CN1124436C - Slags cooler with dual functions of cooling and separating fine ash - Google Patents
Slags cooler with dual functions of cooling and separating fine ash Download PDFInfo
- Publication number
- CN1124436C CN1124436C CN 00119175 CN00119175A CN1124436C CN 1124436 C CN1124436 C CN 1124436C CN 00119175 CN00119175 CN 00119175 CN 00119175 A CN00119175 A CN 00119175A CN 1124436 C CN1124436 C CN 1124436C
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- Prior art keywords
- slag
- cooling
- fine ash
- separator
- joins
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- Gasification And Melting Of Waste (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The present invention discloses a slag cooler with the double functions of cooling and fine ash separation. The present invention is provided with a slag inlet pipe connected with a furnace high temperature slag discharge port, and the slag inlet pipe is orderly connected with a slag controller and an anti-clogging expander, wherein the upper end of the anti-clogging expander is orderly connected with a pneumatic conveying pipe and a separator. The lower end of the separator is provided with a fine sand returning pipe, and the lower end of the anti-clogging expander is orderly connected with a fine ash separating pipe and a fluidized bed cooling separator. The bottom part of the cooling separator is provided with a coarse slag discharge pipe, a fine ash collecting barn is arranged at the side surface of the cooling separator, and the lower part of the cooling separator is orderly connected with a speed measuring device, a wind door actuating mechanism and a blower. The present invention has the advantages of high efficiency of the fine ash separation and good effect of cooing the ash slag.
Description
The present invention relates to burner, relate in particular to and have cooling and fine ash selects the slag cooler of dual-use function.
Along with progress of science and technology, the raising of people's living standard, the protection of the environment that the mankind are depended on for existence is subject to people's attention day by day.Current, domestic waste has become big public hazards of society, thereby makes its minimizing, technical research innoxious, recycling treatment become global heat subject, and the waste incineration and generating electricity technology is developed rapidly.The circulating fluid bed garbage generation technology has been set up demonstration project at present, and radiation is promoted throughout the country.This technology adopts different weight fluidized-bed combustion technology, with particle diameter is the quartz sand work bed material of 0～3mm, because go into to contain in the stove rubbish complicated building waste such as wire, rod, bucket, jar, glass fragment, stone, boiler is when deslagging, when discharging these building wastes, have a large amount of quartzy casting bed material and discharge out of the furnace thereupon.Therefore, for reducing the loss of bed material, guarantee the stability and the economy of boiler operatiopn, require the slag cooler of boiler institute adapted that lime-ash cooling effect preferably not only will be arranged, also must have quartzy casting bed material below the 3mm is carried out effective sorting and returns function in the stove automatically, and more even more important than the cooling of slag.
Existing slag cooler such as water-cooled cagem type, segmentation are directly air-cooled, surface bed fluidization formula, oscillatory type, Pneumatic conveying type, fluidisation move folded formula etc., the heat of cooling of only considering lime-ash reclaims, and can not satisfy the needed slag cooler of the different fluidized-bed combustion boiler that recirculates of combustion refuse.
The purpose of this invention is to provide a kind of fine ash and select the efficient height, the lime-ash good cooling results have cooling and fine ash selects the slag cooler of dual-use function.
The present invention takes following measures in order to achieve the above object:
Having cooling and fine ash selects the slag cooler of dual-use function to have the slag feed pipe that joins with boiler high temperature ash slag outlet, slag feed pipe successively with slag controller, anti-blocking flash vessel joins, be provided with dreg control valve in the slag controller and by actuating mechanism controls, anti-blocking flash vessel upper end successively with pneumatic carrier, separator joins, separator lower end is provided with fine sand loopback pipe, manage with the fine ash choosing successively anti-blocking flash vessel lower end, the fluid bed cooling separator joins, fluid bed cooling separator bottom is provided with thick slag discharge pipe, the side is provided with fine ash storehouse, fluid bed cooling separator bottom successively with wing speed measuring device, air door executing agency, air blast joins, and the separator hot-blast outlet joins with boiler secondary air pipe or back-end ductwork.
Advantage of the present invention: 1) slag controller is regulated the boiler slag removal amount easily; 2) flash vessel is set after, lime-ash be difficult for to stop up; 3) fine ash selects the efficient height, thereby significantly reduces the fresh sand magnitude of recruitment, reduces production costs; 4) lime-ash good cooling results can effectively alleviate slag tap labour intensity and thermal pollution; 5) relatively simple for structure, stable and reliable operation.
Below in conjunction with accompanying drawing the present invention is elaborated:
Accompanying drawing is a structural representation of the present invention.
Having cooling and fine ash selects the slag cooler of dual-use function to have the slag feed pipe 10 that joins with boiler high temperature ash slag outlet, slag feed pipe successively with slag controller 9, anti-blocking flash vessel 7 joins, be provided with dreg control valve 6 in the slag controller and by executing agency 11 control, anti-blocking flash vessel upper end successively with pneumatic carrier 8, separator 12 joins, separator lower end is provided with fine sand loopback pipe 13, anti-blocking flash vessel lower end manages 5 with the fine ash choosing successively, fluid bed cooling separator 4 joins, fluid bed cooling separator bottom is provided with thick slag discharge pipe 14, the side is provided with fine ash storehouse 15, fluid bed cooling separator bottom successively with wing speed measuring device 3, air door executing agency 2, air blast 1 joins, and the separator hot-blast outlet joins with boiler secondary air pipe or back-end ductwork.
