CN106966446A - A kind of device and method of utilization blast furnace slag Treatment of Wastewater in Coking - Google Patents
A kind of device and method of utilization blast furnace slag Treatment of Wastewater in Coking Download PDFInfo
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- CN106966446A CN106966446A CN201710236014.7A CN201710236014A CN106966446A CN 106966446 A CN106966446 A CN 106966446A CN 201710236014 A CN201710236014 A CN 201710236014A CN 106966446 A CN106966446 A CN 106966446A
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- blast furnace
- furnace slag
- convex disks
- waste water
- cooling air
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
- C21B3/08—Cooling slag
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/04—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste liquors, e.g. sulfite liquors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Furnace Details (AREA)
Abstract
The invention discloses a kind of device and method of utilization blast furnace slag Treatment of Wastewater in Coking, described device includes the first convex disks, the second convex disks, the first pipeline and second pipe；The first convex disks inner hollow, upper surface is provided with several coking chemical waste water spray apertures；The second convex disks inner hollow, upper surface is provided with several cooling air spray orifices；First convex disks are above the second convex disks, and diameter of the diameter less than the second convex disks of the first convex disks；Described second pipe one end and the bottom centre of the second convex disks are fixedly linked, and first pipeline is fixedly linked through the bottom centre of second pipe and the second convex disks and the first convex disks；It is coking chemical waste water runner, the hollow internal connection coking chemical waste water spray apertures that coking chemical waste water runner passes through the first convex disks in first pipeline；Cooling air runner is formed between the outer surface of the second pipe inner surface and the first pipeline.
Description
Technical field
The invention belongs to technical field of ferrous metallurgy, in particular it relates to which a kind of utilize blast furnace Slag treatment coking
The device and method of waste water.
Background technology
Blast furnace cinder is the high temperature waste residue produced during Ferrous Metallurgy, and its temperature is at 1450 DEG C or so, and slag per ton contains
Sensible heat 260 × 103~1880 × 103KJ, is roughly equivalent to the calorific value released during 60kg standard coal combustions.Current blast furnace both at home and abroad
Slag treatment method be will blast furnace slag flow into pond in enter water-filling extraction processing, product as cement admixture.But traditional water
Technique of quenching have that such as water resources consumption is serious, sulfurous gas discharge capacity is big, gained grain slag still needs to further dehydrate and
High-temperature slag waste heat such as can not reclaim at the drawback substantially.
For the shortcoming of blast furnace cinder water quenching technique, 1970s, foreign countries just had begun working on dry type chilling granulation
The method of blast furnace slag, mainly there is wind quenching method and centrifugal granulation method, and the two is all first to crush liquid blast furnace, is solidified as small
After grain, then the method for taking means to reclaim its sensible heat, blast furnace slag dry type chilling granulation, the glass rate of fine granularity clinker is high,
The production requirement of high-quality cement can be met.The granulation of liquid blast furnace is for the recycling of discarded object and showing for liquid blast furnace
Recuperation of heat is all significant, therefore, and a kind of energy consumption of research is low, and granulation effect is good, simple in construction, and the high liquid of reliability is high
Slag granulation method is very necessary.
Coking chemical waste water is a kind of typical poisonous organic wastewater with difficult degradation thereby.Coking chemical waste water essentially from coke oven gas primary-cooling and
Industrial water and steam condensation waste water during coking production.Pollutant concentration is high in coking chemical waste water, many in coking chemical waste water
PAH is not only difficult to degrade, and usual or strong carcinogen, and environment is caused also directly to threaten while severe contamination
To human health.Shown by research, contained organic matter can be decomposed completely at 400 DEG C or so in coking chemical waste water, after processing
Harmful substance contents in waste water are greatly reduced, and can meet wastewater discharge standard.
The content of the invention
To solve problem above, the present invention provides a kind of device of utilization blast furnace slag Treatment of Wastewater in Coking, utilizes blast furnace slag
Contained calorific value is handled coking chemical waste water, can decompose the toxic organic compound in coking chemical waste water, blast furnace has been saved again
Water resource needed for Slag treatment, while being granulated using granulation apparatus to blast furnace slag, the value of blast furnace slag after raising processing.
