Sludge resource utilization device and method thereof

A technology for resource utilization and sludge, applied in chemical instruments and methods, combustion methods, combined devices, etc., can solve the problems of lack of flue gas denitrification technology, and achieve the effects of saving coal consumption, high efficiency and wide application range.

Active Publication Date: 2018-04-06
SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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Problems solved by technology

[0004] In view of the lack of domestic sludge resource disposal and industrial boiler or kiln flue gas denitrification

Method used

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  • Sludge resource utilization device and method thereof
  • Sludge resource utilization device and method thereof

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Embodiment Construction

[0033] The present invention will be described in further detail below.

[0034] A sludge resource utilization device, including a sludge storage and transportation unit 1, a pyrolysis reaction unit 2, a dust removal unit 3, a pyrolysis gas injection unit 4, an industrial boiler 7, a sludge coke collection and addition unit 5, and an automatic control unit Unit 6, the automatic control unit 6 controls the above-mentioned units to work. In addition to the industrial boiler 7, the device and method of the present application are also suitable for industrial kilns, and here only the industrial boiler 7 is used as a specific example. The sludge storage and delivery unit 1, the pyrolysis reaction unit 2, the dust removal unit 3, the pyrolysis gas injection unit 4, and the industrial boiler 7 are connected in sequence, and a sludge delivery pipe is provided between the sludge storage and delivery unit 1 and the pyrolysis reaction unit 2, A first pyrolysis gas delivery pipe is provi...

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Abstract

The invention relates to a sludge resource utilization device and method. The sludge resource utilization device comprises a sludge storage and delivery unit, a pyrolysis reaction unit, a dust removalunit, a pyrolysis gas injection unit, an industrial boiler or an industrial kiln furnace, a sludge coke collection and feeding unit, and an automatic control unit, wherein the automatic control unitcontrols the above-mentioned units to work. As for the device and method, according to the characteristics of high volatile matter and nitrogen content in sludge, the high-temperature flue gas produced in the industrial boiler or kiln furnace is used as a heat source and carrier gas, the sludge is pyrolyzed at a certain temperature to produce pyrolysis gas and sludge coke, subsequently, the flue gas mixed with the pyrolysis gas is reintroduced into the combustion zone of the industrial boiler or kiln furnace, the pyrolysis gas is used as a reburning fuel and a gas denitration agent to remove the NOx in the flue gas while achieving energy utilization, and the produced sludge coke can be used as a reburning fuel and a solid denitrition agent for flue gas denitrition of the industrial boileror kiln furnace to play a role in removing the NOx while replacing part of coal.

Description

technical field [0001] The invention relates to the field of solid waste treatment, in particular to a sludge resource utilization device and a method thereof. Background technique [0002] With the increase of domestic sewage treatment rate in our country year by year, the amount of sludge produced by urban sewage plants is increasing day by day. According to statistics, at present, 30-40 million tons of municipal sludge (water content 80%) is produced in my country every year. Studies have shown that urban sludge has complex components, including heavy metals, organic matter, bacteria, viruses and other toxic and harmful substances to the human body. If not properly disposed of, it will pollute the ecological environment and seriously threaten human health. Therefore, how to dispose of sludge economically, efficiently and safely is another important environmental problem facing our country. At present, the common sludge disposal methods at home and abroad mainly include ...

Claims

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Application Information

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IPC IPC(8): C02F11/10C10B53/00C10B49/04B01D50/00B01D53/56B01D53/74F23G7/00
CPCB01D53/56B01D53/74F23G7/001C10B49/04C10B53/00C02F11/10C02F2303/06B01D2258/0283B01D50/20Y02W10/40
Inventor 方平岑超平唐子君陈雄波黄建航
Owner SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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