CN207793311U - Slag steam dehumidifying of quenching disappears white device - Google Patents
Slag steam dehumidifying of quenching disappears white device Download PDFInfo
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- CN207793311U CN207793311U CN201721706857.0U CN201721706857U CN207793311U CN 207793311 U CN207793311 U CN 207793311U CN 201721706857 U CN201721706857 U CN 201721706857U CN 207793311 U CN207793311 U CN 207793311U
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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
- Y02P10/25—Process efficiency
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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 utility model is related to gas dehumidification technology, disappear white device more particularly to slag steam dehumidifying of quenching, its agent structure includes：Quench grit chamber, pipeline fan, afterheat heat exchanger, dehumidifying spray column, cooling tower, demister, steam chimney, air blower.The specific dehumidifying white process that disappears is：Grit chamber of quenching generates the largely high temperature containing air and quenches slag steam, after it is pressurizeed by pipeline fan, into afterheat heat exchanger heat release, temperature reduces, and referred to as medium temperature is quenched slag steam, into dehumidifying spray column, with the shower water countercurrent flow of low temperature, low temperature quenches slag steam again by demister, subsequently into steam chimney, when flowing up, and it is mixed with the surrounding air of more low temperature and low humidity.These surrounding airs are blown into from air blower into chimney, it is therefore an objective to by blending, reduce the unit water capacity of slag steam of quenching in chimney, when it is met by throat outflow with cold dry air, the white haze of generation is lighter or even invisible white haze, reaches the white purpose that disappears.
Description
Technical field
The utility model is related to gas dehumidification technology, disappear white device more particularly to slag steam dehumidifying of quenching.
Background technology
China is the big country of steel production, and the annual output of steel accounts for the 40% of Gross World Product.Either steel-making or refining
Iron will generate a large amount of clinker.Clinker is accompanied generation with steel, it is the byproduct of smelting iron and steel.
In Ferrous Metallurgy stove, 1400-1500 DEG C of high temperature furnace slag is generated, enters flushing cinder after cinder notch flows out, then through slag runner
When chute, with certain water, hydraulic pressure and the chute gradient, make water with slag stream at certain angle of cut, slag is burst by cold shock
At the qualified grain slag of certain particle size.
After pulp water separation, clinker is used as construction material；The washing slag water that heat exchange is carried out with high temperature furnace slag, into washing slag water
Pond, a large amount of steam that slag of quenching generates are fallen by steam smoke stack emission, and slag steam heat of quenching is about high temperature furnace slag net quantity of heat
60%.
Flushing cinder pond usually takes up an area thousands of square metres, and hot vapour is emptied above flushing cinder pond, and flushing cinder coolant-temperature gage is maintained at throughout the year
70-80 DEG C, be a huge potential thermal energy energy, if can effectively be used, such as utilizes the heat of washing slag water
Can, winter heats for residential block, can be not only that country saves a large amount of fuel, but also reduces carbon emission, protect environment.
Steel mill's blast furnace often smelts 1 ton of pig iron, and the heat that clinker loses accounts for total amount of heat income in 0.81GJ~0.87GJ
6.61%~7.5%, signature coal is the heat that 27.77kg~29.78kg burnings are released, and is calculated with slag ratio 0.44, slag damage per ton
The heat of mistake is about the heat that 63.9kg mark coal completely burneds are released.
Currently, it is mainly exhaust heat of slag flushing water recycling in terms of blast furnace slag heat recycling, is mainly used for the list for heating, having utilized
Position such as Shoudu Iron and Steel Co, Ji steel, Xuan Gang, Anshan iron and steel plant, this steel, Laigang, An Gangdeng enterprises.And it accounts for high temperature furnace slag net quantity of heat 60% and quenches slag steam
Heat is not utilized also completely at present.
In addition, unemployed slag steam of quenching is when discharge, chimney emits white cigarette, and the slag steam moisture that shows to quench is very big,
Acid mist is very likely formed, not only corrodes surrounding buildings equipment, damage also is brought to human respiratory system；Simultaneously as slag of quenching
Steam is not pure vapor, wherein being entrained with the impurity such as the dust generated when quenching slag, glass fiber, slag steam of quenching is seriously dirty
Contaminate environment, thus slag steam dehumidifying of quenching disappear it is white, it is not only energy saving, but also environment purification, be the very urgent major issue benefited the nation and the people.
