Polyolefin blending and packaging mechanism and polyolefin production line

Abstract

The utility model discloses a polyolefin blending packing mechanism and polyolefin production line relates to polyolefin production technical field, including frame, at least two blending unit and at least two packing unit, at least two blending unit belong to different polyolefin device respectively, and the blending unit is installed on the frame, and at least two packing unit is installed in the frame. The at least two packaging units and the at least two mixing units are in one-to-one correspondence, the packaging units and the corresponding mixing units belong to the same polyolefin device, the packaging units are arranged below the corresponding mixing units, and the packaging units and the frame are relatively fixed. The mixing units of the at least two different polyolefin devices are mounted on the frame, so that the packaging units of the at least two different polyolefin devices are relatively fixed with the frame, the distance between the units of a plurality of polyolefin devices is reduced, and the occupied area is further reduced on the whole.

Description

Technical Field

[0001] The utility model relates to the technical field of polyolefin production, in particular to a polyolefin blending and packaging mechanism and a polyolefin production line. Background Art

[0002] When the polyolefin device of a petrochemical enterprise is in operation, the polyolefin product after extrusion granulation needs to be transported to the blending unit through the pneumatic conveying system for material blending, and then transported to the packaging unit through the pneumatic conveying system for packaging. When there are multiple polyolefin devices in the factory, each is equipped with its own blending unit and packaging unit.

[0003] The blending units and packaging units of multiple polyolefin devices are arranged on the ground, and a certain distance is required between the units of multiple polyolefin devices, which has the defect of large floor area. Summary of the Utility Model

[0004] To solve the above problems, the present application provides a polyolefin blending and packaging mechanism and a polyolefin production line.

[0005] The present application provides a polyolefin blending and packaging mechanism, including a frame, at least two blending units and at least two packaging units. At least two blending units belong to different polyolefin devices, and the blending units are all installed on the frame. At least two packaging units correspond to the at least two blending units one by one. The packaging unit and the corresponding blending unit belong to the same polyolefin device. The packaging unit is arranged below the corresponding blending unit and is relatively fixed to the frame.

[0006] In some embodiments, both the packaging unit and the frame are fixed on the ground.

[0007] In some embodiments, the frame is made of cast concrete.

[0008] In some embodiments, the blending unit includes:

[0009] A polyolefin material pipeline, along which a plurality of first reversing valves are arranged;

[0010] A plurality of blending bins, the inlets of the blending bins are connected to the polyolefin material pipeline through the first reversing valves. The outlet of each blending bin is connected to a rotary valve through a vertical feeding pipeline, and each rotary valve communicates with the inlet of a second reversing valve;

[0011] A blending conveying line, which is sequentially connected to one outlet of a plurality of second reversing valves along the line, and is also provided with a plurality of third reversing valves along the line and is sequentially connected to the inlets of a plurality of blending bins through the plurality of third reversing valves;

[0012] Among them, another outlet of the second reversing valve is communicated with the top end of the vertical blanking pipeline, and the bottom end of the vertical blanking pipeline is used to connect to the packaging unit.

[0013] In some embodiments, the blending and conveying line includes a first blending section, a second blending section, and a third blending section that are connected in sequence. The first blending section is used to connect to a fan. The middle blending section is connected to one outlet of a plurality of second reversing valves in sequence, and a plurality of third reversing valves are arranged along the lower blending section.

[0014] In some embodiments, a cooler and a filter are arranged in the first blending section.

[0015] In some embodiments, the first blending sections of the blending and conveying lines of all blending units are connected to the same fan.

[0016] In some embodiments, the polyolefin blending and packaging mechanism is provided with at least one standby fan, and the standby fan is connected to the first blending sections of the blending and conveying lines of all blending units.

[0017] In some embodiments, the packaging unit includes a packaging machine and a dust remover connected to the packaging machine. The dust remover is connected to the bottom end of the vertical blanking pipeline of the corresponding blending unit.

[0018] A polyolefin production line includes the above polyolefin blending and packaging mechanism.

[0019] The beneficial effects of the present application are as follows: A polyolefin blending and packaging mechanism is provided, including blending units and packaging units of at least two different polyolefin devices. The blending units in these polyolefin devices are arranged above the corresponding packaging units, and the material enters the lower packaging unit from the upper blending unit by gravity, thus having the advantages of reducing equipment investment, reducing floor space, reducing operating energy consumption, and reducing dust generated during the conveying process; in the polyolefin blending and packaging mechanism of the present application, the blending units of at least two different polyolefin devices are all installed on the frame, making the packaging units of at least two different polyolefin devices relatively fixed to the frame, reducing the distance between the units of multiple polyolefin devices, and further reducing the floor space as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention.

[0021] Figure 1 It is a layout diagram of a polyolefin blending and packaging mechanism provided by the present application;

[0022] Figure 2Schematic diagram of the installation of a polyolefin blending and packaging mechanism provided by this application on a frame.

[0023] Reference numerals in the attached drawings: 100 - frame, 200 - blending unit, 210 - polyolefin material pipeline, 211 - first reversing valve, 220 - blending bin, 221 - vertical feeding pipeline, 222 - rotary valve, 223 - second reversing valve, 230 - blending conveying line, 231 - third reversing valve, 232 - cooler, 233 - filter, 240 - fan, 241 - standby fan, 300 - packaging unit, 310 - packaging machine, 320 - dust remover. Detailed implementation manners

[0024] This application provides a polyolefin blending and packaging mechanism. Please refer to Figure 1 and Figure 2 , which includes a frame 100, a blending unit 200, and a packaging unit 300 that belong to at least two different polyolefin plants. Among them, the two different polyolefin plants refer to polyolefin plants that produce different products. For example, a polypropylene plant and a polyethylene plant belong to two different polyolefin plants.

[0025] In this application, the blending unit 200 in each polyolefin plant is arranged above the corresponding packaging unit 300. The material enters the lower packaging unit 300 from the upper blending unit 200 by gravity, eliminating the original pneumatic conveying system from the blending bin 220 to the packaging bin and the packaging bin, thus having the advantages of reducing equipment investment, reducing floor space, reducing operating energy consumption, and reducing dust generated during the conveying process. The scheme in which the packaging unit 300 in the polyolefin plant is arranged below the blending unit 200 belongs to the prior art and will not be expanded here.

[0026] The solution of this application includes at least two blending units 200 and at least two packaging units 300. The at least two blending units 200 belong to different polyolefin plants respectively. Please refer to Figure 2 , install all the blending units 200 on the frame 100, arrange the packaging unit 300 below the corresponding blending unit 200, and make the packaging unit 300 relatively fixed to the frame 100. Generally, the relative fixation of the packaging unit 300 and the frame 100 is achieved by fixing both the packaging unit 300 and the frame 100 to the ground; in some other feasible embodiments, the frame 100 is a multi-layer structure, and the multi-layer structure includes a layer at the lowest position, and the packaging unit 300 is installed on one layer of the frame 100.

[0027] In the solution of the present application, by installing the blending units 200 of at least two different polyolefin devices on the frame 100 and relatively fixing the packaging units 300 of at least two different polyolefin devices to the frame 100, the units of different polyolefin devices can be spaced relatively closely, reducing the spacing distance between the units of multiple polyolefin devices and further reducing the floor area as a whole.

[0028] In some embodiments, the frame 100 is made of cast concrete, with relatively large length, width and height, and the overall weight of the frame 100 and the blending units 200 installed on the frame 100 is extremely large. In some embodiments, the frame 100 can be considered to be made of steel.

[0029] Regarding the above-mentioned packaging unit 300 arranged below the corresponding blending unit 200, in some embodiments, please refer to Figure 1 , the blending unit 200 includes a polyolefin material pipeline 210, a blending conveying line 230 and a plurality of blending bins 220. A plurality of first reversing valves 211 are arranged along the polyolefin material pipeline 210. The inlets of the plurality of blending bins 220 are each connected to the polyolefin material pipeline 210 through a first reversing valve 211. The outlet of each blending bin 220 is connected to a rotary valve 222 through a vertically downward feeding pipeline 221. The inlet of each rotary valve 222 is communicated with an outlet of a second reversing valve 223. The blending conveying line 230 is sequentially connected to an outlet of a plurality of second reversing valves 223 along the line, and a plurality of third reversing valves 231 are also arranged along the line and are sequentially connected to the inlets of the plurality of blending bins 220 through the plurality of third reversing valves 231. Among them, the other outlet of the second reversing valve 223 is communicated with the top end of the vertical feeding pipeline, and the bottom end of the vertical feeding pipeline is used to connect the packaging unit 300.

[0030] Regarding the solution where the blending unit 200 described above includes a polyolefin material pipeline 210, a blending conveying line 230, and multiple blending bins 220, when this solution is specifically in operation, the polyolefin material enters the polyolefin material pipeline 210 and enters the designated blending bin 220 through the first reversing valve 211. Then, it passes through the rotary valve 222 at the outlet of the blending bin 220, and in this process, it discharges materials by relying on gravity. After passing through the second reversing valve 223 below the rotary valve 222, it is selected to enter the blending conveying line 230. A power air flow is input into the blending conveying line 230, and the materials are conveyed along the blending conveying line 230 through the power air flow, and are conveyed along the blending conveying line 230 until they are conveyed to the designated blending bin 220 through the third reversing valve 231 for blending and standing; for the materials after standing, they pass through the rotary valve 222 at the outlet of the blending bin 220, and in this process, they discharge materials by relying on gravity. After passing through the second reversing valve 223 below the rotary valve 222, they are selected to enter the vertical discharging pipeline until they enter the packaging unit 300 at the bottom of the vertical discharging pipeline, and the packaging unit 300 performs packaging operations on the materials.

[0031] In some embodiments, please refer to Figure 1 , the blending conveying line 230 includes a first blending section, a second blending section, and a third blending section that are connected in sequence. The first blending section is used to connect to the fan 240, and the fan 240 is used to provide a power air flow. The power air flow runs along the first blending section, the second blending section, and the third blending section in sequence. The middle blending section is connected to an outlet of one of the multiple second reversing valves 223 in sequence, and multiple third reversing valves 231 are arranged along the lower blending section.

[0032] In some embodiments, please refer to Figure 1 , a cooler 232 and a filter 233 are arranged in the first blending section. The cooler 232 cools the power air flow entering the blending conveying line 230, and the filter 233 filters the power air flow entering the blending conveying line 230. The power air flow after cooling and filtering carries the materials and moves along the blending conveying line 230.

[0033] In some embodiments, please refer to Figure 1 , the first blending sections of the blending conveying lines 230 of all the blending units 200 are all connected to the same fan 240, and one fan 240 can provide a power air flow for the blending conveying lines 230 of at least two polyolefin plants.

[0034] In some embodiments, please refer to Figure 1 , the polyolefin blending and packaging mechanism is provided with at least one standby fan 241, and the standby fan 241 is connected to the first blending sections of the blending conveying lines 230 of all the blending units 200. When the common fan 240 fails, the standby fan 241 is started to provide a power air flow for the blending conveying line 230.

[0035] In some embodiments, refer to Figure 1 , the packaging unit 300 includes a packaging machine 310 and a dust remover 320 connected to the packaging machine 310. The dust remover 320 is connected to the bottom end of the vertical feeding pipeline of the corresponding blending unit 200. The materials of the blending unit 200 enter the dust remover 320 under the action of gravity. The dust in the materials is removed by the dust remover 320, and the materials after dust removal enter the packaging machine 310 and are packaged in the packaging machine 310.

[0036] The present application also provides a polyolefin production line, which includes the above polyolefin blending and packaging mechanism, and also has other units of the polyolefin device. The other units of the polyolefin device include but are not limited to a polymerization reaction unit and an extrusion granulation unit. The polyolefin blending and packaging mechanism involves the blending unit 200 and the packaging unit 300 of at least two different polyolefin devices. The production of at least two polyolefin products can be achieved through the polyolefin production line.

[0037] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0038] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims

1. A polyolefin blending and packaging mechanism, characterized in that, Comprising: Frame; At least two blending units, which respectively belong to different polyolefin plants, and the blending units are all installed on the frame; At least two packaging units, which correspond one by one to at least two of the blending units. The packaging unit and the corresponding blending unit belong to the same polyolefin plant. The packaging unit is arranged below the corresponding blending unit, and the packaging unit is relatively fixed to the frame.

2. The polyolefin blending and packaging mechanism according to claim 1, wherein Both the packaging unit and the frame are fixed on the ground.

3. The polyolefin blending and packaging mechanism according to claim 1, wherein The frame is made of cast concrete.

4. The polyolefin blending and packaging mechanism according to any one of claims 1-3, wherein The blending unit comprises: A polyolefin material pipeline, along which a plurality of first reversing valves are arranged; A plurality of blending bins, the inlets of the blending bins are connected to the polyolefin material pipeline through the first reversing valves, the outlet of each blending bin is connected with a rotary valve through a vertical feeding pipeline, and each rotary valve communicates with the inlet of a second reversing valve; A blending conveying line, which is sequentially connected to an outlet of a plurality of the second reversing valves along the line, and a plurality of third reversing valves are also arranged along the line, and are sequentially connected to the inlets of the plurality of blending bins through the plurality of third reversing valves; Wherein, the other outlet of the second reversing valve is communicated with the top end of a vertical feeding pipeline, and the bottom end of the vertical feeding pipeline is used for connecting the packaging unit.

5. The polyolefin blending and packaging mechanism according to claim 4, wherein The blending conveying line comprises a first blending section, a second blending section and a third blending section which are sequentially connected. The first blending section is used for connecting a blower, the middle blending section is sequentially connected to an outlet of a plurality of the second reversing valves, and the lower blending section is provided with the plurality of third reversing valves along the line.

6. The polyolefin blending and packaging mechanism according to claim 5, wherein The first blending section is provided with a cooler and a filter.

7. The polyolefin blending and packaging mechanism according to claim 5, wherein The first blending sections of the blending conveying lines of all the blending units are all connected to the same blower.

8. The polyolefin blending and packaging mechanism according to claim 7, wherein The polyolefin blending and packaging mechanism is provided with at least one standby blower, and the standby blower is connected to the first blending sections of the blending conveying lines of all the blending units.

9. The polyolefin blending and packaging mechanism according to claim 4, wherein The packaging unit comprises a packaging machine and a dust remover connected to the packaging machine, and the dust remover is connected to the bottom end of the vertical feeding pipeline of the corresponding blending unit.

10. A polyolefin production line, characterized in that, Comprising the polyolefin blending and packaging mechanism according to any one of claims 1-9.

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