CN202730165U - Grate of blast furnace hot-blast stove - Google Patents
Grate of blast furnace hot-blast stove Download PDFInfo
- Publication number
- CN202730165U CN202730165U CN 201220372372 CN201220372372U CN202730165U CN 202730165 U CN202730165 U CN 202730165U CN 201220372372 CN201220372372 CN 201220372372 CN 201220372372 U CN201220372372 U CN 201220372372U CN 202730165 U CN202730165 U CN 202730165U
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- fire grate
- grate
- blast
- blast stove
- stove
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Abstract
The utility model discloses a grate of a blast furnace hot-blast stove, and belongs to the technical field of the hot-blast stove. The grate overcomes the shortcomings of the prior art. The grate of the blast furnace hot-blast stove has the advantages of low cost and high heat-resistance temperature, and therefore the hot-blast stove can make good use of the grate. The technical scheme includes that the grate matched with the shape of the bottom of the blast furnace hot-blast stove is formed by the fact that a plurality of grate bricks are connected in sequence in an overlap joint mode. The structure of the grate brick is characterized in that one side of a plate-shaped grate body is provided with at least one protrusion, and one edge of the grate body is provided with a plurality of diversion grooves. The grate is mainly used for the blast furnace hot-blast stove.
Description
Technical field
The utility model blast funnace hot blast stove fire grate belongs to the hotblast stove technical field.
Background technology
Hotblast stove is the key components of metallurgy industry iron-smelting blast furnace, is used for the exchange of cold-hot wind, through heat exchange, sends into hotblast stove by gas blower by pipeline, sends in the blast furnace again.Their effect is constantly to provide high-temperature hot-air more than 1000 ℃ for blast furnace.
Hotblast stove generally adopts blast furnace gas to add coke-oven gas and makes fuel, using under the condition of blast furnace gas, adopts the method for warm-up combustion-supporting air and coal gas, can improve more than wind-warm syndrome to 1200 ~ 1300 ℃.
But the structure that existing hotblast stove adopts combustion gas to enter the hotblast stove furnace bottom by flue supports the fire grate that heat resisting iron is put on top by steel column, and fire grate top dress refractory ball, and checker brick are until the air outlet on top.
The problem that existing hotblast stove exists has: the hotblast stove furnace bottom is owing to adopt cast iron heat resistant furnace grate, heat-exchange temperature can not be too high, cause and limited temperature of combustion, the hotblast stove bottom can only reach 350 ℃, because temperature can not be too high, the area that effectively utilizes of hotblast stove can only reach about 70%, causes greatly hotblast stove space waste, is unfavorable for lean production.If reach 350 ℃ and surpass bottom the hotblast stove, too high temperature can make the fire grate distortion even cause that hotblast stove caves in.
The utility model content
The utility model blast funnace hot blast stove fire grate has overcome the deficiency that prior art exists, and the blast funnace hot blast stove fire grate that a kind of cost is low, heat resisting temperature is high, hotblast stove can be taken full advantage of is provided.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: blast funnace hot blast stove fire grate, a plurality of fire grate bricks overlap successively and form the fire grate that adapts with the furnace bottom shape;
The structure of fire grate brick is: tabular fire grate body one side is provided with at least one projection, the fire grate body wherein be provided with a plurality of diversion trenchs on one side.
Described fire grate brick is rectangular plate.
Described projection is the taper cylinder, and four described projections are symmetrically distributed on the fire grate body.
Described diversion trench is circular groove, and a plurality of circular groove rules are arranged on wherein one side of fire grate body.
Described fire grate brick is made with refractory ceramic material.
The utility model compared with prior art has following beneficial effect.
1, Combined ceramic fire grate in the utility model, adopt the brick shore supports, the furnace bottom heat resisting temperature can reach 1200 ℃, improve 850 ℃ than conventional temperature, significantly promoted the heat resisting temperature of furnace bottom, greatly improved the area that utilizes of hotblast stove, and the Combined ceramic fire grate can not be out of shape, make the blast funnace hot blast stove one-piece construction firm, improved safety performance.
2, utilize the Combined ceramic fire grate in the utility model, and adopt the fire-resistant heat-storing materials such as efficient 37 hole checker brick or refractory ball, make Blast Temperature reach 1250 ℃ in air-supply in 6 hours, shorten heat-up time, prolong heating time, reduce hotblast stove quantity, save cost.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is assembling synoptic diagram of the present utility model.
Among the figure, 1 is that fire grate brick, 2 is that fire grate body, 3 is that projection, 4 is diversion trench.
Embodiment
Such as Fig. 1, Fig. 2, shown in Figure 3, the utility model blast funnace hot blast stove fire grate, a plurality of fire grate bricks 1 overlap successively and form the fire grate that adapts with the furnace bottom shape;
The structure of fire grate brick 1 is: tabular fire grate body 2 one sides are provided with at least one projection 3, fire grate body 2 wherein be provided with a plurality of diversion trenchs 4 on one side.
Described fire grate brick 1 is rectangular plate.
Described protruding 3 are the taper cylinder, and four described protruding 3 are symmetrically distributed on the fire grate body 2.
Described diversion trench 4 is circular groove, and a plurality of circular groove rules are arranged on wherein one side of fire grate body 2.
Described fire grate brick 1 usefulness refractory ceramic material is made.
