November 18, 2018
November 14, 2018
November 10, 2018
Minimizing Fire and Explosion Hazards in dusty systems
Minimizing Fire and Explosion Hazards in Dusty Systems:
Having honest conversations about material handling hazards allow risks
to be properly addressed, thereby reducing fire and explosion threats.
November 6, 2018
November 2, 2018
12 Tips for Centrifugal Pump Safety
12 Tips for Centrifugal Pump Safety: Centrifugal pumps are used in industrial settings, and there are several steps that should be followed to ensure safe and efficient pump operation.
October 29, 2018
On April 6, 1994, a unit operator was conducting
rounds of the coker unit when he observed a leak coming from the
mechanical seal of the heavy gas oil pump of coker unit #1. The operator
decided to seek assistance; the head unit operator and six or seven
unit operators responded. The operators placed water and steam on the
leak to suppress the vapor from the seal. The head unit operator decided
to shut down the pump and transfer the product to the secondary pump.
As the operator shut down the primary pump, the mechanical seal blew,
causing a vapor cloud to generate from the seal. The operators continued
to put steam and water on the seal and isolated the pump from the pipe
line. The remaining product in the pipe line leading to the primary
heavy gas oil pump vaporized, leading to the dispersion of the vapor
cloud. The operators who responded were wearing bunker gear and several
wore emergency respirators. Those with respirators isolated the pump
from the pipe line by closing the suction and discharge valves. The
operators who were not wearing emergency respirators stationed
themselves upwind of the vapor cloud and put water on the cloud;
however, the wind changed direction several times, exposing unprotected
operators to vapors. Employees #1 and #2, two unprotected operators who
responded to incident, were brought to Hospital to
be treated for inhalation of hydrocarbons. Employee #1 was hospitalized.
Source: OSHA
Source: OSHA
October 24, 2018
Hexane Vapors Ignited By Static Electricity; Worker Burned
Employee #1 was standing at the exit end of a conveyor, peeling off a build up of hexane adhesive from the inside of a stainless steel dip tank. A static discharge of electricity, apparently generated by the peeling action, caused a flash fire. Employee #1 suffered second degree burns on the back of his hands and his upper chest and neck. The tank is 12 inches by 15 inches by 22 inches in size. The employee was pulling adhesive from the back side of the tank when the fire started. All the equipment in the area is grounded and bonded and approved for the location. The flash point for hexane is -23 degrees.
Source:OSHA
Source:OSHA
October 21, 2018
October 17, 2018
Explosion isolation flap valves provide reliable low-cost explosion protection
Explosion isolation flap valves provide reliable low-cost explosion protection: New explosion isolation flap valves are a reliable and cost-effective way to mitigate the risk of dust explosions propagating to upstream equipment.
October 14, 2018
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