Oil and gas drilling for purification Horizontal Screw Centrifuge (referred Decanters), for the integration of the body frame design, site installation and hoisting facilities; the horizontal spiral unloading settlement centrifuge uses a special proof, corrosion, weathering, vibration treatment, converters and other electrical components mounted on a dedicated proof cabinets, explosion-proof cabinet is provided with heating and ventilation systems, suitable for field work. Auger driven by special planetary gear reducer drive, mechanical and electrical double overload protection device, it can realize low speed high torque power transmission, smooth start.