INTRODUCTION :

Construction of buildings requires sand as an important ingredient. Sand is used at different stages in construction right from the foundation to the finishing work i.e. plaster. This sand is needs to be screened properly for various stages in construction work, i.e. size of sand for construction work is slightly coarse whereas that used for plaster work is fine. Conventionally screening is normally done manually using fixed screens. This manual process time consuming and laborious takes a lot of time and cost. Sieving of sand is carried out using rectangular or round mesh which is inclined at certain angle. This causes a relative motion between the sand particles and the sieve. Depending on their size the individual sand particles either pass through the sieve mesh or retained on the sieve surface. There are different machines that are being used for sand sieving processes. So, I decided to make sand sieving machine powered by drill machine. By using of this machine the time consumed during the whole process of preparing the concrete is reduced.

Generally while preparing the concrete or sand for construction purpose, the process of sieving are carried out manually or using of machine. Sieving of sand is carried out using rectangular mesh which is inclined at certain angle. In the present sand sieving method, the sample is subjected to horizontal movement in accordance with the chosen method. This causes a relative motion between the particles and the sieve. Depending on their size the individual particles either pass through the sieve mesh or retained on the sieve surface.

There are different machines that are being used for sand Sieving, but I have decided to make sand sieving machine which have low cost and simple in operation. This project focuses in design, fabrication of the mechanical part of machine and the system of the sieve machine. Before I make this machine, it must compare with other product in market. It is because to study and to create a new design with new feature. This machine has new design and it is drill powered sand sieving machine.

The Horizontal sieving machine is very easy to construct and can be operated easily. It is very economic among this kind of machines. This project is fabricated with the help of parts like a drill, metal parts, angle grinder shaft and shaft holder with bearing, sieving mesh, metal sheet and nut bolts. The horizontal sieving machine is worked on the basis of crank and slider mechanism. Here crank is attached to the sieve box the power is given by drill machine and other mechanical arrangement. When the sieving box moves in the reciprocating motion the sand sieving process is performed.

Parts Used :

Body Frame Parts:-

Metal piece 75.40 inch length *1.5 inch width * 5mm thickness (24 inch diameter)

Metal piece 72.25 inch length *1.5 inch width * 5mm thickness (23 inch diameter)

4 Nos. metal piece 31 inch length *1.25 inch width * 10mm thickness (For leg)

4 Nos. Metal piece 23 inch length *1 inch width * 5mm thickness (Leg support)

3 Nos. Metal piece 1.5inch*1.25inch*10mm

Sieving Mesh Parts:-

Metal piece 59.70 inch length *1.5 inch width *5mm thickness (19 inch diameter)

Metal mesh 21 inch * 21 inch

Metal piece 21.5 inch length *1 inch width *5mm thickness (Mesh support)

Metal sheet

Heavy chain

Drill Support Parts:-

Plywood 10 inch* 4.5 inch *18mm thickness (For drill base)

Metal piece 7 inch length *1.25 inch width *10mm thickness (For drill base support)

Metal piece 21 inch *1.5 inch *5mm thickness

2 Nos. wooden pieces 4.5 inch *1.25 inch *1.25 inch (For drill head support)

Metal piece 4.5 inch *1 inch* 5mm thickness (For drill head support)

Angle grinder housing with bearing and shaft

L- Section angle 1.75 inch *2 inch

0.75 inch diameter shaft (1 inch length)

Metal piece 6 inch length *1 inch width *5mm thickness (Crank)

13mm electric drill machine

Allenky Bolts And Locknuts:-

6mm allenky bolts with locknuts

8mm allenky bolts with locknuts

3/16 allenky bolts with locknuts

2 Nos. 8mm bolts with fly nuts (5 inch length)

For better understanding, Watch the video given below.