JPS6236486Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention is a filter press in which a stock solution is separated into a liquid and a cake by over-pressing or over-squeezing. The present invention relates to a cake removal 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 enters from above and comes into contact with 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 removal scraper is made to be able to move to follow the curved cloth according to the unevenness of the plate, so that the cake does not adhere to the surface of the cloth. It is an object of the present invention to provide a cake removing device that can effectively peel off and remove the cake that has been removed, and can reliably prevent damage to the fabric.

Structure of the invention In other words, the present invention includes 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 rear directions of the filter press along the guide beam, and a A lifting platform is movably supported by a first actuator and can enter between the open plates, and a fixed shaft is attached to the lower end of an inverted L-shaped stay projecting from the bottom of the lifting platform. A link member is rotatably attached, a scraper is fixed to the other end of the link member via a support shaft and has a cake removing edge at the tip, and a movable base is attached to both sides of the center of the upper surface of the lift base. A second actuator vertically installed through an opening provided in the bottom surface, and a third actuator having both ends rotatably attached between the lower end of the second actuator and a support shaft between the link member, When removing the cake after opening the plate, by lowering each rod of the second and third actuators, the scraper rotates around the fixed shaft via the support shaft attached to the rod of the third actuator. To provide a novel cake removing device for a filter press, characterized in that the cake removing edges of the front and rear scrapers enter between the plates and come into contact with the cloth.

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 a pair of cloths interposed between adjacent plates, and washing the cloths, tighten the plate to the front stand side again using the movable plate for the next step. This is a well-known method that performs the following steps.

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, a first air cylinder 4 as a first actuator, and a second air cylinder 4 as a second actuator. It is generally composed of second and third air cylinders 5 and 6 and a scraper 7.

The guide beams 1,1 have a number of plates 8,...,
It is a pair of U-shaped members installed between the front and rear stands above the guide beams 8, and supports the movable table 2 between both guide beams.

The moving table 2 is a box-shaped member, and guide rollers 9, 9 protruding from both sides thereof are rotatably fitted and supported by the guide beams 1, 1, and are freely movable in the front and rear directions of the filter press. I'm trying to do what I can.

At the center of the bottom surface of the movable table 2, a first air cylinder 4 is provided vertically upward, passing through the center of the top surface and extending outward. The rod tip 4a of the first air cylinder 4 passes through the bottom center opening 2a of the moving table 2 and is connected to the center of the top surface of the lifting table 3,
By driving the first air cylinder 4, the elevating table 3 can freely move up and down in the vertical direction with respect to the movable table 2.

As shown in FIG. 2, the lifting platform 3 includes three inverted L-shaped stays 1 at the front and rear of a rectangular board 3a.
0, 10, and 10 are provided in a protruding manner, and a fixed shaft 11 is supported at the lower end of each of the front and rear stays 10, respectively. A pair of link members 1 are provided between each stay of the fixed shaft 11.
2 and 12 are rotatably attached, while a support shaft 1 is attached to each other end of the pair of link members 12 and 12.
3 is fixed.

Further, second and third air cylinders 5 and 6 are respectively installed on both sides of the center of the upper surface of the lifting table 3 connected to the rod 4a of the first air cylinder 4 of the moving table 2.
It stands upright in the vertical direction so as to be able to freely enter and exit openings 2b and 2c provided on the bottom of the movable table 2. At the lower ends of the rods 5a and 6a of each air cylinder 5 and 6, there is a third
As shown in the figure, two adjustment air cylinders 1
The lower end of the rod 14a of the adjusting air cylinder 14 is rotatably attached to the support shaft 13 between the pair of link members 12, 12.

On the other hand, the scraper 7 is composed of divided bodies 7a, 7b, and 7c divided in the width direction of the plate 8, and the base end portions are fixed to the support shaft 13, respectively, so that the scraper 7, the support shaft 13, and the link member 12 are fixed to the support shaft 13, respectively. It is designed to be able to rotate integrally around a fixed shaft 11. Further, each scraper 7 is provided with a cake removing edge 16 at the tip, and the edge 16 enters between the cloth 17 and the cake 18 attached to the cloth.
The cake 18 can be removed from the cloth 17.

