Anti-blocking low load lining plate

Abstract

This utility model discloses a low-load liner for preventing material blockage, relating to the field of liner technology. It includes a liner body comprising an upper liner, a middle liner, and a lower liner fixed sequentially from top to bottom. The bottom of the inner wall of the upper liner has an installation groove, within which a vertically positioned limiting post is fixed. A slider is sleeved and slidably connected to the limiting post. A filter plate mounting seat is fixed to the side wall of the slider away from the limiting post. The top of the filter plate mounting seat is fixed to the filter plate body, and a column is fixed through and fixed to the top of the filter plate body. A vertical rod is fixed to the inner wall of the middle liner via a horizontal plate. The top of the vertical rod penetrates the bottom of the column and extends into a cavity at the bottom of the column. A compression spring connects the inner edge of the top of the cavity and the outer edge of the top of the vertical rod. This utility model effectively solves the material blockage problem of traditional liners under low-load conditions, helping to improve the performance of related material conveying and processing equipment and reduce production and operating costs.

Description

Technical Field

[0001] This utility model relates to the field of liner technology, specifically a low-load liner for anti-clogging material. Background Technology

[0002] A coal mill is a machine that crushes and grinds coal into pulverized coal. It is an important auxiliary equipment for pulverized coal boilers. The coal grinding process is a process in which coal is crushed and its surface area is continuously increased. According to the rotation speed of the working parts, coal mills can be divided into three types: low-speed coal mills, medium-speed coal mills, and high-speed coal mills. Low-speed coal mills are mainly drum-type steel ball coal mills. It is a rotating cylindrical or conical drum (also called a cylinder) with steel balls (grinding media) inside. The rotation speed of the drum is 15 to 25 revolutions per minute. During operation, the steel balls (grinding media) inside the drum continuously impact and squeeze the coal, grinding the coal into pulverized coal. Then, hot air is introduced into the drum to dry the coal and send the pulverized coal out. After separation by a separator, pulverized coal of a certain particle size is sent to the pulverized coal bin through the barrel or directly to the pulverized coal burner.

[0003] The existing low-load liner plates can become clogged during use, affecting the normal operation of the equipment.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] The purpose of this invention is to provide a low-load liner for preventing clogging, so as to solve the problem mentioned in the background art that existing low-load liners are prone to clogging during use.

[0006] To solve the above-mentioned technical problems, this utility model provides a low-load liner for anti-clogging materials, including a liner body. The liner body includes an upper liner, a middle liner, and a lower liner fixed from top to bottom. The bottom of the inner wall of the upper liner is provided with an installation groove. A vertically arranged limiting post is fixed in the installation groove. A slider is sleeved and slidably connected to the outside of the limiting post. A filter plate mounting seat is fixed to the side wall of the slider away from the limiting post. The top of the filter plate mounting seat is fixed to the filter plate body. A column is fixed through and through the top of the filter plate body. A vertical rod is fixed to the inner wall of the middle liner through a horizontal plate. The top of the vertical rod passes through the bottom of the column and extends into the cavity at the bottom of the column. A compression spring is connected between the top inner wall edge of the cavity and the top outer wall edge of the vertical rod. A pressure plate and a switch are fixed at the center of the top inner wall of the cavity and the center of the top outer wall of the vertical rod, respectively. A fan is installed on the inner wall of the lower liner. The switch is electrically connected to the fan. When particulate matter clogs and accumulates on the filter plate mounting base, the filter plate mounting base and pressure plate move down, activating the switch. The fan is then powered on and blows air upwards from the bottom of the filter plate mounting base to prevent material blockage and ensure normal operation of the equipment.

[0007] Furthermore, the top of the upper enclosure is fixed with mounting ears, and the liner body is fixed to the inner wall of the feeding channel of the barrel through the mounting ears. A return channel is provided on one side of the top opening of the upper enclosure, located on the inner wall of the feeding channel. A solenoid valve one is installed on the inner wall of the return channel, and a solenoid valve two is installed above the return channel on the inner wall of the feeding channel. The switch, solenoid valve one, and solenoid valve two are electrically connected to the same microcontroller. When the filter plate mounting seat and the pressure plate move down to activate the switch, solenoid valve two closes, the feeding channel closes, and solenoid valve one opens. The material blocked on the filter plate mounting seat is removed through the return channel for reuse under the back-blowing force of the fan. After a period of time, the filter plate mounting seat and the pressure plate move up to close the switch, solenoid valve two opens, and solenoid valve one closes.

