CN2366414Y - High-efficient air-blower for vertical limekiln - Google Patents
High-efficient air-blower for vertical limekiln Download PDFInfo
- Publication number
- CN2366414Y CN2366414Y CN 98241517 CN98241517U CN2366414Y CN 2366414 Y CN2366414 Y CN 2366414Y CN 98241517 CN98241517 CN 98241517 CN 98241517 U CN98241517 U CN 98241517U CN 2366414 Y CN2366414 Y CN 2366414Y
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- CN
- China
- Prior art keywords
- hole
- crown
- blast cap
- ash
- blast
- 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.)
- Expired - Fee Related
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- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The utility model relates to a high-efficient air-blower for vertical furnace limekilns, which belongs to an air intake device of vertical furnace limekilns. The utility model is provided with a cap top hole 2 at the center part of the top of a Y-shaped cap top 5 of a blast cap of the vertical cylinder-shaped or pagoda-shaped air blower. An ash leakage preventing device is installed right above the cap top hole 2, and an ash discharging device is installed at the center of the inner part of a blast cap body, wherein, the ash leakage preventing device is composed of an olive-shaped streamline body 1 which is arranged right above the cap top hole 2 and a supporting frame 3 for supporting the olive-shaped streamline body, and the supporting frame 3 is arranged on the Y-shaped cap top 5 of the blast cap; the ash discharging device 4 is composed of a straight cylinder 12 which is installed at the center of the inner part of the blast cap, the upper part of the straight cylinder is provided with a bell mouth 13, and the lower part of the straight cylinder is hollow. The device has the advantages that the airflow in a limekiln can be uniformly distributed, lime in each position can be completely decomposed, and the activity degree of lime and the productivity of the limekiln can be increased.
Description
The utility model belongs to the shaft kilns for lime air inlet device, is used for improving the variation and the distribution of gas flow in the shaft furnace.
The air-blast device of existing shaft kilns for lime, as column type, pagoda-shaped air-blast device, because unreasonable on the project organization, gas flow has a common feature: though promptly cold wind flows in the stove from the lower furnace center, because the relation of cap structure form, furnace wall around cold wind at first flows to, make many around the gas distribution in the shaft furnace, the center is few, this air-flow distribution makes air-flow competent local combustionvelocity in edge fast, zone of combustion is thin, and cooling conditions is produced the activity of lime height well; The insufficient local combustionvelocity of central gas stream is slow, the burning tape thickness, and it is low that the cooling conditions bad student produces activity of lime.This air-flow distributes and causes the diameter in limestone kiln not enlarge, and the capacity of stove is restricted, and labour productivity is lower.The activity degree of producing lime only has the 200-290 milliliter, not only influences the limestone kiln productivity effect, and influences lime user's productive capacity (as: oxygen top blown converter steel making slag making time lengthening, sinter quality, intensity reduction etc.).
The purpose of this utility model provides a kind of mixing and burns the shaft kilns for lime air-blast device, and this device is the improvement to existing column type and pagoda-shaped air-blast device.This device is evenly distributed airstream in kiln, and each position lime decomposes fully, improves the activity degree and the limestone kiln productivity of producing lime.
The purpose of this utility model is achieved in that
The efficient air-blast device of shaft kilns for lime of the present utility model is to open a crown hole 2 at the top center position of the herring-bone crown 5 of the blast cap of existing column type or pagoda-shaped air-blast device, an anti-leak-stopping apparatus for ash is installed directly over this crown hole 2, and an ash exhauster 4 is installed at the center in the blast cap body.Described crown hole 2 can be in circular hole, elliptical aperture, long strip shape hole, diamond hole or the square opening any; The support 3 that described anti-leak-stopping apparatus for ash is positioned at the olive shape fairing 1 directly over the crown hole 2 by one and is placed in this olive shape fairing of support on the blast cap herring-bone crown 5 constitutes, support is two portions about in the of 3 minutes, support 3 tops be 6～10 along the equally distributed steel bar 8 that is used for fixing the olive shape fairing of circumference, support 3 bottoms are the frustum of a cone 9 that steel plate is welded into, the upper end of described steel bar 8 is welded in the middle part of olive shape fairing 1, its lower end is welded on the frustum of a cone 9, and 6～10 of the described frustum of a cone 9 usefulness are fixedly placed on herring-bone crown 5 outer walls along the equally distributed floor 10 of circumference; Described ash exhauster 4 is that hydraucone 13 bottoms are that the straight tube 12 of hollow constitutes by the top that is installed in blast cap inside center place, protrude upward 6～10 along hydraucone 13 directions and weld mutually with blast cap herring-bone crown 5 inwalls along the equally distributed rib 14 of circumference, rib 14 is used for fixing ash exhauster; The bottom of the straight tube 12 of described ash exhauster is positioned on the shaft kilns for lime inner bottom part annular inlet air plenum ring flange 7 and passes ring flange 7 and is connected with an ash releasing tube.
