CN107803914A - A kind of method for improving particieboard Solution on Air Forming Equipment material mouth flash - Google Patents
A kind of method for improving particieboard Solution on Air Forming Equipment material mouth flash Download PDFInfo
- Publication number
- CN107803914A CN107803914A CN201711031639.6A CN201711031639A CN107803914A CN 107803914 A CN107803914 A CN 107803914A CN 201711031639 A CN201711031639 A CN 201711031639A CN 107803914 A CN107803914 A CN 107803914A
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- Prior art keywords
- negative
- air
- case
- mating formation
- fan
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Classifications
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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
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
-
- 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
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
- B27N3/14—Distributing or orienting the particles or fibres
Abstract
The method that the present invention provides the improvement particieboard Solution on Air Forming Equipment material mouth flash that a kind of method is simple and convenient to operate.This method is mated formation using particieboard Solution on Air Forming Equipment, particieboard Solution on Air Forming Equipment includes case of mating formation, and positive pressure fan (1) is blown by the horizontal air door (3) and vertical air door (4) for being arranged on case anteriomedial of mating formation to case of mating formation is anterior；Top front of the outlet of chip metering device positioned at case of mating formation；Negative-pressure air fan (10) by case tail wind balance plate (8) upper and lower of mating formation it is upper and lower go out air door to case afterbody air draught of mating formation；It is plate blank conveying device (6) to mat formation below case；Improving the method for case lower front material mouth flash of mating formation is, regulation negative-pressure air fan air quantity YIt is negativeAnd/or malleation fan delivery YJustSo that YIt is negative≥YJust+6000m3/h。
Description
Technical field
The present invention relates to a kind of optimisation technique of Wood-based Panel Production technique, is a kind of improvement particieboard air-flow specifically
The method of spreading machine material mouth flash, so as to improve Surface Quality of Steel Billet of mating formation.
Background technology
At this stage, being to mat formation using a big defect of airflow pavement particieboard, the control of case air pressure inside is improper causes to dig
Flower blanking part is excessive, and especially at the material mouth of Solution on Air Forming Equipment, wood shavings are excessive not only to have impact on wood shavings Surface Quality of Steel Billet, more
The air quality of work on the spot environment is had a strong impact on, the health of employee cannot ensure；Particieboard Solution on Air Forming Equipment is mated formation case
Interior airflow field belongs to large-scale airflow field, and the stability and uniformity of air-flow are affected by many factors, it is difficult to realizes to airflow field
Effective control, the debugging efforts to airflow field air pressure are even more to consume huge manpower, so as to greatly reduce production efficiency.Cause
This, it is necessary to which the rational airflow field debugging technique that studies science becomes particularly urgent for particieboard Solution on Air Forming Equipment.
The content of the invention
It is an object of the invention to provide the improvement particieboard Solution on Air Forming Equipment material mouth flash that a kind of method is simple and convenient to operate
Method.
The method of the present invention for improving particieboard Solution on Air Forming Equipment material mouth flash, is carried out using particieboard Solution on Air Forming Equipment
Mat formation, particieboard Solution on Air Forming Equipment includes mating formation case, and positive pressure fan 1 is by being arranged on the horizontal air door 3 of case anteriomedial of mating formation
Blown with vertical air door 4 to case of mating formation is anterior；Top front of the outlet of chip metering device positioned at case of mating formation；Negative-pressure air fan 10
By the upper and lower of case tail wind balance plate 8 of mating formation it is upper and lower go out air door to case afterbody air draught of mating formation；It is slab to mat formation below case
Conveying device 6；Improving the method for case lower front material mouth flash of mating formation is, regulation negative-pressure air fan air quantity YIt is negativeAnd/or positive pressure fan
Air quantity YJustSo that YIt is negative≥YJust+6000m3/h。
The method of described improvement particieboard Solution on Air Forming Equipment material mouth flash, by the frequency X for changing negative-pressure air fanIt is negativeJust
The frequency X of pressure fanJustTo adjust negative-pressure air fan air quantity YIt is negativeWith malleation fan delivery YJust, YJust=285.6XJust+121m3/h；YIt is negative=
399.4XIt is negative+1282m3/h。
Beneficial effects of the present invention：Aligned before the production of particieboard airflow pavement by using hand-held wind speed air volume meter
Negative-pressure air fan frequency and air quantity are tested, and test data meets linear relation：YJust=285.6XJust+121m3/h；YIt is negative=
399.4XIt is negative+1282m3/ h, wherein, the frequency X of negative-pressure air fanIt is negative, the frequency X of positive pressure fanJust, negative-pressure air fan air quantity YIt is negative, malleation wind
Fan delivery YJust.Blower fan frequency is adjusted according to above-mentioned relation formula, carries out strip experiment, negative-pressure air fan is gradually debugged in pavement process
Frequency is to increase airflow field negative-pressure air fan throughput, final true by repeatedly debugging so as to improve spreading machine material mouth flash phenomena
It is scheduled in the unit interval and works as YIt is negative≥YJust+6000m3Negative-pressure air-flow amount in case of mating formation during/h is enough in pavement process the case material that will mat formation
The wood shavings of mouth different thicknesses drive toward negative-pressure air-flow flow direction.The inventive method is not only in particieboard airflow pavement production process
In improve the excessive phenomenon of wood shavings blanking, ensure that the sophistication of steel slab surface, the health of more employee provides guarantee.
Brief description of the drawings
Fig. 1 is particieboard Solution on Air Forming Equipment schematic diagram.
Fig. 2 is that material mouth atmospheric pressure state contrasts before air quantity is mended in negative-pressure air fan increase.
Fig. 3 is that material mouth atmospheric pressure state contrasts after air quantity is mended in negative-pressure air fan increase.
Fig. 4 is that the overdraught VELOCITY DISTRIBUTION cloud atlas of air quantity premutation section II is mended in negative-pressure air fan increase.
Fig. 5 is that the overdraught VELOCITY DISTRIBUTION cloud atlas of abrupt-change cross section II after air quantity is mended in negative-pressure air fan increase.
Embodiment
It is the specific embodiment of the present invention below, but the invention is not limited in these embodiments, without departing from the present invention
Thought spirit and scope under the details and form of technical solution of the present invention are modified or replaced, these modifications and replace
Each fall within protection scope of the present invention.
As shown in figure 1, particieboard Solution on Air Forming Equipment includes case 7 of mating formation, positive pressure fan 1 is by being arranged in case front portion of mating formation
Between horizontal air door 3 and vertical air door 4 to the anterior air-supply of case of mating formation, the air supply duct between positive pressure fan 1 and case front portion of mating formation
On be provided with air quantity uniform device 2；Top front of the outlet of chip metering device 5 positioned at case of mating formation；Negative-pressure air fan 10 passes through
Mat formation the upper and lower of case tail wind balance plate 8 it is upper and lower go out air door to case afterbody air draught of mating formation, negative-pressure air fan 10 and case tail of mating formation
Afterbody plate 9 is provided with air-suction duct between portion；It is plate blank conveying device 6 to mat formation below case.
Positive and negative pressure fan 1,10 starts, and metering device 5 is carried out down to shavings raw material after the interior flow field of case 7 of mating formation is stable
Material, distinguished and admirable act on for the air quantity uniform device 2 that shavings raw material is arrived realize sorting inside case of mating formation, final thickness wood shavings sink
Drop is output casing on plate blank conveying device 6；According to relational expression YJust=285.6XJust+121m3/h；YIt is negative=399.4XIt is negative+
1282m3/ h adjusts blower fan frequency, carries out strip experiment, and negative-pressure air fan frequency is gradually debugged in pavement process to increase air-flow
Field negative-pressure air fan throughput, so as to improve the flash phenomena of case material mouth 11 of mating formation, by repeatedly debugging, finally determine in the unit interval
It is interior to work as YIt is negative≥YJust+6000m3Negative-pressure air-flow amount in case of mating formation during/h is enough in pavement process the different thicknesses of case material mouth 11 that will mat formation
Wood shavings driven toward negative-pressure air-flow flow direction.
As shown in Figure 2,3, CFD air-flow field stimulations, simulation effect are carried out before and after negative-pressure air fan increases benefit air quantity to airflow field
Fruit meets practical flow field situation, and air quantity 6000m is mended when negative-pressure air fan increases3(Y before/hIt is negative=YJust), material mouth flash is serious and gas
It is disorderly on stream, so not only it had been unfavorable for steel slab surface sophistication but also had destroyed site environment air quality；Mended when negative-pressure air fan increases
Air quantity 6000m3(Y after/hIt is negative=YJust+6000m3/ h), material mouth flash phenomena disappears, and airflow field gradually tends to be steady, both beneficial to plate
Base surface sophistication improves site environment air quality again.When negative-pressure air fan benefit air quantity is smaller, turbulent flow easily occurs for airflow field
Phenomenon and wind speed concentration of local；When negative-pressure air fan benefit air quantity is larger, airflow field tends to be steady and wind speed is uniform.
As shown in Figure 4,5, CFD gas is carried out before and after negative-pressure air fan increases benefit air quantity to the wind speed profile on abrupt-change cross section II
Flow field simulation, simulation effect meet practical flow field situation, and air quantity 6000m is mended when negative-pressure air fan increases3Before/h, airflow field wind speed
Concentration of local and unstable；Air quantity 6000m is mended when negative-pressure air fan increases3After/h, airflow field wind speed tends to be uniform and stably.
The principal element for influenceing particieboard Solution on Air Forming Equipment material mouth flash is particieboard Solution on Air Forming Equipment structure close in itself
The matching relationship of sealing property and positive/negative-pressure fan delivery.This method exists according to the matching relationship of positive and negative pressure fan delivery and frequency
Linear relation Y in unit intervalJust=285.6XJust+121m3/h；YIt is negative=399.4XIt is negative+1282m3/ h is by airflow pavement box body
Interior air pressure is adjusted to poised state, passes through positive and negative pressure fan delivery inequality Y on this basisIt is negative≥YJust+6000m3/ h is adjusted to make material
The negative pressure state for meeting not flash is presented in mouth.This method for machine mat formation production before the debugging stage to atmospheric pressure state in case of mating formation
Regulation, the flash condition at spreading machine material mouth can be improved, so as to improve the sophistication of steel slab surface and improve scene
The air quality of working environment.
Claims (2)
1. a kind of method for improving particieboard Solution on Air Forming Equipment material mouth flash, is mated formation using particieboard Solution on Air Forming Equipment, dig
Card Solution on Air Forming Equipment includes case of mating formation, and positive pressure fan (1) is by being arranged on the horizontal air door (3) for case anteriomedial of mating formation and hanging down
Straight air door (4) is blown to case of mating formation is anterior；Top front of the outlet of chip metering device positioned at case of mating formation；Negative-pressure air fan (10)
By case tail wind balance plate (8) upper and lower of mating formation it is upper and lower go out air door to case afterbody air draught of mating formation；It is plate to mat formation below case
Cog transferring device (6)；It is characterized in that：Improving the method for case lower front material mouth flash of mating formation is, regulation negative-pressure air fan air quantity YIt is negative
And/or malleation fan delivery YJustSo that YIt is negative≥YJust+6000m3/h。
2. improve the method for particieboard Solution on Air Forming Equipment material mouth flash as claimed in claim 1, it is characterized in that：It is negative by changing
The frequency X of pressure fanIt is negativeWith the frequency X of positive pressure fanJustTo adjust negative-pressure air fan air quantity YIt is negativeWith malleation fan delivery YJust, YJust=
285.6XJust+121m3/h；YIt is negative=399.4XIt is negative+1282m3/h。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711031639.6A CN107803914B (en) | 2017-10-28 | 2017-10-28 | A method of improving particieboard Solution on Air Forming Equipment material mouth flash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711031639.6A CN107803914B (en) | 2017-10-28 | 2017-10-28 | A method of improving particieboard Solution on Air Forming Equipment material mouth flash |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107803914A true CN107803914A (en) | 2018-03-16 |
| CN107803914B CN107803914B (en) | 2019-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711031639.6A Active CN107803914B (en) | 2017-10-28 | 2017-10-28 | A method of improving particieboard Solution on Air Forming Equipment material mouth flash |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5171498A (en) * | 1990-03-15 | 1992-12-15 | Pyrok Technology Limited | Manufacture of bonded particle boards |
| DE4212000C2 (en) * | 1992-04-09 | 1999-05-27 | Kvaerner Panel Sys Gmbh | Device for dedusting in a top layer spreading device for a molding station |
| DE19835419A1 (en) * | 1998-08-05 | 2000-02-10 | Kvaerner Panel Sys Gmbh | Diffuser for layering prepared particles prior to bonding has several perforated screens over a sloping wall to evenly spread the particles and to prevent clogging |
| CN202029206U (en) * | 2011-03-11 | 2011-11-09 | 山东贺友集团有限公司 | Medium-density fiberboard air forming machine |
| CN203843963U (en) * | 2014-05-19 | 2014-09-24 | 云南司珈尔木业股份有限公司 | Novel fiberboard spreading machine |
| CN204549325U (en) * | 2013-12-20 | 2015-08-12 | 迪芬巴赫机械工程有限公司 | For scattering the equipment of fiber when surface patches is scattered |
| CN205380760U (en) * | 2016-01-29 | 2016-07-13 | 河南世环农作物秸秆整装设备有限公司 | Machinery air current combination spreading machine |
-
2017
- 2017-10-28 CN CN201711031639.6A patent/CN107803914B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5171498A (en) * | 1990-03-15 | 1992-12-15 | Pyrok Technology Limited | Manufacture of bonded particle boards |
| DE4212000C2 (en) * | 1992-04-09 | 1999-05-27 | Kvaerner Panel Sys Gmbh | Device for dedusting in a top layer spreading device for a molding station |
| DE19835419A1 (en) * | 1998-08-05 | 2000-02-10 | Kvaerner Panel Sys Gmbh | Diffuser for layering prepared particles prior to bonding has several perforated screens over a sloping wall to evenly spread the particles and to prevent clogging |
| CN202029206U (en) * | 2011-03-11 | 2011-11-09 | 山东贺友集团有限公司 | Medium-density fiberboard air forming machine |
| CN204549325U (en) * | 2013-12-20 | 2015-08-12 | 迪芬巴赫机械工程有限公司 | For scattering the equipment of fiber when surface patches is scattered |
| CN203843963U (en) * | 2014-05-19 | 2014-09-24 | 云南司珈尔木业股份有限公司 | Novel fiberboard spreading machine |
| CN205380760U (en) * | 2016-01-29 | 2016-07-13 | 河南世环农作物秸秆整装设备有限公司 | Machinery air current combination spreading machine |
Non-Patent Citations (1)
| Title |
|---|
| 于志明等: "《木材加工装备 人造板机械》", 30 September 2005 * |
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| CN107803914B (en) | 2019-10-11 |
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