Classifications

• • C—CHEMISTRY; METALLURGY
  • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
  • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
  • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
  • C04B26/006—Waste materials as binder
• • C—CHEMISTRY; METALLURGY
  • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
  • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
  • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
  • C04B26/02—Macromolecular compounds
  • C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • C04B26/045—Polyalkenes
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
  • B29B13/00—Conditioning or physical treatment of the material to be shaped
  • B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
  • B29B13/00—Conditioning or physical treatment of the material to be shaped
  • B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
  • B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
  • B29C67/242—Moulding mineral aggregates bonded with resin, e.g. resin concrete
• • C—CHEMISTRY; METALLURGY
  • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
  • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
  • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
  • C04B14/02—Granular materials, e.g. microballoons
  • C04B14/04—Silica-rich materials; Silicates
  • C04B14/06—Quartz; Sand
• • C—CHEMISTRY; METALLURGY
  • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
  • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
  • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
  • C04B18/04—Waste materials; Refuse
  • C04B18/18—Waste materials; Refuse organic
  • C04B18/20—Waste materials; Refuse organic from macromolecular compounds
• • C—CHEMISTRY; METALLURGY
  • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
  • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
  • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
  • C04B2111/00034—Physico-chemical characteristics of the mixtures
  • C04B2111/00129—Extrudable mixtures
• • 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

Definitions

• the present invention relates to an apparatus and a method for recycling and using disused polyethylene and more particularly, to an apparatus and a method for manufacturing a polymer concrete product by using disused polyethylene in which the collected disused polyethylene film is melted so that the binder material with high compression intensity and the excellent chemical resistance is produced and then a base body for machine, film for agricultural water and construction materials and the like are manufactured, thereby the disused resource is recycled and it is helpful to preserve the environment.
• vinyl as the synthetic resin product is the necessity in one's daily life and has many advantages.
• poisonous materials is generated and because the vinyl has the indegradable property in the natural state, the treatment of disused material was on the rise as a large social problem.
• polyethylene of vinyl has the excellent water resistance, chemical resistance, electric insulating property and the nontoxic property and accordingly is used at many fields.
• the polyethylene film is widely used for the agriculture field. Recently, there are many difficulties to disuse the film after using.
• the recycling use technique of the disused vinyl is divided into a melting recycling manner and a dissolving recycling manner.
• the melting recycling manner is a manner that the disused vinyl is heated and melted and inserted into a mold and then cooled as a constant shape.
• the dissolving recycling manner is a manner that dissolves the disused vinyl by means of solvent.
• polyethylene about 15% is dissolved in the paraffin group hydrocarbon as a solvent or polyethylene about 3.5% is dissolved at mineral oil as a solvent at 80- 100 0 C.
• the Korean patent application No. 10-1996-74747 has been filed by an applicant of the present invention and registered.
• the present invention considers the above conventional problems and improves a polymer concrete product manufacturing apparatus and a method thereof by using the conventional disused polyethylene.
• An object of the invention is to provide a method for manufacturing a polymer concrete product by using disused polyethylene in which the disused polyethylene film as the thermoplastic resin is compressed and completely melted through a three-stage twin extruder, also mixed with aggregate such as sand and the like by means of a binder, compressed as a predetermined shape so that the polymer concrete product with the excellent compression intensity is manufactured in cheap.
• Another object of the present invention is to provide an apparatus for manufacturing a polymer concrete product by using disused polyethylene in which the disused polyethylene film as the thermoplastic resin is compressed and completely melted through a three-stage twin extruder, also mixed with aggregate such as sand and the like by means of a binder, compressed as a predetermined shape so that the polymer concrete product with the excellent compression intensity is manufactured in cheap.
• Another object of the present invention is to provide a material such as a base body of a machine and a corner block and the like with the excellent compression intensity, fire resisting property by using the disused polyethylene film.
• Another object of the present invention is to recycle the disused polyethylene film, thereby protecting the natural environment and preventing the contamination.
• Another object of the present invention is to reuse not only a low density polyethylene film which is able to recycle but also a high density polyethylene film which is difficult to recycle and inevitable to disuse.
• a method for manufacturing a polymer concrete product by using disused polyethylene comprising the steps of: a raw material preparing process in which disused polyethylene is collected and sand is prepared; a raw material cutting process in which the collected disused polyethylene film is cut by a general cutter; a melting compression process in which the cut disused polyethylene is melted and compressed firstly, secondly and thirdly; a mixing process in which the melted and compressed liquid disused polyethylene and sand are mixed uniformly; a press molding process in which the mixture produced at the mixing process is compressed by using a press molding device, molded with a predetermined shape so that a product is manufactured; a cooling and lading process in which the molded product is cooled by a cooler and loaded into a loading site by a roll conveyor.
• an apparatus for manufacturing a polymer concrete product by using disused polyethylene comprising: a general cutter for cutting disused polyethylene film with a predetermined distance; a melting compressor(twin extruder) for melting and compressing the disused polyethylene film cut by the cutter; a sand work supplier including a sand storing hopper for storing sand, a conveyor for carrying sand, a dryer, a cooler and a screen; a compressing mixer connected to the discharge stages of the melting compressor and the sand work supplier and for receiving the melt-compressed liquid disused polyethylene and sand and for making the uniform mixture; a transfer conveyor for transferring the mixture produced at the compressing mixer into a press molding device; the press molding device for molding the transferred mixture into a predetermined shape; a mesh conveyor for moving the molded product into a cooler; the cooler for cooling the molded product.
• the disused polyethylene film as the thermoplastic resin is compressed and completely melted through a three-stage twin extruder, also mixed with aggregate such as sand and the like by means of a binder, compressed as a predetermined shape so that the polymer concrete product with the excellent compression intensity is manufactured in cheap.
• the disused polyethylene film can be recycled, thereby protecting the natural environment and preventing the contamination. Not only a low density polyethylene film which is easy to recycle but also a high density polyethylene film which is difficult to recycle and inevitable to disuse can be reused.
• FIG. 1 is a view schematically illustrating a sand working supplier according to the present invention
• FIG. 2 is a view schematically illustrating a melting compressor (twin extruder), a compression mixer, a press molding device and a cooler according to the present i nvention;
• FIG. 3 is a flow chart realizing a method for manufacturing a polymer concrete product by using disused polyethylene
• FIG. 4 is a cross-sectional view illustrating a state for molding a flume pipe by a press molding device according to the present invention. Best Mode for Carrying Out the Invention
• FIG. 1 is a view schematically illustrating a sand working supplier according to the present invention
• FIG. 2 is a view schematically illustrating a melting compressor (twin extruder), a compression mixer, a press molding device and a cooler according to the present invention
• FIG. 3 is a flow chart realizing a method for manufacturing a polymer concrete product by using disused polyethylene.
• an apparatus for manufacturing a polymer concrete product by using disused polyethylene comprises a general cutter for cutting disused polyethylene film with a predetermined distance; a melting compressor 10 for melting and compressing the disused polyethylene film cut by the cutter; a sand work supplier 20 including a sand storing hopper 21 for storing sand, a conveyor 20' for carrying sand, a dryer 23, a cooler 24 and a screen 28; a compression mixer 30 connected to the discharge stages of the melting compressor 10 and the sand work supplier 20 and for receiving the melt-compressed liquid disused polyethylene and sand and for making the uniform mixture; a transfer conveyor 30' for transferring the mixture produced at the compression mixer 30 into a press molding device; the press molding device 40 for molding the transferred mixture into a predetermined shape; a mesh conveyor 40' for moving the molded product into a cooler; the cooler 41 for cooling the molded product.
• the cutter cuts the disused polyethylene film with about Im by means of a general cutter which is not shown.
• the melting compressor 10 compresses and melts the disused polyethylene film firstly, secondly and thirdly and comprises three twin extruders 11,12 and 13.
• the disused polyethylene film cut by the cutter is carried into the conveyor 10', stored in a first disused polyethylene film storing hopper 11a and applied to the twin extruder 11. Thereafter, the disused polyethylene film firstly compressed and melted by the twin extruder 11 is applied to the twin extruder 12 through a disused polyethylene storing hopper 12a and then secondly melted and compressed. Thereafter, the disused polyethylene film secondly compressed and melted by the twin extruder 12 is applied to the twin extruder 13 through a disused polyethylene storing hopper 13a and then thirdly melted and compressed.
• a compression mixer 30 for mixing the liquid disused polyethylene thirdly melted and compressed at the twin extruder 13 with sand through the sand working supplier 20 is installed at a discharge stage of the twin extruder 13. Sand discharged from the sand working supplier 20 is supplied to the compression mixer 30.
• the sand work supplier 20 comprises a sand storing hopper 21 for storing sand, a transfer conveyor 20' for transferring sand stored in the sand storing hopper 21 into a dryer 23, the dryer 23 for drying sand transferred through the transfer conveyor 20, a cooler 24 for cooling sand dried by the drier 23, a bracket feeder 26 for moving sand cooled through the cooler 24 into a silo 27, a screen 28 for screening sand stored in the silo 27, a bracket feeder 26' for transferring sand screened by the screen 28, a silo 29 for storing sand transferred through the bracket feeder 26'.
• a transfer conveyor 30' is installed at a discharge stage of the compression mixer
• the press molding device 40 is installed at a discharge stage of the transfer conveyor 30'.
• the mesh conveyor 40' is installed at the next stage of the press molding device 40 and transfers the formed product into the cooler 41.
• the cooler 41 is installed at the next stage of the mesh conveyor 40' and cools the formed product.
• FIG. 3 is a flow chart realizing a method for manufacturing a polymer concrete product by using disused polyethylene.
• step Sl Firstly, at a raw material collection preparing process, disused polyethylene film is collected, sand is prepared and stored in a sand storing hopper 21 (step Sl).
• step S2 the collected disused polyethylene film is cut by using a general cutter with length of about Im (step S2), and thereafter, the cut disused polyethylene film is melted and compressed firstly, secondly and thirdly and the prepared sand is worked and treated. That is, a first melting and compression process is performed: a twin extruder 11 melts and compresses the disused polyethylene film by temperature of 230 ⁇ 250°C (step S3). And, at a sand dry process, sand stored in a sand storing hopper 21 is transferred to a dryer 23 through a transfer conveyor 20' and then dried(step S4).
• a twin extruder 12 melts and compresses secondly the disused polyethylene melted and compressed at the first melting and compression process(step S3) by temperature of 225-230 (step S5).
• a sand cooling process is performed: the dried sand is cooled at the cooler 24(step S6).
• a twin extruder 13 melts and compresses thirdly the disused polyethylene melted and compressed at the second melting and compression process(step S5) by temperature of 190-195 (step S7). And, the cooled sand is transferred and stored in a silo 27 through a bracket feeder 26 and thereafter at a sand screening process, the sand is screened by a screen 28(step S8).
• FIG. 4 is a cross-sectional view illustrating a state for molding a flume pipe by a press molding device according to the present invention.
• a reference numeral 50 is a flume pipe
• 51 is an upper molding case
• 52 is a lower molding device.
• the mixture of a plate panel is compressed by a press with about 2,000 ton so that the flume pipe 50 having a shape like this is molded.
• iron bars are inserted into the mixture with a constant distance and treated by a coining process so that the polymer-iron bar concrete molding product may be manufactured.
• the shape of the mixture may be molded differently. Accordingly, a waterway and an agricultural waterway such as a flume, a U-shaped flume, a road gutter, a pipe such as upper and lower water pipes and a wire tube and the like, a trough with a power wire type, a trough with a railroad type, a manhole for discharge, power and communication, a shore protection block for a river and an incline of a road and a block for a roadway and a sidewalk.
• a waterway and an agricultural waterway such as a flume, a U-shaped flume, a road gutter, a pipe such as upper and lower water pipes and a wire tube and the like, a trough with a power wire type, a trough with a railroad type, a manhole for discharge, power and communication, a shore protection block for a river and an incline of a road and a block for a roadway and a sidewalk.
• aggregate mixed with the polyethylene as a binder may be used together with gravel and sand and another additive such as organic pigment or sunscreen may be added and mixed.
• the weight ratio of polyethylene as a binder and aggregate is 20 ⁇ 40%:60 ⁇ 80%, preparably and when sand and gravel are used, the weight ratio of sand and gravel is preparalby 20-80%: 10-60%.

Landscapes

• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Ceramic Engineering (AREA)
• Structural Engineering (AREA)
• Materials Engineering (AREA)
• Organic Chemistry (AREA)
• Mechanical Engineering (AREA)
• Civil Engineering (AREA)
• Environmental & Geological Engineering (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Processing Of Solid Wastes (AREA)
• Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=39140832

Family Applications (1)

Country Status (2)

Cited By (2)

Citations (3)

Family Cites Families (1)

• 2006
  • 2006-11-13 KR KR1020060111852A patent/KR100785047B1/ko not_active IP Right Cessation
• 2007
  • 2007-11-13 WO PCT/KR2007/005695 patent/WO2008060086A1/en active Application Filing

Patent Citations (3)

Also Published As

Similar Documents

Legal Events