CN220436556U - Boiler coal drop pipe of thermal power plant - Google Patents

Abstract

The utility model discloses a boiler coal dropping pipe of a thermal power plant, which comprises a coal dropping hopper, wherein the upper end of the coal dropping hopper is fixedly provided with a baffle, the surface of one baffle is fixedly provided with a radar level meter, the upper end of the baffle is fixedly provided with a coal conveying pipe, the lower end of the coal dropping hopper is fixedly provided with a coal dropping vertical pipe, the lower end of the coal dropping vertical pipe is fixedly connected with a coal dropping inclined pipe, one end of the coal dropping inclined pipe is fixedly connected with a connecting flange, one end of the connecting flange is fixedly connected with a blowing pipe, a rotating shaft is rotatably connected inside the coal dropping inclined pipe, both ends of the rotating shaft extending out of the coal dropping inclined pipe are respectively connected with a limit nut in a threaded manner, and one end of the rotating shaft is fixedly connected with a first gear. This boiler coal breakage pipe of thermal power plant improves the condition that the coal breakage pipe is crowded through devices such as blowing pipe, arc tip plate, blade, fan, first gear, second gear.

Description

Boiler coal drop pipe of thermal power plant

Technical Field

The utility model belongs to the technical field of coal pipes, and particularly relates to a coal pipe for a boiler of a thermal power plant.

Background

The thermal power plant is a plant for producing electric energy by using combustible matters as fuel, wherein a boiler is one of main equipment of the thermal power plant, a coal dropping pipe is generally adopted in the boiler for coal supply operation, and the coal dropping pipe is a device for conveying coal in industries such as coal, ports, thermal power, coal dump stations, coal washing plants, coal-fired industrial boilers and the like.

The existing boiler coal dropping pipe has the following problems:

1. in the prior art, residual cinder can be attached to the inner wall of the coal chute after the coal chute is used for a long time, the cinder is adhered to and accumulated thicker to cause blockage after the coal chute is used for a long time, and meanwhile, moist coal can be attached to the inner wall of the coal chute to cause inconvenient blanking, so that certain blockage is caused, the combustion efficiency of a boiler of a thermal power plant is reduced, and the safe and economic operation of a unit is influenced.

2. In the prior art, coal materials enter the coal hopper from the coal conveying pipe, so that the coal hopper is easy to wear, the service life of the coal hopper is shortened, and meanwhile, if the coal hopper is in failure during working, the coal hopper is required to be shut down for maintenance, high maintenance cost is generated, and the economic burden is increased.

Disclosure of Invention

The utility model aims to provide a coal dropping pipe of a boiler of a thermal power plant, which aims to solve the technical problems in the background technology.

In order to achieve the above purpose, the specific technical scheme of the utility model is as follows: the utility model provides a boiler coal chute of thermal power plant, includes the coal hopper, the fixed baffle that is provided with in coal hopper upper end, baffle fixed surface is provided with radar level meter, baffle upper end fixedly provided with coal conveying pipe, the coal hopper lower extreme fixedly provided with coal chute, coal chute lower extreme fixedly connected with coal chute, coal chute one end fixedly connected with flange, flange one end fixedly connected with blowing pipe, the inside rotation of coal chute is connected with the pivot, the equal threaded connection in both ends of pivot extension coal chute has stop nut, pivot one end fixedly connected with first gear.

Preferably, a drainage plate is fixedly arranged in the coal dropping hopper.

Preferably, the surface of the rotating shaft is fixedly provided with a blade, and one end of the rotating shaft is fixedly provided with an arc tip plate.

Preferably, the coal falling inclined tube surface is fixedly provided with a motor bracket, and the motor bracket surface is fixedly provided with a motor.

Preferably, the output end of the motor is fixedly provided with a second gear, and the second gear is meshed with the first gear.

Preferably, the coal dropping standpipe surface is fixedly provided with an overhaul pipe, the surface of the overhaul pipe is rotationally connected with a plugging plate, and the surface of the plugging plate is fixedly connected with a rotator.

Preferably, the surface of the plugging plate is fixedly connected with a handle.

The boiler coal dropping pipe of the thermal power plant has the following advantages:

1. this boiler coal drop pipe of thermal power plant improves the circumstances that the coal drop pipe was crowded through devices such as blowpipe, the arc tip board, the blade, the fan, first gear, the second gear, the coal material gets into the coal drop fill through the coal delivery pipe, get into the coal drop standpipe afterwards, when through the end of coal drop standpipe, the motor in the work drives the second gear and rotates, thereby drive first gear rotation, first gear drives the epaxial blade of pivot again and rotates with the arc tip board, the blade is used for cutting and scattering the coal material that falls down, make the coal material more easily remove, the top of arc tip board is sharp-pointed, make the coal material that falls down above easily scatter, reduce the possibility that the coal material blockked up, fall into the coal chute through the coal material that beats, blow in the blowpipe this moment, make the coal material more easily remove in the coal chute, the condition that the coal material takes place to block up has been improved, thereby the efficiency of coal drop pipe work has been improved.

