The torque capability of a thickener drive is specified as Duty Rating being the maximum mechanism design strength or the 100 setting on the Torque Control Box The torque, in turn, depends on a K factor and the thickener diameter based on the following formula: Torque in Nm = 14 6*K*D 2 in meters

more+The upward flow tends to take ving a settling velocity greater than the upward flow feed rate has to be controlled so that the required in gallons per minute per square foot of settling Lare meter of settling area m3/Wm2 or in solids non issues associated with conventional thickeners sity and dirty overflow A large diameter tank is

more+The high time for thickeners was in the 60's when the metallurgical industries were booming and sizes of up to 150 m diameter were constructed Such jumbo thickeners, when centrally driven, require for most demanding applications extra heavy duty drive heads some of which reach a continuous operating torque of 3 300 000 Nm

more+slight incline and the flow is driven by gravity Therefore, it is possible that the feed line is partially full Proper process control involves using the feed flow rate along with a feed density measurement These two measurements are used to calculate the mass flow rate to the thickener, which is crucial to optimize flocculant utilization

more+gravity, Si Determine the flow rate in m's of water specific 1 through a 24 inch pipe diameter Di using a venturi meter s with a 6 inch throat diameter D2 The gage difference, R in the manometer is 11 8 inches of Mercury Hg

more+The solids suspension was mixed gently to prevent sedimen tation and the meter readings recorded for several consecutive sampling/ana lysis cycles FLOW METERS General Flow totalizers on thickeners 2 and 4 were checked against flow rate measurements in order to assure reliable flow information for the thickener control study

more+makes is proportional to the rate of flow e Swirlmeters, Vortex Shedding Meters, Rotometers, Mass Flow Meters, etc These are devices that have applications in flow measurement The manufacturers should be contacted for detailed information What is an Orifice Meter? An orifice meter is a conduit and a restriction to create a pressure drop

more+makes is proportional to the rate of flow e Swirlmeters, Vortex Shedding Meters, Rotometers, Mass Flow Meters, etc These are devices that have applications in flow measurement The manufacturers should be contacted for detailed information What is an Orifice Meter? An orifice meter is a conduit and a restriction to create a pressure drop

more+Which type of flow meter uses an open channel to measure the flow rate? A Magnetic B Venturi C Parshall flume what is the detention time of the sludge blanket in this gravity thickener? 50 ft diameter 3 ft sludge blanket depth 4 ft cone depth 100 kgpd thickened sludge removed A 30 6 hours B 15 3 hours

more+How to Size Gravity Drainage Piping When a pipe drains water under gravity, its size limits the flow rate Wider pipes can carry more water at any time The pipe's total capacity also depends on the drainpipe's length, with longer pipes holding more water at

more+xvEPA United States Environmental Protection Agency Biosolids Technology Fact Sheet Gravity Thickening DESCRIPTION Thickening is the process by which biosolids are condensed to produce a concentrated solids product and a relatively solids free supernatant

more+Increase the pipe size increase the carrying capacity For a double in pipe size you increase its carrying capacity 4 fold If two pipes have the same flow rate Q the smaller diameter pipe has a faster flow velocity V You are moving the same flow volume of Q water through a smaller hole so it goes faster

more+commonly 3 meters 10 ft Tank depth is most frequently between 2 to 6 meters 6 6 to 20 ft Rectangular tank unit width is usually selected based on available standard sizes of sludge collection mechanisms and varies between 2 to 6 meters 6 6 to 20 feet

more+strength of 4,000 psi Three of the thickeners will each have a diameter of 65 feet and one thickener will have a diameter of 50 feet Anaerobic Digester thickened underflow from the bottom of gravity thickener is pumped to the digester for treatment Each digester will have a

more+Ashbrook Simon Hartley 2 2 meter size 3 Aquabelt gravity belt thickener The model is Ashbrook Simon Hartley 2 2 meter size 3 Aquabelt Gravity Belt Thickener Year 1993 Includes control cabinet, hydraulic power unit and they also threw a small stainless steel tank in with it The gravity belt thickener has a 3 HP drive motor

more+Water Flow Chart #1 The chart below takes into consideration the potential damage from hydraulic hammer shock and noise considerations due to excessive fluid velocity For more detailed information click here for our pipe selection based on pipe size and flow requirement Nomograph You can flow more than what is shown in the chart see Chart #2 below however, you may run into problems if you do

more+L1420 6 So then calculate the diameter from this area # both dry solids and as wet sludge assuming a sludge concentration of 6 solids and a specific gravity of 1 03 Determine the return recycle flow rate in cubic meters per day and in MGD

more+In order to develop rational methods of measurement and laboratory testing, it becomes necessary to study the general phenomena of settling rates Since it was desired to give the public the benefit of these methods at as early a date as possible, together with the knowledge of the general principles of slime settling necessary for a clear understanding of the laboratory tests, we have

more+The thickener was applied at various concentrations 0, 4, 8, or 12 g/l in the pretreatment bath to determine the effect of cationization on the optimal level of thickener The concentrations of soda ash and urea in the pre treatment were 40 and 100 g/l respectively The fabrics, untreated cotton and cotton cationized with 100 g/l reactant, were printed with the cyan ink at 360 and 720 dpi

more+STOP! If youre using one of those design it yourself brochures or websites all bets are off! You need to either forget you ever read them or do not continue You can NOT try to mix the almost guessing methods most of them use with the method in this tutorial If you are going to use this Continue reading How to Find Your GPM PSI Gravity Flow

more+The basic operation of the gravity thickener is described in this lesson, focusing on the theory of operation, components found in a typical thickener, and the parameters which must be understood in optimizing the opeation of the thickener Attention is given to mathematics concepts Which are used in

more+primary thickening Gravity thickening requires a high space requirement and can cause odors Furthermore, gravity thickening is only suitable for primary sludge thickening Since it is desirable to use the same type of equipment on both primary sludge and WAS, and the City staff did not have good experience with their gravity thickeners

more+Thickeners versus centrifuges a coal tailings technical comparison S Meiring 58 Paste 2015, Cairns, Australia 6 Sedimentation In its simplified form, there is a direct relationship between the size of a spherical particle and its rate of fall

more+For Our standard two meter machine minimum L 10 life is equivalent to over 135 years ot continuous service The Komline Sanderson gravity belt thickener for sludge/slurry volume reduction 3ravabelt The Komline Sanderson GravabeF is a sludge/slurry thickener for municipal and industrial applications

more+In Table I of the July article, improve Clarifier and Thickener Design and Operation, by Joel Christian pp 50 56, the titles Vi and TSS are reversed The first TSS is 3 1 and the first Vi is 6 045 In the overloaded case on p 55, the underflow c oncentration should be 240 kg/m 3, not 140 Also, the dashed line in Figure 9 is not used in

more+Mar 26, 2011 I am trying to calculate rate of flow from drain of pipe pipe size is 6 about 100 feet long, and drain size is 3/4 It is a gravity flow and medium is water there is a large piping system which we have to drain for shut down, we have to calculate the time it will take to drain that

more+FLOW RATE AS A FUNCTION OF PRESSURE HEAD AND HOLE DIAMETER IN DRILLED PVC PIPE Drilled Hole Diameter inches Pressure Head 3/32* 1/8** 5/32 3/16 7/32 1/4

more+The main goal of sludge thickening is to reduce the sludge volume by removing as much as possible of the water content of sludge, leading to the increase of the solids content of sludge Thickening is achieved by the following three methods: a Gravity thickening: Gravity thickening is achieved in circular tanks similar to sedimentation tanks

more+The concentrate thickener TH 02 is a 10m diameter thickener It has a feed rate of about 33t/hr with a settling rate of 0 42t/m 3hr It has a retention time of 12 hours with 40 45 solids underflow density and a live capacity of 520m 3 The underflow is pumped to the BIOX surge tank while the overflow flows to the storage water tank

more+Pipes 6 inches or more in diameter require 15x the piping diameter in upstream straight run and 7 5x the piping diameter in downstream straight run Turbine The amount of straight run needed can depend on how many disturbances exist upstream, especially when using a turbine style flow meter

more+the rest will be used up as friction to provide a given flow through the pipe Unfortunately, gravity water flow in pipes must be designed to the terrain of a site, so the above is a simplification If the terrain is a consistent or near consistent grade, one pipe size could be chosen to

more+Thickener control has a number of complexities such as varying feed characteristics Changes in feed concentration, solids specific gravity, particle size distribution, pH, temperature, and reaction to flocculant can all contribute to variations in performance Accurate information about whats happening inside the thickener is difficult to get

more+Jun 22, 2013 Water Flow Chart #2Pressure Flow in GPM through pipe ID in inchesPSI 1 1 25 1 5 2 2 5 3 4 520 26 47 76 161 290 468 997 289530 32 58 94 200 360 582 1240 360340 38 68 110 234 421 680 1449 420950 43 77 124 264 475 767 1635 474860 47 85 137 291 524 846 1804 523975 53 95 153 329 591 955 2035 5910100 62 112 180 384 690 1115 2377 6904125 70

more+gravity, Si Determine the flow rate in m's of water specific 1 through a 24 inch pipe diameter Di using a venturi meter s with a 6 inch throat diameter D2 The gage difference, R in the manometer is 11 8 inches of Mercury Hg

more+then withdrawn as the underflow from the bottom of the thickener while the clarified liquid constitutes the thickener overflow As a sedimentation process, gravity thickening is distinguished from clarification in that, at the solids concentrations normally involved in gravity thickening, hydrodynamic and physical particle interactions occur

