3 results about "Static mixer" patented technology

The invention discloses a method for removing low-boiling-point substance in polyether. Polyether with low-boiling-point substance to be removed is added into a stirring kettle and then heated, the material is circulated to the stirring kettle through a circulation pump by passing through a static mixer and a packer tower, the polyether and nitrogen which is introduced into the bottom of the static mixer and the upper portion of the packer tower are sufficiently mixed, the low-boiling-point substance in the polyether is dispersed into the nitrogen, finally, the upper portion of the stirring kettle is vacuumized, the nitrogen is pumped out, and meanwhile the low-boiling-point substance is removed. The low-boiling-point substance removing efficiency is high.

The invention relates to a static mixer which is in a column shape. The static mixer comprises a plurality of flow division sections which are arranged axially. A plurality of flow channels penetrating through the flow division sections are formed in the flow division sections. The number of the flow channels in one flow division section is different from that of the flow channels in the adjacent flow division section. According to the static mixer, the number of the flow channels in one flow division section is different from that of the flow channels in the adjacent flow division section, and the flow channels of the adjacent flow division sections are staggered; the widths of the flow channels change, fluids are subjected to a series of cutting, stretching and folding when flowing through the different flow division sections, so that the fluids are fully mixed. According to the static mixer, the flow division sections are simple in structural design. The static mixer can adapt to mixing of viscous fluids and low-viscosity fluids, and is wide in application range. The invention further provides a mixing device.

The invention provides direct-spun polyester colored staple fiber production equipment and a direct-spun polyester colored staple fiber production method. The equipment comprises a melt pipeline, a double-screw extruder, a dynamic mixer, a static mixer, a metering pump and a spinning box body, wherein the melt pipeline and the double-screw extruder are respectively connected by the same metering pump; the dynamic mixer is simultaneously connected with the melt pipeline and the double-screw extruder; and the static mixer, the metering pump and the spinning box body are sequentially connected with the dynamic mixer. Synthesized polyester melt is quantificationally distributed into two parts through the metering pump; one part enters the melt pipeline, and the other part enters the double-screw extruder; meanwhile, pigment powder and additives of the pigment powder are continuously added into the double-screw extruder to be primarily mixed with the polyester melt; colored melt in the double-screw extruder is re-injected into the melt pipeline to be mixed with the original blank polyester melt through a pressurizing pump; the mixture enters the dynamic mixer; the melt and the pigment are uniformly mixed, and are then further mixed through the static mixer; and the uniformly mixed colored polyester melt enters the spinning box body. By using the dynamic mixer, the pigment in the colored melt is uniformly mixed, the quality of the colored fiber is improved; and the use period of an assembly is prolonged.