CN111304945B - Paper-making waste plastic cleaning and desizing process and equipment thereof - Google Patents
Paper-making waste plastic cleaning and desizing process and equipment thereof Download PDFInfo
- Publication number
- CN111304945B CN111304945B CN202010289649.5A CN202010289649A CN111304945B CN 111304945 B CN111304945 B CN 111304945B CN 202010289649 A CN202010289649 A CN 202010289649A CN 111304945 B CN111304945 B CN 111304945B
- Authority
- CN
- China
- Prior art keywords
- particle
- communicated
- conveying belt
- waste
- paper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004033 plastic Substances 0.000 title claims abstract description 102
- 229920003023 plastic Polymers 0.000 title claims abstract description 102
- 239000002699 waste material Substances 0.000 title claims abstract description 71
- 238000004140 cleaning Methods 0.000 title claims abstract description 50
- 238000009990 desizing Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000008569 process Effects 0.000 title claims abstract description 15
- 239000002245 particle Substances 0.000 claims abstract description 100
- 239000000047 product Substances 0.000 claims abstract description 71
- 239000007788 liquid Substances 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000000203 mixture Substances 0.000 claims abstract description 39
- 238000003860 storage Methods 0.000 claims abstract description 39
- 239000007787 solid Substances 0.000 claims abstract description 32
- 239000000126 substance Substances 0.000 claims abstract description 28
- 238000000926 separation method Methods 0.000 claims abstract description 19
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- 238000007599 discharging Methods 0.000 claims abstract description 17
- 239000012263 liquid product Substances 0.000 claims abstract description 6
- 239000012265 solid product Substances 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 68
- 238000012216 screening Methods 0.000 claims description 29
- 238000007885 magnetic separation Methods 0.000 claims description 20
- 239000012535 impurity Substances 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 238000007873 sieving Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- 239000010893 paper waste Substances 0.000 claims description 9
- 150000002739 metals Chemical class 0.000 claims description 7
- 238000011084 recovery Methods 0.000 abstract description 7
- 238000004064 recycling Methods 0.000 abstract description 5
- 239000000123 paper Substances 0.000 description 38
- 239000008187 granular material Substances 0.000 description 10
- 239000004744 fabric Substances 0.000 description 9
- 239000000835 fiber Substances 0.000 description 7
- 238000005406 washing Methods 0.000 description 7
- 230000005389 magnetism Effects 0.000 description 6
- 239000002761 deinking Substances 0.000 description 4
- 239000011344 liquid material Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012452 mother liquor Substances 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 241000233866 Fungi Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 229940051841 polyoxyethylene ether Drugs 0.000 description 1
- 229920000056 polyoxyethylene ether Polymers 0.000 description 1
- 229940096992 potassium oleate Drugs 0.000 description 1
- MLICVSDCCDDWMD-KVVVOXFISA-M potassium;(z)-octadec-9-enoate Chemical compound [K+].CCCCCCCC\C=C/CCCCCCCC([O-])=O MLICVSDCCDDWMD-KVVVOXFISA-M 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
- D21D5/06—Rotary screen-drums
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/32—Defibrating by other means of waste paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/34—Kneading or mixing; Pulpers
- D21B1/345—Pulpers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
-
- 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
-
- 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
- Y02W30/64—Paper recycling
Abstract
The invention belongs to the technical field of papermaking, and particularly relates to a cleaning and desizing process and equipment for waste plastic in papermaking. The invention comprises a cleaning water tank, wherein one end of the cleaning water tank is communicated with a sorting system, the other end of the cleaning water tank is communicated with a friction machine, a solid discharge port for discharging solid products and a liquid discharge port for discharging liquid products are arranged on the friction machine, the solid discharge port is communicated with a plastic product storage tank, and the liquid discharge port is communicated with a pulp product storage tank through a concentration assembly. According to the invention, the substances separated by the separation system are conveyed into the cleaning water tank to obtain the solid-liquid mixture, the solid-liquid mixture is separated into solid substances and liquid substances by the friction machine, the plastic product storage tank, the concentration assembly and the paper pulp product storage tank for storage for standby, the solid substances are used for manufacturing plastic products, and the liquid substances are used for manufacturing paper products, so that the quality and recovery rate of the manufactured paper products are ensured, the recycling of plastic particles is realized, and the resource utilization rate is improved.
Description
Technical Field
The invention belongs to the technical field of papermaking, and particularly relates to a cleaning and desizing process and equipment for waste plastic in papermaking.
Background
The components in the waste raw materials utilized in the papermaking industry are complex, for example, part of papermaking enterprises use high-strength waste, and the waste raw materials contain more impurities such as metal sheets, massive metals, wood, broken cloth and the like besides waste paper and waste plastics. In the prior art, waste raw materials are mainly treated by directly rinsing in a cleaning water tank, waste plastics in the rinsing tank are scattered in a stirring plate or a water needle mode, different specific gravities of each component in water are used for separation, and washing liquid is filtered and then concentrated to obtain stock pulp liquid for preparing paper products, but the production process leads to higher loss rate of paper fibers and lower recovery rate, more impurities are mixed in formulated paper products, and the quality of the paper products is still to be improved.
For example, chinese patent application discloses a method of making paper from waste paper [ application number: 201610532402.5, the invention patent application comprises the processes of crushing, deinking, removing impurities, decoloring, secondary impurity removal, forming and drying, and is characterized by comprising the following steps: crushing: heating the waste paper in a 60 ℃ constant-temperature water bath, adjusting the concentration to be 4% -6%, and adding the waste paper into a stirrer to crush the waste paper for 40min; deinking: deinking treatment is carried out by adopting a floatation washing method to separate ink particles from paper fibers, wherein the deinking agent is prepared by the following components in percentage by weight: 2:1 acrylonitrile-butadiene-styrene copolymer, potassium oleate and octylphenol polyoxyethylene ether; removing impurities: removing ink particles in the paper pulp and preventing large particle deposition; decoloring: bleaching paper pulp by using white rot fungi to improve the whiteness of the paper pulp, controlling the PH value to be 3-5 and the temperature to be 40 ℃; secondary impurity removal: removing ink microparticles in the bleached paper pulp again; and (3) forming: forming a wet paper web by a web feeding device; and (3) drying: the wet paper web enters a press part of a pressure shoe shape to be dehydrated and formed, so that the wet paper web is primarily dried, and the wet paper web after being pressed enters a dryer to be dried, and the finished paper is obtained after cutting.
The paper making method using waste paper as raw material has high purity requirement on raw material, and has no processing capability on waste raw material with complex components, so the problems are not solved yet.
Disclosure of Invention
The invention aims at providing a cleaning and desizing device for waste plastic of paper making, which can improve the quality and recovery rate of the paper product.
Another object of the present invention is to provide a process for cleaning and desizing waste plastic from paper manufacture which improves the quality and recovery of the paper product produced, in view of the above problems.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a paper grade (stock) waste plastic washs desizing equipment, includes washs the basin, washs basin one end intercommunication and has the sorting system, and the other end intercommunication has the friction machine, be equipped with the solid discharge gate that is used for discharging solid product and the liquid discharge gate that is used for discharging liquid product on the friction machine, the solid discharge gate intercommunication has the plastics product storage tank, the liquid discharge gate is linked together with paper pulp product storage tank through concentrating the subassembly.
In the above-mentioned paper-making waste plastic washs desizing equipment, the friction machine includes the friction machine shell body that inside has friction cavity, and the pivot that the surface cover was equipped with the blade disc rotates to be connected on the friction machine shell body, and pivot one end extends to in the friction cavity, blade disc and pivot fixed connection still are equipped with the sieve that the surface has screening hole in the friction cavity, the liquid discharge gate is linked together with friction cavity through the sieve, the solid discharge gate is linked together with the one end of friction cavity.
In the papermaking waste plastic cleaning and desizing equipment, the sieve plate is cylindrical and fixedly connected with the rotating shaft, a gap is formed between the outer surface of the sieve plate and the inner surface of the outer shell of the friction machine, and the gap is communicated with the liquid discharge port.
In the above-mentioned paper-making waste plastic washs desizing equipment, concentrated subassembly is including being located liquid discharge gate below and the filter layer that the slope set up, be equipped with the water catch bowl under the filter layer, pulp product storage tank is linked together with the one end of filter layer, and the filter layer is close to pulp product storage tank's one end in vertical direction highly be less than the filter layer and keep away from pulp product storage tank's one end in vertical direction highly.
In the above-mentioned paper-making waste plastics washs desizing equipment, the conveying system that sorting system includes and is linked together with the washing basin that is used for wasing waste plastics, conveying system includes the mixture conveyer belt, large granule conveyer belt and the tiny particle conveyer belt of mutual intercommunication, the mixture conveyer belt is equipped with in proper order along the direction of delivery and is used for the mechanism of scattering of discarded object and is used for the commentaries on classics drum sieve of sieving according to the particle diameter size with the discarded object after scattering, drum sieve and large granule conveyer belt and tiny particle conveyer belt homogeneous phase intercommunication, the large granule conveyer belt still is equipped with in proper order along the direction of delivery and is used for getting rid of the magnetism separating mechanism of magnetism metal in the large granule plastics and is used for getting rid of the artifical separation station of non-magnetism impurity in the large granule plastics, magnetism separating mechanism is located the top of large granule conveyer belt.
In the above-mentioned paper-making waste plastic washs desizing equipment, break up the mechanism and have the shell body of breaking up the cavity including inside, break up the cavity and be linked together with the mixture conveyer belt, break up still be equipped with in the cavity and break up the frame of being connected with shell body rotation, blade fixed connection is on the frame of breaking up, the blade is kept away from the one end of frame of breaking up and is followed the radial extension of frame of breaking up.
In the above-mentioned paper grade (stock) waste plastic washs desizing equipment, the rotary drum sieve includes screening casing and is located the rotatory screening mechanism of screening casing, rotatory screening mechanism is connected with the first driving motor drive of fixed connection on screening casing, be equipped with on the screening casing with the big granule conveyer belt be linked together first discharge gate and with the second discharge gate that the granule conveyer belt is linked together, first discharge gate is linked together with rotatory screening mechanism's tip, the second discharge gate is linked together with rotatory screening mechanism's side, rotatory screening mechanism includes the screen cloth that has the sieve mesh, the sieve mesh is linked together with first discharge gate, the screen cloth is the cylinder, and the screen cloth is through the cover drive transmission mechanism and the first driving motor drive connection of establishing at the screen cloth surface, screen cloth one end intercommunication has the auger machine that is used for the feeding, and the other end is linked together with the second discharge gate, drive transmission mechanism includes the annular rack of fixed connection at the screen cloth surface and the driving gear who is connected with first driving motor, annular rack meshes with driving gear.
In the above-mentioned paper-making waste plastic washs desizing equipment, magnetism separating mechanism includes the mounting bracket and connects the magnetic part on the mounting bracket, the magnetic part is located the mixture conveyer belt top, magnetism separating mechanism still includes the second driving motor with mounting bracket fixed connection, the second driving motor is connected with the magnetic part drive, the magnetic part rotates with the mounting bracket and is connected.
In the above-mentioned paper-making waste plastic washs desizing equipment, the manual sorting station includes operation platform, operation platform is located the both sides of large granule conveyer belt and operation platform extends along the direction of conveyance of large granule conveyer belt.
The paper-making waste plastic cleaning and desizing process by using the paper-making waste plastic cleaning and desizing equipment comprises the following steps:
step one: placing the waste to be treated on a mixture conveying belt, and conveying the waste to a scattering mechanism by using the mixture conveying belt to be scattered;
step two: the scattered waste in the first step is conveyed into a rotary drum sieve through a mixture conveying belt to be screened, and the large-particle plastic and the small-particle plastic are obtained through screening;
step three: conveying the small-particle plastics obtained in the second step into a cleaning water tank through a small-particle conveying belt;
step four: conveying the large-particle plastics obtained in the second step through a large-particle conveying belt, adsorbing magnetic metals mixed in the large-particle plastics onto the magnetic separation mechanism under the magnetic separation mechanism in the conveying process, then manually sorting to remove non-magnetic impurities in the large-particle plastics through a manual sorting station, and conveying the non-magnetic impurities into a cleaning water tank through the large-particle conveying belt;
step five: transferring the solid-liquid mixture in the cleaning water tank into a friction machine for friction and solid-liquid separation;
step six: after separation, transferring the solid substances into a plastic product storage tank for standby through a solid discharge port, and transferring the liquid substances into a paper pulp product storage tank for standby after passing through a liquid discharge port and concentrating through a concentrating assembly;
step seven: the plastic product is made from solid matter in the plastic product storage tank, and the paper product is made from liquid matter in the paper pulp product storage tank.
Compared with the prior art, the invention has the advantages that:
1. according to the invention, the substances separated by the separation system are conveyed into the cleaning water tank to obtain the solid-liquid mixture, the solid-liquid mixture is divided into solid substances and liquid substances by the friction machine, the plastic product storage tank, the concentration assembly and the paper pulp product storage tank which are sequentially arranged and respectively stored for standby, at the moment, the solid substances are plastic particles, the liquid substances are paper pulp rich in paper fibers, the solid substances are utilized to manufacture plastic products, and the liquid substances are utilized to manufacture paper products, so that the quality and the recovery rate of the paper products are ensured, the recycling of the plastic particles can be realized, and the resource utilization rate is improved.
2. According to the invention, the scattering mechanism, the rotary drum screen, the magnetic separation mechanism and the manual separation station are sequentially arranged, after the papermaking waste plastics are scattered, the impurities with different particle sizes are separated, and the impurities are respectively treated and then enter the cleaning water tank for cleaning, so that the aim of reducing the load of cleaning equipment is fulfilled, meanwhile, the separated plastic particles can be recycled, and the resource utilization rate is improved.
3. The magnetic separation mechanism comprises the rotatable magnetic part, so that the magnetic metal in the large-particle plastic can be better attracted and removed, and the problems that the attraction capacity is reduced, the transportation of the large-particle conveyer belt is influenced after the large-particle conveyer belt is expanded due to the fact that more magnetic metal is accumulated on the surface after the large-particle plastic is used for a long time are prevented.
Drawings
FIG. 1 is a schematic view of a part of the structure of the present invention;
FIG. 2 is a schematic diagram of the structure of a sorting system;
FIG. 3 is a top view of the sorting system;
FIG. 4 is a schematic view of the structure of a rotary drum screen;
FIG. 5 is a schematic structural view of a magnetic separation mechanism;
in the figure: conveyor system 1, rotary drum screen 2, break-up mechanism 3, magnetic separation mechanism 4, manual sorting station 5, wash basin 6, friction machine 7, plastic product reservoir 8, thickening assembly 9, pulp product reservoir 10, mix conveyor 11, large particle conveyor 12, small particle conveyor 13, screening housing 21, rotary screening mechanism 22, first drive motor 23, first discharge port 24, second discharge port 25, outer housing 31, break-up cavity 32, break-up rack 33, blade 34, mounting bracket 41, magnetic piece 42, second drive motor 43, operating platform 51, solid discharge port 71, liquid discharge port 72, friction machine outer housing 73, spindle 74, cutterhead 75, sieve plate 76, friction cavity 77, gap 78, filter layer 91, water collection tank 92, sorting system 100, sieve mesh 221, sieve mesh 222, drive transmission mechanism 223, auger 224, annular rack 225, drive gear 226.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description.
Example 1
The embodiment provides a paper waste plastic cleaning and desizing device, which is combined with the figures 1-3 and comprises a cleaning water tank 6, wherein one end of the cleaning water tank 6 is communicated with a sorting system 100, the other end of the cleaning water tank is communicated with a friction machine 7, a solid discharge port 71 for discharging solid products and a liquid discharge port 72 for discharging liquid products are arranged on the friction machine 7, the solid discharge port 71 is communicated with a plastic product storage tank 8, the liquid discharge port 72 is communicated with a pulp product storage tank 10 through a concentration component 9, the main components of the pulp product storage tank are plastic particles and paper fibers which are conveyed into a cleaning water tank 6 after being separated by a separation system 100, specifically, the separation system 100 comprises a conveying system 1 communicated with the cleaning water tank 6 for cleaning waste plastics, the conveying system 1 comprises a mixture conveying belt 11, a large-particle conveying belt 12 and a small-particle conveying belt 13 which are mutually communicated, wherein a scattering mechanism 3 for scattering waste and a rotary drum sieve 2 for sieving the scattered waste according to the particle size are sequentially arranged on the mixture conveying belt 11 along the conveying direction, the rotary drum sieve 2 is communicated with the large-particle conveying belt 12 and the small-particle conveying belt 13, a magnetic separation mechanism 4 for removing magnetic metals in large-particle plastics and a manual separation station 5 for removing non-magnetic impurities in the large-particle plastics are sequentially arranged on the large-particle conveying belt 12 along the conveying direction, and the magnetic separation mechanism 4 is located above the large-particle conveying belt 12, wherein the mixture conveying belt 11, the large-particle conveying belt 12 and the small-particle conveying belt 13 can all adopt a sectional structure.
When the paper pulp washing machine is used, waste to be treated is placed on a mixture conveying belt 11, the mixture conveying belt 11 is utilized to convey the waste to a scattering mechanism 3 for scattering, the scattered waste is conveyed to a rotary drum sieve 2 through the mixture conveying belt 11 for sieving, large-particle plastics and small-particle plastics are obtained through sieving, the obtained small-particle plastics are conveyed to a washing water tank 6 through a small-particle conveying belt 13, the obtained large-particle plastics are conveyed through a large-particle conveying belt 12, magnetic metals mixed in the large-particle plastics are adsorbed to the magnetic separating mechanism 4 in the conveying process, then the magnetic separating mechanism 5 is utilized to manually separate and remove nonmagnetic impurities in the large-particle plastics, the large-particle conveying belt 12 is utilized to convey the waste to the washing water tank 6, then the solid-liquid mixture in the washing water tank 6 is conveyed to a friction machine for solid-liquid separation, after the separation is completed, the solid pulp is conveyed to a plastic product 8 through a solid discharge port 71 for standby, the liquid material is conveyed to a liquid product storage tank 10 through a liquid discharge port 72 and is concentrated through a concentrating assembly 9, the liquid material is conveyed to the paper pulp product 10 for standby storage tank 10, and the liquid product is taken as a solid material in the plastic product storage tank 10 for manufacturing the paper pulp product. The invention conveys the substances separated by the separation system 100 into the cleaning water tank 6 to obtain a solid-liquid mixture, and then the solid-liquid mixture is divided into solid substances and liquid substances which are respectively stored for standby by the friction machine 7, the plastic product storage tank 8, the concentration assembly 9 and the paper pulp product storage tank 10 which are sequentially arranged, at the moment, the main components of the solid substances are plastic particles, the liquid substances are paper pulp rich in paper fibers, the solid substances are used for manufacturing plastic products, and the liquid substances are used for manufacturing paper products, so that the quality and the recovery rate of the manufactured paper products are ensured, the recycling of the plastic particles can be realized, and the resource utilization rate is improved.
As shown in fig. 1, the friction machine 7 includes a friction machine outer shell 73 with a friction cavity 77 inside, a rotating shaft 74 with a cutter head 75 sleeved on the surface is rotatably connected to the friction machine outer shell 73, one end of the rotating shaft 74 extends into the friction cavity 77, the cutter head 75 is fixedly connected with the rotating shaft 74, when in use, the cutter head 75 is driven to rotate by driving the rotating shaft 74, the cutter head 75 rotates to rub an entering solid-liquid mixture, paper fibers attached to the surface of a solid substance can enter liquid more, a sieve plate 76 with sieving holes on the surface is further arranged in the friction cavity 77, the sieve plate 76 plays a role of sieving and solid-liquid separation, the liquid discharge port 72 is communicated with the friction cavity 77 through the sieve plate 76, and the solid discharge port 71 is communicated with one end of the friction cavity 77.
Preferably, the sieve plate 76 is cylindrical and is fixedly connected with the rotating shaft 74, a gap 78 is formed between the outer surface of the sieve plate 76 and the inner surface of the outer shell 73 of the friction machine, and the gap 78 is communicated with the liquid discharge port 72, so that the sieve plate 76 can be driven to rotate when the rotating shaft 74 rotates, and the solid-liquid mixture inside is driven to rotate, and the sieving rate can be effectively improved under the action of centrifugal force.
As shown in fig. 1, the concentrating assembly 9 includes a filter layer 91 disposed below the liquid discharge port 72 and inclined, the filter layer 91 may be filter paper, filter cloth or a filter screen, a water collecting tank 92 is disposed right below the filter layer 91, the pulp product storage tank 10 is communicated with one end of the filter layer 91, the height of one end of the filter layer 91, which is close to the pulp product storage tank 10, in the vertical direction is lower than the height of one end, which is far away from the pulp product storage tank 10, of the filter layer 91, in the vertical direction, when in use, liquid substances discharged from the liquid discharge port 72 are filtered by the filter layer 91, so that viscous pulp flows into the pulp product storage tank 10 along the surface of the filter layer 91, and water is collected into the water collecting tank 92 through the filter layer 91 for recycling, thereby saving water resources.
As shown in fig. 2 and fig. 3, the scattering mechanism 3 includes an outer shell 31 having a scattering cavity 32 therein, the scattering cavity 32 is communicated with the mixture conveying belt 11, a scattering frame 33 rotationally connected with the outer shell 31 is further disposed in the scattering cavity 32, a blade 34 is fixedly connected to the scattering frame 33, one end of the blade 34, far away from the scattering frame 33, extends along the radial direction of the scattering frame 33, and waste materials, such as high-strength waste, are in a compact structure, and after entering the scattering cavity 32, the scattering frame 33 is driven to rotate, so that the blade 34 is driven to scatter the waste materials, so that the waste materials become fluffy, and different components in the waste materials are separated in a subsequent operation.
Referring to fig. 2 and fig. 4, the rotary drum screen 2 includes a screen housing 21 and a rotary screening mechanism 22 located in the screen housing 21, the rotary screening mechanism 22 is in driving connection with a first driving motor 23 fixedly connected to the screen housing 21, the screen housing 21 is provided with a first discharge port 24 communicated with the large particle conveyor 12 and a second discharge port 25 communicated with the small particle conveyor 13, the first discharge port 24 is communicated with an end of the rotary screening mechanism 22, the second discharge port 25 is communicated with a side surface of the rotary screening mechanism 22, the rotary screening mechanism 22 includes a screen 222 with a screen mesh 221, the screen mesh 221 is communicated with the first discharge port 24, the screen 222 is in a cylinder shape, the screen 222 is in driving connection with the first driving motor 23 through a driving transmission mechanism 223 sleeved on an outer surface of the screen 222, two rotating rolls are symmetrically arranged at two sides below the screen mesh 222 to suspend the screen mesh part, the rotating rolls are in rotation connection with the screen mesh housing 21, and the other end of the screen mesh is communicated with the second screen mesh 25.
When the novel waste material sieving machine is used, the scattered waste material is conveyed into the sieve 222 through the auger 224, the first driving motor 23 is started to drive the sieve 222 to rotate through the driving transmission mechanism 223 so as to sieve, most of small-particle materials in the waste material used in paper mills only have small-particle plastics, so that the small-particle plastics falling onto the small-particle conveying belt 13 through the second discharging hole 25 can be ensured by selecting the aperture of the proper sieve hole 221, in the novel waste material sieving machine, the aperture of the sieve hole 221 is less than 8mm, the residual materials are discharged onto the first discharging hole 24 through the end part of the sieve 222 and fall onto the large-particle conveying belt 12 for subsequent procedures, and the sieve 222 can be obliquely arranged for facilitating discharging.
Preferably, the first outlet 24 is located directly above the large particle conveyor belt 12, and the second outlet 25 is located directly above the small particle conveyor belt 13, so that leakage out of the large particle conveyor belt 12 or the small particle conveyor belt 13 can be prevented.
As shown in fig. 4, the driving transmission mechanism 223 includes an annular rack 225 fixedly connected to the outer surface of the screen 222 and a driving gear 226 connected to the first driving motor 23, where the annular rack 225 is meshed with the driving gear 226, that is, the annular rack 225 is meshed with the driving gear 226 to implement transmission, so as to ensure stability of transmission.
Referring to fig. 2 and 5, the magnetic separation mechanism 4 includes a mounting frame 41 and a magnetic member 42 connected to the mounting frame 41, the magnetic member 42 is located above the mixture conveyer belt 11, the magnetic separation mechanism 4 further includes a second driving motor 43 fixedly connected to the mounting frame 41, the second driving motor 43 is in driving connection with the magnetic member 42, and the magnetic member 42 is rotatably connected to the mounting frame 41, where the magnetic separation mechanism 4 includes a rotatable magnetic member 424, so that magnetic metal in the scattered waste raw material can be better attracted and removed, and problems that after long-term use, the attraction capability is reduced due to accumulation of more magnetic metal on the surface, and transportation of the large-particle conveyer belt 12 is affected after volume expansion are prevented.
As shown in fig. 2, the manual sorting station 5 includes an operation platform 51, the operation platform 51 is located at two sides of the large-particle conveyer belt 12, the operation platform 51 extends along the conveying direction of the large-particle conveyer belt 12, an operator who performs sorting stands on the operation platform 51 to remove the large-particle plastics which are conveyed on the large-particle conveyer belt 12 and separated by the magnetic separation mechanism 4, so as to remove sundries such as wood blocks and cloth strips therein, and then perform manual sorting after scattering, screening and magnetic separation, thereby greatly reducing the working strength of the operator who performs manual sorting, and improving the working efficiency.
