Abstract: Disclosed are a spherical titanium silicalite catalyst and a preparation method therefor. The spherical titanium silicalite catalyst has the following composition: xTiO2·(1?x)SiO2/yMPO4, wherein x is equal to 0.0005-0.04, y is equal to 0.005-0.20, M is a metal element selected from alkaline earth metals, transition metals or combinations of two or more thereof. The spherical titanium silicalite catalyst is prepared by the following method: (i) providing titanium silicalite raw powder with the composition of xTiO2·(1?x)SiO2, wherein x is equal to 0.0005-0.04, and y is equal to 0.005-0.20; (ii) mixing silica sol, an organic template agent and phosphate in proportion to obtain an adhesive; and (iii) mixing the adhesive with the titanium silicalite raw powder, and carrying out spray-drying molding and firing to obtain the titanium silicalite catalyst.

Abstract: The invention discloses a building block type quick-mounting power distribution device and a mounting method thereof. The device comprises a mounting assembly module; and an incoming line switching module for receiving and switching power signals, a switch measurement and control module for monitoring the received power signals and a feed-out end assembly module for outputting the power signals monitored by the switch measurement and control module to loads, which are all mounted on the mounting assembly module, respectively. While realizing power distribution function for loads, the power distribution devices may be stacked according to configuration requirements one upon one like building blocks during the screen assembling and mounting, so the assembling of a combined screen is simple and convenient, and easy to realize. Furthermore, since a single module occupies a small space, the capacity of a single screen is high.

Abstract: The invention discloses a building block type quick-mounting power distribution device and a mounting method thereof. The device comprises a mounting assembly module; and an incoming line switching module for receiving and switching power signals, a switch measurement and control module for monitoring the received power signals and a feed-out end assembly module for outputting the power signals monitored by the switch measurement and control module to loads, which are all mounted on the mounting assembly module, respectively. While realizing power distribution function for loads, the power distribution devices may be stacked according to configuration requirements one upon one like building blocks during the screen assembling and mounting, so the assembling of a combined screen is simple and convenient, and easy to realize. Furthermore, since a single module occupies a small space, the capacity of a single screen is high.