CN202246778U - Combined-type furnace grate - Google Patents
Combined-type furnace grate Download PDFInfo
- Publication number
- CN202246778U CN202246778U CN201120361324XU CN201120361324U CN202246778U CN 202246778 U CN202246778 U CN 202246778U CN 201120361324X U CN201120361324X U CN 201120361324XU CN 201120361324 U CN201120361324 U CN 201120361324U CN 202246778 U CN202246778 U CN 202246778U
- Authority
- CN
- China
- Prior art keywords
- furnace grate
- fire grate
- grate bar
- grid section
- dovetail
- 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 provides a combined-type furnace grate, which belongs to the improvement technology of the furnace grate of a sintering machine in the technical field of smelting and sintering. The combined-type furnace grate is structurally characterized by comprising a common furnace grate. The upper surface of the common furnace grate is fixedly connected with a heat-resisting furnace grate; the contact surfaces of the heat-resisting furnace grate and the common furnace grate are respectively provided with dovetail grooves; the common furnace grate is provided with dovetail bars matched with the dovetail grooves; and gaps are respectively reserved between the dovetail bars and the dovetail grooves after being installed and fixed. Compared with the prior art, the combined-type furnace grate provided by the utility model has the characteristics of reasonable design, simple structure, convenience in use and the like; the burning loss resistance, the high temperature resistance and the abrasion resistance of the furnace grate are improved; the advantage of a high heat-resisting abrasion resistant material is fully performed; and the service life of the furnace grate is effectively prolonged.
Description
Technical field
The utility model relates to the sinter machine fire grate bar improvement technology of smelting the sintering technology field, a kind of specifically knockdown fire grate bar.
Background technology
The ferrous metallurgy sintering is mainly made to smelt and is used enriched ore, improves the metallurgical performance in ore deposit, the weight that on sinter machine, must adopt fire grate bar to bear agglomerate, and the gap between the fire grate bar is used for the exhausting of sintering process.Fire grate bar in use receives temperature and reaches 850-1050 ℃ of high temperature; The high-temperature gas of sintering process generation simultaneously is corrosive to fire grate bar, and after the sintering discharging was accomplished, the fire grate bar temperature dropped to about 200 ℃; Fire grate bar receives cold and hot variation, requires to have certain thermal fatigue resistance.At present, employed fire grate bar in sintering oven is a whole trapezoidal shape plate body, in use, needs fire grate bar is fixed on the sintering bellows, is provided with gap limited block and limited post in the side of fire grate bar, is used to limit the distance between the adjacent fire grate bar.Because fire grate bar directly touches high-temperature material, so the scaling loss of being easy to influences work-ing life.Work-ing life and sintering resistance ability in order to improve fire grate bar adopt high chromium nickel molybdenum fire grate bar usually, and this high chromium nickel molybdenum fire grate bar has higher heat-resistant antifriction performance, so can increase the service life.But the deficiency of this high chromium nickel molybdenum fire grate bar is, because high chromium nickel molybdenum price is higher, has caused the cost of manufacture of high chromium nickel molybdenum fire grate bar higher, has improved production cost.
Summary of the invention
The technical assignment of the utility model is the deficiency that solves prior art, and a kind of simple in structure, good, lower-cost built-up type fire grate bar of heat-resistant antifriction performance is provided.
The technical scheme of the utility model realizes by following mode; This a kind of built-up type fire grate bar; Its structure comprises the conventional oven grid section, and the upper surface of this conventional oven grid section is fixedly connected with the heat resistant furnace grid section, evenly has dovetail-indent on the contact surface of said heat resistant furnace grid section and conventional oven grid section; Then be provided with the coattail strip that is complementary with dovetail-indent on the conventional oven grid section, leave the slit between coattail strip after above-mentioned the installing and fixing and the dovetail-indent.
Described conventional oven grid section is trapezoidal fire grate bar of cast iron or the trapezoidal fire grate bar of cast steel.
Described heat resistant furnace grid section is the trapezoidal fire grate bar of high-nickel-chromium molybdenum.
The end face of said coattail strip is provided with anti-skidding line.
The thickness of said heat resistant furnace grid section is 25-50mm.
The slit of leaving between said coattail strip and the dovetail-indent is 1-2mm.
The beneficial effect that the utility model is compared with prior art produced is:
Characteristics such as that a kind of built-up type fire grate bar of the utility model has is simple in structure, easy to use, be skillfully constructed; Because conventional oven grid section and heat resistant furnace grid section combine to be provided with; Reduce production costs, the conventional oven grid section does not directly touch the high temperature material simultaneously, does not influence the work-ing life of fire grate bar; And directly touch the top of high-temperature material, and adopt interior heat, attrition resistant high-nickel-chromium molybdenum material, thereby improved anti-scaling loss, high temperature resistance, wear resisting property, given full play to the advantage of high heat-resistant and wear-resistant material, effectively raise the work-ing life of fire grate bar.
Description of drawings
Accompanying drawing 1 is the one-piece construction synoptic diagram of the utility model;
Accompanying drawing 2 is vertical views of conventional oven grid section in the accompanying drawing 1.
Mark in the accompanying drawing is represented respectively:
1, conventional oven grid section, 2, coattail strip, 3, the heat resistant furnace grid section, 4, dovetail-indent, 5, anti-skidding line.
Embodiment
Below in conjunction with specifying below a kind of built-up type fire grate row culture of accompanying drawing to the utility model.
Shown in accompanying drawing 1; This a kind of built-up type fire grate bar; Its structure comprises conventional oven grid section 1, and the upper surface of this conventional oven grid section 1 is fixedly connected with heat resistant furnace grid section 3, evenly has dovetail-indent 4 on the contact surface of said heat resistant furnace grid section 3 and conventional oven grid section 1; Then be provided with the coattail strip 2 that is complementary with dovetail-indent 4 on the conventional oven grid section 1; Leave the slit between coattail strip 2 after above-mentioned the installing and fixing and the dovetail-indent 4, the distance in this slit is 1-2mm, and described conventional oven grid section 1 is trapezoidal fire grate bar of cast iron or the trapezoidal fire grate bar of cast steel; Its end, is long consistent with the end face length that matrix block is installed, and heat resistant furnace grid section 3 is 25-50mm for the thickness of the trapezoidal fire grate bar of high-nickel-chromium molybdenum and this heat resistant furnace grid section 3.
Shown in accompanying drawing 2, the end face of said coattail strip 2 is provided with anti-skidding line 5, prevents that effectively coattail strip 2 from skidding off in dovetail-indent 4, and then guarantees the steadiness of this built-up type fire grate bar.
Claims (6)
1. built-up type fire grate bar; Its structure comprises the conventional oven grid section; The upper surface that it is characterized in that this conventional oven grid section is fixedly connected with the heat resistant furnace grid section; Evenly have dovetail-indent on the contact surface of said heat resistant furnace grid section and conventional oven grid section, then be provided with the coattail strip that is complementary with dovetail-indent on the conventional oven grid section, leave the slit between coattail strip after above-mentioned the installing and fixing and the dovetail-indent.
2. a kind of built-up type fire grate bar according to claim 1 is characterized in that described conventional oven grid section is trapezoidal fire grate bar of cast iron or the trapezoidal fire grate bar of cast steel.
3. a kind of built-up type fire grate bar according to claim 1 is characterized in that described heat resistant furnace grid section is the trapezoidal fire grate bar of high-nickel-chromium molybdenum.
4. a kind of built-up type fire grate bar according to claim 1 is characterized in that the end face of said coattail strip is provided with anti-skidding line.
5. a kind of built-up type fire grate bar according to claim 1, the thickness that it is characterized in that said heat resistant furnace grid section is 25-50mm.
6. a kind of built-up type fire grate bar according to claim 1 is characterized in that the slit of leaving between said coattail strip and the dovetail-indent is 1-2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120361324XU CN202246778U (en) | 2011-09-26 | 2011-09-26 | Combined-type furnace grate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120361324XU CN202246778U (en) | 2011-09-26 | 2011-09-26 | Combined-type furnace grate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202246778U true CN202246778U (en) | 2012-05-30 |
Family
ID=46108049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120361324XU Expired - Fee Related CN202246778U (en) | 2011-09-26 | 2011-09-26 | Combined-type furnace grate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202246778U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937374A (en) * | 2012-10-25 | 2013-02-20 | 江苏大学 | Preparation method of composite sintering machine grate bar |
| CN107717255A (en) * | 2017-11-15 | 2018-02-23 | 扬州市江戎机械制造有限公司 | A kind of manufacture method of fire grate bar |
-
2011
- 2011-09-26 CN CN201120361324XU patent/CN202246778U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937374A (en) * | 2012-10-25 | 2013-02-20 | 江苏大学 | Preparation method of composite sintering machine grate bar |
| CN107717255A (en) * | 2017-11-15 | 2018-02-23 | 扬州市江戎机械制造有限公司 | A kind of manufacture method of fire grate bar |
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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: 20120530 Termination date: 20120926 |