Search results
Results From The WOW.Com Content Network
This is a mobile miniaturized version of the large stationary batch plant. They are used to provide ready mix concrete utilizing a continuous batching process or metered concrete system. The volumetric mobile mixer is a truck that holds sand, rock, cement, water, fiber, and some add mixtures and color depending on how the batch plant is outfitted.
A concrete plant, also known as a batch plant or batching plant or a concrete batching plant, is equipment that combines various ingredients to form concrete. Some of these inputs include water , air, admixtures , sand , aggregate ( rocks , gravel , etc.), fly ash , silica fume , slag , and cement .
S88, shorthand for ANSI/ISA88, is a standard addressing batch process control. It is a design philosophy for describing equipment and procedures. It is not a standard for software and is equally applicable to manual processes. It was approved by the ISA in 1995 and updated in 2010. Its original version was adopted by the IEC in 1997 as IEC 61512-1.
A public access database IEC 61355 DB [3] is available in order to facilitate the individuation of the correct code to be applied to a document The document kind classification code consists of three code-letters A1, A2, A3, with the prefix "&". A1 Letter code for technical area class; A2 Letter code for main class; A3 Letter code for sub-class
Provers are used to calibrate meters in-situ and are performed frequently; typically before, during, and after a batch transfer for metering assurance. A good example of this is a Lease Automatic Custody Transfer (LACT) unit in a crude oil production facility.
The volumetric mixer varies in capacity size up to 12 m 3 and has a production rate of around 60m 3 an hour depending on the mix design. Many volumetric concrete mixer manufacturers have innovated the mixer in capacity and design, as well as added features including color, multiple admixes, fiber systems, and the ability to do gunite or shotcrete.
ISO/IEC 17025 General requirements for the competence of testing and calibration laboratories is the main standard used by testing and calibration laboratories. In most countries, ISO/IEC 17025 is the standard for which most labs must hold accreditation in order to be deemed technically competent.
A batch can go through a series of steps in a large manufacturing process to make the final desired product. [ 1 ] [ 2 ] Batch production is used for many types of manufacturing that may need smaller amounts of production at a time to ensure specific quality standards or changes in the process.