Optimalisasi Sistem Perawatan dan Perbaikan Mesin Vertical Mill di PT. Semen Padang

Abstract

Vertical Mill is one of the main equipment in the Indarung IV factory PT. Semen Padang. This Vertical Mill is used to grind / crush the main ingredients of making cement such as Limestone, Silica stone, Clay, and Iron sand. Milling of this material is done with the help of a tool called a Roller Tire and grinding table. So that the Tire Tire and grinding table always work as expected, the Roller Tire and grinding table must be maintained and repaired continuously and planned. Major damage that is often encountered is the occurrence of wear and tear on the Tire Roller and the grinding roller. Countermeasures by adding meat to the Tire Roller and grinding table using welding. With the maintenance and repairs are well scheduled, then we can avoid the causes of a damage from the beginning.

Utilization of Solid Waste PT Semen Bosowa as Zeolite for Industrial Waste Water in South Sulawesi

“…The maximum flow velocity of the solution to penetrate the exchange layer (the required residence time of the solution in the exchange layer) is determined by the time for the exchange process on each exchange particle. If the speed is too high (too short residence time), not all ions to be separated can be exchanged so that the desired liquid purity requirements are not achieved [11]. Industrial wastewater is waste in liquid form produced by industrial activities that are discharged into the environment and are thought to reduce the quality of the environment.…”