CN217613924U - Drying tower for pyrite acid making - Google Patents
Drying tower for pyrite acid making Download PDFInfo
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- CN217613924U CN217613924U CN202221547983.7U CN202221547983U CN217613924U CN 217613924 U CN217613924 U CN 217613924U CN 202221547983 U CN202221547983 U CN 202221547983U CN 217613924 U CN217613924 U CN 217613924U
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Abstract
The utility model discloses a drying tower for preparing acid from pyrite, relating to the technical field of sulfuric acid production equipment; the method comprises the following steps: the drying device comprises a tower body, wherein an inner cavity of the tower body is vertically divided into a plurality of drying cavities, the drying cavities are used for filling dry fillers, and the drying cavities are sequentially communicated; the acid distributor is used for inputting concentrated sulfuric acid into each drying cavity; the lower part of the tower body is provided with an acid collecting cavity, the acid collecting cavity is positioned at the lower end of the drying cavity, and the lower end of the drying cavity is communicated with the acid collecting cavity. The utility model discloses a take sour filler of a plurality of dry intracavity to drying including the sulfur burner gas, and the tower body lower part is equipped with the acid collecting cavity, and the acid collecting cavity is located dry chamber lower extreme, and each dry chamber lower extreme all with acid collecting cavity intercommunication, the sulphuric acid of output from dry chamber lower extreme is collected to accessible acid collecting cavity to realize multistage drying, thereby abundant dry including the sulfur burner gas, need not prolong the dwell time who contains the sulfur burner gas in the tower body, can improve the drying efficiency who contains the sulfur burner gas.
Description
Technical Field
The utility model relates to a sulphuric acid production facility technical field, concretely relates to drying tower for pyrite system acid.
Background
The principle of sulfuric acid production mainly comprises pyrite, sulfur, smelting flue gas containing sulfur dioxide, natural gypsum, phosphogypsum and the like, and pyrite is a main sulfur resource in China by using sulfur concentrate which is a byproduct associated with non-ferrous metals, so domestic sulfuric acid production is mainly performed by using pyrite. When the pyrite is adopted for acid production, after a certain amount of air needs to be supplemented to the purified sulfur-containing furnace gas (containing sulfur dioxide), the flue gas meeting the concentration requirement is introduced into a drying tower to remove the moisture in the sulfur-containing furnace gas.
The existing drying towers for preparing acid from pyrite are all packed towers, concentrated sulfuric acid (96%) is sprayed on the packing through an acid distributor, and then the drying is carried out through the concentrated sulfuric acid. Because the existing packed tower is a single-cavity tower, the efficiency of drying the sulfur-containing furnace gas depends on the retention time of the sulfur-containing furnace gas in the tower and the spraying uniformity of the acid distributor, the existing acid distributor usually comprises a main pipe and a plurality of branch pipes which are connected to the main pipe and distributed in a crab claw shape, the condition of uneven outflow of concentrated sulfuric acid is easy to occur, and the drying efficiency of the sulfur-containing furnace gas is low.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problem that concentrated sulfuric acid of an acid separator of a drying tower for preparing acid from pyrite is not uniformly distributed; the utility model provides a drying tower for pyrite acid-making can avoid leading to the problem that contains the sulfur burner gas and can not fully dry because acid separator divides sour inequality to improve the drying efficiency who contains the sulfur burner gas.
The utility model discloses a following technical scheme realizes:
the utility model provides a drying tower for pyrite acid making, include: the drying device comprises a tower body, wherein an inner cavity of the tower body is vertically divided into a plurality of drying cavities, the drying cavities are used for filling dry fillers, and the drying cavities are sequentially communicated; the acid distributor is used for inputting concentrated sulfuric acid into each drying cavity; the tower body lower part is equipped with an acid collecting cavity, the acid collecting cavity is located the drying cavity lower extreme, and each drying cavity lower extreme all with the acid collecting cavity intercommunication.
The existing drying tower is provided with an acid distributor and a filler from top to bottom in an inner cavity, then the sulfur-containing furnace gas is subjected to the filler after concentrated sulfuric acid is distributed, and then the sulfur-containing furnace gas is output to the drying tower to be dried.
And the utility model provides a drying tower is used in pyrite system acid, the vertical division of inner chamber of tower body is a plurality of dry chambeies, and a plurality of dry chambeies communicate in order, and input concentrated sulfuric acid to each dry chamber through dividing sour ware, after containing sour burner gas and entering into the tower body inner chamber, pass through a plurality of dry chambeies in proper order, and then take sour filler through a plurality of dry intracavity to dry containing sour burner gas, realize multistage drying, thereby abundant dry containing sour burner gas, even if under the uneven condition of acid distributor distribution, also can ensure that all containing sour burner gas homoenergetic contacts with the filler that contains the concentrated sulfuric acid, do not need to prolong the dwell time of containing sour burner gas in the tower body.
