A mill disc material blocking device applied to a cement vertical mill

Abstract

The application discloses a mill disc material blocking device applied to a cement vertical mill, which comprises a mounting plate connected with the inner wall of the shell of the cement vertical mill, and an arc-shaped baffle is mounted on the mounting plate through a fastening assembly, and the arc-shaped baffle is located at opposite positions of the outer edge side of the mill disc and between two mill rollers. When in use, the material falling on the mill disc can be blocked through the arc-shaped baffle, so that the material not ground by the mill rollers can be effectively prevented from overflowing from the periphery of the mill disc, and thus the grinding effect and efficiency can be improved. After the arc-shaped baffle is installed, the material after being ground can be thrown out from the clearance between the mill rollers and the arc-shaped baffle under the rotating action of the mill disc, so that the material can be discharged.

Description

Technical Field

[0001] This utility model relates to the field of vertical mill application technology, and in particular to a grinding disc baffle device for use in cement vertical mills. Background Technology

[0002] A vertical roller mill is a grinding equipment that integrates fine crushing, drying, grinding, classifying, and conveying. A cement vertical roller mill consists of a high-efficiency classifier, grinding roller assembly, grinding disc assembly, hydraulic loading device for the grinding rollers, hydraulic lubrication system, reducer, motor, and electrical components. In the cement production process, the vertical roller mill is an indispensable piece of equipment, mainly used for grinding cement clinker. The working principle of a cement vertical roller mill is as follows: the motor drives the grinding disc to rotate through the reducer. Material falls from the feed inlet to the center of the grinding disc and moves towards the edge of the disc under centrifugal force, where it is crushed by the grinding rollers. The crushed material overflows from the edge of the grinding disc and is simultaneously carried by a high-speed upward hot airflow from the nozzle ring (air ring) to the high-efficiency classifier integrated with the vertical roller mill. Coarse powder is separated by the separator and returned to the grinding disc for re-grinding; fine powder exits the mill with the airflow and is collected in the system's dust collection device, which is the final product.

[0003] However, during the use of a vertical cement mill, the material falling onto the grinding disc will overflow directly from the sides of the disc. In other words, the unground material will detach from the grinding disc prematurely, thus affecting the grinding effect and reducing grinding efficiency. Utility Model Content

[0004] The purpose of this application is to provide a grinding disc retaining device for cement vertical mills to solve the problem that unground material falling onto the cement grinding disc will detach from the grinding disc in advance, thereby affecting the grinding effect and reducing grinding efficiency.

[0005] To solve the above-mentioned technical problems, this application provides a grinding disc baffle device for use in a cement vertical mill, comprising: An installation plate is connected to the inner wall of the cement vertical mill shell. An arc-shaped baffle is installed on the installation plate by a fastening assembly. The arc-shaped baffle is located at a position opposite to the outer side of the grinding disc and between the two grinding rollers.

[0006] In a preferred embodiment, a grinding disc baffle device for a cement vertical mill includes a fastening assembly comprising a bolt mounted on the arc-shaped baffle, wherein a fastening nut located on one side of the mounting plate is screwed onto the bolt's thread.

[0007] It should be noted in the solution that a grinding disc baffle device applied to a cement vertical mill has a U-shaped mounting plate, and one side of the U-shaped mounting plate is connected to the inner wall of the outer shell by screws.

[0008] In a preferred embodiment, a grinding disc baffle device for a cement vertical mill is provided, wherein a vertical adjustment through hole is provided on the side plate of the U-shaped mounting plate away from the inner wall of the outer shell, and the screw extends into the U-shaped mounting plate through the adjustment through hole.

[0009] The solution requires detailed explanation of a grinding disc baffle device applied to a cement vertical mill, wherein one of the arc-shaped baffles corresponds to three fastening components.

[0010] Compared with the prior art, the present invention provides a grinding disc baffle device for a cement vertical mill, comprising a mounting plate connected to the inner wall of the cement vertical mill shell, and an arc-shaped baffle mounted on the mounting plate by fastening components. The arc-shaped baffle is located at a relative position on the outer side of the grinding disc and between two grinding rollers. In use, the material falling onto the grinding disc can be blocked by the arc-shaped baffle, effectively preventing unground material from overflowing directly from around the grinding disc, thereby improving the grinding effect and efficiency. After the arc-shaped baffle is installed, the ground material can be thrown out from the gap around the grinding rollers and the arc-shaped baffle under the rotation of the grinding disc, realizing material discharge. Attached Figure Description

[0011] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0012] Figure 1 This is a schematic diagram of a grinding disc baffle device for use in a cement vertical mill, provided in an embodiment of this application. Figure 2 This is a schematic diagram of a U-shaped mounting plate structure provided in an embodiment of this application; In the diagram: 1. Mounting plate; 2. Arc-shaped baffle; 3. Grinding disc; 4. Grinding roller; 5. Bolt; 6. Fastening nut; 7. Screw; 8. Adjustment through hole. Detailed Implementation

[0013] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0014] The core of this application is to provide a grinding disc retaining device for cement vertical mills, which solves the problem that unground material falling onto the cement grinding disc will detach from the grinding disc in advance, thereby affecting the grinding effect and reducing grinding efficiency.

