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Method and apparatus for reclaiming water soluble fusing waste

A molten and water-soluble technology, which is applied in the field of effective recovery of water-soluble molten waste, can solve the problem of environmental pollution caused by discharged waste liquid, and achieve the effect of avoiding strong corrosion

Inactive Publication Date: 2005-06-01
INST OF MECHANICS - CHINESE ACAD OF SCI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the current chemical plant discharges waste liquid to pollute the environment, and while solving the pollution problem, it also recovers useful raw materials in the waste liquid

Method used

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  • Method and apparatus for reclaiming water soluble fusing waste

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Embodiment 1

[0014] Recovery of sodium carbonate: the by-product of the production of cyclohexanone - the sodium salt of organic acid is incinerated and the molten sodium carbonate waste falls into the bottom of the furnace. When the molten sodium carbonate waste flows downward from the inlet of the water tank to the diversion barrel, the molten sodium carbonate waste is crushed by a high-pressure air-water combined jet, and the crushed molten waste alkali falls into the water in the lower part of the diversion barrel It is sent to solid-liquid separation equipment (such as scraper conveyor) through the diversion barrel. When the solution reaches saturation, the crushed sodium carbonate is no longer soluble in water and settles to the bottom of the solid-liquid separation equipment. Sodium carbonate granules are fished out through this equipment, and recovered granules of sodium carbonate can be obtained after drying.

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Abstract

Below outflow opening of molten waste, high pressure air-water mixture spray gun is installed to smash the effluent, the smashed particles perform heat exchange with water to cool, the cooled particles are fed via the guide barrel to solid-liquid separator for separation, and separated solid matter is dried and packed to obtain final recovered particle matter.

Description

technical field [0001] The invention relates to a method and a device for recycling waste materials flowing out of chemical plants, in particular to a method and device for effectively recycling water-soluble molten waste materials. Background technique [0002] At present, part of the waste liquid discharged by chemical plants in the production process is incinerated to reduce environmental pollution. After incineration, the organic matter disappears, and the inorganic matter (such as alkali) remains, which is usually discharged directly or after being neutralized with acid in general chemical plants. For example: after incineration of the by-product of the production of cyclohexanone - organic acid sodium salt, part of the produced sodium carbonate is discharged into the flue along with the flue gas, and is recovered by sedimentation and electrostatic adsorption. However, the molten sodium carbonate falling into the bottom of the furnace can only be dissolved in water and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00F23G5/00
Inventor 单希壮陈立新
Owner INST OF MECHANICS - CHINESE ACAD OF SCI
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