CN112742194A - Taurine coarse crystal processing system - Google Patents
Taurine coarse crystal processing system Download PDFInfo
- Publication number
- CN112742194A CN112742194A CN202011286591.5A CN202011286591A CN112742194A CN 112742194 A CN112742194 A CN 112742194A CN 202011286591 A CN202011286591 A CN 202011286591A CN 112742194 A CN112742194 A CN 112742194A
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- China
- Prior art keywords
- air
- bin
- tower
- spray
- taurine
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/42—Separation; Purification; Stabilisation; Use of additives
- C07C303/44—Separation; Purification
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
- C07C309/01—Sulfonic acids
- C07C309/02—Sulfonic acids having sulfo groups bound to acyclic carbon atoms
- C07C309/03—Sulfonic acids having sulfo groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton
- C07C309/13—Sulfonic acids having sulfo groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton
- C07C309/14—Sulfonic acids having sulfo groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton containing amino groups bound to the carbon skeleton
Abstract
The invention discloses a taurine coarse crystal processing system, which comprises: the device comprises a coarse crystal bin, a spray absorption tower and an air induction pipe for connecting the coarse crystal bin and the spray absorption tower, wherein the coarse crystal bin is a closed bin body, a plurality of air-drying platforms are arranged in the coarse crystal bin, an air induction cover is correspondingly arranged above each air-drying platform, the air induction cover is connected with the part of the air induction pipe extending into the coarse crystal bin, the part of the air induction pipe extending into the coarse crystal bin is positioned right above the coarse crystal bin, an induced draft fan is arranged on the air induction pipe, and the outlet of the air induction pipe is connected with the air inlet of the spray absorption tower. Through the mode, the crystal can be purified on the basis of not influencing the properties of the taurine crystal, the purity of the taurine is improved, the comprehensive cyclic utilization of sulfur dioxide is realized, and the air pollution caused by the fact that the sulfur dioxide in the taurine crystal directly escapes to the air is effectively prevented.
Description
Technical Field
The invention relates to the field of taurine production, and particularly relates to a taurine coarse crystal processing system.
Background
Taurine is essential amino acid for human body, and has important effect on development of nervous system of fetus and infant. Taurine can be widely used in the fields of medicine, food additive, fluorescent whitening agent, organic synthesis and the like, and also can be used as biochemical reagent, wetting agent, pH buffering agent and the like. Sulfite is generally used in the process of preparing taurine, so that considerable amount of sulfur dioxide molecules exist in the taurine crystal which is just prepared from the solution, and if the sulfur dioxide molecules are not removed in advance, the sulfur dioxide molecules are slowly released into the air in the process of storage and transportation to pollute the air, and when the taurine is used as a raw material, the sulfur dioxide molecules can influence the yield of corresponding products.
Disclosure of Invention
The invention mainly solves the technical problem of providing a taurine coarse crystal processing system which can preliminarily remove sulfur dioxide molecules remained in coarse crystals.
In order to solve the technical problems, the invention adopts a technical scheme that: providing a taurine crude crystal processing system, wherein the taurine crude crystal processing system comprises: the device comprises a coarse crystal bin, a spray absorption tower and an air inducing pipeline for connecting the coarse crystal bin and the spray absorption tower, wherein the coarse crystal bin is a closed bin body, a plurality of air-drying platforms are arranged in the coarse crystal bin, an air inducing cover is correspondingly arranged above each air-drying platform and is connected with a part of the air inducing pipeline extending into the coarse crystal bin, a part of the air inducing pipeline extending into the coarse crystal bin is positioned right above the coarse crystal bin, an induced draft fan is arranged on the air inducing pipeline, and an air outlet of the air inducing pipeline is connected with an air inlet of the spray absorption tower.
In a preferred embodiment of the present invention, a barometer is installed in the coarse crystal bin, and when coarse crystals are placed in the coarse crystal bin, the coarse crystal bin needs to be kept in a negative pressure pumping state.
In a preferred embodiment of the invention, the area of the cover opening of each induced air cover is larger than the area of the corresponding air-curing platform, and the distance between each induced air cover and the surface of the air-curing platform is 0.8-1.2 m.
In a preferred embodiment of the present invention, the spray solution used in the spray absorption tower is dilute ammonia water with a concentration of 1-3%.
In a preferred embodiment of the invention, the spray absorption tower is a secondary spray absorption tower, the secondary spray absorption tower is composed of a primary tower and a secondary tower, each stage of tower is composed of a spray header, a filler and a spray liquid collecting tank, the spray liquid collecting tank of the primary tower is connected with the spray liquid collecting tank of the secondary tower through a communicating pipe, valves are installed on the communicating pipe, a circulating pipeline is arranged between the spray headers of the primary tower and the secondary tower and the spray liquid collecting tank, the air outlet of the primary tower is connected with the air inlet of the secondary tower, the air outlet of the secondary tower is communicated with the atmosphere, and the spray liquid inlet of the secondary spray absorption tower is connected with the spray header of the secondary tower.
In a preferred embodiment of the invention, an on-line pH meter is arranged in the spray liquid collecting tank of the primary tower, and when the pH value of the solution in the tank is less than 8, the solution is completely removed and is used as a taurine production raw material after being concentrated.
The invention has the beneficial effects that: the technical scheme includes that crystallized taurine is placed in a closed environment and dried in the air at negative pressure, sulfur dioxide molecules remaining in the middle of the molecules are naturally separated out, and the separated sulfur dioxide molecules are sprayed and absorbed by a spraying absorption tower and then are used as a preparation principle of the taurine.
Drawings
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
the parts in the drawings are numbered as follows:
1. the system comprises a coarse crystal bin, 2 primary towers, 3 secondary towers, 4 air-curing tables, 5 induced draft hoods, 6 induced draft pipelines, 7 induced draft fans, 8 communicated pipes and 9 spray liquid water inlet pipes.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
Referring to fig. 1, an embodiment of the present invention includes: a taurine crude crystal processing system, the taurine processing system comprising: the device comprises a coarse crystal bin 1, a spray absorption tower and an air induction pipeline 6 for connecting the coarse crystal bin 1 and the spray absorption tower, wherein the coarse crystal bin 1 is a closed bin body, a plurality of air-drying platforms 4 are arranged in the coarse crystal bin, an air induction cover 5 is correspondingly arranged above each air-drying platform 4, the air induction cover 5 is connected with the part of the air induction pipeline 6 extending into the coarse crystal bin 1, the part of the air induction pipeline 6 extending into the coarse crystal bin 1 is positioned right above the coarse crystal bin 1, an induced draft fan 7 is installed on the air induction pipeline 6, and the outlet of the air induction pipeline 6 is connected with the air inlet of the spray absorption tower. The inside of the coarse crystal bin 1 is provided with a barometer, and when coarse crystals are placed in the coarse crystal bin 1, the negative pressure air exhaust state in the bin needs to be maintained, so that sulfur dioxide molecules remained in the coarse crystals are fully exhausted.
The area of the cover opening of each induced air cover 5 is larger than that of the corresponding air-curing platform 4, and the distance between each induced air cover 5 and the surface of the air-curing platform 4 is 0.8-1.2 m. In this way, the possibility of scattering sulfur dioxide into the surrounding environment when escaping can be reduced.
The spraying liquid used by the spraying absorption tower is dilute ammonia water, and the concentration of the dilute ammonia water is 1-3%. The reason for using weak ammonia water is that ammonia water is easy to react with sulfur dioxide to produce ammonium sulfite used in the preparation of taurine, and if the concentration of ammonia water is too high, too much ammonia gas dissipated in the spray absorption tower influences the surrounding environment, the concentration of ammonia water is too low, the concentration of ammonium sulfite converted in the later period is low, and the concentration cost is high.
The spray absorption tower is the second grade spray absorption tower, the second grade spray absorption tower comprises one-level tower 2 and second grade tower 3, and every level tower all comprises shower head, filler and spray liquid collecting pit, set up closed tube 8 between one-level tower spray liquid collecting pit and the second grade tower spray liquid collecting pit, install the valve on the closed tube 8, all set up the circulating line between the shower head of one-level tower 2 and second grade tower 3 and the spray liquid collecting pit, the gas outlet of one-level tower 2 links to each other with the air inlet of second grade tower 3, the gas outlet and the atmosphere UNICOM of second grade tower 3, the spray liquid inlet tube 9 of second grade spray absorption tower is connected with the shower head of second grade tower 3. The content of sulfur dioxide in the gas after purifying through above-mentioned mode is extremely low, can satisfy gaseous direct emission standard, and the spray liquid of second grade tower 3 can reach the standard in one-level tower 2 solution concentration in addition, can directly get into the spray liquid collecting pit of one-level tower 2 through the UNICOM pipeline after shifting out the spray liquid collecting pit, is used as the supplementary spray liquid of one-level tower 2 to reduce the absorption liquid that sprays in the second grade tower 3 and handle the degree of difficulty when fully absorbing sulfur dioxide gas.
An online PH meter is arranged in the spray liquid collecting tank of the first-stage tower 2, when the PH value of the solution in the tank is less than 8, the solution is completely removed and is used as a taurine production raw material after being concentrated. The reason for controlling the PH value of the spray liquid collecting tank in the first-level tower 2 is that when the PH value is greater than 8, free ammonium ions in the solution are more, and when the PH value is less than 7, a considerable amount of bisulfite exists in the solution, so the control is performed between 7 and 8 at the PH value, impurity ions in the solution can be reduced, the ammonium sulfite can be directly used as taurine reaction liquid after only needing concentration and dehydration, the treatment steps are reduced, and the raw material cost is reduced.
The working principle of the invention is as follows:
after the taurine coarse crystal is placed on an airing table in a coarse crystal bin, a draught fan is started, gas containing sulfur dioxide in the coarse crystal bin 1 is continuously extracted and conveyed into a first-level tower 2, the gas is primarily absorbed by the first-level tower 2 and then enters a second-level tower 3 for secondary thorough absorption, a spraying washing liquid is continuously recycled in the first-level tower 2, when the PH value of the spraying liquid after cyclic absorption is lower than 8, it is proved that free ammonia gas does not exist in the solution, at the moment, the spraying liquid in the first-level tower 2 is shifted out and can be directly used as a production raw material of taurine after being concentrated, after the spraying liquid in the first-level tower 2 is shifted out, the spraying liquid in the second-level tower 3 is transferred into the first-level tower 2 through a communicating pipeline, and then the spraying liquid inlet pipe 9 is used for supplementing dilute ammonia water to. Through the mode, the sulfur dioxide generated by coarse crystals of the taurine in the placing process can be fully removed, and the sulfur dioxide is converted into production raw materials, so that the environmental pollution is reduced, and the raw material cost is reduced.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. A taurine crude crystal processing system, characterized in that, the taurine crude crystal processing system includes: the device comprises a coarse crystal bin, a spray absorption tower and an air inducing pipeline for connecting the coarse crystal bin and the spray absorption tower, wherein the coarse crystal bin is a closed bin body, a plurality of air-curing tables are arranged in the coarse crystal bin, an air inducing cover is correspondingly arranged above each air-curing table and is connected with the part of the air inducing pipeline extending into the coarse crystal bin, the part of the air inducing pipeline extending into the coarse crystal bin is positioned right above the coarse crystal bin, an induced draft fan is arranged on the air inducing pipeline, and an air outlet of the air inducing pipeline is connected with an air inlet of the spray absorption tower.
2. The taurine crude crystal processing system according to claim 1, wherein a barometer is installed in the crude crystal bin, and when the crude crystal is placed in the crude crystal bin, the crude crystal bin needs to be maintained in a negative pressure pumping state.
3. The taurine crude crystal processing system according to claim 1, wherein the area of the cover opening of each induced draft cover is larger than the area of the corresponding air-curing platform, and the distance between each induced draft cover and the surface of the air-curing platform is 0.8-1.2 m.
4. The taurine crude crystal processing system according to claim 1, wherein the spray solution used by the spray absorption tower is dilute ammonia water with a concentration of 1-3%.
5. The taurine coarse crystal processing system according to claim 1, wherein the spray absorption tower is a second-stage spray absorption tower, the second-stage spray absorption tower is composed of a first-stage tower and a second-stage tower, each stage tower is composed of a spray head, a filler and a spray liquid collecting tank, the spray liquid collecting tank of the first-stage tower is connected with the spray liquid collecting tank of the second-stage tower through a communicating pipe, a valve is installed on the communicating pipe, a circulating pipeline is arranged between the spray heads of the first-stage tower and the spray liquid collecting tank of the second-stage tower, the gas outlet of the first-stage tower is connected with the gas inlet of the second-stage tower, the gas outlet of the second-stage tower is communicated with the atmosphere, and the spray liquid inlet of the second-stage spray absorption tower is connected with the spray head of.
6. The taurine crude crystal processing system according to claim 5, wherein an on-line pH meter is installed in the spray liquid collecting tank of the first-stage tower, and when the pH value of the solution in the tank is less than 8, the solution is completely removed and concentrated to be used as a taurine production raw material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011286591.5A CN112742194A (en) | 2020-11-17 | 2020-11-17 | Taurine coarse crystal processing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011286591.5A CN112742194A (en) | 2020-11-17 | 2020-11-17 | Taurine coarse crystal processing system |
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| Publication Number | Publication Date |
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| CN112742194A true CN112742194A (en) | 2021-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011286591.5A Pending CN112742194A (en) | 2020-11-17 | 2020-11-17 | Taurine coarse crystal processing system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2103660A (en) * | 1981-07-01 | 1983-02-23 | Bischoff Gasreinigung | Copper-refining installation |
| CN201609633U (en) * | 2010-01-12 | 2010-10-20 | 上海洁美环保科技有限公司 | Ammonia flue gas desulfurization device of byproducts of ammonium hydrogen sulfite and ammonium sulfite |
| CN203281212U (en) * | 2012-12-26 | 2013-11-13 | 浏阳市鑫利粉末冶金有限公司 | Acid mist reclaiming system used in electrolytic process |
| CN206483316U (en) * | 2017-02-20 | 2017-09-12 | 山东丰元化学股份有限公司 | A kind of nitrogen oxides blower unit |
| US20180162806A1 (en) * | 2016-09-16 | 2018-06-14 | Vitaworks Ip, Llc | Process for producing taurine |
| CN209010152U (en) * | 2018-09-29 | 2019-06-21 | 洛阳涧光特种装备股份有限公司 | Sealing Arrangement is formed in a kind of wet-method sulfur forming device |
-
2020
- 2020-11-17 CN CN202011286591.5A patent/CN112742194A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2103660A (en) * | 1981-07-01 | 1983-02-23 | Bischoff Gasreinigung | Copper-refining installation |
| CN201609633U (en) * | 2010-01-12 | 2010-10-20 | 上海洁美环保科技有限公司 | Ammonia flue gas desulfurization device of byproducts of ammonium hydrogen sulfite and ammonium sulfite |
| CN203281212U (en) * | 2012-12-26 | 2013-11-13 | 浏阳市鑫利粉末冶金有限公司 | Acid mist reclaiming system used in electrolytic process |
| US20180162806A1 (en) * | 2016-09-16 | 2018-06-14 | Vitaworks Ip, Llc | Process for producing taurine |
| CN206483316U (en) * | 2017-02-20 | 2017-09-12 | 山东丰元化学股份有限公司 | A kind of nitrogen oxides blower unit |
| CN209010152U (en) * | 2018-09-29 | 2019-06-21 | 洛阳涧光特种装备股份有限公司 | Sealing Arrangement is formed in a kind of wet-method sulfur forming device |
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Application publication date: 20210504 |