Device for dehydrating electrolytic aluminum flue gas wet desulphurization product

Abstract

The utility model relates to the technical field of dehydration equipment, in particular to a device for dehydrating electrolytic aluminum flue gas wet desulphurization products, which comprises a bottom plate, two side plates are fixedly connected to the upper end face of the bottom plate, and a drying box is fixedly connected between the two side plates. A plurality of evenly-distributed stirring rods are fixedly connected to the outer wall of the rotating shaft, a top plate located above the drying box is fixedly connected between the two side plates, a heater is installed on the lower end face of the top plate, products make uniform contact with hot air, the drying effect is improved, water vapor generated in the drying process enters the condensation box through a steam pipe, and the condensation box is heated through the heater. The water pump is started to pump cold water in the water tank into the water catchment plate through the water guide pipe, and the cold water is further sprayed out through the multiple nozzles, so that the cold water fully contacts with water vapor, the water vapor becomes water drops to the bottom end in the condensation tank when encountering the cold water, and the water drops are discharged and collected through the drainage pipe, water resources can be effectively saved, and waste of the water resources is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dehydration equipment, in particular to a device for dehydrating a product of wet desulfurization of electrolytic aluminum flue gas. Background Art

[0002] The characteristic of wet desulfurization is that the desulfurization system is located at the end of the flue and after the dust collector. The reaction temperature of the desulfurization process is lower than the dew point, so the flue gas after desulfurization needs to be reheated before it can be discharged. Because it is a gas-liquid reaction, its desulfurization reaction speed is fast, the efficiency is high, and the utilization rate of desulfurization additives is high. For example, when lime is used as a desulfurizer, when Ca / S=1, a desulfurization rate of 90% can be achieved, which is suitable for the flue gas of large coal-fired power plants;

[0003] The wet desulfurization product contains a lot of water. In order to better clean it, it needs to be dehydrated. Generally, it is placed in a drying furnace for drying, but the drying furnace cannot continue to dry, which affects the drying efficiency.

[0004] Chinese patent (patent number: CN213454809U, discloses a device for dehydrating the product of wet desulfurization of electrolytic aluminum flue gas), which enables the installation frame to drive the support rod to operate through the operation of the power mechanism, so that the support rod can make the pressure plate operate smoothly under the action of the U-shaped rod, and the intermittent rotation of the heater can be well promoted by the action of the plug rod. The intermittent rotation of the heater can well drive the first synchronous wheel to drive the spiral feed rod to rotate, which is convenient for the smooth and intermittent movement of the material in the tank body, and can provide a good working environment for the heater, which is convenient for improving the drying effect and quality:

[0005] Although the above device can improve the drying effect and quality, the water vapor generated during the drying process is directly extracted and discharged through the vacuum pump. As a form of water, direct discharge of water vapor will cause a waste of water resources. Utility Model Content

[0006] The utility model aims to provide a device for dehydrating the products of wet desulfurization of electrolytic aluminum flue gas, which has the characteristics of facilitating the collection and conversion of water vapor, effectively saving water resources and avoiding waste of water resources.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for dehydrating the product of wet desulfurization of electrolytic aluminum flue gas, comprising a bottom plate, the upper end surface of the bottom plate is fixedly connected to two side plates, a drying box is fixedly connected between the two side plates, the interior of the drying box is rotatably connected to a rotating shaft, and the outer wall of the rotating shaft is fixedly connected to a plurality of evenly distributed stirring rods;

[0008] A top plate located above the drying box is fixedly connected between the two side plates, a heater is installed on the lower end surface of the top plate, a fan connected to the heater is installed on the upper end surface of the heater, and a guide pipe is connected between the bottom end of the heater and the drying box;

[0009] A condensing box is arranged below the drying box, a steam pipe is connected between the top of the drying box and the condensing box, a water collecting plate is fixedly connected to the inner top of the condensing box, and a plurality of evenly distributed nozzles are arranged on the lower end surface of the water collecting plate.

[0010] In order to facilitate the spraying of cold water inside the condensation box, as a preferred device for dehydrating the wet desulfurization products of electrolytic aluminum flue gas in the utility model, a water tank is fixedly connected to the right side of the upper end surface of the bottom plate, and a water pump connected to the water collecting plate through a pipeline is installed on the upper end surface of the condensation box, and a water pipe is connected between the water pump and the water tank.

[0011] In order to improve the condensation effect, as a preferred device for dehydrating the products of wet desulfurization of electrolytic aluminum flue gas in the utility model, the side wall of the condensation box is provided with a semiconductor refrigeration sheet.

[0012] In order to facilitate the discharge of condensed water, as a preferred device for dehydrating the products of wet desulfurization of electrolytic aluminum flue gas in the utility model, a drain pipe is connected to the lower part of the outer wall of the condensation box, and a valve is provided on the outer wall of the drain pipe.

[0013] In order to facilitate the discharge of products, as a preferred device for dehydrating the products of wet desulfurization of electrolytic aluminum flue gas in the utility model, the outer wall of the drying box is provided with a discharge door.

[0014] In order to provide driving force for the stirring rod, as a preferred device for dehydrating the products of wet desulfurization of electrolytic aluminum flue gas of the utility model, a motor is installed on the outer wall of one of the side plates, the output end of the motor is fixedly connected to the rotating shaft, and a vacuum fan is arranged on the outer wall of the steam pipe.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] The product is placed into the drying box through the discharge door, and the heater and the fan are started. The fan guides the hot air heated by the heater into the drying box through the guide pipe, so as to dry the product. At the same time, the motor is started to drive the shaft to rotate, and the shaft drives multiple stirring rods to stir the product, so that the product is in uniform contact with the hot air, thereby improving the drying effect. The water vapor generated during the drying process enters the condensation box through the steam pipe, and the water pump is started to pump the cold water inside the water tank into the water collecting plate through the water guide pipe, and further sprayed out through multiple nozzles, so that the cold water is fully in contact with the water vapor. The water vapor meets the cold water and turns into water droplets that drip on the bottom of the condensation box, and is discharged and collected through the drain pipe, thereby effectively saving water resources and avoiding waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the overall cross-sectional structural diagram of the utility model;

[0018] Figure 2 This is the overall external structure diagram of the utility model;

[0019] Figure 3 This is a bottom view of the structure of the water collecting plate of the utility model.

[0020] In the figure: 1. bottom plate; 2. side plate; 3. drying box; 4. rotating shaft; 5. stirring rod; 6. top plate; 7. heater; 8. fan; 9. guide pipe; 10. condenser box; 11. steam pipe; 12. water collecting plate; 13. nozzle; 14. water tank; 15. water pump; 16. water guide pipe; 17. semiconductor cooling plate; 18. drain pipe; 19. discharge door; 20. motor; 21. vacuum pump. DETAILED DESCRIPTION

[0021] See also Figures 1 to 3 , a device for dehydrating the product of wet desulfurization of electrolytic aluminum flue gas, comprising a bottom plate 1, two side plates 2 are fixedly connected to the upper end surface of the bottom plate 1, a drying box 3 is fixedly connected between the two side plates 2, a rotating shaft 4 is rotatably connected inside the drying box 3, and a plurality of evenly distributed stirring rods 5 are fixedly connected to the outer wall of the rotating shaft 4;

[0022] A top plate 6 located above the drying box 3 is fixedly connected between the two side plates 2, a heater 7 is installed on the lower end surface of the top plate 6, a fan 8 connected to the heater 7 is installed on the upper end surface of the heater 7, and a guide pipe 9 is connected between the bottom end of the heater 7 and the drying box 3;

[0023] A condensation box 10 is arranged below the drying box 3, a steam pipe 11 is connected between the top of the drying box 3 and the condensation box 10, a water collecting plate 12 is fixedly connected to the inner top of the condensation box 10, and a plurality of evenly distributed nozzles 13 are arranged on the lower end surface of the water collecting plate 12.

[0024] In this embodiment: the product is placed into the drying box 3 through the discharge door 19, the heater 7 and the fan 8 are started, and the fan 8 guides the hot air heated by the heater 7 into the drying box 3 through the guide pipe 9, so as to dry the product. At the same time, the motor 20 is started to drive the rotating shaft 4 to rotate, and the rotating shaft 4 drives multiple stirring rods 5 to stir the product, so that the product is in uniform contact with the hot air, thereby improving the drying effect. The water vapor generated during the drying process enters the condensation box 10 through the steam pipe 11, and the water pump 15 is started to pump the cold water in the water tank 14 into the water collecting plate 12 through the water guide pipe 16, and further sprayed out through multiple nozzles 13, so that the cold water is fully in contact with the water vapor. The water vapor meets the cold water and becomes water droplets that drip on the bottom of the condensation box 10, and is discharged and collected through the drain pipe 18, thereby effectively saving water resources and avoiding waste of water resources.

[0025] As a technical optimization solution of the utility model, a water tank 14 is fixedly connected to the right side of the upper end surface of the base plate 1, and a water pump 15 connected to the water collecting plate 12 through a pipeline is installed on the upper end surface of the condensation tank 10, and a water pipe 16 is connected between the water pump 15 and the water tank 14.

[0026] In this embodiment, the water pump 15 is started to pump the cold water in the water tank 14 into the water collecting plate 12 through the water pipe 16, and further sprayed out through the multiple nozzles 13, so that the cold water is fully in contact with the water vapor.

[0027] As a technical optimization solution of the present invention, a semiconductor cooling sheet 17 is provided on the side wall of the condensation box 10 .

