CN212833064U

CN212833064U - Nitrifying liquid sludge respective reflux device

Info

Publication number: CN212833064U
Application number: CN202021112650.2U
Authority: CN
Inventors: 赵易斯
Original assignee: Wuxi Zhonghui Intelligent Technology Co ltd
Current assignee: Wuxi Zhonghui Intelligent Technology Co ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2021-03-30
Anticipated expiration: 2030-06-16

Abstract

The utility model relates to a sewage treatment technical field just discloses a nitrify liquid mud reflux unit respectively, be responsible for including current measuring ware, aeration fan, control switch, conveyer pipe, air duct and backward flow, the bottom of current measuring ware can be dismantled with the exit end that the backward flow was responsible for and be connected, the current measuring ware top can be dismantled with the entry end of conveyer pipe and be connected. The nitrifying liquid and sludge respectively flow back, and the quantity of the backflow pipes and the gas guide pipes can be reduced by only arranging one backflow main pipe under the condition that the backflow of the nitrifying liquid and the sludge is not influenced, so that the installation and the disassembly are convenient; and then the nitrifying liquid and the sludge respectively flow back through a flow measuring device arranged on the backflow main pipe and an electromagnetic valve arranged on the conveying pipe, so that the formation of denitrifying bacteria in the anaerobic zone can be reduced, and the quality of effluent water is improved.

Description

Nitrifying liquid sludge respective reflux device

Technical Field

The utility model relates to a sewage treatment technical field specifically is a nitrify liquid mud reflux unit respectively.

Background

In recent years, the phenomenon of water eutrophication in our country is more severe, the country also puts higher requirements on the treatment and discharge of effluent from small-sized village and town sewage treatment plants, and the A2/O process is a relatively common process in integrated sewage treatment equipment. In the A2/O process, two parts of nitrification liquid reflux and sludge reflux are particularly important, and the current nitrification liquid and sludge reflux generally comprises two modes: one is to adopt two sets of systems of nitrifying liquid reflux and sludge reflux to respectively reflux the nitrifying liquid and the sludge, and the pipeline design is relatively complex; the other method is that the sludge-water mixed liquid of the sludge and the nitrifying liquid is directly refluxed to the anaerobic zone, the reflux of the nitrifying liquid can cause the growth of denitrifying bacteria in the anaerobic zone, the denitrifying bacteria perform denitrification and compete organic matters with the phosphorus-accumulating bacteria, and phosphorus accumulation by the phosphorus-accumulating bacteria can be inhibited, so that the biochemical function of the anaerobic zone is hindered, and the effluent quality of equipment is influenced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The not enough to prior art, the utility model provides a nitrify liquid mud reflux unit respectively has solved the simple nitrify liquid mud reflux unit among the prior art who provides among the above-mentioned background art and can lead to appearing inhibiting in the anaerobic zone and gathering phosphorus bacteria and put the problem that phosphorus influences equipment play water quality of water.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a nitrifying liquid sludge respective reflux device comprises a flow detector, an aeration fan, a control switch, a conveying pipe, an air guide pipe and a reflux main pipe, wherein the bottom of the flow detector is detachably connected with the outlet end of the reflux main pipe, and the top of the flow detector is detachably connected with the inlet end of the conveying pipe; one end of the conveying pipe, which is far away from the flow meter, penetrates through the aerobic zone and the anaerobic zone and extends into the anoxic zone, a sludge outlet end of the conveying pipe is fixedly communicated with the anaerobic zone, a nitrifying liquid outlet end of the conveying pipe is fixedly communicated with the anoxic zone, a first electromagnetic valve for intercepting nitrifying liquid is arranged on the conveying pipe, and a second electromagnetic valve for intercepting sludge is arranged on the conveying pipe; an air inlet is formed in one side face of the bottom of the backflow main pipe, the air inlet is detachably connected with the outlet end of the air guide pipe, and the inlet end, far away from the backflow main pipe, of the air guide pipe is fixedly connected with the output port of the aeration fan.

