CN1280157A - Composite adhesive and its producing method and use - Google Patents
Composite adhesive and its producing method and use Download PDFInfo
- Publication number
- CN1280157A CN1280157A CN 99109664 CN99109664A CN1280157A CN 1280157 A CN1280157 A CN 1280157A CN 99109664 CN99109664 CN 99109664 CN 99109664 A CN99109664 A CN 99109664A CN 1280157 A CN1280157 A CN 1280157A
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- CN
- China
- Prior art keywords
- composite adhesive
- organic component
- flyash
- inorganic composition
- dust
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- Solid Fuels And Fuel-Associated Substances (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Composite adhesive includes inorganic component, organic component and water. The inorganic component includes powered coal ash (in47-53 wt%) through twice burning, lime (in 53-47 wt%) and plaster (in 2 wt% of totalweight of coalash), and the organic component includes 36% formaldehyde (5kg), urea (4-5kg), cellulose (1-2kg) and water (100kg). When the composite adhesive is used in producing coal briquette, the coal briquette has high hot strength and will not become loose.
Description
A kind of composite adhesive and preparation method thereof and purposes have been the present invention relates to.
On industrial coal, a large amount of lump coal that use, but the lump coal limited amount, and coal amount is big, must be used again, on the processing moulded coal, generally adopt tackiness agent at present, but it is not enough that ubiquity high temperature hot strength, influences burning, the use of moulded coal, the moulded coal performance that for example needs on the Ammonia Production, still can not meet the demands, therefore be necessary to provide a kind of novel composite adhesive and be applied to moulded coal.
The object of the invention provides composite adhesive and manufacture method and purposes, and the prescription uniqueness of this tackiness agent is utilized waste material, wide material sources, and easy to process, cost is low, its cold strength of the moulded coal that tackiness agent is processed, hot strength height.
For achieving the above object, the present invention takes following design: this composite adhesive, it comprises inorganic composition and organic component, described inorganic composition comprises: through the flyash of secondary combustion, and the lime and the plaster of Paris, the first two weight percentage of planting composition is respectively 47-53%, 53-47%, the plaster of Paris is 2% of above-mentioned two kinds of total amounts, the flyash of described secondary combustion be flyash 800 ℃ of smouldering fire spontaneous combustions, other oxygen supply; Described organic component is the formaldehyde solution 5kg of 36% concentration, urea 4-5kg, Mierocrystalline cellulose 1-2kg, water 100kg.
The method of making composite adhesive has following step:
(1) batching is delivered to roto-sifter, the mixing of sieving;
(2) powder is delivered to dust tank;
(3) in dust tank, add pressurized air and make powder be the boiling shape,, collect the inorganic composition that dust is tackiness agent with abundant stirring;
(4) deliver to the finished product jar through helical screw feeder;
(5) organic component preparation, dilution.
The moulded coal of described composite adhesive processing comprises: coal dust, inorganic composition, organic component, their consumption are 1000kg:60-70kg:70-80kg (dilution back).
Used flyash in this tackiness agent through secondary combustion, its objective is by after the secondary combustion, adjusted the composition of former flyash, in the inorganic composition of forming composite adhesive, added lime (heavy 〉=60% weight percent that Cao contains) again, make tricalcium aluminate, tetracalcium aluminoferrite content height, because tricalcium silicate is to solve early strength and cold strength, and tricalcium aluminate, tetracalcium aluminoferrite are the major ingredient that solves hot strength, so-called hot strength is meant thermally-stabilised under the high temperature, moulded coal is not broken during burning does not split, and does not lump.
Also contain organic composition in this composite adhesive, purpose is to increase bond degree, because it is a kind of gelling material that formaldehyde, urea, Mierocrystalline cellulose mix the back, when they with promptly become slurry after inorganic composition mixes, need not heat, can obtain a kind of suspensoid, can obtain the ideal moulded coal, for briquette production provides good condition.
Advantage of the present invention:
(1) composite adhesive is easy to use, need not dry in the moulded coal in processing, can reach standard indoor sclerosis 2-3 days of blowing air not, and technology is simple, less investment.
(2) starting material wide material sources can obtain flyash utilizing, and turn waste into wealth.
(3) cost is low.
