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Supercritical sludge treatment system and treatment method

A sludge treatment and supercritical technology, applied in the direction of combustion method, oxidation treatment of sludge, lighting and heating equipment, etc., can solve the problems of insufficient solid residue, excessive combustion, low furnace temperature, etc., to improve the efficiency of sludge treatment , increase calorific value, increase the effect of processing capacity

Inactive Publication Date: 2016-08-17
ENN SCI & TECH DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the one hand, due to the low calorific value and high moisture content of sludge, this incineration method results in low furnace temperature, insufficient combustion and less recoverable heat, so it is usually mixed with fuels with higher calorific value such as coal and petroleum coke. Co-combustion, there will be more solid residues of insufficient combustion after combustion, and the exhaust gas contains a large amount of sulfur oxides, nitrogen oxides and dioxins, which have adverse effects on the atmosphere and human health.
There are existing supercritical sludge treatment methods, but there are also situations where the calorific value of sludge is insufficient. At this time, the general supercritical sludge treatment system will be equipped with methane feeding equipment

Method used

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  • Supercritical sludge treatment system and treatment method
  • Supercritical sludge treatment system and treatment method

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Embodiment 1

[0064] This case uses carbon-containing organic matter, which contains a large amount of protein, fat, mineral oil, detergent, humus, bacteria and bacterial metabolites at all levels, including parasites or eggs, microorganisms, some industrial high Residues of molecular materials, waste paint, residues of various organic solvents, coke of organic matter or incomplete decomposition products ensure that carbon-containing organic powders can have a high calorific value.

[0065] The dry carbon-containing organics are transported by vehicles and unloaded in storage bin 1 for collection and storage. The organic mass is ground into particles of specified mesh size. The carbon-containing organic powder enters the rotary separator 4 for separation, and the non-conforming specifications and impurities are separated for centralized collection. The separated carbon-containing organic powder is transported to the buffer tank 6 through the transport device 5 . The carbon-containing orga...

Embodiment 2

[0067] The dry carbon-containing organics are transported by vehicles and unloaded in storage bin 1 for collection and storage. The organic mass is ground into particles of specified mesh size. The carbon-containing organic powder enters the rotary separator 4 for separation, and the non-conforming specifications and impurities are separated for centralized collection. The separated carbon-containing organic powder is transported to the buffer tank 6 through the conveying device 5 , and then transported from the buffer tank 6 to the powder pump 7 . The carbonaceous organic powder is sprayed directly into the reactor 8 through a nozzle. The powder pump 7 continuously pressurizes the carbon-containing organic powder in the buffer tank 6 to the nozzle, and continuously injects the carbon-containing organic powder into the reactor 8 through the nozzle. In this way, the carbon-containing organic matter powder is continuously injected into the reactor 8, thereby increasing the ove...

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Abstract

The invention relates to a supercritical sludge treatment system, comprising a supercritical sludge treatment device as well as a sludge conveying device and a carbonaceous organic material adding device respectively communicated with the supercritical sludge treatment device, wherein the carbonaceous organic material adding device comprises a pressure device communicated with the supercritical sludge treatment device and a buffer pot connected with the pressure device. The aim of the supercritical sludge treatment system is that when the caloric value of sludge slurry is low in supercritical reaction, the caloric value of reactant burning is improved by a method of supplementing powdered carbonaceous organic materials to the sludge slurry, thereby increasing the sludge treatment capacity and improving the sludge treatment efficiency of a supercritical reactor. The invention also relates to a supercritical sludge treatment method.

Description

technical field [0001] The invention relates to a supercritical sludge treatment system and a treatment method. Background technique [0002] In recent years, the production of municipal sludge in my country has been increasing. According to the "Notice on the Construction and Operation of National Urban Sewage Treatment Facilities in the Fourth Quarter of 2010", by the end of 2010, my country's urban sewage treatment volume reached 34.3 billion cubic meters. The amount of sludge produced in the sewage treatment process has also increased significantly. In 2010, the national sludge production volume was about 21.99 million tons, and 60,200 tons of sludge were produced every day. According to the current development speed, by the end of 2015, the annual output of sludge in my country will reach at least 26.15 million tons, and the daily output of sludge will be about 72,000 tons. The reduction treatment and rational utilization of sludge are already very serious problems. ...

Claims

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Application Information

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IPC IPC(8): C02F11/06F23G7/00
CPCY02W10/40C02F11/06F23G7/00F23G2201/10F23G2207/30F23G2209/12
Inventor 邢浩
Owner ENN SCI & TECH DEV
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