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compound fertilizer dryer

fertilizer dryer--gate compound fertilizer granulator/granulation equipment

fertilizer dryer--gate compound fertilizer granulator/granulation equipment

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rotary drum dryer: best selection of fertilizer drying machine | fote machinery

rotary drum dryer: best selection of fertilizer drying machine | fote machinery

Drying, an indispensable process in the fertilizer production process, directly affects yield, quality and energy consumption. The rotary drum dryer can dry fertilizers with a moisture content of 70%-80% to 13%, which is an ideal machine for drying chemical fertilizers.

In the fertilizer production process, all kinds of chemical fertilizers need to be dried, including nitrogen fertilizer, phosphate fertilizer, potash fertilizer, compound (NPK) fertilizer, compost fertilizer, organic fertilizer, etc.

The granulated fertilizer granules have high moisture content and are relatively humid. Moreover, the particles are easily crushed by hand with low strength, which does not meet the requirements of packaging and transportation.

The quality index of fertilizer requires that its water content should be lower than 14%, but the water content of the granules after granulation generally exceeds the index, so a rotary drum dryer is required for drying.

With this liquid phase, organic fertilizers are easy to be pelleted with good viscosity, so the pellet formation rate is high with uniform particle size, low water content, which improves production yield.

As the rotary drum dryer is a heat conduction machine and the heat transfer direction is basically consistent throughout the heat transfer cycle, therefore, most of the heat supplied in the rotary drum is used for the moisture vaporization of materials and the thermal efficiency is up to 80% ~ 90%.

The heat and mass transfer of the wet film on the cylinder wall is from the inside to the outside with consistent direction and large temperature gradient, so the surface of organic fertilizer maintains a high evaporation intensity, generally up to 3070 kg/(m2.h).

After the heat preservation of the cylinder body is implemented, due to the reduction of body heat dissipation, the temperature of the inner wall rises, and the temperature drop of the hot air slows down, thereby accelerating the heat transfer speed and improving the heat transfer efficiency.

Because the heating mode is easy to control, the temperature inside the cylinder and the heat transfer rate of the partition can be kept relatively stable. As the material is dried under the heat transfer state, the quality of fertilizer can be guaranteed.

The residence time of organic fertilizer in a rotary dryer is generally > 22 min. Under the same conditions, the longer the dryer barrel is, the longer the material stays and the higher the thermal energy utilization rate is. Therefore, lengthening the dryer cylinder is very beneficial to make full use of heat energy.

For example, the blower should be equipped with a valve at the air inlet, which can increase the air volume of the blower to increase the temperature in the furnace when the furnace temperature is insufficient; as well as reduce the air volume to lower the temperature in the furnace if the temperature is too high.

In order to avoid the death of effective live bacteria due to high temperature during the drying process, the drying temperature of compound fertilizers should not be higher than 60. The temperature of the hot air in contact with the material generally does not exceed 130C.

When producing compound fertilizer with urea as the nitrogen source, it is safer to control the head temperature of the rotary dryer below 160C and the tail part to 70C to prevent the decomposition and softening grain deformation of urea.

Organic fertilizers are easy to melt and stick to the wall in high temperature, it increases the load of the equipment, so the lifting function of the plate in the rotary dryer cannot be fully exerted and the effect of heat exchange is reduced. The material will be hard to be dried and rounded. Equipment cleaning difficulties will also occur.

The reason is that the pH value of monoammonium phosphate is particularly low, so its reaction with ammonium bicarbonate is particularly strong, resulting in more bubbles (CO2 emission). Over time, the particles in therotary dryer become loose and then turn to powder.

Solution: Add other alkaline materials, such as calcium magnesium phosphate fertilizer or bitter soil, instead of ammonium bicarbonate, so that it only undergoes acid-base neutralization reaction without any bubbles generated.

Solution: Try to cool down the temperature of the material in the granulation area to 60~65. There are several ways: a. Add an appropriate amount of water to the mixer, about 2%; b. Add less steam and more water in the granulator; c. Lower the drying temperature to lower the return temperature.

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Based on the high quality and complete after-sales service, our products have been exported to more than 120 countries and regions. Fote Machinery has been the choice of more than 200,000 customers.

compound fertilizer dryer|compound fertilizer drying machine-fote machinery

compound fertilizer dryer|compound fertilizer drying machine-fote machinery

Compound fertilizer dryer is mainly used in the production of organic compound fertilizer. The distribution and angle of the lifting plate is reasonably designed, with reliable performance, thus compound fertilizer drying machine has advantages of high thermal energy utilization, uniform drying, less number of times to clean material, convenient maintenance and so on.

1. It has high mechanical degree and large production capacity, and continuous operation is OK. 2. Compound fertilizer drying machine has simple structure, smooth running when materials pass through the cylinder, and ease operation. 3. Compound fertilizer dryer has less troubles, low maintenance cost and low power consumption. 4. Compound fertilizer drying machine has wide application, and good uniformity of product drying. 5. Compound fertilizer dryer machine can achieve the purpose of sterilization and deodorization while drying materials.

Compound fertilizer dryer is fed on the stock guide of compound fertilizer dryer via chute, along with the rotating of barrel, compound fertilizer will be led to inclined lifting plate lifted up to central location of dryer tube, and then gradually fell down like a curtain, so the high-temperature air flowing through it can preheat and evaporate moisture in materials. When the compound fertilizer fell down and spilled on grate-wing, the material will be mixed together with preheated grate plate wing, so that part of water in material can be evaporated. At the same time, wings entrained materials lift and fall many times, for materials fully contact with hot air convection and heat exchange. Along with the rotating of cylinder, part water in material can be evaporated, and compound fertilizer can be further dried. Finally, the dried compound fertilizer with low moisture content is loose material and be discharged through discharge port.

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rotary dryer for drying organic & inorganic fertilizer granules

rotary dryer for drying organic & inorganic fertilizer granules

Rotary Drum Dryer Introduction Rotary Drum Dryer is a kind of internal heating conduction drying machine.It is widely used in food industry, chemical industry, pharmaceuticals industry, etc. In fertilizer production, it main application is to dry compound and organic fertilizer granules, and is installed behind fertilizer granulator. After drying, the humidity of fertilizer granules will decrease from 20%-30% to 2%-5% and for bio-organic fertilizer, the moisture content will decrease to 10%. With ideal drying effect and high efficiency, rotary drying machine is the best choice for mass compound fertilizer production. Working Principle of Fertilizer Drying Equipment When the machine starts working, since the drum is slightly tilted, the wet materials flows into the hopper of the rotary drum dryer by belt conveyor or bucket elevator, meanwhile the hot air produced by the hot blast stove enters into the dryer drum, thus making the materials and the hot air mix completely. While the drying machine is rotating, the well-dried materials are collected from the other side and sent to the cooler by the belt conveyor.

Features of Organic Fertilizer Dryer Machine 1.High heating efficiency. Since the heat-transfer mechanism of this organic fertilizer dryer belongs to heat conduction, the conducting direction is concordant in the whole operating process, therefore most of the heat is used for drying except for the loss of heat radiation. The heating efficiency can reach 80%-90%. 2.High operation flexibility and wide application. Changing one of the many factors that affect drum drying, such as drum speed, material properties, the drying efficiency will be different.This advantage makes drying machine suitable for the different drying requirements and productivities of multiple materials. 3.Short Drying Time. Usually, the drying period of the fertilizer only has 10-300 seconds. It is very suitable for heat-sensitive materials. 4.High drying rate. Because the resit film inside the drum is very thin and the direction of heating conduction is concordant, the surface of the film can keep intense evaporation of 20-70 kgH2o/mh. 5.Fully automatic control, strong overloading capacity resistance.

Application of Rotary Drum Dryer Rotary drum dryer can be use in many fields, including organic fertilizer&compound fertilizer, bio-mass pellet industry, feed and agriculture industry, building materials drying, metallurgy and chemical industry, mining industries. Most of materials from these fields are OK like manure waste, wood sawdust, straw,ores, crystals,etc. So in fertilizer production, it can excellently finish its task. Technical Data of Rotary Drum Fertilizer Drying Machine

rotary dryer | compost fertilizer drying machine for sale

rotary dryer | compost fertilizer drying machine for sale

The rotary drier is used for compost pellets drying. There are moisture requirements for organic materials composition and pelleting. After compost granulation, granular fertilizer need drying for stocking and packaging. In ShunXin fertilizer machinery, there are common used fertilizer dries, rotary drier, and scraper type fluidize dryer for your compost pellets drying applications. The rotary drying facility is mainly used for powdery, granular or sticky composts drying. It features rotary drum structure and gear transmission system. ShunXin is a rotary dryer specialties Inc.

There are main three components consists of the entire rotary drum dryer. There is rotary dryer vent cleaner installed on the rotary drier. This design enables winds force into the machines drums. The drum design of the rotary drier enables the machine dry materials in a large capacity. Meanwhile it also let the fertilizer dry thoroughly with this rotary structure. The transmission gear can let the drier work efficiently. All the drier accessories are designed with leading material drying technologies. You can process your moisture granular composts safely and efficiently.

The dry air flows into the rotary drum through the furnace room. The burnt soot and the water vapor generated by the drying are discharged by the smoking dust removing device through the exhaust pipe. The gas temperature of the inlet cylinder is tested by a thermocouple on the feed chamber, and the furnace temperature is adjusted by controlling the amount of coal burned and the flow of natural wind. The material enters the rotating cylinder from the inlet, and the material is continuously flipped and thrown away, so that the material maintains good contact with the dry hot gas, and the heat exchange is achieved, so that the material can be dried. The cylinder of the dryer is supported on the retaining wheel device and the roller device by the front and rear rolling rings, and the retaining wheel on the retaining wheel device prevents the cylinder from moving forward and backward. The transmission is driven by the motor through the cycloid reducer to drive the simplified upper gear. Sealing device is arranged at both ends of the cylinder to prevent cold air from entering the cylinder and the combustion chamber into the cylinder of the flue gas, dust overflow, the cylinder, the feeding chamber and the discharge chamber. The collected materials can be cleaned.

Humidity is also one of the key issues for fertilizer plants to manage. Excessive humidity leads to equipment corrosion and affects the machines service life; in the production workshop, electrical appliances, over humidity fertilizers often cause electrical discharge or burnout; humid air is conductive, which may cause short circuit of electrical appliances and pose a threat to operators life and property. Humidity is one of the key problems that restrict the production of water-soluble fertilizer. Because in the process of water-soluble fertilizer production, some materials contain crystal water, which is easy to absorb moisture. The contact area between material and air in the production process is large, due to the high humidity in the air. It will cause agglomeration of water soluble fertilizer. Therefore, solving the problem of water-soluble fertilizer absorption is the current urgent task of enterprises. Facilitating a drier for your fertilizer plants is quite necessary.

The fertilizer itself is formulated from various salt crystals and a small amount of auxiliary materials. In the presence of moisture, a chemical reaction can take place between the ingredients of the ingredients to form a double salt and a solid tour. These reactions can even be extended to the finished product after packaging. Therefore, in the production of fertilizers, it is necessary to fully understand the compatibility between the raw materials, and if necessary, in the material pretreatment period, such as pretreatment of the superphosphate, to control the reaction of the release of crystal water inside the compound fertilizer.

Agglomeration is a property in which a substance changes from a loose state to a mass or a whole. This transformation, whether it is a finished substance or an amorphous substance, may occur. The agglomeration of fertilizer has a great relationship with humidity. When the surface of the material absorbs water, it will form a saturated guest liquid. After that, due to evaporation of water or absorption by other dry materials, the dissolved components will precipitate and precipitate crystals due to the surface of the material. The process of dissolution and recrystallization is continuously performed, forming a crystal bridge leading to agglomeration.

When the raw material absorbs water, some materials will be sticky, which will result in poor fluidity of the material. It is easy to hang on the side wall of the production equipment during the production process of the fertilizer, and the thicker and thicker, the flow layer and the blanking passage become smaller, resulting in poor feeding, affecting the stability of the ingredients.

ShunXin compost rotary drier for sale can dry organic fertilizers, compound fertilizers, and there are also some types of driers can dry organic materials, such as sawdust, sludge, any configurations, the company can tailor to you.

fertilizer dryer | working principle | tech | rotary drum dryer design

fertilizer dryer | working principle | tech | rotary drum dryer design

Fertilizer dryer is a machine for drying pelleted fertilizer. It can not only dry fertilizer granular, but also can dry fresh animal waste, such as cow dung, chicken waste, horse manure, poultry waste, etc. This machine utilizes aeration-drying technology for lowering the moisture content of materials. Our company rotary drum drying machine employs advanced designs for making your drying process more efficient and convenient. Especially, we can also provide you professional suggestions, machines at favorable price.

Fertilizer dryer is a key equipment in fertilizer production line. It can dry pelleted organic or compound fertilizer well. Drying machine utilizes aeration-drying technology for drying materials. Our rotary drum dryer takes advantages of hot blast furnace for supplying air. The hot air will dry the materials inside the cylinder. Meanwhile, the rotating cylinder will make the drying effects better. Then the materials will be dried evenly. For your information, using a rotating drum dryer, you can use oil, gas, bio-mass and coal as fuel for supplying air. Whats more, you had better control the drying temperature well. At the same time, the temperature requirements will be different because of the different materials properties.

An organic fertilizer production line includes 5 part: fermentation, preparation for granulating, pelletizing, pelleted organic fertilizer processing and packing. While, what is the role of organic fertilizer dryer? It is a process for making pelleted organic fertilizer better. Here you can see how does it work for processing fertilizer granules.

After the granulating, the granules will be in a high temperature and moisture content. Because the organic fertilizer granulation machines all uses wet granulation technology for pelletzing. At this time, you need a fertilizer drying machine for lowering its moisture content.

Generally, it often be used with a cooling machine. After the drying, there will be many droplets on the surface of dried organic fertilizers granules. Whats more, the temperature of organic fertilizer granular will be high. And then the cooler will not only lower the pellets temperature, but also cool these droplets. Finally, you can get well processed organic fertilizer pellets.

For your information, you can use it for your cow dung organic fertilizer production line. And it is also an important machine in compound fertilizer production process. Especially, when you use pan granulation machine, wet stirring granulator and drum fertilizer pellet machine for granulating, this drying machine will help you make pellets in a better status.

Our rotary dryer consists of heat resource, feeding machine, rotating cylinder, transmission, discharging device and induced draft fan. We use advanced concept on designing, making the roller dryer works better.

The fertilizer dryer is a popular machine in not only fertilizer making process, but also animal farm. It can not only dry granulated fertilizers, but also fresh organic animal waste. It can dry has high moisture content organic manure to 13%. And then you can use these materials for making feed, transporting, storing and even selling. Then do you know how does it dry material?

When you use a bucket elevator for feeding materials from the feeding device, the materials will be flowing inside the rotating cylinder because of the gravity. Meanwhile, the induced draft fan will send hot air to cylinder for heat exchanging with wet materials. For your information, the hot blast furnace supplies hot air to dry. The hot air will flow from bottom to the top. And it will send heat to materials by heat conduction, convection and so on. Then the materials will be high temperature. Meanwhile, the water will become droplet on the surface of pellets. Finally, the well dried materials will be out from discharging port.

If you are looking for a fertilizer dryer, it is important for you to find an experienced fertilizer equipment manufacturer. Meanwhile, it will be better if the fertilizer drying machine supplier has its own factory. That means you can not only get high-quality equipment, but also factory price.

Zhengzhou Shunxin Engineering Equipment Co., Ltd. will be a good choice for you. We have been making fertilizer machines for many years. Our fertilizer making machines are manufactured by our own factory. Whats more, our engineers have professional and advanced knowledge for making high-quality fertilizer machines. Especially, we can also customize your own fertilizer equipment. Whether you want to buy a fertilizer drying machine for your large or small scale fertilizer manufacturing, we can meet your needs. Meanwhile, according to your different materials, we can recommend the most suitable machines for you.

* Basic Info Your Raw Materials (required) Your Processing Capacities Per Hour or Day (required) Brief-description Your Inquiry *We respect your privacy, and will not share your personal information with other entities.

* Basic Info Your Raw Materials (required) Your Processing Capacities Per Hour or Day (required) Brief-description Your Inquiry *We respect your privacy, and will not share your personal information with other entities.

rotary drum dryer | drying process | reasonal price

rotary drum dryer | drying process | reasonal price

SHUNXIN rotary drum dryer is widely used to dry humidity materials in many industries. You can use it in fertilizer production, coal mining, metallurgical and chemical industries and so on. When you use it to process fertilizer pellets, it is usually placed after granulation machines. And after drying, you can get fertilizer with a lower water content, which is convenient for your storage and transportation.

Granules that have just come out of the dryer cannot be packed immediately, because of a relatively high temperature. If you want to quickly reduce the temperature of the fertilizer pellets, using SHUNXIN rotary drum cooling machine will be a right decision.

The belt conveyor is an important equipment to connect the drum dryer with other machines. It can help you to form a complete drying system. In addition, a complete drying system can work efficiently and continuously.

And we can provide you with three types of dust collectors, namely cyclone dust collector, water curtain dust collector and bag filter dust collector. You can choose a suitable dust collector for your fertilizer producing plant.

For example, we have rotary drum dryers with different capacities. You can buy a 1-4t/h drum drying machine for your small fertilizer plant. And you can also choose a large rotary drum dryer with 12-14t/h capacity. Generally speaking, the price of rotary dryer with large capacity will be higher than that of small capacity. However, although the price of the dryer will vary with the change in processing capacities, all our drying equipment price is lower.

ShunXin is a leader among Chinese fertilizer equipment manufacturers. We are experinced in producing professional equipment for fertilizer production and solving all kinds of problems of making organic & compound fertilizer process. As a large fertilizer equipment supplier, we insist on using high quality fertilizer equipment which make the production process more enviroment frendly and economic to impress customers.

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