CN201819232U - Composite grate - Google Patents
Composite grate Download PDFInfo
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- CN201819232U CN201819232U CN2010205600911U CN201020560091U CN201819232U CN 201819232 U CN201819232 U CN 201819232U CN 2010205600911 U CN2010205600911 U CN 2010205600911U CN 201020560091 U CN201020560091 U CN 201020560091U CN 201819232 U CN201819232 U CN 201819232U
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- grate
- hole
- fire grate
- lower layer
- upper strata
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Abstract
The utility model provides a composite grate relating to the technical field of steel metallurgy and heat energy engineering. By adopting the key technology of more than two layers of composite grates, an upper-layer hole-aligned grate is arranged on the a lower-layer supporting grate; a groove arranged on the bottom surface of the lower-layer supporting grate is connected with the top end of a crossbeam in an embedding manner; the bottom end of the crossbeam is connected with a slot-type plate arranged at the upper end of a stanchion in an embedding manner; the lower end of the stanchion is provided with a fixed plate that is fixedly connected with the bottom of a hot-blast stove. The composite grate is applied to the hot-blast stove used for steel metallurgy, has low jamming rate, high utilization ratio on heat energy, strong strength or stability, stable and reliable effect, is convenient to manufacture, assemble and maintain, has small manufacturing difficulty and good comprehensive benefit, and is beneficial to generalization.
Description
Technical field
The compound fire grate of the utility model relates to Ferrous Metallurgy and Thermal Power Engineering technical field, particularly relates to a kind of technical field that can improve the fire grate performance of blast furnace hot-blast stove.
Background technology
In the technical field of Ferrous Metallurgy, be unable to do without hot-blast stove, in the Thermal Power Engineering technology of hot-blast stove, the fire grate carrier that is absolutely necessary, specifically, fire grate is the vitals of regenerative hot blast stove, generally is made up of parts such as grate, crossbeam, pillars; Its effect is the heat storage that supports in the hot-blast stove, and flue gas and air are circulated by the grate checkerwork cell smoothly.Fire grate version mainly contains independent support formula, cross beam type, spherical cap type etc. various ways.The percentage of plugged hole of fire grate and intensity are the key technology performances, and as far as possible little percentage of plugged hole and sufficiently high intensity must be arranged.Present various fire grates because of its structural reason separately, exist many deficiencies, defective and drawbacks such as percentage of plugged hole height, heat energy utilization rate are low, intensity or poor stability, manufacture difficulty is big, comprehensive benefit is not good enough.As: 1., independent support formula fire grate is that every pillar supports separately a fire grate, every fire grate and its pillar are one group, group with organize between separate, it is the plane that all fire grates install its upper surface; Its poor stability, pillar easily tilts, and the fire grate stress is a cantilevered and moment of flexure is big, easily produces the fire grate bight and subside and cause heat storage checkerwork cell malalignment under high temperature and heat storage load effect, influences through-hole rate.2., the cross beam type fire grate is that fire grate is placed on the crossbeam, crossbeam is supported on the pillar, all fire grates, crossbeam and pillar all connect into an integral body, installing its upper surface is the plane; Though stability better and solved the deficiency of independent support formula fire grate, but has only one deck grate from structure, with heat storage checkerwork cell and pitch of holes reduce that its fire grate checkerwork cell is also corresponding with pitch of holes to be reduced, caused that percentage of plugged hole increases considerably, intensity descends significantly.3., do not have in the middle of the spherical cap type fire grate support or intermediate supports on crossbeam and pillar, the fire grate peripheral support is on the furnace wall that refractory material is built by laying bricks or stones.4., the checkerwork cell of cage fire grate is distributed on the spherical crown surface, this fire grate only is applicable to and supports the flame-proof sphere heat storage, uses less on large-scale hot-blast stove.Professional knowledge based on the inventor reaches the excelsior unremitting pursue of cause with the working experience of enriching, and the spy takes " double-deck above compound fire grate " key technology, has succeeded in developing the utility model.
The utility model content
The utility model is taked " double-deck above compound fire grate " key technology, its upper strata to the hole grate be placed on the lower layer support grate above, the groove that lower layer support grate bottom surface is provided with is inlayed with the top of crossbeam and is connected, the bottom of crossbeam is inlayed with the groove type plate that the pillar upper end is provided with and is connected, and the fixed head that the pillar lower end is provided with is fixedlyed connected with the furnace bottom of hot-blast stove.
1., " compound fire grate " new product is provided the purpose that reaches by the utility model is:; 2., optimize the technical performance of fire grate, make that its percentage of plugged hole is low, heat energy utilization rate height, intensity or stability is strong, manufacture difficulty is less, comprehensive benefit is good, solve many deficiencies, defective and drawback that existing fire grate exists; 3., make that design science of the present utility model is reasonable, simple and practical, effect stability is reliable, be convenient to make/install/use/keep in repair, be beneficial to and apply.
For achieving the above object, the technical scheme that provides of the utility model is:
A kind of compound fire grate is made of hole grate, lower layer support grate, crossbeam, pillar the upper strata;
Described compound fire grate, its upper strata to the hole grate be placed on the lower layer support grate above, the groove that its lower layer support grate bottom surface is provided with is inlayed with the top of crossbeam and is connected, the bottom of its crossbeam is inlayed with the groove type plate that the pillar upper end is provided with and is connected, and the fixed head that its pillar lower end is provided with is fixedlyed connected with the furnace bottom of hot-blast stove.
Described compound fire grate, described upper strata is the platy structure that is provided with checkerwork cell to the hole grate, described lower layer support grate is that the platy structure that is provided with the rhombus checkerwork cell, the bottom surface of this described plate are provided with groove, described crossbeam is the structure that is connected as one by gusset between two identical beams, and described pillar is provided with the tubular structure that the groove type plate lower end is provided with fixed head for the upper end.
Described compound fire grate, described upper strata is more than one deck to the hole grate.
Described compound fire grate, described crossbeam is minimum to be two, described pillar is minimum to be four.
Described compound fire grate, described upper strata is corresponding with one or more checkerwork cells of support heat storage in the described hot-blast stove to each checkerwork cell of hole grate.
Described compound fire grate, described upper strata are shaped as the checkerwork cell of hole grate and select a kind of in regular polygon, rhombus, rectangle, circle, ellipse, quincunx, the dumb-bell shape.
Described compound fire grate, the checkerwork cell of described lower layer support grate is corresponding to a plurality of checkerwork cells of hole grate with the upper strata.
Described compound fire grate, the rhombus checkerwork cell of described lower layer support grate can select to replace with a kind of in regular polygon, rectangle, circle, ellipse, quincunx, the dumb-bell shape.
Described compound fire grate, described upper strata to the checkerwork cell number on the grate unit are grate of hole more than the checkerwork cell number on the lower layer support grate unit are grate.
Because the technical scheme that has adopted the utility model to provide; Because the utility model is taked " double-deck above compound fire grate " key technology; Since upper strata of the present utility model to the hole grate be placed on the lower layer support grate above, the groove that lower layer support grate bottom surface is provided with is inlayed with the top of crossbeam and is connected, the bottom of crossbeam is inlayed with the groove type plate that the pillar upper end is provided with and is connected, and the fixed head that the pillar lower end is provided with is fixedlyed connected with the furnace bottom of hot-blast stove.1., " compound fire grate " new product is provided the beneficial effect that makes the utility model obtain is:; 2., optimize the technical performance of fire grate, make that its percentage of plugged hole is low, heat energy utilization rate height, intensity or stability is strong, manufacture difficulty is less, comprehensive benefit is good, solve many deficiencies, defective and drawback that existing fire grate exists; 3., make that design science of the present utility model is reasonable, simple and practical, effect stability is reliable, be convenient to make/install/use/keep in repair, be beneficial to and apply.
Description of drawings
Fig. 1 is the floor map of the utility model specific embodiment; It is schematic top plan view.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Fig. 3 is that the utility model specific embodiment is at the middle and upper levels to the schematic top plan view of wherein a kind of checkerwork cell mode of hole grate.Omit hole grate schematic diagram on the upper strata of other various checkerwork cell modes.
Fig. 4 is the schematic top plan view of wherein a kind of checkerwork cell mode of lower layer support grate in the utility model specific embodiment.The lower layer support grate schematic diagram of other various checkerwork cell modes omits.
Fig. 5 is the schematic top plan view of the utility model specific embodiment middle cross beam.
Label among the figure: 1, the upper strata is to the hole grate, and 2, the lower layer support grate, 3, crossbeam, 4, pillar.
The specific embodiment
The specific embodiment one
Below in conjunction with Figure of description, the utility model is described in detail.Shown in Figure of description:
A kind of compound fire grate is made of hole grate 1, lower layer support grate 2, crossbeam 3, pillar 4 upper strata;
Described compound fire grate, its upper strata to hole grate 1 be placed on lower layer support grate 2 above, the groove that its lower layer support grate 2 bottom surfaces are provided with is inlayed with the top of crossbeam 3 and is connected, the bottom of its crossbeam 3 is inlayed with the groove type plate that pillar 4 upper ends are provided with and is connected, and the fixed head that its pillar 4 lower ends are provided with is fixedlyed connected with the furnace bottom of hot-blast stove.
Described compound fire grate, described upper strata is the platy structure that is provided with checkerwork cell to hole grate 1, described lower layer support grate 2 for be provided with the platy structure of rhombus checkerwork cell, the bottom surface of this described plate is provided with groove, described crossbeam 3 is the structure that is connected as one by gusset between two identical beams, and described pillar 4 is provided with the tubular structure that the groove type plate lower end is provided with fixed head for the upper end.
Described compound fire grate, described upper strata is more than one deck to hole grate 1.
Described compound fire grate, described crossbeam 3 is minimum to be two, described pillar 4 is minimum to be four.
Described compound fire grate, described upper strata is corresponding with one or more checkerwork cells of support heat storage in the described hot-blast stove to each checkerwork cell of hole grate 1.
Described compound fire grate, described upper strata are shaped as the checkerwork cell of hole grate 1 and select a kind of in regular polygon, rhombus, rectangle, circle, ellipse, quincunx, the dumb-bell shape.
Described compound fire grate, the checkerwork cell of described lower layer support grate 2 is corresponding to a plurality of checkerwork cells of hole grate 1 with the upper strata.
Described compound fire grate, the rhombus checkerwork cell of described lower layer support grate 2 can select to replace with a kind of in regular polygon, rectangle, circle, ellipse, quincunx, the dumb-bell shape.
Described compound fire grate, described upper strata to the checkerwork cell number on the hole grate 1 unit are grate more than the checkerwork cell number on the lower layer support grate 2 unit are grates.
In above-mentioned specific implementation process: described upper strata is implemented with 1,2,3 layer respectively hole grate 1; Described crossbeam 3 is implemented with 2,3,4 respectively; Described pillar 4 is implemented with 4,6,8 respectively; Described upper strata is implemented with regular polygon, rhombus, rectangle, circle, ellipse, quincunx, dumb-bell shape respectively the checkerwork cell shape of hole grate 1; The checkerwork cell of described lower layer support grate 2 is implemented with rhombus, regular polygon, rectangle, circle, ellipse, quincunx, dumb-bell shape respectively; All obtained the good result of expection.