2. This boiler coal breakage pipe of thermal power plant makes coal breakage pipe maintenance row stifled easier through devices such as radar level gauge, the drainage board, overhaul the pipe, the shutoff board, the rotor, the handle, the security of boiler operation has been increased greatly, the high amount expense of producing because of shutting down the maintenance at every turn has been practiced thrift, when the coal material gets into the coal breakage fill from the coal conveying pipe, be provided with the drainage board in the coal breakage fill, not only have the effect that the guide coal material removed, the wearing and tearing to the coal breakage fill when having reduced the material and falling into, economic benefits has been improved, simultaneously when the device breaks down, can know the situation in the coal breakage pipe through the radar level gauge on the baffle, later through relieving fastening bolt on the shutoff board, the pulling handle, the shutoff board is opened in the rotor is rotated, the entering overhaul pipe overhauls, the maintenance row is blocked more easily, the security of boiler operation has been increased.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of a coal dropping pipe of a boiler of a thermal power plant;

FIG. 2 is a schematic view of a coal hopper structure of a coal pipe of a boiler of a thermal power plant;

FIG. 3 is a partial cross-sectional view of a coal drop tube of a thermal power plant boiler in accordance with the present utility model;

fig. 4 is an enlarged view of the structure at a in fig. 1.

The figure indicates: 1. a coal dropping hopper; 2. a baffle; 3. a radar level gauge; 4. a coal conveying pipe; 5. a drainage plate; 6. a coal drop standpipe; 7. coal falling inclined tube; 8. a connecting flange; 9. a blowing pipe; 10. a rotating shaft; 11. a limit nut; 12. a first gear; 13. arc tip plate; 14. a blade; 15. a motor; 16. a second gear; 17. a motor bracket; 18. a service pipe; 19. a plugging plate; 20. a rotator; 21. a handle.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in numerous different ways without departing from the spirit or scope of the embodiments of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

In the description of the embodiments of the present utility model, it should be understood that the terms "length," "vertical," "horizontal," "top," "bottom," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience in describing the embodiments of the present utility model and to simplify the description, rather than to indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

The following disclosure provides many different implementations, or examples, for implementing different configurations of embodiments of the utility model. In order to simplify the disclosure of embodiments of the present utility model, components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit embodiments of the present utility model. Furthermore, embodiments of the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.

For a better understanding of the objects, structure and function of the utility model, a further detailed description of the utility model is provided below with reference to the accompanying drawings.

As shown in figures 1-4, the boiler coal dropping pipe of the thermal power plant comprises a coal dropping hopper 1, wherein the upper end of the coal dropping hopper 1 is fixedly provided with a baffle plate 2, the baffle plate 2 not only can bear load, but also can prevent the emission of smoke dust, the surface of the baffle plate 2 is fixedly provided with a radar level meter 3, the radar level meter 3 can know the condition of coal in the coal dropping pipe, the surface of the baffle plate 2 is fixedly provided with a coal conveying pipe 4, the coal is conveyed into the coal dropping hopper 1 from the coal conveying pipe 4, the lower end of the coal dropping hopper 1 is fixedly provided with a coal dropping vertical pipe 6, the lower end of the coal dropping vertical pipe 6 is fixedly connected with a coal dropping inclined pipe 7, one end of the coal dropping inclined pipe 7 is fixedly connected with a connecting flange 8, the devices at the two ends of the flange are fixedly connected with a blowing pipe 9, the blowing in the blowing pipe 9 provides power for the movement of the coal, the coal dropping inclined pipe 7 is internally and rotatably connected with a rotating shaft 10, both ends of the rotary shaft 10 extending out of the coal dropping inclined tube 7 are connected with limit nuts 11 in a threaded manner, the limit nuts 11 limit the displacement of the rotary shaft 10, one end of the rotary shaft 10 is fixedly connected with a first gear 12, a drainage plate 5 is fixedly arranged in the coal dropping hopper 1, the drainage plate 5 has the function of guiding the movement of coal, the abrasion of the coal dropping hopper 1 caused by the falling of materials is reduced, a blade 14 is fixedly arranged on the surface of the rotary shaft 10, the blade 14 rotates to scatter the falling coal, the falling coal is easier to move, an arc-tip plate 13 is fixedly arranged at one end of the rotary shaft 10, the top end of the arc-tip plate 13 is sharp, the falling coal above is easy to scatter, a motor bracket 17 is fixedly arranged on the surface of the coal dropping inclined tube 7, a motor 15 is fixedly arranged on the surface of the motor bracket 17, the motor 15 is fixedly connected with the motor bracket 17, the output end of the motor 15 is fixedly provided with a second gear 16, the second gear 16 is meshed with the first gear 12, the coal drop vertical pipe 6 fixed surface is provided with the maintenance pipe 18, maintenance personnel can get into the inside inspection of coal drop pipe through the maintenance pipe 18, and maintenance pipe 18 surface rotation is connected with shutoff board 19, shutoff board 19 fixed surface is connected with rotor 20, and rotor 20 comprises axis of rotation, connecting block, gag lever post, shutoff board 19 fixed surface is connected with handle 21, and handle 21 makes the maintenance personnel open shutoff board 19 more laborsaving when maintaining.

The working principle of the coal dropping pipe of the boiler of the thermal power plant is as follows: the coal material gets into coal hopper 1 through coal conveying pipe 4, be provided with drainage board 5 in the coal hopper 1, not only have the effect that the guide coal material removed, the wearing and tearing to coal hopper 1 when having reduced the material and falling into in addition, economic benefits have been improved, afterwards, the material gets into coal standpipe 6, when passing through coal standpipe 6 end, the motor 15 in the work drives second gear rotation 16, thereby drive first gear 12 rotation, first gear 12 drives blade 14 and arc tip plate 13 rotation on pivot 10 again, blade 14 is used for cutting and scattering the coal material that falls down, make the coal material more easily remove, the top of arc tip plate 13 is sharp-pointed, make the coal material that the top falls down easily beat, reduce the possibility that the coal material blockked up, fall into coal chute 7 through beating, blow in the blowing pipe 9 this moment, make the coal material more easily remove in coal chute 7, the condition that the coal material takes place the jam has been improved, thereby improved the efficiency of coal chute work, simultaneously when the device breaks down, can be through the radar position meter 3 on baffle 2 and rotate, the maintenance plug 21 has been removed because of the maintenance plug 21, the maintenance plug is realized to the high, the maintenance plug-and the maintenance plug is realized, the maintenance plug is more easily, the maintenance plug is opened and the maintenance plug is had the 21 has been removed.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (7)

1. The utility model provides a boiler coal breakage pipe of thermal power plant, includes coal breakage fill (1), its characterized in that: the coal dropping hopper is characterized in that a baffle plate (2) is fixedly arranged at the upper end of the coal dropping hopper (1), a radar level gauge (3) is fixedly arranged on the surface of the baffle plate (2), a coal conveying pipe (4) is fixedly arranged at the upper end of the baffle plate (2), a coal dropping vertical pipe (6) is fixedly arranged at the lower end of the coal dropping hopper (1), a coal dropping inclined pipe (7) is fixedly connected to the lower end of the coal dropping vertical pipe (6), a connecting flange (8) is fixedly connected to one end of the coal dropping inclined pipe (7), a blowing pipe (9) is fixedly connected to one end of the connecting flange (8), a rotating shaft (10) is connected to the inside of the coal dropping inclined pipe (7) in a rotating mode, limiting nuts (11) are connected to the two ends of the rotating shaft (10) in a threaded mode, and a first gear (12) is fixedly connected to one end of the rotating shaft (10).

2. A thermal power plant boiler coal drop tube according to claim 1, characterized in that: the coal dropping hopper (1) is internally and fixedly provided with a drainage plate (5).

3. A thermal power plant boiler coal drop tube according to claim 1, characterized in that: the surface of the rotating shaft (10) is fixedly provided with a blade (14), and one end of the rotating shaft (10) is fixedly provided with an arc tip plate (13).

4. A thermal power plant boiler coal drop tube according to claim 1, characterized in that: the coal falling inclined tube (7) is fixedly provided with a motor bracket (17) on the surface, and a motor (15) is fixedly arranged on the surface of the motor bracket (17).

5. The boiler coal drop tube of a thermal power plant according to claim 4, wherein: the output end of the motor (15) is fixedly provided with a second gear (16), and the second gear (16) is meshed with the first gear (12).

6. A thermal power plant boiler coal drop tube according to claim 1, characterized in that: the coal dropping vertical pipe (6) is fixedly provided with an overhaul pipe (18), the surface of the overhaul pipe (18) is rotationally connected with a plugging plate (19), and the surface of the plugging plate (19) is fixedly connected with a rotator (20).

7. The boiler coal drop tube of a thermal power plant according to claim 6, wherein: the surface of the plugging plate (19) is fixedly connected with a handle (21).