A quantitative simulation device and method for downhole spray dust removal

Abstract

The invention discloses a simulating device and a simulating method of underground spray dedusting quantification. The device comprises an air blower, a coal dust chamber, sieves, a spray chamber, spray heads and the like. Coal dust with different grain diameters is blown through the air blower, wherein the grain diameter range of the coal dust can be realized through the sieves with different bore diameters and combination of the sieves, and then removal efficiency of the coal dust with different grain diameters and different concentrations by means of spray dedusting is enabled to be tested conveniently, and quantification of spray-used water is achieved according to the dust removal efficiency. The spray-used water is enabled to pass through a pipeline carrying coal gangue of a working seam to simulate change of water quality of the spray-used water after the spray-used water passes through a roadway, and influence of the change of the water quality on underground water is tested, influence of other ions in the water on the deducting effect after the circulating spray-used water is filtered with a conventional coagulation method and suspended matter is up to standard is tested, and therefore guidance is provided for selection of an appropriate mine water processing method, the quantification of the spray-used water is achieved according to the dust removal efficiency, the changing rule of the water quality in the roadway is obtained, and guidance is provided for selection of the appropriate mine water processing method and the coagulant type.

Description

technical field [0001] The invention belongs to the technical field of spray dust removal, and in particular relates to a quantitative simulation device and method for downhole spray dust removal. Background technique [0002] In the process of coal mining, such as drilling, blasting, tunneling and coal mining operations, roof management, coal loading and transportation, etc., a large amount of dust will be generated. Underground spray dust removal is a common method of dust removal. Most of the northern mining areas are in water-scarce areas. Coal mining has caused groundwater levels, and mine water has become an important water resource in mining areas. Nowadays, after simple filtration / coagulation filtration (SS? 30) or advanced treatment such as reverse osmosis, most of the mine water in the mining area is discharged into the mine for underground dust removal (taking up most of the water) and fire protection. The water consumption for dedusting has not been scientifical...

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Problems solved by technology

[0003] The purpose of the embodiments of the present invention is to provide a quantitative simulation device and method for underground spraying and dedusting, aiming at solving the problem of large Part of it is discharged into the mine for underground dust removal (taking up most of the water) and fire protection. There is no scientific quantification of water consumption for spray dust removal, which may cause a huge waste of water resources and may also increase the pollution of groundwater. question

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