CN2872107Y - Oriented air-blowing slag cooler of step bed of water-cooling wall - Google Patents
Oriented air-blowing slag cooler of step bed of water-cooling wall Download PDFInfo
- Publication number
- CN2872107Y CN2872107Y CN 200620031228 CN200620031228U CN2872107Y CN 2872107 Y CN2872107 Y CN 2872107Y CN 200620031228 CN200620031228 CN 200620031228 CN 200620031228 U CN200620031228 U CN 200620031228U CN 2872107 Y CN2872107 Y CN 2872107Y
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- sinter
- slag
- wind
- cooling chamber
- inlet
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Abstract
The utility model discloses a water cooling wall stepping machine oriented wind blowing sinter cooler, comprising a sinter cooling chamber provided with a sinter inlet, a sinter outlet, and a wind return port, a wind cup arranged inside the sinter cooling chamber, a wind supplying chamber communicated with the wind cup inlet. The sinter cooling chamber bottom wall is a step structure lowered gradually from the sinter inlet to the outlet. The wind cup is arranged on the step structure bottom wall from the sinter inlet to the sinter outlet. The wind cup outlet is opened towards the sinter outlet. A plurality of wind guiding plates in spacing are arranged inside the sinter cooling chamber and hang in the air from top to bottom and from the sinter inlet to the sinter outlet. The wind guiding plates divide the sinter cooling chamber into a plurality of chambers communicated upwards and downwards. The utility model has the advantages of big volume sinter exhaust, no sinter leakage of the wind cup and good wear resistance, and good cooling effect. The sinter exhaust temperature can be lowered to below 100 Celsius system and can reclaim the heating. The wind flowing cooling acts as a major process and the water-cooling as an auxiliary process, so the water consumption is small and the undesirable influence on the steamer generator efficiency is nearly negligible. Without the mechanical transmission, the utility model can have longer service life and easy operation.
Description
Technical field
The utility model relates to CFBB, especially relates to the directed wind slag cooler of water-cooled wall ladder bed.
Background technology
Slag cooler is cooling and dredges the device that self-loopa fluidized-bed combustion boiler body is discharged end slag, is the vitals that guarantees the efficient operation of CFB boiler safety.Because stopping up freely will not appear in the slag cooler deslagging, the frequency that slag cooler stops up is high more, and boiler is forced to stop transport just frequent more, so the irregular working of slag cooler is to cause the CFB boiler to be forced to the one of the main reasons of blowing out and the operation of generating set load shedding.The existing deficiency of present employed fluid bed air-water combined slag cooler mainly shows as: 1, body of wall is the heat insulating construction that steel plate adds the thermal insulation fire-resistant material, do not absorb heat, water-cooled coil heating surface deficiency, cause the slag cooler return air temperature to be higher than 320 ℃ of design loads far away, all about 600 ℃, deslagging temperature often is higher than 150 ℃ when unusual.2, the slag input particle diameter requires harsh.The slag input granularity is big and measure and easily pile up when too much, is difficult to row to next chamber.3, high mid-board (around wall formula, jumping wall formula) easily makes the deslagging difficulty more than two meters.Even the air quantity of fluidisation blower fan is transferred to maximum, slag can not climb over air-cooled partition wall, is forced to interim mud hole deslagging.When 4, slag cooler moved, each chamber bed was pressed and can not set up, the bed emptying, and the state that have to be similar to the strength conveying is failed slag, deslagging, the fluidisation air quantity is strengthened, thereby make that the flowing velocity of slag charge is very fast, to the impact aggravation of blast cap, blast cap serious wear.5, the combustible that boiler discharges in the slag charge takes place easily and increase in production reality, easily cause second-time burning in a Room this moment, causes heat accumulation, and coking takes place, and then stop up slag cooler, finally makes the boiler can't deslagging, is forced to blowing out.Because the frequency that slag cooler stops up is very high, makes the continuous operating time of boiler very short.6, to the ature of coal bad adaptability, the frequency that slag cooler stops up when the quantity of slag of ature of coal variation boiler generation also increases greatly is also very high.
The utility model content
The directed wind slag cooler of water-cooled wall ladder bed that resistance was little, deslagging is smooth and easy, deslagging temperature is low when the utility model purpose was to provide a kind of slag directed flow.
