CN104552004B - Fiberboard sanding dust recycling machine capable of automatically separating sand grains and recycling method - Google Patents
Fiberboard sanding dust recycling machine capable of automatically separating sand grains and recycling method Download PDFInfo
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- CN104552004B CN104552004B CN201410794585.9A CN201410794585A CN104552004B CN 104552004 B CN104552004 B CN 104552004B CN 201410794585 A CN201410794585 A CN 201410794585A CN 104552004 B CN104552004 B CN 104552004B
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- dust
- pipe
- sanding
- sand grains
- sedimentation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
- B24B55/08—Dust extraction equipment on grinding or polishing machines specially designed for belt grinding machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/12—Devices for exhausting mist of oil or coolant; Devices for collecting or recovering materials resulting from grinding or polishing, e.g. of precious metals, precious stones, diamonds or the like
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cyclones (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a fiberboard sanding dust recycling machine capable of automatically separating sand grains. The fiberboard sanding dust recycling machine comprises multiple dust collection heads, a bag type dust collector, a dust collection fan, a cyclone separator, a feeding fan and a dust cabin, wherein an inlet of the bag type dust collector is connected with the multiple dust collection heads through air suction pipes; the dust collection fan is arranged at the tail end of main air suction pipes; an air inlet of the cyclone separator is connected with a material outlet of the bag type dust collector through a dust conveying pipe; the feeding fan is arranged at the starting end of the dust conveying pipe; the dust cabin is used for receiving sanding dust recycled from the cyclone separator; a section of L-shaped settling pipe is arranged at the middle section of the dust conveying pipe, two ends of the settling pipe are communicated with the dust conveying pipe, the diameter of the settling pipe is greater than the diameter of the dust conveying pipe, and a sand grain collecting groove is formed in the lower end of the settling pipe. According to the fiberboard sanding dust recycling machine disclosed by the invention, sand grains falling from a sanding belt can be effectively separated from the sanding dust, and the disadvantages that the sanding quality of a fiberboard is influence and the service life of the sanding belt is shortened because the sand grains are mixed in the sanding dust can be overcome.
Description
Technical field
The present invention relates to fibre board sanding dusts reclaim field, particularly to a kind of fibre board sanding being automatically separated sand grains
Dust recycling machine and recovery method.
Background technology
Sanding surface, is last one manufacturing procedure during Fibreboard Production.According to measuring and calculating, fibre board after sanding,
Produced Dust Capacity accounts for the 3-4% of fibreboard product amount.China as the first in the world Fibreboard Production big country, annual sand
Light dust incredible amount.With regard to the process of fibre board sanding dusts, Fibreboard Production enterprise of current China is for economizing on resources
Consider, mostly using dust collection equipment, dust is reclaimed, be then mixed in proportion as additional materials and fiber and be reused for suppressing
Fibre board.The recycling of sanding dusts, not only can reduce the waste of resource, reduce production cost, and sanding dusts are in fibre
Fiberfill fibers gap is may also function as, the effect improving fibre board density and improving plate face Sanding Quality in dimension plate.Therefore, by fiber
Plate sanding powder dirt recycles, it has also become the common recognition of Fibreboard Production enterprise.However, each enterprise recycled in dust at present
Cheng Zhong, all suffers from a common difficult problem urgently to be resolved hurrily: here it is during fibre board sanding, the sand grains on abrasive band can not
Break and come off and be mixed in sanding dusts, then entered in fibreboard product by being used in mixed way with fibrous raw material.When to containing
The fibre board of sand grains carry out sanding process when, the sand grains being contained in fibre board sanding operation will be brought two greatly endanger: one be by
Stop sand cut in sand grains, causes plate face sanding effect coarse, so that the quality of product is reduced；Two is because sand grains is to abrasive band
Gnaw effect, cause abrasive band exception sand fallout, substantially reduce the abrasive band life-span, because abrasive band is expensive, be therefore added significantly to sand
Light cost.More seriously, the sand grains extremely coming off returns to raw material cabin further through dust collection equipment, then enters fibre board, such as again
This is concatenated to form vicious cycle.
The information being disclosed in this background section is merely intended to increase the understanding of the general background to the present invention, and should not
Recognize when being considered or imply in any form that this information structure has been the prior art well known to persons skilled in the art.
Content of the invention
It is an object of the invention to provide a kind of fibre board sanding dusts recycling machine being automatically separated sand grains, thus overcome from
The sand grains coming off on abrasive band is mixed into impact Sanding Quality and the shortcoming reducing the abrasive band life-span in sanding dusts.
