CN207175469U - A kind of Flue Gas of Nonferrous Smelting relieving haperacidity high-temperature residual heat utilization device - Google Patents
A kind of Flue Gas of Nonferrous Smelting relieving haperacidity high-temperature residual heat utilization device Download PDFInfo
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- CN207175469U CN207175469U CN201720806044.2U CN201720806044U CN207175469U CN 207175469 U CN207175469 U CN 207175469U CN 201720806044 U CN201720806044 U CN 201720806044U CN 207175469 U CN207175469 U CN 207175469U
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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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- 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
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The utility model discloses a kind of Flue Gas of Nonferrous Smelting relieving haperacidity high-temperature residual heat utilization device, including relieving haperacidity flue gas superheater, saturated vapor bypasses and vapour steam mixer, relieving haperacidity flue gas superheater is connected between the exhanst gas outlet and I heat exchanger of one section of flue gas acid preparing conversion section, enter the flue gas exit temperature that heat exchanger reduces sulfuric acid conversion workshop section after relieving haperacidity flue gas is cooled down by saturated vapor caused by waste heat boiler in relieving haperacidity flue gas superheater, saturated vapor, which is heated to form, to be mixed by vapour steam mixer after superheated steam is collected and overheated with the saturated vapor that saturated vapor bypasses so that subordinate equipment utilizes.The heat energy of relieving haperacidity flue gas superheater absorption can be all of, does not lose, and comprehensive energy utilization ratio is high.Acid making system flue gas comes from smelting process, and thermic load fluctuation is larger, and smelting process production has periodically, it is difficult to which UTILIZATION OF VESIDUAL HEAT IN, the utility model can be applicable the demand of relieving haperacidity fume afterheat fluctuating load, produce continuous advanced potential energy.
Description
Technical field
The utility model belongs to prospect of metallurgical acid production technologies field, and in particular to a kind of Flue Gas of Nonferrous Smelting relieving haperacidity is high
Warm residual heat using device.
Background technology
Contain substantial amounts of sulfur dioxide in Flue Gas of Nonferrous Smelting, directly discharge not only waste of resource, and having to environment
Huge harm, thus increasing enterprise using flue gas during smelting come relieving haperacidity.
Flue Gas of Nonferrous Smelting acid-making process includes fume purifying processes, dry-cleaning process and conversion procedure, comes from SO2 air blowers
Cold SO2 gases, the heat come out using I heat exchanger and III one layer of catalyst of heat exchanger sorption enhanced workshop section, four layers of catalyst,
It is heated to 420 DEG C and enters one section of catalyst layer of converter, SO2 turns after first, second, third, fourth section of catalyst layer catalysis oxidation
SO3 gases are turned to, entering two through IV heat exchanger inhales tower absorption SO3 relieving haperacidity.One layer of catalyst exit gas temperature of sulfuric acid conversion workshop section
For 580 DEG C, I heat exchanger entrance flue-gas temperature is 503 DEG C, and flue-gas temperature is high at this, the 90 DEG C of gases to be come by SO2 air blowers
Cooled down, the low-grade utilization of high-grade energy.Rudimentary position spontaneous can be always changed into according to high potential in the second law of thermodynamics
Can, and rudimentary potential energy spontaneous can not possibly be changed into advanced potential energy, the reduction of energy level means to reduce, and reduces the work of high-temperature flue gas
Function power.
Utility model content
The purpose of this utility model is being changed a job Yi Zhong sulfuric acid conversions workshop section high temperature cigarette in providing one kind and can solve traditional flue gas
The device of gas high temperature Utilizing question, makes residual heat resources energy level rationally utilize, and system is not lost, and improves comprehensive utilization of energy effect
Rate.
This Flue Gas of Nonferrous Smelting relieving haperacidity high-temperature residual heat utilization device provided by the utility model, including relieving haperacidity flue gas overheat
Device, saturated vapor bypass and vapour steam mixer, the flue gas that relieving haperacidity flue gas superheater is connected to one section of flue gas acid preparing conversion section go out
Between mouth and I heat exchanger, relieving haperacidity flue gas is cooled down by saturated vapor caused by waste heat boiler in relieving haperacidity flue gas superheater
Enter the flue gas exit temperature that heat exchanger reduces sulfuric acid conversion workshop section afterwards, saturated vapor, which is heated to form after superheated steam is collected, to be passed through
Vapour steam mixer is mixed and overheated with the saturated vapor that saturated vapor bypasses so that subordinate equipment utilizes.
The relieving haperacidity flue gas superheater includes low-temperature zone and high temperature section, and the housing exterior walls both ends of low-temperature zone are connected to full
With steam inlet header and low-temperature zone outlet vapor header, the housing exterior walls both ends of high temperature section are connected to the steaming of high temperature section entrance
Vapour header and high temperature section outlet vapor header, between saturated vapor entrance header and low-temperature zone outlet vapor header, high temperature section enters
The heat exchanger tube tube panel with relieving haperacidity flue gas downstream arrangement is connected between mouth steam header and high temperature section outlet vapor header, it is low
Connected between temperature section outlet vapor header and high temperature section inlet steam header, the front end of low-temperature zone inlet steam header is connected with full
With steam steam collecting container.
The heat exchanger tube is the snakelike heat exchange tube with helical fin, the both ends of heat exchanger tube by elbow and light pipe with it is corresponding
Steam header connects.
Pass through company between the low-temperature zone outlet vapor header and high temperature section inlet steam header of the relieving haperacidity flue gas superheater
The pipeline connection of spray attemperator is connected to, spray attemperator is connected with Desuperheating water regulating valve group；
The high temperature section outlet vapor header of relieving haperacidity flue gas superheater is connected with superheated steam steam collecting container, superheated steam collection vapour
Header connects with the vapour steam mixer.
The relieving haperacidity flue gas superheater is connected with steam by-pass.
The low-temperature zone steam inlet header of the relieving haperacidity flue gas superheater, low-temperature zone outlet vapor header, temperature section entrance steam
Vapour header, high temperature section outlet vapor header and heat exchanger tube are made using 12Cr1MoVG materials.
The vapour steam mixer includes outer barrel and internal spray pipe, and outer barrel includes big footpath pipe section, path pipe section and two
There is shrouding changeover portion between pipe section, the outer end of big footpath pipe section；Internal spray pipe includes pipe section and the loudspeaker section of flaring,
Pipe section is stretched out in outside the big footpath pipe section of outer barrel and connected with the superheated steam steam collecting container, and the end of loudspeaker section is corresponding to outer
The end of the big footpath pipe section of cylinder, the big footpath pipe section of outer barrel are taken over by the saturated vapor of end You Yan great footpaths pipe section radial direction.
The material of the internal spray pipe is 15CrMoG, and its loudspeaker section side wall is evenly equipped with circular hole, and the external diameter of loudspeaker section is less than
The internal diameter of the big footpath pipe section of outer barrel.
The utility model compared with prior art, has the following advantages that：
（1）Exported in relieving haperacidity flue gas sulfuric acid conversion workshop section and high temperature superheater is set, the heat energy of absorption can be all of not having
There are loss, comprehensive energy utilization ratio height；
（2）Acid making system flue gas comes from smelting process, and thermic load fluctuation is larger, and smelting process production has periodically,
It is difficult to UTILIZATION OF VESIDUAL HEAT IN, the utility model can be applicable the demand of relieving haperacidity fume afterheat fluctuating load, produce continuous high level
Energy；
（3）The utility model can detect relieving haperacidity superheater outlet flue-gas temperature and overheat steamed by Examination system of instrument
Stripping temperature, adjustment superheater bypass valve group, the aperture of desuperheating water of superheater regulation valve group, ensures the temperature that relieving haperacidity flue gas needs
Degree, ensure the quality of flue gas acid preparing.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model one embodiment.
Fig. 2 is the amplification schematic top plan view of relieving haperacidity flue gas superheater in Fig. 1.
Fig. 3 is the mplifying structure schematic diagram of vapour steam mixer in Fig. 1.
Embodiment
As shown in figure 1, this Flue Gas of Nonferrous Smelting relieving haperacidity high-temperature residual heat utilization device disclosed in the present embodiment, including relieving haperacidity
Flue gas superheater 1, saturated vapor bypass and vapour steam mixer 3, relieving haperacidity flue gas superheater 1 are connected to flue gas acid preparing conversion section one
Between the exhanst gas outlet and I heat exchanger 4 of section.
As shown in Figure 1 and Figure 2, relieving haperacidity flue gas superheater 1 goes out including housing 11, low-temperature zone steam inlet header 12, low-temperature zone
Mouth steam header 13, high temperature section inlet steam header 14, high temperature section outlet vapor header 15 and heat exchanger tube 16.
Low-temperature zone steam inlet header 12, low-temperature zone outlet vapor header 13, high temperature section inlet steam header 14 and high temperature
Section outlet vapor header 15 is arranged vertically from the high-temperature flue gas entry end of housing 11 toward the port of export successively, saturated vapor entrance header
It is connected between low-temperature zone outlet vapor header, between high temperature section inlet steam header and high temperature section outlet vapor header
Heat exchanger tube 16.Heat exchanger tube 16 uses coiled pipe, and spiral fin is disposed with coiled pipe.Coiled pipe flows to following current with high-temperature flue gas
Arrangement, the both ends of each coiled pipe are respectively elbow and light pipe, and light pipe connects with corresponding steam header.Some heat exchanger tubes form pipe
Screen.The both ends of housing are connected to smoke inlet joint 17 and exhanst gas outlet joint 18.The He of low-temperature zone outlet vapor header 13
By being connected with the pipeline connection of spray attemperator 5 between high temperature section inlet steam header 14, the connection of spray attemperator 5 subtracts
Warm water adjusts valve group 6.Outlet steam temperature is detected by instrument, adjusts Desuperheating water regulating valve group aperture, controls superheater outlet
Vapor (steam) temperature；Relieving haperacidity fume afterheat is higher, and when the quantity of steam that waste heat boiler comes is on the low side, it can also be adjusted according to vapor (steam) temperature
Whole spray water flux, control outlet cigarette temperature.
The high temperature section outlet vapor header 15 of relieving haperacidity flue gas superheater 1 is connected with superheated steam gas collection and connects case GL, and overheat is steamed
Vapour steam collecting container connects with vapour steam mixer 3.
The saturated vapor that waste heat boiler comes enters the low temperature of relieving haperacidity cigarette device superheater after saturated vapor steam collecting container BL
In section steam inlet header 12, become superheated steam entrance after then being exchanged heat in relieving haperacidity flue gas superheater with high-temperature flue gas
Superheated steam steam collecting container.
Relieving haperacidity flue gas superheater 1 is also associated with saturated vapor bypass and connected with vapour steam mixer, connects in saturated vapor bypass
It is connected to regulation valve group.According to sulfuric acid conversion workshop section residual heat resources situation of change, the aperture of adjustment saturated vapor bypass, so as to ensure
Relieving haperacidity flue gas superheater outlet cigarette temperature meets the requirement of sulfuric acid conversion workshop section.
As shown in figure 3, vapour steam mixer 3 includes outer barrel 31 and internal spray pipe 32, outer barrel 31 includes big footpath pipe section, small
There is shrouding changeover portion between footpath pipe section and two pipe sections, the outer end of big footpath pipe section；Internal spray pipe 32 includes pipe section
With the loudspeaker section of flaring, the big footpath pipe section that pipe section stretches out in outer barrel 31 is externally connected with flange 33, joins with superheated steam collection vapour
Case GL outlet connection, the end of loudspeaker section correspond to the end of the big footpath pipe section of outer barrel 31, the big footpath pipe section of outer barrel 31
Taken over by the saturated vapor of end You Yan great footpaths pipe section radial direction.There is drain port 34 on the downside of outer barrel.Internal spray pipe 32
The uniform steam jetting hole of loudspeaker section side wall（It is not drawn into figure）, the external diameter of loudspeaker section is less than the internal diameter of the big footpath pipe section of outer barrel, makes
Expansion clearance is formed between outer barrel 31 and internal spray pipe 32, last mixed vapour is sent into steamer from the path pipe section of outer barrel
Machine, steam turbine work is set to drive generator operation to generate electricity.
Concrete operating principle of the present utility model is as follows
1）The exhaust gas volumn that nonferrous smelting is used for relieving haperacidity is bigger, when waste heat heat ratio is higher, saturation that waste heat boiler comes
Steam fully enters relieving haperacidity flue gas superheater, and blind controller system detection superheater outlet vapor (steam) temperature, vapor (steam) temperature is higher than finger
Fixed number value, attemperator Desuperheating water regulating valve group is opened, relieving haperacidity flue gas superheater low-temperature zone outlet steam temperature is reduced, so as to control
Superheater outlet vapor (steam) temperature, and then control superheater outlet cigarette temperature；
2）Nonferrous smelting relieving haperacidity exhaust gas volumn is relatively low, when waste heat heat is reduced, blind controller system detection overheat exiting flue gas
Temperature, temperature is relatively low, adjusts the aperture of relieving haperacidity flue gas superheater bypass valve group, reduces superheater saturated vapor throttle flow,
Excess steam bypasses 2 through superheater, into vapour steam mixer 3；
3）The uniform aperture of pipe of the superheated steam that relieving haperacidity flue gas superheater 1 comes out through the setting of the inside of vapour steam mixer 3
Eject, mixed with the saturated vapor entered from the top of vapour steam mixer 3, and overheat saturated vapor, make mixed overheat
Steam generates electricity into Turbo-generator Set.
The present invention can transform in nonferrous smelting original flue gas acid preparing system, be set up in the one layer of catalyst outlet of sulfuric acid conversion workshop section
Relieving haperacidity flue gas superheater, and do not influence former flue gas acid preparing system normal operation, after transformation, very big land productivity completely in transformation process
With relieving haperacidity fume afterheat, compared to other heat exchange modes, do not lose, the high-temperature flue gas heat of absorption can be all of section
Energy emission reduction is obvious, remarkable in economical benefits.
Claims (9)
- A kind of 1. Flue Gas of Nonferrous Smelting relieving haperacidity high-temperature residual heat utilization device, it is characterised in that：The device overheats including relieving haperacidity flue gas Device, saturated vapor bypass and vapour steam mixer, the flue gas that relieving haperacidity flue gas superheater is connected to one section of flue gas acid preparing conversion section go out Between mouth and I heat exchanger, relieving haperacidity flue gas is cooled down by saturated vapor caused by waste heat boiler in relieving haperacidity flue gas superheater Enter the flue gas exit temperature that heat exchanger reduces sulfuric acid conversion workshop section afterwards, saturated vapor, which is heated to form after superheated steam is collected, to be passed through Vapour steam mixer is mixed and overheated with the saturated vapor that saturated vapor bypasses so that subordinate equipment utilizes.
- 2. Flue Gas of Nonferrous Smelting relieving haperacidity high-temperature residual heat utilization device as claimed in claim 1, it is characterised in that：The relieving haperacidity cigarette Gas superheater includes low-temperature zone and high temperature section, and the housing exterior walls both ends of low-temperature zone are connected to saturated vapor entrance header and low Temperature section outlet vapor header, the housing exterior walls both ends of high temperature section are connected to high temperature section inlet steam header and high temperature section outlet Steam header, between saturated vapor entrance header and low-temperature zone outlet vapor header, high temperature section inlet steam header and high temperature section Be connected between outlet vapor header with relieving haperacidity flue gas downstream arrangement heat exchanger tube tube panel, low-temperature zone outlet vapor header and Connected between high temperature section inlet steam header, the front end of low-temperature zone inlet steam header is connected with saturated vapor steam collecting container.
- 3. Flue Gas of Nonferrous Smelting relieving haperacidity high-temperature residual heat utilization device as claimed in claim 2, it is characterised in that：The heat exchanger tube For the snakelike heat exchange tube with helical fin, the both ends of heat exchanger tube are connected by elbow and light pipe with corresponding steam header.
- 4. Flue Gas of Nonferrous Smelting relieving haperacidity high-temperature residual heat utilization device as claimed in claim 2, it is characterised in that：The relieving haperacidity cigarette By being connected with spray attemperator between the low-temperature zone outlet vapor header and high temperature section inlet steam header of gas superheater Pipeline connection, spray attemperator are connected with Desuperheating water regulating valve group.
- 5. Flue Gas of Nonferrous Smelting relieving haperacidity high-temperature residual heat utilization device as claimed in claim 2, it is characterised in that：Relieving haperacidity flue gas mistake The high temperature section outlet vapor header of hot device is connected with superheated steam steam collecting container, and superheated steam steam collecting container mixes with the vapour vapour Device connects.
- 6. Flue Gas of Nonferrous Smelting relieving haperacidity high-temperature residual heat utilization device as claimed in claim 1, it is characterised in that：The relieving haperacidity cigarette Gas superheater is connected with steam by-pass.
- 7. Flue Gas of Nonferrous Smelting relieving haperacidity high-temperature residual heat utilization device as claimed in claim 2, it is characterised in that：The relieving haperacidity cigarette The low-temperature zone steam inlet header of gas superheater, low-temperature zone outlet vapor header, high temperature section inlet steam header, high temperature section outlet Steam header and heat exchanger tube are made using 12Cr1MoVG materials.
- 8. Flue Gas of Nonferrous Smelting relieving haperacidity high-temperature residual heat utilization device as claimed in claim 5, it is characterised in that：The vapour vapour mixes Clutch includes outer barrel and internal spray pipe, and outer barrel includes the changeover portion between big footpath pipe section, path pipe section and two pipe sections, There is shrouding the outer end of big footpath pipe section；Internal spray pipe includes pipe section and the loudspeaker section of flaring, and pipe section stretches out in outer barrel Big footpath pipe section is outer to be connected with the superheated steam steam collecting container, and the end of loudspeaker section corresponds to the end of the big footpath pipe section of outer barrel End, the big footpath pipe section of outer barrel are taken over by the saturated vapor of end You Yan great footpaths pipe section radial direction.
- 9. Flue Gas of Nonferrous Smelting relieving haperacidity high-temperature residual heat utilization device as claimed in claim 8, it is characterised in that：The internal spray The material for penetrating pipe is 15CrMoG, and its loudspeaker section side wall is evenly equipped with circular hole, and the external diameter of loudspeaker section is less than the interior of the big footpath pipe section of outer barrel Footpath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720806044.2U CN207175469U (en) | 2017-07-05 | 2017-07-05 | A kind of Flue Gas of Nonferrous Smelting relieving haperacidity high-temperature residual heat utilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720806044.2U CN207175469U (en) | 2017-07-05 | 2017-07-05 | A kind of Flue Gas of Nonferrous Smelting relieving haperacidity high-temperature residual heat utilization device |
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| Publication Number | Publication Date |
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| CN207175469U true CN207175469U (en) | 2018-04-03 |
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| CN201720806044.2U Active CN207175469U (en) | 2017-07-05 | 2017-07-05 | A kind of Flue Gas of Nonferrous Smelting relieving haperacidity high-temperature residual heat utilization device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109704294A (en) * | 2019-03-08 | 2019-05-03 | 长沙有色冶金设计研究院有限公司 | The method of the highly concentrated conversion system heat cascade utilization of sulfuric acid |
| CN110715558A (en) * | 2019-09-29 | 2020-01-21 | 天津天钢联合特钢有限公司 | Sintering mixing homogenizing heating method and system |
| CN111097284A (en) * | 2018-10-29 | 2020-05-05 | 中国石油化工股份有限公司 | Method for heating flue gas entering denitration system by using heat of conversion section |
-
2017
- 2017-07-05 CN CN201720806044.2U patent/CN207175469U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111097284A (en) * | 2018-10-29 | 2020-05-05 | 中国石油化工股份有限公司 | Method for heating flue gas entering denitration system by using heat of conversion section |
| CN111097284B (en) * | 2018-10-29 | 2022-03-08 | 中国石油化工股份有限公司 | Method for heating flue gas entering denitration system by using heat of conversion section |
| CN109704294A (en) * | 2019-03-08 | 2019-05-03 | 长沙有色冶金设计研究院有限公司 | The method of the highly concentrated conversion system heat cascade utilization of sulfuric acid |
| CN110715558A (en) * | 2019-09-29 | 2020-01-21 | 天津天钢联合特钢有限公司 | Sintering mixing homogenizing heating method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190819 Address after: 410019 Qingxi Chuanjiu Office Building and 113 Comprehensive Building, 299 Mulian East Road, Yuhua District, Changsha City, Hunan Province Patentee after: China Aluminum Environmental Protection and Energy Saving Technology (Hunan) Co., Ltd. Address before: 410019 Hunan province Changsha Yuhua District, Magnolia Road No. 299 Patentee before: Changsha Engineering & Research Institute of Nonferrous Metallurgy Co., Ltd. |
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| TR01 | Transfer of patent right |