CN201636888U

CN201636888U - Automatic coal saving device of boiler

Info

Publication number: CN201636888U
Application number: CN2010200623014U
Authority: CN
Inventors: 杨青海
Original assignee: GANSU BICHENG TECHNOLOGY Co Ltd
Current assignee: GANSU BICHENG TECHNOLOGY Co Ltd
Priority date: 2010-01-01
Filing date: 2010-01-01
Publication date: 2010-11-17
Anticipated expiration: 2020-01-01

Abstract

The utility model relates to an automatic coal saving device of a boiler. The automatic coal saving device comprises a main coal bunker, a coal bunker gate, a coal feeding pneumatic gate valve, flexible connectors, a weighing hopper, a coal discharging pneumatic gate valve, a coal distribution pipeline, a coal storage bunker, an upper level gage and a lower level gage, wherein the lower part of the main coal bunker is connected with the coal bunker gate; the lower end of the coal bunker gate is connected with the coal feeding pneumatic gate valve; the coal feeding pneumatic gate valve is connected with the upper part of the weighing hopper by the flexible connectors; the lower part of the weighing hopper is connected with the coal discharging pneumatic gate valve and is communicated with the coal distribution pipeline by the flexible pipeline, meanwhile, the coal distribution pipeline is communicated with the coal storage bunker; the weighing hopper is arranged on the coal storage bunker; and the input end and the output end of a control cabinet are respectively connected with the coal feeding pneumatic gate valve, the coal discharging pneumatic gate valve, the weighing hopper, the level gages, an industrial personal computer and the input end and the output end of a printer. The automatic coal saving device can automatically record the weight of the coal added every time and can weigh and monitor the coal powder delivered to the boiler at real time, and the user can comprehensively and accurately know the coal burning dynamic of the boiler.

Description

The automatic coal-saving device of boiler

Technical field

The utility model relates to the steam generator system field, relates in particular to a kind of automatic coal-saving device of boiler that utilizes metering control to reach to be sparing in the use of coal the energy.

Background technology

At present, the coal supply mode in the existing steam generator system is to adopt transport tape that coal is transported in total coal bunker, directly delivers to the coal hopper of boiler by slideway, is put in the middle of the fire grate by the coal roller again; Transferring of coal is by self gravitation in its course of conveying, and the coal meter amount is to utilize the belted electronic balance that is installed on the conveyer belt to finish, and belted electronic balance belongs to dynamic measuring, owing to be subjected to conveyance conduit negative pressure and temperature effect, easily cause belt deviation, measuring accuracy is not high, exists error ratio bigger.The direct weighing data of using electronic vehicle weighing apparatus is also arranged as foundation, still, use truck scale can not the coal that enter boiler in real time be measured, also be unfavorable for cost analysis and control.

Also be not specifically designed to control and carry the equipment of coal in steam generator system, normally only rely on by means of staff's practical work experience and operate, the conveying capacity of coal can not accurately be controlled, in case when the conveying capacity of coal is too much, just be unfavorable for the abundant burning of coal; The coal that does not have completing combustion can be discharged boiler as waste residue, causes the wasting of resources, and has increased cost; When the conveying capacity of coal was very few, the operating efficiency of boiler again can be very low, and the most existing old boiler all adopts manual operation, and automaticity is not high, is difficult to continuous operation, has directly influenced the job schedule and the economic benefit of boiler.

Summary of the invention

The purpose of this utility model is the deficiency that exists at prior art, can write down the weight of each coal automatically and the coal dust that is transported to boiler is carried out measure control and provide a kind of, obtain the automatic coal-saving device of boiler of coal powder consumption state in certain time period through design improvement.This device has measure control precision height, and maintenance is little, can monitor the characteristics that environment protecting is good in real time automatically.

For realizing described purpose, the technical solution adopted in the utility model is: the automatic coal-saving device of a kind of boiler comprises carries coal working cell and automatic gauge control working cell; Described conveying coal working cell comprises total coal bunker (1), coal bunker gate (2), advances the moving lock gate hatch (3) of coal gas, be flexible coupling (4), weighing hopper (5), the pneumatic lock gate hatch (6) of unloading coal, be flexible coupling (7), coal-separating pipe road (8), coal store (9), last level-sensing device (10), following level-sensing device (11); It is characterized in that: the bottom of total coal bunker (1) is connected with coal bunker gate (2), the lower end of coal bunker gate (2) with advance the moving lock gate hatch (3) of coal gas and be connected, advancing the moving lock gate hatch (3) of coal gas is connected with the top of weighing hopper (5) by be flexible coupling (4), the bottom of weighing hopper (5) connects the pneumatic lock gate hatch (6) of unloading coal, and be communicated with coal-separating pipe road (8) by be flexible coupling (7), be communicated with coal store (9) through coal-separating pipe road (8) simultaneously.

Described automatic gauge control working cell comprises switch board, industrial computer and external equipment; The input/output terminal of switch board moves lock gate hatch (3) with advancing coal gas respectively by holding wire, the pneumatic lock gate hatch (6) of unloading coal, and weighing hopper (5), the input/output terminal of level-sensing device (10), (11) and industrial computer thereof and printer is connected.

Described weighing hopper (5) is provided with LOAD CELLS.

Described coal store (9) is provided with level-sensing device (10) and following level-sensing device (11).

During work, click system's start button, system brings into operation, if system detect metering be zero or the residual volume scope of setting in, then judging does not have coal in the measuring chute, the coal feeder automatic coal feeding stops up to set amount; The coal position that detects in the coal store when system is in the material level timing, then suspend and unload coal, and prompt system is in and waits in the state of unloading coal, and when the coal position is in material level timing down, then unloads coal automatically, runs so forth.Can make things convenient for the user can grasp the dynamic of boiler fired coal all-sidedly and accurately, reach management effectively and use boiler, save purpose with the coal energy.

The beneficial effects of the utility model are:

1, this device adopts the static weighing weighing hopper, can accurately control the transmission quantity of coal, reflects coal-fired real work situation in real time;

2, this device adopts level-sensing device can effectively control the into speed of coal, can carry quantitative coal dust by actual needs, has prevented the generation of the long-pending coal situation of coal piling, has avoided coal-fired waste;

3, this device adopts industrial computer to monitor automatically, makes measure control precision height, and maintenance is little, and environmental protection effect is good.

Description of drawings

Fig. 1 is a structure connection diagram of the present utility model

Fig. 2 is the connection diagram of control device of the present utility model

Fig. 3 is switch board external form demonstration figure of the present utility model

Among the figure, the total coal bunker of 1-, 2-coal bunker gate, 3-advance that the moving lock gate hatch of coal gas, 4-are flexible coupling, 5-weighing hopper, 6-are unloaded coal pneumatic lock gate hatch, 7-is flexible coupling, level-sensing device under the 8-coal-separating pipe road, 9-coal store, the last level-sensing device of 10-, 11-;

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described

With reference to Fig. 1, the automatic coal-saving device of a kind of boiler comprises and carries coal working cell and automatic gauge control working cell; Described conveying coal working cell by total coal bunker 1, coal bunker gate 2, advance the moving lock gate hatch 3 of coal gas, be flexible coupling 4, weighing hopper 5, the pneumatic lock gate hatch 6 of unloading coal, be flexible coupling 7, coal-separating pipe road 8, coal store 9, go up level-sensing device 10, level-sensing device 11 constitutes down; The bottom of its total coal bunker 1 is connected with coal bunker gate 2, the lower end of coal bunker gate 2 with advance the moving lock gate hatch 3 of coal gas and be connected, advancing the moving lock gate hatch 3 of coal gas 4 is connected with the top of weighing hopper 5 by being flexible coupling, weighing hopper 5 is provided with LOAD CELLS, the bottom of weighing hopper 5 connects the pneumatic lock gate hatch 6 of unloading coal, and 7 be communicated with coal-separating pipe road 8 by being flexible coupling, being communicated with coal store 9 through coal-separating pipe road 8 simultaneously, coal store 9 is provided with level-sensing device 10 and following level-sensing device 11.Advancing the moving lock gate hatch of coal gas and also can adopt screw(-type) feeder to advance coal wherein.

