CN101041493A - Coal washing water treating agent and preparation method - Google Patents
Coal washing water treating agent and preparation method Download PDFInfo
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- CN101041493A CN101041493A CN 200710010530 CN200710010530A CN101041493A CN 101041493 A CN101041493 A CN 101041493A CN 200710010530 CN200710010530 CN 200710010530 CN 200710010530 A CN200710010530 A CN 200710010530A CN 101041493 A CN101041493 A CN 101041493A
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- polyacrylamide
- magnesium chloride
- washing water
- coal washing
- water treating
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention disclose washing coal water and preparing method, which comprises the following steps: allocating magnesium chloride with grain size at 0.2-2.0 millimeter and moisture capacity at 4%-15% and polyacrylamide with fineness at 40-100 order; spreading polyacrylamide on magnesium chloride; stirring evenly.
Description
Technical field
The present invention relates to composition of a kind of coal washing water treating agent, particularly a kind of coal washing water treating agent and preparation method thereof.
Background technology
Contain a large amount of suspended substances in the coal washing water after the coal separation, suspended substance is particles such as superfine coal dust, breeze, and coal washing water needs treated isolating just can reach emission standard behind the suspended substance or recycle.Suspended substance in the coal washing water is superfine particle, is difficult to settle down, and needs when handling coal washing water to add treatment agent in coal washing water, and superfine particle flocculation is precipitated, and just can isolate suspended substance.In the treatment agent, polyacrylamide is a kind of efficient coal washing water treating agent, when handling coal washing water, polyacrylamide will with magnesium chloride and usefulness, polyacrylamide is an anion-polyacrylamide, magnesium chloride is the halogen sheet.In the prior art, polyacrylamide and magnesium chloride be respectively in dissolving vessel with after the water dissolution respectively quantitatively stream be added in the mobile coal washing water.In the coal washing water treating agent of polyacrylamide and magnesium chloride and usefulness, magnesium chloride is a kind of water soluble inorganic salt, and dissolution rate is very fast in the water in dissolving vessel; Polyacrylamide is a kind of macromolecular compound that can be water-soluble, high molecular molecular weight is bigger, the state that gathers of molecule is the random coil structure, when polyacrylamide dissolves in water, the molecular grouping swelling of random coil structure before this, the polyacrylamide amine molecule could be diffused in the water the molecular grouping after swelling then, generates polyacrylamide solution, and the dissolution rate in the water of polyacrylamide in dissolving vessel is very slow; In addition, dissolution rate and the fineness of the polyacrylamide relation of polyacrylamide in water is bigger, the more little dissolution rate in water of the particle of polyacrylamide is fast more, as fineness be the dissolution rate of 40～100 purpose polyacrylamides in water will be widely be polyacrylamide about 10 orders faster than fineness, but when the particle of polyacrylamide is too tiny, tiny polyacrylamide particle can gather agglomerating because of capillary effect after putting into water, gather agglomerating polyacrylamide and more be difficult to be dissolved in water, so the particle as the polyacrylamide of water conditioner in the prior art is not very little, can not gather agglomerating though particle is put into water because of capillary effect, but particle also makes the dissolution rate of polyacrylamide in water slower greatly, because the dissolution rate of polyacrylamide in water is slower, in the coal washing water treatment in order to prepare polyacrylamide solution, just need huger polyacrylamide dissolution equipment, if the polyacrylamide amine solvent is bad, the swollen polyacrylamide can lose along with the coal washing current, expensive polyacrylamide is wasted in vain, and the polyacrylamide of heavy-gravity colloidal is also made becoming isolated suspended substance filtration difficulty after the swelling; Have, the polyacrylamide particle is the easy moisture absorption in air again, and the polyacrylamide flowability of the moisture absorption is bad, and influence interpolation metering aborning in order to keep the polyacrylamide particle drying, also will have pair polyacrylamide particle to apply the equipment of dry air.For polyacrylamide fully being dissolved and keeping the polyacrylamide particle drying all to make the investment of coal washing water treating equipment bigger.
Summary of the invention
The objective of the invention is in order to overcome above-mentioned deficiency, propose less a kind of coal washing water treating agent of dissolution rate investment very fast, that make the coal washing water treating equipment and preparation method thereof.
