CN106969626A - Shaft furnace - Google Patents
Shaft furnace Download PDFInfo
- Publication number
- CN106969626A CN106969626A CN201710245972.0A CN201710245972A CN106969626A CN 106969626 A CN106969626 A CN 106969626A CN 201710245972 A CN201710245972 A CN 201710245972A CN 106969626 A CN106969626 A CN 106969626A
- Authority
- CN
- China
- Prior art keywords
- nozzle
- shaft furnace
- air chamber
- venthole
- charging aperture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 claims abstract description 37
- 239000004744 fabric Substances 0.000 claims abstract description 19
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000009827 uniform distribution Methods 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 19
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/005—Shaft or like vertical or substantially vertical furnaces wherein no smelting of the charge occurs, e.g. calcining or sintering furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/08—Shaft or like vertical or substantially vertical furnaces heated otherwise than by solid fuel mixed with charge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
- F27B1/22—Arrangements of heat-exchange apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The present invention discloses a kind of shaft furnace, including：Body of heater, the roof of body of heater is provided with charging aperture；Nozzle assembly, nozzle assembly includes air inlet pipe and nozzle, and nozzle, which is located in the underface of charging aperture, nozzle, is formed with air chamber, one end of air inlet pipe is stretched into be connected in body of heater with air chamber, and the periphery wall of air chamber is provided with the venthole that multiple circumferential directions along nozzle are spaced apart.According to the shaft furnace of the present invention, when shaft furnace works, gas can be entered in air chamber from air inlet pipe and flowed to from multiple ventholes on the periphery wall of air chamber with what higher flow velocity disperseed in the circumference of air chamber outside air chamber, so as to the power to the material radial direction fallen, so that the material fallen is moved in the horizontal direction, the purpose of uniform distribution is realized, while the feed blocking venthole fallen can also be avoided, and also energy consumption is small.In addition, the setting of nozzle assembly, simplifies the structure of cloth system, so as to reduce maintenance cost and fault rate.
Description
Technical field
The present invention relates to metal smelt technical field, more particularly, to a kind of shaft furnace.
Background technology
Shaft furnace is a kind of heat-exchange apparatus worked by counterflow principle.It is characterized in green-ball in furnace roof by apparatus for distributing
Load in stove, ball is continuously declined with even speed, the hot gas of combustion chamber enters in stove from bocca.Hot gas from bottom to top with
Top-down green-ball carries out heat exchange.Green-ball enters roast area through excessively dry, preheating, and it is anti-to carry out high-temperature concretion in roast area
Should, then cooled down and discharge in lower furnace, whole process is once completed in shaft furnace.
The cloth system of shaft furnace is particularly important, and the uniformity of cloth determines the utilization rate and production efficiency of energy consumption, material
The heat-transfer effect of the more uniform individual particle of arrangement is better, and Btu utilization is higher.The cloth system structure of gas-based shaft kiln in correlation technique
Complexity, fault rate is high, maintenance cost is high, energy consumption is big and material is flowed out with fluid state during cloth, it is descending during
Discrete effect is not reaching to, cloth is uneven.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.Therefore, the present invention is carried
Go out a kind of shaft furnace, cloth evenness is good.
Shaft furnace according to embodiments of the present invention, including：Body of heater, the roof of the body of heater is provided with charging aperture；Nozzle assembly,
The nozzle assembly includes air inlet pipe and nozzle, and the nozzle, which is located in the underface of the charging aperture, the nozzle, to be formed with
Air chamber, one end of the air inlet pipe is stretched into be connected in the body of heater with the air chamber, is set on the periphery wall of the air chamber
There is the venthole that multiple circumferential directions along the nozzle are spaced apart.
Shaft furnace according to embodiments of the present invention, by setting nozzle assembly, and makes nozzle be located at the underface of charging aperture, together
When air inlet pipe is connected with the air chamber of nozzle so that when shaft furnace works, gas can be entered in air chamber simultaneously from air inlet pipe
Gas is flowed to from multiple ventholes on the periphery wall of air chamber with what higher flow velocity disperseed in the circumference of air chamber
Outside chamber, so that the power of the material radial direction to whereabouts so that the material of whereabouts is moved in the horizontal direction, realizes the mesh of uniform distribution
, while the feed blocking venthole fallen can also be avoided, and energy consumption is small.In addition, the setting of nozzle assembly, simplifies cloth
The structure of material system, so as to reduce maintenance cost and fault rate.
According to some embodiments of the present invention, the roof of the nozzle, which is provided with, is used for the thing to entering from the charging aperture
Material carries out tentatively scattered tapered portion.
