CN212549814U

CN212549814U - Vertical flour mill

Info

Publication number: CN212549814U
Application number: CN202020919252.5U
Authority: CN
Inventors: 孔金山; 王军辉; 马路; 刘靖; 王喜昌; 张伟伟; 刘守胜
Original assignee: Henan Liming Heavy Industry Technology Co Ltd
Current assignee: Henan Liming Heavy Industry Technology Co Ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-02-19
Anticipated expiration: 2030-05-27

Abstract

The utility model relates to the technical field of flour mills, in particular to a vertical flour mill, which comprises a working cylinder, a frame, a speed reducer, a lower machine body, a transmission arm, a grinding disc, a grinding roller, a middle machine body, a powder concentrator, an accelerating inner cylinder device and a main motor; the inner cylinder device with higher speed sets up in well organism, well organism bottom is provided with the mill, lower organism lower extreme is connected with the speed reducer, and the speed reducer lower extreme is connected with main motor, the mill axis body is connected with the speed reducer back and is connected with main motor again, be provided with drive arm and working cylinder in the frame, drive arm is connected with the grinding roller, and the grinding roller sets up on the mill, well organism outside still is provided with the feed inlet, be provided with the air intake down on the organism, the opening of one side in selection powder machine top is provided with the air outlet. The vertical flour mill has the advantages of improving the flour selecting efficiency, improving the processing precision of powder, improving the productivity, reducing the energy consumption, along with wide processing range and strong applicability.

Description

Vertical flour mill

Technical Field

The utility model relates to a milling machine technical field especially relates to a vertical milling machine.

Background

Nowadays, vertical mill products and technologies are applied to the cement industry, the coal powder preparation industry, the slag micro powder preparation industry and the electric power industry in China, and the production and preparation technology of powder materials is greatly developed. But also can improve the energy consumption, the conveying efficiency, the powder selecting efficiency, the productivity and the processing range. When the traditional vertical mill is used for producing products with fineness requirements of 80-325 meshes, the working efficiency of the mill is good, but when the traditional vertical mill is used for producing coarse powder products with fineness requirements of 5-80 meshes, the working efficiency of the traditional vertical mill is not high, and the fine powder of the products is more. The traditional vertical mill has a relatively complex internal gas flowing environment, and in the process that the air flow carries the ground materials to rise, the air flow can generate certain changes due to the change of the gas flowing space, part of the materials cannot be conveyed to the powder selecting machine for sorting, and fall to the grinding disc for continuous grinding, so that the influence is not obvious when fine powder is produced, but when coarse powder with the fineness requirement of 5-80 meshes is produced, the fall-back materials are increased, and the working efficiency of the vertical mill is reduced.

Disclosure of Invention

The utility model discloses a solve foretell problem, and provide a vertical milling machine who improves milling machine wholeness ability and realize thick powder and fine powder and grind simultaneously.

The utility model adopts the technical proposal that:

a vertical flour mill comprises a working cylinder, a frame, a speed reducer, a lower machine body, a transmission arm, a grinding disc, a grinding roller, a middle machine body, a powder concentrator, an accelerating inner cylinder device and a main motor;

the lower machine body is fixedly connected with the middle machine body, the middle machine body is fixedly connected with the powder selecting machine, the accelerating inner cylinder device is connected with the powder selecting machine and arranged in the middle machine body, a grinding disc is arranged at the bottom of the middle machine body, the lower end of the lower machine body is connected with a speed reducer, the lower end of the speed reducer is connected with a main motor, a grinding disc shaft body is connected with the speed reducer and then connected with the main motor, a transmission arm and a working cylinder are arranged on the frame, the transmission arm is connected with a grinding roller, the grinding roller is arranged on the grinding disc, a feeding hole is further formed in the outer side of the middle machine body, an air inlet is further formed in the lower machine body.

Further, the accelerating inner cylinder device comprises an accelerating ring, a blanking conical cylinder, an accelerating cylinder piece and a blanking straight cylinder, the accelerating ring is fixedly connected with the middle machine body, the upper end of the blanking conical cylinder is fixedly connected with the accelerating ring, the lower end of the blanking conical cylinder is fixedly connected with the blanking straight cylinder, the accelerating cylinder piece is fixedly connected with the accelerating ring and is arranged in the vertical direction, and the lower end of the accelerating cylinder piece is an arc-shaped opening and avoids the grinding roller to run.

