JP2017140563A - Solid-liquid separator and solid-liquid separation method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solid-liquid separator capable of efficiently separating solid contents adhering to the opening part of a rotary drum, and a solid-liquid separation method.SOLUTION: A solid-liquid separator K comprises: a treatment tank 1 for receiving a liquid to be treated; a rotary drum 2, disposed to be rotatable as it remains partially immersed in the liquid in the treatment tank 1, an outer peripheral wall 21 of which has a plurality of openings 22; a supply passage 4 for supplying the liquid to be treated into the treatment tank 1; a drainage passage 5 for leading water in the rotary drum 2 out of the treatment tank 1; solid content discharge means 6, which peels solid contents adhering to the outer peripheral surface of the rotary drum 2 to discharge them out of the treatment tank 1; and liquid jet means 7 for jetting a liquid out of the rotary drum 2 toward the opening 22 of the rotary drum 2 to separate solid contents adhering to the opening 22.SELECTED DRAWING: Figure 1

Description

    The present invention relates to a solid-liquid separation device and a solid-liquid separation method, and more particularly, to a solid-liquid separation device and a solid-liquid separation method capable of efficiently separating solids attached to an opening of a rotary drum.

    Conventionally, a solid-liquid separation device, for example, a liquid is ejected from the outside of a rotating drum toward the opening of the rotating drum to separate foreign matters attached to the opening (see Patent Document 1). ).

JP 2001-248087 A

    However, in the solid-liquid separator, since the liquid is ejected from the outside of the rotating drum toward the opening of the rotating drum, the foreign matter attached to the opening cannot be separated, and the liquid There arises a problem that foreign matter cannot be efficiently separated from the liquid.

    An object of this invention is to provide the solid-liquid separation apparatus and solid-liquid separation method which can isolate | separate a liquid and solid efficiently from the process target object containing the liquid made | formed in consideration of the said problem.

    The solid-liquid separation device according to claim 1 is a processing tank that receives a liquid to be processed, and a rotation tank that is rotatably disposed in a state of being partially immersed in the liquid in the processing tank, and whose outer peripheral wall has a plurality of openings. A drum, a supply passage for supplying the liquid to be treated to the treatment tank, a drainage passage for guiding water in the rotating drum to the outside of the treatment tank, and a solid content attached to the outer peripheral surface of the rotating drum are peeled off. And a solid content discharging means for discharging out of the processing tank, and a liquid is ejected from the inside of the rotating drum toward the opening of the rotating drum, so that the solid content adhering to the opening is discharged. And liquid ejecting means for separation.

    The solid-liquid separation device according to claim 2 is the solid-liquid separation device according to claim 1, wherein the rotating drum has a rotating shaft in a substantially horizontal direction, and the liquid ejecting means has a rotating shaft of the rotating drum. A horizontal pipe provided therethrough, and a branch pipe branched from the horizontal pipe and directed toward the opening of the rotary drum, the liquid being ejected from a tip of the branch pipe, and the rotation The solid content attached to the opening of the drum is separated.

    The solid-liquid separator according to claim 3 is the solid-liquid separator according to claim 1, wherein the peripheral surface of the opening of the outer peripheral wall of the rotary drum is formed of a titanium oxide thin film, and a treatment tank. And a UV lamp that is irradiated so as to be directed toward the peripheral surface of the opening of the outer peripheral wall of the rotating drum above the liquid level.

    According to a fourth aspect of the present invention, there is provided a solid-liquid separation method comprising: a treatment tank for receiving a liquid to be treated; and a rotatable arrangement in a state of being partially immersed in the liquid in the treatment tank. A rotating drum having a supply passage for supplying the liquid to be treated to the treatment tank, a drainage passage for guiding water in the rotating drum to the outside of the treatment tank, and a solid content adhering to the outer peripheral surface of the rotation drum. And a solid content discharging means for discharging the liquid to the outside of the treatment tank, and the liquid is ejected from the rotating drum toward the opening of the rotating drum, and adhered to the opening. The separated solid content is separated.

    The solid-liquid separation method according to claim 5 is the solid-liquid separation method according to claim 4, wherein the peripheral surface of the opening of the outer peripheral wall of the rotary drum is formed of a titanium oxide thin film, and the liquid in the treatment tank A UV lamp that is arranged so as to be rotatable in a partially immersed state and is irradiated so as to be directed toward the peripheral surface of the opening of the outer peripheral wall of the rotating drum above the liquid level of the processing tank, Solid matter adhering to the peripheral surface of the opening of the outer peripheral wall of the rotating drum is irradiated by the UV lamp, and after irradiation, liquid is ejected from the rotating drum toward the opening of the rotating drum. Thus, the solid content adhering to the opening is separated.

    The solid-liquid separation method according to claim 6 includes a treatment tank that receives sewage containing oil to be treated, an outer peripheral wall having a plurality of openings, and a peripheral surface of the opening is a titanium oxide thin film. A rotating drum formed and arranged to be rotatable in a state of being partially immersed in the liquid in the processing tank, and toward the peripheral surface of the opening of the rotating drum above the liquid level of the processing tank To the treatment tank, a supply passage for supplying the liquid to be treated to the treatment tank, a drain passage for guiding the water in the rotary drum to the outside of the treatment tank, and an outer peripheral surface of the rotary drum Solid content discharging means for peeling off the attached solid content and discharging it to the outside of the treatment tank, and irradiating the solid content adhering to the outer peripheral wall surface of the rotating drum with the UV lamp. The outer peripheral wall surface of the rotating drum It is intended to separate the solids adhering to the outer peripheral wall surface of the rotary drum submerged in the liquid in the processing bath from the outer peripheral wall surface of the rotary drum.

   According to the solid-liquid separator according to claim 1, the liquid ejecting unit that ejects the liquid from the inside of the rotating drum toward the opening of the rotating drum and separates the solid content attached to the opening. Since it is provided, solids adhering to the opening can be separated efficiently compared to the conventional one in which liquid is ejected from the outside of the rotating drum toward the opening of the rotating drum.

    Further, according to the solid-liquid separator according to claim 2, in addition to the effect of the invention according to claim 1, the liquid ejecting means includes a horizontal pipe provided through the rotating shaft of the rotating drum, And a branch pipe provided so as to branch from the horizontal pipe and toward the opening of the rotating drum, so that liquid is ejected from the tip of the branch pipe and adhered to the opening of the rotating drum. Solids can be separated.

    According to the solid-liquid separator of claim 3, in addition to the effect of the invention of claim 1, the rotating drum in which the peripheral surface of the opening of the outer peripheral wall of the rotating drum is formed of a titanium oxide thin film. And a UV lamp that irradiates toward the peripheral surface of the opening of the outer peripheral wall of the rotating drum above the liquid level of the treatment tank, so that it adheres to the opening by the oxidizing power due to the photocatalytic effect. The solid content thus obtained can be processed by deodorizing, sterilizing, or the like.

    According to the solid-liquid separation method of claim 4, the liquid is ejected from the inside of the rotating drum toward the opening of the rotating drum, so that the solid content attached to the opening is separated. Compared with the conventional one in which liquid is ejected from the outside of the drum toward the opening of the rotating drum, the solid content adhering to the opening can be separated efficiently.

    According to the solid-liquid separation method of claim 5, in addition to the effect of the invention of claim 4, the rotating drum in which the peripheral surface of the opening of the outer peripheral wall of the rotating drum is formed of a titanium oxide thin film. And a UV lamp that irradiates toward the peripheral surface of the opening of the outer peripheral wall of the rotating drum above the liquid level of the treatment tank, so that it adheres to the opening by the oxidizing power due to the photocatalytic effect. The solid content thus obtained can be processed by deodorizing, sterilizing, or the like.

    Moreover, according to the solid-liquid separation method of claim 6, since the solid content in the sewage adhered to the outer peripheral wall surface of the rotating drum is irradiated by the UV lamp, the oil content in the solid content is separated and adhered after irradiation. The solid content adhered to the outer peripheral wall surface of the rotating drum due to the outer peripheral wall surface of the rotating drum being immersed in the liquid in the treatment tank can be easily separated from the outer peripheral wall surface of the rotating drum.

FIG. 1 is a schematic cross-sectional view of a solid-liquid separator according to an embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of FIG. FIG. 3 is a schematic enlarged cross-sectional view of a part of FIG.

A solid-liquid separation apparatus and solid-liquid separation method according to an embodiment of the present invention will be described with reference to the drawings (FIGS. 1 to 3).
K shown in FIG. 1 is a solid-liquid separation device that separates a liquid and a solid content from a processing object including a liquid (a processing object including a liquid is, for example, white water, sewage, etc.)
The solid-liquid separator K is disposed so as to be rotatable in a state in which the surface of the processing tank 1 that receives the liquid to be processed and the outer peripheral wall 21 is formed of a titanium oxide thin film and is partially immersed in the liquid in the processing tank 1. The rotating drum 2 in which the wall 21 has a plurality of openings 22, the UV lamp 3 that is irradiated toward the surface of the outer peripheral wall 21 of the rotating drum 2 that is above the liquid level of the processing tank 1, and the processing tank 1 The supply passage 4 for supplying the liquid to be treated, the drainage passage 5 for guiding the water in the rotary drum 2 to the outside of the treatment tank 1, and the solid content 10 adhering to the outer peripheral wall 21 surface of the rotary drum 2 are peeled off, The solid content discharging means 6 for discharging out of the processing tank 1 and the liquid (for example, water) are ejected from the inside of the rotating drum 2 toward the opening 22 of the rotating drum 2 and adhered to the opening 22. Liquid ejecting means 7 for separating the solid content 10 .

The rotating drum 2 described above has a rotating shaft 23 in a substantially horizontal direction, and the liquid ejecting means 7 includes a horizontal pipe 71 provided through the rotating shaft 23 of the rotating drum 2, and a horizontal pipe 71. A branch pipe 72 is provided so as to branch to the opening 22 that is above the liquid level of the treatment tank 1 of the rotary drum 2. The tip of the branch pipe 72 is above the liquid level of the processing tank 1. 73 shown in FIG. 2 is a pump.
The tip of the branch pipe 72 shown in FIG. 2 is above the liquid level of the processing tank 1, but the tip of the branch pipe 72 may be in the liquid level of the processing tank 1 in some cases.

As shown in FIG. 2, 24 and 24 are bearings, 25 and 26 are sprockets, 27 is a chain, 28 is a motor, 29 is a rotary joint, and the rotation of the motor 28 is fixed by the rotary joint 29 on the horizontal pipe 71. The rotary drum 2 is rotated by being transmitted to the rotary shaft 23 via the sprocket 26, the chain 27, and the sprocket 25.
2, 100 is the first cylinder, 101 is the first cylinder 100 and the rotary shaft 23 (the rotary shaft 23 located on the left of the rotary shafts 23, 23 in FIG. 2). 102 is a key for integrating the first cylindrical body 100 and the sprocket 25, 201 is the second cylindrical body 200 and the rotary shaft 23 (the rotary shafts 23, 23 in FIG. 2). Among them, a welding site for integrating the rotating shaft 23) located on the right side.
The solid matter discharge means 6 includes, for example, a transfer roll 61 that transfers the solid content 10 on the rotary drum 2 and a doctor 62 that scrapes and removes the solid content 10 on the transfer roll 61.

And the solid content 10 adhering to the peripheral surface of the opening part 22 of the outer peripheral wall 21 of the rotating drum 2 is irradiated by the UV lamp 3, and after irradiation, the peripheral part of the opening part 22 of the outer peripheral wall 21 of the adhering rotating drum 2 The solid content 10 that is immersed in the liquid in the processing tank 1 and adhered to the peripheral surface of the opening 22 of the outer peripheral wall 21 of the rotating drum 2 is separated from the surface of the outer peripheral wall 21 of the rotating drum 2. .
The opening 22 can be formed, for example, by stretching a stainless steel net coated with titanium oxide on the side surface of the rotary drum 2.

Therefore, according to the solid-liquid separation device (solid-liquid separation method) K described above, the solid content adhered to the opening 22 by ejecting liquid from the rotating drum 2 toward the opening 22 of the rotating drum 2. Since the liquid ejecting means 7 for separating 10 is provided, it adheres to the opening 22 as compared with the conventional one in which liquid is ejected from the outside of the rotating drum 2 toward the opening 22 of the rotating drum 2. The solid content 10 can be separated efficiently.
Moreover, the solid content (especially in waste water) which adhered to the opening part 22 by the oxidizing power by the photocatalytic effect by the rotating drum 2 and the UV lamp 3 with which the peripheral surface of the opening part 22 of the outer peripheral wall 21 was formed with the titanium oxide thin film (Oil content) 10 can be processed by deodorizing, sterilizing, or the like.
In particular, when the liquid to be treated is “sewage containing oil”, the solid content 10 in the sewage is irradiated by the UV lamp 3, so the oil in the solid content 10 is separated and attached to the rotation after irradiation. The solid content 10 attached to the surface of the outer peripheral wall 21 of the rotating drum 2 due to the surface of the outer peripheral wall 21 of the drum 2 being immersed in the liquid in the processing tank 1 can be easily separated from the surface of the outer peripheral wall 21 of the rotating drum 2. .

