An automatic drying box for a molten aluminum slag tool

Abstract

This utility model discloses an automatic drying box for aluminum slag removal tools, including a drying chamber with an opening at the top for placing the aluminum slag removal tool. Two sets of heating components are symmetrically arranged on the side wall of the drying chamber. Two L-shaped crossbars are symmetrically fixed to the outside of the drying chamber. The horizontal portions of the two crossbars are located above the upper opening of the drying chamber and are jointly fixed with a locking mechanism. The locking mechanism includes locking fasteners fixed to the upper part of the two crossbars. Multiple fixed claws are evenly spaced on the upper part of the locking fasteners, and multiple movable claws corresponding to each fixed claw are hinged to them. A driving component is provided inside the locking fasteners to drive the multiple movable claws to move synchronously. This utility model achieves automatic drying of aluminum slag removal tools, improves drying efficiency, and reduces labor intensity.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for aluminum alloy non-ferrous metal smelting, and in particular to an automatic drying box for aluminum molten slag removal tools. Background Technology

[0002] In the auxiliary processes of aluminum alloy non-ferrous smelting for decades, a layer of slag, a mixture of oxides and impurities, forms on the surface of the molten aluminum during melting. This slag typically needs to be removed using a slag-removing tool, commonly a slag-scooping ladle with a handle. To prevent aluminum from adhering to the slag-removing tool during use, a common practice is to brush it with a zinc oxide solution before use. However, to avoid the reaction between the moisture in the zinc oxide solution and the molten aluminum, potentially causing an explosion or other hazards, currently, after brushing with the zinc oxide solution, the slag-removing tool is placed in a dry, ventilated area or near the melting furnace to air dry or cool naturally. This method suffers from long drying times and low drying efficiency. Existing technologies also use ignited natural gas or liquefied petroleum gas flames to bake the slag-removing tool to remove moisture. However, the baking temperature and time are difficult to control, resulting in inconsistent drying effects. Blindly extending the drying time not only wastes energy but also, due to human factors, may prevent strict adherence to prescribed methods or measures, leading to incomplete drying and potential hazards. Therefore, this paper proposes developing an automatic drying box for molten aluminum slag-removing tools. Utility Model Content

[0003] The purpose of this utility model is to provide an automatic drying box for aluminum molten slag removal tools, thereby solving the technical problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model discloses an automatic drying box for aluminum molten metal slag removal tools, comprising a drying chamber with an opening at the top for placing the aluminum molten metal slag removal tool; two sets of heating components are symmetrically arranged on the side wall of the drying chamber; two L-shaped crossbars are symmetrically fixedly arranged on the outside of the drying chamber, the horizontal parts of the two crossbars are located above the upper opening of the drying chamber and are jointly fixedly fixedly provided with a locking mechanism, the locking mechanism including a locking fastener fixedly arranged on the upper part of the two crossbars, the upper part of the locking fastener being fixedly provided with multiple fixed claws evenly spaced, and multiple movable claws respectively corresponding to each fixed claw being hingedly arranged, the locking fastener being provided with a driving component for driving the multiple movable claws to move synchronously.

[0006] Furthermore, the drying chamber includes an inner liner and an outer shell spaced apart, with an insulation layer provided between the inner liner and the outer shell. Two sets of heating components are symmetrically fixed on the side wall of the inner liner, and two crossbars are symmetrically fixed on the outer shell.

[0007] Furthermore, a cover plate is provided on the upper opening of the drying chamber via a hinge.

[0008] Furthermore, each of the heating components includes a concave mirror stainless steel reflector plate, with multiple electric heating tubes fixedly arranged at uniform intervals inside the mirror stainless steel reflector plate, and a protective cover fixedly arranged at the open end of the mirror stainless steel reflector plate, with multiple oblong through holes evenly distributed on the protective cover.

[0009] Furthermore, the driving assembly includes an electric push rod fixedly disposed at one end inside the locking fastener. The telescopic end of the electric push rod is fixedly connected to a locking movable member slidably disposed inside the locking fastener. The locking movable member has a locking tongue fixedly disposed at a position corresponding to each of the movable claws. Each of the movable claws has a limiting hole. The upper end of each locking tongue is movably inserted into the limiting hole of its corresponding movable claw.

[0010] Furthermore, springs are respectively connected between the corresponding fixed claws and the movable claws.

[0011] Furthermore, a temperature signal acquisition device is installed inside the drying chamber, and a control box is fixedly installed outside the drying chamber. The control box contains a solid-state relay and a controller. The solid-state relay is electrically connected to each of the electric heating tubes and is used to control the conduction and shutdown between each of the electric heating tubes and the power supply. The temperature signal acquisition device, the solid-state relay, and the electric push rod are all electrically connected to the controller.

[0012] Furthermore, a slag collection box is provided at the bottom of the drying chamber that can be pulled out.

[0013] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0014] When drying the slag removal tool, two sets of heating components dry the main body of the tool inside the drying chamber. This invention uses an electric heating tube combined with a concave-structured mirror-finish stainless steel reflector and a protective cover to form the heating components. The mirror-finish stainless steel reflector has high reflectivity, which can reflect unabsorbed heat radiation to the heating area inside the drying chamber, reducing energy loss. Furthermore, the concave structure of the mirror-finish stainless steel reflector focuses the scattered heat radiation onto the heated aluminum molten slag removal tool, increasing energy density. Compared to traditional drying methods, this invention achieves automatic drying of the aluminum molten slag removal tool, improves drying efficiency, and reduces labor intensity. In addition, this invention uses an automatic locking mechanism to keep the heated tool in the drying chamber for a specific time, preventing workers from accidentally removing tools that have not reached the required drying time, thus ensuring the reliability of the equipment. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 3 for Figure 2 Top view along the AA direction;

[0019] Figure 4 This is a schematic diagram of the heating component structure of this utility model;

[0020] Figure 5 This is a perspective view of the locking mechanism of this utility model;

[0021] Figure 6 This is a top view of the locking mechanism of this utility model;

[0022] Explanation of reference numerals in the attached drawings: 1. Drying chamber; 1-1. Inner lining; 1-2. Outer shell; 1-3. Insulation layer;

[0023] 2. Heating components; 2-1. Mirror stainless steel reflector; 2-2. Electric heating element; 2-3. Protective cover; 3. Crossbar; 4. Locking mechanism; 4-1. Locking fastener; 4-2. Fixed claw; 4-3. Movable claw; 4-4. Electric push rod; 4-5. Locking movable part; 4-6. Locking tongue; 4-7. Limiting hole; 4-8. Spring; 5. Control box; 6. Cover plate; 7. Slag receiving box. Detailed Implementation

[0024] The aluminum molten metal slag removal tool involved in this embodiment is a spoon-shaped slag removal tool with a handle, such as... Figures 1-6As shown, an automatic drying box for aluminum molten metal slag removal tools includes a drying chamber 1. The upper part of the drying chamber has an opening for placing the aluminum molten metal slag removal tool. A cover plate 6 is hinged to the upper opening of the drying chamber. Additionally, a slag collection box 7 is retractable at the bottom of the drying chamber for collecting residue generated during the drying process.

[0025] In this embodiment, the drying chamber 1 includes an inner lining 1-1 and an outer shell 1-2 spaced apart, and an insulation layer 1-3 is provided between the inner lining 1-1 and the outer shell 1-2.

[0026] Two sets of heating components 2 are symmetrically installed on the side wall of the drying chamber 1. Specifically, the two sets of heating components 2 are symmetrically fixedly installed on the side wall of the inner lining 1-1 of the drying chamber. Each heating component includes a concave mirror stainless steel reflector 2-1, which is fixedly connected to the inner lining 1-1. Multiple electric heating tubes 2-2 are fixedly installed at uniform intervals inside the mirror stainless steel reflector 2-1. A protective cover 2-3 is fixedly installed at the open end of the mirror stainless steel reflector 2-1, and multiple oblong through holes are evenly distributed on the protective cover 2-3.

[0027] When drying the slag removal tool, the main body of the tool is inserted into the drying chamber through the upper opening, with the handle protruding from the top of the chamber. Two sets of heating components dry the main body of the tool inside the drying chamber. This invention uses an electric heating tube combined with a concave-structured mirror-finish stainless steel reflector and a protective cover to form the heating components. The mirror-finish stainless steel reflector has high reflectivity, which can reflect unabsorbed heat radiation to the heating area inside the drying chamber, reducing energy loss. Furthermore, the concave structure of the mirror-finish stainless steel reflector focuses the scattered heat radiation onto the target object (the heated aluminum molten slag removal tool), increasing energy density and thus improving the drying effect on the aluminum molten slag removal tool.

[0028] Two L-shaped crossbars 3 are symmetrically fixedly installed on the exterior of the drying chamber 1. Specifically, the two crossbars 3 are symmetrically fixedly installed on the outer shell 1-2 of the drying chamber. The horizontal portions of the two crossbars 3 are located above the upper opening of the drying chamber 1 and are jointly fixedly provided with a locking mechanism 4. The locking mechanism includes a locking fastener 4-1 fixedly installed on the upper part of the two crossbars 3. The upper part of the locking fastener 4-1 is fixedly installed with multiple fixed claws 4-2 at even intervals, and is hinged with multiple movable claws 4-3 corresponding to each of the fixed claws 4-2. The interior of the locking fastener 4-1 is provided with a drive assembly for driving the multiple movable claws 4-2 to move synchronously.

[0029] In this embodiment, the driving assembly includes an electric push rod 4-4 fixedly installed inside one end of the locking fastener 4-1. The main body shell of the electric push rod 4-4 is fixedly connected to the locking fastener 4-1. The telescopic end of the electric push rod 4-4 is fixedly connected to a locking movable member 4-5 slidably installed inside the locking fastener 4-1. A locking tongue 4-6 is fixedly provided on the locking movable member at a position corresponding to each of the movable claws 4-3. Each movable claw 4-3 has a limiting hole 4-7. The upper end of each locking tongue 4-6 is movably inserted into the limiting hole 4-7 of its corresponding movable claw 4-3. Furthermore, a spring 4-8 is connected between each corresponding fixed claw 4-2 and movable claw 4-3.

[0030] The locking mechanism of this invention works as follows: When the electric push rod extends, it causes the locking tongues on the locking movable part to abut against one end of the limiting hole on the corresponding movable claw. Each locking tongue restrains the movable claw, preventing it from moving, thus fixing the handle of the slag-removing tool between the corresponding movable and fixed claws. When the electric push rod retracts, it causes the locking tongues on the locking movable part to move a certain distance to the middle position of the limiting hole on the movable claw. At this time, the movable claw is in a free state, allowing the slag-removing tool to freely enter and exit the area between the movable and fixed claws under external force. Furthermore, this invention uses a spring connecting the fixed claw and the movable front claw, ensuring that the movable claw automatically resets after opening.

[0031] As a further improvement to this utility model, a temperature signal acquisition device is installed inside the drying chamber 1, and a control box 5 is fixedly installed outside the drying chamber 1. A solid-state relay and a controller are installed inside the control box 5. The controller is a PLC or a microcontroller. The solid-state relay is electrically connected to each of the electric heating tubes 2-2 and is used to control the on / off state of each electric heating tube 2-2 and its connection to the power supply. The temperature signal acquisition device, the solid-state relay, and the electric push rod 4-4 are all electrically connected to the controller.

[0032] The controller has a pre-programmed control program that sets the heating temperature and the duration of holding at the set temperature. After the equipment starts, the controller uses a locking mechanism to lock the aluminum molten metal slag removal tool within the drying chamber. The controller uses a solid-state relay to control the heating element, converting electrical energy into heat. The current temperature of the drying chamber is acquired by a temperature signal acquisition device inside the chamber and fed back to the controller. Once the temperature in the drying chamber reaches the set temperature, the controller begins accumulating the holding time. When the accumulated time reaches the set value, the controller sends a command to the electric push rod to release the locking mechanism. During this process, the heated tool is held at a high temperature for a certain period, achieving a good drying effect.

[0033] In this embodiment, the controller is a Siemens SMART ST20 series unit. A thermocouple is used as the temperature signal acquisition device, and the thermocouple enters the PLC via an RS485 module. The solid-state relay is a Shanghai rectifier manufacturer model GJH3-80LDA, supporting DC control of AC. A pre-programmed program is written in the PLC to control the solid-state relay and locking mechanism. The locking mechanism uses an electric actuator as the actuating component. There are many types and ranges of electric actuators; this embodiment specifically uses DC24V. Tests were conducted within a stroke range of 10mm-30mm, and based on practical considerations, a 10mm stroke was chosen as the preferred choice. The PLC program in this embodiment uses PID control for temperature control. The PID settings were manually adjusted from the initial P=2, I=2, D=0.1 to P=8, I=1, D=1, and gradually finalized to P=10, I=2, D=0, further improving the stability and speed of temperature control, achieving the temperature stability required by the user. Regarding the locking device, in order to standardize and regulate the drying process after applying zinc oxide to the slag removal tool by on-site workers, specific requirements for locking and removing the tool at a specified temperature and within a fixed time were set. The heating temperature was set at 280℃ and the timer was set at 300 seconds. The time taken from the start of the test ranged from 20 to 40 minutes. In the test, most of the heating and drying tests could be completed in 20 to 25 minutes.

[0034] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. An automatic drying box for aluminum molten slag removal tools, characterized in that: The device includes a drying chamber with an opening at its upper part for placing a tool for removing slag from molten aluminum. Two sets of heating components are symmetrically arranged on the side wall of the drying chamber. Two L-shaped crossbars are symmetrically fixed to the outside of the drying chamber. The horizontal parts of the two crossbars are located above the upper opening of the drying chamber and are jointly fixed with a locking mechanism. The locking mechanism includes a locking fastener fixed to the upper part of the two crossbars. The upper part of the locking fastener is evenly spaced with multiple fixed claws and hinged with multiple movable claws corresponding to each fixed claw. The locking fastener is internally equipped with a drive component for driving the multiple movable claws to move synchronously.

2. The automatic drying box for aluminum molten metal slag removal tools according to claim 1, characterized in that: The drying chamber includes an inner liner and an outer shell spaced apart. An insulation layer is provided between the inner liner and the outer shell. Two sets of heating components are symmetrically fixed on the side wall of the inner liner, and two crossbars are symmetrically fixed on the outer shell.

3. The automatic drying box for aluminum molten metal slag removal tools according to claim 2, characterized in that: The upper opening of the drying chamber is fitted with a cover plate that is hinged together.

4. The automatic drying box for aluminum molten metal slag removal tools according to claim 2, characterized in that: Each of the heating components includes a concave mirror stainless steel reflector plate, with multiple electric heating tubes fixedly arranged at uniform intervals inside the mirror stainless steel reflector plate, and a protective cover fixedly arranged at the open end of the mirror stainless steel reflector plate, with multiple oblong through holes evenly distributed on the protective cover.

5. The automatic drying box for aluminum molten metal slag removal tools according to claim 4, characterized in that: The drive assembly includes an electric push rod fixedly disposed at one end inside the locking fastener. The telescopic end of the electric push rod is fixedly connected to a locking movable member slidably disposed inside the locking fastener. The locking movable member has a locking tongue fixedly disposed at a position corresponding to each of the movable claws. Each of the movable claws has a limiting hole. The upper end of each locking tongue is movably inserted into the limiting hole of its corresponding movable claw.

6. The automatic drying box for aluminum molten metal slag removal tools according to claim 1, characterized in that: Each of the corresponding fixed jaws and the movable jaws is connected by a spring.

7. The automatic drying box for aluminum molten metal slag removal tools according to claim 5, characterized in that: A temperature signal acquisition device is installed inside the drying chamber, and a control box is fixedly installed outside the drying chamber. The control box contains a solid-state relay and a controller. The solid-state relay is electrically connected to each of the electric heating tubes and is used to control the conduction and shutdown between each of the electric heating tubes and the power supply. The temperature signal acquisition device, the solid-state relay, and the electric push rod are all electrically connected to the controller.

8. The automatic drying box for aluminum molten metal slag removal tools according to claim 1, characterized in that: The bottom of the drying chamber is equipped with a slag collection box that can be pulled out.

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