Furthermore, the accelerating ring and the blanking cone are evenly divided into four parts, the four parts are respectively connected and combined into a whole through bolts, the accelerating ring is integrally connected with the integral upper end of the blanking cone, and the integral lower end of the blanking cone is connected with the blanking straight cylinder.

Furthermore, the accelerating cylinder sheets are in a group and are uniformly arranged on the accelerating ring to form an annular inner cylinder.

The beneficial effects of the utility model reside in that:

1. the utility model provides a pair of vertical flour mill sets up built-in section of thick bamboo with higher speed to connect with many bolts, conveniently dismantle the maintenance, demolish the back simultaneously and can process the middlings, can process the farine during the installation, the practicality is strong.

2. The inner cylinder is arranged in the middle of the middle machine body in an acceleration mode, and a space gap is formed between the blanking conical cylinder and the acceleration cylinder piece, so that the internal space layout is optimized, the flowing of gas is facilitated, the wind speed is improved, the conveying efficiency is increased, and the energy consumption is reduced.

3. The acceleration built-in cylinder device provides a relatively stable environment for the air flow in the flour mill, so that the air flow is relatively uniform, and the production and preparation of materials with specific fineness requirements are facilitated.

In a word, the utility model provides a pair of vertical milling machine has the machining precision who improves selection powder efficiency, powder, improves the productivity, reduces the advantage that energy consumption and processing range are wide the suitability is strong.

Drawings

Fig. 1 is a schematic structural diagram of a vertical mill provided by the present invention.

In the figure: 1. a working cylinder; 2. a frame; 3. a speed reducer; 4. a lower machine body; 5. a drive arm; 6. a grinding disc; 7. grinding the roller; 8. a middle body; 9. selecting a powder machine; 10. an acceleration inner cylinder device; 11. a main motor; 12. a feed inlet; 13. an air inlet; 10.1, an acceleration ring; 10.2, blanking cone; 10.3, accelerating cylinder pieces; 10.4, a blanking straight cylinder.

Detailed Description

The core of the utility model is to provide a vertical milling machine.

The present invention will be further explained with reference to the accompanying drawings:

when in specific use, as shown in the figure, the vertical flour mill consists of a working cylinder 1, a frame 2, a speed reducer 3, a lower mill body 4, a transmission arm 5, a grinding disc 6, a grinding roller 7, a middle mill body 8, a powder concentrator 9, an accelerating inner cylinder device 10 and a main motor 11; the accelerating inner cylinder device 10 is arranged on a middle machine body 8 and mainly comprises an accelerating ring 10.1, a blanking conical cylinder 10.2, an accelerating cylinder piece 10.3 and a blanking straight cylinder 10.4, the accelerating inner cylinder device 10 is fixed on the middle machine body 8 through the accelerating ring 10.1, the accelerating ring 10.1 and the blanking conical cylinder 10.2 are divided into 4 parts and are connected and combined through bolts; the accelerating ring 10.1 and the accelerating barrel piece 10.3 are connected together through a bolt; the blanking cone barrel 10.2 is placed on a support ring at the lower part of the accelerating ring 10.1, and the blanking straight barrel 10.4 is fixedly connected with the blanking cone barrel 10.2; a plurality of accelerating cylinder pieces 10.3 are arranged to form an annular inner cylinder, and the annular inner cylinder is provided with an arc-shaped opening to avoid a grinding roller; an air outlet is arranged at an opening at one side of the top end of the powder concentrator 9.

When the pulverizer works, the main motor 11 drives the grinding disc 6 to rotate through the speed reducer 3, materials fall into the center of the grinding disc 6 from the feed port 12, the materials uniformly move from the center of the grinding disc 6 to the edge under the action of centrifugal force, and when the materials pass through a grinding roller bed area on the grinding disc 6, the materials are rolled by the grinding roller 7, large materials are directly crushed, and fine materials are extruded to form a material bed for inter-particle crushing. The ground materials continuously move to the edge of the grinding disc 6, and meanwhile, the gas enters the grinding mill from the air inlet 13 along the gap between the inner wall of the lower machine body 4 and the grinding disc 6; the ground materials are taken away by strong airflow at the edge of the grinding disc 6 and continue to flow upwards through an annular air duct S formed between the middle machine body 8 and the accelerating inner cylinder device 10. When the fine powder passes through the powder concentrator 9, the fine powder goes out of the mill along with the gas and is collected by a powder collector outside the device through an air outlet, and larger particles are thrown out by blades of the powder concentrator 9 under the action of centrifugal force, pass through the blanking cone 10.2 and then return to the grinding disc 6 again for grinding;

