Hemp plant stalk diameter separation equipment

Abstract

The invention discloses hemp plant stalk diameter separation equipment, and relates to the technical field of crushing, a plurality of crushing rollers are rotatably mounted in a cylinder, and a plurality of gears engaged with each other are respectively mounted at the ends of the plurality of crushing rollers, so that two adjacent crushing rollers in the plurality of crushing rollers can synchronously and relatively rotate; meanwhile, the box body is installed at the top of the barrel body, airflow blowing in the box body is used in cooperation with conveying of a first feeding pipe, a collecting pipe, a second feeding pipe, a U-shaped connecting pipe and a return pipe, and therefore the straw diameter crushing effect of the device is improved. And the large-particle stalk-diameter chippings can be sent back into the cylinder body to be crushed circularly, the small-particle stalk-diameter chippings can be guided out through the second hopper and the discharging pipe, and the process is conducted circularly, so that the crushing effect of the device on the stalk diameters of the hemp plants is improved.

Description

Technical Field

[0001] The invention relates to the technical field of crushing, in particular to a hemp plant stalk diameter separation device. Background Art

[0002] In the prior art, during the separation process of hemp plant stalks, the hemp plant stalks are usually crushed. The hemp plant stalks are conveyed to a crushing mechanism in a separation device and crushed into fine fragments by means of high-speed rotation of the crushing rollers in the crushing mechanism. This makes it convenient to compact, store, and recycle the hemp plant stalks.

[0003] Normally, the crushing mechanism in the separation equipment only uses symmetrically arranged crushing rollers to achieve basic crushing of the hemp plant stalk diameter, and the crushing effect is poor. There are some larger particles in the stalk diameter fragments exported after crushing. In the subsequent recycling and reuse of the hemp plant stalk diameter, more refined crushing processing is often required. In addition, the contact area between the hemp plant stalk diameter and the crushing roller during the crushing process is small, which easily affects the efficiency of the hemp plant stalk diameter separation and crushing.

[0004] Therefore, a hemp plant stalk diameter separation device is proposed to solve some problems existing in the above-mentioned prior art. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the conventional crushing mechanism in the prior art in the hemp plant stalk diameter separation process, which leads to poor stalk diameter crushing effect and low crushing efficiency, and to propose a hemp plant stalk diameter separation device.

[0006] In order to solve the problems existing in the prior art, the present invention adopts the following technical solutions: The hemp plant stalk diameter separation device comprises a cylinder, a plurality of crushing rollers are rotatably installed in the cylinder, and a plurality of knife teeth distributed around are fixedly installed on each crushing roller, the plurality of knife teeth on two adjacent crushing rollers mesh with each other, a gear is fixedly installed at the end axis position of the crushing roller, the two adjacent gears mesh with each other, a feed port is provided on the outer end wall of the cylinder, a box is fixedly installed on the top of the cylinder, and a first hopper and a second hopper are fixedly installed on the bottom of the box, a first air hole and a second air hole arranged symmetrically are provided on the end wall of the box, and the first hopper, the second hopper, the first air hole and the second air hole are provided. The holes are located on the same straight line, a bin box connected to the first air hole is fixedly installed on the outer end wall of the box body, a return pipe connected to the outer end wall of the cylinder body is fixedly connected to the bottom of the first hopper, a first feeding pipe is fixedly connected to the bottom of the cylinder body, and a second auger is rotatably installed in the first feeding pipe, a junction pipe is fixedly connected to the outer end of the first feeding pipe, and a vertically arranged second feeding pipe is fixedly connected to the top of the junction pipe, a third auger is rotatably installed in the second feeding pipe, a U-shaped connecting pipe is fixedly connected to the top of the second feeding pipe, and the U-shaped connecting pipe is connected to the top of the box body and is directly above the first hopper.

[0007] Preferably, the crushing roller is vertically installed in the cylinder, and multiple crushing rollers are evenly distributed in the cylinder around the central axis of the cylinder. A plurality of circumferentially distributed feed ports are opened on the outer end wall of the cylinder. A cover plate covering the outside of the feed port is fastened with bolts on the outer end wall of the cylinder, and a first conveying frame corresponding to the feed port is installed on the outside of the cylinder.

[0008] Preferably, at least six crushing rollers are provided, the number of the crushing rollers is set to an even number, and the blades on the crushing rollers are provided in both clockwise and counterclockwise directions.

[0009] Preferably, the bottoms of the first hopper and the second hopper are both configured as funnel-shaped structures, the return pipe is fixedly connected to the lowest point of the bottom of the first hopper, and the lowest point of the bottom of the second hopper is fixedly connected to a discharge pipe extending to the outside of the cylinder.

[0010] Preferably, a first auger is rotatably installed in the return pipe, and the central axis of the first auger moves upward to penetrate the outside of the box body. A transmission belt is connected between the central axis of the first auger and the central axis of the third auger, and the spiral direction of the first auger is opposite to that of the third auger.

[0011] Preferably, a vacuum generator is installed at the bottom of the cylinder, and one end of the vacuum generator is connected to a first connecting pipe, the other end of the vacuum generator is connected to a second connecting pipe, and the second connecting pipe is connected to the bottom of the manifold, and the middle position of the vacuum generator is connected to a third connecting pipe vertically arranged on the central axis of the cylinder, and holes are evenly opened on the outer end wall of the third connecting pipe.

[0012] Preferably, the vacuum generator includes a valve body fixedly mounted on the bottom of the cylinder, and a first channel connected to a first connecting pipe is opened in the valve body, a second channel connected to a second connecting pipe is opened in the valve body, a chamber connected between the first channel and the second channel is opened in the valve body, and the inner diameter of the chamber is set to three times the inner diameter of the first channel and the second channel, a nozzle connected to the first channel is fixed in the chamber, and the nozzle points to the second channel, the first channel, the second channel, the chamber and the nozzle are located in the same straight line, and the third connecting pipe is connected to the inner end wall of the chamber.

[0013] Preferably, the first conveying frame includes two symmetrically arranged first brackets, and each first bracket has two first conveying rollers and one second conveying roller installed in a vertically rotatable manner, the two first conveying rollers and one second conveying roller are distributed in an obtuse triangle structure, the two first conveying rollers and one second conveying roller are jointly sleeved with an annular conveyor belt, and a plurality of surrounding spacers are fixed on the outer end wall of the annular conveyor belt at equal intervals from bottom to top.

[0014] Preferably, a plurality of rollers evenly distributed on the same horizontal plane are rotatably mounted at the bottom of the two first brackets, and the rollers are lifted at the bottom of the lowest partition bar.

[0015] Preferably, a second conveyor frame is installed at one end of the first conveyor frame away from the feed port, and the second conveyor frame includes a second bracket, and multiple electric conveyor belts are installed on the second bracket from bottom to top, the number of electric conveyor belts corresponds to the number of partitions, the left ends of many electric conveyor belts are aligned, and the conveying length of the electric conveyor belts gradually decreases from top to bottom.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, by rotatably installing a plurality of crushing rollers in a cylinder, and installing a plurality of mutually meshing gears at the ends of the plurality of crushing rollers, two adjacent crushing rollers in the plurality of crushing rollers can rotate synchronously relative to each other, thereby improving the contact surface between the blade teeth on the crushing roller and the stem diameter, which is beneficial to improving the crushing effect of the device on the stem diameter of hemp plants. At the same time, by installing the box body on the top of the cylinder body, with the help of the air flow in the box body, in conjunction with the transportation of the first feeding pipe, the confluence pipe, the second feeding pipe, the U-shaped pipe and the return pipe, large-particle stem diameter debris can be returned to the cylinder body for cyclic crushing, and small-particle stem diameter debris can be discharged through the second hopper and the discharge pipe. In the cycle, it is beneficial to improve the crushing effect of the device on the stem diameter of hemp plants. 2. In the present invention, by vertically arranging a plurality of crushing rollers and surrounding the cylinder, and cooperating with a plurality of feed ports surrounding the cylinder, the device can be connected to a plurality of first conveying frames for simultaneous feeding according to actual processing requirements, so that the device presents a processing state of multi-directional feeding and crushing, which is beneficial to improving the efficiency of hemp plant stalk diameter crushing processing; 3. In the present invention, by installing the vacuum generator at the bottom of the cylinder, and connecting the first pipe connected to the first channel in the vacuum generator to the external blower, connecting the second pipe connected to the second channel to the bottom of the manifold, and installing the third pipe connected to the chamber at the middle position inside the cylinder, after the conversion of the vacuum generator, the airflow in the cylinder flows from the outside to the central axis, and enters the vacuum generator through the third pipe, and is then led out through the second pipe. This can not only effectively suppress the dust from flying during the crushing process of the device, but also ensure that the large-particle stalk-diameter debris returned in the return pipe can smoothly pass through the numerous crushing rollers to be circulated and crushed, which is conducive to ensuring the stability of the device during operation; 4. In the present invention, through the cooperation of the first conveyor frame and the second conveyor frame, the hemp plant stalks horizontally conveyed on the plurality of electric conveyor belts can be gathered between the front and rear two annular conveyor belts, and the ends of the plurality of electric conveyor belts away from the first conveyor frame are exposed layer by layer, so as to facilitate the addition of stalk diameters on each electric conveyor belt. With the cooperation of each other, it is beneficial to improve the efficiency of the device in crushing and feeding the hemp plant stalks in the vertical direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 A perspective view of the present invention; Figure 2 This is a disassembled diagram of the cylinder, crushing roller and gear of the present invention; Figure 3 This is a disassembled diagram of the box body, the first hopper and the second hopper of the present invention; Figure 4 It is a stereoscopic diagram of the first feeding pipe, the manifold, the second connecting pipe and the third connecting pipe of the present invention; Figure 5 For the present invention Figure 4 Split diagram of the structure in the middle; Figure 6 A three-dimensional diagram of the present invention after the first conveying rack and the second conveying rack are connected; Figure 7 A three-dimensional diagram of a first conveying rack and a second conveying rack of the present invention; Figure 8 is a three-dimensional diagram of a first conveying frame of the present invention; Fig. 9 For the present invention Figure 6 A top view of the structure in the middle; Fig.10 For the present invention Fig. 9 Sectional view at AA in the middle; Fig.11 For the present invention Fig. 9 Sectional view at the middle BB; Fig.12 For the present invention Fig. 9 Cross-sectional view at CC.

[0018] Serial number in the picture: 1. Cylinder; 101. Crushing roller; 102. Knife teeth; 103. Gear; 104. Feeding port; 105. Cover plate; 2. Box body; 201. First hopper; 202. Second hopper; 203. First air hole; 204. Second air hole; 205. Bin; 206. Return pipe; 207. First auger; 208. Discharging pipe; 3. First feeding pipe; 301. Second auger; 302. Converging pipe; 303. Second feeding pipe; 304. Third auger; 305. U-shaped pipe; 306. Transmission belt; 4. vacuum generator; 401. valve body; 402. first channel; 403. second channel; 404. chamber; 405. nozzle; 5. first connecting pipe; 501. second connecting pipe; 502. third connecting pipe; 503. hole; 6. First conveying frame; 601. First bracket; 602. First conveying roller; 603. Second conveying roller; 604. Annular conveying belt; 605. Spacer; 606. Support roller; 7. Second conveyor frame; 701. Second bracket; 702. Electric conveyor belt. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Embodiment: This embodiment provides a hemp plant stalk diameter separation device, see Figure 1 - Fig.12Specifically, it includes a cylinder 1, a plurality of crushing rollers 101 are rotatably installed in the cylinder 1, and each crushing roller 101 is fixedly installed with a plurality of surroundingly distributed knife teeth 102, and the plurality of knife teeth 102 on two adjacent crushing rollers 101 mesh with each other, a gear 103 is fixedly installed at the end axis position of the crushing roller 101, and the two adjacent gears 103 mesh with each other, a feed port 104 is provided on the outer end wall of the cylinder 1, a box 2 is fixedly installed on the top of the cylinder 1, and a first hopper 201 and a second hopper 202 are fixedly installed on the bottom of the box 2, and a first air hole 203 and a second air hole 204 are symmetrically arranged on the end wall of the box 2, and the first hopper 201, the second hopper 202, the first air hole 203 and the second air hole 204 are symmetrically arranged. 204 are located on the same straight line, a bin box 205 connected to the first air hole 203 is fixedly installed on the outer end wall of the box body 2, a return pipe 206 connected to the outer end wall of the cylinder body 1 is fixedly installed at the bottom of the first hopper 201, a first feeding pipe 3 is fixedly connected to the bottom of the cylinder body 1, and a second auger 301 is rotatably installed in the first feeding pipe 3, the outer end of the first feeding pipe 3 is fixedly connected to a confluence pipe 302, and the top of the confluence pipe 302 is fixedly connected to a vertically arranged second feeding pipe 303, a third auger 304 is rotatably installed in the second feeding pipe 303, the top of the second feeding pipe 303 is fixedly connected to a U-shaped connecting pipe 305, and the U-shaped connecting pipe 305 is connected to the top of the box body 2 and is directly above the first hopper 201.

[0021] When the device is in use, a servo motor for driving the crushing roller 101 to rotate is installed at the bottom of the cylinder 1. The crushing roller 101 is driven to rotate by the servo motor. With the help of the mutual meshing of gears 103 fixed at the ends of two adjacent crushing rollers 101, a plurality of crushing rollers 101 can be driven to rotate synchronously. With the help of the meshing reversing of two adjacent gears 103, the two adjacent crushing rollers 101 are made to rotate relatively synchronously, so that the fixed blade teeth 102 on the two adjacent crushing rollers 101 mesh with each other. The hemp plant stalks remaining after separation and peeling are put into the device through the feed port 104. The blade teeth 102 are driven by the plurality of crushing rollers 101 to rotate and mesh at a relatively high speed, thereby realizing the crushing operation of the hemp plant stalks. The crushed stalk fragments are gathered under the action of gravity. The bottom of the cylinder 1 enters into the first feed pipe 3, and a servo motor for driving the second auger 301 to rotate is installed on the outer side of the first feed pipe 3. With the help of the axial conveying force generated when the second auger 301 rotates, the stalk-diameter debris entered into the first feed pipe 3 is conveyed to the junction pipe 302, and a servo motor for driving the third auger 304 to rotate is installed on the outer side of the second feed pipe 303. The third auger 304 extends to the inside of the junction pipe 302. The outer size of the third auger 304 is adapted to the internal size of the junction pipe 302 and the second feed pipe 303. With the help of the axial conveying force generated during the rotation of the third auger 304, the stalk-diameter debris entered into the junction pipe 302 is conveyed along the second feed pipe 303 to the U-shaped connecting pipe 305.

[0022] The stalk-diameter debris is fed into the upper part of the box body 2 through the U-shaped pipe 305, and falls downward from the upper part of the box body 2. During this process, the bin box 205 is connected to an air blower, and air is supplied to the bin box 205 through the air blower, so that the air flow formed by the air supply is ejected through the first air hole 203 and acts on the stalk-diameter debris falling from top to bottom. Under the blowing of the air flow, the stalk-diameter debris with larger particles has a weak blowing effect on the air flow due to its large weight, so that the large-particle stalk-diameter debris falls directly downward. To the first hopper 201 directly below, while the stalk-diameter debris with smaller particles will float toward the second air hole 204 under the influence of the air flow, away from the first hopper 201, and finally fall into the second hopper 202. With the help of the air flow, the stalk-diameter debris with large particles (unqualified in crushing) will be collected in the first hopper 201, and the stalk-diameter debris with small particles (qualified in crushing) will be collected in the second hopper 202. A filter is installed at the second air hole 204 to prevent dust and debris from being blown out.

[0023] The large-particle stalk-diameter debris collected in the first hopper 201 is sent back to the cylinder 1 through the return pipe 206 connected to the lower end, re-enters the crushing path, and is driven by the many crushing rollers 101 rotating at high speed in the cylinder 1 to be crushed again by the cutter teeth 102, thereby realizing a cyclic crushing operation of the crushed stalks with unqualified diameters, so that the stalks can be finely broken after being crushed by the device, which is convenient for compaction storage or reprocessing in subsequent processes, and can effectively improve the crushing effect of the stalk diameter of hemp plants.

[0024] In the specific implementation process, Figure 2 , Figure 6 and Fig. 9 - Fig.12As shown, a crushing roller 101 is vertically installed in the cylinder 1, and a plurality of crushing rollers 101 are evenly distributed around the central axis of the cylinder 1 in the cylinder 1. A plurality of feed ports 104 distributed around the outer end wall of the cylinder 1 are provided, and a cover plate 105 covering the outside of the feed port 104 is fastened and installed on the outer end wall of the cylinder 1 by bolts. A first conveying frame 6 corresponding to the feed port 104 is installed on the outer side of the cylinder 1. At least six crushing rollers 101 are provided, and the number of crushing rollers 101 is set to an even number. The blades 102 on the crushing rollers 101 are provided with blades in both the clockwise direction and the counterclockwise direction. When the device is used, a plurality of crushing rollers 101 are vertically arranged and distributed around the cylinder 1. In the cylinder 1, a plurality of feed ports 104 are arranged around the outer end wall of the cylinder 1, so that the outer side of the cylinder 1 can open a corresponding number of feed ports 104 according to the actual feeding needs during processing, and connect a plurality of correspondingly arranged first conveying racks 6 through the plurality of feed ports 104. After the plurality of first conveying racks 6 are docked with the feed ports 104, they are distributed around the cylinder 1, presenting a processing state of multi-directional feeding, which can greatly improve the feeding speed of the device and is beneficial to improving the feeding speed when the diameter of the hemp plant stalks is crushed. Under normal circumstances, the feed port 104 is in a closed state by the cover plate 105, and the cover plate 105 will only be removed when the feed port 104 needs to be connected to the first conveying rack 6.

