CN201547759U - Conveying device for afterburning of fly ash of boiler - Google Patents
Conveying device for afterburning of fly ash of boiler Download PDFInfo
- Publication number
- CN201547759U CN201547759U CN2009202593487U CN200920259348U CN201547759U CN 201547759 U CN201547759 U CN 201547759U CN 2009202593487 U CN2009202593487 U CN 2009202593487U CN 200920259348 U CN200920259348 U CN 200920259348U CN 201547759 U CN201547759 U CN 201547759U
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- boiler
- fly ash
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- conveying device
- pull valve
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Abstract
A conveying device for afterburning of fly ash of a boiler comprises a manual gate valve, a pneumatic gate valve, an electric feeding machine, a screw pump, a blower and a conveying pipeline, wherein, the feed end of the manual gate valve is connected with a feeding bin, and the discharge end thereof is connected with the feed end of the electric feeding machine after penetrating the pneumatic gate valve; the discharge end of the electric feeding machine is connected with the feed opening of the screw pump; the discharge opening of the screw pump is connected with the bottom of a boiler through the conveying pipeline; and the blower is connected with the air inlet of the electric feeding machine through a pipeline. The device provided by the utility model has the advantages of simple and compact structure, low cost, and good air locking performance, ensures that the conveying process is stable and continuous, realizes the afterburning of the fly ash of the boiler, and improves the heating efficiency of the boiler.
Description
Technical field
The utility model is mainly concerned with the pulverized coal friring apparatus field, refers in particular to a kind of device of carrying flyash.
Background technology
Present domestic coal-fired power station boiler, coal dust still has some unburned pulverized coal particles after burning in burner hearth, if with its direct discharging, not only pollute the environment nor economy, and through after repeating burning (also can repeatedly circulate), its combustible component will reduce greatly, can further improve economic benefit.
Boiler boiler fly ash resume combustion conveying device, the flying dust that mainly is a electric field that phosphorus content is the highest partly or entirely are delivered to second-time burning in the burner hearth concentrated phase area of the boiler left and right sides according to the boiler combustion operating mode.Flyash resume combustion technology can reduce the phosphorus content of boiler fly ash, improves boiler thermal output, and boiler output is increased.Owing to certain pressure is arranged in the burner hearth, the ash conveying device that existing part power plant adopts, air locking can be bad, causes conveying capacity not meet the demands and often cause plugging.Above the transport conveyor constructions of existing other form is roughly is rotary pocket feeder, is blender below, a supporting jet nozzle.In case the conveying of this form does not force to lock the pressure of function pipeline the inside of gas greater than the deadweight of ash, the air in the pipeline will upwards be gone here and there, and causes material to hold off, and finally causes conveying capacity too small, and this situation is particularly outstanding after the dispenser wearing and tearing.
The utility model content
The technical problems to be solved in the utility model just is: at the technical problem that prior art exists, the utility model provide a kind of simple and compact for structure, with low cost, air locking can be good, can guarantee the course of conveying steady and continuous, realize the boiler fly ash resume combustion, improve the boiler fly ash resume combustion conveying device of boiler thermal output.
For solving the problems of the technologies described above, the utility model by the following technical solutions.
A kind of boiler fly ash resume combustion conveying device, it is characterized in that: comprise manual push-pull valve, pneumatic push-pull valve, electronic batcher, helicoidal pump, air blast and conveyance conduit, the feed end of described manual push-pull valve links to each other with feeding warehouse, the discharge end of described manual push-pull valve links to each other with the feed end of electronic batcher behind pneumatic push-pull valve, the discharge end of described electronic batcher links to each other with the charging aperture of helicoidal pump, the discharging opening of described helicoidal pump links to each other with boiler bottom by conveyance conduit, and described air blast links to each other with the air inlet of electronic batcher by pipeline.
As further improvement of the utility model:
Described air blast adopts Roots blower.
Described electronic batcher is the electronic batcher of band frequency converter.
Described conveyance conduit links to each other with the concentrated phase area of boiler bottom.
Compared with prior art, advantage of the present utility model just is: boiler fly ash resume combustion conveying device of the present utility model, adopt the direct connection kind of drive, belong to and adopt the design of forcing lock gas dispenser, its project organization is three grades of depressed structures of lock: one-level is a varying pitch mechanical lock gas, secondary is adjustable stock column lock gas, and three grades is board-like non-return lock gas; The application sprayers principle makes helicoidal pump discharge end work climate be relative negative pressure state substantially, efficiently solves pipeline system pressure and changes the influence that discharging brings to helicoidal pump; Whole wearing piece adopts carbide alloy to make, and has effectively reduced the wearing and tearing of equipment, has prolonged the service life of equipment.Upwards string, the material situation of being unable to come down of gas of having determined that device of the present utility model is fully dissatisfied has realized that lock gas, blanking carry out synchronously.After flyash resume combustion technology, do not change the characteristic of ash, be convenient to comprehensive utilization and save great amount of water resources.Compared with the past, this mode conveying device has high social and economic benefit.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Marginal data
1, manual push-pull valve; 2, pneumatic push-pull valve; 3, electronic batcher; 4, helicoidal pump; 5, air blast; 6, conveyance conduit; 7, boiler; 8, feeding warehouse.
The specific embodiment
Below with reference to specific embodiment and Figure of description the utility model is described in further details.
As depicted in figs. 1 and 2, boiler fly ash resume combustion conveying device of the present utility model, comprise manual push-pull valve 1, pneumatic push-pull valve 2, electronic batcher 3, helicoidal pump 4, air blast 5 and conveyance conduit 6, manually the feed end of push-pull valve 1 links to each other with feeding warehouse 8, manually the discharge end of push-pull valve 1 links to each other with the feed end of electronic batcher 3 behind pneumatic push-pull valve 2, the discharge end of electronic batcher 3 links to each other with the charging aperture of helicoidal pump 4, the discharging opening of helicoidal pump 4 links to each other with boiler 7 bottoms by conveyance conduit 6, and air blast 5 links to each other by the air inlet of pipeline with electronic batcher 3.In the present embodiment, air blast 5 adopts Roots blower, and Roots blower provides power gas source, is transported to the burner hearth of boiler 7 by conveyance conduit 6.The conveying equipment wearing and tearing are little, and defeated grey amount can electrodelessly be regulated, and whole transportation process is continuous, stable, even, thereby realize the flyash resume combustion.Electronic batcher 3 is the electronic batcher of band frequency converter, and conveyance conduit 6 links to each other with the concentrated phase area of boiler 7 bottoms.This device is to adopt the direct connection kind of drive, belongs to the design of adopting pressure lock gas dispenser, and its project organization is three grades of depressed structures of lock: one-level is a varying pitch mechanical lock gas, and secondary is adjustable stock column lock gas, and three grades is board-like non-return lock gas; The application sprayers principle makes helicoidal pump 4 discharge end work climates be relative negative pressure state substantially, efficiently solves conveyance conduit 6 system pressures and changes the influence that 4 dischargings bring to helicoidal pump; Whole wearing piece adopts carbide alloy to make, and has effectively reduced the wearing and tearing of equipment, has prolonged the service life of equipment.Upwards string, the material situation of being unable to come down of gas of having determined that device of the present utility model is fully dissatisfied has realized that lock gas, blanking carry out synchronously.After flyash resume combustion technology, do not change the characteristic of ash, be convenient to comprehensive utilization and save great amount of water resources.Compared with the past, this mode conveying device has high social and economic benefit.
The above only is a preferred implementation of the present utility model, and protection domain of the present utility model also not only is confined to the foregoing description, and all technical schemes that belongs under the utility model thinking all belong to protection domain of the present utility model.Should be pointed out that for those skilled in the art in the some improvements and modifications that do not break away under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. boiler fly ash resume combustion conveying device, it is characterized in that: comprise manual push-pull valve (1), pneumatic push-pull valve (2), electronic batcher (3), helicoidal pump (4), air blast (5) and conveyance conduit (6), the feed end of described manual push-pull valve (1) links to each other with feeding warehouse (8), the discharge end of described manual push-pull valve (1) links to each other with the feed end of electronic batcher (3) behind pneumatic push-pull valve (2), the discharge end of described electronic batcher (3) links to each other with the charging aperture of helicoidal pump (4), the discharging opening of described helicoidal pump (4) links to each other with boiler (7) bottom by conveyance conduit (6), and described air blast (5) links to each other by the air inlet of pipeline with electronic batcher (3).
2. boiler fly ash resume combustion conveying device according to claim 1 is characterized in that: described air blast (5) adopts Roots blower.
3. boiler fly ash resume combustion conveying device according to claim 1 and 2 is characterized in that: described electronic batcher (3) is the electronic batcher of band frequency converter.
4. boiler fly ash resume combustion conveying device according to claim 1 and 2 is characterized in that: described conveyance conduit (6) links to each other with the concentrated phase area of boiler (7) bottom.
5. boiler fly ash resume combustion conveying device according to claim 3 is characterized in that: described conveyance conduit (6) links to each other with the concentrated phase area of boiler (7) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202593487U CN201547759U (en) | 2009-11-24 | 2009-11-24 | Conveying device for afterburning of fly ash of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202593487U CN201547759U (en) | 2009-11-24 | 2009-11-24 | Conveying device for afterburning of fly ash of boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201547759U true CN201547759U (en) | 2010-08-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202593487U Expired - Fee Related CN201547759U (en) | 2009-11-24 | 2009-11-24 | Conveying device for afterburning of fly ash of boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201547759U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249090A (en) * | 2011-04-29 | 2011-11-23 | 智胜化工股份有限公司 | High-temperature fine ash energy-saving environment-friendly conveying device for three waste (waste gas, waste water and waste residues) fluidization mixed combustion furnace |
| CN104525347A (en) * | 2014-11-26 | 2015-04-22 | 广西鱼峰水泥股份有限公司 | Method for reducing number of times of material dropping failure of fly ash warehouse |
-
2009
- 2009-11-24 CN CN2009202593487U patent/CN201547759U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249090A (en) * | 2011-04-29 | 2011-11-23 | 智胜化工股份有限公司 | High-temperature fine ash energy-saving environment-friendly conveying device for three waste (waste gas, waste water and waste residues) fluidization mixed combustion furnace |
| CN104525347A (en) * | 2014-11-26 | 2015-04-22 | 广西鱼峰水泥股份有限公司 | Method for reducing number of times of material dropping failure of fly ash warehouse |
| CN104525347B (en) * | 2014-11-26 | 2017-12-19 | 广西鱼峰水泥股份有限公司 | A kind of method for reducing the flyash storehouse blanking number of stoppages |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20131124 |