Cement grinding mill inner cavity separation structure

Abstract

The utility model relates to the technical field of cement grinding mills, and discloses a cement grinding mill inner cavity partition structure which comprises a connecting assembly, a partition plate assembly is installed at the upper end of the connecting assembly, an inner screen plate is installed at the upper end of the partition plate assembly, inner screen holes are formed in the inner screen plate, and an outer screen plate is installed at the front ends of the inner screen holes. The inner sieve plate and the outer sieve plate form a double-layer sieve pore structure, the sizes of sieve pores at the upper ends of the inner sieve plate and the outer sieve plate are different, the inner sieve pores are radially distributed, the inner sieve pores are designed to be trapezoidal, the upper openings of the sieve pores are small, and the lower openings of the sieve pores are large. The utility model has the advantages of solving the technical problems of unsmooth ventilation in the mill, blocked material flow, worsened working condition, uncontrolled production quality and the like caused by the fact that the cement production efficiency and stability are influenced, and the energy consumption and the cost of cement production are increased and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of cement mills, in particular to a cement mill inner cavity partition structure. Background Art

[0002] Cement is an indispensable basic material in the construction industry. In its production process, grinding is one of the most important links, which directly affects the quality, output and energy consumption of cement. In the cement grinding process, the partition plate and the discharge grate plate are key components for controlling material flow and ventilation. Their function is to grade and transport the materials inside the mill to ensure the normal operation of the mill. Their performance and structure determine the distribution, circuit, particle size, temperature and other working parameters of the materials in the mill. However, in actual production, due to the limitations of process and material, the traditional cast partition plates and discharge grate plates often have grate clogging, resulting in poor ventilation in the mill, obstructed material flow, deterioration of working conditions, and uncontrolled production quality. These problems not only affect the efficiency and stability of cement production, but also increase the energy consumption and cost of cement production.

[0003] The existing referenceable Chinese utility model patent with announcement number: CN215029531U discloses a partition plate of an anti-blocking cement mill, including a fixed frame, a device box is fixedly connected to the middle of the front top of the fixed frame, a double-headed motor is fixedly connected to the middle of the inner wall of the bottom end of the device box, the output ends on the left and right sides of the double-headed motor are fixedly connected to one end of the rotating rod, the other end of the rotating rod is fixedly connected to a first bevel gear, the top of the outer end of the first bevel gear is meshed and connected to a second bevel gear, and the internal through hole of the second bevel gear is fixedly connected to a screw. In the utility model, the fan is moved in the horizontal and vertical directions by the double-headed motor, and the impurities in the through hole on the partition plate body are sucked into the storage box by the fan, so as to prevent the through hole on the partition plate body from being blocked, and the partition plate body is conveniently disassembled and installed by the T-shaped slider on the partition plate body and the T-shaped slide groove on the fixed frame, which is worthy of vigorous promotion.

[0004] Based on the search of the above patents and combined with the equipment in the prior art, it was found that traditional cast partition plates often have clogged grate seams due to process and material limitations, resulting in poor ventilation in the mill, obstructed material flow, deteriorated operating conditions, uncontrolled production quality and other problems. These problems not only affect the efficiency and stability of cement production, but also increase the energy consumption and cost of cement production. The existence of these problems affects the use of the device. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a cement mill inner cavity partition structure, which has the advantage of effectively preventing the traditional cast partition plates from being frequently clogged in the grate seams due to limitations in process and materials, leading to problems such as poor ventilation in the mill, obstructed material flow, deteriorated working conditions, and uncontrolled production quality. These problems not only affect the efficiency and stability of cement production, but also increase the energy consumption and cost of cement production, thereby solving the above-mentioned technical problems.

[0007] Technical Solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cement mill inner cavity partition structure, comprising a connecting assembly, the upper end of which is equipped with a partition assembly for separating the grinding materials and subsequently transporting them;

[0009] An inner sieve plate is installed at the upper end of the partition assembly, and inner sieve holes are installed inside the inner sieve plate. An outer sieve plate is installed at the front end of the inner sieve holes, and the outer sieve plate facilitates the installation and connection of the outer sieve holes at the upper end.

[0010] As a preferred technical solution of the present utility model, a mounting frame is installed at the upper end of the connecting assembly, and a connecting groove is installed inside the mounting frame, and the mounting frame facilitates the connection and installation of the internal connecting groove.

[0011] As a preferred technical solution of the utility model, an outer sieve hole is installed at the upper end of the partition assembly, and the outer sieve hole is convenient for transmitting and passing the grinding material.

[0012] As a preferred technical solution of the present utility model, the partition assembly is installed inside the connecting groove in the connecting assembly, and the overall size of the partition assembly is smaller than the installation frame in the connecting assembly.

[0013] As a preferred technical solution of the utility model, the installation frame is an annular structure, the installation frame is installed on the upper end of the inner sieve plate, and the outer sieve plate is installed inside the connecting groove.

[0014] As the preferred technical solution of the utility model, the inner sieve plate and the outer sieve plate form a double-layer sieve hole structure, the sieve holes on the upper ends of the inner sieve plate and the outer sieve plate have different sizes, the inner sieve holes are radially distributed, and the inner sieve holes are designed to be trapezoidal, with a small upper opening and a large lower opening.

[0015] As a preferred technical solution of the utility model, the outer sieve hole is designed in a wave-like manner, and the curvature of the sieve hole is increased while ensuring the sieve area. The inner sieve plate and the outer sieve plate are made of NM400 wear-resistant steel plate material.

[0016] Compared with the prior art, the utility model provides a cement mill inner cavity partition structure with the following features:

[0017] Beneficial effects:

[0018] 1. The utility model designs a new double-layer sieve plate structure by setting the device components. The sieve holes on the upper ends of the inner and outer sieve plates have different sizes. The inner sieve holes are radially distributed. The inner sieve holes are designed to be trapezoidal, with a small opening at the upper part and a large opening at the lower part, which can increase the sieve hole area and reduce the risk of clogging. The outer sieve holes are designed to be wavy. On the premise of ensuring the sieve area, the sieve hole curvature is increased to reduce material clogging. The partition plate is made of NM400 wear-resistant steel plate, which makes the partition plate have the characteristics of high strength, toughness and wear resistance. The frame structure increases its through-hole rate and through-hole rate ... The device can effectively control the ventilation and material passing capacity in the mill, improve the quality and efficiency of cement grinding, reduce the energy consumption and cost of cement production, improve the intelligent manufacturing level of cement production, enhance the innovation ability of the cement industry, effectively prevent or reduce the clogging of the grate seams, improve the efficiency and quality of cement grinding, and reduce energy consumption and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structural connection components of the utility model;

[0021] Figure 3 This is a schematic diagram of the structural partition assembly of the utility model;

[0022] Wherein: 1. connection assembly; 101. installation frame; 102. connection groove; 2. partition assembly; 201. inner sieve plate; 202. inner sieve hole; 203. outer sieve plate; 204. outer sieve hole. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0024] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figure 1 - Figure 3 In this embodiment, a cement mill inner cavity partition structure includes: a connecting component 1, a partition component 2 is installed on the upper end of the connecting component 1, an inner sieve plate 201 is installed on the upper end of the partition component 2, and an inner sieve hole 202 is installed inside the inner sieve plate 201, an outer sieve plate 203 is installed at the front end of the inner sieve hole 202, the partition component 2 is installed inside the connecting groove 102 in the connecting component 1, and the overall size of the partition component 2 is smaller than the installation frame 101 in the connecting component 1.

[0027] Through the above structure; the connecting component 1 facilitates the installation of the internal sieve plate, and facilitates the subsequent connection of the outer sieve plate 203 with the inner sieve plate 201, and the partition assembly 2 facilitates the passage of the crushed cement particles through the internal double-layer sieve plate, and facilitates the subsequent reduction of the overall blockage of the partition.

[0028] See also Figure 1 - Figure 3 A mounting frame 101 is installed at the upper end of the connecting component 1, and a connecting groove 102 is installed inside the mounting frame 101. The mounting frame 101 is a ring structure. The mounting frame 101 is installed at the upper end of the inner sieve plate 201, and the outer sieve plate 203 is installed inside the connecting groove 102.

[0029] Through the above structure: by installing the installation frame 101 , it is convenient to connect and install the internal connecting groove 102 , and the connecting groove 102 is convenient to fix the outer sieve plate 203 to the upper end of the inner sieve plate 201 .

[0030] See also Figure 1 - Figure 3 An outer sieve hole 204 is installed at the upper end of the partition assembly 2, and the inner sieve plate 201 and the outer sieve plate 203 form a double-layer sieve hole structure. The sieve holes on the upper ends of the inner sieve plate 201 and the outer sieve plate 203 are different in size. The inner sieve holes 202 are radially distributed. The inner sieve holes 202 are designed to be trapezoidal, with a small opening at the upper part and an opening at the lower part. The outer sieve holes 204 are wave-shaped. Under the premise of ensuring the screening area, the curvature of the sieve holes is increased. The inner sieve plate 201 and the outer sieve plate 203 are made of NM400 wear-resistant steel plate material.

[0031] Through the above structure: by installing the inner sieve plate 201, it is convenient to connect the inner sieve hole 202 at the upper end, and the inner sieve hole 202 is convenient for the intermittent transmission of the ground raw materials. The outer sieve plate 203 is convenient to install and connect the outer sieve hole 204 at the upper end, and the outer sieve hole 204 is convenient for the transmission of the ground materials.

[0032] When in use, first, the original partition plate is designed as a new double-layer sieve plate structure. The inner sieve holes 202 and the outer sieve holes 204 at the upper ends of the outer sieve plates 201 and the inner sieve plates 203 are different in size. The inner sieve holes 202 are radially distributed and are of a trapezoidal structure. The upper opening of the inner sieve holes 202 is small and the lower opening is large, which can increase the sieve hole area and reduce the risk of blockage. The outer sieve holes 204 are wavy in shape. On the premise of ensuring the screen area, the sieve hole curvature is increased to reduce material blockage. The inner sieve plates 201 and the outer sieve plates 203 are made of NM400 wear-resistant steel plates, so that the partition plates have the characteristics of high strength, toughness and wear resistance. The frame structure is designed through process layout to increase its through-porosity, ventilation and material passing capacity and anti-blocking performance, improve the distribution, circuit, particle size and temperature of the material in the mill, and improve its processing accuracy, sieve hole uniformity and assembly convenience by optimizing the cutting process, thereby reducing its weight, occupied space and structural complexity.

[0033] 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 cement mill inner cavity partition structure, characterized in that: include: A connecting component (1), wherein a partition component (2) is installed at the upper end of the connecting component (1), an inner sieve plate (201) is installed at the upper end of the partition component (2), an inner sieve hole (202) is installed inside the inner sieve plate (201), and an outer sieve plate (203) is installed at the front end of the inner sieve hole (202).

2. A cement mill inner cavity partition structure according to claim 1, characterized in that: The upper end of the connection assembly (1) is provided with a mounting frame (101), and a connection groove (102) is provided inside the mounting frame (101).

3. The cement mill inner cavity partition structure according to claim 1, characterized in that: An outer sieve hole (204) is installed at the upper end of the partition assembly (2).

4. The cement mill inner cavity partition structure according to claim 1, characterized in that: The partition assembly (2) is installed inside the connecting groove (102) in the connecting assembly (1), and the overall size of the partition assembly (2) is smaller than the installation frame (101) in the connecting assembly (1).

5. The cement mill inner cavity partition structure according to claim 2, characterized in that: The installation frame (101) is an annular structure. The installation frame (101) is installed on the upper end of the inner sieve plate (201). The outer sieve plate (203) is installed inside the connecting groove (102).

6. The cement mill inner cavity partition structure according to claim 3, characterized in that: The inner sieve plate (201) and the outer sieve plate (203) form a double-layer sieve hole structure. The sieve holes at the upper ends of the inner sieve plate (201) and the outer sieve plate (203) have different sizes. The inner sieve holes (202) are radially distributed. The inner sieve holes (202) are designed to be trapezoidal, with a small opening at the upper part and a large opening at the lower part.

7. The cement mill inner cavity partition structure according to claim 3, characterized in that: The outer sieve hole (204) is of wave-like design, and the sieve hole curvature is increased while ensuring the sieve area. The inner sieve plate (201) and the outer sieve plate (203) are made of NM400 wear-resistant steel plate material.

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