JPS62227415A - Cake releasing device for filter press - Google Patents

Abstract

PURPOSE:To scrape off cake from filter cloth by providing a cake scraping device at the lower section between front and rear stands, moving a truck along a first guide rail and pressure-contacting a cake releasing bar with a filter cloth of a sieve plate. CONSTITUTION:After a cake between filter cloths 5, 5 by self-weight, a truck 10 is transferred to the lower section of a sieve plate 3 along first guide rails 8, 8. At that time, a transfer table 12 is located in the first shunting position C not contacting the filter plate 3. Next, the transfer table 12 is transferred from the first shunting position C to the section 10a of the other side, and a rotating roller 26 of a scraper 26 of the transfer table 12 is transferred from an auxiliary rail 10f to a second guide rail 10b. The scraper 26 is contacted elastically lower end of width direction of filter cloth 5 one by one and scrapes off cake. After that, said rotating roller 26 is transferred from the second guide rail 10b to the auxiliary rail 10f.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cake peeling device for a filter press that peels off cake attached to a filter cloth.

2. Description of the Related Art Conventionally, cake peeling devices of this type are known in various structures. For example, as shown in FIG. 5, in the case of a type in which filter cloth 31 is placed from above on a plate 30 arranged along the longitudinal direction of the filter press between the front and rear stands (not shown), A guide rail 32 is provided on the upper part of the guide rail 32, and a cart 33 is provided on the guide rail 32 so as to be movable back and forth.
When the filter plates 30 are successively opened by providing a peeling rod 34 fixed with a scraper 34a that comes into contact with the cloth and scrapes off the cake so as to be movable up and down, the filter plates 30 with the cart 33 opened can be removed.
．． Located above between 30 and 30, the open frame Sareta hearth plate 30.3
0noP cloth 31,311. : Each peeling rod 3 is in contact with the lower end scraper 34a of the peeling rods 34, 34, respectively.
4 is lowered to forcibly scrape off the cake attached to each filter cloth 31.

Problems to be Solved by the Invention However, such a peeling device is difficult to solve as described above.
In a type of filter press in which a filter cloth is covered from above the plate, there is a large empty space on the t-plate, so the above-mentioned peeling device can be placed in this space to perform cake peeling of the filter cloth. As shown in FIG. 6, the front and rear stands 40.
Above between 41 and 41, there is a hanging device 42. In a filter press constructed by arranging 42 and a pair of filter cloths 44, 44 suspended from above between filter plates 43, 43, front and rear stands 4 are used.
There was a problem that the cake peeling device could not be used because there was no space above the 0.41 mm for arranging the cake peeling device.

Therefore, an object of the present invention is to solve the above-mentioned problems, and to provide a filter press which can be applied to a type of filter press in which the cake of the filter cloth is cut off and the filter cloth is suspended and supported between r plates. The purpose of the present invention is to provide a cake peeling device.

To achieve the above object, the present invention includes a cart that moves back and forth in the longitudinal direction of the filter press below between the front and rear stands, and a cart that moves back and forth in the longitudinal direction of the filter press. A movable table that moves forward and backward along the width direction perpendicular to the longitudinal direction is provided, and the movable table is equipped with a scraper, and the scraper is brought into pressure contact with the filter cloth to scrape off the cake from the filter cloth. That is, a large number of filter plates are sequentially arranged between the front and rear stands along the front-rear direction, a filter cloth is arranged between adjacent r plates, and a filter cloth is arranged between the rear stand and the rearmost P temporary. A movable plate is arranged, the movable plate is moved forward and the plate is tightened to the front stand side to perform filtration, and the movable plate is moved back to open the T-plate, A first guide rail is provided below between the front and rear stands along the longitudinal direction of the filter press, and the first guide rail is provided along the longitudinal direction of the filter press.
It is equipped with a trolley that moves back and forth along guide rails, and
The trolley is provided with a second guide rail along the direction (width direction) orthogonal to the front-rear direction (longitudinal direction of the filter press), the trolley is equipped with a movable stage that moves forward and backward along the second guide rail, and the trolley is equipped with the above-mentioned guide rail. The movable base includes a drive device for moving the movable base forward and backward, and the movable base includes an arm, and the upper end of the arm is provided with a scraper that comes into contact with the filter cloth to scrape off cake attached to the filter cloth. The scraper is configured to include biasing means for pressing the scraper into contact with the filter cloth through the filter cloth.

Effect of the Invention In the above structure, when opening the r-board, the cart is moved in the front-rear direction along the first guide rail to be located below the filter plate to be opened, and after the r-board is opened, , the movable stage is moved by the driving device along the second guide rail of the trolley along the direction orthogonal to the front-rear direction, that is, along the filter cloth surface, and the scraper of the movable stage is brought into contact with the filter cloth to remove the filter cloth from the filter cloth. Scrape off cake.

Embodiments Below, embodiments of the present invention will be described in detail based on the drawings.

The filter press cake peeling device according to this embodiment is as follows:
As shown in Figures 1.2 and 3.4, a pair of first guide rails 8.8 are provided along the longitudinal direction of the filter press below between the front and rear stands 1.2 erected on the installation floor 6. , a trolley 1 that freely moves back and forth along this first guide rail 8.8.
0, the cart 10 is provided with second guide rails tab, tab along the width direction perpendicular to the longitudinal direction of the filter press, and the movable table 12 is actuated as a drive device along the second guide rails 10b, lOb. The movable table 12 is configured to be moved forward and backward freely by the drive of the drive motor 16, and is equipped with scrapers 26 and 26 via a pair of arms 30 and 30, respectively. .3, the carriage 10 is positioned along the first guide rail 8° 8 below the plate 3, and when the plate 3 is opened, the drive motor 16 drives the carriage I2 along the width direction of the filter press. The second guide rail 1 extends from one end of the filter plate 3 in the width direction to the other end.
The scraper 26 supported by each arm 30 of the movable table 12 is moved along ob and tob, and the scraper 26 is attached to a pair of opposing filter cloths suspended between the r plates 3.3 using a known suspension support device. 5, and in this state, the pair of scrapers 26, 26 are moved along the surface of the filter cloth in a generally horizontal direction so as to scrape off the cake from the cloth 5.

The pair of first guide rails 8.8 are provided at the lower part between the front and rear stands 1.2 along the longitudinal direction of the filter press and outside the space below the filter plate along the width direction of the filter press. As shown in FIG. 2, each of the first guide rails 8 has a roughly E-shaped cross section, and a chain 19 is hooked and rotated from the lowest guide surface 8d to the middle guide surface 8c. , a pair of chains 19, 19 on both sides in the width direction of the filter press are synchronously rotated forward and backward.

The trolley 10 is located in a space below the lower end surface of the carriage 3, is located above a pair of first guide rails 8.8, and is located on a pair of sides along the first guide rails 8.8. Part 10a,
10c, and a pair of front and rear U-shaped second guide rails 10b, l that are longer than the widthwise dimension of the filter plate 3 along the widthwise direction of the filter press and connect the above-mentioned both side portions 10a, loa.
It consists of a rectangular frame made up of Ob. Each of the side portions lOa and 10c has a rotary shaft 15.
14, the chain 13 is passed between both rotating shafts 15 and 14 in parallel with the second guide rail tab, and the drive plate is provided outside the space below the filter plate and on the upper surface of the one side 10a. A motor 16 is provided, and the driving force of the drive motor 16 is transmitted to one rotating shaft 15 via a pulley 17 to rotate the chain 13 in forward and reverse directions. Further, each side portion 10a, 10c has a pair of front and rear wheels 11.1 at its lower part.
1, each wheel 2 runs on a rail main body 8a projected above the uppermost guide surface 8b of each first guide rail 8, and each chain 19 of the first guide rail 8 is provided with a , each side portion 10a of the truck IO.

The lower end bent portions foe and 10e of the brackets 10d and 10d, which are respectively projected downward from the first guide rail side from 10c, are locked, and the synchronous rotation of the chains 19 and 19 moves the bogie IO.
so that it moves along the longitudinal direction of the filter press. The pair of second guide rails tab are arranged such that their opposing inner surfaces are flat, and each outer surface has a recessed portion.

Near each side of the pair of guide rails tob and tob, auxiliary rails for and lOf are provided inside the pair of guide rails tob and tob, respectively, so that the distance between the second guide rails 10b and 10b is adjusted to the sides 10a and lOf.
Try to narrow it down gradually as you move towards the oc.

The moving platform 12 includes the pair of second guide rails 10b,
It is arranged so as to be sandwiched between tabs and freely moves forward and backward along the second guide rails lOb and 10b.

The movable platform 12 has a roughly box-like shape, and small wheels 2 are attached to the upper portions of the front and rear surfaces via brackets 20 and 20, respectively.
1.21, each pair of small wheels 21, 2 I on the front and rear surfaces.
are fitted into the outer recesses of each of the second guide rails 10b from the front and back directions, and the movable platform 12 is moved between the pair of second guide rails l.
Provide smooth guidance along Ob and lOb.

The pair of arms 30 and 30 are attached to the bottom of the moving table 12.
Support the bottom edge of. Each arm 30 has a rotation shaft 23,
The rotary plate 18, the support shaft 24, and the bracket 31 are combined in a stepped manner. That is, the pair of rotating shafts 23, 23 arranged in parallel in the front-rear direction are rotatably provided, and a torsion spring 22 as a biasing means is fitted into the outer periphery of each rotating shaft 23, so that the rotating shaft 23 is rotated at a predetermined position. Rotate in the direction.

The rotating plate 18 is fixed to the upper end of the rotating shaft 23,
The support shaft 24, which is eccentric with respect to the axis of the rotation shaft 23, is fixed to the rotation plate 18. A rotating roller 25 is rotatably fitted into the outer periphery of the upper end of this support shaft 24, and rolls in pressure contact with the inner surface of each guide rail lOb, and rolls between the pair of small wheels 21 and 21 of each second guide rail. Slide it so that the tab is in between. The scraper 26 is fixed to the upper end of the support shaft 21t via the bracket 3.

The scraper 26 has a filter cloth contacting portion made of a rubber spatula, a brush, or the like, and is configured to come into contact with the lower end of the filter cloth 5 to which cake is most likely to adhere, and scrape off the cake adhered to the filter cloth 5. Therefore, due to the biasing force of the torsion spring 22, the scraper 26 contacts the filter cloth 5 via the rotating shaft 23, the rotating plate 18, the supporting shaft 24, and the bracket 3I, that is, the direction indicated by the arrow in FIG. It is constantly rotated in the direction. When the rotating roller 25 rolls on the inner surface of the second guide rail 10b, each scraper 26 is located at the contact position B and comes into elastic contact with each filter cloth 5, while the movable table 12 is moved up to the vicinity of the side of the cart. When the rotating roller 25 moves and contacts the inner surface of the auxiliary rails tof and tor provided at each end between the pair of second guide rails 10b and 10b and rolls, it rotates under the guidance of the auxiliary rails IOf and lOf. The rollers 25 and therefore the support shafts 24 are forcibly rotated in a direction in which they approach each other, that is, in a direction opposite to the rotation urging direction, against the biasing force of the torsion spring 22, and the scraper 26 is moved away from the filter cloth 5. Located at a remote, non-contact position A. Accordingly, when the scrapers 26 of the movable table 12 are located at the respective retracted positions between the pair of second guide rails 10b, 10b and near the side portions 10a, 10c, each scraper 26 is placed in the non-contact position A1. Each scraper 26 is positioned further outward in the width direction of the filter plate than the lower end ear part 3a of the T-plate 3 to prevent each scraper 26 from contacting the T-plate 3 even if the cart IO moves along the first guide rail 8.8.

Furthermore, the chain 13, which is passed between the rotating shafts 15 and 14 of the both sides 10a and 10c of the cart 10, is secured to both sides of the moving table 12 along the width direction of the filter press. By the forward and reverse rotation of 13, the movable base 12 moves forward and backward between the pair of second guide rails tab, tab.

In addition, in FIG. 3, 28 is one side eJ of the above-mentioned trolley 10.
10a is equipped with a roller 29 via a bracket 28, and when the filter plates 3 are fed one by one to be opened, a trolley 1 is placed on the side of the T-plate 3 to be opened next.
0 is advanced along the first guide rail 8.8, and when the roller 29 comes into contact with the lower edge portion 3a of the T-plate 3 which is opened in the above manner, the carriage 10 moves and the pair of chains 19.1
This is to stop the rotation of 9.

According to the above configuration, the movable plate 7 is advanced toward the front stand L side by the guide of the beam 4°4, all the r plates 3°..., 3 are tightened to perform the f passage, and then the movable plate 7 is moved back. Then, the filter plates 3 are sequentially opened. That is, first, f timely, trolley 1
0 is located on the rear side of the movable plate 7, and after the filtering is completed, the movable plate 7 is moved back and a pair of filter cloths 5 located between the movable plate 7 and the first P plate 3 are removed. .5 The cake sandwiched between the two is caused to fall downward due to its own weight. Next, the first one? The cart 10 is moved along the first guide rail 8.8 to the bottom of the plate 3, and is placed on standby at a position where the limit switch 27 abuts the lower edge portion 3a of the first plate 3. In this state, the movable table 12 is located at the first retracted position C near the side opposite to the drive motor 16 and outside the lower end lug 3a of the T-plate 3, and is prevented from coming into contact with the filter plate 3. ing. and,
Drive the drive motor 16 to move the chain 13 to both rotating shafts 15
．． 14 to move the movable table 12 from the first retraction position C near one side foe toward the other side 10a, and rotate the rotating roller 25 of the support shaft 24 of each scraper 26 of the movable table 12. is rolled from the inner surface of the auxiliary rail 10f to the inner surface of the second guide rail 10b, and each torsion spring 22
Each support shaft 24 is rotated in the rotational urging direction around each rotating shaft 23 by the urging force of , and each scraper 26 is positioned from a non-contact position A to a contact position B and attached to the lower end of each filter cloth 5. the filter cloth 5 in order from the width direction side edge of the filter cloth 5.
scrape off any cake adhering to the surface. When each scraper 26 moves to the other end in the width direction of each filter cloth 5 and finishes scraping off the cake on each filter cloth 5, each rotating roller 25 rolls from the inner surface of each second guide rail lOb to the inner surface of auxiliary rail lOf. Then, each support shaft 24 of each scraper 26 is connected to each torsion spring 2.
The scrapers 26 are rotated in the opposite direction to the above about the rotation shafts 23 against the biasing force of 2, and each scraper 26 is moved from the filter cloth contact position B to the non-contact position A and separated from the filter cloth 5. 12 is located at the second retracted position near the other side 10a. Next, the frame of the first filter plate 3 is opened, and a pair of filter cloths 5 located between the first filter plate 3 and the second R plate 3 are removed.
The cake sandwiched between , 5 and 10
The second guide rail 10b and tob are passed through and dropped downward. Next, the drive motor 16 is driven in the opposite direction to move the movable table 12 from the second retracted position near the other side 10a toward the one side 10c, so that each scraper 26 of the movable table 12 is moved from the second retracted position near the other side 10a. from the contact position A to the contact position B, and elastically contact the lower end of each filter cloth 5.
The cake adhering to the filter cloth 5 is scraped off from the other end in the width direction. When each scraper 26 moves to the widthwise side edge of each filter cloth 5 and finishes scraping off the cake on each filter cloth 5, each scraper 26 is moved from the filter cloth contact position B to the non-contact position A and the filter cloth 5 and move the moving table 12 to one side 10c.
It is located at the first evacuation position C nearby. Next, the truck IO is moved along the first guide rail 8.8 until the limit switch 27 comes into contact with the second T-plate 3. Next, the second plate 3 is moved back to open the frame, and the cake is dropped by its own weight between the second guide rails lob and tab, and then the drive motor 16 is driven in the opposite direction to the previous one. 2 and move the movable table 12 from the first retracted position C toward the second retracted position, move each scraper 26 from the non-contact position to the contact position B, and bring it into elastic contact with each filter cloth 5, Scrape the cake off each filter cloth 5 as described above. In this way, each time one filter plate 3 is opened, the movable table 12 is alternately advanced and retreated between one side 10a and the other side 10c of the cart IO to sequentially peel off the cake from the filter cloth 5. let

The cake peeling device according to the above embodiment is not limited to the type of filter press in which the filter cloth 5 is hung from above between the filter plates 3. It can also be fully applied to a cover-type filter press.

According to the above embodiment, a cake peeling device is provided at the lower part between the front and rear stands 1.2, and the cart 10 is moved along the first guide rail 8.8 and positioned below the T-board 3 to be opened. , each scraper 26 is elastically pressed into contact with each filter cloth 5 of the filter plate 3 so that the cake can be scraped off from each filter cloth 5 by each scraper 26, so that the filter cloth 5 can be scraped off from each filter cloth 5 on the plate 3 from above. Not only filter press of cover type but also filter plate 3
The cake scraping type cake peeling device of this embodiment can be applied to a type of filter press in which a filter cloth 5.5 is suspended and supported from above between 3 and 3 degrees, and the cake peeling device can be made simple. It can be done.

Further, by driving a single drive motor 16, a pair of scrapers 26.26 are moved, and a pair of filter cloths 5.5 facing each other are moved.
The cake was scraped off by pressing it into contact with the
Cake peeling work can be performed efficiently.

Further, since the scraper 26 is elastically pressed into contact with the filter cloth 5 by the biasing force of the torsion spring 22, the scraper 26 can be brought into contact with the filter cloth 5 even if the filter cloth 5 is slack. , the cake can be reliably peeled off from the cloth 5.

Furthermore, since the trolley IO is made into a rectangular frame so that a space can be secured between the pair of second guide rails 10b, 10b, even if the cake falls naturally due to its own weight when the r-plate 3 is opened, the trolley IO This will not prevent the cake from falling.

Note that the present invention is not limited to the above embodiments,
It can be implemented by various other @-sama. For example, the cake may be peeled off from the filter cloth 5 by reciprocating the movable table 12 with respect to each filter cloth 5 between the both sides 10a of the cart 1o and loc.

Moreover, either one of the second guide rails 10b or both of the second guide rails 10b in the bogie IO.

A recess is formed in the inner surface of 10b, and the above-mentioned truck 1 is inserted into this recess.
The chain 13 driving the 0 may be arranged so that the chain 13 does not impede the fall of the cake at all. Further, the means for rotationally biasing the support shaft 24 is not limited to the torsion spring 22, but other biasing means such as a miniature cylinder may be used to rotationally bias the support shaft 24 to rotate the scraper 26.
It may be made to come into elastic pressure contact with the cloth 5. In addition, when the scraper 26 is used as a brush, a large number of holes are made in the brush support surface of the scraper 26, and several people blow out cleaning water or compressed air to remove the filter cloth 5 from which the cake has been removed or the cake. The filter cloth 5 may be washed during the cleaning.

Moreover, the scraper 26 and the first guide rail 8 may be configured by one piece.

Effects of the Invention According to the above configuration, a cake peeling device is provided at the lower part between the front and rear stands, and the cart is moved along the first guide rail to position the cart below the filter plate to be opened. Since the cake peeling rod is brought into pressure contact with the filter cloth and the cake is scraped off from the filter cloth, it is possible to use not only a filter press that covers the filter cloth from above but also a filter press that covers the filter cloth from above between the filter plates. The cake scraping type cake peeling device of the present invention can be sufficiently applied to a type of filter press that suspends and supports a cloth, and the structure of the cake peeling device is simple. In addition, since the cake peeling rod is brought into pressure contact with the filter cloth by the urging force of the urging means, even if the filter cloth is slack, the cake peeling rod can follow the filter cloth and come into contact with it. The cake can be reliably peeled off.

[Brief explanation of drawings]

FIG. 1 is a schematic front view of a filter press equipped with a cake peeling device for a filter press according to an embodiment of the present invention, and FIGS. 2, 3, and 4 are a front view, a top view, and a side view of the cake peeling device, respectively. 5.6 are front views of filter presses each equipped with a conventional cake stripping device. 1.2... Front and rear stands, 3... Filter plate, 4... Beam, 5... Filter cloth, 6... Installation floor, 7... Movable plate, End... First guide rail , 8a...Rail body, 8b
, 8c, 8d... guide surface, lO... trolley, loa,
10c...Side part, 10b...Second guide rail, 10
d...Bracket, 10e...Bent part, lOr...
・Auxiliary rail, 11...Wheel, 12...Moving platform, l
3,19... Chain, 14.15... Rotating shaft,
16... Drive motor, 17... Pulley, 18...
Rotating plate, 20.28.31... Bracket, 21...
・Small wheel, 22...Torsion spring, 23...Rotation shaft,
24... Support shaft, 25... Rotating roller, 26...
Scraper, 27...Limit switch, 29...
Roller, 30... Arm, A... Non-contact position, B...
...Contact position, C...First retraction position. 'Patent applicant Kurita Kikai Seisakusho Co., Ltd. Agent Patent attorney Aoyama Aoyama and 2 others if 1. a Figure 5 Figure 6

Claims (1)

[Claims] (1) A large number of filter plates (3) are sequentially arranged between the front and rear stands (1, 2) along the front and rear direction, and filter cloths (5) are arranged between adjacent filter plates, and the rear stand ( 2)
A movable plate (7) is arranged between the front stand (1) and the rearmost filter plate (3). In a filter press that is tightened to perform filtration and the movable plate (7) is moved back to open the frame of the filter plate (3), a longitudinal direction of the filter press is provided below between the front and rear stands (1, 2). A first guide rail (8) is provided along the first guide rail (8).
A truck (10) that moves back and forth along a guide rail (8) is provided, and a second guide rail (10) is provided on the truck (10).
b) along the direction orthogonal to the fore-aft direction, and moves back and forth along the second guide rail (10b).
2) on the trolley (10), and further includes the moving platform (
12) is provided with an arm (30), and a scraper (26) is provided at the upper end of the arm (30) in contact with the filter cloth (5) to scrape off cake adhering to the filter cloth (5), and further the scraper (26) via the arm (30);
A cake peeling device for a filter press, characterized in that it is equipped with a biasing means (22) for pressing the filter cloth (5) into contact with the filter cloth (5).