CN103267415A - Slag laying method for roasting furnace in production of pyrite made acid - Google Patents
Slag laying method for roasting furnace in production of pyrite made acid Download PDFInfo
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- CN103267415A CN103267415A CN2013102253823A CN201310225382A CN103267415A CN 103267415 A CN103267415 A CN 103267415A CN 2013102253823 A CN2013102253823 A CN 2013102253823A CN 201310225382 A CN201310225382 A CN 201310225382A CN 103267415 A CN103267415 A CN 103267415A
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- slag
- furnace
- stove
- roaster
- fluidization
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Abstract
The invention discloses a slag laying method for a roasting furnace in production of pyrite made acid. The slag laying method comprises the following operation steps of: preparing a bed charge, wherein a certain amount of bed charge slag is fed in the roasting furnace by a feeding belt conveyor according to the calculated size of a roasting furnace bottom, the bed charge slag is required to cover the roasting furnace bottom and a furnace bottom hood and to be 1cm-2cm higher than the furnace bottom hood, and then the slag in the furnace is manually flattened; after relevant valves and manholes are closed, starting a furnace bottom fan according to regulations so as to supply air into the furnace until that fluidization just starts in the furnace; and feeding, namely while the fluidization of solids in the furnace is kept, feeding slag into the furnace by the feeding belt conveyor until the whole roasting furnace bottom is fully covered with the fed slag by boiling fluidization and the slag in the furnace meets the height requirement of technical design. According to the slag laying method, the slag laying operation of the roasting furnace is simplified, the labor intensity is lowered, the harm of dust to operators is reduced, the time for the operators working in the furnace is shortened, the labor risk is lowered, the operation procedure of subcooled boiling is reduced and time is saved.
Description
Technical field
The present invention relates to the pyrite-based sulfuric acid production production technology, be specifically related to roaster shop slag method in the pyrite-based sulfuric acid production production.
Background technology
In the pyrite-based sulfuric acid production production process, roaster need be spread certain altitude and even smooth bed material.With thermal source the roaster bed material is heated up then, reach and start the boiling of furnace bottom blower fan after the uniform temperature and feed intake.
Existing pyrite-based sulfuric acid production roaster shop slag be artificial shop slag, add a certain amount of slag just need manually enter smooth, and then slag input, smooth again, cycling like this until reach need the ebullated bed height; Need employ great amount of manpower, and shop slag work situation is relatively poor in the stove, dust is bigger to operator's harm, for safety of workers, does labour protection well, alternate operation, and the shop slag is also longer working time, and production is had certain influence.Also be that needs work against time when special overhaul and repairing, spend more the time-consuming overhaul progress that usually influences.
Summary of the invention
The objective of the invention is original overhaul and repairing the time needs the workman to change into semi-mechanization badly carrying out blue-collar checking maintenance work fully, and from improve working conditions at all, the surfaceman is healthy.
Operating procedure of the present invention is: 1, the preparation of bed material, calculate according to size at the bottom of the roaster, and in roaster, put into a certain amount of bed material slag with belt feeder, require the bed material slag to cover blast cap in whole furnace bottoms and the stove, and exceeding 1cm-2cm, the feeding belt that stops then manually advances in the stove smooth; 2, closed related valve, sealing manhole after, start the furnace bottom blower fan by rules, air intake in the stove is observed in the stove solid material and is begun fluidization and get final product; 3, reinforced: as to keep fluidization in the stove simultaneously, add the pan feeding slag with belt feeder in stove, the material slag of adding evenly is paved with whole roaster furnace bottom by fluidization of material state in the fluidized bed furnace, till the material slag reached the design height requirement in the stove, the shop slag work of roaster was just finished; In the slag process of shop, note observing, process conditions in the control stove, remain in the technological operation scope that solid material is in fluidized state.
Effect of the present invention or advantage: created a kind of shop slag method for the gas washing in SA production roaster.Can simplify the operation, reduce labour intensity, mechanically actuated, relatively manually-operated is saved time; Reduce dust to operative employee's harm; Reduce operating personnel in the working time of stove, reduce the work risk; Reduce Cold Boiling and rise operational sequence, save time.
The specific embodiment
Embodiment 1
The concrete operations step is as follows:
1, in hopper, adds qualified bed material;
2, start feeding belt and in stove, add a certain amount of bed material, adding the bed material amount is to calculate according to roaster bottom size, and bed height covers blast cap and exceeds 1cm-2cm for covering blast cap in whole furnace bottoms and the stove, behind the bed material that adds sufficient Enough amount of calculation, belt feeder stops;
3, manually enter roaster, smooth bed material;
4, closed related valve, sealing manhole after, start the furnace bottom blower fan by rules, air intake in the stove is observed in the stove just solid material and is begun fluidization and get final product;
5, slow air intake in the roaster observes that fluidization forms in the stove;
6, start belt feeder again and add bed material in stove, keep fluidization in the stove by the size of regulating air quantity in the stove, bed material is taped against the technological design height at the bottom of roaster, and the shop slag work of roaster is just finished.
Claims (1)
1. roaster shop slag method during a pyrite-based sulfuric acid production is produced, the operating procedure that it is characterized in that this method is: the 1. preparation of bed material, calculate according to size at the bottom of the roaster, in roaster, put into a certain amount of bed material slag with belt feeder, require the bed material slag to cover blast cap in whole furnace bottoms and the stove, and exceeding 1cm-2cm, the feeding belt that stops then manually advances in the stove smooth; 2. after having closed related valve, sealing manhole, start the furnace bottom blower fan by rules, air intake in the stove is observed in the stove solid material and is begun fluidization and get final product; 3. reinforced: as to keep fluidization in the stove simultaneously, add the pan feeding slag with belt feeder in stove, the material slag of adding evenly is paved with whole roaster furnace bottom by fluidization of material state in the fluidized bed furnace, till the material slag reached the design height requirement in the stove, the shop slag work of roaster was just finished; In this shop slag process, note observing, process conditions in the control stove, remain in the technological operation scope that solid material is in fluidized state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102253823A CN103267415A (en) | 2013-06-07 | 2013-06-07 | Slag laying method for roasting furnace in production of pyrite made acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102253823A CN103267415A (en) | 2013-06-07 | 2013-06-07 | Slag laying method for roasting furnace in production of pyrite made acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103267415A true CN103267415A (en) | 2013-08-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102253823A Pending CN103267415A (en) | 2013-06-07 | 2013-06-07 | Slag laying method for roasting furnace in production of pyrite made acid |
Country Status (1)
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| CN (1) | CN103267415A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0114040A1 (en) * | 1982-12-21 | 1984-07-25 | VOEST-ALPINE Aktiengesellschaft | Method and melt-down gasifier for producing molten pig iron or crude steel products |
| EP0489226A1 (en) * | 1990-12-06 | 1992-06-10 | Lentjes Ag | Process and installation for the improvement of the bed mass combustion during the fluidized bed firing |
| KR960010605B1 (en) * | 1991-06-03 | 1996-08-06 | 미쯔비시 주우고오교오 가부시기가이샤 | Method and apparatus for preventing the adhesion of dust in a furnace or fluidized bed inclnerator |
| CN102225749A (en) * | 2011-04-27 | 2011-10-26 | 瓮福（集团）有限责任公司 | Start-up method of fluidized bed roaster |
| CN102745651A (en) * | 2012-07-17 | 2012-10-24 | 威海恒邦化工有限公司 | Energy-saving and environmental-friendly method for heating fluidized bed furnace |
-
2013
- 2013-06-07 CN CN2013102253823A patent/CN103267415A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0114040A1 (en) * | 1982-12-21 | 1984-07-25 | VOEST-ALPINE Aktiengesellschaft | Method and melt-down gasifier for producing molten pig iron or crude steel products |
| EP0489226A1 (en) * | 1990-12-06 | 1992-06-10 | Lentjes Ag | Process and installation for the improvement of the bed mass combustion during the fluidized bed firing |
| KR960010605B1 (en) * | 1991-06-03 | 1996-08-06 | 미쯔비시 주우고오교오 가부시기가이샤 | Method and apparatus for preventing the adhesion of dust in a furnace or fluidized bed inclnerator |
| CN102225749A (en) * | 2011-04-27 | 2011-10-26 | 瓮福（集团）有限责任公司 | Start-up method of fluidized bed roaster |
| CN102745651A (en) * | 2012-07-17 | 2012-10-24 | 威海恒邦化工有限公司 | Energy-saving and environmental-friendly method for heating fluidized bed furnace |
Non-Patent Citations (1)
| Title |
|---|
| 化学工业部人事教育司、化学工业部教育培训中心组织编写: "《焙烧与工业炉》", 31 December 1997, article "《沸腾炉的开停车》" * |
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Application publication date: 20130828 |