531results about How to "Less investment in equipment" patented technology

The invention relates to a method for producing asphalt blending oil by normal pressure distillation of catalytic slurry oil. The method comprises the steps of: adding a certain amount of additives, such as a steam partial pressure regulator and an oxidant and the like, into catalytic cracking slurry oil as a raw material, pumping the material into a heat exchanger by an oil pump for preheating; after the material is preheated, conveying the material into a heating furnace for heating to be 360-420 DEG C, and conveying the material into a distillation tower for separating; obtaining a mixture of top light oil and the steam partial pressure regulator at the top of the tower, and if the steam partial pressure regulator is not soluble in the light oil, standing and separating to obtain the light oil; distilling off wax oil from a middle outlet of the tower; obtaining high boiling point heavy oil, as the asphalt blending oil, containing small amounts of catalyst microparticles at the bottom of the tower; and if high boiling point heavy oil not containing powders is needed, removing residual microparticles by a high temperature filter to obtain cleaner high boiling point heavy oil.

An on-line thermal-insulating heat-treating quenching apparatus for high or ultra-high strength aluminum-alloy and its quenching process are disclosed. A rectangular stand is arranged in middle of catch pan, drum, graphite plate and under-frame form into guiding bench structure, electric heater is installed on its internal wall, catch pan is placed outside of guiding bench, spray pipe is arranged on both sides and cooling liquid is spurted from it. The process is carried out by discharging aluminum-alloy thermal extrusion product, entering it into thermal insulator, on-line adjusting temperature, keeping temperature, moving thermal insulator, on-line quenching, stretching and aligning. It's cheap and simple, has less consumption and shorter production period.