rotary dryer 0.1446 m 2

rotary dryer design & working principle

rotary dryer design & working principle

For evaporating moisture from concentrates or other products from plant operations, Rotary Dryers are designed and constructed for high efficiency and economy in fuel consumption.Whenever possible to apply heat direct to the material to be dried, Rotary Dryers of the Direct Heating Design are used. If it is not possible to apply heat direct to the material to be dried, Rotary Dryers of the Indirect Heating Design can be furnished so that the heated gases will not come in direct contact with the material.

Rotary Dryer is a simple, inexpensive unit for reducing the moisture content of flotation concentrates, as well as chemical and industrial products. Frequently the saving of shipping weight so effected will pay for the dryer in a few months. Difficulties from freezing while in transit are also eliminated. Many industrial projects are now using Dryers for control and production purposes on many materials.

Three main types of Rotary Dryers can be supplied. The direct heat unit is used when it is permissible for the drying gases to come in direct contact with the material being dried. Partition plates increase the heating surface. Drying may be by hot air or exhaust gases from other operations. If this drying gas has a deleterious effect on the product, then an indirect type of dryer can be supplied. A further derivation is the Tedrow Steam Dryer.

Of the different types of dryers that there are the most common is the ROTARY DRUM DRYER/Kiln, This type of drier is common not only in the mining industry but you will find them in fertilizer plants, Cement plants, and peat hogs to name but a few.

The theories behind these machines are very simple, heat an air space up, and then tumble the material to be dried through this space until it is dried. All though it sounds simple there are problems that have to be solved before the required results are met. But first, so you know what we are talking about lets go through the design of a drier.

First is the KILN, this provides the heat, The BURNER is inside this portion. The fuel for the burner is usually diesel although heavy crude oil could be used in some cases. To be able to generate enough heat to dry the concentrate air must be added by way of a BLOWER. In front of the kiln is the point that the wet concentrate enters the drier. It is put into the revolving SHELL. The shell is on a slight incline. As the Concentrate is tumbled through the hot air mass of the drier it travels down this incline to the exit of the drier.

At this exit point the concentrate is either deposited straight into a storage area or taken to the storage area by a conveyor. It is also at this point that there is an EXHAUST HOOD. This provides a controlled escape passage for the fumes and water vapor that is generated by the concentrate drying. This is a very important function and the operator will have to be sure that it is open at all times. If it should become blocked the water vapor will not be able to escape. The concentrate will become wet and sticky which will result in the discharge plugging. The wet sticky concentrate will also lower efficiency level of the drier for an extended period of time. This happens because inside the drier shell are what are termed FLIGHTS these are flat pieces of metal that are bolted onto the shell.

They are there to lift the concentrate up to the top of the shells rotation and drop the concentrate through the hot air. If the water vapor isnt taken away, the concentrate becomes sticky from reabsorbing the water. This sticky concentrate will fill the spaces between the flights.

The concentrate will not be lifted and dropped through the hot air. This results in a long term condition of poor performance even after the initial problem has been cured. These flights will remain buried in concentrate. This removal of the water vapor is one of the functions of the blower. It assists the natural process of air movement as the hot air mass expands. To prevent the buildup of concentrate on the flights there are often CHAINS attached to them. As the drier revolves the chains slap the flights preventing concentrate from building up on dryers walls.

The drier shell is rotated separately from the stationary kiln section. To achieve the rotation a BULL GEAR is attached around the shell section. There are also two flat rings attached to the shell. These provide surfaces for support rollers to roll on. There is another problem that the inclined shell has, the incline causes the shell to want to slide in the direction of the incline. To prevent this additional rollers are attached to the last set of rollers.

brabantia rotary clotheslines that suits you! | brabantia

brabantia rotary clotheslines that suits you! | brabantia

Ahhhhhh, the fragrance of washing being dried outdoors: we all love it! And if you thinkabout how much electricity a rotary clothesline will save you, you will savour the freshfragrance even more! Our smart and sturdy rotary clotheslines bring it all to life. ViewBrabantia's range of rotary clotheslines.

The cheapest dryer is a rotary clothesline. Drying your laundry outdoors is better for the planet, saves you money and you get that lovely fresh air scent for free. And did you know keeping your clothes out of the tumble dryer extends their life? Bonus: Sun and wind are doing some great work in removing creases in your clothing. All Brabantia rotary clotheslines are fully weatherproof, strong and sturdy, but also easyto move and open. The clothesline we use is super sturdy and easy to put up thanks tothe rotary systems clever 'umbrella-system'. And, of course, you get a 5 yearwarranty onevery Brabantia rotary clothesline.

Trees cool the planet, provide food, wood and jobs. Thats why Brabantia works with WeForest, an international non-profit association dedicated to reforestation to prevent desertification. Together we have planted over 2.2 million trees in the Africa project and counting! Buy a rotary dryer or drying rack, and we'll plant more trees.

Are you at a loss on how you can accommodate all your laundry? Thats quite logical, withthe huge selection in rotary clotheslines. And that's why we will explain the differences foryou, one by one. To make sure you choose theperfect rotary clothesline byBrabantia. Watch our short video too, and discover all thebenefits.

Are you at a loss on how you can accommodate all your laundry? Thats quite logical, withthe huge selection in rotary clotheslines. And that's why we will explain the differences foryou, one by one. To make sure you choose theperfect rotary clothesline byBrabantia. Watch our short video too, and discover all thebenefits.

