1）、After separated from garbage，the crude oil and soil is put into cleaning module level 1。 Covered by Aacket filled with polyurethane foam insulation layer，this level is a horizontal  strong stirring tank consisting of Including tops flotation Filters，built-in stirring wing，  skimmers，grating，liquid level controller，automatic temperature controller，stainless steel radiators，etc。（steam heating or oil heating）。 

2）、Level 1 put oil into the oil collector，and then the oil flow into oil tank。 

3）、Due to restrictions of sample tests and mobile working water and so on，level 2 and level 3 is appended based on fixed mode。

4）、Level 2 and level 3 is Vertical devices and has similar architecture to level 1。After processing by level 2 and level 3，oil is put back level 1，and collected by oil tank。 

5）、If still not cleaned，oil is re-circulating cleaned through put back into level 1 by making valve 1 close and valve 2 open。

6）、Dosing device is composed of a tank and metering pump With an electric heating rod in the bottom，tank has stirring function。In winter，the tank can be heated。The Metering pump is composed by a diaphragm pump and inverter。The inverter adjusts the speed of diaphragm pump，so reagent metering is controlled。

7）、Total power：25kw。