CN1091393A - Method with Water Quenching Slag or flying dust production silicic acid based flocculating agent - Google Patents
Method with Water Quenching Slag or flying dust production silicic acid based flocculating agent Download PDFInfo
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- CN1091393A CN1091393A CN 94110019 CN94110019A CN1091393A CN 1091393 A CN1091393 A CN 1091393A CN 94110019 CN94110019 CN 94110019 CN 94110019 A CN94110019 A CN 94110019A CN 1091393 A CN1091393 A CN 1091393A
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- flying dust
- water quenching
- quenching slag
- water
- silicic acid
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Abstract
A kind of Water Quenching Slag of power station vertical cyclone furnace discharge or method that flying dust is produced the silicic acid based flocculating agent utilized.It is characterized in that: the bunker coal that mixes a certain amount of Wingdale, rhombspar, magnesium-containing ore and phosphate-containing ore is burnt in the power station vertical cyclone furnace, Water Quenching Slag that its fusion is discharged and flying dust or their mixture and hydrochloric acid, sulfuric acid or their nitration mixture carry out solubilizing reaction, filter to make liquid flocculant.Be used for the processing of water up and down, can condense effectively and remove the various mishmashes that contain in the water, have extraction, polymerization, agglomerative triple role, technology is simple, and cost is low, and good purification is easy to promote.
Description
The present invention relates to a kind of method of producing the silicic acid based flocculating agent, the particularly a kind of Water Quenching Slag of power station vertical cyclone furnace discharge or method that flying dust is produced the silicic acid based flocculating agent utilized.
The flocculation agent that existing water treatment is used mainly contains: aluminium based flocculating agent and iron-based flocculating agent and polymeric flocculant etc.Wherein the aluminium based flocculating agent is as aggegation effect that Tai-Ace S 150, polymerize aluminum chloride mainly utilize the oxyhydroxide of aluminium to generate, it is effective when the pH value for the treatment of water is near neutral, but when handling sour water or strong lye, need mediate the pH value of water earlier, cumbersome and to handle the dehydration property of back mud also bad.In addition, iron-based flocculating agent is the same with the aluminium based flocculating agent, can only utilize the aggegation effect of the oxyhydroxide of iron, and residual Fe in the water after handling
+ 2, Fe
+ 3Be not easy to remove.
In recent years, people have developed organic polymer coargulator again, and the effect of water treatment has had obvious improvement, but because the good hydrophilic property of this flocculation agent, and are harmful and caused the secondary pollution environment, and cost is higher, and use is restricted.Above-mentioned flocculation agent has only the function of aggegation host, does not have the effect of aggegation auxiliary agent.The human water glass and the sulfuric acid manufacturing polymeric silicicacids such as Chang Gu river filial piety hero of Japan water channel machine worker company add aluminium salt then in silicic acid and molysite is made aluminium silicate polymer or ferric-polysilicate.This flocculation agent manufacture method complexity, the polymerization degree of restive silicic acid, and cost is also than higher.
In order to solve the deficiency of above-mentioned technology, the objective of the invention is to provide a kind of raw material sources extensive, manufacturing process is simple, and is cheap, and the function of flocculation agent host is promptly arranged, and the method for the production flocculation agent of flocculation agent promoter effect is arranged again.
Technical solution of the present invention is such:
1. the bunker coal that mixes a certain amount of Wingdale or rhombspar is burnt in the power station vertical cyclone furnace, it dissolves the Water Quenching Slag of discharge and flying dust or their mixture and hydrochloric acid, sulfuric acid or their nitration mixture and carries out solubilizing reaction, the reaction solution pH value reaches at 1.5～3.5 o'clock, stopped reaction, filter and make polyvalent metal ions such as containing aluminum ion and alkaline-earth metal ions such as calcium, magnesium ion, and the flocculant solution of active silicic acid; Perhaps dilute with water behind the certain hour is carried out in reaction, filters and also can make flocculation agent equally.
2. handle mixes a certain amount of Wingdale and magnesium-containing ore, as: the bunker coal of serpentine etc. burns in the power station vertical cyclone furnace, and it dissolves Water Quenching Slag and the flying dust or their mixture of discharge, the liquid flocculant that the method with 1 makes.
3. handle mixes a certain amount of Wingdale and potassic ore, as: the bunker coal of potassium felspar sand or alunite etc. burns in the power station vertical cyclone furnace, dissolves Water Quenching Slag and the flying dust or their mixture of discharge, the liquid flocculant that the method with 1 makes.
4. will be with 1,2, Water Quenching Slag that 3 methods make and flying dust or their mixture mix a certain amount of blast-furnace slag or make liquid flocculant at 700 ℃ of following incendiary bastard coal lime with 1 method.
Concrete proportioning is as follows:
4. Water Quenching Slag that will make with 1,2,3 methods or flying dust 50%～90% mix 10%～50% blast-furnace slag or make liquid flocculant at 700 ℃ of following incendiary bastard coal lime with 1 method.
