Solid waste crushing device with circulating function

By using the counter-rotating upper and lower crushing blades and the agitation design of the screen, multiple crushing and screening of solid waste are achieved, solving the problem of uneven crushing of solid waste and improving crushing quality and efficiency.

CN224127448UActive Publication Date: 2026-04-17SICHUAN ZHONGKE BTE NANO-TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN ZHONGKE BTE NANO-TECH CO LTD
Filing Date
2025-04-28
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In existing technologies, the uneven crushing of solid waste results in a wide range of particle size distribution after crushing, which makes it difficult to meet the needs of subsequent resource recycling and treatment.

Method used

The design adopts the upper and lower crushing blades rotating in opposite directions. Combined with the multiple agitation and screening by the screen and dividing frame, the material is homogenized through multiple crushing and screening. The position of the crushing blades is adjusted by the limit spring and steel cable to achieve multiple crushing and screening of the material.

Benefits of technology

It improves the quality and efficiency of material crushing, reduces the proportion of powder, ensures that materials reach the same particle size, and adapts to the needs of various processing steps.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a solid waste crushing device with a circulating function, which relates to the technical field of solid waste treatment, and comprises a support frame, a crushing cylinder provided with a crushing chamber is fixedly mounted on the support frame, a main shaft is rotatably arranged in the crushing cylinder, upper crushing blades are fixedly mounted on the outer wall of the main shaft, and a lower crushing blade is fixedly mounted on the outer wall of the main shaft. A lower crushing blade is rotatably mounted on the outer wall of the main shaft and makes contact with the upper crushing blade, a movable rod is movably mounted in the main shaft, a partition frame is fixedly mounted at the end, away from the main shaft, of the movable rod, and a screen is slidably mounted on the partition frame; according to the device, materials are smashed through rotation of an upper smashing blade and a lower smashing blade, meanwhile, the materials pass through the upper smashing blade and the lower smashing blade for multiple times in the smashing barrel and then are screened, so that the materials can reach the same diameter particle size, meanwhile, the proportion of powder in the materials is reduced, and the material utilization rate is increased. Therefore, the quality of crushed materials is improved.
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Description

Technical Field

[0001] This utility model relates to the field of solid waste treatment technology, specifically to a solid waste crushing device with a recycling function. Background Technology

[0002] With the continuous acceleration of urbanization, the amount of various solid wastes generated has shown a rapid growth trend. Solid wastes come from a wide range of sources, covering multiple fields such as industrial production, daily life, construction, and agricultural activities. Their composition is complex and diverse, containing a large amount of organic matter, inorganic matter, and various synthetic materials that are difficult to degrade. In the process of solid waste treatment, crushing is an extremely important step.

[0003] When solid waste is crushed, it is usually just a simple one-time crushing process using blades. This single crushing method makes it difficult to crush the material evenly to the ideal particle size, resulting in a wide range of particle size distribution after crushing. It often contains larger particles, which brings great difficulties to subsequent solid waste treatment processes, such as further resource recycling, composting, or incineration. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model proposes the following technical solution:

[0005] A solid waste pulverizing device with a recycling function includes a support frame. A pulverizing cylinder providing a pulverizing chamber is fixedly installed on the support frame. A main shaft rotates inside the pulverizing cylinder. An upper crushing blade is fixedly installed on the outer wall of the main shaft and disposed inside the pulverizing cylinder. A lower crushing blade is rotatably installed on the outer wall of the main shaft and contacts the upper crushing blade. Multiple intermediate gears are meshed inside the lower crushing blade. A shaft gear is provided on the main shaft. The intermediate gears also mesh with the shaft gear on the main shaft. When the main shaft rotates, it drives the upper and lower crushing blades to rotate simultaneously. The lower crushing blade rotates in the opposite direction due to the transmission of the intermediate gears. A movable rod is movably installed inside the main shaft. The outer wall of the movable rod contacts the inner wall of the main shaft. A dividing frame is fixedly installed at the end of the movable rod away from the main shaft. Multiple stirring plates are provided on the outer side of the dividing frame to stir the material inside the pulverizing cylinder. A screen is slidably installed on the dividing frame.

[0006] Furthermore, the screen is slidably connected to the agitator plate, and the screen is provided with multiple filter holes for screening materials. An annular frame is fixedly installed on the outside of the screen, and the annular frame is slidably connected to the inner wall of the crushing cylinder. The screen and the dividing frame are used to screen and agitate the crushed materials inside the crushing cylinder. The screen does not rotate when the crushing blades rotate.

[0007] Furthermore, a limit spring is fixedly installed on the screen, and the other end of the limit spring is fixedly installed on the dividing frame. When the dividing frame comes into contact with the lower crushing blade, the lower crushing blade will squeeze the dividing frame, thus allowing the dividing frame to slide on the screen.

[0008] Furthermore, a steel cable is rotatably mounted on the movable rod, and the steel cable is set inside the main shaft. An adjusting frame is also fixedly mounted on one end of the crushing cylinder. A main frame is slidably mounted on the adjusting frame, and an adjusting screw is rotatably mounted on the adjusting frame. The adjusting screw is threadedly connected to the main frame. Rotating the adjusting screw can adjust the distance between the main frame and the crushing cylinder.

[0009] Furthermore, an electric winch is installed on the main frame, and one end of the steel cable is mounted on the electric winch. When the electric winch rotates, the movable rod can be pulled to slide inside the main shaft via the steel cable. The main frame is rotatably connected to the main shaft. When the distance between the main frame and the crushing cylinder changes, the main frame will also slide on the crushing cylinder along with the main shaft, thereby changing the position of the upper and lower crushing blades inside the crushing cylinder to crush special materials.

[0010] Furthermore, a main motor is fixedly installed on the main frame, and a main gear is fixedly installed on the output shaft of the main motor. A drive gear is provided at one end of the main shaft outside the crushing cylinder. The main gear meshes with the drive gear on the main shaft. When the main motor is started, the main shaft can be driven to rotate through the main gear.

[0011] The advantages of this utility model compared with the prior art are: (1) This device crushes the material by rotating the upper and lower crushing blades. At the same time, by letting the material pass through the upper and lower crushing blades multiple times in the crushing cylinder before screening, the material can achieve the same particle size while reducing the proportion of powder in the material, thereby improving the quality of the crushed material; (2) This device filters the material by letting the filter holes on the screen mesh, and the material can be continuously turned over by shaking the screen mesh. At the same time, the material on the screen mesh can repeatedly pass through the upper and lower crushing blades by the rapid movement of the dividing frame in the crushing cylinder, thereby improving the crushing efficiency of this device. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the crushing cylinder, feeding box, adjusting frame, and cross-section structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the steel cable structure of this utility model.

[0015] Figure 4This is a cross-sectional structural diagram of the upper crushing blade, lower crushing blade, dividing frame, screen, and annular frame of this utility model.

[0016] Figure 5 for Figure 4 Enlarged view of a portion of point A in the middle.

[0017] Figure 6 This is a cross-sectional structural diagram of the main shaft, upper crushing blade, lower crushing blade, dividing frame, screen, and ring frame of this utility model.

[0018] Reference numerals in the attached drawings: 101-Support frame; 102-Crushing cylinder; 103-Feed box; 104-Sealing cover; 105-Adjusting frame; 201-Main frame; 202-Adjusting screw; 203-Electric winch; 204-Steel cable; 206-Main motor; 207-Main shaft; 208-Upper crushing blade; 209-Lower crushing blade; 210-Intermediate gear; 211-Moving rod; 212-Dividing frame; 213-Screen; 214-Ring frame; 215-Limiting spring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] like Figure 1 and Figure 2 As shown, a solid waste crushing device with a recycling function includes a support frame 101. A crushing cylinder 102 providing a crushing chamber is fixedly installed on the support frame 101. A feed box 103 is fixedly installed on the outer wall of the crushing cylinder 102 away from the support frame 101. The feed box 103 is the material inlet of the crushing cylinder 102. A sealing cover 104 for closing the feed box 103 is slidably installed on the feed box 103. A material outlet is provided at one end of the crushing cylinder 102 away from the feed box 103.

[0021] like Figures 2 to 5As shown, a main shaft 207 rotates inside the crushing cylinder 102. An upper crushing blade 208 is fixedly mounted on the outer wall of the main shaft 207. The upper crushing blade 208 is disposed inside the crushing cylinder 102. A lower crushing blade 209 is rotatably mounted on the outer wall of the main shaft 207. The lower crushing blade 209 contacts the upper crushing blade 208. Multiple intermediate gears 210 are meshed inside the lower crushing blade 209. A shaft gear is provided on the main shaft 207. The intermediate gears 210 also mesh with the shaft gear on the main shaft 207. When the main shaft 207 rotates, it drives the upper crushing blade 208 and the lower crushing blade 209 simultaneously. The lower crusher blade 209 rotates in the opposite direction due to the transmission of the intermediate gear 210. Due to the transmission ratio setting between the shaft gear, the intermediate gear 210, and the lower crusher blade 209, the lower crusher blade 209 only rotates 135 degrees when the shaft gear rotates one revolution. The purpose of setting the intermediate gear 210 and the lower crusher blade 209 in this way is not only to change the rotation direction of the lower crusher blade 209, but also to change the rotation speed of the lower crusher blade 209 relative to the upper crusher blade 208, so as to prevent the upper crusher blade 208 and the lower crusher blade 209 from rotating synchronously, thereby allowing some materials to pass directly without being crushed.

