Dust-suppression agent and use method thereof

Abstract

The invention relates to a dust-suppression agent, which is prepared by the following methods: A. material preparation: respectively weighing 3 to 5 parts of starch, 35 to 40 parts of water, 15 to 20 parts of crylic acid, 30 to 40 percent of 30 percent sodium hydroxide, 8 to 12 parts of initiating agent and 1 to 5 parts of cross-linking agent by weight parts for standby; and B. preparation: firstly, mixing the crylic acid and 30 percent sodium hydroxide to be prepared into sodium acrylate solution for standby, adding the starch and the water into a reaction kettle to be stirred and uniformly mixed at the room temperature, heating the materials to 75 to 80 DEG C, then, carrying out pasting for 1 hour at the constant temperature, stopping heating for reducing the temperature in the reaction kettle to 45 to 50 DEG C, then, maintaining the constant temperature, introducing nitrogen gas for replacing air in the reaction kettle, sequentially adding the prepared sodium acrylate solution, the initiating agent and the cross-linking agent into the reaction kettle, continuously introducing the nitrogen gas, carrying out reaction for 3 hours under slow stirring at the constant temperature, filtering out water, drying the materials in a baking oven between 70 and 80 DEG C, and obtaining a powdery dust-suppression agent after the pulverization. The dust-suppression agent is used for bulk coal pile surface layer dust prevention treatment, and can effectively suppress the flying of the bulk coal pile surface layer dust.

Description

technical field [0001] The invention relates to the technical field of environmental pollution control, in particular to a dust suppressant for preventing dust on the surface of loose coal piles during coal mine transportation and a use method thereof. Background technique [0002] As we all know, bulk materials such as coal are easy to blow up with the wind when they are stacked or transported in the open air. Flying dust not only pollutes the air and endangers human health, but also causes material loss and causes economic losses to enterprises. Dust may also cause safety accidents. In the open-air coal storage plants of some thermal power plants, due to the flying coal dust, the deposited dust in heating pipes, cables, etc. can spontaneously ignite and cause fire hazards. The flying or splashing of bulk materials in railway transportation is likely to cause equipment failures, potential safety hazards, and serious traffic accidents to railway locomotives, equipment alon...

AI Technical Summary

Problems solved by technology

[0003] The existing solution is to cover the bulk material with tarpaulin or sprinkle water, but neither can effectively solve the problem

Covering with tarpaulin reduces operating efficiency, makes recycling difficult and high in cost

Sprinkling water can only prevent dust for a short time, and it needs to be sprayed frequently. This method is a serious waste of energy, and it cannot prevent dust and splash for long-term stacked materials and long-distance transported bulk goods.