Integrated intelligent mine pressure detection warning indicator

Abstract

The invention discloses overpressure and under-pressure warner for hydraulic timbering equipment. The overpressure and under-pressure warner is characterized by comprising a shell, wherein a pressure detection warning device is arranged in the shell, and comprises a warning loop; and the warning loop comprises a power supply, a warner and a pressure switch for detecting the pressure in the hydraulic timbering equipment and controlling the state of the loop. Compared with the prior art, the overpressure and under-pressure warner has the advantages of high intelligent degrees, perfect functions, convenience for detecting, vividness, reliability, low cost and low loss.

Description

technical field [0001] The invention relates to an independent integrated intelligent mine pressure detection and alarm indicator for underground hydraulic support equipment. Background technique [0002] Mine hydraulic support equipment (including single hydraulic prop, suspension support, hydraulic support and various jacks) is an important equipment to ensure the safety of the current mine working face. Due to the complex underground geological structure, the natural change of mine pressure and the leakage of hydraulic medium, the working resistance (loss and overpressure) of hydraulic support equipment is unbalanced, which is the cause of accidents such as roof loosening, column collapse and overpressure collapse. main source of occurrence. Example: According to the requirements of clause 6.1.7 in the coal industry standard MT / T548-1996 "Specifications for the Use of Single Hydraulic Props": when the diameter of the oil cylinder is Φ80mm, its working resistance is not l...

AI Technical Summary

Problems solved by technology

[0003] However, the currently widely used hydraulic support products do not have the function of safety detection and alarm for the working resistance, and accidents such as the collapse of the top plate of the inverted column or the collapse of the broken column due to overload often occur due to too small or too large working resistance. Loss of pressure or overpressure of the support equipment will cause the pillar to collapse due to loss of support, or the top beam will collapse due to the uneven distribution of force on multiple monomers or supports, which can easily cause personal injury or death accident and property damage

At present: In order to prevent accidents, underground security personnel adopt the method of frequent inspections of the supporting force of hydraulic equipment (such as single hydraulic props, suspension brackets, etc.), through shaking or knocking and other very backward means Checking the working resistance of the pillars one by one not only cannot find and solve problems in a timely and effective manner, but also wastes a lot of time and energy. It is impossible to know whether the current working status of the hydraulic support equipment is normal, so it is impossible to rule out potential Security risks

Images