CN218359196U - Serialization device of ammonium sulfate is prepared to by-product dilute sulfuric acid - Google Patents
Serialization device of ammonium sulfate is prepared to by-product dilute sulfuric acid Download PDFInfo
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- CN218359196U CN218359196U CN202221710238.XU CN202221710238U CN218359196U CN 218359196 U CN218359196 U CN 218359196U CN 202221710238 U CN202221710238 U CN 202221710238U CN 218359196 U CN218359196 U CN 218359196U
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Abstract
The utility model discloses a serialization device of ammonium sulfate is prepared to by-product dilute sulfuric acid, including one-level ammonia acid blender, second grade ammonia acid blender, stirring reation kettle, reation kettle discharge pump, ammonia absorption tower, ammonia absorption circulating pump, one-level liquid ammonia feeding governing valve, one-level ammonia feeding flowmeter, second grade liquid ammonia feeding governing valve, second grade ammonia feeding flowmeter, proportional control ware, reation kettle thermometer, cooling water export governing valve, reation kettle ejection of compact flowmeter, ammonia absorption tower bottom level meter, sulphuric acid feeding governing valve, sulphuric acid feeding flowmeter, absorption tower ejection of compact governing valve and absorption tower ejection of compact flowmeter, the beneficial effects of the utility model are that: the whole device forms 2-stage static mixing reaction and one-stage stirring reaction, and is additionally provided with a heat removal cooling medium, so that the stability of the reaction is greatly improved, the accurate feeding of sulfuric acid and ammonia is realized by means of fully utilizing accurate instrument regulating valves and the like, the escaped ammonia is absorbed by utilizing dilute sulfuric acid, and the escape of the ammonia is avoided.
Description
Technical Field
The utility model relates to a utilization of resources technical field of spent acid specifically is a serialization device of ammonium sulfate is prepared to by-product dilute sulfuric acid.
Background
In industrial production, the industries with the quantity of the byproduct dilute sulfuric acid exceeding 1000 million tons each year mainly comprise the sulfuric acid method titanium dioxide industry, the sulfuric acid industry, the non-ferrous metal smelting industry, the fine chemical industry, the steel pickling industry and the like. The dilute sulfuric acid as the byproduct of fine chemical industry has complicated components, small amount of individual enterprises and various varieties, and the main industries of the dilute sulfuric acid comprise the dye intermediate industry, the nitration industry, the storage battery industry, the chlor-alkali industry, the hydrogen fluoride industry, the alkylation industry, the ion exchange resin industry, the pesticide industry and the like.
The method for treating the by-product dilute sulfuric acid is various and mainly comprises the following steps:
1. the concentration method is a mature and widely-applied dilute sulfuric acid treatment method, is suitable for treating dilute sulfuric acid with small discharge amount and less impurities, and has the following defects: the corrosivity is strong, and the equipment investment is large; the energy consumption and the treatment cost are high in the concentration process; impurities in the dilute sulfuric acid cannot be removed, and the concentrated sulfuric acid has low quality and is difficult to recycle;
2. the blending burning method is that high-concentration organic dilute sulphuric acid is directly sprayed into a kiln for making acid by gypsum or a fluidized bed furnace for smelting acid, the high-concentration organic dilute sulphuric acid is processed by an acid making device, but the concentration of the dilute sulphuric acid is about 5-30 percent generally, and the dilute sulphuric acid enters the device, so that the energy consumption is extremely high, and the application of the dilute sulphuric acid is limited;
3. the lime neutralization method is to neutralize dilute sulfuric acid by using lime or carbide slag as an alkaline medium, but generates a large amount of 2-water calcium sulfate and the like, and if the lime or carbide slag is not utilized, the solid waste amount is very large;
4. the resource utilization is that dilute sulphuric acid is purified by using media such as ozone, hydrogen peroxide or active carbon, and then liquid ammonia is added for reaction to produce ammonium sulfate products, and the method is widely used in industries such as dye, medicine and pesticide at present.
