The Cone Scraper . Underflow Pumping. Pumping of dense underflows has always been a problem on thickeners that handle slurries such as metallurgical concentrates, potash or phosphate and the position of the pumps in relation to the discharge cone can be very critical.
Scraper Monroe Environmental's Primary Circular Clarifiers are designed to receive raw wastewater after it has been pre-screened to remove large objects and grit. This primary sedimentation tank will produce a homogeneous liquid capable of being treated biologically and a …
Jan 22, 2019· Deep cone thickener (DCT) is key equipment in cemented paste backfill (CPB) technology. However, rake blockage occurs frequently in DCT during the dewatering process of the unclassified tailings being thickened from dilute slurry to thickened tailings or paste. Rake blockage has disastrous effects on the CPB operation. In order to investigate the influencing factors of rake …
Optionally the units are equipped with surface sludge blades that transport floating sludge to a sludge cone. The floating sludge scraper blades are assembled below the bridge that rotates. The peripheral driven rotating sludge scrapers can be designed with siphon pumping (also referred to as airlift pumps) as option or with submersible pumps.
Thickeners, equipped with the patented spiral scrapers and angle rakes are a distinct improvement over all types of mechanical raking devices now in use. Specifiions and thickener rake design All Thickeners have the same general specifiions, varying only as to type of machine. ... basic design of thickeners cone. basic design of thickeners cone ...
View reliable Mining Thickener manufacturers on Made-in-China.com. This category presents Thickener, Zg Peripheral Transmission Mud Scraper, from China Mining Thickener suppliers to …
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thickener and to assess the possibility and extent of the repairs needed to ... There is some wear apparent below the deflector cone scraper. The thickness of the plate measured with ultrasonic device at the wear area is approximately 8 mm. This thickness is at the limit for the
Sep 08, 2015· With the common cone design setting the scraper in an angle of 8 ° ~ 15 °with the horizon in the bottom of the thickener, the slime is discharged by the cross-shaped scraper goes from outside to inside. The supporting modes of the center transmission thickening scraper includes center transmission with middle hanger and the center ...
High-efficiency thickener: The thickener is mainly composed of two parts: a round thickening tank and a rake scraper. The solid particles suspended in the slurry in the thickening tank settle under the action of gravity, and the upper part become s clear water to sep a rate the solid and liquid. The ore sludge deposited at the bottom of the ...
Mar 02, 2014· The rake arm rotates slowly with the scraper blades on the bottom to push the solids in the thickener to the deflector cone. The deflector cone is the cone shaped discharged located in the center of the thickener. Once the solids enter the deflector cone, they are removed by pumps, pumping the concentrated solid underflow to a conditioning tank.
Aug 05, 2020· Cemented paste backfill (CPB) can effectively eliminate the risk of dam break in goaf and tailings pond which used tailings waste. Deep cone thickener (DCT) is an efficient machine for the system of paste preparation, and the concentration of slurry at the bottom is high and distributed unevenly, which will cause too much partial resistance and failure of thickener.
Cone scrapers are bolted to the centre shaft to prevent plugging of bottom discharge cone. KARYASIDDHI has the expertise in providing the right Thickener for your environmental needs. Applications Steel Industry Blast Furnace, Electric Arc Furnace, BOF, etc Fertilizer Industry
High Rate Rake Thickeners. Filtaquip Conventional Rake Thickeners, ideal for large water flows, have a limited height and a large surface area. Equipped with a peripheral scraper bridge system, known as the rakes, scraping the thickened pulp to the centre underflow point at the underflow cone. Filtaquip offers bolted, as well as welded thickeners.
A circular thickener comprises a relatively shallow, open-top cylindrical tank with either a flat bottom or a bottom shaped in the form of an inverted cone (see Figures 1.2 and 1.3). The feed mixture is gently and continuously introduced to the feedwell in which exists a pool of settling suspension along with any additional coagulant or flocculant.
Sludge Thickening and Dewatering. Sludge thickening and dewatering is two important stages in treating sludge. Thickening commonly produces sludge solids concentrations between 15% and 20%, LZZG Deep Cone Thickener results in maximum water recovery, maximum underflow density, can help to save the downstream costs.
THICKENER. The DET21N Slurry Thickener is designed to be installed in circular enclosures. It is used to concentrate settled solids and clarify liquids. The slurry thickener essentially consists of a round tank with a tapered base and a slope towards that base. The mechanical units to pull the slurry towards the central cone down which it ...
column type conventional thickener drive cage bridge type conventional thickener cone scraper Conventional thickeners and clarifiers by Perumin Sep 02 2013 Conventional clarifierthickener Design Bridge type For smaller thickeners up to 30 40 m diameter the rakes and drive mechanism are supported on a bridge thickener cone scraper.
separation performance. The solids are collected in the sludge thickener and transported to the sludge cone with a low friction scraper system. The sludge can be discharged with the sludge pump for thickening or discharge. The Altec+ flotation unit is equipped with a sludge...
Download the State Point spreadsheet by clicking on this link:https://docs.google.com/uc?id=0BwTbFi_ZN3_nejVRZnJ6bTVRbzQ&export=download
The rakes slowly rotate, with scraper blades on the bottom, pushing solids in the thickener towards the cone shaped discharge loed in the center of the thickener. Once the solids enter the cone discharge, they are removed by pumps, pumping the concentrated solids underflow to the next process.
Rake thickeners are designed specifically to deal with high volumes of slurry. The integral scrapers aid transportation of material from the outskirts of the tank to the outlet, thus accelerating the removal of sludge from the thickener. FEATURES AND BENEFITS. • Produces sludge with 30 - 40% solids content. • Lower level feed in height.
The solids are collected in the sludge thickener and transported to the sludge cone with a low friction scraper system. The sludge can be discharged with the sludge pump for thickening or discharge. 2550 Boyce Plaza Rd, Ste 204, 2nd Flr, Pittsburgh, PA 15241
thickener can be supplied with a Metris addIQ control ... ANDRITZ DEEP-CONE SETTLER The ANDRITZ deep-cone settler is designed for heavy ... encompasses a unique underflow cylinder scraper to ensure sheer thinning of the underflow and prevent the underflow mud bed from solidifying
We claim: 1. A process for thickening waste water sludge issued from a clarifier for waste water, comprising the steps of: introducing fresh waste water sludge, issued from a clarifier, into a central upper part of a thickening tank of circular shape having a lower part having a bottom in the form of an upwardly opening cone and having scraper means rotatable at low speed in said lower part of ...
High-efficiency deep-cone thickener is a new product used in the process of solid-liquid separation technology currently. Because of its less investment, ... the tank bottom by rake-type mud scraper and discharged by the outlet, and the clean water overflows from the top edge of the thickening tank.
Ideal for small mining operations, our slurry thickeners are manufactured in sizes of up to to 16″ diameter using mild steel construction. Each has internal launder, feed-well and discharge cone. Help by a superstructure to hold its gear reducer drive and pipe shaft. The thickener's rake drive is a two-arm rake assembly with cone scraper.
Jun 01, 2016· The practice of thickening or clarification is usually carried out in decantation tanks employing gravity settling or sedimentation. These tanks are fitted with mechanical scrapers to collect and move the settled solids to the point of discharge, the clear overflow being collected and removed by means of peripheral launders.