System for recovering pentamethylene diamine in nylon wastewater

Abstract

The utility model discloses a nylon wastewater pentamethylene diamine recovery system, which comprises a filter vat, a plurality of coarse filter screens are arranged in the filter vat at equal intervals, the upper end of the filter vat is connected with a communicating pipe, the upper end of the communicating pipe is connected with a mixing vat, the upper end of the mixing vat is provided with stirring equipment, a delivery pump is arranged in the filter vat, and the delivery pump is connected with the coarse filter screens. One end of the conveying pump is connected with a backflow pipe, one end of the backflow pipe is connected to one side of the upper end of the mixing barrel, one side of the filtering barrel is connected with a filtering box, one side of the filtering box is connected with a filtering pipe, one side of the mixing barrel is connected with two first connecting pipes, and one end of each first connecting pipe is connected with a valve. According to the utility model, the pentamethylene diamine in the nylon wastewater can be fully filtered before purification processing, the filtering efficiency and speed can be improved, the purification processing quality of the pentamethylene diamine is greatly improved, the thoroughness of purification is ensured, and the practicability and rapidity are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of nylon wastewater treatment, in particular to a nylon wastewater pentamethylenediamine recovery system. Background Art

[0002] Nylon, also known as polyamide fiber (cotton), is the world's first synthetic fiber. Its outstanding weather resistance and low-temperature flexibility have made it a high-performance engineering plastic, now widely used in sporting goods, automobiles, machinery, and other fields. Rapid development in various fields has increased demand for nylon, but it has also increased the amount of nylon wastewater generated.

[0003] Nylon wastewater contains a lot of impurities, and the pentamethylenediamine inside needs to be recovered before discharge. However, the impurities need to be filtered in advance before pentamethylenediamine purification processing can be carried out. The current filtration method is simple and cannot fully and thoroughly purify pentamethylenediamine before purification processing, which reduces the quality of pentamethylenediamine purification processing and is not conducive to circular development. Therefore, we proposed a nylon wastewater pentamethylenediamine recovery system to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a nylon wastewater pentamethylenediamine recovery system.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A nylon wastewater pentamethylenediamine recovery system includes a filter barrel, wherein a plurality of coarse filter screens are arranged at equal intervals in the filter barrel, a connecting pipe is connected to the upper end of the filter barrel, the upper end of the connecting pipe is connected to a mixing barrel, the upper end of the mixing barrel is provided with a stirring device, a delivery pump is provided in the filter barrel, one end of the delivery pump is connected to a return pipe, one end of the return pipe is connected to one side of the upper end of the mixing barrel, one side of the filter barrel is connected to a filter box, one side of the filter box is connected to the filter pipe, one side of the mixing barrel is connected to two first connecting pipes, one end of the first connecting pipe is connected to a valve, one end of the two valves is connected to a fixed pipe, and one end of the fixed pipe is connected to a delivery pipe.

[0007] Preferably, the stirring device includes a driving motor fixed to the upper end of the mixing barrel, the end of the output shaft of the driving motor is connected to a stirring rod through a coupling, the lower end of the stirring rod extends to the bottom of the mixing barrel, and a plurality of connecting rods are provided at equal intervals around the stirring rod, and a stirring blade is fixed to one end of the connecting rod.

[0008] Preferably, a base is fixed to the lower end of the filter barrel.

[0009] Preferably, a plurality of fine filter holes are provided at equal intervals in the filter tube.

[0010] Preferably, a pressure gauge and a thermometer are provided on the side wall of the mixing barrel.

[0011] Preferably, one end of the mixing barrel is connected to three second connecting pipes, one end of the second connecting pipe is connected to a coil, and both ends of the coil are respectively connected to one side of two valves.

[0012] In the present invention, when the wastewater needs to be preliminarily treated, it is sent into a fixed pipe through a delivery pipe, and then sent into a mixing barrel for mixing. During mixing, the driving motor drives the stirring rod and the stirring blade to rotate through the rotation of the output shaft, thereby improving the mixing efficiency and allowing the internal impurities to be more fully diffused. After that, it is coarsely filtered through the coarse filter mesh in the filter barrel, and then finely filtered through the fine filter holes of the filter box and the filter tube before being released. At the same time, the delivery pump returns a portion of the coarsely filtered wastewater to the mixing barrel through the reflux pipe, thereby accelerating the mixing efficiency and increasing the speed of impurity diffusion.

[0013] The utility model can not only achieve full filtration of pentamethylenediamine in nylon wastewater before purification processing, but also improve the efficiency and speed of filtration, greatly improve the quality of pentamethylenediamine purification processing, ensure the thoroughness of purification, and enhance practicality and speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a structural diagram of the stirring equipment of the present utility model;

[0016] Figure 3 This is a structural diagram of the fine filter holes of the utility model;

[0017] Figure 4 This is a coil connection structure diagram of the utility model.

[0018] In the figure: 1 drive motor, 2 first connecting pipe, 3 valve, 4 delivery pipe, 5 fixed pipe, 6 filter pipe, 7 filter box, 8 filter barrel, 9 base, 10 connecting pipe, 11 reflux pipe, 12 mixing barrel, 13 coil, 14 second connecting pipe, 15 fine filter hole, 16 connecting rod, 17 stirring blade, 18 stirring rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Example 1

[0021] Reference Figure 1-3 , a nylon wastewater pentamethylenediamine recovery system includes a filter barrel 8, a base 9 is fixed to the lower end of the filter barrel 8 for stable support, a plurality of coarse filter screens are arranged at equal intervals in the filter barrel 8, the upper end of the filter barrel 8 is connected to a connecting pipe 10, the upper end of the connecting pipe 10 is connected to a mixing barrel 12, and a stirring device is provided at the upper end of the mixing barrel 12, the stirring device includes a driving motor 1 fixed to the upper end of the mixing barrel 12, the end of the output shaft of the driving motor 1 is connected to a stirring rod 18 through a coupling, the lower end of the stirring rod 18 extends to the bottom of the mixing barrel 12, a plurality of connecting rods 16 are arranged at equal intervals around the stirring rod 18, and a stirring blade 17 is fixed to one end of the connecting rod 16, which can fully break up the impurities in the wastewater in the mixing barrel 12, make it more sufficient during filtration, avoid blockage and achieve rapid filtration;

[0022] A delivery pump is provided in the filter barrel 8, one end of which is connected to a return pipe 11, one end of which is connected to the upper end of the mixing barrel 12, one side of the filter barrel 8 is connected to a filter box 7, one side of the filter box 7 is connected to a filter tube 6, and a plurality of fine filter holes 15 are provided at equal intervals in the filter tube 6, so that fine filtration is performed after coarse filtration to improve filtration accuracy;

[0023] Two first connecting pipes 2 are connected to one side of the mixing barrel 12, one end of the first connecting pipe 2 is connected to a valve 3, one end of the two valves 3 is connected to a fixed pipe 5, and one end of the fixed pipe 5 is connected to a delivery pipe 4. A pressure gauge and a thermometer are provided on the side wall of the mixing barrel 12 to fully monitor the internal status.

[0024] Example 2

[0025] Reference Figure 4 The difference between Example 2 and Example 1 is that Example 2 further includes: one end of the mixing barrel 12 is connected to three second connecting pipes 14, one end of the second connecting pipe 14 is connected to a coil 13, and both ends of the coil 13 are respectively connected to one side of the two valves 3. Through the arrangement of the coil 13 and the three second connecting pipes 14, the wastewater can be more fully fused and diffused during transportation, thereby improving the transportation efficiency and speed while ensuring sufficient filtration;

[0026] A base 9 is fixed to the lower end of the filter barrel 8 for stable support. A plurality of coarse filter screens are arranged at equal intervals in the filter barrel 8. A connecting pipe 10 is connected to the upper end of the filter barrel 8. The upper end of the connecting pipe 10 is connected to a mixing barrel 12. A stirring device is provided at the upper end of the mixing barrel 12. The stirring device comprises a driving motor 1 fixed to the upper end of the mixing barrel 12. The end of the output shaft of the driving motor 1 is connected to a stirring rod 18 through a coupling. The lower end of the stirring rod 18 extends to the bottom of the mixing barrel 12. A plurality of connecting rods 16 are arranged at equal intervals around the stirring rod 18. A stirring blade 17 is fixed to one end of the connecting rod 16, which can fully break up the impurities in the wastewater in the mixing barrel 12, making it more sufficient during filtration, avoiding blockage and achieving rapid filtration.

[0027] A delivery pump is provided in the filter barrel 8, one end of which is connected to a return pipe 11, one end of which is connected to the upper end of the mixing barrel 12, one side of the filter barrel 8 is connected to a filter box 7, one side of the filter box 7 is connected to a filter tube 6, and a plurality of fine filter holes 15 are provided at equal intervals in the filter tube 6, so that fine filtration is performed after coarse filtration to improve filtration accuracy;

[0028] One end of the two valves 3 is connected to a fixed pipe 5, and one end of the fixed pipe 5 is connected to a delivery pipe 4. A pressure gauge and a thermometer are provided on the side wall of the mixing barrel 12 to fully monitor the internal state.

[0029] In the present invention, when the wastewater needs to be preliminarily treated, it is sent into the fixed pipe 5 through the delivery pipe 4, and then sent into the mixing barrel 12 for mixing. During mixing, the driving motor 1 drives the stirring rod 18 and the stirring blade 17 to rotate through the rotation of the output shaft, thereby improving the mixing efficiency and allowing the internal impurities to be more fully diffused. After that, it is coarsely filtered through the coarse filter mesh in the filter barrel 8, and then finely filtered through the fine filter holes 15 of the filter box 7 and the filter tube 6 before being released. At the same time, the delivery pump returns a portion of the coarsely filtered wastewater to the mixing barrel 12 through the reflux pipe 11, thereby accelerating the mixing efficiency and increasing the speed of impurity diffusion.

[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A nylon wastewater pentamethylenediamine recovery system, comprising a filter barrel (8), characterized in that: A plurality of coarse filter screens are arranged at equal intervals in the filter barrel (8); the upper end of the filter barrel (8) is connected to a connecting pipe (10); the upper end of the connecting pipe (10) is connected to a mixing barrel (12); the upper end of the mixing barrel (12) is provided with a stirring device; a delivery pump is provided in the filter barrel (8); one end of the delivery pump is connected to a return pipe (11); one end of the return pipe (11) is connected to one side of the upper end of the mixing barrel (12); one side of the filter barrel (8) is connected to a filter box (7); one side of the filter box (7) is connected to a filter pipe (6); one side of the mixing barrel (12) is connected to two first connecting pipes (2); one end of the first connecting pipe (2) is connected to a valve (3); one end of the two valves (3) is connected to a fixed pipe (5); one end of the fixed pipe (5) is connected to a delivery pipe (4).

2. The nylon wastewater pentamethylenediamine recovery system according to claim 1, characterized in that: The stirring device comprises a driving motor (1) fixed to the upper end of a mixing barrel (12); the end of the output shaft of the driving motor (1) is connected to a stirring rod (18) via a coupling; the lower end of the stirring rod (18) extends to the bottom of the mixing barrel (12); a plurality of connecting rods (16) are provided at equal intervals around the stirring rod (18); a stirring blade (17) is fixed to one end of the connecting rod (16).

3. The nylon wastewater pentamethylenediamine recovery system according to claim 1, characterized in that: A base (9) is fixed to the lower end of the filter barrel (8).

4. The nylon wastewater pentamethylenediamine recovery system according to claim 1, characterized in that: A plurality of fine filter holes (15) are provided at equal intervals in the filter tube (6).

5. The nylon wastewater pentamethylenediamine recovery system according to claim 1, characterized in that: A pressure gauge and a thermometer are provided on the side wall of the mixing barrel (12).

6. The nylon wastewater pentamethylenediamine recovery system according to claim 1, characterized in that: One end of the mixing barrel (12) is connected to three second connecting pipes (14), one end of the second connecting pipe (14) is connected to a coil (13), and both ends of the coil (13) are respectively connected to one side of two valves (3).

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