JPS5931291Y2 - Filter cloth cleaning device for filter press - Google Patents

Description

[Detailed description of the invention] The present invention relates to a cleaning device for efficiently cleaning the filter cloths of a filter press, in which when the opposing filter plates are opened, a pair of filter cloths between them are narrow at the top and wide open at the bottom. .

When cleaning the filter cloth of a filter press, in which the two filter cloths interposed between the plates are narrow at the top and wide open at the bottom when the opposing filter plates are opened, conventionally, a large number of fluid injection ports are used. Cleaning has been carried out by rotating or moving the pipe between the filter cloths, while jetting fluid, or moving the pipe up and down or in the length direction of the pipe.

However, these movements are in a vertical plane parallel to the opposing filter plates, so the distance between the injection port and the filter cloth surface is close at the top of the filter cloth, so the fluid force is strong and the cleaning effect is good. However, in the lower part, the distance between the nozzle and the filter cloth surface is large and the force of the fluid is weak, reducing the cleaning effect, which has the disadvantage that the filter cloth cannot be cleaned uniformly.

In view of the above circumstances, the present invention provides a device that uniformly and efficiently cleans a filter cloth using fluid jet ports that move along the filter cloth surface, which is narrow at the top and wide open at the bottom. When the filter press is set in a predetermined position against a filter cloth that is narrow at the top and wide open at the bottom, the fluid jet ports of each of the plurality of pipes attached to the pantograph link mechanism expand and contract the pantograph link mechanism. The filter cloth is moved along the filter cloth.

The present invention will be described in detail below with reference to the drawings.

FIGS. 1 and 2 show an embodiment of the filter cloth cleaning device according to the present invention, and reference numeral 1 in the figures indicates a pedestal.

Wheels 1b are attached to the lower surface of this pedestal 1, making it movable.

Further, on the upper surface of the pedestal 1, brackets Ha, Ia,
1a.

1a is provided.

Bracket Ia located on the same side of these brackets
, Ia; 1a, la, pantograph-like link mechanisms 2, 2, which are vertically extendable and retractable, are mounted facing each other.

This pantograph-like link mechanism 2 consists of a first arm 2a) 2a, one end of which is rotatably attached to brackets Ha and la located above the same side, respectively;
Second arms 2c, 2c have one end rotatably attached to the other end of the arms 2a, 2a, and are rotatably attached to each other at an intermediate portion by a lower intermediate shaft 2b; One end is rotatably attached to the other end of the arms 2c, 2c, and the upper intermediate shaft 2d is rotatably attached to each other at the intermediate portion, and the axis of the shaft 2d is The upper arms 2e and 2f are bent in a dogleg shape in a direction that approaches each other in a plane perpendicular to the upper arms 2e and 2f.

The pantograph-like link mechanism 2 provided oppositely,
A drive rod 3 having a coaxial line therewith is rotatably attached between the lower intermediate shafts 2b, 2b.

The upper end of a driving device 4 that expands and contracts by pneumatic, hydraulic, or mechanical mechanisms is attached to the center of this drive rod, and the lower end is fixed to the surface of the mount.

Furthermore, water sprinkling pipes 5 and 6 are attached to the tips of the upper arms 2e, 2e, 2f, and 2f, respectively.

A plurality of injection ports 5a . . . , 6a .

Next, a method of using the filter cloth cleaning device constructed as above will be explained.

As shown in FIG. 3, the opposing filter plates 1 of the filter press
1.11 When the plate is opened, a pair of filter cloths 12 interposed between them,
13 are connected at their upper sides and held by a hanging member 14, and the lower portions of the filter cloths 12, 13 are fastened by fasteners 15, 15 across the lower width direction of the filter plates 11, 11, so that the upper 16 is the weight of the liquid passage part of the filter cloth.

The filter cloth is washed according to the following procedure.

(1) The link mechanism 2 is shortened and the cleaning device is moved to a predetermined position below the filter cloth 12, 13 which is narrow at the top and widely open at the bottom.

At this time, the cleaning device is easily moved by the lower car 1b.

(2) Extend the drive device 4 to push up the drive rod 3 and extend the link mechanism 2.

At this time, the fluid jetting pipes 5° and 6 at the ends of the upper arms 2e, 2e; 2f and 2f are placed close to each other near the top of the filter cloths 12 and 13. reaching each fluid injection port 5a..., 6a
... face the direction of the filter cloths 12 and 13, respectively.

(3) Force the fluid to the jet pipes 5 and 6, and
a... 6a... while causing fluid to be ejected,
By shortening the drive device 4, the pantograph-like link mechanism 2 is gradually shortened.

At this time, the fluid jetting pipes 5 and 6 descend while gradually increasing the interval, and accordingly, the fluid jetting ports 5a..., $a
... descends almost along the surface of the filter cloths 12, 13, and passes through a trajectory 17.17 shown by a dashed line in the figure.

For this reason, the fluid injection ports 5a..., 5a... and the filter cloth 12
, 13 are cleaned with almost constant intervals, so uniform cleaning is possible.

Further, FIG. 4 shows the usage state of a cleaning device according to another embodiment of the present invention.

In this way, the size of the filter cloth, the open state of the filter cloth, etc. will vary depending on the type of filter press, but the length of each arm of the pantograph link mechanism, the number of stages, the bending angle of the upper arm, etc. should be selected appropriately. This makes it possible to obtain a cleaning device that is optimal for each type of filter press.

As described above, the cleaning device according to the present invention can clean the filter cloth, which is narrow at the top and wide open at the bottom, with the fluid jetted from the fluid jet ports located at the same distance, so that the entire surface of the filter cloth is cleaned uniformly. It has the effect of

[Brief explanation of drawings]

Figures 1 and 2 show an embodiment of the filter cloth cleaning device according to the present invention. Figure 1 is a front view, Figure 2 is a side view showing the connected state of each arm, and Figure 3 is a main body. FIG. 4 shows a state in which the apparatus is used for cleaning a filter cloth, and FIG. 4 shows a state in which another embodiment of the present invention is used. 1... Frame, 1a... Bracket, 2
...Pantograph-like link mechanism, 2a...
・・First arm, 2b・・Lower intermediate shaft, 2c・
...Second arm, 2d00010. upper intermediate shaft,
2e, 2f... Upper arm, 3...
・Drive rod, 4... Drive device, 5... Water pipe, 5a... Fluid injection port, 6...
・Water pipe, 6a...Fluid injection port.

Claims (1)

[Scope of utility model registration request] Two filter cloths interposed between the opposing filter plates are supported at their upper edges, and the lower part of the filter cloth is fixed to the lower part of the opposing filter plates, so that when the opposing filter plates are opened, the two filter cloths are supported. In a filter cloth cleaning device for a filter press where the filter cloth is narrow at the top and wide at the bottom, there is a pantograph-like link mechanism that is mounted on a movable stand and is driven to expand and contract in the vertical direction, and this pantograph-like link mechanism. and a plurality of pipes each having a plurality of fluid injection ports, and when the pedestal is set at a predetermined position below the opened filter press, the pantograph-like link mechanism can be expanded and retracted. A filter cloth cleaning device for a filter press, characterized in that the fluid jet port moves up and down parallel to the filter cloth surface.