[0008] Furthermore, a U-shaped guide frame is fixed at the top edge of the filter plate body. The top of the guide frame's side wall is slidably and tightly connected to the inner wall of the mounting groove via a sealing ring, and the column is installed inside the guide frame. The design of the guide frame and mounting groove at the top of the filter plate body prevents raw materials from passing through the gap between them and affecting the filtration effect.

[0009] Furthermore, an inclined wedge block is fixed inside the bottom wall of the mounting groove. The design of the wedge block prevents material from accumulating in the mounting groove and affecting the downward movement of the slider, and prevents the filter plate mounting base, filter plate body, and column from failing to move down to a sufficient stroke, thus preventing the switch from being unable to open.

[0010] Furthermore, the bottom inner wall of the lower enclosure is provided with a fan mounting groove, and the fan is installed in the fan mounting groove. The air outlet of the fan is set towards the bottom opening of the filter holes on the filter plate body. This facilitates the blowing out of the material in the filter holes that are blocked at the top of the filter plate body, preventing the filter plate body from becoming clogged.

[0011] Furthermore, a horizontally arranged cross plate is fixed to the bottom of the inner wall of the lower enclosure plate, and a conical block is fixed to the top of the cross plate. The airflow blown by the fan passes through the conical block and then faces the bottom opening of the filter holes on the filter plate body. There is a gap between the conical block and the fan fixing groove. The filtered material passes through the gap between the conical block and the fan fixing groove, ensuring the normal operation of the device.

[0012] Furthermore, the number of the mounting slot, limiting post, slider, vertical rod, column, and fan fixing slot are all four, and the four sets of components are evenly distributed in a circular array. This improves the stability of the device's operation.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Through the unique design of the filter plate mounting base and filter plate body, when particulate matter accumulates on the filter plate mounting base, the filter plate mounting base and pressure plate move down to activate the switch, and the fan is powered on to blow air upward from the bottom of the filter plate mounting base. This can effectively prevent material blockage in the filter plate mounting base, ensure the normal operation of the equipment, avoid production interruptions caused by material blockage, and improve production efficiency; the anti-blocking function is significant.

[0015] 2. When the filter plate mounting base and pressure plate move down to activate the switch, solenoid valve two closes, the feeding channel closes, and solenoid valve one opens. The material blocked on the filter plate mounting base is moved out through the return channel for reuse under the back blowing force of the blower, reducing material waste, lowering production costs, and also benefiting the environment; thus realizing material recycling and reuse.

[0016] 3. The guide frame and mounting groove on the top of the filter plate body prevent raw materials from passing through the gap between them and affecting the filtration effect. The wedge-shaped block inside the bottom wall of the mounting groove prevents material from accumulating in the mounting groove and affecting the downward movement of the slider. The relevant structure of the lower enclosure plate facilitates the blowing out of the material in the filter holes blocked on the top of the filter plate body and ensures that the filtered material passes through normally. All components work together to improve the stability and reliability of the device operation and extend the service life of the equipment. Attached Figure Description

[0017] Figure 1 Exploded view of a low-load liner for an anti-clogging material;

[0018] Figure 2 A three-dimensional view of a low-load liner for an anti-clogging material;

[0019] Figure 3 A schematic diagram of the connection between the upper and middle liner plates in a low-load liner plate for a type of anti-clogging material;

[0020] Figure 4 This is a schematic diagram of the connection between the vertical rod and the column in a low-load liner for a type of anti-clogging material.

[0021] In the picture:

[0022] 10. Upper panel; 11. Mounting slot; 12. Mounting lug;

[0023] 20. Middle panel; 21. Horizontal panel; 22. Vertical bar; 23. Switch;

[0024] 30. Lower enclosure panel; 31. Conical block; 32. Fan mounting slot;

[0025] 40. Filter plate mounting base; 41. Filter plate body; 42. Slider;

[0026] 50. Column; 51. Cavity; 52. Pressure plate; 53. Compression spring;

[0027] 60. Limiting post; 61. Wedge block. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-4 This utility model provides a technical solution: a low-load liner for anti-clogging material, comprising a liner body, the liner body including an upper shroud 10, a middle shroud 20 and a lower shroud 30 fixed from top to bottom, the bottom of the inner wall of the upper shroud 10 is provided with an installation groove 11, a vertically arranged limiting post 60 is fixed in the installation groove 11, a slider 42 is sleeved and slidably connected to the outside of the limiting post 60, a filter plate mounting seat 40 is fixed to the side wall of the slider 42 away from the limiting post 60, and a filter plate body 41 is fixed to the top of the filter plate mounting seat 40. A column 50 is fixed to the top of body 41; a vertical rod 22 is fixed to the inner wall of middle panel 20 through horizontal plate 21, the top of vertical rod 22 passes through the bottom of column 50 and extends into cavity 51 at the bottom of column 50, a compression spring 53 is connected between the inner edge of the top of cavity 51 and the outer edge of the top of vertical rod 22, a pressure plate 52 and a switch 23 are fixed to the center of the inner top of cavity 51 and the center of the outer top of vertical rod 22 respectively; a fan is installed on the inner wall of lower panel 30, and switch 23 is electrically connected to fan.

[0030] It should be noted that when particulate matter clogs and accumulates on the filter plate mounting base 40, the filter plate mounting base 40 and the pressure plate 52 move down, causing the switch 23 to start. The fan is powered on and blows air upward from the bottom of the filter plate mounting base 40 to prevent the filter plate mounting base 40 from becoming clogged and affecting the normal use of the equipment.

[0031] A low-load liner for preventing material blockage has an upper plate 10 with a mounting ear 12 fixed to the top. The liner body is fixed to the inner wall of the feeding channel of the barrel through the mounting ear 12. A return channel is provided on one side of the top opening of the upper plate 10, located on the inner wall of the feeding channel. A solenoid valve one is installed on the inner wall of the return channel, and a solenoid valve two is installed above the return channel on the inner wall of the feeding channel. The switch 23, solenoid valve one, and solenoid valve two are electrically connected to the same microcontroller.

[0032] It should be noted that when the filter plate mounting base 40 and the pressure plate 52 move down to activate switch 23, solenoid valve 2 closes, the feeding channel closes, and solenoid valve 1 opens. The material blocked on the filter plate mounting base 40 is moved out through the return channel for reuse under the back-blowing force of the blower. After a period of time, the filter plate mounting base 40 and the pressure plate 52 move up to close switch 23, solenoid valve 2 opens, and solenoid valve 1 closes.

[0033] A low-load liner for preventing clogging has a guide frame in the shape of a U-shape fixed at the top edge of the filter plate body 41. The top of the side wall of the guide frame is slidably and tightly connected to the inner wall of the mounting groove 11 by a sealing ring. The column 50 is installed inside the guide frame. The guide frame at the top of the filter plate body 41 and the mounting groove 11 are designed to prevent raw materials from passing through the gap between them and affecting the filtration effect. An inclined wedge block 61 is fixed inside the bottom wall of the mounting groove 11, and a limiting post 60 is fixed to the bottom of the wedge block 61. The design of the wedge block 61 prevents material from accumulating in the mounting groove 11 and affecting the downward movement of the slider 42, and prevents the filter plate mounting seat 40, filter plate body 41 and column 50 from failing to move down to a sufficient stroke, thus preventing the switch 23 from being unable to open.

[0034] A low-load liner for preventing clogging has a fan mounting groove 32 at the bottom of the inner wall of the lower enclosure 30. A fan is installed in the fan mounting groove 32, and the fan outlet faces the bottom opening of the filter holes on the filter plate body 41. This facilitates the blowing out of material blocked in the filter holes at the top of the filter plate body 41, preventing clogging. A horizontally arranged cross plate is fixed to the bottom of the inner side wall of the lower enclosure 30, and a conical block 31 is fixed to the top of the cross plate. The airflow blown by the fan passes through the conical block 31 and faces the bottom opening of the filter holes on the filter plate body 41. There is a gap between the conical block 31 and the fan mounting groove 32. The filtered material passes through the gap between the conical block 31 and the fan mounting groove 32, ensuring normal operation of the device. There are four of each of the following components: mounting groove 11, limiting post 60, slider 42, vertical rod 22, column 50, and fan mounting groove 32. These four sets of components are evenly distributed in a circular array, improving the stability of the device operation.

