CN2380576Y - Device for uniformly distributing lower air-flow of blast heater - Google Patents
Device for uniformly distributing lower air-flow of blast heater Download PDFInfo
- Publication number
- CN2380576Y CN2380576Y CN 98211683 CN98211683U CN2380576Y CN 2380576 Y CN2380576 Y CN 2380576Y CN 98211683 CN98211683 CN 98211683 CN 98211683 U CN98211683 U CN 98211683U CN 2380576 Y CN2380576 Y CN 2380576Y
- Authority
- CN
- China
- Prior art keywords
- air
- blast heater
- blast
- flow
- chamber
- 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
Links
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model relates to a device for uniformly distributing the lower air-flow of a blast heater. The device for uniformly distributing the lower air-flow of the blast heater is characterized in that a ring airflow channel is arranged at the periphery of an air chamber which is positioned under the grate of a checker chamber in the blast heater. The air chamber and the ring airflow channel are connected by a plurality of tuyeres. When the blast heater sends the air, the air blow enters the air chamber through the tuyeres after passing a cold air branch pipe and the ring airflow channel. When the blast heater is heated, the exhaust air enters the ring airflow channel from the air chamber to the tuyeres, and then is discharged in a smoke channel. The utility model has a simple structure. The change to the structure of the original blast heater is small, and the investment is low. The heat efficiency and the temperature of the hot air in the blast heater are all improved conspicuously after the utility model is applied. At the same time, the fireproofing materials in the blast heater can be saved by 40-60%, and the economic benefit is conspicuous.
Description
The hotblast stove air blast of the blast furnace all technology of joining is a new technology that grew up in recent years.At present, China has the hotblast stove of minority blast furnace to adopt methods such as adding distribution plate, and the inhomogeneous situation that air blast is entered regenerator has certain improvement.But air blast and waste gas still can only flow to outflow from the same import and export of same direction.During the hotblast stove air-supply, cause the streamline distribution of air blast in regenerator inhomogeneous.The position regenerator temperature drop that air-flow is strong is fast, and the hot blast temperature at this position of flowing through reduces rapidly, causes that wind-warm syndrome is low; Position regenerator temperature drop a little less than the air-flow is slow, the temperature height.During hot blast stove burning, the effusive spent air temperture height from this position causes the spent air temperture that enters flue also high.The uneven distribution of air blast and off-gas flows is the one of the main reasons that causes hotblast stove thermo-efficiency low.
The objective of the invention is to provide a kind of two kinds of air-flows (air blast and waste gas) mobile device more equably that makes,, make that the temperature difference goes to zero on the same horizontal plane of regenerator to improve the working condition of chamber of hot-blast stove; Under identical dome temperature condition, improve the hot-blast outlet temperature, reduce the spent air temperture of discharging, improve all equipped the putting of hotblast stove lower stream of airflow of hotblast stove thermo-efficiency.
The principal feature of this covering device is: the air chamber periphery below the chamber of hot-blast stove fire grate is provided with annular air-flow path, and air chamber and annular air-flow path are communicated with by several air ports.Air blast enters air chamber by annular air-flow path through these air ports; Waste gas enters annular air-flow path by air chamber through these air ports, enters flue again.More balanced steadily the air-flow streamline is more even in order to make in the air chamber air pressure at each position, and the tuyere diameter at each position will be adjusted.
The embodiment represented below in conjunction with accompanying drawing describes the present invention.
Accompanying drawing is all equipped sectional view of putting of hotblast stove lower stream of airflow.1-flue take-off pipe wherein, 2-annular air-flow path, 3-air port, 4-pallet, 5-regenerator, 6-clamping ring, 7-fire grate, 8-pillar, 9-manhole, 10-gusset, 11-manhole, 12-air chamber.
The primary structure of this covering device is please referring to accompanying drawing.Its annular air-flow path is by pallet (4), fire grate pillar (8), and box hat and insulating brick thereof, drop-bottom and insulating brick thereof constitute.The air port (3) that is used to be communicated with air chamber (12) and annular air-flow path is arranged on the annular air-flow path wall.
Pallet (4) is made up of steel plate and gusset, is welded on the furnace shell.
Pillar (8) is built by laying bricks or stones by refractory brick and is formed, the weight of supporting fire grate and regenerator, and the inwall of looping gas channel.
Its working process is as follows: during the hotblast stove air-supply, air blast enters annular air-flow path from the cold wind arm through the flue take-off pipe, enters air chamber through the air port again.During hot blast stove burning, the gas chamber waste gas enters flue by the air port through annular air-flow path.
This apparatus structure is simple, and is little to former hotblast stove structural modification, less investment, and old hotblast stove is big or middle can be transformed when repairing.After using this device, the effect that the thermo-efficiency of hotblast stove and hot blast temperature improve is all very remarkable.Simultaneously, the refractory materials at this position can be saved 40-60%, remarkable in economical benefits.
Claims (2)
1 one kinds of all equipped putting of hotblast stove lower stream of airflow that are used for blast furnace, it is made of fire grate, air chamber, annular air-flow path and several air ports, it is characterized in that, and the air chamber periphery is provided with belt gas channel.
2 one kinds of all equipped putting of hotblast stove lower stream of airflow as claimed in claim 1, its air chamber is communicated with annular air-flow path by several air ports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98211683 CN2380576Y (en) | 1998-03-13 | 1998-03-13 | Device for uniformly distributing lower air-flow of blast heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98211683 CN2380576Y (en) | 1998-03-13 | 1998-03-13 | Device for uniformly distributing lower air-flow of blast heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2380576Y true CN2380576Y (en) | 2000-05-31 |
Family
ID=33966258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98211683 Expired - Fee Related CN2380576Y (en) | 1998-03-13 | 1998-03-13 | Device for uniformly distributing lower air-flow of blast heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2380576Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925608A (en) * | 2012-11-26 | 2013-02-13 | 河南省豫兴热风炉工程技术有限公司 | High-air temperature hot-air furnace with high-temperature flue and high-temperature smoke gas current equalizer |
-
1998
- 1998-03-13 CN CN 98211683 patent/CN2380576Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925608A (en) * | 2012-11-26 | 2013-02-13 | 河南省豫兴热风炉工程技术有限公司 | High-air temperature hot-air furnace with high-temperature flue and high-temperature smoke gas current equalizer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2011063672A1 (en) | Method for iron-making with full oxygen and hydrogen-rich gas and equipment thereof | |
| CN106111889A (en) | A kind of new type high temperature reclaimed sand cooling system and exhaust heat recovering method | |
| CN200955757Y (en) | Furnace slag residual heat recovery device | |
| CN104891831B (en) | Energy-saving environment-friendly active lime roasting shaft kiln | |
| CN110173976A (en) | A kind of electric arc furnaces reinforcing scrap preheater | |
| CN2380576Y (en) | Device for uniformly distributing lower air-flow of blast heater | |
| CN203024566U (en) | Energy-saving and environment-protecting high wind temperature cupola system device | |
| CN210070552U (en) | Reinforced scrap steel preheating device for electric arc furnace | |
| CN201534851U (en) | Blast furnace baking device | |
| CN1511797A (en) | Process for producing mineral wool granular cotton and its hot air system | |
| CN107502694A (en) | A kind of shaft furnace inlet duct and shaft furnace air inlet method | |
| CN211814544U (en) | Hot-blast stove with hot-blast surrounding pipe | |
| CN201250242Y (en) | Non-blast furnace ironmaking furnace | |
| CN203024570U (en) | Energy-saving environmental-friendly cupola furnace | |
| CN202329065U (en) | Roasting vertical furnace | |
| CN202912989U (en) | Hot air conveying pipeline system for top combustion stove | |
| CN208414469U (en) | Repairing mould for blast furnace ironmaking hot air duct | |
| CN103063011B (en) | Energy-saving environment-friendly high-blast-temperature cupola system equipment | |
| CN103063014B (en) | Energy-saving and environment-friendly cupola furnace | |
| CN203024568U (en) | Secondary combustion heat storage hot air furnace and cupola furnace with same | |
| CN207760394U (en) | Pin-connected panel heat-treatment furnace | |
| CN207062314U (en) | A kind of shaft furnace inlet duct | |
| CN201277706Y (en) | Temperature keeping apparatus for heat accumulation type hot air stove | |
| CN204714712U (en) | Energy-saving environment protection active lime roasting shaft kiln | |
| CN202562266U (en) | Hot-blast combustion supporting system of roller bed kiln |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |