Rotary fabric filter

Abstract

The invention belongs to the technical field of water treatment, and particularly relates to a rotary fabric filter. The rotary fabric filter comprises a water outlet, a shell, a water outlet weir, a separating plate, guide tracks, vent nozzles, a trolley, a backwash component, filter material components, a water header, a water inlet and a sludge tank, wherein the water inlet, the water outlet and the vent nozzles are respectively disposed on the lower side of the shell, the platy filter material components are vertically mounted in the shell, the trolley is positioned on the trolley guide tracks on the top of the shell and can move on the trolley, a dredge pump is fixed to the lower side of the trolley, one end of each dredging tube is positioned on the corresponding side of the corresponding platy filter material component, the other end of each dredging tube is connected with the dredge pump by a dredge header, and a dredging inclined plate with a certain gradient is arranged at the bottom of the shell. As the rotary fabric filter is provided with light filter materials and is operated without a valve, the rotary fabric filter has the advantages of large filter area, low filter load, backwashing water consumption and energy consumption, flexibility in system configuration, small occupied area, simplicity in running and maintenance, high automation degree and the like, and has higher purification efficiency when used with conventional water treatment technology.

Description

technical field [0001] The invention belongs to the technical filtration field of water treatment, and in particular relates to a rotary fiber filter. Background technique [0002] The form of the filter and the material of the filter material are constantly changing. The forms of the filter include ordinary fast filter, double valve filter, siphon filter, valveless filter, soda recoil filter, etc.; the filter material mainly includes quartz Sand, white coal, ceramsite, discs, plastic beads, microporous tubes, fibers, etc. The reform is mainly carried out around three aspects: reducing the use of valves to save investment and reduce operating links. Change the type and combination of filter materials. In order to improve the sewage interception ability of the filter material and improve the water quality of the effluent, and it is easy to implement backwashing. Save backwash water, reduce water pressure, or supplement with gas flushing. These changes and improvements hav...

AI Technical Summary

Problems solved by technology

These changes and improvements have improved the technical level of filtration, but there are still some insurmountable obstacles that affect the further development of filtration technology, mainly in the following aspects: (1) The use of granular filter materials cannot achieve reverse filtration. Grading

Even for the so-called homogeneous filter material, after backwashing, there will always be layers of upper and lower layers, resulting in premature clogging of the surface layer, resulting in shortened filtration cycle and increased water consumption for rinsing; in addition, the filter material is bulky and difficult to fill and replace

(2) With the increasing scale of water treatment, the water pumps and fans used for backwashing and the amount of water consumed are also increasing, resulting in high energy consumption and a large footprint

Once the filter material is put into use, its porosity cannot be changed, and it cannot be adjusted according to the filtering effect, which lacks flexibility.

Images