CN208944593U - A kind of wood dust sand removing machine - Google Patents
A kind of wood dust sand removing machine Download PDFInfo
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- CN208944593U CN208944593U CN201821001521.9U CN201821001521U CN208944593U CN 208944593 U CN208944593 U CN 208944593U CN 201821001521 U CN201821001521 U CN 201821001521U CN 208944593 U CN208944593 U CN 208944593U
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- sand grains
- wood dust
- pipe
- sand
- separation chamber
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Abstract
The utility model discloses a kind of wood dust sand removing machines, mainly by wood dust storehouse, discharging rotary valve I, motor I, feeding screw, perpendicular feeder pipe, obliquely downward expects pipe, sand grains separation chamber, motor II, blower I, sand grains and impurity delivery pipe, discharging rotary valve II, perpendicular sand grains separating pipe, wood dust delivery pipe I and blower II；Main air inlet and fence are equipped with the place of being connected, sand grains separation chamber in expects pipe obliquely downward；The main air inlet is equipped with main air door；Secondary air inlet is equipped with the perpendicular sand grains separating pipe place of being connected in wood dust delivery pipe I；The secondary air inlet is equipped with secondary air door.The utility model structure is simple, separative efficiency is high, desanding effect is good, can control the air velocity in sand removing machine, and the wood dust of separator well and sand grains can be automatically transported to respectively in corresponding external equipment.
Description
Technical field
The utility model belongs to dust separation equipment, and in particular to a kind of wood dust sand removing machine.
Background technique
Sanding surface is last one of manufacturing procedure during Fibreboard Production.According to measuring and calculating, fiberboard after sanding,
Generated wood powder dust quantity accounts for about the 3~4% of fibreboard product amount.China is as the first in the world Fibreboard Production big country, every year
Sanding wood power dirt incredible amount.About the processing of fiberboard sanding wood power dirt, Fibreboard Production enterprise in China's is for section at present
About resource the considerations of, mostly wood dust is recycled using dust collection equipment, is then mixed in proportion with fiber again as additional materials
It is used newly in pressboard.The recycling of sanding wood power dirt can not only reduce the waste of resource, reduce production cost, and
Sanding wood power dirt may also function as fiberfill fibers gap in fiberboard, improves fiberboard density and improves the effect of board surface quality.
Therefore, fiberboard sanding wood power dirt is recycled, it has also become the common recognition of Fibreboard Production enterprise.However, each enterprise exists at present
During wood dust recycles, all suffer from a common problem: here it is sand during fiberboard sanding, on abrasive band
Grain can constantly fall off and be mixed into sanding wood power dirt, then be entered in fibreboard product by being used in mixed way with fibrous raw material.
When carrying out sanding processing to the fiberboard containing sand grains, serious danger will be brought to sanding process contained in the sand grains in fiberboard
Evil: first is that causing board surface quality coarse due to the blocking that sand grains cuts sand, make product drop etc.；Second is that since sand grains is to abrasive band
The effect of gnawing, causes abrasive band exception sand fallout, reduces the abrasive band service life, since abrasive band is expensive, be added significantly to sanding at
This.More seriously, the sand grains to fall off extremely returns to raw material cabin further through dust collection equipment, then enters fiberboard again, so anti-
Complex enables enterprise's very headache at vicious circle.For this purpose, some inventors also once propose some technical solutions in succession, as in
State's number of patent application is 2014208041607, Chinese Patent Application No. 2014208041842 and Chinese Patent Application No. are
2015101573109 etc., these technical solutions realize wood dust to a certain extent and sand grains is effectively separated, but it
Still come with some shortcomings, for example low separation efficiency, air velocity are non-adjustable, sand grains separating effect is uncontrollable, cannot be automatic
Transhipment is by isolated sand grains and impurity etc..
Utility model content
The purpose of this utility model is that in view of the deficienciess of the prior art, providing that a kind of structure is simple, separation effect
The wood dust sand removing machine of the high and controllable separating effect of rate.
