CN204874161U - Device of ammonia nitrogen in filtration liquid is got rid of to negative pressure ammonia still process method - Google Patents
Device of ammonia nitrogen in filtration liquid is got rid of to negative pressure ammonia still process method Download PDFInfo
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- CN204874161U CN204874161U CN201520337023.1U CN201520337023U CN204874161U CN 204874161 U CN204874161 U CN 204874161U CN 201520337023 U CN201520337023 U CN 201520337023U CN 204874161 U CN204874161 U CN 204874161U
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Abstract
The utility model relates to a device of ammonia nitrogen in filtration liquid is got rid of to negative pressure ammonia still process method, including refrigeration cycle water system, heating medium system, pre -heater, dephlegmator, ammonia still, total condenser, reboiler and deammoniation water pitcher, compare the steam consumption with the conventional equipment and is showing and reduce, and negative pressure ammonia still process require the equipment material of ammonia still low, the small investment, though the negative pressure distillation increases certain power consumption, on -the -spot ammonia pollution is showing and is descending, economic benefits obviously improves, environmental protection profit is showing.
Description
Technical field
The utility model belongs to technical field of waste water processing, is specifically related to the device that a kind of negative pressure ammonia still process method removes ammonia nitrogen in percolate.
Background technology
The general ammonia nitrogen containing higher concentration in percolate, the principal mode of current ammonia aeration has aeration tank, stripping tower and rectifying tower.Current domestic maximum be first two form.The Property comparison of several stripping device is as following table
| Stripping mode | Efficiency | Vent gas treatment | Take up an area | Cost | Temperature |
| Aeration tank | Low | Difficult | Greatly | Low | There is impact |
| Stripping tower | Higher | Difficult | Less | High | There is impact |
| Rectifying tower | Very high | More easily process | Minimum | High | Without impact |
Aeration tank blow-off method due to gas liquid interfacial area little, stripping efficiency is low, is not suitable for the process of high ammonia nitrogen leachate; Although stripping tower blow-off method has higher removal efficiency, have investment running cost high, deamination tail gas is difficult to the shortcoming of administering.In addition, air stripping method is for average temperature of the whole year lower ground district, and under there is cold condition, stripping cannot normally run and the problem that winter, stripping tower froze, and in the northern area of China, its application is subject to certain restrictions.
By contrast, rectifying tower deamination is the more promising solution of one, although adopt this method to need certain steam, because water temperature improves, can reduce the soda acid consumption of adjustment PH, can also reduce vapour-liquid ratio, reduce the power consumption of blower fan.In addition, after distillation, deamination tail gas can be directly changed into liquefied ammonia by condensation, can recycle, and efficiently solves the problem that tail gas is difficult to administer.Therefore, the exploitation of new and effective stripping device, deamination tail gas deal carefully with the direction becoming and study from now on.
Utility model content
The utility model provides the device that a kind of negative pressure ammonia still process method removes ammonia nitrogen in percolate, comprise cooling circulating water system, heating medium system, preheater, dephlegmator, ammonia still, complete condenser, reboiler and deammoniation water pot, the entrance of described preheater is connected with waste water head tank, outlet is connected with ammonia still, the top of ammonia still is provided with the dephlegmator and complete condenser that connect successively, bottom is provided with steam entry and water outlet, wherein, steam entry is connected with the outlet of reboiler, water outlet is connected with the bottom inlet of reboiler and the water-in of preheater respectively, the entrance of heating medium system is connected with the outlet at bottom of reboiler, outlet is connected with the top entry of reboiler, the entrance of cooling circulating water system is connected with the upper outlet of dephlegmator and the left side outlet of complete condenser respectively, outlet is connected with the bottom inlet of dephlegmator and the right hand inlet port of complete condenser respectively, the outlet at bottom of complete condenser is connected with deammoniation water pot.
The device that this negative pressure ammonia still process method removes ammonia nitrogen in percolate has the following advantages: can make full use of waste water self waste heat, ammonia still temperature is down to 80 DEG C of vacuum distillation temperature by conventional distil-lation temperature 105 DEG C, and charging wastewater temperature is reduced to current about 65 DEG C by about original 80 DEG C.Steam consumption significantly reduces compared with conventional equipment, and negative pressure ammonia still process requires low to the equipment material of ammonia still, less investment, although vacuum distillation increases certain power consumption, the ammonia at scene pollutes and significantly declines, and economic benefit significantly improves, and environmental benefit is remarkable.
Accompanying drawing explanation
Fig. 1 is structure iron of the present utility model.
Embodiment
Below in conjunction with Figure of description, the utility model is described further.
Raw material waste water enters ammonia still after preheater preheats, when nitrogen-containing wastewater flows downward in ammonia still with in ammonia still on the water vapour that flows contact, ammonia discharges gradually from waste water, and the ammonia steam obtained at ammonia still process tower top and water vapor mixture enter in deammoniation water pot after dephlegmator and complete condenser condensation.The purer waste water part obtained at the bottom of ammonia still enters reboiler, and another part enters preheater to raw material wastewater heat exchange.
Below be only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, not departing from the some improvements and modifications under the utility model principle prerequisite, protection domain of the present utility model should be considered as.
Claims (1)
1. a negative pressure ammonia still process method removes the device of ammonia nitrogen in percolate, comprise cooling circulating water system, heating medium system, preheater, dephlegmator, ammonia still, complete condenser, reboiler and deammoniation water pot, it is characterized in that, the entrance of preheater is connected with waste water head tank, outlet is connected with ammonia still, the top of ammonia still is provided with the dephlegmator and complete condenser that connect successively, bottom is provided with steam entry and water outlet, wherein, steam entry is connected with the outlet of reboiler, water outlet is connected with the bottom inlet of reboiler and the water-in of preheater respectively, the entrance of heating medium system is connected with the outlet at bottom of reboiler, outlet is connected with the top entry of reboiler, the entrance of cooling circulating water system is connected with the upper outlet of dephlegmator and the left side outlet of complete condenser respectively, outlet is connected with the bottom inlet of dephlegmator and the right hand inlet port of complete condenser respectively, the outlet at bottom of complete condenser is connected with deammoniation water pot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520337023.1U CN204874161U (en) | 2015-05-24 | 2015-05-24 | Device of ammonia nitrogen in filtration liquid is got rid of to negative pressure ammonia still process method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520337023.1U CN204874161U (en) | 2015-05-24 | 2015-05-24 | Device of ammonia nitrogen in filtration liquid is got rid of to negative pressure ammonia still process method |
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| Publication Number | Publication Date |
|---|---|
| CN204874161U true CN204874161U (en) | 2015-12-16 |
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| CN201520337023.1U Active CN204874161U (en) | 2015-05-24 | 2015-05-24 | Device of ammonia nitrogen in filtration liquid is got rid of to negative pressure ammonia still process method |
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Cited By (3)
| 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 |
| CN110372143A (en) * | 2019-07-19 | 2019-10-25 | 中节能工程技术研究院有限公司 | Landfill leachate physicochemical deamination pretreatment method and device |
| CN113800700A (en) * | 2020-06-11 | 2021-12-17 | 应城市新都化工有限责任公司 | High-efficient waste liquid ammonia still |
-
2015
- 2015-05-24 CN CN201520337023.1U patent/CN204874161U/en active Active
Cited By (3)
| 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 |
| CN110372143A (en) * | 2019-07-19 | 2019-10-25 | 中节能工程技术研究院有限公司 | Landfill leachate physicochemical deamination pretreatment method and device |
| CN113800700A (en) * | 2020-06-11 | 2021-12-17 | 应城市新都化工有限责任公司 | High-efficient waste liquid ammonia still |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 809 and 810, 8 / F, Chuangye building (Building 2, Xinghua Industrial Park), No.58, Second Street, Zhengzhou area (Jingkai), Henan pilot Free Trade Zone, Zhengzhou City, Henan Province, 450000 Patentee after: Shengao Lande Environmental Protection Technology Group Co.,Ltd. Address before: 450016 No.18, 7th floor, building 4, no.1319 hanghai East Road, Zhengzhou Economic Development Zone, Henan Province Patentee before: Land Environmental Protection Technology Group Co.,Ltd. |