CN214513727U - Processing system for removing ammonia nitrogen in steam in multi-flow mode - Google Patents
Processing system for removing ammonia nitrogen in steam in multi-flow mode Download PDFInfo
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- CN214513727U CN214513727U CN202023103883.9U CN202023103883U CN214513727U CN 214513727 U CN214513727 U CN 214513727U CN 202023103883 U CN202023103883 U CN 202023103883U CN 214513727 U CN214513727 U CN 214513727U
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Abstract
The utility model provides a multi-flow treatment system for removing ammonia nitrogen in steam, which comprises an acid washing gas tower, a first acid tower circulating pump, a second acid tower circulating pump, an acid tower slurry pump, an automatic acid supplementing device, a first acid tower spraying device, a second acid tower spraying device, a liquid level measuring device, a temperature measuring device, an acid tower demister and a pH measuring device; the acid gas scrubber comprises N acid tower steam passes, wherein N is an even number greater than 4; the bottoms of the first acid tower steam pass and the second acid tower steam pass are communicated, the tops of the second acid tower steam pass and the third acid tower steam pass are communicated … …, and the bottoms of the N-1 acid tower steam pass and the N acid tower steam pass are communicated; packing layers are arranged in the first acid tower steam pass, the second acid tower steam pass … … and the Nth acid tower steam pass; the system has the advantages of energy conservation, environmental protection, high efficiency, low cost, small occupied area and large processing capacity.
Description
Technical Field
The utility model relates to a technique of getting rid of ammonia nitrogen in the steam especially relates to a processing system of ammonia nitrogen in steam is got rid of to many flow charts.
Background
In the thirteen-five period, water is required to be fully recognized as treasure, water body treatment in China needs to be mainly realized that water pollution control must be realized from source decrement, and sewage and waste water are expensive resources, and the recycling and energy regeneration of the sewage and the waste water are realized. Meanwhile, the research and application of sewage and wastewater treatment technologies are emphasized, and the water resource regeneration utilization rate is improved. In terms of the water shortage problem of Beijing, the recycling rate of the Beijing sewage is less than 50 percent, while the water recycling rate of Israel is up to 90 percent similar to that of Beijing, and the export of agricultural products of Israel is realized. The importance of water resource recycling is fully reflected.
Water is a source of life, and no ecological industry or ecological cities exist without water conservation and protection. With the acceleration of the urbanization process of China, the industrial development is rapid, the urban population is continuously expanded and the scale is continuously enlarged, and the generated various waste water is increased. Such as kitchen waste water, domestic sewage, coking waste water, industrial sewage, landfill leachate and the like. The treatment difficulty is high COD and high ammonia nitrogen.
The method for removing COD and ammonia nitrogen in the current sewage treatment process in China is carried out under the condition of liquid.
The ion exchange process depends on the exchange adsorption of COD and ammonia nitrogen in the distilled water by ion exchange resin, so that the effluent can reach the standard, but the resin exchange capacity is limited, the treatment capacity is extremely low, and the resin which cannot be timely reduced after supersaturation can be punctured, so that the device and the device cannot stably and continuously produce. And the cost is high when the resin needs to be regenerated after saturation, and the biggest problem is that a large amount of waste liquid containing ammonia nitrogen and COD is generated in the resin reduction process, and secondary pollution is caused.
The DTRO process completely depends on a high-pressure membrane for forced filtration, has high operation cost, low water yield, high concentrated solution content of 45-55 percent, high operation difficulty in winter and the like, and has the problems that later-stage operation accessories and membrane components are easy to damage and are high in price.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a processing system that ammonia nitrogen was got rid of to the multi-flow formula in the steam to the method of getting rid of ammonia nitrogen in present sewage treatment process all goes on under the condition of liquid, leads to the low, the high scheduling problem of running cost of handling capacity, and this system has energy-conservation, environmental protection, high efficiency, with low costs, takes up an area of advantage little, that the handling capacity is big.
In order to achieve the above object, the utility model adopts the following technical scheme: a multi-flow treatment system for removing ammonia nitrogen in steam comprises an acid washing gas tower, a first acid tower circulating pump, a second acid tower circulating pump, an acid tower slurry pump, an automatic acid supplementing device, a first acid tower spraying device, a second acid tower spraying device, a liquid level measuring device, a temperature measuring device, an acid tower demister and a pH measuring device; the acid gas scrubber comprises N acid tower steam passes, wherein N is an even number greater than 4; the bottoms of the first acid tower steam pass and the second acid tower steam pass are communicated, the tops of the second acid tower steam pass and the third acid tower steam pass are communicated … …, and the bottoms of the N-1 acid tower steam pass and the N acid tower steam pass are communicated; packing layers are arranged in the first acid tower steam pass, the second acid tower steam pass … … and the Nth acid tower steam pass;
the first acid tower spraying device is arranged in a first acid tower steam process and an … … (the N-1) th acid tower steam process of a second acid tower steam process, and the first acid tower circulating pump is communicated with the first acid tower spraying device; the second acid tower spraying device is arranged in the steam course of the Nth acid tower, and the second acid tower circulating pump is communicated with the second acid tower spraying device; the automatic acid supplementing device is respectively communicated with the first acid tower spraying device and the second acid tower spraying device;
the device comprises a first acid tower, a second acid tower, a third acid tower, a fourth acid tower, a fifth acid tower, a sixth acid tower, a fifth acid tower, a sixth acid tower, a sixth acid tower, a.
Further, the number of N is 4 to 10, preferably 4.
Further, the filler is PVDF garland filler.
Further, the first acid tower spray device and the second acid tower spray device comprise spiral solid conical nozzles.
Further, the acid tower demister is independently arranged and is not limited by the type of the acid tower, and can be arranged on a pipeline.
Further, the operating temperature of the treatment system is 60 ℃ to 115 ℃.
Further, a steam baffle is arranged between the steam course of the N-1 acid tower and the bottom of the steam course of the N acid tower.
Further, the automatic acid supplementing device and the pH measuring device are respectively electrically connected with the control system.
The utility model discloses processing system of ammonia nitrogen in steam is got rid of to multiple flow form compares with prior art and has following advantage:
1) the utility model discloses the journey number that processing system's of ammonia nitrogen in the steam was got rid of to multiple flow form first acid tower spray set and second acid tower spray set belonged to is certain, and first acid tower spray set sets up in first acid tower steam journey, second acid tower steam journey … … N-1 acid tower steam journey, and second acid tower spray set is in N acid tower steam journey. The arrangement not only saves the cost, but also reduces the subsequent use amount of sulfuric acid while ensuring the treatment effect.
2) The utility model discloses ammonia nitrogen's among the steam processing system is got rid of to multiple flow form operating temperature can be at any one temperature point between 60-115 ℃, and the operating temperature scope is narrow, and only the pollutant under this evaporation temperature point just can enter into steam, can ensure high-quality play water.
3) The utility model discloses be equipped with temperature measurement system on the acid pickling gas tower body of processing system of ammonia nitrogen in the steam is got rid of to the multiple flow formula, through independent temperature measurement system, can monitor entire system's operation, makes things convenient for statistics and analysis of parameter.
4) The utility model discloses be equipped with the solid taper nozzle of spiral in the processing system's of ammonia nitrogen pickling gas tower in the steam is got rid of to many streams formula, and this nozzle spraying shape is circular, and the distribution is even, and pressure and flow application scope are wide, and unique blade design and large-traffic passageway have guaranteed out the control of liquid and even spraying distribution.
5) The utility model discloses the processing system's of ammonia nitrogen pickling gas tower in steam is got rid of to multiple flow form is equipped with automatic tonifying acid system, automatic tonifying acid system according to the automatic income volume of adjusting acid of special survey pH system, the waste of effective control cost. The degree of automation is high, reduces manual operation, can realize unmanned on duty.
To sum up, the utility model discloses the processing system of ammonia nitrogen in steam is got rid of to many flowing forms, mainly to among the current sewage treatment COD, the getting rid of ammonia nitrogen not thoroughly, not up to standard, can't satisfy the requirement of high standard, the utility model discloses a high temperature resistant, corrosion-resistant material has solved the problem of acid corrosion, simultaneously the utility model relates to a physical chemistry process can not produce secondary pollution.
Drawings
FIG. 1 is a schematic view of a multi-flow ammonia nitrogen removal treatment system of the present invention;
FIG. 2 is a flow chart of the multi-flow ammonia nitrogen removal treatment system of the present invention.
Detailed Description
The invention is further illustrated below with reference to the following examples:
example 1
The embodiment discloses a multi-flow treatment system for removing ammonia nitrogen in steam, which comprises an acid washing gas tower 23, a first acid tower circulating pump 24, a second acid tower circulating pump 25, an acid tower slurry pump 27, an automatic acid supplementing device 26, a first acid tower spraying device 9, a second acid tower spraying device 11, a first liquid level measuring device 17, a second liquid level measuring device 22, a first temperature measuring device 18, a second temperature measuring device 21, an acid tower demister 6, a first pH measuring device 19 and a second pH measuring device 20; the acid gas scrubber comprises 4 acid tower vapor passes; the bottoms of the first acid tower steam pass and the second acid tower steam pass are communicated, the top of the second acid tower steam pass is communicated with the top of the third acid tower steam pass, and the bottom of the 3 rd acid tower steam pass is communicated with the bottom of the 4 th acid tower steam pass; a steam baffle 15 is arranged between the bottoms of the third acid tower steam pass and the fourth acid tower steam pass. A first packing layer 12, a second packing layer 13, a third packing layer 14 and a fourth packing layer 16 are sequentially arranged in the first acid tower steam process, the second acid tower steam process, the third acid tower steam process and the fourth acid tower steam process; the filler in the filler layer is PVDF garland filler.
The first acid tower spraying device 9 is arranged in the first acid tower steam course 2, the second acid tower steam course 3 and the third acid tower steam course 4, and the first acid tower circulating pump 24 is communicated with the first acid tower spraying device 9; the second acid tower spraying device 11 is arranged in the fourth acid tower steam course 7, and the second acid tower circulating pump 25 is communicated with the second acid tower spraying device 11; the automatic acid supplementing device 26 is respectively communicated with the first acid tower spraying device 9 and the second acid tower spraying device 11, and specifically, the automatic acid supplementing device 26, the first pH measuring device 19 and the second pH measuring device 20 are respectively electrically connected with the control system. The first acid tower spray device and the second acid tower spray device comprise spiral solid conical nozzles 10.
The top of the first acid tower steam course 2 is provided with a steam inlet 1, the top of the fourth acid tower steam course 7 is provided with a steam outlet 5, the steam outlet 5 is communicated with an inlet of an acid tower demister 6, the lower part of the first acid tower steam course 2 is respectively provided with a first pH measuring device 19, a first temperature measuring device 18 and a first liquid level measuring device 17, and the lower part of the fourth acid tower steam course is respectively provided with a second pH measuring device 20, a second temperature measuring device 21 and a second liquid level measuring device 22. And a third liquid level measuring device 8 is arranged at the upper part of the steam course of the fourth acid tower.
The operating temperature of the treatment system is 60-115 ℃.
The working principle of the treatment system for removing ammonia nitrogen in steam by multiple flow forms in the embodiment is as follows: steam to be treated enters an acid washing gas tower 23 through a steam inlet 1, firstly enters a first acid tower steam pass 2 to react with acid liquor sprayed by an acid first acid tower spray device 9, then passes through a first packing layer 12 of the first acid tower steam pass 2 from top to bottom in the first acid tower steam pass 2, then enters a second acid tower steam pass 3, passes through a second packing layer 13 of the second acid tower steam pass 3 from bottom to top in the second acid tower steam pass 3, then reacts with the acid liquor sprayed by the acid first acid tower spray device 9, then enters a third acid tower steam pass 4, passes through a third packing layer 14 of the third acid tower steam pass from top to bottom in the third acid tower steam pass 4 and reacts with the acid liquor sprayed by the acid first acid tower spray device 9, then enters a fourth acid tower steam pass 7, and passes through a steam baffle 15 before entering the fourth acid tower steam pass 7, liquid in the steam is intercepted, then the steam enters a fourth acid tower steam course 7, the steam passes through a fourth packing layer 16 of the fourth acid tower steam course from bottom to top in the fourth acid tower steam course 7 and then reacts with acid liquor sprayed by an acid second acid tower spray device 11, and the reacted steam enters an acid tower demister 6 through a steam outlet 5 to further remove liquid carried in the steam.
The main use in the acid washing gas tower 23 is sulfuric acid, dilute sulfuric acid is continuously recycled through a first acid tower circulating pump 24 and a second acid tower circulating pump 25 by utilizing the chemical reaction of the sulfuric acid and ammonia, the dilute sulfuric acid reacts with ammonia in steam to generate ammonium sulfate, and the ammonium sulfate reaches a saturated state along with the continuous reaction and is crystallized and separated out in a lower cylinder of the acid washing gas tower 23. Wherein the second acid tower circulating pump 25 only sprays the acid liquor in the fourth acid tower steam course 7, and the acid is always better in quality.
