JP7187760B2 - How to replace the filter press and filter press parts - Google Patents

Description

The present invention relates to a filter press with easily replaceable parts and a method for easily replacing filter press parts.

A conventional filter press has a row of filter plates suspended on a pair of rails spanning between frames, and a movable head for moving or tightening the filter plates is provided at one end of the row of filter plates.
Further, Patent Document 1 discloses a filter press in which a wheel is rotatably attached to a movable head and the movable head is supported on a rail via the wheel so that the movable head can move freely on the rail. .

On the other hand, in order to improve the filtering capacity of filter presses, high-pressure compression and multi-chambered filter plates have progressed, and along with this, large, strong castings and canned welded structures have come to be used for movable heads. . Such a movable head is heavy, and excessive loads are applied to the wheels that support the movable head on rails, the axles of the wheels, and the bearings inside the wheels (hereinafter, generally referred to as rollers). Therefore, rollers are periodically replaced as consumables.

Japanese Utility Model Publication No. 61-45851

When replacing the roller, temporarily lift the movable head and remove the roller from the movable head. Here, since the movable head is heavy, it is necessary to lift it using a crane or the like. Facilities are often scarce.
Therefore, in order to lift the movable head, large-scale construction such as replacement of the crane and installation of a portal crane was required.
The present invention provides a filter press and a method for replacing filter press parts that can easily replace rollers attached to a movable head without using a large crane.

A pair of guide rails supported by the front frame and rear frame, multiple filter plates movably arranged side by side on the guide rails, a movable head placed behind the row of filter plates, and detachable on both sides of the movable head. A filter press equipped with a roller that moves on a guide rail with a shaft and an opening and closing device that is connected to a movable head and moves back and forth, and has a slide plate that can be detachably fixed to the upper part of the guide rail and can be divided into a plurality of parts. Thus, the roller can be easily replaced by attaching and detaching the slide plate.

By providing support beams supported by a lifting device on both sides of the movable head, the movable head can be supported and the rollers can be replaced.

By providing the guide rail with a pedestal for installing a jack, the roller can be replaced by supporting the movable head without using a crane.

The roller has a concave portion on its peripheral surface, and the convex portion on the upper surface of the slide plate and the concave portion of the roller are fitted to prevent the roller from falling off the guide rail.

A filter press that has detachable rollers on both sides of the movable head and moves the rollers on a pair of guide rails to open and close the filter plate. At least one side of the movable head is supported by a lifting device, the slide plate adjacent to the slide plate below the roller is removed, the slide plate below the roller is moved to the position where the slide plate was removed, and the roller is moved from the movable head. By removing and replacing the roller, the roller can be easily replaced without using a large lifting device.

A filter press that has detachable rollers on both sides of the movable head and moves the rollers on a pair of guide rails to open and close the filter plate. a part of the slide plate is removed from one of the guide rails, the roller is moved to the position where the slide plate is removed, and the roller is removed from the movable head and replaced, thereby replacing the roller without using a lifting device. can be done.

The present invention makes it possible to divide the slide plate fixed on the guide rail, remove the slide plate when replacing the roller, and form a gap between the roller and the guide rail so that the roller can be easily taken out in the axial direction. be able to.

If the movable head is supported by a lifting device such as a jack, a crane is not required and large-scale construction work is not required.
Since the roller can be replaced by supporting only one of the rollers on the sides of the movable head, the roller can be easily replaced if there is a crane with a lifting load that corresponds to half the load of the movable head. Therefore, the rollers can be replaced even at an airport where there is no large crane whose lifting load corresponds to the load of the movable head.

1 is a side view of a filter press according to the invention; FIG. Similarly, it is a principal part side view of a movable head. Similarly, it is sectional drawing of a roller. Similarly, it is a principal part side view of a guide rail. Similarly, it is explanatory drawing of the removal procedure of a roller. Similarly, it is a front view of a lifting device. Similarly, it is explanatory drawing 1 of the removal procedure of the roller in other Example. Similarly, it is explanatory drawing 2 of the removal procedure of the roller in other Example. Similarly, it is explanatory drawing 3 of the removal procedure of the roller in other Example. Similarly, it is explanatory drawing 4 of the removal procedure of the roller in other Example. FIG. 4 is a side view of another embodiment of a filter press according to the invention;

1 is a side view of a filter press according to the present invention; FIG.
The filter press 1 includes a front frame 2 and a rear frame 3 arranged in the front and rear, a pair of guide rails 4 supported on the left and right of the front frame 2 and the rear frame 3, and a plurality of filters movably arranged side by side on the guide rails 4. It comprises a plate 5, a movable head 6 arranged behind the rows of the filter plates 5, and an opening/closing device 7 connected to the movable head 6 to move it back and forth. The opening/closing device 7 is placed on the rear frame 3 and is telescopic. The filter plate 5 is loosely connected to the movable head 6 by a chain 8 or the like, and is opened and closed by the expansion and contraction of the opening and closing device 7 .

FIG. 2 is a side view of the main parts of the movable head according to the present invention.
A roller 9 for supporting the movable head 6 on the guide rail 4 is axially attached to the side surface of the movable head 6 . At least one roller 9 is arranged on one side of the movable head 6, and rollers 9 are also arranged symmetrically on the other side. By arranging one or more sets on both sides of the movable head 6 and placing the rollers 9 on the guide rails 4, the movable head 6 is supported so as to be freely movable in the front-rear direction on the guide rails 4. FIG. 1 and 2 show an example in which a pair of rollers 9 are arranged on both sides of the movable head 6. FIG.

Further, support beams 10 are provided on both side surfaces of the movable head 6, and pedestals 11 are provided on both side surfaces of the guide rails 4. As shown in FIG. The support beam 10 and the pedestal 11 are used to temporarily support the movable head 6 when the roller 9 is replaced. A movable head 6 can be supported.

FIG. 3 is a cross-sectional view of a roller according to the invention.
The roller 9 is composed of a wheel 9a, an axle 9b of the wheel 9a, and a bearing 9c. The roller 9 is axially attached to the movable head 6 by inserting the axle 9 b of the roller 9 into the shaft hole 13 provided in the movable head 6 . A valley-shaped concave portion 14 is formed on the peripheral surface of the cylindrical wheel 9a.

A groove portion 15 is formed in the upper portion of the guide rail 4 . A slide plate 17 having a mountain-shaped protrusion 16 formed on its upper surface is placed in the groove 15, and the slide plate 17 is detachably fixed to the guide rail 4 with screws or the like. By placing the rollers 9 on the protrusions 16 on the upper surface of the slide plate 17 , the rollers 9 move on the slide plate 17 . Also, the movable head 6 is supported by the guide rail 4 via rollers 9 . The slide plate 17 prevents the roller 9 from falling off from the guide rail 4 by fitting the concave portion 14 of the roller 9 with the convex portion 16 of the slide plate 17 .

When the roller 9 is placed on the slide plate 17, the size of the roller 9 and the height of the slide plate 17 do not matter as long as the maximum diameter portion of the roller 9 having the concave portion 14 does not interfere with the guide rail 4. In this embodiment, the uneven roller 9 and the slide plate 17 are used, but a flat roller 9 and a flat slide plate 17 may be used if a drop prevention mechanism is separately provided.

FIG. 4 is a side view of the essential part of the guide rail according to the present invention.
The slide plate 17 placed on the guide rail 4 is divided into a plurality of parts in the longitudinal direction and fixed to the guide rail 4 with screws or the like. The divided slide plates 17 have the same length, screw holes, and the like. As shown in FIG. 4, a slide plate 17a below the roller 9 and an adjacent slide plate 17b are detachably fixed to the guide rail 4. As shown in FIG. The width of the divided slide plates 17a and 17b in the longitudinal direction is appropriately determined according to the diameter of the roller 9. As shown in FIG. When replacing the rollers 9, the slide plate 17 is appropriately removed from the guide rails 4, and a gap is provided between the rollers 9 and the guide rails 4 so that the rollers 9 can be removed in the axial direction. The roller 9 may be replaced by removing the axle 9b, or only the wheel 9a may be replaced.

It should be noted that the slide plate 17 may have a divided structure only for the roller 9 replacement place, and the other slide plate 17 may be integrally formed. Since the slide plate 17, which is not detachable when replacing the roller 9, does not need to be removed from the guide rail 4, it may be attached by welding. The procedure for removing the roller 9 will be described in detail below.

FIG. 5 is an explanatory diagram of the procedure for removing the roller 9 according to the present invention.
FIG. 5(a): First, in order to eliminate the load applied to the slide plate 17a below the roller 9, the support beams 10 provided on both sides of the movable head 6 are supported by a lifting device 12 such as a jack. The roller 9 need not be lifted beyond the height of the projection 16 of the slide plate 17, and the roller 9 can be replaced if the load of the movable head 6 is not applied to the slide plate 17a.

FIG. 5(b): Next, the slide plate 17b adjacent to the slide plate 17a located below the roller 9 is removed from the guide rail 4. As shown in FIG.

FIG. 5(c): Then, the slide plate 17a located below the roller 9 is moved to the position where the adjacent slide plate 17b was arranged. At this time, since the slide plate 17a does not exist below the roller 9, a gap is formed between the roller 9 and the guide rail 4, and the roller 9 can be removed in the axial direction.

After replacing the rollers 9, the slide plate 17 is attached by reversing the procedure described above. In this embodiment, both sides of the movable head 6 are supported by the lifting device 12 and the rollers 9 are replaced. 9 can be replaced. At this time, the lifting width of the lifting device 12 is set to a very small lifting width such that the roller 9 on the side not supported by the lifting device 12 is not subjected to an unbalanced load.

FIG. 6 is a front view of the lifting device according to the present invention.
In FIG. 6( a ), a lifting device 12 (jack) is installed on a pedestal 11 fixed to the side surface of the guide rail 4 , and the support beam 10 fixed to the movable head 6 is supported by the jack 12 .

Further, as shown in FIG. 6B, when the movable head 6 is supported, a pedestal 11 having a flat upper portion and a valley-shaped recess formed in the lower portion is placed on a slide plate 17 on the guide rail 4. You may The concave portion of the pedestal 11 is fitted with the convex portion 16 of the slide plate 17 so that the jack 12 can be installed on the upper portion of the pedestal 11 . The movable head 6 can be supported on the guide rail 4 by installing the jack 12 on the pedestal 11 and supporting the support beam 10 of the movable head 6 with the jack 12 . The load of the movable head 6 is not applied to the slide plates 17 in front of and behind the slide plate 17 on which the pedestal 11 is installed.

When a flat slide plate 17 is used, the jack 12 can be placed on the slide plate 17 without placing the pedestal 11 thereon.

In the above embodiment, the jack 12 is used to support the movable head 6. However, by using the guide rail 4 of the present invention, even if the crane 12 whose lifting load is equal to or less than the load of the movable head 6 is used as the lifting device 12, the roller 9 can be replaced.

In a plant equipped with a filter press, especially in a small-scale plant, the lifting load of the crane 12 is less than the load of the movable head 6, so the crane 12 alone cannot lift the movable head 6. However, by supporting only one support beam 10 on the side of the movable head 6 with a crane 12, the other roller 9 and the load can be dispersed and supported. By setting the lifting width of the crane 12 to a very small lifting width that does not apply an unbalanced load to the other roller 9, if the crane 12 supports half the load of the movable head 6, the movable head 6 can be used. Supportable. If the movable head 6 can be supported, it becomes possible to remove the slide plate 17 and replace the roller 9 in the same manner as in the above embodiment. When one roller 9 is replaced, the other support beam 10 is also supported in the same manner as the one support beam 10, and the other roller 9 is replaced. As described above, even if the crane 12 has a lifting load whose upper limit is equal to or less than the load of the movable head 6, the roller 9 can be easily replaced by providing the slide plate 17 of the present invention. Also, by combining the crane 12 and the jack 12, it is possible to support the movable head 6 from both sides.

7 to 10 are explanatory diagrams of a procedure for removing rollers in another embodiment according to the present invention. 7 to 10 show an example in which two rollers 9 are arranged on one side of the movable head 6, that is, an example in which two sets of rollers 9 are arranged on both sides of the movable head 6. FIG.

In other embodiments, the rollers 9 are replaced without the use of a lifting device 12 such as a jack and crane.
FIG. 7 ( S<b>1 ): First, a portion of the slide plate 17 (shaded portion) is removed from one of the guide rails 4 . As for the slide plate 17, only the slide plate 17 adjacent to the slide plate 17 positioned below the first roller 91 is removed. By removing the slide plate 17 , a portion of the upper portion of the guide rail 4 becomes the groove portion 15 .

FIG. 7 (S2): Next, the opening/closing device 7 is extended and contracted so that the first roller 91 moves to the position (groove portion 15) where the slide plate 17 is removed. Since a gap is formed between the first roller 91 and the guide rail 4 at the position where the slide plate 17 is removed, the first roller 91 is removed in the axial direction and replaced. At this time, the second to fourth rollers 92, 93, 94 are moving on the slide plate 17, and the movable head 6 is supported by the second to fourth rollers 92, 93, 94 and the opening/closing device 7. .

FIG. 8 (S3): After replacing the first roller 91, the opening/closing device 7 is extended and retracted to move the second roller 92 to the position where the slide plate 17 is removed. As with the first roller 91, the second roller 92 is removed and replaced.

FIG. 8 ( S<b>4 ): After replacing the second roller 92 , the opening/closing device 7 is extended and retracted to move the second roller 92 from the groove 15 onto the slide plate 17 .

FIG. 9 (S5): Subsequently, the slide plate 17 is installed in the groove portion 15 of one of the guide rails 4, and the slide plate 17 is removed from the other guide rail 4. FIG. Only the slide plate 17 adjacent to the slide plate 17 positioned below the third roller 93 is removed. By removing the slide plate 17 , a portion of the upper portion of the guide rail 4 becomes the groove portion 15 .

FIG. 9 (S6): Next, the opening/closing device 7 is extended and contracted so that the third roller 93 moves to the position (groove 15) where the slide plate 17 is removed. Since a gap is formed between the third roller 93 and the guide rail 4 at the position where the slide plate 17 is removed, the third roller 93 is removed in the axial direction and replaced. At this time, the first, second and fourth rollers 91, 92 and 94 are moving on the slide plate 17, and the first, second and fourth rollers 91, 92 and 94 and the opening/closing device 7 A movable head 6 is supported.

FIG. 10 (S7): After replacing the third roller 93, the opening/closing device 7 is extended and retracted to move the fourth roller 94 to the position where the slide plate 17 is removed. Like the third roller 93, the fourth roller 94 is removed and replaced.

FIG. 10 ( S<b>8 ): After replacing the fourth roller 94 , the opening/closing device 7 is extended and retracted to move the fourth roller 94 from the groove 15 onto the slide plate 17 . Finally, the removed slide plate 17 is attached to complete the replacement work.

In the other embodiment, two pairs of rollers 9 are arranged on the movable head 6, but even one pair of rollers 9 can be replaced. When replacing one roller 9 on the side of the movable head 6, the movable head 6 can be supported by the other roller 9 and the opening/closing device 7, so the above procedure can be performed without using the lifting device 12 such as a jack and a crane. , the roller 9 can be replaced.

FIG. 11 is a side view of another embodiment of a filter press according to the invention;
As shown in FIG. 11, the present invention can also be applied to a filter press 1a in which a stopper 18 movable back and forth on the guide rail 4 is provided behind the movable head 6 and the opening/closing device 7 is placed on the stopper 18.

The stopper 18 is moved back and forth on the guide rail 4 by an electric motor (not shown) to open and close the five rows of filter plates and the movable head 6 . When the five rows of filter plates and the movable head 6 are closed, the stopper 18 and the guide rail 4 are engaged by an engagement device (not shown), and the opening and closing device 7 is extended to tighten the five rows of the filter plates and the movable head 6. be able to.

Since the stopper 18 has rollers 9 similar to those of the movable head 6 , the rollers 9 can be replaced in the same manner as the movable head 6 .

As described above, since the rollers 9 are arranged on the slide plates 17 provided on the guide rails 4 , a gap is formed between the guide rails 4 and the rollers 9 by removing the slide plates 17 . Therefore, the roller 9 can be attached and detached in the axial direction, and the roller 9 can be easily replaced.
Therefore, the present invention is not limited to the embodiments, and can be widely applied to filter presses in which slide plates are provided on guide rails.

2 Front frame 3 Rear frame 4 Guide rail 5 Filter plate 6 Movable head 7 Opening and closing device 9 Roller 10 Support beam 11 Pedestal 12 Lifting device 14 Concave portion 16 Protruding portion 17 Slide plate

Claims (6)

A pair of guide rails (4) supported by the front frame (2) and the rear frame (3), a plurality of filter plates (5) movably arranged side by side on the guide rails (4),
A movable head (6) arranged behind the row of filter plates (5);
rollers (9) detachably attached to both sides of the movable head (6) and moving on the guide rails (4);
In a filter press equipped with an opening and closing device (7) that is connected to a movable head (6) and moves back and forth,
A filter press characterized by comprising a slide plate (17) detachably fixed to the upper part of a guide rail (4) and divided into a plurality of pieces. 2. The filter press according to claim 1, wherein support beams (10) supported by lifting devices (12) are provided on both sides of said movable head (6). 3. A filter press according to claim 2, characterized in that it comprises a pedestal (11) provided on said guide rail (4) for mounting a jack (12). The roller (9) has a recess (14) on its peripheral surface,
4. A filter press according to any one of claims 1 to 3, characterized in that the convex portion (16) on the upper surface of the slide plate (17) and the concave portion (14) of the roller (9) are fitted. Detachable rollers (9) are provided on both sides of the movable head (6),
In a filter press that opens and closes a filter plate (5) by moving a roller (9) on a pair of guide rails (4),
A slide plate (17) that can be detachably fixed to the upper part of the guide rail (4) and can be divided into a plurality of pieces is provided,
At least one side of the movable head (6) is supported by a lifting device (12),
removing the adjacent slide plate (17b) of the slide plate (17a) below the roller (9);
moving the slide plate (17a) below the roller (9) to the position where the slide plate (17b) was removed;
A method for replacing a filter press part, characterized in that the roller (9) is removed from the movable head (6) and replaced. Detachable rollers (9) are provided on both sides of the movable head (6),
In a filter press that opens and closes a filter plate (5) by moving a roller (9) on a pair of guide rails (4),
A slide plate (17) that can be detachably fixed to the upper part of the guide rail (4) and can be divided into a plurality of pieces is provided,
removing part of the slide plate (17) from one of the guide rails (4);
moving the roller (9) to the position where the slide plate (17) is removed,
A method for replacing a filter press part, characterized in that the roller (9) is removed from the movable head (6) and replaced.

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