A grinding device for waste tire rubber powder

Abstract

This utility model relates to the technical field of waste tire recycling equipment, and discloses a grinding device for waste tire rubber powder, including a grinding body, a feed inlet, a discharge conveyor belt, a first drive mechanism, a second drive mechanism, a return pipe, and a return auger. The feed inlet is located at the top of the grinding body, the discharge conveyor belt is installed at the bottom inside the grinding body, the first drive mechanism is installed on one side of the grinding body, the second drive mechanism is installed below the first drive mechanism, the return pipe is installed on the other side of the grinding body, one end of the return auger is connected to the return pipe, and the other end of the return auger is located on one side of the feed inlet. This waste tire rubber powder grinding device grinds tire blocks using grinding rollers. After grinding, the tires fall onto a screening plate, where large rubber particles and rubber powder are separated, improving the separation efficiency of rubber powder and particles and reducing the noise generated during equipment operation.

Description

Technical Field

[0001] This utility model relates to the technical field of waste tire recycling equipment, specifically a grinding device for waste tire rubber powder. Background Technology

[0002] With the rapid development of the automotive industry, the global annual output of waste tires is huge. Because waste tires are difficult to degrade naturally, they are known as "black pollution." Their recycling has become an important issue in the field of environmental protection. Rubber powder, as the core product of waste tire recycling, has good elasticity, wear resistance and chemical stability, and is widely used in modified asphalt pavement, rubber seals, sound insulation materials and other fields.

[0003] According to the authorization announcement number CN223071746U, a grinding device for waste tire rubber powder is disclosed, including a grinding device body. A support leg is fixedly connected to the bottom of the grinding device body, and a base is fixedly connected to the bottom of the support leg. A discharge port is fixedly connected to the bottom of the grinding device body, and a screening mechanism is arranged below the discharge port. A vibration mechanism is arranged at the bottom of the screening mechanism. The screening mechanism includes a screening component, a discharge component, a support component, and a reset component. The aforementioned grinding device for waste tire rubber powder, through the screening mechanism, with the screening plate set inside the screening box, screens the rubber powder entering the screening box through the discharge port, allowing qualified rubber powder to be separated from large, unqualified rubber particles. This facilitates the secondary processing of unqualified rubber particles while recycling the rubber powder, eliminating the need for multiple transfers and making it convenient for workers to use.

[0004] However, the above-mentioned device still has shortcomings. Although the motor drives the screen plate to swing up and down to separate the rubber powder and large rubber particles, the efficiency is low during the screening process. Frequent lifting of the screen plate can also easily damage the screening parts and affect the use of the grinding equipment. Utility Model Content

[0005] The purpose of this invention is to provide a grinding device for waste tire rubber powder to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a grinding device for waste tire rubber powder, comprising a grinding body, a feed inlet, a discharge conveyor belt, a first drive mechanism, a second drive mechanism, a return pipe, and a return auger. The feed inlet is located at the top of the grinding body, the discharge conveyor belt is installed at the bottom inside the grinding body, the first drive mechanism is installed on one side of the grinding body, the second drive mechanism is installed below the first drive mechanism, the return pipe is installed on the other side of the grinding body, one end of the return auger is connected to the return pipe, and the other end of the return auger is located on one side of the feed inlet.

[0007] The grinding body includes a housing, a guide plate, a grinding roller, a screening plate, mounting blocks, and a rotating roller. The guide plate is located on both sides of the top of the housing. The grinding roller is rotatably connected to the inside of the housing. The screening plate is located inside the housing and below the grinding roller. The mounting blocks are fixedly connected to the top of the screening plate. The rotating roller is rotatably mounted in the middle of the two mounting blocks and above the screening plate. A first drive mechanism drives the grinding roller to rotate, and a second drive mechanism drives the rotating roller to rotate. The grinding roller grinds the tire block, and the ground material falls onto the screening plate. The screening plate separates large rubber particles and rubber powder, improving the separation efficiency of rubber powder and particles and reducing the noise generated by the equipment operation.

[0008] Preferably, the rotating roller includes a roller body, a spiral blade, and a striking rod. The roller body is rotatably connected to the inside of the housing, the spiral blade is fixedly connected to the outside of the roller body, and the striking rod is fixedly connected to both ends of the roller body. The spiral blade can quickly convey the granular rubber, facilitating secondary grinding of the granular rubber. The striking rod, through the rotation of the roller body, strikes and collides with the screening plate, causing the screening plate to vibrate, thus causing the rubber powder adhering to the screening plate to fall off, ensuring the screening effect.

