CN111979366A - Liquid steel slag wind quenching and granulating production line and production process thereof - Google Patents
Liquid steel slag wind quenching and granulating production line and production process thereof Download PDFInfo
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- CN111979366A CN111979366A CN202010861108.5A CN202010861108A CN111979366A CN 111979366 A CN111979366 A CN 111979366A CN 202010861108 A CN202010861108 A CN 202010861108A CN 111979366 A CN111979366 A CN 111979366A
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- 239000002893 slag Substances 0.000 title claims abstract description 243
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 152
- 239000010959 steel Substances 0.000 title claims abstract description 152
- 239000007788 liquid Substances 0.000 title claims abstract description 71
- 238000010791 quenching Methods 0.000 title claims abstract description 42
- 230000000171 quenching effect Effects 0.000 title claims abstract description 37
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 90
- 238000000746 purification Methods 0.000 claims abstract description 46
- 238000001816 cooling Methods 0.000 claims abstract description 44
- 238000005469 granulation Methods 0.000 claims abstract description 35
- 230000003179 granulation Effects 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 17
- 239000000779 smoke Substances 0.000 claims abstract description 15
- 239000000428 dust Substances 0.000 claims abstract description 12
- 239000011361 granulated particle Substances 0.000 claims abstract description 12
- 238000011084 recovery Methods 0.000 claims abstract description 12
- 239000007921 spray Substances 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 20
- 230000007306 turnover Effects 0.000 claims description 20
- 239000002245 particle Substances 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 18
- 239000002912 waste gas Substances 0.000 claims description 13
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 239000010808 liquid waste Substances 0.000 claims description 7
- 101000623895 Bos taurus Mucin-15 Proteins 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000605 extraction Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000005406 washing Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 description 12
- 239000000498 cooling water Substances 0.000 description 6
- 238000004064 recycling Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 5
- 239000008187 granular material Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 239000000243 solution Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/02—Physical or chemical treatment of slags
- C21B2400/022—Methods of cooling or quenching molten slag
- C21B2400/026—Methods of cooling or quenching molten slag using air, inert gases or removable conductive bodies
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/04—Specific shape of slag after cooling
- C21B2400/044—Briquettes or moulded bodies other than sheets
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/05—Apparatus features
- C21B2400/062—Jet nozzles or pressurised fluids for cooling, fragmenting or atomising slag
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
A liquid steel slag wind quenching granulation production line and a production process thereof are provided, the liquid steel slag wind quenching granulation production line comprises an electric control chamber, a compressed air source, an air pipeline, a steel slag granulation mechanism, a steel slag treatment chamber, an exhaust purification tower, an exhaust pipeline, a cooling circulation tank, a slag recovery mechanism, a slag extraction tank and an observation chamber, and the liquid steel slag wind quenching granulation production process comprises gas introduction, steel slag pouring, granulator adjustment, wind quenching granulation, smoke treatment and granulated particle cooling collection; the invention leads the compressed air source to directly act on the supersonic gas ejector in the granulator through the air pipeline, thereby leading the air current to carry out centralized air quenching on the liquid steel slag, optimizing the processing technology, finding the optimal working position to realize the more ideal granulation effect of the liquid steel slag by adding the adjustment of the granulator before the air quenching granulation, leading the spray water pipe to carry out certain washing on the smoke dust, leading the smoke gas to enter the exhaust purification tower for further filtering and purification.
Description
Technical Field
The invention belongs to the technical field of steel slag treatment, and particularly relates to a liquid steel slag wind quenching and granulating production line and a production process thereof.
Background
The steel slag is waste slag generated in a steel making process, the steel slag is formed at 1500-1700 ℃, is liquid at high temperature, is cooled and can be quenched into granules, and is searched for patent No. CN110747302A, a steel slag air quenching device and a steel slag granulating method, the steel slag air quenching device comprises a device main body with a forced cooling chamber, the front section of the device main body is provided with a liquid slag chute and a main air pipeline, an air injection port of the main air pipeline is positioned at the lower side of the chute end of the liquid slag chute and faces the forced cooling chamber, a cooling inlet is arranged in the forced cooling chamber, the rear end of the device main body is provided with a tail gas air outlet pipeline, the upper side part of the device main body is provided with at least two power-assisted air nozzles facing the forced cooling chamber, the lower side part of the device main body is provided with a granulated material collector, the lower end of the granulated material collector is provided with a;
but has the following disadvantages: 1) the upper side part of the device main body is provided with at least two power-assisted air nozzles with nozzles facing the forced cooling chamber, so that more effective air quenching treatment cannot be formed in an auxiliary manner, air quenching is carried out by high-pressure air flow in the air quenching process, and the arranged power-assisted air nozzles can influence the flight trajectory of liquid steel slag and are not beneficial to cooling the steel slag in the flight process; 2) when the steel slag granulation method is used for construction and production, the air injection opening of the main air pipeline is a fixed air outlet, so that the adjustment cannot be effectively carried out according to the state of molten slag, and the quality of some granulated finished products is poor.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a liquid steel slag air quenching granulation production line and a production process thereof, wherein a compressed air source directly acts on a supersonic gas ejector in a granulator through an air pipeline, so that air flow can intensively air-quench liquid steel slag, the trajectory of a flying parabolic line of the liquid steel slag after being ejected by the supersonic gas flow is changed, the steel slag particles are better ensured to be rapidly granulated and cooled in the air, the processing process is optimized, the regulation of the granulator is added before air quenching granulation to be regulated according to the state of molten slag, the movement trajectory of the steel slag is preset, the optimal working position is further found to realize the ideal granulation effect of the liquid steel slag, certain washing is carried out on smoke dust through a spray water pipe in a steel slag treatment chamber, the particulate matters contained in waste gas are reduced, and meanwhile, the smoke gas is further filtered through a purification filter layer arranged at the top of the steel slag treatment chamber, under the action of the exhaust fan, the flue gas enters the exhaust purification tower through the exhaust pipeline, and is further filtered and purified, so that the environmental pollution is prevented.
In order to achieve the purpose, the invention adopts the technical scheme that:
a liquid steel slag air quenching and granulating production line comprises an electric control chamber, a compressed air source, an air pipeline, a steel slag granulating mechanism, a steel slag processing chamber, an exhaust purification tower, an exhaust pipeline, a cooling circulation tank, a slag recovery mechanism, a slag lifting tank and an observation chamber, wherein the steel slag granulating mechanism is arranged on one side of the steel slag processing chamber, the cooling circulation tank is arranged on one side of the steel slag processing chamber, the slag recovery mechanism is arranged on the other side of the steel slag processing chamber, the slag lifting tank is arranged on one side of the slag recovery mechanism, the cooling circulation tank is arranged on one side of the slag lifting tank, the air pipeline is arranged on one side of the steel slag granulating mechanism, the compressed air source is arranged on the other side of the air pipeline, the exhaust purification tower is arranged on one side of the compressed air source, the exhaust pipeline is arranged on one side of the exhaust purification tower, the observation chamber is, the exhaust purification tower is connected with the steel slag treatment chamber through an exhaust pipeline;
the electric control chamber provides power transmission for the whole equipment system, normal operation of the equipment is ensured, compressed air is transmitted to the steel slag granulating mechanism through an air pipeline through a compressed air source, liquid steel slag is granulated through high-pressure airflow matching with the steel slag granulating mechanism, the liquid steel slag is processed into solid particles in the steel slag processing chamber, waste gas and dust generated in the process are transmitted to an exhaust purification tower through an exhaust pipeline for purification and discharge, the solid particles generated in the steel slag processing chamber enter a slag extracting tank, the cooling circulation tank cools and cools the generated solid particles, the cooling circulation tank recycles cooling water after impurity contained in the cooling water is graded and filtered through various sedimentation tanks, finally the granulated particles are collected through a slag recovery mechanism, and the safety operation of the whole system is monitored in real time through an observation chamber.
Preferably, the steel slag granulating mechanism comprises a slag tank, a conveying turnover vehicle, a granulator, a tundish and a slag flowing groove, wherein the conveying turnover vehicle is arranged on one side of the slag tank, the tundish is arranged on one side of the conveying turnover vehicle, the slag flowing groove is arranged on one side of the tundish, the granulator is arranged on one side of the slag flowing groove, an air pipeline is communicated with the granulator, liquid steel slag is poured into the slag tank, the liquid steel slag in the slag tank flows down along the slag flowing groove through the tundish under the action of the conveying turnover vehicle, and the granulator carries out high-pressure air current wind quenching on the liquid steel slag to form solid particles in the steel slag processing chamber.
Preferably, the granulator comprises a height control mechanism, a distance control mechanism, an angle control mechanism and a supersonic gas injector, wherein the distance control mechanism is arranged on one side of the height control mechanism, the angle control mechanism is arranged on one side of the distance control mechanism, the supersonic gas injector is arranged on one side of the angle control mechanism, the optimal working position is found through the height control mechanism to achieve the ideal liquid steel slag granulation effect, the flying cooling distance of the steel slag granulation in the air can be effectively achieved by adjusting the distance between the liquid steel slag and the flowing liquid steel slag through the distance control mechanism, and the trajectory of the flying parabolic line of the liquid steel slag after being sprayed through the supersonic gas flow is changed through the angle control mechanism, so that the multidimensional adjustment can be performed according to different slag states.
Preferably, height control mechanism includes lead screw adjusting part I, X type support frame, I one side of lead screw adjusting part is equipped with X type support frame, and the regulation to the height is then realized through the flexible of I control X type support frame of lead screw adjusting part, distance control mechanism includes lead screw adjusting part II, connects the pedestal, II one side of lead screw adjusting part are equipped with the connection pedestal, through the displacement of II control connection pedestals of lead screw adjusting part, and then realize the regulation of lateral shifting distance, angle control mechanism includes rack and pinion subassembly, screw rod, rack and pinion subassembly one side is equipped with the screw rod, through screw rod pulling rack, makes the rack drive gear rotatory, and then realizes supersonic gas injector's angle modulation.
Preferably, one side of the compressed air source is provided with an air compressor which is a high-pressure air compressor, so that the pressure of the compressed air source is not lower than 0.6 MPa.
Preferably, one side of the air pipeline is provided with an adjusting valve, and the adjusting valve is used for controlling the ventilation quantity entering the granulator through the air pipeline, so that the granulator can perform a good granulation working process on the liquid steel slag.
Preferably, the slag treatment chamber includes purification and filtration layer, shower pipe, the inside purification and filtration layer that is equipped with of slag treatment chamber, purification and filtration layer one side is equipped with a plurality of shower pipes, cools off solidification granule through the shower pipe, can wash produced waste gas simultaneously, carries out filtration purification to waste gas through the purification and filtration layer again.
Preferably, one side of the exhaust purification tower is provided with an exhaust fan, and the exhaust fan is used for accelerating the exhaust speed of the waste gas and the dust in the steel slag treatment room.
Preferably, a water replenishing pump is arranged on one side of the cooling circulation pool, and the water amount consumed in the cooling circulation pool can be replenished by opening the water replenishing pump.
Preferably, the slag charge recycling mechanism comprises a lifting machine and a collecting hopper, wherein the collecting hopper is arranged on one side of the lifting machine, and cooled solid particles in the lifting pool are conveyed to the collecting hopper through the lifting machine.
Further, a liquid steel slag wind quenching granulation production process:
step 5, smoke treatment: starting an exhaust fan to enable waste gas in the steel slag treatment chamber to enter an exhaust purification tower along an exhaust pipeline to filter and purify smoke dust;
Compared with the prior art, the invention has the beneficial effects that:
1) the compressed air source directly acts on the supersonic gas ejector in the granulator through the air pipeline, so that the liquid steel slag can be intensively quenched by air flow, and the steel slag particles can be rapidly granulated and cooled in the air.
2) The processing technology is optimized, the granulator is adjusted according to the state of molten slag by adding adjustment before air quenching and granulation, so that the movement track of the steel slag is preset, the optimal working position is found through a high-degree control mechanism in the granulator to achieve the ideal liquid steel slag granulation effect, the flying cooling distance of the steel slag in the air for steel slag granulation can be effectively achieved by adjusting the distance between the liquid steel slag and the flowing liquid steel slag through a distance control mechanism, and the track of the flying parabolic line of the liquid steel slag after supersonic air jet is changed through an angle control mechanism to further find the optimal working position to achieve the ideal liquid steel slag granulation effect.
3) A certain amount of smoke dust can be generated in the process of granulating the steel slag, the smoke dust is washed in a steel slag treatment chamber to a certain extent through a spray header by an optimized processing method, particles contained in waste gas are reduced, meanwhile, the smoke gas is further filtered by arranging a purification filter layer at the top of the steel slag treatment chamber, and the smoke gas enters an exhaust purification tower through an exhaust pipeline under the action of an exhaust fan for further filtration and purification, so that the environmental pollution is prevented.
