A series of technologies of long-distance autoignition,extinguishing resisting,explosion resisting due to backfire and flame testing used for bleeding devices of blast furnace gas of Maanshan Iron & Steel Co.

It is feasible to realize gas zero bleeding if it pays attention to the following: to perfect and optimize matching facilities of the gas system;strengthen adjustment function of the system;establish energy management goal and information communication platform;and improve comprehensive utilization ratio of gas.

Through adding a little of equipment consisted of PLC control system, release pipe for controlling upper-limit pressure, etc, and defining relative technical parameters the safe problem was solved and the recovering converter gas without gas tank was achieved.

A study on discharge conditions in gamete of Monostroma nitidum;

Based on the academic thought that "coal structure decides the nature of coal", which is from the microstructure of coal to study the gas adsorption, emission characteristics.

The main solution to solve the problem of Blast Furnace Gas recovery and emission is to cooreinape the relationship between the rational use of intustrial secondary energy and the securaty of production.

From April to May in 1998, time budget and behavior patterns of semi-free Cervus nippon were studied in Pingshan Wildlife Experimental Farm.

This paper presents the whole process of the reforming of iso-pressure, iso-pressure blow off and its stand-by system used in the serial type bell-less top with two coaxial vertical hoppers, reaching the aim of decreasing replacing time and avoiding damage to B.