CN202028252U

CN202028252U - Novel microfiltration machine for continuous water treatment

Info

Publication number: CN202028252U
Application number: CN2010205915964U
Authority: CN
Inventors: 陈建平; 董伟; 赵颖
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-11-04
Filing date: 2010-11-04
Publication date: 2011-11-09
Anticipated expiration: 2020-11-04

Abstract

The utility model relates to a microfiltration system for water treatment for simultaneously performing filtration and cleaning. The novel microfiltration machine mainly comprises a waste water supply system, a filtration system, a reverse cleaning system and an automatic control system. The microfiltration system is characterized in that the internal pressure of a box body is detected through a pressure sensor, and then a signal is sent out; the filtration of the two screen plates can be performed in turn through a mechanical transmission system; the specific mounting structure adopts a screen plate type structure; and filtration and cleaning can be performed simultaneously through the movement of the screen plates. In the utility model, the defects that a conventional rotary drum microfiltration device is required to be shut down at regular intervals and filtration fabric is replaced frequently are improved; the microfiltration system is simple and compact and has small occupied area, low cost and a favorable popularization and application prospect; and proper pressure is adopted to filter waste water, so that the filtration efficiency is improved.

Description

New type of continuous water treatment Microfilter

Technical field

The utility model relates to a kind of continuous water treatment microfiltration system of carrying out simultaneously with cleaning of filtering, and adopts the sieve-board type structure, makes two sieve plates filter in turn by machine driven system.

Background technology

Domestic-developed has gone out the micro-filtering cloth to filter device of filter cloth rotary disc filter at present, mainly adopts stainless steel or synthetic fabrics filter cloth as filter medium.Rotating disc type micro-filtering cloth to filter device is when filtering, sewage enters the filter tank and floods the filter cloth rotating disk fully, and sewage filters by filter cloth under the gravity effect, and solid particulate matter is retained in the filter cloth surface and is removed, filtered fluid is collected by central collector pipe, and gravity current is discharged the filter tank by overflow launder.During the filtration, filter rotating disk and be in static state, be beneficial to big solid particulate matter sedimentation.Along with solid particulate matter forms sludge blanket gradually on filter cloth surface and inner continuous accumulation.Along with gathering of mud, the filter cloth filtration resistance increases, and water level raises gradually in the filter tank.Change by liquid level in the liquid level gauge monitoring filter tank, when liquid level in the filter tank arrived setting backwash liquid level, PLC started backwashing pump, the beginning backwash.In the backwash process, rotating disk still remains on submerged state, and rotate with certain speed, being located at rotating disk both sides vacuum suction apparatus will filter water outlet and therefrom entreat to extract out in the collector pipe and make it to enter vacuum plant by filter cloth, and rotating disk does not stop rotation, removes by this reverse flow and dams in filter cloth surface and inner particle.Mainly there is following problem in existing micro-filtering cloth to filter device: because filter cloth order number is higher, filter cloth is blocked easily, and filter efficiency is lower; Need to shut down and carry out the cleaning and the replacing of filter cloth, be difficult to realize continuous filtration, significantly reduced effective filtration time; The anti-cleaning of filter can't in time be carried out, and it is comparatively serious to cause filter cloth to stop up, and is also very difficult even shutdown is cleaned, and causes the replacing of filter cloth frequent, prolonged the time of shutting down; The strict sealing of version of existing filter need the sealing many places, and seal length is big, and sealing reliability is poor, easily produces to leak and influence effluent characteristics, and then causes the maintenance maintenance workload that seals big, influences ordinary production.When the needs amount of disposing of sewage is big, can only increase the filter number, occupation area of equipment is big, the cost height.

Summary of the invention

The purpose of this utility model is to solve the problem that existing micro-filtering cloth to filter device exists, improve filter efficiency, microfilter device adopts the continuous filtration method, promptly when filtering sewage to filter cloth instead clean and scrub, other effective cleaning ways such as air-blowing, have the filter efficiency height, working stability is safe and reliable, equipment cost is low, and floor space is few, energy resource consumption is little, the advantage that is easy to apply.

The utility model solves its technical problem and is achieved through the following technical solutions:

This filtration system is equipped with pressure sensor at the upper box of filter, detect the pressure of upper box water in real time, because the accumulation of impurity is stopped up in the water, the circulation of filter cloth will reduce, cause upper box hydraulic pressure to raise, set value when pressure surpasses, control system is sent signal control motor and is rotated, utilize transmission mechanism to drive sieve plate and do horizontal movement, be deposited on the online solid matter of filter cloth by the back cleaning system cleaning simultaneously.Touch limit switch when sieve plate arrives the precalculated position, control system is given an order, the sieve plate stop motion.When upper box hydraulic pressure surpassed setting value once more, sieve plate oppositely moved, and filter cloth obtains cleaning and round brush once more, filter so repeatedly carry out work, realize continuous filtration and continuous wash, make filter in shape.

Advantage of the present utility model and beneficial effect are:

1, realizes filtering and cleaning and carry out simultaneously, significantly improve filter efficiency.Improve the existing fatal shortcoming that Microfilter easily stops up, anti-cleaning performance is bad, filter efficiency is low, cost of equipment maintenance is high from principle.Operating cost is low, and it is little to consume energy, and floor space is little.Simple in structure, equipment manufacturing cost is lower.

2, do not need strict sealing, the sealing maintenance workload is little, and effluent characteristics is stable.

3, improve the Microfilter practicality, widen applicable working condition.The equipment applied range, can be applicable to that sewage disposal, running water are handled and industry in field such as water treatment.

4, have good operating characteristics and security.Simple and convenient operation and maintenance.Equipment automatically performs and considers plate flushing, Inlet and outlet water in the work; functions such as spilling water recovery; do not need the people to intervene; each drive disk assembly all is provided with protective cover; dynamic components such as transmission mechanism are provided with electrical equipment self interlocking defencive function; avoid entering the start of machine intimate work mistiming, eliminate safe hidden trouble to greatest extent the maintenance worker.

Description of drawings

Fig. 1 is new type of continuous water treatment Microfilter overall structure figure;

Fig. 2 is a native system control circuit schematic diagram.

Wherein, 1, frame 2, sieve plate guide rail 3, upper box 4, inner sealing bar 5, cleaning rolling brush 6, sieve plate 7, tooth bar.

The specific embodiment

The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.

A kind of continuous microfiltration system of water of carrying out simultaneously with cleaning of filtering mainly is made up of sewage feed system, filtration system, back cleaning system and automatic control system several sections.Upper box is equipped with pressure sensor, detects the pressure of upper box water in real time, and when pressure surpasses setting value, control system is sent the signal controlling pinion and rack and driven sieve plate and do horizontal movement and filter.The innovation part of native system is: detect the casing internal pressure by pressure sensor, send signal, make two sieve plates filter in turn by machine driven system.Mounting structure is: pressure sensor is installed on upper box inside.Filter cloth is tightened on the sieve plate, bolting on every side, sieve plate is loaded on the upper box bottom and is equipped with in the guide rail of trundle.Gear is fixed on the side frame, and the tooth bar cooperation is installed under the outside sieve plate of casing.In order to stop the slit between sieve plate and casing that seepage takes place, inside and outside casing, all adopt combined sealing structure.

Operation principle of the present utility model is:

Fig. 1 is the overall structure figure of sieve-board type microfiltration machine.Water pump pumps into treatment sewage from filter sewage supply port.Upper box 3 at filter is equipped with pressure sensor, detect the pressure of upper box water in real time, because the accumulation of impurity is stopped up in the water, the circulation of stainless steel filter cloth will reduce, cause upper box hydraulic pressure to raise, set value when pressure surpasses, control system is sent signal control motor and is rotated, utilize transmission mechanism 7 to drive sieve plate 6 and do horizontal movement, and be deposited on the online solid matter of filter cloth by back cleaning system 5 cleanings.Touch limit switch when sieve plate arrives the precalculated position, control system is given an order, the sieve plate stop motion.When upper box hydraulic pressure surpassed setting value once more, sieve plate oppositely moved, obtain once more cleaning and round brush, filter so repeatedly carry out work, realize continuous filtration and continuous wash.

In sum, the utility model is safe and reliable, simple, can realize filtering with cleaning and carry out simultaneously, and the filter efficiency height is a kind of desirable continuous microfilter device.

Claims

1. new type of continuous water treatment Microfilter, mainly form by sewage feed system, filtration system, back cleaning system and automatic control system several sections, it is characterized in that: described sewage is supplied with casing and is made up of upper and lower casing, pressure sensor is equipped with in upper box inside, all adopt combined sealing structure inside and outside the casing, described filtration system sieve plate is loaded between the lower box in the guide rail, filter cloth is tightened on the sieve plate, described anti-cleaning round brush is installed on the casing outside and filters the sieve plate top, and described automatic control system comprises pressure sensor, charactron, motor, limit switch.

2. new type of continuous water treatment Microfilter according to claim 1 is characterized in that: described sieve plate is loaded on the upper box bottom and is equipped with in the guide rail of roller, and filter cloth is tightened on the sieve plate, uses bolting on every side.