Specifically, the charging aperture is formed as coniform shape, the top of the tapered portion and the lower end of the charging aperture
The distance between be H, the internal diameter of the upper end of the charging aperture is D, the H and the D satisfaction：H=D.
Specifically, the tapered portion is formed as coniform shape, and the basal diameter of the tapered portion is d, d=D/2.
Alternatively, the tapered portion is formed as coniform shape, and the cone angle of the tapered portion is α, 60 °≤α≤120 °.
According to some embodiments of the present invention, each orthographic projection of the venthole on the cross section of the nozzle is prolonged
Stretch the center of direction and the cross section to the angle between the line at the inner center of the orthographic projection of the venthole be β,
0 ° of 75 ° of ＜ β ＜.
According to some embodiments of the present invention, the air chamber is provided with the axial direction for coming the nozzle more and is spaced
The stomata group of distribution, often arranging the stomata group includes going out described in multiple circumferential direction uniform intervals distributions along the nozzle
Stomata.
According to some embodiments of the present invention, the cross section of the venthole is formed as circular or strip.
Alternatively, shaft furnace also includes barometric damper, and it is described that the barometric damper is connected on being located at for the air inlet pipe
On pipeline section outside body of heater and for adjusting the gas flow rate at the venthole.
Alternatively, the gas flow rate of the venthole is V, 8m/s≤V≤50m/s.
Brief description of the drawings
Fig. 1 is the schematic diagram of shaft furnace according to some embodiments of the invention；
Fig. 2 is the schematic diagram of nozzle assembly according to some embodiments of the invention；
Fig. 3 is the sectional view of the nozzle assembly according to Fig. 2；
Fig. 4 is the schematic diagram of the nozzle assembly according to other embodiments of the invention；
Fig. 5 is the schematic diagram of the nozzle assembly according to yet other embodiments of the invention；
Fig. 6 is the schematic diagram of the nozzle assembly according to still other embodiments of the present invention.
Reference：
Shaft furnace 100；Body of heater 1；Charging aperture 11；
Nozzle assembly 2；Air inlet pipe 21；Nozzle 22；Venthole 221；Connecting tube 222；Tapered portion 23；Feed regulating valve 3；Gas
Flow regulating valve 4.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of accompanying drawing description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, rather than indicate or imply that the device or element of meaning must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect or can communicate each other；Can be joined directly together, can also be indirectly connected to by intermediary, can be with
It is connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For this area
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are directly contacted, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
Below with reference to the accompanying drawings shaft furnace 100 according to embodiments of the present invention is described.
As shown in figure 1, shaft furnace 100 according to embodiments of the present invention can include body of heater 1 and nozzle assembly 2.
The roof of body of heater 1 is provided with charging aperture 11, material such as green-ball can be entered from charging aperture 11 in body of heater 1 in order to
Material completes the processes such as drying, preheating, high temperature sintering in body of heater 1.
As shown in figs 1 to 6, nozzle assembly 2 include air inlet pipe 21 and nozzle 22, nozzle 22 be located at charging aperture 11 just under
Side.For example, nozzle 22 is located at the lower section of charging aperture 11 and the central axis of nozzle 22 is overlapped with the central axis of charging aperture 11.
Air chamber is formed with nozzle 22, one end of air inlet pipe 21 is stretched into be connected in body of heater 1 with air chamber.Outside air chamber
Perisporium is provided with the venthole 221 that multiple circumferential directions along nozzle 22 are spaced apart.For example, the quantity of venthole 221 be 6~
Between 30.
Thus, when shaft furnace 100 works, material can be entered in body of heater 1 from charging aperture 11, gas such as nitrogen or air
Etc. can be entered from air inlet pipe 21 in air chamber, gas enters row buffering in air chamber, then respectively from positioned at the outer of air chamber
Multiple ventholes 221 on perisporium with higher flow rate and direction air chamber outside so that the motive force of the material radial direction to whereabouts, makes
The material that must fall moves the power source to be spread by the use of the thrust of gas as material in the horizontal direction, realizes uniform distribution
Purpose, it is not only simple in construction, fault rate and maintenance cost can be reduced, and also energy consumption is small.
The uniform intervals of multiple ventholes 221 being preferably located on the periphery wall of air chamber are set.
Shaft furnace 100 according to embodiments of the present invention, by setting nozzle assembly 2, and makes nozzle 22 be located at charging aperture 11
Underface, while connecting air inlet pipe 21 and the air chamber of nozzle 22, so that when shaft furnace 100 works, gas can be from air inlet pipe
21 enter in air chamber and from multiple ventholes 221 on the periphery wall of air chamber with higher flow velocity in air chamber
That disperses in circumference flows to outside air chamber, so that the power of the material radial direction to whereabouts so that the material of whereabouts is transported in the horizontal direction
It is dynamic, the purpose of uniform distribution is realized, while the feed blocking venthole 221 fallen can also be avoided, and also energy consumption is small.In addition,
The setting of nozzle assembly 2, simplifies the structure of cloth system, so as to reduce maintenance cost and fault rate.
