Abstract
This paper includes the description of a separator, developed by the authors for the gas flow purification from the finely dispersed particles. The authors also studied the influence of the separator dimensions and the dusty gas flow rate on the degree of its purification from the finely dispersed particles, as well as on the change in the hydraulic resistance of this apparatus. This paper also shows that the main forces that make the greatest contribution to the purification of the gas flow from the finely dispersed particles are centrifugal and inertial. Moreover, the dependencies of the purification efficiency on the Stokes numbers are shown in this paper. The authors studied the change in the hydraulic resistance coefficient of this apparatus from the Reynolds numbers as well.
Highlights
Nowadays, the purification of the gas flows from the finely dispersed particles with a GLDPHWHU RI OHVV WKDQ ȝP LV Dn urgent task for the foundry, petrochemical, chemical, metallurgical and other industries
The authors of this paper developed a separator, allowing to clean the gas flows from the ILQHO\ GLVSHUVHG SDUWLFOHV ZLWK D GLDPHWHU RI OHVV WKDQ ȝP ZLWK DQ HIILFLHQF\ RI DW OHDVW 50% and when thHGLDPHWHULVPRUHWKDQȝP– the efficiency is at least 99% at an input gas flow rate of over 5 m/s. 995 Pa is the pressure loss value in the apparatus when the efficiency is equal to 1.6 m3/s
The purpose of this study is to analyze the influence of the rectangular separator dimensions and the rate of the dusty gas on the degree of its purification from the dust particles, as well as on the change in the hydraulic resistance of the apparatus
Summary
The purification of the gas flows from the finely dispersed particles with a GLDPHWHU RI OHVV WKDQ ȝP LV Dn urgent task for the foundry, petrochemical, chemical, metallurgical and other industries. In order to collect these particles, the foundry industrial plants can use the following apparatuses in a unique technological scheme for the air purification: inertial dust collectors, fabric filters, electrostatic dust collectors, etc. In order to purify the air (technological purification cycle), as a rule, the following equipment is installed first: vertical dust-collecting chambers, fly-ash collectors or cyclones, allowing to separate the coarse dust from the gas flows and significantly reduce the dustiness of the gaseous medium. The fabric bag filters or electrostatic dust collectors are to be installed that effectively purify the gas flows from the particles with a dLDPHWHURIOHVVWKDQȝP>-8]. As they operate, the gas purification efficiency decreases significantly. The development of new technological apparatuses, allowing to increase the efficiency and to reduce the costs for the gas purification from various finely dispersed particles, is one of the solutions to this problem
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