CN202272892U - Silicon nitride-silicon carbide compounded ceramic wear-resistant inner lining for slag flushing trough of blast furnace - Google Patents
Silicon nitride-silicon carbide compounded ceramic wear-resistant inner lining for slag flushing trough of blast furnace Download PDFInfo
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- CN202272892U CN202272892U CN2011203098959U CN201120309895U CN202272892U CN 202272892 U CN202272892 U CN 202272892U CN 2011203098959 U CN2011203098959 U CN 2011203098959U CN 201120309895 U CN201120309895 U CN 201120309895U CN 202272892 U CN202272892 U CN 202272892U
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- inner lining
- silicon nitride
- blast furnace
- lining body
- silicon carbide
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Abstract
The utility model relates to a silicon nitride-silicon carbide compounded ceramic wear-resistant inner lining for a slag flushing trough of a blast furnace. The inner lining comprises an inner lining body, two standing plates and a flat plate, wherein a plurality of through holes are uniformly distributed on two side walls of the inner lining body respectively; the inner wall of the inner lining body adopts a U-shaped structure; the standing plates are arranged on the outer wall of the inner lining body; and the flat plate is arranged in the horizontal direction and is connected with the standing plates through a connection plate. The inner lining has the benefit that the service life of the slag flushing trough is prolonged effectively.
Description
Technical field
The utility model relates to a kind of blast furnace flush slag groove with silicon nitride combined silicon carbide ceramic wear-resisting liner.
Background technology
The cinder-flushing groove effect of iron-smelting blast furnace is that the high temperature furnace slag that blast furnace ironmaking is discharged is put in the granulating pit; Thereby slag is cooled off and separates; Its sluice is combined to form by outer lining and liner, and its liner should have high temperature resistant, anti-oxidant and anti-rapid heat cycle brute force and wash away characteristic.But all there is the deficiency of section in work-ing life in existing said structure.
The utility model content
The purpose of the utility model provides a kind of blast furnace flush slag groove with silicon nitride combined silicon carbide ceramic wear-resisting liner, to overcome the above-mentioned deficiency that exists in the prior art.
The purpose of the utility model is to realize through following technical scheme:
A kind of blast furnace flush slag groove is with silicon nitride combined silicon carbide ceramic wear-resisting liner; Comprise inner lining body; The some through holes of difference uniform distribution on two sidewalls of said inner lining body; The inwall of the inner lining body structure that takes the shape of the letter U, the riser of two vertical directions of outer wall of inner lining body and the flat board of horizontal direction constitute, and all are connected through web plate between two risers and the flat board.
The beneficial effect of the utility model is: the work-ing life that prolongs the flush slag groove effectively.
Description of drawings
According to accompanying drawing the utility model is done further explain below.
Fig. 1 is the vertical view of the described blast furnace flush slag of the utility model embodiment groove with the plastics main housing of silicon nitride combined silicon carbide ceramic wear-resisting liner;
Fig. 2 is the front view of the described blast furnace flush slag of the utility model embodiment groove with the plastics main housing of silicon nitride combined silicon carbide ceramic wear-resisting liner;
Fig. 3 is the side-view of the described blast furnace flush slag of the utility model embodiment groove with the plastics main housing of silicon nitride combined silicon carbide ceramic wear-resisting liner.
Among the figure:
1, inner lining body; 2, sidewall; 3, through hole; 4, U-shaped structure; 5, riser; 6, flat board; 7, web plate.
Embodiment
Shown in Fig. 1-3; The described a kind of blast furnace flush slag groove of the utility model embodiment is with silicon nitride combined silicon carbide ceramic wear-resisting liner; Comprise inner lining body 1, some through holes 3 of uniform distribution respectively on two sidewalls 2 of said inner lining body 1, the inwall of inner lining body 1 structure 4 that takes the shape of the letter U; The riser 5 of two vertical directions of outer wall of inner lining body 1 and the flat board of horizontal direction 6 constitutes, and all is connected through web plate 7 between two risers 5 and the flat board 6.
For further improving the work-ing life of flush slag groove; The utility model can adopt the high-performance silicon nitride material on the silicon carbide ceramics basis; Preparation silicon nitride combined silicon carbide pottery as the attrition resistant inner lining body 1 of flush slag groove, adopts raw materials such as silicon nitride, silit, Pure Silicon Metal and spent pulping liquor; After mud stone roller machine mixed stone roller, compression moulding and oven dry, high-temperature firing formed.Wherein, (SiC+Si3N4%)＞80%.Because the thermal expansivity of silicon nitride material own is low, thermal conductivity is high, characteristics such as so its resistance to sudden heating is better, that the while silicon nitride has is high temperature resistant, intensity height.And in carbofrax material, introduce silicon nitride and Pure Silicon Metal etc., and can play acceleration of sintering and anti-oxidation effect, further improved resistance of oxidation, intensity and the wear resistance of material.Therefore, the silicon nitride combined silicon carbide stupalith after 1450 ℃ of high temperature burn till has advantages such as good oxidation-resistance, HS, high abrasion and thermal shock performance are good.Wherein, the compressive strength＞100Mpa of ceramic-lined material, wear loss＜3CC, thermal shock number of times (1100 ℃ of water-cooleds)＞30.Thereby, further prolong work-ing life of blast furnace flush slag groove and pipeline.
Claims (1)
1. a blast furnace flush slag groove is with silicon nitride combined silicon carbide ceramic wear-resisting liner; Comprise inner lining body (1); It is characterized in that: two sidewalls (2) of said inner lining body (1) are gone up the some through holes of uniform distribution (3) respectively; The inwall of inner lining body (1) structure (4) that takes the shape of the letter U, the riser (5) of two vertical directions of outer wall of inner lining body (1) and the flat board (6) of horizontal direction constitute, and all are connected through web plate (7) between two risers (5) and the flat board (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203098959U CN202272892U (en) | 2011-08-24 | 2011-08-24 | Silicon nitride-silicon carbide compounded ceramic wear-resistant inner lining for slag flushing trough of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203098959U CN202272892U (en) | 2011-08-24 | 2011-08-24 | Silicon nitride-silicon carbide compounded ceramic wear-resistant inner lining for slag flushing trough of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202272892U true CN202272892U (en) | 2012-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203098959U Expired - Fee Related CN202272892U (en) | 2011-08-24 | 2011-08-24 | Silicon nitride-silicon carbide compounded ceramic wear-resistant inner lining for slag flushing trough of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202272892U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107142345A (en) * | 2017-06-30 | 2017-09-08 | 秦冶工程技术(北京)有限责任公司 | Blast furnace cinder ditch stem bar |
-
2011
- 2011-08-24 CN CN2011203098959U patent/CN202272892U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107142345A (en) * | 2017-06-30 | 2017-09-08 | 秦冶工程技术(北京)有限责任公司 | Blast furnace cinder ditch stem bar |
| CN107142345B (en) * | 2017-06-30 | 2023-09-12 | 秦冶工程技术(北京)有限责任公司 | Blast furnace slag channeling nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20120824 |