CN115127311B - Dehydration equipment of raw materials for waste plastic recovery - Google Patents
Dehydration equipment of raw materials for waste plastic recovery Download PDFInfo
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- CN115127311B CN115127311B CN202211037191.XA CN202211037191A CN115127311B CN 115127311 B CN115127311 B CN 115127311B CN 202211037191 A CN202211037191 A CN 202211037191A CN 115127311 B CN115127311 B CN 115127311B
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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
- F26B5/08—Drying solid materials or objects by processes not involving the application of heat by centrifugal treatment
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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
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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
- F26B17/22—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 vertical or steeply inclined
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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
- F26B25/04—Agitating, stirring, or scraping devices
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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
- F26B25/06—Chambers, containers, or receptacles
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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
- F26B5/14—Drying solid materials or objects by processes not involving the application of heat by applying pressure, e.g. wringing; by brushing; by wiping
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Centrifugal Separators (AREA)
Abstract
The invention relates to the field of centrifugal dehydration drying devices, in particular to dehydration equipment for raw materials for waste plastic recovery, which comprises a storage barrel, a material conveying cylinder, a material collecting cylinder, a main shaft, a dehydration centrifugal mechanism and a feeding mechanism, wherein the storage barrel is arranged on the storage barrel; in the invention, because the centrifugal cylinder is obliquely arranged, when the main shaft rotates, the centrifugal cylinder is driven to rotate around the main shaft, and the centrifugal auger rotates in the centrifugal cavity under the drive of the first motor and the first transmission assembly; when the moisture in the centrifugal cavity is under the action of gravity, the centrifugal auger rotates around the axis of the centrifugal auger and the centrifugal cylinder rotates around the main shaft to generate centrifugal force, the water can quickly flow out to the water drainage channel along the inner wall of the inclined dewatering cylinder under the action of the centrifugal force and flows out along the water outlet, so that the aim of centrifugal drying is fulfilled. The centrifugally dried plastic is transferred to a material collecting barrel under the drive of a centrifugal auger. In the dehydration and drying process, water and plastic are separated more thoroughly, the drying efficiency is improved, and the drying effect is enhanced.
Description
Technical Field
The invention relates to the technical field of centrifugal drying devices, in particular to a dehydration device for a raw material for waste plastic recovery.
Background
The drying and dehydration are an extremely important process in the processing process, and in the drying and dehydration process, a dehydration dryer is often used, and the dehydration dryer is also used in the field of plastic recycling to remove water on the surface and in the plastic, so that the dryness is ensured. In the existing dehydration drying equipment, when a heating method is not used and the drying purpose is to be achieved, a centrifugal dehydrator is mainly utilized to enable water to rotate along with a dehydration auger and simultaneously receive centrifugal force, so that the water is separated from plastics under the action of the centrifugal force, wherein a vertical dehydration dryer performs centrifugal dehydration in the vertical direction, for example, a plastic dehydrator disclosed in Chinese patent with publication No. CN109357480B and a dehydration method thereof utilize a centrifugal method to perform dehydration drying treatment.
In the centrifugal dehydrator in the prior art, the centrifugal auger is often vertically arranged, when the main shaft is driven by the motor to rotate rapidly, the centrifugal auger synchronously and rapidly rotates, the moisture in the material can be thrown away all around and passes through the screen drum to flow to the bottom under the action of the centrifugal force while being subjected to self gravity, and then is discharged from the water discharge hole. Although the purposes of energy saving and environmental protection are achieved due to the fact that a heating method is not used, when dehydration is carried out, materials are pushed upwards by a centrifugal auger from bottom to top, so that water at a higher position is thrown around, the water flows downwards to cause more water content at the bottom, separation of water and plastics is incomplete, drying efficiency is low, and a drying effect is poor, so that improvement of a centrifugal dehydrator is needed.
Disclosure of Invention
The invention provides a dehydration device for a raw material for recovering waste plastics, which aims to solve the problems of incomplete separation of water and plastics, low drying efficiency and poor drying effect of the existing plastic dehydration device.
The invention relates to a dehydration device for raw materials for waste plastic recovery, which adopts the following technical scheme: comprises a storage barrel, a material conveying cylinder, a material collecting cylinder, a main shaft, a dewatering centrifugal mechanism and a feeding mechanism; the storage barrel is vertically arranged, the middle part of the storage barrel is horizontally provided with an annular partition plate, the storage barrel is divided into a dewatering part and a storage part, and the storage part is positioned below the dewatering part; the annular partition plate is provided with a baffle plate, and the baffle plate, the annular partition plate and the inner wall of the storage barrel define a drainage channel; a water outlet is arranged on the side wall of the storage barrel positioned at the water drainage part; a feed inlet is arranged on the side wall of the storage barrel positioned at the material storage part; the main shaft is vertically arranged and can rotate relative to the storage barrel; the main shaft is connected with a first driving assembly, and the first driving assembly is used for driving the main shaft to rotate; the material conveying cylinder is sleeved on the main shaft and is positioned at the dewatering part; the material conveying cylinder is communicated with the material storage part and synchronously rotates along with the main shaft; the material collecting barrel is sleeved on the main shaft and is fixedly arranged above the material conveying barrel; the material collecting barrel defines a material collecting cavity; a plurality of dehydration centrifugal mechanisms are arranged around the circumference of the main shaft, and each dehydration centrifugal mechanism comprises a centrifugal cylinder, a filter screen, a centrifugal auger and a first transmission assembly; the centrifugal cylinder is obliquely arranged, the upper end of the centrifugal cylinder is fixedly connected to the material collecting cylinder, the upper end of the centrifugal cylinder is communicated with the material collecting cavity, the lower end of the centrifugal cylinder is communicated with the water drainage channel, the inner wall of the centrifugal cylinder defines a centrifugal cavity, the filter screen is arranged in the centrifugal cavity, the centrifugal auger is arranged in the filter screen, and the centrifugal auger is driven by the first transmission assembly to rotate circumferentially relative to the centrifugal cylinder and convey materials in the centrifugal cavity to the material collecting cavity; the feeding mechanism is used for transferring the materials from the material storing part to the material conveying cylinder and then transferring the materials to the lower part of the centrifugal cavity.
Further, the first transmission assembly comprises a driving wheel, a transmission shaft, a first motor and a plurality of driven wheels; a plurality of mounting cylinders are fixedly arranged on the main shaft; the transmission shaft is rotatably arranged in the main shaft and is coaxial with the main shaft; the driving wheel is synchronously driven along with the transmission shaft; the first motor is connected with the transmission shaft; a plurality of follow driving wheels set up respectively in the tip of a plurality of centrifugal auger pivot, and centrifugal auger passes the installation section of thick bamboo, and a plurality of follow driving wheels all mesh the transmission with the action wheel.
Furthermore, the feeding mechanism comprises a feeding helical blade, a first driving wheel, a plurality of sub-feeding cylinders and a plurality of feeding packing augers; the feeding helical blade is fixedly arranged at the lower part of the main shaft, a main feeding cylinder is arranged at the outer side of the feeding helical blade, and materials are transferred to the feeding cylinder from the material storing part when the main shaft rotates; the first driving wheel is arranged on the transmission shaft and synchronously rotates along with the transmission shaft, an installation column is vertically arranged in the main shaft, a second driving wheel is rotatably arranged on the installation column, and the second driving wheel is in transmission connection with the first driving wheel; a transmission hole is formed in the side wall of the main shaft, and part of the second transmission wheel is overlapped with the outer wall of the main shaft through the transmission hole; the third driving wheel is rotatably arranged on the main shaft and is in transmission connection with the second driving wheel; the quantity of the sub-feeding cylinders is the same as that of the centrifugal cylinders, one end of each sub-feeding cylinder is connected to the material conveying cylinder, and the other end of each sub-feeding cylinder is connected to the centrifugal cylinder; the feeding auger is coaxially arranged in the material separating and feeding cylinder, the end part of the rotating shaft of the feeding auger is connected with a fourth driving wheel, and the fourth driving wheels are in meshing transmission with the third driving wheel.
