Monthly Archives: June 2015
An oil rig refers to a large structure that is equipped with equipment and facilities to drill wells, identify, extract and process oil and natural gas and/or as a short-term storage facility. The oil rig industry comes with one of the greatest pay for its employees but on the other hand, it comes with great challenges and hardship. With the current oil rig industry hardships, you will be left wondering if it is worth the pay.
This industry operates some of the most sophisticated yet dangerous equipment and material. In this, the risk attached to this is high. Injuries and deaths have been realized in this industry though measures are being put in place to implement safety and reduce the hardship levels. Possible hazards include vehicle collision, caught-in/ caught-between, explosion and fires, falls, machine hazards, as well as confined spaces.
While this industry puts emphasis on use of safety equipment, not all of its employees are provided with the safety equipment. This makes it more difficult to minimize of the possible challenges. Safety equipment wears out but for many, getting a replacement becomes a problem as many oil rig destinations are not located around populated areas. Due to this, this also means that receiving the right medical aid is also a concern for many.
It is also evident that the environment is hostile thanks to extraction of volatile substances. This has led to fires, explosions, and injuries. The explosions are as a result of gas leaks which take time for the employees to identify and control.
Gaining access to basic needs and requirements in areas that are miles from civilizations makes it difficult for survival. Emergencies may not be addressed on time as the workforce may be at the platform as long as a given project is underway.
Hardship in the oil rig industry is yet to be addressed to fulfill workforce needs and wants while at the same time ensuring safety and security. Though the industry is developing and growing, it is evident that it needs to address workforce hardship.
A Sieve Bend Screen is also known as; parabolic screen, side hill screen, run down screen, gravity screen and DSM screen and is designed to separate liquids from solids. The sieve bend screen is a concave curved wire screen which is mounted on a frame. The openings of the screen are perpendicular to the flow. Curved screens have a greater capacity than a flat screen as force is exerted as material flows against the curved surface.
These screens are cross-flow screens and used in a variety of processes; food processing, waste water cleanup, corn wet milling, gold recovery, pulp and paper, surface water intakes, and coal preparation. The shape of the wires is slightly tilted so the leading edge is higher and increases the de-watering capacity.
Uses for the Sieve Bend Screens
Sieve Bend Screens are used to either dewater or classify slurry (a semi-liquid mixture usually made up of fine particles such as; manure, cement or other combined mix that needs separation). Gravity forces slurry over the inclined screen surface where the wires are perpendicular allowing the slicing away of slurry in layers. Larger particles continue down the screen with most of the liquid removed. The narrowness of the wires creates a sieve that controls the flow for separation efficiency.
The Dutch State was the first to adapt the sieve bend in mine developments so it is sometimes referred to as the DSM. They have been developed to be used in a variety of ways to filter urban and industrial waste treatment plants. In this process they greatly reduce the loads by improving the performance of the Clarifiers where the solid particulates are removed from the liquids.
Features of a Sieve Bend Screen:
- Space efficient
- Energy efficient
- Low maintenance
- Easy to replace screen
- Design is flexible
- Quiet operation
- * Sizing is accurate
A sieve bend screen requires no energy input making this system the most cost efficient process for the separation of any mixture of slurry.