A method for making bauxite positive flotation concentrate filter press filter cloth

Abstract

The invention relates to a manufacturing method for bauxite direct flotation concentrate press-filtering and separation filter cloth, and aims at effectively solving the problem that the contents of moisture and filtrate suspended matters are too high. A first layer and a second layer on the first layer are overlapped together and are square; fixed edges are arranged at the upper and lower side edges and left right side edges of the square shape; trapezoid grooves are formed in the centers of the fixed edges of the left and right sides; fixed holes are formed in the upper fixed edge and the fixed edges of the left and right sides; a round central hole is formed in the center of the square shape; a third layer is arranged on the second layer and is composed of inner and outer parts; the outer part of the third layer is in a square annular shape, and the inner part of the third layer is a circular ring arranged at the center of the outer part; the first layer and the second layer are aligned to the edge of the third layer, and are sewed by a four-line sewing machine; and the circular ring of the third layer is located on the periphery of the round central hole of the second layer and is sewed by a three-line sewing machine. By virtue of the manufacturing method, the problem that the contents of the moisture and the filtrate suspended matters of concentrate are too high is solved, the squeezing time is short and the working efficiency is high.

Description

technical field [0001] The invention relates to a method for manufacturing a bauxite positive flotation concentrate filter press filter cloth. Background technique [0002] Use bauxite waste slag to produce concentrate through positive flotation process. The aluminum-silicon ratio of bauxite waste slag is 2.00-3.50. The flotation process adopts the processes of selection, roughing and sweeping. The first stage is dehydration in the concentrate settling tank, the dehydration rate is 35%-45%; the second stage is press dehydration with KZGMF500 / 2000-U filter press. %, the aluminum-silicon ratio of the product concentrate is 5.5-6.5, and the particle size distribution of the concentrate is: -10μm20~25%, 10-19μm13~18%, 19-38μm30~35%, 38-75μm15~20%, 75 -150μm8~12%. Since all the system water in the positive flotation process is self-circulating and recycled, it is required that the float in the filter press filtrate is 0.5-1.5 g / l during the second-stage dehydration of the conce...

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Problems solved by technology

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a method for making bauxite positive flotation concentrate press filtration separation filter cloth, which can effectively solve the problem of high water content in the concentrate ore, high floating matter in the filtrate and Single-layer, single filter cloth material and production process of filter press, it is difficult to meet the secondary dehydration needs of the concentrate

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