Precise metering and mixing device for inhibitors for carbon black production

Abstract

The utility model relates to carbon inhibitor's accurate measurement and mixing device belongs to carbon black production technical field, specifically is carbon black production with inhibitor's accurate measurement and mixing device, including jar body, tank cover, stirring device, weighing measurement mechanism, transparent drainage tube subassembly and air pump mechanism etc. Weighing measurement mechanism can realize accurate measurement and flexible switching of multiple inhibitors, transparent drainage tube subassembly adopts transparent corrosion -resistant material, and visual management is convenient, air pump mechanism and transparent drainage tube subassembly cooperate, can completely discharge high viscosity inhibitor, realize zero residual delivery. The utility model reached accurate measurement, zero residual delivery, visual management's effect, solved the problem that existing device cannot flexible switching multiple raw materials, high viscosity inhibitor is easy to residual drop and is difficult to observe drainage state.

Description

Technical Field

[0001] This utility model relates to the field of carbon black production technology, and in particular to a precise metering and mixing device for inhibitors used in carbon black production. Background Technology

[0002] In the carbon black production field, the precise delivery and complete utilization of inhibitors are crucial for ensuring product quality and controlling production costs. Inhibitors used in the production process are mostly high-viscosity materials, and their residue and leakage in the delivery pipelines can lead to raw material waste, contamination of production equipment, and even affect the stability and uniformity of subsequent carbon black synthesis reactions.

[0003] A search revealed Chinese patent CN222724191U, which discloses a fully mixing inhibitor stirring device. The device includes a stirring tank, two sets of support frames, a stirring assembly, and a feeding assembly. The two sets of support frames are symmetrically mounted on the side wall of the stirring tank via bolts. This patent utilizes a stirring assembly and a cylinder to raise and lower the height of the top cover, facilitating cleaning of the inner wall of the stirring tank and maintenance of its internal structure. After the inhibitor raw material is added, a motor drives a transmission shaft to rotate. The rotation of the transmission shaft drives a first gear and a second crossbar to rotate, which in turn drives a second gear, which in turn drives a first crossbar. The rotation of the first and second crossbars then drives a first and a second stirring rod, thus mixing the inhibitor raw material in the stirring tank. The horizontal and vertical stirring of multiple sets of first and second stirring rods achieves thorough mixing.

[0004] Based on the above search results and existing technologies, the following findings were made:

[0005] Existing inhibitor metering and mixing devices for carbon black production have flaws in their inhibitor delivery structure design. Most use ordinary pipelines to transport high-viscosity inhibitors. After the metered delivery is completed and the valve is closed, the high-viscosity inhibitor, due to its poor flowability, easily adheres to the inner wall of the pipeline. Furthermore, existing devices lack structures to assist in the complete removal of residual material, making it impossible to use external force to push the residual inhibitor in the pipeline completely into the reaction vessel. Over time, the residual inhibitor not only wastes raw materials, but the dripping material also contaminates the equipment and working environment. When the residual material participates in subsequent reactions, it interferes with the precise control of the carbon black production process, leading to product quality fluctuations and seriously affecting the continuity and stability of carbon black production. Utility Model Content

[0006] To address the aforementioned technical problems, this invention proposes a precise metering and mixing device for inhibitors used in carbon black production. The air pump mechanism works in conjunction with the transparent drainage pipe assembly. After the inhibitor is discharged, the airflow generated by the air pump enters the transparent drainage hopper through the exhaust branch pipe, completely discharging the high-viscosity inhibitors remaining inside. This achieves zero-residue delivery and solves the problem of high-viscosity inhibitors remaining and leaking in the pipeline, leading to raw material waste and affecting subsequent production.

[0007] The technical solution to achieve the purpose of this utility model is: a precise metering and mixing device for inhibitors in carbon black production, including a tank and a tank cover on the top of the tank, a stirring device, wherein the stirring device is installed inside the tank and a motor for driving the stirring device is installed on the top of the tank cover, and also includes;

[0008] A weighing and measuring mechanism is symmetrically arranged on both sides of the top of the can lid;

[0009] Weighing and measuring institutions include:

[0010] A robotic arm, which is mounted on the top edge of the can lid;

[0011] A weighing device is movably mounted on the top of a robotic arm. A hook is provided at the bottom of the weighing device, and an inhibitor storage tank is suspended at the bottom of the hook. A solenoid valve is installed at the bottom discharge pipe of the inhibitor storage tank.