Example 2
The embodiment provides a papermaking waste plastic cleaning and desizing process, which comprises the following steps:
step one: placing the waste to be treated on a mixture conveying belt 11, and conveying the waste to be treated into a scattering mechanism 3 by using the mixture conveying belt 11 for scattering;
step two: the scattered waste in the first step is conveyed into a rotary drum screen 2 through a mixture conveying belt 11 to be screened, and the waste is screened into large-particle plastics and small-particle plastics;
step three: the small-particle plastics obtained in the second step are conveyed into a cleaning water tank 6 through a small-particle conveying belt 13;
step four: the large-particle plastics obtained in the second step are conveyed by a large-particle conveying belt 12, the magnetic metals mixed in the large-particle plastics are adsorbed on the magnetic separating mechanism 4 under the magnetic separating mechanism 4 in the conveying process, then the large-particle plastics are manually separated by a manual separation station 5 to remove non-magnetic impurities in the large-particle plastics, and then the large-particle plastics are conveyed into a cleaning water tank 6 by the large-particle conveying belt 12;
step five: transferring the solid-liquid mixture in the cleaning water tank 6 into a friction machine for friction and solid-liquid separation;
step six: after separation, the solid substances are transferred into a plastic product storage tank 8 for standby through a solid discharge port 71, and the liquid substances are transferred into a paper pulp product storage tank 10 for standby after being concentrated through a liquid discharge port 72 and a concentration assembly 9;
step seven: the plastic product is manufactured from the solid material in the plastic product tank 8 and the paper product is manufactured from the liquid material in the pulp product tank 10.
Comparative example 1
The embodiment provides a waste material recovery papermaking process, comprising the following steps:
step A: taking waste raw materials, adding the waste raw materials into a cleaning water tank, scattering the waste raw materials by using a stirring plate, and rinsing;
and (B) step (B): standing for a period of time, removing upper layer floating matters and bottom slag of the bottom, and filtering the middle layer to obtain mother liquor containing paper fibers;
step C: and B, concentrating the mother liquor obtained in the step B to obtain pulp stock solution, and manufacturing paper products by taking the pulp stock solution as a raw material.
Application example 1
10kg of waste raw material is taken and divided into two parts with equal mass at random, and the two parts are numbered as a group A and a group B, wherein the group A is processed by a recycling papermaking process in the prior art, namely, paper product 1 is prepared by the method described in comparative example 1, the group B is prepared by the method described in example 2, and the smoothness of the paper product 1 and the paper product 2 is respectively measured by the method described in GB/T456-2002 paper and paper board smoothness measuring method, and the results are shown in the following table:
analysis of results: from the above data, it can be seen that the paper product 2 has better smoothness than the paper product 1, and thus achieves the intended purpose of the present invention.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms of conveyor system 1, rotary drum screen 2, breaker mechanism 3, magnetic separation mechanism 4, manual sorting station 5, wash basin 6, friction machine 7, plastic product tank 8, thickening assembly 9, pulp product tank 10, mix conveyor 11, large particle conveyor 12, small particle conveyor 13, screening housing 21, rotary screen mechanism 22, first drive motor 23, first discharge port 24, second discharge port 25, outer housing 31, breaker cavity 32, breaker frame 33, blade 34, mounting bracket 41, magnetic member 42, second drive motor 43, operating platform 51, solid discharge port 71, liquid discharge port 72, friction machine outer housing 73, spindle 74, cutterhead 75, sieve plate 76, friction cavity 77, gap 78, filter layer 91, water collection tank 92, sorting system 100, sieve mesh 221, sieve 222, drive transmission mechanism 223, auger 224, annular rack 225, drive gear 226, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
Claims (9)
1. The utility model provides a paper grade (stock) waste plastic washs desizing equipment, includes washs basin (6), its characterized in that: one end of the cleaning water tank (6) is communicated with a sorting system (100), the other end of the cleaning water tank is communicated with a friction machine (7), a solid discharge port (71) for discharging solid products and a liquid discharge port (72) for discharging liquid products are arranged on the friction machine (7), the solid discharge port (71) is communicated with a plastic product storage tank (8), and the liquid discharge port (72) is communicated with a pulp product storage tank (10) through a concentration assembly (9);
the sorting system (100) comprises a conveying system (1) which is communicated with a cleaning water tank (6) for cleaning waste plastics, the conveying system (1) comprises a mixture conveying belt (11), a large-particle conveying belt (12) and a small-particle conveying belt (13) which are communicated with each other, a scattering mechanism (3) for scattering waste and a rotary drum sieve (2) for sieving scattered waste according to the size of the particle size are sequentially arranged on the mixture conveying belt (11) along the conveying direction, the rotary drum sieve (2) is communicated with the large-particle conveying belt (12) and the small-particle conveying belt (13), a magnetic separation mechanism (4) for removing magnetic metals in the large-particle plastics and a manual sorting station (5) for removing nonmagnetic impurities in the large-particle plastics are sequentially arranged on the large-particle conveying belt (12) along the conveying direction, and the magnetic separation mechanism (4) is located above the large-particle conveying belt (12).
2. The cleaning and desizing apparatus of waste plastic from paper manufacture as claimed in claim 1, wherein: the friction machine (7) comprises a friction machine outer shell (73) with a friction cavity (77) inside, a rotating shaft (74) with a cutter disc (75) sleeved on the surface is rotationally connected to the friction machine outer shell (73), one end of the rotating shaft (74) extends into the friction cavity (77), the cutter disc (75) is fixedly connected with the rotating shaft (74), a sieve plate (76) with sieving holes on the surface is further arranged in the friction cavity (77), a liquid discharge port (72) is communicated with the friction cavity (77) through the sieve plate (76), and the solid discharge port (71) is communicated with one end of the friction cavity (77).
3. The cleaning and desizing apparatus of waste plastic from paper manufacture as claimed in claim 2, wherein: the sieve plate (76) is cylindrical and fixedly connected with the rotating shaft (74), a gap (78) is formed between the outer surface of the sieve plate (76) and the inner surface of the outer shell (73) of the friction machine, and the gap (78) is communicated with the liquid discharge port (72).
4. The cleaning and desizing apparatus of waste plastic from paper manufacture as claimed in claim 1, wherein: the concentrating assembly (9) comprises a filter layer (91) which is arranged below the liquid discharge hole (72) and is obliquely arranged, a water collecting tank (92) is arranged right below the filter layer (91), the pulp product storage tank (10) is communicated with one end of the filter layer (91), and the height of one end, close to the pulp product storage tank (10), of the filter layer (91) in the vertical direction is lower than that of one end, away from the pulp product storage tank (10), of the filter layer (91) in the vertical direction.
5. The cleaning and desizing apparatus of waste plastic from paper manufacture as claimed in claim 1, wherein: the breaking mechanism (3) comprises an outer shell (31) with a breaking cavity (32) inside, the breaking cavity (32) is communicated with the mixture conveying belt (11), a breaking frame (33) rotationally connected with the outer shell (31) is further arranged in the breaking cavity (32), a blade (34) is fixedly connected to the breaking frame (33), and one end of the blade (34) away from the breaking frame (33) extends along the radial direction of the breaking frame (33).
6. The cleaning and desizing apparatus of waste plastic from paper manufacture as claimed in claim 1, wherein: the rotary drum screen (2) comprises a screening shell (21) and a rotary screening mechanism (22) positioned in the screening shell (21), the rotary screening mechanism (22) is in driving connection with a first driving motor (23) fixedly connected to the screening shell (21), the screening shell (21) is provided with a first discharging hole (24) communicated with a large-particle conveying belt (12) and a second discharging hole (25) communicated with a small-particle conveying belt (13), the first discharging hole (24) is communicated with the end part of the rotary screening mechanism (22), the second discharging hole (25) is communicated with the side surface of the rotary screening mechanism (22), the rotary screening mechanism (22) comprises a screen (222) with a screen mesh (221), the screen mesh (221) is communicated with the first discharging hole (24), the screen mesh (222) is in a cylinder shape, the screen mesh (222) is in driving connection with the first driving motor (23) through a driving transmission mechanism (223) sleeved on the outer surface of the screen mesh (222), the first discharging hole (222) is communicated with a driving mechanism (226) which is fixedly connected with the outer surface of the screen mesh (23), the second driving mechanism (226) is communicated with the outer surface (224) through a driving mechanism (226), the annular rack (225) is meshed with a drive gear (226).
7. The cleaning and desizing apparatus of waste plastic from paper manufacture as claimed in claim 1, wherein: the magnetic separation mechanism (4) comprises a mounting frame (41) and a magnetic part (42) connected to the mounting frame (41), the magnetic part (42) is located above the mixture conveying belt (11), the magnetic separation mechanism (4) further comprises a second driving motor (43) fixedly connected with the mounting frame (41), the second driving motor (43) is in driving connection with the magnetic part (42), and the magnetic part (42) is in rotating connection with the mounting frame (41).
8. The cleaning and desizing apparatus of waste plastic from paper manufacture as claimed in claim 1, wherein: the manual sorting station (5) comprises an operation platform (51), wherein the operation platform (51) is positioned on two sides of the large-particle conveying belt (12) and extends along the conveying direction of the large-particle conveying belt (12).