Laundry day really becomes a great day with the super light, easy to operate Lift-O-MaticAdvance rotary clothesline. It works like a charm and thanks to the Easy-Lift system, yousimply adjust it to your ideal working height (between 149 and 197 centimetres). Even theclotheslines are of super quality: UV-resistant, strong and non-slip. It has eyelets on all4arms, in which you can hang a coat hanger. Useful for dresses and other delicate pieces ofclothing which you really don't want to crease. The Advance rotary clothesline comes with aweather-resistant storage bag you can easily pull on and off. You also get a weatherresistant washing peg bag, so no more searching for your pegs. Your ideal rotary clotheslinehas a lockable plastic bottom case that allows you to easily anchor it in concrete, withoutany tripping hazard. The same applies for the separately available 50 mm lockable metalground spike for firm anchoring without concrete. So doing the laundry becomes fun again!

Would you rather train your arm muscles in the gym than while putting up the washing?Brabantia makes life lighter with the Lift-O-Matic, a drying tower that lets you hang outyour washing without having to dance on your toes. Adjust the dryer smoothly to yourideal working height (between 129 and 187 centimetres) and turn it around to hang upyour washing. Putting up the washing has never been this easy. Of course, this adjustablerotary clothesline also has extra sturdy UV-resistant anti-slip lines, which always remainstretched tight. It also has an eyelet at the end of its arms, in which you can hang a coathanger. And it is easy to store it with its sturdy suspension hook. You can buythe Lift-O-Matic rotary clothesline including a rock-solid metal ground anchor, with whichyou can fit it deep in the ground. Without concrete and without raised edges. With the 45 mm lockable plastic bottom sleeve, you can easily fit the Brabantia rotary clothesline inconcrete. And with the weather-resistant protective storage cover, you can protect itagainst wind and weather!Handy-O-matic!

Is your garden too small for a regular rotary clothesline? You don't want to leave yourrotary clothesline standing, but you also don't want to drag it around? Or would you ratherbuy a small rotary clothesline for use on your balcony or even indoors? The BrabantiaWallFix wall dryer fulfils all your needs. The WallFix with 24 metres of drying line is a uniquewall-mounted dryer. Flip it out and you can hang out a whole load of washing. And largepieces too, because its outer lines are 120 cm wide. All clotheslines are also extra strong,UV-resistant and come with a non-slip profile so your washing stays on the line. Iseverything dry? Then you just push your WallFix back against the wall. The WallFix isperfectly wind and rain resistant, and you can offer added protection with the convenientstorage bag or the solid stainless steel storage box. Buy it in our webshop, simply hang it onthe wall, and all your washing and drying problems are solved.

Brabantia makes hanging out the laundry fun with the Topspinner rotary clothesline. Leaveyour laundry basket in one place, just turn your rotary clothesline and hang your washingwhere you want. The Topspinner really is a top turner, even if it is completely covered inlaundry. But thats not all: the rotary clothesline is easy to open, and it has extra strong,UV-resistant anti-slip clotheslines. Thanks to the clever umbrella system, the lines are alsoalways tight.The eyelet for clothes hangers and the solid suspension hook also score points. You canbuy the Topspinner rotary clothesline including a sturdy metal ground anchor for fitting itin your garden, without concrete and without tripping. There is also a 45 mm lockableplastic bottom case available that allows you to easily anchor it in concrete. You canprotect your Brabantia rotary clothesline against the weather with a weather resistantcover. The cover is available separately, as well as all kinds of other fun laundryaccessories.

Our Essential rotary clothesline is small enough not to get in the way, standing in yourgarden or shed, but large enough for a lot of laundry. This clever gadget simply opens likean umbrella, so the extra sturdy, UV-resistant clothesline is always perfectly tight. We evengave the clothesline a clever non-slip profile, and ensured it is easy to replace - after all,it's the little things that matter. And this little rotary clothesline has even more surprises foryou, like its sturdy suspension hook and the possibility of hanging a coat hanger at the endof its arms. The Essential drying tower has a lockable plastic bottom case that allows youto easily anchor it in concrete, without any tripping hazard. The same applies to the 35mm lockable metal ground spike for firm anchoring without concrete. To continue enjoyingyour Brabantia Essential rotary clothesline, you can even order a weatherproof protectivecase with zipper with it. Now, if everything could be this easy.

Looking for accessories for your rotary clothesline? We are also happy to help with that.Maybe you're looking for a rotary clothesline base to attach it to, or you would like a coverfor extra protection. Or what about clothes pegs, which are of course indispensable whenputting up the laundry? Luckily, you will find all the accessories for doing the laundry atBrabantia.

Are you looking for a rotary clothesline promotion? Then keep an eye on ouroutlet page.You will find all the Brabantia products on promotion, on this page. Maybe your rotaryclothesline will be included? If you can't find it there and you really want to buy a rotaryclothesline, check out all our rotary clotheslines and simply buy it online!

buying a rotary clothesline? check out our wide range! | brabantia

buying a rotary clothesline? check out our wide range! | brabantia

Read more about our rotary clotheslines. Mmmmm, do you also love the smell of laundry drying outside? If you think about how much electricity a rotary clothesline will save you, you will savour it even more! And drying your laundry outside will be just great with a smart and sturdy rotary clothesline from Brabantia.

With a Brabantia rotary clothesline, you let nature do its work. Hang your laundry on a rotary clothesline, and let it dry in the fresh air. The wonderful fragrance of nature and freshness will be embedded in your clothing. The extensive range of rotary clotheslines has something to offer for every household. Choose between a drying pole with 40, 50 or 60 metres of clothesline. You can also choose whether the drying pole should be adjustable. If you don't have space in the garden to install a drying pole, you can opt for the Brabantia WallFix too. The WallFix is easy to mount on the wall, and takes up little space. So you can easily dry your laundry outdoors. Which rotary clothesline will you choose?

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