Solar sludge constant-temperature drying harmless treatment device and method

Abstract

The invention relates to the technical field of sludge drying, in particular to a solar sludge constant-temperature drying harmless treatment device and a solar sludge constant-temperature drying harmless treatment method. The method comprises the following steps: (1) enabling wet sludge to pass through, and drying the wet sludge by a drying mechanism by utilizing solar heat to obtain dried sludge; 2, crushing the dried sludge by using a grinding mechanism to obtain crushed sludge, and throwing the crushed sludge onto a separation mechanism by using a throwing mechanism; and 3, allowing a vibration mechanism to drive the separation mechanism to vibrate up and down to separatemetal particles in the crushed sludge. By arranging the drying mechanism, wet sludge is dried by utilizing solar energy, and metal particles in the crushed sludge discharged by the grinding mechanism are separated through the throwing mechanism and the vibrating mechanism, so that separation, collection and reutilization of the metal particles in the sludge are realized, the metal particles in the sludge are removed, the weight of the sludge is reduced, and and the sludge incineration effect is improved.

Description

technical field [0001] The invention relates to the technical field of sludge drying, in particular to a solar sludge constant temperature drying and harmless treatment device and method. Background technique [0002] Solar drying is actually a process in which the moisture in the sludge is transferred to the air in a relatively closed space at a relatively low temperature using the principle of a greenhouse. It mainly uses solar energy during the day to increase the temperature of the drying air, supplemented by other means, such as radiant heating, floor heating, hot air purge, and increased ventilation, to effectively increase the temperature of the sludge and increase the water content of the sludge surface. The difference in vapor pressure between the steam and the drying air to achieve sludge drying. [0003] In the invention case of the solar sludge constant temperature drying and harmless treatment device and method disclosed in the prior art, the Chinese patent app...

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Problems solved by technology

[0006] The purpose of the present invention is to provide solar sludge constant temperature drying and harmless treatment device and method, to solve the problem in the above-mentioned background technology that the sludge produced by mechanical processing is rich in a large number of metal particles, which are usually taken directly after solar drying. I

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