Multi-path parallel type auxiliary agent filling device

Abstract

The utility model relates to the technical field of polyvinylidene fluoride production, and particularly discloses a multi-path parallel type additive filling device, which comprises a polymerization kettle and a mixing tank, a liquid level controller and a touch display screen are respectively arranged at the top and the bottom of one end outside the polymerization kettle, and a T-shaped sealing cover I is sleeved at the top outside the polymerization kettle. According to the utility model, by starting the metering pump II and the electromagnetic valve IV, additives such as a surfactant and a regulator in the storage tank enter the mixing tank, after mixing, the metering pump I and the electromagnetic valve V on the regulator injection pipe I are started, and the mixed additives are introduced into the polymerization kettle; when a certain assistant needs to be added independently, a metering pump II below a corresponding storage tank is started, electromagnetic valves IV on an injection pipe I and an injection pipe II are closed, and an electromagnetic valve V on a corresponding regulator injection pipe II and an electromagnetic valve III below a liquid inlet pipe are started, so that the single assistant is injected into the polymerization kettle; and the product quality is improved through accurate addition of various types of auxiliaries.

Description

Technical Field

[0001] This utility model relates to the field of polyvinylidene fluoride production technology, specifically a multi-channel parallel additive dispensing device. Background Technology

[0002] Although the market for coating-grade polyvinylidene fluoride (PVDF) is gradually recovering, raw material costs remain high, putting significant pressure on production costs for companies. To further expand the market and increase the application of PVDF, the company is actively developing higher-quality coating-grade PVDF products based on market demand.

[0003] In the production of coating-grade polyvinylidene fluoride (PVDF), the precise addition of surfactants and modifiers directly affects product quality. The polymerization reaction requires multiple additives, and the current method involves mixing and blending these additives in a single container before injecting them into the polymerization reactor. To improve product quality and more precisely adjust reaction parameters during polymerization, small amounts of one or more additives need to be added, an operation that existing equipment cannot perform. Therefore, to address this issue, we propose a multi-channel parallel additive addition device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-channel parallel additive dispensing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-channel parallel additive dosing device includes a polymerization reactor and a mixing tank. A liquid level controller and a touch screen are respectively installed at the top and bottom of one end of the polymerization reactor. A T-shaped sealing cover is fitted onto the top of the polymerization reactor. An agitator is installed on the top of the T-shaped sealing cover and the top of the other end of the polymerization reactor. The agitator includes a hollow agitator shaft located at the top of the T-shaped sealing cover. The bottom of the hollow agitator shaft penetrates the T-shaped sealing cover and extends into the interior of the polymerization reactor. A connecting sleeve is movably fitted onto the top of the hollow agitator shaft via a bearing. An inlet pipe is connected to the inner wall of the connecting sleeve. A centrifugal pump is connected to the side of the inlet pipe away from the connecting sleeve. The inlet end of the centrifugal pump is connected to a deionized water tank via a pipe. A weighing platform is fitted onto the outside of the mixing tank. A metering pump is connected to the bottom of the mixing tank. A regulator injection pipe is connected to the bottom of the metering pump. The side of the regulator injection pipe away from the metering pump is connected to the inlet pipe.

[0007] Preferably, the bottom of the polymerization reactor is connected to several support legs, and an external drain pipe is connected to the center of the bottom of the polymerization reactor. A solenoid valve is installed on the external drain pipe, and the detection end of the liquid level controller extends into the interior of the polymerization reactor.

[0008] Preferably, a waste discharge pipe is connected to the bottom of the other end of the polymerization reactor, and a second solenoid valve is installed on the waste discharge pipe. A third solenoid valve is installed at the top and bottom of the liquid inlet pipe and directly above the connecting sleeve.

[0009] Preferably, the external connection of the connecting sleeve has several L-shaped support frames, and the side of the L-shaped support frame away from the connecting sleeve is connected to the T-shaped sealing cover.

[0010] Preferably, the top of the mixing tank is connected to an injection pipe 1, and several injection pipes 2 are connected to both sides of the injection pipe 1. The top of the injection pipe 2 and the top of the injection pipe 1 are both connected to a metering pump 2. The top of the metering pump 2 is connected to a storage tank. Solenoid valves 4 are installed on both the injection pipe 2 and the injection pipe 1. A regulator injection pipe 2 is connected to the outside of the injection pipe 2 and the injection pipe 1 and between the metering pump 2 and the solenoid valves 4. The side of the regulator injection pipe 2 away from the injection pipe 2 and the injection pipe 1 is connected to the inlet pipe. Solenoid valves 5 are installed on the side of the regulator injection pipe 2 near the inlet pipe and the side of the regulator injection pipe 1 near the inlet pipe.

[0011] Preferably, the agitating component includes an arc-shaped support plate, one end of which is connected to the polymerization reactor, and an agitating motor is connected to the top of the arc-shaped support plate. The output end of the agitating motor is fitted with a drive pulley, and a driven pulley is fitted on the top of the hollow agitating shaft. A transmission belt is fitted on the outside of both the drive pulley and the driven pulley.

[0012] Preferably, a plurality of stirring frames are connected to the outside of the hollow stirring shaft and inside the polymerization reactor, a plurality of heating rods are connected to the inner wall of the stirring frames, and a temperature sensor is installed on the stirring frames.

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

[0014] This invention utilizes the coordination of a polymerization reactor, a regulator injection pipe 1, a metering pump 2, an injection pipe 2, a solenoid valve 3, a storage tank, an inlet pipe, a mixing tank, a weighing platform, and a regulator injection pipe 2. By opening metering pump 2 and solenoid valve 4, surfactants and regulators from the storage tank enter the mixing tank. After mixing, metering pump 1 and solenoid valve 5 on regulator injection pipe 1 are opened to introduce the mixed additives into the polymerization reactor. When a specific additive needs to be added individually, metering pump 2 below the corresponding storage tank is opened, solenoid valve 4 on injection pipe 1 and injection pipe 2 is closed, and solenoid valve 5 on the corresponding regulator injection pipe 2 and solenoid valve 3 below the inlet pipe are opened, allowing that single additive to be injected into the polymerization reactor. The precise addition of various types of additives improves product quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This utility model Figure 1 A frontal view;

[0017] Figure 3 This is a schematic diagram of the stirring component of this utility model;

[0018] Figure 4 This utility model Figure 3 A bottom view;

[0019] Figure 5 This utility model Figure 1 Top view.

[0020] In the diagram: 1. Polymerization reactor; 2. Touch screen display; 3. Conditioner injection pipe 1; 4. Liquid level controller; 5. T-type sealing cap 1; 6. Metering pump 2; 7. Deionized water tank; 8. Injection pipe 2; 9. Solenoid valve 3; 10. Storage tank; 11. Inlet pipe; 12. Mixing tank; 13. Outlet pipe; 14. Centrifugal pump; 15. Weighing platform; 16. Agitator; 161. Arc-shaped support plate; 162. Agitator motor; 163. Drive pulley; 164. Transmission belt; 165. Connecting sleeve; 166. L-shaped support frame; 167. Driven pulley; 168. Temperature sensor; 169. Heating rod; 1610. Agitator frame; 1611. Hollow agitator shaft; 17. Waste discharge pipe; 18. Conditioner injection pipe 2. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figures 1-5A multi-channel parallel additive dosing device includes a polymerization reactor 1 and a mixing tank 12. A level controller 4 and a touch screen display 2 are respectively installed at the top and bottom of one end of the polymerization reactor 1. A T-shaped sealing cover 5 is fitted onto the top of the polymerization reactor 1. An agitator 16 is installed on the top of the T-shaped sealing cover 5 and the top of the other end of the polymerization reactor 1. The agitator 16 includes a hollow agitator shaft 1611, located on top of the T-shaped sealing cover 5. The bottom of the hollow agitator shaft 1611 penetrates the T-shaped sealing cover 5 and extends to the polymerization reactor. Inside the mixing tank 1, a connecting sleeve 165 is movably sleeved on the top of the hollow stirring shaft 1611 via a bearing. The inner wall of the connecting sleeve 165 is connected to an inlet pipe 11. A centrifugal pump 14 is connected to the side of the inlet pipe 11 away from the connecting sleeve 165. The inlet end of the centrifugal pump 14 is connected to a deionized water tank 7 via a pipe. A weighing platform 15 is sleeved on the outside of the mixing tank 12. A metering pump 1 is connected to the bottom of the mixing tank 12. A regulator injection pipe 3 is connected to the bottom of the metering pump 1. The side of the regulator injection pipe 3 away from the metering pump 1 is connected to the inlet pipe 11.

[0023] As a technical optimization of this utility model, the bottom of the polymerization reactor 1 is connected to several support legs, and an external discharge pipe 13 is connected to the center of the bottom of the polymerization reactor 1. A solenoid valve is installed on the external discharge pipe 13, and the detection end of the liquid level controller 4 extends into the interior of the polymerization reactor 1. Through the cooperation of the external discharge pipe 13 and the solenoid valve, the liquid in the polymerization reactor 1 can be conveniently discharged.

[0024] As a technical optimization of this utility model, a waste discharge pipe 17 is connected to the bottom of the other end of the polymerization reactor 1. A solenoid valve 2 is installed on the waste discharge pipe 17. A solenoid valve 3 9 is installed on the top and bottom of the liquid inlet pipe 11 and directly above the connecting sleeve 165. Through the cooperation of the waste discharge pipe 17 and the solenoid valve 2, the cleaning liquid in the polymerization reactor 1 can be easily discharged.

[0025] As a technical optimization of this utility model, the external connection of the connecting sleeve 165 is provided with several L-shaped support frames 166. The side of the L-shaped support frame 166 away from the connecting sleeve 165 is connected to the T-shaped sealing cover 5. The L-shaped support frame 166 can support and position the connecting sleeve 165 to prevent the connecting sleeve 165 from rotating with the hollow stirring shaft 1611.

[0026] As a technical optimization of this utility model, the top of the mixing tank 12 is connected to an injection pipe 1, and several injection pipes 2 8 are connected to both sides of the injection pipe 1. The top of the injection pipe 2 8 and the top of the injection pipe 1 are both connected to a metering pump 2 6. The top of the metering pump 2 6 is connected to a storage tank 10. Solenoid valves 4 are installed on both the injection pipe 2 8 and the injection pipe 1. A regulator injection pipe 2 18 is connected to the outside of the injection pipe 2 8 and the injection pipe 1 and between the metering pump 2 6 and the solenoid valve 4. The side of the regulator injection pipe 2 18 away from the injection pipe 2 8 and the injection pipe 1 is connected to the inlet pipe 11. Solenoid valves 5 are installed on the side of the regulator injection pipe 2 18 near the inlet pipe 11 and the side of the regulator injection pipe 1 3 near the inlet pipe 11. The sides of the regulator injection pipe 2 18 and the regulator injection pipe 1 3 near the inlet pipe 11 are both inclined downwards.

[0027] As a technical optimization of this utility model, the stirring component 16 includes an arc-shaped support plate 161. One end of the arc-shaped support plate 161 is connected to the polymerization reactor 1. The top of the arc-shaped support plate 161 is connected to the stirring motor 162. The output end of the stirring motor 162 is fitted with a drive pulley 163. The top of the hollow stirring shaft 1611 is fitted with a driven pulley 167. The drive pulley 163 and the driven pulley 167 are fitted with a transmission belt 164. The arc-shaped support plate 161 facilitates the positioning and installation of the stirring motor 162.

[0028] As a technical optimization of this utility model, a number of stirring frames 1610 are connected to the outside of the hollow stirring shaft 1611 and inside the polymerization kettle 1. A number of heating rods 169 are connected to the inner wall of the stirring frame 1610. A temperature sensor 168 is installed on the stirring frame 1610.

[0029] In use, this invention utilizes the external control terminal of the filling device to activate metering pump 2 (6) and solenoid valve 4, allowing surfactants and modifiers from storage tank 10 to enter mixing tank 12. After mixing, metering pump 1 and solenoid valve 5 on modifier injection pipe 3 are activated to introduce the mixed additives into polymerization reactor 1. During this process, stirring motor 162 operates, driving hollow stirring shaft 1611 to rotate with the cooperation of drive pulley 163, driven pulley 167, and transmission belt 164. The mixing liquid in polymerization reactor 1 is stirred using stirring frame 1610 and heating rod 169. If heating to a certain temperature is required, heating rod 169 is activated. A temperature sensor 168 and a heating rod 169 are used to heat the mixture. The temperature sensor 168 detects the temperature of the heated mixture. Once the set temperature is reached, the heating rod 169 stops heating. After mixing, the solenoid valve one is opened, and the finished product is discharged through the external drain pipe 13. The metering pump two 6 allows for precise control of the amount of different additives added. By precisely controlling the amount of surfactant added, the surface tension between the gas and liquid phases is reduced, and the molecular arrangement between monomers is changed, thereby achieving the required viscosity range. Furthermore, by precisely adding the surfactant, when its concentration reaches a certain value, a large amount of ordered polymer is obtained. The surface tension of the solution is reduced, allowing surfactant molecules to enter the interior of the droplets, controlling the viscosity to within 110 KU.

[0030] Furthermore, when a specific additive needs to be added individually, the metering pump 6 below the corresponding storage tank 10 is turned on, the solenoid valve 4 on the injection pipe 1 and injection pipe 2 8 is turned off, and the solenoid valve 5 on the corresponding regulator injection pipe 2 18 and the solenoid valve 3 9 below the liquid inlet pipe 11 are turned on, so that the single additive is injected into the polymerization reactor 1.

[0031] When cleaning polymerization reactor 1, close solenoid valve 5, and open two solenoid valves 3 9, agitator motor 162 and centrifugal pump 14. Use centrifugal pump 14 to pump deionized water from deionized water tank 7 into polymerization reactor 1. Under the action of agitator motor 162, the rotating agitator frame 1610 drives the deionized water to stir inside polymerization reactor 1, cleaning the inside of polymerization reactor 1. After cleaning, open solenoid valve 2 to discharge waste liquid.

[0032] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A multi-parallel auxiliary agent filling device comprising a polymerization kettle (1) and a mixing tank (12), characterized in that: The top and bottom of one end of the polymerization kettle (1) are respectively provided with a liquid level controller (4) and a touch display screen (2), the top of the polymerization kettle (1) is provided with a T-shaped sealing cover (5), the top of the T-shaped sealing cover (5) and the top of the other end of the polymerization kettle (1) are jointly provided with an agitating component (16), the agitating component (16) comprises a hollow agitating shaft (1611), the hollow agitating shaft (1611) is located at the top of the T-shaped sealing cover (5), the bottom of the hollow agitating shaft (1611) penetrates through the T-shaped sealing cover (5) and extends into the polymerization kettle (1), the top of the hollow agitating shaft (1611) is movably provided with a connecting sleeve (165) through a bearing, the inner wall of the connecting sleeve (165) is connected with a liquid inlet pipe (11), the side, away from the connecting sleeve (165), of the liquid inlet pipe (11) is connected with a centrifugal pump (14), the liquid inlet end of the centrifugal pump (14) is connected with a deionized water tank (7) through a pipeline, the outside of a mixing tank (12) is provided with a weighing platform (15), the bottom of the mixing tank (12) is connected with a metering pump (1), the bottom of the metering pump (1) is connected with an adjusting agent injection pipe (3), and the side, away from the metering pump (1), of the adjusting agent injection pipe (3) is connected with the liquid inlet pipe (11).

2. A multiway parallel auxiliary agent filling device according to claim 1, characterized in that: The bottom of the polymerization kettle (1) is connected with a plurality of supporting legs, and the center of the bottom of the polymerization kettle (1) is connected with an external discharge pipe (13) provided with a solenoid valve (1), and the detection end of the liquid level controller (4) extends into the polymerization kettle (1).

3. A multiway parallel auxiliary filling device according to claim 1, characterized in that: The bottom of the other end of the polymerization kettle (1) is connected with a waste discharge pipe (17) provided with a solenoid valve (2), and the top and bottom of the liquid inlet pipe (11) and above the connecting sleeve (165) are provided with a solenoid valve (3) (9).

4. A multiway parallel auxiliary filling device according to claim 1, characterized in that: The outside of the connecting sleeve (165) is connected with a plurality of L-shaped supporting frames (166), and the side, away from the connecting sleeve (165), of the L-shaped supporting frame (166) is connected with the T-shaped sealing cover (5).

5. A multiway parallel auxiliary filling device according to claim 1, characterized in that: The top of the mixing tank (12) is connected with an injection pipe (1), the two sides of the injection pipe (1) are connected with a plurality of injection pipes (2) (8), the top of the injection pipe (2) (8) and the top of the injection pipe (1) are connected with a metering pump (2) (6), the top of the metering pump (2) (6) is connected with a storage tank (10), the injection pipe (2) (8) and the injection pipe (1) are provided with a solenoid valve (4), the outside of the injection pipe (2) (8) and the injection pipe (1) and between the metering pump (2) (6) and the solenoid valve (4) are connected with an adjusting agent injection pipe (2) (18), the side, away from the injection pipe (2) (8) and the injection pipe (1), of the adjusting agent injection pipe (2) (18) is connected with the liquid inlet pipe (11), and the side, close to the liquid inlet pipe (11), of the adjusting agent injection pipe (2) (18) and the side, close to the liquid inlet pipe (11), of the adjusting agent injection pipe (1) (3) are provided with a solenoid valve (5).

6. A multiway parallel auxiliary filling device according to claim 1, characterized in that: The stirring component (16) comprises an arc-shaped support plate (161), one end of the arc-shaped support plate (161) is connected with the polymerization kettle (1), the top of the arc-shaped support plate (161) is connected with a stirring motor (162), the output end of the stirring motor (162) is sleeved with a driving pulley (163), the top of the outer part of the hollow stirring shaft (1611) is sleeved with a driven pulley (167), and the outer parts of the driving pulley (163) and the driven pulley (167) are jointly sleeved with a transmission belt (164).

7. A multiway parallel auxiliary filling device according to claim 6, characterized in that: The outer part of the hollow stirring shaft (1611) and the inside of the polymerization kettle (1) are connected with a plurality of stirring frames (1610), the inner wall of the stirring frame (1610) is connected with a plurality of heating rods (169), and the stirring frame (1610) is provided with a temperature sensor (168).

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