CN220125884U - Hydrogen chloride tail gas treatment tower - Google Patents
Hydrogen chloride tail gas treatment tower Download PDFInfo
- Publication number
- CN220125884U CN220125884U CN202321145732.0U CN202321145732U CN220125884U CN 220125884 U CN220125884 U CN 220125884U CN 202321145732 U CN202321145732 U CN 202321145732U CN 220125884 U CN220125884 U CN 220125884U
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- CN
- China
- Prior art keywords
- tail gas
- tower body
- hydrogen chloride
- tower
- gas treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000007789 gas Substances 0.000 title claims abstract description 50
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 229910000041 hydrogen chloride Inorganic materials 0.000 title claims abstract description 25
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000002253 acid Substances 0.000 claims abstract description 12
- 239000007921 spray Substances 0.000 claims abstract description 10
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 239000012670 alkaline solution Substances 0.000 claims description 9
- 239000000243 solution Substances 0.000 claims description 9
- 239000011152 fibreglass Substances 0.000 claims description 4
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 abstract description 14
- 229910052939 potassium sulfate Inorganic materials 0.000 abstract description 13
- 235000011151 potassium sulphates Nutrition 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 7
- 239000006227 byproduct Substances 0.000 abstract description 7
- 239000000460 chlorine Substances 0.000 abstract description 7
- 229910052801 chlorine Inorganic materials 0.000 abstract description 7
- 230000003472 neutralizing effect Effects 0.000 abstract description 7
- 239000002689 soil Substances 0.000 description 11
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 10
- 239000003337 fertilizer Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 239000001103 potassium chloride Substances 0.000 description 5
- 235000011164 potassium chloride Nutrition 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- 244000061176 Nicotiana tabacum Species 0.000 description 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000020477 pH reduction Effects 0.000 description 2
- 229940072033 potash Drugs 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 235000015320 potassium carbonate Nutrition 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- JTNCEQNHURODLX-UHFFFAOYSA-N 2-phenylethanimidamide Chemical compound NC(=N)CC1=CC=CC=C1 JTNCEQNHURODLX-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 244000241235 Citrullus lanatus Species 0.000 description 1
- 235000012828 Citrullus lanatus var citroides Nutrition 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 208000035240 Disease Resistance Diseases 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- 240000006240 Linum usitatissimum Species 0.000 description 1
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 description 1
- 244000061456 Solanum tuberosum Species 0.000 description 1
- 235000002595 Solanum tuberosum Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 244000269722 Thea sinensis Species 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 241000219094 Vitaceae Species 0.000 description 1
- 235000009754 Vitis X bourquina Nutrition 0.000 description 1
- 235000012333 Vitis X labruscana Nutrition 0.000 description 1
- 240000006365 Vitis vinifera Species 0.000 description 1
- 235000014787 Vitis vinifera Nutrition 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052934 alunite Inorganic materials 0.000 description 1
- 239000010424 alunite Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000021021 grapes Nutrition 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 meanwhile Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 229910000343 potassium bisulfate Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002681 soil colloid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 235000013616 tea Nutrition 0.000 description 1
- KPZTWMNLAFDTGF-UHFFFAOYSA-D trialuminum;potassium;hexahydroxide;disulfate Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Al+3].[Al+3].[Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O KPZTWMNLAFDTGF-UHFFFAOYSA-D 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model provides a hydrogen chloride tail gas treatment tower, which comprises a base, a tower body arranged on the base, wherein a tail gas inlet is arranged below one side of the tower body, a neutralizing liquid discharge port is arranged below the other side of the tower body, a spray head is arranged at the top of the tower body, and a gas outlet is arranged above one side of the tower body; a discharge control valve is also arranged at the liquid discharge port; the hydrogen chloride tail gas treatment tower has a simple structure, and can produce byproducts when potassium sulfate is produced: hydrochloric acid, tail gas treatment, neutralization treatment of tail gas after hydrochloric acid production, reduction of emission of acid harmful gas, avoidance of direct emission of harmful gas such as chlorine and hydrogen chloride into air, pollution to the environment, and reuse of the generated neutralization solution, and is very economical and applicable.
Description
Technical Field
The utility model belongs to the technical field of potassium sulfate production equipment, and particularly relates to a hydrogen chloride tail gas treatment tower.
Background
The potassium sulfate is a potash fertilizer prepared by mixing natural sulfate potassium ore such as alunite and chloride and calcining and decomposing at high temperature. The chemical formula is K 2 SO 4 . Potassium content (K) 2 50% -52% of O). White diamond or hexagonal crystal is easy to dissolve in water, has small hygroscopicity, belongs to physiological acid fertilizer, and has strong quick action. After being applied to soil, potassium (K+) is dissolved in soil solution and exists in an ionic state, and can be selectively absorbed by plants or adsorbed by soil colloid. After adsorption, caSO with low solubility is formed in calcareous soil 4 Formation of H in acid soil 2 SO 4 . Thus, the acidification of the soil is less than the HCl formed after potassium chloride application. Is suitable for various soil and crops, but should be preferentially distributed to crops like tobacco, potato, grape, flax and the like which are potassium-like and chlorine-like. Can be used as base fertilizer, additional fertilizer, seed fertilizer and external root fertilizer. The application should be divided into several times on sandy soil to avoid leaching of potassium. On acid soil, the fertilizer should be applied in combination with alkaline fertilizers such as lime to prevent further acidification of the soil and influence on plant growth. The potassium sulfate is an important variety in potash fertilizer, is a high-quality fertilizer, has a saline-alkali soil index of only about 40% of that of potassium chloride, and is particularly suitable for some commercial crops such as tobacco, watermelons, tea, oranges, grapes and the like which are free of chlorine. The potassium sulfate can not only improve the crop yield, but also improve the quality of the crops, and can improve the disease resistance of the crops when used for sulfur-deficient soil.
At present, the main methods for producing potassium sulfate are as follows: man Ha Mfa, association method, double decomposition method, etc. Wherein, man Ha Mfa is a process for producing potassium sulfate by using sulfuric acid and potassium chloride as raw materials. The production method comprises the steps of carrying out the internal reaction of potassium chloride and concentrated sulfuric acid in a Man Ha Mlu, firstly, generating potassium bisulfate by the reaction, and then continuously reacting with the potassium chloride at a higher temperature to generate potassium sulfate; natural gas is utilized to supply heat in the combustion chamber of the reaction furnace, the temperature is 1000-1100 ℃, and the temperature of the reaction chamber is controlled at 520-540 ℃. Cooling, crushing and partially neutralizing the reaction product to obtain a product, and cooling, washing and absorbing a byproduct HCl to obtain hydrochloric acid with the mass fraction of 32-35%.
In the prior art, tail gas after hydrochloric acid which is a byproduct in the production process of potassium sulfate is treated is generally discharged into the air directly without being treated, and part of the tail gas contains harmful gases such as chlorine, hydrogen chloride and the like and is directly discharged into the air, so that the environment is polluted.
Disclosure of Invention
The utility model aims to provide a hydrogen chloride tail gas treatment tower which is used for neutralizing tail gas after hydrochloric acid treatment which is a byproduct in the potassium sulfate production process.
The hydrogen chloride tail gas treatment tower comprises a base, a tower body arranged on the base, wherein a tail gas inlet is arranged below one side of the tower body, a neutralizing liquid discharge port is arranged below the other side of the tower body, a spray head is arranged at the top of the tower body, and a gas outlet is arranged above one side of the tower body; and a discharge control valve is also arranged at the liquid discharge port.
Further, the bottom surface of the tower body is an inclined surface, and the side provided with the liquid discharge port is the lower side of the inclined surface.
Further, supporting legs are arranged below the tower body.
Further, the tower body is made of acid-resistant glass fiber reinforced plastic.
Further, the liquid sprayed by the spray head is alkaline solution.
Further, the alkaline solution is sodium hydroxide solution.
The hydrogen chloride tail gas treatment tower provided by the utility model has a simple structure, and can produce byproducts when potassium sulfate is produced: hydrochloric acid, tail gas treatment, neutralization treatment of tail gas after hydrochloric acid production, reduction of emission of acid harmful gas, avoidance of direct emission of harmful gas such as chlorine and hydrogen chloride into air, pollution to the environment, and reuse of the generated neutralization solution, and is very economical and applicable.
The utility model will now be described in detail with reference to the drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of a hydrogen chloride tail gas treatment tower.
In the figure: 1. a base; 2. a tower body; 3. a discharge control valve; 4. a spray head; 5. a tail gas inlet; 6. a neutralizing liquid discharge port; 7. a bottom surface; 8. and (5) supporting legs.
Detailed Description
The following detailed description, structural features and functions of the present utility model are provided with reference to the accompanying drawings and examples in order to further illustrate the technical means and effects of the present utility model to achieve the predetermined objects.
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "aligned," "overlapping," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operate in a specific orientation, and therefore should not be construed as limiting the present utility model.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second" may include one or more such features, either explicitly or implicitly; in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
Example 1
The embodiment provides a hydrogen chloride tail gas treatment tower as shown in fig. 1, which comprises a base 1 and a tower body 2 arranged on the base 1, wherein a tail gas inlet 5 is arranged below one side of the tower body 2, a neutralization liquid discharge port 6 is arranged below the other side of the tower body 2, a spray head 4 is arranged at the top of the tower body 2, and liquid sprayed by the spray head 4 is alkaline solution; an air outlet 9 is arranged above one side of the tower body 2; a discharge control valve 3 is also arranged at the liquid discharge port 6; in practical application, the tail gas after hydrochloric acid production enters the tower body 2 of the tail gas treatment tower through the tail gas inlet 5, and the spray head 4 above the tower body 2 sprays alkaline solution, so that hydrogen chloride in the tail gas reacts with the alkaline solution, meanwhile, chlorine in the tail gas reacts with the alkaline solution, and if harmless gas is generated, the harmful gas can be discharged through the neutralizing liquid discharge port 6.
Further, the bottom surface 7 of the tower body 2 is a slope, and the side provided with the liquid discharge port 6 is a low side of the slope.
Further, support legs 8 are arranged below the tower body 2, and the support legs 8 mainly play a supporting role.
Further, the tower body 2 is made of acid-resistant glass fiber reinforced plastic, and the tail gas treatment tower aims at byproducts in the potassium sulfate production process: hydrochloric acid is used for treatment, so that the tower body 2 is made of acid-resistant and corrosion-resistant materials; the acid-resistant glass fiber reinforced plastic has the characteristics of high strength, heat resistance and excellent acid resistance, and is very suitable for the hydrogen chloride tail gas treatment tower; and the generated neutralization solution can be reused, so that the method is very economical and applicable.
Further, the alkaline solution is sodium hydroxide solution, so that hydrogen chloride in the tail gas reacts with the sodium hydroxide solution to generate water and sodium chloride; chlorine in the tail gas reacts with sodium hydroxide solution to generate oxygen and sodium chloride, and the oxygen is discharged from the neutralizing liquid discharge port 6.
In summary, the hydrogen chloride tail gas treatment tower provided by the utility model has a simple structure, and can be used for producing byproducts during potassium sulfate production: hydrochloric acid, tail gas treatment, neutralization treatment of tail gas after hydrochloric acid production, reduction of emission of acid harmful gas, avoidance of direct emission of harmful gas such as chlorine and hydrogen chloride into air, pollution to the environment, and reuse of the generated neutralization solution, and is very economical and applicable.
The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.
Claims (5)
1. The utility model provides a hydrogen chloride tail gas treatment tower which characterized in that: the device comprises a base (1), a tower body (2) arranged on the base (1), a tail gas inlet (5) is formed in the lower side of one side of the tower body (2), a neutralization liquid discharge port (6) is formed in the lower side of the other side of the tower body (2), a spray head (4) is arranged at the top of the tower body (2), and an air outlet (9) is formed in the upper side of one side of the tower body (2); a discharge control valve (3) is further arranged at the liquid discharge port (6); the bottom surface (7) of the tower body (2) is an inclined surface, and the side provided with the liquid discharge port (6) is the lower side of the inclined surface.
2. A hydrogen chloride tail gas treatment tower as claimed in claim 1, wherein: support legs (8) are arranged below the tower body (2).
3. A hydrogen chloride tail gas treatment tower as claimed in claim 1, wherein: the tower body (2) is made of acid-resistant glass fiber reinforced plastic.
4. A hydrogen chloride tail gas treatment tower as claimed in claim 1, wherein: the liquid sprayed by the spray head (4) is alkaline solution.
5. A hydrogen chloride tail gas treatment tower as defined in claim 4, wherein: the alkaline solution is sodium hydroxide solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321145732.0U CN220125884U (en) | 2023-05-12 | 2023-05-12 | Hydrogen chloride tail gas treatment tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321145732.0U CN220125884U (en) | 2023-05-12 | 2023-05-12 | Hydrogen chloride tail gas treatment tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220125884U true CN220125884U (en) | 2023-12-05 |
Family
ID=88951007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321145732.0U Active CN220125884U (en) | 2023-05-12 | 2023-05-12 | Hydrogen chloride tail gas treatment tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220125884U (en) |
-
2023
- 2023-05-12 CN CN202321145732.0U patent/CN220125884U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |