Solids Handling Bench: Equipment, Installation and Experiments Case Study

Summary

Solids handling is a key part of many processes in chemical engineering and materials science. This document explains how to use a solids handling bench to measure and mix solids, and to represent the results.

Equipment in the Bench

The bench includes a solid mixing tank, a switch control, a metal frame for mixing, and an electric motor. It can also be used for size reduction with a ball mill.

Sieving and Particle Size

Sieving is used to measure particle size and distribution. It explains how to choose sieve sizes and clean sieves. It also covers how to record and plot the results.

Mixing of Solids

It describes how to mix solids and how to measure the degree of mixing. It explains how to calculate the variance for a mixture and for an unmixed system.

Electrical Supplies and Graphs

It discusses non-standard electrical supplies and how to modify equipment for different frequencies. It also explains how to represent data graphically, including cumulative plots.

Key terms

Test Sieve

An instrument used to measure particle size by passing solids through screens with square apertures.

Angle of Repose

The angle at which a material naturally piles up when poured.

Bulk Density

The weight of a material per unit of volume, including the air between particles.

Particle Size Distribution

The range of sizes of particles in a sample, often measured by sieving.

Median Size

The middle value in a particle size distribution, where half the particles are smaller and half are larger.

Variance

A measure of how spread out the particle sizes are in a mixture.

Questions this document helps with

• How do you measure particle size using a test sieve?
• What is the angle of repose of a material?
• How do you calculate the bulk density of a solid?

Summary written with AI from the document's text.