Comprehensive efficiency evaluation and monitoring method of main shaft hoisting system for lean production

Abstract

The invention discloses a comprehensive efficiency evaluation and monitoring method of a main shaft hoisting system for lean production. The method comprises the steps that a planned hoisting time andan actual lifting time of the main shaft lifting system within an evaluation period are firstly obtained, and operation rate of the main shaft hoisting system is obtained through computing; a theoretical hoisting amount and an actual hoisting amount of the main shaft hoisting system within the evaluation period are obtained, and the loading rate of the main shaft hoisting system is obtained through computing; the refuse content of hoisted raw coals of the main shaft hoisting system is further obtained, and the quality qualifying rate of the main shaft hoisting system is obtained through computing; based on the obtained operation rate, loading rate and quality qualifying rate of the main shaft hoisting system of the main shaft hoisting system, the comprehensive efficiency of the main shafthoisting system is evaluated through computing; monitoring and overrun alarming are conducted on the main shaft hoisting system comprehensive efficiency based on the evaluation model. The method hasthe advantages that the evaluation on the comprehensive efficiency of the main shaft hoisting system is scientific, the comprehensive efficiency of the main shaft hoisting system can be controlled within a required range, and the method is a practical and effective method.

Description

technical field [0001] The invention relates to the field of evaluating and improving the efficiency of production systems of coal mine enterprises, in particular to a method for evaluating and monitoring the comprehensive efficiency of a main shaft hoisting system for lean production. Background technique [0002] The main shaft hoisting system is the key equipment in the main coal flow transportation system of coal mine enterprises, and its hoisting efficiency plays a very important role in the comprehensive output efficiency of the main coal flow system of the coal mine. Studying the comprehensive efficiency evaluation and monitoring method of the main shaft hoisting system plays an important role in improving the overall efficiency of the production system of coal enterprises. [0003] The overall efficiency and actual lifting capacity of the main shaft hoisting system are affected by the failure time of the main shaft hoisting system, the maintenance time, the empty tim...

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Problems solved by technology

Therefore, the comprehensive efficiency evaluation of the main shaft hoisting system should consider the influence of all the above factors, which is a very complicated task

At present, there is still a lack of an effective comprehensive efficiency evaluation and monitoring method that can target the operating characteristics of the main shaft hoisting system of coal enterprises

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