JPH1057715A - Filter cloth supporting device for filter cloth traveling type filter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent filtrate whose temperature is lowered from being solidified and stuck on supporting rolls and also to eliminate the clogging by the solidified filtrate. SOLUTION: In a filter press in which a pair of filter cloths are hung between a lot of filter plates arranged in parallel so as to be freely openable and closable and the filter cloths are arranged so as to be freely ascendable and descendable, filter cloth supporting rolls 10 are hung from a pair of brackets 5 hung from the lower ends of the filter plates, and the supporting rolls 10 are provided with warmers 13 to prevent solid matter from being stuck on the supporting rolls to make the filter cloths meander and eliminate the clogging of the filter cloths due to solidified filtrate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating device for a filter cloth traveling type filter press for treating a stock solution such as oils and fats, and more particularly to a filter cloth supporting roll provided for reversing a filter cloth. The present invention relates to a filter press provided with a device.

[0002]

2. Description of the Related Art Conventionally, a pair of filter cloths is provided between filter plates, an upper edge of the filter cloth is attached to an upper filter cloth support bar, and a lower portion of the filter cloth is attached to a guide roll provided below the filter plate. After hanging around
A device that is attached to the lower filter cloth support bar, connects the drive medium to the upper and lower filter cloth support bars, and raises and lowers the filter cloth is described in, for example, Japanese Patent Publication No. 55-18528,
It is known as shown in the figures. And, a heating device is provided on the filter plate, and a device for heating the undiluted solution and the filtrate, for example,
It is publicly known as described in Japanese Utility Model Publication No. 3-23288.

[0003]

In the above-mentioned conventional filter cloth traveling type filter press, the cake formed between the filter cloths can be easily discharged below the filter plate. In the case of a viscous stock solution, when the stock solution is dehydrated, a dewatered cake is transferred to the guide roll, or the filtrate after dehydration solidifies due to the surrounding environment and adheres to the guide roll to meander the filter cloth. Was the cause. In addition, the filtrate passing through the filter cloth adheres to the back surface of the filter cloth, causing clogging of the filter cloth. Then, when the filter cloth is run, the filter cloth meanders, and there is a fear that the filter cloth wrinkles and the filter cloth is damaged. In the case where the filter plate is provided with a heating device in order to solve the above problem, it is possible to prevent clogging of the filter cloth and solidification of the filtrate, but the structure may be complicated.

[0004]

SUMMARY OF THE INVENTION The gist of the present invention is to provide a filter in which a pair of filter cloths is suspended between a large number of filter plates arranged in a freely openable and closable manner, and these filter cloths are arranged so as to be movable up and down. In the press, a filter fabric support roll is supported on a pair of brackets hanging down from the lower end of the filter plate, and a heating device is provided on the support roll.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is configured as described above. When the cake formed between the filter plates is run downward, the cake is peeled when the filter fabric is turned over along the guide roll. Is done. Since this guide roll is heated,
The solid matter adhering to the roll is dissolved, the temperature of the filtrate to be solidified and adhered is increased, the meandering of the filter cloth during running can be prevented, and wrinkling and breakage of the filter cloth can be prevented. Then, when the filter cloth is inverted along the guide roll, the solid matter attached to the back surface of the filter cloth can be dissolved and washed away, thereby eliminating clogging and recovering the filterability of the filter cloth.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the drawings. First, in FIG. 1, reference numeral 1 denotes a filter press, and a guide rail 2 of the filter press 1 has a large number of filter plates 3. It is slidably supported. As shown in FIG. 2, an upper bracket 4 is provided upright on the upper portion of the filter plate 3, and a lower bracket 5 is hung below the lower portion of the filter plate 3. Above the filter plate 3, a slide sprocket 7 is slidably and non-rotatably disposed on a drive shaft 6 provided along the filter plate 3... The part is supported by the upper bracket 4. A pair of filter cloths 8.8 are provided between the filter plates 3.3, and the upper ends of the filter cloths 3.3 are joined together and connected to the upper support bar 9. The lower portion of the filter cloth 3.3 is wrapped around guide rolls 10.10 provided on the front and rear lower brackets 5, respectively, and then attached to the adjacent filter cloth 8 to form the lower support bar
It is connected to. A drive chain 12 is hung around the slide sprocket 7 and both ends thereof are connected to an upper support bar 9 and a lower support bar 11, so that the filter cloth 8 moves up and down like a seesaw.

The guide roll 10 has a cylindrical shape. As shown in FIG. 3, a rod heater 13 is inserted into the guide roll 10, and connectors 14 and 15 are provided at both ends of the guide roll 10. It is provided. One connector 15 of the guide roll 10 is connected to the front guide roll 10.
Of the guide roll 10 is connected to a connector 15 of the rear guide roll 10 to supply power in series to a large number of guide rolls 10 arranged in parallel. I can do it. The electric power supplied from the one connector 14 heats the heater and heats the guide roll 10. Thereby, the guide roll 10 is heated to a temperature equal to or higher than the melting point of the solid matter of the processing stock solution, for example, 50 ° C. to 70 ° C., and the solid matter adhered to the roll is melted and washed away to prevent solidification of the filtrate and meander The wrinkles and breakage of the filter cloth due to can be released. At the same time, the filter cloth 8 traveling while being inverted can be heated to dissolve the solid matter adhering to the filter cloth 8 and to eliminate the clogging of the filter cloth 8. If a far-infrared radiator layer is applied to the outer peripheral surface of the guide roll 10, thermal efficiency can be increased. Where exhaust gas can be used as a heat source, the heating means may be steam or hot air. However, if a bar heater 13 is used as a heating device, the bar heater 13 in the guide roll 10 is connected to a power cable. Since it is continuously connected, there is no need to supply a heat source to the guide rolls 10 individually. Reference numeral 17 denotes an opening / closing chain of the filter plate 3 stretched in an endless manner on the rail 2, and is connected to a movable head 18.18 provided before and after the filter plate group 3. It opens and closes from both sides at the same time. Reference numeral 19 denotes a drive motor of the opening / closing chain 17. Reference numeral 20 denotes a liquid supply plate held above the filter cloth 8.8, and the undiluted solution is pressed into the filter cloth 8.8 from a supply path 21 provided in the filter plate 3.

[0008]

The present invention is configured as described above,
By heating the guide roll supporting the lower edge of the filter cloth, meandering of the filter cloth and clogging of the filter cloth can be eliminated.
That is, in the conventional apparatus, the scattered cake and the filtrate solidified due to the temperature drop adhere to the guide roll, the roll diameter becomes irregular, and the solidified filtrate adheres to the back side of the filter cloth, and the filter cloth meanders. This was causing clogging of the cloth. As a countermeasure, in a device in which a filter plate is heated, a large-capacity heat source and the device itself are complicated. By just heating, the roundness of the guide roll is maintained, wrinkling and breakage of the filter cloth due to meandering of the filter cloth can be prevented, and clogging of the filter cloth can be eliminated at the same time.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a filter press in which filter plates are arranged in parallel.

FIG. 2 is a side view showing a main part of the filter cloth traveling type filter press according to the present invention in a suspended state of the filter cloth.

FIG. 3 is a partial longitudinal sectional side view of a filter cloth supporting device according to the present invention.

[Explanation of symbols]

 3 Filter plate 5 Lower bracket 8 Filter cloth 10 Guide roll 13 Bar heater

Claims (1)

[Claims] 1. A large number of filter plates 3 arranged in a freely openable and closable manner.
In a filter press in which a pair of filter cloths 8.8 are suspended between them and these filter cloths 8 are arranged so as to be able to move up and down, the filter cloths 8 are attached to a pair of brackets 5 suspended at the lower end of the filter plate 3. A support roll 10 is supported, and a heating device 1
3. A filter cloth supporting device in a filter cloth traveling type filter press, wherein the filter cloth is provided.