Grinding equipment for biomass feed production

Abstract

Grinding equipment for biomass feed production relates to the field of biomass feed processing and comprises a feeding mechanism and a grinding mechanism. The grinding mechanism comprises a first grinding assembly and a second grinding assembly, the second grinding assembly is arranged at the discharging end of the first grinding assembly, the feeding end of the first grinding assembly is connected with the feeding mechanism, the first grinding assembly comprises a smashing motor, a smashing groove and an extrusion spiral shaft, and the second grinding assembly comprises a slurry groove, a grinding disc and a grinding disc motor. Firstly, cereal raw materials are cut and smashed through a smashing cutter head, then cereal raw material particles are extruded, and fermentable substances and crude fibers in the cereal raw materials are extruded and separated for the first time; then rotary grinding is carried out through the grinding disc, secondary sufficient grinding is carried out on grain raw material particles, crude fibers and fermentable substances in the grain raw materials are sufficiently separated, sufficient separation of the crude fibers and the fermentable substances in the grain raw materials in the later period is facilitated, and the crude fiber content of the fermented grain raw materials is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of biomass feed processing, and in particular to a grinding device for biomass feed production. Background Art

[0002] As an important industry to meet this demand, animal husbandry has been expanding in scale. High-quality feed is one of the key factors to ensure the healthy and efficient development of animal husbandry. Biomass resources are widely present in nature, including crop straw, forestry waste, forage grass, aquatic plants, etc. In terms of biotechnology, microbial fermentation technology can convert difficult-to-digest substances such as crude cellulose and semi-crude cellulose in biomass into nutrients that are easy for animals to absorb, such as organic acids and bacterial proteins.

[0003] At present, in the production process of grain biomass feed, the grain raw materials need to be crushed first, and then the crushed grain raw materials are fermented. However, the grain raw material crushing only cuts the raw materials into smaller particles, but the crude fiber and fermentable substances in the grain raw materials are not fully separated. Since crude fiber is difficult to ferment, the crude fiber content is still high after fermentation, which affects the quality of the fermented feed. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, the purpose of the present invention is to provide a grinding equipment for biomass feed production, which can fully separate the crude fiber and fermentable substances in the grain raw materials, facilitate the full separation of the crude fiber and fermentable substances in the grain raw materials in the later stage, and reduce the crude fiber content of the grain raw materials after fermentation.

[0006] To achieve the above-mentioned purpose, the present invention proposes a grinding equipment for biomass feed production, including a grinding mechanism, wherein the grinding mechanism includes a first grinding component and a second grinding component, wherein the second grinding component is arranged at the discharge end of the first grinding component, and the first grinding component includes a crushing motor, a crushing trough and an extrusion screw shaft, wherein the top feeding end of the crushing trough is connected to the feeding mechanism, a crushing cutter head is arranged on the inner side of the crushing trough, and the extrusion screw shaft is arranged below the crushing cutter head, and the crushing cutter head and the extrusion screw shaft are both connected to the power shaft of the crushing motor, and a water injection port is arranged on the top of the crushing trough, and the second grinding component includes a slurry trough, a grinding disc and a grinding disc motor, wherein the top feeding end of the slurry trough is connected to the bottom discharge end of the crushing trough, the grinding disc is arranged inside the slurry trough, and the grinding disc is connected to the power shaft of the grinding disc motor.

[0007] Furthermore, the grinding surface of the grinding disc is provided with grinding teeth, and the grinding teeth are distributed in a spiral shape on the grinding surface.

[0008] Furthermore, a centrifugal screening mechanism is provided at the discharge end of the slurry trough, and the centrifugal screening mechanism is used to centrifugally screen the ground material, and the centrifugal screening mechanism includes a centrifugal assembly, a coarse material collection box and a fine material collection box, wherein the centrifugal assembly is arranged inside the fine material collection box, and the centrifugal assembly includes a centrifugal drum, a screen cylinder and a fixed spiral shaft, wherein the centrifugal drum is rotatably arranged inside the fine material collection box, the screen cylinder is arranged on the inner side of the centrifugal drum, and the fixed spiral shaft is arranged on the inner side of the screen cylinder, a coarse material transfer pipe is arranged on the top of the screen cylinder, the top of the fixed spiral shaft is fixedly connected to the coarse material transfer pipe, and the coarse material transfer pipe is connected to the coarse material collection box, the spiral blades of the fixed spiral shaft are a mesh structure, a cleaning brush is arranged at the spiral edge of the fixed spiral shaft, the screen cylinder is a mesh structure, and a first fine material outlet is opened at the bottom of the centrifugal drum.

[0009] Furthermore, a second toothed disc is provided at the edge of the centrifugal drum, a centrifugal drive motor is provided inside the fine material collection box, a second gear head is provided on the power shaft of the centrifugal drive motor, the second gear head and the second toothed disc are meshed with each other, a second fine material outlet is provided at the bottom of the fine material collection box, and the coarse material transfer pipe is rotatably connected to the top of the fine material collection box.

[0010] Furthermore, the slurry tank is a conical structure, and abrasive particles are provided on the inner wall of the slurry tank and the side corresponding to the grinding disc. A slurry transfer pipe is provided between the bottom of the slurry tank and the fine material collection box, and an abrasive transfer pump is provided on the slurry transfer pipe.

[0011] Furthermore, a slurry storage tank is arranged on the top of the slurry tank, a mesh-structured grate cylinder is arranged inside the slurry storage tank, and the extrusion spiral shaft is arranged inside the grate cylinder.

[0012] Furthermore, it also includes a feeding mechanism, which includes a feeding hopper and a cleaning component, wherein the cleaning component is arranged at the bottom discharge end of the feeding hopper, and the cleaning component includes a cleaning cover and a cleaning roller, wherein the cleaning roller is rotatably arranged on the inner side of the cleaning cover, the top of the cleaning cover is connected to the feeding hopper, and the bottom of the cleaning cover is connected to the crushing trough.

[0013] Furthermore, the cleaning drum is a mesh structure, both ends of the cleaning drum are hollowed out, and the diameter of the feed port of the cleaning drum is larger than the diameter of the discharge port. The cleaning drum is placed at an angle, and a cleaning brush made of silicone material is arranged inside. A wastewater discharge groove is arranged at the bottom of the cleaning cover.

[0014] Furthermore, a water inlet is provided at the top of the cleaning cover, and a drum drive unit is provided on the inner side of the cleaning cover, and the drum drive unit includes a first drive motor and a first gear disc, wherein the first gear disc is provided on the outside of the cleaning drum, and the first drive motor is provided on the inner side of the cleaning cover, and a first gear head is provided on the power shaft of the first drive motor, and the first gear head and the first gear disc are meshed with each other.

[0015] Beneficial effects: The present invention first cuts and crushes the grain raw materials through a crushing head to make them into small particles, and then adds water and squeezes the grain raw material particles for the first time through an extrusion spiral shaft, so that the fermentable substances and crude fibers therein are squeezed and separated for the first time to form a grain slurry; then, the grain raw material particles are rotated and ground through a grinding disk to perform a second sufficient grinding on the grain raw material particles, so that the crude fibers and fermentable substances therein are fully centrifugally separated, which facilitates the sufficient separation of the crude fibers and fermentable substances in the grain raw materials in the later stage and reduces the crude fiber content of the grain raw materials after fermentation.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which: Figure 1 A schematic diagram of the structure of a grinding device for biomass feed production according to an embodiment of the present invention; Figure 2 It is a structural schematic diagram of a feeding mechanism in a grinding device for biomass feed production according to one embodiment of the present invention; Figure 3 for Figure 2 A magnified view of middle; Figure 4 A schematic diagram of the structure of a grinding mechanism in a grinding device for biomass feed production according to an embodiment of the present invention; Figure 5 A top cross-sectional view of a second grinding assembly in a grinding device for biomass feed production according to an embodiment of the present invention; Figure 6 The figure is a top view of a fixed screw shaft in a grinding device for biomass feed production according to one embodiment of the present invention.

