【Haichuan Chemical Salary News】Jiangsu Province’s Notice on In-depth Inspections and Guidance for Enterprises Involved in the Production and Use of Vinyl Chloride, China Chemical Industry News? Today...
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This post was last edited by Desert Fish on 2019-1-21 at 11:04; 33 potential issues were identified! Notice from Jiangsu Province on Guidelines for In-depth Inspections of Enterprises Involved in the Production and Use of Vinyl Chloride
Prominent problems existing in enterprises: 1. The main responsibility for identifying and addressing potential risks is not fulfilled. On December 11, 2018, the second inspection team of the Provincial Work Safety Committee identified 9 safety hazards at Jiangsu Corning Chemical Co., Ltd.; the company had failed to implement the \"five requirements\" and adopt a closed-loop management system. On November 30, 2018, the Taixing Work Safety Supervision and Administration Bureau identified a hazard regarding the fact that the water spray system in the vinyl chloride storage area of Xinpu Chemical (Taixing) Co., Ltd. was not linked to gas alarms or temperature controls. As preventive measures, the company assigned field staff to conduct inspections of the storage area once per hour, carrying portable alarms for testing during these inspections. The actual field operators still conduct inspections every two hours, and there are no inspection records either; the preventive measures are not properly implemented.
2. The special campaign for diagnosing and addressing major safety hazards is not being carried out effectively. The PVC powder packaging site of Jiangsu Corning Chemical Co., Ltd. is at risk of dust explosions, as some of the electrical equipment is not explosion-proof. Employees of the contractor at Xinpǔ Chemical (Taixing) Co., Ltd. carried out grinding and welding work under the pipe rack on the south side of the power plant without a proper safety permit for such work, and there was no supervisor present; fire extinguishers were not available at the site where the work was being done, and the gutters were not sealed off.
3. Automatic control does not meet the requirements. Jiangsu Corning Chemical Co., Ltd. did not install automatic interlock cut-off devices on the inlet and outlet pipelines of its vinyl chloride gas tanks; the pressure of these tanks and the level of liquid in the water seal tanks were not monitored by the DCS control system, and there was no interlock control for the mixing process in the vinyl chloride polymerization reactors. The high liquid level interlock for the vinyl chloride spherical tank at Xinpǔ Chemical (Taixing) Co., Ltd. was disabled without proper approval procedures.
5. The equipment and facilities have defects. The polyvinyl chloride production plant using the emulsion method at Jiangsu Corning Chemical Co., Ltd. is not equipped with pressure gauges on the outlet pipes of the catalyst and emulsifier dosing pumps; furthermore, a flame arrester is not installed on the vent pipe of the emergency relief collection tank in the emulsion polymerization reactor. There is a leak at the flange of the flow meter on the chlorine feed main pipe of the chlorination reactor in the vinyl chloride production unit of Xinpu Chemical (Taixing) Co., Ltd., resulting in chlorine leakage.
There are only a few potential hazards, yet they conceal significant risks of accidents; it is necessary to take urgent action to address and resolve them. Otherwise, no amount of empty talk will be sufficient – by the time a serious accident occurs, it will be too late to talk about these issues.