CN1440325A - Method and device for dry-binding particles in form of fibres and chips - Google Patents

Method and device for dry-binding particles in form of fibres and chips Download PDF

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Publication number
CN1440325A
CN1440325A CN 01812441 CN01812441A CN1440325A CN 1440325 A CN1440325 A CN 1440325A CN 01812441 CN01812441 CN 01812441 CN 01812441 A CN01812441 A CN 01812441A CN 1440325 A CN1440325 A CN 1440325A
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CN
China
Prior art keywords
air
hollow body
mixing apparatus
carry
cyclone separator
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Granted
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CN 01812441
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Chinese (zh)
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CN1205005C (en
Inventor
约翰·伦哈茨贝格
汉斯－约阿希姆·艾尔迪
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Binos Technologies & Co KG GmbH
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Binos Technologies & Co KG GmbH
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Publication of CN1440325A publication Critical patent/CN1440325A/en
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Publication of CN1205005C publication Critical patent/CN1205005C/en
Anticipated expiration legal-status Critical
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material
    • B27N1/02—Mixing the material with binding agent
    • B27N1/0218—Mixing the material with binding agent in rotating drums

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The invention relates to method and device of particles by dye type agglutination in the form of fibres and chips delivered pneumatically to a mixing device (8, 8') comprising a hollow body (35) which extends essentially horizontally; via an inlet (41). The particles (2) are transported to an outlet (42) of the mixing device (8, 8') by the rotation of a shaft (36) which extends in the hollow body (35), essentially over the entire length thereof, and which has mixing tools (37); and by transport air, which is conveyed to the hollow body (35) on a rear face thereof. A binding agent is applied to the particles (2) from the rear face of the hollow body (35), through binding nozzles (43), and after exiting the mixing device (8, 8'), the particles (2) are conveyed to a cyclone (10, 13'). Said transport air is at least partially waste air which is fed back from the cyclone (10, 13) and guided directly into the mixing device (8, 8').

