JPS592879Y2 - Rotary aeration cylinder - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rotary aeration cylinder useful for use in an ink removal device for waste paper pulp (inking device) or an aeration tank using an active treatment method in sewage treatment equipment.

Conventionally, the aeration cylinder in the above ink removing device is shown in Fig. 1 and Fig. 2.
As shown in the figure, flanges 3 and 4 are arranged at both ends of the aeration pipe main body 1 made of ceramic and has numerous inlets through mounting bolts and nuts 2, and communicate with one flange 4 at equal angle intervals. A hole 5 is bored and an air supply hole 6 is provided, and this is used as it is for a dinking tank (not shown).
the aeration cylinder body 1 through the air supply hole 6 and the communication hole 5.
Air was supplied to the inside, and the raw material was aerated through sunlight entering the aeration cylinder main body 1.

However, after many years of use, these products accumulate suspended solids in the water, and the surface of the aeration tube gradually becomes clogged.
Therefore, each time it became clogged, it required a great deal of time and effort to maintain it, which also affected the plant's processing capacity.

The present invention was developed in view of the above-mentioned drawbacks of the conventional technology, and by aerating the aeration tube while rotating it around its axis using aeration air, water that tends to adhere to the surface of the aeration tube is removed. To provide a rotary aeration cylinder which can perform initial aeration while preventing the accumulation of suspended solids and the like and clogging of the surface of the aeration cylinder.

An embodiment of the present invention will be described below with reference to FIGS. 3 to 9.

7 is the main body of the diffuser cylinder made of ceramic with countless suns, 8
are reaction vanes arranged at equal angles between the inner ring 9A and the outer ring 9B, which are concentric with each other, and the four alternately positioned recoil vanes have both ends slightly protruding from the others.

10 is a flange placed at the tip of the aeration pipe;
As clearly shown in FIG. 9, it has a fitting groove 11 of the aeration pipe main body 7 and a socket 12 for inserting the protruding end of the reaction blade 8 on its inner side, and also has a socket 12 at the base of the aeration pipe. Similarly, the flange 13 disposed at the end has a fitting groove 1 on the inner surface of the aeration cylinder body.
4 and a reaction blade socket 15.

Reference numeral 16 denotes a supply cylinder, and the supply cylinder 16 has rotary support shafts 17 and 18 at its distal end and base end, respectively, and an air supply hole 19 is formed in the rotary support shaft 18 at the base end.

The supply cylinder 16 has a large number of air injection holes 2 oriented in the tangential direction thereof.
0 is set.

That is, as is clear from FIGS. 5 and 6, these air injection holes 20 are formed all around the feed cylinder 16, and their openings are arranged in a zigzag shape along the axis of the feed cylinder 16. They are arranged so that they are located on an imaginary line having an inclination of 30 degrees with respect to the center axis.

In the above, both ends of the aeration pipe main body 7 and the protruding end of the reaction blade 8 are fitted and inserted into the groove 11.14 and the socket 12.15 of the flange 10.13, respectively, and at the same time, the shaft hole of the flange 10.13 The rotational support shaft 17.18 of the supply cylinder 16 is inserted through the flange 10.21, 22, and the rotational support shaft 17.18 is inserted into the flange 10.
13 and assemble as shown in Figures 3 and 4.

When the base end rotation support shaft 18 of the supply cylinder 16 is connected to the supply air source (not shown) in this way, the aeration cylinder main body 7 and the reaction device 8 are integrally connected by the flange 10.13. In this state, it can freely rotate around the supply cylinder 16.

In this state, the air supply cylinder 1 is passed from the air supply source through the air supply hole 19.
When air is supplied to the inside of 6, the air flows through the nozzle 2 of the supply cylinder 16.
It ejects in the tangential direction from 0 and does work on any of the reaction tools 8.

As a result, the rotational force generated in the reaction tool 8 is transferred to the flange 10.1.
3 to the aeration pipe main body 7, and the aeration pipe main body 7 rotates around the axis together with the reaction tool 8.

On the other hand, the air that has done the work then exits to the outside through the inlet of the aeration cylinder main body 7.

