Deep Cone Paste
| 12:58 Feb 7, 2023 |
| English to German translations [PRO] Tech/Engineering - Mining & Minerals / Gems / Tailings, Absetzteiche | |||||||
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| 2 | Tiefenbett-Verdickung DCT (deep cone thickener) |
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Answers
1 hr confidence: 
| deep cone paste Tiefenbett-Verdickung DCT (deep cone thickener) Explanation: Paste thickened tailings backfills have undergone a rapid evolution from their first applications in the early 1990s, and with it the industry has seen significant advances in both the technology and the equipment that is needed for the production, transport and placement of paste. In the early years, the production of paste was largely based on ‘rules of thumb’ and industry experience with conventional thickening systems hence paste performance failures were common. Nowadays, the production of paste is based on a much improved understanding of the rheology of thickened tailings, and the behaviour of non-Newtonian slurries. This paper will walk through the advances in the science of ***paste thickening of tailings***, and the associated improvements in the equipment used for thickening, mixing, pumping and transport of these materials. 4.2 Thickening We could, and others have, fill many keynote addresses talking about the evolution of thickeners, flocculants, and underflow characteristics. In my view the evolution of the thickener has contributed the most to adoption of paste for backfilling. A large number of paste backfill systems today are based solely on paste thickened underflows. The beginnings of the modern thickener started in 1906 when John Dorr patented the first continuous thickener with a circular tank and a set of rakes. Since that beginning, the basic thickener design has seen significant advancements to increase throughput, and to push the operating limits in terms of solids concentrations and yield stresses. Some of the more significant improvements include flocculant chemistry, rake designs, feed wells and feed dilution, dewatering pickets, shear thinning, reinjection of underflow to improve bed movement, tank designs and tank geometries, and modern computerised instrumentation and control systems. Numerical modelling of the beds has resulted in significant performance improvements, and structural modelling of the tanks and rakes has allowed these facilities to reach today’s enormous sizes of 90 m diameter and more. Nowadays we have a range of thickeners designed to meet different needs. Conventional thickeners for thickening tailings, for the production of tailings slurries, typically have underflows with 50-55% solids and 20-30 Pa yield stress. High rate thickeners generally have an increased bed height to increase self−consolidation and produce underflows in the 55-60% solids range and 30-100 Pa yield stress. Paste thickeners have much deeper beds, hence the reference to ‘deep cone’ and ‘deep bed’, and are designed to produce an underflow material in the paste range of yield stresses (>100 Pa).Both high rate and paste thickeners have the capability of producing underflow in the paste range of yield stresses. D Stone: The evolution of paste for backfill https://papers.acg.uwa.edu.au/p/1404_0.3_Stone/ Images and structure drawing https://www.xinhaimineral.com/en/product_9_33.html Deep Bed™ Paste Thickener Overview https://www.westech-inc.com/products/paste-thickener-deep-be... Paste, or **deep cone thickening**, to increase refuse slurry specific gravity before the refuse slurry is deposited in the [...] nalco.com https://www.linguee.de/englisch-deutsch/uebersetzung/gravity... -------------------------------------------------- Note added at 1 óra (2023-02-07 14:14:33 GMT) -------------------------------------------------- Or, simply Verdickungsmittel (DCP)? |
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