CN110480869B - Reclaimed plastic particle drying device and feeding structure - Google Patents
Reclaimed plastic particle drying device and feeding structure Download PDFInfo
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- CN110480869B CN110480869B CN201910685716.2A CN201910685716A CN110480869B CN 110480869 B CN110480869 B CN 110480869B CN 201910685716 A CN201910685716 A CN 201910685716A CN 110480869 B CN110480869 B CN 110480869B
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- pipe
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- machine shell
- gap
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- 239000002245 particle Substances 0.000 title claims abstract description 53
- 229920003023 plastic Polymers 0.000 title claims abstract description 48
- 238000001035 drying Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000010438 heat treatment Methods 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 11
- 229920000426 Microplastic Polymers 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 17
- 238000005192 partition Methods 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 9
- 230000003139 buffering effect Effects 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 4
- 238000007602 hot air drying Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000007791 dehumidification Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000007605 air drying Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/06—Conditioning or physical treatment of the material to be shaped by drying
- B29B13/065—Conditioning or physical treatment of the material to be shaped by drying of powder or pellets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/34—Emptying devices
- B65G65/40—Devices for emptying otherwise than from the top
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/22—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in stationary dishes, trays, pans, or other mainly-open receptacles, with moving stirring devices
-
- 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
- F26B17/12—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft
- F26B17/16—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials passing down a heated surface, e.g. fluid-heated closed ducts or other heating elements in contact with the moving stack of material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
-
- 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
-
- 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
Abstract
The invention discloses a regenerated plastic particle drying device, which comprises a shell, a feed hopper and a feed pipe, wherein the feed hopper is arranged on the shell; a driving device for driving the feeding pipe to rotate is arranged at the top of the shell, and a gap is formed between the bottom of the inner side surface of the feeding hopper and the top of the inner side surface of the feeding pipe; the top wall of the shell is provided with a left fan and a right fan, the lower part of the top wall of the shell is provided with an air outlet cover, the middle upper part in the shell is provided with a screen device capable of swinging left and right, an inclined clapboard which is lower at left and higher at right is arranged below the screen device in the shell, and the left side of the inclined clapboard is provided with a water outlet pipe extending out of the shell; the blanking port is communicated with the heating bin. This kind of recycled plastic granules drying device adopts peculiar feeding structure, forms relative rotation at the junction of feeder hopper bottom and inlet pipe, can make moist plastic granules can produce the change of position when the process, is difficult to fix like prior art and piles up in the original place, forms the harmony stifled, makes the unloading more smooth and easy, has the air-dry dewatering function simultaneously. The invention also designs a feeding structure.
Description
Technical Field
The invention relates to production equipment of plastic particles, in particular to a regenerated plastic particle drying device with air drying and dehumidifying functions; the invention also relates to a feeding structure.
Background
The recycled plastic particles belong to the category of plastic particles, the recycled plastic is plastic produced by recycling used new materials or waste plastic through a screw extruder, and then the plastic is cut into particles through a granulator, and the plastic particles are prepared through the steps of cleaning and drying.
Because the regenerated plastic particles are relatively dirty, a cleaning step is still provided after the particles are cut into particles by a granulator, and the surfaces of the cleaned plastic particles have a large amount of water and are not suitable for direct packaging, so the plastic particles need to be dried or air-dried; in the prior art, drying equipment is various, electric heating drying, hot air drying and the like are adopted, plastic particles are usually temporarily stored in a bin with a water filtering function or kept still on a net with the water filtering function for a period of time before entering the drying equipment, and then enter the drying equipment for water removal, and because the moisture content of the wet plastic particles is large, the energy consumption is relatively high by adopting the modes of electric heating drying, hot air drying and the like, and a centrifugal device is not needed to be additionally arranged on the wet plastic particles, so that the cost is high; on the other hand, the moist plastic particles are liable to form a blockage at the narrow feed opening of the feed hopper when going down through the feed hopper, and when the rotary feed valve is adopted, water on the plastic particles may be gathered and then drip down at the feed pipe, which is a test for the heating unit below.
Because of the above problems, improvements are needed.
In addition, the closest prior art has chinese patent applications: a dehumidification drying device 201811358921.X for regenerated plastic particles, a hot air drying device 201820257132.6 for plastic particles, a straight airflow stirring dryer 201811116485.5 for plastic particles, and the like.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the provided regenerated plastic particle drying device has the functions of air drying and dehumidification and is not easy to block during blanking.
The invention designs a regenerated plastic particle drying device which comprises a shell, a feed hopper fixedly arranged above the shell and a rotatable feed pipe arranged on the top of the shell in a penetrating way; the casing top is equipped with drive inlet pipe pivoted drive arrangement, and the casing top still is equipped with the gas outlet, is equipped with valve, its characterized in that on the inlet pipe: a gap is formed between the outer side surface of the bottom of the feed hopper and the inner side surface of the top of the feed pipe; the bottom of the feed hopper is provided with a lower convex pipe, an annular seat is arranged in the lower convex pipe, a circle of vent holes are formed in the annular seat, the upper part of the inner end of the annular seat is provided with an annular wall, and the feed pipe is arranged in a bearing on the inner side of the annular seat in a penetrating manner; the upper part of the feeding pipe is provided with a convex ring which is positioned at the inner side of the lower convex pipe; a first gap is formed between the outer side surface of the convex ring and the inner side surface of the lower convex pipe, a second gap is formed between the bottom surface of the convex ring and the top surface of the annular wall, a first air chamber communicated with the gap is arranged above the convex ring, and a second air chamber communicated with the vent hole is arranged below the convex ring and outside the annular wall; a high-pressure air tap is arranged on the lower convex pipe and communicated with the first air chamber; an annular water collecting hopper is also arranged at the position of the feeding pipe below the lower convex pipe;
the air outlet cover is arranged below the top wall of the shell, a cross beam is arranged in the air outlet cover, and the feeding pipe is arranged in a bearing on the cross beam in a penetrating manner; an L-shaped stirring rod is arranged at the upper part in the machine shell, the vertical part of the L-shaped stirring rod penetrates through bearings on the top wall of the cross beam and the machine shell, the vertical part of the L-shaped stirring rod is positioned in the center of the machine shell, and the feeding pipe is positioned at the eccentric position of the machine shell; the bottom surface of the transverse part of the L-shaped stirring rod is fully distributed with a toothed bar; the feeding pipe is provided with a transmission gear ring, the vertical part of the L-shaped stirring rod is provided with a transmission wheel matched with the transmission gear ring, and the transmission gear ring and the transmission wheel are positioned in the air outlet cover;
a screen device capable of swinging left and right is arranged at the middle upper part in the casing, the bottom surface of the screen is a circular metal net, and the side surface of the screen is a straight discharging section; the peripheries of the metal net and the discharging section are provided with baffle walls; the transverse part of the L-shaped stirring rod is arranged above the metal net, and a supporting bar is arranged below the middle part of the circular metal net; a hinge seat is fixedly arranged on the central line in the shell, and the support bar is hinged on the hinge seat; a fixed seat is arranged on the left side wall of the casing, and a supporting rod with a buffering top is arranged on the fixed seat and is positioned below the left end of the screen device; the fixed seat is also provided with a lifting mechanism, and the lifting end of the lifting mechanism is movably connected with the left end of the screen device; the air outlet cover is positioned above the circular metal net;
an inclined partition plate with a lower left part and a higher right part is arranged below the screen device in the casing, a vertical baffle plate is arranged at the right end of the inclined partition plate, a blanking port capable of blanking when the screen device unloads is formed between the vertical baffle plate and the right wall of the casing, and a water outlet pipe is arranged at the left side of the inclined partition plate and extends out of the casing; the blanking port is communicated with the heating bin.
Preferably, the method comprises the following steps: a plurality of layers of heating plates are arranged in the heating bin, the heating plates are inclined, the inclination directions of the two adjacent layers of heating plates are opposite, and the lower end of each heating plate is provided with a hole capable of blanking downwards; the lower end of the heating plate at the lowest layer is communicated with the discharge port.
The drying device for the regenerated plastic particles has the beneficial effects that: the feeding device adopts a special feeding structure, and the joint of the bottom of the feeding hopper and the feeding pipe is relatively rotated, so that the position of moist plastic particles can be changed when the moist plastic particles pass through, the moist plastic particles are not easy to be fixedly accumulated in the original position like the prior art, and the blockage is formed, so that the blanking is more smooth, and once water falls, the moist plastic particles can enter the water outlet pipe through the metal net and the partition plate and do not enter the heating bin, and the heating bin is not influenced; the wet plastic particles falling from the feeding pipe can be accumulated on a metal net of the screen device, are stirred and flattened by the L-shaped stirring rod, and are air-dried by the aid of the upper fan and air blown out of the air outlet cover, if water drops are accumulated and fall, the water drops can enter the water outlet pipe through the partition plate, the plastic particles are relatively dry after the water removal process, and can enter the heating bin to be further heated and dehumidified after the screen device is toppled, so that the requirements of finished products are met.
The invention also designs a feeding structure, which comprises a feeding hopper fixedly arranged above the shell and a rotatable feeding pipe arranged on the top of the shell in a penetrating way; casing top is equipped with drive inlet pipe pivoted drive arrangement, its characterized in that: a gap is formed between the outer side surface of the bottom of the feed hopper and the inner side surface of the top of the feed pipe; the bottom of the feed hopper is provided with a lower convex pipe, an annular seat is arranged in the lower convex pipe, a circle of vent holes are formed in the annular seat, the upper part of the inner end of the annular seat is provided with an annular wall, and the feed pipe is arranged in a bearing on the inner side of the annular seat in a penetrating manner; the upper part of the feeding pipe is provided with a convex ring which is positioned at the inner side of the lower convex pipe; a first gap is formed between the outer side surface of the convex ring and the inner side surface of the lower convex pipe, a second gap is formed between the bottom surface of the convex ring and the top surface of the annular wall, a first air chamber communicated with the gap is arranged above the convex ring, and a second air chamber communicated with the vent hole is arranged below the convex ring and outside the annular wall; a high-pressure air tap is arranged on the lower convex pipe and communicated with the first air chamber; an annular water collecting hopper is also arranged at the position of the feeding pipe below the lower convex pipe.
Preferably, the method comprises the following steps: and an inclined surface with a non-contact overlapped part is arranged between the outer side surface of the bottom of the feed hopper and the inner side surface of the top of the feed pipe.
Preferably, the method comprises the following steps: the lower convex pipe is also provided with a detachable part communicated with the first air chamber.
Preferably, the method comprises the following steps: the vent hole port is in a hole expanding shape.
Preferably, the method comprises the following steps: the inlet pipe outside is located the water catch bowl below and is equipped with passive ring gear, and drive arrangement includes motor and by motor drive's driving gear, driving gear and passive ring gear meshing.
The invention also designs a feeding structure, wherein the connecting part of the bottom of the feeding hopper and the feeding pipe forms relative rotation, so that moist material particles can generate position change when passing through, are not easy to be fixedly accumulated in the original position like the prior art to form block, so that blanking is smoother, a certain sealing effect can be generated on a gap part through air pressure, the feeding structure can be sealed while rotating, and when water enters the first air chamber and the second air chamber, the water can be discharged from the vent hole after being accumulated.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification;
FIG. 1 is a schematic structural view of a feed structure described in example 1;
FIG. 2 is a schematic view of the junction of the feed hopper and the feed pipe of example 1;
FIG. 3 is an enlarged view of a portion of the first and second chambers of the feeding structure of example 1;
FIG. 4 is a schematic view of the structure of the reclaimed plastic pellet drying apparatus described in example 2;
FIG. 5 is a top view of a screen apparatus;
FIG. 6 is an enlarged view of the upper left portion of FIG. 4;
in the figure: the device comprises a machine shell 101, a feed hopper 102, a feed pipe 103, a driving device 104, a gap 105, a lower convex pipe 106, an annular seat 107, a vent hole 108, an annular wall 109, a convex ring 110, a first air chamber 111, a second air chamber 112, a high-pressure air nozzle 113, a water collecting hopper 114, a detachable part 115, a driven gear ring 116, a driving gear 117 and a valve 118;
the air conditioner comprises a fan 201, an air outlet cover 202, a beam 203, an L-shaped stirring rod 204, a toothed bar 205, a transmission toothed ring 206, a transmission wheel 207 and an air outlet 208;
the device comprises a screen device 3, a metal mesh 301, a discharging section 302, a blocking wall 303, a supporting bar 304, a hinged seat 305, a fixed seat 306, a supporting rod 307, a lifting mechanism 308, an inclined partition 309, a vertical baffle 310, a discharging port 311 and a water outlet pipe 312;
a heating chamber 4, a heating plate 401 and a discharge outlet 402.
Detailed Description
The invention is further described by way of example with reference to the accompanying drawings.
Example 1:
as shown in fig. 1, 2 and 3, the present embodiment describes a feeding structure, which includes a feeding hopper 102 fixedly disposed above a casing 101 and a feeding pipe 103 rotatably disposed through the top of the casing 101; a driving device 104 for driving the feeding pipe 103 to rotate is arranged at the top of the machine shell 101, and a gap 105 is formed between the outer side surface of the bottom of the feeding hopper 102 and the inner side surface of the top of the feeding pipe 103; the width of the gap 105 must be smaller than the material particles passing through, preferably the width of the gap 105 is one third to one half of the average particle size of the material particles taken, so that the material particles cannot enter the gap 105, and relative rotation can be maintained while preventing the material particles from being stuck in the gap 105; a lower convex pipe 106 is arranged at the bottom of the feed hopper 102, an annular seat 107 is arranged in the lower convex pipe 106, a circle of vent holes 108 are arranged on the annular seat 107, an annular wall 109 is arranged at the upper part of the inner end of the annular seat 107, and the feed pipe 103 is arranged in a bearing at the inner side of the annular seat 107 in a penetrating manner; a convex ring 110 is arranged at the upper part of the feed pipe 103, and the convex ring 110 is positioned at the inner side of the lower convex pipe 106; a first gap is formed between the outer side surface of the convex ring 110 and the inner side surface of the lower convex pipe 106, a second gap is formed between the bottom surface of the convex ring 110 and the top surface of the annular wall 109, a first air chamber 111 communicated with the gap 105 is arranged above the convex ring 110, and a second air chamber 112 communicated with the vent hole 108 is arranged below the convex ring 110 and outside the annular wall 109; the lower convex pipe 106 is provided with a high-pressure air tap 113 communicated with the first air chamber 111; an annular water collecting hopper 114 is also arranged at the position of the feeding pipe 103 below the lower convex pipe 106.
Preferably, the method comprises the following steps: the outer side of the bottom of the feed hopper 102 and the inner side of the top of the feed pipe 103 are inclined planes with non-contact overlapping parts.
Specifically, the port of the vent hole 108 is in a hole expansion shape, and the hole expansion shape has a certain guiding function on air or water, so that the air or water can pass through the vent hole more easily;
specifically, a driven gear ring 116 is arranged below the water collecting hopper 114 outside the feeding pipe 103, the driving device 104 comprises a motor and a driving gear 117 driven by the motor, and the driving gear 117 is meshed with the driven gear ring 116, obviously, the mechanical transmission mode is not limited thereto;
according to the feeding structure, the connecting part of the bottom of the feeding hopper 102 and the feeding pipe 103 rotates relatively, so that moist material particles can change positions when passing through, are not easy to be fixedly accumulated in the original position like the prior art, and form blockage, so that blanking is smoother, a certain sealing effect can be generated on the gap through air pressure, and the gap can be sealed while rotating, and the principle is that a high-pressure air nozzle 113 blows high-pressure air into an air chamber 111, an air cylinder in the air chamber 111 rises, the air flows outwards from a gap I at the lower part and the gap, and the high-pressure air flowing towards the gap plays a sealing role, so that ash and water are not easy to enter; the first gap is used for realizing relative rotation, and only a small amount of gas can escape in a short time, so that the first air chamber 111 can have enough air pressure, high-pressure gas from the first gap enters the second air chamber, the space is enlarged at a moment, the air pressure is reduced, and the high-pressure gas entering the second air chamber is easier to be discharged outside through the vent hole compared with the second gap; once moisture enters the air chamber and is condensed into clusters, finally water drops can be discharged from the vent holes 108 because the material is relatively moist.
In order to increase the cleaning function of the first air chamber, the downward convex pipe 106 is also provided with a detachable part 115 communicated with the first air chamber 111; a movable block which can be clamped or arranged by other connecting modes (such as screw connection) is positioned on the lower convex pipe 106, when the first air chamber needs to be cleaned periodically, the detachable part 115 is removed, the high-pressure air nozzle is opened, and dust which is possibly accumulated in the first air chamber is blown out from a neutral position after the detachable part 115 is detached; the high pressure nozzle is preferably offset from the removable portion 115 as much as possible to facilitate blowing out of the dust.
The feeding structure is suitable for blanking of wet materials, such as plastic particles, rubber particles and the like after cleaning.
Example 2
As shown in fig. 4, 5 and 6, the present embodiment describes a drying device for recycled plastic granules, which comprises a casing 101, a feed hopper 102 fixedly disposed above the casing 101, and a rotatable feed pipe 103 penetrating the top of the casing 101; casing 101 top is equipped with drive inlet pipe 103 pivoted drive arrangement 104, and casing 101 top still is equipped with gas outlet 208, is equipped with valve 118 on the inlet pipe 103, its characterized in that: a gap 105 is arranged between the outer side surface of the bottom of the feed hopper 102 and the inner side surface of the top of the feed pipe 103; a lower convex pipe 106 is arranged at the bottom of the feed hopper 102, an annular seat 107 is arranged in the lower convex pipe 106, a circle of vent holes 108 are arranged on the annular seat 107, an annular wall 109 is arranged at the upper part of the inner end of the annular seat 107, and the feed pipe 103 is arranged in a bearing at the inner side of the annular seat 107 in a penetrating manner; a convex ring 110 is arranged at the upper part of the feed pipe 103, and the convex ring 110 is positioned at the inner side of the lower convex pipe 106; a first gap is formed between the outer side surface of the convex ring 110 and the inner side surface of the lower convex pipe 106, a second gap is formed between the bottom surface of the convex ring 110 and the top surface of the annular wall 109, a first air chamber 111 communicated with the gap 105 is arranged above the convex ring 110, and a second air chamber 112 communicated with the vent hole 108 is arranged below the convex ring 110 and outside the annular wall 109; the lower convex pipe 106 is provided with a high-pressure air tap 113 communicated with the first air chamber 111; an annular water collecting hopper 114 is also arranged at the position of the feeding pipe 103 below the lower convex pipe 106;
the top wall of the machine shell 101 is provided with a left fan 201 and a right fan 201, the lower part of the top wall of the machine shell 101 is provided with an air outlet cover 202, the air outlet cover 202 has a guiding and limiting effect on air blown out by the fans 201, so that the air is only blown to a metal mesh below the air outlet cover, a cross beam 203 is arranged in the air outlet cover 202, and the feeding pipe 103 is arranged in a bearing on the cross beam 203 in a penetrating manner, so that the stability is higher; an L-shaped stirring rod 204 is arranged at the upper part in the machine shell 101, the vertical part of the L-shaped stirring rod 204 is arranged in a bearing between the cross beam 203 and the top wall of the machine shell 101 in a penetrating way, the vertical part of the L-shaped stirring rod 204 is positioned in the center of the machine shell 101, and the feeding pipe 103 is positioned at the eccentric position of the machine shell 101; the bottom surface of the transverse part of the L-shaped stirring rod 204 is fully distributed with a toothed bar 205; a transmission gear ring 206 is arranged on the feeding pipe 103, a transmission wheel 207 is arranged at the vertical part of the L-shaped stirring rod 204 and matched with the transmission gear ring 206, and the transmission gear ring 206 and the transmission wheel 207 are positioned in the air outlet cover 202; by means of the power of the driving device 104, the feeding pipe and the feeding hopper are relatively rotated, and the L-shaped stirring rod 204 is provided with rotating power;
the middle upper part in the machine shell 101 is provided with a screen device 3 which can swing left and right, the bottom surface of the screen is a circular metal net 301, and the side surface is a straight discharging section 302; the peripheries of the metal mesh 301 and the discharging section 302 are provided with baffle walls 303; the blocking wall 303 is 30-50 cm high, so that plastic particles on the metal net 301 are prevented from overflowing; the transverse part of the L-shaped stirring rod 204 is arranged above the metal mesh 301, and a supporting bar 304 is arranged below the middle part of the circular metal mesh 301; a hinge base 305 is fixedly arranged on the center line in the casing 101, and the supporting bar 304 is hinged on the hinge base 305; a fixed seat 306 is arranged on the left side wall of the machine shell 101, and a supporting rod 307 with a buffer on the top (for example, a buffer spring is arranged on the top) is arranged on the fixed seat 306 and is positioned below the left end of the screen device 3; the fixed seat 306 is also provided with a lifting mechanism 308, and the lifting end of the lifting mechanism 308 is movably connected with the left end of the screen device 3; if the lifting mechanism 308 adopts a lifting cylinder, the movable connection means that the top of a piston rod of the lifting cylinder is connected with the screen device 3 through a steel cable, and the steel cable has certain redundancy and can be suitable for the screen device 3 to do arc-shaped position change; obviously, this is only one of the simplest ways, many lifting mechanisms 308 are known in the art, and the movable connection is only required to meet the trajectory of the change in position of the screen assembly 3; the lifting mechanism 308 can drive the screen device 3 to swing so as to be at two positions: 1. horizontally placing the granular plastic in a stirring, blowing and falling into water; 2, the granular plastic slides from the discharging section at an inclined position; the sliding can be performed for a plurality of times and the swinging can be performed for a plurality of times after the sliding is not completed once, and what needs to be explained is that: the special structure of the L-shaped stirring rod 204 can be matched with the inclination of the screen device 3, namely the L-shaped stirring rod 204 can be inclined when the horizontal part of the L-shaped stirring rod runs to the right side and does not block the screen device 3; the air outlet cover 202 is positioned above the circular metal mesh 301;
an inclined partition plate 309 with a lower left part and a higher right part is arranged below the screen device 3 in the machine shell 101, water drops falling from the metal net can be guided to a water outlet pipe 312 by the inclined partition plate 309, a vertical baffle plate 310 is arranged at the right end of the inclined partition plate 309, the vertical baffle plate 310 also has a limiting and blocking effect on the water drops, a blanking port 311 capable of blanking when the screen device 3 unloads is formed between the vertical baffle plate 310 and the right wall of the machine shell 101, and the left side of the inclined partition plate 309 is provided with a water outlet pipe 312 extending out of the machine shell 101; the blanking port 311 is communicated with the heating chamber 4.
Specifically, a plurality of layers of heating plates 401 are arranged in the heating chamber 4, the heating plates 401 are inclined, the inclination directions of two adjacent layers of heating plates 401 are opposite, and the lower end of each heating plate 401 is provided with a port capable of blanking downwards; the lower end of the heating plate 401 at the lowermost layer is communicated with a discharge port 402.
The drying device for the regenerated plastic particles has the beneficial effects that: by adopting a special feeding structure, the connecting part of the bottom of the feeding hopper 102 and the feeding pipe 103 rotates relatively, so that the position of moist plastic particles can be changed when the moist plastic particles pass through, the moist plastic particles are not easy to be fixedly accumulated in the original position like the prior art, and form block, so that the blanking is smoother, and once water falls, the moist plastic particles can enter the water outlet pipe through the metal net and the partition plate and do not enter the heating bin, so that the moist plastic particles have no obstacle to heating bin parts; the wet plastic particles falling from the feeding pipe 103 can be accumulated on the metal mesh 301 of the screen device 3, and are stirred and flattened by the L-shaped stirring rod, and the wet plastic particles are air-dried by the aid of the air blown from the upper fan 201 and the air outlet cover 202, if water drops are accumulated and fall, the water drops can enter the water outlet pipe through the partition plate, the plastic particles are relatively dry after the dewatering process, the plastic particles can enter the heating bin through the blanking port 311 after the screen device 3 is poured, the plastic particles are heated through the multilayer heating plate with the heating function, and further heating and dehumidification are carried out, so that the requirements of finished products are met.
The heating chamber is prior art, and is not limited to the manner mentioned herein, such as the heating techniques mentioned in chinese patent plastic pellet hot air drying device 201820257132.6, a new pellet dryer-201821305732.1, a small pellet dryer-201820137183.5, and can also be used herein.
Claims (6)
1. A drying device for regenerated plastic particles comprises a machine shell (101), a feed hopper (102) fixedly arranged above the machine shell (101) and a rotatable feed pipe (103) arranged at the top of the machine shell (101) in a penetrating way; a driving device (104) for driving the feeding pipe (103) to rotate is arranged at the top of the machine shell (101), an air outlet (208) is also arranged at the top of the machine shell (101), and a valve (118) is arranged on the feeding pipe (103); the method is characterized in that: a gap (105) is arranged between the outer side surface of the bottom of the feed hopper (102) and the inner side surface of the top of the feed pipe (103); a lower convex pipe (106) is arranged at the bottom of the feed hopper (102), an annular seat (107) is arranged in the lower convex pipe (106), a circle of vent holes (108) are formed in the annular seat (107), an annular wall (109) is arranged at the upper part of the inner end of the annular seat (107), and the feed pipe (103) is arranged in a bearing on the inner side of the annular seat (107) in a penetrating manner; a convex ring (110) is arranged at the upper part of the feeding pipe (103), and the convex ring (110) is positioned at the inner side of the lower convex pipe (106); a first gap is formed between the outer side surface of the convex ring (110) and the inner side surface of the lower convex pipe (106), a second gap is formed between the bottom surface of the convex ring (110) and the top surface of the annular wall (109), a first air chamber (111) communicated with the gap (105) is arranged above the convex ring (110), and a second air chamber (112) communicated with the vent hole (108) is arranged below the convex ring (110) and outside the annular wall (109); the lower convex pipe (106) is provided with a high-pressure air tap (113) communicated with the first air chamber (111); an annular water collecting hopper (114) is also arranged at the position of the feeding pipe (103) below the lower convex pipe (106);
the top wall of the machine shell (101) is provided with a left fan (201) and a right fan (201), an air outlet cover (202) is arranged below the top wall of the machine shell (101), a cross beam (203) is arranged in the air outlet cover (202), and the feeding pipe (103) is arranged in a bearing on the cross beam (203) in a penetrating manner; an L-shaped stirring rod (204) is arranged at the upper part in the machine shell (101), the vertical part of the L-shaped stirring rod (204) penetrates through a bearing of the top wall of the cross beam (203) and the machine shell (101), the vertical part of the L-shaped stirring rod (204) is positioned in the center of the machine shell (101), and the feeding pipe (103) is positioned at the eccentric position of the machine shell (101); the bottom surface of the transverse part of the L-shaped stirring rod (204) is fully distributed with a toothed bar (205); a transmission gear ring (206) is arranged on the feeding pipe (103), a transmission wheel (207) is arranged at the vertical part of the L-shaped stirring rod (204) and matched with the transmission gear ring (206), and the transmission gear ring (206) and the transmission wheel (207) are positioned in the air outlet cover (202);
a screen device (3) capable of swinging left and right is arranged at the middle upper part in the machine shell (101), the bottom surface of the screen is a circular metal net (301), and the side surface is a straight discharging section (302); the peripheries of the metal mesh (301) and the discharging section (302) are provided with baffle walls (303); the transverse part of the L-shaped stirring rod (204) is arranged above the metal net (301), and a supporting bar (304) is arranged below the middle part of the circular metal net (301); a hinged seat (305) is fixedly arranged on the inner center line of the shell (101), and the supporting bar (304) is hinged on the hinged seat (305); a fixed seat (306) is arranged on the left side wall of the machine shell (101), a supporting rod (307) with a buffering top is arranged on the fixed seat (306) and is positioned below the left end of the screen device (3); the fixed seat (306) is also provided with a lifting mechanism (308), and the lifting end of the lifting mechanism (308) is movably connected with the left end of the screen device (3); the air outlet cover (202) is positioned above the circular metal net (301);
an inclined partition plate (309) with a lower left part and a higher right part is arranged below the screen device (3) in the casing (101), a vertical baffle plate (310) is arranged at the right end of the inclined partition plate (309), a blanking port (311) capable of blanking when the screen device (3) unloads is formed between the vertical baffle plate (310) and the right wall of the casing (101), and a water outlet pipe (312) is arranged at the left side of the inclined partition plate (309) and extends out of the casing (101); the blanking port (311) is communicated with the heating bin (4).
2. The reclaimed plastic pellet drying apparatus of claim 1, wherein: a plurality of layers of heating plates (401) are arranged in the heating bin (4), the heating plates (401) are inclined, the inclination directions of two adjacent layers of heating plates (401) are opposite, and the lower end of each heating plate (401) is provided with a hole capable of blanking downwards; the lower end of the heating plate (401) at the lowest layer is communicated with the discharge port (402).
3. A feeding structure comprises a feeding hopper (102) fixedly arranged above a shell (101) and a rotatable feeding pipe (103) arranged at the top of the shell (101) in a penetrating way; casing (101) top is equipped with drive inlet pipe (103) pivoted drive arrangement (104), its characterized in that: a gap (105) is arranged between the outer side surface of the bottom of the feed hopper (102) and the inner side surface of the top of the feed pipe (103); a lower convex pipe (106) is arranged at the bottom of the feed hopper (102), an annular seat (107) is arranged in the lower convex pipe (106), a circle of vent holes (108) are formed in the annular seat (107), an annular wall (109) is arranged at the upper part of the inner end of the annular seat (107), and the feed pipe (103) is arranged in a bearing on the inner side of the annular seat (107) in a penetrating manner; a convex ring (110) is arranged at the upper part of the feeding pipe (103), and the convex ring (110) is positioned at the inner side of the lower convex pipe (106); a first gap is formed between the outer side surface of the convex ring (110) and the inner side surface of the lower convex pipe (106), a second gap is formed between the bottom surface of the convex ring (110) and the top surface of the annular wall (109), a first air chamber (111) communicated with the gap (105) is arranged above the convex ring (110), and a second air chamber (112) communicated with the vent hole (108) is arranged below the convex ring (110) and outside the annular wall (109); the lower convex pipe (106) is provided with a high-pressure air tap (113) communicated with the first air chamber (111); an annular water collecting hopper (114) is also arranged at the position of the feeding pipe (103) below the lower convex pipe (106).
4. The feeding structure according to claim 3, wherein: the lower convex pipe (106) is also provided with a detachable part (115) communicated with the first air chamber (111).
5. The feeding structure according to claim 3, wherein: the port of the vent hole (108) is in a hole expanding shape.
6. The feeding structure according to claim 3, wherein: the outside of the feeding pipe (103) is provided with a driven gear ring (116) below the water collecting hopper (114), the driving device (104) comprises a motor and a driving gear (117) driven by the motor, and the driving gear (117) is meshed with the driven gear ring (116).
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| CN110921220B (en) * | 2019-12-21 | 2021-08-03 | 江西馨源香料有限公司 | Chemical material feeder |
| CN112387759B (en) * | 2020-02-21 | 2021-10-22 | 北京申城生物科技集团有限公司 | Garbage deodorization treatment equipment convenient to operate |
| CN112484472B (en) * | 2020-11-05 | 2022-05-03 | 合肥三伍机械有限公司 | Infrared drying mechanism |
| CN115355686B (en) * | 2022-02-10 | 2023-09-08 | 温州医科大学 | Dry heat sterilization device for biological manufacturing |
| CN117697992A (en) * | 2024-02-05 | 2024-03-15 | 泰州市万丰塑业有限公司 | Drying device for plastic granules |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07332851A (en) * | 1994-06-13 | 1995-12-22 | Nippon Alum Co Ltd | Drying silo |
| CN101610886A (en) * | 2007-02-15 | 2009-12-23 | 奥地利埃瑞玛再生工程机械设备有限公司 | Be used to handle the method and apparatus of material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107009540B (en) * | 2017-06-09 | 2019-05-10 | 江苏斯瑞达塑业有限公司 | A kind of energy-saving and environment-friendly plastic pellet dehumidifier |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07332851A (en) * | 1994-06-13 | 1995-12-22 | Nippon Alum Co Ltd | Drying silo |
| CN101610886A (en) * | 2007-02-15 | 2009-12-23 | 奥地利埃瑞玛再生工程机械设备有限公司 | Be used to handle the method and apparatus of material |
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Effective date of registration: 20210831 Address after: 224134 vein Industrial Park, Dafeng District, Yancheng City, Jiangsu Province Applicant after: YANCHENG BEIDI PLASTIC INDUSTRY Co.,Ltd. Address before: 311200 Beigan Street Rong Xing Cun Gao Jia Tan, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant before: Gao Yuanqin |
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Application publication date: 20191122 Assignee: Yancheng Dafeng Hailong Plastics Co.,Ltd. Assignor: YANCHENG BEIDI PLASTIC INDUSTRY Co.,Ltd. Contract record no.: X2023980052237 Denomination of invention: A drying device and feeding structure for recycled plastic particles Granted publication date: 20210917 License type: Common License Record date: 20231214 |
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Effective date of registration: 20240205 Address after: Room 625-2, Chuangye Building, Dongtai High tech Industrial Development Zone, Yancheng City, Jiangsu Province, 224000 Patentee after: Jiangsu Jiaguan New Energy Co.,Ltd. Country or region after: China Address before: 224134 vein Industrial Park, Dafeng District, Yancheng City, Jiangsu Province Patentee before: YANCHENG BEIDI PLASTIC INDUSTRY Co.,Ltd. Country or region before: China |