CN2743362Y - Water hardening treatment device of blast furnace fused slag - Google Patents
Water hardening treatment device of blast furnace fused slag Download PDFInfo
- Publication number
- CN2743362Y CN2743362Y CNU2004200808246U CN200420080824U CN2743362Y CN 2743362 Y CN2743362 Y CN 2743362Y CN U2004200808246 U CNU2004200808246 U CN U2004200808246U CN 200420080824 U CN200420080824 U CN 200420080824U CN 2743362 Y CN2743362 Y CN 2743362Y
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- water
- slag
- blast furnace
- settling tank
- processing unit
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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
Abstract
The utility model belongs to the molten slag process, in particular to a blast furnace molten slag processing device. A water slag gutter is connected with a nodulizer and a water slag slot; the lower part of the water slag slot is connected with a communicating pipe; a dispenser buffer slot connected with the communicating pipe extends into a rotary drum filter; an in-tube conveyer belt is engaged with a transporting conveyer belt, and is engaged with a completed product bin; a settling tank and an impounding reservoir are provided beneath the revolving drum filter; the two tanks are connected by overflow holes arranged on the tank walls; the settling tank is provided with a slag removing means, and the impounding tank is directly connected with the nodulizer by connecting pipelines, a valve and a slag flushing pump. Compared with the prior art, the auxiliary devices are cancelled such as cooling tower, air cooling device, etc. The configuration of the equipment and the facility is simplified and reasonable; the investment and the operation cost are low; the slag flushing water obtains the purifying, the equipment attrition is reduced, the pipeline blocking is avoided, and the inspection quantity is reduced; the equipment failure rate is low, and the punching rate of the water slag can reach more than 99%, which is in convenient for the smooth running and the stable production of the blast furnace; the slag flushing water and the furnace sewage are cyclically used in closed circuit to obtain the 'zero 'discharging of the sewage and the little pure water complement; the water resource is saved.
Description
Technical field
The utility model genus melts slag to be handled, and relates in particular to iron-smelting blast furnace slag treatment unit.
Background technology
Blast furnace slag is the significant by-products that ironmaking is produced, and is rich in SiO in the slag
2, Al
2O
3, CaO, MgO etc., be the high quality raw material of producing cement through the grain slag of shrend granulation.Slag treatment directly influences blast furnace ironmaking production, and slag treatment is good, punching out rate height, and smooth operation of furnace, stable yields, economic benefit and environmental benefit are good; If slag treatment is bad, cause the wasting of resources, contaminate environment causes the blast furnace checking even is forced to damping down stopping production.In the prior art INBA method comprise in Punched box, water slag groove, grain slag groove, communicating pipe, divider, drum filter, the tube conveyor with treatment unit and transport conveyor, the funnel that catchments, hot tub, cooling pump, cooling tower and affiliated facility, slag flushing pump, be connected successively.During flushing cinder, blast furnace slag flows into Punched box by the slag ditch, High-Pressure Water shrend punching out through the Punched box ejection becomes grain slag, along with current enter water slag groove, grain slag groove, communicating pipe, divider, fall into drum filter and dewater, the grain slag after the dehydration is fallen on the interior conveyor and is transported through the transhipment conveyor.Flushing cinder water under filtering flows into hot tub through the funnel that catchments, and sends into cooling tower by cooling pump and carries out air-cooled cooling, and the cooling back is delivered to Punched box through the slag flushing pump pressurization again and used for flushing cinder to below 60 ℃, replenishes flushing cinder water and accident water with industrial water purification.This device dehydrating effect is good, mechanize, level of automation height, and the stokehold operating environment is good.But have obvious defects: the equipment of configuration and facility complexity, unreasonable, take up an area of many, investment is big, working cost is high; The particulate grain slag is many in the flushing cinder water, and equipment attrition is serious, accumulated slag in cooling tower, hot tub, the funnel that catchments, and blocking pipe, the equipment failure rate height, blowing rate of slag is low, and the maintenance amount is big, and scarfing cinder labour intensity is big, influences blast furnace production.Flushing cinder make up water consumption is big, needs to replenish waste water resource with industrial water purification.
