CN218835568U - Aluminum cell overhaul slag treatment device - Google Patents

Abstract

The utility model is suitable for an aluminium electroloysis technical field especially relates to an aluminium cell overhaul sediment processing apparatus, including the reaction tank, the reaction tank is connected with inlet tube and outlet pipe, the inside baffle that is equipped with of reaction tank, the inside hollow tube that has run through of baffle, the hollow tube tip is closed, wherein the hollow tube upper end runs through the reaction tank, the reaction tank top is equipped with the water pump, and the water pump is connected with the connecting pipe, and the connecting pipe runs through the hollow tube top and is connected with its rotation, the hollow tube side is equipped with a plurality of branch pipes, and branch pipe one end communicates with each other with the hollow tube, and the other end is equipped with the liquid outlet; this device is when handling the aluminium cell overhaul sediment, starts the water pump, and under the effect of water pump, inside the flocculation medicament entered into the hollow tube through the connecting pipe, followed the liquid outlet discharge of branch pipe tip afterwards, the effectual area of contact who has improved flocculation medicament and overhaul sediment liquid, and then improved the sedimentation rate of flocculation medicament to the fluoride.

Description

An aluminum electrolytic cell overhaul slag treatment device

technical field

The utility model relates to the technical field of aluminum electrolysis, in particular to a treatment device for overhaul slag of an aluminum electrolytic cell.

Background technique

my country is a big country in the aluminum industry. The output of alumina and electrolytic aluminum accounts for more than 40% of the world. In the electrolytic aluminum industry, the aluminum electrolytic cell generally needs to be overhauled after 5-6 years of use. During the overhaul, the slag is removed from the electrolytic cell, which is Electrolyzer overhaul slag, electrolyzer overhaul slag contains soluble fluoride, which needs to be treated according to environmental protection requirements.

When dealing with these fluorides, a defluorination reaction tank is required for flocculation and precipitation treatment. After adding the flocculation agent, it needs to be stirred evenly to ensure the settlement effect. For example, Chinese patent CN211813616U discloses a defluorination reaction tank for electrolytic aluminum overhaul slag treatment. The flocculation agent is sprayed inside and outside the overhaul slag, and the flocculation agent and the slag mixture are partially mixed in advance when spraying, and then stirred by the stirring frame to improve the uniform mixing efficiency of the flocculation agent and slag, ensuring Sedimentation effect of fluoride reaction in overhaul slag.

However, this device needs to pre-partially mix the flocculation agent and the slag material mixture, and then stir the two through the stirring frame, and the efficiency is low.

Utility model content

The purpose of the utility model is to provide a treatment device for overhaul slag of an aluminum electrolytic cell, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A treatment device for overhauling slag of an aluminum electrolytic cell, comprising a reaction pool, the reaction pool is connected with a water inlet pipe and an outlet pipe, a baffle is arranged inside the reaction pool, a hollow tube runs through the inside of the baffle, and the end of the hollow tube is closed. The upper end of the hollow tube runs through the reaction tank, and a water pump is provided on the top of the reaction tank. The water pump is connected with a connecting pipe, and the connecting pipe runs through the top of the hollow tube and is connected to it in rotation. The hollow tube is connected with a rotating mechanism, which is used to drive the hollow pipe. When rotating, several branch pipes are arranged on the side of the hollow pipe, one end of the branch pipe communicates with the hollow pipe, and the other end is provided with a liquid outlet.

Further: the rotating mechanism includes a motor arranged on the top of the reaction pool, and the motor is connected with the hollow pipe through the first gear set.

Further: the hollow tube is divided into an upper end and a lower end, the upper end is inserted into the lower end and slidably connected with it, the lower end is connected with the branch pipe, wherein the lower end is connected with a vibration mechanism, and the vibration mechanism is used to drive the lower end to vibrate up and down, wherein the upper end is inserted into the lower end A limiting block is arranged at one end inside, and a limiting groove is arranged on the inner wall of the lower end, and the limiting block is located inside the limiting groove and is slidably connected with it.

Further: the vibrating mechanism includes a fixed plate arranged outside the lower end, the lower end is rotationally connected with the fixed plate through a bearing, wherein the fixed plate is fixedly connected with a strut, the strut penetrates through the baffle plate and is slidably connected with it, and the inside of the reaction pool is set Limiting plate, a rotating rod runs through the inside of the limiting plate, one end of the rotating rod is connected to the upper end through the second gear set, the other end is provided with a turntable, the surface of the turntable is provided with an eccentric protrusion, and the protrusion is slidingly connected to the limit frame , the limit frame is fixedly connected with the pole.

Further: the inside of the fixing plate runs through the limiting rod, and the limiting rod is fixedly connected with the baffle, wherein a spring is arranged outside the limiting rod, one end of the spring is connected with the baffle, and the other end is connected with the fixing plate.

Compared with the prior art, the beneficial effect of the utility model is that the device can also mix and stir the flocculation agent and the overhaul slag liquid while discharging the flocculation agent, effectively increasing the contact area between the flocculation agent and the overhaul slag liquid, Thereby further improving the precipitation rate of flocculation agent to fluoride.

Description of drawings

Fig. 1 is a front view of the overall structure of an aluminum electrolytic cell overhaul slag treatment device provided in an embodiment of the present invention.

Fig. 2 is a front view of a vibration mechanism of a slag treatment device for overhauling an aluminum electrolytic cell provided in an embodiment of the utility model.

Fig. 3 is a side view of the turntable structure of a slag treatment device for overhauling an aluminum electrolytic cell provided in an embodiment of the utility model.

In the figure: 1-water pump, 2-connecting pipe, 3-hollow pipe, 31-upper end, 32-lower end, 4-motor, 5-water outlet pipe, 6-liquid outlet, 7-reaction tank, 8-water inlet pipe, 9-baffle plate, 10-first gear set, 11-branch pipe, 12-second gear set, 13-rotating rod, 14-limiting plate, 15-turntable, 16-rod, 17-limiting groove, 18 -limit block, 19-limit rod, 20-spring, 21-fixed plate, 22-protrusion, 23-limit frame.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

The specific implementation of the utility model is described in detail below in conjunction with specific embodiments.

In one embodiment, please refer to FIG. 1 , a device for processing slag from overhaul of an aluminum electrolytic cell, including a reaction tank 7 connected to a water inlet pipe 8 and a water outlet pipe 5 , and the inside of the reaction tank 7 is provided with a baffle A hollow tube 3 runs through the inside of the plate 9 and the baffle plate 9, and the ends of the hollow tube 3 are closed, wherein the upper end 31 of the hollow tube 3 runs through the reaction pool 7, and the top of the reaction pool 7 is provided with a water pump 1, and the water pump 1 is connected with a connecting pipe 2, The connecting pipe 2 runs through the top of the hollow pipe 3 and is connected to it in rotation. The hollow pipe 3 is connected with a rotating mechanism, which is used to drive the hollow pipe 3 to rotate. The side of the hollow pipe 3 is provided with several branch pipes 11, and one end of the branch pipe 11 is connected to the hollow pipe. The tubes 3 communicate with each other, and the other end is provided with a liquid outlet 6 .

In this embodiment, when the device is processing the overhaul slag of the aluminum electrolytic cell, the overhaul slag mixture first enters the inside of the reaction tank 7 through the water inlet pipe 8, and then starts the water pump 1. Under the action of the water pump 1, the flocculation agent passes through the The connecting pipe 2 enters the interior of the hollow pipe 3, and then discharges from the liquid outlet 6 at the end of the branch pipe 11, so that the flocculation agent can be mixed with the overhaul slag liquid from the middle of the overhaul slag liquid, and the number of branch pipes 11 can be multiple, effectively The contact area between the flocculation agent and the overhaul slag liquid is increased, thereby increasing the precipitation rate of fluoride by the flocculation agent. In addition, the device can also drive the hollow tube 3 to rotate through the rotating mechanism, and then drive the branch pipe 11 to rotate. The flocculation agent and the overhaul slag are mixed and stirred, that is, the device can also mix and stir the flocculation agent and the overhaul slag while the flocculation agent is discharged, effectively increasing the contact area between the flocculation agent and the overhaul slag, thereby further improving In order to prevent the overhaul slag liquid inside the reaction tank 7 from entering the inside of the branch pipe 11, a one-way valve can be set on the branch pipe 11.

In another embodiment, please refer to FIG. 1 , the rotating mechanism includes a motor 4 arranged on the top of the reaction tank 7 , and the motor 4 is connected with the hollow pipe 3 through a first gear set 10 .

In this embodiment, when it is necessary to precipitate the fluoride in the overhaul slag liquid, the motor 4 is started, and the motor 4 drives the hollow tube 3 to rotate through the first gear set 10, and then drives the branch pipe 11 to rotate, so that the flocculation agent and the overhaul The slag plays a stirring role, which improves the precipitation rate of the flocculation agent to the fluoride. The first gear set 10 can be two bevel gears meshing with each other, one of which is sleeved outside the hollow tube 3, and the other is set on the outside of the hollow tube 3. Motor 4 ends.

In another embodiment, please refer to FIG. 2 , the hollow tube 3 is divided into an upper end 31 and a lower end 32, the upper end 31 is inserted into the lower end 32 and is slidably connected with it, and the lower end 32 is connected with the branch pipe 11, wherein the lower end 32 is connected with Vibration mechanism, the vibration mechanism is used to drive the lower end 32 to vibrate up and down, wherein the upper end 31 inserted into the inner end of the lower end 32 is provided with a limit block 18, and the inner wall of the lower end 32 is provided with a limit groove 17, and the limit block 18 is located inside the limit groove 17 and swipe to connect with it.

In this embodiment, when it is necessary to precipitate the fluoride in the overhaul slag liquid, the vibration mechanism drives the fixed plate 21 to vibrate up and down, and the fixed plate 21 drives the lower end 32 to vibrate up and down through the bearing, and then drives the branch pipe 11 to move up and down, further The contact area between the flocculant liquid discharged from the branch pipe 11 and the overhaul slag liquid is increased, and the precipitation rate of the fluoride is further improved by the flocculant agent. While the lower end 32 moves up and down, the limit block 18 at the end of the upper end 31 can limit The position groove 17 slides inside, and the limit block 18 can drive the lower end 32 to rotate through the limit groove 17, which ensures that the branch pipe 11 can also move up and down while rotating.

In another embodiment, referring to Fig. 2 and Fig. 3, the vibration mechanism includes a fixed plate 21 arranged outside the lower end 32, the lower end 32 is rotatably connected with the fixed plate 21 through a bearing, wherein the fixed plate 21 is fixedly connected with a pole 16. The pole 16 runs through the baffle plate 9 and is slidably connected with it. The inside of the reaction tank 7 is provided with a limit plate 14. The inside of the limit plate 14 is penetrated with a rotating rod 13. One end of the rotating rod 13 passes through the second gear set 12 and the upper end 31 connected, the other end is provided with a turntable 15, and the surface of the turntable 15 is provided with an eccentrically arranged protrusion 22, and the protrusion 22 is externally slidably connected with a limit frame 23, and the limit frame 23 is fixedly connected with the pole 16.

In this embodiment, when the overhaul slag of the aluminum electrolytic cell is processed, the upper end 31 rotates while the second gear set 12 drives the rotating rod 13 to rotate, and the rotating rod 13 drives the protrusion 22 on the surface of the turntable 15 to perform a circular motion. Under the limit of the baffle plate 9, the protrusion 22 can drive the support rod 16 to move up and down through the limit frame 23 while moving in a circle, and then drive the fixed plate 21 to move up and down, and the rotation of the upper end 31 drives the lower end 32 to move up and down, saving energy , wherein the second gear set 12 can be two bevel gears meshing with each other, one of which is sleeved outside the upper end 31 and the other is fixed at the end of the rotating rod 13 .

In another embodiment, please refer to FIG. 2 , the inside of the fixed plate 21 runs through the limiting rod 19, and the limiting rod 19 is fixedly connected with the baffle plate 9, wherein a spring 20 is arranged on the outside of the limiting rod 19, and one end of the spring 20 is connected to the The baffle plate 9 is connected, and the other end is connected with the fixing plate 21 .

In this embodiment, the limiting rod 19 plays a limiting role on the fixing plate 21 , and the spring 20 plays a buffering role on the fixing plate 21 , thereby effectively improving the stability of the fixing plate 21 when it vibrates.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (5)

1. A slag treatment device for overhauling an aluminum electrolytic cell, comprising a reaction tank; it is characterized in that the reaction tank is connected with a water inlet pipe and an outlet pipe, the inside of the reaction tank is provided with a baffle plate, and a hollow pipe runs through the inside of the baffle plate, The end of the hollow tube is closed, and the upper end of the hollow tube runs through the reaction tank. A water pump is provided on the top of the reaction tank. The water pump is connected to a connecting pipe. The mechanism is used to drive the hollow tube to rotate. Several branch pipes are arranged on the side of the hollow pipe. One end of the branch pipe communicates with the hollow pipe, and the other end is provided with a liquid outlet. 2 . The device for processing slag from overhaul of an aluminum electrolytic cell according to claim 1 , wherein the rotating mechanism includes a motor arranged on the top of the reaction pool, and the motor is connected to the hollow pipe through a first gear set. 3 . 3. A device for processing slag from overhaul of an aluminum electrolytic cell according to claim 2, wherein the hollow tube is divided into an upper end and a lower end, the upper end is inserted into the lower end and is slidably connected to it, and the lower end is connected to a branch pipe, wherein The lower end is connected with a vibrating mechanism, and the vibrating mechanism is used to drive the lower end to vibrate up and down, wherein the upper end inserted into the lower end is provided with a limiting block, and the inner wall of the lower end is provided with a limiting groove, and the limiting block is located inside the limiting groove and is slidably connected with it. 4. A device for treating slag from overhaul of an aluminum electrolytic cell according to claim 3, wherein the vibration mechanism includes a fixed plate arranged outside the lower end, and the lower end is rotatably connected to the fixed plate through a bearing, wherein the fixed plate is fixedly connected There is a support rod, which runs through the baffle and is slidably connected with it. A limit plate is installed inside the reaction tank, and a rotating rod runs through the inside of the limit plate. One end of the rotating rod is connected to the upper end through the second gear set, and the other end is provided with a The turntable has an eccentrically arranged protrusion on the surface of the turntable, and the outside of the protrusion is slidably connected to a limit frame, and the limit frame is fixedly connected to the support rod. 5. A slag treatment device for overhauling an aluminum electrolytic cell according to claim 4, characterized in that, the inside of the fixing plate runs through a limit rod, and the limit rod is fixedly connected with the baffle plate, wherein a spring is arranged outside the limit rod , one end of the spring is connected with the baffle plate, and the other end is connected with the fixed plate.

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