filtration drying

INVESTIGATION OF THE EFFICIENCY OF A BEET PULP FILTRATION DRYING PROCESS

This article presents the results of experimental studies investigating the energy consumption per 1 kg H2O required for the filtration drying of beet pulp.  The optimal process parameters for the removal of 1 kg of moisture from the dried beet pulp were determined, which included the height of the layer of dried material H=120 mm, the thermal agent temperature T = 90 °C and the thermal agent velocity v0 = 1.76 m/s.  Regarding these parameters, the total energy consumption for drying by the filtration method from the initial moisture content of 88.12 % wt.

INVESTIGATION OF THE BEET PULP FILTRATION DRYING KINETICS

The article describes the results of experimental studies of the kinetic regularities of beet pulp drying by the filtration method. The influence of the main process parameters on the rate of moisture removal, including the height of the wet layer of material H (0,04 m, 0,08 m, 0,12 m, 0,16 m), temperature T (60 °C, 70 °C, 80 °C, 90 °C) and the velocity of the thermal agent v0 (1.24 m/sec, 1.76 m/sec, 2.29 m/sec, 2.82 m/sec), was investigated. The kinetic dependencies for the periods of complete and partial saturation of the thermal flow with moisture were derived.

Kinetic Regularities of the Filtration Drying of Barley Brewer’s Spent Grain

The paper describes the study of the kinetics of filtration drying of barley brewer’s spent grain. The dependencies of the process at different parameters of the stationary layer and the heating agent are presented: different heights of the wet material H (40 mm, 80 mm, 120 mm, and 160 mm), different temperatures of the heating agent T (50 °C, 70 °C, 80 °C, and 90 °C), and the velocities of the heating agent through the stationary layer of material v0 (1.26 m/s, 1.55 m/s, 1.81 m/s, 2.31 m/s, and 2.82 m/s).

Нydrodynamics of filtration of heating agent through stationery layer of beet pulp

The experimental results of the hydrodynamics of filtration of the thermal agent in a stationary layer of granular chalk are given. As a result of the conducted experiments, new calculation dependencies were obtained for determining the hydraulic resistance of a layer of granular chalk depending on the filtering speed of the heat agent and the height of the material layer. Calculation dependencies for determining the coefficient of hydraulic friction were also proposed and its dependence on the Reynolds number was established.

DRYING OF THE MICROSPHERE FOR THE MANUFACTURE OF HEAT-INSULATING DRY BUILDING MIXES

A promising area for the production of heat-insulating dry building mixes is the use of the microsphere of thermal power plants, that will promote the formation of thermal insulation, strength, chemically and thermally stable properties of products. To dry the microsphere, a filtration method was proposed which consists in filtering the heat agent through the porous structure of the material in the direction "material - perforated grate".

Heat Transfer Process During Filtration Drying of Grinded Sunflower Biomass

Filtration drying of grinded sunflower stems as the unit operation of the technological line for solid biofuel production has been proposed. Theoretical aspects of heat transfer processes during filtration drying have been analyzed. The effect of the drying agent velocity increase from 0.68 to 2.05 m/s on the heat transfer intensity has been established. The values of heat transfer coefficients have been calculated on the basis of the thin-layer experimental data and equation .

Heat Transfer Process During Filtration Drying of Grinded Sunflower Biomass

Filtration drying of grinded sunflower stems as the unit operation of the technological line for solid biofuel production has been proposed. Theoretical aspects of heat transfer processes during filtration drying have been analyzed. The effect of the drying agent velocity increase from 0.68 to 2.05 m/s on the heat transfer intensity has been established. The values of heat transfer coefficients have been calculated on the basis of the thin-layer experimental data and equation .

Рroduction of light fillers on the basis of technogenic raw materials

In Ukraine, along with the growing demand for tonnage production of light fillers, the need for raw materials is growing, considering that most of the range of light fillers is made from natural raw materials. Thus, a promising direction of utilization of TPP slags and coal concentrate obtained by enrichment of primary coal sludge is there involvement to the production process after preliminary drying.

Hydrodynamics of Cotton Filtration Drying

The work deals with the results of using the cotton fiber as the purest and most natural cellulose, as well as a raw material for the production of various chemical products. The necessity of cotton fiber preparation for its use in the chemical industry and expediency of its drying via a filtration method has been substantiated. The geometrical parameters of individual cotton villi, physical and mechanical characteristics of the layer were experimentally investigated.