CN1962879A - Treatment system for blast-furnace slag - Google Patents
Treatment system for blast-furnace slag Download PDFInfo
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- CN1962879A CN1962879A CNA2006101022408A CN200610102240A CN1962879A CN 1962879 A CN1962879 A CN 1962879A CN A2006101022408 A CNA2006101022408 A CN A2006101022408A CN 200610102240 A CN200610102240 A CN 200610102240A CN 1962879 A CN1962879 A CN 1962879A
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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Abstract
The invention discloses a disposing system of blast furnace, which comprises the following parts: blast furnace slag water quenching and transmitting device, slag sediment pool, flushing cinder circulating device, slag-water separating and conveying device, wherein the slag sediment pool is composed of effluent pond, clean water pond, overflow channel, secondary filter slag pond and filter grid, which interconnect sequently; the overflow channel, secondary filter pond and clean water pond parallel; the overflow channel is shallower than effluent pond, clean water pond and secondary filter pond.
Description
Technical field
The present invention relates to the slag handling system that a kind of blast-furnace smelting is produced, belong to technical field of blast furnace ironmaking.
Background technology
The slag that blast-furnace smelting produces can be widely used for slakin cement, lagging material and other material of construction after treatment.Nowadays the blast furnace slag treating process that most of iron and steel enterprise adopted, comprise rotary drum evaporation (Yin Bafa and figure daraf(reciprocal of farad)), slag bath filtration method (end filter method), dehydration slot type (Lhasa method), promote Dewaterring (stirring cage method and HK method), good permanent method or the like, these technologies have characteristics separately, but himself weak point is more or less arranged.Adopt large-scale rotary drum that grain slag is carried out processed as Yin Bafa, separate to realize pulp water, this method treatment effect is good, automatic and mechanical degree height, the stokehold operating environment is good, but because the equipment complexity, investment is big, and the running cost height is applicable to newly-built large blast furnace usually.End filter method or settling tank method equipment are simple, Operation and Maintenance is relatively easy, it is existing medium and small blast furnace treatment of slag commonly used, its shortcoming is that floor space is big, band water is many in the slag, pulp water is dropped environment is polluted in the transportation, and owing to be with the quantity of slag big in the recirculated water, pipeline water pump serious wear.Because of the present circumstance, improve existing technology, make the blast-furnace slag treatment process have more practical, production efficiency is higher, maintenance cost is low, the characteristics of stable equipment operation, transformation has crucial meaning for existing installation.
Summary of the invention
Technical problem to be solved by this invention provides and a kind ofly invests to build, running cost is low, and process stabilizing is reliable, maintenance cost is low, the blast-furnace slag processing system of stable equipment operation.
The alleged problem of the present invention is solved by following technical scheme:
A kind of blast-furnace slag processing system, by blast-furnace slag shrend and e Foerderanlage, detritus pool and flushing cinder water circle device, pulp water separates and the outer shipping unit of grain slag constitutes, wherein detritus pool and flushing cinder water circle device comprise detritus pool, retention basin, hot water pump and cooling tower, its special feature is: described detritus pool is by muddy water pond 1, clean water basin 6, overflow ducts 3, secondary filter residue pond 4 and screen mat are formed, described muddy water pond, overflow ducts, secondary filter residue pond, clean water basin are communicated with successively, wherein, overflow ducts, secondary filter residue pond and clean water basin be arranged in parallel, and overflow ducts is shallower than the muddy water pond, clean water basin and secondary filter residue pond.
Above-mentioned blast-furnace slag processing system, described hot water pump 7 is arranged on clean water basin, is provided with screen mat 2 between described muddy water pond and overflow ducts one time, is provided with secondary filtration aperture plate 5 between secondary filter residue pond and clean water basin.
Above-mentioned blast-furnace slag processing system, described blast-furnace slag shrend and e Foerderanlage comprise sluice 8, the gradient D that described sluice leading portion is 10～20 meters is 15 °～45 °.
Above-mentioned blast-furnace slag processing system, described pulp water separates and the outer shipping unit of grain slag comprises excavator 11 and slag waggon 15, wherein excavator is grabbed bucket, and 12 bottoms and antetheca are provided with grab bucket draining comb 12-2, its sidewall is provided with arc Water tank 12-1, draining combed 18 at the bottom of described slag waggon body bottom was provided with the railway carriage or compartment, corresponding position, draining comb position is provided with surplus water collection box 16 at the bottom of bottom, compartment and railway carriage or compartment, and surplus water collection box bottom is provided with water discharging valve 17.