Summary of the invention
In order to overcome the defective that prior art exists, the purpose of this utility model is to provide a kind of equipment and facilities Allocation is reasonable, simplification, and investment reduces, and working cost is low, and equipment failure rate is low; The blowing rate of slag height, granulation is effective, the blast furnace cinder water quenching processing unit that the flushing cinder water cycle is used.
Blast furnace cinder water quenching processing unit comprises conveyor in pelletizer, water slag groove, grain slag groove, communicating pipe, divider dashpot, drum filter, the tube, transhipment conveyor, settling tank, water reservoir, slag removing mechanism, slag flushing pump, valve and connecting tube.Water slag groove connects pelletizer and grain slag groove, and grain slag groove top is provided with the steam discharge cover, and the bottom connects pipe, and the divider dashpot that is connected with communicating pipe stretches in the drum filter, and conveyor is connected mutually with the transhipment conveyor in the tube, is connected to finished bin.Be characterized in cancelling cooling tower and auxiliary facility, settling tank, water reservoir are set under drum filter, two ponds are communicated with by the overflow weir that is located on the pool wall; Slag removing mechanism is set on the settling tank, and water reservoir directly is connected with pelletizer by pipe connection valve, slag flushing pump.During flushing cinder; red-hot blast furnace slag is by the slag ditch pelletizer of flowing through; the constant voltage high speed water jet impact slag of pelletizer ejection is with the slag water quenching granulation; grain slag flows to the further broken granulation of grain slag groove and leaches the bulk slag along water slag groove with current; water vapor is discharged by the steam discharge cover; grain slag flows into drum filter by communicating pipe and connected divider dashpot again and dewaters, and drum filter is by the rotary drum actuator drives.Grain slag is fallen on the interior conveyor, is transported to finished bin through the transhipment conveyor; The flushing cinder water filter that has the particulate grain slag is deposited in particulate grain slag at the bottom of the pond and is pulled out by slag removing mechanism and transport in settling tank, and the flushing cinder water of post precipitation flows into water reservoir by overflow weir, directly delivers to the pelletizer nozzle with the slag flushing pump pressurization again, so recycles.
The utility model compared with prior art, its advantage is:
1, this appliance arrangement and facilities Allocation simplification, reasonable, investment reduces significantly, working cost is low;
2, flushing cinder water is purified, and has alleviated equipment attrition, avoids line clogging, and service life of equipment prolongs, and the maintenance amount reduces, and saves lot of materials and labour cost, and scarfing cinder is convenient, reduces labor intensity;
3, breakdown rate is low, and blowing rate of slag reaches more than 99%, helps smooth operation of furnace, stable yields;
4, the closed cycle of flushing cinder water is used, and accomplishes sewage " zero " discharging, replenishes water purification less, has saved water resources, the protection environment.
2500 cubic metres of blast furnaces in our company successively adopt INBA method treatment unit and this device,
The equipment configuration reduces 30%, and a year power consumption is reduced to 3,550,000 KWh by 5,550,000 KWh; Prolong equipment life more than one times, save spare part, material and the labour cost of half maintenance; Water saving, ton slag consume the clear water amount and reduce to 0.4 cubic metre by 0.9 cubic metre, avoid the flushing cinder environmental pollution by water; Equipment failure rate significantly reduces, and blowing rate of slag improves more than 10%, guarantees smooth operation of furnace, stable yields effectively, and economic benefit is remarkable especially.
Description of drawings
In conjunction with the accompanying drawings the utility model is described in further detail.
Fig. 1, blast furnace cinder water quenching processing unit synoptic diagram.
Fig. 2, blast furnace cinder water quenching processing unit floor map.
Fig. 3, blast furnace cinder water quenching processing unit Punched box structural representation.
Fig. 4, blast furnace cinder water quenching processing unit grain slag groove structural representation.
Fig. 5, blast furnace cinder water quenching processing unit slag removing mechanism synoptic diagram.
Fig. 6, blast furnace cinder water quenching processing unit rotary drum transmission mechanism synoptic diagram.
Embodiment
From Fig. 1 to Fig. 2 as can be seen the utility model embodiment be by pelletizer 1; water slag groove 2; grain slag groove 3; communicating pipe 4; divider dashpot 5; drum filter 6; conveyor 7 in the tube; transhipment conveyor 8; grab-crane 9; chute funnel 10; settling tank 11; water reservoir 12; electricity liquid gate valve 13; slag flushing pump 14; relief valve 15; dried pit watering valve 16; flushing cinder gate valve 17; rotary drum transmission mechanism 18; pump hole 19; furnace roof washing water return water pipe 20; dried pit backwater ditch 21; industry water purifying valve 22 is formed.Pelletizer is provided with water slag groove 21 time, connects pelletizer 1 and grain slag groove 3, and grain slag groove top is provided with the steam discharge cover, the bottom connects pipe 4, the divider dashpot 5 that is connected with communicating pipe 4 stretches in the drum filter 6, and conveyor 7 is connected mutually with transhipment conveyor 8 in the tube, is connected to finished bin; Drum filter is provided with settling tank 11 for 6 times, water reservoir 12, two ponds are communicated with by the overflow weir that is located on the pool wall; Settling tank 11 tops are provided with grab-crane 9, and are located at a chute funnel 10 of interior conveyor 7 tops and are connected mutually; Water reservoir 12 by pipe connection electricity liquid gate valve 13, be contained in slag flushing pump 14, the flushing cinder gate valve 17 in pump hole 19, directly be connected with pelletizer 1.Thereby realize the flushing cinder flush slag, recycle, recycle.
In conjunction with Fig. 3 as can be seen, pelletizer 1 is semicircle casing, dividing plate 23 is set in the case, dividing plate separates to become upward intake antrum 24, following intake antrum 26 with inner chamber, the water spray orifice plate of last intake antrum 24 is provided with upper strata spout hole 25, the water spray orifice plate of intake antrum 26 is provided with lower floor's spout hole 27 and draws cinder hole 28 down, lower floor's spout hole flow accounts for water spray total flux more than 2/3, stops that slag becomes piece to crash into bottom of trench and condenses; All spout holes are all inlayed anti-wearing liner, can draw the tamper of getting on the water spray orifice plate easily by drawing cinder hole 28.When slag was flowed through pelletizer 1, flushing cinder water was made slag water quenching, chilling, is granulated into grain slag by the spout hole of intake antrum up and down, the constant voltage high velocity flow of drawing the cinder hole ejection, and grain slag is along with current flow to grain slag groove 3 through water slag groove 2.
In conjunction with Fig. 4 as can be seen grain slag groove 3 substructures be a circular channels, the mounting bracket 30 that inclination is set in the groove is connected with base plate 31, backwater baffle plate 34, pulp water bucket and grid 35, the impingement plate 32 of difference assembly unit piecemeal on support 30 and the base plate 31, all inlay wear member 33 on impingement plate 32 working faces, as wear-resistant ceramic or hard alloy blocks, spraying abrasion-proof pottery on grid 35 working faces that the pulp water bucket is provided with.Grain slag enters grain slag groove 3 by water slag groove hole 29, behind the impingement plate 32 that grain slag torrent bumps tilts, reflex on the horizontal impingement plate immediately, circle round through backwater baffle plate 34, that grain slag circles round in the grain slag groove is mobile, collision, friction, further broken, cooling, it is even that granularity more becomes.Impingement plate 32 piecemeal assembly units, in light weight, be convenient to dismounting, save material.Grain slag overflows to the pulp water bucket after the grain slag groove circles round, through grid 35 coarse filtration, enter communicating pipe 4, divider dashpot 5 and drum filter 6 dewater, and grain slag conveyor 7 and transhipment conveyor 8 in tube are transported to finished bin.Flushing cinder muddy water under filtering contains a large amount of particulate grain slags, falls into settling tank 11.