Wherein, the tower body lower part is equipped with an album acid chamber, and an album acid chamber is located drying chamber lower extreme, and each drying chamber lower extreme all communicates with an album acid chamber, and the accessible is collected from the sulphuric acid of drying chamber lower extreme output in album acid chamber.
To sum up, the utility model provides a drying tower for pyrite acid-making can avoid leading to the problem that contains the sulfur burner gas and can not fully dry because acid distributor divides the acid inequality to improve the drying efficiency who contains the sulfur burner gas.
In an optional embodiment, the air inlet and the air outlet of each drying cavity are respectively arranged at two ends of the height direction of the drying cavity, so that the sulfur-containing furnace gas flows along the length direction of the drying cavity, and the sulfur-containing furnace gas is ensured to be fully contacted with the filler in the drying cavity.
In an optional embodiment, a drying filler is disposed in each drying cavity.
In an optional embodiment, an overflow nozzle is arranged on one side of the acid collecting cavity, and the height of the overflow nozzle is lower than that of the air outlet of the drying cavity, so that the sulfuric acid in the acid collecting cavity can be prevented from blocking the air outlet of the drying cavity to influence the circulation of sulfur-containing furnace gas.
In an optional embodiment, the sulfuric acid collecting device further comprises a circulating groove, and the circulating groove is used for receiving sulfuric acid overflowed from the overflow nozzle so as to collect sulfuric acid overflowed from the acid collecting cavity.
In an optional embodiment, the circulation tank is adapted with an acid pump, and an acid outlet end of the acid pump is connected with an acid inlet end of the acid distributor, so as to realize the recycling of the concentrated sulfuric acid.
In an optional embodiment, a filter is arranged between the acid pump and the acid distributor, and impurities carried in the concentrated sulfuric acid drying furnace gas can be filtered out through the filter.
In an optional embodiment, the tower body is provided with an air inlet nozzle and an air outlet nozzle, and the air inlet nozzle and the air outlet nozzle are both positioned at the upper part of the tower body, so that the arrangement of pipelines is facilitated.
In an optional embodiment, the acid distributor comprises an acid inlet pipe and a plurality of acid distribution branch pipes, and each acid distribution branch pipe is longitudinally arranged at the upper end of the corresponding drying cavity; each acid distribution branch pipe is communicated with the acid inlet pipe, and a plurality of acid distribution holes are formed in the acid distribution branch pipes at intervals along the length direction of the acid distribution branch pipes so as to distribute concentrated sulfuric acid to each drying cavity.
In an optional embodiment, the acid inlet nozzles are arranged at two ends of the acid inlet pipe, and the acid distribution branch pipes are arranged at intervals along the length direction of the acid inlet pipe so as to ensure the acid distribution uniformity of the acid distributor.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the utility model provides a drying tower for pyrite acid-making, the vertical segmentation of inner chamber of tower body is a plurality of dry chambeies, and a plurality of dry chambeies communicate in order to input concentrated sulfuric acid to each dry chamber through dividing sour ware, after containing sour burner gas and entering into the tower body inner chamber, pass through a plurality of dry chambeies in proper order, and then the sour filler of taking through a plurality of dry intracavity is dried to containing sour burner gas, and the tower body lower part is equipped with the acid collecting chamber simultaneously, and the acid collecting chamber is located dry chamber lower extreme, and each dry chamber lower extreme all communicates with the acid collecting chamber, and the sulphuric acid from dry chamber lower extreme output is collected to accessible acid collecting chamber, in order to realize multistage drying, thereby abundant dry containing sour burner gas, even if under the uneven condition of acid distributor acid distribution, also can ensure that all containing sour burner gas homoenergetic contacts with the filler that contains the concentrated sulfuric acid, need not prolong the dwell time of containing sour burner gas in the tower body, consequently, can avoid leading to containing the problem that the sour burner gas can not be fully dried because of acid distributor divides sour burner gas, and improve the drying efficiency who contains sulphur.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
In the drawings:
FIG. 1 is a schematic structural diagram of a drying tower for producing acid from pyrite according to an embodiment of the present invention;
fig. 2 is a schematic view of the acid separator in the drying tower for producing acid from pyrite according to the embodiment of the present invention.
Reference numbers and corresponding part names in the figures:
100-tower body, 110-drying cavity, 120-drying filler, 130-acid collecting cavity, 131-overflow nozzle, 140-air inlet nozzle, 150-air outlet nozzle, 200-acid distributor, 210-acid inlet pipe, 211-acid inlet nozzle, 220-acid distributing branch pipe, 221-acid distributing hole, 300-circulating tank, 310-acid pump and 400-sulfuric acid.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures. The embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In the description of the embodiments of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", and the like refer to orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships that are conventionally used in the product of the present application, or the orientations or positional relationships that are conventionally understood by those skilled in the art, and are intended merely to facilitate the description of the present application and to simplify the description, but do not indicate or imply that the device or element that is referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present application.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "open," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
With reference to fig. 1, this embodiment provides a drying tower for producing acid from pyrite, including: the tower comprises a tower body 100, wherein an inner cavity of the tower body 100 is vertically divided into a plurality of drying cavities 110, the drying cavities 110 are used for filling dry fillers, and the drying cavities 110 are sequentially communicated; an acid distributor 200, wherein the acid distributor 200 is used for inputting concentrated sulfuric acid into each drying cavity 110; wherein, tower body 100 lower part is equipped with and collects sour chamber 130, it is located to collect sour chamber 130 dry chamber 110 lower extreme, and each dry chamber 110 lower extreme all with collect sour chamber 130 intercommunication.
It is understood that the tower body 100 is provided with the air inlet 140 and the air outlet 150, and the air inlet 140 and the air outlet 150 are both positioned at the upper portion of the tower body 100 to facilitate the layout of the pipeline. Meanwhile, each drying cavity 110 is provided with a drying filler 120 therein.
In this embodiment, the air inlet and the air outlet of each drying cavity 110 are respectively disposed at two ends of the height direction thereof, so that the sulfur-containing furnace gas flows along the length direction of the drying cavity 110, and the sulfur-containing furnace gas is ensured to be fully contacted with the filler in the drying cavity 110.
In addition, one side of the acid collecting cavity 130 is provided with an overflow nozzle 131, and the height of the overflow nozzle 131 is lower than the air outlet of the drying cavity 110, so that the sulfuric acid in the acid collecting cavity 130 can be prevented from blocking the air outlet of the drying cavity 110 to influence the circulation of sulfur-containing furnace gas.
It should be noted that, the existing drying tower is provided with the acid distributor 200 and the filler from top to bottom in the inner cavity, then the sulfur-containing furnace gas is subjected to the filler distributed with concentrated sulfuric acid, and then the sulfur-containing furnace gas is output to the drying tower to be dried, meanwhile, the existing acid distributor 200 generally comprises a main pipe and a plurality of branch pipes which are connected to the main pipe and distributed in a crab claw shape, so that the concentrated sulfuric acid is prone to flow out unevenly, and thus, part of the sulfur-containing furnace gas cannot be dried effectively, and the retention time of the sulfur-containing furnace gas in the drying tower needs to be prolonged or the sulfur-containing furnace gas needs to be dried for a plurality of times, so that the drying efficiency of the sulfur-containing furnace gas is low.
The drying tower for producing acid from pyrite provided by this embodiment, the inner cavity of the tower body 100 is vertically divided into a plurality of drying cavities 110, and the drying cavities 110 are sequentially communicated, and concentrated sulfuric acid is input to each drying cavity 110 through the acid distributor 200, when sulfur-containing furnace gas enters the inner cavity of the tower body 100, the sulfur-containing furnace gas sequentially passes through the drying cavities 110, and then the sulfur-containing furnace gas is dried by acid-carrying fillers in the drying cavities 110, so that multi-stage drying is realized, thereby fully drying the sulfur-containing furnace gas, even if the acid distributor 200 distributes acid unevenly, all sulfur-containing furnace gas can be ensured to be fully contacted with the filler containing concentrated sulfuric acid, and the retention time of the sulfur-containing furnace gas in the tower body 100 does not need to be prolonged.
Wherein, tower body 100 lower part is equipped with and collects sour chamber 130, and sour chamber 130 that collects is located drying chamber 110 lower extreme, and each drying chamber 110 lower extreme all with collection sour chamber 130 intercommunication, accessible collection sour chamber 130 collects the sulphuric acid of following the output of drying chamber lower extreme.
In conclusion, the drying tower for producing acid from pyrite provided by the embodiment can avoid the problem that the sulfur-containing furnace gas cannot be sufficiently dried due to uneven acid separation of the acid separator 200, and improve the drying efficiency of the sulfur-containing furnace gas.
Example 2
With reference to fig. 1, the present embodiment provides a drying tower for producing acid from pyrite, which further includes a circulation tank 300 based on the structure and principle described in embodiment 1, wherein the circulation tank 300 is configured to receive sulfuric acid overflowing from the overflow nozzle 131, so as to collect sulfuric acid overflowing from the acid collecting chamber 130.
Specifically, the circulation tank 300 is adapted with an acid pump 310, and an acid outlet end of the acid pump 310 is connected with an acid inlet end of the acid distributor 200, so as to recycle concentrated sulfuric acid.
Optionally, a filter is disposed between the acid pump 310 and the acid distributor 200, and the filter can filter out impurities carried in the concentrated sulfuric acid drying furnace gas.
Example 3
With reference to fig. 2, the present embodiment provides a drying tower for producing acid from pyrite, based on the structure and principle described in embodiment 1 or 2, the acid distributor 200 includes an acid inlet pipe 210 and a plurality of acid distribution branch pipes 220, and each acid distribution branch pipe 220 is longitudinally disposed at the upper end of the corresponding drying chamber 110; each acid distribution branch pipe 220 is communicated with the acid inlet pipe 210, and the acid distribution branch pipes 220 are provided with a plurality of acid distribution holes 221 at intervals along the length direction thereof so as to distribute concentrated sulfuric acid to each drying cavity 110.
Preferably, both ends of the acid inlet pipe 210 are provided with acid inlets 211, and the plurality of acid distribution branch pipes 220 are arranged at intervals along the length direction of the acid inlet pipe 210, so as to ensure the uniformity of acid distribution of the acid distributor 200.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A drying tower for pyrite-based sulphuric acid is characterized in that, comprising:
the tower comprises a tower body (100), wherein an inner cavity of the tower body (100) is vertically divided into a plurality of drying cavities (110), the drying cavities (110) are used for filling dry fillers, and the drying cavities (110) are sequentially communicated;
the acid distributor (200) is used for inputting concentrated sulfuric acid to each drying cavity (110);
wherein, tower body (100) lower part is equipped with and gathers sour chamber (130), it is located to gather sour chamber (130) dry chamber (110) lower extreme, and each dry chamber (110) lower extreme all with it communicates to gather sour chamber (130).
2. The drying tower for producing acid from pyrite according to claim 1, wherein the air inlet and the air outlet of each drying chamber (110) are respectively disposed at both ends of the drying chamber in a height direction.
3. The drying tower for producing acid from pyrite according to claim 1, wherein a dry filler (120) is disposed in each of the drying chambers (110).
4. The drying tower for manufacturing acid from pyrite according to claim 1, wherein an overflow gate (131) is disposed at one side of the acid collecting chamber (130), and the height of the overflow gate (131) is lower than the air outlet of the drying chamber (110).
5. The drying tower for the pyrite-based sulphuric acid production according to claim 4, further comprising a circulating tank (300), wherein the circulating tank (300) is used for receiving the sulphuric acid overflowed by the overflow nozzle (131).
6. The drying tower for pyrite-based sulphuric acid according to claim 5, wherein the circulation tank (300) is adapted with an acid pump (310), and the acid outlet of the acid pump (310) is connected with the acid inlet of the acid distributor (200).
7. The drying tower for pyrite-based sulphuric acid according to claim 6, wherein a filter is provided between the acid pump (310) and the acid separator (200).
8. The drying tower for pyrite-based sulfuric acid according to any one of claims 1 to 7, wherein the tower body (100) is provided with an inlet (140) and an outlet (150), and the inlet (140) and the outlet (150) are both located at an upper portion of the tower body (100).
9. The drying tower for the pyrite-based sulphuric acid according to claim 8, wherein the acid distributor (200) comprises an acid inlet pipe (210) and a plurality of acid distribution branch pipes (220), and each acid distribution branch pipe (220) is longitudinally arranged at the upper end of the corresponding drying chamber (110);
each acid distribution branch pipe (220) is communicated with the acid inlet pipe (210), and a plurality of acid distribution holes (221) are formed in the acid distribution branch pipes (220) at intervals along the length direction of the acid distribution branch pipes.
10. The drying tower for manufacturing acid from pyrite according to claim 9, wherein both ends of the acid inlet pipe (210) are provided with acid inlets (211), and the plurality of acid distribution branch pipes (220) are arranged at intervals along the length direction of the acid inlet pipe (210).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221547983.7U CN217613924U (en) | 2022-06-20 | 2022-06-20 | Drying tower for pyrite acid making |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221547983.7U CN217613924U (en) | 2022-06-20 | 2022-06-20 | Drying tower for pyrite acid making |
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| Publication Number | Publication Date |
|---|---|
| CN217613924U true CN217613924U (en) | 2022-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221547983.7U Active CN217613924U (en) | 2022-06-20 | 2022-06-20 | Drying tower for pyrite acid making |
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| CN (1) | CN217613924U (en) |
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2022
- 2022-06-20 CN CN202221547983.7U patent/CN217613924U/en active Active
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