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Published on 26 October 2019

ECOLOGY AND ENERGY SAVING AT MINING ENTERPRISES USING PROTECTIVE DEVICES

S.Ya. Davydov, N.G. Valiev, N.V. Grevtsev, L.N. Oleinikova

One of the common ways to deal with unproductive losses of raw materials and atmospheric pollution from technological baths of electrolysis production is aspiration. Ensuring sanitary conditions in the workplace due to only aspiration is difficult due to a sharp increase in the volume of exchange ventilation. The use of airborne suction is accompanied by the entrainment of the electrolyte in the form of a droplet liquid and steam. Heat losses during electrolytic refining of copper in the traditional version reach 70 - 80%. In order to reduce the release of carcinogenic aerosols into the atmosphere, a foam protective layer is created on the surface of the electrolyte. The disadvantage of this method is the low efficiency of protection, the instability of the foam layer, its explosiveness and toxicity of some blowing agents. Placing floats on the bathtub mirror also allows you to close the bathtub mirror. The company refused to use this method due to the inconvenience of servicing electrolysis baths. When caring for the hardening concrete mixture, it is necessary to ensure optimal thermal and humidity conditions, on the observance of which the normal increase in the strength of the material depends. To create a warm environment and to intensify hardening of concrete, work is carried out in light temporary buildings-heaters or under film coatings. In the latter case, the concrete is covered with a vaporwaterproof film and kept in such a closed volume until the design or critical, relative to moisture loss, strength is set. The calculated dependences of determining the thickness of the film coating, tensile strength and elongation at break are presented. Physical-mechanical and electrical characteristics of a plastic film are presented. A description of the design features and operation of the new drive shelter device is given.

CityEkaterinburg
CountryRussia
UDC574:622+621.31:622
Issue2019, № 3 (T. 11)
Key wordselectrolysis production, concrete hardening, clay raw materials, driving covering device, physical and mechanical indicators.
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Categories: Articles

Tags: электролизное производство, твердение бетона, глинистые сырьевые материалы, приводное укрывное устройство, физико-механические показатели.

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ISSN 1998-4502 (Print)                                                            ISSN 2499-975Х (Online)