K solid-liquid separator 1 treatment tank 2 rotating drum 4 supply passage 5 drainage passage 6 solid content discharge means 21 outer peripheral wall 22 opening

Claims (6)

A treatment tank for receiving the liquid to be treated;
A rotating drum that is rotatably arranged in a state of being partially immersed in the liquid in the treatment tank, and an outer peripheral wall having a plurality of openings;
A supply passage for supplying the liquid to be processed to the processing tank;
A drainage passage for guiding the water in the rotating drum to the outside of the treatment tank;
Solid content discharging means for peeling off the solid content attached to the outer peripheral surface of the rotating drum and discharging the solid content to the outside of the treatment tank;
Solid-liquid separation, comprising: liquid ejecting means for ejecting liquid from the rotating drum toward the opening of the rotating drum to separate solid matter attached to the opening. apparatus. The rotating drum has a rotating shaft in a substantially horizontal direction,
The liquid ejecting means includes a horizontal pipe provided through the rotation shaft of the rotary drum, and a branch pipe branched from the horizontal pipe and provided toward the opening of the rotary drum,
The solid-liquid separator according to claim 1, wherein a liquid is ejected from a tip of the branch pipe to separate a solid content attached to the opening of the rotating drum. A rotating drum in which the peripheral surface of the opening of the outer peripheral wall of the rotating drum is formed of a titanium oxide thin film;
The solid-liquid separation device according to claim 1, further comprising: a UV lamp that irradiates toward a peripheral surface of an opening portion of the outer peripheral wall of the rotating drum that is above the liquid level of the processing tank. . A treatment tank for receiving the liquid to be treated;
A rotating drum that is rotatably arranged in a state of being partially immersed in the liquid in the treatment tank, and an outer peripheral wall having a plurality of openings;
A supply passage for supplying the liquid to be processed to the processing tank;
A drainage passage for guiding the water in the rotating drum to the outside of the treatment tank;
Solid content discharging means for peeling the solid content adhering to the outer peripheral surface of the rotating drum and discharging it to the outside of the treatment tank,
A solid-liquid separation method, wherein a liquid is ejected from the rotating drum toward the opening of the rotating drum to separate solids attached to the opening. The peripheral surface of the opening of the outer peripheral wall of the rotating drum is formed of a titanium oxide thin film, and is arranged rotatably in a state of being partially immersed in the liquid in the treatment tank,
A UV lamp is provided that irradiates toward the peripheral surface of the opening of the outer peripheral wall of the rotating drum above the liquid level of the processing tank;
Solid matter adhering to the peripheral surface of the opening of the outer peripheral wall of the rotating drum is irradiated by the UV lamp, and after irradiation, liquid is ejected from the rotating drum toward the opening of the rotating drum. The solid component adhering to the opening is separated. The solid-liquid separation method according to claim 4. A treatment tank for receiving sewage containing oil to be treated;
The outer peripheral wall has a plurality of openings, the peripheral surface of the opening is formed of a titanium oxide thin film, and a rotating drum that is rotatably arranged in a state of being partially immersed in the liquid in the treatment tank;
A UV lamp irradiated toward the peripheral surface of the opening of the rotating drum above the liquid level of the processing tank;
A supply passage for supplying the liquid to be processed to the processing tank;
A drainage passage for guiding the water in the rotating drum to the outside of the treatment tank;
Solid content discharging means for peeling the solid content adhering to the outer peripheral surface of the rotating drum and discharging it to the outside of the treatment tank,
The solid matter attached to the outer peripheral wall surface of the rotating drum is irradiated by the UV lamp, and after irradiation, the outer peripheral wall surface of the rotating drum attached is submerged in the liquid in the processing tank, and the outer peripheral wall of the rotating drum A solid-liquid separation method characterized by separating the solid content adhering to the surface from the outer peripheral wall surface of the rotating drum.

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