Shanghai Jiao Tong University

East China University of Science and Technology

Luoyang Petrochemical Engineering Corporation (Lpec) Sinopec

Sinopec Zhenhai Refining & Chemical Company Limited

Jianwen Wang

Chang Liu

Ming Chen

Hualin Wang

Zhuoqun Qian

Weiwei Ming

Qinglong An

Baohua Dai

Jiangqing Hu

Shuilong Yu

Jiaqiang Dang

Chengyu Xu

Tianming Hou

Hejie Li

Jianghua Xu

Lixin Zhang

A synchronous grinding-deburring method and system for a valve spool based on measurement of an overlap value. In the system, a synchronous grinding-deburring machine is configured to complete automatic clamping of the valve spool workpiece and synchronous precise grinding-deburring processing of a working edge; a loading-unloading robot is configured to grab and transport the valve spool workpiece; and a charged-coupled device (CCD)-based industrial visual camera is provided to facilitate an automatic assembly of a slide valve pair; a computer-based pneumatic mate-grinding test bench for an electro-hydraulic servo valve is provided for automatic clamping of the servo valve and automatic detection of the overlap value of a servo valve; and an industrial control console is provided for real-time control of a complete workflow and adaptive control of a processing parameter.

Synchronous grinding-deburring method and system for valve spool based on measurement of overlap value

The present invention falls within the field of purifying oil-laden wastewater, which provides a method for purifying coke-cooling wastewater in a delayed coking process in petroleum chemical field. The method comprises the following steps: (a) cooling the coke-cooling wastewater produced in a delayed coking process to 5-55&#xb0; C. under 0.1-0.25 MPa absolute pressure, to obtain cooled coke-cooling wastewater; (b) subjecting the cooled coke-cooling wastewater to solid-liquid separation, to obtain a coke breeze phase and a liquid phase; (c) further separating the obtained liquid phase, to obtain an oil phase and a water phase; and (d) further discharging water from the obtained oil phase, to obtain the separated oil phase. The present invention also provides an equipment for carrying out the method. The method of the present invention has the following advantages: low cost for the equipment, good effect for treating coke-cooling wastewater, effectively preventing sulfur pollution and foul odor pollution, saving resources and improving the overall utility of the resources, and improving the cool coking efficiency.

Treating method and equipment for coke-cooling wastewater

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Shanghai, China

Jianwen Wang