Mine dust removal fan with driven swirl channel and design method of driven swirl channel
A technology of dust removal fan and swirl channel, which is applied in mining equipment, separation methods, chemical instruments and methods, etc., and can solve problems such as large volume, low dust removal efficiency, large length or width, etc.
Active Publication Date: 2016-07-06
HUNAN UNIV OF SCI & TECH
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Problems solved by technology
Therefore, the dust collectors used in Germany, Poland and other countries are not suitable for most underground coal mine dust removal projects in China due to their large volume or high operating pressure drop.
Therefore, based on the current state of technology at home and abroad, there are still the following deficiencies for China's underground coal mine dust collectors: (1) low dust removal efficiency (about 80%), (2) low dehydration rate (less than 85%), (3) running resistance High (higher than 2200Pa), (4) length or width is too large (length exceeds 10m, width exceeds 2.5m), (5) volume is too large
Method used
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[0122] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0123] see figure 1 , is a schematic diagram of the principle structure of the mine dust removal fan with driven swirl channels in this embodiment. exist figure 1Among them, 1 is the collecting port, 2 is the local fan, 3 is the atomizing water spray nozzle, 4 is the swirl guide vane, 5 is the dehydration plate, 6 is the water collection tank; A indicates the dusty airflow, B indicates the fan section , D represents the driven cyclone dust removal section, E represents the dehydration section, F represents the purified air flow; X is the X axis of the Cartesian coordinate system, Y is the Y axis of the Cartesian coordinate system, and Z is the Z axis of the Cartesian coordinate system.
[0124] figure 2 It is a three-dimensional schematic diagram of the structural parameters of the driven cyclone dedusting section of the present embodimen...
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Abstract
The invention discloses a mining dust removal fan with a driven cyclone channel and a driven cyclone channel design method thereof. The mining dust removal fan with the driven cyclone channel disclosed by the invention comprises a fan section, a driven cyclone dust removing section and a dehydrating section which are sequentially connected, wherein the fan section comprises a collecting opening and a local ventilator, the driven cyclone dust removing section comprises an atomizing water spraying nozzle, a cyclone guide vane and a water collecting tank, and the dehydrating section comprises a dehydrating plate and a water collecting tank. The dimensional structural parameters of the driven cyclone dust removing section of the mining dust removal fan, the operational parameters of the local ventilator and the dust removal efficiency of the driven cyclone dust removing section of the mining dust removal fan satisfy a certain formula. In order that the dust removal efficiency is higher or closer to project demand, the structural parameters of the driven cyclone dust removing section and the operational parameters of the local ventilator are optimized according to the formula. According to the invention, the mining dust removal fan with the driven cyclone channel can be optimized, thereby facilitating project design. The method has universality.
Description
technical field [0001] The invention belongs to the technical field of integration of local dust removal and fans in underground mines, and in particular relates to a mining dust removal fan with a driven swirl channel and a design method for the driven swirl channel. Background technique [0002] Coal mine workers are over-exposed to aerosol respirable mine dust, which can harm their respiratory system and even cause fatal respiratory diseases. Zheng Li reported that 2.65 million workers in Chinese coal mines are exposed to mine dust every year, the detection rate of pneumoconiosis is as high as 7.2%, and the cumulative number of pneumoconiosis patients has exceeded 57,000; from NIOSH (National Occupational Safety and Health Research of the United States Hall of the National Academy of Sciences) pointed out that with the increase of coal mining intensity, the detection rate of pneumoconiosis among workers exposed to mine dust in underground coal mines rose from 4% in 1994 t...
Claims
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IPC IPC(8): E21F5/00B01D50/00B01D45/12
Inventor 陈世强王海桥刘荣华李轶群赵杰章晓伟
Owner HUNAN UNIV OF SCI & TECH