Sludge reduction treatment device and treatment method for city pipe network

Abstract

The invention discloses a sludge reduction treatment device and treatment method for a city pipe network. According to the sludge reduction treatment device for the city pipe network, a fine material separation screen is located at the upper part of a coarse material separation screen; the fine material separation screen and the coarse material separation screen are overlapped up and down; the coarse material separation screen is provided with a mud inlet and a coarse material outlet and a slurry storage tank is arranged at the lower part of the coarse material separation screen; the slurry storage tank communicates with a cyclone separator through a high-pressure suction pump; the cyclone separator is arranged at the upper part of the fine material separation screen, the separated liquid enters a middle storage tank and the separated solid falls into the fine material separation screen from the bottom of the cyclone separator; a fine material outlet is arranged in the fine material separation screen; a water liquid passing through the fine material separation screen falls into the coarse material separation screen at the lower part and enters the slurry storage tank again; a liquid outlet is arranged in the middle storage tank; and the middle storage tank communicates with the slurry storage tank through a floating ball liquid switch. The sludge reduction treatment device is compact in structure and high in treatment flow efficiency according to the treatment principle of solid-liquid separation from coarse to fine; and full-automatic treatment of the sludge of the city pipe network is achieved.

Description

technical field [0001] The invention relates to an urban pipe network sludge reduction treatment device and treatment method. Background technique [0002] According to the survey, my country's existing municipal daily maintenance still uses decades of tradition. In addition to traditional bamboo slices, colanders, manual twisting, and human lifting, maintenance workers often have frequent accidents in daily maintenance in major cities across the country. Sprinkling, dripping, and natural drying cause secondary pollution to the environment. Underground sewage sludge with high water content seriously pollutes groundwater sources. With the increase of labor costs, the existing maintenance mode has overwhelmed the cost of municipal management. "Looking at the sea in the city" has become a scene in many cities. Bring serious losses to the national economy. [0003] Pipe network sludge refers to the sediments that are dredged up during the maintenance and dredging of urban un...

AI Technical Summary

Problems solved by technology

[0018] 1. High transportation cost - high transportation cost without dehydration;

[0019] 2. Serious secondary pollution - due to the high moisture content of the sludge at the cleaning place (about 85% on average), direct cleaning and transportation will affect the normal operation of the landfill site, and if it is naturally dried, it will have a bad impact on the surrounding environment;

[0020] 3. Low work efficiency - the sewage pumping station needs many people to go down to the well and manually clear it;

[0021] 4. Poor safety—there are safety problems for the construction personnel to go down the well;

[0022] 5. The cost of landfill is high - the sludge with sewage cannot be landfilled if it is not treated. The cost of sludge dehydration and landfill is high, and the landfill occupies a large area

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