Filter

Abstract

A filter, which belongs to a water purification and recovery device, includes a shell, and the shell is composed of a mud collection area, a flocculation area, a sedimentation area, a filtration area, and a clear water area in order from bottom to top. The mud collection area is a conical collection area. Mud hopper, a flange cap is placed on the top of the conical mud collecting hopper. The port of the conical mud collecting hopper on both sides of the flange cap has a mud water inlet connected to the flocculation area, and the opening on the top of the flange cap is connected to an air inlet pipe. The upper part of a central liquid inlet tank is connected to the water inlet pipe, the top is connected to the exhaust pipe, the bottom is fixed in the center of the flange cap, and there is a water outlet hole on the side wall where it connects with the flange cap. It is a multi-functional solid-liquid separation device that integrates, discharges, and cleans. It has good mud collection during operation, stable water outlet, high filter efficiency, long service life, long continuous operation time, small investment, good treatment effect, and low operating cost. It can operate continuously at low pressure, discharge the concentrated liquid regularly, and the operation and management are very convenient.

Description

technical field [0001] The invention belongs to a water purification and recovery device, in particular to a filter integrating flocculation, sedimentation and filtration. Background technique [0002] Chinese patent application 99240225.5 discloses an "integrated sedimentation, suspension, filtration and water purification device". The bottom of the device is a flocculation chamber and an air cavity, the middle is a sedimentation zone, and the upper part of the sedimentation zone is a light suspension filter material layer. The density of suspended particles is smaller than that of the filtered liquid. The upper part of the filter material is a mesh or filter cap, and the upper part of the mesh is a clean water area. The shortcomings are: 1. The sludge discharge port is set on the flat bottom surface of the shell, and the sludge in the settlement area does not have a good sludge collection device, so it is not easy to settle down, and it is easy to be mixed with coagulation...

AI Technical Summary

Problems solved by technology

The disadvantages are: 1. The sludge outlet is set on the flat bottom surface of the shell, and the sludge coming down from the settlement area does not have a good sludge collection device, which is not easy to settle down and easily mixed with coagulation water; 2. The water outlet is set on the clear water On one side of the area, there will be short-circuit and partial flow of water flow during operation, which wastes the filtration area and affects the filtration efficiency; 3. The water in and out of the equipment depends entirely on the valves on the water inlet and outlet pipes, and there is no stable control of water volume inside the equipment. It is easy to affect the comprehensive effect of flocculation, sedimentation and filtration during operation; 4. The upper end of the equipment is closed, and after a period of operation, the mesh or filter cap is difficult to maintain and replace

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