Drying device for modified plastic production

Abstract

The utility model relates to a drying device for modified plastic production, which comprises a drying cylinder, the top of the drying cylinder is connected with an exhaust passage, the peripheral side of the drying cylinder is connected with a feeding passage, the end part of the feeding passage is connected with a hot-air blower, the upper part of the drying cylinder is cylindrical, the lower part of the drying cylinder is conical, and the upper part of the drying cylinder is provided with an air inlet. The edge side of the feeding channel is tangent to the inner circumferential side of the drying cylinder. The utility model relates to the technical field of modified plastic drying. When the drying device for modified plastic production is used, the drying cylinder can be matched with an air heater, so that modified plastic is separated from water vapor when entering the inner bottom of the drying cylinder, and the situation that modified plastic particles from top to bottom are in secondary contact with the water vapor to absorb water, so that the humidity of the modified plastic particles is increased is avoided; therefore, the time required for drying is prolonged, and the drying efficiency of the modified plastic is influenced.

Description

Technical Field

[0001] This utility model relates to the technical field of drying modified plastics, and in particular to a drying device for the production of modified plastics. Background Technology

[0002] Modified plastics need to be dried to prevent air bubbles from forming during injection molding due to moisture evaporation. This is usually achieved by using hot air to evaporate the moisture.

[0003] In the prior art, CN217275427U discloses a multi-stage drying device for the production of modified plastics. This device includes a housing, a hot air blower housed within the protective shell, an air outlet pipe at the output end of the hot air blower, a first inclined plate fixedly connected to the left side wall of the housing, a first heating plate at the bottom of the first inclined plate, a second inclined plate fixedly connected to the right side wall of the housing, a second heating plate at the bottom of the second inclined plate, a storage bin fixedly connected to the right side wall of the housing, a screen housed inside a fixed frame, and two sets of electric push rods fixedly connected to the bottom of the fixed frame. In this invention, when modified plastics are added, the modified plastics undergo multi-stage drying via the first and second heating plates and the air outlet pipe, resulting in better drying of the modified plastics and preventing incomplete drying before they are transported out.

[0004] When used, this application can accelerate the drying of modified plastics through multi-stage drying, preventing incompletely dried modified plastics from being transported out. However, during the drying process, the water evaporates and flows upwards. At this time, the modified plastics transported down from above are prone to re-absorbing water vapor, which leads to the need to increase the drying time for this part of the modified plastics and affects the drying efficiency of the modified plastics. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a drying device for the production of modified plastics, so as to solve the technical problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A drying apparatus for the production of modified plastics includes a drying cylinder. The top of the drying cylinder is connected to an exhaust channel, and the outer periphery of the drying cylinder is connected to an inlet channel. A hot air blower is connected to the end of the inlet channel. The upper part of the drying cylinder is cylindrical, and the lower part of the drying cylinder is conical. The side of the inlet channel is tangent to the inner periphery of the drying cylinder. The top side of the inlet channel is connected to an inlet pipe, and the bottom end of the drying cylinder is connected to a circulation component.

[0008] In a preferred embodiment, the present invention can be further configured as follows: the circulating component includes a transfer chamber, the transfer chamber is fixedly connected to the bottom of the drying cylinder, the inner bottom side wall of the transfer chamber is inclined, a transfer channel is opened on the side of the transfer chamber, and a conveying chamber is connected to the side of the transfer chamber and located at the transfer channel.

[0009] In a preferred embodiment, the present invention can be further configured as follows: a conical groove is provided in the conveying chamber, and the groove narrows from bottom to top; an air pump is connected to the bottom of the conveying chamber, and the output end of the air pump is connected to the conical groove; a conveying pipe is connected to the top of the conveying chamber, and the top end of the conveying pipe is connected to the feed channel, and the bottom end of the conveying pipe is connected to the conical groove.

[0010] In a preferred embodiment, the present invention can be further configured such that the top of the conveying pipe is arc-shaped, and the top of the conveying pipe is connected to the side of the feed channel.

[0011] In a preferred embodiment, the present invention can be further configured such that: a discharge trough is provided at the bottom of the transfer warehouse, and a closed door is engaged in the discharge trough.

[0012] In a preferred embodiment, the present invention can be further configured such that the inner top sidewall of the drying cylinder is tapered and tapers from bottom to top.

[0013] In summary, this utility model has at least one of the following beneficial technical effects:

[0014] 1. The drying device for the production of modified plastics can, in use, separate the modified plastics from the water vapor when they enter the bottom of the drying cylinder by using a drying cylinder in conjunction with a hot air blower. This avoids the modified plastic particles from the top to the bottom coming into secondary contact with water vapor and absorbing moisture, which would increase the humidity of the modified plastic particles and thus increase the drying time and affect the drying efficiency of the modified plastics.

[0015] 2. In this drying device for the production of modified plastics, the modified plastic granules fall from the bottom of the drying cylinder into a transfer chamber during drying. The bottom side wall of the transfer chamber is inclined, so the preliminarily dried modified plastic granules are conveyed along the bottom side wall of the transfer chamber to the transfer channel and then into the conveying storage. The conveying storage allows the preliminarily dried modified plastic granules to be conveyed back into the drying chamber for secondary drying, so that the modified plastics can be dried multiple times and the modified plastics can be dried more thoroughly.

[0016] 3. The drying device for the production of modified plastics has a conical trough in the conveying chamber. The top of the conical trough is designed to be narrow. Therefore, after the modified plastic granules enter the conical trough along the transfer channel, the airflow of the air pump will blow the modified plastic from the top of the conical trough into the conveying pipe. Then, the modified plastic granules are conveyed from the conveying pipe into the feed channel for multiple drying operations, which improves the drying effect of the modified plastic granules.

[0017] 4. In this drying device for the production of modified plastics, the top of the conveying pipe is arc-shaped, which allows the airflow blown in by the air pump and the modified plastic particles to enter the feed channel along the smooth arc of the conveying pipe, thereby avoiding the obstruction of plastic particles by sharp corners in the conveying pipe, which would affect the drying cycle of the plastic particles and thus affect the drying efficiency of the plastic particles. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of a drying device for the production of modified plastics according to this utility model.

[0020] Figure 2 This is a schematic diagram of the circulation component structure of a drying device for the production of modified plastics according to this utility model.

[0021] Figure 3 This is a schematic diagram of the internal structure of the drying cylinder of a drying device for the production of modified plastics according to this utility model.

[0022] In the diagram, 1. Drying cylinder; 2. Exhaust channel; 3. Feed channel; 4. Hot air blower; 5. Feed pipe; 6. Circulation component; 7. Transfer chamber; 8. Transfer channel; 9. Conveying chamber; 10. Conical trough; 11. Air pump; 12. Conveying pipe; 13. Discharge trough; 14. Sealing door. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] Example:

[0025] Reference Figure 1 Figures and Figure 3This utility model discloses a drying device for the production of modified plastics, including a drying cylinder 1. The top of the drying cylinder 1 is connected to an exhaust channel 2, and the outer periphery of the drying cylinder 1 is connected to an inlet channel 3. The end of the inlet channel 3 is connected to a hot air blower 4. The upper part of the drying cylinder 1 is cylindrical, and the lower part of the drying cylinder 1 is conical. The side of the inlet channel 3 is tangent to the inner periphery of the drying cylinder 1. The top side of the inlet channel 3 is connected to an inlet pipe 5, and the bottom end of the drying cylinder 1 is connected to a circulation component 6.

[0026] In this embodiment, refer to Figure 1 The modified plastic granules are introduced from the feed pipe 5 and then into the feed channel 3, as per [reference needed]. Figure 3 At this time, the hot air blower 4 is started, and the modified plastic particles are blown into the drying cylinder 1 by the hot air blower 4. Since the side of the feed channel 3 is tangent to the inner circumference of the drying cylinder 1, the modified plastic particles move along the inner circumference of the drying cylinder 1. Since the lower part of the drying cylinder 1 is conical and the upper part is cylindrical, the modified plastic particles will descend in a spiral path as they move along the inner circumference of the drying cylinder 1, and dry at the same time. When they are conveyed to the bottom of the drying cylinder 1, the modified plastic particles will cause the lighter water vapor to flow upward along the center of the bottom of the drying cylinder 1, and finally be discharged from the exhaust channel 2, thereby achieving the effect of separating the modified plastic particles from the water vapor.

[0027] Because the modified plastic descends spirally along the inner circumference of the drying cylinder 1, it avoids contact between the modified plastic and the water vapor at the center of the drying cylinder 1, thus preventing secondary absorption of water vapor after contact and increasing the drying time of the modified plastic.

[0028] In a further preferred embodiment of this utility model, such as Figure 2 As shown, the circulation component 6 includes a transfer chamber 7, which is fixedly connected to the bottom of the drying cylinder 1. The inner bottom side wall of the transfer chamber 7 is inclined, and a transfer channel 8 is opened on the side of the transfer chamber 7. A conveying chamber 9 is connected to the side of the transfer chamber 7 and located at the transfer channel 8.

[0029] In this embodiment, refer to Figure 2 During the drying process, the modified plastic granules fall from the bottom of the drying cylinder 1 into the transfer chamber 7. The bottom side wall of the transfer chamber 7 is inclined, so the preliminarily dried modified plastic granules are transported along the bottom side wall of the transfer chamber 7 to the transfer channel 8, and then enter the conveying chamber 9. The conveying chamber 9 then transports the preliminarily dried modified plastic granules back into the drying chamber for secondary drying, so that the modified plastic can be dried multiple times and the modified plastic can be dried more thoroughly.

[0030] In a further preferred embodiment of this utility model, such as Figure 2 As shown, a conical groove 10 is provided inside the conveying chamber 9, and the groove narrows from bottom to top. An air pump 11 is connected to the bottom of the conveying chamber 9, and the output end of the air pump 11 is connected to the conical groove 10. A conveying pipe 12 is connected to the top of the conveying chamber 9, and the top end of the conveying pipe 12 is connected to the feed channel 3, while the bottom end of the conveying pipe 12 is connected to the conical groove 10.

[0031] In this embodiment, refer to Figure 2 A conical trough 10 is provided inside the conveying chamber 9. The top of the conical trough 10 is designed to be narrow. Therefore, after the modified plastic granules enter the conical trough 10 along the transfer channel 8, the airflow of the air pump 11 will blow the modified plastic from the top of the conical trough 10 into the conveying pipe 12. Then, the modified plastic granules are conveyed from the conveying pipe 12 into the feed channel 3 for multiple drying operations, which improves the drying effect of the modified plastic granules.

[0032] In a further preferred embodiment of this utility model, such as Figure 2 As shown, the top of the conveying pipe 12 is arc-shaped, and the top of the conveying pipe 12 is connected to the side of the feed channel 3.

[0033] In this embodiment, refer to Figure 2 The top of the conveying pipe 12 is arc-shaped, which allows the airflow blown in by the air pump 11 and the modified plastic particles to enter the feed channel 3 along the smooth arc of the conveying pipe 12. This avoids the conveying pipe 12 having sharp corners that would block the plastic particles, thereby affecting the drying cycle of the plastic particles and thus affecting the drying efficiency of the plastic particles.

[0034] In a further preferred embodiment of this utility model, such as Figure 2 As shown, the bottom of the transfer warehouse 7 is provided with a discharge trough 13, and a sealing door 14 is engaged in the discharge trough 13.

[0035] In this embodiment, refer to Figure 2 During the drying process of modified plastic granules, a humidity sensor (not shown in the figure) can be installed at the exhaust channel 2 to observe the moisture content of the exhaust air. After the exhaust air is dried, the closed door 14 at the bottom of the transfer chamber 7 is opened, and the subsequent modified plastic granules will be discharged directly from the discharge trough 13 at the bottom of the transfer chamber 7. This can promptly remove the dried modified plastic granules and prevent over-drying, which could lead to cracking and affect the subsequent use of the modified plastic granules.

[0036] In a further preferred embodiment of this utility model, such as Figure 3 As shown, the inner top sidewall of the drying cylinder 1 is tapered and tapers from bottom to top.

[0037] In this embodiment, refer to Figure 3 Because the top of the drying cylinder 1 is conical, when water vapor is transported to the top of the drying cylinder, it can be directly transported along the top side wall of the drying cylinder 1 to the exhaust channel 2 for discharge. This avoids the water vapor spreading to the surrounding area along the top side of the drying cylinder 1, which would cause the water vapor to come into contact with the modified plastic particles again, making the modified plastic wet and affecting its drying efficiency.

[0038] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A drying apparatus for the production of modified plastics, comprising a drying cylinder (1), characterized in that, The top of the drying cylinder (1) is connected to an exhaust channel (2), the outer periphery of the drying cylinder (1) is connected to an inlet channel (3), the end of the inlet channel (3) is connected to a hot air blower (4), the upper part of the drying cylinder (1) is cylindrical, the lower part of the drying cylinder (1) is conical, the side of the inlet channel (3) is tangent to the inner periphery of the drying cylinder (1), the top side of the inlet channel (3) is connected to an inlet pipe (5), and the bottom end of the drying cylinder (1) is connected to a circulation component (6).

2. The drying apparatus for producing modified plastics according to claim 1, characterized in that, The circulation component (6) includes a transfer chamber (7), which is fixedly connected to the bottom of the drying cylinder (1). The inner bottom side wall of the transfer chamber (7) is inclined, and a transfer channel (8) is opened on the side of the transfer chamber (7). A conveying chamber (9) is connected to the side of the transfer chamber (7) and located at the transfer channel (8).

3. The drying apparatus for producing modified plastics according to claim 2, characterized in that, The conveying chamber (9) has a conical groove (10) inside, which is tapered from bottom to top. An air pump (11) is connected to the bottom of the conveying chamber (9), and the output end of the air pump (11) is connected to the conical groove (10). A conveying pipe (12) is connected to the top of the conveying chamber (9), and the top end of the conveying pipe (12) is connected to the feed channel (3). The bottom end of the conveying pipe (12) is connected to the conical groove (10).

4. The drying apparatus for producing modified plastics according to claim 3, characterized in that, The top of the conveying pipe (12) is arc-shaped, and the top of the conveying pipe (12) is connected to the side of the feed channel (3).

5. A drying apparatus for producing modified plastics according to claim 4, characterized in that, The bottom of the transfer warehouse (7) is provided with a discharge trough (13), and a closed door (14) is engaged in the discharge trough (13).

6. A drying apparatus for producing modified plastics according to claim 5, characterized in that, The inner top sidewall of the drying cylinder (1) is conical and narrows from bottom to top.

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