CN102815881B - Production method for preparing liquid setting accelerator from alumina clinker - Google Patents
Production method for preparing liquid setting accelerator from alumina clinker Download PDFInfo
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- CN102815881B CN102815881B CN 201210322987 CN201210322987A CN102815881B CN 102815881 B CN102815881 B CN 102815881B CN 201210322987 CN201210322987 CN 201210322987 CN 201210322987 A CN201210322987 A CN 201210322987A CN 102815881 B CN102815881 B CN 102815881B
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- sodium aluminate
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Abstract
The invention discloses a production method for preparing a liquid setting accelerator from alumina clinker, which comprises the following steps: 1. selecting alumina clinker, of which the initial setting time is less than or equal to 1 minute and the final setting time is less than or equal to 2 minutes 10 seconds, as a raw material; 2. grinding the alumina clinker selected in the step 1 until the particle size is 100-120 meshes; 3. transporting the ground alumina clinker into a closed stirring tank, stirring for more than 45 minutes while spraying water, and precipitating sludge to obtain aclear sodium aluminate liquid; and 4. discharging the clear sodium aluminate liquid into a storage tank, adding assistants polyacrylic acid and ethylene glycol into the sodium aluminate liquid, and stirring to obtain the finished product liquid setting accelerator. The alkaline liquid setting accelerator in the existing market is produced by reacting aluminum hydroxide and sodium hydroxide; and since the alkaline liquid setting accelerator in the existing market is produced from chemical raw materials, the cost is high, and thus, the alkaline liquid setting accelerator does not have price advantage in market competition as compared with the liquid setting accelerator produced by the alumina clinker method.
Description
Technical field
The present invention relates to the production method that a kind of employing aluminum oxide clinker prepares liquid accelerator.
Background technology
Along with the progress of concrete-spraying technology with to improving the requirement of worker's Working environment, wet type whitewashing technology fltting speed is further accelerated, and has brought simultaneously the development of liquid accelerator.The liquid accelerator of selling on the market now is divided into alkali-free liquid accelerator and alkali liquid quick-setting agent is arranged.
The present alkali liquid quick-setting agent production method that has is to adopt aluminium hydroxide and sodium hydroxide reaction to generate, and then composite other auxiliary agent, can produce finished product.This method is produced alkali liquid quick-setting agent concentration high alkalinity large (this kind method produce liquid accelerator pH value be 14), serious to construction workman corrodibility; Because the liquid accelerator volume is few and the limitation of construction technology, liquid accelerator and concrete exist homogenize not good in application process, the defective that springback capacity is large, and this explained hereafter cost is higher, in case novel method production is arranged, the market competitiveness is little; Also having a kind of method is directly to be dissolved in water with the pulvis sodium aluminate to add other auxiliary agent again, and the higher production difficulty of this kind way cost is large.
Summary of the invention
The present invention aims to provide the accelerating chemicals of a kind of low alkalinity, low process costs, low production difficulty.
In order to solve the problems of the technologies described above, the invention provides a kind of production method that adopts aluminum oxide clinker to prepare liquid accelerator, this production method may further comprise the steps: step 1, to select the aluminum oxide clinker in initial set Shi Jian＜=1 minute and final set Shi Jian＜=2 minute 10 seconds be raw material; Step 2, with the levigate processing of the selected aluminum oxide clinker of step 1, levigate granularity is 100 ~ 120 orders; Step 3, be delivered to the aluminum oxide clinker after levigate in the stirred pot of sealing after, the rain type watering is stirred, churning time is greater than 45 minutes, mud shape thing precipitation then, sodium aluminate liquid levigation; Step 4, the sodium aluminate liquid of levigation is emitted, entered in the hold-up vessel, add again auxiliary agent polyacrylic acid and ethylene glycol in the sodium aluminate liquid and stir and to prepare the finished product liquid accelerator.
Further, described step 3 continues to add water and stirs behind levigation sodium aluminate liquid in stirred pot, mud shape thing is emitted to dry after static and produces powder accelerator and use.
