The present invention relates to a waste
grease collection box, a
collection system, a
grease changing
system and a waste
grease collection box cleaning method, which can reduce the gas content in the waste grease, reduce the volume of the waste grease collection container and facilitate the cleaning of the waste grease. The box comprises a box body, a grease inlet and outlet are provided on the box body, a cavity for accommodating the waste grease is provided in the box body, at least one
exhaust pipe is provided in the cavity, a plurality of small holes for exhausting and discharging the
base oil separated from the waste grease are provided on the
exhaust pipe, the
exhaust pipe is connected to the external
atmosphere through an exhaust channel provided on the box body, the exhaust
pipe is also connected to the cavity through small holes, an oil collecting chamber is provided on the exhaust channel to collect the
base oil flowing out of the exhaust
pipe, the oil collecting chamber is divided into an
air chamber and an oil chamber, the exhaust
pipe is connected to the
air chamber, and an air outlet is provided on the
air chamber for discharging the air in the oil collecting chamber, after the waste grease enters the cavity from the grease inlet, the air in the cavity and the
base oil in the
separated state are discharged into the exhaust pipe from the small holes, after the base oil and air are passed into the air chamber from the exhaust pipe, the base oil enters the oil chamber and the air is discharged from the air outlet.