“All units must strictly implement coal quality control measures，Adhere to source control、System Control、Wash selection optimization、Principles of laboratory assessment，Ensuring coal quality dynamically meets standards。”Recently，Hanjiawan Coal Company held a coal quality work summary and arrangement meeting，The meeting put forward specific requirements for improving the level of coal quality control。

Since the first quarter，The company is facing the complex geological conditions of the current mine、Under the influence of coal seam occurrence and market price，"Targeted" coal quality control through multiple measures，Vigorously promote the gold content of high-quality commercial coal to greatly increase。

In view of the recent instability factors of coal quality at the main mining 213109 working face，The company adjusts the production process in a timely manner，Comprehensively promote refined management of coal quality。Start from the source of production，Keep a firm grasp on on-site management、Responsibility implementation、Three key points of link control。Implement whole-process quality supervision、Assessment，m88 casinoGrasp the "lifeline" of coal quality management。

"In production process，We resolutely put an end to excessively high working surfaces、Leaking top、The occurrence of substandard quality phenomena such as bottom breaking，Minimize the amount of gangue cutting，Reduce the ash content of raw coal，Guarantee the quality of raw coal。" Zhang Zhirui, captain of the comprehensive mining team said。

Under daily management，The comprehensive mining team insists on focusing on coal quality from the source，Strictly control the quality of top coal caving，Adjust the bracket in time according to the thickness of the top coal。Enhancing the use of working surfaces、Drainage Management，Stop the machine and water supply，It is strictly forbidden to use coal with water in it, causing secondary mining to affect the quality of raw coal。The gangue produced by the comprehensive excavation team from half of the coal and rock tunnel excavation，and the bottom、Expansion、Strict distribution and transportation control of inferior coal produced by roof lifting，Avoid certain pollution and impact on the company’s overall coal quality。

With source control，The improvement of raw coal washing is also crucial。“We target existing processes，Continuously strengthen washing equipment and process management，Adjust the screening particle size in a timely manner、Sorting density and other parameters，Ensure the calorific value of clean coal、Ash、Moisture and M88 gameother indicators meet customer needs。" said Zhang Lin, director of the coal washing plant。

Seeking benefits from coal quality，Use coal quality to increase efficiency。By washing and processing raw coal、Making a fuss about strict on-site management and other aspects，The coal washing plant achieved a medium block、The quality of seed coal and other materials has been steadily improved。Since January，The calorific value of lump coal remains above 5700 kcal，The lower limit rate reaches 13%，Clean coal sales reached the expected target。

Also，The company formulates a reward and punishment mechanism for coal quality management assessment，Dedicated personnel are assigned to each shift to conduct inspections, supervision and management of various underground mining working surfaces from time to time，Strict Implementation Day Notice、Weekly assessment、Monthly redemption system。Established coal quality production information dispatching group，In response to the uploaded coal quality problem，Managers will promptly contact or hold accountable the relevant mining team，Ensure that coal quality problems are resolved in a timely manner。

The market is also an examination room，For coal companies，Coal quality is the magic weapon to win。"Next step，The company will base on market demand，Focus on the source of production、Key points of transportation system control、Key points in process management、Focus M88 loginon four aspects of equipment and facilities installation，Comprehensive control of product quality，Continuously deliver high-quality commercial coal to the market。"The main person in charge of the company said。(Ai Feng Li Wei)