A screen structure for a grinding mill

Abstract

This utility model relates to a screen structure for a grinding mill, comprising a screen frame with a material trough inside. One end of the screen frame has a first discharge end and a second discharge end, with a first discharge channel and a second discharge channel respectively provided on the first and second discharge ends. A discharge guide plate is provided inside the material trough. A support plate with adjustable tilt and height at both ends is provided on the screen frame. A material mesh is connected to the support plate via a pressure block. The discharge guide plate and the material mesh form a first discharge channel and a second discharge channel that communicate with the first and second discharge channels respectively. The material mesh is fixed by a pressure block insertion method, improving the efficiency of disassembly and replacement. By adjusting the tilt angle of the support plate, the sliding speed and screening path of the material on the material mesh are optimized. Furthermore, the independent discharge through the first and second discharge channels allows for the simultaneous output of coarse and fine powder, improving the screening effect.

Description

Technical Field

[0001] This utility model relates to the field of screen structure, specifically to a screen structure for a grinding mill. Background Technology

[0002] Grinding mills are common processing equipment whose main function is to grind materials into powder, and they are widely used in many industries and fields. They provide key equipment support for the powder preparation of various raw materials. The screen structure in existing grinding mills is an important component, directly affecting the mill's screening efficiency and screening quality.

[0003] The screen structure of a grinding mill includes the screen itself and its fixing device. The screen is installed near the discharge port of the grinding mill to screen the ground material, ensuring that only powder that meets the particle size requirements can pass through the screen, thereby achieving the purpose of screening.

[0004] However, existing screen structures still have certain shortcomings. In the grinding process, the performance of the screen directly affects product quality and production efficiency. Because linearly designed screens tend to accumulate material during screening, this reduces screening efficiency, leading to poor separation and impacting the overall working efficiency of the mill. It can also cause increased screen clogging and wear. Existing screen structures often cannot withstand prolonged workloads, resulting in short screen lifespans and frequent replacements. However, the installation of existing screen structures is complex, requiring significant time and effort for replacement, thus affecting the mill's continuous operation and overall performance. Utility Model Content

[0005] The purpose of this utility model is to solve the above-mentioned defects and provide a screen structure for a grinding mill, so as to solve the technical problems in the background art where the screen has poor screening effect and the installation method of the screen is relatively complicated, making it difficult to disassemble and replace it conveniently, which affects its use.

[0006] The objective of this utility model is achieved through the following means:

[0007] A screen structure for a grinding mill includes a screen frame with a material trough inside. One end of the screen frame has a first discharge end and a second discharge end. A first discharge channel and a second discharge channel are respectively provided on the first discharge end and the second discharge end. One end of the first discharge channel and the second discharge channel are connected to the material trough. A discharge guide plate is provided inside the material trough, with one end of the discharge guide plate extending towards the first discharge channel. A support plate that can be adjusted for lifting and tilting at both ends is provided on the screen frame. A material mesh is connected to the support plate through a pressure block, with one end of the material mesh extending towards the second discharge channel. The discharge guide plate and the material mesh are used to form the first discharge channel and the second discharge channel in the material trough, respectively connected to the first discharge channel and the second discharge channel.

[0008] Furthermore, as described above, the bottom of the first discharge end and the second discharge end are respectively provided with a first discharge port and a second discharge port that communicate with the outside.

[0009] The first and second discharge ends can be set to separate and collect the products, avoiding the back mixing of coarse and fine materials, solving the problem of secondary screening caused by poor discharge of traditional screens, and ensuring the stability of continuous production.

[0010] Furthermore, as described above, the pallet is provided with connecting holes and has several insertion slots for inserting pressure blocks. One end of the pressure block is paired with the insertion slot and inserted, which can press the mesh onto the pallet.

[0011] By matching and inserting the pressure block with the interlocking slot, the mesh is pressed and tightened, simplifying the mesh replacement process. Specifically, the pressure block is used to press the edge of the mesh, thereby ensuring the installation stability of the mesh. At the same time, the edge of the mesh can be provided with interlocking holes, so that the other end of the pressure block can be matched with the interlocking hole, thereby pulling the mesh outward and further improving the firmness of the mesh installation.

[0012] Furthermore, as described above, the screen frame is connected to an adjusting bolt via a connecting plate. One end of the adjusting bolt extends into the material trough and connects to the connecting hole of the support plate. The support plate is inclinedly positioned within the material trough and is mounted above the discharge guide plate via the adjusting bolt. The end of the adjusting bolt extending into the material trough is connected to a limiting nut for holding the material mesh.