For achieving the above object, the invention provides a kind of fibre board sanding dusts recycling machine being automatically separated sand grains, wrap
Include: multiple cleaner head；Sack cleaner, its import is connected with the plurality of cleaner head by main suction nozzle；Dedusting fan, it sets
In the end of described main suction nozzle, for providing conveying power for described main suction nozzle；Cyclone separator, dust is passed through in its import
Delivery pipe is connected with the discharging opening of described sack cleaner；Feeding fan, its located at the top of described dust delivery pipe, for for
Described dust delivery pipe provides conveying power；And dust cabin, for receiving the sanding dusts reclaiming from cyclone separator；Institute
The interlude stating dust delivery pipe arranges one section of sedimentation pipe in ' l ' shape, and the two ends of this sedimentation pipe are with described dust delivery pipe even
Logical, wherein, the diameter with diameter greater than described dust delivery pipe of described sedimentation pipe, and it is provided with sand grains in the lower end of described sedimentation pipe
Collecting tank.
In technique scheme, the diameter of described sedimentation pipe is more than 1 times of described dust delivery pipe and less than described
1.58 times of dust delivery pipe.
In technique scheme, above described grit collection groove, it is provided with baffle plate.
In technique scheme, also include bypass line, one end of described bypass pipe is connected to described feeding fan and institute
State between the discharging opening of sack cleaner, 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, the plurality of cleaner head is connected with described main suction nozzle by a suction nozzle respectively.
In technique scheme, described sedimentation pipe be connected with described dust delivery pipe be respectively arranged at two ends with increaser and
Reducing pipe.
In technique scheme, it is provided with blanking rotary valve in the discharge outlet of described sack cleaner.
It is an object of the invention to provide a kind of recovery method of above-mentioned fibre board sanding dusts recycling machine, thus overcome from
The sand grains coming off on abrasive band is mixed into impact Sanding Quality and the shortcoming reducing the abrasive band life-span in sanding dusts.
For achieving the above object, the invention provides a kind of recovery method of fibre board sanding dusts recycling machine, including with
Lower step: 1) start described dedusting fan and described feeding fan so that in described main suction nozzle and described dust delivery pipe
Air velocity is higher than the floating velocity of sand grains；2) from described cleaner head suck sand grains and sanding dusts through described main suction nozzle
After be admitted to described sack cleaner；3) sand grains in described sack cleaner and sanding dusts enter into described dust conveying
Pipe, during the sedimentation pipe of described ' l ' shape of arrival, the air velocity in the described sedimentation pipe of setting is in sanding dusts floating velocity and sand grains
So that sand grains and sanding dusts carry out separating in described sedimentation pipe between floating velocity, sand grains is fallen into described sand grains by sedimentation
Collecting tank, and described sanding dusts continue transmission；4) last sanding dusts enter dust cabin after described cyclone separator and enter
Row reclaims.
In technique scheme, also include bypass line, one end of described bypass pipe is connected to described feeding fan and institute
State between the discharging opening of sack cleaner, the other end is connected between described sedimentation pipe and described cyclone separator, on described side
Siphunculus is provided with air door adjusting valve；By adjusting the described air door adjusting valve on described bypass pipe, arrange in described sedimentation pipe
Air velocity is between sanding dusts floating velocity and sand suspension speed.
Compared with prior art, the invention has the following beneficial effects:
1. the fibre board sanding dusts recycling machine in the present invention and recovery method, by arranging caliber than dust delivery pipe
Road is big and sedimentation pipe in " l " shape, so that speed in sedimentation pipe for the air-flow is reduced, and makes the air velocity in sedimentation pipe be higher than sand
The floating velocity of light dust and be less than the floating velocity of sand grains, so that sand grains is sunken in sedimentation pipe and is entered by grit collection groove
Row is collected, and sanding dusts then continue to be sent to dust cabin and reclaimed, and reach and make sand grains and the detached effect of sanding dusts.
2. the pipe bent position in sedimentation pipe is provided with baffle plate, can stop that sand grains advances and weakens its motional inertia, make sand grains
Effectively fall in grit collection groove.
3. the two ends in sedimentation pipe are provided with reducing pipe and increaser, are prevented from because the change suddenly of the two ends of sedimentation pipe is big
Cause and air-swirl occurs in pipe.
4., using the bypass pipe speed adjusting technique with adjustable ventilation door, make the wind speed in " l " shape sedimentation pipe adjustable, optimal to obtain
Sand grains separating effect.
Brief description
Fig. 1 is the structural representation of the fibre board sanding dusts recycling machine according to the present invention.
Fig. 2 is the schematic flow sheet of the sanding dusts recovery method according to the present invention.
Main Reference Numerals illustrate:
1- cleaner head, 2- props up suction nozzle, the main suction nozzle of 3-, 4- sack cleaner, 5- sedimentation pipe, and 6- dedusting fan, under 7-
Material rotary valve, 8- bypass pipe, 9- air door adjusting valve, 10- feeding fan, 11- dust delivery pipe, 12- increaser, 13- level is slowed down
Pipe, 14- grit collection groove, 15- baffle plate, 16- deceleration bend pipe, 17- erects deceleration tube, 18- reducing pipe, 19- cyclone separator, 20-
Dust cabin.
Specific embodiment
Below in conjunction with the accompanying drawings, the specific embodiment of the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield scope is not limited by specific embodiment.
Explicitly indicate that unless otherwise other, otherwise in entire disclosure and claims, term " inclusion " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or ingredient, and do not exclude other units
Part or other ingredient.
First, first introduce embodiment of the present invention sand grains and sanding dusts and carry out separating adopted outstanding in conveyance conduit
Floating speed difference partition method is as follows:
In atmosphere, can be by object support to air velocity v not fallensIt is referred to as 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: vsThe floating velocity (m/s) of particulate matter
dsThe diameter (m) of particulate matter
γsThe severe (/m of particulate matter3)
γaThe severe (/m of air3)
From above formula: in the air stream, the floating velocity v of particulate mattersDiameter d with granulesWith severe γsRelevant.
The i.e. granule of same diameter, the big person of severe, floating velocity is big, and severe little person floating velocity is little.The granule of identical severe, diameter is big
Person's floating velocity is big, and diameter little person floating velocity is little.
Object involved by the embodiment of the present invention is the sanding dusts and sand grains being in air stream.Sanding dusts are wood powder
Dirt, is all stated with wood dust it is clear that generally, the diameter of sand grains and severe are all higher than wood powder in following discussion
Dirt, i.e. dS sand grains＞ dS wood dust、γS sand grains＞ γS wood dust.Therefore, the permanent floating velocity more than wood dust of the floating velocity of sand grains, i.e. vS sand grains
＞ vS 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
It is about 2.5 times of wood dust, i.e. vS sand grains=2.5vS wood dust.
The embodiment of the present invention is exactly using the characteristic that there is floating velocity difference between sand grains and wood dust, by defeated to former dust
Send pipe to undergo technological transformation, ensure former dust delivery pipe in flow and flow velocity constant on the premise of, only allow wood dust can reach
The terminal of former dust delivery pipe enters dust cabin, makes sand grains can not reach home and is detained in former dust delivery pipe way and is divided
Separate out outside former main dust delivery pipe.Specifically former main dust delivery pipe technical reformation method is as follows:
Install one section of " l " shape sedimentation pipe with diameter greater than former pipeline additional in former dust delivery pipe, make air-flow pass through this section of pipe
It is decelerated during road.Why " l " shape sedimentation pipe can make flow slowing down, be mainly based upon the constant principle of air in pipeline flow:
If the flow of air is q in former main air-breathing process pipe1=a1v1(a1Amass for pipeline section, v1For gas flow rate), " l " installing additional
Air mass flow in shape sedimentation pipe is q2=a2v2, because flow is constant in pipeline, then have q2=q1, i.e. a2v2=a1v1.And due to
The seasonal a of technological transformation design2＞ a1So v2V1.For making air velocity v in " l " shape sedimentation pipe2Sand grains and wood dust can be played point
From effect, can be first according to the floating velocity v calculating sand grains and wood dust in formula (1) respectivelyS sand grainsAnd vS wood dust, then by " l "
Shape settles air velocity v in pipeline2It is set to
vS wood dustV2VS sand grains(2)
Due to v2VS sand grains, so in " l " shape sedimentation pipe, sand grains can not be by air-flow v2Suspension is taken away and is settled down
Enter in grit collection groove.And due to v2＞ vS wood dust, so wood dust can be by air-flow v2Suspend and take out of " l " shape sedimentation pipe,
Enter dust cabin eventually.So far, that is, complete sand grains to separate with wood dust.
As shown in figure 1, being returned according to a kind of fibre board sanding dusts being automatically separated sand grains of the specific embodiment of the invention
Receipts machine, 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 suction nozzle 3, in this embodiment, multiple
Cleaner head 1 is connected with main suction nozzle 3 by a suction nozzle 2 respectively；Dedusting fan 6 located at the end of main suction nozzle 3, be used for based on
Suction nozzle 3 provides conveying power；The air inlet of cyclone separator 19 passes through the discharging opening of dust delivery pipe 11 and sack cleaner 4
Connect, the discharge outlet of sack cleaner 4 is provided with blanking rotary valve 7；Feeding fan 10, located at the top of dust delivery pipe 11, is used for
There is provided conveying power for dust delivery pipe 11；Dust cabin 20 is used for receiving the sanding dusts reclaiming from cyclone separator 19；In powder
The interlude of dirt delivery pipe 11 arranges one section of sedimentation pipe 5 in " l " shape, and the two ends of this sedimentation pipe 5 are connected with dust delivery pipe 11,
And it is respectively arranged at two ends with increaser 12 and reducing pipe 18 what sedimentation pipe 5 was connected with dust delivery pipe 11, it is prevented from because of sedimentation
The two ends of pipe 5 become suddenly big and cause and air-swirl in pipe, wherein, sedimentation pipe 5 with diameter greater than dust delivery pipe 11
Diameter, the air-flow entering cleaner head 1 first passes around main suction nozzle 3 entrance sack cleaner 4, then is transmitted by dust delivery pipe 11
To cyclone separator 19, " l " sedimentation pipe 5 of dust delivery pipe 11 carries out the separation of sand grains and wood dust, last wood dust
Enter dust cabin 20 to be collected；It is provided with grit collection groove 14 in the lower end of sedimentation pipe 5, be provided with above grit collection groove 14
Baffle plate 15, can buffer the inertia of sand grains advance, effectively fall in grit collection groove 14.Wherein, in actual use, must
The air velocity in dust delivery pipe 11 must be made to exceed the floating velocity v of sand grainsS sand grains, so that sand grains can be in horizontal feed pipeline
Run, according to above-mentioned reasoning, because of vS sand grains=2.5vS wood dust, carry out separating in sedimentation pipe 5 for guarantee sand grains, as the present embodiment
A kind of preferably the diameter of setting sedimentation pipe 5 must be more than 1 times of dust delivery pipe 11, less than its 1.58 times so that sedimentation
Air velocity in pipe 5 is consistently greater than the floating velocity of wood dust, and is less than the floating velocity of sand grains.The two ends of bypass pipe 8 with
The two ends connection of dust delivery pipe 11, one end of bypass pipe 8 be connected to feeding fan 10 and sack cleaner 4 discharging opening it
Between, the other end of bypass pipe 8 is connected between reducing pipe 18 and cyclone separator 19, is provided with air door adjusting valve on bypass pipe 8
9, using bypass pipe 8 speed adjusting technique with adjustable ventilation door, make the wind speed in " l " shape sedimentation pipe 5 adjustable, to obtain optimal sand grains
Separating effect.
The diameter setting of " l " the shape sedimentation pipe in the present embodiment is drawn by following reasoning:
If a diameter of d of the technique of dust delivery pipe 111, process gas flow speed be v1；The intended diameter of " l " shape sedimentation pipe 5 is
d2, design air velocity be v2, then according to a2v2=a1v1Obtain intended diameter d of " l " shape sedimentation pipe 52For
If making v1=vS sand grains, v2=vS wood dust, and vS sand grains=2.5vS wood dust, then the design maximum diameter of " l " shape sedimentation pipe 5
d2maxFor
When 1.58 times of a diameter of dust delivery pipe 11 of sedimentation pipe 5, the air velocity in sedimentation pipe 5 is v2=
vS wood dust, in actual use, the air velocity of general setting dust delivery pipe 11 is more than the floating velocity of sand grains, so wood powder
Dirt and sand grains all can run in level dusty delivery pipe 11 and enter sedimentation pipe 5, because the air velocity in sedimentation pipe 5 is v2=
vS wood dustVS sand grains, so sand grains can not continue to run in sedimentation pipe 5, and wood dust still is able to resume in sedimentation pipe 5 relaying
Defeated, therefore, the diameter of sedimentation pipe 5 is set to more than dust internal diameter of delivery hose 1, less than its 1.58 times it is ensured that wood dust and sand
Grain is capable of separating in sedimentation pipe 5.
Using method with reference to this fibre board sanding dusts recycling machine is further elaborated, as shown in Fig. 2 bag
Include following steps:
Step s100: start dedusting fan 6 and feeding fan 10 and blanking rotary valve 7 so that main suction nozzle 3 and dust are defeated
Send the floating velocity that the air velocity in pipe 11 is higher than sand grains；(enable sand grains and wood dust in main suction nozzle 3 and dust delivery pipe
Run in 11, in this embodiment, preferably, setting air velocity is slightly above the floating velocity of sand grains)；
Step s102: adjust the air door adjusting valve on bypass pipe, the air velocity in setting sedimentation pipe 5 is hanged in sanding dusts
Between floating speed and sand suspension speed；
Step s104: be admitted to sack cleaner after main suction nozzle 3 from the sand grains of cleaner head 1 suction and sanding dusts
4；
Step s106: make sand grains in sack cleaner 4 and sanding dusts enter into dust delivery pipe by blanking rotary valve 7
11, when reaching " l " shape sedimentation pipe 5, because the air velocity in sedimentation pipe 5 is in sanding dusts floating velocity and sand suspension speed
Between so that sand grains and sanding dusts carry out separating in sedimentation pipe 5, sand grains is fallen into grit collection groove 14 by sedimentation, and sanding
Dust continues transmission；
More specifically, the dust that sack cleaner 4 reclaims sends into dust delivery pipe 11, Ran Houjing through blanking rotary valve 7 again
Increaser 12 enters " l " shape sedimentation pipe 5, after sand grains enters " l " shape sedimentation pipe 5, preliminary in horizontal deceleration tube 13 first
Slow down, be subject to baffle plate 15 and the stop of deceleration bend pipe 16 tube wall to collide after reaching deceleration bend pipe 16 again, weaken sand grains further
Motional inertia, enters perpendicular deceleration tube 17 afterwards.Due to air velocity v in " l " shape sedimentation pipe 52＜ vS sand grains, so through slowing down repeatedly
Sand grains afterwards can not continue to be carried by pneumatic floating in perpendicular deceleration tube 17 and moves ahead, and fallen in grit collection groove 14 side by side
Go out outside pipeline.And work as after wood dust enters in " l " shape sedimentation pipe 5, due to wherein air velocity v2＞ vS wood dust, therefore wood dust still may be used
By air-flow v2Suspended and be carried up, reenter dust delivery pipe after reducing pipe 18 speed-raising and regain technique speed
Degree v1.
In this step, the air door adjusting valve 9 of bypass pipe 8 can be passed through to air velocity v in " l " shape sedimentation pipe 52Carry out
Adjust, to obtain optimal sand grains separating effect.
Step s108: last sanding dusts enter dust cabin 20 after cyclone separator 19 and reclaimed.
The description of the aforementioned specific illustrative embodiment to the present invention illustrate that and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can much be changed
And change.The purpose of selecting and describing the exemplary embodiment is that explaining that the certain principles of the present invention and its reality should
With so that those skilled in the art be capable of and utilize the present invention various different exemplary and
Various different selections and change.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (8)
1. a kind of fibre board sanding dusts recycling machine being automatically separated sand grains, comprising:
Multiple cleaner head；
Sack cleaner, its import is connected with the plurality of cleaner head by main suction nozzle；
Dedusting fan, it, located at the end of described main suction nozzle, conveys power for providing for described main suction nozzle；
Cyclone separator, its air inlet is connected with the discharging opening of described sack cleaner by dust delivery pipe；
Feeding fan, it, located at the top of described dust delivery pipe, conveys power for providing for described dust delivery pipe；And
Dust cabin, for receiving the sanding dusts reclaiming from cyclone separator；
It is characterized in that:
In the interlude of described dust delivery pipe, one section of sedimentation pipe in ' l ' shape, the two ends of this sedimentation pipe and described dust are set
Delivery pipe connects, wherein, the diameter with diameter greater than described dust delivery pipe of described sedimentation pipe, and the lower end in described sedimentation pipe
It is provided with grit collection groove；It is provided with baffle plate above described grit collection groove；
Also include bypass line, one end of described bypass pipe is connected to described feeding fan and the discharging opening of described sack cleaner
Between, the other end is connected between described sedimentation pipe and described cyclone separator.
2. fibre board sanding dusts recycling machine according to claim 1 is it is characterised in that the diameter of described sedimentation pipe
1 times more than described dust delivery pipe and 1.58 times less than described dust delivery pipe.