Described steel bar 8, floor 10 and rib 14 preferably respectively are 8, and the maximum diameter of hole in described crown hole 2 is less than the minor diameter of olive shape fairing 1, and the maximum diameter of hole of described hydraucone 13 is greater than the maximum diameter of hole in crown hole 2.
S
1Be the hole area in described crown hole 2, the total air-out area S of blast cap is the area sum of the air outlet on all blast caps, and both sides relation is S
1: S=0.05～0.5.
Working process of the present utility model is: lime keeps off grey fairing 1 along the olive shape on the shaft furnace herring-bone crown 5 and falls, major part is fallen on the herring-bone crown 5, fall the furnace bottom of shaft furnace then, and wherein sub-fraction kemidol end may be fallen into the hydraucone 13 of the ash exhauster 4 in the blast cap cylindrical shell 11 by crown hole 2, and straight tube 12 and the coupled logical ash releasing tube through ash exhauster 4 is discharged to outside the shaft furnace kiln again.
Air-blast device of the present utility model is positioned on to mix and burns on the interior lower curtate annular of the shaft kilns for lime inlet air plenum ring flange, the cold wind that enters in the air-blast device divides two passages to flow out, a part is circled round downwards and is kept off grey longshore current along blast cap and go out, and this part gas mainly develops kiln preglabellar field air-flow.Another part directly flows out by the blast cap top drilling, and this part gas mainly develops central gas stream in the kiln, and two portions air-flow is joined before entering zone of combustion, makes zone of combustion shape uniform thickness reasonable.
Major advantage of the present utility model is that airstream in kiln is evenly distributed, and zone of combustion shape and thickness are reasonable, improves mixing burning shaft kilns for lime and produces the activity degree of lime and the productivity of shaft kilns for lime.
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is the column type shaft kilns for lime air-blast device synoptic diagram that is equipped with the utility model leakproof ash ash exhauster.
Among the figure: the 1-olive shape is kept off grey fairing, 2-crown hole, and 3-supports the Steel Bracket of olive shape fairing, the 4-ash exhauster, 5-herring-bone crown, 6-keeps off grey edge, the blue dish of the valve that 7-is connected with blast pipe, 8-is the steel bar of fairing fixedly, the 9-frustum of a cone, the 10-floor, 11-blast cap cylindrical shell, the straight tube of 12-, 13-hydraucone, the 14-rib, the air outlet on the 15-blast cap barrel.
As seen from Figure 1, the efficient air-blast device of shaft kilns for lime of the present utility model is to open a crown hole 2 at the top center position of the herring-bone crown 5 of the blast cap of column type air-blast device, crown hole 2 can be in circular hole, elliptical aperture, long strip shape hole, diamond hole or the square opening any.Directly over crown hole 2, be equipped with an olive shape fairing 1, on blast cap herring-bone crown 5, be equipped with a support 3 that supports this olive shape fairing, support is two portions about in the of 3 minutes, support 3 tops be 8 along the equally distributed steel bar 8 that is used for fixing the olive shape fairing of circumference, support 3 bottoms are the frustum of a cone 9 that steel plate is welded into, the upper end of steel bar 8 is welded in the middle part of olive shape fairing 1, its lower end is welded on the frustum of a cone 9, and 8 of the frustum of a cone 9 usefulness are fixedly placed on herring-bone crown 5 outer walls along the equally distributed floor 10 of circumference; It is that hydraucone 13 bottoms are the ash exhauster 4 of straight tube 12 formations of hollow that a top is installed at blast cap cylindrical shell 11 inside center places, the top of straight tube 12 protrudes upward 8 along hydraucone 13 directions and welds mutually with blast cap herring-bone crown 5 inwalls along the equally distributed rib 14 of circumference, and rib 14 is used for fixing ash exhauster 4; The bottom of the straight tube 12 of ash exhauster is positioned on the shaft kilns for lime inner bottom part annular inlet air plenum ring flange 7 and passes ring flange 7 and is connected with an ash releasing tube.
S
1Be the hole area in described crown hole 2, the total air-out area S of blast cap is the area sum of the air outlet 15 on all blast cap barrels, and both sides relation is S
1: S=0.05～0.5.
Claims (5)
1, the efficient air-blast device of a kind of shaft kilns for lime, it is characterized in that said device is to open a crown hole (2) at the top center position of the herring-bone crown (5) of the blast cap of column type or pagoda-shaped air-blast device, an anti-leak-stopping apparatus for ash is installed directly over this crown hole (2), and an ash exhauster (4) is installed at the center in the blast cap body; The support (3) that described anti-leak-stopping apparatus for ash is positioned at the olive shape fairing (1) directly over the crown hole (2) by one and is placed in this olive shape fairing of support on the blast cap herring-bone crown (5) constitutes, support (3) divides two portions up and down, support (3) top be 6～10 along the equally distributed steel bar (8) that is used for fixing the olive shape fairing of circumference, support (3) bottom is the frustum of a cone (9) that steel plate is welded into, the upper end of described steel bar (8) is welded in the middle part of olive shape fairing (1), its lower end is welded on the frustum of a cone (9), and the described frustum of a cone (9) is fixedly placed on herring-bone crown (5) outer wall along the equally distributed floor of circumference (10) with 6～10; Described ash exhauster (4) is that hydraucone (13) bottom is straight tube (12) formation of hollow by the top that is installed in blast cap inside center place, protrude upward 6～10 along hydraucone (13) direction and weld mutually with blast cap herring-bone crown (5) inwall along the equally distributed rib of circumference (14), rib (14) is used for fixing ash exhauster (4); The bottom of the straight tube (12) of described ash exhauster is positioned on the shaft kilns for lime inner bottom part annular inlet air plenum ring flange (7) and passes ring flange (7) and is connected with an ash releasing tube.
2, device as claimed in claim 1 is characterized in that the maximum diameter of hole in described crown hole (2) is less than the minor diameter of olive shape fairing (1), and the maximum diameter of hole of described hydraucone (13) is greater than the maximum diameter of hole of crown hole (2).
3, device as claimed in claim 1 is characterized in that the hole area S in described crown hole 2
1With the ratio of the total air-out area S of blast cap be: S
1: S=0.05～0.5.
4, device as claimed in claim 1 or 2, it is characterized in that described crown hole (2) can be in circular hole, elliptical aperture, long strip shape hole, diamond hole or the square opening any.
5, device as claimed in claim 1 or 2 is characterized in that described steel bar (8), floor (10) and rib (14) respectively are 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98241517 CN2366414Y (en) | 1998-10-15 | 1998-10-15 | High-efficient air-blower for vertical limekiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98241517 CN2366414Y (en) | 1998-10-15 | 1998-10-15 | High-efficient air-blower for vertical limekiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2366414Y true CN2366414Y (en) | 2000-03-01 |
Family
ID=33988254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98241517 Expired - Fee Related CN2366414Y (en) | 1998-10-15 | 1998-10-15 | High-efficient air-blower for vertical limekiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2366414Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841182A (en) * | 2016-06-08 | 2016-08-10 | 孙吉章 | Air outlet device of biomass combustion furnace |
| CN114591007A (en) * | 2022-04-12 | 2022-06-07 | 淮阴工学院 | Recovery device and method for blast cap in lime kiln |
-
1998
- 1998-10-15 CN CN 98241517 patent/CN2366414Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841182A (en) * | 2016-06-08 | 2016-08-10 | 孙吉章 | Air outlet device of biomass combustion furnace |
| CN114591007A (en) * | 2022-04-12 | 2022-06-07 | 淮阴工学院 | Recovery device and method for blast cap in lime kiln |
| CN114591007B (en) * | 2022-04-12 | 2022-11-18 | 淮阴工学院 | Recovery device and method for blast cap in lime kiln |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |