Describing Process Agus D. Priyanto
First of all, letters and packets are collected in bags from pillar boxes, post offices, in post office vans. They are then taken to the sorting office, where the bags are emptied and the letters separated from the packets. Following this step, the letters are put through machines so that the stamps can be cancelled. In this process, the date and the place of sorting are put over the stamps on each envelope.
In the next stage, the sorting of the letters take place, according to the province they are addressed to. This is done by placing them in the appropriate pigeon hole. Subsequently, the letters are taken from the holes, and placed in baskets which are then put onto a conveyor belt. While on this conveyor belt, the baskets are directed to the appropriate secondary sorting by means of coding pegs.
At the secondary sorting frames, the letters are put into towns in the province. Later, the letters are tied in bundles and a label is put on showing the towns they are addressed to. Finally, the letter bundles are placed in bags, which have the Post Office seal and Destination Code number on them, and then these are sent to the railway station.
Paper-Recycling Process Collecting
Sorting & Separating from other items Drying & Storing Making the porridge
Rolling & Making new product Pressing & drying
Screening
General Statement • Almost all aspects of human life use paper, resulting much wastepaper. This waste-paper can actually be recycled so that people will not run out of paper. The paperrecycle paper includes some stages.
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First, waste-paper is collected from many homes, schools and offices. Waste-paper that is co-mingled with other substances is separated. Also, all non-recyclable is removed. After sorted, the paper is dried and stored until it is needed.
• The paper goes along a conveyor belt and is tipped into a huge pot. The pot is like an enormous mixing bowl, it spins the paper around with lots of water until it becomes damp and falls into pieces.
• The soggy paper (porridge) is poured onto a screen that shakes it very hard from side to side so most of the water comes out straight away. The water is reused elsewhere in the factory.
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The porridge is run over a series of rollers where the rest of the water is pressed out and dried off. The paper is rolled up at the end and is made into new paper products.