CN112121924A

CN112121924A - Coal-grinding, powder-making and grinding system of vertical coal mill

Info

Publication number: CN112121924A
Application number: CN202010964607.7A
Authority: CN
Inventors: 徐荣军
Original assignee: Taizhou Mingfeng Renewable Resources Technology Co ltd
Current assignee: Taizhou Mingfeng Renewable Resources Technology Co ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2020-12-25

Abstract

The invention relates to the technical field of coal mills, and discloses a coal-grinding powder-making grinding system of a vertical coal mill, which comprises a supporting plate, wherein threaded rods are arranged inside a first groove and a second groove, a damping spring is sleeved outside the threaded rods, a threaded cap is arranged on the threaded rods, a lower shell is arranged at the top of an installation plate, an upper shell is arranged at the top of the lower shell, second radiating fins are welded outside the upper shell, first radiating fins are welded outside the lower shell, and radiating fans are arranged on the surfaces of the first radiating fins. According to the coal-grinding powder-making grinding system of the vertical coal mill, the first radiating fins, the second radiating fins, the radiating fan and the damping springs are arranged, so that the coal-grinding powder-making grinding system has a high-efficiency radiating function and a damping function, the radiating rate of equipment is effectively improved, the service life is prolonged, vibration is reduced, noise is reduced, and the working comfort level is improved.

Description

Coal-grinding, powder-making and grinding system of vertical coal mill

Technical Field

The invention relates to the technical field of coal mills, in particular to a coal-grinding, powder-making and grinding system of a vertical coal mill.

Background

Coal mills are machines for breaking up and grinding coal briquettes into coal dust, which are important auxiliary equipment for coal dust furnaces. The coal grinding process is a process that coal is crushed and the surface area of the coal is increased continuously. To increase the new surface area, the binding force between solid molecules must be overcome, and thus energy is consumed. The coal is ground into coal powder in a coal mill mainly by three modes of crushing, smashing and grinding. Wherein the energy consumed by the crushing process is the least. The grinding process is most energy intensive. The two or three modes of the various coal mills are combined in the pulverizing process, but the main mode is determined by the type of the coal mill.

At present, vertical coal pulverizer is when the operation, grind the coal cinder into powder through the cooperation of mill and grinding roller, and can produce a large amount of heats at the in-process of grinding, because current equipment all is in encapsulated situation, lead to its radiating efficiency extremely poor, and the internal plant that leads to coal pulverizer is in high temperature state for a long time, the phenomenon appears burning out easily, seriously influence its life, and simultaneously, at the in-process of coal grinding, equipment can produce vibrations, influence the normal operating of internal plant, and can produce the noise, influence staff's operational environment, consequently, need improve it.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a coal-grinding pulverizing system of a vertical coal mill, which has the advantages of high-efficiency heat dissipation function and shock absorption function, and solves the problems that in the actual use process of the conventional vertical coal mill, heat generated in the coal grinding process cannot be dissipated and is accumulated in the equipment due to the sealing state, so that the internal equipment is easy to burn out due to the long-term high temperature, the service life is low, and meanwhile, in the coal grinding process, the equipment can vibrate to influence the normal operation of the internal equipment, generate noise and influence the working environment of working personnel.

The invention provides the following technical scheme: the utility model provides a coal-grinding powder pulverizing system of vertical coal pulverizer, includes the backup pad, the top of backup pad is provided with the mounting panel, first recess has all been seted up in the four corners of mounting panel bottom, the second recess has all been seted up on the mounting panel surface directly over the first recess, the inside of first recess, second recess is provided with the threaded rod, the outside cover of threaded rod is equipped with damping spring, and is provided with the screw cap on the threaded rod, the casing is installed down at the top of mounting panel, the casing is installed at the top of casing down, the external welding of going up the casing has second radiating fin, the external welding of casing has first radiating fin down, first radiating fin's surface mounting has radiator fan.

Preferably, the powder concentrator is installed inside the upper shell, and a finished product outlet is installed at the top of the upper shell.

Preferably, the speed reducer is installed to the inside bottom of lower casing, driving motor is installed at the top of mounting panel, driving motor's output is connected with the speed reducer, the mill is installed to the tip of speed reducer.

Preferably, a hydraulic oil cylinder is installed at the top of the installation plate, a grinding roller is arranged in the lower shell, and the output end of the hydraulic oil cylinder is connected with the grinding roller through a rocker arm.

Preferably, one side of the lower shell is provided with a rotary feeder, and the end part of the rotary feeder is connected with the lower shell through a feeding chute.

Preferably, the diameter of the first groove is larger than that of the second groove, and the tail end of the threaded rod is welded to the top of the support plate.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the coal-grinding powder-pulverizing grinding system of the vertical coal mill, the first radiating fins, the second radiating fins and the damping springs are arranged, so that the coal-grinding powder-pulverizing grinding system has a high-efficiency radiating function, the radiating efficiency of equipment is effectively improved, the service life is prolonged, when the coal-grinding powder-pulverizing grinding system is used, the contact area between the lower shell and air is increased through the first radiating fins, the radiating efficiency is improved, the radiating rate is further improved through the radiating fan, the damage of internal equipment due to the fact that the internal equipment is at high temperature for a long time is effectively avoided, the contact area between the upper shell and the air can be improved through the second radiating fins, and the radiating efficiency is improved.

2. According to the coal-grinding powder-pulverizing grinding system of the vertical coal mill, the damping spring, the threaded rod and the threaded cap are arranged, so that the damping system has a damping function, the vibration force generated when the equipment works is effectively reduced, the service life is prolonged, when the equipment works and generates vibration, the damping spring is pressed by the pressing force of the mounting plate to realize compression, further the damping system can buffer and reduce pressure according to the characteristics of the damping system, and when the vibration is severe, a worker can adjust and shorten the length of the damping spring between the mounting plate and the supporting plate by rotating the threaded cap, so that the vibration amplitude is reduced, and the damping effect is realized.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic view of a portion of the structure shown in FIG. 1.

In the figure: 1. a support plate; 2. mounting a plate; 3. a lower housing; 4. an upper housing; 5. a finished product outlet; 6. selecting a powder machine; 7. rotating the blanking device; 8. a feeding chute; 9. grinding the roller; 10. a grinding disc; 11. a hydraulic cylinder; 12. a speed reducer; 13. a drive motor; 14. a rocker arm; 15. an air duct; 16. a first heat radiation fin; 17. a heat radiation fan; 18. a first groove; 19. a second groove; 20. a threaded rod; 21. a threaded cap; 22. a damping spring; 23. and a second heat dissipation fin.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a coal pulverizing and grinding system of a vertical coal mill comprises a support plate 1, a mounting plate 2 is arranged at the top of the support plate 1, first grooves 18 are formed at four corners of the bottom of the mounting plate 2, second grooves 19 are formed in the surface of the mounting plate 2 right above the first grooves 18, threaded rods 20 are arranged inside the first grooves 18 and the second grooves 19, the diameter of the first grooves 18 is larger than that of the second grooves 19, the tail ends of the threaded rods 20 are welded at the top of the support plate 1, damping springs 22 are sleeved outside the threaded rods 20, threaded caps 21 are arranged on the threaded rods 20, a lower shell 3 is arranged at the top of the mounting plate 2, a speed reducer 12 is arranged at the bottom inside of the lower shell 3, a driving motor 13 is arranged at the top of the mounting plate 2, the driving motor 13 is in the prior art, and the type of the driving motor 13 is suitable for YBBP-, the output and the speed reducer 12 of driving motor 13 are connected, mill 10 is installed to the tip of speed reducer 12, hydraulic cylinder 11 is installed at the top of mounting panel 2, lower casing 3's inside is provided with grinding roller 9, hydraulic cylinder 11's output passes through rocking arm 14 and is connected with grinding roller 9, casing 4 is installed at lower casing 3's top, the internally mounted of going up casing 4 has powder concentrator 6, finished product export 5 is installed at the top of going up casing 4, one side of lower casing 3 is provided with glassware 7 under the gyration, the tip of glassware 7 is passed through feed elephant trunk 8 and is connected with lower casing 3 under the gyration, the external welding of going up casing 4 has second radiating fin 23, the external welding of casing 3 has first radiating fin 16 down, the surface mounting of first radiating fin 16 has radiator fan 17.

During operation, the area of contact between casing 3 and the air under the increase of accessible first radiating fin 16, improve its radiating efficiency, and further optimize through radiator fan 17 and improve rate of heat dissipation, effectively avoid the internal plant to be damaged because of being in high temperature for a long time, and can improve the area of contact between upper housing 4 and the air through second radiating fin 23, improve radiating efficiency, simultaneously, when grinding during operation, when vibrations appear in the equipment, damping spring 22 receives the pressing force of mounting panel 2, realize the compression, and then can make it cushion the decompression according to the characteristic of self, and when vibrations are violent, staff's accessible rotates screw cap 21, adjust and shorten the length that damping spring 22 is located between mounting panel and backup pad 1, thereby reduce the vibration range, realize the shock attenuation effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a coal-grinding powder process grinding system of vertical coal pulverizer, includes backup pad (1), its characterized in that: the top of the supporting plate (1) is provided with a mounting plate (2), four corners of the bottom of the mounting plate (2) are provided with first grooves (18), the surface of the mounting plate (2) right above the first groove (18) is provided with a second groove (19), a threaded rod (20) is arranged inside the first groove (18) and the second groove (19), a damping spring (22) is sleeved outside the threaded rod (20), a threaded cap (21) is arranged on the threaded rod (20), a lower shell (3) is arranged at the top of the mounting plate (2), the top of the lower shell (3) is provided with an upper shell (4), the outside of the upper shell (4) is welded with second radiating fins (23), the outer welding of lower casing (3) has first radiating fin (16), radiator fan (17) are installed to the surface of first radiating fin (16).

2. The coal pulverizing system of the vertical coal mill according to claim 1, characterized in that: the powder concentrator is characterized in that the powder concentrator (6) is installed inside the upper shell (4), and the finished product outlet (5) is installed at the top of the upper shell (4).

3. The coal pulverizing system of the vertical coal mill according to claim 1, characterized in that: speed reducer (12) are installed to the inside bottom of lower casing (3), driving motor (13) are installed at the top of mounting panel (2), the output and speed reducer (12) of driving motor (13) are connected, mill (10) are installed to the tip of speed reducer (12).

4. The coal pulverizing system of the vertical coal mill according to claim 1, characterized in that: the grinding device is characterized in that a hydraulic oil cylinder (11) is installed at the top of the installation plate (2), a grinding roller (9) is arranged in the lower shell (3), and the output end of the hydraulic oil cylinder (11) is connected with the grinding roller (9) through a rocker arm (14).

5. The coal pulverizing system of the vertical coal mill according to claim 1, characterized in that: a rotary feeder (7) is arranged on one side of the lower shell (3), and the end part of the rotary feeder (7) is connected with the lower shell (3) through a feeding chute (8).

6. The coal pulverizing system of the vertical coal mill according to claim 1, characterized in that: the diameter of the first groove (18) is larger than that of the second groove (19), and the tail end of the threaded rod (20) is welded to the top of the support plate (1).