The present invention is achieved using the following method.
This coal washing water treating agent is to be that 40～100 purpose polyacrylamides and granularity are that 0.2～2.0 millimeter, water content are 4%～15% the mixed uniformly mixtures of magnesium chloride by fineness, in the coal washing water treating agent, in the magnesium chloride in clean magnesium chloride compound and the polyacrylamide only the weight ratio of polyacrylamide amine compound be 1～3.
The preparation method of above-mentioned coal washing water treating agent has the following steps:
1, getting granularity respectively is that 0.2～2.0 millimeter, water content are that 4%～15% magnesium chloride and fineness are 40～100 purpose polyacrylamides;
2, allowing in the magnesium chloride in the clean magnesium chloride compound and polyacrylamide only, the weight ratio of polyacrylamide amine compound is 1～3;
3, above-mentioned polyacrylamide is spread on the above-mentioned magnesium chloride, makes polyacrylamide and magnesium chloride pre-composition, spreading is even as much as possible during spreading;
4, polyacrylamide and magnesium chloride pre-composition are stirred.
The granularity of the magnesium chloride among the present invention is 0.2～2.0 millimeter; water content is 4%～15%; the fineness of polyacrylamide is 40～100 orders; when magnesium chloride mixes with polyacrylamide; tiny polyacrylamide particle can not gather agglomerating because of surface tension; can mix with magnesium chloride granules at an easy rate; after magnesium chloride granules and polyacrylamide particle mix; tiny polyacrylamide particle can be adhered on the magnesium chloride granules because of the water on magnesium chloride granules surface; and then the moisture on absorption magnesium chloride granules surface; tiny polyacrylamide particle meeting swelling; in magnesium chloride granules and polyacrylamide particle blended process; magnesium chloride also can absorb airborne moisture; water content is increased; storage before after preparation of the present invention and to the scene, using; between the delivery period, tiny polyacrylamide particle can have time enough fully to suction moisture, swelling fully.During use, behind the dissolving vessel of putting into water of the present invention, polyacrylamide particle among the present invention is because very tiny and swelling fully, so can be dispersed in the water soon and be dissolved in the water, generate polyacrylamide solution, magnesium chloride is because easily molten and be dissolved in simultaneously in the water, and the polyacrylamide of generation and magnesium chloride brine are used to handle coal washing water.
Polyacrylamide particle among the present invention is because very tinyly disperseed to be adsorbed on the aqueous magnesium chloride granules and swelling fully, so the dissolution rate in water is very fast, in the coal washing water treatment, do not need huge polyacrylamide dissolution equipment, also need not apply the equipment of dry air, make the investment of coal washing water treating equipment less.
Below in conjunction with embodiment, the present invention is further described.
Embodiment
Polyacrylamide can be anion-polyacrylamide, cationic-type polyacrylamide, non-ionic polyacrylamide or amphoteric ionic polyacrylamide in the following embodiments, and the detailed catalogue of polyacrylamide is 40～100 orders; Magnesium chloride can be that granularity is 0.2～2.0 millimeter, and water content is that 4%～15% Magnesium Chloride Anhydrous or halogen sheet also can be the white magnesium chlorides by GB GB 8453-87 standard production.
Embodiment 1
Coal washing water treating agent is that detailed catalogue is 40～100 purpose anion-polyacrylamides, cationic-type polyacrylamide, non-ionic polyacrylamide or amphoteric ionic polyacrylamide and the mixed uniformly mixture of white magnesium chloride, in the coal washing water treating agent, in the white magnesium chloride in contained clean magnesium chloride compound and the polyacrylamide weight ratio of contained clean polyacrylamide amine compound be 1.5.
Embodiment 2
Coal washing water treating agent is that detailed catalogue is that 40～100 purpose anion-polyacrylamides, cationic-type polyacrylamide, non-ionic polyacrylamide or amphoteric ionic polyacrylamide and granularity are that 0.2～2.0 millimeter, water content are 4%～15% halogen sheet uniform particles blended mixtures, in the coal washing water treating agent, in the halogen sheet particle in contained clean magnesium chloride compound and the polyacrylamide weight ratio of contained clean polyacrylamide amine compound be 2.0.
Embodiment 3
Coal washing water treating agent is that detailed catalogue is that 40～100 purpose anion-polyacrylamides, cationic-type polyacrylamide, non-ionic polyacrylamide or amphoteric ionic polyacrylamide and granularity are that 0.2～2.0 millimeter, water content are 4%～15% Magnesium Chloride Anhydrous uniform particles blended mixtures, in the coal washing water treating agent, in the Magnesium Chloride Anhydrous in contained clean magnesium chloride compound and the polyacrylamide weight ratio of contained clean polyacrylamide amine compound be 2.5.
Embodiment 4
The preparation method of above-mentioned coal washing water treating agent is:
1, extracting waste magnesium chloride and detailed catalogue are 40～100 purpose anion-polyacrylamides, cationic-type polyacrylamide, non-ionic polyacrylamide or amphoteric ionic polyacrylamide respectively;
2, allow in the white magnesium chloride weight ratio of contained clean polyacrylamide amine compound is 1.7 in the contained clean magnesium chloride compound and polyacrylamide;
3, polyacrylamide is spread on the white magnesium chloride, makes polyacrylamide and white magnesium chloride pre-composition, spreading is even as much as possible during spreading;
4, polyacrylamide and white magnesium chloride pre-composition are stirred.
Embodiment 5
The preparation method of coal washing water treating agent is:
1, getting granularity respectively is that 0.2～2.0 millimeter, water content are that 4%～15% halogen sheet and detailed catalogue are 40～100 purpose anion-polyacrylamides, cationic-type polyacrylamide, non-ionic polyacrylamide or amphoteric ionic polyacrylamide;
2, allow in the halogen sheet particle weight ratio of contained clean polyacrylamide amine compound is 2.3 in the contained clean magnesium chloride compound and polyacrylamide;
3, polyacrylamide is spread on the halogen sheet particle, makes polyacrylamide and halogen sheet particle pre-composition, spreading is even as much as possible during spreading;
4, polyacrylamide and halogen sheet particle pre-composition are stirred.
Embodiment 6
The preparation method of coal washing water treating agent is:
1, getting granularity respectively is that 0.2～2.0 millimeter, water content are that 4%～15% Magnesium Chloride Anhydrous and detailed catalogue are 40～100 purpose anion-polyacrylamides, cationic-type polyacrylamide, non-ionic polyacrylamide or amphoteric ionic polyacrylamide;
2, allow in the Magnesium Chloride Anhydrous weight ratio of contained clean polyacrylamide amine compound is 2.7 in the contained clean magnesium chloride compound and polyacrylamide;
3, polyacrylamide is spread on the anhydrous chlorides of rase magnesium granules, makes polyacrylamide and anhydrous chlorides of rase magnesium granules pre-composition, spreading is even as much as possible during spreading;
4, polyacrylamide and anhydrous chlorides of rase magnesium granules pre-composition are stirred.
Claims (10)
1. coal washing water treating agent, it is characterized in that: be to be that 40～100 purpose polyacrylamides and granularity are that 0.2～2.0 millimeter, water content are 4%～15% the mixed uniformly mixtures of magnesium chloride by fineness, in the coal washing water treating agent, in the magnesium chloride in clean magnesium chloride compound and the polyacrylamide only the weight ratio of polyacrylamide amine compound be 1～3.
2. by the described coal washing water treating agent of claim 1, it is characterized in that: described polyacrylamide is anion-polyacrylamide, cationic-type polyacrylamide, non-ionic polyacrylamide or amphoteric ionic polyacrylamide.
3. by claim 1 or 2 described coal washing water treating agents, it is characterized in that: described magnesium chloride is Magnesium Chloride Anhydrous, halogen sheet or white magnesium chloride.
4. by claim 1 or 2 described coal washing water treating agents, it is characterized in that: in the described magnesium chloride in clean magnesium chloride compound and the polyacrylamide only the weight ratio of polyacrylamide amine compound be 1.5,2.0 or 2.5.
5. by the described coal washing water treating agent of claim 3, it is characterized in that: in the described magnesium chloride in clean magnesium chloride compound and the polyacrylamide only the weight ratio of polyacrylamide amine compound be 1.5,2.0 or 2.5.
6. press the described coal washing water treating agent preparation method of claim 1 for one kind, it is characterized in that: have the following steps:
(1) getting granularity respectively is that 0.2～2.0 millimeter, water content are that 4%～15% magnesium chloride and fineness are 40～100 purpose polyacrylamides;
(2) allowing in the magnesium chloride in the clean magnesium chloride compound and polyacrylamide only, the weight ratio of polyacrylamide amine compound is 1～3;
(3) above-mentioned polyacrylamide is spread on the above-mentioned magnesium chloride, makes polyacrylamide and magnesium chloride pre-composition, spreading is even as much as possible during spreading;
(4) polyacrylamide and magnesium chloride pre-composition are stirred.
7. by the described coal washing water treating agent preparation method of claim 6, it is characterized in that: described polyacrylamide is anion-polyacrylamide, cationic-type polyacrylamide, non-ionic polyacrylamide or amphoteric ionic polyacrylamide.
8. by claim 6 or 7 described coal washing water treating agent preparation methods, it is characterized in that: described magnesium chloride is Magnesium Chloride Anhydrous, halogen sheet or white magnesium chloride.
9. by claim 6 or 7 described coal washing water treating agent preparation methods, it is characterized in that: in the described magnesium chloride in clean magnesium chloride compound and the polyacrylamide only the weight ratio of polyacrylamide amine compound be 1.7,2.3 or 2.7.
10. by the described coal washing water treating agent preparation method of claim 8, it is characterized in that: in the described magnesium chloride in clean magnesium chloride compound and the polyacrylamide only the weight ratio of polyacrylamide amine compound be 1.7,2.3 or 2.7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100105304A CN100462125C (en) | 2007-03-05 | 2007-03-05 | Coal washing water treating agent and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100105304A CN100462125C (en) | 2007-03-05 | 2007-03-05 | Coal washing water treating agent and preparation method |
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| CN101041493A true CN101041493A (en) | 2007-09-26 |
| CN100462125C CN100462125C (en) | 2009-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100105304A Expired - Fee Related CN100462125C (en) | 2007-03-05 | 2007-03-05 | Coal washing water treating agent and preparation method |
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| CN (1) | CN100462125C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992464A (en) * | 2012-12-06 | 2013-03-27 | 首钢总公司 | Disposal method for high-salinity wastewater and waste incineration fly ash |
| CN103657163A (en) * | 2012-08-30 | 2014-03-26 | 张国胜 | Instant-type slime water separating agent as well as preparation method thereof |
| CN107999268A (en) * | 2017-12-20 | 2018-05-08 | 安徽摩诃环保科技有限公司 | A kind of coal cleaning process of desulfurization |
| CN110194516A (en) * | 2019-06-19 | 2019-09-03 | 重庆长能环境科技有限公司 | It is a kind of handle black water flocculant and its application and slime water treatment method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU947075A1 (en) * | 1980-11-26 | 1982-07-30 | Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Угольный Институт | Process for purifying effluents from coal concentration plants |
| CN1048698C (en) * | 1990-11-10 | 2000-01-26 | 柳生 | Compound water purifying agent and making method as well as application thereof |
| CN1343631A (en) * | 2000-09-20 | 2002-04-10 | 吴兴久 | Cleaner for industrial sewage |
| CN1406877A (en) * | 2001-09-05 | 2003-04-02 | 武汉墨金经济发展有限公司 | Water purifying agent |
-
2007
- 2007-03-05 CN CNB2007100105304A patent/CN100462125C/en not_active Expired - Fee Related
Cited By (5)
| 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 |
| CN102992464A (en) * | 2012-12-06 | 2013-03-27 | 首钢总公司 | Disposal method for high-salinity wastewater and waste incineration fly ash |
| CN107999268A (en) * | 2017-12-20 | 2018-05-08 | 安徽摩诃环保科技有限公司 | A kind of coal cleaning process of desulfurization |
| CN107999268B (en) * | 2017-12-20 | 2020-01-07 | 安徽摩诃环保科技有限公司 | Desulfurization coal washing process |
| CN110194516A (en) * | 2019-06-19 | 2019-09-03 | 重庆长能环境科技有限公司 | It is a kind of handle black water flocculant and its application and slime water treatment method |
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| Publication number | Publication date |
|---|---|
| CN100462125C (en) | 2009-02-18 |
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Granted publication date: 20090218 Termination date: 20120305 |