CN206310878U - A kind of biomass fuel drying unit - Google Patents
A kind of biomass fuel drying unit Download PDFInfo
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- CN206310878U CN206310878U CN201621316021.5U CN201621316021U CN206310878U CN 206310878 U CN206310878 U CN 206310878U CN 201621316021 U CN201621316021 U CN 201621316021U CN 206310878 U CN206310878 U CN 206310878U
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- biomass fuel
- multiloop
- dryer
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- fuel
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Abstract
A kind of biomass fuel drying unit, belongs to drying plant field, and it is mainly comprising air blower, air preheater, screw feeder, multiloop biomass fuel dryer, fuel output belt, sack cleaner and air-introduced machine.Wherein, multiloop biomass fuel dryer includes air inlet, charging aperture, discharging opening and air outlet, air preheater is connected with air blower, air preheater is connected with the air inlet of multiloop biomass fuel dryer, screw feeder is connected with the charging aperture of multiloop biomass fuel dryer, fuel output belt is connected with the discharging opening of multiloop biomass fuel dryer, sack cleaner is connected with the air outlet of multiloop biomass fuel dryer, and air-introduced machine is connected with the sack cleaner.Both ensure the uniformity of feed, in turn ensure that the sealing of dryer.The utility model can be controlled to dry the moisture for exerting oneself and drying post fuel by controlling the rate flow of dryer fuel, and good drying effect is exerted oneself and disclosure satisfy that production needs.
Description
Technical field
The utility model is related to a kind of biomass fuel drying unit, category drying plant field.
Background technology
In the direct combustion power generation field of biomass, the operation and economy of the moisture content of biomass fuel to whole power plant
Play an important role.The moisture content of biomass fuel is influenceed larger by Seasonal, is given birth to particularly at southern area, rainy season
The moisture content of biomass fuel is up to 50%-60%.Too high moisture is unfavorable for the pretreatment and conveying of fuel, meeting in biomass fuel
Feeding system is caused to block.The too high fuel fire of moisture content is difficult, increased boiler operatiopn difficulty.Moisture enters stove with fuel
In thorax, boiler efficiency can be not only reduced, can also increase exhaust gas volumn, cause air-introduced machine power consumption excessive.In addition, moisture is also received to low temperature
The formation of hot face corrosion creates external condition.Natural drying can reduce the moisture content of fuel, but have that efficiency is low, low temperature
With impracticable shortcoming under the conditions of rainy season.At present, the dryer generally existing efficiency of in the market is low, operating cost is high lacks
Point.
The content of the invention
To overcome the drawbacks described above of existing biomass fuel drying unit, the utility model provides a kind of efficient, energy-conservation, ring
The biomass fuel drying unit of guarantor, is used to reduce the moisture content of biomass fuel, lifts the stability and economy of boiler operatiopn
Property.
To solve the technical problem, the utility model adopts a kind of biomass fuel drying unit of proposition, and it utilizes boiler to arrange
Waste heat in the flue gas put dries biomass fuel, and including air blower, air preheater, screw feeder, multiloop life
Biomass fuel dryer, fuel output belt, sack cleaner and air-introduced machine.Wherein, multiloop biomass fuel dryer bag
Air inlet, charging aperture, discharging opening and air outlet are included, air preheater is connected with air blower, air preheater is biological with multiloop
The air inlet connection of matter fuel dryer, screw feeder is connected with the charging aperture of multiloop biomass fuel dryer, fuel
Output belt is connected with the discharging opening of multiloop biomass fuel dryer, and sack cleaner is dried with multiloop biomass fuel
The air outlet connection of machine, air-introduced machine is connected with the sack cleaner.
Further, shirt rim belt feeder is disposed with inside multiloop biomass fuel dryer, shirt rim belt feeder is by variable-frequency electric
Machine drives.Circulation speed of the fuel inside multiloop biomass fuel dryer is controlled by adjusting the rotating speed of variable-frequency motor
Degree, so as to reach the purpose that control is exerted oneself with moisture content.
Further, air preheater is connected with flue, and the flue gas in flue has waste heat, and air preheater by pipe
Road is connected with the air inlet of multiloop biomass fuel dryer.Air preheater heats air using fume afterheat, reaches
The purpose of energy-conservation, is the hot blast source inside multiloop biomass fuel dryer.
Further, sealing device is provided between the charging aperture of screw feeder and multiloop biomass fuel dryer,
Ensure that the sealing of charging aperture.Meanwhile, screw feeder also assures that the uniformity of feed.
Further, the discharging opening of multiloop biomass fuel dryer is additionally provided with flapper, it is ensured that discharging opening it is close
Feng Xing.
In the course of work of whole device, air is exchanged heat by air preheater with the high-temperature flue gas in flue, so that
Absorb the waste heat in flue gas.Air preheater can provide 50 DEG C -60 DEG C of hot-air, by short pipeline and multiloop biomass
The air inlet of fuel dryer is connected.Air after preheating enters multiloop biomass fuel in the presence of air blower from air inlet
Material dryer, and with the equidirectional circulation of fuel.Biomass fuel enters screw feeder by belt conveyor, then by screw feed
Machine is entered in multiloop biomass fuel dryer by charging aperture.Screw feeder not only ensures the uniformity that fuel feeds,
And the material that fuel is formed in feeding machine seals the sealing that ensure that dryer.Fuel is in multiloop biomass fuel dryer
Neutralize hot-air synchronously to circulate, take full advantage of heat convection principle, dried by multiloop biomass fuel after 3 times overturn
Incoming fuel output belt after the flapper that the discharge outlet of dry machine is set.Hot-air passes through multiloop in the presence of air-introduced machine
After the air outlet of biomass fuel dryer is discharged from multiloop biomass fuel dryer, by sack cleaner heel row
It is empty.The dust and lighter fuel particle separated through sack cleaner are emitted into fuel output belt.In actual motion,
Fuel can be controlled shirt rim belt in speed and multiloop biomass fuel dryer is fed according to water-in-fuel rate situation
Rotating speed, so as to obtain more dry biomass fuel.
The utility model proposes biomass fuel drying unit can reduce biomass fuel moisture 10%-20%.Fuel dries
Moisture content is uniform after dry, disclosure satisfy that quantity-produced demand；The moisture content and drying capacity for drying post fuel can be adjusted；And
And the utility model proposes biomass fuel drying unit can utilize fume afterheat, and simple process has been carried out to tail gas,
The purpose of energy-conserving and environment-protective is reached；The equidirectional circulation in drying unit of hot-air and biomass fuel, fuel is in circulation process
In progressively dry, and in dryer fuel have an opportunity upset, take full advantage of heat convection principle, drying effect is good.
Brief description of the drawings
It should be understood that in the utility model, except in the case of clearly contradicted or incompatible, whole features, deformation side
Formula and/or specific embodiment can be combined according to multiple combination.
By reading the following specific embodiment as non-limitative illustration, and with reference to accompanying drawing, it is of the present utility model other
Feature and advantage will be evident that：
Fig. 1 is the structural representation of the biomass fuel drying unit according to a preferred embodiment of the present utility model.
Specific embodiment
It should be understood that above-mentioned accompanying drawing and not true to scale, and be only used for illustrating the utility model general principle
The sketch of various preferred features.Design feature disclosed in the utility model, such as size, direction, positioning and shape are according to tool
Body application and use environment determine.
The utility model is described in detail with reference to embodiment and accompanying drawing.In the accompanying drawings, identical reference number is
Refer to of the present utility model identical or equivalence element in all of the figs.
Fig. 1 is shown according to one preferred embodiment of biomass fuel drying unit of the present utility model.
In this embodiment, biomass fuel drying unit includes：
- air blower 1, for driving air to be blown into from air preheater 2 in multiloop biomass fuel dryer 4,
- air preheater 2, it is connected with flue, for making the preheating in air absorption flue gas, so as to reach preheated air
Effect,
- screw feeder 3, for biomass fuel to be uniformly delivered in multiloop biomass fuel dryer 4,
- multiloop biomass fuel dryer 4, it includes air inlet, charging aperture, discharging opening and air outlet, and in it
Portion is provided with the shirt rim belt feeder for conveying fuel,
- fuel exports belt, for being exported the fuel after drying is defeated from multiloop biomass fuel dryer 4,
- flapper 5, its discharge outlet for being arranged on sealing multiloop biomass fuel dryer 4, it is ensured that discharging opening
Sealing,
- sack cleaner 6, for separating the dust in air and lighter fuel particle, and
- air-introduced machine 7, for hot-air to be discharged from the air outlet of multiloop biomass fuel dryer 4.
Wherein, air preheater 2 is connected with air blower 1, and air preheater 2 is dried by pipeline with multiloop biomass fuel
The air inlet connection of dry machine 4, screw feeder 3 is connected with the charging aperture of multiloop biomass fuel dryer 4, fuel output skin
Band is connected with the discharging opening of multiloop biomass fuel dryer 4, sack cleaner 6 and multiloop biomass fuel dryer 4
Air outlet connection, air-introduced machine 7 is connected with the sack cleaner 6.
Wherein, the shirt rim belt feeder in multiloop biomass fuel dryer 4 is driven by variable-frequency motor.By adjusting frequency conversion
The rotating speed of motor controls rate flow of the fuel inside multiloop biomass fuel dryer, so as to reach control exert oneself and
The purpose of moisture content.
Wherein, sealing device is provided between the charging aperture of screw feeder 3 and multiloop biomass fuel dryer 4,
Ensure that the sealing of charging aperture.
Fig. 1 also show the course of work in whole device.
Firstly, since air preheater 2 is connected with flue and high-temperature flue gas is full of in flue so that air passes through air
Preheater 2 exchanges heat with the high-temperature flue gas in flue, so that the waste heat in absorbing flue gas, realizes preheating of air, air preheater 2
50 DEG C -60 DEG C of hot-air can be provided.
Then, due to, air preheater 2 is connected by short pipeline with the air inlet of multiloop biomass fuel dryer 4,
Air after preheating enters in multiloop biomass fuel dryer 4 in the presence of air blower 1 from air inlet.
Meanwhile, biomass fuel enters screw feeder 3 by belt conveyor, then passes through charging aperture by screw feeder 3
Into in multiloop biomass fuel dryer 4.Screw feeder 3 not only ensures the uniformity that fuel feeds, and fuel exists
The material envelope formed in screw feeder ensure that the sealing of dryer.
Then, fuel synchronously circulates in multiloop biomass fuel dryer 4 with hot-air, takes full advantage of convection current and changes
Pyrogen is managed carries out heat exchange with hot-air, after 3 times overturn so that the moisture in biomass fuel is dried by hot-air, dries
Fuel after dry is by incoming fuel output skin after the flapper 5 that the discharge outlet of multiloop biomass fuel dryer 4 is set
Band.
Finally, complete the hot-air after heat exchange and pass through multiloop biomass fuel dryer 4 in the presence of air-introduced machine 7
Air outlet discharged from multiloop biomass fuel dryer 4 after, emptied by sack cleaner 6.Wherein, it is residual in hot-air
The dust and lighter fuel particle for staying are emitted into fuel output belt after being separated through sack cleaner 6.
In actual motion, fuel can be controlled to feed speed and multiloop biomass fuel according to water-in-fuel rate situation
The rotating speed of shirt rim belt in material dryer, so as to obtain more dry biomass fuel.
Above example to scope of the present utility model only as an example, do not play restriction effect.Those skilled in the art
On this basis, can be in the utility model scope of the claims, it is contemplated that to other realities that can realize identical function
Apply mode.
Those skilled in the art grasp various embodiments and various deformation and improvement.Especially, need it is clear that, except obvious
Contradiction or it is incompatible except in the case of, features described above of the present utility model, mode of texturing and/or specific embodiment can be tied mutually
Close.All these embodiments and deformation and improvement belong to protection domain of the present utility model.
Claims (5)
1. a kind of biomass fuel drying unit, it is characterised in that：Including air blower 1, air preheater 2, screw feeder 3,
Multiloop biomass fuel dryer 4, fuel output belt, sack cleaner 6 and air-introduced machine 7, wherein, the multiloop is biological
Matter fuel dryer 4 includes air inlet, charging aperture, discharging opening and air outlet, and the air preheater 2 connects with the air blower 1
Connect, the air preheater 2 is connected with the air inlet of the multiloop biomass fuel dryer 4, the screw feeder 3 with
The charging aperture connection of the multiloop biomass fuel dryer 4, the fuel exports belt and the multiloop biomass fuel
Expect the discharging opening connection of dryer 4, the sack cleaner 6 connects with the air outlet of the multiloop biomass fuel dryer 4
Connect, the air-introduced machine 7 is connected with the sack cleaner 6.
2. the biomass fuel drying unit according to claim 1, it is characterised in that the multiloop biomass fuel
Shirt rim belt feeder is disposed with inside dryer 4, the shirt rim belt feeder is driven by variable-frequency motor.
3. the biomass fuel drying unit according to claim 1, it is characterised in that the air preheater 2 and flue
Connection, the flue gas in the flue has waste heat, and the air preheater 2 passes through pipeline and the multiloop biomass fuel
Expect the air inlet connection of dryer 4.
4. the biomass fuel drying unit according to claim 1, it is characterised in that the screw feeder 3 and described
Sealing device is provided between the charging aperture of multiloop biomass fuel dryer 4.
5. the biomass fuel drying unit according to claim 1, it is characterised in that the multiloop biomass fuel
The discharging opening of dryer 4 is additionally provided with flapper 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621316021.5U CN206310878U (en) | 2016-12-02 | 2016-12-02 | A kind of biomass fuel drying unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621316021.5U CN206310878U (en) | 2016-12-02 | 2016-12-02 | A kind of biomass fuel drying unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206310878U true CN206310878U (en) | 2017-07-07 |
Family
ID=59249693
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621316021.5U Active CN206310878U (en) | 2016-12-02 | 2016-12-02 | A kind of biomass fuel drying unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210910A (en) * | 2018-07-27 | 2019-01-15 | 浙江浙能富兴燃料有限公司 | A method of utilizing coal-burning power plant's Secondary Air dried biomass |
| CN109297291A (en) * | 2018-09-13 | 2019-02-01 | 大唐淮北发电厂 | A kind of biological energy power plant fuel dryer device |
| CN109974395A (en) * | 2017-12-27 | 2019-07-05 | 山东琦泉能源科技有限公司 | Biomass material drying means |
-
2016
- 2016-12-02 CN CN201621316021.5U patent/CN206310878U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974395A (en) * | 2017-12-27 | 2019-07-05 | 山东琦泉能源科技有限公司 | Biomass material drying means |
| CN109210910A (en) * | 2018-07-27 | 2019-01-15 | 浙江浙能富兴燃料有限公司 | A method of utilizing coal-burning power plant's Secondary Air dried biomass |
| CN109297291A (en) * | 2018-09-13 | 2019-02-01 | 大唐淮北发电厂 | A kind of biological energy power plant fuel dryer device |
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