In combination with the two technical modifications, issues that need to be paid attention to are raised.

In this paper, the experience in revamping the process air compressor and the synthetic gas compressor in the 1000 t / d ammonia plant for its technical modification project with a capacity increase of 50%was introduced.

In order to improve the economic and social benefit of the enterprise,this article puts forward the scheme of technical modification for wet dedusting in boiler from the point of view of the satisfying pro-duction and lowering the cost.

Summary on the technical innovation of 40 kt/a ion-exchange membrane caustic soda evaporator;

The new process after technical innovation and its advantages are also introduced.

Through the analysis to the measurement data of ventilation resistance,we put forward technical transformation measure of ventilating system and carry on the technique economic demonstration to optimize ventilating system under the shaft,thus the aim of constructing an economic energy type mine is achieved.

Through utilization of reused water, the practical application of energy saving, decreasing consumption and reducing sewage discharge afford us reference for appropriate technical transformation and pipe design.

San Steel Group vested in technological transformation based on effective investment - decision theory and scored remarkable achievement.

Taking measures suited to local conditions, maximizing favourable factors and minimizing unfavourable factors, tapping the latent power thoroughly, are bases of standing on its own feet for every enterprise, which must dare to put into market development and technological transformations, so that every enterprise and whole nonwoven industry emerge completely new prospect.

By fully reviewing the recent work of economizing on energy in Zhujiang steel,this paper mainly focus on the work experience of economizing on energy and technological transformation project and the potential analysis of economizing on energy,it also discuss the further direction of economizing on energy.

The transportation capacity and needed power of the conveyor are examined,with a description of the modification to the conveyor in its roller damage,axis bend,axis in series etc.

Some measures of modification are taken, which bring prolonging life of reduction gear to several years from 3 months, unbroken scraper chains, eliminated float chain problems , decreasing gearing chains broken to 6 times/a from 45, and saving maintaining expense of 180 kRMB per year.

The modification and application in Yunnan province are given of Venturi type quick reactorspray drying process developed by Hongda Scientific and Technological Development Co.