Bulk material device of vertical roller mill

Abstract

The utility model discloses a vertical roller mill material dispersing device which comprises a mounting seat, a material sweeping motor arranged in the mounting seat, a rotating seat arranged on the mounting seat and connected with the output end of the material sweeping motor, the top of the rotating seat is designed to be of a conical structure, and a plurality of material sweeping plates are evenly arranged on the side face of the rotating seat at intervals in a surrounding mode. The material sweeping plate is designed to be of an arc-shaped structure. The mounting seat is matched with the rotating seat, falling materials are crushed and scattered between the sweeping plates through the top of the rotating seat, the rotating seat is driven by the sweeping motor to rotate in the direction opposite to that of the grinding disc, and then the rotating seat is matched with the sweeping plates, so that the grinding disc is driven to rotate in the direction opposite to that of the grinding disc. Materials scattered between the sweeping plates are diffused towards the edge of the millstone along the arc direction of the sweeping plates, accumulation of the materials due to slow diffusion can be prevented, the problem that a feeding port is blocked due to accumulation of the materials is solved, production efficiency is effectively improved, the workload of workers is reduced, and the material sweeping and diffusing device has the advantages of being simple in structure, good in sweeping and diffusing effect and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of vertical mills, and particularly relates to a material sweeping device for a vertical mill. Background Art

[0002] The vertical roller mill, abbreviated as vertical mill, is a kind of equipment for grinding cement raw meal, cement clinker, slag and coal slag. With the continuous improvement of cement production technology, the cement industry is gradually developing towards large-scale. The vertical mill has unique advantages in working principle, grinding mechanism, equipment structure, system processability, etc., making it a trend to be widely used in the cement industry. In recent years, many domestic manufacturers have adopted vertical mills to grind materials such as cement raw meal, raw coal, cement clinker and slag, and have been fully affirmed.

[0003] At present, most of the feeding ports of conventional vertical mills are located above the center of the grinding table in the vertical mill. The feeder transports materials through the feeding port to the grinding table. When the grinding table rotates, materials such as cement and slag diffuse towards the edge of the grinding table under the action of centrifugal force. Since the centrifugal force is smaller closer to the center point, the diffusion speed of the materials at the center of the grinding table towards the edge of the grinding table is relatively slow, resulting in the accumulation of materials at the center of the grinding table. When the materials accumulate to a certain height, it will cause the feeding port to be blocked, resulting in material blockage. In severe cases, it will even cause the machine to trip and stop working normally. It is necessary to stop the vertical mill and clean it by workers, which greatly reduces the grinding efficiency of the materials, resulting in low production efficiency and increasing the workload of workers. Content of the Utility Model

[0004] The utility model provides a material sweeping device for a vertical mill aiming at the deficiencies of the prior art. Through the cooperation of the mounting seat and the rotating seat, the dropped materials are broken and scattered between the sweeping plates at the top of the rotating seat. Driven by the sweeping motor, the rotating seat rotates in the opposite direction to the grinding table. Then, through the cooperation of the rotating seat and the sweeping plates, the materials scattered between the sweeping plates are diffused along the arc of the sweeping plates towards the edge of the grinding table, which can prevent the materials from accumulating due to slow diffusion, thus avoiding the problem of feeding port blockage caused by material accumulation, effectively improving the production efficiency, reducing the workload of workers, and having the characteristics of simple structure and good material sweeping and diffusion effect.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A vertical mill sweeping device comprises a mounting seat, which is detachably mounted at the center of the grinding disc of the vertical mill and is located below the feeding port. A sweeping motor is arranged in the mounting seat, and the rotation direction of the sweeping motor is opposite to the rotation direction of the grinding disc. A rotating seat is arranged on the mounting seat, and the rotating seat is connected to the output end of the sweeping motor. When the sweeping motor is in operation, the rotating seat can be driven to rotate. The top of the rotating seat is designed as a conical structure, and a plurality of sweeping plates are evenly spaced and arranged around the side of the rotating seat. The sweeping plates are designed as arc structures, and the direction of the arc surface of the sweeping plates is consistent with the rotation direction of the rotating motor. When the grinding disc rotates, the sweeping motor operates at the same time, thereby driving the rotating seat and the grinding disc to rotate in opposite directions, and the fallen materials are scattered around through the top of the rotating seat and fall between the sweeping plates. The sweeping plates sweep the materials driven by the rotating seat, so that the materials are diffused outward along the arc surface of the sweeping plates to the edge of the grinding disc, and are crushed and ground by grinding rollers, so as to achieve the purpose of preventing the accumulation caused by slow diffusion of materials.

[0007] Furthermore, the detachable installation of the mounting seat and the grinding disc is a concave-convex plug-in connection structure connected by a connecting socket and a plug-in column. The connecting socket is arranged at the bottom of the mounting seat, and the plug-in column is arranged at the center of the grinding disc and the distribution position corresponds to the position of the connecting socket. The mounting seat is inserted into the plug-in column via the connecting socket, so that the mounting seat can be connected to the grinding disc.

[0008] Furthermore, the radius of the mounting seat is smaller than that of the rotating seat, so as to prevent the sweeping plate from being scratched when sweeping materials, thereby improving the stability of the sweeping plate driven by the rotating seat to rotate.

[0009] Furthermore, a plurality of guide grooves are arranged around the top of the mounting seat, the number of the guide grooves is consistent with the number of the sweeping plates, and the guide grooves are located between the two sweeping plates, which is beneficial for guiding the materials to be scattered between the sweeping plates.

[0010] Furthermore, the lower edge of the arcuate surface of the sweeping plate is designed as an arc-shaped shovel-like structure, which facilitates the sweeping plate to sweep the material.

[0011] The utility model of the sweeping device for the mill has the following beneficial effects:

[0012] 1. The utility model crushes the material falling from the feeding port and scatters it between the sweeping plates through the conical top of the rotating seat, and then drives the rotating seat and the grinding disc to rotate in the opposite direction through the sweeping motor. The material between the sweeping plates will diffuse toward the edge of the grinding disc along the arc surface of the sweeping plates under the action of centrifugal force, thereby accelerating the diffusion speed of the material at the center of the grinding disc and preventing the material from piling up due to slow diffusion, thereby avoiding the problem of clogging of the feeding port, effectively improving the material grinding efficiency and reducing the workload of workers.

[0013] 2. The plug interface on the mounting socket of the present utility model and the plug post on the grinding disc are detachably connected, which facilitates the disassembly of the material sweeping device of the vertical mill for replacement, maintenance, cleaning and other operations.

[0014] 3. Through the guiding grooves corresponding to the number of material sweeping plates of the present utility model, it is convenient to guide the materials to fall between the material sweeping plates, and then drive the material sweeping plates to rotate in the opposite direction of the grinding disc through the rotating seat. The materials are swept by the lower part of the arc-shaped surface of the shovel-shaped structure, so that the materials diffuse along the arc-shaped surface of the material sweeping plate towards the edge of the grinding disc under the action of centrifugal force, which is convenient for the grinding rolls to roll and grind. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural view of the present utility model.

[0016] Figure 2 It is a top view of the present utility model.

[0017] Figure 3 It is a side view of the present utility model.

[0018] Figure 4 It is a schematic connection view of the plug post and the grinding disc of the present utility model.

[0019] Figure 5 It is a bottom view of the mounting seat of the present utility model.

[0020] Figure 6 It is a longitudinal sectional view of the present utility model with the material sweeping plate removed.

