Google launches USB security key

Most security experts believe that you should use two-step verification to ensure the security of all your online accounts. When you access an online account, you need to have a physical project, usually a mobile phone, for secondary verification. This is an important additional security feature. After entering the password, enter the second password from your smartphone to verify your identity. After two-step verification is enabled, even if someone steals your current password by hacking, they cannot access your account unless they also steal your physical project.
Of course, there are always situations where you may not want to use secondary verification, which is why Google announced the release of security keys. It authenticates your Google account in two steps through a physical USB memory stick account. The company explained in its official blog: "The security key is authenticated after logging in to a real Google site, not a fake Google site. The user doesn't have to enter the code, just plug the security key into the computer's USB port and then Chrome Click it when prompted.” The security key requires a USB drive to work, so it is not compatible with most phones and tablets. The security key also requires that you use the Chrome web browser to complete the verification.

Powerful Double-Toothed Roll Crusher

The graded toothed roller crusher is powered by two electric motors, which are decelerated by a reducer and then drive two parallel mounted toothed rollers to rotate in opposite directions. When the material falls between the two rollers of the graded crusher, the material is first screened with spiral teeth or knife shaped teeth. Particles smaller than the discharge particle size directly pass through without crushing, and enter the discharge chute. Under the combined action of vertical stress or shear force, large pieces of material are split by the teeth of the toothed roller Shearing and stretching are broken and discharged from the discharge port.

Advantages of Powerful Double-Toothed Roll Crusher

1. The grading crusher crushes materials by shearing and stretching, resulting in uniform particle size of the product after crushing, with low levels of over particle size and overfilling.

2. The transmission device has a compact structure, flexible operation, low noise, and high safety.

3. Adopting a hydraulic coupling and a "utility model" safety coupling for dual overload protection, it is safe and reliable.

4. Adopting a "utility model" crusher tooth plate, the tooth plates are arranged in a spiral manner, with good wear resistance and long service life.

5. The body adopts a modular design, and the combination of various units is convenient and fast, making it easy to disassemble and transport underground and coal buildings.

6. The overall height is low, suitable for working environments with limited space.

7. According to user requirements, speed sensors and PLC programming can be installed to control the working status of monitoring equipment, achieving remote control.

8. Adopting an automatic oil supply system to extend the service life of bearings and reduce the intensity of daily maintenance work.

Powerful Double-Toothed Roll Crusher,Double Roller Crusher

SiChuan TieYing Machinery Manufacturing CO.,LTD; , https://www.tieyingcrushers.com