[0035] Working principle: When the equipment starts running, the material flows in the feeding channel and is filtered by the filter plate body 41. As time goes by, if the particles gradually clog and accumulate on the filter plate mounting seat 40, the filter plate mounting seat 40 will overcome the elastic force of the compression spring 53 and move downward due to the gravity of the material, which will drive the column 50 to move downward, and in turn cause the pressure plate 52 to move downward.

[0036] When the filter plate mounting base 40 and the pressure plate 52 move down to a certain extent, the pressure plate 52 will trigger switch 23, causing switch 23 to start. At this time, after receiving the signal, the microcontroller controls solenoid valve two to close, stopping the feeding channel, while solenoid valve one opens. Simultaneously, the fan installed on the inner wall of the lower enclosure 30 is powered on, and the fan blows air upward from the bottom of the filter plate mounting base 40. The airflow blown by the fan passes through the conical block 31 and then faces the bottom opening of the filter holes on the filter plate body 41, blowing out the material blocking the filter holes of the filter plate body 41. Under the back-blowing force of the fan, the material blocking the filter plate mounting base 40 is moved out through the return channel for reuse.

Claims

1. A low-load liner for anti-clogging material, comprising a liner body, the liner body comprising an upper liner (10), a middle liner (20), and a lower liner (30) fixed from top to bottom, characterized in that: The inner wall of the upper enclosure (10) is provided with an installation groove (11) at the bottom. A vertically arranged limiting post (60) is fixed in the installation groove (11). A slider (42) is sleeved and slidably connected to the outside of the limiting post (60). A filter plate mounting seat (40) is fixed to the side wall of the slider (42) away from the limiting post (60). A filter plate body (41) is fixed to the top of the filter plate mounting seat (40). A column (50) is fixed through and fixed to the top of the filter plate body (41). The inner wall of the middle enclosure (20) is connected by a horizontal plate (21). A vertical rod (22) is fixed, the top of the vertical rod (22) passes through the bottom of the column (50) and extends into the cavity (51) at the bottom of the column (50). A compression spring (53) is connected between the inner edge of the top of the cavity (51) and the outer edge of the top of the vertical rod (22). A pressure plate (52) and a switch (23) are fixed at the center of the inner edge of the top of the cavity (51) and the center of the outer edge of the top of the vertical rod (22), respectively. A fan is installed on the inner wall of the lower enclosure (30), and the switch (23) is electrically connected to the fan.

2. The low-load liner for anti-clogging material as described in claim 1, characterized in that: The top of the upper enclosure (10) is fixed with an mounting ear (12), and the liner body is fixed to the inner wall of the feeding channel of the barrel through the mounting ear (12). A return channel is provided on one side of the top opening of the upper enclosure (10) and located on the inner wall of the feeding channel. A solenoid valve one is installed on the inner wall of the return channel, and a solenoid valve two is installed on the inner wall of the feeding channel above the return channel. The switch (23), solenoid valve one and solenoid valve two are electrically connected to the same microcontroller.

3. The low-load liner for anti-clogging material as described in claim 1, characterized in that: The top edge of the filter plate body (41) is fixed with a guide frame in the shape of a U-shape. The top of the side wall of the guide frame is slidably and tightly connected to the inner wall of the mounting groove (11) by a sealing ring. The column (50) is installed inside the guide frame.

4. The low-load liner for anti-clogging material as described in claim 1, characterized in that: An inclined wedge-shaped block (61) is fixed inside the bottom wall of the mounting groove (11).

5. The low-load liner for anti-clogging material as described in claim 1, characterized in that: The bottom of the inner wall of the lower enclosure (30) is provided with a fan fixing groove (32), and the fan is installed in the fan fixing groove (32). The air outlet of the fan is set towards the bottom opening of the filter hole on the filter plate body (41).

6. The low-load liner for anti-clogging material as described in claim 5, characterized in that: A horizontally arranged cross plate is fixed at the bottom of the inner side wall of the lower enclosure (30), and a conical block (31) is fixed at the top of the cross plate. The airflow blown out by the fan passes through the conical block (31) and then faces the bottom opening of the filter hole on the filter plate body (41). There is a gap between the conical block (31) and the fan fixing groove (32).

7. The low-load liner for anti-clogging material as described in claim 1, characterized in that: The number of the mounting slot (11), limiting post (60), slider (42), vertical rod (22), column (50), and fan fixing slot (32) are all four, and the four sets of components are evenly distributed in a ring array.

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