A drying device for continuous processing of plastic particles

Abstract

The utility model relates to the technical field of plastic particle drying, and provides a drying device for continuous processing of plastic particles, which comprises a barrel and a filter screen, the outer wall bottom of the barrel is fixedly connected with a hopper, the outer wall top of the barrel is fixedly connected with a barrel cover, the outer wall of the hopper is provided with a dust removal mechanism, the outer wall of the barrel is provided with a heat insulation mechanism, the dust removal mechanism comprises a first fixed ring, the outer wall of the first fixed ring is fixedly connected to the outer wall of the hopper, the outer wall of the first fixed ring is fixedly connected with a rubber pad, and the outer wall of the rubber pad is fixedly connected with a connecting ring. The utility model provides a connecting ring fixed pneumatic vibrator, which vibrates and cleans the accumulated dust, is connected through a supporting column and a gasket, facilitates the disassembly of the filter screen, the rubber sleeve buffers the longitudinal vibration of the filter screen, the rubber pad buffers the horizontal vibration, the empty bin and the flow guide groove guide the movement of hot air along the edge of the filter screen, prevent the filter screen from accumulating dust and the local temperature from being too high, and affect drying.

Description

Technical Field

[0001] This utility model relates to the field of plastic granule drying technology, and in particular to a drying device for continuous processing of plastic granules. Background Technology

[0002] Drying plastic granules is a crucial step before continuous processing. Hygroscopic granules absorb water during storage. If they are directly introduced into the high-temperature process, the moisture will vaporize and form bubbles, leading to processing interruptions and equipment damage, while also reducing mechanical properties. The drying device for continuous processing of plastic granules is a core pretreatment equipment adapted to continuous production. It has a feeding hopper and conveying components to send the granules to the drying chamber. The humidity is controlled by hot air and infrared heating, combined with a dehumidification structure. Sensors adjust parameters in real time to ensure that the moisture content meets the standard. After drying, the granules are directly sent to the processing equipment.

[0003] A search revealed Chinese Patent Publication No. CN217621617U, which discloses a drying device for continuous processing of plastic granules. The device includes a drying chamber with an exhaust pipe connected to the top. A feed pipe is installed on one side of the top of the drying chamber, with a bearing at one end. A rotating cylinder is mounted on the bearing, and a first gearbox is connected to one end of the rotating cylinder. A first motor is installed on one side of the first gearbox. Several first drying devices are installed on one side of the interior of the drying chamber, and several second drying devices are installed on the other side. A hot air box is located at the bottom of the drying chamber, with a base at its bottom. Foot-brake rollers are installed at the four corners of the base. This device enables continuous processing of plastic granules, allowing for more uniform heating and rapid evaporation of moisture, thus improving drying efficiency and saving time. It also features automatic feeding, high flexibility, and simple and convenient operation. However, in actual use, the above-mentioned device has the problem of uneven heat dissipation and excessively high local temperature due to dust accumulation on the filter screen. To solve this problem, a drying device for continuous processing of plastic granules is proposed. Utility Model Content

[0004] To overcome the above-mentioned defects, embodiments of this utility model provide a drying device for continuous processing of plastic granules, which solves the technical problem in the related art of uneven heat dissipation and excessively high local temperature caused by dust accumulation on the filter screen.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a drying device for continuous processing of plastic granules, comprising a material cylinder and a filter screen, wherein a conical hopper is fixedly connected to the bottom of the outer wall of the material cylinder, a bucket lid is fixedly connected to the top of the outer wall of the material cylinder, a dust removal mechanism is provided on the outer wall of the conical hopper, and a heat insulation mechanism is provided on the outer wall of the material cylinder. The dust removal mechanism includes a first fixed ring, the outer wall of which is fixedly connected to the outer wall of the cone, a rubber pad is fixedly connected to the outer wall of the first fixed ring, a connecting ring is fixedly connected to the outer wall of the rubber pad, the outer wall of the connecting ring has multiple threaded holes, multiple pneumatic vibrators are fixedly connected to the top of the outer wall of the connecting ring, and two screws are threadedly connected to the outer wall of each of the multiple pneumatic vibrators. The outer wall of the connecting ring is provided with a shock-absorbing component, and the outer wall of the cone is provided with a flow guiding component.

[0006] As a further description of the above technical solution: The heat insulation mechanism includes a sealing gasket, the outer wall of which is fixedly connected to the bottom of the outer wall of the bucket lid, a corrugated heat insulation layer is fixedly connected to the outer wall of the sealing gasket, and elastic cotton is fixedly connected to the outer wall of the corrugated heat insulation layer.

[0007] As a further description of the above technical solution: The insulation mechanism also includes a honeycomb panel, the outer wall of which is fixedly connected to the outer wall of the elastic cotton, an aluminum foil is fixedly connected to the outer wall of the honeycomb panel, and multiple elastic bands are fixedly connected to the outer wall of the aluminum foil.

[0008] As a further description of the above technical solution: The shock-absorbing component includes multiple rubber sleeves, the outer walls of which are fixedly connected to the bottom of the outer wall of the connecting ring, the outer walls of which are fixedly connected to support columns, and the outer walls of which are fixedly connected to the top of the outer wall of the washer.

[0009] As a further description of the above technical solution: The flow guiding assembly includes a second fixing ring, the outer wall of which is fixedly connected to the outer wall of the cone, an empty chamber is fixedly connected to the outer wall of the second fixing ring, and a flow guiding groove is fixedly connected to the outer wall of the empty chamber.

[0010] As a further description of the above technical solution: The outer wall of the filter screen is fixedly connected to the bottom of the outer wall of the connecting ring, and the outer wall of the washer is fixedly connected to the top of the outer wall of the first fixing ring.

[0011] As a further description of the above technical solution: The outer wall of the sealing gasket is fixedly connected to the inner wall of the cylinder, and the outer wall of the aluminum foil is fixedly connected to the inner wall of the cylinder.

[0012] As a further description of the above technical solution: An air outlet is connected to the top of the outer wall of the barrel lid, and a viewing window is fixedly connected to the outer wall of the material cylinder.

[0013] As a further description of the above technical solution: The outer wall of the cone is connected to a base, and the outer wall of the cone is also connected to an air duct.

[0014] As a further description of the above technical solution: An electrical control box is fixedly connected to the outer wall of the duct, and a fan is connected to the outer wall of the duct.

[0015] The beneficial effects of this utility model are as follows: In this invention, a filter screen is fixed by a connecting ring, and a pneumatic vibrator is fixed on the connecting ring. The vibrator can clean the dust accumulated on the filter screen by vibration. The connecting ring is connected by a support column and a washer, which facilitates the disassembly of the filter screen. The longitudinal vibration of the filter screen is buffered by a rubber sleeve, and the horizontal vibration of the filter screen is buffered by a rubber pad. Furthermore, the hot air is guided along the edge of the filter screen by the empty chamber and the guide channel, which prevents dust accumulation on the filter screen and excessive local temperature, thus affecting the drying effect.

[0016] In this invention, longitudinal sealing is achieved by a sealing gasket, the corrugated insulation layer absorbs heat and rises to the hot air temperature, the honeycomb panel reduces air convection channels and blocks heat conduction, the elastic cotton eliminates thermal bridges and prevents heat leakage, the aluminum foil reflects the radiant heat inside and outside to achieve heat isolation, and the elastic band prevents the insulation layer from being squeezed due to rigid fixation, so as to achieve the temperature insulation of the barrel and prevent external heat from affecting the barrel wall temperature, thereby affecting the drying effect of the plastic particles in contact with the barrel wall. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0018] Figure 1 This is a perspective view of a drying device for continuous processing of plastic granules proposed in this utility model; Figure 2 This is a perspective view of a drying device for continuous processing of plastic granules proposed in this utility model; Figure 3 This is a split view of the conical hopper of a drying device for continuous processing of plastic granules proposed in this utility model; Figure 4 This is a cross-sectional view of the empty chamber of a drying device for continuous processing of plastic granules proposed in this utility model. Figure 5 This is a split view of the material cylinder of a drying device for continuous processing of plastic granules proposed in this utility model.

[0019] In the picture: 1. Material cylinder; 2. Conical hopper; 3. Dust removal mechanism; 301. First fixing ring; 302. Rubber pad; 303. Connecting ring; 304. Shock absorption assembly; 3041. Rubber sleeve; 3042. Support column; 3043. Washer; 305. Threaded hole; 306. Pneumatic vibrator; 307. Screw; 308. Flow guide assembly; 3081. Second fixing ring; 3082. Empty chamber; 3083. Flow guide groove; 4. Thermal insulation mechanism; 401. Sealing gasket; 402. Corrugated insulation layer; 403. Elastic cotton; 404. Honeycomb panel; 405. Aluminum foil; 406. Elastic band; 5. Filter screen; 6. Bucket lid; 7. Air outlet; 8. Viewing window; 9. Air duct; 10. Control box; 11. Fan; 12. Base. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0021] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0022] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] Reference Figures 1-4 An embodiment of this utility model is provided: a drying device for continuous processing of plastic granules, including a material cylinder 1 and a filter screen 5. A cone hopper 2 is fixedly connected to the bottom of the outer wall of the material cylinder 1, and a bucket cover 6 is fixedly connected to the top of the outer wall of the material cylinder 1. A dust removal mechanism 3 is provided on the outer wall of the cone hopper 2, and a heat insulation mechanism 4 is provided on the outer wall of the material cylinder 1. The dust removal mechanism 3 includes a first fixed ring 301, the outer wall of which is fixedly connected to the outer wall of the cone hopper 2. A rubber pad 302 is fixedly connected to the outer wall of the first fixed ring 301, the main function of which is to buffer the horizontal vibration of the filter screen 5. A connecting ring 303 is fixedly connected to the outer wall of the rubber pad 302, the main function of which is to fix the filter screen 5 and drive it to vibrate, cleaning the dust on the filter screen 5. The outer wall of the connecting ring 303 has multiple threaded holes 305. Multiple pneumatic vibrators 306 are fixedly connected to the top of the outer wall of the connecting ring 303, the main function of which is to drive the vibration of the filter screen 5 through vibration. Two screws 307 are threadedly connected to the outer wall of each of the multiple pneumatic vibrators 306. A damping component 304 is provided on the outer wall of the connecting ring 303. The damping component 304 includes multiple rubber sleeves 3041, the main function of which is to buffer the longitudinal vibration of the filter screen 5 and prevent the filter screen 5 from vibrating due to the vibration of the filter screen 5. Vibration affects the drying effect. The outer walls of multiple rubber sleeves 3041 are fixedly connected to the bottom of the outer wall of the connecting ring 303. The outer walls of multiple rubber sleeves 3041 are fixedly connected to support columns 3042, whose main function is to enable the detachable filter screen 5. The outer walls of multiple support columns 3042 are fixedly connected to the top of the outer wall of the gasket 3043. The outer wall of the cone hopper 2 is provided with a flow guiding component 308. The flow guiding component 308 includes a second fixing ring 3081, whose main function is to fix the empty chamber 3082. The outer wall of the second fixing ring 3081 is fixedly connected to the outer wall of the cone hopper 2. The outer wall of the second fixing ring 3081 is fixedly connected to the empty chamber 3082, whose main function is to guide hot air into the flow guiding groove 3083. The outer wall of the empty chamber 3082 is fixedly connected to the flow guiding groove 3083, whose main function is to guide hot air along the edge of the filter screen 5 to prevent dust accumulation and excessive local temperature in the filter screen 5. Specifically, the filter screen 5 is fixed by a connecting ring 303. Multiple pneumatic vibrators 306 are threaded onto the top of the outer wall of the connecting ring 303 via multiple screws 307. These vibrators drive the filter screen 5 to vibrate and clean accumulated dust. The bottom of the connecting ring 303 has multiple holes with a diameter larger than the support column 3042. Rubber sleeves 3041 are fixed inside these holes. The connecting ring 303 is fixed to the washer 3043 by multiple support columns 3042, allowing for the removal of the filter screen 5. The rubber sleeves 3041 buffer the longitudinal vibration of the filter screen 5, preventing the vibration of the filter screen 5 from affecting the drying effect. Simultaneously, the connecting... The outer edge of ring 303 is fixed to the first fixing ring 301 by rubber pad 302. Rubber pad 302 buffers the horizontal vibration of filter screen 5. At the same time, empty chamber 3082 is fixed between cone 2 and filter screen 5 by second fixing ring 3081. The side opening of empty chamber 3082 is connected to ventilation pipe 9. Hot air enters into empty chamber 3082 from ventilation pipe 9. The side of empty chamber 3082 near filter screen 5 has an opening for fixing guide groove 3083. Hot air moves along the edge of filter screen 5 after being guided by empty chamber 3082 and guide groove 3083, preventing dust accumulation and excessive local temperature of filter screen 5.

[0027] Reference Figures 1-5 The present invention provides an embodiment of the following: The heat insulation mechanism 4 includes a sealing gasket 401, the main function of which is to prevent heat from being transferred longitudinally along the bucket lid 6. The outer wall of the sealing gasket 401 is fixedly connected to the bottom of the outer wall of the bucket lid 6. A corrugated heat insulation layer 402 is fixedly connected to the outer wall of the sealing gasket 401. Its main function is to reach the temperature of the hot air after absorbing heat, and to prevent the plastic particles from drying insufficiently when in contact with it. An elastic cotton 403 is fixedly connected to the outer wall of the corrugated heat insulation layer 402. Its main function is to eliminate thermal bridges in the gaps and prevent heat from leaking out from the splice. The heat insulation mechanism 4 also includes a honeycomb plate 404. Its main function is to reduce the air convection channels through the honeycomb structure and to block heat conduction through the internal aerogel units. The outer wall of the honeycomb plate 404 is fixedly connected to the outer wall of the elastic cotton 403. An aluminum foil 405 is fixedly connected to the outer wall of the honeycomb plate 404. Its main function is to reflect external and internal heat radiation. Multiple elastic bands 406 are fixedly connected to the outer wall of the aluminum foil 405. Their main function is to expand and contract synchronously with the thermal expansion and contraction of the bucket body, and to avoid the compression of the heat insulation layer due to rigid fixation. Specifically, a sealing gasket 401 is used to seal between the lid 6 and the barrel 1 to prevent heat from being transferred longitudinally along the lid 6. Multiple heat insulation structures are fixed inside the barrel 1. The corrugated insulation layer 402 reaches the temperature of hot air after absorbing heat, preventing insufficient drying of plastic particles when in contact with it. The honeycomb structure of the honeycomb plate 404 reduces air convection channels, and the internal aerogel units block heat conduction. Elastic cotton 403 is fixed between the corrugated insulation layer 402 and the honeycomb plate 404 to eliminate thermal bridges in the gaps and prevent heat from leaking out from the joints. Aluminum foil 405 is fixed on the outer wall of the honeycomb plate 404 to reflect the radiant heat from inside and outside. Multiple elastic bands 406 are fixed on the outer wall of the aluminum foil 405 to expand and contract synchronously with the thermal expansion and contraction of the barrel, avoiding compression of the insulation layer due to rigid fixation.

[0028] Reference Figures 1-3 In one embodiment of this utility model: the outer wall of the filter screen 5 is fixedly connected to the bottom of the outer wall of the connecting ring 303; the outer wall of the gasket 3043 is fixedly connected to the top of the outer wall of the first fixing ring 301; the outer wall of the sealing gasket 401 is fixedly connected to the inner wall of the material cylinder 1; the outer wall of the aluminum foil 405 is fixedly connected to the inner wall of the material cylinder 1; the top of the outer wall of the barrel cover 6 is connected to the air outlet 7, whose main function is to discharge hot air with water vapor; the outer wall of the material cylinder 1 is fixedly connected to the viewing window 8, whose main function is to observe the internal drying effect; the outer wall of the cone hopper 2 is connected to the base 12; the outer wall of the cone hopper 2 is connected to the air duct 9, whose main function is to send hot air from the cone hopper 2 into the material cylinder 1; the outer wall of the air duct 9 is fixedly connected to the control box 10, the model of the control box 10 is NXJ-302518; the outer wall of the air duct 9 is connected to the fan 11, whose main function is to draw external air into the interior for heating; Specifically, the fan 11 draws in external air and heats it, then delivers it to the cylinder 1 through the air duct 9 to dry the plastic granules. The hot air with moisture is discharged from the air outlet 7 above the lid 6. At the same time, a viewing window 8 is fixed on the outer wall of the cylinder 1 to observe the drying effect inside. After the granules are dried, they are discharged from the base 12. The whole process is controlled by the control box 10.

[0029] Working principle: The filter screen 5 is fixed by the connecting ring 303. Multiple pneumatic vibrators 306 are fixed to the top of the connecting ring 303 by screws 307. The vibrators drive the filter screen 5 to vibrate and clean the accumulated dust. The connecting ring 303 is fixed to the washer 3043 by multiple support columns 3042, which facilitates the disassembly of the filter screen 5. At the same time, a rubber sleeve 3041 is fixed between the support column 3042 and the connecting ring 303 to buffer the longitudinal vibration of the filter screen 5. A rubber pad 302 is fixed to the outer edge of the connecting ring 303 to buffer the horizontal vibration of the filter screen 5. Under the guidance of the empty chamber 3082 and the guide channel 3083, the hot air moves along the edge of the filter screen 5 to prevent dust accumulation and excessive local temperature of the filter screen 5. Furthermore, a sealing gasket 401 is fixed between the lid 6 and the barrel 1 to achieve a seal, preventing heat from being transferred longitudinally along the lid 6. A heat insulation mechanism 4 is fixed on the barrel wall. First, the corrugated insulation layer 402 absorbs heat and rises to the hot air temperature to prevent insufficient drying when the plastic particles come into contact with it. Then, the honeycomb structure of the honeycomb plate 404 reduces the air convection channels, and the internal aerogel unit blocks heat conduction. Elastic cotton 403 fills the gaps to eliminate thermal bridges and prevent heat from leaking out from the joints. The aluminum foil 405 reflects the radiant heat inside and outside to achieve heat isolation. The elastic band 406 is fixed to expand and contract synchronously with the barrel body due to thermal expansion and contraction, avoiding the compression of the heat insulation layer caused by rigid fixation.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A drying apparatus for continuous processing of plastic granules, comprising a material cylinder (1) and a filter screen (5), characterized in that: A cone hopper (2) is fixedly connected to the bottom of the outer wall of the material cylinder (1), a bucket cover (6) is fixedly connected to the top of the outer wall of the material cylinder (1), a dust removal mechanism (3) is provided on the outer wall of the cone hopper (2), and a heat insulation mechanism (4) is provided on the outer wall of the material cylinder (1). The dust removal mechanism (3) includes a first fixed ring (301), the outer wall of the first fixed ring (301) is fixedly connected to the outer wall of the cone (2), a rubber pad (302) is fixedly connected to the outer wall of the first fixed ring (301), a connecting ring (303) is fixedly connected to the outer wall of the rubber pad (302), a plurality of threaded holes (305) are opened on the outer wall of the connecting ring (303), a plurality of pneumatic vibrators (306) are fixedly connected to the top of the outer wall of the connecting ring (303), and two screws (307) are threadedly connected to the outer wall of each of the plurality of pneumatic vibrators (306). A damping component (304) is provided on the outer wall of the connecting ring (303), and a flow guiding component (308) is provided on the outer wall of the cone (2).

2. The drying apparatus for continuous processing of plastic granules according to claim 1, characterized in that: The heat insulation mechanism (4) includes a sealing gasket (401), the outer wall of which is fixedly connected to the bottom of the outer wall of the bucket lid (6), a corrugated heat insulation layer (402) is fixedly connected to the outer wall of the sealing gasket (401), and an elastic cotton (403) is fixedly connected to the outer wall of the corrugated heat insulation layer (402).

3. The drying apparatus for continuous processing of plastic granules according to claim 2, characterized in that: The insulation mechanism (4) further includes a honeycomb panel (404), the outer wall of which is fixedly connected to the outer wall of the elastic cotton (403), and an aluminum foil (405) is fixedly connected to the outer wall of the honeycomb panel (404), and a plurality of elastic bands (406) are fixedly connected to the outer wall of the aluminum foil (405).

4. The drying apparatus for continuous processing of plastic granules according to claim 1, characterized in that: The shock-absorbing component (304) includes multiple rubber sleeves (3041), the outer walls of the multiple rubber sleeves (3041) are fixedly connected to the bottom of the outer wall of the connecting ring (303), the outer walls of the multiple rubber sleeves (3041) are fixedly connected to support columns (3042), and the outer walls of the multiple support columns (3042) are fixedly connected to the top of the outer wall of the washer (3043).

5. The drying apparatus for continuous processing of plastic granules according to claim 1, characterized in that: The flow guiding component (308) includes a second fixing ring (3081), the outer wall of the second fixing ring (3081) is fixedly connected to the outer wall of the cone (2), the outer wall of the second fixing ring (3081) is fixedly connected to an empty chamber (3082), and the outer wall of the empty chamber (3082) is fixedly connected to a flow guiding groove (3083).

6. The drying apparatus for continuous processing of plastic granules according to claim 4, characterized in that: The outer wall of the filter (5) is fixedly connected to the bottom of the outer wall of the connecting ring (303), and the outer wall of the washer (3043) is fixedly connected to the top of the outer wall of the first fixing ring (301).

7. A drying apparatus for continuous processing of plastic granules according to claim 3, characterized in that: The outer wall of the sealing gasket (401) is fixedly connected to the inner wall of the barrel (1), and the outer wall of the aluminum foil (405) is fixedly connected to the inner wall of the barrel (1).

8. A drying apparatus for continuous processing of plastic granules according to claim 1, characterized in that: The top of the outer wall of the barrel lid (6) is connected to an air outlet (7), and the outer wall of the material cylinder (1) is fixedly connected to a viewing window (8).

9. A drying apparatus for continuous processing of plastic granules according to claim 1, characterized in that: The outer wall of the cone (2) is connected to the base (12), and the outer wall of the cone (2) is connected to the air duct (9).

10. A drying apparatus for continuous processing of plastic granules according to claim 9, characterized in that: The outer wall of the air duct (9) is fixedly connected to the electrical control box (10), and the outer wall of the air duct (9) is connected to the fan (11).

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