CN201578916U

CN201578916U - Rotary filtering device

Info

Publication number: CN201578916U
Application number: CN2009201672814U
Authority: CN
Inventors: 王宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-08-04
Filing date: 2009-08-04
Publication date: 2010-09-15
Anticipated expiration: 2019-08-04

Abstract

The utility model relates to a novel rotary filtering device, consisting of four basic units, namely, a filtering material, a filtering material supporting cylinder, a mud-absorbing water collector and a gas washing device, wherein the filtering material is arranged at the outer wall of the filtering material supporting cylinder; the cylinder wall of the filtering material supporting cylinder is provided with a water-passing hole; the mud-absorbing water collector is arranged at the outer side of the filtering material and is contacted with the filtering material; the gas washing device is arranged in the filtering material supporting cylinder and is contacted with the inner wall of the filtering material supporting cylinder; the water to be filtered enters the water-passing hole of the filtering material supporting cylinder through the filter material, then enters the filtering material supporting cylinder, and then is discharged by a flow-collecting pipe; and when the filtering resistance increases and the cleaning is needed, the filtering material supporting cylinder is rotated to start a mud-absorbing pump, the accumulated mud on the filtering material can be absorbed away by the mud-absorbing water collector, and also the gas washing device can be started to wash the filtering materials by the gas.

Description

A kind of rotary filter

Technical field

The utility model relates to a kind of rotary filter, belongs to the Separation of Solid and Liquid field, is mainly used in water treatment and filters.

Background technology

In water treatment field, traditional filter type mainly is the granule filter material depth filtration, deep bed filtration, granule filter material filters and belongs to contact in-depth filtration category, be mainly used in to water filtration and sewage second-level and handle out water filtration, the granule filter material good filtration effect, stable effluent quality, especially be fit to the high running water field of water quality requirement, but it is big to there is the loss of flood peak, floor space is big, the shortcoming that the backwash water consumption is big, requiring for effluent quality is not very high sewage water filtration, it or not optimal selection, therefore, use more rotating disc type filter cloth filter tank both at home and abroad recently, it is exactly a kind of reasonable scheme, this turntable filter chamber loss of flood peak is little, the 1/3-1/5 that has only granule filter material to filter, floor space is very little, water inlet≤20mg/s, water outlet SS can be stabilized in the 10mg/L, can be used for the filtration of sewage better, but this rotating disc type filter cloth filter tank also exists deficiency, filter cloth is owing to only depend on the negative pressure suck purge, the easy plug-hole of long-time use lost efficacy, and the filter cloth replacing is also inconvenient, and filter cloth could be changed in the emptying filter tank that must cut off the water.In addition, rotating disk filter cloth filter tank structure is complicated, cost is also high.

Practical content:

The purpose of this utility model mainly is at the above-mentioned deficiency in present rotating disc type filter cloth filter tank and improved a kind of novel filter.

The utility model mainly addresses the above problem by the following technical programs.

Filtrate, filtrate support tube, suction mud water collector, gas flushing device are basic composition of the present utility model unit, filtrate is contained in filtrate support tube outer wall, filtrate supports on the barrel water hole, inhale mud water collector and filtrate outer wall mutually manifold card filtrate, gas flushing device and filtrate support tube inwall join, the utility model filter vertically is positioned in the water, treat that drainage is through behind the media filtration, enter in the filtrate support tube by filtrate support tube water hole, discharge then, so just realized the Separation of Solid and Liquid process, water is purified.When the media filtration resistance increases to this cleaning and regeneration, slowly rotate filtrate support tube and filtrate, start cleaning and regeneration, the cleaning and regeneration method has three kinds, first method: suck purge regeneration, start aspirator, the collection mud in the filtrate can be siphoned away by inhaling the mud water collector, thereby realize regeneration, this method need not installed gas flushing device; Second method: gas bleed regeneration, start feeder, towards Xian's device filtrate is carried out purge by gas, filtrate collection mud falls into inhales the mud water collector, drains by inhaling the collection of mud water collector.Inhale the mud water collector if do not establish, then filtrate collection mud falls into and treats filter, sedimentation and draining; The third side is dirty: suck purge regeneration and gas bleed regeneration combine.The third method in these three kinds of methods is cleaned the most thorough, and regeneration effect is best, and filtrate is the longest service life, and just system and control want complicated.

Description of drawings:

Fig. 1 is a vertical view of the present utility model

Fig. 2 is a cutaway view of the present utility model

The specific embodiment

Below by embodiment also in conjunction with the accompanying drawings, the utility model content is further described in detail: filtrate (1) contacts with filtrate support tube (2) outer wall, filtrate support tube (2) plays a part to support filtrate (1), water hole on filtrate support tube (2) barrel plays a part to compile filter back water, and filtrate of the present utility model (1) is different mining filter cloth, filter screen or filter plate according to actual needs; Attaching has the mud water collector (4) of suction on filtrate (1) outer surface, and inhaling in the mud water collector (4) has mud discharging mouth (5), and collector pipe (6) is arranged in the filtrate support tube (2), and collector pipe (6) links to each other with collection pipe (7); Inwall attaching at filtrate support tube (2) has gas flushing device (3); As shown in Figure 2, general vertical being installed on of rotating filter device described in the utility model treated in the filter, treats that drainage enters the filtrate support tube (2) by the water hole on filtrate (1) and filtrate support tube (2) wall from the outside.Water is filtered, filter back water is sent by collector pipe (6), when filtering, filtrate (1) on the filtrate support tube (2) is motionless, when the needs cleaning and regeneration, rotates filtrate support tube (2), filtrate support tube (2) drives filtrate (1) and rotates synchronously, start cleaning regenerating unit then and carry out cleaning and regeneration, when rotating a week, clean and finish.Cleaning and regeneration has three kinds of modes:

First kind of mode: only with gas flushing device (3) cleaning and regeneration, its process is that the gas of certain flow, pressure enters gas flushing device (3) and is ejected on the filtrate (1), the collection mud of collection on filtrate (1) is gone out to fall into by air-flow and is inhaled mud water collector (4), taken over by mud discharging mouth (5) then and discharge, the suction mud water collector (4) here only serves as the effect of collecting spoil disposal.Can inhale mud water collector (4) in the manner;

The second way: only with inhaling mud water collector (4) cleaning and regeneration without gas flushing device (3);

Its mechanism is: inhale the external aspirator of mud discharging mouth (5) of mud water collector (4), when the regeneration of the clear elder generation of needs, start aspirator, by inhaling mud water collector (4) the collection mud in the filtrate (1) is siphoned away, thereby reach the purpose of regeneration.

The third mode: gas bleed regeneration and the regeneration of suction mud combine, and promptly with the suction mud water collector (4) and gas flushing device (3) combined cleaning of aspirator, cleaning is the most thorough like this, can prolong the service life of filtrate (1) greatly.

The utility model rotating filter device is when changing filter (1), easily, need not cut off the water, only need in advance with the stifled letter of plug collector pipe (6), mention filtrate support tube (2) and filtrate (1) then together, put in back the original place behind the replacing filtrate (1), pull out plug, can rework again, solve the problem that present rotation filter cloth filter tank exists.

Claims

1. rotary filter, form by filtrate, filtrate support tube, suction mud water collector, four elementary cells of gas flushing device, it is characterized in that filtrate (1) and filtrate support tube outer wall (2) join, gas flushing device (3) links to each other with filtrate support tube (2) inwall, inhales mud water collector (4) and joins with filtrate (1) outer surface.

2. a kind of rotary filter according to claim 1 is characterized in that filtrate support tube (2) is rotary.

3. a kind of rotary filter according to claim 1 is characterized in that filtrate (1) can adopt filter cloth, filter screen or filter plate.

4. a kind of rotary filter according to claim 1 is characterized in that cancelling and inhales mud water collector (4), and keeps gas flushing device (3).

5. a kind of rotary filter according to claim 1, the mud discharging mouth (5) that it is characterized in that inhaling mud water collector (4) can connect aspirator.