Chemical raw material grinding device with screening function

Abstract

The utility model discloses a chemical raw material grinding device with a screening function, which belongs to the technical field of chemical production and comprises a grinding bin, a first sieve plate is fixedly mounted in the center between the inner walls of the grinding bin, and a second sieve plate is arranged between the inner walls of the grinding bin and below the first sieve plate. And the second sieve plate is designed in an inclined manner. According to the chemical raw material grinding device with the screening function, a second screen plate, a first rotating rod and a protruding block are arranged, the protruding block continuously pushes the second screen plate, and meanwhile the protruding block is matched with a compression spring to make the second screen plate shake; the chemical raw materials meeting the screening condition of the second screen plate penetrate through a plurality of holes in the upper portion of the second screen plate to fall into the second discharging port to be collected, the chemical raw materials not meeting the screening condition of the second screen plate can be discharged from the first discharging port along the inclined face of the second screen plate to be collected, and the raw materials of different specifications can be distinguished and collected respectively. And the precision of the product granularity is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of chemical production technology, specifically a chemical raw material grinding device with screening function. Background Technology

[0002] With the continuous development of the chemical industry, the processing requirements for chemical raw materials are becoming increasingly stringent. Chemical raw materials play a crucial role in the production of many products. In order to meet the specific needs of these different industries, chemical raw materials often need to be finely processed, and grinding is one of the important steps. Grinded chemical raw materials can have more suitable particle size and more uniform particle distribution, thus better adapting to subsequent production processes. Traditional grinding equipment mostly focuses on grinding raw materials into smaller particles, but there is no effective screening mechanism for the ground particles. This can lead to uneven particle size in the ground products, which does not meet the requirements of some high-precision chemical production. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides a chemical raw material grinding device with screening function, which solves the problem that most traditional grinding devices only focus on grinding raw materials into smaller particles, but do not have an effective screening mechanism for the ground particles. This leads to the possibility of uneven particle size in the ground product, which does not meet the requirements of some high-precision chemical production.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a chemical raw material grinding device with screening function, comprising a grinding chamber, a first sieve plate fixedly installed at its center between the inner walls of the grinding chamber, a second sieve plate provided below the first sieve plate between the inner walls of the grinding chamber, the second sieve plate being of an inclined design, two sets of support blocks fixedly installed at both ends of the second sieve plate on the inner walls of both sides of the grinding chamber, two support rods fixedly connected near their ends between corresponding two support blocks, the two support rods penetrating one end of the second sieve plate, two compression springs sleeved on the outer walls of the support rods on both sides of the second sieve plate, a control motor fixedly installed on one side of the grinding chamber, a first rotating rod rotatably connected between the inner walls of the grinding chamber below the second sieve plate, the output end of the control motor being connected to one end of the first rotating rod, and two protrusions fixedly installed on the outer wall of the first rotating rod.

[0005] As a further embodiment of this utility model: a drive motor is fixedly installed at the center of the top of the grinding chamber, the output end of the drive motor passes through the top of the grinding chamber and is fixedly installed with a second rotating rod, a support box is rotatably connected at the center of the first sieve plate, and the end of the second rotating rod away from the drive motor is connected to the top of the support box.

[0006] As a further embodiment of this utility model: four grinding rollers are rotatably connected to the outer wall of the support box. The four grinding rollers are respectively oriented in four directions and distributed in a cross shape. The grinding rollers are attached to the top of the first sieve plate. One end of the grinding roller passes through the support box and the end is fixedly connected to a driven gear. The number of driven gears is four.

[0007] As a further embodiment of this utility model: an output motor is fixedly installed at the bottom of the support box, the output end of the output motor passes through the bottom of the support box and is fixedly connected to a drive gear at the end, and the drive gear meshes with four driven gears.

[0008] As a further embodiment of this utility model: the top of the grinding chamber is provided with a feed inlet, and the outlet of the feed inlet is directly opposite the first sieve plate.

[0009] As a further embodiment of this utility model: a first discharge port is provided on one side of the grinding chamber and at a position corresponding to the inclined direction of the second sieve plate, and a second discharge port is provided at the bottom of the grinding chamber.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This chemical raw material grinding device with screening function, by setting a first screen plate, a second screen plate, a first rotating rod, and a protrusion, allows the chemical raw material to pass through several holes on the first screen plate and fall onto the second screen plate during grinding. The protrusion rotates under the action of the first rotating rod, continuously pushing the second screen plate. At the same time, the protrusion cooperates with the compression spring to make the second screen plate shake. During the shaking process, the chemical raw material that meets the screening conditions of the second screen plate passes through several holes on the second screen plate and falls into the second discharge port for collection. The chemical raw material that does not meet the screening conditions of the second screen plate will be discharged from the first discharge port along the inclined surface of the second screen plate for collection. In this way, raw materials of different specifications can be distinguished and collected separately, effectively improving the accuracy of product particle size.

