Greenhouse-heat collector-type solar sludge drying system and method

A solar drying and heat collector technology, applied in dewatering/drying/concentrating sludge treatment, energy and wastewater treatment, etc., can solve the problems of large temperature difference between day and night, slow drying speed, leakage of heat transfer oil, etc., to achieve low operating costs, Simple operation and obvious energy saving effect

Inactive Publication Date: 2012-03-21
JIANGSU LONG LEAPING ENG DESIGN +2
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Problems solved by technology

However, only relying on the greenhouse to absorb solar energy, the temperature difference between day and night is large, and the drying speed is slow
[0006] The authorized publication number is CN 101216243A patent "Using Solar Energy Drying Sludge System". This system is a collector ...

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  • Greenhouse-heat collector-type solar sludge drying system and method
  • Greenhouse-heat collector-type solar sludge drying system and method
  • Greenhouse-heat collector-type solar sludge drying system and method

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Embodiment Construction

[0027] The present invention will be described in detail below with reference to the accompanying drawings. The greenhouse-heat collector type solar drying sludge system and method of the present invention are mainly composed of solar greenhouse 2, solar air heat collector 1, mud turning equipment 5, ventilation equipment, heat storage layer 8 and pipeline fan 3, etc. .

[0028] Such as figure 1 As shown, the side of the greenhouse is trapezoidal, the inclination angle of the sunny side is 32° (Nanjing area), and the azimuth angle is 10° south by west. Strength thin-walled steel as a load-bearing structure. The solar heat collector adopts a solar flat air heat collector, the arrays are combined and connected in parallel, and the hot air is passed into the greenhouse by using the pipeline fan 3. In order to reduce the floor area, the solar heat collector is placed on the north side of the flat roof of the greenhouse, and its installation direction is in the same direction as ...

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Abstract

The invention relates to a greenhouse-heat collector-type solar sludge drying system and method. The system comprises a feed bin (11), a solar greenhouse (2), a solar air collector (1), a duct fan (3), ventilation equipment and a three-way pipe, wherein a first end of the three-way pipe is communicated with outside atmospheric air through a first valve (14), a second end of the three-way pipe is communicated with the solar greenhouse (2) through a second valve (15), and a third end of the three-way pipe is communicated with the hot air inlet of the solar air collector (1); the hot air outlet of the solar air collector (1) is communicated with the hot air inlet of the solar greenhouse through the duct fan (3); a heat storage layer is laid on the bottom surface of the solar greenhouse; and a spreader and sludge turning equipment are also arranged in the solar greenhouse. The greenhouse-heat collector-type solar sludge drying system has the advantages of low operating cost, zero discharge, good technical effect and capability of industrial automated operation, thus playing a positive role in supporting reduction and resource utilization of sludge.

Description

technical field [0001] The invention relates to a greenhouse-heat collector type solar drying sludge system and method, and belongs to the technical field of sludge drying and disposal. Background technique [0002] At present, my country has nearly a thousand waterworks and sewage treatment plants that have been built, are under construction, and are planned to be built. These water plants will produce a large amount of sludge during their operation, and their scientific treatment and utilization have become an urgent problem to be solved. The key to resource utilization of sludge is firstly to remove the water inside the sludge and realize the reduction at the same time. After the sludge is dried, its negative characteristics such as odor, pathogens, viscosity, and instability are significantly improved, and it can be used for landfill, incineration, composting, and preparation of building materials. Since the 1990s, the use of dehydration and drying technology to treat s...

Claims

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Application Information

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IPC IPC(8): C02F11/12
CPCY02W10/37
Inventor 潘龙耿飞张银丰傅大放朱暗强沈勇林王宙马振杰
Owner JIANGSU LONG LEAPING ENG DESIGN
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