English
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YJG
Jiangsu Jinling Dryer
841939990
SUS304/SUS316L/2205 ETC
Changzhou,Jiangsu,China
CE,ISO 9001: 2008,ISO 10004
Customized
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Product Description
The sludge paddle dryer operates on the principle of indirect heat transfer combined with gentle mechanical agitation. It is specially designed to dry high-moisture, sticky, or paste-like sludge materials using hollow paddles and a jacketed trough as the heat exchange surfaces.
Heating medium (such as steam, hot water, or thermal oil) flows through the hollow paddles and dryer jacket.
Heat is indirectly transferred to the sludge through the metal surfaces, avoiding direct contact with hot air, which reduces dust and emissions.
The rotating hollow shafts with paddles continuously mix and agitate the sludge.
This ensures even exposure to heat and prevents caking or sticking to the inner surfaces.
The applied heat causes the moisture in the sludge to evaporate gradually.
In vacuum systems, the boiling point of water is reduced, speeding up evaporation and improving energy efficiency.
The evaporated water (as vapor) is removed through a vapor outlet and sent to a condenser or scrubber system, depending on the setup.
This maintains low humidity inside the dryer, supporting continuous drying.
The dried sludge is discharged from the bottom outlet, often as a semi-dry or dry powder/cake.
Indirect heat + mechanical mixing → uniform drying with low energy loss and controlled emissions
200 square meter sludge paddle dryer
100 square meter sludge paddle dryer
Lab test using sludge paddle dryer
Paddle Dryer Inner shaft
Round plate to install on the shaft
Hollow Sludge Paddle Dryer Design and Structure
The sludge paddle dryer consists of several key components, all designed to ensure efficient, uniform, and safe drying of sludge materials. Its structure supports indirect heat transfer, continuous mixing, and effective moisture removal.
A horizontal, jacketed trough made of carbon steel or stainless steel.
The outer jacket circulates the heating medium (steam, thermal oil, or hot water) to provide indirect heat.
One or two hollow shafts run through the dryer and are fitted with numerous wedge-shaped or semi-circular hollow paddles.
These paddles are also filled with the heating medium to maximize heat exchange surface area.
They rotate slowly to mix, agitate, and convey the sludge forward.
Includes a motor, reducer, and gear system that drives the rotation of the paddle shafts.
Ensures low-speed, high-torque operation for handling heavy and sticky sludge.
A screw feeder, pump, or gravity chute introduces sludge into the drying chamber.
Designed to avoid material blockage and maintain a continuous flow.
Dried sludge exits through a discharge port at the opposite end.
May include a screw conveyor or rotary valve to control output.
Moisture evaporated during drying exits through a vapor outlet.
The vapor can be sent to a condenser, scrubber, or dust collector, depending on environmental requirements.
The outer surface of the shell is often insulated and clad to minimize heat loss and improve energy efficiency.
A centralized PLC or HMI control system monitors temperature, shaft speed, feed rate, and pressure for safe and automated operation.
5.Optional Components:
6.Vacuum system(for low-temp drying)
Gas-tight seals(for hazardous materials)
Explosion-proof design (for flammable content)
This structure allows the sludge paddle dryer to handle sticky, high-moisture content materials efficiently, with minimal odor and dust emissions.
Let me know if you need a labeled diagram or technical specs for each component.
| Configuration | Double Shaft | Four Shaft | |||||||||||
| Model(YJG) | 5 | 15 | 20 | 40 | 60 | 80 | 100 | 120 | 150 | 200 | 300 | 400 | 500 |
| Heating area(m²） | 5 | 15 | 20 | 40 | 60 | 80 | 100 | 120 | 150 | 200 | 300 | 400 | 500 |
| Power(kw) | 4 | 15 | 18.5 | 30 | 37 | 45 | 55 | 75 | 90 | 110 | 180 | 220 | 264 |
| Note | Adopt different construction material and configure based on different feature of Sludge | ||||||||||||
The features of a sludge paddle dryer make it a highly efficient and versatile piece of equipment for drying sludge. Some key features include:
Utilizes steam, hot oil, or other heat sources to heat the sludge indirectly, preventing direct contact with the heating medium and minimizing the risk of thermal degradation.
The rotating paddles or blades continuously agitate the sludge, ensuring uniform heat distribution and preventing material buildup or clumping.
The combination of mechanical agitation and heat transfer ensures high drying rates, making the process faster compared to other drying methods.
The use of steam or hot oil for indirect heating, along with vacuum assistance, reduces the amount of energy required for drying, lowering operational costs.
