Clean modified briquette and method for preparing same
A modified and clean technology, which is applied in the field of clean modified briquettes and its preparation, can solve the problems of increasing the amount of solid waste, consuming laterite resources, and insufficient emission of sulfur dioxide, so as to facilitate ignition and complete combustion, and rationally prepare Process, the effect of low blowdown rate
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Embodiment 1
[0027] 1) Sieve and pulverize the coal powder to obtain superfine coal powder for later use, the fineness of which is ≤20 μm;
[0028] 2) Sieve and crush the oil shale to 100-200 mesh for later use;
[0029] 3) 2) pulverized matter 30% and 1) superfine coal powder 20%, Huang's purified powder 5%, complexing agent aluminum oxide (Al 2 o 3 ) 1% mixed;
[0030] 4) Add (binder) 2% calcium oxide, 6% humic acid, 15% water, and 23% anthracite to the above mixture and knead;
[0031] 5) After kneading, stack the modification reaction, cover for 24 hours, and shape it with a pressure molding machine at a pressure of 5 to 7 mPa;
[0032] 6) After molding, dry to make the water content less than 10%, then pack and store.
Embodiment 2
[0034] 1) same as embodiment 1;
[0035] 2) select peat for subsequent use;
[0036] 3) 2) peat 50% and 1) superfine powder 15%, Huangshi purification powder 1%, complexing agent aluminum oxide 3%, (bonding agent) active dicalcium silicate by weight percentage 2%, organic wastewater 8% (such as slaughterhouse wastewater, or printing and dyeing factory waste liquid, etc.), anthracite 21% kneading;
[0037] 4) After kneading, stack the modification reaction, cover for 36 hours, and shape it with a pressure molding machine at a pressure of 5 to 7 mPa;
[0038] 5) Same as 6) of Example 1.
Embodiment 3
[0040] 1) same as embodiment 1;
[0041] 2) Sieve and crush the coal gangue to 100-200 for later use;
[0042] 3) 70% of pulverized matter of 2) is mixed with 11% of ultra-fine coal powder of 1), 4% of Huang's purified powder, and 5% of complexing agent Al2O3 by weight percentage;
[0043] 4) Add (bonding agent) 7% of papermaking black liquor and 3% of waste residue from metal magnesium factory to the above mixture and knead;
[0044] 5) After kneading, stack the modification reaction, cover for 48 hours, and shape in front of the furnace.
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