Continuous operation steam explosion unit

The invention discloses a continuous operation steam explosion unit. The invention is used for solving the problems that when steam explosion is conducted on low density and loose materials such as straws, the operation efficiency is low. The continuous operation steam explosion unit is provided, the production rate is improved, the processing difficulty of the light specific gravity raw materialsis solved, under the steam pressure of 2 MPa-3 MPa, the specific gravity of the material is 300 kg/m3 after the material is compressed, pressure maintaining is conducted for 60-90 seconds, instant steam explosion of the straws such as corn, wheat and rice is conducted, and industrial production is realized. The continuous operation steam explosion unit is mainly composed of a feeding distributor,a material conveying pipeline and two or more continuous operation steam explosion machine units, a feeding compression piston moves reciprocally in a feeding steam explosion cylinder, the materialsare compressed and pushed into the steam explosion cylinder, so that continuous feeding and compression are realized; and when the steam explosion machine units are in a pressure maintaining and steamexplosion process, the feeding distributor feeds the next steam explosion machine unit, when the previous steam explosion unit finishes the steam explosion operation and enters feeding operation again, the feeding distributor feeds the steam explosion machine unit again, the whole continuous operation steam explosion unit is fast in operation and high in efficiency.