CN111765755A - High-moisture red mud self-sintering submerged arc furnace - Google Patents
High-moisture red mud self-sintering submerged arc furnace Download PDFInfo
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- CN111765755A CN111765755A CN202010669887.9A CN202010669887A CN111765755A CN 111765755 A CN111765755 A CN 111765755A CN 202010669887 A CN202010669887 A CN 202010669887A CN 111765755 A CN111765755 A CN 111765755A
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- submerged arc
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
- F27B5/12—Arrangement of devices for charging
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
- F27B5/14—Arrangements of heating devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
- F27B5/18—Arrangement of controlling, monitoring, alarm or like devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/04—Sintering
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention discloses a high-moisture red mud self-sintering submerged arc furnace, which relates to the technical field of submerged arc metallurgical equipment and comprises a furnace body, three hollow electrodes, an electrode lifting device and a submerged arc furnace control system, wherein a set of submerged arc furnace self-sintering device is respectively arranged on the three hollow electrodes; a set of self-sintering device of the submerged arc furnace is arranged in the center of a hearth in the furnace body; the self-sintering device of the submerged arc furnace comprises a self-sintering device lifting device, a sintering cylinder, a self-sintering device feeding device and a negative pressure explosion-proof device; and the submerged arc furnaces on the three hollow electrodes extend into the hollow electrodes from the lower part of the sintering cylinder of the sintering device. The invention can solve the problems of difficult charging, large energy consumption, easy water explosion phenomenon and the like in the traditional ore-smelting furnace during red mud smelting.
Description
Technical Field
The invention relates to the technical field of ore smelting equipment, in particular to an ore heating furnace which is particularly suitable for smelting high-moisture red mud.
Background
The red mud is residue formed after alumina is extracted from bauxite, and the residue is rich in chemical components such as ferric oxide, silicon dioxide, aluminum oxide, calcium oxide, sodium oxide and the like. At present, only a few parts of red mud in the world are comprehensively utilized, most of the red mud is still sent to a storage yard for open-air storage, a large amount of land is occupied, a large amount of capital is consumed, a large amount of waste alkali liquor is easy to permeate into nearby farmlands, soil alkalization and swampiness are caused, surface underground water sources are polluted, and the environment and human health are damaged.
The red mud has high water content (more than 30 percent), belongs to high-water-content micro-powder muddy minerals, is viscous and not easy to flow, and has the problems of difficult feeding, high energy consumption, easy water storm phenomenon and the like when the common submerged arc furnace is adopted for smelting.
Disclosure of Invention
The invention aims to solve the technical problem of providing a high-moisture red mud self-sintering submerged arc furnace, which can solve the problems of difficult charging, high energy consumption, easy water explosion phenomenon and the like in the traditional submerged arc furnace during red mud smelting.
In order to solve the technical problems, the technical scheme of the invention is as follows: the high-moisture red mud self-sintering submerged arc furnace comprises a furnace body, three hollow electrodes which are held by an electrode lifting device and are uniformly distributed in a hearth, and a set of submerged arc furnace self-sintering device is respectively arranged on the three hollow electrodes; a set of self-sintering device of the submerged arc furnace is arranged in the center of the hearth; the self-sintering device of the submerged arc furnace comprises a self-sintering device lifting device arranged on a self-sintering device mounting platform, a sintering cylinder held by the self-sintering device lifting device, a self-sintering device feeding device arranged on the upper part of the sintering cylinder and a negative pressure explosion-proof device; the submerged arc furnace on the three hollow electrodes extends into the hollow electrode 3 from the lower part of the sintering cylinder of the sintering device, and the bottom end of the sintering cylinder is a conical cylinder.
The sintering device lifting device comprises a lifting hydraulic cylinder, an annular air bag, a steel bracket platform and an air bag seat; the annular air bag is arranged on the air bag seat and is connected with a gas power source of the submerged arc furnace; the sintering cylinder passes through a ring in the annular bladder; one end of the lifting hydraulic cylinder is connected with the air bag seat, the other end of the lifting hydraulic cylinder is connected with the steel bracket platform, and the bottom end of the steel bracket platform is fixed on the self-sintering device mounting platform; and a laser range finder aligned with the charge level of the solid furnace charge bed in the submerged arc furnace is arranged below the self-sintering device mounting platform.
The sintering device feeding device comprises a spiral feeder, a hopper for feeding the spiral feeder and an extrusion head arranged in the upper end of the sintering cylinder, wherein the extrusion head is connected with one end of a feeding hydraulic cylinder through a downward pressing ring, and the other end of the feeding hydraulic cylinder is fixed on a supporting plate connected with the outer wall of the sintering cylinder; and a temperature sensor is arranged at the lower section of the sintering cylinder.
The negative pressure explosion-proof device comprises a negative pressure pipe arranged in the sintering cylinder, a through hole is formed in the pipe wall of the negative pressure pipe, the bottom end of the negative pressure pipe is communicated with the hearth, and the top end of the negative pressure pipe is connected with a negative pressure induced draft fan; the bottom end of the negative pressure pipe is conical and is communicated with the hearth.
The lifting hydraulic cylinder and the feeding hydraulic cylinder are connected with a hydraulic station of the submerged arc furnace; the electrode lifting device, the submerged arc furnace gas power source, the laser range finder, the material level sensor, the temperature sensor and the screw feeder are all electrically connected with a submerged arc furnace control system; the signal of the laser range finder is sent to the submerged arc furnace control system to control the extension and retraction of the lifting hydraulic cylinder so as to control the lifting of the sintering cylinder and the operation of the sintering device feeding device;
signals of the material level sensor and the temperature sensor are sent to the submerged arc furnace control system to control the feeding of the screw feeder and the feeding hydraulic cylinder to push the materials to descend.
In the above technical solution, a more specific solution may also be: each sintering device feeding device is provided with three feeding hydraulic cylinders uniformly distributed on the supporting plate, a cylinder seat of each feeding hydraulic cylinder is fixed on the supporting plate, and a piston rod of each feeding hydraulic cylinder is connected with the pressing circular ring.
Further: every from sintering ware elevating gear be provided with three equipartition in the rising of gasbag seat falls pneumatic cylinder, every hydraulic cylinder's jar seat is fixed on the gasbag seat, hydraulic cylinder's piston rod with steel support platform is articulated.
Further: the sintering device lifting outer pipe body is arranged outside one section of the sintering cylinder which is held by the self-sintering device lifting device.
Further: the electrode lifting device is installed on the electrode lifting device installation platform, and a supporting wheel component used for righting the hollow electrode is arranged on the electrode lifting device installation platform at a position penetrating through the hollow electrode.
Further: and a supporting wheel component used for righting the sintering cylinder is arranged at the part of the self-sintering device mounting platform penetrating through the sintering cylinder.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, a set of self-sintering system, namely the submerged arc furnace self-sintering device, is configured on each hollow electrode, and the high-temperature waste heat of the ore heat in the hearth of the submerged arc furnace is fully utilized to enter the hollow electrode to bake the red mud moisture, so that the material is changed into clinker when falling to the melting surface in the furnace, and is smelted together with the main charging furnace burden.
2. The invention is provided with an explosion-proof system, namely a negative pressure system consisting of an internal negative pressure pipe and a negative pressure induced draft fan, and solves the problem that water explosion is easily generated due to high moisture of red mud in high-temperature baking.
3. The lifting of the electrode and the self-sintering device of the submerged arc furnace act simultaneously, and the self-sintering device of the submerged arc furnace can independently and automatically feed materials when the charge level is insufficient.
4. The self-sintering device feeding device of the invention fully utilizes the kinetic energy of high-temperature steam generated by the submerged arc furnace and automatically pushes the feeding under the action of the automatic control system.
5. The invention is a novel submerged arc furnace developed mainly aiming at the waste with high water content of micro powder in aluminum plants, namely red mud; meanwhile, other high-moisture micropowder muddy minerals can be smelted.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic view of the arrangement of the self-sintering device of the submerged arc furnace according to the present invention;
FIG. 3 is a schematic front view of a self-sintering device of a submerged arc furnace according to the present invention;
FIG. 4 is a schematic view of the lifting device of the self-sintering device of the present invention;
FIG. 5 is a schematic view of the cross-section taken along line A-A in FIG. 4;
FIG. 6 is a schematic view of a charging apparatus for a self-agglomerator in accordance with the present invention;
figure 7 is a schematic view of the charging cylinder arrangement of the present invention.
The reference numbers in the figures denote:
1. a solid furnace material layer, 2, a hearth, 3, a hollow electrode, 4, an electrode lifting device, 5, an electrode lifting device mounting platform, 6, a self-sintering device mounting platform, 7, a self-sintering device lifting device, 7-1, a lifting hydraulic cylinder, 7-2, an annular air bag, 7-3, a steel support platform, 7-4, an air bag seat, 8, a maintenance working platform, 9, a self-sintering device feeding device, 9-1, a feeding hydraulic cylinder, 9-2, an extrusion head, 9-3, a pressing circular ring, 9-4, a material level sensor, 9-5, a hopper, 9-6, a spiral feeder, 9-7, a temperature sensor, 9-8, a support plate, 10, a negative pressure explosion-proof device, 10-1, a negative pressure pipe, 10-2, a negative pressure induced draft fan, 11, a main feeding central submerged arc furnace self-sintering device, 12. laser range finder, 13, riding wheel subassembly, 14, sintering section of thick bamboo.
Detailed Description
The invention is further illustrated with reference to the following figures and examples:
the high-moisture red mud self-sintering submerged arc furnace shown in the figures 1, 2 and 3 comprises a furnace body and three hollow electrodes 3 which are held by an electrode lifting device 4 and extend into a hearth 2, wherein a set of submerged arc furnace self-sintering device is arranged on each hollow electrode 3; in addition, a set of submerged arc furnace self-sintering device is arranged at the center of a hearth 2 in the furnace body, namely a main feeding center submerged arc furnace self-sintering device 11 in the figure 1; the self-sintering device of the submerged arc furnace comprises a self-sintering device lifting device 7 arranged on a self-sintering device mounting platform 6, a sintering cylinder 14 held by the self-sintering device lifting device 7, a self-sintering device feeding device 9 arranged on the upper part of the sintering cylinder 14 and a negative pressure explosion-proof device 10; the submerged arc furnace on the three hollow electrodes 3 extends into the hollow electrodes 3 from the lower parts of sintering cylinders 14 of the sinterers, extends into the hearth 2 together with the electrodes and is positioned above the charge level of the solid furnace material layer 1 in the hearth 2; the bottom end of the sintering cylinder 14 is a conical cylinder, so that high-temperature furnace gas with flame or high-temperature waste heat in a hearth can conveniently enter the hollow electrode to bake red mud moisture, as shown by a bottom arrow in figure 1, and materials which are changed into clinker can smoothly descend into the hearth; in order to protect and facilitate the movement of the sintering cylinder 14, the sintering cylinder 14 can be externally sleeved with a sintering device lifting outer tube body at the part held by the self-sintering device lifting device 7.
As shown in fig. 4 and 5, the sintering device lifting device 7 comprises a lifting hydraulic cylinder 7-1, an annular air bag 7-2, a steel bracket platform 7-3 and an air bag seat 7-4; the annular air bag 7-2 is arranged on the air bag seat 7-4, and the annular air bag 7-2 is connected with a submerged arc furnace gas power source; the sintering cylinder 14 passes through the center of a circular ring in the annular air bag 7-2; each self-sintering device lifting device 7 is provided with three lifting hydraulic cylinders 7-1 which are uniformly distributed on the air bag seat 7-4, the cylinder seat of each lifting hydraulic cylinder 7-1 is fixed on the air bag seat 7-4, and the piston rod of each lifting hydraulic cylinder 7-1 is hinged with the steel bracket platform 7-3; the bottom end of the steel support platform 7-3 is fixed on the self-sintering device mounting platform 6; a laser range finder 12 which is aligned with the charge level of the solid furnace layer 1 in the hearth 2 of the submerged arc furnace is arranged below the self-sintering device mounting platform 6.
As shown in fig. 6 and 7, the charging device 9 of the sintering machine comprises a screw feeder 9-6, a hopper 9-5 for charging the screw feeder 9-6, and an extrusion head 9-2 provided in the upper end of the sintering cylinder 14; each sintering device feeding device 9 is provided with three feeding hydraulic cylinders 9-1 which are uniformly distributed on a supporting plate 9-8, a cylinder seat of each feeding hydraulic cylinder 9-1 is fixed on the supporting plate 9-8, and a piston rod of each feeding hydraulic cylinder 9-1 is connected with a lower pressing circular ring 9-3; a material level sensor 9-4 is arranged on the sintering cylinder 14 above the extrusion head 9-2; a temperature sensor 9-7 is arranged at the lower section of the sintering cylinder 14.
The negative pressure explosion-proof device 10 comprises a negative pressure pipe 10-1 arranged in a sintering cylinder 14, the pipe wall of the negative pressure pipe 10-1 is provided with a through hole, the bottom end of the negative pressure pipe 10-1 is communicated with a hearth, the bottom end of the negative pressure pipe 10-1 is in an inverted cone shape, and the top end of the negative pressure pipe 10-1 is connected with a negative pressure induced draft fan 10-2.
The lifting hydraulic cylinder 7-1, the charging hydraulic cylinder 9-1 and the hydraulic cylinders in the electrode lifting device 4 are connected with the hydraulic station; the hydraulic station, the submerged arc furnace gas power source, the laser range finder 12, the material level inductor 9-4, the temperature sensor 9-7 and the screw feeder 9-6 are all electrically connected with a submerged arc furnace control system; the signals of the laser range finder 12 are sent to the submerged arc furnace control system to control the extension and contraction of the hydraulic cylinders in the lifting hydraulic cylinder 7-1 and the electrode lifting device 4 so as to control the lifting of the sintering cylinder 14 and the electrode and the operation of the sintering device feeding device 9; signals of the material level sensor 9-4 and the temperature sensor 9-7 are sent to the submerged arc furnace control system to control the screw feeder 9-6 to feed and the feeding hydraulic cylinder 9-1 to push the material to descend; the electrode lifting device 4 and the sintering device lifting device 7 synchronously move under the control of the submerged arc furnace control system.
The electrode lifting device 4 is arranged on the electrode lifting device mounting platform 5, the electrode lifting device mounting platform 5 is positioned below the self-sintering device mounting platform 6, and the electrode lifting device mounting platform 5 and the self-sintering device mounting platform 6 can directly utilize a building piece.
The part of the self-sintering device mounting platform 6, which penetrates through the sintering cylinder 14 and the hollow electrode 3 of the electrode lifting device mounting platform 5, is provided with a riding wheel assembly 13 for righting the sintering cylinder 14 and the hollow electrode 3.
In order to facilitate observation and maintenance, a maintenance working platform 8 is arranged above the sintering device lifting device 7.
The invention relates to a novel submerged arc furnace which is designed mainly aiming at the smelting treatment of high-moisture particle waste materials generated by an aluminum plant, and mainly adopts hollow electrodes, and a set of submerged arc furnace self-sintering device is arranged in each hollow electrode; the co reduction and high temperature characteristic in the furnace gas are fully utilized to bake the mineral mixture, and the co partially reduces the high valence oxide in the high temperature mineral material into low valence oxide, so that the mineral material is changed into blocky semi-reduced high temperature clinker from powdery material, thereby being beneficial to the purposes of saving energy and reducing consumption.
In addition, a set of submerged arc furnace self-sintering device is independently added at the center of the electric furnace to serve as a main feeding device of the electric furnace, and because the feeding form at the position of the hollow electrode is limited by the burning loss condition of the electrode, when the electrode is not well baked at the initial stage of smelting of the electric furnace, if a large amount of feeding is easy to cause the electrode to be soft-broken, the failure rate of the electrode is increased, but when the furnace hearth needs most furnace materials, the middle submerged arc furnace self-sintering device plays the greatest role, and the defects are avoided; the reliability of the operation of the electric furnace is increased.
The self-sintering device of the submerged arc furnace in the hollow electrode moves synchronously with the lifting of the electrode so as to ensure the reliable operation of the electrode and avoid the occurrence of electrode accidents. The submerged arc furnace self-sintering device at the center of the surface is operated independently.
In order to solve the problem that high moisture (up to more than 30 percent) in the red mud is easy to generate gas explosion of high-pressure steam in a self-sintering device of the submerged arc furnace, a set of negative pressure explosion-proof device is arranged to solve the problem and ensure the production safety.
Claims (6)
1. The utility model provides a hot stove in high moisture red mud is from sintering ore deposit, includes furnace body, three cavity electrode (3) and electrode elevating gear (4) and hot stove control system in ore deposit, its characterized in that: a set of submerged arc furnace self-sintering device is respectively arranged on the three hollow electrodes (3); a set of self-sintering device of the submerged arc furnace is arranged at the center of a hearth (2) in the furnace body; the self-sintering device of the submerged arc furnace comprises a self-sintering device lifting device (7), a sintering cylinder (14), a self-sintering device feeding device (9) and a negative pressure explosion-proof device (10); the submerged arc furnace on the three hollow electrodes (3) extends into the hollow electrodes (3) from the lower parts of the sintering cylinders (14) of the sintering device; the bottom end of the sintering cylinder (14) is a conical cylinder;
the sintering device lifting device (7) comprises a lifting hydraulic cylinder (7-1), an annular air bag (7-2), a steel support platform (7-3) and an air bag seat (7-4); the annular air bag (7-2) is arranged on the air bag seat (7-4); the sintering cylinder (14) passes through a ring in the annular balloon (7-2); one end of the lifting hydraulic cylinder (7-1) is connected with the air bag seat (7-4), and the other end of the lifting hydraulic cylinder is connected with the steel bracket platform (7-3); a laser range finder (12) which is aligned with the charge level of the solid furnace charge layer (1) in the hearth (2) is arranged below the self-sintering device mounting platform (6);
the sintering device feeding device (9) comprises a spiral feeding machine (9-6), a hopper (9-5) and an extrusion head (9-2) arranged in the upper end of the sintering cylinder (14), wherein the extrusion head (9-2) is connected with one end of a feeding hydraulic cylinder (9-1) through a downward pressing ring (9-3), the other end of the feeding hydraulic cylinder (9-1) is fixed on a supporting plate (9-8) connected with the outer wall of the sintering cylinder (14), and a material level sensor (9-4) is arranged on the sintering cylinder (14) above the extrusion head (9-2); a temperature sensor (9-7) is arranged at the lower section of the sintering cylinder (14);
the negative pressure explosion-proof device (10) comprises a negative pressure pipe (10-1) arranged in the sintering cylinder (14), a through hole is formed in the pipe wall of the negative pressure pipe (10-1), and the top end of the negative pressure pipe (10-1) is connected with a negative pressure induced draft fan (10-2); the bottom end of the negative pressure pipe (10-1) is conical and is communicated with the hearth;
the electrode lifting device (4), the lifting hydraulic cylinder (7-1) and the charging hydraulic cylinder (9-1) are connected with a hydraulic station of the submerged arc furnace; the laser range finder (12), the material level sensor (9-4), the temperature sensor (9-7) and the screw feeder (9-6) are all electrically connected with the submerged arc furnace control system; and a signal of the laser range finder (12) is sent to the submerged arc furnace control system to control the operation of the electrode lifting device (4), the sintering device lifting device (7), the sintering device feeding device (9) and the negative pressure explosion-proof device (10).
2. The high moisture red mud self-sintering submerged arc furnace of claim 1, wherein: each sintering device feeding device (9) is provided with three feeding hydraulic cylinders (9-1) uniformly distributed on the supporting plate (9-8), a cylinder seat of each feeding hydraulic cylinder (9-1) is fixed on the supporting plate (9-8), and a piston rod of each feeding hydraulic cylinder (9-1) is connected with the lower pressing circular ring (9-3).
3. The high-moisture red mud self-sintering submerged arc furnace according to claim 1 or 2, characterized in that: each self-sintering device lifting device (7) is provided with three ascending and descending hydraulic cylinders (7-1) uniformly distributed on the air bag seat (7-4), the cylinder seat of each lifting hydraulic cylinder (7-1) is fixed on the air bag seat (7-4), and a piston rod of each lifting hydraulic cylinder (7-1) is hinged to the steel support platform (7-3).
4. The high moisture red mud self-sintering submerged arc furnace of claim 3, wherein: a sintering device lifting outer pipe body is sleeved outside one section of the sintering cylinder (14) held by the self-sintering device lifting device (7).
5. The submerged arc furnace self-sinterer as defined in claim 4, wherein: the electrode lifting device (4) is installed on the electrode lifting device installation platform (5), and a supporting wheel component (13) used for righting the hollow electrode (3) is arranged on the electrode lifting device installation platform (5) at a position penetrating through the hollow electrode (3).
6. The submerged arc furnace self-sinterer as defined in claim 4, wherein: and a supporting roller component (13) for righting the sintering cylinder (14) is arranged at the part of the self-sintering device mounting platform (6) penetrating through the sintering cylinder (14).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010669887.9A CN111765755B (en) | 2020-07-13 | 2020-07-13 | High-moisture red mud self-sintering submerged arc furnace |
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| CN202010669887.9A CN111765755B (en) | 2020-07-13 | 2020-07-13 | High-moisture red mud self-sintering submerged arc furnace |
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| CN111765755B CN111765755B (en) | 2022-02-01 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706135A (en) * | 2012-06-20 | 2012-10-03 | 柳州市金螺机械有限责任公司 | Ore smelting furnace |
| CN202770174U (en) * | 2012-06-20 | 2013-03-06 | 柳州市金螺机械有限责任公司 | Submerged arc furnace |
| CN105987601A (en) * | 2015-02-14 | 2016-10-05 | 佟玉鹏 | Short-flow high titanium slag smelting submerged arc furnace |
| CN205754930U (en) * | 2016-05-18 | 2016-11-30 | 山西三元炭素有限责任公司 | The lowering or hoisting gear of electrodes in mine hot stove |
-
2020
- 2020-07-13 CN CN202010669887.9A patent/CN111765755B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706135A (en) * | 2012-06-20 | 2012-10-03 | 柳州市金螺机械有限责任公司 | Ore smelting furnace |
| CN202770174U (en) * | 2012-06-20 | 2013-03-06 | 柳州市金螺机械有限责任公司 | Submerged arc furnace |
| CN105987601A (en) * | 2015-02-14 | 2016-10-05 | 佟玉鹏 | Short-flow high titanium slag smelting submerged arc furnace |
| CN205754930U (en) * | 2016-05-18 | 2016-11-30 | 山西三元炭素有限责任公司 | The lowering or hoisting gear of electrodes in mine hot stove |
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| CN111765755B (en) | 2022-02-01 |
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