Harmless detoxification section structure for aluminum ash

Abstract

The utility model relates to the technical field of aluminum ash harmless treatment, in particular to an aluminum ash harmless detoxification section structure which comprises a settling tank. The aluminum ash harmless detoxification section structure comprises a settling tank, a mixing cylinder is arranged at the right end of the upper surface of the settling tank, a liquid material filling pipe, an exhaust pipe, a stirring motor and a solid material feeding pipe are installed on the upper surface of the mixing cylinder, an output shaft of the stirring motor is connected with a stirring rod, stirring blades are installed on the stirring rod, and the stirring rod is arranged in the center of the interior of the mixing cylinder. The situation that ammonia gas overflows in the harmless detoxification process of the aluminum ash, and consequently the physical and psychological health of operators is endangered can be effectively avoided, and meanwhile precipitation of aluminum salt and harmless detoxification of the aluminum ash are carried out separately and synchronously; the mixing barrel is used for mixing aluminum ash and detoxification water, the liquid material filling pipe is used for filling liquid materials into the mixing barrel, the exhaust pipe is used for collecting ammonia gas generated in the aluminum nitride hydrolysis process, and the stirring motor drives the stirring rod to stir the materials, so that powder can be fully dissolved in the detoxification water.

Description

Technical Field

[0001] The present application relates to the technical field of harmless treatment of aluminum ash, and specifically to a structure of a harmless detoxification section for aluminum ash. Background Art

[0002] Aluminum ash mainly comes from recycled aluminum. Secondary aluminum ash contains about 60% aluminum oxide, as well as some fluoride salts, chlorides, heavy metal oxides, etc. Since aluminum ash contains toxic and harmful substances such as aluminum nitride, fluorides, chlorides, and soluble salts, it is listed as hazardous waste and needs to be treated harmlessly through dry or wet processes.

[0003] In the wet detoxification process of aluminum ash, aluminum nitride will undergo a hydrolysis reaction with water to generate ammonia and aluminum hydroxide. If the generated ammonia diffuses into the air, it will seriously affect the physical and mental health of operating workers. When the existing technology of the harmless detoxification section of aluminum ash is working, there will be a lot of ammonia overflowing. At this time, the production workshop needs to have good ventilation effect, and the precipitation of aluminum salt after the harmless detoxification of aluminum ash also takes place in the detoxification tank, resulting in a low treatment efficiency of aluminum ash. Utility Model Content

[0004] The present application provides a structure of a harmless detoxification section for aluminum ash, which can effectively avoid the overflow of ammonia during the harmless detoxification process of aluminum ash, thus harming the physical and mental health of operating workers. At the same time, by separating and synchronously carrying out the precipitation of aluminum salt from the harmless detoxification of aluminum ash, the treatment efficiency of aluminum ash can be effectively improved, effectively solving the problems in the background art.

[0005] To achieve the above object, the present application provides the following technical solution: A structure of a harmless detoxification section for aluminum ash, including a sedimentation tank; a mixing cylinder is provided at the right end of the upper surface of the sedimentation tank. A liquid material filling pipe, an exhaust pipe, a stirring motor and a solid material feeding pipe are installed on the upper surface of the mixing cylinder. The output shaft of the stirring motor is connected to a stirring rod, and stirring blades are installed on the stirring rod. The stirring rod is arranged in the center of the interior of the mixing cylinder.

[0006] A powder feeding mechanism is connected to the solid material feeding pipe. The discharge port of the mixing cylinder communicates with the sedimentation tank through a discharge pipe, and an electric control ball valve I is installed on the discharge pipe.

[0007] A fishing window is provided at the left end of the upper surface of the sedimentation tank, and the fishing window is covered with a cover plate. A conical discharge hopper is provided at the left end of the lower surface of the sedimentation tank, and an electric control ball valve II is installed on the conical discharge hopper. A plate-shaped filter screen that can slide left and right is provided inside the sedimentation tank, and a conical filter screen is placed on the inner side wall of the conical discharge hopper.

[0008] Specifically, the interior of the sedimentation tank is a strip-shaped groove.

[0009] Specifically, a shut-off valve is installed on the liquid material filling pipe, and the exhaust pipe is connected to an external ammonia collection device through a pipeline.

[0010] Specifically, the powder feeding mechanism includes a screw conveyor and a raw material tank. The feeding port of the screw conveyor is connected to the discharging port of the raw material tank, and the discharging port of the screw conveyor is connected to the solid material feeding pipe.

[0011] Specifically, a slide gate valve is installed on the solid material feeding pipe. The slide gate valve includes an electric telescopic rod installed on the mixing cylinder. The telescopic end of the electric telescopic rod is connected to a slide plate, and the slide plate is slidably connected to the solid material feeding pipe.

[0012] Specifically, slide rails are provided on both the front and rear sides of the settling tank. Sliders are slidably connected to the slide rails. An electric control telescopic rod is installed on the upper surface of the slider, and the telescopic end of the electric control telescopic rod is connected to a cover plate through a pressing plate.

[0013] Specifically, a lifting handle is provided at the upper end of the outer side of the conical filter screen.

[0014] Specifically, two parallel pull rods are slidably connected to the left end face of the settling tank. The left ends of the two pull rods are connected together by a U-shaped rod, and the right end face of the pull rod is connected to the outer frame of the plate-shaped filter screen.

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

[0016] 1. The structure of the aluminum ash harmless detoxification section can effectively prevent ammonia gas from overflowing during the harmless detoxification process of aluminum ash, thus protecting the physical and mental health of operating workers. At the same time, the precipitation of aluminum salts and the harmless detoxification of aluminum ash are carried out separately and synchronously.

[0017] 2. The mixing cylinder is used for mixing aluminum ash and detoxifying water. The liquid material filling pipe is used for filling liquid materials into the mixing cylinder. The exhaust pipe is used for collecting ammonia gas generated during the hydrolysis of aluminum nitride. The stirring motor drives the stirring rod to stir the materials, so that the powder can be fully dissolved in the detoxifying water. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present application;

[0019] Figure 2 is a front sectional view of the present application;

[0020] Figure 3 is a schematic structural diagram of the slide gate valve.

[0021] In the figure: 1 pull rod, 2 pressure plate, 3 cover plate, 4 sedimentation tank, 5 mixing cylinder, 6 liquid material filling pipe, 7 exhaust pipe, 8 stirring motor, 9 screw conveyor, 10 raw material box, 11 slide rail, 12 electric control telescopic rod, 13 slider, 14 circular positioning plate, 15 stud with head, 16 conical filter screen, 17 salvage window, 18 electric control ball valve I, 19 stirring rod, 20 solid material feeding pipe, 21 plug valve, 211 electric telescopic rod, 212 plug board, 22 discharge pipe, 23 plate-shaped filter screen, 24 electric control ball valve II, 25 conical feeding hopper. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0023] In the description of the present application, if it involves orientation description, such as "upper", "lower", "front", "rear", "left", "right", etc., the orientation or positional relationship indicated is based on the Figure 2 orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. When a certain feature is described as "set", "fixed", "connected" to another feature, it can be directly set, fixed, connected to another feature, or indirectly set, fixed, connected to another feature.

[0024] Please refer to Figures 1-3 , the present application provides the following technical solutions: A harmless detoxification section structure for aluminum ash includes a sedimentation tank 4; a mixing cylinder 5 is provided at the right end of the upper surface of the sedimentation tank 4. A liquid material filling pipe 6, an exhaust pipe 7, a stirring motor 8 and a solid material feeding pipe 20 are installed on the upper surface of the mixing cylinder 5. The output shaft of the stirring motor 8 is connected to a stirring rod 19. Stirring blades are installed on the stirring rod 19. The stirring rod 19 is arranged in the center of the interior of the mixing cylinder 5.

[0025] Specifically, the mixing cylinder 5 is used for mixing aluminum ash and detoxifying water. The liquid material filling pipe 6 is used for filling liquid material into the mixing cylinder 5. The exhaust pipe 7 is used for collecting ammonia gas generated during the hydrolysis of aluminum nitride. The stirring motor 8 drives the stirring rod to stir the materials, so that the powder can be fully dissolved in the detoxifying water.

[0026] A powder feeding mechanism is connected to the solid material feeding pipe 20. The discharge port of the mixing cylinder 5 communicates with the sedimentation tank 4 through a discharge pipe 22. An electric control ball valve I 18 is installed on the discharge pipe 22.

[0027] Specifically, the powder can be quantitatively filled through the solid material feed pipe 20.