[0015] Figure 1 This is a schematic diagram of a grinding disc baffle device for a cement vertical mill, provided in an embodiment of this application. Figure 2This is a schematic diagram of a U-shaped mounting plate structure provided in an embodiment of this application. See also... Figures 1 to 2 As shown.

[0016] Example 1 A grinding disc baffle device for a cement vertical mill includes a mounting plate 1 connected to the inner wall of the mill's outer shell. An arc-shaped baffle 2 is mounted on the mounting plate 1 via fastening components. After installation, the arc-shaped baffle 2 is located at a position opposite to the outer side of the grinding disc 3. That is, there is no direct connection between the arc-shaped baffle 2 and the grinding disc 3, and the placement of the arc-shaped baffle 2 will not affect the normal operation of the grinding disc 3. Furthermore, the arc-shaped baffle 2 is positioned between the two grinding rollers 4; that is, there is no arc-shaped baffle 2 on the outer side directly opposite the grinding disc 3 and the grinding rollers 4. Similarly, the placement of the arc-shaped baffle 2 will not affect the normal operation of the grinding rollers 4. Both the grinding disc 3 and the grinding rollers 4 are existing components in the cement vertical mill, and their structure and working principle can be found in existing technologies.

[0017] Example 2 Based on Embodiment 1, a grinding disc baffle device for a cement vertical mill, preferably includes a bolt 5 mounted on the arc-shaped baffle 2 for easy installation and fixing. A fastening assembly is screwed onto the bolt 5 with a fastening nut 6 located on one side of the mounting plate 1. In use, the bolt 5 can be clamped from the nut using a tool, and then the arc-shaped baffle 2 and the mounting plate 1 can be fixedly connected by tightening the fastening nut 6, so that the arc-shaped baffle 2 is located on the outer side of the grinding disc 3. After installation, the arc-shaped baffle 2 must be tightly against the outer side of the grinding disc 3, but it is necessary to ensure that the grinding disc 3 can rotate normally.

[0018] Based on Embodiment 2, a grinding disc baffle device for a cement vertical mill is provided. In order to facilitate the installation of the mounting plate 1 and the outer shell, the mounting plate 1 can preferably be a U-shaped mounting plate, and one side of the U-shaped mounting plate is connected to the inner wall of the outer shell by screws 7.

[0019] In this embodiment, a grinding disc baffle device applied to a cement vertical mill, in order to achieve height adjustment of the arc-shaped baffle 2 to meet different height requirements, preferably, a vertical adjustment through hole 8 is provided on the side plate of the U-shaped mounting plate away from the inner wall of the outer shell, and a screw extends into the U-shaped mounting plate through the adjustment through hole 8. In use, the fastening nut 6 can be loosened to adjust the height of the screw in the adjustment through hole 8, thereby adjusting the height of the arc-shaped baffle 2. After the height is adjusted to the correct position, the fastening nut 6 is tightened to fix the arc-shaped baffle 2 at the current height position.

[0020] Based on Example 1, a grinding disc baffle device applied to a cement vertical mill is provided. In order to improve the fixing stability of the arc-shaped baffle 2, preferably, one arc-shaped baffle 2 corresponds to three fastening components.

[0021] This utility model provides a grinding disc baffle device for a cement vertical mill, comprising a mounting plate 1 connected to the inner wall of the cement vertical mill shell, and an arc-shaped baffle 2 mounted on the mounting plate 1 by fastening components. The arc-shaped baffle 2 is located at a relative position on the outer side of the grinding disc 3 and between two grinding rollers 4. In use, the material falling onto the grinding disc 3 can be blocked by the arc-shaped baffle 2, effectively preventing unground material from overflowing directly from around the grinding disc 3, thereby improving the grinding effect and efficiency. After the arc-shaped baffle 2 is installed, the ground material can be thrown out from the gap between the grinding rollers 4 and the arc-shaped baffle 2 under the rotation of the grinding disc 3, realizing material discharge.

[0022] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and incorporate common knowledge or customary techniques in the art disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.

[0023] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.

Claims

1. A grinding disc baffle device for use in a cement vertical mill, characterized in that, include: An installation plate (1) is connected to the inner wall of the cement vertical mill shell. An arc-shaped baffle (2) is installed on the installation plate (1) by a fastening assembly. The arc-shaped baffle (2) is located at a relative position on the outer side of the grinding disc (3) and between the two grinding rollers (4). The fastening assembly includes a bolt (5) mounted on the arc-shaped baffle (2), and a fastening nut (6) located on one side of the mounting plate (1) is screwed onto the thread of the bolt (5). The mounting plate (1) is a U-shaped mounting plate, and one side of the U-shaped mounting plate is connected to the inner wall of the outer shell by screws (7); The U-shaped mounting plate is provided with a vertical adjustment through hole (8) on the side away from the inner wall of the outer shell, and the screw extends into the U-shaped mounting plate through the adjustment through hole (8).

2. The grinding disc baffle device for a cement vertical mill according to claim 1, characterized in that, One of the arc-shaped baffles (2) corresponds to three fastening components.

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