CN208886824U - The fire-resistant layer structure of burner hearth in direct combustion hotblast stove - Google Patents
The fire-resistant layer structure of burner hearth in direct combustion hotblast stove Download PDFInfo
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- CN208886824U CN208886824U CN201820683248.6U CN201820683248U CN208886824U CN 208886824 U CN208886824 U CN 208886824U CN 201820683248 U CN201820683248 U CN 201820683248U CN 208886824 U CN208886824 U CN 208886824U
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- heat
- stainless steel
- steel plate
- resistance stainless
- burner hearth
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 27
- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 22
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 75
- 239000010935 stainless steel Substances 0.000 claims abstract description 74
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000011248 coating agent Substances 0.000 claims abstract description 35
- 238000000576 coating method Methods 0.000 claims abstract description 35
- 239000003063 flame retardant Substances 0.000 claims abstract description 35
- 239000000835 fiber Substances 0.000 claims abstract description 13
- 239000012634 fragment Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000035939 shock Effects 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 7
- 239000010410 layer Substances 0.000 description 18
- 239000010426 asphalt Substances 0.000 description 5
- 239000011449 brick Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011819 refractory material Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The fire-resistant layer structure of burner hearth in a kind of direct combustion hotblast stove, include heat-resistance stainless steel plate and refractory fiber floor, the heat-resistance stainless steel plate is set to internal layer, the refractory fiber floor is between heat-resistance stainless steel plate and furnace enclosure body, and the heat-resistance stainless steel plate only passes through nut and more than half ball screw nut is fastenedly connected to furnace enclosure body, the heat-resistance stainless steel plate is fragment setting, 2 or more heat-resistance stainless steel plates are equipped in the circumferencial direction of burner hearth flame retardant coating, equally carry out fragment setting in the heat-resistance stainless steel plate of the axis direction of burner hearth flame retardant coating；The fire-resistant layer structure of burner hearth can effectively improve the thermal shock resistance and resist chemical performance of flame retardant coating in the direct combustion hotblast stove of the utility model as a result, moreover it is possible to which the weight for reducing flame retardant coating prevents heat-resistance stainless steel plate temperature distortion.
Description
Technical field
The utility model relates to burner hearths in the fire resisting technical field of hearth of hot-blast stove more particularly to a kind of direct combustion hotblast stove
Fire-resistant layer structure.
Background technique
In bituminous mixing plant industry, due to the popularization and application of reclaimed asphalt mixture (RAP), direct combustion hotblast stove is used
Heating, drying is carried out to waste asphalt pavement reclaimed materials and has obtained more use.The job specification that station is mixed due to dripping, to hot wind
Furnace burner hearth heatproof is of less demanding, i.e. temperature≤650 DEG C, but the refractory material of burner hearth is needed to have good thermal shock resistance, and
It is able to take bitumen flue gas and a small amount of fuel oil corrodes.Burner hearth weight should not be too large simultaneously, otherwise to the installation of equipment and maintenance
Cause difficulty.
Current hot wind oven refractory be made of using refractory brick or castable refractory, its advantage is that heat-resisting quantity is good,
But thermal shock resistance and resistance to chemical corrosion are poor, and the big weight of autologous density is high, and installation maintenance is inconvenient.At present in use, burner hearth
Flame retardant coating needs overhaul in 1~2 month primary, this causes great inconvenience, and higher cost.
For this purpose, the designer of the utility model, in view of drawbacks described above, by concentrating on studies and designing, synthesis is long-term for many years
It is engaged in the experience and achievement of related industry, researching and designing goes out a kind of fire-resistant layer structure of burner hearth in direct combustion hotblast stove, to overcome
Drawbacks described above.
Utility model content
The purpose of this utility model is to provide a kind of fire-resistant layer structure of burner hearth in direct combustion hotblast stove, structure letters
It is single, it is easy to loading and unloading, improve thermal shock resistance, the resist chemical performance of flame retardant coating, moreover it is possible to effectively reduce weight.
To achieve the above object, the utility model discloses a kind of fire-resistant layer structure of burner hearth in direct combustion hotblast stove, packets
Plate containing heat-resistance stainless steel and refractory fiber floor, it is characterised in that:
The heat-resistance stainless steel plate is set to internal layer, and the refractory fiber floor is located at heat-resistance stainless steel plate and furnace enclosure body
Between, and the heat-resistance stainless steel plate only passes through nut and more than half ball screw nut is fastenedly connected to furnace enclosure body；
The heat-resistance stainless steel plate be fragment setting, burner hearth flame retardant coating circumferencial direction equipped with 2 or more it is heat-resisting not
Become rusty steel plate, equally carries out fragment setting in the heat-resistance stainless steel plate of the axis direction of burner hearth flame retardant coating, heat-resisting on axis direction
Stainless steel plate length is 1000mm~1500mm.
