CN101832571A - Descending flue ash dropping hopper of top blow smelting waste heat boiler - Google Patents
Descending flue ash dropping hopper of top blow smelting waste heat boiler Download PDFInfo
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- CN101832571A CN101832571A CN 201010164639 CN201010164639A CN101832571A CN 101832571 A CN101832571 A CN 101832571A CN 201010164639 CN201010164639 CN 201010164639 CN 201010164639 A CN201010164639 A CN 201010164639A CN 101832571 A CN101832571 A CN 101832571A
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- flue
- ash
- waste heat
- top blow
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Abstract
The invention discloses a descending flue ash dropping hopper of a top blow smelting waste heat boiler. Top blow smelting can generate a great amount of dust in the smelting process and has strong cohesiveness. Flue gas firstly enters an ascending flue, a descending flue and a horizontal flue sequentially, and a slag formation phenomenon can occur on the pipe wall along the way of the flue gas. If the traditional method is used, bulk slagging on the boiler top falls down with a certain acceleration to smash a heated surface and can cause violent vibration of the horizontal flue, thereby influencing the safe running and the service life of the boiler. Aiming at the problems, an ash hopper is divided into a front part and a back part, the ash hopper arranged just below the descending flue is separated, adduction angles of the heated surfaces at both sides become smaller, and the heated surfaces are changed into heat resistant steel plates, thereby avoiding the condition that the heated surfaces are smashed. The ash hopper is supported on a steel column beam, grating is made of a high intensity steel plate, and a U-shaped groove is utilized to carry out absorption expansion displacement and sealing. When the bulk slagging falls down on the grating in the ash hopper, the impact of the bulk slagging can be transferred to a steel column so as to avoid the condition that the boiler is vibrated by being impacted.
Description
Technical field
The present invention relates to a kind of top blow smelting waste heat boiler downward-flow flue ash dropped unit.
Background technology
Waste heat boiler is the follow-up equipment of top blow smelting smelting furnace, is used to cool off the high-temperature flue gas of its generation, to satisfy arts demand, makes full use of the energy simultaneously, produces steam and is used for generating electricity, and satisfied or additional oneself production gone up energy needs.Top blow smelting is a smelting process advanced in the world today, and adaptability to raw material is wide.Owing in smelting process, can produce a large amount of dusts, and have stronger caking property.Flue gas successively enters rising, downward-flow flue and the horizontal flue of waste heat boiler, all the slagging scorification phenomenon can be arranged on the tube wall on the way, clinker on the uptake flue tube wall falls in the smelting furnace molten bath by the rapping meeting, and downward-flow flue particularly can constantly be piled into bulk in the turning, top, what facts have proved is heavily about more than one ton, and the height of downward-flow flue is generally more than 20 meters, the bulk slag that such height falls, and potential energy is big well imagines.The below of downward-flow flue is a horizontal flue, is provided with in its underpart and buries scraper slagging machine.Generally bury scraper slagging machine about 800mm in order to connect width, the both walls of boiler can be with less than receiving in 60 ° of angles.By this way, be bound to smash the water cooling tube heating surface if the slagging scorification of furnace roof bulk dashes to fall with certain acceleration, and can cause the horizontal flue strenuous vibration, thereby influence the safe operation and the service life of boiler.
Summary of the invention
The object of the present invention is to provide and a kind ofly can prevent effectively that the downward-flow flue clinker from smashing the descending flue ash dropping hopper of top blow smelting waste heat boiler of heating surface, guarantee the safe operation of boiler, overcome former descending flue ash dropping hopper heating surface and easily smash, easily cause the shortcoming of horizontal flue strenuous vibration.
A kind of descending flue ash dropping hopper of top blow smelting waste heat boiler, it is characterized in that: two parts before and after ash bucket is divided into, independent with locating ash bucket under the downward-flow flue, receiving angle in the heating surface of both sides is controlled in 20 °～30 °, and change heating surface into heat-resisting steel sheet and plate, the face that keeps from heat is smashed.Locate ash bucket under the downward-flow flue and be bearing on the steel column beam, grid is made with high-strength steel sheet, utilizes U type groove to absorb expansion displacement and sealing.Get off to drop in the ash bucket on the grid when the bulk slag impacts, impulsive force can be delivered on the steel column, avoids boiler to receive and impacts and shake.
A kind of descending flue ash dropping hopper of top blow smelting waste heat boiler is characterized in that: have big aperture of door on the grid of the side of ash bucket, the bulk slag can be clawed by aperture of door, and the slag of fritter and ash are discharged by ash pipe.
The present invention changes the water cooling tube heating surface of locating ash bucket under the downward-flow flue into heat-resisting steel sheet and plate, and the face that keeps from heat is smashed; Ash bucket is bearing on the steel column beam simultaneously, grid is made with high-strength steel sheet, gets off to drop in the ash bucket on the grid when the bulk slag impacts, and impulsive force can be delivered on the steel column, avoid the bulk slag to impact and get off to cause the horizontal flue strenuous vibration, thus the safe operation and the service life of guaranteeing boiler.And the bulk slag can be clawed by the aperture of door on the side grid of ash bucket, has solved the shortcoming that scraper slagging machine can't scrape the bulk slag of burying about original 800mm.
Description of drawings
Accompanying drawing is a descending flue ash dropping hopper of top blow smelting waste heat boiler structural representation of the present invention.
The specific embodiment
Describe embodiments of the present invention in detail below in conjunction with accompanying drawing:
Descending flue ash dropping hopper of top blow smelting waste heat boiler of the present invention, ash bucket is divided into front and back two parts, ash bucket 1 is independent with locating under the downward-flow flue, receiving angle in the heating surface of both sides is controlled in 20 °～30 °, and change heating surface into the 15CrMo heat-resisting steel sheet and plate, the face that keeps from heat is smashed.This ash bucket 1 is bearing on the steel column beam 2, and grid 3 usefulness high-strength steel sheet 0Cr18Ni9 make, and utilizes U type groove to absorb expansion displacement and sealing.Get off to drop in the ash bucket on the grid when the bulk slag impacts, impulsive force can be delivered on the steel column, avoids boiler to receive and impacts and shake.Have big aperture of door 4 on the grid of the side of ash bucket, the bulk slag can be clawed by aperture of door, and the slag of fritter and ash are discharged by ash pipe.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention; make some alternative or obvious modification that are equal to without departing from the inventive concept of the premise; and performance or purposes are identical, then should be considered as belonging to the protection domain that claims that the present invention submits to are determined.
Claims (3)
1. descending flue ash dropping hopper of top blow smelting waste heat boiler, it is characterized in that: two parts before and after ash bucket is divided into, ash bucket (1) is independent with locating under the downward-flow flue, receiving angle in the heating surface of both sides is controlled in 20 °～30 °, and change heating surface into heat-resisting steel sheet and plate, locate ash bucket (1) under the downward-flow flue and be bearing on the steel column beam (2), grid (3) is made with high-strength steel sheet, utilizes U type groove to absorb expansion displacement and sealing.
2. descending flue ash dropping hopper of top blow smelting waste heat boiler according to claim 1 is characterized in that: heating surface changes the 15CrMo heat-resisting steel sheet and plate into, and grid (3) is made with high-strength steel sheet 0Cr18Ni9.
3. descending flue ash dropping hopper of top blow smelting waste heat boiler according to claim 1 and 2 is characterized in that: have big aperture of door (4) on the grid of the side of ash bucket, the bulk slag can be clawed by aperture of door, and the slag of fritter and ash are discharged by ash pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101646395A CN101832571B (en) | 2010-05-06 | 2010-05-06 | Descending flue ash dropping hopper of top blow smelting waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101646395A CN101832571B (en) | 2010-05-06 | 2010-05-06 | Descending flue ash dropping hopper of top blow smelting waste heat boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101832571A true CN101832571A (en) | 2010-09-15 |
| CN101832571B CN101832571B (en) | 2012-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101646395A Active CN101832571B (en) | 2010-05-06 | 2010-05-06 | Descending flue ash dropping hopper of top blow smelting waste heat boiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925806A (en) * | 2014-04-01 | 2014-07-16 | 南昌江能热动工程技术有限责任公司 | Multi-channel back type integrated alkali sulphide converter waste heat boiler device |
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| EP0200588A1 (en) * | 1985-03-25 | 1986-11-05 | Constructions Navales Et Industrielles De La Mediterranee | Process for the purification of fumes from garbage incineration plants |
| CN2102803U (en) * | 1991-04-13 | 1992-04-29 | 机械电子工业部上海发电设备成套设计研究所 | Rotary core tube dust remover |
| CN2344074Y (en) * | 1998-07-21 | 1999-10-20 | 中国科学院广州能源研究所 | Front shutter inertia dust-removing device |
| US20050150439A1 (en) * | 2004-01-08 | 2005-07-14 | Ryan Anthony M. | Baffle for increased capture of popcorn ash in economizer hoppers |
| CN101012934A (en) * | 2007-02-12 | 2007-08-08 | 中联实业股份有限公司 | Furnace dust separating arrangement of refuse burning furnace |
| CN201028469Y (en) * | 2007-04-30 | 2008-02-27 | 夏正 | W shaped full natural circulation sulfurous iron ore exhaust-heat boiler |
| CN201285059Y (en) * | 2008-10-27 | 2009-08-05 | 中国恩菲工程技术有限公司 | Ash hopper |
| CN101701702A (en) * | 2009-10-20 | 2010-05-05 | 创冠环保(中国)有限公司 | Waste incineration heat recovery boiler |
-
2010
- 2010-05-06 CN CN2010101646395A patent/CN101832571B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0200588A1 (en) * | 1985-03-25 | 1986-11-05 | Constructions Navales Et Industrielles De La Mediterranee | Process for the purification of fumes from garbage incineration plants |
| CN2102803U (en) * | 1991-04-13 | 1992-04-29 | 机械电子工业部上海发电设备成套设计研究所 | Rotary core tube dust remover |
| CN2344074Y (en) * | 1998-07-21 | 1999-10-20 | 中国科学院广州能源研究所 | Front shutter inertia dust-removing device |
| US20050150439A1 (en) * | 2004-01-08 | 2005-07-14 | Ryan Anthony M. | Baffle for increased capture of popcorn ash in economizer hoppers |
| CN101012934A (en) * | 2007-02-12 | 2007-08-08 | 中联实业股份有限公司 | Furnace dust separating arrangement of refuse burning furnace |
| CN201028469Y (en) * | 2007-04-30 | 2008-02-27 | 夏正 | W shaped full natural circulation sulfurous iron ore exhaust-heat boiler |
| CN201285059Y (en) * | 2008-10-27 | 2009-08-05 | 中国恩菲工程技术有限公司 | Ash hopper |
| CN101701702A (en) * | 2009-10-20 | 2010-05-05 | 创冠环保(中国)有限公司 | Waste incineration heat recovery boiler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925806A (en) * | 2014-04-01 | 2014-07-16 | 南昌江能热动工程技术有限责任公司 | Multi-channel back type integrated alkali sulphide converter waste heat boiler device |
| CN103925806B (en) * | 2014-04-01 | 2015-09-30 | 南昌江能热动工程技术有限责任公司 | A kind of multichannel back of the body formula integration akali sulphide Converter Residual Heat Boiler device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101832571B (en) | 2012-01-04 |
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Address after: 330031 No. 888, Qian Hu Road, Hongjiao Island, Nanchang, Jiangxi. Patentee after: China ruim engineering technology Limited by Share Ltd Address before: No. 1, Bayi Avenue, Nanchang, Jiangxi Province, Jiangxi Patentee before: China Nerin Engineering Co., Ltd. |