2results about How to "Reduce dirt" patented technology

The present application belongs to the technical field of slurry bed hydrogenation, and discloses a residual oil processing system and method. The system comprises a residual oil hydrogenation reaction device, an oil-gas separation unit, an atmospheric distillation unit, a vacuum distillation unit and a raw oil feeding pipeline. The present application has the technical characteristics of simple structure, improved economic benefits, reduced investment cost and device operation energy consumption, etc.

The embodiment of the present application provides a kind of image forming device, the phase registration method of photosensitive component, image forming device includes: first motor is configured to rotate first photosensitive component;Second motor is configured to rotate second photosensitive component;First phase sensor is configured to detect the first rotation phase of first photosensitive component;Second phase sensor is configured to detect the second rotation phase of second photosensitive component;Control unit is configured to after completing at least one page image forming operation, at least one motor in first motor and second motor receives phase registration instruction, according to the rotation phase of the photosensitive component corresponding to the motor of receiving phase registration instruction, the phase registration of first photosensitive component and second photosensitive component is carried out, wherein, phase registration instruction is used to indicate that first photosensitive component and second photosensitive component need to carry out phase registration, so that the output time of the first page or multi-page operation is not increased by executing phase registration, improve user experience.