Further, the polyacrylic add-on of auxiliary agent in the described step 4 be the sodium aluminate liquid mass 0.01 ~ 0.02%, the add-on of auxiliary agent ethylene glycol is 0.005 ~ 0.015% of sodium aluminate liquid mass.
Further again, the polyacrylic add-on of auxiliary agent in the described step 4 be the sodium aluminate liquid mass 0.015%, the add-on of auxiliary agent ethylene glycol is 0.01% of sodium aluminate liquid mass.
Beneficial effect of the present invention is:
1, the alkali liquid quick-setting agent that has that existing market occurs is produced with aluminium hydroxide and sodium hydroxide reaction, owing to using industrial chemicals production, cost is high, compares market competition with aluminum oxide clinker method production of the present invention and does not possess price advantage.
2, aluminum oxide clinker method of the present invention is produced and is equaled to begin to produce from ore, so cost is relatively low.In case therefore launch has stronger competitive power.
3, aluminum oxide clinker method production alkalescence of the present invention is low, and corrodibility is little, and is also little to the weather resistance negative impact of sprayed concrete.
Below in conjunction with embodiment the present invention is described in further detail.
Embodiment
Embodiment 1
A kind of production method that adopts aluminum oxide clinker to prepare liquid accelerator provided by the invention, this production method may further comprise the steps: step 1, to select the aluminum oxide clinker in initial set Shi Jian＜=1 minute and final set Shi Jian＜=2 minute 10 seconds be raw material; Step 2, with the levigate processing of the selected aluminum oxide clinker of step 1, levigate granularity is 100 orders; Step 3, be delivered to the aluminum oxide clinker after levigate in the stirred pot of sealing after, the rain type watering is stirred, churning time is 46 minutes, mud shape thing precipitation then, sodium aluminate liquid levigation; Step 4, the sodium aluminate liquid of levigation is emitted, entered in the hold-up vessel, add again auxiliary agent polyacrylic acid and ethylene glycol in the sodium aluminate liquid and stir and to prepare the finished product liquid accelerator.Finished product liquid accelerator after the preparation is placed in the end product pool.The polyacrylic add-on of auxiliary agent in the described step 4 be the sodium aluminate liquid mass 0.015%, the add-on of auxiliary agent ethylene glycol is 0.01% of sodium aluminate liquid mass.The pH value of the liquid accelerator of producing after measured is 11.
Embodiment 2
The another kind of production method that adopts aluminum oxide clinker to prepare liquid accelerator provided by the invention, this production method may further comprise the steps: step 1, to select the aluminum oxide clinker in initial set Shi Jian＜=1 minute and final set Shi Jian＜=2 minute 10 seconds be raw material; Step 2, with the levigate processing of the selected aluminum oxide clinker of step 1, levigate granularity is 110 orders; Step 3, be delivered to the aluminum oxide clinker after levigate in the stirred pot of sealing after, the rain type watering is stirred, churning time is 50 minutes, mud shape thing precipitation then, sodium aluminate liquid levigation; Step 4, the sodium aluminate liquid of levigation is emitted, entered in the hold-up vessel, add again auxiliary agent polyacrylic acid and ethylene glycol in the sodium aluminate liquid and stir and to prepare the finished product liquid accelerator.Finished product liquid accelerator after the preparation is placed in the end product pool.The polyacrylic add-on of auxiliary agent in the described step 4 be the sodium aluminate liquid mass 0.01%, the add-on of auxiliary agent ethylene glycol is 0.015% of sodium aluminate liquid mass.The pH value of the liquid accelerator of producing after measured is 11.