Further, the pitch of the helical blade of the centrifugal auger is gradually reduced from bottom to top.
Furthermore, an end cover is arranged above the material collecting barrel and communicated with a discharging pipe.
Further, the end cover can rotate relative to the material collecting barrel, and the end cover upper end is equipped with a plurality of fixed columns.
Furthermore, a drain pipe which is inclined downwards is arranged outside the water outlet.
Further, the first driving assembly comprises a second motor and a second transmission assembly, and the second transmission assembly drives the spindle to rotate under the driving of the second motor.
Furthermore, a plurality of water outlet holes are formed in the lower portion of the side wall of the storage barrel.
Further, be equipped with a plurality of guiding gutters on the storage vat diapire, the guiding gutter leads to the delivery port.
The invention has the beneficial effects that: because the centrifugal cylinder is obliquely arranged, when the main shaft rotates, the centrifugal cylinder is driven to rotate around the main shaft, and the centrifugal auger rotates in the centrifugal cavity under the drive of the first motor and the first transmission assembly; when the moisture in the centrifugal cavity is under the action of gravity, the centrifugal auger rotates around the axis of the centrifugal auger and the centrifugal cylinder rotates around the main shaft to generate centrifugal force, the water can quickly flow out to the water drainage channel along the inner wall of the inclined dewatering cylinder under the action of the centrifugal force and flows out along the water outlet, so that the aim of centrifugal drying is fulfilled. The centrifugally dried plastic is transferred to a material collecting barrel under the drive of a centrifugal auger. The problem of because centrifugation auger vertical setting brings the drying incomplete is solved for in the dehydration drying process, the separation of water and plastics is more thorough, has improved drying efficiency, and has strengthened drying effect.
Further, the screw pitch of the spiral blade of the centrifugal auger is set to be gradually reduced from bottom to top, so that the length of the centrifugal auger is shortened while the centrifugal drying time is ensured under the condition of not changing the number of rotating turns, the space occupied by centrifugal dewatering equipment is saved, and the capital construction cost is reduced. Simultaneously, because helical blade's pitch reduces gradually from bottom to top, so plastics are carrying the in-process of collecting the feed cylinder, and when the great position of pitch, plastics and water have sufficient separation space, and when the less position of pitch, the extrusion force between two blades increases, and the water that will not separate in earlier stage separates to deviate from this partial water separation heart, better to the drying effect of plastics, drying efficiency is higher.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without any creative effort.
FIG. 1 is a schematic structural view of an embodiment of a dehydration apparatus for a raw material for recycling waste plastics according to the present invention;
FIG. 2 is a schematic view showing an explosion structure of an embodiment of a dehydration apparatus for a raw material for recycling waste plastics according to the present invention;
FIG. 3 is a sectional view showing an embodiment of a dehydration apparatus for a raw material for recycling waste plastics according to the present invention;
FIG. 4 is an enlarged view of a portion A of FIG. 3;
FIG. 5 is an enlarged view of a portion of FIG. 3 at B;
FIG. 6 is a schematic structural view of a feeding mechanism in an embodiment of a dehydration facility for a raw material for recycling waste plastics according to the present invention;
in the figure: 100. a storage barrel; 101. an annular partition plate; 102. a baffle plate; 103. a water drain; 104. a water discharge port; 105. a feed inlet; 106. a water outlet hole; 107. a diversion trench; 110. a dewatering part; 120. a storage part; 130. an end cap; 131. a discharge pipe; 132. fixing a column; 140. a drain pipe; 200. a main shaft; 210. mounting the cylinder; 220. mounting a column; 300. a delivery cylinder; 400. a material collecting barrel; 500. a dewatering centrifugal mechanism; 510. a centrifugal cylinder; 520. filtering with a screen; 530. centrifuging the auger; 540. a first transmission assembly; 541. a driving wheel; 542. a driven wheel; 543. a drive shaft; 600. a feeding mechanism; 610. a feed screw blade; 620. a main feed cylinder; 630. a separate feeding cylinder; 640. a feeding auger; 651. a first drive pulley; 652. a second transmission wheel; 653. a third transmission wheel; 654. a fourth transmission wheel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The drawings are only used for illustrating specific structures and connection relations thereof, are only schematic and do not show specific dimensions and proportional relations among parts.
An embodiment of the present invention of a raw material dehydration apparatus for waste plastic recycling, as shown in fig. 1 to 6, includes a storage bin 100, a material delivery cylinder 300, a material collection cylinder 400, a main shaft 200, a dehydration centrifugal mechanism 500 and a feeding mechanism 600; the storage barrel 100 is vertically arranged, the middle part of the storage barrel 100 is horizontally provided with an annular partition plate 101, the storage barrel 100 is divided into a dewatering part 110 and a storage part 120, and the storage part 120 is positioned below the dewatering part 110; the annular partition plate 101 is provided with a baffle plate 102, and the baffle plate 102, the annular partition plate 101 and the inner wall of the storage barrel 100 define a drainage channel 103; a water outlet 104 is arranged on the side wall of the storage barrel 100 positioned at the water drainage channel 103; a feed inlet 105 is arranged on the side wall of the storage barrel 100 of the storage part 120; the main shaft 200 is vertically arranged, and the main shaft 200 can rotate relative to the storage barrel 100; the main shaft 200 is connected with a first driving assembly, and the first driving assembly is used for driving the main shaft 200 to rotate; the delivery cylinder 300 is sleeved on the main shaft 200 and is positioned at the dewatering part 110; the material delivery cylinder 300 is communicated with the bin part 120, and the material delivery cylinder 300 synchronously rotates along with the main shaft 200; the material collecting barrel 400 is sleeved on the main shaft 200 and is fixedly arranged above the material conveying barrel 300; the collection barrel 400 defines a collection chamber; a plurality of dewatering and centrifuging mechanisms 500 are arranged around the circumference of the main shaft 200, and each dewatering and centrifuging mechanism 500 comprises a centrifuging cylinder 510, a filter screen 520, a centrifuging auger 530 and a first transmission assembly 540; the centrifugal cylinder 510 is obliquely arranged, the upper end of the centrifugal cylinder 510 is fixedly connected to the material collecting cylinder 400, the upper end of the centrifugal cylinder 510 is communicated with the material collecting cavity, the lower end of the centrifugal cylinder 510 is communicated with the water drainage channel 103, the inner wall of the centrifugal cylinder 510 defines a centrifugal cavity, the filter screen 520 is arranged in the centrifugal cavity, the centrifugal auger 530 is arranged in the filter screen 520, the centrifugal auger 530 is driven by the first transmission assembly 540 to circumferentially rotate relative to the centrifugal cylinder 510, and materials in the centrifugal cavity are conveyed to the material collecting cavity; the feeding mechanism 600 is used to transfer the material from the storage portion 120 to the feeding barrel 300 and then to the lower portion of the centrifugal chamber.
In this embodiment, the first transmission assembly 540 includes a driving wheel 541, a transmission shaft 543, a first motor and a plurality of driven wheels 542; a plurality of mounting cylinders 210 are fixedly arranged on the main shaft 200; the transmission shaft 543 is rotatably mounted in the main shaft 200 and is coaxial with the main shaft 200; the driving wheel 541 synchronously drives with the transmission shaft 543; the first motor is connected to the transmission shaft 543; the driven wheels 542 are respectively arranged at the end parts of the rotating shafts of the centrifugal augers 530, the centrifugal augers 530 penetrate through the mounting cylinder 210, and the driven wheels 542 are in meshing transmission with the driving wheel 541. The first motor drives the transmission shaft 543 to rotate, when the transmission shaft 543 rotates, the driving wheel 541 is driven to rotate, when the driving wheel 541 rotates, the driven wheel 542 is driven to rotate, and further the centrifugal auger 530 is driven to rotate, so that the plastic in the centrifugal cylinder 510 is driven to move from bottom to top.
