Numerically controlled continuous steam explosion machine

Abstract

The invention relates to a production device for steam explosion pretreatment of biomass, in particular to a pretreatment device for the industry of biomass utilization, and provides a numerically controlled continuous steam explosion machine, which can complete supersonic steam explosion in milliseconds (0.00875s) based on the principle of a sliding cover. Since the cross-sectional area of the steam explosion machine for gas discharging, i.e. the cross-sectional area of the sliding cover, is equal to the cross-sectional area of a high-pressure cylinder, the cross-sectional area of the steam explosion machine for gas discharging and the steam explosion treatment volume form a fixed ratio, the problem that the gas discharging time is prolonged along with increase in the treatment volume in the traditional hot blowing process can be solved, and the power and density of steam explosion can be increased by three orders of magnitude. Moreover, the 'rawness and maturity' of materials which are subjected to batch treatment can be kept identical, and a foundation is laid for the consistency of industrial biochemical treatment. Meanwhile, the machine has the function of feeding and discharging materials automatically and the continuous steam explosion production can be realized.

Description

technical field [0001] The invention relates to a production equipment for performing steam explosion pretreatment on biomass, which is the pretreatment equipment in the biomass utilization industry. Background technique [0002] The technical essence of Steam Explosion is to release the steam molecules that have penetrated into the plant tissue in a short period of time, and the purpose is to decompose the raw materials according to the purpose with less energy. The steam explosion machine is to suspend the raw materials and high-pressure steam in the container in the air space in the form of explosion in the range of milliseconds. This process not only utilizes the high-pressure potential energy of the steam, but more importantly, converts the internal energy of the steam into mechanical energy, realizing adiabatic expansion and doing work. Due to its short action time, high energy density and concentrated action position, the water vapor molecules penetrating into the ga...

AI Technical Summary

Problems solved by technology

The main problem of this mode is: because the venting section is much smaller than the volume of the pressure vessel, and the opening speed of the high-pressure valve is limited, the pressure release process of the high-pressure steam takes a long time, usually 3 to 10 seconds, which is difficult to reach the millisecond level, and cannot Realize steam adiabatic expansion to do work, reduce the energy density, and make the material decomposition degree not high

This kind of technological process does not fill explosive compressed gas energy in the way that the gas penetrates into the plant tissue, and makes it explode and release in a short time. Horizontally break the original cellulose macromolecular lattice

The result is a huge power consumption to compress the solid, but does not produce the desired effect of the pretreatment of the cellulosic material, and does not help much in the later enzymatic hydrolysis

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