Contact Us

(PDF) THICKENER DESIGN, CONTROL AND

Thickener design configuration s usually consider the high rate or paste thickener options, with a tradeoff between capital cost and process performance. Design s that assume a

Theory and Application of Thickener Design

2016-3-4  design calculations to determine the required thickener area, the most important design parameter, and ultimately the maximum steady state underflow concentration that is possible for a given solids throughput. In addition, the capital cost ofa thickener will be dependent on the calculated required settling area. Therefore,

Theory and application of thickener design

1991-3-1  An important implication of these results relates to thickener design and the determination of settling area. If the design underflow concentration is 300kg/m3 for a thickener which is to be fed at a volumetric rate of 4m3/s and at a feed concentration of 5 kg/m3, a significant difference in the calculated vessel diameters using the three flux curve methods is obtained, as shown in Table 1.

[PDF] DESIGN OF ' THICKENER CIRCUITS Semantic

DESIGN OF ' THICKENER CIRCUITS. Introduction Feed dilution or solids-liquid weight The English word "sedimentation" ratio is derived from the Latin verb "sedere" Size and shape of the particulate meaning to sink down. As a mineral solids processing unit operation, sedimentaSpecific gravity differential between tion has been defined as the

Gravity Thickener Design Example Wastewater

2020-8-6  FIG. 7.46.2 Gravity thickener design data plots. Data plot procedure: 1. Conduct settling tests at various initial solids concentrations (a through d in panel A), covering the range of expected thickener influent solids concentrations; 2.

Improve Clarifier and Thickener Design and Operation

Design Procedure The thickener area is also required for this calculation. Guess the thickener area for the first iteration. Several iterations of area may be required to achieve a practical thickener size and pumping rate. For a circular thickener with a 15.24 m (50 f t) dia.: A= Pi r 2 = 182.4 m 2 (7)

How to Size a Thickener Mineral Processing &

2016-3-8  Thickener area required is then cal­culated by applying above determined data in the following formula: A = 1.333 (F D)/R A = Thickener area in square feet per ton of dry solids thickened in 24 hours. F = Initial density (Parts Water to Sol­ids by weight).

thickeners & clarifiers MIP Process Corp

2012-2-13  tHiCkener design MIP Thickeners and Clarifiers are designed to operate continuously for 24 hours per day. Process selections are based on test work coupled with our vast experience in the field of thickening. It is our belief that a thickener should not be designed on the limit since metallurgical operations are dynamic.

CHAPTER 3 SLUDGE THICKENING Mimoza

2012-3-22  Similar to the digesters, there are two design approaches in thickeners too: 1. Design based on experience. 2. Design based on Iaboratory data. 1. Design based on experience Solids throughput is an important criterion in the design of thickeners. The design is mostly based on the solids flux, i.e. kg solids/h/m2. Typical flux values are given in Table 2.

4 x Flowrate 4 x 200 π Riserate MIP Process

2015-7-1  Therefore, for our 10m thickener, P = 2 x TT x 0.21 x 36 000 60 x 0.5 x 1 000 N = Actual Gearbox output speed rpm T = Trip torque (Nm) E = Overall efficiency = 0.5 P

Data analysis of a paste thickener

The data set used for data analysis contains data from both of Yara’s paste thickeners, but after discussions with plant experts the data analysis was limited to Thickener 1. The whole data set contained altogether 73 measurements from February 2017 to February 2018. The frequency of measurements wasone per minute.

[PDF] DESIGN OF ' THICKENER CIRCUITS Semantic

Introduction Feed dilution or solids-liquid weight The English word "sedimentation" ratio is derived from the Latin verb "sedere" Size and shape of the particulate meaning to sink down. As a mineral solids processing unit operation, sedimentaSpecific gravity differential between tion has been defined as the separation the solids and liquid phases of a suspension into a supernatant presence of

Critical review of thickener design methods

In this chapter we analyze different methods of thickener design that have been proposed in the literature, in the light of their physical foundations. We distinguish three types of methods: (1) those based on the macroscopic balances, (2) those based on kinematical models and (3) those based on dynamical models.

(PDF) Software for the design and simulation of

The present work aimed to find the appropriate scale-up factor for bed depth to design paste thickener for copper tailings, using a lab glass cylinder and an operating pilot column.

Thickener performance variability: underflow solids

The analysis of the data shows that the actual performance of the thickener can be significantly different from what is usually considered at the design stage. An example is presented to show the impacts of thickener performance variability on tailings transport system

Paste Thickener TON Outotec

Design tools. Our application specific design of the thickener begins with the use of design methods such as Discrete Element Modelling (DEM) to examine solid particle movement within the thickener, and Finite Element Analysis (FEA) for structural steel design.

CHAPTER 3 SLUDGE THICKENING Mimoza

2012-3-22  The design involves selecting a typical solids flux and calculating the required surface area by dividing the anticipated solids feed by the flux [3]. Area of the thickener: 2. Design based on Iaboratory data First Approach: It is the best technique if the Iaboratory data is available. Typical test is done by using a 1000mL-graduated cylinder.

4 x Flowrate 4 x 200 π Riserate MIP Process

2015-7-1  MIP Thickener Design The following is a short cut to designing your own thickener: (a) Size of Thickener As a first stab we can either use the thickener flux (m. 2 /tpd) or the rise rate, depending if solids loading is the dominant (eg.

SOLUBLE METAL RECOVERY IMPROVEMENT USING HIGH

2009-8-26  Data from laboratory thickener simulations was used to simulate various CCD design options. The CCD circuit design for Ruashi is shown in Figure 6 below. The CCD simulations calculate soluble metal recoveries for changes in the most important variables affecting CCD

CHAPTER 6: DESIGN AND CONSTRUCTION OF SLUDGE

2017-5-30  CHAPTER 6: DESIGN AND CONSTRUCTION OF SLUDGE TREATMENT FACILITIES Thus, anaerobic digestion has its importance. The solids recovery rate varies at each stage of sludge treatment and is shown in Table 6.3. Table 6.3 Example of solids recovery rate in each treatment stage Source: Guideline and Manual for Planning and Design in Japan, JSWA, 2009

Data analysis of a paste thickener

The data set used for data analysis contains data from both of Yara’s paste thickeners, but after discussions with plant experts the data analysis was limited to Thickener 1. The whole data set contained altogether 73 measurements from February 2017 to February 2018. The frequency of measurements wasone per minute.

Thickener design methods pdf BitBin

2017-11-30  Design of gravity thickener is the concern of this chapter. 20.2 Methods of Thickener Design. 20.2.1 Coe and Clevenger's Method (1916). Coe and Clevenger Design Methods.

THICKENER DESIGN particles.uk

2015-4-13  THICKENER DESIGN A continuous thickener is to be designed to deal with the effluent from the last question. It will treat 1000 m3 per day of suspension fed at 3% v/v solids concentration and is to discharge underflow at 13.8% v/v solids. Use the settling curve and the following relation:

Gravity Thickener Design Example Wastewater

2020-8-6  This sludge continuously enters the thickener, and the thickened sludge is continuously withdrawn at a concentration of 21 gm/l (1.302 lb/ft3). The G L is determined from data plots (see Figure 7.46.2) 0.52 lb/ft2/hr. The volume of sludge to be concentrated is 5200 gph (693.3 ft3/hr). The required. FIG. 7.46.2 Gravity thickener design data plots.

Critical review of thickener design methods

In this chapter we analyze different methods of thickener design that have been proposed in the literature, in the light of their physical foundations. We distinguish three types of methods: (1) those based on the macroscopic balances, (2) those based on kinematical models and (3) those based on dynamical models.

Investigation and Design of a Picket Fence Thickener

2021-4-7  Design based on Laboratory Data; Design based on Calculations; Design based on Industry Construction Standards and Methods; Design based on experience is based around Solid Flux. Solid flux is the Settling velocity multiplied by the Solids Concentration. The area of the thickener is then found by dividing the Anticipated Solids Feed by the flux.

Issue 29 October 2011 Oppgtimising thickener design

2017-6-27  Site risk is also significantly reduced with a fully bolted thickener design. No hot work is required at site, all weights are known and all rigging is performed from permanent lifting lugs or shackles through flange holes. There is a major reduction in the amount of confined space work and also the amount of time spent Mill supplier data:

thickeners & clarifiers MIP Process Corp

2012-2-13  available. Thickener tanks, rakes and feedwell’s are custom designed, based on the feed conditions and raking capacity. A retrofit service is offered to enhance performance of existing thickeners and clarifiers. tHiCkener design MIP Thickeners and Clarifiers are designed to operate continuously for 24 hours per day.

Chapter 5 Sludge treatment Islamic University of Gaza

2011-9-10  0Design a gravity thickener to treat a combined primary and activated sludge. The following data is given:- Primary sludge:- 500 /,1100,5% 3 3 S m kg QP m d SL Secondary sludge (activated sludge):- 150 /,1040,1% 3 3 S m kg Qs m d SL Thickener design criteria:- LS = solids loading rate = 50 kg/m2.d (assumed)

CHAPTER 6: DESIGN AND CONSTRUCTION OF SLUDGE

2017-5-30  CHAPTER 6: DESIGN AND CONSTRUCTION OF SLUDGE TREATMENT FACILITIES Thus, anaerobic digestion has its importance. The solids recovery rate varies at each stage of sludge treatment and is shown in Table 6.3. Table 6.3 Example of solids recovery rate in each treatment stage Source: Guideline and Manual for Planning and Design in Japan, JSWA, 2009