Screen of pulverizer

Abstract

The utility model provides a crusher screen which comprises a screen body, concave rails for connecting adjacent meshes are formed among the meshes of the screen body, and the section, perpendicular to the length direction, of each concave rail is an arc-shaped section. Beveled sections which are opened towards the outer sides of the concave rails and are obliquely cut into the interiors of the meshes are formed at the intersections of the concave rails and the meshes. According to the crusher screen provided by the utility model, the concave tracks are arranged between the adjacent meshes, so that screened particles can be more easily captured and are guided to flow into the meshes, the screened particles cannot roll for a long distance when moving on the screen, and can be selected as soon as possible and flow into the meshes, and the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon dioxide screens, in particular to a grinder screen. Background Art

[0002] Sieves are essential tools for screening silica powder. They are typically made of materials such as stainless steel, offering excellent corrosion resistance. The mesh size of the sieve determines the particle size of the silica powder. For example, smaller mesh sizes allow for finer particles to be sieved. During use, silica powder is placed on the sieve and shaken or manually agitated to allow particles meeting the required particle size to pass through the mesh, while larger particles remain on the sieve. This effectively achieves graded screening of silica powder, meeting the precise particle size requirements of various industrial production processes.

[0003] The existing screen mesh used in the semiconductor industry for screening silica powder is 2CR13, which is easy to wear and has a service life of only 3-4 days. Utility Model Content

[0004] In order to overcome the above technical problems, the utility model provides a crusher screen to improve the problems of slow screening speed, short life and easy damage.

[0005] In order to achieve the above-mentioned purpose, the present invention proposes a crusher screen, including a screen, wherein recessed tracks connecting adjacent meshes are formed between the meshes of the screen 1, and the cross-section of the recessed track perpendicular to the length direction is an arc-shaped cross-section, and the intersection of the recessed track and the mesh is formed with an oblique cross-section that is open to the outside of the recessed track and obliquely cuts into the inside of the mesh.

[0006] Recessed tracks are provided between the meshes of screen 1 to guide the particles being screened toward the meshes, allowing them to slide down the tracks, allowing particles that meet the required size to pass through the meshes while retaining larger particles. In the actual screening process, all particles being screened are often poured onto the screen, and vibration is used to force particles that meet the required size to pass through the meshes, while the remaining particles are allowed to roll freely across the entire surface of the screen.

[0007] The recessed track can capture particles and guide them into adjacent mesh holes. There is a mesh hole at each end of the recessed track. Therefore, under the guidance of the recessed track, the particles will not roll around. The particles can be accurately captured and sent to the mesh holes. Those that meet the mesh hole standards will be missed, and the rest will be retained inside the screen, which increases the screening speed.

[0008] Preferably, a boss is formed in the recessed track.

[0009] The purpose of setting a boss in the concave track is to ensure that the particles do not stay in the middle section of the concave track. The particles can be quickly guided to both sides of the concave track to avoid the particles staying and thus preventing other particles from being screened.

[0010] Preferably, the boss is a conical structure.

[0011] The boss is set to a conical structure with a pointed top and a wide bottom. When the particles encounter the boss with a conical structure, they can quickly slide along the side walls of the cone into the recessed tracks on both sides and be guided into the mesh, thereby accelerating the screening speed.

[0012] Preferably, the boss is a hemispherical structure.

[0013] Setting the boss as a hemispherical structure can not only guide the particles to slide to both sides, but also prevent the particles from being blocked by the boss and getting stuck on one side of the boss. When the particles hit the boss of the hemispherical structure, they will slide to both sides into the concave track or be bounced off by the hemispherical structure, thus quickly leaving the range of the concave track without stopping, thus speeding up the screening process.

[0014] Preferably, the inner wall of the mesh of the screen is covered with an anti-scratch layer.

[0015] Setting an anti-scratch layer on the inner wall of the mesh of the screen can strengthen the mesh structure. Since the particles screened are silica particles with high hardness, the mesh will be damaged after a period of use, thereby changing the size of the screened particles leaking out and reducing the accuracy. Setting an anti-scratch layer strengthens the structure of the mesh and increases its service life.

[0016] Preferably, the screen is made of high-speed steel.

[0017] The use of high-speed steel makes the screen structure harder and less susceptible to wear, thus extending its service life.

[0018] The crusher screen provided by the utility model can capture the screened particles more easily and guide the particles to flow into the meshes by arranging recessed tracks between adjacent meshes, so that the screened particles will not roll for a long distance when moving on the screen and can be selected and flow into the meshes as quickly as possible, thereby improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of the screen provided in the embodiment of the present utility model;

[0020] Figure 2 This is a partial enlarged schematic diagram of point A provided in an embodiment of the present utility model;

[0021] Figure 3 A schematic structural diagram of a conical boss provided in an embodiment of the present utility model;

[0022] Figure 4 This is a schematic structural diagram of a hemispherical boss provided in an embodiment of the present utility model.

[0023] Description of Reference Numerals

[0024] 1. Screen; 2. Mesh; 3. Recessed track; 4. Beveled section; 5. Boss. DETAILED DESCRIPTION

[0025] The following describes embodiments of the present invention with reference to the accompanying drawings. Elements and features described in one drawing or one embodiment of the present invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that for the sake of clarity, the drawings and descriptions omit the representation and description of components or processes that are not relevant to the present invention and are known to those of ordinary skill in the art.

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] like Figures 1 to 4 As shown, the crusher screen provided by the utility model includes a screen 1, and a recessed track 3 connecting adjacent meshes 2 is formed between the meshes 2 of the screen 1. The cross section of the recessed track 3 perpendicular to the length direction is an arc-shaped cross section, and an oblique cross section 4 is formed at the intersection of the recessed track 3 and the mesh 2, which is open to the outside of the recessed track 3 and obliquely cuts into the inside of the mesh 2.

[0028] Recessed tracks 3 are provided between the meshes 2 of screen 1 to guide the particles being screened down the meshes 2, allowing them to slide down through the meshes 2. These guide particles that meet the required size to pass through the meshes 2, while retaining larger particles. In the actual screening process, all particles being screened are typically poured onto screen 1, and vibration is used to force particles that meet the required size to pass through the meshes 2. The remaining particles are then allowed to roll freely across the entire surface of screen 1.

[0029] The recessed track 3 can capture particles and guide the particles into the adjacent mesh 2 through the guidance of the recessed track 3. A mesh 2 is connected to each end of the recessed track 3. Therefore, under the guidance of the recessed track 3, the particles will not roll around, and the particles can be accurately captured and sent to the mesh 2. Those that meet the standards for passing through the mesh 2 will be missed, and the rest will be retained inside the screen 1, thereby increasing the screening speed.

[0030] In one embodiment of the present invention, a boss 5 is formed in the recessed track 3 .

[0031] The boss 5 is provided in the recessed track 3 to ensure that the particles do not stay in the middle section of the recessed track 3. The particles can be quickly guided to both sides of the recessed track 3 to avoid the particles staying and thus preventing other particles from being screened.

[0032] In one embodiment of the present invention, the boss 5 is a conical structure.

[0033] The boss 5 is set to a conical structure with a pointed top and a wide bottom. When the particles encounter the boss 5 with a conical structure, they can quickly slide along the side walls of the cone into the recessed tracks 3 on both sides and be guided into the mesh 2, thereby accelerating the screening speed.

[0034] In one embodiment of the present invention, the boss 5 is a hemispherical structure.

[0035] Setting the boss 5 to a hemispherical structure can not only guide the particles to slide to both sides, but also prevent the particles from being blocked by the boss 5 and getting stuck on one side of the boss 5. When the particles hit the boss 5 with a hemispherical structure, they will slide to both sides into the concave track 3 or be bounced off by the hemispherical structure, thus quickly leaving the range of the concave track 3 without stopping, thus speeding up the screening speed.

[0036] In one embodiment of the present invention, the inner wall of the mesh 2 of the screen 1 is covered with an anti-scratch layer.

[0037] An anti-scratch layer is provided on the inner wall of the mesh 2 of the screen 1 to reinforce the structure of the mesh 2. Since the particles screened are silica particles with a high hardness, the mesh 2 will be damaged after a period of use, thereby changing the size of the screened particles leaking out and reducing the accuracy. The anti-scratch layer reinforces the structure of the mesh 2 and increases the service life.

[0038] In one embodiment of the present invention, the screen 1 is made of high-speed steel.

[0039] The use of high-speed steel material makes the screen 1 structure harder and will not be easily worn, thereby extending the service life.

[0040] The crusher screen provided by the present invention can capture the screened particles more easily and guide the particles to flow into the meshes 2 by arranging recessed tracks 3 between adjacent meshes 2, so that the screened particles will not roll for a long distance when moving on the screen 1, and can be selected and flow into the meshes 2 as quickly as possible, thereby improving the screening efficiency.

[0041] Although the present invention and its advantages have been described in detail, it should be understood that various changes, substitutions and conversions can be made without exceeding the spirit and scope of the present invention as defined by the appended claims. Moreover, the scope of this application is not limited to the specific embodiments of the processes, devices, means, methods and steps described in the specification. It will be readily understood by those skilled in the art from the disclosure of the present invention that existing and future processes, devices, means, methods or steps to be developed that perform substantially the same functions as the corresponding embodiments described herein or obtain substantially the same results as the corresponding embodiments described herein can be used according to the present invention. Therefore, the appended claims are intended to include such processes, devices, means, methods or steps within their scope.

Claims

1. A pulverizer screen, comprising a screen (1), characterized in that: A recessed track (3) connecting adjacent meshes (2) is formed between the meshes (2) of the screen (1); a cross section of the recessed track (3) perpendicular to the length direction is an arcuate cross section; and an oblique cross section (4) is formed at the intersection of the recessed track (3) and the meshes (2), which is open to the outside of the recessed track (3) and obliquely cuts into the inside of the meshes (2).

2. The crusher screen according to claim 1, characterized in that: A boss (5) is formed in the recessed track (3).

3. The crusher screen according to claim 2, characterized in that: The boss (5) is a conical structure.

4. The crusher screen according to claim 2, characterized in that: The boss (5) is a hemispherical structure.

5. The crusher screen according to claim 1, characterized in that: The inner wall of the mesh (2) of the screen (1) is covered with an anti-scratch layer.

6. The crusher screen according to claim 1, characterized in that The screen (1) is made of high-speed steel.

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