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Method for recovering and treating coking phenol-cyanogen wastewater by adopting Isa furnace

A technology of recovery treatment and Isa furnace, which is applied in the field of coking phenol cyanide wastewater treatment by Isa furnace, can solve the problems of boiler operators and environmental pollution, difficult treatment of polluted area, incomplete combustion, etc., and is easy to popularize and decompose Thorough, cost-saving results

Inactive Publication Date: 2015-07-29
LIANGSHAN MINING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another key disadvantage of using the incineration method to treat phenolic sewage is that once the operation is careless, the furnace temperature will drop, which will often cause incomplete combustion and easily cause secondary pollution.
However, due to the high concentration of volatile phenol and cyanide in the phenolic sewage, it will seriously pollute the boiler operators and the environment.
Moreover, the load of small boilers is generally unstable. When the boiler load is low, when the furnace temperature is low and cannot reach the decomposition temperature of phenol, it will drift with the flue gas, causing secondary pollution, and the pollution area is larger and more difficult to deal with.

Method used

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  • Method for recovering and treating coking phenol-cyanogen wastewater by adopting Isa furnace
  • Method for recovering and treating coking phenol-cyanogen wastewater by adopting Isa furnace

Examples

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Embodiment Construction

[0058] The present invention will be described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.

[0059] a. Pretreatment: Collect the produced phenol cyanide wastewater in the phenol pool for pretreatment;

[0060] When 25-30 tons of phenol cyanide wastewater is produced per month, the phenol cyanide wastewater is collected by a phenol pool with a length of 3m, a width of 1.5m, and a height of 2.5m for pretreatment

[0061] b. Granulation water replenishment: when the material is granulated, according to the original water content ratio of the material, the phenol cyanide wastewater is used to replenish the water of the material;

[0062] c. Melting: The phenol cyanide wastewater is attached to the material particles, enters the Isa furnace from bottom to top with the feeding system, passes through the high temperature of the melting pool greater than or equal to 1200 degrees Celsius, and the phenol cyanide was...

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Abstract

The invention belongs to the field of coking phenol-cyanogen wastewater treatment and particularly relates to a method for recovering and treating coking phenol-cyanogen wastewater by adopting an Isa furnace. In a material granulation step of a mineral smelting process of the Isa furnace, the phenol-cyanogen wastewater is used for performing water supplement on materials and enters the Isa furnace together with the materials to be smelted, phenol water is completely decomposed into water and CO2 by utilizing high temperature greater than 1,200 DEG C, and heat of pollutants such as phenol, cyanogen and the like is used for smelting, so that wastes are turned into wealth, the health of workers is maintained, and the production safety is improved. The method is reasonable, relatively low in cost and easy to popularize.

Description

technical field [0001] The invention belongs to the field of coking phenol-cyanide wastewater treatment, and in particular relates to a method for recovering and treating coking phenol-cyanide wastewater by adopting an Isa furnace. Background technique [0002] During the coking production process, a large amount of waste water containing toxic and harmful substances such as phenol, cyanide, oil, ammonia nitrogen, etc. will be discharged. The phenol cyanide wastewater mainly comes from the process of coking, gas purification and refining of chemical products, and the main source is the residual ammonia produced in the ammonia distillation process. The remaining ammonia water is mainly composed of three parts: the wet water on the surface of the furnace coal, the combined water produced by the dry distillation of the furnace coal, and the oily process wastewater added to the suction gas pipeline and the gas collector circulating oxygen water pump. The remaining ammonia water...

Claims

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Application Information

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IPC IPC(8): C02F1/02C02F9/10
Inventor 许可李云丰驰李汝云朱海东
Owner LIANGSHAN MINING CO LTD
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