Application Field: Briquette Dryer, Clean Coal Drying

Coal Briquette Dryer Application for Clean Coal Briquette Drying

As oil depletes and technology advances, coal, as China's primary energy source and an important industrial raw material, is bound to become one of the irreplaceable energy sources in human production and daily life.

The high moisture content of coal slime makes it extremely difficult to reuse. Traditional methods such as air drying and vertical dryers can no longer meet the production demands of briquettes. With the increasing demand for energy-saving and environmentally friendly briquettes, Changzhou Haomai Drying Engineering Co., Ltd., in line with China's national policies on energy conservation, environmental protection, and sustainable development, has continuously innovated and developed a new specialized belt dryer for clean briquettes, paving the way for efficient utilization of coal slime. The clean briquette dryer can effectively recover moisture-laden coal slime and conduct comprehensive drying treatment. After drying, the quality of the coal slime is improved, allowing it to be used as an additive in brick factories or as a raw material for cement, thereby being applied in corresponding fields. This not only alleviates China's dwindling coal resources to some extent but also reduces environmental pollution in mining areas, while bringing significant economic benefits and positive social impacts.

Briquette Dryer: A type of mesh belt drying equipment used for drying briquettes. It utilizes hot air to dry briquettes and is a continuous, batch-type belt dryer. The temperature of the briquette dryer ranges from 130 to 250 degrees Celsius, and its production capacity can reach 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, or 20 tons per hour. The length of the briquette dryer's chamber is composed of standard sections. To save space, three or five layers of conveyor belts can be used to transport briquettes, simultaneously drying and dehumidifying them during the process. Common configurations include 3 layers of 20 meters, 3 layers of 30 meters, 5 layers of 20 meters, and 5 layers of 30 meters.
The high-efficiency and energy-saving coal slurry dryer is a new type of drying equipment developed based on the belt dryer. The DW multi-layer belt dryer, researched and developed by Changzhou Haomai Drying Engineering Co., Ltd., is a dedicated drying device for coal briquettes, offering high efficiency, economy, and reliable quality. This series of dryers features fast drying speed, high evaporation intensity, and excellent product quality. It can also dry dewatered filter cake-like paste materials after granulation or forming into rods. Through continuous research and development, industrial experiments, and production practices with multiple cooperative units, the technology of the high-efficiency and energy-saving coal briquette dryer has become highly mature.

Working Principle of Coal Briquette Dryer:

The briquettes, containing a high amount of moisture, are uniformly spread onto a mesh belt after being pressed by a forming machine. The mesh belt, typically made of 12-60 mesh stainless steel wire mesh, is driven by a transmission device to move within the dryer. The dryer consists of several units, each with an independent hot air circulation system. A portion of the exhaust gas is discharged by a dedicated moisture removal fan, while the waste gas is controlled by a regulating valve. Hot air passes through the mesh belt, which is covered with the material, either from bottom to top or top to bottom, completing the process of heat and mass transfer and removing moisture from the material. The mesh belt moves slowly, and its speed can be freely adjusted based on the temperature requirements of the briquettes. The dried briquettes are continuously fed into a collector. The upper and lower circulation units can be flexibly configured according to user needs, and the number of units can also be selected as required.

Performance Characteristics of Coal Briquette Dryer:

1. The air volume, heating temperature, material residence time, and feeding speed can be adjusted to achieve excellent drying results.

2. The equipment configuration is flexible, allowing the use of a mesh belt washing system and a material cooling system. Most of the air is recycled, resulting in significant energy savings.

3. The unique air distribution device ensures a more even distribution of hot air, guaranteeing consistent product quality.

4. The heat source can be steam, thermal oil, electricity, or a coal (oil)-fired hot air stove, among others. Choosing a reasonable heat source also significantly reduces the material cost of the dryer equipment, saves resources, ensures production profitability, and extends the service life of the machinery.

5. Suitable supporting materials include dehydrated vegetables, granular feed, monosodium glutamate, coconut shreds, organic pigments, synthetic rubber, acrylic fiber, pharmaceuticals, medicinal herbs, small wooden products, plastic products, and aging and curing of electronic components, among others.

6. Designed for coal balls to enter from the upper low-temperature zone and exit from the tail low-temperature zone, with gradual heating in both the low-temperature and high-temperature zones. This prevents the coal balls, which contain 8-10% moisture after forming, from cracking or bursting due to rapid heating, resulting in a low breakage rate.

Purchase high-efficiency, low-energy consumption equipment: briquette dryer, clean briquette drying, specialized briquette dryer, briquette belt dryer, multi-layer belt dryer. Of course, choose a manufacturer with high equipment quality and strong corporate reputation — Changzhou Haomai Drying Engineering Co., Ltd. Technical consultation hotline.13706****** Manager Zhang