CN201487980U - Coal jetting pipe reinforced by refractory steel net - Google Patents
Coal jetting pipe reinforced by refractory steel net Download PDFInfo
- Publication number
- CN201487980U CN201487980U CN2009201866735U CN200920186673U CN201487980U CN 201487980 U CN201487980 U CN 201487980U CN 2009201866735 U CN2009201866735 U CN 2009201866735U CN 200920186673 U CN200920186673 U CN 200920186673U CN 201487980 U CN201487980 U CN 201487980U
- Authority
- CN
- China
- Prior art keywords
- coal powder
- powder injection
- jetting pipe
- heat
- steel mesh
- 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 - Lifetime
Links
Images
Landscapes
- Furnace Charging Or Discharging (AREA)
Abstract
The utility model discloses a coal jetting pipe reinforced by a refractory steel net, comprising a coal jetting pipe. The outside of the coal jetting pipe is welded with a connecting tooth; the outside of the connecting tooth is provided with a refractory material layer which is wrapped at the external wall of the coal jetting pipe; the coal jetting pipe is characterized in that the outside of the connecting tooth at the head of the coal jetting pipe is welded with the steel net; the coal jetting pipe is externally wrapped by the refractory material layer; and the connecting tooth and the refractory steel net are embedded in the refractory material layer. The induction of the refractory steel net increases the thermal vibration resistance of the protective sheath of the coal jetting pipe, solves the problems of peeling and cracking of the refractory material and prolongs the service life of the protective sheath of the coal jetting pipe; and the thickening of the refractory material layer plays a corresponding protection function to the refractory steel net, and simultaneously improves the washing wearability of the dust-contained airflow.
Description
Technical field
The utility model relates to manufacture of cement kiln servicing unit, specifically is to have the coal powder injection pipe that heat-resisting steel mesh is reinforced in a kind of manufacture of cement kiln.
Background technology
It is the key subjects of a cement producing line that solution coal powder injection pipe refractory protection overlaps service life always.Existing coal powder injection pipe refractory protection cover is to adopt at coal powder injection pipe outer wall to be welded with connection tooth and high-purity spinel refractory masses.Its advantage is: the chemical resistance of concrete excellent performance: use under the exceedingly odious alkali of cement kiln, chlorine, sulphur atmosphere, every construction is good, and the pour mass of normal sintering is when changing dismounting, its intensity all is well, and the situation that becomes loose because of chemical erosion does not take place.Its major defect is: change frequently at high temperature, use at the position that the temperature difference is bigger, shows cracking, influences service life.Above characteristics mainly are by the decision of the self-characteristic of product, also with service condition, construction quality bigger relation are arranged, from self-characteristic, the high-purity spinel material, the chemical resistance of concrete excellence, this is that general high aluminium material is incomparable, sintering strength is also very high.But because its thermal coefficient of expansion is bigger, thermal shock resistance is poor, and in the temperature frequent variations, the occasion that the temperature difference is bigger is used and then occurred the thermal shock crackle easily.As meeting constructional deficiency, mechanical damage again, then local shedding can appear.
The utility model content
The purpose of this utility model does not provide a kind of coal powder injection pipe that having of good thermal shock resistance, heat-resisting steel mesh was reinforced that has, and is easy to crack in the use, peel off, and is applicable to that high temperature changes frequent, difference variation position greatly and uses.
The technical solution of the utility model is as follows:
A kind of coal powder injection pipe that has heat-resisting steel mesh reinforcing, include the coal powder injection pipe, its coal powder injection pipe outside weld is connected to the connection tooth, connect tooth the refractory masses that is coated on coal powder injection pipe outer wall is arranged outward, the connection tooth external welding that it is characterized in that described coal powder injection tube head is connected with heat-resisting steel mesh, described coal powder injection pipe is coated with refractory masses, and described connection tooth and heat-resisting steel mesh all are embedded in the refractory masses.
The described coal powder injection pipe that has heat-resisting steel mesh reinforcing is characterized in that distance is 2-3cm between described heat-resisting steel mesh and the refractory masses outer wall; The height of described connection tooth is 6-7cm; The refractory material layer thickness of described coal powder injection tube head is 10-12cm, and described steel mesh is heat-resisting hexsteel.
Describedly have a heat-resisting coal powder injection pipe that heat-resisting steel mesh is reinforced, it is characterized in that described coal powder injection tube head is meant apart from 1.2 meters of coal powder injection pipe front ends with interior zone.
The heat resisting temperature of steel mesh will be controlled at below 1300 ℃.
The introducing of described heat-resisting steel mesh has increased the thermal shock resistance that sheath is guaranteed in coal powder injection, has solved shelling of refractory and the situation of crackle is arranged, and has improved the service life that sheath is guaranteed in coal powder injection.
The thickening of refractory masses is played corresponding protective effect to the heat resisting steel hexsteel, has improved the airflow scouring abrasiveness that contains dust simultaneously.
Description of drawings
Fig. 1 is the cutaway view that sheath is guaranteed in coal powder injection.
The specific embodiment
Have the coal powder injection pipe that heat-resisting steel mesh is reinforced, be coated with refractory masses 1 at the coal powder injection pipe, connection tooth 2 is embedded in the refractory masses 1 and with coal powder injection pipe 3 and is welded to connect, and connects tooth 2 outside welds and is connected to the steel mesh 4 that heatproof zone has the tortoise thyroid foramen, and it also is embedded in the refractory masses 1.The height that connects tooth 2 is 60mm, and the height of steel mesh 4 is 20mm, and distance is 20mm between the skin of steel mesh 4 and refractory masses 1 outer wall, and the length of refractory masses 1 is set to 1220mm.
Claims (3)
1. one kind has the coal powder injection pipe that heat-resisting steel mesh is reinforced, include the coal powder injection pipe, its coal powder injection pipe outside weld is connected to the connection tooth, connect tooth the refractory masses that is coated on coal powder injection pipe outer wall is arranged outward, the connection tooth external welding that it is characterized in that described coal powder injection tube head is connected with heat-resisting steel mesh, described coal powder injection pipe is coated with refractory masses, and described connection tooth and heat-resisting steel mesh all are embedded in the refractory masses.
2. the coal powder injection pipe that has heat-resisting steel mesh reinforcing according to claim 1 is characterized in that distance is 2-3cm between described heat-resisting steel mesh and the refractory masses outer wall; The height of described connection tooth is 6-7cm; The refractory material layer thickness of described coal powder injection tube head is 10-12cm, and described steel mesh is heat-resisting hexsteel.
3. according to claim 1ly have a coal powder injection pipe that heat-resisting steel mesh is reinforced, it is characterized in that described coal powder injection tube head is meant apart from 1.2 meters of the coal powder injection mouths of pipe with interior zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201866735U CN201487980U (en) | 2009-07-30 | 2009-07-30 | Coal jetting pipe reinforced by refractory steel net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201866735U CN201487980U (en) | 2009-07-30 | 2009-07-30 | Coal jetting pipe reinforced by refractory steel net |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201487980U true CN201487980U (en) | 2010-05-26 |
Family
ID=42426859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201866735U Expired - Lifetime CN201487980U (en) | 2009-07-30 | 2009-07-30 | Coal jetting pipe reinforced by refractory steel net |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201487980U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901114A (en) * | 2012-09-28 | 2013-01-30 | 长兴国盛耐火材料有限公司 | Coal injection pipe sheath |
| CN103265299A (en) * | 2013-04-17 | 2013-08-28 | 无锡远能耐火材料有限公司 | Andalusite corundum gunning mix |
| CN105526804A (en) * | 2016-01-07 | 2016-04-27 | 无锡远能耐火材料有限公司 | Andalusite corundum anti-dropping gunning refractory |
-
2009
- 2009-07-30 CN CN2009201866735U patent/CN201487980U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901114A (en) * | 2012-09-28 | 2013-01-30 | 长兴国盛耐火材料有限公司 | Coal injection pipe sheath |
| CN103265299A (en) * | 2013-04-17 | 2013-08-28 | 无锡远能耐火材料有限公司 | Andalusite corundum gunning mix |
| CN105526804A (en) * | 2016-01-07 | 2016-04-27 | 无锡远能耐火材料有限公司 | Andalusite corundum anti-dropping gunning refractory |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201487980U (en) | Coal jetting pipe reinforced by refractory steel net | |
| CN106116611A (en) | A kind of main trough of blast furnace working lining hot jetting material and preparation method thereof | |
| CN204174222U (en) | The repair structure of iron-making heat wind furnace hot air duct and repairing mould thereof | |
| CN100557166C (en) | A kind of ladle bottom construction method | |
| JP4308288B2 (en) | Outlet structure of melting furnace and repair method | |
| CN202562282U (en) | Reinforced-type composite fire-resistant brick | |
| CN202461495U (en) | Tundish cover with a composite structure | |
| CN105036775A (en) | Torpedo ladle slag line zone repair material | |
| CN104455930B (en) | There is the flue gas insulating tube of Lightweight high-strength heat-insulation refractory castable layer | |
| CN206666139U (en) | New Ai Qixun graphitizing furnaces burner | |
| CN109798772A (en) | A kind of construction method of rotary kiln end kiln tail inner lining refractory | |
| CN204816931U (en) | Compound anticorrosive wear -resisting high temperature resistant cyclone dust collection ware | |
| CN204286100U (en) | Hopper inner and outer ring side wall masonry construction | |
| CN104152633B (en) | Non-maintaining low-cost molten iron pretreatment spray lance and preparation method thereof | |
| CN202845770U (en) | Lining structure of molten iron tank opening | |
| CN201581092U (en) | Combined cooling wall | |
| CN201652399U (en) | Heat-resistant anchoring element assembly at head of coal injection pipe | |
| CN206488630U (en) | The streamlined air-cooled partition wall of heating furnace furnace roof | |
| CN204824765U (en) | Durable coal gasification stove oven keeps warm | |
| CN105091593A (en) | Heatproof steel anchoring part for cement rotary kiln | |
| CN204298416U (en) | A kind of preformed liner belly pipe | |
| CN203582897U (en) | Molten steel refining argon blowing gun | |
| CN203586810U (en) | Reinforced fixed wear-resistant precast brick | |
| CN202582187U (en) | High-temperature experiment heating furnace convenient to maintain | |
| CN203065497U (en) | Blast furnace swinging chute |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Zhengnan Inventor after: Guo Xingzhi Inventor before: Jiang Zhengnan Inventor before: Guo Xingzhi |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100526 |