CN206146174U - Internal heating muffle formula rotary kiln furnace wall - Google Patents
Internal heating muffle formula rotary kiln furnace wall Download PDFInfo
- Publication number
- CN206146174U CN206146174U CN201621049831.9U CN201621049831U CN206146174U CN 206146174 U CN206146174 U CN 206146174U CN 201621049831 U CN201621049831 U CN 201621049831U CN 206146174 U CN206146174 U CN 206146174U
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- rotary kiln
- layer
- hot
- air channel
- lining
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Abstract
The utility model discloses an internal heating muffle formula rotary kiln furnace wall, including rotary kiln compound incubation layer and rotary kiln operational layer, rotary kiln compound incubation layer includes two -layerly or the multi -layer insulation material layer, wherein: it for low heat conduction insulation material layer, is close to rotary kiln operational layer one side and is the high temperature resistant insulation material layer of high strength to be close to rotary kiln stove outer covering one side, the rotary kiln operational layer is built by laying bricks or stones by prefabricated brick or special -shaped brick combination and is formed, and its special character lies in: the internal brick body cavity of having seted up of brick of rotary kiln operational layer is adjacent brick body cavity makes up many hot air channel that become to run through whole rotary kiln furnace wall axis direction, many hot air channel communicates with hot air supply. Adopt above -mentioned structure, can realize the isolation of heating source and material, avoid the impurity in heating flame or the air current to pollute the material to because the heating source is located the internal portion of rotary kiln, high to the heat transfer efficiency of material, the hot gas flow flows and is recoverable, energy -concerving and environment -protective at rotary kiln furnace wall inner sealing.
Description
Technical field
This utility model is related to the calcination equipment of pellet roasting system, in particular to heating flame-insulating type kiln in one kind
Lining.
Background technology
Rotary kiln because its continuous prodution efficiency high, yield is big, burn till uniform many advantages, such as be widely used to Calx,
The production industry such as metallurgical briquetting and cement.Traditional rotary kiln with coal dust, heavy oil, coal gas or natural gas as fuel, burning spray gun
On burner hearth central axis, burned flame and thermal current directly contact burn till material, and the sulfur that carries in fuel, carbon etc. are various
Impurity can also penetrate into material.Additionally, the atmosphere in stove is not easy to be controlled to reducing atmosphere.Super-low sulfur low-carbon active lime and height
The production of quality metallurgical briquetting, has strict requirements to the content of impurity, also has higher requirement to the control climate in stove.
The Chinese invention patent of Application No. 201510078928.6 discloses a kind of entire body external heat flame-insulating type rotary kiln,
It is characterized in, using preheating section, the continuous external heat flame-insulating type coal-based rotary kiln of high temperature section entire body, making reducing atmosphere ten in rotary kiln
Divide abundance.Which arranges multiple stage heating furnace body outside cylinder of rotary kiln, and arranges burner group in heating furnace body both sides, makes rotary kiln cylinder
Body once forms preheating section, high temperature section and cooling section from front to back, mainly for the production of reduced iron.The problem master that the patent is present
Have：(1) heated from kiln external body using multigroup heating furnace, equipment is complicated；(2) add across rotary kiln monolithic lining
Heat, heat transfer efficiency are low, and energy consumption is big；In kiln, heating-up temperature can only achieve 1000-1150 DEG C；(3) external heat stove nozzle is only capable of making
With heated by gas, air quantity is restricted；(4) limited by mode of heating, rotary kiln furnace diameter is only capable of reachingSize is less, and yield is low, is not suitable for large-scale production.
The Chinese invention patent of Application No. 201510183390.5 discloses a kind of spiral rotary kiln, it is characterized in that using spiral shell
Rotation heating tube surrounds the skeleton of rotary kiln kiln body, and installs liner, heat-insulation layer and outer casing additional for which.The problem master that the patent is present
Have：(1) no firm furnace shell and furnace lining structure, only by heating tube as skeleton, limited load bearing capacities, it is impossible to carry out industry
Property production；(2), the heating-up temperature of heating tube is limited.
The Chinese utility model patent of Application No. 201420772371.7 discloses a kind of coking dividing wall type rotary kiln dress
Put, be characterized in installing air-introduced machine and aerator in the middle part of one or two air-introduced machines additional, kiln body is divided into inside and outside two burner hearths, makes thing
Material is separated with flue gas.The invention is due to using two burner hearths so that material furnace cross-sectional area is little, yields poorly, and heating-up temperature
It is limited, it is only used for the production of carbon containing coke chemicals.
The Chinese utility model patent of Application No. 201420382859.9 discloses a kind of rotary kiln air channel structure, and which is special
Point is to be provided with contraction mouth and in communication heat accumulation chamber near a section of kiln tail in rotary kiln body, and air outlet goes out to be provided with air-out
Pipe, which reduces heat smoke flow velocity, by extending the heat smoke time of staying so as to improving the accumulation of heat effect in rotary kiln and reducing cigarette
The content of scum in gas.Which is not related to furnace lining structure, does not also possess muffle function.
The Chinese utility model patent of Application No. 20142203047.3 is disclosed in a kind of thermal zone circular arc type of rotary kiln
Lining structure, in being characterized in the rotary kiln high temperature region at least fire brick layer of a ring, at least one piece refractory brick surface is arranged
There is circular arc type shape building block so as to be higher by other fire brick layer surfaces, the material in order to high-temperature region can be overturn with rotary kiln,
Which does not possess muffle function.
The Chinese utility model patent of Application No. 201420772378.9 discloses a kind of Heat storage type lime rotary kiln, its
Feature is, by arranging heat accumulation type preheater or precalciner warm-up combustion-supporting air, to reduce production cost using preheating, and which does not relate to
And furnace lining structure, do not possess muffle function yet.
The Chinese invention patent of Application No. 201310542855.2 discloses a kind of side of cylinder of rotary kiln inside lining building
Method, its feature are diametrically to be segmented cylinder of rotary kiln, then by refractory brick and castable refractory alternating build by laying bricks or stones but its not
Possesses muffle function.
The content of the invention
The purpose of this utility model seeks to the defect for overcoming existing kiln lining structure to exist, there is provided one kind can be real
The interior heating flame-insulating type kiln that existing heating source is isolated with material, avoids heating flame or impurities in airflow from polluting material
Lining.
For achieving the above object, the interior heating flame-insulating type rotary kiln furnace lining designed by this utility model, including rotary kiln is multiple
Heat-insulation layer and rotary kiln working lining are closed, the rotary kiln composite heat-insulating layer includes two-layer or multilayer insulant layer, wherein：It is close
Rotary kiln furnace shell side is low heat conductivity heat-insulating material layer, is high-strength high temperature-resistant insulation material near rotary kiln working lining side
Layer；The rotary kiln working lining is combined to build by laying bricks or stones by preformed bricks or special shaped brick and is formed, and which is characterized in that：The revolution firer
Make in the brick body of layer, to offer brick body cavity, adjacent brick body cavity combinations are into through whole rotary kiln furnace lining axis direction
A plurality of hot-air channel, a plurality of hot-air channel are connected with hot air source.
Preferably, a plurality of hot-air channel runs through whole kiln along rotary kiln furnace lining axis direction straight line
Lining, a plurality of hot-air channel is circumferentially uniformly distributed along burner hearth, a plurality of hot-air channel centrage and rotary kiln furnace lining axis
It is parallel.
Preferably, a plurality of hot-air channel spirals arrangement around burner hearth along rotary kiln working lining, described a plurality of
Hot-air channel center bus is overlapped with kiln body axis.
Further, the circular in cross-section of a plurality of, hot-air channel, oval sector, rectangle, triangle, rhombus
Or it is irregularly shaped.
Interior its rotary kiln working lining of heating flame-insulating type rotary kiln furnace lining designed by this utility model is by preformed bricks or different
The combination of shape brick is built by laying bricks or stones and is formed, and has cavity to be combined into a plurality of hot-air channel through whole rotary kiln body of heater axial direction furnace lining in brick body,
The combustion flame accelerated by blower system or high temperature gas flow are at a high speed by hot-air channel from the straight-through kiln tail steam of kiln tail heating source
Recovery system, heat energy can be recycled.
The utility model has the advantage of：Using above-mentioned interior heating flame-insulating type kiln lining structure, heating can be realized
Source is isolated with material, it is to avoid the impurity in heating flame or air-flow is polluted to material, and as heating source is located at turn around
Inside kiln body, high to the heat transfer efficiency of material, heating-up temperature is up to 1300 DEG C；Thermal current flows simultaneously in rotary kiln furnace lining inner sealing
Recyclable, furnace lining can also play thermal insulation function, and operation energy consumption is low；The structure turns round kiln body diameter up to more than 4000mm,
Yield is big；Applicable fuel extensively, in addition to coal gas, natural gas, can also use lance combustion coal dust.
Description of the drawings
Fig. 1 is rotary kiln furnace lining cross-sectional view of this utility model using through-type air channel.
Fig. 2 is rotary kiln furnace lining section mplifying structure schematic diagram of this utility model using circulating type air channel.
Fig. 3 is the vertical section structure schematic diagram of Fig. 1.
Fig. 4 is the vertical section structure schematic diagram of Fig. 2.
Specific embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1：
Fig. 1, the interior heating flame-insulating type rotary kiln furnace lining shown in 3, including rotary kiln composite heat-insulating layer 1 and rotary kiln work
Layer 2, rotary kiln composite heat-insulating layer 1 includes two-layer or multilayer insulant layer, wherein：It is low heat conduction near rotary kiln furnace shell side
Adiabator layer, is high-strength high temperature-resistant adiabator layer near 2 side of rotary kiln working lining；Insulation material can be poured using insulation
Material feeding, insulating brick or warming plate.
Rotary kiln working lining 2 is formed by the higher homogenizing brick of heat conductivity or compound brick masonry, rotary kiln working lining 2
Brick body cavity is offered in brick body, adjacent brick body cavity combinations are led to into a plurality of hot blast through whole rotary kiln furnace lining axis direction
Road 4, a plurality of hot-air channel 4 are connected with hot air source.Also composition hot-air channel 4 can be built by laying bricks or stones with special shaped brick is compound.Combustion flame adds
Thermal current is by a plurality of hot-air channel 4 from the straight-through kiln tail steam recovery system of kiln tail heating source.Composite brick, hot-air channel are adopted such as
4 are located near burner hearth high thermal conductivity coefficient material side once
In the present embodiment, furnace lining rectilinear direction runs through whole rotary kiln body of heater, a plurality of hot blast to a plurality of hot-air channel 4 vertically
Passage 4 is circumferentially uniformly distributed along burner hearth, and 4 centrage of a plurality of hot-air channel is parallel with kiln body axis.A plurality of hot-air channel 4
Circular in cross-section, ellipse, sector, rectangle, triangle, rhombus or irregularly shaped.The size of a plurality of hot-air channel 4 and
Section configuration according to the size of rotary kiln, the thickness of working lining and intensity, hot-fluid flow designing, to ensure that rotary kiln rotates
The structural strength of furnace lining under state.
Embodiment 2：
Fig. 2, the interior heating flame-insulating type rotary kiln furnace lining shown in 4, its population structure are substantially the same manner as Example 1, only
That hot-air channel 4 spirals arrangement around burner hearth along rotary kiln working lining 4 in the present embodiment, 4 center bus of a plurality of hot-air channel and
Kiln body axis overlap.The section of hot-air channel 4 is rounded.
Finally it is pointed out that above example is only the more representational example of this utility model.Obviously, this practicality is new
Type is not limited to above-described embodiment, can also have many deformations.It is every according to technical spirit of the present utility model to above example
Any simple modification, equivalent variations and the modification made, is considered as belonging to protection domain of the present utility model.
Claims (4)
1. flame-insulating type rotary kiln furnace lining, including rotary kiln composite heat-insulating layer (1) and rotary kiln working lining (2), institute are heated in one kind
Rotary kiln composite heat-insulating layer (1) is stated including two-layer or multilayer insulant layer, wherein：It is low heat conduction near rotary kiln furnace shell side
Adiabator layer, is high-strength high temperature-resistant adiabator layer near rotary kiln working lining (2) side；The rotary kiln working lining
(2) combine to build by laying bricks or stones by preformed bricks or special shaped brick and form, it is characterised in that：Open up in the brick body of the rotary kiln working lining (2)
Have a brick body cavity, adjacent brick body cavity combinations into a plurality of hot-air channel (4) through whole rotary kiln furnace lining axis direction,
The a plurality of hot-air channel (4) is connected with hot air source.
2. it is according to claim 1 it is interior heating flame-insulating type rotary kiln furnace lining, it is characterised in that：The a plurality of hot-air channel
(4) run through whole rotary kiln furnace lining along rotary kiln furnace lining axis direction straight line, a plurality of hot-air channel (4) is circumferential along furnace lining
Even distribution, a plurality of hot-air channel (4) centrage and rotary kiln furnace lining diameter parallel.
3. it is according to claim 1 it is interior heating flame-insulating type rotary kiln furnace lining, it is characterised in that：The a plurality of hot-air channel
(4) spiral arrangement around burner hearth along rotary kiln working lining (2).
4. the interior heating flame-insulating type rotary kiln furnace lining according to claim 1 or 2 or 3, it is characterised in that：The a plurality of hot blast
The circular in cross-section of passage (4), ellipse, sector, rectangle, triangle, rhombus or irregularly shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621049831.9U CN206146174U (en) | 2016-09-12 | 2016-09-12 | Internal heating muffle formula rotary kiln furnace wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621049831.9U CN206146174U (en) | 2016-09-12 | 2016-09-12 | Internal heating muffle formula rotary kiln furnace wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206146174U true CN206146174U (en) | 2017-05-03 |
Family
ID=58619525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621049831.9U Expired - Fee Related CN206146174U (en) | 2016-09-12 | 2016-09-12 | Internal heating muffle formula rotary kiln furnace wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206146174U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115574582A (en) * | 2022-10-28 | 2023-01-06 | 合肥工业大学 | Sectional type biomass continuous drying carbonization equipment |
-
2016
- 2016-09-12 CN CN201621049831.9U patent/CN206146174U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115574582A (en) * | 2022-10-28 | 2023-01-06 | 合肥工业大学 | Sectional type biomass continuous drying carbonization equipment |
| CN115574582B (en) * | 2022-10-28 | 2023-12-19 | 合肥工业大学 | Sectional biomass continuous drying and carbonizing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170629 Address after: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Patentee after: WUHAN IRON AND STEEL Co.,Ltd. Address before: 430083 Qingshan District, Hubei, Wuhan Patentee before: WUHAN IRON AND STEEL Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170503 Termination date: 20210912 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |