Laminated filter

Abstract

The invention relates to the technical field of sewage treatment, and discloses a laminated filter. The laminated filter comprises a machine body shell, a sewage inlet is fixedly formed in the bottomof one side of the machine body shell, a sewage outlet is fixedly formed in the lower surface of the machine body shell, a supporting rod is fixedly connected to the middle of the interior of the machine body shell in a sleeving mode, clamping strips are evenly and fixedly installed on the outer portion of the supporting rod, a plurality of clamping blocks are movably connected to the outer portion of the supporting rod in a sleeving mode, clamping grooves matched with the clamping strips are formed in the clamping blocks, and magnets are fixedly installed in the clamping blocks. According tothe laminated filter, the magnets are arranged on laminations, different magnetic poles of the magnets are opposite, and the magnets attract each other in the filtering stage, so that the laminationsare not easy to displace in the filtering process, the laminations are in a compressed state before one-time backwashing, and impurities intercepted by filtering are tightly clamped between two laminations, so that impurity particles do not accumulate dust and enter the inner rings of the laminations, and the filtering effect is improved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a laminated filter. Background technique [0002] With the rapid development of my country's social economy, the damage caused by water pollution to the environment is becoming more and more serious, and it is urgent to carry out sewage treatment. Among various sewage filtration equipment, laminated filters occupy an The floor area is small and the operating cost is low, so it is widely used. The work of the laminated filter can be divided into two types: one is the filtration stage, the water flows into the filter through the filter water inlet, and the filter laminate is under spring force and pressure when passing through the filter laminate. Under the action of hydraulic force, they are tightly pressed together, and the impurity particles are trapped at the intersection of the laminations, and the filtered water flows out from the main channel of the filter; the second...

AI Technical Summary

Problems solved by technology

[0003] First of all, after the laminated filter filters sewage each time, the trapped impurity particles are often stuck between the two laminated sheets. In order to save water resources, backwashing is basically performed after multiple filtrations, so that in After each filtration, the spring rebounds due to the disappearance of the hydraulic force. At this time, the small gap between the laminations is loosened, and the impurity particles that exist between the laminations after filtration are in the subsequent vibration of the elastic rebound. The position is constantly changing. At this time, the impurity particles may enter the laminated circle along the channel. In the next filtration, the filtered water will be removed, which will limit the filtration accuracy of the sewage.

[0004] Secondly, because the impurities intercepted during the filtration process may have viscosity, which makes the two laminates stick together after entering between the laminates, and then the impact force of the water flow cannot separate the two laminates that are stuck together during the backwashing process. , so that the impurities between the two laminations cannot be cleaned, and eventually the cohesive laminations will fail, which will reduce the filtering effect. If the gravity is too large, the recoil hydraulic force cannot rotate the laminations at this time, so that it can only be cleaned in the direction facing the nozzle, and cannot take care of other positions, so that the flushing effect is reduced; at the same time, in the filtration stage, close to the sewage inlet The impact force of the influx of sewage on one side is much greater than that on the side away from the sewage inlet, so that the sewage treatment capacity of the laminated sheets on the side close to the sewage is larger, and the cleaning force on both sides is the same during the backwashing stage, and then As a result, the cleaning strength on the side near the sewage inlet is not enough, making the cleaning unclean, while excessive cleaning on the other side causes waste of water resources

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