CN215675270U

CN215675270U - Stifled coal device is prevented to thermal power plant powder process system

Info

Publication number: CN215675270U
Application number: CN202120601150.3U
Authority: CN
Inventors: 曹新明
Original assignee: Shanghai Zhongrong Heavy Machinery Parts Co ltd
Current assignee: Shanghai Zhongrong Heavy Machinery Parts Co ltd
Priority date: 2021-03-24
Filing date: 2021-03-24
Publication date: 2022-01-28
Anticipated expiration: 2031-03-24

Abstract

The utility model discloses a coal blockage preventing device of a coal pulverizing system of a thermal power plant, which comprises a base and a raw coal hopper, wherein a first coal gate is fixedly arranged at the top of the base, an outlet is fixedly arranged at the bottom of the first coal gate, a fixed seat is fixedly arranged at the bottom of the outlet, a gear is fixedly arranged inside the fixed seat, a conveying belt is movably arranged inside the fixed seat, a box body is fixedly arranged at the top of the first coal gate, a motor is fixedly arranged on the side wall of the box body, and a stirring blade is fixedly arranged at the output end of the motor. According to the utility model, wet coal is dried and stirred during coal blending, the phenomenon of adhesion of the stirred coal in the process of milling is not easy to occur, the phenomenon of coal blockage is reduced, the heating bin is arranged on the side wall of the raw coal hopper, hot air is introduced into the raw coal hopper to heat the raw coal hopper, the residual wet coal is dried, the raw coal hopper is vibrated by the vibrator to shake the raw coal hopper, and the side wall of the raw coal hopper is pulled open, so that the phenomenon of coal blockage is prevented.

Description

Stifled coal device is prevented to thermal power plant powder process system

Technical Field

The utility model relates to the technical field of anti-blocking coal, in particular to an anti-blocking coal device of a coal pulverizing system of a thermal power plant.

Background

The coal pulverizing system of the thermal power plant is an important system for manufacturing and conveying combustion media. The running continuity and the quality of the generated medium are directly related to the combustion working condition of the hearth, and the safe running of the unit is influenced. The raw coal is filled in a raw coal bin of the coal pulverizing system, is the first pass for conveying media to a hearth in the coal pulverizing system of a thermal power plant, and has a self-evident importance.

The raw coal hopper of the existing powder preparation system has the defects of large raw coal moisture, frequent coal blockage, unsmooth coal feeding and the like, particularly in rainy and snowy seasons, and the combustion stability and safety of a boiler hearth and the economical efficiency of the powder preparation system are seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a coal blockage preventing device for a coal pulverizing system of a thermal power plant, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a coal blockage preventing device of a coal pulverizing system of a thermal power plant comprises a base and a raw coal hopper, wherein a first coal gate is fixedly mounted at the top of the base, an outlet is fixedly mounted at the bottom of the first coal gate, a fixed seat is fixedly mounted at the bottom of the outlet, a gear is fixedly mounted inside the fixed seat, a conveying belt is movably mounted inside the fixed seat, a box body is fixedly mounted at the top of the first coal gate, a motor is fixedly mounted on the side wall of the box body, a stirring blade is fixedly mounted at the output end of the motor, a heating sheet is fixedly mounted inside the box body, a feeding hole is fixedly mounted at the top of the box body, a heating bin is fixedly mounted on the side wall of the raw coal hopper, an air inlet pipe is fixedly mounted on the side wall of the heating bin, an air outlet pipe is fixedly mounted on the side wall of the heating bin, and a vibrator is fixedly mounted on the side wall of the raw coal hopper, and a second coal gate is fixedly installed at the bottom of the raw coal hopper, and a pipeline is fixedly installed at the bottom of the second coal gate.

Preferably, the stirring blade is movably arranged in the box body, a stirring rod is fixedly arranged in the stirring blade, and one end of the stirring rod is movably connected with the inner wall of the box body.

Preferably, the number of the vibrators is two, and the two vibrators are symmetrically and fixedly arranged on two sides of the raw coal hopper.

Preferably, the number of the heating bins is two, and the two heating bins are fixedly arranged on two sides of the raw coal hopper in a symmetrical mode.

Preferably, the top of the raw coal hopper is provided with a through hole.

Preferably, the side wall of the box body is provided with a through hole, and one end of the stirring rod penetrates through the through hole to be fixedly connected with the output end of the motor.

Compared with the prior art, the utility model has the beneficial effects that: this stifled coal device is prevented to powder process system of thermal power plant dries the wet coal and stirs scatteredly when mixing the coal, stirs the coal after scattering and is carrying out the difficult phenomenon that takes place the adhesion of in-process of powder process, reduces the phenomenon of chute blockage, at the lateral wall installation heated warehouses of raw coal fill, and inside logical steam heats the raw coal fill, dries remaining wet coal, shakes the raw coal fill through the vibrator and shakes down with it, pulls open the lateral wall of raw coal fill, prevents to cause the chute blockage phenomenon.

Drawings

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

FIG. 2 is a schematic view showing the connection of a raw coal hopper, a heating chamber and a vibrator according to the present invention;

fig. 3 is a schematic view of the connection relationship between the fixing base, the gear and the conveyor belt.

In the figure: 1. a base; 2. a first coal gate; 3. an outlet; 4. a conveyor belt; 5. a fixed seat; 6. a gear; 7. a box body; 8. a motor; 9. stirring blades; 10. a heating plate; 11. a feed inlet; 12. a raw coal hopper; 13. a heating chamber; 14. an air inlet pipe; 15. an air outlet pipe; 16. a vibrator; 17. a second coal gate; 18. A pipeline.

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, an embodiment of the present invention is shown: a coal blockage preventing device of a coal pulverizing system of a thermal power plant comprises a base 1 and a raw coal hopper 12, a first coal gate 2 is fixedly installed at the top of the base 1, an outlet 3 is fixedly installed at the bottom of the first coal gate 2, a fixed seat 5 is fixedly installed at the bottom of the outlet 3, a gear 6 is fixedly installed inside the fixed seat 5, a conveyor belt 4 is movably installed inside the fixed seat 5, a groove is formed in the top of the fixed seat 5, a connecting shaft is fixedly installed on the side wall of the groove, the connecting shaft is connected with the shaft center of the gear 6, a motor 8 is installed at one end of the connecting shaft and is fixedly connected with the output end of the motor 8, a chain is installed on the inner wall of the conveyor belt 4 and is meshed with the gear 6, the gear 6 drives the conveyor belt 4 to rotate and convey, a box body 7 is fixedly installed at the top of the first coal gate 2, an exhaust fan is installed on the side wall of the box 7, and a motor 8 is fixedly installed on the side wall of the box 7, the side wall of the box body 7 is provided with a through hole, one end of the stirring rod passes through the through hole and is fixedly connected with the output end of the motor 8, the output end of the motor 8 is fixedly provided with a stirring blade 9, the stirring blade 9 is movably arranged inside the box body 7, the stirring rod is fixedly arranged inside the stirring blade 9, one end of the stirring rod is movably connected with the inner wall of the box body 7, the inside of the box body 7 is fixedly provided with a heating sheet 10, the top of the box body 7 is fixedly provided with a feed inlet 11, the side wall of the raw coal hopper 12 is fixedly provided with two heating cabins 13, the two heating cabins 13 are fixedly arranged at two sides of the raw coal hopper 12 in a symmetrical mode, the top of the raw coal hopper 12 is provided with a through hole, the side wall of the heating cabins 13 is fixedly provided with an air inlet pipe 14, the side wall of the heating cabins 13 is fixedly provided with an air outlet pipe 15, and the side wall of the raw coal hopper 12 is fixedly provided with a vibrator 16, the number of the vibrators 16 is two, the two vibrators 16 are symmetrically and fixedly mounted on two sides of the raw coal hopper 12, a second coal gate 17 is fixedly mounted at the bottom of the raw coal hopper 12, and a pipeline 18 is fixedly mounted at the bottom of the second coal gate 17.

The working principle is as follows: putting wet coal into a box body 7 from a feed inlet 11, starting a motor 8 and a heating sheet 10, wherein the motor 8 drives a stirring blade 9 to rotate, the stirring blade 9 stirs and scatters the wet coal in the box body 7, the heating sheet 10 heats and dries at the same time, the dried raw coal falls on a conveyor belt 4 from an outlet 3 by opening a first coal gate 2, a gear 6 is started, the conveyor belt 4 rotates on a fixing seat 5, dry coal is sent out and put into a raw coal hopper 12, hot air enters a heating bin 13 from an air inlet pipe 14, hot air is discharged from an air outlet pipe 15 again for circulation, the heating bin 13 heats the raw coal hopper 12, the coal adhered to the side wall of the raw coal hopper 12 is dried, the raw coal hopper 12 is vibrated by a vibrator 16, the adhered coal is shaken, a second coal gate 17 is opened, and the raw coal enters other processes from a pipeline 18.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or scope of the present invention. Accordingly, the embodiments of the utility model are exemplary, but not limiting. The scope of the utility model is indicated by the appended claims rather than by the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a stifled coal device is prevented to thermal power plant powder process system, includes base (1) and raw coal fill (12), its characterized in that: the top fixed mounting of base (1) has first coal gate (2), the bottom fixed mounting of first coal gate (2) has export (3), the bottom fixed mounting of export (3) has fixing base (5), the inside fixed mounting of fixing base (5) has gear (6), the inside movable mounting of fixing base (5) has conveyer belt (4), the top fixed mounting of first coal gate (2) has box (7), the lateral wall fixed mounting of box (7) has motor (8), the output fixed mounting of motor (8) has stirring leaf (9), the inside fixed mounting of box (7) has heating plate (10), the top fixed mounting of box (7) has feed inlet (11), the lateral wall fixed mounting of raw coal fill (12) has heating bunker (13), the lateral wall fixed mounting of heating bunker (13) has air-supply line (14), the lateral wall fixed mounting of heating bunker (13) has air-out pipe (15), the lateral wall fixed mounting of former coal scuttle (12) has vibrator (16), the bottom fixed mounting of former coal scuttle (12) has second coal gate (17), the bottom fixed mounting of second coal gate (17) has pipeline (18).

2. The coal blockage preventing device for the pulverizing system of the thermal power plant as claimed in claim 1, wherein: the stirring blade (9) is movably arranged in the box body (7), a stirring rod is fixedly arranged in the stirring blade (9), and one end of the stirring rod is movably connected with the inner wall of the box body (7).

3. The coal blockage preventing device for the pulverizing system of the thermal power plant as claimed in claim 1, wherein: the number of the vibrators (16) is two, and the two vibrators (16) are symmetrically fixedly arranged on two sides of the raw coal hopper (12).

4. The coal blockage preventing device for the pulverizing system of the thermal power plant as claimed in claim 1, wherein: the number of the heating bins (13) is two, and the two heating bins (13) are symmetrically fixedly arranged on two sides of the raw coal hopper (12).

5. The coal blockage preventing device for the pulverizing system of the thermal power plant as claimed in claim 1, wherein: the top of the raw coal hopper (12) is provided with a through hole.

6. The coal blockage preventing device for the pulverizing system of the thermal power plant as claimed in claim 2, wherein: the side wall of the box body (7) is provided with a through hole, and one end of the stirring rod penetrates through the through hole to be fixedly connected with the output end of the motor (8).