CN101642732B - Mineral flotation column - Google Patents
Mineral flotation column Download PDFInfo
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- CN101642732B CN101642732B CN200910089189A CN200910089189A CN101642732B CN 101642732 B CN101642732 B CN 101642732B CN 200910089189 A CN200910089189 A CN 200910089189A CN 200910089189 A CN200910089189 A CN 200910089189A CN 101642732 B CN101642732 B CN 101642732B
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- 238000005188 flotation Methods 0.000 title claims abstract description 77
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 38
- 239000011707 mineral Substances 0.000 title claims abstract description 38
- 239000006260 foam Substances 0.000 claims description 11
- 210000005056 cell body Anatomy 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 16
- 238000011084 recovery Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 8
- 238000000926 separation method Methods 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000011362 coarse particle Substances 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000005484 gravity Effects 0.000 abstract 1
- 230000003993 interaction Effects 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 238000004065 wastewater treatment Methods 0.000 abstract 1
- -1 wastewater treatment Substances 0.000 abstract 1
- 239000003814 drug Substances 0.000 description 11
- 239000008187 granular material Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 239000007787 solid Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 230000001804 emulsifying effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 230000002925 chemical effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
A mineral flotation column, in particular to a columnar flotation device for separating minerals in a liquid medium. It is characterized in that the structure comprises: the device comprises a flotation column body, an ultrasonic generating device mounting seat fixedly connected to the side wall of the flotation column body and provided with a circular through hole, and an ultrasonic generating device mounted on the ultrasonic generating device mounting seat. The invention utilizes the unique advantages of the existing flotation column, introduces the ultrasonic technology into the flotation column equipment, leads the materials passing through the flotation column to be subjected to hydrodynamic force, gravity, surface chemical force, interparticle interaction force, cavitation generated by ultrasonic energy and ultrasonic direct current effect, can strengthen the separation process of the materials, enlarge the size fraction range of the materials selected by the flotation column, promote the recovery of coarse particle materials, improve the separation precision, improve the recovery rate of operation and reduce the cost of separation operation. The flotation column can be used in various separation fields of separation between minerals, wastewater treatment, petroleum, chemical industry, environmental protection and the like.
Description
Technical field
A kind of mineral floatation column, particularly a kind of columnar floatation device of in liquid medium, carrying out sorting mineral.
Background technology
COLUMN TECHNOLOGY is the efficient FLOTATION SEPARATION equipment that last century, the fifties grew up, and its advantage is: a flotation column can replace the multistage operation of many flotation devices, and whole flotation process is oversimplified; The ore pulp fluidised form is steady relatively, and foam bed thickness, selectivity height can not have moving component in the cylinder; Energy consumption is low; Floor space is few, and is easy to operate, and maintenance cost is low.Flotation column such as preamble are said to have a lot of advantages, but the limitation of himself is also arranged:
(1) mineral dissociate insufficiently, can not bring into play the superiority that it is upgrade; Coarse granule is shorter than ore pulp time of staying in post, cause coarse granule be difficult to suspension, bubble and particle contact probability little, lose the rate of recovery for reaching to upgrade; Use is confined to selected operation, and result of use is not ideal enough in roughly selecting operation, and the size range of separation scope of flotation column is narrow;
(2) chemical property of ore pulp is bigger to flotation effect influence, and what the ore pulp that viscosity is big can cause extreme difference takes off the tail foam, makes long-time the stop wherein of fine-grained gangue and worsens floatation process;
(3) flotation column is owing to no agitating device, and the useful fine particle stage material of carrying secretly in the sludge is mineralising fully, and is taken away by mine tailing, reduces the rate of recovery of flotation column.
Summary of the invention
The object of the invention is exactly the deficiency that exists to above-mentioned prior art, provide a kind of result of use, fine-particle minerals particle that sludge is carried secretly that can the efficient hardening medicament cleaning action, optimize the mineralising condition, prevent that mine tailing from carrying secretly and run away, strengthen the inner stirring action of ore pulp, promote dissolved air in the ore pulp to separate out, improve the mineral floatation column of the overall rate of recovery of flotation column on coarse granule and subparticle surface.
