CN209605612U - The weary steam of blast furnace slag quenching water takes off white improvement and water-saving system - Google Patents
The weary steam of blast furnace slag quenching water takes off white improvement and water-saving system Download PDFInfo
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- CN209605612U CN209605612U CN201920132409.7U CN201920132409U CN209605612U CN 209605612 U CN209605612 U CN 209605612U CN 201920132409 U CN201920132409 U CN 201920132409U CN 209605612 U CN209605612 U CN 209605612U
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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
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Abstract
The utility model discloses a kind of weary steam of blast furnace slag quenching water to take off white improvement and water-saving system, the system makes the weary steam of washing slag water cool, large quantity of moisture is precipitated, reduce water capacity in the weary steam of washing slag water, to reduce white cigarette in discharge or without white, dust, sulfur dioxide (SO are also carried in the moisture of precipitation2), nitrogen oxides (NOX) etc. pollutants, to further reduced the toxic of discharge gas；It is provided with caloic in the system and takes off white device, spray assemblies and heat exchanger tube are set inside it, it is cooled down by way of water cooling and air-cooled combination, in its bottom, collecting tank is set, to sufficiently recycle shower water and cooling water, by the processing such as purification sedimentation it is subsequent it is continuous use as washing slag water and shower water, improve the utilization efficiency of water resource, it can either be water-saving, additionally it is possible to emission reduction.
Description
Technical field
The utility model relates to the device and method of energy conservation and environmental protection, and in particular to the weary steam Tuo Baizhi of blast furnace slag quenching water
Reason and water-saving system and method.
Background technique
In recent years, strict demand with country to energy-saving and emission-reduction and discharge index, each row in production field of metallurgy
Each industry constantly takes measures, and research new technology, exploitation new process, manufacture new equipment all come into operation in energetically installation.Through
Effort in a few years, some enterprises are in dust, SO2, can reach national emission standard requirement in the discharge indexs such as sewage, make ring
There is very big change in border.
But the problem of there is also other aspect urgent need to resolve in current industrial production, such as iron and steel enterprise's blast furnace slag flushing
When the weary discharge of steam of water, it may appear that long white dragon, also referred to as white cigarette, and more past northern colder region Bai Longyue
It is long.These white cigarettes seriously destroy urban landscape, influence periphery traffic visibility etc., cause serious pollution situation to atmosphere；
The main component of these white cigarettes is vapor known to by analysis, wherein also containing certain dust pollution object, sulfur dioxide
(SO2), nitrogen oxides (NOX) etc., these white cigarettes are also an origin cause of formation of haze, so in recent years about taking off white regulation and want
Ask more and more；
In addition, the water content in the white cigarette is larger, it is directly discharged in air that steel mill's water consumption is necessarily caused to increase, such as
Fruit recycles again after capable of recycling, and can not only save great lot of water resources, additionally it is possible to reduce the production cost of enterprise.
The present inventor studies the ingredient of white cigarette, the origin cause of formation and its changing rule at different temperatures, hair due to the above reasons,
Temperature when the existing weary steam of washing slag water is escaped from slag runner is at 95 DEG C or more, from temperature when chimney discharge at 85 DEG C or so,
In still contain a large amount of water, go out on this basis in conjunction with the white cigarette discharge scale of each factory, the information designs such as white cigarette ingredient
A kind of system being able to solve the above problem.
Utility model content
In order to overcome the above problem, present inventor has performed sharp studies, and it is de- to design a kind of weary steam of blast furnace slag quenching water
White improvement and water-saving system, the system from 95 DEG C when being located in slag runner, are discharged the weary steam of washing slag water, In after being cooled to 52 DEG C
Large quantity of moisture is precipitated from the weary steam of washing slag water in cooling process, so that water capacity in the weary steam of washing slag water is reduced, so that flushing cinder
White cigarette when the weary discharge of steam of water reduces or without white cigarette, dust, sulfur dioxide (SO is also carried in the moisture of precipitation2), nitrogen
Oxide (NOX) etc. pollutants, to further reduced the toxic of discharge gas；Be provided in the system caloic take off it is white
Spray assemblies and heat exchanger tube are arranged inside it, is cooled down by way of water cooling and air-cooled combination for device, are arranged in its bottom
Collecting tank, thus sufficiently recycling shower water and cooling water, subsequent continuous as washing slag water and spray by processing such as purification sedimentations
Water uses, and improves the utilization efficiency of water resource, can either be water-saving, additionally it is possible to emission reduction, to complete the utility model.
Specifically, the purpose of this utility model is to provide a kind of weary steam of blast furnace slag quenching water to take off white improvement and water-saving system
System, the system include the weary steam fairlead 3 of washing slag water, and one end is located at 1 top of slag runner, and the other end is connected to caloic and takes off white device
Pedestal 5；
The weary steam 6 of washing slag water in slag runner 1 enters caloic by the weary steam fairlead 3 of washing slag water and takes off in white device pedestal 5；
The caloic takes off white device pedestal 5 and is internally provided with the cavity for accommodating the weary steam 6 of washing slag water,
The top that the caloic takes off white device pedestal 5 is provided with the caloic being connected with the cavity and takes off white device ontology 8,
Because of cooled cooling during the weary steam 6 of washing slag water moves up in caloic takes off white device ontology 8, wherein
Water vapor condensation at liquid and be back to caloic and take off in white device pedestal 5.
Wherein, it is taken off in white device pedestal 5 in the caloic and is additionally provided with spray assemblies 7, be used to take off white device to the caloic
Cavity in pedestal 5 sprays cooling water, the cooling weary steam 6 of washing slag water therein.
Wherein, it is provided with rotational flow fan 2 on the weary steam fairlead 3 of the washing slag water, be used for washing slag water constantly
Weary steam 6 leads to caloic from slag runner 1 and takes off white device pedestal 5；
Preferably, it is additionally provided with differential pressure flow meter 4 on the weary steam fairlead 3 of the washing slag water, is rushed to monitoring record
The intake of the weary steam 6 of pulp water.
Wherein, white device ontology 8 being taken off in the caloic and being internally provided with heat exchanger tube 21, caloic takes off the flushing cinder in white device pedestal 5
The weary steam 6 of water is moved upwards up to the top that caloic takes off white device ontology 8 inside heat exchanger tube 21, in the process Water vapor condensation at
Liquid is simultaneously back to caloic along the inner wall of heat exchanger tube 21 and takes off in white device pedestal 5.
Wherein, it is taken off inside white device ontology 8 in caloic, is provided with tube sheet 22 at white device pedestal 5 taking off close to caloic, passes through institute
State the fixed heat exchanger tube 21 of tube sheet, and obstruct the weary steam 6 of washing slag water, prevent the weary steam 6 of washing slag water from 21 outside loss of heat exchanger tube to
Caloic takes off white 8 top of device ontology.
Wherein, white 8 lower end side of device ontology is taken off in the caloic and be provided with cold wind connecting pipe 12, connected by the cold wind
It threads a pipe and 12 is taken off to caloic and inject cold air in white device ontology 8, cold air moves up outside heat exchanger tube 21, absorption heat-exchange
The heat that the weary steam 6 of washing slag water carries in managing.
Wherein, it is taken off in the caloic and is provided with dry mixture air-introduced machine 9 at the top of white device ontology 8, pass through the dry mixture
Air-introduced machine 9 aspirates the cold air outside the weary steam 6 of washing slag water and heat exchanger tube 21 inside heat exchanger tube 21.
Wherein, which further includes setting spray pump 17 on the ground, the spray pump 17 by spray pipeline 16 with
Spray assemblies 7 are connected, and provide cooling water for the spray assemblies 7.
Wherein, which further includes the cold wind pressure fan 15 of setting on the ground, and the cold wind pressure fan 15 passes through cold sky
Feed channel 14 is connected with cold wind connecting pipe 12, provides cold air for cold wind connecting pipe 12；
Preferably, which further includes the cold air duct bracket 13 to support cold-air duct 14.
The utility model also provides a kind of weary steam of blast furnace slag quenching water and takes off white improvement and water-saving method, which is characterized in that should
The weary steam of blast furnace slag quenching water is done by system as described above in method and takes off white saving water.
Beneficial effect possessed by the utility model includes:
(1) take off that white improvement and water-saving system structure are simple, account for according to the weary steam of blast furnace slag quenching water provided by the utility model
Ground area is small, saves water and energy, easy to maintain, reliable for operation, production run expense is low, can achieve the weary steam row of blast furnace slag quenching water
It puts and subtracts white or take off white purpose；
(2) white improvement is taken off according to the weary steam of blast furnace slag quenching water provided by the utility model and water-saving system can also be further
The discharge amount for reducing pollutant, so that pollutant discharge amount is well below national standard.
Detailed description of the invention
Fig. 1 show according to a kind of weary steam of the blast furnace slag quenching water of preferred embodiment of the utility model take off it is white improvement and it is water-saving
Overall system architecture schematic diagram；
Fig. 2 shows the structural schematic diagrams that white device section view is taken off according to a kind of caloic of preferred embodiment of the utility model；
Fig. 3, which is shown, takes off white device top view according to a kind of caloic of preferred embodiment of the utility model；
Fig. 4 shows the heat exchange tube structure that spiral grooves are offered according to a kind of inside of preferred embodiment of the utility model
Schematic diagram；
Fig. 5 is shown according to a kind of structural schematic diagram of the spray assemblies of preferred embodiment of the utility model.
Drawing reference numeral explanation:
1- slag runner
2- rotational flow fan
The weary steam fairlead of 3- washing slag water
4- differential pressure flow meter
5- caloic takes off white device pedestal
The weary steam of 6- washing slag water
7- spray assemblies
71- spray head
72- jet pipe
8- caloic takes off white device ontology
9- dry mixture air-introduced machine
10- dry mixture
11- temperature tachograph
12- cold wind connecting pipe
13- cold air duct bracket
14- cold-air duct
15- cold wind pressure fan
16- spray pipeline
17- spray pump
18- liner bone plate
19- frame is set
20- fixed plate
21- heat exchanger tube
22- tube sheet
23- sewage draining exit
Specific embodiment
The utility model is further described below by drawings and examples.Illustrated by these, this is practical new
The characteristics of type and advantage will become more apparent from clear.
