Double-Layer Rotary Drum Dryer_Drying Equipment_Products

TONY Double-Layer Rotary Drum Dryer adopts low-speed rotarying curved plate hammering, dispersing raw material to make the high temperature air flow current mixed with raw materialto achieve the drying work. TONY Double-Layer Rotary Drum Dryer design Reasonable, well-produced, stable performance, advanced technology, high output, low energy consumption, small footprint and high degree of mechanization. After the improvement of applicability of our technical personnel, the effect is very good in the treatment of high-humidity materials. TONY Double-Layer Rotary Drum Dryer is used to dry wood chips, sawdust or other biomass from moisture 55% to 10%. In order to ensure the output capacity. TONY also have Single-Layer Rotary Drum Dryer, And Three-Layer Rotary Drum Dryer.

TONY Double-Layer Rotary Drum Dryer adopts frequency conversion speed regulation, Speed can be adjusted according to humidity of raw materials, it is a single layer drum dryer with hot stove.

Hot stove is built from firebrick pan,and has H steel and iron plate frame.It has three layers of fire resistance inside,which can prevent Mars from entering the rotary drum dryer,It can use coal,waste wood ,palm fiber or all kinds of biomass as fuel.

TONY Double-Layer Rotary Drum Dryer is easy to operate and stable to operate. TONY Double-Layer Rotary Drum Dryeris an important part of biomass fuel production equipment. By drying wood chips, they can be further pelletized to produce combustible biomass fuel. Sawdust dryer plays a vital role in the recycling of biomass fuel and is of great significance to promote economic development and environmental protection. Our professional Double-Layer Rotary Drum Dryer has played an important role in various drying industries, Double-Layer Rotary Drum Dryer is used for drying materials with humidity or granularity in the industries of mineral dressing, building material, metallurgy, and chemical. Double-Layer Rotary Drum Dryer can be used for drying many kinds of materials and with the convenient and reliable operation; therefore, it has been widely used.

Function Of The Inner Cylinder: The inner cylinder's wall has spiral blades. As it rotates, these blades continuously shovel and toss the material. This makes the material roll within the inner cylinder due to gravity, speeding up moisture evaporation.

Material Enters The Outer Cylinder: The material in the inner cylinder gradually moves to the outlet. When the material reaches the outlet of the inner cylinder, due to the certain gap between the inner and outer cylinders, the material enters the outer cylinder through the gap.

Drying Of The Outer Cylinder:Hot air circulation: The heat source of the double-layer drum dryer is usually located at the bottom or side of the equipment, and the generated hot air flow enters the outer cylinder. Under the action of the fan, it forms countercurrent or downstream contact with the material.

Re-Drying: The material entering the outer cylinder continues to be dried by the hot air flow in the outer cylinder. The inner wall of the outer cylinder can also be equipped with a copying plate or other auxiliary devices to further turn and stir the material.

TONY Double-Layer Rotary Drum Dryer is mainly composed of heating device,feeding device, supporting device, cylinder, gears, discharging device and so on.TONY Double-Layer Rotary Drum Dryer main body is a rotary cylinder with a certain inclination, equipped with combustion chamber, exhaust device, dust collector, and feeding device. High-temperature flue gas is used as the drying medium, which enters the dryer under the suction of ventilation device. TONY Rotary Drum Dryer can be generally divided into four types, they are: Single-Layer Rotary Drum Dryer, Double-Layer Rotary Drum Dryer and Three-Layer Rotaty Drum Dryer. Different kind of dryer has its own characters and advantages, the specific choice of a special dryer depends on different elements.

1.Large Production Capacity

Low fuel consumption.Continuous operation.Low drying cost

2.Strong Overload Resistance Capability

Strong processing capacbility.The cylinder runs smoothly.Strong reliability

3.Has High Temperature

resistance characteristics.Capable of using.high-temperature hot air to quickly dry materials

4.Wide Applicability And Good Uniformity.

The operating parameters of the drum dryer have a wide range of adjustment and are easy to adjust, Can obtain uniform dried products.

The performance characteristics of the double-layer drum dryer mainly include the following aspects:

1. High Drying Efficiency:

Unique structural advantages: The double-layer structure increases the drying stroke of the material and the contact time with the hot air flow. After the material is initially dried in the inner drum, it enters the space between the inner and outer drums to continue drying, which extends the drying path, allows the moisture to evaporate fully, and greatly improves the drying efficiency.

2. Sufficient Heat Exchange:

The gap between the inner and outer drums is reasonably designed, and the hot air flow can fully circulate in the double-layer structure and conduct a comprehensive and uniform heat exchange with the material. At the same time, the drum wall is usually equipped with devices such as shovels to continuously turn and stir the material so that all parts of the material can fully contact the hot air flow, further improving the heat exchange efficiency.

3. High Energy Utilization:

Heat recovery and utilization: The double-layer structure has good thermal insulation performance and can reduce heat loss. The outer drum can play a certain role in heat preservation of the inner drum, so that the heat can be fully utilized inside the dryer, reducing energy consumption. Some double-layer drum dryers are also equipped with heat recovery devices to recycle the heat in the exhaust hot air flow, further improving the energy utilization rate.

4. Strong Operation Stability:

Sturdy structure:

The overall structure of the double-layer drum dryer is reasonably designed, usually made of high-quality steel or other solid materials, with strong load-bearing capacity and anti-deformation ability. Both the inner and outer drums can withstand the weight of the material and various stresses during the drying process, ensuring the long-term stable operation of the equipment.‌

1. High Efficiency: The double-layer drum dryer has high thermal efficiency, which is about 50% higher than that of traditional single-cylinder dryers, and can significantly save energy. Its design allows the material to exchange heat between the inner and outer cylinders, improving the heat exchange efficiency and achieving rapid drying.

‌2. Energy Saving And Environmental Protection‌: The double-layer drum dryer uses a variety of heat sources, such as burners, steam and electric heaters, to achieve diversified utilization of energy. In addition, the equipment design focuses on heat recycling, reducing energy waste. Some high-end equipment are also equipped with flue gas purifiers to meet environmental protection requirements and protect the ecological environment.

‌3. Wide Scope Of Application: Double-layer drum dryer is suitable for a variety of materials, including clay, coal, slag, iron powder and other bulk materials, and is widely used in metallurgy, chemical industry and other fields. It has a compact structure and easy operation, and is suitable for the drying needs of various materials.

‌Compact structure‌: The double-layer drum dryer has a compact structure. The whole machine is arranged horizontally and supported by supporting wheels. The large and small gear transmission is eliminated and replaced by supporting wheel transmission. It is easy to install, simple to operate and reliable in operation.

‌4. High Efficiency And Energy Saving‌: The double-layer drum dryer adopts a co-current drying process of materials and hot air, which reduces the factory building area and engineering investment. Its external surface area is more than 30% smaller than that of a single-cylinder rotary dryer, resulting in less heat loss and improved working environment and conditions.

5‌. Easy To Operate‌: The double-layer drum dryer is easy to operate. You only need to put the materials into the drum and set the drying time and temperature. Equipment usually adopts automated control systems, which reduces the skill requirements for operators, and has fault self-diagnosis functions for easy maintenance‌.

TONY Single-Layer Rotary Drum Dryer is suitable for chicken manure, cow dung, feces organic fertilizer, sludge, bean dregs, starch residue, sauce residue, sprayed corn kernels, cassava residue, beer distiller's grains, lees, straw, pasture and other 55% moisture content of material Drying.

At the same time, this dryer is also suitable for wood chips, biomass, sludge, river sand, aggregates, coal, silica sand, straw, asphalt, organic fertilizer, beer residue, distiller's grains, mineral powder, etc.

1.Wide Application: The rotary dryer is suitable for drying a variety of materials such as sawdust, organic substances, and chemical materials.

2.High Drying Capacity: This type of dryer has a high drying capacity that allows for quick and efficient drying of materials.

3.Stable Performance: The rotary dryer operates stably, providing a continuous and uniform drying process.

4.Energy Saving and Easy to Operate: The rotary dryer is low in consumption, easy to operate, and maintain.

5.Incorporates an Air-Inhale Device: The dryer uses an air-inhale device to draw hot air from the air-heating furnace into the dryer, completing the heat exchange with the wet material.

6.Lifting Plates: The use of a blade shaft increases the number of times the material is stirred, which enhances efficiency.

Main Double-Layer Rotary Drum Dryer： 1.Rotary Drum Dryer 2.Capacity:2-3T/hour (It depends on clients materials moisture) 3.To dry the wet raw materials Frequency dryer body. 4.Dryer thickness:10-20mm (It depends on clients materials moisture and capacity) 5.spiral plate weld, accord with welding rule, it won't easily crack and deformation.
	Hot Stove: Build with Refractory brick. It can use coal or any biomass raw material as fuel. Supply drawings,buyer build it.
Inlet Galvanized Belt Conveyor:To transport the raw material into drum dryer. 1. It is used to transport the wet sawdust to the rotary drum dryer, optional according to customer needs. 2. If customer digs a pit, you will need belt conveyor with 50cm width and 10 meters length. If customer does not dig a pit, you will need belt conveyor with 50cm width and 8 meters length. 3. The belt conveyor needs to be equipped with a frequency converter to achieve one-button simultaneous operation with the rotary drum dryer, and control the conveying speed of the belt conveyor by sensing the current of the rotary drum dryer.
	Frequency： Frequency to control speed of belts.
Blower: The blower can be used as a conveying equipment, achieving the purpose of material transportation through the rotation of the blower, saving labor and improving production efficiency.
	Cyclone： To collection Dust and discharge
Electrical Cabinets： 1.We use well-known Chinese brand electrical components, and we can also choose Schneider and Siemens electrical appliances according to customer requirements. Please consult Tony for the price difference. 2.If the customer chooses a variable frequency motor, all components in the electric control cabinet need to adopt variable frequency control. Please contact Tony to obtain the price difference of the variable frequency control cabinet.
	Motors： 1.TONY Motors uses Qingdao SHUOBO Brand. 2.The motors can also be changed into a variable frequency motor according to customer needs. Please consult TONY for the price difference of variable frequency motor

Bag Dust Collector

Galvanized Pulsed Dust Collector

Water Spray Dust Removal

Wet Electrostatic Precipitator

1.Suitable for dealing with moderate air volume, low dust concentration occasions.

2.Simple structure,Physical filtration.

3.The maintenance is complicated, and the bag needs to be cleaned regularly.

4.High dust removal resistance.

1.It is more suitable for dealing with large air volume, high dust concentration and complex dust properties.

2.Automatic clearance mechanism.

3.Galvanized material, not easy to corrosion damage.

4.Limited by the temperature of the gas.

1.Water Spray Dust Removal is suitable for high pressure and cooling process

2. Small resistance, easy to operate

3. Slightly larger volume

4. Large water consumption, power consumption

1. Wet Electrostatic Precipitatoris the use of ionization effect

2. Steel structure is not easy to damage

3. Suitable for large-scale projects, the larger the amount of gas treated, the more obvious its economic role

4.High installation accuracy is required

The working process of the double-layer drum dryer is generally as follows:

1. Material Preparation:

Material conveying: The wet material to be dried is sent to the feeding hopper of the double-layer drum dryer through a belt conveyor, bucket elevator or other conveying equipment.

Material distribution: After entering the dryer, the material will be reasonably distributed to the inner and outer drums according to the structural characteristics of the double-layer drum.

2. Heating And Drying:

Heat source supply: The heat source of the double-layer drum dryer can be hot air, flue gas, steam, etc. The heat source is generated by a combustion device, a heat exchanger or other heating equipment and is transported to the inside of the dryer.

3. Material Turning:

The function of the lifting plate: A lifting plate is usually installed on the inner wall of the double-layer drum. As the drum rotates, the lifting plate will continuously lift and scatter the material, so that the material forms a uniform curtain in the drum, increasing the contact area between the material and the hot air and increasing the drying rate.

4. Moisture Discharge:

Moisture discharge: The moisture in the material will turn into water vapor after being heated. The water vapor will be discharged from the air outlet of the double-layer drum with the flow of hot air. In order to ensure that moisture can be discharged smoothly, the dryer is usually equipped with a ventilation system, including fans, air ducts and other equipment to provide sufficient ventilation and exhaust pressure.

5.Discharging:

Drying is completed: When the moisture content in the material reaches the set drying requirements, the drying process ends.

1.Inverter control of input and output speed, ensure uniform and stable moisture in the dried sawdust.

2.Explosion-proof function to prevent fire and explosion.

3.Large processing capacity and high heat efficiency. Heat efficiency can reach 60%.

4.The drum with thermal insulation board, the heat efficiency of thermal insulation is over 70%, and the heat efficiency is increased more than 50%.

5.Special board design can increase the touching area between the board and wet sawdust, so can shorten the drying time.

6.After the main drum drying, the end airflow will dry again, on the one hand, the drying efficiency can be improved, and on the other hand, the hot exhaust gas emission can be reduced.

7.With dust collecting system, it can collect dust, and more environmental protection.

8.In the hot stove, will set firewall, so can prevent fire into the drum dryer.

9.There are input and output temperature meter in the electric control cabinet, so can according to the temperature to control the drying time, then control the final dried sawdust's moisture.

1.Crushing: Raw biomass materials, like wood or straw, are chipped into smaller pieces.

2.Further Crushing: These pieces go through another round of crushing for size uniformity, aiding in blending.

3.Drying: The crushed material is dried to reduce its moisture content to roughly 10-15%.

4.Pelleting: The dry material is pressed at high temperatures to create dense pellets.

5.Cooling: Freshly-made pellets are cooled down to harden.

6.Packaging: Finally, pellets are packed for transport and storage, in either small or bulk quantities.

To choose the right drying equipment for you, you need to know the following points:

1. Types of drying materials. Different materials require different structural designs.

2. The output per hour that needs to be dried. Determine the processing capacity of the required dryer according to the production scale. If the output is large, choose a large-scale, high-processing capacity single-layer drum dryer; if the output is small, choose a small device to avoid excessive investment in equipment and energy waste.

3. The initial moisture content of the material and the final required moisture content: Knowing these two indicators can determine the drying time and thermal power requirements of the dryer. The higher the initial moisture content, the longer the required drying time and the correspondingly larger thermal power. At the same time, different materials may have different physical property changes at different moisture contents, such as fragility, fluidity, etc. These factors must be considered when choosing a dryer.

The selection of dryers is relatively complicated. Please contact TONY for specific selection methods. We will help you choose the most suitable machine model.

24 Hours Online Service.

-Inquiry will be replied within 2 hours.

-All-the-way tracking service offered from placing order to delivery.

-Free training for operation, debugging and daily maintenance.

-We can provide professional guide installation.

-One year warranty and all-round after-sales service.

-Customized design and flow chart are available for our clients.

-Independent R&D team and strict & scientific management system

TONY is a professional manufacturer and exporter engaged in the research, production, sale and service of Biomass wood pellet line, wood pellet mill, grinding equipment, crushing equipment, drying equipment, cooler and other screening, conveying equipment.Having developed the pellet machines with reliable functions, reasonable design, energy saving and high efficiency low consumption, our vertical ring die pellet mill which use special gear transmission has sold very well during home and aboard.

We always supply the most suitable machines for customers with excellent quality and competitive price.