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Analysis on the explosion accident of coal mine electric detonator in the sealing process of packaging workshop

Analysis on the explosion accident of coal mine electric detonator in the sealing process of packaging workshop

  • Categories:case study
  • Author:
  • Origin:
  • Time of issue:2019-04-18 10:12
  • Views:6

(Summary description)Thetimeoftheaccident:March20,1991   Accidentlocation:packingworkshopsealingprocess   Natureoftheaccident:liabilityaccident   Accidentcategory:gunpowderexplosion   Numberofcasualties:1death,2minorinjuries     AccidentProfile:Afterworkingat7:30onMarch20,1991,thepackagingteampersonnelenteredtheirrespectivepositions. ThesealingmachineroadXXandHaoXXareresponsibleforsealing.TheinspectorLiuXXisresponsibleforinspectingthepackagingqualityandthelacquersealscrew.From7:50onJuly30,sevenboxesofproducts(7000rounds)havebeenpackedintothewarehouse.Twoboxes(2000rounds)arepackedintheeastgateofthepackagingworkshopforstorage.Therearealsoeightboxes(8000rounds)ofunpackagedproductsplacedintheworkshoproomforwaitingforpackaging.Therearetwoboxesonthepackagingwaxingtable(2000).Hair)isimmersedinthepackaging,andthereisalsoaboxofproductssealedbyLuandHaoatthesametime. WhenHaoFengfinishedthethreewoodenscrewsononesideoftheproductboxandputdownthehanddrillandturnedtobendtheproductmanual,theroadwasbeingsealed,andanexplosionoccurred. Asaresult,thehead,armsandlegsofthesealingroadXXwereseverelywoundedanddiedafterbeingrescued.AnotherboxerHaoXXandtheinspectionworkerLiuXXwereslightlyinjured.   Analysisofthecause:Theexplosionaccidentwascausedbytheinconvenienceoftheoperator'sroadXXduringoperation.Duringtheprocessofsealingthescrew,thescrewwasnotscrewedintothewoodenframeofthepackage,butwastwistedintothedetonator,andthescrewwasincontactwiththescrew.Inthedetonator'signitionheadorinthedetonatorinthedetonator,therotatingfrictioncausesanexplosion.   Accidentlessonsandpreventivemeasures:   1.Strengthenthequalitymanagementofproductboxesandstrictlyinspectthefactory.Unqualifiedproductboxesmustnotbeused.   2.Undothetwistdrillforpackaging.Punchtheholebeforepacking.Afterpacking,useascrewdrivertoscrewthewoodtopreventthescrewfromenteringthebox.Asimilaraccidentoccurs.   3.Itisstrictlyforbiddentouseotherobjectstoscreworproductboxwhensealing.   4.Furtherimprovetheprocessandstrictprocessrequirementstoensuresafeoperation.   Thisarticlecomesfrom:ChinaCoalMineSafetyNetwork(www.mkaq.cn)Detailedreference:http://www.mkaq.cn/sgal/sgal/bpsg/2009/0425/1898.html

Analysis on the explosion accident of coal mine electric detonator in the sealing process of packaging workshop

(Summary description)Thetimeoftheaccident:March20,1991   Accidentlocation:packingworkshopsealingprocess   Natureoftheaccident:liabilityaccident   Accidentcategory:gunpowderexplosion   Numberofcasualties:1death,2minorinjuries     AccidentProfile:Afterworkingat7:30onMarch20,1991,thepackagingteampersonnelenteredtheirrespectivepositions. ThesealingmachineroadXXandHaoXXareresponsibleforsealing.TheinspectorLiuXXisresponsibleforinspectingthepackagingqualityandthelacquersealscrew.From7:50onJuly30,sevenboxesofproducts(7000rounds)havebeenpackedintothewarehouse.Twoboxes(2000rounds)arepackedintheeastgateofthepackagingworkshopforstorage.Therearealsoeightboxes(8000rounds)ofunpackagedproductsplacedintheworkshoproomforwaitingforpackaging.Therearetwoboxesonthepackagingwaxingtable(2000).Hair)isimmersedinthepackaging,andthereisalsoaboxofproductssealedbyLuandHaoatthesametime. WhenHaoFengfinishedthethreewoodenscrewsononesideoftheproductboxandputdownthehanddrillandturnedtobendtheproductmanual,theroadwasbeingsealed,andanexplosionoccurred. Asaresult,thehead,armsandlegsofthesealingroadXXwereseverelywoundedanddiedafterbeingrescued.AnotherboxerHaoXXandtheinspectionworkerLiuXXwereslightlyinjured.   Analysisofthecause:Theexplosionaccidentwascausedbytheinconvenienceoftheoperator'sroadXXduringoperation.Duringtheprocessofsealingthescrew,thescrewwasnotscrewedintothewoodenframeofthepackage,butwastwistedintothedetonator,andthescrewwasincontactwiththescrew.Inthedetonator'signitionheadorinthedetonatorinthedetonator,therotatingfrictioncausesanexplosion.   Accidentlessonsandpreventivemeasures:   1.Strengthenthequalitymanagementofproductboxesandstrictlyinspectthefactory.Unqualifiedproductboxesmustnotbeused.   2.Undothetwistdrillforpackaging.Punchtheholebeforepacking.Afterpacking,useascrewdrivertoscrewthewoodtopreventthescrewfromenteringthebox.Asimilaraccidentoccurs.   3.Itisstrictlyforbiddentouseotherobjectstoscreworproductboxwhensealing.   4.Furtherimprovetheprocessandstrictprocessrequirementstoensuresafeoperation.   Thisarticlecomesfrom:ChinaCoalMineSafetyNetwork(www.mkaq.cn)Detailedreference:http://www.mkaq.cn/sgal/sgal/bpsg/2009/0425/1898.html

  • Categories:case study
  • Author:
  • Origin:
  • Time of issue:2019-04-18 10:12
  • Views:6
Information

The time of the accident: March 20, 1991

 

  Accident location: packing workshop sealing process

 

  Nature of the accident: liability accident

 

  Accident category: gunpowder explosion

 

  Number of casualties: 1 death, 2 minor injuries

 

 

 

  Accident Profile: After working at 7:30 on March 20, 1991, the packaging team personnel entered their respective positions. The sealing machine road XX and Hao XX are responsible for sealing. The inspector Liu XX is responsible for inspecting the packaging quality and the lacquer seal screw. From 7:50 on July 30, seven boxes of products (7000 rounds) have been packed into the warehouse. Two boxes (2000 rounds) are packed in the east gate of the packaging workshop for storage. There are also eight boxes (8000 rounds) of unpackaged products placed in the workshop room for waiting for packaging. There are two boxes on the packaging waxing table (2000). Hair) is immersed in the packaging, and there is also a box of products sealed by Lu and Hao at the same time. When Hao Feng finished the three wooden screws on one side of the product box and put down the hand drill and turned to bend the product manual, the road was being sealed, and an explosion occurred. As a result, the head, arms and legs of the sealing road XX were severely wounded and died after being rescued. Another boxer Hao XX and the inspection worker Liu XX were slightly injured.

 

  Analysis of the cause: The explosion accident was caused by the inconvenience of the operator's road XX during operation. During the process of sealing the screw, the screw was not screwed into the wooden frame of the package, but was twisted into the detonator, and the screw was in contact with the screw. In the detonator's ignition head or in the detonator in the detonator, the rotating friction causes an explosion.

 

  Accident lessons and preventive measures:

 

  1. Strengthen the quality management of product boxes and strictly inspect the factory. Unqualified product boxes must not be used.

 

  2. Undo the twist drill for packaging. Punch the hole before packing. After packing, use a screwdriver to screw the wood to prevent the screw from entering the box. A similar accident occurs.

 

  3. It is strictly forbidden to use other objects to screw or product box when sealing.

 

  4. Further improve the process and strict process requirements to ensure safe operation.

 

  This article comes from: China Coal Mine Safety Network (www.mkaq.cn) Detailed reference: http://www.mkaq.cn/sgal/sgal/bpsg/2009/0425/1898.html

 

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