Lightweight powder slurrying equipment

Abstract

The utility model relates to the technical field of aluminum slag treatment, in particular to equipment convenient for enhancing the slurrying performance of light aluminum ash powder, which comprises a feeding screw and a box body, and is characterized in that the feeding screw is connected with a flexible link and is connected into a feeding hole of the box body, a multi-stage atomizing and spraying structure is arranged in the box body, and the multi-stage atomizing and spraying structure is arranged in the box body. An atomization connector connected with the multi-stage atomization spraying structure is arranged on the outer surface of the box body, a slurrying water distribution connector is further connected to the upper portion of the box body, a baffle is arranged in the middle of the bottom of the box body, the waste gas spraying structure is connected to the upper portion of the box body, and a spray head connector is connected to the side edge of the waste gas spraying structure. According to the novel slurrying equipment, infiltration and slurrying of light aluminum ash powdery materials with different characteristics are completed in the slurrying equipment, and the equipment is closed, so that the powdery materials and water are mixed more sufficiently, meanwhile, a large amount of powdery materials are prevented from being dissipated, dust contained in waste gas is effectively eluted, harmful gas generated in the elution process can be effectively absorbed, and the environment-friendly effect is achieved. And harmful gas is prevented from being dissipated into the environment.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum slag treatment, in particular to light powder slurrying equipment. Background Art

[0002] Aluminum ash is waste slag generated in the production process of electrolytic aluminum, aluminum processing and recycled aluminum. According to statistics, about 30 to 50 kg of aluminum ash slag is generated for every ton of aluminum produced and cast. Its main components include metallic aluminum, aluminum oxide, aluminum nitride, aluminum carbide and a certain amount of salts such as sodium chloride, potassium chloride, fluoride and other small amounts of impurities such as iron, silicon, magnesium and titanium. The metallic aluminum content of secondary aluminum ash is lower than that of primary aluminum ash.

[0003] Aluminum nitride in aluminum ash reacts with water to produce ammonia, which pollutes the atmosphere. Fluoride and chloride salts dissolve in water and pollute natural water bodies and enter groundwater. Due to their obvious toxicity (I) and reactivity (R), direct discharge will cause irreversible pollution to the natural environment. The "National List of Hazardous Wastes" (2021 edition) includes aluminum ash, slag and dust produced by electrolytic aluminum in the list of hazardous wastes.

[0004] In the wet treatment process, the denitrification and desalination process can effectively remove impurities such as nitrides, soluble chlorides and soluble fluorine in the aluminum ash to obtain harmless high-aluminum materials.

[0005] In the process of realizing the utility model, the inventor found that the wet treatment technology has the following problems: 1. The existing aluminum ash batching tank cannot achieve effective infiltration, and some aluminum ash floats on the upper part of the batching tank; 2. The mixing between the aluminum ash material and the liquid phase cannot be fully mixed and evenly mixed, which affects the removal of harmful substances; 3. A large amount of dust is generated on the upper part of the batching tank, which affects the discharge of powder, and the gas contains a large amount of dust, which blocks the gas pipeline; 4. After the block material is generated, the liquid phase conveying equipment is blocked; 5. The batching tank produces scars, and the equipment cannot operate for a long time. Therefore, we propose a lightweight powder slurrying equipment. Utility Model Content

[0006] The utility model aims to provide a device for enhancing the slurrying performance of lightweight aluminum ash powder, so as to solve the problems of uneven mixing and equipment scarring in the existing aluminum ash wet treatment process mentioned in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a light powder slurrying equipment, including a feeding screw, the upper part of the feeding screw is connected to the upper part of the box as an aluminum ash material feeding port, the feeding port and the box are flexibly connected, a multi-stage atomizing spray structure is arranged on the upper part of the box, an atomizing interface that penetrates to the outside is connected to the atomizing spray joint, a slurrying water distribution interface is connected to the upper part of the box, an inspection and observation port is arranged on the upper part of the box, and an exhaust gas spray structure is connected to the other side of the upper part of the box, and the exhaust gas A nozzle interface is connected to the side of the spray structure, a discharge interface is arranged at the lower part of the box body, a baffle is arranged in the middle position of the box body, a spherical filter is arranged at the discharge interface of the box body, a horizontal double-axis propulsion rotating component is arranged in the box body, a blade is installed on the outer ring of the horizontal double-axis propulsion rotating component, an active seal and a driven seal are respectively arranged between the active end and the driven end of the rotating component and the box body, and the two ends of the rotating component are respectively connected to the active gear box and the driven gear box installed on the outside of the two sides of the box body, and the active gear box is driven by a driving motor.

