CN215946169U

CN215946169U - Ash removal system with combined design of ash storehouse and dust remover

Info

Publication number: CN215946169U
Application number: CN202122131790.5U
Authority: CN
Inventors: 王仕能; 许华; 刘育林
Original assignee: Southwest Electric Power Design Institute Co Ltd of China Power Engineering Consulting Group
Current assignee: Southwest Electric Power Design Institute Co Ltd of China Power Engineering Consulting Group
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-03-04
Anticipated expiration: 2031-09-03

Abstract

The utility model discloses an ash removal system with an ash storehouse and a dust remover in combined design, which comprises a dust remover, a dust hopper of the dust remover, wet ash discharging equipment, dry ash discharging equipment and a dust suppression system, wherein the wet ash discharging equipment is connected with the dust remover; the dust remover ash bucket is connected with the dust remover, wet ash discharging equipment and dry ash discharging equipment are arranged below the dust remover ash bucket, and the wet ash discharging equipment and the dry ash discharging equipment are both connected with the dust remover ash bucket; the wet ash unloading equipment and the dry ash unloading equipment are both arranged in the closed enclosing wall, the wet ash unloading equipment and the dry ash unloading equipment are used for transporting the ash residue car outwards for unloading, and a dust suppression system is arranged in the closed enclosing wall; the utility model cancels the fly ash pneumatic conveying system in the prior art, does not need to independently arrange a fly ash warehouse, saves the initial investment, reduces the operation energy consumption, reduces the maintenance cost and the like.

Description

Ash removal system with combined design of ash storehouse and dust remover

Technical Field

The utility model relates to the field of fly ash conveying and storing of power plants, in particular to an ash removal system with an ash silo and a dust remover in combined design.

Background

The flue gas generated by the boiler in the power plant contains a large amount of dust particles, the particles in the flue gas are collected in an ash bucket at the lower part of the dust remover after the flue gas is filtered by the dust remover, and the collected particles are called fly ash. In the conventional design, the dust hopper volume of the dust remover can store the fly ash amount for 8 hours at most, so that a power plant needs to arrange a special fly ash storage to store the fly ash, and the storage requirement of 24-48 hours required by the regulation specification is met. The fly ash storage is typically located in an area remote from the boiler house. The fly ash in the ash hopper of the dust remover is conveyed to a fly ash warehouse for storage in a pneumatic conveying mode. The pneumatic conveying system has the defects of high energy consumption, pipeline abrasion and the like, and the problems of high operation and maintenance cost and the like of the system.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, and provides an ash removal system with an ash storehouse and a dust remover in a combined design, which cancels a fly ash pneumatic conveying system in the prior art, does not independently arrange the fly ash storehouse any more, saves initial investment, reduces operation energy consumption, reduces maintenance cost and the like.

The purpose of the utility model is realized by the following scheme:

a dust removal system with combined design of an ash storehouse and a dust remover comprises the dust remover, a dust hopper of the dust remover, wet dust discharging equipment, dry dust discharging equipment and a dust suppression system; the dust remover ash bucket is connected with the dust remover, wet ash discharging equipment and dry ash discharging equipment are arranged below the dust remover ash bucket, and the wet ash discharging equipment and the dry ash discharging equipment are both connected with the dust remover ash bucket; the wet ash unloading equipment and the dry ash unloading equipment are both arranged in the closed enclosing wall, the wet ash unloading equipment and the dry ash unloading equipment are used for outwards transporting the ash residue vehicle for unloading, and the dust suppression system is arranged in the closed enclosing wall.

Furthermore, a first discharging switch is arranged on a connecting pipeline between the wet ash discharging device and the ash hopper of the dust remover.

And furthermore, a second discharging switch is arranged on a connecting pipeline between the dry ash discharging device and the ash hopper of the dust remover.

Further, the size of the dust remover ash bucket is not less than 24 hours of ash storage volume.

Further, the ash removal system which is designed by combining the ash storehouse with the dust remover is arranged on the running layer.

Furthermore, an ash conveying road, a loading control room and a flue gas inlet are arranged on the operation layer.

The utility model has the beneficial effects that:

the fly ash storehouse and the dust remover are designed in a combined manner, a fly ash pneumatic conveying system in the prior art is omitted, the fly ash storehouse is not arranged independently, initial investment is saved, operation energy consumption is reduced, and maintenance cost is reduced;

the embodiment of the utility model can improve the storage time of the fly ash from 8 hours to 24-48 hours by enlarging the volume of the ash hopper of the dust remover, can directly arrange wet ash unloading equipment, dry ash unloading equipment and the like below the ash hopper of the dust remover to realize loading and outward transportation, and can reduce the operation energy consumption, the maintenance cost and the like based on the transformation of the operation layer.

Drawings

The drawings in the following description are only some embodiments of the utility model, and other drawings can be derived by those skilled in the art without inventive exercise.

