CN1121951A - Combustion adjuvant and fuel contg. it - Google Patents
Combustion adjuvant and fuel contg. it Download PDFInfo
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- CN1121951A CN1121951A CN 94106288 CN94106288A CN1121951A CN 1121951 A CN1121951 A CN 1121951A CN 94106288 CN94106288 CN 94106288 CN 94106288 A CN94106288 A CN 94106288A CN 1121951 A CN1121951 A CN 1121951A
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- cinder
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Abstract
The combustion adjuvant for full combustion of coal, cinder and coal ash contains powdered iron oxide, wood dust, calcium oxide and strong acid. The fuel containing said adjuvant features low cost, easy ignition, durable combustion, high capacity of generating heat and less smoke.
Description
The present invention relates to a kind of fuel that is used for the combustion-supporting additive of coal, coal gangue, cinder or coal ash and contains this additive.
Coal is a kind of very important energy, and it has obtained widely using already in big or small industrial and mining enterprises and daily life etc., so research and development and rationally utilize coal resources are played immeasurable effect to the Economic development meeting.People have made many effort in this regard, do the fuel of fluidizing furnace as the raw coal that adopts lower calorific value and the mixture of cinder completely of not burning, and this measure is increased the benefit and played certain effect saving coal.But this method narrow application range, and the combustionproperty of fuel itself be there is no remarkable improvement.
The coal of China is because of place of production difference, and is various in style, and quality also has very big difference.Thermal value have more than 7000 kilocalories/kilogram, have below 3000 kilocalories/kilogram.The various stoves of factory, because of firing the required temperature difference of product, used ature of coal is also different, so the waste residue carbon content of discharging is different, but general carbon content is 25-30% (weight), have in addition more than 30% (weight).These waste residues generally are to buy the waste residue place by factory, transport outward with car.The expense of 1 year outward transport waste residue is appreciable.So not only wasted energy but also wasted fund, also caused environmental issue.
Along with development and national economy, to the also constantly increase of demand of coal, particularly industrial high-quality coal consumption is bigger.Most geographic civilian coals have consumed quite a large amount of industrial coals, and industrial coal price lattice height, as doing domestic fuel with industrial coal, have also increased peasant and civic economical load.
In addition, existing coal commonly used also exist because of burn insufficient cause to smolder and produce a large amount of CO problems such as carbon monoxide poisoning easily take place.
The objective of the invention is to solve above-mentioned problems of the prior art, a kind of combustion-supporting additive of coal, coal gangue, cinder or coal ash that is used for is provided, this additive can make it burn more fully.
Another object of the present invention provides a kind of fuel that contains perfect combustion catalyzer.
At the problems of the prior art, we have carried out many-sided research trial to cinder, coal ash, find to allocate them into an amount of raw coal, in the presence of sufficient oxygen, can fully burn, and combustion time is long, thermal discharge is big, this illustrates that they can not clean-burning reason be anoxics generally.
Through a large amount of tests, we find that the material that is made into by ferric oxide, calcium oxide and nitric acid etc. can make coal, coal gangue, cinder or coal ash fully burn as additive, described weight of additive prescription is brown iron oxide 30-70%, wood chip 0-25%, calcium oxide 10-45%, nitric acid 1-5% and water 5-20%.Wherein wood chip is not essential composition, preferred 5-25%.
Used ferric oxide can [contain Fe approximately with the industrial waste sulfate slag in the additive of the present invention
3O
4And Fe
2O
350% (weight)], used wood chip can be sawdust.
The aqueous solution that the preparation method of additive of the present invention is preferably ferric oxide and nitric acid stirs, and adds calcium oxide and wood chip and stirring then in this mixture.
Described additive can be allocated into cinder (or coal ash or coal or its mixture) etc., through thorough mixing, make various coal fuel as the coal that looses (shape looses), coal cinder (bulk), coal briquette (spherical) or honeycomb briquette (cellular), be used for domestic burners and dwarf boiler etc.A kind of optimum ratio of coal fuel is for containing the additive of 1-5% (weight), the clay of 15-25% (weight), the thermal value of 20-40% (weight) is the raw coal more than 5000 kilocalories/kilogram, and the cinder of 40-50% (weight) (or mixture of coal ash or cinder and coal ash).The preferred weight proportioning that above-mentioned coal fuel also can contain the another kind of coal fuel of an amount of water is: contain the described additive of 1-5%, the clay of 10-30% and the thermal value of 65-89% are the low grade coal of 2500-5000 kilocalorie/kilogram.Another kind of fuel is the described additive that contains 3-5% (weight), and the coal gangue of 95-97% (weight).
The described coal fuel that contains additive of the present invention is at the burning initial stage, and the wood chip of low ignition point is combustion earlier, reach certain temperature after, carbon and kickbacks such as ferric oxide and airborne oxygen in coal and the cinder (coal ash).The burning of wood chip has also increased the voidage of coal briquette etc., makes reaction carry out evenly fully, and burning fully.Advantage such as that this fuel has is cheap, ignition is fast, combustion time is long and thermal value is big.Consider from the environmental protection aspect, handled waste residue, purified social environment.From considering economically, concerning enterprise, reduced the expense of the human and material resources of outward transport waste residue and occupied ground etc., concerning peasant and citizen, reduced the economical load of buying the high price coal.The more important thing is to make the energy of the throwing away sufficient utilization of having got back, played certain active effect to the recycling of the energy with to saving a large amount of fat coals.
In order to understand the present invention better, with concrete example and data the present invention and above-mentioned and other advantage thereof are described below.
Embodiment
Prepare additive of the present invention by following formulation by weight, be mixed with additive of the present invention by 60 jin of ferric oxide, 10 jin of wood chips, 10 jin of calcium oxide, 3 jin of nitric acid and 17 jin of water.4 parts of (weight) above-mentioned additives are mixed with the raw coal of the clay of 16 parts (weight), 30 parts (weight) and the slag (or ashes) of 50 parts (weight), also can add an amount of water, stir, make coal briquette.As a comparison case be the coal briquette of clay that contains the raw coal and 20% (weight) of 80% (weight).Test-results is as shown in the table.
Table 1
(annotate: the of the present invention wet coal briquette that contains suitable quantity of water also can fully burn)
| Light-off time (minute) | Combustion time (minute) | Coal smoke | Fire box temperature (℃) | |
| Contain cinder fuel | ??????10 | ??90—120 | Do not have | ?????1200 |
| Contain coal ash fuel | ??????8 | ??80—100 | Do not have | ?????1150 |
| Comparative Examples | ????15—20 | ??70—90 | Amount is big | ?????1100 |
As can be seen from the above table, with the coal briquette that contains additive of the present invention of cinder or coal ash preparation, ignition is fast, combustion time is long, thermal value is big, coal smoke is few, and ash content is few, and the coal briquette that price is made than raw coal hangs down 30-40%.The raw coal consumption only be in the Comparative Examples raw coal consumption 2/5ths, saved raw coal widely.
Embodiment 2
Embodiment 1 is pressed in the preparation of additive.With the thermal value of described 4 parts of (weight) additives and 10 parts of clays and 86 parts is that 3500 kilocalories/kilogram low grade coal mixes, and makes honeycomb briquette.Comparative Examples is that the thermal value that contains 14% clay is 3500 kilocalories/kilogram a low grade coal (not containing additive), and the result is as follows:
Table 2
| Light-off time (minute) | Combustion time (minute) | Coal smoke | Fire box temperature (℃) | |
| Contain low grade coal fuel | ????6-9 | ??100—120 | Do not have | ????1200 |
| Comparative Examples | ???15—20 | ??70—90 | Have | ????1100 |
Above-mentioned example only plays illustration, is not construed as limiting the invention.Undoubtedly those skilled in the art can carry out various changes and improvements to the present invention by foregoing according to the present invention, as other effective constituent of further adding, but still does not break away from the protection domain of essence of the present invention and claim.
Claims (7)
1, a kind of combustion-supporting additive is characterized in that formulation by weight is: ferric oxide 30-70%, wood chip 0-25%, calcium oxide 10-45%, nitric acid 1-5%, water 5-20%.
2, a kind of additive as claimed in claim 1 is characterized in that wherein wood chip is 5-25%.
3, a kind of additive as claimed in claim 1 is characterized in that ferric oxide wherein is the ferric oxide in the sulfate slag.
4, a kind of fuel that contains right requirement 1,2 or 3 described additives, it is characterized in that containing the described additive of 1-5% (weight), the clay of 15-25% (weight), the thermal value of 20-40% (weight) is the raw coal more than 5000 kilocalories/kilogram, and the cinder of 40-50% (weight) (or mixture of coal ash or cinder and coal ash).
5, a kind ofly contain the fuel that right requires 1,2 or 3 described additives, it is characterized in that containing the described additive of 1-5% (weight), the clay of 10-30% (weight), and the thermal value of 65-89% (weight) is the low grade coal of 2500-5000 kilocalorie/kilogram.
6, a kind of fuel that contains right requirement 1,2 or 3 described additives is characterized in that containing the described additive of 3-5% (weight) and the coal gangue of 95-97% (weight).
7, a kind of as claim 4 or 5 described fuel, it is characterized in that wherein raw coal is a coal gangue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94106288 CN1121951A (en) | 1994-06-08 | 1994-06-08 | Combustion adjuvant and fuel contg. it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94106288 CN1121951A (en) | 1994-06-08 | 1994-06-08 | Combustion adjuvant and fuel contg. it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1121951A true CN1121951A (en) | 1996-05-08 |
Family
ID=5032465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94106288 Pending CN1121951A (en) | 1994-06-08 | 1994-06-08 | Combustion adjuvant and fuel contg. it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1121951A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1058983C (en) * | 1997-09-17 | 2000-11-29 | 四川鉴威篁氏净化粉有限责任公司 | Efficient purifying granulated coal and its preparation method |
| CN1064394C (en) * | 1997-01-23 | 2001-04-11 | 华中理工大学 | Method for making coal combustion catalyst promoting agent |
| GB2462978A (en) * | 2008-02-07 | 2010-03-03 | Internat Innovative Technologi | Fuel enrichment process |
| CN103834454A (en) * | 2014-03-24 | 2014-06-04 | 舒彩陶 | Additive capable of desulfurizing, denitrifying, abating smoke, removing dust and saving coal and production and application processes thereof |
| CN104232240A (en) * | 2014-09-24 | 2014-12-24 | 梁万泉 | Multifunctional combustion-supporting agent |
-
1994
- 1994-06-08 CN CN 94106288 patent/CN1121951A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1064394C (en) * | 1997-01-23 | 2001-04-11 | 华中理工大学 | Method for making coal combustion catalyst promoting agent |
| CN1058983C (en) * | 1997-09-17 | 2000-11-29 | 四川鉴威篁氏净化粉有限责任公司 | Efficient purifying granulated coal and its preparation method |
| GB2462978A (en) * | 2008-02-07 | 2010-03-03 | Internat Innovative Technologi | Fuel enrichment process |
| GB2462978B (en) * | 2008-02-07 | 2011-07-13 | Internat Innovative Technologies Ltd | Fuel enrichment process |
| CN103834454A (en) * | 2014-03-24 | 2014-06-04 | 舒彩陶 | Additive capable of desulfurizing, denitrifying, abating smoke, removing dust and saving coal and production and application processes thereof |
| CN103834454B (en) * | 2014-03-24 | 2015-05-20 | 舒彩陶 | Additive capable of desulfurizing, denitrifying, abating smoke, removing dust and saving coal and production and application processes thereof |
| CN104232240A (en) * | 2014-09-24 | 2014-12-24 | 梁万泉 | Multifunctional combustion-supporting agent |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |