CN101735877B - Fire coal additive and preparation method thereof - Google Patents
Fire coal additive and preparation method thereof Download PDFInfo
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- CN101735877B CN101735877B CN 200910231034 CN200910231034A CN101735877B CN 101735877 B CN101735877 B CN 101735877B CN 200910231034 CN200910231034 CN 200910231034 CN 200910231034 A CN200910231034 A CN 200910231034A CN 101735877 B CN101735877 B CN 101735877B
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Abstract
The invention discloses a fire coal additive comprising the following components in parts by weight: 5-13 parts of coal residue modifier, 6-19 parts of oxidizer, 10-25 parts of sulphur fixing agent and 4-10 parts of catalyst, wherein, the coal residue modifier is composed of magnesium chloride and sodium sulfate; the oxidizer comprises potassium nitrate, potassium permanganate and sodium chlorate; the sulphur fixing agent comprises ethanolamine, isopropanolamine and calcium hydroxide; the catalyst is cerous nitrate. The invention also discloses a method for preparing the additive. The additive of the invention has three functions of catalysis combustion, reduction of pollutant discharge and maintaining of clean equipment, has less additive amount, simple preparation process and low cost, can be widely used in various coal-fired boilers, such as pulverized coal furnace, chain furnace and recirculation fluidized bed and the like.
Description
Technical field
The present invention relates to a kind of additive for fire coal and preparation method thereof.
Background technology
Coal is the main energy sources of China, in China's economic construction, plays crucial effect, accounts for more than 75% of total energy consumption.Because economic condition limit, the coal combustion technology backwardness, equipment is outmoded to wear out, and causing China's unit consumption of energy amount is several times of developed country, has had a strong impact on the effective rate of utilization of coal in China.In addition, when especially the living heat of coal burning is converted into heat energy with chemical energy in exploitation, application process, produced a large amount of pollutents again, caused China's environmental quality to descend, many regional acid rain areas continue to enlarge.Environment protection has been put into the strategy of sustainable development.To industrial coal burning boiler flue dust and SO
2The agenda of governments at all levels and environmental administration has been listed in the control of discharging in.Additive for fire coal is just meeting the environmental protection and energy saving policy of country; China is producing coal consumption coal big country, and annual coal consumption amount is approximately 600,000,000 tons, along with the day by day attention of the universe to environment protection; Clearly advocate and carry out using clean coal in the coal-fired industry Chinese government; No matter the burning raw coal is phased out in industry and civilian, and is imperative.Realize to burn clean coal first advanced person, suitable mechanical means will be arranged; Second will have scientific and reasonable additive for fire coal prescription.Though present employed additive for fire coal multipotency plays energy-conservation combustion-supporting effect; But still have that additive amount is big, water insoluble, problem such as the product behind the fired coal combustion is prone to the coking difficult treatment, energy-conservation combustion-supporting effect is undesirable, thereby it is applied and receives certain limitation.
Summary of the invention
The present invention is the problems referred to above in the applying of the present additive for fire coal of solution; Provide a kind of and can reach energy-conservation combustion-supporting effect, can make the product behind the fired coal combustion not produce the additive for fire coal that coking is easy to remove and can effectively reduce environmental pollution again, the present invention also provides the preparation method of this additive for fire coal.
Additive for fire coal of the present invention is made up of the raw material of following weight parts:
5～13 parts of cinder modifying agents;
6～19 parts of ignition dopes;
10～25 parts of sulphur-fixing agents;
4～10 parts of catalyzer;
Wherein, said cinder modifying agent is made up of magnesium chloride and sodium sulfate; Said ignition dope is made up of saltpetre, potassium permanganate and VAL-DROP; Said sulphur-fixing agent is made up of thanomin, Yi Bingchunan and calcium hydroxide; Said catalyzer is a cerous nitrate.
In the additive for fire coal of the present invention, preferably the weight of each raw material is formed as follows:
Said cinder modifying agent weight consists of:
2～5 parts in magnesium chloride
3～8 parts in sodium sulfate;
The preferred weight of said ignition dope consists of:
3～6 parts in saltpetre
1～5 part in potassium permanganate
2～8 parts in VAL-DROP;
The preferred weight of said sulphur-fixing agent consists of:
4～8 parts of thanomins
3～7 parts of Yi Bingchunans
3～10 parts in calcium hydroxide.