FIG. 10 shows a case where the rotary aeration cylinder described above is applied to an ink removal device from waste paper pulp.

In FIG. 10, reference numeral 25 denotes a dyeing tank, and waste paper inserts 26 and a dinging liquid outlet 27 are provided on both front and rear sides of the dinking tank 25, respectively.

It is necessary to separate the ink adhering to the waste paper as a pre-treatment step for the treatment in the dinking tank 25, but this is done by mixing the waste paper and water in a stirring tank (not shown) after cutting the waste paper. In addition, the hydrophilic nature of the waste paper releases inks in the waste paper into water.

The above-mentioned waste paper liquid refers to a liquid in which inks are liberated in water.

The waste paper liquid is introduced into the dinking tank 25 from the inlet 26, and after dinking there, the separated ink is collected into the drainage channel 30 by the weir plate 29 with the notch 28,
Treat as wastewater.

On the other hand, the waste paper liquid from which ink has been removed becomes a dinging liquid, passes under the weir plate 29, and is sent to the next process through the outlet 27.

Inks are removed from the waste paper liquid by passing fine air bubbles into the waste paper liquid from the bottom of the dinking tank 25.

To generate the bubbles, a rotary aeration cylinder according to the present invention is used.

That is, 31 is an air supply pipe communicating with an air supply source not shown,
A large number of inclined rotary aeration cylinders 32 are provided on the left and right sides of this air supply pipe 31.

In this case, the air supply pipe 31 and the rotary aeration cylinder 32 communicate through the air supply hole 19.

When air is supplied from the air supply pipe 31 to the rotary aeration cylinder 32 in this way, the air works against the reaction device 8 as described above, and then comes out into the waste paper liquid from the inlet of the aeration cylinder main body 7, forming air bubbles. and rise.

The aeration cylinder main body 7 rotates while generating bubbles.

Therefore, it is possible to prevent suspended substances from accumulating on the surface of the aeration cylinder main body 7, and at the same time, it is possible to perform initial aeration while preventing clogging (
(See Figure 3).

The above is a case in which the present invention is applied to an apparatus for removing ink from waste paper pulp, but the present invention is not limited to this, and can be similarly applied to an aeration tank for an active treatment method in sewage treatment equipment.

As described above, the rotary aeration cylinder according to the present invention can perform aeration while rotating the main body of the aeration cylinder using the aeration air flow, so that suspended particles on the surface of the aeration cylinder due to centrifugal force or sliding due to rotational movement. It is possible to prevent substances from accumulating.

Therefore, clogging of the aeration pipe is eliminated, and an accessory device for maintenance of clogging, such as a winch, becomes unnecessary.

Further, by configuring as in the above embodiment, assembly is easy, and operation and maintenance are easy.

[Brief explanation of the drawing]

Figure 1 is a longitudinal cross-sectional side view of the conventional model, and Figure 2 is A of Figure 1.
-A arrow view, and Fig. 3 to Fig. 9 show an embodiment of the present invention, Fig. 3 is an overall vertical sectional side view, and Fig. 4 is a B-- of Fig. 3.
B arrow view, FIG. 5 is a side view of the supply cylinder 16, FIG. 6 is a partially exploded view of the supply cylinder 16, FIG. 7 is an enlarged view of the main part of FIG. 4, and FIG. 8 is a longitudinal side view of the flange 10. Fig. 9 shows flange 1
FIG. 10 is a partially cutaway perspective view of the ink removing device. 7...Dispersion cylinder main body, 8...Reaction gear, 1
6...Buffing cylinder, 20...Air jet hole,
31...Air supply pipe, 32...Rotary aeration cylinder.

Claims (1)

[Scope of utility model registration request] A supply cylinder is fitted concentrically into the aeration cylinder main body which is rotatable around the axis, an air jet hole is formed in the tangential direction in the supply cylinder, and a reaction blade is provided between the supply cylinder and the aeration cylinder main body. A rotary aeration cylinder characterized by a reaction blade and an aeration cylinder main body that are integrally connected.