[0009] Preferably, the return pipe includes a pipe body, an inclined plate, and a connecting pipe. The pipe body is fixedly connected to one side of the housing, the inclined plate is disposed at the bottom of the pipe body, the connecting pipe is fixedly connected to one end of the bottom of the pipe body, and the other end of the connecting pipe is connected to the feed pipe of the return auger. The inclined plate allows the rubber blocks discharged from the grinding body to quickly accumulate to the bottom, thereby entering the return auger and being reintroduced into the grinding body for secondary grinding.

[0010] Preferably, the top of the mounting block is set as an inclined surface to facilitate the entry of the ground particles and adhesive powder into the conveying and screening area of ​​the rotating roller.

[0011] Preferably, the guide plate, mounting block and inner wall of the housing are all coated with an anti-sticking coating to prevent adhesive powder or rubber particles from sticking together and affecting grinding production.

[0012] Preferably, there are two rotating rollers to ensure efficient conveying and screening.

[0013] Preferably, a connecting rod is provided on one side of the housing to ensure a stable connection between the return auger and the grinding body, thereby ensuring stable operation of the secondary grinding process.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. The grinding device for waste tire rubber powder grinds tire blocks with grinding rollers. After grinding, the tire blocks fall onto a screening plate, where large rubber particles and rubber powder are separated, improving the separation efficiency of rubber powder and particles and reducing the noise generated by the equipment operation.

[0015] 2. The grinding device for waste tire rubber powder uses an inclined plate to allow the rubber blocks discharged from the grinding body to quickly accumulate to the bottom, and then enter the return auger to be added back into the grinding body for secondary grinding. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the grinding body of this utility model; Figure 3 This is a schematic diagram of the structure of the rotating roller of this utility model; Figure 4 This is a schematic diagram of the structure of the return pipe of this utility model.

[0017] In the diagram: 1. Grinding body; 2. Feed inlet; 3. Discharge conveyor belt; 4. First drive mechanism; 5. Second drive mechanism; 6. Return pipe; 7. Return auger; 101. Box body; 102. Guide plate; 103. Grinding roller; 104. Screening plate; 105. Mounting block; 106. Rotating roller; 110. Roller body; 111. Spiral blade; 112. Striking rod; 601. Pipe body; 602. Inclined plate; 603. Connecting pipe. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 The present invention provides the following technical solution: a grinding device for waste tire rubber powder, comprising a grinding body 1, a feed inlet 2, a discharge conveyor belt 3, a first drive mechanism 4, a second drive mechanism 5, a return pipe 6, and a return auger 7. The feed inlet 2 is located at the top of the grinding body 1, the discharge conveyor belt 3 is installed at the bottom inside the grinding body 1, the first drive mechanism 4 is installed on one side of the grinding body 1, the second drive mechanism 5 is installed below the first drive mechanism 4, the return pipe 6 is installed on the other side of the grinding body 1, one end of the return auger 7 is connected to the return pipe 6, and the other end of the return auger 7 is located on one side of the feed inlet 2.

[0020] The grinding body 1 includes a housing 101, a guide plate 102, a grinding roller 103, a screening plate 104, mounting blocks 105, and a rotating roller 106. The guide plate 102 is disposed on both sides of the top of the housing 101. The grinding roller 103 is rotatably connected to the inside of the housing 101. The screening plate 104 is disposed inside the housing 101 and located below the grinding roller 103. The mounting blocks 105 are fixedly connected to the top of the screening plate 104. The rotating roller 106 is rotatably mounted in the middle of the two mounting blocks 105 and located above the screening plate 104. A first drive mechanism 4 drives the grinding roller 103 to rotate, and a second drive mechanism 5 drives the rotating roller 106 to rotate. The grinding roller 103 grinds the tire block. The material then falls onto the screening plate 104, where large rubber particles and rubber powder are separated, improving the separation efficiency and reducing noise generated during equipment operation. The top of the mounting block 105 is sloped to facilitate the entry of the grinding particles and rubber powder into the conveying and screening area of ​​the rotating roller 106. The guide plate 102, mounting block 105, and inner wall of the box 101 are all coated with anti-sticking coating to prevent rubber powder or rubber particles from sticking together and affecting grinding production. There are two rotating rollers 106 to ensure efficient conveying and screening. A connecting rod is provided on one side of the box 101 to ensure a stable connection between the return auger 7 and the grinding body 1, ensuring stable operation of secondary grinding.

[0021] The rotating roller 106 includes a roller body 110, a spiral blade 111, and an impact rod 112. The roller body 110 is rotatably connected to the inside of the housing 101, the spiral blade 111 is fixedly connected to the outside of the roller body 110, and the impact rod 112 is fixedly connected to both ends of the roller body 110. The spiral blade 111 can quickly convey the granular rubber, which is convenient for secondary grinding of the granular rubber. The impact rod 112, through the rotation of the roller body 110, strikes and collides with the screening plate 104, causing the screening plate 104 to vibrate, so that the rubber powder adhering to the screening plate 104 falls off, ensuring the screening effect.

[0022] The return pipe 6 includes a pipe body 601, an inclined plate 602, and a connecting pipe 603. The pipe body 601 is fixedly connected to one side of the housing 101. The inclined plate 602 is located at the bottom of the pipe body 601. The connecting pipe 603 is fixedly connected to one end of the bottom of the pipe body 601. The other end of the connecting pipe 603 is connected to the feed pipe of the return auger 7. The inclined plate 602 allows the rubber blocks discharged from the grinding body 1 to quickly accumulate to the bottom, thereby entering the return auger 7 and being reintroduced into the interior of the grinding body 1 for secondary grinding.

[0023] In use, waste tire rubber is added into the grinding body 1 through the guide plate 102. The first drive mechanism 4 drives the grinding roller 103 to rotate, grinding and crushing the waste tire rubber into rubber powder or granular rubber. Then the rubber powder or granular rubber falls onto the screening plate 104. The second drive mechanism 5 drives the rotating roller 106 to rotate, causing the spiral blade 111 to move the rubber powder and granular rubber. The rubber powder falls onto the discharge conveyor belt 3 through the screening plate 104 and is transported to the next production stage. The granular rubber is fed into the return auger 7 through the return pipe 6, and then fed back into the grinding roller 103 through the return auger 7 for secondary grinding, ensuring that the rubber particles are ground into qualified rubber powder.

[0024] All electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding device for waste tire rubber powder, comprising a grinding body (1), a feed inlet (2), a discharge conveyor belt (3), a first drive mechanism (4), a second drive mechanism (5), a return pipe (6), and a return auger (7), characterized in that: The feed inlet (2) is located at the top of the grinding body (1), the discharge conveyor belt (3) is installed at the bottom inside the grinding body (1), the first drive mechanism (4) is installed on one side of the grinding body (1), the second drive mechanism (5) is installed below the first drive mechanism (4), the return pipe (6) is installed on the other side of the grinding body (1), one end of the return auger (7) is connected to the return pipe (6), and the other end of the return auger (7) is located on one side of the feed inlet (2); The grinding body (1) includes a box (101), a guide plate (102), a grinding roller (103), a sieve plate (104), a mounting block (105), and a rotating roller (106). The guide plate (102) is disposed on both sides of the top of the box (101). The grinding roller (103) is rotatably connected to the inside of the box (101). The sieve plate (104) is disposed inside the box (101) and located below the grinding roller (103). The mounting block (105) is fixedly connected to the top of the sieve plate (104). The rotating roller (106) is rotatably mounted in the middle position between the two mounting blocks (105) and located above the sieve plate (104).

2. The grinding device for waste tire rubber powder according to claim 1, characterized in that: The rotating roller (106) includes a roller body (110), a spiral blade (111), and a striking rod (112). The roller body (110) is rotatably connected to the inside of the housing (101), the spiral blade (111) is fixedly connected to the outside of the roller body (110), and the striking rod (112) is fixedly connected to both ends of the roller body (110).

3. The grinding device for waste tire rubber powder according to claim 1, characterized in that: The return pipe (6) includes a pipe body (601), an inclined plate (602) and a connecting pipe (603). The pipe body (601) is fixedly connected to one side of the box (101). The inclined plate (602) is located at the bottom of the pipe body (601). The connecting pipe (603) is fixedly connected to one end of the bottom of the pipe body (601). The other end of the connecting pipe (603) is connected to the feed pipe of the return auger (7).

4. The grinding device for waste tire rubber powder according to claim 1, characterized in that: The top of the mounting block (105) is set as a slope.

5. The grinding device for waste tire rubber powder according to claim 1, characterized in that: The inner walls of the guide plate (102), mounting block (105) and box (101) are all coated with an anti-stick coating.

6. The grinding device for waste tire rubber powder according to claim 1, characterized in that: The number of rotating rollers (106) is two.

7. The grinding device for waste tire rubber powder according to claim 1, characterized in that: A connecting rod is provided on one side of the box (101).

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