PS converter sealing trolley circulating water cooling system

Abstract

The utility model discloses a circulating water cooling system for a PS converter sealing trolley, and belongs to the technical field of metal smelting. The emergency cooling system comprises a cooling system and an emergency system, the emergency system comprises an emergency electric valve, an emergency water pump, an emergency drainage pipe and an exhaust valve, the emergency drainage pipe is communicated with the cooling system, the emergency electric valve and the emergency water pump are sequentially installed on the emergency drainage pipe according to the water flow direction, and the exhaust valve is installed in the cooling system.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal smelting and relates to a PS converter sealing trolley circulating water cooling system. Background Art

[0002] The full name of PS converter is Pierce-Smith converter, which is a horizontal side-blown converter. It is mainly used to process matte to obtain blister copper and process low-nickel matte to obtain high-nickel matte in the copper smelting process. PS converter has mature and reliable technology, simple and stable equipment operation, outstanding impurity removal ability, low investment and production costs, strong ability to process cold materials and scrap copper, and is widely used.

[0003] The PS converter usually closes the furnace mouth by a sealing trolley. The sealing trolley moves along the track on which it is located and can leave the furnace mouth position to open the furnace mouth to achieve work such as adding materials or exhausting the smoke in the furnace chamber. When the sealing trolley moves to the furnace mouth position, it can play the role of covering and closing the furnace mouth. During the operation of the PS converter, it is necessary to shake the furnace. During the shaking process, the sealing trolley needs to be fixed at the furnace mouth position to close the furnace mouth to prevent the smoke in the furnace chamber from escaping from the furnace mouth and causing environmental pollution. However, during the shaking process, the high-temperature melt inside the furnace chamber shakes greatly and is easy to splash through the furnace mouth to the side of the sealing trolley that blocks the furnace mouth. On the one hand, the high-temperature melt adheres to the side of the sealing trolley that blocks the furnace mouth to form cold copper. During the movement of the sealing trolley, the cold copper will scratch the parts that are close to the sealing trolley, such as the inner smoke hood of the PS converter, which can easily cause damage to the equipment parts. At the same time, the movement of the sealing trolley itself will also be affected; on the other hand, the sealing trolley itself is easily deformed by the high temperature, resulting in a decrease in its sealing effect. Thus, the cooling of the sealing trolley is accelerated, so that the melt splashed onto the side of the sealing trolley that blocks the furnace mouth quickly falls off, and at the same time, the influence of high temperature on the sealing trolley is reduced, which is of great significance. Patent application number 202022714158.9 discloses a water-cooled sealing trolley device for a PS converter, which continuously introduces flowing cold water into the cooling chamber of the sealing trolley to quickly cool down the sealing trolley. However, if the sealing trolley leaks, it is easy to cause a safety accident. Therefore, in the process of accelerating the cooling of the sealing trolley, safety hazards also appear.

[0004] Safe production is the bottom line that industrial production units must adhere to. Therefore, safety must also be ensured in the process of accelerating the cooling of the sealed trolley, reducing the risk of environmental pollution, and improving the use effect of the sealed trolley.

[0005] Therefore, it is necessary to provide a PS converter sealing trolley circulating water cooling system to accelerate the cooling of the sealing trolley under the premise of high safety, so as to achieve safe production while reducing the risk of environmental pollution and improving the use effect of equipment. Utility Model Content

[0006] In order to overcome the problems in the background technology, the utility model proposes a PS converter sealing trolley circulating water cooling system. If the sealing trolley leaks during operation, the water will be discharged through the emergency system, which effectively reduces safety hazards and improves the system's operating safety.

[0007] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0008] The circulating water cooling system includes a cooling system and an emergency system. The emergency system includes an emergency electric valve 1, an emergency water pump 2, an emergency drain pipe 3, and an exhaust valve 14. The emergency drain pipe 3 is connected to the cooling system. The emergency electric valve 1 and the emergency water pump 2 are installed on the emergency drain pipe 3 in sequence according to the direction of water flow. The exhaust valve 14 is installed in the cooling system.

