CN210699439U - SO removal in reagent sulfuric acid production2In a device - Google Patents
SO removal in reagent sulfuric acid production2In a device Download PDFInfo
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- CN210699439U CN210699439U CN201921643635.8U CN201921643635U CN210699439U CN 210699439 U CN210699439 U CN 210699439U CN 201921643635 U CN201921643635 U CN 201921643635U CN 210699439 U CN210699439 U CN 210699439U
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- sulfuric acid
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Abstract
The utility model discloses a reagent sulfuric acid production desorption SO2The device comprises a reagent sulfuric acid desorption circulating pump, a circulating kettle and SO2A desorption tower, the circulating kettle, a reagent sulfuric acid desorption circulating pump and SO2The desorption towers are connected by acid-resistant pipelines in sequence to form a circulation loop; the upper part of the circulating kettle is provided with a pipeline opening for adding SO2The reagent sulfuric acid of (4); the SO2The top of the desorption tower is provided with an air chamberThe outlet of the air chamber is connected with a negative pressure exhaust pipe of the sulfuric acid production system; the SO2The bottom of the desorption tower is provided with an air inlet pipe for sucking air. The utility model adopts the packed tower of the gas-liquid exchange technology commonly used in chemical industry for desorption, and realizes SO in reagent sulfuric acid2The whole removing process is energy-saving and environment-friendly, and the efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of industrial production reagent sulphuric acid, concretely relates to reagent sulphuric acid production desorption SO2The apparatus of (1).
Background
The reagent sulfuric acid is a reagent frequently used in chemical industrial production and tests, and has a wide application range. The requirement of the reagent sulfuric acid on impurities is very strict, but in the production process, SO is necessarily brought into the gas absorption due to process reasons2Harmful impurities, which must be removed. Removal of SO2Harmful impurities can be removed by air replacement, and air blowing by an air compressor is generally adopted in the prior art to remove the impurities by bubbling in a container.
The following problems mainly exist in the prior art:
(1) the air compressor consumes energy, which brings extra energy consumption and cost;
(2) the air compressor has high noise, so that environmental pollution and discomfort of personnel are caused;
(3) the air compressor needs equipment purchase and maintenance, so that the use cost is increased;
(4) bubbling exhausted SO2And the fine acid foam is discharged, which can pollute the air and the surrounding environment. If neutralization is carried out, secondary pollution and cost as well as operation trouble exist;
(5) the production efficiency is not high, and the removal effect is not ideal.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems and the defects in the prior art, the invention is practicalThe SO is removed by using a novel reagent sulfuric acid production2The device adopts a packed tower of a common chemical gas-liquid exchange technology for desorption, and realizes SO in the reagent sulfuric acid2The whole removing process is energy-saving and environment-friendly, and the efficiency is improved.
Therefore, the utility model adopts the following technical scheme:
SO removal in reagent sulfuric acid production2The device comprises a reagent sulfuric acid desorption circulating pump, a circulating kettle and SO2A desorption tower, the circulating kettle, a reagent sulfuric acid desorption circulating pump and SO2The desorption towers are connected by acid-resistant pipelines in sequence to form a circulation loop; the upper part of the circulating kettle is provided with a pipeline opening for adding SO2The reagent sulfuric acid of (4); the SO2The top of the desorption tower is provided with a gas chamber outlet which is connected with a negative pressure exhaust pipe of the sulfuric acid production system; the SO2The bottom of the desorption tower is provided with an air inlet pipe for sucking air.
Preferably, the air inlet of the air inlet pipe is provided with an air filter felt for filtering sucked air.
Preferably, the air filter felt is made of fiber felt, and the nozzle of the fiber felt is rain-proof or downward.
Preferably, the SO2The desorption tower is in a packed tower structure.
Preferably, the circulating kettle, the reagent sulfuric acid desorption circulating pump and the SO2Valves are arranged on the acid-resistant pipelines in the circulation loop formed by the desorption tower and are used for opening and closing the circulation loop.
Preferably, the SO2Except the tower body connecting pipe, the air pipes at the inlet and the outlet of the desorption tower are common plastic pipes, and the rest of the inlet air extension pipes and the negative pressure exhaust pipes are common plastic pipes.
Preferably, the common plastic pipe comprises a PVC pipe, a PP pipe, excluding a fluoroplastic pipe.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the air compressor is not needed, the use cost is reduced, no noise exists, no air pollution exists, and no environmental pollution is caused.
(2) Three favorable conditions which just exist in a sulfuric acid production system are utilized, and 1) negative pressure is adopted; 2) air needs to be replenished; 3) requires SO2(ii) a The packed tower that adopts the gas-liquid exchange technique commonly used in chemical industry is used for desorption, and the desorption effect is fine, has solved a great deal of problem of traditional prior art like this.
(3) Energy-saving, environment-friendly, noiseless, pollution-free, high-efficiency and SO-recycling2And the removal process is clean and harmless.
Drawings
FIG. 1 shows that the utility model provides a reagent for removing SO in the production of sulfuric acid2The structure of the device is schematically shown.
Description of reference numerals: 1. a reagent sulfuric acid desorption circulating pump; 2. circulating the kettle; 3. SO (SO)2A desorption tower; 4. an air inlet pipe; 5. an air filter felt.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, which are only used for explaining the present invention, but not for limiting the present invention.
As shown in figure 1, the utility model discloses a reagent for removing SO in the production of sulfuric acid2The device comprises a reagent sulfuric acid desorption circulating pump 1, a circulating kettle 2 and SO2A desorption tower 3, the circulating kettle 2, a reagent sulfuric acid desorption circulating pump 1 and SO2The desorption towers 3 are connected by acid-resistant pipelines in sequence to form a circulation loop; the upper part of the circulating kettle 2 is provided with a pipeline opening for adding SO2The reagent sulfuric acid of (4); the SO2The top of the desorption tower 3 is provided with an air chamber outlet which is connected with a negative pressure exhaust pipe of the sulfuric acid production system; the SO2The bottom of the desorption tower 3 is provided with an air inlet pipe 4 for sucking air.
And an air filter felt 5 is arranged at an air inlet of the air inlet pipe 4 and used for filtering sucked air.
The air filter felt 5 is made of fiber felt, and the pipe orifice of the fiber felt is rainproof or faces downwards.
The SO2Suction and extraction deviceThe tower 3 is a packed tower structure.
The circulating kettle 2 and the reagent sulfuric acid desorption circulating pump 1 and SO2Valves are arranged on the acid-resistant pipelines in the circulation loop formed by the desorption tower 3 and are used for opening and closing the circulation loop.
The SO2Except the tower body connecting pipe, the air pipes at the inlet and the outlet of the desorption tower 3, and the other inlet air extension pipes and the negative pressure exhaust pipe are common plastic pipes.
The common plastic pipe comprises a PVC pipe and a PP pipe, and does not comprise a fluoroplastic pipe.
Removing SO in the production of the reagent sulfuric acid2The device comprises the following process flows:
a batch of SO-containing liquid is poured into the circulating kettle 22The reagent sulfuric acid of (4); opening a valve on the circulation loop, starting the reagent sulfuric acid desorption circulating pump 1, wherein the circulating kettle 2 contains SO2Is fed to SO2The gravity naturally descends to flow through the SO at the upper part of the desorption tower 32Packing in the desorption column 3, with SO2The upward countercurrent air coming from the air inlet pipe 4 at the bottom of the desorption tower 3 is contacted with the gas in a large area to remove SO dissolved in the reagent sulfuric acid2A gas; SO (SO)2Escape from reagent sulfuric acid into the incoming air and escape from SO2An outlet at the upper part of the desorption tower 3 is discharged and pumped into a sulfuric acid production system for recycling; when SO is in reagent sulfuric acid2When the harmful impurities are reduced to below the standard content, the qualified product is produced, and then the next batch of SO-containing product is poured into the circulating kettle 22The reagent sulfuric acid is continuously removed.
In particular, SO2The air coming in from the desorption tower 3 is automatically sucked completely by the negative pressure of the sulfuric acid production system.
Specifically, the circulating kettle 2 contains SO2The reagent sulfuric acid is continuously pumped to the SO by the reagent sulfuric acid desorption circulating pump 12And circulating the desorption tower 3 until the desorption is qualified, and outputting.
Examples
SO removal in reagent sulfuric acid production2The device comprises a reagent sulfuric acid desorption circulating pump 1, a circulating kettle 2 and SO2And the desorption towers 3 are connected into a loop by adopting an acid-resistant pipeline. SO2The bottom of the desorption tower 3 is provided with an air inlet pipe 4 for sucking air. An air filter felt 5 is arranged at an air inlet of the air inlet pipe 4 to filter air. The SO2The desorption tower 3 is of a packed tower structure.
Starting the reagent sulfuric acid desorption circulating pump 1, wherein the circulating kettle 2 contains SO2Is fed to SO2Gravity naturally descends to flow through the SO at the upper part of the desorption tower 32Packing in the desorption column 3, with SO2The upward countercurrent air coming from the air inlet pipe 4 at the bottom of the desorption tower 3 is contacted with the gas in a large area to remove SO dissolved in the reagent sulfuric acid2And (4) introducing the gas and the removed gas into a sulfuric acid production system. The SO2The air coming from the desorption tower 3 is automatically sucked completely by the negative pressure of the sulfuric acid production system, and the sulfuric acid production system needs to supplement air by negative pressure in the process, namely air and SO2。
Removing SO dissolved in reagent sulfuric acid production2The method is carried out by automatically sucking air by using a negative pressure exhaust tube of a sulfuric acid production system as power2Except the tower body short-circuit pipe, other inlet air extension pipes and negative pressure exhaust pipes of the desorption tower 3 are common plastic pipes, such as PVC pipes, PP pipes and other cheap plastic pipes, and fluoroplastic pipes are not used.
The reagent sulfuric acid in the circulating kettle 2 is continuously pumped to SO by the reagent sulfuric acid desorption circulating pump 12And (4) desorption circulation of the desorption tower 3 until desorption is qualified, and then output.
Here, the air filter felt 5 is a fiber felt, SO2The air sucked by the desorption tower 3 is filtered by fiber felts to remove impurities such as dust, winged insects and the like, and the pipe openings of the fiber felts are rain-proof or face downwards.
The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle scope of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. SO removal in reagent sulfuric acid production2Comprises a reagent sulfuric acid desorption circulating pump (1)Circulating kettle (2) and SO2The desorption tower (3) is characterized in that: the circulating kettle (2), the reagent sulfuric acid desorption circulating pump (1) and SO2The desorption towers (3) are sequentially connected by acid-resistant pipelines to form a circulation loop; the upper part of the circulating kettle (2) is provided with a pipeline opening for adding SO2The reagent sulfuric acid of (4); the SO2The top of the desorption tower (3) is provided with a gas chamber outlet which is connected with a negative pressure exhaust pipe of a sulfuric acid production system; the SO2The bottom of the desorption tower (3) is provided with an air inlet pipe (4) for sucking air.
2. The process for removing SO in the production of reagent sulfuric acid according to claim 12The device of (2), characterized in that: and an air inlet of the air inlet pipe (4) is provided with an air filter felt (5) for filtering sucked air.
3. The process for removing SO in the production of reagent sulfuric acid according to claim 22The device of (2), characterized in that: the air filter felt (5) is made of fiber felt, and the pipe orifice of the fiber felt is rainproof or faces downwards.
4. The process for removing SO in the production of reagent sulfuric acid according to claim 12The device of (2), characterized in that: the SO2The desorption tower (3) is of a packed tower structure.
5. The process for removing SO in the production of reagent sulfuric acid according to claim 12The device of (2), characterized in that: the circulating kettle (2), the reagent sulfuric acid desorption circulating pump (1) and SO2Valves are arranged on acid-resistant pipelines in the circulation loop formed by the desorption tower (3) and are used for opening and closing the circulation loop.
6. A reagent sulfuric acid production SO removal according to any one of claims 1 to 52The device of (2), characterized in that: the SO2Except the tower body connecting pipe, the air pipes at the inlet and the outlet of the desorption tower (3) are common plastic pipes, and the rest of inlet air extension pipes and the negative pressure air exhaust pipe are common plastic pipes.
7. The process for removing SO in the production of reagent sulfuric acid according to claim 62The device of (2), characterized in that: the common plastic pipe comprises a PVC pipe and a PP pipe, and does not comprise a fluoroplastic pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921643635.8U CN210699439U (en) | 2019-09-29 | 2019-09-29 | SO removal in reagent sulfuric acid production2In a device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921643635.8U CN210699439U (en) | 2019-09-29 | 2019-09-29 | SO removal in reagent sulfuric acid production2In a device |
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| CN210699439U true CN210699439U (en) | 2020-06-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110523220A (en) * | 2019-09-29 | 2019-12-03 | 武汉青江化工黄冈有限公司 | A kind of reagent of sulfuric acid production removing SO2Device and method |
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2019
- 2019-09-29 CN CN201921643635.8U patent/CN210699439U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110523220A (en) * | 2019-09-29 | 2019-12-03 | 武汉青江化工黄冈有限公司 | A kind of reagent of sulfuric acid production removing SO2Device and method |
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