A steam exhaust pipe water collection and recovery device for a casting production line

Abstract

The utility model provides a steam exhaust pipe water collection and recovery device for a casting production line, comprising a water catching net, a water collecting plate, a sedimentation tank, and a water delivery pump. The water catching net is arranged at the upper end of the steam exhaust pipe, and the water catching net is used to intercept large-particle water droplets in water vapor. The water collecting plate is arranged at the lower end of the steam exhaust pipe. The water collecting plate is arranged obliquely and a drain pipe is provided at the lowest point. The drain pipe is connected to the inlet of the sedimentation tank through a pipeline. The sedimentation tank is provided with a clean water tank. The outlet of the clean water tank is connected to the water delivery pump, and the output end of the water delivery pump is connected to the casting circulating water system. The utility model reduces the corrosion rate of the steam exhaust pipe and prolongs the service life of the steam exhaust pipe by collecting condensed water in the steam exhaust pipe. At the same time, it also recovers a part of cooling water and delivers it to the casting circulating water system for secondary use, thereby reducing the water consumption of cooling water and reducing the operating cost of the production line.

Description

Technical Field

[0001] The utility model relates to the technical field of copper anode plate casting and production, in particular to a steam exhaust pipe water collection and recovery device for a casting production line. Background Art

[0002] In copper metallurgical production, anode copper liquid is cast into anode copper plates using casting discs, such as Figure 5 As shown, molds 2 are evenly placed on the circular disk surface of the casting disk to form a circular array. The driving device drives the casting disk to rotate around the center of the disk. A steam collecting hood 3 is provided above the casting disk, and a cooling water nozzle 4 is installed in the hood. The steam collecting hood 3 is connected to the exhaust fan 6 by an exhaust pipe 5, and the exhaust fan 6 is connected to the exhaust tube 7 by an exhaust pipe 5. The cooling water nozzle 4 is provided with cooling water by the casting circulating water system. During the production process, the ladle 1 first injects a set mass of anode copper liquid into the mold 2. After the copper liquid solidifies to form an anode copper plate, the casting disk is rotated to send the mold 2 to the bottom of the steam collecting hood 3, and the cooling water nozzle 4 is started to spray cooling water to cool the mold 2 and the anode copper plate; during the cooling process, 10% to 30% of the cooling water is vaporized and converted into water vapor, which is collected by the steam collecting hood 3 and pumped into the exhaust tube 7 by the exhaust fan 6 through the exhaust pipe 5 for discharge. During the production of anode plates, the cooling water is vaporized and then discharged during the temperature drop, resulting in a large consumption of water resources; at the same time, part of the water vapor condenses into water and accumulates in the exhaust cylinder 7, causing the cylinder to be corroded and damaged. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a steam exhaust pipe water collection and recovery device for a casting production line.

[0004] The specific scheme of the utility model is as follows: a steam exhaust pipe water collection and recovery device for a casting production line, comprising a water catching net, a water collecting plate, a sedimentation tank, and a water pump, wherein the water catching net is arranged at the upper end of the steam exhaust pipe, and the water catching net is used to intercept large particles of water droplets in water vapor, and the water collecting plate is arranged at the lower end of the steam exhaust pipe, the water collecting plate is arranged obliquely and a drain pipe is provided at the lowest point, the drain pipe is connected to the inlet of the sedimentation tank through a pipeline, the sedimentation tank is provided with a clean water tank, the outlet of the clean water tank is connected to the water pump, and the output end of the water pump is connected to the casting circulating water system.

[0005] Preferably, it also includes a guide vane, which is arranged at the upper end of the exhaust cylinder and below the water catching net.

[0006] Preferably, the axis of the guide impeller is arranged parallel to the exhaust pipe, and the guide impeller includes a mounting bracket, a rotating shaft is mounted on the mounting bracket, one end of the rotating shaft is rotatably connected to the mounting bracket, and a plurality of guide blades are fixedly mounted on the rotating shaft.

[0007] Preferably, a clarification tank and a water purification tank are provided in the sedimentation tank, a partition wall is provided between the clarification tank and the water purification tank, and an overflow hole is provided at the upper end of the partition wall.

[0008] Preferably, a filter is installed between the outlet of the water purification tank and the water delivery pump.

[0009] Preferably, the water-catching net comprises a grille, which is fixedly connected to the inner wall of the exhaust pipe, and a mesh cloth is mounted on the grille. The mesh cloth has a plurality of meshes, and the size of the meshes is φ2-φ8mm.

[0010] Preferably, a plurality of water-catching nets are provided.

[0011] Preferably, the angle between the water collecting plate and the horizontal plane is 5°-60°.

[0012] Compared with the prior art, the utility model has the following beneficial effects: by collecting the condensed water in the exhaust tube, the corrosion rate of the exhaust tube is reduced, the service life of the exhaust tube is extended, and at the same time a part of the cooling water is recovered and transported to the casting circulating water system for secondary utilization, thereby reducing the cooling water consumption and reducing the operating cost of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 yes Figure 1 A magnified view of point A;

[0015] Figure 3 yes Figure 2 B-direction view;

[0016] Figure 4 It is a structural schematic diagram of the utility model water-catching net;

[0017] Figure 5 This is a schematic diagram of the structure of the copper anode plate casting production line in the prior art;

[0018] In the figure: 1. ladle; 2. mold; 3. steam collecting hood; 4. cooling water nozzle; 5. exhaust pipe; 6. exhaust fan; 7. exhaust cylinder; 8. pouring circulating water system; 9. guide impeller; 91. mounting bracket; 92. guide vane; 10. water catching net; 11. water collecting plate; 12. drain pipe; 13. clarification tank; 14. overflow hole; 15. clean water tank; 16. filter; 17. water pump. DETAILED DESCRIPTION

[0019] like Figure 1-4As shown, this embodiment provides a water collection and recovery device for the exhaust pipe 7 of the casting production line, including a water catching net 10, a water collecting plate 11, a sedimentation tank, and a water pump 17. The water catching net 10 is arranged at the upper end of the exhaust pipe 7, and the water catching net 10 is used to intercept large particles of water droplets in water vapor. The water collecting plate 11 is arranged at the lower end of the exhaust pipe 7. The water collecting plate 11 is arranged obliquely and a drain pipe 12 is provided at the lowest point. The drain pipe 12 is connected to the inlet of the sedimentation tank through a pipeline. The sedimentation tank is provided with a clean water tank 15. The outlet of the clean water tank 15 is connected to the water pump 17, and the output end of the water pump 17 is connected to the casting circulating water system 8.

[0020] Preferably, two guide vanes 9 are installed in the exhaust cylinder 7 . The guide vanes 9 are arranged at the upper end of the exhaust cylinder 7 and below the water catching net 10 . The lowest guide vane 9 is 1 m higher than the air inlet of the exhaust cylinder 7 .

[0021] Preferably, the axis of the guide impeller 9 is arranged parallel to the exhaust pipe 7, and the guide impeller 9 includes a mounting bracket 91, on which a rotating shaft is mounted, one end of the rotating shaft is rotatably connected to the mounting bracket 91, and a plurality of guide blades 92 are fixedly mounted on the rotating shaft.

[0022] Preferably, a clarification tank 13 and a clean water tank 15 are provided in the sedimentation tank, a partition wall is provided between the clarification tank 13 and the clean water tank 15, and an overflow hole 14 is provided at the upper end of the partition wall. Preferably, a Y-type filter 16 is installed between the outlet of the clean water tank 15 and the water delivery pump 17, and the filter 16 is used to further filter impurities and improve the cleanliness of the recycled water.

[0023] Preferably, the water-catching net 10 comprises a grille, which is fixedly connected to the inner wall of the exhaust pipe 7. A glass fiber mesh is mounted on the grille. The mesh has a plurality of meshes, and the size of the mesh is φ2-φ8 mm.

[0024] Preferably, two water-catching nets 10 are provided, the lower water-catching net 10 is 1 m higher than the highest guide impeller 9, and the height difference between the two water-catching nets 10 is 0.5 m.

[0025] Preferably, the angle between the water collecting plate 11 and the horizontal plane is 5°-60°.

[0026] The working principle of the utility model is as follows: in the production process of copper anode plates, after water vapor enters the exhaust pipe 7, it flows through the guide impeller 9 from bottom to top, and after passing through the guide blade 92, the guide blade 92 rotates automatically, and the water droplets in the water vapor have a large inertia and are thrown to the inner wall of the exhaust pipe 7. The water vapor condenses into large water droplets on the wall surface. Under the action of gravity, the water droplets fall along the inner wall of the exhaust pipe 7 to the water collection plate 11, and flow into the clarification tank 13 through the drain pipe 12; large particle water droplets in the water vapor passing through the guide impeller 9 will be intercepted by the water catcher 10 above and fall back onto the water collection plate 11, and flow into the clarification tank 13, and the collected water is settled and separated in the clarification tank 13. Sludge, large particle impurities, etc.; after the water level in the clarification tank 13 reaches the upper limit, it flows into the clean water tank 15 through the overflow hole 14. After the water level in the clean water tank 15 reaches a certain value, the water delivery pump 17 is started to deliver the clean water to the casting circulating water system for use as cooling water.

[0027] After the utility model is actually applied to the production line, the consumption of cooling water is reduced by 60%, and at the same time, there is no water accumulation at the bottom of the exhaust pipe 7, which greatly slows down the corrosion rate of the exhaust pipe 7.

Claims

1. A steam exhaust pipe water collection and recovery device for a casting production line, characterized in that: It includes a water catching net, a water collecting plate, a sedimentation tank, and a water pump. The water catching net is arranged at the upper end of the exhaust pipe, and is used to intercept large particles of water droplets in the water vapor. The water collecting plate is arranged at the lower end of the exhaust pipe. The water collecting plate is arranged obliquely and a drain pipe is provided at the lowest point. The drain pipe is connected to the inlet of the sedimentation tank through a pipeline. The sedimentation tank is provided with a clean water tank, and the outlet of the clean water tank is connected to the water pump. The output end of the water pump is connected to the pouring circulating water system.

2. The exhaust pipe water collection and recovery device for a casting production line according to claim 1 is characterized in that: It also includes a guide vane, which is arranged at the upper end of the exhaust cylinder and below the water catching net.

3. The exhaust pipe water collection and recovery device for a casting production line according to claim 2 is characterized in that: The axis of the guide impeller is arranged parallel to the exhaust pipe. The guide impeller comprises a mounting bracket, a rotating shaft is mounted on the mounting bracket, one end of the rotating shaft is rotatably connected to the mounting bracket, and a plurality of guide blades are fixedly mounted on the rotating shaft.

4. The exhaust pipe water collection and recovery device for a casting production line according to claim 1, characterized in that: A clarification tank and a clean water tank are arranged in the sedimentation tank, a partition wall is arranged between the clarification tank and the clean water tank, and an overflow hole is arranged at the upper end of the partition wall.

5. The exhaust pipe water collection and recovery device for a casting production line according to claim 1, characterized in that: A filter is arranged between the outlet of the water purification pool and the water delivery pump.

6. The exhaust pipe water collection and recovery device for a casting production line according to claim 1, characterized in that: The water-catching net comprises a grille, which is fixedly connected to the inner wall of the exhaust pipe. A mesh cloth is arranged on the grille, and the mesh cloth has a plurality of meshes, and the size of the meshes is φ2-φ8mm.

7. A steam exhaust pipe water collection and recovery device for a casting production line according to any one of claims 1 to 6, characterized in that: The water catching nets are provided in plurality.

8. A steam exhaust pipe water collection and recovery device for a casting production line according to any one of claims 1 to 6, characterized in that: The included angle between the water collecting plate and the horizontal plane is 5°-60°.

Images