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rotary dryer power consumption

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.

infrared rotary dryer - flying tiger kj co., ltd

infrared rotary dryer - flying tiger kj co., ltd

1. Spend 30~60 minutes to change amorphous PET to crystallized PET first. 2. Under 200PPM after about 4 hours dehumidifier processed. 3. Under 50 PPM after about more than 6 hoursdehumidifier processed.

1.Buffer tank 2.Auto loader 3.Material receiver 4.Auto-cleaning vortex cyclone 5.Dehumidifying dryer 6.Vortex cyclone 7.Dust collector of bag type 8.Insulated & dust-free hopper dryer

1.Please keep maintenance space of drum. 2.IR lamps are not warranty parts. 3.If PET material is dried again about 1.0~1.5 with smaller dehumidifier after KIRD processed, to further reduce the moisture content desired, it can increase the IV value of PET material too. 4.We reserve the right to change specifications without prior notice.

steam sludge dryer zhengzhou taida drying equipment co.,ltd

steam sludge dryer zhengzhou taida drying equipment co.,ltd

TDGD steam rotary drum dryer mainly contains feeding part, dryer body, riding wheel, catch wheel, transmission device, seal device and discharging part. Dryer body is a large heat exchanger itself. Materials will exchange heat with steam in dryer so that to reach drying aim. TDGD dryer can use both steam and conduction oil as heat source. Heat medium will enter dryer through steam rotary joint and transfer heat to materials and internal air. Then, heat medium will be condensed into liquid and discharged out from drainage port. Flow amount of heating source (taking 0.6Mpa saturated steam as example) will be controlled by regulating valve first before entering front rotary joint of dryer. Then, heating source will enter distribution tube and row-pipe in sequence. After heat releasing and condensing, heating source will be discharged to rotary joint at discharging and enter condensation trap for water discharging and air lock. Condensing water will be further disposed out of system. In order to make sure tail gas emission up to standard, wet steam will be led out from feeding end and enters wet type dust removing machine and gas-liquid separating machine in sequence. Dust removing machine is equipped with porcelain ring material and two-layer scrubbing device inside. Clean water will drop down to contact with upward gas counter currently. Tail gas is purified. Purified gas will be discharged to atmosphere through ID fan. Once reaching to a certain data, scrubbing water shall be sent back to evaporation and crystallization section. After thickening and separation, clean water will be pumped to scrubbing tower for further use so that to fulfill cycle running of scrubbing water.

Technical advantages of Taeda steam rotar drum dryer <1> It adopts conduction heating mode, thermal efficiency is 20% and 50% higher than traditional drying machine. <2> Use of hot wind is very less, which causes small burden for exhaust system. Drying system consumes less power consumption. With less dust and emission amount, high material recycling rate and good environment protection effect. <3> Suitable for large scale production. <4> Materials will stay long time in dryer, no need back-mixing procedure. Final products are with uniform moisture and stable quality. Materials are driven forward by lifting plate and inclination angle. Residence time can be adjusted so that to avoid over drying. <5> Simple operation, less malfunction rate and low management expense.

Sludge materials to be dried will be send to feeding inlet of dryer through screw feeder. There can be vibrating hammer set out of dryer. The vibrating hammer will beat dryer shell along with the drum rotation so that to avoid wall sticking of wet materials. Wet materials will move to discharging end gradually from feeding end. During the movement process, wet materials will constantly exchange heat with steam tubes. After preheating, temperature increasing and drying, moisture in wet materials are evaporated and enters discharging end. Dry material will be sent to next process after grinding and crushing.

Taeda always put people at first place. It adheres to fair distribution principle and build talent mechanism which combines competition with encouragement. It leads a road to cooperate with universities. Cultivate talents while utilizing talents. It devotes to cultivate all-round talents with good skills and management abilities in order to forge a famous brand and strong enterprise.

