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Pulverized fuel ash flotation separation equipment with physical separation device

A separation equipment and physical separation technology, used in flotation, solid separation, etc., can solve the problems of difficult separation and low flotation efficiency of carbon particles, and achieve the effects of improving precision, improving flotation efficiency and reducing circulation volume.

Inactive Publication Date: 2013-06-12
FUJIAN LONGYAN LONGNENG FRYASH COMPREHENSIVE UTILIZATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The disadvantage of the above technical solution is that the carbon particles are usually closely combined with the ash and are not easy to separate, so the flotation efficiency of the carbon particles is low

Method used

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  • Pulverized fuel ash flotation separation equipment with physical separation device
  • Pulverized fuel ash flotation separation equipment with physical separation device
  • Pulverized fuel ash flotation separation equipment with physical separation device

Examples

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Embodiment 1

[0036] Such as figure 1 As shown, Embodiment 1 of the present invention includes: a material storage device 1, a distribution device 2, a vertical cylinder 3, a cone-shaped air diffuser 4, a multi-layer flotation plate 5, an air supply device 6, and a physical separation Devices such as ultrasonic separation device 8, tail ash box 7, filter plate 9, overflow collection section 301, tail ash collection section 305.

[0037] The cylinder body 3 arranged vertically can be divided into three parts, from top to bottom: the first flotation section 302 , the diffusion cone section 303 , and the second flotation section 304 . Wherein, the first flotation section 302 is relatively thin, and a layer of flotation plates 5 is arranged inside it. The second flotation section 304 is relatively thick, and a cone-shaped air diffuser 4 and a layer of flotation plates 5 are arranged in it. The diffusion cone section 303 is located between the first flotation section 302 and the second flotati...

Embodiment 2

[0047] figure 2 Shown is embodiment 2 of the present invention, and its difference with embodiment 1 is: 1, the number of distributing pipeline 201 is 6; 3. The tail ash pipeline 307 is provided with a slurry pump 308; 4. The tail ash pipeline 307 is also provided with a branch pipeline as the ash discharge pipeline 311, the tail ash pipeline 307 and the discharge pipeline Ash pipes 311 are provided with valves. Similarly, according to the situation of the fly ash raw material and the specific process requirements, the tail ash can re-enter the flotation separation equipment through the tail ash pipeline 307 for flotation to recover the carbon particles therein; when the carbon content in the tail ash is too low , then discharged through the ash discharge pipe 311.

Embodiment 3

[0049] image 3 Shown is embodiment 3 of the present invention, and its difference with embodiment 1 is: 1, flotation plate is 3 layers; 2, the number of distribution pipeline 201 is 4; 3, tail ash box 7 is positioned at tail ash pipeline 307 and set outside the tail ash pipe 307, the height of the end of the tail ash pipe is above the top flotation plate, and the end of the tail ash pipe is provided with a liquid level regulating device for adjusting the height of the end of the tail ash pipe ; 4. There is no circulation pipeline 310 between the tail ash box 7 and the storage device 1 .

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Abstract

The invention discloses pulverized fuel ash flotation separation equipment with a physical separation device. The equipment comprises a vertically arranged cylinder body, an overflow collection section positioned on the top of the cylinder body, a tail ash collection section positioned at the bottom of the cylinder body, a gas disperse device positioned in the cylinder body, a physical separationdevice positioned on the wall or the gas disperse device of the cylinder body, multiple layers of flotation plates which are positioned in the cylinder body and alternately arranged, a distribution device positioned above the overflow collection section, as well as a gas supply device which is communicated with a plurality of pores on the gas disperse device through a first gas pipeline. The pulverized fuel ash flotation separation equipment has the advantages that: separation of carbon particles and dusts are improved by arranging the physical separation device, and carbon particles with ultrafine granularity are formed, so that the flotation efficiency of the carbon particles is improved.

Description

technical field [0001] The invention relates to a fly ash flotation separation device for producing activated carbon by using fly ash, more specifically, the invention relates to a fly ash flotation separation device with a physical separation device. Background technique [0002] Fly ash is one of the largest industrial wastes in my country, and the annual slag discharge in China has reached 30 million tons at this stage. With the development of the power industry, the discharge of fly ash from coal-fired power plants is increasing year by year. Fly ash contains a large amount of unburned carbon particles, which can be used as a raw material for the manufacture of activated carbon after flotation. [0003] 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. There are multi-section bubbling plates inside the cylinder. Multi-point swirl devices and multi-point tail ash ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/14
Inventor 许闽清
Owner FUJIAN LONGYAN LONGNENG FRYASH COMPREHENSIVE UTILIZATION
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