9. A process for cleaning and desizing waste paper plastics by using the cleaning and desizing equipment for waste paper plastics according to any one of claims 5 to 8, which comprises the following steps:
step one: placing the waste to be treated on a mixture conveying belt (11), and conveying the waste to be treated into a scattering mechanism (3) by using the mixture conveying belt (11) for scattering;
step two: the scattered waste in the first step is conveyed into a rotary drum screen (2) through a mixture conveying belt (11) to be screened, and the waste is screened into large-particle plastics and small-particle plastics;
step three: the small-particle plastics obtained in the second step are conveyed into a cleaning water tank (6) through a small-particle conveying belt (13);
step four: conveying the large-particle plastics obtained in the second step through a large-particle conveying belt (12), adsorbing magnetic metals mixed in the large-particle plastics onto the magnetic separation mechanism (4) under the magnetic separation mechanism (4) in the conveying process, manually sorting to remove non-magnetic impurities in the large-particle plastics through a manual sorting station (5), and conveying the non-magnetic impurities into a cleaning water tank (6) through the large-particle conveying belt (12);
step five: transferring the solid-liquid mixture in the cleaning water tank (6) into a friction machine for friction and solid-liquid separation;
step six: after separation, transferring the solid substances into a plastic product storage tank (8) for standby through a solid discharge port (71), and transferring the liquid substances into a paper pulp product storage tank (10) for standby after the liquid substances pass through a liquid discharge port (72) and are concentrated through a concentration component (9);
step seven: the plastic product is manufactured by taking the solid matters in the plastic product storage tank (8) as raw materials, and the paper product is manufactured by taking the liquid matters in the paper pulp product storage tank (10) as raw materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010289649.5A CN111304945B (en) | 2020-04-14 | 2020-04-14 | Paper-making waste plastic cleaning and desizing process and equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010289649.5A CN111304945B (en) | 2020-04-14 | 2020-04-14 | Paper-making waste plastic cleaning and desizing process and equipment thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111304945A CN111304945A (en) | 2020-06-19 |
| CN111304945B true CN111304945B (en) | 2024-02-13 |
Family
ID=71146322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010289649.5A Active CN111304945B (en) | 2020-04-14 | 2020-04-14 | Paper-making waste plastic cleaning and desizing process and equipment thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111304945B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003127141A (en) * | 2001-10-29 | 2003-05-08 | Komatsu Ltd | Sorting treatment apparatus for waste plastics and sorting treatment method using the same |
| CN1834340A (en) * | 2005-03-18 | 2006-09-20 | 曾碚凯 | Separating method and system for waste paper and waste plastic mixture |
| TW200639291A (en) * | 2005-05-04 | 2006-11-16 | Tzu-Hung Fu | A separation method and system of mixtures of waste papers and waste materials |
| CN203559300U (en) * | 2013-11-20 | 2014-04-23 | 周玉平 | High-speed friction washing, paper-plastic separating and recycled paper pulp quenching device |
| CN208527673U (en) * | 2018-06-12 | 2019-02-22 | 浙江荣晟环保纸业股份有限公司 | A kind of papermaking waste material recovery and processing system |
| CN212052089U (en) * | 2020-04-14 | 2020-12-01 | 浙江山鹰纸业有限公司 | Paper-making waste plastic cleaning and desizing equipment |
-
2020
- 2020-04-14 CN CN202010289649.5A patent/CN111304945B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003127141A (en) * | 2001-10-29 | 2003-05-08 | Komatsu Ltd | Sorting treatment apparatus for waste plastics and sorting treatment method using the same |
| CN1834340A (en) * | 2005-03-18 | 2006-09-20 | 曾碚凯 | Separating method and system for waste paper and waste plastic mixture |
| TW200639291A (en) * | 2005-05-04 | 2006-11-16 | Tzu-Hung Fu | A separation method and system of mixtures of waste papers and waste materials |
| CN203559300U (en) * | 2013-11-20 | 2014-04-23 | 周玉平 | High-speed friction washing, paper-plastic separating and recycled paper pulp quenching device |
| CN208527673U (en) * | 2018-06-12 | 2019-02-22 | 浙江荣晟环保纸业股份有限公司 | A kind of papermaking waste material recovery and processing system |
| CN212052089U (en) * | 2020-04-14 | 2020-12-01 | 浙江山鹰纸业有限公司 | Paper-making waste plastic cleaning and desizing equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111304945A (en) | 2020-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105887537B (en) | Purification of waste paper method and system | |
| JP5872885B2 (en) | Pulp recovery equipment | |
| CN212052089U (en) | Paper-making waste plastic cleaning and desizing equipment | |
| CN109676714A (en) | A method of bamboo extractive and bamboo pulp are prepared with bamboo | |
| CN109368665B (en) | Method and system for recycling and treating direct flotation tail salt | |
| CN111304945B (en) | Paper-making waste plastic cleaning and desizing process and equipment thereof | |
| IE914556A1 (en) | Method for processing waste paper | |
| CN111391180A (en) | Paper-making waste plastic sorting process and equipment thereof | |
| JP2603278B2 (en) | Potato fiber and method for producing the same | |
| US4420117A (en) | Waste paper disintegrating, sorting and fiber recovery apparatus | |
| CN213321144U (en) | Solid waste washing system for papermaking | |
| CN113815151B (en) | Method for recovering discarded filter rods of cigarettes | |
| CN209922916U (en) | Concentrated dehalogenation system of smart potassium ground paste | |
| RU101942U1 (en) | CENTRIFUGAL PROCESSING AND CLASSIFICATING APPARATUS | |
| CN214437645U (en) | Papermaking raw materials is dust collector for breakage | |
| CN108824048A (en) | A kind of method and device therefor of fresh hollow palm fruit string slurrying stock | |
| EP2274471B1 (en) | A method for pulping waste paper | |
| CN211993730U (en) | Paper-making waste plastic sorting equipment | |
| CN106283785A (en) | Rotary drum pulping machine | |
| CN215586795U (en) | Coal slime classification dewatering device | |
| CN105665108A (en) | Efficient pulping device | |
| CN101387086A (en) | Non-pollution pulping technique by chemical-mechanical method | |
| CN110295507A (en) | Stalk extracts fibre technology | |
| CN218436369U (en) | Pulper for processing decorative base paper | |
| US1688904A (en) | Process fob |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |