Durably constructed in either mild or stainless steel, Scott industrial batch mixers ensure accurate mixing of all types of products from fine powdered materials to coarse ground ingredients. Our engineering department is always on the cutting edge of design technology, offering innovative and time-proven solutions to mixing a multitude of products. All of our industrial ribbon mixers are custom built to efficiently and cost-effectively meet each application requirement.
Scott Equipment offers a variety of discharge gates, which are available in sizes ranging from 2" in diameter to 36" in diameter. With the ribbon agitator design, the discharge gate can be located on either end or in the center of the mixer.
The paddle agitator design must have the discharge located in the center of the mixer for efficient cleanout. The selection of discharge gates available from Scott Equipment Company will suit your needs and your unique applications, with custom designed discharges also available.
Scott Equipment's standard seals for horizontal batch mixers are well suited for most mixing applications and will meet nearly all requirements of today's mixing industry. However if you have a particular concern with your product, we will accommodate your needs by designing a custom seal. Selecting the right agitator for your application is essential to proper mixing. At Scott Equipment, we have six different agitator designs available to meet any custom mixing requirements.
Furthermore, with our Pilot Plant Testing Lab, you will have the ability to test our agitators with your products before purchasing your batch mixer, ensuring you get the right mixer or blender for your specific application needs. All our agitator designs are available in either mild or stainless steel with standard, sanitary or special high polish finish. Below are the features for our most popular industrial batch mixing agitators.
Combine our industrial batch mixers with the Scott Surge Hopper and increase production with batch cycle times as low as 90 seconds. Our surge hoppers provide fast, efficient clean out between mixing and are available with a paddle drag or screw conveyor for discharge.
The mixer can also be equipped with a drop bottom gate. Industrial Batch Mixers Durably constructed in either mild or stainless steel, Scott industrial batch mixers ensure accurate mixing of all types of products from fine powdered materials to coarse ground ingredients.
Mind Mixer Mechanical Design
Industrial Batch Mixer Discharge Gates Scott Equipment offers a variety of discharge gates, which are available in sizes ranging from 2" in diameter to 36" in diameter. Drop Bottom Gates Designed For Use With Surge Hoppers Scott drop-bottom design has eliminated the piano hinge for improved performance Single drop-bottom gate eliminates leakage and gives a complete batch discharge Requires minimal servicing or adjusting No felt, rubber or other sealing materials are used, yet a positive tight seal is achieved All drop gate mixers are supplied with oversized intervent systems to allow for dust-free air exchange between the mixer and the surge hopper Other gate options are available including single, double and triple air gate slide gates Specially designed discharge systems are also available to meet custom requirements.
Industrial Horizontal Batch Mixer Seals Scott Equipment's standard seals for horizontal batch mixers are well suited for most mixing applications and will meet nearly all requirements of today's mixing industry.While a surplus tank from a past project paired with an old mixer from the maintenance department may be convenient and inexpensive there is another key result to consider: good mixing.
How many horsepower do I need? Should I buy a direct drive or gear-driven mixer? What size and type of impeller works best? These are just some of the questions that people ask when looking for an industrial mixer.
For those experienced with production of liquid products or design of continuous flow processes the answers may be familiar; but what about the professional who has an infrequent or even a one-time need to set up a batch mixing system?
Therefore, the following is offered as a foundation for sizing up common industrial mixing needs. Therefore, the successful mixing system design ensures uniform distribution of ingredients through frequent exposure to the mixing impeller. All industrial mixing applications consist of a combination of flow and shear. Mixing engineers calculate pumping capacity in units including tank turns per minute, bulk fluid velocity and agitation scale, a point system rating agitation from mild to violent.
The material flow pattern can be thought of as the visualization of how and where the material flows throughout the mixing vessel. It is influenced by the relationship between the impeller and vessel geometry, not simply by the batch volume. A large impeller rotating slowly and a small impeller rotating fast may have equal pumping capacities but will provide significantly different flow patterns.
Fluid shear is the change in velocity gradients along the profile of the impeller. Low shear is desirable for shear-sensitive ingredients or mixtures whereas high shear may be required to achieve the desired outcome when using immiscible liquids or for suspending higher density solids. Armed with the basic understanding of what effective mixing is and the concepts of flow and shear the following is a working list of prerequisite information and design guidelines used by industry professionals:.
From the above, the optimal theoretical design, i.
Normally, simple blending applications utilize marine style or hydrofoil impellers as they pump liquid very efficiently.
More viscous materials often call for an axial flow turbine, sometimes also referred to as a pitched blade turbine. These impellers feature wide, flat blades at a degree angle for increased surface area in contact with the liquid.
It is at this point that the mixer horsepower and torque can be calculated enabling selection of the motor and gearbox if one is required. Figure 1.