According to some embodiments of the present invention, as shown in Fig. 1-Fig. 2 and Fig. 4-Fig. 6, the roof of nozzle 22 is provided with use
Tentatively scattered tapered portion 23 is carried out in the material to entering from charging aperture 11.Specifically, fall in material from charging aperture 11
When can fall in tapered portion 23, tapered portion 23 can to material carry out tentatively disperse, tapered portion 23 to material tentatively disperse after, thing
Material can further be promoted and disperseed by the gas discharged from venthole 221, so as to further improve the uniformity of cloth.It is optional
Ground, tapered portion 23 is formed as the shapes such as circular cone or quadrangular pyramid.Preferably, the center of the center line of tapered portion 23 and charging aperture 11
Line is overlapped.
Specifically, as shown in figure 1, charging aperture 11 is formed as coniform shape, top and the charging aperture 11 of tapered portion 23
The distance between lower end is H, and the internal diameter of the upper end of charging aperture 11 meets for D, H and D：H=D.So as to by charging aperture 11 with
The optimization of the size of tapered portion 23 is further to improve the uniformity of cloth.And nozzle can be realized according to the size of charging aperture 11
The variation and maximization of the structure and size of component 2, consequently facilitating the industrialization of shaft furnace 100.
Alternatively, tapered portion 23 is formed as coniform shape, and the basal diameter of tapered portion 23 is d, d=D/2.Thus, tie
Structure is simple, and can further improve the uniformity of cloth.Especially, for a diameter of 8mm~16mm material, it is desirable to H and D
Meet：H=D, d are met：D=D/2.
Alternatively, as shown in Fig. 2 tapered portion 23 is formed as coniform shape, the cone angle of tapered portion 23 is α, 60 °≤α≤
120°.Preferably, 90 °≤α≤120 °.So as to by the dimensionally-optimised further to improve the uniform of cloth of tapered portion 23
Property.
Alternatively, as shown in figure 3, the bearing of trend of each orthographic projection of the venthole 221 on the cross section of nozzle 22 with
The center of cross section to the angle between the line at the inner center of the orthographic projection of venthole 221 be β, 0 ° of 75 ° of ＜ β ＜.By
This, can be sprayed with rotation status to a certain extent when gas flows out from venthole 221, so as to play the effect of disturbance material
Fruit with cause material distribution evenly.
According to some embodiments of the present invention, air chamber is provided with and comes what is be spaced apart on the axial direction of nozzle 22 more
Stomata group, the venthole 221 that multiple circumferential direction uniform intervals along nozzle 22 are distributed is included per steam vent group.For example, gas
Body cavity comes the stomata group being spaced apart on the axial direction of nozzle 22 provided with two, includes eight ventholes per steam vent group
221.Thus, it is simple in construction, and the perturbation action being provided with beneficial to further raising to the material of whereabouts of many steam vent groups,
Further improve discrete effect.
Alternatively, the cross section of venthole 221 be formed as it is round-shaped as shown in Fig. 1-Fig. 4 and Fig. 6, or,
In further embodiments, the cross section of venthole 221 is formed as strip as shown in Figure 5.Certainly, venthole 221
Cross section may be formed as other shapes.
Alternatively, the aperture of venthole 221 is preferably 4mm~16mm.
According in some embodiments of the present invention, shaft furnace 100 also includes charging regulating valve 3.For example, charging regulating valve 3 can
It is arranged at charging aperture 11.Charging regulating valve 3 is used for the charging rate for adjusting the material entered from charging aperture 11 in body of heater 1,
Consequently facilitating adjust different charging rates according to different material, in order to different materials in shaft furnace 100 cloth it is equal
Even property.Specifically, hopper is provided with charging aperture 11, the discharging opening of hopper is connected with charging aperture 11, and the material in hopper can pass through
Charging aperture 11 is entered in body of heater 1.
Alternatively, as shown in figure 1, shaft furnace 100 also includes barometric damper 4, barometric damper 4 is connected on air inlet pipe 21
On the pipeline section outside body of heater 1 and for adjusting the gas flow rate at venthole 221.Consequently facilitating according to how much profits of inventory
Adjust the flow velocity of air-flow to optimize the uniformity of cloth with barometric damper 4.
