Granulation production line and storage bin thereof

Abstract

The material storage bin comprises a shell and a spiral conveying device, a cavity is formed in the shell, the cavity is provided with a feeding port and a discharging port, the spiral conveying device comprises a first spiral conveying mechanism and a second spiral conveying mechanism, the first spiral conveying mechanism comprises a first rotating shaft, and the second spiral conveying mechanism comprises a second rotating shaft. The first spiral conveying mechanism comprises a first rotating shaft, a first spiral blade is arranged on the first rotating shaft, the second spiral conveying mechanism comprises a second rotating shaft, a second spiral blade is arranged on the second rotating shaft, the first rotating shaft and the second rotating shaft are arranged in the cavity through bearing seats, and the second rotating shaft is located above the first rotating shaft. The first spiral conveying mechanism is used for conveying chemical fiber materials to the discharging port in the first direction, the second spiral conveying mechanism is used for conveying the chemical fiber materials in the second direction, and the first direction is opposite to the second direction. Reverse conveying of the second spiral conveying mechanism can generate'unloading force ', so that uniform distribution of the materials in the cavity is facilitated, and local excessive accumulation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of waste material recycling equipment, in particular to a granulation production line and a storage bin thereof. Background Art

[0002] A pelletizer is a mechanical device mainly used in the plastic recycling and processing industry. Its main function is to convert waste plastic films, sheets, fibers or other forms of thermoplastic waste into uniform plastic particles through a series of physical processes. These particles can be used again as raw materials in the production of plastic products.

[0003] The pelletizing machine makes granules through the heat shrinkage of chemical fiber materials. The high-speed rotating moving knife disc is equipped with a sharp moving knife, which is matched with a fixed fixed knife, forming a high-intensity shear force field between the two.

[0004] A Chinese patent with the authorization announcement number CN205326058U discloses a production line for crushing and separating waste films into pellets, which includes a shredder, a cleaning machine, a separation sedimentation tank and a pelletizer connected in sequence through a conveying device; wherein the shredder includes two driving mechanisms and two main shafts respectively installed on the two driving mechanisms, and a knife body is provided on the main shaft, and the two driving mechanisms respectively drive the two main shafts to rotate to drive the knife body to rotate. Among them, the conveying equipment also includes an inclined spiral feeder. A main shaft and a spiral blade installed on the main shaft are provided in the body of the spiral feeder. The material enters the spiral space formed by the spiral blade, the main shaft and the inner wall of the body of the spiral feeder from the feed end. The main shaft and the spiral blade rotate under the drive of the driving device, and the spiral blade pushes the material forward, thereby completing the transportation of the material.

[0005] This patent has the following disadvantages: material accumulation is likely to form in the spiral feeder, and this accumulation may hinder the smooth flow of materials and affect the efficiency and stability of the entire production line. Utility Model Content

[0006] Therefore, it is necessary to provide a granulation production line and a storage bin thereof to solve the problem that the existing granulation production line is transported by a screw feeder, but material accumulation is easily formed in the screw feeder.

[0007] To achieve the above-mentioned purpose, the present embodiment provides a storage bin, including a shell and a screw conveying device, the interior of the shell is provided with a cavity, the cavity is provided with a feed port and a discharge port, the screw conveying device includes a first screw conveying mechanism and a second screw conveying mechanism, the first screw conveying mechanism includes a horizontal first rotating shaft, the first rotating shaft is provided with a first spiral blade, the second screw conveying mechanism includes a horizontal second rotating shaft, the second rotating shaft is provided with a second spiral blade, the first rotating shaft and the second rotating shaft are respectively arranged in the cavity, the second rotating shaft is located above the first rotating shaft, the first rotating shaft extends to the discharge port, the first screw conveying mechanism is used to convey chemical fiber materials to the discharge port along a first direction, and the second screw conveying mechanism is used to convey chemical fiber materials along a second direction, and the first direction is opposite to the second direction.

[0008] Furthermore, the first spiral blade includes a first forward spiral blade and a first reverse spiral blade, the rotation direction of the first forward spiral blade is opposite to the rotation direction of the first reverse spiral blade, the first forward spiral blade is used to transport the chemical fiber material to the discharge port along a first direction, the first reverse spiral blade is located at the discharge port, and the first reverse spiral blade is used to transport the chemical fiber material along a second direction to prevent the chemical fiber material from blocking the discharge port.

[0009] Furthermore, the first reverse spiral blade is one piece or half a piece.

[0010] Furthermore, the discharge port is located at the end of the first forward spiral blade and below the first reverse spiral blade.

[0011] Furthermore, the second spiral blade includes a second forward spiral blade and a second reverse spiral blade, the rotation direction of the second forward spiral blade is opposite to the rotation direction of the second reverse spiral blade, the second forward spiral blade is used to transport the chemical fiber material along the second direction, and the second reverse spiral blade is provided in the direction of the second forward spiral away from the discharge port, and the second reverse spiral blade is used to transport the chemical fiber material along the first direction.

[0012] Furthermore, the first screw conveying mechanism also includes a first motor, which is connected to the first rotating shaft, and the second screw conveying mechanism also includes a second motor, which is connected to the second rotating shaft. The first motor drives the first rotating shaft in a rotation direction that is consistent with the second motor driving the second rotating shaft, and the rotation speed of the first motor is greater than the rotation speed of the second motor.

[0013] Furthermore, the outer diameter of the first spiral blade is greater than the outer diameter of the second spiral blade.

[0014] Furthermore, there are two discharge ports and they are arranged on the left and right. There are two first screw conveying mechanisms and two second screw conveying mechanisms. The first first screw conveying mechanism and the first second screw conveying mechanism form a first screw conveying unit, and the second first screw conveying mechanism and the second second screw conveying mechanism form a second screw conveying unit. The first screw conveying unit and the second screw conveying unit are arranged on the left and right and correspond to one discharge port respectively. A triangular partition is provided between the first screw conveying unit and the second screw conveying unit.

[0015] Furthermore, the second rotating shaft is located obliquely above the first rotating shaft, and the two second screw conveying mechanisms are located between the two first screw conveying mechanisms.

[0016] To achieve the above-mentioned purpose, the present embodiment also provides a granulation production line, including a shredder, a storage bin and a pelletizer, the storage bin is arranged between the shredder and the pelletizer, the storage bin is the storage bin described in any one of the above-mentioned embodiments, the upper opening of the cavity of the storage bin is formed with a feed port, the feed port of the storage bin receives the chemical fiber material shredded by the shredder, the discharge port of the storage bin is located at the lower part of the shell, and the feed port of the pelletizer receives the chemical fiber material transported by the storage bin.

[0017] Different from the prior art, the above technical solution has the following beneficial effects:

[0018] The second spiral blade on the second rotating shaft conveys the chemical fiber material in the opposite direction to the conveying direction of the first spiral blade on the first rotating shaft, which means that the reverse conveying of the second spiral conveying mechanism can generate a "unloading force" to help the uniform distribution of the material in the cavity, avoiding local excessive accumulation, especially breaking up the chemical fiber material gathered at the material inlet, preventing the chemical fiber material from blocking the material outlet, and ensuring smooth discharge. The design of bidirectional spiral conveying improves the fluidity of the material, reduces production interruptions caused by blockage, and improves the overall efficiency of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the storage bin in this embodiment;

[0020] Figure 2 is a three-dimensional diagram of the screw conveying device in this embodiment;

[0021] Figure 3 is a three-dimensional diagram of the first spiral blade and the second spiral blade in this embodiment;

[0022] Figure 4 1 is a top view of the storage bin in this embodiment;

[0023] Figure 5It is a front view of the granulation production line in this embodiment.

[0024] Description of reference numerals:

[0025] 1. Storage silo;

[0026] 11. Shell;

[0027] 111, feed port;

[0028] 112. Discharge port;

[0029] 113. Partition;

[0030] 12. Screw conveying device;

[0031] 121. A first spiral conveying mechanism;

[0032] 1211. a first rotating shaft; 1212. a first spiral blade;

[0033] 1213, a first forward spiral blade; 1214, a first reverse spiral blade;

[0034] 1215, first motor;

[0035] 122. A second spiral conveying mechanism;

[0036] 1221. a second rotating shaft; 1222. a second spiral blade;

[0037] 1223, second forward spiral blade; 1224, second reverse spiral blade;

[0038] 1225, second motor;

[0039] 2. Shredder;

[0040] 3. Agglomeration machine;

[0041] 4. The first conveyor belt;

[0042] 5. Second conveyor belt. DETAILED DESCRIPTION

[0043] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0044] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0045] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0046] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0047] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0048] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0049] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0050] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0051] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0052] See also Figures 1 to 4 The present embodiment provides a storage bin, including a shell 11 and a screw conveying device 12. The shell 11 is provided with a cavity inside, and the cavity is provided with a feed port 111 and a discharge port 112. The discharge port 112 is located below the feed port 111. The screw conveying device 12 includes a first screw conveying mechanism 121 and a second screw conveying mechanism 122. The first screw conveying mechanism 121 includes a horizontal first rotating shaft 1211, and the first rotating shaft 1211 is provided with a first spiral blade 1212. The second screw conveying mechanism 122 includes a horizontal second rotating shaft 1211. The first rotating shaft 1211 and the second rotating shaft 1221 are provided with a second spiral blade 1222. The first rotating shaft 1211 and the second rotating shaft 1221 are respectively arranged in the cavity through the bearing seat. The second rotating shaft 1221 is located above the first rotating shaft 1211. The first rotating shaft 1211 extends to the discharge port 112. The first spiral conveying mechanism 121 is used to convey the chemical fiber material to the discharge port 112 along the first direction. The second spiral conveying mechanism 122 is used to convey the chemical fiber material along the second direction. The first direction is opposite to the second direction. The first direction is Figure 2 and Figure 4 As shown by arrow a in the figure, the second direction is Figure 2 and Figure 4 As shown by arrow b in .

[0053] The chemical fiber material enters the cavity of the storage bin 1 through the feed inlet 111. The cavity has a large volume and can accommodate a large amount of chemical fiber material.

[0054] The first spiral conveying mechanism 121 is installed at a lower position, and its core component is a horizontally arranged first rotating shaft 1211, on which first spiral blades 1212 are tightly mounted. These blades are designed to be of a special shape for efficiently pushing materials. The first rotating shaft 1211 is fixed in the housing 11 through a solid bearing seat to ensure smooth operation, and extends to a position close to the discharge port 112, so as to directly convey the chemical fiber material to the next process.

[0055] The second spiral conveying mechanism 122 is located above the first spiral conveying mechanism 121, and is also equipped with a horizontally arranged second rotating shaft 1221 and a second spiral blade 1222. The second spiral blade 1222 on the second rotating shaft 1221 conveys the chemical fiber material in a direction opposite to that of the first spiral blade 1212 on the first rotating shaft 1211, for example, the second spiral blade 1222 on the second rotating shaft 1221 rotates in a direction opposite to that of the first rotating shaft 1211. This means that the reverse conveying of the second spiral conveying mechanism 122 can generate a "unloading force", which helps to evenly distribute the material in the cavity, avoids local excessive accumulation, and especially breaks up the chemical fiber material gathered at the material port position, prevents the chemical fiber material from blocking the discharge port 112, and ensures smooth discharge.

[0056] The bidirectional spiral conveying design improves the fluidity of materials, reduces production interruptions due to blockages, and improves the overall efficiency of the production line.

[0057] See also Figure 2 , Figure 3 and Figure 4 In this embodiment, the first spiral blade 1212 includes a first forward spiral blade 1213 and a first reverse spiral blade 1214. The rotation direction of the first forward spiral blade 1213 is opposite to that of the first reverse spiral blade 1214. The first forward spiral blade 1213 is used to transport the chemical fiber material to the discharge port 112 along a first direction. The first reverse spiral blade 1214 is located at the discharge port 112. The first reverse spiral blade 1214 is used to transport the chemical fiber material along a second direction to prevent the chemical fiber material from blocking the discharge port 112.

[0058] The first spiral blade 1212 has two blade parts, namely, the first forward spiral blade 1213 and the first reverse spiral blade 1214. The first forward spiral blade 1213 in the cavity of the shell 11 performs its main task, that is, efficiently pushes the chemical fiber material to the discharge port 112 along the set first direction. The first reverse spiral blade 1214 has a rotation direction opposite to that of the first forward blade and is installed at a position close to the discharge port 112. The purpose of this design is to ensure the uniform and smooth flow of the material through the subtle adjustment of the reverse push when the material is about to leave the conveying path and enter the next processing link. The material that attempts to accumulate at the discharge port 112 will be dispersed by this reverse force, thereby effectively avoiding the occurrence of blockage.

[0059] See also Figure 3 In this embodiment, the first reverse spiral blade 1214 is one piece or half a piece. Figure 3 A half-piece of the first reverse spiral blade 1214 is shown.

[0060] The first forward spiral blades 1213 are responsible for the main material conveying task due to their large number (usually a complete annular structure including multiple blades), and efficiently push the chemical fiber material from the inside of the shell 11 to the discharge port 112. The first reverse spiral blades 1214, which are one or half blades, intervene at the last stage of this conveying process. Through their ingeniously designed reverse rotation, they specifically break up the small amount of material that may begin to accumulate near the discharge port 112 to ensure smooth discharge. In some embodiments, the first reverse spiral blades 1214 can also be two, two and a half, three, etc., but there is no need for too many.

[0061] See also Figure 1 and Figure 2 In this embodiment, the discharge port 112 is located at the end of the first forward spiral blade 1213 and below the first reverse spiral blade 1214. The second rotating shaft 1221 can also extend above the discharge port 112. The first forward spiral blade 1213 extends along the inside of the shell 11 to its end, which is the exit position where the material is about to leave the shell 11 and enter the next step.

[0062] See also Figure 2 , Figure 3 and Figure 4 In this embodiment, the second spiral blade 1222 includes a second forward spiral blade 1223 and a second reverse spiral blade 1224. The rotation direction of the second forward spiral blade 1223 is opposite to that of the second reverse spiral blade 1224. The second forward spiral blade 1223 is used to transport the chemical fiber material along the second direction. The second reverse spiral blade 1224 is provided in the direction of the second forward spiral away from the discharge port 112. The second reverse spiral blade 1224 is used to transport the chemical fiber material along the first direction.

[0063] The second spiral conveying mechanism 122 not only includes a second forward spiral blade 1223 for conveying chemical fiber materials in the second direction, but also has a second reverse spiral blade 1224 in the direction away from the discharge port 112. The second reverse spiral blade 1224 turns in the opposite direction to the second forward spiral blade 1223 to convey materials in the first direction. This design aims to further optimize the mixing, conveying and accumulation prevention of materials through the synergistic effect of the upper and lower spiral blades.

[0064] See also Figure 3 In this embodiment, the second reverse spiral blade 1224 is one piece or half a piece. Figure 3 The second reverse spiral blade 1224 is shown as a half piece.

[0065] The second forward spiral blades 1223 are mainly used to break up the chemical fiber materials due to their large number (usually a complete annular structure including multiple blades). The second reverse spiral blades 1224, which are one or half pieces, deposit the materials on the side of the cavity through their ingeniously designed reverse rotation. In some embodiments, the second reverse spiral blades 1224 can also be two pieces, two and a half pieces, three pieces, etc., but there is no need for too many.

[0066] See also Figure 1 , Figure 2 and Figure 4 In this embodiment, the first screw conveying mechanism 121 further includes a first motor 1215, which is connected to the first rotating shaft 1211, and the second screw conveying mechanism 122 further includes a second motor 1225, which is connected to the second rotating shaft 1221. The rotation direction of the first rotating shaft 1211 driven by the first motor 1215 is opposite to the rotation direction of the second rotating shaft 1221 driven by the second motor 1225, and the rotation speed of the first motor 1215 is greater than the rotation speed of the second motor 1225. Preferably, the first motor 1215 and the second motor 1225 are arranged outside the cavity, so that the first rotating shaft 1211 and the second rotating shaft 1221 penetrate the outside of the cavity and are connected to the first motor 1215 and the second motor 1225.

[0067] The high-speed rotation of the first motor 1215 drives the first spiral blade 1212 to convey the material in the first direction at a high speed, providing the main propulsion force to ensure that the material can pass through the housing 11 quickly and efficiently. The second motor 1225 runs at a lower speed, driving the second spiral blade 1222 to rotate in the second direction, which is opposite to the first spiral blade 1212. However, its main function is not to compete with the first spiral blade 1212 for conveying, but to produce a subtle stirring and dispersing effect on the material through a slower rotation speed and reverse motion. In particular, the second reverse spiral blade 1224 near the discharge port 112, its slow reverse rotation can effectively prevent material accumulation and promote uniform distribution of the material.

[0068] In some embodiments, the output shafts of the first motor 1215 and the second motor 1225 have the same rotation direction. In order to allow the second rotating blade to play a dispersing role, it is necessary to adjust the rotation direction of the second rotating blade.

[0069] In this embodiment, the rotation speed of the first motor 1215 is 3-5 times the rotation speed of the second motor 1225, and a speed difference is formed between the two, which produces a proper stirring and dispersing effect on the chemical fiber material.

[0070] See also Figures 2 to 4 In this embodiment, the outer diameter of the first helical blade 1212 is greater than the outer diameter of the second helical blade 1222. Preferably, the outer diameter of the first positive helical blade 1213 is the same as the outer diameter of the first reverse helical blade 1214, and the outer diameter of the second positive helical blade 1223 is the same as the outer diameter of the second reverse helical blade 1224.

[0071] By increasing the outer diameter of the first rotating blade, its ability to capture and propel materials is enhanced, ensuring that the materials can be transported to the discharge port 112 along the housing 11 with higher efficiency. Although the second spiral blade 1222 has a smaller outer diameter, it still effectively breaks up possible material accumulation with its unique reverse thrust to prevent blockage.

[0072] See also Figure 1 , Figure 2 and Figure 4 In this embodiment, there are two discharge ports 112 and they are arranged on the left and right. There are two first spiral conveying mechanisms 121 and two second spiral conveying mechanisms 122. The first first spiral conveying mechanism 121 and the first second spiral conveying mechanism 122 form a first spiral conveying unit, and the second first spiral conveying mechanism 121 and the second second spiral conveying mechanism 122 form a second spiral conveying unit. The first spiral conveying unit and the second spiral conveying unit are arranged on the left and right and correspond to one discharge port 112 respectively. A triangular partition 113 is provided between the first spiral conveying unit and the second spiral conveying unit.

[0073] Each conveying unit includes a pair of first screw conveying mechanisms 121 and second screw conveying mechanisms 122, which work together to form two completely symmetrical working systems. The two conveying units are cleverly separated by a triangular partition 113, and the sharp corners of the triangular partition 113 face upwards, which plays a diversion role. Each conveying unit works independently. Even if one unit needs maintenance or adjustment, the other unit can continue to operate, ensuring the continuity of production and enhancing the flexibility and adaptability of the production line. The left-right symmetrical structural design ensures the balanced distribution of materials in the two conveying units, avoids unilateral overload, makes the overall system run more stable, and reduces the failure rate. The triangular partition 113 not only physically isolates the two conveying units, but also guides the flow of materials through its shape, reduces unnecessary cross-flow, and improves the efficiency and quality of material transportation.

[0074] See also Figures 1 to 4 In this embodiment, the second rotating shaft 1221 is located obliquely above the first rotating shaft 1211, and the two second screw conveying mechanisms 122 are located between the two first screw conveying mechanisms 121. Preferably, the second rotating shaft 1221 is located 30° obliquely above the first rotating shaft 1211 to prevent the chemical fiber material from bridging.

[0075] See also Figure 5 The present embodiment further provides a granulation production line, including a shredder 2, a storage bin 1 and a pelletizer 3. A storage bin 1 is provided between the shredder 2 and the pelletizer 3. The storage bin 1 is the storage bin 1 described in any one of the above embodiments. The structure of the storage bin is as follows: Figures 1 to 4 As shown, the upper opening of the cavity of the storage bin 1 is formed with a feed port 111, and the discharge port 112 is arranged at the bottom of the storage bin 1. The feed port 111 of the storage bin 1 receives the chemical fiber material shredded by the shredder 2, and the discharge port 112 of the storage bin 1 is located at the lower part of the shell 11. The feed port 111 of the pelletizer 3 receives the chemical fiber material transported by the storage bin 1.

[0076] The chemical fiber fragments coming out of the shredder 2 fall into the feed port 111 of the storage bin 1 by gravity and enter the cavity. The screw conveying device 12 inside the storage bin 1 starts to work, and the first screw conveying mechanism 121 pushes the material to the discharge port 112 along the first direction, and then falls out of the discharge port 112 downward under the action of gravity, while the second screw conveying mechanism 122 performs auxiliary control on the material in the second direction opposite to the first direction, such as dispersion and anti-blocking treatment. The chemical fiber material is continuously and evenly transported to the granulator 3 by the storage bin 1 for heating, plasticization, cooling and finally forming uniform plastic particles. Among them, the volume of the cavity of the storage bin 1 is large enough to store a large amount of chemical fiber material, so that even if the shredder 2 at the front end or the granulator 3 at the rear end fluctuates in the processing speed in a short time, the storage bin 1 can also serve as a buffer to ensure the continuity of material supply, avoid production interruption, and ensure the smooth operation of the production line.

[0077] See also Figure 5 In this embodiment, the granulation production line further includes a first conveyor belt 4 and a second conveyor belt 5. Since the outlet of the shredder 2 is below the feed port 111 of the storage bin 1, the first conveyor belt 4 is arranged between the shredder 2 and the storage bin 1, and the chemical fiber shreds from the shredder 2 are sent to the feed port 111 of the storage bin 1 through the first conveyor belt 4. Since the discharge port 112 of the storage bin 1 is below the inlet of the pelletizer 3, the second conveyor belt 5 is arranged between the storage bin 1 and the pelletizer 3, and the chemical fiber materials from the discharge port 112 of the storage bin 1 are sent to the pelletizer 3 by the second conveyor belt 5.

[0078] It should be noted that although the above embodiments have been described in this article, this does not limit the scope of patent protection of the utility model. Therefore, based on the innovative concept of the utility model, changes and modifications to the embodiments described in this article, or equivalent structural or equivalent process changes made using the contents of the utility model specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields are all included in the scope of protection of the utility model patent.

Claims

1. A storage silo, characterized in that: It includes a shell and a spiral conveying device, the interior of the shell is provided with a cavity, the cavity is provided with a feed port and a discharge port, the spiral conveying device includes a first spiral conveying mechanism and a second spiral conveying mechanism, the first spiral conveying mechanism includes a horizontal first rotating shaft, the first rotating shaft is provided with a first spiral blade, the second spiral conveying mechanism includes a horizontal second rotating shaft, the second rotating shaft is provided with a second spiral blade, the first rotating shaft and the second rotating shaft are respectively arranged in the cavity, the second rotating shaft is located above the first rotating shaft, the first rotating shaft extends to the discharge port, the first spiral conveying mechanism is used to convey chemical fiber materials to the discharge port along a first direction, the second spiral conveying mechanism is used to convey chemical fiber materials along a second direction, the first direction is opposite to the second direction.

2. The storage bin according to claim 1, characterized in that: The first spiral blade includes a first forward spiral blade and a first reverse spiral blade, the rotation direction of the first forward spiral blade is opposite to the rotation direction of the first reverse spiral blade, the first forward spiral blade is used to transport the chemical fiber material to the discharge port along a first direction, the first reverse spiral blade is located at the discharge port, and the first reverse spiral blade is used to transport the chemical fiber material along a second direction to prevent the chemical fiber material from blocking the discharge port.

3. The storage bin according to claim 2, characterized in that: The first reverse spiral blade is one piece or half a piece.

4. The storage bin according to claim 2, characterized in that: The discharge port is located at the end of the first forward spiral blade and below the first reverse spiral blade.

5. The storage bin according to claim 1, characterized in that: The second spiral blade includes a second forward spiral blade and a second reverse spiral blade, the rotation direction of the second forward spiral blade is opposite to the rotation direction of the second reverse spiral blade, the second forward spiral blade is used to transport the chemical fiber material along the second direction, and the second reverse spiral blade is provided in the direction of the second forward spiral away from the discharge port, and the second reverse spiral blade is used to transport the chemical fiber material along the first direction.

6. The storage bin according to claim 1, characterized in that: The first screw conveying mechanism also includes a first motor, which is connected to the first rotating shaft. The second screw conveying mechanism also includes a second motor, which is connected to the second rotating shaft. The first motor drives the first rotating shaft in a rotation direction that is consistent with the second motor driving the second rotating shaft, and the rotation speed of the first motor is greater than the rotation speed of the second motor.

7. The storage bin according to claim 6, characterized in that: An outer diameter of the first spiral blade is greater than an outer diameter of the second spiral blade.

8. The storage bin according to any one of claims 1 to 7, characterized in that: There are two discharge ports and they are arranged on the left and right. There are two first screw conveying mechanisms and two second screw conveying mechanisms. The first first screw conveying mechanism and the first second screw conveying mechanism form a first screw conveying unit, and the second first screw conveying mechanism and the second second screw conveying mechanism form a second screw conveying unit. The first screw conveying unit and the second screw conveying unit are arranged on the left and right and correspond to one discharge port respectively. A triangular partition is provided between the first screw conveying unit and the second screw conveying unit.

9. The storage bin according to claim 8, characterized in that: The second rotating shaft is located obliquely above the first rotating shaft, and the two second screw conveying mechanisms are located between the two first screw conveying mechanisms.

10. A granulation production line, characterized in that: It includes a shredder, a storage bin and a pelletizer, wherein the storage bin is arranged between the shredder and the pelletizer, the storage bin is the storage bin as described in any one of claims 1 to 9, the upper opening of the cavity of the storage bin is formed with a feed port, the feed port of the storage bin receives the chemical fiber material shredded by the shredder, the discharge port of the storage bin is located at the lower part of the shell, and the feed port of the pelletizer receives the chemical fiber material transported by the storage bin.

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