Straw breaking and water-logged compost device
By designing a straw fertilization device that includes multi-stage crushing and fine grinding, screening and conveying components, the problem of difficult adjustment of fixed equipment in the prior art is solved, and uniform crushing of straw and high-quality refining fertilizer production is achieved.
Patent Information
- Application Number
- CN202421771364.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-07-25
AI Technical Summary
The existing straw crushing devices use fixed equipment, which is difficult to adjust according to different crushing needs, resulting in poor crushing effect and difficult to achieve uniform crushing, affecting production efficiency and quality of fertilizer.
A straw fertilization device including a crushing box, a crushing assembly, a fine grinding assembly and a screening conveying assembly is designed. The second crushing blade is driven by the first crushing blade connection gear to perform preliminary crushing, and the sliding blocks are used to adjust the spacing of the crushing blades to ensure uniform crushing of the straw. At the same time, multi-stage fine grinding and vibration screening technology are used to further improve the crushing uniformity and the quality of refining fertilizer.
The uniform crushing and multi-stage crushing of straw are achieved, the production efficiency and the quality of refining are improved, and the different crushing needs are adapted to avoid blockage and dust during the crushing process.
Smart Images
Figure CN222465421U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of straw crushing and processing, in particular to a straw crushing and composting device. Background Art
[0002] Straw refers to the plant stalks remaining after the harvest of crops, mainly including corn stalks, wheat stalks, rice straw, soybean straw, etc. These straws are usually composed of leaf sheaths, stems, leaves and other parts of plants, and are important by-products in agricultural production. In traditional agriculture, straw is often used as fuel, feed or directly returned to the field as fertilizer. When used as waste, a crushing and composting device is needed to treat the crop straw, crush it and convert it into organic fertilizer, and transport the straw powder to a fermentation container for composting treatment. In the existing crushing device, fixed crushing equipment is usually used to process and crush the straw during the processing. Due to the different crushing requirements of the straw, the fixed crushing equipment is not convenient to adjust according to different crushing requirements, which may result in poor crushing effect and difficulty in achieving uniform crushing of the straw, affecting production efficiency while reducing the quality of composting; therefore, we propose a straw crushing and composting device to solve the above-mentioned problems. Utility Model Content
[0003] In order to overcome the existing crushing devices, fixed crushing equipment is usually used to process and crush the straw. Due to the different crushing requirements of the straw, the fixed crushing equipment is not convenient to adjust according to different crushing requirements, which may lead to poor crushing effect and difficulty in achieving uniform crushing of the straw, affecting production efficiency and reducing the quality of composting.
[0004] The technical solution of the utility model is: a straw crushing and composting device, comprising a crushing box, a crushing component, a fine grinding component and a screening and conveying component; a crushing component for initially crushing large straws is installed inside the crushing box, a fine grinding component for multi-stage grinding and crushing of the initially crushed straws is installed at the lower end of the crushing box, and a screening and conveying component for conveying crushed powder to the composting device is installed at the lower end of the fine grinding component.
[0005] Preferably, the first crushing blade is connected to the gear to drive the second crushing blade to rotate and initially crush the straw, ensuring that the first and second crushing blades rotate at a consistent rhythm, so that the straw is evenly cut into small pieces, the processing speed is accelerated, the subsequent composting process is beneficial to improve production efficiency, and at the same time, the sliding block is connected to the auxiliary belt to slide and adjust the spacing between the crushing blades, so that the spacing between the crushing blades can adapt to different straw diameters, ensuring that the straw is evenly and properly crushed, adapting to different crushing requirements, and facilitating the subsequent fermentation process. Improve the quality of composting, a plurality of groups of auxiliary plates are laid on the inner wall of the crushing box and staggered with the crushing blades to assist the crushing blades in the initial crushing of large straws, thereby improving the initial crushing capacity of the crushing box for large straws, making the crushing process more uniform and avoiding straw from being crushed during the crushing process Blockage, improve the efficiency of crushing, use a driving motor to drive the first fine grinding wheel to connect the active wheel to drive the second fine grinding wheel to rotate and crush, cut the straw twice, reduce the volume of the straw, and realize multi-stage crushing of the straw to ensure that the straw is evenly crushed and avoid incomplete crushing. It is suitable for large-scale straw processing needs. Use a vibration motor to drive the screen plate to screen the finely ground straw to ensure that the crushed straw particles are uniform in size. At the same time, the stone impurities that may be generated during the fine grinding process are separated from the straw to ensure the purity and quality of the compost. Use a collecting plate to connect the discharging frame to transfer the straw powder to the compost, and use a vibration motor to assist in vibration to achieve smooth transmission of straw powder, reduce losses and congestion during transmission, and effectively reduce the dust of straw powder during transmission, thereby improving transmission efficiency.
