CN206001802U - A kind of brown coal fluidized bed dryer - Google Patents
A kind of brown coal fluidized bed dryer Download PDFInfo
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- CN206001802U CN206001802U CN201621000709.2U CN201621000709U CN206001802U CN 206001802 U CN206001802 U CN 206001802U CN 201621000709 U CN201621000709 U CN 201621000709U CN 206001802 U CN206001802 U CN 206001802U
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Abstract
The utility model provides a kind of brown coal fluidized bed dryer, including frame and casing, is provided with central dividing plate between upper box and lower box；Upper strata hot air distribution plate is tiltedly installed with the frame in top box body, is provided with air inlet on upper box and nowel body sidewall, be provided with air outlet above the hot air distribution plate of upper strata on the top box body sidewall；Lower floor's hot air distribution plate is tiltedly installed with lower box interior framework, below lower floor's hot air distribution plate, air outlet is provided with Wei Yu lower floor's hot air distribution plate and central dividing plate between；Air inlet is connected with high-temperature flue gas pipeline；The beneficial effects of the utility model are：The utility model simple structure, floor space is little, residence time of material is uniform, solve the problems, such as that partial material prolonged stay can not be arranged out in drying equipment, effectively prevent the susceptible to plugging situation of material sieve aperture, material moisture is uniform, it is achieved that the uniform granular material ground fluidisation or mobile of wide size distribution, easy-to-operate.
Description
Technical field
The utility model is related to clean coal power generation brown coal drying technical field, more particularly to a kind of brown coal and oil shale etc.
The brown coal fluidized bed dryer of inflammable and explosive material.
Background technology
The drying means of the inflammable and explosive material such as brown coal and oil shale has many kinds, contacts with wet stock by dried medium
Mode, can be divided into direct-heating type and dry and indirect heating type two big class of drying.As brown coal and oil shale are not afraid of smoke pollution,
With flue gas generation chemical reaction, therefore the industrial direct-heating type convective drying being most commonly used that with flue gas as dried medium
Device, such as pneumatic conveyer dryer, revolving drier, rotary pipe type drier and fluidized bed dryer etc..Pneumatic conveyer dryer simple structure,
Treating capacity is big, and drying time is short, but SR is big, and the dry products of low moisture (particularly less than 5%) to be obtained compare
Difficult.Revolving drier and rotary pipe type drier, operating flexibility are big, and production capacity is big, but equipment volume is big, one-time investment
High.Conventional fluidization bed dryer simple structure, low cost, easy to maintenance, treating capacity is big, but requires that wet stock size distribution is equal
Even.It is well known that after brown coal and oil shale are crushed, the particle size distribution for obtaining is relatively wide, if using common fluid bed
Drier is dried, and arises that bulky grain is not also fluidized, and little particle is less easily entrained by out bed；Or
Person's little particle is fluidized and bulky grain transfixion, dead bed or hot air distribution plate sieve pore blockade problem occurs.At present, opened
The a variety of fluidized bed drying equipments dry for coal charge are sent, for example, Chinese patent application is entitled " multichamber type fluid bed point
Stage arrangement " (CN1153633C), " drying means of coal and drying device " (CN1120872C), " moving iris type fluidized bed "
(CN101063059A), one moving bed dryer of multistage combined fluidizing and its drying means (CN1100445674C), Yi Zhongliu
Change bed selection by winnowing damping machine and selection by winnowing damping new technology (CN101786080A) etc., although these fluidized bed dryers above-mentioned all have
Respective dry technology advantage, but all there is the local retention area of material in these drying equipments in various degree, for brown coal and
The inflammable and explosive material such as oil shale, so arises that material Local Residence Time in the drying equipment is long, exist burning and
The potential safety hazards such as blast.
Utility model content
The purpose of this utility model is to provide and a kind of with self-cleaning function and ensure that the wet thing of wide size distribution
Material particle equably can be fluidized or mobile brown coal fluidized bed dryer.
The utility model is realized by following measure：A kind of brown coal fluidized bed dryer, sets including frame and sealing
The casing around the frame is put, wherein, the casing includes upper box lid, upper box and lower box, the upper box and institute
State between lower box and be provided with central dividing plate；Upper strata hot blast distribution is tiltedly installed with the frame in the top box body
Plate, is provided with air inlet on the top box body sidewall between the central dividing plate and the upper strata hot air distribution plate, described
Air outlet is provided with the side wall of upper box lid；Lower floor's hot blast distribution is tiltedly installed with the frame in the nowel body
Plate, is provided with air inlet on the nowel body sidewall below lower floor's hot air distribution plate, divides positioned at lower floor's hot blast
Air outlet is provided between fabric swatch and the central dividing plate；The air inlet is connected with high-temperature flue gas pipeline；
Described upper box one end is provided with charging aperture, on upper strata hot air distribution plate described in the side relative with the charging aperture
Middle discharging opening is provided with, on the side wall of upper box described in the middle discharging opening side, is tiltedly installed with guide plate, position
Discharging opening is provided with lower floor's hot air distribution plate described in described charging aperture the same side；
The upper strata hot air distribution plate and lower floor's hot air distribution plate all offer inclined channel, the perforate of the inclined channel
Rate is 2%-25%, preferably 18%, a diameter of 1-4mm of the inclined channel, preferably 2mm, and the inclined channel with horizontal direction is in
10-20 ° of angle, preferably 15 °.
The upper strata hot air distribution plate is arranged in the frame with material moving direction is downward-sloping, the upper strata hot blast
Distribution grid horizontal by 2-4 ° of angle, preferably 3 °.
The charging aperture is provided with inlet valve, and the middle discharging opening is provided with the intermediate blanking with intermediate blanking valve
Pipe, the discharging opening are provided with outlet valve.
Upper materials delivery device is provided with the frame above the upper strata hot air distribution plate；
The upper materials delivery device include chain drive component and some groups be arranged on the chain drive component
Stirring board component, the stirring board component include transverse support bar and several be uniformly fixed in the transverse support bar
Material rotating plate；The two ends of the transverse support bar are fixed on the chain drive component；
The transverse support bar is parallel with the upper strata hot air distribution plate, and the material rotating plate lower surface and upper strata heat
The distance between wind distribution grid upper surface is 10-50mm, preferably 30mm.
The material rotating plate is trapezoidal plate and to be inclined in the transverse support bar, the material rotating plate with described horizontal
Angle between strut axis is 0～45 °, preferably 30 °, and the material rotating plate in the same transverse support bar is in axle
Symmetrical.
The chain drive component include drive chain wheel shaft, driven chain wheel shaft, two be separately positioned on the drive sprocket
The drive sprocket at axle two ends and two driven sprockets for being separately positioned on the driven chain wheel shaft two ends, positioned at described in the same side
Drive sprocket and the driven sprocket are connected by roller chain, are provided with through hole, institute in the inner links of the roller chain
State transverse support bar two ends and the fixed plate with through hole is welded with, the stirring board component is by through the logical of the roller chain
Being bolted on the chain drive component of hole and the fixed plate through hole.
The stirring board component includes two transverse support bar be arrangeding in parallel, is provided with two on the material rotating plate
Through hole, the transverse support bar through the through hole and with the stirring plate weld.
Lower floor's material pushing mechanism is additionally provided with the frame above lower floor's hot air distribution plate；The lower floor
Material pushing mechanism includes the interior helical axis for setting cavity, and described helical axis one end is connected with driving means, and the helical axis is another
End is provided with the swivel joint being connected with heat medium pipeline, and described helical axis one end is additionally provided with the condensation connected with the cavity
Water discharge pipe, the end of the swivel joint are provided with condensation-water drain and the steam connected with the cavity set in the helical axis
Import.
The helical axis a diameter of 100-500mm, preferably 300mm, the spire of the helical axis outer surface is some
Axisymmetric helical blade is welded, the helical blade is 10-30 ° with the central axis angle of the helical axis, excellent
Elect 20 ° as.
The high-temperature flue gas pipeline that the air inlet is discharged with coal-fired boiler in power plant by blower fan is connected；The air outlet passes through
It is connected with an air-introduced machine after one deduster.
Madial wall is provided with the side wall of lower box described in lower floor's material pushing mechanism both sides, the madial wall
The side heating chamber of sealing is formed with the side wall of the lower box, the two ends of the side heating chamber are respectively arranged with steam inlet and steaming
Vapor outlet；Side heating interior is connected with the high-temperature steam of flowing, for carrying out indirectly to the material of lower floor's material pushing mechanism
Heating.
The beneficial effects of the utility model are：The utility model simple structure, floor space are little, and flexible operation, material stop
Stay the time short, solve the problems, such as that material prolonged stay can not be arranged out in drying equipment, effectively prevent material sieve aperture easy
The situation of blocking, material moisture are uniform, it is achieved that the uniform granular material ground fluidisation or mobile of wide size distribution, make to operate
Journey safe ready.
Description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the structural representation of material rotating plate in the utility model embodiment（Visual angle is the left view of Fig. 1）.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the structural representation of lower floor's material pushing mechanism in the utility model embodiment.
Fig. 5 is the structural representation of side heating chamber in the utility model embodiment.
Wherein, reference is：1st, outlet valve；2nd, lower box；3rd, air inlet；4th, lower floor's material pushing mechanism；5th, lower floor
Hot air distribution plate；6th, central dividing plate；7th, air outlet；8th, air inlet；9th, upper strata hot air distribution plate；10th, drive sprocket；11st, feed
Valve；12nd, upper box lid；13rd, air outlet；14th, roller chain；15th, stirring board component；16th, driven sprocket；17th, guide plate；18th, on
Casing；19th, intermediate blanking pipe；20th, intermediate blanking valve；21st, bracing frame；22nd, driving means；23rd, fixed plate；24th, material rotating plate；
25th, transverse support bar；26th, helical axis；27th, helical blade；28th, swivel joint；29th, condensed water discharge pipe；30th, condensed water goes out
Mouthful；31st, steam inlet；32nd, side heating chamber.
Specific embodiment
For the technical characterstic of this programme clearly can be described, below by specific embodiment, this programme is illustrated.
Referring to Fig. 1, the utility model is a kind of brown coal fluidized bed dryer, including frame and is sealingly disposed in around frame
Casing, wherein, casing includes upper box lid 12, upper box 18 and lower box 2, in being provided between upper box 18 and lower box 2
Space bar 6；Upper strata hot air distribution plate 9 is tiltedly installed with 18 interior framework of upper box, positioned at central dividing plate 6 and upper strata hot blast
Air inlet 7 is provided with 18 side wall of upper box between distribution grid 9, on the side wall of upper box lid 12, is provided with air outlet 13；Position
Lower floor's hot air distribution plate 5 is tiltedly installed with 2 interior framework of lower box, positioned at 5 lower section lower box of lower floor's hot air distribution plate, 2 side wall
On be provided with air inlet 3, be provided with air outlet 7 between lower floor's hot air distribution plate 5 and central dividing plate 6；Air inlet 7 and air intake
Mouth 3 is all connected with high-temperature flue gas pipeline；
18 upper surface side of upper box is provided with charging aperture, sets on the side upper strata hot air distribution plate 9 relative with charging aperture
Middle discharging opening is equipped with, and guide plate 17 is tiltedly installed with the side wall of upper box described in the middle discharging opening side, is led
9 lower end of upper strata hot air distribution plate is located to plate 17, guide plate 17 can avoid solid accumulation, intermediate blanking mouth is entered to material and is risen
To the effect being oriented to；Discharging opening is provided with charging aperture the same side lower floor hot air distribution plate 5；
Upper strata hot air distribution plate 9 and lower floor's hot air distribution plate 5 all offer inclined channel, and the percent opening of inclined channel is 2%-
25%, preferably 18 °, a diameter of 1-4mm of inclined channel, preferably 2mm, inclined channel are in 10-20 ° of angle with horizontal direction；Inclined hole
Road can be good at avoiding feed blocking, it is ensured that hot blast enters unobstructed.
Upper strata hot air distribution plate 9 is arranged in frame with material moving direction is downward-sloping, upper strata hot air distribution plate 9 and water
Plane is in 2-4 ° of angle, preferably 3 °.
Charging aperture is provided with inlet valve 11, and middle discharging opening is provided with the intermediate blanking pipe 19 with intermediate blanking valve 20,
Discharging opening is provided with outlet valve 1.
Upper materials delivery device is provided with methods, rack on upper strata hot air distribution plate 9；
Referring to Fig. 2 and Fig. 3, upper materials delivery device include chain drive component and some groups be arranged on chain drive group
Stirring board component 15 on part, stirring board component 15 include that transverse support bar 25 is uniformly fixed on transverse support bar 25 with several
On material rotating plate 24；The two ends of transverse support bar 25 are fixed on chain drive component；Wherein, material rotating plate 24 is trapezoidal plate, and
It is inclined in transverse support bar 25, the angle between material rotating plate 24 and 25 axis of transverse support bar is 0～45 °, preferably
30 °, the material rotating plate 24 in same transverse support bar 25 is axisymmetricly distributed.
Transverse support bar 25 is parallel with upper strata hot air distribution plate 9, and on 24 lower surface of material rotating plate and upper strata hot air distribution plate 9
The distance between end face is 10-50mm, preferably 30mm.
Chain drive component include drive chain wheel shaft, driven chain wheel shaft, two be separately positioned on drive chain wheel shaft two ends
Drive sprocket 10 and two driven sprockets 16 for being separately positioned on driven chain wheel shaft two ends, positioned at 10 He of drive sprocket of the same side
Driven sprocket 16 is connected by roller chain 14, is provided with through hole, 25 liang of transverse support bar in the inner links of roller chain 14
End is welded with the fixed plate 23 with through hole, and stirring board component 15 is by the through hole through roller chain 14 and 23 through hole of fixed plate
Be bolted on chain drive component.Wherein, driving means are connected with drive chain wheel shaft, this driving means includes electricity
The driving wheel of machine and motor output shaft connection, the driven pulley connected by belt or chain, driven pulley are fixed on drive chain wheel shaft
On, the driving means for being wherein used for driving the drive chain wheel shaft are prior art, and in this not go into detail.
Stirring board component includes two transverse support bar 25 be arrangeding in parallel, is provided with two through holes on material rotating plate 24, horizontal
Weld to support bar 25 through through hole and with material rotating plate 24.
Lower floor's material pushing mechanism 4 is additionally provided with methods, rack on lower floor's hot air distribution plate 5；Referring to Fig. 4, lower floor's thing
Material delivery device 4 includes the interior helical axis 26 for setting cavity, and helical axis one end is connected with driving means 22, and 26 other end of helical axis sets
It is equipped with and thermal medium（It is preferably steam）The swivel joint 28 of pipeline connection, 26 one end of helical axis are additionally provided with condensed water discharge
Pipe 29 and condensation-water drain 30,28 end of swivel joint are provided with condensation-water drain 30 and are connected with the cavity set in helical axis 26
Steam inlet 31.
The a diameter of 100-500mm of the body of helical axis 26, preferably 300, the spire of helical axis outer surface is some right
Axisymmetric helical blade 27 is welded, and helical blade 27 is 10-30 ° with the central axis angle of 26 body of helical axis, excellent
Elect 20 ° as.
Referring to Fig. 5, be provided with madial wall on the side wall of lower floor's material pushing mechanism both sides lower box 2, madial wall with
The side wall of lower box 2 forms the side heating chamber 32 of sealing, and the two ends of side heating chamber 32 are respectively arranged with steam inlet and steam goes out
Mouthful；Side heating interior is connected with the high-temperature steam of flowing, for carrying out indirectly heat to the material of lower floor's hot air distribution plate.
Wherein, the lower surface of upper strata hot air distribution plate and lower floor's hot air distribution plate is provided with bracing frame 21, bracing frame 21
It is fixed in frame.
The high-temperature flue gas pipeline that air inlet is discharged with coal-fired boiler in power plant is connected；Air outlet is drawn with one after a deduster
Blower fan connects.
During use, wet stock is added on the hot air distribution plate of upper strata through charging aperture, fine grained is carried out fluidised form by hot blast
Change drying, and coarse granule rises under the drive of upper materials delivery device in movement and dries, remove surface water, material（Including
Fine grained and coarse granule）Sent into by intermediate blanking valve 20 in lower dry chamber i.e. lower box 2 through intermediate blanking pipe 19；Material enters
After entering lower floor's hot air distribution plate, further direct convective drying is carried out to material by hot blast, meanwhile, by lower floor's material pusher
Saturated vapor in structure 4 and the conduction heat transfer of metal wall, carry out indirectly heat drying to material, and material is in hot blast and lower floor's thing
Baiting valve is entered in the presence of material delivery device 4 to discharge, condensed water is discharged from central tube；Waste gas after heat exchange is arranged by air outlet
Go out.
The utility model can pass through without the technical characteristic of description or be realized using prior art, will not be described here,
Certainly, described above is not that the utility model is also not limited to the example above to restriction of the present utility model, and this technology is led
Change, remodeling, interpolation or replacement that the those of ordinary skill in domain is made in essential scope of the present utility model, should also belong to
Protection domain of the present utility model.
Claims (10)
1. a kind of brown coal fluidized bed dryer, including frame and the casing being sealingly disposed in around the frame, it is characterised in that
The casing includes upper box lid, upper box and lower box, is provided with central dividing plate between the upper box and the lower box；Position
In upper strata hot air distribution plate is tiltedly installed with the frame in the top box body, positioned at the central dividing plate and upper strata heat
Air inlet is provided between wind distribution grid on the top box body sidewall, is provided with air outlet on the side wall of the upper box lid；It is located at
Lower floor's hot air distribution plate is tiltedly installed with the frame in the nowel body, described below lower floor's hot air distribution plate
Air inlet is provided with nowel body sidewall, between lower floor's hot air distribution plate and the central dividing plate, is provided with air-out
Mouthful；The air inlet is connected with high-temperature flue gas pipeline；
Described upper box one end is provided with charging aperture, arranges on upper strata hot air distribution plate described in the side relative with the charging aperture
There is middle discharging opening, on lower floor's hot air distribution plate described in described charging aperture the same side, be provided with discharging opening；
The upper strata hot air distribution plate and lower floor's hot air distribution plate all offer inclined channel, and the percent opening of the inclined channel is
2%-25%, a diameter of 1-4mm of the inclined channel, the inclined channel are in 10-20 ° of angle with horizontal direction.
2. brown coal fluidized bed dryer according to claim 1, it is characterised in that the upper strata hot air distribution plate is with material
Moving direction is downward-sloping to be arranged in the frame, and the upper strata hot air distribution plate is horizontal by 2-4 ° of angle.
3. brown coal fluidized bed dryer according to claim 1, it is characterised in that the charging aperture is provided with inlet valve,
The middle discharging opening is provided with the intermediate blanking pipe with intermediate blanking valve, and the discharging opening is provided with outlet valve.
4. the brown coal fluidized bed dryer according to any one of claim 1-3, it is characterised in that positioned at the upper strata hot blast
Upper materials delivery device is provided with above distribution grid in the frame；
The upper materials delivery device includes chain drive component and some groups are arranged on the chain drive component turns over
Flitch component, the stirring board component include that transverse support bar is uniformly fixed on the stirring in the transverse support bar with several
Plate；The two ends of the transverse support bar are fixed on the chain drive component；
The transverse support bar is parallel with the upper strata hot air distribution plate, and the material rotating plate lower surface is divided with the upper strata hot blast
The distance between fabric swatch upper surface is 10-50mm.
5. brown coal fluidized bed dryer according to claim 4, it is characterised in that the material rotating plate is trapezoidal plate and inclination
It is arranged in the transverse support bar, the angle between the material rotating plate and the cross-brace rod axis is 0～45 °, is located at
The material rotating plate in the same transverse support bar is axisymmetricly distributed.
6. brown coal fluidized bed dryer according to claim 4, it is characterised in that the chain drive component includes to drive
Sprocket shaft, driven chain wheel shaft, two drive sprockets for being separately positioned on the drive chain wheel shaft two ends and two are separately positioned on
The driven sprocket at the driven chain wheel shaft two ends, passes through roller chain positioned at the drive sprocket of the same side and the driven sprocket
Bar connects, and is provided with through hole in the inner links of the roller chain, and the transverse support bar two ends are welded with through hole
Fixed plate, the stirring board component is by being bolted to institute through the through hole of the roller chain and the fixed plate through hole
State on chain drive component.
7. brown coal fluidized bed dryer according to claim 4, it is characterised in that the stirring board component includes that two are put down
The transverse support bar that row is arranged, is provided with two through holes on the material rotating plate, the transverse support bar passes through the through hole
And with the stirring plate weld.
8. brown coal fluidized bed dryer according to claim 4, it is characterised in that on lower floor's hot air distribution plate
Lower floor's material pushing mechanism is additionally provided with Fang Suoshu frame；Lower floor's material pushing mechanism includes the interior spiral for setting cavity
Axle, described helical axis one end are connected with driving means, and the helical axis other end is provided with the rotation being connected with heat medium pipeline
Joint, described helical axis one end are additionally provided with condensed water discharge pipe.
9. brown coal fluidized bed dryer according to claim 8, it is characterised in that a diameter of 100- of the helical axis
500mm, the spire of the helical axis outer surface be some axisymmetric helical blade is welded, the helical blade with
The central axis angle of the helical axis is 10-30 °.
10. the brown coal fluidized bed dryer according to any one of claim 1-3, it is characterised in that the air inlet and electricity
The high-temperature flue gas pipeline connection that factory's coal-burning boiler is discharged；The air outlet is connected with an air-introduced machine after a deduster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621000709.2U CN206001802U (en) | 2016-08-31 | 2016-08-31 | A kind of brown coal fluidized bed dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621000709.2U CN206001802U (en) | 2016-08-31 | 2016-08-31 | A kind of brown coal fluidized bed dryer |
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| Publication Number | Publication Date |
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| CN206001802U true CN206001802U (en) | 2017-03-08 |
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ID=58195099
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| CN201621000709.2U Active CN206001802U (en) | 2016-08-31 | 2016-08-31 | A kind of brown coal fluidized bed dryer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116376579A (en) * | 2023-04-21 | 2023-07-04 | 宁夏大学 | Charcoal preparation facilities based on charcoal gas coproduction |
-
2016
- 2016-08-31 CN CN201621000709.2U patent/CN206001802U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116376579A (en) * | 2023-04-21 | 2023-07-04 | 宁夏大学 | Charcoal preparation facilities based on charcoal gas coproduction |
| CN116376579B (en) * | 2023-04-21 | 2024-02-13 | 宁夏大学 | Charcoal preparation facilities based on charcoal gas coproduction |
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