Preliminary research to determine the thermal condition of the belt conveyor’s drive unit in an underground hard coal mine

Stempniak, Marta; Zhironkin, Vitaly; Trzop, K.; Szurgacz, Dawid

doi:10.1088/1755-1315/684/1/012010

Cited by 4 publications

(9 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to obtain reliable measurements results, it is important to determine the emissivity of the tested elements. The higher the emissivity of the tested object, the more heat it emits [9,6,11].…”

Section: Applications Of Thermovision In Underground Minesmentioning

confidence: 99%

“…In underground mines, thermal imaging cameras are used primarily by maintance services that monitor the condition of devices. They are also used by mine rescuers during rescue operations [6,12]. In the research in KWK ROW Ruch Chwałowice thermal cameras Dräger UCF 9000 i FLIR i60 were used.…”

Section: Applications Of Thermovision In Underground Minesmentioning

confidence: 99%

“…Those two types are approved for use in underground mine conditions. Thermal imagers work in several modes: thermal scan (locating hot spots); fire (fire fighting); persons (for search and rescue operations); Scan PLUS (seach for heat sourcesreal image); hazardous substances (leak detection and determination of leakage levels allowing the identification of various hazards) [6].…”

Section: Applications Of Thermovision In Underground Minesmentioning

confidence: 99%

“…Nowadays it is possible to observe ongoing research on combating natural hazards [7,8]. In the works on innovative technologies [3] significant conclusions were shown regarding the increase of work safety in underground mining [4,5,6,7]. Due to the high risk posed by the occurrence of fires in mining excavations it is necessary to regularly analyze the term conditions of devices which are the most common cause of fire hazard formation.…”

Section: Introductionmentioning

confidence: 99%

“…Due to the high risk posed by the occurrence of fires in mining excavations it is necessary to regularly analyze the term conditions of devices which are the most common cause of fire hazard formation. The temperature measurements described in this paper are further elaborated on in [6], while the data that has been analyzed for the copper mine can be found [5,8]. The purpose of this consideration was to describe the conditions in which dangerous situations occur, critical temperatures of devices, favorable conditions -the composition of the mine air and its flow.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

The essence of thermovision research in the prevention of fires in underground workings

Stempniak

2021

E3S Web Conf.

View full text Add to dashboard Cite

Underground fires are phenomena that pose a possibly fatal threat to human life, and they are particulary dangerous in the environment of underground workings where the amount of space and number possible escape routes are limited. Therefore, it is important to carefully control changes in temperature and the condition of machinery and equipment used in mine in order to avoid critical situations. The most common cause of fires are defects in mechanical and electrical devices, in order to conduct an analysis of their condition thermal imaging is perfectly suitable. In this article approximed a problem of underground fires, thermal imaging diagnostic method, temperature measurements taken in the KWK ROW Ruch Chwałowice in Rybnik, made an analysis of publicly available data from the KGHM mines and methods of combating the factors leading to the fire emergency been proposed.

show abstract

Section: Applications Of Thermovision In Underground Minesmentioning

confidence: 99%

Section: Applications Of Thermovision In Underground Minesmentioning

confidence: 99%

Section: Applications Of Thermovision In Underground Minesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The essence of thermovision research in the prevention of fires in underground workings

Stempniak

2021

E3S Web Conf.

View full text Add to dashboard Cite

show abstract

Temperature Conditions and Diagnostics of Bearings

Pastukhov¹,

Timashov²,

Stanojević³

2023

Applied Engineering Letters

View full text Add to dashboard Cite

The purpose of this work is to prove the effectiveness of a practical study of the temperature regime for diagnosing bearing assemblies of mechanical transmissions. Using the example of a two-row roller bearing of the rear support of the intermediate shaft of the vehicle transmission, the temperature in the friction zone under different transmission operating modes on a KAMAZ-5320 was calculated. Finite element analysis of temperature fields made it possible to determine the relationship between the temperature on the outer surface of the bearing assembly and the temperature in the friction zone through the coefficient k=0.327. The zone for temperature measurement -the bearing cover is determined and the maximum temperature of its heating is set. Thermal imaging observations confirmed the effectiveness of the developed method of technical diagnostics of bearings.

show abstract

Diagnostics of Transmission Bearing Units Based on Thermal Load Study

Pastukhov

Timashov

2023

S-h. maš. tehnol.

View full text Add to dashboard Cite

Abstract. The operating temperature of the transmission unit is noted to affect its reliability and can serve as a diagnostic criterion. It is proposed to diagnose the transmission unit technical condition by the temperature in the friction zone in order to take into account the influence of air temperature, solar radiation heating and adjacent heat-producing objects. (Research purpose) To ensure the bearing unit controllability based on the thermal load study. (Materials and methods) The study uses the results of calculating the nominal and operational load of the rear power take-off shaft of the Belarus-82.1 tractor. The study uses the three-dimensional modeling and finite element analysis of the temperature distribution under steady-state thermal conductivity conditions. To establish the functional relationship between the temperature in the friction zone and the diagnostic temperature, the method of finite element analysis is used under steady-state thermal conductivity conditions. (Results and discussion) The maximum load modes and temperatures in the friction zone were determined for the 60310A bearing of the power take-off shaft gearbox during aggregation with different agricultural machines such as 4300 Newtons and 2.4 degrees Celsius for FS-2.0U garden cutter (540 revolutions per minute); 4126 Newtons and 40.7 degrees Celsius for Rovatti T3K80/90/2 (540 revolutions per minute) irrigation pump; 956 Newtons and 13.0 degrees Celsius for ROU-6 (1000) manure spreader; 2615 Newtons and 36.6 degrees Celsius for KPRN-3.0A (1000) mower-conditioner. The maximum temperatures as a diagnostic criterion are established in the friction zone, which equal to 41.7 degrees Celsius at 540 revolutions per minute engine speed and 31 degrees Celsius at 1000 revolutions per minute. (Conclusions) Since the direct measurement of the temperature in the friction zone is hardly possible without changing the bearings design, it is proposed to measure the diagnostic temperature on the unit used for mounting the temperature sensor. The coefficient of proportionality k=0.53 of the finite element model is determined. In order to implement diagnostics in an automatic mode, an algorithm is developed for a digital transmission malfunction recorder. Its design is based on the ATmega328 programmable microcontroller and TMP36 temperature sensors. It is found that the digital transmission malfunction recorder provides automatic control of up to seven different transmission units simultaneously, taking into account the ambient temperature.

show abstract

Preliminary research to determine the thermal condition of the belt conveyor’s drive unit in an underground hard coal mine

Cited by 4 publications

References 7 publications

The essence of thermovision research in the prevention of fires in underground workings

The essence of thermovision research in the prevention of fires in underground workings

Temperature Conditions and Diagnostics of Bearings

Diagnostics of Transmission Bearing Units Based on Thermal Load Study

Contact Info

Product

Resources

About