The mineral composition of the Water Quenching Slag that power plant's vertical cyclone furnace is discharged is estimated as 2CaOAl
2O
3SiO
2, 2CaOMgO, 2SiO
2, 2CaOSiO
2, CaOSiO
2In the composite junction crystal.In order to accelerate dissolution rate, at first, Water Quenching Slag is ground into micropowder state more than 100 orders, Water Quenching Slag or flying dust with dissolving in the normal hydrochloric acid in 0.5 equivalent～6, sulfuric acid or their nitration mixture 1: 1, meltage is few when the concentration of acid is lower than 0.5 equivalent, required time is long, and very fast generation colloidal precipitation in the dissolution process is wayward when the concentration of acid is higher than 6 equivalents.Water Quenching Slag or flying dust with the blending ratio of acid concentration are: when the concentration of acid was 1 equivalent, the Water Quenching Slag fly ash powder was 10 weight, more than acid solution 100 weight, below 300 weight.When concentration 6 equivalents of acid, Water Quenching Slag fly ash powder 10 weight, more than acid solution 50 weight, below 200 weight, when using sulfuric acid, ratio is identical during the hydrochloric acid nitration mixture.When the Water Quenching Slag flying dust is dissolved with acid,, the pH value of acid solution is risen gradually because of CaO contained in the Water Quenching Slag flying dust and MgO etc. cause neutralization reaction, simultaneously, OH when mensuration dissolubility silicic dissolves in acidic solution
-In conjunction with generating (SiOH), dissolved silicic acid becomes monomer silicic acid or active silicic acid Si(OH when surpassing 100PPM)
4, this active silicic acid carries out silanolate in sour water, and carries out polymeric gel gradually, and it has double charge, and promptly bipolarity can be adsorbed so have the material of positive and negative each electric charge, in polymerization, metal ion such as contained Zn, Pb, As in water during gel, P
-3Deng negatively charged ion, solutes such as anion surfactant in conjunction with polymeric gel integrally, also have protein with silicic acid, integrally carry out polymeric gel after micropartical or suspended substances such as fat, outstanding absurd creature also are adsorbed in active silicic acid.Silicic acid good stability behind the gel does not have reversed reaction to generate under the state of nature.In containing the solution of active silicic acid, there is Al
+ 3, Ca
+ 2, Mg
+ 2When the positively charged ion, carry out the polymeric gel reaction rapidly, Al
+ 3Be polymerization → gel separately, but Ca
+ 2, Mg
+ 2Its better effects if during coexistence, this is Al
+ 3In the silicic acid polymerization body, exchange promptly so-called interaction result, the cause of the silicic acid sex change of generation for the silicic acid molecular form.(-SiOH)
m+ Al
+ 3=(SiOH)
M-n(SiO)
nAl
+ 3+ nH
+, Ca in addition
+ 2Or Mg
+ 2Be same HCO
-
3, SO
-2
4Chemical bond generates the insoluble throw out to improve the coagulative precipitation effect.
The characteristics of the flocculation agent of producing with the present invention are to be suitable for extracting, condense, removing the various mishmashes that contain in Shang Shui and time water, as: various solutes, micropartical, suspended substance etc.The mechanism that mishmash is removed in the water is: the Al in the flocculation agent
+ 3, Ca
+ 2, Mg
+ 2Solute generation chemical reaction in plasma and the water, and the mishmash in the generation throw out planar water and dissolved active silicic acid, the i.e. result of triple roles such as the polymerization of monomer silicic acid, gelling in water.In addition also has the function of extracting phosphoric acid in the water.Good purification, technology is simple, and cost is low, is easy to promote.
The invention will be further described below in conjunction with specific embodiment and application examples:
Embodiment 1:
HCL300ml with 3N puts in the beaker, drop into then and be ground into Water Quenching Slag or flying dust 50 grams that 1,2,3 methods make in the above usefulness technical scheme of 100 orders, stir and react, the reaction solution pH value reaches at 1.5～3.5 o'clock, stopped reaction filters and obtains the silicic acid based flocculating agent.
Embodiment 2:
Sulfuric acid 300ml with 4N puts in the beaker, drop into then and be ground into Water Quenching Slag or the flying dust 50 gram stirrings that 1,2,3 methods make in the above usefulness technical scheme of 100 orders, reacted 30 minutes, the reaction solution pH value reaches 30 minutes, with 4 times of vitriolic water dilutions, filter and obtain the silicic acid based flocculating agent then.
Application examples 1:
The water source turbidity of Jinan Yellow River is 500, adds the flocculation agent that embodiment 1 or 2 makes, and ratio is that stirred 2 minutes 1,000: 1 back, records turbidity after static 10 minutes and drops to 1～0.
Application examples 2:
Winter Jilin the preserved egg river, 10 ℃ of water temperatures, turbidity 51, stirred 2 minutes after adding the flocculation agent 1ml that embodiment 1 or 2 makes in the water of 000ml, static 2 minutes, the turbidity that records was 0.
