FEECO is a leading manufacturer of highly engineered, custom rotary kilns for processing solids. Our high temperature kilns have earned a reputation for their durability, efficiency, and longevity. We offer both direct- and indirect-fired units.
Rotary kilns work by processing material in a rotating drum at high temperatures for a specified retention time to cause a physical change or chemical reaction in the material being processed. The kiln is set at a slight slope to assist in moving material through the drum.
Direct-fired kilns utilize direct contact between the material and process gas to efficiently process the material. Combustion can occur in a combustion chamber to avoid direct flame radiation, or the flame can be directed down the length of the kiln.
All FEECO equipment and process systems can be outfitted with the latest in automation controls from Rockwell Automation. The unique combination of proprietary Rockwell Automation controls and software, combined with our extensive experience in process design and enhancements with hundreds of materials provides an unparalleled experience for customers seeking innovative process solutions and equipment.
Indirect-fired kilns are used for various processing applications, such as when processing must occur in an inert environment, when working with finely divided solids, or when the processing environment must be tightly controlled.
Calcination refers to the process of heating a material to a temperature that will cause chemical dissociation (chemical separation). This process is used frequently in the creation of inorganic materials, for example, the dissociation of calcium carbonate to create calcium oxide and carbon dioxide.
Thermal desorption is also a separation process. This process uses heat to drive off a volatile component, such as a pesticide, from an inorganic mineral, such as sand. The component is vaporized at the increased temperature, causing a separation without combustion. In some cases, an indirect rotary kiln would be best for this application, because the volatile chemicals may be combustible. The indirect kiln will supply the heat for desorption, without the material coming into direct contact with the flame.
Organic combustion refers to the treatment of organic wastes with the intent of reducing mass and volume. Organic waste is treated in the kiln, leaving behind an ash with considerably less mass and volume. This allows for more efficient and effective deposit of waste materials into landfills.
Sintering is the process of heating a raw material to the point just before melting. This increases the strength of the material, and is commonly used in the proppant industry, where sand or ceramic materials are made stronger.
Heat setting involves bonding a heat resistant core mineral with another, less heat resistant coating material. Unlike an unheated coating process, here, a rotary kiln heats the coating material to just below liquefaction point, allowing it to coat the heat resistant core more evenly and more securely. This process is commonly seen in the manufacture of roofing granules, where a mineral such as granite is coated with a colored pigment, producing a product that is both durable and aesthetically pleasing.
Reduction roasting is the removal of oxygen from a component of an ore usually by using carbon monoxide (CO). The CO is typically supplied by mixing a carbonaceous material such as coal or coke with the ore or by feeding it separately. Examples are the reduction roasting of a hematite containing material to produce magnetite that can be magnetically separated. In the Waelz process, zinc oxide in steel mill wastes is reduced to metallic zinc and volatilized for recovery in the off-gas system.
Thermal Desorption for Spent CatalystsRotary Kiln3D Indirect Kiln for Activated CarbonPyrolysis Kiln Seal3D FEECO Pyrolysis KilnPyrolysis KilnWorn Rotary Kiln RefractoryKiln Alignment SoftwareBatch Rotary Kiln TestingProcessing Challenges When Working with Rotary KilnsFEECO Batch Kiln BrochureIndustry Focus COVID-19 Demands Medical Waste Incineration CapacityIndirect Fired Rotary Kiln ReplacementRotary Kiln IncineratorsResource of the Week: Thermal Testing with Kilns3D Model of a FEECO Carbon Activation KilnRotary Kiln Testing ThumbnailRotary Kiln TestingIndirect Batch Rotary Kiln Testing, Batch Calciner Testing, Thermal Process DevelopmentKnowing When its Time to Replace Your Rotary Drum Seal, Leaf SealRotary Drum Drive ComponentsRotary Drum BreechingReplacement Rotary Drum BearingsBoomin Catalyst Market Drives Demand for Rotary Kiln Repair Services, Rotary KilnsReplacement Dryer (Drier) and Kiln BurnersCombustion ChambersReplacement Rotary Drum ShellRotary Drum Laser Alignment Process, Rotary Drum AlignmentWhy Post Maintenance Alignment