To reach above-mentioned purpose, present invention employs following technical scheme：
A kind of device of utilization blast furnace slag Treatment of Wastewater in Coking, described device includes the first convex disks 4, the second convex and justified
Disk 6, the first pipeline 8 and second pipe 12；
The inner hollow of first convex disks 4, upper surface is provided with several coking chemical waste water spray apertures 3；Described second
The inner hollow of convex disks 6, upper surface is provided with several cooling air spray orifices 5；First convex disks 4 are in the second convex disks
Above 6, and diameter of the diameter less than the second convex disks 6 of the first convex disks 4；
Described one end of second pipe 12 and the bottom centre of the second convex disks 6 are fixedly linked, and first pipeline 8 is passed through
The bottom centre of second pipe and the second convex disks 6 and the first convex disks is fixedly linked；It is coking chemical waste water in first pipeline 8
Runner 7, the hollow internal connection coking chemical waste water spray apertures 3 that coking chemical waste water runner 7 passes through the first convex disks；The second pipe
Cooling air runner 10 is formed between the outer surface of 12 inner surfaces and the first pipeline 8, cooling air runner 10 passes through the second convex
The hollow internal connection cooling air spray orifice 5 of disk；Coking chemical waste water runner 7 is connected with coking chemical waste water water source 15；Cooling air stream
Road 10 is connected with cooling air source 16；
First pipeline 8 and second pipe 12 constitute hollow axle, and hollow axle is driven by motor 11.
Further, described device also includes seal closure 17, and the convex disks 6 of the first convex disks 4 and second are set
In seal closure 17, just the first convex disks 4 are set at the top of seal closure 17 and also set up water at the top of slag inlet 1, seal closure
Steam (vapor) outlet 2, bottom sets slag notch 9.
Preferably, the slag inlet is shaped as circle, and the diameter of slag inlet is identical with the diameter of the first convex disks.
Preferably, the coking chemical waste water runner 7 is connected by the first sealed bearings 13 with coking chemical waste water water source 15；It is described cold
But air flow channel 10 is connected by the second sealed bearings 14 with cooling air source 16.
Preferably, the first pipeline is nested in inside second pipe, the central axis of the first pipeline and second pipe with it is hollow
The central axis of rotating shaft is identical.
Present invention also offers based on a kind of above-mentioned method of the device of utilization blast furnace slag Treatment of Wastewater in Coking, methods described
Comprise the following steps：
1) coking chemical waste water and the blast furnace slag that the first convex disks spray carry out convection current spray, blast furnace slag is cooled to 700~
1000 DEG C, the organic compound combustion being granulated in blast furnace slag cooling procedure in the blast furnace slag being tentatively granulated, coking chemical waste water is decomposed, raw
Into CO2、H2O is discharged；
2) the second convex disks with the first convex disks coaxial rotating spray cooling air, using cooling air to preliminary
The blast furnace slag of granulation is further cooled down, cooling air and blast furnace slag convection heat transfer' heat-transfer by convection and convective drying, and further blast furnace slag is carried out
Cooling is granulated and is dried to obtain little particle blast furnace slag.
The present invention is handled blast furnace slag using two step method, and the first step is：Blast furnace slag is after slag inlet is fallen, first with Jiao
Change waste water and carry out convection current spray with blast furnace slag, blast furnace slag is cooled in 700~1000 DEG C, blast furnace slag cooling procedure and is granulated, it is burnt
The organic compound combustion changed in waste water is decomposed, and generates CO2、H2The materials such as O.Second step is：It is further to blast furnace slag using cooling air
Cooling, cooling air and blast furnace slag convection heat transfer' heat-transfer by convection and convective drying, further can carry out cooling granulation and drying to blast furnace slag.