[0028] In this embodiment: a semiconductor refrigeration sheet 17 is provided on the side wall of the condensation box 10, the refrigeration end of the semiconductor refrigeration sheet 17 is located inside the condensation box 10, and the heat release end is located outside the condensation box 10, so as to further cool the inside of the condensation box 10, thereby improving the water conversion rate.

[0029] As a technical optimization solution of the utility model, a drain pipe 18 is connected to the lower part of the outer wall of the condensation tank 10 , and a valve is arranged on the outer wall of the drain pipe 18 .

[0030] In this embodiment: the drain pipe 18 is convenient for connection with an external pipeline to facilitate the discharge and collection of condensed water, and the valve is used to control the opening and closing of the drain pipe 18.

[0031] As a technical optimization solution of the present invention, a discharge door 19 is provided on the outer wall of the drying box 3 .

[0032] In this embodiment: a discharge door 19 is provided on the outer wall of the drying box 3, and the discharge door 19 is provided to facilitate feeding and discharging.

[0033] As a technical optimization solution of the utility model, a motor 20 is installed on the outer wall of one of the side panels 2 , the output end of the motor 20 is fixedly connected to the rotating shaft 4 , and a vacuum pump 21 is arranged on the outer wall of the steam pipe 11 .

[0034] In this embodiment, the output end of the motor 20 is fixedly connected to the rotating shaft 4, so as to drive the rotating shaft 4 to rotate, thereby driving the plurality of stirring rods 5 to rotate and stir. By providing the vacuum pump 21, the steam extraction efficiency is improved.

[0035] Working principle: the product is placed into the drying box 3 through the discharge door 19, the heater 7 and the fan 8 are started, and the fan 8 guides the hot air heated by the heater 7 into the drying box 3 through the guide pipe 9, so as to dry the product. At the same time, the motor 20 is started to drive the rotating shaft 4 to rotate, and the rotating shaft 4 drives multiple stirring rods 5 to stir the product, so that the product is in uniform contact with the hot air, thereby improving the drying effect. The water vapor generated during the drying process enters the condensation box 10 through the steam pipe 11, and the water pump 15 is started to pump the cold water in the water tank 14 into the water collecting plate 12 through the water guide pipe 16, and further sprayed out through multiple nozzles 13, so that the cold water is fully in contact with the water vapor. The water vapor meets the cold water and turns into water droplets that fall on the bottom of the condensation box 10, and is discharged and collected through the drain pipe 18, thereby effectively saving water resources and avoiding waste of water resources.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for dehydrating a product of wet desulfurization of aluminum electrolytic flue gas, comprising a bottom plate (1), characterized in that: The upper end surface of the bottom plate (1) is fixedly connected to two side plates (2), a drying box (3) is fixedly connected between the two side plates (2), a rotating shaft (4) is rotatably connected inside the drying box (3), and a plurality of evenly distributed stirring rods (5) are fixedly connected to the outer wall of the rotating shaft (4); A top plate (6) located above the drying box (3) is fixedly connected between the two side plates (2); a heater (7) is installed on the lower end surface of the top plate (6); a fan (8) connected to the heater (7) is installed on the upper end surface of the heater (7); and a flow guide pipe (9) is connected between the bottom end of the heater (7) and the drying box (3); A condensation box (10) is arranged below the drying box (3); a steam pipe (11) is connected between the top of the drying box (3) and the condensation box (10); a water collecting plate (12) is fixedly connected to the top of the interior of the condensation box (10); and a plurality of evenly distributed nozzles (13) are arranged on the lower end surface of the water collecting plate (12).

2. The device for dehydrating the product of wet desulfurization of electrolytic aluminum flue gas according to claim 1, characterized in that: A water tank (14) is fixedly connected to the right side of the upper end surface of the base plate (1), and a water pump (15) connected to the water collecting plate (12) through a pipeline is installed on the upper end surface of the condensation tank (10), and a water guide pipe (16) is connected between the water pump (15) and the water tank (14).

3. The device for dehydrating the product of wet desulfurization of aluminum electrolysis flue gas according to claim 1, characterized in that: The side wall of the condensation box (10) is provided with a semiconductor refrigeration sheet (17).

4. The device for dehydrating the product of wet desulfurization of aluminum electrolysis flue gas according to claim 1, characterized in that: A drain pipe (18) is connected to the lower part of the outer wall of the condensation tank (10), and a valve is provided on the outer wall of the drain pipe (18).

5. The device for dehydrating the product of wet desulfurization of aluminum electrolytic flue gas according to claim 1, characterized in that: The outer wall of the drying box (3) is provided with a discharge door (19).

6. The device for dehydrating the product of wet desulfurization of aluminum electrolysis flue gas according to claim 1, characterized in that: A motor (20) is installed on the outer wall of one of the side panels (2), the output end of the motor (20) is fixedly connected to the rotating shaft (4), and an air extractor (21) is arranged on the outer wall of the steam pipe (11).

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