Due to quenching, slag quantity of steam is very big, if carrying out white, its consumption that disappears that dehumidifies to slag steam of quenching using equipment such as dehumidifiers
Electricity is surprising, and expense is surprising, therefore, find low cost quench slag steam dehumidifying disappear white technology become the task of top priority.
Utility model content
One kind slag steam dehumidifying of quenching disappears white device, its agent structure includes：Quench grit chamber, pipeline fan, afterheat heat exchanger,
Dehumidify spray column, cooling tower, demister, steam chimney and some connecting pipes；
In the grit chamber of quenching of blast furnace, generates the largely high temperature containing air and quench slag steam, it is pressurizeed by pipeline fan
Afterwards, into afterheat heat exchanger heat release, become medium temperature and quench slag steam, enter back into dehumidifying spray column, flow from bottom to top, with low temperature
Shower water countercurrent flow, which part steam condensation Cheng Shui become low temperature and quench slag steam, then by demister, into steam cigarette
Chimney flows from bottom to top.
It is characterized in that：The disappear agent structure of white device of slag steam dehumidifying of quenching further includes air blower, it blows surrounding air
Into steam chimney, mixes with low temperature slag steam of quenching, flowed out together from throat.
The afterheat heat exchanger, it is the recuperative heat exchanger of a box-shaped, its side be high temperature quench slag steam into
Mouthful, the other side is that medium temperature is quenched slag steam (vapor) outlet, and waste heat recovery pipe is equipped in afterheat heat exchanger, for absorbing slag steam heat of quenching,
Waste heat recovery pipe has inlet and outlet.
The dehumidifying spray column, it is vertical tubular structure, its upper end sets water inlet, drip water plate and slag steam of quenching goes out
Mouthful, lower end is equipped with quench slag steam inlet and cistern；The outer water pump of cistern, is sent to cooling tower by the shower water of cistern and dissipates
Heat, the low temperature shower water after heat dissipation into dehumidifying spray column, then pass through leaching by the water inlet for the spray column top end socket that dehumidifies
Water plate, sprays from the top down；Medium temperature slag steam of quenching enters from dehumidifying spray column lower part slag steam inlet of quenching, and flows from bottom to top,
It exchanges heat with the shower water counter current contacting of low temperature, which part steam condensation Cheng Shui, medium temperature slag steam cooling of quenching becomes low temperature and quenches slag
Steam, finally, low temperature slag steam of quenching are flowed out from upper end quenching slag steam (vapor) outlet.
The demister, it includes multilayer shutter, collecting box and conduit, the plane of multilayer shutter and slag steam of quenching
Flow direction is vertical, and the water droplet in slag steam of quenching is hit on shutter surface, and one in steam tube wall is flowed downwardly into from shutter surface
A collecting box, then dehumidifying spray column is flowed back to by conduit.
The grit chamber of quenching, he is a slag steam generation source of quenching, and patent of the present invention is equally applicable to gas fired-boiler flue gas etc.
Contain the operating mode of a large amount of vapor in discharge gas.
Description of the drawings
Fig. 1 is that the utility model slag steam dehumidifying of quenching disappears white device embodiment overall pattern.
Specific implementation mode
With reference to the accompanying drawings and examples, the utility model is described in further detail.
Fig. 1 gives the utility model slag steam dehumidifying of quenching and disappears white device embodiment overall pattern.
The utility model slag steam dehumidifying of quenching disappears white device embodiment, its agent structure includes：It quenches grit chamber 10, pipeline wind
Machine 20, afterheat heat exchanger 30, dehumidifying spray column 40, cooling tower 50, demister 44, steam chimney 60, air blower 70.
The disappear specific dehumidifying white process that disappears of white device embodiment of slag steam dehumidifying of quenching is：
The clinker of blast furnace flows into grit chamber 10 of quenching, and by the water spray chilling hardening crack of sparge pipe 15, generates a large amount of high-temperature steams,
Portion air blending simultaneously is entered, and is formed the high temperature containing air and is quenched slag steam, and substantially, it is saturated moist air, it
Across steam channel, after being pressurizeed by pipeline fan 20, then quenched slag steam inlet by high temperature, into afterheat heat exchanger 30.
Afterheat heat exchanger 30 is the recuperative heat exchanger of a box-shaped, its side is that high temperature is quenched slag steam inlet, separately
Side is that medium temperature is quenched slag steam (vapor) outlet, and waste heat recovery pipe is equipped in afterheat heat exchanger 30, for absorbing slag steam heat of quenching, waste heat
Recovery tube has water inlet 32 and water outlet 31.
In afterheat heat exchanger 30, high temperature quenches slag steam to waste heat recovery pipe heat release, 32 He of water inlet of waste heat recovery pipe
Water outlet 31 is connect with extraneous heat utilization equipment.
Slag steam quench after 30 heat release of afterheat heat exchanger, remaining slag vapour volume of quenching obviously becomes smaller, wherein very one big
Point steam has condensed into water, and air therein partial pressure increases, and temperature reduces, and referred to as medium temperature is quenched slag steam.Medium temperature quench slag steaming
Vapour enters dehumidifying spray column 40 by quench slag steam (vapor) outlet and steam pipe 33 of medium temperature.
Dehumidifying spray column 40 is vertical tubular structure, its upper end is equipped with drip water plate, and lower end is equipped with cistern, cistern
Shower water the heat dissipation of cooling tower 50 is sent to by external water pump 42, the low temperature shower water after being cooled down by cooling tower 50, from
The water inlet 43 of dehumidifying 40 top end socket of spray column is sprayed into dehumidifying spray column 40 by drip water plate from the top down.Medium temperature
Slag steam of quenching enters from 40 lower part of dehumidifying spray column, flows from bottom to top, the shower water countercurrent flow with low temperature.
Medium temperature quenches slag steam in dehumidifying spray column 40 and low-temp. spraying water contact heat release, and medium temperature is quenched slag steam cooling, is become
Low temperature is quenched slag steam, while some vapor therein condenses into water, is dripped together with shower water.
Low temperature quenches slag steam again by steam pipe 41, by the demister 44 of shutter shape, except the water droplet in devaporation,
Subsequently into steam chimney 60.
Demister 44 is multilayer shutter, and the plane of shutter is vertical with the flow direction of slag steam of quenching, and contains water droplet
Slag steam quench when flowing through multilayer shutter, since institute is of water droplets more much larger than steam molecule quality in steam, inertia is big,
Tend to move along a straight line, water droplet is just hit on shutter surface, is captured by shutter, then flows downwardly into steam pipe from shutter surface
A collecting box on wall, then dehumidifying spray column 40 is flowed back to by conduit.
Low temperature slag steam of quenching is also saturated moist air, when being flowed up in steam chimney 60, and is mixed with more low
The surrounding air of warm low humidity.These surrounding airs are blown into from air blower 70 into chimney, it is therefore an objective to by blending, be reduced
It quenches in chimney the unit water capacity of slag steam, only several grams can be dropped to from nearly hectogram, when it is by throat outflow and dry and cold sky
When gas phase is met, the white haze of generation is lighter or even invisible white haze, reaches the white purpose that disappears.
Claims (4)
1. one kind is quenched, slag steam dehumidifying disappears white device, its agent structure includes：Quench grit chamber, pipeline fan, afterheat heat exchanger, remove
Wet spray column, cooling tower, demister, steam chimney and some connecting pipes；In the grit chamber of quenching of blast furnace, generation largely contains
There is the high temperature of air to quench slag steam, after it is pressurizeed by pipeline fan, into afterheat heat exchanger heat release, become medium temperature and quench slag steam,
Dehumidifying spray column is entered back into, is flowed from bottom to top, the shower water countercurrent flow with low temperature, which part steam condensation Cheng Shui becomes
It quenches slag steam at low temperature, then flowed from bottom to top into steam chimney by demister, it is characterised in that：It quenches slag steam dehumidifying
The agent structure of white device of disappearing further includes air blower, and surrounding air is blown into steam chimney by it, is mixed with low temperature slag steam of quenching, one
It rises from throat and flows out.
2. one kind described in accordance with the claim 1 is quenched, slag steam dehumidifying disappears white device, it is characterised in that：The afterheat heat exchanger,
It is the recuperative heat exchanger of a box-shaped, its side is that high temperature is quenched slag steam inlet, and the other side is that medium temperature is quenched slag steam
Outlet, afterheat heat exchanger is interior to be equipped with waste heat recovery pipe, and for absorbing slag steam heat of quenching, waste heat recovery pipe has water inlet and water outlet
Mouthful.
3. one kind described in accordance with the claim 1 is quenched, slag steam dehumidifying disappears white device, it is characterised in that：The dehumidifying spray column,
It is vertical tubular structure, its upper end sets water inlet, drip water plate and slag steam (vapor) outlet of quenching, and lower end is equipped with slag steam inlet of quenching
And cistern；The shower water of cistern is sent to cooling tower heat dissipation by the outer water pump of cistern, and the low temperature shower water after heat dissipation leads to
The water inlet for crossing dehumidifying spray column top end socket into dehumidifying spray column, then by drip water plate, sprays from the top down；Medium temperature is quenched
Slag steam enters from dehumidifying spray column lower part slag steam inlet of quenching, and flows, is changed with the shower water counter current contacting of low temperature from bottom to top
Heat, which part steam condensation Cheng Shui, medium temperature slag steam cooling of quenching become low temperature and quench slag steam, finally, low temperature quench slag steam from
Upper end quenching slag steam (vapor) outlet outflow.
4. one kind described in accordance with the claim 1 is quenched, slag steam dehumidifying disappears white device, it is characterised in that：The demister, it
Structure includes multilayer shutter, collecting box and conduit；The plane of multilayer shutter is vertical with the flow direction of slag steam of quenching, slag steam of quenching
In water droplet hit on shutter surface, flow downwardly into a collecting box in steam tube wall from shutter surface, then by leading
Pipe flows back to dehumidifying spray column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721706857.0U CN207793311U (en) | 2017-12-02 | 2017-12-02 | Slag steam dehumidifying of quenching disappears white device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721706857.0U CN207793311U (en) | 2017-12-02 | 2017-12-02 | Slag steam dehumidifying of quenching disappears white device |
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| CN207793311U true CN207793311U (en) | 2018-08-31 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109457068A (en) * | 2018-12-27 | 2019-03-12 | 中冶京诚工程技术有限公司 | Energy-saving whitening treatment system for blast furnace granulated slag process |
| CN109457063A (en) * | 2018-10-08 | 2019-03-12 | 哈尔滨工大金涛科技股份有限公司 | High temperature mixes wind type slag steam of quenching and disappears white device |
| CN110093464A (en) * | 2019-04-16 | 2019-08-06 | 浙江菲达环保科技股份有限公司 | A kind of blast furnace slag flushing residual heat heating and steam disappear white system and method |
| CN110093465A (en) * | 2019-04-16 | 2019-08-06 | 浙江菲达环保科技股份有限公司 | A kind of blast furnace slag flushing vapor disappears white system and method |
| CN110145945A (en) * | 2019-04-16 | 2019-08-20 | 浙江菲达环保科技股份有限公司 | A kind of blast furnace slag flushing steam based on residual heat heating disappears white system and method |
| CN110141927A (en) * | 2019-04-16 | 2019-08-20 | 浙江菲达环保科技股份有限公司 | A kind of blast furnace slag flushing steam based on UTILIZATION OF VESIDUAL HEAT IN disappears white system and method |
-
2017
- 2017-12-02 CN CN201721706857.0U patent/CN207793311U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109457063A (en) * | 2018-10-08 | 2019-03-12 | 哈尔滨工大金涛科技股份有限公司 | High temperature mixes wind type slag steam of quenching and disappears white device |
| CN109457068A (en) * | 2018-12-27 | 2019-03-12 | 中冶京诚工程技术有限公司 | Energy-saving whitening treatment system for blast furnace granulated slag process |
| CN109457068B (en) * | 2018-12-27 | 2023-11-10 | 中冶京诚工程技术有限公司 | Energy-saving and whitening treatment system for blast furnace granulated slag process |
| CN110093464A (en) * | 2019-04-16 | 2019-08-06 | 浙江菲达环保科技股份有限公司 | A kind of blast furnace slag flushing residual heat heating and steam disappear white system and method |
| CN110093465A (en) * | 2019-04-16 | 2019-08-06 | 浙江菲达环保科技股份有限公司 | A kind of blast furnace slag flushing vapor disappears white system and method |
| CN110145945A (en) * | 2019-04-16 | 2019-08-20 | 浙江菲达环保科技股份有限公司 | A kind of blast furnace slag flushing steam based on residual heat heating disappears white system and method |
| CN110141927A (en) * | 2019-04-16 | 2019-08-20 | 浙江菲达环保科技股份有限公司 | A kind of blast furnace slag flushing steam based on UTILIZATION OF VESIDUAL HEAT IN disappears white system and method |
| CN110093465B (en) * | 2019-04-16 | 2021-06-08 | 浙江菲达环保科技股份有限公司 | Blast furnace slag flushing steam whitening system and method |
| CN110141927B (en) * | 2019-04-16 | 2021-06-29 | 浙江菲达环保科技股份有限公司 | Blast furnace slag flushing steam whitening system and method based on waste heat utilization |
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