Auxiliary device for transporting molten aluminum two-man ladle slag in ton bag
By designing auxiliary devices for the frame, columns, cantilever, and ton bag fixing rings, the problems of low efficiency and safety hazards caused by multiple people working together in the traditional aluminum molten ladle lifting and slag removal process are solved. This enables a single person to efficiently and stably fix the ton bag, improving slag removal efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 四川启明星铝业有限责任公司
- Filing Date
- 2025-08-07
- Publication Date
- 2026-05-26
AI Technical Summary
The traditional process of lifting and cleaning slag from molten aluminum requires multiple people to work together, which is inefficient and poses safety hazards. Existing support devices are prone to deformation and cannot be adjusted in height, resulting in material spillage.
An auxiliary device including a frame, column, cantilever, and ton bag fixing ring is designed. The lifting and positioning of the ton bag fixing ring is controlled by a pull rope and a motor or hydraulic device. Combined with casters and anti-slip pads, it can achieve stable fixing and quick release of the ton bag.
It enables efficient slag removal by a single operator, reduces molten slag spillage, improves operational safety and efficiency, and is adaptable to ton bags of different sizes.
Smart Images
Figure CN224277240U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging, and more particularly to a device for packaging materials, specifically an auxiliary device for carrying and transferring molten aluminum slag in ton bags. Background Technology
[0002] During aluminum smelting, molten slag adheres to the inner wall of the aluminum ladle (or molten aluminum container), requiring regular cleaning. Traditionally, one worker holds a ton bag, aligning its opening with the ladle's slag discharge port, while another worker tilts the ladle to pour the molten slag into the ton bag. To prevent spillage, at least one other worker must hold the ton bag to maintain its stability after filling. Once full, the ton bag is transferred to another workshop. The entire cleaning process requires multiple operators. During slag loading, the ton bag is prone to shifting, causing spillage. The overall cleaning efficiency is low, and the lack of auxiliary securing devices makes the ton bag susceptible to tipping, further reducing cleaning efficiency and posing safety hazards.
[0003] Patent CN 220430684 U discloses a quick-release ton bag support device, comprising a base plate with multiple support rods arranged on it. A support ring, consisting of two parts, is positioned above the support rods and connected by a quick-release pin. In use, the quick-release pin is opened, separating the support device into two parts. The ton bag is then placed on top, the support ring is inserted into the bag, and the quick-release pin is reinstalled. After filling with material, the support is opened in the same manner, allowing the ton bag to be lifted directly by a crane or forklift. When lumpy materials are placed inside, due to their irregular shape and potential central protrusion, the patent's detachable structure facilitates easy removal of the ton bag, preventing it from being jammed by a fixed top. However, the bottom of the support rods is rotatably mounted to the base plate. The support rods and their components are prone to deformation under impact from materials, leading to problems such as the quick-release pin failing to engage or disengage. When the quick-release pin cannot be opened, the ton bag is difficult to remove from the support ring. In addition, the height of the support ring cannot be adjusted, so the height of the bag opening cannot be adjusted, making it impossible for the bag to adjust its height according to the height of the discharge port, and the material is prone to spillage. Utility Model Content
[0004] This utility model provides an auxiliary device for transporting molten aluminum and lifting molten slag in ton bags. The purpose is to enable the auxiliary device to quickly fix the ton bags and quickly release them, thereby improving the efficiency of transporting molten aluminum and lifting molten slag in ton bags.
[0005] The technical solution adopted in this utility model is: an auxiliary device for transporting molten aluminum in ton bags and lifting ladle slag, including a frame, wheels at the bottom of the frame, a column installed on the frame, a cantilever installed on the upper part of the column, and a ton bag fixing ring connected to the cantilever by a pull rope. The ton bag fixing ring includes an upper ring and a lower ring, the pull rope is connected to the upper ring, the planes corresponding to the upper ring and the lower ring are both horizontal, and the upper ring and the lower ring are connected by at least two connecting rods. The ton bag fixing ring is in the shape of a frustum or truncated pyramid with a smaller upper part and a larger lower part.
