Belt dryers are industrial machines used to remove moisture from various materials, such as food, grains, and chemicals. They work by passing the material over a moving belt while hot air circulates around it, effectively drying the product as it travels through the system. This method is efficient and helps maintain the quality of the material being dried. These dryers are commonly used in industries like agriculture and food processing, where moisture control is crucial for product preservation. By using belt dryers, companies can enhance shelf life and reduce spoilage, ultimately improving their operational efficiency and profitability.