CN208883918U - The bletilla afterheat utilizing system that disappears of washing slag water - Google Patents

The bletilla afterheat utilizing system that disappears of washing slag water Download PDF

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Publication number
CN208883918U
CN208883918U CN201821438072.4U CN201821438072U CN208883918U CN 208883918 U CN208883918 U CN 208883918U CN 201821438072 U CN201821438072 U CN 201821438072U CN 208883918 U CN208883918 U CN 208883918U
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China
Prior art keywords
water
flushing cinder
condenser
washing slag
outlet
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CN201821438072.4U
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Inventor
李延平
刘兴
束海涛
王少云
汤一峰
徐文龙
黄海波
朱瑞贺
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Shandong Dai Rong Energy-Conserving And Environment-Protective Science And Technology Ltd
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Shandong Dai Rong Energy-Conserving And Environment-Protective Science And Technology Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Abstract

The utility model provides a kind of bletilla afterheat utilizing system that disappears of washing slag water, including collecting hood, pneumatic filter, air-introduced machine and the condenser being sequentially communicated by pipeline, the collecting hood is set to the top in flushing cinder pond, and the condensed water water outlet of the condenser is connected to flushing cinder pond by pipeline.The utility model is collected the mixed gas above flushing cinder pond using collecting hood, after pneumatic filter filters, it is sent into condenser using air-introduced machine, cooled down within the condenser using chilled water to the mixed gas above washing slag water pond and is condensed, to cut down white haze phenomenon, condensed water is again introduced into flushing cinder pond and carries out flushing cinder, economizes on resources.

