A furnace for melting aluminum rods

Abstract

This utility model discloses an aluminum rod melting furnace. The utility model consists of a switch bracket and a furnace body. The switch bracket connects a horizontal bar and a vertical bar via a rotating shaft, with built-in bearings to reduce rotational friction and quick-release buckles for rapid connection between the horizontal and vertical bars. The bottom of the vertical bar is connected to the piston rod of a hydraulic assembly via a hinge, and the hydraulic cylinder drives the vertical bar to swing, controlling the opening and closing of the furnace cover. The furnace body is divided into a combustion zone and a heating zone. The inner wall is inlaid with a three-dimensional spiral-rising high-temperature resistant ceramic composite material fire guide channel, with the bottom end connected to the combustion zone's gas nozzle and the top end connected to the heating zone to form a heat flow circulation channel. The furnace cover is bolted to the switch bracket via a fixing plate, with a temperature probe embedded inside and a temperature display screen connected to the top. The spiral fire guide channel extends the heat flow path, and the catalytic layer promotes complete combustion of the gas, significantly improving thermal energy utilization and greatly reducing harmful gas emissions. The temperature probe is linked with a PLC controller to achieve high-precision closed-loop temperature control, preventing over-burning or under-burning of the aluminum rods.

Description

Technical Field

[0001] This utility model relates to the field of aluminum rod melting furnace technology, and in particular to an aluminum rod melting furnace. Background Technology

[0002] Aluminum is a silvery-white, lightweight metal. It is commonly produced in the form of rods, sheets, foils, powders, strips, and wires. In humid air, it can form an oxide film that prevents metal corrosion. Aluminum is the third most abundant metallic element in the Earth's crust, after oxygen and silicon. In the manufacturing process of aluminum parts, aluminum rods need to be melted to obtain molten aluminum, which is then used to produce aluminum parts through relevant equipment and processes.

[0003] Aluminum rod melting is a fundamental process in the aluminum processing industry. Traditional aluminum rod melting furnaces mostly adopt a straight-cylinder combustion chamber and a straight-line heat flow channel design, which has problems such as low thermal energy utilization and crude temperature control. On the one hand, the short heat flow path results in insufficient residence time of high-temperature gas in the furnace body, and a large amount of heat energy is not effectively transferred to the aluminum rod before being discharged with the exhaust gas, resulting in a thermal efficiency of generally less than 60%. On the other hand, temperature control relies on manual experience adjustment, and the fluctuation range often exceeds ±10℃, which can easily cause the aluminum rod to be over-burned or under-burned, directly affecting the quality of the molten aluminum and the subsequent processing performance, making it difficult to meet the industry's demand for efficient and precise production.

[0004] Therefore, an aluminum rod melting furnace was proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned shortcomings by providing an aluminum rod melting furnace.

[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: an aluminum rod melting furnace, comprising a furnace body, wherein the furnace body includes a switch support and a furnace body.

[0007] The switch bracket has an "L"-shaped structure and includes a horizontal bar and a vertical bar. The horizontal bar and the vertical bar are connected by a rotating shaft. The rotating shaft has a built-in bearing to reduce rotational friction. The horizontal bar is movably connected to the vertical bar by a connecting buckle, which is a quick-release snap-on structure. The switch bracket also includes a fixing frame and a hydraulic assembly. The fixing frame integrates a temperature probe and a fixing plate. The hydraulic assembly includes a hydraulic cylinder and a piston rod. The hydraulic cylinder is used to drive the vertical bar to swing up and down along the rotating shaft.

[0008] The furnace body is divided into a combustion zone and a heating zone. A spiral guide channel is embedded on the inner wall surface of the furnace body. The spiral guide channel has a three-dimensional spiral upward structure. The bottom end of the spiral guide channel extends to the combustion zone at the bottom of the furnace body, and the top end of the spiral guide channel is connected to the heating zone at the top of the furnace body to form a heat flow circulation channel. The spiral guide channel is made of high-temperature resistant ceramic composite material.

[0009] Furthermore, the piston rod end of the hydraulic assembly is connected to the bottom of the vertical rod via a hinge, the bottom of the hydraulic cylinder is fixed to the ground foundation, the hydraulic cylinder adjusts the swing angle of the vertical rod through hydraulic pressure to control the opening and closing of the furnace cover, and the surface of the vertical rod is provided with a high-temperature resistant coating.

[0010] Furthermore, the furnace body is provided with a furnace cover at the top, and the furnace cover is bolted to the fixing bracket of the switch bracket via a fixing plate. A hollow groove is opened inside the furnace cover, and the temperature probe is vertically embedded in the hollow groove. The top of the temperature probe extends to the outside of the furnace cover and is connected to the temperature display screen.

[0011] Furthermore, a gas nozzle is provided at the bottom of the combustion zone, the gas nozzle is connected to a natural gas pipeline, a solenoid valve is installed on the natural gas pipeline, and a thermocouple sensor is built into the temperature probe.

[0012] The beneficial effects of this utility model are reflected in:

[0013] This invention extends the heat flow path through a spiral fire guide and promotes complete combustion of fuel gas using a honeycomb catalytic layer, significantly improving heat energy utilization and greatly reducing harmful gas emissions, thus achieving efficient and environmentally friendly operation. Combined with the L-shaped switch bracket and the hydraulic component's quick-opening and closing mechanism, the furnace cover can be quickly opened and closed through a quick-release buckle and rotating shaft structure, effectively reducing heat loss and manual operation intensity, and improving the overall durability and production efficiency of the equipment. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention;

[0015] Figure 2 This is a schematic diagram of the switch bracket structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the spiral fire channel structure of this utility model.

[0017] In the picture:

[0018] 1. Furnace body; 2. Switch bracket; 201. Hydraulic components; 202. Fixing frame; 203. Fixing plate; 204. Temperature probe; 205. Temperature display screen; 206. Rotating shaft; 207. Connecting buckle; 3. Furnace body; 301. Furnace cover; 302. Spiral flame guide channel. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0020] Please see Figure 1-3 This utility model discloses an aluminum rod melting furnace, including a melting furnace body 1, which is composed of a switch bracket 2 and a furnace body 3.

[0021] The switch bracket 2 has an "L"-shaped structure, including a horizontal bar and a vertical bar. The horizontal bar and the vertical bar are connected by a rotating shaft 206, which has a built-in bearing to reduce rotational friction. The horizontal bar is movably connected to the vertical bar by a connecting buckle 207, which is a quick-release snap-fit ​​structure for easy assembly and maintenance. The switch bracket 2 also includes a fixing frame 202 and a hydraulic assembly 201. The fixing frame 202 integrates a temperature probe 204 and a fixing plate 203. The hydraulic assembly 201 includes a hydraulic cylinder and a piston rod. The hydraulic cylinder drives the vertical bar to swing up and down along the rotating shaft 206.

[0022] The furnace body 3 is internally divided into a combustion zone and a heating zone. A spiral fire guide 302 is embedded in the inner wall surface of the furnace body 3. The spiral fire guide 302 has a three-dimensional spiral structure, extending from its bottom end to the bottom combustion zone of the furnace body 3 and connecting to the top heating zone of the furnace body 3, forming a heat flow circulation channel. The spiral fire guide 302 is made of high-temperature resistant ceramic composite material.

[0023] The piston rod of the hydraulic assembly 201 is connected to the bottom of the vertical rod via a hinge, and the bottom of the hydraulic cylinder is fixed to the ground foundation. The hydraulic cylinder adjusts the swing angle of the vertical rod through hydraulic pressure to control the opening and closing of the furnace cover 301. The surface of the vertical rod is coated with a high-temperature resistant coating.

[0024] The furnace body 3 has a furnace cover 301 at the top, which is bolted to the fixing bracket 202 of the switch bracket 2 via a fixing plate 203. A hollow groove is opened inside the furnace cover 301, and a temperature probe 204 is vertically embedded in the hollow groove. The top of the temperature probe 204 extends to the outside of the furnace cover 301 and is connected to the temperature display screen 205.

[0025] A gas nozzle is located at the bottom of the combustion zone, connected to a natural gas pipeline. A solenoid valve is installed on the natural gas pipeline. A temperature probe 204 incorporates a thermocouple sensor. The sensor signal is processed by a PLC controller. The PLC controller output is connected to the solenoid valves of the hydraulic assembly 201 and the gas pipeline, forming a closed-loop control system. When the temperature exceeds a set threshold, the PLC controller triggers an alarm and simultaneously reduces the gas supply.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] Additionally, "multiple" refers to two or more.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An aluminum rod melting furnace, comprising a furnace body (1), wherein the furnace body (1) includes a switch support (2) and a furnace body (3), characterized in that: The switch bracket (2) has an "L" shaped structure. The switch bracket (2) includes a horizontal bar and a vertical bar. The horizontal bar and the vertical bar are connected by a rotating shaft (206). The rotating shaft (206) has a built-in bearing to reduce rotational friction. The horizontal bar is movably connected to the vertical bar by a connecting buckle (207). The connecting buckle (207) is a quick-release buckle structure. The switch bracket (2) also includes a fixing frame (202) and a hydraulic assembly (201). The fixing frame (202) integrates a temperature probe (204) and a fixing plate (203). The hydraulic assembly (201) includes a hydraulic cylinder and a piston rod. The hydraulic cylinder is used to drive the vertical bar to swing up and down along the rotating shaft (206). The furnace body (3) is divided into a combustion zone and a heating zone. The inner wall surface of the furnace body (3) is inlaid with a spiral fire guide channel (302). The spiral fire guide channel (302) has a three-dimensional spiral upward structure. The bottom end of the spiral fire guide channel (302) extends to the bottom combustion zone of the furnace body (3). The top end of the spiral fire guide channel (302) is connected to the top heating zone of the furnace body (3) to form a heat flow circulation channel. The spiral fire guide channel (302) is made of high temperature resistant ceramic composite material.

2. The aluminum rod melting furnace according to claim 1, characterized in that: The piston rod end of the hydraulic assembly (201) is connected to the bottom of the vertical rod via a hinge. The bottom of the hydraulic cylinder is fixed to the ground foundation. The hydraulic cylinder adjusts the swing angle of the vertical rod through hydraulic pressure to control the opening and closing of the furnace cover (301). The surface of the vertical rod is provided with a high-temperature resistant coating.

3. The aluminum rod melting furnace according to claim 1, characterized in that: The furnace body (3) is provided with a furnace cover (301) at the top. The furnace cover (301) is bolted to the fixing bracket (202) of the switch bracket (2) through a fixing plate (203). A hollow groove is opened inside the furnace cover (301). The temperature probe (204) is vertically embedded in the hollow groove. The top of the temperature probe (204) extends to the outside of the furnace cover (301) and is connected to the temperature display screen (205).

4. The aluminum rod melting furnace according to claim 1, characterized in that: The combustion zone is equipped with a gas nozzle at the bottom, the gas nozzle is connected to a natural gas pipeline, a solenoid valve is installed on the natural gas pipeline, and the temperature probe (204) has a built-in thermocouple sensor.

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