CN208270374U - A kind of experimental provision of fibre dust sedimentation mechanism research - Google Patents
A kind of experimental provision of fibre dust sedimentation mechanism research Download PDFInfo
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- CN208270374U CN208270374U CN201820697525.9U CN201820697525U CN208270374U CN 208270374 U CN208270374 U CN 208270374U CN 201820697525 U CN201820697525 U CN 201820697525U CN 208270374 U CN208270374 U CN 208270374U
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Abstract
The utility model provides a kind of experimental provision of fibre dust sedimentation mechanism research, including a transparent cabinet, the cabinet upper lateral is provided with porous air-supply plate, and box house is divide into upper part and lower part by porous air-supply plate, respectively superposed equal bellows and the observation case positioned at lower part；A dust inlet is opened up at the top of the equal bellows, which is connected with fibre dust drop tubes, and the upper end of fibre dust drop tubes is provided with plus grey device；The side of fibre dust drop tubes is connected with air supply tube, and the other end of air supply tube is provided with blower；The bottom of the observation case is provided with ash fall plate, observes and offers an air outlet on a side wall of case lower end, air outlet is connected with discharge pipe, and discharge pipe is connected with sack cleaner.The experimental provision of the utility model can facilitate the critical flow feature of analysis fiber grain deposition or suspension.
Description
Technical field
This experimental provision belongs to fibre dust research field, in particular to fiber in a kind of medium density fiber board manufacturing process
When dry tail gas conveying, the experimental provision of the sedimentation mechanism research of lignocellulosic particle.
Background technique
Currently, the big low efficiency waste of heat energy utilization quantity is more, drying of wood tail gas row in medium density fibre board (MDF) manufacturing enterprise
Temperature is put generally at 60-80 DEG C, and contains a large amount of vapor, and direct emission calorific value is very high, causes significant wastage.Pass through waste heat
When recyclable device recycles thermal energy, it is easy deposition because containing a large amount of dust in tail gas, and there are a large amount of Water vapor condensation Cheng Shui, it is fine
The water imbibition of dimension is very strong, and the fibre dust after water suction is easier to deposit.Waste-heat recovery device is while recycling big calorimetric, fiber
Deposition is very serious, and dust stratification causes Airflow obstruction, flow resistance to increase power consumption and increase, and as the aggravation of deposition, thermal resistance are continuously increased, changes
Heat weakens, and thermal energy recycling net profit constantly declines, and it is little that waste heat recycles business efficiency.If can analyze fiber grain deposition or
The critical flow feature of suspension, such as the non-settling critical flow velocity of fiber, as long as adjustment conveying speed, so that it may effectively prevent fibre
The deposition of particle is tieed up, the waste of enterprise's thermal energy is reduced.
Summary of the invention
For the critical flow feature analyzing fiber grain deposition or suspending, the object of the present invention is to provide a kind of fiber powder
The experimental provision of dirt sedimentation mechanism research.
To achieve the above object, the invention adopts the following technical scheme:
A kind of experimental provision of fibre dust sedimentation mechanism research, including a transparent cabinet, the cabinet upper lateral
Be provided with porous air-supply plate, box house is divide into upper part and lower part by porous air-supply plate, respectively superposed equal bellows and
Observation case positioned at lower part；A dust inlet is opened up at the top of the equal bellows, which is connected with fibre dust and falls
Pipe is fallen, the upper end of fibre dust drop tubes is provided with plus grey device；The side of fibre dust drop tubes is connected with air supply tube, air supply tube
The other end be provided with blower；The bottom of the observation case is provided with ash fall plate, on a side wall for observing case lower end
An air outlet is offered, air outlet is connected with discharge pipe, and discharge pipe is connected with sack cleaner.
Further, the porous air-supply plate is to be uniformly distributed porose plate.
Further, the blower is frequency conversion fan.
Further, air-supply butterfly valve is provided in the air supply tube.
Further, described plus grey device is funnel-form, and bottom is provided with ball valve.
Further, outlet air tube valve is provided in the discharge pipe.
Further, both ends opposite on the observation chamber interior wall are respectively arranged with the first fixing card and the second fixing card,
Ash fall plate is arranged on ash fall plate fixed frame, and the both ends of ash fall plate fixed frame are respectively placed in first
In fixing card and the second fixing card, and the contact point of ash fall plate fixed frame and the second fixing card and observation case is relatively high
Degree is fixed, and ash fall plate fixed frame can be adjusted with the contact point of the first fixing card and the relative altitude of observation case；It is located at
Tilt adjustment scale, tilt adjustment marked level setting, and itself and ash are provided on observation box outer wall at ash fall plate
The contact point of dirt sedimentation plate fixed frame and the second fixing card is located at same horizontal line.
Further, second fixing card is a T-type component, and T-type component is by orthogonal fixing end and boss
Composition, fixing end are fixed with observation chamber interior wall, and one end of ash fall plate fixed frame is placed on boss；Described first is fixed
Card includes porous member with a scale and bolt, and porous member with a scale is fixed on the opposite observation chamber interior wall of T-type component, and band is carved
Degree porous member is the plate structure for being vertically arranged with several bolts hole, and the side of each bolt hole is provided with scale
Line, bolt are placed on bolt by screw thread and bolt hole detachable connection, the other end of ash fall plate fixed frame.
Further, a side of the cabinet is detachable panel.
The utility model has the advantages that fiber grain is delivered in a cabinet by experimental provision of the invention at different flow rates with air-flow,
Analysis is when flow velocity is much, and the suspension that can rebound again after the plate-impact in cabinet, without being deposited on plate.Pass through blower
Fiber grain is sent into equal bellows above cabinet, observation case is entered by porous homogenating plate, it is heavy in the bottom setting one of observation case
Product plate will be deposited on plate if particle velocity ratio is smaller, if particle velocity ratio is larger, after colliding with plate
It will suspend again, and flow into below cabinet with air-flow and be discharged to air outlet.The motion features such as the deposition of particle or suspension, by saturating
Camera-lucida body is observed, and using high-speed camera instrument shooting particle motion profile, the movement velocity of analytical calculation particle and
Angle.Since fibre dust contains certain concentration, it is difficult to differentiate the motion profile of each particle taken, by dust
The middle movement that a small amount of trace particle is added and tracks single fibrous particle, to obtain effective experimental data.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the first fixing card connection schematic diagram；
Fig. 3 is the second fixing card connection schematic diagram；
Fig. 4 is the structural schematic diagram of porous member with a scale；
In figure, 1- ash fall plate, the first fixing card of 2-, the second fixing card of 3-, 4- discharge pipe, 5- sack cleaner,
The porous air-supply plate of 6-, 7- ball valve, 8- add grey device, 9- air supply tube, 10- air-supply butterfly valve, 11- blower, 12- tilt adjustment scale, 13-
Equal bellows, 14- detachable panel, 15- outlet air tube valve, 16- observe case, 17- fibre dust drop tubes, and 19- ash fall is put down
Plate fixed frame, 20-T type component, the second fixing piece of 21-, 23- porous member with a scale, 24- bolt, the first fixing piece of 25-, 26-
Bolt hole, 27- graduation mark.
Specific embodiment
Further explanation is done to the present invention with reference to the accompanying drawing.
A kind of experimental provision of fibre dust sedimentation mechanism research, including a transparent cabinet, the cabinet upper lateral
It is provided with porous air-supply plate 6, box house is divide into upper part and lower part by porous air-supply plate 6, respectively superposed equal bellows
13 and the observation case 16 positioned at lower part；The top of the equal bellows 13 opens up a dust inlet, which is connected with fibre
Dust drop tubes 17 are tieed up, the upper end of fibre dust drop tubes 17 is provided with plus grey device 8；The side of fibre dust drop tubes 17 connects
It is connected to air supply tube 9, the other end of air supply tube 9 is provided with blower 11；The bottom of observation case 16 is provided with ash fall plate 1, sees
It examines and offers an air outlet on a side wall of 16 lower end of case, air outlet is connected with discharge pipe 4, and discharge pipe 4 is connected with pocket type
Deduster 5.
Porous air-supply plate 6 is to be uniformly distributed porose plate, forms pressure stabilizing field using the uniformly distributed effect of porous plate, solves
The problem of dust is unevenly distributed in flow field.
Blower 11 is frequency conversion fan, thus it is possible to vary the size of flow and butterfly valve air door 10 changes the conveying speed of air-flow.
Air-supply butterfly valve 10 is provided in air supply tube 9, for adjusting the uninterrupted of air-supply.
Adding grey device 8 is funnel-form, and bottom is provided with ball valve 7, changes the aperture of ball valve 7, adjusts dust concentration.
It is provided with outlet air tube valve 15 in discharge pipe 4, adjusts the uninterrupted of outlet air.
Opposite both ends are respectively arranged with the first fixing card 2 and the second fixing card 3 on observation 16 inner wall of case, and ash fall is flat
Plate 1 is arranged on ash fall plate fixed frame 19, and it is fixed that the both ends of ash fall plate fixed frame 19 are respectively placed in first
On card 2 and the second fixing card 3, and ash fall plate fixed frame 19 and the contact point of the second fixing card 3 and the phase of observation case 16
Height is fixed, the contact point of ash fall plate fixed frame 19 and the first fixing card 2 and the relative altitude of observation case 16 can
It adjusts；Tilt adjustment scale 12, tilt adjustment scale 12 are provided on 16 outer wall of observation case at ash fall plate 1
It is horizontally disposed, and it is located at same horizontal line with the contact point of ash fall plate fixed frame 19 and the second fixing card 3.
Such as Fig. 2-3, the second fixing card 3 is a T-type component 20, and T-type component 20 is by orthogonal 201 He of fixing end
Boss 202 forms, and fixing end 201 is fixed by the second fixing piece 21 and observation 16 inner wall of case, ash fall plate fixed frame 19
One end be placed on boss 202；First fixing card 2 includes porous member 23 with a scale and bolt 24, porous member with a scale
23 are fixed on opposite 16 inner wall of observation case of T-type component 20 by the first fixing piece 25, and porous member 23 with a scale is one
It is vertically arranged with the plate structure of several bolts hole 26, the side of each bolt hole 26 is provided with graduation mark 27, bolt 24
By screw thread and 26 detachable connection of bolt hole, the other end of ash fall plate fixed frame 19 is placed on bolt 24.It is logical
It crosses the bolt hole 26 of bolt 24 connection and different height, to adjust the different inclinations of ash fall plate 1 with respect to the horizontal plane
Angle.
One side of cabinet is detachable panel 14, convenient for periodically being cleaned to device, or maintenance.
Fiber grain is sent into the equal bellows 13 above cabinet by blower, observation case 16 is entered by porous homogenating plate 6,
The bottom setting one of observation case 16 has ash fall plate 1, if particle velocity ratio is smaller, will be deposited on ash fall plate 1
On, if particle velocity ratio is larger, will suspend again after colliding with ash fall plate 1, and flowed under cabinet with air-flow
Side to air outlet is discharged.The motion features such as the deposition of particle or suspension, are observed by transparent cabinet, and are taken the photograph using high speed
As the motion profile of instrument shooting particle, the movement velocity and angle of analytical calculation particle.
Since fibre dust contains certain concentration, be difficult to differentiate the motion profile of each particle taken, by
The movement that a small amount of trace particle tracks single fibrous particle is added in dust, to obtain effective experimental data.
The adjusting of experimental factors: 1) adjusting the conveying speed of air-flow using butterfly valve and frequency conversion fan, and analysis particle exists
Motion feature under different in flow rate, after colliding with deposition plate.2) by adjusting consolidating for connection deposition flat bracket two sides
Surely the height blocked changes the tilt angle of plate, the influence that analysis collision angle deposits particle.3) dust is adjusted using ball valve
Concentration, analyze influence of the granule density to sedimentation.
It in experimentation, first selectes dust concentration and deposition plate inclination angle, flow velocity is gradually increased from small, until taking particle
Until rebound, then change deposition plate inclination angle, repeats experiment to the flow velocity for obtaining particle bounce；Then change deposited concentration again, weight
Multiple above-mentioned experiment.It is real same deposition can also to be carried out to different-grain diameter, draw ratio, moisture content and different wooden fiber grains
It tests.The exhaust of experimentation is pollution-free by discharging again after bag filter filtering, after experiment, opens detachable
Panel cleans cabinet, convenient for experiment next time.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of experimental provision of fibre dust sedimentation mechanism research, it is characterised in that: including a transparent cabinet, the cabinet
Upper lateral is provided with porous air-supply plate (6), and box house is divide into upper part and lower part, is respectively located at by porous air-supply plate (6)
The equal bellows (13) on top and observation case (16) positioned at lower part；A dust inlet is opened up at the top of the equal bellows (13),
The dust inlet is connected with fibre dust drop tubes (17), and the upper end of fibre dust drop tubes (17) is provided with plus grey device (8)；It is fine
The side of dimension dust drop tubes (17) is connected with air supply tube (9), and the other end of air supply tube (9) is provided with blower (11)；The sight
The bottom for examining case (16) is provided with ash fall plate (1), is observed and is offered an outlet air on a side wall of case (16) lower end
Mouthful, air outlet is connected with discharge pipe (4), and discharge pipe (4) is connected with sack cleaner (5).
2. the experimental provision of fibre dust sedimentation mechanism research according to claim 1, it is characterised in that: described porous to send
Aerofoil (6) is to be uniformly distributed porose plate.
3. the experimental provision of fibre dust sedimentation mechanism research according to claim 1, it is characterised in that: the blower
It (11) is frequency conversion fan.
4. the experimental provision of fibre dust sedimentation mechanism research according to claim 1, it is characterised in that: the air supply tube
(9) air-supply butterfly valve (10) is provided in.
5. the experimental provision of fibre dust sedimentation mechanism research according to claim 1, it is characterised in that: described plus grey device
It (8) is funnel-form, bottom is provided with ball valve (7).
6. the experimental provision of fibre dust sedimentation mechanism research according to claim 1, it is characterised in that: the discharge pipe
(4) outlet air tube valve (15) are provided in.
7. the experimental provision of fibre dust sedimentation mechanism research according to claim 1, it is characterised in that: the observation case
(16) both ends opposite on inner wall are respectively arranged with the first fixing card (2) and the second fixing card (3), and ash fall plate (1) is set
It sets on ash fall plate fixed frame (19), the both ends of ash fall plate fixed frame (19) are respectively placed in the first fixing card
(2) and in the second fixing card (3), and the contact point and observation case of ash fall plate fixed frame (19) and the second fixing card (3)
(16) relative altitude is fixed, the contact point and observation case (16) of ash fall plate fixed frame (19) and the first fixing card (2)
Relative altitude can adjust；Tilt adjustment scale is provided on observation case (16) outer wall at ash fall plate (1)
(12), tilt adjustment scale (12) is horizontally disposed, and it is connect with the second fixing card (3) with ash fall plate fixed frame (19)
Contact is located at same horizontal line.
8. the experimental provision of fibre dust sedimentation mechanism research according to claim 7, it is characterised in that: described second is solid
Fixed card (3) is a T-type component (20), and T-type component (20) is made of orthogonal fixing end (201) and boss (202), Gu
Fixed end (201) is fixed with observation case (16) inner wall, and one end of ash fall plate fixed frame (19) is placed on boss (202)；
First fixing card (2) includes porous member with a scale (23) and bolt (24), and porous member (23) with a scale is fixed on T-type
On opposite observation case (16) inner wall of component (20), porous member (23) with a scale is one and is vertically arranged with several bolts hole
(26) side of plate structure, each bolt hole (26) is provided with graduation mark (27), and bolt (24) passes through screw thread and bolt
Hole (26) detachable connection, the other end of ash fall plate fixed frame (19) are placed on bolt (24).
9. the experimental provision of fibre dust sedimentation mechanism research according to claim 1, it is characterised in that: the cabinet
One side is detachable panel (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820697525.9U CN208270374U (en) | 2018-05-11 | 2018-05-11 | A kind of experimental provision of fibre dust sedimentation mechanism research |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820697525.9U CN208270374U (en) | 2018-05-11 | 2018-05-11 | A kind of experimental provision of fibre dust sedimentation mechanism research |
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| CN208270374U true CN208270374U (en) | 2018-12-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108693080A (en) * | 2018-05-11 | 2018-10-23 | 南京林业大学 | A kind of experimental provision of fibre dust sedimentation mechanism research |
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2018
- 2018-05-11 CN CN201820697525.9U patent/CN208270374U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108693080A (en) * | 2018-05-11 | 2018-10-23 | 南京林业大学 | A kind of experimental provision of fibre dust sedimentation mechanism research |
| CN108693080B (en) * | 2018-05-11 | 2024-02-02 | 南京林业大学 | Experimental device for research of fiber dust deposition mechanism |
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