CN201744208U

CN201744208U - Compressible filter plate

Info

Publication number: CN201744208U
Application number: CN2010202846977U
Authority: CN
Inventors: 张国清; 李新荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-09
Filing date: 2010-08-09
Publication date: 2011-02-16
Anticipated expiration: 2020-08-09

Abstract

The utility model discloses a compressible filter plate, which is mainly used for a filter press for treating sludge. The compressible filter plate comprises a middle plate; a supporting frame is installed on the middle plate; the middle plate is connected with a liner plate and a filter frame at the same time; the filter frame comprises two frame plates, and a spring is arranged between the two frame plates. The compress pressure provided by the compressible filter plate is high and can reach 4MPa; the pressing effect is significant; the pressing pressure provided by the compressible filter plate can lead the water contain rate of the mud cake to reach 50%. Meanwhile, the liner plate only bears pressure, so the service life is long.

Description

Compressible filter plate

Technical field

The utility model relates to the filter press that is used for Treatment of Sludge, relates in particular to the filter plate of filter press.

Background technology

Filter plate described in the utility model is the core component of filter press, the general filter cloth that cooperates uses, it mainly acts on is that mud is squeezed, water in the mud is flowed out by filter cloth, mud is compressed into the mud cake shape simultaneously, obviously, for the moisture content that makes mud cake is low as far as possible, filter plate is high more good more to the pressure of mud.Except the routine squeezing, prior art generally further drains filter cake by following dual mode:

1. utilization compressed air or steam utilizes air-flow to wash away moisture in the filter cake, to reduce the moisture content of filter cake.Its shortcoming is that the pressure of air-flow generation is lower, generally is no more than 0.8Mpa.

2. diaphragm pressing, its squeeze pressure that provides can reach 1.6Mpa, receive the pulling force effect but shortcoming is a filter plate, and the main material of filter plate is a polypropylene, and the stretch-proof ability is fragile.The utility model of patent No. ZL200820161432.0 discloses a kind of diaphragm filter board of filter press, its principal character is that central layer is connected by screw with squeeze diaphragm, when one of central layer or squeeze diaphragm damage, removable replacing separately down, reduce cost, but fundamentally do not solved the flimsy problem of filter plate.

Summary of the invention

The utility model is studied and is improved at the prior art above shortcomings, and a kind of compressible filter plate is provided, squeeze effective, long service life.

In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:

The utility model comprises middle plate, and middle plate is equipped with bracing frame, and middle plate connects liner plate simultaneously, and liner plate connects filter frame, and filter frame is made up of two deckle boards, between these two deckle boards spring is set.Be characterised in that further described two deckle boards connect by lead.

Technique effect of the present utility model is: the squeeze pressure height that compressible filter plate provides, can reach 4Mpa, the squeezing effect is remarkable, and the moisture content of the cake of prior art is generally about 80%, and squeeze pressure of the present utility model can make the moisture content of mud cake can reach 50%.The effect because liner plate only is under pressure simultaneously, long service life.

Description of drawings

Fig. 1 is the structural representation of compressible filter plate;

Fig. 2 is the combination schematic diagram of two filter plates;

Fig. 3 is the left view of Fig. 1;

Fig. 4 is the structural representation of filter press.

The specific embodiment

See Fig. 1, plate 8 during the utility model (being called for short filter plate down) comprises, two bracing frames 4 about middle plate 8 is provided with, middle plate 8 left and right sides bolt respectively are connected with liner plate 6 and liner plate 3, liner plate 6 is connected with deckle board 7 simultaneously, deckle board 7 and the deckle board 2 common formation filter frames that are positioned at liner plate 3 right sides.See Fig. 1, Fig. 3, four jiaos of deckle board 7 and deckle board 2 have pilot hole 13, and by lead 5 pin joints, uniform some springs 1 that have between deckle board 7 and the deckle board 2, the two ends of spring 1 are connected with deckle board 7 and deckle board 2 respectively, and the quantity of spring 1 and type selecting can be equipped with flexibly according to required pressure.

See Fig. 4, filter plate is connected with the rack rail (not expressing among the figure) of filter press 13 by two bracing frames 4, and each filter plate is series model and arranges the filter plate of high order end and thrust plate 12 butts, during filter press 13 work, pressure strip 11 promotes to compress each filter plate by hydraulic mechanism.The concrete operation principles of filter press 13 is the known technology of this area, and this specification slightly.

The two sides of liner plate 3 and liner plate 7 are provided with filter cloth 9 respectively, and pipeline 10 is communicated with filter cloth 9, and liner plate 3 and liner plate 7 adopts and increase polypropylene materials and makes, and acid and alkali-resistance, have a good pressure resistance energy simultaneously.See Fig. 2, form filter chamber 14 between two adjacent filter plates, filter chamber 14 is between the liner plate 3 of the liner plate 7 of left part filter plate and right part filter plate, and by filter cloth 9 sealings, pending mud is pumped in each filter chamber 14 by pipeline 10, mud in 3 pairs of filter chambers of liner plate 7 and filter plate 14 squeezes, and the water of separating is discharged downwards by filter cloth 9.In the expressing process, pressure strip 12 directly acts on coupled deckle board, and pressure is passed to each filter plate, and spring 1 is received compression, also further pressure is provided for liner plate 6 by deckle board 7 simultaneously, has improved the squeezing effect.Because the effect of lead 5, deckle board 3 and deckle board 7 are not offset because spring 1 compression still can the holding position when producing relative motion, have guaranteed the squeezing effect.

The material of filter cloth 9 can be selected materials such as terylene, polyvinyl, polyamide fibre, polypropylene fibre for use according to sludge nature, and the characteristic of above-mentioned material can see table 1:

Table 1

	Terylene	Polyvinyl	Polyamide fibre	Polypropylene fibre
					Acid resistance	Well	Well	Relatively poor	Well
Alkaline resistance properties	Medium under the room temperature	Well	Well	Well
					Heat resistance	150℃	100℃	130℃	90℃
Softening point	238℃-240℃	220℃-230℃	180℃	145℃-165℃

Claims

1. compressible filter plate comprises middle plate, and middle plate is equipped with bracing frame, and middle plate connects liner plate simultaneously, and described liner plate connects filter frame, it is characterized in that described filter frame is made up of two deckle boards, between these two deckle boards spring is set.

2. compressible filter plate according to claim 1 is characterized in that described two deckle boards connect by lead.