CN209944741U - Dual-fuel energy-saving hot blast stove - Google Patents
Dual-fuel energy-saving hot blast stove Download PDFInfo
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- CN209944741U CN209944741U CN201920565871.6U CN201920565871U CN209944741U CN 209944741 U CN209944741 U CN 209944741U CN 201920565871 U CN201920565871 U CN 201920565871U CN 209944741 U CN209944741 U CN 209944741U
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- air
- combustion
- air distribution
- hot blast
- inlet
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- 239000000446 fuel Substances 0.000 title claims abstract description 13
- 238000002485 combustion reaction Methods 0.000 claims abstract description 35
- 230000009977 dual effect Effects 0.000 claims abstract description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 8
- 230000009970 fire resistant effect Effects 0.000 claims description 8
- 239000003063 flame retardant Substances 0.000 claims description 8
- 238000004321 preservation Methods 0.000 claims description 6
- 238000004880 explosion Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000010304 firing Methods 0.000 abstract description 2
- 230000002401 inhibitory effect Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 25
- 239000000295 fuel oil Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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Abstract
The utility model discloses an energy-conserving hot-blast furnace of dual fuel relates to stove formula firing equipment technical field, and it comprises furnace body and combustor, the furnace body be hollow cavity structures, the head of furnace body is equipped with the air intake, its afterbody is equipped with the air outlet, the air intake be equipped with the combustor, the furnace body is formed by combustion part, innoxious portion and the head and the tail of air distribution portion meet. The hot blast stove has good temperature control effect, avoids the generation of dioxin, and is favorable for the environmental protection emission of gas; the device is formed by connecting a combustion part, a harmless part and a wind distribution part in a head-tail manner, wherein the combustion part is mainly used for combustion temperature rise, the harmless part is used for controlling temperature and inhibiting generation of dioxin, and the wind distribution part is used for outlet gas temperature regulation; the non-condensable gas can be used for supporting combustion of the hot blast stove, an air distribution pipeline is additionally arranged for supporting combustion and adjusting the concentration of the non-condensable gas and adjusting the temperature of air distribution in the tank outlet direction, and meanwhile, a combustion-supporting air preheating channel of the air preheating device has an air preheating function, so that heat energy is not required to be consumed while supporting combustion, and the energy-saving effect is achieved.
Description
The technical field is as follows:
the utility model relates to a stove formula firing equipment technical field, concretely relates to energy-conserving hot-blast furnace of dual fuel.
Background art:
the hot blast stove is a thermal power machine, which utilizes natural gas, fuel oil and other raw materials to set the stove inside into a high-temperature environment, thereby achieving the effects of drying materials, purifying waste gas and the like. The existing hot blast stove has the defects of poor heat preservation effect in the stove, unstable temperature, uneven air distribution and delivery, overhigh temperature at an air outlet, poor temperature control effect, contribution to generation of harmful substances and low subsequent utilization rate.
The utility model has the following contents:
the utility model aims at overcoming the defects of the prior art and providing the dual-fuel energy-saving hot blast stove.
The utility model relates to a double-fuel energy-saving hot blast stove, which consists of a stove body and a burner, wherein the stove body is of a hollow cavity structure, the head part of the stove body is provided with an air inlet, the tail part of the stove body is provided with an air outlet, the air inlet is provided with the burner, and the stove body is formed by connecting a combustion part, a harmless part and an air distribution part; the inner wall of the combustion part is provided with a flame-retardant layer, a combustion-supporting air preheating channel is arranged between the outer side of the flame-retardant layer and the inner side of the combustion part, the side wall of the combustion part is provided with a non-condensable gas inlet, the air inlet end of the combustion-supporting air preheating channel is communicated with the non-condensable gas inlet, and the air outlet end of the combustion-supporting air preheating channel is communicated with the inside of the furnace body; the inner wall of the harmless part is provided with a fire-resistant layer, an air distribution channel is arranged between the outer wall of the fire-resistant layer and the inner wall of the harmless part, the side wall of the harmless part is provided with an air distribution inlet, the air inlet end of the air distribution channel is communicated with the air distribution inlet, and the air outlet end of the air distribution channel is communicated with the inside of the furnace body; the inner wall of the air distribution part is provided with a heat preservation layer.
As a further improvement of the utility model, the non-condensable gas inlet is a double-air-inlet structure.
As a further improvement of the utility model, the innoxious portion is provided with a viewing aperture and an explosion-proof door.
As a further improvement of the utility model, the side wall of the air distribution part is provided with a temperature measuring port and a pressure measuring port.
As a further improvement of the utility model, the bottom of the furnace body is provided with a saddle.
The utility model discloses a dual-fuel energy-saving hot blast stove, which has good temperature control effect, avoids the generation of dioxin and is beneficial to the environmental protection emission of gas; the device is formed by connecting a combustion part, a harmless part and a wind distribution part in a head-tail manner, wherein the combustion part is mainly used for combustion temperature rise, the harmless part is used for controlling temperature and inhibiting generation of dioxin, and the wind distribution part is used for outlet gas temperature regulation; the non-condensable gas can be used for supporting combustion of the hot blast stove, an air distribution pipeline is additionally arranged for supporting combustion and adjusting the concentration of the non-condensable gas and adjusting the temperature of air distribution in the tank outlet direction, and meanwhile, a combustion-supporting air preheating channel of the air preheating device has an air preheating function, so that heat energy is not required to be consumed while supporting combustion, and the energy-saving effect is achieved.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a sectional view of the present invention.
The specific implementation mode is as follows:
as shown in fig. 1, the dual-fuel energy-saving hot-blast stove of the present invention comprises a stove body 1 and a burner 2, wherein the stove body 1 is an outer steel stove body (as shown in fig. 2) with a hollow cavity structure, a saddle 19 is arranged at the bottom of the stove body 1, an air inlet 3 is arranged at the head of the stove body 1, and an air outlet 4 is arranged at the tail of the stove body; the air inlet 3 is provided with a burner 2, the burner 2 is a double burner, and the burner can provide energy for the burner by simultaneously utilizing fuel gas and fuel oil; the furnace body 1 is formed by connecting a combustion part 5, a harmless part 6 and an air distribution part 7 end to end, the combustion part 5 is mainly used for combustion temperature rise, the harmless part 6 is used for controlling generation of dioxin, the air distribution part 7 is used for outlet gas temperature regulation, and the length ratio of the combustion part to the harmless part 6 to the air distribution part 7 is 2:3: 2; the inner wall of the combustion part 5 is provided with a flame-retardant layer 8, and the flame-retardant layer 8 is a cement masonry wall and mainly used for retarding flame 20 inside the combustion part 5; a combustion-supporting air preheating channel 9 is arranged between the outer side of the flame-retardant layer 8 and the inner side of the combustion part 5, the preheating channel 9 is an annular channel along the inner wall of the combustion part 5, and air in the combustion-supporting air preheating channel 9 is in contact with the flame-retardant layer 8, so that the combustion-supporting air can be preheated in advance before entering the combustion part 5, and the preheating air is in combustion supporting without consuming heat energy to heat, thereby achieving the effect of energy conservation; the side wall of the combustion part 5 is provided with a non-condensable gas inlet 10, wherein the non-condensable gas inlet 10 is of a double-air-inlet structure, one air inlet of the non-condensable gas inlet is an input inlet of non-condensable gas, the other air inlet of the non-condensable gas inlet is an input inlet of air distribution air, and an air outlet of the non-condensable gas inlet is communicated with a combustion-supporting air preheating channel 9; the air inlet end of the combustion-supporting air preheating channel 9 is communicated with the non-condensable gas inlet 10, the air outlet end of the combustion-supporting air preheating channel is communicated with the interior of the furnace body 1, the air outlet direction of the air outlet of the combustion-supporting air preheating channel 9 and the horizontal direction form an angle of 45-60 degrees and are annularly arranged, so that annular air can uniformly and continuously control the temperature of high-temperature gas in all directions, the temperature control effect is good, the temperature is uniformly and rapidly reduced, and the non-condensable gas can be preheated; the inner wall of the harmless part 6 is provided with a fire-resistant layer 11, the fire-resistant layer 11 is a refractory brick masonry wall, and the fire-resistant effect can be achieved mainly when harmful substances are decomposed at high temperature in the harmless part 6; an air distribution channel 12 is arranged between the outer wall of the fire-resistant layer 11 and the inner wall of the harmless part 6, the air distribution channel 12 is an annular channel along the inner wall of the harmless part 6, the side wall of the harmless part 6 is provided with an air distribution inlet 13, the air inlet end of the air distribution channel 12 is communicated with the air distribution inlet 13, the air outlet end of the air distribution channel is communicated with the inside of the furnace body 1, the air outlet direction of the air outlet of the air distribution inlet 13 and the horizontal direction form an angle of 45-60 degrees and are annularly arranged, so that annular air can carry out uniform and continuous temperature control on high-temperature gas in all directions, and the harmless part 6 is provided with an observation port 15 and an explosion-proof door 16; the inner wall of the air distribution part 7 is provided with a heat preservation layer 14, and the heat preservation layer 14 is an aluminum silicate heat preservation plate and is mainly used for heat insulation; the side wall of the air distribution part 7 is provided with a temperature measuring port 17 and a pressure measuring port 18.
