Dual-component wetting and single-component curing-type antifreezing dust suppressant for coal transportation and storage
A dust suppressant, curing technology, applied in other chemical processes, chemical instruments and methods, etc., to achieve the effect of low cost, environmental protection, better antifreeze and dust suppression effect
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Embodiment 1
[0026] Dissolve 0.5 g of triethylene glycol and 0.5 g of Triton X-100 in 100 ml of water to prepare a wetting dust suppressant. Dissolve 0.5 g of magnesium hexafluorosilicate in 1000 ml of water to prepare a solidified dust suppressant. Take 2 kg of 10-30 mesh coal and spray it with 100 ml of wet dust suppressant. Then, spread it on a tray of 30 cm x 21 cm x 3 cm, and spray 100 ml of solidified dust suppressant. Test performance according to TB / T3210.1-2009 railway coal transportation dust suppression technical conditions. Dry at 50°C for 2 hours, then put it into a 30 m / s wind tunnel for 5 minutes, weigh the remaining coal weight, and the wind erosion rate is less than 10 mm. Place the above-mentioned tray in a -40°C refrigerator for 2 hours, and the coal can be dumped after taking it out, which can be considered to have achieved the antifreeze effect.
Embodiment 2
[0028] Dissolve 1.0 g of triethylene glycol and 1.0 g of Triton X-100 in 100 ml of water to prepare a wetting dust suppressant. Dissolve 1.0 g of magnesium hexafluorosilicate in 1000 ml of water to prepare a solidified dust suppressant. Take 2 kg of 10-30 mesh coal and spray it with 100 ml of wet dust suppressant. Then, spread it on a tray of 30 cm x 21 cm x 3 cm, and spray 100 ml of solidified dust suppressant. Test performance according to TB / T3210.1-2009 railway coal transportation dust suppression technical conditions. Dry at 50°C for 2 hours, then put it into a 30 m / s wind tunnel for 5 minutes, weigh the remaining coal weight, and the wind erosion rate is less than 10 mm. Place the above-mentioned tray in a -40°C refrigerator for 2 hours, and the coal can be dumped after taking it out, which can be considered to have achieved the antifreeze effect.
Embodiment 3
[0030] Dissolve 1.5 grams of triethylene glycol and 1.5 grams of Triton X-100 in 100 milliliters of water to prepare a wetting dust suppressant. Dissolve 1.5 grams of magnesium hexafluorosilicate in 1000 milliliters of water to prepare a solidified dust suppressant. Take 2 kg of 10-30 mesh coal and spray it with 100 ml of wetting dust suppressant. Then, spread it on a tray of 30 cm x 21 cm x 3 cm, and spray 100 ml of solidified dust suppressant. Test performance according to TB / T3210.1-2009 railway coal transportation dust suppression technical conditions. Dry at 50°C for 2 hours, then put it into a 30 m / s wind tunnel for 5 minutes, weigh the remaining coal weight, and the wind erosion rate is less than 10 mm. Place the above-mentioned tray in a -40°C refrigerator for 2 hours, and the coal can be dumped after taking it out, which can be considered to have achieved the antifreeze effect.
[0031] Tests have shown that the reduction of high and low calorific value of coal is ...
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