CN103157329A

CN103157329A - Ceramic filtration plate cleaning method

Info

Publication number: CN103157329A
Application number: CN2011104066076A
Authority: CN
Inventors: 曹辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-08
Filing date: 2011-12-08
Publication date: 2013-06-19
Anticipated expiration: 2031-12-08
Also published as: CN103157329B

Abstract

The present invention relates to a ceramic filtration plate cleaning method. According to a ceramic filtration plate with a built-in cavity, the cavity is provided for storing a filtered water body, and is communicated with the outer part of the ceramic filtration plate through water discharge holes. According to the cleaning method, compressed air is introduced to the cavity inside the ceramic filtration plate so as to achieve ceramic filtration plate cleaning, such that impurities deposited inside the ceramic filtration plate are blown out of pores from inside to outside so as to improve filtration water quality and prolong a service life of the ceramic filtration plate, and gas and moisture escaping from the ceramic filtration plate during a cleaning process form a layer of a gasification water mist film on the surface so as to remove pollutants attached on the surface of the ceramic filtration plate in an extremely short time and substantially improve cleaning efficiency of the filtration plate. In addition, the ceramic filtration plate cleaned by using the method has low water content, and can be subjected to direct warehousing, such that cost for the intermediate steps from cleaning to warehousing in the conventional method can be saved, and the method is a cleaning method with characteristics of convenient operation, rapidness and efficiency.

Description

A kind of cleaning method of ceramic filter plate

Technical field

The present invention relates to a kind of cleaning method of water treatment annex, more specifically, relate to a kind of cleaning method of ceramic filter plate.

Background technology

mostly adopt High-Pressure Water that the surface of filter is rinsed to the cleaning of ceramic filter plate in prior art, although the method can be removed the impurity that is attached to the ceramic filter plate surface, but helpless to the impurity and the organic matter that enter the ceramic filter intralamellar part in the water filtration process, even because washing pressure is too high, the impurity that itself is positioned at the filter surface can be squeezed into the ceramic filter intralamellar part, this not only can allow the water quality that the later stage filters reduce, but also may cause the space of ceramic filter plate filter course to be stopped up, reduce filter efficiency, being in for a long time this duty also can cause ceramic filter plate to be scrapped, simultaneously, it is moisture higher for the ceramic filter plate after cleaning according to above method, maybe can put in storage after need to utilizing other drying equipments to carry out drying or after the placement long period, and is very inconvenient.

Summary of the invention

The object of the invention overcomes the deficiencies in the prior art exactly, and a kind of cleaning method of ceramic filter plate is provided, and adopts the method the impurity that is deposited on the ceramic filter intralamellar part can be blown out hole, has extended the service life of filter when improving filtering water.

In order to achieve the above object, adopt following steps to realize:

A kind of cleaning method of ceramic filter plate, based on the ceramic filter plate of built-in cavity volume, described cavity volume be used for storage after filtering water body and be communicated with the ceramic filter plate outside by osculum, comprise the following steps realization:

S1, connection tracheae: the place arranges joint at osculum, and described joint one end is connected with osculum, and the other end is connected with tracheae;

S2, sealing: at joint and osculum link position, hermetically-sealed construction is set, the sealing structure is used for guaranteeing connecting for hermetic seal between osculum and joint;

S3, cleaning: pass into compressed air in tracheae.

Further, in described step s3, compressed-air actuated air pressure is between 50MPa-200MPa.

As a kind of specific embodiment, in described step s3, ceramic filter plate is positioned in water.

As a kind of specific embodiment, in described step s3, pass into compressed-air actuated process and continue 2-10s.

As a kind of specific embodiment, in described step s3, be batch process by compressed-air actuated process.

As a kind of specific embodiment, the seal nipple of described joint for guaranteeing to connect for hermetic seal between osculum and joint, described step s1 and step s2 complete simultaneously.

Compared with prior art, beneficial effect of the present invention is:

By pass into compressed air in the ceramic filter plate of built-in cavity volume, the impurity that is deposited on the ceramic filter intralamellar part can be blown out hole from inside to outside, extended the service life of ceramic filter plate when improving filtering water; In cleaning process, the gas of effusion ceramic filter plate and moisture form one deck gasification water smoke film on its surface, can the pollutant removal on ceramic filter plate surface will be attached at the utmost point in short time, greatly improved the cleaning efficiency of filter, simultaneously, adopt the ceramic filter plate moisture content after the method is cleaned very low, can directly put in storage, saved in the conventional method from cleaning to the expenditure of warehouse-in intermediate link.

Description of drawings

Fig. 1 is the top view of ceramic filter plate in the embodiment of the present invention 1.

Fig. 2 is that the A-A of Fig. 1 is to sectional view.

Fig. 3 is that in the embodiment of the present invention 1, schematic diagram is cleaned in the filtration to ceramic filter plate.

Fig. 4 is the structural representation of ceramic filter plate in the embodiment of the present invention 2.

Fig. 5 is to the cleaning schematic diagram of ceramic filter plate in the embodiment of the present invention 2.

Embodiment 1:1-ceramic filter plate; The 11-ceramic substrate; 12-nano ceramics film; The 14-passage; 151-the first bottom surface; 152-the second bottom surface; 161-the first side; 162-the second side; The 17-ribs; 181-the first end face; 182-the second end face; The 21-seal nipple; The 22-sealing shroud; The 3-water tank; The 4-tracheae, 51-the first switch valve; 52-second switch valve.

Embodiment 2:1 '-ceramic filter plate; 21 '-joint; The 61-installing hole; 62-water storage passage; The 63-matrix; The 64-osculum; The 65-passage that catchments.

The specific embodiment

Below in conjunction with description of drawings and the specific embodiment, the present invention is made further explanation:

Embodiment 1

referring to Fig. 1 and Fig. 2, the described ceramic filter plate 1 of the present embodiment, comprise ceramic substrate 11, described ceramic substrate 11 comprises two

end faces

181 and 182, two

sides

161 and 162 and two bottom surfaces that are parallel to each other 151 and 152, be provided with in described ceramic substrate 11 respectively and two

end faces

181 and 182 cavity volumes that run through, described cavity volume is used for storage water body after filtering, the shape of cross section of cavity volume is rectangle, the intersection of the bottom surface 151 (or 151) of a pair of relative edge of described rectangle and plane, rectangle place and ceramic substrate is parallel to each other, described ceramic substrate 11 is coated with nano ceramics film 12 on the bottom surface, be provided with irregular hole on nano ceramics film 12, two parallel bottom surfaces 151 of ceramic substrate 11 and 152 can be curved surfaces, such as being similar waveform, the global shape of ceramic substrate 11 is also waveform in this case, this parallel bottom surface 151 and 152 can be also the plane, as shown in Figure 1: ceramic substrate 11 is rectangular structure, described cavity volume is linear structure, also be provided with in cavity volume for the ribs 17 that cavity volume is divided into a plurality of passages 14, described ribs 17 extends to

end face

181 and 182 positions along the axial direction of cavity volume, the quantity of ribs 17 is more than or equal to 1, the both sides of ribs 17 respectively with cavity volume near ceramic substrate 11 two bottom surfaces 151, 152 inwall is connected, the matrix of ceramic substrate 11 and nano ceramics film 12 is aluminium oxide, the metal oxide such as titanium oxide or zirconia, in the present embodiment, due to cavity volume and by the separated passage 17 of cavity volume all with the end face 181 of ceramic filter plate and 182 perforations, therefore passage 17 is osculum in the part near

end face

181 and 182.

Based on the structure of above-mentioned ceramic filter plate, a kind of method of cleaning ceramic filter comprises the following steps realization:

S1, connection tracheae: joint is set at osculum (being that passage 17 is at

end face

181 and 182 places near ceramic substrate 11), described joint one end is connected with passage 17, the other end is connected with tracheae 4, obviously, referring to Fig. 3, as required also can be only at close end face 181 places of passage 17, seal nipple 21 be set, passage 17 seals with sealing shrouds 22 near end face 182 places, wherein an end of seal nipple 21 connects the passage 17 of ceramic substrate 11, and the other end connects tracheae 4.

S2: sealing: hermetically-sealed construction is set at joint 21 and osculum link position, the sealing structure is used for guaranteeing connecting for hermetic seal between osculum and joint, in the present embodiment, because the joint 21 in previous step is seal nipple, therefore seal nipple 21 has namely been completed sealing simultaneously in the process of the end face 181 that connects tracheae 4 and ceramic substrate 11, this step can be omitted.

S3: clean: pass into compressed air in tracheae, as required, passing into the compressed air process can continue for some time, and this duration is preferably 2-10s, as a kind of common practise, also can adopt the mode of intermittently ventilation to pass into compressed air in tracheae 4.

Pollute for fear of the impurity from ceramic filter plate 1 internal void, in cleaning process, preferably ceramic filter plate is positioned in water, can adopt air pressure is that the compressed air of 50MPa-200MPa cleans.

In order to allow those skilled in the art more clearly understand the application possibility of cleaning method of the present invention, below according to the present invention will be further described from the angle of operating process again:

End face

181 and 182 with

seal nipple

21 and 22 pairs of ceramic substrates 1 of sealing shroud seals to avoid outside air and moisture to enter through hole respectively, wherein an end of seal nipple 21 is communicated with passage 14, the other end connects tracheae 4, tracheae 4 is connected with the second switch valve with the first switch valve 51 respectively by three-way connection and is connected, the other end of the first switch valve 51 is connected with air compressor, and the other end of second switch valve 52 is connected with water pump.

When the water in water tank 3 is filtered, close the first switch valve 51, open second switch valve 52 and water pump, during pump working, tracheae 4 and passage 14 spaces, place are evacuated, nano ceramics film 12 and ceramic substrate 11 admission passages 14 of the water infiltrate ceramic filter plate 1 in water tank 3, be pumped immediately, in above process, part tiny dust in water tank may enter in the hole of nano ceramics film 12 and ceramic substrate 11, and has partial organic substances to be attached to the surface of ceramic filter plate 1.

when above-mentioned ceramic filter plate 1 is cleaned, close second switch valve 52, open the first switch valve 51, from the compressed air of air compressor via tracheae 4 admission passages 14 and overflow from the hole of nano ceramics film 12 and ceramic substrate 11, in the effusion process, compressed air is taken small pollutant therebetween out of when moment (usually less than 1s) is extruded the moisture in nano ceramics film 12 and ceramic substrate 11 spaces, and at ceramic filter plate 1 surface formation gasification water smoke film, the pollutant that is deposited on ceramic filter plate 1 surface is rinsed out, thereby complete the cleaning to ceramic filter plate 1, make it to enter next filtration cycle.

Should be appreciated that, the described content of the present embodiment, except the structure of ceramic filter plate 1, cleaning method reaches other embodiment that are applicable to too this specification with the correlated condition of cleaning method.

Embodiment 2

The present embodiment is from the different of embodiment 1, and the ceramic filter plate in the present embodiment is the usual ceramic filter plate that uses on existing vacuum filter.

referring to Fig. 4, ceramic filter plate 1 ' in the present embodiment is the fan shape structure, it has installing hole 61 at the place of keeping to the side, this ceramic filter plate 1 ' comprises matrix 63, matrix 63 outer surfaces are coated with the filtration coating, be provided with in described matrix 63 be used to storing the cavity volume of water body after filtration, described cavity volume formation rule or be distributed in brokenly water storage passage 62 in matrix, water storage passage 62 is linked as intercommunication integral body by the passage 65 that catchments, also have osculum 64 on matrix 63, osculum 64 1 ends connect the passage 65 that catchments, one end is connected with tracheae 4 by seal nipple 21 ', tracheae 4 connects air compressor by switch valve 51.

Based on said structure, ceramic filter plate cleaning method of the present invention is completed (referring to Fig. 5) by following steps:

S1: connect tracheae, 64 places arrange joint 21 ' at osculum, and described joint 21 ' one end is connected with osculum 64, and the other end is connected with tracheae 4;

S2: sealing: hermetically-sealed construction is set at joint 21 ' and osculum 64 link positions, the sealing structure can be the fluid sealant that is coated on above-mentioned link position, can be also to be arranged at the sealant tape of joint surface or other can guarantee the device that connects for hermetic seal between osculum and joint 21 ';

S3: clean: open the first switch valve 51, make from the compressed air of air compressor and enter ceramic filter plate 1 ' inside from tracheae 4 via steam vent 64, and outwards overflow from water storage passage 62 inner wall positions, with the described cleaning process of embodiment 1 in the same manner, this Partial shrinkage air has namely been completed the cleaning to ceramic filter plate 1 ' in the effusion process.

Certainly; the content that above specific embodiment is announced only is part preferred version of the present invention; be applicable to ceramic filter plate of the present invention and be not limited to above-mentioned plane filter; it also comprises the hollow filter of curved surface or other profiles; in a word; every based on technical scheme of the present invention, technical spirit according to the invention, belonging to those skilled in the art, to need not to carry out creative work be that available enforcement all should belong to protection scope of the present invention.

Claims

1. the cleaning method of a ceramic filter plate, based on the ceramic filter plate of built-in cavity volume, described cavity volume be used for storage after filtering water body and be communicated with the ceramic filter plate outside by osculum, it is characterized in that, comprise the following steps realization:

S3, cleaning: pass into compressed air in tracheae.

2. the cleaning method of ceramic filter plate as claimed in claim 1, is characterized in that, in described step s3, compressed-air actuated air pressure is between 50MPa-200MPa.

3. the cleaning method of ceramic filter plate as claimed in claim 2, is characterized in that, in described step s3, ceramic filter plate is positioned in water.

4. as the cleaning method of the described ceramic filter plate of claim 1-3 any one, it is characterized in that, in described step s3, pass into compressed-air actuated process and continue 2-10s.

5. as the cleaning method of the described ceramic filter plate of claim 1-3 any one, it is characterized in that, in described step s3, is batch process by compressed-air actuated process.

6. as the cleaning method of the described ceramic filter plate of claim 1-3 any one, it is characterized in that, the seal nipple of described joint for guaranteeing to connect for hermetic seal between osculum and joint, described step s1 and step s2 complete simultaneously.