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Pemisahan zarah mengguna teknik ayak: Kesan parameter pengoperasian ke atas kecekapan
Siti Masrinda Tasirin1, Ching, Chang Wun2.
Separation of solid mixtures of different particle sizes into two size grades by means of a screening surface is widely used. For thousands of years the fundamental principle of screening has been and still is maintained. Despite of the advantages such as easy operation and low cost of maintenance, the overall efficiency of the process is of importance for optimization purposes. In this case, investigation on the effect of several operating parameters such as time, vibration frequency, percentage of coarse (oversize) in the feed material and total loading on the overall efficiency of the separation process has been carried out using solid mixtures of sand and glass beads. A general form of empirical correlation has been obtained, from which suitable operation conditions for optimum process efficiency may be determined.
Proses pemisahan campuran zarah dengan saiz yang berbeza-beza kepada dua pecahan hasil atas yang kasar dan hasil bawah yang halus menggunakan kaedah pengayakan adalah digunakan secara meluas, dan masih mengekalkan prinsip asas sejak beribu tahun dahulu. Di sebalik kelebihan seperti pengoperasian yang mudah dan kos penyelenggaraan yang rendah, kecekapan proses pemisahan keseluruhannya adalah penting bagi mengoptimumkan kos serta penghasilan. Untuk ini, kajian telah dijalankan menggunakan campuran pepejal yang terdiri daripada zarahan pasir dan manik kaca, bagi mengetahui kesan parameter-parameter pengoperasian iaitu tempoh pengayakan, frekuensi getaran, kandungan zarah kasar dan jumlah muatan suapan, ke atas kecekapan keseluruhan proses. Hasil kajian telah berjaya menghasilkan satu hubungan am yang mana keadaan pengoperasian yang memberikan kecekapan proses yang paling optimum dapat ditentukan.
Affiliation:
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