Cement grinding mill compartment device

Abstract

The utility model relates to the technical field of cement grinding mills, and provides a cement grinding mill bin separating device which comprises a first grate plate, a sieve plate, a second grate plate and a cleaning mechanism, the first grate plate is provided with first grate holes, the sieve plate is provided with sieve holes, the second grate plate is provided with second grate holes, and the hole diameters of the first grate holes, the sieve holes and the second grate holes are sequentially reduced. The cleaning mechanism comprises a mounting frame, a driving assembly and three cleaning assemblies corresponding to the first grid plate, the sieve plate and the second grid plate respectively, the mounting frame is arranged on the ball mill barrel, the driving assembly is arranged on the mounting frame, each cleaning assembly comprises a connecting rod and a brush head, and the brush heads are mounted on the connecting rods; the end, away from the brush head, of the connecting rod penetrates through the ball mill barrel and extends out of the ball mill barrel, and the driving assembly is used for driving the connecting rod to reciprocate and cleaning the first grid plate, the sieve plate and the second grid plate. By arranging the cleaning mechanism, the first grate plate, the sieve plate and the second grate plate can be cleaned, materials are prevented from being clamped in the grate holes and the sieve holes, and the machine-hour yield is increased.

Description

Technical Field

[0001] The present application relates to the technical field of cement mills, and in particular to a cement mill partition device. Background Art

[0002] In recent years, cement combined grinding systems with roller presses have been widely used. The diameter of the particle size of the materials entering the mill after being processed by the roller press and sorted is already below 1mm. Therefore, the full grinding function of the mill has taken a dominant position. Traditional mills are usually multi-bin mills. In multi-bin mills, there are usually bin partition devices between the bins. The bin partition devices are generally composed of a grate plate, a screen plate, and a grate plate structure. However, during the operation of the ball mill, the bin partition device rotates with the mill. Large-particle materials are first pre-separated by a grate plate, so that the large-particle materials remain in the front bin for grinding. Small and medium-sized materials pass through the grate plate and the screen plate through the grate holes of the grate plate. Since the screen plate is a circular flat plate with screen holes on it, the material passes through the screen holes mainly by extrusion and the material level difference before and after the screen plate.

[0003] However, in actual applications, the following situation often occurs: a very small amount of crushed grinding bodies and small cement particles with greater hardness will be stuck in the grate holes and sieve holes, causing poor ventilation in the mill, and the water vapor cannot be carried out by the air flow in time, increasing the blockage of the grate holes, affecting the flow rate of the material, resulting in low output and high energy consumption. Summary of the invention

[0004] The purpose of the embodiment of the present application is to provide a cement mill partition device, which can solve the problem of grate holes and sieve holes causing poor ventilation in the mill, water vapor cannot be carried out by the air flow in time, increase the blockage of the grate holes, affect the flow rate of the material, and lead to low output and high energy consumption.

[0005] The present application provides a cement mill partition device, which adopts the following technical solutions:

[0006] A cement mill partition device comprises a first grate plate, a sieve plate and a second grate plate which are sequentially arranged in a ball mill cylinder, wherein the first grate plate has a first grate hole, the sieve plate has a sieve hole, and the second grate plate has a second grate hole, and the apertures of the first grate hole, the sieve hole and the second grate hole decrease in sequence, and further comprises a cleaning mechanism, wherein the cleaning mechanism comprises a mounting frame, a driving assembly and three cleaning assemblies corresponding to the first grate plate, the sieve plate and the second grate plate respectively, the mounting frame is arranged on the ball mill cylinder, the driving assembly is arranged on the mounting frame, the cleaning assembly comprises a connecting rod and a brush head, the brush head is mounted on the connecting rod, and the end of the connecting rod away from the brush head passes through the ball mill cylinder and extends to the outside of the ball mill cylinder, and the driving assembly is used to drive the connecting rod to reciprocate.

[0007] The above-mentioned cement mill partition device of the present application, the driving assembly includes a driving member, a rotating shaft, a gear and a rack, the driving member is installed on the mounting frame, the rotating shaft is connected to the output end of the driving member, the gear is fixedly sleeved on the rotating shaft, the gear meshes with the rack, and the rack is fixed on the connecting rod.

[0008] In the cement mill partition device of the present application, one end of the rotating shaft away from the driving member is rotatably connected to the inner wall of the mounting frame.

[0009] In the cement mill partition device of the present application, the mounting frame is bolted to the ball mill cylinder.

[0010] In the cement mill partition device of the present application, the driving component is a servo motor.

[0011] Beneficial effects of this application:

[0012] The first grate plate, the sieve plate and the second grate plate rotate synchronously with the ball mill cylinder. The material to be ground in the ball mill cylinder passes through the first grate plate, the sieve plate and the second grate plate by extrusion to achieve graded grinding of the material. The driving assembly drives the connecting rod and the brush head to reciprocate to clean the surfaces of the first grate plate, the sieve plate and the second grate plate to avoid the material clogging the first grate hole, the sieve hole and the second grate hole, maintain ventilation in the mill, and improve the hourly output of the mill. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a structural schematic diagram of a cement mill compartment device of the utility model;

[0015] Figure 2 for Figure 1 A magnified view of the structure at A.

[0016] The reference numerals are:

[0017] 1. Ball mill cylinder; 2. First grate plate; 3. Sieve plate; 4. Second grate plate; 5. First grate hole; 6. Sieve hole; 7. Second grate hole; 8. Cleaning mechanism; 9. Mounting frame; 10. Driving assembly; 11. Cleaning assembly; 12. Connecting rod; 13. Brush head; 14. Driving member; 15. Rotating shaft; 16. Gear; 17. Rack. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0021] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0022] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] like Figure 1 and Figure 2 As shown, a cement mill compartment device of this embodiment comprises a first grate plate 2, a sieve plate 3, a second grate plate 4 and a cleaning mechanism 8 which are sequentially arranged in a ball mill cylinder 1. The first grate plate 2 has a first grate hole 5, the sieve plate 3 has a sieve hole 6, and the second grate plate 4 has a second grate hole 7. The apertures of the first grate hole 5, the sieve hole 6 and the second grate hole 7 are successively reduced. After grinding, the large-size material passes through the first grate hole 5 into between the first grate hole 5 and the sieve hole 6, and after further grinding, passes through the sieve hole 6 into between the sieve hole 6 and the second grate hole 7, and is ground again. After meeting the requirements, it passes through the second grate hole 7 for grinding. After grinding, the large-size material passes through the ball mill cylinder 1. The material is discharged from the discharge port of the mill cylinder. The cleaning mechanism 8 includes a mounting frame 9, a driving assembly 10 and three cleaning assemblies 11 corresponding to the first grate plate 2, the sieve plate 3 and the second grate plate 4 respectively. The mounting frame 9 is arranged on the ball mill cylinder 1, and the driving assembly 10 is arranged on the mounting frame 9. The cleaning assembly 11 includes a connecting rod 12 and a brush head 13. The brush head 13 is installed on the connecting rod 12. One end of the connecting rod 12 away from the brush head 13 passes through the ball mill cylinder 1 and extends to the outside of the ball mill cylinder 1. The driving assembly 10 drives the connecting rod 12 to reciprocate, so as to clean the first grate plate 2, the sieve plate 3 and the second grate plate 4.

[0025] When in use, the first grate plate 2, the sieve plate 3 and the second grate plate 4 rotate synchronously with the ball mill cylinder 1, and the material to be ground in the ball mill cylinder 1 passes through the first grate plate 2, the sieve plate 3 and the second grate plate 4 by extrusion, so as to achieve graded grinding of the material. The driving assembly 10 drives the connecting rod 12 and the brush head 13 to reciprocate to clean the surfaces of the first grate plate 2, the sieve plate 3 and the second grate plate 4, so as to avoid the material from clogging the first grate hole 5, the sieve hole 6 and the second grate hole 7, maintain ventilation in the mill, and improve the hourly output of the mill.

[0026] like Figure 1 and Figure 2 As shown, the driving assembly 10 includes a driving member 14, a rotating shaft 15, a gear 16 and a rack 17. The driving member 14 is mounted on a mounting frame 9, and the mounting frame 9 is bolted to the ball mill cylinder 1, so that the mounting frame 9 can be disassembled to facilitate the inspection and replacement of the cleaning mechanism 8. The rotating shaft 15 is connected to the output end of the driving member 14, and the end of the rotating shaft 15 away from the driving member 14 is rotatably connected to the inner wall of the mounting frame 9. The driving member 14 is a servo motor, and the gear 16 is fixedly sleeved on the rotating shaft 15. The gear 16 engages with the rack 17, and the rack 17 is fixed on the connecting rod 12.

[0027] When in use, the servo motor drives the rotating shaft 15 to rotate forward and reverse, so that under the meshing action of the gear 16 and the rack 17, the connecting rod 12 drives the brush head 13 to move up and down, so as to clean the first grate plate 2, the sieve plate 3 and the second grate plate 4, and prevent the material from clogging the first grate hole 5, the sieve hole 6 and the second grate hole 7.

[0028] The working principle of the utility model:

[0029] The first grate plate 2, the sieve plate 3 and the second grate plate 4 rotate synchronously with the ball mill cylinder 1. The material to be ground in the ball mill cylinder 1 passes through the first grate plate 2, the sieve plate 3 and the second grate plate 4 by extrusion, so as to achieve graded grinding of the material. The rotating shaft 15 is driven forward and reversely by the servo motor, so that under the meshing action of the gear 16 and the rack 17, the connecting rod 12 drives the brush head 13 to move up and down, so as to clean the first grate plate 2, the sieve plate 3 and the second grate plate 4, avoid the material from clogging the first grate hole 5, the sieve hole 6 and the second grate hole 7, maintain ventilation in the mill, and improve the output of the mill per hour.

[0030] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cement mill compartment device, comprising a first grate plate, a sieve plate and a second grate plate sequentially arranged in a ball mill cylinder, wherein the first grate plate has a first grate hole, the sieve plate has a sieve hole, and the second grate plate has a second grate hole, and the apertures of the first grate hole, the sieve hole and the second grate hole decrease in sequence, characterized in that: It also includes a cleaning mechanism, which includes a mounting frame, a driving assembly and three cleaning assemblies corresponding to the first grate plate, the screen plate and the second grate plate respectively, the mounting frame is arranged on the ball mill cylinder, the driving assembly is arranged on the mounting frame, the cleaning assembly includes a connecting rod and a brush head, the brush head is installed on the connecting rod, one end of the connecting rod away from the brush head passes through the ball mill cylinder and extends to the outside of the ball mill cylinder, and the driving assembly is used to drive the connecting rod to reciprocate.

2. A cement mill compartment device according to claim 1, characterized in that: The driving assembly includes a driving member, a rotating shaft, a gear and a rack. The driving member is installed on the mounting frame. The rotating shaft is connected to the output end of the driving member. The gear is fixedly sleeved on the rotating shaft. The gear meshes with the rack. The rack is fixed on the connecting rod.

3. A cement mill compartment device according to claim 2, characterized in that: One end of the rotating shaft away from the driving member is rotatably connected to the inner side wall of the mounting frame.

4. A cement mill compartment device according to claim 1, characterized in that: The mounting frame is bolted to the ball mill cylinder.

5. A cement mill compartment device according to claim 2, characterized in that: The driving component is a servo motor.

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