Blending and packaging unit and blending and packaging system for polyolefin polymer

Abstract

The utility model discloses a polyolefin polymer blending packaging unit and blending packaging system.The blending packaging unit comprises a material mixing bin, a merging pipeline, a first conveying system and a second conveying system, materials are gathered from an input branch to an output branch under the gravity effect, the design simplifies the material flowing path, and the blending packaging efficiency is improved. And energy consumption and equipment abrasion are reduced. The powder remover and the packaging machine are arranged on the lower portion of the mixing bin, materials can directly flow into the powder remover and the packaging machine under the action of gravity, the additional conveying requirement is reduced, the second conveying system drives the materials to circulate in the mixing bin or circulate among different mixing bins through compressed air, the mixing uniformity of the materials is improved, and the mixing efficiency is improved. Meanwhile, material waste is reduced, flexible mixing operation can be carried out on different materials, the occupied area of the whole device is reduced, integrated arrangement and use of a compressed air circulation system are reduced, energy consumption and equipment investment are reduced, and meanwhile product quality and production efficiency are improved.

Description

Technical Field

[0001] This application relates to the field of polyolefin polymer production technology, and in particular to a polyolefin polymer blending and packaging unit and blending and packaging system. Background Technology

[0002] In the polyolefin unit of a petrochemical enterprise, the polyolefin product after extrusion granulation needs to be transported to the blending unit through a pneumatic conveying system for material blending. After blending, the qualified material is then transported to the packaging unit through the pneumatic conveying system for packaging.

[0003] After granulation, the polyolefin granules enter the blending silo. A pneumatic conveying system blends the materials stored in the silo. After blending, the materials are again conveyed via the pneumatic conveying system to the separator at the top of the packaging silo. Dust is removed from the materials, and they are then carried by gravity into the packaging silo for buffer storage. Finally, they flow into the packaging machine by gravity for packaging. The dust and air removed from the separator enter a cyclone separator or bag filter to filter out the dust from the air, and the exhaust gas is discharged into the atmosphere.

[0004] The existing solution consists of two separate process units: the blending unit and the packaging unit. Furthermore, the blending silo is typically located far from the packaging silo, requiring a pneumatic conveying system to transport the material from the blending silo to the packaging silo. Several packaging silos are also needed for buffer storage of the material. This results in numerous equipment requirements and high investment costs. Moreover, during the conveying process, the polyolefin particles collide and abrade, generating fibrous material and dust, which is detrimental to stable production operations. The overall production system also consumes a large amount of electricity and occupies a large area. Utility Model Content

[0005] In view of the deficiencies in the prior art, this application provides a blending and packaging unit and a blending and packaging system for polyolefin polymers to solve the problems of complex blending and poor stability in the production unit of the prior art.

[0006] The above-mentioned objectives of this application are mainly achieved through the following technical solutions:

[0007] A blending packaging unit for a polyolefin polymer, the blending packaging unit comprising:

[0008] A mixing bin, wherein multiple mixing bins are arranged side by side at the same height, and the top and bottom of the mixing bins are respectively provided with an inlet and an outlet;

[0009] The combined pipeline includes an output branch and multiple input branches respectively connected to the discharge port. A dust collector and a packaging machine are connected in sequence to the output branch. The dust collector and the packaging machine are arranged at the bottom of the mixing silo. The mixed material can be gathered from the input branch to the output branch under the action of gravity, and packaged by the packaging machine after passing through the dust collector.

[0010] A first conveying system, the output end of which is connected to the inlet of the plurality of mixing bins respectively, the first conveying system being connected to the mixing bins and used to feed materials into the mixing bins;

[0011] The second conveying system has an input end for introducing compressed air and an output end that is simultaneously connected to the inlet and outlet of multiple mixing bins, so that the compressed air can drive the material to circulate within one mixing bin or drive the material to circulate between different mixing bins.

[0012] In an optional embodiment, a control valve is provided on the discharge port of the mixing silo, the control valve being used to control the material entering the merging pipeline or the second conveying system.

[0013] In an optional embodiment, a reversing valve is provided between the first conveying system and each of the plurality of mixing bins.

[0014] In an optional embodiment, a reversing valve is provided between the second conveying system and each of the plurality of mixing bins.

[0015] In an optional embodiment, a rotary valve is provided between the second conveying system and the discharge port of the mixing silo.

[0016] In an optional embodiment, the blending and packaging unit includes a main frame, on which the mixing hopper, the merging pipeline, the dust remover, and the packaging machine are arranged sequentially from top to bottom.

[0017] Based on the same inventive concept, this application also provides a blending packaging system, which includes the blending packaging unit as described above.

[0018] In an optional embodiment, there are multiple blending packaging units, and the multiple blending packaging units are arranged in parallel.

[0019] In an optional embodiment, the blending and packaging system further includes a conveying fan connected to the input of the second conveying system for introducing compressed air into the second conveying system.

[0020] In an optional embodiment, a cooler and a filter are sequentially provided between the conveying fan and the second conveying system.

[0021] Compared with the prior art, the advantages of this application are:

[0022] The polyolefin polymer blending and packaging unit of this application includes a mixing silo, a merging pipeline, a first conveying system, and a second conveying system. Multiple mixing silos are arranged side-by-side at the same height. Each mixing silo has an inlet and an outlet at its top and bottom, respectively. The merging pipeline includes an output branch and multiple input branches connected to the outlets. A dust collector and a packaging machine are sequentially connected to the output branch. The dust collector and the packaging machine are located below the mixing silo. The blended material, under gravity, flows from the input branches to the output branch and is packaged by the packaging machine after passing through the dust collector. The output end of the first conveying system is connected to multiple... The inlets of the mixing bins are connected to each other. The first conveying system is connected to the mixing bins and is used to feed materials into the mixing bins. The input end of the second conveying system is used to feed compressed air. The output end of the second conveying system is connected to the inlets and outlets of the multiple mixing bins, so that the compressed air drives the material to circulate in one mixing bin or drives the material to circulate between different mixing bins. The multiple mixing bins are arranged side by side at the same height position, which can simultaneously mix multiple materials, improving the mixing efficiency. The material converges from the input branch to the output branch under the action of gravity. This design simplifies the material flow path and reduces energy consumption and equipment wear. The dust collector and packaging machine are located at the bottom of the mixing silo. The material can flow directly into the dust collector and packaging machine under gravity, reducing the need for additional conveying. The second conveying system uses compressed air to drive the material to circulate within the mixing silo or between different mixing silos, improving the mixing uniformity of the material and reducing material waste. Flexible mixing operations can be carried out for different materials, reducing the footprint of the entire unit. The integrated layout and the use of the compressed air circulation system reduce energy consumption and equipment investment, while improving product quality and production efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the blending and packaging unit provided in an embodiment of this application;

[0025] Figure 2 This is a schematic diagram of the structure of the blending packaging unit provided in the embodiments of this application;

[0026] In the diagram: 100, Mixing and Packaging Unit; 200, Mixing Bin; 201, Inlet; 202, Outlet; 300, Merging Pipeline; 301, Output Branch; 302, Input Branch; 400, First Conveying System; 500, Second Conveying System; 601, Dust Collector; 602, Packaging Machine; 701, Control Valve; 702, Directional Valve; 703, Rotary Valve; 801, Main Frame; 901, Conveying Fan; 902, Cooler; 903, Filter. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the description of these embodiments is intended to aid in understanding the present invention, but does not constitute a limitation thereof. The specific structural and functional details disclosed herein are only for describing exemplary embodiments of the present invention. However, the present invention may be embodied in many alternative forms and should not be construed as being limited to the embodiments described herein.

[0028] like Figure 1 , Figure 2 As shown, Figure 1 This is a schematic diagram of the blending and packaging unit 100 provided in an embodiment of this application. Figure 2 This is a schematic diagram of the structure of the blending packaging unit 100 provided in the embodiments of this application; a blending packaging unit 100 for a polyolefin polymer, the blending packaging unit 100 including a mixing hopper 200, a merging pipeline 300, a first conveying system 400 and a second conveying system 500, wherein:

[0029] Multiple mixing bins 200 are provided and arranged side-by-side at the same height. Each mixing bin 200 has an inlet 201 at its top and an outlet 202 at its bottom. The side-by-side arrangement of the multiple mixing bins at the same height facilitates management and operation. Each mixing bin 200 has an inlet 201 at the top and an outlet 202 at the bottom, allowing materials to smoothly enter the mixing bin 200 from the inlet 201 and flow out from the outlet 202.

[0030] like Figure 1 , Figure 2As shown, the merging pipeline 300 includes an output branch 301 and multiple input branches 302 respectively connected to the discharge port 202. A dust collector 601 and a packaging machine 602 are connected in sequence to the output branch 301. The dust collector 601 and the packaging machine 602 are arranged at the lower part of the mixing silo 200. The mixed material can be gathered from the input branches 302 to the output branch 301 under the action of gravity, and then packaged by the packaging machine 602 after passing through the dust collector 601.

