CN215930469U - Coal-fired drying device for thermal power plant - Google Patents

Abstract

The embodiment of the utility model provides a drying device for fire coal used in a thermal power plant, which comprises: a shifting device and a buffer device; the poking device comprises a motor, a wheel disc and poking rods, the shaft end of the motor is coaxially arranged in the middle of the wheel disc, six poking rods are fixedly distributed on the side edge of the wheel disc in an annular array mode, a gap exists between the end portion of each poking rod and the conveying surface of the first conveying device, the end portion of each poking rod is V-shaped, the motor is fixed on the motor base, and the motor base is fixed on the shell; buffer includes swash plate, spring, four support columns, bottom plate, and the bottom welding of support column is on second transmission device's both sides support, and the top welding of support column is on the bottom surface of bottom plate, and fixed being equipped with between swash plate and the bottom plate is along the flexible spring of vertical direction, and the swash plate is located below first transmission device's the tip.

Description

Coal-fired drying device for thermal power plant

Technical Field

The utility model relates to the technical field of drying devices, in particular to a coal-fired drying device for a thermal power plant.

Background

The power plant utilizes the heat that fuel burning produced to make water become the superheated steam that has certain temperature and pressure to drive the steam turbine electricity generation, current coal-fired drying equipment drying efficiency is not high, and it is not good to cover the coal-fired stoving effect in the lower part at the stoving in-process.

SUMMERY OF THE UTILITY MODEL

The utility model provides a coal drying device for a thermal power plant, and aims to solve the problems in the background technology. In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a thermal power plant is with drying device of coal-fired, includes the casing, advances coal mouth, first transmission device, air intake, second transmission device, goes out the coal mouth, first transmission device, second transmission device level dislocation set are in inside the casing, still include: a shifting device and a buffer device; the shifting device comprises a motor, a wheel disc and shifting rods, wherein the shaft end of the motor is coaxially arranged in the middle of the wheel disc, six shifting rods are fixedly distributed on the side edge of the wheel disc in an annular array mode, a gap exists between the end part of each shifting rod and the conveying surface of the first conveying device, the end part of each shifting rod is in a V shape, the motor is fixed on a motor base, and the motor base is fixed on the shell;

the buffer device comprises an inclined plate, springs, four supporting columns and a bottom plate, the bottom ends of the supporting columns are welded to brackets on two sides of the second transmission device, the top ends of the supporting columns are welded to the bottom surface of the bottom plate, the springs which stretch in the vertical direction are fixedly arranged between the inclined plate and the bottom plate, the inclination angle of the inclined plate is 50-60 degrees, and the inclined plate is located below the end portion of the first transmission device.

Further, the motor is a single-rotation motor.

Further, the first transmission device and the second transmission device are both conveyor belts.

Compared with the prior art, the utility model has the following advantages;

according to the coal drying device for the thermal power plant, the coal is dried more easily by arranging the shifting device, the damage to the second transmission device caused by the direct falling of the coal is reduced by arranging the buffer device, and the service life of the second transmission device is prolonged.

In addition to the technical problems addressed by the present invention, the technical features constituting the technical solutions, and the advantageous effects brought by the technical features of the technical solutions described above, other technical problems that the present invention can solve, other technical features included in the technical solutions, and advantageous effects brought by the technical features will be described in further detail in the detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a schematic structural diagram of a coal-fired drying device for a thermal power plant according to an embodiment of the present invention.

Reference numerals:

1. a housing; 2. a coal inlet; 3. a first transmission device; 4. an air inlet; 5. a shifting device; 6. a sloping plate; 7. a spring; 8. a support pillar; 9. a base plate; 10. a second transmission device; 11. A coal outlet.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all 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, an embodiment of the present invention provides a coal drying device for a thermal power plant, including a housing 1, a coal inlet 2, a first conveying device 3, an air inlet 4, a second conveying device 10, and a coal outlet 11, where the first conveying device and the second conveying device are horizontally disposed in the housing 1 in a staggered manner, and further including: the stirring device 5 and the buffering device; the poking device 5 comprises a motor, a wheel disc and poking rods, the shaft end of the motor is coaxially arranged in the middle of the wheel disc, six poking rods are fixedly distributed on the side edge of the wheel disc in an annular array mode, a gap exists between the end part of each poking rod and the conveying surface of the first conveying device 3, the end part of each poking rod is V-shaped, the motor is fixed on a motor base, and the motor base is fixed on the shell 1;

the buffer device comprises an inclined plate 6, springs 7, four supporting columns 8 and a bottom plate 9, the bottom ends of the supporting columns 8 are welded on supports on two sides of a second transmission device 10, the top ends of the supporting columns 8 are welded on the bottom surface of the bottom plate 9, the springs 7 which stretch out and draw back in the vertical direction are fixedly arranged between the inclined plate 6 and the bottom plate 9, the inclination angle of the inclined plate 6 is 50-60 degrees, and the inclined plate 6 is located below the end part of the first transmission device.

Further, the motor is a single-rotation motor.

Further, the first conveying device 3 and the second conveying device 10 are both conveyor belts.

It should be noted that the conveyor belt and the motor are all techniques that can be found and used by those skilled in the art. The air inlet 4 is connected with an air outlet of a heat source, hot air is fed into the device by the heat source, and the diagonally wet coal is dried. The inside of the equipment is always dried by hot air, and the temperature of the hot air close to the air inlet 4 is higher than that of the hot air at other positions.

When the coal drying device is used, coal falls into the first conveying device from the coal inlet 2, is dried through the hot air port, and rolls to fall into the buffering device through the shifting device 5, falls into the second conveying device again, and falls from the coal outlet 11 through the second conveying device.

Through setting up toggle 5, make the coal dry more easily, set up buffer, reduced the direct damage that drops to second transmission device of coal, prolonged second transmission device's life.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (3)

1. The utility model provides a thermal power plant is with drying device of coal-fired, includes the casing, advances coal mouth, first transmission device, air intake, second transmission device, goes out the coal mouth, first transmission device, second transmission device level dislocation set are in inside the casing, its characterized in that still includes: a shifting device and a buffer device; the shifting device comprises a motor, a wheel disc and shifting rods, wherein the shaft end of the motor is coaxially arranged in the middle of the wheel disc, six shifting rods are fixedly distributed on the side edge of the wheel disc in an annular array mode, a gap exists between the end part of each shifting rod and the conveying surface of the first conveying device, the end part of each shifting rod is in a V shape, the motor is fixed on a motor base, and the motor base is fixed on the shell;

the buffer device comprises an inclined plate, springs, four supporting columns and a bottom plate, the bottom ends of the supporting columns are welded to brackets on two sides of the second transmission device, the top ends of the supporting columns are welded to the bottom surface of the bottom plate, the springs which stretch in the vertical direction are fixedly arranged between the inclined plate and the bottom plate, the inclination angle of the inclined plate is 50-60 degrees, and the inclined plate is located below the end portion of the first transmission device.

2. The coal-fired drying device for thermal power plants according to claim 1, wherein the motor is a single-rotation motor.

3. The coal drying device for the thermal power plant according to claim 1, wherein the first conveying device and the second conveying device are both conveyor belts.

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