CN109399576A - A kind of viscose glue exhaust gas TRS Recovered sulphur purification process and system - Google Patents
A kind of viscose glue exhaust gas TRS Recovered sulphur purification process and system Download PDFInfo
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- CN109399576A CN109399576A CN201811433118.8A CN201811433118A CN109399576A CN 109399576 A CN109399576 A CN 109399576A CN 201811433118 A CN201811433118 A CN 201811433118A CN 109399576 A CN109399576 A CN 109399576A
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- Prior art keywords
- separation
- slot
- trs
- enters
- exhaust gas
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- 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
- C01B17/02—Preparation of sulfur; Purification
- C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
Abstract
The present invention relates to a kind of viscose glue exhaust gas TRS Recovered sulphur purification processes, the present invention compensates in sulphur caused by existing viscose glue exhaust gas TRS recovery technology, the problem of causing TRS sulphur not to be available due to the Fe supply containing complexing, by settle and separate repeatedly, centrifuge separation and the circulation technology of washing, the Complexing Iron auxiliary agent being rich in TRS sulphur is recycled.
Description
Technical field
The present invention relates to sulphur recovery field, relate in particular to a kind of viscose glue exhaust gas TRS Recovered sulphur purification process and
System.
Background technique
At this stage, most important technique uses super Claus method in sulfur removal technology, is mainly used in petrochemical industry
Desulfurization, and viscose rayon industry traditional handicraft carries out desulfurization using alkali spray mode, at high cost, by-product is not easy to handle.TRS skill
Art uses Complexing Iron auxiliary agent, and H will be rich in caused by adhering process2The exhaust gas of S is absorbed, by sending out with the middle oxygen of air
Raw oxidation reaction, produces sulphur.And currently due to the limitation of technology, the sulphur recycled is after filters pressing, network in component
The content for closing iron auxiliary agent is still up to 40%, cannot be directly as the raw material of subsequent acid-making process.
Summary of the invention
It is an object of the invention to solve the above-mentioned problems in the prior art, a kind of viscose glue exhaust gas TRS recycling is provided
Sulphur purification process and system.The present invention compensates in sulphur caused by existing viscose glue exhaust gas TRS recovery technology, because containing complexing
Fe supply and the problem of cause TRS sulphur not to be available, by settle and separate repeatedly, centrifuge separation and the circulation technology of washing,
The Complexing Iron auxiliary agent being rich in TRS sulphur is recycled.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of viscose glue exhaust gas TRS Recovered sulphur purification process, which comprises the steps of:
In TRS reactor, the exhaust gas and complexing agent that generate in viscose glue production process are subjected to oxidation reaction, stood, in separation
Clear liquid, bottom precipitation enter first separation slot；
It in first separation slot, stands, supernatant is sent to reactor, and bottom precipitation enters a centrifuge, is once taken off
Water separation；
Precipitating after primary dewatering separation enters once washing slot, and clear water is added, and once washing is completed in stirring；
Precipitating after once washing enters the second-order separation slot, stands, and supernatant is sent to level-one separating tank, and bottom precipitation enters secondary
Centrifuge carries out second dehydration separation；
Precipitating after second dehydration separation enters secondary washing slot, and clear water is added, and secondary washing is completed in stirring；
Precipitating after secondary washing enters three-level separating tank, stands, and supernatant is sent to the second-order separation slot, and bottom precipitation enters three times
Centrifuge carries out triple dewatering separation；
Precipitating after triple dewatering separation enters sink three times, and clear water, stirring is added, and completion is washed three times；
Precipitating after washing three times enters filter press, and filters pressing obtains sulphur.
A kind of viscose glue exhaust gas TRS Recovered sulphur purification system, it is characterised in that: including sequentially connected reactor, once
Separating tank, a centrifuge, once washing slot, secondary separation slot, secondary centrifuging machine, secondary washing slot, three times separating tank, three times
Centrifuge, three times sink and filter press.
The water outlet of the secondary separation slot is connect by pump with the feed inlet of first separation slot.
The water outlet of the separating tank three times is connect by pump with the feed inlet of secondary separation slot.
Using the present invention has the advantages that
One, the present invention compensates in sulphur caused by existing viscose glue exhaust gas TRS recovery technology, causes due to the Fe supply containing complexing
Not the problem of TRS sulphur is not available, by settle and separate repeatedly, centrifuge separation and the circulation technology of washing, by institute in TRS sulphur
The Complexing Iron auxiliary agent being rich in is recycled.
Two, it solves the problems, such as not handled with routine techniques because TRS sulphur iron tramp containing complexing is more, so that it is produced
Product can normally come into operation, and reduce the use cost of Complexing Iron auxiliary agent.
Detailed description of the invention
Fig. 1 is system diagram of the invention；
Figure label are as follows: 1, reactor, 2, first separation slot, 3, once washing slot, 4, secondary separation slot, 5, secondary washing
Slot, 6, separating tank three times, 7, sink three times, 8, filter press, 9, centrifuges, 10, secondary centrifuging machine, 11, be centrifuged three times
Machine.
Specific embodiment
The exhaust gas generated in viscose glue production process is passed through TRS reactor 1 and generates the sauce rich in complexing agent and sulphur, is led to
It crosses lower section discharge gate and enters level-one separating tank, slurry and supernatant separation are realized by way of settle and separate.Bottom sauce is logical
It crosses sauce and is pumped to a centrifuge 9 and carry out dehydration separation, clear liquid is recycled to TRS reactor 1 by pump above level-one separating tank.
TRS sulphur enters once washing slot 3 after dehydration of centrifuge 9, and clear water is added, under the collective effect of stirring,
Realize once washing.Mixed slurry enters the second-order separation slot, and slurry and supernatant separation are realized by way of settle and separate.Bottom
Portion's sauce is pumped to secondary centrifuging machine 10 by sauce and carries out dehydration separation.Clear liquid is recycled to one by pump above the second-order separation slot
Grade separating tank.
TRS sulphur enters secondary washing slot 5 after secondary centrifuging machine 10 is dehydrated, and clear water is added, in the collective effect of stirring
Under, realize secondary washing.Mixed slurry enters three-level separating tank, and slurry and supernatant point are realized by way of settle and separate
From.Bottom sauce is pumped to centrifuge 11 three times by sauce and carries out dehydration separation.Clear liquid passes through blowback above three-level separating tank
It receives to the second-order separation slot.
A kind of viscose glue exhaust gas TRS Recovered sulphur purification system, including sequentially connected reactor 1, first separation slot 2, one
Secondary centrifuge 9, once washing slot 3, secondary separation slot 4, secondary centrifuging machine 10, secondary washing slot 5, three times separating tank 6, three times
Centrifuge 11, three times sink 7 and filter press 8.
The water outlet of the secondary separation slot 4 is connect by pump with the feed inlet of first separation slot 2.
The water outlet of the separating tank three times 6 is connect by pump with the feed inlet of secondary separation slot 4.
Claims (4)
1. a kind of viscose glue exhaust gas TRS Recovered sulphur purification process, which comprises the steps of:
In reactor (1), the exhaust gas and complexing agent that generate in viscose glue production process are subjected to oxidation reaction, stood, in separation
Clear liquid, bottom precipitation enter first separation slot (2)；
In first separation slot (2), standing, supernatant is sent to reactor (1), and bottom precipitation enters a centrifuge (9), into
The separation of row primary dewatering；
Precipitating after primary dewatering separation enters once washing slot (3), and clear water is added, and once washing is completed in stirring；
Precipitating after once washing enters the second-order separation slot, stands, and supernatant is sent to level-one separating tank, and bottom precipitation enters secondary
Centrifuge (10) carries out second dehydration separation；
Precipitating after second dehydration separation enters secondary washing slot (5), and clear water is added, and secondary washing is completed in stirring；
Precipitating after secondary washing enters three-level separating tank, stands, and supernatant is sent to the second-order separation slot, and bottom precipitation enters three times
Centrifuge (11) carries out triple dewatering separation；
Precipitating after triple dewatering separation enters sink (7) three times, and clear water, stirring is added, and completion is washed three times；
Precipitating after washing three times enters filter press, and filters pressing obtains sulphur.
