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This paper presents a system for measuring the geometry of powered roof support sections (Shield Support Monitoring System, SSMS). The problem of measuring the geometry of powered roof support sections for the purpose of predicting geological hazards during the rock excavation process is presented. Information on the construction and implementation of the SSMS and research at the Budryk Mine is included. The research aimed to evaluate both the precision and accuracy of the measurement apparatus created, as well as to examine how operating conditions affect the system’s usability. An analysis of inclinometer measurement errors in the prototype system was conducted during in situ tests, demonstrating minimal scattering and high sensor accuracy according to the provided data.

W artykule opisano problematykę aktywnego balansowania ogniw. Przedstawiono układ aktywnego balansowania (BMS) ogniw baterii przeznaczony do zastosowania w napędach elektrycznych maszyn górniczych, tj. wozów wiercących i ładowarek, uwzględniając korzyści płynące z zastosowania powyższej techniki. Omówiono strukturę układu,z uwzględnieniem jego rzeczywistej formy i wyników badań. Omówiono funkcjonalność poszczególnych modułów układu BMS, umożliwiającą przekazywanie energii i jej właściwy rozkład pomiędzy ogniwami

This article provides the results of the first attempt to substantiate the rates of energy consumption and energy savings during the well-drilling process. It is proposed to accept the electrical energy consumption rate as a planned indicator of consumption of resources in the production of a unit of work of a specified quality. For a comprehensive assessment of the efficiency of use of energy resources during production of similar or substitute work, we determined specific energy consumption (designed, planned, actual), which includes direct consumption of all energy types in the production of a unit of work for basic and auxiliary production and operational needs, including from the consumption volume of mentioned resources and energy supply. Classification of consumption rates of electrical energy according to its action period and size scale has been proposed. The composition and amount of energy consumption rates during well-drilling have been described. The technological, expedition, and group rates of electricity consumption for drilling wells during design, survey, and technological work were determined. Electricity input items in drilling operations have been determined. For the first time, a set of measures to reduce energy costs during drilling is shown. The diagram developed for assessment of well performance allows prediction of technological and expedition rates of electricity consumption. Its creation, knowledge/understanding, implementation, analysis, and assessment by means of telemetry will allow evaluation of energy consumption when simulating drilling operations with varying drilling parameters. It will also provide an opportunity to select optimal technological or expedition rates of electricity consumption, taking account of drilling components at each depth: maximum drilling rate under constant weight on bit or maximum penetration. Based on the diagram, organizational and technical measures are proposed to save energy resources and reduce their consumption. The proposed measures allow saving up to 30–40% on energy costs.

Increasing the maximum speed limit of suspended monorails, which became a very popular means of auxiliary transport, is one of the aspects of improving the efficiency of work in underground coal mines. It is especially important to enable higher (than allowed by the law) travel speed, when moving the crew to and from the workplace, which is often very distant from the shaft, and can take more than one hour of travel. Increasing this speed will make it possible to extend the effective working time of miners, which should have a positive impact on the economics of the mine. However, driving at a higher speed is also associated with increased risk of a negative impact of dynamic overload to people, e.g., during emergency braking of the suspended monorail. The concept of sequential emergency braking was developed in order to avoid excessive deceleration affecting passengers and the operator of the monorail, as well as to minimize the dynamic loads acting on the rail suspensions and on the roadway support frames, which could cause serious accidents. The developed assumptions with regard to the new method of braking are innovative in the area related to hard coal mining, where there are currently no such solutions. According to the principles of the developed concept, the total braking force was divided into two stages. The activation of the second stage depends on the deceleration measured after the time delay from activation of the first stage of braking. We present the results of the numerical simulations, which aimed to analyze the impact of changing the parameters of the braking algorithm on the braking deceleration, the braking time, and the braking distance. The possibility of changing the braking force and downward emergency braking on a high inclination angle were also taken into account during the numerical simulations. Use of the developed emergency braking algorithm enables the optimization of this process at a higher speed than is currently used. This aspect is also very important in increasing the safety for people travelling at a higher speed limit. The numerical simulations provide knowledge for safety in terms of the dynamic overload during emergency braking, without injury risk to miners or damage to equipment.

W artykule opisano system sterowania KOGASTER w konfiguracji przeznaczonej do górniczych maszyn z napędem spalinowym. Sprecyzowano wymagania jakie muszą spełniać instalacje elektryczne napędów spalinowych. Opisano podzespoły systemu KOGASTER realizujące funkcje sterujące, w tym najnowszy komponent - modułowy zasilacz z podtrzymaniem akumulatorowym i magistralą komunikacyjną. Przedstawiono połączenie modułów systemu KOGASTER dedykowane do sterowania napędem spalinowym w mobilnej maszynie górniczej.

W artykule przedstawiono wybrane zagadnienia z zakresu zaawansowanych systemów sterowania mobilnych maszyn górniczych, z wykorzystaniem magistrali rozproszonej CAN, oraz perspektywy rozwoju systemów sterowania dedykowanych do pracy przestrzeni zagrożonych wybuchem metanu i/lub pyłu węglowego. Jednym z kierunków rozwoju systemów jest wprowadzenie w sieciach bezprzewodowych czujników samozasilających, co umożliwia ich zastosowanie w miejscach, w których zastosowanie czujników konwencjonalnych jest utrudnione. Przedstawiono również zagadnienie inteligencji w samoorganizacji ścieżek transmisji danych (trasowanie, routing) w złożonej sieci sensorycznej.

Systemy monitoringu, sterowania i automatyzacji, zdolne do adaptacji i uczenia się, są co raz szerzej stosowane w praktyce przemysłowej. Wzrasta również obszar zastosowań systemów inteligentnych w polskim górnictwie węgla kamiennego. W artykule przedstawiono wybrane prace realizowane w Instytucie Techniki Górniczej KOMAG, we współpracy z KOPEX MACHINERY S.A., KWK Budryk i Gabrypol Sp. J. Z. i R. Juszczyk, w powyższym zakresie, które podnoszą wydajność maszyn i procesów technologicznych oraz zwiększają bezpieczeństwo pracy w górnictwie. Zaprezentowano modułowy, iskrobezpieczny system sterowania KOGAster, zintegrowany system sterowania węzłem osadzarkowym KOGA, system wibrodiagnostyczny maszyn górniczych VITO oraz system elektronicznej identyfikacji i ewidencji części maszyn Iris jako przykłady prac nad inteligentnymi maszynami górniczymi.