CN206387268U - The prefabricated brick structure in hot air duct windward side - Google Patents
The prefabricated brick structure in hot air duct windward side Download PDFInfo
- Publication number
- CN206387268U CN206387268U CN201621313463.4U CN201621313463U CN206387268U CN 206387268 U CN206387268 U CN 206387268U CN 201621313463 U CN201621313463 U CN 201621313463U CN 206387268 U CN206387268 U CN 206387268U
- Authority
- CN
- China
- Prior art keywords
- hot air
- windward
- air duct
- prefabricated brick
- brick structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model is related to pelletizing production hot air duct apparatus field, especially a kind of prefabricated brick structure in hot air duct windward side.Technical problem to be solved is to provide a kind of solution pipeline windward side not resistance to erosion, so as to extend the prefabricated brick structure in hot air duct windward side of pipeline windward side service life, including at least two hot air ducts, pass through chamber windward between the hot air duct, also include prefabricated brick structure, the preformed bricks structure setting is on the windward side of chamber inner wall windward, hot blast in the chamber windward is first into chamber windward, then after blowing on prefabricated brick structure, then discharged by another hot air duct.The utility model extends pipeline windward side service life, and general service life reaches more than 3 years, while decreasing the repair time, saved cost of overhaul use, it is ensured that production is smoothed out.The utility model is particularly suitable for use among wash away phenomenon more serious hot air duct structure.
Description
Technical field
The utility model is related to pelletizing production hot air duct apparatus field, especially a kind of hot air duct windward side preformed bricks
Structure.
Background technology
In pelletizing production technique, hot air duct is mainly used in technique productions, it is ensured that drying grate, rotary kiln, central cooler three are big
The thermal current of main equipment is exchanged, and meets pelletizing process operation requirement.Common hot air duct is main by drying grate backheat airduct
A few part compositions of road, central cooler backheat wind pipeline, wherein, drying grate backheat wind pipeline is influenceed by main exhauster and backheat blower fan
It is larger.At present, the heat-insulation layer design of hot air duct is mainly that V45 commonly anchors nail welding tube wall, then sprays spray paint, is incubated
Layer effective thickness 60mm or so.The wear-resisting spray paint main performance intensity 35Mpa of PZS, 0.8 × 10-5m/m DEG C of thermal coefficient of expansion,
900 DEG C of temperature in use, from current service condition, influences larger because pipeline is washed away by airflow dust, the punching of tube wall windward side
Brush is serious, basic all to be washed away using 3 months former heat-insulation layers, causes tube wall steel plate is exposed to puncture, influences thermal operating, shuts down
Processing influence pellet output, adds the cost of overhaul.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of solution pipeline windward side not resistance to erosion, so as to extend
The prefabricated brick structure in hot air duct windward side of pipeline windward side service life.
The utility model solves the technical scheme that its technical problem used：The prefabricated brick structure in hot air duct windward side,
It is described pre- by chamber windward, in addition to prefabricated brick structure between the hot air duct including at least two hot air ducts
Brickmaking structure setting is on the windward side of chamber inner wall windward, and the hot blast in the chamber windward is first into chamber windward
It is interior, after then blowing on prefabricated brick structure, then discharged by another hot air duct.
It is further, including installation bolt that the prefabricated brick structure is arranged at chamber inner wall windward by installation bolt.
It is further to be provided with thick rock wool between the chamber inner wall windward and prefabricated brick structure.
It is further to be provided with refractory wass at the brickwork joint in the prefabricated brick structure.
It is further to be provided with heat-insulation layer on the wall of chamber inner wall windward.
It is further that the seam crossing between the heat-insulation layer and prefabricated brick structure is provided with spray coating structure.
The beneficial effects of the utility model are：The utility model to original structure in the case where changing very little, for existing
Have the pipeline windward side occurred in structure not resistance to erosion the problem of targetedly improved.By setting up prefabricated brick structure,
The resistance to erosion ability of windward side is enhanced first, next, by the design to prefabricated brick structure, also allow in prefabricated brick structure
The progress of Portable safety is changed when occurring needing to change after washing away excessively.Structure of the present utility model, extends pipeline windward side
Service life, general service life reaches more than 3 years, while decreasing the repair time, has saved cost of overhaul use, it is ensured that
What is produced is smoothed out.The utility model is particularly suitable for use among wash away phenomenon more serious hot air duct structure.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that the utility model watches obtained view along hot blast inflow direction.
Marked in figure：Prefabricated brick structure 1, installation bolt 11, hot air duct 2, windward side 3, windward hot blast 4, chamber 5.
Embodiment
The utility model is further illustrated below in conjunction with the accompanying drawings.
The prefabricated brick structure in hot air duct windward side as shown in Figure 1 and Figure 2, including at least two hot air ducts 2, the heat
Connected between wind pipeline 2 by chamber 5 windward, in addition to prefabricated brick structure 1, the prefabricated brick structure 1 is arranged at chamber 5 windward
On the windward side 3 of inwall, the hot blast 4 in the chamber windward 5 is first into chamber 5 windward, then blows to preformed bricks knot
After on structure 1, then discharged by another hot air duct 2.
In actually transformation, first by two sections of existing drying grate preheating, preheated one-section, the former heat-insulation layer in section windward side is drained
All remove, the artificial deburring of surrounding, the polishing steel plate exposed is clean, while by the bolt hole of installation bolt 11 away from existing with quantity
Tube wall positioning marking, after the mark positioning of all bore hole sizes, cutting impurity is removed in the then perforate on tube wall with gas welding.One
As, preferably when installing installation bolt 11, tube wall and the thick rock wools of brick underfill 2mm are connected between fastening, brickwork joint
Tamped with refractory wass, it is ensured that flue gas must not scurry into brickwork joint, to protect tube wall indeformable.After all preformed bricks are installed,
By brick and former heat-insulation layer seam crossing spray treatment during spraying pipeline.After pipeline temperature rise, due to thermal expansion, it need to be incited somebody to action in pipeline outer wall
Bolt is re-secured one time, it is ensured that preformed bricks are preferably contacted with tube wall, can preferably protect tube wall not by airflow scouring.By chain
Comb machine preheat two sections, one section, drain all pipeline windward sides of section and be all transformed into installation preformed bricks, current using effect is good.
In addition, as the prefabricated brick structure 1 of the utility model key component, its preferred material is corundum brick, corundum brick
Main performance should be met：Compressive resistance >=100 (Mpa) (110 DEG C × 24h), refractoriness under load >=1570 DEG C, its thickness
80mm, width 150mm, length 400mm are advisable.Every piece of brick bottom pre-installs 4 M12 bolts, then opens bolt hole in tube wall, will
Preformed bricks are directly installed on tube wall, are connected by screw bolts, and 20 pieces of preformed bricks are installed in each windward side, and remaining position is still using original
Heat-insulation layer, improves pipeline windward side heat-insulation layer service life.
Claims (6)
1. lead between the prefabricated brick structure in hot air duct windward side, including at least two hot air ducts (2), the hot air duct (2)
Cross chamber (5) connection windward, it is characterised in that：Including prefabricated brick structure (1), the prefabricated brick structure (1) is arranged at chamber windward
On the windward side (3) of room (5) inwall, the hot blast (4) in the chamber windward (5) is first into chamber (5) windward, then
After blowing on prefabricated brick structure (1), then pass through the discharge of another hot air duct (2).
2. the prefabricated brick structure in hot air duct windward side as claimed in claim 1, it is characterised in that：Including installation bolt (11),
The prefabricated brick structure (1) is arranged at chamber (5) inwall windward by installation bolt (11).
3. the prefabricated brick structure in hot air duct windward side as claimed in claim 1 or 2, it is characterised in that：The chamber windward (5)
Thick rock wool is provided between inwall and prefabricated brick structure (1).
4. the prefabricated brick structure in hot air duct windward side as claimed in claim 1 or 2, it is characterised in that：The prefabricated brick structure
(1) refractory wass is provided with the brickwork joint in.
5. the prefabricated brick structure in hot air duct windward side as claimed in claim 1 or 2, it is characterised in that：The chamber windward (5)
Heat-insulation layer is provided with inwall wall.
6. the prefabricated brick structure in hot air duct windward side as claimed in claim 5, it is characterised in that：The heat-insulation layer and preformed bricks
Seam crossing between structure (1) is provided with spray coating structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621313463.4U CN206387268U (en) | 2016-12-02 | 2016-12-02 | The prefabricated brick structure in hot air duct windward side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621313463.4U CN206387268U (en) | 2016-12-02 | 2016-12-02 | The prefabricated brick structure in hot air duct windward side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206387268U true CN206387268U (en) | 2017-08-08 |
Family
ID=59489246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621313463.4U Expired - Fee Related CN206387268U (en) | 2016-12-02 | 2016-12-02 | The prefabricated brick structure in hot air duct windward side |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206387268U (en) |
-
2016
- 2016-12-02 CN CN201621313463.4U patent/CN206387268U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170808 Termination date: 20211202 |