[0013] By adjusting the length of the threaded portion of the bolt, it can be adapted to the lifting and lowering adjustment of the pallet, thereby allowing adjustment of the tilt angle at both ends of the pallet.

[0014] Specifically, the threaded part of the adjusting bolt is connected to a limit nut, which supports and lifts the mesh.

[0015] Furthermore, as described above, one end of the first feeding channel and the second feeding channel are respectively connected to the first discharge channel and the second discharge channel.

[0016] Furthermore, as described above, a support frame is provided on the outer side of the screen frame.

[0017] The beneficial effects of this utility model are as follows: Through the diversion design of the discharge guide plate and the material screen, the material is automatically classified into fine and coarse materials, which enter the first and second discharge channels respectively, avoiding material accumulation on the screen. The independent discharge of the first and second discharge channels allows for the simultaneous output of coarse and fine powder, improving the screening effect. By adjusting the tilt angle of the pallet, the sliding speed and screening path of the material on the screen are optimized, further improving the screen's performance. Simultaneously, the screen is fixed by a plug-in clamping block, simplifying the screen assembly and disassembly process and solving the problem of complex installation and disassembly structures in existing screens. This improves the efficiency of screen replacement, allowing for convenient replacement of different screens as needed, increasing flexibility and convenience, making it suitable for different screening requirements, and enhancing production efficiency. Attached Figure Description

[0018] Figure 1 This is an axonometric view from a top-down perspective of this embodiment;

[0019] Figure 2 This is a side view of this embodiment;

[0020] Figure 3 This is a schematic diagram of the internal structure of this embodiment;

[0021] Figure 4 This is a cross-sectional view of this embodiment;

[0022] The reference numerals in the figure are as follows: 1-screen frame, 2-material trough, 3-first discharge end, 4-second discharge end, 5-first discharge channel, 6-second discharge channel, 7-discharge guide plate, 8-support plate, 9-pressing block, 10-material mesh, 11-first discharge channel, 12-second discharge channel, 13-first discharge port, 14-second discharge port, 15-connecting hole, 16-insertion groove, 17-connecting plate, 18-adjusting bolt, 19-support frame. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] In this embodiment, refer to Figures 1-4The specific implementation of the screen structure for a grinding mill includes a screen frame 1, with a material trough 2 formed inside the screen frame 1. One end of the screen frame 1 has a first discharge end 3 and a second discharge end 4. The first discharge end 3 and the second discharge end 4 are respectively provided with a first discharge channel 5 and a second discharge channel 6. One end of the first discharge channel 5 and the second discharge channel 6 are connected to the material trough 2. A discharge guide plate 7 is provided inside the material trough 2. One end of the discharge guide plate 7 extends towards the first discharge channel 5. A support plate 8 that can be adjusted for lifting and tilting at both ends is provided on the screen frame 1. A material mesh 10 is connected to the support plate 8 through a pressure block 9. One end of the material mesh 10 extends towards the second discharge channel 6. The discharge guide plate 7 and the material mesh 10 are used to form a first discharge channel 11 and a second discharge channel 12 in the material trough 2 that are respectively connected to the first discharge channel 5 and the second discharge channel 6.

[0025] The bottom of the first discharge end 3 and the second discharge end 4 are respectively provided with a first discharge port 13 and a second discharge port 14 that communicate with the outside. The first discharge end 3 and the second discharge end 4 can separate and collect the product, avoid the back mixing of coarse and fine materials, solve the problem of secondary screening caused by poor discharge of traditional screens, and ensure the stability of continuous production.

[0026] The support plate 8 is provided with connecting holes 15 and has several insertion slots 16 for inserting pressure blocks 9. One end of the pressure block 9 is paired with the insertion slot 16 and inserted to press the mesh 10 onto the support plate 8. By pairing the pressure block 9 with the insertion slot 16 and pressing the mesh 10, the replacement process of the mesh 10 is simplified. Specifically, the pressure block 9 is used to press the edge of the mesh 10, thereby ensuring the installation stability of the mesh 10. At the same time, the edge of the mesh 10 can be provided with insertion holes, so that the other end of the pressure block 9 is paired with the insertion hole, thereby pulling the mesh 10 outward and further improving the firmness of the mesh 10 installation.

