Sludge sand setting device

Abstract

The invention belongs to the technical field of sludge sand setting, specially relates to a sludge sand settling device that comprises a second mounting shell, a fourth mounting shell, a third mounting shell, a first mounting shell, a precipitation shell, a shielding device, a gathering device and a bracket; according to the sand setting device designed by the invention, mud and sand are settled through gravity, and waiting time is needed; the device is same as those of a traditional advection sand setting device, but the mud and sand and settled sewage can be simultaneously pumped in the pumping process of the sand setting device designed by the invention, so that the efficiency is improved. According to the sand setting device designed by the invention, all the steps are relatively independent and are respectively controlled, the mutual influence is small, and the design cost is lower compared with vortex sand setting and aeration sand setting. Compared with the advection sand setting device, the sand setting device designed by the invention has the advantages that the size is smaller, and the occupied area is smaller. The amount of sediment mud and sand in the third mounting shell can be observed through a glass observation sheet, and then the suction time is adjusted.

Description

[0001] Technical field [0002] The invention belongs to the technical field of sludge grit deposition, in particular to a sludge grit deposition device. Background technique [0003] Sewage treatment is the process of purifying sewage to meet the water quality requirements for drainage or reuse; in the existing sewage treatment process, sewage needs to be treated with sand. [0004] Traditional grit chambers include: [0005] First, the advection sand settling device, the device has a simple structure and low cost; however, the device relies on gravity to settle and the water flows continuously, which will result in a larger device size and a wider area; during the sand settling process, the mud and sand will be The organic matter in the sand will be precipitated together, because the device relies on gravity to settle, resulting in organic matter in the grit, and long-term stacking will cause the organic matter to rot and cause stench, and the device is likely to cause wate...

AI Technical Summary

Problems solved by technology

[0005] First, the advection sand settling device, the device has a simple structure and low cost; however, the device relies on gravity to settle and the water flows continuously, which will result in a larger device size and a wider area; during the sand settling process, the mud and sand will be The organic matter in the sand will be precipitated together, because the device relies on gravity to settle, resulting in organic matter in the grit, and long-term stacking will cause the organic matter to rot and cause stench, and the device is likely to cause water flow disturbance during the sand pumping process, reducing the grit effect; for Some small factories generally use this device in order to reduce costs, but its efficiency is low

[0006] 2. Vortex sand settling and gas explosion sand settling, these two devices can separate organic matter in sewage, but the design of these two devices is relatively professional, and the design cost is relatively high, which leads to increased purchase costs; generally suitable for large factories , for some small factories generally do not use it due to cost considerations

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