CN106365125B - A kind of concentrated sulfuric acid absorbs the device and method for the sulfur trioxide that dissociates in oleum - Google Patents
A kind of concentrated sulfuric acid absorbs the device and method for the sulfur trioxide that dissociates in oleum Download PDFInfo
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- CN106365125B CN106365125B CN201610745904.6A CN201610745904A CN106365125B CN 106365125 B CN106365125 B CN 106365125B CN 201610745904 A CN201610745904 A CN 201610745904A CN 106365125 B CN106365125 B CN 106365125B
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- sulfuric acid
- concentrated sulfuric
- absorption tower
- acid
- gas
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- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 title claims abstract description 76
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000010521 absorption reaction Methods 0.000 claims abstract description 52
- 239000002253 acid Substances 0.000 claims abstract description 46
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 18
- 238000012856 packing Methods 0.000 claims abstract description 13
- 238000005086 pumping Methods 0.000 claims abstract description 12
- 239000003595 mist Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 4
- 239000010962 carbon steel Substances 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 2
- 230000037452 priming Effects 0.000 claims 1
- 238000007872 degassing Methods 0.000 abstract description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 4
- 239000005864 Sulphur Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 37
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000012717 electrostatic precipitator Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000005945 translocation Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/74—Preparation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention discloses the device and methods that a kind of concentrated sulfuric acid absorbs the sulfur trioxide that dissociates in oleum comprising concentrated sulfuric acid absorption tower, circulating slot, arcuate channels, overflow pipe, cyclic acid pump, pumping blower, degassing and low-altitude discharged pipe.Concentrated sulfuric acid absorption tower of the present invention integrates point acid, mist eliminating, fluid-tight, a relief function, ensure that SO3Gas fully absorbs, does not escape recycling with the concentrated sulfuric acid；Automatic water-replenishing device ensure that the concentrated sulfuric acid to the optimal absorption effect of sulfur trioxide；Cyclic acid pump is delivered to degassing tower acid separating device as hydrodynamic equipment, by the concentrated sulfuric acid, after packing layer is uniformly distributed, realizes the abundant counter current contacting of gas and liquid two phases；Blower is evacuated as gas dynamic facility (GDF), by 104.5% oleum storage tank, fills the free SO that acid device and underground tank escape3Gas is pumped into absorption tower and fully absorbs, and gas discharging up to standard improves Sulphur ressource comprehensive utilization ratio.
Description
Technical field
The invention belongs to chemical industry environmental protection fields, are related to metallurgical off-gas acid-making, and in particular to a kind of concentrated sulfuric acid absorption 104.5%
The device and method of free sulfur trioxide in oleum.
Background technique
104.5% oleum is called 20% oleum, it may be assumed that contains 20% free SO3Oleum, 104.5% hair
During the storage of cigarette sulfuric acid, dress acid, largely dissociate SO3Gas can escape at the top of storage tank and tank car, a large amount of acid mists be formed, to week
Surrounding environment causes serious pollution.Traditional acid making system dry matter translocation often utilizes the negative of cleaning procedure electrostatic precipitator exhaust pass
Pressure carries out effective removing of flue gas.However, there are particularity for 104.5% oleum, deaerate according to conventional method, on the one hand
Largely free SO3Gas easily forms the concentrated sulfuric acid with absorption moisture in degassing pipeline, and etching glass steel flue gas duct causes deaeration pipe
Road blocking；On the other hand largely dissociate SO3Gas produces acid mist in conjunction with exporting large quantity of moisture with electrostatic precipitator, in subsequent handling
It not can be removed, a large amount of acid mists, which enter blower, can corrode impeller, and can adversely affect to follow-up equipment and catalyst etc., lead to tail
Gas chimney is smoldered.
Summary of the invention
The present invention is in view of the deficiency of the prior art, sour in order to solve 104.5% oleum tank top and dress
The free sulfur trioxide of tank car top cover (fill sour device) evolution provides a kind of concentrated sulfuric acid and absorbs three oxidations that dissociate in oleum
The device and method of sulphur.
The present invention adopts the following technical scheme: a kind of dress for absorbing the sulfur trioxide that dissociates in oleum using the concentrated sulfuric acid
It sets, including concentrated sulfuric acid absorption tower, circulating slot, underground tank, the sour device of dress, 104.5% oleum storage tank；Concentrated sulfuric acid absorption tower is certainly
It is lower and it is upper set respectively hole, grate plate, packing layer, acid separating device, mist eliminating device and on enter hole；104.5% oleum storage tank
Absorption tower lower part is passed to by pipeline, sour device is filled and is communicated with absorption tower tower body lower part by entrance deaeration pipe, absorption tower tower body
Bottom is provided with arcuate channels, and extends to circulating slot bottom, and circulating slot is equipped with overflow pipe and automatically adds water pipe, the insertion of overflow pipe end
The cyclic acid pump for absorbing liquid to be continuously conveyed is equipped in underground tank, between circulating slot and the acid separating device on absorption tower；Absorption tower
Top be connected with pumping blower, be evacuated blower output end connection low-altitude discharged pipe.
Further, 8 top of arcuate channels is lower than the input end of overflow pipe.
Further, it automatically adds water pipe end and extends to circulation trench bottom, automatically add water the automatic water-adding valve and circulation of pipe
The concentration of slot interlocks
Further, the input terminal for being evacuated blower is connected to by 316L stainless steel deaeration pipe with the top on absorption tower.
Further, the low-altitude discharged pipe for being evacuated the output end connection of blower is ordinary carbon steel low latitude evacuated tube, common carbon
The top of steel low latitude evacuated tube is equipped with elbow.
A method of the sulfur trioxide that dissociates in 104.5% oleum is absorbed using the above-mentioned apparatus concentrated sulfuric acid, it is specific to wrap
Include following steps:
A.104.5% the free SO escaped in oleum storage tank, dress acid device and underground tank3 From absorption tower
Lower part enters, and the concentrated sulfuric acid that mass concentration in circulating slot is 93-98% is delivered to absorption tower point acid with cyclic acid pump
Device, after packing layer is uniformly distributed with enter absorption tower in free SO from bottom to top3Gas uniformly contacts, SO3Gas quilt
The concentrated sulfuric acid fully absorbs the generation concentrated sulfuric acid, and the concentrated sulfuric acid of generation flows into circulating slot, cyclic absorption；
B. it automatically adds water the automatic water-adding valve on pipe and is adjusted according to circulating slot sulfuric acid concentration and enter adding in circulating slot
Water, control loop slot h 2 so 4 concentration maintains 98.5-99%, to SO3Gas is fully absorbed, with
SO3The continuous continuous progress absorbed and add water of gas, the liquid level of circulating slot are gradually increasing, and the concentrated sulfuric acid passes through after reaching a certain height
Overflow pipe flows into underground tank, finally squeezes into sour library；
C. the sour device of 104.5% oleum storage tank described in step A, dress and the free SO of underground tank evolution3
Gas, after packing layer gas distribution, Pu foam layer mist eliminating, tail gas up to standard is carried out low by pumping blower feeding low-altitude discharged pipe
Idle discharge is put.
Preferably, control loop slot sulfuric acid concentration maintains 98.5%.
The beneficial effects of the present invention are: the present invention includes concentrated sulfuric acid absorption tower, circulating slot, arcuate channels, overflow pipe, circulation
Acid pump, pumping blower, degassing and low-altitude discharged pipe.Concentrated sulfuric acid absorption tower integrates point acid, mist eliminating, fluid-tight, a relief function, protects
SO is demonstrate,proved3Gas fully absorbs, does not escape recycling with the concentrated sulfuric acid；Automatic water-replenishing device control of the present invention absorbs the concentrated sulfuric acid
Concentration maintains 98.5% or so, ensure that optimal absorption effect；Cyclic acid pump conveys the concentrated sulfuric acid as hydrodynamic equipment
The abundant counter current contacting of gas and liquid two phases is realized after packing layer is uniformly distributed to degassing tower acid separating device；Blower is evacuated as gas
Body power-equipment by 104.5% oleum storage tank, fills the free SO that acid device and underground tank escape3Gas is pumped into absorption tower and fills
Divide and absorb, gas low-altitude discharged up to standard improves the comprehensive utilization ratio of Sulphur ressource, and operation of the present invention is simple, absorption efficiency is high, subtracts
Light environmental pollution.
Detailed description of the invention
Fig. 1 is process flow diagram of the invention.
In figure: 1- underground tank, the sour device of 2- dress, 3-104.5% oleum storage tank, 4- overflow pipe, 5- entrance deaeration pipe,
6- concentrated sulfuric acid absorption tower enters hole, 8- arcuate channels, 9- circulating slot, 10- tripping in hole, 11- grate plate, 12- packing layer, 13- on 7-
Acid separating device, 14- mist eliminating device, 15- cyclic acid pump, 16- are evacuated blower, 17- low-altitude discharged pipe, and 18- automatically adds water pipe.
Specific embodiment
A kind of concentrated sulfuric acid absorbs the device for the sulfur trioxide gas that dissociates in oleum, including concentrated sulfuric acid absorption tower 6, circulation
Slot 9, arcuate channels 8, overflow pipe 4, cyclic acid pump 15, pumping blower 16, degassing 5 and low-altitude discharged pipe 17, concentrated sulfuric acid absorption tower 6
Set respectively from bottom to top grate plate 11, tripping in hole 10, filler 12, acid separating device 13, mist eliminating device 14 and on enter hole 7, under tower body
Portion, which opens arcuate channels 8 and extends to 9 bottom of circulating slot, to be fixed, and 9 overflow pipe 4 of circulating slot is inserted into 1 bottom of underground tank, and 8 top of arcuate channels is low
In groove body overflow pipe 4；It automatically adds water pipe 18 and extends to circulation trench bottom, automatic water-adding valve and circulating slot concentration interlocking 18；Circulation
Continuous conveying device of the cyclic acid pump 15 as absorbing liquid is configured between slot 9 and absorption tower 6；Blower 16 is evacuated as gas conveying
Power is provided, front and back ends are separately connected 316L stainless steel deaeration pipe 5 and ordinary carbon steel low-altitude discharged pipe 17, low-altitude discharged pipe 17
Top sets elbow.
Process flow are as follows: 98.5% concentrated sulfuric acid cyclic acid pump 15 in circulating slot 9 is delivered to 6 acid separating device 13 of absorption tower,
Free SO after filler 12 is uniformly distributed and from bottom to top3Gas uniformly contacts, SO3Gas fully absorbs generation by the concentrated sulfuric acid
The concentrated sulfuric acid；The automatic water-adding valve automatically added water on pipe 18 adjusts amount of water, 9 sulfuric acid of control loop slot according to circulating slot sulfuric acid concentration
Concentration maintains 98.5% or so, to guarantee to SO3The optimal absorption effect of gas；With SO3The continuous absorption of gas and plus water
Continuous progress, 9 liquid level of circulating slot is gradually increasing, and the concentrated sulfuric acid flows into underground tank 1 through overflow pipe 4 after reaching a certain height, finally
Squeeze into sour library 3；104.5% oleum storage tank 3 fills the free SO that sour device 2 and underground tank 1 escape3Gas, from absorption tower bottom
Portion enter, after 12 gas distribution of packing layer, 14 mist eliminating of mist eliminating device, tail gas up to standard by pumping blower 16 be sent into low-altitude discharged pipe 17 into
Row low-altitude discharged；Whole set process realizes free SO3Effective removing of gas, alleviates environmental pollution, improves Sulphur ressource
Utilization rate.
Embodiment 1
By the liquid concentrated sulfuric acid of concentration 98.5% from dress acid tank vehicle be injected into circulating slot 9, in advance check fuming acid underground tank 1,
Fill the pipes such as sour device 2,104.5% oleum storage tank 3, the entrance deaeration pipe 5 on absorption tower, pumping blower 16, low-altitude discharged pipe 17
Line, valve guarantee that gas circuit is unimpeded.104.5% oleum storage tank 3 fills the free SO escaped in sour device 2 and underground tank 13 From
Absorption tower lower part is passed through.Start absorption tower cyclic acid pump 15,15 flow of cyclic acid pump about 8m when 9 liquid level of circulating slot reaches 1m3/
The concentrated sulfuric acid is delivered to and absorbs tower top acid separating device 13 by h, through packing layer 12 from tower top from however under be uniformly distributed, with from lower and
On free SO3Gas comes into full contact with, absorbs, SO3Gas fully absorbs the generation concentrated sulfuric acid, the concentrated sulfuric acid stream of generation by the concentrated sulfuric acid
Enter and be recycled in circulating slot 9,9 liquid level of circulating slot reached 0.98m at that time, open circulating slot automatically add water automatic on pipe 18 plus
Water valve, amount of water guarantee in 0.1m3/h.With the growth of soak time, 9 liquid level of circulating slot is gradually risen, when liquid level is more than 1m
Underground tank 1 is flowed by overflow pipe 4, circulating slot liquid level remains at 1m.After being evacuated the starting of blower 16, entrance tolerance is about
1000m3/ h, SO in low-altitude discharged tail gas3Content is 43mg/Nm3, qualified discharge.
Embodiment 2
The liquid concentrated sulfuric acid of concentration 98% is injected into circulating slot 9 from dress acid tank vehicle, checks fuming acid underground tank 1, dress in advance
The pipelines, valve such as sour device 2, oleum storage tank 3, absorption tower entrance deaeration pipe 5, pumping blower 16, low-altitude discharged pipe 17, are protected
It is unimpeded to demonstrate,prove gas circuit.104.5% oleum storage tank 3 fills the free SO escaped in sour device 2 and underground tank 13 From absorption tower lower part
It is passed through.Start absorption tower cyclic acid pump 15, cyclic acid pump flow about 8m when circulating slot liquid level reaches 1m3/ h, the concentrated sulfuric acid is defeated
Send to absorb tower top acid separating device 13, through packing layer 12 from tower top from however under be uniformly distributed, with free SO from bottom to top3Gas
After body comes into full contact with, absorbs, concentrated sulfuric acid concentration is slightly elevated to enter circulating slot 9, and the concentrated sulfuric acid circulation flowed into circulating slot 9 makes
With as circulating slot liquid level 0.98m, opening circulating slot automatically adds water the automatic water-adding valve on pipe 18, and amount of water guarantees in 0.08m3/
h.Control loop slot h 2 so 4 concentration maintains 98.5%, and with the growth of soak time, 9 liquid level of circulating slot is gradually risen, liquid
Underground tank 1 is flowed by overflow pipe 4 when position is more than 1m, circulating slot liquid level remains at 1m.After being evacuated the starting of blower 16, entrance
Tolerance is about 1000m3/ h, SO in low-altitude discharged tail gas3Content is 40 mg/Nm3, qualified discharge.
