CN101319274A - Novel process for reutilization of revolving furnace mud - Google Patents
Novel process for reutilization of revolving furnace mud Download PDFInfo
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- CN101319274A CN101319274A CNA2007100116065A CN200710011606A CN101319274A CN 101319274 A CN101319274 A CN 101319274A CN A2007100116065 A CNA2007100116065 A CN A2007100116065A CN 200710011606 A CN200710011606 A CN 200710011606A CN 101319274 A CN101319274 A CN 101319274A
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- mud
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- converter
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention relates to a novel process for recovery and utilization of converter mud, which is characterized in that the process flow of transportation, recovery and utilization comprises the following steps that: the converter mud firstly enters a stirring tank of a base booster pump station, metering facilities such as a flowmeter, a massmeter and so on, are arranged before the stirring, a signal is sent to a master control room PLC of the base booster pump station, then the converter mud is sent to a concentration large well by an SGMB70/2.0 membrane pump in the base booster pump station through a pipeline, the concentration of the converter mud achieves 27 percent through concentration of bottom flow, then a concentrated tank is equipped with a slurry pump, and the converter mud is sent to the stirring tank through a pipeline; the bottom flow of a concentrator is equipped with a self-circulation facility, a membrane pump is arranged in a slurry adding pump station for sintering secondary pressure, and the converter mud is pressurized through a partial pressure pump station and then is sent to a primary mixer for mixture making. The transportation concentration is confirmed as 19.3 percent. The process can save the cost for mud pressing, processing and transportation, avoids dust mud scattered along roads by automobiles during the transportation from seriously polluting the environment, saves a large amount of water resource, and has remarkable economic benefit and social benefit.
Description
Technical field
The present invention be a kind of converter with steelworks in dust removal process after the sludged waste material that the produces recycling, delivering to sintering plant uses for the raw materials for sintering mix, turn waste into wealth, reduce the waste material second stage employ technology of iron resources waste, relate to a kind of revolving furnace mud and recycle novel process.
Background technology
At present, the dirt mud disposing technique of the converter dedusting water that each big steel mill of the whole nation generally adopts is that after being handled by tilted plate separator, its bed mud pressurization is promoted to press filtration between press filtration.Dirt mud after the press filtration is transported outward by automobile.
Existing steelwork converter dedusting sewage treatment system exists serious problems: the one, and year is expensive bigger.Dedusting mud because of concentration is low excessively, need to add polyacrylamide (3# flocculation agent) medicament for accelerating solid solidifies before sending into pressure filter, the reagent consumption amount is bigger, and only former two steelworkss of Anshan iron and steel plant consumed the 3# medicament in every month and promptly reach 7t, surplus in the of years expensive nearly 170 ten thousand yuan.The 2nd, water loss is big, and the excessive amount of water is big.Be used to prepare used clean circulating water of medicament and pressure filter backwashing water and all return inclined-plate clarifying basin, make its processing power that exceeds equipment, make that a large amount of backwater is excessive, flow into the waterways, cause the great lot of water resources waste.The 3rd, environmental pollution is serious.A large amount of solid dirt mud after press filtration need certain place to deposit the dirt mud serious environment pollution that automobile is scattered on the way in transportation.The 4th, outward transport expense height.Because of dirt mud amount is big, must drop into a large amount of manpower and materials to satisfy the ordinary production needs of continuous spoil disposal.
Summary of the invention
The objective of the invention is to have solved the difficult problem of revolving furnace mud pipeline transportation for overcoming the defective of above-mentioned existence; The heavy mud of steelwork converter dedusting is concentrated by tubing system and is reclaimed, and will concentrate the steel-making converter mud of recovery to carry with tubing system is unified, has avoided the pollution of other mode of transport to environment; Focus on: after steelwork converter mud concentrate is concentrated, be used for the mixed once batching of sintering process; Spray two kinds of modes of sprinkling batching on batching and the belt at the sintering primary mixer, solve the problem of batching spray nozzle clogging, provide a kind of revolving furnace mud to recycle novel process, take the revolving furnace mud of steelworks is concentrated recovery, deliver to the concentration basin of sintering plant by pipeline through the central pumping station pressurization, deliver to sintering through pressurization again after concentrating, use for the primary mixer batching.
Revolving furnace mud of the present invention is recycled the novel process content Description:
Revolving furnace mud of the present invention is recycled novel process, it is characterized in that: revolving furnace mud is recycled conveying in the novel process, is reclaimed, utilizes technical process to be:
Converter mud at first proceeds to the steel basin of total booster station, and before stirring, metering facilities such as under meter, quality meter are installed, signal is delivered to total booster station main control room PLC, be sent to by pipeline by the SGMB70/2.0 surge pump in total booster station again and concentrate big well, after concentrated underflow density reaches 27%, wear the slag stock pump at concentration basin, deliver to steel basin by pipeline; Be equipped with the self-circulation facility at thickener underflow, in adding the stock pump station, surge pump be set, supply with the pressurization of sintering secondary, after the pressurization of dividing potential drop pumping plant, give the primary mixer batching again and use.
Determine that transportation concentration is 19.3%.
Revolving furnace mud of the present invention is recycled novel process, and can save and press mud, processing, trucking costs, the dirt mud serious environment pollution of having avoided automobile in transportation, to be scattered on the way, and saved great amount of water resources.Have remarkable economic efficiency and social benefit.
