CN111635131A - Acid pickling method for raw materials for glass production - Google Patents
Acid pickling method for raw materials for glass production Download PDFInfo
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- CN111635131A CN111635131A CN202010424024.5A CN202010424024A CN111635131A CN 111635131 A CN111635131 A CN 111635131A CN 202010424024 A CN202010424024 A CN 202010424024A CN 111635131 A CN111635131 A CN 111635131A
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- acid
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- pickling
- pickling tank
- washing
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- 238000005554 pickling Methods 0.000 title claims abstract description 127
- 239000002253 acid Substances 0.000 title claims abstract description 90
- 239000002994 raw material Substances 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000011521 glass Substances 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000005406 washing Methods 0.000 claims abstract description 31
- 239000012535 impurity Substances 0.000 claims abstract description 27
- 238000007599 discharging Methods 0.000 claims abstract description 16
- 238000010992 reflux Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000011084 recovery Methods 0.000 claims abstract description 11
- 238000003860 storage Methods 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 25
- 238000004140 cleaning Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 229910000366 copper(II) sulfate Inorganic materials 0.000 claims description 3
- JZCCFEFSEZPSOG-UHFFFAOYSA-L copper(II) sulfate pentahydrate Chemical compound O.O.O.O.O.[Cu+2].[O-]S([O-])(=O)=O JZCCFEFSEZPSOG-UHFFFAOYSA-L 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 239000002657 fibrous material Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- 239000002344 surface layer Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 abstract description 9
- 230000036632 reaction speed Effects 0.000 abstract description 3
- 235000021110 pickles Nutrition 0.000 description 9
- 239000006004 Quartz sand Substances 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 238000001179 sorption measurement Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 239000008187 granular material Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 230000002547 anomalous effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/02—Pretreated ingredients
- C03C1/022—Purification of silica sand or other minerals
Abstract
The invention belongs to the field of glass production and processing, and particularly relates to a raw material acid pickling method for glass production, which comprises the following steps: s1, feeding, namely feeding the raw materials to be pickled into a pickling tank through a feeding machine, and sealing the tank opening; s2, heating, introducing hot steam to heat the pickling tank, and keeping the temperature after heating to 60-100 ℃; s3, adding acid liquor, and injecting a proper amount of acid liquor into the acid washing tank, wherein the liquid level above the acid liquor just exceeds the pipe orifice of the acid outlet pipe; s4, acid washing and purifying, wherein a circulating pump is started to circulate and reflux the acid liquid in an acid washing tank and a reflux tank for 6-8 h; s5, discharging acid liquor, and discharging the acid liquor in the acid washing tank to an acid liquor recovery storage tank; s6, washing and discharging, cooling the pickling tank, washing the raw materials for 2-3 times by using clean water, and discharging. The invention can ensure that the pickling solution is in full contact reaction with the surface of the raw material through the circulating flow of the pickling solution in the pickling tank, the pickling solution can be in uniform contact with the raw material particles, and the reaction speed of the pickling solution and impurities is accelerated.
Description
Technical Field
The invention belongs to the field of glass production and processing, and particularly relates to a pickling method of a raw material for glass production.
Background
In the manufacturing and production of glass, quartz sand is an important mineral raw material, the quartz sand mineral raw material often contains a large amount of metal impurities, and the impurities in the quartz sand need to be removed during production so as to ensure the quality of glass products.
When the existing pickling tank is used for pickling, acid liquor is difficult to uniformly contact quartz sand particles, impurities of the acid liquor are difficult to fully contact with the acid liquor and are difficult to dissolve, and the product quality cannot be ensured at all; the mode that the motor stirred is partly adopted, make quartz sand surface and acidizing fluid fully contact reaction, though solved the homogeneity of acidizing fluid and quartz sand granule contact and increased the reaction rate problem of acidizing fluid and impurity, nevertheless because the quartz sand raw materials is anomalous many arriss limit granule, and hardness is great, very easily wearing and tearing at stirring in-process stirring rod can increase the impurity in the pickling tank on the contrary and cause secondary pollution, from this, traditional pickling tank is difficult to guarantee the pickling effect of quartz sand raw materials, and pickling efficiency is lower.
Therefore, we propose a raw material pickling method for glass production to solve the above problems.
Disclosure of Invention
The invention aims to provide a raw material pickling method for glass production, which has a good impurity removal effect and high efficiency and aims at solving the problems of poor pickling effect and low efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme: a raw material pickling method for glass production mainly comprises the following steps:
s1, feeding, namely feeding the raw materials to be pickled into a pickling tank through a feeding machine, and sealing the tank opening;
s2, heating, introducing hot steam to heat the pickling tank, and keeping the temperature after heating to 60-100 ℃;
s3, adding acid liquor, and injecting a proper amount of acid liquor into the acid washing tank, wherein the liquid level above the acid liquor just submerges the pipe orifice of the acid outlet pipe, and the acid washing solution comprises the following components: 10-15 wt% of hydrochloric acid; 3-8 wt% of hydrofluoric acid; 5-10 wt% of nitric acid;
s4, acid washing and purifying, wherein a circulating pump is started to circulate and reflux the acid liquid in an acid washing tank and a reflux tank for 6-8h, so that the acid liquid and impurities in the raw materials are subjected to sufficient chemical reaction, and the impurities on the surface layer and the shallow layer of the raw materials are separated;
s5, discharging acid liquor, and after impurity removal of the acid liquor is completed, discharging the acid liquor in the acid washing tank into an acid liquor recovery storage tank;
s6, washing and discharging, cooling the pickling tank, washing the raw material for 2-3 times by using clean water, and discharging to obtain a purified raw material;
the glass pickling process also relates to pickling equipment, the pickling equipment comprises a pickling tank, a backflow tank, a feeding machine and an acid liquor recovery storage tank, the feeding machine is installed on the top surface of the pickling tank, the pickling tank is communicated with the backflow tank through an acid inlet pipe and an acid outlet pipe, the inlet end of the acid inlet pipe is arranged at the bottom of the pickling tank, the outlet end of the acid outlet pipe is arranged at the upper end part of the pickling tank, a circulating pump is installed on the acid inlet pipe, and the acid liquor recovery storage tank is communicated with the pickling tank;
the pickling tank is arranged in an inclined manner, the included angle between the central axis and the horizontal plane is 30 degrees, a plurality of flow baffle plates which are arranged at equal intervals are arranged in the pickling tank, and the flow baffle plates are respectively arranged on the inner top surface and the inner bottom surface of the pickling tank and are arranged in a staggered manner;
and a filter layer and an adsorption layer are arranged in the backflow tank, the filter layer is formed by stacking bluestone particles, and the adsorption layer is made of an activated carbon fiber material.
Preferably, the flow blocking plate is made of corrosion-resistant materials, a plurality of flow blocking pieces are equidistantly mounted on the side wall of the flow blocking plate, and the flow blocking pieces are parallel to the axis direction of the pickling tank.
Preferably, a plurality of cleaning balls are arranged in the pickling tank, and the cleaning balls are made of deformable materials.
Compared with the prior art, the acid washing method of the raw materials for producing the glass has the advantages that:
1. according to the invention, the reflux tank and the circulating pump are arranged, so that the pickling solution in the pickling tank is circulated and refluxed in a low-in and high-out mode, the pickling solution continuously flows among the raw material particles, the full contact reaction between the pickling solution and the surface of the raw material is ensured, the pickling solution and the raw material particles can be uniformly contacted, and the reaction speed of the pickling solution and impurities is accelerated.
2. According to the invention, the flow path of the pickling solution in the pickling tank is greatly prolonged by arranging the plurality of baffle plates which are arranged in a staggered manner, the pickling solution can be ensured to flow in the pickling tank fully and uniformly, dead corners are prevented from being left, the full and uniform pickling of the raw material can be realized without using a motor stirring mode, the problem of secondary pollution is avoided, and the impurity removal amount of the raw material is increased.
3. According to the invention, the filter layer and the adsorption layer are arranged, the filter layer can filter impurities carried by the pickling solution in the reflux process, and the adsorption layer can adsorb cl generated in the pickling solution-Ions promote the forward proceeding of impurity removal reaction in the pickling tank, effectively shorten the pickling reaction time and improve the pickling efficiency.
