CN104372125A - Steel slag pressurized hot-stuffing device and using method thereof - Google Patents
Steel slag pressurized hot-stuffing device and using method thereof Download PDFInfo
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- CN104372125A CN104372125A CN201410557179.0A CN201410557179A CN104372125A CN 104372125 A CN104372125 A CN 104372125A CN 201410557179 A CN201410557179 A CN 201410557179A CN 104372125 A CN104372125 A CN 104372125A
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- hot
- vexed
- slag
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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
- C21B3/08—Cooling slag
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2200/00—Recycling of non-gaseous waste material
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- Metallurgy (AREA)
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Abstract
The invention provides a steel slag pressurized hot-stuffing device and a using method thereof. The hot-stuffing device comprises a barrel-shaped hot-stuffing tank, a seal cover and a control device, wherein the seal cover is provided with a relieving exhaust valve and a water spray nozzle; a draining device is arranged at the bottom of the hot-stuffing tank; a barrel-shaped slag hopper is put in the hot-stuffing tank. By utilizing the hot stuffing device, the hot-stuffing cycle is shortened from 12 hours to 2 hours, and the hot-stuffing cycle is greatly shortened; compared with a traditional hot-stuffing pit, the steel slag pressurized hot-stuffing device has the advantages that an excavator is not needed, the cost for vehicle maintenance can be reduced by 2 million RMB per year, the cost for diesel oil can be reduced by 3 million RMB per year, and water can be reduced by 40,000 tons per year, so that the production cost can be greatly reduced; the operation for excavating slag by virtue of the excavator is not used, and steel slag does not drop in the whole production process, so that steam and dust pollution cannot be generated, and environment cannot be polluted; regarding a production line with the same scale, the floor area of the hot-stuffing device is one third of that of a traditional hot-stuffing pit, so that the floor area is saved.
Description
Technical field
The invention belongs to slag technical field of processing equipment, relate to a kind of hot disintegrating device, particularly a kind of slag has pressure hot disintegrating device and using method thereof.
Background technology
Iron And Steel Industry is the basic industry of national economy, slag is as the derivative of process for making flow process, along with its annual production of raising of output of steel is also constantly increasing progressively, but the utilization ratio of data presentation slag is but very low, and the target of distance iron and steel enterprise solid waste zero release also has a segment distance.Active development and the effective treatment technology of application of advanced and recycling new technology, improving its utilization ratio and added value, is development of iron and steel enterprises recycling economy, one of important topic realizing Sustainable development.At present, hot steel slag recycling mode mainly contains water quenching, hot application method, hot vexed method, tray sprinkles method, wind quenches method etc., wherein hot vexed method more and more receives publicity.
Steel slag hot disintegrating technique to pour into just solidifying the slag being also in high temperature in hot disintegrating device and to spray water, and at high temperature produces steam.Owing to containing free calcium oxide in slag, meet water generation calcium hydroxide and also produce expansion, thus impel slag to ftracture and efflorescence.Current domestic that to use hot vexed hole to carry out heat to slag vexed is more, and main processes comprises following five steps: (1) is cold slag just; (2) slag is poured into hot vexed hole; (3) water spray heat is added a cover vexed; (4) excavator slag; (5) entrucking outward transport.There is following shortcoming in this technique: 1. the hot vexed time is long, once hot vexed general needs 12 hours; 2. production cost is high, and mainly water consumption is large, and excavator, shovel loader maintenance cost and diesel consumption are high; 3. dig steam in slag process, dust is large, contaminate environment; 4. floor space is large.
Summary of the invention
The present invention, in order to overcome the defect of prior art, devises that the vexed efficiency of a kind of heat is high, the cycle is short, cost is low, free from environmental pollution, that floor space is little slag has pressure hot disintegrating device and using method thereof.
Concrete technical scheme of the present invention is: a kind of slag has pressure hot disintegrating device, comprise the vexed pond of heat of drum-shaped, sealing cover, control device, sealing cover and the vexed pond of heat seal locks, the cavity in the lower surface of sealing cover and the vexed pond of heat surrounds hot vexed room, sealing cover is provided with pressure release vent valve and water jet, water jet is communicated with spray equipment, pressure release vent valve is all connected with control device with water jet, the bottom in the vexed pond of heat is provided with water-freeing arrangement, water-freeing arrangement is communicated with the vexed room of heat, key is: the slag bucket setting up drum-shaped, slag bucket is placed in hot vexed pond, the external diameter of slag bucket is less than the internal diameter in hot vexed pond, the height of slag bucket is less than the height of inside, hot vexed pond.
The outer wall of described slag bucket is symmetrically arranged with two suspension ring.
The base plate in the vexed pond of described heat is obliquely installed, and water-freeing arrangement is arranged on the lowest part in hot vexed pond.
Described water-freeing arrangement comprises water shoot, and the vexed pond of water shoot break-through heat is communicated with the vexed room of heat, and water shoot is provided with water discharge valve, and water discharge valve is connected with control device.
Described heat is provided with discoidal back up pad in vexed pond, and back up pad is fixedly connected with the inwall in the vexed pond of heat, back up pad offers multiple discharge orifice, and the cavity between back up pad and heat vexed pond base plate is overcurrent chamber, and water-freeing arrangement is communicated with overcurrent chamber.
Sealing-ring is provided with between the contact surface in described sealing cover and the vexed pond of heat.
The vexed pond of described heat is concrete sump.
Slag has a using method for pressure hot disintegrating device, and key is: described method comprises the following steps:
A, after being chilled to 300 DEG C at the beginning of the slag in steel-making converter, load slag bucket;
B, utilize overhead traveling crane to be hung in by slag bucket in hot vexed pond, close lock sealing lid;
C, utilize control device to make water jet to the slag water spray in slag bucket, when the pressure of the vexed indoor of heat is higher than 0.3MPa, control device makes pressure release vent valve open to carry out pressure release, makes water jet stop water spray simultaneously; When pressure is lower than 0.3MPa, control device makes water jet continue water spray, such circulation continuous 1.5 ~ 2.5h, when the temperature of the vexed indoor of heat is down to 60 DEG C, utilizes control device to make water jet stop water spray;
D, utilize control device to open pressure release vent valve to carry out pressure release, after pressure release completes, utilize control device that water-freeing arrangement is opened, by clean for the water discharge in vexed for heat pond;
E, open sealing cover, with overhead traveling crane, slag bucket is hung out, slag is poured into slag dumping in wagon tremie.
Be when the pressure of hot vexed indoor reaches 0.32MPa in step c, control device makes pressure release vent valve open to carry out pressure release, makes water jet stop water spray simultaneously; When Pressure Drop is to 0.28MPa, control device makes water jet continue water spray, such circulation continuous 2h.
The invention has the beneficial effects as follows: slag is contained in heat in slag bucket vexed, the pool wall in not vexed with the heat pond of slag contacts, so the present invention does not have particular requirement to the vexed pond of heat, other off-set facility need not be added, slag bucket is lifted up into by overhead traveling crane entirety and is hung out, eliminate and dig slag process, this method has following advantage: 1. raise the efficiency: the hot vexed cycle shortened to 2 hours by 12 hours; 2. cost-saving: compared with the vexed hole of tradition heat, no longer usage mining machine, annual saving vehicle maintenance expense 2,000,000 yuan, annual saving diesel oil expense 3,000,000 yuan, annual water saving 40,000 tons; 3. free from environmental pollution: carry out the operation of digging slag owing to not utilizing excavator, whole production process slag does not land, so do not produce steam and dust pollution; 4. save the area: same size production line, it is 1/3rd of the hot vexed hole of tradition that this hot disintegrating device takes up an area.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In accompanying drawing, 1 represents hot vexed pond, and 2 represent sealing cover, and 3 represent pressure release vent valve, and 4 represent water jet, and 5 represent slag bucket, and 6 represent suspension ring, and 7 represent water shoot, and 8 represent water discharge valve, and 9 represent back up pad.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described:
As shown in Figure 1, a kind of slag has pressure hot disintegrating device, comprise the vexed pond 1 of heat of drum-shaped, sealing cover 2, control device, the vexed pond 1 of heat is preferably concrete sump, sealing cover 2 and the vexed pond 1 of heat seal locks, sealing-ring is provided with between the contact surface in sealing cover 2 and the vexed pond 1 of heat, sealing-ring is utilized to seal, and do not adopt water sealed tank to seal, because the pressure utilizing water sealed tank to seal hot vexed indoor is up to 0.03MPa, and the pressure utilizing sealing-ring to seal hot vexed indoor is normally 0.3MPa, can reach 0.5MPa, differ 10 times more than, increase pressure and can accelerate pulverizing speed, the shortening heat vexed cycle.The cavity in the lower surface of sealing cover 2 and the vexed pond of heat 1 surrounds hot vexed room, sealing cover 2 is provided with pressure release vent valve 3 and water jet 4, water jet 4 is communicated with spray equipment, pressure release vent valve 3 is all connected with control device with water jet 4, the bottom in the vexed pond 1 of heat is provided with water-freeing arrangement, and water-freeing arrangement comprises water shoot 7, and the vexed pond 1 of water shoot 7 break-through heat is communicated with the vexed room of heat, water shoot 7 is provided with water discharge valve 8, water discharge valve 8 is connected with control device.The base plate in the vexed pond 1 of heat is obliquely installed, and water shoot 7 is arranged on the lowest part in hot vexed pond 1, is conducive to water body like this and flows out, can accelerate drainage speed.
Heat is provided with discoidal back up pad 9 in vexed pond 1, back up pad 9 is fixedly connected with the inwall in the vexed pond 1 of heat, back up pad 9 offers multiple discharge orifice, cavity between back up pad 9 and heat vexed pond 1 base plate is overcurrent chamber, water shoot 7 is communicated with overcurrent chamber, and the slag bucket 5 of drum-shaped is placed in back up pad 9, and water body flows in overcurrent chamber by discharge orifice, slag bucket 5 can be avoided directly to contact with water body and be corroded, thus extend the work-ing life of slag bucket 5.The external diameter of slag bucket 5 is less than the internal diameter in hot vexed pond 1, the inwall in the vexed pond 1 of slag bucket 5 and heat can be avoided directly to contact and produce friction, slag bucket 5 is lifted up into when hanging out convenient laborsaving.The height of slag bucket 5 is less than the height of inside, hot vexed pond 1, sealing cover 2 can be sealed with the vexed pond 1 of heat and lock.The outer wall of slag bucket 5 is symmetrically arranged with two suspension ring 6, after having had suspension ring 6, make overhead traveling crane lift up into hang out slag bucket 5 time more convenient.
Hot disintegrating device in the present invention comprises following five steps when concrete use:
A, after being chilled to 300 DEG C at the beginning of the slag in steel-making converter, load slag bucket 5;
B, utilize overhead traveling crane to tangle suspension ring 6 slag bucket 5 to be hung in hot vexed pond 1, close lock sealing lid 2;
C, utilize control device make water jet 4 in slag bucket 5 slag water spray, water becomes steam rapidly after running into slag, and the pressure of hot vexed indoor rises rapidly, when the pressure of the vexed indoor of heat reaches 0.32MPa, control device makes pressure release vent valve 3 open to carry out pressure release, makes water jet 4 stop water spray simultaneously; When Pressure Drop is to 0.28MPa, control device makes water jet 4 continue water spray, such circulation continuous 1.5 ~ 2.5h, preferred 2h, now the temperature of hot vexed indoor is down to 60 DEG C, vapor condensation Cheng Shui, and the discharge orifice in back up pad 9 enters in the overcurrent chamber below back up pad 9;
D, utilize control device to open pressure release vent valve 3 to carry out pressure release, after pressure release completes, utilize control device that water discharge valve 8 is opened, the water in overcurrent chamber flows out through water shoot 7, and discharge is clean;
E, confirm there is no pressure in hot vexed pond 1 after, open sealing cover 2, with overhead traveling crane, slag bucket 5 hung out, slag is poured into slag dumping in wagon tremie, so far namely complete a vexed process of heat, can circulate according to need of production and carry out step a to step e, carry out repeatedly hot vexed process continuously.
In sum, utilize the hot disintegrating device in the present invention to carry out heat vexed, the hot vexed cycle shortened to 2 hours by 12 hours, substantially reduced the hot vexed cycle; Compared with the vexed hole of tradition heat, no longer usage mining machine, annual saving vehicle maintenance expense 2,000,000 yuan, annual saving diesel oil expense 3,000,000 yuan, annual water saving 40,000 tons, has saved production cost greatly; Carry out the operation of digging slag owing to not utilizing excavator, whole production process slag does not land, so do not produce steam and dust pollution, does not pollute the environment; Same size production line, it is 1/3rd of the hot vexed hole of tradition that this hot disintegrating device takes up an area, and can save floor space.
Claims (9)
1. a slag has pressure hot disintegrating device, comprise the vexed pond of heat (1) of drum-shaped, sealing cover (2), control device, sealing cover (2) and the vexed pond of heat (1) seal locks, the lower surface of sealing cover (2) and the cavity in the vexed pond of heat (1) surround hot vexed room, sealing cover (2) is provided with pressure release vent valve (3) and water jet (4), water jet (4) is communicated with spray equipment, pressure release vent valve (3) is all connected with control device with water jet (4), the bottom of the vexed pond of heat (1) is provided with water-freeing arrangement, water-freeing arrangement is communicated with the vexed room of heat, it is characterized in that: the slag bucket (5) setting up drum-shaped, slag bucket (5) is placed in hot vexed pond (1), the external diameter of slag bucket (5) is less than the internal diameter of hot vexed pond (1), the height of slag bucket (5) is less than the inner height of hot vexed pond (1).
2. a kind of slag according to claim 1 has pressure hot disintegrating device, it is characterized in that: the outer wall of described slag bucket (5) is symmetrically arranged with two suspension ring (6).
3. a kind of slag according to claim 1 has pressure hot disintegrating device, it is characterized in that: the base plate in the vexed pond of described heat (1) is obliquely installed, and water-freeing arrangement is arranged on the lowest part of hot vexed pond (1).
4. a kind of slag according to claim 1 has pressure hot disintegrating device, it is characterized in that: described water-freeing arrangement comprises water shoot (7), water shoot (7) the break-through vexed pond of heat (1) is communicated with the vexed room of heat, water shoot (7) is provided with water discharge valve (8), water discharge valve (8) is connected with control device.
5. a kind of slag according to claim 1 has pressure hot disintegrating device, it is characterized in that: in the vexed pond of described heat (1), be provided with discoidal back up pad (9), back up pad (9) is fixedly connected with the inwall in the vexed pond of heat (1), (9) offer multiple discharge orifice to back up pad, cavity between back up pad (9) and the vexed pond of heat (1) base plate is overcurrent chamber, and water-freeing arrangement is communicated with overcurrent chamber.
6. a kind of slag according to claim 1 has pressure hot disintegrating device, it is characterized in that: be provided with sealing-ring between described sealing cover (2) and the contact surface in the vexed pond of heat (1).
7. a kind of slag according to claim 1 has pressure hot disintegrating device, it is characterized in that: the vexed pond of described heat (1) is concrete sump.
8. slag as claimed in claim 1 has a using method for pressure hot disintegrating device, it is characterized in that: described method comprises the following steps:
A, after being chilled to 300 DEG C at the beginning of the slag in steel-making converter, load slag bucket (5);
B, utilize overhead traveling crane to be hung in by slag bucket (5) in hot vexed pond (1), close lock sealing lid (2);
C, utilize control device make water jet (4) in slag bucket (5) slag water spray, when the pressure of the vexed indoor of heat is higher than 0.3MPa, control device makes pressure release vent valve (3) open to carry out pressure release, makes water jet (4) stop water spray simultaneously; When pressure is lower than 0.3MPa, control device makes water jet (4) continue water spray, such circulation continuous 1.5 ~ 2.5h, when the temperature of the vexed indoor of heat is down to 60 DEG C, utilizes control device to make water jet (4) stop water spray;
D, utilize control device to open pressure release vent valve (3) to carry out pressure release, after pressure release completes, utilize control device that water-freeing arrangement is opened, by clean for the water discharge in vexed for heat pond (1);
E, open sealing cover (2), with overhead traveling crane, slag bucket (5) is hung out, slag is poured into slag dumping in wagon tremie.
9. a kind of slag according to claim 8 has the using method of pressure hot disintegrating device, it is characterized in that: be when the pressure of hot vexed indoor reaches 0.32MPa in step c, control device makes pressure release vent valve (3) open to carry out pressure release, makes water jet (4) stop water spray simultaneously; When Pressure Drop is to 0.28MPa, control device makes water jet (4) continue water spray, such circulation continuous 2h.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410557179.0A CN104372125B (en) | 2014-10-20 | 2014-10-20 | A kind of slag has pressure hot disintegrating device and using method thereof |
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| CN201410557179.0A CN104372125B (en) | 2014-10-20 | 2014-10-20 | A kind of slag has pressure hot disintegrating device and using method thereof |
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| CN104372125B CN104372125B (en) | 2016-06-22 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105063255A (en) * | 2015-08-06 | 2015-11-18 | 中冶节能环保有限责任公司 | Vertical steel slag pressure hot-disintegration still kettle and slag processing method |
| CN112680554A (en) * | 2020-12-09 | 2021-04-20 | 钢城集团凉山瑞海实业有限公司 | Method for improving hot stuffiness efficiency of steel slag and hot stuffiness device |
| CN112941255A (en) * | 2021-04-02 | 2021-06-11 | 中冶节能环保有限责任公司 | Water bath cooling treatment device and method for casting residues |
| CN112941254A (en) * | 2021-03-19 | 2021-06-11 | 中冶节能环保有限责任公司 | Solid steel slag quenching treatment device and method |
| CN113106176A (en) * | 2021-03-15 | 2021-07-13 | 邹国泉 | Steel slag air blowing cooling thermal crushing and high-temperature high-pressure water soaking treatment method |
| CN113943840A (en) * | 2021-10-19 | 2022-01-18 | 新疆八一钢铁股份有限公司 | Low-emission treatment method for steel-making metallurgical steel slag |
| CN115094167A (en) * | 2022-05-29 | 2022-09-23 | 中冶华天工程技术有限公司 | Hot disintegrating method for steel slag |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105063255A (en) * | 2015-08-06 | 2015-11-18 | 中冶节能环保有限责任公司 | Vertical steel slag pressure hot-disintegration still kettle and slag processing method |
| CN112680554A (en) * | 2020-12-09 | 2021-04-20 | 钢城集团凉山瑞海实业有限公司 | Method for improving hot stuffiness efficiency of steel slag and hot stuffiness device |
| CN113106176A (en) * | 2021-03-15 | 2021-07-13 | 邹国泉 | Steel slag air blowing cooling thermal crushing and high-temperature high-pressure water soaking treatment method |
| CN112941254A (en) * | 2021-03-19 | 2021-06-11 | 中冶节能环保有限责任公司 | Solid steel slag quenching treatment device and method |
| CN112941255A (en) * | 2021-04-02 | 2021-06-11 | 中冶节能环保有限责任公司 | Water bath cooling treatment device and method for casting residues |
| CN112941255B (en) * | 2021-04-02 | 2024-01-09 | 中冶节能环保有限责任公司 | Water bath cooling treatment device and method for casting residues |
| CN113943840A (en) * | 2021-10-19 | 2022-01-18 | 新疆八一钢铁股份有限公司 | Low-emission treatment method for steel-making metallurgical steel slag |
| CN115094167A (en) * | 2022-05-29 | 2022-09-23 | 中冶华天工程技术有限公司 | Hot disintegrating method for steel slag |
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