Material distribution scraper of grinding disc

Abstract

The utility model relates to the technical field of vertical mills, and discloses a millstone material distribution scraper which comprises a scraper body arranged on a central blanking pipe, the scraper body comprises a main body part and auxiliary body parts symmetrically arranged on the main body part, the main body part and the auxiliary body parts form a triangular fork shape, and the outer side of the main body part and the outer sides of the auxiliary body parts are located outside the central blanking pipe. The joint of the main body part and the auxiliary body part is located in the center discharging pipe. According to the scheme, materials fall into the center of the millstone from the gap between the center discharging pipe and the scraper, the materials can be gradually accumulated in the center of the millstone and make contact with the scraper, the materials on the millstone and the scraper move relatively, and due to the fact that the scraper is in a triangular fork shape, grinding roller materials at the corresponding corners can be scraped to the position in front of the corresponding grinding roller in time; and meanwhile, the materials can flow in a larger area, so that the materials on the millstone are uniformly distributed.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical grinding mills, in particular to a grinding disc material scraper. Background Art

[0002] The grinding process of the vertical mill is to transport the material to the top of the vertical mill, and then the material enters the center of the upper surface of the grinding disc through the central discharge pipe. The grinding disc rotates under the action of the motor. Under the centrifugal force of the grinding disc, the material at the center of the grinding disc moves to the edge, and then enters the grinding area formed by the grinding roller and the grinding disc. The ground material continues to move to the edge of the grinding disc until it overflows from the grinding disc for subsequent sorting. Among them, after the material falls from the central discharge pipe onto the grinding disc, it will accumulate at the center of the grinding disc. The centrifugal force of the grinding disc alone cannot make the material evenly distributed on the grinding disc, which affects the operation of the grinding roller. At present, it is mainly through fixing a square scraper at the bottom of the central discharge pipe, and the length of the square scraper is the same as the diameter of the central discharge pipe. The relative movement of the square scraper and the grinding disc makes the material diffuse to the edge of the grinding disc, and then makes the material evenly distributed on the grinding disc. However, since the square scraper and the central discharge pipe have the same diameter, the square scraper can scrape the material on the grinding disc flat, but cannot make the material evenly distributed on the grinding disc. Utility Model Content

[0003] The utility model aims to provide a grinding disc material distribution scraper to solve the current problem of uneven distribution of materials on the grinding disc.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a grinding disc material scraper, including a scraper, which is arranged on a central feeding pipe, and the scraper includes a main body and a sub-body symmetrically arranged on the main body, and the main body and the sub-body form a triangular fork shape, and the outer side of the main body and the outer side of the sub-body are both located outside the central feeding pipe, and the connection between the main body and the sub-body is located inside the tube wall at the lower end of the central feeding pipe.

[0005] The principle and advantages of this solution are as follows: the material falls from the gap between the central feed pipe and the scraper into the center of the grinding disc, and the material will gradually accumulate in the center of the grinding disc and contact with the scraper. The material on the grinding disc moves relative to the scraper. Since the scraper is designed in the shape of a triangular fork, the three corners of the triangular fork correspond to the front ends of the three grinding rollers. After the material enters the mill, it will be immediately scraped by the scraper to the front ends of the corresponding grinding rollers for grinding. The time that the material stays in the center of the grinding disc is reduced, and it can be distributed in the grinding area of ​​the grinding disc faster and more evenly. At the same time, the material can flow in a larger area, so that the material is evenly distributed on the grinding disc.

[0006] Preferably, the main body and the auxiliary body are integrally formed. This integrally formed arrangement makes the scraper stronger and has a longer service life.

[0007] Preferably, the scraper is detachably connected to the central feed pipe, so that the scraper can be easily removed for maintenance.

[0008] Preferably, the scraper is connected to the central discharge pipe through a connecting seat, the connecting seat includes a connecting ring and a connecting rod, one end of the connecting rod is fixedly connected to the main body or the auxiliary body, and the other end of the connecting rod is fixedly connected to the connecting ring, and the connecting ring is fixed on the outside of the central discharge pipe.