In conjunction with Fig. 5 as can be seen, settling tank 11 is positioned at drum filter 6 below parts, is arranged to slope, half inclined-plane shape, and settling tank 11 tops are provided with grab-crane 9, are connected mutually with the chute funnel 10 of 7 tops of conveyor in the tube.After the flushing cinder muddy water fell, the particulate grain slag precipitated at the bottom of flowing into the pond along the slope, and grab-crane 9 cleaning in time is deposited in the particulate grain slag at the bottom of the pond, poured chute funnel 10 into and was transported by conveyor in the tube 7, transhipment conveyor 8.2500 cubic metres of blast furnace production practice show, can clean out 40 tons of thin slags every day.Eliminate the particulate grain slag and piled up at the bottom of the pond, purified flushing cinder water, alleviated the wearing and tearing of pipeline, valve and equipment greatly, avoided line clogging." purifying waste water " overflow that precipitated is to water reservoir 12.Research and production practice show that the effect that 1500 ℃ slag uses about 90 ℃ hot water and the cold water below 60 ℃ to carry out the shrend chilling is basic identical, and this device has been cancelled cooling tower and auxiliary facility, and the flushing cinder water is directly supplied with in employing " purifying waste water ".Slag flushing pump 14 both sides are provided with electric liquid gate valve 13, low-tension side and water reservoir 12 pipe connection, and the flushing cinder water is supplied with, about about 90 ℃ of water temperature by flushing cinder gate valve 17 direct and pelletizer 1 pipe connection in the high-tension side.Slag flushing pump 14 high-tension sides also with dried pit watering valve 16, relief valve 15 pipe connection, supplying with dried slag watering water, or reduce the pressure of flushing cinder water.Accident water and flushing cinder make up water all are connected to Punched box 1 both sides with industrial pure water pipe through valve 22, are communicated with standbyly with water slag groove 2, and relief valve is side and water reservoir 12 pipe connection in addition.Simplify flushing cinder water treating equipment and facility, reduced investment and working cost significantly, reduced equipment failure rate.
The utility model adopts the spout hole quantity of regulating relief valve 15 and Punched box 1, regulates the flow and the pressure of flushing cinder water, the granularity and the quality of control grain slag finished product.
The pond face absolute altitude of settling tank 11, water reservoir 12 is lower than the absolute altitude of stokehold terrace and dried pit, blast furnace furnace roof washing backwater ditch 20, dried pit backwater ditch 21, stokehold terrace all are connected with settling tank 11 towards Xian ditch, furnace roof washing water, dried slag watering backwater, terrace wash-down water all import in the settling tank 11, recycled, accomplish sewage " zero " discharging, replenish industrial water purification less.Save water resources, protected environment.
Rotary drum transmission mechanism 18 is connected with minor sprocket 38 by electric motor 40, step-down gear 39 as can be seen from Figure 6, and hinge wheel 36 is connected with drum filter 6, and chain 37 is loaded on hinge wheel 36 and the minor sprocket 38, and tightening pulley is pressed on the chain 37.It is reasonable, simple and practical to dispose, stable and reliable operation, rare fault.
Claims (6)
1; blast furnace cinder water quenching processing unit; water slag groove (2) connects pelletizer (1) and grain slag groove (3); grain slag groove top is provided with the steam discharge cover; the bottom connects pipe (4); the divider dashpot (5) that is connected with communicating pipe (4) stretches in the drum filter (6); conveyor (7) is connected mutually with transhipment conveyor (8) in the tube; receive finished bin; it is characterized in that being provided with under the drum filter (6) settling tank (11); water reservoir (12); two ponds are communicated with by the overflow weir that is located on the pool wall; settling tank is provided with slag removing mechanism on (11), and water reservoir (12) is by connecting tube; valve; slag flushing pump (14) directly is connected with pelletizer (1).
2, blast furnace cinder water quenching processing unit according to claim 1; it is characterized in that pelletizer (1) inner route clapboard (23) separates to become upward intake antrum (24), following intake antrum (26); the water spray orifice plate of last intake antrum (24) is provided with upper strata spout hole (25); the water spray orifice plate of following intake antrum (26) is provided with lower floor's spout hole (27) and draws cinder hole (28); lower floor's spout hole flow accounts for total flux more than 2/3, and all spout hole intraoculars are all inlayed anti-wearing liner.
3, according to the described blast furnace cinder water quenching processing unit of claim 1, it is characterized in that being provided with in the grain slag groove (3) inclination mounting bracket (30) is connected with base plate (31), support (30) and base plate (31) are gone up assembly unit piecemeal impingement plate (32) respectively, all inlay wear member (33) on the working face of impingement plate (32); Spraying abrasion-proof pottery on the grid of pulp water bucket (35) working face.
