CN210892511U - Dehumidification drying system of granular plastics - Google Patents
Dehumidification drying system of granular plastics Download PDFInfo
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- CN210892511U CN210892511U CN201921346636.6U CN201921346636U CN210892511U CN 210892511 U CN210892511 U CN 210892511U CN 201921346636 U CN201921346636 U CN 201921346636U CN 210892511 U CN210892511 U CN 210892511U
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Abstract
The utility model discloses a dehumidification drying system of granular plastics, which comprises a drying box, a stirring unit, a dehumidifier and an electric heater; a drying oven: the interior of the drying box is hollow, the upper surface and the bottom of the drying box are respectively provided with a feed hopper and a discharge hopper which are communicated with the inner cavity of the drying box, the side surface of the inner wall of the drying box is sequentially provided with a pressure sensor and a humidity sensor, and the side surface of the drying box is provided with a PLC (programmable logic controller); a stirring unit: the stirring unit is arranged in an inner cavity of the drying box and comprises a rotating shaft and blades, the upper surface in the drying box is rotatably connected with the rotating shaft through a bearing, and the blades are arranged on the circumferential surface of the rotating shaft in an array manner; dehumidifier: the dehumidifier is arranged at the lower part of the side surface of the drying box; an electric heater: the electric heater is arranged at the upper part of the side surface of the drying box; this dehumidification drying system of granular plastics can stir plastic granules in the drying process, makes plastic granules be heated evenly to improve drying efficiency, and can intelligent control.
Description
Technical Field
The utility model relates to a dry dehumidification equipment technical field of plastics specifically is a granular plastic's dehumidification drying system.
Background
In the processing industry of plastics, the phenomena of shrinkage, silver streaks, bubbles, cracks, flow marks, poor transparency and the like of products occur, and the main reason of the poor quality is that the plastics are not fully dried before being molded, so a large amount of hot air needs to be introduced into a dryer so as to evaporate water and dry materials, the hot air with water vapor in a drying box is cooled by a cooling system, the water vapor is condensed into water drops, the water in air flow is removed by a molecular sieve, then the air flow enters the dryer after being heated by a heating system, and the circulation is carried out so as to continuously dry the materials.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide a dehumidification drying system of granular plastics, can stir plastic granules in the drying process, make plastic granules be heated evenly to improve drying efficiency, and can intelligent control, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a dehumidification drying system for granular plastics comprises a drying box, a stirring unit, a dehumidifier and an electric heater;
a drying oven: the interior of the drying box is hollow, a feed hopper and a discharge hopper which are communicated with the inner cavity of the drying box are respectively arranged on the upper surface and the bottom of the drying box, a pressure sensor and a humidity sensor are sequentially arranged on the side surface of the inner wall of the drying box, and a PLC (programmable logic controller) is arranged on the side surface of the drying box;
a stirring unit: the stirring unit is arranged in an inner cavity of the drying box and comprises a rotating shaft and blades, the upper surface of the inside of the drying box is rotatably connected with the rotating shaft through a bearing, and the blades are arranged on the circumferential surface of the rotating shaft in an array manner;
dehumidifier: the dehumidifier is arranged at the lower part of the side surface of the drying box;
an electric heater: the electric heater is arranged at the upper part of the side surface of the drying box;
wherein: the dehumidifier is characterized by further comprising three connecting pipes, an inlet of the dehumidifier is communicated with the lower portion of the inner cavity of the drying box through the connecting pipes, an outlet of the dehumidifier is communicated with an inlet of the heater through the connecting pipes, an outlet of the heater is communicated with the upper portion of the inner cavity of the drying box through the connecting pipes, an input end of the PLC is electrically connected with an output end of an external power supply, an output end of the PLC is electrically connected with input ends of the dehumidifier and the electric heater respectively, and the PLC is electrically connected with the pressure sensor and the humidity sensor in a bidirectional mode respectively.
