CN207918433U - A kind of concentration systems of recycling dilute sulfuric acid - Google Patents
A kind of concentration systems of recycling dilute sulfuric acid Download PDFInfo
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- CN207918433U CN207918433U CN201820308919.0U CN201820308919U CN207918433U CN 207918433 U CN207918433 U CN 207918433U CN 201820308919 U CN201820308919 U CN 201820308919U CN 207918433 U CN207918433 U CN 207918433U
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- concentration
- preconcentrator
- level
- sulfuric acid
- heat exchanger
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model discloses a kind of concentration systems of recycling dilute sulfuric acid comprising diluted acid storage tank, preheating heat exchanger, level-one preconcentrator, two level preconcentrator, concentration kettle, condenser and the finished product acid storage tank being sequentially communicated；Diluted acid storage tank is connected to the cold fluid inlet of preheating heat exchanger, level-one preconcentrator is connected to the cold fluid outlet of preheating heat exchanger, concentration kettle is connected to the thermal fluid inlet of preheating heat exchanger, condenser is connected to the hot fluid outlet ports of preheating heat exchanger, concentration systems further include the absorption tower and process water delivery pipe for absorbing sulfur oxide, absorption tower is arranged on the top of concentration kettle and is connected to the acid solution feed inlet of concentration kettle, two level preconcentrator is connected to by absorption tower with concentration kettle, process water delivery pipe respectively with the cold fluid inlet of condenser, the cold fluid outlet of condenser is connected to；The utility model have many advantages, such as it is energy saving, promote thickening efficiency, easy to operate.
Description
Technical field
The utility model belongs to chemical production field, and in particular to a kind of concentration systems of recycling dilute sulfuric acid.
Background technology
In the industrial production, tank body of the low dilute sulfuric acid of the diluted acid generation there are many meeting, such as dilute sulfuric acid, but concentration to storage
Corrosivity it is especially strong, it is difficult to storage steady in a long-term, and comparatively, the sulfuric acid of high concentration to store the corrosivity of material then compared with
It is weak, therefore, storage is collected after industrially generally using concentrate for the lower dilute sulfuric acid of concentration.Currently, in the prior art
Common practice be to directly heat, and then evaporate moisture therein, but first, the dilute sulfuric acid of low concentration is directly evaporated and can be caused
Sulfur oxide largely generates, more demanding to subsequent post-processing, it is difficult to ensure it will not be discharged into air, meanwhile, directly
Heating evaporation is connect there is also a large amount of heat loss, production cost is significantly promoted, and is unfavorable for industrialized application；Such as China
Utility model patent CN200995960Y discloses a kind of diluted acid enrichment facility comprising heat exchanger, sour pond and cyclic acid pump, institute
The heat exchanger stated is graphite modified polypropylene tubular heat exchanger, and the acid inlet of cyclic acid pump, by piping connection, is followed with sour pond
The tube side outlet of piping connection between the acid mouth and the tube side import of heat exchanger of naphthenic acid pump, heat exchanger passes through piping connection to acid
Pond；The shell side import and export of heat exchanger connects heat medium pipeline, and not only required heating quantity of steam is very big for this device, but also directly
The vapor of generation is pumped into water body, and wherein necessarily contains a large amount of oxysulfide（Such as sulfur trioxide）, then again by shape
The diluted acid of Cheng Xin then takes a large amount of heat if being concentrated again to new diluted acid than consumption reduction, and production cost is significantly promoted, difficult
To adapt to industrialized production.
Utility model content
Technical problem to be solved in the utility model is that overcome the deficiencies of the prior art and provide a kind of improved recycling dilute
The concentration systems of sulfuric acid, realize the significantly concentration of dilute sulfuric acid, and reduce the decomposition of sulfuric acid, are also fully utilized by simultaneously
The heat of the concentrated sulfuric acid after concentration reduces heat needed for concentration process, and then has saved cost.
In order to solve the above technical problems, a kind of technical solution that the utility model is taken is as follows：
A kind of concentration systems of recycling dilute sulfuric acid, the concentration systems include diluted acid storage tank, the pre-heating heat-exchanging being sequentially communicated
Device, level-one preconcentrator, two level preconcentrator, concentration kettle, condenser and finished product acid storage tank；The diluted acid storage tank and the preheating
The cold fluid inlet of heat exchanger is connected to, and the level-one preconcentrator is connected to the cold fluid outlet of the preheating heat exchanger, described
Concentration kettle is connected to the thermal fluid inlet of the preheating heat exchanger, the hot fluid outlet ports of the condenser and the preheating heat exchanger
Connection, the concentration systems further include the absorption tower and process water delivery pipe for absorbing sulfur oxide, and the absorption tower is set
It sets on the top of the concentration kettle and is connected to the acid solution feed inlet of the concentration kettle, the two level preconcentrator passes through the suction
Receive tower be connected to the concentration kettle, the process water delivery pipe respectively with the cold fluid inlet of the condenser, the condenser
Cold fluid outlet connection.
More according to the present utility model specific and preferred aspect, the concentration kettle include concentration tank ontology and are used to add
The heated by natural gas device of the heat concentration tank ontology, the concentration tank ontology is connected to the discharge port on the absorption tower, described
Concentration tank body part is located in the heated by natural gas device.
Further, the concentration systems further include device for absorbing tail gas, the combustion tail gas of the heated by natural gas device
Outlet is connected to the device for absorbing tail gas.
Further, the device for absorbing tail gas includes the combustion tail gas outlet with the heated by natural gas device
Tail gas absorber, the chimney being connected to the tail gas absorber, the top of the tail gas absorber and the process water delivery pipe
Input section connection, the lower part of the tail gas absorber is connected to the deferent segment of the process water delivery pipe.
Further, the concentration systems further include conduction oil conveying device, and the conduction oil conveying device includes heat conduction
Oily storage tank, the heat conduction oil circulating pipe being connected to the conduction oil storage tank and the conduction oil being arranged on the heat conduction oil circulating pipe
Pump, the lower part of the level-one preconcentrator, the two level preconcentrator lower part be respectively arranged with the chamber to circulate for conduction oil,
The heat conduction oil circulating pipe and the chamber, heat conduction oil circulating pipe part, which is located in the heated by natural gas device, to be used
In absorption heat and then it is conducted to the conduction oil in the heat conduction oil circulating pipe.
More according to the present utility model specific and preferred aspect, the concentration systems further include spray equipment, described
The top on the top of level-one preconcentrator, the top of the two level preconcentrator and the absorption tower respectively with the spray equipment
Connection.
Further, the top of the spray equipment is connected to the input section of the process water delivery pipe, the spray dress
The lower part set is connected to the deferent segment of the process water delivery pipe.
More according to the present utility model specific and preferred aspect, the level-one preconcentrator and the two level pre-concentration
The agitating device of stirring internal liquid is separately provided on device.
More according to the present utility model specific and preferred aspect, the hot-fluid of the condenser and the preheating heat exchanger
Body outlet is by the first pipeline connection, and the concentration systems further include accident blow-off pipe, the accident blow-off pipe and described first
Pipeline connection.
More according to the present utility model specific and preferred aspect, the diluted acid storage tank are cold with the preheating heat exchanger
Fluid inlet is disposed with variable frequency pump and flowmeter by the second pipeline connection on second pipeline；The concentration systems
Further include be separately positioned on the level-one preconcentrator, the two level preconcentrator and first liquid level gauge in the concentration kettle,
Second liquid level gauge and third liquid level gauge, and respectively with the variable frequency pump, the flowmeter, the first liquid level gauge, described
The control system of two liquid level gauges and third liquid level gauge communication connection.
Due to the use of above technical scheme, the utility model has the following advantages that compared with prior art：
The utility model realizes the significantly concentration of dilute sulfuric acid, and reduces the decomposition of sulfuric acid, reduces to environment
Harm, wherein the setting for passing through preheating heat exchanger so that dilute sulfuric acid and the commutative heat of the concentrated sulfuric acid after concentration greatly utilize
The heat of the concentrated sulfuric acid after concentration, reduces heat needed for concentration process, and then saved cost, while also improving
Thickening efficiency is conducive to industrialized production.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of overall structure diagram of the concentration systems of recycling dilute sulfuric acid of the utility model；
Wherein, 1, diluted acid storage tank；2, preheating heat exchanger；21, cold fluid inlet；22, cold fluid outlet；23, hot fluid enters
Mouthful；24, hot fluid outlet ports；3, level-one preconcentrator；4, two level preconcentrator；5, concentration kettle；51, concentration tank ontology；52, natural
Gas heating device；521, combustion tail gas exports；6, condenser；7, finished product acid storage tank；8, absorption tower；9, process water delivery pipe；
10a, tail gas absorber；10b, chimney；11a, conduction oil storage tank；11b, heat conduction oil circulating pipe；11c, Heat-transfer Oil Pump；12, it sprays
Device；13, the first pipeline；14, accident blow-off pipe；15, the second pipeline；15a, variable frequency pump；15b, flowmeter；16a, the first liquid level
Meter；16b, second liquid level gauge；16c, third liquid level gauge；A, agitating device.
Specific implementation mode
Said program is described further below in conjunction with specific embodiment；It should be understood that these embodiments are for illustrating
The basic principles and main features and advantage of the utility model, and the utility model is not by the scope limitation of following embodiment.
As shown in Figure 1, the present embodiment provides a kind of concentration systems of recycling dilute sulfuric acid comprising the diluted acid storage being sequentially communicated
Slot 1, preheating heat exchanger 2, level-one preconcentrator 3, two level preconcentrator 4, concentration kettle 5, condenser 6 and finished product acid storage tank 7；Diluted acid
Storage tank 1 is connected to the cold fluid inlet 21 of preheating heat exchanger 2, the cold fluid outlet 22 of level-one preconcentrator 3 and preheating heat exchanger 2
Connection, concentration kettle 5 are connected to the thermal fluid inlet 23 of preheating heat exchanger 2, the hot fluid outlet ports of condenser 6 and preheating heat exchanger 2
24 connections.By preheating heat exchanger 2 add so that diluted acid before being concentrated first be concentrated after high-temperature concentrated sulfuric acid exchange heat, into
And the supply of the heat in later stage concentration process can be greatly saved, reduce cost.
Concentration systems further include the absorption tower 8 and process water delivery pipe 9 for absorbing sulfur oxide, and absorption tower 8 is arranged
It is connected on the top of concentration kettle 5 and with the acid solution feed inlet of concentration kettle 5, two level preconcentrator 4 passes through absorption tower 8 and concentration kettle 5
Connection, process water delivery pipe 9 are connected to the cold fluid outlet of the cold fluid inlet of condenser 6, condenser respectively.
In this example, concentration systems further include device for absorbing tail gas, conduction oil conveying device and spray equipment 12；Wherein,
Concentration kettle 5 includes concentration tank ontology 51 and the heated by natural gas device 52 for heating concentration tank ontology 51, concentration tank ontology 51
It is connected to the discharge port on absorption tower 8,51 part of concentration tank ontology is located in heated by natural gas device 52, heated by natural gas device 52
Combustion tail gas outlet 521 be connected to device for absorbing tail gas.
Specifically, device for absorbing tail gas includes the tail gas being connected to the combustion tail gas of heated by natural gas device 52 outlet 521
Absorption tower 10a, the chimney 10b being connected to tail gas absorber 10a, the top of tail gas absorber 10a are defeated with process water delivery pipe 9
Enter section connection, the lower part of tail gas absorber 10a is connected to the deferent segment of process water delivery pipe 9；
Conduction oil conveying device includes conduction oil storage tank 11a, the heat conduction oil circulating pipe 11b being connected to conduction oil storage tank 11a
And the Heat-transfer Oil Pump 11c on heat conduction oil circulating pipe 11b is set, the lower part of level-one preconcentrator 3, two level preconcentrator 4
Lower part is respectively arranged with the chamber to circulate for conduction oil and (is not shown, can be arranged according to form conventional in the prior art, such as press from both sides
Set form etc.), heat conduction oil circulating pipe 11b and chamber, the parts heat conduction oil circulating pipe 11b are located in heated by natural gas device 52
For absorbing heat and then being conducted to the conduction oil in heat conduction oil circulating pipe 11b.
In this example, the top on the top of level-one preconcentrator 3, the top of two level preconcentrator 4 and absorption tower 8 respectively with
Spray equipment 12 is connected to.Specifically, the top of spray equipment 12 is connected to the input section of process water delivery pipe 9, spray equipment 12
Lower part be connected to the deferent segment of process water delivery pipe 9.
In this example, by conduction oil in level-one preconcentrator 3, two level preconcentrator 4 and heated by natural gas device 52 three
Between by circulation, the conduction oil in heat conduction oil circulating pipe 11b is heated by heated by natural gas device 52, and then pass through Heat-transfer Oil Pump
11c makes in the chamber inside conduction oil circulation to level-one preconcentrator 3, two level preconcentrator 4, and then passes through heat transfer pair
Diluted acid in level-one preconcentrator 3, two level preconcentrator 4 carries out pre- thermal concentration, and the acid solution after pre-concentration is entered by absorption tower 8
It is directly concentrated to heated by natural gas is carried out in concentration kettle 5, and the acid solution in concentration kettle 5 has part acid point during thermal concentration
Solution, such as has sulfur trioxide generation, and sulfur trioxide and the vapor of the generation sulfur trioxide after 8 receipts are inhaled on absorption tower together
Cleaner steam is discharged afterwards, is achieved in concentration, and process water is defeated in turn for recycling after the leaching of 12 water of spray equipment for steam
It send in pipe 9, wherein the vapor generated in warm in level-one preconcentrator 3, two level preconcentrator 4 also passes through spray
It is recycled after the leaching of 12 water of shower device and then in process water delivery pipe 9.Conduction oil storage tank 11a can pass through valve transfer when needed
Conduction oil in heat conduction oil circulating pipe 11b is taken away or supplemented.
In this example, it is separately provided for stirring for stirring internal liquid on level-one preconcentrator 3 and two level preconcentrator 4
Device A is mixed, the evaporation of moisture is conducive to；Condenser 6 and the hot fluid outlet ports of preheating heat exchanger 2 are connected by the first pipeline 13
Logical, concentration systems further include accident blow-off pipe 14, and accident blow-off pipe 14 is connected to the first pipeline 13, can be by this set-up mode
Acid solution is excluded when producing present situation condition when needing in time and have passed through heat exchange, first, reduction discharge acid heat amount is too many, avoids shape
At the local acid mist of production position, second is that heat absorption is energy saving；Diluted acid storage tank 1 and the cold fluid inlet of preheating heat exchanger 2 pass through
Second pipeline 15 is connected to, and variable frequency pump 15a and flowmeter 15b are disposed on the second pipeline 15；Concentration systems further include difference
The first liquid level gauge 16a, the second liquid level gauge 16b that are arranged in level-one preconcentrator 3, two level preconcentrator 4 and concentration kettle 5 and
Three liquid level gauge 16c, and respectively with variable frequency pump 15a, flowmeter 15b, first liquid level gauge 16a, second liquid level gauge 16b and third liquid
The control system of position meter 16c communication connections（It is not shown）.The setting of control system can artificial remote monitoring concentration systems into
Expect situation and the condition of production, can be by the acid strength of each concentration position of artificial or device measuring, and then pass through control
System processed controls acid intake amount according to each level condition, realizes real time monitoring and regulation and control, ensures the stabilization of concentration quality with unified.
To sum up, the utility model has the following advantages that：The significantly concentration of dilute sulfuric acid is realized, and reduces point of sulfuric acid
Solution with outer row, reduce the harm to environment, wherein passing through the setting of preheating heat exchanger 2 so that dilute sulfuric acid with concentrate after it is dense
The commutative heat of sulfuric acid is greatly utilized the heat of the concentrated sulfuric acid after concentration, reduces heat needed for concentration process, into
And cost has been saved, be conducive to industrialized production.
Above-described embodiment is only the technical concepts and features for illustrating the utility model, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement according to this, the scope of protection of the utility model can not be limited with this,
It is all according to equivalent change or modification made by the spirit of the present invention essence, should all cover the scope of protection of the utility model it
It is interior.
Claims (10)
1. it is a kind of recycling dilute sulfuric acid concentration systems, which is characterized in that the concentration systems include the diluted acid storage tank being sequentially communicated,
Preheating heat exchanger, level-one preconcentrator, two level preconcentrator, concentration kettle, condenser and finished product acid storage tank；The diluted acid storage tank with
The cold fluid inlet of the preheating heat exchanger is connected to, and the cold fluid outlet of the level-one preconcentrator and the preheating heat exchanger connects
Logical, the concentration kettle is connected to the thermal fluid inlet of the preheating heat exchanger, the heat of the condenser and the preheating heat exchanger
Fluid outlet is connected to, and the concentration systems further include the absorption tower and process water delivery pipe for absorbing sulfur oxide, described
Absorption tower is arranged on the top of the concentration kettle and is connected to the acid solution feed inlet of the concentration kettle, and the two level preconcentrator is logical
The absorption tower is crossed to be connected to the concentration kettle, the process water delivery pipe respectively with the cold fluid inlet of the condenser, institute
State the cold fluid outlet connection of condenser.
2. the concentration systems of recycling dilute sulfuric acid according to claim 1, which is characterized in that the concentration kettle includes concentration tank
Ontology and heated by natural gas device for heating the concentration tank ontology, the discharging of the concentration tank ontology and the absorption tower
Mouth connection, the concentration tank body part are located in the heated by natural gas device.
3. the concentration systems of recycling dilute sulfuric acid according to claim 2, which is characterized in that the concentration systems further include tail
The combustion tail gas outlet of aspiration receiving apparatus, the heated by natural gas device is connected to the device for absorbing tail gas.
4. the concentration systems of recycling dilute sulfuric acid according to claim 3, which is characterized in that the device for absorbing tail gas includes
With the tail gas absorber of the combustion tail gas outlet of the heated by natural gas device, the cigarette being connected to the tail gas absorber
Chimney, the top of the tail gas absorber are connected to the input section of the process water delivery pipe, the lower part of the tail gas absorber with
The deferent segment of the process water delivery pipe is connected to.
5. the concentration systems of recycling dilute sulfuric acid according to claim 2, which is characterized in that the concentration systems further include leading
Hot oil transferring device, the conduction oil conveying device include that conduction oil storage tank, the conduction oil being connected to the conduction oil storage tank follow
Endless tube and the Heat-transfer Oil Pump being arranged on the heat conduction oil circulating pipe, the lower part of the level-one preconcentrator, the two level are pre-
The lower part of inspissator is respectively arranged with the chamber to circulate for conduction oil, the heat conduction oil circulating pipe and the chamber, described
Heat conduction oil circulating pipe part is located in the heated by natural gas device for absorbing heat and then being conducted to the conduction oil cycle
Conduction oil in pipe.
6. the concentration systems of recycling dilute sulfuric acid according to claim 1, which is characterized in that the concentration systems further include spray
Shower device, the top on the top of the level-one preconcentrator, the top of the two level preconcentrator and the absorption tower respectively with
The spray equipment connection.
7. it is according to claim 6 recycling dilute sulfuric acid concentration systems, which is characterized in that the top of the spray equipment with
The input section of the process water delivery pipe is connected to, and the lower part of the spray equipment and the deferent segment of the process water delivery pipe connect
It is logical.
8. the concentration systems of recycling dilute sulfuric acid according to claim 1, which is characterized in that the level-one preconcentrator and institute
State the agitating device that stirring internal liquid is separately provided on two level preconcentrator.
9. the concentration systems of recycling dilute sulfuric acid according to claim 1, which is characterized in that the condenser and the preheating
For the hot fluid outlet ports of heat exchanger by the first pipeline connection, the concentration systems further include accident blow-off pipe, the accident blowdown
Pipe and first pipeline connection.
10. it is according to claim 1 recycling dilute sulfuric acid concentration systems, which is characterized in that the diluted acid storage tank with it is described
The cold fluid inlet of preheating heat exchanger is disposed with variable frequency pump and flow by the second pipeline connection on second pipeline
Meter；The concentration systems further include being separately positioned on the level-one preconcentrator, the two level preconcentrator and the concentration kettle
On first liquid level gauge, second liquid level gauge and third liquid level gauge, and respectively with the variable frequency pump, the flowmeter, described
The control system of one liquid level gauge, the second liquid level gauge and third liquid level gauge communication connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820308919.0U CN207918433U (en) | 2018-03-06 | 2018-03-06 | A kind of concentration systems of recycling dilute sulfuric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820308919.0U CN207918433U (en) | 2018-03-06 | 2018-03-06 | A kind of concentration systems of recycling dilute sulfuric acid |
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| Publication Number | Publication Date |
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| CN207918433U true CN207918433U (en) | 2018-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820308919.0U Expired - Fee Related CN207918433U (en) | 2018-03-06 | 2018-03-06 | A kind of concentration systems of recycling dilute sulfuric acid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110054164A (en) * | 2019-05-23 | 2019-07-26 | 胡平 | A kind of dilute sulfuric acid system for concentrating and recycling |
-
2018
- 2018-03-06 CN CN201820308919.0U patent/CN207918433U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110054164A (en) * | 2019-05-23 | 2019-07-26 | 胡平 | A kind of dilute sulfuric acid system for concentrating and recycling |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |