JPS5850525B2 - Bulky filter tank - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of an atmosphere-opening type bag filter tank used in Hiroku Industries, and particularly includes a mechanism for damping inflow pressure at the upper part of the tank, and also facilitates maintenance. Regarding the considered bag filter tank.

Conventionally, bag filter tanks have been used in places with high inflow pressure, especially for backwashing water from strainers, etc., due to the need to prevent excessive pressure from being applied to the pack filter, and the backwashing effect. Because of the need to dampen the flow to atmospheric pressure in order to improve the air flow, it is recommended to install an atmospheric release tank in front of the bag filter tank, receive the flow once into this tank, and then allow it to flow naturally into the bag filter tank. It was always.

However, this method requires two types of tanks.
Installation space (heightwise and horizontally) was wasted, and maintenance work was time-consuming because it was located at a high location.

Furthermore, by dividing the tank into two, it has become necessary to secure extra capacity.

The purpose of the present invention is to take into consideration the drawbacks of the above two types of tanks, provide a damping effect on inflow pressure and ease of replacing bag filters, and reduce maintenance efforts by half by eliminating the atmosphere release tank. The object of the present invention is to provide a bag filter tank that can reduce installation space.

An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, a liquid inlet pipe 2 is provided on the radial peripheral wall of a body 1 of the bag filter tank, and a liquid outlet pipe 3 is provided on the bottom surface of the body 1.
is installed.

Further, a tank lid 4 is attached to the upper opening of the body 1 at an upper flange 5 portion of the body 1 with bolts and nuts.

This tongue lid 4 is open at the center, and an opening/closing lid 6 is installed with a hinge structure.

Incidentally, the tank lid 4 is provided with a vent pipe I whose upper end is shaped downward.

Further, from the opening of the tank lid 4, an internal wall 8 is installed that descends into the body 1.

On the other hand, in the middle part of the body 1, a conical mirror plate 9, for example, is installed as a partition plate for partitioning the inside of the body 1 in the vertical direction in a descending shape toward the center of the body 1.

A bag filter 10 is attached to the center below the end plate 9.

In addition, a liquid level gauge 11 is provided in the upper part of the body 1, and this liquid level gauge 11
An overflow pipe 12 is provided further above.

Next, the structure of the bag filter tank portion of the pack filter tank will be explained with reference to FIG. 2.

The bag filter 10 includes a stepped ring-shaped bag filter receiver 1 that is engaged with a hook-shaped unit receiver 13 formed at the tip of a conical end plate 9 provided in the middle of the body 1.
4, and is held by a stepped ring-shaped bag filter holder 15.

Furthermore, a handle 16 is provided on the bag filter receiver 14.

Next, the structure of the upper part of the tank will be explained with reference to FIGS. 3 and 4.

The replacement lid 6 of the bag filter 10 has a hinge 1T.
It has a structure that can be opened and closed at will.

A lid handle 18 is provided on the opposite side of the hinge 17.

Further, on the upper surface of the tank lid 4, two clamp receivers 1 are provided in a direction crossing the hinge 11 and the lid handle 18.
9 is installed and has a structure to engage with the lid clamp 20.

Note that a bundle 21 is fixed to the center position of the lid clamp 20.

This lid clamp 20 has a structure that allows it to rotate around a fulcrum 20a.

Next, the effect will be explained.

First, the behavior of the processing liquid in the tank will be explained.

The processing liquid flows into the tank from the liquid inlet pipe 2.

The inflowing processing liquid collides with the internal wall 8 attached to the tank lid 4 and falls while lowering the inflow pressure.

The falling processing liquid is filtered through a bag filter 1 by a partition plate, that is, a conical end plate 9 attached to the center of the tank.
0 flows to the center where it is attached.

This processing liquid is applied to the conical end plate 9 and the bag filter receiver 14.
The water flows smoothly into the bag filter 10 due to the steps provided between the bag filter holder 15 and the bag filter holder 15.

The processing liquid that has flowed in is passed through the bag filter 10 and discharged from the liquid outlet pipe 3.

If the liquid level in the tank rises due to clogging of the bag filter 10, etc., it is detected by the liquid level gauge 11, the inflow of the processing liquid is stopped, and the inside of the tank and the lines are investigated and countermeasures are taken.

If the detection and the stoppage of the processing liquid are not carried out quickly, the excess processing liquid will overflow from the overflow pipe 12.

Next, a method for attaching and replacing the bag filter 10 will be explained.

Attach the bag filter 10 on top of the bag filter receiver 14, place the bag filter presser 15 on top of it to prevent the bag filter from moving, open the opening/closing lid 11, and hold the handle 16 attached to the bag filter receiver 14. Put it inside the tank and attach it to the unit receiver 13 which is attached to the conical end plate 9.

The opening/closing lid 6 can be easily opened and closed by holding the lid handle 18 using the hinge 17.

In addition, to fix the opening/closing lid 6, rotate the lid clamp 20 attached to one side of the clamp receiver 19 attached to the tank lid 4 to the center of the opening/closing lid 6 around the fulcrum 20a, and then turn the lid clamp 20 attached to the other side. This can be done easily by setting it on the clamp receiver.

Further, the opening/closing lid 6 can be easily opened by performing the fixing operations in the reverse order.

As explained above, the bag filter tank of the present invention is
It combines the atmosphere release effect of the inflow pressure of the backwash water receiving tank and the overflow effect of the bag filter tank, and functionally satisfies the performance of both tanks.

That is, the momentum of the processing liquid flowing in at the upper part of the tank is suppressed and the process liquid is released to atmospheric pressure, so that the flow-through effect can be caused without applying excessive pressure to the lower bag filter.

In addition, the bag filter setting mechanism and replacement mechanism are also simplified, and maintainability is also sufficiently improved.

This allows you to focus on one tank instead of two.

Therefore, economical improvements can be achieved in terms of both space and production, and maintenance efforts can be simplified, and workability can also be improved.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a longitudinal sectional view showing one embodiment of the bag filter tank of the present invention, Fig. 2 is a sectional view showing the pack filter attachment part of the bag filter tank of Fig. 1, and Fig. The figure is a plan view showing the opening/closing mechanism of the opening/closing lid in Figure 1, and Figure 4 is the AA in Figure 3.
It is a sectional view taken in the direction of arrows. 2...Liquid inlet pipe, 3...Liquid outlet pipe, 6
・・・・・・Opening/closing lid, 8・・・Inner wall, 9・・・
...Conical mirror plate, 10...Bag filter.

Claims (1)

[Claims] 1. A tank body, a partition plate provided in the tank body to partition the inside of the tank body in the vertical direction, a bag filter provided below the partition plate and attached to the partition plate via a mechanism, and An opening/closing lid provided at the opening of the tank body, an inlet pipe for inflowing the processing liquid provided on the side surface of the tank body above the partition plate, an outlet pipe provided at the bottom of the tank body, and the processing liquid. and an internal wall provided in the body, which serves as a pressure reducing means for the bag filter tank.