A sand mill particle sizing device

Abstract

The utility model relates to sand mill technical field discloses a sand mill granularity grading device, including the protection box, the protection box inner wall fixedly connected with the stratified filter inclined plate no.

Description

Technical Field

[0001] This utility model relates to the field of sand mill technology, and in particular to a sand mill particle size classification device. Background Technology

[0002] In sand mill applications, particle size classification is a crucial step. Traditional sand mill particle size classification devices have limitations, such as low classification efficiency, low accuracy, and complex operation. With the continuous development of industrial production, the performance requirements for sand mill particle size classification devices are also becoming increasingly stringent.

[0003] Traditional sand mill particle size classification devices typically use a single filtration method, which cannot effectively classify materials, resulting in low classification efficiency. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a particle size classification device for a sand mill.

[0005] This utility model is achieved using the following technical solution: a particle size classification device for a sand mill, comprising a first layered filter inclined plate fixedly connected to the inner wall of a protective box, the first layered filter inclined plate having a plurality of filter holes at its top end, a second layered filter inclined plate being provided at its bottom end, the second layered filter inclined plate being fixedly connected inside the protective box, the second layered filter inclined plate having a plurality of filter holes at its top end, a collection groove being provided at its bottom end, and a collection groove being provided inside the protective box.

[0006] Through the above technical solution, the first and second layered filter inclined plates can gradually classify materials through filter holes of different sizes, separating materials of different particle sizes. Larger particles are intercepted at the top, while smaller particles fall through the filter holes, thereby achieving precise classification of materials. The multi-layered filter structure can complete multiple filtrations in the same device, reducing material processing steps and time, and improving production efficiency.

[0007] As a further improvement to the above solution, the rear end of the front door of the protective box is hinged by a hinge, and an observation window is fixedly connected to the rear end of the protective box.

[0008] With the above technical solution, when the device needs to be inspected or its internal components need maintenance, the door can be easily opened to inspect or clean the internal components such as the layered filter inclined plate and the stirring shaft. Operators can observe the filtration and grading status inside the device at any time through the observation window without opening the door, which facilitates timely detection and adjustment of problems and improves the convenience and safety of operation.

[0009] As a further improvement to the above solution, a support plate is fixedly connected to the inner wall of the protective box. The support plate is set at the top of a layered filter inclined plate. Several filter holes are opened at the top of the support plate. The top of the support plate is fixedly connected to the bottom of the support frame. There are two support frames. The tops of the two support frames are fixedly connected to the bottom of the feed hopper. The outlet of the bottom of the feed hopper is located directly above the protective box.

[0010] Through the above technical solution, the design of the feeding hopper allows materials to enter the protective box smoothly, and the feeding speed and amount can be controlled as needed to ensure the stable operation of the device.

[0011] As a further improvement to the above solution, the two support frames are connected to a rotating shaft at their close ends, and two rotating shafts are provided. A stirring shaft is fixedly connected to the two rotating shafts at their close ends, and stirring blades are fixedly connected to the surface of the stirring shaft. Several stirring blades are provided.

[0012] Through the above technical solutions, the rotation of the stirring shaft and stirring blades can make the material more evenly distributed in the protective box, avoiding uneven accumulation of material on the filter inclined plate, thereby ensuring that each filter hole can fully perform its filtering function, improving the grading effect and efficiency. Stirring can prevent particles in the material from clogging the filter holes. Especially for some materials containing viscous components, the rotation of the stirring blades makes the material constantly turn over, reducing the possibility of particles aggregating around the filter holes and forming blockages, ensuring the continuous and stable operation of the device.

[0013] As a further improvement to the above solution, a collection box is provided at the right end of the first layered filter inclined plate, the bottom end of the collection box is fixedly connected to the top end of the support column, and four support columns are provided. A collection box is provided at the left end of the second layered filter inclined plate, and the collection box is placed at the left end of the protective box.

[0014] With the above technical solution, collection box one and collection box two are located on both sides of the layered filter inclined plate, which facilitates the collection of materials of different particle sizes that are intercepted, and makes it easier to carry out subsequent processing or analysis of the graded materials. Materials of different particle sizes are collected in different collection boxes, avoiding the mixing of materials of different particle sizes and ensuring the purity and quality of the materials.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention features a multi-layered filtration structure consisting of a support plate, a first layer of layered filter inclined plates, and a second layer of layered filter inclined plates, with the filter pore size decreasing from top to bottom. This design enables progressive particle size classification of the material produced by the sand mill, effectively separating materials of different particle size ranges and improving the accuracy and efficiency of the classification.

[0017] Due to the gradient change in filter pore size, larger particles are first intercepted by the upper support plate or layered filter inclined plate, while smaller particles can continue to fall until they are intercepted by the filter layer with the appropriate pore size. This achieves precise separation of materials of different particle sizes and meets the grading requirements of different particle sizes for sand mill products.

[0018] This utility model has an observation window fixedly connected to the rear end of the protective box. Operators can observe the filtration and classification inside the device at any time through the observation window without opening the box door, which facilitates timely detection and adjustment of problems and improves the convenience and safety of operation.

[0019] A collection box is provided at the right end of the first layered filter inclined plate, and a collection box is provided at the left end of the second layered filter inclined plate. Materials of different particle sizes can be collected into the corresponding collection boxes after being separated. The collection boxes are easy to place and remove, which facilitates the subsequent processing or analysis of the graded materials, and also makes it easy to clean the collection boxes.

[0020] The front door of the protective box is hinged, which allows for easy opening of the box when the device needs maintenance or internal components need repair. This allows for the inspection or cleaning of components such as the layered filter plate and stirring shaft inside the device, and also facilitates the collection of materials that have been preliminarily screened on the support plate.

[0021] Stirring prevents particles from clogging the filter holes, especially for materials containing sticky components. The rotation of the stirring blades constantly agitates the material, reducing the likelihood of particles accumulating around the filter holes and causing blockages, thus ensuring the continuous and stable operation of the equipment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the left end structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the rear structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the internal structure of this utility model;

[0026] Figure 5 This is a cross-sectional structural diagram of the present invention.

[0027] Explanation of key symbols:

[0028] 1. Protective box; 2. Box door; 3. Observation window; 4. Feed hopper; 5. Support frame; 6. Rotating shaft; 7. Stirring shaft; 8. Stirring blade; 9. Support plate; 10. Filter hole; 11. Layered filter inclined plate one; 12. Layered filter inclined plate two; 13. Collection tank; 14. Collection box one; 15. Support column; 16. Collection box two. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0030] Example:

[0031] Please combine Figure 1-5 This embodiment of a sand mill particle size classification device includes a protective box 1. A layered filter inclined plate 11 is fixedly connected to the inner wall of the protective box 1. The top of the layered filter inclined plate 11 has a plurality of filter holes 10. A layered filter inclined plate 2 12 is provided at the bottom of the layered filter inclined plate 11. The layered filter inclined plate 2 12 is fixedly connected inside the protective box 1. The top of the layered filter inclined plate 2 12 has a plurality of filter holes 10. A collection groove 13 is provided at the bottom of the layered filter inclined plate 2 12. A collection groove 13 is provided inside the protective box 1.

[0032] The protective box 1 has a door 2 at the front end and is hinged at the rear end. The protective box 1 also has an observation window 3 fixedly connected to the rear end.

[0033] A support plate 9 is fixedly connected to the inner wall of the protective box 1. The support plate 9 is set at the top of the layered filter inclined plate 11, and a number of filter holes 10 are opened at the top of the support plate 9.

[0034] The top of the support plate 9 is fixedly connected to the bottom of the support frame 5. There are two support frames 5. The tops of the two support frames 5 are fixedly connected to the bottom of the feed hopper 4. The outlet of the bottom of the feed hopper 4 is located directly above the protective box 1.

[0035] Two support frames 5 are connected to a rotating shaft 6 at one end close to each other. There are two rotating shafts 6. A stirring shaft 7 is fixedly connected to one end close to each other. A stirring blade 8 is fixedly connected to the surface of the stirring shaft 7. There are several stirring blades 8.

[0036] A collection box 14 is provided at the right end of the layered filter inclined plate 11. The bottom end of the collection box 14 is fixedly connected to the top end of the support column 15. There are four support columns 15.

[0037] A collection box 16 is provided at the left end of the layered filter inclined plate 2 12, and the collection box 16 is placed at the left end of the protective box 1.

[0038] The implementation principle of the particle size classification device for a sand mill in this embodiment is as follows: Material enters directly above the protective box 1 from the outlet at the bottom of the feed hopper 4. Due to gravity, it falls into the protective box 1. At the same time, the rotating shaft 6 drives the stirring shaft 7 to rotate, and the stirring blades 8 on the stirring shaft 7 stir the material entering the protective box 1, so that the material is evenly dispersed in the protective box 1. The stirred material first contacts the support plate 9, and the top of the support plate 9 has several filter holes 10. Since the filter holes 10 have a certain size, larger particles cannot pass through these filter holes 10 and are retained on the support plate 9, while smaller particles fall through the filter holes 10. The material that passes through the filter holes 10 of the support plate 9 continues to fall to the layered filter inclined plate 11. The filter holes 10 at the top of the first layered filter plate 11 are smaller than the filter holes 10 of the support plate 9. Here, some of the slightly larger particles are intercepted, while the smaller particles continue to fall through the filter holes 10 of the first layered filter plate 11. The material filtered by the first layered filter plate 11 reaches the second layered filter plate 12. The filter hole 10 at the top of the second layered filter plate 12 is the smallest of the three, further intercepting smaller particles. This ensures that the material passing through the filter hole 10 of the second layered filter plate 12 is the smallest particle size. The material intercepted by the first layered filter plate 11 will slide into the collection box 14 at the right end of the first layered filter plate 11 due to its own weight and possible slight vibrations, thus collecting the larger particles. The material intercepted by the second layered filter plate 12 will slide into the collection box 16 at the left end of the second layered filter plate 12, thus collecting the medium-sized particles. The smallest particles passing through the filter hole 10 of the second layered filter plate 12 finally fall into the collection trough 13 inside the protective box 1, thus completing the collection of the smallest particles.

[0039] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A particle size classification device for a sand mill, characterized in that, The protective box (1) includes a layered filter inclined plate (11) fixedly connected to the inner wall of the protective box (1). The top of the layered filter inclined plate (11) has several filter holes (10). The bottom of the layered filter inclined plate (11) is provided with a layered filter inclined plate (12). The protective box (1) is fixedly connected to the inside of the layered filter inclined plate (1). The top of the layered filter inclined plate (12) has several filter holes (10). The bottom of the layered filter inclined plate (12) is provided with a collection groove (13). The protective box (1) is provided with a collection groove (13).

2. The particle size classification device for a sand mill as described in claim 1, characterized in that: The protective box (1) has a door (2) at the front end and is hinged to the rear end via a hinge. An observation window (3) is fixedly connected to the rear end of the protective box (1).

3. The particle size classification device for a sand mill as described in claim 1, characterized in that: The inner wall of the protective box (1) is fixedly connected to a support plate (9), which is set at the top of the layered filter inclined plate (11). The top of the support plate (9) has several filter holes (10).

4. The particle size classification device for a sand mill as described in claim 3, characterized in that: The top of the support plate (9) is fixedly connected to the bottom of the support frame (5). There are two support frames (5). The tops of the two support frames (5) are fixedly connected to the bottom of the feed hopper (4). The outlet of the bottom of the feed hopper (4) is located directly above the protective box (1).

5. The particle size classification device for a sand mill as described in claim 4, characterized in that: Two rotating shafts (6) are connected to one end of the two support frames (5) that are close to each other. Two rotating shafts (6) are provided. A stirring shaft (7) is fixedly connected to one end of the two rotating shafts (6) that are close to each other. A stirring blade (8) is fixedly connected to the surface of the stirring shaft (7). A plurality of stirring blades (8) are provided.

6. The particle size classification device for a sand mill as described in claim 1, characterized in that: A collection box (14) is provided at the right end of the layered filter inclined plate (11). The bottom end of the collection box (14) is fixedly connected to the top end of the support column (15). There are four support columns (15).

7. The particle size classification device for a sand mill as described in claim 1, characterized in that: A collection box (16) is provided at the left end of the second layered filter inclined plate (12), and the collection box (16) is placed at the left end of the protective box (1).

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