CN107868668A - A kind of shaft furnace feeder and air supply method with ring-type air supply duct - Google Patents
A kind of shaft furnace feeder and air supply method with ring-type air supply duct Download PDFInfo
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- CN107868668A CN107868668A CN201711351691.XA CN201711351691A CN107868668A CN 107868668 A CN107868668 A CN 107868668A CN 201711351691 A CN201711351691 A CN 201711351691A CN 107868668 A CN107868668 A CN 107868668A
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- shaft furnace
- branch
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- air channel
- gas supply
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/02—Dry cooling outside the oven
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The present invention relates to a kind of shaft furnace feeder and air supply method with ring-type air supply duct, the feeder includes shaft furnace housing, upper cone bucket, lower cone bucket, annular passage, cross air channel；Also include ring-type air supply duct, central gas supply assembly and branch's gas supply assembly；Periphery of the ring-type air supply duct at the right-angled intersection of cross air channel, it is connected with 4 branch air channels in composition cross air channel；Underface of the central gas supply assembly at the right-angled intersection of cross air channel, the top of central gas supply assembly connects with cross air channel；Branch's gas supply assembly is multiple, is uniformly connected respectively with corresponding ring-type air supply duct or branch air channel located at the underface of ring-type air supply duct and ring-type air supply duct and branch's air channel infall, the top of branch's gas supply assembly.The present invention can improve the uniformity of gas-solid heat exchange and shaft furnace production efficiency in shaft furnace.
Description
Technical field
The present invention relates to heat recovery technology field, more particularly to it is a kind of with the shaft furnace feeder of ring-type air supply duct and confession
Gas method.
Background technology
Waste heat recovery for high-temperature solid material, shaft furnace are small etc. with its heat exchange efficiency height, waste heat quality height, floor space
Feature turns into the first choice in heat recovery technology field, the dry coke quenching auxiliary in coking field, the waste heat effective utilization system of sintering deposit
Deng all using heat-exchange apparatus of the shaft furnace as its core, wherein shaft furnace in the dry coke quenching production of coking industry using the widest
It is general.
In dry coke quenching auxiliary, the feeder of shaft furnace (also known as coke dry quenching furnace) bottom is installed on to coke descent in shaft furnace
Uniformity and the uniformity of air flow method have a significant impact.If its structure be advantageous to coke in stove circumferencial direction it is uniform under
Fall, be advantageous to SAPMAC method gas being uniformly distributed in shaft furnace circumferencial direction into shaft furnace, be then advantageously implemented coke in stove
Uniformly cooling, so as to improve the cooling performance of shaft furnace, the cooling effectiveness of shaft furnace is improved, when reducing dry in shaft furnace of coke and putting out
Between, reduce the volume of shaft furnace cooling chamber and reduce ton Jiao's gas material ratio, thrown so as to substantially reduce the construction of a whole set of dry coke quenching auxiliary
Money and operating cost；This effect for the dry coke quenching auxiliary that maximizes will be apparent from.
The Chinese patent of Application No. 200710158949.4 (applying date is on December 17th, 2007), disclose " a kind of
Special-purpose gas supplying device for coke dry quenching unit ", the device is by upper cone bucket, lower cone bucket, dry quenching furnace shell, annular passage, cross air channel, central wind
Cap is formed, and upper cone bucket, lower cone bucket set are plugged together, and the annular slot that set plug eave is formed forms annular passage, and cross air channel is located at
Lower cone bucket top, it is horizontally disposed with, its center and coke dry quenching furnace center superposition simultaneously upwardly extend and are arranged at the central wind on cone bucket top
Cap connects.The device is using by periphery vane ecto-entad air feed and central blast cap, from upper of furnace body, air feed is combined from inside to outside
Air feed form, central blast cap is arranged on above cross air channel.
The Chinese patent of Application No. 201610263740.3 (applying date is on April 26th, 2016) discloses " a kind of dry
Put out coke cooling means in stove multiple duct star feeder and coke dry quenching furnace ", respectively by the air-supply of periphery vane and center blast cap
Air intake is separated into multiple regions, and using star multiple duct form to regional air feed, the optimization to each air channel and office can be achieved
Portion's supply regulation, be advantageous to make coke cooling in coke dry quenching furnace more uniform.
But in above-mentioned supply scheme, center blast cap is arranged at the top in cross air channel, center blast cap occupies shaft furnace
A part of space in the cone bucket of bottom so that the material on cross air channel top is blocked at the blast cap of center, material quilt herein
Compel to turn to, cause whereabouts of the material in shaft furnace uneven, the heat exchange uniformity of material and recyclegas certainly will be influenceed.In in addition,
Heart blast cap is located at the center of shaft furnace, and recyclegas is upwardly into center blast cap behind cross air channel, runs into quilt after the obstruction of blast cap
Compel to turn back downwards, this process adds the pressure loss of recyclegas, increases the live load of circulating fan, while circulating air
Body concentrates centrally band entrance, will also result in the unbalanced of near zone interior air-flow distribution, uniform so as to influence gas-solid heat exchange
Property, reduce shaft furnace production efficiency.
The content of the invention
The invention provides a kind of shaft furnace feeder and air supply method with ring-type air supply duct, it is possible to increase gas in shaft furnace
Admittedly the uniformity and shaft furnace production efficiency that exchange heat.
In order to achieve the above object, the present invention is realized using following technical scheme：
A kind of shaft furnace feeder with ring-type air supply duct, including shaft furnace housing, upper cone bucket, lower cone bucket, annular passage, ten
Word air channel；The upper cone bucket, lower cone bucket set are plugged together, and the annular slot after upper cone bucket, lower cone bucket inserting forms annular passage；
Cross air channel is horizontally placed on lower cone bucket top, its center and shaft furnace center superposition；Upper cone bucket, lower cone bucket and shaft furnace housing form
Air chamber be divided into the two layers of air cells up and down completely cut off completely, wherein upper chamber is connected with annular passage, lower chamber and cross wind
Road is connected；Also include ring-type air supply duct, central gas supply assembly and branch's gas supply assembly；The ring-type air supply duct is located at cross wind
Periphery at road right-angled intersection, it is connected with 4 branch air channels in composition cross air channel；The central gas supply assembly is located at cross
Underface at the right-angled intersection of air channel, the top of central gas supply assembly connect with cross air channel；Branch's gas supply assembly is more
It is individual, uniformly located at the underface of ring-type air supply duct and ring-type air supply duct and branch's air channel infall, the top of branch's gas supply assembly
Connected respectively with corresponding ring-type air supply duct or branch air channel.
Set plug eave between the upper cone bucket, lower cone bucket is provided with air-flow plate.
The main body of the central gas supply assembly and branch's gas supply assembly is tubular structure, the bottom of main body set level board or
Clapboard simultaneously opens up bottom opening, along height to several lateral openings are set around main body, is correspondingly arranged above lateral openings
It is conical baffled.
The cross section of the central gas supply assembly or branch's gas supply assembly main body is circular or rectangle.
The main diameter of the central gas supply assembly be more than branch's gas supply assembly main diameter, and central gas supply assembly,
The cross air channel with corresponding installation site, the matching size of ring-type air supply duct close the main diameter of branch's gas supply assembly respectively.
The angle of the conical baffled inclined plane and horizontal plane is more than the angle of repose of material；The conical baffled lower edge in upper strata
With lower floor it is conical baffled on along the angle of line and horizontal plane be less than material angle of repose.
