CN214765803U - High-temperature steel slag rolling crushing air-cooling waste heat recovery device - Google Patents
High-temperature steel slag rolling crushing air-cooling waste heat recovery device Download PDFInfo
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- CN214765803U CN214765803U CN202120901023.5U CN202120901023U CN214765803U CN 214765803 U CN214765803 U CN 214765803U CN 202120901023 U CN202120901023 U CN 202120901023U CN 214765803 U CN214765803 U CN 214765803U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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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Abstract
The utility model discloses a broken forced air cooling waste heat recovery device of high temperature slag roll-in, include: the system comprises a low-temperature steel slag feeding device, a high-temperature steel slag tipping device, a rolling crusher, a chain plate conveyor, a cooling feeding device, a single-cylinder cooler, a blower, a chain plate conveyor, a draught fan, a cyclone dust collector, a waste heat boiler and a dust removal device; the low-temperature steel slag feeding device is arranged above one side of the rolling crusher, and the high-temperature steel slag tipping device is positioned below the low-temperature steel slag feeding device; one end of the chain plate type conveyor is connected with the lower side of the rolling crusher, the other end of the chain plate type conveyor is connected with the cooling feeding device, and the steel slag is conveyed to the cooling feeding device through the chain plate type conveyor; the cooling feeding device is arranged above one side of the single-cylinder cooler and is connected with a feeding hole of the single-cylinder cooler; the utility model discloses realize the effective utilization of slag waste heat, reduce fume emission to satisfy the requirement of environmental protection, have important meaning to reducing the comprehensive energy consumption of iron and steel enterprise.
Description
Technical Field
The utility model relates to a steel production processing technology field specifically is a broken forced air cooling waste heat recovery device of high temperature slag roll-in.
Background
In recent years, the steel yield per year in China exceeds 8 hundred million tons, about 150-200 kg of steel slag is generated per ton of steel, and the annual production amount of the steel slag in China exceeds 1 million tons. The steel slag contains two types of resources, namely iron metal resources and inorganic materials such as calcium silicate, and has the material property of resource utilization. For a long time, iron ores in China mainly depend on imports, and resources are very short. The steel slag in China is expected to recover nearly 2000 ten thousand tons of iron resources, and inorganic materials can reach more than 8000 ten thousand tons, so that the method has great significance in resource recovery value.
The high-efficiency recovery of metal iron and inorganic material resources in the steel slag is to perform crushing separation firstly and then realize the separation of the two materials by adopting magnetic separation and other modes, thereby obtaining targeted resource utilization. The steel slag pretreatment process is a precondition for steel slag crushing and magnetic separation treatment, and realizes more efficient crushing, screening and magnetic separation of the steel slag through pretreatment under a high temperature condition. The prior steel slag pretreatment process comprises production processes such as a hot stuffy method, a hot splashing method, a roller method, a wind quenching method and the like, wherein the hot splashing method has the problems of backward production mode, simple and extensive treatment process, serious environmental pollution, low metal resource recovery rate and the like, and is required to be eliminated as soon as possible; the roller method is only suitable for liquid steel slag with good fluidity, the treatment rate of the steel slag is less than 50%, the equipment operation cost is high, the failure is high, and the roller method is only used for a few steel enterprises in a steel system at present; the air quenching method adopts large air volume to blow off and cool the liquid steel slag into fine particles, is only suitable for treating the liquid steel slag, has low recovery rate of steel metal iron resources, and only one set of air quenching equipment is provided for domestic horse steel.
The domestic main steel slag treatment method is a hot-disintegration method and is divided into a tank type hot-disintegration process and a pressure hot-disintegration process. The tank type hot stuffy method adopts a process method of engineering mechanized operation, namely an excavator is used for slagging off and crushing the high-temperature steel slag poured into the hot stuffy tank, and the equipment level and the environmental emission need to be further improved. The high-temperature steel slag is crushed by a mechanical rolling crusher in a pressing and hot-stuffy mode, the investment is relatively high, the airtightness is poor, and waste heat recovery cannot be performed in a water cooling mode in the crushing process. The slag temperature of the steel slag reaches 1400-1600 ℃, and the heat value of each ton of slag exceeds 40kg of standard coal, wherein a large amount of waste heat resources are contained. The annual output of steel slag in China exceeds 1 hundred million tons, if all the waste heat resources are recycled, the newly increased economic benefit can reach billions of yuan every year, and the method has huge economic market space. A large number of laboratory and industrial pilot-scale test researches are carried out at home and abroad aiming at the recovery of the waste heat of the air-quenched steel slag, but the method is improper, the recovery rate of iron resources is low, the production is discontinuous, and the comprehensive economic benefit is poor, so that the production and the application cannot be realized. In addition, smelting slag is adopted to cool to generate steam or hot water for heat exchange utilization, but the waste heat utilization rate is low, and the economic condition of industrial operation is not met. Aiming at the problems of large occupied space, high system investment, incapability of recycling waste heat and the like of the existing steel slag treatment process and equipment, a novel steel slag treatment process is urgently needed to be developed.
SUMMERY OF THE UTILITY MODEL
The technical insufficiency exists, the utility model aims to provide a high temperature steel slag roll-in crushing forced air cooling waste heat recovery device to solve the problem that provides in the background art.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model provides a broken forced air cooling waste heat recovery device of high temperature slag roll-in, include: the system comprises a low-temperature steel slag feeding device, a high-temperature steel slag tipping device, a rolling crusher, a chain plate conveyor, a cooling feeding device, a single-cylinder cooler, a blower, a chain plate conveyor, a draught fan, a cyclone dust collector, a waste heat boiler and a dust removal device; the low-temperature steel slag feeding device is arranged above one side of the rolling crusher, and the high-temperature steel slag tipping device is positioned below the low-temperature steel slag feeding device; one end of the chain plate type conveyor is connected with the lower side of the rolling crusher, the other end of the chain plate type conveyor is connected with the cooling feeding device, and the steel slag is conveyed to the cooling feeding device through the chain plate type conveyor; the cooling feeding device is arranged above one side of the single-cylinder cooler and is connected with a feeding hole of the single-cylinder cooler; the blower is positioned above one side of the single-cylinder cooler and is communicated with the single-cylinder cooler; a chain plate conveying device is arranged below the discharge port of the single-cylinder cooler; the induced draft fan is arranged below one side of the rolling crusher, and the other side of the induced draft fan is sequentially provided with a cyclone dust collector, a waste heat boiler and a dust removal device; one end of the induced draft fan is connected with the rolling crusher, and the other end of the induced draft fan is connected with the cyclone dust collector; the connection end of the induced draft fan of the cyclone dust collector is connected with the single-cylinder cooler, and the other end of the cyclone dust collector is connected with the waste heat boiler; the other end of the waste heat boiler is connected with a dust removal device.
Preferably, the rolling crusher is a drum type, and comprises a feeding opening device, a large material stacking position, a drum riding wheel catch wheel device, a crushing roller supporting device, a drum driving device, a crushing roller driving device, a crusher rear cover, a drum rear end semi-annular striker plate, a flexible sealing structure, a drum, a crushing roller, a drum front end annular striker plate, a crusher front cover, a high-temperature draught fan interface and a feeding opening;
the feeding port is positioned below one side of the low-temperature steel slag feeding device; a feeding opening device is arranged above one side of the feeding opening and fixed on the roller; the large material stacking position is positioned below one side of the feeding port; a roller riding wheel blocking wheel device is arranged below the roller; the roller driving device is arranged on one side of the roller and used for driving and controlling the roller to rotate and stop in the forward and reverse directions; the semi-annular striker plate at the rear end of the roller is fixed at one end of the roller; the front end annular striker plate of the roller is fixed at one end of the roller, which is far away from the rear end semi-annular striker plate of the roller; the crusher rear cover is arranged at one end of the roller, the crusher rear cover and the roller are sealed through a flexible sealing structure, and the crusher rear cover is connected with the chain plate type conveyor; the crusher front cover is arranged at one end of the roller, which is far away from the crusher rear cover, the crusher front cover and the roller are sealed by a flexible sealing structure, a high-temperature induced draft fan connector is arranged above one side of the crusher front cover, and the crusher front cover is connected with an induced draft fan; the crushing roller supporting devices are respectively arranged on one side of two ends of the crusher rear cover and one side of two ends of the crusher front cover, and the crushing roller supporting devices are used for fixing the crushing rollers in the axial direction and the radial direction; the crushing roller driving device is fixed on the crushing roller supporting device at the front end of the rolling crusher and used for driving and controlling the forward and reverse directions of the crushing roller to rotate and stop.
