National Security Supervision Bureau recently disclosed that at present there are nearly 300 thousand Jiawei chemical production units, including small chemical security capability is relatively poor accounted for more than 80%. In the first 11 months of this year, there were 203 accidents and 238 deaths in the chemical industry. The total number of accidents was still large, and the major accidents have not been effectively checked.
There are only a few days left until the end of 2017. Please follow Xiaobian to review the 10 typical accidents that this chemical industry has been paying close attention to this year.
1. Wanhua oil deflagration accident
In April 2, 2017, is located in the grand Anqing City Economic Development Zone of Anqing Wanhua Oil Company Limited (hereinafter referred to as the Wanhua company) occurred deflagration accident within the plant, resulting in 5 deaths, 3 people were injured, the direct economic loss of 7 million 866 thousand yuan.

After preliminary analysis, the direct cause of the accident is:
In October 2016, Wanhua oil limited company will idle its plant illegal lease to not have the conditions for safe production in Taixing city of Jiangsu province sunMy Fine Chemical Co. Ltd., the company used the production process from the network query, without formal design, production of pharmaceutical intermediates two hydroxypropyl theophylline alteration device (not containing 25% before drying ethanol).
In April 2, 2017, the operating personnel in the drying room sealed without crushing two hydroxypropyl theophylline completely dry, non explosion proof switch open mill, spark, detonated two hydroxypropyl theophylline in the volatile alcohol and air to form explosive gas, further igniting chemicals in the mill stacking surrounding alcohol flammable the cause of the accident. The detailed reasons for the accident are still in further investigation.
Accident 2. Lixing special rubber company chlorine poisoning
On May 13, 2017 at 3:30 in the morning, Hebei city of Cangzhou Province Hing Limited by Share Ltd (hereinafter referred to as the special rubber Hing Company) chlorine leakage accident occurred, resulting in the company's on-site staff and nearby personnel poisoning, surrounding masses of more than one thousand people were evacuated, the accident caused 2 deaths, 25 people hospitalized.
After preliminary analysis, the direct cause of the accident is:
Lee Hing Company to reduce the cost, avoid the frequent switching of chlorine using liquid chlorine cylinder, the illegal construction of a volume of 15m3 storage tank, permission to increase the reserves of liquid chlorine;
The early morning of May 13th, at the discharge to the storage tank through the liquid chlorine tank, pipe rupture caused by the valve after the tank bottom valve of liquid chlorine leakage;
Leesume's first time inadequate emergency response, resulting in a long time a large number of liquid chlorine leakage, resulting in the field staff and nearby personnel poisoning. At present, the detailed cause of the accident is still in further investigation.
3. Jinyu Petrochemical explosion in Linyi
June 5, 2017 at 1 pm, the loading area logistics department of Linyi Jinyu Petrochemical Co. Ltd. a liquefied petroleum gas transportation tanker occurred in the unloading process for liquefied gas leakage, explosion caused a major fire accident caused 10 deaths, 9 people were injured, the direct economic loss of 44 million 680 thousand yuan.
It is calculated that the total explosion energy released by the accident is 31.29 tons TNT equivalent, and the damage equivalent is 8.4 tons TNT equivalent (the maximum one explosion).

The direct cause of the accident: tanker accident driver long-distance travel, continuous operation of liquefied gas unloading operation at midnight when the truck did not strictly enforce the rules, serious errors, resulting in the quick connect interface with the liquid discharge pipe to tank a reliable connection, in the open tank liquid valve instantaneously from liquefied gas tank, causing a large number of leakage. The on-site personnel failed to deal with it effectively. The liquefied gas after leaking quickly gasified and diffused rapidly. The explosive mixture of air and the air reached the explosive limit.
The continuous combustion of the leaked gas leakage region has resulted in the explosion of the tank body of the leaked vehicle and other transportation vehicles suspended in the loading and unloading area. The explosion caused the decomposition of the car body and tank, the splashing of the tank body and other splashes to the surrounding facilities, material Gallery, LPG tank and isooctane storage tank, resulting in the leakage and combustion of 2 LPG tanks, and the combustion of 2 isoctane tanks.
According to the analysis, the possible ignition source of the first explosion is the electric spark produced by the non explosion-proof electrical apparatus used in the duty room of Linyi Jinyu Petrochemical Co., Ltd.
4. Guizhou gas pipeline explosion
At 10 o'clock in July 2, 2017, China's oil and natural gas transmission pipeline in Qinglong sand section of Guizhou province triggered slope collapse and sideslip due to recent continuous heavy rainfall, and caused gas leakage and explosion. 8 people were killed and 35 were injured.

5. gas pipeline explosion in Songyuan, Jilin
14:45 on July 4, 2017 Xu, resulting in gas leakage in Songyuan City downtown road Ningjiang district Lane Road in the construction process, the explosion in the repair of Gas Co. As of now, it has been verified that 5 people were killed and 89 (14 of them were seriously injured) were hospitalized.

The cause of the accident is still under investigation and has not been announced.
6. Xinjiang Yihua burning explosion accident
18 July 26, 2017 6 or so, Hubei Yihua Refco Group Ltd (hereinafter referred to as Hubei Yihua group) belongs to Xinjiang Yihua Chemical Industry Co. Ltd. (located in the Xinjiang autonomous region Changji Zhundong economic and Technological Development Zone, Xinjiang Yihua) ammonia gas furnace blasting accident occurred, resulting in 2 deaths, 17 people were injured (burn), 13 people were slightly injured, this is Xinjiang Yihua occurred this year fourth people from the dead accident.
7. Sinopec Dalian Petrochemical fire
At 18:40 on August 17, 2017, a fire was caused by the failure of the raw material pump of the Dalian Petrochemical Co heavy oil catalytic cracking plant. There are no casualties on the scene.

Initial cause of the accident:
The location of the accident is 1 million 400 thousand tons / year, the raw material pump P2201/2 of the fractionating area of the heavy oil catalytic cracking unit. The pump adopts a single face corrugated pipe seal, the internal medium is catalytic material, and the medium temperature is.It's 90 C.
According to the scene description and operation analysis of operators, we initially identified the cause of the accident as the leakage of the P2201/2 seal of the raw material pump, which led to the ignition and then ignited the upper oil and gas pipeline. The specific cause of the accident is under investigation.
8. Dalian a Petrochemical Industries Co hydrogen sulfide poisoning
About 19:15 on November 18, 2017, 9 workers in Henan Yanling Shun Petrochemical Machinery Equipment Co. Ltd. in Dalian West Pacific Petrochemical Co do sulfur plant equipment maintenance and cleaning for tube bundle heat exchanger, hydrogen sulfide poisoning occurred, the wounded were immediately sent to the hospital, in which 3 people were seriously injured and killed, another 6 people by the First Affiliated Hospital of Dalian Medical University hospital, vital signs smooth.
The cause of the accident is under investigation at present.
9. Lianyungang polyxin biological “ 12• 9” major explosion
In December 9, 2017, 10 people died and 1 people were injured in a major explosion in Lianyungang Polytechnology Co., Ltd.

10. Shandong a chemical plant deflagration caused 7 deaths and 4 injuries
Around 9:15 December 19, 2017, a 15 thousand year old plastic chemical modifier (AMB) production unit occurred in Weifang, Shandong Province, which caused 7 deflagration accidents and 7 casualties.

After preliminary analysis, the direct cause of the accident was: natural gas by direct combustion heating system the new string into the drying system, and with the air to form explosive mixture gas drying system, in the process of starting with natural gas heating system enabled conditions encountered in the fire cause deflagration. The detailed cause of the accident is being further investigated.
The source of this article: chemical 707;

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