[0028] A salvage window 17 is provided at the left end of the upper surface of the sedimentation tank 4, and a cover plate 3 is covered on the salvage window 17. A conical discharge hopper 25 is provided at the left end of the lower surface of the sedimentation tank 4, and an electric control ball valve II 24 is installed on the conical discharge hopper 25. A plate-shaped filter screen 23 that can slide left and right is provided inside the sedimentation tank 4, and a conical filter screen 16 is placed on the inner side wall of the conical discharge hopper 25.

[0029] Specifically, the aluminum salt in the conical filter screen 16 can be quickly taken out through the salvage window 17.

[0030] Furthermore, the inside of the sedimentation tank 4 is a strip-shaped groove.

[0031] Specifically, the setting of the strip-shaped groove facilitates the scraping of the materials inside the sedimentation tank 4.

[0032] Furthermore, a shut-off valve is installed on the liquid material filling pipe 6, and the exhaust pipe 7 is connected to an external ammonia gas collection device through a pipeline.

[0033] Specifically, the exhaust pipe 7 is used for the collection of ammonia gas, and the ammonia gas collection device mainly includes a spray ammonia removal device.

[0034] Furthermore, the powder feeding mechanism includes a screw conveyor 9 and a raw material box 10. The feeding port of the screw conveyor 9 is connected to the discharging port of the raw material box 10, and the discharging port of the screw conveyor 9 is connected to the solid material feed pipe 20.

[0035] Specifically, the screw conveyor 9 is used to transport the powder in the raw material box 10 into the inside of the mixing cylinder 5.

[0036] Furthermore, a plug valve 21 is installed on the solid material feed pipe 20. The plug valve 21 includes an electric telescopic rod 211 installed on the mixing cylinder 5. The telescopic end of the electric telescopic rod 211 is connected to a plug plate 212, and the plug plate 212 is slidably connected to the solid material feed pipe 20.

[0037] Specifically, the movement of the plug plate 212 driven by the electric telescopic rod 211 can control the opening and closing of the solid material feed pipe 20. The plug plate 212 is slidably connected to a strip-shaped through groove on the solid material feed pipe 20, and the contact part between the plug plate 212 and the strip-shaped through groove is sealed by a sealing rubber strip.

[0038] Furthermore, slide rails 11 are provided on both the front and rear sides of the sedimentation tank 4. Sliders 13 are slidably connected to the slide rails 11. An electric control telescopic rod 12 is installed on the upper surface of the slider 13, and the telescopic end of the electric control telescopic rod 12 is connected to the cover plate 3 through a pressing plate 2.

[0039] Specifically, when opening the cover plate 3, first, the electric control telescopic rod 12 extends to open the cover plate 3, and then the electric control telescopic rod 12 is pushed along the slide rail 11 to move the cover plate 3 away.

[0040] Furthermore, a lifting handle is provided at the upper end of the outer side of the conical filter screen 16.

[0041] Specifically, the setting of the lifting handle facilitates the lifting of the conical filter screen 16.

[0042] Even further, two parallel pull rods 1 are slidably connected to the left end face of the settling tank 4. The left ends of the two pull rods 1 are connected together by a U-shaped rod, and the right end face of the pull rod 1 is connected to the outer frame of the plate-shaped filter screen 23.

[0043] Specifically, by pulling the pull rod 1, the plate-shaped filter screen 23 can be driven to move in the settling tank 4, so as to push the precipitated salt in the settling tank 4 into the conical filter screen 16.

[0044] More specifically, a circular positioning plate 14 is installed at the end of the pull rod 1, and the circular positioning plate 14 is fixed to the outer side wall of the settling tank 4 by a stud 15 with a head.

[0045] During use: The aluminum ash powder is filled into the raw material tank 10, the cover plate on the raw material tank 10 is closed, and then the powder in the raw material tank 10 is quantitatively pumped into the mixing cylinder 5 by the screw conveyor 9. After the powder filling is completed, the plug valve 21 is closed, and then distilled water is filled into the raw material tank 10 through the liquid material filling pipe 6. The ammonia gas is generated when the distilled water contacts the aluminum nitride in the aluminum ash powder. Synchronously, the stirring motor 8 drives the stirring paddle to stir the mixture, so that the solid and liquid are fully contacted. The ammonia gas generated during the reaction enters the ammonia gas collection device through the exhaust pipe 7.

[0046] After the ammonia gas is discharged, an acidic solution is filled into the raw material tank 10 through the liquid material filling pipe 6 to make the mixed solution generate aluminum salts. Finally, an alkaline solution is filled to neutralize the mixed solution. During the acid-base neutralization process, the ammonia gas dissolved in water is further precipitated. During the neutralization and aluminum salt generation processes, the stirring motor 8 continuously stirs the mixed solution.

[0047] When the aluminum salt precipitates, by opening the electric control ball valve 18, the mixed solution enters the settling tank 4 through the discharge pipe 22. The aluminum salt in the mixed solution is precipitated in the settling tank 4. After the precipitation is completed, the electric control ball valve 24 is opened to discharge the liquid in the settling tank 4. After the liquid discharge is completed, by pulling the pull rod 1, the plate-shaped filter screen 23 is pulled to move in the settling tank 4, so as to push the precipitated salt in the settling tank 4 into the conical filter screen 16. The precipitated aluminum salt can be collected through the fishing window 17.

[0048] It should be noted that the input ends of the stirring motor 8, the screw conveyor 9, the electric control telescopic rod 12, the first electric control ball valve 18, the electric telescopic rod 211, and the second electric control ball valve 24 are all electrically connected to the output end of the external power supply through an external control switch.

[0049] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A structure for the harmless detoxification section of aluminum ash, characterized in that: It includes a settling tank (4); at the right end of the upper surface of the settling tank (4), there is a mixing cylinder (5). On the upper surface of the mixing cylinder (5), a liquid material filling pipe (6), an exhaust pipe (7), a stirring motor (8), and a solid material feeding pipe (20) are installed. The output shaft of the stirring motor (8) is connected to a stirring rod (19). Stirring blades are installed on the stirring rod (19), and the stirring rod (19) is arranged at the center inside the mixing cylinder (5). A powder feeding mechanism is connected to the solid material feeding pipe (20). The discharge port of the mixing cylinder (5) communicates with the settling tank (4) through a discharge pipe (22), and an electric control ball valve one (18) is installed on the discharge pipe (22). At the left end of the upper surface of the settling tank (4), there is a fishing window (17), and a cover plate (3) covers the fishing window (17). At the left end of the lower surface of the settling tank (4), there is a conical discharging hopper (25), and an electric control ball valve two (24) is installed on the conical discharging hopper (25). Inside the settling tank (4), there is a plate-shaped filter screen (23) that can slide left and right, and a conical filter screen (16) is placed on the inner side wall of the conical discharging hopper (25).

2. The structure of the harmless detoxification section of aluminum ash according to claim 1, characterized in that: The inside of the settling tank (4) is a strip-shaped groove.

3. The structure of the harmless detoxification section of aluminum ash according to claim 1 is characterized in that: A shut-off valve is installed on the liquid material filling pipe (6), and the exhaust pipe (7) is connected to an external ammonia gas collection device through a pipeline.

4. The structure of the harmless detoxification section of aluminum ash according to claim 1, characterized in that: The powder feeding mechanism includes a screw conveyor (9) and a raw material tank (10). The feed inlet of the screw conveyor (9) is connected to the discharge outlet of the raw material tank (10), and the discharge outlet of the screw conveyor (9) is connected to the solid material feeding pipe (20).

5. The structure of the harmless detoxification section of aluminum ash according to claim 4, characterized in that: An insertion plate valve (21) is installed on the solid material feeding pipe (20). The insertion plate valve (21) includes an electric telescopic rod (211) installed on the mixing cylinder (5). The telescopic end of the electric telescopic rod (211) is connected to an insertion plate (212), and the insertion plate (212) is slidably connected to the solid material feeding pipe (20).

6. The structure of the harmless detoxification section of aluminum ash according to claim 1 is characterized in that: Sliding rails (11) are provided on both the front and rear sides of the settling tank (4). Sliders (13) are slidably connected to the sliding rails (11). An electric control telescopic rod (12) is installed on the upper surface of the slider (13), and the telescopic end of the electric control telescopic rod (12) is connected to the cover plate (3) through a pressing plate (2).

7. The structure of a harmless detoxification section for aluminum ash according to claim 1, characterized in that: A lifting handle is provided at the upper end of the outer side surface of the conical filter screen (16).

8. The structure of the harmless detoxification section of aluminum ash according to claim 1, characterized in that: Two parallel pull rods (1) are slidably connected to the left end face of the settling tank (4). The left ends of the two pull rods (1) are connected together through a U-shaped rod, and the right end face of the pull rod (1) is connected to the outer frame of the plate-shaped filter screen (23).

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