JPH03137921A - Immersion type separation apparatus - Google Patents

Abstract

PURPOSE:To easily arrange a filter part by forming a unit from a plurality of filter pipes and stacking a plurality of the units to form the filter part and providing connection pipes to the respective units. CONSTITUTION:An openable and closable upper lid 13a is opened by the hinge 12 of the upper lid 13 of a methane fermentation tank and a unit 2a having a connection pipe 21a whose lower end is closed by a lid 25 is suspended above the surface of an objective liquid. A separate unit 2b is placed on the unit 2a to be fixed thereto and the upper end of the connection pipe 21a and the lower end of a connection pipe 21b are connected by a union 22. In the same way, separate units 2... are connected to the unit 2b and the units are allowed to sink in the objective liquid from the lower units in succession. The connection pipes 21c, 21d of the final unit 2c are connected by the union 22 to form a filter part 3. By this method, the installation work of the filter part can be performed above the surface of the objective liquid.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an immersion-type separation system containing mainly methane bacteria, which filters a methane fermentation liquid and separates it into condensed water containing mainly methane bacteria and filtered water. It is something.

BACKGROUND OF THE INVENTION A conventional immersion type separator will be described below with reference to the drawings. This immersion type separation device filters organic wastewater such as sewage and human waste treated with methane light, and separates it into concentrated water containing mainly methane bacteria and filtrate water. In FIG. 4, a plurality of filtration tubes 1 made of ceramic having micropores for separation are provided vertically and laterally in a substantially horizontal manner, and one end of each of these filtration tubes 1 is closed. At the same time, a filtration section 3 is constructed by vertically arranging a large number of units 2 from which filtered water can be taken out from the other end.

This filtration section 3 is arranged inside the tank 4.

Further, the filtered water taken out from each unit 2 through the connecting pipe 5 is collected in a suction pipe 6 and discharged to the outside of the tank 4 by a pump 7. An air diffuser 8 is provided below the filtration section 3. 9 is a proa, which supplies methane gas produced by methane fermentation to the air diffuser 8. 10 is a target liquid supply unit, and this target liquid supply unit 1
The target liquid supplied from 0 into the tank 4 is circulated in the WJ 4 as shown by arrow A by methane gas from the aeration device 8. In addition, a sludge discharge pipe 11 is attached to the lower part of the pipe 4 from which thickened sludge (materials) can be taken out. Also, 4!
4 is provided with an upper lid 13 having an upper lid 13a that can be opened and closed by a hinge 12, and seals the tank 4.

Problems Komei is trying to solve In the above conventional configuration, when installing the filtration part 3 into the tank 4 or taking it out of the tank 4, the filtration part 3 and the suction pipe 6 are connected via the connecting pipe 5. Alternatively, a separation operation is required, and for this operation, the operation name must be entered in the tank 4. Therefore, there was a problem in that the target liquid had to be extracted from the tank 4 every time such work was performed.

The present invention solves the above-mentioned conventional problems, and aims to provide an immersion type separation device mainly for methane bacteria, in which the filtration part can be easily installed or removed without draining the target liquid in the tank. That is.

Means for Solving the Problems In order to solve the above problems, the immersion type separator of the present invention has the following features:
A solid-liquid separator that filters methane fermentation liquid and separates it into 8I condensate containing mainly methane bacteria and filtered water, and consists of one unit with multiple filtration tubes for filtering the target liquid. At the same time, it is possible to form a filtration section by stacking a plurality of units vertically, and in order to pass filtered water from each unit to each unit, one opening is communicated with the unit, and the remaining two openings are connected to each unit. The unit is characterized in that it is provided with a single-shaped connecting pipe in which the upper and lower parts are arranged, and that the single-shaped connecting pipes of vertically adjacent units can be removably connected to each other. .

Effects With the above configuration, 1. After connecting the single-shaped connecting pipes and pipes of the vertically adjacent units above the target liquid level in the premises, if the units are sequentially submerged into the target liquid, the target liquid can be drawn out from the tank. A filtration section is installed instead.

The single-shaped connecting pipe of the uppermost unit communicates with the drainage channel. On the other hand, if the filtration part is lifted out of the target liquid and separated one by one from the upper unit, the filtration part can be taken out without draining the target liquid, just like when it was installed.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a diagram for explaining the installation and removal of the filtration part of an immersion-type separator mainly for methane bacteria, which shows one embodiment of the present invention, and has the same functions and effects as the conventional example. are given the same reference numerals and their explanations will be omitted. 1st
In the figure, 2 is a unit, which is composed of a plurality of filtration tubes 1 for filtering the target liquid. In order to pass filtered water from each unit 2 to each unit 2,
A single-shaped connecting pipe 21 is provided, with one opening communicating with the unit 2 and the remaining two openings disposed at the top and bottom. The single-shaped connecting pipes 21 of vertically adjacent units 2 can be connected or separated from each other by a union 22. Reference numeral 23 denotes a suction pipe, which is disposed outside the tank 4 along the tank wall, and is fitted with an elbow 24 having a downward opening above the target liquid level.

The installation work of the filtration section 3 will be explained.

First, the upper part 11113a of the upper part 113 of the methane fermentation tank, which can be opened and closed by the hinge 12, is opened, and the single-shaped connecting pipe 21a is opened.
The unit 2a, whose lower end is closed with a lid 25, is suspended above the target liquid level. Next, another unit 2b is mounted and fixed on top of this unit 2a, and the upper end of the T'f-shaped connecting pipe 21a and the lower end of the 1-shaped connecting pipe 21b are connected by a union 22. This work is performed on the surface of the target liquid. Similarly, other units 2... are connected to the unit 2b and are submerged into the target liquid in order from the lower unit. Furthermore, the T-shaped connection @21c of the last unit 2C and the connecting pipe 21d directly below it.
are connected by a union 22 to form a filtration part 3, and this filtration part 3 is submerged in the target liquid to form a structure that is attached to the upper end opening of the single-shaped connecting pipe 21C and the suction pipe 23 and opens downward. The tube 24 is connected with the union 22, the filter product 3 is held in the target liquid, and finally 1i13a is closed.

When taking out the filter product 3 from the tank 4, contrary to the installation work of the filter product 3 described above, while gradually raising the filter product 3 above the target liquid level, place the unit 2 that has been placed on the target liquid level into one By reducing the number of unions 22 along with the character-shaped connecting pipe 21, they can be removed sequentially from the upper unit 2.

Therefore, the filter product 3 can be easily installed in or taken out from the tank 4 without draining the target liquid.

FIG. 2 is a diagram for explaining backwashing of a tube showing another embodiment of the present invention. Normally, it is effective to supply pressurized methane gas or the like to the inside of the filtration tube 1 to perform backwashing. For this reason, a single-shaped connection 1!21 is provided at one end of the unit 2, and a single-shaped connection pipe 26 is also provided at the other end. This single-shaped connecting pipe 26 has the same configuration as the single-shaped connecting pipe 21. The single-shaped connecting pipe 26 communicates with the blower 9 via a blowout pipe 27 and a valve 28 . In addition, a pulp 9 is provided in front of the diffuser @8.

With the above configuration, when installing and taking out the special product 30, the process can be performed in the same manner as shown in FIG. Can be done.

FIG. 3 shows a further embodiment of the present invention, in which the pump 7 is in a low position and the suction tube 31 is disposed within the interior of the pump 14. An elbow 32 is connected to the suction tube 31 above the target liquid surface. In FIG. 3, other structures are similar to those in FIG. 1, and installation and removal operations can be performed in the same manner.

Effects of the Invention As described above, according to the present invention, the unit constituting the filter product is joined to the single-shaped connecting pipe of the lower unit on the surface of the target liquid together with the single-shaped connecting pipe, and then the unit is connected to the single-shaped connecting pipe of the lower unit and then submerged in the target liquid. Since it is possible to lower and stir the filtered product, and the work to remove the filtered product can also be done on the surface of the target liquid, it is possible to easily install or remove the filtered product without draining the target liquid in the tank. Can be done.

[Brief explanation of the drawing]

Fig. 1 is a diagram for explaining the installation and removal work of filtered products of a immersion type separator mainly for methane bacteria, which shows one embodiment of the present invention, and Fig. 2 shows an embodiment of the present invention. A diagram for explaining backwashing of the filtration tube of the immersion type separator shown in the figure,
FIG. 3 is a diagram showing the configuration of the suction pipe when the pump of the same immersion type separator is in a low position showing still another embodiment of the present invention, and FIG. 4 is a diagram showing the configuration of the same conventional immersion type separator. FIG. 1...filtration tube, 2.2a, 2b, 2G...unit, 3, 30...filter product, 21.21a, 21b, 2
1c, 26 ・1-shaped connecting pipe, 22...union.

Claims (1)

[Claims] 1. A separation device that filters a methane fermentation liquid through a membrane immersed in a tank and separates it into a concentrated liquid mainly containing methane bacteria and filtrate water, which includes a plurality of devices for filtering the target liquid. One unit is composed of filtration tubes, and
Multiple units can be stacked one above the other to form a filtration section, and each unit has one opening that communicates with the unit and the other two openings that communicate with the upper part in order to pass filtered water from each unit. 1. An immersion type separation device, characterized in that a T-shaped connecting pipe is provided at a lower part of the unit, and the T-shaped connecting pipes of vertically adjacent units can be removably connected to each other.