CN-117696182-B - Bowl-type medium-speed coal mill tire type grinding roller device

CN117696182BCN 117696182 BCN117696182 BCN 117696182BCN-117696182-B

Abstract

The invention belongs to the technical field of coal mills, and discloses a bowl-type medium-speed coal mill tire type roller grinding device, which comprises a coal mill main body, wherein a driving structure is arranged at the bottom end of the coal mill main body, a grinding disc is arranged in the coal mill main body, grinding rollers are arranged above the grinding disc, a plurality of grinding rollers are arranged, cleaning components are arranged at the top end of each grinding roller, each grinding roller is fixedly arranged at the bottom end of a tripod, a lubricating component is arranged in the tripod, the cleaning components are arranged, the grinding rollers can contact with the bottom end of a cleaning head in the rotating process of the grinding rollers, the cleaning head is used for cleaning the surface of a grinding roller tire, the phenomenon that some dirt is accumulated on the surface of the grinding roller tire due to adhesion of pulverized coal or other materials is avoided, the dirt can influence normal work of the grinding rollers, the surface of the grinding roller tire is cleaned, friction resistance during operation of equipment is reduced, and safety of the equipment is improved.

Inventors

LI MING
GAO CHANG
GAN NING
GAO FENG
TANG SHIBAO
XIONG JISHUN
Ou Zizhen

Assignees

国能长源武汉青山热电有限公司

Dates

Publication Date: 20260508
Application Date: 20231128

Claims (5)

1. A bowl-type medium speed coal mill tire type grinding roller device comprises a coal mill main body (1), and is characterized in that a driving structure (2) is arranged at the bottom end of the coal mill main body (1), a grinding disc (3) is arranged in the coal mill main body (1), grinding rollers (4) are arranged above the grinding disc (3), a plurality of grinding rollers (4) are arranged, cleaning components are arranged at the top ends of the grinding rollers (4), the grinding rollers (4) are fixedly arranged at the bottom ends of triangular brackets (5), lubricating components are arranged in the triangular brackets (5), hydraulic pull rods (6) are arranged at the bottom ends of the triangular brackets (5), the cleaning components comprise cleaning heads (32) arranged at the top ends of the grinding rollers (4), the cleaning heads (32) are uniformly arranged, the top ends of the cleaning heads (32) are all slidably arranged on the inner walls of connecting pipes (31), the bottom ends of second connecting plates (30) are fixedly arranged, the second connecting plates (30) are fixedly arranged at the bottom ends of the second connecting plates (30), the second connecting plates (27) are fixedly arranged at one sides of the connecting plates (27) through the inner wall (29), one end of the connecting rope (26) far away from the protruding block (27) is arranged on the outer wall of the second connecting shaft (24), a second gear (23) is fixedly arranged on the outer wall of the second connecting shaft (24), one side of the second gear (23) is connected with a first gear (22) in a meshed mode, the inner wall of the first gear (22) is fixedly connected with a first connecting shaft (21), one end of the first connecting shaft (21) is fixedly connected with a second motor (20), the second motor (20) is arranged in a motor box (19), the motor box (19) is fixedly arranged on the side wall of the tripod (5), a second spring (33) is connected between the cleaning head (32) and the connecting pipe (31), the first gear (22) is arranged as a sector gear, the second connecting shaft (24) is rotatably arranged on the inner wall of the tripod (5), a first spring (25) is arranged between the second connecting shaft (24) and the tripod (5), one side of the fixed block (29) is fixedly connected with a second motor (20), a third connecting rod (34) is fixedly connected with one side of the fixed block (29), a third connecting rod (34) is arranged on the outer wall of the tripod (5), the third connecting rod is matched with the third connecting rod (34), the lubrication fluid is conducted by the cleaning head when the lubrication fluid is added to the grinding roll tire.
2. A bowl-type medium speed pulverizer bowl-type grinding roller device as set forth in claim 1, wherein the bottom end of the cleaning head (32) is disposed obliquely.
3. The bowl-type medium speed coal mill tire type grinding roller device according to claim 1, wherein the lubrication assembly comprises a first liquid outlet hole (7) formed in a tripod (5), a baffle plate (8) is slidably mounted in the first liquid outlet hole (7), a first connecting rod (9) is fixedly mounted at the top end of the baffle plate (8), a second connecting rod (10) is fixedly connected to the top end of the first connecting rod (9), a first connecting plate (11) is fixedly mounted at the top end of the second connecting rod (10), a threaded rod (12) is embedded into the inner wall of the first connecting plate (11), a first motor (13) is fixedly mounted at the top end of the threaded rod (12), the first motor (13) is fixedly mounted on one side of a fixed plate (14), and the fixed plate (14) is fixedly mounted at the top end of the tripod (5).
4. The bowl-type medium speed coal mill tire type grinding roller device according to claim 3, wherein a sealing gasket (16) is fixedly arranged at the bottom end of the baffle plate (8), the sealing gasket (16) is embedded into the inner wall of the second liquid outlet hole (15), and the second liquid outlet hole (15) is arranged at the bottom end of the first liquid outlet hole (7).
5. The bowl-type medium speed coal mill tire type grinding roller device according to claim 1, wherein a liquid adding hole (17) is formed in the top end of the tripod (5), and a liquid adding plug (18) is slidably arranged in the liquid adding hole (17).