Preferably, the periphery of the slat conveyor and the slat conveying device is provided with a closed insulating cover.
Preferably, the cooling and feeding device comprises a collecting hopper and a screw conveyor.
Preferably, the crushing roller is spirally provided with crushing teeth, and the axial end surfaces of the crushing teeth are spiral curved surfaces.
Preferably, the roller comprises a welded roller body, a high-temperature-resistant heat-insulation coating, a high-temperature-resistant heat-insulation inorganic material and a high-temperature-resistant wear-resistant alloy lining plate; the cylinder is formed by alloy steel material welding, and the inboard surface spraying of barrel can be able to bear or endure 1000 ℃ high temperature thermal-insulated heat preservation coating, and high temperature resistant thermal-insulated heat preservation coating thickness is 5mm, lays the high temperature resistant thermal-insulated inorganic material that the thickness is 20mm on the high temperature resistant thermal-insulated heat preservation coating, the innermost layer of cylinder is located to high temperature wear-resisting alloy welt to pass through high strength bolted connection with the barrel.
The beneficial effects of the utility model reside in that:
1. the utility model has the advantages of high automation level of equipment, small space occupation, low system investment, high waste heat recovery rate and the like. Meanwhile, the method realizes the complete recycling of the two resources of 'slag heat' and reduces the pollution to the atmosphere, and is the leap-type upgrade of the prior steel slag treatment process technical equipment.
2. The utility model discloses the broken bits of broken bits slag of 200 degrees below is got rid of in succession to the single cylinder cooler, and partly carry roll-in breaker loading attachment and by cyclic utilization, and partly carry the stockyard. The equipment realizes complete closed crushing heat exchange of the steel slag, reduces the emission of flue gas and improves the heat exchange efficiency.
3. The utility model discloses realize the effective utilization of slag waste heat, reduce smoke emission to satisfy the requirement of environmental protection, when guaranteeing the normal production of iron and steel enterprise, have important meaning to reducing the comprehensive energy consumption of iron and steel enterprise.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of an overall structure provided by an embodiment of the present invention;
fig. 2 is a cross-sectional view of a rolling crusher according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of a rolling crusher according to an embodiment of the present invention.
Description of reference numerals: 1-low-temperature steel slag feeding device, 2-high-temperature steel slag tipping device, 3-rolling crusher, 4-chain plate conveyor, 5-cooling feeding device, 6-single-cylinder cooler, 7-blower, 8-chain plate conveyor, 9-induced draft fan, 10-cyclone dust collector, 11-waste heat boiler, 12-and dust-removing device, 3-1: feed opening device, 3-2: bulk material stacking part, 3-3: roller riding wheel catch wheel device, 3-4: crushing roller supporting device, 3-5: roller drive device, 3-6: crushing roller driving device, 3-7: crusher rear cover, 3-8: drum rear end semi-annular striker plate, 3-9: flexible sealing structure, 3-10: roller, 3-11: crushing roller, 3-12: roller front end annular striker plate, 3-13: crusher front cover, 3-14: high-temperature draught fan interface, 3-15: feeding port, 5-1: aggregate bin, 5-2: a screw conveyor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Example (b):
as shown in fig. 1-3, the utility model provides a high temperature steel slag roll-in crushing forced air cooling waste heat recovery device, include: the system comprises a low-temperature steel slag feeding device 1, a high-temperature steel slag tipping device 2, a rolling crusher 3, a chain plate conveyor 4, a cooling feeding device 5, a single-cylinder cooler 6, an air blower 7, a chain plate conveyor 8, an induced draft fan 9, a cyclone dust collector 10, a waste heat boiler 11 and a dust removal device 12; the low-temperature steel slag feeding device 1 is arranged above one side of the rolling crusher 3, and the high-temperature steel slag tipping device 2 is arranged below the low-temperature steel slag feeding device 1; one end of the chain plate type conveyor 4 is connected with the lower side of the rolling crusher 3, the other end of the chain plate type conveyor is connected with the cooling feeding device 5, and the steel slag is conveyed to the cooling feeding device 5 through the chain plate type conveyor 4; the single-cylinder cooler 6 comprises a feeding hole, a discharging hole, a cylinder, a driving device and a lifting plate, wherein the lifting plate is arranged inside the single-cylinder cooler 6; the cooling feeding device 5 is arranged above one side of the single-cylinder cooler 6 and is connected with a feeding hole of the single-cylinder cooler 6; the cylinder of the single-cylinder cooling machine 6 continuously rotates through a driving device, and the steel slag is continuously lifted through a lifting plate and exchanges heat with cold air fed by an air blower 7; the blower 7 is positioned above one side of the single-cylinder cooler 6 and communicated with the single-cylinder cooler 6; a chain plate conveying device 8 is arranged below a discharge hole of the single-cylinder cooler 6; the induced draft fan 9 is arranged below one side of the rolling crusher 3, and the other side of the induced draft fan 9 is sequentially provided with a cyclone dust collector 10, a waste heat boiler 11 and a dust removal device 12; the inlet of the draught fan 9 is connected with the rolling crusher 3, and the outlet is connected with the air inlet of the cyclone dust collector 10; an air inlet of the cyclone dust collector 10 is respectively connected with an outlet of the rolling crusher 3 and an outlet of the single-cylinder cooler 6, and an air outlet of the cyclone dust collector 10 is connected with an air inlet of the waste heat boiler 11 and used for generating power by utilizing heat energy in high-temperature air; the gas outlet of the waste heat boiler 11 is connected with a dust removal device 12, and is used for further removing dust from the flue gas discharged by the waste heat boiler 11 and discharging the flue gas into the atmosphere after the flue gas reaches the emission standard.
Further, the rolling crusher 3 is of a roller type, and the rolling crusher 3 comprises a feeding opening device 3-1, a large material stacking position 3-2, a roller riding wheel catch wheel device 3-3, a crushing roller supporting device 3-4, a roller driving device 3-5, a crushing roller driving device 3-6, a crusher rear cover 3-7, a roller rear end semi-annular material baffle plate 3-8, a flexible sealing structure 3-9, a roller 3-10, a crushing roller 3-11, a roller front end annular material baffle plate 3-12, a crusher front cover 3-13, a high-temperature draught fan interface 3-14 and a feeding opening 3-15;
the feeding ports 3-15 are positioned below one side of the low-temperature steel slag feeding device 1 and used for feeding high-temperature steel slag and low-temperature steel slag; a feeding opening device 3-1 is arranged above one side of the feeding opening 3-15, and the feeding opening device 3-1 is fixed on the roller 3-10 and is pushed by a hydraulic cylinder for closing and opening the feeding opening; the large material stacking part 3-2 is positioned below one side of the feeding port 3-15 and used for pushing and storing large materials which are difficult to crush by the crushing roller 3-11; a roller riding wheel catch wheel device 3-3 is arranged below the roller 3-10; the roller driving device 3-5 is arranged on one side of the roller 3-10 and used for driving and controlling the roller 3-10 to rotate and stop in the positive and negative directions; the semi-annular material baffle 3-8 at the rear end of the roller is fixed at one end of the roller 3-10, and the conversion between material blocking and material discharging is realized through the rotation of the roller 3-10; the front end annular striker plate 3-12 of the roller is fixed at one end of the roller 3-10 far away from the rear end semi-annular striker plate 3-8 of the roller and is used for preventing the materials of the roller 3-10 from coming out of the front end; the crusher rear cover 3-7 is arranged at one end of the roller 3-10, the crusher rear cover 3-7 and the roller 3-10 are sealed through a flexible sealing structure 3-9, and the crusher rear cover 3-7 is connected with the chain plate type conveyor 4; the crusher front cover 3-13 is arranged at one end of the roller 3-10 far away from the crusher rear cover 3-7, the crusher front cover 3-13 and the roller 3-10 are sealed by a flexible sealing structure 3-9, a high-temperature induced draft fan connector 3-14 is arranged above one side of the crusher front cover 3-13, and the crusher front cover 3-13 is connected with the induced draft fan 9; the crushing roller supporting devices 3-4 are respectively arranged at one side of two ends of the rear cover 3-7 of the crusher and one side of two ends of the front cover 3-13 of the crusher, and the crushing roller supporting devices 3-4 fix the crushing rollers 3-11 in the axial direction and the radial direction; the crushing roller driving device 3-6 is fixed on the crushing roller supporting device 3-4 at the front end of the rolling crusher 3 and is used for driving and controlling the crushing rollers 3-11 to rotate and stop in the positive and negative directions.
Furthermore, the peripheries of the chain plate type conveyor 4 and the chain plate type conveying device 8 are provided with closed isolation covers; the device is used for preventing the steel slag from discharging smoke to the atmosphere in the conveying process.
Further, the cooling and feeding device 5 comprises a collecting hopper 5-1 and a screw conveyor 5-2.
Furthermore, the crushing roller 3-11 is spirally provided with crushing teeth, and the axial end surfaces of the crushing teeth are spiral curved surfaces; when the crushing roller 3-11 rotates, the steel slag can be pushed to move back and forth and discharge in the roller 3-10.
Further, the roller 3-10 comprises a welded barrel, a high-temperature-resistant heat-insulating coating, a high-temperature-resistant heat-insulating inorganic material and a high-temperature-resistant wear-resistant alloy lining plate; the roller 3-10 is formed by welding alloy steel materials, the inner side surface of the roller body is sprayed with high-temperature resistant heat insulation coating capable of resisting 1000 ℃, the thickness of the high-temperature resistant heat insulation coating is 5mm, the high-temperature resistant heat insulation inorganic material with the thickness of 20mm is paved on the high-temperature resistant heat insulation coating, and the high-temperature wear-resistant alloy lining plate is arranged on the innermost layer of the roller 3-10 and connected with the roller body through high-strength bolts.
When the large objects which are difficult to crush in the slag tank enter the rolling crusher 3, the roller 3-10 is driven to rotate to the lower position of the side of the lower position, and the crushing roller 3-11 rotates to push the large objects which are difficult to crush to fall to the large material stacking position 3-2.
The high-temperature steel slag tipping device 2 dumps the high-temperature steel slag to the rolling crusher 3 through the feeding port 3-15, meanwhile, the low-temperature steel slag feeding device 1 conveys the fine steel slag with the temperature lower than 200 ℃ to the rolling crusher 3 according to the proportion of 0.5-1, the high-temperature steel slag and the low-temperature steel slag are crushed and stirred by the crushing roller 3-11 to be mixed for forced heat exchange between the high-temperature steel slag and the low-temperature steel slag and heat exchange between the high-temperature steel slag and air, so that the temperature of the steel slag is rapidly reduced, and the fluidity of the steel slag is improved.
The working principle is as follows: the method comprises the steps of simultaneously adding high-temperature steel slag and fine steel slag below 200 ℃ into a rolling crusher 3 according to a proportion, stirring and mixing and crushing high-temperature large steel slag, liquid steel slag and low-temperature steel slag, utilizing air and high-temperature steel slag heat energy replacement and high-temperature steel slag and low-temperature steel slag heat energy replacement to rapidly cool the steel slag in the rolling crusher 3 to be below 800 ℃ so that the steel slag has good fluidity, sending the air heated at high temperature into a waste heat boiler 11 through an induced draft fan 9 and a cyclone dust collector 10 and generating steam for utilization, and simultaneously sending the steel slag mixed and crushed to be below 800 ℃ into a single-cylinder cooler 6 from a rear-end discharge port of the rolling crusher 3 through a chain plate conveyor 4 and a cooling feeding device 5. In the single-cylinder cooling machine 6, steel slag with the temperature of below 800 ℃ directly exchanges heat with air sent by the air blower 7, high-temperature air is sent to the waste heat boiler 11 through the cyclone dust collector 10 and generates steam for utilization, waste gas is discharged into the atmosphere through the dust collector 12, and steel slag with the temperature of below 200 ℃ continuously discharged from the discharge port of the single-cylinder cooling machine 6 is respectively conveyed to the stockyard and the low-temperature steel slag feeding device 1 through the chain plate conveying device 8.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. The utility model provides a broken forced air cooling waste heat recovery device of high temperature slag roll-in which characterized in that includes: the system comprises a low-temperature steel slag feeding device (1), a high-temperature steel slag tipping device (2), a rolling crusher (3), a chain plate conveyor (4), a cooling feeding device (5), a single-cylinder cooler (6), an air blower (7), a chain plate conveyor (8), an induced draft fan (9), a cyclone dust collector (10), a waste heat boiler (11) and a dust removal device (12); the low-temperature steel slag feeding device (1) is arranged above one side of the rolling crusher (3), and the high-temperature steel slag tipping device (2) is positioned below the low-temperature steel slag feeding device (1); one end of the chain plate type conveyor (4) is connected with the lower side of the rolling crusher (3), the other end of the chain plate type conveyor is connected with the cooling feeding device (5), and the steel slag is conveyed to the cooling feeding device (5) through the chain plate type conveyor (4); the cooling feeding device (5) is arranged above one side of the single-cylinder cooler (6) and is connected with a feeding hole of the single-cylinder cooler (6); the air blower (7) is positioned above one side of the single-cylinder cooler (6) and communicated with the single-cylinder cooler (6); a chain plate conveying device (8) is arranged below the discharge hole of the single-cylinder cooler (6); the induced draft fan (9) is arranged below one side of the rolling crusher (3), and the other side of the induced draft fan (9) is sequentially provided with a cyclone dust collector (10), a waste heat boiler (11) and a dust removal device (12); one end of a draught fan (9) is connected with the rolling crusher (3), and the other end is connected with a cyclone dust collector (10); the connection end of a draught fan (9) of the cyclone dust collector (10) is connected with the single-cylinder cooler (6), and the other end of the cyclone dust collector (10) is connected with the waste heat boiler (11); the other end of the waste heat boiler (11) is connected with a dust removal device (12).
2. The device for recycling waste heat generated by rolling, crushing and air-cooling high-temperature steel slag according to claim 1, the roller crusher (3) is of a roller type, and the roller crusher (3) comprises a feeding opening device (3-1), a large material stacking part (3-2), a roller riding wheel catch wheel device (3-3), a crushing roller supporting device (3-4), a roller driving device (3-5), a crushing roller driving device (3-6), a crusher rear cover (3-7), a roller rear end semi-annular striker plate (3-8), a flexible sealing structure (3-9), a roller (3-10), a crushing roller (3-11), a roller front end annular striker plate (3-12), a crusher front cover (3-13), a high-temperature draught fan interface (3-14) and a feeding opening (3-15);
the feeding port (3-15) is positioned below one side of the low-temperature steel slag feeding device (1); a feeding opening device (3-1) is arranged above one side of the feeding opening (3-15), and the feeding opening device (3-1) is fixed on the roller (3-10); the large material stacking part (3-2) is positioned below one side of the feeding port (3-15); a roller riding wheel catch wheel device (3-3) is arranged below the roller (3-10); the roller driving device (3-5) is arranged at one end of the roller (3-10) and used for driving and controlling the roller (3-10) to rotate and stop in the positive and negative directions; the semi-annular striker plate (3-8) at the rear end of the roller is fixed at one end of the roller (3-10); the front end annular striker plate (3-12) of the roller is fixed at one end of the roller (3-10) far away from the rear end semi-annular striker plate (3-8) of the roller; the crusher rear cover (3-7) is arranged at one end of the roller (3-10), the crusher rear cover (3-7) and the roller (3-10) are sealed through a flexible sealing structure (3-9), and the crusher rear cover (3-7) is connected with the chain plate type conveyor (4); the crusher front cover (3-13) is arranged on one side, away from the crusher rear cover (3-7), of the roller (3-10), the crusher front cover (3-13) and the roller (3-10) are sealed through a flexible sealing structure (3-9), a high-temperature induced draft fan connector (3-14) is arranged above one side of the crusher front cover (3-13), and the crusher front cover (3-13) is connected with the induced draft fan (9); the crushing roller supporting devices (3-4) are respectively arranged at one side of two ends of the crusher rear cover (3-7) and the crusher front cover (3-13), and the crushing roller supporting devices (3-4) are used for fixing the crushing rollers (3-11) in the axial direction and the radial direction; the crushing roller driving device (3-6) is fixed on the crushing roller supporting device (3-4) at the front end of the rolling crusher (3) and is used for driving and controlling the crushing rollers (3-11) to rotate and stop in the positive and negative directions.
3. The high-temperature steel slag rolling crushing air cooling waste heat recovery device as claimed in claim 1, wherein the peripheries of the chain plate conveyor (4) and the chain plate conveyor (8) are provided with closed isolation covers.
4. The device for recycling waste heat generated by rolling, crushing and air cooling of high-temperature steel slag according to claim 1, wherein the cooling and feeding device (5) comprises a collecting hopper (5-1) and a screw conveyor (5-2).
5. The device for recycling waste heat generated by rolling, crushing and air cooling of high-temperature steel slag as claimed in claim 2, wherein the crushing rollers (3-11) are spirally provided with crushing teeth, and the axial end surfaces of the crushing teeth are spiral curved surfaces.
6. The device for recycling the waste heat generated by rolling, crushing and air cooling the high-temperature steel slag according to claim 2, wherein the roller (3-10) comprises a welded barrel, a high-temperature-resistant heat-insulating coating, a high-temperature-resistant heat-insulating inorganic material and a high-temperature-resistant wear-resistant alloy lining plate; the roller (3-10) is formed by welding alloy steel materials, the inner side surface of the roller body is sprayed with high-temperature-resistant heat-insulation coating capable of resisting 1000 ℃, the thickness of the high-temperature-resistant heat-insulation coating is 5mm, the high-temperature-resistant heat-insulation inorganic material with the thickness of 20mm is paved on the high-temperature-resistant heat-insulation coating, and the high-temperature wear-resistant alloy lining plate is arranged on the innermost layer of the roller (3-10) and connected with the roller body through high-strength bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120901023.5U CN214765803U (en) | 2021-04-28 | 2021-04-28 | High-temperature steel slag rolling crushing air-cooling waste heat recovery device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114058746A (en) * | 2022-01-17 | 2022-02-18 | 中冶节能环保有限责任公司 | Steel slag crushing treatment system and method |
| CN114891934A (en) * | 2022-04-29 | 2022-08-12 | 刘春茗 | Steel slag roller type crushing, air quenching and cooling dry processing device and working method thereof |
| CN115820949A (en) * | 2022-11-14 | 2023-03-21 | 唐山市丰南区中合环境科技有限公司 | Steel slag recovery system |
| CN116254377A (en) * | 2023-04-06 | 2023-06-13 | 青岛达能环保设备股份有限公司 | Steel slag treatment system |
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2021
- 2021-04-28 CN CN202120901023.5U patent/CN214765803U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114058746A (en) * | 2022-01-17 | 2022-02-18 | 中冶节能环保有限责任公司 | Steel slag crushing treatment system and method |
| CN114891934A (en) * | 2022-04-29 | 2022-08-12 | 刘春茗 | Steel slag roller type crushing, air quenching and cooling dry processing device and working method thereof |
| CN114891934B (en) * | 2022-04-29 | 2024-05-31 | 刘春茗 | Steel slag roller type crushing, air quenching and cooling dry treatment device and working method thereof |
| CN115820949A (en) * | 2022-11-14 | 2023-03-21 | 唐山市丰南区中合环境科技有限公司 | Steel slag recovery system |
| CN116254377A (en) * | 2023-04-06 | 2023-06-13 | 青岛达能环保设备股份有限公司 | Steel slag treatment system |
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