How does a sand dryer heat? Many customers are not very clear about the fuel, heating tools, and heating methods used for heating the sand dryer during the process of purchasing it. Feihong Machinery has rich experience in the production of sand dryers and will provide detailed answers to customers' questions and areas of confusion. Regarding how the sand dryer heats, it is necessary to start from the sand drying process.

In the sand drying process, using the heat generated by fuel to heat the sand inside the main unit is a very important step. The heat of the sand dryer enters the main unit through the exhaust fan at the end of the process and exchanges heat with the sand. The heating tool is the hot blast stove, which is connected to the main unit of the sand dryer. A layer of refractory bricks is lined inside the hot blast stove to prevent heat loss and also to prevent operators from being scalded. The hot blast stove itself has three small openings. The first two are one for adding fuel (usually coal) and one for removing coal cinders, and the one at the back is the maintenance door. Feihong Machinery increased the size of the maintenance door during its design to facilitate the entry of maintenance personnel.

The fuels for heating the sand dryer can be coal, natural gas, etc. It is necessary to choose a suitable fuel according to the actual situation of the manufacturer. The premise is still to consider the production cost. However, coal is still the most commonly used fuel. When the sand enters the main unit through the sand flow pipe, under the action of the exhaust fan, the heat enters the main unit and exchanges heat with the sand. After the design and improvement by Feihong Machinery, the heat can fully exchange heat with the sand, maximizing the transfer of heat to the sand and avoiding a large amount of heat loss. This is a direct and effective way to save customers' fuel purchase costs and improve economic efficiency.