2results about How to "Will not emit" patented technology

This invention relates to the field of vacuum material conveying technology and discloses a vacuum material conveying device for continuous caramel production, comprising: an inner tube, an outer tube installed on the outer wall of the inner tube, and a cavity in the middle of the inner and outer tubes; further comprising: multiple cooling plates, the multiple cooling plates being symmetrically and equidistantly attached to the outer wall of the inner tube; a pushing part and a driving part are installed inside the cavity, the driving part being used to drive the pushing part to operate; two through holes are symmetrically opened on the inner wall of the inner tube; and a sealed chamber one and a sealed chamber two are respectively installed on the inner wall of the outer tube at positions corresponding to the two through holes; by setting up the cooling plates, the pushing part, and the driving part in cooperation, automatic coagulation and peeling of caramel can be achieved, which can replace manual scraping and high-pressure water washing cleaning methods, cleaning thoroughly without residue, and will not scratch the inner wall of the inner tube, maintaining the smoothness of the tube wall, effectively avoiding the problem of subsequent caramel adhesion and blockage caused by tube wall damage.

The invention belongs to the technical field of polyurethane, and discloses a washable weather-resistant flame-retardant waterborne polyurethane finishing agent as well as a preparation method and application thereof. The preparation method comprises the following steps: adding functional additives (modified silicon carbide, a flame retardant, a free radical scavenger, epoxy resin and a chain extender) into a polyurethane prepolymer for reaction; then adding aliphatic diamine to carry out an end capping reaction, adding water to carry out phase inversion, and then adding a polyacrylate emulsion and a plasticizer to carry out emulsification. Through the synergistic interaction of the epoxy resin, the silane coupling agent modified silicon carbide and the polyacrylate, the flame-retardant waterborne polyurethane is endowed with excellent washing resistance.