CN103307616A - Boiler cold slag broken coke dry discharging aggregate unit (machine) - Google Patents
Boiler cold slag broken coke dry discharging aggregate unit (machine) Download PDFInfo
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- CN103307616A CN103307616A CN 201210065246 CN201210065246A CN103307616A CN 103307616 A CN103307616 A CN 103307616A CN 201210065246 CN201210065246 CN 201210065246 CN 201210065246 A CN201210065246 A CN 201210065246A CN 103307616 A CN103307616 A CN 103307616A
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Abstract
The invention discloses a boiler cold slag broken coke dry discharging aggregate unit (machine), which comprises a boiler bottom cold slag low-pressure coal economizer, male and female tooth rollers and a water and wind double-cooling boiler slag conveyor, wherein the boiler bottom cold slag low-pressure coal economizer consists of a header and a heated surface, is arranged on a boiler dry bottom hopper and is embedded into ash; softened water or demineralized water or condensation water is introduced into the boiler bottom cold slag low-pressure coal economizer for cooling; after being heated, the softened water or demineralized water or condensation water is introduced into a boiler water feeding system or heat supply network; the male and female tooth rollers are arranged below the boiler bottom cold slag low-pressure coal economizer, are in a hollow structure and are rotated in parallel in opposite directions; cold wind is introduced into the male and female tooth rollers; the male and female tooth rollers are provided with multiple rows of rake teeth; grooves are arranged at intervals; wind is blown out from groove holes; slag cokes are crushed to fall into the box body of the water and wind double-cooling boiler slag conveyor; the box body of the water and wind double-cooling boiler slag conveyor is made of double layers of steel plates; the softened water or demineralized water or condensation water is introduced into a jacket for cooling; after being heated, the softened water or demineralized water or condensation water enters the boiler bottom cold slag low-pressure coal economizer; after being cooled and crushed, the boiler slag is conveyed to a next stage of conveying equipment or slag storage cabin. The boiler cold slag broken coke dry discharging aggregate unit (machine) is used for cooling, crushing the boiler slag cokes and carrying out dry discharging conveying and residual heat recovery and use on the boiler slag cokes.
Description
Technical field
The present invention relates to a kind of boiler high temperature lime-ash cooling, fragmentation, heat recovery and the row of doing and carry the technical method of anhydrous consumption.
Background technology
The wet method slagging-off is mostly adopted in the pulverized-coal fired boiler slagging-off, i.e. water-filling in the crust block pond below the boiler furnace hopper, the slag that coal dust produces after boiler combustion falls into the crust block pond, after water cooling, is rushed to detritus tank by press water and is beaten to storage ash by the slag stock pump by entering sluiceway behind slag crusher or the dragveyer.This slagging-off mode water content consumption is large, multistage conveying, and power consumption is high, and the generating production cost is high; The heat loss due to sensible heat in slag is large, and coal consumption is high; Lime-ash is after cold water soaks, and physics, chemical property change, and using value reduces, and the recycling scope reduces.Along with the continuous rising of the reinforcement of energy-saving and emission-reduction and water price, flyash using value, boiler wet method hydraulic slag discharging mode will be eliminated.
Summary of the invention
Large in order to solve existing pulverized-coal fired boiler water sluice water content consumption, production cost is high, the heat loss due to sensible heat in slag is large, the problem that coal consumption is high, the invention provides a kind of anhydrous consumption, few power consumption, subtract coal consumption, the afterheat of slags recoverable, improve the dry slag disposal technical method of boiler efficiency, solve afterheat of slags waste, coal consumption is high, power consumption is high and the water sluice water consumption is large problem.
