JPH0448907A - Filter plate structure of filter press - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a filter plate structure of a filter press used for solid-liquid separation of various sludges and slurries.

Conventional technology Traditionally, filter presses used for solid-liquid separation of various types of sludge and slurry have a filter cloth arranged on the front and back sides of a flat filter plate, and each filter plate is overlapped and tightened, and the filter press is suspended by a pump. The turbid liquid is pumped between each filter cloth, and the residue or cake filtered by the filter cloth is retained between the filter cloths, and the filtrate that has passed through the filter cloth is discharged to the outside through the drain hole opened on the surface of the filter plate. It was something to do.

Problems to be Solved by the Invention However, since the filter plate of a conventional filter press is a flat plate, the size of the filter plate and the size of the filter cloth that can be placed in the filter holder are approximately the same. It has been difficult to simultaneously increase the area and downsize the filter press.

The present invention solves the above problems, and aims to provide a filter plate structure for a filter press that can reduce the size of the filter plate and increase the area of the filter cloth.

Means for Solving the Problems In order to solve the above problems, the present invention has a structure in which a filter plate, on which filter cloths are arranged on the front and back sides, is formed in a curved manner.

Effect With the above-described configuration, since the filter plate has a curved surface, the area of the filter cloth arranged along the front and back surfaces of the filter plate becomes larger than the projected area of the filter plate on a plane. Therefore, the area of the filter cloth can be increased compared to a conventional flat filter plate having the same projected area. Moreover, if the filter cloth area is made equal to the conventional size, the size of the filter plate can be reduced.

EXAMPLE An example of the present invention will be described below based on the drawings. 1st
In the figures to FIG. 2, a plurality of filter plates 1 are arranged one on top of the other, and each filter plate 1 is formed in a curved manner.
Four parts 2 are formed on the front and back sides of the curved surface part. Further, a liquid feeding hole 5 for supplying the suspension 4 is provided in the peripheral edge 3 of the filter plate 1.
is formed to penetrate in the front and back directions, and a groove 6 is formed so as to communicate the liquid feeding hole 5 and the recess 2. moreover,
A drain hole 7 is formed in the peripheral edge 3 of the filter plate 1, with one end opening into the surface of the recess 2 and the other end opening into the peripheral side of the filter plate 1.

A filter cloth 8 is disposed on the filter plate 1 to cover the recesses 2 on the front and back sides, and during use, each filter plate 1 is pressed against each other at the peripheral edge 3 by a tightening device (not shown). established in

The operation of the above-mentioned configuration will be explained below.

The suspension 4 that is force-fed to the liquid feeding hole 5 by the pump flows through the groove 6.
A permeated liquid 9 flows between each filter plate 1 and permeates through the filter cloth 8.
is discharged to the outside through the drain hole 7, and the residue, that is, cake, filtered by the filter cloth 8 adheres to the surface of the filter cloth 8.

At this time, since the filter plate 1 has a curved surface, the filter plate 1
The area of the filter cloth 8 arranged along the front and back surfaces of the filter plate 1 is larger than the projected area of the filter plate 1 on a plane.

Therefore, the area of the filter cloth is increased compared to a conventional flat filter plate having the same projected area, and if the area of the filter cloth is made equal to the conventional size, the size of the filter plate 1 can be reduced.

Effects of the Invention As described above, according to the present invention, by forming the filter plate in a curved manner, the area of the filter cloth arranged along the front and back surfaces of the filter plate can be made larger than the projected area of the filter plate on a plane. can do. Therefore, compared to a conventional flat filter plate with the same projected area, the filter cloth area can be increased, and if the filter cloth area is made equal to the conventional size, the filter plate can be reduced, so the filter press can be made smaller.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view of a filter plate showing an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of the filter plate in the same embodiment. 1...filter plate, 2...recess, 8...filter cloth.

Claims (1)

[Claims] 1. A filter plate structure for a filter press characterized by a curved filter plate on which filter cloths are arranged on the front and back sides.