[0008] Optionally, the feed screw is connected to the feed port via a flexible link, and the feed port is in the form of a small upper portion and a large lower portion.

[0009] The adoption of the above technical solution is conducive to the powdery materials entering the box.

[0010] Optionally, the lower part of the box body is a double semicircle, and the side walls and bottom of the box body form a minimum gap with the blades, and the blades are staggered.

[0011] Optionally, the multi-stage atomizing spray structure on the upper part of the box body adopts multiple atomizing nozzles, and multiple groups are provided, and each group has a segmented spraying mode.

[0012] Optionally, the box body is provided with horizontal dual-axis propulsion flapping blades, and two parallel rotating parts are provided, and the blades are connected to the rotating parts by bolts.

[0013] Optionally, a spherical filter is provided in front of the discharge interface at the lower part of the box body. The spherical filter is hemispherical and is fixed to the box body by welding.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. The technical solution of this application adopts horizontal slurrying equipment for the first time to treat light aluminum ash. Light aluminum ash powder materials with different characteristics are transported to the slurrying equipment and moved forward by propulsion-type double-axis stirring blades. During the movement, multi-stage spray atomization is adopted to prevent dust from floating. Then, the light materials on the liquid surface are forced to be immersed in the water phase through beating by the blades, so that different types of powder materials can be slurried more effectively.

[0016] 2. In the technical solution of the present application, the infiltration and slurrying of lightweight aluminum ash powder materials with different characteristics are completed inside the slurrying equipment. The equipment is closed, so that the mixing between the powder material and water is more complete, while also avoiding the large-scale dissipation of the powder material. The dust contained in the exhaust gas can be effectively washed away and the harmful gases generated during the washing process can be effectively absorbed, avoiding the dissipation of harmful gases into the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of the lightweight powder slurrying equipment of the utility model;

[0019] Figure 2 This is a schematic diagram of the stirring top view structure of the lightweight powder slurrying equipment of the utility model;

[0020] Figure 3 It is a side structural schematic diagram of the lightweight powder slurrying equipment of the utility model.

[0021] In the figure: 1. Feed screw; 2. Flexible connection; 3. Feed port; 4. Maintenance observation port; 5. Multi-stage atomization spray structure; 6. Atomization interface; 8. Slurry water distribution interface; 9. Exhaust gas spray structure; 10. Nozzle interface; 11. Cover plate; 12. Box body; 13. Drive motor; 14. Active end gear box; 15. Active seal; 16. Rotating part; 17. Blade; 18. Baffle; 19. Spherical filter; 20. Discharge interface; 21. Driven seal; 22. Driven end gear box. DETAILED DESCRIPTION

[0022] See also Figure 1-3 The utility model provides a technical solution: a lightweight powder slurrying equipment, including a feeding screw, which is connected with a flexible link and connected to the feeding port of a box body, a powder material inlet, a spray liquid enters the box body and enters the liquid to the multi-stage atomizing spray structure for atomization through an atomizing interface, and the slurrying water distribution interface is the main liquid inlet, a baffle is arranged in the middle position of the bottom of the box body, the gas generated by the slurry is sprayed and absorbed by the exhaust gas spray structure, and the spray liquid enters from the side nozzle interface, a cover plate is arranged on the top of the box body, and an inspection and observation port is arranged on the upper part of the cover plate, a double-axis flapping and propulsion-type rotating component is arranged in the box body, and blades are installed on the outer ring of the double-axis flapping rotating component, an active seal and an active end gear box are arranged at the connection between the box body and the active end of the rotating component, the blade driving form is driven by a driving motor, and a driven seal and a driven end gear box are arranged at the connection between the box body and the passive end of the rotating component, a spherical filter is fixed in the discharge interface arranged at the lower part of the driven end of the box body, and the slurried material enters the discharge interface through the spherical filter net for discharge.

[0023] In this embodiment, Figure 1 The feed screw of the aluminum ash material is flexibly connected to the feed port of the box. The feed port is small at the top and large at the bottom, which is conducive to powder discharge. The feed port is located at the driving end and the cover plate is located at the center line position, which is conducive to slurry transportation and slurrying and avoids material accumulation inside the slurry.

[0024] In this embodiment, Figure 3 The lower part of the box is a double semicircle, and the side walls and bottom of the box form a minimum gap with the blades. The blades are staggered, and the ends of the blades overlap during operation to increase the pulping intensity and avoid dead corners.

[0025] In this embodiment, Figure 1 The multi-stage atomizing spray structure on the upper part of the box adopts atomizing nozzles and is set in multiple groups. Each group adopts a segmented spraying method to form a multi-section full-area coverage. The material is crossed with the spray from the feed inlet to the discharge interface, which is beneficial for powder infiltration. The cover plate is provided with side-by-side branch pipes, and the atomizing spray water is connected by the atomizing interface. Multiple groups of spray heads are arranged on each branch pipe, which are threadedly connected, which is convenient for maintenance and replacement.

[0026] In this embodiment, Figure 2 , Figure 3 The box body is equipped with horizontal double-axis propulsion and beating blades, and two rotating parts are set. The blades are connected to the rotating parts by bolts. The blades adopt multi-stage propulsion type, and the propulsion direction is radial. The blade running tracks on the two rotating parts are staggered and overlapped. Each pulp blade is equipped with a beating blade, and the movement direction forms a radial direction with the material flow direction, and the operation process forms a strong mixing and beating and cleaning function.

[0027] In this embodiment, Figure 1 A spherical filter is provided in front of the discharge interface at the lower part of the box. The spherical filter is hemispherical and fixed to the box by welding. The spherical filter is provided with circular holes to make it difficult for solid particles to adhere to the spherical filter. The intercepted particles are broken up by the blades again, and the uniform slurry passing through the spherical filter is discharged from the discharge interface.

[0028] In this embodiment, Figure 1 The dusty waste gas generated inside the slurry is connected to the waste gas spray structure. During the waste gas spraying, the dust-containing gas flows from bottom to top, and the spray liquid is connected through the nozzle interface. Multi-stage spray elution is adopted, and the liquid flows from top to bottom and is fully mixed with the dust-containing gas. The elution liquid then returns to the slurry.

[0029] When in use, first start the drive motor, drive the blades to run through the active end gear box, then connect to the multi-stage atomization spray structure, use the exhaust gas spray structure, start the spray water, start the feed screw, feed into the feed port, and the material after complete slurrying is discharged through the discharge interface. The equipment runs continuously, and the material undergoes atomization infiltration, forced beating and stirring, water replenishment slurrying, and waste spraying. A baffle is set in the middle of the box, so that the material slurrying process consists of two stages: infiltration slurrying and homogenization, so that the material mixing is more thorough.

Claims

1. A light powder slurrying device, comprising a feeding screw and a box, characterized in that: The feeding spiral is connected with the flexible link and connected to the feeding port of the box body. A multi-stage atomizing spray structure is installed inside the box body. An atomizing interface connected to the multi-stage atomizing spray structure is arranged on the outer surface of the box body. A slurrying water distribution interface is also connected to the top of the box body. A baffle is arranged in the middle position of the bottom of the box body. An exhaust gas spray structure is connected and installed on the top of the box body. A nozzle interface is connected to the side of the exhaust gas spray structure. A cover plate is arranged on the top of the box body. A maintenance observation port is arranged on the upper part of the cover plate. A double-axis flapping rotating component is arranged in the box body. Blades are arranged on the outer ring of the rotating component. An active seal and an active end gear box are arranged at the connection between the box body and the active end of the stirring. The active end gear box is driven by a driving motor. A driven seal and a driven end gear box are arranged at the connection between the box body and the passive end of the stirring. A spherical filter is arranged at the discharge interface at the lower part of the driven end of the box body.

2. A light powder slurrying device according to claim 1, characterized in that: The feed screw is connected to the feed port via a flexible link, and the feed port is in the form of being small at the top and large at the bottom.

3. The light powder slurrying equipment according to claim 1, characterized in that: The lower part of the box body is double semicircular, and the side wall and the bottom of the box body form a minimum gap with the blades, and the blades are staggered.

4. The light powder slurrying equipment according to claim 1, characterized in that: The multi-stage atomizing spray structure on the upper part of the box body adopts a plurality of atomizing nozzles, and is provided with a plurality of groups, each group having a segmented spraying mode.

5. The light powder slurrying equipment according to claim 1, characterized in that: The box body is provided with horizontal double-axis propulsion flapping blades and two parallel rotating parts, and the blades are connected with the rotating parts through bolts.

6. The light powder slurrying equipment according to claim 1, characterized in that: A spherical filter screen is arranged in front of the material discharging interface at the lower part of the box body. The spherical filter screen is hemispherical and is fixed to the box body by welding.

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