CN215208573U - High ammonia wastewater blows system of taking off - Google Patents
High ammonia wastewater blows system of taking off Download PDFInfo
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- CN215208573U CN215208573U CN202121298945.8U CN202121298945U CN215208573U CN 215208573 U CN215208573 U CN 215208573U CN 202121298945 U CN202121298945 U CN 202121298945U CN 215208573 U CN215208573 U CN 215208573U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a high ammonia wastewater air stripping system, which comprises a high ammonia wastewater pool, wherein the high ammonia wastewater pool is connected with an inlet above an air stripping tower through a liquid inlet pipe, a water pump is arranged on the liquid inlet pipe, an air outlet at the top of the air stripping tower is connected with an air inlet below an absorption tower through a first exhaust pipe, an acid spray pipeline is arranged above one side of the absorption tower, the air outlet at the top of the absorption tower is connected with one end of a second exhaust pipe, the other end of the second exhaust pipe is connected with the air inlet below the air stripping tower, an air blower is arranged on the second exhaust pipe, an exhaust pipe is arranged above the liquid level of wastewater in the high ammonia wastewater pool, an air exhauster is arranged on the exhaust pipe, and the exhaust pipe is communicated with the second exhaust pipe; the utility model discloses an inner structure of blow-off tower and absorption tower optimizes to and the circulating line design, can effectively get rid of the ammonia nitrogen in the high ammonia waste water, has improved greatly and has blown off treatment effeciency.
Description
Technical Field
The utility model relates to a high ammonia wastewater treatment technical field specifically indicates a high ammonia wastewater blows system of taking off.
Background
The treatment of waste water is always a difficult problem which troubles the development of medicine and chemical production. The components harmful to the environment need to be removed, and can be discharged into the environment after reaching the discharge standard, otherwise, the components can be polluted and damaged by the environment. The wastewater generated in the production of amino acid often contains high ammonia, and for the high ammonia wastewater, ammonia nitrogen in the wastewater is usually removed by a device such as a stripping tower in the prior art. However, the stripping treatment efficiency of the stripping device in the prior art is low, ammonia cannot be completely absorbed, the subsequent treatment is difficult, and partial waste gas is released into the atmosphere to cause environmental pollution.
Disclosure of Invention
An object of the utility model is to overcome the aforesaid not enough, provide a high ammonia waste water blows and takes off system, can effectively get rid of the ammonia nitrogen in the high ammonia waste water, improve and blow off treatment effeciency.
The utility model discloses a solve above-mentioned technical problem, the technical scheme who adopts is: the utility model provides a high ammonia waste water blows and takes off system, includes high ammonia wastewater disposal basin, high ammonia wastewater disposal basin passes through the feed liquor pipe and is connected with the inlet that blows off the tower top, be equipped with the water pump on the feed liquor pipe, blows off tower top gas outlet and is connected with absorption tower below air inlet through first blast pipe, absorption tower one side top is equipped with acid spray line, absorption tower top gas outlet is connected with second blast pipe one end, the second blast pipe other end is connected with the air inlet that blows off the tower below, be equipped with the air-blower on the second blast pipe, waste water liquid level top is equipped with the exhaust tube in the high ammonia wastewater disposal basin, be equipped with the air exhauster on the exhaust tube, exhaust tube and second blast pipe intercommunication.
Preferably, the first inner shell of the stripping tower is a venturi tube structure with a narrow middle part and wide two ends, and a first multilayer filler is arranged in the venturi tube structure.
Preferably, a plurality of through holes are formed in the first multilayer filler, a plurality of air holes are formed in the side wall of the first inner shell, a plurality of first spray headers are arranged above the first multilayer filler, and the first spray headers are connected with the liquid inlet pipe.
Preferably, a first demister is further arranged at the air outlet at the top of the stripping tower.
Preferably, the bottom of the stripping tower is communicated with a first liquid discharge pipe, and a first valve is arranged on the first liquid discharge pipe.
Preferably, the second inner shell of the absorption tower is a venturi tube structure with a narrow middle part and wide two ends, and a second multilayer filler is arranged in the second inner shell.
Preferably, a plurality of through holes are formed in the second multilayer filler, a plurality of air holes are formed in the side wall of the second inner shell, a plurality of second spray headers are arranged above the second multilayer filler, the second spray headers are communicated with one end of an acid spray pipeline, the other end of the acid spray pipeline is communicated with the bottom of the absorption tower, and a circulating pump is arranged on the acid spray pipeline.
Preferably, a second demister is further arranged at the air outlet position at the top of the absorption tower.
Preferably, the acid spraying pipeline is further connected with a second liquid discharge pipe, and a second valve is arranged on the second liquid discharge pipe.
The utility model has the advantages that: the utility model discloses an inner structure of blow-off tower and absorption tower optimizes to and the circulating line design, can effectively get rid of the ammonia nitrogen in the high ammonia waste water, has improved greatly and has blown off treatment effeciency.
Drawings
FIG. 1 is a schematic structural diagram of a high ammonia wastewater stripping system.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
As shown in fig. 1, a high ammonia wastewater blows and takes off system, including high ammonia wastewater disposal basin 1, high ammonia wastewater disposal basin 1 is connected with the inlet of blowing and taking off 3 tops of tower through feed liquor pipe 2, be equipped with water pump 4 on the feed liquor pipe 2, blow and take off 3 top gas outlets of tower through first blast pipe 5 and be connected with the air inlet of 6 below of absorption tower, 6 one side tops of absorption tower are equipped with acid spray line 7, 6 top gas outlets of absorption tower are connected with 8 one end of second blast pipe, 8 other ends of second blast pipe are connected with the air inlet of blowing and taking off 3 below of tower, be equipped with air-blower 10 on the second blast pipe 8, waste water liquid level top is equipped with exhaust tube 9 in the high ammonia wastewater disposal basin 1, be equipped with air exhauster 11 on the exhaust tube 9, exhaust tube 9 and second blast pipe 8 intercommunication.
Specifically, the first inner shell 3.1 of the stripping tower 3 is a venturi tube structure with a narrow middle part and wide two ends, and a first multilayer filler 12 is arranged in the venturi tube structure.
Specifically, a plurality of through holes are formed in the first multilayer filler 12, a plurality of air holes are formed in the side wall of the first inner shell 3.1, a plurality of first spray headers 13 are arranged above the first multilayer filler 12, and the first spray headers 13 are connected with the liquid inlet pipe 2.
Specifically, a first demister 14 is further arranged at the air outlet position at the top of the stripping tower 3.
Specifically, the bottom of the stripping tower 3 is communicated with a first liquid discharge pipe 19, and a first valve 20 is arranged on the first liquid discharge pipe 19.
Specifically, the second inner shell 6.1 of the absorption tower 6 is a venturi tube structure with a narrow middle part and wide two ends, and a second multilayer filler 15 is arranged inside the venturi tube structure.
Specifically, a plurality of through holes are formed in the second multilayer packing 15, a plurality of air holes are formed in the side wall of the second inner shell 6.1, a plurality of second spray headers 16 are arranged above the second multilayer packing 15, the second spray headers 16 are communicated with one end of the acid spray pipeline 7, the other end of the acid spray pipeline 7 is communicated with the bottom of the absorption tower 6, and a circulating pump 17 is arranged on the acid spray pipeline 7.
Specifically, a second demister 18 is further arranged at the air outlet position at the top of the absorption tower 6.
Specifically, the acid spray line 7 is further connected to a second drain pipe 21, and a second valve 22 is provided on the second drain pipe 21.
In the above embodiment, the gas discharged from the high ammonia wastewater tank 1 and the gas discharged from the absorption tower 6 are re-introduced into the stripping tower 3 by the blower, so that the recycling of the gas and the zero emission of harmful gases (such as ammonia gas and hydrogen chloride) are realized.
The stripping tower 3 and the absorption tower 6 are both provided with inner shell structures in venturi tube structures, and have multiple layers of packing at the narrowest part, when spraying and gas pass through the multiple layers of packing, the dynamic pressure and speed of the packing are maximized, and the flow speed of the gas rises due to the reduction of the cross-sectional area. The spray enters from the upper end of the inner shell structure, the gas enters from the lower part of the inner shell structure, and the spray and the gas react at the narrowest part, so that the liquid and the gas can be fully reacted by the design at the position, and the use of acid is reduced; it can be known from bernoulli's law that the increase of velocity of flow is accompanied with the reduction of fluid pressure, therefore can produce the low pressure near the fluid of high-speed flow to produce the adsorption, make gaseous through-hole that can also follow the narrower department of inner shell inhaled, make the reaction aggravate, reaction efficiency improves, make the ammonia in the waste water of following the air stripping tower exhaust fully blown away, and fully absorbed in the absorption tower.
In addition, the first demister 14 and the second demister 18 can effectively remove components such as foam and mist mixed in the gas.
The working principle of the embodiment is as follows:
ammonium ion (NH) as ammonia nitrogen in wastewater4+) And free ammonia (NH)3) The equilibrium relationship is as follows: NH (NH)3+H2O⇆NH4++OH-The pH is increased, i.e. OH-Increase and balance shift to the left. At a pH above 11, the wastewater is predominantly present as free ammonia.
After high ammonia waste water gets into high ammonia wastewater disposal basin 1, adjust pH earlier to more than 12.0, open water pump 4, let in waste water blow-off tower 3 through feed liquor pipe 2, upper portion in the blow-off tower has first shower head 13 of intensive arrangement, optional atomizer, spray waste liquid from last to bottom through first shower head 13, in spraying, from supreme gas of letting in down, this gas is sent into through exhaust tube 9, after air exhauster 11 opens, the mixed gas of ammonia and the air of waste water liquid level top in high ammonia wastewater disposal basin 1 is sent into in the blow-off tower through exhaust tube 9, thereby blow off the treatment process to the waste liquid that first shower head 13 sprayed, make free ammonia nitrogen (promptly) in the waste liquid be taken away, remaining waste water discharges through first exhaust tube 19 below blow-off tower 3, get into next processing procedure.
The ammonia gas blown off enters a first exhaust pipe 5 from a gas outlet at the top of the blowing tower 3 and then enters the bottom of an absorption tower 6, and the absorption tower 6 is similar to the blowing tower 3 in structure and principle. Ammonia gas enters from the bottom of the absorption tower 3 upwards, dilute sulfuric acid (other acids can be selected according to the production process requirement) in the acid spraying pipeline 7 is sprayed downwards through the second spraying head 16, the ammonia gas is absorbed through sprayed acid mist, waste gas which is not completely absorbed enters the second exhaust pipe 8 from the air outlet at the top of the absorption tower 6, and the waste gas is discharged into the air inlet of the air stripping tower 3 for circulation after the air blower 10 is started. One end of the air exhaust pipe 9 is intersected and extends into an air inlet of the air stripping tower 3, and the second air exhaust pipe 8 is provided with an air blower 10.
In the absorption tower 6, the sprayed sulfuric acid is collected at the bottom of the absorption tower 6, and the top of the absorption tower can be continuously pumped back for spraying through the circulating pump 17 until the detection product is mainly ammonium sulfate, and the detection product can be discharged to an ammonium sulfate storage tank through the second liquid discharge pipe 21, and the generated ammonium sulfate can be used for fermentation production.
The above embodiments are merely preferred technical solutions of the present invention, and should not be considered as limitations of the present invention, and the features in the embodiments and the examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (9)
1. The utility model provides a high ammonia waste water blows and takes off system, includes high ammonia wastewater disposal basin (1), high ammonia wastewater disposal basin (1) is connected through feed liquor pipe (2) and the inlet of blowing off tower (3) top, be equipped with water pump (4), its characterized in that on feed liquor pipe (2): blow and take off tower (3) top gas outlet and be connected with absorption tower (6) below air inlet through first blast pipe (5), absorption tower (6) one side top is equipped with acid spray line (7), absorption tower (6) top gas outlet is connected with second blast pipe (8) one end, the second blast pipe (8) other end is connected with the air inlet of blowing and taking off tower (3) below, be equipped with air-blower (10) on second blast pipe (8), waste water liquid level top is equipped with exhaust tube (9) in high ammonia wastewater disposal basin (1), be equipped with air exhauster (11) on exhaust tube (9), exhaust tube (9) and second blast pipe (8) intercommunication.
2. The high ammonia wastewater stripping system according to claim 1, characterized in that: the first inner shell (3.1) of the stripping tower (3) is of a Venturi tube structure with a narrow middle part and wide two ends, and a first multilayer filler (12) is arranged in the Venturi tube structure.
3. The high ammonia wastewater stripping system according to claim 2, characterized in that: a plurality of through holes are formed in the first multilayer filler (12), a plurality of air holes are formed in the side wall of the first inner shell (3.1), a plurality of first spray heads (13) are arranged above the first multilayer filler (12), and the first spray heads (13) are connected with the liquid inlet pipe (2).
4. The high ammonia wastewater stripping system according to claim 2, characterized in that: and a first demister (14) is also arranged at the air outlet at the top of the stripping tower (3).
5. The high ammonia wastewater stripping system according to claim 2, characterized in that: blow and take off tower (3) bottom and first drain pipe (19) intercommunication, be equipped with first valve (20) on first drain pipe (19).
6. The high ammonia wastewater stripping system according to claim 1, characterized in that: the second inner shell (6.1) of the absorption tower (6) is of a Venturi tube structure with a narrow middle part and wide two ends, and a second multilayer filler (15) is arranged in the second inner shell.
7. The high ammonia wastewater stripping system according to claim 6, characterized in that: a plurality of through holes are formed in the second multilayer packing (15), a plurality of air holes are formed in the side wall of the second inner shell (6.1), a plurality of second spray heads (16) are arranged above the second multilayer packing (15), the second spray heads (16) are communicated with one end of the acid spray pipeline (7), the other end of the acid spray pipeline (7) is communicated with the bottom of the absorption tower (6), and a circulating pump (17) is arranged on the acid spray pipeline (7).
8. The high ammonia wastewater stripping system according to claim 6, characterized in that: and a second demister (18) is also arranged at the air outlet at the top of the absorption tower (6).
9. The high ammonia wastewater stripping system according to claim 6, characterized in that: the acid spraying pipeline (7) is also connected with a second liquid discharge pipe (21), and a second valve (22) is arranged on the second liquid discharge pipe (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121298945.8U CN215208573U (en) | 2021-06-10 | 2021-06-10 | High ammonia wastewater blows system of taking off |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121298945.8U CN215208573U (en) | 2021-06-10 | 2021-06-10 | High ammonia wastewater blows system of taking off |
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| Publication Number | Publication Date |
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| CN215208573U true CN215208573U (en) | 2021-12-17 |
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| CN202121298945.8U Active CN215208573U (en) | 2021-06-10 | 2021-06-10 | High ammonia wastewater blows system of taking off |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114956240A (en) * | 2022-05-27 | 2022-08-30 | 甘肃省平凉生态环境监测中心 | Ammonia removal device and method for ammonia nitrogen wastewater |
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2021
- 2021-06-10 CN CN202121298945.8U patent/CN215208573U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114956240A (en) * | 2022-05-27 | 2022-08-30 | 甘肃省平凉生态环境监测中心 | Ammonia removal device and method for ammonia nitrogen wastewater |
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