Oil shale particle crushing device based on ultrasonic waves

Abstract

The invention designs an oil shale particle crushing device based on ultrasonic waves. The oil shale particle crushing device comprises an ultrasonic generator collection bin, an ultrasonic combined high-frequency cutting tooth crushing bin, an oil shale particle storage bin and an oil shale particle V-shaped discharging area, a vibration assisting plate back plate in the crushing bin is driven by high-frequency electric signals of an ultrasonic generator and a displacement amplifier, and a piezoelectric ceramic transducer generates high-frequency vibration; six groups of vibration assisting plate tooth grooves are matched with cutting wheels and cutting blades in the crushing bin, blocky oil shale is subjected to ultrasonic energy impact and blade cutting strong stress at the same time, oil shale particles are subjected to fatigue damage accumulation, and the particle size of the blocky oil shale can be gradually reduced. The lower end of the oil shale particle storage bin is matched with a gravity sensor, and a V-shaped discharging bin achieves uninterrupted discharging. The oil shale particle crushing device optimizes the oil shale crushing effect and improves the oil shale crushing efficiency.

Description

technical field [0001] The invention relates to the field of oil shale pyrolysis, in particular to an ultrasonic-based particle crushing and feeding technology method before oil shale pyrolysis. Background technique [0002] Oil shale is an important unconventional oil and gas resource in my country, and its development and utilization is of great significance to alleviate my country's energy shortage. During the pyrolysis process of oil shale particles, gas products diffuse inside the particles and undergo secondary reactions, and this process is affected by particle size. Optimizing the cracking device of oil shale raw materials and improving the reaction conditions of oil shale cracking are of great significance for improving the yield and quality of products. Particle size is one of the important parameters affecting the pyrolysis process, and the size of particle size will affect the particle size. The heating rate even affects its volatile analysis rate, which in turn...

AI Technical Summary

Problems solved by technology

Traditional mechanical crushing devices have outstanding defects such as slow speed, large wear and incomplete crushing, so a combined ultrasonic impact crushing device is provided. Ultrasonic crushing has lower cutting requirements than conventional technologies, and the average cutting force of ultrasonic vibration cutting is higher than conventional The cutting is 20.5% smaller, which can realize the more thorough crushing of oil shale particles, and realize the protection of the device while improving the crushing efficiency and reducing the wear of mechanical cutting blades

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