Polyamide pelletizing process equipment

Abstract

The utility model discloses polyamide pelletizing process equipment. The polyamide pelletizing process equipment comprises a post-polymerization discharge pump, a melt filter and pelletizing equipment, steam pipeline equipment, exhaust pipeline equipment and cooling water pipeline equipment are further arranged, the steam pipeline equipment is provided with a steam output pump and a steam conveying pipe, the steam output pump is connected with a first pipeline and a second pipeline, the exhaust pipeline equipment is provided with an exhaust pump and an exhaust pipe, and the exhaust pump is connected with a third pipeline and a fourth pipeline; the cooling water pipeline equipment is provided with a water delivery pump, a cooling pond and an impurity filter; the water delivery pump is connected with a pipeline V, a pipeline VI and a pipeline VII; according to the utility model, the steam pipeline equipment, the exhaust pipeline equipment and the cooling water pipeline equipment are arranged on the pelletizing equipment, and the steam pipeline equipment and the exhaust pipeline equipment are matched to suck away gaseous monomers existing in the pelletizing process, so that the generation of particles or dust is reduced, and the influence on human health is reduced; the cooling water outlet is added to facilitate cooling and solidification of the polyamide monomer at each position of the pelletizing equipment, and the impurity filter is utilized to filter the cooling water, so that impurities are prevented from being adsorbed on the surface of the polyamide monomer, and the pelletizing quality is improved.

Description

Technical Field

[0001] This utility model belongs to the field of chemical equipment technology, specifically, it relates to a polyamide pelletizing process equipment. Background Technology

[0002] In the preparation of polymer compounds, pelleting is a very important step in the molding and processing of melts. The pelleting process is further divided into several steps. Precise control of each step can ensure the quality requirements of polymer materials and reduce the difficulty of subsequent steps.

[0003] Existing polyamide pelletizing equipment includes a melt filter and pelletizing equipment. The molten monomer flowing out of the melt filter is at a high temperature, and there are gaseous monomers in the surrounding area. When the molten monomer flows into the casting strip water tank, it will solidify. When the gaseous monomers come into contact with air or water, they will form particles or dust, which will contaminate the cooling water and be inhaled, affecting people's health. If the particles or powder adhere to the surface of the solidified monomer, it will also affect the quality of the pelletized surface. In order to improve the pelletizing quality and reduce subsequent remedial processes, a polyamide pelletizing equipment is provided. Utility Model Content

[0004] In view of this, the technical problem to be solved by this utility model is to provide a polyamide pelletizing process equipment, which solves the problem of pelletizing equipment affecting pellet quality and human health in the prior art.

[0005] To solve the aforementioned technical problems, this utility model discloses a polyamide pelletizing process equipment, including: a post-polymerization discharge pump, a melt filter, and pelletizing equipment; it also includes a steam pipeline system, an exhaust pipeline system, and a cooling water pipeline system. The steam pipeline system has a steam output pump and a steam delivery pipe, with the steam output pump connected to pipeline one and pipeline two. The exhaust pipeline system has an exhaust pump and an exhaust pipe, with the exhaust pump connected to pipeline three and pipeline four. The cooling water pipeline system includes a water pump, a cooling tank, and an impurity filter, with the water pump connected to pipeline five. Pipeline 6 and Pipeline 7, the water pump and cooling pool are connected by Pipeline 8, the cooling pool and impurity filter are connected by Pipeline 9, one end of the impurity filter is connected to Pipeline 10; one end of Pipeline 1 and Pipeline 3 are connected to Adsorption Hood 1, one end of Pipeline 2 and Pipeline 4 are connected to Adsorption Hood 2, Adsorption Hood 1 is set on one side of the casting strip head, Adsorption Hood 2 is set above the casting strip water tank; one end of Pipeline 5 is set at the start-up head, one end of Pipeline 6 is set above the casting strip water tank, one end of Pipeline 7 is set at the pelletizer, and one end of Pipeline 10 is set at the bottom of the dewatering machine.

[0006] Furthermore, the aforementioned dehydrator is connected to a separate air extraction pipeline.

[0007] Furthermore, the end of the aforementioned casting strip head is provided with a casting strip plate, and the casting strip plate is provided with a plurality of linearly arranged casting strip holes.

[0008] Compared with the prior art, this application can achieve the following technical effects:

[0009] This invention incorporates a steam pipeline, an exhaust pipeline, and a cooling water pipeline into the pelletizing equipment. The steam pipeline and the exhaust pipeline work together to remove gaseous monomers present during the pelletizing process, reducing the generation of particles or dust and mitigating the impact on human health. The addition of a cooling water outlet facilitates the cooling and solidification of polyamide monomers at various locations within the pelletizing equipment. Furthermore, an impurity filter is used to filter the cooling water, preventing impurities from adsorbing onto the surface of the polyamide monomers and improving the quality of pelletizing.

[0010] Of course, any product implementing this application does not necessarily need to achieve all of the technical effects described above at the same time. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0012] Figure 1 This is a schematic diagram of the process flow of a pelletizing device according to one embodiment of the present invention.

[0013] Attached Figure Labels

[0014] Post-polymerization discharge pump 1, melt filter 2, pelletizing equipment 3, steam pipeline equipment 4, exhaust pipeline equipment 5, cooling water pipeline equipment 6, adsorption hood 1 7, adsorption hood 2 8, casting strip head 9, casting strip plate 10, post-polymerization pipe 11, starter head 31, casting strip water tank 32, pelletizer 33, dewatering machine 34, vibrating screen 35, steam output pump 40, steam transmission pipe 41, pipeline 1 42, pipeline 2 43, exhaust pump 50, exhaust pipe 51, pipeline 3 52, pipeline 4 53, water pump 60, cooling pool 61, impurity filter 62, pipeline 5 63, pipeline 6 64, pipeline 7 65, pipeline 8 66, pipeline 9 67, pipeline 10 68, pipeline 11 69. Detailed Implementation

[0015] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0016] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the process flow of a pelletizing device according to one embodiment of the present invention.

[0017] A polyamide pelletizing process equipment includes: a post-polymerization discharge pump 1, a melt filter 2, and a pelletizing device 3; it also includes a steam pipeline equipment 4, an exhaust pipeline equipment 5, and a cooling water pipeline equipment 6. The steam pipeline equipment 4 has a steam output pump 40 and a steam delivery pipe 41. The steam output pump 40 is connected to pipeline 42 and pipeline 43. The exhaust pipeline equipment 5 has an exhaust pump 50 and an exhaust pipe 51. The exhaust pump 50 is connected to pipeline 52 and pipeline 53. The cooling water pipeline equipment 6 has a water pump 60, a cooling tank 61, and an impurity filter 62. The water pump 60 is connected to pipeline 63, pipeline 64, and pipeline 65. The water pump 60 and the cooling tank 61 are connected via pipeline 66. 1. The impurity filter 62 is connected to the impurity filter 62 via pipeline 9 67. One end of the impurity filter 62 is connected to pipeline 10 68. One end of pipeline 1 42 and pipeline 3 52 are connected to the adsorption hood 1 7. One end of pipeline 2 43 and pipeline 4 53 are connected to the adsorption hood 2 8. The adsorption hood 1 7 is located on one side of the casting head 9. The adsorption hood 2 8 is located above the casting water tank 32. One end of pipeline 5 63 is located at the start-up head 31 for primary cooling. One end of pipeline 64 is located above the casting water tank 32 for secondary cooling. One end of pipeline 7 65 is located at the pelletizer 33 for tertiary cooling. Rapid cooling reduces the release of gaseous monomers and facilitates subsequent pelletizing. One end of pipeline 10 68 is located at the bottom of the dewatering machine 34.

[0018] The dewatering machine 34 is connected to a separate exhaust pipeline 5. The particles in the dewatering machine 34 will have residual heat. The gaseous monomers remaining in the sealed dewatering machine 34 will be completely extracted by the exhaust pipeline 5. The end of the casting strip head 9 is provided with a casting strip plate 10, which has multiple linearly arranged casting strip holes.

[0019] The pelletizing equipment 3 includes a starter head 31, a casting strip water tank 32, a pelletizer 33, a dewatering machine 34, and a vibrating screen 35. The starter head 31, the casting strip water tank 32, and the pelletizer 33 are mounted on the same frame. The starter head 31 is higher than the casting strip water tank 32, which is inclined. The casting strip water tank 32 is connected to the pelletizer 33 via a conveying trough. The starter head 31 is equipped with a distribution support, which has transversely linearly arranged guide grooves to facilitate the distribution of the molten strip in each guide groove. To prevent them from sticking together, a drainage trough is provided between the pelletizer 33 and the dewatering machine 34. A drain plate is provided on the upper part of the drainage trough. The melt strip is moved to the cutting table of the pelletizer 33 by the drive device and cut into pellets. The pellets fall and are washed onto the drainage trough by the water flow. They are blocked by the baffle on one side of the drainage trough. Cooling water flows along the pipeline 1169 of the drainage trough to the impurity filter 62. Then, the pellets are manually put into the dewatering machine 34 for dewatering. After dewatering, the pellets are put into the conveyor belt and transferred to the vibrating screen 35 for screening.

[0020] The post-polymerization discharge pump 1 delivers the melt in the post-polymerization pipe 11 to the melt filter 2. The melt filter 2 is equipped with a casting strip plate 10, which forms multiple melt strips through the casting strip holes. An adsorption hood 7 is set here to remove a large amount of gaseous monomers. The release of steam increases the temperature of the gaseous monomers, keeping them in a gaseous state for easy adsorption. After the gaseous monomers are degraded, they become particles or dust. The melt strips are cooled into solid strips by the cooling water pipeline equipment 6. Steam is generated in the casting strip water tank 32 when the strips are cooled by the cooling water. The adsorption hood 8 is set above the casting strip water tank 32 to adsorb the remaining gaseous monomers. The pelletizer 33 pelletizes the solid strips. The particles are flushed into the dewatering machine 34 by cold water. The dewatered particles are vibrated by the vibrating screen 35 and enter the pre-extraction water tank through the filter screen.

[0021] This invention incorporates a steam pipeline 4, an exhaust pipeline 5, and a cooling water pipeline 6 into the pelletizing equipment. The steam pipeline 4 and the exhaust pipeline 5 work together to remove gaseous monomers present during the pelletizing process, reducing the generation of particles or dust and mitigating the impact on human health. The addition of a cooling water outlet facilitates the cooling and solidification of polyamide monomers at various locations within the pelletizing equipment. Furthermore, the use of an impurity filter 62 to filter the cooling water prevents impurities from adsorbing onto the surface of the polyamide monomers, thereby improving the quality of pelletizing.

[0022] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A polyamide pelletizing process equipment, comprising: Post-polymer discharge pump, melt filter and pelletizing equipment; The system is characterized by further comprising a steam pipeline, an exhaust pipeline, and a cooling water pipeline. The steam pipeline includes a steam output pump and a steam delivery pipe, with the steam output pump connected to pipeline one and pipeline two. The exhaust pipeline includes an exhaust pump and an exhaust pipe, with the exhaust pump connected to pipeline three and pipeline four. The cooling water pipeline includes a water pump, a cooling pool, and an impurity filter. The water pump is connected to pipeline five, pipeline six, and pipeline seven. The water pump and cooling pool are connected via pipeline eight, and the cooling pool and impurity filter are connected via pipeline nine. One end of the impurity filter is connected to pipeline ten. One end of pipeline one and one end of pipeline three are connected to adsorption hood one, and one end of pipeline two and one end of pipeline four are connected to adsorption hood two. Adsorption hood one is located on one side of the casting strip head, and adsorption hood two is located above the casting strip water tank. One end of pipeline five is located at the start-up head, one end of pipeline six is ​​located above the casting strip water tank, one end of pipeline seven is located at the pelletizer, and one end of pipeline ten is located at the bottom of the dewatering machine.

2. The polyamide pelletizing equipment as described in claim 1, characterized in that, The dehydrator is connected to a separate air extraction pipeline.

3. The polyamide pelletizing equipment as described in claim 1, characterized in that, The end of the casting strip head is provided with a casting strip plate, and the casting strip plate is provided with multiple linearly arranged casting strip holes.

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