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Bài viết giới thiệu về cơ chế của công nghệ lọc hơi nước cao áp cũng như kết quả thí nghiệm, so sánh hiệu quả lọc khi sử dụng lọc hơi nước cao áp và lọc cao áp truyền thống. Lọc hơi nước chứng tỏ được hiệu quả khử nước cao đáng kể trong pha dịch chuyển cơ học ở cả hai thông số đầu vào là hàm lượng thể tích pha rắn của bùn đầu và chiều dày bánh lọc. | Journal of Mining and Earth Sciences Vol. 62 Issue 3b 2021 9 - 21 9 Dewatering fine solid suspension by using steam pressure filtration Hai Thanh Pham 1 2 Urs Peuker 2 1 Faculty of Mining Hanoi University of Mining and Geology Vietnam 2 Institute for Mechanical Process Engineering and Mineral Processing TU Bergakademie Freiberg 09599 Freiberg Germany ARTICLE INFO ABSTRACT Article history Steam pressure filtration is the combination of mechanical and thermal Received 17th Feb. 2021 in one equipment. This process shows the advantages in comparison to Accepted 09th May 2021 conventional pressure filtration by the characteristic of its distinction Available online 20th July 2021 mechanism. Application of steam pressure filtration can be listed Keywords dewatering the suspension of fine solid remove the contaminant Conventional filtration dangerous chemical dissolved ions protecting the human health as well as the environment. This paper shows the mechanism of steam pressure Filter cake height filtration as well as the result of tests the comparison related to the Mechanical displacement phase efficiency between steam pressure filtration and conventional pressure Solid volume fraction filtration. The steam pressure filtration shows the high efficiency in Steam pressure filtration. mechanical displacement phase in both input parameters solid volume fraction of suspension and the height of filter cake. The residual moisture content and saturation of filter cake using steam pressure filtration are lower 10 20 than those values of filter cake using conventional pressure filtration. Moreover some preliminary tests taking account to the drying phase of steam pressure filtration are also showed. The moisture of fine material filter cakes is around 6 13 . Through the result of tests interpretation and discussion the application of steam pressure filtration is possible in the field of mineral processing and metallurgy. Copyright 2021 Hanoi University of Mining and Geology. All
