CN114225447A - Nitrogen heat-carrying sulfur vaporization device and process thereof - Google Patents
Nitrogen heat-carrying sulfur vaporization device and process thereof Download PDFInfo
- Publication number
- CN114225447A CN114225447A CN202111556105.1A CN202111556105A CN114225447A CN 114225447 A CN114225447 A CN 114225447A CN 202111556105 A CN202111556105 A CN 202111556105A CN 114225447 A CN114225447 A CN 114225447A
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- Prior art keywords
- nitrogen
- sulfur
- gas
- heat
- temperature
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 116
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 50
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 43
- 239000011593 sulfur Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000008016 vaporization Effects 0.000 title claims description 31
- 238000009834 vaporization Methods 0.000 title claims description 14
- 239000007789 gas Substances 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 18
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000005864 Sulphur Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 239000003546 flue gas Substances 0.000 claims description 4
- 239000003345 natural gas Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 239000002737 fuel gas Substances 0.000 claims description 2
- 238000002309 gasification Methods 0.000 abstract description 9
- 239000010808 liquid waste Substances 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 abstract description 2
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/14—Production of inert gas mixtures; Use of inert gases in general
-
- 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
- C01B17/0226—Vaporising or superheating
-
- 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
- C01B17/0232—Purification, e.g. degassing
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a device for carrying heat of sulfur by nitrogen and a process thereof, comprising a gasification furnace, a nitrogen balance tank, a heat exchanger and a gas hot blast stove, wherein the gasification furnace is used for heating and gasifying liquid waste sulfur, a carrier for heat exchange in the gasification furnace is nitrogen, a high-temperature nitrogen inlet and a low-temperature nitrogen outlet are arranged on a furnace body of the gasification furnace, the low-temperature nitrogen outlet is communicated with the balance tank, the balance tank is connected with a fan, the nitrogen in the balance tank enters the heat exchanger through a circulating fan to be heated into high-temperature nitrogen which enters the gasification furnace as a heat exchange carrier, the gas hot blast stove is arranged outside the heat exchanger, the gas hot blast stove is connected with the heat exchanger through a hot blast outlet pipe, and high-temperature smoke in the hot blast outlet pipe heats the nitrogen blown in by the circulating fan. The sulfur paste is evaporated under reduced pressure to extract sulfur, so that the evaporation temperature of the sulfur is effectively reduced, the safety is high, the energy consumption is reduced, and the service life of equipment is effectively prolonged.
Description
Technical Field
The invention relates to a nitrogen heat-carrying sulfur vaporization device and a process thereof.
Background
The sulfur paste purification method is various, wherein the most stable and reliable method is to heat the sulfur paste into liquid state, then carry out distillation, vaporization and condensation to obtain a sulfur product with stable quality.
In the process of distilling the sulfur, the sulfur is directly heated, for example, coal gas, natural gas or electricity is used as a heat source, and the temperature of the kettle wall is often overheated due to poor heat conductivity of the sulfur, so that the performances such as strength, corrosion resistance and the like of equipment are poor, the service life of the equipment is short, and the equipment is corroded and penetrated generally within 6 months. In addition, because the equipment is vulcanized, the welding repair is easy to embrittle and crack, the repair value is not high, the rejection frequency is high, and the operation cost is high;
if an indirect heating mode is selected, the temperature resistance of the commonly used heat conducting oil is generally below 350 ℃, and the vaporization boiling point of the vulcanization is 444.6 ℃, which cannot be met; the method is characterized in that molten salt is selected, the temperature can reach more than 400 ℃, but the molten salt is owner nitrate, sulfur contains organic matters such as tar and the like, carbon is separated out through high-temperature carbonization, sulfur, carbon and nitrate belong to explosives at high temperature, and once the molten salt leaks into the sulfur, the carbon and the nitrate are very dangerous; if superheated steam is used, high-pressure steam is required, and the safety requirement of the equipment is extremely high.
Disclosure of Invention
The invention aims to provide a nitrogen heat-carrying sulfur vaporization device and a process thereof, and aims to solve the problems in the background technology.
The invention discloses a sulfur paste reduced pressure vaporization extraction sulfur device, which comprises a vaporizing furnace, a nitrogen balance tank, a heat exchanger and a gas hot blast stove, wherein the vaporizing furnace is used for heating and vaporizing liquid waste sulfur, a carrier for heat exchange in the vaporizing furnace is nitrogen, a high-temperature nitrogen inlet and a low-temperature nitrogen outlet are arranged on a furnace body of the vaporizing furnace, the low-temperature nitrogen outlet is communicated with the balance tank, the balance tank is connected with a fan, the nitrogen in the balance tank enters the heat exchanger through a circulating fan to be heated into high-temperature nitrogen which enters the vaporizing furnace as a heat exchange carrier, the gas hot blast stove is arranged outside the heat exchanger, the gas hot blast stove is connected with the heat exchanger through a hot blast outlet pipe, and high-temperature smoke in the hot blast outlet pipe heats the nitrogen blown in by the circulating fan.
Preferably, a plurality of rows of finned heat exchange tubes which are symmetrically arranged are arranged in the gasification furnace.
The invention also aims to provide a method for extracting sulfur by vaporizing sulfur paste, which applies the nitrogen heat-carrying sulfur vaporizing device, and firstly heats nitrogen to the required temperature by using fuel gas, natural gas or electricity; sending high-temperature nitrogen into a heat exchanger through a fan, carrying out heat exchange with sulfur, and distilling and vaporizing the sulfur; the temperature-reduced nitrogen after the heat is absorbed returns to the nitrogen balancing tank; and (4) sending the nitrogen in the balance tank to be heated through a fan, and repeatedly circulating to realize normal operation of production.
Compared with the prior art, the invention has the advantages that: the heated nitrogen is used as a heat carrier, so that the energy consumption is reduced, the service life of equipment is prolonged, and the safety is higher.
The gasification furnace adopting the structure of the invention has high safety, does not cause the danger of combustion or explosion of sulfur, has cheap and easily obtained heat carrier and stable operation.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
Example one
The utility model provides a nitrogen gas carries hot heat vaporization sulphur device, see figure 1, including the gasifier, nitrogen gas balance tank, a heat exchanger, gas hot-blast furnace, the gasifier is used for the heating vaporization of liquid useless sulphur, the carrier of heat exchange in the gasifier is nitrogen gas, set up high temperature nitrogen gas entry and low temperature nitrogen gas export on the gasifier furnace body, low temperature nitrogen gas export intercommunication balance tank, the fan is connected to the balance tank, nitrogen gas in the balance tank gets into the heat exchanger through circulating fan and heats into high temperature nitrogen gas, gets into in the gasifier as the heat exchange carrier, be provided with the gas hot-blast furnace outside the heat exchanger, be connected through hot-blast exit tube between gas hot-blast furnace and the heat exchanger, the high temperature flue gas heating in the hot-blast exit tube is through the nitrogen gas that circulating fan blowed in.
The gasification furnace of the embodiment is internally provided with a plurality of rows of finned heat exchange tubes which are symmetrically arranged.
In the embodiment, a gas hot blast stove is used for heating nitrogen to the required temperature;
sending high-temperature nitrogen into a heat exchanger through a fan, carrying out heat exchange with sulfur, and distilling and vaporizing the sulfur;
the temperature-reduced nitrogen after the heat is absorbed returns to a nitrogen transfer balancing tank which is also connected with a nitrogen source;
and (4) sending the nitrogen in the balance tank to be heated through a fan, and repeatedly circulating to realize normal operation of production.
The gasification furnace adopting the structure of the invention has high safety, does not cause the danger of combustion or explosion of sulfur, has cheap and easily obtained heat carrier and stable operation.
Example two
A method for extracting sulfur by vaporizing sulfur paste applies the nitrogen heat-carrying sulfur vaporizing device, and firstly, gas, natural gas or electricity is used for heating nitrogen to the required temperature; sending high-temperature nitrogen into a heat exchanger through a fan, carrying out heat exchange with sulfur, and distilling and vaporizing the sulfur; the temperature-reduced nitrogen after the heat is absorbed returns to the nitrogen balancing tank; the nitrogen in the balance tank is sent to be heated by a fan and is repeatedly circulated to realize normal operation of production, liquid waste sulfur enters a sulfur vaporization furnace, is heated and vaporized by the nitrogen heated to 650 ℃ by flue gas, enters a sulfur condenser from the top of the vaporization furnace for purification, nitrogen subjected to heat exchange is transferred to the balance tank at 445 ℃, the flue gas at 950 ℃ is discharged from a hot air outlet of a gas hot blast stove, and is recycled to a waste heat boiler at 650 ℃ after being subjected to heat exchange with the nitrogen.
The above description is only a preferred 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, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (3)
1. The utility model provides a nitrogen gas carries heat vaporization sulphur device, a serial communication port, including the gasifier, nitrogen gas balance tank, a heat exchanger, gas hot-blast furnace, the gasifier is used for the heating vaporization of liquid useless sulphur, the carrier of heat exchange in the gasifier is nitrogen gas, set up high temperature nitrogen gas entry and low temperature nitrogen gas export on the gasifier furnace body, low temperature nitrogen gas export intercommunication balance tank, the fan is connected to the balance tank, nitrogen gas in the balance tank gets into the heat exchanger through circulating fan and heats into high temperature nitrogen gas, get into in the gasifier as the heat exchange carrier, the heat exchanger is provided with the gas hot-blast furnace outward, be connected through hot-blast exit tube between gas hot-blast furnace and the heat exchanger, the high temperature flue gas heating in the hot-blast exit tube is through the nitrogen gas that circulating fan blowed in.
2. A nitrogen heat carrying vaporizing sulfur device as claimed in claim 1, wherein multiple rows of finned heat exchange tubes are symmetrically arranged in the vaporizing furnace.
3. A process for vaporizing sulfur by nitrogen heat transfer, which adopts the device as claimed in any one of claims 1-2 to extract sulfur by vaporization, and is characterized by comprising the following steps: firstly, heating nitrogen to a required temperature by using fuel gas, natural gas or electricity; sending high-temperature nitrogen into a heat exchanger through a fan, carrying out heat exchange with sulfur, and distilling and vaporizing the sulfur; the temperature-reduced nitrogen after the heat is absorbed returns to the nitrogen balancing tank; and (4) sending the nitrogen in the balance tank to heat through a fan, and repeatedly circulating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111556105.1A CN114225447A (en) | 2021-12-17 | 2021-12-17 | Nitrogen heat-carrying sulfur vaporization device and process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111556105.1A CN114225447A (en) | 2021-12-17 | 2021-12-17 | Nitrogen heat-carrying sulfur vaporization device and process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114225447A true CN114225447A (en) | 2022-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111556105.1A Pending CN114225447A (en) | 2021-12-17 | 2021-12-17 | Nitrogen heat-carrying sulfur vaporization device and process thereof |
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| Country | Link |
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| CN (1) | CN114225447A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114870425A (en) * | 2022-05-25 | 2022-08-09 | 北京民利储能技术有限公司 | Desublimation purification system for desulfurization sulfur paste and operation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696155A (en) * | 2009-09-23 | 2010-04-21 | 如皋市双马化工有限公司 | Glycerol blackfoot distilling process and glycerol blackfoot distilling still for implementing same |
| CN203959820U (en) * | 2014-07-07 | 2014-11-26 | 山东润银生物化工股份有限公司 | A kind of new liquid sulphur purification still kettle with temperature transmitter thermopair |
-
2021
- 2021-12-17 CN CN202111556105.1A patent/CN114225447A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696155A (en) * | 2009-09-23 | 2010-04-21 | 如皋市双马化工有限公司 | Glycerol blackfoot distilling process and glycerol blackfoot distilling still for implementing same |
| CN203959820U (en) * | 2014-07-07 | 2014-11-26 | 山东润银生物化工股份有限公司 | A kind of new liquid sulphur purification still kettle with temperature transmitter thermopair |
Non-Patent Citations (1)
| Title |
|---|
| 郭永学, 中国医药科技出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114870425A (en) * | 2022-05-25 | 2022-08-09 | 北京民利储能技术有限公司 | Desublimation purification system for desulfurization sulfur paste and operation method thereof |
| CN114870425B (en) * | 2022-05-25 | 2023-11-21 | 北京民利储能技术有限公司 | De-sublimation purification system for desulfurization sulfur paste and operation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20221012 Address after: 417000 Louxing District, Loudi City, Hunan Province (No. 1, Zhenxing Avenue, Hongjiazhou, Lianyungang) Applicant after: Loudi LIANGANG Zhenxing Metallurgical Material Co.,Ltd. Applicant after: Hunan Daoan Environmental Protection Technology Co.,Ltd. Address before: 410000 room 910, Shuangta International Plaza, No. 258, Section 2, Xiangfu East Road, Jingwanzi street, Yuhua District, Changsha City, Hunan Province Applicant before: Hunan Daoan Environmental Protection Technology Co.,Ltd. |
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Application publication date: 20220325 |