CN118144155B - Device for recycling plastics from papermaking waste residues - Google Patents
Device for recycling plastics from papermaking waste residues Download PDFInfo
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- CN118144155B CN118144155B CN202410163057.7A CN202410163057A CN118144155B CN 118144155 B CN118144155 B CN 118144155B CN 202410163057 A CN202410163057 A CN 202410163057A CN 118144155 B CN118144155 B CN 118144155B
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- cylinder
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- rotary drum
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- 239000004033 plastic Substances 0.000 title claims abstract description 133
- 229920003023 plastic Polymers 0.000 title claims abstract description 133
- 239000002699 waste material Substances 0.000 title claims abstract description 36
- 238000004064 recycling Methods 0.000 title abstract description 7
- 230000007246 mechanism Effects 0.000 claims abstract description 71
- 238000004140 cleaning Methods 0.000 claims abstract description 70
- 238000007664 blowing Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 70
- 238000007790 scraping Methods 0.000 claims description 37
- 238000001125 extrusion Methods 0.000 claims description 21
- 238000010009 beating Methods 0.000 claims description 14
- 238000005273 aeration Methods 0.000 claims description 8
- 239000010802 sludge Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 5
- 239000010865 sewage Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims 2
- 239000002985 plastic film Substances 0.000 abstract description 41
- 229920006255 plastic film Polymers 0.000 abstract description 41
- 239000012535 impurity Substances 0.000 abstract description 17
- 239000000428 dust Substances 0.000 abstract description 14
- 239000002184 metal Substances 0.000 abstract description 13
- 229910052751 metal Inorganic materials 0.000 abstract description 13
- 239000013049 sediment Substances 0.000 abstract description 10
- 230000003749 cleanliness Effects 0.000 abstract description 2
- 239000000123 paper Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B17/0412—Disintegrating plastics, e.g. by milling to large particles, e.g. beads, granules, flakes, slices
-
- 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
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
-
- 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
- B29B2017/001—Pretreating the materials before recovery
- B29B2017/0015—Washing, rinsing
-
- 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
- B29B17/02—Separating plastics from other materials
- B29B2017/0213—Specific separating techniques
- B29B2017/0217—Mechanical separating techniques; devices therefor
- B29B2017/0237—Mechanical separating techniques; devices therefor using density difference
- B29B2017/0241—Mechanical separating techniques; devices therefor using density difference in gas, e.g. air flow
-
- 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
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B2017/0424—Specific disintegrating techniques; devices therefor
- B29B2017/0476—Cutting or tearing members, e.g. spiked or toothed cylinders or intermeshing rollers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention relates to a device for recycling plastics from papermaking waste residues, which comprises a shredding chamber, a separating cylinder and a cleaning machine; the separating cylinder comprises a plastic conveying cylinder, a feeding cylinder and a net cylinder which are sequentially arranged, and a feeding bin is arranged at the top of the feeding cylinder; the upper end of the plastic conveying cylinder is connected with an upper jacket, and the bottom of the upper jacket is provided with a plastic outlet; an air blowing mechanism is arranged in the lower port of the net barrel, a lower jacket is arranged on the outer wall of the lower part of the net barrel, a second discharge hole is arranged on the net barrel in the lower jacket, and a third discharge hole is arranged at the bottom of the lower jacket; a collecting sleeve is fixedly arranged between the feeding cylinder and the lower jacket, and the collecting sleeve is communicated with the lower jacket. The invention tears the plastic film in the waste residue, avoids the large plastic films from intertwining each other and not being easy to separate, simultaneously avoids the plastic films from wrapping dust, sediment, metal and other impurities, ensures that the plastic films can be fully separated from the sediment, the metal and the like, then cleans the plastic, removes the tiny dust attached on the plastic, and improves the cleanliness of the recycled plastic.
Description
Technical Field
The invention belongs to the technical field of plastic recovery, and particularly relates to a device for recovering plastic from papermaking waste residues.
Background
The paper packaging box is a very common packaging material, the demand is large, the yield is high, in order to fully utilize resources, when the paper packaging box is produced, the recycled paper objects are often used as raw materials, a large amount of waste residues can be produced in the process of producing the paper board, and as the raw materials are often mixed with plastics, more plastics are contained in the waste residues for paper making, and through detection, the plastics in the waste residues for paper making account for up to 60-70%, the metal taking iron as a main account for about 10%, and the rest components are paper pulp and sediment. In order to meet the requirement of environmental protection, waste residues cannot be treated in an incineration mode, if plastics in the waste residues can be recovered, the waste residues can be treated in an environmental protection mode, the plastics can be reused, and a certain economic effect is generated.
CN201811016131.3 discloses a device for refining waste plastics from waste residues of a recycled paper mill, by placing the waste residues into a water tank, plastics with smaller density can float on the water surface, and impurities such as metal, silt and the like sink into the water bottom, and pulp is mixed in the water, so that the plastics are separated. However, since the plastics in the papermaking waste residues usually exist in the form of plastic films, the plastic films are easy to intertwine and difficult to fully spread, and the plastic films can wrap the components such as sediment, metal, paper pulp and the like, so that the obtained plastics still contain more impurities.
Disclosure of Invention
The invention aims to solve the technical problem of providing a device for recycling plastics from papermaking waste residues, which reduces impurities in the recycled plastics.
