Selecting the sealing position for stope face after mining;

The Research on New-style Seal-filling Hydrogel for Mine;

Study on gas-producing type rapid seal gasbag

Simply Analysing the Requirement of the Air-cooling Airtight System for the Function of Complementing Water;

Application in the Airtight Technology of Chemical Spraying of QC-3 is Fast and Airtight in the Coal Lane

According to the actual situation,using the following methods such as airtight dust,automatical adding water,machinery dust removal,high-pressure static electricity,wet cleaning,etc.

Combination of well testing and logging tech makes true of closed injection profile well logging which changes former wire line logging that needs giving out over-fall first and then conducting operation to avoid surface pollution that acquires true data on normal water in- jection situation and saves manpower and material resources.

Such as compound initiation system, feeding water successively in course of reaction, reducing step- down time in later time of reaction, new type anti- sticking agent, adding material in closed condition, crude material monitoring and DCS computer automatic control technology.

A new inflatable device based on the automatic control principle of pressure was developed to overcome shortcomings in traditional sealing technologies and to meet the needs of sealing fire areas safely.

This article introduces the results using mechanical dusting in sealing and wetting,reforming the dust collector, electrostatic dusting in high pressure,and so on,in the crushing workshop of the Ore-dressing Plant in Baotou Steel.