Powder concentrator for cement production

Abstract

The utility model relates to the technical field of cement production, in particular to a powder concentrator for cement production, which is characterized in that a partition plate main body is mounted on a bottom plate of a feed hopper and is used for sealing the bottom of the feed hopper, a rotating shaft component is mounted at one end of the partition plate main body, and an inner shaft body is arranged in an outer shaft body and is rotationally connected with the inner wall of the feed hopper; when the pressure applied to the partition plate main body by stacked materials is smaller than the stress of the reset torsion spring, the partition plate main body seals the bottom of the feeding hopper, and along with continuous stacking of the materials, the middle connecting block is fixedly connected with the inner wall of the partition plate main body. When the pressure applied to the partition plate main body by the stacked materials is larger than the stress of the reset torsion spring, the partition plate main body drives the middle connecting block to rotate at an angle, so that the materials are guided into the powder selecting machine body, the reset torsion spring drives the partition plate main body to return to the original position at the moment, and the operation is repeated, so that the purpose of uniform discharging is achieved. And excessive materials in partial areas in the powder concentrator body are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cement production, in particular to a powder classifier for cement production. Background Art

[0002] The powder classifier for cement production is a key equipment in the cement production process. The cement powder classifier is a latest technology product developed based on the most advanced international powder selection principle and using aerodynamic analysis methods. This product breaks through the "coarse and fine powder" separation theory of conventional closed-circuit grinding systems and "divides" the material into three parts, namely coarse powder, medium coarse powder and fine powder. The product has a simple system configuration and low cost, and can greatly increase the output of the mill. Its internal structure is reasonable and the powder selection effect is remarkable. It is the preferred product to improve the product quality of the grinding system after the implementation of the new cement standard, and it leads the new trend of powder classifier technology innovation.

[0003] However, after a large amount of material is fed into the existing powder classifier, it is easy to cause excessive material in some areas inside, so that the granular material in this area cannot be fully affected by the centrifugal force and air resistance, thereby affecting the sorting effect and insufficient practicality.

[0004] In view of the above problems, the utility model proposes a powder classifier for cement production. Utility Model Content

[0005] The purpose of the utility model is to provide a powder classifier for cement production, in which a partition body is installed through the bottom plate of the feed hopper, the partition body is used to seal the bottom of the feed hopper, a rotating shaft assembly is installed at one end of the partition body, an inner shaft body is arranged inside the outer shaft body, the inner shaft body is rotatably connected to the inner wall of the feed hopper, a reset torsion spring is sleeved on the outer wall of the inner shaft body, one end of the reset torsion spring is fixedly connected to a center connecting block, and the end of the center connecting block away from the reset torsion spring is fixedly connected to the partition body, thereby solving the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a powder classifier for cement production, comprising a powder classifier body and a power body installed at one end of the powder classifier body, the upper end of the powder classifier body is connected to a feed hopper, the bottom plate of the feed hopper is installed with a partition body, the partition body is used to seal the bottom of the feed hopper, one end of the partition body is installed with a rotating shaft assembly, the rotating shaft assembly includes an outer shaft body one end of which is fixedly connected to the inner wall of the feed hopper, an inner shaft body is arranged inside the outer shaft body, the inner shaft body is rotatably connected to the inner wall of the feed hopper, the outer wall of the inner shaft body is sleeved with a reset torsion spring, one end of the reset torsion spring is fixedly connected to a center connecting block, and the end of the center connecting block away from the reset torsion spring is fixedly connected to the partition body.

[0007] Furthermore, the middle connecting block passes through the inner wall of the outer shaft body, and the middle connecting block is rotatably connected to the inner wall of the outer shaft body.

[0008] Furthermore, when the return torsion spring is in a relaxed state, the partition body seals the bottom of the feed hopper.

[0009] Furthermore, a mounting block is fixedly connected to the inner wall of the opening of the feed hopper, a control ring is rotatably connected to the upper wall of the mounting block, and a threaded rod is fixedly connected to the lower end of the control ring.

