A stirring device for a fly ash water washing stirring tank

Abstract

The utility model relates to the field of fly ash stirring, concretely relates to a stirring device of fly ash washing stirring tank, include: work table, the top of work table is movably provided with movable car, the top of movable car bears and stirs the jar, work table top one side is fixedly provided with transmission mechanism, work table side portion is fixedly connected with the connecting box, the connecting box bottom rotatably connects with stirring mechanism, transmission mechanism with stirring mechanism drive connection, when driving stirring mechanism operation through transmission mechanism, transmission frame drives each first rotation axis and second rotation axis per revolution, simultaneously, multiple transmission gears drive multiple driven gears rotate, make first rotation axis drive stirring frame, crushing blade and support frame rotate. The cross bar on the stirring frame can increase the contact area with the fly ash, accelerate the separation of the fly ash, improve the dissolution efficiency of the chloride ion.

Description

Technical Field

[0001] This utility model belongs to the field of fly ash mixing, specifically relating to a mixing device for a fly ash water washing mixing tank. Background Technology

[0002] In the waste incineration process, fly ash, as a byproduct, contains a large amount of harmful substances such as chlorides. Direct discharge would cause serious environmental pollution. Therefore, fly ash washing is a key treatment step, aiming to fully dissolve the soluble chlorides in the fly ash using as little water as possible, while ensuring that the chloride content of the washed sludge meets the standards. A three- or four-stage countercurrent washing process is usually adopted, making the washing tank a frequently used piece of equipment in the washing process.

[0003] However, some devices use a motor to drive a stirring rod to rotate in one direction within the tank, thereby stirring the fly ash solution and promoting the dissolution of chloride ions in the fly ash into the water. However, this method has several drawbacks: firstly, the single stirring direction causes a large amount of fly ash to adhere to the inner wall of the mixing vessel, significantly affecting the dissolution efficiency of chloride ions within the fly ash; secondly, traditional paddle-type stirring surfaces are ineffective at stirring the high-viscosity slurry formed after the fly ash dissolves in the washing water, making it difficult to mix the slurry evenly and easily causing it to settle at the bottom, resulting in insufficient washing. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of traditional devices in the prior art, such as fly ash adhering to the inner wall due to a single stirring direction, which reduces the chloride ion leaching efficiency, and difficulty in effectively stirring high-viscosity slurry, resulting in sedimentation and insufficient water washing. This invention aims to realize a stirring device for fly ash water washing stirring tank.

[0005] To achieve the above-mentioned objectives, the technical solution of this utility model is: a stirring device for a fly ash washing mixing tank, comprising: a workbench, a movable trolley movably mounted on the top of the workbench, and a mixing tank supported on the top of the movable trolley;

[0006] A transmission mechanism is fixedly installed on one side of the top of the workbench, and a connecting box is fixedly connected to the side of the workbench. A stirring mechanism is rotatably connected to the bottom of the connecting box, and the transmission mechanism is drivingly connected to the stirring mechanism.

[0007] In the agitation device of the fly ash washing mixing tank mentioned above, a hydraulic lifting cylinder is fixed at the bottom of the workbench;

[0008] The output end of the hydraulic lifting cylinder is fixed with a cross push column;

[0009] The cross-shaped push column is located below the stirring mechanism.

[0010] In the agitation device of the fly ash washing mixing tank described above, the transmission mechanism includes:

[0011] The first drive motor and the second drive motor are respectively fixed to one side of the top of the worktable;

[0012] The first driven wheel is rotatably connected inside the connecting box;

[0013] Second driven wheel;

[0014] A connecting shaft passes through the second driven wheel, and several transmission gears are fixed from top to bottom on the bottom of the outer surface of the connecting shaft.

[0015] In the stirring device of the fly ash washing mixing tank mentioned above, a first transmission wheel is fixed to the output end of the first drive motor, and a second transmission wheel is fixed to the output end of the second drive motor.

[0016] The first drive wheel and the first driven wheel are connected by a belt drive, and the second drive wheel and the second driven wheel are connected by a belt drive.

[0017] In the stirring device of the fly ash washing mixing tank mentioned above, a transmission frame is fixed to the inner wall of the second driven wheel;

[0018] The transmission frame is rotatably connected inside the connecting box.

[0019] In the agitation device of the fly ash washing mixing tank described above, the agitation mechanism includes:

[0020] Three first rotating shafts are rotatably connected to the bottom of the transmission frame, and the top of each first rotating shaft extends to the inside of the transmission frame;

[0021] A driven gear is fixedly fitted onto the outer surface of the top of the first rotating shaft, and the driven gear meshes with the transmission gear.

[0022] The second rotating shaft is fixed to one side of the bottom of the transmission frame;

[0023] The scraper is fixed to the side wall of the second rotating shaft.

[0024] In the above-mentioned mixing device for the fly ash washing mixing tank, the mixing mechanism further includes a mixing frame, the inner wall of which is uniformly fixed with several crossbars, and the top of the mixing frame is fixed to the bottom of one of the first rotating shafts.

[0025] A support frame, wherein a triangular plate is fixed to the side wall of the support frame, and the top of the support frame is fixed to the bottom of another first rotating shaft;

[0026] The crushing blades are fitted and fixed to the outer surface of the first rotating shaft.

[0027] Compared with the prior art, the stirring device of the fly ash washing mixing tank of this utility model has at least the following characteristics:

[0028] Beneficial effects:

[0029] 1. The stirring device of the fly ash washing mixing tank of this utility model, when driven by the transmission mechanism, drives the stirring mechanism to rotate. The transmission frame drives each first and second rotating shaft to rotate, and at the same time, multiple transmission gears drive multiple driven gears to rotate, so that the first rotating shaft drives the stirring frame, crushing blades and support frame to rotate. The crossbar on the stirring frame can increase the contact area with fly ash, accelerate the separation of fly ash, and improve the dissolution efficiency of chloride ions; the triangular plate on the support frame impacts the fly ash during rotation, promotes the dispersion of fly ash, and further improves the washing effect; the crushing blades can crush large particles in fly ash, so that fly ash and water are more fully mixed, ensuring thorough washing and avoiding sludge settling at the bottom.

[0030] 2. The scraper on the second rotating shaft can scrape off the material accumulated on the inner wall of the mixing tank as the stirring mechanism operates, reducing fly ash adhesion to the inner wall of the mixing tank and reducing the problem of chloride ion dissolution efficiency being affected by material accumulation. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the first overall structure of this utility model;

[0032] Figure 2 This is a schematic diagram of the second overall structure of this utility model;

[0033] Figure 3 This is a side view of the hydraulic lifting cylinder of this utility model;

[0034] Figure 4 This is a front view schematic diagram of the transmission mechanism of this utility model;

[0035] Figure 5 This is a front view schematic diagram of the stirring mechanism of this utility model.

[0036] In the diagram: 1. Workbench; 2. Track;

[0037] 3. Hydraulic lifting cylinder; 301. Cross push column; 4. Mobile trolley; 5. Mixing tank;

[0038] 6. Transmission mechanism; 601. First drive motor; 602. Second drive motor; 603. First driven gear; 604. Second driven gear; 605. Transmission gear; 606. Driven gear;

[0039] 7. Connecting box;

[0040] 8. Stirring mechanism; 801. Stirring frame; 802. Crossbar; 803. Crushing blades; 804. First rotating shaft; 805. Scraper; 806. Second rotating shaft; 807. Support frame; 808. Triangular plate;

[0041] 9. Transmission frame. Detailed Implementation

[0042] The stirring device of the fly ash washing mixing tank of this utility model will be described in more detail below with reference to the accompanying drawings and specific embodiments.

[0043] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] This embodiment discloses a stirring device for a fly ash washing mixing tank. Traditional devices, due to their single stirring direction, cause fly ash to adhere to the inner wall, reducing chloride ion leaching efficiency, and are difficult to effectively stir high-viscosity slurry, resulting in sedimentation and insufficient washing. Referring to... Figures 1-5 It mainly includes: a workbench 1, a movable trolley 4 on the top of the workbench 1, and a mixing tank 5 on the top of the movable trolley 4; a transmission mechanism 6 is fixedly installed on one side of the top of the workbench 1, a connecting box 7 is fixedly connected to the side of the workbench 1, and a mixing mechanism 8 is rotatably connected to the bottom of the connecting box 7. The transmission mechanism 6 and the mixing mechanism 8 are connected in a transmission connection.

[0045] A hydraulic lifting cylinder 3 is fixed at the bottom of the workbench 1, and a cross push column 301 is fixed at the output end of the hydraulic lifting cylinder 3. The cross push column 301 is located below the stirring mechanism 8.

[0046] The mobile vehicle 4 achieves horizontal displacement of the mixing tank 5 between the loading / unloading station and the mixing station by sliding contact with the guide rail via roller assemblies embedded at its bottom. The transmission mechanism 6 adopts a dual-motor coordinated drive architecture.

[0047] The hydraulic lifting cylinder 3 is vertically mounted on the frame at the bottom of the workbench 1. The cross-shaped push column 301, which is fixed to the end of its piston rod, adopts a four-way symmetrical wedge structure. When the hydraulic system drives the piston rod to extend, the four wedge-shaped surfaces of the cross-shaped push column 301 form surface contact with the positioning grooves provided at the bottom of the mixing tank 5. The mechanical limit ensures that the mixing tank 5 remains horizontal during the lifting process. This lifting mechanism and the mixing mechanism 8 form a vertical motion coupling. When the mixing tank 5 is lifted to the preset height, the rotation axis of the mixing mechanism 8 automatically aligns with the center line of the tank, ensuring that the mixing components can be immersed in the fly ash slurry at the optimal working depth.

[0048] Reference Figure 1 and Figure 4 The transmission mechanism 6 includes: a first drive motor 601 and a second drive motor 602, respectively fixed to one side of the top of the workbench 1, a first driven wheel 603 rotatably connected inside the connecting box 7, a second driven wheel 604, and a connecting shaft passing through the second driven wheel 604. Several transmission gears 605 are fixed from top to bottom on the bottom of the outer surface of the connecting shaft. The output end of the first drive motor 601 is fixed to a first transmission wheel, and the output end of the second drive motor 602 is fixed to a second transmission wheel. The first transmission wheel and the first driven wheel 603 are connected by a belt drive, and the second transmission wheel and the second driven wheel 604 are connected by a belt drive. A transmission frame 9 is fixed to the inner wall of the second driven wheel 604, and the transmission frame 9 is rotatably connected inside the connecting box 7.

[0049] The first drive motor 601 and the second drive motor 602 are symmetrically mounted on the top of the workbench 1. Their output shafts are connected to the first and second drive wheels respectively via expansion sleeves. The first drive wheel transmits power to the first driven wheel 603 via a belt, forming the main drive link; the second drive wheel drives the second driven wheel 604 via a synchronous toothed belt, constructing an auxiliary power transmission channel. The connecting shaft adopts a hollow stepped shaft structure design. Its upper end is circumferentially fixed to the first driven wheel 603 via a spline connection, and its lower end passes through the second driven wheel 604 and is axially positioned via a bearing assembly, ensuring that the two driven wheel assemblies remain coaxial. The transmission gears 605 are distributed in a spiral array along the axial direction of the connecting shaft, and multi-stage power distribution is achieved through optimized tooth profile design. The transmission frame 9 welded to the inner wall of the second driven wheel 604 adopts a cross structure. Its four ends are supported at multiple points by tapered roller bearings and the inner wall of the connecting box 7. While receiving rotational power, it transforms the single-shaft drive into the composite motion trajectory of the stirring mechanism 8.

[0050] Reference Figure 1 and Figure 4 as well as Figure 5The stirring mechanism 8 includes: three first rotating shafts 804, each first rotating shaft 804 being rotatably connected to the bottom of the transmission frame 9, and the top of the first rotating shaft 804 extending to the inner side of the transmission frame 9; a driven gear 606 is sleeved and fixed on the outer surface of the top of the first rotating shaft 804, and the driven gear 606 meshes with the transmission gear 605 respectively; a second rotating shaft 806, fixed to one side of the bottom of the transmission frame 9; and a scraper 805, fixed to the side wall of the second rotating shaft 806. The stirring mechanism 8 also includes a stirring frame 801, with several crossbars 802 evenly fixed on the inner wall of the stirring frame 801, and the top of the stirring frame 801 being fixed to the bottom of one of the first rotating shafts 804; a support frame 807, with a triangular plate 808 fixed on the side wall of the support frame 807, and the top of the support frame 807 being fixed to the bottom of another first rotating shaft 804; and a pulverizing blade 803, sleeved and fixed on the outer surface of the first rotating shaft 804.

[0051] Two first rotating shafts 804 are connected to the mixing frame 801 and the support frame 807 respectively. The third shaft adopts a two-stage series structure, with two sets of crushing blades 803 sequentially fitted on its outer circumference from top to bottom, forming a three-dimensional crushing working area. The crossbar 802 of the mixing frame 801 adopts a variable cross-section design, and its material-facing surface is set with a guide angle to generate a turbulent effect during rotation, effectively increasing the contact frequency between fly ash particles and the washing medium. The triangular plate 808 of the support frame 807 has a sawtooth arch-breaking structure on its edge, which can implement high-frequency impact on the deposited material to prevent agglomeration. The second rotating shaft 806 is rigidly connected to the transmission frame 9 through a flange. Its axis forms a 5° eccentric angle with the center line of the mixing tank 5, ensuring that the scraper 805 maintains dynamic contact with the inner wall of the tank during rotation. The working surface of the scraper adopts a biomimetic curved surface design, which reduces operating resistance while achieving efficient wall cleaning.

[0052] The working principle of the mixing device of the fly ash washing mixing tank of this utility model is as follows: First, the fly ash is placed into the mixing tank 5, then the mixing tank 5 is placed on the moving vehicle 4, the moving vehicle 4 is moved above the hydraulic lifting cylinder 3, the hydraulic lifting cylinder 3 is started, the hydraulic lifting cylinder 3 pushes the cross push column 301, so that the cross push column 301 pushes the mixing tank 5 to rise, so that the mixing mechanism 8 enters the interior of the mixing tank 5.

