Dewo machinery can provides complete set of crushing and screening line, including Hydraulic Cone Crusher, Jaw Crusher, Impact Crusher, Vertical Shaft Impact Crusher (Sand Making Machine), fixed and movable rock crushing line, but also provides turnkey project for cement production line, ore beneficiation production line and drying production line. Dewo Machinery can provide high quality products, as well as customized optimized technical proposal and one station after- sales service.
Features The output of the rotary kiln is stable and suitable for large, medium and small active lime production lines. 1.The rotary kiln is open-type calcination. 2.The rotary kiln can directly calcine 10~50mm fine-grained limestone.
In calcination process, lime is cooked/calcined at 800c in a kiln.We are providing shafts kilns and rotary kilns for calcining of limestone/lime sludge with multi fuel options. Prior to calcination, exhaust gases of kiln preheat lime. And after coming out of calcination area, quicklime is cooled by direct contact with cooling air.
Lime processing plant is often equipped with either rotary lime kiln or vertical lime kiln. For lime kiln is the core equipment of the plant to produce burnt lime. Of course, except lime kiln, there are also other machines in the lime calcination plant.
We cater for Hydrated Lime Plants, Quick Lime Plants, and Precipitated Calcium Carbonate Plant among the lime plants technology. We provide lime plants including lime processing plant and lime processing machinery that incorporate the latest technologies to ensure effective and reliable operation at maximum production.
Lime Rotary Kiln/lime Processing Plant/active Making Machinery , Find Complete Details about Lime Rotary Kiln/lime Processing Plant/active Making Machinery,Lime Rotary Kiln/lime Processing Plant/active Lime Making Machinery,Lime Rotary Kiln/kiln,Lime Rotary Kiln/dolomite Rotary Calcination Kiln from Cement Making Machinery Supplier or Manufacturer-Zhengzhou Jiangtai Heavy Industrial Machinery ...
Large 1,000+ ton/day capacity Vertical Lime Kilns are possible, are very energy efficient and easy to operate. Minimal maintenance is required, because the limestone is brought to the top and into the kiln. Then the limestone is burned (calcined) for a specified time of hours to produce powdered lime.
As a kind of rotary kiln, the lime kiln, also called active lime rotary kiln, is the main equipment used to calcine active lime, consisting of the drum body, the supporting device, the supporting device with hydraulic retaining wheel, the device, the device, the device for kiln tail.
Having a sound small business credit score, outstanding after-sales services and modern manufacturing facilities, we've got earned an fantastic reputation among our buyers across the globe for Calcination Of Limestone In Rotary Kiln, Quick Lime Manufacturer, Coal Gasifier In Myanmar, Lime Types And Applications, We are one of the largest 100% manufacturers in China. Many large trading companies import products from us, so we can give you the best price with the same quality if you are interested in us. With dependable high quality approach, great reputation and excellent customer support, the series of products and solutions produced by our firm are exported to lots of countries and regions for Calcination Of Limestone In Rotary Kiln, The development of our company not only needs the guarantee of quality, reasonable price and perfect service, but also relies on our customer's trust and support! In the future, we will continue with the most professional and high quality service to provide the most competitive price, Together with our customers and achieve win-win! Welcome to inquiry and consult!
Lime rotary kiln is also called roller rotary kiln. To make sure its air leakage coefficient is less than 10 percent, lime rotary kiln adopts advanced structure and reliable combined scale-like seal in both ends. It also uses composite refractory to reduce the loss of heat radiation.
Lime rotary kilns whole process is well-regulated. The limestone is stored in a silo. Then be carried in preheaters top silo by hoist. There are two-level gauges in silo to control the feed amount. They distribute limestone evenly into different preheaters rooms through feed pipe.
Limestone is decomposed 30% when it is heated to 900 by hot smoke at 1150 . After being pushed into the kiln by a hydraulic push rod, lime is resolved into CaO and CO2. Then be cooled down to 100 by cold air in cooler and then be discharged.
After successively through vibrating feeder, chain bucket conveyor, bucket elevator and tape conveyor, lime eventually is sent into lime finished product library. Then the clients decide whether screening is needed.
Lime rotary kiln has a reliable combined scale-like seal. The scale-like seal in both ends guarantees its air leakage coefficient is less than 10 percent. It also uses composite refractory to reduce the loss of heat radiation.
Lime rotary kiln has a vertical cooler. The filled cooler with dividable ventilation cools down the lime into 80 making it easier to be transported and stored. And it can preheat the secondary kiln air up to more than 700, which reduces the need for moving parts and special materials.
3. Pay attention to the details of the lime rotary kiln below. The gradient of preheater and precalciner should be 3.5%-4%. Precalciners maximum speed should be 3.0-3.5r/min while preheaters should be 2.0-2.5r/min. The speed range should be 1:10.
We intention to see quality disfigurement within the creation and supply the ideal support to domestic and overseas buyers wholeheartedly for Calcination Of Limestone, Professional Manufacturer Vertical Shaft Lime Kiln, Lime Putty, Manufacture Of Quicklime, We believe that a passionate, innovative and well-trained team will be able to establish good and mutually beneficial business relationships with you soon. Please feel free to contact us for more details. High-quality comes 1st; assistance is foremost; business enterprise is cooperation" is our business enterprise philosophy which is constantly observed and pursued by our business for Calcination Of Limestone, Actually need to any of those objects be of interest to you, make sure you allow us to know. We'll be delighted to present you a quotation on receipt of one's comprehensive specs. We've our individual specialist R&D enginners to meet any of the requriements, We look forward to receiving your enquires soon and hope to have the chance to work together with you inside the future. Welcome to take a look at our organization.
Limestone with a particle size of 10 to 50 mm is transported to the plant site, stacked in the stockyard, and the loader is operated by the stockyard. The material with qualified particle size is loaded into the receiving trough set by the loading yard by the loader, and the feeding material is quantitatively fed by the feeding trough, and the stone material is fed to the large dip angle conveyor, and then sent to the screening building, and the limestone is screened. After being weighed, the qualified particle size is weighed and sent to the top silo of the preheater by the large angle conveyor. The powder under the sieve is sent to the yard by the 3# conveyor and is regularly transported by the forklift.
Limestone calcination is composed of vertical preheater + rotary kiln + vertical cooler, the output is 100~800t/d, and the material is introduced into the preheater body from the top silo of the preheater through the discharge chute, and the rotary kiln is also The incoming high-temperature flue gas preheats the material to above 1000 C, so that the limestone is partially decomposed, and then pushed into the tail of the rotary kiln by hydraulic push rods. After being calcined at a high temperature in the rotary kiln, it is discharged into the cooler and blown through the fan. Cooling by cold air, the material is cooled to ambient temperature +60 C below the cooler. The air blown through the cooler enters the rotary kiln as secondary air to participate in combustion.
The finished lime is discharged from the cooler and transported to the finished lime storage via a chain conveyor, bucket elevator and belt conveyor. The lime silo discharge valve is used to transport the lime in the silo into the car and the tanker. Set different sizes of silos according to customer reserve requirements.
The high-temperature flue gas generated by the combustion of the rotary kiln is cooled to below 250 C after heat exchange with the limestone in the preheater, and then into the cyclone dust collector for primary dust collection, and the large particles of dust are collected, and then It enters the bag type dust collector and is discharged into the atmosphere by a high-temperature fan after dust removal. The dustconcentration of the exhaust gas is less than 30mg/m3. A cold air control system is installed at the inlet of the dust collector to protect the dust collector.
3.The vertical preheater at the kiln tail can make full use of the high temperature flue gas generated by calcination in the rotary kiln, and preheat the limestone from the normal temperature to the initial decomposition state.
5.The flue gas discharged through the vertical preheater of the kiln is low in temperature and low in dust content, so that the configuration of the subsequent flue gas treatment is simple and efficient, and meets environmental protection requirements.
An experimental study of the calcination of limestone has been carried out in a highly instrumented pilot-scale rotary kiln. Local gas, solids, and wall temperatures and pct calcination have been measured under a range of operating conditions to determine the influence of limestone type, feed rate, rotational speed, inclination angle, and particle size on calcination and heat flow in the kiln. Thus, it has been found that the local calcination is dependent primarily on the solids temperature and hence on heat transfer. Of the variables studied, the limestone feed rate has the strongest effect on the temperature and calcination fields, whereas inclination angle and rotational speed are relatively less important. The different limestones studied exhibited significant differences in heat-absorption capacity and calcination temperature which may be related to their radiative properties. Increasing particle size over a range of 0.75 to 3.5 mm resulted in an increase in both heat transfer to the bed and calcination.