CN102997256A - Precision die forging chain dissepiment-type dry slag remover - Google Patents
Precision die forging chain dissepiment-type dry slag remover Download PDFInfo
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- CN102997256A CN102997256A CN2011102798879A CN201110279887A CN102997256A CN 102997256 A CN102997256 A CN 102997256A CN 2011102798879 A CN2011102798879 A CN 2011102798879A CN 201110279887 A CN201110279887 A CN 201110279887A CN 102997256 A CN102997256 A CN 102997256A
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Abstract
The invention relates to a precision die forging chain dissepiment-type dry slag remover which comprises a sealed box body in seal connection with a slag storage hopper of a boiler. A high temperature resistance dissepiment conveying belt and two precision die forging chains at both sides are arranged in the sealed box body, wherein the high temperature resistance dissepiment conveying belt passes through the slag storage hopper of the boiler and is used for receiving and conveying boiler slags; the two precision die forging chains at both the sides are used for dragging the high temperature resistance dissepiment conveying belt to operate; the chains are connected by a hinge pin; the chains are in surface contact with the hinge pin; the dissepiment conveying belt is of a groove-shaped structure and is positioned at the middle parts of the chains at both the sides; and ash slags fall into a dissepiment groove and is not in contact with the chains. The precision die forging chain dissepiment-type dry slag remover disclosed by the invention is reliable to operate, has high safety, high cleaning efficiency, a simple structure, high boiler efficiency and long service life and can be widely applied to a coal-fired boiler dry slag discharging system.
Description
Technical field the present invention relates to a kind of precision die forging chain scale plate pnenmatic slag handling machine, can be widely used in the dried dreg removing system of coal-burning boiler.
Background technology is present, and the coal burning boiler of power station dry slag-removing machine mainly adopts metal foraminous conveyer and two kinds of versions of crawler belt.But these two kinds of equipment all have the following disadvantages:
1, metal transmission net belt pnenmatic slag handling machine
(1) metal transmission net and dissepiment structure are adopted in metal foraminous conveyer dry slag-removing machine transportation section, and being in operation is prone to steel belt deviation, the phenomenon such as skid.
(2) this bottom, slag remover transportation section is provided with the cleaning chain, and the direction of cleaning chain convey materials is opposite with the cooling air traffic direction, and all upwards carries along the inclination angle, and transfer efficiency is very low, accumulated slag, chain rupture, disconnected scraper plate fault often occur, moves extremely unstable.And the cleaning catenary system is positioned at the small space of foraminous conveyer bottom, and repair and maintenance is very difficult.
(3) owing to clean transfer efficiency and the foraminous conveyer structure influence of chain, dry slag-removing machine lifting angle is restricted, and maximum lifting angle is 33 °, is unfavorable for site layout project.
(4) all cooling airs of dry slag-removing machine all enter boiler furnace, when the quantity of slag is larger, for improving cooling effect, need to strengthen the cooling air volume that enters, both strengthened the boiler bottom inleakage, if surpass permissible value, affect the boiler normal combustion, reduce boiler efficiency.
(5) in the interim maintenance process of equipment, there is a large amount of cold wind to enter burner hearth, also can affects the boiler normal combustion, reduce boiler efficiency.
2, crawler type dry slag-removing machine
(1) the crawler type dry slag-removing machine drags the grooved crawler belt by two high abrasion round-link chains, because round-link chain chain interannular is the line contacting pattern, after operation a period of time, it is inhomogeneous that wearing and tearing appear in the both sides round-link chain, not isometric phenomenon occurs, and the crawler belt side plate very easily weares and teares.
(2) guide plate on the both sides support roller support crawler belt side plate is interrupted layout, crawler belt fluctuation of service.The faults such as jam, distortion often occur, have a strong impact on the safe operation of boiler.
(3) all cooling airs of dry slag-removing machine all enter boiler furnace, when the quantity of slag is larger, for improving cooling effect, need to strengthen the cooling air volume that enters, both strengthened the boiler bottom inleakage, if surpass permissible value, affect the boiler normal combustion, reduce boiler efficiency.
(4) in the interim maintenance process of equipment, there is a large amount of cold wind to enter burner hearth, also can affects the boiler normal combustion, reduce boiler efficiency.Summary of the invention the object of the invention is to improve the deficiencies in the prior art, provide a kind of reliable, safe, sweeping efficiency is high, simple in structure, boiler efficiency is high, the precision die forging chain scale plate pnenmatic slag handling machine of long service life.
In order to achieve the above object, precision die forging chain scale plate pnenmatic slag handling machine of the present invention, comprise the seal case that is tightly connected with boiler storage slag bucket, be provided with in the seal case through the acceptance of boiler storage slag bucket slag notch and the high temperature resistant dissepiment conveyer belt of conveying slag, drag the both sides precision die forging chain of high temperature resistant dissepiment conveyer belt operation, the High-temperature cooling section and the sub-cooled section subregion baffle plate that arrange in the casing; Described chain adopts bearing pin to connect, and chain is that face contacts with bearing pin; Described dissepiment conveyer belt is trench structure, is positioned at the middle part of both sides chain, and lime-ash falls within the dissepiment groove, does not contact with chain.
Precision die forging chain scale plate pnenmatic slag handling machine of the present invention, described dissepiment conveyer belt which is provided with scraper cleaner.
Precision die forging chain scale plate pnenmatic slag handling machine of the present invention, described dissepiment conveyer belt carries the inclination angle can reach 45 °.
Precision die forging chain scale plate pnenmatic slag handling machine of the present invention, its operation principle is: have the seal case that is tightly connected with the dried slag bucket of boiler, be provided with the high temperature resistant dissepiment conveyer belt that the precision die forging chain drives in the seal case, carry dissepiment to have from cleaning function, can will fall within the thin slag cleaning of bottom half to the transportation section, high temperature furnace slag drops on continuously carries low-speed motion on the dissepiment, under suction function, the reverse seal case inside that enters of controlled a small amount of ambient, cool air, warm sludge on the dissepiment conveyer belt is cooled off by wind gradually, and finishes burning gradually.Cold air and high-temperature ash are carried out sufficient heat exchange, and air absorbs boiler radiant heat and lime-ash sensible heat, and air themperature is elevated to 300～400 ℃, is equivalent to the boiler secondary wind pushing temperature, enters burner hearth, and the temperature of slag then is down to 90～110 ℃.
Precision die forging chain scale plate pnenmatic slag handling machine of the present invention, described seal case, its inside is provided with the subregion joint, the cooling procedure of warm sludge is divided into High-temperature cooling section and sub-cooled section, High-temperature cooling section hot blast enters burner hearth, sub-cooled section cooling air is processed separately, not only eliminates because intake strengthens the impact on boiler efficiency, but Effective Raise boiler efficiency also.Described High-temperature cooling section, be positioned at boiler storage slag bucket slag notch below, controlled a small amount of cooling air is entered in the casing and with the high temperature warm sludge that falls by the air inlet of described seal case side and carries out heat exchange, described controlled a small amount of hot blast after the heating directly enters burner hearth, the hot blast temperature that assurance enters burner hearth reaches more than 400 ℃, improves boiler efficiency; Described sub-cooled section, be positioned at segmental arc and the tilting section of whole described seal case, controlled a large amount of cooling air is entered in the casing by the air inlet of seal case side, carry out heat exchange with the warm sludge in the course of conveying, warm sludge is cooled to below 100 ℃, enter subordinate's fragmentation and conveying equipment, described cooling air enters atmosphere after follow-up air cooling and dust pelletizing system.
Precision die forging chain scale plate pnenmatic slag handling machine of the present invention is carried dissepiment conveyer belt autogamy cleaning agency, can effectively clean the bottom dust stratification, need not add the cleaning chain is set, and the direction of cleaning material moves downwards along slag remover oblique ascension section, and the cleaning effect is not subjected to the equipment inclination effect, and sweeping efficiency is high.And reliable, eliminate accumulated slag, chain rupture, disconnected scraper plate fault fully.
Precision die forging chain scale plate pnenmatic slag handling machine of the present invention, high temperature resistant conveying dissepiment drags operation by both sides precision die forging chain, and described dissepiment is trench structure, adopts bearing pin to connect between chain, and chain is that face contacts with bearing pin.Chain wear is light, and even wearing, effectively avoids the chain sideslip, the dissepiment wearing and tearing.
Precision die forging chain scale plate pnenmatic slag handling machine of the present invention, described conveying dissepiment drives both sides chain synchronous operation by the toothed sprocket wheel that drags, without crawler belt skid, the disadvantage such as sideslip, reliable, safe.
Precision die forging chain scale plate pnenmatic slag handling machine of the present invention adopts high inclination-angle to carry, and can save arrangement space, directly cooled slag is delivered to the slag storehouse, saves a large amount of follow-up equipments, and system is simple and reliable.
Precision die forging chain scale plate pnenmatic slag handling machine of the present invention because dry bottom ash handling system has energy-conservation, water saving, Environmental-protection comprehensive is profitable, meets the industrial policy of country, and air-cooled dry-type slag discharging system can obtain extensive use.
In sum, precision die forging chain scale plate pnenmatic slag handling machine of the present invention, reliable, safe, sweeping efficiency is high, and is simple in structure, and boiler efficiency is high, long service life.
Description of drawings is further described the present invention below in conjunction with accompanying drawing and embodiment.
Fig. 1 is structural representation of the present invention;
Fig. 2 is chain and the dissepiment syndeton schematic diagram among Fig. 1;
Fig. 3 is the top view of Fig. 2.
The specific embodiment is in Fig. 1～Fig. 3, precision die forging chain scale plate pnenmatic slag handling machine of the present invention, comprise the seal case 1 that is tightly connected with boiler storage slag bucket 8, be provided with in the seal case through the acceptance of boiler storage slag bucket slag notch and the high temperature resistant dissepiment conveyer belt 2 of conveying slag, drag the both sides precision die forging chain 3 of high temperature resistant dissepiment conveyer belt operation, the High-temperature cooling section a and the sub-cooled section b subregion baffle plate 4 that arrange in the casing; Described chain adopts bearing pin 5 to connect, and chain is that face contacts with bearing pin; Described dissepiment conveyer belt is trench structure, is positioned at the middle part of both sides chain, and lime-ash falls within dissepiment 6 grooves, does not contact with chain.
Precision die forging chain scale plate pnenmatic slag handling machine of the present invention, described dissepiment conveyer belt which is provided with scraper cleaner 7.
Precision die forging chain scale plate pnenmatic slag handling machine of the present invention, described dissepiment conveyer belt carries the inclination angle can reach 45 °.
Claims (3)
1. precision die forging chain scale plate pnenmatic slag handling machine, it is characterized in that, comprise the seal case that is tightly connected with boiler storage slag bucket, be provided with in the seal case through the acceptance of boiler storage slag bucket slag notch and the high temperature resistant dissepiment conveyer belt of conveying slag, drag the both sides precision die forging chain of high temperature resistant dissepiment conveyer belt operation, the High-temperature cooling section and the sub-cooled section subregion baffle plate that arrange in the casing; Described chain adopts bearing pin to connect, and chain is that face contacts with bearing pin; Described dissepiment conveyer belt is trench structure, is positioned at the middle part of both sides chain, and lime-ash falls within the dissepiment groove, does not contact with chain.
2. precision die forging chain scale plate pnenmatic slag handling machine according to claim 1 is characterized in that described dissepiment conveyer belt which is provided with scraper cleaner.
3. precision die forging chain scale plate pnenmatic slag handling machine according to claim 1 and 2 is characterized in that, described dissepiment conveyer belt carries the inclination angle can reach 45 °.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102798879A CN102997256A (en) | 2011-09-15 | 2011-09-15 | Precision die forging chain dissepiment-type dry slag remover |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102798879A CN102997256A (en) | 2011-09-15 | 2011-09-15 | Precision die forging chain dissepiment-type dry slag remover |
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| CN102997256A true CN102997256A (en) | 2013-03-27 |
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| CN2011102798879A Pending CN102997256A (en) | 2011-09-15 | 2011-09-15 | Precision die forging chain dissepiment-type dry slag remover |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033894A (en) * | 2014-06-27 | 2014-09-10 | 青岛达能环保设备股份有限公司 | Air cooling scale hopper type slag conveying system of circulating fluidized bed boiler |
| CN104633680A (en) * | 2014-11-26 | 2015-05-20 | 青岛松灵电力环保设备有限公司 | Scale hopper type slag dryer system equipment for pulverized coal furnace |
| CN108758668A (en) * | 2018-06-22 | 2018-11-06 | 北京国电富通科技发展有限责任公司 | A kind of knockdown chain band structure |
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| JPS58219317A (en) * | 1982-06-16 | 1983-12-20 | Mitsubishi Heavy Ind Ltd | Continuous discharging device for ashes at furnace bottom |
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2011
- 2011-09-15 CN CN2011102798879A patent/CN102997256A/en active Pending
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| EP0972988A1 (en) * | 1998-07-14 | 2000-01-19 | Von Roll Umwelttechnik AG | Method and apparatus for extracting water from combustion residues mechanically discharged from a wet slag remover |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033894A (en) * | 2014-06-27 | 2014-09-10 | 青岛达能环保设备股份有限公司 | Air cooling scale hopper type slag conveying system of circulating fluidized bed boiler |
| CN104033894B (en) * | 2014-06-27 | 2016-07-13 | 青岛达能环保设备股份有限公司 | The CFB Boiler cold squama defeated slag system of bucket type |
| CN104633680A (en) * | 2014-11-26 | 2015-05-20 | 青岛松灵电力环保设备有限公司 | Scale hopper type slag dryer system equipment for pulverized coal furnace |
| CN108758668A (en) * | 2018-06-22 | 2018-11-06 | 北京国电富通科技发展有限责任公司 | A kind of knockdown chain band structure |
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Application publication date: 20130327 |
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