Smoke exhaust system of molten aluminum vacuum ladle

Abstract

The utility model discloses a molten aluminum vacuum ladle smoke exhaust system, which relates to the technical field of smoke exhaust equipment, and comprises an electrolytic tank, a smoke suction pipe is arranged in the electrolytic tank, the end part of the smoke suction pipe extends to the outside of the electrolytic tank, the end part of the smoke suction pipe is communicated with a smoke exhaust pipe, the upper end opening of the smoke exhaust pipe is provided with a smoke exhaust fan, and the upper end opening of the smoke exhaust pipe is provided with a smoke exhaust fan. A spray head assembly is installed in the smoke exhaust pipe, a water storage tank is installed outside the electrolytic tank, a water supply pump is installed outside the water storage tank, water flow is sprayed into the smoke exhaust pipe through the spray head assembly, heat exchange is conducted through contact between the water flow and high-temperature smoke, and therefore the temperature of the smoke passing through the area can be reduced; the smoke exhaust fan and other assemblies are prevented from being overheated, particles in the smoke are adsorbed through water flow, the smoke is filtered, the particles in the smoke are prevented from being discharged into the atmosphere, the atmosphere is protected, and the environmental protection performance of the equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of smoke exhaust equipment, and in particular to a vacuum lifting and exhaust system for molten aluminum. Background Technology

[0002] Vacuum ladle is a commonly used turnover equipment in the metallurgical industry. It is a relatively large sealed container made of steel shell and refractory material lining. It relies on its built-in negative pressure generating device to create a certain degree of vacuum inside the ladle, so as to extract the smelted liquid aluminum, magnesium and other metals from the electrolytic cell and transfer them to other places.

[0003] In the prior art, a vacuum lifting and fume extraction device for molten aluminum, with patent publication number CN222400754U, includes an electrolytic cell and a cleaning assembly. A drain pipe is connected to the bottom left end of the electrolytic cell, and a filter chamber is connected to the right end of the drain pipe. A threaded groove is provided at the right end of the filter chamber to prevent clogging of the filter chamber's pores. The cleaning assembly is installed inside the filter chamber. The cleaning assembly includes a sealing cover, a support rod, a filling chamber, a cleaning ring, a groove, a spring, and an arc-shaped scraper. The support rod is fixedly installed at the left end of the sealing cover, and a filling chamber is provided inside the support rod. A cleaning ring is fixedly installed at the left end of the filling chamber, and a groove is provided on the outer wall of the cleaning ring. A spring is vertically arranged inside the groove, and an arc-shaped scraper is fixedly installed at the top of the spring. The arc-shaped scraper is slidably connected to the groove. This vacuum lifting and fume extraction device for molten aluminum not only scrapes impurities inside the filter chamber but also increases the flow of gas inside the electrolytic cell.

[0004] In the above technical solution, the aluminum liquid electrolysis cell generates high temperature during the electrolysis process, and the temperature of the flue gas generated by the high temperature is also too high. If the high temperature flue gas is directly discharged, it will cause pollution to the atmosphere. Furthermore, if the high temperature smoke is directly discharged, it will flow through the exhaust fan, causing the exhaust fan to be in a high temperature state for a long time, which will accelerate the damage of the motor. Therefore, we propose an aluminum liquid vacuum lifting ladle smoke exhaust system. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an aluminum molten metal vacuum ladle lifting and fume extraction system, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an aluminum liquid vacuum ladle exhaust system, comprising an electrolytic cell, an exhaust pipe installed inside the electrolytic cell, the end of the exhaust pipe extending to the outside of the electrolytic cell, an exhaust pipe connected to the end of the exhaust pipe, an exhaust fan installed at the upper opening of the exhaust pipe, a nozzle assembly installed inside the exhaust pipe, a water tank installed outside the electrolytic cell, a water pump installed outside the water tank and connected to the water supply pump, a water supply pipe installed at the output end of the water pump, and the water supply pipe connected to the nozzle assembly.

[0007] As a further technical solution of this utility model, the nozzle assembly is disposed on the lower side of the smoke exhaust fan and on the upper side of the smoke extraction pipe.

[0008] As a further technical solution of this utility model, the end of the smoking pipe near the exhaust pipe is inclined downward.

[0009] As a further technical solution of this utility model, the lower end of the exhaust pipe is connected to a filter through a pipe, the output end of the filter is connected to a water storage tank, and a heat exchange and energy absorption component is installed inside the exhaust pipe.

[0010] As a further technical solution of this utility model, the heat exchange energy absorption assembly includes a plurality of heat exchange tubes installed inside the flue pipe, one end of each of the plurality of heat exchange tubes is connected to a collection chamber, and the collection chamber is connected to a heat energy conversion device through a guide pipe.

[0011] As a further technical solution of this utility model, the other end of each of the heat exchange tubes is connected to a dispersion chamber, the interior of the dispersion chamber is connected to a conveying pipe, the end of the conveying pipe is connected to a conveying pump, and the input end of the conveying pump is connected to an oil tank.

[0012] This utility model provides an aluminum molten metal vacuum ladle exhaust system, which has the following advantages compared with the prior art:

[0013] Beneficial effects:

[0014] 1. This design provides an aluminum molten metal vacuum ladle exhaust system. Water is sprayed into the exhaust pipe through a nozzle assembly. The water then exchanges heat with the high-temperature smoke, reducing the temperature of the smoke as it passes through this area and preventing overheating of the exhaust fan and other components. Furthermore, the water adsorbs particles in the smoke, filtering it and preventing the release of particulate matter into the atmosphere, thus protecting the environment and improving the environmental performance of the equipment.

[0015] 2. The aluminum liquid vacuum lifting and exhaust system designed in this paper can transport the room temperature oil in the oil tank to the dispersion chamber and several heat exchange tubes through the delivery pump. The oil in the heat exchange tubes absorbs the temperature of the liquid passing through it, and the heat is conducted and collected. Then, the hot oil is transported to the heat energy conversion device through the collection chamber and the guide pipe. The heat energy conversion device can reuse the heat, which can reduce heat energy emissions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a vacuum ladle exhaust system for molten aluminum.

[0017] Figure 2 A schematic diagram of the internal structure of an electrolytic cell in a vacuum ladle lifting and fume extraction system for molten aluminum.

[0018] Figure 3 This is a schematic diagram of the internal structure of the exhaust pipe of a vacuum lifting and exhaust system for molten aluminum.

[0019] In the diagram: 1. Electrolytic cell; 2. Smoke pipe; 3. Exhaust pipe; 31. Filter; 4. Exhaust fan; 5. Water tank; 6. Water pump; 7. Water supply pipe; 8. Nozzle assembly; 9. Heat exchange and energy absorption assembly; 91. Heat exchange tube; 92. Collection chamber; 93. Guide pipe; 94. Dispersion chamber; 95. Delivery pipe; 96. Delivery pump; 97. Oil tank. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3This utility model provides a vacuum ladle exhaust system for molten aluminum, including an electrolytic cell 1. An exhaust pipe 2 is installed inside the electrolytic cell 1, and the electrolytic cell 1 is also connected to an air inlet communicating with the outside. The end of the exhaust pipe 2 extends to the outside of the electrolytic cell 1 and is connected to an exhaust pipe 3. An exhaust fan 4 is installed at the upper opening of the exhaust pipe 3. A nozzle assembly 8 is installed inside the exhaust pipe 3. A water tank 5 is installed outside the electrolytic cell 1, and a water pump 6 is installed outside the water tank 5 and connected to its internal components. A water supply pipe 7 is installed at the output end of the water pump 6, and the water supply pipe 7 is connected to the nozzle assembly 8. In use, the exhaust fan 4 drives the exhaust... Airflow within the smoke pipe 3 and smoke extraction pipe 2 creates negative pressure, drawing the high-temperature fumes from the electrolytic cell 1 into the smoke extraction pipe 3. Simultaneously, the water pump 6 pumps water from the water tank 5 into the water supply pipe 7 and nozzle assembly 8, spraying the water into the smoke extraction pipe 3. This water exchange with the high-temperature fumes reduces the temperature of the fumes passing through this area, preventing overheating of the exhaust fan 4 and other components. Furthermore, the water absorbs particles from the fumes, filtering them and preventing the release of particulate matter into the atmosphere, thus protecting the environment and improving the equipment's environmental performance.

[0022] like Figure 3 As shown, in this embodiment, the nozzle assembly 8 is located on the lower side of the exhaust fan 4 and on the upper side of the smoke extraction pipe 2. This arrangement can form a cooling and filtering water curtain area between the exhaust fan 4 and the smoke extraction pipe 2, which can maximize the utilization of the exhaust pipe.

[0023] like Figure 2 As shown, in this embodiment, the end of the smoking pipe 2 near the exhaust pipe 3 is inclined downwards. This arrangement can prevent water from flowing into the electrolytic cell 1 through the exhaust pipe 3.

[0024] like Figure 1 As shown, in this embodiment, the lower end of the exhaust pipe 3 is connected to a filter 31 via a pipe. The output end of the filter 31 is connected to a water storage tank 5. A heat exchange and energy absorption component 9 is installed inside the exhaust pipe 3. When water flows towards the lower end of the exhaust pipe 3, it flows into the filter 31 through the pipe. The filter 31 filters the filter material in the water flow and guides the water flow into the water storage tank 5, which is located below the filter 31.

[0025] like Figure 3As shown, in this embodiment, the heat exchange and energy absorption assembly 9 includes several heat exchange tubes 91 installed inside the exhaust pipe 3. One end of each heat exchange tube 91 is connected to a collection chamber 92. The collection chamber 92 is connected to a heat energy conversion device via a guide pipe 93. The other end of each heat exchange tube 91 is connected to a dispersion chamber 94. A conveying pipe 95 is connected inside the dispersion chamber 94. A conveying pump 96 is connected to the end of the conveying pipe 95. The input end of the conveying pump 96 is connected to an oil tank 97. In use, the conveying pump 96 can convey the room temperature oil in the oil tank 97 to the dispersion chamber 94 and the heat exchange tubes 91. The oil in the heat exchange tubes 91 absorbs the temperature of the passing liquid, conducts and collects the heat, and then conveys the hot oil through the collection chamber 92 and the guide pipe 93 to the heat energy conversion device. The heat is then reused by the heat energy conversion device, which reduces heat energy emissions.

[0026] The working principle of this utility model is as follows:

[0027] During operation, the exhaust fan 4 drives the airflow inside the exhaust pipe 3 and the smoke extraction pipe 2, thereby creating negative pressure inside the exhaust pipe 3 and the smoke extraction pipe 2. This draws the high-temperature fumes from the electrolytic cell 1 into the exhaust pipe 3. At this time, the water supply pump 6 pumps water from the water storage tank 5 into the water supply pipe 7 and the nozzle assembly 8. The water is then sprayed into the exhaust pipe 3 through the nozzle assembly 8. The water flows into the high-temperature fumes to exchange heat, which reduces the temperature of the fumes passing through this area and prevents the exhaust fan 4 and other components from overheating. Furthermore, the water flow adsorbs particles in the fumes, filtering them and preventing the particulate matter in the fumes from being released into the atmosphere, thus protecting the atmosphere and improving the environmental performance of the equipment.

[0028] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A vacuum ladle exhaust system for molten aluminum, characterized in that, The device includes an electrolytic cell (1), an internal smoke extraction pipe (2) installed inside the electrolytic cell (1), the end of the smoke extraction pipe (2) extending to the outside of the electrolytic cell (1), the end of the smoke extraction pipe (2) connected to an exhaust pipe (3), an exhaust fan (4) installed at the upper opening of the exhaust pipe (3), a nozzle assembly (8) installed inside the exhaust pipe (3), a water storage tank (5) installed outside the electrolytic cell (1), a water supply pump (6) installed outside the water storage tank (5) and inside the water supply pump (6), a water supply pipe (7) installed at the output end of the water supply pump (6), and the water supply pipe (7) connected to the nozzle assembly (8).

2. The aluminum molten metal vacuum ladle exhaust system according to claim 1, characterized in that, The nozzle assembly (8) is located on the lower side of the smoke exhaust fan (4) and on the upper side of the smoke extraction pipe (2).

3. The aluminum molten metal vacuum ladle exhaust system according to claim 2, characterized in that, The smoking pipe (2) is inclined downward at the end near the exhaust pipe (3).

4. The aluminum molten metal vacuum ladle exhaust system according to claim 3, characterized in that, The lower end of the exhaust pipe (3) is connected to a filter (31) via a pipe. The output end of the filter (31) is connected to a water storage tank (5). A heat exchange and energy absorption assembly (9) is installed inside the exhaust pipe (3).

5. The aluminum molten metal vacuum ladle exhaust system according to claim 4, characterized in that, The heat exchange and energy absorption assembly (9) includes several heat exchange tubes (91) installed inside the flue pipe (3). One end of each heat exchange tube (91) is connected to a collection chamber (92), and the collection chamber (92) is connected to a heat energy conversion device through a guide pipe (93).

6. The aluminum molten metal vacuum ladle exhaust system according to claim 5, characterized in that, The other end of each of the heat exchange tubes (91) is connected to a dispersion chamber (94), the interior of which is connected to a delivery pipe (95), the end of which is connected to a delivery pump (96), and the input end of the delivery pump (96) is connected to an oil tank (97).

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