The staff structure in Japanese and German coking plants is introduced.The per capita coke production capacity of Kakogawa Coking Plant of Kansai Thermo Chemical Co.,Ltd.is 7 843t/a.The per capita coke production capacity of Schwelgern Coking Plant is 8  667t/a.

By analyzing the problems occurred during heating with BFG,the factors influencing the uniformity and stability of coke oven temperature are found out.Comparing the longitudinal temperature of JN60-6 type coke oven heated with BFG with the NOx content measured online at the coke oven chimney,a scheme for oven temperature control according to the NOx content monitored at coke oven chimney is proposed.The problem of delay by manual regulation of the oven temperature is solved.

Temperature decreasing features and measures to be taken during shut down of coke oven are introduced.Without external heating,measures such as sealing and insulating are taken during cooling down to slow down the cooling speed,so that damage to the coke oven brickwork can be reduced.

This paper introduces the technology of water seal type dedusting station on P.S.,i.e.U-tube water seal type P.S.dedusting station is adopted for No.5 battery of MaSteel,which is a solution to dust pollution while pushing and leveling on pusher side for top-charge battery.

The feasibility of a new technology for accurate online measurement of the coefficient of excess air α during coke oven heating is studied to explore a method and model to guide and improve the adjustment of coke oven heating system timely and quantitatively,so that gas can be completely burnt,and energy can be saved.

By comparing the advantages and disadvantages of fixed time maintenance and fixed oven number maintenance，and based on the actual application of these modes on 7m coke oven battery，this paper discusses the influence of maintenance mode to the operation of coke oven and demonstrates the advantages of fixed oven number maintenance during operation of coke oven battery.

Based on the production conditions of CDQ system，the high temperature measuring device overcomes the negative factors such as high temperature emissions and realizes online detection，image formation and chamber condition analysis，providing a sound foundation for the regular and annual maintenance of CDQ chamber.It brings remarkable economic benefit.

The upper large springs are subject to the weather,oven temperature and mechanical change during normal operation,so the load change varies in a wide range.The factors causing the change are found out,providing a sound foundation for the stable,continuous and efficient production of coke oven battery.

The overall structure,system capacity and features of the high level 8-cylinder hydraulic reversing machine are introduced.With its application on large scale coke oven battery,the production automation level is improved,providing a sound foundation for further improvement on automatic operation of coke oven battery.

The energy consumption of coal handling system of different design capacity is calculated，and the system capacity with minimum energy consumption is obtained. The energy recycling and utilizing during coal storage and processing，and solid waste innocent treatment process are calculated to provide data support for design optimization.

With comparison of the coke produced from the 7.63m coke oven battery of Shasteel,the properties of the coke produced with addition of DK additive in OAO NLMK Iron & Steel Company in Russia is studied.The result shows that the quality of coke produced in OAO NLMK is not as good as that produced in Shasteel.There are more fragment structures in the microstructure.Alkali metal content in ash is higher.CRI of coke and graphite degree are higher.

Based on the field survey and numerical simulation, the reason for the failure of CDQ tube heat exchanger is analyzed. Specified optimization suggestions are proposed.

In this paper，the deactivation of the hydrogenation catalyst with reaction time is studied by hydrogenation of high temperature coal tar over the micro-fixed bed reactor.The regeneration effect of high temperature calcination method and solvent washing method is studied and analyzed，based on which a suitable method for catalyst regeneration is finalized.

The effects of a series of Lewis acid catalysts on the activation of naphthalene ring under mild conditions are studied.The results show that Lewis acid FeCl3,AlCl3 and ZnCl2 exhibit good catalytic activity in the hydrogenation of naphthalene,and ZnCl2 can activate the naphthalene ring to the maximum extent,with a high yield of tetrahydronaphthalene.

Take one project for comprehensive use of coal in Xinjiang as an example，the process proposals before and after technical renovation are analyzed.Consumption of public utilities are calculated.The overall economical efficiency of the renovation is evaluated.

Take the waste heat of the coking process as the study object，with the use of advanced technology，and through establishing a matching relationship of energy coupling，the waste heat can be recovered and utilized，so that the energy utilization efficiency is improved a lot.

Chemical oxygen demand is an important index for evaluating the degree of pollution of water.It is an important parameter to monitor water quality.This paper analyzes the advantages and disadvantages of potassium dichromate method and spectrophotography method,based on which the measuring method for determination of coking waste water is improved.

A series of technological innovations have been implemented,including automatic regulation and control of the temperature on the top of benzol stripper,improvement of slag discharge of the vacuum debenzolization system and cleaning the final cooler without shut down,so the vacuum debenzolization process is optimized,bringing significant effect in energy saving and emission reduction.

This paper describes the importance of desulfurization of coke oven gas,and introduces HPF desulfurization process and FR desulfurization process.Based on the experiences in actual production,we combine HPF process and FR process and develop a“short column” HPF desulfurization process to make use of their advantages.The new design shows better effect in desulfurization.

Using the process data measured at plant site,and based on the steady state detection,clustering analysis and the model of heat exchange,a steady-state identification method for tubular furnace in crude benzol distillation unit is proposed to effectively identify the tubular heating furnace model.The effectiveness of this method is proved by the test of identification mode based on the actual data of a coking plant.

The vacuum crude benzol distillation with lean gas heating in the tube furnace instead of steam and the vacuum crude benzol distillation with steam are introduced.The influence of foul gas to the vacuum crude benzol distillation process，to the area of crude benzol condenser and cooler  and to the power of vacuum pump is introduced, and measures to reduce foul gas concentration are proposed.

The sensible heat and effective energy of saturated steam and superheated steam are studied and compared.Saturated steam is mainly used for heat exchange, while superheated steam is mainly used for power generation, drying and long distance transportation.