2results about How to "Reduce washing" patented technology

A kind of paper pulp mechanical pressurization preparation system, the system includes pulper, cooking device, washing device, screening device, bleaching device, concentration device, pulper, cooking device, pulp filter press, washing device, screening device, bleaching device and concentration device are sequentially connected installation, washing device is made of three to five stage washing machine, wherein still including pulp filter press;Pulp filter press is connected and installed at the rear end of cooking device or the front end of any stage washing machine in the first three stages of washing device.The system of the utility model improves the pulp yield of paper pulp pulping, wood raw material conversion rate, environmental protection and the quality and value of paper pulp.

The utility model discloses a kind of oil furnace method soft carbon black production reactors, including reactor cavity, multiple raw material oil oil gun spray system being arranged at the oil inlet end of reactor cavity and the pressure regulating pipeline of another end;Tangential air pipe is provided on the lateral wall outside reactor cavity;Oil gun spray system includes the feed panel of multiple raw material oil guns being arranged, and raw material oil gun is equipped with axial combustion air sheath on the side of sleeve;Raw material oil is sprayed into reactor cavity by raw material oil gun;Axial combustion air enters reactor cavity from axial combustion air sheath place;Tangential wind enters reactor cavity from tangential air pipe place;Powdered carbon black generated inside reactor cavity is discharged after rising to pressure regulating pipeline with carbon black flue gas.The raw material oil gun of axial combustion air sheath is developed, and then large-size reactor is used again, and multiple raw material oil gun system and the design of tangential / axial wind are matched, more flexible and adjustable perfect spray are provided, the problem of screen residue after coking is solved, and primary particle is made larger.