The objective of the invention is to realize through following technical scheme.
A kind of mineral floatation column is characterized in that its structure comprises:
Flotation column cylinder-this cylinder is the tubular cylinder of steel, on column side wall, has manhole and vertically disposed transparent bar-type observation window;
This advances pipe Duan Weiyi and the flotation column cylinder is isometrical, flange is connected in flotation column cylinder upper end pipe joint barrel mast to advance pipe section one, is advancing to be provided with level on the pipe section sidewall and to advance pipe;
Foam tank-this foam tank is the uncovered cavity cell body in upper end, and the cell body lower bottom part has and advances the through hole that pipe section upper end is fixedly connected, and has the foam discharge pipe in the cell body lower sidewall;
Air-chamber pipeline section-this air-chamber pipeline section be one with the flotation column cylinder is isometrical, flange is connected in flotation column cylinder lower end pipe joint barrel mast, on air-chamber pipeline section sidewall, be provided with and the joining steam inlet pipe of bubble generator;
Mine tailing discharge pipe-this mine tailing discharge pipe is infundibulate, and end flanges cooperates connection under its top and the air-chamber pipeline section;
Ultrasonic generator mount pad-this mount pad is one to be fixed in the pipe joint shape seat that has on the flotation column column side wall on the manhole, on the port of base, has outward flange;
The structure of ultrasonic generator-this device has comprised sound wave oscillator, the coaxial control line fairlead that is coated on the outer cylindrical shell of ultrasonic oscillator, is arranged at the housing afterbody; This ultrasonic generator stretches in the ultrasonic generator mount pad, and ultrasonic wave output cylinder is positioned at and has the manhole place on the column side wall; Through being positioned at the wedge-like shape annular seal cushion rubber that is coated between ultrasonic oscillator housing cylinder and ultrasonic generator mount pad pore, seize on both sides by the arms fixing by the flange ring plate that cooperates with ultrasonic generator mount pad outward flange.
The present invention is a kind of mineral floatation column, it is characterized in that the pipe joint barrel mast of described flotation column cylinder is divided into three sections, and flange connects each other.
The present invention is a kind of mineral floatation column, it is characterized in that the ultrasonic generator that every section pipe joint barrel mast of described flotation column cylinder is provided with evenly distributes along the floor projection direction.
The present invention is a kind of mineral floatation column, it is characterized in that the ultrasonic generator that every section pipe joint barrel mast of described flotation column cylinder is provided with evenly is distributed as four groups along the floor projection direction, and every group contains two ultrasonic generators that vertical direction is provided with.
The present invention is a kind of mineral floatation column; Make full use of the unique advantage that is had on the existing flotation column equipment performance, ultrasonic technology is introduced flotation column equipment, the shape of ultrasonic wave medium flotation column can be square or cylindrical; 6～12 meters of height, the diameter of flotation column is not limit.Along three ultrasonic sources of flotation column cylinder distribution, ultrasound source is connected with the cylinder flange seal; Three ultrasonic sources adopt AC power, and hyperacoustic intensity can be regulated according to different ore character with frequency; The bubble generator of flotation column adopts air toroidal swirl type bubble generator, arranges in the flotation column bottom.
Ultrasonic wave is a kind of mechanical vibrational energy of propagating through all material media that comprise solid, liquids and gases, and during dilatational wave week, the negative pressure that is produced by high-energy ultrasound is enough to overcome the intermolecular power of constraint liquid, and causes the formation of microvesicle.In the compressional wave cycle subsequently, almost instantaneous relase goes out a kind of very big local energy pulse.Strong sound field can change a kind of state of material, causes chemical reaction and peptizaiton.Its chemical effect has the cavitation characteristics, and is attended by the rising of local pressure and temperature.Can produce very high inertia and elastic force in the part.
Ultrasonic applications is that it can remove surface coating in a significant benefit of ore dressing, and this mainly is to realize through the big and local strength that is produced by cavitation.Help to clean the surface that is suspended in the mineral in the ore pulp by the energy that cavitation discharged.And its more complicated effect is the surface chemical property that can change mineral, thereby regulates its reaction to other materials or physical separation method in the solution.Cavitation also can change the chemical composition (through forming peroxide) of some medicament and water itself.On the other hand, when ultrasonic applications during, will play peptizaiton in the ore pulp of the stabilizing agent that contains surfactant and so on; And this can cause the formation of emulsion, improves the effect of medicament, and medicament is distributed in the suspension more equably, improves the activity of used chemicals.
The present invention is a kind of mineral floatation column, and during actual the use, the shape of ultrasonic wave medium flotation column can be square or cylindrical, 6～12 meters of height, and the barrel dliameter of flotation column is not limit.In the scope of advancing the downward 0.5-1m of pipe mouth, the ultrasonic generator of setting is positioned at the top in collecting district, evenly arranges along the flotation column cross section.To feeding Dispersion of Solid Particles effect in the ore pulp in the flotation column, thereby help aggregate broken, remove impurity layer (cleaning or desliming), reduce the entrainment loss of particulate from the surface of solids.
Ultrasonic generator is evenly arranged along the flotation column cross section in middle part in flotation column collecting district, to the improvement effect of the surface chemical property of mineral, and promotes reagent emulsifying, thereby has increased the service efficiency of medicament, reduces dosing; To the analytic function of active oxygen in the ore pulp, make ore pulp be created in coarse granule and active bubble is directly separated out on the subparticle surface, directly it is selected, avoid the defective of inertial collision.
Be arranged in flotation column bubble generator top, apart from the 0.3m-0.5m of bubble generator; The supersonic generator of evenly arranging along the flotation column cross section, cavitation effect of ultrasonic waves promote the bubble that bubble generator ejects in short distance, in the flotation column cross section, to be evenly distributed.Can slow down the equally ascent rate of bubble of ultrasonic action prolongs the residence time of bubble in flotation column, is the abundant mineralisings of mineral.Compare with common flotation column; Can reduce the height of flotation column, can strengthen sorting of the valuable mineral particle that is about to discharge flotation column, make the mine tailing ore pulp be created in coarse granule and active bubble is directly separated out on the subparticle surface; With its sort out, guarantee the overall rate of recovery once more.
The present invention is a kind of mineral floatation column, has realized that commercial scale is the ultrasonic medium COLUMN TECHNOLOGY of medium with the ultrasonic wave, promptly realizes the emulsification peptizaiton of ultrasonic technology to medicament, strengthens the result of use of medicament; The cleaning action of the fine-particle minerals particle that sludge is carried secretly provides the optimal conditions of its mineralising, prevents that mine tailing from carrying secretly to run away; Utilize cavitation effect of ultrasonic waves, the inner stirring action of strong ore pulp promotes that dissolved air is separated out at coarse granule and subparticle in the ore pulp, improves the overall rate of recovery of flotation column.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a flotation column column structure sketch map of the present invention.
Fig. 3 is that the A of Fig. 2 is to vertical view.
Fig. 4 is the B portion cutaway view of Fig. 2.
Fig. 5 is the structural representation of ultrasonic generator.
The specific embodiment
A kind of mineral floatation column, its structure comprises:
This cylinder of flotation column cylinder 1-is the tubular cylinder of steel, on column side wall, has manhole and vertically disposed transparent bar-type observation window;
The pipe joint barrel mast that advance that pipe section 2-should advance pipe Duan Weiyi and the flotation column cylinder is isometrical, flange is connected in flotation column cylinder upper end is advancing to be provided with level on the pipe section sidewall and to advance pipe 3;
This foam tank of foam tank 4-is the uncovered cavity cell body in upper end, and the cell body lower bottom part has and advances the through hole that pipe section upper end is fixedly connected, and has foam discharge pipe 5 in the cell body lower sidewall;
This mount pad of ultrasonic generator mount pad 6-is one to be fixed in the pipe joint shape seat that has on the flotation column column side wall on the manhole, on the port of base, has outward flange;
The structure of this device of ultrasonic generator 7-comprises ultrasonic oscillator 18, coaxial control line 8 fairleads 9 that are coated on the outer cylindrical shell 19 of ultrasonic oscillator, are arranged at the housing afterbody; This ultrasonic generator stretches in the ultrasonic generator mount pad, and ultrasonic wave output cylinder is positioned at and has the manhole place on the column side wall; Through being positioned at the wedge-like shape annular seal cushion rubber 10 that is coated between ultrasonic oscillator housing cylinder and ultrasonic generator mount pad pore, seize on both sides by the arms fixing by the flange ring plate 11 that cooperates with ultrasonic generator mount pad outward flange;
This air-chamber pipeline section of air-chamber pipeline section 12-be one with the flotation column cylinder is isometrical, flange is connected in flotation column cylinder lower end pipe joint barrel mast, on air-chamber pipeline section sidewall, be provided with and bubble generator 13 joining air inlet pipe 14;
This mine tailing discharge pipe of mine tailing discharge pipe 15-is infundibulate, and end flanges cooperates connection under its top and the air-chamber pipeline section.
16 is the lower carriage of mineral floatation column among Fig. 1, and 17 is upper holder.
The present invention is a kind of mineral floatation column, and the pipe joint barrel mast of described flotation column cylinder is divided into three sections, and flange connects each other.
The present invention is a kind of mineral floatation column, and the ultrasonic generator that every section pipe joint barrel mast of described flotation column cylinder is provided with evenly distributes along the floor projection direction.
The present invention is a kind of mineral floatation column, and the ultrasonic generator that every section pipe joint barrel mast of described flotation column cylinder is provided with evenly is distributed as four groups along the floor projection direction, and every group contains two ultrasonic generators that vertical direction is provided with.
During operation, ore pulp feeds flotation column from mineral-feeding pipe, and the top ultrasonic generator is the 0.5-1.0m place below mineral-feeding pipe, utilizes hyperacoustic performance to disperse to feed solid particle in the interior ore pulp of flotation column, helps aggregate broken; And through hyperacoustic stirring and vibration effect, the mineral grain surface is cleaned, remove the thin mud on mineral subparticle surface, reduce the entrainment loss of particulate; The spiral effect of ultrasonic direct flow can make ore pulp mixed more fully; Medicament in the ore pulp is carried out primary emulsification, shorten the time that medicament is had an effect.
Through the ore pulp and the medicament of the ultrasonic wave effect of top ultrasonic generator, mineralization strengthens, and part is sticked with bubble, gets into froth bed as concentrate.Remainder is continued to move down along flotation column by the mineral grain of mineralising; Further effect takes place to it in the ultrasonic generator of installing at collecting district middle part: further to the improvement effect of the surface chemical property of mineral; Further promote reagent emulsifying; Increase the service efficiency of medicament, reduce dosing; To the analytic function of active oxygen in the ore pulp, make ore pulp be created in coarse granule and active bubble is directly separated out on the subparticle surface, directly it is selected, avoid the defective of inertial collision; Increased for the second time the rate of recovery of flotation column.
Be arranged in the ultrasonic generator of flotation column bottom, apart from bubble generator apart from 0.3m-0.5m.Cavitation effect of ultrasonic waves promotes bubble generator, and (bubble that ejects is evenly distributed in the flotation column cross section in short distance.Increased the collision probability of bubble and mineral grain, strengthened sorting of the valuable mineral particle be about to discharge flotation column, made the mine tailing ore pulp be created in coarse granule and active bubble is directly separated out on the subparticle surface,, guaranteed the overall rate of recovery once more with its sort out.
Claims (4)
1. mineral floatation column is characterized in that its structure comprises:
Flotation column cylinder-this cylinder is the tubular cylinder of steel, on column side wall, has manhole and vertically disposed transparent bar-type observation window;
The pipe joint barrel mast that advance that the pipe section-this advances pipe Duan Weiyi and the flotation column cylinder is isometrical, flange is connected in flotation column cylinder upper end is advancing to be provided with level on the pipe section sidewall and to advance pipe;
Foam tank-this foam tank is the uncovered cavity cell body in upper end, and the cell body lower bottom part has and advances the through hole that pipe section upper end is fixedly connected, and has the foam discharge pipe in the cell body lower sidewall;
Air-chamber pipeline section-this air-chamber pipeline section be one with the flotation column cylinder is isometrical, flange is connected in flotation column cylinder lower end pipe joint barrel mast, on air-chamber pipeline section sidewall, be provided with and the joining air inlet pipe of bubble generator;
Mine tailing discharge pipe-this mine tailing discharge pipe is infundibulate, and end flanges cooperates connection under its top and the air-chamber pipeline section;
Ultrasonic generator mount pad-this mount pad is one to be fixed in the pipe joint shape seat on the manhole that has on the flotation column column side wall, on the port of pipe joint shape seat, has outward flange;
The structure of ultrasonic generator-this device comprises ultrasonic oscillator, the coaxial control line fairlead that is coated on the outer cylindrical shell of ultrasonic oscillator, is arranged at the housing afterbody; This ultrasonic generator stretches in the ultrasonic generator mount pad, and ultrasonic generator output cylinder is positioned at the manhole place that has on the flotation column column side wall; Be coated on outer cylindrical housings cylinder of ultrasonic oscillator and the wedge-like shape annular seal cushion rubber between ultrasonic generator mount pad pore through being positioned at, seize on both sides by the arms fixing by the flange ring plate that cooperates with ultrasonic generator mount pad outward flange.
2. a kind of mineral floatation column according to claim 1 is characterized in that the pipe joint barrel mast of described flotation column cylinder is divided into three sections, and flange connects each other.
3. a kind of mineral floatation column according to claim 2 is characterized in that the ultrasonic generator that every section pipe joint barrel mast of described flotation column cylinder is provided with evenly distributes along the floor projection direction.
4. a kind of mineral floatation column according to claim 2; It is characterized in that the ultrasonic generator that every section pipe joint barrel mast of described flotation column cylinder is provided with evenly is distributed as four groups along the floor projection direction, every group contains two ultrasonic generators that vertical direction is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910089189A CN101642732B (en) | 2009-08-06 | 2009-08-06 | Mineral flotation column |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910089189A CN101642732B (en) | 2009-08-06 | 2009-08-06 | Mineral flotation column |
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| CN101642732A CN101642732A (en) | 2010-02-10 |
| CN101642732B true CN101642732B (en) | 2012-10-10 |
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| US8540798B2 (en) * | 2011-01-04 | 2013-09-24 | Guilherme Santana Lopes Gomes | Systems and methods for recycling steelmaking converter sludge |
| CN105344462B (en) * | 2014-03-10 | 2017-12-19 | 衢州市易凡设计有限公司 | A kind of washing process for the high high high spoil coal of mud of ash |
| CN103861840B (en) * | 2014-03-12 | 2017-04-19 | 张家港市港威超声电子有限公司 | Ultrasonic wave ore pulp leaching machine |
| CN105583066A (en) * | 2015-12-25 | 2016-05-18 | 许树清 | Ultrasonic deslimer |
| CN106040441B (en) * | 2016-07-26 | 2018-01-16 | 中国矿业大学 | The ultrasound-enhanced pipe stream section mineralization device of cyclone-static microbubble floatation column |
| CN106513184B (en) * | 2016-12-05 | 2019-06-21 | 云南磷化集团有限公司 | A kind of large-scale transparent flotation column of mineral processing dynamics research |
| CN112316500B (en) * | 2020-09-30 | 2022-03-01 | 中国石油天然气股份有限公司 | Ultrasonic cyclone separation device |
| CN113102118B (en) * | 2021-05-06 | 2022-05-17 | 山东科技大学 | Enhanced mineralization device for separated ultrasonic flotation bubbles |
| CN113102120B (en) * | 2021-05-06 | 2022-05-17 | 山东科技大学 | Multi-frequency ultrasonic flotation bubble strengthening and mineralizing device |
| CN113102117B (en) * | 2021-05-06 | 2022-05-17 | 山东科技大学 | Focusing ultrasonic enhanced flotation bubble mineralization device |
| CN114011566B (en) * | 2021-09-24 | 2024-03-22 | 佛山科学技术学院 | Method for separating microplastic in soil |
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| CN101428247A (en) * | 2008-11-28 | 2009-05-13 | 天津市泰兴工贸有限公司 | Pollution-free oil-containing mud cleaning treatment method and treatment system thereof |
| CN201454698U (en) * | 2009-08-06 | 2010-05-12 | 北京矿冶研究总院 | Mineral flotation column |
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2009
- 2009-08-06 CN CN200910089189A patent/CN101642732B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052439A (en) * | 1990-11-06 | 1991-06-26 | 唐山工程技术学院 | Floatation of iron ore with acidic medium in fill-type static floatation column |
| CN2096416U (en) * | 1991-01-23 | 1992-02-19 | 中国矿业大学 | Cyclone type flotation post |
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Owner name: BGRIMM ELECTRICAL TECHNOLOGY CO., LTD. Effective date: 20130418 |
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Effective date of registration: 20130418 Address after: 100044, Beijing, Xicheng District, Xizhimen foreign Hing Street, No. 1 Patentee after: BEIJING GENERAL Research Institute OF MINING AND METALLURGY Patentee after: BGRIMM MACHINERY & AUTOMATION TECHNOLOGY Co.,Ltd. Address before: 100044, Beijing, Xicheng District, Xizhimen foreign Hing Street, No. 1 Patentee before: BEIJING GENERAL Research Institute OF MINING AND METALLURGY |
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Address after: 100044, 1 West Hing Street, Beijing, Xicheng District Co-patentee after: BGRIMM MACHINERY & AUTOMATION TECHNOLOGY Co.,Ltd. Patentee after: Mining and Metallurgical Technology Group Co.,Ltd. Address before: 100044, 1 West Hing Street, Beijing, Xicheng District Co-patentee before: BGRIMM MACHINERY & AUTOMATION TECHNOLOGY Co.,Ltd. Patentee before: Bgrimm Technology Group |
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Address after: 100044, 1 West Hing Street, Beijing, Xicheng District Co-patentee after: BGRIMM MACHINERY & AUTOMATION TECHNOLOGY Co.,Ltd. Patentee after: Bgrimm Technology Group Address before: 100044, Beijing, Xicheng District, Xizhimen foreign Hing Street, No. 1 Co-patentee before: BGRIMM MACHINERY & AUTOMATION TECHNOLOGY Co.,Ltd. Patentee before: Beijing General Research Institute of Mining and Metallurgy |
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Effective date of registration: 20200519 Address after: No.23, 18th District, No.188, nansihuan West Road, Fengtai District, Beijing 100160 Patentee after: BGRIMM MACHINERY & AUTOMATION TECHNOLOGY Co.,Ltd. Address before: 100044, 1 West Hing Street, Beijing, Xicheng District Co-patentee before: BGRIMM MACHINERY & AUTOMATION TECHNOLOGY Co.,Ltd. Patentee before: Mining and Metallurgical Technology Group Co.,Ltd. |