more+How much water will a 2 inch pipe gravity flow? Assuming the pipe is 1 25 inch inner diameter, its capacity is approx 63 75 US gallons 168,000 cubic meters of water flow over the crest

more+then withdrawn as the underflow from the bottom of the thickener while the clarified liquid constitutes the thickener overflow As a sedimentation process, gravity thickening is distinguished from clarification in that, at the solids concentrations normally involved in gravity thickening, hydrodynamic and physical particle interactions occur

more+The solids suspension was mixed gently to prevent sedimen tation and the meter readings recorded for several consecutive sampling/ana lysis cycles FLOW METERS General Flow totalizers on thickeners 2 and 4 were checked against flow rate measurements in order to assure reliable flow information for the thickener control study

more+This ultra calculator is special by allowing you to choose among a great variety of units 6 for diameter and 24 each for velocity and flow rate Unlike other calculators, you are NOT confined to inputting diameter in inches, velocity in miles per hour, etc making this calculator quite versatile

more+The high time for thickeners was in the 60's when the metallurgical industries were booming and sizes of up to 150 m diameter were constructed Such jumbo thickeners, when centrally driven, require for most demanding applications extra heavy duty drive heads some of which reach a continuous operating torque of 3 300 000 Nm

more+The cost and effectiveness of three solids thickening processes, i e , gravity thickening settlers GTS, inclined belt filters IBF, geotextile bag filters GBF, were individually evaluated with the biosolids backwash produced in intensive aquaculture systems equipped with microscreen drum filters and radial flow

more+slight incline and the flow is driven by gravity Therefore, it is possible that the feed line is partially full Proper process control involves using the feed flow rate along with a feed density measurement These two measurements are used to calculate the mass flow rate to the thickener, which is crucial to optimize flocculant utilization

more+There are countless numbers of pipes across water districts and wastewater networks that do not run full all the time Whilst from a measurement perspective it is preferable to measure flow in a full pipe, from a practical viewpoint it is often either difficult to achieve full flow under all

more+The thickener was applied at various concentrations 0, 4, 8, or 12 g/l in the pretreatment bath to determine the effect of cationization on the optimal level of thickener The concentrations of soda ash and urea in the pre treatment were 40 and 100 g/l respectively The fabrics, untreated cotton and cotton cationized with 100 g/l reactant, were printed with the cyan ink at 360 and 720 dpi

more+Using the principles of flow calculations, some basic formulas, and the effects of specific gravity and temperature, flow can be estimated well enough to select a valve size easily and without complicated calculations Flow calculation principles The principles of flow calculations are illustrated by the common orifice flow meter see Figure 1

more+The concentrate thickener TH 02 is a 10m diameter thickener It has a feed rate of about 33t/hr with a settling rate of 0 42t/m 3hr It has a retention time of 12 hours with 40 45 solids underflow density and a live capacity of 520m 3 The underflow is pumped to the BIOX surge tank while the overflow flows to the storage water tank

more+Gravity belt thickener model selection is a function of hydraulic feed rate the Model G 25 thickening system is generally appropriate for 0 5 to 1 0 waste activated sludge feed rates up to 125 GPM 7 9 liters/sec or 28 M3/h and the GSC and GSCE series machines are appropriate for higher feed rates

more+For Our standard two meter machine minimum L 10 life is equivalent to over 135 years ot continuous service The Komline Sanderson gravity belt thickener for sludge/slurry volume reduction 3ravabelt The Komline Sanderson GravabeF is a sludge/slurry thickener for municipal and industrial applications

more+The thickener overflow is directed to the process water reservoir for reuse in the plant The thickener underflow, at 70 solids, is pumped to two 10,670 mm diameter x 12,800 mm high agitated slurry storage tanks, each providing 8 hours storage capacity From the storage tanks, the concentrate slurry is pumped to a horizontal vacuum belt filter

more+An Introduction to Sludge Handling, Treatment and Disposal J Paul Guyer, P E , R A Paul Guyer is a registered mechanical engineer, civil engineer, fire protection engineer and architect with over 35 years experience in the design of buildings and related infrastructure For an additional 9 years he was a principal advisor to

more+CHAPTER 3 SLUDGE THICKENING Thickening is a procedure used to increase the solids content of sludge by removing a portion of the liquid fraction To illustrate, if waste activated sludge, which is typically pumped from secondary tanks with a content of 0 8 solids, can be thickened to a content

more+Gravity Thickeners Back to Product Search The C and CP Bridge Supported Thickener is provided with a bridge which spans the tank diameter and carries the entire weight of the Thickener mechanism and the feed well Flow is brought into the Thickener through a pipe which may be either suspended from the bridge or brought through the side of

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