Sealing device for explosion outlet of steam explosion machine

Abstract

The invention relates to a matching sealing device for a steam explosion machine. The sealing device is an open dynamic sealing device which squeezes a sealing tape into a gap through a conical surface locking mode so as to realize sealing. Since the sealing tape is located at the lower part of a pressure-bearing bottom cover, destroy of exploded substances to the sealing tape can be avoided to a greatest extent. Through selection of a proper material for preparation of the sealing tape, the service life of the sealing tape can be more than 10 working days, so requirements of normal production are completely satisfied. Meanwhile, the sealing tape has low cost, is rapidly replaceable and can substantially reduce replacing cost for sealing parts of the steam explosion machine.

Description

technical field [0001] The invention relates to a sealing device matched with a steam explosion machine, which is an open dynamic sealing device. Background technique [0002] The steam explosion machine is a kind of equipment used for biomass pretreatment, with a rated working pressure of 2.5MPa and a working temperature of 220-230°C. The explosion outlet of the steam explosion machine is the core part of realizing the steam explosion function, and plays an important role in the realization of the supersonic detonation velocity and the conversion of thermal power, but the requirements for the sealing device of the explosion outlet are relatively special. First of all, the objects processed by the steam explosion machine include crop straw, energy crops, organic waste, etc. These materials are of various types, mostly accompanied by impurities such as gravel and metal, and even some construction waste such as ceramic tiles, sharp parts, etc. will also be mixed in into organ...

AI Technical Summary

Problems solved by technology

This phenomenon will also have a strong destructive effect on the sealing device of the explosion port.

The third is the fast production pace of the steam explosion machine (average 10-15 times per hour), and the continuous working time is long (more than 15 hours per working day)

The fourth is that the cost of consumables in the sealing device should not be too high, otherwise it cannot be used to process low-value biomass raw materials

In addition, the production environment for processing biomass raw materials is relatively harsh, with a lot of dust, so that the hard sealing methods that generally rely on clean sealing surfaces cannot work normally.

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