JPH0448910A - Apparatus for preventing lateral falling of cake of belt press - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a device for preventing cake from falling sideways in a belt press.

BACKGROUND OF THE INVENTION Conventionally, belt presses have been used for solid-liquid separation of various sludges and slurries. A belt press consists of a pair of upper and lower bands (reticular filter cloth) and rolls, and the sludge sandwiched between the bands is pressed by the rolls to dewater it. Then, in the final step, the bands are separated from each other, and the dehydrated cake adhering to the bands is peeled off and discharged outside the machine.

Problems to be Solved by the Invention However, in the conventional configuration described above, when the bands are separated from each other, the dehydrated cake adhering to the upper band does not fall to a predetermined position due to a distance of 91 m, and the gap between the bands increases. There was a problem with the aircraft falling out of the aircraft through the gap.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a device for preventing sideways falling of a cake in a belt press, which can prevent a dehydrated cake peeled from a band from falling off to the side.

Means for Solving the Problems In order to solve the above problems, the present invention arranges a pair of guide rolls vertically apart from each other in front of an end roll that sends out two filter cloths in a stacked manner. In a belt press that guides the filter cloth to the roll and guides the lower filter cloth to the lower guide roll to separate the filter cloth from each other, there are The structure is such that a side plate having a shape similar to the gap to be formed is supported by a fixing member.

Effect With the above-described structure, the dehydrated cake that is sandwiched between two layers of filter cloth and sent out from the end roll adheres to either the upper filter cloth guided by the upper guide roll or the lower cotton cloth guided by the lower guide roll. do. The dehydrated cake adhering to the lower filter cloth then peels off when the lower filter cloth is guided by the lower guide roll and reverses, falling in front of the lower guide roll and adhering to the upper filter cloth. The dehydrated cake is naturally peeled off by its own weight and falls onto the lower filter cloth, and together with the dehydrated cake attached to the lower filter cloth, it falls in front of the lower guide roll.

At this time, the side plate prevents the dewatered cake from escaping to the side of the filter cloth from the gap between the upper filter cloth and the lower filter cloth due to a peeling problem.

EXAMPLE An example of the present invention will be described below based on the drawings. 1st
In Figures to Figure 3, a belt press 1 has a plurality of rolls 2.
A pair of upper and lower belt-shaped filter cloths 3 are provided endlessly between each roll 2 with a hook extending therebetween. Moreover, a rotary mixer 6 is provided above the belt press 1 to mix the sludge 4 with a flocculant 5 and supply the mixture.

A pair of guide rolls 8.9 are placed vertically apart from each other by an appropriate distance in front of the end roll 7, which is located at the end of the process of sending out two layers of filter cloth 3 among each roll 2. 7, the upper filter cloth 3a located above is guided to the upper guide roll 8, and the lower filter cloth 3b located below the end roll 7 is guided to the lower guide roll 9. Therefore, between the end roll 7 and the guide rolls 8 and 9, both filter cloths 3a,
A gap having a triangular cross section is formed between 3b.

Then, side plates l are located on both sides of the filter cloth 3 within the gap.
O is placed. This side plate 1O is formed in a triangular shape similar to the above-mentioned gap, and includes a metal seat plate 12 supported by a fixing member 11 and a rubber plate 1 attached to the seat plate 12.
It is formed by 3.

The effects of the above configuration will be explained below.

The sludge 4 mixed with the flocculant 5 in the rotary mixer 6 is supplied between the filter cloths 3 of the belt press 1, and while the filter cloth 3 moves between the plurality of rolls 2, the sludge 4 is Dehydrated under pressure.

The dehydrated cake 14 that is sandwiched between two layers of filter cloths 3a and 3b and sent out from the end roll 7 is either the upper filter cloth 3a guided to the upper guide roll 8 or the lower filter cloth 3a guided to the lower guide roll 9. It adheres to the filter cloth 3b on the side. Then, when the lower filter cloth 3b is guided by the lower guide roll 9 and reversed, the dehydrated cake 14 adhering to the lower filter cloth 3b is peeled off and falls in front of the lower guide roll 9.
The dehydrated cake 14 adhering to the upper filter cloth 3a is naturally peeled off by its own weight and falls onto the lower filter cloth 3b, and together with the dehydrated cake 14 adhering to the lower filter cloth 3b, it is transferred to the front of the lower guide roll 9. to fall.

At this time, the dehydrated cake 14 attached to the upper filter cloth 3a is separated from the upper filter cloth 3a and the lower filter cloth 3b due to a problem of peeling.
Although the dehydrated cake 14 tries to escape from the gap to the side of the filter cloth 3, such a dehydrated cake 14 is blocked by the side plate IO.

Effects of the Invention As described above, according to the present invention, the side plate can prevent the dehydrated cake from escaping to the side of the filter cloth from the gap between the upper filter cloth and the lower filter cloth due to a peeling problem. can.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram showing one embodiment of the present invention, FIG. 2 is an enlarged perspective view of section A in FIG. 1, and FIG. 3 is a front view of FIG. 2. 3... Filter cloth, 7... End roll, 8, 9... Guide roll, lO... Side plate.

Claims (1)

[Claims] 1. A pair of guide rolls are placed vertically apart in front of the end roll that sends out two layers of filter cloth, and the upper filter cloth is guided to the upper guide roll, and the lower filter cloth is guided to the lower guide roll. In a belt press that separates filter cloths from each other by guiding them, side plates having a shape similar to the gap formed between both filter cloths are supported by fixing members on both sides of the filter cloth between an end roll and a guide roll. A device for preventing cake from falling sideways on a belt press.