|
CN112282756A
|
|
Three-zone dividing method for supporting pressure of working face goaf under coal mine
|
|
CN112163257A
|
|
Method for quickly outputting grid-type time section lines of working surface
|
|
CN112211635A
|
|
Air-water-pressure air-water induced air-water curtain dust settling device of development machine
|
|
CN112177636A
|
|
Tunnel inverted arch lining using quadrangular pyramid reinforcing steel bar latticed shell
|
|
CN112209196A
|
|
Fault diagnosis and monitoring system of mine hoist
|
|
CN112255976A
|
|
Management system and management method for installation equipment of fully mechanized coal mining face
|
|
CN112193755A
|
|
Device and method for realizing multi-span belt sampling coal flow centralized aggregate conveying
|
|
CN112112677A
|
|
Combined casing tool for filling resin cartridge into broken top and using method thereof
|
|
CN112049679A
|
|
Drilling drainage device for water in old air space
|
|
CN112050892A
|
|
Chargeable water level measuring instrument based on singlechip
|
|
CN112049684A
|
|
Portable pressure regulating and measuring device for detecting and draining water under mine
|
|
CN112049683A
|
|
Drainage and desilting device for fully-mechanized mining roof sandstone fracture water
|
|
CN112050052A
|
|
Monitor for observing mine pressure parameters of stoping roadway under coal mine
|
|
CN112110666A
|
|
Device for improving performance of calcined coal gangue and using method thereof
|
|
CN112129580A
|
|
Sampling device and sampling method for underground water detection
|
|
CN111689255A
|
|
Accurate blanking device and blanking method
|
|
CN111747140A
|
|
Automatic fine charging system and charging method
|
|
CN111963174A
|
|
Process for repairing coal chute hole by open caisson method
|
|
CN111776786A
|
|
Train loading carriage accurate positioning device and positioning method
|
|
CN111846761A
|
|
Cave-connecting belt conveyor continuous waste rock discharge device for construction of large-curvature-radius curved roadway
|
