CN212316150U - Production line for air quenching and granulating liquid steel slag - Google Patents
Production line for air quenching and granulating liquid steel slag Download PDFInfo
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- CN212316150U CN212316150U CN202021802289.6U CN202021802289U CN212316150U CN 212316150 U CN212316150 U CN 212316150U CN 202021802289 U CN202021802289 U CN 202021802289U CN 212316150 U CN212316150 U CN 212316150U
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Abstract
A production line for air quenching and granulating liquid steel slag 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 extraction tank and an observation chamber, the spray water pipe arranged in the steel slag processing chamber can cool solidified particles and can also wash smoke dust to a certain extent, particulate matters contained in waste gas are reduced, meanwhile, the smoke gas is further filtered through a purification filter layer arranged at the top of the steel slag processing chamber, the smoke gas enters the exhaust purification tower through the exhaust pipeline under the action of an exhaust fan, the smoke gas is further filtered and purified to prevent environmental pollution, the compressed air source directly acts on a supersonic gas ejector in a granulator through the air pipeline, so that air flow can intensively air-quench the liquid steel slag, thereby better ensuring that the steel slag particles are rapidly granulated and cooled in the air.
Description
Technical Field
The utility model belongs to the technical field of slag treatment, in particular to a production line for liquid steel slag air quenching granulation.
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) smoke dust is generated in the process of granulating the molten steel slag, and the direct emission of the smoke dust at the rear end of the device main body causes certain pollution to the environment through a tail gas outlet pipeline communicated with the forced cooling chamber, so that the environment is not protected; 2) the side portion is provided with two at least spouts towards the helping hand tuyere of forced cooling room on its device main part, can not assist and form more effectual air quench and handle, and the air current that needs higher pressure at the air quench in-process carries out the air quench, and the helping hand tuyere that sets up can influence the flight orbit of liquid slag on the contrary, is unfavorable for the slag and cools off at the flight in-process.
Disclosure of Invention
The utility model aims at overcoming not enough among the prior art, a production line for liquid steel slag air quenching granulation is provided, can cool off solidification granule through the shower pipe that sets up in the slag treatment chamber and can also carry out certain washing to the smoke and dust simultaneously, reduce the particulate matter that contains in the waste gas, the purification filter layer through establishhing at slag treatment chamber top simultaneously further filters the flue gas, make the flue gas enter into the air exhaust purifying column through exhaust duct again under exhaust fan's effect and work as well, further filtration purification, prevent to cause environmental pollution, directly act on supersonic gas ejector in the granulator through making compressed air source through the air conduit, thereby can make the air current concentrate air quenching to liquid steel slag, thereby better assurance steel slag granule is the cooling of granulating fast in the air.
In order to realize the purpose, the utility model discloses a technical scheme is:
a production line for liquid steel slag air quenching and granulation 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 arranged, 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.
Compared with the prior art, the utility model beneficial effect shows:
1) can also carry out certain washing to the smoke and dust when cooling solidification granule through the shower pipe that sets up in the slag treatment chamber, reduce the particulate matter that contains in the waste gas, further filter the flue gas through the purification and filtration layer of establishing at the slag treatment chamber top simultaneously, make the flue gas enter into the purifying column of airing exhaust through exhaust duct again under exhaust fan's effect and work as well, further filtration purification prevents to cause environmental pollution.
2) 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 air-quenched by the air current, the optimal working position is found through the height control mechanism in the granulator to achieve the ideal liquid steel slag granulation effect, the flying cooling distance of the steel slag granules in the air can be more 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 the supersonic gas current is ejected is changed through the angle control mechanism, so that the steel slag granules can be better ensured to be rapidly cooled in the air.
Drawings
FIG. 1 is a schematic layout of a production line for air-quenching and granulating liquid steel slag;
FIG. 2 is a top view of a production line for air-quenching and granulating liquid steel slag;
FIG. 3 is a sectional view of a production line for air-quenching and granulating liquid steel slag;
FIG. 4 is a schematic structural view of a granulator in a production line for wind-quenching and granulating liquid steel slag according to the present invention;
FIG. 5 is a schematic view of the air quenching process in the production line for liquid steel slag air quenching and granulation of the present invention;
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 specifically described with reference to fig. 1 to 5.
A production line for liquid steel slag air quenching and granulating comprises 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 circulation tank 7, a slag recovery mechanism 8, a slag lifting tank 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 circulation tank 7 is arranged on one side of the steel slag processing chamber 4, the slag recovery mechanism 8 is arranged on the other side of the steel slag processing chamber 4, the slag lifting tank 81 is arranged on one side of the slag recovery mechanism 8, the cooling circulation tank 7 is arranged on one side of the slag lifting tank 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 compressed air source 2, the exhaust purification tower 6 is, 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.
A production line for liquid steel slag air quenching and granulating comprises the following working processes:
the electric control chamber supplies power transmission for the whole equipment system, ensures the normal operation of the equipment, transmits compressed air to the granulator through an air pipeline by a compressed air source, pours liquid steel slag into a slag tank, enables the liquid steel slag in the slag tank to flow along a slag groove through a tundish under the action of a transport turning vehicle, enables the granulator to carry out air quenching granulation of high-pressure airflow on the liquid steel slag, firstly sprays exhaust gas micro-dust generated in the process to a spray pipe for washing, then passes through a purification filter layer, finally transmits the exhaust gas to an exhaust purification tower through an exhaust pipeline under the action of an exhaust fan for purification and discharge, enters a slag extracting tank for solid particles generated in a steel slag treatment chamber, then cools and cools the generated solid particles through a cooling circulation tank, the cooling circulation tank carries out graded filtration on impurities contained in cooling water through sedimentation tanks, then carries out circulating utilization on the cooling water, and finally collects the granulated particles through a slag recovery mechanism, and the safety operation of the whole system is monitored in real time through the 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 structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.
Claims (10)
1. A production line for liquid steel slag air quenching and granulation is characterized by comprising 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 purification tower 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.
2. The production line of claim 1, wherein the steel slag granulation mechanism comprises a slag tank, a transport turning cart, a granulator, a tundish and a slag flowing groove, the transport turning cart is arranged on one side of the slag tank, the tundish is arranged on one side of the transport turning cart, 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 production line of claim 2, wherein 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 disposed on one side of the height control mechanism, the angle control mechanism is disposed on one side of the distance control mechanism, and the supersonic gas injector is disposed on one side of the angle control mechanism.
4. The production line for wind quenching and granulating of liquid steel slag as claimed in claim 3, wherein the height control mechanism comprises a screw rod adjusting assembly I and an X-shaped support frame, the X-shaped support frame is arranged on one side of the screw rod adjusting assembly I, the distance control mechanism comprises a screw rod adjusting assembly II and a connecting seat body, the connecting seat body is arranged on one side of the screw rod adjusting assembly II, the angle control mechanism comprises a rack and pinion assembly and a screw rod, and the screw rod is arranged on one side of the rack and pinion assembly.
5. The production line of claim 1, wherein an air compressor is disposed at one side of the compressed air source.
6. The production line of claim 1, wherein the air duct has a regulating valve at one side thereof.
7. The 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.
8. The production line for wind quenching and granulating of liquid steel slag as claimed in claim 1, wherein an exhaust fan is provided at one side of the exhaust purification tower.
9. The production line of claim 1, wherein a water replenishing pump is disposed on one side of the cooling circulation tank.
10. The production line of claim 1, wherein the slag recovery mechanism comprises a hoist and a collecting hopper, and the collecting hopper is arranged on one side of the hoist.
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| CN202021802289.6U CN212316150U (en) | 2020-08-25 | 2020-08-25 | Production line for air quenching and granulating liquid steel slag |
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| CN202021802289.6U CN212316150U (en) | 2020-08-25 | 2020-08-25 | Production line for air quenching and granulating liquid steel slag |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111979366A (en) * | 2020-08-25 | 2020-11-24 | 山东盛阳工程机械有限公司 | Liquid steel slag wind quenching and granulating production line and production process thereof |
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2020
- 2020-08-25 CN CN202021802289.6U patent/CN212316150U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111979366A (en) * | 2020-08-25 | 2020-11-24 | 山东盛阳工程机械有限公司 | Liquid steel slag wind quenching and granulating production line and production process thereof |
| CN111979366B (en) * | 2020-08-25 | 2024-02-13 | 山东盛阳工程机械有限公司 | Liquid steel slag air quenching granulating production line and production process thereof |
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