4. According to the invention, the cleaning ball is arranged, the cleaning ball can flow in the pickling tank along with the pickling solution, friction is generated between the cleaning ball and the raw material in the process, and because the pickling tank is obliquely arranged, the depths of the liquid surfaces of the pickling solution at the horizontal positions in the pickling tank are different, and the water pressures of the pickling solution are different, so that the shape of the pickling ball is changed due to the change of the water pressure in the pickling tank 1, impurities attached to the surfaces of the raw material particles are polished and carried into the backflow tank and adsorbed in the filter layer, a good primary impurity removal effect is achieved, the washing time of the subsequent washing process is saved, and the improvement of the working efficiency is facilitated.
Drawings
FIG. 1 is a flow chart of acid pickling process of raw material acid pickling for glass production according to the present invention;
FIG. 2 is a schematic structural diagram of example 1 of a pickling method of a raw material for glass production according to the present invention;
FIG. 3 is a schematic structural diagram of example 2 of the acid washing method of a raw material for glass production according to the present invention;
FIG. 4 is a schematic structural diagram of a cleaning ball in example 2 of the acid washing method of a raw material for glass production according to the present invention.
In the figure, 1 a pickling tank, 11 an acid inlet pipe, 12 an acid outlet pipe, 13 a flow baffle plate, 14 a flow baffle, 2 a reflux tank, 21 a filter layer, 22 an adsorption layer, 3 a feeder, 4 an acid liquid recovery storage tank, 5 a circulating pump and 6 a cleaning ball.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Example 1
As shown in the figure 1-2, the acid washing method of the raw materials for producing the glass mainly comprises the following steps:
s1, feeding, namely feeding the raw materials to be pickled into a pickling tank 1 through a feeding machine 3, and sealing the tank opening;
s2, heating, introducing hot steam to heat the pickling tank 1, and keeping the temperature after heating to 60-100 ℃;
s3, adding acid liquor, injecting a proper amount of acid liquor into the pickling tank 1, wherein the liquid level above the acid liquor just exceeds the pipe orifice of the acid outlet pipe 12, and the pickling liquor comprises the following components: 10-15 wt% of hydrochloric acid; 3-8 wt% of hydrofluoric acid; 5-10 wt% of nitric acid;
s4, acid washing and purifying, wherein a circulating pump 5 is started to circulate and reflux the acid liquid in an acid washing tank 1 and a reflux tank 2 for 6-8h, so that the acid liquid and impurities in the raw materials are subjected to sufficient chemical reaction, and the impurities on the surface layer and the shallow layer of the raw materials are separated;
s5, discharging acid liquor, and after impurity removal of the acid liquor is completed, discharging the acid liquor in the acid washing tank into an acid liquor recovery storage tank 4;
s6, washing and discharging, cooling the pickling tank, washing the raw material for 2-3 times by using clean water, and discharging to obtain a purified raw material;
the pickling device comprises a pickling tank 1, a backflow tank 2, a feeding machine 3 and an acid liquor recovery storage tank 4, wherein the feeding machine 3 is installed on the top surface of the pickling tank 1, the pickling tank 1 is communicated with the backflow tank 2 through an acid inlet pipe 11 and an acid outlet pipe 12, the inlet end of the acid inlet pipe 11 is arranged at the bottom of the pickling tank 1, the outlet end of the acid outlet pipe 12 is arranged at the upper end part of the pickling tank 1, a circulating pump 5 is installed on the acid inlet pipe 11, and the acid liquor recovery storage tank 4 is communicated with the pickling tank 1;
the pickling tank 1 is obliquely arranged, the included angle between the central axis and the horizontal plane is 30 degrees, a plurality of flow baffle plates 13 which are arranged at equal intervals are arranged in the pickling tank 1, and the flow baffle plates 13 are respectively arranged on the inner top surface and the inner bottom surface of the pickling tank 1 and are arranged in a staggered manner;
the flow baffle plate 13 is made of corrosion-resistant material, and a plurality of flow baffles 14 are equidistantly installed on the side wall of the flow baffle plate 13, and the flow baffles 14 are parallel to the axial direction of the pickling tank 1.
A filter layer 21 and an adsorption layer 22 are arranged in the reflux tank 2, the filter layer 21 is formed by stacking bluestone particles, and the adsorption layer 22 is made of activated carbon fiber materials.
