotate in the conveying pipe 101, thereby pushing the raw materials in the conveying pipe 101, so that the raw materials are gathered toward the forming pipe 103, and the channel of the forming pipe 103 is reduced, so that the raw materials are squeezed and compressed in the forming pipe 103. With the continuous conveyance of the raw materials, the raw materials are continuously formed in the forming pipe 103, so as to obtain fuel rods, which are cut into fuel rods of equal length by the cutting mechanism, so as to facilitate the transportation of the fuel.

As shown in Figure 6:

The cutting mechanism includes a tool holder frame 301, a cutting knife 302 and a reciprocating wheel 306. The tool holder frame 301 slides inside the mounting frame 104, the cutting knife 302 is arranged in the middle of the mounting frame 104, and a reciprocating wheel 306 rotates at the upper end of the mounting frame 104, and the reciprocating wheel 306 is meshed and drivenly connected with the tool holder frame 301.

A reciprocating motor is installed on the mounting frame 104, and the reciprocating motor drives the reciprocating wheel 306 to rotate back and forth, thereby driving the tool holder frame 301 to move back and forth on the mounting frame 104. The reciprocating tool holder frame 301 drives the cutting knife 302 to move back and forth at the rear end outlet of the forming tube 103, thereby forming a reciprocating cutting of the fuel at the outlet of the forming tube 103, thereby obtaining fuel rods of equal length, which is convenient for transporting the fuel.

As shown in Figure 7:

The limiting frame 401 is also included. The limiting frame 401 is fixed on the mounting frame 104 , and the limiting frame 401 is arranged corresponding to the forming tube 103 .

The limiting frame 401 is fixed to the rear side of the mounting frame 104 by bolts, so that the inner cavity of the limiting frame 401 corresponds to the forming tube 103, so that the fuel rods sliding out of the limiting frame 401 can directly enter the limiting frame 401, and the limiting frame 401 is used to limit the two sides of the fuel rods cut by the cutting knife 302, thereby facilitating the cutting of the fuel rods by the cutting knife 302.

Furthermore, the two conveying wheels 403 rotate in the limiting frame 401 , and the conveying belt 404 rotates on the two conveying wheels 403 .

First, after the cutting knife 302 cuts the fuel rod, the cut fuel rod falls onto the conveyor belt 404, which receives the fuel rod to prevent the fuel rod from breaking. The two conveyor wheels 403 support the two ends of the conveyor belt 404, so that the conveyor belt 404 can form a buffer when receiving the fuel rod, further preventing the fuel rod from being damaged.

By installing a conveying motor on the limiting frame 401, the conveying motor drives the conveying wheel 403, thereby driving the conveying belt 404 to rotate in the limiting frame 401, so as to convey the fuel rods and collect the fuel rods in a centralized manner.

As shown in Figure 2-4:

The forming tube 103 further includes a collecting box 105 , which is fixed to the forming tube 103 and is located directly below the tool holder frame 301 .

When the cutting knife 302 cuts the fuel rod, cut debris will be generated at the cut portion of the fuel rod. The collecting box 105 is provided to collect the debris and prevent the debris from falling freely, thereby affecting the working environment.

As shown in Figure 8-10:

It also includes a transverse blade plate 303 and a grooving knife 305. The two transverse blade plates 303 are respectively connected to the upper and lower sides of the blade holder frame 301. A plurality of grooving knives 305 are fixed on the inner sides of the two transverse blade plates 303. The grooving knives 305 on the two transverse blade plates 303 are symmetrically arranged.

A plurality of grooving knives 305 are installed on the upper and lower sides of the knife frame 301 through the cross knife plate 303. When the knife frame 301 moves back and forth, after the cutting knife 302 cuts off the fuel, the knife frame 301 continues to move in this direction, thereby driving the grooving knives 305 to move. After the fuel rod moves a distance from the outlet of the forming tube 103, the grooving knives 305 contact the fuel rod and groove the upper and lower sides of the fuel rod to obtain a fuel rod with upper and lower grooves.

As the fuel rod is removed from the forming tube 103, the tool holder frame 301 continues to move, and the next group of grooving knives 305 continue to groove the fuel rod. When the tool holder frame 301 moves in the direction, the grooving knives 305 continue to groove the fuel rod until the cutting knife 302 cuts the fuel rod, thereby obtaining a section of fuel rod with multiple uniform grooves on both sides of the upper and lower sides. As the tool holder frame 301 reciprocates, fuel rods with multiple uniform grooves on both sides of the upper and lower sides of equal length are obtained.

The grooving knives 305 on the two transverse blades 303 are symmetrically arranged, so that when the grooving knives 305 groove the upper and lower sides of the fuel rod, the groove positions can be opposite to each other, which is convenient for breaking the fuel rod;

By providing multiple uniform grooves on the upper and lower sides of each fuel rod, the fuel rod remains easy to transport and can be easily broken to obtain small fuel blocks, which are easy to place in the combustion furnace for combustion.

further,

It also includes bidirectional screws 304 , which rotate on two sides of the tool holder frame 301 , respectively. Two ends of the two transverse blade plates 303 are respectively threadedly connected to two ends of the two bidirectional screws 304 .

By setting the bidirectional screw rod 304, the two bidirectional screw rods 304 are rotated at the same time, and the two cross blade plates 303 can be threadedly driven, so that the two cross blade plates 303 can be moved closer or farther away at the same time, and then the grooving knives 305 on the upper and lower sides are adjusted to move closer or farther away, and finally the purpose of adjusting the grooving depth on the fuel rod is achieved, so that the device can adapt to the hardness of different raw materials after compression molding. By adjusting the grooving depth, the fuel rods of different raw materials can maintain the overall characteristic of being easy to transport, and at the same time, it is easy to break the fuel rods, and the fuel rods will not be too easy to break or hard due to the raw materials.

As shown in Figure 10:

It also includes a mounting block 106, a top wheel 504 and a top wheel frame 505. The two mounting blocks 106 are respectively fixed on both sides of the mounting frame 104. The two top wheel frames 505 are respectively rotated in the two mounting blocks 106 through torsion springs. The two top wheel frames 505 are both rotatably connected to the top wheels 504. The two top wheel frames 505 are both tightly pressed against the mounting frame 104.

The top wheel frame 505 drives the top wheel 504 to move toward the tool holder frame 301 through the elastic force of the torsion spring. At the same time, the top wheel 504 is limited by the mounting frame 104, so that the top wheel 504 can contact the cutting knife 302 and the slotting knife 305 in the tool holder frame 301, thereby pushing the fuel debris retained on the slotting knife 305 backward, so that the fuel debris retained on the slotting knife 305 is separated from the slotting knife 305 and falls downward into the collection box 105 for centralized collection;

The top wheel 504 cleans the fuel debris retained on the grooving knife 305, thereby effectively preventing the retained fuel debris from affecting the grooving operation of the grooving knife 305 again.

As shown in Figure 12:

It also includes a rack rail 402, a lifting slide 501, a cleaning roller 502 and an eccentric shaft 503. Rack rails 402 are fixed on both sides of the limit frame 401. The lifting slide 501 slides in the two rack rails 402. Cleaning rollers 502 are rotated on both sides of the lifting slide 501. The two cleaning rollers 502 are respectively meshed and connected with the two rack rails 402. An eccentric shaft 503 is fixed at the eccentric part of the reciprocating wheel 306, and the eccentric shaft 503 is slidably connected to the lifting slide 501.

When the reciprocating wheel 306 reciprocates, the reciprocating wheel 306 drives the lifting slide 501 to lift and reciprocate on the limit frame 401 through the eccentric shaft 503, thereby driving the cleaning roller 502 to lift and reciprocate on both sides of the limit frame 401, thereby cleaning the cutting knife 302 and the grooving knife 305 in the knife frame 301, and further cleaning the fuel debris retained on the grooving knife 305;

At the same time, when the cleaning roller 502 is lifted and reciprocated, it is meshed and connected with the rack rail 402, so that the cleaning roller 502 rotates on the lifting slide 501 about its own axis, further improving the efficiency of cleaning the fuel debris retained on the grooving knife 305.

As shown in Figure 13:

It also includes an arm plate 107, a center column 601, a linkage plate 602, a screw 603 and a threaded sleeve 604. The center column 601 is fixed to the lower end of the linkage plate 602, the screw 603 is fixed to the upper end of the linkage plate 602, the linkage plate 602 penetrates and slides on the forming tube 103, the arm plate 107 is fixed on the conveying tube 101, and a threaded sleeve 604 is rotatably arranged on the arm plate 107, and the threaded sleeve 604 is threadedly connected to the screw 603.

By setting the center column 601, when the raw material is pushed to the forming tube 103 for compression molding, the center column 601 blocks the compressed raw material, so that when the raw material is molded, a hole is formed at the center column 601, so that the center of the obtained fuel rod has a void hole, so that when the fuel is burned, the contact area between the fuel and the air is increased, and the combustion efficiency of the fuel is improved;

By rotating the threaded sleeve 604, the threaded transmission screw 603 moves in the threaded sleeve 604, and then drives the central column 601 to move through the linkage plate 602, thereby adjusting the position of the middle hole of the molding raw material, so that the device can adapt to the fuel preparation of different raw materials;

The pointed cone arrangement on the inner side of the central column 601 makes it easier for the central column 601 to cooperate with the forming tube 103 to extrude and compress the raw materials.

Claims (5)

1. A biomass fuel preparation device, characterized in that it comprises a delivery pipe (101), a pushing mechanism, a forming pipe (103), a mounting frame (104) and a cutting mechanism, wherein the rear end of the delivery pipe (101) is provided with a forming pipe (103), the rear end of the forming pipe (103) is fixed with a mounting frame (104), the mounting frame (104) is connected with a cutting mechanism for cutting off the fuel, and the delivery pipe (101) is connected with a pushing mechanism; The cutting mechanism comprises a tool holder frame (301), a cutting knife (302) and a reciprocating wheel (306); the tool holder frame (301) slides in the mounting frame (104); a cutting knife (302) is provided in the middle of the mounting frame (104); the reciprocating wheel (306) rotates at the upper end of the mounting frame (104); the reciprocating wheel (306) is meshed and transmission-connected with the tool holder frame (301); It also includes a limiting frame (401), which is fixed on the mounting frame (104) and is arranged corresponding to the forming tube (103); Two conveying wheels (403) are rotatable in the limiting frame (401), and conveying belts (404) are rotatable on the two conveying wheels (403); It also includes a collection box (105), which is fixed on the forming tube (103) and is located directly below the tool holder frame (301); The tool holder frame (301) further comprises a transverse blade plate (303) and a grooving blade (305). The upper and lower sides of the tool holder frame (301) are both connected with the transverse blade plate (303). A plurality of grooving blades (305) are arranged inside the two transverse blade plates (303). The grooving blades (305) on the two transverse blade plates (303) are symmetrically arranged. 2. A biomass fuel preparation device according to claim 1, characterized in that an addition pipe (102) is provided on the upper side of the front end of the delivery pipe (101). 3. A biomass fuel preparation device according to claim 1, characterized in that: the pushing mechanism includes a pushing shaft (201) and a spiral plate (202), the pushing shaft (201) is rotatably connected in the conveying pipe (101), and the spiral plate (202) is fixed on the pushing shaft (201). 4. A biomass fuel preparation device according to claim 1, characterized in that it also includes a bidirectional screw (304), and bidirectional screws (304) are rotated on both sides of the tool holder frame (301), and the two ends of the two bidirectional screws (304) are respectively threadedly connected to the two ends of the two cross blades (303). 5. A biomass fuel preparation device according to claim 4, characterized in that it also includes a mounting block (106), a top wheel (504) and a top wheel frame (505), mounting blocks (106) are fixed on both sides of the mounting frame (104), top wheel frames (505) are rotated in the two mounting blocks (106) through torsion springs, top wheels (504) are rotated on the two top wheel frames (505), and the two top wheel frames (505) are tightly pressed against the mounting frame (104).