Specifically, the present invention carries out two step method processing using punctured disk formula centrifuge to blast furnace slag, and centrifuge top has
Less first convex disks of one volume, first step processing, the first convex circle are carried out to blast furnace slag using the first convex disks
Disk is coking chemical waste water spray apertures of being gathered in steel, the first convex disks, passes through the hole upward spraying coking of the first convex disks
After slag inlet is fallen with coking chemical waste water convective motion, during centrifuge high-speed rotation, first occur for waste water, blast furnace slag
Convex disks also high-speed rotation, the coking chemical waste water sprayed out uniformly can be sprayed onto in blast furnace slag, and blast furnace slag is acted on by spray power, and four
Distribution landing is dissipated, blast furnace slag is decomposed by the organic compound combustion cooled down in preliminary granulation, coking chemical waste water, generates CO2、H2The things such as O
Matter.The second convex disks that one volume is relatively large in diameter are arranged at the bottom of centrifuge, and blast furnace slag is carried out using the second convex disks
Second step processing, the second convex disks are the jet hole that gathered in steel, the second convex disks, and the second convex disks are located at first
Surrounding below convex disks, the first convex disks and the second convex disks are fixedly connected integrally, can be rotated together, pass through
The hole of two convex disks is blown cooling air upwards, during centrifuge high-speed rotation, and the second convex disks also turn at a high speed
Dynamic, blast furnace slag is after the first convex disks surrounding is fallen, and the cooling air that the holes of the second convex disks is blown out upwards is to height
Clinker is cooled down and dried, and blast furnace slag is further granulated.
The rotating shaft of punctured disk formula centrifuge is designed using hollow mode, and the inside of hollow axle is used as coking chemical waste water and cold
But the flow channel of air.Hollow axle is made up of the first pipeline and second pipe, and the first internal diameter of the pipeline is smaller, in second pipe
Footpath is larger, and the first pipeline is nested in inside second pipe, in the central axis and hollow axle of the first pipeline and second pipe
Heart axis is identical.First pipeline is as coking chemical waste water runner, between the inner surface of second pipe and the outer surface of the first pipeline
Position is cooling air runner.First pipeline is connected by the first sealed bearings with outside coking chemical waste water water source, and second
Pipeline is connected by the second sealed bearings with outside cooling air source of the gas.Hollow axle and motor connection.
Centrifuge is enclosed in a seal closure, and slag inlet is left on seal closure top, and the upper side of seal closure leaves water
Steam and hot air outlet, the lower side of seal closure leave slag notch.
It is an advantage of the current invention that
1st, the technology provided according to the present invention, blast furnace slag is first carried out after slag inlet is fallen with coking chemical waste water with blast furnace slag
Convection current is sprayed, and blast furnace slag is cooled into 700~1000 DEG C, carries out burning disposal to coking chemical waste water using the calorific value of blast furnace slag, both
Blast furnace slag is cooled, preliminary granulation has been carried out to blast furnace slag, make use of the calorific value of blast furnace slag to incinerate in coking chemical waste water again
Toxic organic compound, has saved the processing cost of blast furnace slag and coking chemical waste water.
2nd, the technology provided according to the present invention, the cooling air sprayed using the second convex disks is further cold to blast furnace slag
But, cooling air and blast furnace slag convection heat transfer' heat-transfer by convection and convective drying, further cooling is carried out to blast furnace slag and is granulated and dries, is improved
The glass rate of blast furnace slag, and clinker drying, it is not necessary to processing is dried, dry expense has been saved.
3rd, harmful substance contents are low in the water vapour produced after handling, heat and moisture content recoverable in water vapour,
Heat and water resource are saved.
Brief description of the drawings
Fig. 1 is the vertical cross section of apparatus of the present invention；
Fig. 2 is the top view of apparatus of the present invention；
Reference：1 is slag inlet；2 be steam outlet；3 be coking chemical waste water spray apertures；4 be the first convex disks；5
For cooling air spray orifice；6 be the second convex disks；7 be coking chemical waste water runner；8 be the first pipeline；9 be slag notch；10 be cooling
Air flow channel；11 be motor；12 be second pipe；13 be the first sealed bearings；14 be the second sealed bearings；15 be coking chemical waste water
Water source；16 be cooling air source of the gas；17 be seal closure.
Embodiment
With the drawings and specific embodiments, the present invention is further detailed explanation below.
Using equipment as shown in Figure 1 and Figure 2 to carrying out two step method processing to blast furnace slag, the first step is：Blast furnace slag is from circle
Slag inlet 1 fall after, first carries out convection current spray with coking chemical waste water and blast furnace slag, blast furnace slag is cooled to 700~1000 DEG C, height
It is granulated during cooling of furnace slag, the organic compound combustion in coking chemical waste water is decomposed, generates CO2、H2The materials such as O.Second step is：Using
Cooling air, can be further to blast furnace to the further cooling of blast furnace slag, cooling air and blast furnace slag convection heat transfer' heat-transfer by convection and convective drying
Slag carries out cooling granulation and drying.
Two step method processing, centrifuge top are carried out to blast furnace slag using punctured disk formula centrifuge as shown in Figure 1 and Figure 2
There are less first convex disks 4 of a volume, first step processing is carried out to blast furnace slag using the first convex disks 4, first is convex
The diameter of shape disk is identical with the diameter of slag inlet, and the material of the first convex disks 4 is to be gathered in steel, the first convex disks 4
Coking chemical waste water spray apertures 3, by the upward spraying coking chemical waste water of coking chemical waste water spray apertures 3 of the first convex disks, blast furnace slag is from circle
After the slag inlet 1 of shape is fallen, occur convective motion, during centrifuge high-speed rotation, the first convex disks with coking chemical waste water
Also high-speed rotation, the coking chemical waste water sprayed out uniformly can be sprayed onto in blast furnace slag, and blast furnace slag is acted on by spray power, and four dissipate distribution drop
Fall, blast furnace slag is tentatively granulated by cooling, and the organic compound combustion in coking chemical waste water is decomposed, and generates CO2、H2The materials such as O, first is convex
The coking chemical waste water amount that the upward spraying of shape disk 4 goes out flows downwardly into the 10%~30% of blast furnace slag quality for circular slag inlet 1.From
The second larger convex disks 6 of one volume are arranged at the bottom of scheming, and blast furnace slag is carried out at second step using the second convex disks 6
Reason, the material of the second convex disks 6 is gathered in steel, the second convex disks 6 cooling air spray orifice 5, the second convex disks 6
The surrounding below the first convex disks 4, the first convex disks 4 are fixedly connected integrally with the second convex disks 6, can be turned together
It is dynamic, cooling air is blown by the cooling air spray orifice 5 of the second convex disks 6 upwards, cooling air straying quatity is 10~100L
Air/Kg slags, during centrifuge high-speed rotation, the second convex disks 6 also high-speed rotation, blast furnace slag is from the first convex disks
After 4 surrounding is fallen, the cooling air that the cooling air spray orifice 5 of the second convex disks 6 is blown out upwards is cold to blast furnace slag progress
But and dry, blast furnace slag is further granulated.
The rotating shaft of punctured disk formula centrifuge is designed using hollow mode, and the inside of hollow axle is used as coking chemical waste water and cold
But the flow channel of air.There are the first pipeline 8 and second pipe 12 inside hollow axle, the internal diameter of the first pipeline 8 is smaller, second
The internal diameter of pipeline 12 is larger, and the first pipeline 8 is nested in the center of the inside of second pipe 12, the first pipeline 8 and second pipe 12
Axis is identical with the central axis of hollow axle.First pipeline 8 as coking chemical waste water runner 7, the inner surface of second pipe 12 and
Position between the outer surface of first pipeline 8 is cooling air runner 10.First pipeline 8 passes through the first sealed bearings 13 and outside
Coking chemical waste water water source 15 be connected, second pipe 12 is connected by the second sealed bearings 14 with outside cooling air source of the gas 16
It is logical.Hollow axle is connected with motor 11, and the velocity of rotation of hollow axle is 100~300 revs/min.
Centrifuge is enclosed in a seal closure 17, and slag inlet 1 is left on seal closure top, and the upper side of seal closure leaves
Steam outlet 2, water vapour flows out automatically from steam outlet 2, water vapour waste heat and the recovery of water resource into next step
System, the lower side of seal closure leaves slag notch 9, and the little particle blast furnace slag after cooling flows out automatically from slag notch 9.
