Volumetric lobe compressor for equipment collecting waste material

A volumetric compressor for material collection and/or treatment equipment, said volumetric compressor comprising:

• an operative chamber defining a longitudinal development axis,
• a main body which defines said chamber, said body defining a suction section and an exhaust section of a first fluid;
• a first header and a second header connected on opposite sides of said main body, said headers delimiting said chamber on opposite sides along said longitudinal axis;
• at least two rotors with lobes housed in said chamber and supported at opposite ends by said headers;
• each of said rotors rotating about a rotation axis substantially parallel to said longitudinal axis;
• a feeding device of a second fluid,
• wherein, for each of said rotors, said lobes have a “helical” development, and each of said two headers defines at least one injection opening communicating with said feeding device, each of said injection openings being configured to inject said second fluid coming from said feeding device into said chamber,
• wherein said at least one injection opening defined by said first header and said at least one injection opening defined by said second header have an angular position, determined with respect to the rotation axis of a corresponding rotor, reciprocally offset by an angle corresponding to a predetermined angle (β).