[0053] The first drive motor 601 and the second drive motor 602 are started. The first drive motor 601 and the second drive motor 602 drive the first driven wheel 603 and the second driven wheel 604 to rotate through two transmission wheels and a belt. The first driven wheel 603 drives the transmission gear 605 of the connecting shaft, and the second driven wheel 604 drives the transmission frame 9 to rotate. The rotation of the transmission frame 9 drives the first rotating shaft 804 and the second rotating shaft 806 to rotate. The multiple transmission gears 605 drive the multiple driven gears 606 to rotate. The driven gears 606 drive the first rotating shaft 804 to rotate. The first rotating shaft 804 drives the stirring frame 801, the crushing blades 803 and the support frame 807 to rotate. The crossbar 802 on the stirring frame 801 increases the fly ash separation efficiency. The triangular plate 808 on the support frame 807 impacts the fly ash. The crushing blades 803 crush the large particles in the fly ash. The scraper 805 on the second rotating shaft 806 scrapes off the material accumulated on the inner wall of the mixing tank 5.

[0054] It should be noted that, in actual implementation, the structure depicted in the accompanying drawings is not a fixed or unchanging embodiment. The components of the embodiments of this invention described and shown in these drawings can typically be arranged and designed in various different configurations. Furthermore, the accompanying drawings and abstract drawings are merely illustrative and do not represent the specific structure or actual quantity in a concrete implementation.

[0055] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The use of terms such as "a" or "an" in this specification and claims does not necessarily indicate a limitation on quantity. Terms such as "comprising" or "including" mean that the element or component preceding the word encompasses the element or component listed following the word and its equivalents, without excluding other elements or components. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0056] The exemplary embodiments of the present invention have been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the concept of the present invention, and various combinations can be made to the various technical features and structures proposed by the present invention without exceeding the protection scope of the present invention.

Claims

1. A stirring device for a fly ash washing mixing tank, characterized in that, include: A workbench (1) is provided with a movable cart (4) on the top of the workbench (1), and a mixing tank (5) is supported on the top of the movable cart (4). A transmission mechanism (6) is fixedly installed on one side of the top of the workbench (1), a connecting box (7) is fixedly connected to the side of the workbench (1), and a stirring mechanism (8) is rotatably connected to the bottom of the connecting box (7). The transmission mechanism (6) is connected to the stirring mechanism (8) in a transmission connection. The stirring mechanism (8) includes: a transmission frame (9) and a transmission gear (605); Three first rotating shafts (804) are rotatably connected to the bottom of the transmission frame (9), and the top of the first rotating shaft (804) extends to the inside of the transmission frame (9); A driven gear (606) is fixedly fitted on the outer surface of the top of the first rotating shaft (804), and the driven gear (606) meshes with the transmission gear (605); The second rotating shaft (806) is fixed to one side of the bottom of the transmission frame (9); The scraper (805) is fixed to the side wall of the second rotating shaft (806); The stirring mechanism (8) further includes a stirring frame (801), the inner wall of which is uniformly fixed with several crossbars (802), and the top of the stirring frame (801) is fixed to the bottom of one of the first rotating shafts (804). A support frame (807) has a triangular plate (808) fixed to its side wall, and the top of the support frame (807) is fixed to the bottom of another first rotating shaft (804); The crushing blade (803) is sleeved and fixed on the outer surface of the first rotating shaft (804).

2. The stirring device of the fly ash washing mixing tank according to claim 1, characterized in that: A hydraulic lifting cylinder (3) is fixed at the bottom of the workbench (1); The output end of the hydraulic lifting cylinder (3) is fixed with a cross push column (301). The cross-shaped push column (301) is located below the stirring mechanism (8).

3. The stirring device of the fly ash washing mixing tank according to claim 1, characterized in that: The transmission mechanism (6) includes: The first drive motor (601) and the second drive motor (602) are respectively fixed to one side of the top of the workbench (1); The first driven wheel (603) is rotatably connected inside the connecting box (7); Second driven wheel (604); A connecting shaft passes through the second driven wheel (604), and a plurality of transmission gears (605) are fixed from top to bottom on the bottom of the outer surface of the connecting shaft.

4. The stirring device of the fly ash washing mixing tank according to claim 3, characterized in that: The first drive motor (601) has a first transmission wheel fixed at its output end, and the second drive motor (602) has a second transmission wheel fixed at its output end; The first drive wheel and the first driven wheel (603) are connected by belt drive, and the second drive wheel and the second driven wheel (604) are connected by belt drive.

5. The stirring device of the fly ash washing mixing tank according to claim 3, characterized in that: The inner wall of the second driven wheel (604) is fixed with a transmission frame (9); The transmission frame (9) is rotatably connected inside the connecting box (7).

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