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A high-efficiency filtration method for concentrate ore pulp

A high-efficiency filtration and concentrate technology, applied in filtration and separation, separation methods, chemical instruments and methods, etc., can solve problems such as affecting filtration efficiency and loss of function, and improve filtration efficiency, reduce moisture content, and avoid delayed dosing. effect of the phenomenon

Active Publication Date: 2018-07-27
官景梁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These three dosing point setting methods all have the following defects: since the dosing point is set before the concentrate slurry mixing tank, the pulp that has been flocculated into large particles will be broken up again after entering the concentrate thick slurry mixing tank. Small particles lose their original function, which greatly affects the filtration efficiency

Method used

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  • A high-efficiency filtration method for concentrate ore pulp
  • A high-efficiency filtration method for concentrate ore pulp
  • A high-efficiency filtration method for concentrate ore pulp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as figure 1 As shown, in the present embodiment, the concentrate pulp filtration system consists of a concentrate pulp launder 1, a concentrate thickening well 2, a concentrate thick slurry pump 3, a concentrate thick slurry filter separation box 4 and a vacuum filter connected in sequence. The vacuum filter 5 and the overflow port of the concentrated ore thick slurry filter sub-mine box 4 are connected to the concentrate ore slurry launder 1 through an overflow pipeline, and an overflow pump 22 is arranged on the overflow pipeline.

[0046] The iron ore concentrate slurry with an iron concentrate concentration of about 20% enters the concentrate concentration well 2 from the concentrate slurry flow tank 1, and in the concentrate concentration well 2, after overflow and dewatering treatment, the bottom flow of the concentrate concentration well 2 is obtained Concentrate pulp with a concentration of more than 60%, under the action of the concentrate pump 3, the conc...

Embodiment 2

[0051] Such as figure 2 As shown, the concentrate pulp filtration system of the present embodiment is composed of the concentrate pulp launder 1, the concentrate thickening well 2, the concentrate thick slurry pump A17, the concentrate thick slurry mixing tank sub-ore box 18, the concentrate thick slurry The slurry mixing barrel 19, the concentrated ore thick slurry pump B20, the concentrate ore thick slurry filter separation box 4 and the vacuum filter 5 are composed; the overflow port of the vacuum filter 5 and the concentrate thick slurry filter separation box 4 passes through the overflow The flow pipe is connected to the concentrate ore slurry launder 1; in the present embodiment, two groups of concentrate ore thick slurry mixing barrels 19 and three groups of vacuum filters 5 are provided.

[0052] The iron ore concentrate slurry with an iron concentrate concentration of about 20% enters the concentrate concentration well 2 from the concentrate slurry flow tank 1, and i...

Embodiment 3

[0059] Such as image 3 As shown, in the present embodiment, the concentrate pulp filtration system is composed of the concentrate pulp launder 1, the concentrate thickening well 2, the concentrate thick slurry pump A3, the concentrate thick slurry mixing tank sub-ore box 18, the concentrate slurry, which are connected in sequence. Ore thick slurry mixing barrel 19, concentrated ore thick slurry pump B20 and plate and frame filter press 21 are composed; the overflow port of plate and frame filter press 21 is connected to concentrate ore slurry launder 1 by overflow pipeline; In the present embodiment, set There are 2 groups of concentrated ore thick slurry mixing barrels 19 and 3 groups of plate and frame filter presses 21, which are respectively connected through corresponding slurry conveying pipelines.

[0060] The iron ore concentrate slurry with an iron concentrate concentration of about 20% enters the concentrate concentration well 2 from the concentrate slurry flow tank...

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Abstract

The invention relates to an efficient filtering method of concentrate pulp. In a concentrate pulp filtering system with no concentrate thick pulp mixing tank, a dosing point of a filter aid is set behind a concentrate concentrated large well; in a concentrate pulp filtering system with a concentrate thick pulp mixing tank, a dosing point of the filter aid is set behind the concentrate thick pulp mixing tank; a filter aid dosing device is composed of a filter aid storage tank, a filter aid feeding pump and a filter aid header tank which are sequentially connected and is controlled through an automatic dosing control system; the automatic dosing control system is composed of a control device, a pulp flowmeter, a filter aid flowmeter, an electrically operated valve and an electromagnetic valve, wherein the pulp flowmeter, the filter aid flowmeter, the electrically operated valve and the electromagnetic valve are connected with the control device. According to different concentrate pulp filtering systems, the filter aid dosing points are reasonably set, and the dosing amount is controlled through the automatic dosing control system; accordingly, the concentrate pulp filtering efficiency is greatly improved, and the filter cake water content is lowered.

Description

technical field [0001] The invention relates to the technical field of pulp filtration and sludge press filtration, in particular to a high-efficiency concentrate pulp filtration method suitable for iron ore, aluminum ore, coal mine or other pulp filtration and sludge press filtration processes. Background technique [0002] In the beneficiation process of iron concentrate, the filtration of concentrate slurry is an important process factor in the beneficiation process, which plays an important role in the production cost of iron concentrate and the quality of iron concentrate. [0003] In the existing beneficiation process, the degree of refinement of ore powder after grinding and the proportion of fine-grained ore powder continue to increase. In addition, after the ore powder passes through reverse flotation roughing to reduce impurities, the concentrate pulp becomes finer. , more viscous, the difficulty of concentrate dehydration operation is increased, and the filtration...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D37/02
CPCB01D37/02
Inventor 官景梁陈国岩
Owner 官景梁
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