CN207498405U - Steel waste smelting system based on rotary hearth furnace and melting reduction device - Google Patents
Steel waste smelting system based on rotary hearth furnace and melting reduction device Download PDFInfo
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- CN207498405U CN207498405U CN201721312088.6U CN201721312088U CN207498405U CN 207498405 U CN207498405 U CN 207498405U CN 201721312088 U CN201721312088 U CN 201721312088U CN 207498405 U CN207498405 U CN 207498405U
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- rotary hearth
- hearth furnace
- reduction device
- melting reduction
- feed inlet
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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
- Y02P10/20—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
- 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
Abstract
The utility model discloses a kind of steel waste smelting system based on rotary hearth furnace and melting reduction device, including palletizing device, rotary hearth furnace and melting reduction device, the rotary hearth furnace is equipped with feed inlet, discharge port, air inlet and exhaust outlet, the products export of the palletizing device is connected with the feed inlet of the rotary hearth furnace, and the discharge port of the rotary hearth furnace is connected with the feed inlet of the melting reduction device.Be using the beneficial effects of the utility model, can processes composition is complicated, iron content is low ferrous waste, as raw materials for metallurgy, it is restored by two steps, realizes the smelting and high efficiente callback of iron, while recycle other volatile elements, whole system resource recovery is high, no hazardous emission.
Description
Technical field
The utility model is related to a kind of smelting iron and steel systems, and in particular to a kind of based on rotary hearth furnace and melting reduction device
Steel waste smelting system.
Background technology
A large amount of iron-containing waste is generated in steel manufacture process, it is complex in composition, in addition to containing a large amount of ferro elements, also contain
Considerable other various metallic elements and other inorganic non-metallic impurity.At present more typical processing method be as
Capital construction packing material or conduct solid waste are buried.From the point of view of sustainable development, waste has misplaced position
Resource causes vast resources to waste the landfill disposal mode of iron-containing waste, meanwhile, can also have an adverse effect to environment.It is special
Be not at this stage for the high grade iron ore reserve of exploitation seldom in the case of, contain a certain amount of recoverable metal
Smelting iron and steel waste material has higher economic value.At present, also existed using the technology of steel production waste material as raw materials for metallurgy
Deficiency, including production cost height, the problems such as the rate of recovery is low need to rationally design smelting system.
Utility model content
For solution more than technical problem, the utility model provides a kind of steel based on rotary hearth furnace and melting reduction device and gives up
Gurry smelting system.
Technical solution is as follows：
A kind of steel waste smelting system based on rotary hearth furnace and melting reduction device, it is critical that including turning bottom
Stove and melting reduction device are respectively equipped with feed inlet, discharge port, air inlet and exhaust outlet, the rotary hearth furnace on the rotary hearth furnace
Discharge port be connected with the feed inlet of the melting reduction device.Using above design, it the advantage is that iron-containing waste by turning
Prereduction in the stove of bottom can recycle available volatile element, reduce impurity content, improve Iron grade for subsequent
Melting furnace is smelted, and realizes the reduction of two steps.
As optimal technical scheme, the feed inlet of above-mentioned rotary hearth furnace is connected with palletizing device, the air inlet of the rotary hearth furnace
Auxiliary combustion equipment is connected with, the exhaust outlet of the rotary hearth furnace is connected with exhaust gas processing device.
As optimal technical scheme, above-mentioned auxiliary combustion equipment includes combustor and air blower, and the air inlet includes upper air
Mouth and lower air inlet, the hot flame of the combustor enter the rotary hearth furnace, the air inlet of the combustor by the lower air inlet
Mouth is connected with gas inlet pipe；Air is passed through the rotary hearth furnace top by the air blower, which is also passed through institute by air
State combustor.Using above design, it the advantage is that and conveniently the material in rotary hearth furnace is heated and is provided to rotary hearth furnace empty
Gas.
As optimal technical scheme, above-mentioned exhaust gas processing device include set gradually cooling device, filtering recovering device,
Exhaust fan and chimney, the exhaust outlet of the rotary hearth furnace are connected with the cooling device.Using above design, the advantage is that conveniently
The dust in tail gas is removed, valuable volatile element is recycled, tail gas is made to reach discharge standard.
As optimal technical scheme, heat insulation transportation equipment is provided between above-mentioned rotary hearth furnace and the melting reduction device,
The material that the discharge port of the rotary hearth furnace is discharged is transported to the feed inlet of the melting reduction device by the heat insulation transportation equipment.It adopts
With above design, the reduction for the reduction product temperature for reducing rotary hearth furnace in transportational process the advantage is that.
As optimal technical scheme, the feed inlet of above-mentioned palletizing device is connected with charging gear, and the charging gear includes
Mixing arrangement and storage vat, the discharge port of the storage vat are connected with the feed inlet of the mixing arrangement, the mixing arrangement
Discharge port is connected with the feed inlet of the palletizing device.Using above design, it the advantage is that and conveniently raw material is pre-processed,
For pelletizing process.
As optimal technical scheme, above-mentioned storage vat is connected with waste material pretreatment unit, the waste material pretreatment unit packet
Include storage bin, reducing mechanism and transmission device, the waste material in the storage bin is after reducing mechanism processing, by the biography
Device is sent to transport to the storage vat.Using above design, the advantage is that it is convenient raw material in storage bin is carried out processing and
Transport.
As optimal technical scheme, above-mentioned melting reduction device is equipped with gas outlet, which is connected to the cooling
Device.Using above design, the volatile metal that can further contain in recovered flue gas the advantage is that.
As optimal technical scheme, above-mentioned palletizing device is disc balling machine, and the melting reduction device is melting and reducing
Electric furnace, the filtering recovering device are bag hose.Using above design, it the advantage is that these devices are relatively conventional, reliable.
Advantageous effect：Be using the beneficial effects of the utility model, can processes composition is complicated, iron content is low steel give up
Material as raw materials for metallurgy, is restored by two steps, realizes the smelting and high efficiente callback of iron, while recycles other volatility member
Element, whole system resource recovery is high, no hazardous emission.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Specific embodiment
With reference to embodiment and attached drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of steel waste smelting system based on rotary hearth furnace and melting reduction device, fills including pelletizing
1, rotary hearth furnace 2 and melting reduction device 3 are put, the rotary hearth furnace 2 is equipped with feed inlet, discharge port, air inlet and exhaust outlet, described
The discharge port of palletizing device 1 is connected with the feed inlet of the rotary hearth furnace 2, discharge port and the melting and reducing of the rotary hearth furnace 2
The feed inlet of device 3 is connected；The feed inlet of the palletizing device 1 is connected with charging gear, and the charging gear includes mixing and fills
11 and storage vat 12 are put, the discharge port of the mixing arrangement 11 is connected with the feed inlet of the palletizing device 1, the mixing arrangement
11 feed inlet is connected with the storage vat 12；The storage vat 12 is also associated with waste material pretreatment unit, and the waste material is located in advance
It manages device and includes storage bin 13, reducing mechanism 14 and transmission device 15, the waste material in the storage bin 13 is filled by described crush
After putting 14 processing, transported by the transmission device 15 to the storage vat 12.
Green pellets prepared by the palletizing device 1 enters the rotary hearth furnace 2, and the air inlet of the rotary hearth furnace 2 is including enterprising
Gas port and lower air inlet, the rotary hearth furnace 2 are connected with combustor 4, and the hot flame of the combustor 4 is passed through institute by the enterprising gas port
The inner cavity of rotary hearth furnace 2 is stated, the air inlet of the combustor 4 is connected with gas inlet pipe；The lower air inlet of the rotary hearth furnace 2 is connected with
Air is passed through 2 top of rotary hearth furnace by air blower 5, the air blower 5, which is also passed through the combustor 4 by air；
The exhaust outlet of the rotary hearth furnace 2 is connected with exhaust gas processing device；Green pellets is after 2 prereduction of rotary hearth furnace, reduzate warp
Heat insulation transportation equipment 10 is transported to the melting reduction device 3 and carries out melting and reducing；The melting reduction device 3 is equipped with outlet
Mouthful, which is also connected to the exhaust gas processing device.
The exhaust gas processing device includes the cooling device 6, filtering recovering device 7, exhaust fan 8 and the chimney 9 that set gradually,
The exhaust outlet of the rotary hearth furnace 2 is connected with the cooling device 6.The volatile metals such as lead, zinc in material are in the rotary hearth furnace 2
Interior reduction volatilization is aoxidized again in air, is entered in the filtering recovering device 7 with flue gas and is recovered, remaining in material
After volatile metal enters the melting reduction device 3, further volatilize and recycled in the filtering recovering device 7, two steps
Reduction realizes iron and the separation and recycling of other volatile metal elements.
In the present embodiment, the palletizing device 1 is disc balling machine, and the melting reduction device 3 is melting and reducing electric furnace,
The filtering recovering device 7 is bag hose.
Finally it should be noted that foregoing description is only the preferred embodiment of the utility model, the common skill of this field
Art personnel under the premise of without prejudice to the utility model aims and claim, can make under the enlightenment of the utility model
Expression, such transformation are each fallen within the scope of protection of the utility model as multiple types.
Claims (9)
1. a kind of steel waste smelting system based on rotary hearth furnace and melting reduction device, it is characterised in that：Including rotary hearth furnace
(2) and melting reduction device (3) feed inlet, discharge port, air inlet and exhaust outlet, are respectively equipped on the rotary hearth furnace (2), it is described
The discharge port of rotary hearth furnace (2) is connected with the feed inlet of the melting reduction device (3).
2. the steel waste smelting system according to claim 1 based on rotary hearth furnace and melting reduction device, feature
It is：The feed inlet of the rotary hearth furnace (2) is connected with palletizing device (1), and the air inlet of the rotary hearth furnace (2) is connected with combustion-supporting dress
It puts, the exhaust outlet of the rotary hearth furnace (2) is connected with exhaust gas processing device.
3. the steel waste smelting system according to claim 2 based on rotary hearth furnace and melting reduction device, feature
It is：The auxiliary combustion equipment includes combustor (4) and air blower (5), the air inlet of the rotary hearth furnace (2) include enterprising gas port with
Lower air inlet, the hot flame of the combustor (4) enter the rotary hearth furnace (2) by the lower air inlet, the combustor (4)
Air inlet is connected with gas inlet pipe；Air is passed through the rotary hearth furnace (2) by the air blower (5) by the enterprising gas port,
Air is also passed through the combustor (4) by the air blower (5).
4. the steel waste smelting system based on rotary hearth furnace and melting reduction device according to Claims 2 or 3, special
Sign is：The exhaust gas processing device include set gradually cooling device (6), filtering recovering device (7), exhaust fan (8) and
Chimney (9), the exhaust outlet of the rotary hearth furnace (2) are connected with the cooling device (6).
5. the steel waste smelting system according to claim 1 or 2 based on rotary hearth furnace and melting reduction device, special
Sign is：Heat insulation transportation equipment (10), heat preservation fortune are provided between the rotary hearth furnace (2) and the melting reduction device (3)
The material that the discharge port of the rotary hearth furnace (2) is discharged is transported to the feed inlet of the melting reduction device (3) by transfer device (10).
6. the steel waste smelting system according to claim 4 based on rotary hearth furnace and melting reduction device, feature
It is：The feed inlet of the palletizing device (1) is connected with charging gear, and the charging gear includes mixing arrangement (11) and storing
Bucket (12), the discharge port of the storage vat (12) are connected with the feed inlet of the mixing arrangement (11), the mixing arrangement (11)
Discharge port be connected with the feed inlet of the palletizing device (1).
7. the steel waste smelting system according to claim 6 based on rotary hearth furnace and melting reduction device, feature
It is：The storage vat (12) is connected with waste material pretreatment unit, and the waste material pretreatment unit includes storage bin (13), crushes
Device (14) and transmission device (15), the waste material in the storage bin (13) is after the reducing mechanism (14) processing, by institute
Transmission device (15) transport is stated to the storage vat (12).
8. the steel waste smelting system according to claim 4 based on rotary hearth furnace and melting reduction device, feature
It is：The melting reduction device (3) is equipped with gas outlet, which is connected to the cooling device (6).
9. the steel waste smelting system according to claim 4 based on rotary hearth furnace and melting reduction device, feature
It is：The palletizing device (1) is disc balling machine, and the melting reduction device (3) is melting and reducing electric furnace, described to filter back
Receiving apparatus (7) is bag hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721312088.6U CN207498405U (en) | 2017-10-12 | 2017-10-12 | Steel waste smelting system based on rotary hearth furnace and melting reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721312088.6U CN207498405U (en) | 2017-10-12 | 2017-10-12 | Steel waste smelting system based on rotary hearth furnace and melting reduction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207498405U true CN207498405U (en) | 2018-06-15 |
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ID=62500152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721312088.6U Active CN207498405U (en) | 2017-10-12 | 2017-10-12 | Steel waste smelting system based on rotary hearth furnace and melting reduction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207498405U (en) |
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2017
- 2017-10-12 CN CN201721312088.6U patent/CN207498405U/en active Active
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