[0009] Preferably, the cooling system includes a closed cooling tower 4, a circulating water tank 5, a circulating water pump 6, a circulating water inlet pipe 7, a circulating water outlet pipe 8, a cooling tower outlet pipe 9, a water tank outlet pipe 10, a sealed trolley inlet pipe 11, an inlet electric valve 12, an outlet electric valve 13, and a sealed trolley outlet pipe 16. The outlet of the closed cooling tower 4 is connected to the inlet of the circulating water tank 5 through the cooling tower outlet pipe 9, the outlet of the circulating water tank 5 is connected to the inlet of the circulating water pump 6 through the water tank outlet pipe 10, the outlet of the circulating water pump 6 is connected to the inlet pipe 11 of the sealed trolley through the circulating water inlet pipe 7, the sealed trolley inlet pipe 11 is fixedly installed in the sealed trolley 17, the outlet end of the sealed trolley inlet pipe 11 is located at the bottom of the cooling chamber 18 of the sealed trolley, and the inlet end of the sealed trolley inlet pipe 11 extends to the sealed trolley The outside of 17 is connected with the circulating water inlet pipe 7, the sealed trolley outlet pipe 16 is fixedly installed in the sealed trolley 17, the water inlet end of the sealed trolley outlet pipe 16 is located at the top of the sealed trolley cooling chamber 18, the water outlet end of the sealed trolley outlet pipe 16 extends to the outside of the sealed trolley 17 and is connected with the water inlet of the closed cooling tower 4 through the circulating water outlet pipe 8, the water inlet electric valve 12 is installed on the circulating water inlet pipe 7, the water outlet electric valve 13 is installed on the circulating water outlet pipe 8, the emergency drain pipe 3 is connected with the circulating water inlet pipe 7 and the connection point of the emergency drain pipe 3 and the circulating water inlet pipe 7 is located between the water inlet electric valve 12 and the water inlet end of the sealed trolley inlet pipe 11, the exhaust valve 14 is installed on the circulating water outlet pipe 8, and the exhaust valve 14 is located between the water outlet electric valve 13 and the water outlet end of the sealed trolley outlet pipe 16.

[0010] Preferably, the circulating water inlet pipe 7 and the circulating water outlet pipe 8 both include a metal hose section 15 and a hard pipe section. The hard pipe section of the circulating water inlet pipe 7 is connected to the water inlet end of the sealed trolley water inlet pipe 11 through the metal hose section 15, and the hard pipe section of the circulating water outlet pipe 8 is connected to the water outlet end of the sealed trolley water outlet pipe 16 through the metal hose section 15.

[0011] Preferably, the water inlet electric valve 12 is installed on the hard pipe section of the circulating water inlet pipe 7 , and the water outlet electric valve 13 and the exhaust valve 14 are both installed on the hard pipe section of the circulating water outlet pipe 8 .

[0012] Preferably, the emergency drain pipe 3 is connected to the hard pipe section of the circulating water inlet pipe 7 .

[0013] Beneficial effects of the utility model:

[0014] 1. The utility model is provided with an emergency system. During the cooling process, if the sealed trolley leaks, the residual water in the cooling pipeline of the sealed trolley is discharged through the emergency system, thereby reducing the risk of safety accidents caused by the leakage of the sealed trolley, thereby reducing the impact of safety hazards.

[0015] 2. The utility model helps to reduce water resource consumption and achieve the purpose of reducing cooling costs by recycling cooling water.

[0016] 3. The utility model continuously introduces cooling water into the cooling chamber of the sealing trolley through the cooling system, so that the cooling water and the sealing trolley exchange heat, accelerates the cooling of the sealing trolley, reduces the influence of the high-temperature melt on the sealing trolley, improves the use effect of the sealing trolley, and reduces component loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the system structure of the utility model;

[0018] Figure 2 This is a side perspective view of the sealing trolley of the utility model.

[0019] In the figure, 1-emergency electric valve, 2-emergency water pump, 3-emergency drain pipe, 4-closed cooling tower, 5-circulating water tank, 6-circulating water pump, 7-circulating water inlet pipe, 8-circulating water outlet pipe, 9-cooling tower outlet pipe, 10-water tank outlet pipe, 11-sealed trolley inlet pipe, 12-water inlet electric valve, 13-water outlet electric valve, 14-exhaust valve, 15-metal hose section, 16-sealed trolley outlet pipe, 17-sealed trolley, 18-sealed trolley cooling chamber. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below in conjunction with specific embodiments.

