CN204321869U - A kind of fiberboard sanding dusts recycling machine - Google Patents
A kind of fiberboard sanding dusts recycling machine Download PDFInfo
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- CN204321869U CN204321869U CN201420804160.7U CN201420804160U CN204321869U CN 204321869 U CN204321869 U CN 204321869U CN 201420804160 U CN201420804160 U CN 201420804160U CN 204321869 U CN204321869 U CN 204321869U
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- China
- Prior art keywords
- intake duct
- air intake
- main air
- sedimentation pipe
- sand grains
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Abstract
The utility model discloses a kind of fiberboard sanding dusts recycling machine, the sack cleaner that recycling machine is comprised material suction device and is connected with described material suction device by main air intake duct; It is characterized in that, the interlude of described main air intake duct is provided with one section of sedimentation pipe in ' L ' shape, and the two ends of this sedimentation pipe are communicated with described main air intake duct, wherein, the diameter of described sedimentation pipe is greater than the diameter of described main air intake duct, and is provided with grit collection groove in the lower end of described sedimentation pipe.During use, the sand grains transmitted in main air intake duct and wood dust can carry out being separated and reclaiming respectively by this recycling machine.
Description
Technical field
The utility model relates to fiberboard sanding dusts and reclaims field, particularly a kind of fiberboard sanding dusts recycling machine of automatic separation sand grains.
Background technology
Sanding surface is last one manufacturing procedure in Fibreboard Production process.According to measuring and calculating, fiberboard is after sanding, and the Dust Capacity produced accounts for the 3-4% of fibreboard product amount.China as the first in the world Fibreboard Production big country, annual sanding dusts incredible amount.About the process of fiberboard sanding dusts, Fibreboard Production enterprise of current China, for the consideration economized on resources, mostly utilizes dust collection equipment to be reclaimed by dust, then to mix in proportion with fiber as additional materials and is reused for pressboard.The recycling of sanding dusts, not only can reduce the waste of resource, reduce production cost, and sanding dusts also can play fiberfill fibers gap in fiberboard, improves the effect of fiberboard density and raising plate facing sand light quality.Therefore, fiberboard sanding dusts is recycled, has become the common recognition of Fibreboard Production enterprise.But; current each enterprise is in dust recycling process; all face a common difficult problem urgently to be resolved hurrily: Here it is in fiberboard sanding process, and the sand grains on abrasive band constantly can come off and be mixed in sanding dusts, then by entering again in fibreboard product with fibrous raw material is used in combination.When carrying out sanding process to the fiberboard containing sand grains, being contained in sand grains in fiberboard will bring two to endanger greatly to sanding operation: one is the stop of cutting sand due to sand grains, causes plate facing sand light effect coarse, the quality of product is reduced; Two is gnaw effect due to sand grains to abrasive band, causes the abnormal sand fallout in abrasive band, greatly reduces the abrasive band life-span, because abrasive band is expensive, therefore significantly add sanding cost.More seriously, the sand grains extremely come off gets back to raw material cabin by dust collection equipment again, then enters fiberboard again, is so concatenated to form vicious circle.
The information being disclosed in this background technology part is only intended to increase the understanding to general background of the present utility model, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Utility model content
The purpose of this utility model is to provide a kind of fiberboard sanding dusts recycling machine, thus overcomes the sand grains come off from abrasive band and be mixed in sanding dusts and affect Sanding Quality and reduce the shortcoming in abrasive band life-span.
For achieving the above object, the utility model provides a kind of fiberboard sanding dusts recycling machine, the sack cleaner comprising material suction device and be connected with described material suction device by main air intake duct; The interlude of described main air intake duct is provided with one section of sedimentation pipe in ' L ' shape, the two ends of this sedimentation pipe are communicated with described main air intake duct, wherein, the diameter of described sedimentation pipe is greater than the diameter of described main air intake duct, and is provided with grit collection groove in the lower end of described sedimentation pipe.
In technique scheme, the diameter of described sedimentation pipe is 1 ~ 1.58 times of described main air intake duct.
In technique scheme, above described grit collection groove, be provided with baffle plate.
In technique scheme, described material suction device is multiple, is connected with described main air intake duct respectively by inspiratory limbs.
In technique scheme, the two ends be connected with described main air intake duct at described sedimentation pipe are respectively equipped with increaser and reducing pipe.
In technique scheme, the described main air intake duct connecting described sack cleaner is also provided with centrifugal fan.
In technique scheme, the lower end of described sack cleaner is provided with discharger.
The purpose of this utility model is the recovery method providing a kind of above-mentioned fiberboard sanding dusts recycling machine, thus overcomes the sand grains come off from abrasive band and be mixed in sanding dusts and affect Sanding Quality and reduce the shortcoming in abrasive band life-span.
For achieving the above object, the utility model provides a kind of recovery method of fiberboard sanding dusts recycling machine, comprise the following steps: 1) start described centrifugal fan and make described material suction device and described sack cleaner work, thus make the air velocity in described main air intake duct higher than the floating velocity of sand grains; 2) air velocity in described ' L ' shape sedimentation pipe is set between sanding dusts floating velocity and sand suspension speed; 3) sand grains being sent to described main air intake duct from described material suction device is separated through described sedimentation pipe with sanding dusts, and described sand grains is fallen into described grit collection groove by sedimentation, and described sanding dusts continues to be sent to described sack cleaner reclaims.
Compared with prior art, the utility model has following beneficial effect:
1. the fiberboard sanding dusts recycling machine in the utility model, larger and in the sedimentation pipe of ' L ' shape than main air intake duct by arranging caliber, the speed of air-flow in sedimentation pipe is reduced, and make air velocity in sedimentation pipe higher than the floating velocity of sanding dusts lower than the floating velocity of sand grains, thus sand grains is sunken in sedimentation pipe collected by grit collection groove, sanding dusts continues to be sent to sack cleaner and reclaims, and reaches the effect that sand grains is separated with sanding dusts.
2. be provided with baffle plate in the pipe bent position of sedimentation pipe, can stop that sand grains advances, effectively fall in grit collection groove.
3. be provided with reducing pipe and increaser at the two ends of sedimentation pipe, can prevent from the two ends because of sedimentation pipe from becoming suddenly large and cause in pipe occurring air-swirl.
Accompanying drawing explanation
Fig. 1 is the structural representation according to fiberboard sanding dusts recycling machine of the present utility model.
Fig. 2 is the schematic flow sheet according to sanding dusts recovery method of the present utility model
Main Reference Numerals illustrates:
1-material suction device, 2-inspiratory limbs, the main air intake duct of 3-, 4-increaser, 5-baffle plate, 6-sedimentation pipe, 7-reducing pipe, 8-grit collection groove, 9-centrifugal fan, 10-sack cleaner, 11-discharger.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail, but is to be understood that protection domain of the present utility model not by the restriction of detailed description of the invention.
Clearly represent unless otherwise other, otherwise in whole description and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or part, and do not get rid of other element or other part.
First, first introduce sand grains and sanding dusts in the utility model embodiment and carry out being separated adopted floating velocity difference partition method in conveyance conduit, as follows:
In atmosphere, can by object holder to the air velocity V fallen in the air and not
sbe called the floating velocity of this object.By physics Xue Zhi: the aerial floating velocity of particulate matter can be determined by following formula:
In formula: V
sthe floating velocity (m/s) of-particulate matter
D
sthe diameter (m) of-particulate matter
γ
ssevere (the kg/m of-particulate matter
3)
γ
asevere (the kg/m of-air
3)
From above formula: in the air stream, the floating velocity V of particulate matter
swith the diameter d of particle
swith severe γ
srelevant.The i.e. particle of same diameter, the large person of severe, floating velocity is large, and severe little person floating velocity is little.The particle of identical severe, the large person's floating velocity of diameter is large, and diameter little person floating velocity is little.
Object involved by the utility model embodiment is be in sanding dusts in air stream and sand grains.Sanding dusts is wood dust, all states with wood dust in following discussion, and obviously generally, diameter and the severe of sand grains are all greater than wood dust, i.e. d
s sand grains> d
s wood dust, γ
s sand grains> γ
s wood dust.Therefore, the floating velocity perseverance of sand grains is greater than the floating velocity of wood dust, i.e. V
s sand grains> V
s wood dust.At present, the material of abrasive band sand grains is mainly white fused alumina, Brown Alundum or carborundum.Through measuring and calculating, the floating velocity of sand grains is about 2.5 times of wood dust, i.e. V
s sand grains=2.5V
s wood dust.
The utility model embodiment is exactly utilize the characteristic that there is floating velocity difference between sand grains and wood dust, by undergoing technological transformation to former main air intake duct, ensureing under the prerequisite that flow and flow velocity are constant in former main air intake duct, the terminal only allowing wood dust can arrive former main air intake duct enters dust cabin, makes sand grains not reach home and is detained in former main air intake duct way and is separated outside former main air intake duct.Concrete former main air intake duct technical reformation method is as follows:
In former main air intake duct, install " L " shape sedimentation pipe that one section of diameter is greater than former pipeline additional, air-flow is decelerated through this segment pipe.Why " L " shape sedimentation pipe can make flow slowing down, mainly based on the principle that air in pipeline flow is constant: set the flow of air in former main air-breathing process pipe as Q
1=A
1v
1(A
1for pipeline section amasss, V
1for gas flow rate), the air mass flow in " L " shape sedimentation pipe installed additional is Q
2=A
2v
2, because in pipeline, flow is constant, then have Q
2=Q
1, i.e. A
2v
2=A
1v
1.Again because technological transformation designs seasonal A
2> A
1so V
2< V
1.For making the air velocity V in " L " shape sedimentation pipe
2centrifugation can be played to sand grains and wood dust, can first according to the floating velocity V calculating sand grains and wood dust in formula (1) respectively
s sand grainsand V
s wood dust, then by the ducted air velocity V of " L " shape sedimentation
2be set to
V
s wood dust< V
2< V
s sand grains(2)
Due to V
2< V
s sand grains, so in " L " shape sedimentation pipe, sand grains can not by air-flow V
2suspension is taken away and is settled down and falls into grit collection groove.And due to V
2> V
s wood dust, so wood dust can by air-flow V
2suspend and take " L " shape sedimentation pipe out of, finally entering dust cabin.So far, being separated of sand grains and wood dust is namely completed.
As shown in Figure 1, according to a kind of fiberboard sanding dusts recycling machine of the utility model detailed description of the invention, comprise material suction device 1, main air intake duct 3, sedimentation pipe 6, grit collection groove 8, centrifugal fan 9, discharger 11 and sack cleaner 10, material suction device 1 is multiple, be connected with main air intake duct 3 respectively by inspiratory limbs 2, and main air intake duct 3 is connected with sack cleaner 10, at the interlude of main air intake duct 3, one section of sedimentation pipe 6 in ' L ' shape is set, the diameter of sedimentation pipe 6 is greater than the diameter of main air intake duct 3, the two ends of this sedimentation pipe 6 are communicated with main air intake duct 3, the two ends be connected with main air intake duct 3 at sedimentation pipe 6 are respectively equipped with increaser 4 and reducing pipe 7, can prevent from the two ends because of sedimentation pipe 6 from becoming suddenly large and cause in pipe occurring air-swirl, enter the air-flow of material suction device 1 first through one section of main air intake duct 3, again through sedimentation pipe 6, finally be connected to sack cleaner 10 by one section of main air intake duct 3 again, and this section of main air intake duct 3 is also provided with centrifugal fan 9.Grit collection groove 8 is located at the lower end of sedimentation pipe to be collected in the sand grains separated in sedimentation pipe 6, baffle plate 5 is provided with above grit collection groove 8, the inertia that sand grains advances can be cushioned, effectively fall in grit collection groove 8, the lower end that sack cleaner 10 is located at by discharger 11 is separated the wood dust after sand grains with removal, wherein, in actual use, the air velocity in main air intake duct 3 must be made to exceed the floating velocity V of sand grains
s sand grains, can run in horizontal feed pipeline, according to above-mentioned reasoning, because of V to make sand grains
s sand grains=2.5V
s wood dustfor ensureing that sand grains is separated in sedimentation pipe 6, the one as the present embodiment is preferred, and the diameter that must arrange sedimentation pipe 6 is 1 ~ 1.58 times of main air intake duct 3, the air velocity in sedimentation pipe 6 is made to be greater than the floating velocity of wood dust all the time, and lower than the floating velocity of sand grains.
The diameter of " L " shape sedimentation pipe in the present embodiment arranges and is drawn by following reasoning:
If the technique diameter of main air intake duct is D
1, process gas flow speed is V
1; The intended diameter of " L " shape sedimentation pipe is D
2, design air velocity is V
2, then according to A
2v
2=A
1v
1obtain the intended diameter D of " L " shape sedimentation pipe
2for
If make V
1=V
s sand grains, V
2=V
s wood dust, V again
s sand grains=2.5V
s wood dust, then the design maximum diameter D of " L " shape sedimentation pipe
2minfor
When the diameter of sedimentation pipe 5 is 1.58 times of main air intake duct 3, the air velocity in sedimentation pipe 5 is V
2=V
s wood dust, in actual use, the air velocity generally arranging main air intake duct 3 is greater than the floating velocity of sand grains, so wood dust and sand grains all can run and enter sedimentation pipe 5, because the air velocity in sedimentation pipe 5 is V in the main air intake duct 3 of level
2=V
s wood dust< V
s sand grainsso sand grains can not continue to run in sedimentation pipe 5, and wood dust still can resume defeated at sedimentation pipe 5 relaying, therefore, the diameter of sedimentation pipe 5 is set to 1 ~ 1.58 times of main air intake duct 3 diameter, can ensures that wood dust and sand grains can realize being separated in sedimentation pipe 5.
Using method below in conjunction with this fiberboard sanding dusts recycling machine is further elaborated, and as shown in Figure 2, comprises the following steps:
Step S100: start centrifugal fan 9 and material suction device 1 and sack cleaner 10 are worked, thus make the air velocity in winner's air intake duct 3 (sand grains and wood dust can be run in horizontal feed pipeline higher than the floating velocity of sand grains, in this embodiment, as preferably, the floating velocity of air velocity a little more than sand grains is set);
Step S102: the air velocity arranged in " L " shape sedimentation pipe 6 (namely arranges the diameter of L shape sedimentation pipe) between sanding dusts floating velocity and sand suspension speed;
Step S104: be sent to the sand grains of main air intake duct 3 and wood dust through the bending section of sedimentation pipe 6 and the stop being subject to baffle plate from material suction device 1, motional inertia is weakened, meanwhile, air velocity V in sedimentation pipe 6
2< V
s sand grains, so sand grains can not continue to be carried motion by pneumatic floating at the perpendicular deceleration tube position of sedimentation pipe 6, and to be fallen in grit collection groove 8 and outside discharge line, and when wood dust enters after in sedimentation pipe 6, due to wherein air velocity V
2> V
s wood dust, therefore wood dust still can by air-flow V
2suspend and taken out of sedimentation pipe 6 and reenter main air intake duct 3, then enter sack cleaner 10 through centrifugal fan 9, finally enter wood dust feed bin through discharger 11.So far complete sand grains and obtain pure wood dust with being separated of wood dust.
The aforementioned description to concrete exemplary of the present utility model is to illustrate and the object of illustration.These descriptions not want the utility model to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present utility model and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present utility model and various different selection and change.Scope of the present utility model is intended to limited by claims and equivalents thereof.
Claims (7)
1. a fiberboard sanding dusts recycling machine, the sack cleaner comprising material suction device and be connected with described material suction device by main air intake duct; It is characterized in that, the interlude of described main air intake duct is provided with one section of sedimentation pipe in ' L ' shape, and the two ends of this sedimentation pipe are communicated with described main air intake duct, wherein, the diameter of described sedimentation pipe is greater than the diameter of described main air intake duct, and is provided with grit collection groove in the lower end of described sedimentation pipe.
2. fiberboard sanding dusts recycling machine according to claim 1, is characterized in that, the diameter of described sedimentation pipe is 1 ~ 1.58 times of described main air intake duct.
3. fiberboard sanding dusts recycling machine according to claim 1, is characterized in that, above described grit collection groove, be provided with baffle plate.
4. fiberboard sanding dusts recycling machine according to claim 1, is characterized in that, described material suction device is multiple, is connected with described main air intake duct respectively by inspiratory limbs.
5. fiberboard sanding dusts recycling machine according to claim 1, is characterized in that, the two ends be connected with described main air intake duct at described sedimentation pipe are respectively equipped with increaser and reducing pipe.
6. fiberboard sanding dusts recycling machine according to claim 1, is characterized in that, the described main air intake duct connecting described sack cleaner is also provided with centrifugal fan.
7. fiberboard sanding dusts recycling machine according to claim 1, it is characterized in that, the lower end of described sack cleaner is provided with discharger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420804160.7U CN204321869U (en) | 2014-12-19 | 2014-12-19 | A kind of fiberboard sanding dusts recycling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420804160.7U CN204321869U (en) | 2014-12-19 | 2014-12-19 | A kind of fiberboard sanding dusts recycling machine |
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| Publication Number | Publication Date |
|---|---|
| CN204321869U true CN204321869U (en) | 2015-05-13 |
Family
ID=53158272
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420804160.7U Expired - Fee Related CN204321869U (en) | 2014-12-19 | 2014-12-19 | A kind of fiberboard sanding dusts recycling machine |
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| Country | Link |
|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552006A (en) * | 2014-12-19 | 2015-04-29 | 广西大学 | Fiberboard sanding dust recovery machine and recovery method |
-
2014
- 2014-12-19 CN CN201420804160.7U patent/CN204321869U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552006A (en) * | 2014-12-19 | 2015-04-29 | 广西大学 | Fiberboard sanding dust recovery machine and recovery method |
| CN104552006B (en) * | 2014-12-19 | 2017-11-17 | 广西大学 | A kind of fiberboard sanding dusts recycling machine and recovery method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20151219 |
|
| EXPY | Termination of patent right or utility model |