Zobrazeno 1 - 10
of 187
pro vyhledávání: '"fully mechanized mining face"'
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 11, Pp 174-185 (2024)
Straightness control of fully mechanized mining face is one of the key technologies to realize intelligent mining, and the position control performance of the hydraulic support push cylinder directly affects the straightness level of the mining face,
Externí odkaz:
https://doaj.org/article/0cb2db482e554b9995441358fd12cb18
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 10, Pp 160-167 (2024)
The effectiveness of air curtain dust control is influenced by various factors, including suction ventilation and radial airflow distribution. Existing research is largely limited to the effects of single factors on air curtain dust control. To under
Externí odkaz:
https://doaj.org/article/0b2662f125874d80b0ddc1c4befee85b
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 9, Pp 98-107 (2024)
Research on coal flow characteristics based on sensors is limited by the restricted monitoring range of sensors, making it impossible to study the coal flow characteristics of the entire scraper conveyor. Additionally, research on coal flow character
Externí odkaz:
https://doaj.org/article/f2c6f4ce52f0486f9b1de268d3b2eeee
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 9, Pp 238-247 (2024)
To solve the problem of rapid following and advancing speed of support in the fully mechanized mining face, a distributed liquid supply system based on accumulators was proposed and tested in the S1204 working face in Ningtiaota Coal Mine. The speed
Externí odkaz:
https://doaj.org/article/6decdf352db64c5ca04ede5a04c8ac65
Publikováno v:
Meikuang Anquan, Vol 55, Iss 7, Pp 59-67 (2024)
In order to improve the problem of serious dust pollution in the fully-mechanized mining face, a new air distribution dust control method with air separator installed was proposed for the fully-mechanized mining face of Daliuta Coal Mine in Yulin, Sh
Externí odkaz:
https://doaj.org/article/c71f54c9cf6140ab83361b374b0f443c
Publikováno v:
Meikuang Anquan, Vol 55, Iss 6, Pp 217-222 (2024)
In order to further improve the safety of coal mine comprehensive mining operations, a set of coal mine comprehensive mining personnel positioning and hydraulic support system control system is proposed with intelligent technology as the starting poi
Externí odkaz:
https://doaj.org/article/4c18215d76de4ef6b0d38f95d66a1597
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 1, Pp 80-87 (2024)
In response to the dust control problem in excavation roadways, the traditional long pressure short suction ventilation dust reduction technology has problems such as large dust diffusion areas and easy blockage of jet holes in the air curtain dust r
Externí odkaz:
https://doaj.org/article/e138365dd3e7406a86d811df46a65ccb
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 1, Pp 147-154 (2024)
The goaf roadways have problems of high surrounding rock stress and large deformation under the conditions of hard roof and wide coal pillars in thick coal seams. In order to solve the above problems, this paper takes the 16403 fully mechanized minin
Externí odkaz:
https://doaj.org/article/173b54adc8d74dfdad7122973c38d845
Publikováno v:
Applied Sciences, Vol 14, Iss 19, p 9100 (2024)
With the increase of mining height at the working face, the influence range of roof fractures in the goaf increases, the advanced supporting pressure on the coal wall increases, ground pressure becomes more intense, and roof support becomes more diff
Externí odkaz:
https://doaj.org/article/c9937438ce824a589d0fa65cf826fd33
Publikováno v:
Gong-kuang zidonghua, Vol 49, Iss 12, Pp 47-55 (2023)
Currently, research on the collaborative control of shearers and scraper conveyors has preliminarily established a collaborative control mechanism for mining and transportation systems. But none of them have taken into account the uncertainty and cou
Externí odkaz:
https://doaj.org/article/2b03fef8f0f2499890d27ccfe9d72a78