Despite its high efficiency, the sludge paddle dryer typically has a relatively compact design, making it suitable for a range of installations, including those with limited space.
It can handle a wide variety of sludges, including those with high moisture content, making it suitable for municipal, industrial, and wastewater treatment applications.
The ability to regulate the temperature and pressure conditions ensures that the sludge is dried consistently without risk of overheating or burning.
The sealed design and vacuum operation reduce the release of unpleasant odors often associated with drying sludge.
With fewer moving parts and a durable design, sludge paddle dryers tend to require relatively low maintenance.
These features contribute to the sludge paddle dryer's popularity in applications where efficient, cost-effective, and safe drying of sludge is essential.
Ideal for heat-sensitive materials as the vacuum reduces the boiling point of water or solvents.
Rapid drying of materials with high moisture or solvent content, even when drying viscous or sticky materials.
The agitation and heating mechanism ensure consistent drying throughout the batch.
Reduces the risk of contamination, making it suitable for sensitive or hazardous materials.
Lower temperatures mean reduced energy consumption and minimized product degradation.
The sludge paddle dryer is widely used in various industries for drying sludge, waste, and other materials. Its applications include:
Municipal Sludge Treatment: Sludge paddle dryers are commonly used in wastewater treatment facilities to reduce the volume of sewage sludge. The dried sludge is easier to handle, store, or dispose of, reducing disposal costs and environmental impact.
Chemical & Pharmaceutical Industries: Industrial sludge, which often contains hazardous chemicals or high moisture content, can be dried efficiently using a sludge paddle dryer, reducing waste volume and preparing it for safe disposal or further treatment.
Food Processing: The drying of organic waste, including fruit or vegetable sludge, can be efficiently handled by these dryers. The dried product can then be used for composting or further processing.
In the oil and gas industry, sludge containing oil, water, and solids is produced during drilling and refining operations. Sludge paddle dryers help reduce the moisture content of this sludge, facilitating easier disposal and reuse of by-products.
Tailings Disposal: Mining operations generate large amounts of slurry waste or tailings, which can be dried using sludge paddle dryers to reduce storage space and environmental contamination. The dried tailings can often be reused in construction or rehabilitation projects.
Sludge from Paper Mills: The sludge generated in paper mills, often made up of cellulose fibers and chemicals, can be dried using sludge paddle dryers. This reduces the amount of waste sent to landfills and can produce a dried by-product suitable for recycling.
Textile Waste Sludge: The textile industry produces sludge as a by-product of dyeing and finishing processes. A sludge paddle dryer can dry this sludge, reducing its volume and enabling safe disposal or reuse in other applications.
Organic Sludge: Biomass waste, such as sewage sludge or food waste, can be processed in a sludge paddle dryer to reduce its moisture content, making it easier to convert into biogas, compost, or other forms of renewable energy.
Agricultural Sludge: Sludge from agricultural runoff or waste processing can be dried using these dryers to create a more stable and manageable product. The dried sludge can be composted or processed into fertilizers for agricultural use.
Hazardous Waste Sludge: In cases where sludge is contaminated with hazardous substances, a sludge paddle dryer can reduce the moisture content of these materials, helping with safe disposal or further detoxification.
Drying for Incineration: Some facilities use the dried sludge for incineration or combustion in waste-to-energy plants, where the dried sludge serves as a fuel source for generating electricity or heat.
The sludge paddle dryer is essential for improving the handling, disposal, or transformation of waste materials in various industries, helping to meet environmental regulations and reduce operational costs.
When using a sludge paddle dryer machine, several key considerations need to be taken into account to ensure optimal performance, efficiency, and safety. Here are the main factors to consider:
The moisture level of the sludge plays a crucial role in the drying process. High moisture content requires more energy and time for drying, so it's important to understand the sludge's characteristics beforehand.
The presence of chemicals, oils, or hazardous substances in the sludge can affect the drying process and the design of the machine. Ensure the machine is compatible with the type of sludge you're processing.
The choice of heat source (steam, hot oil, or electric heating) should align with the energy availability and cost-effectiveness in your facility. Steam and hot oil systems are more common due to their efficiency in indirect heating.
Proper control over temperature is essential to prevent over-heating or degradation of sensitive sludge material. Some sludge may require lower drying temperatures to preserve its quality.
Sludge drying is energy-intensive. Selecting a dryer with low energy consumption or incorporating heat recovery systems can help reduce operational costs.
Using a vacuum system can lower the boiling point of moisture, making the drying process more energy-efficient at lower temperatures.
Ensure the dryer has the appropriate capacity to handle the volume of sludge generated at your facility. The drying capacity must match your operational needs to prevent bottlenecks or inefficiencies.
Depending on your sludge generation rate, you may choose between batch-type or continuous drying systems. Continuous systems are ideal for larger operations, while batch systems might be better for smaller volumes.
The paddle dryer should be made from corrosion-resistant materials, especially if dealing with sludge containing chemicals or oils. Regular maintenance, such as checking for wear and tear on paddles, seals, and heat exchangers, is essential to ensure long-term performance.
The dryer should be easy to clean and maintain, particularly when dealing with materials that may cause clogging or buildup in the system.
Drying sludge often produces unpleasant odors. Ensure the system includes odor control measures, such as sealed chambers or proper ventilation.
For environmental safety, make sure the system complies with local regulations regarding emissions, especially if dealing with hazardous or volatile materials.
Depending on your available space, you may need to choose a compact or larger system. The machine’s footprint should fit within the physical constraints of your facility.
Consider how well the sludge paddle dryer can be integrated with existing wastewater treatment, sludge dewatering, or waste handling systems at your plant.
Modern systems often come with automated controls that allow for precise regulation of temperature, humidity, and drying time. Automated monitoring can help improve efficiency and prevent errors.
Many systems now offer remote monitoring capabilities, allowing operators to track performance, make adjustments, and ensure smooth operation without being physically present.
Once the sludge is dried, consider how it will be discharged from the machine (e.g., conveyor belts, containers, or automatic dischargers). The handling system must be efficient to prevent blockages or delays.
Consider the final disposal or utilization of the dried sludge, whether it's for land application, incineration, or as a raw material for other processes.
Ensure the system complies with environmental laws and regulations for sludge disposal, emissions, and waste treatment. This is especially important if you are handling industrial or hazardous waste.
The sludge paddle dryer should meet relevant safety standards to protect workers from heat, noise, and potential hazards related to the sludge material.
The upfront cost of the dryer machine should align with your budget and the expected scale of operations.
Factor in energy, maintenance, and operational costs to determine the total cost of ownership. A more efficient machine with lower operating costs can offer a higher return on investment in the long run.
Consider the machine’s expected lifespan and potential for upgrades or parts replacement to ensure long-term value.
The primary benefit of using a sludge paddle dryer is reducing the volume of waste for disposal, which can help minimize environmental impact.
Consider how the dried sludge can be repurposed for use in energy generation, composting, or land application to reduce environmental footprint further.
By carefully considering these factors, you can choose and operate a sludge paddle dryer machine that meets your specific needs, maximizes efficiency, and minimizes environmental impact.
ISO9001
ISO14001:2015
ISO45001:2018
Patent certificate
Act as a good adviser and assistant of clients to enable them get rich and generous returns on their investments.
1. Introduce the product to the customer in detail, answer the question raised by customer carefully;
2.Make plans for choice according to the needs and special requirements of users in different sectors;
1. Ensure product with high quality and pre-commissioning before delivery;
2. Delivery on time;
3.Provide full set of documents meet customer’s requirements.
Provide considerate services to minimize clients’ worries.
1.Assist clients to prepare for the first construction scheme;
2.Install and debug the equipment;
3.Train the first-line operators;
4. Examine the equipment;
5.Take initiative to eliminate the troubles rapidly;
6.Provide technical support;
7.Establish long-term and friendly relationship.
Service commitment
1. Provide clients one-year warranty to make sure the machine work well;
2.We always keep certain inventory level of spare parts, which means the replacements can be sent to you timely
1. Q: Jiangsu Jinling Drying Technology Co., Ltd is a manufacturer, trading company or a third party?
A: We are a manufacturer, Our company established in 2000.
2. Q: Where is your factory located?
A: Jinling is located in Changzhou city, Jiansu province, China. it is In the middle of Shanghai and Nanjing.
3. Q: How can I go to your factory?
A: You can fly to shanghai Pudong or Hongqiao international airport directly, then take the high speed train to Changzhou station (just 1 hour from Shanghai to Changzhou by High Speed Train) and we arrange to pick you up at Changzhou station/Changzhou Bei Station to go to our company. Jinling company is around 30km away from Changzhou station.
If you are in China now, you can fly to Changzhou Benniu airport, or take train or bus to Changzhou city directly .
We sincerely welcome to visit our company at any time.
Lydia Shen
Email:lydia.shen@jinlingdry.com/lydia@jinlingdry.com
Whatapp:+8613776858224
Wechat:1024628175