A kind of shaft furnace air supply method based on the gas-supplying structure, outer loop gas is from the upper chamber below shaft furnace with
Air chamber respectively enters shaft furnace, wherein the gas into upper chamber enters shaft furnace in the form of the vane of periphery to perpendicular via annular passage
Supply in stove, the air quantity of entrance is adjusted by described air-flow plate, into the gas of lower chamber from cross air channel along week
Enter cross air channel to 4 entrances of setting, a part of gas, which is converged at the right-angled intersection in cross air channel, to be entered in lower section
Entreat in gas supply assembly, then entered by central gas supply assembly by lateral openings and bottom opening in lower cone bucket；Another part gas
Branch's gas supply assembly into below the branch air channel in cross air channel and ring-type air supply duct, via the circumference on each branch gas supply assembly
Opening and bottom opening are fed in lower cone bucket, for uniformly being cooled down to the material in shaft furnace.
Compared with prior art, the beneficial effects of the invention are as follows：
1) the center blast cap being arranged in routine techniques above cross air channel is eliminated so that the material above cross air channel
Decline it is more uniform, by the central gas supply assembly and branch's gas supply assembly that are supplied for downward cone bucket be arranged at cross air channel and
The lower section of ring-type air supply duct, do not increase the obstruction to material in shaft furnace and interference, be advantageous to material even drop down and uniformly it is cold
But；
2) after the gas entered behind cross air channel is downwardly into central gas supply assembly and branch's gas supply assembly, can directly enter
Enter material bed, reduce the resistance inside gas-supplying structure, the energy consumption of residual neat recovering system can be reduced；
3) gas in lower chamber feeds shaft furnace through central gas supply assembly and multiple branch's gas supply assemblies, forms gas edge
Circumferential multiple spot and along height to multilayer feed, make the distribution of gas in lower cone bucket more uniform, be advantageous to the uniform cold of material
But, the production efficiency of shaft furnace is improved.
Brief description of the drawings
Fig. 1 is a kind of facade central cross-sectional view of shaft furnace feeder with ring-type air supply duct of the present invention.
Fig. 2 is the A-A views in Fig. 1.
Fig. 3 is Fig. 1 B portions enlarged drawing.
In figure：1. the ring-type air supply duct of 3. times cone buckets of cone bucket, 4. annular passage, 5. cross air channel 6. on shaft furnace housing 2.
7. 9. upper chamber of central 8. branch's gas supply assembly of gas supply assembly, 10. lower chamber, 11. air-flow plates 12. are conical baffled
Embodiment
The embodiment of the present invention is described further below in conjunction with the accompanying drawings：
As shown in Figure 1 and Figure 2, a kind of shaft furnace feeder with ring-type air supply duct of the present invention, including shaft furnace housing 1,
Upper cone bucket 2, lower cone bucket 3, annular passage 4, cross air channel 5；The upper cone bucket 2,3 sets of lower cone bucket are plugged together, upper cone bucket 2, under
Annular slot after the inserting of cone bucket 3 forms annular passage 4；Cross air channel 5 is horizontally placed on the lower top of cone bucket 2, and its center is with erecting
Stove center superposition；The air chamber that upper cone bucket 2, lower cone bucket 3 form with shaft furnace housing 1 is divided into the two layers of air cells up and down completely cut off completely,
Wherein upper chamber 9 is connected with annular passage 4, and lower chamber 10 is connected with cross air channel 5；Also include ring-type air supply duct 6, center
Gas supply assembly 7 and branch's gas supply assembly 8；Periphery of the ring-type air supply duct 6 at the right-angled intersection of cross air channel 5, with composition
4 branch air channels in cross air channel 5 are connected；The central gas supply assembly 7 at the right-angled intersection of cross air channel 5 just under
Side, the top of central gas supply assembly 7 connects with cross air channel 5；Branch's gas supply assembly 8 is multiple, is uniformly supplied located at ring-type
The underface of air flue 6 and ring-type air supply duct 6 and branch's air channel infall, the top of branch's gas supply assembly 8 respectively with corresponding ring-type
Air supply duct 6 or branch's air channel connection.
Set plug eave between the upper cone bucket 2, lower cone bucket 3 is provided with air-flow plate 11.
As shown in figure 3, the main body of the central gas supply assembly 7 and branch's gas supply assembly 8 is tubular structure, the bottom of main body
End sets level board or clapboard and opens up bottom opening, along height to setting several lateral openings around main body, lateral openings
Top is correspondingly arranged conical baffled 12.
The cross section of central gas supply assembly 7 or branch's gas supply assembly 8 main body is circular or rectangle.
The main diameter of the central gas supply assembly 7 is more than the main diameter of branch's gas supply assembly 8, and central gas supply assembly
7th, the main diameter of the branch's gas supply assembly 8 cross air channel 5 with corresponding installation site, the matching size of ring-type air supply duct 6 respectively
Close.
The angle of conical baffled 12 inclined plane and horizontal plane is more than the angle of repose of material；Under upper strata is conical baffled
Along with lower floor it is conical baffled on along the angle of line and horizontal plane (the angle C in Fig. 3) be less than material angle of repose.
The quantity of branch's gas supply assembly according to shaft furnace cool down it needs to be determined that.
A kind of shaft furnace air supply method based on the gas-supplying structure, outer loop gas is from the He of upper chamber 9 below shaft furnace
Lower chamber 10 respectively enters shaft furnace, wherein the gas into upper chamber 9 enters shaft furnace with the shape of periphery vane via annular passage 4
Formula is supplied into shaft furnace, and the air quantity of entrance is adjusted by described air-flow plate 11, into the gas of lower chamber 10 from ten
4 circumferentially arranged entrances of word air channel 5 enter cross air channel 5, and a part of gas is converged at the right-angled intersection in cross air channel 5
Enter lower cone bucket 2 by lateral openings and bottom opening into the central gas supply assembly 7 of lower section, then by central gas supply assembly 7
In；Another part gas enters the branch air channel in cross air channel 5 and branch's gas supply assembly 8 of the lower section of ring-type air supply duct 6, via each
Circumferential openings and bottom opening on branch gas supply assembly 8 are fed in lower cone bucket 3, uniformly cold for being carried out to the material in shaft furnace
But.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (7)
1. a kind of shaft furnace feeder with ring-type air supply duct, including shaft furnace housing, upper cone bucket, lower cone bucket, annular passage, cross
Air channel；The upper cone bucket, lower cone bucket set are plugged together, and the annular slot after upper cone bucket, lower cone bucket inserting forms annular passage；Ten
Word air channel is horizontally placed on lower cone bucket top, its center and shaft furnace center superposition；Upper cone bucket, lower cone bucket and shaft furnace housing composition
Air chamber is divided into the two layers of air cells up and down completely cut off completely, and wherein upper chamber is connected with annular passage, lower chamber and cross air channel
It is connected；Characterized in that, also include ring-type air supply duct, central gas supply assembly and branch's gas supply assembly；The ring-type air supply duct
Periphery at the right-angled intersection of cross air channel, it is connected with 4 branch air channels in composition cross air channel；The central supply group
Underface of the part at the right-angled intersection of cross air channel, the top of central gas supply assembly connects with cross air channel；The branch supplies
Pneumatic module is multiple, uniformly located at the underface of ring-type air supply duct and ring-type air supply duct and branch's air channel infall, branch's supply
The top of component connects with corresponding ring-type air supply duct or branch air channel respectively.
A kind of 2. shaft furnace feeder with ring-type air supply duct according to claim 1, it is characterised in that the epicone
Set plug eave between bucket, lower cone bucket is provided with air-flow plate.
3. a kind of shaft furnace feeder with ring-type air supply duct according to claim 1, it is characterised in that the center supplies
The main body of pneumatic module and branch's gas supply assembly is tubular structure, and the bottom of main body sets level board or clapboard and opens up bottom and opens
Mouthful, along height to several lateral openings are set around main body, it is correspondingly arranged above lateral openings conical baffled.
4. a kind of shaft furnace feeder with ring-type air supply duct according to claim 3, it is characterised in that the center supplies
The cross section of pneumatic module or branch's gas supply assembly main body is circular or rectangle.