[0009] Preferably, an annular groove for installing a connecting ring is provided on the outer side of the central feeding tube, and the connecting ring is made of elastic material. The annular groove is provided to enhance the connection stability between the connecting ring and the central feeding tube, and the elastic connecting ring is more convenient to install.

[0010] Preferably, the top surface of the main body portion and the top surface of the auxiliary body portion are both in contact with the bottom surface of the central feeding pipe.

[0011] Preferably, the main body and the auxiliary body are connected in a smooth transition, and the auxiliary body and the auxiliary body are connected in a smooth transition, so as to increase the connection area and improve the overall strength of the scraper.

[0012] Preferably, the connection between the main body and the auxiliary body does not coincide with the center point of the central feeding pipe.

[0013] Preferably, the bottom of the main body and the bottom of the auxiliary body are both provided with through grooves, and the minimum distance between the through groove of the main body and the central feeding pipe is greater than the minimum distance between the through groove of the auxiliary body and the central feeding pipe. This allows the materials between the main body and the auxiliary body of the scraper to flow mutually, avoiding uneven distribution of materials concentrated in a single area, and at the same time reduces the resistance of the scraper, thereby extending the service life of the scraper.

[0014] Preferably, the edges of the main body and the auxiliary body are both arc-shaped, which is more conducive to the flow of materials to the edge of the grinding disc, so that the material distribution is more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0016] Figure 2 It is a top view schematic diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0017] The following is further described in detail through specific implementation methods:

[0018] The reference numerals in the drawings of the specification include: a scraper 1 , a main body 11 , a secondary body 12 , a central feed pipe 3 , a grinding disc 4 , a connecting ring 5 , and a connecting rod 6 .

[0019] Example:

[0020] A grinding disc cloth scraper, as attached Figure 1 and attached Figure 2 As shown, it includes a scraper, and the scraper 1 is arranged on the central feeding pipe 3. The scraper 1 includes a main body 11 and a sub-body 12 symmetrically arranged on the main body 11, and the main body 11 and the sub-body 12 form a triangular fork shape. When the grinding disc 4 rotates under the action of the motor, the material on the grinding disc 4 moves relative to the scraper 1. The scraper 1 is designed in a triangular fork shape, and the three corners of the triangular fork correspond to the front ends of the three grinding rollers. After the material enters the mill, it will be immediately scraped by the scraper 1 to the front ends of the corresponding grinding rollers for grinding. The time that the material exists in the center of the grinding disc is reduced, and it can be distributed faster and more evenly in the grinding area of ​​the grinding disc. At the same time, it can make the material flow in a larger area, so that the material on the grinding disc 4 is evenly distributed.

[0021] The main body 11 and the auxiliary body 12 are integrally formed. This integrally formed arrangement makes the scraper 1 stronger and has a longer service life.

[0022] The edges of the main body 11 and the auxiliary body 12 are both arc-shaped. Arranging them into an arc shape is more conducive to the flow of materials to the edge of the grinding disc 4, so that the material distribution is more uniform.

[0023] The main body 11 and the auxiliary body 12 are connected in a smooth transition, and the auxiliary body 12 and the auxiliary body 12 are connected in a smooth transition. The connection area is increased, and the overall strength of the scraper 1 is improved. The connection between the main body 11 and the auxiliary body 12 does not coincide with the center point of the central feeding pipe 3.

[0024] Through grooves are provided at the bottom of the main body 11 and the bottom of the auxiliary body 12, and the minimum distance between the through groove of the main body 11 and the central feeding pipe 3 is greater than the minimum distance between the through groove of the auxiliary body 12 and the central feeding pipe 3. This allows the materials between the main body 11 and the auxiliary body 12 of the scraper 1 to flow mutually, avoiding the materials from being concentrated in a single area and unevenly distributed, and at the same time can reduce the resistance of the scraper 1 and extend the service life of the scraper 1.

[0025] The main body 11 and the auxiliary body 12 have smooth surfaces, which can reduce friction resistance and improve the movement efficiency of the material scraper 1. At the same time, they are easy to clean, and materials are not easy to adhere to them, which is conducive to keeping the scraper 1 clean.

[0026] The outer sides of the main body 11 and the auxiliary body 12 are both located outside the central feeding pipe 3 , and the connection between the main body 11 and the auxiliary body 12 is located inside the central feeding pipe 3 .

[0027] The top surface of the main body 11 and the top surface of the auxiliary body 12 are both in contact with the bottom surface of the central feeding pipe 3 .

[0028] The scraper 1 is detachably connected to the central feed pipe 3, so that the scraper 1 can be easily disassembled for maintenance.

[0029] The scraper 1 is connected to the central feeding pipe 3 through a connecting seat, and the connecting seat includes a connecting ring 5 and a connecting rod 6. One end of the connecting rod 6 is fixedly connected to the main body 11 or the auxiliary body 12, and the other end of the connecting rod 6 is fixedly connected to the connecting ring 5. The connecting ring 5 is fixed to the outside of the central feeding pipe 3. An annular groove for installing the connecting ring 5 is provided on the outside of the central feeding pipe 3, and the connecting ring 5 is made of elastic material. The annular groove is provided to enhance the connection stability between the connecting ring 5 and the central feeding pipe 3, and the elastic connecting ring 5 is more convenient to install.

[0030] The height of the connecting rod 6 is adjustable, so that the height of the scraper 1 can be adjusted, and the thickness of the material on the grinding disc 4 can be adjusted. The connecting rod 6 specifically includes an inner rod and an outer rod, the inner rod is slidably arranged in the outer rod, the inner rod is connected to the scraper 1, and a plurality of screw holes are provided on the outer rod. The inner rod is limited by installing bolts at different threaded holes to adjust the position of the inner rod. In addition, the height of the connecting rod 6 (i.e., changing the length) can also be adjusted by using existing height adjustment methods such as hydraulic pressure and pneumatic pressure.

[0031] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical schemes and / or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several variations and improvements can be made without departing from the technical scheme of the utility model. In the utility model, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances. The scope of protection claimed in this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A grinding disc material scraper, comprising a scraper, the scraper being arranged on a central feeding pipe, characterized in that: The scraper includes a main body and a sub-body symmetrically arranged on the main body, the main body and the sub-body form a triangular fork shape, the outer sides of the main body and the sub-body are both located at the lower end of the central feed pipe, and the connection between the main body and the sub-body is located inside the tube wall at the lower end of the central feed pipe.

2. The grinding disc material scraper according to claim 1, characterized in that: The main body and the auxiliary body are integrally formed.

3. The grinding disc material scraper according to claim 1, characterized in that: The scraper is detachably connected to the central feeding pipe.

4. The grinding disc material scraper according to claim 3, characterized in that: The scraper is connected to the central discharge pipe through a connecting seat, and the connecting seat includes a connecting ring and a connecting rod. One end of the connecting rod is fixedly connected to the main body or the auxiliary body, and the other end of the connecting rod is fixedly connected to the connecting ring. The connecting ring is fixed on the outside of the central discharge pipe.

5. The grinding disc material scraper according to claim 4, characterized in that: An annular groove for installing a connecting ring is arranged on the outer side of the central feeding pipe, and the connecting ring is made of elastic material.

6. The grinding disc material scraper according to claim 3, characterized in that: The top surface of the main body part and the top surface of the auxiliary body part are both in contact with the bottom surface of the central feeding pipe.

7. The grinding disc material scraper according to claim 1, characterized in that: The main body portion and the auxiliary body portion are connected in a smooth transition, and the auxiliary body portion and the auxiliary body portion are connected in a smooth transition.

8. The grinding disc material scraper according to claim 1, characterized in that: The connection point between the main body and the auxiliary body does not coincide with the center point of the central feeding pipe.

9. The grinding disc material scraper according to claim 1, characterized in that: The bottom of the main body and the bottom of the auxiliary body are both provided with through grooves, and the minimum distance between the through groove of the main body and the central feeding pipe is greater than the minimum distance between the through groove of the auxiliary body and the central feeding pipe.

10. The grinding disc material scraper according to claim 1, characterized in that: The edges of the main body portion and the auxiliary body portion are both arc-shaped.

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