Fill interception and channeling system

Abstract

The invention discloses a filler interception and drainage system. A training wall is arranged in the length direction of a sewage treatment pool; the front end of the training wall is in fit with the pool wall; a gap is reserved between the rear end of the training wall and the pool wall; a water inlet is formed in one side of the training wall, and a water outlet is formed in the other side of the training wall; an interception wall is arranged in front of the water outlet; drain holes are formed in the middles of the interception wall; a cylindrical mesh covers each drain hole; a material discharge groove is formed in the upper end of the interception wall; a through-wall pump is mounted in the material discharge groove; the rear part of the interception wall is divided into an upper part and a lower part through a partition; the upper part is a filler platform; the through-wall pump pushes a filler and water to the filler platform; the lower part is a water draining cavity allowing sewage to enter, and then the sewage is discharged from the sewage treatment pool; a notch is formed in the training wall at the filler platform to enable the filler platform to be communicated with one end of the water inlet to form circulation inside the pool. The system combines the flow direction design, is reasonable in design, is free of partial blockage, saves materials, is low in cost, avoids accumulation at dead angles as the water flow is slow, and is low in running cost, thereby being suitable for filler drainage during sewage treatment.

Description

technical field [0001] The invention relates to the technical field of sewage treatment. Background technique [0002] For the MBBR process in the sewage treatment system, a certain proportion of biological suspension filler is placed in the water, and the biofilm is attached to the filler to purify the sewage. Sewage continues to flow into the pool from the water inlet, and flows along the guide in the pool for a period of time to be discharged from the water outlet. During this time, the sewage is decomposed and purified by the biofilm carrier on the filler, and the filler needs to be kept in the pool for circulation. In the prior art, in order to maintain the continuous inflow and outflow of sewage and the circulation of the filler, the filler interception and dredging system adopted such as figure 1 As shown, a diversion wall is set in the pool, and the front and rear ends of the diversion wall maintain a gap with the pool wall, and the sewage as a whole continues to ro...

AI Technical Summary

Problems solved by technology

[0005] 3. In order to avoid the accumulation of the above-mentioned fillers, it is necessary to use a more powerful propeller to increase the moving speed of the fillers in the pool, resulting in serious wear between the fillers and the wall, and between the fillers and the paddles;

[0006] 4. The use of high-power submersible flowmakers has high energy consumption and increased operating costs;

[0008] 6. Due to the physical characteristics of the plate-type interception net, its bending and tensile strength is small and it is easy to deform. Therefore, when designing, it is necessary to use a smaller flow rate through the hole, so the area of ​​​​the interception net is larger and the cost is higher.

[0009] Therefore, the use of plate-type interception and dredging system has high energy consumption and poor reliability, which cannot meet the needs of MBBR treatment process

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