Skim Rubber or By-products from the production of latex.Comes from the centrifugation process of latex which will get 8% rubber. Depending on the efficiency of the blender and adjusting machines. Skim latex using sulfuric acid in the capture. And will be transformed into skim blocks or skim crepe. Skim block production. Bring the rubber through the cutter. Then wash off the acid before grilling. With these passes into the pond or trough. The rubber blocks will be rolled into sheets, through shredders, Import oven, once out of the oven, was taken into briquettes. And then packaging it can skim rubber blocks. Skim Crepe production take the rubber through the cutter To make the tire a small lump and wash the acid from the rubber, Rolled into sheets and packing.
Receiving the latex tail from the centrifuge The latex tail that comes out of the centrifuge will have a DRC value of about 4 - 8%. Latex will be rested in the pond. To allow ammonia to evaporate. The main objective of ammonia removal is reduce the amount of sulfuric acid in the rubber grips. If the latex tail has a high amount of ammonia, the acid must be used to capture the amount of rubber.
1. Stirring the latex with acid. When the tail of the latex passes through the amnonia Will flow into the reception pond after that will enter the skim rubber, by adding sulfuric acid to the rubber mixing pond Which before the latex tail is clumped Be sampled To test the VFA, ammonia and DRC, then leave the latex to hold for at least 4 hours
2. Ironing and cutting of skim rubber After the latex lump is caught by adding sulfuric acid Will bring skim rubber in a lumpy condition, also known as gypsum rubber, rolled up into sheets with rolling machines By using a long cutting knife in the pond in pieces To make it easier to lift up and stay at the skim soaked skim rubber which is packed with clean water After that, the rubber sheet will be rolled out with a rolling machine. To be ready to be cut
3. Freezing the skim rubber sheet that has been rolled by machine rolled. Will be transported to the pond or rubber pond for about 24 hours to pass into a small shredder.
4. Rubber skim cut sub. Will be pumped up to the glider to transfer to the pickup truck that supports the conveyor In which the oven is heated by about 105-120 degrees Celsius using solar oil or diesel oil as fuel for rubber drying At the same time, control of the parameters of the rubber, such as temperature, humidity, etc.
5. Scaling and filling skim rubber After skim tires have passed the temperature and humidity levels or called skim blocks. When getting the skim block, which is equal to 33.33 kg, the weight of the block will be weighed into the compressor. To compress the bars into the shape and size according to the customer
Skim Rubber Type
Skim Blocks (Rubber Blocks)
Skim Crepe (Rubber Sheet)
Skim rubber block 33.33 kg. / blocks
Skim Crepe 50 kg. / bundle
Skim Rubber Properties
Skim rubber blocks are rubber blocks. There are restrictions on industrial use. Because of the low rebound properties, such as high nitrogen values, softness index (PRI) and low viscosity (Mooney Viscosity), dark colors, skim tires Caused by bringing rubber scraps to compress together into new bars Skim block rubber prices are relatively cheap and the quality is acceptable. For jobs that do not require very durable features
Skim rubber is applied to a variety of industries.