Schutte & Koerting’s Liquid Eductors for Handling Dry Solids are extremely versatile, capable of effectively handling a wide range of materials that typically cause problems in mechanical feed devices. These Eductors use pressure liquid only for motive power and both mix and pump.
S&K’s liquid eductors have no moving parts and consist of a simple, three-piece construction. Requiring practically no maintenance during its service if “washed down” periodically, S&K’s Liquid Eductors for Handling Dry Solids are surprisingly low in initial cost and upkeep.
Liquid Eductors can easily be made form any workable corrosion-resistant material.
No other mixing or pumping device offers all these advantages.
FIG. 267 SOLIDS/LIQUID MIXING EDUCTORS
For In-Line Mixing and Transfer Of Granular Solids and Liquid
The Type 267 Solids/Liquid Mixing 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. Originally developed to mix drilling mud for oil industry applications, these devices have proved to be so effective and versatile that they are being applied to increasing numbers in diverse industries including the food, chemical processing, pharmaceutical, glass, power, and others.
The unit consists of a body, nozzle, and hopper. All threaded components of the same size are interchangeable regardless of the material (nonmetallic bodies and nozzles are cemented together). Four support brackets are provided as shown. As shown in Table 2 on page 2, a variety of materials are available. In addition to those noted, any workable material can be supplied on special order.
In operation, liquid under pressure issues through a converging nozzle in the eductor and produces a high velocity jet. This creates a suction in the body of the eductor and causes the suction material to be drawn into the eductor and entrained by liquid.
Both the motive liquid and the entrained material are intimately mixed in the throat of the eductor and are discharged against back pressure. Table 3 on page 2 shows the estimated capacities and water consumptions for Solids/Liquid Mixing Eductors.
Contact Schutte and Koerting for any other required information, including prices.
Fig. 1 S&K Fig. 267 Solids/Liquid Mixing Eductor. This simple, but effective, in-line mixing and pumping device is comprised of only three separable parts, namely: a body, nozzle, and a hopper for funneling granulars solids or slurries into the eductor suction connection.
Table 1. Sizes and Dimensions of Fig. 267 Solids/Liquid Mixing Eductors
Table 2. Available Materials (Stocked)
Note: Hoppers with threaded connections are supplied in these materials in all sizes – Steel, *316 Stainless Steel, PVC.
STOCKED IN 1″, 11 ⁄ 2 ” AND 2″ SIZE.
Table 3. Estimated Entrainment Capacities for 1” Size Eductor, Fig. 267.
(For capacities for other sizes, multiply by factor given in table of
relative capacities, below.)
NOTE: Above based on 5 psig discharge pressure
Table 4. Relative Capacities
FIG. 254 HOPPER TYPE EDUCTOR
APPLICATION
S&K Fig. 254 Hopper Type Eductors are made for handling slurries or dry solids in granular form and are used extensively for ejecting sludges from tank bottoms, for pumping sand from filter beds and for washing and conveying granular materials.
CONSTRUCTION
Standard Fig. 254 Eductors are made in cast iron and have hardened steel nozzles and throat bushings. Special materials are also available on order. The nozzle and throat are both easily replaced.
Standard sizes include 1 1⁄2 “, 2″, 3″, 4″ and 6”, while larger sizes of special construction can be made to order to meet exact requirements. Pressure and discharge connections can be fitted for hose when maximum portability is desired. The handles and supporting feet are optional equipment.
OPERATION
Agitating jets keep the material from adhering to the sides of the hopper and keep it moving down into the eductor. Pressure water, passing through the eductor nozzle, entrains the sand, sludge or other materials and discharges into the piping system. Under normal operating conditions, the pressure should be 4 times the discharge head and the eductor should handle from 1 to 3 lbs. of sand per gallon of water. It will handle equivalent volumes of other materials.
Fig. 254-A. Sectional view of Hopper Type Eductor. Note that pressure water is bypassed from the pressure line to the eductor wash-down nozzles in the eductor hopper. The liquid issuing from the wash-down nozzles washes the material down into the hopper and prevents bridging of the material. Also, the wash-down of the liquid seals the suction against entrainment of excess quantities of air and, thus, increases suction capacity approximately three times. The wash-down nozzles are large and a regulating valve is provided so that the jet velocity can be reduced to provide smooth flow down the hopper sides and prevent excess agitation and splashing. If wash-down liquid cannot be used, the capacities shown in Table 6 will have to be divided by approximately three.
Table 5. Sizes and Dimensions of S&K Hopper Type Eductors, Fig. 254
Table 6. Suction Capacities and Water Consumption of 1.5” S&K Hopper Type Eductor, Fig. 254
*Based on using approximately 10% motive water through wash-down nozzles. Note: Fig. 254 Eductors are built on special order for specific operating conditions. The table above is indicative only of what can be accomplished under certain conditions. For capacity characteristics for your operation, please contact our engineers.
Table 7. Typical Materials Handled By S&K Fig. 254 Eductors (Many others not listed)
FIG. 227 SOLIDS MIXING EDUCTOR
Furnished with a stainless steel funnel, the eductor can be made of any machinable material. Bronze units up to and including 3″ and cast iron units up to and including 4″ sizes are available from stock. Prices, delivery or a sectional outline drawing 67-XS-081-J will be furnished on request. Stainless steel funnels are stocked in 1 1 ⁄ 4 “, 11 ⁄ 2 ” and 2″ sizes.
Estimated Capacities for 1-1/2″ Fig. 227 Mixing Eductor
5 PSIG Discharge Pressure (max.)
Sizes and Dimensions of Fig. 227 Hopper-Equipped Eductor
Bulk Density Chart
