CN202844707U

CN202844707U - Backwash filter with low residual liquid content

Info

Publication number: CN202844707U
Application number: CN 201220455626
Authority: CN
Inventors: 赵坤念
Original assignee: YNT PETROCHEMICAL MACHINERY EQUIPMENT CO Ltd
Current assignee: YNT PETROCHEMICAL MACHINERY EQUIPMENT CO Ltd
Priority date: 2012-09-07
Filing date: 2012-09-07
Publication date: 2013-04-03
Anticipated expiration: 2022-09-07

Abstract

The utility model relates to a backwash filter with low residual liquid content. An inlet and an outlet are respectively arranged at two opposite sides at the lower part of a shell; a drain outlet is arranged at the bottom of the shell; during filtration, a solution flows from bottom to top and flows out of the outlet after being filtered; during backwash, residual liquid in the shell can be lower than the positions of the inlet and the outlet due to the form of entering and exiting at the bottom, so that secondary treatment is not needed; when the blocked impurities fills an end enclosure under the inlet and the outlet, the solution stored in the end enclosure is further reduced, and thus, the water content of the impurities discharged from the drain outlet is remarkably reduced; branch pipes, a main pipe and the other main pipe are formed into an integrated structure through a casting process, and filter elements are vertically fixed on the branch pipes through sealing gaskets, so that the distance between every two filter elements is kept effectively within the design range, and the backwash filter is more convenient in installation and maintenance; and an optimized filter element arrangement way is adopted, so that the backwash medium can be effectively saved and the backwash effect can be improved during backwash.

Description

Low raffinate backwash filter

Technical field:

The utility model relates to filter, particularly a kind of low raffinate backwash filter.

Background technology:

Backwash filter is a multi-purpose type automatic back flush filtration system, for separating of the solid particle in liquid or the gas.Filter adopts high-precision filter element and assembly, places in the drum ladle.In petrochemical industry, pharmacy, fine chemistry, water treatment field, backwash filter effectively the improving material quality, prevent that rear end equipment from stopping up, reduce frequently manual switching operation and heavy cleaning filter work, avoid unnecessary shut-down.Traditional backwash filter is still remaining to be improved aspect filter efficiency and the reduction operating cost, as shown in Figure 1, the top of housing (10) is located in outlet (30), when backwash, after (30) closed with import (20) and outlet, housing left tank solution in (10), and just need carry out after-treatment to residual solution and particle, this has just reduced filter efficiency, has increased simultaneously operating cost; Secondly, the filter core of existing filter adopts the lifting fixed form, as shown in Figure 2, filter core (50) is fixed on the floral disc (100) by gasket seal (80) and nut (90), this mounting means so that air and clean water when backwash, can not be with backwash medium reasonable distribution to each filter core, for filter element cleaning totally being consumed useless large quantity of air, water and backwash time.

The utility model content:

The utility model provides the low raffinate backwash filter that a kind of filter efficiency is high, operating cost is low and be convenient to install for the deficiency of above technology.

To achieve these goals, the utility model proposes following technical scheme realizes:

Low raffinate backwash filter, by shell, import, outlet, sewage draining exit, filter core, be responsible for, be in charge of, arm forms; It is characterized in that: import and outlet are separately positioned on two opposite sides of outer casing underpart, sewage outfalls setting is in outer casing bottom, supervisor, be in charge of with arm and be cast as on the inwall that integral structure is fixed in outer casing underpart, and supervisor links to each other with outlet, and filter core vertically is fixed on the arm by gasket seal.

The soluble technical problem of the utility model is:

1. outlet is located at the lower housing portion side, the solution that remains in the housing is lower than the import and export position, need not carry out after-treatment when backwash, has reduced operating cost in the time of the Effective Raise filter efficiency; Secondly, when the impurity of tackle fills up when importing and exporting lower end socket, the solution that is stored in the end socket further reduces, and finally the solid water content of discharge is extremely low.

2. will be in charge of, be responsible for and be responsible for by casting technique forming integral structure, filter core vertically is fixed on the arm by gasket seal, can effectively guarantee spacing between filter core and the filter core in scope of design, and installation and maintenance are all convenient; And the filter core arrangement mode of optimizing can effectively be saved the backwash medium and improve the backwash effect when backwash.

Description of drawings:

Fig. 1 is the structural representation of prior art;

Fig. 2 is the filter core scheme of installation of prior art;

Fig. 3 is structural representation of the present utility model;

Fig. 4 is filter core scheme of installation of the present utility model;

Fig. 5 is supervisor of the present utility model and is in charge of connection diagram;

Fig. 6 is A-A cutaway view among Fig. 3;

The specific embodiment:

As shown in Figure 3, low raffinate backwash filter, by shell 1, import 2, outlet 3, sewage draining exit 4, filter core 5, supervisor 6, be in charge of 7 and arm 9 form; Import 2 and outlet 3 are separately positioned on two opposite sides of shell 1 bottom, and sewage draining exit 4 is arranged at shell 1 bottom, are in charge of 7, arm 9 and be responsible for 6 and be cast as on the inwall that integral structure is fixed in shell 1 bottom, and filter core 5 vertically is fixed on the arm 9.During filtration, solution enters from import 2, from bottom to top flow, by flowing out from exporting 3 after the filtration of filter core 5, the impurity that is attached to this moment on the filter core 5 needs backwash thoroughly to clean, close import 2 and outlet 3, the Liquid Residue in the housing 1 enters the position that form that the end goes out can be lower than import 2, outlet 3 end of because of; When the lower impurity of interception filled up end socket under import 2, the outlet 3, the solution that is stored in the end socket further reduced, and the water content from the impurity of sewage draining exit 4 discharges obviously reduces like this.

Such as Fig. 4, Fig. 5 and shown in Figure 6, will be responsible for 6 and be in charge of 7, arm 9 adopts casting techniques to form integral structures, effectively reduces the skew and the distortion that produce because of welding; And 5 need of filter core directly are fixed on the arm 9 by gasket seal 8, and are relatively simple for structure, and installation and maintenance is also more convenient; Adopt the multitube arrangement to optimize the filter core arrangement mode, when backwash, can effectively save the backwash medium and improve the backwash effect.

Claims

1. low raffinate backwash filter, by shell, import, outlet, sewage draining exit, filter core, be responsible for, be in charge of, arm forms; It is characterized in that: import and outlet are separately positioned on two opposite sides of outer casing underpart, sewage outfalls setting is in outer casing bottom, supervisor, be in charge of with arm and be cast as on the inwall that integral structure is fixed in outer casing underpart, and supervisor links to each other with outlet, and filter core vertically is fixed on the arm by gasket seal.