The Report on Disposal of Suspected Internal Explosion Accident of Acetylene Black Water Tank in the First Phase Project of' 6 28' Chemical Company provided by Qinghai Salt Lake Industry Co., Ltd. stated that on June 28, 2065 16: 40, the pipeline of black water tank, an environmental protection accessory facility of acetylene plant in the first phase project of Qinghai Salt Lake Industry Co., Ltd., was reconstructed, and a suspected internal explosion accident occurred, resulting in four on-site supervisors and operators being injured. After the accident, Chemical Branch started the emergency plan and set up an emergency rescue leading group at the scene of the accident. The injured were sent to Golmud People's Hospital for treatment at the first time. Despite all efforts, all four injured people died at 0: 20 on the 29th.
After the accident, Qinghai Salt Lake Industry Co., Ltd. reported to the relevant departments in time according to the provisions of relevant laws and regulations and related procedures. At the same time, emergency site disposal should be carried out to protect the site, and parking and site and surrounding environment analysis should be carried out in an orderly manner to avoid secondary accidents. After preliminary risk assessment and on-site monitoring, the accident did not cause damage to other production devices.
At present, the relevant departments have set up an accident investigation team and stationed at the scene to carry out accident investigation. The accident handling leading group and seven professional groups of Salt Lake Co., Ltd. are making every effort to deal with the aftermath, on-site disposal, public opinion response, accident investigation, hidden danger investigation and management in an orderly manner. Qinghai Salt Lake Industry Co., Ltd. said that it will disclose relevant information in a timely manner on the follow-up of the accident.
Qinghai Salt Lake Industry Co., Ltd. is a provincial large-scale listed state-owned enterprise managed by the State-owned Assets Supervision and Administration Commission of Qinghai Province, mainly engaged in the manufacture of potash fertilizer, chemical raw materials and chemical products. Located in Golmud City, Qinghai Province, the company is the largest potash fertilizer industrial production base and salt chemical industry base in China.
Acetylene carbon black is carbon black obtained by continuous pyrolysis of acetylene with purity above 99% obtained by decomposition of by-product gas in the pyrolysis process of calcium carbide method or naphtha (crude gasoline). After heating the inside of the reactor to the initial temperature of acetylene decomposition above 800℃, acetylene is introduced to start thermal decomposition. Because it is an exothermic reaction, the reaction can proceed automatically. In order to obtain stable quality, the reaction temperature should be kept at about 65438 0800℃. The temperature in the furnace can be controlled by the water cooling jacket of the outer cylinder of the reaction furnace. Acetylene carbon black, manganese dioxide and electrolyte are used as anode materials for manganese dry cells. Compared with furnace carbon black, its crystallization and secondary structure are more developed, so its conductivity and liquid absorption are better. Because there are few impurities such as heavy metals, the loss caused by self-discharge is small and the storage performance is better.
Acetylene black has the general properties of simple carbon.
Acetylene black is not flammable. It can burn at the ignition point of carbon, but it can't spontaneously ignite.