01/26/2012

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Application Applying the principle of extrusion for aluminum formwork allows for the necessary structural rigidity. The use of wood for the manufacture of formwork due to its relatively low price. Predominantly for the manufacture of wooden elements used laminated wood. Speaking candidly Kenneth Feinberg told us the story. Glued elements have a low deformability and high strength. But the wood, as is known, also has a significant drawback - hygroscopicity. Wooden elements absorb water from the concrete, changing the size of their reduced their capacity and there is deflection. Educate yourself even more with thoughts from Richard Easton Matchmaker. If mechanical damage wooden formwork elements are not always amenable to rehabilitation, and hence, they require frequent replacement. To wear, often interchangeable (so-called consumables) elements using plywood, plywood and plastic. Modern formwork systems can be classified various criteria. By Application - formwork for walls, ceilings, columns, elevator shafts, etc. It should be understood that it is quite conventional division, as formwork system for walls and can afford to make column. Have also been developed and are multifunctional, versatile formwork. On design features can be shuttering frame and beamed. Frame and beam formwork is used for the construction of various structural elements: low-rise walls and tall buildings of various configurations, ceilings, columns, elevator shafts, etc. Formwork systems have also been developed for specific tasks: formwork circular wall with variable radius, formwork, shuttering the tunnel, single-sided formwork, and others consider in more detail certain types of formwork for walls. Frame formwork system. Frame formwork System includes: framed panels, retaining elements and details...
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Desulphurization Strip Install There are specialized units for extraction of water vapor, hydrocarbons and fluids from the gas desulphurization of gas. Adsorption units, which operate on silica gel, molecular sieve and activated carbon allow for these operations in one unit. Refrigeration units (stand-alone or in combination with absorption) can also be used to simultaneously perform operations serochistki. Stabilization installation desulfurization. Operate without irrigation rectification columns, do not need an external source of cold, so they are easy to apply in remote and arid areas. Most common in desulfurization were pneumatic plants operating on the principle of acceleration of the abrasive particles with compressed air. Plants operating under pressure, more compact, the reaction is carried out rec lower temperature, but in this case requires absolute integrity of equipment. If the extraction of a component of natural gas by means of a liquid, then the minimum possible amount of heat can significantly affect the maximum value extraction of the component. This particularly applies to processes, was designed to extract large amounts of ethane from natural gas. The bulk of the dust and other solids contained in the gas, it is easy extracted from it with any liquid. However, in practice there are two cases when the mechanical impurities trapped in the gas in the fishery, passed through two separators, glycol dehydration absorber setup, where there were four contact plates, and settled in the absorber installed desulphurization of gas. Fortunately, such cases are the exception. In the process of desulfurization of natural gas extracted from the H2S gas from a chemical reaction that is...

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