Embodiment 3
The liquid concentrated sulfuric acid of concentration 93% is injected into circulating slot 9 from dress acid tank vehicle, checks fuming acid underground tank 1, dress in advance
The pipelines, valve such as sour device 2, oleum storage tank 3, absorption tower entrance deaeration pipe 5, pumping blower 16, low-altitude discharged pipe 17, are protected
It is unimpeded to demonstrate,prove gas circuit.104.5% oleum storage tank 3 fills the free SO escaped in sour device 2 and underground tank 13 From absorption tower lower part
It is passed through.Start absorption tower cyclic acid pump 15, cyclic acid pump flow about 6m when circulating slot liquid level reaches 1m3/ h, the concentrated sulfuric acid is defeated
Send to absorb tower top acid separating device 13, through packing layer 12 from tower top from however under be uniformly distributed, with free SO from bottom to top3Gas
After body comes into full contact with, absorbs, concentrated sulfuric acid concentration is slightly elevated to enter circulating slot 9, and the concentrated sulfuric acid circulation flowed into circulating slot 9 makes
With as circulating slot liquid level 0.98m, opening circulating slot automatically adds water the automatic water-adding valve on pipe 18, and amount of water guarantees in 0.08m3/
h.Control loop slot h 2 so 4 concentration maintains 99%.With the growth of soak time, 9 liquid level of circulating slot is gradually risen, liquid level
Underground tank 1 is flowed by overflow pipe 4 when more than 1m, circulating slot liquid level remains at 1m.After being evacuated the starting of blower 16, enter implication
Amount is about 1000m3/ h, SO in low-altitude discharged tail gas3Content is 35 mg/Nm3, qualified discharge.
Claims (5)
1. the device that a kind of concentrated sulfuric acid absorbs the sulfur trioxide that dissociates in oleum, it is characterised in that: including concentrated sulfuric acid absorption tower
(6), the sour device (2) of circulating slot (9), underground tank (1), dress, 104.5% oleum storage tank (3)；Concentrated sulfuric acid absorption tower from lower and
It is upper to be set respectively into hole (10), grate plate (11), packing layer (12), acid separating device (13), mist eliminating device (14) and above enter hole
(7)；104.5% oleum storage tank (3) passes to concentrated sulfuric acid absorption tower lower part by pipeline, fills sour device (2) and absorption tower tower body
Lower part is communicated by entrance deaeration pipe (5), and absorption tower tower body bottom is provided with arcuate channels (8), and extends to circulating slot (9) bottom,
Circulating slot (9) is equipped with overflow pipe (4) and automatically adds water pipe (18), and overflow pipe (4) end is inserted into underground tank (1), arcuate channels
(8) top is lower than the input end of overflow pipe, is equipped between circulating slot (9) and the acid separating device (13) on absorption tower for being continuously conveyed
The cyclic acid pump (15) of absorbing liquid；It automatically adds water pipe (18) end and extends to circulating slot (9) bottom, automatically add water oneself of pipe (18)
The concentration of dynamic priming valve and circulating slot interlocks；Pumping blower (16) is connected at the top of absorption tower, the output end for being evacuated blower connects
Connect low-altitude discharged pipe (17).
2. the device that a kind of concentrated sulfuric acid as described in claim 1 absorbs the sulfur trioxide that dissociates in oleum, it is characterised in that:
The input terminal of pumping blower is connected to by 316L stainless steel deaeration pipe with the top on concentrated sulfuric acid absorption tower.
3. the device that a kind of concentrated sulfuric acid as described in claim 1 absorbs the sulfur trioxide that dissociates in oleum, it is characterised in that:
The low-altitude discharged pipe (17) for being evacuated the output end connection of blower is ordinary carbon steel low latitude evacuated tube, ordinary carbon steel low latitude evacuated tube
Top is equipped with elbow.
4. a kind of method that the sulfur trioxide that dissociates in oleum is absorbed using the device as described in claim 1 concentrated sulfuric acid,
It is characterized in that: specifically comprising the following steps:
A. 104.5% oleum storage tank (3), fill the free SO3 that escapes in sour device (2) and underground tank (1) from absorption tower
Lower part enters, and the concentrated sulfuric acid that mass concentration in circulating slot (9) is 93-98% is delivered to absorption tower point acid with cyclic acid pump (15)
Device (13) uniformly contacts after packing layer (12) is uniformly distributed with the free SO3 gas from bottom to top entered in absorption tower,
SO3 gas fully absorbs the generation concentrated sulfuric acid by the concentrated sulfuric acid, and the concentrated sulfuric acid of generation flows into circulating slot (9), cyclic absorption；
B. it automatically adds water the automatic water-adding valve on pipe (18) and is adjusted according to circulating slot (9) sulfuric acid concentration and entered in circulating slot (9)
Amount of water, control loop slot h 2 so 4 concentration maintains 98.5-99%, to SO3Gas is fully absorbed, with SO3 gas
The continuous continuous progress absorbed and add water, the liquid level of circulating slot (19) is gradually increasing, and the concentrated sulfuric acid is through overflowing after reaching a certain height
Flow tube (4) flows into underground tank (1), finally squeezes into sour library；
C. the free SO3 gas of the sour device (2) of 104.5% oleum storage tank (3) described in step A, dress and underground tank (1) evolution
Body, after packing layer gas distribution, Pu foam layer mist eliminating, tail gas up to standard is sent into low-altitude discharged pipe (17) by pumping blower (16) and carries out low latitude
Discharge.
5. the method that a kind of concentrated sulfuric acid as claimed in claim 4 absorbs the sulfur trioxide that dissociates in oleum, it is characterised in that:
Control loop slot (9) sulfuric acid concentration maintains 98.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610745904.6A CN106365125B (en) | 2016-08-29 | 2016-08-29 | A kind of concentrated sulfuric acid absorbs the device and method for the sulfur trioxide that dissociates in oleum |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610745904.6A CN106365125B (en) | 2016-08-29 | 2016-08-29 | A kind of concentrated sulfuric acid absorbs the device and method for the sulfur trioxide that dissociates in oleum |
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| CN106365125A CN106365125A (en) | 2017-02-01 |
| CN106365125B true CN106365125B (en) | 2019-08-06 |
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| CN107051124A (en) * | 2017-03-24 | 2017-08-18 | 鲁西化工集团股份有限公司 | The environmentally friendly recovery system and technique of a kind of emptying storage tank gas |
| CN109879255A (en) * | 2019-04-27 | 2019-06-14 | 招远市招金金合科技有限公司 | A kind of system and method for pyrite-based sulfuric acid production system production refined sulfuric acid |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201186882Y (en) * | 2007-12-29 | 2009-01-28 | 长沙有色冶金设计研究院 | Drying or absorbing tower for preparing sulfuric acid |
| CN101905872A (en) * | 2010-07-30 | 2010-12-08 | 金川集团有限公司 | Device for absorbing SO3 generated in process of preparing sulfuric acid |
| CN202164116U (en) * | 2011-06-29 | 2012-03-14 | 安徽博远化工有限公司 | Sulphuric acid reaction unit |
| CN102556982A (en) * | 2011-12-30 | 2012-07-11 | 江苏新宏大集团有限公司 | Low-temperature exhaust heat system for sulfuric acid recovering device and application of low-temperature exhaust heat system |
-
2016
- 2016-08-29 CN CN201610745904.6A patent/CN106365125B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201186882Y (en) * | 2007-12-29 | 2009-01-28 | 长沙有色冶金设计研究院 | Drying or absorbing tower for preparing sulfuric acid |
| CN101905872A (en) * | 2010-07-30 | 2010-12-08 | 金川集团有限公司 | Device for absorbing SO3 generated in process of preparing sulfuric acid |
| CN202164116U (en) * | 2011-06-29 | 2012-03-14 | 安徽博远化工有限公司 | Sulphuric acid reaction unit |
| CN102556982A (en) * | 2011-12-30 | 2012-07-11 | 江苏新宏大集团有限公司 | Low-temperature exhaust heat system for sulfuric acid recovering device and application of low-temperature exhaust heat system |
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Effective date of registration: 20240221 Address after: 737100 No. 2 Lanzhou Road, Beijing Road Street, Jinchuan District, Jinchang City, Gansu Province Patentee after: Jinchuan Group Nickel Cobalt Co.,Ltd. Country or region after: China Address before: 737103 No. 98, Jinchuan Road, Jinchang, Gansu Patentee before: JINCHUAN GROUP Co.,Ltd. Country or region before: China |
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| TR01 | Transfer of patent right |