Principal feature of the present invention is as follows: 1. the detritus pool design is unique, and recirculated water is not with slag.Detritus pool of the present invention is made up of muddy water pond, clean water basin, overflow ducts, secondary filter residue pond, is not with slag for water base behind the process secondary filter residue in the clean water basin, the water purification recycle in the clean water basin, and pipeline, water pump wear and tear little, and service life of equipment is long, and maintenance cost is low.2. system stability, the operating rate height, the sluice gradient of the present invention is big, and dredging of self is effective, can reduce or avoid to blast the accident potential of damage equipment because of band iron slag in the shrend process.In addition, increase the sluice gradient, under the prerequisite that guarantees the flushing cinder water pressure, can obviously reduce the water yield, experiment showed, that the water yield of 420m3/h both can satisfy 450m
3The production of blast furnace.3. pulp water separates and the outer shipping unit of grain slag adopts special draining grab bucket and is provided with the slag waggon of water treatment plant, surplus water collection box, realize that in comparatively simple, workable mode pulp water separates, surplus water in the slag is reclaimed in basic realization 100%, when having saved great amount of water resources, effectively avoided the pollution of sewage to environment.4. equipment is simple, is easy to safeguard, reduces energy consumption.This technology has reduced the back flushing operation of traditional burner residues processing technique, and equipment is more simple, and energy consumption reduces greatly.Based on above-mentioned advantage, the present invention is for the iron-smelting blast furnace of existing installation transformation or total arrangement anxiety, and a kind of preferred version of can yet be regarded as also has good reference for newly-built medium and small blast furnace and is worth.
Description of drawings
Fig. 1 is a detritus pool synoptic diagram of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1;
Fig. 4 is the C-C sectional view of Fig. 1;
Fig. 5 is the structural representation of excavator;
Fig. 6 is that the E of Fig. 5 is to view;
Fig. 7 is the structural representation of slag waggon;
Fig. 8 is the vertical view of Fig. 7.
Label is expressed as follows in the accompanying drawing: 1. muddy water pond; 2. screen mat; 3. overflow ducts; 4. secondary filter residue pond; 5. secondary filtration aperture plate; 6. clean water basin; 7. hot water pump; 8. sluice; 11. excavator; 12. grab bucket; 12-1. arc Water tank; 12-2. the grab bucket draining is combed; 15. slag waggon; 16. surplus water collection box; 17. water discharging valve; 18. draining is combed at the bottom of the railway carriage or compartment.
Embodiment
Blast-furnace slag processing system of the present invention, blast-furnace slag shrend and e Foerderanlage, detritus pool and flushing cinder water circle device, pulp water separate and grain slag outside aspect such as shipping unit carried out the many places improvement.Below in conjunction with accompanying drawing each improvements is described in further detail.
Blast-furnace slag shrend and e Foerderanlage comprise slag ditch and sluice, and blast-furnace slag flows to the flushing cinder point place of slag ditch end, and the water with certain pressure and flow impacts slag and the shrend fragmentation enters sluice 8.Referring to Fig. 1, Fig. 2,10～20 meters gradient D of the leading portion of sluice 8 of the present invention are advisable with 15 °～45 °, should increase the sluice leading portion gradient according to the scene layout as far as possible, be beneficial to improve flow velocity, because the sluice leading portion gradient is big, flow velocity is greatly improved, and makes that like this dredging of system itself is effective, and can reduce the water yield, saved great amount of water resources.
