CN111229071A - Concentrated sulfuric acid diluter - Google Patents
Concentrated sulfuric acid diluter Download PDFInfo
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- CN111229071A CN111229071A CN202010152627.4A CN202010152627A CN111229071A CN 111229071 A CN111229071 A CN 111229071A CN 202010152627 A CN202010152627 A CN 202010152627A CN 111229071 A CN111229071 A CN 111229071A
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- Prior art keywords
- diluter
- sulfuric acid
- concentrated sulfuric
- water
- inlet pipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/40—Mixing liquids with liquids; Emulsifying
- B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
- B01F23/451—Mixing liquids with liquids; Emulsifying using flow mixing by injecting one liquid into another
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
- B01F25/21—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cleaning Or Drying Semiconductors (AREA)
Abstract
The invention discloses a concentrated sulfuric acid diluter, comprising: the water-saving dilution device comprises a diluter body and a water inlet pipe, wherein an opening is formed in the lower part of the diluter body, an included angle is formed between a plane where the opening is located and a horizontal plane, and an exhaust port and a concentrated sulfuric acid inlet are formed in the side wall of the diluter body; the water inlet pipe extends into and extends to the opening from the upper end of the diluter body, water spray holes are distributed on the side wall of the lower end of the water inlet pipe, and an accommodating space is formed between the outer wall of the water inlet pipe and the inner wall of the diluter body. Therefore, the concentrated sulfuric acid diluter solves the problems that in the diluting process in the prior art, the local sulfuric acid concentration is sharply reduced, the local sulfuric acid temperature is suddenly increased, the service life of a water adding pipe is short, and the content of iron ions in finished acid is reduced.
Description
Technical Field
The invention belongs to the field of sulfuric acid dilution equipment, and particularly relates to a concentrated sulfuric acid diluter.
Background
The concentrated acid diluter is essential in the production process of sulfuric acid, and the traditional diluter is characterized in that a process water feeding pipeline is directly inserted below the liquid level. Dilution with concentrated sulfuric acid is accompanied by a large amount of heat evolution. The traditional dilution method is that a small amount of process water is added and locally mixed with a large amount of sulfuric acid in a pump tank, so that the concentration of the partial sulfuric acid in the pump tank, which is in contact with the water, is reduced violently, a large amount of heat is released, and the temperature of the local sulfuric acid rises suddenly. Meanwhile, as the specific gravity of water is much smaller than that of concentrated sulfuric acid, under the condition of incomplete mixing, the process water flows upwards to the sulfuric acid liquid level along the water adding pipe, so that the vertical submerged pump and other sleeves in the pump tank are corroded to different degrees, and even the safe operation of the submerged pump in the pump tank is influenced. The service life of the water feeding pipe is short, and the water feeding pipe needs to be replaced once in 3 days to 1 week. Later, the material of the water feeding pipe is replaced by a steel inner and outer lining polytetrafluoroethylene material or a pure polytetrafluoroethylene material, the service life of the water feeding pipe is prolonged, but the local sulfuric acid temperature is too high and exceeds the allowable use temperature of the polytetrafluoroethylene material, so that the polytetrafluoroethylene is softened, deformed and even falls off, and the effect is not ideal.
Therefore, the existing concentrated sulfuric acid diluter needs to be improved.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, one object of the present invention is to provide a concentrated sulfuric acid diluter, which solves the problems of severe local sulfuric acid concentration decrease, sudden local sulfuric acid temperature increase, short service life of the water feeding pipe, and high iron ion content in the reduced finished acid in the dilution process in the prior art.
In one aspect of the present invention, a concentrated sulfuric acid diluter is presented. According to an embodiment of the present invention, the concentrated sulfuric acid diluter includes:
the diluter comprises a diluter body, wherein an opening is formed in the lower part of the diluter body, an included angle is formed between a plane where the opening is located and a horizontal plane, and an exhaust port and a concentrated sulfuric acid inlet are formed in the side wall of the diluter body;
the water inlet pipe extends into and extends to the opening from the upper end of the diluter body, water spray holes are distributed on the side wall of the lower end of the water inlet pipe, and an accommodating space is formed between the outer wall of the water inlet pipe and the inner wall of the diluter body.
