Purpose. The goal of the article is to develop a method for identifying hazards and predicting the possibility of a technogenic emergency caused by the spread of compounds with heavy metals in the soil during long-term storage of galvanic sludge in open areas. Methodology. The method is developed on the basis of a mathematical model that allows estimating changes in the depth of distribution and level of soil salinity over time using initial information about soil structure and its characteristics (molecular diffusion coefficient, volume humidity), annual volumes and conditions of sludge storage in the enterprise. Restrictions are set: the presence of harmful substances on the soil surface with a concentration that exceeds the permissible level; inadmissibility of harmful substances to aquifers. Results. The practical use of the method made it possible to identify the main dangers and predict the possibility of an emergency situation with negative environmental consequences during long-term storage of galvanic waste in open areas. The dynamics of soil salinity levels and the depth of penetration of heavy metals increase over twenty years of conservation has been determined, as well as the possibility of hazardous compounds entering groundwater has been assessed. Originality. The non-linear, non-stationary mathematical model is based on the theory of physico-chemical hydrodynamics of cellular media. The process of motion of metal salts has been described by the differential equation of motion and conservation of mass of matter for vertical mass transfer of matter. Practical value. Formalization of information about the hazards arising during the storage of industrial waste with chemically active elements allows to consider the subject area as a complex dynamic system consisting of objects of different nature, the totality of which determines the level of danger of emergencies with environmental consequences. The developed method makes it possible to transfer the obtained results to decision-making support systems, predicting possible consequences and material costs associated with post-emergency measures, motivating the management to take measures in advance.

Using the SolidWorks automated design system, analytical studies of the “Turbula” type rolling machine with an additional movable rocker link with a vertical axis of rotation were carried out for the possibility of determining the dependence between the change in the movement modes of the working array and the design features of this rolling machine. It is noted that the movement of the working array in the filling tanks with different types of movement can be carried out in cascade, waterfall, mixed, as well as closed modes of movement. During the implementation of each mode of movement of the working array, conditions are created for the performance of appropriate felting technological operations or mixing of loose fine-dispersed substances. It was established that the change in the modes of movement of the working array in the rolling container performing complex spatial movement depends on three factors – the large-scale standard size of the rolling machine, the angular velocity of the drive shaft and the ratio of the interaxial distance of the container to the interaxial distance of the forks, which is characterized by the coefficient λ, the relationship is established the relationship between these factors. Mathematical dependencies have been obtained to determine the maximum angular speed of the drive shaft of the “Turbula” type rolling machine with an additional movable rocker link with a vertical axis of rotation, which will correspond to the implementation of the necessary mode of movement of the working array, when it moves in a given capacity. The obtained results of analytical studies can be used in the relevant design bureaus of machine-building enterprises at the stage of designing rolling equipment with complex spatial movement of working capacities.

The disadvantages of using machine mechanisms in the kinematic circuits of which contain a passive connection are described. A three-dimensional statically defined mechanism of the “Turbula” type machine without the presence of a passive connection in its kinematic circuit is proposed. This design of the machine is realized due to the introduction into the kinematic circuit of an additional moving link – the second working capacity. Operation of this design of the car allows to increase productivity of processing of details considerably due to the fact that there is a possibility on one car to carry out two different technological operations at the same time or to process two parties of various details at the same time. The principle of operation of the mechanism and the machine is described. Analytical researches of the basic geometrical and constructive parameters of the galvanizing machine with two working capacities which, as a whole, provide its rational functioning are executed. The relationship between the geometric parameters of the moving parts of the machine and the change in the amplitude of their movements. In particular, mathematical dependences are obtained, which make it possible to calculate the amplitude of the angle change between the axes of two tanks, as well as the amplitude of the distance change between mutually perpendicular geometric axes of the forks to the working tanks. The operation of this machine design will significantly increase the productivity of machining parts due to the fact that it is possible to perform two different technological operations on one machine or simultaneously process two batches of different parts. The obtained results of analytical researches can be used in the corresponding design bureaus of the machine-building enterprises at a stage of designing of the galting equipment with difficult spatial movement of working capacities.

A new design of the galvanizing machine is proposed, which is equipped with two working tanks that perform complex spatial movement. The structure and principle of operation of the developed design of the machine are accurately described. The developed design of the machine with two capacities that perform complex spatial movement allows to increase considerably productivity of processing of details due to the fact that there is a possibility to carry out two different thawing technological operations on one machine or to process two parties of different details at the same time. The design of the machine, during operation, allows to involve in working process, both both working capacities, and one. Equipping the machine with a special drive design with four Hook hinges allows to reproduce the required law of change of angular velocity on each driving shaft of the machine, the implementation of which will create conditions that will ensure the same intensity of the working array between opposite ends of the tank in opposite directions. process, as well as uniform dynamic loading of all moving parts. Analytical studies were performed, within which some geometrical parameters of the machine design were determined, in particular, the value of the angle α between the axes of the shafts of each Hook hinge was established, which will ensure the implementation of the required angular velocity law on the machine drive shaft. The relationship between the extreme values of the law of change of the angular velocity of the driving shafts of the machine and the magnitude of the angles in each Hook hinge is established. The obtained results of analytical research can be used in the relevant design offices of machine-building enterprises at the stage of designing galvanizing equipment with complex spatial movement of working tanks.

Aspects of processing polymer parts in rolling mills are considered machines with complex movement of working capacities in the industry mechanical engineering The principles and regularities are highlighted construction of such equipment. For engineers, students and post-graduate students of the "Industrial mechanical engineering", "Applied mechanics" and "Automotive transport". It may be useful for the employees of the Research Institute and KB that specialize in the design of rolling equipment and production of polymer parts.