A Calculation Method of Coal Production
A calculation method and coal mining machine technology, applied in mining equipment, measuring devices, earthwork drilling and mining, etc., can solve problems such as hysteresis, and achieve the effect of overcoming hysteresis and submitting calculation accuracy
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Embodiment 1
[0030] The present invention proposes a calculation method for a fully-mechanized mining face, the basic principle of which is: by calculating the volume V of each cutter on the fully-mechanized mining face, the average density ρ of the coal seam cut by the fully-mechanized mining face is Relatively fixed and easy to measure, multiply the coal seam density by the volume to get the coal mining volume p per knife, and sum the coal mining volume p per knife to get the total coal mining volume P.
[0031] The volume V of each cutter on the fully mechanized mining face is the bottom area S of each cutter multiplied by the height H′. In the coal seam, each cutter is driven by the hydraulic support, so each cutter cuts The bottom surface of the coal seam is approximately rectangular, and the width W of the fully mechanized mining face is fixed, and the depth D cut by each knife is a set value, so the D cut by each knife is also fixed.
[0032] The height of the coal seam may vary on ...
Embodiment 2
[0039] In another embodiment, considering that the degree of undulation of the coal mine measurement is different, in order to calculate the workload more accurately, the volume of coal mined per knife is calculated in a differentiated and segmented manner. Firstly, the height measuring sensor is used to measure the height corresponding to the coal seam to be mined, and the number of hydraulic supports installed on the above height measuring sensor is relatively large compared to the interval supports. Then, select the hydraulic support installed with the height measuring sensor corresponding to the large difference in the above data, indicating that the coal seam height has undergone a large change between the two hydraulic supports, and open the other installations between the above two hydraulic supports. The altimeter sensor is used for measurement and calculation. That is to say, when calculating the volume of the cut coal seam, it is first divided into several sections w...
Embodiment 3
[0052] Accompanying drawing 2 schematically shows a certain problem faced in the height measurement of the current hydraulic support: that is, when the working face of the fully mechanized mining face must adopt the down mining and upward mining technology due to the undulation of the coal seam, the angle of the support often has a large deviation. Laser ranging method and other methods, such as gravity measurement method, hydraulic measurement method, inclination measurement method, etc., measure the distance between the hydraulic support and the vertical plane, that is, the vertical height L, or other methods measured by some height measurement methods. The height is between the vertical height L and the actual height H from the base of the hydraulic support, and there is a deviation from the vertical distance between the hydraulic support and the base. When estimating the coal mining volume or other calculations based on the coal mining height, use The parameter of should be...
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