CN105647602A - Novel composite coal water slurry and a preparing method thereof - Google Patents
Novel composite coal water slurry and a preparing method thereof Download PDFInfo
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- CN105647602A CN105647602A CN201410658421.3A CN201410658421A CN105647602A CN 105647602 A CN105647602 A CN 105647602A CN 201410658421 A CN201410658421 A CN 201410658421A CN 105647602 A CN105647602 A CN 105647602A
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Abstract
The invention relates to novel composite coal water slurry. A finished product of the composite coal water slurry is prepared by weighing fixed amounts of fine coal powder, crude coal powder, medium-grained coal powder and large-grained coal powder which are prepared through dry-method grinding, mixing with each other, gradually adding into water in which a stabilizer and a dispersant are dissolved, adding an emulsifier into coal tar, mixing the two mixtures prepared in above steps, and fully stirring. The dispersant, the stabilizer and the coal powder with different particle sizes are matched with each other, and therefore the stability of the coal water slurry is further improved. The concentration of the prepared coal water slurry is 70%, the viscosity is 800-1000 MPa.S, stability of the coal water slurry can be maintained for 30 days, and the coal water slurry is complete in combustion, convenient in pumping, environmental friendly and energy-saving.
Description
Technical field
The invention belongs to coal water slurry preparing technical field, especially a kind of NEW TYPE OF COMPOSITE coal water slurry and its preparation method.
Background technology
Coal water slurry is by coal, the mixture that water and a small amount of additive are mixed with by certain requirement, there is good mobility and stability, can pumping, atomization, store and stable burning, its calorific value is equivalent to the half of oil fuel, oil fuel can be replaced to be used for boiler, power station, industrial furnace and cellar for storing things stove, for replacing coal, there is combustion benefits height, load adjustment is convenient, reduce environmental pollution, reduce labour intensity and economize on the advantages such as coal, high density it is divided into time prepared by coal water slurry, middle concentration and lower concentration, difference be water content number, the more high coal water slurry of concentration is more stable, and burn time de-fire section more short, burning of catching fire is more stable, concentration is subject to coal characteristic, the impact of grain size distribution and additive types and proportioning, coal characteristic is by restricting with producing coal, after the comprehensive key being preferably only the satisfactory high-concentration coal-water slurry of scale operation of two aspects.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that repeatedly grind, add a kind of NEW TYPE OF COMPOSITE coal water slurry of suitable additives.
The technical scheme that the present invention takes is:
A kind of NEW TYPE OF COMPOSITE coal water slurry, it is characterised in that: comprise the following component mixed by weight:
And, the granularity of described duff ash is 30 microns, and described thick coal powder size is 50 microns, and in described, thick coal powder size is 90 microns, and the thick coal powder size of described height is 120 microns.
And, described stablizer is polyacrylamide.
And, described emulsifying agent is OP-30.
And, described dispersion agent is polypropylene sodium sulfonate.
It is a further object to provide the preparation method of a kind of NEW TYPE OF COMPOSITE coal water slurry, it is characterised in that: comprise the following steps:
(1) take the fine breeze, rough coal powder, middle rough coal powder and the high rough coal powder that adopt dry grinding to make by metering, mutual blending;
(2) stablizer and dispersion agent are added to the water, add step product (1) gradually when stirring, stir 40 minutes;
(3) in coal tar, add emulsifying agent, stir after evenly and add in step product (2), stir 40 minutes obtained finished products.
And, step stirring velocity (2) be every minute 600 turns, step stirring velocity (3) be every minute 1800 turns.
Advantage and the positively effect of the present invention be:
In the present invention, take the fine breeze, rough coal powder, middle rough coal powder and the high rough coal powder that adopt dry grinding to make by metering, mutual blending, then add gradually in the water being dissolved with stablizer and dispersion agent, again emulsifying agent is added in coal tar, then mix with the former, stir evenly obtained finished product. Dispersion agent, stablizer and varigrained flyash cooperatively interact, and further increase the stability of coal water slurry, and obtained water coal slurry concentration is 70%, viscosity between 800��1000MPa.S, sustainable 30 days of stability, more abundant during burning, pumping is convenient, environmental protection and energy saving.
Embodiment
Below in conjunction with embodiment, the present invention is further described, and following embodiment is explanation property, is not limited, can not limit protection scope of the present invention with following embodiment.
A kind of NEW TYPE OF COMPOSITE coal water slurry, the innovation of the present invention is: comprise the following component mixed by weight:
Wherein, the granularity of described duff ash is 30 microns, and described thick coal powder size is 50 microns, and in described, thick coal powder size is 90 microns, and the thick coal powder size of described height is 120 microns. Described stablizer is polyacrylamide. Described emulsifying agent is OP-30. Described dispersion agent is polypropylene sodium sulfonate.
The preparation method of above-mentioned NEW TYPE OF COMPOSITE coal water slurry comprises the following steps:
(1) take the fine breeze, rough coal powder, middle rough coal powder and the high rough coal powder that adopt dry grinding to make by metering, mutual blending;
(2) stablizer and dispersion agent are added to the water, add step product (1) gradually when stirring, stir 40 minutes;
(3) in coal tar, add emulsifying agent, stir after evenly and add in step product (2), stir 40 minutes obtained finished products.
Wherein, step stirring velocity (2) be every minute 600 turns, step stirring velocity (3) be every minute 1800 turns.
In the present invention, take the fine breeze, rough coal powder, middle rough coal powder and the high rough coal powder that adopt dry grinding to make by metering, mutual blending, then add gradually in the water being dissolved with stablizer and dispersion agent, again emulsifying agent is added in coal tar, then mix with the former, stir evenly obtained finished product. Dispersion agent, stablizer and varigrained flyash cooperatively interact, and further increase the stability of coal water slurry, and obtained water coal slurry concentration is 70%, viscosity between 800��1000MPa.S, sustainable 30 days of stability, more abundant during burning, pumping is convenient, environmental protection and energy saving.
Claims (7)
1. a NEW TYPE OF COMPOSITE coal water slurry, it is characterised in that: comprise the following component mixed by weight:
��
2. a kind of NEW TYPE OF COMPOSITE coal water slurry according to claim 1, it is characterised in that: the granularity of described duff ash is 30 microns, and described thick coal powder size is 50 microns, and in described, thick coal powder size is 90 microns, and the thick coal powder size of described height is 120 microns.
3. a kind of NEW TYPE OF COMPOSITE coal water slurry according to claim 2, it is characterised in that: described stablizer is polyacrylamide.
4. a kind of NEW TYPE OF COMPOSITE coal water slurry according to claim 3, it is characterised in that: described emulsifying agent is OP-30.
5. a kind of NEW TYPE OF COMPOSITE coal water slurry according to claim 4, it is characterised in that: described dispersion agent is polypropylene sodium sulfonate.
6. the preparation method of a kind of NEW TYPE OF COMPOSITE coal water slurry according to claim 5, it is characterised in that: comprise the following steps:
(1) take the fine breeze, rough coal powder, middle rough coal powder and the high rough coal powder that adopt dry grinding to make by metering, mutual blending;
(2) stablizer and dispersion agent are added to the water, add step product (1) gradually when stirring, stir 40 minutes;
(3) in coal tar, add emulsifying agent, stir after evenly and add in step product (2), stir 40 minutes obtained finished products.
7. the preparation method of a kind of NEW TYPE OF COMPOSITE coal water slurry according to claim 6, it is characterised in that: step stirring velocity (2) be every minute 600 turns, step stirring velocity (3) be every minute 1800 turns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410658421.3A CN105647602A (en) | 2014-11-17 | 2014-11-17 | Novel composite coal water slurry and a preparing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410658421.3A CN105647602A (en) | 2014-11-17 | 2014-11-17 | Novel composite coal water slurry and a preparing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105647602A true CN105647602A (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410658421.3A Pending CN105647602A (en) | 2014-11-17 | 2014-11-17 | Novel composite coal water slurry and a preparing method thereof |
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| Country | Link |
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| CN (1) | CN105647602A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2562557A (en) * | 2018-01-19 | 2018-11-21 | A P Moeller Mærsk As | Slurry fuel suspension and method for preparation |
| CN109576024A (en) * | 2018-12-10 | 2019-04-05 | 宁波敬业控股集团有限公司 | Water-coal-slurry and preparation method thereof |
| CN110452747A (en) * | 2019-07-16 | 2019-11-15 | 广西欧神诺陶瓷有限公司 | Water-coal-slurry and preparation method thereof |
-
2014
- 2014-11-17 CN CN201410658421.3A patent/CN105647602A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2562557A (en) * | 2018-01-19 | 2018-11-21 | A P Moeller Mærsk As | Slurry fuel suspension and method for preparation |
| CN109576024A (en) * | 2018-12-10 | 2019-04-05 | 宁波敬业控股集团有限公司 | Water-coal-slurry and preparation method thereof |
| CN110452747A (en) * | 2019-07-16 | 2019-11-15 | 广西欧神诺陶瓷有限公司 | Water-coal-slurry and preparation method thereof |
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| C06 | Publication | ||
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Application publication date: 20160608 |