[0012] 2. This chemical raw material grinding device with screening function, by setting up a first rotating rod, protrusions, support rods and compression springs, controls the motor to drive the first rotating rod to rotate when screening chemical raw materials on the second screen plate. During the rotation of the first rotating rod, the two protrusions on its outer wall rotate. The protrusions intermittently strike the second screen plate from below, causing the second screen plate to slide on the outer wall of the two sets of support rods and continuously squeeze the compression springs on the outer wall of the support rods. After being squeezed, the compression springs rebound, causing the second screen plate to shake continuously. In this way, the chemical raw materials are prevented from being stationary above the second screen plate, which would cause the holes above the second screen plate to become blocked, thus improving the practicality of the device. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a cross-sectional structural diagram of the grinding chamber of this utility model;

[0015] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0016] Figure 4 This is a schematic diagram showing the positional relationship between the first sieve plate and the grinding roller of this utility model;

[0017] Figure 5 This utility model Figure 4 Enlarged structural diagram at point B;

[0018] In the diagram: 1. Grinding chamber; 2. First sieve plate; 3. Second sieve plate; 4. Support block; 5. Support rod; 6. Compression spring; 7. Control motor; 8. First rotating rod; 9. Protrusion; 10. Drive motor; 11. Second rotating rod; 12. Support box; 13. Grinding roller; 14. Driven gear; 15. Output motor; 16. Drive gear; 17. Feed inlet; 18. First discharge outlet; 19. Second discharge outlet. Detailed Implementation

[0019] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0020] like Figures 1-5As shown, this utility model provides a technical solution: a chemical raw material grinding device with screening function, including a grinding chamber 1. A first screen plate 2 is fixedly installed at the center of the inner wall of the grinding chamber 1. The top of the grinding chamber 1 is provided with a feed inlet 17, and the outlet of the feed inlet 17 is directly opposite the first screen plate 2. A second screen plate 3 is provided below the first screen plate 2 on the inner wall of the grinding chamber 1. The second screen plate 3 is inclined. The inclined design of the second screen plate 3 allows the chemical raw materials to move along the inclined surface of the second screen plate 3 according to their own particle size and gravity during the screening process, ensuring that larger particles that do not meet the screening conditions of the second screen plate 3 can be smoothly discharged from the first discharge port 18 for collection. The first discharge port 18 is opened on one side of the grinding chamber 1 at a position corresponding to the inclined direction of the second screen plate 3, and the bottom of the grinding chamber 1 is provided with a second discharge port 19. The design of the first discharge port 18 and the second discharge port 19 can classify and collect chemical raw materials of different particle sizes. This classification and collection method helps to improve the controllability of the entire grinding and screening process. Two sets of support blocks 4 are fixedly installed on the inner walls of both sides of the grinding chamber 1 at both ends of the second sieve plate 3. Two support rods 5 are fixedly connected to the corresponding two support blocks 4 near their ends. The two support rods 5 pass through one end of the second sieve plate 3. Two compression springs 6 are sleeved on the outer walls of the support rods 5 on both sides of the second sieve plate 3. Because of the compression springs 6, when the second sieve plate 3 is screening chemical raw materials, the protrusions 9 intermittently push the second sieve plate 3 from below. The second sieve plate 3 continuously squeezes the compression springs 6 on the outer walls of the support rods 5. The springs 6 rebound after being squeezed, causing the second sieve plate 3 to shake. The screening efficiency of the second screen plate 3 is effectively improved. A control motor 7 is fixedly installed on one side of the grinding chamber 1. A first rotating rod 8 is rotatably connected between the inner walls of the grinding chamber 1 and the bottom of the second screen plate 3. The output end of the control motor 7 is connected to one end of the first rotating rod 8. Two protrusions 9 are fixedly installed on the outer wall of the first rotating rod 8. Through the cooperation between the first rotating rod 8 and the protrusions 9, the control motor 7 drives the first rotating rod 8 to rotate. The protrusions 9 rotate accordingly and intermittently push the second screen plate 3. At the same time, they work together with the compression spring 6 to make the second screen plate 3 shake. This shaking increases the screening efficiency and avoids the raw materials from agglomerating and causing the holes above the second screen plate 3 to become blocked.

[0021] A drive motor 10 is fixedly installed at the center of the top of the grinding chamber 1. The output end of the drive motor 10 passes through the top of the grinding chamber 1 and is fixedly installed with a second rotating rod 11. A support box 12 is rotatably connected to the center of the first screen plate 2. The end of the second rotating rod 11 away from the drive motor 10 is connected to the top of the support box 12. Four grinding rollers 13 are rotatably connected to the outer wall of the support box 12. The four grinding rollers 13 are arranged in a cross shape facing four directions. The grinding rollers 13 are attached to the top of the first screen plate 2. One end of the grinding roller 13 passes through the support box 12 and is fixedly connected to a driven gear 14. There are four driven gears 14. An output motor 15 is fixedly installed at the bottom of the support box 12. The output end of the output motor 15 passes through the bottom of the support box 12 and is fixedly connected to a driving gear 16. The driving gear 16 meshes with the four driven gears 14. Through the cooperation between the second rotating rod 11 and the grinding roller 13, the drive motor 10 drives the support box 12 to rotate via the second rotating rod 11. During the rotation of the support box 12, the output motor 15 drives four driven gears 14 to rotate below the support box 12 via the drive gear 16. The four driven gears 14 drive the four grinding rollers 13 to rotate respectively, so that the grinding rollers 13 can not only rotate and grind on their own above the first screen plate 2, but also change their grinding position as the support box 12 rotates. This coordinated movement further improves the uniformity and comprehensiveness of grinding.

[0022] The working principle of this utility model is as follows: When using this device, chemical raw materials are conveyed through the feed inlet 17 to the top of the first sieve plate 2 inside the grinding chamber 1. When the chemical raw materials are above the first sieve plate 2, the output motor 15 drives four driven gears 14 to rotate through the drive gear 16. The four driven gears 14 drive four grinding rollers 13 to rotate. At the same time, the drive motor 10 drives the second rotating rod 11 to rotate. The second rotating rod 11 drives the support box 12 to rotate at the center position of the first sieve plate 2, so that the four grinding rollers 13 rotate and grind above the first sieve plate 2. During the grinding process, the chemical raw materials that meet the screening conditions of the first sieve plate 2 pass through the holes above the first sieve plate 2. The material falls above the second screen plate 3, and the control motor 7 drives the first rotating rod 8 to rotate. The first rotating rod 8 intermittently pushes the second screen plate 3 from below through two protrusions 9 on its outer wall, causing the second screen plate 3 to slide and squeeze several compression springs 6 on the outer wall of the support rod 5. After being squeezed, the compression springs 6 rebound and cause the second screen plate 3 to vibrate. This allows the chemical raw materials that meet the screening conditions above the second screen plate 3 to pass through the holes above the second screen plate 3 and fall into the second discharge port 19 for collection. The chemical raw materials that do not meet the screening conditions of the second screen plate 3 are discharged from the first discharge port 18 along the inclined surface of the second screen plate 3 for collection. This allows the device to be used.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A chemical raw material grinding device with screening function, comprising a grinding chamber (1), characterized in that: A first sieve plate (2) is fixedly installed at the center of the inner wall of the grinding chamber (1). A second sieve plate (3) is provided below the first sieve plate (2) on the inner wall of the grinding chamber (1). The second sieve plate (3) is inclined. Two sets of support blocks (4) are fixedly installed at both ends of the second sieve plate (3) on the inner walls of both sides of the grinding chamber (1). Two support rods (5) are fixedly connected to the corresponding two support blocks (4) near their ends. The two support rods (5) pass through one end of the second sieve plate (3). Two compression springs (6) are sleeved on the outer walls of the support rods (5) on both sides of the second sieve plate (3). A control motor (7) is fixedly installed on one side of the grinding chamber (1). A first rotating rod (8) is rotatably connected to the inner wall of the grinding chamber (1) below the second sieve plate (3). The output end of the control motor (7) is connected to one end of the first rotating rod (8). Two protrusions (9) are fixedly installed on the outer wall of the first rotating rod (8).

2. The chemical raw material grinding device with screening function according to claim 1, characterized in that: A drive motor (10) is fixedly installed at the top center of the grinding chamber (1). The output end of the drive motor (10) passes through the top of the grinding chamber (1) and is fixedly installed with a second rotating rod (11). A support box (12) is rotatably connected to the center of the first sieve plate (2). The end of the second rotating rod (11) away from the drive motor (10) is connected to the top of the support box (12).

3. A chemical raw material grinding device with screening function according to claim 2, characterized in that: Four grinding rollers (13) are rotatably connected to the outer wall of the support box (12). The four grinding rollers (13) are oriented in four directions and are distributed in a cross shape. The grinding rollers (13) are attached to the top of the first sieve plate (2). One end of the grinding roller (13) passes through the support box (12) and is fixedly connected to a driven gear (14) at the end. There are four driven gears (14).

4. A chemical raw material grinding device with screening function according to claim 3, characterized in that: An output motor (15) is fixedly installed at the bottom of the support box (12). The output end of the output motor (15) passes through the bottom of the support box (12) and is fixedly connected to the end of the drive gear (16). The drive gear (16) meshes with four driven gears (14).

5. A chemical raw material grinding device with screening function according to claim 1, characterized in that: The grinding chamber (1) is provided with a feed inlet (17) at the top, and the outlet of the feed inlet (17) is directly opposite the first sieve plate (2).

6. A chemical raw material grinding device with screening function according to claim 1, characterized in that: The grinding chamber (1) has a first discharge port (18) on one side and the second screen plate (3) at a corresponding position, and the bottom of the grinding chamber (1) has a second discharge port (19).

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