Overflow discharging device for mill feeding bin

Abstract

The utility model relates to the technical field of mill feeding, in particular to an overflow discharging device for a mill feeding bin. According to the technical scheme, a valve plate is rotationally installed in a machine body, a feeding opening is formed in the top of the machine body, a fixing disc is installed on the outer side of the machine body in a limited mode through a limiting block, a first magnet is embedded in the fixing disc, the valve plate is evenly divided into a plurality of containing cavities through partition plates, and end plates are arranged at the two ends of the valve plate; a second magnet is embedded in the end plate, when the weight of materials in the containing cavity overcomes the attraction magnetic force between the second magnet and the first magnet, the valve plate deflects for discharging, and after the valve plate deflects, the valve plate is attracted and fixed again through the magnetic force between the second magnet and the first magnet. By means of the design of magnetic force limiting and automatic adjustment, stable discharging and continuous operation of materials are achieved. Meanwhile, the device has the advantages of being compact in structure, easy to maintain, safe and reliable, so that the device has wide prospects and advantages in practical application.

Description

Technical Field

[0001] This utility model relates to the field of mill feeding technology, specifically to an overflow discharge device for a mill feeding hopper. Background Technology

[0002] Ball mills are key pieces of equipment for further pulverizing materials after they have been crushed. They are widely used in industries such as cement, silicate products, refractory materials, fertilizers, non-ferrous metal ore beneficiation, and glass and ceramics production for dry or wet grinding of various ores and other grindable materials. Ball mills are suitable for grinding various ores and other materials and are widely used in mineral processing, building materials, and chemical industries.

[0003] Overflow discharge refers to the process where material accumulates to a certain height in a container or equipment, and due to gravity, it naturally flows out from the opening of the container or equipment, forming an overflow. This discharge method does not require external power or forced discharge devices, thus offering advantages such as simple structure and convenient maintenance.

[0004] A search revealed that patent CN202222038573.6 discloses an overflow discharge device for a mill feed hopper. While this device, in operation, connects to a drive pulley via a motor, which in turn connects to a driven pulley via a belt, and a spiral feed auger on a rotating roller is fitted with the inner diameter of the discharge pipe, with the tail end of the spiral feed auger positioned above the discharge port, prevents material overflow and discharge during the feeding process and mill operation. It is simple to operate, performs well, and ensures stable mill operation. However, this device requires a forced discharge mechanism, necessitating external power support. This increases system complexity and energy consumption, potentially raising operating costs. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an overflow discharge device for a mill feed hopper, which solves the problems mentioned in the background art.

[0006] The solution to the above-mentioned technical problems provided by this utility model is as follows:

[0007] An overflow discharge device for a mill feed hopper includes a body, in which a valve plate is rotatably mounted;

[0008] The top of the machine body has a single feed inlet. A limiting block is provided on the outside of the machine body. A fixing plate is installed on the outside of the machine body by limiting the limiting block. A first magnet is embedded in the fixing plate. A partition is provided on the valve plate. The valve plate is evenly divided into multiple receiving cavities by the partition. End plates are provided at both ends of the valve plate. A second magnet is embedded in the end plate. The valve plate is limited by the mutual attraction between the second magnet and the first magnet. When the weight of the material in the receiving cavity overcomes the magnetic attraction between the second magnet and the first magnet, the valve plate deflects to discharge the material. After the valve plate deflects, the valve plate is fixed by the magnetic attraction between the second magnet and the first magnet again.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, the machine body is provided with a guide plate at the feed inlet, and the raw material entering the feed inlet is guided by the guide plate into the receiving cavity of the valve plate.

[0011] The beneficial effects of adopting the above-mentioned further solutions are:

[0012] The guide plate design allows the raw material to be guided along a specific path into the valve plate's receiving cavity after entering the feed inlet, avoiding the scattering and accumulation of the raw material and ensuring that the raw material can enter the feeding device evenly and orderly, thus improving feeding efficiency and accuracy.

[0013] Furthermore, the body has a limiting hole, and the valve plate has a rotating shaft at both ends. The valve plate is rotatably installed in the body through the rotating shaft and the limiting hole.

[0014] The beneficial effects of adopting the above-mentioned further solutions are:

[0015] Through the cooperation of the rotating shaft and the limiting hole, the valve plate can achieve stable rotation inside the machine body. This design not only simplifies the installation and disassembly process of the valve plate, but also improves the flexibility and reliability of the valve plate rotation, ensuring the normal operation of the feeding device.

[0016] Furthermore, a limiting groove is provided on the end plate, and the second magnet is embedded in the end plate through the limiting groove, and the number and position of the second magnet correspond to the number and position of the first magnet.

[0017] The beneficial effects of adopting the above-mentioned further solutions are:

[0018] The design of the limiting groove allows the second magnet to be stably embedded in the end plate, and corresponds to the number and position of the first magnet. This design not only enhances the attraction between the magnets, but also improves the overall stability and reliability of the feeding device, ensuring that the valve plate can be smoothly deflected and repositioned under the weight of the material.

[0019] Furthermore, the fixed plate is provided with a rubber retaining ring, and the first magnet is clamped and limited on the fixed plate by the rubber retaining ring.

[0020] The beneficial effects of adopting the above-mentioned further solutions are:

[0021] The design of the rubber retaining ring not only enhances the connection stability between the first magnet and the fixed plate, but also plays a role in buffering and shock absorption, preventing the magnet from falling off or being damaged due to vibration or impact, and improving the service life and safety of the feeding device.

[0022] Furthermore, a fixing plate is installed on the limiting block by screws, and the fixing plate is fixed by pressing it against the machine body after being limited by the limiting block.

[0023] The beneficial effects of adopting the above-mentioned further solutions are:

[0024] With the cooperation of the fixed pressure plate and the limiting block installed by screws, the fixed plate can be stably installed on the machine body and is not easy to loosen or fall off. This design not only improves the overall stability and reliability of the feeding device, but also simplifies the installation and disassembly process and reduces maintenance costs. At the same time, the design of the fixed pressure plate also protects the fixed plate and magnet, avoiding damage caused by external forces.

[0025] This utility model provides an overflow discharge device for a mill feed hopper. It has the following beneficial effects:

[0026] The device uses the mutual attraction of magnets (first magnet and second magnet) to limit movement, achieving automatic adjustment and fixation of the valve plate. When the material weight reaches a certain level and overcomes the magnetic force, the valve plate can automatically deflect to discharge the material, and then be fixed again by magnetic force. This design simplifies the operation process and improves work efficiency.

[0027] The device has a relatively compact overall structure, and the connections and installation between its various components are designed to be relatively simple, which helps to reduce space occupation and maintenance costs. At the same time, the design of components such as magnets and fixing plates facilitates disassembly and replacement, further reducing maintenance difficulty.

[0028] The guide plate design allows the raw material entering the feed inlet to be smoothly guided into the valve plate's receiving cavity, preventing material accumulation and blockage. Simultaneously, the valve plate is evenly divided into multiple receiving cavities by partitions, which facilitates uniform material distribution and feed control.

[0029] The device achieves automatic adjustment and limiting through magnetic force, requiring no additional power support, thus offering advantages in energy conservation and environmental protection. Furthermore, its compact structure and easy-to-maintain design also contribute to reducing energy consumption and waste generation. Attached Figure Description

[0030] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0031] In the attached diagram:

[0032] Figure 1 This is a schematic diagram of the main appearance of the present utility model;

[0033] Figure 2 This is a schematic cross-sectional view of the body structure of this utility model;

[0034] Figure 3 This is a schematic diagram of the main appearance of the valve plate of this utility model.

