CN209226584U - Acid-scrubbing cleaning-absorption process reagent of sulfuric acid manufacture production system - Google Patents
Acid-scrubbing cleaning-absorption process reagent of sulfuric acid manufacture production system Download PDFInfo
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- CN209226584U CN209226584U CN201821918402.XU CN201821918402U CN209226584U CN 209226584 U CN209226584 U CN 209226584U CN 201821918402 U CN201821918402 U CN 201821918402U CN 209226584 U CN209226584 U CN 209226584U
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Abstract
The utility model relates to sulfuric acid production system technical fields, master device, oleum purifying column, reagent of sulfuric acid absorption tower, fuming acid circulating slot, reagent of sulfuric acid circulating slot, degassing tower are produced more particularly to acid-scrubbing cleaning-absorption process reagent of sulfuric acid manufacture production system, including furnace gas source, industrial sulphuric acid；It includes a suction tower, conversion section and drying tower that industrial sulphuric acid, which produces master device,.Due to carrying out washing, purifying to flue gas using oleum, purified flue gas enters back into reagent of sulfuric acid absorption tower and is absorbed, so that the purity is high of product, and have the advantages that production cost is low.Since oleum purifying column is arranged, and oleum purifying column uses the smoke recycle acid of high concentration to carry out cyclic absorption, can reduce the absorptivity of oleum purifying column, and guarantees the furnace gas SO into reagent of sulfuric acid absorption tower3Concentration, and then the output of stable reagent sulfuric acid, and without the consumption of the thermal energy such as steam, thus have production energy consumption low, the low advantage of production cost.
Description
Technical field
The utility model relates to sulfuric acid production system technical fields, more particularly to acid-scrubbing cleaning-absorption process reagent of sulfuric acid
The production system of manufacture.
Background technique
The quality standard of internal reagent sulfuric acid executes GB/T625-2007 " chemical reagent sulfuric acid " at present, production method master
There are the way of distillation and two kinds of absorption process.Wherein, acid-scrubbing cleaning-absorption process reagent of sulfuric acid manufacture way of distillation generally uses w (H2SO4)
98% industrial sulphuric acid is raw material, heats distilation in quartz glass device after pretreatment, after being a kind of industrial sulphuric acid
Handle physics purification process.Heat source used in the way of distillation is mainly electric energy, is also had using coal-fired and coal gas.The way of distillation most very much not
Foot is energy consumption height, counts according to the production practices of many years, produces l tons of 400~600kWh of reagent of sulfuric acid power consumption.In addition, there are also other
Some factors also restrict the reduction of production cost.For example, single device processing capacity is small, general production capacity about 200kg/d, to
More productions in parallel can only be leaned on by improving yield, thus be unfavorable for the operation and production safety management of equipment；Quartz glass wall holds
Easy fouling need to use hydrofluoric acid periodic cleaning, be bound to cause equipment corrosion, the production cost increases.
In order to overcome the shortcomings of the way of distillation, reduce production cost, with the progress of material and facility manufacturing technology, absorption process
Reagent of sulfuric acid production technology is come into being.Absorption process technique is with pure SO3Gas is raw material, with w (H2SO4) 98% examination
Desalted water is added as cyclic absorption agent, and into system to balance acid concentration in agent sulfuric acid.Absorption process reagent of sulfuric acid produces
Using the intake for controlling impurity in former, auxiliary material and production process as main means, by accurate technology controlling and process, keep product pure
Degree reaches the target of setting and directly produces reagent of sulfuric acid, is SO3With H2The combination reaction of O.
The absorption process reagent of sulfuric acid technological process of production can be divided into SO3Produce and purify absorb two parts.
Wherein, SO3Produce identical as the contact method industrial sulphuric acid technological process of production, can also directly purchase liquid SO3, but
Cost is too high, can not form large-scale production.
SO3Purification absorption can be divided into two classes: one kind is by dust removal filter to SO3It is directly supplied after gas filtration purification
Reagent acid absorption column is absorbed and (calls filtration, purification absorption process in the following text), and desalted water is added to balance acid concentration into system；It crosses
Filter purification absorption process advantage be it is at low cost, the reagent of sulfuric acid product cost of production and the production cost of industrial sulphuric acid are held substantially
It is flat, but since filtered furnace gas is still with a certain amount of impurity, the reagent of sulfuric acid of output generally can only achieve GB/T625-
The 2007 pure specifications of chemistry.Another kind of is to produce oleum by first absorbing, and reheats fuming acid and pure SO is precipitated3, for examination
Agent acid absorption column is absorbed and (calls fuming acid evaporation absorption process in the following text), and desalted water is added to balance acid concentration into system；Hair
The reagent of sulfuric acid purity of niacin evaporation absorption process production can achieve GB/T625-2007 and analyze pure specification, but fuming acid steams
SO3Process energy consumption it is still higher, cost advantage is unobvious.
Summary of the invention
The purpose of this utility model is that providing acid-scrubbing cleaning-absorption process reagent aiming at the deficiencies in the prior art
The production system of sulfuric acid manufacture, the acid-scrubbing cleaning-absorption process reagent of sulfuric acid manufacture production system have production energy consumption low, production
Advantage at low cost.
In order to achieve the above objectives, the utility model is achieved through the following technical solutions.
Acid-scrubbing cleaning-absorption process reagent of sulfuric acid manufacture production system is provided, including furnace gas source, industrial sulphuric acid produce main dress
It sets, oleum purifying column, reagent of sulfuric acid absorption tower, fuming acid circulating slot, reagent of sulfuric acid circulating slot, degassing tower；
The industrial sulphuric acid production master device includes a suction tower, conversion section and drying tower；
First output end in the furnace gas source is connect with the input terminal of the suction tower, the second output terminal in the furnace gas source
It is connect with the bottom of the oleum purifying column, the first output end and the oleum of the fuming acid circulating slot purify
The top of tower connects, and the bottom of the oleum purifying column is connect with the input terminal of fuming acid circulating slot, the oleum
The top of purifying column is connect with the bottom on the reagent of sulfuric acid absorption tower, the top on the reagent of sulfuric acid absorption tower and the reagent
First output end of sulfuric acid circulating slot connects, the input of the bottom on the reagent of sulfuric acid absorption tower and the reagent of sulfuric acid circulating slot
The top of end connection, the reagent of sulfuric acid absorption tower is connect with the conversion section of industrial sulphuric acid production master device, the examination
The second output terminal of agent sulfuric acid circulating slot is connect with the top of the degassing tower, the drying tower of the industrial sulphuric acid production master device
Import connect with the lower part of the degassing tower and to the lower part input air of the degassing tower, the top of the degassing tower and institute
State the conversion section connection of industrial sulphuric acid production master device.
The industrial sulphuric acid production master device further includes dry absorption section, the output end of the dry absorption section and the fuming acid
Circulating slot input terminal connection and to the fuming acid circulating slot input the concentrated sulfuric acid so that the concentrated sulfuric acid with come from the oleum
The smoke recycle acid of the bottom of purifying column mixes, to adjust the concentration of smoke recycle acid and keep stable.
The second output terminal of the fuming acid circulating slot is connect with the input terminal of the dry absorption section, so that redundance
Smoke recycle acid be sent into the dry absorption section of industrial sulphuric acid production master device to maintain the liquid level equilibrium of fuming acid circulating slot.
The tower outlet section on the top on the reagent of sulfuric acid absorption tower is provided with fiber mist eliminator.
The acid-scrubbing cleaning-absorption process reagent of sulfuric acid manufacture production system further includes desalted water workshop section.
The desalted water workshop section connect with the input terminal of the reagent of sulfuric acid circulating slot and to the reagent of sulfuric acid circulating slot
Input desalted water.
The acid-scrubbing cleaning-absorption process reagent of sulfuric acid manufacture production system further includes storage cavern.
The lower part of the degassing tower connect with the storage cavern and inputs reagent of sulfuric acid to the storage cavern.
The utility model has the beneficial effects that
Acid-scrubbing cleaning provided by the utility model-absorption process reagent of sulfuric acid manufacture production system, including furnace gas source, industry
Gas washing in SA production master device, oleum purifying column, reagent of sulfuric acid absorption tower, fuming acid circulating slot, reagent of sulfuric acid circulating slot, degassing
Tower；It includes a suction tower, conversion section and drying tower that industrial sulphuric acid, which produces master device,；First output end in furnace gas source and one inhales tower
Input terminal connection, the second output terminal in furnace gas source are connect with the bottom of oleum purifying column, and the first of fuming acid circulating slot is defeated
Outlet is connect with the top of oleum purifying column, and the bottom of oleum purifying column and the input terminal of fuming acid circulating slot connect
It connects, the top of oleum purifying column is connect with the bottom on reagent of sulfuric acid absorption tower, the top on reagent of sulfuric acid absorption tower and reagent
First output end of sulfuric acid circulating slot connects, and the bottom on reagent of sulfuric acid absorption tower is connect with the input terminal of reagent of sulfuric acid circulating slot,
The top on reagent of sulfuric acid absorption tower is connect with the conversion section of industrial sulphuric acid production master device, and the second of reagent of sulfuric acid circulating slot is defeated
The top of outlet and degassing tower connection, industrial sulphuric acid produce master device drying tower import and degassing tower lower part connection and to
The top of the lower part input air of degassing tower, degassing tower is connect with the conversion section of industrial sulphuric acid production master device.Due to flue gas
In can reduce the quality of reagent acid containing particles such as dust, therefore the utility model flue gas wash using oleum it is net
Change, purified flue gas enters back into reagent of sulfuric acid absorption tower and absorbed, and then enables to the purity is high of product, and has life
Produce advantage at low cost.In addition, since oleum purifying column is arranged, and oleum purifying column uses the smoke of high concentration
Recycle acid can reduce the absorptivity of oleum purifying column to carry out cyclic absorption, and guarantee that entering reagent of sulfuric acid inhales
Receive the furnace gas SO of tower3Concentration, and then the output of stable reagent sulfuric acid, and without the consumption of the thermal energy such as steam, thus there is life
Low energy consumption for production, the low advantage of production cost.In addition, since degassing tower being arranged before reagent of sulfuric acid product output, and using industry
The air of the drying tower outlet of gas washing in SA production master device carries out remaining SO in removing reagent of sulfuric acid2, do not need in addition to increase dynamic
The flue gas of power consumption, degassing tower outlet enters system, the not pollution of environment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of acid-scrubbing cleaning-absorption process reagent of sulfuric acid manufacture production system of the utility model.
Appended drawing reference:
Furnace gas source 1；
Oleum purifying column 2；
Reagent of sulfuric acid absorption tower 3；
Fuming acid circulating slot 4；
Reagent of sulfuric acid circulating slot 5；
Degassing tower 6；
One inhales tower 7；
Conversion section 8；
Drying tower 9；
Dry absorption section 10；
Desalted water workshop section 11；
Storage cavern 12.
Specific embodiment
The technical issues of in order to keep the utility model solved, technical solution and beneficial effect are more clearly understood, below
In conjunction with the embodiments and attached drawing, the present invention will be further described in detail.It should be appreciated that specific implementation described herein
Example is only used to explain the utility model, is not used to limit the utility model.
