A rapid drying device and method for plastic pelletizing

Abstract

The present invention relates to the technical field of particle drying, specifically to a rapid drying device and method for plastic pelletizing, comprising a screw feeder, a feeding hopper is installed at the top of the screw feeder, a discharge port is installed at one end of the screw feeder, a fixed bracket and a detachable bracket are respectively provided at the bottom ends of both ends of the screw feeder, a drying rack 1 and a drying rack 2 are sleeved on the cylinder of the screw feeder, and the drying rack 1 and the drying rack 2 are connected by flanges and bolts; the beneficial effect is: the rapid drying device and method for plastic pelletizing proposed by the present invention, through the design of the drying rack 1 and the drying rack 2, combined with the heating effect of the heating pipe, can quickly increase the temperature inside the screw feeder, thereby quickly drying the plastic pelletizing. At the same time, the liquid storage chamber 1 and the liquid storage chamber 2 can collect and discharge the residual liquid on the surface of the plastic pelletizing, further improving the drying effect.

Description

Technical Field

[0001] The invention relates to the technical field of particle drying, in particular to a rapid drying device and method for plastic pelletizing. Background Art

[0002] In the plastic processing industry, plastic pellets need to be cleaned after being cut. The drying process of the cleaned plastic pellets is a key step, which directly affects the quality and production efficiency of plastic products.

[0003] In the prior art, a rapid dryer for plastic pellets with application number 202010821774.6 proposes: by setting a screw rod, it is effectively avoided that when the stirring mechanism stirs the material in the drying box, the height of the drying box cannot be adjusted, which reduces the problem of reducing the working efficiency of the device. It is conducive to convenient and quick adjustment of the height of the drying box, improves the working efficiency of the device, and reduces the labor cost of the staff; however, the above-mentioned drying equipment is usually an independent equipment. After the plastic pellets are salvaged from the cleaning equipment, the screw feeder transports the plastic pellets to the drying equipment for drying. In particular, when liquid remains on the surface of the plastic pellets during the transportation process, if the liquid is not removed in time and effectively, it will not only affect the drying effect, but may also cause damage to subsequent processing equipment.

[0004] Therefore, it has become an urgent need in the industry to develop a device that can efficiently and quickly dry plastic pellets and automatically clean up residual liquid during the transportation process. Summary of the invention

[0005] The object of the present invention is to provide a rapid drying device and method for plastic pelletizing to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rapid drying device for plastic pelletizing, comprising a screw feeder, a feeding hopper is installed at the top of the screw feeder, a discharge port is installed at one end of the screw feeder, a fixed bracket and a detachable bracket are respectively provided at the bottom ends of both ends of the screw feeder, a drying rack 1 and a drying rack 2 are sleeved on the cylinder of the screw feeder, the drying rack 1 and the drying rack 2 are connected by flanges and bolts, a liquid storage chamber 1 and a liquid storage chamber 2 are respectively opened inside the drying rack 1 and the drying rack 2, a pump body is fixed inside the liquid storage chamber 2, and the pump body pumps the liquid in the drying rack 2 The liquid in the part is transported to the liquid storage chamber 2, a drain valve pipe is installed on the surface of the drying rack 1, a pressure relief valve pipe is installed on the top of the drying rack 2, heating pipes are installed inside the drying racks 1 and 2, a reserved groove is opened on the outer wall of the spiral feeder, a plurality of water dispersion holes are opened on the surface of the reserved groove, a swivel is rotatable inside the reserved groove, a cleaning plate is fixed on the surface of the swivel, a sleeve is fixed at one end of the cleaning plate, a knocking handle is movably inserted at one end of the sleeve, a plurality of limiting protrusions are fixed on the surface of the reserved groove, a movable bracket is fixed at the bottom end of the drying racks 1 and 2, and wheel axles are installed on both sides of the movable bracket.

[0007] Preferably, the fixed bracket is an inverted "U"-shaped plate structure, the top surface of the fixed bracket is fixed on the outer wall of the screw feeder, the top plate of the fixed bracket is fixed to the ground by a grounding screw, the detachable bracket and the fixed bracket have the same shape, the detachable bracket is overlapped under one end of the screw feeder, a screw groove is provided on the bottom surface of one end of the screw feeder, a connecting screw is screwed on the bottom surface of the top plate of the detachable bracket, the connecting screw passes through the top plate of the detachable bracket and is screwed into the screw groove; wing plates are fixed on both sides of the detachable bracket, the wing plates are "L"-shaped plate structures, the width of the wing plates is greater than the width of the detachable bracket, and rubber clamps are fixed on the surface of the wing plates. After the detachable bracket is removed from one end of the screw feeder, it leans against one side of the fixed bracket. At this time, the two wing plates are distributed on both sides of the fixed bracket, and the rubber clamps are clamped between the wing plates and the fixed bracket to produce elastic deformation.

[0008] Preferably, the drying rack 1 and the drying rack 2 are both cylindrical structures with an "L"-shaped cross-section, and sealing rings are fixed on the relative annular surfaces of the drying rack 1 and the drying rack 2. After the flanges fixed on the surfaces of the drying rack 1 and the drying rack 2 are fastened and connected by bolts, the sealing rings are elastically deformed under pressure, the liquid storage chamber 1 is an annular groove, and the liquid storage chamber 2 is an annular groove with an "L"-shaped fracture, the pressure relief valve pipe passes through the liquid storage chamber 2, the water suction pipe of the pump body extends into the interior of the drying rack 2, and the drain pipe of the pump body extends into the liquid storage chamber 2.