Dedicated word " exemplary " means " being used as example, embodiment or illustrative " herein.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.Although each of embodiment is shown in the attached drawings
In terms of kind, but unless otherwise indicated, it is not necessary to attached drawing drawn to scale.
White improvement and water-saving system are taken off according to the weary steam of blast furnace slag quenching water provided by the utility model, it as shown in fig. 1, should
System includes the weary steam fairlead 3 of washing slag water, and one end is located at 1 top of slag runner, and the other end is connected to caloic and takes off white device pedestal
5；The weary steam fairlead 3 of washing slag water be located at the difference in height in the end and slag runner of the top of slag runner 1 between horizontal run be 1~
It 2 meters, is entered in the weary steam fairlead 3 of the pulp water from the upward loss of the weary steam of washing slag water risen in slag runner；
The weary steam 6 of washing slag water in slag runner 1 enters caloic by the weary steam fairlead 3 of washing slag water and takes off in white device pedestal 5；
The caloic takes off white device pedestal 5 and is internally provided with the cavity for accommodating the weary steam 6 of washing slag water,
The top that the caloic takes off white device pedestal 5 is provided with the caloic being connected with the cavity and takes off white device ontology 8,
Because of cooled cooling during the weary steam 6 of washing slag water moves up in caloic takes off white device ontology 8, wherein
Water vapor condensation at liquid and be back to caloic and take off in white device pedestal 5.
The biggish high-temperature steel slag of quantity can be generated in fields in steel-making etc., in the prior art by Water Quenching Slag technology mode into
Row processing, that is, be rinsed with water steel slag, the water of the flushing steel slag is washing slag water described herein, the flushing cinder after rinsing steel slag
The temperature of water increases, and part flushing cinder water is vaporized into gaseous state, and loss condenses into water mist afterwards in air, to obtain institute in the application
The weary steam of the washing slag water stated.
Slag runner described herein is the common element of installation in fields such as steel-making, the steel slag for making steel generation periodically discharges/
It is poured onto slag runner, steel slag is rinsed with water in slag runner, select existing slag runner in the prior art and blast furnace provided by the present application
The weary steam of washing slag water takes off white improvement and water-saving system is connected, and the application is not particularly limited this.
Preferably, the cavity lower end is provided with collecting tank, shower water and the weary steam 6 of washing slag water is collected in the collecting tank
Condensed condensed water；
Preferably, the caloic takes off white device ontology 8 and caloic takes off white device pedestal 5 and collectively constitutes caloic and takes off white device, the caloic
The core component that white device is also the device and method is taken off, which takes off the height of white device generally at 12 meters or so, in actual installation
When work mainly the caloic taken off into white device be fixed near slag runner, then pass through the weary steam fairlead 3 of washing slag water and slag runner 1
It is logical, by collecting tank and water treatment facilities and spray assemblies and relevant device connection, then cold wind connecting pipe 12 is set.It is preferred that
Ground takes off in white device pedestal 5 in the caloic and is additionally provided with spray assemblies 7, is used to take off the sky in white device pedestal 5 to the caloic
Chamber sprays cooling water, the cooling weary steam 6 of washing slag water therein.The weary steam of washing slag water takes off white device pedestal 5 entering caloic
Temperature when middle is 95 degree or so, is reduced to 65~80 degree or so after the spray of spray assemblies 7, and still with higher
Water content has a large amount of condensed water and is precipitated when entering back into subsequent air-cooled link.The weary steam of washing slag water described herein is
Refer to weary gas containing saturated vapor after slag runner bath, it is subsequent multi task process is done to the gas after be still referred to as washing slag water
Weary steam.
The cooling water can select the water to flushing cinder, and temperature is room temperature, and shower water enters institute after spray
In the collecting tank for stating cavity lower end, caloic is uniformly expelled to after mixing with the condensed condensed water of the weary steam 6 of washing slag water and takes off white device
Except, then via flushing cinder or spray can be re-used for after the processing such as sedimentation, filtering, adjusting pH value, to realize water resource
Persistent loop utilize, specific water treatment programs can carry out according to the ingredient of factories and miness environment and the raw material of industry where equipment
Selection is arranged, and is not particularly limited in the application to this.
By actual monitoring it is found that carrying the biggish pollutant impurity of content from the condensed water to flow back in heat exchanger tube,
Subsequent water treatment procedure is also primarily to remove mixed pollutant impurity in water removal, this can also illustrate the blast furnace slag quenching water
Weary steam take off it is white improvement and water-saving system can not only take off it is white, water-saving, additionally it is possible to further decrease the discharge of pollutant.
Preferably, which further includes the spray pump 17 of setting on the ground, and the spray pump 17 passes through spray pipeline 16
It is connected with spray assemblies 7, provides cooling water for the spray assemblies 7.
The spray pipeline 16 is the good soft pipeline of leakproofness, can be realized the function of above-mentioned circulation cooling water i.e.
Can, can select in the prior art existing pipeline prepared, the application is not particularly limited this.
The spray pump 17 can select existing pump in this field, can be realized above-mentioned function, the application is to this
It is not particularly limited.
It is highly preferred that extracting treated recirculated water as cooling water by the spray pump 17 is supplied to spray assemblies
7, i.e., the described spray pump 17 is connected with circular water treating system.
In one preferred embodiment, it is provided with rotational flow fan 2 on the weary steam fairlead 3 of the washing slag water,
White device pedestal 5 is taken off for the weary steam 6 of washing slag water constantly to be led to caloic from slag runner 1；
The rotational flow fan can select existing blower in this field, can be realized above-mentioned function, the application couple
This is not particularly limited.
Preferably, it is additionally provided with differential pressure flow meter 4 on the weary steam fairlead 3 of the washing slag water, is rushed to monitoring record
The intake of the weary steam 6 of pulp water；
The differential pressure flow meter can select existing differential pressure flow meter in this field, can be realized above-mentioned function,
The application is not particularly limited this.
Preferably, the weary steam fairlead 3 of the washing slag water is provided with a plurality of, the weary steam fairlead 3 of washing slag water and slag runner
The different location of slag runner is arranged in connectivity port, in order to as often as possible, as soon as possible draw the weary steam of washing slag water from slag runner
Out.
At least one rotational flow fan 2 is both provided on every weary steam fairlead 3 of washing slag water；
The end that the weary steam fairlead 3 of the washing slag water is connected with slag runner 1 is provided with taper wide-mouth, in order to increase punching
The circulation efficiency of the weary steam of pulp water.
In one preferred embodiment, white device ontology 8 being taken off in the caloic and being internally provided with heat exchanger tube 21, caloic is de-
The weary steam 6 of washing slag water in white device pedestal 5 is moved upwards up to the top that caloic takes off white device ontology 8 inside heat exchanger tube 21, herein
Water vapor condensation at liquid and is back to caloic along the inner wall of heat exchanger tube 21 and takes off in white device pedestal 5 in the process.
The heat exchanger tube 21 is provided with multiple, and multiple heat exchanger tubes are densely arranged, parallel to each other, it is preferable that each heat exchanger tube
Dimensional standard it is substantially completely consistent, internal diameter be 70~90mm, be more preferably arranged to 80mm；Two adjacent heat exchange
There are certain gaps between pipe, in order to which cold air can pass through from gap, take away the weary steam 6 of washing slag water in heat exchanger tube and take
The heat of band completes heat exchange.
Preferably, it is taken off inside white device ontology 8 in caloic, is provided with tube sheet 22 at white device pedestal 5 taking off close to caloic, passes through
The fixed heat exchanger tube 21 of the tube sheet, and the weary steam 6 of washing slag water is obstructed, prevent the weary steam 6 of washing slag water from 21 outside loss of heat exchanger tube
White 8 top of device ontology is taken off to caloic.The weary steam 6 of washing slag water for taking off loss upwards in white device pedestal 5 from caloic is by tube sheet 22
Stop, loss can be just continued up after can only enter in heat exchanger tube 21.
Tube sheet described herein includes round or square metal plate, is equipped with heat exchanger tube on the sheet metal,
It is affixed by way of rising and connecing and/or weld between sheet metal and heat exchanger tube, heat exchanger tube, and metal plate are fixed by the tube sheet
It is sealed between material and heat exchanger tube, without gap, prevents the weary steam of the washing slag water below tube sheet from passing through gap loss to tube sheet top.
Preferably, white 8 lower end side of device ontology is taken off in the caloic and be provided with cold wind connecting pipe 12, pass through the cold wind
Connecting pipe 12 takes off to caloic and injects cold air in white device ontology 8, and cold air moves up outside heat exchanger tube 21, and absorption is changed
The heat that the weary steam 6 of washing slag water carries in heat pipe.
Preferably, which further includes the cold wind pressure fan 15 of setting on the ground, and the cold wind pressure fan 15 passes through cold
Air pipeline 14 is connected with cold wind connecting pipe 12, provides cold air for cold wind connecting pipe 12；The cold air can be general
Logical outdoor air, it is not necessary to do special processing to it, in the higher situation of summer outdoor temperature, can suitably increase cold wind and send
The operating power of blower 15 can suitably reduce the work function of cold wind pressure fan 15 in winter in the lower situation of outdoor temperature
Rate.
The cold wind pressure fan can select existing blower in this field, can be realized above-mentioned function, the application
This is not particularly limited.
Preferably, which further includes the cold air duct bracket 13 to support cold-air duct 14.The cold air duct
As shown in fig. 1, one end support cold-air duct 14, the other end is stood still for a long while on the ground bracket 13, and entire body is intersected by steel
It consolidates.
The air pipeline can select existing pipeline in this field to be made, and can be metallic conduit and be also possible to plastics etc.
