Biomass straw pulverizer

Abstract

The utility model relates to a biomass straw pulverizer which solves the problem of biomass straw pulverizing. Comprising a support, an upper shell, a lower shell, a dust discharging opening, a first motor, a rotor I, a second motor, a rotor II, a belt, a feeding opening, a discharging opening, a movable cutter set and a fixed cutter set. The movable cutter group consists of a cutter holder, two bent cutters, a nut and a bolt; the fixed cutter set comprises a fixed cutter fixing plate and two fixed cutter blades. The straw pulverizer is high in straw pulverizing length qualification rate, the bent cutters and the fixed cutters of the pulverizing movable cutter set are long in service life, and the movable cutters and the fixed cutters are combined, so that the pulverizing capacity is high; the structure is compact, disassembly and assembly are convenient, operation is easy, carrying and moving are convenient and fast, and maintenance and repair are easy and feasible. The rotor rotating speed is high, the crushing effect is good, the working efficiency is high, and the applicable straw variety range is wide; the spirally arranged moving cutter group has large rotation diameter and large impact force, and is crossed with the fixed cutter, so that the crushing effect is good; multiple cutters are mounted, and the crushing capacity is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of biomass straw, and specifically relates to a biomass straw pulverizer. BACKGROUND

[0002] Not only our country as a big agricultural country, produces a large amount of biomass straw every year, and the quantity of biomass straw of each country in the world is also very huge.Biomass straw as a kind of renewable energy can be converted into chemical raw materials, such as bioethanol, butanol and the like, effectively reduces the consumption of fossil energy such as petroleum;Can be converted into organic fertilizer, is used in agricultural production, reduces the chemical fertilizer usage, improves the soil quality, promotes the sustainable development of agriculture;Can be converted into other high value-added products, such as biological plastics, biological fibers, etc., reduce the consumption of fossil energy and the pollution of chemical products to the environment.During the high value-added conversion process of straw as an important chemical raw material, the straw needs to be crushed to increase the physical and chemical rate and the conversion rate of straw.Biomass straw pulverizer as a kind of crop straw, branch and other biomass material cutting processing equipment can crush straw, branch and other materials into particles or fragments suitable for power generation, papermaking, wood-based panel, ethanol refining and other purposes, which can effectively utilize the waste biomass resources, reduce environmental pollution, improve soil quality and create good social benefits.

[0003] At present, the broken particle size of straw is often more than 10cm, and in the straw liquefaction process, the straw is easy to wind on the spiral rod of the spiral feeder during feeding, so that the feeder cannot work normally.The straw powder with smaller particle size needs to use ball mill and other equipment, but there are problems of low yield, small power and high cost.The key to solve this problem is the problems of straw feeding and discharging and crushing cutter.In order to solve this problem, it is of great significance to develop a device capable of quickly, batch and low-costly crushing biomass straw. SUMMARY

[0004] The utility model aims at overcoming the insufficient and defect of prior art, provide a kind of biomass straw pulverizer.

[0005] The utility model solves technical problem by the following technical scheme.The biomass straw pulverizer, including support, upper shell, lower shell, dust outlet, first motor, rotor I, second motor, rotor II, belt, feed inlet, discharge port, moving cutter group, fixed cutter group;

[0006] The moving cutter group is composed of a knife holder, two curved knives, a nut and a bolt;The fixed cutter group includes a fixed cutter fixing plate and two fixed cutter blades;

[0007] The support is a metal frame, and the upper shell, lower shell, first motor, second motor and the like are placed on the support at a certain height from the ground;

[0008] The upper shell is a trapezoidal box body, and a dust discharging port is formed in the upper surface of the trapezoidal box body for discharging the dust generated in the process of crushing the straw.

[0009] The lower shell is a rectangular box body, and a feeding port is formed in the upper surface of the lower shell. The rotor I and the rotor II are arranged in the lower shell. The first motor and the second motor are respectively arranged on the two sides of the lower shell. The first motor is connected with the rotor I through a belt, and the second motor is connected with the rotor II through a belt. The movable cutter group is arranged on the rotor I and the rotor II. The fixed cutter plate is arranged between the rotor I and the rotor II, and the fixed cutter blade is arranged on the fixed cutter plate.

[0010] A discharging port is arranged on the bottom of the lower shell along the length direction of the rotor, and the crushed straw is directly discharged from the discharging port.

[0011] Preferably, the discharging port is in the shape of a rectangle.

[0012] The two curved cutters of the movable cutter group arranged on the rotor I and the rotor II are in the shape of Y, and are fixed on the cutter seat through bolts and nuts, and can rotate on the bolt shaft of the cutter seat. The cutter seat is fixed on the rotor. The movable cutter group is arranged in a spiral shape on the rotor, and has a gap with the fixed cutter blade. Under the joint action of the curved cutter and the fixed cutter blade, the straw is crushed and cut.

[0013] The fixed cutter blade is a triangular blade, and two triangular blades are cross-welded on the fixed cutter plate.

[0014] The length of the fixed cutter plate is the same as the length of the rotor I and the rotor II.

[0015] In order to realize the crushing work of a large amount of straw, the diameter of the motor driving wheel of the crusher can be set to 320-370 mm, the diameter of the fine crusher rotor is 800-900 mm, the motor rotation speed is 1100-1500 r / m, the fine crusher rotor rotation speed is 900-1300 r / m, and the fine crusher rotor working linear speed is 40-60 m / s.

[0016] When the crusher works, the loose straw is first fed into the lower shell from the feeding port. The first motor and the second motor are turned on, and the rotor I and the rotor II rotate oppositely to crush the straw. The crushed straw flows out from the discharging port. The straw crusher can crush the straw with a length of 3-10 cm, and has a high qualified rate. The crushing capacity is 5-10 tons per hour, and the efficiency is high. The curved cutter of the movable cutter group and the fixed cutter blade are made of high wear-resistant material, and have a long service life. The movable cutter and the fixed cutter are combined, and have a strong crushing capacity. The structure is compact, and the crusher is easy to disassemble, assemble, operate, move, maintain and repair. The rotor has a high rotation speed, a good crushing effect, a high working efficiency, and a wide range of application. The movable cutter group is arranged in a spiral shape, has a large rotary diameter, and has a large impact force. The movable cutter is cross-arranged with the fixed cutter, and has a good crushing effect. The cutter has a large number of installations, and has a strong crushing capacity. Attached Figure Description

[0017] Appendix Figure 1 This is a schematic diagram of a biomass straw crusher.

[0018] Appendix Figure 2 This is a schematic diagram of the cross-sectional structure of the crusher;

[0019] Appendix Figure 3 This is a top view of the crusher;

[0020] Appendix Figure 4 This is a schematic diagram of the rotor structure of a crusher;

[0021] Appendix Figure 5 This is a schematic diagram of the fixed blade structure of a crusher;

[0022] Appendix Figure 6 This is a schematic diagram of the structure of the shredder's motor blades;

[0023] Appendix Figure 7 This is a schematic diagram of the structure of the shredder's motorized blade assembly and stationary blade assembly.

[0024] Diagram: 1. Support frame, 2. Upper housing, 3. Lower housing, 4. Dust outlet, 5. First motor, 6. Rotor I, 7. Second motor, 8. Rotor II, 9. Belt, 10. Feed inlet, 11. Discharge outlet, 12. Moving blade assembly, 13. Fixed blade assembly;

[0025] 12-1 Tool holder, 12-2 Curved knife, 12-3 Nut, 12-4 Bolt;

[0026] 13-1 Fixed blade fixing plate, 13-2 Fixed blade. Detailed Implementation

[0027] like Figures 1-7 As shown, the biomass straw crusher includes a support frame 1, an upper shell 2, a lower shell 3, a dust discharge port 4, a first motor 5, a rotor I 6, a second motor 7, a rotor II 8, a belt 9, a feed inlet 10, a discharge outlet 11, a moving blade assembly 12, and a fixed blade assembly 13.

[0028] The moving blade assembly 12 consists of a blade holder 12-1, a curved blade 12-2, a nut 12-3, and a bolt 12-4; the fixed blade assembly 13 includes a fixed blade fixing plate 13-1 and a fixed blade 13-2.

[0029] Preferably, there are two curved blades and two fixed blades;

[0030] The support frame 1 is a metal frame, and the upper shell 2, lower shell 3, first motor 5, second motor 7, etc. are placed on the support frame 1. The support frame 1 is at a certain height from the ground.

[0031] The upper shell 2 is a trapezoidal box, and a dust discharging port 4 is formed on the upper surface of the trapezoidal box for discharging the dust generated in the process of crushing the straw.

[0032] The lower shell 3 is a rectangular box, and a feeding port 10 is arranged on the upper surface of the lower shell 3. The rotor I 6 and the rotor II 8 are arranged in the lower shell 3. The first motor 5 and the second motor 7 are arranged on the two sides of the lower shell 3 respectively. The first motor 5 is connected with the rotor I 6 through a belt 9, and the second motor 7 is connected with the rotor II 8 through a belt 9. The movable cutter group 12 is arranged on the rotor I 6 and the rotor II 8. The fixed cutter plate 13-1 is arranged between the rotor I 6 and the rotor II 8. The fixed cutter blade 13-2 is arranged on the fixed cutter plate 13-1.

[0033] The discharging port 11 is arranged on the bottom of the lower shell 3 along the length direction of the rotor. The crushed straw is directly discharged from the discharging port 11 out of the lower shell 3.

[0034] Preferably, the discharging port is arranged in a rectangular shape.

[0035] As shown in Figure 1 , Figure 4 , Figure 7 , the two curved cutters 12-2 of the movable cutter group 12 arranged on the rotor I 6 and the rotor II 8 are Y-shaped. The movable cutter group is distributed on the rotor. The two curved cutters 12-2 are Y-shaped, and are fixed on the cutter holder 12-1 through the bolt 12-4 and the nut 12-3. The curved cutters 12-2 can rotate on the shaft of the bolt 12-4 of the cutter holder 12-1. The cutter holder 12-1 is fixed on the rotor I 6 and the rotor II 8. The movable cutter group 12 is distributed in a spiral shape on the rotor I 6 and the rotor II 8, and has a gap with the cutter blade 13-2 of the fixed cutter group 13. Under the joint action of the curved cutter 12-2 and the fixed cutter blade 13-2, the straw is crushed and cut.

[0036] As shown in Figure 5 , the fixed cutter blade 13-2 is a triangular blade. Two triangular blades are cross-welded on the fixed cutter plate 13-1.

[0037] As shown in Figure 7 , the length of the fixed cutter plate 13-1 is the same as the length of the rotor I 6 and the rotor II 8.

[0038] In order to realize the crushing work of a large amount of straw, the diameter of the motor driving wheel of the crusher can be set to 320-370mm, the diameter of the fine crusher rotor is 800-900mm, the motor rotation speed is 1100-1500r / m, the fine crusher rotor rotation speed is 900-1300r / m, and the fine crusher rotor working line speed is 40-60m / s.

[0039] The straw pulverizer is characterized in that: when working, loose straw is firstly put into the lower shell 3 from the feeding port 10, the first motor 5 and the second motor 7 are turned on, the rotors I 6 and II 8 are oppositely rotated to pulverize the straw, and the pulverized straw is discharged from the discharging port 11. The straw pulverizer can pulverize the straw with a length of 3-10 cm, has a high qualified rate, can pulverize 5-10 tons of straw per hour, has high efficiency, the bending knives and the fixed blades of the moving knives are made of high wear-resistant materials and have long service life, the moving knives and the fixed knives are combined, the pulverizing capacity is high, the structure is compact, the straw pulverizer is convenient to disassemble and assemble, easy to operate, convenient and fast to move and carry, and easy to maintain and repair. The rotors have high rotating speed, good pulverizing effect, high working efficiency and wide application range of straw types, the moving knives are arranged in a spiral shape, have large rotary diameter and large impact force, are cross arranged with the fixed blades, have good pulverizing effect, and the number of the knives is large, so that the pulverizing capacity is high.

Claims

1. A biomass straw crusher, characterized in that: It includes a support frame, upper housing, lower housing, dust discharge port, first motor, rotor I, second motor, rotor II, belt, feed inlet, discharge outlet, moving blade assembly, and fixed blade assembly; The moving blade assembly consists of a blade holder, two curved blades, a nut, and bolts; the fixed blade assembly includes a fixed blade fixing plate and two fixed blades. The support is a metal frame, with the upper housing, lower housing, first motor, and second motor placed on the support, which is at a certain height above the ground. The upper shell is a trapezoidal cone-shaped box, with a dust exhaust port on the top and the bottom of the trapezoidal cone-shaped box placed on the lower shell; The lower housing is a rectangular box with a feed inlet on the top. Rotor I and rotor II are installed inside the lower housing. The first motor and the second motor are respectively installed on both sides of the lower housing. The first motor is connected to rotor I via a belt, and the second motor is connected to rotor II via a belt. Moving blade assembly is installed on rotor I and rotor II. Fixed blade fixing plate is installed between rotor I and rotor II. Fixed blade is installed on the fixed blade fixing plate. A discharge port is provided at the bottom of the lower housing along the length of the rotor; The two curved blades of the moving blade assembly on rotor I and rotor II are Y-shaped and fixed to the blade holder by bolts and nuts. They can rotate on the bolt shaft of the blade holder, which is fixed to the rotor. The moving blade assembly is spirally distributed on the rotor and there is a gap between it and the blade of the fixed blade. The fixed blade is a triangular blade, and two triangular blades are welded to the fixed blade fixing plate at an intersection.

2. The biomass straw crusher according to claim 1, characterized in that: The discharge port is designed to be rectangular.

3. The biomass straw crusher according to claim 1, characterized in that: The length of the fixed blade fixing plate is the same as the length of rotor I and rotor II.

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