The acid-scrubbing cleaning of the present embodiment-absorption process reagent of sulfuric acid manufacture production system, as shown in Figure 1, including furnace gas source
1, industrial sulphuric acid production master device, oleum purifying column 2, reagent of sulfuric acid absorption tower 3, fuming acid circulating slot 4, reagent of sulfuric acid follow
Annular groove 5, degassing tower 6；Wherein, industrial sulphuric acid production master device includes a suction tower 7, conversion section 8 and drying tower 9；Wherein, furnace gas
First output end in source 1 is connect with the input terminal of a suction tower 7, the second output terminal in furnace gas source 1 and the bottom of oleum purifying column 2
Portion's connection, the first output end of institute's fuming acid circulating slot 4 are connect with the top of oleum purifying column 2, oleum purifying column 2
Bottom connect with the input terminal of fuming acid circulating slot 4, the bottom on the top of oleum purifying column 2 and reagent of sulfuric acid absorption tower 3
Portion's connection, the top on reagent of sulfuric acid absorption tower 3 are connect with the first output end of reagent of sulfuric acid circulating slot 5, reagent of sulfuric acid absorption tower 3
Bottom connect with the input terminal of reagent of sulfuric acid circulating slot 5, the top on reagent of sulfuric acid absorption tower 3 and industrial sulphuric acid produce master device
Conversion section 8 connect, the second output terminal of reagent of sulfuric acid circulating slot 5 connect with the top of degassing tower 6, and industrial sulphuric acid, which produces, to be led
The import of the drying tower 9 of device connect with the lower part of degassing tower 6 and to the lower part input air of degassing tower 6, the top of degassing tower 6
It is connect with the conversion section 8 of industrial sulphuric acid production master device.In the actual production process, due to containing dust etc. in flue gas
Grain can reduce the quality of reagent acid, therefore the utility model carries out washing, purifying, purified cigarette to flue gas using oleum
Gas enters back into reagent of sulfuric acid absorption tower 3 and is absorbed, and then enables to the purity is high of product, and with low excellent of production cost
Point.In addition, due to be arranged oleum purifying column 2, and oleum purifying column 2 use the smoke recycle acid of high concentration with into
Row cyclic absorption, and then can reduce the absorptivity of oleum purifying column 2, and guarantee the furnace into reagent of sulfuric acid absorption tower 3
Gas SO3Concentration, and then the output of stable reagent sulfuric acid, and without the consumption of the thermal energy such as steam, thus have production energy consumption low,
The low advantage of production cost.In addition, being produced since degassing tower 6 being arranged before reagent of sulfuric acid product output, and using industrial sulphuric acid
The air that the drying tower 9 of master device exports carries out remaining SO in removing reagent of sulfuric acid2, it does not need in addition to increase power consumption,
The flue gas that degassing tower 6 exports enters system, the not pollution of environment.
In the present embodiment, it further includes dry absorption section 10, the output end and hair of dry absorption section 10 that industrial sulphuric acid, which produces master device,
4 input terminal of niacin circulating slot connection and to fuming acid circulating slot 4 input the concentrated sulfuric acid so that the concentrated sulfuric acid with come from oleum it is net
Change the smoke recycle acid mixing of the bottom of tower 2, to adjust the concentration of smoke recycle acid and keep stable.
In the present embodiment, the second output terminal of fuming acid circulating slot 4 is connect with the input terminal of dry absorption section 10, so that more
The smoke recycle acid of remaining part point is sent into the dry absorption section 10 of industrial sulphuric acid production master device to maintain the liquid level of fuming acid circulating slot
Balance.
In the present embodiment, the tower outlet section on the top on reagent of sulfuric acid absorption tower 3 is provided with fiber mist eliminator, and then can have
Effect reduces the sulphuric acid mist content in flue gas, and then protects upstream device.
In the present embodiment, the acid-scrubbing cleaning-absorption process reagent of sulfuric acid manufacture production system further includes desalted water workshop section 11.
Wherein, desalted water workshop section 11 connect with the input terminal of reagent of sulfuric acid circulating slot 5 and inputs desalted water to reagent of sulfuric acid circulating slot 5,
So that enter reagent of sulfuric acid circulating slot 5 from the circulation reagent acid that the bottom on reagent of sulfuric acid absorption tower 3 exports, and with come from desalted water
The desalted water of workshop section 11, which mixes, to be adjusted, and 98% acid concentration is maintained to stablize.
In the present embodiment, the acid-scrubbing cleaning-absorption process reagent of sulfuric acid manufacture production system further includes storage cavern 12.Wherein,
The lower part of degassing tower 6 connect with storage cavern 12 and inputs reagent of sulfuric acid to storage cavern 12.
In the actual production process, the production process of the acid-scrubbing cleaning-absorption process reagent of sulfuric acid manufacture production system
It is as follows:
Step 1: fuming acid cycle pickling purification process: by industrial sulphuric acid production master device conversion one transfer Lai SO3Furnace
Gas, and enter from 2 bottom of oleum purifying column, then SO3The smoke that furnace gas and 2 top of oleum purifying column enter recycles
Sour reverse contact smoke recycle acid is SO3The impurity of furnace gas washs, while absorbing part SO3, then from smoke sulfuric acid purification
The furnace gas of the top output of tower 2 is sent into the bottom on reagent of sulfuric acid absorption tower 3；The smoke recycle acid of oleum purifying column 2 enters
Fuming acid circulating slot 4, and mixed with the concentrated sulfuric acid of the dry absorption section 10 from industrial sulphuric acid production master device, it is followed with adjusting smoke
The concentration of naphthenic acid simultaneously keeps stable, and most smoke recycle acid is sent into oleum purifying column 2 and is continuously recycled, excess portion
The smoke recycle acid divided is sent into the dry absorption section 10 of industrial sulphuric acid production master device to maintain the liquid level equilibrium of fuming acid circulating slot；
Step 3: reagent of sulfuric acid cyclic absorption technique: the flue gas from oleum purifying column 2 enters reagent sulphur from bottom
Acid absorption column 3 is inversely contacted with the equally distributed recycle sulfuric acid in the top on reagent of sulfuric acid absorption tower 3, and recycle sulfuric acid absorbs furnace gas
SO3, it is raw that the furnace gas left from the top on reagent of sulfuric acid absorption tower 3 is sent into industrial sulphuric acid after the fiber mist eliminator of tower outlet section
The conversion section 8 for producing master device carries out secondary conversion；The circulation reagent acid exported from the bottom on reagent of sulfuric acid absorption tower 3 enters examination
Agent sulfuric acid circulating slot 5, and adjusting is mixed with the desalted water from desalted water workshop section 11, maintain 98% acid concentration to stablize, big portion
The top that the circulation reagent acid divided is sent into reagent of sulfuric acid absorption tower 3 continuously recycles, and redundance recycles reagent acid and is sent into degassing tower 6
To maintain the liquid level equilibrium of reagent acid circulating slot 5；
Step 4: reagent of sulfuric acid degasification technique: the reagent of sulfuric acid from reagent of sulfuric acid circulating slot 5 is sent into 6 top of degassing tower,
It is inversely contacted with the air of 9 import of drying tower from industrial sulphuric acid production master device of the lower part of degassing tower 6 entrance, with removing
Remaining SO in reagent of sulfuric acid2Reduzate, while the moisture in partial air is absorbed, stablize the concentration of reagent of sulfuric acid and enters storage
Library；The air come out by degassing tower 6 is sent into industrial sulphuric acid production master device after mixing with the flue gas that reagent of sulfuric acid absorption tower 3 exports
Conversion section 8 carry out secondary conversion.
Finally it should be noted that above embodiments are merely to illustrate the technical solution of the utility model rather than to this is practical
The limitation of novel protected range, although being explained in detail referring to preferred embodiment to the utility model, the common skill of this field
Art personnel should be appreciated that can be practical without departing from this with the technical solution of the present invention is modified or equivalently replaced
The spirit and scope of new technique scheme.
Claims (8)
1. acid-scrubbing cleaning-absorption process reagent of sulfuric acid manufacture production system, it is characterised in that: raw including furnace gas source, industrial sulphuric acid
Produce master device, oleum purifying column, reagent of sulfuric acid absorption tower, fuming acid circulating slot, reagent of sulfuric acid circulating slot, degassing tower；
The industrial sulphuric acid production master device includes a suction tower, conversion section and drying tower；
First output end in the furnace gas source is connect with the input terminal of the suction tower, the second output terminal in the furnace gas source and institute
State the bottom connection of oleum purifying column, the first output end of the fuming acid circulating slot and the oleum purifying column
Top connection, the bottom of the oleum purifying column are connect with the input terminal of fuming acid circulating slot, the oleum purification
The top of tower is connect with the bottom on the reagent of sulfuric acid absorption tower, the top on the reagent of sulfuric acid absorption tower and the reagent of sulfuric acid
First output end of circulating slot connects, and the input terminal of the bottom on the reagent of sulfuric acid absorption tower and the reagent of sulfuric acid circulating slot connects
It connects, the top on the reagent of sulfuric acid absorption tower is connect with the conversion section of industrial sulphuric acid production master device, the reagent sulphur
The second output terminal of sour circulating slot is connect with the top of the degassing tower, the drying tower of industrial sulphuric acid production master device into
Mouth connect with the lower part of the degassing tower and to the lower part input air of the degassing tower, the top of the degassing tower and the work
The conversion section of industry gas washing in SA production master device connects.
