CN203222595U - Top-combustion type hot-blast stove provided with annular table face - Google Patents
Top-combustion type hot-blast stove provided with annular table face Download PDFInfo
- Publication number
- CN203222595U CN203222595U CN 201320109627 CN201320109627U CN203222595U CN 203222595 U CN203222595 U CN 203222595U CN 201320109627 CN201320109627 CN 201320109627 CN 201320109627 U CN201320109627 U CN 201320109627U CN 203222595 U CN203222595 U CN 203222595U
- Authority
- CN
- China
- Prior art keywords
- combustion
- vault
- table top
- air
- ring
- 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 - Lifetime
Links
Images
Landscapes
- Air Supply (AREA)
Abstract
The utility model relates to a top-combustion type hot-blast stove provided with an annular table face. The top-combustion type hot-blast stove is characterized in that openings of a fuel gas combustion tube nozzle and an air combustion tube nozzle are both formed in an annular table face d, wherein the annular table face d is arranged at the upper end of a combustor between the outer wall of a thermal storage chamber and the inner wall of an arch crown straight-cylinder segment, the width of the annular table face d is 300-700mm, and the difference between a perpendicular bisector c of the arch crown and one half of the diameter b of the inner wall of the arch crown straight-cylinder segment is 200-2500mm. According to the top-combustion type hot-blast stove provided with the annular table face, the diameter of the arch crown of a combustion chamber is beneficially reduced, the stressed reasonability of an arch crown structure is improved, the nozzles of the combustor are reasonably dispersed and distributed, the annular circumferential high-temperature erosion of the mixed high temperature flue gas to the arch crown of the combustor is dispersed, the asymmetric combusting and the local high temperature are avoided, the differential temperature and the damage of the nozzles caused by the high-temperature combustion intensity in air supply and combustion change-over periods are dispersed, and the nozzles are arranged in an effective multi-angle manner, so that the flow fields of the flue gas are uniformly distributed, and the thermal efficiency is improved.
Description
Technical field
The utility model relates to field of metallurgy, is specifically related to a kind of hotblast stove, particularly a kind of top combustion stove that is provided with the table top that goes in ring.
Background technology
Hotblast stove is the important utility appliance of blast furnace ironmaking engineering, is a kind of thermal apparatus of cycling service of heating at intermittence, improves wind-warm syndrome for the blast furnace safe operation, and energy efficient reduces production costs, and it is significant to reduce noxious gas emission.Present existing Combustion of Hot Air Furnace device; problem of various degrees all in structure and combination; usually can occur in the hotblast stove coal gas and air mixed not good (burner problem) and (or) air-flow skewness (combinatorial problem between burner and vault), thereby cause incomplete combustion or problems such as combustion instability, load adjustment ability difference.If also there is problem on the structure in combustion unit with cooperating of heat transfer-regenerative apparatus body, will cause the low phenomenon of hotblast stove heat-transfer effect difference and heat storage utilization ratio.Such hotblast stove obviously can not satisfy blast furnace to the air quantity of hot blast and the requirement of wind-warm syndrome, let alone efficient, the energy-conservation and environmental protection of hotblast stove, does not also accomplish the operation with security and stability under the high hot blast temperature.
Therefore, provide a kind of simple in structure, easy to operate, high efficiency, heat energy utilization rate height, thermal losses is little, energy-conserving and environment-protective, fuel saving is saved the top combustion stove that is provided with belt table top of investment, has vast market prospect.
Summary of the invention
At the deficiencies in the prior art, the utility model provides that a kind of simple in structure, easy to operate, high efficiency, heat energy utilization rate height, thermal losses are little, the top combustion stove that is provided with the table top that goes in ring of energy-conserving and environment-protective, fuel saving, saving investment.
The technical solution of the utility model is like this: a kind of top combustion stove that is provided with the table top that goes in ring, comprise furnace body, be arranged on the combustion chamber of being formed by vault and vault direct tube section on furnace body top, the hot-blast outlet that is connected with the combustion chamber, be arranged on the regenerator of vault direct tube section bottom, be arranged on the burner of regenerator upper end outer wall, be installed in coal gas circuit and the air circuit of burner inside, gas pipe and the blast main that is connected with coal gas circuit and air circuit respectively, the gas-fired pipe nozzle that is communicated with coal gas circuit and combustion chamber, the air combustion pipe nozzle that is communicated with air circuit and combustion chamber, be arranged on the fire grate of regenerator bottom, be arranged on the cold air chamber of fire grate lower end, the cold wind inlet pipe that is connected with cold air chamber and cold wind outlet pipe, the opening of described gas-fired pipe nozzle and air combustion pipe nozzle all is arranged on the table top d that goes in ring, the table top d that should go in ring is arranged on the burner upper end between regenerator outer wall and the vault direct tube section inwall, the width of table top d of going in ring is 300 to 700 millimeters, and 1/2nd the difference of the midperpendicular c of vault and vault direct tube section inner diameter b is 200 to 2500 millimeters.
The upper surface of described belt table top d is plane or inclined-plane or concave surface or step structure.
The wall thickness of described regenerator is 230 millimeters.
The utlity model has following positively effect: the utility model is conducive to dwindle the diameter of combustion chamber vault, increase the stressed reasonableness of vault construction, increase the reasonable discrete distribution of burner nozzle, disperseed the mixing high-temperature flue gas that the combustion chamber circumferential high temperature of vault ring-type is washed away, inclined to one side burning and localized hyperthermia have been avoided, disperseed nozzle position high-temp combustion intensity that differential temperature and damage have been caused in air-supply, burning change-over period in the nozzle position, and nozzle taked the multi-angle setting effective, cause flue gas flow field to be evenly distributed, improved thermo-efficiency; The utility model has effectively been realized the rational temperature distribution with temperature of combustion to the combination of whole combustion chamber, has reached the stable of chamber structure, longevity, and specific data limit has more reasonably embodied this characteristic, has good society and economic benefit.
Description of drawings
Fig. 1 is one of structural representation of the present utility model.
Fig. 2 is one of cross sectional view of the utility model Fig. 1.
Fig. 3 be the utility model Fig. 1 cross sectional view two.
Fig. 4 is two of structural representation of the present utility model.
Fig. 5 is one of cross sectional view of the utility model Fig. 2.
Fig. 6 be the utility model Fig. 2 cross sectional view two.
Fig. 7 is the structure for amplifying synoptic diagram at the utility model Figure 1A place.
Fig. 8 is the amplification configuration diagram at the utility model Fig. 4 B place.
Embodiment
As Fig. 1,2,3,4,5,6,7, shown in 8, a kind of top combustion stove that is provided with the table top that goes in ring, comprise furnace body 1, be arranged on the combustion chamber of being formed by vault 2 and vault direct tube section 38 on furnace body 1 top, the hot-blast outlet 9 that is connected with combustion chamber 8, be arranged on the regenerator 10 of vault direct tube section 3 bottoms, be arranged on the burner 12 of regenerator 10 upper end outer walls, be installed in coal gas circuit 13 and the air circuit 14 of burner 12 inside, the gas pipe 15 that is connected with coal gas circuit 13 and air circuit 14 and blast main 16 respectively, the gas-fired pipe nozzle 11 that is communicated with coal gas circuit 13 and combustion chamber 8, the air combustion pipe nozzle 17 that is communicated with air circuit 14 and combustion chamber 8, be arranged on the fire grate 4 of regenerator 10 bottoms, be arranged on the cold air chamber 5 of fire grate 4 lower ends, the cold wind inlet pipe 7 that is connected with cold air chamber 5 and cold wind outlet pipe 6, the opening of described gas-fired pipe nozzle 11 and air combustion pipe nozzle 17 all is arranged on the table top d that goes in ring, the table top d that should go in ring is arranged on burner 12 upper ends between regenerator 10 outer walls and vault direct tube section 3 inwalls, the width of table top d of going in ring is 300 to 700 millimeters, and 1/2nd the difference of the midperpendicular c of vault 2 and vault direct tube section 3 inner diameter b is 200 to 2500 millimeters.
The upper surface of described belt table top d is plane or inclined-plane or concave surface or step structure.The wall thickness of described regenerator 10 is 230 millimeters.
Embodiment 1: as Fig. 1,2,3, shown in 7, a kind of top combustion stove that is provided with the table top that goes in ring, comprise furnace body 1, be arranged on the combustion chamber of being formed by vault 2 and vault direct tube section 38 on furnace body 1 top, the hot-blast outlet 9 that is connected with combustion chamber 8, be arranged on the regenerator 10 of vault direct tube section 3 bottoms, be arranged on the burner 12 of regenerator 10 upper end outer walls, be installed in coal gas circuit 13 and the air circuit 14 of burner 12 inside, the gas pipe 15 that is connected with coal gas circuit 13 and air circuit 14 and blast main 16 respectively, the gas-fired pipe nozzle 11 that is communicated with coal gas circuit 13 and combustion chamber 8, the air combustion pipe nozzle 17 that is communicated with air circuit 14 and combustion chamber 8, be arranged on the fire grate 4 of regenerator 10 bottoms, be arranged on the cold air chamber 5 of fire grate 4 lower ends, the cold wind inlet pipe 7 that is connected with cold air chamber 5 and cold wind outlet pipe 6, the opening of described gas-fired pipe nozzle 11 and air combustion pipe nozzle 17 all is arranged on the table top d that goes in ring, the table top d that should go in ring is arranged on burner 12 upper ends between regenerator 10 outer walls and vault direct tube section 3 inwalls, the width of table top d of going in ring is 700 millimeters, and 1/2nd the difference of the midperpendicular c of vault 2 and vault direct tube section 3 inner diameter b is 200 to 2500 millimeters.The upper surface of described belt table top d is plane or inclined-plane or concave surface or step structure.The wall thickness of described regenerator 10 is 230 millimeters.
At present; the combustion chamber vault of traditional hotblast stove adopts the taper vault; the isosceles triangle vault; spherical vault; left and right sides size combinations vault; the capable vault of peaked cap; structure formation such as big or small vault up and down; in the long-term production practice; structural instability has appearred in the vault of said structure; stressed factor such as unreasonable; at high temperature work for a long time; subsiding appears in vault; fall problems such as brick; be seriously to restrict hotblast stove to improve wind-warm syndrome; improve thermo-efficiency; the important factor that reduces cost; therefore; the opening of gas-fired pipe nozzle 11 and air combustion pipe nozzle 17 all is arranged on the table top d that goes in ring; the table top d that should go in ring is arranged on burner 12 upper ends between regenerator 10 outer walls and vault direct tube section 3 inwalls; the width of belt table top d is 700 millimeters; a difference of/2nd of the midperpendicular c of vault 2 and vault direct tube section 3 inner diameter b is 200 to 2500 millimeters; can effectively avoid above-mentioned defective; and; through test; specific data can the better protection vault; improved the work-ing life of vault; reduced the cost of maintenance and maintenance; improved working efficiency; the cross section of effectively having controlled vault is excessive; the combustion chamber vault is excessive, and strong and combustion chamber vault is stablized under hot environment.In belt table top d inside nozzle is set, makes the Combustion of Hot Air Furnace cell structure more stable, the width of the table top d that goes in ring is 700 millimeters, nozzle can be arranged on the table top d circumferential direction position in the outer part of going in ring, perhaps position in the inner part perhaps arranges between two parties, all can realize the purpose of this utility model.
Embodiment 2: as Fig. 4,5,6, shown in 8, a kind of top combustion stove that is provided with the table top that goes in ring, comprise furnace body 1, be arranged on the combustion chamber of being formed by vault 2 and vault direct tube section 38 on furnace body 1 top, the hot-blast outlet 9 that is connected with combustion chamber 8, be arranged on the regenerator 10 of vault direct tube section 3 bottoms, be arranged on the burner 12 of regenerator 10 upper end outer walls, be installed in coal gas circuit 13 and the air circuit 14 of burner 12 inside, the gas pipe 15 that is connected with coal gas circuit 13 and air circuit 14 and blast main 16 respectively, the gas-fired pipe nozzle 11 that is communicated with coal gas circuit 13 and combustion chamber 8, the air combustion pipe nozzle 17 that is communicated with air circuit 14 and combustion chamber 8, be arranged on the fire grate 4 of regenerator 10 bottoms, be arranged on the cold air chamber 5 of fire grate 4 lower ends, the cold wind inlet pipe 7 that is connected with cold air chamber 5 and cold wind outlet pipe 6, the opening of described gas-fired pipe nozzle 11 and air combustion pipe nozzle 17 all is arranged on the table top d that goes in ring, the table top d that should go in ring is arranged on burner 12 upper ends between regenerator 10 outer walls and vault direct tube section 3 inwalls, the width of table top d of going in ring is 300 millimeters, and 1/2nd the difference of the midperpendicular c of vault 2 and vault direct tube section 3 inner diameter b is 200 to 2500 millimeters.The upper surface of described belt table top d is plane or inclined-plane or concave surface or step structure.The wall thickness of described regenerator 10 is 230 millimeters.
At present; the combustion chamber vault of traditional hotblast stove adopts the taper vault; the isosceles triangle vault; spherical vault; left and right sides size combinations vault; the capable vault of peaked cap; structure formation such as big or small vault up and down; in the long-term production practice; structural instability has appearred in the vault of said structure; stressed factor such as unreasonable; at high temperature work for a long time; subsiding appears in vault; fall problems such as brick; be seriously to restrict hotblast stove to improve wind-warm syndrome; improve thermo-efficiency; the important factor that reduces cost; therefore; the opening of gas-fired pipe nozzle 11 and air combustion pipe nozzle 17 all is arranged on the table top d that goes in ring; the table top d that should go in ring is arranged on burner 12 upper ends between regenerator 10 outer walls and vault direct tube section 3 inwalls; the width of belt table top d is 300 millimeters; a difference of/2nd of the midperpendicular c of vault 2 and vault direct tube section 3 inner diameter b is 200 to 2500 millimeters; can effectively avoid above-mentioned defective; and; through test; specific data can the better protection vault; improved the work-ing life of vault; reduced the cost of maintenance and maintenance; improved working efficiency; the cross section of effectively having controlled vault is excessive; the combustion chamber vault is excessive, and strong and combustion chamber vault is stablized under hot environment.In belt table top d inside nozzle is set, makes the Combustion of Hot Air Furnace cell structure more stable, the width of the table top d that goes in ring is 300 millimeters, and nozzle can arrange between two parties.
In addition, the width of belt table top d of the present utility model is any number between 300 to 700 millimeters, all can realize the purpose that the utility model is affiliated.The utility model has realized that vault high temperature disperses, burner has a narrow range of temperature, furnace binding is reasonable, has given full play to the combined effect of hotblast stove, long service life, energy-saving and environmental protection, efficient.
Claims (3)
1. top combustion stove that is provided with the table top that goes in ring, comprise furnace body (1), be arranged on the combustion chamber of being formed by vault (2) and vault direct tube section (3) (8) on furnace body (1) top, the hot-blast outlet (9) that is connected with combustion chamber (8), be arranged on the regenerator (10) of vault direct tube section (3) bottom, be arranged on the burner (12) of regenerator (10) upper end outer wall, be installed in burner (12) inner coal gas circuit (13) and air circuit (14), the gas pipe (15) that is connected with coal gas circuit (13) and air circuit (14) and blast main (16) respectively, the gas-fired pipe nozzle (11) that is communicated with coal gas circuit (13) and combustion chamber (8), the air combustion pipe nozzle (17) that is communicated with air circuit (14) and combustion chamber (8), be arranged on the fire grate (4) of regenerator (10) bottom, be arranged on the cold air chamber (5) of fire grate (4) lower end, the cold wind inlet pipe (7) that is connected with cold air chamber (5) and cold wind outlet pipe (6), it is characterized in that: the opening of described gas-fired pipe nozzle (11) and air combustion pipe nozzle (17) all is arranged on the table top d that goes in ring, the table top d that should go in ring is arranged on burner (12) upper end between regenerator (10) outer wall and vault direct tube section (3) inwall, the width of table top d of going in ring is 300 to 700 millimeters, and 1/2nd the difference of the midperpendicular c of vault (2) and vault direct tube section (3) inner diameter b is 200 to 2500 millimeters.
2. the top combustion stove that is provided with the table top that goes in ring according to claim 1, it is characterized in that: the upper surface of described belt table top d is plane or inclined-plane or concave surface or step structure.
3. the top combustion stove that is provided with the table top that goes in ring according to claim 1, it is characterized in that: the wall thickness of described regenerator (10) is 230 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320109627 CN203222595U (en) | 2013-03-12 | 2013-03-12 | Top-combustion type hot-blast stove provided with annular table face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320109627 CN203222595U (en) | 2013-03-12 | 2013-03-12 | Top-combustion type hot-blast stove provided with annular table face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203222595U true CN203222595U (en) | 2013-10-02 |
Family
ID=49249606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320109627 Expired - Lifetime CN203222595U (en) | 2013-03-12 | 2013-03-12 | Top-combustion type hot-blast stove provided with annular table face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203222595U (en) |
-
2013
- 2013-03-12 CN CN 201320109627 patent/CN203222595U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20160230991A1 (en) | Alternate-switching regenerative combustion apparatus and control method therefor | |
| CN104595897B (en) | Single-layer porous foam ceramic plate partial pre-mixing fuel gas combustor | |
| CN202532702U (en) | Top combustion hot-blast stove capable of achieving double preheating through mix of high-temperature smoke and low-temperature smoke | |
| CN102620424A (en) | Top combustion stove with layered high and low temperature flue dual-preheating system | |
| CN100578085C (en) | Multiple fire hole flame-free ceramic burner | |
| CN203222595U (en) | Top-combustion type hot-blast stove provided with annular table face | |
| CN103333978B (en) | Top-burning hot-blast stove with cone-column composite vault structure | |
| CN201501894U (en) | Top combustion stove with jet nozzles which are in staggered arrangement for rotary jetting and precombustion chamber | |
| CN203403119U (en) | Top-combustion type hot-blast stove with tapered post compound type arch crown structure | |
| CN201581100U (en) | Efficient and energy-saving burner for top combustion stove | |
| CN201962308U (en) | High blast temperature hot blast heater with self-preheating device for air | |
| CN210237665U (en) | Ceramic body high-temperature hot blast stove with heat exchange chamber | |
| CN201809370U (en) | Vertical top-combustion blast stove improved from pebble stove | |
| CN203222594U (en) | Top combustion type hot blast stove | |
| CN203222596U (en) | Top combustion stove | |
| CN100473901C (en) | Ceramic burner with round arrangement vertical upward nozzle | |
| CN210506408U (en) | High-efficiency energy-saving high-air-temperature hot blast stove | |
| CN211814544U (en) | Hot-blast stove with hot-blast surrounding pipe | |
| CN109945192B (en) | High-calorific-value fuel concentric jet air single-heat-storage burner | |
| CN2787675Y (en) | Top burning hot blast stove | |
| CN202322893U (en) | High thermal storage top combustion stove | |
| CN201615597U (en) | Hot blast furnace | |
| CN210486081U (en) | High-temperature hot blast stove capable of directly exchanging heat | |
| CN210237664U (en) | Ceramic body high-temperature hot blast stove capable of directly burning for heat exchange | |
| CN207447336U (en) | Accumulation of heat jetting type ladle baking facilities |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131002 |
|
| CX01 | Expiry of patent term |