CN115253387B - Ammonia blowing cabinet and ammonia blowing method - Google Patents
Ammonia blowing cabinet and ammonia blowing method Download PDFInfo
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- CN115253387B CN115253387B CN202210970097.3A CN202210970097A CN115253387B CN 115253387 B CN115253387 B CN 115253387B CN 202210970097 A CN202210970097 A CN 202210970097A CN 115253387 B CN115253387 B CN 115253387B
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- ammonia
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 134
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000007664 blowing Methods 0.000 title description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000005273 aeration Methods 0.000 claims abstract description 31
- 239000007789 gas Substances 0.000 claims abstract description 29
- 239000003513 alkali Substances 0.000 claims abstract description 24
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 239000003814 drug Substances 0.000 abstract description 7
- 239000000945 filler Substances 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 17
- 238000013461 design Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0042—Degasification of liquids modifying the liquid flow
Abstract
The invention provides an ammonia stripping cabinet and an ammonia stripping method, wherein the ammonia stripping cabinet comprises a cabinet body, an alkali liquor container and an aeration device, the cabinet body is of an asymmetric square structure, a containing cavity is formed in the cabinet body, ammonia nitrogen solution to be treated is contained in the containing cavity, the cabinet body is provided with a water inlet, a water outlet and a gas outlet which are communicated with the containing cavity, the water inlet and the water outlet are arranged on two opposite sides of the bottom of the cabinet body, and the gas outlet is arranged at the top of the cabinet body; the alkali liquor container is internally provided with alkali liquor and is communicated with the cabinet body through a medicine adding pipeline; the aeration device is arranged at the bottom of the accommodating cavity and communicated with the outside air, and is used for aerating the solution in the accommodating cavity. The ammonia stripping tower adopts the structural arrangement of the ammonia stripping cabinet, can effectively solve the problems of high power consumption, low stripping efficiency, high investment, hardening of filler for a long time and high maintenance hazard degree of the existing ammonia stripping tower, is convenient to operate, has low power consumption, can reach more than 80 percent and has higher stripping efficiency than the ammonia stripping tower.
Description
Technical Field
The invention belongs to the technical field of ammonia blowing, and particularly relates to an ammonia blowing cabinet and an ammonia blowing method.
Background
The basic principle of ammonia stripping is to utilize the volatility of ammonia nitrogen and the like contained in the solutionThe difference between the actual concentration and the equilibrium concentration of the substance is that air is used for stripping under alkaline condition, and the ammonia concentration in the gas phase is changed due to the continuous gas discharge in the stripping process, so that the actual concentration is always smaller than the equilibrium concentration under the condition, and finally the ammonia dissolved in the solution continuously passes through the gas-liquid interface, so that ammonia nitrogen (NH 3 -N) is removed. At present, most of ammonia stripping devices adopt cylindrical ammonia stripping towers, the height-diameter ratio of the towers is 6:1-8:1, the process is mature, the operation is simple, the stripping efficiency can reach 60-70% in a single stage, however, the power consumption of the ammonia stripping towers is larger, the stripping efficiency is still to be further improved, the investment is larger, the equipment is too high, the filler is hardened for a long time, and the overhaul hazard degree is high.
Accordingly, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The invention aims to provide an ammonia stripping cabinet and an ammonia stripping method, which are used for solving the problems of high power consumption, low stripping efficiency, large investment, hardening of filler for a long time and high overhaul hazard degree of the existing ammonia stripping tower.
In order to achieve the above object, the present invention provides the following technical solutions:
an ammonia stripping tank, the ammonia stripping tank comprising:
the cabinet body is of an asymmetric square structure, an accommodating cavity is formed in the cabinet body, ammonia nitrogen solution to be treated is accommodated in the accommodating cavity, a water inlet, a water outlet and a gas outlet which are communicated with the accommodating cavity are formed in the cabinet body, the water inlet and the water outlet are formed in two opposite sides of the bottom of the cabinet body, and the gas outlet is formed in the top of the cabinet body;
the alkali liquor container is internally provided with alkali liquor, and is communicated with the cabinet body through a dosing pipeline;
the aeration device is arranged at the bottom of the accommodating cavity and communicated with the outside air, and is used for aerating the solution in the accommodating cavity.
Optionally, the cabinet body is of an asymmetric square structure with high left and low right, and the left side height is 1.5-2 times of the right side height; the gas outlet is arranged at the top of the left side of the cabinet body.
Optionally, the water outlet is connected with a water outlet pipe, the water outlet end of the water outlet pipe is higher than the water outlet, the depth of the ammonia nitrogen solution is the same as the water outlet end of the water outlet pipe, and the depth of the ammonia nitrogen solution is not less than 2/3 of the right side height of the cabinet body.
Optionally, the water inlet is connected with a water inlet pipe, the water inlet pipe is provided with a first dosing port, and the bottom of the cabinet body is also provided with a second dosing port and a third dosing port at intervals;
the dosing pipeline comprises a first dosing pipeline, a second dosing pipeline and a third dosing pipeline;
the alkali liquor container is connected with a liquid outlet pipe, a four-way valve is arranged on the liquid outlet pipe, a first outlet is connected with the first dosing port through a first dosing pipe, a second outlet is connected with the second dosing port through a second dosing pipe, a third outlet is connected with the third dosing port through a third dosing pipe, and a metering pump is arranged on each dosing pipe.
Optionally, a first inserting port and a second inserting port are further formed in the bottom of the cabinet body, the first inserting port is located between the water inlet and the second medicine adding port, the second inserting port is located between the second medicine adding port and the third medicine adding port, and the water outlet pipe is provided with a third inserting port;
the ammonia stripping cabinet further comprises a first pH meter, a second pH meter and a third pH meter, wherein the first pH meter, the second pH meter and the third pH meter are respectively inserted and fixed in the first inserting port, the second inserting port and the third inserting port and are used for detecting the pH value of the solution at the corresponding position.
Optionally, the ammonia stripping cabinet further comprises a PLC controller, and the first pH meter, the second pH meter, the third pH meter, the four-way valve and the metering pump on each dosing pipeline are electrically connected to the PLC controller through wires.
Optionally, the aeration device comprises a fan, a plurality of aeration heads and a plurality of air inlet pipes, wherein an inlet of the fan is communicated with the outside air, a plurality of aeration heads are arranged at intervals at the bottom of the accommodating cavity, and a plurality of air inlet pipes are correspondingly connected with a plurality of aeration heads and are connected with an outlet of the fan.
The invention also provides an ammonia stripping method, which adopts the ammonia stripping cabinet, and comprises the following steps:
firstly, respectively conveying ammonia nitrogen solution and alkali liquor into a containing cavity of a cabinet body through a water inlet and a dosing pipeline, and simultaneously starting an aeration device;
and step two, detecting the pH value of the solution at different positions in the cabinet body, and controlling a dosing pipeline switch and dosing frequency according to the detected pH value.
Optionally, in the first step, the gas-liquid ratio is controlled to be 800:1-1000:1.
Optionally, the second step specifically comprises:
when the indication number of the first pH meter is smaller than 11, a metering pump on the first dosing pipeline is opened, the four-way valve correspondingly opens the first dosing pipeline, and dosing frequency is increased until the indication number of the first pH meter is not smaller than 11;
when the indication number of the second pH meter is smaller than 10, a metering pump on the second dosing pipeline is opened, the four-way valve correspondingly opens the second dosing pipeline, and dosing frequency is increased until the indication number of the second pH meter is not smaller than 10;
when the indication number of the third pH meter is smaller than 9, a metering pump on the third dosing pipeline is opened, the four-way valve correspondingly opens the third dosing pipeline, and dosing frequency is increased until the indication number of the third pH meter is between 8.5 and 9.
The beneficial effects are that:
the ammonia stripping cabinet comprises a cabinet body, an alkali liquor container and an aeration device, wherein the cabinet body is of an asymmetric square structure, a containing cavity is formed in the cabinet body, ammonia nitrogen solution to be treated is contained in the containing cavity, the cabinet body is provided with a water inlet, a water outlet and a gas outlet which are communicated with the containing cavity, the water inlet and the water outlet are arranged on two opposite sides of the bottom of the cabinet body, and the gas outlet is arranged at the top of the cabinet body; the alkali liquor container is internally provided with alkali liquor and is communicated with the cabinet body through a medicine adding pipeline; the aeration device is arranged at the bottom of the accommodating cavity and communicated with the outside air, and is used for aerating the solution in the accommodating cavity. The ammonia stripping cabinet is arranged in a structure, so that the problems of high power consumption, low stripping efficiency, high investment, hardening of filler for a long time and high maintenance danger degree of the existing ammonia stripping tower can be effectively solved, and when the ammonia stripping cabinet is adopted for ammonia stripping operation, the operation is more convenient, the power consumption is lower, the stripping efficiency can reach more than 80 percent, and the stripping efficiency is higher than that of the ammonia stripping tower.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. Wherein:
FIG. 1 is a schematic structural view of an ammonia stripping cabinet of the present invention.