is Critical to Rotary DrumsCauses of Tire (Tyre) and Trunnion Wear, Rotary Drum TireFEECO Tire (Tyre) Grinding Machine, Tire and Trunnion Grinding in ProgressRotary Drum Tire (Tyre) Wear Pattern from Excessive Wheel Skewing, Rotary Drum Tire in Need of Tire GrindingRotary Drum Tire (Tyre) Wear Pattern from Poor Housekeeping Practices, Rotary Drum Tire in Need of Tire GrindingRotary Drum Tire (Tyre) Wear Pattern from Misalignment, Rotary Drum Tire in Need of Tire GrindingRotary Drum Tire (Tyre) Wear Pattern from Using Improper Tire Lubricant, Rotary Drum Tire in Need of Tire GrindingTire (Tyre) and Trunnion Wheel GrindingTire (Tyre) and Trunnion GrindingIndirect Rotary Kiln (Calciner) for Plastics PyrolysisPlastic to Fuel Conversion via Pyrolysis Replacement Rotary Drum PartsRotary Drum Thrust RollersRotary Drum Trunnion Wheels (Rollers)Rotary Drum Riding Ring (Tire/Tyre)Resource of the Week: Girth Gears PageRotary Kiln System Optimization, Rotary Kiln Process AuditSpring-Mounted Replacement Rotary Drum Girth GearRotary Kiln Gains Traction as E-Waste Crisis Looms, Metal Recovery from E-WasteIndirect Batch Rotary Kiln Testing, Batch Calciner Testing, Thermal Process Development, Metal RecoveryDirect-Fired Rotary KilnRotary Kiln Chain and Sprocket Drive AssemblyRotary Kiln Gear and Pinion Drive AssemblyRotary Kiln Friction Drive AssemblyRotary Kiln Direct Drive AssemblyRotary Kiln Trunnion BaseRotary kiln end dam for increasing loading, retention time, and bed depthResource of the Week: Rotary Kiln Customization Slideshare PresentationKaolin Clay CalcinationLithium-ion Battery Recycling OpportunitiesRotary Kilns in Expanded Clay Aggregate ProductionBatch Kiln for Testing Expanded Clay AggregatesRotary Kiln Refractory Failure Illustration, Rotary Kiln Shell Hot SpotRotary Kiln Refractory InspectionDirect-Fired Rotary Kiln for SpodumeneCalciner (Indirect Kiln) for Lithium Recovery from SpodumeneRotary Kiln Complete SystemFEECO Batch Kiln for Testing CalcinationRotary Drum Drive BaseRotary Kilns for Advanced Thermal Processing in SustainabilityResource of the Week: Project Profile on a Rotary Kiln (Calciner) Resource Recovery SystemResource of the Week: Tire Grinding BrochureResource of the Week: Slideshare Presentation on Rotary Kiln Sizing and DesignResource of the Week: Unitized Drive Base BrochureDiagram Showing a Rotary Kiln with Co-current AirflowDiagram Showing a Rotary Kiln with Counter Current AirflowDiagram Showing Co-current Airflow
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The advantages to a FEECO rotary kiln are that it is built to the highest quality standards and is backed by over 60 years of process design experience. The FEECO Innovation Center offers batch and pilot scale kilns that can simulate conditions in continuous commercial rotary kilns, allowing our customers to test small samples of material under various process conditions, as well as part of a continuous process. With options in both co-current and counter-current flow, and direct or indirect configurations, the FEECO test kilns offer a variety of options to suit your thermal testing needs. We also offer support equipment such as a combustion chamber, afterburner, baghouse, and wet scrubber for testing.
best clothes dryers in 2021 | tom's guide
The best clothes dryers will sap the moisture from your clothes while also making sure they stay soft, fluffy, and free of wrinkles. There's no need to worry about shrinking, overheating, or the horror of seeing your energy bills fly off into the stratosphere. But the best part? They're not loud or slow either.
Drying your clothes properly can also help protect your clothes from diseases like COVID-19, provided you wash them at the warmest possible setting and completely dry them without shaking in the air. Then there are the dryers with built-in sanitizing or anti-bacterial cycles.
Deciding on the best clothes dryers is dependent on your circumstances, and how much laundry you do. Budget, location, load size, it all counts. And that's before you consider all the hi-tech features you might want to embrace. But whatever your circumstances, these are the best clothes dryers you can buy right now.
The best clothes dryer for most people is theLG DLEX3570W. It offers superior drying performance, has truly useful features like a sanitizing mode and wrinkle prevention, and doesnt make a racket when its operating. And although it uses steam, it doesnt require a connection to a water pipe.
If youre on a budget, the best choice is the Maytag MEDC465HW. It only comes in white and doesnt have fancy features like steam and a Wi-Fi connection but it will get your clothes dry and even has a sensor to monitor moisture and temperature to prevent your favorite tees from overheating and shrinking up.
