Automatic potassium hydroxide feeding device for butyronitrile glove production ingredients

Abstract

The utility model relates to the technical field of butyronitrile latex production equipment, in particular to an automatic potassium hydroxide feeding device for butyronitrile glove production ingredients. A solution preparation assembly; the feeding assembly comprises a transfer tank, the transfer tank is located above the glue preparation tank and connected with the solution preparation assembly, a liquid discharge pipe is arranged at the bottom of the transfer tank, the liquid discharge pipe extends into the glue preparation tank and is connected with a spraying assembly, and a flow control assembly is arranged in the middle of the liquid discharge pipe. According to the utility model, solution preparation and solution spraying are separated, so that uninterrupted filling of potassium hydroxide can be realized, and the production efficiency is improved; by means of the pressure of liquid in the transfer tank, the solution is evenly and slowly injected through the spraying assembly, the liquid level is detected through the liquid level detection assembly, automatic feeding is achieved through the feeding pump, and it is guaranteed that the pressure is stabilized within a certain range; the pH detection assembly is used for detecting the pH value of latex, the control assembly is matched to control the adding speed and the filling amount of the solution, and automatic control over filling is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of nitrile latex production equipment, specifically an automatic potassium hydroxide feeding device for nitrile glove production. Background Technology

[0002] In the production of nitrile gloves, potassium hydroxide (KOH) is a commonly used chemical raw material, mainly used to adjust the pH value of the latex to maintain the stability of the rubber compound, prevent coagulation, and improve the vulcanization effect of the gloves. When adding potassium hydroxide, it needs to be added at a low concentration, slowly, and evenly; otherwise, the nitrile latex will sludge, coagulate, agglomerate, and deteriorate, becoming unusable.

[0003] In existing technologies, potassium hydroxide powder is usually added manually or semi-automatically based on the quality of the nitrile latex. The addition method is generally to dissolve potassium hydroxide powder into a solution and then slowly introduce it into the nitrile latex. During the addition, the latex needs to be stirred continuously.

[0004] However, pouring or direct injection can lead to an excessively high instantaneous concentration at the contact point, requiring a longer stirring time to achieve uniform dispersion. There are also technical solutions that use spraying for injection, but these generally employ timed or quantitative control, resulting in a constant injection volume per batch. The injection speed decreases as the liquid level drops, with a faster initial speed followed by a slower later speed. This makes it inconvenient to adjust the injection volume in real time based on the pH value of the nitrile latex. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides an automatic potassium hydroxide feeding device for the production of nitrile gloves.

[0006] The technical solution of this utility model is:

[0007] An automatic potassium hydroxide feeding device for the production of nitrile gloves includes:

[0008] A mixing tank for mixing nitrile rubber latex and potassium hydroxide;

[0009] A solution preparation assembly for preparing potassium hydroxide solution;

[0010] The feeding assembly includes a transfer tank located above the glue mixing tank and connected to the solution preparation assembly for temporarily storing potassium hydroxide solution. The bottom of the transfer tank is provided with a drain pipe that extends into the glue mixing tank and is connected to a spray assembly. A flow control assembly is provided in the middle of the drain pipe.

[0011] Preferably, the mixing tank includes a tank body, a first stirring assembly is provided inside the tank body, and a pH detection assembly is provided at the bottom of the tank body, the pH detection assembly being used to detect the pH value of the mixture.

[0012] Preferably, the solution preparation component includes a preparation tank, which is a hollow tank, and a heating component is provided in the interlayer of the preparation tank.

[0013] Preferably, the bottom of the preparation tank is provided with a concentration detection component and a first control valve, wherein the concentration detection component is used to detect the concentration of the solution.

[0014] Preferably, the transfer tank is connected to a feeding pump via a pipeline, and the feed inlet of the feeding pump is connected to a first control valve via a pipeline.

[0015] Preferably, a liquid level detection component is provided at the center of the top of the transfer tank, and a pressure stabilizing pipe is provided on the top of the transfer tank and on one side of the liquid level detection component. The pressure stabilizing pipe is used to connect the transfer tank to the outside.

[0016] Preferably, the control component includes a flow detection component and a second control valve. The flow detection component is used to detect the liquid flow rate in the drain pipe, and the second control valve is a proportional valve used to control the liquid flow rate in the drain pipe.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention separates solution preparation and spraying by setting up a preparation tank and a transfer tank, enabling uninterrupted addition of potassium hydroxide and improving production efficiency. Utilizing the pressure of the liquid in the transfer tank, the spray assembly achieves uniform and slow addition of the solution. A liquid level detection assembly monitors the liquid level, and a feeding pump automatically adds the solution, ensuring the pressure remains stable within a certain range. A pH detection assembly detects the pH value of the latex, and a control assembly controls the solution addition rate and volume, achieving automatic control. Attached Figure Description

[0019] Figure 1 This is a first schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a second schematic diagram of the overall structure of this utility model;

[0021] Figure 3 This is a schematic cross-sectional view of the overall structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the spray assembly structure in this utility model.

