CN106914039A - Rapid precipitation technique after a kind of kaolin slurrying - Google Patents
Rapid precipitation technique after a kind of kaolin slurrying Download PDFInfo
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- CN106914039A CN106914039A CN201710284043.0A CN201710284043A CN106914039A CN 106914039 A CN106914039 A CN 106914039A CN 201710284043 A CN201710284043 A CN 201710284043A CN 106914039 A CN106914039 A CN 106914039A
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- solubility
- kaolin
- slurrying
- polyacrylamide
- flocculant
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
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- Chemical Kinetics & Catalysis (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention provides rapid precipitation technique after a kind of kaolin slurrying, comprise the following steps：(1) mud is added into flocculant by a certain percentage, is imported in first stage precipitation tank after being well mixed；(2) during mud is imported second-level settling pond, three-level sedimentation basin by precipitation successively again after a period of time；The flocculant is mixed by water with white lime, triethanolamine, sodium carboxymethylcellulose, dimethyl diallyl ammonium chloride, polyacrylamide, Sodium Polyacrylate；The first stage precipitation tank, second-level settling pond, the height of three-level sedimentation basin successively decrease successively；Rapid precipitation technique after kaolin slurrying of the present invention, makes the sedimentation time compared with shortening 2 3h before process modification, and concentration easily reaches use requirement；And by setting three-level sedimentation basin, improve the turnover rate of stock tank.
Description
Technical field
Mud manufacture field is washed the present invention relates to kaolin, and in particular to rapid precipitation technique after a kind of kaolin slurrying.
Background technology
Kaolin is a kind of nonmetallic minerals, is a kind of clay and clay rock based on kaolinite race clay mineral.Cause
It is white and fine and smooth, also known as white clouds soil.Gained the name because of Jiangxi Province Jing Dezhen kaolinite village.The pure kaolin of its matter is in pure white thin
Greasy, soft earthy, with physicochemical properties such as good plasticity and fire resistance.Its mineralogical composition it is main by kaolinite, galapectite,
The mineral composition such as hydromica, illite, montmorillonite and quartz, feldspar.Kaolin purposes is quite varied, be mainly used in papermaking,
Ceramics and refractory material, secondly for coating, gum filler, frit for porcelain enamel and white cement raw material, on a small quantity for plastics, paint,
The industrial departments such as pigment, emery wheel, pencil, daily cosmetics, soap, agricultural chemicals, medicine, weaving, oil, chemical industry, building materials, national defence.
In Production of Ceramics operation, wash ratio of the mud in formula and account for 3 one-tenth, and wash initial wash-off concentration in bricklayer's's sequence
Have 8%, do not reach the requirement of concentration 14%.The big mud of washing of consumption takes long, serious restriction production effect by natural subsidence
Rate.Therefore rapid precipitation technique after a kind of kaolin slurrying is researched and developed, shortening is washed the mud sedimentation time, and mud concentration and stock tank are washed in raising
Turnover rate there is important development meaning.
The content of the invention
It is an object of the invention to provide rapid precipitation technique after a kind of kaolin slurrying, the sedimentation time is set to contract compared with before-improvement
Short 2-3h, and concentration easily reaches use requirement；And by setting three-level sedimentation basin, improve the turnover rate of stock tank.
To realize object above, the present invention is achieved by the following technical programs：
Rapid precipitation technique after a kind of kaolin slurrying, comprises the following steps：(1) mud is added flocculation by a certain percentage
Agent (specific addition is determined according to the concentration of mud), imports in first stage precipitation tank after being well mixed；(2) when precipitating one section
Between after again mud is imported into second-level settling pond, three-level sedimentation basin successively；The flocculant by water and white lime, triethanolamine,
Sodium carboxymethylcellulose, dimethyl diallyl ammonium chloride, polyacrylamide, Sodium Polyacrylate are mixed.
Preferably, the first stage precipitation tank, second-level settling pond, the height of three-level sedimentation basin successively decrease successively.
Preferably, the concentration (mass concentration) of the white lime is 1-3%, and the solubility of triethanolamine is 0.1-0.5%, carboxylic
The solubility of sodium carboxymethylcellulose pyce is 0.05-0.3%, and the concentration of dimethyl diallyl ammonium chloride is 0.1-0.3%, polyacrylamide
The solubility of amine is 0.08-0.13%, and the solubility of Sodium Polyacrylate is 0.02-0.08%.
Preferably, the concentration of the white lime is 2.2%, and the solubility of triethanolamine is 0.2%, sodium carboxymethylcellulose
Solubility is 0.18%, and the concentration of dimethyl diallyl ammonium chloride is 0.2%, and the solubility of polyacrylamide is 0.1%, polypropylene
The solubility of sour sodium is 0.04%.
Preferably, the preparation method of the flocculant is：First white lime is added into water, is sequentially added after stirring
Triethanolamine, sodium carboxymethylcellulose, dimethyl diallyl ammonium chloride, polyacrylamide, Sodium Polyacrylate, stir i.e.
.
Preferably, the polyacrylamide is non-ionic polyacrylamide.
The beneficial effects of the invention are as follows：
Rapid precipitation technique after kaolin slurrying of the present invention, by adding the flocculant through specific proportioning, in making mud
Fine particle is quickly condensed into bulk floccule, accelerates precipitation, makes the sedimentation time compared with shortening 2-3h before process modification, and make final
Concentration reaches use requirement.Simultaneously by setting multifeed clarifier, the turnover rate of stock tank can be effectively improved.The present invention can be saved effectively
About production cost, improves resource utilization, it is adaptable to scale application.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, belongs to the scope of protection of the invention.
Embodiment 1：
Rapid precipitation technique after a kind of kaolin slurrying, comprises the following steps：
(1) mud is added into flocculant by a certain percentage, is imported in first stage precipitation tank after being well mixed；(2) one section is precipitated
During mud is imported into second-level settling pond, three-level sedimentation basin successively again after time, wherein first stage precipitation tank, second-level settling pond, three-level
The height of sedimentation basin successively decreases successively.
The preparation method of above-mentioned flocculant is：First white lime is added into water, three ethanol are sequentially added after stirring
Amine, sodium carboxymethylcellulose, dimethyl diallyl ammonium chloride, polyacrylamide, Sodium Polyacrylate, stir and obtain final product；Institute
The concentration of white lime is 2.2% in obtained flocculant, and the solubility of triethanolamine is 0.2%, the solubility of sodium carboxymethylcellulose
It is 0.18%, the concentration of dimethyl diallyl ammonium chloride is 0.2%, the solubility of non-ionic polyacrylamide is 0.1%, is gathered
The solubility of PAA is 0.04%.
Embodiment 2：
Rapid precipitation technique after a kind of kaolin slurrying, comprises the following steps：
(1) mud is added into flocculant by a certain percentage, is imported in first stage precipitation tank after being well mixed；(2) one section is precipitated
During mud is imported into second-level settling pond, three-level sedimentation basin successively again after time, wherein first stage precipitation tank, second-level settling pond, three-level
The height of sedimentation basin successively decreases successively.
The preparation method of above-mentioned flocculant is：First white lime is added into water, three ethanol are sequentially added after stirring
Amine, sodium carboxymethylcellulose, dimethyl diallyl ammonium chloride, polyacrylamide, Sodium Polyacrylate, stir and obtain final product；Institute
The concentration of white lime is 3% in obtained flocculant, and the solubility of triethanolamine is 0.1%, and the solubility of sodium carboxymethylcellulose is
0.3%, the concentration of dimethyl diallyl ammonium chloride is 0.1%, and the solubility of polyacrylamide is 0.09%, Sodium Polyacrylate
Solubility is 0.02%.
