CN110479455A - A kind of crushing device for processing ultrapure quartz sand - Google Patents
A kind of crushing device for processing ultrapure quartz sand Download PDFInfo
- Publication number
- CN110479455A CN110479455A CN201910802667.6A CN201910802667A CN110479455A CN 110479455 A CN110479455 A CN 110479455A CN 201910802667 A CN201910802667 A CN 201910802667A CN 110479455 A CN110479455 A CN 110479455A
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- Prior art keywords
- pipe
- quartz sand
- shock
- feeder pipe
- impingement mix
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 239000006004 Quartz sand Substances 0.000 title claims abstract description 59
- 230000035939 shock Effects 0.000 claims abstract description 53
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 230000000903 blocking effect Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 210000000232 gallbladder Anatomy 0.000 claims description 7
- 239000003507 refrigerant Substances 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 4
- 239000011214 refractory ceramic Substances 0.000 claims description 3
- 230000008646 thermal stress Effects 0.000 abstract description 10
- 239000002245 particle Substances 0.000 abstract description 9
- 239000010453 quartz Substances 0.000 abstract description 9
- 239000000203 mixture Substances 0.000 description 21
- 239000007789 gas Substances 0.000 description 10
- 239000000843 powder Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000002386 leaching Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 208000035126 Facies Diseases 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000000713 high-energy ball milling Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/06—Jet mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
- B02C19/186—Use of cold or heat for disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Disintegrating Or Milling (AREA)
Abstract
A kind of crushing device for processing ultrapure quartz sand, is related to quartz mine technical field of processing equipment, comprising: high temperature process furnances, for heating to quartz sand, high-temperature tubular furnace interior is equipped with the first feeder pipe；Cryogenic system is equipped with the second feeder pipe for cooling down to quartz sand inside cryogenic system；Impingement mix tank, impingement mix pot bottom are equipped with discharge gate, and top is equipped with exhaust outlet, and exhaust ports are connected with exhaust fan, connect impact tube in the middle part of impingement mix tank；Impact tube one end stretches to inside impingement mix tank and is equipped with nozzle, the other end is located at impingement mix tank external connection compressor outlet, impact tube is provided with two, respectively first shock pipe, second shock pipe, the axis of the axis of first shock pipe and second shock pipe is on the same line, first feeder pipe bottom end is connected on first shock pipe, and the second feeder pipe bottom end is connected on second shock pipe.Accelerate the thermal stress of quartz particles broken.
Description
Technical field
The present invention relates to quartz mine technical field of processing equipment, and in particular to a kind of broken dress for processing ultrapure quartz sand
It sets.
Background technique
Quartz sand is the primary raw material of glass production, is needed mostly quartz mine is broken by repeatedly or repeatedly milling
It is process.Quartz is a kind of hard, wear-resisting, stable chemical performance native crystal silica, Mohs' hardness 7.Quartz sand heat
The coefficient of expansion is extremely low, is 5.5 × 10-7/℃(0-1000℃).Existing high-energy ball milling and the processing of high-temperature water quenching technology and its equipment
Glass sand at all cannot be in quartz sand surface and internal formation micro-crack, to cannot provide for acidleach removal of impurities sufficiently large
Cleaning area, pickling effect is very poor.
Summary of the invention
What the present invention to be overcome is existing high-energy ball milling and high-temperature water quenching technology and its equipment processing high-purity quartz
Sand at all cannot be in quartz sand surface and internal the problem of forming micro-crack, it is therefore an objective to provide a kind of breaking for processing ultrapure quartz sand
Crushing device.
The following technical solution is employed for the technical problems to be solved by the invention to realize:
A kind of crushing device for processing ultrapure quartz sand, comprising:
High temperature process furnances, for heating to quartz sand, the high-temperature tubular furnace interior is equipped with the first feeder pipe；
Cryogenic system is equipped with the second feeder pipe for cooling down to quartz sand inside the cryogenic system；
Impingement mix tank, the impingement mix pot bottom are equipped with discharge gate, and top is equipped with exhaust outlet, and the exhaust ports connect
It is connected to exhaust fan, connects impact tube in the middle part of the impingement mix tank；
Described impact tube one end, which stretches to inside impingement mix tank, is equipped with nozzle, and the other end is located at outside impingement mix tank
Connect compressor gas outlet, the impact tube are provided with two, respectively first shock pipe, second shock pipe, and described first hits
On the same line, first feeder pipe bottom end is connected to first shock pipe to the axis of the axis and second shock pipe that hit pipe
On, second feeder pipe bottom end is connected on second shock pipe.
Further, spacing is 1-5cm between the nozzle on the nozzle and second shock pipe on the first shock pipe.
Further, the cryogenic system includes liner and outer gallbladder, is filled between the liner and outer gallbladder for heat-insulating material
Vacuum chamber, second feeder pipe has been sealed and filled with freezing between second feeder pipe and liner by passing through in liner
Agent.