[0023] The meanings of the labels in the diagram are as follows:

[0024] 1. Mixing tank; 11. Tank body; 12. First stirring assembly; 13. pH detection assembly;

[0025] 2. Solution preparation assembly; 21. Preparation tank; 22. Second stirring assembly; 23. Concentration detection assembly; 24. Heating assembly; 25. Temperature detection assembly; 26. First control valve;

[0026] 3. Feeding assembly; 31. Transfer tank; 32. Feeding pump; 33. Liquid level detection assembly; 34. Pressure stabilizing pipe; 35. Drain pipe; 36. Spray pipe; 37. Drip nozzle; 38. Flow detection assembly; 39. Second control valve. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1:

[0029] Please see Figure 1-4 The present invention will describe the above technical solution in detail through the following embodiments:

[0030] An automatic potassium hydroxide feeding device for the production of nitrile gloves includes:

[0031] Mixing tank 1 is used for mixing nitrile rubber latex and potassium hydroxide.

[0032] The mixing tank 1 includes a tank body 11, a first stirring component 12 is provided inside the tank body 11, and a pH detection component 13 is provided at the bottom of the tank body 11. The pH detection component 13 is used to detect the pH value of the mixture.

[0033] The feed inlet of tank 11 is located on the top side, and the discharge outlet of tank 11 is located at the center of the bottom.

[0034] The first stirring component 12 may be a stirring roller driven by a motor.

[0035] Nitrile latex is injected through the inlet, stirred by the first stirring component 12, and finally discharged from the bottom outlet.

[0036] pH detection component 13 uses a known pH sensor that can detect the pH value of nitrile latex in real time.

[0037] When the pH detection component 13 detects that the pH value has reached the set value, the first stirring component 12 stops working.

[0038] Solution preparation component 2 is used for preparing potassium hydroxide solution.

[0039] The solution preparation component 2 includes a preparation tank 21, which is a hollow tank, and a heating component 24 is provided in the interlayer of the preparation tank 21.

[0040] The feed inlet of the preparation tank 21 is located at the top, and the discharge outlet of the preparation tank 21 is located at the bottom. Potassium hydroxide solid and water are fed in from the feed inlet at the top of the preparation tank 21.

[0041] The heating component 24 can be a spiral pipe through which hot water is circulated. Heating the preparation tank 21 with the heating component 24 can improve the efficiency of solution preparation.

[0042] The preparation tank 21 is provided with a second stirring component 22 in the middle, which can be a stirring roller driven by a motor.

[0043] The second stirring component 22 dissolves potassium hydroxide solid by stirring.

[0044] The bottom of the preparation tank 21 is threaded with a concentration detection component 23 and a first control valve 26. The concentration detection component 23 is used to detect the concentration of the solution.

[0045] The concentration detection component 23 uses a pH sensor or other potassium hydroxide concentration detection equipment to detect the concentration of potassium hydroxide solution.

[0046] The first control valve 26 can be a solenoid valve, used to control the opening and closing of the discharge port.

[0047] A temperature detection component 25 is also installed at the bottom of the preparation tank 21. The temperature detection component 25 is used to detect the temperature of the solution, so as to facilitate the adjustment of the temperature of the heating component 24.

[0048] Feeding component 3 includes a transfer tank 31, which is located above the glue mixing tank 1 and connected to the solution preparation component 2. It is used to temporarily store potassium hydroxide solution. The bottom of the transfer tank 31 is provided with a drain pipe 35, which extends into the glue mixing tank 1 and is connected to a spray component. A flow control component is provided in the middle of the drain pipe 35.

[0049] The transfer tank 31 is fixedly installed on the top of the tank body 11 by a support structure such as square steel or steel pipe.

[0050] The spray assembly includes spray pipes 36, which are arranged horizontally, and a number of nozzles 37 are evenly provided on the bottom surface of the spray pipes 36.

[0051] The solution in the transfer tank 31 enters the drain pipe 35 by its own gravity, then enters the spray pipe 36 from the drain pipe 35, and finally drips out from the drip nozzle 37.

[0052] Potassium hydroxide is added by dripping to achieve uniform dripping rate.

[0053] The transfer tank 31 is connected to a feeding pump 32 via a pipeline, and the feed inlet of the feeding pump 32 is connected to the first control valve 26 via a pipeline.

[0054] The feed pump 32 is used to pump the solution prepared in the preparation tank 21 into the transfer tank 31.

[0055] A liquid level detection component 33 is provided at the center of the top of the transfer tank 31. A pressure stabilizing pipe 34 is provided on the top of the transfer tank 31 and on one side of the liquid level detection component 33. The pressure stabilizing pipe 34 is used to connect the transfer tank 31 to the outside.

[0056] The liquid level detection component 33 can be an ultrasonic liquid level sensor or a laser liquid level sensor.

[0057] When the liquid level detection component 33 detects that the liquid level in the transfer tank 31 is lower than the threshold, it controls the feeding pump 32 to operate, replenishing the solution in the transfer tank 31. When the liquid level reaches the predetermined height, the feeding pump 32 stops operating. This ensures that the liquid pressure in the transfer tank 31 is maintained within a certain range.

[0058] The pressure stabilizing pipe 34 is connected to the outside, which can ensure that air enters the transfer tank 31 and ensure stable liquid flow.

[0059] The control components include a flow detection component 38 and a second control valve 39. The flow detection component 38 is used to detect the liquid flow rate in the drain pipe 35, and the second control valve 39 is a proportional valve used to control the liquid flow rate in the drain pipe 35.

[0060] The second control valve 39 can be a proportional valve, and the flow detection component 38 can be an electromagnetic flow meter.

[0061] The flow rate in the drain pipe 35 is detected by the flow detection component 38, and then the flow rate in the drain pipe 35 is controlled by the second control valve 39 to ensure that the amount of solution injected into the tank 11 per unit time is constant.

[0062] In this embodiment, when the operator uses this device, he controls the first control valve 26 to prepare a potassium hydroxide solution using the solution preparation component 2.

[0063] After configuration, the first control valve 26 is opened, and the feed pump 32 is used to pump the solution into the transfer tank 31.

[0064] When the second control valve 39 is opened, the solution in the transfer tank 31 enters the drain pipe 35 by its own gravity, then enters the spray pipe 36 from the drain pipe 35, and finally drips out from the drip nozzle 37.

[0065] The first stirring component 12 is controlled to stir the mixture of nitrile latex and potassium hydroxide. During stirring, the pH value of the mixture is detected in real time using the pH detection component 13.

[0066] Once the pH value reaches the set value, the second control valve 39 is closed.

[0067] During the filling process, the flow detection component 38 is used to detect the liquid flow rate in the drain pipe 35, and the second control valve 39 is controlled to work to adjust the flow rate in the drain pipe 35 to maintain an appropriate level.

[0068] The liquid level detection component 33 detects the liquid level in the transfer tank 31. When the liquid level in the transfer tank 31 is lower than a threshold, the feed pump 32 is activated to replenish the solution in the transfer tank 31. When the liquid level reaches a predetermined height, the feed pump 32 stops operating. This ensures that the liquid pressure in the transfer tank 31 is maintained within a certain range.

[0069] By controlling the first control valve 26 and the second control valve 39 to close, a potassium hydroxide solution is prepared using the solution preparation component 2.

[0070] After configuration, the first control valve 26 is opened and the second control valve 39 is closed, and the feed pump 32 is used to pump the solution into the transfer tank 31.

[0071] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for automatic feeding of potassium hydroxide for production of nitrile gloves, characterized in that, include: A mixing tank (1) is used for mixing nitrile latex and potassium hydroxide; Solution preparation component (2), the solution preparation component (2) is used for preparing potassium hydroxide solution; Feeding assembly (3), the feeding assembly (3) includes a transfer tank (31), the transfer tank (31) is located above the glue mixing tank (1) and connected to the solution preparation assembly (2), and is used to temporarily store potassium hydroxide solution. The bottom of the transfer tank (31) is provided with a drain pipe (35), the drain pipe (35) extends into the glue mixing tank (1) and is connected to a spray assembly, and the middle of the drain pipe (35) is provided with a flow control assembly.

2. The automatic potassium hydroxide feeding device for nitrile glove production ingredients according to claim 1, characterized in that: The mixing tank (1) includes a tank body (11), a first stirring assembly (12) is provided inside the tank body (11), and a pH detection assembly (13) is provided at the bottom of the tank body (11). The pH detection assembly (13) is used to detect the pH value of the mixture.

3. The automatic potassium hydroxide feeding device for nitrile glove production ingredients as claimed in claim 1, characterized in that: The solution preparation component (2) includes a preparation tank (21), which is a hollow tank, and a heating component (24) is provided in the interlayer of the preparation tank (21).

4. The automatic potassium hydroxide feeding device for nitrile glove production ingredients as claimed in claim 3, characterized in that: The bottom of the preparation tank (21) is provided with a concentration detection component (23) and a first control valve (26), and the concentration detection component (23) is used to detect the concentration of the solution.

5. The automatic potassium hydroxide feeding device for nitrile glove production ingredients as claimed in claim 4, characterized in that: The transfer tank (31) is connected to a feeding pump (32) via a pipeline, and the feed inlet of the feeding pump (32) is connected to the first control valve (26) via a pipeline.

6. The automatic potassium hydroxide feeding device for nitrile glove production ingredients as claimed in claim 1, wherein: The transfer tank (31) has a liquid level detection component (33) at the center of its top. A pressure stabilizing pipe (34) is provided on the top of the transfer tank (31) and on one side of the liquid level detection component (33). The pressure stabilizing pipe (34) is used to connect the transfer tank (31) to the outside.

7. The automatic potassium hydroxide feeding device for nitrile glove production ingredients as claimed in claim 1, wherein: The control component includes a flow detection component (38) and a second control valve (39). The flow detection component (38) is used to detect the liquid flow rate in the drain pipe (35), and the second control valve (39) is a proportional valve used to control the liquid flow rate in the drain pipe (35).

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