[0012] A transparent drainage tube assembly includes a transparent drainage hopper disposed below a corresponding solenoid valve. The upper end of the transparent drainage hopper is provided with an upper inlet connected to the lower end of the solenoid valve, and the bottom of the transparent drainage hopper is connected with a lower discharge port. A feed pipe inserted into the tank body is installed on the top of the tank cover, and the upper end of the feed pipe is connected to the lower end of the lower discharge port.

[0013] The air pump mechanism includes an air pump installed on the top of the can lid. The air pump has multiple output ends, and the output ends of the air pump are connected to exhaust branch pipes. The exhaust branch pipes are connected to the upper air inlet provided at the upper end of the transparent diversion hopper.

[0014] In some embodiments, the transparent guide hopper, the upper feed inlet, the upper air inlet, and the lower discharge outlet are all integrally molded from corrosion-resistant transparent engineering plastic.

[0015] In some embodiments, the top of the robotic arm has a C-shaped structure, and the weighing device has a T-shaped structure, with the weighing device snapped downwards onto the top of the robotic arm.

[0016] In some embodiments, the air pump mechanism further includes a support frame mounted on the top of the canister lid, with an exhaust branch pipe passing through the side of the support frame, and the support frame being used to support the exhaust branch pipe.

[0017] In some embodiments, the stirring device includes a rotating shaft and multiple sets of stirring blades disposed on the rotating shaft, and the stirring blades are spirally distributed from top to bottom on the rotating shaft, with the bottom stirring blades being ≤10cm from the bottom of the tank.

[0018] In some embodiments, the bottom of the tank is provided with a discharge bottom pipe equipped with a control valve.

[0019] Compared with existing technologies, the significant advantages of this invention are:

[0020] Firstly, this utility model is designed with an air pump mechanism and a transparent drainage tube assembly. When the inhibitor is discharged, the airflow generated by the air pump enters the transparent drainage hopper through the exhaust branch pipe, completely discharging the high-viscosity inhibitor remaining inside, achieving zero-residue delivery, and solving the problem of high-viscosity inhibitor residue and leakage in the pipeline, which leads to raw material waste and affects subsequent production.

[0021] Secondly, this utility model uses a weighing and metering mechanism composed of a robotic arm, a weighing device, and an inhibitor storage tank. The robotic arm can move flexibly to switch the position of the inhibitor storage tank, and the weighing device can measure accurately in real time. This realizes the flexible switching and accurate measurement of multiple inhibitors, which changes the limitation of traditional fixed metering tanks that cannot flexibly switch between multiple raw materials and meets the diverse needs for accurate proportioning of different inhibitors in the carbon black production process.

[0022] Thirdly, the transparent drainage hopper of this utility model is integrally molded from corrosion-resistant transparent engineering plastic and has a three-interface design with an upper feed port, an upper air inlet, and a lower discharge port. The transparent material allows operators to observe the inhibitor drainage status in real time and detect blockages and other faults in a timely manner. The integral molding structure enhances the connection strength and sealing performance, reduces the risk of leakage, and realizes visual management and gas-liquid coordinated control, solving the problem that existing devices cannot observe the drainage status and faults in real time. Attached Figure Description

[0023] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0024] Figure 1 This is a three-dimensional structural diagram of the precision metering and mixing device provided in one embodiment of the present invention;

[0025] Figure 2 This is a partial three-dimensional structural diagram of the top of the can lid provided in one embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram showing the connection of the weighing and measuring mechanism, the transparent drain tube assembly, and the air pump mechanism on the can lid in one embodiment of the present invention;

[0027] Figure 4This is a top view of the precision metering and mixing device provided in one embodiment of the present invention;

[0028] Figure 5 This is a side view of the installation of the precision metering and mixing device provided in one embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100. Tank body; 101. Discharge bottom pipe; 200. Tank cover; 201. Feed pipe; 300. Motor;

[0031] 301. Rotary shaft; 302. Stirring blade; 400. Robotic arm; 500. Weighing device; 501. Hook;

[0032] 600, Inhibitor storage tank; 601, Solenoid valve; 700, Transparent diversion hopper; 701, Top feed inlet;

[0033] 702. Upper air inlet; 703. Lower discharge outlet; 800. Air pump; 801. Exhaust branch pipe; 802. Support frame. Detailed Implementation

[0034] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0035] This invention improves the precise metering and mixing device for inhibitors used in carbon black production. The technical solution of this invention is as follows:

[0036] Figures 1-5 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-5 The present invention will be further described below.

[0037] like Figure 1-5 As shown, the precise metering and mixing device for the inhibitor in carbon black production includes a tank 100 and a tank cover 200 on top of the tank 100. A motor 300 is installed on the top of the tank cover 200, which drives a stirring device located inside the tank 100. Weighing and metering mechanisms are symmetrically arranged on both sides of the top of the tank cover 200. An air pump mechanism is also installed on the top of the tank cover 200. A transparent drainage tube assembly on the top of the tank cover 200 is connected to the weighing and metering mechanisms and the tank 100.

[0038] like Figure 1 , 2As shown, in one embodiment, the weighing and measuring mechanism includes a robotic arm 400 installed at the top edge of the can lid 200. The top of the robotic arm 400 has a C-shaped structure, and a T-shaped weighing device 500 is movably mounted on the C-shaped structure. The weighing device 500 is snapped downwards onto the top of the robotic arm 400. A hook 501 is provided at the bottom of the weighing device 500, and an inhibitor storage tank 600 is suspended at the bottom of the hook 501. A solenoid valve 601 is installed at the bottom discharge pipe of the inhibitor storage tank 600. With the setup of robotic arm 400, weighing device 500, and inhibitor storage tank 600, robotic arm 400 can move flexibly, moving inhibitor storage tank 600 to different positions. Weighing device 500 weighs and measures the inhibitor in inhibitor storage tank 600 in real time. When multiple inhibitors are needed or inhibitors are used alternately, robotic arm 400 can easily switch between different inhibitor storage tanks 600, and weighing device 500 can accurately control the dosage of each inhibitor, thereby achieving accurate measurement of multiple inhibitors or alternating use, solving the problem that traditional fixed metering tanks cannot flexibly switch between multiple raw materials.

[0039] like Figure 2 , 3 As shown, in one embodiment, the transparent drainage tube assembly includes a transparent drainage hopper 700 disposed below the corresponding solenoid valve 601. The upper end of the transparent drainage hopper 700 is provided with an upper inlet 701 connected to the lower end of the solenoid valve 601. The top of the transparent drainage hopper 700 is provided with an upper air inlet 702, and the bottom of the transparent drainage hopper 700 is connected to a lower discharge port 703. A feed pipe 201 inserted into the tank body 100 is installed on the top of the tank cover 200, and the upper end of the feed pipe 201 is connected to the lower end of the lower discharge port 703. The transparent drainage hopper 700, the upper inlet 701, the upper air inlet 702, and the lower discharge port 703 are all integrally molded from corrosion-resistant transparent engineering plastic. Because the transparent drainage hopper 700 is made of transparent material, operators can observe the flow status of the inhibitor in the drainage hopper in real time and promptly detect any blockages or other faults, thus achieving visual management. At the same time, the one-piece molded structure ensures the connection strength and sealing between the interfaces, reducing the possibility of leakage.

[0040] like Figure 2 , 3As shown, in one embodiment, the air pump mechanism includes an air pump 800 installed on the top of the can lid 200. The air pump 800 is provided with multiple sets of output ends, and the output ends are connected to exhaust branch pipes 801. A support frame 802 is also installed on the top of the can lid 200. The exhaust branch pipe 801 passes through the side of the support frame 802. The support frame 802 is used to support the exhaust branch pipe 801. The exhaust branch pipe 801 is connected to the upper air inlet 702 provided at the upper end of the transparent diversion hopper 700. When the solenoid valve 601 on the bottom discharge pipe of the inhibitor storage tank 600 is closed, the air pump 800 is activated. The airflow generated by the air pump 800 is delivered to the transparent guide hopper 700 through the exhaust branch pipe 801. The airflow creates pressure within the transparent guide hopper 700, forcing the high-viscosity inhibitor inside to be discharged through the lower discharge port 703. This ensures that all the inhibitor flows into the feed pipe 201 through the lower discharge port 703 and then into the tank body 100. This airflow-assisted discharge of residual liquid achieves zero-residue delivery and solves the problem of high-viscosity inhibitor residue / leaking in the pipeline. The support frame 802 provides support for the exhaust branch pipe 801, making the air circuit connection more stable and reliable.

[0041] like Figure 1 As shown, in one embodiment, the stirring mechanism includes a rotating shaft 301 and multiple sets of stirring blades 302 disposed on the rotating shaft 301. The stirring blades 302 are spirally distributed from top to bottom on the rotating shaft 301, with the bottommost stirring blade 302 being ≤10cm from the bottom of the tank 100. When the rotating shaft 301 rotates, the spirally distributed stirring blades 302 can form a spiral stirring flow from the top to the bottom of the tank 100, allowing the inhibitor and other materials to be more thoroughly mixed within the tank 100. The bottommost stirring blade 302 is closer to the bottom of the tank, effectively stirring the material at the bottom of the tank, preventing material accumulation at the bottom, and improving the uniformity of mixing.

[0042] like Figure 5 As shown, in one embodiment, the bottom of the tank 100 is provided with a discharge bottom pipe 101 with a control valve to facilitate the discharge of materials after mixing.

[0043] The working principle and usage process of this utility model are as follows: First, according to production needs, the robotic arm 400 moves the corresponding inhibitor storage tank 600 to a suitable position above the tank cover 200. The weighing device 500 weighs the inhibitor in the inhibitor storage tank 600. When the required weight is reached, the addition of inhibitor is stopped. Then, the solenoid valve 601 at the bottom discharge pipe of the inhibitor storage tank 600 is opened. The inhibitor flows into the transparent guide hopper 700 through the upper inlet 701, and then enters the tank body 100 through the lower discharge port 703 and the inlet pipe 201. When the inhibitor is completely discharged, the solenoid valve 601 is closed, and the air pump 800 is started. The airflow output by the air pump 800 enters the upper air inlet 702 of the transparent guide hopper 700 through the exhaust branch pipe 801, creating pressure within the transparent guide hopper 700 and pushing out any remaining high-viscosity inhibitor from the lower discharge port 703, ensuring no residue. Simultaneously, the motor 300 drives the rotating shaft 301 to rotate, which in turn drives the spirally distributed stirring blades 302 to stir and mix the material in the tank 100. During the stirring process, the spiral stirring blades cause the material to circulate up and down, ensuring uniform mixing. When it is necessary to change to a different inhibitor, the robotic arm 400 moves and switches to a different inhibitor storage tank 600, repeating the above metering and feeding process. After mixing is completed, the control valve of the discharge bottom pipe 101 at the bottom of the tank 100 is opened to discharge the mixed material.

[0044] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A precise metering and mixing device for inhibitors used in carbon black production, comprising a tank (100) and a tank cover (200) on top of the tank (100), characterized in that: Also includes; A stirring device is provided inside the tank body (100), and a motor (300) for driving the stirring device is provided on the top of the tank cover (200); A weighing and measuring mechanism is symmetrically arranged on both sides of the top of the can lid (200); Weighing and measuring institutions include: A robotic arm (400) is mounted on the top edge of the can lid (200); Weighing device (500), the weighing device (500) is movably mounted on the top of the robotic arm (400), the bottom of the weighing device (500) is provided with a hook (501), the bottom of the hook (501) is suspended with an inhibitor storage tank (600), and a solenoid valve (601) is installed at the bottom discharge pipe of the inhibitor storage tank (600). A transparent drainage tube assembly includes a transparent drainage hopper (700) disposed below a corresponding solenoid valve (601). The upper end of the transparent drainage hopper (700) is provided with an upper inlet (701) connected to the lower end of the solenoid valve (601). The bottom of the transparent drainage hopper (700) is connected with a lower outlet (703). The top of the tank cover (200) is equipped with a feed pipe (201) inserted into the tank body (100). The upper end of the feed pipe (201) is connected to the lower end of the lower outlet (703). The air pump mechanism includes an air pump (800) installed on the top of the can lid (200). The air pump (800) is provided with multiple output ends, and the output ends of the air pump (800) are connected to an exhaust branch pipe (801). The exhaust branch pipe (801) is connected to the upper air inlet (702) provided at the upper end of the transparent diversion hopper (700).

2. The precise metering and mixing device for the inhibitor in carbon black production according to claim 1, characterized in that: The transparent diversion hopper (700), the upper feed inlet (701), the upper air inlet (702), and the lower discharge outlet (703) are all integrally molded from corrosion-resistant transparent engineering plastic.

3. The precise metering and mixing device for the inhibitor in carbon black production according to claim 1, characterized in that: The top of the robotic arm (400) has a C-shaped structure, and the weighing device (500) has a T-shaped structure. The weighing device (500) is snapped downwards onto the top of the robotic arm (400).

4. The precise metering and mixing device for the inhibitor in carbon black production according to claim 1, characterized in that: The air pump mechanism also includes a support frame (802) installed on the top of the canister cover (200), and an exhaust branch pipe (801) passes through the side of the support frame (802). The support frame (802) is used to support the exhaust branch pipe (801).

5. The precise metering and mixing apparatus for the inhibitor in carbon black production according to any one of claims 1-4, characterized in that: The stirring device includes a rotating shaft (301) and multiple sets of stirring blades (302) disposed on the rotating shaft (301). The stirring blades (302) are spirally distributed from top to bottom on the rotating shaft (301), and the bottom stirring blade (302) is ≤10cm away from the bottom of the tank (100).

6. The precise metering and mixing device for the inhibitor in carbon black production according to claim 1, characterized in that: The tank body (100) is equipped with a discharge bottom pipe (101) with a control valve at the bottom.

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