A boiler decoking agent
A decoking agent and boiler technology, applied in fuel additives, solid fuel, petroleum industry, etc., can solve the problem of low efficiency of removing coke scale on the boiler wall, achieve the effect of reducing coal efficiency, reducing particle size, and avoiding loss
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[0029] The preparation method of composite soot cleaning material comprises the following steps:
[0030] (1) According to the mass ratio of 1:5~8, take zinc powder and 10% acetic acid in mass concentration, and under the protection of nitrogen, wet ball milling at 300~350r / min for 12~15h to obtain ball abrasive, and take flake graphite and pulverize it in a pulverizer , pass through a 120-mesh sieve, take the sieved particles and add concentrated nitric acid according to the mass ratio of 4:1~2, stir in a water bath at 28~35°C at 300~450r / min for 20~35min, filter, take the filter residue and wash it with water until it is washed. After the liquid is neutral, move it to 65~80°C oven and dry to constant weight to obtain the dry matter, take the dried matter in a muffle furnace, and heat-treat at 800~900°C for 4~8min to obtain expanded graphite, and take the expanded graphite according to the mass ratio 4: 1~2: 15~20 Add ball abrasive and 20% ethanol solution to mix, oscillate w...
Embodiment 1
[0040] Auxiliary: Mix light calcium carbonate, borax, and zeolite at a mass ratio of 4:1:1 to obtain the auxiliary.
[0041] Mix acetone, pyridine, and water in a mass ratio of 1:2:10 to obtain a solvent.
[0042] Excipients: At 90°C, take water and mix it with zirconium oxychloride at a mass ratio of 8:1, stir at 200r / min for 30min, add glycerol twice the mass of zirconium oxychloride, and citric acid twice the mass of zirconium oxychloride , adjust the pH to 6.5 with a NaOH solution with a concentration of 0.1mol / L, and keep it warm for 4 hours to obtain the adjuvant.
[0043] Concentrated rice washing water: Take rice in water for rice washing operation at a mass ratio of 1:10 to obtain rice washing water, and add Na to the rice washing water at a mass ratio of 6:1:1 2 CO 3 , NaH 2 PO 4 Mix to obtain a mixed liquid, and vacuum evaporate at 60°C to 20% of the original volume to obtain a concentrated rice washing liquid.
[0044] Initiator: Mix ammonium persulfate and so...
Embodiment 2
[0058] Auxiliary: Mix light calcium carbonate, borax, and zeolite at a mass ratio of 4:2:1 to obtain the auxiliary.
[0059] Mix acetone, pyridine and water in a mass ratio of 4:2:10 to obtain a solvent.
[0060] Excipients: At 100°C, take water and add zirconium oxychloride in a mass ratio of 12:1 to mix, stir at 400r / min for 45min, add glycerol with 5 times the mass of zirconium oxychloride, and citric acid with 4 times the mass of zirconium oxychloride , adjust the pH to 7.5 with a NaOH solution with a concentration of 0.1mol / L, and keep it warm for 6 hours to obtain the adjuvant.
[0061] Concentrated rice washing water: Take rice in water for rice washing operation at a mass ratio of 1:15 to obtain rice washing water, and add Na to the rice washing water at a mass ratio of 8:2:1 2 CO 3 , NaH 2 PO 4 Mix to obtain a mixed liquid, and vacuum evaporate at 75°C to 35% of the original volume to obtain a concentrated rice washing liquid.
[0062] Initiator: Mix ammonium per...
PUM
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