JPH0544202U - Filter press expansion and contraction adjusting device - Google Patents

Abstract

(57) [Summary] [Purpose] In a filter press of the type in which a single filter cloth runs vertically between filter plates, we propose a device that can easily adjust the tension level according to the expansion and contraction of the filter cloth. [Structure] An upper edge portion of a pair of filter cloths provided between filter plates is connected to one end of a drive band of the filter cloth, and a lower end edge of the filter cloth is connected to the other end of the drive band. A filter cloth hanging device for a filter press in which a filter cloth and its drive belt form a loop around the filter board so that the filter cloth can move up and down. Are connected to each other via a suspending metal which is slidable up and down along the side portion of the drive belt, and the other end of the drive band is slidably fixed to the suspending metal. If you want to loosen the tension of the filter cloth, you can unfasten the drive band and lengthen the loop, and if you want to tension the filter cloth, shorten the loop. This operation is simple and has a wide range of adjustment.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a filter cloth expansion / contraction device in a filter cloth traveling type filter press.

[0002]

[Prior Art]

 Conventionally, as a filter cloth traveling device of this type of filter press, there is one as shown in FIGS. 4 and 6 of Japanese Patent Publication No. 55-38167. In this product, as shown in the figure, the filter cloth provided between the filter plates and the drive chain of this filter cloth form a loop around the filter plate. Support bars provided at the upper and lower edges move up and down like a seesaw and intersect between filter plates. To adjust the vertical effective length of the filter cloth that covers the filtration surface of the filter plate, adjustment bolts are provided on the lower support bar.

[0003]

[Problems to be solved by the device]

 However, with this conventional adjusting device, it takes time to make a large adjustment to rotate the screw, and particularly with a large filter cloth, when it is clogged during use, it shrinks by 100 mm or more. However, since the filter cloth and the drive chain form a loop, there is a problem that the rigid adjustment bolt cannot provide a sufficient adjustment allowance.

[0004]

[Means for Solving the Problems]

 Therefore, in the present invention, a flexible member is used for the adjusting portion so that the flexible portion can be easily fixed and disassembled for adjustment. A pair of filter cloths is provided between the filter plates that are movably arranged in parallel to each other so as to cover the filtration beds of the left and right filter plates. In a filter press that is allowed to run, guide rails are provided on the left and right sides of the filter plate in the vertical direction, and a filter cloth hanger is provided slidably on the guide rails. Attach the locks to the bottom corners of the cloth so that they can be engaged and disengaged, while hooking both ends of the support bar on the top of the filter cloth to the drive wheels on the top of the filter plate. Connect it to one end of the drive band that has been turned, and connect the other end of this drive band to the hanging bracket. Is obtained by sliding fixed rotatably connected.

[0005]

[Action]

 Since the filter cloth adjusting and expanding / contracting device according to the present invention is configured as described above, when the filter cloth contracts due to clogging or the like, the sliding portion of the drive band fixed to the hanging fitting is fixed (locked). ), The loop composed of the filter cloth and the drive band can be lengthened. To fix the sliding part, no special fixing device is used, and the sliding is simply locked. Therefore, no special tool is required and the operation is simple. In particular, the means for adjusting the length of this loop is to slide a string-shaped drive band so that it can be adjusted steplessly.Because the drive band is flexible, conventional screws etc. can be used. Compared with the one used, it has a longer adjustment allowance and is suitable for a filter press using a large filter cloth. The present invention will be specifically described below with reference to the drawings.

[0006]

【Example】

 FIG. 1 is a partial side view showing an outline of a suspended state of a filter cloth according to the present invention. In the drawing, reference numeral 1 is a filter cloth, 2 is an upper support bar, 3 is a filter plate, and 4 is a lower part of the filter plate. The return roll 5 is a drive wheel provided above the filter plate 3, and 6 is a chain wound around the drive wheel 5. The upper end of the chain 6 is connected to the upper support bar 2 described above, and the lower end of the chain 6 is connected to a hanging metal fitting 7 (shown in FIG. 2) slidably provided on the side of the filter plate 3. A loop is formed around the filter plate 3 by 1 and the chain 6, and the filter cloth 1 travels up and down between the filter plates 3 and 3 by rotating the drive wheel 5 forward and backward.

Next, the configuration of the above-mentioned hanging metal fitting 7 will be described in detail. FIG. 2 shows the lower end portion of the filter cloth 1 connected to the chain 6 via the hanging metal fittings 7. Ears 1a are provided at the left and right corners of the filter cloth 1, and the filter cloth 1 is inserted into the ear 1a. The lower part of the filter cloth 1 is supported so that the connecting pin 8 can be engaged with and disengaged from the hook 7a of the hanging fitting 7, and the upper end is attached to the upper support bar 2, and both ends of the upper support bar 2 are respectively attached. It is connected to the upper end of the chain 6. 3 and 4 show a detailed structure of the hanging metal fitting 7, in which a pair of hooks 7a are provided in the lower part thereof, and the rail 9 (groove) provided in the filter plate portion is provided on the back side thereof. ) Is provided, and the projection 7b is formed into a channel shape to form the insertion passage 7c of the drive chain 6 described above, and a notch 7d is provided on the surface side of the insertion passage 7c. There is.

The structure of the connecting portion between the filter cloth 1 and the chain 6 via the hanging metal fitting 7 configured in this way will be described in more detail. As shown in FIG. The connecting pin 8 inserted into the left and right ears 1a at the lower end of the chain is engaged, while the connecting chain 6a connected to the chain 6 is inserted into the insertion passage 7c of the hanging metal fitting 7. The link pin 6b of 6a can be engaged with and disengaged from the engaging portion 7e provided on the upper portion of the insertion passage 7c so that the filter cloth 1 and the chain 6 can be connected and disconnected freely. In the illustrated example, the connecting chain 6a as shown in FIGS. 5 and 6 is used to connect the chain 6 and the hanging metal fitting 7, but the chain 6 is passed through the insertion passage 7c and the connecting pin of the chain 6 is connected. May be fixed by a locking pin provided on the hanging metal fitting 7.

Since the adjusting device according to the present invention is configured as described above, when the filter cloth 1 contracts and tensions due to clogging or the like, the link pin 6b of the connecting chain 6a is removed from the locking portion 7e. The connecting chain 6a can be slid in the insertion path 7c, and the tension can be released by lengthening the loop between the filter cloth 1 and the chain 6. More specifically, this adjustment operation will be described. By lifting the hanging metal fitting 7, as shown in FIG. 4, the connecting chain 6a is disengaged from the locking portion 7b, and from the cutout 7d, the front side of the hanging metal fitting 7 ( It can be taken out to the left), and the length of the loop can be adjusted by sliding the connection chain 6 which is not loaded in this way up and down. Then, the link pin 6b suitable for the desired length may be selected and engaged with the locking portion 7e. The connecting chain 6a locked to the locking portion 7e hangs by its own weight in the insertion passage 7c, and is fixed to the link pin 6b without slipping under the load of the filter cloth 1. The above operation is simple and requires no special tool, and is adjusted by a flexible member such as the connecting chain 6b. Therefore, there is a feature that the adjustment range can be widened while forming a loop.

[0010]

[Effect of the device]

 As described above, the adjusting device according to the present invention can easily and quickly adjust the tension of the filter cloth, and in particular, it has a wider adjusting range than the conventional adjusting device using screws, and The operation is quick, and it is effective for suspending the filter cloth of a large filter press, which has been a problem to adjust the shrinkage of the filter cloth.

[Brief description of drawings]

FIG. 1 is a schematic side view of a filter cloth expansion / contraction adjusting device according to the present invention.

FIG. 2 is likewise a front view showing a suspended state of the lower portion of the filter cloth.

FIG. 3 is likewise a front view of a pair of filter cloths on the left side of the pair of hanging fittings.

FIG. 4 is a cross-sectional view taken along the line AA of FIG.

FIG. 5 is a front view of a connecting chain connected to a filter cloth driving chain.

FIG. 6 is a side view of the chain of FIG.

[Explanation of symbols]

 1 Filter cloth 2 Upper support bar 3 Filter plate 5 Drive wheel 6 Chain 7 Hanging metal fitting 8 Connecting pin 9 Rail

Claims (1)

[Scope of utility model registration request] 1. A pair of filter cloths are provided between filter plates movably arranged in parallel on a horizontal rod so as to cover the filter beds of the left and right filter plates, and the upper end edge and the lower end edge of these filter cloths are provided. In a filter press in which each of them crosses in a seesaw shape and travels vertically, guide rails 9 are provided in the vertical direction on both left and right sides of the filter plate 3, and the filter cloth 1 is slidably suspended on the guide rails 9. The metal fitting 7 is provided, and the suspending metal 7 is removably connected with the locking tools 8 provided at the corners of the lower end of the filter cloth 1, respectively, while the support bar is provided on the upper end of the filter cloth 1. Both ends of 2 are connected to one end of a drive band 6 wound around drive wheels 5 provided on the upper part of the filter plate 3, respectively.
A filter press expansion / contraction adjusting device in which the other end of the filter cloth is slidably and fixedly connected to the hanging metal fitting 7.