According to the concentrated sulfuric acid diluter provided by the embodiment of the invention, the water inlet pipe is arranged in the diluter body along the height direction of the diluter body, and the water spray holes are arranged on the side wall of the lower end of the water inlet pipe, so that the inlet water is sprayed out through the water spray holes to be contacted with the concentrated sulfuric acid, compared with the original mode that the process water is directly added below the liquid level of the concentrated sulfuric acid by adopting the water adding pipe, the problem that the sulfuric acid concentration in the contact area of the concentrated sulfuric acid and the water is reduced too fast and the local temperature is suddenly increased can be avoided by adopting the mode that the water is sprayed out through the water spray holes to be contacted with the concentrated sulfuric acid, the probability that the process water flows upwards along the pipe wall of the water adding pipe is reduced, meanwhile, the side wall of the diluter body is provided with the concentrated sulfuric acid inlet, the cooled concentrated sulfuric acid is added through the concentrated sulfuric acid inlet, the concentrated, the protection filler pipe simultaneously because the concentrated sulfuric acid of this application and water contact area temperature are not high to reduced the local corrosion of sulphuric acid to the diluter, obviously reduced the iron ion in the sulphuric acid. Therefore, the concentrated sulfuric acid diluter solves the problems that in the diluting process in the prior art, the local sulfuric acid concentration is sharply reduced, the local sulfuric acid temperature is suddenly increased, the service life of a water adding pipe is short, and the content of iron ions in finished acid is reduced.
In addition, the concentrated sulfuric acid diluter according to the above embodiment of the present invention may further have the following additional technical features:
in some embodiments of the present invention, the gas outlet is provided above the concentrated sulfuric acid inlet in a height direction of the diluter body.
In some embodiments of the present invention, the concentrated sulfuric acid inlet is located above the water spray hole in a height direction of the diluter body.
In some embodiments of the present invention, the concentrated sulfuric acid diluter further includes: the fixing assembly extends into the side wall of the diluter body and is abutted against the outer wall of the water inlet pipe to fix the water inlet pipe. Therefore, the stability of the water inlet pipe is improved.
In some embodiments of the invention, the securing assembly comprises: the nut is fixedly arranged on the side wall of the diluter body; the bolt is matched with the nut and penetrates through the nut and abuts against the outer wall of the water inlet pipe.
In some embodiments of the invention, the distance between the fixing component and the bottom end of the water inlet pipe accounts for 1/4-1/3 of the height of the water inlet pipe. Therefore, the stability of the water inlet pipe is improved.
In some embodiments of the invention, a plurality of layers of the water spraying holes are arranged along the height direction of the water inlet pipe, the water spraying holes of two adjacent layers are arranged in a staggered manner, each layer is provided with 2-3 water spraying holes, the distance between two adjacent water spraying holes in each layer is 100-150 mm, and the aperture of each water spraying hole is 8-20 mm. Therefore, the temperature of the concentrated sulfuric acid can be prevented from dropping too fast and the temperature of the contact area of the concentrated sulfuric acid and water can be prevented from rising suddenly on the basis of diluting the concentrated sulfuric acid.
In some embodiments of the present invention, a ratio of the pipe diameter of the water inlet pipe to the pipe diameter of the diluter body is 5-8.
In some embodiments of the present invention, the included angle is 40 to 50 degrees.
In some embodiments of the invention, the water inlet pipe is a polytetrafluoroethylene pipe or a lemidt alloy pipe.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a concentrated sulfuric acid diluter according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a concentrated sulfuric acid diluter according to still another embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In one aspect of the present invention, a concentrated sulfuric acid diluter is presented. According to an embodiment of the present invention, referring to fig. 1 and 2, the concentrated sulfuric acid diluter includes: diluter body 100 and inlet tube 200.
According to an embodiment of the present invention, referring to fig. 1, an opening 101 is formed below a diluter body 100, and an included angle is formed between a plane of the opening 101 and a horizontal plane, and an exhaust port 102 and a concentrated sulfuric acid inlet 103 are formed on a side wall of the diluter body 100. specifically, the exhaust port 102 is used for balancing a system pressure during a process of mixing concentrated sulfuric acid with water, and the concentrated sulfuric acid inlet 103 is used for adding cooled concentrated sulfuric acid (45-80 degrees centigrade) during the process of mixing concentrated sulfuric acid with water, the concentrated sulfuric acid is downwardly flushed along an outer wall of a water adding pipe to press water which may upwardly flush along the outer wall of the water adding pipe to achieve pre-dilution, thereby controlling a sulfuric acid temperature in a region near a water spraying hole of the water adding pipe, and protecting the water adding pipe, the diluter body 100 is vertically disposed in a concentrated sulfuric acid storage tank during use, and a lower end of the diluter body 100 extends to a vicinity of a bottom of the concentrated sulfuric acid storage tank, so that concentrated sulfuric acid in the storage tank enters the diluter body 100 through the opening below the diluter body 100, and is discharged through the opening after being diluted sulfuric acid is contacted with water, preferably, the concentrated sulfuric acid is discharged through the opening 101, the opening, the diluter body, the included angle α is 40-50 degrees, and the diluter body is preferably, the diluter is found by the inventor, the diluter body is disposed above the diluter body, thereby preventing the diluter body, and the diluter body, the.
