CN113758280A - Tin heating and heat preservation method - Google Patents
Tin heating and heat preservation method Download PDFInfo
- Publication number
- CN113758280A CN113758280A CN202111072046.0A CN202111072046A CN113758280A CN 113758280 A CN113758280 A CN 113758280A CN 202111072046 A CN202111072046 A CN 202111072046A CN 113758280 A CN113758280 A CN 113758280A
- Authority
- CN
- China
- Prior art keywords
- tin
- heating
- heat
- electric heating
- temperature
- 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.)
- Granted
Links
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 118
- 238000010438 heat treatment Methods 0.000 title claims abstract description 58
- 238000004321 preservation Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000005485 electric heating Methods 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 40
- 239000011449 brick Substances 0.000 claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000003723 Smelting Methods 0.000 claims abstract description 16
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 15
- 239000011819 refractory material Substances 0.000 claims abstract description 10
- 238000002844 melting Methods 0.000 claims abstract description 9
- 230000008018 melting Effects 0.000 claims abstract description 9
- 239000010445 mica Substances 0.000 claims description 6
- 229910052618 mica group Inorganic materials 0.000 claims description 6
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009991 scouring Methods 0.000 abstract description 5
- 239000002184 metal Substances 0.000 description 5
- 230000003628 erosive effect Effects 0.000 description 4
- 230000005494 condensation Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 239000004927 clay Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/0043—Floors, hearths
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
- F27D1/045—Bricks for lining cylindrical bodies, e.g. skids, tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/02—Ohmic resistance heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0003—Monitoring the temperature or a characteristic of the charge and using it as a controlling value
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
A tin heating and heat preservation method comprises the steps that a heating and heat preservation device is arranged, the device comprises a foundation (1) poured by concrete, a refractory material body (2) which is built on the foundation and is provided with a pit in the middle, an electric heating device (3) embedded in the inner wall of the pit of the refractory material body, a pot body (4) which is placed in the electric heating device and is welded with an annular pot edge (5) at a pot opening, and a carbon brick layer (6) embedded in the inner wall of the pot body, wherein the electric heating device (3) is connected with a temperature controller (7); and then heating and preserving heat of the molten tin smelted by the tin reduction smelting furnace by using the heating and preserving device, or melting and preserving heat of a tin ingot by using the heating and preserving device. The invention can be used for heating and heat preservation of tin liquid and melting and heat preservation of tin ingots, can resist high-temperature tin liquid scouring, greatly prolongs the service life of equipment and reduces the production cost.
Description
Technical Field
The invention relates to the technical field of non-ferrous metal smelting, in particular to a heating and heat-preserving method for metallic tin.
Background
When the metallic tin is reduced and smelted in the reduction smelting furnace, the temperature is usually extremely high, usually higher than 1100 ℃, and the temperature of tin liquid discharged from the tin reduction smelting furnace after the reduction smelting is finished is more than 800 ℃ after the tin liquid is subjected to heat release and temperature reduction through a chute. High temperature tin liquid erodees and erodees very badly to metal material, if high temperature tin liquid directly puts into the tin pot, the life-span of tin pot can be very short, general tin smelting plant is used for receiving the tin pot of high temperature tin liquid, all can be at steel pot body inside lining clay brick, with this erode erosion that resists high temperature tin liquid, but because clay brick heat-proof quality is good, lead to the tin pot can't set up heating function, can lead to the tin liquid condensation to appear in the tin pot, it is unclean to take out the tin liquid with the pump, especially tin liquid cooling rate is fast during winter, the metallic tin of last pot condensation in the tin pot, fast heat absorption when next pot liquid tin is put into, accelerate tin liquid cooling condensation rate, thereby cause vicious circle.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a method for heating and preserving metal tin, so that a tin pot can resist the scouring and erosion of high-temperature tin liquid, has the functions of heating and preserving heat, ensures the smooth transfer of the tin liquid and can directly melt tin ingots.
The purpose of the invention is realized by the following technical scheme:
a tin heating and heat preserving method is characterized in that a heating and heat preserving device is arranged firstly, the device comprises a foundation poured by concrete, a refractory material body with a pit in the middle built on the foundation, an electric heating device embedded in the inner wall of the pit of the refractory material body, a pot body placed in the electric heating device and welded with an annular pot edge at a pot opening, and a carbon brick layer embedded in the inner wall of the pot body, wherein the electric heating device is connected with a temperature controller; then, heating and insulating tin liquid smelted by the tin reduction smelting furnace by using the heating and insulating device, or melting and insulating tin ingots by using the heating and insulating device;
when the heating and heat-preserving device is used for heating and preserving the molten tin smelted by the tin reduction smelting furnace, the molten tin smelted by the tin reduction smelting furnace is placed into a pot body inlaid with a carbon brick layer through a chute or a pipeline, then the electric heating device is started for heat-preserving operation, the movable thermocouple is placed into the molten tin to measure the temperature of the molten tin, and the movable thermocouple is connected with a temperature controller; when the movable thermocouple detects that the temperature of the tin liquid in the pot body is lower than a preset lower limit value, the temperature information is transmitted to the temperature controller, and the temperature controller starts the electric heating device to heat the pot body; when the temperature is higher than the preset upper limit value, the electric heating device stops so as to realize the heating and heat preservation of the tin liquid;
when the heating and heat-preserving device is used for melting tin ingots and preserving heat, the tin ingots are placed into a pot body inlaid with a carbon brick layer, an electric heating device is started for heating until the tin ingots are completely dissolved into tin liquid, then a movable thermocouple is placed into the tin liquid to measure the temperature of the tin liquid, and the movable thermocouple is connected with a temperature controller; when the movable thermocouple detects that the temperature of the molten tin in the pot body reaches a preset upper limit value, the temperature information is transmitted to the temperature controller, and the temperature controller controls the electric heating device to stop; when the movable thermocouple detects that the temperature of the molten tin in the pot body is lower than a preset lower limit value, the temperature controller starts the electric heating device to heat the pot body; so as to melt the tin ingot and realize the heating and heat preservation of the tin liquid.
Further, the pot body is a cast steel casting forming pot body.
Further, the electric heating device is a mica electric heating plate.
The heating and heat-preserving device provides good guarantee for heating and heat preservation of the metal tin. The pot body is internally embedded with carbon bricks with good heat-conducting property and scouring resistance, so that the tin pot can resist the scouring and erosion of high-temperature tin liquor, and the electric heating device can be arranged at the periphery of the pot body, thereby having the functions of heating and heat preservation, ensuring that the tin liquor is transferred smoothly, greatly prolonging the service life of equipment and effectively reducing the production operation cost.
The heating and heat-insulating device provided by the invention can be used for receiving high-temperature tin liquid discharged from a tin reduction smelting furnace, insulating and heating the tin liquid, can also be directly used for melting metal tin ingots and insulating the tin liquid, has various purposes, and meets the requirements of various production scenes. The heating and heat-insulating device has simple and reliable structure, easy control and long service life. The method greatly reduces the production cost, improves the operation efficiency, reduces the loss of molten tin, and is energy-saving and environment-friendly.
Drawings
FIG. 1 is a schematic view of a heating and heat-retaining apparatus used in the method of the present invention;
fig. 2 is a top view of fig. 1.
Detailed Description
The invention is further explained by the accompanying drawings.
A tin heating and heat preservation method is characterized in that a heating and heat preservation device is arranged, and the device is shown in figures 1 and 2 and comprises a foundation 1 poured by concrete, a refractory material body 2 with a pit in the middle built on the foundation, an electric heating device 3 embedded in the inner wall of the pit of the refractory material body, a pot body 4 placed in the electric heating device and a carbon brick layer 6 embedded in the inner wall of the pot body. The pot body 4 is a formed pot body cast by cast steel, an annular pot edge 5 is welded at the pot opening of the pot body, and the pot edge is arranged on the top surface of the refractory material body in a lapping mode. The electric heating device 3 is a mica electric heating plate, is an electric heating device with a resistance heating wire wound on a mica plate, and can be directly purchased in the market. The mica electric heating plate is made into an arc-shaped strip plate according to the shape of the outer wall of the pot body 4 by utilizing the good insulating property and the high temperature resistance of the mica plate, and is embedded in the inner wall of the concave pit of the refractory material body. The electric heating device is connected with a temperature controller 7 arranged beside the metal tin heating and heat preserving device. The carbon brick layer 6 embedded in the pot body is a carbon brick which is processed by taking graphite as a main raw material and has good heat conductivity and scouring resistance. Carbon bricks are commercially available. The electric heating device 3 and the temperature controller 7 can adopt the prior art equipment.
And heating and preserving heat of the molten tin smelted by the tin reduction smelting furnace by using the heating and preserving device, or melting a tin ingot by using the heating and preserving device and preserving heat of the molten tin.
When the heating and heat-preserving device is used for heating and preserving the molten tin smelted by the tin reduction smelting furnace, the molten tin smelted by the tin reduction smelting furnace is placed into the pot body 4 inlaid with the carbon brick layer 6 through a chute or a pipeline, then the electric heating device 3 is started for heat-preserving operation, the movable thermocouple 8 is placed into the molten tin to measure the temperature of the molten tin, and the movable thermocouple is connected with the temperature controller 7; when the movable thermocouple detects that the temperature of the tin liquid in the pot body is lower than a preset lower limit value, the temperature information is transmitted to the temperature controller, and the temperature controller starts the electric heating device 3 to heat the pot body; and when the temperature is higher than the preset upper limit value, the electric heating device stops so as to realize the heating and heat preservation of the tin liquid.
When the heating and heat-preserving device is used for melting tin ingots and preserving heat, the tin ingots are placed into the pot body 4 embedded with the carbon brick layer 6, the electric heating device 3 is started for heating until the tin ingots are completely dissolved into tin liquid, then the movable thermocouple 8 is placed into the tin liquid for measuring the temperature of the tin liquid, and the movable thermocouple is connected with the temperature controller 7; when the movable thermocouple detects that the temperature of the molten tin in the pot body reaches a preset upper limit value, the temperature information is transmitted to the temperature controller, and the temperature controller controls the electric heating device 3 to stop; when the movable thermocouple detects that the temperature of the molten tin in the pot body is lower than a preset lower limit value, the temperature controller starts the electric heating device to heat the pot body; so as to melt the tin ingot and realize the heating and heat preservation of the tin liquid.
The temperature controller 7 and the moving thermocouple 8 are only schematically shown in fig. 1. The temperature controller and the moving thermocouple are not shown in fig. 2. The pot internal carbon brick layer of setting up makes heating heat preservation device can resist the erosion and corrosion of high temperature tin liquid, possesses heating and heat preservation function again to the guarantee tin liquid shifts smoothly, has still prolonged the life of equipment by a wide margin, effectively reduces production operation cost.
Claims (3)
1. A tin heating and heat preservation method is characterized in that a heating and heat preservation device is arranged firstly, the device comprises a foundation (1) poured by concrete, a refractory material body (2) which is built on the foundation and is provided with a pit in the middle, an electric heating device (3) embedded in the inner wall of the pit of the refractory material body, a pot body (4) which is placed in the electric heating device and is welded with an annular pot edge (5) at a pot opening, and a carbon brick layer (6) embedded in the inner wall of the pot body, wherein the electric heating device (3) is connected with a temperature controller (7); then, heating and insulating tin liquid smelted by the tin reduction smelting furnace by using the heating and insulating device, or melting and insulating tin ingots by using the heating and insulating device;
when the heating and heat-preserving device is used for heating and preserving heat of molten tin smelted by the tin reduction smelting furnace, the molten tin smelted by the tin reduction smelting furnace is placed into a pot body (4) inlaid with a carbon brick layer (6) through a chute or a pipeline, then the electric heating device (3) is started for heat-preserving operation, the movable thermocouple (8) is placed into the molten tin to measure the temperature of the molten tin, and the movable thermocouple is connected with a temperature controller (7); when the movable thermocouple detects that the temperature of the tin liquid in the pot body is lower than a preset lower limit value, the temperature information is transmitted to the temperature controller, and the temperature controller starts the electric heating device (3) to heat the pot body; when the temperature is higher than the preset upper limit value, the electric heating device stops so as to realize the heating and heat preservation of the tin liquid;
when the heating and heat-preserving device is used for melting tin ingots and preserving heat, the tin ingots are placed into a pot body (4) embedded with a carbon brick layer (6), an electric heating device (3) is started for heating until the tin ingots are completely dissolved into tin liquid, then a movable thermocouple (8) is placed into the tin liquid to measure the temperature of the tin liquid, and the movable thermocouple is connected with a temperature controller (7); when the movable thermocouple detects that the temperature of the molten tin in the pot body reaches a preset upper limit value, the temperature information is transmitted to the temperature controller, and the temperature controller controls the electric heating device (3) to stop; when the movable thermocouple detects that the temperature of the molten tin in the pot body is lower than a preset lower limit value, the temperature controller starts the electric heating device to heat the pot body; so as to melt the tin ingot and realize the heating and heat preservation of the tin liquid.
2. The tin heating and insulating method as claimed in claim 1, wherein the pot body (4) is a cast steel molded body.
3. A method of tin heating and holding as set forth in claim 1, characterized in that the electric heating means (3) is a mica electric heating plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111072046.0A CN113758280B (en) | 2021-09-14 | 2021-09-14 | Tin heating and heat preserving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111072046.0A CN113758280B (en) | 2021-09-14 | 2021-09-14 | Tin heating and heat preserving method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113758280A true CN113758280A (en) | 2021-12-07 |
| CN113758280B CN113758280B (en) | 2023-10-20 |
Family
ID=78795283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111072046.0A Active CN113758280B (en) | 2021-09-14 | 2021-09-14 | Tin heating and heat preserving method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113758280B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201762415U (en) * | 2010-07-16 | 2011-03-16 | 卫战团 | Low-melting point metal recycling device |
| CN203704662U (en) * | 2014-01-13 | 2014-07-09 | 青海际华江源实业有限公司 | Ferrochrome smelting furnace lining |
| CN105444567A (en) * | 2014-08-27 | 2016-03-30 | 谭美俊 | High-heat-preservation tin melting furnace |
| WO2019029023A1 (en) * | 2017-08-07 | 2019-02-14 | 苏州列治埃盟新材料技术转移有限公司 | Copper-based composite material for conductive part of locomotive and preparation method thereof |
| CN209263634U (en) * | 2018-11-02 | 2019-08-16 | 江西新南山科技有限公司 | A kind of novel tin melting furnace |
| CN111590062A (en) * | 2020-06-16 | 2020-08-28 | 云南锡业股份有限公司锡业分公司 | Tin product casting heat-preservation feeding device and feeding method |
| CN111607711A (en) * | 2020-06-23 | 2020-09-01 | 云南锡业股份有限公司锡业分公司 | Liquid tin rapid cooling device and method |
-
2021
- 2021-09-14 CN CN202111072046.0A patent/CN113758280B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201762415U (en) * | 2010-07-16 | 2011-03-16 | 卫战团 | Low-melting point metal recycling device |
| CN203704662U (en) * | 2014-01-13 | 2014-07-09 | 青海际华江源实业有限公司 | Ferrochrome smelting furnace lining |
| CN105444567A (en) * | 2014-08-27 | 2016-03-30 | 谭美俊 | High-heat-preservation tin melting furnace |
| WO2019029023A1 (en) * | 2017-08-07 | 2019-02-14 | 苏州列治埃盟新材料技术转移有限公司 | Copper-based composite material for conductive part of locomotive and preparation method thereof |
| CN209263634U (en) * | 2018-11-02 | 2019-08-16 | 江西新南山科技有限公司 | A kind of novel tin melting furnace |
| CN111590062A (en) * | 2020-06-16 | 2020-08-28 | 云南锡业股份有限公司锡业分公司 | Tin product casting heat-preservation feeding device and feeding method |
| CN111607711A (en) * | 2020-06-23 | 2020-09-01 | 云南锡业股份有限公司锡业分公司 | Liquid tin rapid cooling device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113758280B (en) | 2023-10-20 |
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