[0010] Furthermore, a movable plate is threadedly connected to the outer wall of the threaded rod, a connecting column is fixedly connected to the lower end of the movable plate, and a lower pressing block is fixedly connected to the lower end of the connecting column.

[0011] Furthermore, the movable plate is slidably connected to the inner wall of the mounting block, and the movable plate is slidably sleeved on the outer wall of the threaded rod.

[0012] Furthermore, when the movable plate is at the lower end opening of the inner wall of the mounting block, the pressing block presses down the partition body, so that the reset torsion spring is in a tensioned state.

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

[0014] The utility model provides a powder classifier for cement production. When materials enter the feed hopper, they will accumulate on the upper wall of the partition body. When the pressure of the accumulated materials on the partition body is less than the stress of the reset torsion spring, the partition body seals the bottom of the feed hopper. As the materials are continuously accumulated, until the pressure of the accumulated materials on the partition body is greater than the stress of the reset torsion spring, the partition body will drive the middle connection block to rotate at an angle, thereby introducing the materials into the powder classifier body. At this time, the reset torsion spring drives the partition body to return to its original position, and the above operation is repeated, thereby achieving the purpose of uniform material discharge and avoiding excessive materials in some areas inside the powder classifier body. This solves the problem that the existing powder classifier is prone to excessive materials in some areas inside after a large amount of feeding, so that the granular materials in this area cannot be fully affected by the centrifugal force and air resistance, thereby affecting the sorting effect and insufficient practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall planar structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the feed hopper of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the rotating shaft assembly of the utility model.

[0019] In the figure: 1. powder selection machine body; 2. power body; 3. feed hopper; 4. partition body; 5. shaft assembly; 51. outer shaft body; 52. inner shaft body; 53. reset torsion spring; 54. middle connecting block; 6. mounting block; 7. control ring; 8. threaded rod; 9. movable plate; 10. connecting column; 11. lower pressure block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 4 In order to solve the problem that the existing powder classifier is prone to excessive material in some areas inside after a large amount of material is fed, so that the granular material in this area cannot be fully affected by the centrifugal force and air resistance, thus affecting the sorting effect and insufficient practicality, the following preferred technical solutions are provided:

[0022] A powder classifier for cement production comprises a powder classifier body 1 and a power body 2 installed at one end of the powder classifier body 1, the upper end of the powder classifier body 1 is connected to a feed hopper 3, the bottom plate of the feed hopper 3 is installed with a partition body 4, the partition body 4 is used to seal the bottom of the feed hopper 3, one end of the partition body 4 is installed with a shaft assembly 5, the shaft assembly 5 comprises an outer shaft body 51 fixedly connected to the inner wall of the feed hopper 3 at one end, an inner shaft body 52 is arranged inside the outer shaft body 51, the inner shaft body 52 is rotatably connected to the inner wall of the feed hopper 3, a reset torsion spring 53 is sleeved on the outer wall of the inner shaft body 52, one end of the reset torsion spring 53 is fixedly connected to a center connection block 54, and the end of the center connection block 54 away from the reset torsion spring 53 is fixedly connected to the partition body 4.

[0023] The middle connecting block 54 penetrates the inner wall of the outer shaft body 51 , and the middle connecting block 54 is rotatably connected to the inner wall of the outer shaft body 51 . The return torsion spring 53 is in a relaxed state, and the partition body 4 seals the bottom of the feed hopper 3 .

[0024] The inner wall of the opening of the feed hopper 3 is fixedly connected with a mounting block 6, the upper wall of the mounting block 6 is rotatably connected with a control ring 7, the lower end of the control ring 7 is fixedly connected with a threaded rod 8, the outer wall of the threaded rod 8 is threadedly connected with a movable plate 9, the lower end of the movable plate 9 is fixedly connected with a connecting column 10, the lower end of the connecting column 10 is fixedly connected with a pressing block 11, the movable plate 9 is slidably connected to the inner wall of the mounting block 6, the movable plate 9 is slidably sleeved on the outer wall of the threaded rod 8, when the movable plate 9 is at the lower end opening of the inner wall of the mounting block 6, the pressing block 11 presses down the partition body 4, so that the reset torsion spring 53 is in a tensioned state.