Wherein: heat-resistance stainless steel plate, nut and more than half ball screw nut are SUS310S material.
Wherein: being equipped with 3-5 piece heat-resistance stainless steel plate in the circumferencial direction of burner hearth flame retardant coating.
Wherein: the heat-resistance stainless steel plate is taken on burner hearth flame retardant coating axis direction along the direction of advance of flame
It connects, i.e. for the lateral overlap of rear heat-resistance stainless steel plate on the inside of front heat-resistance stainless steel plate, the lap of splice is 30~80mm.
Wherein: the heat-resistance stainless steel plate is taken on burner hearth flame retardant coating circumferencial direction along the direction of rotation of flame
It connects, i.e. for the lateral overlap of rear heat-resistance stainless steel plate on the inside of front heat-resistance stainless steel plate, the lap of splice is 30~80mm.
Wherein: every heat-resistance stainless steel plate passes through the nut and more than half round end spiral shell of three equidistant intervals of an at least row and every row
Bolt is fastenedly connected.
By above structure it is found that the fire-resistant layer structure of burner hearth has following effect in the direct combustion hotblast stove of the utility model
Fruit:
(1) thermal shock resistance of flame retardant coating is improved --- hearth of hot-blast stove is using heat-resistance stainless steel plate and refractory fibre system
At, fire box temperature be no more than 650 DEG C in the case where, possess good thermal shock resistance, avoid traditional refractory material because of urgency
Cold anxious hot and generation destruction.
(2) resist chemical performance --- the surface using heat-resistance stainless steel as flame retardant coating for improving flame retardant coating, in furnace
In the case that bore temperature is no more than 650 DEG C, bitumen flue gas and a small amount of oil droplet will not generate serious destruction to heat-resistance stainless steel plate, mention
The high resist chemical performance of flame retardant coating.
(3) reduce the weight of flame retardant coating --- compared to refractory brick or castable refractory, heat-resistance stainless steel plate and fire resisting are fine
Dimension, which is made, can be greatly lowered machine weight.
(4) heat-resistance stainless steel plate temperature distortion is prevented --- metal material exists 6 heat-resistance stainless steel plates vulnerable to thermal deformation
It is laid with, and is connect using 10 more than half ball screw nuts with 8 furnace enclosure bodies, mutual solderless binding on 7 refractory fibres
Structure, and reserved expansion space.
(5) facilitate the installation and maintenance of burner hearth flame retardant coating --- compared to refractory brick or castable refractory, this patent flame retardant coating
Structure construction is simple and fast, and construction cost is low.
The detailed content of the utility model can be obtained by aftermentioned explanation and institute's attached drawing.
Detailed description of the invention
Fig. 1 shows the overall schematic of the direct combustion hotblast stove using the utility model fire-resistant layer structure.
Fig. 2 shows the rearview of the direct combustion hotblast stove burner hearth using the utility model fire-resistant layer structure.
Fig. 3 shows the sectional view of fire-resistant layer structure in the utility model.
Fig. 4 is the partial enlarged view I in Fig. 3.
Fig. 5 shows the cross-sectional view of fire-resistant layer structure in the utility model.
The partial enlarged view that Fig. 6 is in Fig. 5 III.
The partial enlarged view that Fig. 7 is in Fig. 5 II.
Appended drawing reference:
Specific embodiment
Specific implementation of the patent mode is further described with reference to the accompanying drawings and examples, following embodiment is only used
In clearly illustrating the technical solution of this patent, and it cannot be used as a limitation the protection scope of limitation this patent.
Direct combustion hotblast stove is divided into two large divisions, i.e. burner 2 and burner hearth 3 as seen from Figure 1, Figure 2, and fuel passes through burner
2 burn in burner hearth 3, and generate required hot wind.Wherein combustion air (First air) enters from combustion air inlet 1,
Cold wind (Secondary Air) enters from cold wind import 5, and the hot wind of generation carries out heating baking to material from hot-blast outlet 4 into drying room
It is dry.
Burning and hot wind generating process due to direct combustion hotblast stove all carry out in burner hearth 3, this just need to burner hearth 3 into
Row fire resisting construction, i.e. setting flame retardant coating.
The fire-resistant layer structure of burner hearth such as attached drawing 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 institute in direct combustion hotblast stove in the utility model
Show, it includes heat-resistance stainless steel plate 6 and refractory fiber floor 7, the heat-resistance stainless steel plate 6 is set to internal layer, the refractory fibre
Layer 7 is between heat-resistance stainless steel plate 6 and furnace enclosure body 8, and the heat-resistance stainless steel plate 6 is not connected by welding to furnace
Thorax outer housing 8, and be fastenedly connected by nut 9 and more than half ball screw nut 10 to furnace enclosure body 8.
It is laid with refractory fiber floor in the inside of furnace enclosure body 8 as a result, plays thermal insulation function.Due to refractory fibre
The characteristic of 7 heat shrinkable of layer, so it needs pre-pressing in process of deployment, and compression side and the center line of burner hearth 2 are in the same direction, vertically
It should not be compressed in burner hearth axial direction.
After the completion of refractory fiber floor 7 is laid with, then carry out the laying of heat-resistance stainless steel plate 6.Due to fire box temperature maximum temperature
650 DEG C, and heat-resistance stainless steel plate 6 is flame retardant coating surface layer, temperature distortion and the destruction that generates, heat-resistance stainless steel plate 6 in order to prevent
Laying not can be carried out any welding operation.
Wherein, heat-resistance stainless steel plate 6, nut 9 and more than half ball screw nut 10 are preferably SUS310S material.And in order to heat-resisting
Stainless steel plate 6 has good expanded by heating space when heated, and the heat-resistance stainless steel plate 6 is fragment setting, in burner hearth fire resisting
The circumferencial direction of layer is equipped with 2 or more heat-resistance stainless steel plates 6, is preferably 3~5 heat-resistance stainless steel plates 6 in circumference.In burner hearth
The heat-resistance stainless steel plate 6 of the axis direction of flame retardant coating equally carries out fragment setting, 6 length of heat-resistance stainless steel plate on axis direction
Preferably 1000mm~1500mm.
Fig. 4 is the partial enlarged view I in Fig. 3, notices that the fragment of heat-resistance stainless steel plate 6 in figure is set as fragment overlap joint side
Formula, on burner hearth flame retardant coating axis direction, each heat-resistance stainless steel plate 6 is taken along the direction of advance of flame (combustion air)
It connects, i.e., for the lateral overlap of rear heat-resistance stainless steel plate 6 on the inside of front heat-resistance stainless steel plate 6, the lap of splice is preferably 30
~80mm.
Fig. 7 is the partial enlarged view III in Fig. 5, notices that the fragment of heat-resistance stainless steel plate 6 in figure is set as fragment overlap joint side
Formula, on burner hearth flame retardant coating circumferencial direction, each heat-resistance stainless steel plate 6 is taken along the direction of rotation of flame (combustion air)
It connects, i.e., for the lateral overlap of rear heat-resistance stainless steel plate 6 on the inside of front heat-resistance stainless steel plate 6, the lap of splice is preferably 30
~80mm.
Wherein, every heat-resistance stainless steel plate 6 passes through the nut 9 and more than half round end of three equidistant intervals of an at least row and every row
Bolt 10 is fastenedly connected, and connection more fastening is effective.
Note that the fire-resistant layer structure of this patent direct combustion hotblast stove, it can be preferably suitable for the straight of fire box temperature≤650 DEG C
Burning type hot-air furnace burner hearth.
It is the advantages of the fire-resistant layer structure of burner hearth in the direct combustion hotblast stove of the utility model as a result:
(1) thermal shock resistance of flame retardant coating is improved --- hearth of hot-blast stove is using heat-resistance stainless steel plate and refractory fibre system
At, fire box temperature be no more than 650 DEG C in the case where, possess good thermal shock resistance, avoid traditional refractory material because of urgency
Cold anxious hot and generation destruction.
(2) resist chemical performance --- the surface using heat-resistance stainless steel as flame retardant coating for improving flame retardant coating, in furnace
In the case that bore temperature is no more than 650 DEG C, bitumen flue gas and a small amount of oil droplet will not generate serious destruction to heat-resistance stainless steel plate, mention
The high resist chemical performance of flame retardant coating.
(3) reduce the weight of flame retardant coating --- compared to refractory brick or castable refractory, heat-resistance stainless steel plate and fire resisting are fine
Dimension, which is made, can be greatly lowered machine weight.
(4) heat-resistance stainless steel plate temperature distortion is prevented --- metal material exists 6 heat-resistance stainless steel plates vulnerable to thermal deformation
It is laid with, and is connect using 10 more than half ball screw nuts with 8 furnace enclosure bodies, mutual solderless binding on 7 refractory fibres
Structure, and reserved expansion space.
(5) facilitate the installation and maintenance of burner hearth flame retardant coating --- compared to refractory brick or castable refractory, this patent flame retardant coating
Structure construction is simple and fast, and construction cost is low.
It is readily apparent that above description and record is only citing rather than in order to limit the disclosure of the utility model
Content, application or use.Although describing and being described in the accompanying drawings embodiment, the utility model in embodiment
Do not limit by attached drawing example and be described as in embodiment it is now recognized that optimal mode to implement the religion of the utility model
The specific examples led, the scope of the utility model will include any implementation for falling into the description and appended claims of front
Example.
Claims (6)
1. the fire-resistant layer structure of burner hearth in a kind of direct combustion hotblast stove includes heat-resistance stainless steel plate and refractory fiber floor, feature
It is:
The heat-resistance stainless steel plate is set to internal layer, the refractory fiber floor be located at heat-resistance stainless steel plate and furnace enclosure body it
Between, and the heat-resistance stainless steel plate only passes through nut and more than half ball screw nut is fastenedly connected to furnace enclosure body；
The heat-resistance stainless steel plate is fragment setting, is equipped with 2 or more heat-resistance stainless steels in the circumferencial direction of burner hearth flame retardant coating
Plate equally carries out fragment setting in the heat-resistance stainless steel plate of the axis direction of burner hearth flame retardant coating, heat-resisting stainless on axis direction
Steel plate length is 1000mm~1500mm.
2. the fire-resistant layer structure of burner hearth in direct combustion hotblast stove as described in claim 1, it is characterised in that: heat-resistance stainless steel
Plate, nut and more than half ball screw nut are SUS310S material.
3. the fire-resistant layer structure of burner hearth in direct combustion hotblast stove as described in claim 1, it is characterised in that: in burner hearth flame retardant coating
Circumferencial direction be equipped with 3-5 piece heat-resistance stainless steel plate.
4. the fire-resistant layer structure of burner hearth in direct combustion hotblast stove as described in claim 1, it is characterised in that: described heat-resisting stainless
Steel plate is overlapped on burner hearth flame retardant coating axis direction along the direction of advance of flame, i.e. the outside of rear heat-resistance stainless steel plate
It is overlapped on the inside of front heat-resistance stainless steel plate, the lap of splice is 30~80mm.
5. the fire-resistant layer structure of burner hearth in direct combustion hotblast stove as described in claim 1, it is characterised in that: described heat-resisting stainless
Steel plate is overlapped on burner hearth flame retardant coating circumferencial direction along the direction of rotation of flame, i.e. the outside of rear heat-resistance stainless steel plate
It is overlapped on the inside of front heat-resistance stainless steel plate, the lap of splice is 30~80mm.
6. the fire-resistant layer structure of burner hearth in direct combustion hotblast stove as described in claim 1, it is characterised in that: every heat-resisting stainless
Steel plate is fastenedly connected by the nut and more than half ball screw nut of three equidistant intervals of an at least row and every row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820683248.6U CN208886824U (en) | 2018-05-09 | 2018-05-09 | The fire-resistant layer structure of burner hearth in direct combustion hotblast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820683248.6U CN208886824U (en) | 2018-05-09 | 2018-05-09 | The fire-resistant layer structure of burner hearth in direct combustion hotblast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208886824U true CN208886824U (en) | 2019-05-21 |
Family
ID=66492874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820683248.6U Active CN208886824U (en) | 2018-05-09 | 2018-05-09 | The fire-resistant layer structure of burner hearth in direct combustion hotblast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208886824U (en) |
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2018
- 2018-05-09 CN CN201820683248.6U patent/CN208886824U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240403 Address after: No. 12 Yinghua Road, Yongqing Industrial Park, Yongqing County, Langfang City, Hebei Province, 065699 Patentee after: LANGFANG D&G MACHINERY TECHNOLOGY Co.,Ltd. Country or region after: China Address before: No.12, Yinghua Road, Yongqing Industrial Park, Langfang City, Hebei Province 065699 Patentee before: LANGFANG AOBISHEN THERMAL ENERGY TECHNOLOGY CO.,LTD. Country or region before: China |