JPS6231127Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a filter cloth hanging structure in a filter press.

Conventionally, in the filter cloth hanging structure, as shown in FIGS. 1 and 2, the upper ends of links 2, 2 rotatably supported on the side surfaces of adjacent filter plates 1, 1 are connected by a connecting shaft 3. At the same time, the top of a support piece 5 made of a link or the like is suspended from the lower end of the helical spring 4 attached to the connecting shaft 3,
The filter cloth hanging rod 6 attached to the upper end of each filter cloth 8 is inserted into the insertion hole 5a at both ends of the support piece 5, and the ends of the filter cloth hanging rod 6 and the link 2 are connected with the helical spring 7, 7
It is connected by .

By the way, although not shown, in the existing filter press in which the filter cloth is fixed to the filter plate,
In order to improve cake removal from the filter cloth, the conventional filter cloth suspension structure may be modified to slope the upper halves of each of the separated adjacent filter cloths.

However, the conventional filter cloth hanging structure requires a lot of effort to process the filter plate in order to pivotally support the link on the filter plate, and has the disadvantage that the filter press is stopped for a long period of time.

In order to solve the above-mentioned drawbacks, the present invention aims to provide a filter cloth hanging structure that allows the upper end of the filter cloth to be suspended in a tensioned state without performing any processing on the filter plate.

The present invention will be explained below based on the embodiments shown in FIGS. 3 to 5. As shown in FIG. 3, the lower halves of the filter cloths 9, 9 adjacent to each other in the front and back are fixed to the corresponding filter plate 10 with a fixing string (not shown) or the like, and are not fixed to the filter plate 10. A filter cloth hanging rod 11 is attached to the upper end of the upper half thereof. The lower ends of two links 12, 12 whose upper ends are connected by pins are attached to the corresponding filter cloth hanging rods 11 on the left and right sides of the adjacent filter cloth hanging rods 11, 11.
By connecting pins 13 near the ends of the two, they are connected so that they can be separated and approached freely.

Above the left and right ends of the filter cloth hanging rods 11, 11, . . ., one sub guide rail 14 is extended along the front and back direction. The sub-guide rail 14
Hangers 15, 15, . . . are guided by rollers so as to be movable back and forth. The two tension springs 16, 16 whose upper ends are connected to each hanging device 15 have their lower ends connected to the ends of the corresponding two filter cloth hanging rods 11, 11, respectively, and The upper half is suspended under tension. Although the hanging tools 15 are not shown in the drawings in order to smoothly move back and forth, adjacent hanging tools 15, 15 may be connected to each other under appropriate tension using a tension spring or the like, if necessary. .

Above the sub-guide rails 14, as shown in FIG. 5, one main guide rail 17 is extended along the front-rear direction. The main guide rail 17
A cart 18 is disposed so as to move back and forth above the filter plates 10, 10, . . . . The trolley 18
is set at a predetermined pitch P by a driving means 22 driven in synchronization with a filter plate feeding means (not shown) for intermittently moving the filter plates 10 one by one to the cake peeling state.
(The dimension is the thickness of the filter plate 9 plus the thickness of the filter cloth 10)
It is configured to be driven intermittently and stopped above the filter cloths 9, 9 (see FIG. 4) separated from each other in a state where the cake is peeled off. The trolley 18 is provided with pressing tools 20, each consisting of a hydraulic cylinder or the like, for pressing downward the upper end connecting portion 19 of the two links 12, 12, for each pair of left and right filter cloths. 9, the upper half of 9 is changed from a V-shaped inclined state (see Figure 3) to a nearly standing state (see Figure 4)
It is configured to be suspended from. In addition, the trolley 1
8 is provided with a filter cloth cleaning means 21 as required. The filter cloth cleaning device 21 is composed of an elevating means 23 which is disposed below the cart 18 and is composed of a link mechanism that can freely move in parallel, and a group of cleaning water spray nozzles 24 attached to the lower end of the elevating means 23. , 4th
As shown in the figure, the cleaning nozzle group 24 is configured to move up and down in the space S formed by the filter cloths 9, whose upper halves are in a substantially upright state due to the pressure of the pressing tools 20, 20. .

Next, the effects of the present invention will be explained. As shown in FIG. 3, when the filter plates 10 are intermittently transferred one by one from the filter plate group 10' where the filtration process has been completed to the filter plate standby position side A, the corresponding hanging devices 15, 15 are automatically moved, By tensioning the tension springs 16, 16, the filter cloth 9,
9. Suspend the upper half in a V-shape. Next, the filter cloth 9,
When it is necessary to forcibly peel off the cake (not shown) attached to the filter cloth 9, both of the pressing tools 20 are operated simultaneously or alternately, and the upper end connecting parts 19, 19 of the links 12, 12 are hit to remove the cake (not shown) from the filter cloth 9. , 9 are vibrated vertically or horizontally to forcibly peel off the cake. Furthermore, when filter cloth cleaning is required, both of the pressing tools 20, 20 are operated to separate the filter cloth hanging rods 11, 11, as shown in FIG.
After the upper half of 9 is in an upright state, the filter cloth cleaning means 2
1 is activated to wash the filter surfaces of the filter cloths 9, 9 with high-pressure washing water. When cleaning is completed, the filter cloth cleaning means 21 is moved back to the upper standby position (the position indicated by the two-dot chain line in FIG. 5), and the pressing tools 20, 20 are
is raised to the standby position, and then the next filter plate 10 from the filter plate group 10' is transferred to the standby position side A, and then forced cake peeling and filter cloth cleaning are performed as necessary in the same manner as described above.

As described above in detail, the filter cloth suspension structure according to the present invention has the following practical effects.

When upgrading an existing filter press with fixed filter cloth to a filter cloth hanging structure, it is extremely easy to do so on-site without any processing on the filter plate, so the suspension of the filter press can be kept for a short period of time. becomes possible.

By simply operating the pressing tool, the upper half of the filter cloth separated in the cake-peeling state can be quickly and reliably changed from the tilted state to the upright state in which the cleaning nozzle group can be inserted, increasing the operating efficiency of the filter press. It becomes possible to improve the performance.

Since it is possible to apply vertical vibration or horizontal vibration to the filter cloth by simultaneously or alternately operating the two pressing tools disposed on the left and right sides, it is possible to improve cake removal.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a conventional filter cloth hanging structure, FIG. 2 is an enlarged perspective view of the same essential parts, and FIGS. 3 to 5 show examples of the filter cloth hanging structure according to the present invention. FIG. 3 is a perspective view showing the main parts, FIG. 4 is a partially cutaway side view, and FIG. 5 is a sectional view taken along the line -1. 9... Filter cloth, 10... Filter plate, 11... Filter cloth hanging rod, 12... Link, 14... Sub-guide rail, 1
5... Hanging tool, 16... Tension spring, 18... Dolly, 20... Pressing tool.

Claims (1)

[Scope of utility model registration request] In a filter cloth hanging structure that suspends a filter cloth hanging rod attached to the upper end of each filter cloth of a filter press,
The left and right ends of the two filter cloth hanging rods that are adjacent to each other in the front and back are connected to each other by connecting the lower ends of the two links, whose upper ends are connected with pins, so that they can be separated and approached freely. A hanging tool is guided so as to be movable back and forth on guide rails that extend along the front and back direction toward both the left and right ends of the hanging rod, and the lower ends of two tension springs whose upper ends are connected to the hanging tools are connected to corresponding ends of the two filter cloth hanging rods, and the trolley, which is disposed above the filter cloth hanging rods so as to be movable back and forth, is connected to the separated filter cloth hanging rods. A filter cloth hanging structure characterized in that pressing tools capable of pressing downwardly the vicinity of the upper end connecting portions of two links are provided for one set of left and right.