Steam blasting machine

Abstract

The invention discloses a steam blasting machine which comprises a sliding sealing disc, a movable upper limiting shaft, a lower sealing disc, an upper sealing ring, a lower sealing ring, a cylinder A for controlling the sliding sealing disc to move upwards and a cylinder B for controlling the sliding sealing disc to move downwards, wherein the sliding sealing disc is I-shaped; the lower part of the sliding sealing disc is in a conical disc structure having a high middle part and a low peripheral part; the lower end of the upper limiting shaft is matched with the upper end of the sliding sealing disc in a sealing manner through the upper sealing ring so as to form an integrated structure; the lower end of the sliding sealing disc is matched with the lower sealing disc in the sealing manner through the lower sealing ring so as to form another integrated structure; the sliding sealing disc is sealed in a sliding manner through the upper sealing ring and the lower sealing ring which slide up and down in a blasting bin; the cylinder A is connected with the bottom of the lower sealing disc; and the cylinder B is connected below the cylinder A. The steam blasting machine is simple in structure and high in working efficiency and can finish the supersonic steam blasting crush in milliseconds; materials are fed and blasted out more rapidly in the steam blasting process. In addition, the raw material accumulation and the material residues are avoided.

Description

Technical field [0001] The present invention involves a steam explosion, especially a steam explosion device for steam explosion and cooked steaming and cooked processing of starch, protein and other raw materials for biomass. Background technique [0002] The steam explosion technology has been more than 90 years since the 1920s. From the beginning of the production of artificial fiber boards, extracting ethanol, slurry paper, and animal feed in the food industry, the pharmaceutical industry, and the pharmaceutical industry,The application prospects and technical advantages of biological energy, materials, chemistry and environmental protection have become increasingly prominent. [0003] The full name of the steam technology is "steam blasting technology". The technical principle is: the steam molecules inside the biomass tissue have emerged in a short time, and the raw materials are decomposed by less energy according to less energy.The explosion machine is a mechanical device...

AI Technical Summary

Problems solved by technology

However, in fact, the existing steam explosion devices in use cannot meet the requirements of technical performance, and can only be called thermal spray devices. The basic mode is: a valve is installed at the bottom of a pressure vessel, and the valve is quickly opened To realize the sudden release of pressure in the container, resulting in a thermal spray effect

The main problem of this mode is: because the venting section of the valve is much smaller than the volume section of the pressure vessel, and the opening speed of the high-pressure valve is limited, the pressure release process of the high-pressure steam in the vessel takes a long time, generally 3-10 seconds, far The release cannot reach the millisecond level, so it is impossible to realize steam adiabatic expansion and work, which reduces the energy density and makes the material decomposition degree not high

However, although this invention belongs to the principle of sliding cover, in fact, the upper part of the explosion chamber adopts sliding sealing, and the lower part still adopts the principle of end face sealing, which leads to a very large loss of sealing ring, and the sealing ring needs to be replaced frequently, which affects work efficiency. ;Adopt the way of feeding in the middle of the upper sliding sealing cover, and the feeding port adopts suspension sealing, which requires a separate cylinder to provide power, which not only complicates the device but also increases the equipment cost

[0007] Specifically, the steam explosion machine with this structure mainly has the following problems: first, the lower end face is sealed, resulting in a great loss of the sealing ring; The connection constitutes a sliding cover, which makes the entire sliding cover a "squirrel cage" structure, and additionally needs to add a sealing device for the feeding port; the existing suspension sealing device or thread seal, the raw material directly enters the explosion chamber from the feeding port. After the warehouse, when the sliding cover moves downward to open the port seal, the material is delayed or hindered by the multi-pillar resistance of the "squirrel cage" structure of the sliding cover, and the explosive material will accumulate in the On the chassis of the sliding sealing cover, in the state of continuous steam explosion of the numerical control, the explosive materials accumulated on the chassis of the sliding sealing cover will burn into hard lumps after many rounds of steam explosion, especially in the steam explosion starchy When making raw materials, due to the viscosity of the material, it will also adhere to the pillars of the "squirrel cage" structure and the chassis of the sliding sealing cover, and all of them will be coked into hard lumps, which will seriously affect the quality of the explosive material and the continuous working state of the steam explosion machine. confirmed by experiment

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