Slag Dryer Machine

Application of slag dryer

Slag is a byproduct formed during metal smelting, ore extraction, or other metallurgical processes. It consists of impurities, non-metallic components, and other materials melted at high temperatures from metal ores. Slag holds promising commercial prospects to some extent. With increasing demand for sustainable development and resource recovery, research into the reuse and recycling of slag is also growing. The moisture content of slag is indeed a significant consideration, especially for certain types of slag that require drying before application. This calls for the use of slag dryers(slag rotary drying machines).

The Working Process of Slag Rotary Drying System

Co-current heating mainly works in slag drying process. Wet slag is transmitted into the cylinder by the feeding box and feeding conveyor. Then it is pushed back to the other end of the cylinder of the drum by spiral blades inside. The dryer is set at a certain angle. On one side, the wet slag flows down to the exit under the effect of gravity and rolling. On the other, it is brought up to the top end of the cylinder by the blades and falls into a screen to get in full touch with the scorching wind. Thanks to this repeated proceeding, wet slag is dried step by step.

Material loading zone:

Upon entering the drying drum, wet slag first enters the material loading zone. In this area, the wet slag rapidly comes into contact with high-temperature hot air, initiating the evaporation of moisture. Simultaneously, propelled by the large inclination of the loading plate, the slag does not easily adhere and smoothly transitions into the next working zone.

Lifting and cleaning zone:

Subsequently, the wet material enters the lifting and cleaning zone. Here, the wet material is lifted by the lifting plates, forming a curtain-like state. Due to the tendency of wet slag to adhere to the inner wall of the drum upon falling, the equipment is designed with a cleaning device to effectively remove the adhered slag. Additionally, the cleaning device also breaks up slag clumps, increasing the heat exchange area and enhancing the drying rate.

Inclined material lifting zone:

Following is the inclined material lifting zone. In this area, the wet slag has reached a low moisture loose state and no longer exhibits adhesion. After sufficient heat exchange, the slag achieves the required moisture content, preparing to enter the discharge area.

Discharging zone:

Lastly, we have the discharging zone. Here, the drum no longer has lifting plates. Wet slag rolls and glides to the discharge outlet in this area, completing the entire slag drying process.

Structural Advantages of Zoneding Slag Dryer

Slag dryer is also a kind of rotary dryer, which is mainly composed of a rotating cylinder, induced draft fan, high-speed scattering equipment, lifting plates, self-cleaning device, transmission device, conveyor, hot air equipment, reducer, supporting device, sealing device and other components.

• Slag dryer can meet different particle size and moisture need of slag, fly ash and other materials.
• Large processing capacity, strong anti-overload capacity, low fuel consumption, which can reduce the drying cost.
• Concurrent flow drying design is adopted  to achieve the best drying effect. Material and heat flow enter into the drying equipment from the same side. The dryer outlet temperature is low with high thermal efficiency.
• New kind of feeding and discharging device to prevent the feeding jam, discontinuous, inhomogeneous and feeding returning phenomena, which reduces the load of the dust collecting system.
• The innovation of inner structure strengthens the cleaning and heat transfer effect of dispersed materials and eliminates the sticking phenomenon of the inner cylinder wall.

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

Customer Site

Trusted Sand Dryer Manufacturer——Zoneding

Zoneding is your trusted manufacturer and designer of sand dryers. Over the years, we have accumulated rich experience in the industry, always committed to providing excellent product quality and premium customer service. At Zoneding, we understand the importance of product quality, so we rigorously control every production process to ensure that each piece of equipment meets the highest standards. Furthermore, we prioritize user experience. From manufacturing to delivery, and from installation to commissioning and after-sales service, we have a professional team to follow up on every step, ensuring your user experience is worry-free.

Our product range also includes grinding mills, crushers, conveyors, feeding machine as well as beneficiation equipment, fine sand recycling equipment etc,which are widely applied in electricity, metallurgy, mine and quarry ,wharf, granary, chemical industry. Zoneding can provide you with safe and reliable solutions. Choosing Zoneding means not only getting high-quality products but also experiencing our professional, meticulous, and attentive service. Let’s work together to create a better future!