dust suppressant

Abstract

The invention discloses a dust inhibitor, which comprises the following raw material in percentage by weight: 0.6 to 0.8 percent of plant seed colloid, 0.1 to 0.3 percent of modified cellulose, 0.05 to 0.09 percent of dispersant and the balance of water. The dust inhibitor can be prepared at normal temperature in a common mixing equipment from mixed aqueous solution of plant seed colloid, modified cellulose, crosslinking agent, dispersant and reinforcing agent; and after being prepared, the dust inhibitor can be sprayed onto the surface of coal in carriages to allow the coal to form a layer of cured film on the surface, the viscosity of the film is high, the wind corrosion rate of the film is low, so that the dust pollution along railways in railway transportation of the coal and the dust loss of the coal are avoided. Besides, dust inhibition in railway coal transportation, the dust inhibitor can be used for dust inhibition on roads in mining areas, urban roads, constructions sites, stations, ports and the like so that the dust inhibitor can be used almost without being limited by fields, and the dust inhibitor can be widely used.

Description

technical field [0001] The invention relates to the technical field of preventing and controlling dust diffusion, in particular to a dust suppressant for suppressing dust diffusion. Background technique [0002] At present, various types of locomotives are used to transport various minerals on railways and highways. These locomotives include rail locomotives in railway transportation and automobiles in road transportation. They generally transport bulk materials such as coal, gold concentrate, iron concentrate, and copper concentrate. They are all transported by gondola car. During the transportation process, due to the bumps caused by the roadbed, turnouts and rail facilities, coupled with the wind force, especially when the train enters the tunnel, it will form a momentary strong disturbance air flow, resulting in a fineness of less than 30 mesh standard. The fine mineral particles from the sieve are easily blown away from the vehicle body, falling onto the road surface, a...

AI Technical Summary

Problems solved by technology

[0002] At present, various types of locomotives are used to transport various minerals on railways and highways. These locomotives include rail locomotives in railway transportation and automobiles in road transportation. They generally transport bulk materials such as coal, gold concentrate, iron concentrate, and copper concentrate. They are all transported by gondola car. During the transportation process, due to the bumps caused by the roadbed, turnouts and rail facilities, coupled with the wind force, especially when the train enters the tunnel, it will form a momentary strong disturbance air flow, resulting in a fineness of less than 30 mesh standard. The fine mineral particles sieved are easily blown away from the vehicle body, falling onto the road, and then rolled by subsequent vehicles to form secondary dust with smaller particle size and higher concentration, resulting in the loss of minerals and dust pollution along the road

[0003] Especially in coal transportation by railway, the problem is even more serious: first, it causes serious pollution to the environment along the line, and the coal dust scattered along the line can affect the normal growth of crops and trees in the farmland within 50-100m on both sides of the railway. The bodies of other vehicles passing by also caused serious pollution; secondly, the impact on equipment along the line was very large. Coal dust seriously polluted the track bed of the railway line and aggravated the degree of compaction. In heavily polluted sections, coal dust has buried fasteners, Parts such as sleeper boards bring considerable difficulties to the daily maintenance and repair of the public works department. The corrosion of rails and fasteners is serious, causing safety hazards; third, it poses a threat to traffic safety. When the cargo height is 100-150mm lower than the compartment, coal particles with a larger diameter such as 20-50mm can also be blown out of the compartment

The thickness of coal particles increases at a rate of about 200-300mm per month at the entrance of the tunnel. The concentration of coal dust in the tunnel is suffocating, and the visibility is less than 10-15m. The heat dissipation net increases the temperature of the working environment of the electrical equipment in the locomotive, often causing equipment failures, reducing the integrity rate and safety, and seriously threatening the safety of train operation; fourth, there are serious potential safety hazards hidden. According to calculations, If the coal dust concentration in the tunnel reaches its dust explosion concentration range (the lower limit of the coal dust explosion concentration is 114mg / m 3 ), once it encounters an open flame (such as catenary discharge, sparks from downhill train braking, etc.), it may cause an explosion accident, which seriously threatens driving and personal safety.

The first two methods cannot be implemented because they are difficult to match with existing automated production lines

The water spray dust suppression method cannot meet the actual requirements due to rapid evaporation

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