Remote control, radio, camera... In our daily life, some e-waste is often generated, and used batteries are one of them. But do you know? For ordinary alkaline batteries, people usually think that they will be discarded after the power is insufficient. It is not known that the average remaining battery capacity of each alkaline battery can reach 400 mA. If they accumulate a lot, they can still play a big role.
1500 used batteries constitute a mobile phone charging station
Recently, Thailand's beverage company Vitamilk has creatively built a free mobile phone charging station using waste alkaline batteries, not only for smartphone users to charge for free, but also intelligently conveys the concept of adding energy to their products.
In this mobile phone charging station consisting of used batteries, a total of 1500 batteries are included, and all the residual power is combined to fully charge up to 140 smart phones, providing a total of 830 hours of talk time. After Vitamilk placed it on the side of the road, it provided 3,328 hours of talk time for passers-by in two months. It was not only economical and environmentally friendly, but also solved the problem of low battery power for passers-by, and it also achieved good results. Product promotion effect.
Downhole motor is composed of five assemblies: by-pass valve, motor, anti-drop, cardan shaft and drive shaft.
Downhole motor is a kind of downhole dynamic drilling tool upon the power of drilling mud. Mud stream from the
outlet of mud pup flows through a by-pass valve into the motor. This stream produces pressure loss at both inlet and
outlet of the pump to push the rotor into ratating, and to transmit the torque and speed onto the bit. The downhole
motor property mainly depends upon its property parameters.
Drilling Motors,Drill Motor,Mud Motor Drilling,Downhole Drilling Motor
Weifang Shengde Petroleum Machinery Manufacturing Co., Ltd. , http://www.sdpetromachine.com