[0006] To facilitate the manufacture of the upper and lower rings, the upper and lower rings of the ton bag fixing rings are both made of bent steel bars, and the joints of the rings are welded together.
[0007] To further improve the strength and stability of the ton bag fixing ring, at least three connecting rods are evenly arranged between the upper and lower rings. The connecting rods are made of steel bars, and their two ends are welded to the upper and lower rings respectively.
[0008] To facilitate control of the lifting and lowering of the ton bag fixing ring by the pull rope, the following further features: a motor and a drum are fixedly installed on the frame, column, or cantilever, with the motor and drum connected in a drive connection, and the pull rope passing through at least one pulley and wound on the drum; or, the cantilever is hinged to the upper end of the column, and the column is equipped with a hydraulic jacking device, with the telescopic rod of the hydraulic jacking device rotatably connected to the cantilever.
[0009] BOOM (Monthly Lots) containing molten slag are typically transferred from the vehicle frame to other locations via hoisting. To prevent the cantilever from interfering with the hoisting operation, a further design is implemented: the uprights are rotatably mounted on the vehicle frame, with the axis of rotation of the uprights vertical. For example, the upright includes an outer cylinder fixedly mounted to the vehicle frame at its lower end, and an inner cylinder inserted into the outer cylinder. A diagonal brace is provided between the outer cylinder and the vehicle frame. The length of the inner cylinder is greater than the length of the outer cylinder, and the outer diameter of the inner cylinder is the same as the inner diameter of the outer cylinder. The cantilever is fixedly mounted on the upper section of the inner cylinder.
[0010] The upper ring of the ton bag fixing ring can be of a fixed size and shape. In order to make the upper ring adaptable to ton bags of different sizes, the upper ring of the ton bag fixing ring is formed by bending or flexing a rod. The two ends of the rod are connected by a connecting buckle, and the size of the upper ring can be adjusted by the connecting buckle.
[0011] To prevent the ton bags from sliding on the chassis and to prevent the chassis from scratching the ton bags, anti-slip mats are also laid on the chassis.
[0012] To facilitate the movement of the auxiliary device for transporting molten aluminum in ton bags and lifting slag, the wheels are swivel wheels.
[0013] The beneficial effects of this utility model are as follows: the ton bag fixing ring is suspended in the air or placed on the vehicle frame, and then the ton bag is placed into the ton bag fixing ring. The opening of the ton bag is fixed to the upper ring. For example, the opening of the ton bag can be turned outward and put into the upper ring and fixed. The opening of the ton bag is opened by the upper ring, which makes it easy to fill the ton bag with molten aluminum ladle slag. The bottom of the vehicle frame is equipped with wheels, which makes it easy to move the opening of the ton bag to below the slag discharge port of the molten aluminum ladle, and also facilitates the transfer of the ton bag containing molten slag. When the ton bag and its fixing ring are placed on the vehicle frame, they automatically remain stable, preventing tipping and spillage of molten slag during loading and transport. Even when suspended, the ton bag remains stable during molten slag loading. After the ton bag is full, lowering it onto the frame again ensures continued stability, preventing tipping and spillage during transport. Upon arrival at the destination, simply loosen the bag opening and lift the fixing ring to quickly separate it from the molten slag-filled ton bag, allowing for subsequent transport or cleaning. The ton bag fixing ring is shaped like a frustum or pyramid with a smaller top and a larger bottom. After the bag opening is separated from the upper ring, it can be easily separated from the ton bag by lifting the fixing ring. The expansion of the ton bag due to the molten slag does not affect the operation of lifting the fixing ring to separate the fixing ring from the molten slag-filled ton bag.
[0014] This invention allows for the cleaning of slag from molten aluminum ladles, which can be performed by only one person, reducing the number of people required to clean the molten aluminum ladle slag and improving the efficiency of transporting molten aluminum ladles in ton bags. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of one embodiment of the present invention.
[0016] Reference numerals: 1. Frame; 2. Wheel; 3-1. Outer cylinder; 3-2. Inner cylinder; 4. Cantilever; 5. Pull rope; 6-1. Upper ring; 6-2. Lower ring; 6-3. Connecting rod; 7. Hydraulic jacking device; 8. Diagonal brace; 9. Anti-slip mat. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings.
[0018] like Figure 1As shown, the auxiliary device for transporting molten aluminum slag in ton bags according to this utility model includes a frame 1, which is generally a metal frame, such as a rectangular steel frame. The frame 1 should have good load-bearing capacity and stability to meet the requirements of use in high-temperature environments. Wheels 2 are provided at the bottom of the frame 1 to facilitate movement. There are generally four wheels 2, installed at the four corners of the frame 1. To facilitate manual movement of the frame 1, the wheels 2 are preferably swivel casters, preferably swivel casters with brakes. A column is installed on the frame 1, and a cantilever 4 is installed on the upper part of the column, supporting the cantilever. To ensure the stability of the column and cantilever 4, diagonal bracing rods 8 can also be installed between the column and the frame 1. One or more diagonal bracing rods 8 are provided. The cantilever 4 is connected to a ton bag fixing ring by a rope 5, which is generally a steel rope, nylon rope, or chain.
[0019] The ton bag fixing ring is used to assist in securing the ton bag. The ton bag fixing ring includes an upper ring 6-1 and a lower ring 6-2, which are connected by at least two connecting rods 6-3 to form a single unit. Pull ropes 5 are connected to the upper ring 6-1 of the ton bag fixing ring. To maintain the balance of the ton bag fixing ring, at least two pull ropes 5 are connected at two different positions on the upper ring 6-1. For example, three pull ropes 5 are evenly connected to the upper ring 6-1, with the three ropes of equal length, making the plane corresponding to the upper ring 6-1 horizontal. Both the planes corresponding to the upper ring 6-1 and the lower ring 6-2 are horizontal, and the ton bag fixing ring is shaped like a frustum or pyramid, with the upper ring smaller than the lower ring. When the ton bag fixing ring is shaped like a frustum of a cone, smaller at the top and larger at the bottom, both the upper ring 6-1 and the lower ring 6-2 are circular, with the diameter of the upper ring 6-1 being smaller than the diameter of the lower ring 6-2. The line connecting the center of the upper ring 6-1 and the center of the lower ring 6-2 is a vertical line. When the ton bag fixing ring is shaped like a frustum of a pyramid, smaller at the top and larger at the bottom, both the upper ring 6-1 and the lower ring 6-2 are polygons, both regular polygons, with the area of the upper ring 6-1 being smaller than the area of the lower ring 6-2. The line connecting the center of the upper ring 6-1 and the center of the lower ring 6-2 is a vertical line.
[0020] When cleaning slag from the molten aluminum ladle, the ladle bag fixing ring is suspended in the air or placed on the frame 1. An empty ladle bag is then placed inside the fixing ring, with the bag opening fixed to the upper ring 6-1. For example, the bag opening can be turned outwards and fitted onto the upper ring 6-1, secured by the bag opening fixing ring. The bag opening is opened by the upper ring 6-1, facilitating the filling of the molten aluminum ladle slag into the ladle bag. The frame 1 is then moved so that the bag opening aligns with the slag discharge port of the molten aluminum ladle, allowing the slag to fall into the ladle bag. During slag filling, the ladle bag can be suspended in the air (i.e., the fixing ring and the entire ladle bag are suspended), or it can be placed directly on the frame 1 (i.e., both the fixing ring and the ladle bag are placed on the frame 1). The ton bag fixing ring and the ton bag can be placed directly on the frame 1. In order to prevent the ton bag from sliding on the frame 1 and to prevent the frame 1 from scratching the ton bag, an anti-slip mat 9 can also be laid on the frame 1. The ton bag fixing ring and the ton bag are placed on the anti-slip mat 9.
[0021] The ton bag and its retaining ring are placed on the frame 1 to receive molten slag. The retaining ring is shaped like a smaller top and a larger bottom, and it serves to open and secure the ton bag, preventing it from tipping over. When the ton bag and its retaining ring are suspended in the air, the ton bag will not tip over while being filled with molten slag. After the ton bag is filled with molten slag, the ton bag and its retaining ring are lowered and placed on the frame 1. The retaining ring then secures the ton bag, preventing it from tipping over and facilitating the removal of the ton bag and the entire auxiliary device.
[0022] After the ton bag and its retaining ring are moved to the destination, the bag opening is untied, that is, the bag opening is separated from the upper ring 6-1. Then, by lifting the retaining ring, the retaining ring can be quickly separated from the ton bag containing molten slag, facilitating subsequent transfer of the ton bag containing molten slag. The retaining ring is shaped like a frustum or pyramid, with a smaller top and a larger bottom. After the bag opening is untied from the upper ring 6-1, the retaining ring, being smaller at the top and larger at the bottom, can be easily separated from the ton bag by lifting it. Furthermore, the expansion of the ton bag due to the molten slag will not affect the operation of separating the retaining ring from the molten slag-containing ton bag by lifting it.
[0023] To improve the strength and stability of the ton bag fixing ring, at least three connecting rods 6-3 are evenly arranged between the upper ring 6-1 and the lower ring 6-2. The connecting rods 6-3 are generally steel bars, and their ends are typically welded to the upper ring 6-1 and the lower ring 6-2. The upper ring 6-1 and the lower ring 6-2 of the ton bag fixing ring are generally circular, but can also be other polygonal shapes, such as regular n-gons where n ≥ 3 and is an integer. To facilitate the manufacture of the upper ring 6-1 and the lower ring 6-2 and ensure the strength of the ton bag fixing ring, the upper ring 6-1 and the lower ring 6-2 are generally made by bending steel bars. The lower ring 6-2 is placed behind the frame 1 to provide support. To improve the strength of the lower ring 6-2, it is generally a closed ring, that is, a ring without breaks. For example, the lower ring 6-2 is a circular ring formed by bending steel bars, with the joints of the circular ring welded together. The upper ring 6-1 is used to open the bag opening. The upper ring 6-1 can be a closed ring, meaning a ring without breaks, such as a circular ring formed by bending a steel bar, with the joint welded together. The upper ring 6-1 can also be an open ring, meaning it has one or more breaks, but the upper ring 6-1, lower ring 6-2, and connecting rod 6-3 form a fixed whole. To accommodate different sizes of ton bags and ensure sealing and stability, the upper ring 6-1 of the ton bag fixing ring is formed by bending or twisting a rod. The two ends of the rod are connected by a connecting buckle, and the size of the upper ring 6-1 is adjustable via a knob or slider. The connecting buckle connects and holds the two ends of the rod together in place.
[0024] The opening of the ton bag should ideally be close to the slag discharge port of the molten aluminum ladle to reduce dust escape. To facilitate height adjustment of the ton bag via the pull rope 5, a motor and drum are fixedly installed on the frame 1, column, or cantilever 4. The motor is connected to the drum via a drive mechanism, and the pull rope 5 passes through at least one pulley and is wound onto the drum. A reduction gear mechanism is typically present between the motor and the drum, allowing the motor to rotate in both directions. The motor drives the drum to rotate, causing the pull rope 5 to extend or shorten accordingly, thus adjusting the height of the ton bag's fixing ring.
[0025] Furthermore, the cantilever 4 can be hinged to the upper end of the column, allowing the cantilever to rotate around the column in the vertical plane. The column is equipped with a hydraulic jacking device 7, and the telescopic rod of the hydraulic jacking device 7 is rotatably connected to the cantilever 4. The hydraulic jacking device 7 can control the rotation of the cantilever 4 around the upper end of the column, thereby enabling the lifting and lowering of one end of the cantilever 4 connected to the pull rope 5, and thus adjusting the height of the ton bag fixing ring.
[0026] The ton bags containing molten slag are typically transferred from chassis 1 to other locations by hoisting. To prevent the cantilever 4 from interfering with the operation of hoisting the ton bags, the upright is rotatably mounted on chassis 1 with its rotation axis vertical, allowing the cantilever 4 and the ton bag fixing ring to be moved away from directly above the ton bag. See, for example. Figure 1 The column includes an outer cylinder 3-1 fixedly installed at the lower end of the frame 1, and an inner cylinder 3-2 inserted into the outer cylinder 3-1. The length of the inner cylinder 3-2 is greater than the length of the outer cylinder 3-1. The outer diameter of the inner cylinder 3-2 is the same as the inner diameter of the outer cylinder 3-1. A diagonal brace 8 is provided between the outer cylinder 3-1 and the frame 1. The diagonal brace 8 is used to improve the stability of the outer cylinder 3-1. The cantilever 4 is fixedly installed on the upper section of the inner cylinder 3-2.
Claims
1. An auxiliary device for transporting molten aluminum in ton bags and lifting ladle slag, characterized in that: The vehicle includes a frame (1), with wheels (2) at the bottom of the frame (1), a column installed on the frame (1), and a cantilever (4) installed on the upper part of the column. The cantilever (4) is connected to a ton bag fixing ring by a pull rope (5). The ton bag fixing ring includes an upper ring (6-1) and a lower ring (6-2). The pull rope (5) is connected to the upper ring (6-1). The planes corresponding to the upper ring (6-1) and the lower ring (6-2) are both horizontal. The upper ring (6-1) and the lower ring (6-2) are connected by at least two connecting rods (6-3). The ton bag fixing ring is in the shape of a frustum or a pyramid with a smaller upper part and a larger lower part.
2. The auxiliary device for transporting molten aluminum in ton bags and lifting ladle slag as described in claim 1, characterized in that: The upper ring (6-1) and lower ring (6-2) of the ton bag fixing ring are both circular rings made of bent steel bars, and the joints of the circular rings are welded together.
3. The auxiliary device for transporting molten aluminum in ton bags and lifting ladle slag as described in claim 1, characterized in that: At least three connecting rods (6-3) are evenly arranged between the upper ring (6-1) and the lower ring (6-2). The connecting rods (6-3) are steel bars, and the two ends of the connecting rods (6-3) are welded to the upper ring (6-1) and the lower ring (6-2) respectively.
4. The auxiliary device for transporting molten aluminum in ton bags and lifting ladle slag as described in claim 1, characterized in that: The frame (1), column or cantilever (4) is also fixedly equipped with a motor and a drum, the motor is connected to the drum for transmission, and the pull rope (5) passes through at least one pulley and is wound on the drum; or, the cantilever (4) is hinged to the upper end of the column, the column is equipped with a hydraulic jacking device (7), and the telescopic rod of the hydraulic jacking device (7) is rotatably connected to the cantilever (4).
5. The auxiliary device for transporting molten aluminum in ton bags and lifting ladle slag as described in any one of claims 1 to 4, characterized in that: The column is rotatably mounted on the frame (1), and the axis of rotation of the column is vertical.
6. The auxiliary device for transporting molten aluminum in ton bags and lifting ladle slag as described in claim 5, characterized in that: The column includes an outer cylinder (3-1) fixedly installed at the lower end on the frame (1) and an inner cylinder (3-2) inserted into the outer cylinder (3-1). An inclined brace (8) is provided between the outer cylinder (3-1) and the frame (1). The length of the inner cylinder (3-2) is greater than the length of the outer cylinder (3-1). The outer diameter of the inner cylinder (3-2) is the same as the inner diameter of the outer cylinder (3-1). The cantilever (4) is fixedly installed on the upper section of the inner cylinder (3-2).
7. The auxiliary device for transporting molten aluminum in ton bags and lifting ladle slag as described in any one of claims 1 to 4, characterized in that: The upper ring (6-1) of the ton bag fixing ring is formed by bending or flexing a rod. The two ends of the rod are connected by a connecting buckle, and the size of the upper ring (6-1) can be adjusted by the connecting buckle.
8. The auxiliary device for transporting molten aluminum in ton bags and lifting ladle slag as described in any one of claims 1 to 4, characterized in that: The frame (1) is also covered with anti-slip mats (9).
9. The auxiliary device for transporting molten aluminum in ton bags and lifting ladle slag as described in any one of claims 1 to 4, characterized in that: The wheel (2) is a swivel wheel.