Improved adaptation of the single-row mechanized support system to loading conditions

Клишин, В. И.; Matviets, Yu. V.

doi:10.1007/bf00733461

Cited by 5 publications

(9 citation statements)

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“…The movement of the support is carried out with a support without the formation of gaps between the roof and soil: a section of hydrofected support with a telescopic overlap (Fig. 3) [12].…”

Section: Resultsmentioning

confidence: 99%

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Development of the properties of adaptability of the support sections of treatment complexes to variable mining and geological conditions

Teremetskaya

Gabov

2021

E3S Web Conf.

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In modern conditions, intensive underground coal mining is provided, as a rule by working out the dredging sections of coal seams with long cleaning faces using high-performance mechanized complexes. They consist of a dredging machine, a conveyor and a set of sections of mobile mechanized support (SMS). SMS, supporting the roof, controlling the mountain pressure (MP) and protecting the bottom-hole space, provide conditions in complex mechanized treatment faces (CMTF) for efficient and safe coal mining. However, the potential capabilities of modern complexes significantly exceed the values of efficiency indicators achieved when using them in operating conditions. One of the reasons for this situation is the insufficient adaptability of the SMS to the mining and geological conditions (MGC) changing in a wide range as the excavation sites are worked out. Therefore, at present, studies of the possibility of developing the properties of adaptivity (kinematic, power, contact, technological) of the SMS to the MGC variables are relevant. Their results will contribute to the expansion of the functional capabilities of the SMS to maintain favorable conditions in complex mechanized treatment faces for the effective operation of the mechanized treatment complex (MTC) in variable mining and geological conditions.

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Section: Resultsmentioning

confidence: 99%

“…However, the potential capabilities of modern complexes significantly exceed the achieved efficiency indicators of their use in operating conditions. The degree of achievement of these efficiency indicators is very significant for coal mining enterprises [12].…”

Section: Introductionmentioning

confidence: 99%

Development of the properties of adaptability of the support sections of treatment complexes to variable mining and geological conditions

Teremetskaya

Gabov

2021

E3S Web Conf.

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“…New requirements for MLFC have naturally occurred, in particular, it has become essential to provide them with adaptability to changing mining-geological conditions [23,24]. In this context, the power support [25][26][27] as the main functional equipment of the fullymechanized longwall (FML), which provides the necessary conditions for the intensive and safe operation of the working complex in the process of coal mining, plays an essential role in MLFC general adaptation to operating conditions.…”

Section: Introductionmentioning

confidence: 99%

“…• insufficient kinematic and contact adaptability of PSU to MGC that change as blocks are mined [25,26], results in uncontrolled support unit loads and stresses of roof rock in contact with the unit laps.…”

Section: Introductionmentioning

confidence: 99%

Nonimpact rock pressure regulation with energy recovery into the hydraulic system of the longwall powered support

Gabov¹,

Задков²,

Babyr³

et al. 2021

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“…The main elements of the powered support that directly receive rock pressure and provide reliable and safe conditions for work and mechanisms in the production face, are hydraulic props, the level of tightness of which determines the operation of the system as a whole [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Factors Determining Operation of Lip Seal in the Sealed Gap of the Hydraulic Props of Powered Supports

Buyalich

Byakov²,

Buyalich

2018

E3S Web Conf.

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The article considers the factors that directly influence the operation of the lip seals to seal the gap between the piston and the working cylinder in hydraulic props of mechanized supports, this directly affects the tightness of the props and, as a consequence, the safety of work in the production face. A description is given of these factors, which is supported by practical calculations obtained from the results of finite element modeling of lip seals of various designs at different pressures of the working fluid and sealed gaps. The problems of sealing rough surfaces with rubber-like materials are considered. The classification of these factors according to the degree of generalization and the functional interaction between each other is proposed.

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Improved adaptation of the single-row mechanized support system to loading conditions

Cited by 5 publications

References 0 publications

Development of the properties of adaptability of the support sections of treatment complexes to variable mining and geological conditions

Development of the properties of adaptability of the support sections of treatment complexes to variable mining and geological conditions

Nonimpact rock pressure regulation with energy recovery into the hydraulic system of the longwall powered support

Factors Determining Operation of Lip Seal in the Sealed Gap of the Hydraulic Props of Powered Supports

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