Further, still include drive unit, drive unit includes servo motor, fixed plate, worm wheel and worm, the upper end of pivot and the lower fixed surface of worm wheel are connected, the upper surface at the drying cabinet is established to the fixed plate, the side of fixed plate is rotated through the bearing and is connected with the worm, the opposite side of fixed plate is equipped with servo motor, servo motor's output shaft and the tip fixed connection of worm, worm and worm wheel intermeshing, PLC controller's output is connected to servo motor's input electricity, rotates through servo motor, can drive the worm and rotate to drive the worm wheel and rotate, drive the pivot again and rotate, thereby stir plastic granules, make plastic granules be heated evenly, improve dehumidification efficiency.
Further, still include the landing leg, the lower surface four corners of drying cabinet all is equipped with the landing leg, supports whole drying equipment through the landing leg.
Further, still include the solenoid valve, all be equipped with the solenoid valve on feeder hopper and the play hopper, the output of PLC controller is connected to the input electricity of solenoid valve, is convenient for automatic control feeding and ejection of compact through the solenoid valve.
Further, still include the sealing ring, the upper surface of drying cabinet is located the junction of pivot and drying cabinet and is equipped with the sealing ring, can seal the joint gap between pivot and the drying cabinet through the sealing ring, improves dehumidification efficiency.
Compared with the prior art, the beneficial effects of the utility model are that: the dehumidification drying system of the granular plastic has the following advantages:
1. through feeder hopper and the convenient feeding of play hopper and the ejection of compact, can detect the inside pressure of drying cabinet through pressure sensor to be convenient for judge the inside reinforced condition, can judge the dehumidification condition of the inside plastic granules of drying cabinet through humidity transducer.
2. Rotate through servo motor, can drive the worm and rotate to drive the worm wheel and rotate, drive the pivot again and rotate, and then pivot and blade can stir the inside plastic granules of drying cabinet, make plastic granules be heated evenly, improve dehumidification efficiency.
3. Support whole drying equipment through the landing leg, be convenient for automatic control feeding and the ejection of compact through the solenoid valve, can seal the joint gap between pivot and the drying cabinet through the sealing ring, improve dehumidification efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the internal structure of the present invention.
In the figure: the device comprises a drying box 1, a PLC 2, support legs 3, a dehumidifier 4, a connecting pipe 5, an electric heater 6, a driving unit 7, a servo motor 71, a fixing plate 72, a worm gear 73, a worm 74, a feed hopper 8, an electromagnetic valve 9, a sealing ring 10, a discharge hopper 11, a stirring unit 12, blades 121, a rotating shaft 122, a pressure sensor 13 and a humidity sensor 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a dehumidification drying system of granular plastics comprises a drying box 1, a stirring unit 12, a dehumidifier 4 and an electric heater 6;
drying oven 1: the interior of the drying box 1 is hollow, the upper surface and the bottom of the drying box 1 are respectively provided with a feed hopper 8 and a discharge hopper 11 which are communicated with the inner cavity of the drying box 1, the side surface of the inner wall of the drying box 1 is sequentially provided with a pressure sensor 13 and a humidity sensor 14, the side surface of the drying box 1 is provided with a PLC (programmable logic controller) 2, feeding and discharging are facilitated through the feed hopper 8 and the discharge hopper 11, the pressure in the drying box 1 can be detected through the pressure sensor 13, so that the internal feeding condition can be judged conveniently, and the dehumidification condition of plastic particles in the drying box 1 can be judged through the humidity sensor 14;
the stirring unit 12: the stirring unit 12 is arranged in the inner cavity of the drying oven 1, the stirring unit 12 comprises a rotating shaft 122 and blades 121, the rotating shaft 122 is rotatably connected to the upper surface inside the drying oven 1 through a bearing, the blades 121 are arranged on the circumferential surface array of the rotating shaft 122, and the plastic particles inside the drying oven 1 can be conveniently stirred through the rotating shaft 122 and the blades 121;
and (4) dehumidifier: the dehumidifier 4 is arranged at the lower part of the side surface of the drying box 1, and moisture in the gas can be removed through the dehumidifier 4;
the electric heater 6: the electric heater 6 is arranged at the upper part of the side surface of the drying box 1, and the gas can be heated by the electric heater 6;
wherein: the dehumidifier drying box comprises a drying box body and is characterized by further comprising three connecting pipes 5, an inlet of a dehumidifier 4 is communicated with the lower portion of an inner cavity of the drying box body through the connecting pipes 5, an outlet of the dehumidifier 4 is communicated with an inlet of a heater 6 through the connecting pipes 5, an outlet of the heater 6 is communicated with the upper portion of the inner cavity of the drying box body 1 through the connecting pipes 5, an input end of a PLC 2 is electrically connected with an output end of an external power supply, an output end of the PLC 2 is electrically connected with input ends of the dehumidifier 4 and the electric heater 6 respectively, and the PLC 2 is electrically connected with a pressure.
Wherein, still include drive unit 7, drive unit 7 includes servo motor 71, fixed plate 72, worm wheel 73 and worm 74, the upper end of pivot 122 and the lower surface fixed connection of worm wheel 73, fixed plate 72 is established at the upper surface of drying cabinet 1, the side of fixed plate 72 is connected with worm 74 through the bearing rotation, the opposite side of fixed plate 72 is equipped with servo motor 71, servo motor 71's output shaft and the tip fixed connection of worm 74, worm 74 and worm wheel 73 intermeshing, the output of PLC controller 2 is connected to servo motor 71's input electricity, rotate through servo motor 71, can drive worm 74 and rotate, thereby drive worm wheel 73 and rotate, it rotates to drive pivot 122 again, thereby stir the plastic granules, make the plastic granules be heated evenly, improve dehumidification efficiency.
Wherein, still include landing leg 3, the lower surface four corners of drying cabinet 1 all is equipped with landing leg 3, supports whole drying equipment through landing leg 3.
Wherein, still include solenoid valve 9, all be equipped with solenoid valve 9 on feeder hopper 8 and the play hopper 11, the output of PLC controller 2 is connected to solenoid valve 9's input electricity, is convenient for automatic control feeding and ejection of compact through solenoid valve 9.
Wherein, still including sealing ring 10, the upper surface of drying cabinet 1 is located the junction of pivot 122 and drying cabinet 1 and is equipped with sealing ring 10, can seal the joint gap between pivot 122 and the drying cabinet 1 through sealing ring 10, improves dehumidification efficiency.
When in use: an external power supply is connected, the PLC 2 controls the electromagnetic valve 9 to be opened, plastic particles are placed into the drying box 1 from the feed hopper 8, after the pressure sensor 13 judges that the quantity of the plastic particles in the drying box 1 reaches a certain quantity, the PLC 2 controls the electromagnetic valve 9 to be closed, the PLC 2 controls the electric heater 6, the dehumidifier 4 and the servo motor 71 to work simultaneously, the servo motor 71 rotates to drive the worm 74 to rotate, the worm wheel 73 is driven to rotate, the rotating shaft 122 and the blades 121 stir the plastic particles, meanwhile, the dehumidifier 4 sucks air in the drying box 1 and removes moisture in the drying box, the dried gas enters the electric heater 6 to be heated, then high-temperature gas enters the drying box 1 to take away moisture contained in the plastic particles, and gas mixed with the moisture enters the dehumidifier 4 to remove the moisture, and circulating in sequence, knowing the humidity in the drying box through the humidity sensor 14, transmitting the humidity to the PLC controller 2, and controlling the electric heater 6, the dehumidifier 4 and the servo motor 71 to stop by the PLC controller 2 when the dehumidification reaches the standard, and controlling the electromagnetic valve 9 on the discharge hopper 11 to be opened to discharge plastic particles.
It should be noted that in this embodiment, the specific model of the PLC controller 2 is siemens S7-200, the servo motor 71 may be freely configured according to an actual application scenario, a single-phase series motor available from tengchi motor products ltd of eastern guan city may be selected, preferably, the rotation speed is below 21000 r, and the PLC controller 2 controls the servo motor 71, the electric heater 6, the dehumidifier 4 and the electromagnetic valve 9 to operate by a method commonly used in the prior art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A dehumidification drying system of granular plastics is characterized in that: comprises a drying box (1), a stirring unit (12), a dehumidifier (4) and an electric heater (6);
drying oven (1): the drying box (1) is hollow, a feed hopper (8) and a discharge hopper (11) which are communicated with an inner cavity of the drying box (1) are respectively arranged on the upper surface and the bottom of the drying box (1), a pressure sensor (13) and a humidity sensor (14) are sequentially arranged on the side surface of the inner wall of the drying box (1), and a PLC (programmable logic controller) is arranged on the side surface of the drying box (1);
stirring unit (12): the stirring unit (12) is arranged in an inner cavity of the drying box (1), the stirring unit (12) comprises a rotating shaft (122) and blades (121), the rotating shaft (122) is rotatably connected to the upper surface of the interior of the drying box (1) through a bearing, and the blades (121) are arranged on the circumferential surface of the rotating shaft (122) in an array manner;
dehumidifier (4): the dehumidifier (4) is arranged at the lower part of the side surface of the drying box (1);
electric heater (6): the electric heater (6) is arranged at the upper part of the side surface of the drying box (1);
wherein: the dehumidifier is characterized by further comprising three connecting pipes (5), an inlet of the dehumidifier (4) is communicated with the lower portion of an inner cavity of the drying box (1) through the connecting pipes (5), an outlet of the dehumidifier (4) is communicated with an inlet of the heater (6) through the connecting pipes (5), an outlet of the heater (6) is communicated with the upper portion of the inner cavity of the drying box (1) through the connecting pipes (5), an input end of the PLC (2) is electrically connected with an output end of an external power supply, an output end of the PLC (2) is electrically connected with input ends of the dehumidifier (4) and the electric heater (6) respectively, and the PLC (2) is electrically connected with the pressure sensor (13) and the humidity sensor (14) in a bidirectional mode respectively.
2. A granular plastic dehumidifying and drying system as claimed in claim 1, wherein: still include drive unit (7), drive unit (7) include servo motor (71), fixed plate (72), worm wheel (73) and worm (74), the lower surface fixed connection of the upper end of pivot (122) and worm wheel (73), the upper surface at drying cabinet (1) is established in fixed plate (72), the side of fixed plate (72) is rotated through the bearing and is connected with worm (74), the opposite side of fixed plate (72) is equipped with servo motor (71), the output shaft of servo motor (71) and the tip fixed connection of worm (74), worm (74) and worm wheel (73) intermeshing, the output of PLC controller (2) is connected to the input electricity of servo motor (71).
3. A granular plastic dehumidifying and drying system as claimed in claim 1, wherein: the drying oven is characterized by further comprising supporting legs (3), wherein the supporting legs (3) are arranged at four corners of the lower surface of the drying oven (1).
4. A granular plastic dehumidifying and drying system as claimed in claim 1, wherein: still include solenoid valve (9), all be equipped with solenoid valve (9) on feeder hopper (8) and play hopper (11), the output of PLC controller (2) is connected to the input electricity of solenoid valve (9).
5. A granular plastic dehumidifying and drying system as claimed in claim 1, wherein: still include sealing ring (10), the upper surface of drying cabinet (1) is located the junction of pivot (122) and drying cabinet (1) and is equipped with sealing ring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921346636.6U CN210892511U (en) | 2019-08-20 | 2019-08-20 | Dehumidification drying system of granular plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921346636.6U CN210892511U (en) | 2019-08-20 | 2019-08-20 | Dehumidification drying system of granular plastics |
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| Publication Number | Publication Date |
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| CN210892511U true CN210892511U (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921346636.6U Active CN210892511U (en) | 2019-08-20 | 2019-08-20 | Dehumidification drying system of granular plastics |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114192740A (en) * | 2021-12-13 | 2022-03-18 | 马鞍山市绿科环保科技有限公司 | Method for regenerating solid waste in moisture-preserving mold sand molding process |
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2019
- 2019-08-20 CN CN201921346636.6U patent/CN210892511U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114192740A (en) * | 2021-12-13 | 2022-03-18 | 马鞍山市绿科环保科技有限公司 | Method for regenerating solid waste in moisture-preserving mold sand molding process |
| CN114192740B (en) * | 2021-12-13 | 2023-09-08 | 马鞍山市绿科环保科技有限公司 | Method for regenerating solid waste in moisturizing sand molding process |
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