CN212375344U - Liquid phase reduction magnesium smelting device - Google Patents
Liquid phase reduction magnesium smelting device Download PDFInfo
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- CN212375344U CN212375344U CN202020694569.3U CN202020694569U CN212375344U CN 212375344 U CN212375344 U CN 212375344U CN 202020694569 U CN202020694569 U CN 202020694569U CN 212375344 U CN212375344 U CN 212375344U
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Abstract
The utility model discloses a liquid phase reduction smelts magnesium device includes switch board, vacuum induction furnace, magnesium steam collection mechanism and vacuum air exhaust mechanism, vacuum air exhaust mechanism with magnesium steam collection mechanism is connected, magnesium steam collection mechanism with the vacuum induction furnace is connected, be provided with portable reaction vessel in the vacuum induction furnace, portable reaction vessel includes high temperature resistant reaction vessel, induction coil and moving mechanism, moving mechanism includes telescopic cylinder, rotating electrical machines and U type mount, U type mount with the induction coil joint, U type mount bottom with the rotating electrical machines is connected, the rotating electrical machines with telescopic cylinder's telescopic end fixed connection, telescopic cylinder is fixed in on the outer wall of vacuum induction furnace. The utility model adopts the above structure, simple structure, high temperature resistant reaction vessel is convenient to change.
Description
Technical Field
The utility model relates to a magnesium smelting device, in particular to a liquid phase reduction magnesium smelting device.
Background
The Pidgeon process is the most widely used hot process magnesium smelting process at present, ferrosilicon is used as a reducing agent, calcined dolomite is used as a magnesium-containing raw material, and after briquetting, metal magnesium is prepared through solid-solid reduction reaction under the vacuum condition of 1150-1200 ℃ and 1-13 Pa. The aluminum is used as a reducing agent, so that the magnesium smelting period is shortened, the energy consumption is reduced, but the aluminum is still a solid-solid reduction reaction, and the fundamental problem of magnesium reduction cannot be solved. The reaction rate and the magnesium reduction rate can be greatly accelerated through liquid-liquid or solid-liquid reduction reaction, and in the prior art, a vacuum high-temperature liquid magnesium smelting device and a magnesium smelting method are disclosed in a patent with an application publication number of CNIO4561601A in 2015, so that continuous magnesium smelting based on a liquid phase is realized. Need regularly change reaction vessel in the use, be convenient for change reaction vessel through rotating the drainage cover, lead to the junction of drainage cover and straight tube to seal unreliable, cause the leakage easily, other parts need be kept away simultaneously, and the structure is complicated, and is not convenient for change reaction vessel.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a liquid phase reduction smelts magnesium device, simple structure is convenient for change high temperature resistant reaction container.
In order to realize the above object, the utility model provides a liquid phase reduction smelts magnesium device, collect mechanism and vacuum pumping mechanism including switch board, vacuum induction furnace, magnesium steam, the vacuum pumping mechanism with magnesium steam is collected the mechanism and is connected, magnesium steam collect the mechanism with the vacuum induction furnace is connected, be provided with portable reaction vessel in the vacuum induction furnace, portable reaction vessel includes high temperature resistant reaction vessel, induction coil and moving mechanism, moving mechanism includes telescopic cylinder, rotating electrical machines and U type mount, U type mount with the induction coil joint, U type mount bottom with the rotating electrical machines is connected, the rotating electrical machines with telescopic cylinder's telescopic end fixed connection, telescopic cylinder is fixed in on the outer wall of vacuum induction furnace.
Preferably, the outer wall of the induction coil is symmetrically provided with fixing frame clamping grooves, the top of the induction coil is provided with a container clamping groove, a plurality of inlet grooves are distributed on the circumference of the upper side of the container clamping groove, the top of the high-temperature-resistant reaction container is fixedly provided with a hoisting plate, and the side face of the top of the high-temperature-resistant reaction container is fixedly provided with a clamping plate.
Preferably, a waste residue tank is further fixed in the vacuum induction furnace, a vacuum feeding device is fixed at the top of the vacuum induction furnace, a material receiving pipe is arranged at the bottom of the vacuum feeding device, and the bottom of the material receiving pipe is connected with the drainage cover.
Preferably, the magnesium steam collecting mechanism comprises a condenser and a dust remover, the dust remover is connected with the condenser, the condenser is connected with the vacuum air pumping mechanism, and the dust remover is connected with the flow guide cover through a straight pipe.
Preferably, the side wall of the vacuum induction furnace is fixed with a cleaning mechanism, the cleaning mechanism comprises a cleaning motor and a multi-stage telescopic screw rod, the multi-stage telescopic screw rod is connected with the cleaning motor, and the outermost side of the multi-stage telescopic screw rod is fixed with a threaded blade.
Therefore, the utility model adopts the above structure a liquid phase reduction smelts magnesium device, be provided with portable reaction vessel in the vacuum induction furnace, simple structure does not need other parts to hide, is convenient for change high temperature resistant reaction vessel.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic structural view of a liquid-phase reduction magnesium-smelting device of the present invention;
FIG. 2 is a schematic diagram of the structure of the movable reaction vessel of the present invention;
FIG. 3 is a schematic view of the waste residue pouring structure of the liquid-phase reduction magnesium-smelting device of the present invention.
Reference numerals
1. A vacuum induction furnace; 11. a drainage cover; 12. a straight pipe; 13. a material receiving pipe; 14. a waste residue tank; 2. a magnesium vapor collection mechanism; 21. a condenser; 22. a dust remover; 3. a vacuum pumping mechanism; 4. a vacuum feeding device; 5. a cleaning mechanism; 51. cleaning the motor; 52. a multi-stage telescopic screw; 6. a removable reaction vessel; 61. an induction coil; 611. entering a groove; 612. a fixed frame clamping groove; 62. a high temperature resistant reaction vessel; 621. hoisting the plate; 63. a U-shaped fixing frame; 64. a rotating electric machine; 65. a telescopic cylinder.
Detailed Description
Examples
Fig. 1 is the utility model relates to a magnesium device structure schematic diagram is smelted in liquid phase reduction, fig. 2 is the utility model discloses portable reaction vessel structure schematic diagram, fig. 3 is the utility model relates to a magnesium device is smelted in liquid phase reduction structure schematic diagram when pouring the waste residue, as shown in the figure, a magnesium device is smelted in liquid phase reduction includes switch board (not drawn in the picture), vacuum induction furnace 1, magnesium steam collects mechanism 2 and vacuum pumping mechanism 3, vacuum pumping mechanism 3 is collected mechanism 2 with magnesium steam and is connected, magnesium steam collects mechanism 2 and includes condenser 21 and dust remover 22, dust remover 22 is connected with condenser 21, condenser 21 is connected with vacuum pumping mechanism 3, dust remover 22 is connected with drainage cover 11 through straight tube 12. The top of the vacuum induction furnace 1 is fixed with a vacuum feeding device 4, the bottom of the vacuum feeding device 4 is provided with a material receiving pipe 13, and the bottom of the material receiving pipe 13 is connected with a drainage cover 11.
Be provided with portable reaction vessel 6 in the vacuum induction furnace 1, portable reaction vessel 6 includes high temperature resistant reaction vessel 62, induction coil 61 and moving mechanism, moving mechanism includes telescopic cylinder 65, rotating electrical machines 64 and U type mount 63, induction coil 61 outer wall symmetry is provided with the mount draw-in groove, U type mount 63 both sides and induction coil 61 joint, U type mount 63 bottom is connected with rotating electrical machines 64, rotating electrical machines 64 and telescopic cylinder 65's telescopic end fixed connection, telescopic cylinder 65 is fixed in on the outer wall of vacuum induction furnace 1. The top of the induction coil 61 is provided with a container slot, and a plurality of inlet slots 611 are distributed on the circumference of the upper side of the container slot. High temperature resistant reaction container 62 top is fixed with hoist and mount board 621, 62 top sides of high temperature resistant reaction container are fixed with the cardboard, during the installation, aim at the cardboard and go into groove 611, and rotatory high temperature resistant reaction container 62, make the cardboard get into in the container draw-in groove, the installation is dismantled conveniently and reliably, when needing to be changed high temperature resistant reaction container 62, telescopic cylinder 65 shrink, make high temperature resistant reaction container 62 not relative with drainage cover 11, be convenient for change, moreover, the steam generator is simple in structure, other parts do not need to dodge.
Still be fixed with waste residue jar 14 in vacuum induction furnace 1, 1 lateral wall of vacuum induction furnace is fixed with clearance mechanism 5, clearance mechanism 5 is including clearance motor 51 and multistage flexible screw rod 52, multistage flexible screw rod 52 is the common part of mechanical field, save a large amount of spaces, give no longer notice here, multistage flexible screw rod 52 is connected with clearance motor 51, multistage flexible screw rod 52 outside fixed thread blade, when the waste residue, make reaction container 62 be in the horizontality through the rotating electrical machines 64 rotation, start clearance motor 51, make high temperature resistant flexible screw rod 52 extension and through the rotation of screw blade under the waste residue from high temperature resistant reaction container 62 opening transfer into waste residue jar 14, make waste residue clearance cleaner.
When the magnesium alloy is processed, the Si-Ni alloy is used as a reducing agent for magnesium smelting, Ni has lower saturated vapor pressure and is difficult to volatilize compared with the Si-Cu alloy, and the component interval of the Si-Ni alloy is more continuous and stable when the liquidus temperature is lower than 1300 ℃ compared with the Si-Fe alloy. The Si-Ni alloy may contain Fe, Al, etcThe initial Si content of the metal element in the alloy is 55-65%, the temperature is 1280-1380 ℃, and the reducing agent is a completely molten liquid phase. Adding calcined dolomite and the like into a magnesium-containing raw material bin as magnesium-containing raw materials, adding a certain amount of bauxite, fluorite, MgO and the like as fluxing agents or slagging agents, and storing reducing alloy and other materials, namely 2CaO(s) +2MgO(s) + [ Si ]]Ni＝2CaO·SiO2(s) +2Mg (g), adding enough reducing alloy into a reaction container, enabling a reducing agent to be molten or liquid in an internal heating mode, adding materials and the like in a magnesium-containing bin in a proper proportion into the molten or liquid-phase Si-Ni alloy, smelting magnesium at the temperature of 1280-1380 ℃ and the vacuum degree of 1-500 Pa, and finishing the magnesium reduction reaction by the above formula; the Si content in the reducing agent is gradually reduced along with the reaction process, the vacuum degree can be properly improved, when the Si content is about 5 percent, the vacuum degree is lower than 10Pa, the smelting can be stopped when the melting point of the reducing alloy in the molten pool is raised to about 1400 ℃, or a certain amount of ferrosilicon is added into the reducing molten pool to increase the Si content in the molten pool to be within 65 percent. Ni in the reduced alloy does not participate in chemical reaction and can be recycled. At the same time, to avoid high melting point 2 CaO. SiO2The generation of the slag seriously influences the continuous reduction reaction and the fluidity of the slag, and bauxite, fluorite, MgO and the like can be simultaneously added into the slag to be taken as fluxing agents, so that the smooth slag discharge is ensured.
In the actual production process, the reducing agent, the temperature and the pressure have certain process matching degrees, and the actual processing parameters in the actual production process are as follows:
parameter 1: the Si content in the Si-Ni reducing alloy is 60%, calcined dolomite, alumina, fluorite and the like are added into a magnesium-containing raw material bin, the system pressure is 25Pa, the temperature is 1300 ℃, and magnesium reduction can be carried out.
Parameter 2: the Si content in the Si-Ni reducing alloy is 40%, calcined dolomite, alumina, fluorite and the like are added into a magnesium-containing raw material bin, the system pressure is 58Pa, the temperature is 1320 ℃, and magnesium reduction can be carried out.
Parameter 3: the Si content in the Si-Ni reducing alloy is 20%, calcined dolomite, alumina, fluorite and the like are added into a magnesium-containing raw material bin, the system pressure is 76Pa, the temperature is 1340 ℃, and magnesium reduction can be carried out.
Therefore, the utility model adopts the above structure a liquid phase reduction magnesium smelting device is provided with portable reaction vessel in the vacuum induction furnace, and simple structure does not need other parts to dodge, is convenient for change high temperature resistant reaction vessel.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solution of the present invention can still be modified or replaced by other equivalent means, and the modified technical solution can not be separated from the spirit and scope of the technical solution of the present invention.
Claims (5)
1. The utility model provides a liquid phase reduction smelts magnesium device, includes switch board, vacuum induction furnace, magnesium steam collection mechanism and vacuum pumping mechanism, vacuum pumping mechanism with magnesium steam collection mechanism is connected, magnesium steam collection mechanism with the vacuum induction furnace is connected, its characterized in that: the vacuum induction furnace is characterized in that a movable reaction container is arranged in the vacuum induction furnace and comprises a high-temperature-resistant reaction container, an induction coil and a moving mechanism, the moving mechanism comprises a telescopic cylinder, a rotary motor and a U-shaped fixing frame, the U-shaped fixing frame is clamped with the induction coil, the bottom of the U-shaped fixing frame is connected with the rotary motor, the rotary motor is fixedly connected with the telescopic end of the telescopic cylinder, and the telescopic cylinder is fixed on the outer wall of the vacuum induction furnace.
2. The liquid-phase reduction magnesium-smelting device according to claim 1, characterized in that: the high-temperature-resistant reaction container is characterized in that fixing frame clamping grooves are symmetrically formed in the outer wall of the induction coil, a container clamping groove is formed in the top of the induction coil, a plurality of inlet grooves are distributed in the circumference of the upper side of the container clamping groove, a hoisting plate is fixed to the top of the high-temperature-resistant reaction container, and a clamping plate is fixed to the side face of the top of the high-temperature-resistant reaction.
3. The liquid-phase reduction magnesium-smelting device according to claim 2, characterized in that: the vacuum induction furnace is characterized in that a waste residue tank is further fixed in the vacuum induction furnace, a vacuum feeding device is fixed at the top of the vacuum induction furnace, a material receiving pipe is arranged at the bottom of the vacuum feeding device, and the bottom of the material receiving pipe is connected with a drainage cover.
4. A liquid-phase reduction magnesium-smelting device according to claim 3, characterized in that: the magnesium steam collecting mechanism comprises a condenser and a dust remover, the dust remover is connected with the condenser, the condenser is connected with the vacuum air pumping mechanism, and the dust remover is connected with the drainage cover through a straight pipe.
5. The liquid-phase reduction magnesium-smelting device according to claim 4, characterized in that: the side wall of the vacuum induction furnace is fixed with a cleaning mechanism, the cleaning mechanism comprises a cleaning motor and a multi-stage telescopic screw rod, the multi-stage telescopic screw rod is connected with the cleaning motor, and the outermost side of the multi-stage telescopic screw rod is fixed with a threaded blade.
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| CN202020694569.3U CN212375344U (en) | 2020-04-29 | 2020-04-29 | Liquid phase reduction magnesium smelting device |
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| CN202020694569.3U CN212375344U (en) | 2020-04-29 | 2020-04-29 | Liquid phase reduction magnesium smelting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114293014A (en) * | 2021-12-16 | 2022-04-08 | 西安交通大学 | Silicon carbide-free thermal reduction magnesium metallurgy device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114293014A (en) * | 2021-12-16 | 2022-04-08 | 西安交通大学 | Silicon carbide-free thermal reduction magnesium metallurgy device and method |
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