CN203530347U - Granulation-pump-free high temperature slag water quenching system - Google Patents
Granulation-pump-free high temperature slag water quenching system Download PDFInfo
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- CN203530347U CN203530347U CN201320681350.XU CN201320681350U CN203530347U CN 203530347 U CN203530347 U CN 203530347U CN 201320681350 U CN201320681350 U CN 201320681350U CN 203530347 U CN203530347 U CN 203530347U
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Abstract
The utility model discloses a granulation-pump-free high temperature slag water quenching system which comprises a granulation box, a slag water separation device, a water tank and the like. The operation process comprises the following steps: a slag water mixture formed by high temperature slag water quenching is separated by the slag water separation device, the separated water is conveyed to the water tank directly communicated with the granulation box and circularly used as cooling water, and the height of water between the water tank and the granulation box is big enough to enable the pressure of the cooling water in the granulation box to be more than the lower limit value for the normal operation of the granulation box. Preferentially, the water tank requires certain volume or a dividing wall type heat exchanger is mounted on the water tank. According to the granulation-pump-free high temperature slag water quenching system, the granulation water pressure target value and circular operation water temperature control can be conveniently achieved to achieve the effects of energy conservation, environmental protection and the like without the help of the forced-air cooling.
Description
Technical field
The utility model discloses a kind of high temperature furnace slag water quenching technology, particularly a kind of without granulation pump type high temperature furnace slag water quenching system, belong to technical field of metallurgy industry.
Background technology
At present, high temperature furnace slag water quenching technology is mainly comprised of granulation case, granulation pond, separating device for water with dregs, cooling tower, water circulation system etc.High temperature furnace slag, from flowing to granulation case front end, is sprayed water coolant rapid cooling water by granulation case and quenches into grain slag, forms slag-water slurry, and slag-water slurry is separated with water by grain slag by separating device for water with dregs, and grain slag is transported to stockyard, and water recycles after cooling.
For example, but there is many defects in aforementioned technique:
(1) granulation water provides power by impeller pump; and the fluctuations in discharge scope of slag is larger in smelting process; system operated by rotary motion separate unit moves and two kinds of modes of two parallel runnings, adds the otherness of performance of centrifugal pump parameter, and granulation case actual hydraulic pressure and target value deviation are more.For guaranteeing that hydraulic pressure is not less than the lower value of granulation case normal operation, generally need to strengthen the type selecting of granulation pump, cause system energy consumption higher, and bring the problems such as grain slag granularity is little, pulp water inferior separating effect, increase system wear.For example, processing requirement granulation water pressure > 0.2Mpa, and the pressure of granulation pump reaches 0.35Mpa.
(2) granulation supplies water and granulation backwater two-stage power, and system energy consumption is higher;
(3) water system cooling power is inadequate, and in cycle operation process, water temperature rising trend is obvious, and what have even reaches more than 90 ℃, and in slag, contained sulfide emission is not effectively controlled.
Utility model content
Main purpose of the present utility model is for the deficiencies in the prior art, provides a kind of without granulation pump type high temperature furnace slag water quenching technology and system, and its granulation water supply and cycle operation water temperature that can realize pressure-stabilisation is controlled, and reaches energy-conserving and environment-protective texts.
For realizing above-mentioned utility model object, the utility model has adopted following technical scheme:
Without a granulation pump type high temperature furnace slag water quenching system, comprising:
Granulation case, thus in order to spray water quench high temperature furnace slag, form slag-water slurry,
Separating device for water with dregs, in order to slag-water slurry is separated into grain slag and water, and,
Pond, in order to collect isolated water in slag-water slurry;
Wherein, described pond is directly communicated with granulation case through pipeline valve group, and the height of water between described pond working control liquid level and granulation case is enough to make cooling water pressure in granulation case more than the lower value of granulation case normal operation.
As one of comparatively preferred embodiment, described pond needs certain capacity, limit one working cycle water system cycle index so that granulation case water temperature is no more than 60 ℃; And/or, in described pond, recuperative heat exchanger is installed, so that granulation case water temperature is no more than 60 ℃.
Further, the described shot tank that also comprises collecting slag-water slurry without granulation pump type high temperature furnace slag water quenching system, described shot tank is communicated with separating device for water with dregs.
Further, described separating device for water with dregs is placed in water collecting basin top, and described water collecting basin is inputted pond through back water pump by water.
Further, in described water quenching system, containing forced draught cooling arrangement, granulation water cooling realizes in system no-load run, or and recuperative heat exchanger is installed.
Further, described separating device for water with dregs comprises dewatering drum.
Without a granulation pump type high temperature furnace slag water quenching technology, comprising:
By the slag-water slurry being formed by high temperature furnace slag shrend with separating device for water with dregs separation after; get pond that the input of isolated water is directly communicated with granulation case as cooling water circulation use, and make the height of water between pond working control liquid level and granulation case be enough to make cooling water pressure in granulation case more than the lower value of granulation case normal operation.
As one of comparatively preferred embodiment, described pond needs certain capacity, limit one working cycle water system cycle index so that granulation case water temperature is no more than 60 ℃;
And/or, will in described pond, recuperative heat exchanger be installed, to control granulation case water temperature, be no more than 60 ℃.
Further, this technique specifically comprises:
Make high temperature furnace slag from the water coolant jet orifice corresponding position flowing to granulation case; and spray water quench high temperature furnace slag with granulation case; form slag-water slurry; with separating device for water with dregs, slag-water slurry is separated into grain slag and water again; grain slag be transported to stockyard thereafter; and by isolated water input pond, as cooling water circulation use.
Wherein, the cooling water flow of pond supply granulation case can change and regulate with the quantity of slag or water temperature.
Further, this technique also comprises: isolated water flows into after water collecting basin, then with back water pump input pond.
Below the principle of work of technical solutions of the utility model is described in more detail:
1, according to residues processing technique; granulation case hydraulic pressure requires as > 0.2Mpa, and this pressure is to be realized by granulation case height and pond working control liquid level difference, that is to say; by adding elevated basin; utilize nature pressure reduction, cancel granulation pump, thereby realize granulation case stable water pressure; with fluctuations in discharge, do not affect; granulation water enters water collecting basin after pulp water separation, and by back water pump input pond, granulation water forms circular flow.
2, the water storage that assurance system is enough, controls a heat operation granulation water cycle number of times, prevents water temperature accumulation rising too much.Granulation water cooling is to utilize ironmaking production intermittence feature, and while stopping slagging tap, furnace slag granulating system is in no-load run, and water temperature declines.Recuperative heat exchanger also can be installed, and that recirculated water is obtained is cooling.
Compared with prior art, the utility model at least tool have the following advantages:
(1) utilize waterhead, make granulation case operating pressure controlled,, with fluctuations in discharge impact, do not reduce grain slag fine particle, improve the effect of separating device for water with dregs, reduce system wear;
(2) cancel granulation working shaft, reduced power consumption, simplified technique;
(2) cancel forced draft cooling, reduced power consumption;
(3) the highest water temperature of system is no more than 70 ℃, and discharge of steam is controlled, is conducive to environmental protection;
(4) recirculated cooling water in pond has the function of accident water concurrently, can cancellation accident water tank.
(5) heat energy that interchanger obtains can be fully utilized.
Accompanying drawing explanation
Fig. 1 is a kind of without granulation pump type high temperature furnace slag water quenching technology schema in the utility model one preferred embodiment.
Embodiment
Below in conjunction with accompanying drawing and a preferred embodiment, the technical solution of the utility model is further described.
Related a kind of assemblies such as granulation case, shot tank, separating device for water with dregs, back water pump (also can be described as " granulation back water pump "), water collecting basin that comprise without granulation pump type high temperature furnace slag water quenching system in the utility model one preferred embodiment.
Consult shown in Fig. 1, a kind of blast furnace slag treatment process that system is carried out by this comprises following flow process:
High temperature furnace slag (also can be described as " red the slag ") gravity flow that blast furnace produces drops to sluice, the granulation case that is installed in sluice end sprays water coolant rapid cooling water and quenches, red slag is by granulation, form slag-water slurry and pour shot tank, conduit through shot tank bottom (for example enters separating device for water with dregs again, dewatering drum), the dewatering drum that slag-water slurry is equipped with sieve plate rotates and upgrades filtration, when dewatering drum forwards high point to, grain slag falls into and on the rotary conveyor in dewatering drum, is transported to grain slag stockyard (being cinder yard), then by automobile or train, transported, the water that dewatering drum filters is collected in water collecting basin (also can be described as " hot water tank "), water in hot water tank pumps into pond by granulation back water pump (being called for short " back water pump "), water level in water pool need to reach a certain height, rely on the drop of water level in water pool and granulation case, granulation case sprays water coolant and quenches to flowing into the red pulp water of sluice, and water coolant forms circular flow.
Wherein, pond need to reach certain capacity, and once circulation just can meet a heat operation substantially, and after tap cinder finishes, slag disposal system no-load run, in granulation water cycle process lowers water temperature.Certainly, recuperative heat exchanger also can being installed, that recirculated water is obtained is cooling.
It is to be noted; above-described embodiment is only explanation technical conceive of the present utility model and feature; its object is to allow person skilled in the art can understand content of the present utility model and implement according to this; can not limit protection domain of the present utility model with this; all equivalences of doing according to the utility model spirit change or revise, within all should being encompassed in protection domain of the present utility model.
Claims (6)
1. without a granulation pump type high temperature furnace slag water quenching system, comprising:
Granulation case, thus in order to spray water quench high temperature furnace slag, form slag-water slurry,
Separating device for water with dregs, in order to slag-water slurry is separated into grain slag and water,
It is characterized in that, it also comprises:
Pond, in order to collect isolated water in slag-water slurry,
Wherein, described pond is directly communicated with granulation case by pipeline valve group, and the height of water between described pond working control liquid level and granulation case is enough to make cooling water pressure in granulation case more than the lower value of granulation case normal operation.
2. according to claim 1ly without granulation pump type high temperature furnace slag water quenching system, it is characterized in that, described pond needs certain capacity, limit one working cycle water system cycle index so that granulation case water temperature is no more than 60 ℃.
3. according to claim 1 and 2ly without granulation pump type high temperature furnace slag water quenching system, it is characterized in that, in described pond, recuperative heat exchanger is installed.
4. according to claim 1ly without granulation pump type high temperature furnace slag water quenching system, it is characterized in that, it also comprises collecting the shot tank of slag-water slurry, and described shot tank is communicated with separating device for water with dregs.
5. according to claim 1ly without granulation pump type high temperature furnace slag water quenching system, it is characterized in that, described separating device for water with dregs is placed in water collecting basin top, and described water collecting basin is inputted pond through back water pump by water.
According to described in any one in claim 1-2,4-5 without granulation pump type high temperature furnace slag water quenching system, it is characterized in that, described separating device for water with dregs comprises dewatering drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320681350.XU CN203530347U (en) | 2013-10-30 | 2013-10-30 | Granulation-pump-free high temperature slag water quenching system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320681350.XU CN203530347U (en) | 2013-10-30 | 2013-10-30 | Granulation-pump-free high temperature slag water quenching system |
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| CN203530347U true CN203530347U (en) | 2014-04-09 |
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| CN201320681350.XU Expired - Fee Related CN203530347U (en) | 2013-10-30 | 2013-10-30 | Granulation-pump-free high temperature slag water quenching system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103525958A (en) * | 2013-10-30 | 2014-01-22 | 江苏沙钢集团有限公司 | Non-granulation-pump type high temperature slag water quenching technology and system |
| CN107528524A (en) * | 2017-08-03 | 2017-12-29 | 武汉钢铁有限公司 | The regulator control system and regulation and control method of INBA rotary drum rotating speeds |
| CN110585767A (en) * | 2019-10-22 | 2019-12-20 | 中冶赛迪工程技术股份有限公司 | Internal rotation sedimentation device and application thereof |
-
2013
- 2013-10-30 CN CN201320681350.XU patent/CN203530347U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103525958A (en) * | 2013-10-30 | 2014-01-22 | 江苏沙钢集团有限公司 | Non-granulation-pump type high temperature slag water quenching technology and system |
| CN103525958B (en) * | 2013-10-30 | 2016-06-15 | 江苏沙钢集团有限公司 | A kind of without granulation pump-type high temperature furnace slag water quenching technology and system |
| CN107528524A (en) * | 2017-08-03 | 2017-12-29 | 武汉钢铁有限公司 | The regulator control system and regulation and control method of INBA rotary drum rotating speeds |
| CN107528524B (en) * | 2017-08-03 | 2020-05-05 | 武汉钢铁有限公司 | System and method for regulating and controlling rotating speed of INBA rotary drum |
| CN110585767A (en) * | 2019-10-22 | 2019-12-20 | 中冶赛迪工程技术股份有限公司 | Internal rotation sedimentation device and application thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20161030 |
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