We know that for many of you how big a load you can dry at once is a big concern, so several of our top picks have huge drums that can handle a teams worth of towels. For those of you who can afford top dollar and are looking to design an upscale laundry room, we have recommendations for top-of-the-line dryers, with lots of bells and whistles, and that can coordinate with a sophisticated front-loading washer.
One thing to note: We arent recommending any combination washer/dryer models, which wash and dry in a single device. That's because, while they save space, these units tend to be much less reliable as well as a lot less efficient than single purpose machines. Reliability is critical for laundry appliances: Not only do you depend on them every day, but a failure can mean a flood or other home disaster.
The LG DLEX400W is the best clothes dryer overall. With its large capacity and a dozen drying cycles, it can handle everything from lacy camisoles to a comforter the size of New Hampshire. It knows exactly when to end the drying process, thanks to built-in moisture sensors, so it wont be overheating your clothes. If you choose Wrinkle Care, it will periodically tumble your clothes without heat until you remove them from the dryer, preventing creases from setting in.
On the LG youll find one steam mode to remove wrinkles and another to both sanitize and remove odors. The steam feature doesn't require a permanent water connection either; you fill a pull-out container on the front of the dryer with water as and when you need it. You can also monitor and control this dryer remotely using the LG ThinQ app, as well as Alexa and Google Assistant. Available in white or graphite, it can be mounted on a pedestal to match a front-loading washer.
Only available in white with dial controls and without a window in the door, this basic dryer offers good performance but wont dress up your laundry room. However, it does have a sensor to monitor moisture and air temperatures and a Wrinkle Control option to keep clothes tumbling after theyve dried so that crinkles dont become permanent. But at this price theres no steam, no sanitize, no apps, and no little tunes to let you know when things are done. Reviewers did find that it ran a little hot, which could be an issue with delicate fabrics.
The EFME627UTT is the best clothes dryer for those looking for an effective steam cycle to prevent wrinkles as it dries or do a quick fresh up to remove wrinkles and odors. Its the companion dryer to the Electrolux EFLS627UTT, our top pick for a washing machine. Reviewers praised this dryer's performance, saying that it efficiently dried even large loads. While a few found that it took longer to dry than similarly-priced models, it also dries at a lower and therefore gentler temperature. At this price, it is surprising that it lacks smart-home features.
When youre in a hurry to get your Little Leaguers uniform dried, there is a 15-minute quick-dry cycle designed for small loads. Reviewers also liked the efficient double-sided lint filter. You can opt to stack this model on top of a washer or install it on a pedestal to pair with a front-loading washer. It comes in white or titanium.
TheGE GTD65EBSJWS is one of the best clothes dryers you can buy if youre looking to economize.Just dont expect this basic white model to add any pizazz to your laundry room. While it doesnt have steam, it does have moisture sensors and a feature to prevent wrinkling.
One thing that reviewers note is that this GE tends to leave clothes very slightly damp. This seems to be a deliberate decision, with the designers preferring that it under-dry rather heat them for too long and risk damaging or shrinking them. If youre one of those people who likes to iron everything right out of the dryer, youll love the alert that that lets you know when your clothes are still damp so you wont have to spritz them as you iron.
A cavernous 9 cu. ft. drum makes theLG DLEX9000V the best clothes dryer for large families. Its the companion piece to the LG WM9000HVA, our pick for the best washer with an enormous capacity. This dryers large size combined with 14 cycles makes it an incredibly flexible machine that that can handle small or humongous loads with equally impressive performance. Among its most useful features are its two steam cycles, a 10-minute wrinkle remover, and a sanitizing mode thats great for drying bedding after everyone in the house has been sick.
This is also one of the few dryers with smart-home features: Download the LG SmartThinQ app and monitor and control it from your smartphone. You can also give it orders via Alexa or Google Assistant. Available in a graphite finish and able to sit on a pedestal to match a front-loading washer, this machine is definitely a major upgrade for your laundry room.
Looking for a clothes dryer that is smarter than average? TheSamsung DVE50R8500V/A3is our top pick for a clothes dryer with smart home controls. Like most of Samsung's appliances, its as easy to control with Samsung'sSmartThingsas with its on-board controls.Samsung's app lets you monitor the drying process, so you can see how long the cycle has to run, and then pings you when the load is dry. Unfortunately, there isn't an app to move the clothes from the washer to the dryer for you: perhaps the next generation.
