CN104762114A - High-calorific-value coal water slurry - Google Patents
High-calorific-value coal water slurry Download PDFInfo
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- CN104762114A CN104762114A CN201510126552.1A CN201510126552A CN104762114A CN 104762114 A CN104762114 A CN 104762114A CN 201510126552 A CN201510126552 A CN 201510126552A CN 104762114 A CN104762114 A CN 104762114A
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- coal
- water slurry
- reduced
- discharge amount
- coal water
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Abstract
The invention relates to high-calorific-value coal water slurry, which comprises coal, sodium hydroxide, manganese sulfate, sodium nitrate, and water. The mass percentage of each component is 55-65% of coal, 0.1-0.3% of sodium hydroxide, 0.25-0.45% of manganese sulfate, and 0.35-0.55% of sodium nitrate, the balance being water. During a burning process of the coal water slurry, the dust discharge amount can be reduced; low-nitrogen burning is realized through desulfurization and denitrification; and haze is prevented against forming from the source. Fuel is saved, since two tons of the coal water slurry equals to one ton of fuel oil, and the water doesn't separate from the powder in a long time. The fire box temperature can be improved by 100-200 DEG C, and the thermal efficiency can be improved by 25-35%. The discharge amounts of poisonous gases are reduced, wherein the discharge amount of SO2 is reduced by 50-70%, the discharge amount of NOX is reduced by 70-80%, the discharge amount of CO is reduced by 70-80%, and the discharge amount of H2S is reduced by 50-70%. The coal water slurry is free of toxicity and smell, is not flammable or combustible, and is free of environment pollution and equipment corrosion. The coal water slurry can be stored for a long time with no influence on quality, and can be widely applied to fields, such as thermal power generation, metallurgy, chemical industry, civilian boilers, building material furnaces, and drying and heating kilns.
Description
Technical field
The present invention relates to environment-friendly fuel field, particularly a kind of high heating value coal water slurry.
Background technology
Along with developing rapidly of national economy, save energy, protection of the environment, raising people's living standard are scientific and technical personnel's obligations one can't decline.There is water and be separated with powder in existing coal water slurry, dust discharge amount is large, the shortcoming that calorific value is low.In order to overcome prior art deficiency, through studying for many years, successfully develop the coal water slurry that dust discharge amount is little, calorific value is high.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of high heating value coal water slurry, has that production cost is low, the simple feature of technique.
For achieving the above object, the present invention realizes by the following technical solutions:
A kind of high heating value coal water slurry, comprising coal, sodium hydroxide, manganous sulfate, SODIUMNITRATE and water, is coal 55 ~ 65% by mass percentage, sodium hydroxide 0.1 ~ 0.3%, manganous sulfate 0.25 ~ 0.45%, SODIUMNITRATE 0.35 ~ 0.55%, and all the other are water.
A kind of high heating value coal water slurry is coal 60% by mass percentage, sodium hydroxide 0.2%, manganous sulfate 0.35%, SODIUMNITRATE 0.45%, water 39%.
Described coal is the coal dust that granularity is less than 40 microns.
Compared with prior art, the invention has the beneficial effects as follows:
1. the present invention can reduce dust discharge amount in combustion, can realize low nitrogen burning by desulphurization denitration, reduce the formation of haze from source.
2. fuel economy, 2 tons of coal water slurry are equivalent to 1 ton of fuel oil, and pigment keep not being separated for a long time.Fire box temperature can improve 100-200 DEG C, and thermo-efficiency improves 25-35%.
3. harmful gas emission declines, wherein SO
2reduce 50-70%, NO
xreduce 70-80%, CO and reduce 70-80%, H
2s reduces 50-70%.
The present invention is nonpoisonous and tasteless, nonflammable explosive, free from environmental pollution, corrosion-free to equipment.Long-term storage does not affect quality.Be widely used in thermal power generation, metallurgy, chemical industry, civil boiler, building materials stove, dry the fields such as heating kiln.
Embodiment
Below in conjunction with embodiment, the present invention is further described:
Following examples describe the present invention.These embodiments are only be described optimum implementation of the present invention, do not limit scope of the present invention.
Embodiment 1
A kind of high heating value coal water slurry is coal 60% by mass percentage, sodium hydroxide 0.2%, manganous sulfate 0.35%, SODIUMNITRATE 0.45%, water 39%.
Coal is machined to less than 40 microns, in proportion each component is stirred simultaneously, spray in stove through pneumatic nebulization spray gun again through pulping equipment input channel and get final product Thorough combustion.35% is improved through inspection thermo-efficiency.Fire box temperature improves 150-200 DEG C.
Embodiment 2
A kind of high heating value coal water slurry is coal 56% by mass percentage, sodium hydroxide 0.1%, manganous sulfate 0.45%, SODIUMNITRATE 0.55%, water 42.9%.
Coal is machined to less than 40 microns, in proportion each component is stirred simultaneously, spray in stove through pneumatic nebulization spray gun again through pulping equipment input channel and get final product Thorough combustion.25% is improved through inspection thermo-efficiency.Fire box temperature improves 100-150 DEG C.
Embodiment 3
A kind of high heating value coal water slurry is coal 64% by mass percentage, sodium hydroxide 0.2%, manganous sulfate 0.25%, SODIUMNITRATE 0.5%, water 35.05%.
Coal is machined to less than 40 microns, in proportion each component is stirred simultaneously, spray in stove through pneumatic nebulization spray gun again through pulping equipment input channel and get final product Thorough combustion.30% is improved through inspection thermo-efficiency.Fire box temperature improves 100-180 DEG C.
Claims (3)
1. a high heating value coal water slurry, is characterized in that, comprises coal, sodium hydroxide, manganous sulfate, SODIUMNITRATE and water, is coal 55 ~ 65% by mass percentage, sodium hydroxide 0.1 ~ 0.3%, manganous sulfate 0.25 ~ 0.45%, SODIUMNITRATE 0.35 ~ 0.55%, and all the other are water.
2. a high heating value coal water slurry, is characterized in that, is coal 60% by mass percentage, sodium hydroxide 0.2%, manganous sulfate 0.35%, SODIUMNITRATE 0.45%, water 39%.
3. a kind of high heating value coal water slurry according to claim 1 and 2, is characterized in that, described coal is the coal dust that granularity is less than 40 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510126552.1A CN104762114A (en) | 2015-03-20 | 2015-03-20 | High-calorific-value coal water slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510126552.1A CN104762114A (en) | 2015-03-20 | 2015-03-20 | High-calorific-value coal water slurry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104762114A true CN104762114A (en) | 2015-07-08 |
Family
ID=53644217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510126552.1A Pending CN104762114A (en) | 2015-03-20 | 2015-03-20 | High-calorific-value coal water slurry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104762114A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109054922A (en) * | 2018-09-03 | 2018-12-21 | 辽宁工程技术大学 | A kind of coal dust cracking cleanser |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323807A (en) * | 2008-07-31 | 2008-12-17 | 王荣方 | Fire coal energy-saving emission-reducing synergistic agent |
| CN101812338A (en) * | 2010-04-28 | 2010-08-25 | 陕西科技大学 | Coal water slurry addition agent, preparation method thereof and coal water slurry based on same |
-
2015
- 2015-03-20 CN CN201510126552.1A patent/CN104762114A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323807A (en) * | 2008-07-31 | 2008-12-17 | 王荣方 | Fire coal energy-saving emission-reducing synergistic agent |
| CN101812338A (en) * | 2010-04-28 | 2010-08-25 | 陕西科技大学 | Coal water slurry addition agent, preparation method thereof and coal water slurry based on same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109054922A (en) * | 2018-09-03 | 2018-12-21 | 辽宁工程技术大学 | A kind of coal dust cracking cleanser |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150708 |