Its technical scheme is: the broken parch row of boiler slag-cooling composite set (machine), comprise altogether black furnace slag conveyer of the cold slag low pressure of furnace bottom economizer, negative and positive rod-toothed crusher, water wind, the cold slag low pressure of described furnace bottom economizer is comprised of header and heating surface, be arranged in boiler furnace hopper place, interior logical demineralized water or condensate water or demineralized water, heating surface is all or part of during operation is embedded in the slag, at the bottom of the Sealing furnace, cooled slag enters the feed water system of boiler (such as oxygen-eliminating device, pump intake condenses) or heat supply network after water is heated.Heating surface can be made suitable body according to ash bucket geometry and heat exchange, so as heating surface also can keep off protect that the superheater that comes off of top protects watt, pipe clamp and bulk cinder, broken by following negative and positive discaling roll after the slag cooling.Described negative and positive discaling roll is arranged under the cold slag low pressure of the furnace bottom economizer, and hollow-core construction is arranged in parallel and rotates in opposite directions, in logical cold wind, be equipped with on the discaling roll many row's rake teeths and axially, radially recessing, wind blows out from slotted eye, cooling negative and positive discaling roll, slag Jiao pulverizes altogether black furnace slag conveyer casing of backward entry wind.Described geomantic omen is cold slag extractor altogether, casing is the double-layer plate plate structure, logical demineralized water or condensate water or demineralized water in the interlayer, enter the cold slag low pressure of the furnace bottom economizer of top after being heated, then enter the feed water system of boiler (such as oxygen-eliminating device, pump intake condenses) or heat supply network, interval, casing side has maintenance and inspection cleaning aperture of door, in order to remove tamper and fault eliminating.The eliminating of slag is carried can adopt scrapper conveyor, the driving wheel of scrapper conveyor, driven pulley are contained in casing two, the water pipe spray that part is immersed in the cold rinse bank or is set up, scraper plate and chain constraint, under the drive of driving wheel, move, slag is in moving process, by the cooling water in the casing and cooling air cooling, scraper plate and chain movement cool during to the tank ends tank once again, the vertical arranged cold of scrapper conveyor box inside air channel, is connected with pressure fan outlet and communicates, have blowhole on the air channel, cool off flight chain and slag.Also can adopt auger to carry, be connected with the air of pressure in its helical rotor, air inlet pipe one end links to each other with source of the gas (pressure fan or air compressor machine or gas wind pipeline), the other end links to each other with the swivel joint of the two black furnace slag conveyer casings of water wind, 360 degree flexible rotating sealings are not tightly leaked, and are transferred under the strength boosting of slag in screw propulsion and spiral.Slag is brought to storage bin or next stage conveying equipment after three cooling downs of black furnace slag conveyer altogether through the cold slag low pressure of furnace bottom economizer, the fragmentation of negative and positive discaling roll, geomantic omen.
Be the extension device life-span, slag is carried scrapper conveyor or auger and the direct contact portion of slag, does abrasionproof and processes,, heatproof wear-resisting according to the employing of slag physicochemical properties, anti-corrosion material.For convenient; machine operation is grasped in monitoring; the negative and positive discaling roll that rotates, the two black furnace slag conveyers of water wind; by motor-driven; motor is provided with overload protection and warning device; adjust rotating speed and the size of exerting oneself according to the high-temperature material amount, the negative and positive discaling roll of the cold slag low pressure of furnace bottom economizer, rotation, the two black furnace slag conveyer places of water wind, the special camera of band protection is equipped with at the scene.
Accompanying drawing Fig. 1 is the broken parch row of boiler slag-cooling composite set (machine) structural representation.The cold slag low pressure of 1-furnace bottom economizer, the two black furnace slag conveyer casings of 2-water wind, 3-negative and positive discaling roll, 4-scraper plate, 5-cold air duct.
The specific embodiment
With reference to accompanying drawing example structure schematic diagram, the broken parch row of boiler slag-cooling composite set (machine) comprises the cold slag low pressure of furnace bottom economizer 1, geomantic omen altogether black furnace slag conveyer 2, negative and positive discaling roll 3.The cold slag low pressure of furnace bottom economizer is comprised of header and heating surface, be arranged in boiler furnace hopper place, interior logical demineralized water or condensate water or demineralized water, heating surface is all or part of during operation is embedded in the slag, at the bottom of the Sealing furnace, cooled slag enters the feed water system of boiler (such as oxygen-eliminating device, pump intake condenses) or heat supply network after water is heated.Heating surface can be made " W " shape, or " M " shape, or " V " shape, or S shape, or rhombus or other shape, and the superheater that comes off of top protects watt so that gear protects, pipe clamp or bulk cinder, enters following negative and positive discaling roll 3 fragmentations after the cooling of boiler cinder.Slag is through negative and positive discaling roll 3 hollow-core constructions, be arranged in parallel and rotate in opposite directions, interior logical cold wind, blow out by the blowhole in the groove, the cooling discaling roll, slag Jiao pulverizes altogether cold slag extractor of laggard entry wind, logical demineralized water or condensate water or demineralized water in the casing interlayer, the cold slag low pressure of the furnace bottom economizer above entering after being heated.Water wind altogether cold slag extractor can adopt scrapper conveyor, and its driving wheel, driven pulley partly are immersed in the cold rinse bank or by cold water and spray.The vertical arranged cold of scrapper conveyor box inside air channel 5 is connected with pressure fan outlet and communicates, and has blowhole on the air channel, cools off flight chain 4 and slag.Water wind altogether cold slag extractor also can adopt auger to carry slag, is connected with the air of pressure in its helical rotor, is excluded under the strength boosting of slag in screw propulsion and spiral.Slag is brought to next stage conveying equipment or storage bin after three cooling downs of black furnace slag conveyer altogether through the cold slag low pressure of furnace bottom economizer, negative and positive rod-toothed crusher, geomantic omen.