[0006] Preferably, the crushing assembly includes a first crushing blade, a first rotating rod, a first gear, a second crushing blade, a second gear, a second rotating rod, an auxiliary plate, a rotating motor, a transmission belt, a sliding block, a limit screw, an auxiliary belt, a conveying frame and a positioning frame. A first rotating rod is provided inside the crushing box, and the outer wall of the first rotating rod is provided with a first crushing blade. A second rotating rod is provided outside the first crushing blade, and the outer wall of the second rotating rod is provided with a second crushing blade. One end of the first rotating rod is located on the outer wall of the crushing box and a first gear is provided. The second gear is located at one end of the second rotating rod, and the first gear is meshed with the second gear. The first crushing blade is connected to the gear to drive the second crushing blade to rotate and initially crush the straw, ensuring that the first and second crushing blades rotate in a consistent rhythm, so that the straw is evenly cut into small pieces, the processing speed is accelerated, which is beneficial to the subsequent composting process and improves production efficiency.
[0007] Preferably, an auxiliary belt is sleeved on the end of the second rotating rod away from the second gear, a sliding block is provided below the auxiliary belt, a fixed rod is provided inside the sliding block, the fixed rod is movably connected to the second rotating rod through the auxiliary belt, and limit screws are symmetrically provided on the outer wall of the sliding block. A sliding groove for accommodating the movement of the rotating rod is provided on the outer wall of the crushing box, a moving groove for accommodating the sliding of the sliding block is provided below the sliding groove, and a limiting hole for accommodating the limiting screw is provided inside the moving groove. The distance between the crushing blades is adjusted by sliding the auxiliary belt connected by the sliding block, so that the distance between the crushing blades can adapt to different straw diameters, ensuring that the straw is evenly and properly crushed to adapt to different crushing requirements, which is beneficial to the subsequent fermentation process and improves the quality of composting.
[0008] Preferably, a conveyor belt is sleeved on one end of the first crushing blade, a rotating motor is provided under the conveyor belt, the first crushing blade is movably connected to the rotating motor through the conveyor belt, a plurality of auxiliary plates are symmetrically provided on the inner wall of the crushing box, a conveying frame is provided at the lower end of the crushing box, and a positioning frame is provided on the outer wall of the conveying frame. By laying a plurality of auxiliary plates on the inner wall of the crushing box and staggering them with the crushing blades, the crushing blades are assisted in the preliminary crushing of large straws, the preliminary crushing capacity of the crushing box for large straws is improved, the crushing process is made more uniform, the straw is prevented from being blocked during the crushing process, and the crushing efficiency is improved.
[0009] Preferably, the fine grinding assembly includes a fine grinding box, a first fine grinding sheet, a driving wheel, a second fine grinding sheet, a driven wheel and a driving motor. The fine grinding box is located at the lower end of the conveying frame, and the fine grinding box is connected to the crushing box through the conveying frame. A first fine grinding sheet is arranged inside the fine grinding box, one end of the first fine grinding sheet is located on the outer side of the fine grinding box and is sleeved with a driving wheel, a second fine grinding sheet is arranged on the outer side of the first fine grinding sheet, the second fine grinding sheet is located on the outer side of the driving wheel and is provided with a driven wheel, and a driving motor is arranged on the end of the first fine grinding sheet away from the driving wheel. The driving motor drives the first fine grinding wheel to connect to the driving wheel to drive the second fine grinding wheel to rotate and crush, thereby performing secondary cutting of the straw, reducing the volume of the straw, and realizing multi-stage crushing of the straw to ensure uniform crushing of the straw and avoid incomplete crushing. This is suitable for large-scale straw processing needs and improves the quality of composting.
[0010] Preferably, the screening and conveying assembly includes a screen plate, a connecting rod, a spring, a fixed block, a vibration motor, a receiving plate and a discharging frame. The screen plate is located at the lower end of the fine grinding box, and the screen plate is connected to the fine grinding box. A connecting rod is provided at the lower end corner of the screen plate, and a support plate is provided below the connecting rod. A spring is provided between the support plate and the connecting rod, and a damper is provided on the inner side of the spring. A fixed block is provided at the lower end of the support plate, and a vibration motor is provided inside the fixed block. The screen plate driven by the vibration motor is used to screen the finely ground straw to ensure that the particle size of the crushed straw is uniform. At the same time, the stone impurities that may be generated during the fine grinding process are separated from the straw to ensure the purity and quality of the composting, which is helpful for the subsequent composting process.
[0011] Preferably, a receiving plate is provided at the lower end of the sieve plate, and a discharging frame is provided at the lower end of the receiving plate. The discharging frame extends through the lower end of the sieve plate to the outside of the composting equipment. The straw powder is transferred to the composting machine by connecting the discharging frame with the receiving plate, and the vibration motor is used to assist the vibration to achieve smooth transmission of the straw powder, reduce losses and congestion during the transmission process, and effectively reduce dust generated by the straw powder during the transmission process, thereby improving transmission efficiency.
[0012] Beneficial effects of the utility model:
[0013] 1. Compared with the traditional crushing device, the first crushing blade is connected to the gear to drive the second crushing blade to rotate and initially crush the straw, ensuring that the first and second crushing blades rotate at a consistent rhythm, so that the straw is evenly cut into small pieces, speeding up the processing speed, which is beneficial to the subsequent composting process and improving production efficiency. At the same time, the sliding block is connected to the auxiliary belt to slide and adjust the distance between the crushing blades, so that the distance between the crushing blades can adapt to different straw diameters, ensuring that the straw is evenly and properly crushed, adapting to different crushing requirements, and facilitating the subsequent fermentation process. Improve the quality of composting, multiple groups of auxiliary plates are laid on the inner wall of the crushing box and staggered with the crushing blades to assist the crushing blades in the initial crushing of large straws, improve the initial crushing capacity of the crushing box inside the large straw, make the crushing process more uniform, avoid straw blockage during the crushing process, and improve the crushing efficiency.
[0014] 2. By using a driving motor to drive the first fine grinding wheel to connect to the active wheel to drive the second fine grinding wheel to rotate and crush, the straw is cut twice, the volume of the straw is reduced, and multi-stage crushing of the straw is achieved to ensure that the straw is evenly crushed and avoid incomplete crushing. It is suitable for large-scale straw processing needs. A vibration motor is used to drive the screen plate to screen the finely ground straw to ensure that the crushed straw particles are uniform in size. At the same time, the stone impurities that may be generated during the fine grinding process are separated from the straw to ensure the purity and quality of the compost. The receiving plate is connected to the discharging frame to transfer the straw powder to the compost. The vibration motor is used to assist in vibration to achieve smooth transmission of the straw powder, reduce losses and congestion during transmission, and effectively reduce dust from the straw powder during transmission. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the crushing component of the utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the fine grinding assembly of the utility model;
[0018] Figure 4 It is a schematic diagram of the structure of the screening and conveying component of the utility model.