Soft pipeline, can be realized above-mentioned function, and the application is not particularly limited this.
The temperature of the cold air and outside air temperature are almost the same, after entering caloic and taking off in white device ontology 8,
Since the temperature of the weary steam of washing slag water in heat exchanger tube is higher, generally at 65~80 degree or so, described heat exchanger tube itself it is thermally conductive
Performance is splendid, and the heat passed out in cold air absorption heat-exchange pipe, its own temperature is gradually increasing, and the washing slag water in heat exchanger tube is weary
Vapor (steam) temperature gradually decreases, and slides along the inner wall of heat exchanger tube into collecting tank with Water vapor condensation at droplet.
Cooling water is sprayed by spray assemblies in the application and cold wind pressure fan provides cold air and mentions for the weary steam of washing slag water
For water cooling and air-cooled two kinds of schemes that cool, the condensed water being precipitated, the punching are collected while steam cooling weary for washing slag water
Temperature when the weary discharge of steam of pulp water is lower, and water content therein is lower；Due to limited conditions, when the temperature of the weary steam of washing slag water
The cost for continuing cooling when being reduced to 50 degree or so is excessively high, and 50 degree or less whens the moisture that can be precipitated that continues to cool down it is also more next
Fewer, carrying out discharge when thus by the weary steam cooling of washing slag water to 50~54 degree or so is the highest scheme of cost performance, can either
Achieve the purpose that no white cigarette or few white cigarette, additionally it is possible to recycle great lot of water resources, and further decrease the pollution of discharge
Object content.
Preferably, the tube sheet 22 top be arranged sewage draining exit 23, cold air enter caloic take off in white device ontology 8 with
Afterwards, continue with the working time, have the pollutants such as some condensed waters, dust granule and gradually fall after rise and be deposited on tube sheet, institute
To need periodically cleaning tube sheet, i.e., the pollutant on tube sheet is expelled to by caloic by sewage draining exit 23 and taken off other than white device ontology 8.
In one preferred embodiment, it is taken off in the caloic and is provided with dry mixture air-introduced machine at the top of white device ontology 8
9, the cold sky outside the weary steam 6 of washing slag water and heat exchanger tube 21 inside heat exchanger tube 21 is aspirated by the dry mixture air-introduced machine 9
Gas.
The dry mixture air-introduced machine can select existing blower in this field, can be realized above-mentioned function, this
Application is not particularly limited this.
The weary steam 6 of washing slag water after escaping in heat exchanger tube, mixes upwards with the cold air outside heat exchanger tube, is formed dry
Gaseous mixture 10, the temperature of dry mixture 10 can be reduced to 52 degree or so at this time, side by side via the unified suction of dry mixture air-introduced machine 9
Out into ambient atmosphere.
Preferably, at the top of the heat exchanger tube, it is provided with temperature tachograph 11 below dry mixture air-introduced machine 9, leads to
Excess temperature tachograph 11 can air themperature at real-time monitoring dry mixture air-introduced machine 9 and flow velocity, the temperature at this it is excessively high
When, when being higher than 53 degree such as temperature, control spray assemblies 7 increase spray flow, and control cold wind pressure fan 15 increases intake.And it is described
The weary steam of blast furnace slag quenching water, which takes off in white improvement and water-saving system, is additionally provided with adjusting control module, which receives temperature
The flow velocity and temperature information that degree 11 real-time detection of tachograph obtains, it is automatic to control in conjunction with the external conditions information such as current outdoor temperature
The weary steam of blast furnace slag quenching water processed takes off rotational flow fan, spray assemblies, dry mixture air-introduced machine, cold wind in white improvement and water-saving system and send
The working condition of blower, it is ensured that the weary steam of the blast furnace slag quenching water takes off white improvement and water-saving system is constantly in reasonable working condition
In.
The temperature tachograph can select existing temperature tachograph in this field, can be realized above-mentioned function,
The application is not particularly limited this.
In one preferred embodiment, it as shown in Fig. 2, Fig. 3, is taken off in white device ontology 8 in caloic, the heat exchanger tube
21 are divided into multiple groups, i.e., multiple tube bank groups, it is preferable that A, B, C, D4 are equipped in the frame 19 that caloic takes off white device ontology 8
Tube bank group, each tube bank group can individually transport installation, and muti-piece liner bone plate 18 and more is both provided with around each tube bank group
The tube bank group is fixed as an entirety by liner bone plate 18 and fixed plate 20, and guarantees therein change by block fixed plate 20
Heat pipe will not relative displacement；
Preferably, the liner bone plate 18 is vertically arranged, and length extending direction is consistent with the extending direction of heat exchanger tube, institute
It is horizontally disposed to state fixed plate 20, is fixed on liner bone plate 18, to further enhance the connection between each liner bone plate 18
Intensity improves the integral strength of each tube bank group；
Preferably, the tube sheet 22 is also equipped with 4 pieces, and a tube sheet 22 is both provided with below each tube bank group, multiple
Tube sheet 22 is tightly attached to each other, it is ensured that does not have the weary steam 6 of washing slag water at its connection gap and passes through.
