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Cell type multi-stage flotation separation equipment for coal ash

A separation equipment, fly ash technology, applied in flotation, solid separation and other directions, can solve the problems of high material cost and processing cost, unsatisfactory flotation effect, high operating cost, save energy, improve flotation effect, The effect of high carbon content

Inactive Publication Date: 2012-10-31
FUJIAN LONGYAN LONGNENG FRYASH COMPREHENSIVE UTILIZATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The equipment performs secondary flotation on fly ash by setting the first stage flotation column and the second stage flotation column. Since the structure of each stage flotation column is relatively complicated, the structure of the secondary flotation system is more complex. Complex, which leads to high material cost and processing cost; at the same time, due to large power consumption, its operating cost is high; in addition, its flotation effect is not ideal

Method used

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  • Cell type multi-stage flotation separation equipment for coal ash
  • Cell type multi-stage flotation separation equipment for coal ash

Examples

Experimental program
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Effect test

Embodiment 1

[0032] like figure 1 As shown, the trough flotation separation equipment in this embodiment includes: a material preparation device 11, a long trough body, and an aeration device (eg, a blast aeration device) for generating air bubbles.

[0033] The lower part of the material preparation device 11 is connected to a feeding pipeline 1102 , which leads to the raw material inlet through 1102 .

[0034] The elongated trough body includes a head and a tail, the top of the head is provided with a raw material inlet, and the upper part of the tail is provided with a flotation outlet; the trough is divided into four flotation units by three plug-in devices, which are respectively It is the first flotation unit 12 , the second flotation unit 13 , the third flotation unit 14 , and the tail flotation unit 15 .

[0035] The plug-in device between the first-stage flotation unit 12 and the second-stage flotation unit 13 includes a fixed plug-in plate 1202 and an adjustable weir flow plate ...

Embodiment 2

[0045] like figure 2 As shown, the difference between Embodiment 2 of the present invention and Embodiment 1 is:

[0046] 1. The flotation units are separated into three sections by two plug-in devices, which are the first section flotation unit 22, the second section flotation unit 23, and the tail section flotation unit 24;

[0047] 2. Each filter plate is inclined, and each filter plate is located on the same slope;

[0048] 3. The heights of multiple bubble diffusion devices decrease sequentially from the first section to the last section;

[0049] 4. The displacement of the air compressor is 6m 3 / min, the pressure is 0.7MPa, and the power is 37KW, which can be used by three bubble diffusion devices at the same time.

[0050] In this embodiment, the power consumption unit for moving the mixed material in the flotation equipment upward is the air compressor (37KW / unit), that is, the power consumption for moving the mixed material in the flotation equipment upward in th...

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Abstract

The invention provides cell type multi-stage flotation separation equipment for coal ash. The cell type multi-stage flotation separation equipment comprises a strip-shaped cell-shaped body which comprises a head part and a tail part; a raw material inlet is formed at the upper part or the top of the head part, and a flotation outlet is formed at the upper part or the top of the tail part; and the cell-shaped body is divided into two flotation units through at least one insertion plate device; a tail ash outlet is formed at the bottom of each flotation unit. The multi-stage flotation separation equipment further comprises an aeration device used for generating air bubbles, wherein the aeration device comprises air bubble diffusing devices which are same as the flotation units in quantity and are positioned in each flotation unit respectively; each air bubble diffusing device comprises an air diffusing hole or an air diffusing pipe which is used for air bubble overflow; and each insertion plate device comprises a weir flow adjusting plate capable of moving up and down, and the sizes of the overflow holes on the insertion plates can be adjusted through depth or height adjustment of the weir flow adjusting plate. The cell type multi-stage flotation separation equipment for coal ash has small power consumption and simple structure, is easy to process, and reduces manufacturing cost; moreover, the ash content in high-carbon ash obtained through flotation by the multi-stage flotation equipment can be reduced by about 3 to 5%, so that the flotation effect is improved, and high-carbon ash with high carbon content is obtained.

Description

technical field [0001] The invention relates to using fly ash to manufacture activated carbon, and more particularly, the invention relates to a trough-type fly ash multi-stage flotation separation equipment. Background technique [0002] The main components of fly ash are ash containing oxides such as silicon dioxide, aluminum oxide, iron oxide, calcium oxide, magnesium oxide, sulfur trioxide, and unburned carbon particles, wherein the unburned carbon particles are After extraction, it can be used as a raw material for the preparation of activated carbon. [0003] Due to the light weight of carbon particles, flotation is usually used to extract carbon particles from fly ash. The prior art has provided a variety of equipment for flotation of carbon particles from fly ash. For example, Chinese Patent 200810031474.7 discloses a special flotation column for fly ash, a slurry distributor is installed on the top of the flotation column cylinder, a multi-layer bubbling plate is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/22
Inventor 许闽清
Owner FUJIAN LONGYAN LONGNENG FRYASH COMPREHENSIVE UTILIZATION