Crop straw recycling and crushing device for biomass particle production

Abstract

The utility model provides a crop straw recycling and crushing device for biomass particle production, and relates to the technical field of crop crushing, the crop straw recycling and crushing device comprises a conveying mechanism and a crushing mechanism, the conveying mechanism is arranged on the periphery of the crushing mechanism, the top of the conveying mechanism is arranged above the crushing mechanism, and the top of the crushing mechanism is arranged below the conveying mechanism. The conveying mechanism comprises a conveying belt, and a cutting-off assembly used for slitting is arranged on the conveying belt. The crushing mechanism comprises a working box, crushing rollers are arranged in the working box side by side, crushing cutters are arranged on the circular walls of the crushing rollers, crushing teeth are further arranged on the inner wall of the working box, and the crushing teeth correspond to the crushing rollers so that the crushing teeth can be meshed with the crushing cutters. The conveying mechanism and the crushing mechanism are arranged, the cutting-off assembly is arranged on the conveying mechanism, long straw is cut off through the cutting-off assembly to form short straw, the short straw is conveyed into the crushing mechanism through the conveying belt to be crushed, and therefore the probability that the long straw is wound on a crushing cutter is reduced, and the crushing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crop crushing, in particular to a crop straw recovery and crushing device for biomass particle production. Background Art

[0002] Straw is a general term for the stems and leaves of mature crops, usually referring to the remaining parts of wheat, rice, corn, potatoes, rapeseed, cotton, sugarcane and other crops after the seeds are harvested. If this remaining part is left in the farmland, it will affect the next round of farming. At present, most of the treatment of straw is to burn it. However, burning will waste the value of straw. In addition, the smoke produced by burning will cause greater air pollution, which is not conducive to environmental protection.

[0003] In addition, straw is made into crop debris to make organic fertilizer, paper, biomass pellets, etc. to improve the utilization rate of straw. In the process of turning waste into treasure, it needs to be crushed. The existing crushing device mainly crushes by a roller with a knife. However, the straw is often long and has many waste leaves on it. During the crushing process, the straw will be entangled on the blade, thereby affecting the normal function, and at the same time the crushing efficiency is low. Utility Model Content

[0004] The utility model aims to provide a crop straw recovery and crushing device for biomass pellet production, so as to achieve the technical effect of reducing equipment failure rate and improving crushing efficiency.

[0005] The utility model is realized by the following technical scheme: comprising a conveying mechanism and a crushing mechanism, wherein the conveying mechanism is arranged around the crushing mechanism, the top of the conveying mechanism is arranged above the crushing mechanism, the conveying mechanism comprises a conveyor belt, and a cutting assembly for slitting is arranged on the conveyor belt;

[0006] The crushing mechanism comprises a working box, in which crushing rollers are arranged side by side, crushing knives are arranged on the circular walls of the crushing rollers, and crushing teeth are also arranged on the inner wall of the working box, and the crushing teeth correspond to the crushing rollers so that the crushing teeth can mesh with the crushing knives.

[0007] In order to better realize the utility model, further, a filter screen capable of vibrating up and down is arranged at the bottom of the crushing roller, a plurality of sieve holes are arranged on the filter screen, the filter screen is pointed, and the pointed part is arranged at the bottom between the two crushing rollers, a material receiving shell is arranged on the side wall of the working box, a discharge port is opened on the working box, the discharge port is arranged corresponding to the material receiving shell, and the free end of the filter screen is arranged on the discharge port.

[0008] In order to better realize the utility model, further, the filter screen includes two inclined plates, the two inclined plates are symmetrically installed, the free ends of the inclined plates are provided with cross plates, U-shaped fasteners are provided at both ends of the discharge port, the ends of the cross plates can be inserted into the fasteners, and a connecting plate is also provided between the two inclined plates, a linkage motor is provided at the bottom of the connecting plate, a telescopic threaded rod is provided on the transmission shaft of the linkage motor, and the threaded rod is fixedly connected to the connecting plate to enable the filter screen to move up and down.

[0009] In order to better realize the utility model, further, a scraper is arranged in the material receiving shell, and the scraper can move in the material receiving shell to concentrate the material at one end of the material receiving shell or at both ends of the material receiving shell, and a discharge port is arranged at the bottom of one end of the material receiving shell or at both ends of the material receiving shell, and a collection box is arranged at the bottom of the discharge port.

[0010] In order to better realize the utility model, further, a guide plate is provided inside the working box, the guide plate is provided between the crushing teeth and the inclined plate, and the guide plate is installed at 45 degrees.

[0011] In order to better realize the utility model, further, the cutting assembly includes a column frame arranged on both sides of the conveyor belt, a driving cylinder is arranged on the top of the column frame, and a cutting knife is arranged at the telescopic end of the driving cylinder.

[0012] In order to better realize the utility model, further, it also includes an intermittent component arranged behind the cutting component, the intermittent component includes vertical frames arranged on both sides of the conveyor belt, rollers are also arranged between the vertical frames, a plurality of partition plates are arranged on the rollers, a driving motor is arranged on one side of the vertical frame, the driving motor is connected to the rollers in a transmission manner, and a sleeve rod is also arranged downward on the top of the vertical frame, and the sleeve rod is sleeved on both ends of the rollers to fix the rollers.

[0013] The beneficial effects of the utility model are:

[0014] The utility model provides a conveying mechanism and a crushing mechanism, and a cutting component is provided on the conveying mechanism. The long straws are cut by the cutting component to form short straws, and the short straws are conveyed to the crushing mechanism for crushing by a conveyor belt, thereby reducing the probability of the long straws being entangled on the crushing knife and further improving the crushing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the present invention. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A side view of a crop straw recycling and crushing device for biomass pellet production provided by the utility model;

[0017] Figure 2 A top view of a crop straw recycling and crushing device for biomass pellet production provided by the utility model;

[0018] Figure 3 A schematic diagram of the structure of the cutting assembly provided by the utility model;

[0019] Figure 4 A schematic diagram of the structure of the discontinuous assembly provided by the utility model;

[0020] Figure 5 A schematic diagram of the structure of the crushing mechanism provided by the utility model;

[0021] Figure 6 A schematic diagram of the structure of the filter screen provided by the utility model;

[0022] Figure 7 The utility model provides a structural schematic diagram of the material receiving shell.

[0023] icon:

[0024] 100- conveying mechanism, 110- conveyor belt, 120- cutting assembly, 121- column frame, 122- driving cylinder, 123- cutting knife, 130- intermittent assembly, 131- roller, 132- partition, 133- driving motor, 134- sleeve rod, 135- frame, 200- crushing mechanism, 210- working box, 211- crushing teeth, 212- material outlet, 213- fastener, 214- guide plate, 220- crushing roller, 230- filter screen, 231- inclined plate, 232- horizontal plate, 233- connecting plate, 234- linkage motor, 235- telescopic threaded rod, 240- receiving shell, 241- scraper. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be described below in conjunction with the accompanying drawings of the present invention.

[0026] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present utility model, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0027] Please see Figures 1 to 7 ,

[0028] The utility model provides a crop straw recovery and crushing device for biomass pellet production. In the prior art, the crushing device mainly crushes by a roller with a knife. However, the straw is often long and has many waste leaves on it, which will entangle the blades during the crushing process, thereby affecting the normal function. At the same time, the crushing efficiency is low. In order to solve the above technical problems, the utility model optimizes the structure of the crushing device to reduce the equipment failure rate and improve the crushing efficiency.

[0029] The structure of the utility model includes a conveying mechanism 100 and a crushing mechanism 200. As shown in the figure, the conveying mechanism 100 is arranged around the crushing mechanism 200. As can be seen from the figure, there are four conveying mechanisms 100, which can convey straw to the crushing mechanism 200 from multiple directions at the same time, thereby improving the efficiency of conveying straw. The structures of the conveying structure and the crushing mechanism 200 are now described in detail.

[0030] The conveying mechanism 100 includes a conveyor belt 110, which is specifically divided into a parallel conveyor belt 110 and an oblique conveyor belt 110. As shown in the figure, a cutting component 120 for slitting and an intermittent component 130 for segmented conveying are arranged on the parallel conveyor belt 110. The original long straw is cut by the cutting component 120 to reduce the probability of entanglement with the crushing teeth 211 during the crushing process. The cutting component 120 includes a column frame 121 arranged on both sides of the parallel conveyor belt 110, and a driving cylinder 122 is arranged on the top of the column frame 121. The telescopic end of the driving cylinder 122 is fixedly connected to a cutting knife 123. In the process of conveying the straw from the parallel conveyor belt 110, the cutting knife 123 continuously moves up and down. When moving downward, it can cut the straw being conveyed to make it short straw.

[0031] The intermittent assembly 130 is arranged behind the cutting assembly 120 structure. The intermittent assembly 130 is used to intermittently convey the short straw to the crushing mechanism 200. The intermittent assembly 130 also includes a stand 135 arranged on both sides of the conveyor belt 110, which has the same structure as the column frame 121 of the cutting assembly 120. A roller 131 is arranged between the stand 135, and a plurality of partition plates are arranged on the roller. There are 4 partition plates, which are evenly arranged on the roller 131. A driving motor 133 is also arranged on one side of the stand 135. The driving motor 133 can be connected with the roller 131 in transmission so that the roller 131 can rotate. During the rotation, the partition plate can press the short straw on the parallel conveyor belt 110 to slow down the conveying rate of the short-circuit rod, thereby controlling the conveying rate of the short-circuit rod to the crushing mechanism 200. In order to better fix the roller 131, a downward sleeve rod 134 is also provided on the top of the stand 135. The sleeve rod 134 is sleeved on both ends of the roller 131. The sleeve is a movable sleeve and does not affect the rotation of the roller 131.

[0032] Under the action of the cutting component 120 and the interrupting component 130, the conveying mechanism 100 can cut longer straws into short straws, thereby reducing the probability of straws being entangled with the crushing blade. The interrupting component 130 enables the conveying rate to the crushing mechanism 200 to be controlled to avoid too much material accumulation affecting the crushing effect.

[0033] The crushing mechanism 200 includes a working box 210, which has a cube structure. A crushing roller 220 is arranged in the middle of the working box 210, and a guide plate is arranged above the crushing roller 220. There are four guide plates, which are respectively installed on the top of the inner wall of the working box 210 to form a funnel-like structure. Under the action of the guide plate, short straws transported from all directions are transported into the crushing roller 220 for crushing.

[0034] There are two crushing rollers 220, which are arranged side by side. After the short straw falls, the two crushing rollers 220 act on each other to crush it. Specifically, a crushing knife is arranged on the round wall of the crushing roller 220, so that it can continuously shear and cut the short connecting rod to form more finely crushed straw materials. In order to avoid the gap between the crushing roller 220 and the working box 210 and avoid incomplete crushing of the straw to achieve the purpose of more comprehensive crushing, crushing teeth 211 are also arranged on the inner wall of the working box 210. The crushing teeth 211 mesh with the crushing knife to crush the straw falling into the inner wall of the working box 210.

[0035] The crushing roller 220 can be set to crush most of the short straws into smaller pieces. In order to achieve relatively uniform crushing, a filter screen 230 that can vibrate up and down is set at the bottom of the crushing roller 220. The filter screen 230 is provided with a plurality of sieve holes. Through the screening of the sieve holes, it can achieve uniform uniformity. The filter screen 230 is pointed. As shown in the figure, the pointed corner of the filter screen 230 is set at the bottom between the two crushing rollers 220. Specifically, the filter screen 230 includes Two inclined plates 231 are symmetrically installed, and sieve holes are set on the inclined plates 231. A horizontal cross plate 232 is set at the free end of the inclined plates 231. A connecting plate 233 is also set near the top of the two inclined plates 231. A linkage motor 234 is set at the bottom of the connecting plate 233. A telescopic threaded rod 235 is set on the transmission shaft of the linkage motor 234. The telescopic threaded rod 235 is fixedly connected to the connecting plate 233. Under the action of the linkage motor 234, the filter screen 230 can be driven to move up and down.

[0036] A discharge port 212 is provided on the working box 210, and U-shaped fasteners 213 are provided at both ends of the discharge port 212. The end of the cross plate 232 is inserted into the fastener 213 so that the linkage motor 234 drives the filter screen 230 so that it will not separate from the discharge port 212. Under the action of the linkage motor 234, less straw material will be filtered through the sieve holes and fall to the bottom of the working box 210, while the straw material that does not pass through the sieve holes will move toward the cross plate 232 and the discharge port 212 during the up and down vibration process. At the corresponding position of the discharge port 212, a material receiving shell 240 is provided on the outer wall of the working box 210 to collect the straw material that does not pass through the sieve holes.

[0037] Since the discharge port 212 is in the shape of an elongated strip, the receiving shell 240 is also in the shape of an elongated strip. In order to facilitate the collection and transfer of straw materials, a scraper 241 is provided in the receiving shell 240. The scraper 241 can move in the receiving shell 240 to concentrate the materials at one end of the receiving shell 240, or at both ends, and a discharge port is provided at the bottom of one end of the receiving shell 240 or at the bottom of both ends of the receiving shell 240, and a collection box is provided at the bottom of the discharge port. The movement of the scraper 241 can be manual or transmission. When it is manually moved, slide rails are provided on both sides of the top of the receiving shell 240, and a slide bar is provided at the top. The two ends of the scraper 241 can be slidably installed in the slide rails, and a handle is provided on the top of the scraper 241, and the handle can extend out of the slide bar.

[0038] In order to prevent the straw material falling between the inner wall of the working box 210 and the crushing roller 220 from falling directly onto the cross plate 232, a guide plate 214 is provided above the filter screen 230 and below the crushing teeth 211. The guide plate 214 also has a function of preventing the filter screen 230 from moving upward a large distance, thereby playing a certain limiting role.

[0039] Workflow:

[0040] 1. The long straws are cut into short straws by the cutting blade 123 of the cutting assembly 120 of the conveying mechanism 100, and the conveying rate of the short connecting rod to the crushing mechanism 200 is limited by the partition plate of the interruption assembly 130, so as to avoid a large number of short straws being concentrated in the working box 210 and affecting the crushing efficiency;

[0041] 2. The short straws are crushed by the crushing roller 220, and the crushed fine straws will fall on the filter screen 230. Under the action of the linkage motor 234, the filter screen 230 can vibrate up and down to filter the mechanical energy of the crushed straws. Since the cross plate 232 extends outward from the fastener 213 and does not separate from the fastener 213 when moving up and down, the larger straws will move toward the cross plate 232 under the action of the inclined plate 231 and gradually fall into the receiving shell 240. When the amount in the receiving shell 240 is large, it is transferred to the collecting boxes at both ends of the receiving shell 240 through the scraper 241, and then can return to the crushing mechanism 200.

[0042] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A crop straw recycling and crushing device for biomass pellet production, characterized in that: The invention comprises a conveying mechanism (100) and a crushing mechanism (200), wherein the conveying mechanism (100) is arranged around the crushing mechanism (200), and the top of the conveying mechanism (100) is arranged above the crushing mechanism (200). The conveying mechanism (100) comprises a conveying belt (110), and a cutting assembly (120) for slitting is arranged on the conveying belt (110); The crushing mechanism (200) comprises a working box (210), wherein crushing rollers (220) are arranged side by side in the working box (210) so as to crush the straw, and crushing knives are arranged on the circular walls of the crushing rollers (220), and crushing teeth (211) are also arranged on the inner wall of the working box (210), and the crushing teeth (211) correspond to the crushing rollers (220) so that the crushing teeth (211) can mesh with the crushing knives.

2. The crop straw recycling and crushing device for biomass pellet production according to claim 1 is characterized in that: A filter screen (230) capable of vibrating up and down is arranged at the bottom of the crushing roller (220), and a plurality of screen holes are arranged on the filter screen (230). The filter screen (230) is pointed, and the pointed part is arranged at the bottom between the two crushing rollers (220). A material receiving shell (240) is arranged on the side wall of the working box (210), and a discharge port (212) is opened on the working box (210). The discharge port (212) and the material receiving shell (240) are arranged correspondingly, and the free end of the filter screen (230) is arranged on the discharge port (212).

3. The crop straw recycling and crushing device for biomass pellet production according to claim 2 is characterized in that: The filter screen (230) comprises two inclined plates (231), the two inclined plates (231) are symmetrically installed, a transverse plate (232) is provided at the free end of the inclined plate (231), U-shaped fasteners (213) are provided at both ends of the discharge port (212), the ends of the transverse plate (232) can be inserted into the fasteners (213), a connecting plate (233) is also provided between the two inclined plates (231), a linkage motor (234) is provided at the bottom of the connecting plate (233), a telescopic threaded rod (235) is provided on the transmission shaft of the linkage motor (234), and the threaded rod is fixedly connected to the connecting plate (233) so that the filter screen (230) can move up and down.

4. The crop straw recycling and crushing device for biomass pellet production according to claim 2, characterized in that: A scraper (241) is arranged in the material receiving shell (240), and the scraper (241) can move in the material receiving shell (240) so as to collect materials at one end of the material receiving shell (240) or at both ends of the material receiving shell (240). A discharge port is arranged at the bottom of one end of the material receiving shell (240) or at both ends of the material receiving shell (240), and a material collecting box is arranged at the bottom of the discharge port.

5. The crop straw recycling and crushing device for biomass pellet production according to claim 3 is characterized in that: A guide plate (214) is also provided inside the working box (210). The guide plate (214) is provided between the crushing teeth (211) and the inclined plate (231). The guide plate (214) is installed at a 45° angle.

6. The crop straw recycling and crushing device for biomass pellet production according to any one of claims 1 to 5, characterized in that: The cutting assembly (120) comprises a column frame (121) arranged on both sides of the conveyor belt (110), a driving cylinder (122) is arranged on the top of the column frame (121), and a cutting knife (123) is arranged at the telescopic end of the driving cylinder (122).

7. The crop straw recycling and crushing device for biomass pellet production according to claim 6, characterized in that: The invention also comprises an intermittent assembly (130) arranged behind the cutting assembly (120), the intermittent assembly (130) comprising vertical frames (135) arranged on both sides of the conveyor belt (110), a roller (131) being arranged between the vertical frames (135), a plurality of partition plates being arranged on the roller (131), a driving motor (133) being arranged on one side of the vertical frame (135), the driving motor (133) being transmission-connected to the roller (131), a sleeve rod (134) being arranged downward on the top of the vertical frame (135), the sleeve rod (134) being sleeved on both ends of the roller (131) so as to fix the roller (131).

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