A system for reducing workshop ambient temperature

Abstract

The present invention relates to a system for reducing the ambient temperature of a workshop, and in particular to a system for reducing the ambient temperature of an open roasting furnace workshop in the carbon industry that produces anodes, cathodes, electrodes for aluminum, and carbon graphitization materials. A bellows is placed above each fire hole of the forced cooling section that discharges high-temperature flue gas to the outside, and a high-temperature heat exchanger is arranged inside the bellows. The inlet end of the high-temperature heat exchanger is connected to a water inlet branch pipe, which is connected to a water inlet main pipe, and the outlet end of the high-temperature heat exchanger is connected to a return water branch pipe, which is connected to a return water main pipe. Advantages and effects of the present invention: The present invention can discharge the high-temperature flue gas discharged from the forced cooling section into the workshop, reduce the temperature after heat exchange, and discharge it into the workshop, which can not only greatly reduce the ambient temperature of the workshop, ensure the normal operation of the equipment, and improve production stability, but also recover heat, produce a large amount of hot water, save energy and increase efficiency, and kill two birds with one stone.

Description

Technical Field

[0001] The invention relates to a system for reducing the ambient temperature of a workshop, and in particular to a system for reducing the ambient temperature of an open roasting furnace workshop in the carbon industry for producing anodes, cathodes, electrodes for aluminum and carbon graphitization materials. Background Art

[0002] In recent years, the production capacity of electrolytic aluminum has shown a blowout growth, and the requirements for prebaked anodes have gradually increased. As the "heart" of the electrolytic cell, the production stability of prebaked anodes has also played a very important role, especially in supporting enterprises. Under the current production process of open anode baking furnace, the ambient temperature in the workshop is high, especially in Xinjiang. In summer, the working temperature of the multi-function crane in the workshop reaches up to 70℃, which has seriously exceeded the temperature range of stable operation of the precision instruments on the crane. Therefore, the crane often breaks down, which seriously affects the production stability. At the same time, the labor intensity of the crane workers is also very high, and the labor efficiency is low. The main reason for the above problems is that the high-temperature gas from the forced cooling section under the current baking process is directly discharged into the workshop, causing the ambient temperature of the workshop to be very high. The gas comes from the air blown in by the forced cooling rack. After entering the fire channel, it forms a high-temperature gas after heat exchange with the carbon blocks in the cooling zone. The temperature is generally between 150-180℃. Summary of the invention

[0003] The present invention is a system for reducing the ambient temperature of the workshop proposed to solve the above problems. Its purpose is to cool the high-temperature gas from the forced cooling section through a high-efficiency heat exchanger before discharging it from the fire channel and entering the workshop, with the temperature reduced to below 100°C. This can significantly reduce the ambient temperature of the workshop, increase the life of the equipment and production stability, and recover heat to produce hot water.

[0004] To achieve the above-mentioned purpose, the present invention provides a system for reducing the ambient temperature of a workshop. A bellows is placed above each fire hole in the forced cooling section that discharges high-temperature smoke to the outside. A high-temperature heat exchanger is arranged inside the bellows. The inlet end of the high-temperature heat exchanger is connected to a water inlet branch pipe, which is connected to a water inlet main pipe. The outlet end of the high-temperature heat exchanger is connected to a return water branch pipe, which is connected to the return water main pipe.

[0005] The high-temperature heat exchanger is a U-shaped high-efficiency heat exchange tube with multiple fins.

[0006] The inlet end of the high-temperature heat exchanger is connected to the water inlet branch pipeline through a water inlet soft connection.

[0007] The outlet end of the high-temperature heat exchanger is connected to the return water branch pipeline through a return water soft connection.

[0008] The water inlet branch pipe is provided with a ball valve.

[0009] The water inlet main pipeline is provided with a pressure gauge.

[0010] The water return main pipeline is provided with an exhaust valve.

[0011] The bellows, high-temperature heat exchanger, water inlet branch pipe, water inlet main pipe, water return branch pipe and water return main pipe form a system, and each system is configured in a forced cooling furnace chamber.

[0012] The water inlet main pipeline and the water return main pipeline are arranged in the middle of each system.

[0013] The bellows can freely expand and contract to cover the fire hole after the fire channel is deformed or sunk.

[0014] Advantages and effects of the present invention: The present invention can discharge the high-temperature flue gas discharged into the workshop from the forced cooling section at a lower temperature after heat exchange and discharge it into the workshop, which can not only greatly reduce the ambient temperature of the workshop, ensure the normal operation of the equipment, and improve production stability, but also recover heat, produce a large amount of hot water, save energy and increase efficiency, thus killing two birds with one stone. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of the present invention.

[0016] Figure 2 It is a side view of the present invention.

[0017] In the figure: 1. Casting material; 2. Fire hole; 3. Return water main pipe; 4. Return water branch pipe; 5. Return water flexible connection; 6. High-efficiency heat exchanger; 7. Inlet water flexible connection; 8. Inlet water branch pipe; 9. Inlet water main pipe; 10. Bellows; 11. Ball valve; 12. Exhaust valve; 13. Pressure gauge. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.

[0019] As shown in the figure, the present invention is a system for reducing the ambient temperature of a workshop. A bellows 10 is placed on each fire hole 2 for discharging high-temperature smoke to the outside in the forced cooling section. The fire hole 2 is cast by a castable 1. A high-temperature heat exchanger 6 is arranged in the bellows 2. The inlet end of the high-temperature heat exchanger 6 is connected to a water inlet branch pipe 8, which is connected to a water inlet main pipe 9. The outlet end of the high-temperature heat exchanger 6 is connected to a water return branch pipe 4, which is connected to a water return main pipe 3.

[0020] The high temperature heat exchanger 6 is a U-shaped high efficiency heat exchange tube with multiple fins.

[0021] The inlet end of the high-temperature heat exchanger 6 is connected to the water inlet branch pipe 8 through a water inlet flexible connection 7 .

[0022] The outlet end of the high-temperature heat exchanger 6 is connected to the return water branch pipe 4 through a return water flexible connection 5 .

[0023] The water inlet branch pipe 8 is provided with a ball valve 11 .

[0024] The water inlet main pipe 9 is provided with a pressure gauge 13 .

[0025] The return water main pipe 3 is provided with an exhaust valve 12 .

[0026] The bellows 10, high temperature heat exchanger 6, water inlet branch pipe 8, water inlet main pipe 9, water return branch pipe 4 and water return main pipe 3 form a system, and each system is configured in a forced cooling furnace chamber.

[0027] The water inlet main pipe 9 and the water return main pipe 3 are arranged in the middle of each system.

[0028] The bellows 10 can freely expand and contract to cover the fire hole 2 after the fire channel is deformed or sunk.

[0029] The present invention reduces the ambient temperature of the workshop by exchanging the heat of the high-temperature flue gas discharged from the forced cooling section through the fire hole of the fire channel through the system and then discharging it into the workshop. The water inlet main pipe connected to the external water supply system is divided into a certain number of water inlet branch pipes, which enter the corresponding high-efficiency heat exchangers respectively, and then enter the return water main pipe through the return water branch pipe, and finally enter the external return water system.

[0030] The bellows is located above each fire hole. A bellows of a certain height is placed so that it can freely expand and contract to cover the fire hole after the fire channel is deformed or sunk. The high-temperature flue gas enters the lower bellows and is discharged from the upper end of the bellows after heat exchange.

[0031] The return water main pipe is installed with a certain slope of 2‰~5‰ to ensure that the steam can be discharged smoothly, and an exhaust valve is installed on the pipe.

Claims

1. A system for reducing the ambient temperature of a workshop, characterized in that A bellows is placed above each fire hole of the forced cooling section that discharges high-temperature smoke to the outside, and a high-temperature heat exchanger is arranged in the bellows. The inlet end of the high-temperature heat exchanger is connected to the water inlet branch pipe, the water inlet branch pipe is connected to the water inlet main pipe, and the outlet end of the high-temperature heat exchanger is connected to the return water branch pipe, and the return water branch pipe is connected to the return water main pipe; the bellows, high-temperature heat exchanger, water inlet branch pipe, water inlet main pipe, return water branch pipe and return water main pipe form a system, and each system is configured in a forced cooling furnace chamber; the high-temperature heat exchanger is a U-shaped high-efficiency heat exchange tube with multiple fins; the bellows can freely expand and contract to cover the fire hole after the fire channel is deformed or sunk.

2. A system for reducing workshop ambient temperature according to claim 1, characterized in that The inlet end of the high-temperature heat exchanger is connected to the water inlet branch pipeline through a water inlet soft connection.

3. A system for reducing workshop ambient temperature according to claim 1, characterized in that The outlet end of the high-temperature heat exchanger is connected to the return water branch pipeline through a return water soft connection.

4. A system for reducing workshop ambient temperature according to claim 2, characterized in that The water inlet branch pipe is provided with a ball valve.

5. A system for reducing workshop ambient temperature according to claim 1, characterized in that The water inlet main pipeline is provided with a pressure gauge.

6. A system for reducing workshop ambient temperature according to claim 1, characterized in that The water return main pipeline is provided with an exhaust valve.

7. A system for reducing workshop ambient temperature according to claim 1, characterized in that The water inlet main pipeline and the water return main pipeline are arranged in the middle of each system.

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