CN2579496Y

CN2579496Y - Self discharged slag liquid filter

Info

Publication number: CN2579496Y
Application number: CN 02258233
Authority: CN
Inventors: 刘辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-31
Filing date: 2002-10-31
Publication date: 2003-10-15
Anticipated expiration: 2012-10-31

Abstract

The utility model relates to a liquid filtering device, particularly a self discharged slag liquid filter. A filter net is arranged in an inner cavity of a casing of the utility model, and the inner cavity of the casing is divided into a liquid inlet cavity and a liquid outlet cavity by the filter net. The liquid inlet cavity and the liquid outlet cavity are respectively communicated with a liquid inlet and a liquid outlet. In addition, a slag sucking nozzle is arranged in the liquid inlet cavity, the slag sucking nozzle is through to the outer part of the casing through a slag discharging pipe, an opening of the slag sucking nozzle approaches to the surface of the filter net, a gap is arranged between the opening of the slag sucking nozzle and the filter net, and the size of the gap is corresponding to the thickness of a granule of filter slag. The utility model can automatically eliminate filter slag on the filter net in a filter process, simultaneously, the utility model does not need additional energy, and manual cleaning and maintenance can be reduced.

Description

From the deslagging liquid filter

Technical field

The utility model relates to a kind of sedimeter, and is particularly a kind of from the deslagging liquid filter.

Background technology

The present common filter that is used for Separation of Solid and Liquid; the filter of special filter net type; in liquid filtering because deposition, the absorption of solid matter on filter screen; finally cause filter pressure to raise; flow reduces and lost efficacy; usually adopt measures such as shutting down cleaning, replacing or recoil cleaning to solve, its maintenance process is extremely bothered.

Summary of the invention

Technical problem to be solved in the utility model is, a kind of filter residue that can get rid of voluntarily in filter process on the filter screen is provided, do not need external energy simultaneously, reduce artificial clean and maintenance from the deslagging liquid filter.

Of the present utility modelly include a housing from the deslagging liquid filter, in the housing inner chamber, there is a filter screen that the housing inner chamber is divided into admission chamber and goes out sap cavity, admission chamber and go out sap cavity and communicate with inlet and liquid outlet respectively, in addition, a slag sucking nozzle is arranged in admission chamber, slag sucking nozzle leads to by a scum pipe beyond the housing, and the opening of described slag sucking nozzle also and between the filter screen has a gap near screen surface, and the size in gap is corresponding with the grain thickness of filter residue.

On above-mentioned technical scheme basis, described slag sucking nozzle is installed in the rotating shaft, slag sucking nozzle can also be equipped with a drives impeller along with the inswept whole filtering net of the rotation of rotating shaft surface in rotating shaft, the blade of drives impeller is positioned on the feed liquor direction of inlet.

On above-mentioned technical scheme basis, described housing and filter screen constitute a sleeve-like configuration, and promptly filter screen is a cylindrical shape coaxial with housing, and the filter screen inner chamber is an admission chamber, between filter screen and the housing for going out sap cavity.

The utility model in use, because slag sucking nozzle and scum pipe communicate with ambient atmosphere, pressure in it is less than the pressure in the admission chamber, filter residue on the filter screen can be at any time along with a spot of liquid is inhaled into slag sucking nozzle, be discharged to extraneous detritus tank, thereby can not produce accumulation, need not frequent clean and maintenance, and whole slag removal need not additionaling power, finishes automatically.Simultaneously, in the slag absorbing process, slag sucking nozzle does not contact with filter screen, can not produce wearing and tearing.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of an embodiment of the utility model;

Fig. 3 is the A cross-sectional view of Fig. 2;

Fig. 4 is the structural representation of another embodiment of the utility model;

Fig. 5 is the B cross-sectional view of Fig. 4.

The specific embodiment

As Fig. 1, Fig. 2 and shown in Figure 4, should in housing 1 inner chamber of deslagging liquid filter, there be a filter screen 2 that the housing inner chamber is divided into admission chamber 3 and goes out sap cavity 4, admission chamber and go out sap cavity and communicate with inlet 5 and liquid outlet 6 respectively, a slag sucking nozzle 7 is arranged in admission chamber, slag sucking nozzle leads to beyond the housing by scum pipe 8, the opening of slag sucking nozzle 7 also and between the filter screen has a gap near filter screen 2 surfaces, and the size in gap is corresponding with the grain thickness of filter residue.

In Fig. 2 and embodiment shown in Figure 3, slag sucking nozzle 7 is installed in the rotating shaft 9, a drives impeller 10 also is installed in rotating shaft, the blade of drives impeller is positioned on the feed liquor direction of inlet 5, drives impeller is driven by flowing liquid, and then can drive rotating shaft 9 and slag sucking nozzle 7 rotates thereupon, make the whole surface of the inswept filter screen 2 of slag sucking nozzle.

In Fig. 4 and embodiment shown in Figure 5, housing 1 and filter screen 2 constitute a sleeve-like configuration, the inner chamber of tubular filter screen is an admission chamber 3, between filter screen and the housing for going out sap cavity 4, the rotating shaft 9 that slag sucking nozzle 7 is installed is coaxial with the filter screen of tubular, along with the rotation of rotating shaft, the cylindrical internal surface of the inswept filter screen of slag sucking nozzle.

Claims

1, a kind of from the deslagging liquid filter, include a housing (1), in the housing inner chamber, there is a filter screen (2) that the housing inner chamber is divided into admission chamber (3) and goes out sap cavity (4), admission chamber and go out sap cavity and communicate with inlet (5) and liquid outlet (6) respectively, it is characterized in that: a slag sucking nozzle (7) is arranged in admission chamber, slag sucking nozzle leads to beyond the housing by a scum pipe (8), the opening of described slag sucking nozzle (7) also and between the filter screen has a gap near the surface of filter screen (2), and the size in gap is corresponding with the grain thickness of filter residue.

2, according to claim 1 from the deslagging liquid filter, it is characterized in that: described slag sucking nozzle (7) is installed in the rotating shaft (9), slag sucking nozzle can be along with the surface of the inswept whole filtering net of the rotation of rotating shaft (2), a drives impeller (10) also is installed in rotating shaft, and the blade of drives impeller is positioned on the feed liquor direction of inlet (5).

3, according to claim 1 and 2 from the deslagging liquid filter, it is characterized in that: housing (1) and filter screen (2) constitute a sleeve-like configuration, that is, filter screen (2) be one with the coaxial cylindrical shape of housing (1), the filter screen inner chamber is admission chamber (3), between filter screen and the housing for going out sap cavity (4).