CN210125397U - Material recycling device and polyolefin production system - Google Patents
Material recycling device and polyolefin production system Download PDFInfo
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- CN210125397U CN210125397U CN201920764351.8U CN201920764351U CN210125397U CN 210125397 U CN210125397 U CN 210125397U CN 201920764351 U CN201920764351 U CN 201920764351U CN 210125397 U CN210125397 U CN 210125397U
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Abstract
The utility model relates to a material recycle technical field discloses a material retrieval and utilization device and polyolefin production system. The material recycling device comprises: the device comprises a storage bin (1), wherein the storage bin (1) is used for receiving produced products, and a feeding hole (2) and a discharging hole (3) are formed in the storage bin (1); and at least two processing bins (4), processing bin (4) are used for carrying out degasification treatment to the product of production, every processing bin (4) are last all to be equipped with first import (5) and first export (6), processing bin (4) first import (5) with discharge gate (3) link to each other, at least one processing bin (4) first export (6) with feed inlet (2) link to each other in order to realize the retrieval and utilization. The utility model discloses a material retrieval and utilization device has reduced the transition material volume and has increased the output of product again, has solved simultaneously because of the transition material when selling with the problem that there is the price difference to influence the economic benefits of enterprise with the certified products material.
Description
Technical Field
The utility model relates to a material recycle technical field specifically relates to a material retrieval and utilization device and polyolefin production system.
Background
The existing devices for producing polyolefin have the disadvantages of more system units, more inlet equipment, relatively complex process and relatively independent extrusion and pneumatic conveying systems, and when one unit fails, the other associated units and the whole device are shut down, thereby causing the device to be shut down relatively frequently. Particularly, the high-pressure low-density polyethylene device has many interlocking points and is more frequently shut down due to the characteristics of high temperature and high pressure. Through the research of similar domestic devices, the average annual shutdown time of a polyolefin device is about 6 times, and the average annual shutdown time of a high-pressure device is about 20 times.
In addition, because the polyolefin consumption is large, downstream users are various, and types of departments are complicated, the required product brands are more, namely the polyolefin products with different names/purposes are needed, and the product brands of the production device are switched more frequently.
Whether the device is started after being shut down or the device is subjected to production conversion among products with different names, a large amount of transition materials are generated, and the transition materials refer to products with properties and purposes between two products when the two products with different purposes are switched.
Most transition materials have no difference in physical properties from the original materials except for a difference in melt index. The transition material has larger price difference with the quality material during sale, thereby influencing the benefit of enterprises. Therefore, how to reasonably utilize the same physical properties as those of the original materials, but only the transition materials with deviation of melt indexes is of great importance to the benefit influence of enterprises, and the problem is also a great need for the intensive thinking and research of polyolefin production enterprises.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the above-mentioned problem that prior art exists, provide a material retrieval and utilization device and polyolefin production system.
In order to achieve the above object, an aspect of the present invention provides a material recycling device, including:
the bin is used for receiving produced products and is provided with a feeding hole and a discharging hole; and
at least two processing bins, processing bin is used for carrying out degasification to the product of production and handles, every all be equipped with first import and first export on the processing bin, the first import of processing bin with the discharge gate links to each other, at least one processing bin first export with the feed inlet links to each other in order to realize the retrieval and utilization.
Optionally, the first outlet of at least one of the treatment bins is connected to the feed inlet through a recycling pipeline, and a valve assembly is arranged on the recycling pipeline.
Optionally, the valve assembly comprises a first gate valve and a first rotary delivery valve which are sequentially arranged along the conveying direction.
Optionally, the rotation speed of the first rotary delivery valve is set to be adjustable so that the amount of the reclaimed material in the reclaimed pipeline is not more than 3% of the feeding amount of the feed inlet.
Optionally, the material recycling device comprises a degassing fan, and the degassing fan is connected with the treatment bin to supply gas to the treatment bin to perform degassing treatment on the product;
the degassing fan is connected with each treatment bin through a degassing pipeline, and at least one degassing pipeline is connected with the recycling pipeline through a vent pipeline.
Optionally, the vent line has a second inlet connected to the degassing line and a second outlet connected to a portion of the return line between the valve assembly and the feed inlet.
Optionally, each treatment bin is connected with a discharge pipe, the discharge pipe has a third inlet and a third outlet, the third inlet is connected to the first outlet of the treatment bin, and the third outlet is directly discharged or correspondingly connected to the first inlet of the treatment bin.
Optionally, a second gate valve and a second rotary conveying valve are sequentially arranged on the discharging pipeline along the conveying direction; and/or
The feed bin with handle and link to each other through connecting tube between the storehouse, be equipped with third slide valve and third rotary transfer valve along defeated material direction on the connecting tube in proper order.
Optionally, the material recycling device comprises a conveying fan, and the conveying fan is connected to the connecting pipeline through a conveying pipeline; and/or
The conveying fan is connected to the discharging pipeline through a conveying pipeline.
The utility model discloses the second aspect provides a polyolefin production system, including polyolefin apparatus for producing and above-mentioned arbitrary scheme the material retrieval and utilization device, polyolefin apparatus for producing's discharge gate connect in the feed bin.
Through the technical scheme, the utility model discloses a material retrieval and utilization device links to each other with the feed inlet through the first export with at least one processing storehouse to unnecessary transition material carries out the retrieval and utilization in the production conversion process between the product of different names/usage, has reduced the output that the transition material volume has increased the product again to a certain extent, has solved simultaneously because of the transition material when selling with the quality control material have the cost difference and influence the economic benefits' of enterprise problem.
Drawings
Fig. 1 is a schematic structural view of a material recycling device according to an embodiment of the present invention.
Description of the reference numerals
1-storage bin, 2-feeding inlet, 3-discharging outlet, 4-processing bin, 41-first processing bin, 42-second processing bin, 5-first inlet, 6-first outlet, 7-recycling pipeline, 8-first gate valve, 9-first rotary conveying valve, 10-degassing fan, 11-degassing pipeline, 12-vent pipeline, 13-second inlet, 14-second outlet, 15-discharging pipeline, 16-third inlet, 17-third outlet, 18-second gate valve, 19-second rotary conveying valve, 20-connecting pipeline, 21-third gate valve, 22-third rotary conveying valve, 23-conveying fan, 24-conveying pipeline and 25-valve.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
With reference to fig. 1, according to an aspect of the present invention, there is provided a material recycling apparatus, including:
the device comprises a bin 1, wherein the bin 1 is used for receiving produced products, and a feeding hole 2 and a discharging hole 3 are formed in the bin 1; and
at least two processing bins 4, processing bin 4 is used for carrying out degasification to the product of production and handles, every all be equipped with first import 5 and first export 6 on the processing bin 4, the first import 5 of processing bin 4 with discharge gate 3 links to each other, at least one processing bin 4 first export 6 with feed inlet 2 links to each other in order to realize the retrieval and utilization.
It should be noted that the utility model discloses material retrieval and utilization device can be applicable to the material of arbitrary needs retrieval and utilization, the utility model discloses do not make special restriction to this. Wherein, feed bin 1 is used for receiving the product of producing, the product gets into after letting in from feed bin 1 and handles the storehouse 4 in the degasification and handle, the purpose of degasification is mainly for getting rid of combustible gas, can carry out the sample analysis to the material after different treatment storehouse 4 handles afterwards, judge whether the material after handling is qualified according to the analysis result, whether can satisfy the standard of selling promptly, if qualified then directly discharge and pack, if unqualified then can be mixed with the qualified product that lets in after through feed inlet 2 recycle feed bin 1, from this the quality of not changing qualified product, can reuse unnecessary transition material again, from having reduced the output of transition material volume again to a certain extent, solved simultaneously because of the transition material when selling with the problem that the economic benefits of enterprise is influenced to the quality difference in material.
The purpose of arranging at least two treatment bins 4 is to consider that in the production process, at least one treatment bin 4 is needed for packaging the normally discharged materials, and the product of at least one treatment bin 4 is needed for recycling, so that recycling and production are ensured to be carried out simultaneously, and the influence on the production efficiency of the materials due to recycling is avoided.
It should be noted that the product received in the silo 1 may be a genuine product material which is produced and meets the standard, or an unqualified material, or an intermediate transition material generated in the switching process of products of different brands, and it is finally determined whether to reuse the material subjected to degassing treatment in the treatment silo 4 by sampling analysis, specifically, the analysis method in the prior art is adopted to judge and analyze the melt index, density, mechanical properties, film forming property and the like of the material, so as to determine whether the discharged product meets the selling standard, and if not, the device can be used for reuse. The purpose of this device is to mix between transition material such as nonconforming material, intermediate material and the certified products material, for example can be at the transition material reuse in the in-process of feed bin 1 after the degasification is handled, lets in certified products material in the feed bin 1, and the material carries out the homogenization blending after the degasification to realize the make full use of transition material.
In particular, the device of the utility model is suitable for the production and the recycling of polyolefin.
Through the technical scheme, the utility model discloses a material retrieval and utilization device links to each other with the feed inlet through the first export with at least one processing storehouse to unnecessary transition material carries out the retrieval and utilization in the production conversion process between the product of different names/usage, has reduced the output that the transition material volume has increased the product again to a certain extent, has solved simultaneously because of the transition material when selling with the quality control material have the cost difference and influence the economic benefits' of enterprise problem.
Of course, in order to recycle the materials, a recycling pipeline needs to be provided, specifically, the first outlet 6 of the at least one treatment bin 4 is connected to the feed inlet 2 through a recycling pipeline 7, and the recycling pipeline 7 is provided with a valve assembly. The valve assembly is used for controlling the connection and disconnection of the pipeline so as to control whether the pipeline is reused or not. And if the materials after degassing treatment are analyzed to be unqualified materials, opening the valve assembly to allow the materials to flow out of the first outlet 6 into a recycling pipeline 7 and recycle the materials into the storage bin 1 through the feed inlet 2. If the degassed material meets the standard, the valve component is closed without recycling.
Further, the valve component comprises a first gate valve 8 and a first rotary delivery valve 9 which are sequentially arranged along the conveying direction. The first gate valve 8 is used for controlling the connection and disconnection of the recycling pipeline 7, and the first rotary conveying valve 9 realizes the transmission and conveying of materials through the rotation of the first rotary conveying valve.
Alternatively, the first rotary conveying valve 9 is a rotary conveying valve in the prior art, and the amount of conveyed materials can be adjusted under the condition of constant pipeline size according to different rotating speeds of the rotary conveying valve. Further, the rotation speed of the first rotary feed valve 9 is set to be adjustable so that the amount of the reclaimed material in the reclaimed pipe 7 is not more than 3% of the feeding amount of the feed port 2. By controlling the amount of recycled materials within 3 percent of the feeding amount, the maximum recycling of materials is realized on the basis of ensuring that the quality of the material is not influenced. Specifically, the rotational speed of the first rotatory delivery valve 9 of feed back volume accessible is adjusted and is controlled, and feed volume of feed bin 1 then can set up the feed valve or other weighing tool that are used for measuring the feeding load in feed bin 1 import department and realize, the utility model discloses do not do special restriction to this.
For the degasification of realization material, material recycling device includes degasification fan 10, degasification fan 10 with handle storehouse 4 and link to each other in order to handle the interior air feed of storehouse 4 and carry out degasification to the product and handle, degasification fan 10 with every handle and link to each other through degasification pipeline 11 between the storehouse 4 respectively. The treatment chamber 4 is ventilated by a degassing fan 10 through a degassing pipe 11 to discharge the combustible gas in the treatment chamber 4. Of course, the same deaeration fan 10 may be used to ventilate a plurality of processing chambers 4, or a plurality of deaeration fans 10 may be used to ventilate each processing chamber 4.
In addition, at least one degassing pipeline 11 is connected to the recycling pipeline 7 through an aeration pipeline 12, and a valve 25 can be arranged on the aeration pipeline 12 to control the connection and disconnection of the pipelines and select whether auxiliary material pushing is needed or not according to needs. Therefore, the redundant air quantity of the degassing fan 10 can be used for pushing the circulation speed of the materials in the recycling pipeline 7, and the auxiliary materials enter the storage bin 1 through the recycling pipeline 7.
