KR870001039B1 - Filter press - Google Patents

Abstract

One or more than one pair of filter plates(8) have the first and second slurry feeding gates(8a). The first and the second filter cloths(10-1, 10-2) are established between the filter plates. Slurry holes are made in the cloths and connected to the slurry gates. A filter chamber forms between the filter cloths when the cloths get close each other. A supporting piece supports the upper portion of the filter cloths and an elastic piece vibrates the supporting piece. A fixing apparatus fixes the lower portion of the filter cloths to the filter plates. Slurry is fed from the gates(8a) to the chamber through the slurry holes(10a) and a feeding passage(30).

Description

Filter cloth device of compression filter

1 is a side view showing a part of the compression filter of a fixed type of filter cloth provided with the filter cloth device of the first embodiment according to the present invention.

2 is a front view of the compression filter shown in FIG.

3 is a front view of the sludge conveying apparatus used in the filter cloth apparatus of FIG.

4 is a cross-sectional view taken along line IV-IV of FIG.

FIG. 5 is a cross-sectional view of the slurry conveying apparatus of FIG. 3 being inserted between a pair of filter plates installed in the compression filter of FIG.

6 and 7 show a second embodiment of the slurry conveying apparatus according to the present invention as shown in FIG. 3 and FIG.

8 and 9 show the slurry transport apparatus of the third embodiment of the present invention as shown in FIGS. 3 and 5.

10 and 11 show the slurry conveying apparatus of the fourth embodiment of the present invention as shown in FIG. 3 and FIG.

12 and 13 show the slurry conveying apparatus of the fifth embodiment of the present invention as shown in FIG. 3 and FIG.

14 and 15 and 16 show the slurry conveying apparatus of the sixth embodiment of the present invention as shown in FIGS.

17 and 18 show the slurry conveying apparatus of the seventh embodiment according to the present invention as shown in FIG. 3 and FIG.

19 and 20 show the slurry conveying apparatus of the eighth embodiment according to the present invention as shown in FIGS.

21 and 22 show the slurry conveying apparatus of the ninth embodiment according to the present invention as shown in FIG. 3 and FIG.

23 and 24 show the slurry transport apparatus of the tenth embodiment according to the present invention as shown in FIG. 3 and FIG.

25 is a view showing the installation state of the slurry transport apparatus of the eleventh embodiment according to the present invention as shown in FIG.

26 and 27 and 28 show the slurry conveying apparatus of the twelfth embodiment according to the present invention as shown in FIG. 3 and FIG.

FIG. 29 is a cross-sectional view showing the installation state of the slurry transport apparatus of the thirteenth embodiment of the present invention in comparison with FIG.

30 is a cross-sectional view taken along the line XXX-XXX in FIG. 29;

FIG. 31 is a cross sectional view along line XXXI-XXXI in FIG. 29; FIG.

32 is a front view of the filter cloth attaching device installed in the filter cloth device of FIG.

33 is a side view of the filter cloth support device in FIG.

34 (a), (b) and 35 (a), (b) show a second embodiment of the filter wrapping apparatus according to the present invention as shown in FIG. 32 and FIG.

36 and 37 show the third and fourth embodiments of the filter wrapping apparatus according to the present invention as in FIG.

38 (a) and 38 (b) show a fifth embodiment of the filter cloth holding apparatus according to the present invention as shown in FIGS. 32 and 33.

FIG. 39 shows a sixth embodiment of the filter wrapping apparatus according to the present invention in a thirty-second diagram. FIG.

40 is a view showing a filter cloth device according to a second embodiment of the present invention in comparison with FIG.

FIG. 41 is a cross sectional view along line XLI-XLI in FIG. 40; FIG.

42 and 43 are side views showing the filter cloth device according to the third and fourth embodiments of the present invention compared with FIG.

FIG. 44 is a sectional view of an amplitude adjusting device used in the filter cloth device of FIG. 42 and FIG.

* Explanation of symbols for main parts of the drawings

1: front stand 2: fixing plate

3: slurry transfer plate 4: filtrate discharge tube

5: rear stand 6: moving plate

7: hydraulic cylinder 8: filter plate

8a: slurry feed hole 8b: protrusion

9: beam 10-1, 10-2: filter cloth

10a: slurry hole 11: support rod

13-1,13-2: Link 14: Hinge pin

15: coil spring 16: link

17: tension adjusting rod 18: rail

19: Filter vibrator 20: Lamellar piston

21: filter chamber 22-1, 22-2: slurry transfer plate

23: inner ring 23a: through hole

26: flush bolt 27: home

29: packing 30: slurry transfer passage

The present invention relates to a fixed filter-type compression filter having a plurality of filter plates and a plurality of filter cloths positioned in pairs between these filter plates, in particular the upper end of the filter cloth is suspended from the filter plate and a portion of the filter cloth is attached to the filter plate. The present invention relates to a filter cloth device of a compression filter.

Conventionally, various filtration apparatuses for compression filters using fixed filter cloths have been proposed. For example, in Japanese Utility Model Publication No. 21094 of 1963, each pair of adjacent filter cloths suspended from both sides of the filter plate is placed in the slurry hole of the filter plate. A filter cloth device in which the filter cloth is supported in the slurry hole while being connected to form the slurry transfer opening of the filter cloth, and the fixture of the outer circumferential surface portion of the slurry hole of the filter cloth is formed in each slurry opening portion according to Japanese Patent Publication No. 20697 in 1964. The filter cloth device attached to the outer circumferential surface portion of the slurry hole of the filter plate and the Japanese Utility Model Publication Nos. 20384 and 13027 in 1970, when the filter plates are pressed against each other, the fixtures of the filter cloths come into contact with each other to form a slurry transfer path between the filter plates. The filter cloth device is made to achieve In this conventional filter cloth device, the filter cloth is attached to the outer peripheral surface portion of the slurry hole of the filter plate so that the upper end of the filter cloth is elastically supported by the support rod and the support rod vibrates when the filter plates are separated from each other. Even if the filter cloth vibrates along, the vibration of the filter cloth is not transmitted to the lower part of the filter cloth positioned below the slurry hole of the filter plate.

Therefore, the viscous filter cake attached to the upper part of the filter cloth in the known conventional filter cloth device is released from the vibration as the filter cloth is vibrated, and a part of the viscous filter cake stuck to the lower part of the filter cloth has its own weight. Although dropped by, due to the reason that the vibration is not transmitted to the lower portion of the filter cloth, a portion of the filter cake was left without falling, there was a problem that worsens the filtration effect.

Accordingly, in the present invention, by eliminating the problems described above, when the filter cloths are separated from each other, the filter dregs can be effectively removed from the whole part of the filter cloth so as to eliminate the problems of the conventional filter device. Slurry conveying device which provides a filter cloth device of the filter, and which can easily attach the filter cloth to the filter plate and allow the slurry to be filtered to be transferred between the filter cloths, so that the vibration of the filter cloth is not limited by other components other than the filter cloth. While providing a filter device of a compression filter equipped with a filter, the structure of the compression filter which is simple in structure and high in reliability in practical use, can be mass-produced at a minimum cost, and can be easily applied to a compression filter using a fixed filter cloth. To provide a device All.

The filter cloth device according to the present invention for achieving the above objects is inserted between at least a pair of first and second filter plate and the first and second filter plate is formed with the first and second slurry feed hole. A pair of first and second filter cloths are provided, and the first and second filter cloths are in communication with the first and second slurry feed holes and are filtered between them when the first and second filter plates are compressed together. A filter cloth device using a compression filter of the fixed filter type having a first and a second slurry hole for forming a chamber, the support member for supporting the upper end of the first and second filter cloth, the support An elastic member for supporting the member so as to vibrate, a fixing member for fixing the lower ends of the first and second filtration plates, and a first filter cloth for fixing the lower ends of the first and second filtration plates. It consists of a first slurry transport plate arranged between the first and second filter cloth so that the first filter cloth vibrates with the first slurry transport plate when separated from each other, the first slurry transport plate is the first and second filter plates When pressed together they form a slurry transfer passage for injecting the slurry to be filtered into the manure chamber in connection with the first and second slurry holes so that the slurry conforms to one of the first and second slurry feed holes. It is characterized in that it is to be transferred into the filter chamber through one of the first and second slurry holes and the slurry transfer passage.

In addition, in the apparatus according to the present invention, when the filter plates are separated from each other, the support member supporting the upper end of the filter cloth is vibrated, so that the whole of the filter cloth having the lower end is vibrated while the slurry transfer plate is allowed to vibrate. The filter cake is completely removed from the filter cloth and discharged so that the filter cake is not vibrated with the filter cloth so as not to disturb the vibration of the filter cloth.

As used herein, the term “filter plate” refers to adding a so-called compression filter plate to a general filter plate, and the filter cloth holding device of the present invention can be applied not only to a compressor in which a general filter plate and a compression filter plate are alternately arranged, but also to a compression filter plate. It can also be applied to a compressor.

In addition, the term “fixed filter cloth” is used in the opposite meaning to the type in which the filter cloth moves. The effective filter area of the filter cloth is not intended to move up and down relative to the filter plate, but is fixed to the filter plate to vibrate. will be.

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

1 and 2 are views showing the installation of the filtration device (S1) according to the present invention in a compression filter using a fixed filter cloth, generally, the compression filter is a front stand (1) by the front stand Supported fixed plate 2, slurry transfer plate 3, filtrate discharge plate 4, rear stand 5, moving plate 6, one slurry supply port 8a and a pair of protrusions 8b are formed A plurality of beams (8), a hydraulic cylinder (7) for pressing the filter plate (8), and a pair of beams extending transversely along both sides between the front stand (1) and the rear stand (5). 9) a plurality of filter cloths (10-1, 10-2) and the front stand (1) of the compression filter and inserted into a pair between the filter plates (8) adjacent to each other, each of which has a slurry hole (10a) and A pair of upper rails 18 are provided on the upper part between the rear stands 5.

In FIG. 1, the left and right sides represent the front part and the rear part of the compression filter, respectively. The front stand 1 is provided with a slurry transfer plate 3 and a filtrate discharge plate 4 while the rear stand 5 is moved. A hydraulic cylinder 7 having a plunger connected to the rear center portion of the plate 6 is supported.

On the other hand, a pair of protrusions 8b arranged on opposite sides of each filter plate 8 are positioned on the beam 9 so that the filter plate 8 moves before and after the compression filter, and the hydraulic cylinder Insertion position between the pair of filter plates 8 adjacent to each other when the filter plate 8 is pressed against each other between the fixed plate 2 and the moving plate 6 as the moving plate 6 is moved forward with the moving plate 7 moving forward. The filter chamber 21 is formed between the pair of filter cloths 10-1 and 10-2, as shown in FIG. 5, and the slurry to be filtered which is injected into the filter chamber 21 under a constant pressure is the filter chamber. The filtrate is filtered in (21), and the filtrate residue collected in the filter chamber (21) is gradually filtercakeized while the filtrate is collected in the filtrate discharge plate (4).

In this way, after one cycle of filtration is completed, the moving plate 6 is separated from the fixed plate 2, and thus the filter plate 8 is separated from each other from the side of the moving plate 6 so that the filter cake is separated from the filter chamber. (21) to be released.

As shown in FIGS. 1 and 2, the filter cloth support device S1 is generally a filter cloth support device for supporting the upper ends of the respective filter cloths 10-1 and 10-2, which are paired with the slurry feeder K. L1) and a filter cloth holding device M for holding the lower ends of the respective filter cloths 10-1, 10-2 at the lower part of the filter plate 8, wherein the filter cloth holding device L1 is a filter cloth. A support rod 11 for hanging and supporting the upper ends of 10-1 and 10-2 is fixed to the pair of hinge pins 14 and the upper end to the hinge pins 14, and both ends of the support rods 11 are lower. It has a pair of coil springs 15 attached to each end to elastically support the support rod 11, and each of the hinge pins 14 has a pair of links 13-1, 13- from above. 2) is pivotally connected to each other, and each of the connecting links 13-1 and 13-2 is connected to the link 16 connected to pivot in the lower portion thereof. A strong adjustment bar 17 is fixed to the end of the link 16 to tension each of the filter cloths 10-1 and 10-2, so that neighboring filter plates 8 are shown in FIG. When separated from each other, the filter cloth 10-1, 10-2 is pulled from each other by the tension adjusting bar 17 to properly tension the filter cloth 10-1, 10-2.

In addition, a filter cloth vibrator 19 moving along the upper rail 18 is installed directly on the support rod 11, so that the support rod 11 is applied as the impact piston 20 exerts an impact force on the rod 11. Vibrating downwards greatly, a pair of filter cloth (10-1, 10-2) is repeated tension and relaxation, accordingly the filter residue (8) adjacent to the filter residue attached to the filter cloth (10-1, 10-2) When separated and separated, the filter residues attached to the filter cloths (10-1, 10-2) are not dropped by their own weight and are removed.

The slurry conveying apparatus K is provided with a pair of slurry conveying plates 22-1 and 22-2 for injecting the slurry into the filter chamber 21 through the slurry supply port 8a of the adjacent filter plate 8. As shown in FIGS. 1 and 2, the slurry transfer plates 22-1 and 22-2 are attached only to the filter cloths 10-1 and 10-2 and separated from neighboring filter plates 8. 10-1 and 10-2 vibrate gently.

Thus, when the filter plates 10-1 and 10-2 are tensioned as described above, the slurry transfer plates 22-1 and 22-2 are adjacent to the filter plate 8 together with the filter cloths 10-1 and 10-2. Away from it.

In more detail, as shown in FIGS. 3 to 5, each of the slurry transfer plates 22-1 and 22-2 has an inner ring 23 and a through-hole 24a having a through-hole 23a formed therein. Equipped with an outer ring 24 having a thickness thinner than the inner ring 23, the inner ring 23 and the outer ring 24 have respective filter cloths 10-1 and 10-2 inserted therebetween. The plurality of counter-head bolts 25 are fastened to each other so that the slurry holes 10a of the filter cloths 10-1 and 10-2 communicate with the through holes 23a and 24a.

In addition, the inner ring 23 has two grooves 27 formed at right angles to each other while communicating with the through hole 23a on the opposite plane of the outer ring 24, and the groove 27 has an inner ring ( 23) It is dug by the depth corresponding to half the thickness width to form four projections 28 with respect to the inner ring 28.

Therefore, when the filter plates 8 adjacent to each other are brought into close contact with each other as shown in FIG. 22-1 and 22-2 are positioned between the packings 29 of adjacent filter plates 8 so that each of the packings 29 forms a slurry supply port 8a.

At the same time, the slurry feed passage 30 is formed by the groove 27 of the inner ring 23 between the pair of slurry transfer plates 22-1 and 22-2 so that the slurry supply port of the filter plate 8 adjacent to the slurry is formed. One of the through-holes 24a of the outer ring 24 and one of the slurry holes 10a of the filter cloth 10-1, 10-2 and the inner ring 23 and the slurry corresponding to one of (8a). It is to be injected into the filter chamber 21 via one of the through-holes 23a of the transfer passage 30.

In the embodiment described above, but the slurry transfer passage 30 is composed of a projection 28 protruding on the surface of the groove 27 and the inner ring 23 between the pair of inner ring 23 as follows. The slurry transfer device K1 of the second embodiment according to the present invention shown in FIG. 6 and FIG. 7 may be formed by various methods, and the pair of inner rings 31 and 31 'acting as a slurry transfer plate may be used. The filter cloth 10-1, 10-2 is attached to each of the inner rings 31, 31 'by a plurality of screws 32, and is disposed between the filter cloths 10-1, 10-2. The rings 31 and 31 'are arranged to be positioned.

In addition, the inner ring 31 has a plurality of cylindrical protrusions 33 formed on the opposite side to which the filter cloth 10-1 is attached, so that the protrusions 33 of the inner ring 31 when the adjacent filter plates 8 are in close contact with each other. ) Is brought into contact with the contact surface 31'a of the inner ring 31 'to form a slurry transfer passage 34 between the two inner rings 31 and 31'.

The slurry conveying apparatus K2 of the third embodiment according to the present invention shown in FIG. 8 and FIG. 9 is provided with a pair of slurry conveying plates 39. Each slurry conveying plate 39 has an inner ring 36 and an outer portion. Ring 37, a plurality of countersunk head 38 is inserted into the inner ring 36 from the outer ring 37 through the intaglio filter cloth (10-1, 10-2) to the outer ring 36 The filter cloth (10-1, 10-2) is fastened with the nut (35) to be positioned between the inner ring 37 and the inner ring (37), when the neighboring filter plate (8) is in close contact with each other out of the inner ring (36) The nut 35 which protrudes and faces each other is contacted to form a slurry transfer cylinder 40 between the pair of inner rings 36.

In the slurry conveying apparatus K3 of the fourth embodiment according to the present invention shown in FIG. 10 and FIG. 11, a plurality of step bolts 41 are provided in place of the counter head bolt 38 in the third embodiment. Each step bolt 41 has a length equal to the sum of the thickness of the rod portion 41a and the nut 35 and the thickness of the inner ring 36 having the same length as that of the outer ring 37. It has a diameter larger than the rod portion (41a) of the inner portion (41b), the small diameter rod portion (41a) is the outer ring on the opposite side to which the filter cloth (10-1, 10-2) is attached at its end (37) On the surface, the spiral portion 41b is welded and fixed to the outer ring 37 so as to protrude out of the inner ring 36, and the nut 35 is attached to the step bolt spiral portion 41b of the slurry transfer plate 39. It is fastened so as to face each other.

Therefore, when the adjacent filter plates 8 are in close contact with each other, the nut 35, which protrudes out of the inner ring 30 and faces each other, contacts and forms a slurry transfer path 40 between the inner rings 36.

In the slurry transfer apparatus K4 of the fifth embodiment according to the present invention shown in FIG. 12 and FIG. 13, the countersunk head 38, the nut 35, and the step bolt (used in the third and fourth embodiments) are used. 41 instead of a plurality of hexagonal head bolts 42 having a hexagonal head 42a, the hexagonal head bolt 42 is external from the inner ring 36 via filter cloths 10-1 and 10-2. It is fastened to the spiral groove 37a of the ring 37, so that the filter cloth 10-1, 10-2 is positioned between the inner ring 36 and the outer ring 37, and the hexagonal head out of the inner ring 36. 42a protrudes and faces each other.

Therefore, when the adjacent filter plates 8 are in close contact with each other, the hexagonal heads 42a of the slurry transfer plate 39 come into contact with each other to form a slurry supply passage 40 between both inner rings 36.

The slurry transport apparatus K5 of the sixth embodiment according to the present invention shown in FIGS. 14 to 16 has a high hexagon head 43 a instead of the hexagon head bolt 42 in the fifth embodiment. Since the hexagonal head bolts 43 provided with a plurality of hexagonal head bolts 43 are fastened to one of the slurry transfer plates 39, the hexagonal head bolts fastened to the other slurry transfer plate do not coincide with each other. When the adjacent filter plates 8 are in close contact with each other, the hexagonal head 43a of the hexagonal head bolt 43 fastened to the slurry transfer plate 39 comes into contact with the inner ring 36 of the slurry transfer plate 39. The slurry transfer passage 40 is formed between the inner rings 36.

The slurry conveying apparatus K6 of the seventh embodiment according to the present invention shown in FIG. 17 and FIG. 18 is provided with a pair of slurry conveying plates 47 having one inner ring 44. The inner ring 44 Filter cloths (10-1, 10-2) are attached to the countersunk head bolt (45), and the bolt (45) is outside the inner ring (44) so that the spirals face each other between both inner rings (44). The nut 46 is fastened to the spiral portion of the protruding bolt 45. Accordingly, when two neighboring filter plates 8 are in close contact with each other, the inner ring 44 protrudes out of the inner ring 44 so that the opposite nut 46 contacts each other so that the slurry transfer path 48 is formed between the inner ring 44 on both sides. It is formed.

The slurry conveying apparatus K7 of the eighth embodiment according to the present invention shown in FIGS. 19 and 20 is provided with a slurry conveying plate 51 having an inner ring 44. The filter cloth (10-1, 10-2) is attached by the countersunk head head 49 of the inner ring 44, the inner ring 44 is located between the filter cloth, between the inner ring 44 Three spring plates 50 are formed to slop the inclined portion 50a and the flat central portion 50b so that the central portion 50b of the spring plate 50 is welded to one of the inner rings 44. The inclined portion 50a of the 50 is in contact with the other one of the inner rings 44.

Therefore, when two adjacent filter plates 8 are in close contact with each other, the slurry transfer path between both inner rings 44 is provided so that the inclined portion 50b of the spring plate 50 is elastically supported on one of the inner rings 44. To form (52).

The slurry conveying apparatus K8 of the ninth embodiment according to the present invention shown in FIGS. 21 and 22 is fitted to the inner ring 55 and the holes 55a in which a plurality of holes 55a are formed. A slurry transfer plate 58 is formed of an outer ring 56 having a plurality of bosses 56a formed therein, and each of the bosses 56a is provided with a threaded hole 56a so that the outer ring 56 is provided. Hexagonal head (56a) is inserted into the hole (55a) of the inner ring 55, the hexagonal head so that the filter cloth (10-1, 10-2) is located between the outer ring 56 and the inner ring 55 The hexagon head 57a of the hexagon head bolt 57 is external to both inner rings 55 by screwing the bolt 57 from the inner ring 56 to the threaded hole 56b of the outer ring 56. The hexagonal head bolts 57 protrude out of the inner ring 55 when two adjacent filter plates 8 are in close contact with each other. Each head 57a comes into contact with each other to form a slurry transfer path 59 between both inner rings 55.

The slurry conveying apparatus K9 of the tenth embodiment according to the present invention shown in FIG. 23 and FIG. 24 is provided with a pair of slurry conveying plates 62 having an inner ring 60 and an outer ring 61. The ring 60 has a cylindrical portion 60b having a male thread 60a formed therein, and a flange portion 60c integrally formed with the cylindrical portion 60b, while the outer ring 61 has an inner ring 60. A plurality of holes 61b for accommodating the female screw 61a coupled to the male screw 60a and the pin member of the binding mechanism are formed. In addition, each of the inner ring 60 is formed with two grooves 63 crossing at right angles to each other on one side of the flange portion 60c on the opposite side to which the filter plate 8 is attached, so that the inner ring 60 The cylindrical portion (60b) of the filter cloth (10-1, 10-2) to each of the slurry holes (10a), and then inserted into the hole (61b) of the outer ring 61 inside using a binding mechanism to be used The male thread 60a of the ring 60 is inserted into the female thread 61a of the outer ring 61 to be screwed in. At this time, the filter cloth 10-1, between the outer ring 61 and the inner ring 60, 10-2) to fasten the outer ring 61 and the inner ring 60 to each other. Therefore, when two neighboring filter plates 8 are in close contact with each other, the protrusions 64 of the inner ring 60 come into contact with each other, and the grooves 63 of the inner ring 60 are disposed between the inner rings 60 on both sides. The slurry transfer passage 65 is formed.

FIG. 25 shows the slurry conveying apparatus K10 of the eleventh embodiment according to the present invention, which is modified by the slurry supply apparatus K4 of the fifth embodiment to be made of rubber between the outer ring 367 and the filter plate 8. The sealing ring 67 is additionally installed. By installing such a sealing member, although the slurry transfer plate 39 may not be installed slightly accurately with respect to the slurry transfer opening 8a made by the packing 29 of each filter plate 8, the outer ring 37 and the packing The gap between the (29) is reliably sealed by the sealing ring (67) so that the slurry from the slurry transfer opening (8a) to one side of the filter cloth (10-1, 10-2) close to the packing 29 It will prevent leakage. Further, in consideration of the case where the position of the slurry transfer plate 39 is incorrect with respect to the slurry transfer opening 8a of the filter plate 8 which is adjacent to each other, the outer diameter of the sealing ring 67 is made larger than the outer ring 37. It is also preferred, and this can be done by making the outer ring 37 itself large enough to be equal to the outer diameter of the sealing ring 67.

In the slurry transport apparatus K11 of the twelfth embodiment according to the present invention shown in FIGS. 26 to 28, only one of the pair of filter cloths 10-1, 10-2 is fastened as a countersunk head 26. Only the slurry transfer plate 25 of the, the slurry transfer plate 23 is a through hole 25a which is laterally drilled in the central portion so as to communicate with the slurry hole (10a) of the filter cloth (10-1, 10-2) and Two through openings 25b are formed in the radial direction so as to communicate with the through holes 25a at right angles to each other and act as slurry transport passages. Thus, when the two filter plates 8 adjacent to each other are brought into close contact with each other as shown in FIG. 28, the slurry transfer plate 25 is compressed between the two filter plates 8 through the two filter cloths 10-1 and 10-2. The through opening 25b serves as a slurry transfer passage.

The slurry transfer device K12 of the thirteenth embodiment according to the present invention shown in FIGS. 29 through 31 shows the first thrust member 123, the second thrust member 124, and the first slurry transfer plate 12 6. And a second slurry transfer plate 127, wherein the first thrust member 123 is annularly inserted into the one of two neighboring filter plates 8 and into the slurry transfer opening 8a. 123a, a plurality of pillar portions l23b extending from the annular portion 123a in both axial directions, and a through hole 123c formed by the annular portion 123a, and the pillar portion 123b. Is formed along the circumferential direction of the annular portion 123a at intervals of an appropriate angle, for example, 90 °.

The second thrust member 124 is structurally substantially the same as the first thrust member 123, and includes an annular portion 124a and a plurality of pillar portions 124b and some through holes 124c. Is inserted into the slurry transfer opening 8a of the other one of the two adjacent filter plates 8 so as to be separated.

The first and second slurry transport plates 126 and 127 are attached to the two filter cloths 10-1 and 10-2 by the counter head bolts 26, respectively. ) Is arranged between the first slurry transfer plate 126 and one filter plate 8 and between the second slurry transfer plate 127 and the other filter plate 8.

The first slurry transfer plate 126 has a through hole 126b having an inner diameter larger than the outer diameter of the pillar portion 12 3b of the first thrust member 123 and a plurality of stopper portions extending in the radial direction from the through hole. 126a is provided. Similarly, the second slurry transfer plate 127 has an inner diameter larger than the outer diameter of the pillar portion 124b of the second thrust member 124 and the inner side of the radius from the through hole. A plurality of stopper portions 127a extending in the direction are provided.

In addition, the slurry transfer opening 8a of each filter plate 8 may include the first and second thrust members 123 and 124 so that the pillar part 123 b of the first thrust member is fitted into the outside of the second thrust column 124b and engaged. And the pillars 123b and 124b are inserted so that one of the pillars 124b is adjacent to the pillars 12 3b when two adjacent filter plates 8 are in close contact with each other. The pillar portion 123b and the pillar portion 124b are arranged to cross each other. Therefore, when both filter plates 8 are in close contact with each other, as shown in FIG. 29, the pillar portion 123b of the first thrust member 123 and the pillar portion 124b of the second thrust member 124 are respectively the second slurry. Contacting the stopper portion 127a of the plate 127 and the stopper portion 126a of the first slurry transfer plate 126 so that a constant distance d is formed between the first slurry transfer plate and the second slurry transfer plate 126,127. The slurry transfer passage 128 is made between the first and second slurry transfer plates 126 and 127.

In the slurry conveying apparatus K12 of the thirteenth embodiment according to the present invention, even if the thickness of the filter plate 8 or the adhesion stroke of the filter plate 8 is changed, It is not necessary to change the position, only the positions of the first and second trust members 123 and 124 need to be changed.

In the entire slurry transfer apparatus K-K12 described above, the slurry transfer opening 8a may be located at a position other than the central portion of the filter plate 8, for example, at the periphery of the filter plate 8, and the slurry transfer opening portion (8a) may be formed on each filter plate 8, and a packing made of rubber having flange portions on both sides thereof may be inserted into the slurry transfer portion of the filter plate.

32 and 33 are related to the filter cloth detecting device M, which is a pair of rods 12 and a pair extending downwards to secure the lower ends of the filter cloths 10-1 and 10-2. A bracket (79) in which the slot (80) is formed, and a latch (82) in which a pair of long hole openings (81) extending in parallel with the slot (80) are formed, and the filter plate (8) The bracket 79 fixed to the bottom surface has two spiral holes (not shown) formed at the bottom thereof, and the slot 80 has an opening 80a at each lower end of both brackets 79. Formed.

Therefore, the lower end of the rod 12 is inserted into the slot 80 from the opening 80 a as indicated by the arrow in FIG. 32, and then the two hexagon socket cap screws 84 are screwed through the opening 81. It is screwed into the (83) so that the clasp 82 is fixed at an appropriate position of the bracket 79 so that the opening 80a is covered. Therefore, the rod 12 can vibrate up and down of the bracket 79 in the slot 80 within the range of amplitude T, and release the clamp of the hexagon socket cap screw 84 to release the clasp 82. The rod 12 can be removed from the slot 80 by lowering it, while the amplitude T can change the amplitude within the length of the opening 81 by adjusting the locking position of the latch 82.

34 (a) (b) and 33 (a) (b) show a second embodiment of the filter cloth catching device according to the present invention. The filter cloth catching device M1 includes a bracket 86 and a clasp 91. And the bracket 86 has a pair of side forks 86a extending downwards on both sides and a central fork 87 that also extends downwards between the side forks 86a. Each slot 93 is formed between the center fork 87 and both side forks 86a.

In addition, the bracket 86 has a guide protrusion 88 formed at the lower end of the central fork 87. The guide protrusion 88 has a spiral hole formed therein, while the clasp 91 has a bracket 86 The hanger 90 is provided with an opening 89 of a long hole to be engaged with the guide protrusion 88. The guide protrusion 88 is inserted into the opening 8a to fix the fixing screw 92 to the guide protrusion. The clasp 91 is fastened to the bracket 86 by screwing into the spiral hole of 88).

In the filter cloth detecting device M1 of the second embodiment according to the present invention, the pair of rods 12 are lowered with the latch 91 lowered as shown in FIG. 34 (a) and 35 (a). After inserting into the slot 93, the upper latch 91 is pushed upward again to fix it to the bracket 86 by using the fixing screw 92 as shown in Figs. 34 (b) and 35 (b). In this way, the clasp 91 can be secured to the bracket 86 and can be easily separated from the bracket 86.

36 and 37 show the filter cloth catching devices M2 and M3 of the third and fourth embodiments according to the present invention, wherein the clasps 94 and 95 in the filter cloth catching device are the lower part of the bracket 79. FIG. Each of them is pivotally pivoted about the setting bolt.

Therefore, when the clasps 94 and 95 rotate alternately, the openings 80a of the slots 80 are alternately opened so that both rods 12 are alternately inserted into the bowl 80.

38 (a) and (b) show the filter cloth detecting device M4 of the fifth embodiment according to the present invention, wherein the filter cloth detecting device M4 has a clasp 96 in which a T-shaped slot 97 is formed. ) And a fixing screw 97 having a binding section 98a of a rectangular cross section, wherein the T-shaped slot 97 is vertically extended upward from the horizontal slot section 97a and the horizontal slot section 97a. It is comprised by the slot part 97b, and the binding part 98a is fitted.

In the filter cloth detecting device M4 in the above description, the latch 96 is connected to the binding portion 98a inserted into the vertical slot portion 97b as indicated by the solid line in FIG. 38 (a). On the other hand, in order to separate the clasp 96, when the clasp 96 is raised upward, the side part 98a enters into the horizontal slot part 97a from the vertical slot part 97b, and the clasp 96 is a horizontal slot part. The openings 80a of the two slots 80 are alternately exposed by being able to move laterally within the length range of 97a.

It is also preferred that the clasp 96 is formed such that the rod 12 is spaced apart from each other in the axial direction such that the clasp 96 does not contact each other between two neighboring filter plates 8.

FIG. 39 shows the filter cloth catching device M5 of the sixth embodiment according to the present invention, wherein the filter cloth catching device M5 includes one bracket 100, a pair of pins 101, and a pair of latches. Bar 102 and a pair of clasps 103, the bracket 100 has a pair of cuts formed on both sides so that the upper end portion (100b) and the lower portion (100c) and the upper end portion (100b) and the lower portion (100c) Consists of the central narrowing portion (100a) for connecting.

On the other hand, each clasp 103 is formed in the central narrow portion (103a), and the lower end formed in the long hole 104 and the upper end to be engaged with each pin 102 to bind with each pin 101 A hook 105 is provided, and the pair of pins 101 and the pair of pins 10 2 are respectively inserted into the lower end portion 100c of the upper end portion 100b of the bracket 100.

As shown in the left part of FIG. 39, a slot 106 into which one of the rods 12 is fitted when one of the clasps 103 is connected to the pin 10 1 is the central narrow portion of the clasp 103. It is formed between the 103a and the central narrow portion 100a of the bracket 100 so that the rod 12 can vibrate in the slot 106.

The filter cloth detecting device M5 of the sixth embodiment can easily insert the rod 12 for holding the lower ends of the filter cloth 10-1, 10-2 into the slot 106 or remove it from the slot. The work effect is excellent.

40 and 41 are related to the filter cloth device (S2) of the second embodiment according to the present invention, wherein the filter cloth device (S2) is provided with a filter cloth holding device (L2), the filter cloth holding device ( A support rod 71 for supporting the upper end of the 70, a pair of brackets 73 fixed to both sides of the filter plate 8 and extending upward from the upper side of the brackets 73 so as to face each other. A pair of opposing pins 74 and a pair of coil springs 75 suspended from the pins 74 are provided.

Openings 72 are formed in the center to accommodate the supporting rods 71, and both ends of the supporting rods 71 inserted through the openings 72 of the filter cloth 70 are connected to the pair of coil springs 75. It is elastically supported so that both halves of the filter cloth 70 may cover both filter surfaces of the filter plate 8, respectively. Since the structure of the other part of the filter cloth device S2 of the second embodiment is similar to that of the filter device S of the first embodiment, other detailed descriptions are omitted.

42 and 43 show a filter cloth device (S3, S4) of the third and fourth embodiments according to the present invention, wherein the filter cloth device (S3, S4) is provided with respective filter cloth holding devices (L3, L4). In the filter holding devices L1 and L2 in the first and second embodiments, a pair of rods 12 for holding the lower ends of the filter cloths 10-1, 10-2, 70 are adjustable. While it is installed so as to determine the amplitude of the rod 12 and to adjust the position of the filter cloth, in the filter cloth apparatuses S3 and S4 of the third and fourth embodiments, as shown in FIG. 220 is connected to the support rods (11, 71) to support the upper end of the filter cloth (10-1, 10-2) is able to properly adjust the upper and lower vibration of the support rod (11).

That is, as shown in FIG. 44, the amplitude adjusting device 220 includes an outer rib 221, an inner rib 222 provided in the outer rib 221, and a coil spring wound around the inner rib 222. 223, the bottom rib 224 which is screwed with the lower outer peripheral surface of the outer rib 221, the bracket 225, the hinge pins (14, 74) are provided on the outer surface of the upper wall of the outer rib 221 Consisting of a nut 226, a coupling bolt 227, a nut 228 connected to the coupling bolt 227, and a fixture 229 attached to a lower end of the coupling bolt 227. The rib 221 and the inner rib 222 are movable relative to each other, while the inner rib 222 has a spiral hole 222b and an upper flange 222a formed at the bottom thereof, and a bottom rib 224 Has a bottom wall 224a. Therefore, the upper and lower ends of the coil spring 223 are supported between the upper flange 222a of the inner rib 222 and the bottom wall 224a of the bottom rib 224, and the bracket 225 has a hinge pin 14. And 74 are fastened as nuts 226.

In addition, the coupling bolt 227 is spirally coupled in the spiral hole 222b of the inner rib 222, so that the height of the coupling bolt 227 is properly adjusted to fix the position as the nut 228. The fastener 229 fastened to the lower end of the coupling bolt is arranged to support both ends of the support rods 11 and 71.

In the above described filter cloth holding apparatuses S3 and S4, the upper limit of the vibration of the upper support rods 11 and 71 is that the upper flange 222a of the inner rib 222 is in contact with the inner surface of the upper wall of the outer rib 221. On the other hand, the lower limit of the vibration of the support rods 11 and 71 is determined by the maximum compression length of the coil spring 233 and the position of the coupling bolt 227.

On the other hand, in the filtration device S3 of the third embodiment, since the pair of filter cloths 10-1, 10-2 is V-shaped and subjected to tension, Each rod 12 for holding the bottom is supported by a bracket 231 in which two long holes 230 are formed.

In addition, in the filtration apparatus S4 of 4th Example, a pair of rod 12 is provided in the free state as shown.

As described above, the filter cloth device according to the present invention can easily remove the filter cake attached to the filter cloth as the whole filter cloth is vibrated when the filter plates are separated from each other, thereby improving the filtering capacity of the compressed filter. .

In addition, in the filter cloth device according to the present invention, even if the thickness of the filter plate and the compression stroke of the filter plate are changed, the slurry transfer plate does not need to be displaced, but merely the displacement of the thrust member.

Claims (7)

A pair of first and second positions positioned between at least a pair of first and second filter plates 8 and the first and second filter plates 8 in which the first and second slurry transfer openings 8a are formed. 1st and 2nd which are equipped with the filter cloth 10-1, 10-2, and communicate with the 1st and 2nd slurry conveyance opening part 8a to said 1st and 2nd filter cloth 10-1, 10-2 mentioned above. In the filter cloth device of the fixed filter type compression filter in which a two-slurry hole (10a) is formed and the filter chamber (21) is formed between the filter cloths when the first and second filter plates (8) are in close contact with each other. , First and second support members for supporting the upper ends of the first and second filter cloths 10-1 and 10-2, elastic members for vibrating the support members, and lower ends of the first and second filter cloths; The first and second filtration cloths 10-1 and 10-2 are attached to the fixing member 12 and the first filter cloth 10-1, which are fixed to the lower part of the filtration plate 8, so that the first and second The first and second filter plates 8 and 8 are provided with first and second slurry transport plates 22-1, which allow the second filter plate 8 to vibrate with each of the filter cloths 10-1 when separated from each other. The slurry transfer passage 30 for injecting the slurry to be filtered into the filter chamber 21 when the first slurry transfer plate 22-1 communicates with the first and second slurry holes when the) is closely adhered to each other. To form a slurry through the slurry transfer passage 30 and one of the first and second slurry holes 10a corresponding thereto from the first and second slurry transfer openings 8a. Over filter cloth unit of the compression filter, it characterized in that to become transferred to the filtration chamber (21). The filter cloth according to claim 1, wherein the first slurry conveying plate (22-1) is formed with a radially extending through-opening portion (25b) such that the through-opening portion (25b) forms a slurry transport passage (30). Device. The second slurry transport plate 22-2 is attached to the second filter cloth 10-2 so as to be positioned between the first and second filter cloths 10-1, 10-2. When the two filter plates 8 are separated from each other, the second filter cloth 10-2 vibrates together with the second slurry transfer plate 22-2, while the first and second filter plates 8 are in close contact with each other. When the first and second slurry transfer plate (22-1, 22-2) to maintain a constant distance in the axial direction of the first and second slurry transfer opening (8a) to each other to form a slurry transfer passage 30 Filter cloth device characterized in that (S1, S2, S3, S4). 2. The projections 28 are formed in at least one of the first and second slurry transport plates 22-1, 22-2, and the projections 28 are formed in the first and second filtration plates 8, respectively. ) Is in contact with one of the first and the second slurry transfer plate when in close contact with each other to form a gap between the slurry transfer plate. According to claim 1, wherein the first and second transfer opening (8a) is inserted into the first thrust member 123 and the second thrust member 124, the first and second thrust member (123, 124) When the first and second filtration plates 8 are in close contact with each other, the first and second slurry transport plates 22-1 and 22 come into contact with the second slurry supply plate 22-2 and the first slurry transport plate 22-1. Filter fabric device, characterized in that to form a constant gap between -2). 2. The pair of first and second rods 12 and the first and second rods according to claim 1, wherein the fixing member fixes the lower ends of the first and second filter cloths 10-1, 10-2. First and second fasteners 79 for supporting the distal end of the first and second fasteners 79, which are fixed to the lower ends of the first and second filtration plates 8, The filter cloth device, characterized in that the two rods 12 are vibrated up and down the filter plate (8). 2. The fixing member according to claim 1, wherein the fixing member has a pair of rods 12 for fixing the lower ends of the filter cloths 10-1, 10-2, and the rods 12 are free from the filter plate 8. Filter cloth device, characterized in that.

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