Sand Sieving Machine by Vibration Shaker System

Sand Sieving Machine by Vibration Shaker System - Sand is very important and its use in the foundry industry. Sand is the main material in the making of molds. Sand used to make the mold must meet several requirements, including the particle size uniformity which moisture resistance, conformability, plasticity and permeability. One objective is air, steam and gas in the mold is able to leave not cause defects such as porosity products.

Sand usually used derived from nature still mixed with other minerals such as soil, clay, gravel and rocks. Also frequently encountered conditions and sandy gravel sizes are not uniform, even clot. Therefore, for the purposes of foundry sand, natural sand treated first by sieving.

Sand sieving is the process of separation of sands or other classification process of the material grain size. Sand sieving process in foundry industry normally uses the principle of sand vibration sieving machine. The vibration may be derived from a crank system or vibration motor. But in this article will explain the crank vibration system or called Sand Sieving Machine by Vibration Shaker System.

Construction of Sand Sieving Machine 

Sand sieving machine construction consists of several components as shown in the following figure.

Construction of Sand Sieving Machine

Sieving Machine Concept

Sieving machine serves is to remove large grains with a small grain through a sieve. Separation occurs when the sand is placed on top of a filter having holes size. Sand having a size smaller than the sieve pass hole, while the sand having a size larger than the hole in the filter will be trapped in it. Screen over the hole, the greater the retention size in the filter sand. To produce a grain of sand at a uniform size, it should be at least twice the filter. The first sieving is done to get rid of the sand with a larger than standard withholding sand filter is ignored. The second sieving is done to get rid of the sand with a size too small means that the sand filter is ignored. 

Vibration Shaker Concept of Sand Sieving Machine

The concept of vibration shaker takes the concept of gravity, where the material will tend to go down when there is an empty place. A little material will be easier to reach the lower point of large material because the large material will form a larger gap can be easily introduced by small material. Vibration shaker received will displace material and open a wider space and speed up the decline of small material. Therefore, the vibration shaker will make little material moves down, and called the large material for mounting.

Principle of Sand Sieving Machine

This machine combines the principles of vibration shaker and sieving machine. The vibration shaker generated by a crank system that converts rotary motion to translational movement or a back and forth. Forth rounds crankshaft of an electric motor connected by a v-belt. The movement back and forth on a screen made of a material which is on top moves to accelerate the reduction of material in the small hole of the filter and through the line. Sieve construction made with inclined at an angle, so that during the back and forth movement, much material left in the filter is moved through the upper channel.

Operations of Sand Sieving Machine

Work mechanism of the sand sieving machine is as follows:

1. Place sand material through the hopper.
2. Turn on the electric motor.
3. Round electric motor crank drive v-belt transmission.
4. Direction of the crankshaft sieve move back and forth.
5. Sieve movement will sand material spread quickly.
6. Gravel will be retained in the filter and the upper channel
7. Sand filter end jump into the hole and the bottom channel.
8. Input another sand material if the material has some sand in the hopper.
9. Turn off the electric motor when the selection process is completed.
10. Clean the filter residual material is still stuck in the top of the filter.

That is a description about the Sand Sieving Machine by Vibration Shaker System. If you find misconceptions in this post, please provide the correction in the comment box.