CN203295311U - Anti-blocking anti-scaling pretreatment device for high-concentration ammonia nitrogen wastewater - Google Patents
Anti-blocking anti-scaling pretreatment device for high-concentration ammonia nitrogen wastewater Download PDFInfo
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- CN203295311U CN203295311U CN2013203354901U CN201320335490U CN203295311U CN 203295311 U CN203295311 U CN 203295311U CN 2013203354901 U CN2013203354901 U CN 2013203354901U CN 201320335490 U CN201320335490 U CN 201320335490U CN 203295311 U CN203295311 U CN 203295311U
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Abstract
The utility model relates to an anti-blocking anti-scaling pretreatment device for high-concentration ammonia nitrogen wastewater. The pretreatment device comprises a filter, wherein an ammonia nitrogen wastewater inlet and an alkaline liquid inlet are formed in a feeding pipeline in front of the filter; an anti-scaling agent inlet is formed in a discharging pipeline behind the filter. Compared with the prior art, the pretreatment device can effectively remove calcium, magnesium, heavy metal and suspended matters from the wastewater and can remedy the defect that scaling of the heavy metal and the suspended matters is difficult to avoid by singly adding the anti-scaling agent. The pretreatment device is simple in structure, does not need a power supply and a magnetic field, and achieves an anti-blocking anti-scaling effect which is more excellent than that of other methods in the aspect of ammonia removal by steam stripping.
Description
Technical field
The utility model relates to the ammonia nitrogenous wastewater treatment technology field, particularly relates to the anti-blocking scale inhibition pretreatment unit that a kind of high-concentration ammonia nitrogenous wastewater stripping is processed.
Background technology
The normal high-concentration ammonia nitrogenous wastewater that produces in chemical industry and hydrometallurgy process, more than its ammonia nitrogen concentration can reach 1000mg/L, the salt or the heavy metal that wherein often contain high density, for this type of waste water, normal employing vaporizing extract process removes ammonia nitrogen wherein, its principle is to utilize the relative volatility difference of water and ammonia, by heating, the ammonia in ammonia nitrogen waste water is separated from water with the form of ammonia in deammoniation tower.This process need is realized under the condition of alkalescence and heating,, if there is the easily scale forming matter such as calcium, magnesium, heavy metal and suspended substance in waste water, just, easily at the inner dirt that forms of deammoniation tower, stop up deammoniation tower.
For addressing this problem, using at present method more widely is to add Scale inhibitors, but general Scale inhibitors is only obvious to the scale effect of calcium, magnesium, and more limited for suspended substance scale inhibition effect in heavy metal and water.Other existing antiscaling devices such as electrolysis incrustation-inhibiting device, magnetic antiscaling device, flow disturbance antisludging equipment etc. are all undesirable to common scale forming matter scale inhibition effect in ammonia nitrogen waste water.Therefore, need a kind of anti-blocking scale inhibition pretreatment unit to carry out pre-treatment to the waste water that enters deammoniation tower, to prevent fouling in deammoniation tower.
The utility model content
The purpose of this utility model is to process a kind of anti-blocking scale inhibition pretreatment unit is provided for the high-concentration ammonia nitrogenous wastewater stripping.
For reaching this purpose, the utility model by the following technical solutions:
The anti-blocking scale inhibition pretreatment unit of a kind of high-concentration ammonia nitrogenous wastewater, described pretreatment unit comprises strainer; Be provided with ammonia nitrogen waste water import and alkali lye import on the feed pipe before described strainer; Be provided with the Scale inhibitors import on discharge pipe after described strainer.
At first the utility model mixes with ammonia nitrogen waste water alkali lye in feed pipe, make high-concentration Ca magnesium in waste water and heavy metal form precipitation, then passes through the filtration of strainer, makes precipitation and moisture from, outflow filter.Exist a small amount of solvability calcium magnesium in water this moment, enters deammoniation tower after adding Scale inhibitors, thereby realize the anti-blocking scale inhibition of ammonia nitrogen waste water in deammoniation tower.
Be provided with the feed pipe mixing tank on described feed pipe; Be communicated with ammonia nitrogen waste water import and alkali lye import before described feed pipe mixing tank.Those skilled in the art can install threeway outside the feed pipe mixing tank, be used for being communicated with ammonia nitrogen waste water import and alkali lye import.The utility model connects the feed pipe mixing tank after ammonia nitrogen waste water import and alkali lye import, ammonia nitrogen waste water is mixed with alkali liquor efficient, makes high-concentration Ca magnesium and heavy metal in waste water form precipitation as much as possible.
The Scale inhibitors import first is set sets out again the pipe material mixing tank on described discharge pipe; Described discharge pipe mixing tank connects the pipeline of going to deammoniation tower.Those skilled in the art can install threeway at described filter outlet, are used for connecting Scale inhibitors import and discharge pipe mixing tank, and the discharge pipe mixer outlet connects the pipeline of going to deammoniation tower.The effect of discharge pipe mixing tank is to make the waste water that filters out fully to mix with Scale inhibitors, enters deammoniation tower after further removing solvability calcium magnesium, improves anti-blocking scale inhibition effect.
Strainer described in the utility model can be selected by those skilled in the art from prior art, the design that can realize removing the precipitation that ammonia nitrogen waste water described in the utility model and alkali lye forms all can.Preferably, be provided with filter screen in described strainer.The aperture of described filter screen is 50～400 orders, is preferably 150 orders.
Preferred design of the present utility model is: described feed pipe is positioned at the below of described strainer, and discharge pipe is positioned at the top of described strainer.Feed pipe is located at the below of strainer, is made the mixing of ammonia nitrogen waste water and alkali lye more abundant, water level rises after strainer filters, and from the discharge pipe of top, flows out.
Be provided with the clear water import on described strainer top, be used for operation for some time post-flush strainer (specifically can be filter screen).
Be provided with slag-drip opening in described strainer bottom, be used for the waste residue that discharging develops.
Be provided with hand hole at described filter cartridge body side surface, carry out the labor cleaning while being used for serious the obstruction.
Ammonia nitrogen concentration in high-concentration ammonia nitrogenous wastewater described in the utility model is greater than 1000mg/L.Described alkali lye preferred mass concentration is 1～52% sodium hydroxide or sodium carbonate solution.
Utilize the anti-blocking scale inhibition pretreatment unit of high-concentration ammonia nitrogenous wastewater described in the utility model to carry out pretreated method to high-concentration ammonia nitrogenous wastewater as follows: after ammonia nitrogen waste water and alkali lye are mixed by the feed pipe mixing tank on feed pipe from ammonia nitrogen waste water import and alkali lye import respectively, to enter strainer; In mixing process, the high-concentration Ca magnesium in waste water and heavy metal form precipitation, and after entering strainer, the precipitation of formation and the suspended substance in ammonia nitrogen waste water, by filtering, separate with waste water; In the waste water of outflow filter, there is a small amount of solvability calcium magnesium, the Scale inhibitors that adds with the Scale inhibitors import fully mixes in the discharge pipe mixing tank, remove residue calcium magnesium, finally enter deammoniation tower, thereby realize the anti-blocking scale inhibition of ammonia nitrogen waste water in deammoniation tower, complete the pre-treatment of high-concentration ammonia nitrogenous wastewater.
Compare with the prior art scheme, the utlity model has following beneficial effect:
The utility model forms by add alkali lye in high-concentration ammonia nitrogenous wastewater the preprocessing process that precipitates and filter, effectively remove calcium, magnesium, heavy metal and suspended substance in waste water, made up independent interpolation Scale inhibitors and be difficult to avoid the shortcoming of heavy metal and suspended substance fouling.The utility model apparatus structure is simple, need not power supply, magnetic field, and the anti-blocking scale inhibition successful in the stripping deamination is better than additive method.
Description of drawings
Fig. 1 is the structural representation of the utility model specific embodiment.
In figure: the import of 1-ammonia nitrogen waste water; The import of 2-alkali lye; The import of 3-Scale inhibitors; 4-feed pipe mixing tank; 5-discharge pipe mixing tank; The 6-filter screen; The import of 7-clear water; The 8-slag-drip opening; The 9-hand hole; 10-goes to the pipeline of deammoniation tower.
Below the utility model is further described.But following example is only simple and easy example of the present utility model, does not represent or limits rights protection scope of the present utility model, and protection domain of the present utility model is as the criterion with claims.
Embodiment
For the utility model is described better, be convenient to understand the technical solution of the utility model, typical but non-limiting embodiment of the present utility model is as follows:
As shown in Figure 1, the anti-blocking scale inhibition pretreatment unit of a kind of high-concentration ammonia nitrogenous wastewater, described pretreatment unit comprises strainer; Be provided with ammonia nitrogen waste water import 1 and alkali lye import 2 on the feed pipe before described strainer; Be provided with Scale inhibitors import 3 on discharge pipe after described strainer.
Be provided with feed pipe mixing tank 4 on described feed pipe; Be communicated with ammonia nitrogen waste water import 1 and alkali lye import 2 before described feed pipe mixing tank 4.
Be provided with filter screen 6 in described strainer.The aperture of described filter screen 6 is 50～400 orders, and the aperture that is preferably described filter screen is 150 orders.
Described feed pipe is positioned at the below of described strainer, and discharge pipe is positioned at the top of described strainer.
Be provided with clear water import 7 on described strainer top.
Be provided with slag-drip opening 8 in described strainer bottom.
Be provided with hand hole 9 at described filter cartridge body side surface.
The method of utilizing the anti-blocking scale inhibition pretreatment unit of above-mentioned high-concentration ammonia nitrogenous wastewater to process high-concentration ammonia nitrogenous wastewater is exemplified below:
Contain 570mg/L Ca in pending ammonia nitrogen waste water
2+, 110mg/L Mg
2+, 52mg/L Cu
2+With the 36mg/L suspended substance, treatment capacity is 10m
3/ h.Operating procedure is as follows:
1) alkali lye uses 10% sodium carbonate solution, with ammonia nitrogen waste water, enters strainer after feed pipe mixing tank 4 mixes;
2) 150 mesh filter screens are installed in strainer, suspended substance and throw out are filtered out, water outlet and Scale inhibitors enter deammoniation tower after discharge pipe mixing tank 5;
3) closed ammonia nitrogen waste water in every 48 hours and import and export, open bottom slag-drip opening 8, from top clear water import 7, put into clear water flushing filtering net 6, waste residue is discharged from bottom;
4) for realizing operation continuously, employing two covering devices mode in parallel, the using and the reserved connects, and switching in every 48 hours once;
5) if filter net jam is serious, while being difficult to rinse well, open hand hole 9, carry out the labor cleaning.
Applicant's statement, the utility model illustrates detailed construction feature of the present utility model and method of work by above-described embodiment, but the utility model is not limited to above-mentioned detailed construction feature and method of work, does not mean that namely the utility model must rely on above-mentioned detailed construction feature and method of work could be implemented.The person of ordinary skill in the field should understand; to any improvement of the present utility model; to the increase of the equivalence replacement of the selected parts of the utility model and accessory, the selection of concrete mode etc., within all dropping on protection domain of the present utility model and open scope.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that in the situation that do not break away from the utility model principle and spirit can be carried out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is by claims and be equal to and limit.
Claims (10)
1. the anti-blocking scale inhibition pretreatment unit of high-concentration ammonia nitrogenous wastewater, is characterized in that, described pretreatment unit comprises strainer; Be provided with ammonia nitrogen waste water import (1) and alkali lye import (2) on the feed pipe before described strainer; Be provided with Scale inhibitors import (3) on discharge pipe after described strainer.
2. pretreatment unit as claimed in claim 1, is characterized in that, is provided with feed pipe mixing tank (4) on described feed pipe; Described feed pipe mixing tank (4) is communicated with ammonia nitrogen waste water import (1) and alkali lye import (2) before.
3. pretreatment unit as claimed in claim 1 or 2, is characterized in that, Scale inhibitors import (3) first is set sets out pipe material mixing tank (5) again on described discharge pipe; Described discharge pipe mixing tank (5) connects the pipeline (10) of going to deammoniation tower.
4. pretreatment unit as claimed in claim 1, is characterized in that, is provided with filter screen (6) in described strainer.
5. pretreatment unit as claimed in claim 4, is characterized in that, the aperture of described filter screen (6) is 50～400 orders.
6. pretreatment unit as described in claim 4 or 5, is characterized in that, the aperture of described filter screen (6) is 150 orders.
7. pretreatment unit as claimed in claim 1 or 2, is characterized in that, described feed pipe is positioned at the below of described strainer, and discharge pipe is positioned at the top of described strainer.
8. pretreatment unit as claimed in claim 7, is characterized in that, on described strainer top, is provided with clear water import (7).
9. pretreatment unit as claimed in claim 8, is characterized in that, in described strainer bottom, is provided with slag-drip opening (8).
10. pretreatment unit as claimed in claim 1, is characterized in that, at described filter cartridge body side surface, is provided with hand hole (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203354901U CN203295311U (en) | 2013-06-09 | 2013-06-09 | Anti-blocking anti-scaling pretreatment device for high-concentration ammonia nitrogen wastewater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203354901U CN203295311U (en) | 2013-06-09 | 2013-06-09 | Anti-blocking anti-scaling pretreatment device for high-concentration ammonia nitrogen wastewater |
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| Publication Number | Publication Date |
|---|---|
| CN203295311U true CN203295311U (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013203354901U Expired - Lifetime CN203295311U (en) | 2013-06-09 | 2013-06-09 | Anti-blocking anti-scaling pretreatment device for high-concentration ammonia nitrogen wastewater |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103723861A (en) * | 2013-12-27 | 2014-04-16 | 武汉飞博乐环保工程有限公司 | Filter device |
| CN106115882A (en) * | 2016-08-18 | 2016-11-16 | 苏州首创嘉净环保科技股份有限公司 | A kind of plunger type screen filtration device of pretreatment livestock breeding wastewater |
| CN108996580A (en) * | 2018-08-16 | 2018-12-14 | 成渝钒钛科技有限公司 | Reduce the method and process for extracting vanadium of ammonia-nitrogen content in vanadium extracting waste water |
-
2013
- 2013-06-09 CN CN2013203354901U patent/CN203295311U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103723861A (en) * | 2013-12-27 | 2014-04-16 | 武汉飞博乐环保工程有限公司 | Filter device |
| CN106115882A (en) * | 2016-08-18 | 2016-11-16 | 苏州首创嘉净环保科技股份有限公司 | A kind of plunger type screen filtration device of pretreatment livestock breeding wastewater |
| CN108996580A (en) * | 2018-08-16 | 2018-12-14 | 成渝钒钛科技有限公司 | Reduce the method and process for extracting vanadium of ammonia-nitrogen content in vanadium extracting waste water |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20131120 |
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| CX01 | Expiry of patent term |