S. Ya. Davydov

Use of a fluidized bed for the energy-efficient pneumatic transport of fine dust

This article presents characteristics of alumina dust, describes experimental process units, and reports results from experimental studies in which pseudo-fluidization is examined as a technology for the operation of an energy-saving vertical pneumatic conveyor with transverse drag devices installed over its height. The use of such a conveyor makes it possible to reduce the consumption of compressed air several-fold.

Production of Porousized Ceramic Materials with the Use of Depleted Peat-Based Admixtures

It is shown that the production of light porous materials, such as porousized ceramic brick and porousized blocks with the use of depleted admixtures based on modified milled peat, can be useful. Acomparative analysis of the performance indicators of test samples and known analogs of porousized ceramic is carried out. Porousized bricks based on a newly developed composition may be fabricated not only at the level of existing analogs, but also with higher operating thermophysical indicators of the properties.

Energy Conservation Technologies in the Use of a Power-Driven Covering Apparatus in Industry

Power-driven covered apparatuses in the production of ceramic articles, vapor-curing chambers for stimulating hardening of concrete, in reclamation of depleted land containing clay materials for use in the construction industry, and in growing farm crops on clay soils are proposed. A description of the structural features of a power-driven covering apparatus is given. The physico-mechanical properties of polymer films and comparative data on their basic properties are presented.

Container pipe transport with the use of secondary energy resources

An equipment and method are proposed for displacing hot loads on account of their heat. Applications are considered for container pipe transportation in nonferrous metallurgy.

Ways for increasing efficiency of a heat recovery unit

The authors present analysis of variants of using low-potential heat, which improve the efficiency of steam gas-fired boilers, air heating, and cleaning waste gases from toxic emissions in thermal machines. In order to achieve a more complete moisture removal from combustion products, an upgraded design of a contact heat recovery unit is proposed equipped with a drip pan with cooled packing.