CN1074701A - High-effect moulding coal and manufacture method thereof - Google Patents
High-effect moulding coal and manufacture method thereof Download PDFInfo
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- CN1074701A CN1074701A CN 92113126 CN92113126A CN1074701A CN 1074701 A CN1074701 A CN 1074701A CN 92113126 CN92113126 CN 92113126 CN 92113126 A CN92113126 A CN 92113126A CN 1074701 A CN1074701 A CN 1074701A
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Abstract
High-effect moulding coal and manufacture method thereof.The present invention is a major ingredient with coal, tackiness agent, and wherein tackiness agent is silicic acid, water glass, a kind of in potassium silicate, the sodium-potassium silicate.The present invention compares with existing yellow peat, have advantages such as coal burning is abundant, calorific value of coal is high, combustion time is long, the recrement amount is few, its moderate cost, meet the present level of consumption of China, extensively be suitable for occasions such as family, hotel, tourist spot, as daily fuel cooking, heating, picnic, beat multiple function such as limit stove.
Description
The present invention relates to a kind of moulded coal and manufacture method thereof, belong to solid-fuelled improvement.
At present, domestic commercially available honeycomb briquette is binding agent mostly with the yellow mud, and add-on uses this coal to have following shortcoming generally more than 30%:
1, yellow mud itself will consume partial heat energy during coal combustion, the waste energy, and thermo-efficiency is low;
2, the coal proportion is lower, and combustion time is short, and thermal value is low;
3, coal burning-point height is difficult for lighting, and the user uses inconvenience;
4, coal quarrel amount is many coal afterburnt, becomes one of municipal wastes main source, causes very big pressure for refuse collection, transportation, the processing in city.
The external existing multiple moulded coal made from cleaned coal, this coal adds plant adhesive with fine coal powder, charcoal and is made, its burning-point is low, easily light, combustion time is longer, but complex manufacturing technology, cost an arm and a leg, do not meet the present level of consumption of China, only, can not extensively enter the daily use of family as outdoor barbecue.
The object of the present invention is to provide high-effect moulding coal of growing a kind of thermal value height, combustion time and preparation method thereof.
The present invention is that major ingredient is formed by coal, tackiness agent, and wherein tackiness agent is a kind of in silicic acid, water glass, potassium silicate, the sodium-potassium silicate, and its proportion is 0.8%～6% of a gross weight (dry state), and all the other are coal.The present invention is because employing silicic acid kind solvent is a tackiness agent, its adhesion characteristic makes and has many small air gaps in the coal body, this air gap helps replenish air and goes into coal body, make coal burning abundant, do not loose when this caking agent makes coal combustion in addition, after-flame turns to lime and just falls naturally, and coal can all burnout, improve burning of coal efficient greatly, thereby realize purpose of the present invention.
Above-mentioned coal comprises bituminous coal and hard coal, if family uses, generally selecting thermal value for use is the above high-quality anthracites of 6000 kilocalories, if industry is used, then two kinds of coals are all selected for use, and its index is the same.The present invention looks purposes can make various forms of moulded coals such as lump coal, ball coal, honeycomb briquette, and in addition, above-mentioned coal particle size is generally 15～100 orders.
Above-mentioned tackiness agent add-on with less be good, but the coal dust that (is lower than lower limit) very little is bonding not enough, can scatter by nature during burning; As too much then tackiness agent can become fire retardant, influence burning; The own quality of the add-on of caking agent and coal also has certain relation, if coal quality height, the bonding composition of its combustion in inherent day is higher, the caking agent of corresponding adding can be less, otherwise then need add, as quality is that the minimum value of tackiness agent that the coal of 7400 kilocalories adds can be 0.8%, and the coal of 6000 kilocalories need add about 1% tackiness agent at least.In addition, taking all factors into consideration the bond properties and the raw materials cost of above-mentioned listed each tackiness agent, is preferable to select silicic acid, water glass for use.
Manufacture method of the present invention is as follows: with coal, tackiness agent is major ingredient, at first the tackiness agent with 35～75 degree adds the clear water dilution, then diluent is injected coal charge to be pulverized, this coal charge is pulverized (being stirred simultaneously), with the coal charge compression moulding of hygrometric state, just become readymade coal after drying at last.
Several hours before coal charge puts into production can add an amount of sulfuric acid in coal charge, sulfuric acid is strong oxidizer, and it can be removed the peculiar smell that is produced when burning and dissolve lumped coal after infiltrating through coal cinder, helps the pulverizing of coal cinder.The sulfuric acid add-on is generally 1%～10%(weight ratio), if coal sulphur content height, coal cinder more firmly, bigger, then add-on needs greatlyyer, does not add otherwise then add even less.
Above-mentioned tackiness agent dilution amount of water is done wet degree on coal charge and decide, generally is 3～8 times (solution weights), if coal charge is dried then need add water, otherwise then adds water less.
The above-mentioned coal charge that is injected with tackiness agent is crushed to 15～100 orders.
The present invention compared with prior art has following advantage:
1, coal combustion is abundant, and the calorific value of coal height helps making full use of, save energy, reduces energy wastage.After tested, coal burn-off rate of the present invention is more than 99%, and its thermal value on average improves more than 12% than the nominal thermal value of the coal that adopts;
2, coal proportion height in the moulded coal, combustion time is long, thermal value is big, a coal is equivalent to three to four of existing yellow peats, the quantity of required coal significantly reduced the user under the situation of the same amount of cooking in every month, therefore can significantly reduce the traffic capacity of coal, save manpower, storage space also greatly reduces;
3, production technique is simple, cost is lower, and the user purchased coal consumption in one month and can reduce more than 20% than yellow peat, met the present level of consumption of China, was convenient to promote the use of;
4, surplus quarrel amount is few behind the coal combustion, only is equivalent to about 20% of yellow peat, significantly reduces the municipal wastes amount, helps family and urban health;
5, the coal burning-point is low than yellow peat, more easily lights, and is easy to use;
6, because adhesive properties coal intensity height is shock-resistant, good waterproof performance is convenient to transportation and storage.
In sum, the present invention has advantages such as sufficient combustion, thermal value height, combustion time are long, surplus quarrel amount is few, extensively is suitable for occasions such as family, hotel, wineshop, tourist spot, as daily fuel cooking, heating, picnic, beat multiple function such as limit stove.
Embodiment: each embodiment and with the yellow peat comparable data as the table in listed.
Through experiment test as can be known: the tackiness agent proportion is 1%～3% for the preferred range value, and wherein 1.2% be optimum value, and overall target is ideal comparatively.
Claims (9)
1, a kind of high-effect moulding coal is characterized in that by coal, tackiness agent being that major ingredient is formed, and wherein tackiness agent is a kind of in water glass, silicic acid, potassium silicate, the sodium-potassium silicate, and proportion is 0.8%～6% of a gross weight (dry state), and surplus is a coal.
2, moulded coal according to claim 1 is characterized in that above-mentioned coal is bituminous coal or hard coal.
3, moulded coal according to claim 1 is characterized in that making lump coal or honeycomb briquette.
4, according to claim 1 or 2 or 3 described moulded coals, it is characterized in that it is the above high-quality anthracites of 6000 kilocalories that above-mentioned coal adopts thermal value, granularity is 15～100 orders.
5, moulded coal according to claim 1 is characterized in that above-mentioned tackiness agent proportion is 1%～3% of a gross weight (dry state).
6, produce the method for above-mentioned high-effect moulding coal, it is characterized in that with coal, tackiness agent be major ingredient, at first the tackiness agent with 35～70 degree adds the clear water dilution, then diluent is injected coal charge to be pulverized, this coal charge is pulverized, at last with the coal charge compression moulding of hygrometric state.
7, method according to claim 6 is characterized in that the above-mentioned coal charge that is injected with tackiness agent is ground into 15～100 orders.
8, method according to claim 6 is characterized in that adding in the above-mentioned tackiness agent dilution 3～8 times clear water
9, according to claim 6 or 7 or 8 described methods, it is characterized in that above-mentioned coal charge is putting into production, adding has 1%～10% sulfuric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92113126 CN1074701A (en) | 1992-11-15 | 1992-11-15 | High-effect moulding coal and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92113126 CN1074701A (en) | 1992-11-15 | 1992-11-15 | High-effect moulding coal and manufacture method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1074701A true CN1074701A (en) | 1993-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92113126 Pending CN1074701A (en) | 1992-11-15 | 1992-11-15 | High-effect moulding coal and manufacture method thereof |
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| CN (1) | CN1074701A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069917C (en) * | 1997-10-21 | 2001-08-22 | 许绍良 | Inorganic binder for shaped coke or coal |
| CN102618343A (en) * | 2012-04-10 | 2012-08-01 | 雷军 | Instant water coal briquette and molding method thereof |
-
1992
- 1992-11-15 CN CN 92113126 patent/CN1074701A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069917C (en) * | 1997-10-21 | 2001-08-22 | 许绍良 | Inorganic binder for shaped coke or coal |
| CN102618343A (en) * | 2012-04-10 | 2012-08-01 | 雷军 | Instant water coal briquette and molding method thereof |
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