In particular, the aeration line 12 has a second inlet 13 and a second outlet 14, the second inlet 13 being connected to the degassing line 11, the second outlet 14 being connected to the portion of the return line 7 located between the valve assembly and the feed inlet 2. Further, the second outlet 14 is connected to a portion between the first rotary feed valve 9 and the feed port 2. After the material flows out of the recycling pipeline 7, the material sequentially passes through the first gate valve 8 and the first rotary conveying valve 9 to be normally conveyed, and redundant air quantity of the degassing fan 10 is transmitted to the recycling pipeline 7 through the vent pipeline 12, so that the recycling rate of the material is accelerated.
The materials after degassing treatment need to be discharged normally, therefore, each treatment bin 4 is connected with a discharge pipeline 15, each discharge pipeline 15 is provided with a third inlet 16 and a third outlet 17, the third inlet 16 is connected to the first outlet 6 of the treatment bin 4, and the third outlet 17 is directly discharged or correspondingly connected to the first inlet 5 of the treatment bin. It will be appreciated that the qualified products directly discharged through the third outlet 17 can be used for normal packaging, while the products discharged from the third outlet 17 of the same treatment chamber 4 are returned to the first inlet 5 of the treatment chamber 4, so as to achieve a uniform and stable material circulation in the treatment chamber 4.
Certainly, in order to ensure smooth discharging, a second gate valve 18 and a second rotary delivery valve 19 are sequentially arranged on the discharging pipeline 15 along the conveying direction; and/or the storage bin 1 is connected with the treatment bin 4 through a connecting pipeline 20, and a third gate valve 21 and a third rotary conveying valve 22 are sequentially arranged on the connecting pipeline 20 along the conveying direction. Wherein the second gate valve 18 and the third gate valve 21 have the same function as the first gate valve 8, and the second rotary delivery valve 19 and the third rotary delivery valve 22 have the same function as the first rotary delivery valve 9. The material from the storage bin 1 enters the processing bin 4 through the connecting pipeline 20, and the material from the processing bin 4 is discharged through the discharging pipeline 15 or recycled into the storage bin 1 through the recycling pipeline 7.
Similarly, in order to increase the material conveying rate, the material recycling device comprises a conveying fan 23, and the conveying fan 23 is connected to the connecting pipeline 20 through a conveying pipeline 24; and/or the delivery fan 23 is connected to the exhaust duct 15 by a delivery duct 24. Gas is blown into the pipeline by the conveying fan 23 to push the conveying or discharging of the materials.
The utility model discloses the second aspect still provides a polyolefin production system, including polyolefin apparatus for producing and above-mentioned arbitrary scheme the material retrieval and utilization device, polyolefin apparatus for producing's discharge gate connect in feed bin 1. Above-mentioned polyolefin apparatus for producing can adopt the apparatus for producing polyolefin among the prior art, the utility model discloses do not do the restriction to this. The polyolefin after production enters the storage bin 1 through the discharge hole, and is discharged after degassing treatment in sequence, and in the process, products which do not meet the standard are recycled into the storage bin 1 through the recycling pipeline 7, so that recycling of the transition materials is realized.
In order to ensure the uniform feeding, a vibrating screen can be arranged at the feed inlet 2 of the stock bin 1.
The utility model discloses an operation process when the device specifically returns as follows:
as one embodiment, the degassing fan 10 is started first, the valve 25 is opened, and air blowing is performed for 30 seconds to ensure that the pipeline is cleaned;
then, starting a first rotary delivery valve 9 on the reuse pipeline 7, adjusting the frequency to 10Hz, and starting delivery for 30 seconds;
and then, opening the first gate valve 8 on the recycling pipeline and starting recycling and conveying the materials.
It should be noted that, during the conveying process, according to the requirement of the conveying amount, the rotating speed of the first rotary conveying valve 9 is adjusted to make the frequency between 10Hz and 40Hz, so as to ensure that the ratio of the recycled material amount does not exceed 3% of the original material amount.
When the material conveying device stops, the first gate valve 8 is firstly closed, the first rotary conveying valve 9 still continues to work, and the time delay conveying is carried out for 30 seconds, so that the materials on the first rotary conveying valve 9 can be enabled to completely enter the storage bin 1 through the recycling pipeline 7; next, stopping the first rotary conveying valve 9, blowing for 30 seconds by using a degassing fan 10, and blowing the residual materials into the storage bin 1; finally, the valve 25 is closed.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. In the technical idea scope of the present invention, it is possible to provide the technical solution of the present invention with a plurality of simple modifications, including combining each specific technical feature in any suitable manner, and in order to avoid unnecessary repetition, the present invention does not provide additional description for various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.
Claims (10)
1. A material recycling device is characterized by comprising:
the device comprises a storage bin (1), wherein the storage bin (1) is used for receiving produced products, and a feeding hole (2) and a discharging hole (3) are formed in the storage bin (1); and
at least two processing bins (4), processing bin (4) are used for carrying out degasification to the product of production and handle, every all be equipped with first import (5) and first export (6) on processing bin (4), processing bin (4) first import (5) with discharge gate (3) link to each other, at least one processing bin (4) first export (6) with feed inlet (2) link to each other in order to realize the retrieval and utilization.
2. The material recycling device according to claim 1, wherein the first outlet (6) of at least one of the treatment bins (4) is connected to the feed inlet (2) via a recycling pipe (7), and a valve assembly is disposed on the recycling pipe (7).
3. The material recycling device according to claim 2, wherein said valve assembly comprises a first gate valve (8) and a first rotary transfer valve (9) arranged in sequence along the feeding direction.
4. The material recycling apparatus according to claim 3, wherein the rotation speed of the first rotary conveying valve is set to be adjustable so that the recycling amount in the recycling pipe (7) is not more than 3% of the feeding amount of the feeding port (2).
5. The material recycling device according to claim 2, characterized in that the material recycling device comprises a degassing fan (10), and the degassing fan (10) is connected with the processing bin (4) to supply gas into the processing bin (4) to degas the product;
the degassing fan (10) is connected with each treatment bin (4) through a degassing pipeline (11), and at least one degassing pipeline (11) is connected to the recycling pipeline (7) through an air pipeline (12).
6. The material recycling apparatus according to claim 5, wherein said aeration pipe (12) has a second inlet (13) and a second outlet (14), said second inlet (13) being connected to said degassing pipe (11), said second outlet (14) being connected to the portion of said recycling pipe (7) located between said valve assembly and said inlet (2).
7. The material recycling device according to claim 1, wherein each processing bin (4) is connected with a discharge pipe (15), the discharge pipe (15) has a third inlet (16) and a third outlet (17), the third inlet (16) is connected to the first outlet (6) of the processing bin (4), and the third outlet (17) is directly discharged or correspondingly connected to the first inlet (5) of the processing bin.
8. The material recycling device according to claim 7, wherein a second gate valve (18) and a second rotary delivery valve (19) are sequentially arranged on the discharging pipeline (15) along the conveying direction; and/or
The storage bin (1) is connected with the treatment bin (4) through a connecting pipeline (20), and a third gate valve (21) and a third rotary conveying valve (22) are sequentially arranged on the connecting pipeline (20) along the conveying direction.
9. The material recycling device according to claim 8, characterized in that the material recycling device comprises a conveying fan (23), the conveying fan (23) is connected to the connecting pipe (20) through a conveying pipe (24); and/or
The conveying fan (23) is connected to the discharging pipeline (15) through a conveying pipeline (24).
10. A polyolefin production system, characterized in that it comprises a polyolefin production device and a material recycling device as claimed in any one of claims 1 to 9, the discharge port of the polyolefin production device is connected to the storage bin (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920764351.8U CN210125397U (en) | 2019-05-24 | 2019-05-24 | Material recycling device and polyolefin production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920764351.8U CN210125397U (en) | 2019-05-24 | 2019-05-24 | Material recycling device and polyolefin production system |
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| Publication Number | Publication Date |
|---|---|
| CN210125397U true CN210125397U (en) | 2020-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920764351.8U Active CN210125397U (en) | 2019-05-24 | 2019-05-24 | Material recycling device and polyolefin production system |
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| Country | Link |
|---|---|
| CN (1) | CN210125397U (en) |
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- 2019-05-24 CN CN201920764351.8U patent/CN210125397U/en active Active
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