CN111841266A - Automatic dehydrating tower of concentrated sulfuric acid - Google Patents
Automatic dehydrating tower of concentrated sulfuric acid Download PDFInfo
- Publication number
- CN111841266A CN111841266A CN202010701487.1A CN202010701487A CN111841266A CN 111841266 A CN111841266 A CN 111841266A CN 202010701487 A CN202010701487 A CN 202010701487A CN 111841266 A CN111841266 A CN 111841266A
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- acid
- tower body
- sulfuric acid
- concentrated sulfuric
- tower
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/263—Drying gases or vapours by absorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
- B01D46/121—V-type arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/28—Selection of materials for use as drying agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/10—Inorganic absorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses an automatic dehydrating tower for concentrated sulfuric acid, which comprises a cylindrical tower body, wherein a top cover is fixed at the top of the tower body, an air inlet is formed in the top cover, the air inlet is connected with the outside air through a bent pipe, one end of the bent pipe is fixed at the top of the tower body and used for inputting the air into the tower body, an acid inlet is formed in the tower body, an acid inlet pipe is connected to the acid inlet, one end of the acid inlet pipe is fixed at the bottom of the tower body, the other end of the acid inlet pipe is connected to a concentrated sulfuric acid storage tank body, an acid outlet is formed in the side wall of the tower body, an acid outlet pipe is connected to the acid outlet, one end of the acid outlet pipe is fixed at the acid outlet, the other end of the acid outlet pipe is connected to the concentrated sulfuric acid storage tank body, a baffle is fixed at the middle position of the top in the tower body, the. The invention not only improves the dehydration efficiency of concentrated sulfuric acid, but also realizes full-automatic acid addition, and is safe and reliable.
Description
Technical Field
The invention relates to the technical field of chemical industry, in particular to an automatic dehydrating tower for concentrated sulfuric acid.
Background
Concentrated sulfuric acid is an aqueous solution of pure H2SO4 with the mass fraction of more than or equal to 70%. It is a conventional chemical raw material, and because concentrated sulfuric acid contains a large amount of unionized sulfuric acid molecules (acid molecules in a strong acid solution are not necessarily all ionized into ions, and the strength of acid is opposite), concentrated sulfuric acid has water absorption and dehydration property, especially strong water absorption, can be mixed with water in any proportion, and releases a large amount of dilution heat. In chemical production, in order to keep the air pressure in the tank body balanced with the air pressure in the outside air, the outside air is usually connected to the tank body, and this operation can make the water vapor in the air enter the tank body, so that the concentrated sulfuric acid is diluted due to the strong water absorption of the concentrated sulfuric acid, in order to prevent the concentrated sulfuric acid from being diluted, a dewatering device is usually connected to the concentrated sulfuric acid tank body, and the water vapor in the air is dewatered by the dewatering device, the principle is that a certain concentrated sulfuric acid is added to the dewatering device, the water vapor in the air is absorbed and diluted by the concentrated sulfuric acid, and the diluted concentrated sulfuric acid is directly and circularly conveyed to the tank body for storing the concentrated sulfuric acid, because this part of the diluted concentrated sulfuric acid can be ignored for the concentrated sulfuric acid in the whole tank body, but the dewatering device also has problems, such as the risk of operators is increased in the manual acid adding process, but also results in a sudden increase of air in the dehydration engine, which results in the formation of acid mist, which eventually causes the sulfuric acid to deteriorate or corrode the dehydration engine.
Disclosure of Invention
The invention provides an automatic dehydrating tower for concentrated sulfuric acid, which not only improves the dehydrating efficiency of the concentrated sulfuric acid, but also realizes full-automatic acid addition, and is safe and reliable.
The technical solution of the invention is to provide an automatic dehydrating tower for concentrated sulfuric acid, which comprises a cylindrical tower body, wherein a top cover is fixed at the top of the tower body, an air inlet is formed in the top cover, the air inlet is connected with the outside air through a bent pipe, one end of the bent pipe is fixed at the top of the tower body and is used for inputting air into the tower body, an acid inlet is formed in the tower body, an acid inlet pipe is connected onto the acid inlet, one end of the acid inlet pipe is fixed at the bottom of the tower body, the other end of the acid inlet pipe is connected to a concentrated sulfuric acid storage tank body, an acid outlet is formed in the side wall of the tower body, an acid outlet pipe is connected onto the acid outlet, one end of the acid outlet pipe is fixed at the acid outlet, the other end of the acid outlet pipe is connected to the concentrated sulfuric acid storage tank body, a baffle is fixed at the middle position of the top in the tower body, the, one end of the filter plate is fixed on the inner wall of the tower body, the other end of the filter plate is fixed on the end part of the baffle plate, a plurality of convex plates are uniformly distributed on the inner wall of the tower body, and the convex plates incline towards the bottom of the tower body.
Preferably, the acid inlet pipe and the acid outlet pipe are both bent pipes and are fixed on the tower body through flanges.
Preferably, a gasket is further arranged between the flange and the tower end.
Preferably, the top cover is provided with an acid adding port, and the acid adding port is provided with a flange cover.
Preferably, the acid inlet pipe is a two-section type pipeline, namely a first pipeline and a second pipeline, the first pipeline is connected to the bottom of the tower body, the second pipeline is connected to the concentrated sulfuric acid storage tank body, and the first pipeline and the second pipeline are connected through a ball valve.
Preferably, the filter plate is a corrugated plate, and the wave crest of the corrugated plate is open.
Preferably, the baffle ends are wavy and the peaks are rounded.
Preferably, the plurality of convex plates are distributed on the inner peripheral wall of the tower body in a staggered manner.
The invention relates to an automatic dehydrating tower for concentrated sulfuric acid.A filter plate is arranged in a tower body and is close to an air inlet, the filter plate is wavy and plays a role in buffering air entering from the air inlet, but is not directly contacted with the concentrated sulfuric acid in a large amount, and the filter plate is provided with an opening so that the air can be smoothly contacted with the concentrated sulfuric acid through the opening; the inner wall of the tower body is provided with a plurality of convex plates, a large number of convex plates can collect concentrated sulfuric acid and are used for enlarging the water absorption reaction area of the concentrated sulfuric acid and greatly increasing the water absorption efficiency of the sulfuric acid, the convex plates are all inclined towards the bottom of the tower body, the inclination angle is controlled between 45 and 90 degrees (the angle formed between the convex plates and the inner wall of the convex plate facing the bottom of the tower body), the sulfuric acid gathered on the convex plates can quickly fall back into the tower body after absorbing water, the sulfuric acid on the convex plates is prevented from being accumulated on the surfaces of the convex plates for a long time and generating water stains on the surfaces of the convex plates, and finally the sulfuric acid is; the top intermediate position is equipped with a face shield in the tower body, just in time will add sour mouthful, acid outlet and air intlet keep apart, and too big sulphuric acid flow when preventing to add sour forms the acid mist with the inside air of tower body, and prevents the impact that forms, directly expels the acid mist to air intlet.
Drawings
FIG. 1 is a sectional view of the structure of the present invention.
FIG. 2 is a sectional view of the acid inlet pipe structure of the present invention.
Fig. 3 is a schematic view of the baffle structure of the present invention.
Fig. 4 is a schematic view of the filter plate structure of the present invention.
FIG. 5 is a top view of the location distribution of the raised plates of the present invention.
Fig. 6 is a front view of a second embodiment of the location distribution of the raised plate of the present invention.
Wherein 1, a tower body; 2. a top cover; 3. bending the pipe; 4. an acid inlet pipe; 41. a first conduit; 42. a second conduit; 43. a ball valve; 5. an acid outlet pipe; 6. adding an acid port; 7. an air inlet; 8. a baffle plate; 9. a filter plate; 91. an opening; 10. a convex plate; 11. a flange; 12. and (7) a gasket.
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 accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In a first embodiment, as shown in fig. 1, the structure of the present invention includes a cylindrical tower body 1, a top cover 2 is fixed on the top of the tower body 1, an air inlet 7 is formed on the top cover 2, the air inlet 7 is connected with the outside air through a bent pipe 3, one end of the bent pipe 3 is fixed on the top of the tower body 1 for inputting the air into the tower body 1, an acid inlet is formed on the tower body 1, an acid inlet pipe 4 is connected to the acid inlet, one end of the acid inlet pipe 4 is fixed on the bottom of the tower body 1, the other end of the acid inlet pipe is connected to a concentrated sulfuric acid storage tank, an acid outlet is formed on the side wall of the tower body 1, an acid outlet pipe 5 is connected to the acid outlet, one end of.
In this embodiment, as shown in fig. 2, the acid inlet pipe 4 is a two-section type pipe, that is, a first pipe 41 and a second pipe 42, the first pipe 41 is connected to the bottom of the tower body 1, the second pipe 42 is connected to the concentrated sulfuric acid storage tank, the first pipe 41 and the second pipe 42 are connected through a ball valve 43, and the ball valve 43 can control the recovery flow more accurately, which is convenient and practical.
The acid inlet pipe 4 and the acid outlet pipe 5 are both bent pipes and are fixed on the tower body 1 through flanges 11. That is, the first pipeline 41 and the second pipeline 42 are both bent pipes, the conventional square pipe has a bent edge, concentrated sulfuric acid is accumulated at the inner edge of the pipe, so that deterioration is caused, and the bent pipe has no liquid accumulation phenomenon due to the fact that the inner wall is smooth and is a curved surface transition.
The middle position of top is fixed with a smooth surface's baffle 8 in the tower body 1, baffle 8 extends downwards along the 1 direction of height of tower body to under the concentrated sulfuric acid liquid level, baffle 8 with air intlet 7 with add sour mouthful 6, the acid outlet separates, the concrete height of baffle 8 can suitably be adjusted according to the height position of tower body 1 with the acid outlet, when the concentrated sulfuric acid that additionally adds gets into tower body 1 inside through adding sour mouthful 6, prevent that liquid from spattering filter 9 and acid outlet, the most important prevents that concentrated sulfuric acid liquid from directly pouring into in the tower body 1, strike the stoste in the tower body 1, make concentrated sulfuric acid and the air in the tower body 1 form acid mist, and acid mist not only corrodes tower body 1, and influence concentrated sulfuric acid water absorption performance.
In addition, as shown in fig. 3, the end of the baffle 8 facing the bottom of the tower body 1 is wavy, and the wave crest and the wave trough are both in the shape of a circular horn, so that the liquid suspended on the baffle does not accumulate in a large amount, but naturally falls back to the bottom of the tower body 1,
it should be noted that, the acid outlet sets up in 1 lateral part of tower body department and is close to the inside liquid level department of tower body 1, and acid outlet opening 91 is great, and the concentrated sulfuric acid that aim at came in from adding acid mouth 6 produces huge impact with the sulfuric acid liquid of 1 bottom of tower body, prevents that the concentrated sulfuric acid liquid that spatters from splashing to 1 inner wall of tower body for concentrated sulfuric acid liquid most spatters to 8 surfaces of baffle, avoids sulfuric acid liquid directly to be stained with on 1 inner wall of tower body.
A filter plate 9 is fixed in the tower body 1, the filter plate 9 is horizontally arranged and positioned under an air inlet 7, one end of the filter plate 9 is fixed on the tower body 1, the other end is fixed on the surface of a baffle plate 8, the filter plate 9 covers the cross section of a half of the tower body 1 and is separated from an acid outlet through the baffle plate 8, as shown in figure 5, a plurality of convex plates 10 are uniformly distributed on the inner wall of the tower body 1, the convex plates 10 can be fixed on the inner wall of the tower body 1 or extend from the inner wall of the tower body 1, the size of the convex plates 10 can be adjusted according to the size and the capacity of the actual tower body 1, the convex plates 10 incline to a certain angle towards the bottom direction of the tower body 1, the inclination angle is controlled between 45 and 90 degrees (namely the angle formed between the convex plates 10 and the inner wall of the convex plates 10 towards the bottom direction of the tower body 1), and because sulfuric acid liquid splashed by, because the convex plate 10 inclines, the liquid will slowly slide down and fall back to the bottom of the tower bottom, in the process, the liquid on the convex plate 10 will absorb the water vapor in the air in the process of flowing back to the bottom of the tower body 1, it should be noted here that, because of the isolation effect of the filter plate 9 and the baffle plate 8, the sulfuric acid liquid will not directly splash on the convex plate 10 on the inner wall of the tower body 1 between the filter plate 9 and the air inlet 7, but the reaction at the position is the position where the air and the sulfuric acid are firstly contacted with each other, so the reaction at the position should be most sufficient, so the sulfuric acid at the position will form dilute sulfuric acid after absorbing water, and the convex plate 10 can increase the contact area of the sulfuric acid and the air.
Still be equipped with gasket 12 between flange 11 and the 1 tip of tower body, because concentrated sulfuric acid can be followed the takeover and revealed unavoidably, and then corrode the pipeline, consequently gasket 12 plays the effect of keeping apart, in addition, sulphuric acid absorbs water the back, can produce certain heat, and is so for a long time, and the pipeline can produce the deformation for pipeline kneck produces reveals, and gasket 12 just in time can play the effect of buffering.
The acid adding port 6 on the top cover 2 is provided with a flange cover, so that the acid adding port 6 can be used as an acid adding port or a standby acid outlet port, and the purpose is selected according to actual requirements.
As shown in figure 4, the filter plate 9 is a wavy corrugated plate, the opening 91 is arranged at the crest, the opening 91 is in a long strip shape, the opening 91 is arranged upwards, when the air at the air inlet 7 moves downwards and passes through the filter plate 9, most of the air can reach the bottom of the tower bottom through the opening 91, so that the air reacts with concentrated sulfuric acid at the bottom of the tower body 1, thereby achieving the dehydration effect, because the lower surface of the filter plate 9 is in a smooth wave shape, sulfuric acid liquid is not easy to hang on the filter plate, most of the air can fall back to the bottom of the tower bottom, in addition, the opening 91 is arranged above, so that the sulfuric acid above the opening 91 absorbs water to become dilute sulfuric acid and then directly falls onto the surface of the filter plate 9, and can not flow to the bottom of the tower body 1 from the opening 91, thereby preventing the sulfuric acid at the bottom of the tower body 1 from becoming dilute, and the dilute, where it is closest to the outside air and therefore where it is most safe and reliable to replace the filter plate 9.
In the second embodiment, as shown in fig. 6, the convex plates 107 may be distributed in a staggered manner, that is, staggered intervals are distributed between each row or each column, so that the sulfuric acid liquid can be attached to the convex plates 10 to the maximum extent, the sulfuric acid liquid collecting area is increased, and meanwhile, the liquid falling path is shortened, so that the liquid falls back to the bottom of the tower body 1 quickly and the convex plates 10 do not interfere with each other, thereby facilitating the sulfuric acid to react with air sufficiently. The rest of the contents are the same as the first embodiment.
It should be noted here that the acid inlet, the acid outlet and the gas inlet are realized by pumps, and the specific type and the working principle mode are not described here.
The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary, and various changes made within the scope of the independent claims of the present invention are within the scope of the present invention.
Claims (8)
1. An automatic dehydrating tower for concentrated sulfuric acid comprises a cylindrical tower body, wherein a top cover is fixed at the top of the tower body, an air inlet is formed in the top cover and is connected with outside air through a bent pipe, one end of the bent pipe is fixed at the top of the tower body and is used for inputting air into the tower body, an acid inlet is formed in the tower body and is connected with an acid inlet pipe, one end of the acid inlet pipe is fixed at the bottom of the tower body, the other end of the acid inlet pipe is connected with a concentrated sulfuric acid storage tank body, an acid outlet is formed in the side wall of the tower body, an acid outlet pipe is connected with the acid outlet pipe, one end of the acid outlet pipe is fixed at the acid outlet, the other end of the acid outlet pipe is connected with the concentrated sulfuric acid storage tank body, a baffle is fixed at the middle position of the top in the tower body and extends downwards along the height direction of the tower body, a filter, one end of the filter plate is fixed on the inner wall of the tower body, the other end of the filter plate is fixed on the end part of the baffle plate, a plurality of convex plates are uniformly distributed on the inner wall of the tower body, and the convex plates incline towards the bottom of the tower body.
2. The concentrated sulfuric acid automatic dehydration tower according to claim 1, characterized in that: the acid inlet pipe and the acid outlet pipe are both bent pipes and are fixed on the tower body through flanges.
3. The concentrated sulfuric acid automatic dehydration tower according to claim 2, characterized in that: and a gasket is also arranged between the flange and the end part of the tower body.
4. The concentrated sulfuric acid automatic dehydration tower according to claim 1, characterized in that: the top cover is provided with an acid adding port, and a flange cover is arranged on the acid adding port.
5. The concentrated sulfuric acid automatic dehydrating tower of claim 1 or 2, characterized in that: the acid inlet pipe is a two-section type pipeline, namely a first pipeline and a second pipeline, the first pipeline is connected to the bottom of the tower body, the second pipeline is connected to the concentrated sulfuric acid storage tank body, and the first pipeline and the second pipeline are connected through a ball valve.
6. The concentrated sulfuric acid automatic dehydration tower according to claim 1, characterized in that: the filter is a wavy fold plate, and the wave crest of the filter is opened.
7. The concentrated sulfuric acid automatic dehydration tower according to claim 1, characterized in that: the end part of the baffle is wavy, and the wave crest is rounded.
8. The concentrated sulfuric acid automatic dehydration tower according to claim 1, characterized in that: the plurality of convex plates are distributed on the inner peripheral wall of the tower body in a staggered manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010701487.1A CN111841266A (en) | 2020-07-20 | 2020-07-20 | Automatic dehydrating tower of concentrated sulfuric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010701487.1A CN111841266A (en) | 2020-07-20 | 2020-07-20 | Automatic dehydrating tower of concentrated sulfuric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111841266A true CN111841266A (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010701487.1A Pending CN111841266A (en) | 2020-07-20 | 2020-07-20 | Automatic dehydrating tower of concentrated sulfuric acid |
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| CN (1) | CN111841266A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113911576A (en) * | 2021-12-14 | 2022-01-11 | 山东彩客东奥化学有限公司 | Chemical material holding vessel prevents device that absorbs water |
-
2020
- 2020-07-20 CN CN202010701487.1A patent/CN111841266A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113911576A (en) * | 2021-12-14 | 2022-01-11 | 山东彩客东奥化学有限公司 | Chemical material holding vessel prevents device that absorbs water |
| CN113911576B (en) * | 2021-12-14 | 2022-03-01 | 山东彩客东奥化学有限公司 | Chemical material holding vessel prevents device that absorbs water |
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