Decompression device for device capable of detaching straw fibers in oriented mode and decompression method

Abstract

The invention discloses a decompression device for a device capable of detaching straw fibers in an oriented mode and a decompression method. The decompression device comprises a decompression discharge valve and a quick opening device, wherein the decompression discharge valve and the quick opening device are arranged in a material outlet of a detaching tank. The quick opening device comprises a fixing seat, a valve rod connecting assembly, an energy storage assembly and a valve reset assembly, wherein the valve rod connecting assembly, the energy storage assembly and the valve reset assembly are arranged on the fixing seat, the valve rod connecting assembly is fixedly connected with a valve rod of the decompression discharge valve, the energy storage assembly which can outward release stored energy is connected with the valve rod connecting assembly, the energy storage assembly exerts tensile force on the valve rod connecting assembly to drive the valve rod to rotate to open a valve, the valve reset assembly is also connected with the valve rod connecting assembly, and reverse action force is exerted on the valve rod connecting assembly to drive the valve rod to rotate to close the valve. Through testing conducted by a digital type dual-trace oscilloscope, the decompression discharge valve is rapidly opened within milliseconds, decompression time of the decompression discharge valve is made to meet the technological specified requirements, and the device capable of detaching the straw fibers can be guaranteed to be capable of forming a stable 'gas explosion' effect.

Description

technical field [0001] The invention relates to bamboo wood and agricultural waste straw treatment technology, in particular, the invention relates to a decompression device and decompression method used in directional dismantling straw fiber equipment. Background technique [0002] my country is a big agricultural country and a big country with biomass resources. At present, except for a small part of straw resources used as animal feed and living fuel, nearly 700 million tons of straw resources need to be processed every year. However, due to the lack of corresponding processing technology and equipment, most of the straw resources Because there is no place to store it, it can only be discarded or directly burned by farmers, which causes a great waste of resources. [0003] In recent years, many scientific and technological workers at home and abroad have studied straw pretreatment methods, including chemical methods, thermal spray methods, cooking methods, and steam explos...

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Problems solved by technology

[0007] The most advanced "continuous steam explosion equipment" abroad, represented by Canada's Sampda Company, also has the same problem. First, the equipment frequently turns on the steam explosion, and the steam pressure in the pressurized chamber is difficult to stabilize, and there is no burst power pulse width. , the equipment did not form a real "steam explosion" condition during the spraying stage, and the stored steam energy was not released "explosively" in the vessels and pores of biomass materials such as bamboo, wood and straw in the shortest possible time. After the equipment is decompressed and sprayed, there is a lot of raw material in the fiber; at the same time, there is a large amount of steam loss during the frequent spraying of the ball valve, the boiler temperature rises slowly, and the moisture content of the straw in the pressurized chamber of the equipment cannot be controlled. Although the decompression ball valve is used Carbide, but it is still seriously worn, and the service life of a better quality ball valve is only one month and other technical problems

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