Embodiment 1：
Simultaneously adapting device schematic diagram 1, a kind of 2 pairs of devices of utilization blast furnace slag Treatment of Wastewater in Coking are done further for citing below
Explanation.
Using equipment as shown in Figure 1 and Figure 2 to carrying out two step method processing to blast furnace slag, the first step is：Blast furnace slag is from circle
Slag inlet 1 fall after, first carries out convection current spray with coking chemical waste water and blast furnace slag, blast furnace slag is cooled to 700~1000 DEG C, height
It is granulated during cooling of furnace slag, the organic compound combustion in coking chemical waste water is decomposed, generates CO2、H2The materials such as O.Second step is：Using
Cooling air, can be further to blast furnace to the further cooling of blast furnace slag, cooling air and blast furnace slag convection heat transfer' heat-transfer by convection and convective drying
Slag carries out cooling granulation and drying.
Two step method processing, centrifuge top are carried out to blast furnace slag using punctured disk formula centrifuge as shown in Figure 1 and Figure 2
There are less first convex disks 4 of a volume, first step processing is carried out to blast furnace slag using the first convex disks 4, first is convex
The diameter of shape disk is identical with the diameter of slag inlet, and the material of the first convex disks 4 is to be gathered in steel, the first convex disks 4
Coking chemical waste water spray apertures 3, by the upward spraying coking chemical waste water of coking chemical waste water spray apertures 3 of the first convex disks, blast furnace slag is from circle
After the slag inlet 1 of shape is fallen, occur convective motion, during centrifuge high-speed rotation, the first convex disks with coking chemical waste water
Also high-speed rotation, the coking chemical waste water sprayed out uniformly can be sprayed onto in blast furnace slag, and blast furnace slag is acted on by spray power, and four dissipate distribution drop
Fall, blast furnace slag is tentatively granulated by cooling, and the organic compound combustion in coking chemical waste water is decomposed, and generates CO2、H2The materials such as O, first is convex
The coking chemical waste water amount that the upward spraying of shape disk 4 goes out flows downwardly into the 10% of blast furnace slag quality for circular slag inlet 1.Centrifuge
The second larger convex disks 6 of one volume are arranged at bottom, and second step processing is carried out to blast furnace slag using the second convex disks 6, the
The material of two convex disks 6 is steel, and gather in the second convex disks 6 cooling air spray orifice 5, and the second convex disks 6 are located at the
Surrounding below one convex disks 4, the first convex disks 4 are fixedly connected integrally with the second convex disks 6, can be rotated together,
Cooling air is blown by the cooling air spray orifice 5 of the second convex disks 6 upwards, cooling air straying quatity is 100L air/Kg
Slag, during centrifuge high-speed rotation, the second convex disks 6 also high-speed rotation, surrounding of the blast furnace slag from the first convex disks 4
After falling, the cooling air that the cooling air spray orifice 5 of the second convex disks 6 is blown out upwards is cooled down and done to blast furnace slag
Dry, blast furnace slag is further granulated.
The rotating shaft of punctured disk formula centrifuge is designed using hollow mode, and the inside of hollow axle is used as coking chemical waste water and cold
But the flow channel of air.There are the first pipeline 8 and second pipe 12 inside hollow axle, the internal diameter of the first pipeline 8 is smaller, second
The internal diameter of pipeline 12 is larger, and the first pipeline 8 is nested in the center of the inside of second pipe 12, the first pipeline 8 and second pipe 12
Axis is identical with the central axis of hollow axle.First pipeline 8 as coking chemical waste water runner 7, the inner surface of second pipe 12 and
Position between the outer surface of first pipeline 8 is cooling air runner 10.First pipeline 8 passes through the first sealed bearings 13 and outside
Coking chemical waste water water source 15 be connected, second pipe 12 is connected by the second sealed bearings 14 with outside cooling air source of the gas 16
It is logical.Hollow axle is connected with motor 11, and the velocity of rotation of hollow axle is 300 revs/min.
Centrifuge is enclosed in a seal closure 17, and slag inlet 1 is left on seal closure top, and the upper side of seal closure leaves
Steam outlet 2, water vapour flows out automatically from steam outlet 2, water vapour waste heat and the recovery of water resource into next step
System, after testing, the harmful substance contents in water vapour are less, and wherein COD contents are less than 20PPM, meet national corresponding row
Standard is put, the lower side of seal closure leaves slag notch 9, the little particle blast furnace slag after cooling flows out automatically from slag notch 9, through inspection
Survey, the diameter of little particle blast furnace slag is less than 10mm, and glass rate is more than 97%, and water content is less than 1%, belongs to cement high-quality
Raw material.
Embodiment 2
Simultaneously adapting device schematic diagram 1, a kind of 2 pairs of methods of utilization blast furnace slag Treatment of Wastewater in Coking are done further for citing below
Explanation.
Using equipment as shown in Figure 1 and Figure 2 to carrying out two step method processing to blast furnace slag, the first step is：Blast furnace slag is from circle
Slag inlet 1 fall after, first carries out convection current spray with coking chemical waste water and blast furnace slag, blast furnace slag is cooled to 700~1000 DEG C, height
It is granulated during cooling of furnace slag, the organic compound combustion in coking chemical waste water is decomposed, generates CO2、H2The materials such as O.Second step is：Using
Cooling air, can be further to blast furnace to the further cooling of blast furnace slag, cooling air and blast furnace slag convection heat transfer' heat-transfer by convection and convective drying
Slag carries out cooling granulation and drying.
Two step method processing, centrifuge top are carried out to blast furnace slag using punctured disk formula centrifuge as shown in Figure 1 and Figure 2
There are less first convex disks 4 of a volume, first step processing is carried out to blast furnace slag using the first convex disks 4, first is convex
The diameter of shape disk is identical with the diameter of slag inlet, and the material of the first convex disks 4 is to be gathered in steel, the first convex disks 4
Coking chemical waste water spray apertures 3, by the upward spraying coking chemical waste water of coking chemical waste water spray apertures 3 of the first convex disks, blast furnace slag is from circle
After the slag inlet 1 of shape is fallen, occur convective motion, during centrifuge high-speed rotation, the first convex disks with coking chemical waste water
Also high-speed rotation, the coking chemical waste water sprayed out uniformly can be sprayed onto in blast furnace slag, and blast furnace slag is acted on by spray power, and four dissipate distribution drop
Fall, blast furnace slag is tentatively granulated by cooling, and the organic compound combustion in coking chemical waste water is decomposed, and generates CO2、H2The materials such as O, first is convex
The coking chemical waste water amount that the upward spraying of shape disk 4 goes out flows downwardly into the 30% of blast furnace slag quality for circular slag inlet 1.Centrifuge
The second larger convex disks 6 of one volume are arranged at bottom, and second step processing is carried out to blast furnace slag using the second convex disks 6, the
The material of two convex disks 6 is steel, and gather in the second convex disks 6 cooling air spray orifice 5, and the second convex disks 6 are located at the
Surrounding below one convex disks 4, the first convex disks 4 are fixedly connected integrally with the second convex disks 6, can be rotated together,
Cooling air is blown by the cooling air spray orifice 5 of the second convex disks 6 upwards, cooling air straying quatity is 10L air/Kg
Slag, during centrifuge high-speed rotation, the second convex disks 6 also high-speed rotation, surrounding of the blast furnace slag from the first convex disks 4
After falling, the cooling air that the cooling air spray orifice 5 of the second convex disks 6 is blown out upwards is cooled down and done to blast furnace slag
Dry, blast furnace slag is further granulated.
