CN214095480U - Titanium slag smelting and feeding device for direct-current sealed electric furnace - Google Patents
Titanium slag smelting and feeding device for direct-current sealed electric furnace Download PDFInfo
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- CN214095480U CN214095480U CN202022620300.3U CN202022620300U CN214095480U CN 214095480 U CN214095480 U CN 214095480U CN 202022620300 U CN202022620300 U CN 202022620300U CN 214095480 U CN214095480 U CN 214095480U
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Abstract
The utility model belongs to the technical field of titanium sediment is smelted, concretely relates to titanium sediment feeding device is smelted to airtight electric stove of direct current. The problems that in the prior art, peripheral material distribution holes cause the thickening of furnace wall slag, the diameter of a molten pool becomes small, and the material collapse accident is easy to occur in the operation of an electric furnace are solved. The utility model discloses an install in the furnace roof center part at electric stove top, the center of furnace roof center part is provided with the centre bore, evenly be provided with the peripheral charge cavity of several around the centre bore, be provided with the cavity electrode in the centre bore, be provided with peripheral filling tube in the peripheral charge cavity. The utility model discloses the oven is kept away from to reinforced position, and the titanium slag smelting raw materials is difficult for the adhesion on the oven after getting into in the electric stove to prevent that the oven from hanging the sediment thickening, the molten bath diameter diminishes, avoids the electric stove to appear the material collapse accident in the operation, can effectually cover electric arc simultaneously, reduces electric arc thermal radiation, can improve the effective power of electric stove when using peripheral feed moreover. Is suitable for adding titanium slag smelting raw materials into a direct current closed electric furnace.
Description
Technical Field
The utility model belongs to the technical field of titanium sediment is smelted, concretely relates to titanium sediment feeding device is smelted to airtight electric stove of direct current.
Background
The existing titanium slag smelting forms are as follows: an open type electric furnace, a semi-closed type electric furnace and a closed type electric furnace. Among them, the titanium slag smelting method in a closed electric furnace is the most advanced method in the world today. It has two main ways: one is an alternating current arc furnace and the other is a direct current arc furnace. The large-scale closed direct current electric arc furnace has the characteristic of high process temperature, the electric furnace smelting is open arc smelting, and the titanium slag with high temperature on the surface of a molten pool in the furnace is in a molten state in the smelting process. Therefore, the sealing performance and the direct current efficiency are high for the closed direct current electric arc furnace. The technology for smelting titanium slag by a direct current closed electric furnace uses a hollow electrode for feeding, open arc smelting is adopted in smelting, and the surface of a molten pool in the furnace is in an open state.
In the prior art, in order to reduce the heat radiation of a high-temperature surface of a molten pool to a furnace top and reduce the heat loss of the furnace top, a peripheral material distribution hole is arranged on a furnace top cover of a direct-current closed electric furnace, so that the temperature of a cavity is attempted to be reduced, the heat load of the furnace top is reduced, and the temperature of flue gas of the electric furnace is reduced. However, in application, the peripheral material distribution holes cause the thickening of the slag on the furnace wall, the reduction of the diameter of a molten pool and the easy occurrence of material collapse accidents in the operation of the electric furnace.
SUMMERY OF THE UTILITY MODEL
Peripheral cloth hole can cause the oven to hang the sediment thickening among the prior art, and the molten bath diameter diminishes, and the problem of the accident of collapsing easily appears in the electric stove operation, the utility model provides a titanium sediment feeding device is smelted to airtight electric stove of direct current, its aim at: preventing the occurrence of material collapse accidents and ensuring the normal production.
The utility model adopts the technical scheme as follows:
the titanium slag smelting feeding device comprises a furnace top central part arranged at the top of an electric furnace, wherein a central hole is formed in the center of the furnace top central part, a plurality of peripheral feeding holes are uniformly formed in the periphery of the central hole, a hollow electrode is arranged in the central hole, and a peripheral feeding pipe is arranged in each peripheral feeding hole.
After the technical scheme is adopted, the titanium slag smelting raw material can be added into the electric furnace through the peripheral feeding pipe, the feeding position is closer to the electrode, the furnace wall is far away, the titanium slag smelting raw material is not easy to adhere to the furnace wall after entering the electric furnace, so that the furnace wall is prevented from being hung with slag to be thickened, the diameter of a molten pool is reduced, the material collapse accident in the operation of the electric furnace is avoided, electric arcs can be effectively covered, the heat radiation of the electric arcs is reduced, and the effective power of the electric furnace can be improved when peripheral feeding is used.
Preferably, the central hole is in the shape of a horn, and the diameter of the hole facing the inner side of the electric furnace is larger than that of the hole facing the outer side of the electric furnace.
Because the hollow electrode in the furnace is easy to be adhered with titanium slag, the central hole is arranged into a horn shape, and the titanium slag can be prevented from being wiped on the central piece when the hollow electrode moves up and down after being adhered with the slag.
Preferably, a first sealing packing is arranged between the central hole and the hollow electrode.
After the preferred scheme is adopted, the first sealing packing can seal between the hollow electrode and the central hole, and the requirement of the electric furnace for the sealing property of the smelting environment in the process of smelting titanium slag is met.
Preferably, the peripheral feed inlet is a counterbore, and a second sealing packing is arranged at the upper part of the counterbore.
After the preferred scheme is adopted, the second sealing packing can seal the peripheral feed hole and the peripheral feed pipe, and the requirement of the electric furnace for the sealing property of the smelting environment in the process of smelting titanium slag is met.
Preferably, the furnace top center piece is provided with a plurality of embedded bolts, and the embedded bolts are symmetrically arranged by taking the circle center of the center hole as the center.
After the preferred scheme is adopted, the furnace top central part is convenient to hoist in the installation process through the embedded bolts, and the embedded bolts are symmetrically arranged, so that the furnace top central part is more stable in the hoisting process and convenient to install.
Preferably, the roof center piece is cast from a casting compound.
After the preferred scheme is adopted, the furnace top central part is integrally formed, and the structure is more stable.
Preferably, the castable is a corundum refractory castable.
After the preferred scheme is adopted, the fire resistance of the furnace top central piece can be improved.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses can add titanium slag smelting raw materials in to the electric stove through peripheral filling tube, the reinforced position is close to the electrode more, keeps away from the oven, and the titanium slag smelting raw materials is difficult for the adhesion on the oven after entering into the electric stove to prevent that the oven from hanging the sediment thickening, molten bath diameter diminishes, avoids the electric stove to appear collapsing the accident in the operation, can effectually cover electric arc simultaneously, reduces electric arc thermal radiation, can improve the effective power of electric stove when using peripheral feed moreover.
2. The center hole is arranged to be trumpet-shaped, so that titanium slag can be prevented from being wiped on the center piece when the hollow electrode moves up and down after being adhered with slag.
3. The first sealing packing can seal between the hollow electrode and the central hole, and the requirement of the electric furnace for the sealing property of the smelting environment in the process of smelting titanium slag is met.
4. The second sealing packing can seal the peripheral feed hole and the peripheral feed pipe, and the requirement of the electric furnace for the sealing property of the smelting environment in the process of smelting titanium slag is met.
5. The furnace top center piece is convenient to hoist in the installation process through the embedded bolts, and the embedded bolts are symmetrically arranged, so that the furnace top center piece is more stable in the hoisting process and convenient to install.
6. The furnace top central part is formed by pouring the pouring material, and the furnace top central part is integrally formed, so that the structure is more stable.
7. The castable is corundum refractory castable, and can improve the refractory performance of the furnace top central part.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic plan view of the central member of the stove top.
The method comprises the following steps of 1-furnace top central part, 2-central hole, 3-peripheral charging hole, 4-hollow electrode, 5-peripheral charging pipe, 6-first sealing packing, 7-second sealing packing and 8-embedded bolt.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
The present invention will be described in detail with reference to fig. 1 and 2.
The utility model provides a direct current airtight electric stove smelts titanium sediment feeding device, is including installing in the furnace roof central part 1 at electric stove top, the center of furnace roof central part 1 is provided with centre bore 2, evenly be provided with the peripheral charge door 3 of several around the centre bore 2, inside hollow electrode 4 inserted centre bore 2 and stretched into the electric stove, be provided with peripheral filling tube 5 in the peripheral charge door 3. In this embodiment, the number of the peripheral feeding holes 3 is three, and the peripheral feeding holes are arranged around the central hole 2 at equal intervals.
In this embodiment, the central hole 2 is in the shape of a horn, and the aperture of the side facing the inside of the electric furnace is larger than the aperture of the side facing the outside of the electric furnace.
In this embodiment, a first sealing packing 6 is disposed at one end of the central hole 2 having a smaller aperture, and the first sealing packing 6 is used for sealing a gap between the central hole 2 and the hollow electrode 4.
In this embodiment, peripheral charge cavity 3 is the counter bore, be provided with the sealed packing 7 of second in the great one end of counter bore aperture, the sealed packing 7 of second is used for sealing the gap between peripheral charge cavity 3 and peripheral filling tube 5.
In this embodiment, the furnace top center piece 1 is provided with three embedded bolts 8, the three embedded bolts 8 are centrosymmetric with the center of the center hole 2, and the distances between the three embedded bolts 8 and the adjacent peripheral feeding holes 3 are equal.
In the embodiment, the furnace top central part 1 is formed by pouring corundum refractory castable.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (7)
1. The utility model provides a direct current airtight electric stove smelts titanium sediment feeding device which characterized in that: the furnace top center piece is characterized by comprising a furnace top center piece (1) installed at the top of an electric furnace, a center hole (2) is formed in the center of the furnace top center piece (1), a plurality of peripheral feeding holes (3) are uniformly formed in the periphery of the center hole (2), a hollow electrode (4) is arranged in the center hole (2), and a peripheral feeding pipe (5) is arranged in the peripheral feeding holes (3).
2. The titanium slag charging device for direct-current closed electric furnace smelting according to claim 1, characterized in that: the shape of the central hole (2) is horn-shaped, and the aperture of one side facing the inside of the electric furnace is larger than that of one side facing the outside of the electric furnace.
3. The titanium slag charging device for direct-current closed electric furnace smelting according to claim 1, characterized in that: a first sealing packing (6) is arranged between the central hole (2) and the hollow electrode (4).
4. The titanium slag charging device for direct-current closed electric furnace smelting according to claim 1, characterized in that: the peripheral feed opening (3) is a counter bore, and a second sealing packing (7) is arranged on the upper portion of the counter bore.
5. The titanium slag charging device for direct-current closed electric furnace smelting according to claim 1, characterized in that: the furnace roof central piece (1) is provided with a plurality of embedded bolts (8), and the embedded bolts (8) are symmetrically arranged by taking the circle center of the central hole (2) as the center.
6. The titanium slag charging device for direct-current closed electric furnace smelting according to claim 1, characterized in that: the furnace roof central piece (1) is formed by pouring a pouring material.
7. The titanium slag charging device for direct-current closed electric furnace smelting according to claim 6, is characterized in that: the castable is a corundum refractory castable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022620300.3U CN214095480U (en) | 2020-11-13 | 2020-11-13 | Titanium slag smelting and feeding device for direct-current sealed electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022620300.3U CN214095480U (en) | 2020-11-13 | 2020-11-13 | Titanium slag smelting and feeding device for direct-current sealed electric furnace |
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| Publication Number | Publication Date |
|---|---|
| CN214095480U true CN214095480U (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022620300.3U Active CN214095480U (en) | 2020-11-13 | 2020-11-13 | Titanium slag smelting and feeding device for direct-current sealed electric furnace |
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| CN (1) | CN214095480U (en) |
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Address after: 651600 Dapingzi, Shishan town, Wuding County, Chuxiong Yi Autonomous Prefecture, Yunnan Province Patentee after: Longbai Wuding Titanium Industry Co.,Ltd. Address before: 651600 Dapingzi, Shishan town, Wuding County, Chuxiong Yi Autonomous Prefecture, Yunnan Province Patentee before: Wu Li Li Titanium Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20230616 Address after: 675000 Dapingzi, Shishan Town, Wuding County, Chuxiong Yi Autonomous Prefecture, Yunnan Province Patentee after: Wudingguo Titanium Metal Co.,Ltd. Address before: 651600 Dapingzi, Shishan town, Wuding County, Chuxiong Yi Autonomous Prefecture, Yunnan Province Patentee before: Longbai Wuding Titanium Industry Co.,Ltd. |