According to the embodiment of the present invention, the water inlet pipe 200 extends into and extends from the upper end of the diluter body 100 to the opening 101, and the water spray holes 201 are distributed on the side wall of the lower end of the water inlet pipe 200, and the accommodating space 20 is formed between the outer wall of the water inlet pipe 200 and the inner wall of the diluter body 100. Specifically, the process water is added through the upper end of the water inlet pipe 200, and is diluted by being sprayed out through the water spraying holes 201 on the side wall of the lower end of the water inlet pipe and contacted with concentrated sulfuric acid, and compared with the prior method that the process water is directly added below the liquid level of the concentrated sulfuric acid through the water adding pipe, the method can avoid the problems that the concentration of the sulfuric acid is reduced too fast and the local temperature rises suddenly in the contact area of the concentrated sulfuric acid and water by adopting the water spraying holes to spray water and the concentrated sulfuric acid, and reduces the probability that the process water flows upwards along the pipe wall of the water.
Furthermore, the aperture of the water spraying hole 201 is 8 mm-20 mm. The inventor finds that: the smaller the diameter of the water jet hole 201, the smaller the difference in concentration at the time of pre-dilution, and the lower the risk of corrosion of the diluter body 100. Because the water adding amount of each sulfuric acid production device is different, the aperture of the water spraying hole 201 is optimized to be 8-20 mm according to engineering practice experience, and the diluting effect and the service life of the diluter are ensured. Under the condition of meeting the process requirements, the pore diameter is determined optimally. Preferably, the hole for water spraying 201 can distribute a plurality ofly to a plurality of hole for water spraying 201 evenly distributed on inlet tube 200 lower extreme lateral wall, simultaneously, the direction of height along inlet tube 200 is equipped with multilayer hole for water spraying 201, and adjacent two-layer hole for water spraying 201 staggers and arranges, every layer is equipped with 2 ~ 3 hole for water spraying 201, and the interval of two adjacent hole for water spraying 201 in every layer is 100 ~ 150mm, and the pipe diameter of inlet tube 200 pipe diameter is 5 ~ 8 with diluter body 100 pipe diameter proportion in addition. Preferably, the water inlet pipe 200 is a polytetrafluoroethylene pipe or a lemidt alloy pipe. Specifically, the material of the water inlet pipe 200 is selected according to the temperature of the sulfuric acid in the concentrated sulfuric acid storage tank, for example, for a low temperature (not higher than 100 ℃), the material of the water inlet pipe of the concentrated acid diluter is preferably polytetrafluoroethylene; for the higher temperature (more than 100 ℃ and less than 120 ℃), the material of the water feeding pipe of the concentrated acid diluter is preferably the Lumite alloy which can resist the change of the sulfuric acid temperature and the sulfuric acid concentration.
According to the concentrated sulfuric acid diluter provided by the embodiment of the invention, the water inlet pipe is arranged in the diluter body along the height direction of the diluter body, and the water spray holes are arranged on the side wall of the lower end of the water inlet pipe, so that the inlet water is sprayed out through the water spray holes to be contacted with the concentrated sulfuric acid, compared with the original mode that the process water is directly added below the liquid level of the concentrated sulfuric acid by adopting the water adding pipe, the problem that the sulfuric acid concentration in the contact area of the concentrated sulfuric acid and the water is reduced too fast and the local temperature is suddenly increased can be avoided by adopting the mode that the water is sprayed out through the water spray holes to be contacted with the concentrated sulfuric acid, the probability that the process water flows upwards along the pipe wall of the water adding pipe is reduced, meanwhile, the side wall of the diluter body is provided with the concentrated sulfuric acid inlet, the cooled concentrated sulfuric acid is added through the concentrated sulfuric acid inlet, the concentrated, the protection filler pipe simultaneously because the concentrated sulfuric acid of this application and water contact area temperature are not high to reduced the local corrosion of sulphuric acid to the diluter, obviously reduced the iron ion in the sulphuric acid. Therefore, the concentrated sulfuric acid diluter solves the problems that in the diluting process in the prior art, the local sulfuric acid concentration is sharply reduced, the local sulfuric acid temperature is suddenly increased, the service life of a water adding pipe is short, and the content of iron ions in finished acid is reduced.
Further, referring to fig. 2, the concentrated sulfuric acid diluter further includes a fixing component 300, and the fixing component 300 extends into the side wall of the diluter body 100 and abuts against the outer wall of the water inlet pipe 200 to fix the water inlet pipe 200 in the process of contacting concentrated sulfuric acid with water, thereby improving the stability of the water inlet pipe 200. Preferably, the fixing assembly 300 includes: a nut 31 and a bolt 32, wherein the nut 31 is fixedly arranged on the side wall of the diluter body 100; the bolt 32 is matched with the nut 31, and the bolt 32 passes through the nut 31 and abuts against the outer wall of the water inlet pipe 200. Specifically, a washer and a gasket are arranged between the bolt 32 and the nut 31, and the bolt 31 and the nut 32 are symmetrically arranged on both sides of the water inlet pipe 200, that is, the bolt 32 on both sides is stopped against the water inlet pipe 200 to fix the water inlet pipe. Preferably, the distance between the fixing assembly 300 and the bottom end of the water inlet pipe 200 is 1/4-1/3 of the height of the water inlet pipe 200.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A concentrated sulfuric acid diluter, comprising:
the diluter comprises a diluter body, wherein an opening is formed in the lower part of the diluter body, an included angle is formed between a plane where the opening is located and a horizontal plane, and an exhaust port and a concentrated sulfuric acid inlet are formed in the side wall of the diluter body;
the water inlet pipe extends into and extends to the opening from the upper end of the diluter body, water spray holes are distributed on the side wall of the lower end of the water inlet pipe, and an accommodating space is formed between the outer wall of the water inlet pipe and the inner wall of the diluter body.
2. The concentrated sulfuric acid diluter of claim 1, wherein the exhaust port is provided above the concentrated sulfuric acid inlet in a height direction of the diluter body.
3. The concentrated sulfuric acid diluter of claim 1 or 2, wherein the concentrated sulfuric acid inlet is located above the water spray hole in a height direction of the diluter body.
4. The concentrated sulfuric acid diluter of claim 1, further comprising: the fixing assembly extends into the side wall of the diluter body and is abutted against the outer wall of the water inlet pipe to fix the water inlet pipe.
5. The concentrated sulfuric acid diluter of claim 4 wherein the fixed assembly comprises:
the nut is fixedly arranged on the side wall of the diluter body;
the bolt is matched with the nut and penetrates through the nut and abuts against the outer wall of the water inlet pipe.
6. The concentrated sulfuric acid diluter of claim 5, wherein the distance between the fixing component and the bottom end of the water inlet pipe is 1/4-1/3 of the height of the water inlet pipe.
7. The concentrated sulfuric acid diluter of claim 1, wherein a plurality of layers of said water spray holes are provided along a height direction of said water inlet pipe, and said water spray holes of two adjacent layers are arranged in a staggered manner,
each layer is provided with 2-3 water spray holes, the distance between every two adjacent water spray holes in each layer is 100-150 mm, and the aperture of each water spray hole is 8-20 mm.
8. The concentrated sulfuric acid diluter of claim 1, wherein the ratio of the pipe diameter of the water inlet pipe to the pipe diameter of the diluter body is 5-8.
9. The concentrated sulfuric acid diluter of claim 1, wherein the angle is 40 to 50 degrees.
10. The concentrated sulfuric acid diluter of claim 1 wherein the water inlet pipe is a polytetrafluoroethylene pipe or a lemidt alloy pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010152627.4A CN111229071A (en) | 2020-03-06 | 2020-03-06 | Concentrated sulfuric acid diluter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010152627.4A CN111229071A (en) | 2020-03-06 | 2020-03-06 | Concentrated sulfuric acid diluter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111229071A true CN111229071A (en) | 2020-06-05 |
Family
ID=70862080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010152627.4A Pending CN111229071A (en) | 2020-03-06 | 2020-03-06 | Concentrated sulfuric acid diluter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111229071A (en) |
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2020
- 2020-03-06 CN CN202010152627.4A patent/CN111229071A/en active Pending
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