What are the Uses of Boilers and Kilns?

Boilers and kilns are both thermal devices used to heat objects, but they have some differences in design, purpose, and working principles.

Design and Structure
Boiler: A boiler is a device used to generate steam or hot water. It usually consists of a container, combustion equipment, and heat transfer surfaces (such as tubes or wall panels). Boilers produce heat by burning fuel and transferring it to a working fluid (usually water) to create steam or hot water.

Kiln: A kiln is used to process raw materials, usually by heating them to high temperatures to change the properties of the substance. Its structure usually includes a furnace, heating source, and exhaust system. Kilns are commonly used to make ceramics, glass, plaster, etc., as well as other processes that require high-temperature processing.

Use
Boiler: Mainly used to produce steam for power generation or heating systems. Boilers in industry are also used in many processes such as chemical production, paper manufacturing, etc.
Kiln: Mainly used to heat raw materials to achieve changes in chemical or physical properties. Kilns are widely used in the ceramic industry, metallurgical industry, building materials manufacturing, and other fields.

Working Principle
Boiler: Generates thermal energy by burning fuel and transferring it to water or other working fluid to produce steam or hot water.
Kiln: Heat raw materials directly or indirectly to the required temperature to cause chemical reactions or physical changes.

In general, boilers are mainly used to produce steam or provide hot water, while kilns are mainly used to process raw materials at high temperatures to achieve specific changes in chemical or physical properties.