JPH10328506A - Filter press provided with filter cloth supporting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filter press with a filter cloth supporting device in which filter cloth hanging bars are easily attached and detached. SOLUTION: In this filter press, a filter cloth supporting device 20 provided with a bar-shaped filter cloth having bar supporting member 45 having an engagement clearance 40 through which a pair of filter cloth hanging bars 42, 43 can be passed one by one but cannot be passed at the same time and in which the bars 42, 43 are supported on the upper ends of a pair of front and rear filter cloths 4 respectively, a guide supporting member 44 for guiding each end part 45a of the supporting member 45 movably along the vertical direction and elastic energizing members 49, 30 supported by the guide supporting member 44 and for energizing each end part 45a of the supporting member 45 upward is provided to each filter plate. Then, after either of the pair of filter cloth hanging bars 42, 43 for the pair of the front and rear filter cloths 4 of each filter plate is passed through the engagement clearance 40 of the supporting member 45, the residual filter cloth having bar is passed through the clearance 40 to about both the filter cloth having bars 42, 43 each other through the filter cloths 4 before and behind between the engagement clearance 40 and also engage them with the supporting member 44 and thereby, both the filter cloth hanging bars 42, 43 are stropped to pull out of the engagement clearance to hold and support them.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter press provided with a filter cloth supporting device above a filter plate for detachably suspending and supporting a pair of filter cloths between adjacent filter plates.

[0002]

2. Description of the Related Art Hitherto, various types of filter cloth hanging support devices of this type have been known. For example, Japanese Patent Publication 3-56
No. 765 discloses that a coil spring is housed in a cylindrical portion provided on both sides of an upper end of a filter plate, and a supporting rod is urged upward by the coil spring. There is disclosed a filter cloth hanging rod fixed via a lever.

[0003]

However, in the above structure, when replacing the filter cloth, the support rod is removed from the filter plate, and then the filter cloth is removed from a pair of levers swingably supported by the support rod. It is necessary to remove the hanging rod, and the lever swings freely and is unstable, so it is difficult to remove only the filter cloth hanging rod without removing the support rod from the filter plate, and the filter cloth replacement work is complicated. It was something. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a filter press having a filter cloth supporting device capable of easily attaching and detaching a filter cloth hanging rod, in order to solve the above problems.

[0004]

In order to achieve the above object, the present invention provides a filter cloth hanging rod supporting member for supporting a filter cloth hanging rod without removing the filter cloth hanging rod support member from a filter plate. Only one can be easily attached and detached. According to the first aspect of the present invention, a pair of filter cloth hanging rods respectively supported by the upper ends of a pair of front and rear filter cloths pass one by one, but not two simultaneously. A hanging rod support member, a guide support member that guides each end of the support member movably in the vertical direction, and an elastic member that is supported by the guide support member and urges each end of the support member upward. A filter cloth supporting device provided with a biasing member is provided on each filter plate, and either one of the pair of filter cloth hanging rods of the pair of front and rear filter cloths of each filter plate is placed in the engagement gap of the support member. After the passage, the remaining filter cloth hanging rods are passed through the engaging gap, and the two filter cloth hanging rods contact each other via the filter cloth before and after the engaging gap, and engage with the support member. As a result, the two filter cloth hanging bars are retained and retained from the engagement gap. It has to be supported Te to provide a filter press with filter cloth supporting apparatus according to claim. According to the second aspect of the present invention, the engagement gap of the support member is formed by fixing a U-shaped bent portion to the lower surface of the rod-shaped body and forming the U-shaped bent portion between the rod-shaped body and the bent portion. A filter press according to the first aspect is provided. According to the above configuration, one of the filter cloth hanging rods supported on the upper end of the filter cloth is fitted into the engagement gap of the filter cloth hanging rod support member of the filter cloth supporting apparatus supported above the filter plate. After passing the cloth hanging rod, the other cloth cloth hanging rod is passed through, and the filter cloth is pulled downward or the filter cloth hanging rods are brought into contact with each other via the filter cloth by the weight of the filter cloth, and the supporting member Can be engaged and supported by contacting the filter with a filter cloth. Therefore, it is possible to easily prevent the hanging of the filter cloth hanging rod from the engagement gap, and it is possible to easily attach the filter cloth hanging rod to the filter plate. Also, when removing the filter cloth hanging rod from the engagement gap, lift the filter cloth to release the contact of the filter cloth hanging rod, and first pull out only one filter cloth hanging rod from the engagement gap, By pulling out the remaining filter cloth hanging rods from the engagement gap, it is possible to easily remove only one of the filter cloth hanging rods or both of the filter cloth hanging rods without removing the support member from the filter plate. . Further, such an engagement structure can be simply and inexpensively configured.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments according to the present invention will be described below in detail with reference to FIGS.
As shown in FIG. 1, the filter press provided with the filter cloth supporting device 20 according to one embodiment of the present invention includes filter cloth hanging rods 42 and 43 having the upper end of the filter cloth 4 fixed above the filter plate 1. Is provided with a filter cloth supporting device 20 which can be easily attached and detached. This filter press
The following description will be made assuming that the ordinary filter plates and the compressed filter plates are alternately arranged.However, the present invention is not limited to this, and is also applied to a filter press including only the ordinary filter plates and a filter press including only the compressed filter plates. Embodiments can be applied.

Each filter plate 1 has a filter bed 1a having an undiluted solution supply port 1g communicating with an undiluted solution supply port 4g of the filter cloth 4, and ears 1e projecting laterally from upper and lower ends of both side surfaces. And a through hole 1 penetrating in the thickness direction in each ear 1e.
It is a well-known filter plate having f. The ordinary filter plate included in this filter press is composed of only the filter plate 1, but in the case of a compressed filter plate, the filter plate 1 is configured as a core plate, and inflatable compressed membranes are arranged on both sides of the core plate. I have. In FIG. 1, the upper left through-hole 1f is for supplying compressed air for expanding the compressed membrane of the compressed filter plate, and the compressed air is supplied from the through-hole 1f through the passage 1h to the open hole 1f.
i, the compressed film is supplied between the compressed film and the core plate to expand the compressed film. In addition, the lower left and right upper and lower total 3
The individual through holes 1f, 1f, 1f are used as filtrate recovery holes. .., 1f can be used as filtrate recovery holes in a filter press without a pressed filter plate. Further, a filter cloth 4, which is arranged between the adjacent filter plates 1, 1
A bag portion is formed at the upper end of each of the four, and filter cloth hanging rods 42 and 43 are inserted into the bag portion so as to be able to be pulled out.

As shown in FIGS. 2, 3, and 4, a support cylinder 44 having an upward opening and a vertically extending recess 44a is fixed to each side of the upper end surface of each filter plate 1. . Each end 45a of the rod-shaped main body 45b of the generally rod-shaped filter cloth hanging rod support member 45 moves vertically in the concave portion 44a of the support cylinder 44 through the cutout 44b inside the support cylinder 44. Mated as possible. This filter cloth hanging rod support member 4
An elastic pedestal 30 protruding downward from the lower surface is integrally fixed to each end 45a of the fifth member 5, and a compression spring 49 is disposed between the elastic pedestal 30 and the concave portion 44a of the support tube portion 44.
On the other hand, an upwardly extending rod 46 is fixed to the upper surface of each end 45a of the support member 45, and a circular dish 46a larger than the outer diameter of the rod 46 and larger than the inner diameter of the concave portion 44a is integrally formed at the upper end of the rod 46. And the dish 46a
The hard rubber lining 47 is fixed on the upper surface of the. When the hammer 48 comes into contact with the hard rubber lining 47, the filter cloth hanging rod support member 45 swings vertically by the urging force of the compression spring 49 via the rod 46, and the elastic pedestal 30 The support member 45 is moved upward by the elastic force of the elastic pedestal itself even if it collides with the bottom surface, and the end 45a of the support member 45 is not damaged. When the support member 45 moves up and down in this way, both ends 45a of the filter cloth hanging rod support member 45
Are guided vertically in the recesses 44a, 44a of the support cylinders 44, 44, respectively, so that the filter cloth hanging rod support member 45 smoothly moves up and down while being supported substantially along the horizontal direction. Vibration can be applied to the filter cloths 4 and 4 via the cloth hanging rods 42 and 43.

A bent portion 41 bent in a U-shape is fixed to the lower surface side of the rod-shaped main body 45b of the filter cloth hanging rod support member 45, and the bent portion 41 and the rod-shaped main body 45 of the support member 45 are fixed.
b to form a rectangular engagement gap 40 penetrating therethrough. The width of the engaging gap 40 along the rod-shaped main body 45b of the support member 45 is longer than the length of the filter cloth hanging rods 42, 43, and the filter cloth hanging rods 42, 43 are smoothly inserted into the engaging gap 40. So that The vertical gap of the engagement gap 40 is
A pair of filter cloth hanging rods 42 and 43 supported on the upper ends of the front and rear pair of filter cloths 4 and 4 respectively pass through one by one, but have dimensions that cannot pass simultaneously.

Therefore, when the filter cloth hanging rods 42 and 43 are passed through the engaging gap 40, one of the filter cloth hanging rods, for example, the filter cloth hanging rod 42 is shown in FIG. After passing from the left to the right of 3,
The filter cloth hanging rod 43 is turned from the right side to the left side.
0 is inserted. Then, by pulling both filter cloths 4 and 4 downward, the filter cloth hanging rods 42 and 43 abut on each other via the filter cloths 4 and 4 on both left and right sides of the engagement gap 40, respectively. The reference numerals 42 and 43 abut against and engage with the support member 45 or the bent portion 41 via the filter cloths 4 and 4, and are retained in the engagement gap 40 so as not to come off. That is, for example, in the example of FIG. 3, the filter cloth hanging rod 42 is located below the filter cloth hanging rod 43, and is in contact with the bent portion 41 and the upper filter cloth hanging rod 43 via the filter cloths 4 and 4. The upper filter cloth suspending rod 43 contacts the lower filter cloth suspending rod 42 and the rod-shaped main body 45b of the support member 45 via the filter cloths 4 and 4 while the upper filter cloth suspending rod 43 is in contact therewith. Is held in place.
Therefore, the filter cloth hanging rods 42, 4
3 is engaged and held, and the filter cloth hanging rods 42 and 43 are
5, the filter cloths 4, 4 can be easily attached to the filter cloth support device 20.

Conversely, if you want to replace the filter cloths 4, 4,
After the filter cloths 4, 4 are slackened upward so that the filter cloth hanging rods 42, 43 do not abut on each other, and further, the rod-shaped main body 45b of the support member 45 and the bent portion 41 do not abut.
If one of the filter cloth hanging rods 42 and 43 is pulled out from the engagement gap 40 and then the other filter cloth hanging rods are also pulled out, the support member 45 is attached to the filter plate 1.
In addition, it is possible to easily remove only the filter cloth hanging rods 42 and 43 without removing the filter cloth suspension apparatus 20 from the filter cloth support apparatus 20. When vibration is applied to the filter cloths 4 and 4 to promote the peeling of the cake adhered to the filter cloths 4 and 4, the filter cloths 4 and 4 are arranged above both sides of the filter plate 1 as shown in FIGS. Rail 5
The two hammer driving devices 50, 50 are moved along the positions 1, 51 to positions facing the hard rubber linings 47, 47, and the hammers 48, 48 supported by the hammer driving devices 50, 50 are moved to the rubber linings 47, 47. For example, by virtue of being shot down synchronously, vibrations can be applied to the filter cloths 4 and 4 as described above. The rubber lining 47 has an effect of preventing damage to the rod 46 and the like due to the impact of the hammer 47.

According to the above embodiment, the filter cloth 4 is supported on the upper ends of the filter cloths 4 and 4 in the engagement gap 40 of the filter cloth hanging rod support member 45 of the filter cloth support apparatus 20 supported above the filter plate 1. After passing through either one of the filter cloth hanging rods 42 and 43, the other filter cloth hanging rod is passed, and the filter cloths 4, 4 are pulled downward or the filter cloths 4, 4 are pulled downward. The filter cloth suspension rods 42 and 43 can be brought into contact with each other via the filter cloths 4 and 4 by their own weight, and can be engaged and supported by being brought into contact with the support member 45 via the filter cloths 4 and 4. .
Therefore, it is possible to easily prevent the filter cloth hanging rods 42 and 43 from coming off with respect to the engagement gap 40, and the filter cloth hanging rods 42 and 43 can be easily removed.
43 can be easily attached to the filter plate 1.
When removing the filter cloth hanging rods 42, 43 from the engagement gap 40, the contact of the filter cloth hanging rods 42, 43 is released by lifting the filter cloths 4, 4, or the like.
By first pulling out only 2 or 43 from the engagement gap 40 and then pulling out the remaining filter cloth hanging rods 43 or 42 from the engagement gap 40, the filter cloth can be removed without removing the support member 45 from the filter plate 1. Hanging rod 42 or 43 or 42, 43
Only both can be easily removed. Further, such an engagement structure can be simply and inexpensively configured. Note that the present invention is not limited to the above embodiment, and can be implemented in other various aspects. For example, FIG. 5 shows a case where vibration is applied to the filter cloth hanging rods 42 and 43 when the filter plates 1 are fed one by one. However, when all the filter plates 1 are opened at the same time, one filter plate is used. The filter cloth hanging rods 42, 43 may be vibrated in order or simultaneously for each filter plate.

[Brief description of the drawings]

FIG. 1 is a front view of a filter plate and a filter cloth support device of a filter press provided with a filter cloth support device according to an embodiment of the present invention.

FIG. 2 is a partially enlarged front view of the filter plate and the filter cloth supporting device.

FIG. 3 is a partially enlarged side view of the filter plate and the filter cloth supporting device.

FIG. 4 is a partially enlarged plan view of the filter plate and the filter cloth supporting device.

FIG. 5 is a partial side view of the filter press.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Filter plate, 1a ... Filter bed, 1e ... Ear part, 1f ... Through hole, 1g
... stock solution supply port, 20 ... filter cloth support device, 30 ... elastic base,
40 ... engagement gap, 41 ... bent part, 42, 43 ... filter cloth hanging rod, 44 ... support cylinder part, 44a ... concave part, 44b ... notch, 4
Reference numeral 5: filter cloth hanging rod support member, 45a: end portion, 45b: rod-shaped main body, 46: rod, 46a: plate portion, 47: hard rubber lining, 48: hammer, 49: compression spring, 50: hammer driving device, 51 …rail.

Claims (2)

[Claims] A pair of filter cloth hanging rods (42, 43) respectively supported on the upper ends of a pair of front and rear filter cloths (4), each of which passes one by one, but not two simultaneously.
A rod-shaped filter cloth hanging rod support member (45) having: a guide support member (44) for movably guiding each end (45a) of the support member in the vertical direction; and a guide support member supported by the guide support member. Each filter plate (1) is provided with a filter cloth support device (20) including an elastic biasing member (49, 30) for biasing each end of the support member upward. After passing any one of the pair of filter cloth hanging rods of the pair of filter cloths through the engagement gap of the support member,
The remaining filter cloth hanging rods are passed through the engaging gap, and both of the filter cloth hanging rods are in contact with each other via the filter cloth before and after the engaging gap, and are engaged with the support member. A filter press provided with a filter cloth supporting device, wherein the both hanging rods of the filter cloth are retained and supported from the engagement gap. 2. The engagement gap of the support member is formed by fixing a U-shaped bent portion (41) to a lower surface of a rod-shaped main body (45b).
The filter press according to claim 1, wherein the filter press is formed between the rod-shaped main body and the bent portion.