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High-efficiency energy-saving granular filter and backflushing method

A high-efficiency and energy-saving technology for filter material filters, applied to loose filter material filters, gravity filters, chemical instruments and methods, etc., can solve the problems of frequent replacement of filter materials, complex scrubbing structure, and easy damage of scrubbing pumps, etc. Achieve the effect of backwashing with high efficiency and energy saving, eliminate backwashing dead angle, and save energy consumption

Active Publication Date: 2015-07-08
武汉市汉江石油物资技术开发有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the scrubbing structure of this filter is more complicated than that of traditional filters, and there are problems such as serious wear of the filter material, easy loss of filter material, frequent replacement of filter material, easy damage to the scrubbing pump, and high energy consumption for backwashing.

Method used

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  • High-efficiency energy-saving granular filter and backflushing method
  • High-efficiency energy-saving granular filter and backflushing method
  • High-efficiency energy-saving granular filter and backflushing method

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Embodiment 1

[0037] Embodiment 1: a kind of high-efficiency and energy-saving granular filter material filter and backwashing method provided by the present invention, the filter structure that it uses is as follows figure 1 , 2 , Shown in 3 and 4, comprise filter body, backwash assembly, backwash water tank 1, air compressor 41 and control system 43, granular filter material selects walnut shell as filter material in the present embodiment. The filter body is composed of an upper oval head 20 , a tank body 21 and a lower oval head 4 . In this embodiment, an upper screen tube / plate 44 of a screen structure is installed at the junction of the tank body 21 and the upper oval head 20 in the filter body; a screen is also installed at the junction of the tank body 21 and the lower oval head 4. The lower screen tube / plate 49 of the tube structure; the top center of the upper oval head 20 is provided with an oil discharge / air outlet 18, and the top of the upper oval head 20 is also provided with...

Embodiment 2

[0049] Embodiment 2: a kind of high-efficiency and energy-saving granular filter material filter provided by the present invention, its structure is basically the same as that of embodiment 1, the difference is only that the upper screen tube / plate 44 and the lower screen tube / plate 49 all adopt a The structure of the entire sieve plate and 16 backwashing nozzles are installed, and only one row of nozzles 54 is arranged on the cylinder 53 of the backwashing nozzle 48, and there are 18 nozzles in total. The central angles between the two nozzles are equal, α= 20°.

Embodiment 3

[0050] Embodiment 3: a kind of high-efficiency and energy-saving granular filter material filter provided by the present invention, its structure is basically the same as embodiment 2, the difference is that 10 backwash nozzles are installed, and on the cylindrical body 3 of backwash nozzle 48 There are 3 rows of nozzles 4, each row has 6 nozzles, the central angles between the two nozzles are equal, α=11°, the first row of nozzles is aligned with the third row of nozzles, the second row of nozzles is aligned with the first and third rows The nozzles are misplaced, and the misalignment angle is (1 / 2)α=30°.

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Abstract

The invention relates to a high-efficiency energy-saving granular filter which comprises a filter body, a backwashing assembly, a backwashing water tank, an air compressor and a control system. A tank body and upper and lower oval sealing heads are arranged on the filter body; upper and lower sieve tubes / plates are arranged in the tank body; an oil / gas discharge port and a sewage inlet assembly are arranged at the top of the upper oval sealing head; a water outlet, a discharge port and supporting legs are arranged at the end of the lower oval sealing head; a backwashing water inlet and a backwashing gas inlet are arranged on the backwashing assembly; after being connected with a water inlet pipe, a backwashing water inlet pipe is connected with a backwashing spray nozzle; the backwashing water tank is connected with a filter by a return pipe; after being connected with a gas control valve, a gas check valve and the like, the air compressor is connected with the backwashing gas inlet by pipelines; by the control system, each valve, a backwashing water source and a backwashing gas source are automatically controlled to carry out operation according to the program. The filter disclosed by the invention has a simple structure, adopts a three-phase flow backwashing technology, is convenient to operate, is low in backwashing water consumption, is effective and energy-saving to backwash and has long equipment service life.

Description

technical field [0001] The invention relates to a high-efficiency and energy-saving granular filter material filter and a backwashing method. Background technique [0002] Filters are widely used in metallurgy, chemical industry, petroleum, papermaking, medicine, food, mining, electric power, and urban water supply fields. Such as industrial wastewater, circulating water filtration, emulsion regeneration, waste oil filtration treatment, continuous casting water system in metallurgical industry, blast furnace water system, high pressure water descaling system for hot rolling, etc. are inseparable from filters, oilfield sewage Processing is also inseparable from filters. [0003] For example, the granular filter materials commonly used in my country's oilfields include quartz sand filters, walnut shell filters, double-layer filter filters, and multi-layer filter filters. The biggest advantage of these granular filter materials is that the granular filter material has been sp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D24/02B01D24/46
Inventor 李伟王亚力王成肖伟
Owner 武汉市汉江石油物资技术开发有限责任公司
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