Cleaning device and method of finished oil tank

Abstract

The invention discloses a cleaning device and method of a finished oil tank. The cleaning method comprises the following steps: a centrifugal machine and a cleaning pump supply high-pressure water to a cleaning robot, and the cleaning robot moves in a tank and sprays the high-pressure water at the bottom of the tank and on the wall of the tank, so that the storage tank is cleaned; the sewage generated during cleaning is reclaimed through a sewage sucking pump; after the sewage is primarily separated and filtered through three-phase separation equipment, cleaning water enters filtering equipment to be processed by secondary filtering; the filtered water is supplied to the robot through the centrifugal machine and the cleaning pump so as to realize the circulation of a cleaning medium. According to the cleaning method disclosed by the invention, through the technology of secondary filtering and the technology of filter-residue separation, the oil tank can be washed clean without using a large amount of clean water, so that the energy-saving purpose and the environment-friendly purpose are realized. The cleaning device is provided with filter-residue separation equipment, the sludge and the suspended solids, coming out of the three-phase separation equipment and the filtering equipment, pass through the filter-residue separation equipment, so that the water medium enters cleaning circulation; therefore, the using amount of the clean water in circular cleaning is reduced, and the treatment expenses of sewage and sludge in a later period are lowered.

Description

technical field

[0001] The invention relates to a cleaning device and a cleaning method for comprehensive cleaning of a refined oil storage tank. Background technique

[0002] For a long time, the cleaning of large oil tanks has been a tedious and repetitive work. This work not only requires a long working cycle, but also consumes a lot of human resources. There are many problems such as relatively high labor costs and potential safety hazards when personnel are cleaned.

[0003] At present, there is no self-developed product oil tank cleaning system in China. The oil tank cleaning systems put into use are generally used for crude oil cleaning and imported from abroad in complete sets, which are expensive (each set of equipment is more than 10 million yuan), The system is huge (the system includes heating system, cleaning system, filtration system, nitrogen system, etc., each of which is skidded separately, and the transportation cost is expensive) and other problems. Con...

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