Referring to Fig. 1～Fig. 4, detritus pool is an important improvement of the present invention, detritus pool is made up of muddy water pond 1, clean water basin 6, overflow ducts 3, secondary filter residue pond 4 and screen mat, muddy water pond, overflow ducts, secondary filter residue pond, clean water basin are communicated with successively, overflow ducts, secondary filter residue pond and clean water basin be arranged in parallel, and overflow ducts is shallower than muddy water pond, clean water basin and secondary filter residue pond.Next door between muddy water pond and the clean water basin is higher than overflow ducts, slag-water slurry is in sluice enters muddy water pond 1, can't directly enter clean water basin, need after a screen mat 2 filters, to flow along overflow ducts 3 again, the terminal secondary filter residue pond 4 that is communicated with of overflow ducts, but pulp water is at this secondary filtration sediment, then, current turn to suddenly and flow to clean water basin 6 through secondary filtration aperture plate 5, the secondary filter residue pond of the unexpected turning point of current, be deeper than 300～500 millimeters of overflow ducts, a small amount of thin slag deposits of carrying in the water is regularly carried out the labor cleaning and is got final product in this bottom, pond.The current that flow to clean water basin through said process have been water purification, draw back retention basin by hot water pump 7, carry the slag runner recycle of backwashing through slag flushing pump again after cooling tower cools off.Substantially be not with slag according to the method described above in the recirculated water of Chu Liing, recirculated water equipment such as pipeline water pump are not easy to wear, and prolong work-ing life, and attended operation is easy.
Pulp water separates and the outer shipping unit of grain slag is another important improvement that the present invention states, it comprises excavator 11 and slag waggon 15, pulp water separates and muck haulage band water waste water resource and problem of environment pollution caused in order to solve, and the present invention improves traditional excavator and slag waggon.Referring to Fig. 5, Fig. 6, grab bucket 12 bottoms and antetheca place at excavator 11 is provided with grab bucket draining comb 12-2, its sidewall is provided with arc Water tank 12-1, excavator is in dragging for the slag operation, and moisture can flow back in the slag bath by draining comb and arc Water tank in the slag, and slag is then stayed in the grab bucket.In dragging for the slag operation, grab bucket is adopted and is dragged for slag--20～40 seconds drainings pause--operating process of entrucking, makes moisture go out entrucking again by drop in the grab bucket.The grab bucket entry relies on the back flushing of relative movement realization to grabbing bucket between grab bucket and the water when grabbing slag, also can reduce this procedure of grab bucket back flushing.Referring to Fig. 7, Fig. 8, draining was combed at the bottom of the body bottom of slag waggon 15 was provided with the railway carriage or compartment, and corresponding position, draining comb position is provided with surplus water collection box 16 at the bottom of bottom, compartment and railway carriage or compartment, and surplus water collection box is provided with water discharging valve 17.Be loaded into the grain slag on the slag waggon, can carry out secondary filtration moisture in the compartment, the water that leaches flows into surplus water collection box 16, and when treating to load grain slag once more, Open valve inclines the water in the surplus water collection box and puts back to the muddy water pond.This improvement both can avoid transporting the environmental pollution by water that grain slag spills, the recyclable again water resources of utilizing.Show that by trial run water content approximately was 30% when grab bucket picked up grain slag,--pause--entrucking is operated to drag for slag through grab bucket, the water content that installs on the slag waggon is no more than 10%, cooperate the slag car that draws with drainage function, when slag was transported to the point of destination, the water content of slag was no more than 1%.Pulp water of the present invention separates and the outer shipping unit of grain slag, reaches 100% substantially and reclaims surplus water in the slag, in simple relatively mode, has solved the problem that grain slag separates and grain slag is carried draining, and great amount of water resources has not only been saved in this measure, has also avoided the pollution of sewage to environment.
Claims (4)
1. blast-furnace slag processing system, by blast-furnace slag shrend and e Foerderanlage, detritus pool and flushing cinder water circle device, pulp water separates and the outer shipping unit of grain slag constitutes, wherein detritus pool and flushing cinder water circle device comprise detritus pool, retention basin, hot water pump and cooling tower, it is characterized in that: described detritus pool is by muddy water pond (1), clean water basin (6), overflow ducts (3), secondary filter residue pond (4) and screen mat are formed, described muddy water pond, overflow ducts, secondary filter residue pond, clean water basin are communicated with successively, wherein, overflow ducts, secondary filter residue pond and clean water basin be arranged in parallel, and overflow ducts is shallower than the muddy water pond, clean water basin and secondary filter residue pond.
2. blast-furnace slag processing system according to claim 1, it is characterized in that: described hot water pump (7) is arranged on clean water basin, be provided with a screen mat (2) between described muddy water pond and overflow ducts, be provided with secondary filtration aperture plate (5) between secondary filter residue pond and clean water basin.