On this machine youll find a vent sensor to alert you when you have to clean the exhaust vent as well as a lint filter indicator that lights up when the lint basket needs to be emptied. You can get this luxury dryer in white or black stainless steel and either stack it or mount it on a riser to coordinate with a washer that loads from the front.
Gas or Electric?
This choice will usually be made for you by which connection is available in your basement or laundry room. Most dryers use electricity as a power source, but you can't just plug them into a standard socket. Instead, they need a specially wired, two-phase 220-volt socket that can handle more power than your standard wall socket. We've focused on electric models for this guide, but the manufacturers usually offer a similar gas option: check their site for details.
In addition to a power source, dryers will also require an air vent for the hot air they push out. Again, this will often limit where you can put the dryer, as you need to keep the connection to this vent as short as possible. This vent also should not be curved or bent, as corners provide a place for lint to gather, which can pose a fire risk.
Will it fit?
If you are planning on putting your washer and dryer into a small space or under a counter, make sure that you measure the space to make sure it will fit. Most dryers are front-loaders, but many also put the controls on the top, so they won't work under a standard worktop.
The National Association of Home Builders says that a clothes dryer has a lifespan of about 13 years, yet you'll rarely see warranties for more than a year. Extended warranties generally cost more than the repairs they cover, so we recommend skipping the common upsell.
When the cost of a repair is fifty percent or more than the price of a new dryer, you should consider shopping for a replacement. Some of the signs that you may be in for a major repair are thumping or clanging noises, lack of heat, or a malfunctioning control panel. Also look out for a failure to start or a tendency to shut off in the middle of a cycle. A burning smell may or may not indicate the need for an expensive repair, but it could mean theres a risk of fire so it definitely means you should call for a service visit.
There are definite advantages to newer models. Any Energy Star certified dryer uses 20% less energy and saves you about $215 during its lifetime, making it frugal as well as environmentally friendly.
Other energy-saving features include moisture sensors that detect how damp your clothes are and end the cycle when the load is dry. Cycles that use steam to get rid of wrinkles and reduce static, others that sanitize to get rid of germs, and ones tailored to small loads are now common. For safety, some dryers alert you when the lint filter needs to be emptied or even when the duct is blocked. New dryers even prevent unwanted creases by keeping clothes tumbling without heat instead of letting them sit until you remove a finished load.
Increasingly, dryers are equipped with WiFi, allowing you to see the progress of your load on your mobile device and control the cycle from your phone or Alexa or Google Assistant. Connected dryers may even be able to diagnose problems and in some cases, alert the manufacturer's service center so that the repair person can bring the right part on the first visit and eliminate a second one.
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rotary dryer -china henan zhengzhou mining machinery co.,ltd
After the welding of bases for supporting devices of supporting roller and catching roller, vibration aging treatment should be applied for remove the welding stress. Then, use vertical lathe and boring-milling machine for integration fabrication. This process can guarantee the requirement of fabrication precision and dimension & location tolerance. Installation accuracy of rotary kiln is obviously improved.
Rotary dryers are known as the workhorse of industrial dryers. They are able to process a wide variety of materials, and can lend a hand in nearly any industry requiring industrial drying solutions.The material inside the rotary dryer has heat exchange with the high temperature flue gas through shell rotating and material lifting by lifter.
Therotary dryerhas many good characters like: high drying efficiency, big capacity, high running rate, saving energy, easy for maintenance, long working life. Variety angle of the lifter will increase the heating exchange rate and short drying time.
Rotary dryer is mainly compose of driving device, supporting roller, thrust roller, cylinder, kiln inlet, kiln outlet and sealing device.
1. 2-3 supporting points can guarantee the contacting surface between supporting roller and tyre is paralleled with axis line of cylinder during installation.
2. Supporting device is antifriction bearing (occasionally uses slide bearing). This design has simplified the supporting device of supporting roller, and reduced the useless power loss during operation. It has the features like easy operation and maintenance.
3. Suitable shim between tire and shell will ensure the tire ring on the shell tightly to increase the shell strength.
4. The main driving system uses new type AC variable frequency technology. Compared with electromagnetic speed control and DC speed control, that can save energy, have large range & high precision of speed regulation, high efficiency and running smoothly.
5. Radial direction contacting type sealing device is adopted at kiln inlet and outlet. They are perfect suitable for dimension tolerance of cylinder and skewing movement of cylinder. This sealing devices feature is good performance, longer working life and easy for replacement.