The correct use of the pump

1, start

(a) Determine the motor rotation direction is correct before the pump connection, whether the rotation of the pump is flexible (or check the motor rotation after the pump is filled with water, and it is forbidden to do no water idling in the pump)

(b) Close the gate valve on the discharge line.

(c) Fill the pump with water or use a vacuum pump.

(d) Turn on the power, when the pump reaches normal speed, and then gradually open the discharge valve on the pipeline, and adjust to the required conditions. In the discharge tube gate valve closed case, the pump can not work more than 3 minutes.

2, stop

(a) Gradually close the gate valve on the discharge line to cut off the power.

(b) If the ambient temperature is below 0 ℃, the pump water should be released to prevent cracking.

(c) If it is to be stopped for a long time, the pump should be disassembled, cleaned and oiled, and should be stored in a package.

3, running

(a) Care should be taken to observe the meter readings, temperature rise of bearings, dripping and temperature rise of packing, vibration and noise of pumps during normal operation and driving. If any abnormalities are found, they should be disposed promptly.

(b) Bearing temperature and ambient temperature difference of not more than 40 ℃, bearing temperature up to not exceed 80 ℃

(c) Filler leakage should be a small amount of uniform.

(d) Bearing oil level should be maintained in the normal position, can not be too high or too low, low oil should be replenished promptly.

(e) If the sealing ring and the impeller with excessive wear and tear parts of the gap should be replaced with a new seal (new pump diameter clearance of about 0.15 ~ 0.25mm)

(f) The pump should be operated near the performance points (flow, lift, etc.) specified on the nameplate so that the pump can work long-term in a high-efficiency area to achieve maximum energy savings.

Top Drive Drilling Rig

Main feature of anchor mining drilling machine:
1, The anchor drill rig with full hydraulic control, Operation is convenient and flexible, easy shifting, good maneuverability, saving time and labor.
2, Drill rotary machine driven by a double hydraulic motor, High output torque, rotary center lower than similar products, greatly improving the rig drilling rig stability.
3, New variable angle mechanism to make the hole more convenient, adjustment range is larger, can reduce the requirements of the working surface.
4, For the customer's local special conditions, the cooling system is optimized to ensure that the hydraulic system when the outdoor temperature is 45 ° C, the maximum temperature does not exceed 70 ° C.
5, Match dedicated simultaneous casing drill tools (drill pipe, casing, eccentric bit, etc.), in the unstable formation with casing wall openings, the conventional button bit use for end-hole . High drilling efficiency , and good quality.
6, Machine is mainly suitable for deep foundation pit anchor support, but also through the rotary spray module replacement, so machine can be rotary jet spray construction.

7,The mining drilling machine can meet three-wing drill drilling, DTH hammer drilling, casing drilling, drill pipe / casing complex drilling, single / double/ triple rotary spray, fixed spray, swing spray and so on .