The cake removing device according to the above configuration, as shown by the solid line in FIG. 3, when not removing cake,
All the rods are housed in the first, second, and third air cylinders 4, 5, and 6, respectively, and the scrapers 7 and 7 are positioned below the lifting platform 3. On the other hand, when removing the cake, as shown by the dotted line in FIG. 14 is opened, and the rod 14 of each cylinder 14 is opened.
The scraper 7 is
rotates around the fixed shaft 11 so that the cake removing edges 16 of the front and rear scrapers 7 come into contact with the cloth 17.

Now, the plate 8 is fastened to the front stand side with a movable plate, the stock solution is forced in, and the stock solution is separated into cake and liquid and filtered.

When one overstep is completed, the movable plate (not shown) is moved back, the plate is opened, and a portion of the cake falls downward under its own weight. At the same time as the plates are opened, the movable table 2 is moved along the guide beams 1, 1 to a position above the gap between the plates where the plates are to be opened and cake removed. Then, the second and third air cylinders 5 and 6 are driven synchronously to lower the rods 5a and 6a of each air cylinder, and each pair of adjusting air cylinders 14 and 14 moves the scrapers 7 and 7 around the fixed shaft 11. The tip edge 16 of each scraper 7 is brought into contact with the cloth 17 of the plate 8. In this state, the lifting platform 3 is lowered by driving the first air cylinder 4, and the second and third air cylinders 5, 6
The edges 16 of each scraper 7 are caused to follow each other by synchronous driving. Therefore, the scraper 7 always enters between the cloth 17 and the cake 18 attached to the cloth 17, and the cake 18 can be reliably removed from the cloth 17. That is, by adjusting the synchronized driving of the second and third air cylinders 5 and 6, the inclination angle and pressure contact force of the scraper 7 against the cloth 17 can be adjusted, and the cloth 17 that has entered the recess of the plate 8 can be adjusted. It is also possible to reliably remove the cake 18 that has adhered to the recess. Furthermore, since the scraper 7 is divided into three parts, it has better contact with the cloth surface than if it were formed integrally.

In this embodiment, the scraper 7 and the second and third air cylinders 5 and 6 are connected via the adjustment air cylinders 14 and 14, but the scraper 7 and each air cylinder 5 and 6 are connected directly. may be concatenated.

Furthermore, if the scrapers 7a, 7b, and 7c are made to come into contact with the cloth 17 by separate drive devices, the scrapers 7a, 7b, and 7c can be brought into contact with the cloth 17.
The followability of a, 7b, and 7c is improved, and cake 18
The removal work can be carried out more reliably.

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 lifting platform is moved close to the board by driving the first actuator. The cake removing edge of the scraper is brought into contact with the cloth by driving a second actuator provided on the lifting platform, and the driving of the second actuator is adjusted while lowering the lifting platform by driving the first actuator. The contact angle and pressing force of the edge of the scraper against the cloth can be adjusted, making it possible to reliably remove cake stuck to the recesses of the cloth that has entered the recesses of the plate, and to ensure that the cloth is not damaged. can be prevented.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional front view of a cake removing device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line -- in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line -- in FIG. 1... Guide beam, 2... Moving table, 3... Lifting table, 4... First air cylinder, 5, 6... Second,
Third air cylinder, 7...Scraper, 8...
Board, 16...Edge, 17...Cloth, 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 can freely move the filter press in the front and rear directions along the guide beam, and a first actuator that moves the filter press in the vertical direction on the moving table. A lifting platform that is freely supported and can enter between the open frames, and a link member that is rotatably attached via a fixed shaft to the lower end of an inverted L-shaped stay that projects from the bottom of the lifting platform. and a scraper fixed to the other end of the upper link member via a support shaft and having a cake removing edge at the tip, and an opening provided in the bottom of the movable platform on both sides of the center of the upper surface of the elevating platform in the vertical direction. A second actuator is installed upright, and a third actuator is rotatably attached at both ends between the lower end of the second actuator and the support shaft between the link member, and when the cake is removed when the plate is opened. ,
By lowering each rod of the second and third actuators, the scraper rotates around a fixed shaft via a support shaft attached to the rod of the third actuator, and the cake removal edges of the front and rear scrapers rotate. A cake removing device for a filter press, characterized in that the cake remover enters between the plates and comes into contact with the cloth.