The utility model is overlapped successively by a plurality of fire grate bricks 1 and forms, rely on the projection 3 on the fire grate body 2 to make the vertical ventilator trunk of formation between the fire grate brick 1, make by a plurality of circular arc diversion trenchs 4 that arrange on a limit on the fire grate body 2 and realize horizontal intercommunication between the vertical ventilator trunk of fire grate brick 1, make the ventilation effect of blast funnace hot blast stove integral body more smooth.
The utility model is replaced by heat-resisting Combined ceramic fire grate by hotblast stove traditional burner grate, can be burned to 1200 ℃, compares traditional temperature and can improve 850 °, greatly improve the area that utilizes of hotblast stove, improved wind-warm syndrome, saved coke ratio, also have coal gas, provide cost savings greatly.
For the supporting hotblast stove of the blast furnace of steel industry, bottleneck obstacle restrictive function is still arranged, so the utility model is transformed Grates for Blast Heating Furnace, make it make more heat-resisting ceramics furnace grate, allow it that sufficient heat interchanging area is arranged, sufficient heat storage capacity, the air-supply time guarantees more than 6 hours, Combustion of Hot Air Furnace and air-supply are all adopted little burning to burn slowly, are sent slowly the mode of stablizing long-time high wind-warm syndrome, reach high wind-warm syndrome, the energy-efficient purpose of high generated energy.In order to reach this purpose, the utility model adopts the mode of brick pillar to realize.Checker brick adopt efficient 37 hole checker brick technology, make its wind-warm syndrome in air-supply 6 hours and burning reaches the wind-warm syndrome of 1250 degree in 6 hours, and converter life is more than 20 years, and heat storage work-ing life is more than 10 years.
The utility model is because the raising of heating temperature, shortened heat-up time, the efficient 37 hole checker brick or the refractory ball that adopt have prolonged again heating time, saved the quantity of hotblast stove, the quantity that makes hotblast stove becomes existing 2 by original 3, has saved cost of investment, simultaneously owing to improved the area that utilizes of hotblast stove, saved a large amount of coke ratios and coal gas, the coal gas that saves can be used to again generating, has greatly saved cost.
Claims (5)
1. the blast funnace hot blast stove fire grate is characterized in that, a plurality of fire grate bricks (1) overlap successively and form the fire grate that adapts with the furnace bottom shape;
The structure of fire grate brick (1) is: tabular fire grate body (2) one sides are provided with at least one projection (3), fire grate body (2) wherein be provided with a plurality of diversion trenchs (4) on one side.
2. blast funnace hot blast stove fire grate according to claim 1 is characterized in that, described fire grate brick (1) is rectangular plate.
3. blast funnace hot blast stove fire grate according to claim 1 and 2 is characterized in that, described projection (3) is the taper cylinder, and four described projections (3) are symmetrically distributed on the fire grate body (2).
4. blast funnace hot blast stove fire grate according to claim 1 and 2 is characterized in that, described diversion trench (4) is circular groove, and a plurality of circular groove rules are arranged on wherein one side of fire grate body (2).
5. blast funnace hot blast stove fire grate according to claim 1 is characterized in that, described fire grate brick (1) is made with refractory ceramic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220372372 CN202730165U (en) | 2012-07-30 | 2012-07-30 | Grate of blast furnace hot-blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220372372 CN202730165U (en) | 2012-07-30 | 2012-07-30 | Grate of blast furnace hot-blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202730165U true CN202730165U (en) | 2013-02-13 |
Family
ID=47655882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220372372 Expired - Lifetime CN202730165U (en) | 2012-07-30 | 2012-07-30 | Grate of blast furnace hot-blast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202730165U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197733A (en) * | 2014-08-27 | 2014-12-10 | 鞍钢集团工程技术有限公司 | High-temperature sintering carbon device and technology of heat accumulating type circulating gas heating furnace |
| CN113136471A (en) * | 2021-03-30 | 2021-07-20 | 北京卡卢金热风炉技术有限公司 | High-temperature-resistant grate, hot blast stove system and method for heating medium-temperature air |
-
2012
- 2012-07-30 CN CN 201220372372 patent/CN202730165U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197733A (en) * | 2014-08-27 | 2014-12-10 | 鞍钢集团工程技术有限公司 | High-temperature sintering carbon device and technology of heat accumulating type circulating gas heating furnace |
| CN104197733B (en) * | 2014-08-27 | 2016-02-03 | 鞍钢集团工程技术有限公司 | Regenerative cycles device in Gas heating furnace high-temperature burns carbon distribution device and technique |
| CN113136471A (en) * | 2021-03-30 | 2021-07-20 | 北京卡卢金热风炉技术有限公司 | High-temperature-resistant grate, hot blast stove system and method for heating medium-temperature air |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LANXIAN SANXIN SHIYE JIHENG CASTING CO., LTD. Free format text: FORMER OWNER: WANG JIPING Effective date: 20140729 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140729 Address after: 033500 Shanxi city of Lvliang province Lanxian Puming Industrial Park Patentee after: Xin industrial growth in three after Henry Casting Co.,Ltd. Address before: 033500 Shanxi city of Lvliang province Lanxian Puming Industrial Park Xin industrial growth in three after Henry Casting Co. Ltd. Patentee before: Wang Jiping |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |
|
| CX01 | Expiry of patent term |