Method and installation for manufacture of material plates and device for sealing narrow sides of package of pressed material

FIELD: wood industry.

SUBSTANCE: pressed product package is poured on circulating forming belt conveyor by means of the dispersing device. Package of pressed material during transportation to the press by means of the sealing device is compacted to its narrow sides transversely to the production direction. The narrow sides in the direction of production are cut along the edges using for trimming device before the sealing device. Installation for manufacturing panels comprises a press device and dispersing device. Between the press and dispersing device, there is a sealing device for sealing the package material to be pressed. The device for trimming is arranged in the production direction before the sealing device. A device for sealing the narrow sides of the pressed material package comprises means for sealing the package material to be pressed.

EFFECT: increased strength plates.

16 cl, 7 dwg

 



 

Same patents:

FIELD: process engineering.

SUBSTANCE: invention relates to preheating of material laid over continuous circulating moulding mat belt in production of particle boards. For preheating of mat material on one or both sides microwave radiation is introduced therein. Material mat is compacted and hardened after feed into continuously operating extruder at definite pressure and temperature. For heating said mat microwaves in frequency band of 2400-2500 MHz are used. Said microwaves for every surface of said mat are generated in 20-300 microwave generators with 3-50 kW magnetrons each. Used heater is composed of continuous operation through-type furnace. 20-300 microwave generators with 3-50 kW magnetrons are arranged inside the furnace on every side to operate in 2400-2500 MHz frequency band.

EFFECT: higher efficiency of heating.

25 cl, 3 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to jointing the ends of wood sheet materials, particularly, to making mate grooves at said ends. Proposed method comprises, at least, driving the groove at end of said sheet material by rotary cutting tool. Note here that warped section of said end is leveled by clamping plate. This allows avoiding deep cutting and ensures equal size and shape grooves.

EFFECT: higher strength and reliability of joint.

4 cl, 25 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to production of wood-filled composite materials based on timber wastes and mineral binders. Proposed method comprises mixing wood filler with binder. Filler is treated in tight chamber in atmosphere of flue gases at 190-200C for 50-60 minutes. Then, prior to mixing, filler is processed in plasma-forming gas flow in discharge chamber at high-frequency generator power of 200-600 W and vacuum of 100-130 Pa for 250-280 s. Air is used as said plasma-forming gas fed at flow rate of 0.08-0.12 g/s. After mixing of filler and binder, molding and heat treatment are performed.

EFFECT: higher strength.

1 tbl, 2 ex

FIELD: wood working industry.

SUBSTANCE: invention relates to wood working industry and may be used in production of multilayer particle boards. A line to manufacture particle boards comprises a belt conveyor, a machine to generate a chip carpet, a press and a spraying plant installed upstream the press with a valve to supply water. At the same time the line is equipped with an additional spraying plant with a valve installed upstream a shaping machine and a unit to measure warpage of boards installed downstream the press. Outlets of the unit to measure warpage are connected to control inlets of spraying plant valves. Due to development of moisture asymmetry of surfaces in the initial chip carpet, as a result of which mechanical stress occurs in a formed board during pressing that compensate for its warpage, which starts immediately after unloading of a board from the press, warpage in finished boards is eliminated.

EFFECT: invention may be used in production of multilayer wooden boards.

2 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to recovery of solid household wastes into polymer-wood composite material to be used in production of components and parts of machines, equipment and construction structures. Proposed method comprises wastes mincing, mixing, thermal extrusion and activation. Activation is performed by magnetic-acoustic resonance effects in the frequency range of 5 to 15 kHz and radiation power of 15 to 20 mW.

EFFECT: higher efficiency and rate, improved mechanical properties.

4 cl, 2 tbl, 1 ex

Cooler for trays // 2335392

FIELD: heating.

SUBSTANCE: unit includes housing (1), conveyor (2) for tray (3) delivery, covering chambers (4, 5) of air and water cooling. In addition, air or water cooled chambers (4, 5) are provided with walls (6), installed inside chambers (4, 5) along conveyor. Air cooled chamber (4) walls (6) are perforated, while water-cooled chambers (5) are made of capillary porous material with steam discharge pipes (9).

EFFECT: improvement of output and reliability.

2 cl, 1 dwg

FIELD: construction.

SUBSTANCE: device for the steam treatment of a web moving relative to the device has steam outlet holes located on the steam head designed so that it can direct the steam pulse at an oblique angle relative to the web surface. Between the web surface and the steam outlet holes, a band screen is located, which moves synchronously with the web; the steam pulse can interact with the web through the band screen. The method involves manufacture of nonwoven fabric, its preliminary pressing, in particular, without binder curing, continuous pressing, during which the binder mainly cures, treatment with a steam pulse, which is directed at an oblique angle to the nonwoven fabric surface through the steam outlet holes on the rotatable steam head.

EFFECT: optimisation of continuous process during manufacture of plate-type structural element.

43 cl, 1 dwg

The invention relates to the production of chipboard-based particles of vegetable origin, in particular to press the composition and method of production of composite materials based on it

The invention relates to the production of chipboard-based particles of the wood plates differ in low emission of harmful and toxic substances

The invention relates to the production of wood pressing mass-based particles of vegetable origin, in particular to press composition, its preparation and method of production of composite materials based on it

FIELD: construction.

SUBSTANCE: device for the steam treatment of a web moving relative to the device has steam outlet holes located on the steam head designed so that it can direct the steam pulse at an oblique angle relative to the web surface. Between the web surface and the steam outlet holes, a band screen is located, which moves synchronously with the web; the steam pulse can interact with the web through the band screen. The method involves manufacture of nonwoven fabric, its preliminary pressing, in particular, without binder curing, continuous pressing, during which the binder mainly cures, treatment with a steam pulse, which is directed at an oblique angle to the nonwoven fabric surface through the steam outlet holes on the rotatable steam head.

EFFECT: optimisation of continuous process during manufacture of plate-type structural element.

43 cl, 1 dwg

Cooler for trays // 2335392

FIELD: heating.

SUBSTANCE: unit includes housing (1), conveyor (2) for tray (3) delivery, covering chambers (4, 5) of air and water cooling. In addition, air or water cooled chambers (4, 5) are provided with walls (6), installed inside chambers (4, 5) along conveyor. Air cooled chamber (4) walls (6) are perforated, while water-cooled chambers (5) are made of capillary porous material with steam discharge pipes (9).

EFFECT: improvement of output and reliability.

2 cl, 1 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to recovery of solid household wastes into polymer-wood composite material to be used in production of components and parts of machines, equipment and construction structures. Proposed method comprises wastes mincing, mixing, thermal extrusion and activation. Activation is performed by magnetic-acoustic resonance effects in the frequency range of 5 to 15 kHz and radiation power of 15 to 20 mW.

EFFECT: higher efficiency and rate, improved mechanical properties.

4 cl, 2 tbl, 1 ex

FIELD: wood working industry.

SUBSTANCE: invention relates to wood working industry and may be used in production of multilayer particle boards. A line to manufacture particle boards comprises a belt conveyor, a machine to generate a chip carpet, a press and a spraying plant installed upstream the press with a valve to supply water. At the same time the line is equipped with an additional spraying plant with a valve installed upstream a shaping machine and a unit to measure warpage of boards installed downstream the press. Outlets of the unit to measure warpage are connected to control inlets of spraying plant valves. Due to development of moisture asymmetry of surfaces in the initial chip carpet, as a result of which mechanical stress occurs in a formed board during pressing that compensate for its warpage, which starts immediately after unloading of a board from the press, warpage in finished boards is eliminated.

EFFECT: invention may be used in production of multilayer wooden boards.

2 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to production of wood-filled composite materials based on timber wastes and mineral binders. Proposed method comprises mixing wood filler with binder. Filler is treated in tight chamber in atmosphere of flue gases at 190-200C for 50-60 minutes. Then, prior to mixing, filler is processed in plasma-forming gas flow in discharge chamber at high-frequency generator power of 200-600 W and vacuum of 100-130 Pa for 250-280 s. Air is used as said plasma-forming gas fed at flow rate of 0.08-0.12 g/s. After mixing of filler and binder, molding and heat treatment are performed.

EFFECT: higher strength.

1 tbl, 2 ex

FIELD: process engineering.

SUBSTANCE: invention relates to jointing the ends of wood sheet materials, particularly, to making mate grooves at said ends. Proposed method comprises, at least, driving the groove at end of said sheet material by rotary cutting tool. Note here that warped section of said end is leveled by clamping plate. This allows avoiding deep cutting and ensures equal size and shape grooves.

EFFECT: higher strength and reliability of joint.

4 cl, 25 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to preheating of material laid over continuous circulating moulding mat belt in production of particle boards. For preheating of mat material on one or both sides microwave radiation is introduced therein. Material mat is compacted and hardened after feed into continuously operating extruder at definite pressure and temperature. For heating said mat microwaves in frequency band of 2400-2500 MHz are used. Said microwaves for every surface of said mat are generated in 20-300 microwave generators with 3-50 kW magnetrons each. Used heater is composed of continuous operation through-type furnace. 20-300 microwave generators with 3-50 kW magnetrons are arranged inside the furnace on every side to operate in 2400-2500 MHz frequency band.

EFFECT: higher efficiency of heating.

25 cl, 3 dwg

FIELD: metallurgy.

SUBSTANCE: invention relates to methods and devices for affecting processing characteristics of individual regions of sheet materials. Method includes fixing on work bench sheet material, or pre-compacted material or material in form of a fibrous mass. Placing at least one applicator on upper and/or lower sides of material. Applicator is moved from upper and/or lower side of material and improving medium is fed under pressure into separate areas of materials. Compression performed on pre-compacted material or material in form of a pulp sheet to form a predetermined thickness.

EFFECT: ensuring efficiency of action on separate areas of materials by providing a sealing system.

40 cl, 7 dwg

FIELD: wood industry.

SUBSTANCE: pressed product package is poured on circulating forming belt conveyor by means of the dispersing device. Package of pressed material during transportation to the press by means of the sealing device is compacted to its narrow sides transversely to the production direction. The narrow sides in the direction of production are cut along the edges using for trimming device before the sealing device. Installation for manufacturing panels comprises a press device and dispersing device. Between the press and dispersing device, there is a sealing device for sealing the package material to be pressed. The device for trimming is arranged in the production direction before the sealing device. A device for sealing the narrow sides of the pressed material package comprises means for sealing the package material to be pressed.

EFFECT: increased strength plates.

16 cl, 7 dwg

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