CN204546298U - A kind of fiberboard sanding dusts recycling machine of automatic separation sand grains - Google Patents
A kind of fiberboard sanding dusts recycling machine of automatic separation sand grains Download PDFInfo
- Publication number
- CN204546298U CN204546298U CN201420804184.2U CN201420804184U CN204546298U CN 204546298 U CN204546298 U CN 204546298U CN 201420804184 U CN201420804184 U CN 201420804184U CN 204546298 U CN204546298 U CN 204546298U
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- Prior art keywords
- pipe
- sand grains
- dust
- carrier pipe
- sanding dusts
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Abstract
The utility model discloses a kind of fiberboard sanding dusts recycling machine of automatic separation sand grains, comprising: multiple cleaner head; Sack cleaner, its import is connected with multiple cleaner head by main air intake duct; Dedusting fan, it is located at the end of main air intake duct; Cyclone separator, its air inlet is connected with the discharging opening of sack cleaner by dust carrier pipe; Feeding fan, it is located at the top on dust carrier pipe; And dust cabin, for receiving the sanding dusts reclaimed from cyclone separator; Arrange one section of sedimentation pipe in ' L ' shape at the interlude of dust carrier pipe, the two ends of this sedimentation pipe are communicated with dust carrier pipe, and wherein, the diameter of sedimentation pipe is greater than the diameter of dust carrier pipe, and is provided with grit collection groove in the lower end of sedimentation pipe.The sand grains that abrasive band comes off can be separated by the utility model effectively from sanding dusts, overcomes because sand grains is mixed in sanding dusts the shortcoming affecting fiberboard Sanding Quality and reduce the abrasive band life-span.
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 the fiberboard sanding dusts recycling machine providing a kind of automatic separation sand grains, 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 of automatic separation sand grains, comprising: multiple cleaner head; Sack cleaner, its import is connected with described multiple cleaner head by main air intake duct; Dedusting fan, it is located at the end of described main air intake duct, for providing transmitting power for described main air intake duct; Cyclone separator, its import is connected with the discharging opening of described sack cleaner by dust carrier pipe; Feeding fan, it is located at the top of described dust carrier pipe, for providing transmitting power for described dust carrier pipe; And dust cabin, for receiving the sanding dusts reclaimed from cyclone separator; At the interlude of described dust carrier pipe, one section of sedimentation pipe in ' L ' shape is set, the two ends of this sedimentation pipe are communicated with described dust carrier pipe, wherein, the diameter of described sedimentation pipe is greater than the diameter of described dust carrier pipe, 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 dust carrier pipe.
In technique scheme, above described grit collection groove, be provided with baffle plate.
In technique scheme, also comprise bypass line, one end of described bypass pipe is connected between the discharging opening of described feeding fan and described sack cleaner, and the other end is connected between described sedimentation pipe and described cyclone separator.
In technique scheme, described bypass pipe is provided with air door adjusting valve.
In technique scheme, described multiple cleaner head is connected with described main air intake duct respectively by an air intake duct.
In technique scheme, the two ends be connected with described dust carrier pipe at described sedimentation pipe are respectively equipped with increaser and reducing pipe.
In technique scheme, be provided with blanking rotary valve in the discharge outlet of described sack cleaner.
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 dedusting fan and described feeding fan, make the air velocity in described main air intake duct and described dust carrier pipe higher than the floating velocity of sand grains; 2) sand grains sucked from described cleaner head and sanding dusts are admitted to described sack cleaner after described main air intake duct; 3) sand grains in described sack cleaner and sanding dusts enter into described dust carrier pipe, when arriving the sedimentation pipe of described ' L ' shape, air velocity in described sedimentation pipe is set between sanding dusts floating velocity and sand suspension speed, sand grains is separated in described sedimentation pipe with sanding dusts, sand grains is fallen into described grit collection groove by sedimentation, and described sanding dusts continues to transmit; 4) last sanding dusts enters dust cabin and reclaims after described cyclone separator.
In technique scheme, also comprise bypass line, one end of described bypass pipe is connected between the discharging opening of described feeding fan and described sack cleaner, and the other end is connected between described sedimentation pipe and described cyclone separator, and described bypass pipe is provided with air door adjusting valve; By regulating the described air door adjusting valve on described bypass pipe, air velocity in described sedimentation pipe is set between sanding dusts floating velocity and sand suspension speed.
Compared with prior art, the utility model has following beneficial effect:
1. the fiberboard sanding dusts recycling machine in the utility model, by arranging the caliber sedimentation pipe large and more L-shaped than powder transfer pipelines, 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 and is collected by grit collection groove, sanding dusts then continues to be sent to dust cabin 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 and weakens its motional inertia, sand grains is effectively fallen 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.
4. adopt the bypass pipe speed adjusting technique of band adjustable ventilation door, make the wind speed in " L " shape sedimentation pipe adjustable, to obtain best sand grains separating effect.
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-cleaner head, 2-props up air intake duct, the main air intake duct of 3-, 4-sack cleaner, 5-sedimentation pipe, 6-dedusting fan, 7-blanking rotary valve, 8-bypass pipe, 9-air door adjusting valve, 10-feeding fan, 11-dust carrier pipe, 12-increaser, the horizontal deceleration tube of 13-, 14-grit collection groove, 15-baffle plate, 16-deceleration bend pipe, 17-erects deceleration tube, 18-reducing pipe, 19-cyclone separator, 20-dust cabin.
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 dust carrier pipe, ensureing under the prerequisite that flow and flow velocity are constant in former dust carrier pipe, the terminal only allowing wood dust can arrive former dust carrier pipe enters dust cabin, makes sand grains not reach home and is detained in former dust carrier pipe way and is separated outside former main dust carrier pipe.Concrete former main dust carrier pipe technical reformation method is as follows:
In former dust carrier pipe, 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 the fiberboard sanding dusts recycling machine of a kind of automatic separation sand grains of the utility model detailed description of the invention, comprising: multiple cleaner head 1, sack cleaner 4, dedusting fan 6, cyclone separator 19, feeding fan 10, dust cabin 20 and bypass pipe 8, the import of sack cleaner 4 is connected with multiple cleaner head 1 by main air intake duct 3, and in this embodiment, multiple cleaner head 1 is connected with main air intake duct 3 respectively by an air intake duct 2, dedusting fan 6 is located at the end of main air intake duct 3, for providing transmitting power for main air intake duct 3, the air inlet of cyclone separator 19 is connected with the discharging opening of sack cleaner 4 by dust carrier pipe 11, and the discharge outlet of sack cleaner 4 is provided with blanking rotary valve 7, feeding fan 10 is located at the top of dust carrier pipe 11, for providing transmitting power for dust carrier pipe 11, dust cabin 20 is for receiving the sanding dusts reclaimed from cyclone separator 19, at the interlude of dust carrier pipe 11, one section of L-shaped sedimentation pipe 5 is set, the two ends of this sedimentation pipe 5 are communicated with dust carrier pipe 11, and be respectively equipped with increaser 12 and reducing pipe 18 at the two ends that sedimentation pipe 5 is connected with dust carrier pipe 11, can prevent from the two ends because of sedimentation pipe 5 from becoming suddenly large and cause in pipe occurring air-swirl, wherein, the diameter of sedimentation pipe 5 is greater than the diameter of dust carrier pipe 11, first the air-flow entering cleaner head 1 enters sack cleaner 4 through main air intake duct 3, cyclone separator 19 is sent to again by dust carrier pipe 11, being separated of sand grains and wood dust is carried out in " L " sedimentation pipe 5 of dust carrier pipe 11, last wood dust enters dust cabin 20 and collects, be provided with grit collection groove 14 in the lower end of sedimentation pipe 5, above grit collection groove 14, be provided with baffle plate 15, the inertia that sand grains advances can be cushioned, effectively fall in grit collection groove 14.Wherein, in actual use, the air velocity in dust carrier pipe 11 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 powder dirtfor ensureing that sand grains is separated in sedimentation pipe 5, the one as the present embodiment is preferred, and the diameter that must arrange sedimentation pipe 5 is 1 ~ 1.58 times of dust carrier pipe 11, the air velocity in sedimentation pipe 5 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 two ends of bypass pipe 8 are communicated with the two ends of dust carrier pipe 11, one end of bypass pipe 8 is connected between the discharging opening of feeding fan 10 and sack cleaner 4, the other end of bypass pipe 8 is connected between reducing pipe 18 and cyclone separator 19, bypass pipe 8 is provided with air door adjusting valve 9, adopt bypass pipe 8 speed adjusting technique of band adjustable ventilation door, make the wind speed in " L " shape sedimentation pipe 5 adjustable, to obtain best sand grains separating effect.
The diameter of " L " shape sedimentation pipe in the present embodiment arranges and is drawn by following reasoning:
If the technique diameter of dust carrier pipe 11 is D
1, process gas flow speed is V
1; The intended diameter of " L " shape sedimentation pipe 5 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 5
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 5
2maxfor
When the diameter of sedimentation pipe 5 is 1.58 times of dust carrier pipe 11, the air velocity in sedimentation pipe 5 is V
2=V
s wood dust, in actual use, the air velocity generally arranging dust carrier pipe 11 is greater than the floating velocity of sand grains, so wood dust and sand grains all can run and enter sedimentation pipe 5 in level dusty carrier pipe 11, because the air velocity in sedimentation pipe 5 is V
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 dust internal diameter of delivery hose, 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 dedusting fan 6 and feeding fan 10 and blanking rotary valve 7, make the air velocity in winner's air intake duct 3 and dust carrier pipe 11 higher than the floating velocity of sand grains; (sand grains and wood dust can be run in main air intake duct 3 and dust carrier pipe 11, in this embodiment, as preferably, the floating velocity of air velocity a little more than sand grains are set);
Step S102: regulate the air door adjusting valve on bypass pipe, arranges air velocity in sedimentation pipe 5 between sanding dusts floating velocity and sand suspension speed;
Step S104: the sand grains sucked from cleaner head 1 and sanding dusts are admitted to sack cleaner 4 after main air intake duct 3;
Step S106: make the sand grains in sack cleaner 4 and sanding dusts enter into dust carrier pipe 11 by blanking rotary valve 7, when arriving " L " shape sedimentation pipe 5, because the air velocity in sedimentation pipe 5 is between sanding dusts floating velocity and sand suspension speed, sand grains is separated in sedimentation pipe 5 with sanding dusts, sand grains is fallen into grit collection groove 14 by sedimentation, and sanding dusts continues to transmit;
More specifically, the dust that sack cleaner 4 reclaims sends into dust carrier pipe 11 through blanking rotary valve 7 again, then " L " shape sedimentation pipe 5 is entered through increaser 12, after sand grains enters " L " shape sedimentation pipe 5, first tentatively slowed down in horizontal deceleration tube 13, be subject to the stop collision of baffle plate 15 and deceleration bend pipe 16 tube wall after arriving deceleration bend pipe 16 again, weaken the motional inertia of sand grains further, enter perpendicular deceleration tube 17 afterwards.Due to air velocity V in " L " shape sedimentation pipe 5
2< V
s sand grains, so the sand grains after slowing down repeatedly can not continue to be carried by pneumatic floating to move ahead in perpendicular deceleration tube 17, and to be fallen in grit collection groove 14 and outside discharge line.And when wood dust enters after in " L " shape sedimentation pipe 5, due to wherein air velocity V
2> V
s wood dust, therefore wood dust still can by air-flow V
2suspend and be carried up, reenter dust carrier pipe and regain process speed V after reducing pipe 18 raises speed
1.
In this step, by the air door adjusting valve 9 of bypass pipe 8 to the air velocity V in " L " shape sedimentation pipe 5
2regulate, to obtain best sand grains separating effect.
Step S108: last sanding dusts enters dust cabin 20 and reclaims after cyclone separator 19.
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 (8)
1. be automatically separated a fiberboard sanding dusts recycling machine for sand grains, comprise:
Multiple cleaner head;
Sack cleaner, its import is connected with described multiple cleaner head by main air intake duct;
Dedusting fan, it is located at the end of described main air intake duct, for providing transmitting power for described main air intake duct;
Cyclone separator, its air inlet is connected with the discharging opening of described sack cleaner by dust carrier pipe;
Feeding fan, it is located at the top of described dust carrier pipe, for providing transmitting power for described dust carrier pipe; And
Dust cabin, for receiving the sanding dusts reclaimed from cyclone separator;
It is characterized in that:
At the interlude of described dust carrier pipe, one section of sedimentation pipe in ' L ' shape is set, the two ends of this sedimentation pipe are communicated with described dust carrier pipe, wherein, the diameter of described sedimentation pipe is greater than the diameter of described dust carrier pipe, and is provided with grit collection groove in the lower end of described sedimentation pipe.
2. the fiberboard sanding dusts recycling machine of automatic separation sand grains according to claim 1, is characterized in that, the diameter of described sedimentation pipe is 1 ~ 1.58 times of described dust carrier pipe.
3. the fiberboard sanding dusts recycling machine of automatic separation sand grains according to claim 1, is characterized in that, above described grit collection groove, be provided with baffle plate.
4. the fiberboard sanding dusts recycling machine of automatic separation sand grains according to claim 1, it is characterized in that, also comprise bypass line, one end of described bypass pipe is connected between the discharging opening of described feeding fan and described sack cleaner, and the other end is connected between described sedimentation pipe and described cyclone separator.
5. the fiberboard sanding dusts recycling machine of automatic separation sand grains according to claim 4, is characterized in that, described bypass pipe is provided with air door adjusting valve.
6. the fiberboard sanding dusts recycling machine of automatic separation sand grains according to claim 1, is characterized in that, described multiple cleaner head is connected with described main air intake duct respectively by an air intake duct.
7. the fiberboard sanding dusts recycling machine of automatic separation sand grains according to claim 1, is characterized in that, the two ends be connected with described dust carrier pipe at described sedimentation pipe are respectively equipped with increaser and reducing pipe.
8. the fiberboard sanding dusts recycling machine of automatic separation sand grains according to claim 1, is characterized in that, be provided with blanking rotary valve in the discharge outlet of described sack cleaner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420804184.2U CN204546298U (en) | 2014-12-19 | 2014-12-19 | A kind of fiberboard sanding dusts recycling machine of automatic separation sand grains |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420804184.2U CN204546298U (en) | 2014-12-19 | 2014-12-19 | A kind of fiberboard sanding dusts recycling machine of automatic separation sand grains |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204546298U true CN204546298U (en) | 2015-08-12 |
Family
ID=53821462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420804184.2U Expired - Fee Related CN204546298U (en) | 2014-12-19 | 2014-12-19 | A kind of fiberboard sanding dusts recycling machine of automatic separation sand grains |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204546298U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552004A (en) * | 2014-12-19 | 2015-04-29 | 广西大学 | Fiberboard sanding dust recycling machine capable of automatically separating sand grains and recycling method |
-
2014
- 2014-12-19 CN CN201420804184.2U patent/CN204546298U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552004A (en) * | 2014-12-19 | 2015-04-29 | 广西大学 | Fiberboard sanding dust recycling machine capable of automatically separating sand grains and recycling method |
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|---|---|---|---|
| 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: 20150812 Termination date: 20151219 |
|
| EXPY | Termination of patent right or utility model |