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rotary drum drying machine

rotary drum drying machine

Product IntroductionProduct introductionRotary dryer is one of the traditional drying equipments. It has reliable operation, large operation flexibility, strong adaptability and large processing capacity. It is widely used in metallurgy, building materials, chemical industry

Rotary dryer is one of the traditional drying equipments. It has reliable operation, large operation flexibility, strong adaptability and large processing capacity. It is widely used in metallurgy, building materials, chemical industry, coal washing, fertilizer, ore, sand, clay, kaolin, sugar, etc. Field, diameter: 1000-4000, the length is determined according to the drying requirements. In the center of the tumble dryer, the breaking mechanism can be avoided, and the wet material entering the drying cylinder is repeatedly picked up and thrown by the copy board on the wall of the rotating cylinder, and is broken into fine particles by thedispersing device during the falling process. The specific area is greatly increased, and it is in full contact with the hot air and dried.

4.The dryer has the characteristics of high temperature resistance and can quickly dry materials with high temperature hot air. The scalability is strong and the design takes into account the production margin.

The rotary dryer is mainly composed of a rotating body, a lifting plate, a transmission device, a supporting device and a sealing ring. The dried wet material is sent to the hopper by a belt conveyor or a bucket elevator, and then fed through the hopper through the feeding pipe into the feed end. The slope of the feeding pipe is greater than the natural inclination of the material so that the material flows smoothly into the dryer. The dryer cylinder is a rotating cylinder that is slightly inclined to the horizontal. The material is added from the higher end, the heat carrier enters from the lower end, and is in countercurrent contact with the material, and the heat carrier and the material are simultaneously flowed into the cylinder. As the rotating material of the cylinder is moved by gravity to the lower end. During the forward movement of the wet material in the cylinder body, the heat supply of the heat carrier is directly or indirectly obtained, so that the wet material is dried, and then sent out at the discharge end through a belt conveyor or a screw conveyor.

rotary dryer - zhongde heavy industries co.,ltd

rotary dryer - zhongde heavy industries co.,ltd

The hot air rotary dryer is one of the indirect heat transfer dryers and one of the commonly used dryers. The equipment is a double-shaft stirring and spiral propelling high-wet viscous material quick-drying machine, which is suitable for drying high-viscosity and high-humidity materials. The hot air rotary dryer can dry the high-humidity material with less than 65% of initial water content to the final water content of 5-12% or less, and the drying time is short, generally 2-20 minutes.

The moisture evaporates quickly in the first half of the hot air rotary dryer, and the hot air temperature in the hot air rotary dryer drops sharply. Therefore, even if the hot air rotary dryer uses high temperature hot air, the temperature rise of the material is not high.

Hot air rotary dryer can dry sludge, gypsum, slime, bentonite, peat, and other high-humidity materials. After drying by hot air rotary dryer, the particle size of the material is 2-5mm, and the temperature of the material is not high during the drying process, which is suitable for heat sensitive materials.

High energy saving and low consumption: The power consumption is 1/4~1/3 of the vertical type, and the gas consumption is 1/2~2/3 of the vertical type. The solar efficiency is 10%~15% of current horizontal type, and the length is 20%~30% of horizontal type, saving a lot of lubricating oil and maintenance costs in one year.

The softening effect is very good: the horizontal drum structure is adopted, the energy consumption is low, the power is small, the material machine is turned evenly, the dead angle is overcome, and the softening effect is good.

The air dryer has a large drying strength: the airflow rotary dryer has a high airflow speed, and the material is well dispersed in the gas phase, and the entire surface of the material can be used as a dry effective area. Therefore, the limited area of drying is greatly increased. At the same time, the gasification surface is continuously renewed due to the dispersion and agitation during drying, and therefore, the drying heat transfer process is strong.

Short drying time: The contact time between material and air is extremely short, and the drying time is generally 0.5~5 seconds. It will not cause overheating or decomposition of heat sensitive or low melting materials and affect its quality.

High thermal efficiency: airflow drying uses materials and gas to co-current operation. The material temperature and air temperature can reach a reasonable state from the beginning to the end, and the drying time is short, so a higher drying temperature can be used.

NOTE: please feel free to fill out the form below in detail and you can also send a message to us([email protected]) we will send you latest price within 24 hours.Besides, you can click Chat Online on the right hand side to get quotation online

rotary drum dryers mdg & md & nd - atlas copco usa

rotary drum dryers mdg & md & nd - atlas copco usa

ISO 22000 certification for our oil-free production facility in Antwerp, Belgium. The food safety management system is applicable to all our Z type class 0 oil-free air compressors and related dryers and filters

A drum type heat of compression dryer offers an energy-efficient way to produce dry air. Its a perfect match for your oil-free screw or centrifugal compressors. It uses the heat generated in the compression process to regenerate the desiccant. This heat is typically wasted in twin tower drying technologies. Our rotary drum dryers completely avoid the loss of compressed air. They need a minimal amount of power to achieve very low dew points

rotary dryers - an overview | sciencedirect topics

rotary dryers - an overview | sciencedirect topics

Rotary dryers are mainly used in the chemical and mineral industry. In the area of food, their most common applications are for dehydrating waste materials (citrus peels, vegetable trimmings) and animal feedstuffs (alfalfa). Rotary dryers consist of a metal cylinder with internal flights or louvers (Fig. 22.21). The cylinder is slightly inclined. The material is fed at the high end and discharged at the low end. Hot air is blown in cocurrent or countercurrent direction. As the cylinder rotates, the material climbs in the direction of rotation. When it reaches a position where its angle of repose has been exceeded, the material falls back to the bottom of the cylinder (Fig. 22.21). Most of the drying takes place while the material falls through the air blast. Using very hot air or combustion gases, rotary dryers can also function as roasters for nuts, sesame seeds, and cocoa beans. A detailed method for the design of rotary dryers, based on a heat exchange approach has been described by Nonhebel (1971).

Rotary dryers are often used for particulate material. Particles and hot air are continually fed to the drum. These large rotating drums have lifting flights which carry the particles upward as the drum rotates. The particles leave the lifting flight near the top of the drum and fall through the air stream. Heat is transferred to the particles both from the air and from contact with the dryer. The drums may have concentric sections so that the particles and air traverse the length of the drum up to three times. Residence time is on the order of minutes. Friable material, such as wafers or flakes, may be dried on trays or belts instead of in drums. Very fine material, such as fiber board furnish, might be dried in a tube dryer in which the air carries the fiber through the tube in seconds.

For particulate solids, a rotary dryer may help promote uniform and more rapid drying (Fig. 14.14). In the rotary cascade dryer, the material is placed in a rotating cylinder through which a hot air stream is passed. Flights on the cylinder wall lift and cascade the product through the air. In a variant, louvers are used instead of flights so that the product is mixed and rolled instead of dropped. The dryer is typically sloped, so that the product enters and gradually falls toward the discharge end. In direct rotary dryers, the air is passed through burners, and directly comingles with the product. Rotary dryers have been used to dry seeds, corn gluten, distillers grains, and some fruit.

A rice combine harvester usually performs with less loss of paddy; however, the potential shortcoming is that the paddy must be harvested at high moisture content, that is, ranging from 20% to 28%. The high moisture content of harvested paddy is conducive to rapid deterioration in quality such as discoloration, yellowing, germinating, and damage to milling quality.

The only practical means of preventing grain quality deterioration is immediate drying of high moisture paddy, because sun drying, the conventional method, is inadequate to guarantee the quality and quantity of the produce. Thus there is a high demand for mechanical drying facilities.

Most mechanical dryers available are suitable for rice millers and farm cooperatives that handle thousands of tons of paddy. Small-scale dryers were developed for farm use, such as a fixed bed dryer and solar rice dryer (Exell and Kornsakoo, 1977); however, those were not widely accepted because of the potential inconvenience in loading/unloading of paddy and unequal drying.

Jindal and Obaldo (1986) and Puechkamutr (1988) worked on accelerated drying of high moisture paddy using conduction heating for a rotary dryer. Their studies demonstrated the potential of high temperature for quick drying of paddy without significant damage to the grain. This technique is promising from an energy consumption point of view.

Puechkamutr (1985) developed a rotary dryer for paddy based on conduction and natural convection heating. Paddy was effectively dried from moisture content of 23% to 16% (w.b.) using a pipe heat exchanger at surface temperatures of 170C200C with a residence time of 3070s. Rapid drying and good milling quality of the paddy could be achieved with such a dryer.

A combination conductionconvection heating type rotary dryer was developed for on-farm drying as a first stage. It consisted of double cylinders: the external cylinder with 500mm diameter, attached to an inside surface with straight flight; and an inner cylinder, hexagonal in shape with an outer tray and firing device installed inside as a part of the inlet cylinder. The grain cascaded inside the external cylinder with a concurrent flow of air. Experimental results showed that about 3% of moisture content could be removed with single pass with a small reduction in milling quality (Likitrattanaporn, 1996).

Another study of a combined conductionconvection type rotary drum dryer was made by Regalado and Madamba (1997) on thermal efficiency. The fresh ambient air forced inside the drum in a counter flow direction of grain brought evaporative cooling of the hot grain as shown by the increase in moisture reduction whenever air velocity was increased.

A further improved prototype of a combined conductionconvection type rotary drum dryer used ambient air that was forced inside the drum in counter flow to the direction of the cascading grains. The grain was heated by conduction heating as drying proceeded and followed by convection heating as cooling occurred of the heated grain. The results showed that its partial drying capacity was approximately double that of the predryer developed by the International Rice Research Institute requiring only a single pass operation. Neither drum surface temperature nor ambient air velocity and their interaction influenced total milling recovery and head rice recovery.

Likitrattanaporn et al. (2003) designed and developed a combined conduction and convection heating rotary dryer for 0.5t/h capacity using liquefied petroleum gas (LPG) as the heat source, to dry high moisture paddy under farm conditions. The main aim was to find an affordable way of drying field paddy on the day of harvesting to facilitate handling and for higher returns of produce for the farmer. Emphasis was placed on operating conditions in which up to 3% moisture could be removed in a short time while grain quality should be closed to fresh paddy. Performance of the rotary dryer in terms of moisture removal, residence time, energy consumption, and milling quality were evaluated.

An experimental rotary dryer designed with concurrent flow system comprising two primary parts, a double cylinder and a discharge cover, is shown in Fig. 12.1. Forward movement of paddy takes place by inclination angle and rotary motion of the cylinder, while air is blown through the cylinder by the suction fan located on top of the discharge cover. A 1-hp motor with 1:60 reduction gear was used for driving the rotary dryer. The LPG lamp on the entry end heats up the air and heated air moves to other end by suction fan. During forward motion, paddy first contacts the outer surface of the inner cylinder where conduction heating takes place followed by a cascading action along the inside of the external cylinder resulting in convection heating. After this the paddy falls into the discharge cover and out of the dryer, while the suction fan sucks the moist air.

Relatively less moisture was removed during the last (third) pass at temperatures of 100C and 110C, that is, 1.5% and 1.7%, respectively. At 120C temperature, moisture content of 2.1% could be removed. Clearly, this is because there was less free water available at the third pass of drying.

The conduction and convection zones are shown in Fig. 12.2, along with the inlet and outlet temperatures of grain and the hot air. It can be seen that high temperature in the conduction zone can remove a higher amount of water than in the convection zone, which is, in turn, sucked out by hot moist air. It can also be observed that outlet grain temperature was dropped to the safe range (max. 52C) within a very short time (23min).

To demonstrate the dryers heat exchange efficiency, comparison of the effects of conduction heating and convection heating on moisture removal showed that the major moisture content of paddy was removed by the conduction heating for all temperatures, whereas the convection heating could remove moisture less than 0.4%.

Being designed as a mobile unit for drying paddy in the field, energy consumption is one of the most important aspects of consideration. The difference in weight before and after running a pass was recorded. A statistically insignificant difference was found in weight of LPG consumed at all temperatures. The average power consumption was, however, 0.6kWh and power of 0.46kg/h LPG. It was estimated that the operating cost of removing up to 1% of the moisture content of 1t of paddy was $0.23 in the first pass. The cost would increase up to $0.33 in the second pass and subsequently increase in the third pass depending on the availability of free moisture.

Likitrattanaporn et al. (2003) designed and developed a combined conduction and convection heating rotary dryer for 0.5ton hr1 capacity using liquefied petroleum gas (LPG) as the heat source, in order to dry high moisture paddy under farm conditions. The main aim was to find an affordable way of drying field paddy on the day of harvesting to facilitate handling and for higher returns of produce for the farmer. Emphasis was placed on operating conditions in which up to 3% moisture could be removed in a short time while grain quality should be closed to fresh paddy. Performance of the rotary dryer in terms of moisture removal, residence time, energy consumption, and milling quality were evaluated.

An experimental rotary dryer designed with concurrent flow system comprising two primary parts; a double cylinder and a discharge cover is shown in Figure 10.1. Forward movement of paddy takes place by inclination angle and rotary motion of the cylinder, while air is blown through the cylinder by the suction fan located on top of the discharge cover. A one horse power motor with 1:60 reduction gear was used for driving the rotary dryer. The LPG lamp on the entry end heats up the air and heated air moves to other end by suction fan. During forward motion, paddy first contacts the outer surface of the inner cylinder where conduction heating takes place followed by a cascading action along the inside of the external cylinder resulting in convection heating. After this the paddy falls into the discharge cover and out of the dryer, while the suction fan sucks the moist air.

Relatively less moisture was removed during the last (third) pass at temperatures of 100C and 110C, i.e. 1.5% and 1.7%, respectively. At 120C temperature, moisture content of 2.1% could be removed. Clearly, this is because there was less free water available at the third pass of drying.

The conduction and convection zones are shown in Figure 10.2, along with the inlet and outlet temperatures of grain and the hot air. It can be seen that high temperature in the conduction zone can remove a higher amount of water than in the convection zone which is, in turn, sucked out by hot moist air. It can also be observed that outlet grain temperature was dropped to the safe range (max. 52C) within a very short time (23min).

To demonstrate the dryers heat exchange efficiency, comparison of the effects of conduction heating and convection heating on moisture removal showed that the major moisture content of paddy was removed by the conduction heating for all temperatures, whereas the convection heating could remove moisture less than 0.4%.

Being designed as a mobile unit for drying paddy in the field, energy consumption is one of the most important aspects of consideration. The difference in weight before and after running a pass was recorded. A statistically insignificant difference was found in weight of LPG consumed at all temperatures. The average power consumption was, however, 0.6KWh and power of 0.46kg/hr LPG. It was estimated that the operating cost of removing up to 1% of the moisture content of 1 tonne of paddy was 0.23$ in the first pass. The cost would increase up to 0.33$ in the second pass, and subsequently increase in the third pass depending on the availability of free moisture.

Dried citrus peel is one of the most common feeds. It is manufactured by pressing peel through a rotary dryer and adding citrus molasses to help the drying process and help prevent the peel from burning. The moisture content of dried peel must be below 10%. Many experiments published in the 1970s have shown that dried orange pulp, partially or completely replacing cereals in concentrate mixtures, are particularly useful in reducing feeding costs in dairy cows, have no influence on production, and have a good palatability. Dried pulp has also been used in swine, which have been shown to utilize it at a ratio of up to 2025%. Besides its use as a substitute for maize, up to 20% in diet has no influence on the growth and production of laying hens. The dried pulp can be pelletized and is consumed more easily by ruminants with advantages of storage, shipping, and microbial spoilage. Pellets made from dried pulp have different dimensions, and several factors affect their characteristics, such as the energy used in pelletizing and the proportions of citrus molasses (about 515% of the total weight gives excellent results) used as binding agents.

Thermal desorption is a technology of physical separation based on heating the contaminated soil to volatilize water and organic contaminants. Soils are heated in a thermal desorption system, the rotary dryer being the most commonly used equipment. Thesystems require the treatment of the off-gas to remove particlesand contaminants. Its effectiveness depends on the contaminant. Decontaminated soil usually returns to the original site. Based on the operating temperature, these processes can be categorized into two groups: high-temperature thermal desorption ranging from 320 to 560C and low-temperature thermal desorption ranging from 90 to 320C. Thermal desorption can be used in a place where some other cleanup methods cannot be used, such as at sites that have a high soil contamination, and can be a soil remediation method that is faster than others.

Thermal methods may also be applied as an in situ technique. In this case, heat is applied to soil to volatilize semivolatile organic compounds (SVOCs), which can be extracted via collection wells and treated. It is a particular case of SVE. Heat can be introduced into the subsurface by electrical resistance heating, radio frequency heating, or injection of hot air or steam. Thermal methods can be particularly useful for dense nonaqueous phase liquids (DNAPLs) or light nonaqueous phase liquids (LNAPLs).

ge appliances support & troubleshooting guides by product category

ge appliances support & troubleshooting guides by product category

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rotary drum drying machine | reduce moisture | temperature resistance

rotary drum drying machine | reduce moisture | temperature resistance

Rotary drum drying machine is widely used in organic fertilizer making plants. Its main function is drying different kinds of fertilizer raw materials or final pellets into appropriate moisture content. The rotating drum dryer equipment is a kind of necessary equipment for all kind of organic fertilizer and compound fertilizer producing factories. Using it, the post management of fertilizer products can be much easier and efficient.

Our rotary drum drying machine consists of a rotary drum, lifting plates, transmission, support device and sealing ring. The dryer mainly is a slightly sloping drum. The fertilizer materials are added from the higher end, the hot flue gas and the material flow into the drum at the same time. With the rotating of the drum, the organic fertilizer materials will move to the lower end of the rotary drum.

There are many lifting plates on the inner wall of the drum, which can pick up and sprinkle the fertilizer materials down, so that the contact area between the materials and the airflow is enlarged to improve the drying efficiency. At last, the dried product flows from the bottom outlet to the next procedure.

1. High degree of mechanization brings it larger working capacity. Meanwhile, it consumes lower fuel and when working, it doesnt need people to operate. That can greatly reduce your cost on hiring operators. 2. Our rotary drum drying machine has good characteristics of high temperature resistance, that ensures the high temperature hot air can dry fertilizer materials quickly. And this kind of drying machine is much more efficient than the traditional dryers.

3. The distribution and angle design of the lifting plates are very reasonable, making the performance of the machine more reliable and the operation more stable. Therefore, it greatly improve the heat energy utilization rate and reduce the frequency of material cleaning. 4. It has excellent application to different fertilizer materials such as poultry manure, livestock, mushrooms, straw powder, saw dust and so on. No matter which kind of materials, our rotating drying machine can work well for you. 5. While the fertilizer materials are drying, our drying machine can also sterilize and deodorize them. That not only makes fertilizers with suitable moisture, but also makes them have better quality.

In wet granulation method fertilizer making line, the drying machine is very helpful to dry fertilizer granules. As we know, the raw materials granulated by wet granulation equipment always have high moisture. Before granulating, the materials always need to be dehydrated with about 30% moisture content by the solid-liquid separator machine. But this value is not suitable to the final granules. To bring granules more compact structure and improve their hardness, the drying machine is needed. After drying, its much easier to transport and store the fertilizer granules.

Fresh chicken manure always has high moisture content. Before making them into fertilizer, its very necessary to reduce the moisture content. If you have a small scale factory of making chicken manure fertilizer pellets, you can choose our small drying machine. It can dry 1-5 tons of chicken manure per hour, the power consumption is 7.5 kw/h. Unlike the solid-liquid separator machine reducing the manure moisture content to about 30%, it can dry chicken manure to a very low moisture content at one time. You can make the dried chicken dung into pellets directly by using dry fertilizer granulating machine. With it, the process of your small chicken litter fertilizer plant will be more simple, which can save you a lot of money.

For 5-12t/h complex fertilizer production line, we have medium capacity drying machine can work for you. Its can dry the final compound fertilizer granules. Our customers always use them for limestone, sulphur or npk fertilizer plants. With high working efficiency, it can bring the pellets better hardness, prevent the compound balls from caking. The fertility can be more stable.

We also have large size fertilizer dryer with capacity of 14-18t/h. Excellent working ability makes it only costs 45 kw power per hour. Moreover, our large drying machine is almost suitable for all kinds of fertilizer plants. Using high performance parts and metallic materials, it has stable structure and the revolutionary design prolongs its working life greatly.

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