CN112316688A - Hydrochloric acid absorption tower and process for producing hydrochloric acid - Google Patents
Hydrochloric acid absorption tower and process for producing hydrochloric acid Download PDFInfo
- Publication number
- CN112316688A CN112316688A CN202011123526.0A CN202011123526A CN112316688A CN 112316688 A CN112316688 A CN 112316688A CN 202011123526 A CN202011123526 A CN 202011123526A CN 112316688 A CN112316688 A CN 112316688A
- Authority
- CN
- China
- Prior art keywords
- absorption
- absorption tower
- hydrochloric acid
- gas
- hydrogen chloride
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
-
- 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
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
- B01D53/82—Solid phase processes with stationary reactants
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
Abstract
The invention discloses a hydrochloric acid absorption tower, which comprises an absorption tower body and a lye tank, wherein a gas overflow port is arranged on the lye tank, the gas overflow port is communicated with the interior of the absorption tower body, a primary absorption area, a secondary absorption area, a demisting area and a drying area are sequentially arranged in the absorption tower body from bottom to top, and an exhaust port is arranged at the top of the absorption tower body; according to the hydrochloric acid absorption tower, the unabsorbed hydrogen chloride gas is absorbed by the multistage absorption regions, and the absorption rate is high.
Description
Technical Field
The invention belongs to the field of hydrochloric acid production and preparation, and particularly relates to a hydrochloric acid absorption tower and a process for producing hydrochloric acid.
Background
Hydrochloric acid (hydrogen chloride solution) is a chemical substance commonly used in industrial production, a large amount of hydrogen chloride gas molecules are often generated or exist to overflow in the preparation of hydrochloric acid or in the use of hydrochloric acid, the hydrogen chloride gas molecules are colorless and odorless and have high toxicity and great and obvious harm to human bodies, organisms or articles, and equipment for absorbing and treating the overflowing hydrogen chloride molecules is required to be arranged in the production or use of hydrochloric acid so as to prevent the hydrogen chloride molecules from overflowing in the air and avoid causing harm to the human bodies, the organisms or the articles.
Disclosure of Invention
The invention aims to provide a hydrochloric acid absorption tower and a process for producing hydrochloric acid, wherein the absorption rate of the hydrochloric acid absorption tower on hydrogen chloride molecules in tail gas is high in the production of the hydrochloric acid.
The hydrochloric acid absorption tower comprises an absorption tower body and a lye tank, wherein a gas overflow port is formed in the lye tank and is communicated with the interior of the absorption tower body, a primary absorption area, a secondary absorption area, a demisting area and a drying area are sequentially arranged in the absorption tower body from bottom to top, and an exhaust port is formed in the top of the absorption tower body.
Preferably, the lye tank is arranged at the bottom of the absorption tower body, the gas overflow outlet is arranged on the upper surface of the lye tank, and the gas overflow outlet is communicated with the gas inlet at the bottom of the absorption tower body.
Preferably, the lye tank is provided with an air inlet pipe and a liquid pumping pipe, the air inlet pipe is arranged on the bottom surface of the lye tank and is immersed in the lye tank, one end of the liquid pumping pipe is immersed in the lye, the other end of the liquid pumping pipe is connected with two groups of spraying assemblies, and the two groups of spraying assemblies are respectively arranged on the upper parts of the first-stage absorption area and the second-stage absorption area.
Preferably, the air inlet pipe is immersed at the inner end of the alkali liquor and is provided with an air distribution assembly, the air distribution assembly comprises an air distribution pipe which is arranged in a winding mode, and micropores are uniformly distributed on the air distribution pipe.
Preferably, the spray assembly comprises a spray coil pipe, the spray coil pipe is coiled to the outer diameter to be matched with the inner diameter of the absorption tower body, and atomizing nozzles are uniformly distributed on the spray coil pipe.
Preferably, the first-stage absorption region and the second-stage absorption region are both provided with absorption fillers, the absorption fillers in the first-stage absorption region are lime particles, the absorption fillers in the second-stage absorption region are ceramic particles, and the spraying assembly arranged on the second-stage absorption region is also connected with a water pipe.
Preferably, be provided with the moisture absorption filler in the drying zone, moisture absorption filler upper portion is provided with the muffler, the muffler includes the sound absorption piece of making by sound absorbing material, be provided with on the sound absorption piece just to just the exhaust area that suits with the gas vent, the side that lies in the exhaust area on the sound absorption piece lower surface sets up to the arcwall face.
A process for generating hydrochloric acid sequentially comprises the steps of generating hydrogen chloride gas, dissolving the hydrogen chloride gas in water to obtain hydrogen chloride solution and recovering hydrogen chloride gas tail gas; a tail gas recovery system is adopted in the hydrogen chloride gas tail gas recovery, and the tail gas recovery system comprises the hydrochloric acid absorption tower.
The hydrochloric acid absorption tower provided by the technical scheme of the invention has the beneficial effects that: the multistage absorption region is utilized to realize the absorption of unabsorbed hydrogen chloride gas, and the absorption rate is high.
Drawings
Fig. 1 is a schematic structural diagram of a hydrochloric acid absorption tower according to the technical scheme of the invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Referring to fig. 1, the hydrochloric acid absorption tower according to the technical scheme of the present invention comprises an absorption tower body 1 and a lye tank 2, wherein the lye tank 2 is provided with a gas overflow port 21, and the gas overflow port 21 is communicated with the inside of the absorption tower body 1. The absorption tower body 1 is internally provided with a first-stage absorption area 5, a second-stage absorption area 6, a demisting area 8 and a drying area 9 from bottom to top in sequence, and the top of the absorption tower body 1 is provided with an exhaust port 12.
Hydrogen chloride gas molecules in tail gas firstly enter the lye tank 2 and are absorbed by lye in the lye tank 2, the lye generally adopts calcium hydroxide solution, partial hydrogen chloride gas can not be completely absorbed and overflows, the hydrogen chloride gas is absorbed by the primary absorption area 5 and the secondary absorption area 6 in sequence, chlorine salt generated after absorption enters the lye tank 2, and air molecules are finally discharged into air through the demisting area 8 and the drying area 9. In the technology, hydrogen chloride molecules are sequentially absorbed and washed for three times, so that the removal rate is high.
The lye tank 2 is arranged at the bottom of the absorption tower body 1, the gas overflow port 21 is arranged on the upper surface of the lye tank 2, and the gas overflow port 21 is communicated with the gas inlet at the bottom of the absorption tower body 1. The gas directly enters the absorption tower body 1 after overflowing, so that the problems of hydrogen chloride molecule overflow and leakage caused by the fact that the gas flow passes through multiple loops are avoided.
The lye tank 2 is provided with an air inlet pipe 4 and a liquid pumping pipe 15, and the air inlet pipe 4 is arranged on the bottom surface of the lye tank 2 and is immersed in the lye tank 2. One end of the liquid pumping pipe 15 is immersed in the alkali liquor, the other end is connected with two groups of spraying components 7, and the two groups of spraying components 7 are respectively arranged at the upper parts of the first-stage absorption area 5 and the second-stage absorption area 6. Alkali liquor or water is sprayed in the spraying component 7 to realize the absorption of hydrogen chloride molecules.
The intake pipe 4 submergence is provided with the gas distribution subassembly in alkali lye inner, and the gas distribution subassembly is provided with the micropore including the gas distribution pipe 3 that coils the setting on the gas distribution pipe 3 equipartition for the slow even entering alkali lye of hydrogen chloride gas is absorbed by alkali lye, improves the absorption rate of alkali lye to hydrogen chloride gas.
The spraying component 7 comprises a spraying coil pipe, the outer diameter of the spraying coil pipe in a coiling mode is matched with the inner diameter of the absorption tower body, and atomizing nozzles are uniformly distributed on the spraying coil pipe. So that the spraying liquid is fully contacted with the hydrogen chloride and the absorption rate of the hydrogen chloride is improved.
The primary absorption area 5 and the secondary absorption area 6 are both provided with absorption fillers, and the absorption fillers in the primary absorption area are quicklime particles. The absorption filler of the secondary absorption area is ceramic particles, and the spraying component arranged on the secondary absorption area is also connected with a water pipe. The absorption to the hydrogen chloride molecule is further strengthened to quick lime granule, and the micropore is convenient for hydrogen chloride gas to pass through on the ceramic particle, and on water smoke passed through the ceramic particle simultaneously, with the contact of hydrogen chloride gas, the realization was to the absorption of hydrogen chloride gas, and the setting of ceramic particle, at the last step of hydrogen chloride gas absorption, the effectual carrying of avoiding alkali lye.
Be provided with the moisture absorption filler in the drying zone 9, moisture absorption filler upper portion is provided with the muffler, and the muffler includes the sound piece 10 of inhaling that makes by sound absorbing material, is provided with on inhaling the sound piece 10 just to just the exhaust area 11 that just suits with gas vent 12, inhales the side that lies in the exhaust area on the sound piece 10 lower surface and sets up to arcwall face 13, noise when reducing the air escape, improves operational environment.
A process for generating hydrochloric acid sequentially comprises the steps of generating hydrogen chloride gas, dissolving the hydrogen chloride gas in water to obtain hydrogen chloride solution and recovering hydrogen chloride gas tail gas; a tail gas recovery system is adopted in the recovery of the hydrogen chloride gas tail gas, and the tail gas recovery system comprises the hydrochloric acid absorption tower.
It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art and related arts based on the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.
Claims (8)
1. The hydrochloric acid absorption tower is characterized by comprising an absorption tower body and a lye tank, wherein a gas overflow port is formed in the lye tank, the gas overflow port is communicated with the inside of the absorption tower body, a first-stage absorption area, a second-stage absorption area, a demisting area and a drying area are sequentially arranged in the absorption tower body from bottom to top, and an exhaust port is formed in the top of the absorption tower body.
2. The hydrochloric acid absorption tower of claim 1, wherein the lye tank is disposed at the bottom of the absorption tower body, and a gas overflow port is disposed on the upper surface of the lye tank, said gas overflow port being in communication with the gas inlet at the bottom of the absorption tower body.
3. The hydrochloric acid absorption tower of claim 1, wherein the lye tank is provided with an air inlet pipe and a liquid extraction pipe, the air inlet pipe is arranged on the bottom of the lye tank and is immersed in the lye tank, one end of the liquid extraction pipe is immersed in the lye, the other end of the liquid extraction pipe is connected with two groups of spraying assemblies, and the two groups of spraying assemblies are respectively arranged on the upper parts of the primary absorption area and the secondary absorption area.
4. The hydrochloric acid absorption tower of claim 3, wherein the gas distribution assembly is arranged at the inner end of the gas inlet pipe immersed in the alkali liquor, the gas distribution assembly comprises a gas distribution pipe which is coiled, and micropores are uniformly distributed on the gas distribution pipe.
5. The hydrochloric acid absorption tower of claim 3, wherein the spray assembly comprises a spray coil, the outer diameter of the spray coil is matched with the inner diameter of the absorption tower body, and the spray coil is uniformly provided with atomizing nozzles.
6. The hydrochloric acid absorption tower of claim 1, wherein absorption fillers are arranged in the primary absorption region and the secondary absorption region, the absorption fillers in the primary absorption region are lime particles, the absorption fillers in the secondary absorption region are ceramic particles, and the spray assembly arranged on the secondary absorption region is further connected with a water pipe.
7. The hydrochloric acid absorption tower of claim 1, wherein the drying zone is filled with moisture absorption filler, the upper part of the moisture absorption filler is filled with a silencer, the silencer comprises a sound absorption block made of sound absorption material, the sound absorption block is provided with an exhaust zone which is opposite to the exhaust port and is adaptive to the exhaust port in size, and the side surface of the lower surface of the sound absorption block, which is positioned in the exhaust zone, is provided with an arc surface.
8. A process for generating hydrochloric acid is characterized by sequentially generating hydrogen chloride gas, dissolving the hydrogen chloride gas in water to obtain hydrogen chloride solution and recovering hydrogen chloride gas tail gas;
the hydrogen chloride gas tail gas recovery adopts a tail gas recovery system, and the tail gas recovery system comprises the hydrochloric acid absorption tower as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011123526.0A CN112316688A (en) | 2020-10-20 | 2020-10-20 | Hydrochloric acid absorption tower and process for producing hydrochloric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011123526.0A CN112316688A (en) | 2020-10-20 | 2020-10-20 | Hydrochloric acid absorption tower and process for producing hydrochloric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112316688A true CN112316688A (en) | 2021-02-05 |
Family
ID=74310528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011123526.0A Pending CN112316688A (en) | 2020-10-20 | 2020-10-20 | Hydrochloric acid absorption tower and process for producing hydrochloric acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112316688A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113213426A (en) * | 2021-03-03 | 2021-08-06 | 眉山友禾科技有限公司 | Preparation process of high-concentration hydrochloric acid |
| CN114682081A (en) * | 2022-04-12 | 2022-07-01 | 江苏索普新材料科技有限公司 | Dichlorobenzene VOCs tail gas treatment device and use method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100998884A (en) * | 2006-12-01 | 2007-07-18 | 华中科技大学 | Solid liquid two-phase odour purifier |
| CN102198361A (en) * | 2011-05-19 | 2011-09-28 | 蒋超 | Hydrogen chloride tail gas recovery equipment |
| CN103542473A (en) * | 2013-10-21 | 2014-01-29 | 王全龄 | Haze pollutant removing device |
| CN207203841U (en) * | 2017-09-12 | 2018-04-10 | 苏州迈踏环保设备有限公司 | Soda acid exhaust gas washing tower |
| DE102017108846A1 (en) * | 2017-04-25 | 2018-10-25 | Thyssenkrupp Ag | Device and method for waste gas scrubbing and urea plant with a waste gas scrubbing |
-
2020
- 2020-10-20 CN CN202011123526.0A patent/CN112316688A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100998884A (en) * | 2006-12-01 | 2007-07-18 | 华中科技大学 | Solid liquid two-phase odour purifier |
| CN102198361A (en) * | 2011-05-19 | 2011-09-28 | 蒋超 | Hydrogen chloride tail gas recovery equipment |
| CN103542473A (en) * | 2013-10-21 | 2014-01-29 | 王全龄 | Haze pollutant removing device |
| DE102017108846A1 (en) * | 2017-04-25 | 2018-10-25 | Thyssenkrupp Ag | Device and method for waste gas scrubbing and urea plant with a waste gas scrubbing |
| CN207203841U (en) * | 2017-09-12 | 2018-04-10 | 苏州迈踏环保设备有限公司 | Soda acid exhaust gas washing tower |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113213426A (en) * | 2021-03-03 | 2021-08-06 | 眉山友禾科技有限公司 | Preparation process of high-concentration hydrochloric acid |
| CN114682081A (en) * | 2022-04-12 | 2022-07-01 | 江苏索普新材料科技有限公司 | Dichlorobenzene VOCs tail gas treatment device and use method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112316688A (en) | Hydrochloric acid absorption tower and process for producing hydrochloric acid | |
| CN105363500B (en) | The closed cleaning device and method and regenerative system and method for a kind of inactivation SCR denitration catalyst | |
| CN102974200B (en) | Oxynitride waste gas treatment device and oxynitride waste gas treatment method | |
| CN114225671B (en) | Nitrogen oxide tail gas treatment process | |
| CN215819597U (en) | Exhaust deodorizing device for livestock and poultry house | |
| CN206631419U (en) | A kind of desulfuring and denitrifying apparatus based on low temperature plasma and catalyzing cooperation | |
| CN205287980U (en) | Atmosphere treatment facility | |
| CN207307542U (en) | A kind of tail gas absorber of prodan production technology | |
| CN207928979U (en) | The processing system of the nitric acid exhaust gas generated in oxidation process | |
| CN210145798U (en) | Purifier for treating various acid-containing waste gases | |
| CN207266825U (en) | A kind of acid gas absorption device | |
| CN207694600U (en) | A kind of combined type UV photodissociation towers | |
| CN108579371A (en) | A kind of emission-control equipment that U-tube formula is recyclable | |
| CN211725254U (en) | Aluminum veneer spraying paint waste gas treatment system | |
| CN106345258A (en) | Acid mist treatment method | |
| CN210845812U (en) | Acid mist absorption device | |
| CN107213765A (en) | A kind of family expenses remove the purification assembly of formaldehyde plant | |
| CN210613311U (en) | Waste gas treatment equipment with spraying, photolysis and activated carbon adsorption functions | |
| CN208757262U (en) | A kind of ammonia recycling device | |
| CN205435483U (en) | Energy -conserving processing apparatus of calcium carbonate regeneration cycle | |
| CN109795993A (en) | A kind of dilute nitric acid production equipment and its technique | |
| CN208612148U (en) | A kind of waste gas treatment equipment automatic control system | |
| CN205627592U (en) | Remove ammonia device with tail gas among resource cyclic utilization | |
| CN212188497U (en) | Forming machine exhaust gas purification system | |
| CN204522725U (en) | Waste gas purification spray column |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210205 |
|
| RJ01 | Rejection of invention patent application after publication |