Drawings
FIG. 1 is a schematic layout of a liquid steel slag air-quenching granulation production line in the liquid steel slag air-quenching granulation production line and the production process thereof of the invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 1;
FIG. 4 is a schematic view of the granulator of FIG. 3;
FIG. 5 is a schematic view of a liquid steel slag air-quenching granulation process in the production line and the production process thereof;
in the figure: 1. an electric control chamber; 2. compressing a gas source; 21. an air compressor; 22. an air duct; 23. adjusting a valve; 3. a steel slag granulating mechanism; 31. a slag pot; 32. conveying the turnover vehicle; 33. a granulator; 331. a height control mechanism; 3311. a screw rod adjusting assembly I; 3312. an X-shaped support frame; 332. a distance control mechanism; 3321. a screw rod adjusting assembly II; 3322. connecting the base body; 333. an angle control mechanism; 3331. a rack and pinion assembly; 3332. a screw; 334. a supersonic gas injector; 34. a tundish; 341. a slag flowing groove; 4. a steel slag treatment chamber; 41. a purification and filtration layer; 42. a spray header; 6. an exhaust purification tower; 61. an exhaust fan; 62. an exhaust duct; 7. cooling the circulating pool; 71. a water replenishing pump; 8. a slag recovery mechanism; 81. a slag extracting pool; 82. a hoist; 83. a collecting hopper; 9. and (4) observing the chamber.
Detailed Description
For the convenience of understanding of those skilled in the art, the technical solution of the present invention will be further described in detail with reference to fig. 1 to 5.
A liquid steel slag air quenching and granulating production line and a production process thereof comprise an electric control chamber 1, a compressed air source 2, an air pipeline 22, a steel slag granulating mechanism 3, a steel slag processing chamber 4, an exhaust purification tower 6, an exhaust pipeline 62, a cooling circulating pool 7, a slag recycling mechanism 8, a slag lifting pool 81 and an observation chamber 9, wherein the steel slag granulating mechanism 3 is arranged on one side of the steel slag processing chamber 4, the cooling circulating pool 7 is arranged on one side of the steel slag processing chamber 4, the slag recycling mechanism 8 is arranged on the other side of the steel slag processing chamber 4, the slag lifting pool 81 is arranged on one side of the slag recycling mechanism 8, the cooling circulating pool 7 is arranged on one side of the slag lifting pool 81, the air pipeline 22 is arranged on one side of the steel slag granulating mechanism 3, the compressed air source 2 is arranged on the other side of the air pipeline 22, the purification tower 6 is arranged on one side of the exhaust purification tower 6, the observation chamber, one side of the observation chamber 9 is provided with an electric control chamber 1, a compressed air source 2 is connected with the steel slag granulating mechanism 3 through an air pipeline 22, and an exhaust purification tower 6 is connected with the steel slag treatment chamber 4 through an exhaust pipeline 62;
the electric control chamber 1 provides electric power transmission for the whole equipment system to ensure the normal operation of the equipment, compressed air is transmitted to the steel slag granulating mechanism 3 through the air pipeline 22 by the compressed air source 2, liquid steel slag is granulated by the high-pressure air flow matched with the steel slag granulating mechanism 3, liquid steel slag is processed into solid particles in the steel slag processing chamber 4, the exhaust gas fine dust generated in the process is transmitted to the exhaust purification tower 6 through the exhaust pipeline 62 for purification and discharge, solid particles generated in the steel slag treatment chamber 4 enter a slag extraction tank 81, the generated solid particles are cooled by a cooling circulation tank 7, impurities contained in cooling water are filtered by stages in the cooling circulation tank 7 through sedimentation tanks at all stages, the cooling water is recycled, finally, granulated particles are collected by a slag material recovery mechanism 8, and the safety operation of the whole system is monitored in real time through an observation chamber 9.
The steel slag granulating mechanism 3 comprises a slag tank 31, a conveying turnover vehicle 32, a granulator 33, a tundish 34 and a slag flowing groove 341, wherein the conveying turnover vehicle 32 is arranged on one side of the slag tank 31, the tundish 34 is arranged on one side of the conveying turnover vehicle 32, the slag flowing groove 341 is arranged on one side of the tundish 34, the granulator 33 is arranged on one side of the slag flowing groove 341, the air pipeline 22 is communicated with the granulator 33, liquid steel slag is poured into the slag tank, and under the action of the conveying turnover vehicle 32, the liquid steel slag in the slag tank 31 flows down along the slag flowing groove 341 through the tundish 34, so that the granulator 33 carries out high-pressure air current wind quenching on the liquid steel slag, and solid particles are formed in the steel slag processing chamber 4.
The granulator 33 comprises a height control mechanism 331, a distance control mechanism 332, an angle control mechanism 333 and a supersonic gas injector 334, wherein the distance control mechanism 332 is arranged on one side of the height control mechanism 331, the angle control mechanism 333 is arranged on one side of the distance control mechanism 332, the supersonic gas injector 334 is arranged on one side of the angle control mechanism 333, an optimal working position is found through the height control mechanism 331 to achieve a more ideal liquid steel slag granulation effect, the distance between the liquid steel slag and the flowing liquid steel slag can be adjusted through the distance control mechanism 332 to more effectively achieve the flight cooling distance of the steel slag granulation in the air, and the trajectory of the flying parabolic line of the liquid steel slag after being sprayed by the supersonic gas flow is changed through the angle control mechanism 333, so that the multidimensional adjustment can be performed according to different slag states.
And an air compressor 21 is arranged on one side of the compressed air source 2, and the air compressor 21 is a high-pressure air compressor, so that the pressure of the compressed air source is not lower than 0.6 MPA.
An adjusting valve 23 is arranged on one side of the air pipeline 22, and the air flow entering the granulator 33 through the air pipeline is controlled by the adjusting valve 23, so that the granulator 33 can perform a good granulation working process on the liquid steel slag.
The steel slag treatment chamber 4 comprises a purification and filtration layer 41 and spray water pipes 42, the purification and filtration layer 41 is arranged inside the steel slag treatment chamber 4, a plurality of spray water pipes 42 are arranged on one side of the purification and filtration layer 41, solidified particles are cooled through the spray water pipes 42, generated waste gas can be washed simultaneously, and then the waste gas is filtered and purified through the purification and filtration layer 41.
An exhaust fan 61 is arranged on one side of the exhaust purification tower 6, and the exhaust fan 61 is used for accelerating the exhaust speed of the waste gas and the dust in the steel slag treatment chamber 4.
And a water replenishing pump 71 is arranged on one side of the cooling circulation pool 7, and the water consumed in the cooling circulation pool 7 can be replenished by opening the water replenishing pump 71.
The slag charge recycling mechanism 8 comprises a lifting machine 82 and a collecting hopper 83, wherein the collecting hopper 83 is arranged on one side of the lifting machine 82, and cooled solid particles in a slag lifting pool 81 are conveyed to the collecting hopper 83 through the lifting machine 82.
Further, a liquid steel slag wind quenching granulation production process:
step 5, smoke treatment: starting an exhaust fan to enable waste gas in the steel slag treatment chamber to enter an exhaust purification tower along an exhaust pipeline to filter and purify smoke dust;
A liquid steel slag wind quenching granulation production line and a production process thereof have the following working processes:
the electric control chamber provides electric power transmission for the whole equipment system, the normal operation of the equipment is ensured, compressed air is transmitted into a supersonic gas ejector in a granulator through an air pipeline by a compressed air source, a slag tank is hoisted to a transport turnover vehicle by a crane, the transport turnover vehicle runs to a tundish working position according to a track to perform tipping and deslagging work, the temperature of liquid steel slag is controlled at 1500 ℃, the deslagging speed is controlled at 1.1t/min, the granulator performs air quenching granulation on the liquid steel slag by high-pressure airflow after completing regulation, the supersonic gas ejector is opened, the air pressure is controlled at 0.8MPa, the liquid waste slag is rapidly cooled and granulated in the process of flying to the other side of the steel slag treatment chamber, the liquid waste slag falls into a slag extraction tank and is subjected to residual temperature cooling of granulated particles by a spray water pipe, and the waste gas and fine dust generated in the process are firstly washed by the spray water pipe and then pass through a purification and filtration layer, and finally, conveying the solid particles generated in the steel slag treatment chamber into a slag extracting tank through an exhaust pipeline under the action of an exhaust fan for purification and discharge, cooling the generated solid particles to below 150 ℃ through a cooling circulation tank, filtering impurities contained in cooling water in a grading manner through sedimentation tanks of all levels in the cooling circulation tank, recycling the cooling water, finally collecting granulated particles through a slag recovery mechanism, and monitoring the safe operation of the whole system in real time through an observation chamber.
In the supersonic gas injector mentioned above, the screw rod adjusting assembly i and the screw rod assembly ii each include a ball screw and a screw nut, and the rack-and-pinion assembly includes a gear and a rack, and is a component that can be produced by the prior art and can be obtained from the market or the factory.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.
Claims (10)
1. A liquid steel slag air quenching and granulating production line comprises an electric control chamber, a compressed air source, an air pipeline, a steel slag granulating mechanism, a steel slag processing chamber, an exhaust purification tower, an exhaust pipeline, a cooling circulation tank, a slag recovery mechanism, a slag lifting tank and an observation chamber, and is characterized in that the steel slag granulating mechanism is arranged on one side of the steel slag processing chamber, the cooling circulation tank is arranged on one side of the steel slag processing chamber, the slag recovery mechanism is arranged on the other side of the steel slag processing chamber, the slag lifting tank is arranged on one side of the slag recovery mechanism, the cooling circulation tank is arranged on one side of the slag lifting tank, the air pipeline is arranged on one side of the steel slag granulating mechanism, the compressed air source is arranged on the other side of the air pipeline, the exhaust purification tower is arranged on one side of the compressed air source, the exhaust pipeline is arranged on one side of the exhaust purification tower, the observation chamber, the exhaust purification tower is connected with the steel slag treatment chamber through an exhaust pipeline.
2. The liquid steel slag wind quenching and granulating production line of claim 1, wherein the steel slag granulating mechanism comprises a slag tank, a transport reversing vehicle, a granulator, a tundish and a slag flowing groove, the transport reversing vehicle is arranged on one side of the slag tank, the tundish is arranged on one side of the transport reversing vehicle, the slag flowing groove is arranged on one side of the tundish, the granulator is arranged on one side of the slag flowing groove, and the air pipeline is communicated with the granulator.
3. The liquid steel slag wind quenching and granulating production line of claim 1, wherein the granulator comprises a height control mechanism, a distance control mechanism, an angle control mechanism and a supersonic gas injector, the distance control mechanism is arranged on one side of the height control mechanism, the angle control mechanism is arranged on one side of the distance control mechanism, the supersonic gas injector is arranged on one side of the angle control mechanism, the height control mechanism comprises a screw rod adjusting component I and an X-shaped support frame, the X-shaped support frame is arranged on one side of the screw rod adjusting component I, the distance control mechanism comprises a screw rod adjusting component II and a connecting base body, the connecting base body is arranged on one side of the screw rod adjusting component II, the angle control mechanism comprises a rack and pinion component and a screw rod, and the screw rod is arranged on one side of the.
4. The liquid steel slag wind quenching and granulating production line of claim 1, wherein an air compressor is arranged on one side of the compressed air source.
5. The liquid steel slag wind-quenching and granulating production line of claim 1, wherein an adjusting valve is arranged at one side of the air pipeline.
6. The liquid steel slag air quenching and granulating production line of claim 1, wherein the steel slag treatment chamber comprises a purification and filtration layer and shower water pipes, the purification and filtration layer is arranged in the steel slag treatment chamber, and a plurality of shower water pipes are arranged on one side of the purification and filtration layer.
7. The liquid steel slag wind quenching and granulating production line of claim 1, wherein an exhaust fan is arranged at one side of the exhaust purification tower.
8. The liquid steel slag wind quenching and granulating production line of claim 1, wherein a water replenishing pump is arranged at one side of the cooling circulation tank.
9. The liquid steel slag wind quenching and granulating production line of claim 1, wherein the slag recovery mechanism comprises a lifter and a collecting hopper, and the collecting hopper is arranged on one side of the lifter.