Alternatively, the gas flow rate of venthole 221 is V, 8m/s≤V≤50m/s.Especially for density≤5t/m3Thing
Material, the gas flow rate V of venthole 221 needs to be set in 8m/s≤V≤50m/s to optimize cloth effect.Preferably, 30m/s≤V
≤50m/s。
Alternatively, as shown in figure 4, the outer end of each venthole 221 is connected with connecting tube 222, connecting tube 222 along with spray
The direction that the radial direction of mouth 22 is parallel stretches out.Specifically, the external port of each connecting tube 222 is inclined-plane, the outer end
Mouthful from charging aperture 11 to obliquely inwardly extending on the direction of nozzle 22, so as to further avoid the feed blocking connection fallen
The outlet side of pipe 222.
According to some embodiments of the present invention, screw thread connects between one end being located in body of heater 1 of air inlet pipe 21 and air chamber
Connect.When being damaged so as at least one in air inlet pipe 21 and nozzle 22, it is convenient for changing.
The structure of the shaft furnace 100 of a specific embodiment of the invention is described in detail below with reference to Fig. 1.
As shown in figure 1, shaft furnace 100 according to embodiments of the present invention includes body of heater 1 and nozzle assembly 2.
The roof of body of heater 1 is provided with charging aperture 11, and green-ball can be entered in body of heater 1 from charging aperture 11 in order to which material is in stove
The processes such as drying, preheating, high temperature sintering are completed in body 1.
As shown in figure 1, nozzle assembly 2 includes air inlet pipe 21 and nozzle 22, nozzle 22 is located at the underface of charging aperture 11.Spray
Air chamber is formed with mouth 22, one end of air inlet pipe 21 is stretched into be connected in body of heater 1 with air chamber.The periphery wall of air chamber is provided with
Two come the stomata group being spaced apart on the axial direction of nozzle 22, the circumference side for including eight along nozzle 22 per steam vent group
The venthole 221 being distributed to uniform intervals, the cross section of venthole 221 is formed as round-shaped, and the aperture of venthole 221 is
12mm.Two discharge stomatas are staggered about 221.The gas flow rate of venthole 221 is V, V=40m/s.
It is used to carry out what is tentatively disperseed to the material entered from charging aperture 11 as shown in figure 1, the roof of nozzle 22 is provided with
Tapered portion 23.Specifically, as shown in figure 1, charging aperture 11 is formed as coniform shape, top and the charging aperture 11 of tapered portion 23
The distance between lower end is H, and the internal diameter of the upper end of charging aperture 11 meets for D, H and D：H=D.Tapered portion 23 is formed as cone
Shape, the basal diameter of tapered portion 23 is d, d=D/2.Thus, it is simple in construction, and can further improve the uniformity of cloth,
The cone angle of tapered portion 23 is 90 °.
Inventor, using the shaft furnace 100 of above-described embodiment, is disperseed in practical study in shaft furnace 100 to material,
The uniformity of its cloth is weighed by measuring the height of blanking layer, result of study is：Grain diameter is 12mm granular pile densities
2.2kg/cm3Material, blanking layer the minimum thickness of highest thickness ratio it is high by 5~8%, basically reach uniform distribution.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specific example ",
Or the description of " some examples " etc. means to combine specific features, structure, material or the feature bag that the embodiment or example are described
It is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term necessarily
It is directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be at any one
Or combined in an appropriate manner in multiple embodiments or example.In addition, in the case of not conflicting, those skilled in the art
Member the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification can be combined and
Combination.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (10)
1. a kind of shaft furnace, it is characterised in that including：
Body of heater, the roof of the body of heater is provided with charging aperture；
Nozzle assembly, the nozzle assembly includes air inlet pipe and nozzle, and the nozzle is located at the underface of the charging aperture, described
Air chamber is formed with nozzle, one end of the air inlet pipe is stretched into be connected in the body of heater with the air chamber, the air chamber
Periphery wall be provided with the venthole that is spaced apart of multiple circumferential directions along the nozzle.
2. shaft furnace according to claim 1, it is characterised in that the roof of the nozzle, which is provided with, to be used for from the charging
The material that mouth enters carries out tentatively scattered tapered portion.
3. shaft furnace according to claim 2, it is characterised in that the charging aperture is formed as coniform shape, the taper
The distance between lower end of the top in portion and the charging aperture is H, and the internal diameter of the upper end of the charging aperture is D, the H and described
D is met：H=D.
4. shaft furnace according to claim 3, it is characterised in that the tapered portion is formed as coniform shape, the taper
The basal diameter in portion is d, d=D/2.