The process flow of the utility model is as follows: firstly, igniting the combustor 2, wherein the ignited combustor 2 is powered by fuel gas or fuel oil, burning flame is burnt in the combustion part 5 to generate heat energy, the temperature in the combustion part 5 can reach 1200 ℃, then introducing non-condensable gas, and performing high-temperature treatment on the non-condensable gas in the harmless part 6, wherein the temperature in the harmless part 6 is kept above 1100 ℃ so as to control the generation of dioxin; the non-condensable gas inlet 10 simultaneously provides oxygen for flame combustion; after the non-condensable gas is subjected to harmless treatment, the non-condensable gas enters the air distribution part 7, air is blown into the air distribution channel to be mixed with high-temperature gas for cooling, finally, the mixture is discharged from an air outlet, and the temperature of the discharged gas is 900 ℃ or less, so that the mixture can be used for other heat exchange processes or continues to be subjected to purification treatment.
Claims (5)
1. A double-fuel energy-saving hot blast stove comprises a stove body (1) and a burner (2), and is characterized in that the stove body (1) is of a hollow cavity structure, the head part of the stove body (1) is provided with an air inlet (3), the tail part of the stove body is provided with an air outlet (4), the burner (2) is arranged at the air inlet (3), and the stove body (1) is formed by connecting a combustion part (5), a harmless part (6) and an air distribution part (7) end to end; the inner wall of the combustion part (5) is provided with a flame-retardant layer (8), a combustion-supporting air preheating channel (9) is arranged between the outer side of the flame-retardant layer (8) and the inner side of the combustion part (5), the side wall of the combustion part (5) is provided with a non-condensable gas inlet (10), the air inlet end of the combustion-supporting air preheating channel (9) is communicated with the non-condensable gas inlet (10), and the air outlet end of the combustion-supporting air preheating channel is communicated with the inside of the furnace body (1); a fire-resistant layer (11) is arranged on the inner wall of the harmless part (6), an air distribution channel (12) is arranged between the outer wall of the fire-resistant layer (11) and the inner wall of the harmless part (6), an air distribution inlet (13) is arranged on the side wall of the harmless part (6), the air inlet end of the air distribution channel (12) is communicated with the air distribution inlet (13), and the air outlet end of the air distribution channel is communicated with the inside of the furnace body (1); the inner wall of the air distribution part (7) is provided with a heat preservation layer (14).
2. The dual-fuel energy-saving hot blast stove according to claim 1, characterized in that the non-condensable gas inlet (10) has a dual air inlet structure.
3. The dual-fuel energy-saving hot blast stove according to claim 1, characterized in that the innoxious part (6) is provided with an observation port (15) and an explosion door (16).
4. The dual-fuel energy-saving hot blast stove according to claim 1, characterized in that a temperature measuring port (17) and a pressure measuring port (18) are arranged on the side wall of the air distribution part (7).
5. The dual-fuel energy-saving hot blast stove according to claim 1 is characterized in that a saddle (19) is arranged at the bottom of the stove body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920565871.6U CN209944741U (en) | 2019-04-24 | 2019-04-24 | Dual-fuel energy-saving hot blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920565871.6U CN209944741U (en) | 2019-04-24 | 2019-04-24 | Dual-fuel energy-saving hot blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209944741U true CN209944741U (en) | 2020-01-14 |
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ID=69129561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920565871.6U Active CN209944741U (en) | 2019-04-24 | 2019-04-24 | Dual-fuel energy-saving hot blast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209944741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081591A (en) * | 2019-04-24 | 2019-08-02 | 大庆百世环保科技开发有限公司 | A kind of energy-saving double-fuel hot-blast stove |
-
2019
- 2019-04-24 CN CN201920565871.6U patent/CN209944741U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081591A (en) * | 2019-04-24 | 2019-08-02 | 大庆百世环保科技开发有限公司 | A kind of energy-saving double-fuel hot-blast stove |
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