ATTRITION MILL Meaning and
Definition
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An attrition mill refers to a type of grinding machine that is used to reduce and refine materials such as solid particles, powders, grains, and fibers through a process of mechanical and abrasive force. Also known as attritor mills or stirred ball mills, they are widely utilized in various industries including pharmaceuticals, food processing, chemical engineering, and mining.
The typical attrition mill consists of a cylindrical chamber that contains a series of rotating paddles or discs, which may be vertically or horizontally aligned. These paddles or discs continuously move and collision with the materials, causing them to break down into smaller particles. The resulting comminution is achieved through several mechanisms, including impact, friction, shear, and compression.
Attrition mills are widely appreciated for their ability to achieve fine and uniform particle size reduction. Their effectiveness lies in the high-speed movement of the grinding media and the close clearance between the media and the chamber walls. This combination ensures that the materials are subjected to repeated and intense collisions, resulting in effective size reduction.
The specific design and features of attrition mills can vary depending on the intended application. Some models may include features such as cooling systems, adjustable grinding speeds, and multiple grinding chambers. Additionally, advanced attrition mills may incorporate additional technologies like air classifiers to separate and classify particles based on size.
In summary, an attrition mill is a versatile and efficient grinding machine that uses mechanical and abrasive forces to reduce and refine various materials into smaller and more desirable particles.
Common Misspellings for ATTRITION MILL
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Etymology of ATTRITION MILL
The word "attrition" in "attrition mill" comes from the Latin word "attritio", which means "rubbing against" or "wearing down". The term was then borrowed into English in the 15th century, referring to the process of wearing something down through friction or continuous rubbing.
The term "attrition mill" specifically emerged in the early 20th century as a name for a machine used in the process of attrition grinding. The grinding action of this machine involves the use of abrasion and friction to reduce solid materials into smaller particles. The particles are repeatedly rubbed or worn down between moving surfaces, resulting in size reduction.
So, the etymology of "attrition mill" is rooted in the concept of attrition, meaning the wearing down or reduction of materials through friction.
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