1., the intensity height by above-mentioned concrete enforcement, demonstrate fully advantage of the present utility model and be:: through hole problem and strength problem are separated solution, and technical performance is optimized, and is particularly suitable for adopting the hot-blast stove of the efficient checker brick heat storage in small-bore.2., through-hole rate is more than 80%: the upper strata can guarantee that to the hole grate grate checkerwork cell is corresponding with heat storage checkerwork cell 100%, and promptly through-hole rate reaches 100%.The upper strata between hole grate and the lower layer support grate and between lower layer support grate and the crossbeam arbitrarily checkerwork cell stop up and be no more than 17%, reached higher through-hole rate.3., processing and manufacturing is simple: the upper strata is that fritter grate and thickness are less to the hole grate, has avoided aperture, deep hole, the casting of little wall thickness, reduces the casting difficulty, and checkerwork cell can also adopt boring accurately to process, and reduces difficulty of processing; Lower layer support grate checkerwork cell is big and wall thickness is thicker, and casting easily.4., improved grate intensity: under the equal grate thickness condition, the lower layer support grate is bigger than the wall thickness of traditional grate, has improved grate intensity.
In sum, compound fire grate all has big technological progress and has produced remarkable result on structure and performance, existing traditional burner grate has increased multinomial effect, and have more the practical value that industry is extensively utilized, its novelty, creativeness, practicality are apparent.
The specific embodiment two
Shown in Figure of description, and on the enforcement basis of the specific embodiment one, implement.Just: the upper strata is that one deck, its checkerwork cell adopt circular hole to hole grate 1, and the checkerwork cell of lower layer support grate 2 adopts diamond hole, and crossbeam 3 adopts monolithic construction, and pillar 4 is 4.For the utility model is carried out property on probation examination and test, this specific embodiment is specially to have carried out concrete enforcement in conjunction with newly-built blast-furnace hot-air furnace project.The concrete back of implementing is as follows with the result that relevant prior art compares to the utility model:
Compound fire grate and common cross beam type plum blossom hole fire grate technical performance contrast table
| The fire grate type | Compound fire grate | Common cross beam type plum blossom hole grate |
| Fire grate weight, kg/m 2 | 1263.6? | 1407.7? |
| Fire grate intensity | 1.07? | 1? |
| Through-hole rate (blocking the position) | 73.7％? | 48.5％? |
By above contrast table as can be known, the intensity of compound fire grate improves more than 7%, blocks the position through-hole rate and improves 52%, and grate weight reduces-10%.Demonstrate fully, compound fire grate in light weight, intensity is high, through-hole rate is high, reduced processing and manufacturing difficulty and expense significantly, but wide popularization and application is significant to technical progress of industry.
Being preferred embodiment of the present utility model only below, is not that the utility model is done any pro forma restriction; The those of ordinary skill of all industry all can be implemented smoothly; But make the equivalent variations of differentiation not breaking away from technical solutions of the utility model, be equivalent embodiment of the present utility model, all still belong to the technical solution of the utility model.
Claims (7)
1. a compound fire grate is characterized in that: the upper strata hole grate (1), lower layer support grate (2), crossbeam (3), pillar (4) are made of;
Described compound fire grate, its upper strata to hole grate (1) be placed on lower layer support grate (2) above, the groove that its lower layer support grate (2) bottom surface is provided with is inlayed with the top of crossbeam (3) and is connected, the bottom of its crossbeam (3) is inlayed with the groove type plate that pillar (4) upper end is provided with and is connected, and the fixed head that its pillar (4) lower end is provided with is fixedlyed connected with the furnace bottom of hot-blast stove.
2. compound fire grate according to claim 1, it is characterized in that: described upper strata is the platy structure that is provided with checkerwork cell to hole grate (1), described lower layer support grate (2) for be provided with the platy structure of rhombus checkerwork cell, the bottom surface of this described plate is provided with groove, described crossbeam (3) is the structure that is connected as one by gusset between two identical beams, and described pillar (4) is provided with the tubular structure that the groove type plate lower end is provided with fixed head for the upper end.
3. compound fire grate according to claim 1 and 2 is characterized in that: described upper strata is corresponding with one or more checkerwork cells of support heat storage in the described hot-blast stove to each checkerwork cell of hole grate (1).
