CN104743599A - Production additive capable of increasing and improving yield and quality of calcium carbonate powder and use method of production additive - Google Patents
Production additive capable of increasing and improving yield and quality of calcium carbonate powder and use method of production additive Download PDFInfo
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- CN104743599A CN104743599A CN201510124365.XA CN201510124365A CN104743599A CN 104743599 A CN104743599 A CN 104743599A CN 201510124365 A CN201510124365 A CN 201510124365A CN 104743599 A CN104743599 A CN 104743599A
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- additive
- calcium carbonate
- stone powder
- carbonate stone
- carbonate powder
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Abstract
The invention discloses a production additive capable of increasing and improving a yield and quality of calcium carbonate powder. The additive is characterized in that the additive comprises the following materials by mass percent: 27-34% of diethanol, 9-13% of molasses, 8-11% of triethanolamine, 27-38% of crude glycerine and the balance being water. When the additive is used for grinding of the calcium carbonate powder, the use amount of the additive is 1-1.5g additive per kilogram calcium carbonate powder. Judging from the actual use effect, with the adoption of the additive, the power consumption of grinding equipment can be reduced by about 20%; the depreciation speed of the grinding equipment can be reduced by about 13%; in addition, the labor cost can be saved; and the additive particularly deserves to be popularized in production and application processes of the calcium carbonate powder.
Description
Technical field
The invention belongs to calcium carbonate stone powder (i.e. limestone powder) production technical field, be specifically related to a kind of additive and the using method thereof that improve calcium carbonate stone powder seed output and quality.
Background technology
In power plant desulfurization process, the principle of work of limestone desulfurization is added water by limestone powder to make slurries and pump into absorption tower as absorption agent and fully contact mixing with flue gas, sulfurous gas in flue gas and the calcium carbonate in slurries and the air blasted from tower bottom carry out oxidizing reaction and generate calcium sulfate, after calcium sulfate reaches certain saturation degree, crystallization forms dihydrate gypsum.The gypsum slurries of discharging through absorption tower, through thickening, is then delivered to gypsum bunker with transfer roller and is stacked.
Present power plant's great majority use circular fluid bed, and circulating fluid bed boiler desulfurization needs to use limestone powder, and limestone particle diameter should be less than 1mm, and from size distribution, the diameter of most of particle should concentrate on d50 near zone.Substantially adopt the Wingdale of 0 ~ 1mm particle size range at present, and reduce the share of fine powder as far as possible.Limestone particle size is less, then its solubleness in slurries and dissolution rate faster, simultaneously due to the centrifugation of swirler, short grained Wingdale is easier returns to absorption tower with overflow slurry, and the lime stone slurry entering absorption tower is fully utilized.
Obviously, in power plant desulfurization process, the thinner desulfuration efficiency of calcium carbonate stone powder is higher, but, grind thinner energy consumption is also corresponding higher.
By analysis, affect in process of lapping, affect stone flour fineness because of have a calcium carbonate stone powder process of lapping in there is bag ball phenomenon, this phenomenon causes due to electrostatic adsorption, and meanwhile, the ultra-fine grain formed in grinding process has again coalescent trend.These phenomenons all affect the grinding effect of stone flour and the grinding efficiency of powder separating machine, thus reduce grinding energy.
Summary of the invention
The object of this invention is to provide a kind of production additive improving calcium carbonate stone powder seed output and quality, this additive is used in the grinding steps in calcium carbonate stone powder production process.
Concrete technical scheme of the present invention is as follows:
Improve a production additive for Paris white seed output and quality, comprise following material according to massfraction meter:
In described raw glycerine, the mass concentration of glycerine is 80% ~ 90%.
Sugared brix >=70 of described molasses, solid content >=45.
When this additive is used for calcium carbonate stone powder levigate, its consumption is that every kilogram of calcium carbonate stone powder adopts this additive 1 ~ 1.5 gram.
As preferably:
1, following material is comprised according to massfraction meter:
When this additive is used for calcium carbonate stone powder levigate, its consumption is that every kilogram of calcium carbonate stone powder adopts this additive 1.3 grams.
2, following material is comprised according to massfraction meter:
When this additive is used for calcium carbonate stone powder levigate, its consumption is that every kilogram of calcium carbonate stone powder adopts this additive 1.3 grams.
3, following material is comprised according to massfraction meter:
When this additive is used for calcium carbonate stone powder levigate, its consumption is that every kilogram of calcium carbonate stone powder adopts this additive 1 gram.
This additive is mainly used in improving calcium carbonate stone powder workability and regulating time of coagulation.Show as its composition when regulating solidifying and can be adsorbed on calcium carbonate stone powder particle surface, form the hydrophilic film of like charges, particle is repelled mutually, and hinders its aquation, thus play delayed coagulation.
This additive is a kind of agglomeration power that can effectively shield between particle, and the highly disperse active agent reduce powder surface free energy, preventing powder from reassociating, have passed through a large amount of production tests and the scientific validation in laboratory.In addition the performance of grinding process, the impact etc. of calcium carbonate stone powder size distribution are tested, find that this additive has the advantages such as strong adaptability, good stability, composition decomposability be good.
Improve each age strength of calcium carbonate stone powder while this additive shows as efficient energy-saving, increase calcium carbonate stone powder output and improve other calcium carbonate stone powder index; And good with calcium carbonate stone powder admixture consistency, higher than market product in holistic cost cost performance.
This additive reduces all show the substantial function and characteristics of product from the energy consumption that is increased to of the raising of the improvement to mill efficiency, output, intensity.
From practical effect, this additive can reduce about 20% to the power consumption of milling equipment, the depreciation speed of milling equipment can reduce about 13%, also can save labour cost simultaneously, especially be worthy to be popularized in the production and application process of calcium carbonate stone powder.
Embodiment
The present invention is further described as follows to gather specific embodiment below:
Improve a production additive for Paris white seed output and quality, comprise following material according to massfraction meter:
In described raw glycerine, the mass concentration of glycerine is 80% ~ 90%.Sugared brix >=70 of described molasses, solid content >=45.
When this additive is used for calcium carbonate stone powder levigate middle, its consumption is that every kilogram of calcium carbonate stone powder adopts this additive 1 ~ 1.5 gram.
Adopt this additive to carry out the levigate of calcium carbonate stone powder, and corresponding calcium carbonate stone powder be used in the Wet Fgd By Limestone FGD system of power plant:
Example 1,
The additive of this example, comprises following material according to massfraction meter:
When this additive is used for calcium carbonate stone powder levigate, its consumption is that every kilogram of calcium carbonate stone powder adopts this additive 1.3 grams.
Through detecting, adopt 325 orders, the sieving of crossing of calcium carbonate stone powder reaches 86%.
Example 2,
This additive comprises following material according to massfraction meter:
During this calcium carbonate stone powder levigate, its consumption is that every kilogram of calcium carbonate stone powder adopts this additive 1.3 grams.
Through detecting, adopt 325 orders, the sieving of crossing of calcium carbonate stone powder reaches 89%.
Example 3,
This additive comprises following material according to massfraction meter:
When this additive is used for calcium carbonate stone powder levigate, its consumption is that every kilogram of calcium carbonate stone powder adopts this additive 1 gram.
Through detecting, adopt 325 orders, the sieving of crossing of calcium carbonate stone powder reaches 83%.
Adopt the stone flour of example 1 ~ 3 to be used in FGD system, after tested, the fractional conversion of calcium carbonate stone powder generally improves about 17%.Illustrate that after adopting this additive, calcium carbonate stone powder is than the calcium carbonate stone powder not adding this additive, and its reactive behavior has very big raising.
Claims (10)
1. can improve a production additive for Paris white seed output and quality, it is characterized in that comprising following material according to massfraction meter:
2. additive according to claim 1, is characterized in that in described raw glycerine, and the mass concentration of glycerine is 80% ~ 90%.
3. additive according to claim 1, is characterized in that sugared brix >=70 of described molasses, solid content >=45.
4. the additive according to claim 1,2 or 3, is characterized in that comprising following material according to massfraction meter:
5. the additive according to claim 1,2 or 3, is characterized in that comprising following material according to massfraction meter:
6. the additive according to claim 1,2 or 3, is characterized in that comprising following material according to massfraction meter:
7. the additive according to claim 1,2 or 3, when it is characterized in that this additive for calcium carbonate stone powder levigate, its consumption is that every kilogram of calcium carbonate stone powder adopts this additive 1 ~ 1.5 gram.
8. additive according to claim 4, when it is characterized in that this additive for calcium carbonate stone powder levigate, its consumption is that every kilogram of calcium carbonate stone powder adopts this additive 1.3 grams.
9. additive according to claim 5, when it is characterized in that this additive for calcium carbonate stone powder levigate, its consumption is that every kilogram of calcium carbonate stone powder adopts this additive 1.5 grams.
10. additive according to claim 6, when it is characterized in that this additive for calcium carbonate stone powder levigate, its consumption is that every kilogram of calcium carbonate stone powder adopts this additive 1 gram.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510124365.XA CN104743599A (en) | 2015-03-20 | 2015-03-20 | Production additive capable of increasing and improving yield and quality of calcium carbonate powder and use method of production additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510124365.XA CN104743599A (en) | 2015-03-20 | 2015-03-20 | Production additive capable of increasing and improving yield and quality of calcium carbonate powder and use method of production additive |
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| CN104743599A true CN104743599A (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510124365.XA Pending CN104743599A (en) | 2015-03-20 | 2015-03-20 | Production additive capable of increasing and improving yield and quality of calcium carbonate powder and use method of production additive |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007277071A (en) * | 2006-04-10 | 2007-10-25 | Naoyuki Shimizu | Resolidification equipment for powder calcium carbonate |
| CN101898878A (en) * | 2010-07-19 | 2010-12-01 | 宜兴市宏伟科技有限公司 | Cement grinding aid |
| CN102126843A (en) * | 2011-04-19 | 2011-07-20 | 鲁南中联水泥有限公司 | Cement grinding aid and preparation method thereof |
| CN102249586A (en) * | 2011-05-13 | 2011-11-23 | 洛阳万顺建材有限公司 | Grinding-assistant reinforcing agent for mineral powder |
| CN102976659A (en) * | 2012-12-27 | 2013-03-20 | 广东石油化工学院 | Chemical-waste compounded cement grinding aid |
| CN103524066A (en) * | 2013-10-21 | 2014-01-22 | 江苏聚威新材料有限公司 | Glycerin distillation residue treatment method |
-
2015
- 2015-03-20 CN CN201510124365.XA patent/CN104743599A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007277071A (en) * | 2006-04-10 | 2007-10-25 | Naoyuki Shimizu | Resolidification equipment for powder calcium carbonate |
| CN101898878A (en) * | 2010-07-19 | 2010-12-01 | 宜兴市宏伟科技有限公司 | Cement grinding aid |
| CN102126843A (en) * | 2011-04-19 | 2011-07-20 | 鲁南中联水泥有限公司 | Cement grinding aid and preparation method thereof |
| CN102249586A (en) * | 2011-05-13 | 2011-11-23 | 洛阳万顺建材有限公司 | Grinding-assistant reinforcing agent for mineral powder |
| CN102976659A (en) * | 2012-12-27 | 2013-03-20 | 广东石油化工学院 | Chemical-waste compounded cement grinding aid |
| CN103524066A (en) * | 2013-10-21 | 2014-01-22 | 江苏聚威新材料有限公司 | Glycerin distillation residue treatment method |
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Application publication date: 20150701 |