[0035] The attached diagram lists the components represented by each number as follows:

[0036] 1. Feed inlet; 101. Guide plate; 2. Valve plate; 201. Partition plate; 202. Receiving cavity; 203. Limiting groove; 204. Second magnet; 205. Rotating shaft; 206. End plate; 3. Limiting block; 4. Fixing plate; 401. Rubber fixing ring; 402. Fixing pressure plate; 5. First magnet; 6. Machine body; 601. Limiting hole. Detailed Implementation

[0037] 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.

[0038] Please see Figures 1 to 3 As shown, the embodiments provided by this utility model are as follows:

[0039] Example 1

[0040] An overflow discharge device for a mill feed hopper includes a body 6, within which a valve plate 2 is rotatably mounted. The body 6 has limit holes 601. Rotating shafts 205 are located at both ends of the valve plate 2. The valve plate 2 is rotatably mounted within the body 6 via the interaction of the rotating shafts 205 and the limit holes 601. Through the cooperation of the rotating shafts 205 and the limit holes 601, the valve plate 2 can achieve stable rotation within the body 6. This design not only simplifies the installation and disassembly process of the valve plate 2 but also improves the flexibility and reliability of its rotation, ensuring the normal operation of the discharge device. A feed inlet 1 is located at the top of the body 6, and a guide plate 101 is located at the feed inlet 1. Raw materials entering the feed inlet 1 are guided by the guide plate 101 into the valve plate 2. Inside the receiving cavity 202, the guide plate 101 is designed to guide the raw material along a specific path to the receiving cavity 202 of the valve plate 2 after it enters the feed inlet 1. This prevents the raw material from scattering and accumulating, ensuring that the raw material can enter the feeding device evenly and orderly, thus improving feeding efficiency and accuracy. A limiting block 3 is provided on the outer side of the machine body 6. A fixing plate 4 is mounted on the outer side of the machine body 6 via the limiting block 3. A fixing pressure plate 402 is mounted on the limiting block 3 via screws. After the fixing plate 4 is mounted on the machine body 6 via the limiting block 3, it is pressed and fixed by the fixing pressure plate 402. Through the cooperation of the fixing pressure plate 402 and the limiting block 3, the fixing plate 4 can be stably mounted on the machine body 6 and is not easily loosened or detached. This design not only improves the overall stability and reliability of the feeding device but also simplifies the installation and disassembly process, reducing maintenance costs. At the same time, the design of the fixing pressure plate 402 also protects the fixing plate 4 and the magnet, preventing damage caused by external forces.

[0041] Example 2

[0042] To facilitate overflow discharge via valve plate 2, for example, such as Figures 1 to 3As shown, this utility model also includes: a first magnet 5 embedded in a fixed plate 4, a rubber fixing ring 401 provided on the fixed plate 4, the first magnet 5 being clamped and limited on the fixed plate 4 by the rubber fixing ring 401, the design of the rubber fixing ring 401 not only enhances the connection stability between the first magnet 5 and the fixed plate 4, but also plays a role in buffering and shock absorption, avoiding magnet detachment or damage due to vibration or impact, and improving the service life and safety of the feeding device; a partition 201 provided on the valve plate 2, the valve plate 2 being evenly divided into multiple receiving cavities 202 by the partition 201; end plates 206 provided at both ends of the valve plate 2, the end plates 206 having limiting grooves 203, the second magnet 204 being embedded and installed on the end plates 206 through the limiting grooves 203, and the number of second magnets 204 and the The position corresponds to the number and position of the first magnet 5. The design of the limiting groove 203 allows the second magnet 204 to be stably embedded in the end plate 206, and corresponds to the number and position of the first magnet 5. This design not only enhances the attraction between the magnets, but also improves the overall stability and reliability of the feeding device, ensuring that the valve plate 2 can be smoothly deflected and repositioned under the action of the material weight. The end plate 206 is embedded with the second magnet 204. The valve plate 2 is limited by the mutual attraction between the second magnet 204 and the first magnet 5. When the weight of the material in the receiving cavity 202 overcomes the attraction magnetic force between the second magnet 204 and the first magnet 5, the valve plate 2 deflects to feed the material. After the valve plate 2 deflects, the valve plate 2 is fixed again by the magnetic attraction between the second magnet 204 and the first magnet 5.

[0043] Working principle:

[0044] Material enters the device through the feed inlet 1 at the top of the machine body 6. Guided by the guide plate 101, the material is directed into the receiving cavity 202 of the valve plate 2. The design of the guide plate 101 ensures that the material can flow into the receiving cavity 202 evenly and smoothly.

[0045] The valve plate 2 has end plates 206 at both ends, and a second magnet 204 is embedded in the end plate 206. Simultaneously, a first magnet 5 is embedded in the fixed plate 4, and the number and position of the first magnet 5 correspond to the second magnet 204. When the second magnet 204 and the first magnet 5 attract each other, the valve plate 2 is in a stationary state, thus confining the valve plate 2 within the machine body 6. As the weight of the material in the receiving cavity 202 increases, when the weight of the material overcomes the magnetic attraction between the second magnet 204 and the first magnet 5, the valve plate 2 will begin to deflect. The deflected valve plate 2 allows the material in the receiving cavity 202 to flow out, achieving material discharge. After the material flows out, the weight in the receiving cavity 202 decreases, and the valve plate 2 returns to its original position under magnetic force, and is fixed again by the attraction between the second magnet 204 and the first magnet 5.

[0046] Since the deflection of valve plate 2 is a result of the material's weight overcoming the magnetic force, the feeding process is relatively stable and controllable. Simultaneously, the uniform division of the receiving cavity 202 and the guiding effect of guide plate 101 also ensure uniform material feeding. The design of this device enables continuous feeding and unloading operations, improving production efficiency.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An overflow discharge device for a mill feed hopper, comprising a body (6), wherein a valve plate (2) is rotatably installed inside the body (6), characterized in that: The top of the machine body (6) has a feed inlet (1). A limiting block (3) is provided on the outer side of the machine body (6). A fixing plate (4) is installed on the outer side of the machine body (6) by limiting the limiting block (3). A first magnet (5) is embedded in the fixing plate (4). A partition (201) is provided on the valve plate (2). The valve plate (2) is evenly divided into multiple receiving cavities (202) by the partition (201). End plates (206) are provided at both ends of the valve plate (2). The end plate (206) is inlaid with a second magnet (204). The valve plate (2) is limited by the mutual attraction between the second magnet (204) and the first magnet (5). When the weight of the material in the receiving cavity (202) overcomes the magnetic attraction between the second magnet (204) and the first magnet (5), the valve plate (2) deflects to discharge the material. After the valve plate (2) deflects, the valve plate (2) is again attracted and fixed by the magnetic attraction between the second magnet (204) and the first magnet (5).

2. The overflow discharge device for the mill feed hopper according to claim 1, characterized in that: The machine body (6) is provided with a guide plate (101) at the feed inlet (1). The raw material entering the feed inlet (1) is guided by the guide plate (101) into the receiving cavity (202) of the valve plate (2).

3. The overflow discharge device for the mill feed hopper according to claim 1, characterized in that: The body (6) has a limiting hole (601), and the valve plate (2) has a rotating shaft (205) at both ends. The valve plate (2) is rotatably installed in the body (6) through the rotating shaft (205) and the limiting hole (601).

4. The overflow discharge device for the mill feed hopper according to claim 1, characterized in that: The end plate (206) has a limiting groove (203) and the second magnet (204) is embedded in the end plate (206) through the limiting groove (203). The number and position of the second magnet (204) correspond to the number and position of the first magnet (5).

5. The overflow discharge device for the mill feed hopper according to claim 1, characterized in that: The fixed plate (4) is provided with a rubber fixing ring (401), and the first magnet (5) is clamped and limited on the fixed plate (4) by the rubber fixing ring (401).

6. The overflow discharge device for a mill feed hopper according to claim 1, characterized in that: A fixing plate (402) is installed on the limiting block (3) by screws. The fixing plate (4) is installed on the machine body (6) by the limiting block (3) and then fixed by the fixing plate (402).

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