In order to solve the problems, the invention adopts the following technical scheme: the device for recycling plastic from papermaking waste residues comprises a shredding chamber, a separating cylinder and a cleaning machine, wherein a feed inlet is formed in the top of the shredding chamber, a plastic shredding mechanism is arranged in the shredding chamber, and a first discharge outlet is formed in the bottom of the shredding chamber;
The separating cylinder comprises a plastic conveying cylinder, a feeding cylinder and a net cylinder which are coaxially and obliquely arranged, wherein the plastic conveying cylinder, the feeding cylinder and the net cylinder are sequentially arranged from top to bottom, the top of the feeding cylinder is provided with a feeding bin, and the feeding bin is connected with a first discharge hole; the lower end of the plastic conveying cylinder is fixedly connected with the upper end of the feeding cylinder, the upper end of the plastic conveying cylinder is connected with an upper jacket, the bottom of the upper jacket is provided with a plastic outlet, and the plastic outlet is connected with the cleaning machine; the upper end of the net barrel is in running fit with the lower end of the feeding barrel, a blowing mechanism is arranged in the lower port of the net barrel, a lower jacket in running fit with the net barrel is arranged on the outer wall of the lower part of the net barrel, a second discharge port is arranged on the net barrel in the lower jacket, a third discharge port is arranged at the bottom of the lower jacket, and the net barrel is connected with a first rotary driving mechanism for driving the net barrel to rotate; the outer wall of the feeding cylinder is provided with a circular positioning ring plate, a collecting sleeve is fixedly arranged between the positioning ring plate and the lower jacket, the collecting sleeve is positioned outside the net cylinder, a space is reserved between the collecting sleeve and the net cylinder, and the side wall of the lower jacket is provided with a communication port for communicating the collecting sleeve with the inner cavity of the lower jacket.
Further, the first discharge port is connected with the feeding bin through a connecting cylinder, and a beating mechanism is arranged in the connecting cylinder.
Further, the plastic shredding mechanism comprises a horizontal first rotary drum and a horizontal second rotary drum, wherein the center line of the first rotary drum and the center line of the second rotary drum are positioned on the same horizontal plane, and a space is reserved between the first rotary drum and the second rotary drum; the first rotary drum is connected with a second rotary driving mechanism for driving the first rotary drum to rotate, the second rotary drum is connected with a third rotary driving mechanism for driving the second rotary drum to rotate, and the rotation direction of the first rotary drum is opposite to that of the second rotary drum; the cylinder body of the first rotary cylinder is provided with a plurality of first spike groups, and each first spike group comprises a plurality of first spikes uniformly distributed along the circumferential direction of the first rotary cylinder; the cylinder body of the second rotary cylinder is provided with a plurality of second spike groups, each second spike group comprises a plurality of second spikes uniformly distributed along the circumferential direction of the second rotary cylinder, and the first spike groups and the second spike groups are staggered; a first scraping plate is arranged on one side, far away from the second rotary drum, of the first rotary drum, and a first scraping groove for a first spike to pass through is formed in the side, facing the first rotary drum, of the first scraping plate; a second scraping plate is arranged on one side, far away from the first rotating cylinder, of the second rotating cylinder, and a second scraping groove for a second spike to pass through is formed in the side, facing the second rotating cylinder, of the second scraping plate.
Further, the first spike penetrates through the wall of the first rotary drum and is in sliding fit with the wall of the first rotary drum, and the first spike is connected with a first driving assembly for driving the first spike to radially move;
The second spike penetrates through the wall of the second rotary drum and is in sliding fit with the wall of the second rotary drum, and the second spike is connected with a second driving assembly for driving the second spike to move radially.
Further, the first driving assembly comprises a first driving shaft, a first pin shaft is arranged at one end of the first spike positioned in the first rotating cylinder, a first fixed ring plate and a first rotating plate are arranged at two sides of the first pin shaft, a first guide groove extending radially is formed in the first fixed ring plate, an arc-shaped first driving groove is formed in the first rotating plate, one end of the first pin shaft is positioned in the first guide groove and is in sliding fit with the first guide groove, the other end of the first pin shaft is positioned in the first driving groove and is in sliding fit with the first driving groove, the first rotating plates are arranged on the first driving shaft, and a fourth rotating driving mechanism for driving the first driving shaft to rotate is connected to the first driving shaft;
The second drive assembly comprises a second drive shaft, a second spike is arranged at one end of the second rotary drum, a second pin shaft is arranged at one end of the second spike, a second fixed ring plate and a second rotating plate are arranged at two sides of the second pin shaft, a second guide groove extending radially is formed in the second fixed ring plate, an arc-shaped second drive groove is formed in the second rotating plate, one end of the second pin shaft is arranged in the second guide groove and is in sliding fit with the second guide groove, the other end of the second pin shaft is arranged in the second drive groove and is in sliding fit with the second drive groove, the second rotating plates are all arranged on the second drive shaft, and a fifth rotating drive mechanism for driving the second drive shaft to rotate is connected with the second drive shaft.
Further, the fourth rotation driving mechanism and the fifth rotation driving mechanism are both stepper motors.
Further, the cleaning machine comprises a cleaning tank, cleaning water is arranged in the cleaning tank, one end of the cleaning tank is provided with a horizontal rotating shaft and a water inlet, the rotating shaft is located at the liquid level of the cleaning water, a plurality of net plates are arranged on the rotating shaft, an aeration mechanism is arranged at the bottom of the cleaning tank, a water outlet is formed in the other end of the cleaning tank, and the water outlet is connected with a screw extruder.
Further, screw extruder includes the recipient, be provided with the extrusion axle in the recipient, be provided with the screw conveyer piece on the extrusion axle, the end connection of extrusion axle has sixth rotation actuating mechanism, the end connection of recipient has the plastics calandria, the plastics calandria is round platform shape, and the big end of plastics calandria links to each other with the recipient, all be provided with a plurality of wash ports on recipient and the plastics calandria.
Further, a water collecting tank is arranged below the extrusion cylinder and the plastic calandria, a circulating pump is arranged in the water collecting tank, and the circulating pump is connected with the water inlet through a circulating pipe.
Further, the bottom of the cleaning tank is V-shaped, and a sewage pump is arranged at the bottom of the cleaning tank.
The beneficial effects of the invention are as follows:
1. The plastic film in the waste residue is firstly shredded by the plastic shredding mechanism, so that large plastic films are prevented from being intertwined and not easy to separate, meanwhile, the plastic films are prevented from wrapping dust, sediment, metal and other impurities, the plastic films are ensured to be fully separated from the sediment, the metal and the like, and then, the plastic is cleaned, so that fine dust attached to the plastic can be removed, the cleanliness of the recycled plastic is improved, and the impurity content is low.
2. The invention firstly removes impurities such as metal, sediment and the like through the separating cylinder, and then cleans the plastic, compared with the prior art which directly cleans the plastic, the concentration of the pollutants in the cleaning water is lower due to the lower impurity content, and the cleaning water can be reused after being filtered.
3. The separating cylinder provided by the invention can be used for rapidly and effectively separating plastics and other impurities, and has the advantages of high efficiency and good separation effect.
Drawings
FIG. 1 is a schematic overall front view of the present invention;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is a schematic cross-sectional view of B-B of FIG. 2;
FIG. 4 is an enlarged schematic view of portion C of FIG. 3;
FIG. 5 is an enlarged schematic view of portion D of FIG. 3;
FIG. 6 is a schematic view of the installation of the first retaining ring plate;
FIG. 7 is a schematic view of the installation of a first rotating plate;
FIG. 8 is a schematic view of the installation of a second retaining ring plate;
FIG. 9 is a schematic view of the installation of a second rotating plate;
FIG. 10 is an enlarged schematic view of portion E of FIG. 1
FIG. 11 is a schematic side view of a wash tank;
reference numerals: 1-shredding chamber; 2-a feed inlet; 3-a first discharge hole; 4-a plastic conveying cylinder; 5-a feeding cylinder; 6, a net drum; 7, a feeding bin; 8-upper jacket; 9-a plastic outlet; 10-an air blowing mechanism; 11-lower jacket; 12-a second discharge hole; 13-a third discharge port; 14-a first rotary drive mechanism; 15, collecting the sleeve; 16-positioning ring plates; 17-a communication port; 18-connecting the cylinders; 19—a beating mechanism; 20-a first drum; 21-a second drum; 22-a second rotary drive mechanism; 23-a third rotary drive mechanism; 24-a first spike group; 25-a second spike group; 26-a first scraper; 27-a second scraper; 28-a first pin; 29-a first fixed ring plate; 30—a first rotating plate; 31-a first guide groove; 32-a first drive slot; 33-a first drive shaft; 34-a fourth rotary drive mechanism; 35-a second pin; 36-a second fixed ring plate; 37-a second rotating plate; 38-a second guide groove; 39-a second drive slot; 40-a second drive shaft; 41-a fifth rotary drive mechanism; 42-a cleaning pool; 43-a rotating shaft; 44-a screen; 45-an aeration mechanism; 46-water outlet; 47-screw extruder; 48-water inlet; 49-an extrusion shaft; 50-spiral conveying sheets; 52-a sixth rotary drive mechanism; 53-a sixth rotational drive mechanism; 54-a water collecting tank; 55-a circulation pump; 56-circulation pipe; 57-a sewage pump.
Detailed Description
The invention will be further described with reference to the drawings and examples.
The device for recycling plastic from papermaking waste residues comprises a shredding chamber 1, a separating cylinder and a cleaning machine, wherein a feed inlet 2 is formed in the top of the shredding chamber 1, a plastic shredding mechanism is arranged in the shredding chamber 1, and a first discharge outlet 3 is formed in the bottom of the shredding chamber 1.
The shredding chamber 1 is used for shredding plastics in papermaking waste residues, and because plastics in the papermaking waste residues generally exist in the form of plastic films, part of the plastic films are large in area and easy to intertwine and wrap impurities, the plastic films are shredded by the plastic shredding mechanism in the shredding chamber 1, and the large plastic films are shredded into small pieces so as to separate the plastic films more effectively, and the carrying amount of the impurities is reduced.
The separating cylinder is used for separating the plastics from the papermaking waste residues, and the cleaning machine is used for cleaning the separated plastics.
Specifically, the separating cylinder comprises a plastic conveying cylinder 4, a feeding cylinder 5 and a net cylinder 6 which are coaxially and obliquely arranged, wherein the plastic conveying cylinder 4, the feeding cylinder 5 and the net cylinder 6 are sequentially arranged from top to bottom, the top of the feeding cylinder 5 is provided with a feeding bin 7, and the feeding bin 7 is connected with the first discharge port 3; the lower end of the plastic conveying cylinder 4 is fixedly connected with the upper end of the feeding cylinder 5, the upper end of the plastic conveying cylinder 4 is connected with an upper jacket 8, the bottom of the upper jacket 8 is provided with a plastic outlet 9, and the plastic outlet 9 is connected with a cleaning machine; the upper end of the net drum 6 is in running fit with the lower end of the feeding drum 5, a blowing mechanism 10 is arranged in the lower port of the net drum 6, a lower jacket 11 in running fit with the net drum 6 is arranged on the outer wall of the lower part of the net drum 6, a second discharge port 12 is arranged on the net drum 6 in the lower jacket 11, a third discharge port 13 is arranged at the bottom of the lower jacket 11, and the net drum 6 is connected with a first rotary driving mechanism 14 for driving the net drum 6 to rotate; the outer wall of the feeding cylinder 5 is provided with a circular positioning ring plate 16, a collecting sleeve 15 is fixedly arranged between the positioning ring plate 16 and the lower jacket 11, the collecting sleeve 15 is positioned outside the net cylinder 6, a space is reserved between the collecting sleeve 15 and the net cylinder 6, and the side wall of the lower jacket 11 is provided with a communication port 17 for communicating the collecting sleeve 15 with the inner cavity of the lower jacket 11.
The feeding cylinder 5 is a round cylinder body, and specifically, a stainless steel cylinder body can be adopted, and a filtering hole is not arranged on the cylinder wall of the feeding cylinder 5. The feeding bin 7 is used for feeding papermaking waste residues. The net drum 6 can be a steel wire net drum, and a plurality of filtering holes are formed in the net drum 6, so that small-particle sediment, metal particles and the like can be separated. The upper and lower ends of the net drum 6 may be provided with metal mounting drums so as to connect the upper and lower ends of the net drum 6 to the feeding drum 5 and the lower jacket 11, respectively. The net drum 6 is in rotary fit with the feeding drum 5 and the net drum 6 is in rotary fit with the lower jacket 11, namely the net drum 6 can rotate around the central line of the net drum. The first rotation driving mechanism 14 is used for driving the net drum 6 to rotate, and the first rotation driving mechanism 14 can specifically adopt a gear motor and other devices. The blowing mechanism 10 can generate larger wind force, the air outlet direction of the blowing mechanism 10 is consistent with the axial direction of the net drum 6, and the plastic film is light and can be separated under the action of wind force. The blowing mechanism 10 may specifically be a fan or the like. The collecting sleeve 15 is used for collecting small-particle sediment, metal and other impurities separated from the net drum 6, and the collecting sleeve 15 is also obliquely arranged, so that solid particles in the collecting sleeve 15 can slide down along the collecting sleeve 15 into the lower jacket 11. The inclination angle of the separating cylinder is 3 to 5 degrees. The plastic conveying cylinder 4, the feeding cylinder 5, the upper jacket 8, the lower jacket 11 and the collecting sleeve 15 are fixedly arranged, and when the net cylinder 6 rotates, the plastic conveying cylinder 4, the feeding cylinder 5, the upper jacket 8, the lower jacket 11 and the collecting sleeve 15 are kept fixed.
The specific working process of the separating cylinder comprises the following steps: the first rotary driving mechanism 14 is utilized to drive the net drum 6 to rotate, and meanwhile, the blowing mechanism 10 is started, and the blowing mechanism 10 blows air upwards along the axial direction of the net drum 6. The paper making waste residue after shredding is discharged out of the shredding chamber 1 through the first discharge hole 3, and enters the feeding cylinder 5 through the feeding bin 7, most of the plastic film enters the plastic conveying cylinder 4 along with the air flow, then enters the upper jacket 8 and finally is discharged from the plastic outlet 9, a small part of the plastic film slides down into the net cylinder 6 along with other components in the paper making waste residue, such as silt, metal and the like, and the net cylinder 6 continuously rotates to drive the other components to continuously roll, so that the residual plastic film in the other components can be separated again and enter the plastic conveying cylinder 4 along with the air flow upwards, and meanwhile, particles with smaller volumes in the other components fall into the collecting sleeve 15 through the filtering holes of the net cylinder 6. Because the net drum 6 is obliquely arranged, waste residues in the net drum 6 roll downwards gradually, and along with the separation of small particle impurities, the waste residue amount in the net drum 6 is gradually reduced from top to bottom, after the waste residue amount is reduced, the residual plastic film is exposed more easily and is separated out under the action of wind force, so that the plastic in the waste residues is guaranteed to be fully separated, and the recovery rate of the plastic is improved. Other components in the net drum 6 enter the lower jacket 11 through the second discharge port 12, other components in the collecting sleeve 15 enter the lower jacket 11 through the communication port 17, the other components and the collecting sleeve are mixed in the lower jacket 11 and then discharged through the third discharge port 13, and metals in other components can be recovered through a magnetic separation mode. When papermaking waste residue just enters the feeding cylinder 5, a small amount of impurities such as dust with smaller volume can enter the plastic conveying cylinder 4 under the action of wind force, the plastic conveying cylinder 4 has a certain length, for example, the length is 0.6 to 1m, and because the wind force is gradually weakened, after the dust entering the plastic conveying cylinder 4 moves for a certain distance, part of dust with larger volume can gradually settle to the bottom of an inner hole of the plastic conveying cylinder 4, and the dust can not directly enter the upper jacket 8 along with the plastic film, so that the dust amount carried by the plastic film is reduced.
In order to further ensure the effective separation of the plastics, the first discharge opening 3 is connected with the feed bin 7 by a connecting tube 18, and a beating mechanism 19 is arranged in the connecting tube 18. The beating mechanism 19 may adopt a vertical beating shaft, a plurality of beating rods are arranged on the beating shaft, and the beating rods are connected with a beating motor. The papermaking waste residue after shredding enters the connecting cylinder 18, then moves downwards along the connecting cylinder 18, at the moment, the beating motor is utilized to drive the beating shaft and the beating rod to rotate, and the beating rod can beat the papermaking waste residue, so that the papermaking waste residue is scattered, and meanwhile, impurities adhered to the plastic film can be separated.
At present, multiple plastic shredding devices exist, and the invention can adopt the prior art, but the prior art has the problems of insufficient shredding and easy winding of plastic films on a shredding mechanism. As a preferred embodiment, the plastic shredder of the present invention comprises a first horizontal drum 20 and a second horizontal drum 21, the center line of the first drum 20 and the center line of the second drum 21 being in the same horizontal plane, and a space being provided between the first drum 20 and the second drum 21; the first rotary drum 20 is connected with a second rotary driving mechanism 22 for driving the first rotary drum 20 to rotate, the second rotary drum 21 is connected with a third rotary driving mechanism 23 for driving the second rotary drum 21 to rotate, and the rotation direction of the first rotary drum 20 is opposite to the rotation direction of the second rotary drum 21; the barrel body of the first rotary barrel 20 is provided with a plurality of first spike groups 24, and each first spike group 24 comprises a plurality of first spikes uniformly distributed along the circumferential direction of the first rotary barrel 20; the barrel body of the second rotary drum 21 is provided with a plurality of second spike groups 25, each second spike group 25 comprises a plurality of second spikes uniformly distributed along the circumferential direction of the second rotary drum 21, and the first spike groups 24 and the second spike groups 25 are staggered; a first scraping plate 26 is arranged on one side of the first rotary drum 20 far away from the second rotary drum 21, and a first scraping groove for the first spike to pass through is arranged on the side of the first scraping plate 26 facing the first rotary drum 20; a second scraper 27 is provided on the side of the second drum 21 remote from the first drum 20, and a second scraping groove through which the second spike passes is provided on the side of the second scraper 27 facing the second drum 21.
The first drum 20 and the second drum 21 are hollow cylinders, and weight can be reduced. The spacing between the first drum 20 and the second drum 21 is appropriate to ensure that papermaking sludge can pass through the spacing. The first spike and the second spike are connected at one end to the first drum 20 or the second drum 21 and at the other end are tapered tips capable of piercing the plastic film. The length direction of the first spike coincides with the radial direction of the first drum 20, and the length direction of the second spike coincides with the radial direction of the second drum 21. The tip of the first spike has a smaller spacing (e.g., 0.5 cm) from the second drum 21 when the first spike is rotated to be directed horizontally toward the second drum 21, and a smaller spacing (e.g., 0.5 cm) from the first drum 20 when the second spike is rotated to be directed horizontally toward the first drum 20, to ensure that the first spike and the second spike can effectively penetrate the plastic film between the first drum 20 and the second drum 21.
When the equipment works, the second rotary driving mechanism 22 drives the first rotary drum 20 to rotate, and the third rotary driving mechanism 23 drives the second rotary drum 21 to rotate, and the rotation speeds of the second rotary drum and the third rotary driving mechanism can be the same or different. The papermaking waste residue is put into the shredding chamber 1 from the feed inlet 2, falls on the first rotary drum 20 and the second rotary drum 21, and enters between the first rotary drum 20 and the second rotary drum 21 along with the rotation of the first rotary drum 20 and the second rotary drum 21, at this time, the first spike and the second spike penetrate into the plastic film, and when the plastic film is large, the same piece of plastic film is penetrated by the first spike and the second spike simultaneously. When the papermaking sludge moves below the first drum 20 and the second drum 21, since the rotation directions of the first drum 20 and the second drum 21 are opposite, the first spike and the second spike move in opposite directions, and if the same piece of plastic film is simultaneously pierced by the first spike and the second spike, it is torn.
After tearing, part of the plastic film falls down into the first discharge hole 3, and part of the plastic film stays on the first spike or the second spike, in order to ensure the tearing effect and promote the plastic film on the first spike and the second spike to fall off, the invention also provides a first scraping plate 26 and a second scraping plate 27, the shape of the first scraping groove on the first scraping plate 26 is matched with that of the first spike, the shape of the second scraping groove on the second scraping plate 27 is matched with that of the second spike, when the first spike passes through the first scraping groove, a tiny space is reserved between the first spike and the side wall of the first scraping groove, and when the second spike passes through the second scraping groove, a tiny space is reserved between the second spike and the second scraping groove, so that if the plastic film remains on the first spike and the second spike, when the first spike and the second spike pass through the first scraping groove and the second scraping groove, the side wall of the first scraping groove and the second scraping groove can exert scraping force on the first spike and the second spike to promote the plastic film to separate from the second spike and the second spike. In addition, if the length of the plastic film is large and the length direction of the plastic is consistent with the axial direction of the first drum 20 and the second drum 21, when the plastic is torn, the width of the plastic possibly torn becomes small, but the length is still relatively large, when the plastic reaches the first scraping plate 26 or the second scraping plate 27, the first scraping plate 26 or the second scraping plate 27 can tear the plastic off, the length of the plastic is reduced, and a better shredding effect is achieved.
Even if the first scraping plate 26 or the second scraping plate 27 is arranged, a small amount of plastic stays on the first spike and the second spike and is difficult to fall off automatically, in order to clean off the plastic which is difficult to fall off regularly, the first spike penetrates through the cylinder wall of the first rotary cylinder 20 and is in sliding fit with the cylinder wall of the first rotary cylinder 20, and a first driving component for driving the first spike to move radially is connected to the first spike. The first spike is in sliding fit with the first rotary drum 20, that is, the first spike can slide along the radial direction of the first rotary drum 20, when the first spike slides towards the inside of the first rotary drum 20 and enters the first rotary drum 20, the plastic wound on the first spike stays outside the first rotary drum 20 due to the blocking of the outer wall of the first rotary drum 20, so that the separation of the plastic and the first spike is realized. The first driving component is used for driving the first spike to move, when the plastic needs to be cleaned, the first driving component drives the first spike to enter the first rotary drum 20, and when the plastic falls off, the first driving component drives the first spike to extend out of the first rotary drum 20.
Similarly, the second spike penetrates through the wall of the second rotary drum 21 and is in sliding fit with the wall of the second rotary drum 21, and the second spike is connected with a second driving assembly for driving the second spike to radially move.
