CN2782190Y

CN2782190Y - Filtering material stock stop for fiber filter tank

Info

Publication number: CN2782190Y
Application number: CN 200520102022
Authority: CN
Inventors: 洪积深; 陈党生; 韩彦春
Original assignee: DEAN NEW-TECHNOLOGY DEVELOPMENT Co Ltd ZHEJIANG
Current assignee: Zhejiang Dean Technology Co., Ltd.
Priority date: 2005-04-29
Filing date: 2005-04-29
Publication date: 2006-05-24
Anticipated expiration: 2015-04-29

Abstract

The utility model relates to a filtering material stopping device for a fiber filtering tank. The utility model comprises a filtering net plate (1) which is provided with dense strip slits (12), and each of the gaps between the strip slits (12) is slightly smaller than the diameter of the head part of each of the fiber filtering materials. The filtering net plate (1) is formed by that a plurality of small filtering net plates (11) are spliced together, and each of the gaps between the small filtering net plates is not greater than the diameter of the head part of each of the fiber filtering materials. The utility model has the advantages that the filtering net plate provided with the dense strip slits enables water to flow through a filtering tank normally at the time of filtering and backwashing, the loss of the fiber filtering materials is effectively prevented because the fiber filtering materials always stay in the middle of a filtering layer as a result of the stop of the filtering net plate, the utility model can be applied to filteringing tanks with different sizes at the time of practical application because the filtering net plate is formed by that a plurality of small filtering net plates are spliced together and the utility model is flexible and is suitable for practical application. The utility model is fully combined with the characteristics of the fibering filtering materials so that the utility model also has the advantages of simple structure and firm fixation.

Description

A kind of retaining filtrate device that is used for fibrous filtering pool

Technical field

The utility model relates to a kind of technical field of filtering ponds, relates in particular to a kind of being used for the retaining filtrate device of fiber filtering as the filtering ponds of filtering layer.

Background technology

In fields such as town water supply processing, industrial water supply processing, industrial cycle water treatment, sewage disposal, filtration is a crucial handling process, is the link that makes a final check of removing suspension in the water.The most frequently used facility is various forms of filtering ponds at present, it generally is made up of filtering ponds pond body, filtrate filtering layer, filtrate bearing device and water dispensing apparatus of being used for the backwash filtrate etc., filtrate generally adopts quartz sand or anthracite, the common issue with that such filtering ponds exist is that filtering velocity is lower, be 8-14m/s, and filtering accuracy and pollutant holding capability are also undesirable.Therefore some filtrates that can improve the rate of filtration and precision are invented, as the patent No. is the Chinese utility model patent " comet type fibrous filter " of ZL98249298.7 (publication number is CN2345267Y), this fiber filtering is the fibre bundle of the comet shape of a kind of intelligent nuclear and comets tail composition, its intelligent nuclear proportion is greater than comets tail, good filtration effect, and during backwash, comets tail can be swung with backwashing water, has strengthened backwash effect.

And adopt the filtering ponds of this fiber filtering, if the device of keeping out at this fiber filtering is not set, in filtration and backwash process, filtrate just very easily runs off, and is a kind of filtering ponds that adopt fiber filtering the Chinese utility model patent " fibrous filtering pool " of ZL 99248788.9 (publication number is CN2401251Y) discloses as the patent No..This fibrous filtering pool is when filtering former water, water purification after filtering directly flows into the air water chamber by following porous plate, because of the filtering layer bottom does not have the keep out device of setting at fiber filtering, filtrate very easily falls into down porous plate with water purification, not only filtrate very easily runs off, and long porous plate down of time one stops up easily, then cause the filtering ponds can't operate as normal, this fibrous filtering pool is when backwash, directly wash fiber filtering from porous plate under the backwash G﹠W process of air water chamber, fiber filtering rolls in the filtering layer space, because of the filtering layer top does not have the keep out device of setting at fiber filtering, very easily be backwashed water and bring the backwash rhone into, fiber filtering runs off very serious.

Summary of the invention

Technical problem to be solved in the utility model is that a kind of retaining filtrate device that is used for fibrous filtering pool that can prevent effectively that fiber filtering runs off is provided at above-mentioned prior art present situation.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: the retaining filtrate device that this is used for fibrous filtering pool, it is characterized in that including a sieve plate, and it is provided with intensive bar seam, and the gap of bar seam is slightly less than the diameter of fiber filtering head.

Described sieve plate generally just is fixed on around the filtering ponds pool wall, its size needs and filtering ponds match, consider the practical application of sieve plate, make sieve plate can be applicable to the filtering ponds of different sizes, this retaining filtrate device can little sieve plate be spliced by the polylith of ready-made certain specification, and such as 497mm * 330mm specification, and the gap between every little sieve plate is good with the diameter that is not more than the fiber filtering head, generally be not more than 2mm, thereby prevent that fiber filtering from flowing out between little sieve plate.

For making be connected between described little sieve plate and filtering ponds pool wall and the every little sieve plate more firm, the following L-shaped angle steel in cross section that can be fixed with all around of described little sieve plate supports, being connected to each other that the angle steel of adjacent two little sieve plate below it supports is connected as a single entity, and the little sieve plate adjacent with the filtering ponds pool wall, angle steel below it supports the bottom and can be connected with the L-shaped ring angle steel in a cross section, and this encircles angle steel and then is connected with built-in fitting on the filtering ponds pool wall;

Wherein, described little sieve plate can be that the PP material is injection molded, angle steel supports and can pass through M12 * 50 stainless steel bolts and the fastening one of little sieve plate, adjacent two angle steel support be welded as full weld, and the gap between angle steel support and the filtering ponds pool wall is preferably filled up with cement mortar.

The above-mentioned retaining filtrate device that is used for fibrous filtering pool can be applied in the top and the bottom of fiber filtering filtering layer, thoroughly prevents the loss of fiber filtering when filtration and backwash.

Compared with prior art, the utility model advantage is: this sieve plate that is provided with intensive seam makes filtering ponds when filtration and backwash, current can both normally circulate, and fiber filtering can be trapped in the middle of the filtering layer because of keeping out of sieve plate all the time, especially when backwash, filtrate fully expands, the rinsing of rolling up and down in whole filtering layer, because keeping out of the sieve plate at fiber filtering filtering layer top, and effectively prevented the loss of fiber filtering; And this sieve plate, can adapt on the filtering ponds of different sizes during practical application by the splicing of the little sieve plate of polylith, and is very flexible, is more suitable for practical application, and easy to implement.The utility model fully combines the characteristics of fiber filtering, and is simple in structure, fixed, easy to implement.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 be among Fig. 1 A-A to cutaway view;

Fig. 3 be among Fig. 1 B-B to cutaway view.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As Fig. 1～shown in Figure 3, this is used for the retaining filtrate device of fibrous filtering pool, be one to be fixed on the sieve plate 1 around the filtering ponds pool wall, be spliced by the little sieve plate 11 of polylith of certain specification, such as 497mm * 330mm specification, little sieve plate 11 is provided with intensive bar seam 12, the gap of bar seam 12 is slightly less than the diameter of fiber filtering head, can be taken as 2mm, its through-hole rate 〉=30%, and the gap between every little sieve plate 11 also is slightly less than the diameter of fiber filtering head, also can be taken as 2mm;

Connect one between the described little sieve plate 11 in the following way: the following L-shaped angle steel in cross section that is fixed with all around of described little sieve plate 11 supports 2, being connected to each other of angle steel support 2 of adjacent two little sieve plate 11 below it is connected as a single entity, and the little sieve plate 11 adjacent with filtering ponds pool wall 7, angle steel below it supports the L-shaped ring angle steel 5 in 2 bottoms and a cross section and is connected, and 5 in this ring angle steel is connected with built-in fitting 4 on the filtering ponds pool wall 7;

Wherein, described little sieve plate is that the PP material is injection molded, angle steel supports 2 can pass through M12 * 50 stainless steel bolts 3 and little sieve plate 11 fastening one, and adjacent two angle steel support 2 the full weld that is welded as, and the gap between angle steel support 2 and the filtering ponds pool wall 7 is filled up with cement mortar 6.

Claims

1, a kind of retaining filtrate device that is used for fibrous filtering pool is characterized in that: include a sieve plate (1), it is provided with intensive bar seam (12), and the gap of bar seam (12) is slightly less than the diameter of fiber filtering head.

2, the retaining filtrate device that is used for fibrous filtering pool according to claim 1, it is characterized in that: described sieve plate (1) is spliced by the little sieve plate of polylith (11), and the gap between the every little sieve plate (11) is not more than the diameter of fiber filtering head.

3, the retaining filtrate device that is used for fibrous filtering pool according to claim 2, it is characterized in that: the following L-shaped angle steel in cross section that is fixed with all around of described little sieve plate (11) supports (2), and the angle steel of adjacent two little sieve plate (11) below it supports being connected to each other of (2) and be connected as a single entity.

4, the retaining filtrate device that is used for fibrous filtering pool according to claim 3, it is characterized in that: the described little sieve plate (11) adjacent with filter chamber's pool wall (7), angle steel below it supports the L-shaped ring angle steel (5) in (2) bottom and a cross section and is connected, and this encircles angle steel (5) and then is connected with built-in fitting (4) on filter chamber's pool wall (7).