[0019] Explanation of the accompanying drawings: 1. crushing box; 2. crushing assembly; 201. first crushing blade; 202. first rotating rod; 203. first gear; 204. second crushing blade; 205. second gear; 206. second rotating rod; 207. auxiliary plate; 208. rotating motor; 209. transmission belt; 210. sliding block; 211. limit screw; 212. auxiliary belt; 213. conveying frame; 214. positioning frame; 3. fine grinding assembly; 301. fine grinding box; 302. first fine grinding sheet; 303. driving wheel; 304. second fine grinding sheet; 305. driven wheel; 306. driving motor; 4. screening and conveying assembly; 401. sieve plate; 402. connecting rod; 403. spring; 404. fixing block; 405. vibration motor; 406. receiving plate; 407. discharging frame. DETAILED DESCRIPTION
[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0021] See also Figure 1-4 The utility model provides an embodiment: a straw crushing and composting device, comprising a crushing box 1, a crushing component 2, a fine grinding component 3 and a screening and conveying component 4; the crushing box 1 is internally installed with a crushing component 2 for preliminary crushing of large straws, the lower end of the crushing box 1 is installed with a fine grinding component 3 for multi-stage grinding of the preliminarily crushed straws, and the lower end of the fine grinding component 3 is installed with a screening and conveying component 4 for conveying crushed powder to the composting device.
[0022] See also Figure 1-2In this embodiment, the crushing assembly 2 includes a first crushing blade 201, a first rotating rod 202, a first gear 203, a second crushing blade 204, a second gear 205, a second rotating rod 206, an auxiliary plate 207, a rotating motor 208, a transmission belt 209, a sliding block 210, a limit screw 211, an auxiliary belt 212, a conveying frame 213 and a positioning frame 214. The crushing box 1 is provided with a first rotating rod 202 inside, and the outer wall of the first rotating rod 202 is provided with a first crushing blade 201, and the outer side of the first crushing blade 201 is provided with a second rotating rod 206, and the outer wall of the second rotating rod 206 is provided with a second crushing blade 204. One end of the first rotating rod 202 is located on the outer wall of the crushing box 1 and is provided with a first gear 203, and the second gear 205 is located at one end of the second rotating rod 206. The first gear 203 is meshed with the second gear 205. By adopting the first crushing blade 201 to connect the gear to drive the second crushing blade 204 to rotate and initially crush the straw, ensuring that the first and The second crushing blade 204 rotates with a consistent rhythm to ensure that the straw is evenly cut into small pieces, speeding up the processing speed, facilitating the subsequent composting process and improving production efficiency. An auxiliary belt 212 is sleeved on the end of the second rotating rod 206 away from the second gear 205, and a sliding block 210 is provided below the auxiliary belt 212. A fixed rod is provided inside the sliding block 210, and the fixed rod is movably connected to the second rotating rod 206 through the auxiliary belt 212. The outer wall of the sliding block 210 is symmetrically provided with limit screws 211. The outer wall of the crushing box 1 is provided with a sliding groove to accommodate the movement of the rotating rod, and a moving groove to accommodate the sliding of the sliding block 210 is provided below the sliding groove. A limiting hole accommodating the limiting screw 211 is provided inside the moving groove. The sliding block 210 is connected to the auxiliary belt 212 to slide and adjust the distance between the crushing blades, so that the crushing blade spacing can adapt to different straw diameters, ensuring that the straw is evenly and appropriately crushed, adapting to different crushing requirements, facilitating the subsequent fermentation process, and improving the quality of composting.
[0023] See also Figure 1-3In this embodiment, a conveyor belt 209 is sleeved on one end of the first crushing blade 201, and a rotating motor 208 is arranged below the conveyor belt 209. The first crushing blade 201 is movably connected to the rotating motor 208 through the conveyor belt 209. A plurality of auxiliary plates 207 are symmetrically arranged on the inner wall of the crushing box 1, and a conveying frame 213 is arranged at the lower end of the crushing box 1. A positioning frame 214 is arranged on the outer wall of the conveying frame 213. By laying a plurality of auxiliary plates 207 on the inner wall of the crushing box 1 and staggered with the crushing blades, the auxiliary crushing blades can perform preliminary crushing of large straws, improve the preliminary crushing capacity of the crushing box 1 for large straws, make the crushing process more uniform, avoid straw blockage during the crushing process, and improve the crushing efficiency. The fine grinding assembly 3 includes a fine grinding box 301, a first fine grinding sheet 302, a driving wheel 303, a second fine grinding sheet 304, a driven wheel 305 and a driving motor 3 06. The fine grinding box 301 is located at the lower end of the conveying frame 213. The fine grinding box 301 is connected to the crushing box 1 through the conveying frame 213. A first fine grinding plate 302 is arranged inside the fine grinding box 301. One end of the first fine grinding plate 302 is located on the outer side of the fine grinding box 301 and is sleeved with a driving wheel 303. A second fine grinding plate 304 is arranged on the outer side of the first fine grinding plate 302. The second fine grinding plate 304 is located on the outer side of the driving wheel 303 and is provided with a driven wheel 305. A driving motor 306 is arranged on the end of the first fine grinding plate 302 away from the driving wheel 303. The driving motor 306 is used to drive the first fine grinding wheel to connect the driving wheel 303 and drive the second fine grinding wheel to rotate and crush, so as to perform secondary cutting of the straw, reduce the volume of the straw, and realize multi-stage crushing of the straw, so as to ensure that the straw is crushed evenly and avoid the situation of incomplete crushing. It is suitable for large-scale straw processing needs and improves the quality of composting.
[0024] See also Figure 2-4In this embodiment, the screening and conveying assembly 4 includes a sieve plate 401, a connecting rod 402, a spring 403, a fixed block 404, a vibration motor 405, a receiving plate 406 and a discharging frame 407. The sieve plate 401 is located at the lower end of the fine grinding box 301, and the sieve plate 401 is connected to the fine grinding box 301. A connecting rod 402 is provided at the lower corner of the sieve plate 401, and a support plate is provided below the connecting rod 402. A spring 403 is provided between the support plate and the connecting rod 402, and a damper is provided on the inner side of the spring 403. A fixed block 404 is provided at the lower end of the support plate, and a vibration motor 405 is provided inside the fixed block 404. The sieve plate 401 is driven by the vibration motor 405 to The straw is screened to ensure that the particle size of the crushed straw is uniform. At the same time, the stone impurities that may be produced during the fine grinding process are separated from the straw to ensure the purity and quality of the compost, which is helpful for the subsequent composting process. A receiving plate 406 is provided at the lower end of the sieve plate 401. A discharging frame 407 is provided at the lower end of the sieve plate 401. The discharging frame 407 passes through the lower end of the sieve plate 401 and extends to the outside of the composting equipment. The receiving plate 406 is connected to the discharging frame 407 to transfer the straw powder to the composting machine. The vibration motor 405 is used to assist the vibration to achieve smooth transmission of the straw powder, reduce losses and congestion during transmission, and effectively reduce dust generated by the straw powder during transmission, thereby improving transmission efficiency.
[0025] When working, first, according to the degree of straw crushing, use a tool to remove the limit screw 211 to drive the sliding block 210 to connect the auxiliary belt 212 to the second rotating rod 206 to adjust the distance between the second crushing blade 204 and the first crushing blade 201, so that the distance between the crushing blades can adapt to different straw diameters, ensuring that the straw is evenly and properly crushed to meet different crushing requirements. At the same time, according to the degree of crushing, a protective cover can be added to the outer wall of the sliding groove of the second rotating rod 206 to avoid splashing of the crushed straw. After the distance between the second crushing blades 204 is adjusted, the straw to be crushed is stuffed into the crushing box 1. The first part is to start the rotating motor 208 to drive the first rotating rod 202 to connect with the first gear 203 to drive the second crushing blade 204 to rotate for preliminary crushing, and ensure that the first and second crushing blades 204 rotate at a consistent rhythm, so as to ensure that the straw is evenly cut into small pieces, thereby speeding up the processing speed. At the same time, multiple groups of auxiliary plates 207 are laid on the inner wall of the crushing box 1 and staggered with the crushing blades to assist the crushing blades in the preliminary crushing of large straws, thereby improving the preliminary crushing capacity of the crushing box 1 for large straws, making the crushing process more uniform, avoiding the blockage of the straw during the crushing process, and realizing the preliminary crushing of the straw.