[0009] Preferably, an embedding groove 1 is provided at the inner ring opening of one end of the drying rack 1, and the embedding groove 1 is an annular groove. A rubber ring is fixed inside the embedding groove 1, and the inner ring diameter of the rubber ring is equal to the outer ring diameter of the screw feeder. A connecting ring is fixed at the end of the drying rack 1 away from the drying rack 2, and the connecting ring is a circular tube structure with an "L"-shaped cross-section. A plurality of through-openings are provided on the surface of the connecting ring, and a clamping handle is movably inserted into the through-opening. The clamping handle is a "convex"-shaped block. An inclined surface is provided at the end of the clamping handle away from the inner ring opening of the connecting ring, and the inclined surface faces the drying rack 1. The other end of the clamping handle is fixed to the surface of the elastic band, and both ends of the elastic band are fixed to the inner ring surface of the connecting ring, and the two ends of the elastic band are respectively distributed on both sides of the through-opening. A retaining ring is sleeved on the tube body of the through-opening, and the retaining ring pushes the clamping handle to clamp the outer wall of the screw feeder.

[0010] Preferably, the retaining ring is an I-shaped ring, the surface of the retaining ring is provided with a through hole, a guide rod is inserted into the inside of the through hole, one end of the guide rod is fixed to the surface of the drying rack, the inner ring surface of the retaining ring is provided with an embedding groove 2, the embedding groove 2 is an annular groove, a rubber clip is fixed inside the embedding groove 2, the rubber clip and the through hole correspond one to one, after the retaining ring covers one end of the clamping handle, the rubber clip is inserted into the through hole, and the clamping handle tensions the elastic band to produce elastic deformation.

[0011] Preferably, the reserved groove is an annular groove, and a mounting opening is provided on the surface of the reserved groove. A limiting shaft is fixed on two parallel side walls of the mounting opening. A transmission gear is sleeved on the shaft body of the limiting shaft, and both sides of the transmission gear extend out of the mounting opening. One side of the transmission gear meshes with a driving gear ring, and a plurality of traction rods are fixed on the inner ring surface of the driving gear ring. One end of the traction rod is fixed on the internal shaft body of the screw feeder, and the other side of the transmission gear meshes with meshing teeth. There are multiple meshing teeth, and the multiple meshing teeth are fixed on the inner ring surface of the rotating ring at equal distances and sizes. A limiting ring is fixed on the surface of the rotating ring, and the limiting ring is in the form of a circular ring plate with a "convex"-shaped cross-section. The limiting ring is rotatably connected in the limiting rotating groove, and the limiting rotating groove is in the form of a "convex"-shaped circular ring groove. The arrangement density of the meshing teeth is less than the arrangement density of the teeth of the driving gear ring.

[0012] Preferably, the sleeve is of a cylindrical structure, the knocking handle is of a cylindrical structure, the bottom end of the knocking handle is spherical, a spring is fixed in the top groove of the knocking handle, one end of the spring is fixed inside the sleeve, the limiting protrusion is of a hemispherical structure, and there are multiple limiting protrusions, which are arranged and distributed at equal distances and sizes around the arc surface of the reserved groove.

[0013] Preferably, the inner ring surfaces of the drying rack 1 and the drying rack 2 are both fixed with mounting rings, the surfaces of the mounting rings are provided with a plurality of sockets, the heating tubes and the sockets correspond one to one, the heating tubes are inserted into the sockets, the inner ring surfaces of the mounting rings are threaded with clamping screws, the clamping screws and the sockets correspond one to one, the clamping screws are inserted into the sockets to clamp the heating tubes.

[0014] Preferably, the moving bracket is in the shape of a "C" - shaped frame. There are two side grooves opened on each of the two parallel side plates of the moving bracket. The side grooves are in the shape of "U" - shaped grooves, and a wheel shaft is fixed on the surface of the side grooves. The wheel shaft is in a "T" - shaped circumference, and the pulley is sleeved on the rod body of the wheel shaft.

[0015] A drying method for a rapid drying device for plastic pelletizing, the method comprising the following steps:

[0016] After assembling the drying rack one and the drying rack two, sleeve them on the spiral feeder. Start the spiral feeder to convey the plastic pellets with liquid adhered to the surface after cleaning, which are input from the feeding hopper. During this process, turn on the heating tube and the pump body. The heating tube raises the temperature inside the spiral feeder, which is beneficial to the evaporation of the moisture on the surface of the plastic pellets. After the scattered liquid falls through the water - dispersing holes, the liquid is pumped by the pump body and discharged into the cavity formed by the liquid storage chamber one and the liquid storage chamber two. During the process of the spiral feeder conveying the plastic pellets, the drying treatment of the plastic pellets is completed.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The rapid drying device and method for plastic pelletizing proposed by the present invention, through the design of the drying rack one and the drying rack two, combined with the heating effect of the heating tube, can rapidly increase the temperature inside the spiral feeder, thereby quickly drying the plastic pellets. At the same time, the liquid storage chamber one and the liquid storage chamber two can collect and discharge the residual liquid on the surface of the plastic pellets, further improving the drying effect; through the design of the rotating ring and the cleaning plate, combined with the transmission effect of the traction rod and the driving gear ring, it can automatically clean the blockages in the water - dispersing holes while the spiral feeder conveys the plastic pellets, ensuring smooth drainage. In addition, the combined use of the knocking handle and the limiting protrusion can effectively shake off the liquid adhered to the inner wall of the spiral feeder, further improving the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is a side view of the structure of the present invention;

[0021] Figure 3 is Figure 2 a sectional view of the structure at A - A in

[0022] Figure 4 is Figure 3 a schematic enlarged view of the structure at A in

[0023] Figure 5 is Figure 3 a schematic enlarged view of the structure at B in

[0024] Figure 6 is Figure 3A magnified schematic diagram of the structure at C in the middle;

[0025] Figure 7 for Figure 3 A magnified schematic diagram of the structure at D in the middle;

[0026] Figure 8 for Figure 4 The enlarged schematic diagram of the structure at E in the middle;

[0027] Fig. 9 This is a schematic diagram of the structure of the spiral feeder of the present invention;

[0028] Fig.10 This is a schematic diagram of the shaft connection structure of the driving gear ring and the screw feeder of the present invention;

[0029] Fig.11 This is a schematic diagram of the detachable bracket structure of the present invention;

[0030] Fig.12 This is a schematic diagram of the connection structure of the drying rack 1 and the drying rack 2 of the present invention;

[0031] Fig.13 This is a structural schematic diagram of the second drying rack of the present invention;

[0032] Fig.14 This is a schematic diagram of the connection structure between the mounting ring and the heating tube of the present invention;

[0033] Fig.15 It is a schematic diagram of the meshing structure of the transmission gear, the driving gear ring and the rotating ring of the present invention.

[0034] In the figure: screw feeder 1, feeding hopper 2, fixed bracket 3, detachable bracket 4, screw groove 5, connecting screw 6, drying rack 1 7, drying rack 2 8, flange 9, bolt 10, sealing ring 11, liquid storage chamber 1 12, liquid storage chamber 2 13, pump body 14, drain valve pipe 15, pressure relief valve pipe 16, discharge port 17, embedded groove 1 18, rubber ring 19, connecting collar 20, through hole 21, clamping handle 22, elastic band 23, retaining ring 24, embedded groove 2 25, rubber clip strip 26, perforation 27, guide rod 28, installation port 29, limit shaft 30, transmission gear 31, drive gear ring 32, traction rod 33, meshing teeth 34, swivel 35, limit ring 36, limit rotation groove 37, cleaning plate 38, sleeve 39, knocking handle 40, spring 41, limit protrusion 42, movable bracket 43, side groove 44, axle 45, pulley 46, reserved groove 47, wing plate 48, rubber clamp 49, water-spraying hole 50, installation ring 51, socket 52, heating tube 53, clamping screw 54. DETAILED DESCRIPTION

[0035] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1

[0037] See also Figures 1 to 3 as well as Fig. 9 and Fig.12 As shown, the present invention provides a technical solution: a rapid drying device for plastic pelletizing, comprising a screw feeder 1, a feeding hopper 2 is installed at the top of the screw feeder 1, a discharge port 17 is installed at one end of the screw feeder 1, a fixed bracket 3 and a detachable bracket 4 are respectively provided at the bottom of both ends of the screw feeder 1, a drying rack 1 7 and a drying rack 2 8 are sleeved on the cylinder of the screw feeder 1, the drying rack 1 7 and the drying rack 2 8 are connected by a flange 9 and a bolt 10, a liquid storage chamber 1 12 and a liquid storage chamber 2 13 are respectively opened inside the drying rack 1 7 and the drying rack 2 8, a pump body 14 is fixed inside the liquid storage chamber 2 13, the pump body 14 transports the liquid inside the drying rack 2 8 to the liquid storage chamber 2 13, a drain valve pipe 15 is installed on the surface of the drying rack 1 7, and the top of the drying rack 2 8 A pressure relief valve pipe 16 is installed, and heating pipes 53 are installed inside the drying rack 1 7 and the drying rack 2 8. A reserved groove 47 is provided on the outer wall of the screw feeder 1, and a plurality of water-spreading holes 50 are provided on the surface of the reserved groove 47. A swivel 35 is rotatably provided inside the reserved groove 47, and a cleaning plate 38 is fixed on the surface of the swivel 35. A sleeve 39 is fixed at one end of the cleaning plate 38, and a knocking handle 40 is movably inserted at one end of the sleeve 39. A plurality of limiting protrusions 42 are fixed on the surface of the reserved groove 47. A movable bracket 43 is fixed at the bottom end of the drying rack 1 7 and the drying rack 2 8, and axles 45 are installed on both sides of the movable bracket 43. Through the design of the drying rack 1 7 and the drying rack 2 8, combined with the heating effect of the heating pipe 53, the temperature inside the screw feeder 1 can be quickly increased, thereby quickly drying the plastic pellets. At the same time, the liquid storage chamber 12 and the liquid storage chamber 2 13 can collect and discharge the residual liquid on the surface of the plastic pellets, further improving the drying effect; through the design of the rotating ring 35 and the cleaning plate 38, combined with the transmission effect of the traction rod 33 and the driving gear ring 32, the obstruction in the water-spreading hole 50 can be automatically cleaned while the screw feeder 1 is conveying the plastic pellets, ensuring smooth drainage. In addition, the coordinated use of the knocking handle 40 and the limiting protrusion 42 can also effectively shake off the liquid adhering to the inner wall of the screw feeder 1, further improving the drying efficiency.

[0038] Embodiment 2

[0039] See attached Fig.11 As shown, on the basis of the first embodiment, in order to adjust the position of the detachable bracket 4 when the drying rack 1 7 and the drying rack 2 8 are installed on the surface of the screw feeder 1, the fixed bracket 3 is an inverted "U"-shaped plate structure, the top surface of the fixed bracket 3 is fixed to the outer wall of the screw feeder 1, and the top plate of the fixed bracket 3 is fixed to the ground through a grounding screw. The detachable bracket 4 has the same shape as the fixed bracket 3. The detachable bracket 4 is overlapped below one end of the screw feeder 1. The bottom surface of one end of the screw feeder 1 is provided with a screw groove 5. The bottom of the top plate of the detachable bracket 4 A connecting screw 6 is screwed on the surface, and the connecting screw 6 passes through the top plate of the detachable bracket 4 and is screwed into the screw groove 5; wing plates 48 are fixed on both sides of the detachable bracket 4, and the wing plates 48 are "L"-shaped plate structures. The width of the wing plates 48 is greater than the width of the detachable bracket 4, and a rubber clamp 49 is fixed on the surface of the wing plates 48. After the detachable bracket 4 is removed from one end of the screw feeder 1, it leans against one side of the fixed bracket 3. At this time, the two wing plates 48 are distributed on both sides of the fixed bracket 3, and the rubber clamp 49 is clamped between the wing plates 48 and the fixed bracket 3 to produce elastic deformation.

[0040] When the drying rack 1 7 and the drying rack 2 8 are not installed on the cylinder of the screw feeder 1, the fixed bracket 3 and the detachable bracket 4 are respectively supported at the bottom of the two ends of the screw feeder 1. The drying rack 1 7 and the drying rack 2 8 need to be installed in front of the screw feeder 1, and the connecting screw 6 is loosened. After the connecting screw 6 is detached from the screw groove 5, the screw feeder 1 is only overlapped on the detachable bracket 4. At this time, the detachable bracket 4 and the screw feeder 1 are not connected. One end of the screw feeder 1 is lifted, and then the detachable bracket 4 is pulled out from under one end of the screw feeder 1, and the detachable bracket 4 is leaned against one side of the fixed bracket 3. At this time, the two wing plates 48 on both sides of the detachable bracket 4 are respectively distributed on both sides of the fixed bracket 3, and the rubber clamping block 49 is clamped between the wing plate 48 and the fixed bracket 3, so that the detachable bracket 4 is temporarily limited to one side of the fixed bracket 3 for storage.

[0041] Embodiment 3

[0042] See attached Figure 5 , Figure 6 as well as Fig.14As shown, on the basis of the second embodiment, in order to realize that the drying rack 1 7 and the drying rack 2 8 are sleeved on the screw feeder 1, while the screw feeder 1 is conveying the plastic pellets, the plastic pellets in the conveying process are dried; the drying rack 1 7 and the drying rack 2 8 are both cylindrical structures with an L-shaped cross section, and sealing rings 11 are fixed on the relative annular surfaces of the drying rack 1 7 and the drying rack 2 8. After the flanges 9 fixed on the surfaces of the drying rack 1 7 and the drying rack 2 8 are locked and connected by bolts 10, the sealing ring 11 is compressed to produce elastic deformation, the liquid storage chamber 12 is an annular groove, and the liquid storage chamber 2 13 is a cross-sectional "L"-shaped cylindrical structure. The opening is an "L"-shaped annular groove, the pressure relief valve pipe 16 passes through the liquid storage chamber 13, the water suction pipe of the pump body 14 extends into the interior of the drying rack 8, and the drainage pipe of the pump body 14 extends into the liquid storage chamber 13; the inner ring surfaces of the drying rack 1 7 and the drying rack 8 are fixed with mounting rings 51, and the surface of the mounting ring 51 is provided with a plurality of sockets 52, the heating tube 53 and the sockets 52 correspond one to one, and the heating tube 53 is plugged into the sockets 52, and the inner ring surface of the mounting ring 51 is threaded with a clamping screw 54, the clamping screw 54 and the sockets 52 correspond one to one, and the clamping screw 54 is inserted into the socket 52 to clamp the heating tube 53.

[0043] When the drying rack 1 7 and the drying rack 2 8 are installed on the cylinder of the screw feeder 1, the cleaned plastic cuttings are conveyed from the feeding hopper 2 to the screw feeder 1, and then conveyed to the next processing equipment through the screw feeder 1. During the conveying process of the plastic pellets inside the screw feeder 1, the residual liquid on the surface of the plastic pellets slides down, and the liquid is collected at the bottom of the drying rack 1 7 and the drying rack 2 8 through the water-scattering holes 50, triggering the switch of the pump body 14 to pump the collected liquid into the cavity formed by the liquid storage chamber 1 12 and the liquid storage chamber 2 13, and the collected liquid is discharged through the drain valve pipe 15; after the switch of the heating pipe 53 is triggered, the heat generated by the heating pipe 53 increases the moisture on the surface of the plastic pellets tumbling and conveying inside the screw feeder 1, and the water vapor is discharged through the pressure relief valve pipe 16; the reason why the drying rack 1 7 and the drying rack 2 8 are connected by the flange 9 is to inspect the internal heating pipe 53 after the drying rack 1 7 and the drying rack 2 8 are disassembled.