5. shaft furnace according to claim 2, it is characterised in that the tapered portion is formed as coniform shape, the taper
The cone angle in portion is α, 60 °≤α≤120 °.
6. shaft furnace according to claim 1, it is characterised in that each venthole is on the cross section of the nozzle
The center of the bearing of trend of orthographic projection and the cross section is between the line at the inner center of the orthographic projection of the venthole
Angle be β, 0 ° of 75 ° of ＜ β ＜.
7. shaft furnace according to claim 1, it is characterised in that the air chamber is provided with the axial direction for coming the nozzle more
The stomata group being spaced apart on direction, often arranging the stomata group includes multiple circumferential direction uniform intervals point along the nozzle
The venthole of cloth.
8. shaft furnace according to claim 1, it is characterised in that the cross section of the venthole is formed as circular or strip
Shape.
9. the shaft furnace according to any one of claim 1-8, it is characterised in that also including barometric damper, the air-flow
Regulating valve is connected on the pipeline section being located at outside the body of heater of the air inlet pipe and for adjusting the gas stream at the venthole
Speed.
10. shaft furnace according to claim 9, it is characterised in that the gas flow rate of the venthole is V, 8m/s≤V≤
50m/s。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710245972.0A CN106969626A (en) | 2017-04-14 | 2017-04-14 | Shaft furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710245972.0A CN106969626A (en) | 2017-04-14 | 2017-04-14 | Shaft furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106969626A true CN106969626A (en) | 2017-07-21 |
Family
ID=59332814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710245972.0A Pending CN106969626A (en) | 2017-04-14 | 2017-04-14 | Shaft furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106969626A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339690A (en) * | 2017-07-31 | 2017-11-10 | 江苏科行环保科技有限公司 | Alumina roasting furnace and its axial air staged-combustion method |
| CN109436842A (en) * | 2018-11-28 | 2019-03-08 | 中国恩菲工程技术有限公司 | Industrial furnace feed system |
| CN109626013A (en) * | 2018-11-28 | 2019-04-16 | 中国恩菲工程技术有限公司 | Industrial furnace feed system |
-
2017
- 2017-04-14 CN CN201710245972.0A patent/CN106969626A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339690A (en) * | 2017-07-31 | 2017-11-10 | 江苏科行环保科技有限公司 | Alumina roasting furnace and its axial air staged-combustion method |
| CN109436842A (en) * | 2018-11-28 | 2019-03-08 | 中国恩菲工程技术有限公司 | Industrial furnace feed system |
| CN109626013A (en) * | 2018-11-28 | 2019-04-16 | 中国恩菲工程技术有限公司 | Industrial furnace feed system |
| CN109436842B (en) * | 2018-11-28 | 2024-03-19 | 中国恩菲工程技术有限公司 | Industrial furnace feeding system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102410715B (en) | Parallel-flow heating vertical static dryer | |
| CN106969626A (en) | Shaft furnace | |
| CN104880118B (en) | A kind of cooling tower water distribution system, cooling tower and cooling tower decreasing water distribution method | |
| CN103353246A (en) | Recuperative heat exchanger of powder | |
| CN110319686A (en) | A kind of uniform drying unit of cereal | |
| CN101313776A (en) | Moisture regaining method and apparatus for tobacco, Chinese herbal medicine and its products | |
| CN106417227A (en) | Air feeding system for air curtain type boom sprayer | |
| CN107202320A (en) | A kind of adjustable fluid bed even distributing wind system and its control system | |
| CN201360529Y (en) | Charging equipment of tobacco material | |
| CN105265572A (en) | Grain dryer | |
| CN103776251A (en) | Hot wind distributor | |
| CN206670326U (en) | Shaft furnace | |
| CN201803581U (en) | Concurrent heating vertical static drying machine | |
| CN206607247U (en) | Gas-based reduction shaft furnace | |
| CN206609216U (en) | A kind of fluidized bed type airdrying tower | |
| CN109046186A (en) | A kind of catalyst fluidization unit and fluidized-bed catalytic reactor | |
| CN208878501U (en) | A kind of spray-drying pelleting machine | |
| CN203525647U (en) | Spraying granulating device | |
| CN206887016U (en) | Down-flow fluidized bed using ECT | |
| CN106978199A (en) | Down-flow fluidized bed using ECT | |
| CN102039103A (en) | Gas-solid phase feed distributor | |
| CN206414776U (en) | A kind of spray drying tower | |
| CN207330842U (en) | A kind of gas distribution equipment for gas complete alternation long flame coal carbonization furnace | |
| CN209596580U (en) | A kind of cold and hot multi-stage alternate drying tower | |
| CN221549248U (en) | Drying device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |