544results about How to "Speed ​​up the cycle" patented technology

A process for controlling a slurry phase (co-) polymerisation process in the presence of a polymerisation catalyst, which comprises maintaining the density SPAN of the polymer powder particles (defined as the absolute value of the density difference in g / cm3 between the average density of the polymer particles exiting the reactor with particle size above D90 and the average density of the material with particle size below D10) below 0.005, preferably below 0.003, more preferably below 0.0026, most preferably below 0.0023.

The invention relates to a belt band conveyor such as a curved belt conveyor having an endless transport belt that is guided over deflection rollers. There is a guide element that projects beyond the belt plane wherein this guide element can be handled separately before it is attached to the transport belt. This guide element moves along as the transport belt moves, and on whose guide surfaces, which extend in the transport direction of the transport belt has running surfaces that are inclined relative to the belt plane roll off from rotating guide rollers as the transport belt moves. Thus, lateral forces that occur crosswise to the transport direction of the transport belt can be compensated. A plurality of separate guide shoes are attached to the transport belt, forming a guide strip for the guide rollers that extends in the transport direction, circulates, and is divided into multiple parts.

The invention provides an automated three-dimensional container. The container comprises front and back two rows of vertical arranged suspension cages and a chain hoisting mechanism which is connected with the suspension cages and is driven by a hoisting driving motor, wherein the suspension cages are flexibly connected with the chain hoisting mechanism by a hoisting connector; a geneva mechanism which can transform the continuous movement of the chain hoisting mechanism to the intermittent movement is arranged between the chain hoisting mechanism and the hoisting driving motor; an upper translation mechanism and a lower translation mechanism which are driven by a translation driving motor are arranged on the upper part and the lower part of the three-dimensional container; and a chain translation mechanism is flexibly connected with the suspension cage by a translation connecting component so as to translate the suspension cage when the suspension cage has a hoisting intermittent movement. The technical scheme of the invention is applied to manufacturing three-dimensional containers.

The invention provides a method for preparation of light olefins through catalytic conversion by an oxygen-containing compound. According to the method, an oxygen-containing compound raw material is introduced into an internal circulation gas-solid fluidized bed reactor from the bottom of the reactor and contacts with a cracking catalyst in a reaction zone, and the oxygen-containing compound and the catalyst move upward together and undergo alkylation and a cracking reaction; reacted oil gas and a coked catalyst undergo gas-solid separation in a gas-solid separation zone at the upper part of the reaction zone, and separated oil gas is subjected to further separation in a subsequent separating system; the separated coked catalyst is deposited in a steam stripping zone, steam stripping is carried out to remove oil gas adsorbed and carried by the catalyst, a part of the coked catalyst in the steam stripping zone enters into a catalyst descending zone, moves downward and enters into the bottom of the reaction zone for cyclic utilization through a gap at the bottom of the catalyst descending zone; and the other part of the coked catalyst is introduced into a catalyst regenerator for charring and regeneration through an inclined to-be-generated catalyst pipe, and a regenerated catalyst is returned to the internal circulation gas-solid fluidized bed reactor for cyclic utilization. The reactor provided by the invention can be used in the method for preparation of light olefins by using the oxygen-containing compound, and the advantages of simple operation and high yield of light olefins are obtained.