Embodiment
Revolving furnace mud of the present invention is recycled conveying in the novel process, is reclaimed, utilizes technical process:
Converter mud at first proceeds to the steel basin of total booster station, and before stirring, metering facilities such as under meter, quality meter are installed, signal is delivered to total booster station main control room PLC, be sent to by pipeline by the SGMB70/2.0 surge pump in total booster station again and concentrate big well, after concentrated underflow density reaches 27%, wear the slag stock pump at concentration basin, deliver to steel basin by pipeline; Be equipped with the self-circulation facility at thickener underflow, in adding the stock pump station, surge pump be set, supply with the pressurization of sintering secondary, after the pressurization of dividing potential drop pumping plant, give the primary mixer batching again and use.
At first, the revolving furnace mud of steel-making passes through collection pumping plant separately, and its revolving furnace mud is starched stirred pot with pipe-line transportation to total booster station storage.Utilize total booster station inner septum pump will collect the revolving furnace mud that comes and carry out concentration by pipe-line transportation to concentration basin, its overflow water is sent steelworks back to through booster station and is used for producing.Revolving furnace mud after being concentrated is delivered in the storage slurry stirred pot.Can be equipped with corresponding delivery system according to distance, the discrepancy in elevation and operational throughput.
Nearer utilize the slag stock pump that adds in the stock pump station to be delivered directly to primary mixer and raw materials for sintering carries out mix.
Far away utilizing adds stock pump station inner septum pump delivery to booster station storage slurry stirred pot, by the pressurization of slag stock pump, is transported to primary mixer and raw materials for sintering and carries out mix.
Utilizing farthest adds stock pump station inner septum pump delivery to booster station storage slurry stirred pot, by the pressurization of slag stock pump, is transported to primary mixer (mixing machine charging belt) and carries out mix with raw materials for sintering.
The transportation concentration of design
Characteristics according to experimental converter mud are: the viscosity of liquid is big, and solid is than great (3.6t/m
3).Too high as transportation concentration, no doubt can reduce feed flow, but less than normal because of caliber, the plugging situation easily takes place, and concentration is low excessively, then increases feed flow, the waste energy consumption, and the increase one-time investment so the present invention has adopted the scheme of not only safe and reliable but also economical rationality, determines that transportation concentration is 19.3%.
Total feed flow
According to above-mentioned definite transportation concentration and do the ore deposit amount, feed flow and the flow that is remitted to booster station are: 31.6m
3/ h～120m
3/ h.
The invention solves the difficult problem of revolving furnace mud pipeline transportation; The heavy mud of steelwork converter dedusting is concentrated by tubing system and is reclaimed, and will concentrate the steel-making converter mud of recovery to carry with tubing system is unified, has avoided the pollution of other mode of transport to environment; Focus on: after steelwork converter mud concentrate is concentrated, be used for the mixed once batching of sintering process; Spray two kinds of modes of sprinkling batching on batching and the belt at the sintering primary mixer, solve the problem of batching spray nozzle clogging.
Claims (2)
1, a kind of revolving furnace mud is recycled novel process, it is characterized in that: revolving furnace mud is recycled conveying in the novel process, is reclaimed, utilizes technical process to be:
Converter mud at first proceeds to the steel basin of total booster station, and before stirring, metering facilities such as under meter, quality meter are installed, signal is delivered to total booster station main control room PLC, be sent to by pipeline by the SGMB70/2.0 surge pump in total booster station again and concentrate big well, after concentrated underflow density reaches 27%, wear the slag stock pump at concentration basin, deliver to steel basin by pipeline; Be equipped with the self-circulation facility at thickener underflow, in adding the stock pump station, surge pump be set, supply with the pressurization of sintering secondary, after the pressurization of dividing potential drop pumping plant, give the primary mixer batching again and use.
2, revolving furnace mud according to claim 1 is recycled novel process, it is characterized in that: determine that transportation concentration is 19.3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100116065A CN101319274A (en) | 2007-06-08 | 2007-06-08 | Novel process for reutilization of revolving furnace mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100116065A CN101319274A (en) | 2007-06-08 | 2007-06-08 | Novel process for reutilization of revolving furnace mud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101319274A true CN101319274A (en) | 2008-12-10 |
Family
ID=40179547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100116065A Pending CN101319274A (en) | 2007-06-08 | 2007-06-08 | Novel process for reutilization of revolving furnace mud |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101319274A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856658A (en) * | 2010-06-01 | 2010-10-13 | 云南大红山管道有限公司 | Method for dredging soft blockage of long-distance iron ore concentrate pipeline |
| CN105714104A (en) * | 2015-12-09 | 2016-06-29 | 涞源县奥宇钢铁有限公司 | Device for preheating to-be-sintered raw materials with steam and sludge |
| CN107012319A (en) * | 2017-05-12 | 2017-08-04 | 山东钢铁股份有限公司 | One kind is used to sinter digestion steel-smelting sewage sludge system and method |
-
2007
- 2007-06-08 CN CNA2007100116065A patent/CN101319274A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856658A (en) * | 2010-06-01 | 2010-10-13 | 云南大红山管道有限公司 | Method for dredging soft blockage of long-distance iron ore concentrate pipeline |
| CN101856658B (en) * | 2010-06-01 | 2011-09-07 | 云南大红山管道有限公司 | Method for dredging soft blockage of long-distance iron ore concentrate pipeline |
| CN105714104A (en) * | 2015-12-09 | 2016-06-29 | 涞源县奥宇钢铁有限公司 | Device for preheating to-be-sintered raw materials with steam and sludge |
| CN107012319A (en) * | 2017-05-12 | 2017-08-04 | 山东钢铁股份有限公司 | One kind is used to sinter digestion steel-smelting sewage sludge system and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081210 |