Simple sevenvalve base design, allowing easy isolation and replacement. Usually, dust collection vents are placed above the top of the hopper. Empty pails or bags into hopper mixer and slowly open powder valve, make sure that your water is passing thru the hopper. Over his career bill hancock has worked for a range of. Mounted in the foreground bottom is a progressing cavity pump.
A 6 butterfly valve allows adjustable feed rates of 250350 lbs. The sizes of these silos may vary from capacities less that 1 tonne to the largest containing as much as 100 000 tonnes. The mini eductor works in the same way as larger eductors but on a much smaller scale. In the balance by design method, the duct size and layout is engineered to balance the airflow in the systems branches, pickups, and trunk. Solids conveying eductor data sheet fox venturi products. The resulting slurry can be transfer horizontally and vertically with few pound of pressure at the process end injection point. The design incorporates our standard eductor tube with a straight extension 2 great er in diameter than the eductor discharge. Submit as much application information as you have. Dry air is used to fluidize material in the hopper. Bex eductors are used for mixing chemicals, suspending solids, adjusting ph, sweeping. Little agitation occurs below the level of the eductor, so eductors should be positioned as close as possible to the bottom of the tank for maximum liquid turnover if settling cannot be tolerated, install the eductors at 1. Pneumatic conveying and exhaust systems quickdraft. Standard design the triblender consists of a hopper, a pump with a blending chamber and screen, a diffuser tube and a butterfly valve. Sodimate liquid eductor jet pump eliminates the use of slurry mixing tank, reduces the electrical consumption and floor footprint.
Liquid jet eductors venturi jet pumps manufacturers of. Procap tank lids feature a rugged design that is easy to use and provides a safe and secure hinged cover for a variety of tanks. The highvelocity jet of liquid from the eductor nozzle creates a vacuum, which causes the suction of. Water jet eductors have numerous uses in the plant such as lifting, pumping. The hopper is removable to allow attachment of suction hoses.
The hiride hopper model 175 fe units dynamic positioning design offers. Proper design essential for storage, flow and metering of powdered activated carbon by dan higgins, metalfab inc. Liquid jet eductors manufacturers of venturi process equipment. Over his career bill hancock has worked for a range of companies. Please complete the form below to request a quote on a fox solids conveying eductor. An overview of hopper and design procedure of a pyramid. Liquid jet eductors use the kinetic energy of a motive liquid to entrain another liquid, completely mix the two, and then discharge the mixture against a counter pressure and are used in large numbers throughout industry for pumping and mixing operations. If there is a convergent nozzle not shown in the drawing the jet, the suction point, and the mixing region should be upstream of the convergent section. However, unlike traditional venturi eductors, it is exceedingly resistant to plugging and downtime.
The design of the hopper was developed based on the methodology proposed by jenike 1964 where initially the hopper slope is found in order to guarantee the mass flow, and then the. Fox a forty year history of designing and building high perfor. The company was happy with the proposal and ordered one eductor, which took only 4 weeks to deliver. The rugged stainless steel construction is designed to withstand the harsh offshore rig conditions while meeting all offshore health and safety requirements. Park process manufactures venturi hoppers for the easy addition of dry materials into a liquid stream. The alfa laval vortex shearmixer bbs is a 6 152mm shearmixer connected to a 45 cubic ft stainless steel bulk bag hopper via the vortex vslide. Bex eductors use a unique venturi design which enables smaller pumps to circulate large volumes of tank solution. The chemical eductor located under the tank pulls the liquid from the hopper and mixes it into a jetted stream of water that. The design procedure used for hopper is determined by considering only rice as a storage matter. Chubb michaud cwsvi eductors, also called injectors, work on the venturi principle.
I want to design an eductor system to entrain solids from a hopper into liquid pipeline require constant solids concentration in order 10% ww in the slurry. The flow out the discharge of the eductor will be greater than the pump flow put into it by a. Abrasive material handling solids handling eductors convey abrasive materials including coke fines, sand, metal powders, etc with no moving parts. Vortex inside wetting hopper organizes dry materials to maximize throughput.
Replacement of existing rotary airlocks with venturi eductors makes for simpler, more reliable conveying systems. Solids conveying eductors are used to mix powders with liquids to make solutions or to convey various materials. The polymer is fed into the eductor funnel where it is wetted. The alternative many equipment manufacturers still do not use any rational method to choose their hopper designs. Solid conveying eductors can be successfully employed in conveying various powders, bulk solids, pellets. A table attached to the hopper allows sack material to be supported while being emptied into the hopper. Washdown spray jets supply water to convey all material to the main jetting flow. The venturi design allows smaller pumps to take advantage of the surrounding liquid to create a high velocity flow yield at the diffuser. They an also be used to convey particulate matter e. To reduce the total you may choose to use a nozzle that flows the rated flow of the eductor at a lesser pressure like 75 psig or if you are using. The most notable difference between an eductor and a rotary valve is thac since an eductor has no moving parts, the highve locity air stream must not only provide the conveying air but must, in conjunction with the venturi, create an area of low pres sure into which product fds and is entrained.
Material is introduced through a conical hopper by gravity into this lowpressure zone where the motive fluid entrains and carries it to the desired discharge. The suction point is where the jet enters the mixing region, indicated on the drawing at the 3 to 6 point. Eductors use a high speed jet to mix with the fluid that needs to be pumped. The proprietary eductor design minimizes pressure loss, provides consistently higher vacuum. How do i design an eductorjet or venturi system to. Applications the alfa laval vortex shearmixer is a highperformance venturi slurry eductor uniquely designed to operate in demanding slurry mixing jobs. Mud mixing eductor with hopper e2300series primetech for mixing of drilling and completion fluids in onshore and offshore rigs the primetech mud shearing eductor is an effective solution for the introduction of powdered, granular or liquid additives into drilling, reservoir drillin or completion fluids. The simplicity of a design with no moving parts further reduces maintenance costs and makes our solids eductors ideally suited for explosive environments. Venturi eductor airlock into another hopper, where it.
Fox liquidsolid slurry eductors fox venturi products. Sodimate liquid eductors jet pumps use water or other liquids under pressure as the motive fluid, and operate on the venturi principle to mix dry chemicals into slurries water is constantly injected inside the slurry cone to provide instantaneous hydration, reduce dust, and avoid clumps. There needed to be a means of putting the sand from the middle hopper into the eductor, so that the sand can be recycled to the top. In order to attain this type of flow pattern, the hopper walls must be steep and smooth. In the foreground right is a svenmix 1100 gallon polyethylene tank with a. The triblender design utilizes a butterfly valve to control the rate of dry material flow through the hopper. All threaded components of the same size are interchangeable regardless of the material. Flo trends stainless steel hoppers are available in 9, 12, 16 20 and 24 diameter cones. Massflow refers to a flow pattern where all the material in the bin is in a downward motion, whenever the fe column slides along the hopper walls. Az mixing eductors compatible components corporation.
Pumping liquid through the eductor nozzle and on through the venturi section creates a lowpressure zone between these two components. Construction features a polypropylene venturi eductor and hopper lid. These pumps make use of their structure to transfer energy from one fluid to another via the venturi effect. In fact, while the theory is sound, in practice balancing the performance of the pump, eductor and mixer is often difficult. Designing with educators from the beginning ensures the most reliable product feeding availa. Jet hopper jet hopper dry materials can be directed into eductor suction port by the addition of a feed hopper. Originally developed to mix drilling mud for oil industry applications, these devices have proved to be so effective and versatile that they are. Online proper design essential for storage, flow and. Feeder loads are influenced by several factors including. High pressurehigh flow 11mm right hand includes three 220 universal flange gaskets and a 12 pushtoconnect plug 33710038r right hand eductor only 33710039r left hand eductor only 33710040 transfer pump. Fox valve manufactures a broad range of engineered products based on one core technology.
The suction is connected to the hopper which contains the materials to be conveyed. The perforated section on the discharge end of the eductor acts as an air vent to reduce the down stream resistance. Hypro has provided this manual to provide instructions and requirements that. Design filling and handling equipment properly to limit attrition. Eductor based systems minimize dusting and eliminate the problem of floating solids in batch mixers. This system is designed to provide 60 psi to the mud hopper nozzle which will pass 660 gpm of fluid. The eductor will circulate four to five litres of solution for each litre pumped. Fox venturi eductors have no moving parts allowing for maintenancefree feeding of bulk solids. From a design point of view, it is important to be able to determine the loads acting on feeders in hopper feeder combinations and the corresponding power requirements. Eductors are a kind of jettype pump that do not require any moving parts to be able to pump out a liquid or gas. Online proper design essential for storage, flow and metering. Start mix pump, make sure the 2 inch water bypass line valve is in a close position use this in peak demand periods.
The az mixing eductor has a noncircular nozzle that generates twin geometrically and opposing downstream vortices. The parkprocess venturivac systems are designed to mix and. These range from offtheshelf solidsconveying, liquid, and gas jet eductors to highly qualified flow controls for spacecraft, energy research, and advanced product development projects. If you need additional guidance about which of our products is right for your application, please use the ask a question form or call our office at 9733281011 and ask to speak.
The hiride hopper units dynamic positioning design offers the unique ability to rotate the mpd tmd eductor assembly up to 180, creating unparalleled flexibility for new installs or retrofits on offshore or land rigs. The heart of the mhc is a 4 bronze eductor, useable in other applications when not used with the hopper. The az mixing eductor can provide the required energy to accomplish proper mixing, hydration and dispersion utilizing a conventional centrifugal pump or rotary gear pump. If desired the station can include a weigh cell system for. An eductor acts like a pump to increase the flow rate you put into it. The structure of the pump is such that it has an injector chamber with a narrow shaped nozzle or tapered jet that is located inside the. Premix tank design features eductor jets, lightening mixers. Hopper eductors for pumping and conveying granular solids.
Mud mixing eductor with hopper e2300series primetech. Placed below the hopper in a bag dump station, eductors eliminate blowback due to leakage and control dust clouds by creating vacuum and drawing the product in. Implement balance by design when balancing the airflow and more importantly air velocity in a dust collection system, there are two main approaches. The carusmatic engineered feed systems selection guide is shown below. The hopper eductor is a hopper equipped jet ejector designed to entrain and mix granular solids or slurries with liquid and discharge the mixture to a receptacle or transfer it to a desired location. Eductor principle, operation and maintenance on ships. Venturivac eductors can be combined with a feed hopper to facilitate the addition of. As appeared in october 2018 pbe copyright csc publishing. Novel liquidliquid and liquidsolid mixers improve drilling fluid. In fact, the friction between the moving fluid and the walls of the eductor will take a small amount of energy out of the fluid. The hiride hopper model 175 fe units dynamicpositioning design offers the unique ability to rotate the mpdtmd eductor assembly up to 180 while utilizing up to 3 in. Some materials handled include ash, sugar, gloves, activated carbon, drilling mud, plastic pellets, trim, lime, sludge, talc, grain, salt, ion exchange resins, alumina, quartz, plastic regrind, diatomaceous earth, ice cream mix, food. Liquid jet eductors the pumps with no moving parts.
Eductor conveyors are frequently outfitted with a conical hopper on the suction, sometimes with wash down nozzles, to allow the particulates to efficiently flow into the suction connection by gravity. The reason behind the design was to find a means of weighing the sand with a load cell. Solids eductor jet pumps may also be used to transport dry solids using a gas e. Includes an 8inch jet hopper system that discharges solids and. For every foot the nozzle is elevated above the eductor you must add. Can anyone suggest a resource or reference that would give me design rules for this type of application. Hypro cleanload chemical eductors are designed to mix fluids and dry chemicals in. How do i design an eductorjet or venturi system to rapidly. Nci can supply solids eductors in carbon steel, stainless steel, plastics, nihard and many other materials depending upon the application requirements. The az eductor does not use mechanical shear to achieve uniform hydration and dispersion. In applications involving fine, abrasive, or irregularlyshaped products, this is an enormous advantage.
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