CN88200832U

CN88200832U - Plate frame of filter press for separating solid and liquid

Info

Publication number: CN88200832U
Application number: CN 88200832
Authority: CN
Inventors: 朱兴源
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-01-15
Filing date: 1988-01-15
Publication date: 1988-11-09

Abstract

The utility model relates to a polypropylene filter press plate frame which is mainly used for solid-liquid separation of suspension. The section shape of the contacting surface of the periphery of the existing filter press plate frame is in a rectangle, and the sealing effect is poor. The rectangular section of the utility model is changed into a cross section like the Chinese character 'gong' or an inner concave circular arc cross section. Under the same clamping force condition, the pressure is increased due to the diminishing of contact area, so the sealing effect among the plate frames are improved. At the same time, material used of a plate frame is more economical.

Description

Plate frame of filter press for separating solid and liquid

The utility model relates to a kind of improvement of filter press sheet frame, belongs to chemical industry, and departments such as environmental protection make solid-liquid suspension two device for phase saparation.

In the prior art, the sheet frame kind that is used for department's solid-liquid two device for phase saparation such as chemical industry environmental protection is more, uses polypropylene rectangle sheet frame more generally, because filter press inner chamber operating pressure is higher, require to seal between the filter press sheet frame, the sheet frame of prior art as shown in Figure 1 and Figure 2.It is the square-section that the connecing of sheet frame periphery joined face, connect that to join the face contact area bigger, guarantee that the required clamping force of sealing is also bigger, at the special-shaped filter press sheet frame described in the patent of invention of Chinese invention patent application number 87106060, though problems such as the moulding process of solution sheet frame and intensity, but sheet frame touches the plane indirectly still is rectangle, still there is the required bigger problem of clamping force of sealing, though can between the sheet frame contact-making surface, embed encapsulant, still encapsulant may not adapt to working media, exists corrosion and durability not high two big deficiencies.

Task of the present utility model is to overcome existing above-mentioned deficiency in the prior art, and provides between a kind of sheet frame the contact plane little, and the filter press sheet frame that the also small and dense sealing property of required clamping force is good is used material economy to reach, the purpose of good seal performance.

The utility model proposes of task is to finish by following technical proposal.The utility model reduces the peripheral contact plane of sheet frame, adopt I-shaped cross-section or other similar cross sectional shape, under identical clamping force condition, because contact area reduces, contact plane pressure between sheet frame increases, and has improved the sealing effectiveness between sheet frame, and certain this sealing effectiveness is directly related with the form tolerance of sheet frame, as the flatness of sheet frame contact plane, and the depth of parallelism of sheet frame two contact planes etc.

The accompanying drawing drawing is described as follows:

Fig. 1 is existing filter press sheet frame schematic diagram.

Fig. 2 is existing filter press sheet frame contact plane schematic cross-section.

Fig. 3 is the utility model sheet frame schematic diagram.

Fig. 4 is that the utility model sheet frame contact plane is the schematic diagram of i shaped cross section.

Fig. 5 is that the utility model sheet frame contact plane is the schematic diagram of indent circular cross-section.

Such as Fig. 3～sheet frame cross section shown in Figure 5, go for the filter press frame of various materials, such as cast iron or polypropylene, but use to get most often polypropylene rectangular plate-and-frame, with polypropylene granules and glass fibre, calcium carbonate, auxiliary agent, extrude through plasticizing, put into the sheet frame die cavity, because mould is designed to required i shaped cross section or indent circular cross-section, cross sectional shape through hot-forming sheet frame periphery contact plane is I shape 1 or interior concave arc 2, also can embed closed ring metal wire rod reinforce to improve filter press frame comprehensive mechanical intensity when moulding.

The utility model compared with prior art has following advantage: good seal performance between the filter press frame, and can save raw material, and reduce sheet frame and connect the machining amount of joining face, its economic benefit is comparatively obvious.

Claims

1, a kind of filter press sheet frame, especially a kind of polypropylene filter press sheet frame mainly contains polyolefin, calcium carbonate, glass fibre and auxiliary agent, through hot-forming, it is characterized in that: the cross sectional shape of sheet frame contact plane is an i shaped cross section 1.

2, filter press sheet frame as claimed in claim 1 is characterized in that: i shaped cross section 1 can be substituted by indent circular cross-section 2.