4. compound fire grate according to claim 2 is characterized in that: described upper strata is shaped as the checkerwork cell of hole grate (1) and selects a kind of in regular polygon, circle, quincunx, the dumb-bell shape.
5. compound fire grate according to claim 1 and 2 is characterized in that: the checkerwork cell of described lower layer support grate (2) is corresponding to a plurality of checkerwork cells of hole grate (1) with the upper strata.
6. compound fire grate according to claim 2 is characterized in that: the rhombus checkerwork cell of described lower layer support grate (2) can select to replace with a kind of in regular polygon, rectangle, circle, ellipse, quincunx, the dumb-bell shape.
7. compound fire grate according to claim 2 is characterized in that: described upper strata to the checkerwork cell number on hole grate (1) the unit are grate more than the checkerwork cell number on lower layer support grate (2) the unit are grate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205600911U CN201819232U (en) | 2010-10-12 | 2010-10-12 | Composite grate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205600911U CN201819232U (en) | 2010-10-12 | 2010-10-12 | Composite grate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201819232U true CN201819232U (en) | 2011-05-04 |
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ID=43917184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205600911U Expired - Lifetime CN201819232U (en) | 2010-10-12 | 2010-10-12 | Composite grate |
Country Status (1)
| Country | Link |
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| CN (1) | CN201819232U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808078A (en) * | 2012-06-18 | 2012-12-05 | 首钢总公司 | Pellet roasting device |
| CN103290156A (en) * | 2013-05-15 | 2013-09-11 | 萨伯丁·安东 | Grating plate device of lattice brick air heating furnace |
| CN108844088A (en) * | 2018-06-19 | 2018-11-20 | 鞍钢重型机械有限责任公司 | A kind of abnormity plum blossom hole fire grate and stove fillings support system |
| CN112063787A (en) * | 2020-09-28 | 2020-12-11 | 中冶京诚工程技术有限公司 | Hot-blast furnace checker brick strutting arrangement |
| CN112251556A (en) * | 2020-09-30 | 2021-01-22 | 广东韶钢松山股份有限公司 | Method for recovering performance of grate support column equipment of blast furnace hot blast stove |
| CN108844088B (en) * | 2018-06-19 | 2024-05-17 | 鞍钢重型机械有限责任公司 | Grid with special-shaped plum blossom holes and hot-blast stove lattice brick supporting system |
-
2010
- 2010-10-12 CN CN2010205600911U patent/CN201819232U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808078A (en) * | 2012-06-18 | 2012-12-05 | 首钢总公司 | Pellet roasting device |
| CN103290156A (en) * | 2013-05-15 | 2013-09-11 | 萨伯丁·安东 | Grating plate device of lattice brick air heating furnace |
| CN103290156B (en) * | 2013-05-15 | 2016-03-02 | 萨伯丁·安东 | A kind of checker brick hot-air stove grate panel assembly |
| CN108844088A (en) * | 2018-06-19 | 2018-11-20 | 鞍钢重型机械有限责任公司 | A kind of abnormity plum blossom hole fire grate and stove fillings support system |
| CN108844088B (en) * | 2018-06-19 | 2024-05-17 | 鞍钢重型机械有限责任公司 | Grid with special-shaped plum blossom holes and hot-blast stove lattice brick supporting system |
| CN112063787A (en) * | 2020-09-28 | 2020-12-11 | 中冶京诚工程技术有限公司 | Hot-blast furnace checker brick strutting arrangement |
| CN112251556A (en) * | 2020-09-30 | 2021-01-22 | 广东韶钢松山股份有限公司 | Method for recovering performance of grate support column equipment of blast furnace hot blast stove |
| CN112251556B (en) * | 2020-09-30 | 2022-06-21 | 广东韶钢松山股份有限公司 | Method for recovering performance of grate support column equipment of blast furnace hot blast stove |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110504 |