CN108917330A - The biomass material drying unit of burning formula inside and outside a kind of efficient two backhauls flue gas - Google Patents
The biomass material drying unit of burning formula inside and outside a kind of efficient two backhauls flue gas Download PDFInfo
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- CN108917330A CN108917330A CN201810997572.XA CN201810997572A CN108917330A CN 108917330 A CN108917330 A CN 108917330A CN 201810997572 A CN201810997572 A CN 201810997572A CN 108917330 A CN108917330 A CN 108917330A
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- flue gas
- heat exchange
- exchange layer
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- 239000000463 material Substances 0.000 title claims abstract description 90
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 239000003546 flue gas Substances 0.000 title claims abstract description 74
- 239000002028 Biomass Substances 0.000 title claims abstract description 59
- 238000001035 drying Methods 0.000 title claims abstract description 51
- 235000019504 cigarettes Nutrition 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims description 24
- 238000007789 sealing Methods 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 230000008676 import Effects 0.000 description 3
- 238000000643 oven drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012913 prioritisation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000005439 thermosphere Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001535 kindling effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
- F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
- F26B11/0404—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis with internal subdivision of the drum, e.g. for subdividing or recycling the material to be dried
- F26B11/0413—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis with internal subdivision of the drum, e.g. for subdividing or recycling the material to be dried the subdivision consisting of concentric walls, e.g. multi-pass or recirculation systems; the subdivision consisting of spiral-shaped walls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/14—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam, e.g. inert gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/14—Chambers, containers, receptacles of simple construction
- F26B25/16—Chambers, containers, receptacles of simple construction mainly closed, e.g. drum
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Drying Of Solid Materials (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The biomass material drying unit of burning formula inside and outside a kind of efficient two backhauls flue gas,It is related to biomass drying technology field,Its structure includes the outer heat exchange layer and interior heat exchange layer that can be rotated together,Outer heat exchange layer is made of inner cylinder and outer barrel,Interior heat exchange layer is by feed barrel,Central cylinder,Inner cylinder is constituted,Outer barrel,Inner cylinder and central cylinder are set gradually from the outside to the core,Outer barrel,Inner cylinder and central cylinder are coaxial arrangement,Outer heat exchange layer is connected with central cylinder by connector,Connector is equipped with material channel,Outer heat exchange layer is equipped with high-temperature flue gas entry,The flue gas delivery outlet of central cylinder is connected with material cigarette distributor,Biomass material of the invention enters interior heat exchange layer from material inlet,High-temperature flue gas enters outer heat exchange layer from the high-temperature flue gas entry of outer heat exchange layer front end,High-temperature flue gas enters back into central cylinder after the drying heat exchange of outer heat exchange layer and dries to the biomass material in interior heat exchange layer,It may make the more efficient of drying,And it is safe and reliable.
Description
Technical field
The present invention relates to biomass drying technology fields, more particularly to the life for burning formula inside and outside a kind of efficient two backhauls flue gas
Raw material of substance drying unit.
Background technique
Traditional biomass raw material stoving device mostly uses a pass rotary drum or the box flue gas oven drying method of more backhaul chain belts, and one time
Journey oven drying method exhaust gas temperature is higher, and drying efficiency is low, and biomass moisture content is still difficult to reach standard requirements after drying.While one
It is directly mixed in roller or cabinet that pass rotary drum or the box flue gas oven drying method of more backhaul chain belts are all made of flue gas and biomass material
It closing, the Mars in flue gas is easy to be entrained in biomass material, and cause biomass material easily to catch fire, once kindling is difficult to control
System, or even there is safety accident.
Traditional biomass raw material stoving device mostly uses flue gas and drying moisture that cannot be independently arranged in a space, flue gas
With moisture absorption a large amount of flue gas heat of the drying moisture after a space can make drying, the heat that flue gas is efficiently used
Amount is reduced, and drying efficiency is low, and drying cost is higher, and the partial pressure increase of vapor seriously affects heat exchange, is unfavorable for biology
The evolution of moisture in matter, moisture content is not easy to control after biomass drying, dries less economical.
The heat exchange efficiency of traditional biomass raw material stoving device is low, and heat utilization rate is low.
Traditional biomass raw material stoving device furnace body uneven heating, seriously affects dries quantity.
Biomass transportation system mostly uses elephant trunk and has axis helical feed in traditional biomass raw material stoving device, due to life
Raw material of substance poor fluidity and easily winding, the above mode of movement have feeding to get stuck problem, and maintenance load is very big.
For the disadvantage mentioned above of existing biomass material drying unit, many experts and scholars propose biomass material drying
The improvement of device and prioritization scheme, however, these are improved and prioritization scheme is mostly to keep traditional biomass material drying dress
It sets and the simple structure improved, fail to be directed to biomass material drying unit is made to biomass material drying unit in main structure
It is thoroughly reformed and is created, even many new problems are introduced in some developments, so not very practical.
Summary of the invention
It is provided inside and outside the efficient two backhauls flue gas of one kind it is an object of the invention to avoid shortcoming in the prior art
The biomass material drying unit of burning formula, the drying of the biomass material drying unit of burning formula inside and outside the efficient two backhauls flue gas
It is more efficient, securely and reliably.
The purpose of the present invention is achieved through the following technical solutions：
A kind of biomass material drying unit of burning formula inside and outside efficient two backhauls flue gas is provided, outer is changed including what can be rotated together
Thermosphere and interior heat exchange layer, the outer heat exchange layer are made of inner cylinder and outer barrel, and the interior heat exchange layer body is by feed barrel, center
Cylinder and inner cylinder are constituted, and outer barrel, inner cylinder and central cylinder are set gradually from the outside to the core, outer barrel, inner cylinder and center
Cylinder is coaxial arrangement, and the outer heat exchange layer is equipped with high-temperature flue gas entry, and the outer heat exchange layer and central cylinder pass through connector
Exhaust gases passes be connected, the connector is equipped with material channel, the flue gas delivery outlet of the central cylinder and material cigarette distributor
It is connected.
Wherein, the connector includes multiple exhaust gases passes and multiple material channels, and exhaust gases passes and material channel replace
Setting, multiple exhaust gases passes are respectively communicated with outer heat exchange layer and central cylinder, and multiple material channels are respectively communicated with interior heat exchange layer
Feed end and discharge end.
Wherein, the exhaust gases passes are made of two arc panels.
Wherein, the material cigarette distributor includes closed cylinder, and the closed cylinder is equipped with partition, and the partition will close cylinder
Body is divided into moisture space and low-temperature flue gas space, and the moisture space is exported equipped with moisture, and the low-temperature flue gas space is equipped with
Low-temperature flue gas outlet.
Wherein, lead to the first bag filter for the moisture outlet, and the second bag-type dust is led in the low-temperature flue gas outlet
Device.
Wherein, it is connected between the interior heat exchange layer and material cigarette distributor by sealing device.
Wherein, the sealing device uses labyrinth seal structure.
Wherein, the biomass material drying unit includes Shaftless screw conveyor, and the Shaftless screw conveyor is equipped with
Material inlet and material outlet, the material outlet lead to the feed barrel of the interior heat exchange layer.
Wherein, the inner wall of the inner cylinder is disposed with lifting blade along the length direction of interior heat exchange layer.
Wherein, the outer wall of the central cylinder is disposed with fin along the length direction of interior heat exchange layer.
Beneficial effects of the present invention：The biomass material of burning formula dries dress inside and outside the efficient two backhauls flue gas of one kind of the invention
It sets, including the outer heat exchange layer and interior heat exchange layer that can be rotated together, the outer heat exchange layer is made of inner cylinder and outer barrel, described
Interior heat exchange layer is made of feed barrel, inner cylinder and central cylinder, and outer barrel, inner cylinder and central cylinder are successively set from the outside to the core
It sets, outer barrel, inner cylinder and central cylinder are coaxial arrangement, and the outer heat exchange layer is connected with central cylinder by connector,
The connector is equipped with material channel, and the outer heat exchange layer is equipped with high-temperature flue gas entry, the flue gas delivery outlet of the central cylinder
It is connected with material cigarette distributor, biomass material of the invention enters the charging of interior heat exchange layer from the material outlet of screw conveyor
Cylinder, high-temperature flue gas enter outer heat exchange layer from high-temperature flue gas entry, and high-temperature flue gas is after the drying heat exchange of outer heat exchange layer using even
The exhaust gases passes for connecing device, which enter central cylinder, dries the biomass material in interior heat exchange layer, may make heat utilization rate
Height, drying it is more efficient, and material channel on connector and exhaust gases passes separate, so that whole process high temperature flue gas
It is not directly contacted with biomass material, avoids the ignition issues of biomass material during the drying process, securely and reliably.
Detailed description of the invention
Invention is described further using attached drawing, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to the following drawings
Its attached drawing.
Fig. 1 is the structural representation of the biomass material drying unit of burning formula inside and outside the efficient two backhauls flue gas of one kind of the invention
Figure.
Fig. 2 is the cross-sectional view in Fig. 1 at the A-A of connector.
Fig. 3 is the cross-sectional view at the B-B of the material cigarette distributor in Fig. 1.
Interior heat exchange layer 1, inner cylinder 101, feed barrel 102, central cylinder 2, outer heat exchange layer 3, outer barrel 301, high temperature cigarette
Gas entrance 31, hot-blast stove 32, connector 4, material channel 41, exhaust gases passes 42, arc panel 421, material cigarette distributor 5, closing cylinder
Body 51, partition 52, moisture space 53, moisture import 531, moisture outlet 532, low-temperature flue gas space 54, low-temperature flue gas outlet 55,
Sealing device 6, Shaftless screw conveyor 7, material inlet 71, material outlet 72, lifting blade 8, fin 9, spoiler 10.
Specific embodiment
The invention will be further described with the following Examples.
The biomass material drying unit of burning formula inside and outside the efficient two backhauls flue gas of one kind of the present embodiment, such as Fig. 1 to Fig. 3 institute
Show, including the outer heat exchange layer 3 and interior heat exchange layer 1 that can be rotated together, the outer heat exchange layer is by inner cylinder 101 and outer barrel 301
It constitutes, the interior heat exchange layer 1 is made of raw material cylinder 102, inner cylinder 101 and central cylinder 2, outer barrel 301, inner cylinder 101
It is set gradually from the outside to the core with central cylinder 2, outer barrel 301, inner cylinder 101 and central cylinder 2 are coaxial arrangement, described to change outside
Thermosphere 3 is equipped with high-temperature flue gas entry 31, the outer heat exchange layer 3 and central cylinder 2 and is connected by the exhaust gases passes 42 of connector 4
Logical, the connector 4 is equipped with material channel 41, the flue gas delivery outlet of the central cylinder 2 and the low-temperature flue gas of material cigarette distributor 5
Air 54 is connected.
The biomass material of the present embodiment enters the feed barrel of interior heat exchange layer 1 from the material outlet 72 of screw conveyor 7
102, the high-temperature flue gas from hot-blast stove 32 enters outer heat exchange layer 3 from high-temperature flue gas entry 31, and high-temperature flue gas is through outer heat exchange layer 3
Enter back into central cylinder 2 after drying heat exchange biomass material dried, the high-temperature flue gas of outer heat exchange layer 3 can also be to biology
Matter raw material is preheated, and drying efficiency is improved.
The temperature of high-temperature flue gas import controls in 450 degree of -500 degree section, and high-temperature flue gas is in outer heat exchange layer（It is first time
Journey）With in central cylinder（For the second backhaul）Referred to as two backhauls, two backhauls drying can be effectively reduced exhaust gas temperature, guarantee row
100 degree of smoke temperature degree hereinafter, may make that heat utilization rate is high, drying it is more efficient.
Material channel and exhaust gases passes on the connector of this biomass material drying unit separate, using flue gas and biology
The stoving process that matter raw material is not directly contacted with avoids the ignition issues of biomass material during the drying process, securely and reliably.
After high-temperature flue gas enters central cylinder 2, the direction of advance of flow direction and biomass is on the contrary, can further improve
Heat transfer effect.
Wherein, the connector 4 includes six exhaust gases passes 42 and six material channels 41, and exhaust gases passes 42 and raw material are logical
Road 41 is arranged alternately, and six exhaust gases passes 42 are respectively communicated with central cylinder 2 and outer heat exchange layer 3, and six material channels 41 divide
Not Lian Tong in heat exchange layer 1 feed end and discharge end, six exhaust gases passes 42 enter high-temperature flue gas from outer heat exchange layer 3
To central cylinder 2, six material channels 41 make biomass material that can be transported to discharge end from the feed end of interior heat exchange layer 1.
Wherein, the exhaust gases passes 42 are welded by two arc panels 421, and arc panel 421 has adequately expanded space,
Avoid the high temperature problem of Cracking of traditional straight flue.
Wherein, the material cigarette distributor 5 includes closed cylinder 51, and the closed cylinder 51 is equipped with partition 52, the partition
Closed cylinder 51 is divided into moisture space 53 and low-temperature flue gas space 54, high-temperature flue gas and moisture by 52（Dry steam）Point storehouse is set
It sets, the autonomous channel of oneself is arranged in moisture, the heat of flue gas is not absorbed, and can reduce the partial pressure of interior heat exchange layer vapor,
It is more conducive to the evolution of moisture in biomass material, indirectly improves dries quantity and efficiency.
The moisture space 53 is equipped with moisture import 531 and moisture outlet 532, and the low-temperature flue gas space 54 is equipped with low temperature
Exhanst gas outlet 55, lead to the first bag filter for the moisture outlet 532, and the low-temperature flue gas outlet 55 is led to the second cloth bag and removed
Dirt device, moisture after drying（Vapor）The first bag filter is sent into moisture space 53, then by moisture outlet 532（Figure
In be not shown）, low-temperature flue gas then enters low-temperature flue gas space 54, passes through low-temperature flue gas outlet 55 and enters the second bag filters
（It is not shown in the figure）.
Wherein, there are gap between the interior heat exchange layer 1 and material cigarette distributor 5, expect that cigarette distributor 5 is adopted with interior heat exchange layer 1
It is flexibly connected with gap, material cigarette distributor 5 is fixed, and interior heat exchange layer 1 rotates, and gap location is sealed by sealing device 6.
Wherein, the sealing device 6 uses labyrinth seal structure, and the sealing of this sealing structure is tight, easy to repair.
Wherein, the biomass material drying unit includes Shaftless screw conveyor 7, and the Shaftless screw conveyor 7 is set
There are material inlet 71 and material outlet 72, the material outlet 72 leads to the feed barrel 102 of the interior heat exchange layer 1, shaftless spiral shell
Rotation conveying avoids the winding of biomass material and the problem that gets stuck, and reduces a large amount of maintenance load.
Wherein, the inner wall of the inner cylinder 101 is disposed with lifting blade 8 along the length direction of interior heat exchange layer 1, and lifting blade 8 is adopted
With not equiangularly arranged mode, biomass is raised and is fallen from different perspectives by lifting blade 8 during transportation, falls in central tube
The different orientation of the outer wall of body 2 and interior heat exchange layer 1 can avoid the accumulation and uneven heating of biomass, fully ensure that interior temperature
The equilibrium of field, it is ensured that higher biomass drying effect.
Wherein, the outer wall of the central cylinder 2 is disposed with fin 9 along the length direction of interior heat exchange layer 1, and fin 9 can be strengthened
Heat exchange, and biomass material is disturbed.
Wherein, spoiler 10 is equipped between outer barrel 301 and inner cylinder 101, spoiler 10 carries out the rotation direction flowing of flue gas
Enhanced heat exchange carries out flash baking to biomass material.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although explaining in detail referring to preferred embodiment to the present invention, those skilled in the art are answered
Work as understanding, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (10)
1. the biomass material drying unit of burning formula inside and outside a kind of efficient two backhauls flue gas, it is characterised in that：Including can be together
The outer heat exchange layer and interior heat exchange layer of rotation, the outer heat exchange layer are made of inner cylinder and outer barrel, and the interior heat exchange layer is by feeding
Cylinder, central cylinder and inner cylinder are constituted, and outer barrel, inner cylinder and central cylinder are set gradually from the outside to the core, outer barrel, inner cylinder
Body and central cylinder are coaxial arrangement, and the outer heat exchange layer front end is equipped with high-temperature flue gas entry, the outer heat exchange layer and central tube
Body is connected by the exhaust gases passes of connector, and the connector is equipped with material channel, the flue gas delivery outlet of the central cylinder
It is connected with material cigarette distributor.
2. the biomass material drying unit of burning formula, feature inside and outside a kind of efficient two backhauls flue gas as described in claim 1
It is：The connector includes multiple exhaust gases passes and multiple material channels, and exhaust gases passes and material channel are arranged alternately, multiple
The exhaust gases passes are respectively communicated with central cylinder and outer heat exchange layer, multiple material channels be respectively communicated with interior heat exchange layer feed end and
Discharge end.
3. the biomass material drying unit of burning formula, feature inside and outside a kind of efficient two backhauls flue gas as claimed in claim 2
It is：The exhaust gases passes are made of two arc panels.
4. the biomass material drying unit of burning formula, feature inside and outside a kind of efficient two backhauls flue gas as described in claim 1
It is：The material cigarette distributor includes closed cylinder, and the closed cylinder is equipped with partition, and closed cylinder is divided by the partition
Moisture space and low-temperature flue gas space, the moisture space are exported equipped with moisture, and the low-temperature flue gas space is equipped with low-temperature flue gas
Outlet.
5. the biomass material drying unit of burning formula, feature inside and outside a kind of efficient two backhauls flue gas as claimed in claim 4
It is：Lead to the first bag filter for the moisture outlet, and the second bag filter is led in the low-temperature flue gas outlet.
6. the biomass material drying unit of burning formula, feature inside and outside a kind of efficient two backhauls flue gas as described in claim 1
It is：It is connected between the interior heat exchange layer and material cigarette distributor by sealing device.
7. the biomass material drying unit of burning formula, feature inside and outside a kind of efficient two backhauls flue gas as described in claim 1
It is：The sealing device uses labyrinth seal structure.
8. the biomass material drying unit of burning formula, feature inside and outside a kind of efficient two backhauls flue gas as described in claim 1
It is：The biomass material drying unit includes Shaftless screw conveyor, and the Shaftless screw conveyor is equipped with material inlet
And material outlet, the material outlet lead to the feed barrel of the interior heat exchange layer.
9. the biomass material drying unit of burning formula, feature inside and outside a kind of efficient two backhauls flue gas as described in claim 1
It is：The inner wall of the inner cylinder is disposed with lifting blade along the length direction of interior heat exchange layer.
10. the biomass material drying unit of burning formula, feature inside and outside a kind of efficient two backhauls flue gas as described in claim 1
It is：The outer wall of the central cylinder is disposed with fin along the length direction of interior heat exchange layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810997572.XA CN108917330B (en) | 2018-08-29 | 2018-08-29 | High-efficiency two-pass flue gas internal and external combustion type biomass raw material drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810997572.XA CN108917330B (en) | 2018-08-29 | 2018-08-29 | High-efficiency two-pass flue gas internal and external combustion type biomass raw material drying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108917330A true CN108917330A (en) | 2018-11-30 |
| CN108917330B CN108917330B (en) | 2024-05-14 |
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|---|---|---|---|
| CN201810997572.XA Active CN108917330B (en) | 2018-08-29 | 2018-08-29 | High-efficiency two-pass flue gas internal and external combustion type biomass raw material drying device |
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Cited By (3)
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| CN110455051A (en) * | 2019-09-18 | 2019-11-15 | 济南宇川环保设备有限公司 | A kind of energy-saving roller dryer |
| CN114234583A (en) * | 2022-02-28 | 2022-03-25 | 山东宝阳干燥设备科技有限公司 | High-efficient drying-machine of graphite |
| CN115628607A (en) * | 2022-10-18 | 2023-01-20 | 攀钢集团钛业有限责任公司 | Indirect heat exchange device for drying wet 20-titanium concentrate |
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| Publication number | Publication date |
|---|---|
| CN108917330B (en) | 2024-05-14 |
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