Method and device for producing bunker coal with sludge
A coal-burning device and sludge technology, which is applied to fuels, solid fuels, biofuels, etc., can solve the problems of immaturity, low sludge content in sludge and coal slurry, and large amount of stabilizer, and achieve low cost and coal saving. The effect of good effect, saving resources and costs
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[0026] Example one
[0027] Such as figure 1 As shown, a sludge utilization includes the steps:
[0028] 1) Dewatering, the sludge is dehydrated, and the water content in the sludge after sludge dehydration is 45% by weight;
[0029] 2) Mixing: the dehydrated sludge is transported and mixed, and the dewatered sludge is added with a combustion aid and a stabilizer for mixing. The addition amount of coal powder as a combustion aid is 30% of the weight of the dehydrated sludge. Stabilizer The addition amount of the mixture of fly ash, limestone powder and gypsum powder is 8% of the weight of the dehydrated sludge, and the weight ratio of fly ash, limestone powder and gypsum powder in the mixture is 2:1:1;
[0030] 3) Stir, stir and mix the mixed sludge;
[0031] 4) Forming, drying, mixing and mixing the mixed material for forming, and then drying to obtain briquette.
Example Embodiment
[0032] Example two
[0033] A method of using sludge to make coal, including the steps:
[0034] 1) Dewatering, the sludge is dehydrated, and the water content in the sludge after sludge dehydration is 40wt%;
[0035] 2) Mixing: the dehydrated sludge is transported and mixed, and the dewatered sludge is added with a combustion aid and a stabilizer for mixing. The addition amount of coal powder as a combustion aid is 30% of the weight of the dehydrated sludge. Stabilizer The amount of fly ash added is 10% of the weight of the sludge after dehydration, and the binder humic acid binder is added, and the amount of humic acid binder added is 5% of the weight of the sludge after dehydration;
[0036] 3) Stir, stir and mix the mixed sludge;
[0037] 4) Forming, drying, mixing and mixing the mixed material and conveying for forming, and then drying to obtain briquette.
Example Embodiment
[0038] Example three
[0039] A method of using sludge to make coal, including the steps:
[0040] 1) Dewatering, the sludge is dehydrated, and the water content in the sludge after sludge dehydration is 50wt%;
[0041] 2) Mixing: the dehydrated sludge is transported and mixed, and the dewatered sludge is added with a combustion aid and stabilizer for mixing. The addition amount of the combustion aid is 30% of the weight of the dehydrated sludge, and the combustion aid is made of coal The powder weight content is 75% and the remainder is composed of wood chips; the addition of stabilizer limestone powder is 15% of the weight of the sludge after dehydration, and the binder humic acid binder is added, and the addition amount of humic acid binder is after dehydration 9% of the weight of the sludge, adding the foaming agent sodium lauryl sulfate, the addition amount of sodium lauryl sulfate is 0.5% of the weight of the sludge after dehydration
[0042] 3) Stir, stir and mix the mixed slu...
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