CN105820855A - Dry powder composite type coal caking agent and preparation method thereof - Google Patents
Dry powder composite type coal caking agent and preparation method thereof Download PDFInfo
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- CN105820855A CN105820855A CN201610192213.8A CN201610192213A CN105820855A CN 105820855 A CN105820855 A CN 105820855A CN 201610192213 A CN201610192213 A CN 201610192213A CN 105820855 A CN105820855 A CN 105820855A
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- Prior art keywords
- dry powder
- powder composite
- preparation
- caking agent
- coal
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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
- 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
- C10L5/12—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with 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
- 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
- C10L5/14—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with organic binders
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention belongs to the technical field of coal chemical industries and particularly relates to a dry powder composite type coal caking agent and a preparation method thereof. The dry powder composite type coal caking agent comprises, by weight, 47-52% of corn starch, 28-33% of carboxymethyl starch, 4-6% of cellulose, 2-5% of polyvinyl alcohol, 9-11% of bentonite and 1-3% of CaO. The preparation method includes the following steps of material weighing, wherein the raw materials of the weight percentage are weighed; material mixing, wherein the raw materials are placed in a stirrer to be stirred uniformly. According to the dry powder composite type coal caking agent and the preparation method thereof, the caking agent has the multiple functions of bonding, sulfur fixation and waterproofness, and briquette coal produced through the caking agent has the advantages of being high in mechanical strength, good in heat intensity, not prone to moisture absorption, good in sulphur fixation effect and the like.
Description
Technical field
The invention belongs to technical field of coal chemical industry, in particular to a kind of dry powder composite coal binder and preparation method thereof.
Background technology
Coal the ratio of lump coal declines, and causes price constantly to rise, cannot meet demand.Outside carbon removal soon, the low-calorie fuel such as the most substantial amounts of coal dust, coal slime, flyash, bone coal, gangue awaits development utilization so that it is become useful fuel, widen can source range, reduce production cost, increase economic benefit and social benefit.Moulded coal is to utilize binding agent by above-mentioned low-calorie fuel according to proportioning, mechanical strength and shape size etc. required in particular use, machined make the coal finished product with some strength, size and shape, making full use of of low calorie fuels can be realized, contribute for energy-saving and emission-reduction.
Briquette binder be fine coal cold pressing, one of key technology in mesolow moulding process, be related to processing cost and the briquet quality of moulded coal.Selection to briquette binder, mainly has some requirement following: strong to fine coal cementation, makes moulded coal have certain mechanical strength, heat stability and cold strength；Binding agent addition is few and does not produce secondary pollution；Wide material sources, cheap.
Summary of the invention
The present invention solves that technical problem present in known technology provides a kind of dry powder composite coal binder and preparation method thereof, this kind of binding agent has bonding, solid sulfur, waterproof multi-functional, and the moulded coal using this kind of binding agent to produce has the advantages such as mechanical strength is high, calorific intensity is good, be difficult to the moisture absorption, captured sulfur result is good.
The present invention solves that technical problem is adopted the technical scheme that present in known technology: a kind of dry powder composite coal binder, raw material including following percentage by weight: corn starch 47～52%, carboxymethyl starch 28～33%, cellulose 4～6%, polyvinyl alcohol 2～5%, bentonite 9～11%, CaO1～3%.
The acting as of key component in the preparation method of the dry powder composite coal binder that the present invention provides:
Corn starch: natural polymer, main component is flammable, does not increase moulded coal ash and sulphur content, and bonding force is strong, nontoxic after burning, harmless, does not produce secondary pollution.
Carboxymethyl starch: belong to the one of modified starch, its viscosity is high, stable performance, meets cold water and dissolves rapidly, and thickening and dispersibility are strong.
Polyvinyl alcohol: a kind of synthesis macromolecular organic compound, has the strongest caking property, is greatly shortened binding agent drying time.
Bentonite: mineral-type, cheap, have certain caking ability, its contained alkali metal, carbonate, hydroxide etc. become the reaction of Salmon-Saxl in instinct and coal, play the effect of solid sulfur, reduce sulfur dioxide (SO2) emissions, improve heat stability.
Preferably: include the raw material of following percentage by weight: corn starch 50%, carboxymethyl starch 30%, cellulose 5%, polyvinyl alcohol 3%, bentonite 10%, CaO2%.
The present invention solves that technical problem is adopted the technical scheme that present in known technology: the preparation method of a kind of dry powder composite coal binder: comprise the following steps,
(1) the weighing stage: weigh the raw material of above-mentioned percentage by weight；
(2) mixing step: above-mentioned raw materials is put into agitator and stirs.
Advantages of the present invention and good effect be: by natural polymer organic compound corn starch, carboxymethyl starch and synthetic macromolecular compound polyvinyl alcohol, inorganic matter bentonite, the raw materials such as sodium humate are mixed with binding agent by a certain percentage, simple to operate, condition is easily-controllable, it is convenient to implement, production time is short, with low cost, the main component of binding agent is Hydrocarbon, consumption is little, add during pulverized coal forming and i.e. can reach forming requirements less than the binding agent of 1% (by weight), moulded coal cost is relatively low, it is high that the moulded coal prepared has mechanical strength, calorific intensity is good, it is difficult to the moisture absorption, the advantage that captured sulfur result waits well.
Detailed description of the invention
For the summary of the invention of the present invention, feature and effect can be further appreciated that, hereby enumerate following example and describe in detail as follows: embodiment 1:
A kind of dry powder composite coal binder, including the raw material of following percentage by weight: corn starch 50%, carboxymethyl starch 30%, cellulose 5%, polyvinyl alcohol 3%, bentonite 10%, CaO2%.
The preparation method of above-mentioned dry powder composite coal binder, comprises the following steps,
(1) the weighing stage: weigh the raw material of above-mentioned percentage by weight；
(2) mixing step: above-mentioned raw materials is put into agitator and stirs.
The acting as of key component in the preparation method of the dry powder composite coal binder that the present invention provides, corn starch: natural polymer, main component is flammable, do not increase moulded coal ash and sulphur content, bonding force is strong, nontoxic after burning, harmless, does not produce secondary pollution；Carboxymethyl starch: belong to the one of modified starch, its viscosity is high, stable performance, meets cold water and dissolves rapidly, and thickening and dispersibility are strong；Cellulose: netted, intermolecular link；Polyvinyl alcohol: a kind of synthesis macromolecular organic compound, has the strongest caking property, is greatly shortened binding agent drying time；Bentonite: mineral-type, cheap, have certain caking ability, its contained alkali metal, carbonate, hydroxide etc. become the reaction of Salmon-Saxl in instinct and coal, play the effect of solid sulfur, reduce sulfur dioxide (SO2) emissions, improve heat stability；CaO: Gu sulfur.
Embodiment 2:
A kind of dry powder composite coal binder, including the raw material of following percentage by weight: corn starch 47%, carboxymethyl starch 33%, cellulose 4%, polyvinyl alcohol 4%, bentonite 9%, CaO3%.
The preparation method of above-mentioned dry powder composite coal binder, comprises the following steps,
(1) the weighing stage: weigh the raw material of above-mentioned percentage by weight；
(2) mixing step: above-mentioned raw materials is put into agitator and stirs.
Embodiment 3:
A kind of dry powder composite coal binder, including the raw material of following percentage by weight: corn starch 52%, carboxymethyl starch 28%, cellulose 6%, polyvinyl alcohol 2%, bentonite 11%, CaO1%.
The preparation method of above-mentioned dry powder composite coal binder, comprises the following steps,
(1) the weighing stage: weigh the raw material of above-mentioned percentage by weight；
(2) mixing step: above-mentioned raw materials is put into agitator and stirs.
Embodiment 4:
A kind of dry powder composite coal binder, including the raw material of following percentage by weight: corn starch 47%, carboxymethyl starch 33%, cellulose 5%, polyvinyl alcohol 5%, bentonite 9%, CaO1%.
The preparation method of above-mentioned dry powder composite coal binder, comprises the following steps,
(1) the weighing stage: weigh the raw material of above-mentioned percentage by weight；
(2) mixing step: above-mentioned raw materials is put into agitator and stirs.
Preferred embodiment is embodiment 1.
The briquette binder prepared according to the production method of the present invention has bonding, solid sulfur, waterproof multi-functional, and it presents powdered, nontoxic, harmless, non-secondary pollution, transports convenient storage.Consumption i.e. can reach forming requirements less than 1% (by weight), and use cost is low, and the cold strength of product is all good.
Claims (3)
1. a dry powder composite coal binder, it is characterised in that: include the raw material of following percentage by weight: corn starch 47～52%, carboxymethyl starch 28～33%, cellulose 4～6%, polyvinyl alcohol 2～5%, bentonite 9～11%, CaO1～3%.
2. dry powder composite coal binder as claimed in claim 1, it is characterised in that: include the raw material of following percentage by weight: corn starch 50%, carboxymethyl starch 30%, cellulose 5%, polyvinyl alcohol 3%, bentonite 10%, CaO2%.
3. the preparation method of a dry powder composite coal binder as claimed in claim 1 or 2, it is characterised in that: comprise the following steps,
(1) the weighing stage: weigh the raw material of above-mentioned percentage by weight；
(2) mixing step: above-mentioned raw materials is put into agitator and stirs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610192213.8A CN105820855A (en) | 2016-03-30 | 2016-03-30 | Dry powder composite type coal caking agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610192213.8A CN105820855A (en) | 2016-03-30 | 2016-03-30 | Dry powder composite type coal caking agent and preparation method thereof |
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| CN105820855A true CN105820855A (en) | 2016-08-03 |
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| CN201610192213.8A Pending CN105820855A (en) | 2016-03-30 | 2016-03-30 | Dry powder composite type coal caking agent and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106497623A (en) * | 2016-10-20 | 2017-03-15 | 常州市鼎升环保科技有限公司 | A kind of preparation method of environment-friendly type composite briquette binding agent |
| CN109054917A (en) * | 2018-09-06 | 2018-12-21 | 宁波敬业控股集团有限公司 | Biomass type caking agent of coal and preparation method thereof |
| CN113214880A (en) * | 2021-05-28 | 2021-08-06 | 陕西榆能集团能源化工研究院有限公司 | Coal ash-based high-sulfur-fixation coal binder and preparation method and application thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02270922A (en) * | 1989-04-12 | 1990-11-06 | Nippon Jiryoku Senko Kk | Method for making briquette of carbon powder |
| CN1908136A (en) * | 2005-08-04 | 2007-02-07 | 朱传海 | Fourth generation environmental protection energy-saving multiplied honeycomb briquette |
| CN101362976A (en) * | 2008-09-12 | 2009-02-11 | 周泽宇 | Coal producers from consumer waste regeneration |
| CN101812343A (en) * | 2010-04-28 | 2010-08-25 | 陕西科技大学 | Briquette binder and briquette preparation method based on binder |
| CN103436315A (en) * | 2013-09-02 | 2013-12-11 | 三门峡中兴煤炭综合利用研究开发中心 | Preparation method of forming binder for preparing aromatic carbon |
| CN103710065A (en) * | 2012-09-29 | 2014-04-09 | 郑州大学 | Novel waterproof compound coal binder |
| KR20140129564A (en) * | 2013-04-30 | 2014-11-07 | 한국에너지기술연구원 | Method for producing coal briquette using hydrogel binder |
| CN104927958A (en) * | 2015-05-22 | 2015-09-23 | 李晓东 | Dry powder briquette adhesive, briquette including adhesive and preparation method of briquette |
-
2016
- 2016-03-30 CN CN201610192213.8A patent/CN105820855A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02270922A (en) * | 1989-04-12 | 1990-11-06 | Nippon Jiryoku Senko Kk | Method for making briquette of carbon powder |
| CN1908136A (en) * | 2005-08-04 | 2007-02-07 | 朱传海 | Fourth generation environmental protection energy-saving multiplied honeycomb briquette |
| CN101362976A (en) * | 2008-09-12 | 2009-02-11 | 周泽宇 | Coal producers from consumer waste regeneration |
| CN101812343A (en) * | 2010-04-28 | 2010-08-25 | 陕西科技大学 | Briquette binder and briquette preparation method based on binder |
| CN103710065A (en) * | 2012-09-29 | 2014-04-09 | 郑州大学 | Novel waterproof compound coal binder |
| KR20140129564A (en) * | 2013-04-30 | 2014-11-07 | 한국에너지기술연구원 | Method for producing coal briquette using hydrogel binder |
| CN103436315A (en) * | 2013-09-02 | 2013-12-11 | 三门峡中兴煤炭综合利用研究开发中心 | Preparation method of forming binder for preparing aromatic carbon |
| CN104927958A (en) * | 2015-05-22 | 2015-09-23 | 李晓东 | Dry powder briquette adhesive, briquette including adhesive and preparation method of briquette |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106497623A (en) * | 2016-10-20 | 2017-03-15 | 常州市鼎升环保科技有限公司 | A kind of preparation method of environment-friendly type composite briquette binding agent |
| CN109054917A (en) * | 2018-09-06 | 2018-12-21 | 宁波敬业控股集团有限公司 | Biomass type caking agent of coal and preparation method thereof |
| CN113214880A (en) * | 2021-05-28 | 2021-08-06 | 陕西榆能集团能源化工研究院有限公司 | Coal ash-based high-sulfur-fixation coal binder and preparation method and application thereof |
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