CN210193456U - System for retrieve ammonium sulfate from including ammonia waste water - Google Patents
System for retrieve ammonium sulfate from including ammonia waste water Download PDFInfo
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- CN210193456U CN210193456U CN201920749021.1U CN201920749021U CN210193456U CN 210193456 U CN210193456 U CN 210193456U CN 201920749021 U CN201920749021 U CN 201920749021U CN 210193456 U CN210193456 U CN 210193456U
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Abstract
A system for recovering ammonium sulfate from ammonia-containing wastewater mainly comprises a deamination water inlet pump, a water inlet heat exchanger, a negative pressure deamination tower, a jet absorber, an ammonium sulfate recovery tank and a spray tower which are connected in sequence; the system has scientific structural design and good deamination effect, and can effectively save energy.
Description
Technical Field
The utility model relates to an contain ammonia waste water energy saving and emission reduction and handle and the resourceization field, especially relate to a system for retrieve ammonium sulfate from containing ammonia waste water.
Background
The method for recovering the ammonium sulfate from the high-concentration ammonia nitrogen wastewater is an effective way for solving the problems of wastewater discharge and resource utilization. The method is divided into two parts, firstly, ammonia nitrogen in the wastewater is converted into free ammonia to be removed, secondly, the ammonia is chemically absorbed by sulfuric acid, and ammonium sulfate solution is recovered.
Currently, the common deamination technologies mainly comprise air stripping and steam stripping. However, the stripping process cannot realize the efficient removal of ammonia, the effluent is often difficult to directly discharge, the mass transfer is carried out by adopting air, the gas-water ratio is large, the tail gas is difficult to stably reach the standard during absorption, the steam stripping method generally operates under the conditions of higher temperature and pressure, the equipment operation is complex, and the service life is limited. Therefore, the development of a novel process method for recovering ammonium sulfate by deamination has important application value.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide a structural design science, the deamination is effectual, can be effectively energy saving one kind from the system of retrieving ammonium sulfate in containing ammonia waste water.
For realizing the utility model provides the following technical scheme:
a system for recovering ammonium sulfate from ammonia-containing wastewater mainly comprises a deamination water inlet pump, a water inlet heat exchanger, a negative pressure deamination tower, a jet absorber, an ammonium sulfate recovery tank and a spray tower which are connected in sequence; the water inlet heat exchanger is provided with a first water inlet T1, a second water inlet T2, a first water outlet T1 and a second water outlet T2; the upper part of the side wall of the negative pressure deamination tower is provided with a water inlet J1, the top of the negative pressure deamination tower is provided with a gas outlet Q1, the lower part of the side wall of the negative pressure deamination tower is provided with a steam inlet Z1, and the bottom of the negative pressure deamination tower is provided with a water outlet C1; an air inlet S1 is arranged at the upper part of the side wall of the jet flow absorber, a liquid inlet S2 is arranged at the top, and a liquid outlet S3 is arranged at the bottom; a first circulating liquid outlet X1 and a second circulating liquid outlet X2 are arranged at the bottom of the ammonium sulfate recovery tank; a liquid inlet X3 is arranged at the upper part of the side wall of the spray tower, a steam outlet Q2 is arranged at the top of the spray tower, and the bottom of the spray tower is communicated with the top of the ammonium sulfate recovery tank; an outlet of the deamination water inlet pump is connected with a first water inlet T1 of the water inlet heat exchanger, a first water outlet T1 of the water inlet heat exchanger is connected with a water inlet J1 of the negative pressure deamination tower, a water outlet C1 of the negative pressure deamination tower is connected with a second water inlet T2 of the water inlet heat exchanger, and a second water outlet T2 of the water inlet heat exchanger is connected with a deamination water outlet header pipe; a gas outlet Q1 of the negative pressure deamination tower is connected with a gas inlet S1 of the jet absorber, and a liquid outlet S3 at the bottom of the jet absorber is connected with the top of the ammonium sulfate recovery tank; and a first circulating liquid outlet X1 of the ammonium sulfate recovery tank is connected with a liquid inlet S2 of the jet absorber, and a second circulating liquid outlet X2 of the ammonium sulfate recovery tank is connected with a liquid inlet X3 of the spray tower.
Further, a condenser used for controlling the temperature of the top of the negative pressure deamination tower is arranged at the top of the negative pressure deamination tower and is positioned above a water inlet J1 of the negative pressure deamination tower; the condenser is provided with a cooling water inlet L1 and a cooling water outlet L2.
Further, a steam inlet Z1 of the negative pressure deamination tower is connected with a steam outlet Q5 of a steam jet pump, and the steam jet pump is also provided with a first air inlet Q3 and a second air inlet Q4; the first air inlet Q3 is connected with a steam outlet Q2 of the spray tower, and the second air inlet Q4 is connected with a saturated steam inlet pipe.
Further, the second circulation liquid outlet X2 of ammonium sulfate recovery jar still is connected with the first inlet K1 of moisturizing pre-heater, still set up second inlet W1, first liquid outlet K2 and second liquid outlet W2 on the moisturizing pre-heater, first liquid outlet K2 is connected with the ammonium sulfate exit tube, second inlet W1 advances union coupling with the process water, second liquid outlet W2 is connected with moisturizing mouth B1 on spray tower lateral wall upper portion.
Further, a circulating absorption pump is arranged between the first circulating liquid outlet X1 of the ammonium sulfate recovery tank and the liquid inlet S2 of the jet absorber.
Furthermore, a circulating spray pump is arranged between the second circulating liquid outlet X2 of the ammonium sulfate recovery tank and the liquid inlet X3 of the spray tower.
Further, a deamination water pump is arranged between a water outlet C1 of the negative pressure deamination tower and a second water inlet t2 of the water inlet heat exchanger.
Further, a chemical adding port N1 is further arranged between a second liquid outlet W2 of the water supplementing preheater and a liquid supplementing port B1 of the spray tower, and the chemical adding port N1 is connected with a concentrated sulfuric acid inlet pipe.
The utility model discloses an useful part:
firstly, the method comprises the following steps: the ratio of the ammonia water and the steam at the top of the negative pressure deamination tower is adjusted by arranging a built-in tower top condenser, the ammonia gas at the top of the tower is absorbed by a jet absorber, and the negative pressure deamination is realized while the ammonium sulfate is recovered;
secondly, the method comprises the following steps: a first circulating liquid outlet X1 of the ammonium sulfate recovery tank, a circulating absorption pump and a jet absorber are used for circularly absorbing ammonia gas generated in the negative pressure deamination tower; the incompletely absorbed ammonia gas is secondarily absorbed by the spray tower, so that the ammonia gas absorption effect is good;
thirdly, the method comprises the following steps: the water inlet temperature of the supplementing process water is increased by arranging a water supplementing preheater, and then concentrated sulfuric acid is supplemented to release heat to be superposed to generate more secondary steam;
fourthly: the secondary steam generated by the ammonium sulfate recovery tank is recycled by using the steam jet pump, so that the resources are effectively saved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1 is a deamination water inlet pump, 2 is a water inlet heat exchanger, 3 is a negative pressure deamination tower, 3.1 is a condenser, 4 is a jet flow absorber, 5 is a ammonium sulfate recovery tank, 6 is a spray tower, 7 is a steam jet pump, 8 is a water supplement preheater, 9 is a circulating absorption pump, 10 is a circulating spray pump, 11 is a deamination water outlet pump, 12 is a deamination water outlet main pipe, 13 is a saturated steam inlet pipe, 14 is an ammonium sulfate outlet pipe, 15 is a process water inlet pipe, and 16 is a concentrated sulfuric acid inlet pipe.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
A system for recovering ammonium sulfate from ammonia-containing wastewater mainly comprises a deamination water inlet pump 1, a water inlet heat exchanger 2, a negative pressure deamination tower 3, a jet absorber 4, an ammonium sulfate recovery tank 5 and a spray tower 6 which are connected in sequence; the water inlet heat exchanger 2 is provided with a first water inlet T1, a second water inlet T2, a first water outlet T1 and a second water outlet T2; the upper part of the side wall of the negative pressure deamination tower 3 is provided with a water inlet J1, the top of the negative pressure deamination tower is provided with a gas outlet Q1, the lower part of the side wall is provided with a steam inlet Z1, and the bottom of the negative pressure deamination tower is provided with a water outlet C1; an air inlet S1 is arranged at the upper part of the side wall of the jet absorber 4, a liquid inlet S2 is arranged at the top, and a liquid outlet S3 is arranged at the bottom; the bottom of the ammonium sulfate recovery tank 5 is provided with a first circulating liquid outlet X1 and a second circulating liquid outlet X2; a liquid inlet X3 is arranged at the upper part of the side wall of the spray tower 6, a steam outlet Q2 is arranged at the top, and the bottom of the spray tower 6 is communicated with the top of the ammonium sulfate recovery tank 5; an outlet of the deamination water inlet pump 1 is connected with a first water inlet T1 of a water inlet heat exchanger 2, a first water outlet T1 of the water inlet heat exchanger 2 is connected with a water inlet J1 of a negative pressure deamination tower 3, a water outlet C1 of the negative pressure deamination tower 3 is connected with a second water inlet T2 of the water inlet heat exchanger 2, and a second water outlet T2 of the water inlet heat exchanger 2 is connected with a deamination water outlet header pipe 12; a gas outlet Q1 of the negative pressure deamination tower 3 is connected with a gas inlet S1 of the jet flow absorber 4, and a liquid outlet S3 at the bottom of the jet flow absorber 3 is connected with the top of the ammonium sulfate recovery tank 5; a first circulating liquid outlet X1 of the ammonium sulfate recovery tank 5 is connected with a liquid inlet S2 of the jet absorber 4, and a second circulating liquid outlet X2 of the ammonium sulfate recovery tank 5 is connected with a liquid inlet X3 of the spray tower 6; the top of the negative pressure deamination tower 3 is also provided with a condenser 3.1 for controlling the temperature at the top of the negative pressure deamination tower, and the condenser 3.1 is positioned above a water inlet J1 of the negative pressure deamination tower 3; the condenser 3.1 is provided with a cooling water inlet L1 and a cooling water outlet L2; a steam inlet Z1 of the negative pressure deamination tower 3 is connected with a gas outlet Q5 of a steam jet pump 7, and the steam jet pump 7 is also provided with a first gas inlet Q3 and a second gas inlet Q4; the first air inlet Q3 is connected with a steam outlet Q2 of the spray tower 6, the second air inlet Q4 is connected with a saturated steam inlet pipe 13, a second circulating liquid outlet X2 of the ammonium sulfate recovery tank 5 is also connected with a first liquid inlet K1 of a water supplementing preheater 8, the water supplementing preheater 8 is further provided with a second liquid inlet W1, a first liquid outlet K2 and a second liquid outlet W2, the first liquid outlet K2 is connected with an ammonium sulfate outlet pipe 14, the second liquid inlet W1 is connected with a process water inlet pipe 15, the second liquid outlet W2 is connected with a liquid supplementing port B1 at the upper part of the side wall of the spray tower 6, a circulating absorption pump 9 is further arranged between a first circulating liquid outlet X1 of the ammonium sulfate recovery tank 6 and a liquid inlet S38 of a jet absorber 5964, a circulating spray pump 10 is further arranged between a second circulating liquid outlet X48 of the ammonium sulfate recovery tank 5 and a liquid inlet X3 of the spray tower 6, and a water inlet heat exchanger t2 of a water inlet 3911 of the deamination tower 3, and a medicine adding port N1 is also arranged between a second liquid outlet W2 of the water supplementing preheater 8 and a liquid supplementing port B1 of the spray tower 6, and the medicine adding port N1 is connected with a concentrated sulfuric acid inlet pipe 16.
The working principle of the system is as follows:
the ammonia-containing wastewater is lifted by a deamination water inlet pump 1, enters a negative pressure deamination tower 3 after passing through a water inlet heat exchanger 2, the ammonia-containing wastewater in the negative pressure deamination tower 3 flows downwards and carries out mass and heat transfer with steam entering from a steam inlet Z1 of the negative pressure deamination tower 3, and ammonia in the ammonia-containing wastewater overflows from water in the form of ammonia gas and gathers at the top of the negative pressure deamination tower 3; waste water after deamination is obtained in the negative pressure deamination tower 3, is lifted by a deamination water outlet pump 11, passes through a water inlet heat exchanger 2 and is discharged by a deamination water outlet header pipe 12;
a condenser 3.1 is arranged at the top of the negative pressure deamination tower 3, the temperature at the top of the tower is controlled by controlling the circulating water quantity of the condenser 3.1, high-concentration ammonia-containing gas is enriched at the top of the tower and is sucked by a jet absorber 4, the stroke of the top of the tower is negative, ammonia gas is absorbed and enters an ammonium sulfate recovery tank 5, and an ammonium sulfate solution is arranged in the ammonium sulfate recovery tank 5; the ammonia gas is circularly absorbed by the ammonium sulfate solution through a first circulating liquid outlet X1 and a circulating absorption pump 9; the bottom of the spray tower 6 is communicated with the top of the ammonium sulfate recovery tank 5, residual ammonia gas in the ammonium sulfate recovery tank 5 enters the spray tower 6 from the bottom of the spray tower 6, and secondary spray absorption of the residual ammonia gas is realized by utilizing a second circulating liquid outlet X2 and a circulating spray pump 10;
the high-temperature ammonium sulfate solution exchanges heat with the supplemented process water, the supplemented process water is heated, part of the process water is converted into steam by reaction heat released after the concentrated sulfuric acid is supplemented, and the steam and the saturated steam enter the negative-pressure deamination tower 3 through a steam jet pump 7;
when the ammonium sulfate solution in the ammonium sulfate recovery tank 5 is saturated to form an ammonium sulfate solution, the ammonium sulfate solution is discharged through an ammonium sulfate outlet pipe 14 after heat exchange through a water supplementing preheater 8.
The present invention is not limited to the above-mentioned system for recovering ammonium sulfate from ammonia-containing wastewater, and various changes can be made by those skilled in the art, but any changes equivalent or similar to the present invention are intended to be covered by the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a system for retrieve ammonium sulfate from including ammonia waste water which characterized in that: the device mainly comprises a deamination water inlet pump, a water inlet heat exchanger, a negative pressure deamination tower, a jet absorber, an ammonium sulfate recovery tank and a spray tower which are connected in sequence;
the water inlet heat exchanger is provided with a first water inlet T1, a second water inlet T2, a first water outlet T1 and a second water outlet T2;
the upper part of the side wall of the negative pressure deamination tower is provided with a water inlet J1, the top of the negative pressure deamination tower is provided with a gas outlet Q1, the lower part of the side wall of the negative pressure deamination tower is provided with a steam inlet Z1, and the bottom of the negative pressure deamination tower is provided with a water outlet C1;
an air inlet S1 is arranged at the upper part of the side wall of the jet flow absorber, a liquid inlet S2 is arranged at the top, and a liquid outlet S3 is arranged at the bottom;
a first circulating liquid outlet X1 and a second circulating liquid outlet X2 are arranged at the bottom of the ammonium sulfate recovery tank;
a liquid inlet X3 is arranged at the upper part of the side wall of the spray tower, a steam outlet Q2 is arranged at the top of the spray tower, and the bottom of the spray tower is communicated with the top of the ammonium sulfate recovery tank;
an outlet of the deamination water inlet pump is connected with a first water inlet T1 of the water inlet heat exchanger, a first water outlet T1 of the water inlet heat exchanger is connected with a water inlet J1 of the negative pressure deamination tower, a water outlet C1 of the negative pressure deamination tower is connected with a second water inlet T2 of the water inlet heat exchanger, and a second water outlet T2 of the water inlet heat exchanger is connected with a deamination water outlet header pipe;
a gas outlet Q1 of the negative pressure deamination tower is connected with a gas inlet S1 of the jet absorber, and a liquid outlet S3 at the bottom of the jet absorber is connected with the top of the ammonium sulfate recovery tank;
and a first circulating liquid outlet X1 of the ammonium sulfate recovery tank is connected with a liquid inlet S2 of the jet absorber, and a second circulating liquid outlet X2 of the ammonium sulfate recovery tank is connected with a liquid inlet X3 of the spray tower.
2. The system for recovering ammonium sulfate from ammonia-containing wastewater as claimed in claim 1, wherein: the top of the negative pressure deamination tower is also provided with a condenser for controlling the temperature at the top of the negative pressure deamination tower, and the condenser is positioned above a water inlet J1 of the negative pressure deamination tower; the condenser is provided with a cooling water inlet L1 and a cooling water outlet L2.
3. The system for recovering ammonium sulfate from ammonia-containing wastewater as claimed in claim 1, wherein: a steam inlet Z1 of the negative pressure deamination tower is connected with a gas outlet Q5 of a steam jet pump, and the steam jet pump is also provided with a first gas inlet Q3 and a second gas inlet Q4; the first air inlet Q3 is connected with a steam outlet Q2 of the spray tower, and the second air inlet Q4 is connected with a saturated steam inlet pipe.
4. The system for recovering ammonium sulfate from ammonia-containing wastewater as claimed in claim 1, wherein: the second circulation liquid outlet X2 of sulphur ammonium recovery jar still is connected with the first inlet K1 of moisturizing pre-heater, still set up second inlet W1, first liquid outlet K2 and second liquid outlet W2 on the moisturizing pre-heater, first liquid outlet K2 is connected with the ammonium sulfate exit tube, second inlet W1 advances union coupling with the process water, second liquid outlet W2 is connected with moisturizing mouth B1 on spray column lateral wall upper portion.
5. The system for recovering ammonium sulfate from ammonia-containing wastewater as claimed in claim 1, wherein: and a circulating absorption pump is also arranged between the first circulating liquid outlet X1 of the ammonium sulfate recovery tank and the liquid inlet S2 of the jet absorber.
6. The system for recovering ammonium sulfate from ammonia-containing wastewater as claimed in claim 1, wherein: and a circulating spray pump is also arranged between a second circulating liquid outlet X2 of the ammonium sulfate recovery tank and a liquid inlet X3 of the spray tower.
7. The system for recovering ammonium sulfate from ammonia-containing wastewater as claimed in claim 1, wherein: and a deamination water pump is also arranged between the water outlet C1 of the negative pressure deamination tower and the second water inlet t2 of the water inlet heat exchanger.
8. The system for recovering ammonium sulfate from ammonia-containing wastewater as claimed in claim 4, wherein: and a medicine adding port N1 is also arranged between a second liquid outlet W2 of the water supplementing preheater and a liquid supplementing port B1 of the spray tower, and the medicine adding port N1 is connected with a concentrated sulfuric acid inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920749021.1U CN210193456U (en) | 2019-05-23 | 2019-05-23 | System for retrieve ammonium sulfate from including ammonia waste water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920749021.1U CN210193456U (en) | 2019-05-23 | 2019-05-23 | System for retrieve ammonium sulfate from including ammonia waste water |
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| CN210193456U true CN210193456U (en) | 2020-03-27 |
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| CN201920749021.1U Active CN210193456U (en) | 2019-05-23 | 2019-05-23 | System for retrieve ammonium sulfate from including ammonia waste water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110065986A (en) * | 2019-05-23 | 2019-07-30 | 金猛 | A kind of system recycling ammonium sulfate from ammonia-containing water |
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2019
- 2019-05-23 CN CN201920749021.1U patent/CN210193456U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110065986A (en) * | 2019-05-23 | 2019-07-30 | 金猛 | A kind of system recycling ammonium sulfate from ammonia-containing water |
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