The working principle of the embodiment is as follows: the method comprises the steps of feeding the raw materials and the pickling solution into a pickling tank 1, heating the raw materials and the pickling solution in a sealed mode to 60-100 ℃, opening a circulating pump 5 to enable the pickling solution to circularly flow back in the pickling tank 1 and a reflux tank 2, enabling the pickling solution to enter and exit the pickling tank 1 in a low-in and high-out mode, enabling the pickling solution to continuously flow among raw material particles, ensuring that the pickling solution and the surfaces of the raw materials are in full contact reaction, enabling the pickling solution and the raw material particles to be in uniform contact, and accelerating the reaction speed of the pickling solution and impurities.
The in-process that the pickle flows, the fender stream board 13 has prolonged the flow path of pickle in pickling tank 1 greatly, guarantees that the pickle can be abundant, even flow in pickling tank 1, prevents to leave the dead angle, further guarantees, need not to use the mode of motor stirring, can realize abundant, the even pickling to the raw materials, avoids secondary pollution's problem, improves the raw materials and removes impurity volume.
When the pickle flows through the reflux tank 2, the filter layer 21 can filter the impurity that the pickle carried in the reflux process, and the chloride ion that generates in the adsorbable pickle of adsorbed layer 22 utilizes the adsorption of active carbon, adsorbs the pore structure of active carbon with chloride ion to no longer adhere to on the raw materials surface, promote the positive of edulcoration reaction in the pickle tank 1 and go on, effectively shorten pickling reaction time, improved pickling efficiency.
Example 2
As shown in fig. 3 to 4, the present embodiment is different from embodiment 1 in that: a plurality of cleaning balls 6 are arranged in the pickling tank 1, and the cleaning balls 6 are made of deformable materials.
In this embodiment, the cleaning ball 6 can flow in pickling tank 1 along with the pickle, the in-process takes place the friction with the raw materials, and because pickling tank 1 slope is placed, the liquid level degree of depth of each horizontal position's pickle in pickling tank 1 differs, then its water pressure is not of uniform size, then pickling ball 6 changes because of the water pressure in pickling tank 1, its shape changes, in its deformation process, can take place extrusion and friction with raw material granule on every side, polish raw material granule surface adhered to impurity and carry to in backflow tank 2, be adsorbed in filter layer 21, play good preliminary edulcoration effect, the flushing time of follow-up washing process has been saved, be favorable to work efficiency's improvement.
The cleaning ball 6 is made of PVC material, a sealing air cavity is arranged in the cleaning ball, elastic deformation can occur under the compression state, the surface of the cleaning ball 6 is provided with snake-shaped grains, the friction between the cleaning ball and the raw material grains is increased, and the cleaning ball can carry impurities to flow along with the pickling solution.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (3)
1. The acid washing method of the raw materials for producing the glass is characterized by mainly comprising the following steps:
s1, feeding, namely feeding the raw materials to be pickled into a pickling tank (1) through a feeding machine (3), and sealing the tank opening;
s2, heating, introducing hot steam to heat the pickling tank (1), and keeping the temperature after heating to 60-100 ℃;
s3, adding acid liquor, injecting a proper amount of acid liquor into the pickling tank (1), wherein the liquid level above the acid liquor just exceeds the pipe orifice of the acid outlet pipe (12), and the pickling liquor comprises the following components: 10-15 wt% of hydrochloric acid; 3-8 wt% of hydrofluoric acid; 5-10 wt% of nitric acid;
s4, acid washing and purifying, wherein a circulating pump (5) is started to circulate and reflux the acid liquid in an acid washing tank (1) and a reflux tank (2) for 6-8h, so that the acid liquid and impurities in the raw materials are subjected to sufficient chemical reaction, and the impurities on the surface layer and the shallow layer of the raw materials are separated;
s5, discharging acid liquor, and after impurity removal of the acid liquor is completed, discharging the acid liquor in the acid washing tank into an acid liquor recovery storage tank (4);
s6, washing and discharging, cooling the pickling tank, washing the raw material for 2-3 times by using clean water, and discharging to obtain a purified raw material;
the glass pickling process also relates to pickling equipment, the pickling equipment comprises a pickling tank (1), a backflow tank (2), a feeding machine (3) and an acid liquor recovery storage tank (4), the feeding machine (3) is installed on the top surface of the pickling tank (1), the pickling tank (1) is communicated with the backflow tank (2) through an acid inlet pipe (11) and an acid outlet pipe (12), the inlet end of the acid inlet pipe (11) is arranged at the bottom of the pickling tank (1), the outlet end of the acid outlet pipe (12) is arranged at the upper end part of the pickling tank (1), a circulating pump (5) is installed on the acid inlet pipe (11), and the acid liquor recovery storage tank (4) is communicated with the pickling tank (1);
the pickling tank (1) is obliquely arranged, the included angle between the central axis and the horizontal plane is 30 degrees, a plurality of flow baffle plates (13) which are arranged at equal intervals are arranged in the pickling tank (1), and the flow baffle plates (13) are respectively arranged on the inner top surface and the inner bottom surface of the pickling tank (1) and are arranged in a staggered manner;
be equipped with filter layer (21) and adsorbed layer (22) in backward flow jar (2), filter layer (21) are piled up by the blue stone son and are formed, adsorbed layer (22) are made by activated carbon fiber material.