4, blast furnace cinder water quenching processing unit according to claim 1, it is characterized in that settling tank (11) is positioned at drum filter (6) below part and is arranged to slope, half inclined-plane shape, settling tank (11) top is provided with band grab-crane (9), with the corresponding linking of chute funnel (10) of conveyor in the tube (7) top; Slag flushing pump (14) both sides are provided with electric liquid gate valve (13); low-tension side and water reservoir (12) pipe connection; the high-tension side is direct and pelletizer (1) pipe connection by flushing cinder gate valve (17); the high-tension side also with dried pit watering valve (16), relief valve (15) pipe connection, relief valve (15) is side and water reservoir (12) pipe connection in addition.
5, blast furnace cinder water quenching processing unit according to claim 1, the ground elevation that it is characterized in that settling tank (11), water reservoir (12) is lower than stokehold terrace absolute altitude, dried pit absolute altitude, blast furnace furnace roof washing pipe (20), dried pit backwater ditch (21), stokehold terrace flushing ditch are connected with settling tank (11).
6, blast furnace cinder water quenching processing unit according to claim 1, it is characterized in that the rotary drum transmission rig connects step-down gear (39) by electric motor (40) and is connected with minor sprocket (38), hinge wheel (36) is connected with drum filter (6), chain (37) is loaded on hinge wheel (36) and the minor sprocket (38), and tightening pulley is pressed on the chain (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200808246U CN2743362Y (en) | 2004-11-05 | 2004-11-05 | Water hardening treatment device of blast furnace fused slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200808246U CN2743362Y (en) | 2004-11-05 | 2004-11-05 | Water hardening treatment device of blast furnace fused slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2743362Y true CN2743362Y (en) | 2005-11-30 |
Family
ID=35633381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200808246U Expired - Lifetime CN2743362Y (en) | 2004-11-05 | 2004-11-05 | Water hardening treatment device of blast furnace fused slag |
Country Status (1)
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|---|---|
| CN (1) | CN2743362Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100343394C (en) * | 2004-11-05 | 2007-10-17 | 马鞍山钢铁股份有限公司 | Blast furnace cinder water quenching processing unit |
| CN102230037A (en) * | 2011-06-13 | 2011-11-02 | 武汉钢铁(集团)公司 | Method for controlling sand content of water body of blast furnace INBA circulating system and flow-limiting device thereof |
| CN103243187A (en) * | 2013-05-19 | 2013-08-14 | 山西太钢不锈钢股份有限公司 | Method and system for utilizing waste heat of blast furnace slag flushing water |
| CN107345262A (en) * | 2017-08-11 | 2017-11-14 | 扬州市顺达科技有限公司 | A kind of modified slag particle integrated system |
| CN108931134A (en) * | 2018-08-19 | 2018-12-04 | 湖南建勋环保资源科技发展有限公司 | Smelting furnace slag charge collection device |
-
2004
- 2004-11-05 CN CNU2004200808246U patent/CN2743362Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100343394C (en) * | 2004-11-05 | 2007-10-17 | 马鞍山钢铁股份有限公司 | Blast furnace cinder water quenching processing unit |
| CN102230037A (en) * | 2011-06-13 | 2011-11-02 | 武汉钢铁(集团)公司 | Method for controlling sand content of water body of blast furnace INBA circulating system and flow-limiting device thereof |
| CN103243187A (en) * | 2013-05-19 | 2013-08-14 | 山西太钢不锈钢股份有限公司 | Method and system for utilizing waste heat of blast furnace slag flushing water |
| CN107345262A (en) * | 2017-08-11 | 2017-11-14 | 扬州市顺达科技有限公司 | A kind of modified slag particle integrated system |
| CN107345262B (en) * | 2017-08-11 | 2022-11-11 | 扬州市顺达科技有限公司 | Improved generation slag granulation complete set system |
| CN108931134A (en) * | 2018-08-19 | 2018-12-04 | 湖南建勋环保资源科技发展有限公司 | Smelting furnace slag charge collection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20071017 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |