JPS6236487Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention is a filter press that separates a stock solution into a liquid and a cake by straining or squeezing, and removes the cake attached to each plate or the cloth used for squeezing. The present invention relates to a cake removing device.

Conventional technology Conventionally, filter presses have been equipped with a cake removing member such as a scraper on the surface of the cloth to remove cake adhering to the cloth by allowing the undiluted solution to pass through when the plate is opened. There is a device in which the cake is introduced from above and pressed against each cloth surface, and the scraper is moved downward to remove cake from the cloth surface.

However, the above-mentioned scraper simply moves up and down between the open boards, and cannot swing according to the unevenness of the board and cloth surfaces. remain or
Alternatively, when the scraper is brought into pressure contact with the cloth surface in order to completely remove the cake, there is a problem in that the scraper comes into contact with the convex portions of the plate and the cloth, damaging the plate and the cloth.

Purpose of the invention The present invention was made in order to solve the above problem, and the cake removing scraper is pressed against a cloth curved according to the unevenness of the plate by pressing and urging means, and the actuator is driven. To provide a cake removing device which enables the scraper to move to follow the cloth, thereby effectively peeling off and removing the cake attached to the surface of the cloth, and reliably preventing damage to the cloth. The purpose is to

Structure of the invention In other words, the invention consists of a guide beam installed between the front and rear stands above a plurality of plates, a movable table that is movable in the front and back directions of the filter press along the guide beam, and a movable table that is attached to the movable table in the vertical direction a lifting table which is movably supported by an actuator and which can enter between the opened plates, and a scraper which is rotatably supported by the lifting table at a position parallel to the plate surface and has an edge for cake removal. and a pressing means provided on the lifting platform to press and urge the cake removing edge of the scraper toward the cloth, and a pressurizing means that passes through a central opening in the bottom of the moving platform and is connected to the center of the top surface of the lifting platform. and a pair of regulating rollers supported at the front and rear of the filter press via stays protruding below the bottom surface, the lifting platform is moved relative to the movable platform by the drive of the actuator.
The present invention provides a novel cake removing device for a filter press, which is characterized in that it can freely move up and down in the vertical direction while going in and out between the pair of regulating rollers.

Embodiments Hereinafter, the present invention will be specifically explained based on illustrated embodiments.

The filter press to which the cake removal device of this embodiment can be attached has a large number of plates suspended between the front and rear stands, and after tightening the plates on the front stand side with a movable plate, the undiluted solution is press-fitted and filtered. After opening the frame of the rear plate and removing cake adhering to the surface of the pair of cloths interposed between adjacent plates and washing the cloths, tighten the plate to the front stand side again using the movable plate and proceed to the next step. This is a well-known thing to do.

As shown in FIG. 1, the cake removing device attached to the filter press includes a pair of guide beams 1, 1, a moving table 2, a lifting table 3, an air cylinder 4 as an actuator, scrapers 5, 5, and a pressing force. It is generally composed of scraper support rollers 7, 7 which are coil springs 6, . . . , 6 as means and regulating rollers 8, 8 as regulating members.

The guide beams 1,1 have a number of plates 9,...,
It is a pair of U-shaped members installed between the front and rear stands above the guide beams 9, and supports the movable table 2 between both guide beams.

The movable table 2 is a box-shaped member, and guide rollers 10, . Chain 11, 11
By running, the filter press can be freely moved in the front and rear directions of the filter press.

At the center of the bottom surface of the moving table 2, there is an air cylinder 4 extending vertically upward through the center of the top surface and extending outward.
has been established. The rod tip 4a of the air cylinder 4 passes through the center opening 2a of the bottom surface of the movable table 2, is connected to the center of the top surface of the lifting table 3, and extends downward from both front and rear corners of the bottom surface, respectively. Stays 12, 12; 12,
The regulating rollers 8, 8 are supported at the front and rear of the filter press via the filter press 12, and the elevating table 3 moves up and down with respect to the movable table 2 by driving the air cylinder 4, moving in and out between the front and rear regulating rollers 8, 8. It is designed to be able to move up and down freely in any direction.

The elevating table 3 has stays 13, 13 protruding from the front and rear of a rectangular base plate 3a, respectively, to pivotally support the scraper support rollers 7, 7. Screw coil springs 6, 6 are attached to both ends of each scraper support roller 7, and scrapers 5, 5 are supported on the outer surface via scraper support plates 14, . The formed cake removing edge 5a is rotatably biased in a direction in which it comes into pressure contact with the cloth 15 of the plate 9. On the other hand, on the side opposite to the mounting position of the scraper support plate 14 with respect to the axis of the scraper support roller 7, there is a bracket 1.
A weight 17 is provided through the scraper 6, and by changing the weight of the weight 17, the pressing force of the edge 5a of the scraper 5 against the cloth 15 can be adjusted, so that the edge 5a of the scraper 5 is always
It enters between the cloth 15 and the cake 18 attached to the cloth 15, so that the cake 18 can be removed from the cloth 15 well. Therefore, when the elevating table 3 is raised by the drive of the air cylinder 4 and is housed between the regulating rollers 8, 8 on the front and rear of the movable table 2, the cloth 15 of the plate 9 is lifted by the coil springs 6, 6.
The support plates 14, .
Along with the rotation of the regulating roller 8, the support plates 14,...,
14 is forcibly rotated in the opposite direction against the rotation biasing force of the coil spring 6, the distance between the edges of the front and rear scrapers 5, 5 is reduced, and eventually the edge 5a of the scraper 5 is rotated upward and downward. The lifting table 3 is housed between both regulating rollers of the movable table 2 in a state where the direction is substantially downward. On the other hand, when the lifting platform 3 separates from between the regulating rollers of the movable platform 2 and descends due to the drive of the air cylinder 4, the regulating roller 8
As the scraper 5 that was in contact with the regulating roller 8 moves away from the regulating roller 8 and descends, the coil springs 6, 6
The rotation biasing force widens the distance between the edges of the front and rear scrapers 5, so that the edges 5a can come into pressure contact with the cloth 15 of the plate 9.

Now, the plate 9 is fastened to the front stand side with a movable plate (not shown), the stock solution is forced in, and the stock solution is separated into a cake and a liquid for filtration.

When one overstep is completed, the movable plate is moved back to open the plates 9, . This board 9,
. . , 9, the movable table 2 is opened and moved along the guide beams 1, 1 above the space between the plates where the cake removal work is to be performed. Then, the air cylinder 4 is driven to lower the lifting table 3, and as the scraper 5 moves away from the regulating roller 8, the edge 5a of the scraper 5 is moved away from the cloth 15 of the plate 9 by the rotation urging force of the coil springs 6, 6. approach towards
Pressure contact. With the edge 5a of the scraper 5 in pressure contact with the cloth 15, the lifting table 3 is further lowered by driving the air cylinder 4, and the biasing force of the coil springs 6, 6 is applied between the curvature of the cloth 15 due to the unevenness of the plate 9. The edge 5a of the scraper 5 is made to follow. Therefore, the edge 5a of the scraper 5 is always
However, the cloth 15 and the cake 18 attached to the cloth 15
The cake 18 can be reliably removed from the cloth 15 by entering between the cloth 15 and the cake 18. That is, since the scraper 5 is elastically pressed against the cloth 15 by the urging force of the spring, the edge 5a of the scraper 5 easily follows the cloth 15 curved by the uneven surface of the plate 9, and the cloth 15 and the plate 9 are In addition to not damaging the
The cake 18 attached to the recess of the cloth 15 that has entered the recess of the plate 9 can also be reliably removed. Furthermore, in the conventional case where the scraper is fixed below the plate, cake may be deposited on the upper surface of the scraper, but in this embodiment, the scraper 5 is moved downward and the cake is deposited on the upper surface of the cloth 15. Since the cake 18 is removed from the scraper, the cake 18 is not deposited on the scraper.
Cleaning work such as a scraper can be made unnecessary. Furthermore, since the scraper 5 is provided before and after the lifting table 3, the cakes 18, 18 of the two cloths 15, 15 located between the open frames can be removed at the same time.

Further, since the scrapers 5, 5 can be stored together with the lifting table 3 between the stays 12, . While the upward movement can be made smoothly, the open frames 9, 9
Also during the interval, due to the rolling of the regulating rollers 8, 8,
The scrapers 5, 5 can be moved in and out reliably and smoothly.

Note that the present invention is not limited to this embodiment, and can be implemented in various other ways. For example, as shown in FIG. 4, instead of installing coil springs 6, 6 on both ends of the scraper support roller 7, coil springs 19, 19 are installed between the bracket 16 to which the weight 17 is attached and the stay 13 of the lifting platform 3.
may be provided, and the spring 19 applies a rotation biasing force to the scraper support roller 7 in the direction of the hour hand in FIG.

Also, as shown in Figure 5, without using a spring,
The load of a large number of weights 20 may apply a rotation biasing force to the scraper support roller 7 in the direction of the hour hand in FIG.

Effects of the Invention As is clear from the above explanation, according to the present invention, the movable platform is moved above the open space between the boards along the guide beam, and the elevating platform is driven by the actuator provided on the movable platform. The scraper is lowered to release the scraper from the restriction by the restriction member, and the cake removing edge of the scraper is brought into pressure contact with the cloth, so that as the elevator platform is lowered by the drive of the actuator, the scraper can easily follow the cloth. Therefore, it is possible to reliably remove cake stuck to the recesses of the cloth that has entered the recesses of the plate, and also to reliably prevent damage to the cloth. Further, since the scraper is brought into pressure contact with the cloth by the pressing force means, the structure can be simplified. Furthermore, since the cake is removed from the upper side of the cloth, less cake adheres to the scraper than when removing from the lower side of the cloth, and cleaning of the scraper, etc. is not necessary. Moreover, by providing the regulating member, the operation of moving the scraper in and out of the open space between the boards can be performed reliably and smoothly.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a cake removing device according to an embodiment of the present invention, and the right half of line A-A in FIG.
The left half is an explanatory view showing a partially cutaway front view of the cake removing device shown in the figure, FIG. 3 is a side view of the device, and FIGS. FIG. 3 is a side view of a main part showing an example. 1... Guide beam, 2... Moving table, 3... Lifting table, 4... Air cylinder, 5... Scraper, 5
a... Edge, 6, 19... Coil spring, 7...
Scraper support roller, 8... Regulation roller, 9...
...Plate, 15...Cloth, 17,20...Weight,
18...Cake.

Claims (1)

[Scope of utility model registration request] A guide beam installed between the front and rear stands above the plurality of plates, a moving table that is movable in the front and back directions of the filter press along the guide beam, and a movable table that is movably supported in the vertical direction by an actuator on the moving table. a scraper that is rotatably supported by the elevator table at a position parallel to the plate surface and has an edge for removing cake; and a scraper provided on the elevator platform, A pressing means for pressing and urging the cake removing edge of the scraper toward the cloth; and a pressing means that passes through a central opening in the bottom of the movable table and is connected to the center of the upper surface of the lifting table, and is connected to the center of the upper surface of the lifting table below the bottom surface. A pair of regulating rollers are supported at the front and rear of the filter press via projecting stays.The actuator is driven to move the lifting platform up and down with respect to the movable platform, moving in and out between the pair of regulating rollers. 1. A cake removing device for a filter press, characterized in that it can be moved up and down freely in any direction.