It is highly preferred that the liner bone plate 18 for closing on frame 19 is arranged in frame 19, it is integrated with the consolidation of frame 19,
The whole intensity of white device ontology 8 is taken off to further enhance caloic, it is ensured that its intensity can satisfy requirement.The caloic is taken off
Heat exchanger tube in white device ontology 8 is divided into 4 fixed tube bank groups, can either be convenient to in-site installation, simplifies installation process, it is not necessary to
It fixes heat exchanger tube one by one at the construction field (site), provides construction efficiency, additionally it is possible to the convenience of equipment conveying is taken into account, if caloic taken off
White device ontology 8 is complete whole as one, and since its volume weight is excessive, whole progress is difficult in existing technical situation
Transport, the above problem can be then solved perfectly by being set to 4 tube bank groups.
In one preferred embodiment, as shown in Figure 4, spiral goove is offered on the inner wall of the heat exchanger tube
The depth of slot, spiral grooves is 2mm or so, and the weary steam 6 of washing slag water is after entering heat exchanger tube, in the work of spiral grooves
It under, is gradually increasing in a manner of screw, to extend the weary steam 6 of spiral washing slag water and cool ambient air heat exchange
Time, additionally it is possible to increase heat transfer efficiency, to greatly improve exchange capability of heat；
It is further preferred that the outside of the heat exchanger tube is provided with thermofin, the thermofin journey helical form, thus
The contact area for entering cold air and heat exchanger tube that caloic takes off in white device ontology 8 is increased, heat transfer efficiency is increased.
In one preferred embodiment, it includes surrounding sealing, upper and lower ends opening that the caloic, which takes off white device ontology 8,
Shell is placed, the fixed heat exchanger tube in the shell；
The caloic take off white device pedestal 5 include surrounding and lower end all seal, the shell of upper end opening, in the shell as
Store the cavity of the weary steam of washing slag water；
It is de- that the upper end consolidation that the caloic takes off the lower end of white device ontology 8 and caloic takes off white device pedestal 5 is integrated composition caloic
White device, the cavity that caloic takes off white device inner hollow are divided into two parts up and down by tube sheet 22；
The weary steam inlet of washing slag water is offered in the side that the caloic takes off white device pedestal 5, the weary steam of washing slag water is drawn
Pipe 3 is consolidated by the side that the side and the caloic take off white device pedestal 5, the matter take off white 5 bottom of device pedestal be provided with by
Collecting tank made of the shell surrounds offers fairlead in the bottom of collecting tank on the shell, to will be in collecting tank
Water is led in water treatment facilities；Cold air air inlet is offered in the side that the caloic takes off white device ontology 8, the cold wind connects
It threads a pipe and 12 is consolidated by the side that the cold air air inlet and the caloic take off white device ontology 8；
The caloic takes off the top opening of white device ontology 8, and the weary steam of washing slag water and cold air all take off white device from the caloic
The top of ontology 8 is discharged, and in the weary steam of washing slag water after escaping in heat exchanger tube, the weary steam of washing slag water is mixed to form with cold air
Dry mixture is discharged under the action of dry mixture air-introduced machine 9 from the top that caloic takes off white device ontology 8 together.
In one preferred embodiment, as shown in Figure 5, the spray assemblies include spray head 71 and jet pipe 72,
In, spray head has multiple, and each spray head is all connected with jet pipe 72, and cooling water to be sprayed is conveyed into spray head 71 by jet pipe 72；
The spray head is provided with two layers, and the spray head 71 positioned at lower layer sprays cooling water both facing to lower section, the spray positioned at upper layer
First 71 spray cooling water both facing to side, in order to promote condensed water and cooling water more to take off white device pedestal 5 close to caloic
Inner sidewall is convenient to the sincere droplet of shape and slides from side wall to collecting tank；The upper layer is provided with 12 spray heads, according to circumferential row
Column spray cooling water towards outside, the lower layer are provided with 41 spray heads, is arranged in circular array, downwards sprinkling cooling
Water.
The utility model also provides a kind of weary steam of blast furnace slag quenching water and takes off white improvement and water-saving method, and this method includes as follows
Step:
The weary steam 6 of washing slag water in slag runner 1 is led into heat by the weary steam fairlead 3 of washing slag water by rotational flow fan 2
Matter takes off in white device pedestal 5；The temperature of the weary steam 6 of washing slag water is 95 degree or so at this time,
The weary steam 6 of washing slag water is sprayed by spray assemblies 7, spray assemblies 7 are passed through in the washing slag water upward loss of weary steam 6
It enters in heat exchanger tube 21 later；
Taken off by cold wind connecting pipe 12 to caloic and inject cold air in white device ontology 8, cold air outside heat exchanger tube to
Upper movement continues heat exchange with the weary steam 6 of washing slag water inside heat exchanger tube, further cools down to the weary steam 6 of washing slag water, makes wherein
Water vapor condensation and be back to caloic along heat transfer tube wall and take off in white device pedestal 5 so that in dry mixture air-introduced machine 9
The temperature for the dry mixture 10 that place obtains is reduced to 50~55 degrees Celsius.