The invention will be further described below in conjunction with embodiment:
Embodiment 1
Adopt the flyash of Shanxi anxiety horse power plant, this flyash is taken from, two group in the flyash, with it in tunnel (smouldering fire spontaneous combustion in 2M * 5M * 6M), other oxygen supply, about 800 ℃ of its temperature, after about two days, burning is fully, flyash after the taking-up secondary combustion, and analyze composition: SiO
2: 24.10%; Al
2O
3: 14.05%; Fe
2O
3: 11.46%, CaO:18.28%; K
2O:10.25%; MgO:13.45%; Na
2O:10.99%; CuO:0.34%; TiO
2: 0.3%, also have other oxide compound (weight percent) on a small quantity.Get 50 parts in above-mentioned flyash, 50 parts in lime (take from the Quwo County poplar and talk Lime Factory, its calcium oxide content is 60%) adds 2 parts the plaster of Paris (presetting period can not be later than 4 hours early than the time of coagulating in 5 minutes) (Quwo County, Shanxi poplar is talked gypsum factory product) in addition.
Other geographic flyash are after secondary combustion, and the content of major ingredient is CaO15-20% in its product, SiO
220-25%; Fe
2O
35-10%; Al
2O
310-15% (weight percent).The compound method of above-mentioned inorganic composition is: batching; Powder is delivered to roto-sifter sieve, carry powder to dust tank, send into pressurized air (6kg/cm from the jar bottom
2), make powder form boiling state, so that raw material mixes, gas is discharged, and the dust that dust bag is collected is the inorganic composition of composite adhesive, and this tackiness agent is delivered to the finished product jar by helical screw feeder.
The raw material and the proportioning of organic component are: the formaldehyde 5kg of 36% concentration, add urea 5kg, and Mierocrystalline cellulose 1.5kg adds water 100kg.
The method of processing moulded coal is in the 60 kg inorganic compositions, add dilution back organic component 70 kg (adding the organic component after 1000kg water dilutes in former organic composition again), its consumption look in the coal water-content what and regulate, general control water content about 13%, after fully stirring, pump in the 1000kg fine coal, obtain needed moulded coal, this binder performance is better as can be seen from following several moulded coals, for example:
The moulded coal that the coal dust in Shijiazhuang is made:
Fugitive constituent 10-13
Sulphur 0.5%
The heavy 50g of ball
Ash content is below 20%
Fixed carbon 65-70
Ultimate compression strength 65-70kg/cm
2The moulded coal that the coal dust in Shanghai is made
Fugitive constituent 9.24%
Fixed carbon 60
Intensity 68.1kg/cm
2
Claims (3)
1, a kind of composite adhesive, it is characterized in that: it comprises inorganic composition and organic component, described inorganic composition comprises: through the flyash of secondary combustion, the lime and the plaster of Paris, the first two weight percentage of planting composition is respectively 47-53%, and 53-47%, the plaster of Paris are 2% of above-mentioned two kinds of total amounts, the flyash of described secondary combustion be flyash 800 ℃ of smouldering fire spontaneous combustions, other oxygen supply; Described organic component is the formaldehyde solution 5kg of 36% concentration, urea 4-5kg, Mierocrystalline cellulose 1-2kg, water 100kg.
2, a kind of method of making the described composite adhesive of claim 1, it is characterized in that: it comprises following step:
(1) batching is delivered to roto-sifter, the mixing of sieving:
(2) powder is delivered to dust tank;
(3) in dust tank, add pressurized air and make powder be the boiling shape,, collect the inorganic composition that dust is tackiness agent with abundant stirring;
(4) send device to the finished product jar through screw feeding;
(5) organic component preparation, dilution.
3, a kind of moulded coal that utilizes the described composite adhesive processing of claim 1, it is characterized in that: it comprises: coal dust, inorganic composition, organic component, their consumption are 1000kg:60-70kg:70-80kg (dilution back).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99109664 CN1280157A (en) | 1999-07-07 | 1999-07-07 | Composite adhesive and its producing method and use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99109664 CN1280157A (en) | 1999-07-07 | 1999-07-07 | Composite adhesive and its producing method and use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1280157A true CN1280157A (en) | 2001-01-17 |
Family
ID=5274063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99109664 Pending CN1280157A (en) | 1999-07-07 | 1999-07-07 | Composite adhesive and its producing method and use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1280157A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103387859A (en) * | 2013-07-02 | 2013-11-13 | 海安县中丽化工材料有限公司 | Preparation method of special adhesive for novel coal briquettes |
| CN110100019A (en) * | 2016-12-28 | 2019-08-06 | 乐天精密化学株式会社 | The manufacturing method of coal briquette bond composition, the moulded coal comprising the composition and moulded coal |
-
1999
- 1999-07-07 CN CN 99109664 patent/CN1280157A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103387859A (en) * | 2013-07-02 | 2013-11-13 | 海安县中丽化工材料有限公司 | Preparation method of special adhesive for novel coal briquettes |
| CN110100019A (en) * | 2016-12-28 | 2019-08-06 | 乐天精密化学株式会社 | The manufacturing method of coal briquette bond composition, the moulded coal comprising the composition and moulded coal |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |