CN105925332B - A kind of efficiency of sulfur retention composite adhesive for briquette - Google Patents
A kind of efficiency of sulfur retention composite adhesive for briquette Download PDFInfo
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- CN105925332B CN105925332B CN201610502680.6A CN201610502680A CN105925332B CN 105925332 B CN105925332 B CN 105925332B CN 201610502680 A CN201610502680 A CN 201610502680A CN 105925332 B CN105925332 B CN 105925332B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
- C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
- C10L5/10—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders
- C10L5/105—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with a mixture of organic and inorganic binders
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L9/00—Treating solid fuels to improve their combustion
- C10L9/10—Treating solid fuels to improve their combustion by using additives
- C10L9/12—Oxidation means, e.g. oxygen-generating compounds
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- Combustion & Propulsion (AREA)
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
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Abstract
The present invention provides a kind of efficiency of sulfur retention composite adhesive for briquette, compounded as raw material using sodium humate, lime stone, calcium hydroxide, sodium carbonate, sodium chloride, potassium permanganate, frerrous chloride.In the briquette binder, various raw materials mutually cooperate with, and mutually promote, and not only adhesive property is strong, but also sulfur-fixing rate is high, and combustion-supporting property is good.It is less than 2% coal for any sulfur content, when the addition of compound binding agent is 13% ~ 15%, you can reach 90% sulfur-fixing rate, there is very wide adaptability.And the indexs such as intensity, thermal stability, calorific value of moulded coal also meet coal briquette for civillan use standard.
Description
Technical field
The present invention relates to a kind of briquette binder, more particularly to a kind of efficiency of sulfur retention composite adhesive for briquette and its preparation side
Method.
Background technology
The method of the coal-fired sulfur dioxide release of external control at present is mainly flue gas desulfurization technique, and Technical comparing is ripe, but
Because equipment investment and operating cost are big, limit it and be widely used.The country is to the solid sulphur of burning briquette mainly using combustion
The method that sulphur-fixing agent is added in coal, but it is mainly limited to low-sulfur coal, and also sulfur-fixing rate is nor very high.Sulfur capture agent for briquette is mainly
Calcium series sulfur-fixation agent, such as lime stone or calcium oxide single substance, desulfurization efficiency is low, and only 50% or so, and when temperature reaches
At 1250 DEG C, the calcium sulfate of generation can decompose, and sulfur dioxide is caused to discharge again, make sulfur-fixing rate degradation.Use chemical solution
Liquid carries out complex modulated to single calcium based sulphur-fixation reagent and on the basis of additive is added, sulfur capturing ratio of briquette maximum also only reaches 70%
Left and right, and the method preparation process is relative complex, is not appropriate for mass producing.It, may for the high coal of sulfur content
Therefore sulphur-fixing agent additive amount is recalculated, and this method will make moulded coal have higher sulfur-fixing rate, it is necessary to sulphur-fixing agent be made to add
Enter amount and be far longer than theory demands amount, result caused in this way, which is exactly moulded coal calorific value, reduces serious, stability reduction, grey quantity of slag increasing
It is more.
Invention content
It is low the purpose of the present invention is being directed to briquette binder sulfur-fixing rate in the prior art, to different sulfur content coal adaptabilities
The problem of difference, provides a kind of preparation method of efficiency of sulfur retention composite coal binder, to improve sulfur capturing ratio of briquette, and takes into account raising
The calorific value and stability of moulded coal.
The efficiency of sulfur retention composite adhesive for briquette of the present invention, is with sodium humate, lime stone, calcium hydroxide, sodium carbonate, chlorination
Sodium, potassium permanganate, frerrous chloride are that raw material compounds.Wherein sodium humate is organic binder, because sodium humate is one
Black solid powder of the kind with suitable strong basicity, plays solid sulfur catalysis in the removing of sulfur dioxide, is using humic acid
After sodium is as organic binder, the utilization rate of sulphur-fixing agent is made to significantly improve.Lime stone is inorganic binder and solid sulphur with calcium hydroxide
Agent, the two compounding can make moulded coal have sulfur fixation in entire combustion process：Sulfur fixation is main from the low-temperature burning stage
It is calcium hydroxide, the mainly lime stone of sulfur fixation from the high-temp combustion stage.Sodium Carbonate Additive, frerrous chloride, sodium chloride etc.
It can promote the progress of sulfur fixation, inhibit calcium sulfate pyrolytic.Potassium permanganate can discharge active oxygen, can promote moulded coal
Fully burning.In briquette binder, various raw materials mutually cooperate with, and mutually promote, and can not only make different types of coal stable molding, and
Sulfur-fixing rate is high, and briquette strength is high, and thermal stability is good.
In order to reach more satisfactory sulfur-fixing rate, and take into account the slight of moulded coal, calorific value and stability, each raw material press with
Lower mass percent is matched：
Sodium humate 48% ~ 55%, lime stone 10% ~ 15%, calcium hydroxide 15% ~ 21%, sodium carbonate 5% ~ 7%, sodium chloride 2% ~ 3%,
Frerrous chloride 1% ~ 1.5%, potassium permanganate 1% ~ 1.5%.
In order to reach better effect, sodium humate can be used super sodium humate, water-soluble >=95%, content >=
70%, shiny black crystal sheet.
After testing, the composite adhesive for briquette that the present invention prepares has good adhesive property, sulfur-fixing rate height, combustion-supporting property
It is good.It is less than 2% coal for any sulfur content, when the addition of compound binding agent is 13% ~ 15%, you can reach 90% solid sulphur
Rate has very wide adaptability.And the indexs such as intensity, thermal stability, calorific value of moulded coal also meet coal briquette for civillan use standard.
Specific implementation mode
Below by specific embodiment to the preparation method and performance of efficiency of sulfur retention composite coal binder of the present invention make into
One step explanation.
Embodiment 1
51 parts of super sodium humate, 13 parts of agstone, 21 parts of slaked lime powder, 6 parts of sodium carbonate, Gao Meng are taken by mass parts
3 parts of sour potassium, 3 parts of frerrous chloride, 3 parts of sodium chloride；It is uniformly mixed, obtains compound binding agent（Dry powder）.
It is 1.08% fine coal coal sample to take sulfur content, and the compound binding agent of addition raw coal quality 15% stirs evenly, and adds 30%
Water is again stirring for, pressing mold molding.Detect moulded coal commercial performance：Moulded coal content of ashes is 20.2%, volatility 36.0%, fever
Amount is 27.8MJ/Kg, and fixed carbon content is 45.5%, and compared with raw coal, content of ashes increases by 1.7%, and volatile matter increases by 5.2%.Type
It is 4.35% that coal, which dries sulfur content in base ash content, sulfur-fixing rate 91.59%, and moulded coal cold pressing strength is 310N/, fixed carbon content drop
Low 4.5%, but calorific value reduced by only 2.2MJ/kg.
Embodiment 2
49 parts of super sodium humate, 25 parts of agstone, 10 parts of slaked lime powder, 7 parts of sodium carbonate, Gao Meng are taken by mass fraction
3 parts of sour potassium, 3 parts of frerrous chloride, 3 parts of sodium chloride are uniformly mixed, obtain compound binding agent（Dry powder）.
It is 1.08% coal sample to take sulfur content, and the compound binding agent of addition raw coal amount 15% stirs evenly, and adds 30% water, then
Secondary stirring, pressing mold molding.Detect moulded coal commercial performance：Moulded coal content of ashes is 20.5%, and volatilization is divided into 34.0%, and calorific value is
27.5MJ/kg, fixed carbon content is 43.2%, and compared with raw coal, content of ashes increases by 2.0%, and volatile matter increases by 3.2%, and moulded coal is dry
Sulfur content is 4.41% in dry base ash content, sulfur-fixing rate 90.16%, and moulded coal cold pressing strength is 290N/, and fixed carbon content reduces
4.8%, but calorific value reduced by only 2.5MJ/kg.
Embodiment 3
51 parts of super sodium humate, 13 parts of agstone, 21 parts of slaked lime powder, 6 parts of sodium carbonate, permanganic acid are taken by mass parts
3 parts of potassium, 3 parts of frerrous chloride, 3 parts of sodium chloride are uniformly mixed, obtain compound binding agent（Dry powder）.
It is 2.12% coal sample to take sulfur content, and the compound binding agent of addition raw coal amount 15% stirs evenly, and adds 30% or so
Water is again stirring for, pressing mold molding.Moulded coal commercial performance is detected, moulded coal content of ashes is 26.7%, and volatilization is divided into 43.7%, fever
Amount is 20.0MJ/kg, and fixed carbon content is 41.3%, and compared with raw coal, content of ashes increases by 2.8%, and volatile matter increases by 5.5%,
It is 5.71% that moulded coal, which dries sulfur content in base ash content, sulfur-fixing rate 90.77%, and moulded coal cold pressing strength is 303N/, fixed carbon content
5.7% is reduced, but calorific value only reduces 2.06MJ/kg.
Embodiment 4
50 parts of super sodium humate, 19 parts of agstone, 15 parts of slaked lime powder, 6 parts of sodium carbonate, Gao Meng are taken by mass fraction
3 parts of sour potassium, 3 parts of frerrous chloride, 3 parts of sodium chloride are uniformly mixed, obtain compound binding agent（Dry powder）.
It is 2.12% coal sample to take sulfur content, and the compound binding agent of addition raw coal amount 15% stirs evenly, and adds 30% water, then
Secondary stirring, pressing mold molding.Moulded coal commercial performance is detected, moulded coal content of ashes is 26.6%, and volatilization is divided into 43.3%, and calorific value is
20.1MJ/kg, fixed carbon content is 41.5%, and compared with raw coal, content of ashes increases by 2.7%, and volatile matter increases by 5.2%.Moulded coal is dry
Sulfur content is 5.59% in dry base ash content, sulfur-fixing rate 89.6%.Moulded coal cold pressing strength is 296N/, and fixed carbon content reduces
5.5%, but calorific value only reduces 2.0MJ/kg.
Claims (2)
1. a kind of efficiency of sulfur retention composite adhesive for briquette is with sodium humate, lime stone, calcium hydroxide, sodium carbonate, sodium chloride, height
Potassium manganate, frerrous chloride are that raw material compounds；Each raw material is matched by following mass percent：
Sodium humate 48% ~ 55%, lime stone 10% ~ 15%, calcium hydroxide 15% ~ 21%, sodium carbonate 5% ~ 7%, sodium chloride 2% ~ 3%, chlorination
Ferrous iron 1% ~ 1.5%, potassium permanganate 1% ~ 1.5%.
2. efficiency of sulfur retention composite adhesive for briquette as described in claim 1, it is characterised in that：Sodium humate is super humic acid
Sodium, water-soluble >=95%, content >=70%, shiny black crystal sheet.
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| CN201610502680.6A CN105925332B (en) | 2016-07-01 | 2016-07-01 | A kind of efficiency of sulfur retention composite adhesive for briquette |
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| CN201610502680.6A CN105925332B (en) | 2016-07-01 | 2016-07-01 | A kind of efficiency of sulfur retention composite adhesive for briquette |
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| CN105925332B true CN105925332B (en) | 2018-11-02 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009043108A1 (en) * | 2007-10-04 | 2009-04-09 | Indigo Technologies Group Pty Ltd | Removal of pollutants from a gas flow |
| CN102191111A (en) * | 2011-05-11 | 2011-09-21 | 王国群 | High temperature reduced type composite fire coal sulfur fixing agent and preparation method thereof |
| CN103691288A (en) * | 2014-01-21 | 2014-04-02 | 高同柱 | Manufacturing method for desulfurization and denitrification agent additive by limestone-gypsum method |
-
2016
- 2016-07-01 CN CN201610502680.6A patent/CN105925332B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009043108A1 (en) * | 2007-10-04 | 2009-04-09 | Indigo Technologies Group Pty Ltd | Removal of pollutants from a gas flow |
| CN102191111A (en) * | 2011-05-11 | 2011-09-21 | 王国群 | High temperature reduced type composite fire coal sulfur fixing agent and preparation method thereof |
| CN103691288A (en) * | 2014-01-21 | 2014-04-02 | 高同柱 | Manufacturing method for desulfurization and denitrification agent additive by limestone-gypsum method |
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| CN105925332A (en) | 2016-09-07 |
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Effective date of registration: 20200417 Address after: 734200 front room, Jiayuan community, Banqiao Village, Banqiao Town, Linze County, Zhangye City, Gansu Province Patentee after: LINZE FENJUN MINING Co.,Ltd. Address before: 730070 Anning Road, Anning District, Gansu, Lanzhou, China, No. 967 Patentee before: Northwest Normal University |
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Denomination of invention: A high-efficiency sulfur fixing briquette composite binder Effective date of registration: 20230421 Granted publication date: 20181102 Pledgee: Linze Longxin Financing Guarantee Co.,Ltd. Pledgor: LINZE FENJUN MINING Co.,Ltd. Registration number: Y2023980038585 |
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