Straight cylinder type cyclone separator

Abstract

A straight cylinder type cyclone separator comprises a rectangular air inlet pipe (1), an exhaust pipe (2) and a discharging pipe (6). The straight cylinder type cyclone separator is characterized by comprising a straight cylindrical body; the body is divided into a rotary separation section (3), a free settling section (4) and a natural accumulating section (5) from top to bottom; the diameter of the body is D; the height H1 of the rotary separation section is equal to 1.5D-4D, the height H2 of the free settling section is equal to 0.5-1D, and the height H3 of the natural accumulating section is equal to 0.1-0.35D; the height a of the rectangular cross section of the air inlet pipe is equal to (0.45-0.8)D, and the width b of the rectangular cross section of the air inlet pipe is equal to (0.2-0.4)D; the diameter Dc of the exhaust pipe is equal to (0.4-0.75)D; the diameter De of the discharging pipe is equal to (0.3-0.6)D; the insertion depth h of the exhaust pipe is equal to (0.4-0.9)D. Under the condition of high inlet particle concentration, particles in air flow are separated out in a cyclone separation area; a part of the particles form a particle pile with a certain gradient in the natural accumulating section after passing through the free settling section, and the other particles are discharged through a discharging port. By means of the straight cylinder type cyclone separator, backmixing of the particles near the discharging port is prevented; meanwhile, the pressure loss of the separator is smaller, the wall abrasion is not severe, the structure is simple, the manufacturing cost is low, and the straight cylinder type cyclone separator is especially applicable to gas-solid separation situations under the condition of high inlet particle concentration.

Description

technical field [0001] The present invention relates to separators, and more particularly to straight cylinder cyclones for high inlet particle concentrations. Background technique [0002] Cyclone separator is an important gas-solid separation equipment, widely used in coal-fired power generation, petrochemical and environmental protection and other fields. The cylindrical-cone cyclone separator is currently the most common structural style of the cyclone separator, which is composed of an upper cylinder and a lower cone. The dust-laden airflow enters the separation space of the separator through the tangential inlet to generate a swirling motion, and is greatly accelerated in the cone section, and the particles will be thrown to the wall due to their large inertial force, and will be thrown downwards near the wall. The air flow is carried to the discharge port. However, the radial distance at the bottom of the barrel-cone cyclone separator is the shortest, which makes th...

AI Technical Summary

Problems solved by technology

[0004] The invention solves the problems of high production cost of the cone section of the traditional cyclone separator, back-mixing near the discharge port, large pressure loss of the cone section and serious wall wear, etc., and provides a straight cylinder type cyclone separator

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