Slag Dryer

Introduction of Slag Dryer

Zoneding Machine has developed a new advanced dryer specifically designed for recycling slag generated in the ore dressing or smelting industry. Our ZDM slag dryer machine is widely used in various industries such as building materials, chemical, and cement. It consists of a rotary cylinder, lifting blades, self-cleaning device, and other equipped devices. The slag dryer operates stably and utilizes mature technology, offering high production capacity and efficiency.

For the slag dryer, there are several combustion furnace options available:

High temperature fluidized furnace: This type of furnace utilizes a high-temperature fluidized bed to generate heat for the slag drying process. It offers efficient heat transfer and is commonly used for industrial applications.

Pulverized coal duster furnace: This furnace burns pulverized coal to generate heat. It is known for its high combustion efficiency and can provide a stable heat source for the slag dryer.

Artificial coal furnace: An artificial coal furnace is capable of burning artificial coal, which is a type of solid fuel. It can provide heat for the slag dryer and is often used in areas where other types of fuels are not readily available.

These various combustion furnace options can be chosen based on factors such as fuel availability, cost, and local environmental regulations.

The slag dryer machine has a wide range of applications in various industries:

1. Iron industry: It is commonly used to dry the tailings of blast furnace slag generated in the iron smelting process.
2. Cement industry: The slag dried by the slag dryer can be milled into a fine powder and used as raw materials in cement and concrete production. This helps to improve the strength and durability of the final product.
3. Building materials production: The slag dryer can be used to dry different types of materials used in the production of building materials. This includes drying materials such as limestone, clay, and metal powders.
4. Chemical industry: Slag dryer machines are often utilized to dry materials that serve as raw materials in the chemical industry. It helps in maintaining the quality and efficiency of the chemical production process.
5. Other materials: Apart from the industries mentioned above, the slag dryer can also be used to dry various other materials such as carbide slag, granulating slag, river sand, coal slime, sludge, and more.

Overall, the slag dryer machine is versatile and can effectively dry different types of wet materials with high specific gravity, making it suitable for a wide range of applications.

Applied Fields of Slag Dryer

The slag drying equipment works through a co-current heating process. Here is a step-by-step explanation of how it operates:

1. Feeding: Wet slag is introduced into the cylinder of the dryer through a feeding box and conveyor system.
2. Spiral blades: Inside the cylinder, there are spiral blades that push the wet slag towards the other end of the drum.
3. Gravity flow: Due to the set angle of the dryer, the wet slag flows downward towards the exit under the combined effects of gravity and rolling.
4. Hot air contact: At the same time, the wet slag is lifted to the top end of the cylinder by the spiral blades. It then falls onto a screen, where it comes into full contact with hot air.
5. Repeated process: This process of lifting, falling, and hot air contact is repeated multiple times. Each repetition allows the wet slag to come in contact with the hot air, resulting in gradual drying.
6. Drying: As the wet slag goes through this repeated process, it gradually loses moisture and is dried to the desired moisture content.

By utilizing this co-current heating mechanism and repeated contact with hot air, the slag drying equipment effectively dries the wet slag, making it suitable for further processing or utilization in various industries.

Working Principle of Slag Dryer

The Zoneding slag dryer machine has the following structural advantages:

1. Rotating cylinder: The core component of the slag dryer is the rotating cylinder, which provides a large drying space for the wet slag. The cylinder is designed to ensure efficient heat transfer and uniform drying of the material.
2. Induced draft fan: The induced draft fan is responsible for creating a negative pressure environment inside the dryer. This helps to enhance the drying efficiency by facilitating the airflow and removing the evaporated moisture from the system.
3. High-speed scattering equipment: The high-speed scattering equipment is used to disperse the wet slag as it enters the dryer. This ensures that the material is evenly distributed in the drying chamber, maximizing the contact with the hot air and promoting efficient drying.
4. Lifting plates: The lifting plates inside the cylinder help to lift the wet slag and create a shower-like effect. This enables the material to be exposed to the hot air and facilitates the drying process.
5. Self-cleaning device: To prevent the wet slag from sticking or clogging the dryer, a self-cleaning device is incorporated. It helps to remove any accumulated material on the inner surface of the cylinder, ensuring smooth operation and continuous drying.
6. Transmission and conveyor: The transmission device and conveyor system facilitate the movement of the wet slag through the dryer, allowing for efficient and continuous drying.
7. Hot air equipment: The hot air equipment supplies the necessary heat for the drying process. It ensures that the hot air is evenly distributed throughout the dryer, optimizing the drying efficiency.
8. Reducer and supporting device: The reducer and supporting device provide stable and reliable operation of the dryer. They help to maintain the proper balance and alignment of the rotating cylinder.
9. Sealing device: The sealing device ensures that there are no leaks or losses of hot air during the drying process. It helps to maintain the desired temperature and prevents unnecessary energy waste.

These structural advantages of the Zoneding slag dryer contribute to its efficient and effective performance in drying wet slag, making it a reliable choice for various industrial applications.

Structure of Slag Dryer

To prolong the service life of a slag drying machine, the following maintenance and check steps should be followed:

1. Lubrication: Proper lubrication is crucial for the bearings of the machine. Ensure that the lubricant oil is clean and regularly check and replace it as needed. The containers holding the lubricant should be sealed well to prevent contamination.
2. Tyre inspection: Regularly check the condition of the tyre, especially after installation or maintenance. The tyre may become loose over time, so ensure it is properly secured to prevent any issues during operation.
3. Wear parts replacement: Identify the parts that are prone to wear and monitor their condition regularly. Replace these parts promptly to prevent further damage or failure. Common wear parts may include lifting plates, seals, and bearings.
4. Bearing temperature: Pay close attention to the oil temperature of the bearing parts during operation. If the temperature rises significantly, stop the machine immediately to investigate the cause. Address any issues promptly to prevent further damage.
5. Unusual sounds: If there is an unusual impacting sound coming from the rotating wheels, it is important to stop the drying machine and investigate the cause. Identifying and resolving the issue promptly can prevent potential damage to the equipment.

By following these maintenance steps and conducting regular checks, you can extend the service life of your slag drying machine and ensure its efficient and reliable performance.

Our Indian Customer with Engineer

Slag Dryer Manufacturer

Zoneding Machine is a professional slag drying equipment manufacturer located in Zhengzhou, China. They offer a wide range of slag dryers for sale, including steel slag dryers and granulating slag dryers. With advanced international technology and a team of skilled engineers, Zoneding Machine is capable of designing and producing slag dryers to meet specific customer needs. Customers are encouraged to chat online with the engineers to discuss pricing and the production flow of the slag dryers. Zoneding Machine provides reliable and efficient solutions for slag drying requirements.

General Specification

Spec./m (Dia.×Length)	Shell Cubage (m³)	Capacity (t/h)	Installation Obliquity (%)	Highest Inlet Air Temperature (℃)	Main Motor (kw)	Weight (t)
Φ1.2×8.0	9.0	1.9～2.4	3～5	700～800	7.5	9
Φ1.2×10	11.3	2.4～3.0	3～5	700～800	7.5	11
Φ1.5×12	21.2	4.5～5.7	3～5	700～800	15	18.5
Φ1.5×14	24.7	5.3～6.6	3～5	700～800	15	19.7
Φ1.5×15	26.5	5.7～7.1	3～5	700～800	15	20.5
Φ1.8×12	30.5	6.5～8.1	3～5	700～800	18.5	21.5
Φ1.8×14	35.6	7.6～9.5	3～5	700～800	18.5	23
Φ2.2×12	45.6	9.7～12.2	3～5	700～800	22	33.5
Φ2.2×14	53.2	11.4～14.2	3～5	700～800	22	36
Φ2.2×16	60.8	13.0～16.2	3～5	700～800	22	38
Φ2.4×14	63.3	13.5～16.9	3～5	700～800	37	45
Φ2.4×18	81.4	17.4～21.7	3～5	700～800	37	49
Φ2.4×20	90.4	19.3～24.1	3～5	700～800	45	54
Φ2.4×22	99.5	21.2～26.5	3～5	700～800	45	58
Φ2.6×24	127.4	27.2～34.0	3～5	700～800	55	73
Φ3.0×20	141.3	30.1～37.7	3～5	700～800	75	85
Φ3.0×25	176.6	37.7～47.1	3～5	700～800	75	95
Φ3.2×25	201	42.9～53.6	3～5	700～800	90	110
Φ3.6×28	285	60.8～76.0	3～5	700～800	160	135

Technical parameters of indirect heat dryer:

Shell  diameter ×shell  Length   Items	Inside  diameter  of outer  shell (mm)	Inside  diameter  of inner  shell (mm)	Shell  Length (m)	Shell  cubage (m³)	Shell  obliquity	Lifting  blade  form	Highest  inlet air  temperature (℃)	Dimensions (m)
Φ1.5×15m	1500	500	15	20.27	3-5%	Lifting form	850	16.2×2.7×2.7
Φ1.5×17m			17	22.97				18.2×2.7×2.7
Φ1.5×19m			19	25.68				20.0×2.9×2.9
Φ1.8×21m	1800	650	21	35.91	3-5%	Lifting form	850	22.5×2.7×2.7
Φ1.8×23m			23	39.33				24.5×2.9×2.9
Φ1.8×25m			25	42.75				26.5×2.9×2.9
Φ2.2×21m	2200	800	21	58.10	3-5%	Lifting form	850	—-
Φ2.2×23m			23	63.61
Φ2.2×25m			25	69.15

Please note that the information provided about Zoneding Machine being a professional slag drying equipment manufacturer is subject to change due to the improving technology. Zoneding Machine reserves the right to make changes without prior notice. Additionally, the performance of the machines may vary depending on the specific application. For the most accurate and up-to-date details, it is recommended to chat online with Zoneding engineers who can provide more detailed information about the slag dryers and address any specific concerns or requirements.