Reference numerals in the drawings: 1-a cabinet body; 11-a water inlet pipe; 12-a water outlet pipe; 13-an air outlet pipe; 2-an aeration head; 21-an air inlet pipe; 3-a fan; 31-a fan switch valve; 4-an alkali liquor container; 41-a first dosing line; 41 a-a first metering pump; 42-a second dosing tube; 42 a-a second metering pump; 43-a third dosing tube; 43 a-a third metering pump; 44-a four-way valve; a 5-PLC controller; 51-a first pH meter; 52-a second pH meter; and 53 third pH meter.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
The present invention will be described in detail with reference to examples. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention provides an ammonia stripping cabinet, which adopts the structural arrangement of the ammonia stripping cabinet, can effectively solve the problems of high power consumption, low stripping efficiency, large investment, hardening of filler for a long time and high maintenance hazard degree of the existing ammonia stripping tower, and has the advantages of more convenient operation, less power consumption, more than 80 percent of stripping efficiency and higher stripping efficiency than the ammonia stripping tower when the ammonia stripping cabinet is adopted for ammonia stripping operation.
As shown in fig. 1, the ammonia stripping cabinet of the invention comprises a cabinet body 1, an alkali liquor container 4 and an aeration device, wherein the cabinet body 1 is of an asymmetric square structure, a containing cavity is formed in the cabinet body, ammonia nitrogen solution to be treated is contained in the containing cavity, the cabinet body 1 is provided with a water inlet, a water outlet and a gas outlet which are communicated with the containing cavity, the water inlet and the water outlet are arranged on two opposite sides of the bottom of the cabinet body 1, and the gas outlet is arranged on the top of the cabinet body 1, wherein the water inlet is used for conveying the ammonia nitrogen solution to be treated into the cabinet body 1; the alkali liquor container 4 is internally provided with alkali liquor, the alkali liquor container 4 is communicated with the cabinet body 1 through a dosing pipeline, and the alkali liquor can be conveyed into the cabinet body 1 through the dosing pipeline; the aeration device is arranged at the bottom of the accommodating cavity and communicated with the outside air, and is used for aerating the solution in the accommodating cavity.
It should be noted that, the lye container may be a lye tank, a lye bucket, etc., the lye may be a 30% sodium hydroxide solution, the gas outlet may be connected with a gas outlet pipe 13, and the gas outlet pipe 13 is connected to a gas absorbing device, so as to be used for absorbing the gas released by blowing off, so as to avoid the pollution of the gas to the outside air. The structural arrangement of the gas absorbing device is not limited herein, and the conventional ammonia absorbing device is adopted.
The working principle of the ammonia stripping cabinet of the invention is as follows: when ammonia nitrogen solution in the cabinet body 1 is mixed with alkali liquor (such as sodium hydroxide), a large amount of ammonia can be generated immediately, the mixture of ammonia and air can leave the solution rapidly under the aeration (air) stripping of the aeration device, and finally the ammonia nitrogen solution is discharged from a gas outlet at the top of the cabinet body 1, so that the rapid stripping of the ammonia nitrogen solution can be realized. The arrows in fig. 1 indicate the gas flow direction.
In the embodiment of the invention, the cabinet body 1 is of an asymmetric square structure with high left and low right, and the left side height is 1.5-2 times (such as 1.5 times, 1.6 times, 1.7 times, 1.8 times, 1.9 times, 2 times and interval values between any two end values) of the right side height; the gas outlet is arranged at the top of the left side of the cabinet body 1, and the gas blown off in the cabinet body 1 can be discharged from the gas outlet more fully and effectively through the structural design. It should be noted that, the water inlet is located at the left bottom of the cabinet body 1, and the water outlet is located at the right bottom of the cabinet body 1.
In the embodiment of the invention, the water outlet is connected with the water outlet pipe 12, the water outlet end of the water outlet pipe 12 is higher than the water outlet, the depth of the ammonia nitrogen solution is the same as the water outlet end of the water outlet pipe 12, and the depth of the ammonia nitrogen solution is not less than 2/3 of the right side height of the cabinet body 1. That is, the water outlet pipe 12 is lifted to a certain height from the bottom of the cabinet body 1, and the lifting height is the same as the depth of the ammonia nitrogen solution in the cabinet body 1. The arrangement of such structure can ensure that ammonia nitrogen solution in the cabinet body 1 is sufficiently and effectively blown off to avoid the phenomenon of short flow, and simultaneously ensure that ammonia molecules exist in the solution for a long time.
Optionally, the depth of the ammonia nitrogen solution is 500mm, and the height of the water outlet end of the water outlet pipe 12 is 500mm.
In the specific embodiment of the invention, the water inlet is connected with the water inlet pipe 11, the water inlet pipe 11 is provided with a first dosing port, and the bottom of the cabinet body 1 is also provided with a second dosing port and a third dosing port at intervals; the dosing channels include a first dosing channel 41, a second dosing channel 42 and a third dosing channel 43; the alkali liquor container 4 is connected with the drain pipe, is provided with four-way valve 44 on the drain pipe, in the three export of four-way valve 44, first export is connected in first charge mouth through first charge pipe, and the second export is connected in second charge mouth through second charge pipe, and the third export is connected in third charge mouth through third charge pipe, all is provided with the measuring pump on each dosing pipeline, is provided with first measuring pump 41a on the first dosing pipeline 41 promptly, is provided with second measuring pump 42a on the second dosing pipeline 42, is provided with third measuring pump 43a on the third dosing pipeline 43. By means of the design, dosing of ammonia nitrogen solution in the cabinet body 1 through the three dosing pipelines can be achieved, and independent dosing operation can be conducted between the dosing pipelines.
Preferably, the second and third dosing openings are uniformly distributed at the bottom of the cabinet 1 to perform the dosing operation more sufficiently and uniformly.
In this embodiment, the four-way valve 44 is provided to realize independent dosing operation of three dosing pipelines, and of course, in other embodiments, corresponding control valves may be respectively provided on the three dosing pipelines to realize independent dosing operation thereof.
Further, the bottom of the cabinet body 1 is also provided with a first inserting port and a second inserting port, the first inserting port is positioned between the water inlet and the second medicine adding port, and preferably, the first inserting port is arranged close to the second medicine adding port; the second insertion port is positioned between the second dosing port and the third dosing port, and preferably, the second insertion port is positioned close to the third dosing port; the water outlet pipe 12 is provided with a third inserting port; the ammonia stripping cabinet further comprises a first pH meter 51, a second pH meter 52 and a third pH meter 53 which are respectively inserted and fixed in the first insertion opening, the second insertion opening and the third insertion opening and used for detecting the pH value of the solution at the corresponding positions.
Further, the ammonia stripping cabinet further comprises a PLC controller 5, and the first pH meter 51, the second pH meter 52, the third pH meter 53, the four-way valve 44 and the metering pump on each dosing pipeline are electrically connected to the PLC controller 5 through wires. By such design, the PLC controller 5 can automatically acquire the readings of the first pH meter 51, the second pH meter 52 and the third pH meter 53, and automatically control the switching operation of the four-way valve 44 and the metering pump on each dosing pipeline, thereby realizing automatic control.
In the specific embodiment of the invention, the aeration device comprises a fan 3, a plurality of aeration heads 2 and a plurality of air inlet pipes 21, wherein the inlet of the fan 3 is communicated with the outside air, the plurality of aeration heads 2 are arranged at the bottom of the accommodating cavity at intervals, and the plurality of air inlet pipes 21 are correspondingly connected with the plurality of aeration heads 2 and are connected with the outlet of the fan 3.
Specifically, as shown in fig. 1, the inlet of the fan 3 is communicated with the outside air through a pipe, and a fan switch valve 31 is arranged on the pipe for controlling the circulation or non-circulation of the pipe. Optionally, the fan switch valve 31 is electrically connected to the PLC controller 5 through a wire to implement an automatic control operation. The aeration heads 2 and the corresponding air inlet pipes 21 are arranged in parallel and are connected to the outlet of the fan 3 through a main pipeline. The aeration head 2 of the embodiment adopts a rubber membrane corundum aeration head 2.
The invention also provides an ammonia stripping method, which adopts the ammonia stripping cabinet, and comprises the following steps:
step one, ammonia nitrogen solution and alkali liquor are respectively conveyed into the accommodating cavity of the cabinet body 1 through the water inlet and the dosing pipeline, and meanwhile, the aeration device is started. Specifically, ammonia nitrogen solution and alkali liquor are respectively conveyed into the accommodating cavity of the cabinet body 1 through the water inlet pipe 11 and the three dosing pipelines, meanwhile, the fan control valve 31 is opened and communicated with the outside air, and the fan 3 is opened, so that aeration operation can be performed on the solution in the accommodating cavity of the cabinet body 1 through the fan 3, the air inlet pipe 21 and the aeration head 2.
In the first embodiment of the present invention, the gas-liquid ratio is controlled to be 800:1-1000:1 (e.g. 800:1, 850:1, 900:1, 950:1, 1000:1 and the interval value between any two end points).
And step two, detecting the pH values of the solutions at different positions in the cabinet body 1 (namely, the indication numbers of different pH meters), and controlling the switch of the dosing pipeline and the dosing frequency according to the detected pH values.
The second step is specifically as follows: when the indication number of the first pH meter 51 is smaller than 11, a metering pump (i.e., a first metering pump 41 a) on the first dosing pipeline 41 is opened, and the four-way valve 44 correspondingly opens the first dosing pipeline 41, i.e., the first dosing pipeline 41 is conducted, and simultaneously blocks the circulation of the second dosing pipeline 42 and the third dosing pipeline 43, and increases the dosing frequency, and the dosing frequency is increased by 0.5Hz; until the indication of the first pH meter 51 is not less than 11;
when the indication number of the second pH meter 52 is smaller than 10, the metering pump (i.e., the second metering pump 42 a) on the second dosing pipeline 42 is opened, and the four-way valve 44 correspondingly opens the second dosing pipeline 42, i.e., the second dosing pipeline 42 is conducted, and simultaneously blocks the circulation of the first dosing pipeline 41 and the third dosing pipeline 43, and increases the dosing frequency, and the dosing frequency is increased by 0.5Hz; until the indication of the second pH meter 52 is not less than 10;
when the indication number of the third pH meter 53 is smaller than 9, the metering pump (i.e., the third metering pump 43 a) on the third dosing pipeline 43 is turned on, and the four-way valve 44 correspondingly opens the third dosing pipeline 43, i.e., the third dosing pipeline 43 is conducted, and simultaneously blocks the circulation of the first dosing pipeline 41 and the second dosing pipeline 42, and increases the dosing frequency, and the dosing frequency is increased by 0.5Hz; until the indication of the third pH meter 53 is between 8.5 and 9;
according to the sequence, detection and adjustment are performed once every 10-12min (such as 10min, 11min, 12min and interval value between any two end values).
By such a design, the maximum blow-off efficiency can be maintained. When the ammonia nitrogen concentration of the outlet section is very low, the mixed gas of air and ammonia nitrogen is opposite to the water flow direction, and is mixed with the gas with relatively high ammonia nitrogen concentration on the surface of the solution at the left side, so that the ammonia nitrogen concentration is reduced, the ammonia nitrogen of the solution at the lower part of the outlet section can be conveniently sent out according to the henry theorem, the overflow of the ammonia nitrogen of the solution is accelerated by the gas flow of the whole cabinet body 1, and the ammonia nitrogen is easier to overflow by supplementing sodium hydroxide with a proper amount at the moment.
In the specific embodiment of the invention, the ammonia stripping cabinet is adopted to carry out ammonia stripping pilot test, the concentration of ammonia nitrogen in inlet water is 13600mg/L, the gas-liquid ratio is 1000:1, the indication number of the third pH meter 53 at the outlet is 8.5-9, the temperature is 18 ℃, and the stripping efficiency is 82.5%.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. An ammonia stripping cabinet, characterized in that the ammonia stripping cabinet comprises:
the cabinet body is of an asymmetric square structure, an accommodating cavity is formed in the cabinet body, ammonia nitrogen solution to be treated is accommodated in the accommodating cavity, a water inlet, a water outlet and a gas outlet which are communicated with the accommodating cavity are formed in the cabinet body, the water inlet and the water outlet are formed in two opposite sides of the bottom of the cabinet body, and the gas outlet is formed in the top of the cabinet body;
the alkali liquor container is internally provided with alkali liquor, and is communicated with the cabinet body through a dosing pipeline;
the aeration device is arranged at the bottom of the accommodating cavity and communicated with the outside air, and is used for aerating the solution in the accommodating cavity;
the cabinet body is of an asymmetric square structure with high left and low right, and the left side height is 1.5-2 times of the right side height;
the gas outlet is arranged at the top of the left side of the cabinet body, the water inlet is arranged at the bottom of the left side of the cabinet body, and the water outlet is arranged at the bottom of the right side of the cabinet body.
2. The ammonia stripping cabinet according to claim 1, wherein the water outlet is connected with a water outlet pipe, the water outlet end of the water outlet pipe is higher than the water outlet, the depth of the ammonia nitrogen solution is the same as the water outlet end of the water outlet pipe, and the depth of the ammonia nitrogen solution is not less than 2/3 of the right side height of the cabinet body.
3. The ammonia stripping cabinet according to claim 2, wherein the water inlet is connected with a water inlet pipe, the water inlet pipe is provided with a first dosing port, and the bottom of the cabinet body is also provided with a second dosing port and a third dosing port at intervals;
the dosing pipeline comprises a first dosing pipeline, a second dosing pipeline and a third dosing pipeline;
the alkali liquor container is connected with a liquid outlet pipe, a four-way valve is arranged on the liquid outlet pipe, a first outlet is connected with the first dosing port through a first dosing pipe, a second outlet is connected with the second dosing port through a second dosing pipe, a third outlet is connected with the third dosing port through a third dosing pipe, and a metering pump is arranged on each dosing pipe.
4. The ammonia stripping cabinet according to claim 3, characterized in that the bottom of the cabinet body is also provided with a first insertion opening and a second insertion opening, the first insertion opening is positioned between the water inlet and the second dosing opening, the second insertion opening is positioned between the second dosing opening and the third dosing opening, and the water outlet pipe is provided with a third insertion opening;
the ammonia stripping cabinet further comprises a first pH meter, a second pH meter and a third pH meter, wherein the first pH meter, the second pH meter and the third pH meter are respectively inserted and fixed in the first inserting port, the second inserting port and the third inserting port and are used for detecting the pH value of the solution at the corresponding position.
5. The ammonia stripping tank as recited in claim 4, further comprising a PLC controller, wherein the first pH meter, the second pH meter, the third pH meter, the four-way valve, and the metering pump on each dosing tube are electrically connected to the PLC controller by wires.
6. The ammonia stripping tank as recited in any one of claims 1-5, wherein the aeration device comprises a fan, a plurality of aeration heads and a plurality of air inlet pipes, the inlet of the fan is communicated with the outside air, the plurality of aeration heads are arranged at the bottom of the accommodating cavity at intervals, and the plurality of air inlet pipes are correspondingly connected with the plurality of aeration heads and are connected with the outlets of the fan.
7. An ammonia stripping method using an ammonia stripping cabinet according to any one of claims 1-6, characterized in that the ammonia stripping method comprises the steps of:
firstly, respectively conveying ammonia nitrogen solution and alkali liquor into a containing cavity of a cabinet body through a water inlet and a dosing pipeline, and simultaneously starting an aeration device;
and step two, detecting the pH value of the solution at different positions in the cabinet body, and controlling a dosing pipeline switch and dosing frequency according to the detected pH value.
8. The ammonia stripping method according to claim 7, characterized in that in the first step, the gas-liquid ratio is controlled to be 800:1-1000:1.
9. The ammonia stripping method as defined in claim 7, wherein the second step is specifically:
when the indication number of the first pH meter is smaller than 11, a metering pump on the first dosing pipeline is opened, the four-way valve correspondingly opens the first dosing pipeline, and dosing frequency is increased until the indication number of the first pH meter is not smaller than 11;
when the indication number of the second pH meter is smaller than 10, a metering pump on the second dosing pipeline is opened, the four-way valve correspondingly opens the second dosing pipeline, and dosing frequency is increased until the indication number of the second pH meter is not smaller than 10;
when the indication number of the third pH meter is smaller than 9, a metering pump on the third dosing pipeline is opened, the four-way valve correspondingly opens the third dosing pipeline, and dosing frequency is increased until the indication number of the third pH meter is between 8.5 and 9.
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| CN202210970097.3A CN115253387B (en) | 2022-08-12 | 2022-08-12 | Ammonia blowing cabinet and ammonia blowing method |
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| CN202210970097.3A CN115253387B (en) | 2022-08-12 | 2022-08-12 | Ammonia blowing cabinet and ammonia blowing method |
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| CN115253387B true CN115253387B (en) | 2023-12-08 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0534351A2 (en) * | 1991-09-21 | 1993-03-31 | Thyssen Industrie Ag | Process and plant for the treatment of highly concentrated ammoniacal waste water |
| CN1792828A (en) * | 2005-11-11 | 2006-06-28 | 武汉科梦科技发展有限公司 | Process for removing ammonia nitrogen in solution by high dispersing |
| CN1872707A (en) * | 2006-06-15 | 2006-12-06 | 武汉理工大学 | Removal method and equipment for sucking ammonia nitrogen in waste water through negative pressure of vacuum |
| CN101774658A (en) * | 2010-01-18 | 2010-07-14 | 武汉科梦科技发展有限公司 | Serial high-dispersion horizontal type ammonia removal equipment |
| CN102746982A (en) * | 2011-04-18 | 2012-10-24 | 王淋淋 | Multilevel large capacity tank-type photobioreactor capable of inhibiting growth of microalgae on wall |
| CN204039177U (en) * | 2014-08-25 | 2014-12-24 | 永清环保股份有限公司 | A kind of for the treatment of the device containing heavy metal high-concentration ammonia nitrogenous wastewater |
| CN106861243A (en) * | 2017-03-21 | 2017-06-20 | 苏州市海崴生物科技有限公司 | A kind of gas-liquid separation and the bubble trap of steady rate of flow of fluid |
| CN107596939A (en) * | 2017-10-24 | 2018-01-19 | 武汉华星光电半导体显示技术有限公司 | Detection means, agitator and defoaming method |
| CN111908545A (en) * | 2020-08-11 | 2020-11-10 | 江苏蓝晨环保科技有限公司 | Multistage stripping system for ammonia nitrogen wastewater |
| WO2022160563A1 (en) * | 2021-01-28 | 2022-08-04 | 北京坦思环保科技有限公司 | Apparatus and method for deep removal of nitrogen from industrial wastewater by means of anaerobic ammonium oxidation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9320989B2 (en) * | 2013-03-15 | 2016-04-26 | Haven Technology Solutions, LLC. | Apparatus and method for gas-liquid separation |
-
2022
- 2022-08-12 CN CN202210970097.3A patent/CN115253387B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0534351A2 (en) * | 1991-09-21 | 1993-03-31 | Thyssen Industrie Ag | Process and plant for the treatment of highly concentrated ammoniacal waste water |
| CN1792828A (en) * | 2005-11-11 | 2006-06-28 | 武汉科梦科技发展有限公司 | Process for removing ammonia nitrogen in solution by high dispersing |
| CN1872707A (en) * | 2006-06-15 | 2006-12-06 | 武汉理工大学 | Removal method and equipment for sucking ammonia nitrogen in waste water through negative pressure of vacuum |
| CN101774658A (en) * | 2010-01-18 | 2010-07-14 | 武汉科梦科技发展有限公司 | Serial high-dispersion horizontal type ammonia removal equipment |
| CN102746982A (en) * | 2011-04-18 | 2012-10-24 | 王淋淋 | Multilevel large capacity tank-type photobioreactor capable of inhibiting growth of microalgae on wall |
| CN204039177U (en) * | 2014-08-25 | 2014-12-24 | 永清环保股份有限公司 | A kind of for the treatment of the device containing heavy metal high-concentration ammonia nitrogenous wastewater |
| CN106861243A (en) * | 2017-03-21 | 2017-06-20 | 苏州市海崴生物科技有限公司 | A kind of gas-liquid separation and the bubble trap of steady rate of flow of fluid |
| CN107596939A (en) * | 2017-10-24 | 2018-01-19 | 武汉华星光电半导体显示技术有限公司 | Detection means, agitator and defoaming method |
| CN111908545A (en) * | 2020-08-11 | 2020-11-10 | 江苏蓝晨环保科技有限公司 | Multistage stripping system for ammonia nitrogen wastewater |
| WO2022160563A1 (en) * | 2021-01-28 | 2022-08-04 | 北京坦思环保科技有限公司 | Apparatus and method for deep removal of nitrogen from industrial wastewater by means of anaerobic ammonium oxidation |
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