Description

The method and apparatus of dry gluing that is used for the bits slag of fiber and fragment shape
The present invention relates to a kind of as described in the preamble by claim 1 or claim 9, be used for method and apparatus by the dry gluing of the material of especially lignocellulose-containing and/or fibre-bearing element or bits slag that form by plastics, glass fibre etc., fiber and/or fragment shape.
Being used to make the fiber gummed that medium density fibre board (MDF) or high density fiberboard or other be similar to the material of plate both can also can carry out under the drying regime of fiber under the dampness of fiber.The advantage of bonding fiber is under drying regime, and the glue consumption rate glues together few under dampness.Secondly the pollution to environment is less when dry gluing, because the increasing discharging that brings the formaldehyde of using from glue mixing water along with the drying of the fiber of gummed.
For example by the method and apparatus of the dry gluing of known a kind of fiber that is used for lignocellulose-containing and/or fibre-bearing element of DE3313380C2 and fragment.
In the known method of this type, provide the transmission air by the suction room air at the rear end face place of hollow body.Here because this by indirect conveying of transmission air and bigger room air deposit, owing to pursue as far as possible little energy consumption, the conveying air that is used for mixing apparatus can only have lower temperature, for example 20 ℃, and the bits slag arrives one with this temperature and is used for making in the forcing press of fiber and sawdust-board behind gummed, this is imperfect for actual proof.In order to reach the needed about 200 ℃ bits slag temperature of pressing process, must therefore carry out rapid heating to the bits slag.
Therefore the objective of the invention is, a kind of device of method He this type of this type is provided, make and when making fiber and sawdust-board, reduce energy consumption, and reduce the discharge capacity that forms by cyclone separator waste gas.
This purpose realizes by the feature of claim 1 aspect method.The bits slag is by the inlet input of pneumatic conveying through a mixing apparatus in this method, and mixing apparatus has the hollow body that a substantial horizontal is extended.One is rotated in hollow body, and this extends on the total length of hollow body basically, and has the mixed instrument of considering slag to be worth doing that is used for.The bits slag strengthens the exposed surface of bits slag thus by mixed instrument with by the conveying air that sucked by mixing apparatus and even, and by being arranged on the gummed nozzle gummed on the hollow body rear end face.Consider slag simultaneously to be worth doing and be transported to outlet, then flow to a cyclone separator by mixing apparatus and the inlet of carrying air from mixing apparatus.Owing to carry air to small part, that is to say at most that 100% is the waste gas of cyclone separator, it directly introduces mixing apparatus, can effectively utilize the heat of waste gas on the one hand.Carry air to be heated to higher temperature effectively by such method on the other hand, the waste gas of promptly directly introducing mixing apparatus heated before entering mixing apparatus.Different therewith, in traditional method, must heat whole room air, bring very big energy consumption thus.Secondly cyclone separator waste gas directly being introduced mixing apparatus, thereby continue to utilize waste gas, is favourable reducing as far as possible aspect the discharge capacity that is formed by waste gas.
Except when making fiber and sawdust-board, reducing the operating cost, the present invention also brings such advantage, promptly, reduce the compacting needed time of this plate, because the bits slag arrives in the forcing press with higher temperature, thus with the conventional method reduced in comparison be heated to about 200 ℃ heating period.
Carry tangent line that air preferably moves around the mixed instrument and flow to mixing apparatus, but it also can be along vertical input of hollow body in the direction of rotation of mixed instrument.
Carry air for example can have from 20 ℃ to one with the temperature of gluing together the relevant upper limit.The upper limit determines that by such temperature promptly, undesirable sclerosis takes place the glue that is coated on the bits slag when this temperature.
Carrying the air the pick of is fresh air.So for example for carrying air to form by 70% cyclone separator waste gas and 30% fresh air.This moment, fresh air was heated to the temperature of regulation, then mixed with cyclone separator waste gas, and this is useful, so that this mixture is flowed to mixing apparatus as the conveying air.
Secondly preferably imagine according to the present invention, will be called the air that intercepts air and flow to mixing apparatus in this wise, make it substantially parallelly along the hollow body inwall with preferably greater than the speed of carrying air or to move with the identical speed of conveying air.This intercepts air and can be arranged on the part or whole surface of hollow body inwall, particularly on whole following half inner wall surface.It is used for causing an air cushion layer on inwall, it prevents to consider to be worth doing the slag sintering on inwall.Thereby through the time of length just need be cleaned mixing apparatus.
The speed that intercepts air can be about twice of carrying air.The thickness that intercepts air layer can be for for example 4 to 5mm.The obstruct air is best and carry air from same source of the gas.If comprise residual bits slag in the waste gas of cyclone separator, intercepting air so can only be fresh air also, does not comprise the bits slag with the hole that is used in the feeding hollow body that intercepts air.Fresh air both can heat also and can not heat.
Can on wall, form condensate by the inwall of cooling hollow body in addition.Additionally prevent to consider to be worth doing slag attached on the wall by the condensate film on the inwall.
Above-mentioned purpose feature by claim 9 aspect device realizes.Here obtain basically and combine the same advantage that claim 1 is mentioned before this.The device preferred construction is listed in claim 10 to 17.
By claim 13, intercept air and can cover the most nearly 360 ° of hollow body periphery of inner wall.
Feature by claim 14 provides the latter half that is used at hollow body and produces the specially suitable method that intercepts air, wherein introduce the difference of the obstruct air of each circular passage according to the annulus width from the top, for example, extend to hollow body inside from inwall greater than 5mm.By what be provided with by claim 15, the circular passage is to minimum point, thereby narrows down gradually to the minimum point of hollow body cross section, guarantee to intercept air on the whole length of each annulus with identical pressure ejection.
