POD stock solution and color paste mixing device

Abstract

The utility model relates to a POD stock solution and color paste mixing device which comprises a controller, a fluid conveying main flow path, a POD stock solution kettle and a color paste kettle, the POD stock solution kettle is connected with a first air compressor through a first air flow path, a first valve is arranged on the first air flow path, the color paste kettle is connected with a second air compressor through a second air flow path, and a second valve is arranged on the second air compressor. A first valve is arranged on the first air flow path, a second valve is arranged on the second air flow path, a conveying pump, a mixing pump and an outlet pressure sensor are arranged on the fluid conveying main flow path, the POD stock solution kettle is connected with the fluid conveying main flow path through a POD stock solution flow path, a third valve is arranged on the POD stock solution flow path, and the color paste kettle is connected with the fluid conveying main flow path through a color paste flow path. A fourth valve and a metering pump are arranged on the color paste flow path, a backflow loop is communicated with an inlet and an outlet of the mixing pump, and a backflow valve is arranged on the backflow loop, so that the mixing uniformity is greatly improved, and the color fastness of subsequently manufactured POD fibers is greatly improved.

Description

Technical field

[0001] The utility model relates to the field of POD fibers, in particular to a mixing device for POD stock solution and color paste. [Background Technology]

[0002] Polyaryloxadiazole (POD), short for aromatic poly-1,3,4-oxadiazole, is a polymer material with excellent dimensional stability and high-temperature resistance. Polyaryloxadiazole fiber, also known as POD fiber or Baodron, refers to a specialty fiber with a backbone containing benzene and oxadiazole rings. Polyaryloxadiazole fiber offers advantages such as high-temperature resistance, flame retardancy, wear resistance, and corrosion resistance. It is widely used in papermaking, environmental dust removal, protective products, and military applications.

[0003] In the prior art, POD fiber dyeing is generally performed by back-end dyeing, in which the manufactured POD fiber is immersed in a dye solution for dyeing. In daily work, we have found that the color fastness of POD fiber after back-end dyeing is poor. Therefore, we have developed front-end dyeing, in which the color paste and POD stock solution are fully mixed before making POD fiber. After the front-end dyeing treatment, the color fastness of POD fiber is greatly improved. The present utility model aims to provide such a mixing device for POD stock solution and color paste for front-end dyeing of POD fiber. [Utility Model Content]

[0004] In order to solve the above problems, the purpose of the present invention is to provide a device for mixing POD stock solution and color paste, which can improve the color fastness of POD fiber.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a mixing device of POD raw liquid and color paste, comprising: a controller, a main fluid delivery flow path, a POD raw liquid kettle and a color paste kettle, the POD raw liquid kettle is connected to a first air compressor via a first air flow path, a first valve is provided on the first air flow path, the color paste kettle is connected to a second air compressor via a second air flow path, a second valve is provided on the second air flow path, a delivery pump, a mixing pump and an outlet pressure sensor are provided on the main fluid delivery flow path, the POD raw liquid kettle is connected to the fluid via the POD raw liquid flow path The color paste kettle is connected to the main fluid conveying flow path, a third valve is provided on the POD raw liquid flow path, the color paste kettle is connected to the main fluid conveying flow path through the color paste flow path, a fourth valve and a metering pump are provided on the color paste flow path, the inlet and outlet of the mixing pump are connected with a reflux circuit, a reflux valve is provided on the reflux circuit, the outlet pressure sensor is arranged at the outlet of the main fluid conveying flow path, and the controller is respectively connected to the first valve, the second valve, the third valve, the fourth valve, the conveying pump, the metering pump, the mixing pump, the outlet pressure sensor, the reflux valve, the first air compressor and the second air compressor.

[0006] Preferably, the device for mixing POD stock solution and color paste in the present invention is further configured such that: the first valve is an electromagnetic ball valve.

[0007] Preferably, the device for mixing POD concentrate and color paste in the present invention is further configured such that: the second valve is an electromagnetic ball valve.

[0008] Preferably, the device for mixing POD stock solution and color paste in the present invention is further configured such that: the third valve is an electromagnetic ball valve.

[0009] Preferably, the device for mixing POD concentrate and color paste in the present invention is further configured such that: the fourth valve is an electromagnetic ball valve.

[0010] Preferably, the device for mixing POD stock solution and color paste in the present invention is further configured such that: the reflux valve is an electromagnetic reflux valve.

[0011] Preferably, the device for mixing POD stock solution and color paste in the present invention is further configured as follows: the controller is a PLC controller.

[0012] Compared with the prior art, the present invention has the following beneficial effects: the mixing device for the POD stock solution and the color paste in the present invention has a simple structure and is easy to install. By adopting the mixing device in the present invention to mix the POD stock solution and the color paste, the uniformity of the mixing can be greatly improved, thereby greatly improving the color fastness of the subsequently manufactured POD fiber.

Brief Description of the Drawings

[0013] Figure 1 This is a schematic structural diagram of a device for mixing POD stock solution and color paste in the present invention.

[0014] Figure 1 In: 1. Fluid delivery main flow path, 2. POD stock solution kettle, 20. First air flow path, 21. First air compressor, 22. First valve, 23. POD stock solution flow path, 24. Third valve, 3. Color paste kettle, 30. Second air flow path, 31. Second air compressor, 32. Second valve, 33. Color paste flow path, 34. Fourth valve, 35. Metering pump, 4. Delivery pump, 5. Mixing pump, 50. Return circuit, 51. Return valve, 6. Outlet pressure sensor. [Specific implementation method]

[0015] The following is a further detailed description of a device for mixing POD stock solution and color paste according to the present invention through specific embodiments.

[0016] See also Figure 1The device, shown in FIG. 1 , comprises a POD stock solution and colorant mixing device, comprising: a controller (not shown), a main fluid delivery path 1, a POD stock solution kettle 2, and a colorant kettle 3. The POD stock solution kettle 2 is connected to a first air compressor 21 via a first air flow path 20. The first air flow path 20 is provided with a first valve 22, which in this embodiment is a solenoid-operated ball valve. The colorant kettle 3 is connected to a second air compressor 31 via a second air flow path 30. The second air flow path 30 is provided with a second valve 32, which in this embodiment is a solenoid-operated ball valve. The main fluid delivery path 1 is provided with a delivery pump 4, a mixing pump 5, and an outlet pressure sensor 6. The POD stock solution kettle 2 is connected to the main fluid delivery path 1 via a POD stock solution path 23. The POD stock solution path 23 is provided with a third valve 24, which in this embodiment is a solenoid-operated ball valve. The color paste kettle 3 is connected to the main fluid delivery path 1 via a color paste flow path 33. The color paste flow path 33 is equipped with a fourth valve 34 and a metering pump 35. In this embodiment, the fourth valve 34 is a solenoid ball valve. The inlet and outlet of the mixing pump 5 are connected by a return circuit 50. This return circuit 50 is equipped with a return valve 51. In this embodiment, the return valve 51 is a solenoid return valve. The outlet pressure sensor 6 is located at the outlet of the main fluid delivery path. The controller is connected to the first valve 22, the second valve 32, the third valve 24, the fourth valve 34, the delivery pump 4, the metering pump 35, the mixing pump 5, the outlet pressure sensor 6, the return valve 51, the first air compressor 21, and the second air compressor 31. The controller may include a microprocessor (MCU), which may include a central processing unit (CPU), a read-only memory (ROM), a random access memory (RAM), a timing module, an A / D converter (A / D converter), and multiple input / output ports. Of course, the controller may also use other forms of integrated circuits, such as an application-specific integrated circuit (ASIC) or a field programmable gate array (FPGA). In this embodiment, the controller is a PLC controller.

[0017] The working principle of the mixing device of POD raw liquid and color paste in the present invention is as follows: the controller controls the first valve 22 on the first air flow path 20 to open, and then the compressed air is passed into the POD raw liquid kettle 2, and then the controller controls the third valve 24 on the POD raw liquid flow path 23 to open, and the POD raw liquid is transported to the delivery pump 4, and is pressurized and transported by the delivery pump 4. Similarly, the controller controls the second valve 32 on the second air flow path 30 to open, and then the compressed air is passed into the color paste kettle 3, and then the controller controls the fourth valve 34 on the color paste flow path 33 to open and the metering pump 35 to work. After passing through the metering pump 35, the color paste enters the fluid delivery main flow path 1 and merges with the POD raw liquid, and then is input to the mixing pump 5 behind. The mixing pump 5 mixes the POD stock solution and the color paste. The speed of the mixing pump 5 is controlled by the outlet pressure sensor 6. The pressure value detected by the outlet pressure sensor 6 is transmitted to the controller and compared with the set value. When the pressure is higher than the set value, the controller controls the return valve 51 to open wider and controls the speed of the mixing pump 5 to be higher. When the pressure is lower than the set value, the controller controls the return valve 51 to open smaller and controls the speed of the mixing pump 5 to be lower. The advantages of this design are: 1. The speed of the mixing pump 5 can be automatically adjusted according to the pressure value at the outlet of the fluid conveying main flow path 1; 2. The fluid in the fluid conveying main flow path 1 can always be kept within an appropriate pressure range, which can ensure the accuracy of the metering pump. In addition, the reason why compressed air is added to convey the POD stock solution and color paste in the present invention is mainly due to the fact that the viscosity of the two materials is relatively high. If compressed air is not added for conveying, the material flow will be too slow and the supply will be insufficient.

[0018] To sum up, the mixing device for the POD stock solution and the color paste in the present invention has a simple structure and is easy to install. By adopting the mixing device in the present invention to mix the POD stock solution and the color paste, the uniformity of the mixing can be greatly improved, thereby greatly improving the color fastness of the subsequently manufactured POD fiber.

[0019] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some embodiments of its application, and are not intended to limit the present invention. It should be noted that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A device for mixing POD stock solution and color paste, characterized by: include: A controller, a total fluid delivery flow path, a POD stock liquid kettle and a color paste kettle, the POD stock liquid kettle is connected to the first air compressor through a first air flow path, a first valve is provided on the first air flow path, the color paste kettle is connected to the second air compressor through a second air flow path, a second valve is provided on the second air flow path, a delivery pump, a mixing pump and an outlet pressure sensor are provided on the total fluid delivery flow path, the POD stock liquid kettle is connected to the total fluid delivery flow path through the POD stock liquid flow path, a third valve is provided on the POD stock liquid flow path, the color paste kettle is connected to the total fluid delivery flow path through the color paste flow path, a fourth valve and a metering pump are provided on the color paste flow path, the inlet and outlet of the mixing pump are connected to a reflux circuit, a reflux valve is provided on the reflux circuit, the outlet pressure sensor is arranged at the outlet of the total fluid delivery flow path, and the controller is respectively connected to the first valve, the second valve, the third valve, the fourth valve, the delivery pump, the metering pump, the mixing pump, the outlet pressure sensor, the reflux valve, the first air compressor and the second air compressor.

2. The device for mixing POD stock solution and color paste according to claim 1, characterized in that: The first valve is an electromagnetic ball valve.

3. The device for mixing POD stock solution and color paste according to claim 1, characterized in that: The second valve is a solenoid ball valve.

4. The device for mixing POD stock solution and color paste according to claim 1, characterized in that: The third valve is an electromagnetic ball valve.

5. The device for mixing POD stock solution and color paste according to claim 1, characterized in that: The fourth valve is an electromagnetic ball valve.

6. The device for mixing POD stock solution and color paste according to claim 1, characterized in that: The reflux valve is an electromagnetic reflux valve.

7. The device for mixing POD stock solution and color paste according to claim 1, characterized in that: The controller is a PLC controller.

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