CN213415596U - Broken electrode feeding mechanism for producing macrocrystalline fused magnesia - Google Patents
Broken electrode feeding mechanism for producing macrocrystalline fused magnesia Download PDFInfo
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- CN213415596U CN213415596U CN202022342299.2U CN202022342299U CN213415596U CN 213415596 U CN213415596 U CN 213415596U CN 202022342299 U CN202022342299 U CN 202022342299U CN 213415596 U CN213415596 U CN 213415596U
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Abstract
The utility model provides a production macrocrystal electric smelting magnesite is with garrulous electrode feed mechanism, including the hopper, directly send the material passageway, pay-off passageway, piston and push rod to one side, the hopper is installed in the top of directly sending the material passageway, the one end of directly sending the material passageway is connected with the pay-off passageway to one side, and the piston is installed to the other end, the other end and the push rod fixed connection of piston. According to the broken electrode feeding mechanism for producing macrocrystalline fused magnesia, the adding amount of broken electrodes is controlled through the material storage part of the feeding mechanism, a proper reducing atmosphere is generated in a submerged arc furnace, the macrocrystalline fused magnesia is ensured to be stable and uniform in component, the influence of dyeing on the appearance quality of the fused magnesia is reduced, and the yield of macrocrystalline fused magnesia is improved.
Description
Technical Field
The utility model relates to a macrocrystal fused magnesia production facility especially relates to a garrulous electrode feed mechanism for producing macrocrystal fused magnesia.
Background
The large-crystal fused magnesia has the advantages of high purity, large crystal grains, compact structure, strong slag resistance, good thermal shock resistance and the like, and is an important raw material for producing high-grade magnesia bricks, magnesia carbon bricks, unshaped refractory materials and the like.
The production process method is characterized in that light-burned magnesia powder is used as a raw material, a broken electrode is used as a reducing agent, and reduction sintering is carried out in a submerged arc furnace to prepare the large-crystal fused magnesia with the MgO content of 97-99% and the bluish-white appearance. The light-burned magnesia powder contains impurities such as SiO2, CaO, Fe2O3, Al2O3 and the like, and finally large-crystal fused magnesia is dyed, wherein the Fe2O3 is dyed most seriously, so that the reducing atmosphere in the submerged arc furnace is ensured to be a necessary condition for producing bluish-white large-crystal fused magnesia.
In the smelting process, when the adding amount of the broken electrodes is too much, the reduction atmosphere in the furnace is too concentrated and cannot be fully combusted, so that waste is caused, and the following defects can be brought by the volatile matters generated by the excessive broken electrodes: firstly, large holes are generated in a large-crystal fused magnesia fused weight, so that the yield is influenced; secondly, the temperature in the furnace is reduced, and the energy consumption in the calcining process is large; thirdly, a large amount of black smoke produced dyes large-crystal fused magnesia into black, which affects the appearance quality; fourthly, the inherent impurities in the broken electrodes increase the impurity content of the macrocrystalline fused magnesia, so that the components are unstable and uneven.
When the adding amount of the broken electrodes is too small, the reducing atmosphere in the submerged arc furnace is insufficient, and Fe2O3 cannot be reduced into FeO, so that the fused magnesia is dyed pink or red, the appearance quality is influenced, and the yield of large-crystal fused magnesia is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a garrulous electrode feed mechanism for production macrocrystal fused magnesia has solved the control problem of garrulous electrode addition in the hot stove in ore deposit, its technical scheme as follows:
the utility model provides a production macrocrystal electric smelting magnesite is with garrulous electrode feed mechanism, includes the hopper, directly send the material passageway, pay-off passageway, piston and push rod to one side, the hopper is installed in the top of directly sending the material passageway, the one end of directly sending the material passageway is connected with pay-off passageway to one side, and the piston is installed to the other end, the other end and the push rod fixed connection of piston.
The hopper is a hollow steel structure and comprises an upper hopper part and a lower hopper part which are connected from top to bottom, and the bottom of the lower hopper part is a hopper outlet.
The hopper is characterized in that the upper part of the hopper is in a quadrangular prism shape, the lower part of the hopper is in an inverted quadrangular frustum pyramid shape, and the bottom of the quadrangular prism is welded with the top of the inverted quadrangular frustum pyramid.
The straight feeding channel is a straight quadrangular prism-shaped steel hollow channel, and an opening fixedly connected with the hopper is formed in the upper part of the straight feeding channel.
The inclined feed channel has a downward slope of 30 °.
The shape of the piston is matched with the cross section shape of the straight feeding channel.
When the piston is moved to the maximum distance by the push rod, the opening hole is not exposed between the piston and the push rod. Preventing the broken electrodes from falling between the piston and the push rod.
According to the broken electrode feeding mechanism for producing macrocrystalline fused magnesia, the adding amount of broken electrodes is controlled through the material storage part of the feeding mechanism, a proper reducing atmosphere is generated in a submerged arc furnace, the macrocrystalline fused magnesia is ensured to be stable and uniform in component, the influence of dyeing on the appearance quality of the fused magnesia is reduced, and the yield of macrocrystalline fused magnesia is improved.
Drawings
FIG. 1 is a schematic structural view of the electrode crushing and feeding mechanism for producing large-crystal fused magnesia;
FIG. 2 is a schematic perspective view of the electrode crushing and feeding mechanism for producing large-crystal fused magnesia;
FIG. 3 is a schematic view of the piston and pushrod;
in the figure: 1. a hopper; 2. a direct feed channel; 3. an inclined feeding channel; 4. a piston; 5. a push rod; 11. the upper part of the hopper; 12. the lower part of the hopper; 13. and (4) a hopper outlet.
Detailed Description
As shown in figure 1 and figure 2, the utility model provides a production large crystallization is garrulous electrode feed mechanism for fused magnesia, including hopper 1, straight pay-off passageway 2, oblique pay-off passageway 3, piston 4 and push rod 5. The hopper 1 is arranged above the direct feeding channel 2, one end of the direct feeding channel 2 is connected with the inclined feeding channel 3, the other end of the direct feeding channel is provided with a piston 4, and the piston 4 is fixedly connected with a push rod 5.
The hopper 1 is of a steel hollow structure and comprises an upper hopper part 11 and a lower hopper part 12 which are connected from top to bottom, the upper hopper part 11 is in a quadrangular prism shape, the lower hopper part 12 is in an inverted quadrangular frustum shape, the bottom of the quadrangular prism is welded with the top of the inverted quadrangular frustum, and a lower outlet of the inverted quadrangular frustum is a hopper outlet 13.
The straight feeding channel 2 is a straight quadrangular prism-shaped steel hollow channel, an opening with the same size as the hopper outlet 13 is formed in the upper portion of the straight feeding channel, and the opening is fixedly connected with the hopper outlet 13. The hopper outlet 13 is welded on an opening on the straight feeding channel 2 and used for feeding materials into the straight feeding channel 2.
Put into garrulous electrode in hopper 1, garrulous electrode receives self action of gravity, descends to straight feeding channel 2 inside from hopper export 13, piles up the position and forms the storage position, in the operation, can follow the volume of once adding of confirming garrulous electrode through hot stove operating parameter in ore deposit, calculates the volume at storage position according to the bulk density of garrulous electrode, accessible hopper export 13's area and the volume size of this storage position of high adjustment of straight feeding channel 2.
The tail end of the direct feeding channel 2 is connected with an inclined feeding channel 3, the direct feeding channel 2 is communicated to the middle of the submerged arc furnace, a downward channel connected with the inclined feeding channel 3 is the inclined feeding channel 3, and the inclined feeding channel 3 has a downward slope of 30 degrees, so that the broken electrodes can slide into the submerged arc furnace conveniently. The straight material feeding channel 2 extends into the middle part of the submerged arc furnace through an opening formed by a round steel drum in a double-layer furnace cover, the double-layer furnace cover comprises an upper furnace cover and a lower furnace cover, and the upper furnace cover and the lower furnace cover are fixedly connected through the round steel drum.
The other side of the direct feeding channel 2 is provided with a piston 4, the cross section shape of the piston 4 is matched with that of the direct feeding channel 2, the rear end of the piston 4 is provided with a push rod 5, the push rod 5 is connected with a hydraulic driving pushing device, and the pushing device can be controlled manually or by an automatic program.
During the use, combine shown in figure 3, production broken electrode feed mechanism for macrocrystalline fused magnesia installs the side upper portion at the hot stove in ore deposit, and in the hot stove smelting process in ore deposit, use push rod 5 with piston 4 outwards tensile, broken electrode will reach the storage position because self gravity, when needs add broken electrode, uses manual control or automatic program control push rod 5, with the broken electrode propelling movement of storage position to the hot stove in ore deposit, can 1 ~ 3 times propelling movement broken electrode according to the addition volume of broken electrode, guarantee to accurately control the addition of broken electrode.
The electric control system of the automatic feeding mechanism for the broken electrodes for producing the large-crystal fused magnesia mainly collects system time and set time information of the broken electrodes by a computer, and then automatically controls the electric push rod mechanism to reciprocate after being processed by the PLC computer so as to realize the timed and quantitative feeding of the broken electrodes.
The broken electrode feeding mechanism for producing macrocrystalline fused magnesia accurately controls the adding amount of broken electrodes, creates a reducing atmosphere, ensures that macrocrystalline fused magnesia is stable and uniform in components, reduces fused magnesia dyeing, improves appearance quality and improves the yield of macrocrystalline fused magnesia.
Claims (7)
1. The utility model provides a production macrocrystal electric smelting magnesite is with garrulous electrode feed mechanism which characterized in that: the hopper is arranged above the direct feeding channel, one end of the direct feeding channel is connected with the oblique feeding channel, the piston is arranged at the other end of the direct feeding channel, and the other end of the piston is fixedly connected with the push rod.
2. The feeding mechanism of the broken electrode for producing large-crystal fused magnesia as claimed in claim 1, wherein: the hopper is a hollow steel structure and comprises an upper hopper part and a lower hopper part which are connected from top to bottom, and the bottom of the lower hopper part is a hopper outlet.
3. The feeding mechanism of the broken electrode for producing large-crystal fused magnesia as claimed in claim 2, wherein: the hopper is characterized in that the upper part of the hopper is in a quadrangular prism shape, the lower part of the hopper is in an inverted quadrangular frustum pyramid shape, and the bottom of the quadrangular prism is welded with the top of the inverted quadrangular frustum pyramid.
4. The feeding mechanism of the broken electrode for producing large-crystal fused magnesia as claimed in claim 1, wherein: the straight feeding channel is a straight quadrangular prism-shaped steel hollow channel, and an opening fixedly connected with the hopper is formed in the upper part of the straight feeding channel.
5. The feeding mechanism of the broken electrode for producing large-crystal fused magnesia as claimed in claim 1, wherein: the inclined feed channel has a downward slope of 30 °.
6. The feeding mechanism of the broken electrode for producing large-crystal fused magnesia as claimed in claim 1, wherein: the shape of the piston is matched with the cross section shape of the straight feeding channel.
7. The feeding mechanism of the broken electrode for producing large-crystal fused magnesia as claimed in claim 4, wherein: when the piston is moved to the maximum distance by the push rod, the opening hole is not exposed between the piston and the push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022342299.2U CN213415596U (en) | 2020-10-20 | 2020-10-20 | Broken electrode feeding mechanism for producing macrocrystalline fused magnesia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022342299.2U CN213415596U (en) | 2020-10-20 | 2020-10-20 | Broken electrode feeding mechanism for producing macrocrystalline fused magnesia |
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| Publication Number | Publication Date |
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| CN213415596U true CN213415596U (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022342299.2U Active CN213415596U (en) | 2020-10-20 | 2020-10-20 | Broken electrode feeding mechanism for producing macrocrystalline fused magnesia |
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| CN (1) | CN213415596U (en) |
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- 2020-10-20 CN CN202022342299.2U patent/CN213415596U/en active Active
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