CN102107937A - Coal washing water treatment agent - Google Patents
Coal washing water treatment agent Download PDFInfo
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- CN102107937A CN102107937A CN 201110002284 CN201110002284A CN102107937A CN 102107937 A CN102107937 A CN 102107937A CN 201110002284 CN201110002284 CN 201110002284 CN 201110002284 A CN201110002284 A CN 201110002284A CN 102107937 A CN102107937 A CN 102107937A
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- washing water
- coal washing
- polyacrylamide
- treating agent
- coal
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Abstract
The invention provides a coal washing water treatment agent. The coal washing water treatment agent comprises the following main components in part by mass: 1 to 5 parts of polyacrylamide, 5 to 15 parts of magnesium chloride, 1 to 10 parts of calcium chloride and 1 to 5 parts of sodium sulfate. The coal washing water treatment agent can be efficiently used for treating coal washing water.
Description
Technical field
The present invention relates to a kind of water conditioner, especially a kind of coal washing water treating agent.
Background technology
Coal washing water after the coal separation of colliery is a kind of sewage that contains superfine coal dust and this class suspended substance of mineral powder granular, and for reaching state's service water and environmental protection requirement, coal separation water must reach middle water reuse after treatment.The characteristics of coal separation water are the composition complexity, free settling not, need through staticly settle for a long time just can reach moisture content of coal from effect, make that so in process of production coal washing efficient is extremely low and the cost input is huge.
For can reach moisture content of coal from effect, general method is to adopt polyacrylamide to carry out flocculation sediment.Polyacrylamide is a kind of flocculation agent efficiently, and it is the different electrical fine particle in the electric charge absorption coal washing water of utilization itself on the one hand, and its reticulated structure of forming in water can be caught a large amount of fine particles on the other hand, reaches the purpose of purifying waste water.But, the shortcoming of polyacrylamide is that its molecular chain is long, reticulated structure is too closely knit, very fast with the sewage reaction after the coal washing, make the mud of post precipitation agglomerating and closely be difficult for stirring diffusing, and press more real and more real because of the gravity reason, long-pending more thick more, be not easy to mud rake running in the existing factory of the coal washing concentration basin, the rake accident very easily takes place to press.Moreover the mud after the processing of use polyacrylamide, because of the polyacrylamide amine molecule reticulates structure, moisture is wrapped in wherein in the walk, forms stable mud mixture.Be unfavorable for mud-water separation in the press filtration operation, directly influence the output of the dried mud cake of press filtration.The characteristics that this just flocculation agent efficiently has make its range of application in the coal washing water treatment limited.
Summary of the invention
The purpose of this invention is to provide a kind of efficient coal washing water treating agent that can be used in the coal washing water treatment.
Coal washing water treating agent of the present invention, its main component and mass fraction are: 1～5 part in 1～5 part of polyacrylamide, 5～15 parts in magnesium chloride, 1～10 part in calcium chloride and sodium sulfate.
Above-mentioned polyacrylamide can be anionic, cationic, non-ionic type or amphoteric ionic polyacrylamide.
The order number of above-mentioned polyacrylamide is preferably 30～100 orders, more preferably 80～90 orders.The granularity of above-mentioned magnesium chloride, calcium chloride, sodium sulfate is preferably 0.2～2.0 millimeter, more preferably 0.3～0.6 millimeter.
After in polyacrylamide, adding magnesium chloride, calcium chloride and sodium sulfate, can the successful coal washing scene that is applied to.Magnesium chloride is a kind of water soluble inorganic salt, then a kind of flocculation agent efficiently for coal washing water, particulate in the coal washing water electrically is mainly the anionic charge particle, magnesium ion has two positive charges, and bigger ionic radius arranged, have collision probability very big and fine particle, play good charge neutrality cohesion, make the cohesion of coal washing aqueous suspension and elimination of colloid stability.Calcium chloride is a kind of water soluble inorganic salt, is slight alkalinity after it is water-soluble, and the slightly acidic coal washing water that can neutralize plays a role coal washing water treating agent better.Calcium chloride can form small calcium salt insolubles after water-soluble in addition, and the colloidal solid in the planar water sinks, and the moisture content of coal that can quicken coal washing water clarifies the clear water layer from process more, can improve the effect of reuse water coal washing.Sodium sulfate is a kind of small molecules inorganic salt, long chain molecule to polyacrylamide has shearing action, make it form the short compound of molecular chain, polyacrylamide after the chain rupture is mutually exclusive because all have identical charges, make the sediment after the flocculation loose evenly, non-agglomerate is difficult for hardening, and the output of the dried mud cake of press filtration is improved.
Embodiment
Be described more specifically coal washing water treating agent of the present invention below by embodiment.
Embodiment 1
Coal washing water treating agent is that the order number is that 30～100 purpose anion-polyacrylamides and granularity are 0.5～1.0 millimeter the mixed uniformly mixtures of magnesium chloride, calcium chloride, sodium sulfate, and each components in proportions is a polyacrylamide in the coal washing water treating agent: magnesium chloride: calcium chloride: sodium sulfate=1: 5: 2: 1.
Embodiment 2
Coal washing water treating agent is that the order number is that 50～90 purpose non-ionic polyacrylamides and granularity are 0.4～1.6 millimeter the mixed uniformly mixtures of magnesium chloride, calcium chloride, sodium sulfate, and each components in proportions is a polyacrylamide in the coal washing water treating agent: magnesium chloride: calcium chloride: sodium sulfate=2: 11: 6: 3.
Embodiment 3
Coal washing water treating agent is that the order number is that 40～60 purpose amphoteric ionic polyacrylamides and granularity are 0.2～1.0 millimeter the mixed uniformly mixtures of magnesium chloride, calcium chloride, sodium sulfate, and each components in proportions is a polyacrylamide in the coal washing water treating agent: magnesium chloride: calcium chloride: sodium sulfate=3.4: 8: 9: 2.
Respectively the coal washing water treating agent of preparation in the foregoing description 1～3 is used for the processing of coal washing water, finds that dirty coal washing water obviously becomes clear, form upper strata clear water and lower sediment, have extraordinary coal washing water treatment effect.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.One skilled in the art will appreciate that protection scope of the present invention is as the criterion with appending claims.
Claims (6)
1. coal washing water treating agent, its main component and mass fraction are: 1～5 part in 1～5 part of polyacrylamide, 5～15 parts in magnesium chloride, 1～10 part in calcium chloride and sodium sulfate.
2. coal washing water treating agent according to claim 1 is characterized in that, described polyacrylamide is anionic, cationic, non-ionic type or amphoteric ionic polyacrylamide.
3. coal washing water treating agent according to claim 1 is characterized in that, the order number of described polyacrylamide is 30～100 orders.
4. coal washing water treating agent according to claim 3 is characterized in that, the order number of described polyacrylamide is 80～90 orders.
5. coal washing water treating agent according to claim 1 is characterized in that, the granularity of described magnesium chloride, calcium chloride, sodium sulfate is respectively 0.2～2.0 millimeter.
6. coal washing water treating agent according to claim 5 is characterized in that, the granularity of described magnesium chloride, calcium chloride, sodium sulfate is respectively 0.3～0.6 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110002284 CN102107937A (en) | 2011-01-07 | 2011-01-07 | Coal washing water treatment agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110002284 CN102107937A (en) | 2011-01-07 | 2011-01-07 | Coal washing water treatment agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102107937A true CN102107937A (en) | 2011-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 201110002284 Pending CN102107937A (en) | 2011-01-07 | 2011-01-07 | Coal washing water treatment agent |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103657163A (en) * | 2012-08-30 | 2014-03-26 | 张国胜 | Instant-type slime water separating agent as well as preparation method thereof |
| CN103803689A (en) * | 2014-02-21 | 2014-05-21 | 浙江省柑桔研究所 | Low-molecular-weight pectin composite flocculant and online extraction process thereof |
| CN105129946A (en) * | 2015-09-14 | 2015-12-09 | 镇江华立煤质制样设备有限公司 | Efficient coal-washing wastewater treatment agent |
| CN109809506A (en) * | 2019-01-31 | 2019-05-28 | 徐兴礼 | A kind of composite acrylic acid polymer |
| CN110204087A (en) * | 2016-02-18 | 2019-09-06 | 长江勘测规划设计研究有限责任公司 | The processing method of high concentration suspended matter waste water |
| CN110386651A (en) * | 2018-04-20 | 2019-10-29 | 上海四奥化工有限公司 | Tailing polyacrylamide flocculant and preparation method thereof |
| CN110386650A (en) * | 2018-04-20 | 2019-10-29 | 上海四奥化工有限公司 | Coal washing polyacrylamide flocculant and preparation method thereof |
| CN114853206A (en) * | 2022-04-11 | 2022-08-05 | 山东省科学院能源研究所 | Method for promoting coagulation precipitation of anaerobic fermentation biogas slurry of livestock and poultry manure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101045571A (en) * | 2007-04-28 | 2007-10-03 | 柴方战 | Finishing agent for coal washing water |
-
2011
- 2011-01-07 CN CN 201110002284 patent/CN102107937A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101045571A (en) * | 2007-04-28 | 2007-10-03 | 柴方战 | Finishing agent for coal washing water |
Non-Patent Citations (1)
| Title |
|---|
| 《广东化工》 20091231 张志凡等 絮凝法处理洗煤废水的实验研究 70-72 1-6 第36卷, 第2期 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103657163A (en) * | 2012-08-30 | 2014-03-26 | 张国胜 | Instant-type slime water separating agent as well as preparation method thereof |
| CN103803689A (en) * | 2014-02-21 | 2014-05-21 | 浙江省柑桔研究所 | Low-molecular-weight pectin composite flocculant and online extraction process thereof |
| CN105129946A (en) * | 2015-09-14 | 2015-12-09 | 镇江华立煤质制样设备有限公司 | Efficient coal-washing wastewater treatment agent |
| CN110204087A (en) * | 2016-02-18 | 2019-09-06 | 长江勘测规划设计研究有限责任公司 | The processing method of high concentration suspended matter waste water |
| CN110386651A (en) * | 2018-04-20 | 2019-10-29 | 上海四奥化工有限公司 | Tailing polyacrylamide flocculant and preparation method thereof |
| CN110386650A (en) * | 2018-04-20 | 2019-10-29 | 上海四奥化工有限公司 | Coal washing polyacrylamide flocculant and preparation method thereof |
| CN110386651B (en) * | 2018-04-20 | 2022-06-28 | 上海四奥化工有限公司 | Polyacrylamide flocculant for tailings and preparation method thereof |
| CN109809506A (en) * | 2019-01-31 | 2019-05-28 | 徐兴礼 | A kind of composite acrylic acid polymer |
| CN114853206A (en) * | 2022-04-11 | 2022-08-05 | 山东省科学院能源研究所 | Method for promoting coagulation precipitation of anaerobic fermentation biogas slurry of livestock and poultry manure |
| CN114853206B (en) * | 2022-04-11 | 2023-02-21 | 山东省科学院能源研究所 | Method for promoting coagulation precipitation of anaerobic fermentation biogas slurry of livestock and poultry manure |
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Application publication date: 20110629 |