A sand mill filtration device

Abstract

The utility model relates to sand mill technical field, and disclose a sand mill filter equipment, including the filter box of installation in the top of frame, the side of frame is provided with the grinding cylinder, the inner wall of filter box is equipped with the alternate inclination coarse screen, grinding material screen and powder inclined plate from top to bottom respectively, the side of filter box away from grinding cylinder is opened in two discharge gates through, two discharge gates are set up with coarse screen and powder inclined plate match respectively, the side of filter box close to grinding cylinder is opened in grinding material hole through, grinding material hole is set up with grinding material screen match, grinding material hole and grinding cylinder intercommunication. This kind of sand mill filter equipment, through the synergies of coarse screen, grinding material screen and powder inclined plate, can carry out grading screening to grinding raw material, and the raw material of the particle size in the middle stays on grinding material screen and falls into grinding cylinder to carry out grinding processing through grinding material hole, effectively ensures that the raw material particle size that enters grinding cylinder is even, and improves the uniformity and overall processing efficiency of grinding process.

Description

Technical Field

[0001] This utility model relates to the field of sand mill technology, specifically a sand mill filtration device. Background Technology

[0002] Sand mills are currently the most adaptable and efficient grinding equipment for various materials. During operation, sand mills add grinding media into the grinding chamber, utilizing the impact and shearing forces generated by the impact and rolling of the media to achieve efficient grinding of the material. After grinding, the material and grinding media are discharged together. A filtration device is usually installed to retain and separate the grinding media and large, insufficiently ground particles, thus obtaining a ground product that meets the particle size requirements.

[0003] The patent with publication number CN212651919U discloses a vertical sand mill, including a machine body, a feed pump, and a cylinder. A sand mill motor is installed inside the machine body, and the rotating shaft of the sand mill motor extends into the cylinder. Grinding blades are installed on the rotating shaft inside the cylinder. The cylinder has a double-layer structure, including an outer cylinder layer and an inner cylinder layer, with a cooling interlayer formed between the outer and inner cylinder layers. A cooling inlet port I and a cooling outlet port I, which communicate with the cooling interlayer, are provided on the outside of the outer cylinder layer. Several first cooling ribs are uniformly distributed along the axial direction on the outside of the inner cylinder layer. The first cooling ribs are sheet-shaped. Several uniformly distributed cooling protrusions are fixed on both sides of the first cooling ribs, and each cooling protrusion is perpendicular to the central axis of the inner cylinder. Several cooling holes are provided between each pair of adjacent cooling protrusions in a straight line.

[0004] However, the sand mills described above still have the following problems: In the initial feeding stage, if the raw materials contain large particles, it will lead to uneven grinding of materials of different particle sizes. When the small particles have been fully ground, the large particles may still not have reached the target fineness, resulting in an excessively wide particle size distribution in the final product. Simply extending the grinding time to ensure that the large particles are sufficiently refined will significantly increase energy consumption and production cycle, affecting the overall processing efficiency. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a sand mill filtration device to improve the uniformity and efficiency of grinding.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sand mill filtration device, comprising a frame and a filter box installed on the top of the frame, a grinding cylinder installed on one side of the frame, and alternating inclined coarse material screen, a grinding material screen and a powder inclined plate fixed from top to bottom on the inner wall of the filter box, with two discharge ports through the filter box on the side away from the grinding cylinder, the two discharge ports being matched with the coarse material screen and the powder inclined plate respectively, and a grinding material hole through the filter box on the side near the grinding cylinder, the grinding material hole being matched with the grinding material screen and communicating with the grinding cylinder.

[0007] Furthermore, a vibrator is fixedly connected to the side wall of the filter box.

[0008] Furthermore, several damping vibration dampers are fixedly connected to the bottom of the filter box, and all of these damping vibration dampers are fixedly connected to the top of the frame.

[0009] Furthermore, a flexible hose communicating with the abrasive hole is fixedly connected to the side wall of the filter box, and the other end of the hose is fixedly connected to the top of the abrasive cylinder.

[0010] Furthermore, an inclined sliding plate is fixedly connected to the end of the coarse material screen away from the discharge port, and the inclined sliding plate is fixedly connected to the inner wall of the filter box.

[0011] Furthermore, a packing hopper is fixedly connected to the top of the filter box, and the packing hopper is located directly above the inclined slide plate.

[0012] Furthermore, a material box is connected to the side of the discharge port away from the filter box.

[0013] Furthermore, the top of the material box and the top side wall are provided with a communicating opening, and a hanging rod is fixedly connected between the two corners of the opening. An L-shaped bracket is fixedly connected to the top of the discharge port, and the hanging rod is slidably connected to the inner wall of the L-shaped bracket.

[0014] Furthermore, an arc-shaped material drop plate is fixedly connected to the bottom of the discharge port, and the bottom of the opening on the side wall of the material box is located below the arc-shaped material drop plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This type of sand mill filtration device, through the synergistic action of a coarse material screen, an abrasive screen, and a powder inclined plate, can classify and screen the raw materials for grinding. The coarse material screen first intercepts raw materials with excessively large particle sizes and discharges them from the upper outlet; raw materials with moderate particle sizes remain on the abrasive screen and fall into the grinding cylinder through the abrasive holes for grinding; while excessively fine powdery raw materials pass through the abrasive screen, fall onto the powder inclined plate below, and are discharged through the lower outlet, effectively ensuring that the particle size of the raw materials entering the grinding cylinder is uniform, improving the uniformity of the grinding process and the overall processing efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall connection structure of this utility model; Figure 2 This is a bottom view of the filter box connection structure of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the filter box of this utility model; Figure 4 This is a front view of the cross-sectional structure of the filter box of this utility model; Figure 5 This is a schematic diagram of the material box connection structure of this utility model.

[0017] In the diagram: 1. Frame; 2. Grinding cylinder; 3. Filter box; 4. Coarse material screen; 5. Grinding material screen; 6. Powder inclined plate; 7. Vibrator; 8. Damping vibration damper; 9. Hose; 10. Material box; 11. Hanging rod; 12. L-shaped hanging bracket; 13. Arc-shaped discharge plate; 31. Filling hopper; 41. Inclined slide plate; 301. Discharge port; 302. Grinding material hole. 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] Please see Figures 1 to 5 This utility model discloses a sand mill filtration device, including a frame 1 and a filter box 3 installed on the top of the frame 1. A grinding cylinder 2 is installed on one side of the frame 1. The inner wall of the filter box 3 is fixed with alternating inclined coarse material screen 4, abrasive material screen 5 and powder inclined plate 6 from top to bottom. Two discharge ports 301 are opened through the filter box 3 on the side away from the grinding cylinder 2. The two discharge ports 301 are respectively matched with the coarse material screen 4 and the powder inclined plate 6. Abrasive material hole 302 is opened through the filter box 3 on the side close to the grinding cylinder 2. The abrasive material hole 302 is matched with the abrasive material screen 5 and is connected to the grinding cylinder 2.

