Blinds installing

Temporary strainers and blinds installed Provisions for sampling... 

Opening/blinding permit—removing blinds, installing blinds, or opening vessels, lines, and equipment... 

The second problem concerns accidentally forgetting to remove blinds when the work is over. During a large turnaround, there may be hundreds of blinds installed in the system. As the maintenance work closes out, there is usually considerable pressure to get the plant up and running as quickly as possible. It is all too easy to overlook a blind, then, when the plant is started, it will be found that the blinded line cannot be operated. The removal of the blind at this time can be hazardous, particularly as there is likely to be a lot of management pressure to keep the start-up moving and process conditions may already mean that temperatures and pressures are high. 

When the PSV needs to be removed and worked on, the equipment the PSV is protecting will be shut in, both PSV isolation valves will be closed, the equipment will be depressurized, the PSV removed, and blinds installed on both open ends of the isolation valve flanges. Where 100% online capacity can be maintained while working on a parallel PSV, and the PSV can be safely isolated (risk assessment performed), shutting in the equipment, and depressurizing is not required. 

Vibration Amplitude and Frequency Speed and amplitude of vibration should be designed to convey the material properly and to prevent blinding of the cloth. They are somewhat dependent upon the size and weight of the material being handled and are related to the angle of installation and the type of screen surface. The object, of course, is to see that the feed is properly stratified for the most efficient separation. 

Sampling locations for the unit test should be readily and safely accessible. The sample gatherer should be able to easily access the sample point. An isolation valve should be installed at the location. If a blind is installed, this should be modified in advance of the test. The sample locations shown on the P IDs must be compared against the actual locations on the equipment. Experienced operators may provide insight into the suitability of the location in question. 

It would appear obvious for startup, and in some cases full-time operation. that a suction strainer or filter is mandatory. The reason for ilic strainer is to keep Junk and pipe scale out of the compressor. Fines from pipe scale and rust will make short work of the internal bore of a cylinder and are not all that good for the balance of the components. In some severe ca.ses, cylinders have been badly damaged in a matter of a few weeks. The strainer should be removable in service for cleaning, particularly when it is intended for permanent installation. Under all circumstances, provision must be made to monitor the condition of the strainer. Much frustration has been expended because a compressor overheated or lost capacity and no one knew if the strainer had fouled or blinded. 

In one site, the project team installing a DCS (Distributed Control System) carefully developed and tested techniques to make the displays clear for red-green color blind personnel (see discussion in 6.4). The displays were effective and were applauded by the operators. However, in subsequent DCS installation projects at the same site, different project teams made no provision to make displays visible to red-green color blind personnel. This inherently less safe condition was found during a design review at one unit and at the pre-start-up safety review for another unit. 

Elimination of the position of maintenance supervisor on the second and third shifts (this was a direct cause of the failure to install the blind flange)... 

A boiler had been shut down for the repair of a forced draft fan. A blind was not installed in the fuel gas line, nor apparently was a double block and bleed in the fuel line utilized. Gas leaked into the firebox during the repair period and was not removed. A severe explosion occurred during the attempt to light of. 

A formation fluid kick can be efficiently and safely controlled if the proper equipment is installed at the surface. One of several possible arrangements of pressure control equipment is shown in Figure 4-351. The blowout preventer (BOP) consists of a spherical preventer (Hydril), blind and pipe rams, and the drilling spool. 

Colors in a laboratory should be coordinated, just as in a home. If pre-finished work benches are to be installed, they might set the color scheme. While they are available in several colors or combination of colors, the choice is not unlimited. In one case, the laboratory operator was color blind, so his wife took over the job as decorator. First, she selected a two-color scheme for the work benches. Color chips in hand, she then chose a floor covering from a number of samples submitted. For the wall paint, she found a standard color of the recommended quality that harmonized with the cabinets. A few appropriate charts and a colorful cloth wall-hanging of pipes and valves completed the decor. The result received many favorable comments from visitors to the facility. 

Install the new window blinds, which arrived yesterday, in the 3rd floor Conference Room. 

With a newly installed precautionary blind in the overflow line, the hidden blind in the vent line, and no additional overpressure devices, the tank was destined to fail. As liquid was pumped into the vessel the inerts had no place to go and the tank was pressurized to destruction. To the best of everyone s knowledge and the evidence, this hard-to-detect blind may have been inserted over a year prior to the incident for a previous internal inspection of the acid tank. Obviously the mechanic(s) who removed the other blinds a year or so before and on this occasion did not notice this one. 

Maintenance workers frequently use blinds to provide a measure of safety on many assignments. The details of the blinding method are usually customized for each type job. If a vessel or a system requires significant blinding there should be a blinding list which is used as a checklist to install and remove them. When a Teflon blind is used with a steel blind, the Teflon sheet should be designed and cut with a protruding tab or ear. ... 

These polytetrafulorothylene (PTFE) pumps along with the associated plastic expansion joints were installed, because the sponsors were blinded by the advantages. No one took the time to question their suitability in handling flammable liquids. The plastic pumps are just not fire-safe. They are frail in a fierce hydrocarbon fire. The presence of a containment material, such as plastic, can jeopardize the built-in mechanical integrity of the surrounding equipment. 

At the time of writing, a new blinded mode software was being developed. This new version is based on different GC/MS operating software and will include additional security features such as unique installation numbers and check sum. Also, the need of AMDIS security level filters is being reviewed. 

The eyewitnesses have tried to persuade us that the crematoria ovens of Auschwitz and Birkenau were satanic contraptions operating above and beyond the realm of physical laws,6 not ordinary cremation facilities subject to the same laws of chemistry, physics and heat engineering as all other such installations. Historians have chosen to trust blindly in these witnesses, and in the process have let themselves get carried away into making entirely erroneous claims.7... 

Providing, installing, and removing all blinds required for flushing or operation. 

Menzies D, Popa J, Hanley JA, Rand T, and Milton DK (2003) Effect of ultraviolet germicidal lights installed in office ventilation systems on workers health and wellbeing Double-blind multiple crossover trial. Lancet 362 1785-1791. 

April 30, 2000— A maintenance man just happens to walk past the Cyclone Ash Bin Enclosure of the Deactivation Furnace (DFS) and notices smoke, heat and a bulged out door. There is a fire going on that no one had detected. The fire ignites and decomposes the charcoal in the filter system of the Ash Bin and would have entered the filter banks of the MDB if it hadn t been discovered by a worker out for a walk. The fire was precipitated when the blind flange was installed in preparation for an entry into the DFS to clear a jam in the Heated Discharge Conveyor. 

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