CN205718426U - Rotary kiln combustion chamber - Google Patents
Rotary kiln combustion chamber Download PDFInfo
- Publication number
- CN205718426U CN205718426U CN201620323912.7U CN201620323912U CN205718426U CN 205718426 U CN205718426 U CN 205718426U CN 201620323912 U CN201620323912 U CN 201620323912U CN 205718426 U CN205718426 U CN 205718426U
- Authority
- CN
- China
- Prior art keywords
- combustion chamber
- barrier wall
- rotary kiln
- chamber body
- wall
- 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
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 59
- 230000008676 import Effects 0.000 claims abstract description 15
- 230000004888 barrier function Effects 0.000 claims description 69
- 239000000428 dust Substances 0.000 abstract description 15
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 13
- 239000003546 flue gas Substances 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 4
- 238000001556 precipitation Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 239000002918 waste heat Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 5
- 238000013517 stratification Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 239000003500 flue dust Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000011329 calcined coke Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004062 sedimentation 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
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/30—Arrangements of partitions
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
Abstract
The utility model discloses a rotary kiln combustion chamber, include the combustion chamber body and connect respectively the import and the export of two different ends of combustion chamber body, the combustion chamber body stretches out from the inner wall towards the air current passageway and has blockked the wall. The utility model discloses an it has the wall of blockking to extend on the inner wall of combustion chamber body, can block the air current of process at air flow channel, and the air current collides corresponding wall of blockking and produces the back, has increased the distance that the air current flows to reduced its flow velocity, improved the combustion rate of the abundant volatile that does not burn in flue gas and the dust in the air current, and at this internal degree of precipitation of combustion chamber, reduced the deposit effect in the exhaust-heat boiler.
Description
Technical field
This utility model relates to rotary kiln technical field, particularly relates to a kind of rotary kiln combustion chamber.
Background technology
In electrolytic aluminium charcoal prime system is united, raw material is entered by kiln tail, and in kiln, the material after high-temperature calcination enters cooler from kiln hood by mobile chute.During, relying on air-introduced machine negative pressure, flue gas and part dust include that the sufficient volatile matter of unburned is transferred to kiln after-burner second-time burning, then enter waste heat boiler.
Raw material fully burns becomes calcined coke, if and burning house dust and volatile matter can not fully burn or deposit, waste heat boiler will be entered, cause the easy dust stratification of boiler too much, cause boiler pressure reduction bigger than normal, affect safe operation, cause shutdown of boiler, rotary kiln is forced to stop kiln, and life-span of kiln liner therefore suffers from damage.
At present in rotary kiln body design, using expansion chamber after middle-size and small-size rotary kiln, expansion chamber can fully realize dust deposit, but in being difficult to flue gas, volatile matter burns again, it is impossible to improves utilization rate of waste heat.Generally using combustor after large-sized rotary kiln kiln, combustor can realize volatile matter second-time burning in flue gas, increases flue-gas temperature, improves utilization rate of waste heat, it is achieved cogeneration.
But straight tube combustor is U.S. tall and erect kiln patented technology after large-sized rotary kiln.The know-why of combustor is dust and all second-time burnings in combustor of unburned volatile matter.U-shaped combustor is because air line distance is less than U.S. tall and erect kiln combustor, in actual production, owing to dust is flowed in the lump by flue gas, although part dust and volatile matter fully can burn in U-shaped combustor, but still have a lot of dust to be flowed in waste heat boiler by flue gas, cause Economizer of Heat Recovery Boiler dust stratification serious.The shortest need 1 month just blowing out stops kiln cleaning dust stratification.Cause rotary kiln start-stop time to increase, whole line balancing or even inner liner of rotary kiln are all caused extreme influence.
Utility model content
The deficiency existed in view of prior art, this utility model provides a kind of rotary kiln combustion chamber, can reduce the deposition effect in waste heat boiler, it is ensured that boiler pressure reduction and properly functioning and protect inner liner of rotary kiln.
In order to realize above-mentioned purpose, this utility model have employed following technical scheme:
A kind of rotary kiln combustion chamber, including combustion chamber body and the inlet and outlet being connected to described two different ends of combustion chamber body, described combustion chamber body is extended with barrier wall from inwall on gas channel.
Preferably, described combustion chamber body includes that at least three sections are bent to form, and described import and described outlet are respectively arranged on two ends of described combustion chamber body.
Or, described combustion chamber body is straight barrel type.
Preferably, described barrier wall is perpendicular to airflow direction.
Preferably, at least one described barrier wall tilts towards described Way out.
Preferably, described barrier wall is multiple, and the height of at least one described barrier wall is different from other described barrier wall.
Preferably, described rotary kiln combustion chamber includes the barrier wall being positioned in the middle part of an inwall and is positioned at the barrier wall both sides at described middle part and respectively close to described import and the barrier wall of described outlet, and the barrier wall height at described middle part is minimum.
Preferably, at least two inwall of the both sides of the airflow direction of described combustion chamber body is equipped with described barrier wall.
Preferably, the described barrier wall on relative two inwall of described combustion chamber body is spaced in the direction of the air flow and is arranged alternately.
Preferably, the described barrier wall on relative two inwall of described combustion chamber body is overlapping being perpendicular on airflow direction.
This utility model is by being extended with barrier wall on the inwall of combustion chamber body, at gas channel, the air-flow of process can be stopped, produce after the corresponding barrier wall of airflow collision and turn back, add the distance of air current flow, and reduce its flowing velocity, the combustion rate of the sufficient volatile matter of unburned that improve in air-flow in flue gas and dust, and its precipitation degree in combustion chamber body, reduce the deposition effect in waste heat boiler.
Accompanying drawing explanation
Fig. 1 is the structural representation of the combustor of this utility model embodiment 1.
Fig. 2 is the structural representation of the combustor of this utility model embodiment 2.
Fig. 3 is the structural representation of the combustor of this utility model embodiment 3.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further described.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
Embodiment 1
Refering to Fig. 1, the rotary kiln combustion chamber of the present embodiment includes combustion chamber body 10 and the import of 10 two the different ends that are connected to combustion chamber body 11 and outlet 12, and combustion chamber body 10 is extended with barrier wall 13 from inwall on gas channel.
Preferably, the combustion chamber body 10 of the present embodiment is U-shaped, including the horizontal segment 10a for being fixed on the supporting parts such as ground and vertical entrance 10b, the outlet section 10c of horizontal segment 10a two side roof part, import 11 and outlet 12 are respectively communicated with entrance 10b and outlet section 10c in the two ends of combustion chamber body 10, flue gas and the part dust discharged from rotary kiln enter combustor from entrance 10b, it is expelled to waste heat boiler from outlet section 10c after horizontal segment 10a second-time burning, by improving flue-gas temperature, utilization rate of waste heat can be increased.
Preferably, barrier wall 13 is multiple, and each barrier wall 13 is each perpendicular to the airflow direction X of its place respective section, air-flow is made to have the most direct blocking effect, air-flow major part after being blocked is perpendicular to barrier wall 13 reverse flow, forms convection current with the air-flow flowed into below, reduces air-flow velocity.Further, the height of at least one barrier wall 13 is different from other barrier wall 13.Here, the horizontal segment 10a of rotary kiln combustion chamber includes the barrier wall 13 being positioned in the middle part of an inwall and barrier wall 13 both sides being positioned at middle part and respectively close to import 11 and the barrier wall 13 of outlet 12, and the barrier wall 13 at middle part is minimum.The barrier wall 13 at two ends is higher than middle barrier wall 13, the air-flow making two ends has just enter into horizontal segment 10a can faster be stopped by barrier wall, after turning back with the inwall of end near the barrier wall 13 of import 11, barrier wall 13 in the middle part of airflow passes, accelerate to turn back after the minimum barrier wall 13 making gas accelerate the most close outlet 12 of collision of the barrier wall 13 at middle part, again form violent collision with air-flow below to slow down, increase the flow path of air-flow and slow down its flow velocity, also extend the time of second-time burning simultaneously, improve efficiency of combustion.Meanwhile, each barrier wall 13 all can produce exhumation, and can play the particulate matter stopped in the flue gas of precipitation and part dust and waft the most everywhere role.
Preferably barrier wall 13 height at middle part is 1.3m, barrier wall 13 near import 11 and outlet 12 is highly 2.5m, horizontal segment 10a builds near the end of import 11 24cm thickness fire brick layer, barrier wall 13 is the fire brick layer that 37cm is thick, the barrier wall 13 of close import 11 is away from its nearest end about 3.8m, and the barrier wall 13 of close outlet 12 is away from its nearest end about 3.5m.
Such as table 1 below, the parameter comparison situation for before and after arranging barrier wall 13 at the horizontal segment 10a diapire of U-shaped combustion chamber body 10:
According to this chart it can be seen that after barrier wall arranges, A, temperature of kiln head reduce, calcining belt temperature controls stable, and combustor exit temperature substantially reduces 50-1000C, all in design load.B, kiln hood and kiln tail vacuum cavitations are stable, and main induced draft fan frequency reduces about 10HZ, stable before relatively implementing, and economize on electricity is substantially.In C, flue gas, Dust Capacity significantly reduces, and Economizer of Heat Recovery Boiler dust stratification reduces in a large number, from original each two moon deashing once, is reduced at least can run four months deashings.
The inwall of the horizontal segment 10a bottom that the present embodiment illustrate only U-shaped combustion chamber body 10 is provided with the situation of barrier wall 13, it is to be understood that the entrance 10b of U-shaped combustion chamber body 10, outlet section 10c can also be provided with corresponding barrier wall 13.This barrier wall 13 is applied equally to the combustion chamber body of other shapes, such as serpentine, Z-shaped, " W " shape, " V " shape and straight barrel type etc..
Embodiment 2
Such as Fig. 2, as different from Example 1, at least one barrier wall 13 of the present embodiment tilts towards exporting 12 directions.As, barrier wall 13 near import 11 tilts towards import 11, its top inner wall of end adjacent thereto forms the space of reducing, the air-flow circuitous path after this barrier wall 13 enters this reducing flowed into from import 11 extends again, in like manner, tilt to be formed with adjacent barrier wall 13 or inner wall of end adjacent thereto the space of reducing near outlet 12 barrier wall 13, extend the path of corresponding site, indirectly extend burning and sedimentation time.
Embodiment 3
Such as Fig. 3, as different from Example 1, two inwalls of the horizontal segment 10a of the airflow direction X of the combustion chamber body 10 of the present embodiment are equipped with barrier wall 13.It addition, two inwalls of entrance 10b, outlet section 10c also can be equipped with barrier wall 13.
Here, the barrier wall 13 on the upper wall of horizontal segment 10a and diapire is spaced on airflow direction X and is arranged alternately, i.e. barrier wall 13 on the two is staggeredly arranged on airflow direction X.Preferably, the barrier wall 13 on the two inwall is overlapping being perpendicular on airflow direction X, i.e. barrier wall 13 on the two partly overlaps in the direction of extension, forms circuitous path, increases the collision frequency of air-flow and barrier wall 13 collision frequency and air-flow and air-flow.
This utility model is by being extended with barrier wall on the inwall of combustion chamber body, at gas channel, the air-flow of process can be stopped, produce after the corresponding barrier wall of airflow collision and turn back, add the distance of air current flow, and reduce its flowing velocity, the combustion rate of the sufficient volatile matter of unburned that improve in air-flow in flue gas and dust, and its precipitation degree in combustion chamber body, reduce the deposition effect in waste heat boiler.This technology possesses versatility what U-shaped combustor was applied, is suitable for all large-sized rotary kiln combustor, is available for Tan Su enterprise and the real use of aluminium electrolysis enterprise of domestic newly-built large-sized rotary kiln, it is possible to for occasion similar in other industry, possess fine promotional value.
The above is only the detailed description of the invention of the application; it should be pointed out that, for those skilled in the art, on the premise of without departing from the application principle; can also make some improvements and modifications, these improvements and modifications also should be regarded as the protection domain of the application.
Claims (10)
1. a rotary kiln combustion chamber, it is characterised in that include combustion chamber body (10) and be connected to
The import (11) of described (10) two different ends of combustion chamber body and outlet (12), described combustion chamber body
(10) on gas channel, it is extended with barrier wall (13) from inwall.
Rotary kiln combustion chamber the most according to claim 1, it is characterised in that described combustion chamber body (10)
Being bent to form including at least three sections, described import (11) and described outlet (12) are respectively arranged on described burning
Two ends of room body (10).
Rotary kiln combustion chamber the most according to claim 1, it is characterised in that described combustion chamber body (10)
For straight barrel type.
Rotary kiln combustion chamber the most according to claim 1, it is characterised in that described barrier wall (13)
It is perpendicular to airflow direction.
Rotary kiln combustion chamber the most according to claim 1, it is characterised in that at least one described stop
Wall (13) tilts towards described outlet (12) direction.
6. according to the arbitrary described rotary kiln combustion chamber of claim 1-5, it is characterised in that described barrier wall
(13) it is multiple, and the height of at least one described barrier wall (13) is different from other described barrier wall
(13)。
Rotary kiln combustion chamber the most according to claim 6, it is characterised in that include being positioned at an inwall
Middle part barrier wall (13) and be positioned at described middle part barrier wall (13) both sides and respectively close to described enter
Mouth (11) and the barrier wall (13) of described outlet (12), the barrier wall (13) at described middle part is minimum.
Rotary kiln combustion chamber the most according to claim 6, it is characterised in that described combustion chamber body (10)
At least two inwall of both sides of airflow direction be equipped with described barrier wall (13).
Rotary kiln combustion chamber the most according to claim 8, it is characterised in that described combustion chamber body (10)
Relative two inwall on described barrier wall (13) be spaced in the direction of the air flow and be arranged alternately.
Rotary kiln combustion chamber the most according to claim 9, it is characterised in that described combustion chamber body
(10) the described barrier wall (13) on relative two inwall is overlapping being perpendicular on airflow direction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620323912.7U CN205718426U (en) | 2016-04-18 | 2016-04-18 | Rotary kiln combustion chamber |
| PCT/CN2016/091987 WO2017181548A1 (en) | 2016-04-18 | 2016-07-28 | Rotary kiln combustion chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620323912.7U CN205718426U (en) | 2016-04-18 | 2016-04-18 | Rotary kiln combustion chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205718426U true CN205718426U (en) | 2016-11-23 |
Family
ID=57296919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620323912.7U Expired - Fee Related CN205718426U (en) | 2016-04-18 | 2016-04-18 | Rotary kiln combustion chamber |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN205718426U (en) |
| WO (1) | WO2017181548A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108826630A (en) * | 2018-06-12 | 2018-11-16 | 福建优净星环境科技有限公司 | A kind of stealthy wind outlet unit of efficient degerming |
| CN109282641A (en) * | 2018-08-28 | 2019-01-29 | 江苏金牛环保工程设备有限公司 | A kind of solid abraum salt pyrolitic oxidation rotary kiln special |
| CN111486471A (en) * | 2019-07-25 | 2020-08-04 | 国家电投集团黄河上游水电开发有限责任公司 | Combustion chamber damping device |
| CN114452722A (en) * | 2021-12-27 | 2022-05-10 | 杰瑞环保科技有限公司 | Thermal desorption equipment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0880431A (en) * | 1994-09-13 | 1996-03-26 | Mitsui Eng & Shipbuild Co Ltd | Moving bed device |
| JPH10267238A (en) * | 1997-03-25 | 1998-10-09 | Nikko Kinzoku Kk | Incineration method of industrial waste containing organic chlorine compound and a incinerator for implementing the same |
| JP2001226110A (en) * | 2000-02-17 | 2001-08-21 | Yoji Hirai | Device and method for manufacturing activated carbon |
| CN102745925B (en) * | 2012-07-20 | 2014-09-03 | 息烽捷浪建材开发有限公司 | Rotary kiln for ardealite calcination |
-
2016
- 2016-04-18 CN CN201620323912.7U patent/CN205718426U/en not_active Expired - Fee Related
- 2016-07-28 WO PCT/CN2016/091987 patent/WO2017181548A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108826630A (en) * | 2018-06-12 | 2018-11-16 | 福建优净星环境科技有限公司 | A kind of stealthy wind outlet unit of efficient degerming |
| CN108826630B (en) * | 2018-06-12 | 2023-12-19 | 福建优净星环境科技有限公司 | Invisible air outlet device for efficient sterilization |
| CN109282641A (en) * | 2018-08-28 | 2019-01-29 | 江苏金牛环保工程设备有限公司 | A kind of solid abraum salt pyrolitic oxidation rotary kiln special |
| CN111486471A (en) * | 2019-07-25 | 2020-08-04 | 国家电投集团黄河上游水电开发有限责任公司 | Combustion chamber damping device |
| CN114452722A (en) * | 2021-12-27 | 2022-05-10 | 杰瑞环保科技有限公司 | Thermal desorption equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017181548A1 (en) | 2017-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205718426U (en) | Rotary kiln combustion chamber | |
| CN109405276A (en) | A kind of straw bundle burning boiler cleaning heating system | |
| CN109719105A (en) | A kind of blower exhaust duster | |
| CN103574594B (en) | Combustion heat supplying system taking living beings as fuel | |
| CN204830454U (en) | Many return strokes living beings hot -blast furnace | |
| CN204214129U (en) | Smokeless biomass thermal pipe boiler | |
| CN207050484U (en) | Multifunctional cupola gas cooler | |
| CN105090921A (en) | Energy-saving environmentally-friendly steam boiler | |
| CN206338929U (en) | Energy-saving environmental protection boiler | |
| CN202581781U (en) | Split type high-efficiency flue and water reflux heating boiler | |
| CN209131150U (en) | A kind of more backhaul plates of S type expansion change formula liner | |
| CN205373013U (en) | Coal -burning air heater | |
| CN106422532B (en) | Cleaning shaft spark blowout | |
| CN202013015U (en) | Vertical half gas positive burning heating boiler | |
| CN204943883U (en) | A kind of heating boiler of hot tail gas Heat Treatment device | |
| CN205782844U (en) | A kind of Utility Boiler Superheater | |
| CN108266733A (en) | Decanter type dual firing chamber | |
| CN106122947B (en) | A kind of pulverized-coal fired boiler soot blower system | |
| CN205843029U (en) | Many backhauls back firing boiler | |
| CN213543246U (en) | Cement kiln head waste heat boiler and cement line grate cooler integrated device | |
| CN205480967U (en) | Combustor gas recirculation boiler structure | |
| CN204345599U (en) | A kind of spray denitration boiler with expansion chamber | |
| CN104654567B (en) | Three sections of heat exchange type hot-blast stoves | |
| CN204042947U (en) | Biomass-burning stove waste heat recovery dust arrester | |
| CN207049964U (en) | A kind of new self-supporting chimney |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180921 Address after: 810008 No. 54 West Road, Xining, Qinghai 43 Co-patentee after: HUANGHE XINYE Co.,Ltd. Patentee after: Huanghe Hydropower Development Co., Ltd. Address before: 810008 No. 54 West Road, Xining, Qinghai 43 Patentee before: Huanghe Hydropower Development Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20190418 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |