CN105910127A - Novel small-caliber corundum composite coal injection pipe - Google Patents
Novel small-caliber corundum composite coal injection pipe Download PDFInfo
- Publication number
- CN105910127A CN105910127A CN201610339651.2A CN201610339651A CN105910127A CN 105910127 A CN105910127 A CN 105910127A CN 201610339651 A CN201610339651 A CN 201610339651A CN 105910127 A CN105910127 A CN 105910127A
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- CN
- China
- Prior art keywords
- injection pipe
- coal injection
- combined coal
- corundum
- layer
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2203/00—Feeding arrangements
- F23K2203/10—Supply line fittings
- F23K2203/101—Wear protection devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles (AREA)
Abstract
The invention discloses a novel small-caliber corundum composite coal injection pipe which comprises a first composite coal injection pipe body. The first composite coal injection pipe body is connected with a second composite coal injection pipe body through a connecting device. Grooves are formed in the left end of the first composite coal injection pipe body and the left end of the second composite coal injection pipe body. Protrusions are arranged at the right end of the first composite coal injection pipe body and the right end of the second composite coal injection pipe body. The first composite coal injection pipe body and the second composite coal injection pipe body are each formed by an anti-corrosion layer, a steel layer, a transition layer, a heat-resisting hexsteel, a fireproof layer, an expansion joint, a ceramic layer and a corundum layer. The ceramic layers are arranged on the outer sides of the corundum layers. The expansion joints are arranged on the outer sides of the ceramic layers. The fireproof layers are arranged on the outer sides of the expansion joints. The heat-resisting hexsteels are arranged on the outer sides of the fireproof layers. The transition layers are arranged on the outer sides of the heat-resisting hexsteels. The steel layers are arranged on the outer sides of the transition layers. The anti-corrosion layers are arranged on the outer sides of the steel layers. The novel small-caliber corundum composite coal injection pipe has excellent wear resistance, heat resistance and mechanical and heat shock resistance, and connection of the pipe is convenient by arranging a connector.
Description
Technical field
The present invention relates to compound coal injection pipe technical field, be specially a kind of novel small-bore corundum and be combined coal injection pipe.
Background technology
At present, technology generally used now is typically utilized in the heat resisting pipe upper refractory material of coal injection pipe.This just requires that castable to be provided simultaneously with good fire resistance and good wearability.But, most domestic mould material has preferable fire resistance, but wearability is poor.The general castable life-span is typically only 3 months, sometimes uses within several days, will must repair or change because castable falls block peeling.Because castable is integrated poured on the steel pipe of burner coal injection pipe, changes every time and repairing is required for, by burner integral demounting and installation, so having a strong impact on the normal operation of production line.Castable is damaged, and the steel construction of coal injection pipe also can be caused to damage.
Summary of the invention
It is an object of the invention to provide a kind of novel small-bore corundum and be combined coal injection pipe, with the problem solving to propose in above-mentioned background technology.
nullFor achieving the above object，The present invention provides following technical scheme: a kind of novel small-bore corundum is combined coal injection pipe，It is combined coal injection pipe including first、Second is combined coal injection pipe and corundum layer，Described first is combined coal injection pipe is combined coal injection pipe with second is connected by attachment means，Described first is combined coal injection pipe and second is combined coal injection pipe left end and is internally provided with groove，And first be combined coal injection pipe and second and be combined coal injection pipe right-hand member and be provided with projection，Described first is combined coal injection pipe and second is combined coal injection pipe by corrosion-resistant coating、Steel layer、Transition zone、Heat-resisting hexsteel、Flame retardant coating、Dilatation joint、Ceramic layer and corundum layer composition，And outside corundum layer, it is provided with ceramic layer，Dilatation joint it is provided with outside ceramic layer，Flame retardant coating it is provided with outside dilatation joint，Heat-resisting hexsteel it is provided with outside flame retardant coating，It is provided with transition zone outside heat-resisting hexsteel，Steel layer it is provided with outside transition zone，Corrosion-resistant coating it is provided with outside steel layer.
Preferably, described first is combined coal injection pipe and second is combined coal injection pipe two ends and is provided with annular boss, described attachment means is provided with and coordinates the annular groove installed with annular boss.
Preferably, described projection is provided with external screw thread, described groove is provided with female thread.
Preferably, it is filled with High-Alumina cellucotton inside described heat-resisting hexsteel.
Compared with prior art, the invention has the beneficial effects as follows: the present invention is by arranging corundum layer, steel layer and flame retardant coating, it is made to have the resistance to mechanical of excellence and thermal shock resistance properties, by arranging dilatation joint, and dilatation joint employs elastic inserts, ceramic layer and flame retardant coating are combined compact, will not slide, by arranging projection and groove so that it is connect tightr, and pass through corrosion-resistant coating, make its antiseptic property be greatly reinforced, compare with traditional coal injection pipe, extend service life and the time between overhauls(TBO) of coal injection pipe, reduce cost, the effect of energy-saving and emission-reduction.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the horizontal section structural representation of the present invention；
Fig. 3 is the longitudinal profile structural representation of the present invention；
In figure: 1-annular boss；2-first is combined coal injection pipe；3-attachment means；4-second is combined coal injection pipe；5-is protruding；6-groove；7-female thread；8-external screw thread；9-corrosion-resistant coating；10-steel layer；11-transition zone；The heat-resisting hexsteel of 12-；13-flame retardant coating；14-dilatation joint；15-ceramic layer；16-corundum layer.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
nullRefer to Fig. 1-3，A kind of embodiment that the present invention provides: a kind of novel small-bore corundum is combined coal injection pipe，It is combined coal injection pipe 2 including first、Second is combined coal injection pipe 4 and corundum layer 16，First is combined coal injection pipe 2 is combined coal injection pipe 4 by attachment means 3 with second and is connected，First is combined coal injection pipe 2 and second is combined coal injection pipe 4 left end and is internally provided with groove 6，And first be combined coal injection pipe 2 and second and be combined coal injection pipe 4 right-hand member and be provided with protruding 5，First is combined coal injection pipe 2 and second is combined coal injection pipe 4 by corrosion-resistant coating 9、Steel layer 10、Transition zone 11、Heat-resisting hexsteel 12、Flame retardant coating 13、Dilatation joint 14、Ceramic layer 15 and corundum layer 16 form，And outside corundum layer 16, it is provided with ceramic layer 15，Dilatation joint 14 it is provided with outside ceramic layer 15，Flame retardant coating 13 it is provided with outside dilatation joint 14，Heat-resisting hexsteel 12 it is provided with outside flame retardant coating 13，It is provided with transition zone 11 outside heat-resisting hexsteel 12，Steel layer 10 it is provided with outside transition zone 11，Corrosion-resistant coating 9 it is provided with outside steel layer 10，First is combined coal injection pipe 2 and second is combined coal injection pipe 4 two ends and is provided with annular boss 1，It is provided with in attachment means 3 and coordinates the annular groove installed with annular boss 1，It is provided with external screw thread 8 on protruding 5，Female thread 7 it is provided with on groove 6，Heat-resisting hexsteel 12 is internal is filled with High-Alumina cellucotton.
Specifically used mode: in present invention work, it is combined coal injection pipe 2 and second to be combined coal injection pipe 4 be connected first with projection 5 by groove 6, and added be solidly connected, by corundum layer 16, steel layer 10 and flame retardant coating 13 by attachment means 3 so that it is there are resistance to mechanical and the thermal shock resistance properties of excellence, by arranging dilatation joint 14, and dilatation joint 14 employs elastic inserts so that ceramic layer 15 and flame retardant coating 13 combine compact, will not slide, and by corrosion-resistant coating 9 so that it is antiseptic property is greatly reinforced.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and without departing from the spirit or essential characteristics of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is limited by claims rather than described above, it is intended that all changes fallen in the implication of equivalency and scope of claim included in the present invention.Should not be considered as limiting involved claim by any reference in claim.
Claims (4)
- null1. a novel small-bore corundum is combined coal injection pipe，It is combined coal injection pipe (2) including first、Second is combined coal injection pipe (4) and corundum layer (16)，It is characterized in that: described first is combined coal injection pipe (2) is combined coal injection pipe (4) is connected by attachment means (3) with second，Described first is combined coal injection pipe (2) and second is combined coal injection pipe (4) left end and is internally provided with groove (6)，And first be combined coal injection pipe (2) and second and be combined coal injection pipe (4) right-hand member and be provided with projection (5)，Described first is combined coal injection pipe (2) and second is combined coal injection pipe (4) by corrosion-resistant coating (9)、Steel layer (10)、Transition zone (11)、Heat-resisting hexsteel (12)、Flame retardant coating (13)、Dilatation joint (14)、Ceramic layer (15) and corundum layer (16) composition，And corundum layer (16) outside is provided with ceramic layer (15)，Ceramic layer (15) outside is provided with dilatation joint (14)，Dilatation joint (14) outside is provided with flame retardant coating (13)，Flame retardant coating (13) outside is provided with heat-resisting hexsteel (12)，Heat-resisting hexsteel (12) outside is provided with transition zone (11)，Transition zone (11) outside is provided with steel layer (10)，Steel layer (10) outside is provided with corrosion-resistant coating (9).
- The novel small-bore corundum of one the most according to claim 1 is combined coal injection pipe, it is characterized in that: described first is combined coal injection pipe (2) and second is combined coal injection pipe (4) two ends and is provided with annular boss (1), described attachment means (3) is provided with and coordinates the annular groove installed with annular boss (1).
- The novel small-bore corundum of one the most according to claim 1 is combined coal injection pipe, it is characterised in that: it is provided with external screw thread (8) in described projection (5), described groove (6) is provided with female thread (7).
- The novel small-bore corundum of one the most according to claim 1 is combined coal injection pipe, it is characterised in that: described heat-resisting hexsteel (12) is internal is filled with High-Alumina cellucotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610339651.2A CN105910127A (en) | 2016-05-23 | 2016-05-23 | Novel small-caliber corundum composite coal injection pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610339651.2A CN105910127A (en) | 2016-05-23 | 2016-05-23 | Novel small-caliber corundum composite coal injection pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105910127A true CN105910127A (en) | 2016-08-31 |
Family
ID=56749525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610339651.2A Pending CN105910127A (en) | 2016-05-23 | 2016-05-23 | Novel small-caliber corundum composite coal injection pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105910127A (en) |
-
2016
- 2016-05-23 CN CN201610339651.2A patent/CN105910127A/en active Pending
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160831 |
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| WD01 | Invention patent application deemed withdrawn after publication |