For achieving the above object, the utility model can be taked following technical proposals:
The directed wind slag cooler of water-cooled wall ladder bed described in the utility model, it comprises the dreg cooling chamber that offers into and out of cinder notch, return air inlet, be arranged on the blast cap in the described dreg cooling chamber, plenum chamber with being connected with described blast cap air inlet is characterized in that: described dreg cooling chamber diapire from slag inlet to the ladder face structure of slag notch to reduce step by step; Blast cap is arranged to slag notch from slag inlet and is arranged on the diapire of ladder face structure, and the air outlet of blast cap is offered towards the slag notch direction; In dreg cooling chamber from slag inlet to slag notch at interval, the unsettled polylith wind deflector that is disposed with up and down, dreg cooling chamber is divided into a plurality of chambers of upper and lower intercommunication.
The dreg cooling chamber's diapire that is positioned at below the described slag notch is provided with second slag notch.
In the wall of described dreg cooling chamber sidewall, roof and wind deflector, be provided with cooling water pipe, being connected with hot water or cold water's header respectively of described cooling water pipe into and out of the mouth of pipe.
On the outer surface of described wind deflector, be coated with high heat conduction wearing-proof refractory material layer.
The air inlet that is positioned at blast cap on the same cascaded surface is connected with same plenum chamber.
Advantage of the present utility model is mainly reflected in following several respects:
1, dreg cooling chamber's diapire from slag inlet to the ladder face structure of slag notch to reduce step by step, thereby thereby the ladder wind avoided big slag to gather having avoided clogging; Make that big clinker directed flow and resistance are minimum, bed drain purge big (more than the 20t/h).The big bed drain purge operating mode that can adapt to steam coal qualitative change difference.
2, adopt band abrasionproof shroud ring seam backflow multi-port wind cap to make big clinker directed flow, blast cap does not leak slag and wearability is good, and the maintenance of abrasionproof cover is changed easily.
3, adopt the unsettled wind deflector of water-cooled it to be recovered in the burner hearth effectively.
4, adopt the water-cooled wall in conjunction with anterior wind rear portion fluidisation, the existing surface-type heat exchange that has realized water, wind and slag has mixing heat-exchange again, can overtemperature to the good cooling results of slag and each chamber temp, can in time cool off and avoid the coking and blocking phenomenon entering having for some reason of the front chamber more carbon granules that do not burn.Deslagging temperature can drop to below 100 ℃ and reach the heat recovery purpose.
5, the unsettled wind deflector of water-cooled wall, water-cooled adopts the high heat conduction wearing-proof refractory material of external application, makes not only abrasionproof but also have good heat conductivility.
6, air-cooled based on the wind fluidisation, water-cooled is auxilliary, so water consumption is little, and is little to the Turbo-generator Set effectiveness affects.
7, there is not mechanical rotation device, long service life, operating maintenance is convenient.
But 8 large scale developments and be not subjected to power plant's site space arrangement constraints.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
As shown in the figure, the directed wind slag cooler of water-cooled wall ladder bed described in the utility model, it comprises the dreg cooling chamber 4 that offers into and out of cinder notch 1,2, return air inlet 3, be arranged on the blast cap 5 in the described dreg cooling chamber 4, with the plenum chamber 6 that is connected with described blast cap 5 air inlets, the diapire 7 of described dreg cooling chamber 4 from slag inlet 1 to the ladder face structure of slag notch 2 to reduce step by step; Blast cap 5 is arranged to slag notch 2 from slag inlet 1 and is arranged on the diapire 7 of ladder face structure, and the air outlet 8 of blast cap 5 is offered towards slag notch 2 directions; In dreg cooling chamber 4 from slag inlet 1 to slag notch 2 at interval, the unsettled polylith wind deflector 9 that is disposed with up and down, dreg cooling chamber 4 is divided into a plurality of chambers of upper and lower intercommunication.The dreg cooling chamber's diapire 7 that is positioned at below the slag notch 2 is provided with second slag notch 10.In the wall of dreg cooling chamber's 4 sidewalls, roof and wind deflector 9, be provided with cooling water pipe 11, being connected with hot water or cold water's header 12,13 respectively of described cooling water pipe 11 into and out of the mouth of pipe.On the outer surface of wind deflector 9, be coated with high heat conduction wearing-proof refractory material layer.The air inlet that is positioned at the blast cap 5 on the same cascaded surface is connected with same plenum chamber 6.
