Grinding equipment for manufacturing superfine sand from waste bricks and tiles

Abstract

The utility model discloses a kind of waste brick manufacturing ultrafine sand's grinding equipment, belong to waste brick processing technical field.A kind of waste brick manufacturing ultrafine sand's grinding equipment, including frame and the roller that is rotationally connected on frame, fixedly connected with drive motor on frame, the output end fixedly connected with belt pulley of drive motor, belt is set on roller and belt pulley;The utility model when roller rotates, sphere and material are tumbled along the inner wall of roller, part sphere and material can enter into lifting groove, with the rotation of roller, can be lifted to height vertex with sphere and material, subsequently fall, and then increase the falling speed of sphere, effectively improve the efficiency of grinding, prismatic can produce blocking and guiding effect to the movement of sphere and material, utilize the synergistic effect of gravity and centrifugal force, promote material to be evenly distributed in horizontal direction, change material movement direction simultaneously, promote sphere and material to fully collide.

Description

Technical Field

[0001] This utility model relates to the field of waste brick and tile processing technology, and in particular to a grinding device for manufacturing ultrafine sand from waste bricks and tiles. Background Technology

[0002] The core objective of recycling waste bricks and tiles is to achieve resource recovery and environmental protection from construction waste. Brick and tile waste generated from traditional building demolition occupies land for extended periods and is difficult to degrade naturally. Through reprocessing, it can be transformed into new building material raw materials (such as recycled aggregates and ultrafine sand), significantly reducing the ecological damage caused by natural sand and gravel mining. This process aligns with the concept of a circular economy, reducing landfill pressure and pollution risks while saving on raw material costs and energy consumption.

[0003] The sand mill is the core equipment for grinding waste bricks and tiles into ultrafine sand. It achieves micron-level crushing through mechanical energy conversion. The equipment uses high-density ceramic or metal media (such as zirconium balls or steel balls) in a rotating grinding cylinder as the core. Under high-speed stirring, it generates strong collision and shearing forces on the pre-crushed brick and tile particles, so that the particle size of the material is continuously refined to below 75 microns.

[0004] In existing technology, the material and steel balls rotate inside the cylinder, and the material is crushed by the interaction between the steel balls and the material. However, because the centrifugal force of the cylinder has limited lifting capacity for the material, the steel balls and material will fall due to gravity before reaching the top. Under these circumstances, the maximum co-grinding speed cannot be achieved. Furthermore, because some inner walls of the cylinder are relatively flat, the contact between the balls and the material is not sufficient or uniform when they move inside the cylinder, resulting in low grinding efficiency. Therefore, we urgently need a grinding equipment for producing ultrafine sand from waste bricks and tiles to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the prior art where steel balls fall downwards before reaching the top of the drum, and where the relatively flat drum wall prevents the balls and materials from making sufficient and uniform contact. Therefore, this invention proposes a grinding device for producing ultrafine sand from waste bricks and tiles.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A grinding device for producing ultrafine sand from waste bricks and tiles includes a frame and a drum rotatably connected to the frame. A drive motor is fixedly connected to the frame, and a pulley is fixedly connected to the output end of the drive motor. A belt is fitted onto the drum and the pulley. When the drive motor is working, the pulley and the drum rotate synchronously. The device also includes: a liner fixedly installed inside the drum, a sound-absorbing plate provided between the liner and the inner wall of the drum, and at least two sets of lifting grooves for lifting materials are formed on the liner, with the lifting grooves arranged in a ring at equal intervals on the liner; and multiple sets of prisms fixedly installed on the liner, the prisms being located between the two sets of lifting grooves and arranged at equal intervals along the axis of the drum.

[0007] In order to change the movement path of the sphere and the material, preferably, the liner plate and both sides of the prism have lifting parts for changing the movement trajectory of the material, and the cross-sectional shape of the lifting parts is arc-shaped.

[0008] In order to change the trajectory of the ball and the material, the angle formed between the lifting part and the surface of the liner is further 30°-45°.

[0009] To ensure more uniform contact between the sphere and the material, preferably, the height of the prism is in the range of 10-15mm, and the spacing between the two sets of prisms is in the range of 8-15cm.

[0010] For material feeding and discharging, preferably, both ends of the roller are provided with inlet ports for feeding, and the roller is fixedly connected to a discharge pipe for discharging, and a filter plate for screening is detachably installed inside the discharge pipe.

[0011] To improve the noise reduction and cushioning function of the equipment, preferably, the noise reduction plate is made of rubber.

[0012] Compared with the prior art, this utility model provides a grinding device for manufacturing ultrafine sand from waste bricks and tiles, which has the following beneficial effects: 1. This grinding equipment for producing ultrafine sand from waste bricks and tiles, through the setting of lifting grooves and prisms, allows the balls and materials to tumble along the inner wall of the drum when it rotates. Some balls and materials will enter the lifting grooves. As the drum rotates, the balls and materials can be lifted to the highest point and then fall, thereby increasing the falling speed of the balls and effectively improving the grinding efficiency. The prisms can block and guide the movement of the balls and materials. By utilizing the combined effect of gravity and centrifugal force, the material is evenly distributed in the horizontal direction, while changing the direction of material movement, so as to promote full collision between the balls and materials.

[0013] 2. The grinding equipment for producing ultrafine sand from waste bricks and tiles, through the setting of a soundproof plate, which is made of rubber, can provide shock absorption and sound insulation effects, thereby effectively absorbing and consuming the vibration energy of the liner and roller, and reducing the noise during equipment operation.

[0014] 3. This grinding equipment for producing ultrafine sand from waste bricks and tiles, through the setting of the lifting part and the horizontal setting of the drum, can effectively change the movement trajectory of the material in the drum, allowing it to move randomly, thereby effectively increasing the contact area and contact frequency between the ball and the material.

[0015] The parts of this device not described herein are the same as or can be implemented using existing technologies. This invention improves the grinding speed between the ball and the material, and increases the contact between the ball and the material, making the contact more thorough and uniform, thereby improving the grinding efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a grinding device for producing ultrafine sand from waste bricks and tiles, as proposed in this utility model. Figure 2 This is a partial cross-sectional structural diagram of a grinding device for producing ultrafine sand from waste bricks and tiles, as proposed in this utility model. Figure 3 A schematic diagram of the drum structure of a grinding device for producing ultrafine sand from waste bricks and tiles, as proposed in this utility model. Figure 1 ; Figure 4 A schematic diagram of the drum structure of a grinding device for producing ultrafine sand from waste bricks and tiles, as proposed in this utility model. Figure 2 .

[0017] In the diagram: 1. Frame; 2. Roller; 3. Drive motor; 4. Pulley; 5. Liner; 6. Soundproof plate; 7. Lifting groove; 8. Prism; 9. Feed inlet; 10. Discharge pipe; 11. Filter plate. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Example: Reference Figures 1-4 A grinding device for producing ultrafine sand from waste bricks and tiles includes a frame 1 and a roller 2 rotatably connected to the frame 1. Both ends of the roller 2 are provided with feed inlets 9 for material feeding. A discharge pipe 10 is fixedly connected to the roller 2 for material discharge, and a filter plate 11 for screening is detachably installed inside the discharge pipe 10. The roller 2 is horizontally mounted on the frame 1 via high-precision self-aligning roller bearing seats at both ends. A drive motor 3 is fixedly connected to the frame 1, and a pulley 4 is fixedly connected to the output end of the drive motor 3. A belt is fitted onto the roller 2 and the pulley 4. Here, the operation... The operator puts the material and steel balls into the drum 2 through the feed port 9. The discharge valve on the discharge pipe 10 is closed. At this time, the drive motor 3 is started, and the drum 2 is driven to rotate through the belt on the pulley 4. Since the belt is also sleeved on the drum 2, the drum 2 can rotate when the pulley 4 rotates. When it is necessary to discharge the material, simply open the discharge valve and the material in the drum 2 will be discharged. Due to the presence of the filter plate 11, the material that meets the size can be discharged, and the material that does not reach the required size continues to be ground, thereby improving the production and processing accuracy.

[0021] It also includes a liner 5 fixedly installed inside the drum 2, and a sound-absorbing plate 6 is provided between the liner 5 and the inner wall of the drum 2. The sound-absorbing plate 6 is made of rubber. Here, the sound-absorbing plate 6 made of rubber can provide shock absorption and sound insulation, thereby effectively absorbing and consuming the vibration energy of the liner 5 and the drum 2, and reducing the noise during equipment operation.

[0022] The liner 5 has at least two sets of lifting grooves 7 for lifting materials, and the lifting grooves 7 are arranged in a ring at equal intervals on the liner 5. Multiple sets of prisms 8 are fixedly installed on the liner 5, with the prisms 8 located between the two sets of lifting grooves 7. The multiple sets of prisms 8 are arranged at equal intervals along the axis of the roller 2. The height of the prisms 8 ranges from 10 to 15 mm, and the distance between the two sets of prisms 8 ranges from 8 to 15 cm. Here, the height is preferably 12 mm, and the distance is preferably 10 cm. Lifting parts for changing the movement trajectory of materials extend from the liner 5 on both sides of the prisms 8. The cross-sectional shape of the lifting parts is arc-shaped, and the angle formed between the lifting parts and the surface of the liner 5 ranges from 30° to 45°. Here, 45° is preferred, which can increase the movement height of the ball and the material, and when the ball falls, it can make better contact with the material.

[0023] Here, when the drum 2 rotates, the balls and materials tumble along the inner wall of the drum 2. Some of the balls and materials enter the lifting groove 7. As the drum 2 rotates, the balls and materials can be lifted to the highest point and then fall, thereby increasing the falling speed of the balls and effectively improving the grinding efficiency. The prism 8 can block and guide the movement of the balls and materials. By utilizing the combined effect of gravity and centrifugal force, the materials are evenly distributed in the horizontal direction, while changing the direction of material movement, so that the balls and materials can fully collide. Combined with the setting of the lifting part and the horizontal setting of the drum 2, the movement trajectory of the materials in the drum 2 can be effectively changed, allowing them to move randomly, thereby effectively increasing the contact area and contact frequency between the balls and materials.

[0024] In this invention, the operator places the material and steel balls into the drum 2 through the feed inlet 9. At this time, the drive motor 3 is started and connected to the belt on the pulley 4 connected to the drum 2, thereby driving the drum 2 to rotate. The balls and materials flow along the inner wall of the drum 2 for grinding. Some balls and materials will fall into the lifting groove 7. As the drum 2 rotates, the balls and materials in the lifting groove 7 can be moved to the highest point and then fall down, thereby improving the grinding efficiency of the balls and materials. In conjunction with the prism 8 and the lifting part, the movement trajectory of the balls and materials is changed in conjunction with the rotation of the drum 2, thereby improving the contact between the two. After grinding is completed, the discharge valve on the discharge pipe 10 is opened. With the setting of the filter plate 11, qualified materials can be discharged, while materials that do not meet the size requirements continue to be ground in the drum 2.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A grinding device for producing ultrafine sand from waste bricks and tiles, comprising a frame (1) and a roller (2) rotatably connected to the frame (1), wherein a drive motor (3) is fixedly connected to the frame (1), and a pulley (4) is fixedly connected to the output end of the drive motor (3), and a belt is fitted onto the roller (2) and the pulley (4), wherein when the drive motor (3) is working, the pulley (4) and the roller (2) rotate synchronously, characterized in that, Also includes: A liner (5) is fixedly installed inside the drum (2). A soundproof plate (6) is provided between the liner (5) and the inner wall of the drum (2). At least two sets of lifting grooves (7) for lifting materials are provided on the liner (5), and the lifting grooves (7) are arranged in a ring at equal intervals on the liner (5). Multiple sets of prisms (8) are fixedly installed on the liner (5). The prisms (8) are located between two sets of lifting grooves (7). The multiple sets of prisms (8) are arranged at equal intervals along the axis of the roller (2). The liner (5) has lifting parts extending on both sides of the prism (8) for changing the trajectory of the material movement. The cross-sectional shape of the lifting parts is arc-shaped. The angle between the lifting part and the surface of the liner (5) is in the range of 30°-45°.

2. The grinding equipment for producing ultrafine sand from waste bricks and tiles according to claim 1, characterized in that, The height of the prism (8) ranges from 10 to 15 mm, and the distance between the two sets of prisms (8) ranges from 8 to 15 cm.

3. The grinding equipment for producing ultrafine sand from waste bricks and tiles according to claim 1, characterized in that, Both ends of the roller (2) are provided with inlet ports (9) for feeding. A discharge pipe (10) for discharging is fixedly connected to the roller (2), and a filter plate (11) for screening is disassembled and installed inside the discharge pipe (10).

4. The grinding equipment for producing ultrafine sand from waste bricks and tiles according to claim 1, characterized in that, The material of the soundproof panel (6) is rubber.

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