JP3059825U - Diffuser - Google Patents

Abstract

(57) [Problem] To provide an air diffuser capable of efficiently and effectively performing air diffusion processing of a processing liquid and achieving compactness. SOLUTION: In a diffuser device which is installed on a support provided in a tank and diffuses a processing liquid, the diffuser device is disposed in a hollow frame with a mixer for feeding air from a pump. A plurality of perforated pipes, and the support is fixed to the bottom portion in the tank, and has a winch capable of winding up and down wires connected to the air diffuser, and driving the winch Thereby, the air diffuser can be moved up and down freely.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an air diffuser for aerating a treatment liquid stored in a tank.

[0002]

[Prior art]

 Conventionally, in the civil engineering / construction industry, pollution / chemical treatment industry, etc., water pollution prevention treatment, dephosphorization treatment, and denitrification treatment have used a diffuser to diffuse treatment liquid (slurry liquid). The technology is known. Generally, as shown in FIG. 4, air (oxygen) sent from a pump 2 is passed through an air diffuser 1 to generate fine air bubbles. What diffuses the processing liquid stored in the inside is known. In recent years, as shown in FIG. 6, a mixer 3 (FIG. 5) for feeding liquid is installed in front of the diffuser 1, and in this case, the flow of liquid generated by the mixer 3 is increased. As a result, the amount of oxygen transfer increases, so that the processing solution can be efficiently diffused. That is, as shown in FIG. 5, the mixer 3 is constituted by the guide cone 8 and the rotary blade 9 rotating at a high speed, and it is possible to suppress the rapid floating of fine bubbles by the generated liquid flow. FIG. 7 shows a schematic configuration of such an air diffuser 1, in which a plurality of perforated tubes 4 and 4 are uniformly arranged in a hollow frame 6, and these perforated tubes 4 have a large number of air holes. 5, 5 are perforated. Further, a delivery pipe 7 from the pump 2 (see FIG. 4) is connected to the frame 6. Therefore, the air sent from the pump 2 is discharged as fine bubbles from the bubble holes 5 and 5, and the processing bubbles can be diffused by the fine bubbles.

[0003]

[Problems to be solved by the invention]

 By the way, in the case of the above-mentioned conventional air diffuser, the air diffuser is fixedly installed on the bottom side of the column provided in the tank. For this reason, since the air diffuser is always located at the bottom of the tank, there is a possibility that the air is not effectively diffused to the upper part and the middle part of the tank. In addition, since a plurality of perforated pipes are arranged substantially in parallel (see FIG. 7), in order to improve the efficiency of aeration processing, the apparatus itself becomes larger when more perforated pipes are used. Problem.

Accordingly, an object of the present invention is to solve the above-mentioned problems of the conventional air diffuser, and to efficiently and effectively perform the air diffusion of the processing liquid over a wide range, and furthermore, to reduce the size. To provide an air diffuser that can be achieved.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the invention according to claim 1 is directed to a diffusing device which is installed on a support provided in a tank and diffuses the processing liquid, wherein the diffusing device is a pump. And a plurality of multi-hole pipes arranged in a hollow frame.The columns are fixed to the bottom of the tank and connected to the air diffuser. A winch capable of winding up the lifting wire, and being driven up and down by driving the winch.

According to a second aspect of the present invention, in the first aspect of the present invention, a rotating handle is provided on the column, and the air diffuser is rotatable by operating the rotating handle. It is characterized by the following.

According to a third aspect of the present invention, in the first aspect of the present invention, the perforated tube is disposed obliquely upward in the direction of liquid supply from the mixer. It is a feature.

[0008]

[Embodiment of the invention]

 In the first embodiment of the present invention shown in FIG. 1, the same parts as those in the conventional example are denoted by the same reference numerals, and the description thereof will be omitted. The different parts will be mainly described. 1 to 3 show the diffuser of the present invention. The feature of the present invention is that the air diffuser 1a is installed on the support 11 so as to be able to move up and down. That is, as shown in FIG. 1, a support 11 for installing the air diffuser 1a is rotatably fixed to the tank bottom 10a in the tank 10 (slurry tank). A winch 13 is provided so that the lifting wire 12 connected to the air diffuser 1a can be wound up via a relay arm 14.

On the other hand, the air diffuser 1 a has a mixer 3 for sending out air from a pump 2 (see FIG. 4), and a plurality of perforated pipes 17, 17 uniformly arranged in a hollow frame 16. The porous tube 17 has a large number of cell holes 5 and 5 formed therein. As shown in FIG. 2, the mixer 3 has a guide cone 8 and a rotary blade 9 which rotates at a high speed, and is provided integrally with the frame 16. Reference numeral 18 denotes an auxiliary frame that supports the frame 16 from below. The liquid flow from the mixer 3 makes it possible to suppress the rapid floating of fine bubbles. Further, in this example, the perforated tube 17 is arranged obliquely and upward in the direction in which the liquid is sent from the mixer 3, so that the generated fine bubbles can be diffused in a wide range. Reference numeral 20 denotes a delivery pipe connected to the frame 16, and compressed air is delivered from the pump 2 (see FIG. 4) through the delivery pipe 20. Therefore, the compressed air sent from the pump 2 is discharged as fine bubbles from the bubble holes 5, 5 through the frame 16 and the perforated pipe 17, and the fine bubbles disperse the processing liquid stored in the tank 10. You can do care.

Further, as shown in detail in FIG. 3, a flange plate 22 is connected to a rear end (left side in FIG. 3) of the frame 16, and one end of the flange plate 22 is extended and fixed. The plate 23 is formed. The fixing plate 23 is anchored to the tank 10. Further, as described later, a plurality of insertion holes 25 are formed in the flange plate 22, and the insertion holes 25 are used as rotation stoppers by stopper pins 27. The column 11 having a square shape is fitted into the elevating cylinder portion 24 provided inside the flange plate 22. Therefore, the column 11 is rotatable inside the elevating cylinder portion 24. Further, a turning handle 28 (see FIG. 1) is fixedly provided at an upper position of the column 11, and by operating (turning) the turning handle 28, the air diffuser 1a can be turned to a desired position. it can.

Hereinafter, with reference to FIGS. 1 and 3, the lifting and lowering and rotating operations of the air diffuser 1a will be described. That is, when raising and lowering the air diffuser 1a, the winch 13 is driven manually (or electrically). As a result, the air diffuser 1a connected to the lifting wire 12 can be pulled and set at a desired position, and the processing liquid can be diffused over a wide range. When adjusting the turning position of the air diffuser 1a, the turning handle 28 is operated. Accordingly, the air diffuser 1a also rotates with the rotation of the column 11, so that the direction of air diffusion (liquid feeding direction) by the mixer 3 can be freely changed. Thereby, the processing liquid can be effectively diffused by the diffusion device 1a. Here, fixing when the air diffuser is rotated is performed by inserting the stopper pin 27 into the predetermined insertion hole 25.

[0012]

[Effect of the invention]

 The present invention is as described above, and the invention according to claim 1 is a diffuser that is installed on a support provided in a tank and diffuses the processing liquid, and the diffuser is provided by a pump. It has a mixer for sending air and a plurality of perforated pipes arranged in a hollow frame, and the columns are fixed to the bottom of the tank and connected to a diffuser. The wind diffuser can be moved up and down by driving this winch.By changing the installation position of the air diffuser, the processing liquid can be efficiently diffused. In addition, there is an effect that it can be performed effectively over a wide range.

According to a second aspect of the present invention, in the first aspect of the present invention, the column is provided with a rotating handle, and the diffuser can be freely rotated by operating the rotating handle. Therefore, the air diffusion direction of the air diffusion device can be changed, and the air diffusion processing of the processing liquid can be performed efficiently and effectively over a wide range.

According to a third aspect of the present invention, in the first aspect of the present invention, the perforated tube is arranged obliquely upward in the direction in which liquid is sent from the mixer. This has the effect of reducing the fluid resistance of the liquid flow sent by the mixer, thereby reducing the load and realizing a compact air diffuser.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view showing a first embodiment of the present invention.

FIG. 2 is a front view of the air diffusing device.

FIG. 3 is a plan view of the air diffusing device.

FIG. 4 is a schematic explanatory view of a conventional air diffuser.

FIG. 5 is a schematic explanatory view showing a mixer.

FIG. 6 is a schematic explanatory view showing a form of a conventional air diffuser.

FIG. 7 is a schematic plan view showing the air diffusing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1a Air diffuser 2 Pump 3 Mixer 4, 17 Perforated pipe 5 Bubble hole 6, 16 Frame 7 Delivery pipe 8 Guide cone 9 Rotary blade 10 Tank 10a Tank bottom 11 Support 12 Lifting wire 13 Winch 14 Relay arm 16 Frame 18 Auxiliary frame 20 Delivery pipe 22 Flange plate 23 Fixing plate 24 Elevating cylinder 25 Insertion hole 27 Stop pin 28 Rotating handle

Claims (3)

[Utility model registration claims] 1. A diffuser installed on a support provided in a tank for diffusing processing liquid, wherein the diffuser is provided in a mixer for feeding air from a pump and in a hollow frame. A plurality of perforated pipes, and a supporting column is rotatably fixed to a bottom portion in the tank, and a winch capable of winding a lifting wire connected to an air diffuser is provided. An air diffuser characterized in that it can be moved up and down by driving. 2. The air diffusion device according to claim 1, wherein a rotation handle is provided on the support, and the air diffusion device is rotatable by operating the rotation handle. 3. The air diffuser according to claim 1, wherein the perforated tube is arranged obliquely upward in the direction of liquid supply from the mixer.