On March 21 14 when 48 minutes, network of Chinese earthquake station delivered two small gain suddenly, monitor automatically around county of noisy water of Jiangsu salt town produced 2.2 class, 3 class to control an earthquake, focus deepness is 0 kilometre. Subsequently information is confirmed, this is saline town noisy water appropriate chemical plant produced Home Chen Gang Tianjia to explode.
Disclose according to 119 operators, what produce explosion this is unit of production of the one office inside this factory, explosive material is benzene. Up to 18:30, the spot still has bright fire burning.
The possibility that the workshop explodes has two kinds
Does benzene explode but does can compare an earthquake? "Although be volatile,say benzene normally very strong material, but of so won't easy explosion. " an expert that pursues safe environmental protection for a long time says when accepting special report of reporter of daily of science and technology.
The chemical structural formula of benzene is C6H6, boiling point 80 ℃ , spontaneous combustion temperature 560 ℃ . As a kind of petro-chemical basic raw material, still belong to a kind of carcinogenic substance.
Of limited company of chemical industry of Jiangsu Tian Jiayi industrial and commercial register information to show, what its belong to an industry to be chemical raw material and chemical products manufacturing industry. Scope of operations is armour of a hydroxyl benzoic acid, benzene ether, right benzene of chloridize of butyl of father's younger brother, chloric Dai Shuding alkyl, benzene benzene of 2 amine, adjacent is 2 amine, right benzene the ethylbenzene such as 2 amine kind, product of organic chemical combination.
Spot monitoring picture
"From explosive spot video, and the company of chemical industry of Jiangsu Tian Jiayi that national security superintends total bureau general office to ever was released has problem of 13 safe hidden trouble preliminary judgement, this the accident may be the operation in producing a course undeserved or conduit jams cause. " this expert says.
Superintend total bureau general office to was released on Feburary 8, 2018 according to national security " the case that national security superintends total bureau general office to rectify and reform problem of safe hidden trouble about supervising and urge " , in concerning detailed list of problem of safe hidden trouble among them, limited company of chemical industry of Jiangsu Tian Jiayi has 13 problems. Include main controller to check qualification without safe knowledge and administrative ability; Appearance is special work staff is only 1 person obtains evidence, cannot satisfy safe production to work to need actually; Management of get angry operation is non-standard, manufacturing unit operating rules is not perfect, lack benzene canister area operating rules and engineering technology index; Spot management is poor, run risk a leakage more etc.
This expert expresses, the worker of a gleam of of enterprise of very much now chemical industry is peasant worker worker, lack enough operation skill and safe consciousness, the enterprise is thrown again, groom insufficient, of safe supervisory system move normally, the normative requirement of instrument appearance when be being operated, hard to avoid has non-standard place, the likelihood was caused in the workshop " for the first time " the on fire of small area.
According to judgement, the possibility that the workshop can explode has at 2 o'clock:
1, in manufacturing technology, toluene is met in reaction process eduction is hydric (H2) , methane (CH4) can burn gas, because having firm demand to exit, need to cool proper temperature, can bring about the knot inside conduit otherwise anxious, if control and operation are undeserved,cause explosion with respect to the likelihood.
2, there is environmental protection establishment in producing segment, namely volatile organic matter (VOCs) processing system, especially off-gas treatment system (RTO) also have firm demand to tail gas chroma, if tail gas chroma passes to also can have the possibility that produces explosion high, in view of the uncertainty that produces segment, what will naturally cause explosion 2 times is likely.
"Once bring,fire has in the workshop, flame can spread, enter coal tub area to cause next ' the 2nd ' massive explosion. Nevertheless, if the enterprise produces the word with equipment standard, workshop, conduit and coal tub area can install relief valve, resemble the liquefacient and gas jar that uses in the home, if hearth on fire, relief valve can rise to cut off action, avoid flame to enter liquefacient canister from cop, cause explosion. " this expert says, to chemical enterprise, if produce tubal net to jam, burst, it is very dangerous. Accordingly, the country asks to establish mechanism of check of make one's rounds, once be in charge of a net to wait,produce all sorts of problems, wait with respect to unbalance of meeting occurrence pressure, can show on instrument appearance, the enterprise can be adjusted in time and repair.
This second explosion factory violates condemnatory information in the environment in public record (2015-2018)
Superintend total bureau file according to national security, the safe hidden trouble of limited company of chemical industry of Jiangsu Tian Jiayi still includes not to have itinerate censorship, do not have specific requirement to check of make one's rounds; It is great and dangerous to make 2 forms the benzene canister area of the source, methanol canister area did not install ministry of coal tub root to break a powerful person closely to wait agog.
Explosion may cause chemical leak
Harm local environment
Zoology environment ministry expresses, area of garden of chemical industry of harbor of know Chen Jia produces explosive accident, start lash-up quickly already to answer a program. Di Qing of undersecretary of zoology environment ministry already headed a working group urgent drive field of the discovery that attend an affair, guidance does work of good environment lash-up.
Doctoral Sun Yafei says chemistry of university of popular science author, Tsinghua, at present the accident still is in processing, but it is good to have need pays close attention to strictly and a few consequences are done in time relevant beforehand case.
Above all, the leak that explosion causes, can cause relevant stock leak. Benzene, to benzene the material such as 2 amine is after leak, possible meeting causes a harm to local fountainhead, this is the issue that needs attention most at present.
In addition, the boiling point of benzene is low, volatilize after gas, can stimulate eye, skin and respiratory tract, cause giddy, tired to sleep, have a headache, disgusting, breath eye of short, skin is aglow, serious when mind is not clear. If be in personally the spot, had better wear defend take and safety glove, wear veil at the same time. If misfortune is inspiratory or contact, need contacts fresh air as soon as possible, take off contaminative dress, rinse the skin or shower with a large number of water.
"Compare logical deliverance way, be local as far as possible migratory to accident dot the area beyond 10 kilometers, avoid to suffer poisonous airy to harm. Meanwhile, prepare clean water, before local contaminant is cleared, do not want drinkable surface water. " Sun Yafei says.
Newest circumstance
Up to 19: 00, affirm the accident already caused death 6 people, injure 30 people again
Release according to @ salt city, end 19: 00, affirm the accident already caused death 6 people, injure 30 people again, additionally the ministry divides flesh wound of group of numerous different level. Current, the spot comes to help to still be in proceed, cure defends a branch to be in the wounded of main bring a patient out of danger, environmental protection branch is undertaking an environment monitor. Accident reason is being investigated. Follow-up circumstance will be released in time.
Up to afternoon 17 when, already rescued 31 people
Afternoon, chemical plant of Tian Jiayi of area of garden of chemical industry of harbor of Chen Jia of county of noisy water of town of Jiangsu province salt produces explosion. After receiving a reply, lash-up government department starts lash-up to answer instantly. Up to afternoon 17 when, rescuing force of present fire fighting already rescued 31 to get hurt personnel.
Explosion sends child of part of around nursery school to get hurt
Explosion is right of area of garden of chemical industry of Home Chen harbor damage bigger. How many the person is stranded or stop after all the spot still is waited for check. And periphery is nodded in explosive ground, the glazing of many buildings is broken by shake, a few cars that park around also are damaged serious.
After explosive happening, CCTV reporter is driven quickly toward accident scene. According to the news that the reporter knows at present, there is much place near explosive area uptown with the school, among them a nursery school discovers a linear distance from the thing only 1.1 kilometers, explosion has brought about partial child to get hurt, local medical establishment is clutching the person that cure is hurt.
Spot rescuer reminds, because explosion produces smother, the spot has thorn nose taste. Because the spot has wind, no matter be a rescuer,still be the dweller around, do not want the ahull area in smother as far as possible.
Hall of environment of Jiangsu province zoology already was started answer a program