The first driving assembly specifically includes a first driving shaft 33, a first pin shaft 28 is disposed at one end of the first spike located inside the first rotating cylinder 20, a first fixing ring plate 29 and a first rotating plate 30 are disposed on two sides of the first pin shaft 28, and the first fixing ring plate 29 is in a ring shape and is fixed on an inner wall of the first rotating cylinder 20. The first fixed ring plate 29 is provided with a first guide groove 31 extending radially, the first rotating plate 30 is provided with an arc-shaped first driving groove 32, one end of the first pin shaft 28 is located in the first guide groove 31 and is in sliding fit with the first guide groove 31, the other end of the first pin shaft 28 is located in the first driving groove 32 and is in sliding fit with the first driving groove 32, the first rotating plate 30 is installed on the first driving shaft 33, and the first driving shaft 33 is connected with a fourth rotating driving mechanism 34 for driving the first driving shaft 33 to rotate. The distances from the two ends of the first driving groove 32 to the first driving shaft 33 are different, when the first driving shaft 33 drives the first rotating plate 30 to rotate, the first rotating plate 30 can push the first pin shaft 28 to move radially along the first guiding groove 31, and the first pin shaft 28 drives the first spike to move axially.
Similarly, the second driving assembly includes a second driving shaft 40, a second pin shaft 35 is disposed at one end of the second spike located inside the second drum 21, and a second fixing ring plate 36 and a second rotating plate 37 are disposed at two sides of the second pin shaft 35, where the second fixing ring plate 36 is in a ring shape and is fixed on the inner wall of the second drum 21. The second fixed ring plate 36 is provided with a second guide groove 38 extending radially, the second rotating plate 37 is provided with an arc-shaped second driving groove 39, one end of the second pin shaft 35 is positioned in the second guide groove 38 and is in sliding fit with the second guide groove 38, the other end of the second pin shaft 35 is positioned in the second driving groove 39 and is in sliding fit with the second driving groove 39, the second rotating plate 37 is arranged on the second driving shaft 40, and the second driving shaft 40 is connected with a fifth rotating driving mechanism 41 for driving the second driving shaft 40 to rotate.
The first drum 20 and the second drum 21 are provided with a supporting frame in both end ports, and both ends of the first driving shaft 33 and the second driving shaft 40 are mounted to the supporting frame. The fourth rotation driving mechanism 34 and the fifth rotation driving mechanism 41 are each stepping motors. When the first drum 20 and the second drum 21 are rotated, the first driving shaft 33 is rotated in synchronization with the first drum 20, and the second driving shaft 40 is rotated in synchronization with the second drum 21.
The cleaning machine is used for cleaning away impurities such as dust attached to the surface of the plastic. The cleaning machine can adopt the existing plastic cleaning equipment, such as a pool structure disclosed by CN201811016131.3, waste residues are placed into a cleaning tank from a feed inlet, impurities can sink quickly, but the density of plastic films is very small, a plurality of plastic films float on the water surface and cannot completely enter water, so that the plastic films are difficult to clean sufficiently, and dust on the surfaces of the plastic films is difficult to remove sufficiently. In order to solve the problem, the cleaning machine of the invention comprises a cleaning tank 42, wherein cleaning water is arranged in the cleaning tank 42, one end of the cleaning tank 42 is provided with a horizontal rotating shaft 43 and a water inlet 48, the rotating shaft 43 is positioned at the liquid level of the cleaning water, a plurality of net plates 44 are arranged on the rotating shaft 43, an aeration mechanism 45 is arranged at the bottom of the cleaning tank 42, the other end of the cleaning tank 42 is provided with a water outlet 46, and the water outlet 46 is connected with a screw extruder 47. The cleaning tank 42 may be a concrete tank or a metal tank. The washing water may be ordinary tap water, or a suitable detergent may be added to the washing water. One end of the cleaning tank 42 is provided with a water inlet 48, the other end is provided with a water outlet 46, the water outlet 46 is positioned at the liquid level of the cleaning water, the gap of the side wall of the cleaning tank 42 can be formed, the water outlet 46 is lower than the water inlet 48, and during cleaning, the cleaning water continuously enters the cleaning tank 42 through the water inlet 48, and meanwhile, the cleaning water in the cleaning tank 42 is continuously discharged through the water outlet 46, so that the cleaning water in the cleaning tank 42 is always in a flowing state. The rotating shaft 43 is connected with a speed reducing motor, the speed reducing motor can drive the rotating shaft 43 to rotate at a constant speed, and the rotating shaft 43 drives the screen 44 to rotate. A feeding space is formed between the water inlet 48 and the rotating shaft 43, and the screen 44 can cover the feeding space when rotated to a horizontal position. The plastic outlet 9 is connected with a conveying pipeline, and the outlet of the conveying pipeline is positioned above the feeding space. The plastic is conveyed to the liquid level of the cleaning water in the feeding space by the conveying pipeline, when the rotating shaft 43 drives the screen plate 44 to rotate, the screen plate 44 reaches the liquid level of the cleaning water in the feeding space and then continues to rotate downwards, so that the plastic on the liquid level is driven to completely enter the cleaning water, and the cleaning water flows from the water inlet 48 to the water outlet 46, so that the plastic is driven to move towards the water outlet 46. The aeration mechanism 45 is started, the aeration mechanism 45 introduces external air into the bottom of the cleaning tank 42, the air becomes bubbles after entering water and flows upwards, impact is generated on plastics, dust on the surfaces of the plastics is driven to be removed, meanwhile, the plastics are driven to reach the surfaces of the cleaning water again, finally, the plastics are extruded by the screw extruder 47 along with the flowing of the cleaning water to the water outlet 46 and enter the screw extruder 47, and the water content in the plastics is reduced.
The screw extruder 47 specifically includes an extrusion cylinder, an extrusion shaft 49 is disposed in the extrusion cylinder, a screw conveying sheet 50 is disposed on the extrusion shaft 49, a sixth rotation driving mechanism 52 is connected to an end of the extrusion shaft 49, a plastic calandria 53 is connected to an end of the extrusion cylinder, the plastic calandria 53 is in a shape of a circular table, a large end of the plastic calandria 53 is connected to the extrusion cylinder, and a plurality of drain holes are disposed on the extrusion cylinder and the plastic calandria 53. The extrusion cylinder is a cylinder, and the sixth rotation driving mechanism 52 may adopt a motor, and the sixth rotation driving mechanism 52, the extrusion shaft 49 and the screw conveying sheet 50 form a screw conveying mechanism, so as to drive the plastic to axially move in the extrusion cylinder. Since the squeeze tube and the plastic drain tube 53 are provided with a plurality of drain holes, water in the plastic is discharged through the drain holes. When the plastic moves to the plastic calandria 53, the plastic calandria 53 can be gradually extruded due to the gradual decrease of the inner diameter of the plastic calandria 53, most of the moisture in the plastic is extruded, the plastic is finally discharged from the port of the plastic calandria 53, and the plastic can be reused after drying.
In order to reduce water consumption, a water collecting tank 54 is arranged below the extrusion cylinder and the plastic calandria 53, a circulating pump 55 is arranged in the water collecting tank 54, and the circulating pump 55 is connected with the water inlet 48 through a circulating pipe 56. The cleaning water discharged from the drain hole flows downwards into the water collecting tank 54, and the circulating pump 55 can convey the water in the water collecting tank 54 to the cleaning tank 42, so that the recycling is realized.
The aeration mechanism 45 and the water outlet 46 are provided with a certain interval, dust attached to plastics is washed off and then enters the cleaning water, the dust can be deposited to the bottom of the cleaning tank 42 at the aeration mechanism 45 and the water outlet 46, the bottom of the cleaning tank 42 is V-shaped for cleaning deposited substances, and a sewage pump 57 is arranged at the bottom of the cleaning tank 42. The drain pump 57 may be periodically turned on to drain sediment from the bottom of the wash tank 42.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. Retrieve device of plastics in follow papermaking waste residue, its characterized in that: the novel shredding machine comprises a shredding chamber (1), a separating cylinder and a cleaning machine, wherein a feed inlet (2) is formed in the top of the shredding chamber (1), a plastic shredding mechanism is arranged in the shredding chamber (1), and a first discharge outlet (3) is formed in the bottom of the shredding chamber (1);
The separating cylinder comprises a plastic conveying cylinder (4), a feeding cylinder (5) and a net cylinder (6) which are coaxially and obliquely arranged, wherein the plastic conveying cylinder (4), the feeding cylinder (5) and the net cylinder (6) are sequentially arranged from top to bottom, a feeding bin (7) is arranged at the top of the feeding cylinder (5), and the feeding bin (7) is connected with the first discharging hole (3); the lower end of the plastic conveying cylinder (4) is fixedly connected with the upper end of the feeding cylinder (5), the upper end of the plastic conveying cylinder (4) is connected with an upper jacket (8), the bottom of the upper jacket (8) is provided with a plastic outlet (9), and the plastic outlet (9) is connected with a cleaning machine; the upper end of the net barrel (6) is in running fit with the lower end of the feeding barrel (5), a blowing mechanism (10) is arranged in the lower port of the net barrel (6), a lower jacket (11) in running fit with the net barrel (6) is arranged on the outer wall of the lower part of the net barrel (6), a second discharge port (12) is arranged on the net barrel (6) in the lower jacket (11), a third discharge port (13) is arranged at the bottom of the lower jacket (11), and a first rotary driving mechanism (14) for driving the net barrel (6) to rotate is connected with the net barrel (6); the feeding device is characterized in that a circular positioning ring plate (16) is arranged on the outer wall of the feeding cylinder (5), a collecting sleeve (15) is fixedly arranged between the positioning ring plate (16) and the lower jacket (11), the collecting sleeve (15) is positioned outside the net cylinder (6), a space is reserved between the collecting sleeve (15) and the net cylinder (6), and a communication port (17) for communicating the collecting sleeve (15) with the inner cavity of the lower jacket (11) is formed in the side wall of the lower jacket (11);
The plastic shredding mechanism comprises a horizontal first rotary drum (20) and a horizontal second rotary drum (21), wherein the central line of the first rotary drum (20) and the central line of the second rotary drum (21) are positioned on the same horizontal plane, and a space is reserved between the first rotary drum (20) and the second rotary drum (21); the first rotary drum (20) is connected with a second rotary driving mechanism (22) for driving the first rotary drum (20) to rotate, the second rotary drum (21) is connected with a third rotary driving mechanism (23) for driving the second rotary drum (21) to rotate, and the rotation direction of the first rotary drum (20) is opposite to the rotation direction of the second rotary drum (21); a plurality of first spike groups (24) are arranged on the cylinder body of the first rotary cylinder (20), and each first spike group (24) comprises a plurality of first spikes uniformly distributed along the circumferential direction of the first rotary cylinder (20); a plurality of second spike groups (25) are arranged on the barrel body of the second rotary drum (21), each second spike group (25) comprises a plurality of second spikes uniformly distributed along the circumferential direction of the second rotary drum (21), and the first spike groups (24) and the second spike groups (25) are arranged in a staggered manner; a first scraping plate (26) is arranged on one side, far away from the second rotary drum (21), of the first rotary drum (20), and a first scraping groove for a first spike to pass through is formed in the side, facing the first rotary drum (20), of the first scraping plate (26); a second scraping plate (27) is arranged on one side, far away from the first rotary drum (20), of the second rotary drum (21), and a second scraping groove for a second spike to pass through is formed in the side, facing the second rotary drum (21), of the second scraping plate (27);
The first spike penetrates through the cylinder wall of the first rotary cylinder (20) and is in sliding fit with the cylinder wall of the first rotary cylinder (20), and the first spike is connected with a first driving assembly for driving the first spike to radially move;
The second spike penetrates through the cylinder wall of the second rotary cylinder (21) and is in sliding fit with the cylinder wall of the second rotary cylinder (21), and the second spike is connected with a second driving assembly for driving the second spike to radially move;
The first driving assembly comprises a first driving shaft (33), one end of the first spike, which is positioned in the first rotating cylinder (20), is provided with a first pin shaft (28), two sides of the first pin shaft (28) are provided with a first fixed ring plate (29) and a first rotating plate (30), the first fixed ring plate (29) is provided with a first guide groove (31) which extends radially, the first rotating plate (30) is provided with a first arc-shaped driving groove (32), one end of the first pin shaft (28) is positioned in the first guide groove (31) and is in sliding fit with the first guide groove (31), the other end of the first pin shaft (28) is positioned in the first driving groove (32) and is in sliding fit with the first driving groove (32), the first rotating plates (30) are all arranged on the first driving shaft (33), and the first driving shaft (33) is connected with a fourth rotating driving mechanism (34) which drives the first driving shaft (33) to rotate;
The second drive assembly comprises a second drive shaft (40), a second pin shaft (35) is arranged at one end of the second rotary drum (21), second fixed ring plates (36) and second rotating plates (37) are arranged on two sides of the second pin shaft (35), second guide grooves (38) extending radially are arranged on the second fixed ring plates (36), arc-shaped second drive grooves (39) are arranged on the second rotating plates (37), one end of the second pin shaft (35) is located in the second guide grooves (38) and is in sliding fit with the second guide grooves (38), the other end of the second pin shaft (35) is located in the second drive grooves (39) and is in sliding fit with the second drive grooves (39), the second rotating plates (37) are all arranged on the second drive shaft (40), and a fifth rotating drive mechanism (41) for driving the second drive shaft (40) to rotate is connected to the second drive shaft (40).
2. An apparatus for recovering plastic from papermaking sludge as claimed in claim 1, wherein: the first discharging hole (3) is connected with the feeding bin (7) through a connecting cylinder (18), and a beating mechanism (19) is arranged in the connecting cylinder (18).
3. An apparatus for recovering plastic from papermaking sludge as claimed in claim 1, wherein: the fourth rotation driving mechanism (34) and the fifth rotation driving mechanism (41) are stepping motors.
4. The apparatus for recovering plastic from papermaking sludge as claimed in claim 1,2 or 3, wherein: the cleaning machine comprises a cleaning tank (42), cleaning water is arranged in the cleaning tank (42), a horizontal rotating shaft (43) and a water inlet (48) are arranged at one end of the cleaning tank (42), the rotating shaft (43) is located at the liquid level of the cleaning water, a plurality of net plates (44) are arranged on the rotating shaft (43), an aeration mechanism (45) is arranged at the bottom of the cleaning tank (42), a water outlet (46) is arranged at the other end of the cleaning tank (42), and a screw extruder (47) is connected to the water outlet (46).
5. The apparatus for recovering plastic from papermaking sludge as claimed in claim 4, wherein: screw extruder (47) are including the recipient, be provided with extrusion axle (49) in the recipient, be provided with screw conveyer piece (50) on extrusion axle (49), the end connection of extrusion axle (49) has sixth rotation actuating mechanism (52), the end connection of recipient has plastics calandria (53), plastics calandria (53) are round platform shape, and the large end of plastics calandria (53) links to each other with the recipient, all be provided with a plurality of wash ports on recipient and the plastics calandria (53).
6. The apparatus for recovering plastic from papermaking sludge as claimed in claim 5, wherein: a water collecting tank (54) is arranged below the extrusion cylinder and the plastic calandria (53), a circulating pump (55) is arranged in the water collecting tank (54), and the circulating pump (55) is connected with the water inlet (48) through a circulating pipe (56).
7. The apparatus for recovering plastic from papermaking sludge as claimed in claim 4, wherein: the bottom of the cleaning tank (42) is V-shaped, and a sewage pump (57) is arranged at the bottom of the cleaning tank (42).
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| CN115871130A (en) * | 2022-09-20 | 2023-03-31 | 浙江爱斯克环境科技有限公司 | Waste film recovery system |
| CN116214775A (en) * | 2022-12-26 | 2023-06-06 | 安徽和佳医疗用品科技有限公司 | A device for crushing waste film materials used in the production of protective gloves |
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| JP6294032B2 (en) * | 2013-08-29 | 2018-03-14 | 日本製紙クレシア株式会社 | Method for separating plastic film from paper liquid container |
| CN207997475U (en) * | 2018-01-13 | 2018-10-23 | 惠州德昉包装材料有限公司 | A kind of PE plastic films recycling and processing device |
| CN113232199A (en) * | 2021-05-11 | 2021-08-10 | 吕长阳 | Comprehensive treatment system for recycling waste plastic bags |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115871130A (en) * | 2022-09-20 | 2023-03-31 | 浙江爱斯克环境科技有限公司 | Waste film recovery system |
| CN116214775A (en) * | 2022-12-26 | 2023-06-06 | 安徽和佳医疗用品科技有限公司 | A device for crushing waste film materials used in the production of protective gloves |
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