FIG. 1 is a first schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a second structural diagram according to the embodiment of the present invention; (ii) a

FIG. 3 is a first running layer layout of an embodiment of the present invention;

FIG. 4 is a second running layer layout of an embodiment of the present invention;

FIG. 5 is a prior art fly ash storage conveyor system;

in the figure, 11-dust remover, 12-dust remover ash hopper, 13-wet ash unloading equipment, 14-dry ash unloading equipment, 15-external ash conveying vehicle, 16-closed enclosing wall, 17-dust suppression system, 20-fly ash conveyor, 21-ash pipe, 22-first air storage tank, 23-air drier, 24-second air storage tank, 25-air pipe network, 26-valve and 27-screw air compressor.

Detailed Description

All of the features disclosed in all of the embodiments in this specification, or all of the steps in all of the methods or processes implicitly disclosed, may be combined or substituted in any way, except where mutually exclusive features and/or steps are present.

As shown in fig. 1 to 5, an ash removing system designed by combining an ash storehouse and a dust remover comprises a dust remover 11, a dust hopper 12 of the dust remover, a wet ash discharging device 13, a dry ash discharging device 14 and a dust suppression system 17; the dust remover ash bucket 12 is connected with the dust remover 11, wet ash discharging equipment 13 and dry ash discharging equipment 14 are arranged below the dust remover ash bucket 12, and the wet ash discharging equipment 13 and the dry ash discharging equipment 14 are both connected with the dust remover ash bucket 12; the wet ash discharging device 13 and the dry ash discharging device 14 are both arranged in a closed enclosing wall 16, the wet ash discharging device 13 and the dry ash discharging device 14 are used for transporting the ash residue vehicle 15 outwards for discharging, and the dust suppression system 17 is arranged in the closed enclosing wall 16.

In an alternative embodiment, a first discharge switch is provided on the connection line between the wet ash discharge device 13 and the precipitator hopper 12.

In an alternative embodiment, a second discharge switch is provided on the connection line between the dry ash discharge device 14 and the ash hopper 12 of the dust separator.

In an alternative embodiment, the precipitator ash hopper 12 is sized to store an ash volume of no less than 24 hours.

In an alternative embodiment, the ash silo and the dust remover are jointly designed into an ash removing system which is arranged on a running layer.

In an alternative embodiment, an ash conveying road, a loading control room and a flue gas inlet are arranged on the operation layer.

In the embodiment of the utility model, the fly ash warehouse and the dust remover are designed in a combined way, a fly ash pneumatic conveying system (comprising a fly ash conveyer 20, an ash pipe 21, a first air storage tank 22, an air dryer, a second air storage tank 24, an air pipe network 25, a valve 26 and a screw type air compressor 27 shown in figure 5) in the prior art is eliminated, the fly ash warehouse is not arranged independently, the initial investment is saved, the operation energy consumption is reduced, and the maintenance cost is reduced.

In the embodiment of the utility model, the storage time of the fly ash can be increased from 8 hours to 24-48 hours by enlarging the volume of the ash hopper 12 of the dust remover, wet ash discharging equipment, dry ash discharging equipment and the like can be directly arranged below the ash hopper of the dust remover to realize loading and outward transportation, and the operation layer is reformed based on the equipment, so that the operation energy consumption, the maintenance cost and the like can be reduced.

Other embodiments than the above examples may be devised by those skilled in the art based on the foregoing disclosure, or by adapting and using knowledge or techniques of the relevant art, and features of various embodiments may be interchanged or substituted and such modifications and variations that may be made by those skilled in the art without departing from the spirit and scope of the present invention are intended to be within the scope of the following claims.

Claims

1. The ash removal system designed by combining the ash storehouse with the dust remover is characterized by comprising a dust remover (11), a dust hopper (12) of the dust remover, wet ash discharging equipment (13), dry ash discharging equipment (14) and a dust suppression system (17); the dust remover ash bucket (12) is connected with the dust remover (11), wet ash discharging equipment (13) and dry ash discharging equipment (14) are arranged below the dust remover ash bucket (12), and the wet ash discharging equipment (13) and the dry ash discharging equipment (14) are both connected with the dust remover ash bucket (12); the wet ash unloading equipment (13) and the dry ash unloading equipment (14) are arranged in the closed enclosing wall (16), the wet ash unloading equipment (13) and the dry ash unloading equipment (14) are used for transporting an ash slag car (15) outwards to unload materials, and the dust suppression system (17) is arranged in the closed enclosing wall (16).

2. The ash removing system designed by combining the ash silo and the dust remover as recited in claim 1, characterized in that a first discharging switch is arranged on a connecting pipeline of the wet ash discharging device (13) and the ash hopper (12) of the dust remover.

3. The ash removing system designed by combining the ash silo and the dust remover as recited in claim 1, characterized in that a second discharge switch is arranged on a connecting pipeline of the dry ash discharging device (14) and the ash hopper (12) of the dust remover.

4. The ash silo and the dust remover system designed in combination according to claim 1, wherein the size of the dust remover ash bucket (12) is not less than 24 hours of ash storage volume.

5. The ash removal system designed according to the combination of the ash silo and the dust remover as claimed in claim 1, wherein the ash removal system designed according to the combination of the ash silo and the dust remover is installed on a running layer.

6. The ash removing system designed by combining the ash storehouse and the dust remover as claimed in claim 5, wherein an ash conveying road, a loading control room and a flue gas inlet are arranged on the running layer.