Expansion joint is arranged in the middle of the slag feed pipe.The fluid bed cooling separator has between the fine ash storehouse and is separated by with the heatproof screen cloth.Be provided with the high temperature resistant dreg control valve 6 of awl hat type in the slag controller, its tapering is 60 °, and drives with electric operator.It is 500～2000mm that fine ash selects length of tube, wind speed by 1～2 times of floating velocity of conveying particle, be generally 8～18m/s.Cross section wind speed in the fluid bed cooling separator is 1.2～3m/s.Sieve screen apertures in the fluid bed cooling separator is of a size of 3～8mm square hole.
During work, the high-temperature ash that boiler is discharged enters slag feed pipe 10, fall into flash vessel 7 through slag controller 9, and continue to fall to the fine ash choosing and manage 5, with from air blast 1, air door regulating mechanism 2, speed measuring device 3, the air of fluid bed cooling separator 4 is counter-current flow, particle diameter is carried rising with the certain speed airflow flowing that makes progress less than the quartz sand of 5mm and thin ash in the pipe in the lime-ash, through flash vessel 7, enter separator 12 behind the thin grey carrier pipe 8, fine grained is effectively separated in separator and is fallen into ash bucket, automatically return in the stove through the loopback pipe, finish fine sand (ash) sorting loopback, reduce the loss of bed material.The hot blast that goes out separator is made boiler secondary air recovery heat, also can directly enter boiler back end ductwork.Carry out direct heat exchange from dividing selections 5 to fall into the fluid bed cooling separator with air from air blast greater than the thick slag of 5mm, discharge from bottom scum pipe 14 the slag back that is cooled.For making thin ash not separated in minute selections 5 further obtain separating, in fluid bed cooling separator 4, be provided with between the fine ash storehouse and be separated by with square-mesh screen, during fluidisation, the parts of fine ash enters fine ash storehouse by screen cloth to lime-ash in the fluid bed cooling separator, and regularly discharging is reclaimed.
Claims (5)
1. one kind has cooling and fine ash selects the slag cooler of dual-use function, it is characterized in that it has the slag feed pipe [10] that joins with boiler high temperature ash slag outlet, slag feed pipe successively with slag controller [9], anti-blocking flash vessel [7] joins, be provided with dreg control valve [6] in the slag controller and control by executing agency [11], anti-blocking flash vessel upper end successively with pneumatic carrier [8], separator [12] joins, separator lower end is provided with fine sand loopback pipe [13], [5] are managed with the fine ash choosing successively in anti-blocking flash vessel lower end, fluid bed cooling separator [4] joins, fluid bed cooling separator bottom is provided with thick slag discharge pipe [14], the side is provided with fine ash storehouse [15], fluid bed cooling separator bottom successively with wing speed measuring device [3], air door executing agency [2], air blast [1] joins, and the separator hot-blast outlet joins with boiler secondary air pipe or back-end ductwork.
2. according to claim 1 a kind ofly have cooling and fine ash selects the slag cooler of dual-use function, it is characterized in that being provided with in the said slag controller boring the high temperature resistant dreg control valve of hat type [6], and its tapering is 60 °, and drives with electric operator.
3. according to claim 1 a kind ofly have cooling and fine ash selects the slag cooler of dual-use function, it is characterized in that the length that [5] are managed in said fine ash choosing is 500～2000mm.
4. according to claim 1 a kind ofly have cooling and fine ash selects the slag cooler of dual-use function, it is characterized in that the cross section air velocity that said fine ash choosing is managed in [5] is 8～18m/s.
5. according to claim 1 a kind ofly have cooling and fine ash selects the slag cooler of dual-use function, it is characterized in that the sieve screen apertures aperture in the said fluid bed cooling separator is 3～10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00119175 CN1124436C (en) | 2000-07-04 | 2000-07-04 | Slags cooler with dual functions of cooling and separating fine ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00119175 CN1124436C (en) | 2000-07-04 | 2000-07-04 | Slags cooler with dual functions of cooling and separating fine ash |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1331398A CN1331398A (en) | 2002-01-16 |
| CN1124436C true CN1124436C (en) | 2003-10-15 |
Family
ID=4587543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00119175 Expired - Fee Related CN1124436C (en) | 2000-07-04 | 2000-07-04 | Slags cooler with dual functions of cooling and separating fine ash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1124436C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128449A (en) * | 2011-04-20 | 2011-07-20 | 重庆大学 | Double spouted bed slag cooler and air return system matched with same |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878569B (en) * | 2012-09-19 | 2015-01-21 | 浙江大学 | High-temperature air combustion intensifying device and method applicable to low heating value mixed garbage |
| CN104949116B (en) * | 2015-07-02 | 2017-09-15 | 中国神华能源股份有限公司 | Fall slag device and CFBB |
| CN109899781A (en) * | 2019-01-12 | 2019-06-18 | 湖州加怡新市热电有限公司 | A kind of flying dust back fire device |
-
2000
- 2000-07-04 CN CN 00119175 patent/CN1124436C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128449A (en) * | 2011-04-20 | 2011-07-20 | 重庆大学 | Double spouted bed slag cooler and air return system matched with same |
| CN102128449B (en) * | 2011-04-20 | 2012-11-28 | 重庆大学 | Double spouted bed slag cooler and air return system matched with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1331398A (en) | 2002-01-16 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: 119175.6 of the invention patents in this issue as a notice of authorization, and at the same time corresponding to the 00242035.X utility model patent to be given up, and in the 19 volume of the 42 issue of the new type of communique on the patent right to abandon the announcement. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |