Transferring and conveying device for flame-retardant nylon particles

Abstract

The utility model discloses a flame-retardant nylon particle transferring and conveying device which comprises a conveying pipeline, and the top end of the conveying pipeline is fixedly connected with a pressure relief assembly. The pressure relief assembly comprises a valve seat, a valve clack is movably installed on the inner wall of the valve seat, a pressure relief opening is formed in the middle of the valve clack, the inner wall of the valve seat is in threaded connection with a spring gland, the top end of the spring gland is in threaded connection with a protection cover, and the inner wall of the valve clack is in sliding connection with a plugging plate. And the top end of the plugging plate is fixedly connected with a valve rod. When the pressure in the conveying pipeline is too high and exceeds a preset value, air pressure jacks up the plugging plate upwards to enable the plugging plate to slide in the valve clack and extrude the valve rod and the reset spring to enable the valve rod and the reset spring to contract, after the plugging plate moves by a certain distance, the pressure relief opening is opened, air flow in the conveying pipeline is discharged from the pressure relief pipe through the pressure relief opening, and the pressure in the conveying pipeline is reduced. The internal pressure is kept stable, and damage to a conveying pipeline or a high-pressure air pump is avoided.

Description

Technical Field

[0001] This utility model relates to the field of flame-retardant nylon granule production technology, specifically to a flame-retardant nylon granule transfer and conveying device. Background Technology

[0002] Flame-retardant nylon granules are specially treated nylon granules characterized by their non-flammability and excellent flame-retardant properties. This material is made by adding flame retardants to nylon resin, aiming to inhibit the combustion process and reduce the rate of fire spread, thereby achieving fire protection. Flame-retardant nylon granules are widely used in various fields, including but not limited to wires and cables, building materials, and automotive parts.

[0003] After the flame-retardant nylon granules are produced, in order to improve handling efficiency and reduce material spillage and waste, a transfer and conveying device is generally used to continuously and stably transport the flame-retardant nylon granules. This is mainly achieved by using a high-pressure air pump to create a rapid airflow in the conveying pipeline, which moves the flame-retardant nylon granules along the conveying pipeline to the storage bin. However, when the nylon granules do not move smoothly in the conveying pipeline and accumulate, it can easily cause excessive pressure inside the pipeline, resulting in damage to the conveying pipeline. Utility Model Content

[0004] The purpose of this invention is to provide a flame-retardant nylon particle transfer and conveying device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flame-retardant nylon granule transfer and conveying device, comprising a conveying pipe, the top end of which is fixedly connected to a pressure relief assembly; the pressure relief assembly includes a valve seat, a valve disc movably mounted on the inner wall of the valve seat, a pressure relief port opened in the middle of the valve disc, a spring cover threadedly connected to the inner wall of the valve seat, a protective cover threadedly connected to the top end of the spring cover, a sealing plate slidably connected to the inner wall of the valve disc, a valve stem fixedly connected to the top end of the sealing plate, a return spring movably sleeved on the surface of the valve stem, and a pressure relief pipe fixedly connected to the side of the valve seat near the pressure relief port.

[0006] As a further preferred embodiment of this technical solution, the top of the valve seat is provided with a threaded groove, the threaded groove is adapted to the spring cover, the top of the valve disc is in contact with the spring cover, the size of the sealing plate is slightly larger than the pressure relief port, and the valve stem is composed of two sleeve rods.

[0007] As a further preferred embodiment of this technical solution, a base is fixedly connected to the top end of the conveying pipe, a high-pressure air pump is fixedly connected to the top end of the base, an air inlet pipe is fixedly connected to the side of the high-pressure air pump away from the pressure relief component, and a filter screen is movably installed on the inner wall of the air inlet pipe.

[0008] As a further preferred embodiment of this technical solution, the end of the air intake pipe away from the high-pressure air pump passes through the delivery pipe and extends into it, and a support plate is provided on the inner wall of the air intake pipe, with the filter screen located at the top of the support plate.

[0009] As a further preferred embodiment of this technical solution, a feeding funnel is fixedly connected to the top end of the conveying pipe, a box cover is fixedly connected to the top end of the feeding funnel, and a feeding pipe is fixedly connected to the top end of the box cover.

[0010] As a further preferred embodiment of this technical solution, a rotary motor is fixedly connected to the top of the box cover, a connecting shaft is fixedly connected to the output end of the rotary motor, a stirring rod is fixedly connected to the surface of the connecting shaft, a scraper is fixedly connected to the surface of the connecting shaft, a connecting rod is fixedly connected to the bottom end of the connecting shaft, and a spiral auger is fixedly connected to the surface of the connecting rod.

[0011] As a further preferred embodiment of this technical solution, the connecting shaft passes through the box cover and extends into its interior, the number of stirring rods is provided in multiples, the number of scrapers is provided in twos, the side of the two scrapers away from the connecting shaft contacts the inner wall of the discharge funnel, and the connecting rods and the spiral auger are located inside the conveying pipe.

