Semi-continuous automatic magnesium smelting device, system and method
The semi-continuous automatic magnesium smelting device, which combines a tilted tank design with a quantitative funnel and an electric push rod controller, solves the problems of low time utilization and high labor intensity in magnesium smelting, and achieves efficient semi-continuous production.
Patent Information
- Application Number
- CN202511499820.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-21
- Publication Date
- 2025-12-12
AI Technical Summary
In existing magnesium smelting technologies, the reduction process of metallic magnesium has low time utilization, high labor intensity, inconvenient operation, and cannot achieve continuous production, resulting in low production efficiency.
A semi-continuous automatic magnesium smelting unit is adopted. Through the inclined tank design and quantitative funnel, the material balls are fed and discharged by their own gravity. Combined with electric push rods and controllers, automatic control is achieved, simplifying the operation process.
This improved the time utilization rate of the magnesium reduction process, reduced manual operation, enabled semi-continuous production, and increased production efficiency.
Smart Images
Figure CN121109780A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of magnesium smelting reduction, and in particular to a semi-continuous automatic magnesium smelting device, system and method. BACKGROUND
[0002] In the magnesium smelting reduction technology, the Pidgeon method is often used for magnesium metal reduction. The magnesium metal reduction tank is usually arranged horizontally, and the charge balls or the charge ball slag waste are added to the reduction tank by manpower or machine. The auxiliary work of charging and discharging exists for a certain length of time, which leads to low time utilization rate in the magnesium metal reduction process. After the charge ball slag is completely removed in the current magnesium metal reduction process, the charge balls for the next magnesium reduction work are added to the reduction tank by manpower or machine. This obviously has the problems of high labor intensity and inconvenient operation, and cannot continuously operate and produce, resulting in low production efficiency. SUMMARY
[0003] To solve or partially solve the problems in the related art, the present application provides a semi-continuous automatic magnesium smelting device, system and method, which can shorten the charging and discharging time in the tank body by means of the self-gravity of the charge balls in the magnesium metal reduction, simplify the operation process, and improve the production efficiency.
[0004] The first aspect of the present application provides a semi-continuous automatic magnesium smelting device, comprising: a frame body; a tank body, the tank body is partially inclinedly arranged on the frame body, the tank body comprises a slag outlet and an overflow outlet, the slag outlet is located at the end of the inclined part and is lower than the overflow outlet, and the overflow outlet is used for detachably mounting a magnesium crystallizer; a quantitative hopper, the quantitative hopper is in communication with the tank body and is used for storing charge balls and quantitatively feeding the charge balls into the tank body, and the outlet of the quantitative hopper is higher than the slag outlet; a stop mechanism, the stop mechanism is movably arranged outside the tank body and is used for opening or closing the slag outlet; a controller, the controller is electrically connected with the quantitative hopper and the stop mechanism, and is configured to: after the first magnesium crystallizer is mounted on the overflow outlet, control the stop mechanism to close the slag outlet; control the quantitative hopper to feed a set amount of charge balls into the tank body; after the magnesium reduction reaction of the set amount of charge balls in the tank body occurs, control the stop mechanism to open the slag outlet, so that the charge ball slag in the tank body slides out from the slag outlet by means of the self-gravity, and generate an operable identifier, the operable identifier represents that the first magnesium crystallizer is in an unloadable state.
[0005] In combination with the first aspect of the present application, in an optional embodiment, further comprising: an electric heating part sleeved on the tank body, the electric heating part being electrically connected with the controller; and / or, a vacuum pump and an equalizing valve, both of which are electrically connected with the controller, the vacuum pump being connected with the tank body on the frame body, and the equalizing valve being arranged on the tank body; and / or, a collecting groove located below the slag outlet.
[0006] In combination with the first aspect of the present application, in an optional embodiment, the tank body comprises an inclined lower pipe and an upper pipe in communication with the lower pipe, the slag outlet is arranged at the bottom end of the lower pipe, the overflow outlet is located in the upper pipe, and the angle of inclination of the lower pipe is less than 60°; and / or, the dosing hopper comprises a hopper body, a feeding valve and a discharge pipe, the outlet of the hopper body is connected with the inlet of the discharge pipe through the feeding valve, the inlet of the discharge pipe is higher than the outlet of the discharge pipe, the outlet of the discharge pipe is in communication with the tank body, and the feeding valve is electrically connected with the controller; and / or, the stop mechanism comprises an electric push rod, a connecting frame and a plug, the electric push rod is electrically connected with the controller, the connecting frame comprises a first end, a second end and a third end, the first end and the electric push rod are both hinged to the lower pipe, the second end is hinged to the free end of the electric push rod, and the third end is fixedly connected with the plug; when the free end of the electric push rod extends to a set distal limit, the plug blocks the slag outlet.
[0007] In combination with the first aspect of the present application, in an optional embodiment, the pipeline part of the lower pipe near the slag outlet is arc-shaped, the center corresponding to the arc shape is the same as the rotation center of the connecting frame, and when the free end of the electric push rod extends to a set distal limit, the plug is located in the arc-shaped pipeline part; and / or, the connecting frame comprises a straight rod and a bent rod, the straight rod is fixedly connected with the bent rod, the first end and the second end are two ends of the straight rod, the first end and the third end are two ends of the bent rod, and the second end is further connected with a counterweight, the counterweight is distributed on both sides of the hinged point of the first end and the second end.
[0008] The second aspect of the present application provides a semi-continuous automatic magnesium smelting system, comprising: at least two magnesium crystallizers; The semi-continuous automatic magnesium smelting device as described in the first aspect, wherein the overflow outlets are sequentially arranged in time sequence for the magnesium crystallizers.
[0009] The third aspect of the present application provides a semi-continuous automatic magnesium smelting method applied to the semi-continuous automatic magnesium smelting system as described in the second aspect, the method comprising: After the magnesium crystallizer is installed on the overflow port, the stop mechanism is controlled to close the slag outlet; The metering hopper is controlled to deliver a set amount of material balls into the tank, and the magnesium reduction reaction of the set amount of material balls occurs in the tank; After the magnesium reduction reaction of the set amount of material balls occurs in the tank, the stop mechanism is controlled to open the slag outlet, so that the material ball slag in the tank slides out of the slag outlet by gravity; An operable identifier is generated, which indicates that the magnesium crystallizer is in an unloadable state; After the magnesium crystallizer is unloaded and a new magnesium crystallizer is installed, the stop mechanism is controlled again to close the slag outlet.
[0010] In combination with the third aspect of the present application, in an optional embodiment, the stop mechanism includes an electric push rod, a connecting frame, and a plug, and the control of the stop mechanism to close the slag outlet includes: The free end of the electric push rod is controlled to extend forward to a set distal limit, and the plug is rotated with the connecting frame to block the slag outlet under the driving of the electric push rod.
[0011] In combination with the third aspect of the present application, in an optional embodiment, the metering hopper includes a hopper body, a feeding valve, and a discharge pipe, and the control of the metering hopper to deliver a set amount of material balls into the tank includes: The target opening degree of the feeding valve and the target time matched with the target opening degree are determined according to the set amount of material balls; The opening degree of the feeding valve is adjusted according to the target opening degree and the target time, and the material balls flow from the hopper body to the discharge pipe; After the target time, the feeding valve is closed.
[0012] In combination with the third aspect of the present application, in an optional embodiment, after the magnesium reduction reaction of the set amount of material balls occurs in the tank, the generation of the operable identifier and the control of the stop mechanism to open the slag outlet occur simultaneously or at different times.
[0013] In combination with the third aspect of the present application, in an optional embodiment, the magnesium reduction reaction of the set amount of material balls in the tank includes: After the vacuum pump is controlled to perform vacuumization on the tank, the electric heating part is controlled to heat the tank.
[0014] The technical solution provided by the present application can include the following beneficial effects: The technical scheme of the present application transforms the tank for magnesium reduction reaction, specifically, a part of the tank is designed to be inclined, and the slag outlet is arranged at the bottom end of the tank, and the slag outlet can be opened or closed under the action of the stop mechanism according to actual requirements, and a quantitative hopper is arranged at the feeding position of the tank, which can control the feeding amount of the material ball in a single magnesium reduction reaction; before the magnesium reduction reaction starts, a certain amount of material balls in the quantitative hopper enter the tank and slide downward along the inclined tank to perform the magnesium reduction reaction; during the magnesium reduction reaction, magnesium vapor overflows upward in the tank to the magnesium crystallizer; after the magnesium reduction reaction ends, the slag of the material ball can slide out of the tank by relying on its own gravity through the opened slag outlet. The technical scheme of the present application adopts the form of top-in and bottom-out and quantitative feeding, and the material ball can effectively shorten the feeding and discharging time in the tank by relying on its own gravity, the inclined design of the tank can also reduce the probability of collision and damage of the material ball in the tank, and the feeding and discharging process can be automatically controlled, thereby simplifying or reducing the manual operation process, reducing the labor of workers, and improving the production efficiency.
[0015] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS
[0016] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which like reference characters refer to like parts throughout the several views, and in which:
[0017] Figure 1 is a structural schematic diagram of a semi-continuous automatic magnesium smelting device shown in an embodiment of the present application; Figure 2 is a structural schematic diagram of a semi-continuous automatic magnesium smelting device provided with a magnesium crystallizer shown in an embodiment of the present application; Figure 3 is a structural block diagram of a semi-continuous automatic magnesium smelting device shown in an embodiment of the present application; Figure 4 is a structural schematic diagram of a semi-continuous automatic magnesium smelting system shown in an embodiment of the present application; Figure 5 is a flowchart of a semi-continuous automatic magnesium smelting method shown in an embodiment of the present application; In the figure: 1, frame body; 2, tank body; 21, upper pipe; 22, lower pipe; 23, slag outlet; 24, overflow outlet; 3, magnesium crystallizer; 31, first magnesium crystallizer; 32, second magnesium crystallizer; 4, quantitative hopper; 41, hopper body; 42, feeding valve; 43, discharging pipe; 5, stop mechanism; 51, electric push rod; 510, free end of electric push rod; 52, connecting frame; 521, bent rod; 522, straight rod; 523, first end; 524, second end; 525, third end; 53, plug; 54, counterweight; 61, controller; 62, electric heating part; 63, heat preservation part; 71, vacuum pump; 72, filter; 73, pressure equalizing valve; 8, collection tank. DETAILED DESCRIPTION
[0018] Embodiments of the present application will be described in more detail with reference to the drawings. Although the embodiments of the present application are shown in the drawings, it is understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.
[0019] The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in the present application and the appended claims, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "and / or," as used herein, refers to and encompasses any and all possible combinations of one or more of the associated listed items.
[0020] It will be understood that, although the terms "first," "second," "third," etc. can be used herein to describe various information, the information should not be limited by these terms. These terms are only used to distinguish one piece of information from another. For example, a first information can also be termed a second information, and, similarly, a second information can also be termed a first information, without departing from the scope of the present application. Therefore, the features defined with "first," "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.
[0021] The technical solutions of the embodiments of the present application are described in detail below in combination with the drawings.
[0022] Referring to Figure 1 The embodiments of the present application provide a semi-continuous automatic magnesium smelting device, which comprises a frame body 1, a tank body 2, a quantitative hopper 4 and a stop mechanism 5.
[0023] In some embodiments, the tank body 2 is partially inclined on the frame 1. The tank body 2 includes a slag outlet 23 and an overflow outlet 24. The slag outlet 23 is located at the end of the inclined portion and is lower than the overflow outlet 24. The overflow outlet 24 is used to detachably install a magnesium crystallizer 3.
[0024] The tank body 2 includes an inclined lower pipe 22 and an upper pipe 21 connected to the lower pipe 22. The slag outlet 23 is located at the bottom end of the lower pipe 22, and the overflow outlet 24 is located in the upper pipe 21.
[0025] like Figure 1 As shown, the tank 2 can be divided into two sections: a vertically distributed upper pipe 21 and an inclined lower pipe 22. The connection between the upper pipe 21 and the lower pipe 22 is bent, with a rounded transition. An inlet can be provided at the bent section, allowing the feed balls in the metering funnel 4 to enter the tank 2 and slide down the lower pipe 22 until stopped. After magnesium reduction, the feed ball slag can slide out of the tank 2 from the slag outlet 23 at the bottom of the lower pipe 22. Specifically, the outlet of the metering funnel 4 is connected to the connection between the upper pipe 21 and the lower pipe 22. If the amount of feed balls in the tank 2 is too small, the magnesium production efficiency will be too low. Therefore, the outlet of the metering funnel 4 should not be set too low; it can be located at the bend between the upper pipe 21 and the lower pipe 22. Furthermore, to prevent the material balls from colliding and breaking within the lower tube 22, the inclination angle of the lower tube 22 should not be too large. Preferably, the inclination angle of the lower tube 22 is below 60°. In at least one embodiment, the inclination angle of the lower tube 22 can be 53°.
[0026] In the explanation, in the reduction of metallic magnesium, the pellets are the formed products of the mixture in the magnesium reduction reaction. Specifically, they refer to the spherical or lumpy materials formed by uniformly mixing calcined white metal, ferrosilicon powder, fluorite powder, etc., according to the ingredient ratio, and then pressing them into spherical or lumpy shapes using a roller briquetting machine. The pellet slag is the solid waste remaining after the magnesium reduction reaction.
[0027] like Figure 2 As shown, when the magnesium crystallizer 3 is installed on the overflow port 24, it is connected to the upper pipe 21. The magnesium crystallizer 3 is used to collect the condensed magnesium vapor. To improve the efficiency of installation and removal of the magnesium crystallizer 3, it can be horizontally installed, specifically near the top of the upper pipe 21. To reduce interference from facilities above the tank 2, the magnesium crystallizer 3 and the metering funnel 4 can be positioned on the left and right sides of the tank 2. Specifically, the metering funnel 4 can be located on the concave side of the tank 2, and the magnesium crystallizer 3 on the corresponding side. In this embodiment, the magnesium crystallizer 3 is installed on the tank 2. When a set amount of pellets undergoes a magnesium reduction reaction in the tank 2, the magnesium crystallizer 3 condenses and collects the magnesium vapor flowing from the overflow port.
[0028] In some embodiments, a dosing hopper 4 is in communication with the tank body 2 for storing and dosing the balls into the tank body 2, and the outlet of the dosing hopper 4 is higher than the tapping hole 23.
[0029] In some embodiments, the dosing hopper 4 comprises a hopper body 41, a feeding valve 42 and a discharge pipe 43, the outlet of the hopper body 41 is connected to the inlet of the discharge pipe 43 through the feeding valve 42, the inlet of the discharge pipe 43 is higher than the outlet of the discharge pipe 43, the outlet of the discharge pipe 43 is in communication with the tank body 2, and the feeding valve 42 is electrically connected to the controller 61. The controller 61 controls the feeding valve 42 to open, and the balls enter the discharge pipe 43 from the hopper body 41. In some embodiments, different opening degrees of the feeding valve 42 correspond to different feeding amounts per unit time, and the opening degree and opening time of the feeding valve 42 can be controlled to achieve the input of the required amount of balls into the tank body 2 for magnesium reduction reaction according to the actual required amount of balls. In addition, the feeding valve 42 can be a sealing valve, which can provide a sealed environment for the tank body 2 when the feeding valve 42 is closed. In order to ensure that the balls in the discharge pipe 43 can enter the tank body 2 by their own gravity, the inlet of the discharge pipe 43 should be higher than the outlet.
[0030] In some embodiments, the stop mechanism 5 is arranged outside the tank body 2 for opening or closing the tapping hole 23. Obviously, the stop mechanism 5 comprises a first state and a second state; when the stop mechanism 5 is in the first state, the stop mechanism 5 blocks the tapping hole 23, i.e. closes the tapping hole; when the stop mechanism 5 is in the second state, i.e. opens the tapping hole 23, the material in the tank body 2 can slide out of the tapping hole 23 by its own gravity. Therefore, when the stop mechanism 5 is in the first state, the stop mechanism 5 blocks the tapping hole 23, which can provide a closed environment for the tank body 2; when the stop mechanism 5 is in the second state, the stop mechanism 5 does not block the tapping hole 23, so that the material in the lower pipe 22 can slide out of the tank body 2 under the action of gravity. In this embodiment, the balls in the lower pipe 22 are discharged from the tapping hole 23 by themselves after the stop mechanism 5 is switched from the first state to the second state, which reduces manual labor and makes the discharging operation simple and efficient.
[0031] The stop mechanism 5 comprises an electric push rod 51, a connecting frame 52 and a plug 53. The electric push rod 51 is electrically connected with a controller 61. The connecting frame 52 comprises a first end 523, a second end 524 and a third end 525. The first end 523 and the electric push rod 51 are both hinged to the lower tube 22. The second end 524 is hinged to a free end 510 of the electric push rod. The third end 525 is fixedly connected with the plug 53. When the free end 510 of the electric push rod extends to a set distal limit, the plug 53 blocks the slag outlet 23. In the embodiment, when the stop mechanism 5 is switched from the second state to the first state, the free end 510 of the electric push rod extends forward, driving the connecting frame 52 to rotate about the hinge point at the first end 523. The connecting frame 52 and the plug 53 are as a whole, and the plug 53 also rotates naturally. When the free end 510 of the electric push rod extends to the farthest end, the plug 53 just blocks the slag outlet 23, thereby sealing the bottom end of the lower tube 22.
[0032] It should be noted that the first end 523 and the electric push rod 51 are hinged to the outer sidewall of the lower tube 22, and the third end 525 and the plug 53 are at the bottom end of the lower tube 22. In order to meet the switching between the first state and the second state of the stop mechanism 5, the first end 523 and the third end 525 should not be a straight rod, but a bent rod 521. Specifically, the connecting frame 52 comprises a straight rod 522 and a bent rod 521. The straight rod 522 is fixedly connected with the bent rod 521. The first end 523 and the second end 524 are two ends of the straight rod 522, and the first end 523 and the third end 525 are two ends of the bent rod 521.
[0033] In addition, the second end 524 is further connected with a counterweight 54, which is distributed on both sides of the hinge point at the second end 524. The counterweight 54 is an object with a certain weight in the embodiment. When the stop mechanism 5 is in the first state, the gravity of the counterweight 54 can be decomposed into the pressing force borne by the plug 53, thereby improving the blocking ability of the plug 53 and ensuring the reliability of the sealing of the plug 53.
[0034] Preferably, the pipeline portion of the lower tube 22 near the slag outlet 23 is arc-shaped, and the center of the arc-shaped corresponds to the rotation center of the connecting frame 52. When the free end 510 of the electric push rod extends to the set farthest end, the plug 53 is located in the arc-shaped pipeline portion. In the present embodiment, the force applied by the internal material balls on the plug 53 is large during the magnesium reduction process, and there is a certain requirement for the thickness of the plug 53. In order to ensure the sealing quality, the plug 53 can be designed to extend into the pipeline portion of the lower tube 22 near the slag outlet 23. Considering that the motion track of the plug 53 is circular arc-shaped, the pipeline portion can be designed to be arc-shaped, and the center of the arc-shaped is the same as the rotation center of the motion track of the plug 53. Then, when the free end 510 of the electric push rod extends to the farthest end, the plug 53 is just located in the arc-shaped pipeline portion, and the lower tube 22 is completely blocked. Similarly, when the free end 510 of the electric push rod retracts to the nearest end, the plug 53 is away from the pipeline portion. In addition, the design of the pipeline portion needs to meet the requirement that all the material balls in the lower tube 22 can slide out of the lower tube 22 along the pipeline by gravity without the plug 53.
[0035] As shown in FIG. 6, in some embodiments, the controller 61 is electrically connected with the metering hopper 4 and the stop mechanism 5, and is configured to: control the stop mechanism 5 to close the slag outlet 23 after the magnesium crystallizer 3 is installed on the overflow outlet 24; control the metering hopper 4 to deliver a set amount of material balls into the tank body 2; control the stop mechanism 5 to open the slag outlet 23 after the set amount of material balls in the tank body 2 undergoes magnesium reduction reaction, so that the material ball slag in the tank body 2 slides out of the slag outlet 23 by gravity, and generate an operable identifier, which indicates that the magnesium crystallizer 3 is in an unloadable state. Figure 3
[0036] In the present embodiment, the metering hopper 4 and the stop mechanism 5 related to the feeding and discharging are connected to the controller 61. The controller 61 is connected with the feeding valve 42 in the metering hopper 4 to automatically control the feeding amount, and the controller 61 is connected with the electric push rod 51 in the stop mechanism 5 to open the slag outlet 23 for the material ball slag to naturally slide out of the tank body 2 by gravity, thereby realizing the automatic control of the magnesium smelting process. After the current magnesium reduction reaction is completed, the worker can unload the current magnesium crystallizer 3, and then install a new magnesium crystallizer 3 on the overflow outlet 24, so as to realize the semi-continuous magnesium reduction reaction.
[0037] Further, in some embodiments, an electric heating part 62 is further sleeved on the tank body 2, and the electric heating part 62 is electrically connected with the controller 61. The electric heating part 62 includes a heating pipe wound on the outer wall of the lower pipe 22. The electric heating part 62 is used to heat the tank body 2 outside the tank body 2, instead of the gas or coal gas heating in the Pidgeon process, so as to improve the temperature reliability and eliminate the smoke pollution. The electric heating can be direct current heating or other forms of heating.
[0038] Further, in some embodiments, a vacuum pump 71 and an equalizing valve 73 are further electrically connected with the controller 61. The vacuum pump 71 is connected with the tank body 2 on the frame 1, and the equalizing valve 73 is arranged on the tank body 2, specifically, the equalizing valve 73 is arranged on the upper pipe 21. Before the tank body 2 is heated, the controller 61 needs to control the vacuum pump 71 to work to perform vacuumizing treatment on the tank body 2. A filter 72 is arranged between the vacuum pump 71 and the tank body 2, and the filter 72 is connected with the vacuum pump 71 and the tank body 2 through a stainless steel pipe. After the magnesium reduction reaction is completed, the tank body 2 is in negative pressure, so the controller 61 needs to open the equalizing valve 73 at the top of the upper pipe 21 to eliminate the pressure difference between the inside and outside of the tank body 2 and balance the air pressure inside and outside the tank.
[0039] In order to improve the heating efficiency, a heat preservation part 63 can be further arranged on the side of the electric heating part 62 away from the tank body 2. The heat preservation part 63 is sleeved on the tank body and the heating pipe, and the heat preservation part 63 covers at least the lower pipe 22 of the tank body 2. When the tank body 2 is heated after being vacuumized, the pressure difference between the inside and outside of the tank body 2 is too large, thereby reducing the service life of the tank body 2. By arranging a layer of heat preservation part 63 outside the heating pipe, the heat generated by the heating pipe can mainly provide the inner cavity of the tank body 2, thereby improving the utilization rate of heat energy and avoiding the direct exposure of the tank body 2 to the air, so as to alleviate the case that the pressure difference between the inside and outside of the tank body 2 is too large. The heat preservation part 63 mainly includes a heat preservation shell and a heat preservation material filled in the heat preservation shell. The heat preservation material has the characteristics of high temperature resistance and low thermal conductivity, which is known to those skilled in the art and will not be described in detail here.
[0040] Further, in some embodiments, a collection groove 8 is arranged below the slag outlet 23, and the collection groove 8 is used to collect the slag balls sliding from the slag outlet 23.
[0041] In one production cycle of magnesium reduction, the magnesium crystallizer 3 is installed on the upper tube 21, the controller 61 controls the free end 510 of the electric push rod to extend to the farthest end, so that the arc-shaped plug 53 extends into the arc-shaped slag outlet 23, the controller 61 controls the feeding valve 42 to open to the target opening degree, the material ball in the hopper body 41 enters the lower tube 43 through the feeding valve 42 under the action of its own gravity, the material ball slides in the lower tube 43 to the tank body 2, and when the target time is reached, the feeding is completed, and the controller 61 controls the feeding valve 42 to close; the controller 61 controls the tank body 2 to be vacuumized by the vacuum pump 71; after the tank body 2 reaches a certain vacuum degree, the controller 61 controls the heating pipe spirally wound on the tank body 2 to be powered on to heat the tank body 2; under high temperature, the magnesium reduction reaction of the material ball in the tank body 2 occurs, the generated magnesium vapor flows upward from the overflow outlet 24 to the magnesium crystallizer 3 to condense and then deposit in the magnesium crystallizer 3 to form a magnesium ingot; after the magnesium reduction reaction of the tank body 2 is completed, the controller 61 controls the equalizing valve 73 to open to eliminate the negative pressure in the tank, and the controller 61 controls the electric push rod 51 to retract to make the plug 53 separate from the slag outlet 23, and the material ball slag in the tank falls from the slag outlet 23 to the collecting groove 8 under the action of its own gravity, and at the same time, the worker removes the magnesium crystallizer 3 from the tank body 2, so that one production cycle is completed.
[0042] As shown in Figure 4 The embodiment of the present application also provides a semi-continuous automatic magnesium smelting system, which comprises at least two magnesium crystallizers and the semi-continuous automatic magnesium smelting device as described above, wherein the overflow outlets are sequentially installed on the magnesium crystallizers in time sequence.
[0043] In the embodiment, for the first magnesium crystallizer 31 and the second magnesium crystallizer 32, after the magnesium reduction reaction corresponding to the first magnesium crystallizer 31 is completed, the worker removes the first magnesium crystallizer 31 from the overflow outlet 24, and then, without additional waiting, the worker can install the second magnesium crystallizer 32 on the overflow outlet 24 to start a new production cycle, the second magnesium crystallizer 32 condenses and collects new magnesium vapor, so that the magnesium crystallizer 3 is sequentially installed on the overflow outlet 24 in time sequence, and then the second magnesium crystallizer 32 is continuously removed after the magnesium reduction reaction, the removed second magnesium crystallizer 32 can be used for subsequent magnesium ingot collection, and thus the semi-continuous production of magnesium smelting is realized.
[0044] The semi-continuous automatic magnesium smelting system in the above embodiment has been described in detail in the embodiment of the semi-continuous automatic magnesium smelting device, and will not be described in detail here.
[0045] For other details of the semi-continuous automatic magnesium smelting system in the above embodiment, reference can be made to the description of the semi-continuous automatic magnesium smelting device in the above embodiment, which will not be described here.
[0046] AsFigures 1-5 As shown, the embodiment of the present application also provides a semi-continuous automatic magnesium smelting method, which is applied to the semi-continuous automatic magnesium smelting system, and mainly includes steps S501-S505.
[0047] Step S501: After the magnesium crystallizer 3 is installed on the overflow port 24, the stop mechanism 5 is controlled to close the slag outlet 23.
[0048] The stop mechanism 5 includes a first state and a second state. When the stop mechanism 5 is in the first state, the stop mechanism 5 blocks the slag outlet 23, i.e. closes the slag outlet 23. When the stop mechanism 5 is in the second state, i.e. opens the slag outlet 23, the material in the tank body 2 can slide out of the slag outlet 23 by relying on its own gravity. Further, the stop mechanism 5 includes an electric push rod 51, a connecting frame 52 and a plug 53. The electric push rod 51 is electrically connected with the controller 61. The connecting frame 52 includes a first end 523, a second end 524 and a third end 525. The first end 523 and the electric push rod 51 are both hinged to the lower pipe 22. The second end 524 is hinged to the free end 510 of the electric push rod. The third end 525 is fixedly connected with the plug 53. When the free end 510 of the electric push rod extends to a set distal limit, the plug 53 blocks the slag outlet 23.
[0049] In step S501, the stop mechanism 5 is controlled to close the slag outlet 23, including controlling the free end 510 of the electric push rod to extend forward to a set distal limit, and the plug 53 rotates to block the slag outlet 23 under the driving of the electric push rod 51 with the connecting frame 52. When the stop mechanism 5 is switched from the second state to the first state, the controller 61 controls the free end 510 of the electric push rod to extend forward, drives the connecting frame 52 to rotate around the hinge point at the first end 523, and the connecting frame 52 and the plug 53 rotate as a whole. When the free end 510 of the electric push rod extends to the farthest end, the plug 53 just blocks the slag outlet 23, thereby sealing the bottom end of the lower pipe 22.
[0050] Step S502: The controller controls the quantitative hopper 4 to deliver a set amount of material balls into the tank body 2, and the set amount of material balls undergo magnesium reduction reaction in the tank body 2.
[0051] The quantitative hopper 4 includes a hopper body 41, a feeding valve 42 and a discharge pipe 43. The outlet of the hopper body 41 is connected with the inlet of the discharge pipe 43 through the feeding valve 42. The inlet of the discharge pipe 43 is higher than the outlet of the discharge pipe 43. The outlet of the discharge pipe 43 is communicated with the tank body 2. The feeding valve 42 is electrically connected with the controller 61.
[0052] In step S502, the control quantitative hopper 4 transports a set amount of material balls into the tank body 2, including determining the target opening of the feeding valve 42 according to the set amount of material balls and the target time matched with the target opening; according to the target opening and the target time, the opening of the feeding valve 42 is adjusted, and the material balls flow from the hopper body 41 to the discharge pipe 43; after the target time, the feeding valve 42 is closed. Wherein, the target opening corresponds to a certain flow rate of the material balls, when the opening time of the feeding valve 42 is determined, that is, the target time is determined, the set amount of material balls can be determined according to the opening time and the target opening. Wherein, the controller 61 controls the material balls to enter the discharge pipe 43 from the hopper body 41 after the feeding valve 42 is opened. Wherein, different openings of the feeding valve 42 can correspond to different feeding amounts per unit time, according to the actual required amount of material balls, the opening of the feeding valve 42 and the opening time can be controlled to realize the input of the required amount of material balls into the tank body 2 for magnesium reduction reaction, and the feeding valve 42 can be a sealing valve, which can provide a sealed environment for the tank body 2 when the feeding valve 42 is closed. In order to ensure that the material balls in the discharge pipe 43 can enter the tank body 2 by their own gravity, the inlet of the discharge pipe 43 should be higher than the outlet.
[0053] At the same time, in step S502, the set amount of material balls in the tank body 2 undergoes magnesium reduction reaction, including controlling the electric heating part 62 to heat the tank body 2 after controlling the vacuum pump 71 to vacuumize the tank body 2. Before heating the tank body 2, the controller 61 also needs to control the vacuum pump 71 to work to vacuumize the tank body 2. After the magnesium reduction reaction is completed, the tank body 2 is under negative pressure, so the controller 61 needs to open the equalizing valve 73 at the top of the upper pipe 21 to eliminate the pressure difference between the inside and outside of the tank body 2, and balance the air pressure inside and outside the tank.
[0054] Step S503: After the set amount of material balls in the tank body 2 undergoes magnesium reduction reaction, the control stop mechanism 5 opens the tapping hole 23, so that the material ball slag in the tank body 2 slides out of the tapping hole 23 by its own gravity.
[0055] Wherein, the controller 61 can control the equalizing valve 73 to be opened, and when the air pressure inside and outside the tank is balanced, it is regarded as the end of magnesium reduction reaction, after which the controller 61 can control the electric push rod 51 to retract so that the plug 53 is separated from the tapping hole 23, and the material ball slag in the tank falls from the tapping hole 23 to the collecting groove 8 under the action of its own gravity.
[0056] Step S504: After the set amount of material balls in the tank body 2 undergoes magnesium reduction reaction, an operable identifier is generated, which indicates that the magnesium crystallizer 3 is in a state of being unloaded.
[0057] In order to ensure the safety controllability of production, a safety indication, i.e., an operable mark, can be given after the magnesium reduction reaction is determined to be completed, and then the worker takes off the magnesium crystallizer 3 collecting the condensed magnesium vapor from the tank 2, so that a single production cycle is completed Step S505: After the magnesium crystallizer 3 is unloaded and a new magnesium crystallizer 3 is installed, the stop mechanism 5 is controlled to close the slag outlet 23 again.
[0058] When the current production cycle is completed, the worker can immediately install a new magnesium crystallizer 3 at the overflow outlet 24 and start the next production cycle, thereby realizing semi-continuous magnesium production.
[0059] Compared with the non-continuous production of magnesium by the traditional Pidgeon method, in the embodiment of the present application, the slag can be quickly discharged during the two adjacent magnesium smelting processes, and the stop mechanism can be immediately controlled to close the tank after the magnesium crystallizer is taken off without obvious downtime, and the next magnesium smelting can be performed by the quantitative hopper, so that there is no obvious interval between the two magnesium smelting processes, and thus the magnesium smelting can be called semi-continuous.
[0060] Further, the generation of the operable mark and the control of the stop mechanism 5 to open the slag outlet 23 can occur simultaneously or at different times after the magnesium reduction reaction of the set amount of material balls in the tank 2 is completed. The start time of steps S503 and S504 is marked as the end of the magnesium reduction reaction of the set amount of material balls in the tank 2, and steps S503 and S504 can start simultaneously, or step S504 can be performed first and then step S503, and the order of the steps can be selected according to higher efficiency.
[0061] Regarding the semi-continuous automatic magnesium smelting method in the above embodiment, the specific way of performing each operation requires a mechanism which has been described in detail in the embodiment of the semi-continuous automatic magnesium smelting device, and will not be described in detail here.
[0062] The above has described the embodiments of the present application, and the above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles, practical applications, or improvements to the technology in the market of the embodiments, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.
Claims
1. A semi-continuous automatic magnesium smelting device, characterized in that, include: Frame; A tank body, wherein the tank body is inclinedly mounted on the frame, the tank body includes a slag outlet and an overflow outlet, the slag outlet is located at the end of the inclined portion and is lower than the overflow outlet, and the overflow outlet is used to detachably mount a magnesium crystallizer; A metering funnel, which is connected to the tank body, is used to store material balls and meterly convey material balls into the tank body. The outlet of the metering funnel is higher than the slag outlet. A stop mechanism, which is movablely located outside the tank, is used to open or close the slag outlet; A controller, electrically connected to the metering funnel and the stop mechanism, is configured to: After the first magnesium crystallizer is installed at the overflow port, the stop mechanism is controlled to close the slag outlet; The metering funnel is controlled to deliver a set amount of pellets into the tank. After the set amount of material balls undergo a magnesium reduction reaction in the tank, the stop mechanism is controlled to open the slag outlet, so that the material ball slag in the tank slides out of the slag outlet by its own gravity, and an operable indicator is generated, which indicates that the first magnesium crystallizer is in an unloadable state.
2. The semi-continuous automatic magnesium smelting apparatus according to claim 1, characterized in that, Also includes: An electric heating element is fitted onto the tank body, and the electric heating element is electrically connected to the controller; and / or, A vacuum pump and a pressure equalization valve are electrically connected to the controller; the vacuum pump is connected to the tank on the frame, and the pressure equalization valve is located in the tank; and / or, The collection trough is located below the slag outlet.
3. The semi-continuous automatic magnesium smelting apparatus according to claim 1, characterized in that, The tank body includes an inclined lower pipe and an upper pipe communicating with the lower pipe. The slag outlet is located at the bottom end of the lower pipe, and the overflow outlet is located in the upper pipe. The inclination angle of the lower pipe is less than 60°; and / or, The metering funnel includes a funnel body, a feed valve, and a discharge pipe. The outlet of the funnel body is connected to the inlet of the discharge pipe via the feed valve. The inlet of the discharge pipe is higher than the outlet of the discharge pipe. The outlet of the discharge pipe is connected to the tank body. The feed valve is electrically connected to the controller; and / or, The stop mechanism includes an electric push rod, a connecting frame, and a plug. The electric push rod is electrically connected to the controller. The connecting frame includes a first end, a second end, and a third end. The first end and the electric push rod are both hinged to the lower pipe. The second end is hinged to the free end of the electric push rod. The third end is fixed to the plug. When the free end of the electric push rod extends to a set far end limit, the plug blocks the slag outlet.
4. The semi-continuous automatic magnesium smelting apparatus according to claim 3, characterized in that, The lower pipe portion near the slag outlet is arc-shaped, and the center of the arc coincides with the rotation center of the connecting frame. When the free end of the electric push rod extends to the set distal limit, the plug is located within the arc-shaped pipe portion; and / or, The connecting frame includes a straight rod and a bent rod, the straight rod and the bent rod are fixedly connected, the first end and the second end are the two ends of the straight rod, the first end and the third end are the two ends of the bent rod, and the second end is also connected to a counterweight, the counterweight and the first end are distributed on both sides of the hinge point at the second end.
5. A semi-continuous automated magnesium smelting system, characterized in that, include: At least two magnesium crystallizers; The semi-continuous automatic magnesium smelting apparatus according to any one of claims 1 to 4, wherein the overflow outlets are sequentially installed with each of the magnesium crystallizers.
6. A semi-continuous automated magnesium smelting method, characterized in that, Applied to the semi-continuous automated magnesium smelting system as described in any one of claims 5, the method comprises: After installing the magnesium crystallizer on the overflow outlet, control the stop mechanism to close the slag outlet; A set amount of pellets is fed into a tank via a metering funnel, and the set amount of pellets undergoes a magnesium reduction reaction in the tank. After the set amount of pellets undergoes a magnesium reduction reaction in the tank, the stop mechanism is controlled to open the slag outlet, allowing the pellet slag in the tank to slide out of the slag outlet by its own gravity. Generate an operable identifier, which indicates that the magnesium crystallizer is in an unloadable state; After unloading the magnesium crystallizer and installing a new magnesium crystallizer, the stop mechanism is controlled again to close the slag outlet.
7. The semi-continuous automated magnesium smelting method according to claim 6, characterized in that, The stop mechanism includes an electric push rod, a connecting frame, and a plug. Controlling the stop mechanism to close the slag outlet includes: The free end of the electric push rod is controlled to extend forward to a set far end limit, and the plug rotates with the connecting frame under the drive of the electric push rod to block the slag outlet.
8. The semi-continuous automated magnesium smelting method according to claim 6, characterized in that, The metering funnel includes a funnel body, a feed valve, and a discharge pipe. Controlling the metering funnel to deliver a predetermined amount of pellets into the tank includes: The target opening degree of the feed valve and the target time matching the target opening degree are determined based on the set amount of feed balls. According to the target opening degree and the target time, the opening degree of the feed valve is adjusted, and the material ball flows from the funnel body to the discharge pipe; After the target time has elapsed, the feed valve is closed.
9. The semi-continuous automated magnesium smelting method according to claim 6, characterized in that, After the set amount of pellets undergoes a magnesium reduction reaction in the tank, the generation of the operable indicator and the control of the stop mechanism to open the slag outlet may occur simultaneously or at different times.
10. The semi-continuous automated magnesium smelting method according to claim 6, characterized in that, The predetermined amount of pellets undergoes a magnesium reduction reaction in the tank, including: After the vacuum pump is used to evacuate the tank, the electric heating unit is used to heat the tank.