[0020] The main improvement of this invention lies in ensuring a more uniform particle size of the raw material entering the grinding cylinder 2, thereby improving the uniformity of the grinding process and the overall processing efficiency. Figures 1 to 5As shown, in use, the sand mill filtration device of this utility model adds the raw material to be ground onto the coarse screen 4 from the top of the filter box 3. The coarse screen 4 intercepts excessively large particles and discharges them through the upper outlet 301. Medium-sized particles remain on the grinding screen 5 and fall into the grinding cylinder 2 through the grinding holes 302 for grinding. Excessively fine powdery materials pass through the grinding screen 5 and fall onto the lower powder inclined plate 6, exiting through the lower outlet 301. This effectively ensures uniform particle size of the raw material entering the grinding cylinder 2, improving the uniformity of the grinding process and overall processing efficiency. It should be noted that the inclination directions of the coarse screen 4, the grinding screen 5, and the powder inclined plate 6 are as shown in the attached figure. Figure 4 As shown, the coarse material screen 4 and the powder inclined plate 6 are inclined in the same direction, while the grinding material screen 5 is located between the coarse material screen 4 and the powder inclined plate 6, and the inclination direction of the grinding material screen 5 is opposite to that of the coarse material screen 4. The two discharge ports 301 are located on the sides of the downward inclined end of the coarse material screen 4 and the powder inclined plate 6, respectively, and the width of the discharge port 301 is the same as the width of the downward inclined end of the corresponding coarse material screen 4 or the powder inclined plate 6, thereby ensuring that the raw materials falling from the coarse material screen 4 and the powder inclined plate 6 can be smoothly discharged from the corresponding discharge port 301. The grinding material hole 302 is connected to the downward inclined end of the grinding material screen 5, and the bottom of the grinding material hole 302 is flush with the bottom of the grinding material screen 5, thereby ensuring that the raw materials screened on the grinding material screen 5 fall smoothly and enter the grinding material hole 302.

[0021] like Figure 2 As shown, a vibrator 7 is fixedly connected to the side wall of the filter box 3. The vibrator 7 installed on the side of the filter box 3 can drive the filter box 3 to vibrate as a whole, so that the raw material can be smoothly screened on the coarse material screen 4 and the grinding material screen 5 inside the filter box 3. At the same time, the excessively fine powdery raw material can also gradually slide down from the vibrating powder inclined plate 6 and be discharged from the discharge port 301.

[0022] like Figure 2 and Figure 4 As shown, several damping vibration dampers 8 are fixedly connected to the bottom of the filter box 3, and all of the damping vibration dampers 8 are fixedly connected to the top of the frame 1. When the vibrator 7 drives the filter box 3 to vibrate, the multiple damping vibration dampers 8 at the bottom of the filter box 3 can reduce the vibration transmitted from the filter box 3 to the frame 1 at the bottom, and at the same time, can reduce the vibration transmitted from the frame 1 to the filter box 3. This can reduce the vibration interference between the frame 1 and the filter box 3, and improve the filtration and screening effect of the raw materials in the filter box 3.

[0023] like Figures 1 to 4As shown, a flexible hose 9, communicating with the grinding material hole 302, is fixedly connected to the side wall of the filter box 3. The other end of the flexible hose 9 is fixedly connected to the top of the grinding cylinder 2. During the process of the raw material passing through the vibrating screen in the filter box 3, the raw material with a suitable particle size can be introduced into the grinding cylinder 2 through the flexible hose 9. The excess of the flexible hose 9 allows the filter box 3 to always maintain the connection between itself and the grinding cylinder 2 when vibrating and bumping. At the same time, the vibration of the vibrator 7 and the frame 1 can also drive the flexible hose 9 to vibrate and swing, so that the raw material falling into the flexible hose 9 can fall smoothly into the grinding cylinder 2.

[0024] like Figure 3 As shown, an inclined slide plate 41 is fixedly connected to the end of the coarse material screen 4 away from the discharge port 301. The inclined slide plate 41 is fixedly connected to the inner wall of the filter box 3. By setting the inclined slide plate 41, when the raw material is added into the filter box 3, the raw material falls onto the inclined slide plate 41 and then slides down onto the coarse material screen 4 for screening. The setting of the inclined slide plate 41 ensures that when the raw material falls from the coarse material screen 4 onto the grinding screen 5 below, it is in the rear half of the grinding screen 5, thereby preventing excessively fine powdery raw materials from falling into the grinding cylinder 2 from the grinding hole 302 without being screened by the grinding screen 5, thus improving the raw material screening effect.

[0025] like Figures 1 to 4 As shown, a packing hopper 31 is fixedly connected to the top of the filter box 3, and the packing hopper 31 is located directly above the inclined slide plate 41. Raw materials are added from the packing hopper 31 and fall downwards onto the inclined slide plate 41, allowing the raw materials to be added to the inclined slide plate 41 more precisely.

[0026] like Figures 1 to 5 As shown, a material box 10 is connected to the side of the discharge port 301 away from the filter box 3. Raw materials with excessively large particle size and excessively fine powdery raw materials can fall into the corresponding material box 10 through the corresponding discharge port 301 for collection.

[0027] like Figures 3 to 5 As shown, the top of the material box 10 has a communicating opening with its top side wall. A hanging rod 11 is fixedly connected between the two corners of the opening. An L-shaped bracket 12 is fixedly connected to the top of the discharge port 301. The hanging rod 11 is slidably connected to the inner wall of the L-shaped bracket 12. The material box 10 can be hung on the L-shaped bracket 12 at the top of the discharge port 301 via the hanging rod 11 at the opening, making it convenient to remove the material box 10 and process the collected raw materials with excessively large particle sizes and excessively fine powdery raw materials.

[0028] like Figures 3 to 5As shown, an arc-shaped material drop plate 13 is fixedly connected to the bottom of the discharge port 301, and the bottom of the opening on the side wall of the material box 10 is located below the arc-shaped material drop plate 13. The raw material discharged from the discharge port 301 can slide into the material box 10 through the arc-shaped material drop plate 13. During this process, even if the vibration causes the material box 10 to sway slightly, the guided material drop plate 13 can prevent the discharged raw material from falling to the ground, thus improving the collection effect of the material box 10 on the screened raw material.

[0029] 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 these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A sand mill filtering device, comprising a frame (1) and a filtering box (3) installed on the top of the frame (1), a grinding cylinder (2) is installed on one side of the frame (1), characterized in that: The inner wall of the filter box (3) is fixed with alternating inclined coarse material screen (4), abrasive screen (5) and powder inclined plate (6) from top to bottom. Two discharge ports (301) are opened through the side of the filter box (3) away from the grinding cylinder (2). The two discharge ports (301) are respectively matched with the coarse material screen (4) and the powder inclined plate (6). Abrasive holes (302) are opened through the side of the filter box (3) close to the grinding cylinder (2). The abrasive holes (302) are matched with the abrasive screen (5) and are connected to the grinding cylinder (2).

2. The sand mill filtration device according to claim 1, characterized in that: A vibrator (7) is fixedly connected to the side wall of the filter box (3).

3. The sand mill filtration device according to claim 1, characterized in that: The bottom of the filter box (3) is fixedly connected to several damping shock absorbers (8), and the damping shock absorbers (8) are all fixedly connected to the top of the frame (1).

4. The sand mill filtration device according to claim 1, characterized in that: The filter box (3) is fixedly connected to a flexible tube (9) that communicates with the abrasive hole (302) on its side wall, and the other end of the flexible tube (9) is fixedly connected to the top of the grinding cylinder (2).

5. A sand mill filtration device according to claim 1, characterized in that: An inclined slide plate (41) is fixedly connected to one end of the coarse material screen (4) away from the discharge port (301), and the inclined slide plate (41) is fixedly connected to the inner wall of the filter box (3).

6. A sander filter apparatus as claimed in claim 5, wherein: The top of the filter box (3) is fixedly connected to a packing hopper (31), which is located directly above the inclined slide plate (41).

7. A sander filter device according to claim 1, characterized in that: The discharge port (301) is connected to a material box (10) on the side away from the filter box (3).

8. A sander filter device according to claim 7, characterized in that: The top of the material box (10) and the top side wall are provided with a communicating opening. A hanging rod (11) is fixedly connected between the two corners of the opening. An L-shaped bracket (12) is fixedly connected to the top of the discharge port (301). The hanging rod (11) is slidably connected to the inner wall of the L-shaped bracket (12).

9. A sander filter apparatus as claimed in claim 8, wherein: The bottom of the discharge port (301) is fixedly connected to an arc-shaped material drop plate (13), and the bottom of the opening on the side wall of the material box (10) is located below the arc-shaped material drop plate (13).

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