Claims (5)
1, the directed wind slag cooler of a kind of water-cooled wall ladder bed, it comprises the dreg cooling chamber (4) that offers into and out of cinder notch (1,2), return air inlet (3), be arranged on the blast cap (5) in the described dreg cooling chamber (4), plenum chamber (6) with being connected with described blast cap (5) air inlet is characterized in that: the diapire (7) of described dreg cooling chamber (4) from slag inlet (1) to the ladder face structure of slag notch (2) to reduce step by step; Blast cap (5) is arranged to slag notch (2) from slag inlet (1) and is arranged on the diapire (7) of ladder face structure, and the air outlet (8) of blast cap (5) is offered towards slag notch (2) direction; In dreg cooling chamber (4) from slag inlet (1) to slag notch (2) at interval, the unsettled polylith wind deflector (9) that is disposed with up and down, dreg cooling chamber (4) is divided into a plurality of chambers of upper and lower intercommunication.
2, slag cooler according to claim 1 is characterized in that: the dreg cooling chamber's diapire (7) that is positioned at described slag notch (2) below is provided with second slag notch (10).
3, slag cooler according to claim 1 and 2, it is characterized in that: in the wall of described dreg cooling chamber (4) sidewall, roof and wind deflector (9), be provided with cooling water pipe (11), being connected with hot water or cold water's header (12,13) respectively of described cooling water pipe (11) into and out of the mouth of pipe.
4, slag cooler according to claim 3 is characterized in that: be coated with high heat conduction wearing-proof refractory material layer on the outer surface of described wind deflector (9).
5, slag cooler according to claim 1 and 2 is characterized in that: the air inlet that is positioned at the blast cap (5) on the same cascaded surface is connected with same plenum chamber (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620031228 CN2872107Y (en) | 2006-02-28 | 2006-02-28 | Oriented air-blowing slag cooler of step bed of water-cooling wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620031228 CN2872107Y (en) | 2006-02-28 | 2006-02-28 | Oriented air-blowing slag cooler of step bed of water-cooling wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2872107Y true CN2872107Y (en) | 2007-02-21 |
Family
ID=37740455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620031228 Expired - Fee Related CN2872107Y (en) | 2006-02-28 | 2006-02-28 | Oriented air-blowing slag cooler of step bed of water-cooling wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2872107Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943403A (en) * | 2010-09-30 | 2011-01-12 | 重庆大学 | Double-separation type fluidized bed slag cooler |
| CN103807853A (en) * | 2014-03-14 | 2014-05-21 | 哈尔滨工业大学 | Reciprocating grate-fluidized bed combined cooler |
| CN104359330A (en) * | 2014-10-29 | 2015-02-18 | 哈尔滨理工大学 | Multistage stepped type air water united differential fluidized bed cooler |
| CN104990086A (en) * | 2015-07-01 | 2015-10-21 | 集美大学 | Fluidized bed garbage incinerator |
-
2006
- 2006-02-28 CN CN 200620031228 patent/CN2872107Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943403A (en) * | 2010-09-30 | 2011-01-12 | 重庆大学 | Double-separation type fluidized bed slag cooler |
| CN101943403B (en) * | 2010-09-30 | 2011-11-23 | 重庆大学 | Double-separation type fluidized bed slag cooler |
| CN103807853A (en) * | 2014-03-14 | 2014-05-21 | 哈尔滨工业大学 | Reciprocating grate-fluidized bed combined cooler |
| CN103807853B (en) * | 2014-03-14 | 2016-03-30 | 哈尔滨工业大学 | Reciprocal grate-fluid bed associating cooler |
| CN104359330A (en) * | 2014-10-29 | 2015-02-18 | 哈尔滨理工大学 | Multistage stepped type air water united differential fluidized bed cooler |
| CN104990086A (en) * | 2015-07-01 | 2015-10-21 | 集美大学 | Fluidized bed garbage incinerator |
| CN104990086B (en) * | 2015-07-01 | 2018-05-22 | 集美大学 | A kind of fluidized bed refuse incinerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |