An automatic feeding system for magnesium alloy melting

Abstract

The present invention discloses an automatic feeding system for magnesium alloy melting, aiming to solve the technical problems of low feeding efficiency and poor safety in the existing magnesium alloy melting charging. The technical solution is as follows: It includes two identical feeding systems. Each feeding system includes a protective cover, a feeding trolley, a tipping loader, a frame, a material transport vehicle, a hopper, and a control system. The protective cover is arranged on the track above the alloy melting furnace. The feeding trolley is arranged on one side of the protective cover, and there is a horizontal trailer beside the feeding trolley. The tipping loader is arranged at the rear side of the feeding trolley through the frame, with the upper end higher than the height of the feeding trolley and the lower end on the ground. The hopper is arranged on the material transport vehicle, and the material transport vehicle is on the ground. Another feeding system is symmetrically arranged on other alloy melting furnaces, and the control system is electrically connected to each component respectively. The system of the present invention operates without manual or forklift assistance for feeding, directly discharging raw materials at one time, improving work efficiency and reducing the time required for discharging.

Description

Technical Field

[0001] The present invention belongs to the technical field of magnesium alloy smelting, and particularly relates to an automatic feeding system for magnesium alloy smelting. Background Art

[0002] At present, in the die-casting industry, manual feeding is adopted for magnesium alloy smelting. First, the raw materials need to be transported to the furnace mouth, and then the raw materials are put into the furnace by a forklift. Due to the limited height of the forklift and the size of the furnace mouth, the raw materials cannot be completely put in place, and manual feeding is required again.

[0003] Disadvantages of this feeding method:

[0004] 1. Low feeding efficiency and long time consumption: Multiple collaborations and repeated feeding among workers are required.

[0005] 2. Poor safety: Workers are relatively close to the furnace mouth, and there is a high risk of scalding.

[0006] 3. High labor cost: Multiple workers are required for each feeding. Summary of the Invention

[0007] The purpose of the present invention is to provide an automatic feeding system for magnesium alloy smelting to solve the above technical problems.

[0008] To solve the above technical problems, the present invention adopts the following technical solutions:

[0009] An automatic feeding system for magnesium alloy smelting includes two sets of identical feeding systems. Each feeding system includes a protective cover, a feeding trolley, a tipping loader, a frame, a transport vehicle, a hopper, and a control system.

[0010] The protective cover is arranged on the track directly above the alloy smelting furnace. The feeding trolley is arranged on the operation platform on one side of the protective cover. There is a horizontal trailer beside the feeding trolley. The tipping loader is arranged at the rear of the feeding trolley through the frame. The upper end of the tipping loader is higher than the height of the feeding trolley, and the lower end is on the ground. The hopper is arranged on the transport vehicle, and the transport vehicle is arranged on the ground beside the tipping loader.

[0011] Another set of feeding system is arranged on another alloy smelting furnace and is symmetrically arranged with the first feeding system.

[0012] The control system is electrically connected to the protective cover, the feeding trolley, the tipping loader, the transport vehicle, and the hopper of the feeding system respectively.

[0013] Preferably, the protective cover includes a protective cover body, four moving wheels, a flue gas collection pipe, a docking nozzle, a stirring device, a stirring lifting device, and a control system. The protective cover body is a rectangular shell-like structure without a bottom surface. The four moving wheels are arranged at the four corners of the bottom of the side wall of the protective cover body. One end of the flue gas collection pipe is connected to the top surface of the protective cover body and communicates with the inside of the protective cover, and the other end is connected to the docking nozzle. The other end of the docking nozzle is externally connected to a pipe leading to an environmental protection treatment tower. The stirring lifting device is arranged in the middle of the top surface of the protective cover body, and the stirring device is fixedly arranged at the bottom of the stirring lifting device. A feeding door is arranged at the lower part of one side wall of the protective cover body;

[0014] The stirring lifting device includes a stirring lifting screw, two bevel gears, and a motor. The motor is fixedly arranged on the top surface of the protective cover body. The two bevel gears are meshed perpendicularly to each other. The stirring lifting screw vertically passes through the center of one bevel gear and is connected by threads and inserted into the middle of the top surface of the protective cover body. The central axis of the other bevel gear is fixedly connected to the output shaft of the motor;

[0015] The stirring device includes a stirring shaft and a stirrer. The upper end of the stirring shaft is fixedly connected to the lower end of the stirring lifting screw. The stirrer is arranged at the lower end of the stirring shaft. The stirring shaft, the stirrer, and the stirring lifting screw are all hollow structures. A plurality of exhaust ports are arranged on the stirrer;

[0016] The upper end of the stirring lifting screw is externally connected to an air pipe through a rotatable air pipe joint, and the air pipe is externally connected to a gas cylinder;

[0017] The control system is electrically connected to the motor.

[0018] Preferably, the feeding door adopts an up-and-down electric push-pull door structure, and the feeding door is electrically connected to the control system.

[0019] Preferably, the feeding trolley adopts a vibrating feeding trolley.

[0020] Preferably, the tipping charging machine adopts a hopper tipping charging machine.

[0021] The beneficial effects of the present invention are:

[0022] 1. The system of the present invention operates without manual or forklift assistance for feeding, directly feeding raw materials at one time, improving work efficiency and reducing the time required for feeding;

[0023] 2. The present invention has an automatic positioning function, realizes automatic positioning of the feeding trolley at the furnace mouth. The operator only needs to operate at the electrical control cabinet without close operation, improving the safety of on-site operators;

[0024] 3. One operator of the present invention can independently complete the operations of raw material transfer and feeding, reducing production costs.

[0025] 4. The protective cover of the present invention has good sealing performance, which can effectively prevent the overflow of flue gas and reduce pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the present invention;

[0027] Figure 2 is a front view schematic diagram of the protective cover structure of the present invention;

[0028] Figure 3 is a side view schematic diagram of the protective cover structure of the present invention;

[0029] Reference numerals: 1, operating platform; 2, alloy melting furnace; 3, protective cover; 4, feeding trolley; 5, tipping loader; 6, frame; 7, material transport vehicle; 8, hopper.

[0030] 3.1, protective cover body; 3.2, moving wheel; 3.3, dust collection pipe; 3.4, docking pipe orifice; 3.5, stirring shaft; 3.6, stirrer; 3.7, stirring lifting screw; 3.8, bevel gear; 3.9, air pipe; 3.10, feeding door; 3.11, motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments and the drawings. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present invention.

[0032] The specific embodiments of the present invention will be described below in conjunction with the drawings.

[0033] As Figures 1-3 shown, a magnesium alloy melting automatic feeding system includes two sets of identical feeding systems. Each feeding system includes a protective cover 3, a feeding trolley 4, a tipping loader 5, a frame 6, a material transport vehicle 7, a hopper 8 and a PLC control system;

[0034] The protective cover 3 is respectively arranged on the track directly above the alloy melting furnace 2. The feeding trolley 4 is a vibrating feeding trolley and is arranged on the operation platform 1 on one side of the protective cover 3. There is a horizontal trailer beside the feeding trolley 4. The tipping charging machine 5 is a hopper tipping charging machine and is arranged at the rear of the feeding trolley 4 through a frame 6. The upper end of the tipping charging machine 5 is higher than the height of the feeding trolley 4, and the lower end is located on the ground. The hopper 8 is placed on the material transport vehicle 7, and the material transport vehicle 7 moves to the ground beside the tipping charging machine 5;

[0035] Another set of feeding system is installed on another alloy melting furnace 2 and is symmetrical to the first feeding system;

[0036] The control system is electrically connected to the protective cover 3, the feeding trolley 4, the tipping charging machine 5, the material transport vehicle 7, and the hopper 8 of the feeding system respectively.

[0037] The protective cover 3 includes a protective cover body 3.1, four moving wheels 3.2, a flue gas collection pipe 3.3, a docking pipe orifice 3.4, a stirring device, a stirring lifting device, and a control system. The protective cover body 3.1 is a rectangular shell-like structure without a bottom surface. The four moving wheels 3.2 are arranged at the four corners of the bottom of the side wall of the protective cover body 3.1. One end of the flue gas collection pipe 3.3 is connected to the top surface of the protective cover body 3.1 and is communicated with the inside of the protective cover, and the other end is connected to the electric telescopic docking pipe orifice 3.4. The other end of the docking pipe orifice 3.4 is externally connected to a pipe leading to the environmental protection treatment tower. The stirring lifting device is arranged in the middle of the top surface of the protective cover body 3.1, and the stirring device is fixedly arranged at the bottom of the stirring lifting device. A vertically and electrically push-pull feeding door 3.10 is arranged at the lower part of one side wall of the protective cover body 3.1;

[0038] The stirring lifting device includes a stirring lifting screw 3.7, two bevel gears 3.8, and a motor 3.11. The motor 3.11 is fixedly arranged on the top surface of the protective cover body 3.1. The two bevel gears 3.8 are meshed perpendicular to each other. The stirring lifting screw 3.7 vertically passes through the center of one bevel gear 3.8 and is connected by threads and inserted into the middle of the top surface of the protective cover body 3.1. The central axis of the other bevel gear 3.8 is fixedly connected to the output shaft of the motor 3.11;

[0039] The stirring device includes a stirring shaft 3.5 and a stirrer 3.6. The upper end of the stirring shaft 3.5 is fixedly connected to the lower end of the stirring lifting screw 3.7. The stirrer 3.6 is fixedly arranged at the lower end of the stirring shaft 3.5. The stirring shaft 3.5, the stirrer 3.6, and the stirring lifting screw 3.7 are all hollow structures. A number of exhaust ports are opened on the stirrer 3.6;

[0040] The upper end of the stirring lifting screw 3.7 is externally connected to an air pipe 3.9 through a rotatable air pipe joint, and the air pipe 3.9 is externally connected to a nitrogen cylinder;

[0041] The control system is electrically connected to the motor 3.11 and the feeding door 3.10 respectively.

[0042] During use, first place the hopper 8 filled with materials on the transport vehicle 7. Control the transport vehicle 7 to move to the side of the tipping loader 5 through the control system. Then start the tipping loader 5 to transfer the hopper 8 onto the tipping loader 5. When the tipping loader 5 lifts the hopper 8 to the highest position, the hopper 8 is located above the feeding trolley 4. The tipping loader 5 flips the hopper 8, and the materials are poured into the feeding trolley 4. Control the feeding trolley 4 to move forward to pour the materials into the alloy melting furnace 2. Then move the protective cover 3 directly above the alloy melting furnace 2 to cover the alloy melting furnace 2. Connect the butting pipe orifice 3.4 to the pipe leading to the environmental protection tower, and externally connect the air pipe 3.9 to the required gas cylinder;

[0043] During the melting process, start the motor 3.11 to drive the bevel gear 3.8 and the stirring lifting screw 3.7 to rotate, thereby driving the stirring shaft 3.5 and the stirrer 3.6 to move up and down and rotate, stirring the inside of the melting furnace. Flue gas will be generated during the stirring process. The rising flue gas enters the protective cover body 3.1 and is discharged into the environmental protection treatment tower through the dust collection pipe 3.3 for environmental protection treatment to prevent the flue gas from leaking and causing pollution;

[0044] When feeding is required during the melting process, control the feeding door 3.10 to rise. The feeding trolley 4 moves to the feeding door 3.10 to put the materials into the alloy melting furnace 2. Then control to close the feeding door 3.10 to complete one feeding action during melting;

[0045] When it is necessary to operate on the next alloy melting furnace 2, move the protective cover 3 above the next alloy melting furnace 2, and use a horizontal trailer to drag the feeding trolley 4 to the next alloy melting furnace 2, repeating the above operation process.

[0046] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0047] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding system for magnesium alloy melting, characterized in that It includes two sets of identical feeding systems. Each feeding system includes a protective cover (3), a feeding trolley (4), a tipping loader (5), a frame (6), a material transport vehicle (7), a hopper (8) and a control system; The protective cover (3) is arranged on the track directly above the alloy melting furnace (2). The feeding trolley (4) is arranged on the operation platform (1) on one side of the protective cover (3). There is a transverse trailer beside the feeding trolley (4). The tipping loader (5) is arranged at the rear side of the feeding trolley (4) through the frame (6). The upper end of the tipping loader (5) is higher than the height of the feeding trolley (4), and the lower end is on the ground. The hopper (8) is arranged on the material transport vehicle (7), and the material transport vehicle (7) is arranged on the ground beside the tipping loader (5); The other feeding system is arranged on another alloy melting furnace (2) and is symmetrically arranged with the first feeding system; The control system is electrically connected to the protective cover (3), the feeding trolley (4), the tipping loader (5), the material transport vehicle (7) and the hopper (8) of the feeding system respectively; The protective cover (3) includes a protective cover body (3.1), four moving wheels (3.2), a flue gas collection pipe (3.3), a docking pipe orifice (3.4), a stirring device and a stirring lifting device. The protective cover body (3.1) is a rectangular shell-like structure without a bottom surface. The four moving wheels (3.2) are arranged at the four corners of the bottom of the side wall of the protective cover body (3.1). One end of the flue gas collection pipe (3.3) is connected to the top surface of the protective cover body (3.1) and is communicated with the inside of the protective cover. The other end is connected to the docking pipe orifice (3.4). The other end of the docking pipe orifice (3.4) is externally connected to a pipe leading to an environmental protection treatment tower. The stirring lifting device is arranged in the middle of the top surface of the protective cover body (3.1), and the stirring device is fixedly arranged at the bottom of the stirring lifting device. A feeding door (3.10) is arranged at the lower part of one side wall of the protective cover body (3.1); The stirring lifting device includes a stirring lifting screw (3.7), two bevel gears (3.8) and a motor (3.11). The motor (3.11) is fixedly arranged on the top surface of the protective cover body (3.1). The two bevel gears (3.8) are meshed perpendicularly with each other. The stirring lifting screw (3.7) vertically passes through the center of one bevel gear (3.8) and is connected by threads and inserted into the middle of the top surface of the protective cover body (3.1). The central axis of the other bevel gear (3.8) is fixedly connected to the output shaft of the motor (3.11); The stirring device includes a stirring shaft (3.5) and a stirrer (3.6). The upper end of the stirring shaft (3.5) is fixedly connected to the lower end of the stirring lifting screw (3.7). The stirrer (3.6) is arranged at the lower end of the stirring shaft (3.5). The stirring shaft (3.5), the stirrer (3.6) and the stirring lifting screw (3.7) are all hollow structures. A number of exhaust ports are arranged on the stirrer (3.6); The upper end of the stirring lifting screw rod (3.7) is externally connected to an air pipe (3.9) through a rotatable air pipe joint, and the air pipe (3.9) is externally connected to a gas cylinder; The control system is electrically connected to the motor (3.11).

2. The automatic feeding system for magnesium alloy melting according to claim 1, wherein, The feeding door (3.10) adopts an up-and-down electric push-pull door structure, and the feeding door (3.10) is electrically connected to the control system.

3. An automatic feeding system for magnesium alloy melting according to claim 1, characterized in that, The feeding trolley (4) adopts a vibrating feeding trolley.

4. An automatic feeding system for magnesium alloy melting according to claim 1, characterized in that, The tipping charging machine (5) adopts a hopper tipping charging machine.

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