3. fibre board sanding dusts recycling machine according to claim 1 is it is characterised in that be provided with wind on described bypass pipe
Door regulating valve.
4. fibre board sanding dusts recycling machine according to claim 1 is it is characterised in that the plurality of cleaner head is led to respectively
Cross a suction nozzle to be connected with described main suction nozzle.
5. fibre board sanding dusts recycling machine according to claim 1 is it is characterised in that in described sedimentation pipe and described powder
What dirt delivery pipe connected is respectively arranged at two ends with increaser and reducing pipe.
6. fibre board sanding dusts recycling machine according to claim 1 is it is characterised in that going out in described sack cleaner
It is provided with blanking rotary valve at material mouth.
7. a kind of recovery method of fibre board sanding dusts recycling machine described in employing claim 1 is it is characterised in that include following
Step:
1) described dedusting fan and described feeding fan are started so that air-flow in described main suction nozzle and described dust delivery pipe
Speed is higher than the floating velocity of sand grains；
2) it is admitted to described sack cleaner from the sand grains of described cleaner head suction and sanding dusts after described main suction nozzle；
3) sand grains in described sack cleaner and sanding dusts enter into described dust delivery pipe, reach described ' l ' shape
During sedimentation pipe, arrange described sedimentation pipe in air velocity between sanding dusts floating velocity and sand suspension speed so that
Sand grains and sanding dusts carry out separating in described sedimentation pipe, and sand grains is fallen into described grit collection groove by sedimentation, and described sanding
Dust continues transmission；
4) last sanding dusts enter dust cabin after described cyclone separator and are reclaimed.
8. recovery method according to claim 7 is it is characterised in that also include bypass line, one end of described bypass pipe
It is connected between described feeding fan and the discharging opening of described sack cleaner, the other end is connected to described sedimentation pipe and described rotation
Between wind separator, described bypass pipe is provided with air door adjusting valve；Adjusted by adjusting the described air door on described bypass pipe
Valve, the air velocity in the described sedimentation pipe of setting is between sanding dusts floating velocity and sand suspension speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410794585.9A CN104552004B (en) | 2014-12-19 | 2014-12-19 | Fiberboard sanding dust recycling machine capable of automatically separating sand grains and recycling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410794585.9A CN104552004B (en) | 2014-12-19 | 2014-12-19 | Fiberboard sanding dust recycling machine capable of automatically separating sand grains and recycling method |
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| CN104552004B true CN104552004B (en) | 2017-01-25 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104924184B (en) * | 2015-04-29 | 2019-01-15 | 广西大学 | A kind of the fibre dust conveyer and desanding method of automatic sand removal |
| CN113134779B (en) * | 2021-04-27 | 2023-05-12 | 广西万林林产业有限责任公司 | Harmless treatment device and treatment method for polluted sanding dust of plywood |
| CN114955559A (en) * | 2022-05-19 | 2022-08-30 | 华能曲阜热电有限公司 | Negative pressure coal dust cleaning and recovering system |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5236370A (en) * | 1975-09-17 | 1977-03-19 | Matsushita Electric Ind Co Ltd | Dust collecting apparatus |
| SE425945B (en) * | 1981-04-03 | 1982-11-29 | Flaekt Ab | DEVICE FOR A DUST FILTER |
| US4411674A (en) * | 1981-06-02 | 1983-10-25 | Ohio Blow Pipe Co. | Continuous clean bag filter apparatus and method |
| JP2001248827A (en) * | 2000-03-08 | 2001-09-14 | Hitachi Zosen Corp | Equipment for treatment of incineration waste gas for obtaining clean incineration fly ash |
| CN201524509U (en) * | 2009-09-28 | 2010-07-14 | 江苏冶建锌业有限公司 | Zincum powder dust collecting device |
| CN103074091A (en) * | 2011-10-25 | 2013-05-01 | 山西沁新能源集团股份有限公司 | Matching vehicle-mounted movable coal-charging, coke-pushing and dust-removing apparatus of clean heat recovery coke oven |
| CN102698552A (en) * | 2012-05-30 | 2012-10-03 | 郭丰亮 | Multi-stage dust remover |
| CN103521024A (en) * | 2013-11-04 | 2014-01-22 | 无锡华盛橡胶新材料科技股份有限公司 | Efficient bag type dust collector |
| CN204546298U (en) * | 2014-12-19 | 2015-08-12 | 广西大学 | A kind of fiberboard sanding dusts recycling machine of automatic separation sand grains |
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2014
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