To achieve the goals above, the utility model uses following technical scheme:
A kind of wood dust sand removing machine, mainly by wood dust storehouse, discharging rotary valve I, motor I, feeding screw, perpendicular feeder pipe, tiltedly
Feeder pipe, sand grains separation chamber, motor II, blower I, sand grains and impurity delivery pipe, discharging rotary valve II, perpendicular sand grains separating pipe, wood powder
Dirt delivery pipe I and blower II；The discharging rotary valve I is mounted between wood dust storehouse and feeding screw；The feeding screw
One end is connected with the power output shaft of motor I, and the other end of feeding screw is connected with one end of perpendicular feeder pipe；It is described it is perpendicular under
The other end of expects pipe is connected by expects pipe obliquely downward with sand grains separation chamber；The discharging rotary valve II is mounted on sand grains separation chamber and sand
Between grain and impurity delivery pipe, and the control terminal of discharging rotary valve II is connected with the power output shaft of motor II；The sand
One end of grain and impurity delivery pipe is connected with blower I；The blower II passes sequentially through wood dust delivery pipe I, perpendicular sand grains point
It is connected from pipe with sand grains separation chamber；
Main air inlet and fence are equipped with the place of being connected, sand grains separation chamber in expects pipe obliquely downward；The main air inlet is equipped with main wind
Door；
Secondary air inlet is equipped with the perpendicular sand grains separating pipe place of being connected in wood dust delivery pipe I；The secondary air inlet is equipped with
Secondary air door；
The wood dust and sand grains impurity in the wood dust storehouse enter feeding screw from the discharging rotary valve I in wood dust orlop portion,
Then in turn through perpendicular feeder pipe, expects pipe enters and carries out initial gross separation in sand grains separation chamber obliquely downward, and the sand grains impurity of bulky grain exists
The bottom of sand grains separation chamber is fallen under gravity；The sand grains impurity of wood dust and fine particle enters perpendicular under the action of air-flow
It is further separated in sand grains separating pipe, the sand grains impurity of fine particle falls under gravity into the bottom of sand grains separation chamber
It is sent into sand grains and impurity conveyance conduit together with the sand grains impurity of bulky grain by discharging rotary valve II, wood is finally sent out by blower I
Outside dust sand removing machine；Wood dust after further separating sends out wood dust by blower II via wood dust delivery pipe I
Outside sand removing machine.
It further illustrates, is equipped with sand grains retaining wall, the sand grains with the perpendicular sand grains separating pipe place of being connected in sand grains separation chamber
Retaining wall, which slopes inwardly, to be arranged.
It further illustrates, the fence is mounted on above sand grains separation chamber on the main channel of wood dust.
It further illustrates, the sand grains separation chamber is equipped with observation window.
It further illustrates, the blower I is connected by pneumatic carrier with the combustion furnace of outside setting.
It further illustrates, the blower II is connected by wood dust delivery pipe II with the fibre dryer of outside setting
It is logical.
The principle of the utility model structure design considerations:
It in air, can be by object support to the air velocity V in the air without fallingsThe referred to as floating velocity of the 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, γs- particulate matter
Severe (㎏/m3), γaSevere (㎏/m of-air3)。
From the above equation, we can see that: in the air stream, the floating velocity V of particulate mattersWith the diameter d of particlesWith severe γsIt is related.
That is the particle of same diameter, the big person of severe, floating velocity is big, and the small person's floating velocity of severe is small.The particle of identical severe, diameter are big
Person's floating velocity is big, and the small person's floating velocity of diameter is small.
The object that the utility model is directed to is wood dust and sand grains in air stream.Obviously under normal circumstances, sand grains
Diameter and severe be all larger than wood dust, i.e. dS sand grains> dS wood dust、γS sand grains> γS wood dust.Therefore, the floating velocity perseverance of sand grains is greater than
The floating velocity of wood dust, i.e. VS sand grains> VS wood dust.Currently, the material of abrasive band sand grains is mainly white fused alumina, Brown Alundum or silicon carbide.
Through calculating, the floating velocity of sand grains is about 2.5 times of wood dust, i.e. VS sand grains=2.5VS wood dust。
The utility model is exactly that there are the principles of floating velocity difference using between sand grains and wood dust, by defeated in log dust
The wood dust sand removing machine for installing the utility model in pipeline additional is sent, air mass flow and flow velocity be not in guaranteeing log powder transfer pipelines
Under the premise of change, only allows wood dust that can reach wood dust conveyance conduit terminal and enter fiber drying pipeline, prevent sand grains from reaching
Terminal and be detained and be separated in the sand grains separation chamber of wood dust sand removing machine, remove wood dust sand grains to reach
Purpose.
The working principle (course of work) of the utility model:
When work starts, main air door is opened, closes secondary air door, starting blower I, blower II, motor I and motor II.Air
Under the suction function that blower II generates, enter sand grains separation chamber from main air inlet, it is then defeated through perpendicular sand grains separating pipe, wood dust
Pipe I, blower II and wood dust delivery pipe II is sent to enter fibre dryer.Wood dust in wood dust storehouse is then fallen through discharging rotary valve I
Enter in feeding screw, under the driving of motor I, wood dust is delivered in the perpendicular feeder pipe of sand removing machine by feeding screw, then into
Enter expects pipe obliquely downward.Wood dust is cut with the inclination tube wall of expects pipe obliquely downward when vertical drop is through expects pipe obliquely downward in perpendicular feeder pipe
It cuts collision and disperses, then along the sand grains separation chamber that inclined-plane slides into sand removing machine.After wood dust enters sand grains separation chamber, by air-flow
Carry right-to-left movement.Continue quilt under the action of fence not by fully decentralized wood powder sludge pellet in expects pipe obliquely downward before
Dispersion, enables sand grains to be sufficiently separated with wood dust.Since the air velocity in sand grains separation chamber is arranged on wood dust and sand
Between the floating velocity of grain, i.e., the air velocity in sand grains separation chamber is higher than the floating velocity of wood dust, and outstanding lower than sand grains
Floating speed.Therefore, the air-flow of wood dust floating velocity is higher than in sand grains separation chamber, wood dust can be carried all the way through perpendicular sand grains
Separating pipe, wood dust delivery pipe I, blower II and wood dust delivery pipe II enter fibre dryer and recycle.And due to sand grains
Air velocity in separation chamber is lower than the floating velocity of sand grains, cannot carry sand grains and continue to move ahead.Therefore, most of sand grains is in weight
The bottom that sand grains separation chamber is fallen under power effect is sent into sand grains and impurity conveyance conduit by discharging rotary valve II, finally by blower I
Burn through pneumatic carrier feeding combustion furnace and is converted to thermal energy.Part knocks sand grains gear by the forward sand grains of wood dust entrainment
After wall, it is repelled the bottom for returning to sand grains separation chamber and is separated.Part enters the sand grains of perpendicular sand grains separating pipe, due to not
It obtains enough suspension air velocities and is settled back into sand grains separation chamber and be separated.Obviously, when main air door is fully closed,
Secondary full trrottle, then whole dust and sand grains are settled down in sand grains separation chamber and are sent into burning by discharging rotary valve II and blower I
Furnace burning.Therefore, as long as suitably coordinating the aperture of main air door and secondary air door, the sand grains in wood dust can be separated all by sand removing machine
Out, except sand coarse aggregate ratio reaches as high as 100%, achieve the purpose that thorough desanding.
The advantages of the utility model:
1. the utility model structure is simple, separative efficiency is high, desanding effect is good, the gas velocity in sand removing machine can be controlled
Degree, and the wood dust of separator well and sand grains can be automatically transported to respectively in corresponding external equipment.
2. the wood dust sand removing machine of the utility model is the box structure of wide rectangle using any section, it is easy to add
Work manufacture.
3. there are two air inlets for the wood dust sand removing machine setting of the utility model: main air inlet and secondary air inlet.Main air inlet
Mouth is responsible for wood dust and provides power and speed, and guaranteeing that pure wood dust can be carried by air-flow can smoothly enter into fiber drying pipeline
It recycles.Secondary air inlet is then responsible for adjusting the size of air velocity in sand grains separation chamber, separates effect with the sand grains needed for obtaining
Fruit.Specific adjusting method is: when increasing the aperture of secondary air door, then the air velocity in sand grains separation chamber reduces, by secondary wind
When the aperture of door reduces, then the air velocity in sand grains separation chamber increases.
4. the wood dust sand removing machine of the utility model, the perpendicular feeder pipe of wood dust blanking pipe use and obliquely downward expects pipe are answered
Tube shaped is closed, the dispersion of conglomeration wood dust is conducive to.The conglomeration wood dust come through feeding screw conveying, in perpendicular blanking when beginning
Make the movement of falling object in pipe, divides subsequently into expects pipe obliquely downward and with the generation shearing collision of the inclination tube wall of expects pipe obliquely downward
It dissipates.
5. the wood dust sand removing machine of the utility model, grid are provided on the main channel of wood dust above the sand grains separation chamber
Column can disperse again conglomeration wood dust, be sufficiently separated sand grains with wood dust.
6. the wood dust sand removing machine of the utility model, the end in the wood dust main channel of sand grains separation chamber is equipped with inclined
Sand block wall partially passes through the sand grains of sand grains separation chamber with air-flow, is repelled the bottom for returning to sand grains separation chamber after knocking sand grains retaining wall
Portion and be separated.
7. the wood dust sand removing machine of the utility model, is equipped with perpendicular sand grains separating pipe, part sand grains enters perpendicular sand with wood dust
After grain separating pipe, separated due to floating velocity deficiency by the bottom that settles back into sand grains separation chamber again.
8. the wood dust sand removing machine of the utility model is equipped with discharging rotary valve in the bottom of sand grains separation chamber, will can divide at any time
It is transported in sand grains and impurity delivery pipe from the sand grains, impurity and coarse flour dirt to get off, and transfers combustion furnace burning through blower and turn
It is melted into thermal energy.
9. the wood dust sand removing machine of the utility model is equipped with transparent windows in the tank wall front of sand grains separation chamber, can lead to
The separating effect that observation window directly observes sand grains is crossed, and main air door and secondary air door are adjusted according to observed case, to obtain
Best desanding effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment of the present invention.
Appended drawing reference: wood dust storehouse 1, discharging rotary valve I 2, motor I 3, feeding screw 4, perpendicular feeder pipe 5, obliquely downward expects pipe 6, master
Air door 7, main air inlet 8, fence 9, sand grains separation chamber 10, motor II 11, pneumatic carrier 12, blower I 13, sand grains and impurity are defeated
Send pipe 14, discharging rotary valve II 15, observation window 16, sand grains retaining wall 17, perpendicular sand grains separating pipe 18, secondary air inlet 19, secondary air door 20, wood
Dust delivery pipe I 21, blower II 22, wood dust delivery pipe II 23.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
Embodiment:
As shown in Figure 1, a kind of wood dust sand removing machine, mainly by wood dust storehouse 1, discharging rotary valve I 2, motor I 3, feeding screw
4, feeder pipe 5, obliquely downward expects pipe 6, sand grains separation chamber 10, motor II 11, blower I 13, sand grains and impurity delivery pipe 14, discharging turn are erected
Valve II 15, perpendicular sand grains separating pipe 18, wood dust delivery pipe I 21 and blower II 22；The discharging rotary valve I 2 is mounted on wood dust
Between storehouse 1 and feeding screw 4；One end of the feeding screw 4 is connected with the power output shaft of motor I 3, feeding screw 4
The other end is connected with one end of perpendicular feeder pipe 5；The other end of the perpendicular feeder pipe 5 passes through expects pipe 6 obliquely downward and sand grains separation chamber
10 are connected；The discharging rotary valve II 15 is mounted between sand grains separation chamber 10 and sand grains and impurity delivery pipe 14, and discharging
The control terminal of rotary valve II 15 is connected with the power output shaft of motor II 11；One end of the sand grains and impurity delivery pipe 14 with
Blower I 13 is connected；The blower II 22 passes sequentially through wood dust delivery pipe I 21, perpendicular sand grains separating pipe 18 is separated with sand grains
Room 10 is connected；
Main air inlet 8 and fence 9 are equipped with 10 place of being connected, sand grains separation chamber in expects pipe 6 obliquely downward；The main air inlet 8 is set
There is main air door 7；
Secondary air inlet 19 is equipped with perpendicular 18 place of being connected of sand grains separating pipe in wood dust delivery pipe I 21；The secondary air inlet
Mouth 19 is equipped with secondary air door 20；
The wood dust and sand grains impurity in the wood dust storehouse 1 enter feeding spiral shell from the discharging rotary valve I 2 of 1 bottom of wood dust storehouse
Rotation 4, then in turn through perpendicular feeder pipe 5, obliquely downward expects pipe 6 enter sand grains separation chamber 10 in carry out initial gross separation, the sand of bulky grain
Grain impurity falls under gravity into the bottom of sand grains separation chamber 10；Work of the sand grains impurity of wood dust and fine particle in air-flow
It is further separated in the perpendicular sand grains separating pipe 18 of lower entrance, the sand grains impurity of fine particle falls under gravity into sand grains
The bottom of separation chamber 10 is sent into sand grains and impurity conveyance conduit 14 together with the sand grains impurity of bulky grain by discharging rotary valve II 15,
Finally sent out outside wood dust sand removing machine by blower I 13；Wood dust after further separating is via wood dust delivery pipe I
21 are sent out outside wood dust sand removing machine by blower II 22.
Sand grains retaining wall 17, the sand grains retaining wall 17 are equipped with perpendicular 18 place of being connected of sand grains separating pipe in sand grains separation chamber 10
Slope inwardly setting.The fence 9 is mounted on the main channel of 10 top wood dust of sand grains separation chamber.The sand grains separation
Room 10 is equipped with observation window 16.The blower I 13 is connected by pneumatic carrier 12 with the combustion furnace of outside setting.Described
Blower II 22 is connected by wood dust delivery pipe II 23 with the fibre dryer of outside setting.
Claims (6)
1. a kind of wood dust sand removing machine, it is characterised in that: mainly by wood dust storehouse (1), discharging rotary valve I (2), motor I (3), give
Expect spiral (4), perpendicular feeder pipe (5), obliquely downward expects pipe (6), sand grains separation chamber (10), motor II (11), blower I (13), sand grains and
Impurity delivery pipe (14), discharging rotary valve II (15), perpendicular sand grains separating pipe (18), wood dust delivery pipe I (21) and blower II (22)
Composition；The discharging rotary valve I (2) is mounted between wood dust storehouse (1) and feeding screw (4)；The one of the feeding screw (4)
End is connected with the power output shaft of motor I (3), and the other end of feeding screw (4) is connected with one end of perpendicular feeder pipe (5)；
The other end of the perpendicular feeder pipe (5) is connected by expects pipe (6) obliquely downward with sand grains separation chamber (10)；The discharging rotary valve II
(15) it is mounted between sand grains separation chamber (10) and sand grains and impurity delivery pipe (14), and the control terminal of discharging rotary valve II (15)
It is connected with the power output shaft of motor II (11)；One end of the sand grains and impurity delivery pipe (14) and blower I (13) phase
Connection；The blower II (22) passes sequentially through wood dust delivery pipe I (21), perpendicular sand grains separating pipe (18) and sand grains separation chamber
(10) it is connected；
Main air inlet (8) and fence (9) are equipped with (10) place of being connected, sand grains separation chamber in expects pipe obliquely downward (6)；The main air inlet
Mouth (8) is equipped with main air door (7)；
Secondary air inlet (19) is equipped with perpendicular sand grains separating pipe (18) place of being connected in wood dust delivery pipe I (21)；It is described it is secondary into
Air port (19) is equipped with secondary air door (20)；
The wood dust and sand grains impurity of the wood dust storehouse (1) enter feeding from the discharging rotary valve I (2) of wood dust storehouse (1) bottom
Spiral (4), then in turn through perpendicular feeder pipe (5), expects pipe (6) enters progress initial gross separation in sand grains separation chamber (10) obliquely downward,
The sand grains impurity of bulky grain falls under gravity into the bottom of sand grains separation chamber (10)；The sand grains of wood dust and fine particle is miscellaneous
Matter enters in perpendicular sand grains separating pipe (18) under the action of air-flow further to be separated, and the sand grains impurity of fine particle is in gravity
Sand grains is sent by discharging rotary valve II (15) together with the sand grains impurity of bulky grain in the bottom that sand grains separation chamber (10) is fallen under effect
And in impurity delivery pipe (14), finally sent out outside wood dust sand removing machine by blower I (13)；Wood after further separating
Dust is sent out outside wood dust sand removing machine via wood dust delivery pipe I (21) by blower II (22).
2. wood dust sand removing machine according to claim 1, it is characterised in that: separated in sand grains separation chamber (10) with perpendicular sand grains
It manages (18) place of being connected and is equipped with sand grains retaining wall (17), the sand grains retaining wall (17), which slopes inwardly, to be arranged.
3. wood dust sand removing machine according to claim 1, it is characterised in that: the fence (9) is mounted on sand grains separation
Above room (10) on the main channel of wood dust.
4. wood dust sand removing machine according to claim 1, it is characterised in that: the sand grains separation chamber (10) is equipped with observation
Window (16).
5. wood dust sand removing machine according to claim 1, it is characterised in that: the blower I (13) passes through pneumatic conveying
Pipe (12) is connected with the combustion furnace of outside setting.
6. wood dust sand removing machine according to claim 1, it is characterised in that: the blower II (22) is defeated by wood dust
Pipe II (23) and the fibre dryer of outside setting is sent to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821001521.9U CN208944593U (en) | 2018-06-27 | 2018-06-27 | A kind of wood dust sand removing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821001521.9U CN208944593U (en) | 2018-06-27 | 2018-06-27 | A kind of wood dust sand removing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208944593U true CN208944593U (en) | 2019-06-07 |
Family
ID=66731484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821001521.9U Active CN208944593U (en) | 2018-06-27 | 2018-06-27 | A kind of wood dust sand removing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208944593U (en) |
-
2018
- 2018-06-27 CN CN201821001521.9U patent/CN208944593U/en active Active
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