In this embodiment, the feeding mechanism 600 includes a feeding screw blade 610, a first driving wheel 651, a plurality of sub-feeding cylinders 630 and a plurality of feeding augers 640; the feeding helical blade 610 is fixedly arranged at the lower part of the main shaft 200, a main feeding cylinder 620 is arranged at the outer side of the feeding helical blade 610, and materials are transferred from the storage part 120 to the feeding cylinder 300 when the main shaft 200 rotates; the first transmission wheel 651 is mounted on the transmission shaft 543 and synchronously rotates along with the transmission shaft 543, the mounting column 220 is vertically arranged in the main shaft 200, the second transmission wheel 652 is rotatably mounted on the mounting column 220, and the second transmission wheel 652 is in transmission connection with the first transmission wheel 651; a transmission hole is formed in the side wall of the main shaft 200, and part of the second transmission wheel 652 is overlapped with the outer wall of the main shaft 200 through the transmission hole; a third transmission wheel 653 is rotatably arranged on the spindle 200, and the third transmission wheel 653 is in transmission connection with a second transmission wheel 652; the number of the sub-feeding cylinders 630 is the same as that of the centrifugal cylinder 510, one end of the sub-feeding cylinder 630 is connected to the material conveying cylinder 300, and the other end is connected to the centrifugal cylinder 510; the material supply auger 640 is coaxially arranged in the material distribution cylinder 630, the end part of the rotating shaft of the material supply auger 640 is connected with a fourth driving wheel 654, and a plurality of fourth driving wheels 654 are all in meshing transmission with the third driving wheel 653. The main shaft 200 drives the feeding helical blade 610 to rotate at the same time, and the plastic in the storage part 120 enters the main feeding cylinder 620 under the driving of the feeding helical blade 610 and is further transferred to the feeding cylinder 300; when the transmission shaft 543 rotates, the first transmission wheel 651 rotates synchronously with the transmission shaft 543, the rotation of the first transmission wheel 651 drives the second transmission wheel 652 to rotate, the third transmission wheel 653 rotates under the driving of the second transmission wheel 652 so as to drive the fourth transmission wheel 654 to rotate, when the fourth transmission wheel 654 rotates, the feeding auger 640 is driven to rotate, and when the three feeding augers 640 rotate, plastics in the material conveying cylinder 300 are conveyed to the three centrifugal cylinders 510 through the three sub-feeding cylinders 630 respectively.
In this embodiment, the pitch of the helical blade of the centrifugal auger 530 is gradually reduced from bottom to top, and when the plastic moves from bottom to top in the centrifugal cylinder 510, the plastic is extruded by the blades of the centrifugal auger 530 in addition to the centrifugal force generated by the gravity of the plastic, the rotation of the centrifugal auger 530 around the axis of the plastic and the rotation of the centrifugal cylinder 510 around the main shaft 200, so that the dewatering effect is enhanced, and the dewatering and drying efficiency is further improved.
In this embodiment, an end cover 130 is arranged above the material collecting barrel 400, the end cover 130 is communicated with the material discharging pipe 131, the end cover 130 can rotate relative to the material collecting barrel 400, and a plurality of fixing columns 132 are arranged at the upper end of the end cover 130. The dehydrated and dried plastic is conveyed into the material collecting barrel 400 by the centrifugal auger 530, and after the plastic is accumulated to a certain degree, the plastic is discharged from the discharge pipe 131 and led into the material collecting device, and the dehydration and drying work is finished, and then the subsequent processing work is continued. The end cap 130 is fixedly mounted to a bracket or other device above via fixing posts 132 to ensure that the end cap 130 does not rotate.
In this embodiment, the drain pipe 140 is disposed at the outer side of the drain opening 104 and inclines downward, and the water on the plastic surface in the centrifugal cylinder 510 is subjected to the centrifugal force generated by the rotation of the centrifugal auger 530 around its axis and the rotation of the centrifugal cylinder 510 around the main shaft 200 while being subjected to its own weight, so as to rapidly pass through the filter screen 520, then flow downward along the inclined centrifugal cylinder 510, remain in the drain passage 103, and then flow out of the drain opening 104 and be discharged along the drain pipe 140.
In this embodiment, the first driving assembly includes a second motor and a second transmission assembly, the second transmission assembly drives the main shaft 200 to rotate under the driving of the second motor, and the second transmission assembly may be a friction transmission or a gear transmission.
In this embodiment, a plurality of apopores 106 have been seted up to the lower part of storage vat 100 lateral wall, are equipped with a plurality of guiding gutters 107 on the storage vat 100 diapire, and guiding gutter 107 leads to the delivery port. The crushed and washed plastic is fed into the storage tank 100 through the feed inlet 105, and when the plastic is too much accumulated, the water on the surface of the plastic flows downwards under the action of self gravity and is discharged from the water outlet 106 through the guide of the diversion trench 107.
With the above embodiments, the usage principle and working process of the present invention are as follows:
the crushed and washed plastic is fed into the storage tank 100 through the feed inlet 105, and when the plastic is too much accumulated, the water on the surface of the plastic flows downwards under the action of self gravity and is discharged from the water outlet 106 through the guide of the diversion trench 107.
Starting a first motor and a second motor, wherein the first motor and the second motor respectively drive the transmission shaft 543 and the main shaft 200 to rotate; the main shaft 200 drives the feeding helical blade 610 to rotate at the same time, and the plastic in the storage part 120 enters the main feeding cylinder 620 under the driving of the feeding helical blade 610 and is further transferred to the feeding cylinder 300; when the transmission shaft 543 rotates, the first transmission wheel 651 rotates synchronously with the transmission shaft 543, the rotation of the first transmission wheel 651 drives the second transmission wheel 652 to rotate, the third transmission wheel 653 rotates under the driving of the second transmission wheel 652 to drive the fourth transmission wheel 654 to rotate, when the fourth transmission wheel 654 rotates, the feeding auger 640 is driven to rotate, when the three feeding auger 640 rotates, the plastics in the feeding cylinder 300 are respectively conveyed into the three centrifugal cylinders 510 through the three sub-feeding cylinders 630, when the transmission shaft 543 rotates, the driving wheel 541 rotates, when the driving wheel 541 rotates, the driven wheel 542 rotates, and the centrifugal auger 530 rotates to drive the plastics in the centrifugal cylinders 510 to move from bottom to top, meanwhile, when the main shaft 200 rotates, the three centrifugal cylinders 510 rotate synchronously with the main shaft 200, when the moisture on the plastic surface in the centrifugal cylinders 510 receives the self gravity, the moisture on the plastic surface rotates around the self axis by the centrifugal auger 530 and the centrifugal cylinder 510 rotates around the main shaft 200 to generate centrifugal force, so as to rapidly pass through the filter screen 520, then flows downwards along the inclined centrifugal cylinders 510, and stays in the drainage channel 103, and then flows out of the drainage pipe 140 after flowing out of the drainage pipe 104. Compared with the dehydration equipment in the prior art, the separation of water and plastics is more thorough, the drying efficiency is improved, and the drying effect is enhanced. When the plastic moves upwards in the centrifugal cylinder 510, the screw pitch of the centrifugal auger 530 is changed from large to small, and the plastic is extruded by the blades of the centrifugal auger 530 in the process, so that the dehydration effect is enhanced, and the dehydration and drying work efficiency is further improved.
The dehydrated and dried plastic is conveyed into the material collecting barrel 400 by the centrifugal auger 530, and after the plastic is accumulated to a certain degree, the plastic is discharged from the discharge pipe 131 and led into the material collecting device, and the dehydration and drying work is finished, and then the subsequent processing work is continued.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A dehydration plant of raw materials for the recovery of waste plastics, characterized by comprising:
the storage bucket (100) is vertically arranged, the middle part of the storage bucket (100) is horizontally provided with an annular partition plate (101) which divides the storage bucket (100) into a dewatering part (110) and a storage part (120), and the storage part (120) is positioned below the dewatering part (110); a baffle (102) is arranged on the annular partition plate (101), and a water drainage channel (103) is defined by the baffle (102), the annular partition plate (101) and the inner wall of the storage bucket (100); a water outlet (104) is arranged on the side wall of the storage barrel (100) positioned at the water drainage channel (103); a feed inlet (105) is arranged on the side wall of the storage barrel (100) positioned at the storage part (120);
the main shaft (200) is vertically arranged, and the main shaft (200) can rotate relative to the storage barrel (100); the main shaft (200) is connected with a first driving assembly, and the first driving assembly is used for driving the main shaft (200) to rotate;
the delivery cylinder (300) is sleeved on the main shaft (200) and is positioned at the dewatering part (110); the material conveying cylinder (300) is communicated with the material storing part (120), and the material conveying cylinder (300) synchronously rotates along with the main shaft (200);
the material collecting barrel (400) is sleeved on the main shaft (200) and is fixedly arranged above the material conveying barrel (300); the aggregate barrel (400) defines an aggregate chamber;
a plurality of dehydrating and centrifuging mechanisms (500) are arranged around the circumference of the main shaft (200), and each dehydrating and centrifuging mechanism (500) comprises a centrifuging cylinder (510), a filter screen (520), a centrifuging auger (530) and a first transmission assembly (540); the centrifugal cylinder (510) is obliquely arranged, the upper end of the centrifugal cylinder is fixedly connected to the material collecting cylinder (400), the upper end of the centrifugal cylinder (510) is communicated with the material collecting cavity, the lower end of the centrifugal cylinder (510) leads to the water drainage channel (103), the inner wall of the centrifugal cylinder (510) defines the centrifugal cavity, the filter screen (520) is arranged in the centrifugal cavity, the centrifugal auger (530) is arranged in the filter screen (520), the centrifugal auger (530) is driven by the first transmission assembly (540) to rotate circumferentially relative to the centrifugal cylinder (510), and materials in the centrifugal cavity are conveyed to the material collecting cavity;
the feeding mechanism (600) is used for transferring the materials from the material storage part (120) to the material conveying cylinder (300) and then transferring the materials to the lower part of the centrifugal cavity, and the first transmission assembly (540) comprises a driving wheel (541), a transmission shaft (543), a first motor and a plurality of driven wheels (542); a plurality of mounting cylinders (210) are fixedly arranged on the main shaft (200); the transmission shaft (543) is rotatably mounted in the main shaft (200) and is coaxial with the main shaft (200); the driving wheel (541) is synchronously driven along with the transmission shaft (543); the first motor is connected to the transmission shaft (543); the driven wheels (542) are respectively arranged at the end parts of the rotating shafts of the centrifugal augers (530), the centrifugal augers (530) penetrate through the mounting cylinder (210), and the driven wheels (542) are in meshing transmission with the driving wheel (541); the feeding mechanism (600) comprises a feeding spiral blade (610), a first transmission wheel (651), a plurality of sub-feeding cylinders (630) and a plurality of feeding packing augers (640); the feeding spiral blade (610) is fixedly arranged at the lower part of the main shaft (200), a main feeding cylinder (620) is arranged at the outer side of the feeding spiral blade (610), and materials are transferred to the material conveying cylinder (300) from the storage part (120) when the main shaft (200) rotates; the first transmission wheel (651) is mounted on the transmission shaft (543) and synchronously rotates along with the transmission shaft (543), a mounting column (220) is vertically arranged in the main shaft (200), a second transmission wheel (652) is rotatably mounted on the mounting column (220), and the second transmission wheel (652) is in transmission connection with the first transmission wheel (651); a transmission hole is formed in the side wall of the main shaft (200), and part of the second transmission wheel (652) is overlapped with the outer wall of the main shaft (200) through the transmission hole; the third transmission wheel (653) is rotatably arranged on the spindle (200), and the third transmission wheel (653) is in transmission connection with the second transmission wheel (652); the number of the sub-feeding cylinders (630) is the same as that of the centrifugal cylinders (510), one end of each sub-feeding cylinder (630) is connected to the material conveying cylinder (300), and the other end of each sub-feeding cylinder is connected to the centrifugal cylinder (510); the feeding auger (640) is coaxially arranged in the sub-feeding barrel (630), the end part of a rotating shaft of the feeding auger (640) is connected with a fourth driving wheel (654), a plurality of fourth driving wheels (654) are in meshing transmission with a third driving wheel (653), three centrifugal barrels (510) synchronously rotate along with the main shaft (200) when the main shaft (200) rotates, and moisture on the surface of plastic in the centrifugal barrels (510) is subjected to self gravity and centrifugal force generated by the rotation of the centrifugal auger (530) around the axis of the centrifugal barrel and the rotation of the centrifugal barrels (510) around the main shaft (200).
2. The apparatus for dehydrating a raw material for recycling waste plastics according to claim 1, wherein: the screw pitch of the helical blade of the centrifugal auger (530) is gradually reduced from bottom to top.
3. The apparatus for dehydrating a raw material for recycling waste plastics according to claim 2, wherein: an end cover (130) is arranged above the material collecting barrel (400), and the end cover (130) is communicated with a material discharging pipe (131).
4. The apparatus for dehydrating a raw material for recycling waste plastics according to claim 3, wherein: the end cover (130) can rotate relative to the material collecting barrel (400), and a plurality of fixing columns (132) are arranged at the upper end of the end cover (130).
5. The apparatus for dehydrating a raw material for recycling waste plastics according to any one of claims 1 to 4, wherein: the outer side of the water outlet (104) is provided with a downward inclined water outlet pipe (140).
6. The apparatus for dehydrating a raw material for recycling waste plastics according to claim 5, wherein: the first driving assembly comprises a second motor and a second transmission assembly, and the second transmission assembly drives the spindle (200) to rotate under the driving of the second motor.
7. The apparatus for dehydrating a raw material for recycling waste plastics according to claim 5, wherein: the lower part of the side wall of the storage barrel (100) is provided with a plurality of water outlet holes (106).
8. The apparatus for dehydrating a raw material for recycling waste plastics according to claim 7, wherein: the storage tank (100) is provided with a plurality of diversion trenches (107) on the bottom wall, and the diversion trenches (107) lead to the water outlet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211037191.XA CN115127311B (en) | 2022-08-29 | 2022-08-29 | Dehydration equipment of raw materials for waste plastic recovery |
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| CN202211037191.XA CN115127311B (en) | 2022-08-29 | 2022-08-29 | Dehydration equipment of raw materials for waste plastic recovery |
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| CN115127311B true CN115127311B (en) | 2022-11-29 |
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| CN201055805Y (en) * | 2007-04-27 | 2008-05-07 | 广州德润环保科技发展有限公司 | Slant pulverizing and dewatering device capable of corrupting organic refuse |
| CN205980685U (en) * | 2016-08-26 | 2017-02-22 | 珠海格力电器股份有限公司 | Dewatering hot air drying equipment and drying device thereof |
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