CN111504042A - Automatic dehumidification and drying system and dehumidification and drying process for granular plastic - Google Patents
Automatic dehumidification and drying system and dehumidification and drying process for granular plastic Download PDFInfo
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- CN111504042A CN111504042A CN202010337938.8A CN202010337938A CN111504042A CN 111504042 A CN111504042 A CN 111504042A CN 202010337938 A CN202010337938 A CN 202010337938A CN 111504042 A CN111504042 A CN 111504042A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/18—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
- F26B17/20—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being horizontal or slightly inclined
- F26B17/205—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being horizontal or slightly inclined with multiple chambers, e.g. troughs, in superimposed arrangement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/06—Conditioning or physical treatment of the material to be shaped by drying
- B29B13/065—Conditioning or physical treatment of the material to be shaped by drying of powder or pellets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/16—Drying solid materials or objects by processes not involving the application of heat by contact with sorbent bodies, e.g. absorbent mould; by admixture with sorbent materials
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Drying Of Solid Materials (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention relates to an automatic dehumidification drying system and a dehumidification drying process for granular plastic, which comprise a base, and a material distribution device and a drying device which are arranged on the base, wherein the drying device comprises a horizontally arranged drying cylinder, a rotating shaft extending along the length direction of the drying cylinder is arranged in the drying cylinder, and spiral blades distributed along the length direction of the rotating shaft are arranged on the outer wall of the rotating shaft. The grooved pulley drives the material receiving groove to intermittently rotate, plastic particles are sequentially guided into different drying cylinders through the material guide plate, and meanwhile, a feeding mechanism at the feeding port of the drying cylinders is used for carrying out primary dehumidification on the plastic particles, so that the drying load of the drying device is reduced; according to the invention, the helical blades are used for conveying plastic particles, the plastic particles enter the next group of drying cylinders through the first communication pipe, the time of the plastic particles in the drying cylinders is prolonged, reverse hot air is blown into the drying cylinders by the hot air blower, the contact area and the contact time of the hot air and the plastic particles are increased, and thus the drying is more complete.
Description
Technical Field
The invention relates to the technical field of granular plastics, in particular to an automatic dehumidification drying system and a dehumidification drying process for granular plastics.
Background
The plastic particles are particles processed by using waste chemical plastics, the molten plastics are extruded and drawn into plastic strips, the plastic strips are cooled by water and then cut into the plastic particles by a cutting device, and the processed plastic particles have moisture on the surfaces and do not meet the standard requirements of plastic products, so that the finished plastic particles need to be dehumidified and dried.
Carry out the drying to plastic granules through hot-blast among the current dehumidification drying system, stir plastic granules simultaneously, this kind of drying method has following shortcoming: firstly, the amount of plastic particles in the drying cylinder is large, and even if the plastic particles are stirred, many particles still cannot contact hot air, so that the plastic particles are not completely dried, and meanwhile, the drying load of a drying device is also large; secondly, in order to ensure that the plastic particles are completely dried, the plastic particles need to stay in the drying cylinder for a long time, and the plastic particles dried firstly are easily softened and adhered together after being continuously heated.
Therefore, the invention provides an automatic dehumidification and drying system and a dehumidification and drying process for granular plastic.
Disclosure of Invention
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose: an automatic dehumidification drying system for granular plastic comprises a base, a distributing device and a drying device, wherein the distributing device and the drying device are installed on the base;
the material distribution device comprises a central shaft vertically arranged on the front surface of the back plate and a circular ring sleeved outside the central shaft, a plurality of groups of material receiving grooves are uniformly and annularly distributed on the periphery of the circular ring, the material of the bottom of each material receiving groove is a magnet, and the polarities of the bottoms of two adjacent groups of material receiving grooves are opposite; a grooved pulley is sleeved outside the central shaft and fixedly connected with the circular ring, a notched disc is rotatably arranged on the front surface of the back plate, the notched disc is coaxially connected with a rotating wall, a cylindrical pin matched with a radial groove of the grooved pulley is fixedly arranged at one end of the rotating wall, and the other end of the rotating wall is fixedly connected with the output end of a motor arranged on the back surface of the back plate; the side wall of the side plate is positioned below the circular ring and is hinged with a material guide plate through a torsion spring, and the material of the material guide plate is a magnet;
the drying device comprises drying cylinders which are horizontally arranged, the drying cylinders are provided with four groups of first cylinders, second cylinders, third cylinders and fourth cylinders from top to bottom, two adjacent groups of drying cylinders are fixedly connected through two symmetrically arranged groups of fixing frames, rotating shafts extending along the length direction of the drying cylinders are arranged in the drying cylinders, two ends of each rotating shaft are rotatably connected with the inner wall of each drying cylinder through bearings, one end of each rotating shaft, far away from the material distribution device, penetrates through the side wall of each drying cylinder and leads to the outside, gears are fixedly sleeved at the tail ends of the rotating shafts, and the two adjacent groups of gears are meshed with each other;
a driving motor is fixedly mounted on one side, close to the gear, of the top of the bottom plate, the output end of the driving motor is fixedly connected with a rotary shaft at the lowest part through a coupler, and spiral blades distributed along the length direction of the rotary shaft are arranged on the outer wall of the rotary shaft; the side walls of the first barrel and the third barrel, which are close to one end of the material distributing device, are provided with feed inlets, feed mechanisms are arranged in the feed inlets, one ends, which are far away from the feed mechanisms, of the first barrel and the second barrel are connected through a first communication pipe, and one ends, which are far away from the feed mechanisms, of the third barrel and the fourth barrel are connected through a first communication pipe;
the drying device comprises a drying device and is characterized in that a discharge pipe is fixedly connected to one end, far away from a first communicating pipe, of the bottoms of the second barrel and the fourth barrel, the drying device further comprises two sets of air heaters arranged on the side wall of the side plate, and the air heaters are communicated with the second barrel and the fourth barrel through a ventilating pipe penetrating through the side wall of the side plate.
Preferably, the mount comprises the connecting block and the arc that sets up both ends about the connecting block, and the mount that is located the below comprises the connecting block, the arc that sets up on the connecting block top and the horizontal plate that sets up in the connecting block bottom, and the outer wall looks butt of arc and drying cylinder, and the arc passes through screw and drying cylinder fixed connection, and the horizontal plate passes through screw and bottom plate fixed connection.
Preferably, a gap exists between the spiral blade and the inner wall of the drying cylinder, the spiral blade is a grid plate, and the diameter of the grid is smaller than the particle size of the plastic particles.
Preferably, the bottom of the feed inlet is provided with a rectangular clamping groove extending along the length direction of the feed inlet, the feeding mechanism is installed in the rectangular clamping groove, the top of the feed inlet is rotatably provided with a vertical plate extending along the length direction of the feed inlet, and a space exists between the bottom of the vertical plate and the feeding mechanism.
Preferably, the first cylinder is identical to the third cylinder in structure, and the length of the feeding mechanism mounted on the first cylinder is smaller than that of the feeding mechanism mounted on the third cylinder.
Preferably, feed mechanism is including the inclined plate and the baffle of integrated into one piece both sides around the inclined plate top that the slope set up, and the bottom of inclined plate is provided with the rectangle arch with the butt joint block of rectangle draw-in groove.
Preferably, type grooves have been seted up to the bellied one side of rectangle is kept away from at the top of hang plate, type inslot slides and is provided with the pull shell of depositing the drier, and the spout has been seted up to the front and back both sides wall in type groove above the pull shell, and slides in the spout and to have the layer that absorbs water, and the material on the layer that absorbs water is the sponge.
Preferably, be located the top the discharging pipe bottom extends has second communicating pipe, and the bottom of second communicating pipe leads to the discharging pipe of below.
In addition, the invention also provides a dehumidification and drying process of the granular plastic, which is mainly completed by matching the automatic dehumidification and drying system of the granular plastic, and the dehumidification and drying process specifically comprises the following steps:
firstly, continuously pouring plastic particles into a material receiving groove, starting a motor to drive a rotating arm and a notched disc to rotate, when a cylindrical pin on the rotating arm rotates into a radial groove on a grooved wheel, the rotating arm drives the grooved wheel to rotate, the circular ring drives the material receiving groove to rotate, and the material receiving groove intermittently rotates under the drive of the grooved wheel;
when the guide plate rotates to the lower part with the polarity opposite to that of the guide plate, the guide plate is overturned upwards under the attraction force and is abutted against the feeding mechanism of the first cylinder, the plastic particles fall from the inside and are guided to the feeding mechanism above through the guide plate, when the plastic particles slide downwards from the top of the feeding mechanism, the plastic particles are contacted with the water absorption layer for multiple times, the water on the surface is absorbed by the water absorption layer, the drying agent placed in the drawing shell absorbs the water on the water absorption layer, the service time of the water absorption layer is prolonged, and the water absorption layer primarily dehumidifies the water on the surface of the plastic particles;
thirdly, the dehumidified plastic particles are flattened by a vertical plate and slowly fall into a first cylinder, a driving motor is started to drive a rotating shaft at the lowest part to rotate, a gear and a helical blade rotate along with the rotating shaft, other groups of rotating shafts synchronously rotate under the meshing transmission of the gear, and the rotating directions of two adjacent groups of rotating shafts are opposite; the plastic particles move towards the direction of the first communicating pipe under the spiral conveying of the spiral blade, fall into the second cylinder through the first communicating pipe, and move towards the direction of the discharge pipe under the spiral conveying of the spiral blade;
when the material guide plate rotates to the lower part with the same polarity as the material guide plate, the material guide plate is turned downwards by repulsive force, a space exists between the material guide plate and the feeding mechanism above the material guide plate, plastic particles are guided to the feeding mechanism below the material guide plate through the material guide plate and finally enter the third cylinder, the plastic particles move towards the direction of the first communicating pipe under the spiral conveying of the spiral blade, fall into the fourth cylinder through the first communicating pipe and move towards the direction of the discharge pipe under the spiral conveying of the spiral blade;
and step five, opening the air heater during the conveying process of the plastic particles, conveying hot air into the second cylinder and the fourth cylinder, drying the plastic particles by the hot air in the direction opposite to the conveying direction of the plastic particles, enabling the hot air to pass through the spiral blade, enter the first cylinder and the third cylinder through the first communication pipe, and finally discharging the hot air from the feeding hole.
Advantageous effects
1. The grooved pulley drives the material receiving groove to intermittently rotate, plastic particles are sequentially guided into different drying cylinders through the material guide plate, and meanwhile, a feeding mechanism at the feeding port of the drying cylinders is used for carrying out primary dehumidification on the plastic particles, so that the drying load of the drying device is reduced;
2. according to the invention, the helical blades are used for conveying plastic particles, the plastic particles enter the next group of drying cylinders through the first communication pipe, the time of the plastic particles in the drying cylinders is prolonged, reverse hot air is blown into the drying cylinders by the hot air blower, the contact area and the contact time of the hot air and the plastic particles are increased, and thus the drying is more complete.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the construction of the feed divider of the present invention;
FIG. 3 is a perspective view of the dryer cartridge of the present invention;
FIG. 4 is a perspective view of the feed mechanism of the present invention;
FIG. 5 is an enlarged schematic view of area A of FIG. 4 in accordance with the present invention;
FIG. 6 is an enlarged schematic view of area B of FIG. 1 in accordance with the present invention;
FIG. 7 is a schematic view of the installation of the drying cylinder and the discharge pipe of the present invention;
fig. 8 is a perspective view of a tapping pipe according to the invention.
In the figure: 10. a base; 11. a base plate; 12. a side plate; 13. a back plate; 20. a material distributing device; 21. a central shaft; 22. a circular ring; 23. a material receiving groove; 24. a grooved wheel; 25. a notched disc; 26. a rotating arm; 261. a cylindrical pin; 27. a material guide plate; 30. a drying device; 31. a drying cylinder; 31a, a first cylinder; 31b, a second cylinder; 31c, a third cylinder; 31c1, feed inlet; 31c2, rectangular card slot; 31c3, vertical plate; 31d, a fourth cylinder; 32. a fixed mount; 33. a rotating shaft; 331. a gear; 34. a helical blade; 35. a feeding mechanism; 351. an inclined plate; 352. a baffle plate; 353. a rectangular protrusion; 354. a water-absorbing layer; 355. drawing the shell; 36. a first communication pipe; 37. a discharge pipe; 371. a second communicating pipe; 38. a drive motor; 39. a hot air blower; 391. and a vent pipe.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 and 2, an automatic granular plastic dehumidifying and drying system includes a base 10, a material distributing device 20 and a drying device 30, wherein the material distributing device 20 and the drying device 30 are mounted on the base 10, the base 10 includes a bottom plate 11 and a side plate 12 vertically disposed at one end of the top of the bottom plate 11, a back plate 13 is vertically disposed on the top of the bottom plate 11 and located on the back of the side plate 12, the back plate 13 is fixedly connected with the side plate 12 and is perpendicular to the side plate 12, the material distributing device 20 is located on the top of the back plate 13, and the drying device 30 is located on;
the material distributing device 20 comprises a central shaft 21 vertically arranged on the front surface of the back plate 13 and a circular ring 22 sleeved outside the central shaft 21, an anti-slip layer is arranged between the central shaft 21 and the circular ring 22, a plurality of groups of material receiving grooves 23 are arranged on the periphery of the circular ring 22, the material receiving grooves 23 are uniformly and annularly distributed on the periphery of the circular ring 22, the bottoms of the material receiving grooves 23 are arc-shaped and made of magnets, and the polarities of the bottoms of two adjacent groups of material receiving grooves 23 are opposite; the grooved pulley 24 is sleeved outside the central shaft 21 and on the front surface of the circular ring 22, the grooved pulley 24 is fixedly connected with the circular ring 22, the front surface of the back plate 13 is rotatably provided with a notched disc 25, the notched disc 25 is coaxially connected with a rotating wall 26, one end of the rotating wall 26 is fixedly provided with a cylindrical pin 261 matched with the radial groove of the grooved pulley 24, the other end of the rotating wall 26 is fixedly connected with the output end of a motor (not shown in the figure) arranged on the back surface of the back plate 13, and the number of the material receiving grooves 23 is the same as the number of the radial groove groups of the grooved pulley 24, and;
a material guide plate 27 is rotatably arranged on the side wall of the side plate 12 below the circular ring 22, the material guide plate 27 is hinged with the side wall of the side plate 12 through a torsion spring, and the material of the material guide plate 27 is a magnet; when the material receiving groove 23 with the polarity opposite to that of the material guide plate 27 rotates to the lower part, the material guide plate 27 is overturned upwards by the attraction force, and when the material receiving groove 23 with the polarity same as that of the material guide plate 27 rotates to the lower part, the material guide plate 27 is overturned downwards by the repulsion force;
as shown in fig. 1 and 3, the drying device 30 includes a horizontally disposed drying cylinder 31, the drying cylinder 31 has a cylindrical structure with two closed ends, the drying cylinder 31 has four sets of first, second, third and fourth cylinders 31a, 31b, 31c and 31d from top to bottom, two sets of fixing frames 32 symmetrically disposed between two adjacent sets of drying cylinders 31 are fixedly connected, each fixing frame 32 includes a connecting block and arc plates disposed at the upper and lower ends of the connecting block, the fixing frame 32 located at the lowest position includes a connecting block, an arc plate disposed at the top end of the connecting block and a horizontal plate disposed at the bottom end of the connecting block, the arc plates are abutted against the outer wall of the drying cylinder 31, and the arc plates are fixedly connected with the drying cylinder 31 through screws, and the horizontal plate is fixedly connected with the bottom plate 11 through screws;
a rotating shaft 33 is arranged in the drying cylinder 31, the rotating shaft 33 extends along the length direction of the drying cylinder 31, two ends of the rotating shaft 33 are rotatably connected with the inner wall of the drying cylinder 31 through bearings, one end of the rotating shaft 33, which is far away from the material distribution device 20, penetrates through the side wall of the drying cylinder 31 and leads to the outside, a gear 331 is fixedly sleeved at the tail end of the rotating shaft 33, two adjacent groups of gears 331 are mutually meshed and rotate in opposite directions, a driving motor 38 is fixedly installed at one side, which is close to the gear 331, of the top of the bottom plate 11, the output end of the driving motor 38 is fixedly connected with the rotating shaft 33 at the lowest part through a coupler, helical blades 34 distributed along the length direction of the rotating shaft 33 are arranged on the outer wall of;
a feeding mechanism 35 is arranged at one end of the first barrel 31a and the third barrel 31c close to the material distributing device 20, one end of the first barrel 31a and the second barrel 31b far away from the feeding mechanism 35 is connected through a first communicating pipe 36, and one end of the third barrel 31c and the fourth barrel 31d far away from the feeding mechanism 35 is connected through a first communicating pipe 36;
as shown in fig. 4 to 6, the side wall of the third cylinder 31c is provided with a feed port 31c1, the bottom of the feed port 31c1 is provided with a rectangular clamping groove 31c2 extending along the length direction thereof, the feeding mechanism 35 is installed in the rectangular clamping groove 31c2, the top of the feed port 31c1 is rotatably provided with a vertical plate 31c3 extending along the length direction of the feed port 31c1, and a gap is formed between the bottom of the vertical plate 31c3 and the feeding mechanism 35;
the feeding mechanism 35 comprises an inclined plate 351 which is obliquely arranged and baffles 352 which are integrally formed at the front side and the rear side of the top of the inclined plate 351, a rectangular protrusion 353 which is in butt joint and clamping with the rectangular clamping groove 31c2 is arranged at the bottom of the inclined plate 351, a -shaped groove is formed in one side, far away from the rectangular protrusion 353, of the top of the inclined plate 351, a drawing shell 355 for storing a drying agent is arranged in a -shaped groove in a sliding mode, sliding grooves are formed in the front side wall and the rear side wall of the -shaped groove, located above the drawing shell 355, and a water absorbing layer 354;
the first cylinder 31a has the same structure as the third cylinder 31c, the length of the feeding mechanism 35 mounted on the first cylinder 31a is smaller than that of the feeding mechanism 35 mounted on the third cylinder 31c, when the material guide plate 27 is turned upwards, the end of the material guide plate 27 contacts with the feeding mechanism 35 above, the plastic particles falling from the material receiving groove 23 are guided to the feeding mechanism 35 above through the material guide plate 27, when the material guide plate 27 is turned downwards, a gap exists between the end of the material guide plate 27 and the feeding mechanism 35 above, and the plastic particles falling from the material receiving groove 23 are guided to the feeding mechanism 35 below through the material guide plate 27; the plastic particles falling on the feeding mechanism 35 are pushed to be flat by the vertical plate 31c3 and then fall into the third cylinder 31c or the first cylinder 31a, when the plastic particles on the feeding mechanism 35 are stacked, the vertical plate 31c3 is pushed by external force to turn inwards, so that the distance between the vertical plate 31c3 and the feeding mechanism 35 is increased, and the plastic particles fall quickly;
when the plastic particles slide downwards from the top of the feeding mechanism 35, the plastic particles are contacted with the water absorbing layer 354 for multiple times, the water on the surface is absorbed by the water absorbing layer 354, the drying agent placed in the drawing shell 355 absorbs the water on the water absorbing layer 354, the service time of the water absorbing layer 354 is prolonged, the water on the surface of the plastic particles is primarily dehumidified by the water absorbing layer 354, and the drying load of the drying cylinder 31 is reduced to a certain extent;
as shown in fig. 7 and 8, a discharge hole (see fig. 1) is formed at one end of the bottom of the second cylinder 31b and the bottom of the fourth cylinder 31d, which is far away from the first communicating pipe 36, and a discharge pipe 37 is fixedly connected to the discharge hole, a second communicating pipe 371 extends from the bottom of the discharge pipe 37 located above, and the bottom end of the second communicating pipe 371 leads to the discharge pipe 37 below; after entering the first barrel 31a through the feeding mechanism 35, the plastic particles move in the direction of the first communicating pipe 36 under the screw conveying of the screw blade 34, fall into the second barrel 31b through the first communicating pipe 36, and move in the direction of the discharging pipe 37 under the screw conveying of the screw blade 34; similarly, after entering the third cylinder 31c through the feeding mechanism 35, the plastic particles move in the direction of the first communicating pipe 36 under the screw conveying of the screw blade 34, fall into the fourth cylinder 31d through the first communicating pipe 36, and move in the direction of the discharging pipe 37 under the screw conveying of the screw blade 34;
as shown in fig. 1, the drying device 30 further includes two sets of hot air blowers 39 disposed on the side wall of the side plate 12, the two sets of hot air blowers 39 are respectively corresponding to the second cylinder 31b and the fourth cylinder 31d, and the hot air blowers 39 are communicated with the second cylinder 31b and the fourth cylinder 31d through a vent pipe 391 penetrating the side wall of the side plate 12.
In addition, the invention also provides a dehumidification and drying process of the granular plastic, which is mainly completed by matching the automatic dehumidification and drying system of the granular plastic, and the dehumidification and drying process specifically comprises the following steps:
firstly, continuously pouring plastic particles into a receiving groove 23, starting a motor to drive a rotating arm 26 and a notched disc 25 to rotate, when a cylindrical pin 261 on the rotating arm 26 rotates into a radial groove on a grooved wheel 24, the rotating arm 26 drives the grooved wheel 24 to rotate, a circular ring 22 drives the receiving groove 23 to rotate, and the receiving groove 23 intermittently rotates under the drive of the grooved wheel 24;
step two, when the guide plate 27 rotates to the lower side, the guide plate 27 is overturned upwards by the attraction force and abuts against the feeding mechanism 35 of the first cylinder 31a, the plastic particles fall from the guide plate 23 and are guided to the feeding mechanism 35 above through the guide plate 27, the plastic particles slide down from the top of the feeding mechanism 35 and contact with the water absorbing layer 354 for multiple times, the water on the surface is absorbed by the water absorbing layer 354, the desiccant placed in the pull-out shell 355 absorbs the water on the water absorbing layer 354, the service time of the water absorbing layer 354 is prolonged, and the water absorbing layer 354 primarily dehumidifies the water on the surface of the plastic particles;
thirdly, the dehumidified plastic particles are flattened by the vertical plate 31c1 and slowly fall into the first cylinder 31a, the driving motor 38 is started to drive the lowest rotating shaft 33 to rotate, the gear 331 and the helical blade 34 rotate along with the rotating shaft, other groups of rotating shafts 33 synchronously rotate under the meshing transmission of the gear 331, and the rotating directions of two adjacent groups of rotating shafts 331 are opposite; the plastic particles move in the direction of the first communicating pipe 36 under the screw conveying of the screw blade 34, fall into the second cylinder 31b through the first communicating pipe 36, and move in the direction of the discharging pipe 37 under the screw conveying of the screw blade 34;
step four, when the guide plate 23 with the same polarity as the guide plate 27 rotates to the lower side, the guide plate 27 is turned over downwards by the repulsive force, at the moment, a space exists between the guide plate 27 and the feeding mechanism 35 above, plastic particles are guided to the feeding mechanism 35 below through the guide plate 27 and finally enter the third cylinder 31c, the plastic particles move in the direction of the first communicating pipe 36 under the spiral conveying of the spiral blade 34, fall into the fourth cylinder 31d through the first communicating pipe 36, and move in the direction of the discharge pipe 37 under the spiral conveying of the spiral blade 34;
and step five, opening the hot air heater 39 in the conveying process of the plastic particles, conveying hot air to the second cylinder 31b and the fourth cylinder 31d through 391, drying the plastic particles by the hot air in the direction opposite to the conveying direction of the plastic particles, enabling the hot air to pass through the spiral blade 34, enter the first cylinder 31a and the third cylinder 31c through the first communication pipe 36, and finally being discharged from the feeding hole 31c 1.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides an automatic dehumidification drying system of granule plastics, includes base (10), installs feed divider (20) and drying device (30) on base (10), its characterized in that: the base (10) comprises a bottom plate (11) and a side plate (12) vertically arranged at one end of the top of the bottom plate (11), a back plate (13) is vertically arranged on the top of the bottom plate (11) and positioned on the back of the side plate (12), the back plate (13) and the side plate (12) are fixedly connected and mutually perpendicular, the material distributing device (20) is positioned on the top of the back plate (13), and the drying device (30) is positioned on the top of the bottom plate (11);
the material distribution device (20) comprises a central shaft (21) vertically arranged on the front surface of the back plate (13) and a circular ring (22) sleeved outside the central shaft (21), a plurality of groups of material receiving grooves (23) which are uniformly and annularly distributed are arranged on the periphery of the circular ring (22), the bottom of each material receiving groove (23) is made of a magnet, and the polarities of the bottoms of two adjacent material receiving grooves (23) are opposite; a grooved pulley (24) is sleeved outside the central shaft (21), the grooved pulley (24) is fixedly connected with the circular ring (22), a notched disc (25) is rotatably arranged on the front face of the back plate (13), the notched disc (25) is coaxially connected with a rotating wall (26), a cylindrical pin (261) matched with a radial groove of the grooved pulley (24) is fixedly arranged at one end of the rotating wall (26), and the other end of the rotating wall (26) is fixedly connected with the output end of a motor arranged on the back face of the back plate (13); the side wall of the side plate (12) is positioned below the circular ring (22) and is hinged with a material guide plate (27) through a torsion spring, and the material of the material guide plate (27) is a magnet;
the drying device (30) comprises drying cylinders (31) which are horizontally arranged, the drying cylinders (31) are provided with four groups, a first cylinder body (31a), a second cylinder body (31b), a third cylinder body (31c) and a fourth cylinder body (31d) from top to bottom, two adjacent groups of drying cylinders (31) are fixedly connected through two groups of fixing frames (32) which are symmetrically arranged, a rotating shaft (33) which extends along the length direction of the drying cylinders (31) is arranged inside the drying cylinders (31), two ends of the rotating shaft (33) are rotatably connected with the inner wall of the drying cylinders (31) through bearings, one end, far away from the material distribution device (20), of the rotating shaft (33) penetrates through the side wall of the drying cylinders (31) to the outside, a gear (331) is fixedly sleeved at the tail end of the rotating shaft, and the two adjacent groups of gears (331;
a driving motor (38) is fixedly mounted on one side, close to the gear (331), of the top of the bottom plate (11), the output end of the driving motor (38) is fixedly connected with a rotary shaft (33) at the lowest part through a coupler, and spiral blades (34) distributed along the length direction of the rotary shaft (33) are arranged on the outer wall of the rotary shaft (33); the side walls of one ends, close to the material distributing device (20), of the first cylinder body (31a) and the third cylinder body (31c) are provided with a feeding hole (31c1), a feeding mechanism (35) is arranged in the feeding hole (31c1), one end, far away from the feeding mechanism (35), of the first cylinder body (31a) and one end, far away from the feeding mechanism (35), of the second cylinder body (31b) are connected through a first communicating pipe (36), and one end, far away from the feeding mechanism (35), of the third cylinder body (31c) and one end, far away from the feeding mechanism (35), of the fourth cylinder body (31d) are connected through;
the drying device (30) further comprises two groups of air heaters (39) arranged on the side wall of the side plate (12), and the air heaters (39) are communicated with the second cylinder body (31b) and the fourth cylinder body (31d) through ventilation pipes (391) penetrating through the side wall of the side plate (12).
2. The automatic dehumidification drying system for granular plastics, according to claim 1, is characterized in that: mount (32) comprise connecting block and the arc at both ends about the connecting block of setting, and mount (32) that are located the below comprise connecting block, setting at the arc on connecting block top and the horizontal plate that sets up in the connecting block bottom, the outer wall looks butt of arc and drying cylinder (31), and the arc passes through screw and drying cylinder (31) fixed connection, and the horizontal plate passes through screw and bottom plate (11) fixed connection.
3. The automatic dehumidification drying system for granular plastics, according to claim 1, is characterized in that: a gap exists between the spiral blade (34) and the inner wall of the drying cylinder (31), the spiral blade (34) is a grid plate, and the diameter of the grid is smaller than the particle size of the plastic particles.
4. The automatic dehumidification drying system for granular plastics, according to claim 1, is characterized in that: rectangular clamping grooves (31c2) extending along the length direction are formed in the bottom of the feeding hole (31c1), the feeding mechanism (35) is installed in the rectangular clamping grooves (31c2), a vertical plate (31c3) extending along the length direction of the feeding hole (31c1) is rotatably arranged at the top of the feeding hole (31c1), and a distance exists between the bottom of the vertical plate (31c3) and the feeding mechanism (35).
5. The automatic dehumidification drying system for granular plastics, according to claim 4, is characterized in that: the first cylinder (31a) is identical to the third cylinder (31c) in structure, and the length of the feeding mechanism (35) installed on the first cylinder (31a) is smaller than that of the feeding mechanism (35) installed on the third cylinder (31 c).
6. The automatic dehumidification drying system for granular plastics, according to claim 4, is characterized in that: the feeding mechanism (35) comprises an inclined plate (351) which is obliquely arranged and baffle plates (352) which are integrally formed at the front side and the rear side of the top of the inclined plate (351), and rectangular protrusions (353) which are butted and clamped with the rectangular clamping grooves (31c2) are arranged at the bottom of the inclined plate (351).
7. The automatic granular plastic dehumidifying and drying system of claim 6, wherein a -shaped groove is formed in a side of the top of the inclined plate (351) away from the rectangular protrusion (353), a drawing shell (355) for storing a desiccant is slidably arranged in the -shaped groove, sliding grooves are formed in front and rear side walls of the -shaped groove and located above the drawing shell (355), a water absorbing layer (354) is in sliding butt joint with the sliding grooves, and the water absorbing layer (354) is made of sponge.
8. The automatic dehumidification drying system for granular plastics, according to claim 1, is characterized in that: the bottom of the discharge pipe (37) above extends to form a second communicating pipe (371), and the bottom end of the second communicating pipe (371) is communicated with the discharge pipe (37) below.
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Effective date of registration: 20211105 Address after: 271100 nanmayu village, Hezhuang Town, Laiwu District, Jinan City, Shandong Province Applicant after: Shandong Huapeng polymer material Co.,Ltd. Address before: Anqing Normal University, 1318 Jixian North Road, Yixiu District, Anqing City, Anhui Province 246001 Applicant before: Guo Jianshe |
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Denomination of invention: An automatic dehumidification and drying system for granular plastics and its dehumidification and drying process Effective date of registration: 20220511 Granted publication date: 20211119 Pledgee: Laishang Bank Co.,Ltd. Huijin sub branch Pledgor: Shandong Huapeng polymer material Co.,Ltd. Registration number: Y2022980005365 |