Raw material crushing device for crop straw biomass fuel production

Abstract

The utility model discloses a raw material crushing device for crop straw biomass fuel production, which comprises a crushing box, the upper end of the crushing box is fixedly connected with a slitting box, the upper end of the slitting box is fixedly connected with a feeding hopper, the feeding hopper is provided with a screening driving mechanism, the screening driving mechanism is provided with a screening tray, and the screening tray is provided with a feeding hopper. A cutting-off mechanism is arranged in the slitting box, the inner wall of the smashing box is rotationally connected with a smashing rotating shaft, smashing cutters are evenly distributed on the smashing rotating shaft, the bottom of the smashing box is rotationally connected with a sealing door plate, and the screening driving mechanism comprises a guide rod, a sliding block, a cushioning spring, a connecting rod and a driving rod. The cut-off mechanism comprises a feeding rotating shaft, a conveying roller, a cutting rotating shaft, a slitting blade, a slitting motor and a conveying motor. The utility model belongs to the technical field of straw processing, and particularly relates to a raw material crushing device for crop straw biomass fuel production.

Description

Technical Field

[0001] The utility model belongs to the technical field of straw processing, in particular to a raw material crushing device for producing crop straw biomass fuel. Background Art

[0002] Biomass fuel refers to the burning of biomass materials as fuel, which is generally mainly agricultural and forestry waste. The most common material is straw. As agricultural waste, using straw for biomass fuel can not only make use of waste and improve the economy of crops, but also reduce costs and reduce pollution caused by other treatment methods. When processing straw for biomass fuel, the straw needs to be crushed. Existing raw material crushing devices for the production of crop straw biomass fuel, such as a raw material crushing device for the production of crop straw biomass fuel disclosed in application number CN211831990U, use jetting and scraping methods to prevent material debris from adhering to the inner wall of the circular crushing box to form accumulation, thereby improving the crushing effect.

[0003] However, in actual production, the collected straw will inevitably be mixed with other debris, such as stones, which will easily cause damage to the equipment if it directly enters the crushing device. In addition, due to the different lengths of the straws, in order to ensure the crushing effect, the required crushing time is relatively long, which affects the production efficiency. In particular, due to the longer straws' greater toughness, they are prone to bend when cut, making it difficult to crush them thoroughly. In addition, the straws are mixed and disordered when added, which further increases the required crushing time. For this reason, we propose a raw material crushing device for the production of crop straw biomass fuel to solve the above problems. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a raw material crushing device for the production of crop straw biomass fuel, which effectively solves the problem that foreign matter such as stones mixed in the existing crop straw during collection can easily cause internal damage to the crushing device, and solves the problem that the straw is messy and of different lengths after being added, resulting in long crushing time and low efficiency.

[0005] The technical solution adopted by the utility model is as follows: The utility model proposes a raw material crushing device for the production of crop straw biomass fuel, including a crushing box, the upper end of the crushing box is fixedly connected to a cutting box, the upper end of the cutting box is fixedly connected to a feeding hopper, the feeding hopper is provided with a screening drive mechanism, the screening drive mechanism is provided with a sieve plate, and the sieve plate is arranged in the feeding hopper, the cutting box is provided with a cutting mechanism, a crushing shaft is rotatably connected to the inner wall of the crushing box, crushing cutters are evenly distributed on the crushing shaft, and the bottom of the crushing box is rotatably connected to a closed door panel.

[0006] As an improvement of the present scheme, the screening drive mechanism includes a guide rod, a slider, a shock-absorbing spring, a connecting rod and a driving rod, the guide rod being vertically arranged at the bottom of the feeding hopper, the slider being arranged on the side wall of the sieve plate and being slidably connected to the guide rod, one end of the shock-absorbing spring being arranged at the bottom of the feeding hopper, the other end of the shock-absorbing spring being arranged at the bottom of the slider and being arranged around the guide rod, the connecting rod being rotatably connected to the middle of the side wall of the sieve plate, and the driving rod being rotatably connected to the connecting rod.