[0026] After the straw is fully crushed by the crushing blade, it falls into the bottom fine grinding box 301 through the conveying frame 213, and the driving motor 306 is started to drive the first fine grinding wheel to connect the active wheel 303 to drive the second fine grinding wheel to rotate and crush, and the secondary cutting and grinding of the straw reduces the volume of the straw and realizes multi-stage crushing of the straw to ensure that the straw is crushed evenly and avoids the situation of incomplete crushing. It is suitable for large-scale straw processing needs. After the straw is finely ground by the fine grinding wheel, the vibration motor 405 is started to drive the screen plate 401 to crush the finely ground straw. The straw is vibrated and screened to ensure that the size of the crushed straw particles is uniform. At the same time, the stone impurities that may be produced during the fine grinding process are separated from the straw to ensure the purity and quality of the compost. The screened straw powder is connected to the discharge frame 407 by the receiving plate 406 to transfer the straw powder to the compost. The vibration motor 405 is used to assist in vibration to achieve smooth transmission of the straw powder, reduce losses and congestion during transmission, and effectively reduce dust generated by the straw powder during transmission, thereby achieving the crushing of the straw and ensuring the quality of the compost.
[0027] Through the above steps, the first crushing blade 201 is connected to the gear to drive the second crushing blade 204 to rotate and initially crush the straw, ensuring that the first and second crushing blades 204 rotate at a consistent rhythm, so as to ensure that the straw is evenly cut into small pieces, speed up the processing speed, and is beneficial to the subsequent composting process and improve production efficiency. At the same time, the sliding block 210 is used to connect the auxiliary belt 212 to slide and adjust the spacing between the crushing blades, so that the spacing between the crushing blades can adapt to different straw diameters, ensuring that the straw is evenly and appropriately crushed, adapting to different crushing requirements, and is beneficial to the subsequent fermentation process and improving the quality of composting. A plurality of groups of auxiliary plates 207 are laid on the inner wall of the crushing box 1 and are staggered with the crushing blades to assist the crushing blades in the initial crushing of large straws, thereby improving the initial crushing capacity of the crushing box 1 for large straws, making the crushing process more uniform and avoiding the occurrence of straw in the crushing process. To prevent blockage and improve the efficiency of crushing, a driving motor 306 is used to drive the first fine grinding wheel to connect to the active wheel 303 to drive the second fine grinding wheel to rotate and crush, so as to perform secondary cutting of the straw, reduce the volume of the straw, and realize multi-stage crushing of the straw to ensure that the straw is evenly crushed and avoid incomplete crushing. This is suitable for large-scale straw processing needs. A vibration motor 405 is used to drive the screen plate 401 to screen the finely ground straw to ensure that the crushed straw particles are uniform in size. At the same time, the stone impurities that may be generated during the fine grinding process are separated from the straw to ensure the purity and quality of the compost. A receiving plate 406 is used to connect the discharging frame 407 to transfer the straw powder to the compost. The vibration motor 405 is used to assist in vibration to achieve smooth transmission of the straw powder, reduce losses and congestion during transmission, and effectively reduce the dust generated by the straw powder during transmission, thereby improving transmission efficiency.
[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.
Claims
1. A straw crushing and composting device, comprising a crushing box (1); characterized in that: The invention also comprises a crushing component (2), a fine grinding component (3) and a screening and conveying component (4); the crushing box (1) is provided with a crushing component (2) for initially crushing large straws; the crushing box (1) is provided with a fine grinding component (3) for multi-stage grinding of the initially crushed straws; the fine grinding component (3) is provided with a screening and conveying component (4) for conveying crushed powder to a composting device; the crushing component (2) comprises a first crushing blade (201), a first rotating rod (202), and a second rotating rod (203). 02), a first gear (203), a second crushing blade (204), a second gear (205), a second rotating rod (206), an auxiliary plate (207), a rotating motor (208), a transmission belt (209), a sliding block (210), a limit screw (211), an auxiliary belt (212), a conveying frame (213) and a positioning frame (214), wherein the first rotating rod (202) is provided inside the crushing box (1), and the first crushing blade (201) is sleeved on the outer wall of the first rotating rod (202), A second rotating rod (206) is provided outside the first crushing blade (201), and a second crushing blade (204) is sleeved on the outer wall of the second rotating rod (206). One end of the first rotating rod (202) is located on the outer wall of the crushing box (1) and a first gear (203) is provided. The second gear (205) is located at one end of the second rotating rod (206), and the first gear (203) is meshed with the second gear (205). An end of the second rotating rod (206) away from the second gear (205) is sleeved with an auxiliary belt (2 12), a sliding block (210) is provided below the auxiliary belt (212), a fixing rod is provided inside the sliding block (210), the fixing rod is movably connected to the second rotating rod (206) through the auxiliary belt (212), a limiting screw (211) is symmetrically provided on the outer wall of the sliding block (210), a sliding groove for accommodating the movement of the rotating rod is provided on the outer wall of the crushing box (1), a moving groove for accommodating the sliding of the sliding block (210) is provided below the sliding groove, and a limiting hole for accommodating the limiting screw (211) is provided inside the moving groove.
2. A straw crushing and composting device according to claim 1, characterized in that: A conveyor belt (209) is sleeved on one end of the first crushing blade (201), a rotating motor (208) is provided below the conveyor belt (209), the first crushing blade (201) is movably connected to the rotating motor (208) via the conveyor belt (209), a plurality of groups of auxiliary plates (207) are symmetrically provided on the inner wall of the crushing box (1), a conveying frame (213) is provided at the lower end of the crushing box (1), and a positioning frame (214) is provided on the outer wall of the conveying frame (213).
3. A straw crushing and composting device according to claim 2, characterized in that: The fine grinding assembly (3) comprises a fine grinding box (301), a first fine grinding sheet (302), a driving wheel (303), a second fine grinding sheet (304), a driven wheel (305) and a driving motor (306). The fine grinding box (301) is located at the lower end of the conveying frame (213). The fine grinding box (301) is connected to the crushing box (1) through the conveying frame (213). The first fine grinding sheet (302) is provided inside the fine grinding box (301). One end of the first fine grinding sheet (302) is located outside the fine grinding box (301) and is sleeved with the driving wheel (303). The second fine grinding sheet (304) is provided outside the first fine grinding sheet (302). The second fine grinding sheet (304) is located outside the driving wheel (303) and is provided with a driven wheel (305). The driving motor (306) is provided at one end of the first fine grinding sheet (302) away from the driving wheel (303).
4. The straw crushing and composting device according to claim 3, characterized in that: The screening and conveying assembly (4) comprises a sieve plate (401), a connecting rod (402), a spring (403), a fixed block (404), a vibration motor (405), a material receiving plate (406) and a material discharging frame (407). The sieve plate (401) is located at the lower end of the fine grinding box (301). The sieve plate (401) is connected to the fine grinding box (301). A connecting rod (402) is provided at the corner of the lower end of the sieve plate (401). A support plate is provided below the connecting rod (402). A spring (403) is provided between the support plate and the connecting rod (402). A damper is provided on the inner side of the spring (403). A fixed block (404) is provided at the lower end of the support plate. A vibration motor (405) is provided inside the fixed block (404).
5. The straw crushing and composting device according to claim 4, characterized in that: A material receiving plate (406) is provided at the lower end of the sieve plate (401), and a material discharging frame (407) is provided at the lower end of the material receiving plate (406). The material discharging frame (407) passes through the lower end of the sieve plate (401) and extends to the outside of the composting device.