CN109307427A - A kind of double horn mouth formula shaft furnace kiln bottom discharge bucket structure and its working method - Google Patents
A kind of double horn mouth formula shaft furnace kiln bottom discharge bucket structure and its working method Download PDFInfo
- Publication number
- CN109307427A CN109307427A CN201811288886.9A CN201811288886A CN109307427A CN 109307427 A CN109307427 A CN 109307427A CN 201811288886 A CN201811288886 A CN 201811288886A CN 109307427 A CN109307427 A CN 109307427A
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- China
- Prior art keywords
- peripheral groove
- shaft furnace
- slot
- cooling air
- discharge bucket
- 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
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 54
- 230000002093 peripheral effect Effects 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 25
- 238000007599 discharging Methods 0.000 claims abstract description 11
- 239000003351 stiffener Substances 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000008676 import Effects 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002716 delivery method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 238000003466 welding Methods 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
- F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
- F27B1/21—Arrangements of devices for discharging
-
- 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 peculiar to furnaces of these types
- F27B1/24—Cooling arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/007—Cooling of charges therein
- F27D2009/0072—Cooling of charges therein the cooling medium being a gas
- F27D2009/0075—Cooling of charges therein the cooling medium being a gas in direct contact with the charge
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Furnace Details (AREA)
Abstract
The present invention relates to a kind of double horn mouth formula shaft furnace kiln bottom discharge bucket structure and its working method, the discharging bucket structure encloses slot, peripheral groove, stiffener plate and straight pipe including interior, inside encloses and is fixedly connected between slot and peripheral groove by multiple stiffener plates；It inside encloses slot and peripheral groove all has up big and down small bell-mouth structure of air, form cooling air channel between the two；The top for inside enclosing slot is higher than the top of peripheral groove, forms top annular air inlet at the top in cooling air channel；The bottom for inside enclosing slot is higher than the bottom of peripheral groove, forms base circle air inlet in the bottom in cooling air channel；The bottom of peripheral groove is connect with straight pipe.In the present invention, cooling air is enclosed the cooling air channel that slot and peripheral groove form and is entered in kiln by interior, guarantees that the material calcined can be sufficiently cool, and will not block the import of cooling air easily, material will not leak outside discharge bucket on other work tops；The bucket structure that discharges is simple, and manufacture, installation, maintenance are convenient.
Description
Technical field
The present invention relates to shaft furnace technical field more particularly to a kind of double horn mouth formula shaft furnace kiln bottom discharge bucket structure and its works
Make method.
Background technique
For the shaft furnace of full negative-pressure operation, the cooling to the material calcined is to rely on the effect of induced-draft fan draft to shaft furnace
Interior conveying cooling air, the cooling air delivery method routinely used at present is: in the discharge bucket cone of the cooling pars infrasegmentalis of kiln
The circumferentially arranged several evenly spaced round bars of side wall, cooling air are sucked from the gap between round bar, and drawback is
Often occur the feelings that material in discharge bucket drains to other working faces from the gap between round bar during exhausting is cooling
Condition, and the gap between round bar can reduce or even be blocked by material after a period of work, cause cooling air smooth
Into in shaft furnace；Kiln discharge temperature of charge increases, and finished belt conveyer is caused to burn；Shaft furnace can only the underproduction even stop production tieed up
It repairs, so being badly in need of inventing a kind of good cooling results, protects ambient enviroment, it is ensured that shaft furnace produces a kind of new-type of direct motion and goes out
Hopper construction.
Summary of the invention
The present invention provides a kind of double horn mouth formula shaft furnace kiln bottom discharge bucket structure and its working methods, grasp for full negative pressure
The shaft furnace of work, cooling air are enclosed the cooling air channel that slot and peripheral groove form and are entered in kiln by interior, guarantee the material calcined
It can be sufficiently cool, and the import of cooling air will not be blocked easily, material will not leak other work outside discharge bucket
On table top；The bucket structure that discharges is simple, and manufacture, installation, maintenance are convenient.
In order to achieve the above object, the present invention is implemented with the following technical solutions:
A kind of double horn mouth formula shaft furnace kiln bottom discharge bucket structure, set on the cooling pars infrasegmentalis of the shaft furnace of full negative-pressure operation；Packet
Enclose slot, peripheral groove, stiffener plate and straight pipe in including, inside enclose between slot and peripheral groove through be uniformly arranged in the circumferential direction multiple plus
Strengthening tendons plate is fixedly connected；Slot is enclosed in described and peripheral groove all has up big and down small bell-mouth structure of air, is had between the two uniform
Gap formed cooling air channel；The top for inside enclosing slot is higher than the top of peripheral groove, thus at the top in cooling air channel
Form top annular air inlet；The bottom for inside enclosing slot is higher than the bottom of peripheral groove, to be formed in the bottom in cooling air channel
Base circle air inlet；The bottom of peripheral groove is connect with straight pipe.
It is enclosed in described and sets inlet flange at the top of slot, be bolted with the outlet(discharge) flange of shaft furnace bottom coohng section.
The peripheral groove is circumferentially arranged with multiple hand holes.
The straight pipe with shaft furnace discharging device entrance for connecting.
The horizontal cross sectional geometry that slot and peripheral groove are enclosed in described is rectangle or circle.
The working method of a kind of double horn mouth formula shaft furnace kiln bottom discharge bucket structure, comprising: cooling air passes through top
Portion's circular air inlet mouth enters cooling air channel, then enters shaft furnace cooling section bottom from base circle air inlet, from bottom to top
Material in kiln is cooled down；The material calcined is discharged after cooling section is cooling by shaft furnace discharging device；Peripheral groove week
To multiple hand holes of setting, for carrying out block clearing operation in cooling air channel blockage.
Compared with prior art, the beneficial effects of the present invention are:
1) in the past compared with the mode of inspiration cooling air in the gap on discharge bucket side wall between more round bars, this
Invention solves the easy blocking of hopper air inlet, material is easy to drain to other work tops outside discharge bucket, kiln discharge finished product temperature surpasses
Height burns out the problem of finished belt conveyer, and kiln is made smoothly to reach production；
2) discharge bucket is simple and compact for structure, facilitates technology arrangement, manufacture, installation and easy to maintain；
3) can it is long-term, stablize, continuously work, reduce the time that maintenance needs；
4) it is suitable for the shaft furnace of newly-built, renovating and enlarging full negative-pressure operation, strong applicability.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of double horn mouth formula shaft furnace kiln bottom discharge bucket structure of the present invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is a kind of working state schematic representation of double horn mouth formula shaft furnace kiln bottom discharge bucket structure of the present invention.
In figure: it is cooling empty to enclose 5. hand hole of slot 2. inlet flange, 3. peripheral groove, 4. stiffener plate, 6. straight pipe 7. in 1.
8. material of gas channel
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing:
As shown in Figure 1 and Figure 2, a kind of double horn mouth formula shaft furnace kiln bottom discharge bucket structure of the present invention is set to full negative pressure and grasps
The cooling pars infrasegmentalis of the shaft furnace of work；Slot 1, peripheral groove 3, stiffener plate 4 and straight pipe 6 are enclosed including interior, inside encloses slot 1 and peripheral groove 3
Between be fixedly connected by multiple stiffener plates 4 for being uniformly arranged in the circumferential direction；Slot 1 is enclosed in described and peripheral groove 3 all has greatly
Under small bell-mouth structure of air, between the two there is uniform gap to form cooling air channel 7；The top of slot 1 is inside enclosed higher than outer
The top of slot 3 is enclosed, so that top annular air inlet is formed on the top in cooling air channel 7；The bottom for inside enclosing slot 1 is higher than periphery
The bottom of slot 3, so that base circle air inlet is formed on the bottom in cooling air channel 7；The bottom of peripheral groove 3 and straight pipe 6
Connection.
The top that slot 1 is enclosed in described sets inlet flange 2, is bolted with the outlet(discharge) flange of shaft furnace bottom coohng section.
The peripheral groove 3 is circumferentially arranged with multiple hand holes 5.
The straight pipe 6 with shaft furnace discharging device entrance for connecting.
The horizontal cross sectional geometry that slot 1 and peripheral groove 3 are enclosed in described is rectangle or circle.
As shown in figure 3, a kind of working method of double horn mouth formula shaft furnace kiln bottom discharge bucket structure, comprising: cooling
Air enters cooling air channel 7 by top annular air inlet, then enters shaft furnace cooling section bottom from base circle air inlet
Portion from bottom to top cools down material 8 in kiln；The material 8 calcined passes through shaft furnace discharging device after cooling section is cooling
Discharging；Multiple hand holes 5 that peripheral groove 3 is circumferentially arranged, for carrying out block clearing operation in cooling air channel blockage.
Following embodiment is implemented under the premise of the technical scheme of the present invention, gives detailed embodiment and tool
The operating process of body, but protection scope of the present invention is not limited to following embodiments.Method therefor is such as without spy in following embodiments
Not mentionleting alone bright is conventional method.
[embodiment]
By taking the discharge bucket that cross section is square as an example, previous discharge bucket be single layer structure, the outlet of 4 blocks of coaming plates directly with
Welding at the top of straight pipe distinguishes wide-bore in the middle and lower part of coaming plate, then welds the diameter of several uniform intervals arrangements in tapping
The spacing of identical round bar, round bar is less than material minimum lumpiness, ventilation hole of the gap as material cooling wind.Due to this
Ventilation hole is directly contacted with material, and after producing a period of time, the gap between round bar will be filled by material, and have few portion
Divide material that can be also fallen on other work tops from disposed at air vent, destory the scene production environment；It divulges information and unsmooth causes kiln discharge object
Expect temperature drift, the accident for burning finished belt conveyer caused to occur, reach shaft furnace can not and produce,
As shown in Figure 1-Figure 3, a kind of specific structure of double horn mouth formula shaft furnace kiln bottom discharge bucket structure is such as in the present embodiment
Under: slot 1, which is enclosed, in discharge bucket is made of coaming plate in 4 pieces；The peripheral groove 3 of discharge bucket is made of 4 pieces of peripheral boards, and straight pipe 6 is by 4 pieces
Steel plate composition；It inside encloses and sets 16 pieces of stiffener plates 4 between slot 1 and peripheral groove 3, and be evenly distributed；On 4 faces of discharge bucket respectively
If hand hole 5.
The inlet flange 2 of slot 1 is enclosed in discharge bucket and shaft furnace cooling section end outlet flange is bolted；In 4 pieces
Coaming plate is first welded into up big and down small bell shape, then welds with inlet flange 2.4 pieces of peripheral boards are first welded into up big and down small
Bell shape, then welded with the straight pipe 6 being welded by 4 blocks of steel plates.16 pieces of stiffener plates 4 enclose 1 outside of slot rationally inside
It is distributed and welds, then welded with the inside of peripheral groove 3, since then, discharge bucket completes.
Using discharging bucket structure of the present invention, cooling air can move smoothly through cooled gas path 7 into shaft furnace
It is interior, it can either guarantee being fully cooled for material 8, and cooling air channel 7 and 8 down going channel of material are non-interference, 8 energy of material
It enough passes through discharge bucket to enter in shaft furnace discharging device, will not drain on other work tops；Thoroughly solves existing discharging
Material cooling effect existing for bucket ventilation opening is bad, frequent material leakage or blocking and the problem of burn out finished belt machine.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of double horn mouth formula shaft furnace kiln bottom discharge bucket structure, set on the cooling pars infrasegmentalis of the shaft furnace of full negative-pressure operation；It is special
Sign is, including it is interior enclose slot, peripheral groove, stiffener plate and straight pipe, inside enclose between slot and peripheral groove by circumferentially uniformly setting
The multiple stiffener plates set are fixedly connected；Enclose slot in described and peripheral groove all have up big and down small bell-mouth structure of air, the two it
Between have uniform gap formed cooling air channel；The top for inside enclosing slot is higher than the top of peripheral groove, thus in cooling air
Top annular air inlet is formed on the top in channel；The bottom for inside enclosing slot is higher than the bottom of peripheral groove, thus in cooling air channel
Bottom formed base circle air inlet；The bottom of peripheral groove is connect with straight pipe.
2. a kind of double horn mouth formula shaft furnace kiln bottom discharge bucket structure according to claim 1, which is characterized in that enclosed in described
Inlet flange is set at the top of slot, is bolted with the outlet(discharge) flange of shaft furnace bottom coohng section.
3. a kind of double horn mouth formula shaft furnace kiln bottom discharge bucket structure according to claim 1, which is characterized in that the periphery
Slot is circumferentially arranged with multiple hand holes.
4. a kind of double horn mouth formula shaft furnace kiln bottom discharge bucket structure according to claim 1, which is characterized in that the straight tube
Section with shaft furnace discharging device entrance for connecting.
5. a kind of double horn mouth formula shaft furnace kiln bottom discharge bucket structure according to claim 1, which is characterized in that enclosed in described
The horizontal cross sectional geometry of slot and peripheral groove is rectangle or circle.
6. a kind of working method of double horn mouth formula shaft furnace kiln bottom discharge bucket structure as described in claim 1, which is characterized in that
Include: that cooling air by top annular air inlet enters cooling air channel, then enters shaft furnace from base circle air inlet
Cooling section bottom from bottom to top cools down material in kiln；The material calcined is gone out after cooling section is cooling by shaft furnace
Expect device discharging；Multiple hand holes that peripheral groove is circumferentially arranged, for carrying out block clearing operation in cooling air channel blockage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811288886.9A CN109307427A (en) | 2018-10-31 | 2018-10-31 | A kind of double horn mouth formula shaft furnace kiln bottom discharge bucket structure and its working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811288886.9A CN109307427A (en) | 2018-10-31 | 2018-10-31 | A kind of double horn mouth formula shaft furnace kiln bottom discharge bucket structure and its working method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109307427A true CN109307427A (en) | 2019-02-05 |
Family
ID=65222677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811288886.9A Pending CN109307427A (en) | 2018-10-31 | 2018-10-31 | A kind of double horn mouth formula shaft furnace kiln bottom discharge bucket structure and its working method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109307427A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110736352A (en) * | 2019-10-31 | 2020-01-31 | 马鞍山楚锐科技信息咨询有限公司 | Horizontal movement hopper with air cooling function |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH70150A (en) * | 1914-07-02 | 1915-09-01 | Torfentgasung Stauber Ges Mit | Furnace for the production of ammonia from mud, stillage, sea silt, peat and the like |
| GB1451374A (en) * | 1972-10-17 | 1976-09-29 | Kloeckner Humboldt Deutz Ag | Device for the thermal treatment of granular and/or lumpy materials |
| US4728288A (en) * | 1986-12-22 | 1988-03-01 | Niems Lee H | Apparatus for uniformly cooling pyroprocessed particulate material |
| RU2117226C1 (en) * | 1997-01-31 | 1998-08-10 | Федор Петрович Васин | Plant for drying loose materials, mainly grain |
| JP2002079027A (en) * | 2000-09-06 | 2002-03-19 | Nkk Corp | Exhaust gas cooling tower with dust collecting part |
| KR20130075032A (en) * | 2011-12-27 | 2013-07-05 | 재단법인 포항산업과학연구원 | Apparatus for cooling sintered ore |
| CN106091703A (en) * | 2016-08-17 | 2016-11-09 | 大峘集团有限公司 | A kind of two-part agglomerates of sintered pellets chiller |
| CN209166066U (en) * | 2018-10-31 | 2019-07-26 | 中冶焦耐(大连)工程技术有限公司 | A kind of double horn mouth formula shaft furnace kiln bottom discharge bucket structure |
-
2018
- 2018-10-31 CN CN201811288886.9A patent/CN109307427A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH70150A (en) * | 1914-07-02 | 1915-09-01 | Torfentgasung Stauber Ges Mit | Furnace for the production of ammonia from mud, stillage, sea silt, peat and the like |
| GB1451374A (en) * | 1972-10-17 | 1976-09-29 | Kloeckner Humboldt Deutz Ag | Device for the thermal treatment of granular and/or lumpy materials |
| US4728288A (en) * | 1986-12-22 | 1988-03-01 | Niems Lee H | Apparatus for uniformly cooling pyroprocessed particulate material |
| RU2117226C1 (en) * | 1997-01-31 | 1998-08-10 | Федор Петрович Васин | Plant for drying loose materials, mainly grain |
| JP2002079027A (en) * | 2000-09-06 | 2002-03-19 | Nkk Corp | Exhaust gas cooling tower with dust collecting part |
| KR20130075032A (en) * | 2011-12-27 | 2013-07-05 | 재단법인 포항산업과학연구원 | Apparatus for cooling sintered ore |
| CN106091703A (en) * | 2016-08-17 | 2016-11-09 | 大峘集团有限公司 | A kind of two-part agglomerates of sintered pellets chiller |
| CN209166066U (en) * | 2018-10-31 | 2019-07-26 | 中冶焦耐(大连)工程技术有限公司 | A kind of double horn mouth formula shaft furnace kiln bottom discharge bucket structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110736352A (en) * | 2019-10-31 | 2020-01-31 | 马鞍山楚锐科技信息咨询有限公司 | Horizontal movement hopper with air cooling function |
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