Refiner


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Refiner

 

(also disk refiner), in the pulp and paper industry, a device designed for continuous operation in grinding fibrous materials, principally cellulose. The fibrous mass is in the form of an aqueous suspension and enters the refiner intake between grinding disks. Grinding elements (blades) are located on the working surfaces of the disks. In refiners designed with two disks, only one disk may rotate or both may rotate in opposite directions; in refiners with three disks, only the center one rotates. The grinding elements are constructed of pig iron, steel, bronze, or ceramic or abrasive materials. The amount of fibrous matter in suspension varies from 2 to 30 percent by weight, depending on the type of refiner.

Refiners are produced with outputs up to 550 tons per 24 hours; their electric motors have power ratings up to 8 megawatts. Refiners are also used for preparing wood pulp from chips (seeDEFIBRATOR).

REFERENCE

Ivanov, S. N. Tekhnologiia bumagi, 2nd ed. Moscow, 1970.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
Mentioned in ?
References in periodicals archive ?
Summary: State-run Indian refiners announced a cut in petrol prices from Friday, mitigating a sharp increase a month ago that sparked public protests and anger among the government's coalition allies.
India oil firms cut petrol prices after protests
"Some refiners have cut back because they were sourcing oil from Libya and others because the margins are not good enough to justify.
Refiners slash output to save costs
Saudi Aramco is expanding its presence in Korea by acquiring stakes or forging business ties with domestic refiners, according to industry analysts Tuesday.
Saudi Aramco flexing muscle in Korea
This might encourage refiners to continue to produce diesel, in turn flooding the Asian market, a Singapore-based trader said.
Petron exports diesel in rare move - traders
There are around 600 to 700 gold refiners and polishers in Sarafa Bazar of Peshawar who are engage in this practice of processing gold by burning it in Nitric and Sulfuric acid,' informs Abdur Rehman, a goldsmith.
Environmentally harmful practice of 'gold processing' damaging people's health
DME will hold a roundtable for independent refiners in Shandong, China in mid-May to assist other local participants with the Exchange's registration process.
First independent Chinese refiner trades DME Oman crude oil
SK Innovation Co Ltd, which owns SK Energy Co Ltd, South Korea's largest refiner, said it is looking into ways to minimise position risks against falling crude prices.
Oil's slide a blow, not a boon to Asian refiners
Major industry players didn't welcome the discount stations at first, but they have changed their minds after seeing the data that said smaller refiners benefited from supplying oil to thrift gas stations.
S. Korean oil refiners vie to supply discount gas stations
Payment problems have already reduced the amount of oil MRPL bought from Iran this year: the refiner had a contract to buy 142,000 bpd of oil in 2011/12, but its only imported between 120,000 and 122,000 bpd, the sources said.
India's top Iranian oil buyer plans to cut imports
"The potential cut in crude oil imports from Iran, the fourth largest supplier of crude oil, would be credit negative to South Korea's refiners, as they would incur higher costs," said Mic Kang, vice president at Moody's.
Iranian Oil Cut to Hit Korean Refiners--Moody's

Encyclopedia browser ?
Full browser ?