แสดงบทความที่มีป้ายกำกับ Equipment แสดงบทความทั้งหมด
แสดงบทความที่มีป้ายกำกับ Equipment แสดงบทความทั้งหมด

วันศุกร์ที่ 30 ธันวาคม พ.ศ. 2554

Types of Construction Equipment and Their Uses

Construction equipment range from the very heavy equipment to the portable and mobile lighter equipment, some of them with a precise description of their functions are detailed below.

Engineering equipment with a front bucket/shovel and a small backhoe in the rear combined with a tractor is known as backhoe loader. It is mostly used in small construction sites and in urban engineering such as fixing city roads.

A crawler, which is very powerful and attached with a blade, is called a bulldozer. Even though any heavy engineering vehicle is known as bulldozer, it is actually a tractor with a dozer blade.

Combat engineering vehicles are used for engineering work in the battlefield and for transporting sappers. They are mostly armoured vehicles.

A compact excavator is a wheeled or tracked vehicle with a backfill blade and swing boom. It is also known as mini excavator. The functions and movements of the machines are carried out by transferring hydraulic fluid. This makes a compact hydraulic excavator different from other construction equipment. Find more info at [http://www.construction-equipment4u.info]

To compact gravel, dirt, asphalt and concrete in construction work and road laying a road roller which is also known as roller-compactor would be used.

A motorized cultivator with a rotating blade to work in the soil is known as rotary tiller. They are either drawn behind a tractor or self-propelled.

A crane is a derrick or tower equipped with pulleys and cables for lowering and lifting materials. The cranes used in construction industry are mostly temporary structures.

Dragline excavation systems are heavy equipment mostly used in surface mining and civil engineering. The smaller type of dragline excavator is used for port and road construction. The larger type dragline excavator is used in strip-mining operations for coal extraction.

In the building industry, to make foundations, a drilling machine is used. It is also used in oil wells and water wells.

An excavator commonly known as a digger is an engineering vehicle, with a cab mounted on a rotating platform or pivot, and a backhoe on top of an undercarriage with wheels or tracks.
In untamed regions which are being reclaimed for construction, a feller buncher, a machine having an attachment, which fells trees, is used.

A forklift, lift truck or forklift truck is an industrial truck used to pick up and transport heavy material using steel forks under the material to be lifted. The most common usage of a forklift is to move materials stored on pallets.

A loader also known as a bucket loader, front-end loader, scoop loader, shovel, or front loader is a type of tractor using buckets, which can be tilted to lift and move material.
A paver is used to spread asphalt on roadways.

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วันอาทิตย์ที่ 7 มีนาคม พ.ศ. 2553

Oil Field Equipment

Oil field equipment can consist of many things. I would like to explain some of the largest oil field equipment. A land rig and an off shore rig and the difference between the two.
A drilling land rig is a equipment which creates holes (usually called boreholes) and/or shafts in the ground. Drilling land rigs can be massive structures housing equipment used to drill oil wells, or natural gas extraction wells. They sample sub-surface mineral deposits, test rock, soil and groundwater physical properties. Drilling land rigs can be mobile equipment mounted on trucks, tracks or trailers, or more permanent land not to be confused with marine-based structures (such as oil platforms, commonly called 'offshore oil rigs'). The term "rig" therefore generally refers to the complex of equipment that is used to penetrate the surface of the earth's crust. A drilling land rig would be used on shore.

Drilling land rigs can be:

o Small and portable, such as those used in mineral exploration drilling.

o Huge, capable of drilling through thousands of meters of the Earth's crust. Large "mud pumps" circulate drilling mud (slurry) through the drill bit and the casing, for cooling and removing the "cuttings" while a well is drilled.

Hoists in the rig can lift hundreds of tons of pipe. Other equipment can force acid or sand into reservoirs to facilitate extraction of the oil or mineral sample; and permanent living accommodation and catering for crews which may be more than a hundred.

Marine rigs may operate many hundreds of miles or kilometres offshore with infrequent crew rotation. An offshore platform, often referred to as an oil platform or oil rig, is a large structure used to house workers and machinery needed to drill wells in the ocean bed, extract oil and/or natural gas, process the produced fluids, and ship them to shore. Depending on the circumstances, the platform may be attached to the ocean floor, consist of an artificial island, or be floating.
Most offshore rigs are located on the continental shelf, though with advances in technology and increasing crude oil prices, drilling and production in deeper waters has become both feasible and economically viable. A typical offshore rig may have around thirty wellheads located on the platform and directional drilling allows reservoirs to be accessed at both different depths and at remote positions up to 5 miles (8 kilometres) from the platform.

Remote subsea wells may also be connected to a platform by flow lines and by umbilical connections; these subsea solutions may consist of single wells or of a manifold centre for multiple wells.
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