[0025] Specifically, the material is transported to the cavity of the feed hopper 3 through the conveying pipe, and then enters the powder selection machine body 1 through the feed hopper 3 for grinding and powder selection operation. When the material enters the feed hopper 3, it will accumulate on the upper wall of the partition body 4. When the pressure of the accumulated material on the partition body 4 is less than the stress of the reset torsion spring 53, the partition body 4 seals the bottom of the feed hopper 3. As the material continues to accumulate, until the pressure of the accumulated material on the partition body 4 is greater than the stress of the reset torsion spring 53, the partition body 4 will drive the middle block 54 to rotate, thereby introducing the material into the powder selection machine body 1. At this time, the reset torsion spring 53 drives the partition body 4 to return to its original position, and repeats the above operation, thereby achieving the purpose of uniform material discharge, avoiding excessive material in some areas inside the powder selection machine body 1, and solving the problem that the existing powder selection machine is prone to excessive material in some areas inside after a large amount of feeding, so that the granular material in this area cannot be fully affected by the centrifugal force and air resistance, thereby affecting the sorting effect and insufficient practicality.

[0026] When blockage occurs at the sealing part of the partition body 4, the control ring 7 can be rotated, and the control ring 7 drives the threaded rod 8 to rotate. The threaded rod 8 makes the movable plate 9 move downward on the inner wall of the mounting block 6, thereby driving the connecting column 10 to move downward. The connecting column 10 drives the pressing block 11 to press down the partition body 4, and directly penetrate the bottom of the feed hopper 3, so that the blocked material can be quickly unblocked, the effect is remarkable, and the work efficiency is guaranteed.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A powder classifier for cement production, comprising a powder classifier body (1), and a power body (2) installed at one end of the powder classifier body (1), characterized in that: The upper end of the powder selection machine body (1) is connected to a feed hopper (3), and a partition body (4) is installed on the bottom plate of the feed hopper (3). The partition body (4) is used to seal the bottom of the feed hopper (3). One end of the partition body (4) is installed with a rotating shaft assembly (5). The rotating shaft assembly (5) includes an outer shaft body (51) whose one end is fixedly connected to the inner wall of the feed hopper (3). An inner shaft body (52) is arranged inside the outer shaft body (51). The inner shaft body (52) is rotatably connected to the inner wall of the feed hopper (3). The outer wall of the inner shaft body (52) is sleeved with a reset torsion spring (53), and one end of the reset torsion spring (53) is fixedly connected to a middle connecting block (54). The end of the middle connecting block (54) away from the reset torsion spring (53) is fixedly connected to the partition body (4).

2. A powder classifier for cement production according to claim 1, characterized in that: The middle connection block (54) penetrates the inner wall of the outer shaft body (51), and the middle connection block (54) is rotatably connected to the inner wall of the outer shaft body (51).

3. A powder classifier for cement production according to claim 1, characterized in that: When the return torsion spring (53) is in a relaxed state, the partition body (4) seals the bottom of the feed hopper (3).

4. A powder classifier for cement production according to claim 1, characterized in that: The inner wall of the opening of the feed hopper (3) is fixedly connected to a mounting block (6), the upper wall of the mounting block (6) is rotatably connected to a control ring (7), and the lower end of the control ring (7) is fixedly connected to a threaded rod (8).

5. A powder classifier for cement production according to claim 4, characterized in that: The outer wall of the threaded rod (8) is threadedly connected to a movable plate (9), the lower end of the movable plate (9) is fixedly connected to a connecting column (10), and the lower end of the connecting column (10) is fixedly connected to a lower pressing block (11).

6. A powder classifier for cement production according to claim 5, characterized in that: The movable plate (9) is slidably connected to the inner wall of the mounting block (6), and the movable plate (9) is slidably sleeved on the outer wall of the threaded rod (8).

7. A powder classifier for cement production according to claim 6, characterized in that: When the movable plate (9) is located at the lower end opening of the inner wall of the mounting block (6), the pressing block (11) presses down the partition body (4), so that the return torsion spring (53) is in a tensioned state.

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