Description

Bowl-type medium-speed coal mill tire type grinding roller device Technical Field The invention belongs to the technical field of coal mills, and particularly relates to a bowl-type medium-speed coal mill tire type grinding roller device. Background A bowl-type medium speed coal mill is a device for grinding and pulverizing coal, which is generally composed of bowl-shaped grinding discs, bowl-shaped grinding rollers, a conveying device, a motor, a speed reducer and the like, wherein the coal is subjected to the actions of the grinding discs and the grinding rollers inside the device, is ground into fine powder, and is then output or further processed through the conveying device. The equipment is mainly used in a coal grinding system and is used for meeting the requirements of industries such as thermal power generation, metallurgy, chemical industry and the like on the granularity and quality of coal powder, and the bowl-type medium-speed coal mill has the characteristics of simple structure, stable operation, high coal grinding efficiency, strong adaptability and the like, so that the equipment is widely applied to the field of coal grinding. The tyre type grinding roller device of the bowl-type medium-speed coal mill refers to a grinding roller on a grinding disc, the structure of the tyre type grinding roller device is similar to that of a tyre, and the tyre type grinding roller device is generally composed of a grinding roller bearing, a grinding roller tyre, a grinding roller seat and the like. Disclosure of Invention The invention aims to provide a bowl-type medium-speed coal mill tire type grinding roller device so as to solve the problems in the background art. In order to achieve the aim, the bowl-type medium-speed coal mill tire type grinding roller device comprises a coal mill main body, wherein a driving structure is arranged at the bottom end of the coal mill main body, a grinding disc is arranged in the coal mill main body, grinding rollers are arranged above the grinding disc, a plurality of grinding rollers are arranged, cleaning assemblies are arranged at the top end of each grinding roller, each grinding roller is fixedly arranged at the bottom end of a tripod, a lubricating assembly is arranged in the tripod, and a hydraulic pull rod is arranged at the bottom end of the tripod; The cleaning assembly comprises cleaning heads arranged at the top ends of the grinding rollers, the cleaning heads are uniformly arranged, the top ends of the cleaning heads are slidably mounted on the inner walls of connecting pipes, the connecting pipes are fixedly mounted at the bottom ends of second connecting plates, and the second connecting plates are slidably mounted on the inner walls of the triangular frames through moving assemblies. As a further technical scheme of the invention, the bottom end of the cleaning head is obliquely arranged. As a further technical scheme of the invention, the movable assembly comprises a fixed block fixedly arranged at the top end of the second connecting plate, one side of the fixed block is provided with a convex block, one side of the convex block is fixedly connected with a connecting rope, one end of the connecting rope, which is far away from the convex block, is arranged on the outer wall of the second connecting shaft, a second gear is fixedly arranged on the outer wall of the second connecting shaft, one side of the second gear is in meshed connection with a first gear, the inner wall of the first gear is fixedly connected with a first connecting shaft, one end of the first connecting shaft is fixedly connected with a second motor, the second motor is arranged in a motor box, and the motor box is fixedly arranged on the side wall of the tripod. As a further technical scheme of the invention, a second spring is connected between the cleaning head and the connecting pipe. As a further technical scheme of the invention, the first gear is provided as a sector gear. As a further technical scheme of the invention, the second connecting shaft is rotatably arranged on the inner wall of the tripod, and a first spring is arranged between the second connecting shaft and the tripod. As a further technical scheme of the invention, one side of the fixed block is fixedly connected with a third connecting rod, the third connecting rod is slidably arranged on the inner wall of the tripod, and a third spring is arranged on the outer wall of the third connecting rod. As a further technical scheme of the invention, the lubrication assembly comprises a first liquid outlet hole formed in the tripod, a baffle is slidably arranged in the first liquid outlet hole, a first connecting rod is fixedly arranged at the top end of the baffle, a second connecting rod is fixedly connected to the top end of the first connecting rod, a first connecting plate is fixedly arranged at the top end of the second connecting rod, a threaded rod is embedded into the inner wall of the first connecting plate,