JPS6346085Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sheet-like filter medium pull-out device attached to a sheet-like filter medium feeding type horizontal filter machine.

In general, a filtration system using this type of horizontal filtration machine is as shown in Fig. 1, in which a horizontal filtration machine A consists of an upper lid a and a lower body b supported by a jack j so as to be openable and closable with respect to the upper lid a. While a sheet-like filter medium F (hereinafter simply referred to as a filter medium) made of filter paper or filter cloth is intermittently fed in the direction of the arrow, the stock slurry is fed into the filter machine A from the pipe d and filtered, and the slurry is filtered on the filter medium F. After deliquifying the cake by supplying pressurized air to the cake, a filter medium pull-out device B disposed on the side of the filter A is driven to scrape off the cake C on the filter medium F with a blade. There is.

As shown in a schematic front view in FIG. 2, in the conventional filter medium drawing device B, the rotating shaft 3 of the drawing roller 2 is supported by the support plate 1 at the end of the support plate 1.
Further, the pressing roller 4 for the filter medium F is supported via a rotating shaft 7 on a connecting plate 6 which is rotatably attached to the support plate 1 adjacent to the pull-out roller 2 via a pin 5. On the other hand, a cake (not shown) on the filter medium F is attached to the connecting piece 8 fixed to the side of the pull-out roller 2 of the support plate 1.
A blade 9 for scraping is attached so that the edge of the blade 9 is close to the shearing material F being fed on the pull-out roller 2, and a connecting plate 11 with a handle 10 fixed to one end is attached to the connecting piece 8 with the blade. It is rotatably attached to the lower support plate 1 via a pin 12, and the connecting plate 6 of the presser roller 4 and the connecting plate 1 with a handle are attached to the lower support plate 1 via a pin 12.
1 are connected by a coil spring 15 through pins 13 and 14 attached to the respective connecting plates, and when the attachment position of the pin 14 is held down by the roller 4 and the filter medium F is held between the pull-out roller 2, the pin 14 is adjusted so as to come into contact with the end surface of the support plate 1.

However, in such a conventional filter medium drawing device, the connecting plate 8 with a blade is connected to the connecting plate 11 with a handle.
Since the blade 9 is fixedly attached to the support plate 1 separately from the filter, and the blade 9 is also fixed to the connecting piece 8 by tightening bolts, there is no possibility of the filter medium F becoming dirty due to assembly to the pull-out device B or cake. Cleaning and other maintenance of equipment parts that are easily damaged is complicated, and adjustment of the gap between the blade 9 and the pull-out roller is also troublesome. Furthermore, since the presser roller 4 is cylindrical, the cake that adheres to the filter medium surface without being scraped off by the blade 9 may accumulate on the filter medium clamping surface between the presser roller 4 and the pull-out roller 2, causing trouble in drawing out the filter medium. There were drawbacks such as falling around and staining equipment parts.

The present invention was developed by focusing on the problems of conventional filter media drawing devices, and aims to solve all of the above problems, simplify the device and operation, and also adjust the meandering of the filter media that is drawn out. It is an object of the present invention to provide a filter medium drawing device that can perform the following steps.

The present invention will be described below with reference to the accompanying drawings showing embodiments.

FIG. 3 is a schematic front view of the filter medium drawing device of the present invention, in which a rotating shaft 3 of a drawing roller 2 is supported at the end of a support plate 1, and a presser roller 4 is supported via a pin 5. Connecting plate 6 rotatably attached to plate 1
The connecting plate 11 with the handle 10 fixed to one end is supported by the pin 1 via the rotating shaft 7.
The connecting plate 6 of the presser roller 4 and the connecting plate 11 with a handle are connected to the pin 13 and the pin 1 attached to the respective connecting plates.
4 and a coil spring 15, and the mounting position of the pin 14 is adjusted so that the pin 14 comes into contact with the end surface of the support plate 1 when the filter medium F is held between the pull-out roller 2 by the presser roller 4. Although this is almost the same as the conventional drawing device B,
In the drawer device D of the present invention, the conventional connecting piece 8 with a blade is removed, and the blade 9 is slidably fixed to the connecting plate 11 with a handle via a fixture 16 by screws or the like.

Therefore, the mounting position of the blade 9 is the presser roller 4.
When the pin 14 comes into contact with the end surface of the support plate 1 with the filter medium F being held between the pull-out rollers 2, the blade 9
The edge of the filter is adjusted so as to maintain an appropriate distance from the pull-out roller 2 for scraping cake on the filter medium. In the present invention, a filter medium tension bar 17 that is movable within the slit 18 is further attached to the support 1 on the side of the presser roller 4 as necessary.
The structure of the presser roller 4 is formed into a multi-disc structure in which a plurality of discs 19 are provided around the outer circumference of the rotary shaft 7, as shown in a side view in FIG. 5a. In this case, disk 1
If a cushion material 20 is embedded in the outer circumferential surface of the filter material 9 as shown in the enlarged sectional view in FIG. 5b, slipping of the filter material can be prevented.

Next, the operation of the filter medium drawing device D of the present invention will be described. First, when the handle 10 is pulled and tilted downward, the connecting plate 11 rotates about the pin 12, and the coil spring 15 is loosened, and the connecting plate 6 is pinned. At the same time, the presser roller 4 is separated from the pull-out roller 2, and the arrangement of the respective device parts becomes the state shown in FIG. Therefore, after passing the filter medium F between the pull-out roller 2 and the presser roller 4 and between the filter medium tension bar 17 as shown in FIG. Therefore, the filter medium F is pressed by the presser roller 4.
The blade 9 is pressed against the pull-out roller 2 via the coil spring 15 and set between the two rollers, and at the same time, the blade 9 is also set at a predetermined position in close contact with the surface of the filter medium on the pull-out roller 2. However, if the moisture content of the cake is low or the cake layer is thick, the cake will peel off and fall from the filter medium due to the weight of the pull-out roller 2, so the blade 9 must be brought into close contact with the filter medium surface of the pull-out roller 2 in order to scrape off the cake. In this case, the distance between the edge of the blade 9 and the surface of the filter medium is about 1 mm from the top of the filter medium protection, and is used as a guide plate for falling cake.

Next, by rotating the pull-out roller 2 in the direction of the arrow by a drive source (not shown), the filter medium F moves in the direction of the arrow, and the cake (not shown) formed on the filter medium as described above is attached to the edge of the blade 9. It is scraped off and peeled off from the filter medium. The filter medium from which most of the cake has been removed is held between the pull-out roller 2 and the press roller 4, its meandering is further adjusted by the tension bar 17, and the filter medium is wound up by a winder (not shown). In this case, if a roller with a multi-disk structure shown in FIG. 5 is used as the presser roller 4, the cake accumulated at the clamping portion of the pull-out roller 2 and the presser roller 4 will be held in the groove between the disks 19. Since no cake adheres to the outer periphery of the pressing roller 4, it is possible to prevent the cake from interfering with drawing out the filter medium and from contaminating the device and its surroundings due to the cake falling off. Furthermore, it is possible to prevent meandering of the filter medium due to cake adhesion to the roller surface, poor transfer of the filter medium due to slipping of the filter medium, and malfunctions due to large amounts of cake adhesion, which occur with conventional cylindrical rollers. Further, it is preferable that the filter material take-up roller e (see FIG. 1) winds up the filter material with the cake-attached surface facing inside as shown in FIG.

As explained in detail above, the filter medium pull-out device of the present invention has a simplified mechanism and operation compared to conventional devices, and also facilitates management such as assembly of the filter medium and cleaning of device parts. , it is possible to easily adjust the position of the blade and the meandering of the filter medium, and furthermore, by using a roller with a multi-disk structure as the presser roller, it is possible to prevent equipment failure and environmental pollution due to cake. has advantages.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of a filtration system using a horizontal filtration machine, Fig. 2 is a schematic front view of a conventional filter medium drawing device, Fig. 3 is a schematic front view of a filter medium drawing device of the present invention, and Fig. 4 is a schematic front view of a filter medium drawing device of the present invention. FIG. 5A is a side view of the presser roller, and FIG. 5B is an enlarged cross-sectional view of the outer circumferential surface of a disk provided around the outer circumference of the presser roller. 1... Support plate, 2... Pull-out roller, 4... Press roller, 6, 11... Connection plate, 9... Blade,
10... Handle, 5, 12, 13, 14... Pin, 15... Coil spring, 17... Filter medium tension bar.

Claims (1)

[Claims for Utility Model Registration] (1) A pull-out roller rotatably supported at the end of a support plate and a connection rotatably attached to the support plate adjacent to the pull-out roller via a pin. The presser roller, which is pivotally supported on the plate, can be moved in and out by connecting the connecting plate of the presser roller via a spring to a connecting plate with a handle that is rotatably attached to the end of the support plate via a pin. A drawing device for sheet-like filter media, which is arranged freely and has a blade disposed on the outside of the drawing roller, characterized in that the blade is attached to the connecting plate with a handle so as to be slidable and adjustable. A device for drawing out sheet-like filter media. (2) The sheet-like filter medium pull-out device according to claim 1, wherein the presser roller is configured with a plurality of discs arranged around the outer circumference of a rotating shaft. (3) The sheet-like filter medium drawing device according to claim 1 or 2, characterized in that a filter medium tension bar is provided on the outer support plate of the pressing roller.