For removing foreign material and fixing a breakdown, water wind altogether cold type slag box body side upright part interval has maintenance and inspection cleaning aperture of door.Be the extension device life-span, slag is carried scrapper conveyor or auger and the direct contact portion of slag, does abrasionproof and processes,, heatproof wear-resisting according to the employing of slag physicochemical properties, anti-corrosion material.For machine operation is grasped in monitoring; the negative and positive discaling roll that rotates, the two black furnace slag conveyers of water wind; by motor-driven; motor is provided with overload protection and warning device; adjust rotating speed and the size of exerting oneself according to the high-temperature material amount; the negative and positive discaling roll of the cold slag low pressure of furnace bottom economizer, rotation, the two black furnace slag conveyer places of water wind, the special camera of band protection is equipped with at the scene.
Claims (8)
1. composite set (machine) is arranged in the broken parch of boiler slag-cooling, it is characterized in that: comprise the cold slag low pressure of furnace bottom economizer, the negative and positive discaling roll, the two black furnace slag conveyers of water wind, the cold slag low pressure of described furnace bottom economizer is comprised of header and heating surface, described negative and positive discaling roll is arranged under the cold slag low pressure of the furnace bottom economizer, be arranged in parallel and rotate in opposite directions, the two black furnace slag conveyers of described water wind are arranged under the negative and positive rod-toothed crusher, high temperature furnace slag cools through the cold slag low pressure of furnace bottom economizer, the negative and positive rod-toothed crusher pulverizes and again after the cold cooling, enter the two black furnace slag conveyers of water wind, be brought under the storage bin after three cooling downs or the one-level conveying equipment.
2. according to the broken parch row of claims 1 described boiler slag-cooling composite set (machine), it is characterized in that: the cold slag low pressure of described furnace bottom economizer is arranged in boiler bottom ash bucket place, at least formed by a header and many row's light pipe heating surfaces, interior logical demineralized water or condensate water or demineralized water, the surface is covered with to be protected watt, heating surface is all or part of during operation is embedded in the slag, at the bottom of the Sealing furnace, cooled slag, after being heated, water enters the feed water system of boiler (such as oxygen-eliminating device, pump intake condenses) or heat supply network, heating surface is made suitable body according to ash bucket physical dimension and heat exchange needs and is arranged, can keep off and protect the superheater that comes off of top and protect watt, pipe clamp and bulk cinder, broken by following negative and positive discaling roll after the slag cooling.
3. according to the broken parch row of claims 1 described boiler slag-cooling composite set (machine), it is characterized in that: two solid pedestals of negative and positive rod-toothed crusher are on bearings at both ends, the hollow discaling roll fixed with solid shafting is equipped with in the outside, through-flow moving cooling working medium (wind or compressed air) in the chamber, discaling roll is provided with the wear-resisting of the easy dismounting and change of many rows, heatproof, shock proof rake teeth, between axially, radially all form recessed pockets, have exhaust vent in the groove, swivel joint is equipped with at negative and positive discaling roll two ends, be connected with cooling working medium (wind or compressed air) source, discaling roll rotates in opposite directions, falls into following scraper plate slag extractor casing after slag Jiao is pulverized.
4. according to the broken parch row of claims 1 described boiler slag-cooling composite set (machine), it is characterized in that: the two black furnace slag conveyers of water wind, casing is the double-layer plate plate structure, logical demineralized water or condensate water or demineralized water in the chuck, enter the cold slag low pressure of the furnace bottom economizer of top after being heated, the terminal belly of casing has slag notch, and the interval, side has maintenance and inspection cleaning aperture of door.
5. according to the broken parch row of claims 1 described boiler slag-cooling composite set (machine), it is characterized in that: the two black furnace slag conveyers of water wind, can adopt the scrapper conveyor form, its driving wheel, driven pulley is contained in casing two, the cold water spray that part is immersed in the cold rinse bank or is set up, scraper plate and chain constraint, under the drive of driving wheel, move, slag is lowered the temperature by the cold wind of the cold water in the casing and both sides, arranged cold air channel, scrapper conveyor casing both sides is connected with the outlet of pressure fan or air compressor machine and communicates, and has blowhole on the air channel, cooling flight chain and slag, slag is taken to sludge-store cabin or next stage conveying equipment by scraper plate and cold wind.
6. according to the broken parch row of claims 1 described boiler slag-cooling composite set (machine), it is characterized in that: the two black furnace slag conveyers of water wind, also can adopt auger to carry, be connected with the air of pressure in its helical rotor, air inlet pipe one end links to each other with source of the gas (pressure fan or air compressor machine or gas wind pipeline), the other end links to each other with the swivel joint of the two black furnace slag conveyer casings of water wind, and 360 degree flexible rotating sealings are not tightly leaked, and are transferred under the strength boosting of slag in screw propulsion and spiral.
7. according to the broken parch row of claims 1 described boiler slag-cooling composite set (machine), it is characterized in that: slag is carried scrapper conveyor or auger and the direct contact portion of slag, do abrasionproof and process, can adopt wear-resisting, heatproof, anti-corrosion material according to the slag physicochemical properties.
8. according to the broken parch row of claims 1 described boiler slag-cooling composite set (machine); it is characterized in that: the negative and positive discaling roll of rotation, the two black furnace slag conveyers of water wind; by motor-driven; motor is provided with overload protection and warning device; adjust rotating speed and the size of exerting oneself according to the high-temperature material amount; the negative and positive discaling roll of the cold slag low pressure of furnace bottom economizer, rotation, the two black furnace slag conveyer places of water wind, the special camera of band protection is equipped with at the scene, and machine operation is grasped in monitoring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201210065246 CN103307616A (en) | 2012-03-13 | 2012-03-13 | Boiler cold slag broken coke dry discharging aggregate unit (machine) |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201210065246 CN103307616A (en) | 2012-03-13 | 2012-03-13 | Boiler cold slag broken coke dry discharging aggregate unit (machine) |
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| CN103307616A true CN103307616A (en) | 2013-09-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972622A (en) * | 2016-06-30 | 2016-09-28 | 洛阳益矿机械设备有限公司 | Novel rolling type scraper slag salvaging machine |
| CN108895853A (en) * | 2018-07-24 | 2018-11-27 | 陈孝 | A method of improving energy recovery utilization rate |
| CN113154418A (en) * | 2021-06-08 | 2021-07-23 | 青岛海洲电力设备有限公司 | Implementation scheme for transforming wet slag dragging system into dry slag discharging system |
| CN113719832A (en) * | 2021-09-06 | 2021-11-30 | 烟台东源热电有限公司 | Combustion device of circulating fluidized bed boiler |
| CN114590607A (en) * | 2022-03-09 | 2022-06-07 | 上海电气集团股份有限公司 | Slag discharging system for high-temperature ash and use method thereof |
-
2012
- 2012-03-13 CN CN 201210065246 patent/CN103307616A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972622A (en) * | 2016-06-30 | 2016-09-28 | 洛阳益矿机械设备有限公司 | Novel rolling type scraper slag salvaging machine |
| CN105972622B (en) * | 2016-06-30 | 2018-03-30 | 洛阳益矿机械设备有限公司 | A kind of roller submerged slag conveyor |
| CN108895853A (en) * | 2018-07-24 | 2018-11-27 | 陈孝 | A method of improving energy recovery utilization rate |
| CN108895853B (en) * | 2018-07-24 | 2019-09-24 | 绍兴盈顺机电科技有限公司 | A method of improving energy recovery utilization rate |
| CN113154418A (en) * | 2021-06-08 | 2021-07-23 | 青岛海洲电力设备有限公司 | Implementation scheme for transforming wet slag dragging system into dry slag discharging system |
| CN113719832A (en) * | 2021-09-06 | 2021-11-30 | 烟台东源热电有限公司 | Combustion device of circulating fluidized bed boiler |
| CN114590607A (en) * | 2022-03-09 | 2022-06-07 | 上海电气集团股份有限公司 | Slag discharging system for high-temperature ash and use method thereof |
| CN114590607B (en) * | 2022-03-09 | 2024-03-19 | 上海电气集团股份有限公司 | Slag discharging system for high-temperature ash and using method thereof |
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Application publication date: 20130918 |
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