Type II coal dust suppressant as well as preparation method and application thereof

The invention discloses an II-type coal dust suppressant and a preparation method and application thereof, 100 parts by weight of the dust suppressant comprises 5-20 parts of a crusting agent, 5-20 parts of a binder, 2-10 parts of a flexibilizer, 2-10 parts of a reinforcing agent, 1-3 parts of a penetrant and the balance of pre-gelatinized starch. The toughening agent and the reinforcing agent are adopted to improve the toughness and the strength of the II-type coal transportation dust suppressant, the problem that the dust suppression effect is poor due to large slope and high wind speed in railway coal transportation is solved, and the II-type coal transportation dust suppressant has obvious economic benefits, social benefits and environmental benefits. 本发明公开了一种Ⅱ型煤炭抑尘剂及其制备方法和应用，所述抑尘剂按重量份100份计，包括：结壳剂5-20份，粘结剂5-20份，增韧剂2-10份，增强度剂2-10份，渗透剂1-3份，余量为预糊化淀粉。本发明采用增韧剂和增强度剂来提高Ⅱ型煤炭运输抑尘剂的韧性和强度，解决了铁路煤炭运输因坡度大、风速高而抑尘效果不佳的问题，具有明显的经济效益、社会效益和环境效益。