[0012] This utility model provides a flame-retardant nylon granule transfer and conveying device, which has the following beneficial effects:

[0013] (1) By adding a pressure relief component to the conveying pipeline, when the pressure inside the conveying pipeline is too high and exceeds the preset value, the air pressure pushes the sealing plate upward, causing it to slide inside the valve disc and squeeze the valve stem and the return spring to contract. After the sealing plate moves a certain distance, the pressure relief port is opened, and the airflow in the conveying pipeline is discharged from the pressure relief pipe through the pressure relief port to maintain the internal pressure stability and avoid damage to the conveying pipeline or high-pressure air pump.

[0014] (2) This utility model puts flame-retardant nylon granules into the conveying box through the feed pipe, starts the rotary motor, and drives the stirring rod to rotate through the connecting shaft. While the flame-retardant nylon granules fall, the stirring rod makes them rotate in the conveying box, which disperses the flame-retardant nylon granules that have condensed together to a certain extent. At the same time, the connecting rod drives the spiral auger to rotate, thereby quantitatively conveying the flame-retardant nylon granules into the conveying pipeline, avoiding the situation where there is too much flame-retardant nylon granules in the conveying pipeline and their movement is not smooth. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the pressure relief component structure of this utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the conveyor box of this utility model;

[0018] Figure 4 This is a schematic diagram of the air intake pipe and filter structure of this utility model.

[0019] In the diagram: 1. Conveying pipe; 2. Pressure relief assembly; 201. Valve seat; 202. Valve disc; 203. Pressure relief port; 204. Spring cover; 205. Protective cover; 206. Sealing plate; 207. Valve stem; 208. Return spring; 209. Pressure relief pipe; 3. Base; 4. High-pressure air pump; 5. Air inlet pipe; 6. Filter screen; 7. Discharge funnel; 8. Conveying box; 9. Box cover; 10. Feed pipe; 11. Rotary motor; 12. Connecting shaft; 13. Stirring rod; 14. Scraper; 15. Connecting rod; 16. Spiral auger. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model provides a technical solution: such as Figure 1 and Figure 4 As shown in this embodiment, a flame-retardant nylon particle transfer and conveying device includes a conveying pipe 1, with a pressure relief component 2 fixedly connected to the top end of the conveying pipe 1; the pressure relief component 2 includes a valve seat 201, a valve disc 202 movably installed on the inner wall of the valve seat 201, a pressure relief port 203 opened in the middle of the valve disc 202, a spring cover 204 threadedly connected to the inner wall of the valve seat 201, a protective cover 205 threadedly connected to the top end of the spring cover 204, a sealing plate 206 slidably connected to the inner wall of the valve disc 202, a valve stem 207 fixedly connected to the top end of the sealing plate 206, a return spring 208 movably sleeved on the surface of the valve stem 207, and a pressure relief pipe 209 fixedly connected to the side of the valve seat 201 near the pressure relief port 203.

[0022] When the pressure inside the conveying pipe 1 is too high and exceeds the preset value, the air pressure pushes the sealing plate 206 upward, causing it to slide inside the valve disc 202 and squeeze the valve stem 207 and the return spring 208 to contract. After the sealing plate 206 moves a certain distance, the pressure relief port 203 is opened, and the airflow in the conveying pipe 1 is discharged from the pressure relief pipe 209 through the pressure relief port 203 to maintain stable internal pressure and avoid damage to the conveying pipe or the high-pressure air pump 4.

[0023] The valve seat 201 has a threaded groove on its top, which is compatible with the spring cover 204. The top of the valve disc 202 contacts the spring cover 204. The sealing plate 206 is slightly larger than the pressure relief port 203. The valve stem 207 consists of two sleeves.

[0024] A base 3 is fixedly connected to the top of the conveying pipe 1, and a high-pressure air pump 4 is fixedly connected to the top of the base 3. An air inlet pipe 5 is fixedly connected to the side of the high-pressure air pump 4 away from the pressure relief component 2, and a filter screen 6 is movably installed on the inner wall of the air inlet pipe 5.

[0025] The end of the air intake pipe 5 away from the high-pressure air pump 4 passes through the delivery pipe 1 and extends into it. A support plate is provided on the inner wall of the air intake pipe 5, and the filter screen 6 is located at the top of the support plate.

[0026] A feeding hopper 7 is fixedly connected to the top end of the conveying pipe 1, a box cover 9 is fixedly connected to the top end of the feeding hopper 7, and a feeding pipe 10 is fixedly connected to the top end of the box cover 9.

[0027] A rotary motor 11 is fixedly connected to the top of the box cover 9. A connecting shaft 12 is fixedly connected to the output end of the rotary motor 11. A stirring rod 13 is fixedly connected to the surface of the connecting shaft 12. A scraper 14 is fixedly connected to the surface of the connecting shaft 12. A connecting rod 15 is fixedly connected to the bottom end of the connecting shaft 12. A spiral auger 16 is fixedly connected to the surface of the connecting rod 15.

[0028] By feeding flame-retardant nylon granules into the conveying box 8 through the feed pipe 10, starting the rotary motor 11, and driving the stirring rod 13 to rotate via the connecting shaft 12, the flame-retardant nylon granules fall while being rotated within the conveying box 8 by the stirring rod 13, thus breaking up the clumps of flame-retardant nylon granules to a certain extent. At the same time, the connecting rod 15 drives the auger 16 to rotate, thereby quantitatively conveying the flame-retardant nylon granules into the conveying pipe 1, avoiding an excessive amount of flame-retardant nylon granules in the conveying pipe 1, which would hinder their movement.

[0029] The connecting shaft 12 passes through the box cover 9 and extends into it. There are multiple stirring rods 13 and two scrapers 14. The side of the two scrapers 14 away from the connecting shaft 12 contacts the inner wall of the discharge hopper 7. The connecting rod 15 and the spiral auger 16 are located inside the conveying pipe 1.

[0030] This utility model provides a flame-retardant nylon granule transfer and conveying device, the specific working principle of which is as follows:

[0031] In use, flame-retardant nylon granules are fed into the conveying box 8 through the feed pipe 10. The rotary motor 11 is started, and the connecting shaft 12 drives the stirring rod 13 to rotate. As the flame-retardant nylon granules fall, the stirring rod 13 causes them to rotate within the conveying box 8, breaking up any clumps of nylon granules. Simultaneously, the connecting rod 15 drives the auger 16 to rotate, thus quantitatively conveying the flame-retardant nylon granules into the conveying pipe 1. The high-pressure air pump 4 is then started, pumping a large amount of air into the conveying pipe to generate rapid... The high-speed airflow carries flame-retardant nylon particles along the conveying pipeline to achieve transfer and conveying. When the pressure inside the conveying pipeline 1 is too high and exceeds the preset value, the air pressure pushes the sealing plate 206 upward, causing it to slide inside the valve disc 202 and squeeze the valve stem 207 and the return spring 208 to contract. After the sealing plate 206 moves a certain distance, the pressure relief port 203 is opened, and the airflow inside the conveying pipeline 1 is discharged from the pressure relief pipe 209 through the pressure relief port 203 to maintain the stability of the internal pressure of the conveying pipeline 1.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flame-retardant nylon granule transfer and conveying device, comprising a conveying pipe (1), characterized in that: The top end of the conveying pipe (1) is fixedly connected to a pressure relief assembly (2); the pressure relief assembly (2) includes a valve seat (201), a valve disc (202) is movably installed on the inner wall of the valve seat (201), a pressure relief port (203) is opened in the middle of the valve disc (202), a spring cover (204) is threadedly connected to the inner wall of the valve seat (201), a protective cover (205) is threadedly connected to the top end of the spring cover (204), a sealing plate (206) is slidably connected to the inner wall of the valve disc (202), a valve stem (207) is fixedly connected to the top end of the sealing plate (206), a return spring (208) is movably sleeved on the surface of the valve stem (207), and a pressure relief pipe (209) is fixedly connected to the side of the valve seat (201) near the pressure relief port (203).

2. The flame-retardant nylon granule transfer and conveying device according to claim 1, characterized in that: The valve seat (201) has a threaded groove on its top, which is adapted to the spring cover (204). The top of the valve disc (202) is in contact with the spring cover (204). The size of the sealing plate (206) is slightly larger than that of the pressure relief port (203). The valve stem (207) consists of two sleeves.

3. The flame-retardant nylon granule transfer and conveying device according to claim 1, characterized in that: The top end of the conveying pipe (1) is fixedly connected to a base (3), the top end of the base (3) is fixedly connected to a high-pressure air pump (4), the side of the high-pressure air pump (4) away from the pressure relief assembly (2) is fixedly connected to an air inlet pipe (5), and a filter screen (6) is movably installed on the inner wall of the air inlet pipe (5).

4. The flame-retardant nylon granule transfer and conveying device according to claim 3, characterized in that: The end of the air inlet pipe (5) away from the high-pressure air pump (4) passes through the delivery pipe (1) and extends into it. The inner wall of the air inlet pipe (5) is provided with a support plate, and the filter screen (6) is located at the top of the support plate.

5. The flame-retardant nylon granule transfer and conveying device according to claim 1, characterized in that: The top end of the conveying pipe (1) is fixedly connected to a feeding funnel (7), the top end of the feeding funnel (7) is fixedly connected to a box cover (9), and the top end of the box cover (9) is fixedly connected to a feeding pipe (10).

6. The flame-retardant nylon granule transfer and conveying device according to claim 5, characterized in that: A rotary motor (11) is fixedly connected to the top of the box cover (9). A connecting shaft (12) is fixedly connected to the output end of the rotary motor (11). A stirring rod (13) is fixedly connected to the surface of the connecting shaft (12). A scraper (14) is fixedly connected to the surface of the connecting shaft (12). A connecting rod (15) is fixedly connected to the bottom end of the connecting shaft (12). A spiral auger (16) is fixedly connected to the surface of the connecting rod (15).

7. The flame-retardant nylon granule transfer and conveying device according to claim 6, characterized in that: The connecting shaft (12) passes through the box cover (9) and extends into it. There are multiple stirring rods (13) and two scrapers (14). The side of the two scrapers (14) away from the connecting shaft (12) contacts the inner wall of the discharge funnel (7). The connecting rod (15) and the spiral auger (16) are located inside the conveying pipe (1).

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