DUST COLLECTOR

Introduction – Once the full welding of coils are done, they are subjected to various tests which ensures that following operations namely projection welding, bending and full welding are performed accurately and the coil will then be sent for Radiography testing.

These tests includes:

·         Ball test.

·         Hydraulic test.

In ball test,a metallic ball of diameter same as that of internal diameter of the coil’s pipe is passed via pneumatic process i.e. passing compressed air through the pipe. This process ensures that the bends are perfect.

But it has been observed that huge amounts of dust get generated from the pipes. To eradicate the above mentioned problem we developed a device and named it as DUST COLLECTOR.

MANUFACTURING FLOW PROCESS –

We started with searching used metallic cans which are being used for painting coil modules. So after finding them we cleaned them with the help of thinner for removing inner solidified paint. After that our next aim was obtaining PVC(polyvinyl chloride) pipes and an accurate hole(diameter same as that of pvc pipe) was made on the lid of the can. Now one end of pvc pipe was inserted into the can(which is filled with water) and other end is fitted to a piece of pipe. Now the successive end of m/s pipe was calibrated with a butt joint clamp. The clamp acts as a junction between the dust collector and the coil.

Now for pipes/coils of different diameter we use butt-joint clamps of same diameters as well. Now when the compressed air is passed , the dust gets collected into the dust collector and we must ensure that the lid of the can is perfectly sealed which inturn prevent sudden splash of water coming out of the water filled can.

FURTHER MODIFICATIONS-

Since the container in dust collector is completely sealed, passage of high pressure compressed air can act as a potential threat because the pressure is around 10 bar. To nullify the threat we provided a vent in the form of of a bent tube welded and attached at the top of the collector .This tube is TIG welded with high precision on the lid.

###pictures to be uploaded soon##