[0018] As shown in the figure: 1. Feeding mechanism; 11. Feeding hopper; 12. Cleaning assembly; 121. Water inlet; 122. Cleaning cover; 123. Cleaning drum; 124. Cleaning brush; 125. Drum driving unit; 1251. First driving motor; 1252. First gear head; 1253. First toothed disc; 126. Discharge port; 127. Rotating seat; 13. Wastewater discharge trough; 131. Wastewater drainage port; 2. Grinding mechanism; 21. Crushing motor; 22. First grinding assembly; 221. Crushing cutter head; 222. Extrusion screw shaft; 223. Slurry storage tank; 224. Grate water cylinder; 225. Slurry outlet; 23. Second grinding assembly; 231. Slurry tank; 232, grinding disc; 233, grinding disc motor; 234, grinding teeth; 235, guide wheel; 24, grinding material transfer pump; 25, slurry transfer pipe; 26, crushing tank; 27, water injection port; 3, centrifugal screening mechanism; 31, centrifugal assembly; 311, bearing swivel seat; 312, centrifugal drum; 313, screen cylinder; 314, fixed screw shaft; 3141, cleaning brush; 315, first outlet for fine materials; 316, second outlet for fine materials; 317, rotary joint; 318, centrifugal drive motor; 3181, second gear head; 3182, second gear disc; 32, coarse material transfer pipe; 33, coarse material collection box; 34, fine material collection box. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0020] The grinding equipment for biomass feed production according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0021] like Figure 1-Figure 5 As shown, the grinding equipment for biomass feed production provided by an embodiment of the present invention includes a feeding mechanism 1 and a grinding mechanism 2, wherein the feeding mechanism 1 is arranged at the feeding end of the grinding mechanism 2, and the grinding mechanism 2 includes a first grinding component 22 and a second grinding component 23, wherein the second grinding component 23 is arranged at the discharging end of the first grinding component 22, and the feeding end of the first grinding component 22 is connected to the feeding mechanism 1.

[0022] The first grinding assembly 22 includes a crushing motor 21, a crushing trough 26 and an extrusion screw shaft 222, wherein the top feeding end of the crushing trough 26 is connected to the feeding mechanism 1, a crushing cutter head 221 is arranged on the inner side of the crushing trough 26, and the extrusion screw shaft 222 is arranged below the crushing cutter head 221, the crushing cutter head 221 and the extrusion screw shaft 222 are both connected to the power shaft of the crushing motor 21, and a water injection port 27 is arranged on the top of the crushing trough 26.

[0023] The second grinding assembly 23 includes a slurry tank 231, a grinding disc 232 and a grinding disc motor 233, wherein the top feed end of the slurry tank 231 is connected to the bottom discharge end of the crushing tank 26, the grinding disc 232 is arranged inside the slurry tank 231, and the grinding disc 232 is connected to the power shaft of the grinding disc motor 233.

[0024] Specifically, in the process of grinding the grain raw materials, the grain raw materials are first placed in the feeding mechanism 1. During the feeding process, water is added to the crushing tank 26 through the water injection port 27. The grain raw materials enter the first grinding component 22 along the feeding mechanism 1. The grain raw materials first enter the crushing tank 26. In the crushing tank 26, the grain raw materials are first cut and crushed by the crushing cutter head 221 to form small particles. Then, the small particles of grain raw materials sink into the extrusion screw shaft 222 due to gravity. The extrusion screw shaft 222 first performs preliminary extrusion and downward transmission on the small pieces of grain raw materials, so that the crude fiber and fermentable substances in the grain raw materials are squeezed and separated for the first time to form grain slurry.

[0025] The extruded grain slurry is extruded downward and transmitted into the second grinding component 23. The grain slurry is extruded by the extrusion screw shaft 222 and enters the upper surface of the grinding disk 232. The rotating grinding disk 232 performs secondary rotational grinding on the extruded grain slurry to fully separate the crude fiber therein from the fermentable substance. After grinding, the ground crude fiber and fermentable substance are gradually diffused around the grinding disk 232 by the centrifugal force of the grinding disk 232. Finally, the crude fiber and fermentable substance are collected from the edge of the grinding disk 232 together in the slurry tank 231, thereby completing the grinding and separation of the crude fiber and fermentable substance in the grain raw materials, improving the subsequent extraction rate of the fermentable substance, and reducing the crude fiber content in the fermentable substance.

[0026] In one embodiment of the present invention, Figure 5 As shown, the grinding surface of the grinding disc 232 is provided with grinding teeth 234, and the grinding teeth 234 are spirally distributed on the grinding disc 232. The slurry tank 231 is a conical structure, and the inner wall of the slurry tank 231 and the side corresponding to the grinding disc 232 are provided with grinding particles. A guide wheel 235 is provided between the grinding disc 232 and the slurry tank 231 to ensure stable rotation of the grinding disc 232.

[0027] Specifically, after the extrusion spiral shaft 222 squeezes the grain slurry into the upper surface of the grinding disk 232, the grinding teeth 234 rotate and rub against the inner wall of the slurry tank 231 to fully grind the grain slurry, and the spirally arranged grinding teeth 234 play a role of diversion and homogenization, so that the ground grain slurry is quickly transferred from the grinding disk 232 during the rotation of the grinding disk 232, thereby improving the grinding efficiency of the grinding disk 232, and evenly distributing the grain raw materials in the grinding disk 232 to prevent the grain raw materials from being blocked in the grinding disk 232. The crude fiber and fermentable substances ground by the grinding disk 232 are finally guided from the edge of the grinding disk 232 into the slurry tank 231, and fall and are collected along the inverted cone-shaped slurry tank 231.

[0028] In one embodiment of the present invention, Figure 4 and Figure 6 As shown, a centrifugal screening mechanism 3 is provided at the discharge end of the slurry tank 231 . The centrifugal screening mechanism 3 is used to centrifugally screen the ground material. The centrifugal screening mechanism 3 includes a centrifugal assembly 31 , a coarse material collection box 33 and a fine material collection box 34 .

[0029] The centrifugal assembly 31 is arranged inside the fine material collection box 34, and the centrifugal assembly 31 includes a centrifugal drum 312, a screen drum 313 and a fixed screw shaft 314, wherein the centrifugal drum 312 is rotatably arranged inside the fine material collection box 34 through a bearing swivel 311, the screen drum 313 is arranged inside the centrifugal drum 312, the fixed screw shaft 314 is arranged inside the screen drum 313, a coarse material transfer pipe 32 is arranged on the top of the screen drum 313, the top of the fixed screw shaft 314 is fixedly connected to the coarse material transfer pipe 32, and the coarse material transfer pipe 32 is connected to the coarse material collection box 33. A slurry transfer pipe 25 is arranged between the bottom of the slurry tank 231 and the fine material collection box 34, and an abrasive transfer pump 24 is arranged on the slurry transfer pipe 25.

[0030] The spiral blades of the fixed spiral shaft 314 are of a mesh structure, a cleaning brush 3141 is provided at the spiral edge of the fixed spiral shaft 314 , the screen drum 313 is of a mesh structure, and a first fine material outlet 315 is provided at the bottom of the centrifugal drum 312 .

[0031] Specifically, in order to separate the crude fiber from the fermentable substance in the ground grain slurry, the slurry in the slurry tank 231 enters the slurry transfer pipe 25 through the grinding material transfer pump 24, and then the grain slurry enters the inner side of the screen cylinder 313 from the rotary joint 317. Since the centrifugal drum 312 rotates with the screen drum 313, and the top of the fixed screw shaft 314 is fixedly connected to the crude material transfer pipe 32, when the screen drum 313 rotates, the fixed screw shaft 314 rotates relative to the screen drum 313, and since the spiral blades of the fixed screw shaft 314 are a mesh structure, the slurry rotates inside the screen drum 313 and can pass through the blades of the fixed screw shaft 314. The fermentable substance in the slurry passes through the mesh screen drum 313 and is centrifugally filtered and then enters the inner side of the centrifugal drum 312, while the crude fiber in the grain slurry remains in the screen drum 313. After continuous accumulation, the fixed screw shaft 314 continuously transfers the accumulated crude fiber upward to the crude material transfer pipe 32, and finally the crude fiber is transferred into the crude material collection box 33.

[0032] In addition, when the fixed spiral shaft 314 rotates relative to the screen drum 313 , the cleaning brush 3141 on the outer side of the fixed spiral shaft 314 cleans the inner wall of the screen drum 313 to prevent the screen drum 313 from being blocked.

[0033] In one embodiment of the present invention, Figure 4 As shown, a second toothed disc 3182 is provided at the edge of the centrifugal drum 312, a centrifugal drive motor 318 is provided inside the fine material collecting box 34, a second gear head 3181 is provided on the power shaft of the centrifugal drive motor 318, the second gear head 3181 and the second toothed disc 3182 are meshed with each other, a second fine material outlet 316 is provided at the bottom of the fine material collecting box 34, and the coarse material transfer pipe 32 is rotatably connected to the top of the fine material collecting box 34.

[0034] Specifically, the centrifugal drive motor 318 drives the second gear head 3181 to rotate, and the second gear head 3181 engages with the second gear disc 3182 to drive the centrifugal drum 312 to rotate. The fermentable substance mixed with water after centrifugation by the screen drum 313 enters the inner side of the centrifugal drum 312, and flows out to the fine material collecting box 34 through the first fine material outlet 315 at the bottom of the centrifugal drum 312, and is discharged through the second fine material outlet 316 at the bottom of the fine material collecting box 34.

