Compression high-precision fiber cloth high-efficiency filter with automatic density gradient formation

Abstract

The invention discloses a compression-type high-precision efficient fiber cloth block filter capable of automatically forming a density gradient, and relates to the industrial wastewater treatment techniques. The filter comprises an upper end enclosure device, a cylinder device, a lower end enclosure, a stirring shaft, fiber cloth blocks and a steel tube support frame, wherein the upper end enclosure device, the cylinder device, the lower end enclosure and the steel tube support frame are sequentially connected to form a whole, and the stirring shaft and the fiber cloth blocks are arranged in the cylinder device. The compression-type high-precision efficient fiber cloth block filter has the beneficial effects that the filtration precision is high, and the water quality can reach a microfiltration level; the filtration range is wide, and the primary filtration and the deep (precise) filtration can be combined in a filter tank; and the universality is strong, namely the filter is not only suitable for the technical field of treatment of oily sewage in oil fields and also suitable for the technical fields of treatment of industrial sewage such as dyeing sewage, papermaking sewage, electroplating sewage, medical sewage, slaughtering sewage and leather sewage.

Description

technical field [0001] The invention relates to industrial sewage treatment technology, in particular to a compact high-precision fiber cloth high-efficiency filter that automatically forms a density gradient. Background technique [0002] For more than ten years, the patent applicant Cheng Zhonghe has devoted himself to the research of fiber depth filters, continuously accumulated and innovated, and has never given up until today. Among them, the invention of "compact high-precision fiber ball high-efficiency filter" (ZL201210144989.4, CN: 102657965) has the following problems (see Figure 7 ): [0003] 1. Filtration and backwashing are always a pair of contradictions. In order to improve the filtration accuracy, the fibers must be compressed; however, backwashing must loosen the fibers. Over the years, this contradiction has not been resolved to this day. The reducer, base, stirring shaft and paddles are all fixed together, and the hoist is used to pull up and down by it...

AI Technical Summary

Problems solved by technology

The test proves that there are serious problems with this design. It can reach the top dead center when ascending, but it is not so smooth when descending. This is because the guide tube is inherently unable to be positioned stably, resulting in misalignment.

[0004] 2. In order to improve the filtration accuracy and expand the filtration range, people have been working hard to study the density gradient. However, there has been no relevant report on the density gradient so far.

[0005] The problems in the above patents make it impossible to promote

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