Sludge treatment system and method

Abstract

The invention relates to a sludge treatment system and method. The system comprises a clinker sintering system, a first main body, a drying machine, a deodorization device and a conveying device, wherein the first main body comprises a first storage bin, a first double-screw feeder, a first power pack, a first sludge pump, a first impurity remover, a first main pipe, a first valve, a second main pipe, a second valve, a first beater, a spray gun, a first gate valve and first slide carriage; the first sliding frame equipment is arranged in the first storage bin; a discharge port of the first storage bin is connected with a feed port of a first double-screw feeder through a first gate valve; wherein the spray gun is embedded in the decomposing furnace and communicated with the interior of thedecomposing furnace, one end of the first main pipe is connected with a discharge port of the first sludge pump, the other end of the first main pipe is connected with a feed port of the spray gun, and the first impurity remover, the first valve and the first beater are all arranged on the first main pipe. According to the invention, sludge is treated and blended into a cement raw material to becalcined together in a clinker sintering system, so that energy waste is avoided and energy conservation is realized; and the investment is low, the return is high, and environmental protection is achieved.

Description

technical field [0001] The invention relates to a sludge treatment system and method. Background technique [0002] With the acceleration of urbanization and the improvement of environmental protection standards, the sewage treatment rate and degree of sewage treatment are also increasing and deepening, and the amount of sludge generated is also greatly increased. How to effectively treat and dispose of it has become an issue. Worldwide social and environmental issues. [0003] From a global perspective, the currently commonly used sludge treatment and disposal methods mainly include incineration, landfill, composting, and sea throwing; there are two main methods for sludge incineration: one is direct incineration of dewatered sludge, and the disposal process There are few links and the process is simple, but the fuel consumption is large, and the operating cost and transportation cost are high; the other is to incinerate the dewatered sludge after drying or semi-drying tre...

AI Technical Summary

Problems solved by technology

[0003] From a global perspective, the currently commonly used sludge treatment and disposal methods mainly include incineration, landfill, composting, and sea throwing; there are two main methods for sludge incineration: one is direct incineration of dewatered sludge, and the disposal process There are few links and the process is simple, but the fuel consumption is large, and the operating cost and transportation cost are high; the other is to incinerate the dewatered sludge after drying or semi-drying treatment, although it can make the incineration relatively simple. Transportation costs are reduced, but supporting drying equipment is required, resulting in higher drying costs; when landfilling is used, various toxic and harmful substances contained in sludge will pollute groundwater and the atmosphere through erosion and leakage of rainwater. In addition, the large-area sites suitable for sludge landfill are becoming more and more limited due to the large amount of sludge output, and the long-distance transportation costs are also high

Sludge can be used in agriculture after being treated by composting, but direct application of pathogens and toxic and harmful substances contained in sludge to agriculture will cause secondary pollution of soil and water bodies, and there are still limitations in the case of immature related technologies The sludge thrown into the sea will pollute the ocean and pose a threat to the marine ecosystem and human food chain, which has been explicitly prohibited by international conventions; therefore, there is an urgent need for an effective, energy-saving and environmentally friendly sludge treatment system to solve the above problems

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