A reaction furnace and a production apparatus for producing an alloy containing a low-boiling component

Abstract

The application discloses a reaction furnace and preparation device for preparing alloy containing low-boiling-point components, relates to the technical field of non-ferrous metal smelting, and comprises a furnace body and a feeding structure. The furnace body is internally provided with a hearth. The furnace body is provided with a feeding port, an exhaust hole and a discharging structure which are in communication with the hearth. The feeding port is used for conveying other component materials except low-boiling-point components into the hearth. The feeding structure is used for uniformly conveying low-boiling-point component materials into main component materials in the hearth. The discharging structure is used for discharging smelted alloy. The low-boiling-point component materials are uniformly conveyed into other component materials in the hearth through the feeding structure, so that the low-boiling-point component materials are mixed with other component materials more uniformly, and fine and uniform alloy phases can be obtained.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of non-ferrous smelting, in particular to a reaction furnace and preparation device for preparing an alloy containing a low-boiling-point component. BACKGROUND

[0002] In industry, an alloy (such as a mercury amalgam, zinc-iron, magnesium-iron, etc.) with a component having a boiling point lower than the melting point of the main component is often prepared by chemical or powder metallurgy methods, which not only has low efficiency but also is difficult to obtain a fine and uniform alloy phase, thereby seriously restricting the performance research and application of such alloys. Therefore, there is an urgent need for a smelting device specially designed for such alloys. SUMMARY

[0003] The present application aims to provide a reaction furnace and preparation device for preparing an alloy containing a low-boiling-point component to solve the problems existing in the prior art and to obtain a fine and uniform alloy phase.

[0004] To achieve the above-mentioned purpose, the present application provides the following solutions:

[0005] The present application provides a reaction furnace for preparing an alloy containing a low-boiling-point component, comprising a furnace body and a feeding structure, wherein the furnace body is provided with a hearth, and the feeding structure is used to feed low-boiling-point component materials into the hearth, and the furnace body is provided with a feeding port, an exhaust hole and a discharging structure in communication with the hearth, the feeding port is used to feed other component materials except the low-boiling-point component into the hearth, the feeding structure is used to uniformly feed the low-boiling-point component materials into the main component materials in the hearth, and the discharging structure is used to discharge the smelted alloy.

[0006] Preferably, the feeding structure comprises a gas-permeable brick embedded in the bottom of the hearth and a feeding pipeline, one end of the feeding pipeline is connected with the gas-permeable brick, and the other end of the feeding pipeline is used to be connected with a low-boiling-point component material storage structure and an inert gas storage structure.

[0007] Preferably, a stirrer is further included, wherein the stirring structure of the stirrer is located in the hearth, and the driving structure of the stirrer is located outside the hearth.

[0008] Preferably, heating structures are arranged in the hearth and the discharging structure.

[0009] Preferably, the discharging structure comprises a discharging pipeline, one end of the discharging pipeline is located at the bottom of the hearth and is in communication with the hearth, and the other end of the discharging pipeline is in communication with the outside of the furnace body.

[0010] Preferably, a stopper mounting hole is formed on the furnace body, the stopper mounting hole is communicated with the hearth, the position of the stopper mounting hole corresponds to one end of the discharging pipeline, the stopper mounting hole is used for placing a stopper, and one end of the stopper is located in one end of the discharging pipeline.

[0011] Preferably, an emergency discharging port is formed on the furnace body, the emergency discharging port is located at the lower part of the furnace body and is communicated with the hearth; a sampling port is formed on the furnace body and is communicated with the hearth.

[0012] The application further provides a preparation device, which comprises an inert gas storage structure, a preheater, an evaporator, a smelting furnace and a reaction furnace for alloy preparation containing low-boiling-point components, the inert gas storage structure is used for storing inert gas, the evaporator is used for heating low-boiling-point component materials, the smelting furnace is used for smelting main component materials, the inert gas storage structure is connected with the preheater through a first pipeline, the preheater is connected with the evaporator through a first heat preservation pipeline, the evaporator is connected with a feeding structure of the reaction furnace for alloy preparation containing low-boiling-point components through a second heat preservation pipeline, the preheater is connected with the feeding structure of the reaction furnace for alloy preparation containing low-boiling-point components through a third heat preservation pipeline, and the smelting furnace is connected with a feeding port of the reaction furnace for alloy preparation containing low-boiling-point components.

[0013] Preferably, a heater and a valve are arranged on the first heat preservation pipeline, the second heat preservation pipeline and the third heat preservation pipeline.

[0014] The application has the following technical effects relative to the prior art:

[0015] The low-boiling-point component materials are uniformly fed into other component materials in the hearth through the feeding structure, so that the low-boiling-point component materials are mixed with other component materials more uniformly, and fine and uniform alloy phases can be obtained. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description only constitute some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative effort.

[0017] Figure 1 It is a schematic view of the reaction furnace for alloy preparation containing low-boiling-point components of the application;

[0018] Figure 2 It is a schematic view of the preparation device of the application;

[0019] Figure 3 This is a flowchart of the preparation method using the preparation apparatus of the present invention;

[0020] Wherein: 100-Reaction furnace for preparing alloys containing low-boiling-point components, 1-Furnace body, 2-Furnace chamber, 3-Feed inlet, 4-Exhaust vent, 5-Sampling port, 6-Emergency discharge port, 7-Permeable brick, 8-Feeding pipeline, 9-Agitator, 10-Heating structure, 11-Discharge pipeline, 12-Stop rod mounting hole, 13-Stop rod, 14-Evaporator, 15-Smelting furnace, 16-Inert gas storage structure, 17-Preheater, 18-First insulation pipeline, 19-Second insulation pipeline, 20-Third insulation pipeline. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] The purpose of this invention is to provide a reaction furnace and preparation apparatus for preparing alloys containing low-boiling-point components, so as to solve the problems existing in the prior art and obtain fine and uniform alloy phases.

[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1

[0025] like Figure 1 As shown: This embodiment provides a reaction furnace 100 for preparing alloys containing low-boiling-point components, used for melting aluminum-mercury alloys, wherein the melting point of aluminum is higher than the boiling point of mercury. It includes a furnace body 1 and a feeding structure. The furnace body 1 is provided with a furnace chamber 2. The furnace body 1 has a feed port 3, an exhaust port 4 and a discharge structure that are connected to the furnace chamber 2. The feed port 3 is located on the upper side of the furnace body 1 and is used to feed other components besides the low-boiling-point components into the furnace chamber 2. The feed port 3 is provided with a sealing cover and is in a sealed state when no material is being fed to ensure airtightness. The feeding structure is used to uniformly convey the low-boiling-point component material (i.e., mercury) to the main component material in the furnace chamber 2. The exhaust port 4 is located at the top of the furnace body 1 and is used to connect to a vacuum pipe to discharge excess gas in the furnace chamber 2. The discharge structure is used to discharge the smelted alloy. In this embodiment, the low-boiling-point component material is uniformly conveyed to the other component materials in the furnace chamber 2 through the feeding structure, so that the low-boiling-point component material is mixed more evenly with the other component materials, and a fine and uniform alloy phase can be obtained.

[0026] Specifically, in this embodiment, the furnace body 1 comprises, from the outside in, a steel shell, an insulation layer and a refractory layer. The steel shell is composed of a load-bearing framework and an outer shell, which is used to maintain the shape of the smelting device and support other structures and equipment. The insulation layer is used to prevent rapid heat diffusion from the hearth 2, avoid excessive temperature of the steel shell and save energy. The refractory layer is used to resist the erosion of high-temperature molten alloy.

[0027] In this embodiment, the feeding structure comprises the air brick 7 and the feeding pipeline 8. The air brick 7 is embedded in the bottom of the hearth 2, the upper surface of the air brick 7 is flush with the bottom of the hearth 2, the upper surface of the air brick 7 is in contact with the molten alloy, and the working temperature of the air brick 7 is not lower than 710℃. The material of the air brick 7 can be selected from non-aluminum-infiltrated porous ceramics, such as alumina-based porous ceramics, silicon carbide porous ceramics doped with BaSO4, Na3AlF6, CaSO4, CaF2, Cr2O3, Si3N4, AlF3, P2O5, TiB2, SrTiO3, etc., and silicon nitride porous ceramics, etc. The air brick 7 needs to ensure that the air passages on its upper and lower surfaces are unobstructed and the side surface is sealed, and the material does not infiltrate the molten alloy and low-boiling-point components. The air brick 7 is used to transport low-boiling-point components with inert gas as the carrier to the hearth 2. One end of the feeding pipeline 8 is connected to the lower surface of the air brick 7, and the other end of the feeding pipeline 8 is used to be connected to the low-boiling-point component material storage structure and the inert gas storage structure 16. The feeding pipeline 8 is used to transport inert gas containing low-boiling-point component vapor. In this embodiment, the air brick 7 is arranged at the bottom of the furnace body 1 to introduce inert gas containing low-boiling-point component vapor into the molten main component. The feeding process of this embodiment has the characteristics of feeding from the bottom of the hearth 2 and the vapor being dispersed into a large number of small bubbles by the air brick 7 before entering the molten alloy, which makes the low-boiling-point components more easily mixed with other components, reduces the volatilization loss, and improves the utilization rate of raw materials. The reactivity of aluminum-mercury alloy with water can be realized by adjusting the amount of mercury introduced and controlling the mercury content in the alloy.

[0028] In this embodiment, the stirring device 9 is also included. A stirring device mounting hole is formed in the furnace body 1, the stirring structure of the stirring device 9 is located in the hearth 2, and the stirring structure is located below the liquid level in the hearth 2. The stirring device 9 is used to stir the molten alloy to make the components uniformly mixed. The stirring device 9 is composed of a rotor made of high-temperature-resistant ceramic or graphite, a bearing, a sealing element, a flange and a transmission mechanism. The driving structure of the stirring device 9 is located on the outside of the top of the furnace body 1.

[0029] In this embodiment, the discharging structure comprises a discharge pipeline 11. One end of the discharge pipeline 11 is located at the bottom of the hearth 2 or the side of the hearth 2 and is in communication with the hearth 2. The other end of the discharge pipeline 11 is a discharge port (aluminum discharging port) and is in communication with the outside of the furnace body 1. The discharge pipeline 11 is used to output the prepared molten alloy for subsequent casting and other purposes.

[0030] In this embodiment, the top of the furnace body 1 is provided with a stopper mounting hole 12, the stopper mounting hole 12 is communicated with the hearth 2, the position of the stopper mounting hole 12 corresponds to one end of the discharge pipeline 11, the stopper mounting hole 12 is used for placing the stopper 13, one end of the stopper 13 is located in one end of the discharge pipeline 11, cooperates with the valve assembly of the discharge pipeline 11, is used for controlling the opening and closing of the discharge pipeline 11, the other end of the stopper 13 is used for connecting the lifting mechanism, the opening and closing of the discharge structure is controlled by the stopper 13, the stopper 13 is controlled through the lifting mechanism, so as to facilitate the discharge.

[0031] In this embodiment, the heating structure 10 is arranged in the hearth 2 and the discharge pipeline 11 of the discharge structure, the heating structure 10 prevents the solidification of the aluminum-mercury alloy in the discharge structure during the reaction in the furnace body 1 and the discharge, and the heating structure 10 of the discharge pipeline 11 is mainly used for intermittent casting, avoiding the movement of the whole furnace body 1 caused by pouring discharge. The heating structure 10 in the hearth 2 can adopt various ways such as silicon-carbon heating rod, quartz heating rod and heating blanket, and the heating structure 10 arranged in the discharge pipeline 11 can adopt various ways such as silicon-carbon heating rod, quartz heating rod, heating blanket or induction heater. Both of the heating structures 10 adopt temperature feedback and PLC control.

[0032] In this embodiment, the emergency discharge port 6 is arranged on the furnace body 1, the emergency discharge port 6 is opposite to the discharge port, the emergency discharge port 6 is located at the lower part of the furnace body 1 and is communicated with the hearth 2, the emergency discharge port 6 is controlled to open and close by the manual mechanism, the emergency discharge port 6 is used for emptying the molten alloy in the hearth 2 in emergency, preventing the molten alloy from solidifying in the hearth 2 and damaging the hearth 2; the sampling port 5 is arranged above the maximum liquid level of the top of the furnace body 1 or the side of the furnace body 1, the sampling port 5 is communicated with the hearth 2, is used for sampling and monitoring components, and is closed by the sealing cover in normal times.

[0033] This embodiment can realize the addition of low-boiling-point components to liquid high-melting-point components, has the potential of single-furnace ton-level, no risk of explosion and spray, and safe production of such alloys, and solves many problems such as easy explosion, extreme danger, easy damage of equipment and unguaranteed quality of the low-boiling-point components during feeding. Since the mercury enters the molten aluminum bath in the form of vapor, the whole process is safe and controllable, and the mercury explosion boiling phenomenon does not occur. Under the double action of the feeding structure and the stirrer 9, the aluminum-mercury alloy with relatively uniform components can be obtained. When the exhaust hole 4 is connected with the negative pressure structure, the low negative pressure design of the hearth 2 is formed, the recycling and pollution prevention of the low-boiling-point components are ensured, and the design is more environmentally friendly and energy-saving than the traditional positive pressure design.

[0034] Embodiment two

[0035] As Figure 2As shown: This embodiment also provides a preparation apparatus, including an inert gas storage structure 16, a preheater 17, an evaporator 14, a melting furnace 15, and a reaction furnace 100 for preparing alloys containing low-boiling-point components as described in Embodiment 1. The inert gas storage structure 16 is used to store inert gases, the evaporator 14 is used to heat low-boiling-point component materials, and the melting furnace 15 is used to melt main component materials. The inert gas storage structure 16 is connected to the preheater 17 through a first pipeline, the preheater 17 is connected to the evaporator 14 through a first insulation pipeline 18, the evaporator 14 is connected to the feeding structure of the reaction furnace 100 for preparing alloys containing low-boiling-point components through a second insulation pipeline 19, the preheater 17 is connected to the feeding structure of the reaction furnace 100 for preparing alloys containing low-boiling-point components through a third insulation pipeline 20, and the melting furnace 15 is connected to the feed inlet 3 of the reaction furnace 100 for preparing alloys containing low-boiling-point components.

[0036] In this embodiment, the first insulation pipe 18, the second insulation pipe 19, and the third insulation pipe 20 are made of 310S or 316L seamless pipes, and are not limited to the above two materials. The heater used to heat the seamless pipe is a cast copper heating ring or a ceramic heating ring, and is not limited to the above two heating rings. The heater is used to precisely control the temperature above the boiling point of the low boiling point component, but not too high. Gaseous mercury is transported through an inert gas and then through the second insulation pipe 19 and the third insulation pipe 20 to ensure that the mercury will not cause an excessively violent phase change reaction (boiling over) when it comes into contact with molten aluminum and suddenly boils.

[0037] In this embodiment, heaters and valves are provided on the first insulation pipe 18, the second insulation pipe 19, and the third insulation pipe 20.

[0038] In this embodiment, an inert gas is selected as the protective gas. Mercury vapor and the inert gas are introduced into the aluminum molten metal through the feeding structure. The mercury vapor carried is diffused into the aluminum molten metal. While avoiding the risk of explosion, the diffusion of a large number of inert gas bubbles can improve the uniformity of alloy component mixing. In addition, a large number of inert gas bubbles can remove hydrogen, impurities and other harmful components in the alloy.

[0039] like Figure 3 As shown: This embodiment also provides a method for preparing aluminum-mercury alloy using a preparation apparatus, including the following steps:

[0040] Step 1: Set up the preparation apparatus;

[0041] Step 2: Calculate the required amount of mercury based on the mass of aluminum added to the reactor 100 for the preparation of alloys containing low-boiling-point components, and calculate the amount and flow rate of inert gas required to transport mercury based on the preparation time requirements.

[0042] Step three, put the weighed aluminum into the smelting furnace 15 for melting, according to the time of heating the reaction furnace 100 for the preparation of the alloy containing low boiling point components to the rated temperature (for example 695±15℃), the preheating of the reaction furnace 100 for the preparation of the alloy containing low boiling point components is started, and the second heat preservation pipeline 19 is heated to 360±40℃;

[0043] Step four, put the weighed mercury into the evaporator 14, and check the air tightness of the second heat preservation pipeline 19 from the evaporator 14 to the reaction furnace 100 for the preparation of the alloy containing low boiling point components;

[0044] Step five, according to the expected time of transferring aluminum and the time required for heating, the preheater 17 and the heater of the third heat preservation pipeline 20 are started, when the third heat preservation pipeline 20 is heated to 400±40℃, the valve of the third heat preservation pipeline 20 through which the inert gas directly enters the reaction furnace 100 for the preparation of the alloy containing low boiling point components is opened, and after the air in the third heat preservation pipeline 20 is blown away, the valve is temporarily closed, and the evaporator 14 is started according to the expected feeding time;

[0045] Step six, after the aluminum is melted, the surface oxidation slag is removed, and the molten aluminum is transferred to the reaction furnace 100 for the preparation of the alloy containing low boiling point components;

[0046] Step seven, the transferred molten aluminum is heat preserved in the reaction furnace 100 for the preparation of the alloy containing low boiling point components, so that the temperature inside the hearth 2 is above 35±15℃ of the melting point of aluminum; the stirrer 9 is started to make the oxidation slag on the bottom float to the surface, and then the surface slagging treatment is carried out, and after the slagging is completed, the feeding port 3 is closed;

[0047] Step eight, the inert gas preheater 17 is started to heat, the heater of the first heat preservation pipeline 18 is started to heat and preserve the first heat preservation pipeline 18, and the evaporator 14 is started to heat the mercury;

[0048] Step nine, after the temperature of the evaporator 14 reaches the rated value, the valve through which the inert gas enters the reaction furnace 100 for the preparation of the alloy containing low boiling point components through the preheater 17, the evaporator 14 and the second heat preservation pipeline 19 is opened, and the mercury is delivered to the reaction furnace 100 for the preparation of the alloy containing low boiling point components;

[0049] Step ten, the time of starting to cast aluminum and the time of heating the heating structure 10 of the material placing structure are predicted, and the material placing structure is heated at a proper time; when the predetermined casting time is reached, a sample of molten aluminum amalgam is taken from the sampling port 5 of the reaction furnace 100 for preparing the alloy containing low boiling point components, and the components are detected, and the sampling is performed at intervals until the mercury content reaches the requirement; if the components reach the requirement, the heating of the evaporator 14 is stopped, and the valve for conveying the inert gas is switched to the third holding pipeline 20 to open, and the conveying of clean and high temperature inert gas is maintained for 3-5 minutes;

[0050] Step eleven, when the temperature of the material placing structure reaches 660 DEG C or above, the prepared aluminum amalgam in the reaction furnace 100 for preparing the alloy containing low boiling point components is emptied and cast into a shape.

[0051] In the embodiment, the mercury raw material is pure mercury or mercury amalgam containing mercury; the inert gas is a gas stable at a temperature below 700 DEG C and not easy to react with aluminum, such as nitrogen, inert gas, etc.; the rated working temperature of the preheater 17, the evaporator 14, the first holding pipeline 18, the second holding pipeline 19 and the third holding pipeline 20 should be set above the boiling point of mercury, so as to ensure that there is sufficient concentration of mercury in the first holding pipeline and the second holding pipeline 19, and avoid the condensation and accumulation of mercury in the pipeline during the conveying process.

[0052] The embodiment can be used to safely and massively prepare aluminum amalgam with uniform components; the embodiment is also applicable to the preparation of an alloy by melting method, in which the melting point of one component is higher than the boiling point of the other component, to avoid the explosion easily occurring during the preparation.

[0053] The principles and implementation modes of the present application are described in the specific examples in the specification, and the above description of the examples is only used to help understand the method of the present application and its core idea; meanwhile, for those skilled in the art, the specific implementation modes and application ranges will be changed according to the idea of the present application. In conclusion, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A preparation apparatus, characterized in that: This includes inert gas storage structures, preheaters, evaporators, melting furnaces, and reaction furnaces for the preparation of alloys containing low-boiling-point components; The reaction furnace for preparing alloys containing low-boiling-point components is used for melting aluminum-mercury alloys. It includes a furnace body and a feeding structure. The furnace body is provided with a furnace chamber. The furnace body has a feed inlet, an exhaust port and a discharge structure that communicate with the furnace chamber. The feed inlet is used to convey materials other than low-boiling-point components into the furnace chamber. The feeding structure is used to uniformly convey low-boiling-point components into the main component materials in the furnace chamber. The discharge structure is used to discharge the smelted alloy. The inert gas storage structure is used to store inert gases; the evaporator is used to heat low-boiling-point component materials; the smelting furnace is used to smelt main component materials; the inert gas storage structure is connected to the preheater via a first pipeline; the preheater is connected to the evaporator via a first insulated pipeline; the evaporator is connected to the feeding structure of the reaction furnace for preparing alloys containing low-boiling-point components via a second insulated pipeline; the preheater is connected to the feeding structure of the reaction furnace for preparing alloys containing low-boiling-point components via a third insulated pipeline; and the smelting furnace is connected to the inlet of the reaction furnace for preparing alloys containing low-boiling-point components. Heaters and valves are installed on the first, second, and third insulated pipes; The method for preparing aluminum-mercury alloys using a preparation apparatus includes the following steps: Step 1: Set up the preparation apparatus; Step 2: Calculate the required amount of mercury based on the mass of aluminum added to the reactor for the preparation of alloys containing low-boiling-point components, and calculate the amount and flow rate of inert gas required to transport mercury based on the preparation time requirements. Step 3: Put the weighed aluminum into the melting furnace for melting. According to the expected time for the reaction furnace to heat up to the rated temperature for the preparation of alloys containing low boiling point components, start the furnace at the appropriate time to preheat the reaction furnace for the preparation of alloys containing low boiling point components, and heat the second heat preservation pipeline to 360±40℃. Step 4: Add the weighed mercury into the evaporator and check the airtightness of the second insulation pipe from the evaporator to the reaction furnace used for preparing alloys containing low-boiling-point components. Step 5: Based on the expected aluminum conversion time and the time required for heating, turn on the heaters of the preheater and the third insulation pipeline as appropriate; when the third insulation pipeline reaches 400±40℃, open the valve of the third insulation pipeline for the inert gas directly connected to the reactor for the preparation of alloys containing low-boiling-point components, blow out the air in the third insulation pipeline, and temporarily close the third insulation pipeline for the inert gas directly connected to the reactor for the preparation of alloys containing low-boiling-point components. Turn on the evaporator for heating as appropriate based on the expected material feeding time. Step 6: After the aluminum is melted, the surface oxide slag is removed, and the molten aluminum is transferred to a reaction furnace for the preparation of alloys containing low-boiling-point components. Step 7: In the reaction furnace used for the preparation of alloys containing low-boiling-point components, the molten aluminum is kept at a temperature of 35±15℃ above the melting point of aluminum. The agitator is turned on to make the oxide slag at the bottom float to the surface. The surface slag is then removed. After the slag removal is completed, the feed port is closed. Step 8: Turn on the inert gas preheater for heating, and at the same time turn on the heater of the first insulated pipeline to heat and insulate the first insulated pipeline, and turn on the evaporator to heat the mercury. Step 9: After the evaporator reaches the rated temperature, open the valve of the furnace for preparing alloys containing low-boiling-point components through the preheater, evaporator, and second insulation pipeline, and feed the inert gas into the furnace. Mercury is then supplied to the furnace for preparing alloys containing low-boiling-point components. Step 10: Estimate the start time of aluminum casting and the heating time of the feeding structure, and begin heating the feeding structure accordingly. Once the predetermined feeding time is reached, take a sample of molten aluminum-mercury alloy from the reactor used for preparing alloys containing low-boiling-point components, and test its composition. Take samples at regular intervals until the mercury content meets the requirements. If the composition meets the requirements, stop heating the evaporator and switch the valve for conveying inert gas to the open state of the third insulation pipeline, maintaining the conveying of clean, high-temperature inert gas for 3-5 minutes. Step 11: When the temperature of the material discharge structure reaches above 660℃, the aluminum-mercury alloy produced in the reaction furnace used for preparing alloys containing low-boiling-point components is vented and cast into shape.

2. The preparation apparatus according to claim 1, characterized in that: The feeding structure includes a permeable brick and a conveying pipeline. The permeable brick is embedded in the bottom of the furnace. One end of the conveying pipeline is connected to the permeable brick, and the other end of the conveying pipeline is used to connect to a low-boiling-point component material storage structure and an inert gas storage structure.

3. The preparation apparatus according to claim 1, characterized in that: It also includes a stirrer, the stirring structure of which is located in the furnace chamber and the driving structure of which is located outside the furnace chamber.

4. The preparation apparatus according to claim 1, characterized in that: Heating structures are provided in both the furnace chamber and the feeding structure.

5. The preparation apparatus according to claim 1, characterized in that: The discharge structure includes a discharge pipe, one end of which is located at the bottom of the furnace and communicates with the furnace, and the other end of which communicates with the outside of the furnace body.

6. The preparation apparatus according to claim 5, characterized in that: The furnace body has a stopper rod mounting hole, which is connected to the furnace chamber. The position of the stopper rod mounting hole corresponds to one end of the discharge pipe. The stopper rod mounting hole is used to place the stopper rod, and one end of the stopper rod is located in one end of the discharge pipe.

7. The preparation apparatus according to claim 1, characterized in that: An emergency discharge port is provided on the furnace body, which is located at the lower part of the furnace body and communicates with the furnace chamber; a sampling port is provided on the furnace body, which communicates with the furnace chamber.

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