Embodiment 3：
Rapid precipitation technique after a kind of kaolin slurrying, comprises the following steps：
(1) mud is added into flocculant by a certain percentage, is imported in first stage precipitation tank after being well mixed；(2) one section is precipitated
During mud is imported into second-level settling pond, three-level sedimentation basin successively again after time, wherein first stage precipitation tank, second-level settling pond, three-level
The height of sedimentation basin successively decreases successively.
The preparation method of above-mentioned flocculant is：First white lime is added into water, three ethanol are sequentially added after stirring
Amine, sodium carboxymethylcellulose, dimethyl diallyl ammonium chloride, polyacrylamide, Sodium Polyacrylate, stir and obtain final product；Institute
The concentration of white lime is 2% in obtained flocculant, and the solubility of triethanolamine is 0.5%, and the solubility of sodium carboxymethylcellulose is
0.05%, the concentration of dimethyl diallyl ammonium chloride is 0.3%, and the solubility of non-ionic polyacrylamide is 0.13%, is gathered
The solubility of PAA is 0.08%.
Embodiment 4：
Rapid precipitation technique after a kind of kaolin slurrying, comprises the following steps：
(1) mud is added into flocculant by a certain percentage, is imported in first stage precipitation tank after being well mixed；(2) one section is precipitated
During mud is imported into second-level settling pond, three-level sedimentation basin successively again after time, wherein first stage precipitation tank, second-level settling pond, three-level
The height of sedimentation basin successively decreases successively.
The preparation method of above-mentioned flocculant is：First white lime is added into water, three ethanol are sequentially added after stirring
Amine, sodium carboxymethylcellulose, dimethyl diallyl ammonium chloride, polyacrylamide, Sodium Polyacrylate, stir and obtain final product；Institute
The concentration of white lime is 1% in obtained flocculant, and the solubility of triethanolamine is 0.35%, and the solubility of sodium carboxymethylcellulose is
0.15%, the concentration of dimethyl diallyl ammonium chloride is 0.3%, and the solubility of polyacrylamide is 0.08%, Sodium Polyacrylate
Solubility be 0.05%.
Embodiment 5：
Rapid precipitation technique after a kind of kaolin slurrying, comprises the following steps：
(1) mud is added into flocculant by a certain percentage, is imported in first stage precipitation tank after being well mixed；(2) one section is precipitated
During mud is imported into second-level settling pond, three-level sedimentation basin successively again after time, wherein first stage precipitation tank, second-level settling pond, three-level
The height of sedimentation basin successively decreases successively.
The preparation method of above-mentioned flocculant is：First white lime is added into water, three ethanol are sequentially added after stirring
Amine, sodium carboxymethylcellulose, dimethyl diallyl ammonium chloride, polyacrylamide, Sodium Polyacrylate, stir and obtain final product；Institute
The concentration of white lime is 3% in obtained flocculant, and the solubility of triethanolamine is 0.1%, and the solubility of sodium carboxymethylcellulose is
0.25%, the concentration of dimethyl diallyl ammonium chloride is 0.1%, and the solubility of non-ionic polyacrylamide is 0.1%, poly- third
The solubility of olefin(e) acid sodium is 0.06%.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention has been described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent to which part technical characteristic；And these modification or
Replace, do not make the spirit and scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.
Claims (6)
1. rapid precipitation technique after a kind of kaolin slurrying, it is characterised in that：Comprise the following steps：(1) by mud by certain ratio
Example adds flocculant, is imported in first stage precipitation tank after being well mixed；(2) mud is imported two grades successively again after precipitation a period of time
In sedimentation basin, three-level sedimentation basin；The flocculant is by water and white lime, triethanolamine, sodium carboxymethylcellulose, dimethyl diene
Propyl ammonium chloride, polyacrylamide, Sodium Polyacrylate are mixed.
