Multistage Single Screw Continuous Steam Explosion Device for Plant Fiber

Abstract

The invention discloses a multi-stage single-screw continuous steam explosion device for plant fibers, which is specially designed for processing plant fibers, and aims to provide a multi-stage continuous plant fiber steam explosion device with convenient disassembly and segmental temperature control . Its structure is composed of multi-section frame, multi-section barrel, multi-section screw, feeding device, motor, temperature control device and other components. The feeding device is installed on the platform above the machine body to feed evenly and continuously. The design of multi-section frame, multi-section barrel and multi-section screw structure makes it possible to adjust the combined equipment according to the specific conditions of the material. Each section of the blasting device can independently control the temperature and the water content of the material. rate and other parameters to achieve segmental control. The barrel adopts a structural design consisting of upper and lower parts, which is convenient for installation and disassembly, screw replacement, cleaning and maintenance. Compared with the existing technology, the steam explosion device has adjustable series, section control, easy maintenance, low energy consumption, high production capacity, good treatment effect, wide adaptability to materials, low labor intensity, and easy realization of automatic control, etc. features.

Description

technical field [0001] The invention relates to a steam explosion device in the pretreatment process of biomass raw materials, in particular to a continuous steam explosion device for plant fibers. Background technique [0002] With the increasing shortage of resources and energy, people pay more and more attention to the development and transformation of biomass resources. At present, biomass is mainly used for paper pulping, alcohol production by fermentation, wood-based panels, fiberboards and wood-plastic composite materials, etc. However, the pretreatment technology of plant fibers is the key to realize the resource utilization of plant fibers. At present, the pretreatment technologies for plant fibers mainly include physical pretreatment, chemical pretreatment and other technologies. In recent years, a new physical-chemical pretreatment technology—steam explosion technology is attracting the attention of researchers for its advantages of high efficiency, no pollution,...

AI Technical Summary

Problems solved by technology

[0004] For different plant fiber raw materials, they require different steam explosion conditions, especially for woody plants, which have a high degree of lignification and a denser structure. One-time treatment cannot achieve the desired effect, and multiple times of single machine or series production of multiple equipment is required. Intermittent production leads to large production loss, high energy loss, low efficiency, high energy consumption, low production capacity, difficult control of process parameters, high labor intensity, low degree of automation, and high cost

Some plant fibers need to add modifiers during the treatment process, but the modifiers and plant fiber materials are not uniformly dispersed and cannot infiltrate into the material particles, resulting in poor reaction effects, and the types, contents and levels of modifiers in different stages The conditions required for the reaction may be different, and the temperature and pressure of the blasting process need to be adjusted

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