CN112110451A - Method for recycling nepheline in lithium feldspar tailings by soft natural stripping process - Google Patents
Method for recycling nepheline in lithium feldspar tailings by soft natural stripping process Download PDFInfo
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- CN112110451A CN112110451A CN202010923971.9A CN202010923971A CN112110451A CN 112110451 A CN112110451 A CN 112110451A CN 202010923971 A CN202010923971 A CN 202010923971A CN 112110451 A CN112110451 A CN 112110451A
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- nepheline
- shell
- recovering
- stripping process
- lithium feldspar
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- Pending
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- 238000000034 method Methods 0.000 title claims abstract description 58
- 239000010433 feldspar Substances 0.000 title claims abstract description 46
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 37
- 229910052664 nepheline Inorganic materials 0.000 title claims abstract description 34
- 239000010434 nepheline Substances 0.000 title claims abstract description 34
- 238000004064 recycling Methods 0.000 title description 2
- 239000000463 material Substances 0.000 claims abstract description 32
- 238000001354 calcination Methods 0.000 claims abstract description 14
- 238000000926 separation method Methods 0.000 claims abstract description 13
- 238000000227 grinding Methods 0.000 claims abstract description 12
- 238000007873 sieving Methods 0.000 claims abstract description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 9
- 229910052629 lepidolite Inorganic materials 0.000 claims abstract description 9
- 239000011707 mineral Substances 0.000 claims abstract description 9
- 239000010453 quartz Substances 0.000 claims abstract description 8
- 238000011084 recovery Methods 0.000 claims abstract description 8
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 5
- 239000011591 potassium Substances 0.000 claims abstract description 5
- 239000008394 flocculating agent Substances 0.000 claims abstract description 4
- 238000012216 screening Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 8
- 238000005188 flotation Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 6
- 239000003153 chemical reaction reagent Substances 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 230000002209 hydrophobic effect Effects 0.000 claims description 3
- 239000011268 mixed slurry Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 description 5
- 235000012239 silicon dioxide Nutrition 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- 239000002241 glass-ceramic Substances 0.000 description 3
- 229910052656 albite Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- BITYAPCSNKJESK-UHFFFAOYSA-N potassiosodium Chemical compound [Na].[K] BITYAPCSNKJESK-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/26—Aluminium-containing silicates, i.e. silico-aluminates
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a method for recovering nepheline in lithium feldspar tailings by a soft natural stripping process. The method for recovering nepheline in the lithium feldspar tailings by the soft natural stripping process comprises the following steps of S1: ultra-fine grinding: grinding the lithium feldspar tailings in a superfine grinding system; s2: ultrasonic screening: uniformly sieving the ground materials by an ultrasonic sieving system, separating residual unselected lepidolite and a small amount of sericite in tailings, and removing potassium; s3: and (3) calcining: the screened material enters a calcining system, so that feldspar minerals are softened and better stripped from quartz; s4: ultrasonic separation: slurrying the calcined material, introducing into an ultrasonic separation system, further dispersing the material, peeling quartz, and adding a flocculating agent. The method for recovering nepheline in the lithium feldspar tailings by the soft natural stripping process has the advantage of high recovery rate.
Description
Technical Field
The invention relates to the technical field of ore extraction, in particular to a method for recovering nepheline in lithium feldspar tailings by a soft natural stripping process.
Background
The potash-sodium feldspar contains more than 7 percent of potassium-sodium elements, and is called as the potash-sodium feldspar in the feldspar category, but the potash-sodium feldspar is called as the lithium feldspar in order to distinguish the potassium feldspar from the sodium feldspar and not contain lithium, so that various feldspar ores can be distinguished conveniently; phase analysis of the Jiuling mountain Yifeng section lepidolite ore determines that granite peggite mainly composed of silicon dioxide, lepidolite and albite in the lepidolite ore and potassium element mainly exist in the lepidolite ore, and certain amount of nepheline is contained in extracted lepidolite tailings, but the extraction efficiency of the nepheline is low, so the lithium-containing low-grade feldspar ore can only be applied to the glass ceramic industry.
Therefore, there is a need to provide a new method for recovering nepheline from the lithium feldspar tailings by a soft natural stripping process to solve the technical problems.
Disclosure of Invention
The invention solves the technical problem of providing a method for recovering nepheline in the lithium feldspar tailings by a soft natural stripping process with high recovery rate.
In order to solve the technical problems, the method for recovering nepheline in the lithium feldspar tailings by the soft natural stripping process comprises the following steps:
s1: ultra-fine grinding: grinding the lithium feldspar tailings in a superfine grinding system;
s2: ultrasonic screening: uniformly sieving the ground materials by an ultrasonic sieving system, separating residual unselected lepidolite and a small amount of sericite in tailings, and removing potassium;
s3: and (3) calcining: the screened material enters a calcining system, so that feldspar minerals are softened and better stripped from quartz;
s4: ultrasonic separation: slurrying the calcined material, putting the slurried material into an ultrasonic separation system, further dispersing the material, peeling quartz, and adding a flocculating agent;
s5: flexible recovery: the mixed slurry enters a flexible recovery system, a flotation reagent is added, hydrophilic materials are agglomerated, and hydrophobic materials are settled and separated;
s6: and (3) filtering and drying: and (4) performing filter pressing and water separation on the material separated by flotation through filter pressing equipment, entering a flash evaporation drying system, and packaging and recovering the nepheline product.
Preferably, the mineral particles ground in step S1 to about 95% have a diameter of 45um or less.
Preferably, the sieve opening diameter of the ultrasonic sieving system in the step S2 is 45 um.
Preferably, the calcination temperature in the calcination system in the step S3 is 900 ℃ to 920 ℃.
Preferably, the filter pressing equipment in the step S6 comprises a shell, a feed inlet is formed in the shell, a hydraulic cylinder is fixedly mounted on the top side of the shell, an output shaft of the hydraulic cylinder extends into the shell, a pressing plate is fixedly mounted in the shell, a filter plate is mounted in the shell in a rotating mode, a plurality of filter holes are formed in the filter plate, a plurality of universal wheels are mounted on the bottom side of the shell, a drain pipe is mounted on one side of the shell, one end of the drain pipe is communicated with the inside of the shell, a discharge outlet is formed in one side of the shell, and a sealing door is mounted in the discharge outlet in.
Preferably, a motor is installed on one side of the shell, a rotating shaft is fixedly installed on an output shaft of the motor, and the rotating shaft extends into the shell and is rotatably connected with the filter plate.
Preferably, a limiting block is fixedly mounted on the inner wall of one side of the shell and contacts with the filter plate.
Preferably, a mounting seat is fixedly mounted on the bottom side of the shell, an air cylinder is fixedly mounted on the top side of the mounting seat, an output shaft of the air cylinder extends into the shell and is fixedly connected with a fixing plate, a plurality of through-hole nails are fixedly mounted on the top side of the fixing plate and are matched with the filtering holes, and a plurality of water permeable holes are formed in the fixing plate.
Preferably, the length of the through-hole needle is greater than the depth of the filtering hole.
Preferably, fixed mounting has solid fixed ring on the sealing door, gu be connected with the stay cord on the fixed ring, be connected with the ring on the stay cord, one side fixed mounting of shell has the couple, the couple with ring looks adaptation.
Compared with the related technology, the method for recovering nepheline in the lithium feldspar tailings by the soft natural stripping process has the following beneficial effects:
the invention provides a method for recovering nepheline in lithium feldspar tailings by a soft natural stripping process, wherein forty percent of nepheline filling minerals in the lithium feldspar tailings which can be applied to paint coating industry can be recovered after the separation by the process, the bottleneck that the lithium-containing low-grade feldspar ore can only be applied to the glass ceramic industry is broken through, and the comprehensive benefit is greatly improved.
Drawings
FIG. 1 is a block flow diagram of a preferred embodiment of the method for recovering nepheline from the lithium feldspar tailings by the soft natural stripping process provided by the invention;
FIG. 2 is a schematic structural view of a filter press apparatus provided in the present invention;
fig. 3 is a schematic top view of the press apparatus of fig. 2.
Reference numbers in the figures: 1. the device comprises a shell, 2, a feeding hole, 3, a hydraulic cylinder, 4, a pressing plate, 5, a filtering plate, 6, universal wheels, 7, a water discharging pipe, 8, a discharging hole, 9, a sealing door, 10, a mounting seat, 11, a cylinder, 12, a fixing plate, 13, through hole nails, 14, a limiting block, 15, a motor, 16, a fixing ring, 17, a pull rope, 18, a circular ring, 19 and a hook.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
The first embodiment:
referring to fig. 1, in the first embodiment of the present invention, the method for recovering nepheline from the albite tailings by the soft natural stripping process comprises the following steps:
s1: ultra-fine grinding: grinding the lithium feldspar tailings in a superfine grinding system;
s2: ultrasonic screening: uniformly sieving the ground materials by an ultrasonic sieving system, separating residual unselected lepidolite and a small amount of sericite in tailings, and removing potassium;
s3: and (3) calcining: the screened material enters a calcining system, so that feldspar minerals are softened and better stripped from quartz;
s4: ultrasonic separation: slurrying the calcined material, putting the slurried material into an ultrasonic separation system, further dispersing the material, peeling quartz, and adding a flocculating agent;
s5: flexible recovery: the mixed slurry enters a flexible recovery system, a flotation reagent is added, hydrophilic materials are agglomerated, and hydrophobic materials are settled and separated;
s6: and (3) filtering and drying: and (4) performing filter pressing and water separation on the material separated by flotation through filter pressing equipment, entering a flash evaporation drying system, and packaging and recovering the nepheline product.
The step S1 is to grind the mineral particles to 95% or less with a diameter of 45 um.
The sieve hole diameter of the ultrasonic sieving system in the step S2 is 45 um.
The calcination temperature in the calcination system in the step S3 is 900-920 ℃.
Compared with the related technology, the method for recovering nepheline in the lithium feldspar tailings by the soft natural stripping process has the following beneficial effects:
the invention provides a method for recovering nepheline in lithium feldspar tailings by a soft natural stripping process, wherein forty percent of nepheline filling minerals in the lithium feldspar tailings which can be applied to paint coating industry can be recovered after the separation by the process, the bottleneck that the lithium-containing low-grade feldspar ore can only be applied to the glass ceramic industry is broken through, and the comprehensive benefit is greatly improved.
Second embodiment:
based on the method for recovering nepheline from the lithium feldspar tailings by the soft natural stripping process provided by the first embodiment of the application, the second embodiment of the application provides another method for recovering nepheline from the lithium feldspar tailings by the soft natural stripping process. The second embodiment is merely a preferred way of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.
The second embodiment of the present invention will be further described with reference to the drawings and the following description.
Referring to fig. 2-3, the present embodiment is different from the first embodiment in that the filter pressing device in step S6 includes a housing 1, a feeding port 2 is disposed on the housing 1, a hydraulic cylinder 3 is fixedly mounted on the top side of the housing 1, an output shaft of the hydraulic cylinder 3 extends into the housing 1 and is fixedly mounted with a pressing plate 4, a filter plate 5 is rotatably mounted in the housing 1, the filter plate 5 is provided with a plurality of filter holes, a plurality of universal wheels 6 are mounted on the bottom side of the housing 1, a drain pipe 7 is mounted on one side of the housing 1, one end of the drain pipe 7 is communicated with the inside of the housing 1, a discharging port 8 is disposed on one side of the housing 1, and a sealing door 9 is rotatably mounted in the discharging port 8.
The filter plate is characterized in that a motor 15 is installed on one side of the shell 1, a rotating shaft is fixedly installed on an output shaft of the motor 15, and the rotating shaft extends into the shell 1 and is rotatably connected with the filter plate 5.
A limiting block 14 is fixedly arranged on the inner wall of one side of the shell 1, and the limiting block 14 is in contact with the filter plate 5.
The bottom side fixed mounting of shell 1 has mount pad 10, the top side fixed mounting of mount pad 10 has cylinder 11, the output shaft of cylinder 11 extends to in the shell 1 and fixedly connected with fixed plate 12, the top side fixed mounting of fixed plate 12 has a plurality of through-hole nails 13, through-hole nail 13 with filter hole looks adaptation, it has a plurality of holes of permeating water to begin on fixed plate 12.
The length of the through-hole needle 13 is greater than the depth of the filtering hole.
Fixed mounting has solid fixed ring 16 on the sealing door 9, gu be connected with stay cord 17 on the fixed ring 16, be connected with ring 18 on the stay cord 17, one side fixed mounting of shell 1 has couple 19, couple 19 with ring 18 looks adaptation.
Referring to fig. 2-3, a method of using the filter press apparatus of the present invention is as follows:
the material separated by flotation is poured onto a filter plate 5 through a feeding hole 2, a hydraulic cylinder 3 is started, the hydraulic cylinder 3 drives a pressing plate 4 to extrude the material, moisture leaks from a filter hole and is discharged through a drain pipe 7, a sealing door 9 is opened after filter pressing is completed, a circular ring 18 is hung on a hook 19 to hang the sealing door 9, a motor 15 is started, the motor 15 drives the filter plate 5 to lift, the material is discharged from a discharge hole 8 due to gravity, the filter plate 5 is put down after discharging is completed, a cylinder 11 is started, the cylinder 11 drives a fixing plate 12 to lift upwards, a through hole nail 13 is matched with the filter hole, the material clamped on the filter hole is poked out, and the filter hole is prevented from being.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A method for recovering nepheline in lithium feldspar tailings by a soft natural stripping process is characterized by comprising the following steps:
s1: ultra-fine grinding: grinding the lithium feldspar tailings in a superfine grinding system;
s2: ultrasonic screening: uniformly sieving the ground materials by an ultrasonic sieving system, separating residual unselected lepidolite and a small amount of sericite in tailings, and removing potassium;
s3: and (3) calcining: the screened material enters a calcining system, so that feldspar minerals are softened and better stripped from quartz;
s4: ultrasonic separation: slurrying the calcined material, putting the slurried material into an ultrasonic separation system, further dispersing the material, peeling quartz, and adding a flocculating agent;
s5: flexible recovery: the mixed slurry enters a flexible recovery system, a flotation reagent is added, hydrophilic materials are agglomerated, and hydrophobic materials are settled and separated;
s6: and (3) filtering and drying: and (4) performing filter pressing and water separation on the material separated by flotation through filter pressing equipment, entering a flash evaporation drying system, and packaging and recovering the nepheline product.
2. The method for recovering nepheline from the lithium feldspar tailings by the soft natural stripping process as claimed in claim 1, wherein the mineral particles ground in the step S1 to about 95% have a diameter of 45um or less.
3. The method for recovering nepheline from the lithium feldspar tailings by the soft natural stripping process as claimed in claim 1, wherein the sieve hole diameter of the ultrasonic sieving system in the step S2 is 45 um.
4. The method for recovering nepheline from the lithium feldspar tailings by the soft natural stripping process as claimed in claim 1, wherein the calcining temperature in the calcining system in the step S3 is 900-920 ℃.
5. The method for recovering nepheline from the lithium feldspar tailings by the soft natural stripping process according to claim 1, wherein the filter pressing equipment in the step S6 comprises a shell, a feed inlet is formed in the shell, a hydraulic cylinder is fixedly mounted on the top side of the shell, an output shaft of the hydraulic cylinder extends into the shell and is fixedly mounted with a pressing plate, a filter plate is rotatably mounted in the shell and is provided with a plurality of filter holes, a plurality of universal wheels are mounted on the bottom side of the shell, a drain pipe is mounted on one side of the shell, one end of the drain pipe is communicated with the inside of the shell, a discharge outlet is formed in one side of the shell, and a sealing door is rotatably mounted in the discharge outlet.
6. The method for recovering the nepheline in the lithium feldspar tailings by the soft natural stripping process as claimed in claim 5, wherein a motor is installed on one side of the shell, a rotating shaft is fixedly installed on an output shaft of the motor, and the rotating shaft extends into the shell and is rotatably connected with the filter plate.
7. The method for recovering the nepheline in the lithium feldspar tailings by the soft natural stripping process as claimed in claim 5, wherein a limiting block is fixedly arranged on the inner wall of one side of the shell, and the limiting block is in contact with the filter plate.
8. The method for recovering the nepheline from the lithium feldspar tailings by the soft natural stripping process as claimed in claim 5, wherein a mounting seat is fixedly mounted at the bottom side of the shell, an air cylinder is fixedly mounted at the top side of the mounting seat, an output shaft of the air cylinder extends into the shell and is fixedly connected with a fixing plate, a plurality of through hole nails are fixedly mounted at the top side of the fixing plate, the through hole nails are matched with the filtering holes, and a plurality of water permeable holes are formed in the fixing plate.
9. The method for recovering nepheline from the lithium feldspar tailings by the soft natural stripping process as claimed in claim 8, wherein the length of the through hole needle is greater than the depth of the filter hole.
10. The method for recovering the nepheline in the lithium feldspar tailings by the soft natural stripping process as claimed in claim 5, wherein a fixing ring is fixedly arranged on the sealing door, a pull rope is connected to the fixing ring, a ring is connected to the pull rope, a hook is fixedly arranged on one side of the outer shell, and the hook is matched with the ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010923971.9A CN112110451A (en) | 2020-09-04 | 2020-09-04 | Method for recycling nepheline in lithium feldspar tailings by soft natural stripping process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010923971.9A CN112110451A (en) | 2020-09-04 | 2020-09-04 | Method for recycling nepheline in lithium feldspar tailings by soft natural stripping process |
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| CN112110451A true CN112110451A (en) | 2020-12-22 |
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| CN202010923971.9A Pending CN112110451A (en) | 2020-09-04 | 2020-09-04 | Method for recycling nepheline in lithium feldspar tailings by soft natural stripping process |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912811A (en) * | 2010-07-15 | 2010-12-15 | 英德市奥胜新材料有限责任公司 | Method for preparing nepheline syenite powder |
| CN105327773A (en) * | 2015-11-26 | 2016-02-17 | 四川南江新兴矿业有限公司 | Method for recovering nepheline ore in nepheline ore tailings |
| CN109205628A (en) * | 2017-06-29 | 2019-01-15 | 江苏鑫亿鼎石英科技股份有限公司 | A kind of preparation process of glass sand |
| CN110902997A (en) * | 2019-12-02 | 2020-03-24 | 长兴昊太机械有限公司 | Full-automatic filter pressing equipment based on ore mud |
| CN210885581U (en) * | 2019-10-29 | 2020-06-30 | 吉林市恒源纸业有限公司 | Diatomite papermaking sewage filtering device |
| CN210964111U (en) * | 2019-08-19 | 2020-07-10 | 徐州古汉香业有限公司 | Prevent sewage treatment plant for municipal administration of jam |
| CN211226858U (en) * | 2019-11-27 | 2020-08-11 | 湖北冠驰环境科技有限公司 | Filter press in gravel production line |
-
2020
- 2020-09-04 CN CN202010923971.9A patent/CN112110451A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912811A (en) * | 2010-07-15 | 2010-12-15 | 英德市奥胜新材料有限责任公司 | Method for preparing nepheline syenite powder |
| CN105327773A (en) * | 2015-11-26 | 2016-02-17 | 四川南江新兴矿业有限公司 | Method for recovering nepheline ore in nepheline ore tailings |
| CN109205628A (en) * | 2017-06-29 | 2019-01-15 | 江苏鑫亿鼎石英科技股份有限公司 | A kind of preparation process of glass sand |
| CN210964111U (en) * | 2019-08-19 | 2020-07-10 | 徐州古汉香业有限公司 | Prevent sewage treatment plant for municipal administration of jam |
| CN210885581U (en) * | 2019-10-29 | 2020-06-30 | 吉林市恒源纸业有限公司 | Diatomite papermaking sewage filtering device |
| CN211226858U (en) * | 2019-11-27 | 2020-08-11 | 湖北冠驰环境科技有限公司 | Filter press in gravel production line |
| CN110902997A (en) * | 2019-12-02 | 2020-03-24 | 长兴昊太机械有限公司 | Full-automatic filter pressing equipment based on ore mud |
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Application publication date: 20201222 |
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