CN210497627U - Steel tailings and ore tailings efficient grading utilization device - Google Patents
Steel tailings and ore tailings efficient grading utilization device Download PDFInfo
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- CN210497627U CN210497627U CN201921471497.XU CN201921471497U CN210497627U CN 210497627 U CN210497627 U CN 210497627U CN 201921471497 U CN201921471497 U CN 201921471497U CN 210497627 U CN210497627 U CN 210497627U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 40
- 239000010959 steel Substances 0.000 title claims abstract description 40
- 239000000843 powder Substances 0.000 claims abstract description 82
- 239000002893 slag Substances 0.000 claims abstract description 54
- 239000000428 dust Substances 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 39
- 238000005303 weighing Methods 0.000 claims abstract description 14
- 238000012216 screening Methods 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 116
- 229910052742 iron Inorganic materials 0.000 claims description 58
- 239000002994 raw material Substances 0.000 claims description 19
- 239000007789 gas Substances 0.000 claims description 15
- 238000009826 distribution Methods 0.000 claims description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 8
- 239000011707 mineral Substances 0.000 claims description 8
- 239000002918 waste heat Substances 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 5
- 239000004576 sand Substances 0.000 abstract description 41
- 238000004519 manufacturing process Methods 0.000 abstract description 22
- 238000000034 method Methods 0.000 abstract description 12
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 30
- 238000003860 storage Methods 0.000 description 7
- 239000004566 building material Substances 0.000 description 5
- 239000004567 concrete Substances 0.000 description 5
- 239000004568 cement Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 235000019580 granularity Nutrition 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- -1 ceramsite Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000010908 plant waste Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
A steel tailings and ore tailings high-efficiency grading utilization device is characterized in that a discharge port of a steady flow weighing bin is connected with a feed port of a high-pressure roller mill, a discharge port of the high-pressure roller mill is connected with a feed port of a primary powder concentrator through a grinding material conveying device, a coarse powder outlet of the primary powder concentrator is connected with a feed port of a screening device, and a screening material outlet of the screening device is connected with a first finished product bin; the fine powder outlet of the primary powder concentrator is connected with the feed inlet of the secondary powder concentrator, the coarse material outlet of the secondary powder concentrator is connected with the second finished product bin, and the discharge outlet of the dust collector is connected with the third finished product bin. The utility model provides a device is utilized in high-efficient grades of steel tailings and ore tailings can utilize slag and ore tailings production coarse sand, middlings and fine sand, and the product line is abundant, and application scope is wide, has avoided the process to coarse sand and middlings repeated grinding in the slag production moreover, has improved production economic benefits and production efficiency.
Description
Technical Field
The utility model relates to a powder making equipment, especially a high-efficient hierarchical utilization device of steel tailings and ore tailings belongs to crushing apparatus technical field.
Background
The steel tailings are a by-product in the steel-making process, and are composed of various oxides formed by oxidizing impurities in pig iron, such as silicon, manganese, phosphorus, sulfur, etc., in the smelting process, and salts generated by the reaction of the oxides with a solvent. The tailings are the tailings waste residues left after the mineral powder is selected by a mineral factory, the waste amount of various mineral tailings in China is large, most of the mineral tailings are discharged in a tailing pond, land is occupied, and the environment and underground water are polluted.
Although the steel slag and the mine tailings have a plurality of potential hazards, the processed steel slag and the mine tailings can be changed into valuable materials and become resources with economic values. The most economic treatment method for the mine tailings is that the mine tailings are used as raw materials of building materials after being made into sand, the treated mine tailings can be used as raw materials of cement, tiles, aerated concrete, permeable bricks, refractory materials, fireproof heat-insulating materials, glass, ceramsite, concrete aggregates and the like, and the mine tailings can also replace part of machine-made sand to be used for manufacturing concrete and building materials such as highway construction, pavement materials and the like. The mine tailings are applied as building materials and need to be reprocessed, and the mine tailings are mainly applied to the building materials as framework materials due to complex components. According to the requirement of GB/T14684-2011 building sand in the national standard, the building sand is divided into coarse sand with the fineness modulus of 3.7-3.1, medium sand with the fineness modulus of 3.0-2.3 and fine sand with the fineness modulus of 2.2-1.6, so that the tailing slag recycling process needs to grind and carry out granularity grading to generate coarse sand, medium sand and fine sand to be applied to different occasions.
The steel slag can be used as a building material and can also be used as a conventional concrete admixture, and the national technical standards for applying the steel slag to the building and concrete admixture are stipulated in the national standards of' GBT-32546-. And according to the application technical requirement of the national standard' GBT-32546-. However, in practical application, the utilization of the steel slag is generally concentrated on the application in the cement clinker industry, so that the conventional steel slag powder production method adopts a hot splashing method for treatment, and then crushing, screening and magnetic separation are carried out to prepare powder, the method needs to carry out powder selection for many times, the final product is steel slag micro powder, the fineness modulus of the steel slag micro powder is 2.2-1.6, the steel slag micro powder belongs to the fine sand standard required by the national standard, and the steel slag micro powder is mainly applied to a cement raw material as an admixture. The process needs to make the steel slag into fine sand through multiple powder selection, a large amount of medium sand and coarse sand separated by each grade of powder selector in the production process need to be fed back to the roller mill to be ground again and then enter the separation process, the coarse sand and the medium sand generated in the process are not fully utilized, the produced product is single, a large amount of energy is consumed in the process of refluxing the roller mill by the medium sand and the coarse sand, the equipment loss is increased, and the waste of energy and equipment maintenance fund is caused.
Disclosure of Invention
The utility model aims to provide a: the steel tailings and ore tailings efficient grading utilization device can utilize steel slag and ore tailings to produce coarse sand, medium sand and fine sand, is rich in product lines and wide in application range, avoids the process of repeatedly grinding the coarse sand and the medium sand in steel slag production, is energy-saving and environment-friendly in production process, reduces equipment abrasion, and improves production economic benefits and production efficiency.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a high-efficiency grading utilization device for steel tailings and ore tailings comprises a storage bin, a steady flow weighing bin, a high-pressure roller mill, a primary powder concentrator, a first finished product storage bin, a secondary powder concentrator, a second finished product storage bin, a dust collector and a third finished product storage bin, wherein a discharge port of the storage bin is connected with a feed port of the steady flow weighing bin through a raw material conveying device; a fine powder outlet of the primary powder concentrator is communicated with a feed inlet of the secondary powder concentrator, a coarse material outlet of the secondary powder concentrator is connected with the second finished product bin, a fine material outlet of the secondary powder concentrator is connected with a feed inlet of a dust collector, and a discharge outlet of the dust collector is connected with the third finished product bin; further, a first iron remover is arranged between a coarse powder outlet of the primary powder concentrator and a feed inlet of the screening device, a second iron remover is arranged between a coarse material outlet of the secondary powder concentrator and a second finished product bin, a third iron remover is arranged between the raw material conveying device and the steady flow weighing bin, an iron outlet of the first iron remover is connected with the first iron slag bin, an iron outlet of the second iron remover is connected with the second iron slag bin, an iron outlet of the third iron remover is connected with the third iron slag bin, and discharge ports of the first iron slag bin, the second iron slag bin and the third iron slag bin are connected with the iron slag raw material bin; further, the primary powder concentrator is a V-shaped powder concentrator, the secondary powder concentrator is a dynamic powder concentrator, an air inlet of the V-shaped powder concentrator is provided with a hot blast stove, the air inlet of the hot blast stove is connected with a steel mill waste heat recovery boiler, the dust collector is a cyclone dust collector, a dust-containing gas inlet, a discharge port and a tail gas outlet are formed in the cyclone dust collector, the discharge port of the cyclone dust collector is connected with a third finished product bin, and the tail gas outlet of the cyclone dust collector is connected with the air inlet of the hot blast stove through a dust collector and a main exhaust fan; further, the raw material conveying device and the grinding material conveying device are one or more of a belt conveyor, a bucket elevator or a pneumatic conveyor for combined use, the screening device is a vibrating screen, and the diameter of a screen hole of the vibrating screen is between 2.36 and 4 mm; further, the dust remover is a bag-type dust remover, an air inlet of the bag-type dust remover is connected with a tail gas outlet of the cyclone dust collector, and a purified gas outlet of the bag-type dust remover is connected with an inlet of the hot blast stove through a main exhaust fan; a tee-joint material distribution funnel is arranged between the discharge port of the second iron remover and the second finished product material bin, a first discharge port of the tee-joint material distribution funnel is connected with the second finished product material bin, and a second discharge port of the tee-joint material distribution funnel is connected with a feed port of the steady flow weighing bin.
The utility model discloses an actively beneficial technological effect lies in: the utility model can produce three products with different granularities, namely coarse sand, medium sand and fine sand of steel slag and mine tailings by using one production line, and can meet the requirements of different users; when the steel slag powder grinding device is used as a steel slag production line, the defect that only fine powder is produced by conventional steel slag powder grinding equipment is overcome, and the product I is divided into three parts, namely coarse powder, medium coarse powder and fine powder, so that different user requirements can be met. The utility model discloses it is simple and easy convenient when switching ore tailing product and slag product, and the production line configuration is simple, low cost moreover, can increase substantially production line output, and its process flow is reasonable, and the product line is abundant, avoids the overlapping investment, can practice thrift a large amount of energy and equipment maintenance expense.
Drawings
Fig. 1 is a schematic process flow diagram of an embodiment of the present invention.
Detailed Description
In order to explain the utility model more fully, the following embodiment examples of the present invention are provided, which are only for the explanation of the present invention and do not limit the scope of the present invention.
The invention is explained in further detail with reference to the drawings, in which: 1. a storage bin; 2. a raw material conveying belt; 3. a steady flow weighing bin; 4. a high pressure roller mill; 5. a grinding material bucket elevator; 6. a V-shaped powder concentrator; 7. a bag-type dust collector; 8. a first iron remover; 9. a first finished product bin; 10. a first iron slag bin; 11. vibrating screen; 12. a three-way material separating funnel; 13. a second finished product bin; 14. a second iron slag bin; 15. a dynamic powder concentrator; 16. a second iron remover; 17. a main exhaust fan; 18. a hot blast stove; 19. a steel mill waste heat recovery boiler; 20. a chimney; 21. a raw iron slag bin; 22. a third finished product bin; 23. a cyclone dust collector; 24. a third iron remover; 25. and a third slag bin.
As shown in the figure: a device for efficiently grading and utilizing steel tailings and ore tailings comprises a stock bin 1, a steady flow weighing bin 3, a high-pressure roller mill 4, a dynamic powder concentrator 6, a first finished product bin 9, a dynamic powder concentrator 15, a second finished product bin 13, a cyclone dust collector 23, a bag-type dust collector 7 and a third finished product bin 22, wherein a discharge hole of the stock bin is conveyed to a third iron remover 24 through a raw material conveying belt 2 for iron removal treatment, a discharge hole of the third iron remover is connected with a feed hole of the steady flow weighing bin, an iron outlet of the third iron remover is connected with a third iron slag bin 25, the third iron slag bin is connected with an iron slag raw material bin 21, a discharge hole of the steady flow weighing bin is connected with a feed hole of the high-pressure roller mill 4, a discharge hole of the high-pressure roller mill is connected with a feed hole of a V-type powder concentrator through a grinding material bucket elevator 5, a coarse powder outlet of the V-type powder concentrator is connected with a feed hole of a vibrating screen 11, the sieve pore diameter of the sieving device in the utility model can be selected between 2.36 mm and 4mm, which can ensure that the particle diameter of the product A in the first storage bin is less than 4.75mm required by national standard when the steel slag and the mine tailings are produced; the particle size of coarse materials of oversize materials of the vibrating screen is out of the range required by national standards, so that a coarse material outlet of the vibrating screen is connected with a feed inlet of the high-pressure roller mill to regrind the coarse materials, and a screen blanking outlet of the vibrating screen is connected with the first finished product bin; the fine powder outlet of the V-shaped powder concentrator is connected with the feed inlet of the dynamic powder concentrator, the air inlet of the V-shaped powder concentrator is connected with a hot-blast stove 18, the air inlet of the hot-blast stove is connected with a steel plant waste heat recovery boiler 19 and a purified gas outlet of a cyclone dust collector, the waste heat of a steel plant and the waste heat of products can be utilized to preheat the inlet air, heating energy is saved, the coarse material outlet of the dynamic powder concentrator is connected with a second finished material bin 13 through a second iron remover 16 and a three-way distribution hopper 12, the iron outlet of the second iron remover is connected with a second iron slag bin 14, the first iron slag bin and the second iron slag bin are both connected with an iron slag raw material bin 21, iron slag in the iron slag raw material bin can be recycled as a steelmaking powder raw material, the fine material outlet of the V-shaped powder concentrator is connected with the feed inlet of the cyclone dust collector 23, the discharge port of the cyclone dust collector is connected with a third finished material bin 22, the tail gas outlet, the purified gas outlet of the bag-type dust collector is connected with the air inlet of the hot blast stove through a main exhaust fan for waste heat recovery, and the redundant gas is discharged through a chimney 20.
The utility model discloses the during operation, the production line carries out the switching production of slag or ore tailings according to market needs, carry out the raw materials switching as required during production, slag or ore tailings raw materials get into the stationary flow by the feed bin and weigh the storehouse and weigh the back and get into the grinding of high pressure roller mill and grind, the coarse fodder that the abrasive material was come out through V type selection powder machine gets through deironing and sieves the back, the coarse sand that obtains oversize modulus and is 3.7-3.1 sends into first finished product feed bin, here can adjust the sieve mesh diameter according to actual need in order to obtain the coarse sand of different fineness moduli, the oversize thing that does not accord with the standard flows back to high pressure roller mill and grinds; fine powder of the V-shaped powder concentrator is subjected to secondary powder concentration by the dynamic powder concentrator, discharged materials at a coarse material port of the dynamic powder concentrator are subjected to iron removal again to obtain medium sand, the medium sand is respectively led to the high-pressure roller mill and a second finished product bin by a three-way distribution funnel, and the material passing amounts of two discharge ports of the three-way distribution funnel can be adjusted according to market requirements to adjust the product yield ratio of the fine sand and the medium sand; and fine powder of the V-shaped powder concentrator is collected by a cyclone dust collector to obtain fine sand, the fine sand is sent into a third finished product bin, and purified gas of the cyclone dust collector is purified by a bag-type dust collector and then enters a hot blast stove for waste heat utilization.
The utility model discloses can obtain the slag powder or the slag powder of three kinds of different particle diameters of coarse sand, middlings and fine sand, the production proportion of middlings and fine sand is adjustable to coarse sand and middlings all do not need the backward flow to grind again in the slag production, and the mode of production is nimble, and the product line is abundant, can satisfy different users' needs, and the hot-blast furnace adopts the waste heat supply, and it is little to have the production energy consumption, and the advantage that equipment wear is low.
After the embodiments of the present invention have been described in detail, those skilled in the art can clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above claims, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention all fall within the scope of the technical solution of the present invention, and the present invention is not limited to the embodiments of the examples given in the specification.
Claims (5)
1. The utility model provides a device is utilized in high-efficient grades of steel tailings and ore tailings, its characterized in that: the steel tailings and ore tailings efficient grading utilization device comprises a steel tailings bin, a steady flow weighing bin, a high-pressure roller mill, a primary powder concentrator, a first finished product bin, a secondary powder concentrator, a second finished product bin, a dust collector and a third finished product bin, wherein a discharge hole of the steel tailings bin is connected with a feed hole of the steady flow weighing bin through a raw material conveying device, a discharge hole of the steady flow weighing bin is connected with a feed hole of the high-pressure roller mill, a discharge hole of the high-pressure roller mill is connected with a feed hole of the primary powder concentrator through a grinding material conveying device, a coarse powder outlet of the primary powder concentrator is connected with a feed hole of a screening device, an oversize material outlet of the screening device is connected with a feed hole of the high-pressure roller mill, and an undersize material outlet of the screening device is connected with; the fine powder outlet of the primary powder concentrator is connected with the feed inlet of the secondary powder concentrator, the coarse material outlet of the secondary powder concentrator is connected with the second finished product bin, the fine material outlet of the secondary powder concentrator is connected with the feed inlet of the dust collector, and the discharge outlet of the dust collector is connected with the third finished product bin.
2. The device for efficiently grading and utilizing the steel tailings and the mineral tailings according to claim 1 is characterized in that: the iron-removing machine is characterized in that a first iron remover is arranged between a coarse powder outlet of the primary powder concentrator and a feed inlet of the screening device, a second iron remover is arranged between a coarse powder outlet of the secondary powder concentrator and a second finished product bin, a third iron remover is arranged between the raw material conveying device and the steady flow weighing bin, an iron outlet of the first iron remover is connected with the first iron slag bin, an iron outlet of the second iron remover is connected with the second iron slag bin, an iron outlet of the third iron remover is connected with the third iron slag bin, and discharge ports of the first iron slag bin, the second iron slag bin and the third iron slag bin are connected with an iron slag raw material bin.
3. The device for efficiently grading and utilizing the steel tailings and the mineral tailings according to claim 1 is characterized in that: the primary powder concentrator is a V-shaped powder concentrator, the secondary powder concentrator is a dynamic powder concentrator, an air inlet of the V-shaped powder concentrator is provided with a hot blast stove, the air inlet of the hot blast stove is connected with a steel mill waste heat recovery boiler, the dust collector is a cyclone dust collector, a dust-containing gas inlet, a discharge port and a tail gas outlet are formed in the cyclone dust collector, the discharge port of the cyclone dust collector is connected with a third finished product bin, and the tail gas outlet of the cyclone dust collector is connected with the air inlet of the hot blast stove through a dust collector and a main exhaust fan.
4. The device for efficiently grading and utilizing the steel tailings and the mineral tailings according to claim 1 is characterized in that: the raw material conveying device and the abrasive conveying device are one or more of a belt conveyor, a bucket elevator or a pneumatic conveyor, the screening device is a vibrating screen, and the diameter of a screen hole of the vibrating screen is between 2.36 and 4 mm.
5. The device for efficiently grading and utilizing the steel tailings and the mineral tailings according to claim 3, is characterized in that: the dust remover is a bag-type dust remover, an air inlet of the bag-type dust remover is connected with a tail gas outlet of the cyclone dust collector, and a purified gas outlet of the bag-type dust remover is connected with an inlet of the hot blast stove through a main exhaust fan; a tee-joint material distribution funnel is arranged between the discharge port of the second iron remover and the second finished product material bin, a first discharge port of the tee-joint material distribution funnel is connected with the second finished product material bin, and a second discharge port of the tee-joint material distribution funnel is connected with a feed port of the steady flow weighing bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921471497.XU CN210497627U (en) | 2019-09-05 | 2019-09-05 | Steel tailings and ore tailings efficient grading utilization device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921471497.XU CN210497627U (en) | 2019-09-05 | 2019-09-05 | Steel tailings and ore tailings efficient grading utilization device |
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| CN210497627U true CN210497627U (en) | 2020-05-12 |
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| CN201921471497.XU Expired - Fee Related CN210497627U (en) | 2019-09-05 | 2019-09-05 | Steel tailings and ore tailings efficient grading utilization device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113499843A (en) * | 2021-07-27 | 2021-10-15 | 信诺科技(天津)有限公司 | Cement finish grinding system based on roller press |
| CN113754333A (en) * | 2021-10-15 | 2021-12-07 | 江西科技学院 | Process for preparing composite admixture based on low-quality mineral waste residues |
| CN113929332A (en) * | 2021-10-20 | 2022-01-14 | 江西科技学院 | Device for preparing mineral admixture by using mineral waste residues and production process |
| CN116116537A (en) * | 2022-12-29 | 2023-05-16 | 郑州沃特节能科技股份有限公司 | Semi-final grinding three-closed-circuit production process system of steel slag micro powder roller press |
-
2019
- 2019-09-05 CN CN201921471497.XU patent/CN210497627U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113499843A (en) * | 2021-07-27 | 2021-10-15 | 信诺科技(天津)有限公司 | Cement finish grinding system based on roller press |
| CN113754333A (en) * | 2021-10-15 | 2021-12-07 | 江西科技学院 | Process for preparing composite admixture based on low-quality mineral waste residues |
| CN113754333B (en) * | 2021-10-15 | 2022-04-29 | 江西科技学院 | Process for preparing composite admixture based on low-quality mineral waste residues |
| CN113929332A (en) * | 2021-10-20 | 2022-01-14 | 江西科技学院 | Device for preparing mineral admixture by using mineral waste residues and production process |
| CN113929332B (en) * | 2021-10-20 | 2022-06-07 | 江西科技学院 | Device for preparing mineral admixture by using mineral waste residues and production process |
| CN116116537A (en) * | 2022-12-29 | 2023-05-16 | 郑州沃特节能科技股份有限公司 | Semi-final grinding three-closed-circuit production process system of steel slag micro powder roller press |
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