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Sludge harmless treatment system based on high-temperature gasification

A technology of harmless treatment and sludge drying, which is applied in dewatering/drying/concentrating sludge treatment, gasification process, pyrolysis treatment of sludge, etc. It can solve the problems of pollution and low energy consumption, and achieve energy consumption. Low, high operating stability, the effect of solving dioxin and heavy metal pollution

Pending Publication Date: 2020-07-31
HUANENG CLEAN ENERGY RES INST
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Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a sludge harmless treatment system based on high-temperature gasification, which can effectively solve the problem of dioxin and heavy metal pollution in the sludge treatment process, and realize Resourceful utilization of sludge, while the system has a long service life, high operational stability, and low energy consumption

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  • Sludge harmless treatment system based on high-temperature gasification

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Embodiment Construction

[0018] The present invention is described in further detail below in conjunction with accompanying drawing:

[0019] refer to figure 1 , The sludge harmless treatment system based on high-temperature gasification according to the present invention includes a wet sludge bin 1, a sludge dryer 3, a coal input pipeline, an oxygen input pipeline, a hot blast stove 13, a coal mill 5, a gas Furnace 7, heat exchanger 8, gas turbine 10, waste heat boiler 11, condenser 12, auxiliary fuel pipeline and air input pipeline; the outlet of wet sludge bin 1 is connected with the sludge inlet of sludge dryer 3, and the sludge The outlet of the slime drying machine 3, the coal input pipeline and the outlet of the hot blast stove 13 are connected with the inlet of the coal mill 5, and the outlet of the coal mill 5 and the oxygen input pipeline are connected with the inlet of the coal gasifier 7, and the coal gasifier The outlet of 7 is connected to the inlet of the gas turbine 10 through the hea...

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Abstract

The invention discloses a sludge harmless treatment system based on high-temperature gasification. The system comprises a wet sludge bin, a sludge drying machine, a coal feeding pipeline, an oxygen feeding pipeline, a hot blast stove, a coal mill, a coal gasifier, a heat exchanger, a gas turbine, a waste heat boiler, a condenser, an auxiliary fuel pipeline and an air input pipeline. The system caneffectively solve the problems of dioxins and heavy metal pollution in the sludge treatment process, achieves resource utilization of sludge, and is long in service lifetime, high in operation stability and low in energy consumption.

Description

technical field [0001] The invention belongs to the field of biomass gasification, and relates to a sludge harmless treatment system based on high-temperature gasification. Background technique [0002] With the development of my country's social economy, the acceleration of urbanization and the improvement of people's living standards, the amount of urban domestic sewage has increased sharply. As an auxiliary product of sewage treatment in sewage treatment plants, sludge is rich in harmful substances such as organic humus, bacterial cells, parasite eggs and heavy metals. It is a potential secondary pollution source and causes great environmental pollution. With the rapid increase of sludge production, people pay more and more attention to sludge disposal. [0003] The overall goal of sludge treatment and disposal is to achieve sludge reduction, harmlessness, recycling and scale. The current treatment methods mainly include land use, sanitary landfill and incineration, whi...

Claims

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Application Information

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IPC IPC(8): C02F11/12C02F11/13C02F11/10C10J3/48C10J3/50C10J3/86C10J3/82C10J3/72
CPCC02F11/10C02F11/12C10J3/48C10J3/50C10J3/72C10J3/82C10J3/86C10J2300/0906C10J2300/0909C10J2300/0936C10J2300/0946C10J2300/0959C10J2300/1687C02F11/13Y02P20/129
Inventor 王鹏杰许世森任永强李小宇陶继业刘刚罗丽珍
Owner HUANENG CLEAN ENERGY RES INST