CN214406951U - Automatic feeding device for producing macrocrystalline fused magnesia - Google Patents
Automatic feeding device for producing macrocrystalline fused magnesia Download PDFInfo
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- CN214406951U CN214406951U CN202120297919.7U CN202120297919U CN214406951U CN 214406951 U CN214406951 U CN 214406951U CN 202120297919 U CN202120297919 U CN 202120297919U CN 214406951 U CN214406951 U CN 214406951U
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- flue gas
- fused magnesia
- furnace
- feeding
- automatic feeding
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Abstract
The utility model provides an automatic feeding device for producing large-crystal fused magnesia, which comprises a plurality of flue gas collecting pipelines, a temperature measuring chamber, a thermocouple and a feeding control device, wherein the flue gas collecting pipelines are connected with a furnace cover of an ore-smelting furnace and are used for collecting flue gas of the ore-smelting furnace; and a thermocouple is arranged in the temperature measuring chamber and is connected with the feeding control device. The automatic feeding device for producing the large-crystal fused magnesia monitors the temperature of flue gas in real time in the smelting process, the temperature of the flue gas gradually rises in the furnace charge melting process, the collected temperature signal is converted and transmitted to the feeding device to control the starting of feeding after reaching the upper threshold, and the feeding is stopped when the collected temperature signal reaches the lower threshold, which indicates that the thickness of the furnace charge meets the smelting requirements. The device monitors the temperature of the flue gas in real time, and realizes automatic feeding of furnace burden.
Description
Technical Field
The utility model relates to a macrocrystal fused magnesia production facility especially relates to an automatic feed device for macrocrystal fused magnesia of production.
Background
The large-crystal fused magnesia is prepared by melting light-burned magnesia powder by high-temperature electric arc generated by discharge of an alternating-current three-phase electric graphite electrode, and is mainly provided with a feeding device, a dust removal device, a furnace bottom rail trolley, a furnace barrel and the like. The large-crystal fused magnesia is generally produced by utilizing night low-price electricity organization, after smelting at night, the furnace barrel is filled with smelted furnace materials, and then the furnace barrel and the furnace bottom rail trolley are pushed to a cooling station in a factory and naturally cooled for about one week. After cooling, the furnace burden shrinks, the furnace cylinder is lifted by the overhead crane to be dismantled and put into the next round for recycling.
In the actual production process, the material distribution method comprises manual material distribution, chute material distribution, rotary material distribution and the like, the furnace body is closed, the condition in the furnace cannot be observed in real time, and the time when furnace burden is fed after being melted depends on empirical data. If the charging is not timely added, the smelting time is prolonged, the smelting efficiency is low, the energy consumption is high, and if the charging is too early, gas is not smoothly discharged during melting, so that the charging is splashed, and furnace spraying and furnace dripping accidents are easily caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides an automatic feed device for producing macrocrystal fused magnesia has solved and has carried out reinforced problem according to the furnace charge condition of melting when producing macrocrystal fused magnesia, its technical scheme as follows:
an automatic feeding device for producing large-crystal fused magnesia comprises a plurality of flue gas collecting pipelines, a temperature measuring chamber, a thermocouple and a feeding control device, wherein the temperature measuring chamber is connected with a furnace cover of an ore-smelting furnace through the flue gas collecting pipelines and is used for feeding flue gas into the ore-smelting furnace; and a thermocouple is arranged in the temperature measuring chamber and is connected with the feeding control device.
A plurality of outlets are symmetrically formed above a furnace cover of the submerged arc furnace, and each outlet is connected with a corresponding smoke collecting pipeline.
And the temperature signal of the thermocouple is sent to a feeding control device connected with the production control system through the production control system for producing the large-crystal fused magnesia.
The feeding control device is provided with a control chip.
The thermocouple is inserted into the interior of the temperature measuring chamber through the opening of the temperature measuring chamber, so that the thermocouple can be replaced outside the temperature measuring chamber.
The feeding control device is provided with a valve, and the material is controlled to enter the submerged arc furnace through the valve.
The flue gas collecting pipelines have the same structure.
The automatic feeding device for producing the large-crystal fused magnesia monitors the temperature of flue gas in real time in the smelting process, the temperature of the flue gas is gradually increased when furnace charge is melted, the collected temperature signal is converted and transmitted to the feeding device to realize feeding after reaching the upper threshold limit, and the feeding is stopped when the collected temperature signal reaches the lower threshold limit and indicates that the thickness of the furnace charge meets the smelting requirement. The device monitors the temperature of the flue gas in real time, and realizes automatic feeding of furnace burden.
Drawings
FIG. 1 is a schematic structural view of the automatic feeding device for producing macrocrystalline fused magnesia;
the reference numbers in the figures: 1. a first flue gas collection duct; 2. a second flue gas collection duct; 3. measuring the temperature in the greenhouse; 4. a thermocouple; 5. a feed control device; 6. a furnace barrel; 7. a furnace cover; 8. and an electrode.
Detailed Description
As shown in fig. 1, the automatic feeding device for producing large-crystal fused magnesia comprises a first flue gas collecting pipeline 1, a second flue gas collecting pipeline 2, a temperature measuring chamber 3, a thermocouple 4 and a feeding control device 5.
Two outlets are formed in the upper portion of a furnace cover 7 of the submerged arc furnace 6 and are respectively connected with a first flue gas collecting pipeline 1 and a second flue gas collecting pipeline 2, the first flue gas collecting pipeline 1 and the second flue gas collecting pipeline 2 are jointly connected with a temperature measuring chamber 3, the other end of the first flue gas collecting pipeline 1 is connected with the left side of the temperature measuring chamber 3, and the other end of the second flue gas collecting pipeline 2 is connected with the right side of the temperature measuring chamber 3.
The automatic feeding device is characterized in that a thermocouple 4 is arranged in the temperature measuring chamber 3, the thermocouple 4 can be replaced through the outside, the thermocouple 4 collects temperature signals in the temperature measuring chamber 3 and transmits the temperature signals to the production control system, and the production control system converts the temperature signals and transmits the temperature signals to the feeding control device 5, so that automatic feeding is realized.
The signal of the thermocouple 4 can also be directly transmitted to the feeding control device 5, the feeding control device 5 is provided with a control chip, and the control chip is realized by adopting a single chip microcomputer.
The automatic feeding device for producing large-crystal fused magnesia monitors the temperature of flue gas in real time in the smelting process through the electrode 8, the temperature of the flue gas gradually rises in the melting process of furnace charge, the collected temperature signal is converted and transmitted to the feeding device to realize feeding after reaching the upper threshold limit, and the feeding is stopped when the collected temperature signal reaches the lower threshold limit and indicates that the thickness of the furnace charge meets the smelting requirement. The device monitors the temperature of the flue gas in real time, and realizes automatic feeding of furnace burden.
Claims (7)
1. The utility model provides a production macrocrystal automatic feed device for fused magnesia which characterized in that: the system comprises a plurality of flue gas collecting pipelines, a temperature measuring chamber, a thermocouple and a feeding control device, wherein the temperature measuring chamber is connected with a furnace cover of the submerged arc furnace through the flue gas collecting pipelines and is used for feeding flue gas into the submerged arc furnace; and a thermocouple is arranged in the temperature measuring chamber and is connected with the feeding control device.
2. The automatic feeding device for producing macrocrystalline fused magnesia according to claim 1, wherein: a plurality of outlets are formed above a furnace cover of the submerged arc furnace, and each outlet is connected with a corresponding smoke collecting pipeline.
3. The automatic feeding device for producing macrocrystalline fused magnesia according to claim 1, wherein: and the temperature signal of the thermocouple is sent to a feeding control device connected with the production control system through the production control system for producing the large-crystal fused magnesia.
4. The automatic feeding device for producing macrocrystalline fused magnesia according to claim 1, wherein: the feeding control device is provided with a control chip.
5. The automatic feeding device for producing macrocrystalline fused magnesia according to claim 1, wherein: the thermocouple is inserted into the interior of the temperature measuring chamber through the opening of the temperature measuring chamber, so that the thermocouple can be replaced outside the temperature measuring chamber.
6. The automatic feeding device for producing macrocrystalline fused magnesia according to claim 1, wherein: the feeding control device is provided with a valve, and the material is controlled to enter the submerged arc furnace through the valve.
7. The automatic feeding device for producing macrocrystalline fused magnesia according to claim 1, wherein: the flue gas collecting pipelines have the same structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120297919.7U CN214406951U (en) | 2021-02-02 | 2021-02-02 | Automatic feeding device for producing macrocrystalline fused magnesia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120297919.7U CN214406951U (en) | 2021-02-02 | 2021-02-02 | Automatic feeding device for producing macrocrystalline fused magnesia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214406951U true CN214406951U (en) | 2021-10-15 |
Family
ID=78021124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120297919.7U Active CN214406951U (en) | 2021-02-02 | 2021-02-02 | Automatic feeding device for producing macrocrystalline fused magnesia |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214406951U (en) |
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2021
- 2021-02-02 CN CN202120297919.7U patent/CN214406951U/en active Active
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