Embodiment:
1080m3The output of steel of the blast furnace of dischargeable capacity is 4000 ton per days, and the production quantity of slag is 1600 ton per days, rinses steel daily
Washing slag water used in slag is 1246 tons；Wherein, about 250 tons of washing slag waters directly pass through smoke stack emission in the form of the weary steam of washing slag water
Into atmosphere, the weary steam of the washing slag water is monitored, obtained specific targets are as follows:
Mean temperature when the weary steam of washing slag water is discharged from chimney is 93 degrees Celsius, particulate matter when being discharged from chimney
Mean concentration is 40mg/Nm3, sulfur dioxide (SO2) mean concentration be 160mg/Nm3, nitrogen oxides (NOX) mean concentration is
300mg/Nm3；On fine daytime, in the range of apart from chimney 10km, it is visually able to observe that apparent white cigarette.
The weary steam of blast furnace slag quenching water provided by the present application is installed near the slag runner of above-mentioned blast furnace and takes off white improvement and water-saving system
System, caloic is taken off on the ground that white device pedestal is fixed near slag runner, and the weary steam fairlead of washing slag water is installed above slag runner, is led to
It crosses washing slag water weary steam fairlead the weary steam of washing slag water is introduced into caloic and take off in white device pedestal, take off white device base interior in caloic
Bottom is provided with collecting tank, and inside top is provided with spray assemblies；It takes off to be equipped with above white device pedestal in caloic and communicate therewith
Caloic take off white device ontology, taken off in white device ontology in caloic and be provided with tube sheet and heat exchanger tube, wherein heat exchanger tube totally 1600, every
Heat exchanger tube internal diameter is 80mm, all offers spiral grooves inside every heat exchanger tube, is all arranged outside every heat exchanger tube
There is thermofin；White device body side is taken off in caloic and is additionally provided with cold wind connecting pipe, to the gap outside heat exchanger tube
Inject cold air；
The weary steam of washing slag water in slag runner caloic is led to by the weary steam fairlead of washing slag water by rotational flow fan to take off
In white device pedestal, temperature of the weary steam of washing slag water when entering caloic and taking off in white device pedestal is 95 degree；Caloic is entered daily
The weary steam of washing slag water taken off in white device pedestal amounts to 28.8 ten thousand m3(standard atmospheric pressure)；
The daily amount of water sprayed of the spray assemblies is 19.2 ten thousand m3, after spraying the weary steam of washing slag water by spray assemblies 7,
The temperature of the weary steam of washing slag water is reduced to 85 degrees Celsius；
The weary steam of washing slag water enters in heat exchanger tube after passing through spray assemblies, takes off white device to caloic by cold wind connecting pipe
It is that heat exchanger tube and the weary steam of washing slag water cool that cold air is injected in ontology, wherein the injection rate of daily cold air is 6,000,000
m3(standard atmospheric pressure)；So that finally obtaining 52 degrees Celsius of dry mixture, and it is drained into atmosphere.
156 tons of condensed water can be recycled from collecting tank daily, i.e., the water collected in collecting tank sprays cold with spray assemblies
But the difference of water is 156 tons.
Pollutant load monitoring result is as follows from the washing slag water weary steam being discharged in heat exchanger tube:
Particulate matter mean concentration is 10mg/Nm3, sulfur dioxide (SO2) mean concentration be 35mg/Nm3, nitrogen oxides (NOX)
Mean concentration is 50mg/Nm3, and on fine daytime, in the range of apart from chimney 10km, obvious white cigarette is had no, in distance
Also obvious white cigarette is had no in the range of chimney 1km；
Through the foregoing embodiment it is found that be mounted with the weary steam of blast furnace slag quenching water provided by the present application take off it is white improvement and it is water-saving
After system, water resource can be significantly saved, directly passes through smoke stack emission into atmosphere from the form of the weary steam of washing slag water
About 250 tons of washing slag waters in recycle 156 tons, the rate of recovery is at more than half, to eliminate white cigarette/white Long Xianxiang, additionally it is possible to reduce
The discharge of pollutant, so that pollutant discharge amount is far below the discharge standard of national regulation.
It combines preferred embodiment above the utility model is illustrated, but these embodiments are only models
Example property, only play the role of illustrative.On this basis, a variety of replacements and improvement can be carried out to the utility model, these
It each falls in the protection scope of the utility model.
Claims (10)
1. a kind of weary steam of blast furnace slag quenching water takes off white improvement and water-saving system, which is characterized in that the system includes the weary steaming of washing slag water
Vapour fairlead (3), one end are located above slag runner (1), and the other end is connected to caloic and takes off white device pedestal (5)；
The weary steam of washing slag water (6) in slag runner (1) enters caloic by the weary steam fairlead (3) of washing slag water and takes off white device pedestal
(5) in；
The caloic takes off white device pedestal (5) and is internally provided with the cavity for accommodating the weary steam of washing slag water (6),
It is taken off in the caloic and is provided with the caloic being connected with the cavity at the top of white device pedestal (5) and takes off white device ontology (8),
Because of cooled cooling during the weary steam of washing slag water (6) moves up in caloic takes off white device ontology (8), wherein
Water vapor condensation at liquid and be back to caloic and take off in white device pedestal (5).
