2. The coal roadway heading face starts from the heading face of the excavation face, and a set of pressure self-rescue devices are set at a distance of 25-40m from the head. The number of the self-rescue devices should be 2 more than the number of workers in the area, and then a set of pressure is set every 50m. Self-rescue devices, the number of each group is 5-8 (the installation diagram is shown in Figure 1); the rock roadway working face is installed 100-130m from the head to install a group of self-rescue devices, the number of which should be 2 more than the number of staff in the area. A set of pressure self-rescue devices are installed at every 100m head-to-head and at the evacuation site, and the number of each group is 5-8.

3. The return airway of the working face shall be provided with a self-rescue device within 25-40m away from the safety exit on the return airway of the mining face. The number of the self-rescue device shall be 2 more than the number of staff in the area. Install a group of self-rescue devices for pressure air, the number of which is 5-8; the air inlet lane is set within a range of 50-100m away from the safety exit below the mining face, and the number of self-rescue devices should be more than the number of staff in the area. 2 sets; a set of pressure self-rescue devices are set in the warning position of the returning damper outside the damper of the working face, and the number is 5-8.

4, a solid line to the laying flat, hanging fixed air pressure line once every 3m, rock roadway segment managed using metal clamp fixed fitting, using coal roadway segment hanging rope. The branch pipe of the pressure self-rescue system is not fixed at one place, and the valve wrench of the pressure self-rescue system should be in the same direction and parallel to the roadway.

5. Install the water collecting device in the main air supply line. At the point where the gas supply line enters the self-rescue system, a switch is added, followed by a steam separator.

6, the air compressor should be set on the ground, its gas supply should be able to ensure the use of underground personnel, and can be started within 10min; deep multi-level mining of the mine, air compressor installed on the ground is difficult to ensure effective supply of wind to the underground operating point It can be installed in a safe and reliable position at the bottom of the intake shaft of the two levels above the air supply level, but the vane air compressor must not be used.

7. The pressure self-rescue system valve should be installed completely to ensure the normal use of the system. The main valve should be provided on the inlet side of the entrance to the mining face.

Titanium alloy is mainly used to make aircraft engine compressor parts, followed by rocket, missile and high-speed aircraft structural parts.By the mid-1960s, titanium and its alloys had been used in general industry to make electrodes for the electrolytic industry, condensers for power stations, heaters for oil refining and desalination of seawater, and environmental pollution control devices.Titanium and its alloys have become corrosion resistant structural materials.It is also used to produce hydrogen storage materials and shape memory alloys.

In addition to, we also provide high precision machining and precision machined parts,supply custom machining services and CNC machining services for small batch.

Titanium Cnc Milling Machining

Titanium CNC Milling Machining

YaoPeng Metal Products Co., Ltd. , https://www.ypmfg.com