Discharging device for pressurized vessel and steam cooking system

Abstract

The invention relates to the field of pretreatment of fibrous biomass materials and discloses a discharging device for a pressurized vessel and a steam cooking system. The discharging device comprisesa steam-explosion feeding buffering bin, a charging opening is formed in the upper end of the steam-explosion feeding buffering bin, a discharging opening is formed in the lower end of the steam-explosion feeding buffering bin, and the charging opening of the steam-explosion feeding buffering bin communicates with a discharging opening of the pressurized vessel so as to buffer and store discharges of the pressurized vessel; and a dilute-phase zone, a dense-phase zone and a discharging zone are defined in the steam-explosion feeding buffering bin from top to bottom, wherein a first steam distributing pipe is arranged in the discharging zone, is arranged close to the dense-phase zone and can distribute steam to the dense-phase zone so as to loosen materials of the dense-phase zone, and / or asecond steam distributing pipe is arranged in the discharging zone, can distribute steam to the discharging opening of the steam-explosion feeding buffering bin so as to facilitate discharging of materials.

Description

technical field [0001] The invention relates to the field of pretreatment of fiber-containing biomass materials, in particular to a discharge device for a pressure vessel and a steam cooking system containing the discharge device. Background technique [0002] The continuous growth of energy demand for the development of the world economy and the increasingly severe environmental problems force people to seek renewable energy. Biomass, as the only renewable resource that can be converted into liquid fuel, is receiving increasing attention. Among the technologies for producing liquid fuels from biomass, the technology of producing fuel ethanol from biomass has attracted much attention. The production of existing industrialized fuel ethanol all uses sugar or grain as raw material, but because the output is limited by the raw material, it is difficult to meet the energy demand for a long time. Therefore, in the long run, the production of fuel ethanol from cellulose-containing...

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Problems solved by technology

[0004] However, in the above, when the discharge valve is opened, a large amount of steam will enter the cyclone separator in the next process through the discharge valve and will be lost from the top of the cyclone separator, and the pressure in the digester will drop instantly, which needs to be replenished. Enter steam to maintain the pressure required for cooking, resulting in greatly reduced cooking efficiency and waste of energy

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