2. The method for pickling a raw material for glass production according to claim 1, wherein the flow baffle plate (13) is made of a corrosion-resistant material, and a plurality of flow blocking pieces (14) are equidistantly mounted on a side wall of the flow baffle plate (13), and the flow blocking pieces (14) are parallel to the axial direction of the pickling tank (1).
3. The method for pickling a raw material for glass production according to claim 1, wherein a plurality of cleaning balls (6) are provided in the pickling tank (1), and the cleaning balls (6) are made of a deformable material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010424024.5A CN111635131A (en) | 2020-05-19 | 2020-05-19 | Acid pickling method for raw materials for glass production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010424024.5A CN111635131A (en) | 2020-05-19 | 2020-05-19 | Acid pickling method for raw materials for glass production |
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| Publication Number | Publication Date |
|---|---|
| CN111635131A true CN111635131A (en) | 2020-09-08 |
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| CN202010424024.5A Pending CN111635131A (en) | 2020-05-19 | 2020-05-19 | Acid pickling method for raw materials for glass production |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2088841A (en) * | 1980-10-25 | 1982-06-16 | Heraeus Quarzschmelze | Method for surface cleaning quartz crystall particles or/and apparatus for carrying out this method |
| JP2004174305A (en) * | 2002-11-25 | 2004-06-24 | Sanei Kaihatsu:Kk | Method and apparatus for treating inorganic sludge |
| CN102259870A (en) * | 2011-05-12 | 2011-11-30 | 田辉明 | Purifying and pickling device for high-purity quartz sand |
| CN203140362U (en) * | 2013-02-25 | 2013-08-21 | 泰库尼思科电子（苏州）有限公司 | Separation groove |
| CN108455618A (en) * | 2018-01-19 | 2018-08-28 | 江苏泽龙石英有限公司 | A kind of technique of extensive cycle pickling quartz sand |
| CN109485050A (en) * | 2019-01-08 | 2019-03-19 | 临沂昊泉硅业科技有限公司 | A kind of cycle pickling method for conveniently removing deimpurity glass sand |
-
2020
- 2020-05-19 CN CN202010424024.5A patent/CN111635131A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2088841A (en) * | 1980-10-25 | 1982-06-16 | Heraeus Quarzschmelze | Method for surface cleaning quartz crystall particles or/and apparatus for carrying out this method |
| JP2004174305A (en) * | 2002-11-25 | 2004-06-24 | Sanei Kaihatsu:Kk | Method and apparatus for treating inorganic sludge |
| CN102259870A (en) * | 2011-05-12 | 2011-11-30 | 田辉明 | Purifying and pickling device for high-purity quartz sand |
| CN203140362U (en) * | 2013-02-25 | 2013-08-21 | 泰库尼思科电子（苏州）有限公司 | Separation groove |
| CN108455618A (en) * | 2018-01-19 | 2018-08-28 | 江苏泽龙石英有限公司 | A kind of technique of extensive cycle pickling quartz sand |
| CN109485050A (en) * | 2019-01-08 | 2019-03-19 | 临沂昊泉硅业科技有限公司 | A kind of cycle pickling method for conveniently removing deimpurity glass sand |
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Application publication date: 20200908 |
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