A laboratory crusher, often referred to as a jaw crusher, is a specialized piece of equipment designed to reduce solid samples such as rocks or crystals into smaller particles, typically powder or dust.
This process is crucial in sample preparation for various scientific analyses, ensuring that the samples are representative of the original material and facilitating easier handling and processing.
How Does a Laboratory Crusher Work?
The primary mechanism of a laboratory crusher is the jaw crusher, which consists of a fixed plate and a mechanically-operated, gyrating plate.
These plates are arranged in a funnel shape, with a wider feed opening at the top and a narrower discharge aperture at the bottom.
The gyrating plate moves against the fixed plate in a rocking motion, crushing the samples as they move towards the discharge area.
This action is repeated until the material is reduced to the desired particle size.
Types of Crushing Equipment
There are three main types of crushers: primary, secondary, and tertiary. Each type serves different applications and stages of the crushing process.
For instance, the double roll crusher, also known as the laboratory roller crusher, operates by having two rollers rotate in opposite directions, causing the material to be crushed under the force of squeezing and biting.
The gap between the rollers can be adjusted to control the particle size of the crushed material.
Applications and Additional Features
Laboratory crushers are essential for sample preparation in scientific analysis, ensuring the integrity and quality of samples.
They can be integrated with additional equipment to automate procedures or to meet specific requirements.
For example, specialized hydraulic laboratory crushers can trim excess material and drill hollow cores into samples before the crushing process begins.
This precision ensures that the samples are finely powdered, suitable for detailed analyses such as XRF (X-ray fluorescence) analysis.
In summary, a laboratory crusher is a vital tool in the scientific community, enabling the efficient and accurate reduction of solid samples into manageable and analyzable forms.
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