A high-concentration organic waste liquid incineration equipment and process

Abstract

The invention relates to the technical field of liquid waste disposal, in particular to a high concentration organic liquid waste incineration process and equipment using the incineration process. The equipment comprises a liquid waste tank, an incinerator, a waste heat recovery device, a desulfurization and denitrification device, a dust remover and a chimney. A preprocessing device and a gas-solid separator are arranged in front of the incinerator. A delivery pump used for pumping liquid in the liquid waste tank to the preprocessing device is also arranged in front of the incinerator. The incinerator is a D-type furnace which is provided with an atomization combustor. The high concentration organic liquid waste incineration process and equipment not only can substantially reduce harmful gases, but also can effectively separate salt from liquid waste so as to meet emission requirements. The high concentration organic liquid waste incineration process and equipment are suitable for environment-friendly disposal of high concentration organic liquid waste.

Description

technical field [0001] This patent relates to the technical field of waste liquid treatment, in particular to a process for incinerating high-concentration organic waste liquid and equipment for applying the incineration process. Background technique [0002] With the development of the economy, more and more high-concentration organic waste liquids are discharged from industries such as textiles, leather, pharmaceuticals, and chemical fertilizers. If they are discharged without treatment, they will seriously pollute the environment. The components of the waste liquid are usually: salt in a saturated state, some organic matter, and the rest is water. Although the traditional treatment technology can effectively remove COD, N, P and other pollutants in the waste liquid, it not only consumes more energy and resources during the treatment process, but also produces a large amount of residual sludge. It can be seen that this waste liquid treatment method has the disadvantages o...

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Problems solved by technology

[0005] 1. During the process of the atomized waste liquid flowing through the burner, incinerator and waste heat boiler in sequence, the precipitated inorganic salt powder will adhere to the furnace wall and flue wall, and it will continue to accumulate, so that the load on the bearing steel structure will continue. increase, the diameter of the flue gradually becomes smaller; what is more serious is that inorganic salts adhere to the heating surface of the waste heat boiler, which will affect the heat transfer effect, and even affect the safe operation of the equipment.

[0006] The steam purging device is installed behind the waste heat boiler, which can regularly remove the inorganic salt attached to the waste heat boiler. The salt in the natural gas burner and incinerator at the front cannot be cleaned by the purging device, and the fouled parts can only be replaced regularly, and the maintenance cost of the equipment is relatively high

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