CN215637121U - Adiabatic combustion furnace using steel mill sintering flue gas as combustion-supporting air - Google Patents
Adiabatic combustion furnace using steel mill sintering flue gas as combustion-supporting air Download PDFInfo
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- CN215637121U CN215637121U CN202121145211.6U CN202121145211U CN215637121U CN 215637121 U CN215637121 U CN 215637121U CN 202121145211 U CN202121145211 U CN 202121145211U CN 215637121 U CN215637121 U CN 215637121U
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Abstract
An adiabatic combustion furnace using steel mill sintering flue gas as combustion-supporting air relates to the technical field of combustion. The utility model aims to solve the problem that the prior combustion furnace can not use the sintering flue gas as the combustion-supporting air to realize the combustion of combustible materials in the combustion furnace. This is novel including plenum, sintering flue gas air distribution device, low heat value solid material conveyor, flue gas lead revolves component, combustion chamber one, combustion chamber two and flue, combustion chamber one and combustion chamber two pass through the flue and communicate, be provided with plenum and sintering flue gas air distribution device in the bottom of combustion chamber one, sintering flue gas air distribution device is in between plenum and the boiling section, by supreme solid material delivery port, organic waste liquid entry and the combustible gas entry of having set gradually down on the oven of combustion chamber one, low heat value solid material conveyor and solid material delivery port link to each other, flue gas lead revolves the component setting in combustion chamber two, and the flue gas lead revolves the axis coincidence of component and combustion chamber two. The novel heating device is mainly used for heating combustible materials by combustion.
Description
Technical Field
The utility model relates to a combustion technology, in particular to an adiabatic combustion furnace using steel mill sintering flue gas as combustion-supporting air.
Background
The combustion furnace is used for combusting combustible solid, gas and liquid in the furnace. The combustion-supporting air for the existing combustion furnace is generally air, oxygen-enriched air or pure oxygen, the combustion-supporting air and combustible substances are combusted in the combustion furnace to generate high-temperature flue gas, the carbon monoxide content of sintering flue gas discharged from a steel plant is 0.5%, the smoke discharge temperature is 130-150 ℃, and the oxygen content is 12-13%, so that the combustible substances can be directly combusted, but the sintering flue gas contains dust such as alkali metal oxide, and the dust is easy to bond at 360-400 ℃, and the existing combustion furnace technology can not use the sintering flue gas as the combustion-supporting air to realize the combustion of the combustible substances in the combustion furnace, so that the structure of the combustion furnace needs to be improved to a certain extent.
SUMMERY OF THE UTILITY MODEL
The technical problems to be solved by the utility model are as follows: the existing combustion furnace technology can not use sintering flue gas as combustion-supporting air to realize the combustion of combustible substances in the combustion furnace, and further provides an adiabatic combustion furnace using sintering flue gas of a steel mill as combustion-supporting air.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the heat insulation combustion furnace using the sintering flue gas of the steel mill as combustion-supporting air comprises an air chamber, a sintering flue gas air distribution device, a low-calorific-value solid material conveying device, a flue gas rotary guiding component, a first combustion chamber, a second combustion chamber and a flue, wherein the first combustion chamber and the second combustion chamber are communicated through the flue, the air chamber and the sintering flue gas air distribution device are arranged at the bottom of the first combustion chamber, the sintering flue gas air distribution device is positioned between the air chamber and a boiling section, a solid material conveying port, an organic waste liquid inlet and a combustible gas inlet are sequentially arranged on the wall of the first combustion chamber from bottom to top, the low-calorific-value solid material conveying device is connected with the solid material conveying port, the flue gas rotary guiding component is arranged in the second combustion chamber, and the axis of the flue gas rotary guiding component coincides with the axis of the second combustion chamber.
Compared with the prior art, the utility model has the following beneficial effects:
1. the novel furnace utilizes the sensible heat of the sintering flue gas and the latent heat of the sintering flue gas, realizes the purpose of co-combustion of low-calorific-value solids, combustible waste gas, organic waste water difficult to treat and the sintering flue gas in the furnace, and simultaneously burns off carbon monoxide in the sintering flue gas to reach the environmental protection requirement;
2. the smoke guide rotating component is arranged in the boiler, so that the dust removal effect can be effectively achieved, and the high-temperature smoke subjected to dust removal enters the boiler for steam generation;
3. when the quantity of combustible gas is insufficient, the combustion furnace can normally operate, the combustible waste gas is fully combusted, the explosion is avoided, the safety is good, organic waste water which is difficult to treat is favorably mixed and combusted through reasonable arrangement of the boiling bed, the combustion is not influenced, solid waste with low calorific value is fully utilized, and the environment is favorably protected;
4. can be widely applied to the field of sintering in steel plants, and can comprehensively recycle the generated waste gas, waste residue and organic wastewater.
Drawings
FIG. 1 is a schematic view of the overall structure of an adiabatic burner.
Detailed Description
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings:
as shown in figure 1, the heat insulation combustion furnace using the sintering flue gas of the steel mill as combustion-supporting air comprises a wind chamber 1, a sintering flue gas air distribution device 2, a low-heat-value solid material conveying device 3, a plurality of heat accumulators 5, a flue gas rotary guide component 9, a first combustion chamber 10, a second combustion chamber 11 and a flue 12, wherein the first combustion chamber 10 and the second combustion chamber 11 are communicated through the flue 12, the wind chamber 1 and the sintering flue gas air distribution device 2 are arranged at the bottom of the first combustion chamber 10, the sintering flue gas air distribution device 2 is positioned between the wind chamber 1 and a boiling section, a solid material conveying port, an organic waste liquid inlet 4 and a combustible gas inlet 6 are sequentially arranged on the furnace wall of the first combustion chamber 10 from bottom to top, and the low-heat-value solid material conveying device 3 is connected with the solid material conveying port.