2. the weary steam of blast furnace slag quenching water according to claim 1 takes off white improvement and water-saving system, which is characterized in that
It is taken off in white device pedestal (5) in the caloic and is additionally provided with spray assemblies (7), be used to take off white device pedestal to the caloic
(5) cavity in sprays cooling water, the cooling weary steam of washing slag water (6) therein.
3. the weary steam of blast furnace slag quenching water according to claim 1 takes off white improvement and water-saving system, which is characterized in that
Rotational flow fan (2) are provided on the weary steam fairlead (3) of the washing slag water, are used for the weary steam of washing slag water constantly
(6) caloic is led to from slag runner (1) takes off white device pedestal (5)；
Differential pressure flow meter (4) are additionally provided on the weary steam fairlead (3) of the washing slag water, to the weary steaming of monitoring record washing slag water
The intake of vapour (6).
4. the weary steam of blast furnace slag quenching water according to claim 1 takes off white improvement and water-saving system, which is characterized in that
It takes off white device ontology (8) in the caloic to be internally provided with heat exchanger tube (21), the washing slag water that caloic takes off in white device pedestal (5) is weary
Steam (6) is moved upwards up to the top that caloic takes off white device ontology (8) inside heat exchanger tube (21), in the process Water vapor condensation
At liquid and caloic is back to along the inner wall of heat exchanger tube (21) to take off in white device pedestal (5).
5. the weary steam of blast furnace slag quenching water according to claim 4 takes off white improvement and water-saving system, which is characterized in that
White device ontology (8) inside is taken off in caloic, tube sheet (22) are provided at white device pedestal (5) taking off close to caloic, by described
Tube sheet is fixed heat exchanger tube (21), and obstructs the weary steam of washing slag water (6), prevents the weary steam of washing slag water (6) on the outside of heat exchanger tube (21)
Loss to caloic takes off at the top of white device ontology (8).
6. the weary steam of blast furnace slag quenching water according to claim 4 takes off white improvement and water-saving system, which is characterized in that
White device ontology (8) lower end side is taken off in the caloic and is provided with cold wind connecting pipe (12), passes through the cold wind communicating pipe
Road (12) takes off to caloic injects cold air in white device ontology (8), cold air along moving up outside heat exchanger tube (21), change by absorption
The heat that the weary steam of washing slag water (6) carries in heat pipe.
7. the weary steam of blast furnace slag quenching water according to claim 4 takes off white improvement and water-saving system, which is characterized in that
It is taken off in the caloic and is provided with dry mixture air-introduced machine (9) at the top of white device ontology (8), pass through the dry mixture air-introduced machine
(9) cold air of the internal weary steam of washing slag water (6) of suction heat exchanger tube (21) and heat exchanger tube (21) outside.
8. the weary steam of blast furnace slag quenching water according to claim 2 takes off white improvement and water-saving system, which is characterized in that
The system further includes the spray pump (17) of setting on the ground, and the spray pump (17) passes through spray pipeline (16) and spray
Component (7) is connected, and provides cooling water for the spray assemblies (7).
9. the weary steam of blast furnace slag quenching water according to claim 6 takes off white improvement and water-saving system, which is characterized in that
The system further includes the cold wind pressure fan (15) of setting on the ground, and the cold wind pressure fan (15) passes through cold-air duct
(14) it is connected with cold wind connecting pipe (12), provides cold air for cold wind connecting pipe (12).
10. the weary steam of blast furnace slag quenching water according to claim 9 takes off white improvement and water-saving system, which is characterized in that
The system further includes the cold air duct bracket (13) to support cold-air duct (14).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920132409.7U CN209605612U (en) | 2019-01-25 | 2019-01-25 | The weary steam of blast furnace slag quenching water takes off white improvement and water-saving system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336639A (en) * | 2020-03-03 | 2020-06-26 | 平罗县荣昌碳化硅有限公司 | Exhaust system of silicon carbide smelting workshop |
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2019
- 2019-01-25 CN CN201920132409.7U patent/CN209605612U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336639A (en) * | 2020-03-03 | 2020-06-26 | 平罗县荣昌碳化硅有限公司 | Exhaust system of silicon carbide smelting workshop |
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Address after: 301800 No.20 Shunyuan commercial street, Beijing Tianjin New Town, Baodi District, Tianjin Patentee after: Zhongchuang Chuang Neng environmental protection technology (Tianjin) Co.,Ltd. Patentee after: Baoding Jinneng heat exchange equipment Co., Ltd. Address before: 301800 No.20 Shunyuan commercial street, Beijing Tianjin New Town, Baodi District, Tianjin Patentee before: Xindadong energy saving and environmental protection technology (Tianjin) Co.,Ltd. Patentee before: Baoding Jinneng heat exchange equipment Co., Ltd. |