Coal sample preparation and coal seam permeability measurement integrated device and working method thereof

Abstract

A coal sample preparation and coal seam permeability measurement integrated device comprises a bottom plate, a feeding part, a stirring part, a coal seam cutting part and a coal seam permeability testing part, the feeding part, the stirring part and the coal seam cutting part are sequentially arranged from top to bottom, a door frame type support is fixedly connected to the upper surface of the bottom plate, and the stirring part and the coal seam cutting part are both fixedly installed on the door frame type support; the feeding part is fixedly installed at the top of the stirring part, the coal seam permeability testing part is fixedly installed on the bottom plate, and the discharging end of the feeding part is connected with the feeding end of the stirring part; the discharging end of the stirring part is connected with the feeding end of the coal seam cutting part, the air outlet end of the coal seam permeability testing part is connected with the air inlet end of the coal seam cutting part, and the air outlet end of the coal seam cutting part is connected with the air inlet end of the coal seam permeability testing part. According to the invention, the coal sample preparation and the coal seam permeability testing are integrated, the end cleat and surface cleat distribution in an underground coal seam can be simulated, and a novel device and method is provided for the indoor determination of coal seam permeability.

Description

technical field [0001] The invention relates to the field of coal seam permeability testing, in particular to an integrated device for coal sample preparation and coal seam permeability measurement and a working method thereof. Background technique [0002] There are mainly two existing test methods for coal seam permeability: one is the laboratory measurement method, which has the disadvantage that it is only effective for bottom permeable coal seams, and the other is the direct measurement method of well testing, which has the disadvantage that it can only be measured on site , and most coal seam permeability testing methods can only use existing coal samples or prepared coal samples, and cannot truly simulate the distribution of coal seam cleats. Contents of the invention [0003] The purpose of the present invention is to provide an integrated device for coal sample preparation and coal seam permeability measurement and its working method. The present invention integra...

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Problems solved by technology

[0002] There are mainly two existing test methods for coal seam permeability: one is the laboratory measurement method, which has the disadvantage that it is only effective for bottom permeable coal seams, and the other is the direct measurement method of well testing, which has the disadvantage that it can only be measured on site , and most coal seam permeability test methods can only use existing coal samples or prepared coal samples, and cannot truly simulate the coal seam cleat distribution

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