The rotating shaft of punctured disk formula centrifuge is designed using hollow mode, and the inside of hollow axle is used as coking chemical waste water and cold
But the flow channel of air.There are the first pipeline 8 and second pipe 12 inside hollow axle, the internal diameter of the first pipeline 8 is smaller, second
The internal diameter of pipeline 12 is larger, and the first pipeline 8 is nested in the center of the inside of second pipe 12, the first pipeline 8 and second pipe 12
Axis is identical with the central axis of hollow axle.First pipeline 8 as coking chemical waste water runner 7, the inner surface of second pipe 12 and
Position between the outer surface of first pipeline 8 is cooling air runner 10.First pipeline 8 passes through the first sealed bearings 13 and outside
Coking chemical waste water water source 15 be connected, second pipe 12 is connected by the second sealed bearings 14 with outside cooling air source of the gas 16
It is logical.Hollow axle is connected with motor 11, and the velocity of rotation of hollow axle is 100 revs/min.
Centrifuge is enclosed in a seal closure 17, and slag inlet 1 is left on seal closure top, and the upper side of seal closure leaves
Steam outlet 2, water vapour flows out automatically from steam outlet 2, water vapour waste heat and the recovery of water resource into next step
System, after testing, the harmful substance contents in water vapour are less, and wherein COD contents are less than 40PPM, meet national corresponding row
Standard is put, the lower side of seal closure leaves slag notch 9, the little particle blast furnace slag after cooling flows out automatically from slag notch 9, through inspection
Survey, the diameter of little particle blast furnace slag is less than 20mm, and glass rate is more than 96%, and water content is less than 1%, belongs to cement high-quality
Raw material.
It should be noted last that, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted.Although ginseng
The present invention is described in detail according to embodiment, it will be apparent to an ordinarily skilled person in the art that to the technical side of the present invention
Case is modified or equivalent substitution, and without departure from the spirit and scope of technical solution of the present invention, it all should cover in the present invention
Right among.
Claims (6)
1. a kind of device of utilization blast furnace slag Treatment of Wastewater in Coking, it is characterised in that described device includes the first convex disks
(4), the second convex disks (6), the first pipeline (8) and second pipe (12)；
First convex disks (4) inner hollow, upper surface is provided with several coking chemical waste water spray apertures (3)；Described second
Convex disks (6) inner hollow, upper surface is provided with several cooling air spray orifices (5)；First convex disks (4) are convex second
Above shape disk (6), and diameter of the diameter less than the second convex disks (6) of the first convex disks (4)；
Described second pipe (12) one end and the bottom centre of the second convex disks (6) are fixedly linked, and first pipeline (8) is worn
The bottom centre for crossing second pipe and the second convex disks (6) and the first convex disks is fixedly linked；It is Jiao in first pipeline (8)
Change waste water runner (7), the hollow internal connection coking chemical waste water spray apertures (3) that coking chemical waste water runner (7) passes through the first convex disks；
Cooling air runner (10), cooling air are formed between the outer surface of second pipe (12) inner surface and the first pipeline (8)
The hollow internal connection cooling air spray orifice (5) that runner (10) passes through the second convex disks；Coking chemical waste water runner (7) gives up with coking
Water water source (15) is connected；Cooling air runner (10) is connected with cooling air source (16)；
First pipeline (8) and second pipe (12) composition hollow axle, hollow axle are driven by motor (11).
2. a kind of device of utilization blast furnace slag Treatment of Wastewater in Coking according to claim 1, it is characterised in that described device
Also include seal closure (17), first convex disks (4) and the second convex disks (6) are arranged in seal closure (17), close
Just the first convex disks (4) are set at the top of sealing cover (17) and also set up steam outlet (2) at the top of slag inlet (1), seal closure,
Bottom sets slag notch (9).
3. a kind of device of utilization blast furnace slag Treatment of Wastewater in Coking according to claim 2, it is characterised in that the slag input
Mouthful be shaped as circle, the diameter of slag inlet is identical with the diameter of the first convex disks.
4. a kind of device of utilization blast furnace slag Treatment of Wastewater in Coking according to claim 1, it is characterised in that the coking
Waste water runner (7) is connected by the first sealed bearings (13) with coking chemical waste water water source (15)；The cooling air runner (10) is led to
The second sealed bearings (14) are crossed to connect with cooling air source (16).
5. a kind of device of utilization blast furnace slag Treatment of Wastewater in Coking according to claim 1, it is characterised in that the first pipeline
It is nested in inside second pipe, the central axis of the first pipeline and second pipe is identical with the central axis of hollow axle.
6. based on a kind of any one of claim 1-5 methods of the device of utilization blast furnace slag Treatment of Wastewater in Coking, the side
Method comprises the following steps：
1) coking chemical waste water that the first convex disks spray carries out convection current spray with blast furnace slag, and blast furnace slag is cooled into 700~1000
DEG C, the organic compound combustion being granulated in blast furnace slag cooling procedure in the blast furnace slag being tentatively granulated, coking chemical waste water is decomposed, generation
CO2、H2O is discharged；
2) the second convex disks with the first convex disks coaxial rotating spray cooling air, using cooling air to preliminary granulation
Blast furnace slag further cool down, cooling air and blast furnace slag convection heat transfer' heat-transfer by convection and convective drying are further cooled down to blast furnace slag
It is granulated and is dried to obtain little particle blast furnace slag.
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| CN201710236014.7A CN106966446B (en) | 2017-04-12 | 2017-04-12 | Device and method for treating coking wastewater by using blast furnace slag |
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| CN201710236014.7A CN106966446B (en) | 2017-04-12 | 2017-04-12 | Device and method for treating coking wastewater by using blast furnace slag |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108275736A (en) * | 2018-02-08 | 2018-07-13 | 山东钢铁股份有限公司 | The method for handling coking wastewater using high-temperature slag granulation system |
| CN108411053A (en) * | 2018-02-26 | 2018-08-17 | 西安交通大学 | A kind of molten slag granulation apparatus and driving device with elevating function |
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| GB8328393D0 (en) * | 1983-10-24 | 1983-11-23 | British Steel Corp | Granulation of slag |
| CN101993964A (en) * | 2010-11-30 | 2011-03-30 | 武汉都市环保工程技术股份有限公司 | Metallurgical molten slag dry granulating and heat recovering system |
| CN103757157A (en) * | 2013-12-31 | 2014-04-30 | 河南圣石节能环保工程有限公司 | Novel slag dry quenching granulating device |
| CN106381354A (en) * | 2016-12-05 | 2017-02-08 | 中冶赛迪工程技术股份有限公司 | Treatment system and method utilizing biochemically treated tail water of coking wastewater for slag flushing water replenishing |
| CN206799182U (en) * | 2017-04-12 | 2017-12-26 | 山东钢铁股份有限公司 | A kind of device using blast furnace slag Treatment of Wastewater in Coking |
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2017
- 2017-04-12 CN CN201710236014.7A patent/CN106966446B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8328393D0 (en) * | 1983-10-24 | 1983-11-23 | British Steel Corp | Granulation of slag |
| CN101993964A (en) * | 2010-11-30 | 2011-03-30 | 武汉都市环保工程技术股份有限公司 | Metallurgical molten slag dry granulating and heat recovering system |
| CN103757157A (en) * | 2013-12-31 | 2014-04-30 | 河南圣石节能环保工程有限公司 | Novel slag dry quenching granulating device |
| CN106381354A (en) * | 2016-12-05 | 2017-02-08 | 中冶赛迪工程技术股份有限公司 | Treatment system and method utilizing biochemically treated tail water of coking wastewater for slag flushing water replenishing |
| CN206799182U (en) * | 2017-04-12 | 2017-12-26 | 山东钢铁股份有限公司 | A kind of device using blast furnace slag Treatment of Wastewater in Coking |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108275736A (en) * | 2018-02-08 | 2018-07-13 | 山东钢铁股份有限公司 | The method for handling coking wastewater using high-temperature slag granulation system |
| CN108411053A (en) * | 2018-02-26 | 2018-08-17 | 西安交通大学 | A kind of molten slag granulation apparatus and driving device with elevating function |
| CN108411053B (en) * | 2018-02-26 | 2020-03-17 | 西安交通大学 | Liquid slag granulation equipment with lifting function and driving device |
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|---|---|
| CN106966446B (en) | 2022-11-22 |
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