Two workers died on the spot and nine others sustained burn injuries in a blast at a conveyor belt that took place due to a short circuit in Parry Sugars' refinery at Vakalapudi in Kakinada on Friday morning. The deceased have been identified as Rayudu Veera Venkata Satyanarayana of Uppada Kothapalli village and Veeramalla Rajeswara Rao of Vetlapalem village in …