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Apparatus and method for pyrolyzing sludge by utilizing solar energy

A solar thermal and sludge technology, which is applied in the direction of solar thermal devices, solar thermal energy, solar thermal power generation, etc., can solve problems such as immaturity, and achieve the effects of improving utilization rate, high energy utilization rate, and safe and reliable use

Pending Publication Date: 2017-04-26
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solar water heaters, medium-temperature thermal power generation, and photovoltaic power generation have all entered commercial applications, but they are not mature enough for high-temperature thermochemical conversion (hydrogen or synthesis gas)

Method used

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  • Apparatus and method for pyrolyzing sludge by utilizing solar energy

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Embodiment 1

[0031] A device for pyrolyzing sludge using solar energy, comprising an illumination type sludge drying device, an automatic concentrating system, a rotary reaction device with an inlet end and an exhaust end, and a tail gas utilization device. The high temperature formed after light focusing causes the sludge in the rotary reaction device to undergo a pyrolysis reaction. The tail gas utilization device is arranged between the exhaust end of the rotary reaction device and the illumination sludge drying device. In this way, the waste heat of the pyrolysis reaction gas discharged from the rotary reaction device is used to heat the sludge in the sludge drying device.

[0032] The illumination type sludge drying device comprises a drying chamber 5 and a water collection tank 6 connected to the drying chamber 5. The drying chamber 5 is a cylindrical stainless steel box, and its top cover is glass designed in an arc shape. A groove is provided at the junction of the cover and the bo...

Embodiment 2

[0037] A method for utilizing solar energy to pyrolyze sludge based on the device, comprising the steps of:

[0038]1) Put the sludge into the illuminated sludge drying device, use the waste heat generated by the pyrolysis reaction generated by the too far light and the rotary reaction device to heat and dry the sludge in the sludge drying device, so that the sludge in the sludge Most of the water evaporates out;

[0039] 2) Send the dried sludge into the rotary reaction device, and use the sunlight concentrated by the automatic concentrating system to form a high temperature environment required for pyrolysis reaction in the rotary reaction device, so that the sludge can undergo pyrolysis reaction ;

[0040] 3) During the reaction, the rotary reaction device is selected, and nitrogen is introduced into the rotary reaction device at the same time to form an oxygen-free environment and bring out the pyrolysis gas;

[0041] 4) The gas generated by pyrolysis is conducted throug...

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Abstract

The invention discloses an apparatus for pyrolyzing sludge by utilizing solar energy. The apparatus comprises an illumination type sludge drying apparatus, an automatic light focusing system, a rotary reaction apparatus provided with a gas inlet end and a gas outlet end, and a tail gas utilization apparatus, wherein the automatic light focusing system enables sludge in the rotary reaction apparatus to generate a pyrolytic reaction by a high temperature formed after sunlight is focused; the tail gas utilization apparatus is arranged between the gas outlet end of the rotary reaction apparatus and the illumination type sludge drying apparatus; and residual heat of pyrolytic reaction generated gas discharged by the rotary reaction apparatus is used for heating the sludge in the sludge drying apparatus in a heat conduction way. The invention furthermore discloses a method for pyrolyzing the sludge by utilizing the solar energy. The method and the apparatus have the advantages that the use is safe and reliable and the resources are fully utilized, can be used for treating the sludge, and achieve effective utilization of the sludge.

Description

technical field [0001] The invention relates to the field of sludge treatment, in particular to a device and method for pyrolyzing sludge using solar energy. Background technique [0002] With the advancement of my country's modernization, people have produced a lot of sewage in their daily life and industrial activities. According to statistics, in 2005, China's cities and towns produced more than 40 billion tons of sewage, and it is also growing at a rate of 10% per year. Now the sewage treatment rate in cities and towns across the country is getting higher and higher, and it is moving towards benign and sustainable development. However, the sludge produced with sewage treatment seems to have received insufficient attention. If such a large amount of sludge is not properly disposed of, it will definitely cause a series of environmental, economic and social problems. [0003] Sludge is an available resource, and the organic matter it contains is an effective bioenergy sou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/10C02F11/12C10B53/00C10B23/00F24J2/08F28D15/02F24S23/30
CPCF24S23/30F28D15/02C10B23/00C10B53/00C02F11/10C02F11/12Y02E10/40Y02P20/129Y02W10/37Y02W10/40Y02P20/133
Inventor 余昭胜代民权方诗雯林延林有胜陈琳徐佳晨陈志杰范云龙马晓茜
Owner SOUTH CHINA UNIV OF TECH
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