However, some enterprises adopt an intermittent production mode to convey the dilute acid to the reaction kettle, then introduce liquid ammonia at the bottom, and react while stirring to achieve complete reaction and then evaporate, and a plurality of reaction kettles are switched for use.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a serialization device of ammonium sulfate is prepared to by-product dilute sulfuric acid, the drawback of liquid ammonia and sulphuric acid reaction intermittent type operation is overcome to the target, adopts 2 grades of static mixing, and steps such as by-product gas secondary washing absorption and accurate instrument control solve the problem of proposing among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a continuous device for preparing ammonium sulfate from by-product dilute sulfuric acid comprises a primary ammonia acid mixer, a secondary ammonia acid mixer, a stirring reaction kettle, a reaction kettle discharge pump, an ammonia absorption tower, an ammonia absorption circulating pump, a primary liquid ammonia feed regulating valve, a primary ammonia feed flowmeter, a secondary liquid ammonia feed regulating valve, a secondary ammonia feed flowmeter, a proportion regulator, a reaction kettle thermometer, a cooling water outlet regulating valve, a reaction kettle discharge flowmeter, an ammonia absorption tower bottom liquid level meter, a sulfuric acid feed regulating valve, a sulfuric acid feed flowmeter, an absorption tower discharge regulating valve and an absorption tower discharge flowmeter, wherein an outlet of the primary ammonia acid mixer is connected with an inlet of the secondary ammonia acid mixer, an outlet of the secondary ammonia acid mixer is connected with an inlet of the top of the stirring reaction kettle, an outlet of the bottom of the stirring reaction kettle is connected with an inlet of the reaction kettle discharge pump, the reaction kettle discharge pump is sent to an evaporation process, an outlet of the top of the stirring reaction kettle is connected with a gas inlet of the bottom of the ammonia absorption tower, a liquid outlet of the ammonia absorption tower is connected with an inlet of the primary ammonia absorption circulating pump;
one-level liquid ammonia feeding governing valve and one-level ammonia feeding flowmeter all are in on the liquid ammonia pipeline of liquid ammonia to one-level ammonia acid blender, second grade liquid ammonia feeding governing valve and second grade ammonia feeding flowmeter all are in on the liquid ammonia pipeline of liquid ammonia to second grade ammonia acid blender, the reation kettle thermometer is in the top of stirring reation kettle, cooling water outlet governing valve is in on stirring reation kettle's the cooling water outlet pipeline, reation kettle ejection of compact governing valve and reation kettle ejection of compact flowmeter all are in on stirring reation kettle bottom outlet pipeline, ammonia absorption tower bottom liquid level meter is in the tower bottom of ammonia absorption tower, sulphuric acid feeding governing valve and sulphuric acid feeding flowmeter all are in on the external sulphuric acid to the inlet pipe line at ammonia absorption tower top, absorption tower ejection of compact governing valve and absorption tower ejection of compact flowmeter all are in on the pipeline of the export of ammonia absorption circulating pump to the entry of one-level ammonia acid blender.
Preferably, the primary amino acid mixer, the secondary amino acid mixer, the stirring reaction kettle, the reaction kettle discharge pump, the ammonia absorption tower and the ammonia absorption circulating pump form reaction synthesis equipment.
Preferably, one-level liquid ammonia feeding governing valve, one-level ammonia feeding flowmeter, second grade liquid ammonia feeding governing valve, second grade ammonia feeding flowmeter, proportion regulator, reation kettle thermometer, cooling water outlet governing valve, reation kettle ejection of compact flowmeter, ammonia absorption tower bottom level gauge, sulphuric acid feeding governing valve, sulphuric acid feeding flowmeter, absorption tower ejection of compact governing valve and absorption tower ejection of compact flowmeter have constituted instrument control system.
Preferably, the stirring reaction kettle is of a jacket structure.
Preferably, the primary liquid ammonia feed regulating valve, the primary ammonia feed flow meter, the secondary liquid ammonia feed regulating valve, the secondary ammonia feed flow meter, the proportional regulator, the sulfuric acid feed regulating valve and the sulfuric acid feed flow meter are combined to form a proportional regulating structure.