[0021] In the figure: 1. Mounting seat; 2. Rotating seat; 3. Material sweeping plate; 4. Guiding groove; 5. Grinding disc; 6. Rotating motor; 7. Plug post; 8. Connection socket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0023] The material sweeping device of the vertical mill provided by the utility model includes a mounting base. An insertion port is provided at the bottom of the mounting base. At the center of the grinding table below the feeding port of the vertical mill, there is an insertion column. The distribution position of the insertion column corresponds to the position of the insertion port. The mounting base is installed at the center of the grinding table below the feeding port through the concave-convex plug-in connection structure where the insertion port is plugged with the insertion column. A sweeping motor is arranged inside the mounting base. The rotation direction of the sweeping motor is opposite to the rotation direction of the grinding table. A rotating seat is arranged on the mounting base. The rotating seat is connected to the output end of the sweeping motor. The radius of the mounting base is smaller than the radius of the rotating seat. When the sweeping motor operates, it can drive the rotating seat to rotate. The top of the rotating seat is designed as a conical structure. The inclined surface of the cone can facilitate the scattering of materials, and the tip of the cone can break the bulk materials with low hardness. Six sweeping plates with arc-shaped structures are evenly spaced and arranged around the side of the rotating seat. The arc-facing surface of the sweeping plate faces the same direction as the rotation direction of the rotating motor. The lower edge of the arc-facing surface of the sweeping plate is designed as an arc-shaped shoveling structure to facilitate sweeping the materials. Six guiding grooves are arranged around the top of the mounting base, and the guiding grooves are located between two sweeping plates to facilitate guiding the materials to fall between the sweeping plates through the guiding grooves.

[0024] During installation, the material sweeping device can be installed by aligning the connection socket on the mounting base with the insertion column arranged on the grinding table and then inserting them.

[0025] The working principle of the utility model: When working, the rotating motor drives the rotating seat and the grinding table to rotate in opposite directions. At this time, when the cement materials falling from the feeding port land on the top of the rotating seat, they are scattered between the sweeping plates under the guidance of the guiding grooves. The sweeping plates rotate driven by the rotating seat, and continuously sweep the scattered cement materials through the arc-shaped shoveling edges. When the cement materials are swept, they will continuously spread along the arc-facing surface of the sweeping plates towards the edge of the grinding table, and then be rolled and ground by the grinding rollers, thus solving the problem of slow material diffusion and accumulation, accelerating the speed of material grinding, and effectively improving production efficiency.

[0026] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, several improvements and retouches can be made. These improvements and retouches should also be regarded as the protection scope of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A vertical roller mill bulking device, characterized in that: The utility model comprises a mounting seat, which is detachably mounted at the center of the grinding disc of the vertical mill and is located below the feeding port. A sweeping motor is arranged in the mounting seat, and the rotation direction of the sweeping motor is opposite to the rotation direction of the grinding disc. A rotating seat is arranged on the mounting seat, and the rotating seat is connected to the output end of the sweeping motor. The top of the rotating seat is designed as a conical structure, and a plurality of sweeping plates are evenly spaced around the side of the rotating seat. The sweeping plates are designed as an arc structure, and the direction of the arc surface of the sweeping plate is consistent with the rotation direction of the rotating motor.

2. The vertical roller mill bulking device according to claim 1, characterized in that: The detachable installation of the mounting seat and the grinding disc is a concave-convex plug-in connection structure connected by a connecting socket and a plug-in column. The connecting socket is arranged at the bottom of the mounting seat, and the plug-in column is arranged at the center of the grinding disc and its distribution position corresponds to the position of the connecting socket.

3. The vertical roller mill bulking device according to claim 1, characterized in that: The radius of the mounting seat is smaller than the radius of the rotating seat.

4. The vertical roller mill bulking device according to claim 1, characterized in that: A plurality of guide grooves are arranged around the top of the mounting seat, the number of the guide grooves is consistent with the number of the sweeping plates, and the guide grooves are located between the two sweeping plates.

5. The vertical roller mill bulking device according to claim 1, characterized in that: The lower edge of the arcuate surface of the sweeping plate is designed as an arc-shaped shovel-shaped structure.

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