A metallurgical ladle bottom water pumping device

Abstract

The utility model discloses a metallurgical cinder ladle bottom water pumping device, it includes vacuum pump, liquid collection jar, electric reel, the electric reel is installed above the track of transporting cinder ladle, the electric reel is wound with hose, the electric reel makes it stretch into the cinder ladle after releasing hose, the top of liquid collection jar is equipped with inlet, the inlet is connected with the hose through the valve, the bottom of liquid collection jar is equipped with the water drain, the vacuum pump is connected with the top of liquid collection jar through the pipeline, the utility model discloses can discharge the ponding in cinder ladle fast, effective, effectively eliminates the security risk of metallurgical cinder ladle in metallurgical cinder treatment process.

Description

Technical Field

[0001] This utility model relates to a bottom pumping device for metallurgical slag bags, belonging to the field of slag bag drainage technology in copper smelting. Background Technology

[0002] Slag bags are high-temperature slag transfer equipment used in metallurgical slag handling processes. Operating in the open air, flatbed trucks transporting empty slag bags travel on tracks for 3-6 minutes without any rain protection. If continuous rainfall occurs during this time, varying degrees of water will accumulate inside the empty slag bags. When the molten high-temperature liquid comes into contact with and vaporizes the water inside the metallurgical slag bag, it can cause a steam explosion, easily resulting in personal injury or property damage. Currently, most methods involve first turning over and emptying the empty slag bags before receiving the molten high-temperature liquid. However, turning over the bags in advance requires manual intervention and prolongs the transfer time, potentially delaying production. Utility Model Content

[0003] The purpose of this invention is to address the problem of the inability to effectively remove water from the empty slag bag in the existing technology, and to propose a bottom water pumping device for metallurgical slag bags, which can quickly and effectively drain the water from the slag bag and effectively eliminate the safety risks of metallurgical slag bags in the metallurgical slag treatment process.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A bottom pumping device for metallurgical slag bags includes a vacuum pump, a liquid collection tank, and an electric reel. The electric reel is installed above a track for transporting the slag bag, and a flexible hose is wound around the electric reel. After the electric reel releases the hose, it extends into the slag bag. The top of the liquid collection tank is provided with a liquid inlet, which is connected to the flexible hose through a valve. The bottom of the liquid collection tank is provided with a drain outlet. The vacuum pump is connected to the top of the liquid collection tank through a pipe.

[0005] The operating method of the above-mentioned bottom pumping device for metallurgical slag bags is as follows: When working in rainy weather, empty slag bags are transported to the smelting operation area via railcar to receive smelting slag. Before entering the smelting operation area, there is a brief stop for water pumping. Specifically, the empty slag bag is transported and stopped under the electric reel. The electric reel is started to release the hose and insert the hose into the empty slag bag. At the same time, the vacuum pump is started to ensure that the pressure in the liquid collection tank does not exceed 0.065 MPa. Then, the valve connected to the hose is opened, allowing the water to be sucked into the hose and flow into the liquid collection tank for collection. After the water pumping is completed, the vacuum pump and valve are turned off, and the electric reel is controlled to reverse to wind up the hose. The water in the liquid collection tank is discharged through the drain outlet.

[0006] Furthermore, a submersible head is connected to the end of the hose that extends into the slag bag. The submersible head can be made of corrosion-resistant metal and has a certain weight, which helps the hose to extend to the bottom of the slag bag and pump out all the water inside.

[0007] Furthermore, the inlet of the submersible head is equipped with a filter screen to filter impurities in the accumulated water.

[0008] Furthermore, the inlet end of the submersible head is conical in shape and has mesh openings on its surface.

[0009] Furthermore, the metallurgical slag bag bottom pumping device also includes a PLC controller. The liquid inlet of the liquid collection tank is connected to a hose via an electric valve A. An electric valve B is installed on the pipeline between the vacuum pump and the liquid collection tank. The PLC controller is used to control the operation of the electric valve A, the electric valve B, and the vacuum pump.

[0010] Furthermore, the liquid collection tank is equipped with a level gauge, and the drain outlet is connected to an electric valve C. The PLC controller controls the electric valve C to operate through the data transmitted from the level gauge.

[0011] Furthermore, the liquid collection tank is provided with an overflow port on its side. After the water in the liquid collection tank settles, the impurities in the water sink, while the supernatant can be discharged through the overflow port for recycling.

[0012] Compared with existing technologies, this technical solution has the following beneficial effects: This invention uses an electric reel to insert a hose into a slag bag containing accumulated water. A vacuum pump creates negative pressure in the liquid collection tank and the hose, drawing the water into the collection tank. This prevents a steam explosion that could occur if the water comes into contact with the molten, high-temperature liquid during subsequent use of the slag bag, potentially causing personal injury or property damage. Furthermore, this device eliminates the need for complex operations such as turning the slag bag over; simply inserting the hose into the bag allows for quick and effective drainage, automating the slag bag drainage process. Attached Figure Description

[0013] Figure 1 This is a connection diagram of the bottom pumping device for the metallurgical slag bag described in Example 2.

[0014] Figure 2 This is a schematic diagram of the submersible head described in Example 2.

[0015] Reference numerals: 1-vacuum pump, 11-electric valve B, 2-liquid collection tank, 21-inlet, 22-outlet, 23-electric valve C, 24-level gauge, 25-overflow port, 3-electric reel, 4-slag bag, 5-hose, 51-sinking head, 52-inlet end, 53-electric valve A, 6-PLC controller, 7-sedimentation tank, 8-slag bag. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, but the present invention is not limited to the embodiments. Specific experimental conditions and methods not specified in the following embodiments are generally conventional methods well known to those skilled in the art.

[0017] Example 1: A bottom water pumping device for metallurgical slag bags, comprising a vacuum pump 1, a liquid collection tank 2, and an electric reel 3; the electric reel 3 is installed above the track for transporting the slag bag 4, and a flexible hose 5 is wound around the electric reel 3. After the electric reel 3 releases the flexible hose 5, it extends into the slag bag 4. The top of the liquid collection tank 2 is provided with a liquid inlet 21, which is connected to the flexible hose 5 through a valve. The bottom of the liquid collection tank 2 is provided with a drain outlet 22. The vacuum pump 1 is connected to the top of the liquid collection tank 2 through a pipe. The end of the flexible hose 5 that extends into the slag bag 4 is connected to a submersible head 51. The inlet of the submersible head 51 is provided with a filter screen for filtering impurities in the accumulated water.

[0018] Example 2: As Figure 1 and Figure 2 As shown, the difference between the bottom pumping device for metallurgical slag bags in this embodiment and the device described in Embodiment 1 is only that the inlet end 52 of the submersible head 51 is conical and has mesh openings on its surface; the bottom pumping device for metallurgical slag bags also includes a PLC controller 6, the inlet 21 of the liquid collection tank 2 is connected to the hose 5 through an electric valve A53, an electric valve B11 is provided on the pipeline between the vacuum pump 1 and the liquid collection tank 2, and the PLC controller 6 is used to control the operation of the electric valve A53, the electric valve B11 and the vacuum pump 1; the liquid collection tank 2 is provided with a level gauge 24, and the drain outlet 22 is connected to an electric valve C23, and the PLC controller 6 controls the operation of the electric valve C23 through the data transmitted by the level gauge 24; the side of the liquid collection tank 2 is provided with an overflow port 25.

[0019] The method of using the metallurgical slag bag bottom pumping device described in this embodiment is as follows: When working in rainy weather, the empty slag bag 4 is transported to the smelting operation area by railcar to receive smelting slag. Before entering the smelting operation area, it makes a brief stop to remove accumulated water. Specifically, the slag bag 4 is transported and stopped below the electric reel 3. The PLC controller 6 controls the electric reel 3 to start releasing the hose 5, so that the hose 5 extends into the slag bag 4. At the same time, it controls the vacuum pump 1 to start and open the electric valve B11 to ensure that the pressure in the liquid collection tank 2 does not exceed 0.065 MPa. Then, the electric valve A connected to the hose 5 is opened to allow the water to flow freely. The accumulated water is drawn into the hose 5 and flows into the liquid collection tank 2 for collection. The PLC controller 6 can determine whether the water in the sludge bag 4 has been emptied based on the changes in the monitoring data of the level gauge 24. After the water is pumped out, the vacuum pump 1 and the electric valve A53 are turned off. At the same time, the PLC controller 6 controls the electric reel 3 to reverse and wind up the hose 5. The electric valve C23 is opened so that the water in the liquid collection tank 2 is discharged into the settling tank 7 through the drain outlet 22. The PLC controller 6 can determine whether drainage is needed based on the liquid level height monitored by the level gauge 24. Alternatively, after the water in the liquid collection tank 2 has settled and clarified, the supernatant can be discharged through the overflow outlet 25 of the liquid collection tank 2 for recycling.

[0020] This utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A bottom pumping device for metallurgical slag bags, characterized in that: The system includes a vacuum pump (1), a liquid collection tank (2), and an electric reel (3). The electric reel (3) is installed above the track of the transport slag bag (4). A hose (5) is wound around the electric reel (3). After the electric reel (3) releases the hose (5), it extends into the slag bag (4). The top of the liquid collection tank (2) is provided with a liquid inlet (21). The liquid inlet (21) is connected to the hose (5) through a valve. The bottom of the liquid collection tank (2) is provided with a drain outlet (22). The vacuum pump (1) is connected to the top of the liquid collection tank (2) through a pipe.

2. The bottom pumping device for metallurgical slag bags according to claim 1, characterized in that: The end of the hose (5) that extends into the slag bag (4) is connected to a sinker (51).

3. The bottom pumping device for metallurgical slag bags according to claim 2, characterized in that: The inlet of the submersible head (51) is equipped with a filter screen for filtering impurities in the accumulated water.

4. The bottom pumping device for metallurgical slag bags according to claim 2, characterized in that: The inlet end (52) of the submersible head (51) is conical and has mesh openings on its surface.

5. The bottom pumping device for metallurgical slag bags according to claim 1, characterized in that: The bottom pumping device of the metallurgical slag bag (4) also includes a PLC controller (6). The inlet (21) of the liquid collection tank (2) is connected to the hose (5) through an electric valve A (53). An electric valve B (11) is provided on the pipeline between the vacuum pump (1) and the liquid collection tank (2). The PLC controller (6) is used to control the electric valve A (53), the electric valve B (11) and the vacuum pump (1) to work.

6. The bottom pumping device for metallurgical slag bags according to claim 5, characterized in that: The liquid collection tank (2) is equipped with a level gauge (24), and the drain outlet (22) is connected to an electric valve C (23). The PLC controller (6) controls the electric valve C (23) to work through the data transmitted by the level gauge (24).

7. The bottom pumping device for metallurgical slag bags according to claim 1, characterized in that: The liquid collection tank (2) is provided with an overflow port (25) on its side.

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