Flying ash desalination and water washing device

A technology for desalinated water and fly ash, applied in cement production, etc., can solve problems such as inadequate supervision, high cost of fly ash treatment, and inability to safely dispose of fly ash, and achieve the effect of preventing blockage

Active Publication Date: 2016-07-13
HUZHOU SENNUO MEMBRANE TECH ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the cost of fly ash disposal is high
On the other hand, due to the unregulated market, inadequate supervision and vicious competition, the "fly ash" is in a state of "flying randomly".
If fly ash cannot be disposed of safely, it will be a great hidden danger to the environment

Method used

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  • Flying ash desalination and water washing device

Examples

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Embodiment Construction

[0016] Examples, see attached figure 1 , a fly ash desalination washing device, comprising a feed pipeline 1, one end of the feed pipeline is connected to a storage 2, and the other end of the feed pipeline is connected to a feeding device 3, and the feeding device mixes a mixture of fly ash and water (and The solid-to-liquid ratio of fly ash and water is 1:4) into the filter cloth 5 of the vacuum belt conveyor 4; the vacuum belt conveyor is provided with a vacuum box 6, and the conveyor belt of the vacuum belt conveyor is a filter cloth, and the filter cloth covers On the vacuum box, the filter cloth is attached with a microporous membrane, the fly ash on the filter cloth is mixed with water, and the filter cloth is continuously running, and the washed fly ash solution is sucked by the vacuum pump of the vacuum suction device. The aqueous solution in the vacuum suction device is pumped out and sent to the drain tank to achieve the effect of solid-liquid separation. At the sam...

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Abstract

The invention relates to a flying ash desalination and water washing device. One end of a feeding pipeline is connected with a warehouse; the other end of the feeding pipeline is connected with a feeding device; the feeding device feeds flying ash and water onto filter cloth of a vacuum belt conveyor according to a solid-to-liquid ratio being 1:4 in a mixed way; a vacuum box is arranged in the vacuum belt conveyor; a conveying belt of the vacuum belt conveyor is filter cloth; the filter cloth covers the vacuum box; a microporous membrane is used on the filter cloth for membrane adsorption; a filter cloth tensioning device, a filter cloth deviation rectifying device and an ultrasonic cleaning device are also arranged in the vacuum belt conveyor; a vacuum suction device comprises a vacuum pump and five groups of liquid discharge tanks; the five groups of liquid discharge tanks are connected with the vacuum pump and are sequentially distributed from left to right; the vacuum box is in a vacuum state through the vacuum pump; the atomizing type mixing is performed through the liquid discharge tanks; in addition, a chaotropic agent with 1 mass percent of flying ash is added, so that mixtures on the filter cloth are uniformly mixed; a water solution in a flying ash solution subjected to water washing is sucked away through suction, so that the solid-liquid separation effect is achieved; ash water is separated into a salt-containing solution and wet ash with the water content being about 30 percent.

Description

Technical field: [0001] The invention relates to the field of fly ash processing equipment, and more specifically relates to a fly ash desalination washing device. Background technique: [0002] Fly ash is the residue of waste incineration, and 90% of the carcinogen "dioxin" produced by waste incineration is in the fly ash. Improper handling of fly ash that has not been solidified, and a large amount of heavy metals and dioxins in it will cause serious pollution accidents and endanger the health of residents. At present, only a few cities across the country are dealing with waste incineration fly ash. On the one hand, the cost of fly ash disposal is very high. On the other hand, due to the unregulated market, insufficient supervision and vicious competition, the "fly ash" is in a state of "flying randomly". If fly ash cannot be safely disposed of, it will be a great hidden danger to the environment. [0003] Because fly ash contains a large amount of chloride ions, chlor...

Claims

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Application Information

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IPC IPC(8): C04B7/36C04B7/38C04B7/26
CPCC04B7/26C04B7/365C04B7/38Y02P40/10
Inventor 王中华刘宁生
Owner HUZHOU SENNUO MEMBRANE TECH ENG
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