JPH10180146A - Filter apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily attach or detach a filter to and from a basket by arranging the filter along the inner circumferential face of a basket and installing filter pushing body to push a butting part of the filter in the basket in a detachable manner. SOLUTION: A filter 2 comprises a filter body 4 made of a metal net with fine meshes and a sealing body 5 unitedly formed in the circumferential rim of the filter body 4 and is arranged along the inner circumferential face 57 of a basket 50. A filter pushing body 3 to push a butting part of the filter 2 is installed in the basket 51 in a detachable manner. That is, the filer pushing body 3 is installed in a trunk plate 53 of the basket 51 in a detachable manner by installation tools 10 while utilizing dewatering holes 56 of the basket 51 and nuts are fitted by screwing in a proper number of bolts 11 penetrating the dewatering holes 56 by planting in installation pieces. Consequently, the filter 2 can easily be attached and detached to and from the basket 51.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an improvement in a filter device applied to, for example, a basket type centrifuge.

[0002]

2. Description of the Related Art Conventionally, as this type of filter device,
For example, one disclosed in FIGS. 5 and 6 of Japanese Utility Model Laid-Open No. 7-25952 is known. This includes a cylindrical filter disposed along the inner peripheral surface of the basket, an upper and lower annular filter presser provided detachably on the basket and pressing the upper and lower ends of the filter, and each filter presser and the filter. And an upper and lower annular seal body interposed therebetween. Thus, there is no need to cut a groove for inserting the upper and lower ends of the filter into the upper plate and the lower plate of the basket, so that there is an advantage that the manufacture becomes easy.

[0003]

However, in such a device, the filter has to be attached to the basket by using the upper and lower annular filter holding members and the upper and lower annular seal members, so that the attachment is complicated. And the filter could not be easily attached to and detached from the basket. The present invention
In view of the above-mentioned problems, the present invention has been made to solve this problem, and an object of the present invention is to provide a filter device which allows a filter to be easily attached to and detached from a basket.

[0004]

According to the present invention, there is provided a filter device comprising a filter body and a seal body provided integrally with the periphery of the filter body, the filter being arranged along the inner peripheral surface of the basket, and a basket. And a filter presser that is detachably provided on the filter and presses the abutting portion of the filter.

[0005] A filter is arranged along the inner peripheral surface of the basket. The butting portion of the filter is pressed down and attached by a filter retainer removably provided in the basket. The filter is provided with a filter body and a seal body integrally provided on the periphery thereof, so that the filter is pressed against the inner peripheral surface of the basket by centrifugal force during rotation of the basket and is automatically sealed. . Therefore, leakage of solid matter from the periphery of the filter is prevented. Since the seal body is provided integrally on the periphery of the filter body, it does not require much labor for mounting, and the filter can be easily attached to and detached from the basket.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional side view showing a state where a filter device of the present invention is mounted on a basket. FIG.
1 is a perspective view showing a filter device of the present invention. FIG. 3 is a front view showing a filter. FIG. 4 is an enlarged vertical sectional side view of FIG.

[0007] The main part of the filter device 1 is constituted by a filter 2 and a filter retainer 3, and is applied to a basket type centrifugal separator 50.

The centrifugal separator 50 comprises a casing (not shown) and a basket 51 provided inside the casing so as to be rotatable about a longitudinal axis. Basket 51
Has a cylindrical shape with an upper plate 52, a body plate 53, and a bottom plate 54, and an opening 55 is formed in the upper plate 52;
A large number of dehydration holes 56 are formed in the body plate 53, and an inner peripheral surface 57 is formed inside.

The filter 2 includes a filter body 4 and a seal body 5 provided integrally with the periphery of the filter body 4 and is disposed along the inner peripheral surface 57 of the basket 50. In this example, the filter 2 has a cylindrical shape. The filter body 4 has a rectangular plate shape that can be deformed into two, and is divided into two in the circumferential direction. The filter body 4 is integrally lined with the upper and lower edges and the so-called four edges of the left and right edges and has a predetermined thickness and width. And a seal body 5 having a substantially elliptical cross section.

The filter body 4 is of such a size that it is not deformed by its own weight, such as a wire mesh having a sufficiently fine mesh, a perforated plate having a myriad of fine holes formed in a metal plate, or a laminate of a metal mesh and a perforated plate. It is made of a rigid and so-called self-supporting material.

The seal member 5 is made of a material having a sealing function, such as elastic rubber or fluororesin.

The width of each filter 2 is substantially equal to the height of the inner peripheral surface 57 of the basket 51.
The length is shorter than half the circumference of the inner peripheral surface 57 of the basket 51.

The filter presser 3 is provided in the basket 51 so as to be detachable and presses the butting portion 6 of the filter 2. In this example, the filter pressing body 3 is located between the butting portions (left and right edges) 6 of the adjacent filters 2. The mounting piece 7, the left and right grooves 8 formed therein and into which the abutting part 6 of the filter 2 is inserted, and the abutting part 6 of the filter 2 provided on the mounting piece 7 to form this The left and right ear pieces 9 to be pressed against the peripheral surface 57 have a substantially T-shaped cross section, and the basket 51 has a length.
Is slightly shorter than the height of the inner peripheral surface 57.

The filter presser 3 is detachably attached to the body plate 53 of the basket 51 by the attachment 10 using the dewatering hole 56 of the basket 51. Fixture 1
Numeral 0 is composed of an appropriate number of bolts 11 implanted in the mounting piece 7 of the filter presser 3 and inserted into the dewatering hole 56, and a nut 12 screwed into the bolt.

Next, the operation will be described based on such a configuration. The two divided filters 2 are respectively inserted through the openings 55 of the basket 51 and arranged so as to form a cylindrical shape along the inner peripheral surface 57 of the basket 51. At this time, the seals 5 located at the upper and lower edges of each filter 2 are abutted on the upper plate 52 and the bottom plate 54 of the basket 51, and the filter presser 3 is located between the abutting portions 6 of the adjacent filters 2.
A gap into which the mounting piece 7 can be inserted is formed.

Then, the bolt 11 of the fixture 10 is inserted into the dewatering hole 56 of the basket 51 and the filter 2
After the mounting piece 7 of the filter presser body 3 is inserted between the butting portions 6 of the
The filter body 2 is screwed and attached, and the seal body 5 located at the butting portion 6 of the filter 2 is pressed against the inner peripheral surface 57 of the basket 51 by the lugs 9 of the filter press body 3. Nut 12
Although not shown, is inserted from an inspection port provided in the casing and screwed. At this time, it is desirable that the relationship between the filter 2 and the filter presser 3 is set such that expansion and contraction of the filter 2 due to centrifugal force can be tolerated.

The filter 2 includes a filter body 4 and a seal body 5 provided integrally on the periphery of the filter body 4.
During rotation of the basket 51, the basket 5
1 and is automatically sealed by being pressed against the inner peripheral surface 57. Therefore, leakage of solid matter from the periphery of the filter 2 is prevented.

Since the filter 2 includes the filter body 4 and the seal body 5 provided integrally with the periphery of the filter body 4,
As a result, the filter 2 can be easily attached to and detached from the basket 51 without much trouble in mounting. Therefore, the filter 2 can be easily cleaned or replaced.

Since the filter 2 includes the filter body 4 and the seal body 5 provided integrally with the periphery of the filter body 4,
At the time of attachment / detachment to / from the basket 51, there is no possibility that the worker touches the periphery and injuries or damages each part of the basket 51.

The filter 2 includes the filter body 4 and the seal body 5 provided integrally with the periphery of the filter body 4.
A part of the seal body 5 is connected via a large number of holes formed in the peripheral edge of the filter body 4, and the filter body 4 and the seal body 5 are firmly connected.

Since the filter presser 3 is attached to the body plate 53 of the basket 51 by using the dehydrating hole 56 of the basket 51 by the attachment 10, it is not necessary to form a dedicated mounting hole in the basket 51. , Is quite reasonable.

Although the filter 2 is divided into two in the above example, the invention is not limited to this. For example, the filter 2 may be divided into one, three or more. In the above example, the upper and lower edges of the filter 2 are merely pressed against the inner peripheral surface 57 of the basket 51 by centrifugal force. However, the present invention is not limited to this. For example, the filter 2 may be formed using a well-known turnbuckle band. The upper and lower edges of the basket 51 may be expanded to strongly press the inner peripheral surface 57 of the basket 51. In the above-described example, the mounting tool 10 has the bolt 11 implanted in the filter holding member 3. However, the mounting member 10 is not limited to this, and is separate from the filter holding member 3. It may be inserted.

[0023]

As described above, according to the present invention, as described above,
The following excellent effects can be obtained. (1) The filter comprises a filter and a filter retainer. In particular, the filter includes a filter and a seal provided integrally with the periphery of the filter. The filter can be easily attached to and detached from the basket. (2) Since the filter is provided with the filter body and the seal body provided integrally with the periphery of the filter body, the filter is pressed against the inner peripheral surface of the basket by centrifugal force during the rotation of the basket and automatically. Sealed.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view showing a state where a filter device of the present invention is mounted on a basket.

FIG. 2 is a perspective view showing a filter device of the present invention.

FIG. 3 is a front view showing a filter.

FIG. 4 is an enlarged vertical sectional side view of FIG. 3;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Filter apparatus, 2 ... Filter, 3 ... Filter holding body, 4 ... Filter body, 5 ... Seal body, 6 ... Butt, 7 ...
Attachment pieces, 8 grooves, 9 ear pieces, 10 attachments, 11 bolts, 12 nuts, 50 centrifuge, 51 basket, 52 upper plate, 53 body plate, 54 bottom plate, 55 ... opening, 56 ... dehydration hole, 57 ... inner peripheral surface.

Claims (1)

[Claims] 1. A filter, which is provided along an inner peripheral surface of a basket with a filter body and a seal body provided integrally with a peripheral edge of the filter body, and a butting portion of the filter which is detachably provided on the basket. And a filter presser for holding the filter.