CN212222420U - Circulation efficient sulfurous acid preparation facilities - Google Patents
Circulation efficient sulfurous acid preparation facilities Download PDFInfo
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- CN212222420U CN212222420U CN202020529924.1U CN202020529924U CN212222420U CN 212222420 U CN212222420 U CN 212222420U CN 202020529924 U CN202020529924 U CN 202020529924U CN 212222420 U CN212222420 U CN 212222420U
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Abstract
The utility model relates to a circulating efficient sulfurous acid preparation device, which comprises a combustion furnace (1), a water cooling tank (3) connected with an acid storage tank (27), a primary circulating tower (9), a secondary circulating tower (18) and a spray tower (28) which are connected in sequence; a cavity rotating shaft (4) is arranged in the water cooling tank (3), and an air jet (5) is arranged on the cavity rotating shaft (4); a first sprayer (10) is arranged in the first-stage circulating tower (9), the lower part of the first-stage circulating tower is connected with a first-stage recovery tank (12), and the first-stage recovery tank (12) is connected with the first sprayer (10); the arrangement of the secondary circulating tower (18) is the same as that of the primary circulating tower (9); an ammonia water injector (29) is arranged in the spray tower (28), an ammonia liquid recovery tank (30) is arranged at the bottom, and a vent (28 a) is arranged at the top. The utility model has the advantages that effectively alleviate the harmful effects of high temperature sulfur dioxide to equipment, improved sulfur dioxide conversion efficiency simultaneously.
Description
Technical Field
The utility model belongs to the technical field of workshop peculiar smell treatment facility technique and specifically relates to a circulation efficient sulfurous acid preparation facilities.
Background
At present, the preparation of sulfurous acid generally adopts a sulfur combustion method, sulfur dioxide is generated after the reaction of sulfur and oxygen, then the sulfur dioxide is cooled and filtered, and finally water is introduced to form sulfurous acid solution. However, in the process, sulfur dioxide gas generated after the combustion of sulfur has strong corrosivity to equipment and pipelines, and particularly when the concentration is too high, the corrosion degree is increased, and the service life of the equipment and the pipelines is influenced; meanwhile, a part of sulfur dioxide gas which cannot be dissolved is directly treated and then discharged, so that the sulfur dioxide gas cannot be fully utilized, and resource waste is caused.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is exactly in order to solve among the current sulfurous acid preparation sulfur dioxide utilization ratio low, to the serious problem of equipment damage, provides a circulation efficient sulfurous acid preparation facilities, not only can alleviate the harmful effects of sulfur dioxide to equipment, but also can fully change the sulfur dioxide that the burning produced into sulfurous acid, improves conversion efficiency, avoids the wasting of resources.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a cyclic and efficient sulfurous acid preparation device comprises a combustion furnace, wherein an outlet of the combustion furnace is connected with an air inlet of a water cooling tank through a high-temperature pipeline, a cavity rotating shaft connected with the air inlet is connected in the water cooling tank, one end of the cavity rotating shaft is connected with a rotating motor, the rotating motor is arranged on the outer wall of the water cooling tank, and a group of air nozzles are arranged on the cavity rotating shaft and used for spraying sulfur dioxide gas generated by the combustion furnace into the water cooling tank through the rotating air nozzles;
the bottom of the water cooling tank is provided with a liquid exchange port and an acid outlet, the acid outlet is provided with an acid outlet valve, and the acid outlet valve is connected with an acid storage tank through a pipeline and used for storing sulfurous acid solution generated in the water cooling tank;
the top of the water cooling tank is provided with a first gas outlet, the first gas outlet is connected with a middle gas inlet of a first-stage circulating tower through a pipeline, the upper part of the first-stage circulating tower is provided with a first sprayer, the bottom of the first-stage circulating tower is provided with a first-stage circulating port, the first-stage circulating port is connected with a first-stage recycling groove through a pipeline, a first-stage circulating valve is arranged on the pipeline between the first-stage circulating tower and the first-stage circulating tower, the first-stage recycling groove is connected with a first-stage circulating pipe through a first-stage circulating pump, and;
a first concentration detector connected with an external controller is arranged in the primary recovery tank, a first recovery pipe is arranged at the bottom of the primary recovery tank, a first recovery valve matched with the first concentration detector is arranged on the first recovery pipe, the first recovery pipe is connected with the acid storage tank, and the first recovery valve is opened to carry out acid liquor recovery treatment when the acid liquor concentration in the primary recovery tank reaches a certain degree;
the top of the first-stage circulating tower is provided with a second air outlet, the second air outlet is connected with a middle air inlet of a second-stage circulating tower through a pipeline, the second-stage circulating tower is arranged as same as the first-stage circulating tower, the second-stage circulating tower is connected with a second-stage recovery tank, and the second-stage recovery tank is arranged as same as the first-stage recovery tank and used for recycling acid liquor again;
and a third air outlet at the top of the secondary circulating tower is connected with a middle air inlet of a spray tower through a pipeline, the upper part of the spray tower is provided with an ammonia water ejector, the bottom of the spray tower is provided with an ammonia liquid recovery tank, and the top of the spray tower is provided with an emptying port for emptying the treated air.
Furthermore, the cavity rotating shaft is parallel to the bottom surface of the water cooling box and is arranged diagonally, so that the length of the air rotating shaft is increased, and more sulfur dioxide gas can be conveniently received.
Further, the gas nozzles are uniformly arranged in parallel to the axis of the cavity rotating shaft so as to balance the gas flow of each gas nozzle.
Further, the rotating speed of the rotating motor is 6-12 r/min.
Further, a sealing gasket is arranged between the rotating motor and the water cooling tank, so that the sealing strength of the joint is enhanced.
The utility model discloses used concentration detection appearance is current device, can give external controller with signal transmission, and when concentration reached a definite value, the controller controlled recovery valve was opened to retrieve the sulfurous acid solution in the accumulator to storing up the sour inslot.
The technical scheme of the utility model in, carry out the water-cooling earlier simultaneously through the high temperature sulfur dioxide who produces after burning sulphur and dissolve, make some gas make sulfurous acid solution, the gas that does not dissolve upwards gets into cyclic utilization in the circulating tower for remaining gas is dissolved in water and is made sulfurous acid solution and preserve, mixes with the aqueous ammonia in the last remaining gas entering spray column, makes ammonium bisulfite recycle. The utility model discloses a device can effectively alleviate the harmful effects of high temperature sulfur dioxide to equipment, and simultaneously through absorbing layer upon layer, can fully change the sulfur dioxide that the burning produced into sulfurous acid, improves conversion efficiency, avoids the wasting of resources.
Drawings
FIG. 1 is a schematic structural diagram of a cyclic efficient sulfurous acid preparation device of the present invention.
Detailed Description
Example 1
In order to make the present invention more clear, the following description of the circulating efficient sulfurous acid preparation apparatus of the present invention is made with reference to the accompanying drawings, and the embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention.
Referring to fig. 1, a cyclic high-efficiency sulfurous acid production apparatus includes a combustion furnace 1, and is characterized in that:
an outlet of the combustion furnace 1 is connected with an air inlet 3a of a water cooling tank 3 through a high-temperature pipeline 2, a cavity rotating shaft 4 connected with the air inlet 3a is connected in the water cooling tank 3, and the cavity rotating shaft 4 is parallel to the bottom surface of the water cooling tank 3 and is arranged in a diagonal manner so as to increase the length of the air rotating shaft and facilitate receiving more sulfur dioxide gas;
one end of the cavity rotating shaft 4 is connected with a rotating motor 6, the rotating motor 6 is arranged on the outer wall of the water cooling tank 3, the rotating speed of the rotating motor 6 is 10r/min, a sealing gasket 7 is arranged between the rotating motor 6 and the water cooling tank 3, a group of air nozzles 5 are arranged on the cavity rotating shaft 4, and the air nozzles 5 are uniformly arranged in parallel with the axis of the cavity rotating shaft 4 and used for balancing the flow of sulfur dioxide gas of each air nozzle;
the bottom of the water cooling tank 3 is provided with a liquid exchange port 3b and an acid outlet 3c, the acid outlet 3c is provided with an acid outlet valve 8, and the acid outlet valve is connected with an acid storage tank 27 through a pipeline and used for storing sulfurous acid solution generated in the water cooling tank;
the top of the water cooling tank 3 is provided with a first gas outlet 3d, the first gas outlet 3d is connected with a middle gas inlet of a first-stage circulating tower 9 through a pipeline, the upper part of the first-stage circulating tower 9 is provided with a first sprayer 10, the bottom of the first-stage circulating tower 9 is provided with a first-stage circulating port 9a, the first-stage circulating port 9a is connected with a first-stage recycling tank 12 through a pipeline, a first-stage circulating valve 11 is arranged on the pipeline between the first-stage circulating tower 9 and the first-stage circulating tank 12, the first-stage recycling tank 12 is connected with a first-stage circulating pipe 14 through a first-stage circulating pump 13, and the first;
a first concentration detector 15 connected with an external controller is arranged in the primary recovery tank 12, a first recovery pipe 16 is arranged at the bottom of the primary recovery tank 12, a first recovery valve 17 matched with the first concentration detector 15 is arranged on the first recovery pipe 16, the first recovery pipe 16 is connected with the acid storage tank 27, and the first recovery valve 17 is opened to perform acid liquor recovery processing when the acid liquor concentration in the primary recovery tank 12 reaches a certain degree;
the top of the first-stage circulating tower 9 is provided with a second gas outlet 9b, the second gas outlet 9b is connected with a middle gas inlet of a second-stage circulating tower 18 through a pipeline, the upper part of the second-stage circulating tower 18 is provided with a second sprayer 19, the bottom of the second-stage circulating tower 18 is provided with a second circulating port 18a, the second circulating port 18a is connected with a second recycling tank 21 through a pipeline, a second circulating valve 20 is arranged on the pipeline between the second circulating tower and the second circulating tower, the second recycling tank 21 is connected with a second circulating pipe 23 through a second circulating pump 22, and the second circulating pipe 23 is connected with the second sprayer 19 and used for recycling acid liquor;
a second concentration detector 24 connected with an external controller is arranged in the secondary recovery tank 21, a second recovery pipe 25 is arranged at the bottom of the secondary recovery tank 21, a second recovery valve 26 matched with the second concentration detector 24 is arranged on the second recovery pipe 25, and the second recovery pipe 26 is connected with the acid storage tank 27 so as to open the second recovery valve 26 for acid liquor recovery treatment when the acid liquor concentration in the secondary recovery tank 21 reaches a certain degree;
the third air outlet 18b at the top of the second-stage circulating tower 18 is connected with the middle air inlet of a spray tower 28 through a pipeline, the upper part of the spray tower 28 is provided with an ammonia water ejector 29, the bottom of the spray tower 28 is provided with an ammonia liquid recovery tank 30, and the top of the spray tower 28 is provided with a vent 28a for venting the treated air.
When the device is used, high-temperature sulfur dioxide gas generated in the combustion furnace 1 enters the cavity rotating shaft 4 in the water cooling tank 3 along the high-temperature pipeline 2, the cavity rotating shaft 4 is driven by the rotating motor 6 to rotate slowly, and the gas is sprayed into water cooling liquid along the rotating gas spraying port 5; undissolved gas continuously enters the primary circulating tower 9 upwards and reversely contacts with the aqueous solution sprayed from the first sprayer 10, a part of gas is absorbed and then falls into the bottom to be discharged into the primary recovery tank 12, the primary recovery pump 13 pumps the liquid back into the first sprayer 10 for reuse, when the concentration in the primary recovery tank 12 reaches a certain value, the controller opens the first recovery valve 17, and the sulfurous acid solution in the primary recovery tank 12 flows into the acid storage tank 27 for later use; the gas which is not absorbed by the first-stage circulating tower continuously enters the second-stage circulating tower 18 for reabsorption, and the working principle of the second-stage circulating tower 18 is the same as that of the first-stage circulating tower; and the residual small amount of gas after passing through the secondary circulating tower 18 enters the spray tower 28 again to reversely contact with the ammonia water in the ammonia water ejector 29, ammonium bisulfite formed after acid-base reaction falls into the ammonia liquid recovery tank 30 below, and the treated clean gas is discharged through the vent 28 a.
The utility model discloses carry out the water-cooling simultaneously with high temperature sulfur dioxide and dissolve, make some gas make the sulfurous acid solution earlier, do not carry out cyclic utilization in the soluble gas entering circulating tower, mix with the aqueous ammonia in the last remaining gas entering spray column, make ammonium bisulfite recycle. The utility model discloses a device can effectively alleviate the harmful effects of high temperature sulfur dioxide to equipment, and simultaneously through absorbing layer upon layer, can fully change the sulfur dioxide that the burning produced into sulfurous acid, improves conversion efficiency, avoids the wasting of resources.
In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.
Claims (5)
1. A cyclic high-efficiency sulfurous acid preparation device comprises a combustion furnace (1), and is characterized in that:
the combustion furnace is connected with the water cooling tank, the primary circulating tower, the secondary circulating tower and the spray tower in sequence;
the combustion furnace (1) is connected with an air inlet (3 a) of a water cooling tank (3) through a high-temperature pipeline (2), a cavity rotating shaft (4) connected with the air inlet (3 a) is connected in the water cooling tank (3), one end of the cavity rotating shaft (4) is connected with a rotating motor (6), and a group of air nozzles (5) are arranged on the cavity rotating shaft (4);
the bottom of the water cooling tank (3) is provided with a liquid exchange port (3 b) and an acid outlet (3 c), the acid outlet (3 c) is provided with an acid outlet valve (8), and the acid outlet (3 c) is connected with an acid storage tank (27);
a first air outlet (3 d) at the top of the water cooling tank (3) is connected with an air inlet in the middle of a first-stage circulating tower (9), a first sprayer (10) is arranged at the upper part of the first-stage circulating tower (9), a first-stage circulating port (9 a) is arranged at the bottom of the first-stage circulating tower (9), the first-stage circulating port (9 a) is connected with a first-stage recycling tank (12), a first-stage circulating valve (11) is arranged on a pipeline between the first-stage circulating tower and the first-stage circulating tower, the first-stage recycling tank (12) is connected with a first-stage circulating pipe (14) through a first-stage circulating pump (;
a first concentration detector (15) connected with an external controller is arranged in the first-stage recovery tank (12), a first recovery pipe (16) is arranged at the bottom of the first-stage recovery tank (12), a first recovery valve (17) matched with the first concentration detector (15) is arranged on the first recovery pipe (16), and the first recovery pipe (16) is connected with the acid storage tank (27);
a second air outlet (9 b) at the top of the first-stage circulating tower (9) is connected with an air inlet at the middle part of a second-stage circulating tower (18), the second-stage circulating tower (18) is arranged the same as the first-stage circulating tower (9), the second-stage circulating tower (18) is connected with a second-stage recovery tank (21), and the second-stage recovery tank (21) is arranged the same as the first-stage recovery tank (12);
a third air outlet (18 b) at the top of the secondary circulating tower (18) is connected with an air inlet at the middle part of the spray tower (28), an ammonia water ejector (29) is arranged at the upper part of the spray tower (28), an ammonia liquid recovery tank (30) is arranged at the bottom of the spray tower (28), and a vent (28 a) is arranged at the top of the spray tower (28).
2. The cyclically efficient sulfurous acid production apparatus according to claim 1, wherein:
the cavity rotating shaft (4) is parallel to the bottom surface of the water cooling box (3) and is arranged diagonally.
3. The cyclically efficient sulfurous acid production apparatus according to claim 1 or 2, wherein:
the air nozzles (5) are uniformly arranged in parallel with the axis of the cavity rotating shaft (4).
4. The cyclically efficient sulfurous acid production apparatus according to claim 1 or 2, wherein:
the rotating speed of the rotating motor (6) is 6-12 r/min.
5. The cyclically efficient sulfurous acid production apparatus according to claim 1 or 2, wherein:
and a sealing gasket (7) is arranged between the rotating motor (6) and the water cooling tank (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020529924.1U CN212222420U (en) | 2020-04-13 | 2020-04-13 | Circulation efficient sulfurous acid preparation facilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020529924.1U CN212222420U (en) | 2020-04-13 | 2020-04-13 | Circulation efficient sulfurous acid preparation facilities |
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| Publication Number | Publication Date |
|---|---|
| CN212222420U true CN212222420U (en) | 2020-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020529924.1U Active CN212222420U (en) | 2020-04-13 | 2020-04-13 | Circulation efficient sulfurous acid preparation facilities |
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| Country | Link |
|---|---|
| CN (1) | CN212222420U (en) |
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2020
- 2020-04-13 CN CN202020529924.1U patent/CN212222420U/en active Active
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