2. acid-scrubbing cleaning according to claim 1-absorption process reagent of sulfuric acid manufacture production system, it is characterised in that: institute
Stating industrial sulphuric acid production master device further includes dry absorption section, and the output end of the dry absorption section and the fuming acid circulating slot input
End connection simultaneously inputs the concentrated sulfuric acid to the fuming acid circulating slot so that the concentrated sulfuric acid and the bottom from the oleum purifying column
The smoke recycle acid in portion mixes, to adjust the concentration of smoke recycle acid and keep stable.
3. acid-scrubbing cleaning according to claim 2-absorption process reagent of sulfuric acid manufacture production system, it is characterised in that: institute
The second output terminal for stating fuming acid circulating slot is connect with the input terminal of the dry absorption section, so that the smoke of redundance recycles
Acid is sent into the dry absorption section of the industrial sulphuric acid production master device to maintain the liquid level equilibrium of fuming acid circulating slot.
4. acid-scrubbing cleaning according to claim 1-absorption process reagent of sulfuric acid manufacture production system, it is characterised in that: institute
The tower outlet section for stating the top on reagent of sulfuric acid absorption tower is provided with fiber mist eliminator.
5. acid-scrubbing cleaning according to claim 1-absorption process reagent of sulfuric acid manufacture production system, it is characterised in that: institute
Stating acid-scrubbing cleaning-absorption process reagent of sulfuric acid manufacture production system further includes desalted water workshop section.
6. acid-scrubbing cleaning according to claim 5-absorption process reagent of sulfuric acid manufacture production system, it is characterised in that: institute
Desalted water workshop section is stated to connect with the input terminal of the reagent of sulfuric acid circulating slot and input desalted water to the reagent of sulfuric acid circulating slot.
7. acid-scrubbing cleaning according to claim 1-absorption process reagent of sulfuric acid manufacture production system, it is characterised in that: institute
Stating acid-scrubbing cleaning-absorption process reagent of sulfuric acid manufacture production system further includes storage cavern.
8. acid-scrubbing cleaning according to claim 7-absorption process reagent of sulfuric acid manufacture production system, it is characterised in that: institute
The lower part for stating degassing tower connect with the storage cavern and inputs reagent of sulfuric acid to the storage cavern.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821918402.XU CN209226584U (en) | 2018-11-20 | 2018-11-20 | Acid-scrubbing cleaning-absorption process reagent of sulfuric acid manufacture production system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821918402.XU CN209226584U (en) | 2018-11-20 | 2018-11-20 | Acid-scrubbing cleaning-absorption process reagent of sulfuric acid manufacture production system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113800479A (en) * | 2021-10-29 | 2021-12-17 | 山东京博众诚清洁能源有限公司 | Process for preparing electronic-grade sulfuric acid by cyclic absorption method |
| CN115259104A (en) * | 2022-07-07 | 2022-11-01 | 江苏索普新材料科技有限公司 | Sulfuric acid production system and method for controlling acid concentration of blowing device |
| CN115724409A (en) * | 2022-11-28 | 2023-03-03 | 北方化学工业股份有限公司 | A recovery processing system for nitrocotton waste acid |
| CN115259104B (en) * | 2022-07-07 | 2024-04-26 | 江苏索普新材料科技有限公司 | Sulfuric acid production system and method for controlling acid concentration of purging device |
-
2018
- 2018-11-20 CN CN201821918402.XU patent/CN209226584U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113800479A (en) * | 2021-10-29 | 2021-12-17 | 山东京博众诚清洁能源有限公司 | Process for preparing electronic-grade sulfuric acid by cyclic absorption method |
| CN115259104A (en) * | 2022-07-07 | 2022-11-01 | 江苏索普新材料科技有限公司 | Sulfuric acid production system and method for controlling acid concentration of blowing device |
| CN115259104B (en) * | 2022-07-07 | 2024-04-26 | 江苏索普新材料科技有限公司 | Sulfuric acid production system and method for controlling acid concentration of purging device |
| CN115724409A (en) * | 2022-11-28 | 2023-03-03 | 北方化学工业股份有限公司 | A recovery processing system for nitrocotton waste acid |
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