CN112025891A - Aldehyde-reducing and VOC-removing method for graphene heating artificial board - Google Patents

Aldehyde-reducing and VOC-removing method for graphene heating artificial board Download PDF

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Publication number
CN112025891A
CN112025891A CN202010890496.XA CN202010890496A CN112025891A CN 112025891 A CN112025891 A CN 112025891A CN 202010890496 A CN202010890496 A CN 202010890496A CN 112025891 A CN112025891 A CN 112025891A
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China
Prior art keywords
artificial board
thickness
grade
temperature
heating
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CN202010890496.XA
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Chinese (zh)
Inventor
张焕兵
叶昌海
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Chengdu Meikang Sanson Wood Industry Co ltd
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Chengdu Meikang Sanson Wood Industry Co ltd
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Priority to CN202010890496.XA priority Critical patent/CN112025891A/en
Publication of CN112025891A publication Critical patent/CN112025891A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B27K5/0085—Thermal treatments, i.e. involving chemical modification of wood at temperatures well over 100°C
    • B27K5/009—Thermal treatments, i.e. involving chemical modification of wood at temperatures well over 100°C using a well-defined temperature schedule
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K1/00—Damping wood
    • B27K1/02—Apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B27K5/001—Heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K2240/00—Purpose of the treatment
    • B27K2240/15—Decontamination of previously treated wood

Abstract

The invention provides a method for reducing aldehyde and removing VOC (volatile organic compounds) of a graphene heating artificial board, which is characterized by comprising the following steps of: (1) conveying the artificial boards into a high-temperature cabin according to different thicknesses for heating treatment; (2) carrying out roller spraying of a nano oxidation purifying agent on the artificial board subjected to the heating treatment in the high-temperature cabin; (3) conveying the artificial board treated by the roller-sprayed nano oxidation purifying agent into a constant-temperature cabin for treatment. The invention can effectively reduce aldehyde and remove VOC for the artificial board in a short time under the condition of lower temperature.

Description

Aldehyde-reducing and VOC-removing method for graphene heating artificial board
Technical Field
The invention relates to the technical field of aldehyde removal, and particularly relates to an aldehyde-reducing and VOC-removing method for a graphene heating artificial board.
Background
Formaldehyde, also known as formil, is colorless and irritant gas, and has strong irritation to human eyes, nose and the like. The artificial board is an artificial board or a mould pressing product which is formed by applying an adhesive and other additives to be glued after being separated into various unit materials by certain mechanical processing by taking wood or other non-wood plants as raw materials; the adhesive generally used in the processing of the existing artificial board is a urea-formaldehyde resin adhesive, harmful substances such as formaldehyde, VOC and the like can be slowly released after the processing, and in order to meet the requirements of environmental protection and health, the formaldehyde and VOC need to be removed in the processing process.
Because the artificial board is processedThe adhesive contains various harmful components such as formaldehyde, VOC, etc. which enter the artificial board during processing and then enter various application places, and the formaldehyde has stimulation effect on skin mucosa, which is more than 0.08 mg/m3The concentration of formaldehyde can cause redness, itching, discomfort or pain in the throat, hoarseness, sneezing, chest distress, asthma, dermatitis, etc., and the formaldehyde is the main cause of many diseases; even if the base material (fiberboard, particle board and plywood) is not added with glue containing various harmful components such as formaldehyde, VOC and the like, the glue containing the formaldehyde is inevitably used when the decorative surface paper is adhered with the base material in the subsequent veneering/veneer processing process, so that furniture and the like made of the veneer emit various harmful components such as the formaldehyde, the VOC and the like; the harmful components cause discomfort such as dizziness, headache, dysphoria and the like to the people and seriously affect the physical health of the people.
In the prior art, high-temperature heating is generally adopted to remove formaldehyde from an artificial board, the method is single, the used temperature is high, the time is long, certain deformation and damage can be caused to the artificial board, the formaldehyde removal efficiency is low, formaldehyde released in the early stage of the artificial board is removed in a centralized and accelerated manner, and the artificial board can continuously release formaldehyde in the later stage of treatment.
Disclosure of Invention
The invention aims to provide a method for reducing aldehyde and removing VOC (volatile organic compounds) of a graphene heating artificial board, which can effectively reduce aldehyde and remove VOC for the artificial board in a short time at a lower temperature.
The embodiment of the invention is realized by the following technical scheme:
an aldehyde-reducing and VOC-removing method for a graphene heating artificial board comprises the following steps:
(1) conveying the artificial boards into a high-temperature cabin according to different thicknesses for heating treatment;
(2) carrying out roller spraying of a nano oxidation purifying agent on the artificial board subjected to the heating treatment in the high-temperature cabin;
(3) conveying the artificial board treated by the roller-sprayed nano oxidation purifying agent into a constant-temperature cabin for treatment.
Further, the temperature in the high-temperature chamber in the step (1) is set to be 115-135 ℃.
Further, in the step (1), heating the E1-grade artificial board with the thickness not greater than 12mm for 85-95 min, heating the E1-grade artificial board with the thickness of 12.1-15 mm for 115-125 min, and heating the E1-grade artificial board with the thickness of 15.1-22 mm for 135-145 min; e2-grade artificial boards with the thickness of not more than 12mm are heated for 85-95 min, E2-grade artificial boards with the thickness of 12.1-15 mm are heated for 115-125 min, and E2-grade artificial boards with the thickness of 15.1-22 mm are heated for 135-145 min.
Further, the humidity in the constant-temperature cabin in the step (3) is set to be 65-75%.
Further, in the step (3), the E1-grade artificial board with the thickness not greater than 12mm is heated at 57-63 ℃ for 85-95 min, the E1-grade artificial board with the thickness of 12.1-15 mm is heated at 67-73 ℃ for 115-125 min, and the E1-grade artificial board with the thickness of 15.1-22 mm is heated at 77-83 ℃ for 115-125 min; e2-grade artificial boards with the thickness of not more than 12mm are heated at 77-83 ℃ for 85-95 min, E2-grade artificial boards with the thickness of 12.1-15 mm are heated at 82-88 ℃ for 115-125 min, and E2-grade artificial boards with the thickness of 15.1-22 mm are heated at 92-98 ℃ for 115-125 min.
Further, high temperature cabin and constant temperature cabin include the cabin body and set up in the feed inlet and the discharge gate of the relative lateral wall of cabin body, the extrusion molding insulating layer is laid to cabin internal face, fire-retardant heat preservation reflecting plate is laid to extrusion molding insulating layer internal surface, polylith graphite alkene electric heat membrane is laid to fire-retardant heat preservation reflecting plate internal surface, graphite alkene electric heat membrane internal surface is laid and is prevented static high temperature non-woven fabrics, cabin body direction of height equidistance interval is equipped with a plurality of hollow stand, hollow stand is used for fixed cabin body wall.
Furthermore, a plurality of aluminum plates are paved on the inner surface of the anti-static high-temperature non-woven fabric; each aluminum plate is fixed on two adjacent hollow upright posts.
Further, the aluminum plate has a honeycomb structure.
Further, a conveying part is arranged in the cabin body, the conveying part comprises a plate placing frame and a support fixed on the bottom wall of the plate placing frame, a sliding groove is formed in the bottom wall of the support, and a sliding rail matched with the sliding groove is arranged on the bottom wall of the cabin body; the slide rails are distributed along the direction from the feed inlet to the discharge outlet.
Further, the frame of the cabin body is of a steel welding structure; the wall surface of the cabin body is made of heat-insulating asbestos artificial boards.
Further, be provided with temperature control mechanism in the cabin body, temperature control mechanism includes temperature-sensing head and temperature controller, each graphite alkene electric heat membrane series connection electricity connects a switch, every group graphite alkene electric heat membrane parallel connection electricity connects, every group graphite alkene electric heat membrane is connected with temperature-sensing head and temperature controller electricity.
Furthermore, a humidifying mechanism is arranged in the cabin body, the humidifying mechanism comprises a water storage tank and a water pipe which is communicated and connected with the water storage tank, a plurality of evaporation tubes are communicated and arranged on the water pipe, and a heating pipe is arranged on the outer wall of each evaporation tube; the plurality of evaporation tubes are vertically attached to the inner wall of the cabin body; and a plurality of evaporation holes are formed in the wall of each evaporation pipe.
Further, be provided with humidity control mechanism in the cabin body, humidity control mechanism includes humidity detecting head and humidity controller, humidity detecting head, heating pipe and humidity controller electricity are connected.
Further, a circulating air mechanism is arranged outside the cabin body, the circulating air mechanism comprises an air inlet arranged at the bottom of the cabin body and an air outlet arranged at the top of the cabin body, the air inlet and the air outlet are communicated through a ventilation pipe, and a circulating fan is arranged in the ventilation pipe.
Further, a lighting lamp is arranged in the cabin body; and an observation window is arranged on the outer wall of the cabin body.
The technical scheme of the embodiment of the invention at least has the following advantages and beneficial effects:
according to the invention, the artificial board is subjected to high-temperature cabin treatment, then is subjected to roller spraying of the nano oxidation purifying agent, and finally is subjected to constant-temperature cabin treatment, so that formaldehyde and VOC in the artificial board can be fully released and removed, and the artificial board is prevented from continuously releasing formaldehyde to cause injury to users after being treated; the invention has lower use temperature, is not easy to cause deformation and damage of the artificial board and has lower energy consumption.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a cross-sectional view of a high temperature compartment and a thermostatic compartment provided in an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of a temperature control mechanism according to an example of the present invention;
fig. 3 is a schematic circuit diagram of a humidity control mechanism according to an example of the present invention.
Icon: 1-cabin body, 101-observation window, 11-extrusion molding heat insulation layer, 12-flame-retardant heat insulation reflecting plate, 13-graphene electrothermal film, 14-antistatic high-temperature non-woven fabric, 15-hollow upright column, 16-aluminum plate, 2-conveying piece, 201-plate placing frame, 202-bracket, 203-sliding groove, 204-sliding rail, 3-temperature sensing head, 301-temperature controller, 302-switch, 4-humidifying mechanism, 401-water storage tank, 402-water conveying pipe, 403-evaporating pipe, 404-heating pipe, 405-evaporating hole, 5-humidity detecting head, 501-humidity controller, 6-circulating air mechanism, 601-ventilating pipe, 602-circulating fan and 7-illuminating lamp.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
The method for reducing aldehyde and removing VOC of the graphene heating artificial board provided by the embodiment of the invention is specifically described below.