General guidelines are that a liquid depth to diameter ratio Z:T of 1. For a Z:T ratio higher than 1. An impeller to tank diameter ratio D:T of. Higher viscosities may require a D:T of.
Tank baffles are optional but common to prevent low viscosity liquids from simply swirling around the tank in a center-mounted configuration. Another practice to improve mixing vessel turbulence is to locate the mixer off-center and at a 10 to degree angle from vertical.Easily search resources, browse images, and learn about ROSS products.
Industrial Mixers Menu Not sure where to start? They are most often used for chemical, paint, ink and specialty coatings applications. High Shear Mixers High Shear Mixers ROSS is the leading manufacturer of high shear rotor-stator mixer homogenizers and high-speed dispersion equipment for the adhesives, chemical, cosmetic, food pharmaceutical and plastics industries.
Kneaders Kneaders ROSS Kneader Extruders combines the efficiency of a double arm - sigma blade mixer with the convenience of an extrusion screw for the mixing and discharging of heavy viscous materials. They are also offered in dual or triple shaft configurations to match up with your specific process needs. Planetary Mixers Planetary Mixers ROSS is the leading supplier of Planetary Mixers to mix products including adhesives, pharmaceuticals, foods, chemicals, electronics, plastics and pigments.
Food & Beverage
The SLIM system sucks solids directly into the high shear rotor-stator where they are wetted out and dispersed into the liquid stream. Tumble Blenders Tumble Blenders ROSS tumble blenders are available in a variety of geometries, the most common being the V-shaped or double-cone configurations.
Vacuum Drying Systems Vacuum Drying Systems Complete vacuum drying systems are available to meet the needs of each application. The rotor stator head is positioned in the bottom center of the mix vessel to enable its use with very small volumes of material.
Vertical Blenders Vertical Blenders Vertical Blenders are an excellent design alternative for applications that are shear sensitive or where space on the plant floor is at a minimum.
Control Systems Control Systems ROSS control and data acquisition systems offer unprecedented accuracy and flexibility in the mixing and blending process.
Take a look at the current inventory of each product line as you review the capabilities of each design. Applications include the simple stirring of low viscosity miscible fluids to the sophisticated dispersion of high viscosity dissimilar materials. Aerospace and Aviation Aerospace and Aviation The Aerospace and Aviation Industry is a special niche market we are proud to serve for many decades now.
ROSS Mixers and Blenders are used in the manufacture of aerospace materials and intermediates Batteries and Electronics Batteries and Electronics Our Mixers and Blenders are associated with a wide range of dry and wet applications in the battery and electronics industries.
ROSS has the expertise to effectively incorporate any active ingredient in a full application viscosity range. Proper homogenization is key to obtaining uniform potency. Typical applications include mixing, blending, particle size reduction, emulsification, homogenization, powder induction, vacuum processing and more. Cosmetics and Personal Care Products Cosmetics and Personal Care Products Our mixers and blenders are applied for many development and production operations in the cosmetics and personal care industries.
Food Food Applications ROSS is a leading manufacturer of mixing, blending, drying, size reduction, emulsification, homogenization, dispersion and control equipment for the Food Industry. We have over years of experience designing and building a variety of equipment for applications ranging from simple stirring to sophisticated reactions.
We have the experience and production capacity that no other manufacturer of specialty mixing and blending equipment can match. Plastics and Composites Plastics and Composites ROSS mixers, blenders and dispersers are used throughout the plastics and composites manufacturing industries.
Industries Served In virtually every industrialized nation, ROSS equipment is now the 1 choice for mixing, blending and dispersion. Since the company was founded, we have built a world class reputation for innovative engineering, superb construction and fast delivery.
Links Links Over the years, ROSS has found a number of related websites and resources to help in your mixer and blender selection process.A premium membership for higher-level suppliers. Machinery Mixing Equipment. Home Appliances Food Mixers Blenders. Environment Water Treatment. Relevancy Transaction Level Response Rate. Supplier Types Trade Assurance. Supplier A premium membership for higher-level suppliers.
Supplier Location. Order : OK. Ready to Ship. Warranty of core components 1. Warranty 1 Year 2 Years. Contact Supplier. Various inlets Various inlets on the top cover of the barrel can be designed according to different situations. They can be used as man hole, cleaning door, feeding hole, vent, and dust colleting hole. Widely used in factory, Enterprises, government, hotel, motel, restaurant, residence as storage facility.
Use it as equipment in drinking water treatment and fire water supply PE liner: Rotation moulding or blowing one-piece seamless without leakage. Unique design Industrial Screw Mixer Multi-function mixer Constant temperature mixer mixing concrete machine. Unique design Industrial Screw Mixer. Stainless steel L horizontal mixing machine,horizontal ribbon mixer for powder. Q:What's the delivery time9 A: It will take about 20days to finish an order, but the exact time is according to actual situation.
Q: Do you have quality control9 A: Yes, we attach great importance to quality control. Q: How about the warranty control9 A: One year warranty for the machineries since sold. The ribbon mixer can be equipped with heating or cooling jacket if temperature control is required.
Our main products including tea powder mixing machinecolloid mills,Stainless Steel Tank, high shear mixer, beer fermenter and Sanitary pump s etc.Mixing should be a process operation, not a mechanical problem. Yet, some plants push a mixer beyond the capability of its mechanical design and then get themselves into trouble. While most mixers can provide a long service life — for instance, some are still operating after more than 30 years — mechanical problems can shorten life or even break parts.
Often, the processing capabilities of the mixer fail before the equipment does, but poor processing can cause mechanical problems. Usually, equipment manufacturers know the limits of their equipment and design to specified conditions. However, over the life of a mixer, process requirements and conditions may change from those specified for design.
So, here, we will explore some of the mechanical problems that may befall mixing equipment. Most everyone appreciates the danger of overloading a mixer, usually by trying to mix a material that is more viscous than the mixer can handle. Actually, many mixers are designed to cope with a wide range of materials and have considerable overload capabilities.
Some portable mixers and high-speed dispersers can handle very high viscosities without overloading. While high viscosity is an obvious load factor in mixing, fluid density has a direct effect on the motor load in turbulent conditions. A high density fluid, such as a mineral slurry, can overload a motor that is not designed for process conditions.
In any case, gear reducers, shafts, impeller blades and other basic components should be chosen to match the maximum motor load. Still process overloads can occur and may damage the motor or shorten the life of other components.
A mixer component, such as a shaft, shaft seal, impeller blade or gear reducer, may fail for several reasons. Differences between actual process conditions and original design criteria often can cause problems. In other cases, installation shortcomings can contribute to equipment failures. Most mechanical loads come from an interaction between the mixer and the fluid Figure 1. Obviously, a force is necessary to rotate the impeller.
That force is represented by a torque load transmitted by the shaft from the drive to the impeller. Besides the fluid forces that resist the rotating impeller, moving fluid creates random hydraulic forces that act perpendicularly to the shaft.
These forces create a bending moment on the shaft. A typical cantilevered shaft, which is supported only by the mixer drive, can experience significant bending loads. So, selection of shaft diameter requires consideration of both the torque and bending loads.This article explores the following topics related to shaft design:. The length of the industrial mixer shaft is primarily determined by the desired location of mixing impellers in the vessel. This is directly related to the geometry e.
The weight, torque and hydraulic loading of the industrial mixer shaft are determined by the impeller, which is itself, determined by your process requirements. The design of the industrial mixer shaft must be able to handle the torque and bending moment induced by its impeller. Modern designs for industrial mixer impellers often put more stress on the mixer shaft caused by bending moment than the stress caused by the torque required to power them.
Consequently, while a commodity gearbox comes with an output shaft diameter commensurate with its torque rating, a gearbox specifically designed for industrial mixer applications comes with a larger shaft that allows for the bending moments typical of mixing applications. One free variable in industrial mixer shaft design is its stiffness, which is directly related to its diameter. The diameter of your industrial mixer shaft must be large enough to withstand the stress brought about by the combined torque and bending forces on it.
The diameter of your industrial mixer shaft must also be large enough to keep the critical speed sufficiently above the operating speed to prevent excessive vibration. Proper industrial mixer shaft design does not allow the critical speed limit to be the controlling factor on the shaft diameter.
A good industrial mixer design cannot use a gearbox that has an output shaft significantly smaller than the mixer in tank shaft, even if the overall critical speed of the system would be sufficient.
A large change in stiffness close to the top of the shafting where the small gearbox shaft is coupled to the large tank shaft concentrates the shaft deflection on the smaller diameter. The result is ultimate fatigue failure of the gearbox shaft. The industrial mixer designer can address this problem in two ways. First, they can choose a gearbox with an output shaft about the same diameter as the tank shaft.
When critical speed controls the diameter, this will require a gearbox capable of handling significantly more torque and bending than is actually required by the application. The result is a gearbox with a very high service factor that is more costly than required by the industrial mixer motor size and less efficiency because it is under loaded.
The second way to avoid fatigue failure of the gearbox shaft is to mount the tank shaft in bearings in the gearbox support pedestal. The gearbox can then be chosen based on the power required, and it can be flexibly coupled to the top of the tank shaft. However, this can result in a more complicated mounting arrangement and require additional maintenance and spare parts.
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Design and Fabrication of Portable Industrial Mixer
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