[0022] like Figures 2 to 6 As shown, a movable rod 211 is movably installed inside the main shaft 207. The outer wall of the movable rod 211 contacts the inner wall of the main shaft 207. A dividing frame 212 is fixedly installed at the end of the movable rod 211 away from the main shaft 207. Multiple stirring plates are provided on the outer side of the dividing frame 212 to stir the material in the crushing cylinder 102. A screen 213 is slidably installed on the dividing frame 212. The screen 213 is slidably connected to the stirring plates. Multiple filter holes are provided on the screen 213 to screen the material. An annular frame 214 is fixedly installed on the outer side of the screen 213. The annular frame 214 is slidably connected to the inner wall of the crushing cylinder 102. The screen 213 and the dividing frame 212 are used to screen and stir the crushed material in the crushing cylinder 102. When the upper blade 208 of the crusher rotates, the screen 213 does not rotate with it. The force of the screen 213 rotation comes from the friction between the screen 213 and the annular frame 214.

[0023] like Figures 2 to 6 As shown, a limiting spring 215 is fixedly installed on the screen 213. The other end of the limiting spring 215 is fixedly installed on the dividing frame 212. When the dividing frame 212 contacts the crushing blade 209, the crushing blade 209 will squeeze the dividing frame 212, thus allowing the dividing frame 212 to slide on the screen 213. The stirring plate on the dividing frame 212 can also be squeezed under the screen 213. In this state, the crushing blade 209 is in close contact with one side of the screen 213, and the crushing blade 209 can crush the material on the screen 213 when it rotates.

[0024] like Figures 1 to 4 As shown, a steel cable 204 is rotatably mounted on the movable rod 211, and the steel cable 204 is disposed inside the main shaft 207. An adjusting frame 105 is also fixedly mounted on one end of the feed box 103 on the crushing cylinder 102. A main frame 201 is slidably mounted on the adjusting frame 105, and an adjusting screw 202 is rotatably mounted on the adjusting frame 105. The adjusting screw 202 is threadedly connected to the main frame 201. Rotating the adjusting screw 202 adjusts the distance between the main frame 201 and the crushing cylinder 102. The main frame 201 is provided with… An electric winch 203 is provided, with one end of the steel cable 204 mounted on it. When the electric winch 203 rotates, the movable rod 211 can be pulled by the steel cable 204 to slide within the main shaft 207. The main frame 201 is rotatably connected to the main shaft 207. When the distance between the main frame 201 and the crushing cylinder 102 changes, the main frame 201 will also slide on the crushing cylinder 102 along with the main shaft 207, thereby changing the position of the upper crushing blade 208 and the lower crushing blade 209 within the crushing cylinder 102 to crush special materials.

[0025] like Figures 1 to 4 As shown, a main motor 206 is also fixedly installed on the main frame 201. A main gear is fixedly installed on the output shaft of the main motor 206. A drive gear is provided at one end of the main shaft 207 outside the crushing cylinder 102. The main gear meshes with the drive gear on the main shaft 207. When the main motor 206 is started, the main shaft 207 can be driven to rotate through the main gear.

[0026] During operation, material is fed into the crushing cylinder 102 through the feed box 103. The sliding cover 104 on the feed box 103 prevents powder from spreading out. When material enters, the main motor 206 starts, causing the upper crushing blade 208 and the lower crushing blade 209 to rotate. The upper and lower crushing blades 208 and 209 rotate in opposite directions and at different speeds; the upper crushing blade 208 rotates faster than the lower crushing blade 209. The lower blade 209 needs to move quickly, and the material will be crushed when it passes through the upper crushing blade 208 and the lower crushing blade 209. The crushed material will fall onto the screen 213. At this time, the screen 213 and the dividing frame 212 do not rotate, but the electric winch 203 rotates back and forth, which causes the screen 213 and the dividing frame 212 to shake up and down inside the crushing cylinder 102 through the steel cable 204 and the movable rod 211. The purpose of this is to make the material accumulated on the screen 213 tumble, allowing some material that can pass through the filter holes to pass through the screen 213. 13. After the material passes through the screen 213, it will fall out of the device from the material outlet on the crushing cylinder 102. When the large particles of material on the screen 213 gradually accumulate to a predetermined amount, 306 will start and rotate. This allows the adjusting screw 202, electric winch 203, and ring frame 214 to move closer to the lower crushing blade 209 via the steel cable 204 and the movable rod 211. During the movement, the dividing frame 212 will come into contact with the lower crushing blade 209, and the dividing frame 212 will be pushed below the screen 213 by the lower crushing blade 209. This allows the rotating crushing blade 209 to crush the large particles remaining on the screen 213. If the rotation speed of 306 is fast, the screen 213 will also move suddenly. Then, the crushing blade 209 will stop after squeezing the dividing frame 212 to its limit position. This causes the large particles on the screen 213 to move towards the feed box 103 due to inertia, so that the large particles can be crushed again by the crushing blade 208 and the crushing blade 209. In this way, the requirement of multiple crushings without producing excessive powder can be achieved.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A solid waste crushing device with a recycling function, comprising a support frame (101), characterized in that: A crushing cylinder (102) providing a crushing chamber is fixedly installed on the support frame (101). A main shaft (207) rotates inside the crushing cylinder (102). An upper crushing blade (208) is fixedly installed on the outer wall of the main shaft (207). The upper crushing blade (208) is disposed inside the crushing cylinder (102). A lower crushing blade (209) is rotatably installed on the outer wall of the main shaft (207). The lower crushing blade (209) contacts the upper crushing blade (208). Multiple intermediate gears (210) are meshed inside the lower crushing blade (209). A shaft gear is provided on the main shaft (207). The intermediate gears (210) are also engaged with the shaft gears on the main shaft (207). The shaft gear meshes, and when the main shaft (207) rotates, it will drive the upper crushing blade (208) and the lower crushing blade (209) to rotate simultaneously. The lower crushing blade (209) will rotate in the opposite direction due to the transmission of the intermediate gear (210). A movable rod (211) is movably installed inside the main shaft (207). The outer wall of the movable rod (211) is in contact with the inner wall of the main shaft (207). A dividing frame (212) is fixedly installed at the end of the movable rod (211) away from the main shaft (207). Multiple stirring plates are provided on the outside of the dividing frame (212) to stir the material in the crushing cylinder (102). A screen (213) is slidably installed on the dividing frame (212).

2. The solid waste pulverizing device with a recycling function according to claim 1, characterized in that: The screen (213) is slidably connected to the stirring plate. The screen (213) is provided with multiple filter holes for screening materials. An annular frame (214) is fixedly installed on the outside of the screen (213). The annular frame (214) is slidably connected to the inner wall of the crushing cylinder (102). The screen (213) and the dividing frame (212) are used in the crushing cylinder (102) to screen and stir the crushed materials. When the upper blade (208) of the crusher rotates, the screen (213) will not rotate together.

3. The solid waste pulverizing device with a recycling function according to claim 1, characterized in that: A limiting spring (215) is fixedly installed on the screen (213). The other end of the limiting spring (215) is fixedly installed on the dividing frame (212). When the dividing frame (212) comes into contact with the crushing blade (209), the crushing blade (209) will squeeze the dividing frame (212), thus allowing the dividing frame (212) to slide on the screen (213).

4. The solid waste pulverizing device with a recycling function according to claim 1, characterized in that: A steel cable (204) is rotatably mounted on the movable rod (211). The steel cable (204) is set inside the main shaft (207). An adjusting frame (105) is also fixedly mounted on one end of the crushing cylinder (102). A main frame (201) is slidably mounted on the adjusting frame (105). An adjusting screw (202) is rotatably mounted on the adjusting frame (105). The adjusting screw (202) is threadedly connected to the main frame (201). Rotating the adjusting screw (202) can adjust the distance between the main frame (201) and the crushing cylinder (102).

5. The solid waste pulverizing device with a recycling function according to claim 4, characterized in that: An electric winch (203) is installed on the main frame (201). One end of the steel cable (204) is installed on the electric winch (203). When the electric winch (203) rotates, the movable rod (211) can be pulled by the steel cable (204) to slide inside the main shaft (207). The main frame (201) is rotatably connected to the main shaft (207). When the distance between the main frame (201) and the crushing cylinder (102) changes, the main frame (201) will also slide on the crushing cylinder (102) with the main shaft (207), thereby changing the position of the upper crushing blade (208) and the lower crushing blade (209) inside the crushing cylinder (102) to crush special materials.

6. The solid waste pulverizing device with a recycling function according to claim 4, characterized in that: A main motor (206) is also fixedly installed on the main frame (201). A main gear is fixedly installed on the output shaft of the main motor (206). A drive gear is provided at one end of the main shaft (207) outside the crushing cylinder (102). The main gear meshes with the drive gear on the main shaft (207). When the main motor (206) is started, the main shaft (207) can be driven to rotate by the main gear.