Further, filter screen bucket is installed inside the impingement mix tank, the filter screen bucket is located at impact tube top,
Shaft is installed, the shaft upper end is fixed with impeller, and the impeller is located at filter screen bucket top, described on the filter screen bucket
Shaft lower end is equipped with scraper plate, and the scraper plate is close to the setting of filter screen bucket lower surface, and blocking material ring is arranged in filter screen bucket edge,
The scraper plate end point is located at blocking material ring lower part.
Further, first feeder pipe and the second feeder pipe upper end are separately installed with feed hopper.
Further, first feeder pipe is refractory ceramics round tube, and first feeder pipe is by high temperature process furnances
It is passed through in burner hearth.
The beneficial effects of the present invention are:
The configuration of the present invention is simple, by the setting of high temperature process furnances and cryogenic system, so that being formed between quartz sand raw material
The higher temperature difference generates higher thermal stress, accelerates the thermal stress of quartz particles broken.Meanwhile the acceleration for passing through quartz particles
It hits, is crushed so that being superimposed mechanical bumps on the basis of thermal stress itself is broken, particle surface and inside are produced
Raw more micro-cracks, to provide sufficiently large leaching surface for acidleach.
Detailed description of the invention
Fig. 1 is structure chart of the invention；
Fig. 2 is installation filter screen bucket structure figure of the invention；
Fig. 3 is part A enlarged drawing in Fig. 2 of the invention；
Fig. 4 is cryogenic system structure chart of the invention；
In figure: 1, high temperature process furnances；2, cryogenic system；3, impingement mix tank；12, the first feeder pipe；13, the second blanking
Pipe；14, discharge gate；15, exhaust outlet；16, exhaust fan；21, nozzle；22, compressor；23, first shock pipe；24, second shock
Pipe；31, liner；32, outer gallbladder；33, heat-insulating material；34, refrigerant；41, filter screen bucket；42, shaft；43, impeller；44, scraper plate；
45, blocking material ring；51, feed hopper.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Embodiment 1
As shown in Figure 1；A kind of crushing device for processing ultrapure quartz sand, comprising:
High temperature process furnances 1 are equipped with the first feeder pipe 12 for heating to quartz sand inside high temperature process furnances 1；
Cryogenic system 2 is equipped with the second feeder pipe 13 for cooling down to quartz sand inside cryogenic system 2；
Impingement mix tank 3,3 bottom of impingement mix tank are equipped with discharge gate 14, and top is equipped with exhaust outlet 15, connects at exhaust outlet 15
It is connected to exhaust fan 16, connects impact tube in the middle part of impingement mix tank 3；
Impact tube one end, which stretches to inside impingement mix tank 3, is equipped with nozzle 21, and the other end is located at outside impingement mix tank 3
22 gas outlet of connect compressor, impact tube are provided with two, respectively first shock pipe 23, second shock pipe 24, first shock
On the same line, 12 bottom end of the first feeder pipe is connected to first shock pipe 23 to the axis of the axis of pipe 23 and second shock pipe 24
On, 13 bottom end of the second feeder pipe is connected on second shock pipe 24, and the spray such as double discharge type nozzle, Venturi type can be used in nozzle 21
Mouth.
A kind of crushing device for processing ultrapure quartz sand, working principle:
Quartz sand is separately added into the first feeder pipe 12 and the second feeder pipe 13, the quartz sand warp in the first feeder pipe 12
It is heated after crossing high temperature process furnances 1, the quartz sand of high temperature enters in first shock pipe 23 through the first feeder pipe 12, due to pressure
High pressure gas is added into first shock pipe 23 in contracting machine 22, into the high quartz sand in first shock pipe 23 in high pressure gas drum
It blows down and is sprayed through nozzle 21, at the same time, the quartz sand in the second feeder pipe 13 is cooled down through cryogenic system 2, low-temperature condition
Under quartz sand entered in second shock pipe 24 through the second feeder pipe 13, the high pressure gas in second shock pipe 24 advertises low temperature
Quartz sand has the ejection of nozzle 21, since the nozzle 21 on first shock pipe 23 and second shock pipe 24 is opposite, so that two shocks
The high quartz sand sprayed on pipe is hit with low quartz sand facies, high temperature difference, high speed effect under, generated between quartz sand higher
Thermal stress accelerates the thermal stress of quartz particles broken, so that it is broken to be superimposed mechanical bumps on the basis of thermal stress itself is broken
It is broken, enable particle surface and inside to generate more micro-cracks, to provide sufficiently large leaching surface for acidleach.
Embodiment 2
As shown in Figure 2, Figure 3, Figure 4；A kind of crushing device for processing ultrapure quartz sand, comprising:
High temperature process furnances 1 are equipped with the first feeder pipe 12 for heating to quartz sand inside high temperature process furnances 1；
Cryogenic system 2 is equipped with the second feeder pipe 13 for cooling down to quartz sand inside cryogenic system 2；
Impingement mix tank 3,3 bottom of impingement mix tank are equipped with discharge gate 14, and top is equipped with exhaust outlet 15, connects at exhaust outlet 15
It is connected to exhaust fan 16, connects impact tube in the middle part of impingement mix tank 3；
Impact tube one end, which stretches to inside impingement mix tank 3, is equipped with nozzle 21, and the other end is located at outside impingement mix tank 3
22 gas outlet of connect compressor, impact tube are provided with two, respectively first shock pipe 23, second shock pipe 24, first shock
On the same line, 12 bottom end of the first feeder pipe is connected to first shock pipe 23 to the axis of the axis of pipe 23 and second shock pipe 24
On, 13 bottom end of the second feeder pipe is connected on second shock pipe 24, and the spray such as double discharge type nozzle, Venturi type can be used in nozzle 21
Mouth.
A kind of crushing device for processing ultrapure quartz sand, working principle:
Quartz sand is separately added into the first feeder pipe 12 and the second feeder pipe 13, the quartz sand warp in the first feeder pipe 12
It is heated after crossing high temperature process furnances 1, the quartz sand of high temperature enters in first shock pipe 23 through the first feeder pipe 12, due to pressure
High pressure gas is added into first shock pipe 23 in contracting machine 22, into the high quartz sand in first shock pipe 23 in high pressure gas drum
It blows down and is sprayed through nozzle 21, at the same time, the quartz sand in the second feeder pipe 13 is cooled down through cryogenic system 2, low-temperature condition
Under quartz sand entered in second shock pipe 24 through the second feeder pipe 13, the high pressure gas in second shock pipe 24 advertises low temperature
Quartz sand has the ejection of nozzle 21, since the nozzle 21 on first shock pipe 23 and second shock pipe 24 is opposite, so that two shocks
The high quartz sand sprayed on pipe is hit with low quartz sand facies, high temperature difference, high speed effect under, generated between quartz sand higher
Thermal stress accelerates the thermal stress of quartz particles broken, so that it is broken to be superimposed mechanical bumps on the basis of thermal stress itself is broken
It is broken, enable particle surface and inside to generate more micro-cracks, to provide sufficiently large leaching surface for acidleach.
Spacing is 1-5cm between nozzle on nozzle on first shock pipe 23 and second shock pipe 24.
Cryogenic system 2 includes liner 31 and outer gallbladder 32, the vacuum filled between liner 31 and outer gallbladder 32 for heat-insulating material 33
Chamber, the second feeder pipe 13 have been sealed and filled with refrigerant 34 between second feeder pipe 13 and liner 31, absolutely by passing through in liner 31
Such as glass fibre, asbestos, rock wool, silicate can be selected in hot material, and refrigerant can be selected liquid nitrogen, liquid helium, utilize refrigerant pair
Cool down by the quartz sand in the second feeder pipe.
After the quartz sand of high temperature and low-temperature condition is hit in impingement mix tank 3, quartz sand rupture can generate a large amount of powder
End, and amount of powder can be discharged through exhaust outlet, and powder is caused to pollute, by being equipped with filter screen bucket 41 inside impingement mix tank 3,
Filter screen bucket 41 is located at impact tube top, and shaft 42 is equipped on filter screen bucket 41, and 42 upper end of shaft is fixed with impeller 43, impeller
43 are located at 41 top of filter screen bucket, and 42 lower end of shaft is equipped with scraper plate 44, and scraper plate 44 is close to the setting of 41 lower surface of filter screen bucket, filtering
Blocking material ring 45 is arranged in 41 edges of net bucket, and 44 end point of scraper plate is located at 45 lower part of blocking material ring, using filter screen bucket 41 to exhaust outlet
Quartz sand powder at 15 is filtered, and in filter process, quartz sand powder is adsorbed on filter screen bucket 41, using across filtering
The high pressure gas of net bucket 41 agitates impeller 43 to rotate, so that shaft 42 be driven to rotate, and then scraper plate 44 is made to scrape filter screen bucket 41,
Quartz sand particle on filter screen bucket 41 is scraped at blocking material ring 45, falls to impingement mix tank 3 through 3 side wall of impingement mix tank
Bottom avoids quartz sand powder from blocking filter screen bucket 41, improves filter effect.
First feeder pipe 12 and 13 upper end of the second feeder pipe are separately installed with feed hopper 51, are convenient for blanking.
First feeder pipe 12 is refractory ceramics round tube, and the first feeder pipe 12 passes through in the burner hearth by high temperature process furnances 1.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
1. a kind of crushing device for processing ultrapure quartz sand characterized by comprising
High temperature process furnances, for heating to quartz sand, the high-temperature tubular furnace interior is equipped with the first feeder pipe；
Cryogenic system is equipped with the second feeder pipe for cooling down to quartz sand inside the cryogenic system；
Impingement mix tank, the impingement mix pot bottom are equipped with discharge gate, and top is equipped with exhaust outlet, and the exhaust ports are connected with
Exhaust fan, the impingement mix tank middle part connect impact tube；
Described impact tube one end, which stretches to inside impingement mix tank, is equipped with nozzle, and the other end is located at impingement mix tank external connection
Compressor outlet, the impact tube are provided with two, respectively first shock pipe, second shock pipe, the first shock pipe
Axis and second shock pipe axis on the same line, first feeder pipe bottom end is connected on first shock pipe, institute
The second feeder pipe bottom end is stated to be connected on second shock pipe.
2. a kind of crushing device for processing ultrapure quartz sand according to claim 1, which is characterized in that the first shock
Spacing is 1-5cm between nozzle on nozzle on pipe and second shock pipe.
3. a kind of crushing device for processing ultrapure quartz sand according to claim 1, which is characterized in that the cryogenic system
It is the vacuum chamber of heat-insulating material filling between the liner and outer gallbladder, second feeder pipe is by liner including liner and outer gallbladder
In pass through, be sealed and filled with refrigerant between second feeder pipe and liner.
4. a kind of crushing device for processing ultrapure quartz sand according to claim 1, which is characterized in that the impingement mix
Filter screen bucket is installed, the filter screen bucket is located at impact tube top, is equipped with shaft on the filter screen bucket, described inside tank
Shaft upper end is fixed with impeller, and the impeller is located at filter screen bucket top, and the shaft lower end is equipped with scraper plate, and the scraper plate is close to
Blocking material ring is arranged in the setting of filter screen bucket lower surface, filter screen bucket edge, and the scraper plate end point is located at blocking material ring lower part.
5. a kind of crushing device for processing ultrapure quartz sand according to claim 1, which is characterized in that first blanking
Pipe is separately installed with feed hopper with the second feeder pipe upper end.
6. a kind of crushing device for processing ultrapure quartz sand according to claim 1, which is characterized in that first blanking
Pipe is refractory ceramics round tube, and first feeder pipe in the burner hearth of high temperature process furnances by passing through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910802667.6A CN110479455A (en) | 2019-08-28 | 2019-08-28 | A kind of crushing device for processing ultrapure quartz sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910802667.6A CN110479455A (en) | 2019-08-28 | 2019-08-28 | A kind of crushing device for processing ultrapure quartz sand |
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| Publication Number | Publication Date |
|---|---|
| CN110479455A true CN110479455A (en) | 2019-11-22 |
Family
ID=68554818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910802667.6A Pending CN110479455A (en) | 2019-08-28 | 2019-08-28 | A kind of crushing device for processing ultrapure quartz sand |
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| Country | Link |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113019641A (en) * | 2021-03-30 | 2021-06-25 | 重庆医药高等专科学校 | Airflow crushing device for pharmaceutical raw materials |
| CN114345443A (en) * | 2020-10-14 | 2022-04-15 | 通道福香米业有限公司 | Updraft type rice mill |
| CN114713349A (en) * | 2021-01-06 | 2022-07-08 | 廊坊新龙立机械制造有限公司 | Fluidized bed type air flow crusher integrating differential pressure crushing and air explosion crushing |
| CN116200212A (en) * | 2023-05-06 | 2023-06-02 | 中国科学院过程工程研究所 | Device and method for dry carbide slag treatment by using impinging stream |
| CN116273404A (en) * | 2023-04-20 | 2023-06-23 | 江苏泓顺硅基半导体科技有限公司 | Quartz sand crushing equipment capable of reducing dust pollution |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114345443A (en) * | 2020-10-14 | 2022-04-15 | 通道福香米业有限公司 | Updraft type rice mill |
| CN114713349A (en) * | 2021-01-06 | 2022-07-08 | 廊坊新龙立机械制造有限公司 | Fluidized bed type air flow crusher integrating differential pressure crushing and air explosion crushing |
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| CN116273404A (en) * | 2023-04-20 | 2023-06-23 | 江苏泓顺硅基半导体科技有限公司 | Quartz sand crushing equipment capable of reducing dust pollution |
| CN116273404B (en) * | 2023-04-20 | 2023-09-19 | 江苏泓顺硅基半导体科技有限公司 | Quartz sand crushing equipment capable of reducing dust pollution |
| CN116200212A (en) * | 2023-05-06 | 2023-06-02 | 中国科学院过程工程研究所 | Device and method for dry carbide slag treatment by using impinging stream |
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Application publication date: 20191122 |