Example 1
The embodiment provides an aldehyde-reducing and VOC-removing method for a graphene heating artificial board, which comprises the following steps:
(1) conveying E1-grade artificial boards into a high-temperature chamber according to different thicknesses, setting the heating temperature in the high-temperature chamber to 125 ℃, heating E1-grade artificial boards with the thickness of not more than 12mm for 85min, heating E1-grade artificial boards with the thickness of 12.1-15 mm for 115min, and heating E1-grade artificial boards with the thickness of 15.1-22 mm for 135 min; conveying E2-grade artificial boards into a high-temperature chamber according to different thicknesses, setting the heating temperature in the high-temperature chamber to be 135 ℃, heating E2-grade artificial boards with the thickness of not more than 12mm for 85min, heating E2-grade artificial boards with the thickness of 12.1-15 mm for 115min, and heating E2-grade artificial boards with the thickness of 15.1-22 mm for 135 min;
(2) after the artificial board is subjected to aldehyde reduction and VOC removal treatment in a high-temperature cabin, conveying the artificial board into equipment for spraying a nano oxidation purifying agent by a roller, and conveying the artificial board into a constant-temperature cabin for physical and chemical property balance treatment after the double surfaces of the artificial board are sprayed with the nano oxidation purifying agent by the roller;
(3) conveying the E1-grade artificial boards subjected to roller spraying of the nano oxidation purifying agent into a constant temperature chamber according to different thicknesses, wherein the humidity in the constant temperature chamber is set to be 65%, the E1-grade artificial boards with the thickness of not more than 12mm are heated at 57 ℃ for 95min, the E1-grade artificial boards with the thickness of 12.1-15 mm are heated at 67 ℃ for 125min, and the E1-grade artificial boards with the thickness of 15.1-22 mm are heated at 77 ℃ for 125 min; conveying the E2-grade artificial boards subjected to roller spraying of the nano oxidation purifying agent into a constant temperature cabin according to different thicknesses, setting the humidity in the constant temperature cabin to be 65%, heating the E2-grade artificial board with the thickness of not more than 12mm at 77 ℃ for 95min, heating the E2-grade artificial board with the thickness of 12.1-15 mm at 82 ℃ for 125min, and heating the E2-grade artificial board with the thickness of 15.1-22 mm at 92 ℃ for 125 min.
In the embodiment, the high-temperature chamber and the constant-temperature chamber comprise a chamber body 1, and a feeding hole and a discharging hole which are arranged on the opposite side walls of the chamber body 1, wherein the feeding hole and the discharging hole are respectively provided with a sealable door body; 1 internal face of the cabin body is laid extrusion molding insulating layer 11, 11 internal surfaces of extrusion molding insulating layer are laid fire-retardant heat preservation reflecting plate 12, polylith graphite alkene electric heat membrane 13 is laid to 12 internal surfaces of fire-retardant heat preservation reflecting plate, 13 internal surfaces of graphite alkene electric heat membrane are laid and are prevented static high temperature non-woven fabrics 14, 1 direction of height equidistance interval in the cabin body is equipped with a plurality of hollow stand 15, hollow stand 15 is used for fixed 1 wall in the cabin body.
The electric energy conversion heat energy heated by the graphene electrothermal film 13 reaches 99.8%, the temperature regulation and control are convenient and quick, and the material is light, environment-friendly and simple to operate; the cabin body 1 which can reach the required temperature and humidity condition is established, and the aldehyde removal and VOC reduction treatment of the artificial board is convenient.
In this embodiment, a plurality of aluminum plates 16 are laid on the inner surface of the anti-static high-temperature non-woven fabric 14; each aluminum plate 16 is fixed on two adjacent hollow columns 15; the aluminum plate 16 has a honeycomb structure; the graphene electrothermal film 13 is convenient to transfer heat and can be protected from being damaged by external force.
In this embodiment, a conveying part 2 is arranged in the cabin body 1, the conveying part 2 includes a rack 201 and a bracket 202 fixed to the bottom wall of the rack 201, the bottom wall of the bracket 202 is provided with a chute 203, and the bottom wall of the cabin body 1 is provided with a slide rail 204 used in cooperation with the chute 203; the slide rails 204 are distributed along the direction from the feeding port to the discharging port; the artificial boards are placed on the board placing frame 201, so that the artificial boards can be conveniently transported to enter and exit the cabin body 1 and placed in the cabin body 1 for treatment.
In this embodiment, the frame of the cabin 1 is a steel welding structure, so as to ensure the stable structure of the cabin 1; the wall surface of the cabin body 1 is made of heat-insulating asbestos artificial boards, and has the functions of heat insulation and heat preservation so as to keep the temperature in the cabin body 1.
In this embodiment, a temperature control mechanism is arranged in the cabin 1, the temperature control mechanism includes a temperature sensing head 3 and a temperature controller 301, each of the graphene electrothermal films 13 is electrically connected in series with a switch 302, each of the graphene electrothermal films 13 is electrically connected in parallel, and each of the graphene electrothermal films 13 is electrically connected with the temperature sensing head 3 and the temperature controller 301; the temperature sensing head 3 senses a temperature signal in the cabin body 1 and transmits the temperature signal to the temperature controller 301, and the temperature controller 301 controls the on/off of each switch 302 so as to keep the preset temperature in the cabin body 1.
In this embodiment, a humidifying mechanism 4 is disposed in the cabin 1, the humidifying mechanism 4 includes a water storage tank 401 and a water pipe 402 connected to the water storage tank 401, the water pipe 402 is provided with a plurality of evaporation tubes 403, and the outer wall of each evaporation tube 403 is provided with a heating pipe 404; a plurality of evaporation tubes 403 are vertically attached to the inner wall of the cabin 1; a plurality of evaporation holes 405 are formed in the wall of each evaporation tube 403; the water in the water storage tank 401 is output into the water delivery pipe 402, the water delivery pipe 402 is heated by the heating pipe 404, so that the water in the water delivery pipe 402 is evaporated and enters the steam pipe, and is evaporated and enters the cabin 1 through the evaporation holes 405, so as to humidify the inside of the cabin 1.
In this embodiment, a humidity control mechanism is arranged in the cabin 1, the humidity control mechanism includes a humidity probe 5 and a humidity controller 501, and the humidity probe 5, the heating pipe 404 and the humidity controller 501 are electrically connected; the humidity detector 5 detects the humidity signal in the cabin 1 and transmits the signal to the humidity controller 501, and the humidity controller 501 controls the switch 302 to heat the pipe 404, so as to maintain the preset humidity in the cabin 1.
In this embodiment, a circulating fan 602 mechanism 6 is arranged outside the cabin 1, the circulating fan 602 mechanism 6 includes an air inlet arranged at the bottom of the cabin 1 and an air outlet arranged at the top of the cabin 1, the air inlet and the air outlet are communicated by arranging a ventilation pipe 601, and a circulating fan 602 is arranged in the ventilation pipe 601; facilitating the circulation ventilation of the cabin 1.
In this embodiment, the cabin 1 is provided with an illuminating lamp 7; an observation window 101 is arranged on the outer wall of the cabin 1; the situation inside the cabin 1 can be conveniently checked.
The grade E1 artificial board treated by the method of the embodiment is named A1, and the grade E2 artificial board is named A2.
Example 2
The embodiment provides an aldehyde-reducing and VOC-removing method for a graphene heating artificial board, which comprises the following steps:
(1) conveying E1-grade artificial boards into a high-temperature chamber according to different thicknesses, setting the heating temperature in the high-temperature chamber to be 115 ℃, heating E1-grade artificial boards with the thickness of not more than 12mm for 95min, heating E1-grade artificial boards with the thickness of 12.1-15 mm for 125min, and heating E1-grade artificial boards with the thickness of 15.1-22 mm for 145 min; conveying E2-grade artificial boards into a high-temperature chamber according to different thicknesses, setting the heating temperature in the high-temperature chamber to 125 ℃, heating E2-grade artificial boards with the thickness of not more than 12mm for 95min, heating E2-grade artificial boards with the thickness of 12.1-15 mm for 125min, and heating E2-grade artificial boards with the thickness of 15.1-22 mm for 145 min;
(2) after the artificial board is subjected to aldehyde reduction and VOC removal treatment in a high-temperature cabin, conveying the artificial board into equipment for spraying a nano oxidation purifying agent by a roller, and conveying the artificial board into a constant-temperature cabin for physical and chemical property balance treatment after the double surfaces of the artificial board are sprayed with the nano oxidation purifying agent by the roller;
(3) conveying the E1-grade artificial board sprayed with the nano oxidation purifying agent by the roller into a constant temperature cabin according to different thicknesses, wherein the humidity in the constant temperature cabin is set to be 75%, the E1-grade artificial board with the thickness not greater than 12mm is heated at 63 ℃ for 85min, the E1-grade artificial board with the thickness of 12.1-15 mm is heated at 73 ℃ for 115min, and the E1-grade artificial board with the thickness of 15.1-22 mm is heated at 83 ℃ for 115 min; conveying the E2-grade artificial boards sprayed with the nano oxidation purifying agent by the rollers into a constant temperature cabin according to different thicknesses, setting the humidity in the constant temperature cabin to be 75%, heating the E2-grade artificial board with the thickness of not more than 12mm at 83 ℃ for 85min, heating the E2-grade artificial board with the thickness of 12.1-15 mm at 88 ℃ for 115min, and heating the E2-grade artificial board with the thickness of 15.1-22 mm at 98 ℃ for 115 min.
The structures of the high-temperature chamber and the thermostatic chamber in this embodiment are the same as those of the high-temperature chamber and the thermostatic chamber in embodiment 1.
The grade E1 artificial board treated by the method of the embodiment is named as B1, and the grade E2 artificial board is named as B2.
Example 3
The embodiment provides an aldehyde-reducing and VOC-removing method for a graphene heating artificial board, which comprises the following steps:
(1) conveying E1-grade artificial boards into a high-temperature chamber according to different thicknesses, setting the heating temperature in the high-temperature chamber to be 120 ℃, heating E1-grade artificial boards with the thickness of not more than 12mm for 90min, heating E1-grade artificial boards with the thickness of 12.1-15 mm for 120min, and heating E1-grade artificial boards with the thickness of 15.1-22 mm for 140 min; conveying E2-grade artificial boards into a high-temperature chamber according to different thicknesses, setting the heating temperature in the high-temperature chamber to 130 ℃, heating E2-grade artificial boards with the thickness of not more than 12mm for 90min, heating E2-grade artificial boards with the thickness of 12.1-15 mm for 120min, and heating E2-grade artificial boards with the thickness of 15.1-22 mm for 140 min;
(2) after the artificial board is subjected to aldehyde reduction and VOC removal treatment in a high-temperature cabin, conveying the artificial board into equipment for spraying a nano oxidation purifying agent by a roller, and conveying the artificial board into a constant-temperature cabin for physical and chemical property balance treatment after the double surfaces of the artificial board are sprayed with the nano oxidation purifying agent by the roller;
(3) conveying the E1-grade artificial boards subjected to roller spraying of the nano oxidation purifying agent into a constant temperature cabin according to different thicknesses, setting the humidity in the constant temperature cabin to be 70%, heating the E1-grade artificial boards with the thickness of not more than 12mm at 60 ℃ for 90min, heating the E1-grade artificial boards with the thickness of 12.1-15 mm at 70 ℃ for 120min, and heating the E1-grade artificial boards with the thickness of 15.1-22 mm at 80 ℃ for 120 min; conveying the E2-grade artificial boards sprayed with the nano oxidation purifying agent by the rollers into a constant temperature cabin according to different thicknesses, setting the humidity in the constant temperature cabin to be 70%, heating the E2-grade artificial board with the thickness of not more than 12mm at 80 ℃ for 90min, heating the E2-grade artificial board with the thickness of 12.1-15 mm at 85 ℃ for 120min, and heating the E2-grade artificial board with the thickness of 15.1-22 mm at 95 ℃ for 120 min.
The structures of the high-temperature chamber and the thermostatic chamber in this embodiment are the same as those of the high-temperature chamber and the thermostatic chamber in embodiment 1.
The grade E1 artificial board treated by the method of the embodiment is named C1, and the grade E2 artificial board is named C2.
Example 4
The embodiment provides an aldehyde-reducing and VOC-removing method for a graphene heating artificial board, which comprises the following steps:
(1) conveying E1-grade artificial boards into a high-temperature chamber according to different thicknesses, setting the heating temperature in the high-temperature chamber to 118 ℃, heating E1-grade artificial boards with the thickness of not more than 12mm for 92min, heating E1-grade artificial boards with the thickness of 12.1-15 mm for 122min, and heating E1-grade artificial boards with the thickness of 15.1-22 mm for 142 min; conveying E2-grade artificial boards into a high-temperature chamber according to different thicknesses, setting the heating temperature in the high-temperature chamber to be 128 ℃, heating E2-grade artificial boards with the thickness of not more than 12mm for 92min, heating E2-grade artificial boards with the thickness of 12.1-15 mm for 122min, and heating E2-grade artificial boards with the thickness of 15.1-22 mm for 142 min;
(2) after the artificial board is subjected to aldehyde reduction and VOC removal treatment in a high-temperature cabin, conveying the artificial board into equipment for spraying a nano oxidation purifying agent by a roller, and conveying the artificial board into a constant-temperature cabin for physical and chemical property balance treatment after the double surfaces of the artificial board are sprayed with the nano oxidation purifying agent by the roller;
(3) conveying the E1-grade artificial boards subjected to roller spraying of the nano oxidation purifying agent into a constant temperature cabin according to different thicknesses, setting the humidity in the constant temperature cabin to be 68%, heating the E1-grade artificial boards with the thickness of not more than 12mm at 59 ℃ for 88min, heating the E1-grade artificial boards with the thickness of 12.1-15 mm at 69 ℃ for 118min, and heating the E1-grade artificial boards with the thickness of 15.1-22 mm at 79 ℃ for 118 min; conveying the E2-grade artificial board sprayed with the nano oxidation purifying agent by the roller into a constant temperature cabin according to different thicknesses, setting the humidity in the constant temperature cabin to be 65-75%, heating the E2-grade artificial board with the thickness of not more than 12mm at 79 ℃ for 88min, heating the E2-grade artificial board with the thickness of 12.1-15 mm at 84 ℃ for 118min, and heating the E2-grade artificial board with the thickness of 15.1-22 mm at 94 ℃ for 118 min.
The structures of the high-temperature chamber and the thermostatic chamber in this embodiment are the same as those of the high-temperature chamber and the thermostatic chamber in embodiment 1.
The grade E1 artificial board treated by the method of the embodiment is named D1, and the grade E2 artificial board is named D2.
Example 5
The embodiment provides an aldehyde-reducing and VOC-removing method for a graphene heating artificial board, which comprises the following steps:
(1) conveying E1-grade artificial boards into a high-temperature chamber according to different thicknesses, setting the heating temperature in the high-temperature chamber to be 122 ℃, heating E1-grade artificial boards with the thickness of not more than 12mm for 93min, heating E1-grade artificial boards with the thickness of 12.1-15 mm for 122min, and heating E1-grade artificial boards with the thickness of 15.1-22 mm for 142 min; conveying E2-grade artificial boards into a high-temperature chamber according to different thicknesses, setting the heating temperature in the high-temperature chamber to 132 ℃, heating E2-grade artificial boards with the thickness of not more than 12mm for 93min, heating E2-grade artificial boards with the thickness of 12.1-15 mm for 123min, and heating E2-grade artificial boards with the thickness of 15.1-22 mm for 143 min;
(2) after the artificial board is subjected to aldehyde reduction and VOC removal treatment in a high-temperature cabin, conveying the artificial board into equipment for spraying a nano oxidation purifying agent by a roller, and conveying the artificial board into a constant-temperature cabin for physical and chemical property balance treatment after the double surfaces of the artificial board are sprayed with the nano oxidation purifying agent by the roller;
(3) conveying the E1-grade artificial boards subjected to roller spraying of the nano oxidation purifying agent into a constant temperature cabin according to different thicknesses, setting the humidity in the constant temperature cabin to 73%, heating the E1-grade artificial boards with the thickness not greater than 12mm at 61 ℃ for 93min, heating the E1-grade artificial boards with the thickness of 12.1-15 mm at 73 ℃ for 122min, and heating the E1-grade artificial boards with the thickness of 15.1-22 mm at 83 ℃ for 122 min; conveying the E2-grade artificial boards sprayed with the nano oxidation purifying agent by the rollers into a constant temperature cabin according to different thicknesses, setting the humidity in the constant temperature cabin to be 73%, heating the E2-grade artificial board with the thickness of not more than 12mm at 82 ℃ for 93min, heating the E2-grade artificial board with the thickness of 12.1-15 mm at 86 ℃ for 122min, and heating the E2-grade artificial board with the thickness of 15.1-22 mm at 96 ℃ for 122 min.
The structures of the high-temperature chamber and the thermostatic chamber in this embodiment are the same as those of the high-temperature chamber and the thermostatic chamber in embodiment 1.
The grade E1 artificial board processed by the method of the embodiment is designated as E1, and the grade E2 artificial board is designated as E2.
Example 6
The embodiment provides an aldehyde-reducing and VOC-removing method for a graphene heating artificial board, which comprises the following steps:
(1) conveying E1-grade artificial boards into a high-temperature chamber according to different thicknesses, setting the heating temperature in the high-temperature chamber to 121 ℃, heating for 86min for E1-grade artificial boards with the thickness of not more than 12mm, heating for 117min for E1-grade artificial boards with the thickness of 12.1-15 mm, and heating for 137min for E1-grade artificial boards with the thickness of 15.1-22 mm; conveying E2-grade artificial boards into a high-temperature chamber according to different thicknesses, setting the heating temperature in the high-temperature chamber to be 131 ℃, heating the E2-grade artificial board with the thickness of not more than 12mm for 86min, heating the E2-grade artificial board with the thickness of 12.1-15 mm for 117min, and heating the E2-grade artificial board with the thickness of 15.1-22 mm for 137 min;
(2) after the artificial board is subjected to aldehyde reduction and VOC removal treatment in a high-temperature cabin, conveying the artificial board into equipment for spraying a nano oxidation purifying agent by a roller, and conveying the artificial board into a constant-temperature cabin for physical and chemical property balance treatment after the double surfaces of the artificial board are sprayed with the nano oxidation purifying agent by the roller;
(3) conveying the E1-grade artificial boards sprayed with the nano oxidation purifying agent by the rollers into a constant temperature cabin according to different thicknesses, wherein the humidity in the constant temperature cabin is set to be 69%, the E1-grade artificial boards with the thickness of not more than 12mm are heated at 59 ℃ for 90min, the E1-grade artificial boards with the thickness of 12.1-15 mm are heated at 69 ℃ for 121min, and the E1-grade artificial boards with the thickness of 15.1-22 mm are heated at 79 ℃ for 121 min; conveying the E2-grade artificial boards sprayed with the nano oxidation purifying agent by the rollers into a constant temperature cabin according to different thicknesses, setting the humidity in the constant temperature cabin to be 69%, heating the E2-grade artificial board with the thickness of not more than 12mm at 79 ℃ for 90min, heating the E2-grade artificial board with the thickness of 12.1-15 mm at 83 ℃ for 121min, and heating the E2-grade artificial board with the thickness of 15.1-22 mm at 93 ℃ for 121 min.
The structures of the high-temperature chamber and the thermostatic chamber in this embodiment are the same as those of the high-temperature chamber and the thermostatic chamber in embodiment 1.
The grade E1 artificial board treated by the method of the embodiment is designated as F1, and the grade E2 artificial board is designated as F2.
Comparative example 1
The comparison example provides an aldehyde-reducing and VOC-removing method for an artificial board, which comprises the following steps:
(1) conveying E1-grade artificial boards into a high-temperature chamber according to different thicknesses, setting the heating temperature in the high-temperature chamber to be 115 ℃, heating E1-grade artificial boards with the thickness of not more than 12mm for 95min, heating E1-grade artificial boards with the thickness of 12.1-15 mm for 125min, and heating E1-grade artificial boards with the thickness of 15.1-22 mm for 145 min; conveying E2-grade artificial boards into a high-temperature chamber according to different thicknesses, setting the heating temperature in the high-temperature chamber to be 120 ℃, heating E2-grade artificial boards with the thickness of not more than 12mm for 90min, heating E2-grade artificial boards with the thickness of 12.1-15 mm for 120min, and heating E2-grade artificial boards with the thickness of 15.1-22 mm for 140 min.
The grade E1 wood-based panel treated by the method of this comparative example was designated G1 and the grade E2 wood-based panel was designated G2.
Comparative example 2
The comparison example provides an aldehyde-reducing and VOC-removing method for an artificial board, which comprises the following steps:
(1) conveying the E1-grade artificial board sprayed with the nano oxidation purifying agent by the roller into a constant temperature chamber according to different thicknesses, wherein the humidity in the constant temperature chamber is set to be 65%, the E1-grade artificial board with the thickness of not more than 12mm is heated at 60 ℃ for 90min, the E1-grade artificial board with the thickness of 12.1-15 mm is heated at 70 ℃ for 120min, and the E1-grade artificial board with the thickness of 15.1-22 mm is heated at 80 ℃ for 120 min; conveying the E2-grade artificial boards subjected to roller spraying of the nano oxidation purifying agent into a constant temperature cabin according to different thicknesses, setting the humidity in the constant temperature cabin to be 65%, heating the E2-grade artificial board with the thickness of not more than 12mm at 80 ℃ for 90min, heating the E2-grade artificial board with the thickness of 12.1-15 mm at 85 ℃ for 120min, and heating the E2-grade artificial board with the thickness of 15.1-22 mm at 95 ℃ for 120 min.
The grade E1 wood-based panel treated by the method of this comparative example was designated as H1 and the grade E2 wood-based panel was designated as H2.
Experimental example 1
Three test pieces of 150mm multiplied by 50mm are respectively sawed from the E1-grade artificial boards and the E2-grade artificial boards A1 to F2 prepared by the treatment of examples 1 to 6 and the E1-grade artificial boards and the E2-grade artificial boards G1 to H2 prepared by the treatment of comparative examples 1 to 2, the formaldehyde emission of each test piece after different standing times is measured by using a dryer method, and finally, the average formaldehyde emission of the test pieces after different standing times is calculated, and the results are shown in Table 1.
TABLE 1 average Formaldehyde emission
Figure BDA0002656794190000161
Figure BDA0002656794190000171
As can be seen from table 1, the formaldehyde emission of the E1-grade artificial boards and the E2-grade artificial boards treated in examples 1 to 6 is gradually reduced with the increase of the standing time, while the formaldehyde emission of the E1-grade artificial boards and the E2-grade artificial boards treated in comparative examples 1 to 2 is not reduced with the increase of the standing time; e1-grade artificial boards and E2-grade artificial boards prepared by the treatment of the comparative example 1 are only treated by a high-temperature cabin; e1-grade artificial boards and E2-grade artificial boards prepared by the treatment of the comparative example 2 are only treated by a constant temperature cabin; the artificial board prepared by the method for reducing formaldehyde and removing VOC by heating the artificial board with graphene can fully release formaldehyde and VOC in the artificial board for removal, and avoids formaldehyde pollution and harm to users.
In conclusion, the artificial board prepared by the method for reducing formaldehyde and removing VOC of the graphene heating artificial board has high removal rate of formaldehyde and VOC in the artificial board, and avoids harm to users caused by continuous release of formaldehyde from the artificial board after treatment; the method for reducing aldehyde and removing VOC of the graphene heating artificial board is low in temperature, difficult to deform and damage the artificial board, capable of reducing energy consumption and environment-friendly.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. The aldehyde-reducing and VOC-removing method for the graphene heating artificial board is characterized by comprising the following steps:
(1) conveying the artificial boards into a high-temperature cabin according to different thicknesses for heating treatment;
(2) carrying out roller spraying of a nano oxidation purifying agent on the artificial board subjected to the heating treatment in the high-temperature cabin;
(3) conveying the artificial board treated by the roller-sprayed nano oxidation purifying agent into a constant-temperature cabin for treatment.
2. The aldehyde-reducing and VOC-removing method for the graphene heating artificial board according to claim 1, wherein the temperature in the high-temperature cabin in the step (1) is set to be 115-135 ℃.
3. The aldehyde-reducing and VOC-removing method for the graphene-heated artificial board according to claim 1, wherein in the step (1), the E1-grade artificial board with the thickness not greater than 12mm is heated for 85-95 min, the E1-grade artificial board with the thickness of 12.1-15 mm is heated for 115-125 min, and the E1-grade artificial board with the thickness of 15.1-22 mm is heated for 135-145 min; e2-grade artificial boards with the thickness not greater than 12mm are heated for 85-95 min, E2-grade artificial boards with the thickness of 12.1-15 mm are heated for 115-125 min, and E2-grade artificial boards with the thickness of 15.1-22 mm are heated for 135-145 min.
4. The aldehyde-reducing and VOC-removing method for the graphene heating artificial board according to claim 1, wherein in the step (3), the humidity in the constant-temperature cabin is set to be 65-75%.
5. The aldehyde-reducing and VOC-removing method for the graphene-heated artificial board according to claim 1, wherein in the step (3), the E1-grade artificial board with the thickness not greater than 12mm is heated at 57-63 ℃ for 85-95 min, the E1-grade artificial board with the thickness of 12.1-15 mm is heated at 67-73 ℃ for 115-125 min, and the E1-grade artificial board with the thickness of 15.1-22 mm is heated at 77-83 ℃ for 115-125 min; e2-grade artificial boards with the thickness of not more than 12mm are heated at 77-83 ℃ for 85-95 min, E2-grade artificial boards with the thickness of 12.1-15 mm are heated at 82-88 ℃ for 115-125 min, and E2-grade artificial boards with the thickness of 15.1-22 mm are heated at 92-98 ℃ for 115-125 min.
6. The formaldehyde-reducing and VOC-removing method for the graphene heating artificial board according to claim 1, wherein the high-temperature chamber and the constant-temperature chamber comprise a chamber body, a feeding port and a discharging port, the feeding port and the discharging port are arranged on opposite side walls of the chamber body, an extrusion molding heat insulation layer is laid on the inner wall surface of the chamber body, a flame-retardant heat insulation reflection plate is laid on the inner surface of the extrusion molding heat insulation layer, a plurality of graphene electric heating films are laid on the inner surface of the flame-retardant heat insulation reflection plate, an anti-static high-temperature non-woven fabric is laid on the inner surface of each graphene electric heating film, a plurality.
7. The aldehyde-reducing and VOC-removing method for the graphene heating artificial board according to claim 6, wherein a plurality of aluminum plates are laid on the inner surface of the anti-static high-temperature non-woven fabric; each aluminum plate is fixed on two adjacent hollow upright posts.
8. The aldehyde-reducing and VOC-removing method for the graphene heating artificial board according to claim 6, wherein a conveying member is arranged in the cabin, the conveying member comprises a board placing frame and a bracket fixed on the bottom wall of the board placing frame, the bottom wall of the bracket is provided with a sliding chute, and the bottom wall of the cabin is provided with a sliding rail matched with the sliding chute; the slide rails are distributed along the direction from the feed inlet to the discharge outlet.
9. The aldehyde-reducing and VOC-removing method for the graphene heating artificial board according to claim 6, wherein a frame of the cabin is a steel welding structure; the wall surface of the cabin body is made of heat-insulating asbestos artificial boards.
10. The aldehyde-reducing and VOC-removing method for the graphene heating artificial board according to claim 6, wherein a temperature control mechanism, a humidifying mechanism, a humidity control mechanism and a circulating air mechanism are arranged in the cabin.
CN202010890496.XA 2020-08-29 2020-08-29 Aldehyde-reducing and VOC-removing method for graphene heating artificial board Pending CN112025891A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001038707A (en) * 1999-07-30 2001-02-13 Mitsui Chemicals Inc Manufacture of wood fiberboard
CN101549511A (en) * 2009-05-22 2009-10-07 朱君山 Preparing method for non-formaldehyde intensified wooden floor
CN108638611A (en) * 2018-05-18 2018-10-12 浙江鹏远新材料股份有限公司 A kind of automatically cleaning heat insulating reflecting material and preparation method thereof
CN109249503A (en) * 2018-11-20 2019-01-22 成都市美康三杉木业有限公司 A kind of formaldehyde reduced numerical control device of high-temperature heat treatment plate and remove carbaldehyde Method
CN209787488U (en) * 2018-12-19 2019-12-13 浙江华正新材料股份有限公司 graphene electrothermal film

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001038707A (en) * 1999-07-30 2001-02-13 Mitsui Chemicals Inc Manufacture of wood fiberboard
CN101549511A (en) * 2009-05-22 2009-10-07 朱君山 Preparing method for non-formaldehyde intensified wooden floor
CN108638611A (en) * 2018-05-18 2018-10-12 浙江鹏远新材料股份有限公司 A kind of automatically cleaning heat insulating reflecting material and preparation method thereof
CN109249503A (en) * 2018-11-20 2019-01-22 成都市美康三杉木业有限公司 A kind of formaldehyde reduced numerical control device of high-temperature heat treatment plate and remove carbaldehyde Method
CN209787488U (en) * 2018-12-19 2019-12-13 浙江华正新材料股份有限公司 graphene electrothermal film

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