Estimation of dust cohesion for analysis of reliability of the environmental protective systems from dust pollution

In this article we analyse methods of determination of cohesion of disperse materials and suggest simpler solution. We consider energy correlations provided with plastic deformation of material in cylinder under the pressure of plunger. Moreover, finite tension which is chargeable for cohesion of disperse material is defined. Consequently, paper contains equation of disperse material equilibrium under the extrusive load. Supplementary elastic stresses are also taken into consideration. Paper presents extrusion forces that were received by means of experiments. Correlation between extrusion force and sealing load is an indicator of cohesion of disperses material.