Compared with the prior art, the beneficial effects of the utility model are that: the whole device forms 2-stage static mixing reaction and one-stage stirring reaction, and is additionally provided with a heat removal cooling medium, so that the stability of the reaction is greatly improved, accurate feeding of sulfuric acid and ammonia is realized by means of fully utilizing accurate instrument regulating valves and the like, escaped ammonia is absorbed by utilizing dilute sulfuric acid, and the escape of ammonia is avoided.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1. a primary amino acid mixer; 2. a secondary amino acid mixer; 3. stirring the reaction kettle; 4. a discharging pump of the reaction kettle; 5. an ammonia absorption tower; 6. an ammonia absorption circulation pump; m1, a primary liquid ammonia feed adjusting valve; m2, a primary ammonia feed flow meter; m3, a secondary liquid ammonia feed regulating valve; m4, a secondary ammonia feed flow meter; m5, a proportional regulator; m6, a reaction kettle thermometer; m7, a cooling water outlet regulating valve; m8, a discharge regulating valve of the reaction kettle; m9, a discharge flowmeter of the reaction kettle; m10, an ammonia absorption tower bottom liquid level meter; m11, a sulfuric acid feed regulating valve; m12, a sulfuric acid feed flow meter; m13, an absorption tower discharge regulating valve; m14, an absorption tower discharge flowmeter.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a serialization device for preparing ammonium sulfate from byproduct dilute sulfuric acid comprises a primary ammonia acid mixer 1, a secondary ammonia acid mixer 2, a stirring reaction kettle 3, a reaction kettle discharge pump 4, an ammonia absorption tower 5, an ammonia absorption circulating pump 6, a primary liquid ammonia feeding regulating valve M1, a primary ammonia feeding flow meter M2, a secondary liquid ammonia feeding regulating valve M3, a secondary ammonia feeding flow meter M4, a proportioner M5, a reaction kettle thermometer M6, a cooling water outlet regulating valve M7, a reaction kettle discharge regulating valve M8, a reaction kettle discharge flow meter M9, an ammonia absorption tower bottom liquid level meter M10, a sulfuric acid feeding regulating valve M11, a sulfuric acid feeding flow meter M12, an absorption tower discharge regulating valve M13 and an absorption tower discharge flow meter M14, wherein an outlet of the primary ammonia acid mixer 1 is connected with an inlet of the secondary ammonia acid mixer 2, an outlet of the secondary ammonia acid mixer 2 is connected with an inlet at the top of the stirring reaction kettle 3, an outlet at the bottom of the stirring reaction kettle 3 is connected with an inlet of the reaction kettle pump 4, the reaction kettle discharge pump 4 is sent to an evaporation process, an outlet of the stirring reaction mixer 3 at the top is connected with an inlet of the ammonia absorption tower 5, an outlet of the ammonia absorption tower 5 of the ammonia absorption tower 6 is connected with an inlet of the ammonia absorption circulating pump 6 of the ammonia absorption tower 6;
one-level liquid ammonia feed governing valve M1 and one-level ammonia feed flowmeter M2 all are in on liquid ammonia to the liquid ammonia pipeline of one-level ammonia acid blender 1, second grade liquid ammonia feed governing valve M3 and second grade ammonia feed flowmeter M4 all are in on liquid ammonia to the liquid ammonia pipeline of second grade ammonia acid blender 2, reation kettle thermometer M6 is in the top of stirring reation kettle 3, cooling water outlet governing valve M7 is in on the cooling water outlet pipeline of stirring reation kettle 3, reation kettle ejection of compact governing valve M8 and reation kettle ejection of compact flowmeter M9 all are in on the stirring reation kettle 3 bottom outlet pipeline, ammonia absorption tower bottom liquid level meter M10 is in the bottom of the tower of ammonia absorption tower 5, sulphuric acid feed governing valve M11 and sulphuric acid feed flowmeter M12 all are in on the inlet pipe line at external sulphuric acid to ammonia absorption tower 5 top, absorption tower ejection of compact governing valve M13 and absorption tower ejection of compact flowmeter M14 all are in the export of ammonia absorption circulating pump 6 to the pipeline of the entry of one-level ammonia acid blender 1.
The device comprises a primary amino acid mixer 1, a secondary amino acid mixer 2, a stirring reaction kettle 3, a reaction kettle discharge pump 4, an ammonia absorption tower 5 and an ammonia absorption circulating pump 6, and the reaction synthesis equipment in the continuous device for preparing the sulfuric acid from the dilute sulfuric acid is formed.
In the device, a primary liquid ammonia feeding regulating valve M1, a primary ammonia feed flow meter M2, a secondary liquid ammonia feeding regulating valve M3, a secondary ammonia feed flow meter M4, a proportion regulator M5, a reaction kettle thermometer M6, a cooling water outlet regulating valve M7, a reaction kettle discharging regulating valve M8, a reaction kettle discharging flow meter M9, an ammonia absorption tower bottom liquid level meter M10, a sulfuric acid feeding regulating valve M11, a sulfuric acid feed flow meter M12, an absorption tower discharging regulating valve M13 and an absorption tower discharging flow meter M14 form an instrument control system of the continuous device.
The dilute sulfuric acid enters an ammonia absorption tower, fully absorbs the escaped ammonia, then fully reacts in a 2-stage mixer, and then enters a stirring reaction kettle for further uniform mixing.
The stirring reaction kettle is of a jacket structure, the reaction heat of the ammonia and the sulfuric acid is timely withdrawn by utilizing cooling water, and the reaction process is stably carried out.
One-level liquid ammonia feed regulating valve M1, one-level ammonia feed flow meter M2, second grade liquid ammonia feed regulating valve M3, second grade ammonia feed flow meter M4, proportional control ware M5, sulphuric acid feed regulating valve M11, the combination of sulphuric acid feed flow meter M12 has constituted the proportional control structure, and the setting is controlled through 3 regulating valve, guarantees that 3 flowmeters form a reasonable feeding proportion, the feeding proportion of the synthetic raw materials of more accurate control ammonium sulfate.
Specifically, dilute sulfuric acid controls the feeding amount by utilizing a sulfuric acid feeding adjusting valve M11 and a sulfuric acid feeding flow meter M12, enters an ammonia absorption tower 5 to absorb ammonia escaped after the front-stage reaction, the absorbed dilute acid solution sequentially enters a primary ammonia acid mixer 1 and a secondary ammonia acid mixer 2, and is reacted and synthesized with liquid ammonia in two static mixers according to the molar ratio of synthetic ammonium sulfate, and the synthesized solution automatically enters a stirring reaction kettle for further reaction and homogenization; the heat generated by violent reaction is removed by circulating cooling water, the whole device forms 2-stage static mixing reaction and one-stage stirring reaction, and a heat removal cooling medium is added, so that the stability of the reaction is greatly improved, the accurate feeding of sulfuric acid and ammonia is realized by means of fully utilizing accurate instrument regulating valves and the like, the escaped ammonia is absorbed by dilute sulfuric acid, and the escape of the ammonia is avoided.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A serialization device for preparing ammonium sulfate by byproduct dilute sulfuric acid is characterized by comprising a primary ammonia acid mixer (1), a secondary ammonia acid mixer (2), a stirring reaction kettle (3), a reaction kettle discharge pump (4), an ammonia absorption tower (5), an ammonia absorption circulating pump (6), a primary liquid ammonia feeding regulating valve (M1), a primary ammonia feeding flowmeter (M2), a secondary liquid ammonia feeding regulating valve (M3), a secondary ammonia feeding flowmeter (M4), a proportion regulator (M5), a reaction kettle thermometer (M6), a cooling water outlet regulating valve (M7), a reaction kettle discharge regulating valve (M8), a reaction kettle discharge flowmeter (M9), an ammonia absorption tower bottom liquid level meter (M10), a sulfuric acid feeding regulating valve (M11), a sulfuric acid feeding flowmeter (M12), an absorption tower discharge regulating valve (M13) and an absorption tower discharge flowmeter (M14), the export of one-level ammonia acid blender (1) is connected the entry of second grade ammonia acid blender (2), the entry at exit linkage stirring reation kettle (3) top of second grade ammonia acid blender (2), the entry of exit linkage reation kettle discharge pump (4) of stirring reation kettle (3) bottom, evaporation process is delivered to outward to reation kettle discharge pump (4), the gas inlet of exit linkage ammonia absorption tower (5) bottom at stirring reation kettle (3) top, the liquid outlet connection ammonia of ammonia absorption tower (5) absorbs income of circulating pump (6) The outlet of the ammonia absorption circulating pump (6) is connected with the inlet of the primary amino acid mixer (1);
one-level liquid ammonia feed regulating valve (M1) and one-level ammonia feed flowmeter (M2) all are in on the liquid ammonia pipeline of liquid ammonia to one-level ammonia acid blender (1), second grade liquid ammonia feed regulating valve (M3) and second grade ammonia feed flowmeter (M4) all are in on the liquid ammonia pipeline of liquid ammonia to second grade ammonia acid blender (2), reation kettle thermometer (M6) is in the top of stirring reation kettle (3), cooling water outlet governing valve (M7) is in on the cooling water outlet pipeline of stirring reation kettle (3), reation kettle discharge regulating valve (M8) and reation kettle discharge flowmeter (M9) all are in on stirring reation kettle (3) bottom outlet pipeline, ammonia absorption tower bottom level meter (M10) is in the bottom of the tower of ammonia tower (5), sulphuric acid feed regulating valve (M11) and sulphuric acid feed flowmeter (M12) all are in on the inlet pipe line of the top of external sulphuric acid to absorption tower (5), absorption tower discharge regulating valve (M13) and absorption tower all are in the export of the mixed entry of the one-level ammonia acid mixer (1) of absorption tower (M6).
2. The continuous production apparatus for producing ammonium sulfate from a by-product dilute sulfuric acid as claimed in claim 1, characterized in that: the primary amino acid mixer (1), the secondary amino acid mixer (2), the stirring reaction kettle (3), the reaction kettle discharge pump (4), the ammonia absorption tower (5) and the ammonia absorption circulating pump (6) form reaction synthesis equipment.
3. The continuous production apparatus for producing ammonium sulfate from a by-product dilute sulfuric acid as claimed in claim 1, characterized in that: the device comprises a primary liquid ammonia feeding adjusting valve (M1), a primary ammonia feeding flow meter (M2), a secondary liquid ammonia feeding adjusting valve (M3), a secondary ammonia feeding flow meter (M4), a proportional regulator (M5), a reaction kettle thermometer (M6), a cooling water outlet adjusting valve (M7), a reaction kettle discharging adjusting valve (M8), a reaction kettle discharging flow meter (M9), an ammonia absorption tower bottom liquid level meter (M10), a sulfuric acid feeding adjusting valve (M11), a sulfuric acid feeding flow meter (M12), an absorption tower discharging adjusting valve (M13) and an absorption tower discharging flow meter (M14) which form an instrument control system.
4. The continuous production apparatus for producing ammonium sulfate from a by-product dilute sulfuric acid as claimed in claim 1, characterized in that: the stirring reaction kettle (3) is of a jacket structure.
5. The continuous production apparatus for producing ammonium sulfate from a by-product dilute sulfuric acid as claimed in claim 1, characterized in that: the proportional control structure is formed by combining the primary liquid ammonia feeding adjusting valve (M1), the primary ammonia feeding flow meter (M2), the secondary liquid ammonia feeding adjusting valve (M3), the secondary ammonia feeding flow meter (M4), the proportional controller (M5), the sulfuric acid feeding adjusting valve (M11) and the sulfuric acid feeding flow meter (M12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221710238.XU CN218359196U (en) | 2022-07-05 | 2022-07-05 | Serialization device of ammonium sulfate is prepared to by-product dilute sulfuric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221710238.XU CN218359196U (en) | 2022-07-05 | 2022-07-05 | Serialization device of ammonium sulfate is prepared to by-product dilute sulfuric acid |
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| CN218359196U true CN218359196U (en) | 2023-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221710238.XU Active CN218359196U (en) | 2022-07-05 | 2022-07-05 | Serialization device of ammonium sulfate is prepared to by-product dilute sulfuric acid |
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- 2022-07-05 CN CN202221710238.XU patent/CN218359196U/en active Active
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