The best treatment method of organic fertilizer equipment factory for pig manure is fertilizer, in addition to dehydration process, the main process is granulation and molding, and the more popular method is extrusion. The extrusion structure of the press granulator is divided into two types: roller extrusion and wheel extrusion. The double roller press granulator is composed of a feeding device and two parallel and side-by-side rollers that do relative rotation. The axis line of one roller is fixed, and the other roller can be moved parallel, so that there is a small gap between the two rollers. Its dimensions are adjusted by pushing rods of two or four hydraulic cylinders to drive the roller axis line and maintain a constant extrusion pressure. The pressure of the hydraulic cylinder can be adjusted by the hydraulic system. There are many forms of feed system and roll arrangement for roller extrusion pelletizer. Screw pusher can be vertical, can also be horizontal; Adjustable speed; The position of the hopper can be adjusted to keep it constant; The surface around the roll is spherical or corrugated to form a cavity. The powder is continuously and evenly added from the hopper to the top of the two rollers. Under the continuous rotation of the extrusion roller, the powder is bitten between the two rollers and extruded into the sheet. It then falls off under centrifugal action and the gravity of the plate itself until the shaping wheel with toothed claws is struck and separated into particles, which then enter the parting screen. The powder under the screen is sent back to the material, the particles on the screen are rolled through the roller, the acute Angle of the particles is ground, and the packaging is discharged from the discharge port on the screen. The moving side bearing of the roller is dominated by a spring, and the support moves parallel through the deformation of the spring.