Recycled polyamide 6 feeding system

Abstract

The utility model provides a recycled polyamide 6 feeding system. The recycled polyamide 6 feeding system comprises a recycled caprolactam storage tank, a water pump mechanism, a filter, a controller and a caprolactam metering mechanism, the recovered caprolactam storage tank is connected to the water pump mechanism; the water pump mechanism is connected to the filter; the filter is connected to the caprolactam metering mechanism; the caprolactam metering mechanism comprises at least one caprolactam metering unit, and each caprolactam metering unit comprises a first valve, a first water level sensor and a caprolactam metering tank; the filter is connected to the caprolactam metering tank through the first valve, the first water level sensor is arranged in the caprolactam metering tank, and the controller is electrically connected with the first water level sensor and the first valve, so that equipment and pipes can be effectively reduced, and the investment cost is greatly saved.

Description

[Technical Field]

[0001] This utility model relates to a system for feeding recycled polyamide 6. [Background Technology]

[0002] In the preparation of recycled polyamide chips, the raw material, recycled caprolactam, needs to be pumped from a storage tank into metering tanks on each production line via pumps and precision filters, and then delivered to the appropriate production line according to usage. Traditional process designs require a large amount of equipment and piping, and occupy a significant area, which is inconvenient for factory equipment layout. During commissioning, the increased number of devices also leads to higher energy consumption, resulting in higher investment costs, higher operating energy consumption, and increased maintenance time. [Utility Model Content]

[0003] The technical problem to be solved by this utility model is to provide a recycling polyamide 6 feeding system, which can effectively reduce equipment and pipe materials and greatly save investment costs.

[0004] This utility model is implemented as follows: a polyamide 6 recycling feeding system, including a caprolactam recycling storage tank, a water pump mechanism, a filter, a controller, and a caprolactam metering mechanism;

[0005] The caprolactam recycling tank is connected to a water pump mechanism; the water pump mechanism is connected to the filter; the filter is connected to the caprolactam metering mechanism.

[0006] The caprolactam metering mechanism includes at least one caprolactam metering unit, and each caprolactam metering unit includes a first valve, a first water level sensor, and a caprolactam metering tank; the filter is connected to the caprolactam metering tank through the first valve, the first water level sensor is located in the caprolactam metering tank, and the controller is electrically connected to the first water level sensor and the first valve.

[0007] Furthermore, it also includes a sealed container, which is provided with an exhaust port, an air inlet, a water inlet, and a wastewater outlet; the air inlet is connected to a caprolactam recovery storage tank, the water inlet is used for water intake, and the wastewater outlet is used for wastewater discharge.

[0008] Furthermore, the water pump mechanism includes a first water pump and a second water pump, wherein the first water pump is connected to a caprolactam recovery tank and a filter, and the second water pump is connected to a caprolactam recovery tank and a filter.

[0009] Furthermore, it also includes a second valve and a second water level sensor, and the controller is electrically connected to the second valve and the second water level sensor respectively; the caprolactam recovery storage tank is provided with a caprolactam inlet pipe, the second valve is located on the caprolactam inlet pipe, and the second water level sensor is located inside the caprolactam recovery storage tank.

[0010] Furthermore, it also includes a first flow meter, which is installed on the caprolactam inlet pipe and located before the second valve.

[0011] Furthermore, the caprolactam metering unit also includes a second flow meter, which is located between the filter and the first valve.

[0012] The advantages of this utility model are: it can effectively reduce equipment and pipe materials, greatly saving investment costs; due to the reduction of electrical equipment, power consumption is reduced after production and operation, while saving maintenance time. [Attached Image Description]

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of a polyamide 6 recycling feeding system according to this utility model.

Detailed Implementation Methods

[0015] This utility model provides a polyamide 6 recycling feeding system, which solves the technical problems of multiple equipment and high energy consumption in the prior art, and achieves the technical effects of reducing equipment and pipes, greatly reducing costs and energy consumption.

[0016] Please see Figure 1 As shown, the present invention provides a polyamide 6 recycling feeding system, which includes a caprolactam recycling storage tank 1, a water pump mechanism 2, a filter 3, a controller (not shown in the figure), and a caprolactam metering mechanism 4.

[0017] The caprolactam recycling tank 1 is connected to the water pump mechanism 2; the water pump mechanism 2 is connected to the filter 3; the filter 3 is connected to the caprolactam metering mechanism 4;

[0018] The caprolactam metering mechanism 4 includes at least one caprolactam metering unit 41. Each caprolactam metering unit 41 includes a first valve 411, a first water level sensor 412, and a caprolactam metering tank 413. The filter 3 is connected to the caprolactam metering tank 413 through the first valve 411. The first water level sensor 412 is located in the caprolactam metering tank 413. The controller is electrically connected to the first water level sensor 412 and the first valve 411.

[0019] Caprolactam enters the caprolactam recycling tank 1, and is then extracted by the water pump mechanism 2. After passing through the filter 3, it enters the caprolactam metering mechanism 4. The caprolactam metering mechanism 4 is equipped with at least one caprolactam metering unit 41. The first valve 411 in the caprolactam metering unit 41 that requires caprolactam is opened, and then caprolactam enters the caprolactam metering tank 413. The water level in the caprolactam metering tank 413 is obtained by the first water level sensor 412 and transmitted to the controller. After the set water level is reached, the first valve 411 is closed.

[0020] In another embodiment of this utility model, a sealed container 5 is further included. The sealed container 5 is provided with an exhaust port 51, an air inlet 52, a water inlet 53, and a wastewater outlet 54. The air inlet 51 is connected to the caprolactam recovery storage tank 1, the water inlet 53 is used for water intake, and the wastewater outlet 54 is used for wastewater discharge. The gas in the caprolactam recovery storage tank is introduced into the bottom of the sealed container 5 through the air inlet 53, so that the gas is in full contact with the water in the sealed container 5, so that the impurities in it dissolve in the water. Then, the clean gas is directly discharged into the air from the exhaust port 51, and some of the water in the sealed container 5 is discharged in time through the wastewater outlet 54.

[0021] In another embodiment of the present invention, the water pump mechanism 2 includes a first water pump 21 and a second water pump 22. The first water pump 21 is connected to the caprolactam recovery tank 1 and the filter 3, respectively, and the second water pump 22 is connected to the caprolactam recovery tank 1 and the filter 3, respectively. The caprolactam in the caprolactam recovery tank 1 is transported to the filter 3 by the first water pump 21 and / or the second water pump 22.

[0022] In another embodiment of this utility model, a second valve 6 and a second water level sensor 7 are also included. The controller is electrically connected to the second valve 6 and the second water level sensor 7 respectively. The caprolactam recovery storage tank 1 is provided with a caprolactam inlet pipe 11. The second valve 6 is provided on the caprolactam inlet pipe 11. The second water level sensor 7 is provided inside the caprolactam recovery storage tank 1. The liquid level in the caprolactam recovery storage tank 1 is obtained through the second water level sensor 7. Based on the position, the controller controls the opening and closing degree of the second valve 6, thereby controlling the amount of caprolactam in the caprolactam recovery storage tank 1 to ensure that there is neither too much nor too little caprolactam.

[0023] In another embodiment of this utility model, a first flow meter 8 is also included. The first flow meter 8 is disposed on the caprolactam inlet pipe and located before the second valve. The first flow meter 8 facilitates the user to calculate the flow rate and to know whether the pipe is blocked.

[0024] In another embodiment of this utility model, the caprolactam metering unit 41 further includes a second flow meter 414, which is located between the filter 3 and the first valve 411. The second flow meter 414 facilitates the user to calculate the flow rate and allows the user to know whether the pipeline is blocked.

[0025] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A recycled polyamide 6 feed system characterized by: The recovery caprolactam tank is connected to the water pump mechanism; the water pump mechanism is connected to the filter; the filter is connected to the caprolactam metering mechanism; The caprolactam metering mechanism comprises at least one caprolactam metering unit, each of which comprises a first valve, a first water level sensor and a caprolactam metering tank; the filter is connected to the caprolactam metering tank through the first valve, the first water level sensor is arranged in the caprolactam metering tank, and the controller is electrically connected to the first water level sensor and the first valve. Further comprising a sealed tank, which is provided with an exhaust port, an air inlet, a water inlet and a wastewater outlet; the air inlet is connected to the recovery caprolactam tank, the water inlet is used for water inlet, and the wastewater outlet is used for discharging wastewater.

2. A polyamide 6 recovery feed system as claimed in claim 1, characterized in that: The water pump mechanism comprises a first water pump and a second water pump, the first water pump is connected to the recovery caprolactam tank and the filter respectively, and the second water pump is connected to the recovery caprolactam tank and the filter respectively.

3. A polyamide 6 recovery feed system as claimed in claim 1, characterized in that: Further comprising a second valve and a second water level sensor, the controller is electrically connected to the second valve and the second water level sensor respectively; the recovery caprolactam tank is provided with a caprolactam inlet pipe, the second valve is arranged on the caprolactam inlet pipe, and the second water level sensor is arranged in the recovery caprolactam tank.

4. A polyamide 6 recovery feed system as claimed in claim 1, characterized in that: Further comprising a first flow meter, which is arranged on the caprolactam inlet pipe and located before the second valve.

5. A polyamide 6 recovery feed system as claimed in claim 4, characterized in that: The caprolactam metering unit further comprises a second flow meter, which is arranged between the filter and the first valve.

6. A polyamide 6 recovery feed system as claimed in claim 1, characterized in that: ​

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