[0025] Since many crushing rollers 101 are distributed in a circumferential manner in the cylinder 1, the first conveying frame 6 corresponding to each feed port 104 can be directly driven by the crushing roller 101 to drive the cutter teeth 102 to rotate and crush when conveying the stalk diameter into the cylinder 1. The circumferentially distributed crushing rollers 101 can not only improve the stalk diameter crushing effect, but also effectively improve the crushing efficiency when the stalk diameter is fed in multiple directions. During the use of the device, the number of crushing rollers 101 is set to an even number to ensure that the gears 103 corresponding to the many crushing rollers 101 can mesh with each other end to end after the circumferential distribution, thereby ensuring the stability of the many circumferentially distributed crushing rollers 101 being driven to rotate. The number of crushing rollers 101 is set to at least six in order to reserve a certain vertical through space in the middle position of the many circumferentially distributed crushing rollers 101, so as to facilitate the downward drop of the stalk diameter through the middle position after the stalk diameter is crushed, which is beneficial to ensuring the stability of the device during actual operation.

[0026] In the specific implementation process, Figure 3 and Fig.12As shown, the bottoms of the first hopper 201 and the second hopper 202 are both configured as funnel-shaped structures, the return pipe 206 is fixedly connected to the lowest point of the bottom of the first hopper 201, and the lowest point of the bottom of the second hopper 202 is fixedly connected to a discharge pipe 208 extending to the outside of the cylinder 1. When the device is in use, by configuring the bottoms of the first hopper 201 and the second hopper 202 to be funnel-shaped structures, large-particle stalk-diameter debris collected in the first hopper 201 can be guided by the funnel-shaped structure at the bottom to smoothly enter the return pipe 206, and then enter the cylinder 1 for cyclic crushing, while small-particle stalk-diameter debris collected in the second hopper 202 can be guided by the funnel-shaped structure at the bottom to smoothly discharge through the discharge pipe 208, which is beneficial to ensuring the smooth flow of the stalk-diameter debris.

[0027] In the specific implementation process, Figure 4 , Figure 5 and Fig.12 As shown, a first auger 207 is rotatably installed in the return pipe 206, and the central axis of the first auger 207 moves upward to the outside of the box body 2, and a transmission belt 306 is connected between the central axis of the first auger 207 and the central axis of the third auger 304. The spiral direction of the first auger 207 is opposite to the spiral direction of the third auger 304. When the device is in use, in the process of guiding large-grained stalk-diameter debris into the cylinder body 1 through the return pipe 206, under the transmission connection of the transmission belt 306, the first auger 207 installed in the return pipe 206 will rotate at high speed, and with the help of the axial conveying force generated by the rotation of the first auger 207, the large-grained stalk-diameter debris can be driven to be conveyed into the cylinder body 1 more smoothly, which is beneficial to improving the smoothness of the circulating conveying and crushing of large-grained stalk-diameter debris.

[0028] In the specific implementation process, Fig.12As shown, a vacuum generator 4 is installed at the bottom of the cylinder 1, and one end of the vacuum generator 4 is connected to a first connecting pipe 5, and the other end of the vacuum generator 4 is connected to a second connecting pipe 501, and the second connecting pipe 501 is communicated with the bottom of the manifold 302, and the middle position of the vacuum generator 4 is connected to a third connecting pipe 502 vertically arranged on the central axis of the cylinder 1, and holes 503 are evenly opened on the outer end wall of the third connecting pipe 502, and the vacuum generator 4 includes a valve body 401 fixedly installed at the bottom of the cylinder 1, and a first channel 402 communicating with the first connecting pipe 5 is opened in the valve body 401, A second channel 403 connected to the second connecting pipe 501 is provided in the valve body 401, a chamber 404 connected between the first channel 402 and the second channel 403 is provided in the valve body 401, and the inner diameter of the chamber 404 is set to be three times the inner diameter of the first channel 402 and the second channel 403, a nozzle 405 connected to the first channel 402 is fixed in the chamber 404, and the nozzle 405 points to the second channel 403, the first channel 402, the second channel 403, the chamber 404 and the nozzle 405 are located on the same straight line, and the third connecting pipe 502 is connected to the inner end wall of the chamber 404.

[0029] When the device is in use, the first connecting pipe 5 is externally connected to a blowing device, through which a high-speed airflow is continuously supplied to the first channel 402, and the high-speed airflow is ejected into the second channel 403 through the nozzle 405, and ejected outwardly through the second connecting pipe 501. Based on the Bernoulli effect, a negative pressure area is formed in the chamber 404, so that the external airflow enters the vacuum generator 4 through the third connecting pipe 502, and a structure in which the first channel 402 and the third connecting pipe 502 are inlet and the second connecting pipe 501 is outlet is formed in the vacuum generator 4. Under the above structure, the airflow in the cylinder 1 enters the third connecting pipe 502 through the hole 503, and then enters the chamber 404, and is ejected through the second connecting pipe 501, forming an airflow flowing from the outside to the central axis direction of the cylinder 1 in the cylinder 1. Under the influence of the inward flow of the airflow, the dust generated by the stalk diameter crushing can be prevented from spreading outward, which is conducive to ensuring a clean and hygienic surrounding working environment.

[0030] At the same time, with the help of the suction of the airflow flowing from the outside to the inside, the large-particle stalk-diameter debris that flows back into the cylinder 1 from the return pipe 206 can pass through the numerous crushing rollers 101 that are distributed around and whose outer teeth 102 are engaged with each other more smoothly, which is beneficial to ensure the stability and smoothness of the cyclic crushing of the large-particle stalk-diameter debris. By connecting the second connecting pipe 501 to the bottom of the conduit 302, the stalk-diameter debris that has been crushed by the teeth 102 on the crushing roller 101 can enter the third connecting pipe 502 through the hole 503 under the influence of the airflow, and then Under the control of air flow, it enters the chamber 404, and is connected to the second channel 403 and the second connecting pipe 501 to merge into the confluence pipe 302, so as to realize subsequent export and circulation crushing operations. By connecting the second connecting pipe 501 to the bottom of the confluence pipe 302, the second connecting pipe 501 is made to be directly below the second feeding pipe 303. With the help of the air flow in the second connecting pipe 501, an upward airflow can be formed in the second feeding pipe 303, which is beneficial to further improve the stability and smoothness of the stalk-diameter debris when it is transported through the second feeding pipe 303.

[0031] In the specific implementation process, Figure 6 - Fig.10 As shown, the first conveyor frame 6 includes two symmetrically arranged first brackets 601, and each of the first brackets 601 is vertically rotatably installed with two first conveyor rollers 602 and one second conveyor roller 603, the two first conveyor rollers 602 and one second conveyor roller 603 are distributed in an obtuse triangle structure, the two first conveyor rollers 602 and one second conveyor roller 603 are jointly sleeved with an annular conveyor belt 604, and a plurality of surrounding spacers 605 are fixed on the outer end wall of the annular conveyor belt 604 at equal intervals from bottom to top. A plurality of rollers 606 evenly distributed on the same horizontal plane are rotatably installed at the bottom, and the rollers 606 are lifted on the bottom of the lowest partition 605. A second conveyor frame 7 is installed at the end of the first conveyor frame 6 away from the feed port 104, and the second conveyor frame 7 includes a second bracket 701. A plurality of electric conveyor belts 702 are installed on the second bracket 701 from bottom to top, and the number of the electric conveyor belts 702 corresponds to the number of partitions 605. The left ends of the plurality of electric conveyor belts 702 are aligned, and the conveying length of the electric conveyor belt 702 gradually decreases from top to bottom.

[0032] When the device is in use, the staff can use the first conveyor frame 6 and the second conveyor frame 7 to cooperate to realize the feeding and conveying of the stalk diameter. Since the crushing roller 101 is vertically arranged in the cylinder 1, and many first conveyor frames 6 can be distributed around the outside of the cylinder 1, in order to improve the feeding efficiency when the stalk diameter is crushed in a single direction, the feed port 104 is set to a vertical narrow and long structure. In conjunction with the use of the first conveyor frame 6, the stalk diameters transported on the many electric conveyor belts 702 on the second conveyor frame 7 can be gathered between the two symmetrically arranged annular conveyor belts 604, and the correspondingly arranged partitions 605 on the two annular conveyor belts 604 can be blocked, so that the stalk diameters transported on each electric conveyor belt 702 can be gathered in the passage. During the process of gathering and conveying through the first conveyor frame 6, the wood can stably enter the feed port 104. Two symmetrically arranged annular conveyor belts 604 form a Y-shaped structure. The annular conveyor belt 604 expands outward at one end close to the second conveyor frame 7, which can guide the feeding of the stalk diameter. The conveying length of each electric conveyor belt 702 on the second bracket 701 is gradually reduced from top to bottom, and multiple electric conveyor belts 702 are aligned close to one end of the first conveyor frame 6, so that the ends of many electric conveyor belts 702 away from the first conveyor frame 6 are exposed layer by layer, which is convenient for adding stalk diameter on each electric conveyor belt 702, which is beneficial to improving the convenience and efficiency of stalk diameter crushing and feeding.

[0033] Specifically, the working principle and operation method of the present invention are as follows: The remaining stem diameter after the separation of hemp plants is transported by the second conveyor frame 7 and the first conveyor frame 6, and enters the cylinder 1 from the feed port 104. The numerous crushing rollers 101 distributed around the cylinder 1 are driven to rotate at a high speed under the mutual meshing of numerous gears 103, driving the numerous blade teeth 102 on the adjacent crushing rollers 101 to mesh with each other, so as to efficiently crush the stem diameter of the hemp plants. The stem diameter debris generated by the crushing gathers at the center position of the cylinder 1, falls into the first feeding pipe 3, and is conveyed by the axial conveying generated by the rotation of the second auger 301. The force is delivered to the manifold 302. Synchronously, the external blower blows a high-speed airflow into the first channel 402 through the first connecting pipe 5. The high-speed airflow is sprayed into the second channel 403 through the nozzle 405, forming a negative pressure area in the chamber 404, so that the airflow in the cylinder 1 flows into the chamber 404 through the third connecting pipe 502, and then drives the airflow in the cylinder 1 to flow from the outside to the central axis position. With the help of the airflow entrainment, the dust generated by the crushing is prevented from flying outwards. Synchronously, with the help of the airflow entrainment, the crushed dust in the cylinder 1 is The raw stalk-diameter debris enters the third connecting pipe 502 through the hole 503, and then enters the second channel 403 through the chamber 404, and is transported to the manifold 302 along the second connecting pipe 501. With the help of the axial conveying force generated by the rotation of the third auger 304, the stalk-diameter debris entering the manifold 302 is sent to the upper position inside the box 2 along the second feeding pipe 303 and the U-shaped connecting pipe 305, and falls into the box 2. At the same time, the blower device connected to the bin box 205 is started, and the air is blown to the second air hole 204 in the box 2 through the first air hole 203. The air is blown in the direction, and the air flow blows so that the heavier large-particle stalk-diameter debris falls into the first hopper 201 directly below, and the lighter small-particle stalk-diameter debris falls into the second hopper 202 slightly farther away, and is discharged through the discharge pipe 208. The large-particle stalk-diameter debris collected in the first hopper 201 is sent back into the cylinder 1 through the return pipe 206, and is crushed for the second time by the large number of high-speed rotating teeth 102 on the crushing roller 101 in the cylinder 1, until it is small enough to meet the requirements, thereby realizing the cyclic crushing after the hemp plant stalk diameter separation.

[0034] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hemp plant stalk diameter separation device, comprising a cylinder (1), characterized in that: A plurality of crushing rollers (101) are rotatably mounted in the cylinder (1), and each of the crushing rollers (101) is fixedly mounted with a plurality of circumferentially distributed blade teeth (102), the plurality of blade teeth (102) on two adjacent crushing rollers (101) mesh with each other, a gear (103) is fixedly mounted at the end axis position of the crushing roller (101), and the two adjacent gears (103) mesh with each other, a feed port (104) is provided on the outer end wall of the cylinder (1), a box (2) is fixedly mounted on the top of the cylinder (1), and a first hopper (201) and a second hopper (202) are fixedly mounted on the bottom of the box (2), and a first air hole (203) and a second air hole (204) are symmetrically arranged on the end wall of the box (2), and the first hopper (201), the second hopper (202), the first air hole (203) and the second air hole (204) are symmetrically mounted. 4) are located on the same straight line, a bin box (205) connected to the first air hole (203) is fixedly installed on the outer end wall of the box body (2), a return pipe (206) connected to the outer end wall of the cylinder body (1) is fixedly installed at the bottom of the first hopper (201), a first feeding pipe (3) is fixedly connected to the bottom of the cylinder body (1), and a second auger (301) is rotatably installed in the first feeding pipe (3), the outer end of the first feeding pipe (3) is fixedly connected to a confluence pipe (302), and the top of the confluence pipe (302) is fixedly connected to a vertically arranged second feeding pipe (303), a third auger (304) is rotatably installed in the second feeding pipe (303), and the top of the second feeding pipe (303) is fixedly connected to a U-shaped pipe (305), and the U-shaped pipe (305) is connected to the top of the box body (2) and is located directly above the first hopper (201).

2. The hemp plant stalk diameter separation device according to claim 1, characterized in that: The crushing roller (101) is vertically installed in the cylinder (1), and a plurality of the crushing rollers (101) are evenly distributed in the cylinder (1) around the central axis of the cylinder (1). A plurality of circumferentially distributed feed ports (104) are provided on the outer end wall of the cylinder (1). A cover plate (105) covering the outside of the feed port (104) is fastened to the outer end wall of the cylinder (1) by bolts, and a first conveying frame (6) corresponding to the feed port (104) is installed on the outer side of the cylinder (1).

3. The hemp plant stalk diameter separation device according to claim 2, characterized in that: At least six crushing rollers (101) are provided, the number of the crushing rollers (101) is set to an even number, and the blade teeth (102) on the crushing rollers (101) are provided with blades in both the clockwise direction and the counterclockwise direction.

4. The hemp plant stalk diameter separation device according to claim 1, characterized in that: The bottoms of the first hopper (201) and the second hopper (202) are both configured as funnel-shaped structures; the return pipe (206) is fixedly connected to the lowest point of the bottom of the first hopper (201); and the lowest point of the bottom of the second hopper (202) is fixedly connected to a discharge pipe (208) extending to the outside of the cylinder (1).

5. The hemp plant stalk diameter separation device according to claim 1, characterized in that: A first auger (207) is rotatably mounted in the return pipe (206), and the central axis of the first auger (207) moves upward to penetrate the outside of the box (2). A transmission belt (306) is connected between the central axis of the first auger (207) and the central axis of the third auger (304). The spiral direction of the first auger (207) is opposite to the spiral direction of the third auger (304).

6. The hemp plant stalk diameter separation device according to claim 3, characterized in that: A vacuum generator (4) is installed at the bottom of the cylinder (1), and one end of the vacuum generator (4) is connected to a first connecting pipe (5), and the other end of the vacuum generator (4) is connected to a second connecting pipe (501), and the second connecting pipe (501) is communicated with the bottom of the manifold (302), and a third connecting pipe (502) vertically arranged on the central axis of the cylinder (1) is connected to the middle position of the vacuum generator (4), and holes (503) are evenly opened on the outer end wall of the third connecting pipe (502).

7. The hemp plant stalk diameter separation device according to claim 6, characterized in that: The vacuum generator (4) comprises a valve body (401) fixedly mounted at the bottom of the cylinder (1), and a first channel (402) communicating with a first connecting pipe (5) is provided in the valve body (401), a second channel (403) communicating with a second connecting pipe (501) is provided in the valve body (401), a chamber (404) communicating between the first channel (402) and the second channel (403) is provided in the valve body (401), and the inner diameter of the chamber (404) is set to be three times the inner diameter of the first channel (402) and the second channel (403), a nozzle (405) communicating with the first channel (402) is fixed in the chamber (404), and the nozzle (405) points to the second channel (403), the first channel (402), the second channel (403), the chamber (404) and the nozzle (405) are located on the same straight line, and the third connecting pipe (502) is communicated with the inner end wall of the chamber (404).

8. The hemp plant stalk diameter separation device according to claim 2, characterized in that: The first conveying frame (6) comprises two symmetrically arranged first brackets (601), and each of the first brackets (601) has two first conveying rollers (602) and one second conveying roller (603) installed in a vertically rotatable manner, the two first conveying rollers (602) and one second conveying roller (603) are arranged in an obtuse triangle structure, the two first conveying rollers (602) and one second conveying roller (603) are jointly sleeved with an annular conveying belt (604), and a plurality of surrounding spacers (605) are fixed on the outer end wall of the annular conveying belt (604) at equal intervals from bottom to top.

9. The hemp plant stalk diameter separation device according to claim 8, characterized in that: A plurality of rollers (606) evenly distributed on the same horizontal plane are rotatably mounted at the bottom of the two first brackets (601), and the rollers (606) are lifted at the bottom of the lowest partition bar (605).

10. The hemp plant stalk diameter separation device according to claim 8, characterized in that: A second conveyor frame (7) is installed at one end of the first conveyor frame (6) away from the feed port (104), and the second conveyor frame (7) includes a second bracket (701), and a plurality of electric conveyor belts (702) are installed on the second bracket (701) from bottom to top, and the number of the electric conveyor belts (702) corresponds to the number of the partition bars (605), the left ends of the plurality of the electric conveyor belts (702) are aligned, and the conveying length of the electric conveyor belts (702) gradually decreases from top to bottom.

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