1. Introduction The kitchen waste solid liquid separator uses kitchen/fruit and vegetable organic waste as raw materials, through the dual shaft Roller shredding, squeezing dehydration, oil-water separation and other comprehensive treatment technologies for rapid decomposition. After setting the parameters It can run automatically without manual operation. It can achieve rapid waste reduction, and the sewage can be discharged after subsequent treatment It is used as raw material for biomass fuel after recycling. 2.Working principle 2.1. After the kitchen waste enters the equipment, it is firstly evenly crushed by a two-axis roller shredder, and the particle size after shredding at 10-20mm, the teeth of the shredder are made of high-strength alloy, and the size of the shredded kitchen waste is uniform and small tableware, bones and other hard objects that are not fully quantified are broken at the same time to avoid malfunctions during the operation of the equipment. 2.2The follow-up dehydration of slag with small particle size is more complete, the amount of reduction is more, the oil extraction rate is high, and the overall operation efficiency of the equipment is high. 3.After being shredded, the slag automatically enters the screw press dehydrator. The dehydration process of the screw press dehydrator is divided into two stages. In the first stage, the spiral auger is used for dehydration. The spiral auger is divided into three sections: transmission section, compression section and discharge section. 3. The extruded liquid of the squeeze dehydrator is transferred to the oil-water separator through the diaphragm pump, using the kinetic energy of the water flow to connect continued collision, the grease from small to large, thereby accelerating the movement, so that the oil and water of different proportions can be shunted and layered, which helps after the oil and water are separated by the density difference, it enters the next stage. The waste water makes turbulent movement under the siphon effect along the spoiler. After flowing from the overflow weir into the collection tank and discharged through the drainage port, the oil beads in the water gather and flow upward, floating in the oil-water separator.