A brass ingot smelting furnace and method with intelligent temperature control function

Abstract

This invention discloses a brass ingot smelting furnace and method with intelligent temperature control, relating to the field of non-ferrous metal alloy manufacturing technology. The brass ingot smelting furnace includes a smelting unit, a funnel, a crystallizer, a casting platform, a tilting mechanism, and a base. The tilting mechanism is fastened to the base. The smelting unit is connected to the funnel. The smelting unit is used to uniformly melt zinc and copper together. The funnel is used for material discharge. The crystallizer is connected to the casting platform, and the inlet of the crystallizer corresponds to the outlet of the funnel. During the smelting operation, copper and zinc materials are first added to the smelting unit and heated and melted separately. Then, the molten copper and zinc are mixed together. After the mixing and smelting are completed, the tilting mechanism is activated, causing the smelting unit to rotate at a certain angle, so that the molten metal flows out through the funnel and is injected into the crystallizer. Finally, the molten metal is cooled and solidified in the casting platform.

Description

Technical Field

[0001] This invention relates to the field of non-ferrous metal alloy manufacturing technology, specifically a brass ingot smelting furnace and method with intelligent temperature control function. Background Technology

[0002] As a copper-zinc alloy, brass suffers from several drawbacks. Zinc's boiling point is lower than copper's melting temperature. If solid zinc is directly added to molten copper at high temperatures, the zinc will volatilize and oxidize rapidly, resulting in waste of raw materials and alloy composition segregation, severely impacting the performance of the ingot. Current brass smelting methods have several shortcomings:

[0003] 1. Since the boiling point of zinc is significantly lower than that of copper, when solid zinc is directly added to molten copper in traditional processes, the zinc block will form zinc vapor in the high-temperature environment due to the excessively high temperature. Zinc vapor is very easy to escape and easily generates zinc oxide dross, resulting in waste of raw materials and environmental pollution.

[0004] 2. The temperature control accuracy is low. Existing furnaces rely on manual temperature measurement, resulting in large temperature fluctuations in the molten copper, making it difficult to accurately maintain the optimal fusion temperature of zinc and copper.

[0005] 3. Poor mixing uniformity: Traditional processes often place molten zinc or zinc blocks directly onto the surface of molten copper. However, zinc has a low density and is difficult to mix with molten copper, requiring constant stirring, which further increases the probability of zinc vapor volatilization. Summary of the Invention

[0006] The purpose of this invention is to provide a brass ingot smelting furnace and method with intelligent temperature control function to solve the problems raised in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a brass ingot smelting furnace includes a smelting unit, a funnel, a crystallizer, a casting platform, a tilting mechanism, and a base. The tilting mechanism is fastened to the base. The smelting unit is connected to the funnel. The smelting unit is used to uniformly melt zinc and copper together. The funnel is used for discharging material. The crystallizer is connected to the casting platform. The inlet of the crystallizer corresponds to the outlet of the funnel.

[0008] The base is placed on the ground to provide a stable working environment for each mechanism. When the smelting operation is carried out, copper and zinc materials are first added to the smelting unit and heated and melted separately. Then, the molten copper and zinc are mixed together. After the mixing and smelting are completed, the tilting mechanism is activated to make the smelting unit rotate at a certain angle, so that the molten metal flows out through the funnel and is injected into the crystallizer. Finally, the molten metal is cooled and formed in the casting platform.

[0009] The smelting unit comprises a frame, a copper smelting furnace, a zinc smelting furnace, a temperature control assembly, a dynamic mixing assembly and a zinc liquid injection assembly, the copper smelting furnace and the zinc smelting furnace are fixedly connected with the frame, the temperature control assembly is used for controlling the temperature in the copper smelting furnace and the zinc smelting furnace, the dynamic mixing assembly is fixedly connected with the copper smelting furnace, the dynamic mixing assembly is used for uniformly mixing the zinc liquid and the copper liquid, and the zinc liquid injection assembly is used for connecting the copper smelting furnace and the zinc smelting furnace.

[0010] Since the boiling point of zinc is significantly lower than the smelting temperature of copper, if the metallic zinc is directly added into the molten copper liquid, the temperature of the zinc material will be too high. By dividing the smelting unit into the copper smelting furnace and the zinc smelting furnace, the copper liquid and the zinc liquid are physically isolated, the copper material is pre-melted and cooled to the target temperature, then the zinc liquid injection assembly is started to inject the zinc liquid into the copper liquid, and the dynamic mixing assembly is used to mix the zinc liquid and the copper liquid, so as to promote the speed of smelting and mixing.

[0011] The temperature control assembly comprises a thermocouple sensor and a heater, the thermocouple sensor is arranged on the inner wall of the copper smelting furnace and the zinc smelting furnace, the thermocouple sensor is connected with a control system, the control system is used for dynamically adjusting the heating power of the heater according to the temperature in the furnace, and the heater is arranged in the furnace body of the copper smelting furnace and the zinc smelting furnace.

[0012] When the copper liquid and the zinc liquid are heated, the temperature in the copper smelting furnace and the zinc smelting furnace is monitored in real time through the thermocouple sensor, and the heating power of the heater is adjusted in real time according to the detection data, so that the temperature of the zinc liquid and the copper liquid is maintained in a suitable range. When mixing, if the temperature of the copper liquid exceeds the target temperature, a cooling program is automatically triggered, and a corresponding water cooling system is arranged in the copper smelting furnace to cool the copper liquid. This is a prior art and will not be described here.

[0013] The dynamic mixing assembly comprises an electromagnetic stirrer and a gas supply pump, the electromagnetic stirrer is fixedly connected with the copper smelting furnace, the electromagnetic stirrer is located at the bottom of the copper smelting furnace, the gas supply pump is fixedly connected with the frame, the gas supply pump is used for injecting inert gas into the copper smelting furnace, and the copper smelting furnace is provided with a gas guide channel which is communicated with the outlet of the gas supply pump.

[0014] When mixing, the dynamic mixing assembly is started, the electromagnetic stirrer works to generate a horizontal rotating magnetic field, so that the metal liquid rotates in the furnace body, thereby promoting the mixing of the zinc liquid and the copper liquid. In addition, inert gas is injected into the copper smelting furnace through the cooperation of the gas supply pump and the gas guide channel to form a certain number of bubbles, the metal liquid is stirred through the bubbles, and the mixing efficiency is further promoted. The gas guide channel is inclined downward to guide the gas flow, which can prolong the moving distance of the bubbles in the metal liquid, thereby promoting the mixing.

[0015] The zinc liquid injection assembly comprises a graphite conduit and a siphon pump, the inlet of the siphon pump is communicated with the zinc smelting furnace, the outlet of the siphon pump is communicated with the graphite conduit, the graphite conduit is communicated with the copper smelting furnace, and the outlet of the graphite conduit is located at a position of more than or equal to 200 mm below the copper liquid surface.

[0016] The graphite conduit adopts a siphon structure and is coated with a composite ceramic coating on the inner wall to prolong the service life; the zinc smelting furnace is located higher than the copper liquid surface in the copper smelting furnace, so that when the zinc liquid is injected, the siphon pump only needs to introduce the zinc liquid, and under the action of siphon, the zinc liquid will be continuously injected into the copper liquid, and the outlet of the graphite conduit is located below the copper liquid surface, which can reduce the contact of the zinc liquid with air, thereby avoiding oxidation.

[0017] The outlet of the graphite conduit is provided with a dispersion assembly, the dispersion assembly is used for uniformly injecting the zinc liquid into the copper liquid, the dispersion assembly comprises a connecting disc, a rotating wheel, a distribution head and a spiral pipe, the outlet of the gas supply pump is provided with a gas supply branch pipe, the gas supply branch pipe is communicated with the spiral pipe; the connecting disc is tightly connected with the graphite conduit, the rotating wheel is rotationally connected with the connecting disc, the distribution head is tightly connected with the rotating wheel, the spiral pipe is tightly connected with the connecting disc, the connecting disc is provided with a movable cavity, and the blades of the rotating wheel are located in the movable cavity.

[0018] When the zinc liquid is injected into the copper liquid through the graphite conduit, direct injection will cause the zinc liquid to gather in one place, which is not conducive to subsequent mixing, the dispersion assembly is used to disperse the injected zinc liquid, the dispersion assembly is powered by compressed inert gas, high-speed airflow is injected into the spiral pipe through the gas supply branch pipe, thereby impacting the blades of the rotating wheel in the movable cavity, so that the rotating wheel rotates around the connecting disc, thereby driving the distribution head to rotate, under the action of centrifugal force, the zinc liquid is flung to the periphery, thereby increasing the contact area of the zinc liquid and the copper liquid and promoting mixing.

[0019] The spiral pipe is provided with a plurality of inclined outlets, the inclined outlets are communicated with the movable cavity, the distribution head is provided with a liquid outlet and a gas outlet, the liquid outlet is communicated with the graphite conduit, and the gas outlet is communicated with the movable cavity.

[0020] The plurality of inclined outlets can guide the airflow, thereby ensuring the impact force of the airflow on the rotating wheel, the airflow after driving the rotating wheel to rotate can flow out together with the zinc liquid flowing out through the gas outlet and the liquid outlet, and the mixing effect of the zinc liquid and the copper liquid is further promoted by combining airflow disturbance and rotation dispersion.

[0021] The cross-sectional area of the spiral pipe gradually decreases along the airflow direction.

[0022] The gradually decreasing cross-section ensures that the airflow speed remains basically constant in the entire circumferential direction of the spiral pipe, and the constant speed means that the airflow can uniformly impact the blades of the rotating wheel, thereby ensuring the stability of the rotation of the distribution head.

[0023] The pouring mechanism comprises a rotating seat, a rotating shaft and a fixed seat, the rotating seat is fixedly connected with the base, the rotating shaft is in transmission connection with the rotating seat, one end of the fixed seat is fixedly connected with the rotating shaft, and the other end of the fixed seat is fixedly connected with the frame.

[0024] During casting, the rotating seat is actuated to rotate the rotating shaft by a certain angle, so that the rotating seat is rotated to drive the frame to rotate, so that the funnel arranged in an inclined manner is placed horizontally, and the mixed molten metal flows into the crystallizer for casting.

[0025] The process comprises the following steps:

[0026] S1. Copper smelting and temperature control: copper materials are added into a copper smelting furnace, heated to 1150-1200 DEG C to melt, and the copper liquid is cooled to the target temperature through the temperature control assembly, and the target temperature is 1100-1150 DEG C;

[0027] S2. Zinc smelting and protection: zinc materials are melted into zinc liquid in a zinc smelting furnace, the temperature is controlled at 450-480 DEG C, and the surface is covered with a zinc chloride flux layer;

[0028] S3. Siphon injection of zinc liquid: the zinc liquid flows into the graphite pipe through the siphon pump and is injected from the bottom of the copper liquid at a certain flow rate;

[0029] S4. Dynamic mixing: the electromagnetic stirrer is started to generate a horizontal rotating magnetic field, argon micro-bubbles are introduced through the gas supply pump to promote mixing, and the mixing degree of the zinc liquid and the copper liquid is improved through the dispersion assembly;

[0030] S5. Casting: the copper liquid flows into the crystallizer through the funnel and is finally cooled and formed on the casting platform.

[0031] Compared with the prior art, the beneficial effects of the present application are:

[0032] 1. By physically separating the smelting unit into independent copper smelting furnace and zinc smelting furnace, the problem of violent evaporation, burning loss and composition segregation caused by direct mixing of zinc into copper liquid due to low boiling point of zinc is fundamentally solved; the temperature control assembly realizes accurate dynamic regulation of the temperature of the copper liquid, ensures that the copper liquid is actively cooled to the target temperature of 1100-1150 DEG C before zinc injection, and creates conditions for safe mixing; the zinc liquid injection assembly adopts the siphon principle combined with the graphite pipe deeply buried under the copper liquid surface, cooperates with the high design of the zinc smelting furnace, and realizes the stable and controllable self-bottom injection of the zinc liquid into the copper liquid in an inert environment; this combination strategy of physical isolation, accurate temperature control and bottom injection maximizes the uniformity of the alloy melt composition and batch stability, and improves the quality of casting.

[0033] 2、Innovative multi-stage dynamic mixing mechanism greatly improves mixing efficiency and uniformity, the system integrates electromagnetic, pneumatic, mechanical centrifugal three mixing technologies, electromagnetic stirring: the electromagnetic stirrer at the bottom of the furnace generates a horizontal rotating magnetic field, which drives the whole melt to rotate, forming macroscopic convection; inert gas micro-bubble disturbance: the gas supply pump injects argon into the melt through the inclined downward gas guide channel, forming an upward bubble flow, which prolongs the bubble path to enhance the microscopic shear agitation of the melt; centrifugal dispersion injection: the dispersion assembly at the zinc liquid injection end drives the runner to rotate at high speed by compressed inert gas, so that the zinc liquid is fine and radially thrown out by the distribution head under the action of centrifugal force, which instantaneously increases the contact area of zinc liquid and copper liquid, realizes high efficiency, rapid and uniform fusion of zinc and copper melt through the mechanism of dispersion and mixing first, and combines with the previous two stages of stirring, which significantly shortens the mixing time and improves the alloy homogenization degree. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the application;

[0035] Figure 2 It is a schematic diagram of the pouring mechanism of the application;

[0036] Figure 3 It is a partial sectional view of the smelting unit of the application;

[0037] Figure 4 It is an enlarged view of A of Figure 3

[0038] Figure 5 It is an enlarged view of B of Figure 3

[0039] Figure 6 It is a schematic diagram of the dispersion assembly of the application;

[0040] Figure 7 It is a schematic diagram of the dispersion assembly of the application;

[0041] In the figure: 1, smelting unit; 11, frame; 12, copper smelting furnace; 121, gas guide channel; 13, zinc smelting furnace; 14, temperature control assembly; 141, thermocouple sensor; 142, heater; 15, dynamic mixing assembly; 151, electromagnetic stirrer; 152, gas supply pump; 153, gas supply branch pipe; 16, zinc liquid injection assembly; 161, graphite pipe; 162, siphon pump; 17, dispersion assembly; 171, connecting disc; 1711, movable cavity; 172, runner; 173, distribution head; 1731, liquid outlet; 1732, gas outlet; 174, spiral pipe; 1741, inclined outlet; 2, hopper; 3, crystallizer; 4, casting platform; 5, pouring mechanism; 51, rotating seat; 52, rotating shaft; 53, fixed seat; 6, base. DETAILED DESCRIPTION ​​

[0042] 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.

[0043] Example: Figures 1-7 As shown, the present invention provides a brass ingot smelting furnace and method with intelligent temperature control function. The brass ingot smelting furnace includes a smelting unit 1, a funnel 2, a crystallizer 3, a casting platform 4, a tilting mechanism 5, and a base 6. The tilting mechanism 5 is fastened to the base 6. The smelting unit 1 is connected to the funnel 2. The smelting unit 1 is used to uniformly melt zinc and copper together. The funnel 2 is used for discharging material. The crystallizer 3 is connected to the casting platform 4. The inlet of the crystallizer 3 corresponds to the outlet of the funnel 2.

[0044] The base 6 is placed on the ground to provide a stable working environment for each mechanism. When the smelting operation is carried out, copper and zinc materials are first added to the smelting unit 1 and heated and melted separately. Then, the molten copper and zinc liquids are mixed together. After the mixing and smelting are completed, the tilting mechanism 5 is activated to make the smelting unit 1 rotate at a certain angle, so that the molten metal liquid flows out through the funnel 2 and is injected into the crystallizer 3. Finally, the molten metal liquid is cooled and formed in the casting platform 4.

[0045] The smelting unit 1 includes a frame 11, a copper smelting furnace 12, a zinc smelting furnace 13, a temperature control component 14, a dynamic mixing component 15, and a zinc liquid injection component 16. The copper smelting furnace 12 and the zinc smelting furnace 13 are fastened to the frame 11. The temperature control component 14 is used to control the temperature inside the copper smelting furnace 12 and the zinc smelting furnace 13. The dynamic mixing component 15 is fastened to the copper smelting furnace 12 and is used to uniformly mix the zinc liquid and the copper liquid. The zinc liquid injection component 16 is used to connect the copper smelting furnace 12 and the zinc smelting furnace 13.

[0046] Since the boiling point of zinc is significantly lower than that of copper, directly adding metallic zinc to molten copper would result in an excessively high temperature of the zinc. By dividing the smelting unit 1 into a copper smelting furnace 12 and a zinc smelting furnace 13, the copper and zinc are physically isolated. The copper is pre-melted and cooled to the target temperature. Then, the zinc injection component is activated to inject the zinc into the copper. The zinc and copper are mixed by the dynamic mixing component 15 to accelerate the smelting and mixing process.

[0047] The temperature control assembly 14 includes a thermocouple sensor 141 and a heater 142. The thermocouple sensor 141 is installed on the inner wall of the copper smelting furnace 12 and the zinc smelting furnace 13. The thermocouple sensor 141 is connected to an external control system. The control system is used to dynamically adjust the heating power of the heater 142 according to the furnace temperature. The heater 142 is installed inside the furnace body of the copper smelting furnace 12 and the zinc smelting furnace 13.

[0048] When heating the copper and zinc molten metals, the temperature inside the copper smelting furnace 12 and the zinc smelting furnace 13 is monitored in real time by thermocouple sensor 141, and the heating power of heater 142 is adjusted in real time according to the detection data, so that the temperature of the zinc and copper molten metals is maintained within a suitable range. If the temperature of the copper molten metal exceeds the target temperature during mixing, a cooling program is automatically triggered. The copper smelting furnace 12 is equipped with a corresponding water cooling system to cool the copper molten metal. This is existing technology and will not be described in detail here.

[0049] The dynamic mixing assembly 15 includes an electromagnetic stirrer 151 and an air supply pump 152. The electromagnetic stirrer 151 is fixedly connected to the copper smelting furnace 12 and is located at the bottom of the copper smelting furnace 12. The air supply pump 152 is fixedly connected to the frame 11 and is used to inject inert gas into the copper smelting furnace 12. The copper smelting furnace 12 is provided with a guide gas channel 121, which is connected to the outlet of the air supply pump 152.

[0050] During mixing, the dynamic mixing component 15 is activated, and the electromagnetic stirrer 151 generates a horizontal rotating magnetic field, causing the molten metal to rotate within the furnace, thereby promoting the mixing of zinc and copper. In addition, through the cooperation of the gas supply pump 152 and the air guide channel 121, inert gas is injected into the copper smelting furnace 12, forming a certain number of bubbles. These bubbles agitate the molten metal, further promoting mixing efficiency. The air guide channel 121 is tilted downwards to guide the airflow, which can extend the distance that the bubbles travel within the molten metal, thereby promoting mixing.

[0051] The zinc liquid injection assembly 16 includes a graphite conduit 161 and a siphon pump 162. The inlet of the siphon pump 162 is connected to the zinc smelting furnace 13, and the outlet of the siphon pump 162 is connected to the graphite conduit 161. The graphite conduit 161 is connected to the copper smelting furnace 12, and the outlet of the graphite conduit 161 is located ≥200mm below the copper liquid surface.

[0052] The graphite conduit 161 adopts a siphon structure and is coated with a composite ceramic coating on its inner wall to extend its service life. The zinc smelting furnace 13 is positioned higher than the copper molten surface in the copper smelting furnace 12. Thus, when zinc molten material is injected, the siphon pump 162 only needs to introduce zinc molten material, and under the action of the siphon, the zinc molten material will be continuously injected into the copper molten material. The outlet of the graphite conduit 161 is below the copper molten material surface, which can reduce the contact between the zinc molten material and air, thereby avoiding oxidation.

[0053] A dispersion assembly 17 is provided at the outlet of the graphite conduit 161. The dispersion assembly 17 is used to uniformly inject zinc liquid into copper liquid. The dispersion assembly 17 includes a connecting plate 171, a rotating wheel 172, a distributing head 173, and a spiral tube 174. The outlet of the air supply pump 152 is provided with an air supply branch pipe 153, which is connected to the spiral tube 174. The connecting plate 171 is fixedly connected to the graphite conduit 161, the rotating wheel 172 is rotatably connected to the connecting plate 171, the distributing head 173 is fixedly connected to the rotating wheel 172, and the spiral tube 174 is fixedly connected to the connecting plate 171. The connecting plate 171 is provided with a movable cavity 1711, and the blades of the rotating wheel 172 are located in the movable cavity 1711.

[0054] When molten zinc is injected into molten copper through graphite conduit 161, direct injection will cause the molten zinc to accumulate in one place, which is not conducive to subsequent mixing. The injected molten zinc is dispersed by dispersion component 17. Dispersion component 17 is powered by compressed inert gas. The high-speed airflow is injected into spiral tube 174 through air supply branch pipe 153, thereby impacting the blades of rotor 172 in moving chamber 1711, causing rotor 172 to rotate around connecting plate 171, thereby driving distribution head 173 to rotate. Under the action of centrifugal force, the molten zinc is thrown in all directions, thereby increasing the contact area between molten zinc and molten copper and promoting mixing.

[0055] The spiral tube 174 is provided with several inclined outlets 1741, which are connected to the movable cavity 1711. The dispensing head 173 is provided with a liquid outlet 1731 and an air outlet 1732. The liquid outlet 1731 is connected to the graphite conduit 161, and the air outlet 1732 is connected to the movable cavity 1711.

[0056] Several inclined outlets 1741 can guide the airflow, thereby ensuring the impact force of the airflow on the rotor 172. The airflow after driving the rotor 172 to rotate can flow out together with the zinc liquid flowing out through the air outlet 1732 and the liquid outlet 1731. By combining airflow disturbance and rotation dispersion, the mixing effect of zinc liquid and copper liquid is further promoted.

[0057] The cross-sectional area of ​​the spiral tube 174 gradually decreases along the airflow direction.

[0058] The gradually decreasing cross-section ensures that the airflow velocity remains basically constant along the entire circumference of the spiral tube 174. The constant velocity means that the airflow can impact the blades of the rotor 172 evenly, thereby ensuring the stability of the rotation of the distributor head 173.

[0059] The tilting mechanism 5 includes a rotating seat 51, a rotating shaft 52, and a fixed seat 53. The rotating seat 51 is fastened to the base 6, the rotating shaft 52 is driven to the rotating seat 51, one end of the fixed seat 53 is fastened to the rotating shaft 52, and the other end of the fixed seat 53 is fastened to the frame 11.

[0060] During casting, the rotating seat 51 moves, causing the rotating shaft 52 to rotate at a certain angle, which in turn causes the rotating seat 51 to rotate, thereby causing the frame 11 to rotate, thus placing the inclined funnel 2 horizontally, so that the mixed molten metal flows into the crystallizer 3 for casting.

[0061] The process includes the following steps:

[0062] S1. Copper smelting and temperature control: Add copper material to copper smelting furnace 12 and heat it to 1150-1200℃ to melt it. Cool the copper liquid to the target temperature of 1100-1150℃ through temperature control component 14.

[0063] S2. Zinc smelting and protection: The zinc material is melted into liquid zinc in zinc smelting furnace 13, with the temperature controlled at 450-480℃, and the surface is covered with a zinc chloride flux layer;

[0064] S3. Siphon injection of zinc liquid: Zinc liquid flows into graphite conduit 161 via siphon pump 162 and is injected from the bottom of copper liquid at a certain flow rate;

[0065] S4. Dynamic mixing: The electromagnetic stirrer 151 is activated to generate a horizontal rotating magnetic field. At the same time, argon microbubbles are introduced through the gas supply pump 152 to promote mixing, and the mixing degree of zinc liquid and copper liquid is improved through the dispersion component 17.

[0066] S5. Casting: The molten copper flows into the crystallizer 3 through the funnel 2 and is finally cooled and formed by the casting platform 4.

[0067] The working principle of this invention is as follows: First, copper and zinc materials are physically isolated and smelted separately in independent copper smelting furnace 12 and zinc smelting furnace 13. After the copper melts at 1150-1200℃, it is actively cooled to the target temperature of 1100-1150℃ by the temperature control component 14 to avoid violent volatilization of zinc during subsequent mixing. The zinc is melted at a low temperature of 450-480℃, and its surface is covered with a zinc chloride flux layer to prevent oxidation. Next, the zinc liquid is injected into the copper smelting furnace 12 through a siphon-driven zinc liquid injection component. Due to the high-level design of the zinc smelting furnace 13, a liquid level difference is formed. The siphon pump 162 introduces the zinc liquid into the graphite conduit 161. The zinc liquid is injected from the bottom of the copper liquid at a controllable flow rate, greatly reducing contact with air. Simultaneously, a triple dynamic mixing process is initiated: an electromagnetic stirrer generates a horizontal rotating magnetic field at the bottom of the copper smelting furnace, driving macroscopic convection in the melt; a gas supply pump injects argon gas into the melt through an inclined airflow channel, forming a rising microbubble cluster, which enhances microscopic agitation through shear force; and a dispersion component 17 uses a diverted stream of compressed inert gas to impact the spiral tube, driving the rotor 172 to rotate at high speed within the active chamber 1711, causing the molten zinc to be radially ejected through the centrifugal distributor 173, instantly expanding the contact area between zinc and copper. After mixing is complete, a tilting mechanism drives the smelting unit to flip, and the molten brass alloy flows smoothly into the crystallizer through a funnel, finally cooling and solidifying on the casting platform.

[0068] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A brass ingot smelting furnace with intelligent temperature control function, characterized in that: The brass ingot smelting furnace comprises a smelting unit (1), a hopper (2), a crystallizer (3), a casting platform (4), a pouring mechanism (5) and a base (6), the pouring mechanism (5) is in fastening connection with the base (6), the smelting unit (1) is connected with the hopper (2), the smelting unit (1) is used for uniformly smelting zinc and copper together, the hopper (2) is used for discharging, the crystallizer (3) is in communication with the casting platform (4), and the inlet of the crystallizer (3) corresponds to the outlet of the hopper (2); The smelting unit (1) comprises a frame (11), a copper smelting furnace (12), a zinc smelting furnace (13), a temperature control assembly (14), a dynamic mixing assembly (15) and a zinc liquid injection assembly (16), the copper smelting furnace (12) and the zinc smelting furnace (13) are in fastening connection with the frame (11), the temperature control assembly (14) is used for controlling the temperature in the copper smelting furnace (12) and the zinc smelting furnace (13), the dynamic mixing assembly (15) is in fastening connection with the copper smelting furnace (12), and the dynamic mixing assembly (15) is used for uniformly mixing zinc liquid and copper liquid, and the zinc liquid injection assembly (16) is used for connecting the copper smelting furnace (12) and the zinc smelting furnace (13); The dynamic mixing assembly (15) comprises an electromagnetic stirrer (151) and a gas supply pump (152), the electromagnetic stirrer (151) is in fastening connection with the copper smelting furnace (12), the electromagnetic stirrer (151) is located at the bottom of the copper smelting furnace (12), the gas supply pump (152) is in fastening connection with the frame (11), and the gas supply pump (152) is used for injecting inert gas into the copper smelting furnace (12), the copper smelting furnace (12) is provided with a gas guide channel (121), and the gas guide channel (121) is in communication with the outlet of the gas supply pump (152); The zinc liquid injection assembly (16) comprises a graphite guide pipe (161) and a siphon pump (162), the inlet of the siphon pump (162) is in communication with the zinc smelting furnace (13), the outlet of the siphon pump (162) is in communication with the graphite guide pipe (161), the graphite guide pipe (161) is in communication with the copper smelting furnace (12), and the outlet of the graphite guide pipe (161) is located at a position ≥200mm below the copper liquid surface; The outlet of the graphite guide pipe (161) is provided with a dispersion assembly (17), the dispersion assembly (17) is used for uniformly injecting zinc liquid into copper liquid, the dispersion assembly (17) comprises a connecting disc (171), a rotating wheel (172), a distribution head (173) and a spiral pipe (174), the outlet of the gas supply pump (152) is provided with a gas supply branch pipe (153), the gas supply branch pipe (153) is in communication with the spiral pipe (174); the connecting disc (171) is in fastening connection with the graphite guide pipe (161), the rotating wheel (172) is in rotary connection with the connecting disc (171), the distribution head (173) is in fastening connection with the rotating wheel (172), the spiral pipe (174) is in fastening connection with the connecting disc (171), the connecting disc (171) is provided with a movable cavity (1711), and the blades of the rotating wheel (172) are located in the movable cavity (1711); A plurality of inclined outlets (1741) are arranged on the spiral pipe (174), and the inclined outlets (1741) are communicated with the movable cavity (1711); the dispensing head (173) is provided with a liquid outlet (1731) and a gas outlet (1732), the liquid outlet (1731) is communicated with the graphite pipe (161), and the gas outlet (1732) is communicated with the movable cavity (1711).

2. The brass ingot melting furnace with intelligent temperature control function according to claim 1, characterized in that: The temperature control assembly (14) comprises a thermocouple sensor (141) and a heater (142), the thermocouple sensor (141) is arranged on the inner wall of the copper smelting furnace (12) and the zinc smelting furnace (13), the thermocouple sensor (141) is connected with a control system, the control system is used for dynamically adjusting the heating power of the heater (142) according to the temperature in the furnace, and the heater (142) is arranged in the furnace body of the copper smelting furnace (12) and the zinc smelting furnace (13).

3. The brass ingot melting furnace with intelligent temperature control function according to claim 1, characterized in that: The cross-sectional area of the spiral pipe (174) gradually decreases along the direction of the airflow.

4. The brass ingot melting furnace with intelligent temperature control function according to claim 1, characterized in that: The pouring mechanism (5) comprises a rotating seat (51), a rotating shaft (52) and a fixed seat (53), the rotating seat (51) is tightly connected with the base (6), the rotating shaft (52) is in transmission connection with the rotating seat (51), one end of the fixed seat (53) is tightly connected with the rotating shaft (52), and the other end of the fixed seat (53) is tightly connected with the frame (11).

5. The process as claimed in claim 1, wherein the brass ingot melting furnace with intelligent temperature control function is characterized in that: The process comprises the following steps: S1. Copper smelting and temperature control: copper materials are added into the copper smelting furnace (12), heated to 1150-1200 DEG C to melt, and the copper liquid is cooled to the target temperature by the temperature control assembly (14), and the target temperature is 1100-1150 DEG C; S2. Zinc smelting and protection: zinc materials are melted into zinc liquid in the zinc smelting furnace (13), and the temperature is controlled at 450-480 DEG C, and the surface is covered with a zinc chloride flux layer; S3. Siphon injection of zinc liquid: the zinc liquid flows into the graphite pipe (161) through the siphon pump (162) and is injected from the bottom of the copper liquid at a certain flow rate; S4. Dynamic mixing: the electromagnetic stirrer (151) is started to generate a horizontal rotating magnetic field, argon micro-bubbles are introduced through the gas supply pump (152) to promote mixing, and the mixing degree of the zinc liquid and the copper liquid is improved through the dispersion assembly (17); S5. Casting forming: the copper liquid flows into the crystallizer (3) through the funnel (2) and is finally cooled and formed through the casting platform (4).

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