Employed cinder modifying agent magnesium chloride and sodium sulfate generate the melts that comes off easily after can making fired coal combustion among the present invention, drain with flue gas, leave over down many small spaces, make coking become shortcake and are easy to remove, and have effectively prevented boiler coke.Ignition dope adopts saltpetre, potassium permanganate, VAL-DROP to mix and uses, and can realize decomposing under the differing temps combustion-supporting.Used sulphur-fixing agent is to adopt with alkyl alcoholamine compound and the collaborative mode of using of calcium hydroxide, can not only remove sour gas H
2S, better to the organosulfur effect that removes in the coal simultaneously.The composite use of cinder modifying agent, ignition dope and sulphur-fixing agent does not produce usually the raw material problem that is mixed, and effects of energy conservation and environmental protection is remarkable.
The preparation method of additive of the present invention is at normal temperatures and pressures, above material is crossed 60 mesh sieves according to proportional quantity through fragmentation also mix in the water that is dissolved in 8～20 times, and the back that stirs forms solution and gets final product.
The addition that uses of additive of the present invention is benchmark with coal-fired weight, and addition is 0.2-1%.
The invention has the beneficial effects as follows:
(1) additive of the present invention has catalytic combustion-supporting concurrently, reduces pollutant emission and keeps the equipment cleaning triple role;
(2) add additive of the present invention combustion flame temperature is improved more than 160 ℃, coal combustion efficient improves more than 12%, reduces boiler slag carbon content more than 16%, reduces SO
2Quantity discharged 15%～60%, coal saving rate 15%～25%;
(3) additive of the present invention is mixed conveniently, and addition is little, and the technology cost is low.
(4) method of use is simple; Need not other equipment; Both the jet apparatus of existing device capable of using sprayed into coal dust, also can in travelling belt transfer the fuel process, add with the mode of spraying, and can be widely used in various coal firing boilers such as coal-powder boiler, chain furnace and circulating fluidized bed.
Embodiment
Embodiment 1
Raw materials used weight is formed as follows:
2 parts in magnesium chloride;
3 parts in sodium sulfate;
3 parts in saltpetre;
1 part in potassium permanganate;
8 parts in VAL-DROP;
8 parts of thanomins;
7 parts of Yi Bingchunans;
3 parts in calcium hydroxide;
4 parts of cerous nitrates;
At normal temperatures and pressures, above material was pulverized the mixing of 60 mesh sieves be dissolved in the water of 8 times of weight, the back that stirs forms solution and promptly gets additive for fire coal product one of the present invention.
Embodiment 2
Raw materials used weight is formed as follows:
5 parts in magnesium chloride;
8 parts in sodium sulfate;
6 parts in saltpetre;
5 parts in potassium permanganate;
2 parts in VAL-DROP;
4 parts of thanomins;
3 parts of Yi Bingchunans;
3 parts in calcium hydroxide;
4 parts of cerous nitrates;
At normal temperatures and pressures, above material was pulverized the mixing of 60 mesh sieves be dissolved in the water of 10 times of weight, the back that stirs forms solution and promptly gets additive for fire coal product two of the present invention.
Embodiment 3
Raw materials used weight is formed as follows:
4 parts in magnesium chloride;
5 parts in sodium sulfate;
4 parts in saltpetre;
3 parts in potassium permanganate;
6 parts in VAL-DROP;
5 parts of thanomins;
4 parts of Yi Bingchunans;
6 parts in calcium hydroxide;
6 parts of cerous nitrates;
At normal temperatures and pressures, above material was pulverized the mixing of 60 mesh sieves be dissolved in the water of 10 times of weight, the back that stirs forms solution and promptly gets additive for fire coal product three of the present invention.
Embodiment of the invention 1-3 gained additive product (addition is 0.5%) is added to bunker coal and do not adopt the fire coal of additive of the present invention under same boiler equal conditions, to use, detect each combustionproperty index result to such as table 1: (the experiment type of furnace: the ciculation fluidized type of the 75/H of boiler factory, Wuxi)
Table 1: the measure of merit that uses product of the present invention
Claims (1)
1. additive for fire coal; It is characterized in that: at normal temperatures and pressures; 5 ~ 13 weight part cinder modifying agents, 6 ~ 19 weight part ignition dopes, 10 ~ 25 weight part sulphur-fixing agents, 4 ~ 10 weight part catalyzer are crossed 60 mesh sieves through fragmentation also mix in the water that is dissolved in 8 ~ 20 times, the back that stirs forms solution and gets final product;
Wherein, the weight of said cinder modifying agent consists of:
2 ~ 5 parts in magnesium chloride
3 ~ 8 parts in sodium sulfate;
The weight of said ignition dope consists of:
3 ~ 6 parts in saltpetre
1 ~ 5 part in potassium permanganate
2 ~ 8 parts in VAL-DROP;
The weight of said sulphur-fixing agent consists of:
4 ~ 8 parts of thanomins
3 ~ 7 parts of Yi Bingchunans
3 ~ 10 parts in calcium hydroxide;
Said catalyzer is a cerous nitrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910231034 CN101735877B (en) | 2009-12-14 | 2009-12-14 | Fire coal additive and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910231034 CN101735877B (en) | 2009-12-14 | 2009-12-14 | Fire coal additive and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN101735877A CN101735877A (en) | 2010-06-16 |
| CN101735877B true CN101735877B (en) | 2012-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910231034 Active CN101735877B (en) | 2009-12-14 | 2009-12-14 | Fire coal additive and preparation method thereof |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191111B (en) * | 2011-05-11 | 2013-04-10 | 王国群 | High temperature reduced type composite fire coal sulfur fixing agent and preparation method thereof |
| CN102492520B (en) * | 2011-12-07 | 2014-08-06 | 王变成 | Energy-saving ecological energy fuel |
| CN102444899A (en) * | 2011-12-26 | 2012-05-09 | 上海锅炉厂有限公司 | Boiler combustion method capable of creating aerobic condition |
| CN102827666B (en) * | 2012-09-20 | 2014-02-05 | 赵冠军 | Liquid coal combustion improver |
| CN111359653A (en) * | 2020-04-07 | 2020-07-03 | 中海油天津化工研究设计院有限公司 | Catalyst for improving desulfurization performance of calcium oxide |
| CN112742204B (en) * | 2020-12-30 | 2022-07-19 | 铜陵铜冠环保科技有限公司 | Flue gas sulfur-fixing agent used in sodium sulfide synthesis process and preparation process thereof |
| CN117487594A (en) * | 2023-12-29 | 2024-02-02 | 呼伦贝尔金新化工有限公司 | Novel fluxing agent adding system and method for lignite pressurized gasification |
Citations (4)
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| CN1163925A (en) * | 1996-11-15 | 1997-11-05 | 覃戊文 | Combustion enhancing sweetening agent |
| CN1252431A (en) * | 1998-10-23 | 2000-05-10 | 刘福全 | Coal and fuel economizing comburant and purifying water solution |
| CN1408673A (en) * | 2002-08-22 | 2003-04-09 | 沈其源 | Flame retardant board and its producing method |
| EP1535984A2 (en) * | 2003-11-25 | 2005-06-01 | Afton Chemical Corporation | Mixed metal catalyst additive and method for use in hydrocarbonaceous fuel combustion system |
-
2009
- 2009-12-14 CN CN 200910231034 patent/CN101735877B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1163925A (en) * | 1996-11-15 | 1997-11-05 | 覃戊文 | Combustion enhancing sweetening agent |
| CN1252431A (en) * | 1998-10-23 | 2000-05-10 | 刘福全 | Coal and fuel economizing comburant and purifying water solution |
| CN1408673A (en) * | 2002-08-22 | 2003-04-09 | 沈其源 | Flame retardant board and its producing method |
| EP1535984A2 (en) * | 2003-11-25 | 2005-06-01 | Afton Chemical Corporation | Mixed metal catalyst additive and method for use in hydrocarbonaceous fuel combustion system |
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| CN101735877A (en) | 2010-06-16 |
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Effective date of registration: 20191029 Address after: 207-3, floor 2, No.19 B, Chegongzhuang West Road, Haidian District, Beijing 100044 Patentee after: Beijing Sino European Institute of science and technology Address before: 250101 Shandong city of Ji'nan province high tech Zone (Licheng District) Xinluo Avenue No. 786 Patentee before: Xinghuo Sci. & Tech. Research Inst., Jinan Dev. Zone |
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