on the basis of the traditional vertical mill design, the internal structure of the vertical mill is optimized, and the structure of an accelerating inner cylinder device is added in the vertical mill; in the actual processing production, the inner cylinder is accelerated to improve the wind speed, reduce the energy consumption and increase the conveying efficiency, thereby being beneficial to the production and preparation of coarse powder; after the accelerating cylinder piece is removed, the method can be used for producing and preparing fine powder, widens the processing range of the vertical mill from 80 meshes to 325 meshes to 5 meshes to 325 meshes, and realizes the simultaneous grinding of coarse powder and fine powder; therefore, the utility model provides a vertical flour mill, which improves the overall performance of the flour mill and realizes the grinding of coarse powder and fine powder;

the inner cylinder device is accelerated to ensure that the air flow environment inside the vertical mill is relatively stable and the air flow is relatively uniform, thereby being beneficial to the production and preparation of materials with specific fineness requirements, in particular to the production and preparation of coarse powder; the accelerating inner cylinder device is connected by bolts, so that the assembly, disassembly and maintenance are convenient; the internal space layout of the middle machine body is optimized by the acceleration inner cylinder device, so that the air flow is facilitated, the air speed is improved, the conveying efficiency is increased, and the energy consumption is reduced; in the application, an accelerating ring and a blanking cone in an accelerating inner barrel device are divided into four parts and then connected through bolts, and meanwhile, a group of accelerating barrel pieces are arranged to improve and change the air speed in the barrel and increase the air speed; the distribution quantity and size of the acceleration cylinder pieces can be used as variables to influence the wind speed and the airflow, and the acceleration cylinder pieces can be replaced according to actual requirements during production.

According to the above-mentioned embodiment, the utility model provides a pair of vertical milling machine has the machining precision who improves selection powder efficiency, powder, improves the productivity, reduces the advantage that energy consumption and processing range are wide and the suitability is strong.

Claims

1. A vertical milling machine which characterized in that: comprises a working cylinder (1), a frame (2), a speed reducer (3), a lower machine body (4), a transmission arm (5), a grinding disc (6), a grinding roller (7), a middle machine body (8), a powder concentrator (9), an accelerating inner cylinder device (10) and a main motor (11);

the lower machine body (4) is fixedly connected with the middle machine body (8), the middle machine body (8) is fixedly connected with the powder selecting machine (9), the accelerating inner cylinder device (10) is connected with the powder selecting machine (9) and arranged in the middle machine body (8), the grinding disc (6) is arranged at the bottom of the middle machine body (8), the lower end of the lower machine body (4) is connected with the speed reducer (3), the lower end of the speed reducer (3) is connected with the main motor (11), the shaft body of the grinding disc (6) is connected with the main motor (11) after being connected with the speed reducer (3), the transmission arm (5) and the working cylinder (1) are arranged on the frame (2), the transmission arm (5) is connected with the grinding roller (7), the grinding roller (7) is arranged on the grinding disc (6), a feeding hole (12) is further arranged at the outer side of the middle machine body (8), an air inlet (13) is further formed in the lower machine body (4), and an air outlet is formed in an opening in one side of the top end of the powder concentrator (9).

2. A vertical mill according to claim 1, characterized in that: the accelerating inner cylinder device (10) comprises an accelerating ring (10.1), a blanking conical cylinder (10.2), an accelerating cylinder piece (10.3) and a blanking straight cylinder (10.4); the accelerating ring (10.1) is fixedly connected with the middle machine body (8); the upper end of the blanking conical cylinder (10.2) is fixedly connected with the accelerating ring (10.1), and the lower end is fixedly connected with the blanking straight cylinder (10.4); the accelerating cylinder piece (10.3) is fixedly connected with the accelerating ring (10.1) and is arranged in the vertical direction, and the lower end of the accelerating cylinder piece (10.3) is an arc-shaped opening to avoid the grinding roller (7).

3. A vertical mill according to claim 2, characterized in that: the accelerating ring (10.1) and the blanking conical cylinder (10.2) are evenly divided into four parts, the four parts are respectively connected and combined into a whole through bolts, the accelerating ring (10.1) is integrally connected with the integral upper end of the blanking conical cylinder (10.2), and the integral lower end of the blanking conical cylinder (10.2) is connected with the blanking straight cylinder (10.4).

4. A vertical mill according to claim 2, characterized in that: the accelerating cylinder pieces (10.3) are a group and are uniformly arranged on the accelerating ring (10.1) to form an annular inner cylinder.