CN104774667A - Moulded coal binder and preparation method thereof - Google Patents
Moulded coal binder and preparation method thereof Download PDFInfo
- Publication number
- CN104774667A CN104774667A CN201510132051.4A CN201510132051A CN104774667A CN 104774667 A CN104774667 A CN 104774667A CN 201510132051 A CN201510132051 A CN 201510132051A CN 104774667 A CN104774667 A CN 104774667A
- Authority
- CN
- China
- Prior art keywords
- coal
- briquette binder
- briquette
- binder
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention discloses an industrial moulded coal binder and a preparation method thereof. The coal binder adopts sodium humate, bentonite, clay, aluminosilicate, limestone, iron oxide, polyester and the like as the raw materials, and is prepared by certain proportion and preparation process. The moulded coal binder prepared by the method provided by the invention has the characteristics of strong bonding capacity, obvious sulfur fixation and environmental protection effects, and low cost, and the formed moulded coal has the advantages of high cold-hot physical strength, good thermal stability and the like.
Description
Technical field
The present invention relates to a kind of briquette binder and preparation method thereof, the present invention is applicable to fire coal or Coal Gasification Technology field.
Background technology
Rich coal resources in China, coal accounts for 60-70% in the primary energy source structure of consumer demand, and following longer for some time coal can not change as the structure of main energy sources, and the coal production of China in 2103 reaches 36.8 hundred million tons.Meanwhile, coal and the same Nonrenewable energy resources that belong to of fossil resource such as oil, the environmental issue caused due to burning of coal, gasification, generating etc. at present becomes increasingly conspicuous, and therefore improves the important directions that the utilization ratio of coal and clean conversion are coal utilizations.
Moulded coal is the lump coal that fine coal passes through to be mechanically pressed into, and moulded coal effectively can improve the utilization ratio of fine coal.Moulded coal described in this patent refers to industrial shaping coal.Form the process of moulded coal generally to need to add caking agent of coal, it is the key of briquette production process, caking agent of coal to intensity, the thermostability of moulded coal, comprise the indexs such as combustionproperty and have important effect, different atures of coal also needs to use different caking agent of coals.The viscosifying power of general requirement caking agent of coal is strong, pollution-free, do not affect the thermal discharge, incendivity etc. of coal simultaneously.From cost angle, the moulded coal that binding agent adds rear formation also needs lower than the normal lump coal price of purchase, so just has the market competitiveness.According to component, caking agent of coal can be divided into inorganic, organic and compound binding agent three types, and wherein compound binding agent is current main-stream developing direction.
CN 101712900A discloses a kind of adhesive for gasifying briquettes, this binder component directly adopts silicon-dioxide, water infiltration is added after the mixing of the raw material such as aluminum oxide and Mierocrystalline cellulose, add caustic soda again and react 1.5-2 hour at 70-90 DEG C in stirring tank, binding agent finished product is become after drying dehydration and levigate operation, this patent is owing to selecting silicon-dioxide, aluminum oxide, instead of salt that can be directly water-soluble, make in preparation process, to need to add caustic soda and carry out reaction formation silicate, the binding agent preparation process of this patent is complicated, need indirect heating, reaction process is difficult to control, and then the performance of binding agent can be affected.
CN101812343A discloses a kind of briquette binder, in this binding agent, the mass percent of organic composition humic acid reaches 45-75%, although humic acid has good cohesiveness and water-soluble mobility, but a large amount of humic acid not only can increase the cost of moulded coal, and also may cause disadvantageous effect to the combustionproperty of moulded coal, content of humic acid can affect the water tolerance of moulded coal too much simultaneously.
CN103305302A discloses the professional caking agent of coal of a kind of bituminous coal conny, CN103305302A discloses a kind of special binding agent for volatile matter≤20% bituminous coal conny production of shaped coal, the advantage of these two patents develops binding agent specially for specific coal, shortcoming there is suitability problem to the cohesiveness of other coal, all need W-Gum as component in the binding agent of simultaneously these two patents, the source of W-Gum is grain, therefore the overall shortage of current world food is not the main acquisition methods of industrial raw material.
In the paper that moulded coal and binding agent are studied, to caking agent of coal with the mechanical bond of pulverized coal particle and physics chemical action, all put into practice from theoretical and test as surface tension, wetting property, hydrophobicity, sulfur capturing capacity, even Combustion of Mould Coal activity, ash fusion point etc. and all carried out some elaborations, certain requirement is proposed to caking agent of coal.
In sum, develop or develop a kind ofly effectively to reduce costs, raw material environmental protection is easy to get, preparation technology's advantages of simple and the briquette binder of excellent property very has realistic meaning.
The present invention is devoted to solve the technical problem existed in above-mentioned prior art, and provides briquette binder that can solve above-mentioned technical barrier and preparation method thereof.
Summary of the invention
The invention provides a kind of briquette binder and preparation method thereof, described briquette binder is formulated according to mass percent by following ingredients.
Sodium humate 1-15%, clay or wilkinite 30-50%, silico-aluminate: 20-55%, sodium carbonate 1-15%, calcium oxide 2-12%, ferric oxide 1-8%, magnesium oxide 0.5-5%, tensio-active agent 0-0.6%, polyester 1-6%.
The formula of above-mentioned caking agent of coal can mate according to the fugitive constituent of fine coal, fixed carbon content, ash fusion point, sulphur content etc., even suitably can be adjusted for different briquette molding technique.
Preferably, sodium humate 3-12%, clay or wilkinite 35-45%, silico-aluminate 25-45%, sodium carbonate 3-10%, calcium oxide 2-10%, ferric oxide 1-5%, magnesium oxide 1-3%, tensio-active agent 0.05-0.4%, polyester 2-4%.
Silico-aluminate in above-mentioned formula refers to silicon sol, water glass, aluminate, cement or their mixture.
In above-mentioned formula, tensio-active agent refers to that acrylic amide tensio-active agent, lipid acid sorb are smooth etc.
First above-mentioned caking agent of coal composition is worn into the particle of more than 60 orders, then add mixing in container according to certain sequencing, stir 5-40 minute, suitably can add a small amount of water dedusting if desired, also can suitably heat; Mix rear abundant grinding, require that granularity is less than 100 object particles lower than 5%, finally pack, namely become briquette binder product.
In briquette molding process, add the caking agent of coal product of the present invention of 2-6% in fine coal per ton, namely fine coal per ton adds 20-60 kilogram of caking agent of coal.After shaping, the cold strength of moulded coal is higher than Industry code requirements, and the coal briquette cold strength of formation is > 55 kilograms/, and hot strength 35-45 kilogram/, thermostability is greater than 70%.Do not produce cracked phenomenon in use procedure, after adopting Combustion of Mould Coal of the present invention, captured sulfur result is obvious.
Accompanying drawing explanation
Fig. 1 is briquette binder preparation technology schematic flow sheet
Embodiment
Embodiment
Further describe the present invention by detailed one exemplary embodiment below, but these embodiments do not form any limitation of the invention.
Embodiment 1
1) binding agent of the present invention by following raw material according to mass percent proportioning: sodium humate 10%, clay 38%, silico-aluminate 33%, sodium carbonate 6%, calcium oxide 6%, ferric oxide 3%, magnesium oxide 2%, polyester 2%;
2) by the Task-size Controlling of these raw materials at 60-100 order, respectively clay, silico-aluminate, sodium carbonate, calcium oxide, ferric oxide, sodium humate, polyester are joined in stirred pot according to sequencing, uniform stirring 35 minutes, finally add tensio-active agent, stir 10 minutes again, suitably can spray a small amount of clear water to have avoided dirt.
3) after being uniformly mixed, by batch mixing porphyrize, control to be less than 100 object granular mass percentage ratio < 3%, after having packed, be caking agent of coal product.
Embodiment 2
1) caking agent of coal of the present invention by following raw material according to mass percent proportioning: sodium humate 6%, wilkinite+clay 33%, silico-aluminate 39%, sodium carbonate 7%, calcium oxide 8%, ferric oxide 2.5%, magnesium oxide 2%, polyester 2.4%, tensio-active agent 0.1%;
2) by the Task-size Controlling of these raw materials at 60-100 order, respectively clay, silico-aluminate, sodium carbonate, calcium oxide, ferric oxide, sodium humate, polyester are joined in stirred pot according to sequencing, uniform stirring 30 minutes, finally add tensio-active agent, stir 10 minutes again, period suitably can be sprayed a small amount of clear water and avoided dirt.
3) after having stirred, by batch mixing porphyrize, control to be less than 110 object granular mass percentage ratio < 5%, after having packed, be caking agent of coal product.
The change of component that embodiment 1 and embodiment 2 comprise tensio-active agent etc. is to adapt to different coals, and cohesiveness, water-content, ash amount etc. according to different fine coal are mated.Caking agent of coal preparation technology flow process in above-mentioned two examples as shown in Figure 1.
Embodiment 3
1) coal dust is carried out sieving and breaking fall, make the coal dust being greater than 3mm account for the ratio < 5% of total mass, then add the caking agent of coal adopting this patent method to prepare, fully mix in agitator or kneader.Caking agent of coal/fine coal mass percent is 2-6%, can add the water being no more than siccative total amount 10% in mixing process according to condition.
2) mixture forming machine is pressed into cylindrical or spherical moulded coal, forming pressure is between 100MPa-300MPa, and the aftertreatments such as drying become briquette prod.
3) cold strength of final briquette prod is > 55 kilograms/, hot strength > 35 kilograms/, and thermostability is greater than 70%.Do not produce cracked phenomenon in use procedure, during Combustion of Mould Coal, ash fusibility ST point is greater than 1250oC, and sulfur-fixing rate is greater than 50%.
Although show and described several embodiment of the present invention, the present invention has not been restricted to described embodiment.On the contrary; those skilled in the art should recognize when not departing from principle of the present invention and spirit; can carry out any accommodation and improvement to these embodiments, protection scope of the present invention determined by appended claim and equivalent thereof.
Claims (8)
1. a briquette binder, is characterized in that: the weight percent of described briquette binder consists of: sodium humate 1-12%, clay or wilkinite 30-50%, silico-aluminate: 20-55%, sodium carbonate 1-15%, calcium oxide 2-12%, ferric oxide 1-8%, magnesium oxide 0.5-5%, tensio-active agent 0-0.6%, polyester 1-6%.
2. briquette binder according to claim 1, preferred described briquette binder formula is: sodium humate 6%, clay 33%, silico-aluminate 39%, sodium carbonate 7%, calcium oxide 8%, ferric oxide 2.5%, magnesium oxide 2%, polyester 2.4%, tensio-active agent 0.1%.
3. briquette binder according to claim 1 and 2, the component of described briquette binder adds uniform stirring in stirred pot according to a definite sequence, and then porphyrize makes to be greater than 100 object particle < 5%, porphyrize and batch mixing are described caking agent of coal product after having packed.
4. briquette binder according to claim 1, is characterized in that: can adapt to different coals.
5. briquette binder according to claim 1, it is characterized in that: use the moulded coal cold strength after described briquette binder higher than Industry code requirements, the coal briquette cold strength formed is > 55 kilograms/, hot strength > 35 kilograms/, thermostability is greater than 70%, do not produce cracked phenomenon in use procedure, when adopting the Combustion of Mould Coal of described briquette binder, ash fusibility ST point is greater than 1250oC, and sulfur-fixing rate is greater than 50%.
6. the preparation method of briquette binder as claimed in claim 1, it is characterized in that: the component of briquette binder adds uniform stirring in stirred pot according to a definite sequence, and then porphyrize makes to be greater than 100 object particle < 5%, porphyrize and batch mixing are described caking agent of coal product after having packed.
7. the preparation method of briquette binder according to claim 6, is characterized in that: described briquette binder can adapt to different coals.
8. the preparation method of briquette binder according to claim 6, it is characterized in that: use the moulded coal cold strength after described briquette binder higher than Industry code requirements, the coal briquette cold strength formed is > 55 kilograms/, hot strength > 35 kilograms/, thermostability is greater than 70%, do not produce cracked phenomenon in use procedure, when adopting the Combustion of Mould Coal of described briquette binder, ash fusibility ST point is greater than 1250oC, and sulfur-fixing rate is greater than 50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510132051.4A CN104774667A (en) | 2015-03-25 | 2015-03-25 | Moulded coal binder and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510132051.4A CN104774667A (en) | 2015-03-25 | 2015-03-25 | Moulded coal binder and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104774667A true CN104774667A (en) | 2015-07-15 |
Family
ID=53616445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510132051.4A Pending CN104774667A (en) | 2015-03-25 | 2015-03-25 | Moulded coal binder and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104774667A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105296045A (en) * | 2015-11-23 | 2016-02-03 | 广西金壮锦节能技术有限公司 | High viscosity briquette waterproof composite binder |
| CN106221841A (en) * | 2016-09-30 | 2016-12-14 | 西安科技大学 | The preparation of a kind of high-strength water-resistance coal briquette bond and using method thereof |
| WO2018137597A1 (en) * | 2017-01-24 | 2018-08-02 | 福州大学 | Methods for preparing coal briquette binder using refuse leachate and for producing industrial coal briquette using same |
| CN110747029A (en) * | 2019-10-08 | 2020-02-04 | 曾坤宁 | Composite briquette binder |
| CN111718772A (en) * | 2020-05-28 | 2020-09-29 | 河北金丰新材料科技有限公司 | Drying-free adhesive and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4615712A (en) * | 1985-08-09 | 1986-10-07 | The United States Of America As Represented By The United States Department Of Energy | Fuel agglomerates and method of agglomeration |
| CN1648220A (en) * | 2004-10-19 | 2005-08-03 | 金熙濬 | Environment protection clean type composite shaped coal and its preparing method |
| CN101168695A (en) * | 2007-10-26 | 2008-04-30 | 李会云 | Molded coal produced from slime and producing method thereof |
| CN101812343A (en) * | 2010-04-28 | 2010-08-25 | 陕西科技大学 | Briquette binder and briquette preparation method based on binder |
| CN102952601A (en) * | 2012-11-19 | 2013-03-06 | 山西潞安环保能源开发股份有限责任公司 | Binder for pressure gasification briquettes |
-
2015
- 2015-03-25 CN CN201510132051.4A patent/CN104774667A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4615712A (en) * | 1985-08-09 | 1986-10-07 | The United States Of America As Represented By The United States Department Of Energy | Fuel agglomerates and method of agglomeration |
| CN1648220A (en) * | 2004-10-19 | 2005-08-03 | 金熙濬 | Environment protection clean type composite shaped coal and its preparing method |
| CN101168695A (en) * | 2007-10-26 | 2008-04-30 | 李会云 | Molded coal produced from slime and producing method thereof |
| CN101812343A (en) * | 2010-04-28 | 2010-08-25 | 陕西科技大学 | Briquette binder and briquette preparation method based on binder |
| CN102952601A (en) * | 2012-11-19 | 2013-03-06 | 山西潞安环保能源开发股份有限责任公司 | Binder for pressure gasification briquettes |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105296045A (en) * | 2015-11-23 | 2016-02-03 | 广西金壮锦节能技术有限公司 | High viscosity briquette waterproof composite binder |
| CN106221841A (en) * | 2016-09-30 | 2016-12-14 | 西安科技大学 | The preparation of a kind of high-strength water-resistance coal briquette bond and using method thereof |
| WO2018137597A1 (en) * | 2017-01-24 | 2018-08-02 | 福州大学 | Methods for preparing coal briquette binder using refuse leachate and for producing industrial coal briquette using same |
| US10752855B2 (en) | 2017-01-24 | 2020-08-25 | Fuzhou University | Method for preparing briquette binder using landfill leachate and method for producing industrial briquette using briquette binder |
| CN110747029A (en) * | 2019-10-08 | 2020-02-04 | 曾坤宁 | Composite briquette binder |
| CN111718772A (en) * | 2020-05-28 | 2020-09-29 | 河北金丰新材料科技有限公司 | Drying-free adhesive and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104774667A (en) | Moulded coal binder and preparation method thereof | |
| CN101172605B (en) | Method for producing calcium carbide | |
| CN101629113A (en) | Metallurgical molded coal manufactured by raw materials containing humic acid | |
| CN102925675B (en) | Method for recovering sludge from smelting ironmaking | |
| CN101747967B (en) | Industrial briquette for molten iron production and gas generator and preparation method thereof | |
| CN106082725B (en) | No first-hand datum waste incineration bottom ash cementitious material and preparation method thereof | |
| CN104263911B (en) | The preparation method of sintering ore of vanadium-titanium magnetite ore | |
| CN103146408B (en) | Mill coal composite pulverized coal modifier, modified coal prepared by using mill coal composite pulverized coal modifier, and preparation method of modified coal | |
| CN104877727A (en) | Composite biomass briquette adhesive, and preparation method and application thereof | |
| CN105329897A (en) | Preparation method of compound reducing agent applied to industrial silicon smelting production | |
| CN103881782A (en) | Fluidized-bed gasifier fly ash granules and production method thereof | |
| CN101070498A (en) | Method for preparing shaped-coal using coal or charcoal as raw material and adding additives | |
| CN104193372B (en) | A kind of high-strength Alkali resistant castable refractory and preparation method thereof | |
| CN102776047A (en) | Binder and method for molding calcium-base industrial powder based on binder | |
| CN106010707A (en) | Forming method of semicoke powder and quicklime powder | |
| CN105755280A (en) | Composite binder for iron ore pellet as well as preparation method and application method thereof | |
| CN107010627A (en) | A kind of method that calcium carbide furnace gas dedusting ash, semi-coke end and pulverized limestone recycle production pelletizing carbide raw material | |
| CN101747091A (en) | Method for preparing calcium magnesium phosphate fertilizer by using phosphorite floatation tailing as raw material | |
| CN103965929B (en) | A kind of method that raising high volatile does not stick bituminous coal consumption in process of coking | |
| CN101768664B (en) | Binder for metal powder ore cold consolidation so as to substitute for sinter ore and application method thereof | |
| CN104446548A (en) | Low-cost aluminum furnace lining hot repairing mix and preparation method thereof | |
| CN102372486A (en) | Low-cost magnesium tundish paint and its preparation method | |
| CN103468942B (en) | Composite adhesive for hot-pressed iron coke and preparation method thereof | |
| CN106635219A (en) | Method for preparing briquette binder from solid wastes and prepared briquette binder | |
| CN107418644B (en) | A kind of application of briquette binder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150715 |
|
| WD01 | Invention patent application deemed withdrawn after publication |