10. A liquid steel slag wind quenching granulation production process is characterized by comprising the following steps:
step 1, gas introduction: opening the regulating valve to enable the high-pressure airflow in the compressed air source to be led into the supersonic speed gas ejector in the granulator;
step 2, pouring steel slag: hoisting the slag tank to a conveying turnover vehicle through a crane, and enabling the conveying turnover vehicle to move to a tundish working position according to a track to perform turnover and slag pouring work, wherein the temperature range of the liquid steel slag is controlled to be 1400-1550 ℃, and the slag pouring speed is controlled to be 1-1.5 t/min;
step 3, regulation of a granulator: the granulator is adjusted according to different batches of liquid steel slag, and an optimal granulation motion track is obtained in the working process of steel slag granulation through the height control mechanism, the distance control mechanism and the angle control mechanism;
step 4, air quenching and granulating: liquid steel slag flows out through a slag flowing groove, a supersonic gas ejector is opened, the air pressure is controlled to be 0.7-1.0 MPa, liquid waste slag is rapidly cooled and granulated in the process of flying to the other side of a steel slag treatment chamber, and after the liquid waste slag falls into a slag extracting pool, the granulated slag is cooled at the residual temperature through a spray water pipe;
step 5, smoke treatment: starting an exhaust fan to enable waste gas in the steel slag treatment chamber to enter an exhaust purification tower along an exhaust pipeline to filter and purify smoke dust;
step 6, cooling and collecting the granulated particles: cooling the granulated particles in a cooling circulation pool to make the temperature lower than 150 ℃, and conveying the particles into a collection hopper by a lifter.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113789417A (en) * | 2021-09-28 | 2021-12-14 | 北京中航天业科技有限公司 | Atomization treatment device and treatment method for liquid steel slag |
| CN115231316A (en) * | 2022-09-22 | 2022-10-25 | 山东大学 | Fluidized powder supply system and method based on waste gas and waste residue chilling steel slag |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101259991A (en) * | 2008-05-09 | 2008-09-10 | 马鞍山钢铁股份有限公司 | Wind-crushing water-cooling granulating method and device for high-temperature liquid-state steel slag, granulating steel slag and use thereof |
| CN201400690Y (en) * | 2009-04-09 | 2010-02-10 | 河北理工大学 | Supersonic gas nozzle for granulating liquid molten slags |
| CN102312024A (en) * | 2011-07-28 | 2012-01-11 | 郭荣芝 | Method and system for mechanical granulation of metallurgy slag and waste heat recovery |
| CN204608052U (en) * | 2015-05-19 | 2015-09-02 | 重庆赛迪热工环保工程技术有限公司 | A kind of tundish of slag adaptive-flow |
| CN212316150U (en) * | 2020-08-25 | 2021-01-08 | 山东盛阳工程机械有限公司 | Production line for air quenching and granulating liquid steel slag |
-
2020
- 2020-08-25 CN CN202010861108.5A patent/CN111979366B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101259991A (en) * | 2008-05-09 | 2008-09-10 | 马鞍山钢铁股份有限公司 | Wind-crushing water-cooling granulating method and device for high-temperature liquid-state steel slag, granulating steel slag and use thereof |
| CN201400690Y (en) * | 2009-04-09 | 2010-02-10 | 河北理工大学 | Supersonic gas nozzle for granulating liquid molten slags |
| CN102312024A (en) * | 2011-07-28 | 2012-01-11 | 郭荣芝 | Method and system for mechanical granulation of metallurgy slag and waste heat recovery |
| CN204608052U (en) * | 2015-05-19 | 2015-09-02 | 重庆赛迪热工环保工程技术有限公司 | A kind of tundish of slag adaptive-flow |
| CN212316150U (en) * | 2020-08-25 | 2021-01-08 | 山东盛阳工程机械有限公司 | Production line for air quenching and granulating liquid steel slag |
Non-Patent Citations (1)
| Title |
|---|
| 马守谦等: "《汽车底盘构造与维修》", vol. 1, 机械工业出版社, pages: 188 - 189 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113789417A (en) * | 2021-09-28 | 2021-12-14 | 北京中航天业科技有限公司 | Atomization treatment device and treatment method for liquid steel slag |
| CN115231316A (en) * | 2022-09-22 | 2022-10-25 | 山东大学 | Fluidized powder supply system and method based on waste gas and waste residue chilling steel slag |
| CN115231316B (en) * | 2022-09-22 | 2022-12-20 | 山东大学 | Fluidized powder supply system and method based on waste gas and waste residue chilling steel slag |
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