Waste incineration pre-treatment system

Abstract

The invention discloses a pretreatment system for waste incineration, which includes a pressure vessel, a sealing device, a temperature raising and pressure raising device, a pressure reducing device, a discharge device, a control system and a monitoring system; the pressure vessel is used to store materials; the sealing device is set at the pressure The container is used to seal it; the temperature raising and boosting device is installed in the pressure container to heat and pressurize the inside; the pressure reducing device is installed in the pressure container to reduce the pressure inside; discharge; the control system is used to separately control the sealing device, the temperature raising and boosting device, the pressure reducing device and the discharge device; the monitoring system includes a plurality of monitoring components to monitor the temperature, pressure, displacement or location for the control system to collect and control accordingly. The invention removes the moisture and salt in the domestic garbage to the greatest extent, and reduces the odor and the amount of sewage produced by long-term stacking and fermentation while increasing the combustion calorific value of the garbage.

Description

technical field [0001] The invention relates to the technical field of waste treatment, in particular to a pre-treatment system for waste incineration. Background technique [0002] Municipal solid waste is difficult to incinerate directly because of its high water content and salt content, resulting in a low combustion calorific value. The traditional pre-treatment of waste incineration generally uses waste to be piled up for a long time, and after part of the moisture in the waste is drained, it is directly sent to the incinerator for incineration. Garbage needs to be piled up for a long time and requires a lot of space, thereby increasing the floor area of ​​the factory building and increasing the construction cost of the factory building. Moreover, because the garbage still contains a large amount of water, the combustion calorific value of the garbage is low, and a large amount of kerosene and other combustion accelerants need to be added during combustion to ensure be...

AI Technical Summary

Problems solved by technology

Garbage needs to be piled up for a long time and requires a lot of space, which increases the floor area of ​​the factory building and increases the construction cost of the factory building

Moreover, because the garbage still contains a large amount of water, the combustion calorific value of the garbage is low. When burning, it is necessary to add a large amount of kerosene and other combustion aids to ensure that the garbage burns better, thus greatly increasing the cost of garbage incineration.

In addition, due to the high salt content of raw waste and the low calorific value of combustion, it cannot be fully burned, resulting in a low temperature in the furnace.

Due to insufficient combustion, a large amount of primary carcinogens such as dioxins that are difficult to eliminate will be produced, which will endanger the health of the staff and be discharged into the surrounding steam, seriously polluting the surrounding environment

In addition, because the garbage needs to be piled up for a long time to ferment and drain, a large amount of odor and sewage will be generated, and to remove the odor and sewage requires a large number of deodorization and sewage treatment equipment, which greatly increases the investment cost

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