[0007] As an improvement of the present scheme, the cutting mechanism includes a feeding shaft, a conveying roller, a cutting shaft, a slitting blade, a slitting motor and a conveying motor. The feeding shaft is rotatably connected to the inner wall of the slitting box, the conveying rollers are evenly distributed on the feeding shaft, the cutting shaft is rotatably connected to the inner wall of the slitting box and is arranged below the feeding shaft, the slitting blades are evenly distributed on the cutting shaft, the slitting motor is arranged on the side wall of the slitting box and the output shaft passes through the slitting box and is connected to the cutting shaft, and the conveying motor is arranged on the side wall of the slitting box and the output shaft passes through the slitting box and is connected to the feeding shaft.

[0008] As an improvement of this solution, a bracket is provided on the side wall of the crushing box, a reduction motor is provided on the bracket, the output shaft of the reduction motor passes through the bracket and the crushing box and is connected to the crushing shaft, a gearbox is provided on the side wall of the feeding hopper and is connected to the driving rod, and a vibration motor is provided on the gearbox.

[0009] As an improvement of this solution, a collecting hopper is fixedly connected to the bottom of the sieve plate, a support plate is fixedly connected to the bottom of the crushing box, guide plates are provided on the inner walls on both sides of the feeding hopper, and the guide plates are arranged above the sieve plate.

[0010] As an improvement of this solution, the conveying rollers and slitting blades are arranged at intervals, the collecting hopper is arranged between the conveying rollers and the sieve plate, the cutting shaft and the feeding shaft are arranged parallel to the sieve plate, and the guide rod is arranged perpendicular to the sieve plate.

[0011] As an improvement of the present solution, a plurality of transverse stainless steel wires are evenly distributed on the inner wall of the sieve plate, and the upper end of the slitting blade is arranged in the gap between two adjacent groups of conveying rollers.

[0012] As an improvement of the present solution, the surface of the conveying roller is evenly distributed with a plurality of transverse grooves along the circumferential direction.

[0013] The beneficial effects achieved by the utility model using the above structure are as follows:

[0014] 1. It is equipped with a sieve plate, and the added straw raw material can be filtered by the screening drive mechanism, which can not only filter out impurities such as stones and protect the inside of the crushing device, but also adjust the position of the straw after feeding, so that the straw is neatly discharged in the same direction, thereby improving the efficiency of subsequent crushing processing;

[0015] 2. The cutting mechanism can divide neatly stacked straw into shorter sections, which is convenient for subsequent crushing and avoids the problem that long straw is too tough and easy to bend and cannot be cut during cutting. It not only improves the uniformity of crushed size, but also further improves the efficiency of crushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a raw material crushing device for producing crop straw biomass fuel proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a raw material crushing device for producing crop straw biomass fuel proposed by the utility model;

[0018] Figure 3 for Figure 2 A partial enlarged schematic diagram of part A;

[0019] Figure 4 This is a cross-sectional view of a raw material crushing device for producing crop straw biomass fuel proposed by the utility model.

[0020] Among them, 1. crushing box, 2. slitting box, 3. feeding hopper, 4. screening drive mechanism, 5. sieve plate, 6. cutting mechanism, 7. crushing shaft, 8. crushing tool, 9. closing door panel, 10. guide rod, 11. slider, 12. shock-absorbing spring, 13. connecting rod, 14. driving rod, 15. feeding shaft, 16. conveying roller, 17. cutting shaft, 18. slitting blade, 19. slitting motor, 20. conveying motor, 21. bracket, 22. reduction motor, 23. gearbox, 24. vibration motor, 25. collecting hopper, 26. support plate, 27. guide plate.

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the utility model proposes a raw material crushing device for the production of crop straw biomass fuel, comprising a crushing box 1, the upper end of the crushing box 1 is fixedly connected to a cutting box 2, the upper end of the cutting box 2 is fixedly connected to a feeding hopper 3, a screening drive mechanism 4 is provided on the feeding hopper 3, a sieve plate 5 is provided on the screening drive mechanism 4, and the sieve plate 5 is arranged in the feeding hopper 3, a cutting mechanism 6 is provided in the cutting box 2, a crushing shaft 7 is rotatably connected to the inner wall of the crushing box 1, crushing cutters 8 are evenly distributed on the crushing shaft 7, and a closed door panel 9 is rotatably connected to the bottom of the crushing box 1.

[0024] In order to achieve screening, filtering and sorting of straw, the screening drive mechanism 4 includes a guide rod 10, a slider 11, a shock-absorbing spring 12, a connecting rod 13 and a driving rod 14. The guide rod 10 is vertically arranged at the bottom of the hopper 3, the slider 11 is arranged on the side wall of the sieve plate 5 and is slidably connected to the guide rod 10, one end of the shock-absorbing spring 12 is arranged at the bottom of the hopper 3, and the other end of the shock-absorbing spring 12 is arranged at the bottom of the slider 11 and is arranged around the guide rod 10, the connecting rod 13 is rotatably connected to the middle of the side wall of the sieve plate 5, and the driving rod 14 is rotatably connected to the connecting rod 13.

[0025] In order to cut the straw and facilitate subsequent crushing processing, the cutting mechanism 6 includes a feeding shaft 15, a conveying roller 16, a cutting shaft 17, a slitting blade 18, a slitting motor 19 and a conveying motor 20. The feeding shaft 15 is rotatably connected to the inner wall of the slitting box 2, the conveying roller 16 is evenly distributed on the feeding shaft 15, the cutting shaft 17 is rotatably connected to the inner wall of the slitting box 2 and is arranged below the feeding shaft 15, the slitting blades 18 are evenly distributed on the cutting shaft 17, the slitting motor 19 is arranged on the side wall of the slitting box 2 and the output shaft passes through the slitting box 2 and is connected to the cutting shaft 17, and the conveying motor 20 is arranged on the side wall of the slitting box 2 and the output shaft passes through the slitting box 2 and is connected to the feeding shaft 15.

[0026] A bracket 21 is provided on the side wall of the crushing box 1, and a reduction motor 22 is provided on the bracket 21. The output shaft of the reduction motor 22 passes through the bracket 21 and the crushing box 1 and is connected to the crushing shaft 7. A gearbox 23 is provided on the side wall of the feeding hopper 3 and is connected to the driving rod 14. A vibration motor 24 is provided on the gearbox 23; a collecting hopper 25 is fixedly connected to the bottom of the sieve plate 5, and a support plate 26 is fixedly connected to the bottom of the crushing box 1. Guide plates 27 are provided on the inner walls on both sides of the feeding hopper 3, and the guide plates 27 are arranged above the sieve plate 5.

[0027] The conveying rollers 16 and the slitting blades 18 are arranged at intervals, the collecting hopper 25 is arranged between the conveying rollers 16 and the sieve plate 5, the cutting shaft 17 and the feeding shaft 15 are arranged parallel to the sieve plate 5, and the guide rod 10 is arranged perpendicular to the sieve plate 5; a plurality of transverse stainless steel wires are evenly distributed on the inner wall of the sieve plate 5, and the upper end of the slitting blade 18 is arranged in the gap between two adjacent groups of conveying rollers 16; a plurality of transverse grooves are evenly distributed on the surface of the conveying roller 16 along the circumferential direction.

[0028] When in use, straw is added through the upper end of the feeding hopper 3, the vibration motor 24 is turned on to drive the driving rod 14 to rotate through the gearbox 23, and the connecting rod 13 rotatably connected to the driving rod 14 drives the sieve plate 5 to make regular reciprocating motion along the direction of the guide rod 10 under the action of the slider 11, so that the straw that passes through the guide plate 27 and falls to the upper end of the sieve plate 5 is vibrated, and the larger stones are filtered by the sieve plate 5, while the slender straw is parallel to the sieve plate 5 and falls into the collecting hopper 25 through the sieve plate 5, and then falls downward to the surface of the conveying roller 16, and the sieve plate 5 is turned on. Two sets of conveying motors 20 make the two sets of conveying rollers 16 rotate relative to each other, so that the grooves on their surfaces convey the straw at the upper end downward. At the same time, the slitting motor 19 is turned on to drive the cutting shaft 17 to rotate, so that the slitting blade 18 thereon cuts off the passing straw, and the cut straw passes through the lower end of the slitting box 2 and falls into the crushing box 1. The reduction motor 22 is turned on to drive the crushing shaft 7 to rotate, so that the crushing tool 8 thereon crushes the cut straw. The above is the use process of the raw material crushing device for the production of crop straw biomass fuel.

[0029] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A raw material crushing device for producing crop straw biomass fuel, comprising a crushing box, characterized in that: The upper end of the crushing box is fixedly connected to a slitting box, the upper end of the slitting box is fixedly connected to a feeding hopper, the feeding hopper is provided with a screening drive mechanism, the screening drive mechanism is provided with a sieve plate, and the sieve plate is arranged in the feeding hopper, a cutting mechanism is provided in the slitting box, a crushing shaft is rotatably connected to the inner wall of the crushing box, crushing cutters are evenly distributed on the crushing shaft, and a closed door panel is rotatably connected to the bottom of the crushing box.

2. The raw material crushing device for producing crop straw biomass fuel according to claim 1, characterized in that: The screening drive mechanism includes a guide rod, a slider, a shock-absorbing spring, a connecting rod and a driving rod. The guide rod is vertically arranged at the bottom of the feeding hopper, the slider is arranged on the side wall of the sieve plate and is slidably connected to the guide rod, one end of the shock-absorbing spring is arranged at the bottom of the feeding hopper, and the other end of the shock-absorbing spring is arranged at the bottom of the slider and is arranged around the guide rod, the connecting rod is rotatably connected to the middle of the side wall of the sieve plate, and the driving rod is rotatably connected to the connecting rod.

3. A raw material crushing device for producing crop straw biomass fuel according to claim 2, characterized in that: The cutting mechanism includes a feeding shaft, a conveying roller, a cutting shaft, a slitting blade, a slitting motor and a conveying motor. The feeding shaft is rotatably connected to the inner wall of the slitting box, the conveying rollers are evenly distributed on the feeding shaft, the cutting shaft is rotatably connected to the inner wall of the slitting box and is arranged below the feeding shaft, the slitting blades are evenly distributed on the cutting shaft, the slitting motor is arranged on the side wall of the slitting box and the output shaft passes through the slitting box and is connected to the cutting shaft, the conveying motor is arranged on the side wall of the slitting box and the output shaft passes through the slitting box and is connected to the feeding shaft.

4. The raw material crushing device for producing crop straw biomass fuel according to claim 3, characterized in that: A bracket is provided on the side wall of the crushing box, a reduction motor is provided on the bracket, an output shaft of the reduction motor passes through the bracket and the crushing box and is connected to the crushing shaft, a gearbox is provided on the side wall of the feeding hopper and is connected to the driving rod, and a vibration motor is provided on the gearbox.

5. The raw material crushing device for producing crop straw biomass fuel according to claim 4, characterized in that: The bottom of the sieve plate is fixedly connected with a collecting hopper, the bottom of the crushing box is fixedly connected with a supporting plate, and guide plates are arranged on the inner walls of both sides of the feeding hopper, and the guide plates are arranged above the sieve plate.

6. The raw material crushing device for producing crop straw biomass fuel according to claim 5, characterized in that: The conveying rollers and the slitting blades are arranged at intervals, the collecting hopper is arranged between the conveying rollers and the sieve plate, the cutting shaft and the feeding shaft are arranged parallel to the sieve plate, and the guide rod is arranged perpendicular to the sieve plate.

7. The raw material crushing device for producing crop straw biomass fuel according to claim 6, characterized in that: A plurality of transverse stainless steel wires are evenly distributed on the inner wall of the sieve plate, and the upper end of the slitting blade is arranged in the gap between two adjacent groups of conveying rollers.

8. The raw material crushing device for producing crop straw biomass fuel according to claim 7, characterized in that: The surface of the conveying roller is uniformly provided with a plurality of transverse grooves along the circumferential direction.

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