An environmentally friendly black slurry mixing and stirring drive device

Abstract

This utility model discloses an environmentally friendly black slurry mixing and stirring drive device, including two symmetrically arranged supports. A lead screw and a guide rod are respectively arranged on opposite sides of the two supports. A first drive motor is fixedly installed on one side surface of one support, and a first gear is installed at the output end of the first drive motor. A second gear is installed at one end of the lead screw, and the second gear meshes with the first gear. A threaded block is fitted onto the surface of the lead screw. A guide block is slidably connected to the surface of the guide rod, and a support frame is provided between the guide block and the threaded block. In this utility model, compressed air is used to form a fine bubble flow through the air outlet. During the upward movement, the bubble drives the material to flow vertically, forming a three-dimensional mixing field with the horizontal shear force of the stirring blades. This significantly shortens the dispersion time of the environmentally friendly black slurry, improves the fineness qualification rate, and the micro-impact generated by the bubble bursting helps to break up pigment agglomerates, eliminating the need for an additional grinding process and significantly reducing energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of environmentally friendly material production equipment technology, and in particular to an environmentally friendly black slurry mixing and stirring drive device. Background Technology

[0002] In the production process of environmentally friendly black pigment, mixing and stirring are key steps to ensure uniform pigment dispersion and stable performance. Traditional stirring technology mainly relies on a single mechanical drive.

[0003] Existing technologies have the following problems:

[0004] When the pigment content in the black paste is high, such as nano-grade carbon black accounting for more than 30%, the viscosity of the material increases significantly. Traditional paddle mixers have difficulty penetrating deep layers of material, resulting in severe pigment deposition at the bottom. This requires extending the mixing time, leading to high energy consumption. For pigment particles that are prone to agglomeration, simple mechanical shearing force is insufficient to effectively break up the agglomerates, often resulting in "false dispersion." The pass rate of fineness testing of the finished product is low, requiring repeated material reprocessing. The dispersion uniformity is insufficient. The mixing blades of traditional mixing devices are fixed at a single height and cannot cover multiple layers of material in the tank, especially in mixing tanks with a height of more than 2 meters. The mixing time difference between the upper and lower layers is large, resulting in deviations in color uniformity and limiting the mixing range.

[0005] To address these shortcomings, we have proposed an environmentally friendly black slurry mixing and stirring drive device. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing an environmentally friendly black slurry mixing and stirring drive device.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: an environmentally friendly black slurry mixing and stirring drive device, comprising two symmetrically arranged supports, with a lead screw and a guide rod respectively arranged on opposite sides of the two supports, a first drive motor fixedly mounted on one side surface of one support, and a first gear mounted on the output end of the first drive motor, a second gear mounted on one end of the lead screw, and the second gear meshing with the first gear, a threaded block fitting on the surface of the lead screw, a guide block slidably connected to the surface of the guide rod, and a support frame provided between the guide block and the threaded block, a stirring rod rotatably connected to the surface of the support frame, and a stirring blade welded to the surface of the stirring rod, air vents being opened on the surfaces of both the stirring rod and the stirring blade, a mounting frame welded to the surface of the support frame, and an air compressor fixedly mounted on the top surface of the mounting frame, a connecting pipe mounted on the air outlet end of the air compressor, and the connecting pipe connected to one end of the stirring rod through a high-speed rotary joint, a driven gear mounted on the upper surface of the stirring rod, a second drive motor fixedly mounted on the bottom surface of the support frame, and a driving gear mounted on the output end of the second drive motor, and the driving gear meshing with the driven gear.

[0008] Preferably, the air outlet is provided in multiple locations, and the multiple air outlets are equidistantly distributed on the surface of the stirring blade and the stirring rod.

[0009] Preferably, there are multiple stirring rods, and the multiple stirring rods are arranged in a ring array on the surface of the support frame.

[0010] Preferably, the air compressor, the first drive motor, and the second drive motor are all electrically connected to an external power source via wires.

[0011] Preferably, the guide rod and the lead screw are arranged parallel to each other, and the two have the same length.

[0012] Preferably, the number of high-speed rotary joints is the same as the number of stirring rods.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model uses compressed air to form a fine bubble flow through the air outlet. During the upward process, it drives the material to flow vertically and forms a three-dimensional mixing field with the horizontal shear force of the stirring blade. This greatly shortens the dispersion time of the environmentally friendly black paste and improves the fineness qualification rate. The micro-impact generated by the bubble rupture helps to break up pigment agglomerates. No additional grinding process is required, and energy consumption is greatly reduced.

[0015] (2) This utility model adopts three layers of stirring blades, upper, middle and lower, designed for the suspension and dispersion of materials, particle crushing and bottom pushing of materials respectively. Combined with the lifting mechanism driven by the screw, the material circulation of the entire height of the tank can be completed in a short time. The color difference between the upper and lower layers of materials is small and the uniformity is significantly improved. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the embodiments will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the structure of an environmentally friendly black slurry mixing and stirring drive device proposed in this utility model;

[0018] Figure 2 for Figure 1 Enlarged diagram of A in the middle;

[0019] Figure 3 for Figure 1 A magnified view of B in the middle.