Embodiment 3
A kind of production method that adopts aluminum oxide clinker to prepare liquid accelerator provided by the invention, this production method may further comprise the steps: step 1, to select the aluminum oxide clinker in initial set Shi Jian＜=1 minute and final set Shi Jian＜=2 minute 10 seconds be raw material; Step 2, with the levigate processing of the selected aluminum oxide clinker of step 1, levigate granularity is 120 orders; Step 3, be delivered to the aluminum oxide clinker after levigate in the stirred pot of sealing after, the rain type watering is stirred, churning time is 55 minutes, mud shape thing precipitation then, sodium aluminate liquid levigation; Step 4, the sodium aluminate liquid of levigation is emitted, entered in the hold-up vessel, add again auxiliary agent polyacrylic acid and ethylene glycol in the sodium aluminate liquid and stir and to prepare the finished product liquid accelerator.Finished product liquid accelerator after the preparation is placed in the end product pool.The polyacrylic add-on of auxiliary agent in the described step 4 be the sodium aluminate liquid mass 0.02%, the add-on of auxiliary agent ethylene glycol is 0.005% of sodium aluminate liquid mass.The pH value of the liquid accelerator of producing after measured is 11.
Step 3 in the above-described embodiments continues to add water and stirs behind levigation sodium aluminate liquid in stirred pot, mud shape thing emitted to dry after static and produce powder accelerator and use.Accomplish like this utilization of waste material, realized environmental protection production.The secondary stirring clear liquid can also be emitted and deposit storage tank in, as water of productive use next time.
Protection scope of the present invention is not limited to above-mentioned embodiment, and is every according to the technology of the present invention principle, and the apparent technology distortion of doing all falls within protection scope of the present invention.
Claims (3)
1. a production method that adopts aluminum oxide clinker to prepare liquid accelerator is characterized in that, this production method may further comprise the steps: step 1, when selecting initial set between＜=when 1 minute and final set between＜=aluminum oxide clinker in 2 minute 10 second is raw material;
Step 2, with the levigate processing of the selected aluminum oxide clinker of step 1, levigate granularity is 100 ~ 120 orders;
Step 3, be delivered to the aluminum oxide clinker after levigate in the stirred pot of sealing after, the rain type watering is stirred, churning time is greater than 45 minutes, mud shape thing precipitation then, sodium aluminate liquid levigation;
Step 4, the sodium aluminate liquid of levigation is emitted, entered in the hold-up vessel, add again auxiliary agent polyacrylic acid and ethylene glycol in the sodium aluminate liquid and stir and to prepare the finished product liquid accelerator;
The polyacrylic add-on of auxiliary agent in the described step 4 be the sodium aluminate liquid mass 0.01 ~ 0.02%, the add-on of auxiliary agent ethylene glycol is 0.005 ~ 0.015% of sodium aluminate liquid mass.
2. employing aluminum oxide clinker according to claim 1 prepares the production method of liquid accelerator, it is characterized in that, described step 3 continues to add water and stirs behind levigation sodium aluminate liquid in stirred pot, mud shape thing emitted to dry after static and produce powder accelerator and use.
3. employing aluminum oxide clinker according to claim 1 prepares the production method of liquid accelerator, it is characterized in that, the polyacrylic add-on of auxiliary agent in the described step 4 be the sodium aluminate liquid mass 0.015%, the add-on of auxiliary agent ethylene glycol is 0.01% of sodium aluminate liquid mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201210322987 CN102815881B (en) | 2012-09-04 | 2012-09-04 | Production method for preparing liquid setting accelerator from alumina clinker |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201210322987 CN102815881B (en) | 2012-09-04 | 2012-09-04 | Production method for preparing liquid setting accelerator from alumina clinker |
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| CN102815881A CN102815881A (en) | 2012-12-12 |
| CN102815881B true CN102815881B (en) | 2013-10-16 |
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| KR102451609B1 (en) * | 2016-05-16 | 2022-10-06 | 마르틴스베르크 게엠베하 | Alumina products and uses thereof in polymer compositions with high thermal conductivity |
| CN108545983A (en) * | 2018-07-03 | 2018-09-18 | 贵州大学 | A kind of method that ardealite and iron red mud carry iron coproduction liquid accelerating agent |
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