Should be arranged on the whole circumference of hollow body if intercept air, so except that by being provided with two the circular passage of claim 14 and 15 respectively with the respective annular passage of an annulus, wherein these circular passages are provided with in this wise.Make them will intercept air is introduced hollow body along inwall the first half.
The air of keeping a public place clean that flows to the pipeline that connects mixing apparatus outlet and cyclone separator by claim 16 is used for feasiblely not considering slag deposits to be worth doing in this pipeline equally.
By means of an embodiment the present invention is done more detailed explanation below, here with reference to accompanying drawing.Accompanying drawing is represented:
Fig. 1 is used for the general chart of device of dry gluing fiber and fragment,
Fig. 2 press Fig. 1 the dry gluing device mixing apparatus schematic sectional view and
Fig. 3 presses the cutaway view of the mixing apparatus of Fig. 2 along the A-A line.
Has a storage bin 1 that has fiber or a fragment shape bits slag 2 by the dry gluing device of Fig. 1.Storage bin 1 has a conveyer belt 3, and belt scale 4 is carried in its inside built-in.On conveyer belt 3, connect a breeches pipe 5, it will consider slag 2 by two mixing apparatus 8,8 of a distributing valve 6 introducings ' input pipe 7,7 '.The mixing apparatus 8,8 that below will describe in detail by means of Fig. 2 and 3 at output ' second cyclone separator 13 of separator is connected by pipeline 9,9 ' be used as afterwards with first cyclone separator 10 and as preceding separator, and cyclone separator 13 is connected with cyclone separator 10 by another pipeline 11 with a fan 12.The bits slag 2 that separates in two cyclone separators 10,13 flows to a common fiber air classifier (Fasersichter) 15 by a common pipeline 14, and the fiber air classifier has a hot air inlet 16, and is used for the outlet and that bits slag 2 further flows to a unillustrated forming machine is used for the outlet 18 of waste material.
The waste gas of cyclone separator 13 is partly introduced one by a pipeline 19 and is carried in the pipeline 20 of fresh air.Fresh air is through a heating unit 21 input channels 20, and fresh air can be heated to the temperature of hope with heating unit.With 22 bypasses that are used for regulating air of representing heating unit 21.Fresh air pipe 20 is transformed into a pipeline 25 with a fan 23 and a choke valve 24, this pipeline be used for conveying air input mixing apparatus 8,8 '.Bifurcated goes out a pipeline 26 that is used for air is imported breeches pipe 5 before choke valve 24.
The mixing air of forming by the waste gas and the fresh air of cyclone separator 10, the 13 obstruct air that a part will illustrate as the back in pipeline 20 through another pipeline 27 and a fan 28 flow to mixing apparatus 8,8 '.Secondly the part of the mixing air in pipeline 20 through another pipeline 29 and fan 30 flow to bypass duct 31 and 31 ', this bypass duct walk around mixing apparatus 8,8 ', feed then pipeline 9,9 '.Because pipeline 7,7 ' by bypass duct 32,32 ' with pipeline 9,9 ' be connected, bypass duct 32,32 ' be used for when the wet type gummed that cleans mixing apparatus and therefore carry out, walk around mixing apparatus 8,8 ', the bifurcated of bypass duct 31,31 ' before its outlet go out pipeline 9,9 '.
As shown in Figure 2, the mixing apparatus 8 that mixing apparatus 8 or structure are identical ' have a columniform basically hollow body 35 that is installed on shank 33 and 34.In hollow body 35 with Reference numeral 52 and 52 ' supporting one with many mixed instruments 37 the axle 36.Axle 36 drives by drive unit 38, and uses water cooling by a refrigerating head 39.
Hollow body 35 has double wall 40, can use water cooling equally by the double wall hollow body.Hollow body 35 has one and is used for exporting 42 by the inlet 41 and of pipeline 7 pneumatic input bits slags 2, and outlet is connected with pipeline 9.
With inlet 41 adjacent hollow body rear end faces in the first half of hollow body 35 one binder removal is set semicirclely and closes nozzle 43.Will be by a supply pipe 44 from the liquid glue input gummed nozzle 43 of unillustrated glue material-storage jar.
Box end cap 45 sealings of case before the rear end face of hollow body is called by one.Preceding case 45 has an inlet 46 that is used for by the conveying air of pipeline 25 inputs.This inlet 46 is provided with like this, and the feasible air of carrying is imported in the hollow body 35 along being passed between the gummed nozzle by the direction of rotation of the axle 36 shown in the arrow 47.Avoid the vortex of delivery air in this way, thereby prevent undesirable eddy current of bits slag 2 in hollow body 35.
Secondly, preceding case 45 also have two circular passages 48 and 48 ', they are from an inlet 49 or 49 that links to each other with pipeline 27 ' the extend to minimum point 50 of hollow body 35 always.If circular passage 48,48 ' on hollow body 35 the latter halfs, extend, so they have respectively an annulus 51 and 51 '.Intercept air by annulus 51,51 ' enter hollow body 35, and move along its inwall by higher speed.For make the pressure that intercepts air annulus 51,51 ' whole length on be uniformly, circular passage 48,48 ' have annulus 51 and 51 ' to a section of the minimum point 50 of hollow body 35, narrow down gradually.Annulus 51,51 ' have an about spread length of 4 to 5mm.
Bits slag 2 passes hollow body 35 by entering the mouth 41 mixed instruments that are rotated after entering hollow body 35 37 and carry air to carry, and at this moment considers the glue spray that slag is used ejection from gummed nozzle 43 to be worth doing.Carry the speed of air can be for example 24m/s.The speed that intercepts air is for for example about 40 to 50m/s.Thereby on the hollow body inwall, form an air cushion layer by intercepting air, intercepting air may be attached to the bits slag 2 on the wall because its very high speed is taken away, to consider slag to be worth doing and send back in the conveying air, and prevent to consider to be worth doing slag 2 sintering on wall, and when it gets loose, form agglomerate.Because by intercepting the air cushion that air forms, compared with prior art, mixing apparatus 8 can have longer running time before it need clean.
In pipeline 20, produce, and as carry gas, intercept air and with act on pipeline 9,9 ' the Air mixing air of keeping a public place clean can be for example 70% be the waste gas of cyclone separator 10,13 and the fresh air of 30% heating.By the fresh air of input heating, the temperature of mixing air can be adjusted to for example 80 ℃, can also arrive higher temperature in case of necessity.Because carry air directly import mixing apparatus 8,8 ', being favourable aspect the energy, shortened the press time in the forcing press after is connected forming machine than higher temperature thus.
Certainly also can be provided for related device dry gluing, that have only a mixing apparatus according to the present invention.

Claims (17)

1. be used for method, wherein by the dry gluing of the material of lignocellulose-containing and/or fibre-bearing element or bits slag (2) that form by plastics, glass fibre etc., fiber and/or fragment shape
Bits slags (2) pneumatically flow to a mixing apparatus (8,8 ') with hollow body (35) of substantial horizontal extension by inlet (41),
Bits slags (2) by one that in hollow body (35), on its whole length, extend basically, as to have mixed instrument (37) axle (36) rotation and locate by the outlet (42) that the conveying air is transported to mixing apparatus (8,8 '),
Glue is sprayed on the bits slags (2) by gummed nozzle (43) from the rear end face of hollow body (35), and
Bits slags (2) flow to a cyclone separator (10,13) behind output mixing apparatus (8,8 '),
It is characterized by:
(10,13) feed back, directly introduce the waste gas of mixing apparatus (8,8 ') to small part from cyclone separator to carry air.
2. press the method for claim 1,
It is characterized by: carry air tangentially to introduce hollow body (35) along the direction of rotation (47) of axle (36).
3. press the method for claim 1 or 2,
It is characterized by: carry air have from 20 ℃ to one according to glue the temperature of the fixed upper limit, the upper limit begins sclerosis by glue and determines.
4. by each method of aforesaid right requirement,
It is characterized by: carrying air partly is fresh air.
5. press the method for claim 4,
It is characterized by: fresh air heated before the input hollow body, then mixed with cyclone separator waste gas.
6. by each method of aforesaid right requirement,
It is characterized by: mixing apparatus (8,8 ') is imported in this wise and is intercepted air, makes it basically along the inwall of hollow body (35) and be parallel to inwall and move with the speed identical with carrying air or to be higher than the speed of carrying air.
7. press the method for claim 6,
It is characterized by: the speed that intercepts air approximately is to carry the twice of air velocity so big.
8. by each method of aforesaid right requirement,
It is characterized by: on hollow body (35) inwall, form condensate.
9. be used for device, have by the dry gluing of the material of lignocellulose-containing and/or fibre-bearing element or bits slag (2) that form by plastics, glass fibre etc., fiber and/or fragment shape,
One hollow body (35) and with substantial horizontal extension is used for pneumatically importing the mixing apparatus (8,8 ') of the inlet (41) of hollow body (35) with considering slags (2) to be worth doing,
One that on the whole length of hollow body (35), extend basically, as to have mixed instrument (37) axle (36),
One the input pipe that is used to carry air on hollow body (35) rear end face,
The outlet (42) of a gummed nozzle (43) on hollow body (35) rear end face and a mixing apparatus (8,8 '), it is connected with cyclone separator (10,13) by a pipeline (9,9 ', 11),
It is characterized by:
Be provided with mechanism (19,23,25,45), and make to carry air to small part be feed back, directly introduce the waste gas of the cyclone separator (10,13) of mixing apparatus (8,8 ').
10. press the device of claim 9,
It is characterized by: but carry air temperature adjustment to 20 ℃ to one according to glue fixed temperature upper limit, temperature upper limit begins sclerosis by glue and determines.
11. by the device of claim 9 or 10,
It is characterized by: be provided with a mechanism (20) so that carry air part real estate from fresh air.
12. by each device of claim 9 to 11,
It is characterized by: hollow body (35) rear end face has a box-shaped end cap (45), and described end cap band one is used to carry such inlet (46) of air, makes to carry air tangentially to import hollow body (35) along the direction of rotation (47) of axle (36).
13. by each device of claim 9 to 12,
It is characterized by: be provided with a mechanism (27,28,45), so that can flow to mixing apparatus (8,8 ') in this wise, make to intercept air basically along the inwall of hollow body (35) and be parallel to inwall and on around the small part hollow body, moving with the speed identical or to be higher than the speed of carrying air with carrying air with intercepting air.
14. by the device of claim 13,
It is characterized by: described mechanism has two circular passages (48,48 ') that are arranged on hollow body (35) rear end face, they symmetrically respectively with bottom around the hollow body of an annulus (51,51 ') 1/4th on extend, intercept air and introduce hollow body (35) by described annulus.
15. by the device of claim 14,
It is characterized by: described circular passage (51,51 ') narrow down till the input hole (49,49 ') that intercepts air plays a minimum point (50) gradually.
16. by each device of claim 9 to 15,
It is characterized by: be provided with mechanism (29,30,31,31 '), so that locate to carry the air of keeping a public place clean to the pipeline (9,9 ') that connects outlet (42) and cyclone separator (10) in the outlet (42) of contiguous mixing apparatus (8,8 ').
17. by each device of claim 9 to 16,
It is characterized by: be provided with two mixing apparatus that are arranged in parallel (8,8 ').
CN 01812441 2000-07-07 2001-06-23 Method and device for dry-binding particles in form of fibres and chips Expired - Fee Related CN1205005C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10032592.0 2000-07-07
DE2000132592 DE10032592C1 (en) 2000-07-07 2000-07-07 Dry adhesive application process for fibers and chips involves supplying exhaust air from cyclone directly to mixing device to serve as transporting air

Publications (2)

Publication Number Publication Date
CN1440325A true CN1440325A (en) 2003-09-03
CN1205005C CN1205005C (en) 2005-06-08

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Application Number Title Priority Date Filing Date
CN 01812441 Expired - Fee Related CN1205005C (en) 2000-07-07 2001-06-23 Method and device for dry-binding particles in form of fibres and chips

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CN (1) CN1205005C (en)
AU (1) AU2001279682A1 (en)
DE (1) DE10032592C1 (en)
RU (1) RU2266815C2 (en)
WO (1) WO2002004183A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100540245C (en) * 2004-11-10 2009-09-16 刨花板有限公司 Prevent the method and apparatus of the fiber contamination of transport device by freshly-sized
CN101522379B (en) * 2006-12-13 2011-04-27 西姆佩尔坎普机械设备制造有限责任公司和两合公司 Installation for applying glue to fibers for the production of fiberboard
CN107160529A (en) * 2017-07-14 2017-09-15 湖北凯利板业有限公司 A kind of straw powder material glue mixing pavement system
CN111844340A (en) * 2020-08-05 2020-10-30 曹李 Shaving board production and processing technology

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10153593B4 (en) * 2001-11-02 2005-11-17 Fritz Egger Gmbh & Co Apparatus and method for wetting wood fibers with a binder fluid
RU2466863C1 (en) * 2011-03-15 2012-11-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Поволжский государственный технологический университет" Device for obtaining wood concrete

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006438C2 (en) * 1980-02-21 1983-09-01 Lödige, Fritz Process for charging a continuous mixer and continuous mixer
DE3313380C2 (en) * 1983-04-13 1985-11-14 Bison-Werke Bähre & Greten GmbH & Co KG, 3257 Springe Method and device for continuously mixing solid particles with at least one liquid
IT1307924B1 (en) * 1999-01-25 2001-11-29 Cmp Spa GLUING MACHINE FOR PLANTS TO PRODUCE WOOD INFIBRA PANELS.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100540245C (en) * 2004-11-10 2009-09-16 刨花板有限公司 Prevent the method and apparatus of the fiber contamination of transport device by freshly-sized
CN101522379B (en) * 2006-12-13 2011-04-27 西姆佩尔坎普机械设备制造有限责任公司和两合公司 Installation for applying glue to fibers for the production of fiberboard
CN107160529A (en) * 2017-07-14 2017-09-15 湖北凯利板业有限公司 A kind of straw powder material glue mixing pavement system
CN111844340A (en) * 2020-08-05 2020-10-30 曹李 Shaving board production and processing technology
CN111844340B (en) * 2020-08-05 2022-04-26 临沂市华源经贸有限公司 Shaving board production and processing technology

Also Published As

Publication number Publication date
WO2002004183A1 (en) 2002-01-17
AU2001279682A1 (en) 2002-01-21
RU2266815C2 (en) 2005-12-27
DE10032592C1 (en) 2001-10-31
CN1205005C (en) 2005-06-08

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