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measuring the level of thickener bed
Sludge Blanket Level Measurement
Sludge blanket level measurement is the technique of measuring the boundary between two material densities e.g. water and a slightly higher density sludge.successfully in a complex application with sludges from different processes that gave variable composition going into thickeners.
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Thickener optimization to reduce production costs
In the thickener process there are many critical key performance indicators that show how the process is runningall of which need to be measured accurately and reliably. Hydraulic pressure, bed height and bed mass are some of the critical measuring points, as well as underflow density, underflow rate, overflow clarity and dry solids feed rate.
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Automatic Sludge Blanket Level DetectorMarkland
Measure, monitor and control the sludge bed depth. In diverse clarification processes: silt or biosolids in primary and secondary sludge, backwash sludge from sand or membrane filters, resin beds in intake water softeners, settled mud levels in tanks, settled fly ash from scrubbers, and more. Meet the needs of your unique application
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Conventional ThickenersSolid Liquid Separation
For bridge and column type thickeners with tanks that are mounted on ground level the access to the slurry pumps is trough a tunnel. For very large column type thickeners the column is constructed as a caisson that is submerged in the slurry so that the pumps are housed at the bottom of the chamber and deliver the underflow upwards.
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Improving thickener bed density by ultrasonic treatment
It is found that when a moderate level of ultrasonic energy 2.01 W/L, which will not disperse the settled bed in thickener but enough to open the closed network structure, is delivered to the transition settling zone for 2.5 min, the bed density in a lab bench top thickener improves from 33.72 wt.% to 37.48 wt.%, which is an 11% improvement
Inquire NowAdvanced Thickener ControlOutotec
In most thickeners it is possible to check the efficiency of flocculation through sample observation by sampling the flocculated slurry from the feed well. Figure 1. Principle of advanced thickener control. UNDERFLOW CONTROL. Thickener underflow density is a function of the solids ability to settle and the residence time in the thickener.
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Optimising performance of bed level thickenersPACE
Dec 19, 2008· A more robust solution is the buoyancy based electromechanical system, where a sensing weight is lowered on a measuring tape into the thickener to detect the level of the dense bed underwater. Typically the sensing weight is a lightweight hollow container filled with the bed level material such that when it is lowered, it floats on the bed, and at that point the bed level can be
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Level Measurement Mining, Level Measurement Water, Sonar
Application: To control the compact bed level and monitor the lighter floc mud layer interface in the thickener. Paste Thickeners Application : To measure the compact bed and floc interface for optimizing the thickener.
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Level Measurement Mining, Level Measurement Water, Sonar
Application: To control the compact bed level and monitor the lighter floc mud layer interface in the thickener. Paste Thickeners Application : To measure the compact bed and floc interface for optimizing the thickener.
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index [clarometer.com]
Total Thickener Control. Bed Level measurement. Tailings Dewatering. High temperature process sampling. Automatic cleaning. Clarity wedges. Sample scoops. Scale probes. Our equipment is used internationally in a broad range of coal, gold, copper, iron ore, aluminium, zinc, uranium, and heavy mineral sand applications. The entire range is
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Optimising thickener efficiencySustainability Matters
If only bedlevel measurement is required, then the buoyancy principle is more cost effective. The buoyancy based electromechanical system Figure1B uses a sensing weight which is lowered on a measuring tape into the thickener to detect the bed level. Typically, the sensing weight is a light, hollow container filled with the bed
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Clarifier Sludge JudgeEnvironmental leverage Inc
One is to thicken the solids and then settle them out. The second is to produce a clear effluent off the settled solids.Using the Sludge Judge as a way to measure depth of bed . What is a sludge judge or core sampler?When the unit has reached the bottom of the clarifier & the liquid level equilibrated at surface level, tug on the
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Bed Level DetectorRoyce Water Technologies, Australia
The ENV100 Ultrasonic Sludge Blanket Level Meter, utilises enhanced ultrasonic technology to measure the sludge interface level in various types of clarifiers, settling tanks and thickeners with superior accuracy and reliability.
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Clarifier Sludge JudgeEnvironmental leverage Inc
One is to thicken the solids and then settle them out. The second is to produce a clear effluent off the settled solids.Using the Sludge Judge as a way to measure depth of bed . What is a sludge judge or core sampler?When the unit has reached the bottom of the clarifier & the liquid level equilibrated at surface level, tug on the
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Beginners Guide to ThickenersOutotec
BED LEVEL Bed level is a frequently installed instrument and can be installed and serviced during normal thickener operation. Instruments measure the height of the interface between thickened slurry at the bottom of the thickener and the clarified liquor at the top.
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SmartDiverMud Diver, Sludge Level Measurement, Sludge
The Smart Diver is a ruggedised mud diver that provides measurement of mud levels, settling zones and overflow clarity in thickeners, clarifiers, washers and decanters. Tank profiling suspended solids vs depth is also provided, as it is specific gravity profiling and bed level measurement. For more information call +61 3 9786 1711.
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Sludge Finder 2Sludge Blanket Level Detector
Maintenancefree and reliable continuous sludge blanket level measurement. Used in thousands of applications worldwide for detecting sludge blanket levels in primary, secondary, tertiary settlement tanks either with stationary or travelling bridges, clarifiers, gravity thickeners or
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How to Check Soil Moisture With a ChopstickHome Guides
Measuring the water level of household plants and garden beds is not difficult. You dont need special machinery or tools to quickly ascertain the moisture level. To measure the moisture in
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Automatic Sludge Blanket Level DetectorMarkland
Measure, monitor and control the sludge bed depth. In diverse clarification processes: silt or biosolids in primary and secondary sludge, backwash sludge from sand or membrane filters, resin beds in intake water softeners, settled mud levels in tanks, settled fly ash from scrubbers, and more. Meet the needs of your unique application
Inquire Now
Measuring Settling Rates and Calculating Thickener Capacity
The required depth of the thickener may be ascertained by computing the capacity of the thickening zone to contain a supply of solids equal to the total capacity of the tank for the number of hours required to thicken the pulp to the density required in the discharge, and to this depth adding an allowance for the lost space due to the pitch of
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Optimising thickener efficiencySustainability Matters
Depending on the application conditions, different techniques are employed to determine a thickeners bed level: Theoretical bed level based on the calculation of the average density of a constant height using a hydrostatic pressure Submerged ultrasound sludge blanket transducer to sense
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Sludge level sensors and transmitters for sedimentation
To measure sludge level where clogging and fouling can occur primary and secondary clarifiers, sludge tanks, thickeners, etc., we recommend sensors with a wiper. For sludge level measurement in a secondary clarifier that has a surface skimmer or in clear water sedimentation tanks, you can use a standard sludge level detector.
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Tailings Thickener Bed Level ControlHawk Measure
ORCA Bed Level System. The ORCA Sonar series will measure up to two density interfaces simultaneously, either bed level or RAS blanket and floc/fluff layer or clarity of water, using the new ORCA Sonar hardware.
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Sonar Bed Level Measurement
The ORCA Sonar Bed Level transducer emits a high powered acoustic pulse, which is reflected from the interface density selected. The reflected signal is processed using specially developed software algorithms, that eliminate lighter floating densities and stratified layers, allowing measurement of RAS or BED levels.
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Sludge level sensors and transmitters for sedimentation
To measure sludge level where clogging and fouling can occur primary and secondary clarifiers, sludge tanks, thickeners, etc., we recommend sensors with a wiper. For sludge level measurement in a secondary clarifier that has a surface skimmer or in clear water sedimentation tanks, you can use a standard sludge level detector.
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Calculation of thickener area and depth based on the data
Jan 01, 1985· THE THICKENER DEPTH The depth of thickener can be evaluated from the relation: V Il~ = K1 _E K2 where K1 and K2 are coefficients dependent on thickener construction, for example K~ = 1.75 and K2 = 1.5 / 3 m[1]. The required volume V, in eqn 16 for the compression zone equals the sum of the volume occupied by the solids and the volume occupied
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ThickeningResource Book
level if it is sufficiently flocculated to produce the desired clarity and the underflow density. The increase in flocculation efficiency realised in high rate thickeners may increase in a bulk settling rate 2 to 10 times over that obtained in a conventional thickener, thus reducing the
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Endress+Hauser releases new heavyduty buoyancy
A more robust solution is the buoyancy based electromechanical system, where a sensing weight is lowered on a measuring tape into the thickener to detect the level of the dense bed underwater. Typically the sensing weight is a lightweight hollow container filled with the bed level material such that when it is lowered, it floats on the bed, and
Inquire NowData SheetThermoKinetics Measurement and Control
measurement of RAS or BED levels. It can be calibrated to measure lighter densities like FLOC or one of theThickeners and DAFBed level and clarity of water. Sequential Batch ReactorsBlanket monitoring floating sonar. LagoonsBed sludge level.
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Developing MudMax for Paste Thickener BedLevel Measurement
Numerous methods have been employed to achieve reliable bedlevel measurement, including bed pressure, ultrasonic, capacitance, nuclear, vibrating probes, divers, and floats to name just a few. They are typically limited to measuring the level at one location in the thickener and they range from being very expensive to reasonably affordable.
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Instrumentation and Control of Sedimentation Equipment
Some of the process variables that are commonly monitored on a thickener are torque, rake height, bed level, bed pressure, feed rate and density, underflow rate and density, settling rate, and overflow turbidity. Many of these are easily measured, while some can be difficult.
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Paste thickener bed level measurementEnvironmental XPRT
Numerous methods have been employed to achieve reliable bed level measurement including bed pressure, ultrasonic, capacitance, nuclear, vibrating probes, divers and floats to name a few. They are typically limited to measuring the level at one location in the thickener and they range from being very expensive to reasonably affordable.
Inquire Now
Thickener optimization to reduce production costs
In the thickener process there are many critical key performance indicators that show how the process is runningall of which need to be measured accurately and reliably. Hydraulic pressure, bed height and bed mass are some of the critical measuring points, as well as underflow density, underflow rate, overflow clarity and dry solids feed rate.
Inquire Now
Sludge Finder 2Sludge Blanket Level Detector
Maintenancefree and reliable continuous sludge blanket level measurement. Used in thousands of applications worldwide for detecting sludge blanket levels in primary, secondary, tertiary settlement tanks either with stationary or travelling bridges, clarifiers, gravity thickeners or
Inquire Now
Measuring Settling Rates and Calculating Thickener Capacity
The required depth of the thickener may be ascertained by computing the capacity of the thickening zone to contain a supply of solids equal to the total capacity of the tank for the number of hours required to thicken the pulp to the density required in the discharge, and to this depth adding an allowance for the lost space due to the pitch of the drag in the thickener; also from 1½ to 2½ ft. for depth of feed and a
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Sonar Bed Level Measurement
The ORCA Sonar Bed Level transducer emits a high powered acoustic pulse, which is reflected from the interface density selected. The reflected signal is processed using specially developed software algorithms, that eliminate lighter floating densities and stratified layers, allowing measurement of RAS or BED levels.
Inquire NowBed level, Density and Solids: Measurement applications in
Jan 17, 2020· Rhosonics gives an overview of measurement applications in the thickening process. Endusers in the mineral processing industry are striving for optimal thickener operation, which results in
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Thickener Level Controller SludgeThickening, Filtering
Level control in thickeners helps to keep the bed level on the desired level to achieve maximum water recovery and also avoid to increase the turbidity of overflow. Nowadays, ultrasonic sensors are widely used and probably an innovative sensor based on electrical conductivity introduced by J. Finch in thickeners.
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