[0044] Embodiment 4

[0045] See attached Figure 4As shown in the figure, on the basis of Embodiment 3, in order to fix the first drying rack 7 and the second drying rack 8 on the cylinder body of the screw feeder 1, an embedding groove 18 is provided at the inner ring opening of one end of the first drying rack 7. The embedding groove 18 is an annular groove, and a rubber ring 19 is fixed inside the embedding groove 18. The inner ring diameter of the rubber ring 19 is equal to the outer ring diameter of the screw feeder 1. A connecting collar 20 is fixed at one end of the first drying rack 7 away from the second drying rack 8. The connecting collar 20 has a circular tube structure with an "L"-shaped cross section. A plurality of through holes 21 are provided on the surface of the connecting collar 20. A clamping handle 22 is movably inserted into the through hole 21. The clamping handle 22 is a "convex"-shaped block. One end of the clamping handle 22 away from the inner ring opening of the connecting collar 20 is provided with an inclined surface facing the first drying rack 7. The other end of the clamping handle 22 is fixed on the surface of an elastic band 23. Both ends of the elastic band 23 are fixed on the inner ring surface of the connecting collar 20, and both ends of the elastic band 23 are respectively distributed on both sides of the through hole 21. A retaining ring 24 is sleeved on the tube body of the through hole 21. The retaining ring 24 squeezes and pushes the clamping handle 22 to clamp the outer wall of the screw feeder 1. The retaining ring 24 is an "I"-shaped circular ring. A through hole 27 is provided on the surface of the retaining ring 24. A guide rod 28 is inserted into the through hole 27. One end of the guide rod 28 is fixed on the surface of the first drying rack 7. An embedding groove 25 is provided on the inner ring surface of the retaining ring 24. The embedding groove 25 is an annular groove, and a rubber strip 26 is fixed inside the embedding groove 25. The rubber strip 26 corresponds to the through hole 21 one by one. After the retaining ring 24 covers one end of the clamping handle 22, the rubber strip 26 is inserted into the through hole 21, and the clamping handle 22 stretches the elastic band 23 to generate elastic deformation. The moving bracket 43 is a "C"-shaped bracket. Two side grooves 44 are provided on both of the two parallel side plates of the moving bracket 43. The side grooves 44 are "U"-shaped grooves. A wheel shaft 45 is fixed on the surface of the side grooves 44. The wheel shaft 45 has a "T"-shaped circumference. A pulley 46 is sleeved on the rod body of the wheel shaft 45.

[0046] When the drying rack 1 7 and the drying rack 2 8 are sleeved on the cylinder of the screw conveyor 1, the movable bracket 43 supports the screw conveyor 1. Since the fixed bracket 3 is fixed on the ground, the drying rack 1 7 and the drying rack 2 8 are prevented from sliding the screw conveyor 1, and the retaining ring 24 squeezes the clamping handle 22 to clamp the outer wall of the screw conveyor 1 to prevent the drying rack 1 7 and the drying rack 2 8 from sliding on the cylinder of the screw conveyor 1, and the elastic band 23 is stretched and clamped between the clamping handle 22 and the screw conveyor 1, which has an anti-slip effect on the clamping handle 22 and the screw conveyor 1, and the rubber clip 26 is inserted into the corresponding through hole 27 to prevent the retaining ring 24 from sliding on the connecting ring 20. Intentional sliding; when it is necessary to remove the drying rack 1 7 and the drying rack 2 8 from the cylinder of the screw feeder 1, the retaining ring 24 is moved along the connecting ring 20 to approach the drying rack 1 7, and the retaining ring 24 drives the rubber clip 26 to be pulled out from the through hole 27, and the rubber clip 26 is clamped between the retaining ring 24 and the through hole 21 to produce deformation. When the retaining ring 24 and the clamping handle 22 are misaligned, the elastic band 23 rebounds and drives the clamping handle 22 to rebound to the outside of the through hole 21. At this time, the clamping handle 22 no longer clamps the screw feeder 1, and pushes the drying rack 1 7 and the drying rack 2 8 to slide along the screw feeder 1 to the side away from the fixed bracket 3 until the screw feeder 1 is pulled out from the inner ring mouth of the drying rack 7.

[0047] Embodiment 5

[0048] See attached Figure 7 , Figure 8 , Fig.10 as well as Fig.15As shown, on the basis of the fourth embodiment, in order to prevent blockage and drain water through the water-scattering holes 50 when the screw feeder 1 transports plastic pellets, thereby improving the drying effect; the reserved groove 47 is an annular groove, and a mounting opening 29 is provided on the surface of the reserved groove 47. A limit shaft 30 is fixed on two parallel side walls of the mounting opening 29, and a transmission gear 31 is sleeved on the shaft body of the limit shaft 30. Both sides of the transmission gear 31 extend out of the mounting opening 29, and one side of the transmission gear 31 meshes with a driving gear ring 32. A plurality of traction rods 33 are fixed on the inner ring surface of the driving gear ring 32. One end of the traction rod 33 is fixed on the internal shaft body of the screw feeder 1, and the other side of the transmission gear 31 meshes with a meshing tooth 34. The meshing tooth 34 is provided with a plurality of meshing teeth 34. The inner ring surface of the rotating ring 35 is fixed with equal distance and size, and a limiting ring 36 is fixed on the surface of the rotating ring 35. The limiting ring 36 is a circular ring plate with a "convex"-shaped cross-section. The limiting ring 36 is rotatably connected in the limiting rotating groove 37. The limiting rotating groove 37 is a "convex"-shaped circular ring groove. The arrangement density of the meshing teeth 34 is less than the tooth arrangement density of the driving gear ring 32; the sleeve 39 is a cylindrical structure, and the knocking handle 40 is a cylindrical structure. The bottom end of the knocking handle 40 is spherical, and a spring 41 is fixed in the top groove body of the knocking handle 40. One end of the spring 41 is fixed inside the sleeve 39. The limiting protrusion 42 is a hemispherical structure, and a plurality of limiting protrusions 42 are provided. The plurality of limiting protrusions 42 are arranged and distributed at equal distances and sizes around the arc surface of the reserved groove 47.

[0049] During the process of the screw feeder 1 rotating to transport the plastic pellets, the traction rod 33 pulls the drive gear ring 32 to rotate synchronously with the shaft of the screw feeder 1, and the drive gear ring 32 meshes with the transmission gear 31 to drive the swivel 35 to rotate. Due to the different tooth densities on the surfaces of the meshing teeth 34 and the drive gear ring 32, the rotation speed of the swivel 35 is lower than that of the drive gear ring 32. When the swivel 35 rotates, it drives the cleaning plate 38 to clean the reserved groove 47 to avoid the problem of poor drainage caused by the blockage of the water dispersion hole 50. During the cleaning process of the cleaning plate 38 cleaning along the reserved groove 47, the knocking handle 40 is squeezed and pushed by the multiple limiting protrusions 42 in turn and then rebounds, achieving the effect of knocking the screw feeder 1, which is not only conducive to shaking off the blockage in the water dispersion hole 50, but also conducive to shaking off the liquid adhered to the inner wall of the screw feeder 1 and discharging it through the water dispersion hole 50.

[0050] Embodiment 6

[0051] Based on Example 5, a drying method for a rapid drying device for plastic pelletizing is proposed, comprising the following steps:

[0052] Step 1: When the drying rack 1 7 and the drying rack 2 8 are not installed on the cylinder of the screw conveyor 1, the fixed bracket 3 and the detachable bracket 4 are respectively supported at the bottom of the two ends of the screw conveyor 1. The drying rack 1 7 and the drying rack 2 8 need to be installed in front of the screw conveyor 1, and the connecting screw 6 is loosened. After the connecting screw 6 is detached from the screw groove 5, the screw conveyor 1 is only overlapped on the detachable bracket 4. At this time, the detachable bracket 4 and the screw conveyor 1 are not connected. One end of the screw conveyor 1 is lifted, and then the detachable bracket 4 is pulled out from under one end of the screw conveyor 1, and the detachable bracket 4 is placed against one side of the fixed bracket 3. At this time, the two wing plates 48 on both sides of the detachable bracket 4 are respectively distributed on both sides of the fixed bracket 3, and the rubber clamping block 49 is clamped between the wing plate 48 and the fixed bracket 3, so that the detachable bracket 4 is temporarily limited to one side of the fixed bracket 3 for storage;

[0053] Step 2: After the drying rack 1 7 and the drying rack 2 8 are installed on the cylinder of the screw feeder 1, the cleaned plastic cut materials are conveyed from the feeding hopper 2 to the screw feeder 1, and then conveyed to the next processing equipment through the screw feeder 1. During the conveying process of the plastic pellets in the screw feeder 1, the residual liquid on the surface of the plastic pellets slides down, and the liquid is collected at the bottom of the drying rack 1 7 and the drying rack 2 8 through the water-scattering holes 50, triggering the switch of the pump body 14 to pump and discharge the collected liquid into the cavity formed by the liquid storage chamber 1 12 and the liquid storage chamber 2 13, and the collected liquid is discharged through the drain valve pipe 15; after the switch of the heating pipe 53 is triggered, the heat generated by the heating pipe 53 increases the moisture on the surface of the plastic pellets tumbling and conveying inside the screw feeder 1, and the water vapor is discharged through the pressure relief valve pipe 16; the reason why the drying rack 1 7 and the drying rack 2 8 are connected by the flange 9 is to inspect the internal heating pipe 53 after the drying rack 1 7 and the drying rack 2 8 are disassembled;

[0054] Step 3: After the drying rack 1 7 and the drying rack 2 8 are sleeved on the cylinder of the screw conveyor 1, the movable bracket 43 supports the screw conveyor 1. Since the fixed bracket 3 is fixed on the ground, the drying rack 1 7 and the drying rack 2 8 are prevented from driving the screw conveyor 1 to slide. The retaining ring 24 squeezes the clamping handle 22 to clamp the outer wall of the screw conveyor 1 to prevent the drying rack 1 7 and the drying rack 2 8 from sliding on the cylinder of the screw conveyor 1. The elastic band 23 is stretched and clamped between the clamping handle 22 and the screw conveyor 1 to prevent the clamping handle 22 and the screw conveyor 1 from slipping. The rubber clip 26 is inserted into the corresponding through hole 27 to prevent the retaining ring 24 from slipping on the connecting ring 20. When it is necessary to remove the drying rack 1 7 and the drying rack 2 8 from the cylinder of the screw feeder 1, the retaining ring 24 is moved along the connecting ring 20 to approach the drying rack 1 7, and the retaining ring 24 drives the rubber clip 26 to be pulled out of the through hole 27, and the rubber clip 26 is clamped between the retaining ring 24 and the through hole 21 to produce deformation. When the retaining ring 24 and the clamping handle 22 are misaligned, the elastic band 23 rebounds and drives the clamping handle 22 to rebound to the outside of the through hole 21. At this time, the clamping handle 22 no longer clamps the screw feeder 1, and pushes the drying rack 1 7 and the drying rack 2 8 to slide along the screw feeder 1 to the side away from the fixed bracket 3 until the screw feeder 1 is pulled out of the inner ring of the drying rack 7.

[0055] Step 4: During the process of the screw feeder 1 rotating to transport the plastic pellets, the traction rod 33 pulls the drive gear ring 32 to rotate synchronously with the screw feeder 1, and the drive gear ring 32 meshes with the transmission gear 31 to drive the swivel 35 to rotate. Due to the different tooth densities on the surfaces of the meshing teeth 34 and the drive gear ring 32, the rotation speed of the swivel 35 is lower than that of the drive gear ring 32. When the swivel 35 rotates, it drives the cleaning plate 38 to clean the reserved groove 47 to avoid the problem of poor drainage caused by the blockage of the water dispersion hole 50. During the cleaning process of the cleaning plate 38 cleaning along the reserved groove 47, the knocking handle 40 is squeezed and pushed by the multiple limiting protrusions 42 in turn and then rebounds, achieving the effect of knocking the screw feeder 1, which is not only conducive to shaking off the blockage in the water dispersion hole 50, but also conducive to shaking off the liquid adhered to the inner wall of the screw feeder 1 and discharging it through the water dispersion hole 50.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rapid drying device for plastic pelletizing, comprising a screw conveyor (1), a feeding hopper (2) being installed at the top of the screw conveyor (1), and a discharge port (17) being installed at one end of the screw conveyor (1), characterized in that: The bottom ends of both ends of the screw conveyor (1) are respectively provided with a fixed bracket (3) and a detachable bracket (4); a drying rack (7) and a drying rack (8) are sleeved on the cylinder of the screw conveyor (1); the drying rack (7) and the drying rack (8) are connected by a flange (9) and a bolt (10); a liquid storage chamber (12) and a liquid storage chamber (13) are respectively opened on the frame of the drying rack (7) and the drying rack (8); a pump body (14) is fixed inside the liquid storage chamber (13); the pump body (14) transports the liquid inside the drying rack (8) to the liquid storage chamber (13); a drain valve pipe (15) is installed on the surface of the drying rack (7); a pressure relief valve pipe (16) is installed on the top of the drying rack (8); the drying rack (7) A heating tube (53) is installed inside the first drying rack (7) and the second drying rack (8), a reserved groove (47) is provided on the outer wall of the screw feeder (1), a plurality of water-sprinkling holes (50) are provided on the surface of the reserved groove (47), a rotating ring (35) is rotatably provided inside the reserved groove (47), a cleaning plate (38) is fixed on the surface of the rotating ring (35), a sleeve (39) is fixed at one end of the cleaning plate (38), a knocking handle (40) is movably inserted at one end of the sleeve (39), a plurality of limiting protrusions (42) are fixed on the surface of the reserved groove (47), the knocking handle (40) and the limiting protrusion (42) are used in combination, a movable bracket (43) is fixed at the bottom end of the first drying rack (7) and the second drying rack (8), and axles (45) are installed on both sides of the movable bracket (43); An inner ring opening of one end of the drying rack (7) is provided with an embedding groove (18), which is an annular groove. A rubber ring (19) is fixed inside the embedding groove (18). The inner ring diameter of the rubber ring (19) is equal to the outer ring diameter of the screw feeder (1). A connecting ring (20) is fixed to the end of the drying rack (7) away from the drying rack (8). A plurality of through-holes (21) are provided on the surface of the connecting ring (20). A clamping handle (22) is movably inserted inside the through-holes (21). The clamping handle (22) is a "convex" shaped block. An end of the clamping handle (22) away from the inner ring opening of the connecting ring (20) is provided with an inclined surface, which faces the drying rack (7). The other end of the clamping handle (22) is fixed to the surface of an elastic band (23). Both ends of the elastic band (23) are fixed to the inner ring surface of the connecting ring (20), and the elastic band (23) is fixed to the inner ring surface of the connecting ring (20). The two ends of the force band (23) are respectively distributed on both sides of the through-opening (21); a retaining ring (24) is sleeved on the connecting ring (20); the retaining ring (24) pushes the clamping handle (22) to clamp the outer wall of the screw feeder (1); a through-hole (27) is provided on the surface of the retaining ring (24); a guide rod (28) is inserted into the inside of the through-hole (27); one end of the guide rod (28) is fixed to the surface of the drying rack (7); an embedded groove (25) is provided on the inner ring surface of the retaining ring (24); the embedded groove (25) is an annular groove; a rubber clip (26) is fixed inside the embedded groove (25); the rubber clip (26) and the through-opening (21) correspond one to one; after the retaining ring (24) covers one end of the clamping handle (22), the rubber clip (26) is inserted into the through-opening (21); the clamping handle (22) tensions the elastic band (23) to generate elastic deformation; The reserved groove (47) is an annular groove. A mounting opening (29) is formed on the surface of the reserved groove (47). A limit shaft (30) is fixed on two parallel side walls of the mounting opening (29). A transmission gear (31) is sleeved on the shaft body of the limit shaft (30). Both sides of the transmission gear (31) extend out of the mounting opening (29). One side of the transmission gear (31) meshes with a drive gear ring (32). A plurality of traction rods (33) are fixed on the inner ring surface of the drive gear ring (32). One end of the traction rod (33) is fixed on the spiral On the inner shaft of the feeder (1), the other side of the transmission gear (31) is meshed with meshing teeth (34), a plurality of meshing teeth (34) are provided, and the plurality of meshing teeth (34) are fixed on the inner ring surface of a rotating ring (35) at equal distances and sizes, a limit ring (36) is fixed on the surface of the rotating ring (35), the limit ring (36) is rotatably connected in a limit rotation groove (37), and the limit rotation groove (37) is provided on the screw feeder (1), and the arrangement density of the meshing teeth (34) is less than the tooth arrangement density of the driving gear ring (32).

2. A rapid drying device for plastic pelletizing according to claim 1, characterized in that: The fixed support (3) is in the shape of an inverted "U"-shaped plate structure. The top surface of the fixed support (3) is fixed on the outer wall of the screw feeder (1). The top plate of the fixed support (3) is fixed to the ground through a grounding screw. The detachable support (4) has the same shape as the fixed support (3). The detachable support (4) is lapped under one end of the screw feeder (1). A screw connection groove (5) is provided on the bottom surface of one end of the screw feeder (1). A connection screw (6) is screwed on the bottom surface of the top plate of the detachable support (4). After the connection screw (6) penetrates through the top plate of the detachable support (4), it is screwed into the screw connection groove (5). Wings (48) are fixed on both sides of the detachable support (4). The wing (48) is in the shape of an "L"-shaped plate structure. The width of the wing (48) is greater than the width of the detachable support (4). Rubber clamping blocks (49) are fixed on the surface of the wing (48). After the detachable support (4) is disassembled from one end of the screw feeder (1), it leans against one side of the fixed support (3). At this time, the two wings (48) are distributed on both sides of the fixed support (3), and the rubber clamping blocks (49) are clamped between the wing (48) and the fixed support (3) to generate elastic deformation.

3. The rapid drying device for plastic pelletizing according to claim 1, characterized in that: Both the drying rack one (7) and the drying rack two (8) are in the shape of a cylindrical structure. Sealing rings (11) are fixed on the opposite annular surfaces of the drying rack one (7) and the drying rack two (8). After the flange plates (9) fixed on the surfaces of the drying rack one (7) and the drying rack two (8) are locked and connected by bolts (10), the sealing rings (11) are compressed to generate elastic deformation. The liquid storage cavity one (12) is an annular groove, and the liquid storage cavity two (13) is an annular groove. The pressure relief valve pipe (16) penetrates through the liquid storage cavity two (13). The water suction pipe of the pump body (14) extends into the interior of the drying rack two (8), and the drain pipe of the pump body (14) extends into the liquid storage cavity two (13).

4. The rapid drying device for plastic pelletizing according to claim 1, characterized in that: The sleeve (39) is in the shape of a cylindrical structure, and the knocking handle (40) is in the shape of a cylindrical structure. The bottom end of the knocking handle (40) is spherical. A spring (41) is fixed in the top groove body of the knocking handle (40). One end of the spring (41) is fixed inside the sleeve (39). The limit protrusion (42) is in the shape of a hemispherical structure. There are multiple limit protrusions (42), and the multiple limit protrusions (42) are arranged equidistantly and equally sized around the arc surface of the reserved groove (47).

5. The rapid drying device for plastic pelletizing according to claim 1, characterized in that: Installation rings (51) are fixed on the inner ring surfaces of both the drying rack one (7) and the drying rack two (8). Multiple socket openings (52) are provided on the surface of the installation ring (51). The heating pipes (53) correspond to the socket openings (52) one by one, and the heating pipes (53) are inserted into the socket openings (52). A clamping screw (54) is screwed on the inner ring surface of the installation ring (51). The clamping screw (54) corresponds to the socket opening (52) one by one, and the clamping screw (54) is inserted into the socket opening (52) to clamp the heating pipe (53).

6. The rapid drying device for plastic pelletizing according to claim 1, characterized in that: The moving support (43) is in the shape of a "C"-shaped frame. Two side grooves (44) are provided on each of the two parallel side plates of the moving support (43). The side groove (44) is a "U"-shaped groove. A wheel shaft (45) is fixed on the surface of the side groove (44), and a pulley (46) is sleeved on the rod body of the wheel shaft (45).

7. A drying method for a rapid drying device for plastic pelletizing according to any one of claims 1 to 6, characterized in that: The method includes the following steps: The first drying rack (7) and the second drying rack (8) are assembled and sleeved on the screw feeder (1), and the screw feeder (1) is started to convey the plastic pellets with liquid adhering to the surface after cleaning, which are fed from the feeding hopper (2). During this process, the heating tube (53) and the pump body (14) are turned on. The heating tube (53) increases the internal temperature of the screw feeder (1), which is conducive to the evaporation of water on the surface of the plastic pellets. After the scattered liquid falls through the water-spreading holes (50), the liquid is pumped by the pump body (14) into the cavity formed by the first liquid storage chamber (12) and the second liquid storage chamber (13). During the process of the screw feeder (1) conveying the plastic pellets, the plastic pellets are dried.

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