[0035] In one embodiment of the present invention, Figure 4 As shown, a slurry storage tank 223 is provided at the top of the slurry tank 231 , a mesh-structured grate cylinder 224 is provided inside the slurry storage tank 223 , and an extrusion spiral shaft 222 is provided inside the grate cylinder 224 .

[0036] Specifically, during the process of squeezing the grain slurry by the extrusion screw shaft 222, the fermentable substance mixed with water seeping out of the slurry during the extrusion process passes through the grate cylinder 224 into the slurry storage tank 223, and is discharged along the slurry outlet 225 at the bottom of the slurry storage tank 223. The fermentable substance in the slurry storage tank 223 can be used for subsequent extraction and utilization, reducing the water content in the slurry and facilitating the full grinding of the grain slurry on the grinding disk 232.

[0037] In one embodiment of the present invention, Figure 2 and Figure 3 As shown, the feeding mechanism 1 includes a feeding hopper 11 and a cleaning assembly 12, wherein the cleaning assembly 12 is arranged at the bottom discharge end of the feeding hopper 11, and the cleaning assembly 12 includes a cleaning cover 122 and a cleaning roller 123, wherein the cleaning roller 123 is rotatably arranged on the inner side of the cleaning cover 122 through a rotating seat 127, the top of the cleaning cover 122 is connected to the feeding hopper 11, and the bottom of the cleaning cover 122 is connected to the crushing tank 26.

[0038] Specifically, after entering the feeding hopper 11, the grain raw materials then enter the rotating cleaning drum 123 along the feeding hopper 11. The silicone cleaning brush 124 in the cleaning drum 123 performs rotational cleaning on the grain raw materials to reduce scratches on the surface of the grain raw materials. Since the water inlet 121 is provided at the feeding hopper 11, the grain raw materials are mixed with water during the rotational cleaning process to accelerate the cleaning of surface stains. Finally, the stains are mixed with water and discharged in sequence from the wastewater drainage port 131 at the bottom of the cleaning cover 122 and the wastewater discharge trough 13.

[0039] The cleaning drum 123 has a mesh structure to facilitate the leakage of dirt and water. Both ends of the cleaning drum 123 are hollowed out, and the diameter of the feed port of the cleaning drum 123 is larger than the diameter of the discharge port, so that the grain raw materials can be concentrated into the crushing trough 26. The cleaning drum 123 is placed at an angle to facilitate the grain raw materials to roll down and enter the crushing trough 26.

[0040] In one embodiment of the present invention, Figure 2 and Figure 3 As shown, a roller drive unit 125 is arranged on the inner side of the cleaning cover 122, and the roller drive unit 125 includes a first drive motor 1251 and a first gear disc 1253, wherein the first gear disc 1253 is arranged on the outside of the cleaning roller 123, and the first drive motor 1251 is arranged on the inner side of the cleaning cover 122, and a first gear head 1252 is arranged on the power shaft of the first drive motor 1251, and the first gear head 1252 and the first gear disc 1253 are meshed with each other, thereby driving the cleaning roller 123 to rotate.

[0041] In order to clearly explain the above embodiments, refer to Figure 1-Figure 6 The specific working principle of the grinding equipment for biomass feed production of the present invention is as follows: In the process of grinding the grain raw materials, the grain raw materials are first put into the feeding hopper 11. After entering the feeding hopper 11, the grain raw materials enter the rotating cleaning drum 123 along the feeding hopper 11. The drum driving unit 125 drives the cleaning drum 123 to rotate. The silicone cleaning brush 124 in the cleaning drum 123 rotates and cleans the grain raw materials. The stains mixed with water are discharged from the wastewater drainage port 131 and the wastewater discharge trough 13 at the bottom of the cleaning cover 122 in turn. Then, the grain raw materials roll down along the inclined cleaning drum 123 and enter the crushing trough 26 along the discharge port 126 at the bottom of the cleaning drum 123.

[0042] After the grain raw materials enter the grinding tank 26, water is added to the grinding tank 26 through the water injection port 27, and then the grinding motor 21 drives the grinding head 221 and the extrusion screw shaft 222 to rotate together. The grinding head 221 first cuts and grinds the grain raw materials to form small particles. Then the small particles of the grain raw materials enter the extrusion screw shaft 222 and are extruded together with mixed water to form grain slurry. In the process of the extrusion screw shaft 222 extruding the grain slurry, the water in the slurry dissolves the fermentable substances in the grain raw materials. The fermentable substances and water that seep out of the slurry during the extrusion process pass through the grate cylinder 224 and enter the slurry storage tank 223. The fermentable substances in the slurry storage tank 223 can be used for later extraction and utilization, further reducing the water content in the slurry, so that the grain slurry can be fully ground on the grinding disk 232.

[0043] The extruded grain slurry is extruded downward and transmitted into the second grinding assembly 23. After the extrusion spiral shaft 222 squeezes the grain slurry into the upper surface of the grinding disc 232, the grinding teeth 234 rotate and rub against the inner wall of the slurry groove 231 to fully grind the grain slurry. The crude fiber and fermentable substances ground by the grinding disc 232 are guided out from the edge of the grinding disc 232 into the slurry groove 231, and fall down along the inverted cone-shaped slurry groove 231 for collection.

[0044] The grain slurry in the slurry tank 231 enters the slurry transfer pipe 25 through the grinding material transfer pump 24, and then the ground grain slurry enters the inner side of the screen drum 313 from the rotary joint 317. Since the centrifugal drum 312 rotates with the screen drum 313, and the top of the fixed screw shaft 314 is fixedly connected to the coarse material transfer pipe 32, the fixed screw shaft 314 rotates relative to the screen drum 313, and since the spiral blades of the fixed screw shaft 314 are a mesh structure, the slurry rotates inside the screen drum 313 and can pass through the blades of the fixed screw shaft 314. The fermentable substances in the slurry pass through the mesh screen drum 313 and are centrifugally filtered and then enter the inner side of the centrifugal drum 312, while the crude fibers in the grain slurry remain in the screen drum 313. The crude fibers are continuously accumulated, and the fixed screw shaft 314 continuously transfers the accumulated crude fibers upward to the coarse material transfer pipe 32, and finally the crude fibers are transferred into the coarse material collection box 33. The fermentable substances mixed with water after centrifugation by the screen drum 313 enter the inner side of the centrifugal drum 312, and flow out to the fine material collecting box 34 through the first fine material outlet 315 at the bottom of the centrifugal drum 312, and are discharged for use through the second fine material outlet 316 at the bottom of the fine material collecting box 34. The above process completes the grinding and separation process of crude fiber and fermentable substances in the grain raw materials, and reduces the crude fiber content in the fermentable substances.

[0045] In summary, the grinding equipment for biomass feed production in the embodiment of the present invention first cuts and crushes the grain raw materials through a crushing head to make them into small particles, and then extrude the grain raw material particles for the first time through an extrusion spiral shaft to separate the fermentable substances and crude fibers therein for the first time, and then rotates and grinds the grain raw material particles through a grinding disk to fully grind the grain raw material particles for a second time to fully separate the crude fibers and fermentable substances therein, thereby facilitating the full separation of the crude fibers and fermentable substances in the grain raw materials in the later stage and reducing the crude fiber content of the grain raw materials after fermentation.

[0046] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A grinding device for biomass feed production, characterized in that: The invention comprises a grinding mechanism (2), wherein the grinding mechanism (2) comprises a first grinding component (22) and a second grinding component (23), wherein the second grinding component (23) is arranged at the discharge end of the first grinding component (22); The first grinding assembly (22) comprises a pulverizing motor (21), a pulverizing groove (26) and an extrusion spiral shaft (222), wherein a pulverizing blade head (221) is arranged inside the pulverizing groove (26), and the extrusion spiral shaft (222) is arranged below the pulverizing blade head (221), and both the pulverizing blade head (221) and the extrusion spiral shaft (222) are connected to the power shaft of the pulverizing motor (21); The second grinding assembly (23) comprises a slurry tank (231), a grinding disc (232) and a grinding disc motor (233), wherein the top feed end of the slurry tank (231) is connected to the bottom discharge end of the crushing tank (26), the grinding disc (232) is arranged inside the slurry tank (231), and the grinding disc (232) is connected to the power shaft of the grinding disc motor (233).

2. The grinding equipment for biomass feed production according to claim 1, characterized in that: The grinding surface of the grinding disc (232) is provided with grinding teeth (234), and the grinding teeth (234) are distributed in a spiral shape on the grinding disc (232).

3. The grinding equipment for biomass feed production according to claim 1, characterized in that: A centrifugal screening mechanism (3) is provided at the discharge end of the slurry tank (231), and the centrifugal screening mechanism (3) is used to centrifugally screen the ground material. The centrifugal screening mechanism (3) comprises a centrifugal assembly (31), a coarse material collection box (33) and a fine material collection box (34), wherein; The centrifugal assembly (31) is arranged inside the fine material collection box (34), and the centrifugal assembly (31) comprises a centrifugal drum (312), a screen drum (313) and a fixed screw shaft (314), wherein the centrifugal drum (312) is rotatably arranged inside the fine material collection box (34), the screen drum (313) is arranged on the inner side of the centrifugal drum (312), the fixed screw shaft (314) is arranged on the inner side of the screen drum (313), a coarse material transfer pipe (32) is arranged on the top of the screen drum (313), the top of the fixed screw shaft (314) is fixedly connected to the coarse material transfer pipe (32), and the coarse material transfer pipe (32) is connected to the coarse material collection box (33); The spiral blades of the fixed spiral shaft (314) are of a mesh structure, a cleaning brush (3141) is provided at the spiral edge of the fixed spiral shaft (314), the screen drum (313) is of a mesh structure, and a first fine material outlet (315) is provided at the bottom of the centrifugal drum (312).

4. The grinding equipment for biomass feed production according to claim 3, characterized in that: A second toothed disc (3182) is arranged at the edge of the centrifugal drum (312), a centrifugal drive motor (318) is arranged inside the fine material collection box (34), a second gear head (3181) is arranged on the power shaft of the centrifugal drive motor (318), the second gear head (3181) and the second toothed disc (3182) are meshed with each other, a second fine material outlet (316) is provided at the bottom of the fine material collection box (34), and the coarse material transfer pipe (32) is rotatably connected to the top of the fine material collection box (34).

5. The grinding equipment for biomass feed production according to claim 3, characterized in that: The slurry tank (231) is a conical structure, and abrasive particles are provided on a surface of the inner wall of the slurry tank (231) corresponding to the grinding disc (232). A slurry transfer pipe (25) is provided between the bottom of the slurry tank (231) and the fine material collection box (34), and an abrasive transfer pump (24) is provided on the slurry transfer pipe (25).

6. The grinding equipment for biomass feed production according to claim 1, characterized in that: A slurry storage tank (223) is arranged at the top of the slurry tank (231), a mesh-structured water grate cylinder (224) is arranged inside the slurry storage tank (223), and the extrusion spiral shaft (222) is arranged inside the water grate cylinder (224).

7. The grinding equipment for biomass feed production according to claim 1, characterized in that: The invention also comprises a feeding mechanism (1), wherein the feeding mechanism (1) comprises a feeding hopper (11) and a cleaning assembly (12), wherein the cleaning assembly (12) is arranged at the bottom discharge end of the feeding hopper (11), and the cleaning assembly (12) comprises a cleaning cover (122) and a cleaning roller (123), wherein the cleaning roller (123) is rotatably arranged on the inner side of the cleaning cover (122), the top of the cleaning cover (122) is connected to the feeding hopper (11), and the bottom of the cleaning cover (122) is connected to the crushing tank (26).

8. The grinding equipment for biomass feed production according to claim 7, characterized in that: The cleaning drum (123) is a mesh structure, with both ends of the cleaning drum (123) being hollowed out, and the diameter of the feeding port of the cleaning drum (123) being larger than the diameter of the discharging port. The cleaning drum (123) is placed at an angle, and a cleaning brush (124) made of silica gel is arranged inside. A wastewater discharge groove (13) is arranged at the bottom of the cleaning cover (122).

9. The grinding equipment for biomass feed production according to claim 7, characterized in that: A water inlet (121) is arranged at the top of the cleaning cover (122), and a drum drive unit (125) is arranged inside the cleaning cover (122). The drum drive unit (125) comprises a first drive motor (1251) and a first toothed disc (1253), wherein the first toothed disc (1253) is arranged outside the cleaning drum (123), the first drive motor (1251) is arranged inside the cleaning cover (122), a first gear head (1252) is arranged on the power shaft of the first drive motor (1251), and the first gear head (1252) and the first toothed disc (1253) are meshed with each other.

Images