Furthermore, the bottom of the flow meter is detachably and fixedly communicated with the outlet end of the backflow main pipe, the top of the flow meter is detachably and fixedly communicated with the inlet end of the conveying pipe, and the air inlet of the backflow main pipe is detachably and fixedly communicated with the outlet end of the air guide pipe.

Furthermore, the input ends of the flow measuring device, the aeration fan, the first electromagnetic valve and the second electromagnetic valve are electrically connected with the output end of the control switch.

Furthermore, the backflow main pipe is vertically and fixedly installed inside the settling zone, the inlet end of the backflow main pipe extends into the settled sludge, the flow measuring device is located above the nitrification liquid level, the distance between the inlet end of the backflow main pipe and the inner bottom wall of the settling zone is 0.3-0.5m, and the aeration fan and the control switch can be fixedly installed on the outer wall of the settling zone.

Further, the conveyer pipe includes first L shape pipe, second L shape pipe and third L shape pipe, the entry end and the current meter top of first L shape pipe can be dismantled fixed intercommunication, the exit end of first L shape pipe can be dismantled fixed intercommunication with the entry end of second L shape pipe, the first exit end of second L shape pipe is vertical decurrent sludge outlet end, the second exit end of second L shape pipe is the connection port of carrying the nitration liquid, this connection port can be dismantled fixed intercommunication with the entry end of third L shape pipe, and the exit end of third L shape pipe is vertical decurrent nitration liquid exit end, and first solenoid valve sets up the entry end at third L shape pipe, and the second solenoid valve sets up on the sludge outlet end of second L shape pipe.

(III) advantageous effects

The utility model provides a, possess following beneficial effect:

(1) the nitrification liquid sludge respectively reflux device is only provided with one reflux main pipe, so that the number of reflux pipes and air guide pipes can be reduced under the condition of not influencing the reflux of nitrification liquid and sludge, and the installation and the disassembly are convenient; and then the nitrifying liquid and the sludge respectively flow back through a flow measuring device arranged on the backflow main pipe and an electromagnetic valve arranged on the conveying pipe, so that the formation of denitrifying bacteria in the anaerobic zone can be reduced, and the quality of effluent water is improved.

(2) The nitrifying liquid sludge respectively reflux device replaces a reflux pump to operate by arranging the aeration fan and the air guide pipe of the air stripping reflux device, and reduces the electric energy consumption.

Drawings

FIG. 1 is a schematic structural view of the nitrifying liquid sludge respective reflux device of the present invention;

FIG. 2 is a schematic diagram of the embodiment of the device for separately returning nitrified liquid and sludge of the present invention;

in the figure: the device comprises a flow measurer 1, a reflux main pipe 2, an air duct 3, an aeration fan 4, a conveying pipe 5, a first L-shaped conduit 51, a second L-shaped conduit 52, a third L-shaped conduit 53, a nitrifying liquid outlet end 531, a sludge outlet end 521, a first electromagnetic valve 6, a second electromagnetic valve 7, an anaerobic zone 9, an anoxic zone 10, a control switch 11, a settling zone 12 and an aerobic zone 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, the present invention provides a technical solution:

a nitrifying liquid sludge respective reflux device comprises a flow detector 1, an aeration fan 4, a control switch 11, a conveying pipe 5, an air guide pipe 3 and a reflux main pipe 2, wherein the bottom of the flow detector 1 is detachably connected with the outlet end of the reflux main pipe 2, and the top of the flow detector 1 is detachably connected with the inlet end of the conveying pipe 5; one end of the conveying pipe 5, which is far away from the current measurer 1, penetrates through the aerobic zone 13 and the anaerobic zone 9 and extends into the anoxic zone 10, a sludge outlet end 521 of the conveying pipe 5 is fixedly communicated with the anaerobic zone 9, a nitrifying liquid outlet end 531 of the conveying pipe 5 is fixedly communicated with the anoxic zone 10, a first electromagnetic valve 6 for intercepting nitrifying liquid is arranged on the conveying pipe 5, a second electromagnetic valve 7 for intercepting sludge is arranged on the conveying pipe 5, and the nitrifying liquid and the sludge respectively flow back through the current measurer arranged on the backflow main pipe and the electromagnetic valves arranged on the conveying pipe, so that denitrifying bacteria in the anaerobic zone can be reduced, and the quality of effluent water can be improved; an air inlet is arranged on one side surface of the bottom of the backflow main pipe 2, the air inlet is detachably connected with the outlet end of the air guide pipe 3, and the inlet end of the air guide pipe 3, which is far away from the backflow main pipe 2, is fixedly connected with the outlet of the aeration fan 4. An aeration fan 4 and an air duct 3 of the air stripping reflux device are arranged to replace a reflux pump to operate, so that the electric energy consumption is reduced. The bottom of the flow meter 1 and the outlet end of the backflow main pipe 2 can be detached and fixedly communicated, the top of the flow meter 1 and the inlet end of the conveying pipe 5 can be detached and fixedly communicated, and the air inlet of the backflow main pipe 2 and the outlet end of the air guide pipe 3 can be detached and fixedly communicated. The input ends of the current measuring device 1, the aeration fan 4, the first electromagnetic valve 6 and the second electromagnetic valve 7 are all electrically connected with the output end of the control switch 11. The backflow main pipe 2 is vertically and fixedly installed inside the settling zone 12, the inlet end of the backflow main pipe 2 extends into the settled sludge, the flow measuring device 1 is located above the nitrification liquid level, the distance between the inlet end of the backflow main pipe 2 and the inner bottom wall of the settling zone 12 is 0.2-0.5m, and the aeration fan 4 and the control switch 11 can be fixedly installed on the outer wall of the settling zone 12. The conveying pipe 5 comprises a first L-shaped guide pipe 51, a second L-shaped guide pipe 52 and a third L-shaped guide pipe 53, the inlet end of the first L-shaped guide pipe 51 is detachably and fixedly communicated with the top of the current measuring device 1, the outlet end of the first L-shaped guide pipe 51 is detachably and fixedly communicated with the inlet end of the second L-shaped guide pipe 52, the first outlet end of the second L-shaped guide pipe 52 is a sludge outlet end 521 facing vertically downwards, the second outlet end of the second L-shaped guide pipe 52 is a connecting port for conveying nitrified liquid, the connecting port is detachably and fixedly communicated with the inlet end of the third L-shaped guide pipe 53, the outlet end of the third L-shaped guide pipe 53 is a nitrified liquid outlet end 531 facing vertically downwards, a first electromagnetic valve 6 is arranged at the inlet end of the third L-shaped guide pipe 53, a second electromagnetic valve 7 is arranged on the sludge outlet end 521 of the second L-shaped guide pipe 52, only one backflow main pipe is arranged, and, the quantity of the backflow pipes and the air guide pipes 3 can be reduced, and the installation and the disassembly are convenient.

The working principle is that when the device is used, the aeration fan 4 and the speed measurer 1 are turned on through the control switch 11, the aeration fan 4 inputs gas into the backflow main pipe 2 through the gas guide pipe 3, muddy water or nitrified liquid and air in the backflow main pipe 2 form a mixed liquid with the density smaller than that of water, the mixed liquid starts to flow back through the backflow main pipe, then the speed measurer 1 is used for measuring the flow rate of the nitrified liquid, then the control switch 11 sets the flow rate value, as the sludge flow rate is smaller than the nitrified liquid flow rate, when the speed measurer senses that the flow rate in the backflow main pipe 2 is smaller than a fixed value, data are fed back to a main controller in the control switch 11, and the main controller turns off the first electromagnetic valve 6 through the; when the velometer senses that the flow rate in the reflux main pipe 2 is greater than a fixed value, data are fed back to a main controller in the control switch 11, and the main controller opens the first electromagnetic valve 6 through the control switch 11 to close the second electromagnetic valve 7, so that the reflux of the nitrified liquid is realized. The electrical components appearing therein are all electrically connected with a master controller in the control switch 11, the external power supply can be 220V commercial power, and the master controller can be a conventional known device for controlling a computer and the like.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; or indirectly through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A nitrifying liquid sludge respective reflux device comprises a flow meter (1), an aeration fan (4), a control switch (11), a conveying pipe (5), an air guide pipe (3) and a reflux main pipe (2), and is characterized in that the bottom of the flow meter (1) is detachably connected with the outlet end of the reflux main pipe (2), and the top of the flow meter (1) is detachably connected with the inlet end of the conveying pipe (5);

one end, far away from the flow meter (1), of the conveying pipe (5) penetrates through the aerobic zone (13) and the anaerobic zone (9) and extends into the anoxic zone (10), a sludge outlet end (521) of the conveying pipe (5) is fixedly communicated with the anaerobic zone (9), a nitrifying liquid outlet end (531) of the conveying pipe (5) is fixedly communicated with the anoxic zone (10), a first electromagnetic valve (6) used for intercepting nitrifying liquid is arranged on the conveying pipe (5), and a second electromagnetic valve (7) used for intercepting sludge is arranged on the conveying pipe (5);

an air inlet is formed in one side face of the bottom of the backflow main pipe (2), the air inlet is detachably connected with the outlet end of the air guide pipe (3), and the inlet end, far away from the backflow main pipe (2), of the air guide pipe (3) is fixedly connected with the outlet of the aeration fan (4).

2. The device for separately refluxing nitrified liquid and sludge according to claim 1, wherein the bottom of the flow meter (1) is detachably and fixedly communicated with the outlet end of the main reflux pipe (2), the top of the flow meter (1) is detachably and fixedly communicated with the inlet end of the conveying pipe (5), and the air inlet of the main reflux pipe (2) is detachably and fixedly communicated with the outlet end of the air guide pipe (3).

3. The device for separately refluxing nitrified liquid sludge according to claim 1, wherein the input ends of the flow meter (1), the aeration fan (4), the first electromagnetic valve (6) and the second electromagnetic valve (7) are electrically connected with the output end of the control switch (11).

4. The device for separately refluxing nitrified liquid sludge according to claim 1, wherein the main reflux pipe (2) is vertically and fixedly installed inside the settling zone (12), the inlet end of the main reflux pipe (2) is deep into the settled sludge, the flow detector (1) is located above the nitrifying liquid level, the distance between the inlet end of the main reflux pipe (2) and the inner bottom wall of the settling zone (12) is 0.2-0.5m, and the aeration fan (4) and the control switch (11) are fixedly installed on the outer wall of the settling zone (12).

5. The nitrified liquid sludge separate backflow device according to claim 1, wherein the conveying pipe (5) comprises a first L-shaped conduit (51), a second L-shaped conduit (52) and a third L-shaped conduit (53), the inlet end of the first L-shaped conduit (51) is detachably and fixedly communicated with the top of the flow measurer (1), the outlet end of the first L-shaped conduit (51) is detachably and fixedly communicated with the inlet end of the second L-shaped conduit (52), the first outlet end of the second L-shaped conduit (52) is a sludge outlet end (521) facing vertically downwards, the second outlet end of the second L-shaped conduit (52) is a connecting port for conveying nitrified liquid, the connecting port is detachably and fixedly communicated with the inlet end of the third L-shaped conduit (53), the outlet end of the third L-shaped conduit (53) is a nitrified liquid outlet end (531) facing vertically downwards, the first electromagnetic valve (6) is arranged at the inlet end of the third L-shaped conduit (53), the second electromagnetic valve (7) is arranged on the sludge outlet end (521) of the second L-shaped conduit (52).