JPH0446802Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a novel filter in which a large number of straight, minute width filter holes can be easily arranged side by side with high precision using engagement means.

[Conventional technology]

Conventionally, this type of filter has been made by welding filter wire rods one by one and arranging them in parallel to form a large number of linear filter holes, or by cutting the back side of a plate-shaped body to form a large number of filter holes. It was manufactured by forming straight filtration holes.

[The problem that the idea aims to solve]

By the way, in the case of the above-mentioned filter, the linear filter holes are formed by welding or cutting the filter wire, which is time-consuming and makes it difficult to form highly accurate and uniform filter holes. The problem was that I couldn't get it.

[Means to solve the problem]

This invention was developed with attention to the points mentioned above, and is characterized in that the filter wire rod can be easily attached to the porous plate-like body by means of engagement means.

That is, this invention arranges a large number of straight filter wire rods with a constant cross section in a plate-like body in which a large number of through holes are bored through engaging protrusions that project from the lower part of the filter wire rods. The present invention relates to a filter characterized in that the filter is engaged and fixed along a large number of linear cut grooves provided therein, and has a large number of linear filtration holes formed between adjacent filter wire rods.

[Effect]

A plate-like body in which a large number of straight filter holes are formed by connecting filter wire rods in parallel is arranged in the middle of a pipe line through which the desired fluid to be filtered flows, and moreover, one or more of the required number can be used in series. Offered. Furthermore, the filter can be installed in the pipe in a so-called closed state perpendicular to the flow, but it can also be placed in an open state parallel to the flow.

In this open state, the filtered processing fluid is passed to the secondary side leaving the filter scum behind, but the filtration scum is collected on the downstream side of the primary side and can be disposed of.

By changing the filtration size of two or more filters in stages, the filtration action can also be carried out in stages and efficiently.

〔Example〕

Examples of this invention will be described below with reference to the drawings.

First, an embodiment of this invention will be described with reference to FIGS. 1 to 5.

1 shows a filter wire rod having a triangular cross section and a constant linear shape, and this wire rod 1 has engaging protrusions protruding along the tips of both slopes Q and Q on the opposite side of the flat top surface P. 2. 3 is a plate-like body having a large number of through holes 4 and cut grooves 5 at regular intervals for engaging the engaging protrusions 2. Reference numeral 6 indicates a filter hole that can be formed between adjacent filter wires 1, and can be formed with high precision on the order of microns to millimeters.

Therefore, the width of the flat top surface P of the filter wire 1 cannot be larger than the length between adjacent kerfs 5 due to the structure.

By the way, the engaging protrusion 2 and the cut groove 5 with which this protrusion 2 engages must be precisely processed and finished as shown in the figure, so that the tops between adjacent filter wires 1 can be The filter holes 6 can be formed with high precision by keeping the surfaces P on the same plane.

Further, the through hole 4 is preferably bored apart from the cut groove 5 as shown in the figure, and furthermore, projecting edges 7, 7 are provided in advance on the upper and lower parts of the plate-like body 3. The structure is such that the same plane as that of the filter wire 1 can be maintained.

Since the configuration is as described above, the plate-shaped body 3 is placed in the pipe line through which the desired liquid to be treated flows, parallel to the flow, and the filter residue in the flowing liquid to be treated is left on the filter wire 1. The processing liquid that has fallen through the filter hole 6 can be taken out to the secondary side, and the filter itself
By arranging a plurality of filtration holes 6 of different sizes in series, the liquid to be treated can be filtered in stages by utilizing the flow.

Since not only the secondary side but also the filter scum removal side can be formed as an open circuit, it is suitable for this type of filtration device.

Next, the embodiments shown in FIGS. 6 to 8 will be described.

This embodiment differs from the previous embodiment mainly in that the engaging protrusion 2a has a protruding shape with a protruding portion 8, and the cut groove 5a is also formed as an enlarged groove portion 9. Since the other components are the same as those in the first embodiment, detailed explanation thereof will be omitted.

However, since the engaging protrusion 2a is provided with a bulging portion 8, the cut groove 2a is bored to penetrate to one end of the plate-like body 3, and the bulging portion 8 is inserted from the penetrating open end 10. The filter wires 1a can be individually inserted and fixed.

This embodiment also exhibits exactly the same effect as the first embodiment and can perform a filtration operation.

Next, in FIG. 9, another cross-sectional configuration of the filter wire is illustrated, where a indicates a filter wire 1b having a circular cross section, and b indicates a filter wire 1c having an inverted trapezoidal cross section.

In either case, the operation is the same as in the previous embodiment, so detailed explanation thereof will be omitted.

[Effect of idea]

According to this invention, the plate and the filter wire are manufactured separately, and the filter wire is provided with an engaging protrusion so that it can be accurately fitted into the cut groove of the plate. As a result, it is possible to form filter holes with extremely high precision, and since it can be easily assembled, it is suitable for low-cost mass production, and has many other effects.

Further, according to this invention, since the filter wire rod has a constant cross section, there is an advantage that a large number of filter wire rods can be efficiently obtained by cutting a long wire rod raw material into a fixed size.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the filter according to this invention, Fig. 2 is a side view of the same, Fig. 3 is a plan view of only the plate-like body, Fig. 4 is a side view of the same, and Fig. 5 is a plan view of an embodiment of the filter according to the invention.
6 is a plan view showing another embodiment; FIG. 7 is a side view of the same; FIG. 8 is an enlarged cross-sectional view of the main parts of the same; FIGS. 9 a and b These are enlarged cross-sectional explanatory views of filter wire rods each having two other different shapes. 1, 1a, 1b, 1c...Wire rod for filter,
2, 2a... Engaging protrusion piece, 3, 3a... Plate body, 4
...through hole, 5, 5a...kerf, 8...bulge,
9...Enlarged groove.

Claims (1)

[Scope of utility model registration request] A large number of linear filter wire rods having a constant cross section are arranged side by side on a plate-like body having a large number of through holes through engaging protrusions protruding from the lower part of the filter wire rods. What is claimed is: 1. A filter characterized in that a large number of linear filter holes are formed between adjacent filter wire rods that are engaged and fixed along the cut grooves of the filter wire rods.