2. a kind of viscose glue exhaust gas TRS Recovered sulphur purification system, it is characterised in that: including sequentially connected reactor (1), once
Separating tank (2), a centrifuge (9), once washing slot (3), secondary separation slot (4), secondary centrifuging machine (10), secondary washing
Slot (5), three times separating tank (6), three times centrifuge (11), three times sink (7) and filter press (8).
3. a kind of viscose glue exhaust gas TRS Recovered sulphur purification system as described in claim 1, the secondary separation slot (4) goes out
The mouth of a river is connect by pump with the feed inlet of first separation slot (2).
4. a kind of viscose glue exhaust gas TRS Recovered sulphur purification system as described in claim 1, the separating tank three times (6) goes out
The mouth of a river is connect by pump with the feed inlet of secondary separation slot (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811433118.8A CN109399576A (en) | 2018-11-28 | 2018-11-28 | A kind of viscose glue exhaust gas TRS Recovered sulphur purification process and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811433118.8A CN109399576A (en) | 2018-11-28 | 2018-11-28 | A kind of viscose glue exhaust gas TRS Recovered sulphur purification process and system |
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| Publication Number | Publication Date |
|---|---|
| CN109399576A true CN109399576A (en) | 2019-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811433118.8A Pending CN109399576A (en) | 2018-11-28 | 2018-11-28 | A kind of viscose glue exhaust gas TRS Recovered sulphur purification process and system |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1669931A (en) * | 2005-02-21 | 2005-09-21 | 东南大学 | Method for preparing alumina powder with small particle diameter |
| CN101823700A (en) * | 2009-12-03 | 2010-09-08 | 西安航天动力机械厂 | Separation and purification method of liquid-state sulfur suspension |
| CN203736978U (en) * | 2014-02-25 | 2014-07-30 | 江西省铜鼓县二源化工有限责任公司 | Precipitating and dewatering device |
| CN107055576A (en) * | 2017-05-02 | 2017-08-18 | 乐山沃耐稀电子材料有限公司 | A kind of preparation method of high-purity lithium fluoride |
| CN108097021A (en) * | 2017-12-25 | 2018-06-01 | 宜宾丝丽雅股份有限公司 | A kind of TRS purifications technique |
| CN108134046A (en) * | 2018-01-09 | 2018-06-08 | 成光耀 | A kind of clean preparation method of coprecipitation positive electrode carbonate precursor |
| CN207899230U (en) * | 2018-01-16 | 2018-09-25 | 唐山绿源环保科技有限公司 | A kind of novel Complexing Iron desulphurization system |
-
2018
- 2018-11-28 CN CN201811433118.8A patent/CN109399576A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1669931A (en) * | 2005-02-21 | 2005-09-21 | 东南大学 | Method for preparing alumina powder with small particle diameter |
| CN101823700A (en) * | 2009-12-03 | 2010-09-08 | 西安航天动力机械厂 | Separation and purification method of liquid-state sulfur suspension |
| CN203736978U (en) * | 2014-02-25 | 2014-07-30 | 江西省铜鼓县二源化工有限责任公司 | Precipitating and dewatering device |
| CN107055576A (en) * | 2017-05-02 | 2017-08-18 | 乐山沃耐稀电子材料有限公司 | A kind of preparation method of high-purity lithium fluoride |
| CN108097021A (en) * | 2017-12-25 | 2018-06-01 | 宜宾丝丽雅股份有限公司 | A kind of TRS purifications technique |
| CN108134046A (en) * | 2018-01-09 | 2018-06-08 | 成光耀 | A kind of clean preparation method of coprecipitation positive electrode carbonate precursor |
| CN207899230U (en) * | 2018-01-16 | 2018-09-25 | 唐山绿源环保科技有限公司 | A kind of novel Complexing Iron desulphurization system |
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Application publication date: 20190301 |