Sludge drying and conveying device

Abstract

The invention discloses a sludge drying conveying device, which comprises a conveying channel, a chain hoist is arranged inside the conveying channel, a waste gas discharge outlet is arranged at the upper end of the conveying channel, and a heating and drying generator is arranged at the lower part of the conveying channel; There is a screw feeder on the left side of the upper end of the machine, and a discharge machine on the upper right side of the chain hoist; the conveying channel is composed of an upper heat preservation section, a middle drying section and a lower refractory section, and the exhaust gas discharge outlet is connected with the upper end heat preservation section. The lower part of the lower refractory section extends out of the heating chamber, and the heating and drying generator is arranged in the heating chamber; the chain hoist includes an upper rotating shaft and a lower rotating shaft. The invention can dry the sludge during the sludge transportation process, and has simple structure, high equipment efficiency, small volume, small equipment footprint, and easy movement of the equipment; It is carried out in the conveying channel, which is not easy to generate dust.

Description

Technical field: [0001] The invention relates to the technical field of environmental protection equipment, in particular to a sludge drying conveying device. Background technique: [0002] In the process of urbanization development, with the improvement and deepening of sewage treatment rate and treatment degree, the sludge production has greatly increased. In sludge disposal, organic sludge fuelization should be the main research and development direction. This is the current world organic sludge treatment. Treatment trends. The organic matter in the sludge is about 50%, and the calorific value of the dry mixed sludge is 24-29MJ / kg. Theoretically, the calorific value held by itself can only be burned when the water content is lower than 70%. Moisture is a better fuel and produces ample heat. At present, many regions in China supply activated sludge with high water content to power plants and coal-fired hybrid power generation, but this requires drying treatment of sludge...

AI Technical Summary

Problems solved by technology

At present, many regions in China supply activated sludge with high water content to power plants and coal-fired hybrid power generation, but this requires drying treatment of sludge, but due to the characteristics of high water content, high viscosity and serious scaling of sludge, The efficiency of the equipment is low, because the volume is huge, and the equipment is heavy and difficult to move; the process is complicated, the investment is high, and a large amount of water needs to be removed before it can be used as a raw material for treatment, and the sludge dust that is inevitably generated during the drying process is easy to explode

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