Recently，China Railway Equipment GroupComplete set of long-distance intelligent shotcrete equipment for coal mineSuccessful application in a coal mine in Shandong，Remarkable results have been achieved.，It provides strong support for coal mine construction and high-quality development.。

China Railway Equipment has accumulated rich experience in the field of primary support equipment for tunnel construction.，Difficult problems of concrete spraying in coal mine roadway，Successfully developed the first domestic set with independent intellectual property rightsCoal mine long-distance intelligent shotcrete robot。The equipment organically combines concrete preparation with concrete wet spraying.，And realize that transportation of concrete materials.、Storage、Measurement、Loading、Stir、Conveying、 Spray 、Monitoring and other functions in one.，Realize multi-process automatic operation and intelligent control，Ffectively solve that problem of long time of coal mine roadway injection proces、Low efficiency of hand-held spray gun、The labor intensity is high、Poor operating environment and the like.。

In practical application，The device has demonstrated excellent performance，The maximum concrete preparation efficiency of the equipment can reach 15m³/h，Maximum pumping distance 1000m，Maximum pumping pressure up to 20MPa，Compared with the traditional process, the concrete wet spraying efficiency is improved by 2-3 times，Concrete preparation、Only 4 for wet spray process-5 people can complete it，Greatly promoted“Mechanized replacement、Automation reduces personnel、Intelligent unmanned”Development of construction。At the same time，The equipment can realize the continuous preparation and spraying of concrete.，Shotcrete manipulator automatically matches concrete preparation efficiency，Fficient connection of each gunite proces，So that that spray construction efficiency is obviously improved。

In order to meet the diverse needs of the actual construction，The device is provided with a plurality of groups of three-way valves in a conveying pipeline system.、Safety Valve、Pressure sensors, etc.，It is convenient to monitor the pumping state of concrete in time.，It is convenient for construction personnel to clean pipeline and check the problem of pipe blockage.，The safety and reliability of the construction are further improved.。

At present，The equipment has completed nearly 300 meters of roadway spraying operation.，Ffectively ensure that efficiency and the construction quality of the concrete wet spraying of the coal mine roadway。Future，Coal mine long-distance intelligent shotcrete equipment relies on its integrated design concept and intelligent control strategy.，The equipment is widely used in various construction scenarios of concrete spraying.，In order to achieve mine production safety、Intensive、Efficient、Green mining is more active.、An effective contribution。