CN209759131U

CN209759131U - Aerator for industrial wastewater treatment

Info

Publication number: CN209759131U
Application number: CN201920461187.3U
Authority: CN
Inventors: 万展麒
Original assignee: Foshan Ruifeng Environmental Protection Technology Co Ltd
Current assignee: Foshan Ruifeng Environmental Protection Technology Co Ltd
Priority date: 2019-04-04
Filing date: 2019-04-04
Publication date: 2019-12-10
Anticipated expiration: 2029-04-04

Abstract

The aerator for industrial wastewater treatment comprises an upper shell, a lower shell and an inner shell, wherein the joint of the lower shell and the upper shell is hermetically matched so that the upper shell and the lower shell enclose a first chamber; the top of the upper shell is provided with an air inlet communicated with the first cavity, the bottom of the lower shell is provided with a water inlet communicated with the second cavity, the periphery of the upper shell is provided with a plurality of upper spray pipes which are circumferentially arrayed around the central axis of the upper shell and communicated with the first cavity, the periphery of the lower shell is provided with a plurality of lower spray pipes which are circumferentially arrayed around the central axis of the lower shell and communicated with the first cavity, the periphery of the inner shell is provided with a plurality of inner spray pipes which are circumferentially arrayed around the central axis of the inner shell, and the inner spray pipes are communicated with the second cavity and the; a spoiler is further arranged outside the inner shell. The utility model provides high oxygen content in the waste water and waste water treatment's efficiency.

Description

aerator for industrial wastewater treatment

Technical Field

the utility model relates to a waste water treatment technical field, concretely relates to aerator for industrial waste water treatment.

Background

In the industrial wastewater treatment process, an aerator needs to be arranged in the aeration grit chamber for providing enough dissolved oxygen for wastewater treatment so as to improve the efficiency of wastewater treatment. The butterfly-shaped aerator is commonly used in the prior aeration grit chamber, and is characterized in that air is pressurized and then sent into an inner cavity of the aerator, and simultaneously, wastewater is pumped into the inner cavity of the aerator, so that the air and the wastewater are fully mixed and stirred in the inner cavity of the aerator, and the oxygen content in the wastewater is increased. The traditional butterfly aerator is characterized in that an inner spray pipe of an inner barrel of a through hole sprays waste water to an inner cavity of the aerator, so that the waste water is mixed with air in the inner cavity, however, the mixing effect of the air and the waste water in the inner cavity of the aerator is poor, and the oxygen content in the waste water is difficult to meet the requirement of waste water treatment.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model aims to provide an aerator for industrial wastewater treatment, which can enhance the stirring strength of the inner cavity of the aerator to air and wastewater and improve the oxygen content in the wastewater.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

The aerator for industrial wastewater treatment comprises an upper shell, a lower shell and an inner shell, wherein the top edge of the lower shell is fixedly connected with the top edge of the upper shell, the butt joint of the lower shell and the upper shell is hermetically matched to enable the upper shell and the lower shell to enclose a first chamber, the inner shell is in a cylindrical shape with a closed top end, the bottom of the inner shell is hermetically connected on the lower shell, and a second chamber is formed inside the inner shell; the top of the upper shell is provided with an air inlet communicated with the first cavity, the bottom of the lower shell is provided with a water inlet communicated with the second cavity, the periphery of the upper shell is provided with a plurality of upper spray pipes which are circumferentially arrayed around the central axis of the upper shell and communicated with the first cavity, the periphery of the lower shell is provided with a plurality of lower spray pipes which are circumferentially arrayed around the central axis of the lower shell and communicated with the first cavity, the periphery of the inner shell is provided with a plurality of inner spray pipes which are circumferentially arrayed around the central axis of the inner shell, and the inner spray pipes are communicated with the second cavity and the; a spoiler is further arranged outside the inner shell.

The spoiler extends along a spiral track at the outer periphery of the inner shell, and is positioned between the inner nozzle and the bottom end of the inner shell.

The width of the spoiler is gradually increased from top to bottom.

an upper mounting flange is arranged in the middle of the top end of the upper shell, and an air inlet is formed in the upper mounting flange; the middle part of the bottom end of the lower shell is provided with a lower mounting flange, and a water inlet is formed in the lower mounting flange.

A filter screen fixed on the upper mounting flange is also arranged in the air inlet.

The beneficial effects of the utility model reside in that:

Compared with the prior art, the utility model has the advantages that the spoiler is arranged in the chamber of the aerator, so that the stirring strength of the air and the water in the aerator is enhanced, and the content of oxygen in the wastewater is improved; simultaneously, because all be provided with the spray tube on last casing and the lower casing, can increase the efficiency of aerator drainage, improve waste water treatment's efficiency then.

drawings

Fig. 1 is a schematic structural view of the present invention;

Fig. 2 is a cross-sectional view of the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

As shown in fig. 1 and 2, the aerator for industrial wastewater treatment of the present invention is a butterfly-shaped aerator, which is installed in an aeration grit chamber to increase dissolved oxygen in wastewater; the aerator specifically comprises an upper shell 10, a lower shell 20 and an inner shell 30, wherein the upper shell 10 is fixedly connected with the lower shell 20, specifically, a flange plate is arranged at the bottom edge of the upper shell 10, a flange plate is arranged at the top edge of the lower shell 20, the two flange plates are connected in a penetrating way by using bolts to fix the upper shell 10 and the lower shell 20, and a sealing ring is arranged at the butt joint position of the two flange plates to ensure the sealing property of the joint of the upper shell 10 and the lower shell 20, so that a first chamber is enclosed by the upper shell 10 and the lower shell 20; the inner shell 30 is in a cylinder shape, the top end of the inner shell is in a blind end closed structure, the bottom end part of the inner shell is welded and fixed on the inner surface of the lower shell 20, the central axis of the inner shell 30 is collinear with the central axes of the upper shell 10 and the lower shell 20, and a second chamber is formed inside the inner shell; the top of the upper housing 10 is provided with an air inlet 12, the air inlet 12 is communicated with the first chamber and is used for conveying air into the first chamber, the bottom of the lower housing 20 is provided with a water inlet 22, the water inlet is communicated with the second chamber and is communicated with an output pipeline of the water pump, and thus, the water pump is used for pumping waste water into the second chamber. A plurality of upper nozzles 11 are arranged on the periphery of the upper shell 10, the plurality of upper nozzles 11 are circumferentially arrayed around the central axis of the upper shell 10, similarly, a plurality of lower nozzles 21 are arranged on the periphery of the lower shell 20, the plurality of lower nozzles 21 are circumferentially arrayed around the central axis of the lower shell 20, the upper nozzles 11 and the lower nozzles 21 are both communicated with the first chamber, a plurality of inner nozzles 31 are arranged on the periphery of the inner shell 30, the plurality of inner nozzles 31 are circumferentially arrayed around the central axis of the inner shell 30, and the plurality of inner nozzles 31 communicate the first chamber with the second chamber; further, a spoiler 32 is provided outside the inner housing 30, and the spoiler 32 may extend in a spiral track, which is provided between the inner nozzle 31 and the bottom end portion of the inner housing 30.

Referring to fig. 2, in the operation of the above aerator of the present invention, air enters the first chamber from the air inlet 12 and flows from top to bottom in the first chamber, and the waste water is pumped into the second chamber from the water inlet 22, and then is sprayed into the first chamber under a certain pressure by the plurality of inner nozzles 31, and in the first chamber, the air and the waste water are fully collided, because the air moves from top to bottom, it can stir the waste water in the first chamber to have a downward movement trend, the air and the spoiler are collided many times to fully stir the air-water mixture, and because of the collision with the spoiler, the water molecular group with higher oxygen content is fissured, and the friction generates charges, and adsorbs more oxygen molecules, thereby increasing the oxygen content in the water, after the water and the air are fully mixed in the first chamber, and respectively sprayed into the aeration grit chamber by a plurality of upper spray pipes 11 and lower spray pipes 21.

The spoiler 32 of the present invention is spirally configured, which can make the wastewater generate a tendency of rotation in the first chamber, thereby enhancing the stirring effect; of course, the spoiler 32 may be formed in another shape or the number of spoilers may be increased in order to cause more collisions of the air-water mixture. Of course, in order to better stir the bottom space of the first chamber, the width of the spoiler 32 may be variable, specifically, the width of the spoiler is gradually increased from top to bottom.

The utility model discloses an it has one to go up mounting flange to go up 10 top intermediate position department welding of casing, and air inlet 12 is set up in this goes up mounting flange, and the welding of the bottom intermediate position department of casing 20 has mounting flange down, and the water inlet is set up in mounting flange down. In order to effectively isolate the large granule thing in the air that blows in, the utility model discloses still be provided with filter screen 40 in air inlet 12, filter screen 40 is fixed on last mounting flange for the large granule thing among the filtered air.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still make modifications to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some technical features, and these modifications or substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. The aerator for industrial wastewater treatment is characterized by comprising an upper shell, a lower shell and an inner shell, wherein the top edge of the lower shell is fixedly connected with the top edge of the upper shell, the butt joint of the lower shell and the upper shell is hermetically matched so that the upper shell and the lower shell enclose a first chamber, the inner shell is in a cylindrical shape with a closed top end, the bottom of the inner shell is hermetically connected on the lower shell, and a second chamber is formed inside the inner shell; the top of the upper shell is provided with an air inlet communicated with the first cavity, the bottom of the lower shell is provided with a water inlet communicated with the second cavity, the periphery of the upper shell is provided with a plurality of upper spray pipes which are circumferentially arrayed around the central axis of the upper shell and communicated with the first cavity, the periphery of the lower shell is provided with a plurality of lower spray pipes which are circumferentially arrayed around the central axis of the lower shell and communicated with the first cavity, the periphery of the inner shell is provided with a plurality of inner spray pipes which are circumferentially arrayed around the central axis of the inner shell, and the inner spray pipes are communicated with the second cavity and the; a spoiler is further arranged outside the inner shell.

2. An aerator as claimed in claim 1, wherein the baffle extends along a spiral path around the outer periphery of the inner housing, and the baffle is located between the inner nozzle and the bottom end of the inner housing.

3. The aerator of claim 2, wherein the width of the turbulence plate is gradually increased from top to bottom.

4. An aerator for industrial waste water treatment as claimed in claim 1, wherein the upper mounting flange is provided at the middle of the top end of the upper housing, and the air inlet is provided in the upper mounting flange; the middle part of the bottom end of the lower shell is provided with a lower mounting flange, and a water inlet is formed in the lower mounting flange.

5. An aerator for treatment of industrial waste water as claimed in claim 4, wherein a filter screen fixed to the upper mounting flange is further provided in the air inlet.