Claims (1)
1, a kind of method of producing the silicic acid based flocculating agent with Water Quenching Slag or flying dust is characterized in that:
(1) mixes 85%～95% bunker coal and in the power station vertical cyclone furnace, burn containing 5%～15% Wingdale or rhombspar, it dissolves Water Quenching Slag and flying dust or their mixture and the hydrochloric acid of discharge, sulfuric acid or their nitration mixture carry out solubilizing reaction, the reaction solution pH value reaches at 1.5～3.5 o'clock, stopped reaction, filter and make polyvalent metal ions such as containing aluminum ion and alkaline-earth metal ions such as calcium, magnesium ion, and the flocculant solution of active silicic acid; Perhaps dilute with water behind the certain hour is carried out in reaction, filters and also can make flocculation agent equally.
(2) mix 80%～93% bunker coal and burn in the power station vertical cyclone furnace containing 5%～15% Wingdale or rhombspar, 2%～5% serpentine, it dissolves Water Quenching Slag and the flying dust or their mixture of discharge, the liquid flocculant that makes with the method for (1).
(3) containing 5%～15% Wingdale or rhombspar, 2%～5% potassium felspar sand mix 80%～93% bunker coal in the power station vertical revolving in the stove burn, dissolve Water Quenching Slag and the flying dust or their mixture of discharge, the liquid flocculant that the method with 1 makes.
(4) Water Quenching Slag that will make with (1), (2), (3) method or flying dust 50%～90% mix 10%～50% blast-furnace slag or make liquid flocculant at 700 ℃ of following incendiary bastard coal lime with the method for (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110019 CN1091393A (en) | 1994-01-13 | 1994-01-13 | Method with Water Quenching Slag or flying dust production silicic acid based flocculating agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110019 CN1091393A (en) | 1994-01-13 | 1994-01-13 | Method with Water Quenching Slag or flying dust production silicic acid based flocculating agent |
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| Publication Number | Publication Date |
|---|---|
| CN1091393A true CN1091393A (en) | 1994-08-31 |
Family
ID=5034012
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94110019 Pending CN1091393A (en) | 1994-01-13 | 1994-01-13 | Method with Water Quenching Slag or flying dust production silicic acid based flocculating agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1091393A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036774C (en) * | 1994-06-03 | 1997-12-24 | 广西大学 | Preparing method for zinc polysilicate flocculate agent and use |
| CN100406093C (en) * | 2003-07-25 | 2008-07-30 | 根路铭秀武 | Coagulant, process for producing the same, and method of coagulation with the coagulant. |
| CN102173625A (en) * | 2011-03-03 | 2011-09-07 | 万载县金洲化工厂 | Method for preparing building materials and fuel from coal gangue, and application |
| CN103395869A (en) * | 2013-07-23 | 2013-11-20 | 内蒙古科技大学 | Water-quenched slag silicate series coagulants and preparation method thereof |
| CN103433270A (en) * | 2013-08-30 | 2013-12-11 | 李戈登 | Comprehensive recycling method for solid waste water-quenched slag |
| CN106924926A (en) * | 2017-04-07 | 2017-07-07 | 张洪 | A kind of fly-ash heavy metal curing agent and its curing |
| CN108706707A (en) * | 2018-06-15 | 2018-10-26 | 广州安达净水材料有限公司 | A kind of implementation of polysilics acid metal salt and flying dust recycling |
| CN108793490A (en) * | 2018-06-07 | 2018-11-13 | 合肥市东方美捷分子材料技术有限公司 | A method of removing water body ammonia nitrogen using tailing |
-
1994
- 1994-01-13 CN CN 94110019 patent/CN1091393A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036774C (en) * | 1994-06-03 | 1997-12-24 | 广西大学 | Preparing method for zinc polysilicate flocculate agent and use |
| CN100406093C (en) * | 2003-07-25 | 2008-07-30 | 根路铭秀武 | Coagulant, process for producing the same, and method of coagulation with the coagulant. |
| CN102173625A (en) * | 2011-03-03 | 2011-09-07 | 万载县金洲化工厂 | Method for preparing building materials and fuel from coal gangue, and application |
| CN102173625B (en) * | 2011-03-03 | 2012-10-17 | 万载县金洲化工厂 | Method for preparing building materials and fuel from coal gangue, and application |
| CN103395869A (en) * | 2013-07-23 | 2013-11-20 | 内蒙古科技大学 | Water-quenched slag silicate series coagulants and preparation method thereof |
| CN103395869B (en) * | 2013-07-23 | 2014-11-26 | 内蒙古科技大学 | Water-quenched slag silicate series coagulants and preparation method thereof |
| CN103433270A (en) * | 2013-08-30 | 2013-12-11 | 李戈登 | Comprehensive recycling method for solid waste water-quenched slag |
| CN106924926A (en) * | 2017-04-07 | 2017-07-07 | 张洪 | A kind of fly-ash heavy metal curing agent and its curing |
| CN108793490A (en) * | 2018-06-07 | 2018-11-13 | 合肥市东方美捷分子材料技术有限公司 | A method of removing water body ammonia nitrogen using tailing |
| CN108706707A (en) * | 2018-06-15 | 2018-10-26 | 广州安达净水材料有限公司 | A kind of implementation of polysilics acid metal salt and flying dust recycling |
| CN108706707B (en) * | 2018-06-15 | 2021-04-16 | 广州安达净水材料有限公司 | Implementation method for resource utilization of polysilicate metal and fly ash |
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