Equipment with diesel engines is used in all mining enterprises. Monorail diesel transport is of great importance in coal mines, as it facilitates the heavy labor of workers when transporting materials and people, fixing mining workings, refueling and repairing equipment, which leads to an increase in the speed of tunneling operations. Reducing the concentration of harmful gases from diesel-hydraulic locomotives at the workplaces of coal mine locomotive drivers can be ensured by the use of additives to diesel fuel that reduce the volume of harmful gas emissions during the operation of diesel-hydraulic locomotives. Additive ester-based on vegetal oil in the amount of 5 mass % in a mixture with hydrotreated diesel fuel reduces the concentration of carbon monoxide by 19-60 %, nitrogen oxides by 17-98 %, depending on the operating mode of the engine, the smoke content of the exhaust gases is reduced to 71 %. There is an improvement in working conditions at the workplace of the driver of a diesel-hydraulic locomotive by the chemical factor due to the reduction of the class of working conditions from 3.1. to 2.
The article describes new technology of heating downcast shafts in coal mines in Ukraine using heat generators (air heaters) of mixed and indirect action type. It compares this method with traditional heating systems for downcast shafts and describes all their disadvantages. It is shown that application of new heating technology enables not building such elements as boilers and pipelines and not buying metal-consuming heaters. These peculiarities will help to significantly reduce capital and operation costs for construction and operation of heating system with significantly shortened commissioning periods for heating systems. The article describes an example of heater unit design layout for heating downcast shaft in mine «Scheglovskaya-Glubokaya» at colliery group «Donbass» using mixed type heat generators. It presents a layout of sensors for controlling parameters of ventilation air flow taking into account incoming hazardous combustion products form methane-air mixture combustion in channels of heating unit. The article mentions features of automated control system providing protection of heat generators in emergency situations. It also notes disadvantages of mixed type heat generators limiting their application in Russian Federation. Together with heat generators of mixed type the article also describes a working principle of heat generator of indirect action type, which to the fullest extent possible meets requirements of Russian Federation legislation and regulation for application of this heat generators in coal mines conditions. The article has a principal working scheme of heat unit layout using this type of generator. It is shown that after development of corresponding normative documents regulating processes of design, construction and operation of heating units using heaters of indirect action, their application in Russian coal mines will be possible without breaking Safety standards and rules.
The article describes the results of the implementation of investment projects in the field of complex dedusting implemented in major coal producing companies in Russia. Experimental study of the processes reduce the levels of dust in the workplace in the application of modern systems of irrigation and aspiration systems. The factors that determine the mass and composition of particulate airborne dust at various ways of dust suppression. The results of the analysis of the laser dispersed composition of particles removed from the air of the working area
The using of chemically-active reagents is one of the most promising directions in the process of dust suppression. Due to the need to develop new ways of suppression of dust during storage of the rock mass. The paper provides the analysis of the use of calcium carbide as an element of the dust suppression system and the system of permafrost rocks.
In memoirthe main rules of radiation safety in building and operation of underground structure also methods of formation of a radiation environment.
The principal new approach for the air pollutions control in form of automatic control system (ACS) is considered. The object of control is represented by the mathematical model inputoutput. The theoretical and practical results of the ACS creation are cited.
In article the main marks of history of social insurance from operational injuries since the Russian Empire and are stated up to now.
Article represents a historical sketch how there was a formation of principles of safety since the most ancient times up to now. In it is told about formation of legal and social norms in the work sphere for ensuring the right and freedoms working.
In article the possible approach to an assessment of production acceptable risk at level of mining branch or the large enterprise is presented (mine, mine), specifics of which production activity is objectively connected with ineradicable today dangers.
The article gives information on the sickness rate and industrial injuries at coal-mining operations. Professional occupation and ages of workers that the most susceptible to illnesses are shown.
Изложена сущность одного из способов управления состоянием горного массива на примере отработки пласта Мощного Воркутского месторождения длинным очистным забоем. Сделаны выводы о возможности отработки удароопасных пластов пологонаклонного залегания при повышенной скорости подвигания с применением этого способа.