[0020] Legend:

[0021] 1. Bracket; 2. First drive motor; 3. First gear; 4. Lead screw; 5. Second gear; 6. Threaded block; 7. Guide rod; 8. Guide block; 9. Support frame; 10. Second drive motor; 11. Drive gear; 12. Stirring rod; 13. Driven gear; 14. High-speed rotary joint; 15. Mounting bracket; 16. Air compressor; 17. Connecting pipe; 18. Stirring blade; 19. Air outlet. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0023] Please refer to Figure 1-3An environmentally friendly black slurry mixing and stirring drive device includes two symmetrically arranged supports 1. A lead screw 4 and a guide rod 7 are respectively arranged on opposite sides of the two supports 1. A first drive motor 2 is fixedly mounted on one side surface of one support 1, and a first gear 3 is mounted on the output end of the first drive motor 2. A second gear 5 is mounted on one end of the lead screw 4, and the second gear 5 meshes with the first gear 3. A threaded block 6 is fitted onto the surface of the lead screw 4. A guide block 8 is slidably connected to the surface of the guide rod 7, and a support frame 9 is provided between the guide block 8 and the threaded block 6. A stirring rod 12 is rotatably connected to the surface of the support frame 9, and a stirring blade 18 is welded to the surface of the stirring rod 12. Both the surface of the stirring blade 18 and the support frame 9 are provided with air vents 19. A mounting bracket 15 is welded to the surface of the support frame 9, and an air compressor 16 is fixedly mounted on the top surface of the mounting bracket 15. A connecting pipe 17 is installed at the air outlet end of the air compressor 16, and the connecting pipe 17 is connected to one end of the stirring rod 12 through a high-speed rotary joint 14. A driven gear 13 is installed on the upper surface of the stirring rod 12. A second drive motor 10 is fixedly mounted on the bottom surface of the support frame 9, and a drive gear 11 is installed at the output end of the second drive motor 10. The drive gear 11 meshes with the driven gear 13. First, the first drive motor 2 is started by the external electrical control system, and its output shaft drives the first gear 3. The rotation, through meshing transmission, causes the lead screw 4 to rotate. The lead screw 4 is rotatably connected to the surface of the support 1. The threaded block 6 moves axially along the lead screw 4, driving the support frame 9 and the stirring assembly to rise and fall along the guide rod 7, adjusting to the preset stirring height, such as 10cm from the bottom of the tank. Then, the second drive motor 10 is started, and the driving gear 11 drives the driven gear 13 to drive the stirring rod 12 to rotate at high speed. The stirring blades 18 apply horizontal shearing force to the material. At the same time, the air compressor 16 supplies air to the stirring rod 12 through the connecting pipe 17 and the high-speed rotary joint 14. The compressed air is sprayed out through the air outlet 19 to form a fine bubble flow. During the rise of the bubbles, the material is vertically convectioned, forming a three-dimensional mixing field with the mechanical stirring. During the stirring process, the lifting speed of the first drive motor 2 (e.g., 0.1-0.5 m / min), the speed of the second drive motor 10 (e.g., 500-1500 r / min), and the speed of the air compressor 16 can be adjusted in real time through the electronic control system. The ventilation pressure, such as 0.1-0.3MPa, can be adjusted to meet the mixing requirements of materials with different viscosities. After mixing, the air source and motor are turned off, and the support frame 9 is raised to the top of the tank for easy cleaning or replacement of the mixing components.

[0024] In this embodiment, multiple air outlets 19 are provided, and the multiple air outlets 19 are equidistantly distributed on the surface of the stirring blade 18 and the stirring rod 12.

[0025] Specifically, the diameter of the air outlet 19 is 0.5-1mm, and it is distributed in an equidistant ring array along the surface of the stirring blade 18. The distance between adjacent holes is 5-10mm. A ring of air outlets 19 is set every 10-15cm in the middle of the stirring rod 12 to ensure that the compressed air forms a uniform and fine bubble flow in the material and avoids leveling defects caused by the aggregation of large bubbles.

[0026] In this embodiment, multiple stirring rods 12 are provided, and the multiple stirring rods 12 are distributed in a ring array on the surface of the support frame 9.

[0027] Specifically, there are 3-6 stirring rods 12, which are evenly distributed radially around the center of the support frame 9. The included angle between adjacent stirring rods 12 is 60°-120°, forming a multi-axis synergistic stirring effect, expanding the horizontal mixing coverage, and improving the material uniformity within the cross-section of the tank.

[0028] In this implementation scheme: the air compressor 16, the first drive motor 2, and the second drive motor 10 are all electrically connected to an external power source via wires.

[0029] Specifically, the rated exhaust pressure of the air compressor 16 is 0.3-0.5MPa, the power of the first drive motor 2 is 2-5kW and the speed is 100-300r / min, the power of the second drive motor 10 is 5-15kW and the speed is 500-1500r / min. The three are centrally controlled through the same electrical control cabinet, and multi-stage stirring programs can be preset, such as high-speed rotation + strong ventilation in the pre-dispersion stage, and low-speed lifting + weak ventilation in the fine mixing stage.

[0030] In this implementation scheme: the guide rod 7 and the lead screw 4 are arranged in parallel, and the two have the same length.

[0031] Specifically, the guide rod 7 and the lead screw 4 are both 2-4 meters long, matching the height of the mixing tank. The guide block 8 and the threaded block 6 are fixed to both sides of the support frame 9 by bolts, forming a stable structure of "lead screw drive + guide limit", ensuring that the verticality deviation of the support frame 9 during the lifting process is ≤0.5mm / m, and avoiding collision between the mixing rod 12 and the side wall of the tank.

[0032] In this embodiment, the number of high-speed rotary joints 14 is the same as the number of stirring rods 12.

[0033] Specifically, each stirring rod 12 is equipped with an independent high-speed rotary joint 14 at its top, with a pressure resistance of 0.6MPa and a rotation speed of ≤2000r / min. The connecting pipe 17 is connected to each rotary joint through a gas distribution valve to achieve stable delivery of compressed air when the stirring rod 12 rotates at high speed, up to 1500r / min. At the same time, a fluororubber sealing ring is used to prevent gas leakage, with a sealing life of ≥5000 hours.

[0034] Working Principle: During operation, the first drive motor 2 is started by the external electrical control system. Its output shaft drives the first gear 3 to rotate, which in turn causes the lead screw 4 to rotate through meshing transmission. The threaded block 6 moves axially along the lead screw 4, driving the support frame 9 and the stirring assembly to move up and down along the guide rod 7 to adjust to the preset stirring height, such as 10cm from the bottom of the tank. Then, the second drive motor 10 is started. The driving gear 11 drives the driven gear 13 to rotate the stirring rod 12 at high speed. The stirring blades 18 apply horizontal shearing force to the material. At the same time, the air compressor 16 supplies air to the stirring rod 12 through the connecting pipe 17 and the high-speed rotary joint 14. The compressed air is sprayed out through the air outlet 19 to form a fine bubble flow. As the bubbles rise, they drive the material to convect vertically, forming a three-dimensional mixing field with the mechanical stirring. During the stirring process, the lifting speed of the first drive motor 2 (e.g., 0.1-0.5 m / min), the speed of the second drive motor 10 (e.g., 500-1500 r / min), and the speed of the air compressor 16 can be adjusted in real time through the electrical control system. The ventilation pressure, such as 0.1-0.3MPa, can be adjusted to meet the mixing requirements of materials with different viscosities. After mixing, the air source and motor are turned off, and the support frame 9 is raised to the top of the tank for easy cleaning or replacement of the mixing components.

[0035] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. An environmentally friendly black slurry mixing and stirring drive device, comprising two symmetrically arranged supports (1), characterized in that, Two supports (1) are respectively provided with lead screws (4) and guide rods (7) on their opposite sides. A first drive motor (2) is fixedly installed on one side surface of one support (1), and a first gear (3) is installed at the output end of the first drive motor (2). A second gear (5) is installed at one end of the lead screw (4), and the second gear (5) meshes with the first gear (3). A threaded block (6) is used to fit the surface of the lead screw (4). A guide block (8) is slidably connected to the surface of the guide rod (7), and a support frame (9) is provided between the guide block (8) and the threaded block (6). A stirring rod (12) is rotatably connected to the surface of the support frame (9), and a stirring blade (18) is welded to the surface of the stirring rod (12). The surfaces of the stirring rod (12) and the stirring blade (18) are provided with air outlet holes (19). The surface of the support frame (9) is welded with a mounting bracket (15), and an air compressor (16) is fixedly installed on the top surface of the mounting bracket (15). A connecting pipe (17) is installed at the air outlet end of the air compressor (16), and the connecting pipe (17) is connected to one end of the stirring rod (12) through a high-speed rotary joint (14). A driven gear (13) is installed on the upper surface of the stirring rod (12). A second drive motor (10) is fixedly installed on the bottom surface of the support frame (9), and a drive gear (11) is installed at the output end of the second drive motor (10), and the drive gear (11) meshes with the driven gear (13).

2. The environmentally friendly black slurry mixing and stirring drive device according to claim 1, characterized in that, The air outlet (19) is provided in multiple ways, and the multiple air outlets (19) are equidistantly distributed on the surface of the stirring blade (18) and the stirring rod (12).

3. The environmentally friendly black slurry mixing and stirring drive device according to claim 1, characterized in that, The stirring rod (12) is provided in multiple ways, and the multiple stirring rods (12) are distributed in a ring array on the surface of the support frame (9).

4. The environmentally friendly black slurry mixing and stirring drive device according to claim 1, characterized in that, The air compressor (16), the first drive motor (2), and the second drive motor (10) are all electrically connected to an external power source via wires.

5. The environmentally friendly black slurry mixing and stirring drive device according to claim 1, characterized in that, The guide rod (7) is arranged parallel to the lead screw (4), and the two have the same length.

6. The environmentally friendly black slurry mixing and stirring drive device according to claim 1, characterized in that, The number of high-speed rotary joints (14) is the same as the number of stirring rods (12).

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