Abstract: A powder rotary fluidization device and a method thereof are provided. The powder rotary fluidization device includes a support device, the support device is provided with an installing plate, the installing plate is provided with a power device and a fluidization device, and the power device is in transmission connection with the fluidization device. After a position of the fluidization device on the installing plate is adjusted through the support device, the power device is started to drive the fluidization device to rotate, and meanwhile gases are introduced into the fluidization device to process powder. and therefore the problem of poor processing effect on fine powder with high viscosity is solved through the rotatable fluidization device.

Abstract: A device suitable for forming spherical particle clusters from fine powder is a device through which spherical particle clusters having a controlled particle size and a controlled hardness can be prepared from the fine powder by using a rolling granulation principle without adding any solution or solid binder. In particular, the device includes the following components: a) a preforming device for preforming particle clusters formed from fine powder, so that the particle clusters have a certain strength and shape while conveying the particle clusters to a next step at a certain speed; b) a spheroidizing device for further strengthening the particle clusters formed by a) the preforming device, so that the particle clusters have a higher sphericity and hardness; and c) a grading device for sieving the particle clusters spheroidized by b) the spheroidizing device to obtain particle clusters of different particle size ranges.

Abstract: A powder rotary fluidization device and a method thereof are provided. The powder rotary fluidization device includes a support device, the support device is provided with an installing plate, the installing plate is provided with a power device and a fluidization device, and the power device is in transmission connection with the fluidization device. After a position of the fluidization device on the installing plate is adjusted through the support device, the power device is started to drive the fluidization device to rotate, and meanwhile gases are introduced into the fluidization device to process powder. and therefore the problem of poor processing effect on fine powder with high viscosity is solved through the rotatable fluidization device.

Abstract: A method of ring network protection is provided. A node in a ring network determines a section that suffers a fault and determines a timeslot of a service impacted by the fault on the node according to section ring formation information and service route information preconfigured on the node when trigger conditions of protection switching are fulfilled, and switches the service onto a protection channel that bypasses the section that suffers the fault, where: the section ring formation information lists the information about the sections included in a ring consecutively in a preset direction; and the information about the sections includes preassigned IDs of sections between adjacent nodes in the ring network; and the service route information lists the information about the trails that use the node as a source node and a sink node of the service in each specific timeslot. A network element device is also provided.