3. blast-furnace slag processing system according to claim 2 is characterized in that: described blast-furnace slag shrend and e Foerderanlage comprise sluice (8), and the gradient D that described sluice leading portion is 10～20 meters is 15 °～45 °.
4. according to claim 1 or 2 or 3 described blast-furnace slag processing systems, it is characterized in that: described pulp water separates and the outer shipping unit of grain slag comprises excavator (11) and slag waggon (15), wherein excavator grab bucket (12) bottom and antetheca are provided with grab bucket draining comb (12-2), its sidewall is provided with arc Water tank (12-1), described slag waggon body bottom is provided with at the bottom of the railway carriage or compartment draining comb (18), corresponding position, draining comb position is provided with surplus water collection box (16) at the bottom of bottom, compartment and railway carriage or compartment, and surplus water collection box bottom is provided with water discharging valve (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101022408A CN1962879A (en) | 2006-12-08 | 2006-12-08 | Treatment system for blast-furnace slag |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101022408A CN1962879A (en) | 2006-12-08 | 2006-12-08 | Treatment system for blast-furnace slag |
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| CN1962879A true CN1962879A (en) | 2007-05-16 |
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| CNA2006101022408A Pending CN1962879A (en) | 2006-12-08 | 2006-12-08 | Treatment system for blast-furnace slag |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613189B (en) * | 2008-06-28 | 2012-03-21 | 金隆铜业有限公司 | Copper furnace slag granulating unit without discharging waste water |
| CN102942063A (en) * | 2012-11-22 | 2013-02-27 | 福建省工业设备安装有限公司 | Pulsing type dust-free non-discharge-water boiler cinder flushing system |
| CN104109724A (en) * | 2014-07-18 | 2014-10-22 | 永兴县强胜银业有限责任公司 | Smelting hot slag receiving device |
| CN107723396A (en) * | 2017-09-29 | 2018-02-23 | 四川德胜集团钒钛有限公司 | A kind of blast furnace slag flushing water circulation system |
| CN109173629A (en) * | 2018-09-30 | 2019-01-11 | 四川德胜集团钒钛有限公司 | A kind of production method and its process units with white clay desulfurization slurry |
| CN111686904A (en) * | 2020-07-13 | 2020-09-22 | 云南锡业股份有限公司锡业分公司 | Lean tin slag treatment system and treatment method without wastewater discharge |
| CN111714958A (en) * | 2020-05-12 | 2020-09-29 | 广东忠能科技集团有限公司 | Intelligent cooperative control system for treating slag |
| CN114011154A (en) * | 2021-11-24 | 2022-02-08 | 中冶京诚工程技术有限公司 | Blast furnace slag bottom filter tank system and blast furnace slag bottom filter method treatment process |
-
2006
- 2006-12-08 CN CNA2006101022408A patent/CN1962879A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613189B (en) * | 2008-06-28 | 2012-03-21 | 金隆铜业有限公司 | Copper furnace slag granulating unit without discharging waste water |
| CN102942063A (en) * | 2012-11-22 | 2013-02-27 | 福建省工业设备安装有限公司 | Pulsing type dust-free non-discharge-water boiler cinder flushing system |
| CN104109724A (en) * | 2014-07-18 | 2014-10-22 | 永兴县强胜银业有限责任公司 | Smelting hot slag receiving device |
| CN107723396A (en) * | 2017-09-29 | 2018-02-23 | 四川德胜集团钒钛有限公司 | A kind of blast furnace slag flushing water circulation system |
| CN109173629A (en) * | 2018-09-30 | 2019-01-11 | 四川德胜集团钒钛有限公司 | A kind of production method and its process units with white clay desulfurization slurry |
| CN111714958A (en) * | 2020-05-12 | 2020-09-29 | 广东忠能科技集团有限公司 | Intelligent cooperative control system for treating slag |
| CN111686904A (en) * | 2020-07-13 | 2020-09-22 | 云南锡业股份有限公司锡业分公司 | Lean tin slag treatment system and treatment method without wastewater discharge |
| CN114011154A (en) * | 2021-11-24 | 2022-02-08 | 中冶京诚工程技术有限公司 | Blast furnace slag bottom filter tank system and blast furnace slag bottom filter method treatment process |
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