2. rapid precipitation technique after kaolin slurrying according to claim 1, it is characterised in that the first stage precipitation tank,
Second-level settling pond, the height of three-level sedimentation basin successively decrease successively.
3. rapid precipitation technique after kaolin slurrying according to claim 1, it is characterised in that：The concentration of the white lime
It is 1-3%, the solubility of triethanolamine is 0.1-0.5%, and the solubility of sodium carboxymethylcellulose is 0.05-0.3%, dimethyl diene
The concentration of propyl ammonium chloride is 0.1-0.3%, and the solubility of polyacrylamide is 0.08-0.13%, and the solubility of Sodium Polyacrylate is
0.02-0.08%.
4. rapid precipitation technique after kaolin slurrying according to claim 4, it is characterised in that the concentration of the white lime
It is 2.2%, the solubility of triethanolamine is 0.2%, the solubility of sodium carboxymethylcellulose is 0.18%, dimethyl diallyl chlorination
The concentration of ammonium is 0.2%, and the solubility of polyacrylamide is 0.1%, and the solubility of Sodium Polyacrylate is 0.04%.
5. rapid precipitation technique after kaolin slurrying according to claim 1, it is characterised in that the preparation of the flocculant
Method is：First white lime is added into water, triethanolamine, sodium carboxymethylcellulose, dimethyl are sequentially added after stirring
Diallyl ammonium chloride, polyacrylamide, Sodium Polyacrylate, stir and obtain final product.
6. rapid precipitation technique after the kaolin slurrying according to claim any one of 1-5, it is characterised in that described poly- third
Acrylamide is non-ionic polyacrylamide.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710284043.0A CN106914039A (en) | 2017-04-26 | 2017-04-26 | Rapid precipitation technique after a kind of kaolin slurrying |
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| CN201710284043.0A CN106914039A (en) | 2017-04-26 | 2017-04-26 | Rapid precipitation technique after a kind of kaolin slurrying |
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| CN106914039A true CN106914039A (en) | 2017-07-04 |
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| CN201710284043.0A Pending CN106914039A (en) | 2017-04-26 | 2017-04-26 | Rapid precipitation technique after a kind of kaolin slurrying |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113413643A (en) * | 2021-07-26 | 2021-09-21 | 中建西部建设建材科学研究院有限公司 | Efficient settling method for waste slurry of concrete mixing plant |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1125193A (en) * | 1994-12-20 | 1996-06-26 | 陕西省科联新技术开发中心 | Production process for synthesizing high whiteness 4A zeolite using kaolin |
| US5938833A (en) * | 1996-09-18 | 1999-08-17 | Engelhard Corporation | Chemical process for fractionating mineral particles based on particle size |
| CN204752410U (en) * | 2015-06-19 | 2015-11-11 | 揭阳市揭东易成陶瓷实业有限公司 | System of recycling is retrieved in useless mud, waste water separation |
-
2017
- 2017-04-26 CN CN201710284043.0A patent/CN106914039A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1125193A (en) * | 1994-12-20 | 1996-06-26 | 陕西省科联新技术开发中心 | Production process for synthesizing high whiteness 4A zeolite using kaolin |
| US5938833A (en) * | 1996-09-18 | 1999-08-17 | Engelhard Corporation | Chemical process for fractionating mineral particles based on particle size |
| CN204752410U (en) * | 2015-06-19 | 2015-11-11 | 揭阳市揭东易成陶瓷实业有限公司 | System of recycling is retrieved in useless mud, waste water separation |
Non-Patent Citations (2)
| Title |
|---|
| 郑秀华主编: "《膨润土应用技术》", 30 September 2001, 中国地质大学出版社 * |
| 陈复主编: "《水处理技术及药剂大全》", 31 October 2000, 陈复主编 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113413643A (en) * | 2021-07-26 | 2021-09-21 | 中建西部建设建材科学研究院有限公司 | Efficient settling method for waste slurry of concrete mixing plant |
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Application publication date: 20170704 |
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