In the evaporation process, along with the reaction, the pH value of the spraying liquid can be monitored through the first pH measuring device 19 and the second pH measuring device 20 of the acid washing gas tower 23, the pH value of the spraying liquid rises to indicate that the acid liquid and the steam react, the acid liquid is gradually consumed along with the reaction, in order to maintain the dynamic balance between the acid amount and pollutants in the steam, along with the reaction, automatically controlling the acid supplementing device 26 according to the first pH measuring device 19 and the second pH measuring device 20 of the acid washing gas tower 23, automatically supplementing acid liquor into the acid washing gas tower 23 to ensure that the reaction is continuously carried out, in the reaction process, the temperature change in the reaction process is monitored according to the first temperature measuring device 18 and the second temperature measuring device 21 on the acid scrubber 23, the first temperature measuring device 18 and the second temperature measuring device 21 are beneficial to collecting engineering control data through data analysis influence reasons and result.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (8)
1. A multi-flow treatment system for removing ammonia nitrogen in steam is characterized by comprising an acid washing gas tower, a first acid tower circulating pump, a second acid tower circulating pump, an acid tower slurry pump, an automatic acid supplementing device, a first acid tower spraying device, a second acid tower spraying device, a liquid level measuring device, a temperature measuring device, an acid tower demister and a pH measuring device; the acid gas scrubber comprises N acid tower steam passes, wherein N is an even number greater than 4; the bottoms of the first acid tower steam pass and the second acid tower steam pass are communicated, the tops of the second acid tower steam pass and the third acid tower steam pass are communicated … …, and the bottoms of the N-1 acid tower steam pass and the N acid tower steam pass are communicated; packing layers are arranged in the first acid tower steam pass, the second acid tower steam pass … … and the Nth acid tower steam pass;
the first acid tower spraying device is arranged in a first acid tower steam process and an … … (the N-1) th acid tower steam process of a second acid tower steam process, and the first acid tower circulating pump is communicated with the first acid tower spraying device; the second acid tower spraying device is arranged in the steam course of the Nth acid tower, and the second acid tower circulating pump is communicated with the second acid tower spraying device; the automatic acid supplementing device is respectively communicated with the first acid tower spraying device and the second acid tower spraying device;
the device comprises a first acid tower, a second acid tower, a third acid tower, a fourth acid tower, a fifth acid tower, a sixth acid tower, a fifth acid tower, a sixth acid tower, a sixth acid tower, a.
2. The multiple flow format ammonia nitrogen removal process system of claim 1, wherein said number of N ranges from 4 to 10.
3. The multiple flow format treatment system for removing ammonia nitrogen from steam as claimed in claim 1, wherein the packing is a garland packing of PVDF.
4. The multiple flow pattern treatment system for removing ammonia nitrogen from steam of claim 1, wherein the first acid tower spray device and the second acid tower spray device comprise spiral solid conical nozzles.
5. The multiple flow pattern treatment system for removing ammonia nitrogen in steam according to claim 1, wherein the acid tower demister is independently arranged.
6. The multiple flow format treatment system for removing ammonia nitrogen from steam as claimed in claim 1, wherein the operating temperature of the treatment system is 60 ℃ -115 ℃.
7. The multiple flow pattern treatment system for removing ammonia nitrogen in steam according to claim 1, wherein a steam baffle is arranged between the bottom of the steam course of the N-1 acid tower and the bottom of the steam course of the N acid tower.
8. The multiple flow format treatment system for removing ammonia nitrogen from steam according to claim 1, wherein the automatic acid supplementing device and the pH measuring device are respectively electrically connected with the control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023103883.9U CN214513727U (en) | 2020-12-21 | 2020-12-21 | Processing system for removing ammonia nitrogen in steam in multi-flow mode |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023103883.9U CN214513727U (en) | 2020-12-21 | 2020-12-21 | Processing system for removing ammonia nitrogen in steam in multi-flow mode |
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| Publication Number | Publication Date |
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| CN214513727U true CN214513727U (en) | 2021-10-29 |
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| CN202023103883.9U Active CN214513727U (en) | 2020-12-21 | 2020-12-21 | Processing system for removing ammonia nitrogen in steam in multi-flow mode |
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