With reference to Fig. 2, described automatic gauge control working cell comprises switch board, industrial computer and external equipment; The input/output terminal of switch board moves lock gate hatch 3 with advancing coal gas respectively by holding wire, the pneumatic lock gate hatch 6 of unloading coal, and weighing hopper 5, level-sensing device 10,11, and the input/output port of industrial computer and printer is connected.

When control appliance is worked, the parameter of each coal weight is set at first on computers, parameter information is sent to weighing instrument; Need not to revise as parameter, be provided with and once just can use always.Click control start button (industrial computer end or switch board end can), system starts working, advance the moving lock gate hatch 3 (being equal to feeder) of coal gas and start, coal dust enters weighing hopper, by weighing instrument the coal dust in the weighing hopper is carried out Weighing, and send weight information to computer, after the coal dust weight in the weighing hopper reached setting weight, batcher quit work, simultaneously, final weight information is sent to computer, weight information is stored by computer.Before system sends discharging signal, detect the situation of material level machine down earlier, be empty if any a material level this moment, and the pneumatic lock gate hatch 6 (being equal to unloader) of unloading coal is just started working, coal dust draws off from weighing hopper, enter the coal-separating pipe road, fall into storage bin, when the coal dust height reaches material level, pneumatic lock gate hatch 6 break-ofves of unloading coal, when treating that coal dust is lower than material level once more, start the pneumatic lock gate hatch 6 of unloading coal once more, all unsnatch up to coal dust; After hopper was unstowed, control system started the into moving lock gate hatch 3 of coal gas once more, carries out coal powder metering work next time.

With reference to Fig. 3, the panel of switch board is provided with the weighing instrument window, power supply, startup, feeds in raw material, stops, discharging, goes up material level, the Show Button of material level down.

The utility model is by carrying out measure control to the coal dust that is transported to boiler; automatically the each weight data of coal of carrying of record adds up; can add up as required; can obtain the consumption situation of boiler coal-ash in certain time period; make the user can grasp the dynamic of boiler fired coal all-sidedly and accurately; reach management effectively and use boiler, realized the boiler saving coal energy, the purpose of protection environment.

Claims

1. the automatic coal-saving device of boiler comprises and carries coal working cell and automatic gauge control working cell; Described conveying coal working cell comprises total coal bunker (1), coal bunker gate (2), advances the moving lock gate hatch (3) of coal gas, be flexible coupling (4), weighing hopper (5), the pneumatic lock gate hatch (6) of unloading coal, be flexible coupling (7), coal-separating pipe road (8), coal store (9), last level-sensing device (10), following level-sensing device (11); It is characterized in that: the bottom of total coal bunker (1) is connected with coal bunker gate (2), the lower end of coal bunker gate (2) with advance the moving lock gate hatch (3) of coal gas and be connected, advancing the moving lock gate hatch (3) of coal gas is connected with the top of weighing hopper (5) by be flexible coupling (4), the bottom of weighing hopper (5) connects the pneumatic lock gate hatch (6) of unloading coal, and be communicated with coal-separating pipe road (8) by be flexible coupling (7), be communicated with coal store (9) through coal-separating pipe road (8) simultaneously.

2. the automatic coal-saving device of boiler according to claim 1 is characterized in that described automatic gauge control working cell comprises switch board, industrial computer and external equipment; The input/output terminal of switch board moves lock gate hatch (3) with advancing coal gas respectively by holding wire, the pneumatic lock gate hatch (6) of unloading coal, and weighing hopper (5), level-sensing device (10), (11), and the input/output terminal of industrial computer and printer is connected.

3. the automatic coal-saving device of boiler according to claim 1 is characterized in that described weighing hopper (5) is provided with LOAD CELLS.

4. the automatic coal-saving device of boiler according to claim 1 is characterized in that described coal store (9) is provided with level-sensing device (10) and following level-sensing device (11).