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矿山井下支护工程中,为了改善工人作业环境、降低粉尘浓度,支护作业采用湿式作业替代干式作业,同时作为支护设备的转子式混凝土喷射机也得到进一步更新。测定喷射机的各项性能指标及粉尘浓度,对工作效率的保证、粉尘浓度的控制有一定的参考价值。
In underground mine support projects, in order to improve the working environment of workers and reduce the concentration of dust, wet work is used instead of dry work in support work, and the rotor concrete jet ejector as a supporting device is also further updated. Determination of the performance of the jet machine performance indicators and dust concentration on the guarantee of work efficiency, dust concentration control has some reference value.