[0027] An adjusting bolt 18 is connected to the screen frame 1 via a connecting plate 17. One end of the adjusting bolt 18 extends into the material trough 2 and connects to the connecting hole 15 of the support plate 8. The support plate 8 is inclinedly disposed in the material trough 2 and is mounted above the discharge guide plate 7 via the adjusting bolt 18. A limiting nut for holding the material mesh 10 is connected to the end of the adjusting bolt 18 extending into the material trough 2. By adjusting the length of the threaded portion of the adjusting bolt 18, it can be adapted to the lifting and lowering adjustment of the support plate 8, thereby adjusting the tilt angle at both ends of the support plate 8.

[0028] Specifically, the threaded part of the adjusting bolt 18 is connected to a limit nut, which supports and lifts the mesh 10.

[0029] One end of the first feeding channel 11 and the second feeding channel 12 are respectively connected to the first discharge channel 5 and the second discharge channel 6. A support frame 19 is provided on the outer side of the screen frame 1.

[0030] The specific installation structure in this embodiment is as follows:

[0031] A screen structure is installed at the feeding end of the grinding mill. A discharge guide plate 7 and a material screen 10 are installed inside the screen frame 1. The screen frame 1 is divided into a first feeding channel 11 and a second feeding channel 12. The first feeding channel 11 and the second feeding channel 12 are connected to the first discharge channel 5 and the second discharge channel 6, respectively. Through the diversion design of the inclined discharge guide plate 7 (for fine material screening) and the material screen 10 (for coarse material guidance), the material is automatically classified into coarse and fine materials, which then enter the first discharge channel 5 and the second discharge channel 6, respectively. This avoids material accumulation on the screen and allows for independent flow through the first feeding channel 11 and the second feeding channel 12. The vertical discharge system allows for the simultaneous output of coarse and fine powders, improving screening efficiency. By adjusting the connection length between the adjusting bolt 18 and the support plate 8, i.e., adjusting the inclination angle at both ends of the support plate 8, the sliding speed and screening path of the material on the screen 10 are optimized, further improving the screen's performance. Simultaneously, the screen 10 is fixed via a plug-in clamping block 9, simplifying the screen assembly and disassembly process and resolving the complex installation and disassembly structure of the existing screen 10. This improves the efficiency of disassembly and replacement of the screen 10, allowing for convenient replacement of different screens as needed, enhancing flexibility and convenience, making it suitable for various screening requirements, and increasing production efficiency.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A screen structure for a grinding mill, comprising a screen frame, wherein a material trough is formed inside the screen frame, characterized in that: One end of the screen frame is formed with a first discharge end and a second discharge end. The first discharge end and the second discharge end are respectively provided with a first discharge channel and a second discharge channel. One end of the first discharge channel and the second discharge channel are connected to the material trough. A discharge guide plate is provided in the material trough. One end of the discharge guide plate extends into the first discharge channel. The screen frame is provided with a support plate that can be raised, lowered and tilted at both ends. A material mesh is connected to the support plate through a pressure block. One end of the material mesh extends into the second discharge channel. The discharge guide plate and the material mesh are used to form the first discharge channel and the second discharge channel in the material trough, which are respectively connected to the first discharge channel and the second discharge channel.

2. The screen structure for a grinding mill according to claim 1, characterized in that: The bottom of the first discharge end and the second discharge end are respectively provided with a first discharge port and a second discharge port that communicate with the outside.

3. The screen structure for a grinding mill according to claim 1, characterized in that: The tray is provided with connection holes and has several insertion slots for inserting pressure blocks. One end of the pressure block is paired with the insertion slot and inserted, which can press the mesh onto the tray.

4. The screen structure for a grinding mill according to claim 3, characterized in that: The screen frame is connected to an adjusting bolt via a connecting plate. One end of the adjusting bolt extends into the material trough and connects to the connecting hole of the support plate. The support plate is inclined in the material trough and is mounted above the discharge guide plate via the adjusting bolt. The end of the adjusting bolt extending into the material trough is connected to a limiting nut for holding the material screen.

5. A screen structure for a grinding mill according to any one of claims 1-4, characterized in that: One end of the first feeding channel and the second feeding channel are respectively connected to the first discharge channel and the second discharge channel.

6. A screen structure for a grinding mill according to any one of claims 1-4, characterized in that: A support frame is provided on the outer side of the sieve frame.

Images