In order to maintain good and stable combustion, a heating surface is not arranged in a boiling section of a hearth, a heat storage layer is arranged in a suspension section of the hearth, a plurality of heat accumulators 5 are vertically and alternately fixedly arranged on the inner wall of a combustion chamber I10, and a combustible gas inlet 6 is arranged between two heat accumulators 5.
In order to achieve the purpose of dust removal, the smoke guide rotary member 9 is arranged in the second combustion chamber 11, and the axis of the smoke guide rotary member 9 is coincident with the axis of the second combustion chamber 11.
The sintering flue gas enters the first combustion chamber 10 through the air chamber 1 and the sintering flue gas air distribution device 2, and heat energy is provided for low-calorific-value solids, combustible waste gas and organic wastewater difficult to treat.
The inner wall of the heat insulation furnace body is paved with a heat insulation furnace composite heat insulation layer 8.
The sintering flue gas air distribution device 2 comprises a pore plate and a plurality of heat insulation air caps, and the heat insulation air caps are inserted on the pore plate.
The smoke guide rotating component 9 comprises a cylinder section and a cone section, one end of the cylinder section penetrates through the furnace wall at the top end of the combustion chamber II 11, and the other end of the cylinder section is connected with the reducing end of the cone section.
The novel method firstly utilizes sensible heat of sintering flue gas (the temperature of the sintering flue gas is 130-150 ℃), the low-heat-value solid, the combustible waste gas and the high-temperature flue gas generated after the sintering flue gas is combusted are subjected to heat absorption at the hot surface, the temperature of the flue gas is 130-150 ℃), the purpose that the low-heat-value solid (5000-10467 KJ/kg), the combustible waste gas, the refractory organic wastewater and the sintering flue gas are combusted together in a furnace is realized, carbon monoxide in the sintering flue gas is combusted, the sensible heat of the sintering flue gas is fully utilized, and the requirement of environmental protection is met;
when the heat value of the combustible gas is low and the gas quantity is small, more solid with low heat value is combusted, the furnace temperature is ensured, the combustion furnace can normally operate when the gas quantity is small, the combustible waste gas is fully combusted, the explosion condition is avoided, the safety is good, the reasonable arrangement of the boiling bed part is favorable for the preparation and combustion of organic waste water which is difficult to treat, the combustion is not influenced, the solid waste with low heat value is fully utilized, and the environment is favorable.
Claims (5)
1. The utility model provides an use adiabatic burning furnace that combustion-supporting wind was made to steel mill sintering flue gas which characterized in that: it comprises an air chamber (1), a sintering flue gas air distribution device (2), a low-heat-value solid material conveying device (3), a flue gas rotary guide component (9), a combustion chamber I (10), a combustion chamber II (11) and a flue (12), the first combustion chamber (10) is communicated with the second combustion chamber (11) through a flue (12), an air chamber (1) and a sintering flue gas air distribution device (2) are arranged at the bottom of the combustion chamber I (10), the sintering flue gas air distribution device (2) is positioned between the air chamber (1) and the boiling section, a solid material conveying port, an organic waste liquid inlet (4) and a combustible gas inlet (6) are sequentially arranged on the furnace wall of the combustion chamber I (10) from bottom to top, the low-heating-value solid material conveying device (3) is connected with the solid material conveying opening, the smoke guide rotating component (9) is arranged in the second combustion chamber (11), and the axes of the smoke guide rotating component (9) and the second combustion chamber (11) are superposed.
2. The adiabatic burner of claim 1, wherein: the combustion chamber I comprises a combustion chamber I (10) and is characterized by further comprising a plurality of heat accumulators (5), wherein the heat accumulators (5) are vertically and alternately fixedly arranged on the inner wall of the combustion chamber I (10), and a combustible gas inlet (6) is arranged between two of the heat accumulators (5).
3. The adiabatic burner of claim 2, wherein: the inner wall of the furnace body is paved with a heat insulation furnace composite heat insulation layer (8).
4. The adiabatic burner of claim 3, wherein: the sintering flue gas air distribution device (2) comprises a pore plate and a plurality of heat insulation air caps, and the heat insulation air caps are inserted on the pore plate.
5. The adiabatic burner of claim 4, wherein: the smoke guide rotating component (9) comprises a cylinder section and a cone section, one end of the cylinder section penetrates through the furnace wall at the top end of the combustion chamber II (11), and the other end of the cylinder section is connected with the reducing end of the cone section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121145211.6U CN215637121U (en) | 2021-05-26 | 2021-05-26 | Adiabatic combustion furnace using steel mill sintering flue gas as combustion-supporting air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121145211.6U CN215637121U (en) | 2021-05-26 | 2021-05-26 | Adiabatic combustion furnace using steel mill sintering flue gas as combustion-supporting air |
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| Publication Number | Publication Date |
|---|---|
| CN215637121U true CN215637121U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121145211.6U Active CN215637121U (en) | 2021-05-26 | 2021-05-26 | Adiabatic combustion furnace using steel mill sintering flue gas as combustion-supporting air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215637121U (en) |
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2021
- 2021-05-26 CN CN202121145211.6U patent/CN215637121U/en active Active
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