SU1599565A1 - Preventive composition for avoiding blowout of bulk material - Google Patents

Abstract

The invention relates to mining. The goal is to increase the elasticity of the resulting film and lower the freezing point of the composition. It contains ingredients in the following ratio, wt.%: Light catalytic cracking gas oil with a boiling point of 190-350 ° C 27.0 - 68.6

cracking - residue from thermal cracking of tars 0.7 - 0.9

cracking - residue from thermal cracking of heavy aromatized distillates of secondary processes 0.7 - 2.1

fuel oil 30 - 70. When applying this composition to the surface of bulk cargo in cars over the entire temperature range from 15 to -50 ° C, a flexible film is formed. 1 tab.

Description

The invention relates to mining and can be used to prevent the loss of coal and other bulk material from damage during transportation over long distances or during storage and preservation of them in open air.

The purpose of the invention is to increase the elasticity of the resulting film and lower the freezing temperature of the composition.

The prophylactic composition for preventing the blowing of the bulk material contains, in wt%:

Light catalytic cracking gas oil

boiling point

190-350 ° C27.0-68.6

Cracking - residue from

thermal cracking

tar oil 0,7-0,9

Cracking - residue from thermal cracking of heavy aromatic distillates of secondary processes 0.7-2.1 Fuel oil 30-70 i To compare the known compositions and the proposed method, tests were carried out and the data on them are tabulated.

From the analysis of the table composition avt.Sv. No. 519468 differs from the one offered by the components, as well as by the fact that it can be used at temperatures up to -20 ° C, which is inconsistent with the development goal of the proposed composition. At temperatures below -20 ° C, the film becomes brittle, crumbly, and cannot serve as weatherproofed fabric.

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 Composition on auth. No. 1276835 contains the same components as the pre-riaraeMbM, but differs from it in the composition of the components. It is applied

To fight dust on career roads, on which the upper layer is weathered, dusty, and the lower one is packed and compacted.

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The composition for dust suppression is applied to the road surface, the top layer of the Composition immediately stiffens (examples 4 intsg. No. 1276835), i.e. its specific surface is reduced and fine dust particles (90% -74pk) are adsorbed agglomerated around the Formed centers of solidified Particles, resulting in a decrease in the specific surface of the upper layer of the road. At the same time, the lower dense layers of the highway are bare, but they do not heat until their wind storm begins. When loading wagons in bulk, the bulk load (coal) is fed from above into the wagon and the maximum natural compaction corresponds to 0.177 MPa, which in no way corresponds to the compaction of the upper layer of roads, i.e. when applied to the research institute of the binder composition according to the auth. 1276835 on the upper layer of coal, agglomeration of fine particles of coal to 74 pk occurs, the specific surface of the coal decreases, and at the same time the lower layer of coal is exposed, which will undergo weathering.

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Claims (1)

When applying the proposed composition to the surface of bulk cargo in cars in the entire temperature range from 15 to (-50) C is formed in a coelastic film. The total loss of coal after testing in the aerotube is minimal compared to analogs. Invention Formula A prophylactic composition to prevent blowing bulk material, including light catalytic cracking gas oil with a boiling range of 190-350 seconds, cracking — the residue from thermal cracking of tars, cracking — the residue from thermal cracking of heavy aromatic distillates of secondary processes, and fuel oil that differs from that, in order to increase the elasticity of the resulting film and lower the freezing temperature of the composition, the ingredients are taken in the following ratio, wt.%: Light catalytic cracking gas oil with a boiling point of 190- Cracking - residue from thermal cracking of tars cracking - the residue from thermal cracking of heavy aromatic distillates of secondary processes 0.7-2.1 Fuel oil 30-70 27.0-68.6 0.7-0.9 Comparative characteristics of the known contrasted compositions and samples of the proposed composition becoming, mas.ZH; Light catalytic cracking gas oil with boiling point preheat, 190-350 0 Cracking - residue from thermal cracking of tars. Cracking - residue from thermal cracking of heavy aromatized distillates of secondary processes Topochemical fuel oil Cracking - residue of sulfur oils Distillate fraction of sulphurous oils with a boiling range of 270-L10 С 1.0 60 60 -12 40 -20 75,678,979,92 27.0 47.8 68.6 3.83.93.99 0.90,80.7 15.8 1.4 15.99 2.1 0.170 1,40,7 5030 -26. -46 15-8-5P Comparative characteristics of the known contrasted compositions n ovratsrv proposed composition Etc kinematic C O - 1250 -ten-. -20950800 -25-. -30--40. -45 .. -50-- film before the test Fragile film There are no films of particles or particles of dust The resulting film after testing Fragile film The destruction of the film after the test, Z. The total loss of coal after testing in the aerotube, kg 1599565 , 6 tic known opposable rv proposed composition Continuation 950 850 1250 1250 800 0.30 No film, agglomerates of dust particles of the composition and fine particles of dust Pleiki no. The amount of pelletized particles. Increased 10,128 0.28 0.32 0.06 0.05 0.03