CN208455024U - Fused salt purification device - Google Patents
Fused salt purification device Download PDFInfo
- Publication number
- CN208455024U CN208455024U CN201820919780.3U CN201820919780U CN208455024U CN 208455024 U CN208455024 U CN 208455024U CN 201820919780 U CN201820919780 U CN 201820919780U CN 208455024 U CN208455024 U CN 208455024U
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- CN
- China
- Prior art keywords
- fused salt
- heating
- container
- purification device
- outlet
- Prior art date
- 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.)
- Expired - Fee Related
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- 150000003839 salts Chemical class 0.000 title claims abstract description 83
- 238000000746 purification Methods 0.000 title claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 55
- 230000008676 import Effects 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 abstract description 5
- 229910000976 Electrical steel Inorganic materials 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 24
- 239000010959 steel Substances 0.000 description 24
- 238000000137 annealing Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 12
- 238000002485 combustion reaction Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000005097 cold rolling Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910001315 Tool steel Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005307 ferromagnetism Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000004093 laser heating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- -1 oxidisability Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 238000003828 vacuum filtration Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The utility model discloses a kind of fused salt purification devices, including container, the purification device further includes the vacuum plant for being vacuumized to container inside, the import of the container is connect by introducing pipe with the fused salt export mouth of heating furnace, and the outlet of container heats piping connection by discharge pipe and fused salt.By the processing of the present apparatus, the readily volatilized substance of major part in fused salt is cleaned, and keeps the non-oxidizable of fused salt, when being heated electrical steel strip, do not aoxidize substantially.
Description
Technical field
The utility model belongs to the heat treatment auxiliary purification techniques field of metallurgy industry product, and in particular to a kind of fused salt is net
Makeup is set.
Background technique
Modern cold rolling electric production is annealed.Existing annealing is completed using continuous annealing furnace, general annealing
It is directly heating using fuel gas buring, is then heated again with completely isolated radiant tube.Cold rolling electric continuous annealing furnace is used
Protective gas (nitrogen hydrogen mixeding gas) prevents surface oxidation, internal oxidition and the interior hair for nitrogenizing phenomenon under (reduction) hot conditions
It is raw, improve cold rolling electric performance.The protective gas maintenance positive pressure outer gas of prevention furnace enters in furnace.
The heating speed of cold rolling electric continuous annealing has a significant impact the performance of final products, and heating speed height can be with
Improve properties of product.Furthermore degree of oxidation similarly has a significant impact properties of product, this point on high grade electric steel especially
It is prominent.
Nippon patent CN200880011115.3- " with curie point steel band continuous annealing method and
Continuous annealing apparatus " when with the heat treatment of the tools of the manufactures such as high-speed steel or mold (bulk), in order to guarantee the uniform of heating
(preventing, Reducing distortion), prevent oxidation and quickly, using salt bath heating.Since the workpiece of this heat treatment process is small, salt bath furnace
It is small in size, salt is static.Meanwhile for the dissolution of carbide in steel, heating time is long.Due to the heat treatment temperature of workpiece
Relatively high, the fusing point of same salt bath is also high.
During steel band laser heating, the temperature of steel band is related with furnace temp and the speed of service (time).Therefore steel
The impacted factor of the temperature of band is more, and fluctuation is big, and state of oxidation control is relatively difficult.
Heated at high speed in electrical sheet heat treatment process can be improved magnetic property, but since there are curie point (ferromagnetism for steel
Disappearance temperature), when improving steel band heating temperature using induction heating, the efficiency of the above induction heating of Curie-point temperature significantly drops
Low, heating speed receives restriction.And the heating speed of other methods is difficult to improve, and needs new heated at high speed method.
The salt bath heating of tool steel is carried out for small workpiece, does not adapt to (fusing point, oxidation for steel tape heating
Property, heating time, mobility etc.).The fluidized-bed of tool steel heats, and it is electric heating that is utilized, which is conductive powder,.
Electrical steel strip is annealed in continuous annealing furnace, due to enter annealing furnace before electrician's steel surface be cleaned (alkali cleaning and
Washing) and being carried out continuously for annealing, production line equipped with loop (i.e. steel band before entering annealing furnace by with air for a long time
Contact) to realize the continuous of annealing process.Therefore, into electrician's steel surface of annealing furnace there are moisture, these moisture are encountering
Enter in fused salt after fused salt, consequence is prolonged moisture accumulation, and some substances of belt steel surface cause the pollution of fused salt, is changed
The property of fused salt, such as: oxidisability, thermal capacitance.Colleague also influences fused salt to the heating effect of electrical sheet, in order to avoid such existing
A kind of device that can remove the moisture after heating fused salt is badly in need of in the generation of elephant.
Summary of the invention
The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model mentions
For a kind of fused salt purification device, it is therefore an objective to convenient for removing the volatile substances such as the moisture in fused salt.
To achieve the goals above, the technical solution that the utility model is taken are as follows:
A kind of fused salt purification device, including container, the purification device further include for vacuumizing to container inside
Vacuum plant, the import of the container connect by introducing pipe with the fused salt export mouth of heating furnace, and the outlet of container passes through
Discharge pipe and fused salt heat piping connection.
The introducing pipe is tangent with chamber wall.
The introducing pipe is connected with chamber wall inclination, and tilt angle is 0-5 °.
The outlet of the fused salt heating pipeline and the fused salt introducing port of heating furnace connect.
The input end of the fused salt heating pipeline is successively arranged fused salt preheater, for pre- to preheater to outlet extreme direction
Combustion heater that fused salt after heat is heated and the electricity further heated for the fused salt after heating to combustion heater add
Hot device.
Fused salt after being preheated preheater by pump for liquid salts imports molten salt heater group and heats, and conveys later from fused salt
The outlet of pipeline imports the import of heating furnace.
The utility model has the beneficial effects that by the processing of the present apparatus, the readily volatilized substance quilt of major part in fused salt
Cleaning, keeps the non-oxidizable of fused salt, when being heated electrical steel strip, do not aoxidize substantially.
Detailed description of the invention
This specification includes the following drawings, and shown content is respectively:
Fig. 1 is the bottom view of the utility model；
Fig. 2 is the side view of the utility model；
Fig. 3 is the structural schematic diagram of annealed wire circulation salt bath heating.
In the figure, it is marked as
1, steel band, 2, heating furnace, 3, soaking pit, 4, preheater, 5, pump for liquid salts, 6, combustion heater, 7, electric heater, 8,
Nozzle, 9, introducing pipe, 10, container, 11, outlet, 12, vacuum tube, 13, vacuum plant.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to specific embodiment of the present utility model further detailed
Thin explanation, it is therefore an objective to help those skilled in the art to the design of the utility model, technical solution have it is more complete, accurate and
Deep understanding, and facilitate its implementation.
As shown in Figure 1 to Figure 3, a kind of fused salt purification device, including container 10, the purification device further include for container
The vacuum plant 13 vacuumized inside 10, the import of container 10 are connected by introducing the fused salt export mouth of pipe 9 and heating furnace 2
It connects, the outlet 11 of container 10 heats piping connection by discharge pipe and fused salt.
Using above-mentioned purification device, the fused salt after steel band is heated in electrical steel continuous annealing furnace, is discharged into appearance by introducing pipe 9
In device 10, under conditions of vacuum is kept, the readily volatilized substance such as moisture in fused salt is discharged, and keeps arranging from fused salt outlet
The degree of purity of fused salt out.Vacuum interface tube on container 10 is connected to vacuum equipment by vacuum tube 12.Pass through vacuum purification
Fused salt afterwards is discharged from outlet.After the heating of fused salt heating circulation system, it is sent into heating stove heating steel band.Vacuum
Device can be realized using existing vacuum equipment, such as vacuum filtration machine etc..Filtering knot is preferably provided in the outlet of container
Structure avoids fused salt from exporting by vacuum tube.
Preferably, it introduces pipe 9 and chamber wall is tangent.It is connected alternatively, introducing pipe with chamber wall inclination, tilt angle 0-
5°.It falls the fused salt into container slowly in chamber wall rotation, then, increases the time of fused salt exposure in a vacuum, mention
The degree of purity of high fused salt.
Fused salt for the ease of purifying above-mentioned fused salt purification device imports heating furnace again after heating and uses, and will melt
Salt heats the outlet of pipeline and the fused salt introducing port of heating furnace connects.Fused salt heat pipeline input end to export extreme direction successively
Equipped with fused salt preheater 4, the combustion heater 6 for being heated to the fused salt after the preheating of preheater 4 and for adding to combustion gas
The electric heater 7 that fused salt after hot device heating further heats.Fused salt after being preheated preheater by pump for liquid salts 5 imports fused salt
Heater group is heated, and imports the import of heating furnace from the outlet of fused salt transfer pipeline later.Preferably, pump for liquid salts is set to pre-
On conveyance conduit between hot device and combustion heater.
Specifically, the fused salt in heating furnace 2, by the preheating of preheater 4, (exhaust gas being discharged using heating furnace, is passed through
Heat exchanger heats the fused salt for flowing through heat exchanger for the first time, improves efficiency of energy utilization, and heating temperature is relatively low) after, quilt
Pump for liquid salts 5 is sent to the heating of combustion heater 6 (can be fired in heat exchanger using coal gas, natural gas as combustion medium
It burns, the process that fused salt passes through from heat exchanger external circuit carries out indirect heating by heat transfer, and heating temperature is needed close to technique
The temperature wanted), pass through directly heating for electric heater 7 again later, temperature of molten salt is accurately increased to the annealing of electrical sheet strip
Technological temperature is pipelined to nozzle 8, is ejected on steel band, guarantees accurately to reach technique when steel band is exported from heating furnace
Temperature accelerates the reverse flow of Steel In Reheating Furnace band and fused salt, promotes steel band preheating in heating furnace and heating effect.Fused salt
By reverse flow to steel band entrance.Steel band is heated in the process of running, and fused salt is cooled.Cold fused salt enters from steel band again
The fused salt outlet of mouth end setting is admitted to preheater, recycles above-mentioned heating process, completes the heat cycles of fused salt, realizes continuous band
The continuous quick heating of steel.
The utility model is exemplarily described in conjunction with attached drawing above.Obviously, the utility model implements not
It is limited by aforesaid way.As long as the various unsubstantialities that the method concept and technical solution that use the utility model carry out
Improvement；Or it is not improved, the above-mentioned conception and technical scheme of the utility model are directly applied into other occasions, at this
Within the protection scope of utility model.
Claims (4)
1. a kind of fused salt purification device, including container, which is characterized in that the purification device further include for container inside into
The vacuum plant that row vacuumizes, the import of the container are connect by introducing pipe with the fused salt export mouth of heating furnace, the row of container
Outlet piping connection is heated by discharge pipe and fused salt.
2. fused salt purification device according to claim 1, which is characterized in that the introducing pipe is tangent with chamber wall.
3. fused salt purification device according to claim 1, which is characterized in that the introducing pipe is connected with chamber wall inclination, is inclined
Rake angle is 0-5 °.
4. fused salt purification device according to claim 1, which is characterized in that the outlet of the fused salt heating pipeline and heating furnace
Fused salt introducing port connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820919780.3U CN208455024U (en) | 2018-06-14 | 2018-06-14 | Fused salt purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820919780.3U CN208455024U (en) | 2018-06-14 | 2018-06-14 | Fused salt purification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208455024U true CN208455024U (en) | 2019-02-01 |
Family
ID=65159969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820919780.3U Expired - Fee Related CN208455024U (en) | 2018-06-14 | 2018-06-14 | Fused salt purification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208455024U (en) |
-
2018
- 2018-06-14 CN CN201820919780.3U patent/CN208455024U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190201 |