5. a kind of shaft furnace feeder with ring-type air supply duct according to claim 3, it is characterised in that the center supplies
The main diameter of pneumatic module is more than the main diameter of branch's gas supply assembly, and central gas supply assembly, the main body of branch's gas supply assembly
The cross air channel with corresponding installation site, the matching size of ring-type air supply duct close diameter respectively.
A kind of 6. shaft furnace feeder with ring-type air supply duct according to claim 3, it is characterised in that the taper gear
The inclined plane of plate and the angle of horizontal plane are more than the angle of repose of material；Conical baffled upper of the conical baffled lower edge in upper strata and lower floor
It is less than the angle of repose of material along the angle of line and horizontal plane.
A kind of 7. shaft furnace air supply method based on gas-supplying structure according to claim 1, it is characterised in that outer loop gas
Shaft furnace is respectively enterd from the upper chamber below shaft furnace and lower chamber, wherein the gas into upper chamber is perpendicular via annular passage entrance
Stove is supplied in the form of the vane of periphery into shaft furnace, and the air quantity of entrance is adjusted by described air-flow plate, into lower gas
The gas of room enters cross air channel from 4 circumferentially arranged entrances of cross air channel, and a part of gas converges to cross air channel
Enter at right-angled intersection in the central gas supply assembly of lower section, then entered by central gas supply assembly by lateral openings and bottom opening
In lower cone bucket；Branch's gas supply assembly that another part gas enters below the branch air channel and ring-type air supply duct in cross air channel, warp
Fed by the circumferential openings on each branch gas supply assembly and bottom opening in lower cone bucket, it is uniformly cold for being carried out to the material in shaft furnace
But.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711351691.XA CN107868668A (en) | 2017-12-15 | 2017-12-15 | A kind of shaft furnace feeder and air supply method with ring-type air supply duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711351691.XA CN107868668A (en) | 2017-12-15 | 2017-12-15 | A kind of shaft furnace feeder and air supply method with ring-type air supply duct |
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| Publication Number | Publication Date |
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| CN107868668A true CN107868668A (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711351691.XA Pending CN107868668A (en) | 2017-12-15 | 2017-12-15 | A kind of shaft furnace feeder and air supply method with ring-type air supply duct |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101186831A (en) * | 2007-12-17 | 2008-05-28 | 中冶焦耐工程技术有限公司 | Special-purpose gas supplying device for coke dry quenching unit |
| CN203550620U (en) * | 2013-10-28 | 2014-04-16 | 中冶东方工程技术有限公司秦皇岛研究设计院 | Air distributor for vertical cooling furnace and vertical cooling furnace |
| CN107058666A (en) * | 2017-06-30 | 2017-08-18 | 江苏省冶金设计院有限公司 | A kind of cooling gas system for shaft furnace cooling section |
| CN207738691U (en) * | 2017-12-15 | 2018-08-17 | 中冶焦耐(大连)工程技术有限公司 | A kind of shaft furnace feeder of band ring-type air supply duct |
-
2017
- 2017-12-15 CN CN201711351691.XA patent/CN107868668A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101186831A (en) * | 2007-12-17 | 2008-05-28 | 中冶焦耐工程技术有限公司 | Special-purpose gas supplying device for coke dry quenching unit |
| CN203550620U (en) * | 2013-10-28 | 2014-04-16 | 中冶东方工程技术有限公司秦皇岛研究设计院 | Air distributor for vertical cooling furnace and vertical cooling furnace |
| CN107058666A (en) * | 2017-06-30 | 2017-08-18 | 江苏省冶金设计院有限公司 | A kind of cooling gas system for shaft furnace cooling section |
| CN207738691U (en) * | 2017-12-15 | 2018-08-17 | 中冶焦耐(大连)工程技术有限公司 | A kind of shaft furnace feeder of band ring-type air supply duct |
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