Method and device for drying sludge of solar chimney
A solar chimney and sludge drying technology, which is applied to solar thermal devices, solar thermal energy, solar thermal power generation, etc., can solve the problems of low drying efficiency and difficult collection of odor, and achieve the effect of saving fossil fuels and high efficiency
Inactive Publication Date: 2011-07-20
SOUTH CHINA UNIV OF TECH
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Problems solved by technology
Solar drying mainly uses greenhouses to heat sludge, which uses natural energy and has low cost, but the odor is difficult to collect and the drying efficiency is low
Method used
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[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples, but the protection scope of the present invention is not limited to the scope described in the embodiments.
[0022] Such as figure 1 As shown, the solar chimney sludge drying device includes a solar heat collection shed 1, a solar chimney 2, an inlet pipe 3, an axial flow fan 4, a spiral sludge dryer 5, an exhaust pipe 6, a bearing 7 and a gasket 8. The solar heat collection shed 1 is placed on the ground, and comprises a light-transmitting plate 1-1, a heat-collecting plate 1-2 and a heat storage tank 1-3, and is surrounded by a light-transmitting plate 1-1 and a heat-collecting plate 1-2 to form an airtight space. cavity, the light-transmitting plate is made of light-transmitting glass, and the surface of the heat-collecting plate is coated with black chrome (produced by Hangzhou Huangjia Solar Equipment Co., Ltd.) to enhance the heat absorption...
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Abstract
The invention discloses a method and device for drying sludge of a solar chimney. The device comprises a solar heat-collecting shed, a solar chimney, an axial-flow fan and a spiral sludge dryer. The solar heat-collecting shed is a closed empty chamber formed by enclosing a light-transmitting plate and a heat-collecting plate; the solar heat-collecting shed is communicated with the solar chimney; the solar chimney comprises a chimney pipe and a fixed bracket; the chimney pipe uses a taper structure in which the lower part is bigger than the upper part; the solar chimney is communicated with the axial-flow fan through the inlet pipe; the sealing housing of the axial-flow fan is internally provided with a rotation shaft and a blade; the rotation shaft is a hollow shaft extended into the housing of the sludge dryer. In the method, the solar energy is collected by the hothouse temperature technology of the solar heat-collecting shed so that the air flows in the solar chimney; the power of the flowing air forms rotation power in the axial-flow fan; and then the rotation shaft drives the spiral sludge dryer to dry the water-containing sludge by using air recuperative heat-transfer technology. The invention makes use of solar energy to dry water-containing sludge, thereby saving energy and power, and having treatment effect of solid wastes.
Description
technical field [0001] The invention relates to the fields of solar energy utilization and sludge drying, in particular to a solar chimney sludge drying method and device. Background technique [0002] The use of fossil fuels has damaged the environment and ecology, and its limited storage is also a great challenge for human beings. Solar thermal energy is an inexhaustible renewable energy source. Its exploration and utilization are of great significance to the sustainable development of human society and nature. It can overcome the current unsustainable contradiction of fuel supply and will become a new trend in the development of the world economy. The growth point has a broad market prospect. [0003] Sludge is a by-product of domestic and industrial sewage treatment. This by-product is rich in microorganisms, pathogens, viruses, etc., and has strong pollution properties. If it is not disposed of properly, it will form a wide spread of pollution. The purpose of sludge d...
Claims
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IPC IPC(8): C02F11/12F24J2/20F24J2/50F24J2/48F24J2/34F24S10/50
CPCY02E10/44Y02W10/37
Inventor 楼波
Owner SOUTH CHINA UNIV OF TECH