[0021] like Figure 1-2 As shown, the circulating water cooling system includes a cooling system and an emergency system. The emergency system includes an emergency electric valve 1, an emergency water pump 2, an emergency drain pipe 3, and an exhaust valve 14. The emergency drain pipe 3 is connected to the cooling system. The emergency electric valve 1 and the emergency water pump 2 are installed on the emergency drain pipe 3 in sequence according to the direction of water flow. The exhaust valve 14 is installed in the cooling system.

[0022] When the sealing trolley 17 is working normally, the emergency electric valve 1, the emergency water pump 2 and the exhaust valve 14 are in a closed state, and the emergency system does not participate in the normal operation of the sealing trolley 17. When the sealing trolley 17 leaks, the cooling system is closed and the cooling system stops working. The emergency electric valve 1 and the exhaust valve 14 are opened, and the emergency water pump 2 is opened at the same time. The emergency water pump 2 pumps out the cooling water remaining in the cooling system and discharges it through the emergency drain pipe 3 to reduce the leakage of the sealing trolley 17, thereby reducing the risk of safety accidents caused by the leakage of the sealing trolley 17.

[0023] The cooling system comprises a closed cooling tower 4, a circulating water tank 5, a circulating water pump 6, a circulating water inlet pipe 7, a circulating water outlet pipe 8, a cooling tower outlet pipe 9, a water tank outlet pipe 10, a sealed trolley inlet pipe 11, a water inlet electric valve 12, a water outlet electric valve 13, and a sealed trolley outlet pipe 16. The outlet of the closed cooling tower 4 is connected with the inlet of the circulating water tank 5 through the cooling tower outlet pipe 9. The outlet of the circulating water tank 5 is connected with the inlet of the circulating water pump 6 through the water tank outlet pipe 10. The outlet of the circulating water pump 6 is connected with the sealed trolley inlet pipe 11 through the circulating water inlet pipe 7. The sealed trolley inlet pipe 11 is fixedly installed in the sealed trolley 17. The outlet end of the sealed trolley inlet pipe 11 is located at the bottom of the sealed trolley cooling chamber 18. The inlet end of the sealed trolley inlet pipe 11 extends to the sealed trolley 17. The outside is connected to the circulating water inlet pipe 7, the sealed trolley outlet pipe 16 is fixedly installed in the sealed trolley 17, the water inlet end of the sealed trolley outlet pipe 16 is located at the top of the sealed trolley cooling chamber 18, the water outlet end of the sealed trolley outlet pipe 16 extends to the outside of the sealed trolley 17 and is connected to the water inlet of the closed cooling tower 4 through the circulating water outlet pipe 8, the water inlet electric valve 12 is installed on the circulating water inlet pipe 7, the water outlet electric valve 13 is installed on the circulating water outlet pipe 8, the emergency drain pipe 3 is connected to the circulating water inlet pipe 7 and the connection point of the emergency drain pipe 3 and the circulating water inlet pipe 7 is located between the water inlet electric valve 12 and the water inlet end of the sealed trolley inlet pipe 11, the exhaust valve 14 is installed on the circulating water outlet pipe 8, and the exhaust valve 14 is located between the water outlet electric valve 13 and the water outlet end of the sealed trolley outlet pipe 16.

[0024] During the normal operation of the sealed trolley 17, the closed cooling tower 4 and the circulating water pump 6 are both in the starting state, the water inlet electric valve 12 and the water outlet electric valve 13 are in the open state, the cooling water flows out of the closed cooling tower 4, and flows into the circulating water tank 5 through the cooling tower outlet pipe 9 for storage, the cooling water stored in the circulating water tank 5 is pumped out by the action of the circulating water pump 6, flows into the circulating water pump 6 through the water tank outlet pipe 10, and then through the pumping action of the circulating water pump 6, through the circulating water inlet pipe 7, the cooling water enters the sealed trolley water inlet pipe 11, and the sealed trolley water inlet pipe 11 injects the cooling water into the sealed trolley cooling chamber 18, exchanges heat with the sealed trolley 17, the cooling water is heated, and the temperature of the sealed trolley 17 is reduced, and then the cooling water fills the sealed trolley cooling chamber 18, flows out through the sealed trolley outlet pipe 16, and flows back to the closed cooling tower 4 through the circulating water outlet pipe 8, then the cooling water flows in the sealed trolley cooling chamber 18, and continuously exchanges heat with the sealed trolley 17. The closed cooling tower 4 cools the heated cooling water again through heat exchange, and the cooled cooling water flows out of the closed cooling tower 4, and flows into the circulating water tank 5 again through the cooling tower outlet pipe 9 for storage, so that the cooling water is heated in the sealed trolley cooling chamber 18, and then cooled by the closed cooling tower 4, and the cooled cooling water flows into the sealed trolley cooling chamber 18 for heat exchange to reduce the temperature of the sealed trolley 17, and the cooling water is recycled to reduce water resource consumption. Since the sealed trolley 17 needs to be displaced when it works normally, according to actual needs, the circulating water inlet pipe 7 and the circulating water outlet pipe 8 can be made of soft materials, or the corresponding joints can use joints with variable bending degrees.

[0025] When the sealed trolley 17 leaks, the closed cooling tower 4, the circulating water pump 6, the water inlet electric valve 12, and the water outlet electric valve 13 are closed. At this time, the cooling water is no longer circulated. However, since there is cooling water remaining in the cooling chamber 18 of the sealed trolley, if no measures are taken, the cooling water remaining in the cooling chamber 18 of the sealed trolley will all leak out, which is very likely to cause a safety accident. Therefore, when the sealed trolley leaks, the emergency electric valve 1 and the exhaust valve 14 are opened, and the emergency water pump 2 starts to work, and the cooling water remaining in the cooling chamber 18 of the sealed trolley is circulated. The water is pumped into the emergency drain pipe 3 through the emergency drain pipe 3 to avoid continuous water leakage in the sealed trolley 17 and reduce the risk of safety accidents. When the water inlet electric valve 12 and the water outlet electric valve 13 are closed, the cooling chamber 18 of the sealed trolley is in a closed state and the exhaust valve 14 needs to be opened to pump out the cooling water in the cooling chamber 18 of the sealed trolley. Moreover, exhausting the gas is beneficial to improving the water transportation efficiency and protecting the pipeline from the threat of deformation or rupture, so that the cooling water in the cooling chamber 18 of the sealed trolley can be quickly pumped out to further reduce the amount of water leakage.

[0026] The circulating water inlet pipe 7 and the circulating water outlet pipe 8 both include a metal hose section 15 and a hard pipe section. The hard pipe section of the circulating water inlet pipe 7 is connected to the water inlet end of the sealed trolley water inlet pipe 11 through the metal hose section 15, and the hard pipe section of the circulating water outlet pipe 8 is connected to the water outlet end of the sealed trolley water outlet pipe 16 through the metal hose section 15.

[0027] The sealing trolley 17 needs to move during normal operation, and the metal hose section 15 will not hinder the movement of the sealing trolley 17 .

[0028] The water inlet electric valve 12 is installed on the hard pipe section of the circulating water inlet pipe 7 , and the water outlet electric valve 13 and the exhaust valve 14 are both installed on the hard pipe section of the circulating water outlet pipe 8 .

[0029] The emergency drain pipe 3 is connected to the hard pipe section of the circulating water inlet pipe 7 .

[0030] Working process of the utility model: when the sealed trolley is working normally, the closed cooling tower and the circulating water pump are in working state, the water inlet electric valve and the water outlet electric valve are in the open state, the cooling water flows out of the closed cooling tower into the circulating water tank, and then flows out of the circulating water tank and is pumped to the cooling cavity of the sealed trolley. The cooling water exchanges heat with the sealed trolley in the cooling cavity of the sealed trolley to reduce the temperature of the sealed trolley. At the same time, the heated cooling water flows back to the closed cooling tower. After the closed cooling tower cools down the cooling water, the cooling water has a cooling function again and flows into the circulating water tank again for Recycling: When the sealed trolley leaks, the closed cooling tower and circulating water pump are closed, and the water inlet electric valve and the water outlet electric valve are closed at the same time, and the cooling water no longer circulates. However, due to the previous circulating cooling work, cooling water will remain in the cooling chamber of the sealed trolley. The emergency electric valve and exhaust valve are opened, and the emergency water pump is opened at the same time to pump the remaining cooling water into the emergency drain pipe and discharge it, thereby effectively reducing the amount of water leakage and reducing the risk of safety accidents. During the process, each electric valve and closed cooling tower, water pump and other electric devices can be controlled by a PLC control system and other systems.

[0031] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. A PS converter sealed trolley circulating water cooling system, characterized in that: The circulating water cooling system comprises a cooling system and an emergency system. The emergency system comprises an emergency electric valve (1), an emergency water pump (2), an emergency drain pipe (3), and an exhaust valve (14). The emergency drain pipe (3) is connected to the cooling system. The emergency electric valve (1) and the emergency water pump (2) are sequentially installed on the emergency drain pipe (3) according to the direction of water flow. The exhaust valve (14) is installed in the cooling system.

2. A PS converter sealed trolley circulating water cooling system according to claim 1, characterized in that: The cooling system comprises a closed cooling tower (4), a circulating water tank (5), a circulating water pump (6), a circulating water inlet pipe (7), a circulating water outlet pipe (8), a cooling tower outlet pipe (9), a water tank outlet pipe (10), a sealing trolley inlet pipe (11), an inlet electric valve (12), an outlet electric valve (13), and a sealing trolley outlet pipe (16); the outlet of the closed cooling tower (4) is connected to the inlet of the circulating water tank (5) via the cooling tower outlet pipe (9). The water outlet of the circulating water tank (5) is communicated with the water inlet of the circulating water pump (6) through the water tank outlet pipe (10), and the water outlet of the circulating water pump (6) is communicated with the water inlet pipe (11) of the sealing trolley through the circulating water inlet pipe (7). The water inlet pipe (11) of the sealing trolley is fixedly installed in the sealing trolley (17), and the water outlet end of the water inlet pipe (11) of the sealing trolley is located at the bottom of the cooling chamber (18) of the sealing trolley, and the water inlet end of the water inlet pipe (11) of the sealing trolley extends to the sealing trolley (17). 7) is connected to the outside of the sealed trolley (17) and the circulating water inlet pipe (7); the sealed trolley outlet pipe (16) is fixedly installed in the sealed trolley (17); the water inlet end of the sealed trolley outlet pipe (16) is located at the top of the sealed trolley cooling chamber (18); the water outlet end of the sealed trolley outlet pipe (16) extends to the outside of the sealed trolley (17) and is connected to the water inlet of the closed cooling tower (4) through the circulating water outlet pipe (8); the water inlet electric valve (12) is installed on the circulating water inlet pipe (7); The water outlet electric valve (13) is installed on the circulating water outlet pipe (8), the emergency drain pipe (3) is connected to the circulating water inlet pipe (7), and the connection point between the emergency drain pipe (3) and the circulating water inlet pipe (7) is located between the water inlet electric valve (12) and the water inlet end of the sealing trolley water inlet pipe (11), and the exhaust valve (14) is installed on the circulating water outlet pipe (8), and the exhaust valve (14) is located between the water outlet electric valve (13) and the water outlet end of the sealing trolley water outlet pipe (16).

3. A PS converter sealed trolley circulating water cooling system according to claim 2, characterized in that: The circulating water inlet pipe (7) and the circulating water outlet pipe (8) both comprise a metal hose section (15) and a hard pipe section. The hard pipe section of the circulating water inlet pipe (7) is connected to the water inlet end of the sealed trolley water inlet pipe (11) via the metal hose section (15), and the hard pipe section of the circulating water outlet pipe (8) is connected to the water outlet end of the sealed trolley water outlet pipe (16) via the metal hose section (15).

4. A PS converter sealed trolley circulating water cooling system according to claim 3, characterized in that: The water inlet electric valve (12) is installed on the hard pipe section of the circulating water inlet pipe (7), and the water outlet electric valve (13) and the exhaust valve (14) are both installed on the hard pipe section of the circulating water outlet pipe (8).

5. A PS converter sealed trolley circulating water cooling system according to claim 3, characterized in that: The emergency drainage pipe (3) is in communication with the hard pipe section of the circulating water inlet pipe (7).

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