[0031] The merging pipeline 300 connects to the outlets 202 of each mixing bin 200. The merging pipeline 300 includes one output branch 301 and multiple input branches 302. These input branches 302 are connected to the outlets 202 of each mixing bin 200, while the output branch 301 is sequentially connected to a dust collector 601 and a packaging machine 602. This allows the mixed materials to converge from the input branches 302 to the output branch 301 under gravity, and then flow directly into the dust collector 601 and the packaging machine 602.

[0032] The dust remover 601, located on the output branch 301, is responsible for removing dust from the material to ensure cleanliness and material quality during subsequent packaging. The packaging machine 602, located after the dust remover 601, is responsible for packaging the cleaned material for storage and transportation.

[0033] like Figure 1 , Figure 2 As shown, the output end of the first conveying system 400 is connected to the inlet 201 of the plurality of mixing bins 200 respectively. The first conveying system 400 is connected to the mixing bins 200 and is used to feed materials into the mixing bins 200.

[0034] like Figure 1 , Figure 2 As shown, the first conveying system 400 is a conveying system connected to the inlet 201 of the mixing bin 200. The first conveying system 400 is responsible for conveying materials from the raw material storage area to each mixing bin 200. This ensures a continuous supply of materials and allows for adjustment of the conveying speed as needed.

[0035] like Figure 1 , Figure 2 As shown, the input end of the second conveying system 500 is used to introduce compressed air, and the output end of the second conveying system 500 is simultaneously connected to the inlet 201 and outlet 202 of multiple mixing bins 200, so that the compressed air drives the material to circulate within one mixing bin 200, or drives the material to circulate between different mixing bins 200.

[0036] The second conveying system 500 is used to introduce compressed air. The input end of the second conveying system 500 is connected to a compressed air source, and the output end is connected to the inlet 201 and outlet 202 of all mixing bins 200. In this way, the compressed air can drive the material to circulate within the mixing bins 200. According to operational needs, materials from individual mixing bins 200 can be controlled to fall into the second conveying system 500, and under the driving force of the compressed air flow, the material in each individual mixing bin 200 returns to that bin 200 to continue mixing until the target operational requirements are met. Alternatively, according to production needs, materials from different mixing bins 200 can enter the second conveying system 500 separately, and under the driving force of compressed air, enter the designated mixing bin 200 for blending, thereby achieving the target blending effect. This method offers high operational flexibility.

[0037] In an optional embodiment, the working principle of the polyolefin polymer blending and packaging unit 100 in this application is as follows: The blending and packaging unit 100 includes a mixing silo 200, a merging pipeline 300, a first conveying system 400, and a second conveying system 500. Multiple mixing silos 200 are provided, and these silos 200 are arranged side-by-side at the same height. The top and bottom of each mixing silo 200 are respectively provided with an inlet 201 and an outlet 202. The merging pipeline 300 includes an output branch 301 and multiple input branches 302 respectively connected to the outlet 202. A dust collector 601 and a packaging machine 602 are sequentially connected to the output branch 301. The dust collector 601 and the packaging machine 602 are arranged at the lower part of the mixing silo 200. The blended material can be drawn from the input branches 302 to the output branch 301 under gravity, and after passing through the dust collector 601, it is transported by the... The packaging machine 602 performs packaging. The output end of the first conveying system 400 is connected to the inlet 201 of multiple mixing bins 200 respectively. The first conveying system 400 is connected to the mixing bins 200 and is used to feed materials into the mixing bins 200. The input end of the second conveying system 500 is used to feed compressed air. The output end of the second conveying system 500 is simultaneously connected to the inlet 201 and outlet 202 of multiple mixing bins 200, so that the compressed air drives the material to circulate within one mixing bin 200, or drives the material to circulate between different mixing bins 200. Multiple mixing bins 200 are arranged side by side at the same height position, which can simultaneously mix multiple materials, improving mixing efficiency. Under the action of gravity, the material converges from the input branch 302 to the output branch 301. This design simplifies the material flow path and reduces energy consumption and equipment wear. The dust collector 601 and packaging machine 602 are located at the bottom of the mixing bin 200. The material can flow directly into the dust collector 601 and packaging machine 602 under gravity, reducing the need for additional conveying. The second conveying system 500 uses compressed air to drive the material to circulate within the mixing bin 200 or between different mixing bins 200, improving the mixing uniformity of the material and reducing material waste. Flexible mixing operations can be carried out for different materials, reducing the footprint of the entire device. The integrated layout and the use of the compressed air circulation system reduce energy consumption and equipment investment, while improving product quality and production efficiency.

[0038] like Figure 1 , Figure 2 As shown, in an optional embodiment, a control valve 701 is provided on the discharge port 202 of the mixing silo 200. The control valve 701 is used to control the material to enter the merging pipeline 300 or the second conveying system 500.

[0039] A control valve 701 is specifically installed at the discharge port 202 of each mixing bin 200. The main function of this control valve 701 is to regulate and control the flow direction of the material, determining whether the material enters the merging pipeline 300 or the second conveying system 500. This provides greater control flexibility, allowing operators to adjust the flow path of the material according to production needs to adapt to different production conditions and blending ratios.

[0040] like Figure 1 , Figure 2 As shown, in an optional embodiment, a reversing valve 702 is provided between the first conveying system 400 and each of the plurality of mixing bins 200. These reversing valves 702 allow the operator to change the conveying direction of the material as needed, thereby conveying material to different mixing bins 200. This improves the system's flexibility and adaptability, allowing the material conveying path to be adjusted according to production plans or material characteristics.

[0041] like Figure 1 , Figure 2 As shown, in an optional embodiment, a reversing valve 702 is provided between the second conveying system 500 and each of the plurality of mixing bins 200. Corresponding to the first conveying system 400, a reversing valve 702 is also provided between the second conveying system 500 and each of the plurality of mixing bins 200. These reversing valves 702 control the flow direction of compressed air, allowing compressed air to circulate between different mixing bins 200 or within a single mixing bin 200. This helps to achieve more precise material mixing and a more uniform blending effect.

[0042] like Figure 1 , Figure 2 As shown, in an optional embodiment, a rotary valve 703 is provided between the second conveying system 500 and the discharge port 202 of the mixing silo 200. The rotary valve 703 allows for rapid switching of material flow without stopping the entire system, which is crucial for improving production efficiency and reducing material waste. The rotary valve 703 also helps reduce system pressure fluctuations and ensures the stability of material flow.

[0043] like Figure 1 , Figure 2 As shown, in an optional embodiment, the mixing and packaging unit 100 includes a main frame 801, and the mixing hopper 200, the merging pipeline 300, the powder remover 601 and the packaging machine 602 are arranged sequentially from top to bottom on the main frame 801.

[0044] The blending and packaging unit 100 also includes a main frame 801, which serves as the structural foundation of the entire unit. The mixing hopper 200, merging pipeline 300, dust remover 601, and packaging machine 602 are arranged sequentially from top to bottom on the main frame 801. This integrated arrangement makes the entire unit compact, easy to operate, and also convenient to maintain and clean. The main frame 801 also considers load-bearing capacity and stability, ensuring the safety and reliability of the entire unit during operation.

[0045] like Figure 1 , Figure 2 As shown, based on the same inventive concept, this application also provides a blending packaging system, which includes the blending packaging unit 100 as described above. Specifically, in this blending packaging system, except that the blending packaging unit 100 and related components adopt the technical solutions in the above embodiments, the structure, connection relationship, installation position, etc. of other devices can refer to the relevant disclosures of the prior art, and will not be elaborated here.

[0046] like Figure 1 , Figure 2 As shown, in an optional embodiment, there are multiple blending packaging units 100, and the multiple blending packaging units 100 are arranged in parallel.

[0047] The blending and packaging system comprises multiple blending and packaging units 100 arranged in parallel. This allows the system to process larger material flows simultaneously, significantly improving production capacity. The parallel-arranged units can operate independently or work collaboratively to achieve more complex blending ratios and larger production volumes, depending on different production needs.

[0048] like Figure 1 , Figure 2 As shown, in an optional embodiment, the blending and packaging system further includes a conveying fan 901 connected to the input end of the second conveying system 500 for supplying compressed air to the second conveying system 500.

[0049] The blending and packaging system also includes a conveying fan 901 connected to the input of the second conveying system 500. The conveying fan 901 is responsible for supplying compressed air to the second conveying system 500. In a system with multiple blending and packaging units 100 arranged in parallel, all of the blending and packaging units 100 are simultaneously supplied with air by the conveying fan 901. The integration of the conveying fan 901 ensures a stable supply of compressed air, which is crucial for maintaining the continuity and uniformity of the entire blending and packaging process.

[0050] like Figure 1 , Figure 2As shown, in an optional embodiment, a cooler 902 and a filter 903 are sequentially provided between the conveying fan 901 and the second conveying system 500.

[0051] Between the conveying fan 901 and the second conveying system 500, a cooler 902 and a filter 903 are sequentially installed. The cooler 902 reduces the temperature of the compressed air to prevent excessively high air temperatures from affecting normal and reliable production operations. The filter 903 removes impurities and moisture from the compressed air, ensuring the quality of the air entering the system, which is essential for protecting internal system components and improving the quality of the final product.

[0052] Blending and packaging systems may also include automated control systems and monitoring equipment for real-time monitoring and adjustment of operating parameters of individual units, such as temperature, pressure, and flow rate. These automation features improve system responsiveness and operational accuracy, reduce human error, and lower operating costs.

[0053] Energy consumption and emissions are reduced by optimizing the use of compressed air and heat management. The use of cooler 902 and filter 903 also helps to reduce environmental impact.

[0054] It should be understood that the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. Although the terms "first," "second," etc., may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another. For example, a first unit may be referred to as a second unit, and similarly, a second unit may be referred to as a first unit, without departing from the scope of the exemplary embodiments of this utility model.

[0055] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0056] It should be understood that in the description of this utility model, the terms "upper," "vertical," "inner," "outer," etc., indicate the orientation or positional relationship when the disclosed product is used, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0057] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0058] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments of the present invention. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” “containing,” and / or “including” as used herein specify the presence of the stated features, integers, steps, operations, units, and / or components, and do not exclude the presence or addition of one or more other features, quantities, steps, operations, units, components, and / or combinations thereof.

[0059] Specific details are provided in the following description to provide a complete understanding of the exemplary embodiments. However, those skilled in the art will understand that the exemplary embodiments can be implemented without these specific details. In other embodiments, well-known processes, structures, and techniques may be omitted in the depiction of non-essential details to avoid obscuring the exemplary embodiments.

[0060] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

[0061] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art.

Claims

1. A polyolefin polymer compounding packaging unit characterized by, The blending and packaging unit comprises: a plurality of mixing bins arranged side by side at the same height, the top and bottom of each mixing bin being provided with an inlet and an outlet, respectively; a merging pipeline comprising an output branch and a plurality of input branches each connected to the outlet of a mixing bin, the output branch being sequentially connected to a deduster and a packaging machine, the deduster and the packaging machine being arranged below the mixing bins, so that the blended material can be gathered from the input branches to the output branch under the action of gravity, and then be packaged by the packaging machine after passing through the deduster; a first conveying system, the output end of which is connected to the inlet of each mixing bin, the first conveying system being in communication with the mixing bins and being used to introduce material into the mixing bins; a second conveying system, the input end of which is used to introduce compressed air, the output end of which is connected to the inlet and the outlet of each mixing bin, so that the compressed air drives the material to circulate in one mixing bin or between different mixing bins.

2. The polyolefin polymer blend packaging unit of claim 1, wherein: A control valve is arranged on the outlet of each mixing bin, which is used to control the material to enter the merging pipeline or the second conveying system.

3. The polyolefin polymer compounding packaging unit of claim 1, wherein: A reversing valve is arranged between the first conveying system and each mixing bin.

4. The polyolefin polymer blend packaging unit of claim 1, wherein: A reversing valve is arranged between the second conveying system and each mixing bin.

5. The polyolefin polymer compounding packaging unit of claim 4, wherein: A rotary valve is arranged between the second conveying system and the outlet of each mixing bin.

6. The polyolefin polymer compounding packaging unit of claim 1, wherein: The blending and packaging unit comprises a main frame, and the mixing bins, the merging pipeline, the deduster and the packaging machine are sequentially arranged on the main frame from top to bottom.

7. A blend packaging system characterized by: The blending and packaging system comprises the blending and packaging unit according to any one of claims 1-6.

8. The blend packaging system of claim 7, wherein: A plurality of blending and packaging units are arranged in parallel.

9. The blend packaging system of claim 7, wherein: The blending and packaging system further comprises a conveying fan connected to the input end of the second conveying system, which is used to introduce compressed air into the second conveying system.

10. The blend packaging system of claim 9, wherein: A cooler and a filter are sequentially arranged between the conveying fan and the second conveying system.

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