Description

The bletilla afterheat utilizing system that disappears of washing slag water
Technical field
The utility model relates to technical field of waste heat utilization more particularly to a kind of bletilla UTILIZATION OF VESIDUAL HEAT IN systems that disappears of washing slag water System.
Background technique
With the fast development of China's economic, China Steel yield is also increasing year by year, and annual output was basic from 2011 Reach 700,000,000 tons or so, in recent years as country optimizes the economic structure and slightly rises and falls, but remain within higher annual output, Consequent is that blast furnace ironmaking produces a large amount of blast furnace slag.
China's blast furnace slag treating process is mainly Water Quenching Slag technology mode.1400 DEG C -1500 DEG C of high temperature furnace in blast furnace Slag is flowed out through cinder notch, when entering flushing cinder chute through slag runner, with certain water, hydraulic pressure and the chute gradient, makes water and slag stream At certain angle of cut, impact, which is quenched, is melted into qualified grain slag.In Iron-smelting, the new water of flushing cinder consumption accounts for new water always consumes 50% More than.1 ton of grain slag of punching consumes about 11.2 tons of new water, and cycling use of water amount is about 10 tons or so.It is produced according to steel production in China 500,000,000 tons are measured, is calculated by 350 kilograms of slag ratioes, is only used for the new water consumption of flushing cinder just more than 1.5 hundred million tons, accounts for the new water of steel and iron industry and disappear The 4% of consumption.The physics heat for the blast furnace slag taken away by washing slag water accounts for 8% or so of ironmaking energy consumption, is about as much as 21 kilograms, mark Coal (is calculated) by 350 kg/ton of iron.60-85 DEG C of the water temperature range of circulating water pool belongs to industrial low-temperature waste heat source, if be not added To utilize, this portion of energy will be wasted.
Currently, the flushing cinder coolant-temperature gage of domestic steel mill is low, meanwhile, wherein containing more impurity and corrosive media, it is easy stifled Pipeline and corrosion heat exchanger are filled in, and because its heat is big, the utilization rate as heating is not high, therefore is less frequently utilized its waste heat;Meanwhile it rushing White haze status above pulp water pond causes visual pollution, contains SO in white haze2And SO3And the impurity escaped in slag, it makes At the environmental protection large-scale waste not up to standard with waste heat.
Utility model content
In view of the shortcomings of the prior art, the utility model provides a kind of bletilla afterheat utilizing systems that disappears of washing slag water, with solution The problem of certainly waste heat wastes and pollutes environment in background technique.
The utility model is achieved by the following technical solution:
The utility model provides a kind of bletilla afterheat utilizing system that disappears of washing slag water, including the receipts being sequentially communicated by pipeline Collect cover, pneumatic filter, air-introduced machine and condenser, the collecting hood is set to the top in flushing cinder pond, the condenser it is cold Condensate water outlet is connected to flushing cinder pond by pipeline.
Collecting hood is set above flushing cinder pond, pneumatic filter is set after collecting hood, the two is connected by pipeline, gas mistake Air-introduced machine is set after filter, mixed gas is introduced into condenser using air-introduced machine pressurization, chilled water water inlet is set on condenser With chilled water water outlet, mixed gas is down to room by chilled water and heat transfer of mixture gas by chilled water water inlet into 7 DEG C Temperature is discharged, and the moisture being precipitated in gas is connected to by pipeline with flushing cinder pond, continues memory flushing cinder, 7 DEG C of chilled water is by changing Hot temperature rise is to 12 DEG C, chilled water water outlet outflow.
Preferably, the outlet in the flushing cinder pond has been sequentially communicated filter, booster pump, heat exchanger and turbine by pipeline The water outlet of machine, the heat exchanger is connected to flushing cinder pond by pipeline.
The filter can be multistage filter, carry out coarse filtration, thin filtering respectively, prevent it from blocking pipeline, then lead to Piping pump pressurization, introduces the water into heat exchanger, using 85 DEG C -50 DEG C of washing slag water of heat organic working medium, utilizes organic work Matter pushes turbine power generation, to generate economic benefit.Washing slag water after cooling enters flushing cinder pond and carries out flushing cinder again.By The pressurized washing slag water of booster pump enters heat exchanger by the water inlet of heat exchanger, and machine working medium entrances are also set up on heat exchanger and are had Machine sender property outlet, the organic working medium entrance are connected to the outlet of turbine, turbine described in the organic working medium outlet Entrance, the organic working medium condensate liquid of turbine outlet outflow enters heat exchanger and exchanges heat with 85 DEG C -50 DEG C of washing slag water, organic Working fluid condensate is converted into organic working medium steam by heating and enters turbine work, and the washing slag water after cooling passes through water outlet stream Out, continue flushing cinder into flushing cinder pond.
Preferably, the water outlet of the heat exchanger be connected to the condenser condensed water water outlet and the flushing cinder pond it Between pipeline.
The washing slag water of heat exchanger outflow and the condensed water of condenser outflow enter flushing cinder pond after converging jointly and carry out flushing cinder, It economizes on resources.
Preferably, the gas outlet of the condenser is communicated with chimney.Mixed gas after cooling down in condenser passes through chimney It is discharged.
Technical solution provided by the embodiment of the utility model may include it is following the utility model has the advantages that
The utility model provides a kind of bletilla afterheat utilizing system that disappears of washing slag water, including the receipts being sequentially communicated by pipeline Collect cover, pneumatic filter, air-introduced machine and condenser, the collecting hood is set to the top in flushing cinder pond, the condenser it is cold Condensate water outlet is connected to flushing cinder pond by pipeline.The utility model is received the mixed gas above flushing cinder pond using collecting hood Collection gets up, and after pneumatic filter filters, is sent into condenser using air-introduced machine, within the condenser using chilled water to flushing cinder Mixed gas above pond, which cools down, to be condensed, to cut down white haze phenomenon, condensed water is again introduced into flushing cinder pond and carries out flushing cinder, section About resource.
Detailed description of the invention
Illustrate the utility model embodiment or technical solution in the prior art in order to clearer, it below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it is clear that, to those skilled in the art, Without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is that a kind of washing slag water provided by the embodiment of the utility model disappears the structural schematic diagram of bletilla afterheat utilizing system.
It is as shown in the figure: flushing cinder pond 1, collecting hood 2, pneumatic filter 3, air-introduced machine 4, condenser 5, chilled water water inlet 51, chilled water water outlet 52, condensed water water outlet 53, air inlet 54, gas outlet 55, chimney 6, filter 7, booster pump 8, heat exchange Device 9, organic working medium entrance 91, organic working medium export 92, turbine 10.
Specific embodiment
It, below will be practical to this in order to make those skilled in the art more fully understand the technical solution in the utility model Technical solution in new embodiment is clearly and completely described, it is clear that described embodiment is only the utility model A part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art are not having Every other embodiment obtained under the premise of creative work is made, the protection scope of the utility model all should belong to.
Referring to Fig. 1, it is shown a kind of bletilla afterheat utilizing system that disappears of washing slag water provided by the embodiment of the utility model, is wrapped Collecting hood 2, pneumatic filter 3, air-introduced machine 4 and the condenser 5 being sequentially communicated by pipeline are included, the collecting hood 2 is set to punching The top in pulp water pond 1 is provided with chilled water water inlet 51, chilled water water outlet 52, condensed water water outlet on the condenser 5 53, air inlet 54 and gas outlet 55, the condensed water water outlet 53 are connected to flushing cinder pond 1 by pipeline, and the gas outlet 55 is logical Piping is connected to chimney.
In the present embodiment, collecting hood 2 is set in the top in flushing cinder pond 1, collecting hood 2 is by the fog of the top of flushing cinder pond 1 It collecting, collecting hood 2 is connect by pipeline with pneumatic filter 3, and pneumatic filter 3 is filtered the gas being collected into, Pneumatic filter 3 is connect by pipeline with air-introduced machine 4, and condenser 5 is connect by pipeline with air-introduced machine 4, after air-introduced machine 4 will filter Gas is introduced into condenser 5 by air inlet 54, setting chilled water water inlet 51 and chilled water water outlet 52 on condenser 5, Entering 7 DEG C of chilled water in chilled water water inlet 51, the mixed gas that 7 DEG C of chilled water enters with air inlet 51 exchanges heat, Mixed gas is down to room temperature, the gas after cooling enters chimney 6 from gas outlet 55 and discharges, and the moisture being precipitated in gas passes through cold Condensate water outlet 53 is connected to through pipeline with flushing cinder pond 1, is used for flushing cinder, and 7 DEG C of chilled water is by heat exchange temperature rise to 12 DEG C from cold Freeze water water outlet 52 to flow out.Cooling condensation is carried out using mixed gas of the chilled water to 1 top of washing slag water pond, it is existing to have cut down white haze As.
Further, in the present embodiment, the outlet in the flushing cinder pond 1 by pipeline be sequentially communicated filter 7, booster pump 8, The water outlet of heat exchanger 9 and turbine 10, the heat exchanger 9 is connected to flushing cinder pond 1.
Multistage filter is arranged in the water outlet in the flushing cinder pond 1, carries out coarse filtration, thin filtering respectively, blocking is prevented to manage Road, filtered washing slag water are introduced heat exchanger 9 after booster pump 8 is pressurized, are added using 85 DEG C -50 DEG C of heat of washing slag water Hot organic working medium pushes turbine to generate electricity, to generate economic benefit using organic working medium.Specifically, the water inlet of heat exchanger 9 Into 85 DEG C -50 DEG C of washing slag water, the organic working medium entrance of heat exchanger 9 enters organic wage condensate liquid, organic working medium condensation Liquid exchanges heat with washing slag water, heats organic working medium condensate liquid using 85 DEG C -50 DEG C of washing slag waters, organic working medium condensate liquid is inhaled Become organic working medium steam after heat and enter turbine 10 from the organic working medium of heat exchanger 9 outlet 92, turbine is pushed to generate electricity, 85 DEG C -50 DEG C of washing slag water, which loses, to be become 50 DEG C or so of washing slag water after heat and flows out from water outlet, through in pipeline and condenser 5 Enter washing slag water pond after the condensed water mixing of outflow, continues flushing cinder.Organic working medium steam, which enters after turbine 10 acts on, to be become At organic working medium condensate liquid, enter heat exchanger 9 from organic working medium entrance 91, heat exchange is converted into organic working medium steaming in heat exchanger 9 The work of turbine 10 is gone successively to after vapour.
Organic working medium is heated using the heat of washing slag water by the way that heat exchanger 9 is arranged, pushes turbine power generation, is generated economical Benefit, the condensed water of washing slag water and the white system that disappears after cooling converges carries out flushing cinder again, economizes on resources.
Specifically, the condenser 5 uses 2205 materials, in the present embodiment to adapt to the corrosive conditions of mixed gas.Institute It states heat exchanger 9 and uses 2205 materials, to adapt to the corrosive conditions of washing slag water.In the present embodiment, collecting hood 2, pneumatic filter 3, Air-introduced machine 4 and condenser 5 collectively constitute the white system that disappears, and the white system that disappears, which realizes, subtracts white effect, and filter 7, changes booster pump 8 Hot device 9 and turbine 10 form residual neat recovering system, and residual neat recovering system pushes turbine system using washing slag water heating working medium It generates electricity, produces economic benefit, while continuing flushing cinder using waste heat washing slag water after the recovery to realize water-saving, reduction sewage Processing cost.The utility model realizes disappear white, energy-saving, reduction pollutant emission and water-saving multipurpose.
Certainly, above description is also not limited to the example above, and technical characteristic of the utility model without description can lead to It crosses or realizes that details are not described herein using the prior art;Above embodiments are merely to illustrate the technical solution of the utility model simultaneously Non- is limitations of the present invention, and the utility model is described in detail referring to preferred embodiment, this field It is to be appreciated by one skilled in the art that those skilled in the art were made in the essential scope of the utility model Variations, modifications, additions or substitutions also should belong to the claim protection of the utility model without departure from the objective of the utility model Range.

Claims (5)

1. a kind of bletilla afterheat utilizing system that disappears of washing slag water, which is characterized in that including the collecting hood being sequentially communicated by pipeline (2), pneumatic filter (3), air-introduced machine (4) and condenser (5), the collecting hood (2) are set to the top of flushing cinder pond (1), The condensed water water outlet (53) of the condenser (5) is connected to flushing cinder pond (1) by pipeline.
2. the bletilla afterheat utilizing system that disappears of washing slag water according to claim 1, which is characterized in that the flushing cinder pond (1) outlet has been sequentially communicated filter (7), booster pump (8), heat exchanger (9) and turbine (10), the heat exchange by pipeline The water outlet of device (9) is connected to flushing cinder pond (1) by pipeline.
3. the bletilla afterheat utilizing system that disappears of washing slag water according to claim 2, which is characterized in that the heat exchanger (9) Water outlet be connected to the pipeline between the condensed water water outlet (53) and the flushing cinder pond (1).
4. the bletilla afterheat utilizing system that disappears of washing slag water according to claim 3, which is characterized in that the heat exchanger (9) On be provided with organic working medium entrance (91) and organic working medium outlet (92), the organic working medium entrance (91) is connected to turbine (10) Outlet, organic working medium outlet (92) is connected to the entrance of the turbine (10).
5. the bletilla afterheat utilizing system that disappears of washing slag water according to claim 1-4, which is characterized in that described cold The gas outlet of condenser (5) is communicated with chimney (6).
CN201821438072.4U 2018-09-04 2018-09-04 The bletilla afterheat utilizing system that disappears of washing slag water Active CN208883918U (en)

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Application Number Priority Date Filing Date Title
CN201821438072.4U CN208883918U (en) 2018-09-04 2018-09-04 The bletilla afterheat utilizing system that disappears of washing slag water

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110375557A (en) * 2019-07-09 2019-10-25 鞍钢股份有限公司 A kind of system and method recycling blast furnace slag quenching water waste heat

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110375557A (en) * 2019-07-09 2019-10-25 鞍钢股份有限公司 A kind of system and method recycling blast furnace slag quenching water waste heat

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