CN203582884U - System for converting steel residue into renewable resources - Google Patents
System for converting steel residue into renewable resources Download PDFInfo
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- CN203582884U CN203582884U CN201320676270.5U CN201320676270U CN203582884U CN 203582884 U CN203582884 U CN 203582884U CN 201320676270 U CN201320676270 U CN 201320676270U CN 203582884 U CN203582884 U CN 203582884U
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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
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Abstract
The utility model discloses a system for converting steel residue into renewable resources. The system comprises a steel residue pulverization system, a steel residue separating system and a tail residue depth-processing system, wherein the steel residue pulverization system comprises desulfurization slag equipment, converter slag equipment, casting residue slag equipment and granulation self-degradation equipment which is communicated with the desulfurization slag equipment, the converter slag equipment and the casting residue slag equipment respectively; the steel residue separating system is connected with the granulation self-degradation equipment and comprises turnover vibration equipment, a magnetic sorting machine, a crushing machine, a rod mill, screening/magnetic sorting equipment and material replacement equipment which is communicated with the turnover vibration equipment, the magnetic sorting machine, the crushing machine, the rod mill and the screening/magnetic sorting equipment; the tail residue depth-processing system is connected with a fine particle tail slag device, and comprises a drying mechanism, a coarse grinding mechanism, a fine grinding mechanism, a first air sorting mechanism, a second air sorting mechanism, a first magnetic sorting mechanism, a second magnetic sorting mechanism and a steel slag fine powder tank. By the combination of the system structure, design construction for converting the steel slag into the renewable resources with cleanliness, environment friendliness and reduced space occupation is implemented.
Description
Technical field
The present invention relates to technical field of smelting, espespecially a kind of slag is converted into the system of renewable resource.
Background technology
Metallurgical steel slag is the inevitable outcome in steel smelting procedure, according to the difference of each Steel Plant's production level, refines the slag that 1 ton of large appointment of steel produces 130kg, according to this ratio, calculate, the slag amount of China, over 9000 ten thousand tons, as insufficient utilization, will become waste resource.
Slag contains 8～10% steel scrap, if slag does not add processing, this part iron-containing resource will run off in vain, and what answer in contrast is the self-supporting quantity not sufficient 50% of China iron ore, import every year need spend huge sums, if not comprehensive treating process of tailings discharge simultaneously utilization also can cause serious harm to environment, spoiled soil vegetation structure, polluted air and water body.
Summary of the invention
For solving the problems of the technologies described above, main purpose of the present invention is to provide slag that space and recovery and recycling of used resources are taken up an area in a kind of clean, environmental protection, reduction to be converted into system and the method thereof of renewable resource.
For reaching above-mentioned purpose, the technology of the present invention's application is:
A kind of slag is converted into the system of renewable resource, comprise slag efflorescence system, slag steel separation system and tailings deep processing system, wherein this slag efflorescence system comprises that desulfurization slag equipment, converter slag equipment and residual casting slag equipment and the granulation being connected respectively with it explain equipment by oneself; This slag steel separation system is accepted this granulation and is explained equipment by oneself and comprise the material equipment of putting that upset vibration device, magnetic separator, crusher, rod mill and screening/magnetic plant and each mechanism thereof lead to, described in put material equipment and comprise slag steel tank, iron fine powder groove, particulate tailings device, beans steel tank and the slag steel groove that sticks together; This tailings deep processing system is accepted described particulate tailings device, and comprise drying mechanism, corase grind mechanism, fine grinding mechanism and first, second pneumatic separator and first, second magnetic separation mechanism and slag micro powder groove, wherein said drying mechanism, corase grind mechanism, the first pneumatic separator, this first magnetic separation mechanism, this fine grinding mechanism, this second pneumatic separator, the second magnetic separation mechanism and this slag micro mist groove successively order are accepted, and first, second pneumatic separator is also accepted respectively by this fine grinding mechanism simultaneously.
In preferred version, this drying mechanism is accepted described particulate tailings device.
In preferred version; this upset vibration device is accepted described granulation and is explained equipment by oneself, and wherein said upset vibration device has twice discharge port, be respectively slag steel stick together outlet and slag steel exports; the outlet that sticks together of this slag steel is communicated with the described slag steel groove that sticks together, and this slag steel exports is communicated with described magnetic separator.
In preferred version, this magnetic separator comprises that 50mm is to the slag steel exports of the slag steel exports of≤150mm granular size and sieve > 50mm granular size, this 50mm is communicated with slag steel tank to≤150mm slag steel exports, and this > 50mm slag steel exports is communicated with described crusher.
In preferred version, this rod mill is accepted described crusher, and this screening/magnetic plant 25 is accepted described crusher.
In preferred version, the iron fine powder outlet of be respectively equipped with≤10mm of this screening/magnetic plant granular size, the beans steel exports of 10-50mm granular size and≤the particulate tailings outlet of 10mm granular size, wherein the outlet of this iron fine powder is communicated with described iron fine powder groove, this beans steel exports is communicated with described beans steel tank, and this particulate tailings exports and is communicated with described particulate tailings device.
Compared with prior art, its beneficial effect is in the present invention:
1. according to the characteristic of different slags, adopt the treatment process distinguishing, obtain effective utilization of renewable resource;
2. technical process is short, occupation area of equipment is little, its system and method completes in a set of continuous technical process for operations such as the efflorescence of slag, the separation of slag steel, tailings deep processings, the operation such as saved storing up in traditional technology, have bad luck, has reached the good result that place is clean and tidy, space is taken up an area in reduction;
3. slag processing is to carry out under moistening state all the time, has effectively controlled the dust pollution existing in slag processing process, has reached good result clean, environmental protection;
4. adopt this system and method thereof to process slag, its renewable resource utilization rate reaches 100%, the added value of tailings also improves greatly, also have two indexs (active and MFe content) of micro mist good, energy-saving and cost-reducing also helpful for the lifting of cement product quality and alternative grog, thus the good result that waste resource is recycled utilization reached.
Accompanying drawing explanation
Fig. 1 is the frame structure schematic diagram of the overall framework of the embodiment of the present invention.
Fig. 2 is the frame structure schematic diagram being associated in each system in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the present invention's embodiment is done to more detailed description, make to have the knack of this skill person and can implement according to this after studying this specification sheets carefully.
Refer to Fig. 1 also in conjunction with consulting described in Fig. 2, a kind of slag of the present invention is converted into the system of renewable resource, comprises slag efflorescence system 10, slag steel separation system 20 and tailings deep processing system 30, wherein:
This slag efflorescence system 10 is respectively by corresponding desulfurization slag equipment 11, converter slag equipment 12 and residual casting slag equipment 13 by three kinds of slags (as desulfurizing slag of hot metal, converter slag and continuous casting recrement) of smelting generation, and in conjunction with the granulation being connected, explain equipment 14 by oneself and carry out granulation operation, make it these three kinds of slags change into particulate state or powdery;
This slag steel separation system 20 has slag, steel separation function, it comprises the material equipment 26 of putting that upset vibration device (as upset vibratory screening apparatus) 21, magnetic separator 22, crusher 23, rod mill 24 and screening/magnetic plant 25 and each mechanism thereof lead to, described in put material equipment 26 and comprise slag steel tank 261, iron fine powder groove 262, particulate tailings device 263, beans steel tank 264 and the slag steel groove 265 that sticks together.In the present embodiment, this upset vibration device 21 is accepted described granulation and is explained equipment 14 by oneself, its upset vibration device 21 has twice discharge port, be respectively filtration >=150mm granular size slag steel stick together outlet and the slag steel exports of < 150mm granular size, the outlet that sticks together of this slag steel is communicated with the described slag steel groove 265 that sticks together, and this slag steel exports is communicated with described magnetic separator 22; In the present embodiment, this magnetic separator 22 comprises and filters 50mm to the slag steel exports of≤150mm granular size and filter out the slag steel exports of > 50mm granular size, this 50mm is communicated with slag steel tank 261 to≤150mm slag steel exports, and this > 50mm slag steel exports is communicated with described crusher 23; In the present embodiment, this rod mill 24 is accepted described crusher 23, and this screening/magnetic plant 25 is accepted described crusher 23; In the present embodiment, this screening/magnetic plant 25 is respectively equipped with the outlet of iron fine powder, the beans steel exports of filtration 10-50mm granular size and the particulate tailings outlet of filtration≤10mm granular size of filtration≤10mm granular size, wherein: this iron fine powder outlet is communicated with described iron fine powder groove 262, this beans steel exports is communicated with described beans steel tank 264, and this particulate tailings outlet is communicated with described particulate tailings device 263.To sum up this slag steel separation system 20 is accepted particulate state or the powdery slag steel that slag efflorescence system 10 processes, by operations such as fragmentation, screening, rod milling, magnetic separation, the steel scrap in slag and tailings are carried out separated, and
This tailings deep processing system 30 is accepted described particulate tailings device 263, and accept this particulate tailings device 263 defeated come≤10mm particulate tailings.This tailings deep processing system 30 comprises drying mechanism 31, corase grind mechanism 32, fine grinding mechanism 35 and first, second pneumatic separator 33,36, and first, second magnetic separation mechanism 34,37 and slag micro powder groove 38.In the present embodiment, described drying mechanism 31 is accepted described particulate tailings device 263, this corase grind mechanism 32, the first pneumatic separator 33, this first magnetic separation mechanism 34, this fine grinding mechanism 35, this second pneumatic separator 36, the second magnetic separation mechanism 37 and this slag micro mist groove 38 successively order are accepted, and first, second pneumatic separator 33 is also accepted respectively by this fine grinding mechanism 35 simultaneously.
Described in Fig. 2, the step that the method that practical this slag is converted into the system of renewable resource comprises is:
Step 1: carry out slag efflorescence by slag efflorescence system 10.This step is the liquid steel slag of the solid steel slag of red heat, melting to be carried out respectively to granulation explain processing by oneself, makes major part realize efflorescence, and its minute, other operation was:
1. the processing of desulfurizing slag of hot metal.By desulfurization slag equipment 11, in conjunction with granulation, explain the operational procedure that mechanism 14 carries out granulated processed by oneself, with slag-off machine, will in desulfurizing slag of hot metal Ba Jin desulfurization slag mechanism 11, do water filling cooling process, in the present embodiment, described desulfurization slag equipment 11 comprises slag-off machine, described granulation is explained equipment 14 by oneself and is comprised slag ladle, during use, with slag-off machine, desulfurizing slag of hot metal is taken off in slag input tank, slag ladle is transported to the cooling zone of fetching water and is with the tank cooling process of fetching water, after finishing dealing with, be transported to desulfurization slag and turn over slag field and turn over slag;
2. the processing of converter slag.By converter slag equipment 12, in conjunction with granulation, explain the operational procedure that equipment 14 carries out granulated processed by oneself, described converter slag equipment 12 comprises the container that can fill molten steel slag, casting bridge crane and excavator, described granulation is explained equipment 14 by oneself and is comprised slag ladle, during operation, by the stewing processing of slag heat, the stewing process of slag heat is that the slag of melting is winched to slag processing station by casting bridge crane, pour in the stewing hole of heat, start to fetch water cooling until surface solidification, with the loosening slag of excavator, in assurance device, slag surface is without ponding, then carry out deslagging for the second time (repeating last process), after being finished down some tank slags, cover the stewing appliance cover of heat, start atomized water spray, water spray certain hour, stop water spray heat stewing, water spray carries out 14 hours so repeatedly again, open vent valve, remaining vapour in discharge equipment.With bridge crane, appliance cover is moved on support, so that operator slag tap to the slag of having boiled in a covered pot over a slow fire;
3. the processing of residual casting slag.By residual casting slag equipment 13, in conjunction with granulation, explain the operational procedure that equipment 14 carries out granulated processed by oneself, described residual casting slag equipment 13 comprises cement grid mould, during use, adopts grid to process before residual casting slag, then adopts a small amount of water spray naturally cooling to process.With steel slag cement and the prefabricated grid of slag aggregate, after being bolted together, put into slag ladle, grid surface height is positioned at 500mm under slag ladle mouth.When pouring slag into, diagrid works the effect of cutting off, and slag is divided into fritter, turns over tank and is broken into grid grid size after cooling, and its size can enter the design of stove size by slag steel.
Step 2: this slag steel separation system 20 is accepted above-mentioned steps one, by operations such as fragmentations, screening, rod milling, magnetic separation, carries out steel scrap in slag and tailings separated in the slag of efflorescence, and its concrete operations are:
First the slag of efflorescence is unloaded to upset vibratory screening apparatus and sieve, the slag steel that makes it to sieve > 150mm particle sticks together to sift out and turns back to converter slag mechanism 12 and in conjunction with granulation, explain mechanism 14 by oneself and carry out granulated processed, and now≤slag of 150mm enters belt magnetic separator 22, through magnetic separation, attached magnetic > 50mm is selected and by slag steel exports 261, these big or small slag steel is discharged into a slag steel tank (not shown) to the slag steel of≤150mm size, its≤slag of 50mm is through jaw crusher 23, rod mill 24 and screening/magnetic plant 25 carry out crushing and screening, in the present embodiment, described jaw crusher 23, the sequence of rod mill 24 and screening/magnetic plant 25 in no particular order, in its crushing and screening, can be divided into two kinds of screenings of 10mm and 50mm grid size, the slag of≤10mm particle enters two roll machine magnetic separation, and the slag of 10～50mm enters rod mill 24 rod millings, or can carry out again dusting cover screening for the second time, wherein the beans steel of the upper 10～50mm of sieve is discharged into No. two slag steel tanks (not shown) by described beans steel exports 264, under sieve≤slag of 10mm converges with the slag under dusting cover for the first time, enter two roll machine and carry out magnetic separation, select≤10mm iron fine powder and particulate tailings, be somebody's turn to do≤10mm iron fine powder is unloaded to iron fine powder groove (not shown) by iron fine powder outlet 262, unload to No. one simultaneously, slag steel in No. two slag steel tanks and beans steel, the steel scrap that can be used as converter steelmaking is used, the iron fine powder of≤10mm is returned to sintering plant, and particulate tailings directly enters step 3.
Step 3: obtain after above-mentioned steps two is carried out slag iron separating treatment≤10mm particulate of tailings deep processing system 30 tailings particle, its MFe content≤2%, water ratio is about 10%, by endless belt conveyor, transport to transmit and process, as in the present embodiment, the drying mechanism 31 that described tailings deep processing system 30 comprises, corase grind mechanism 32, fine grinding mechanism 35 and first, the second pneumatic separator 33, 36 and first, the second magnetic separation mechanism 34, 37 operation procedure in no particular order, its drying, corase grind, fine grinding, magnetic separation, after the multiple working procedures such as selection by winnowing, iron fine powder after sorting is back to iron fine powder groove (not shown), but the slag micro powder of discharging through the second pneumatic separator 33 is discharged to slag micro powder groove 38, slag micro powder in this slag micro powder groove 38 can directly be supplied with cement mill practicality.
To sum up, be only the present invention's embodiment, the design that all simple and easy modifications of doing according to the present invention's spirit and equivalence change, within should being covered by the following interest field of applying for a patent.
Claims (6)
1. a slag is converted into the system of renewable resource, comprise slag efflorescence system, slag steel separation system and tailings deep processing system, it is characterized in that: this slag efflorescence system comprises that desulfurization slag equipment, converter slag equipment and residual casting slag equipment and the granulation being connected respectively with it explain equipment by oneself; This slag steel separation system is accepted this granulation and is explained equipment by oneself and comprise the material equipment of putting that upset vibration device, magnetic separator, crusher, rod mill and screening/magnetic plant and each mechanism thereof lead to, described in put material equipment and comprise slag steel tank, iron fine powder groove, particulate tailings device, beans steel tank and the slag steel groove that sticks together; This tailings deep processing system is accepted described particulate tailings device, and comprise drying mechanism, corase grind mechanism, fine grinding mechanism and first, second pneumatic separator and first, second magnetic separation mechanism and slag micro powder groove, wherein said drying mechanism, corase grind mechanism, the first pneumatic separator, this first magnetic separation mechanism, this fine grinding mechanism, this second pneumatic separator, the second magnetic separation mechanism and this slag micro mist groove successively order are accepted, and first, second pneumatic separator is also accepted respectively by this fine grinding mechanism simultaneously.
2. slag as claimed in claim 1 is converted into the system of renewable resource, it is characterized in that: this drying mechanism is accepted described particulate tailings device.
3. slag as claimed in claim 1 is converted into the system of renewable resource; it is characterized in that: this upset vibration device is accepted described granulation and explained equipment by oneself; wherein said upset vibration device has twice discharge port; be respectively slag steel stick together outlet and slag steel exports; the outlet that sticks together of this slag steel is communicated with the described slag steel groove that sticks together, and this slag steel exports is communicated with described magnetic separator.
4. slag as claimed in claim 1 is converted into the system of renewable resource, it is characterized in that: this magnetic separator comprises that 50mm is to the slag steel exports of the slag steel exports of≤150mm granular size and sieve > 50mm granular size, this 50mm is communicated with slag steel tank to≤150mm slag steel exports, and this > 50mm slag steel exports is communicated with described crusher.
5. slag as claimed in claim 1 is converted into the system of renewable resource, it is characterized in that: this rod mill is accepted described crusher, and this screening/magnetic plant 25 is accepted described crusher.
6. slag as claimed in claim 1 is converted into the system of renewable resource, it is characterized in that: the beans steel exports of the outlet of the iron fine powder of be respectively equipped with≤10mm of this screening/magnetic plant granular size, 10-50mm granular size and≤the particulate tailings outlet of 10mm granular size, wherein the outlet of this iron fine powder is communicated with described iron fine powder groove, this beans steel exports is communicated with described beans steel tank, and this particulate tailings exports and is communicated with described particulate tailings device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320676270.5U CN203582884U (en) | 2013-10-31 | 2013-10-31 | System for converting steel residue into renewable resources |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320676270.5U CN203582884U (en) | 2013-10-31 | 2013-10-31 | System for converting steel residue into renewable resources |
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| CN203582884U true CN203582884U (en) | 2014-05-07 |
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| CN201320676270.5U Expired - Fee Related CN203582884U (en) | 2013-10-31 | 2013-10-31 | System for converting steel residue into renewable resources |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103555867A (en) * | 2013-10-31 | 2014-02-05 | 中冶南方工程技术有限公司 | System and method for converting steel slag into renewable resources |
| CN104404177A (en) * | 2014-11-13 | 2015-03-11 | 酒钢集团吉瑞再生资源开发有限责任公司 | Stainless steel slag drying and air separation device and drying and air separation method |
| CN104862490A (en) * | 2015-05-28 | 2015-08-26 | 中冶南方工程技术有限公司 | Method and device for recycling stainless steel slags |
-
2013
- 2013-10-31 CN CN201320676270.5U patent/CN203582884U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103555867A (en) * | 2013-10-31 | 2014-02-05 | 中冶南方工程技术有限公司 | System and method for converting steel slag into renewable resources |
| CN103555867B (en) * | 2013-10-31 | 2016-03-02 | 中冶南方工程技术有限公司 | A kind of slag is converted into system and the method thereof of renewable resource |
| CN104404177A (en) * | 2014-11-13 | 2015-03-11 | 酒钢集团吉瑞再生资源开发有限责任公司 | Stainless steel slag drying and air separation device and drying and air separation method |
| CN104404177B (en) * | 2014-11-13 | 2017-03-01 | 酒钢集团吉瑞再生资源开发有限责任公司 | Stainless steel slag drying, pneumatic separation device and its drying, wind selection method |
| CN104862490A (en) * | 2015-05-28 | 2015-08-26 | 中冶南方工程技术有限公司 | Method and device for recycling stainless steel slags |
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