CN211345829U - Industrial gas flue gas drying hot blast stove - Google Patents
Industrial gas flue gas drying hot blast stove Download PDFInfo
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- CN211345829U CN211345829U CN201922251708.5U CN201922251708U CN211345829U CN 211345829 U CN211345829 U CN 211345829U CN 201922251708 U CN201922251708 U CN 201922251708U CN 211345829 U CN211345829 U CN 211345829U
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Abstract
The utility model discloses a dry hot-blast furnace of industrial gas flue gas, its characterized in that: the hot blast furnace comprises a hot blast furnace body, a heat insulation layer, a fire facing layer, an air box and a dilution fan, wherein the hot blast furnace body comprises a furnace body outer layer steel shell and a furnace body inner layer steel shell, and a gap between the furnace body outer layer steel shell and the furnace body inner layer steel shell is a normal temperature air channel; the normal-temperature air channel is connected with the air box and the dilution fan, and the air box is arranged at a burner of the hot blast stove; the heat insulation layer is a heat insulation layer made of a high-alumina fiber module; the flame-facing layer is made of high-quality heat-resistant stainless steel. The utility model discloses simple structure, easy maintenance, weight only equal build by laying bricks or pour into a mould about 25% of stove, can accomplish the thermal-insulated insulation construction of hot-blast furnace earlier under on line, directly on line the hot-blast furnace hoist and mount when needing, very big improvement the engineering progress, the life extension of stove is to three to five years moreover to there is the multilayer insulating layer, the stove outer covering surface is close to ambient temperature.
Description
Technical Field
The utility model relates to an industrial gas flue gas drying hot-blast furnace mainly provides the heat source for production industry enterprises such as steel mill, smelting plant, cement, chemical industry stoving heating and each trade flue gas emission pretreatment system.
Background
At present, most of industrial gas-fired flue gas drying hot blast stoves are furnaces with masonry or casting structures, and the adopted heat-insulating refractory materials are heavy shaped refractory bricks or unshaped various refractory castable materials. The following drawbacks are found in the existing industrial gas flue gas drying hot blast stove:
1. the masonry or cast structure furnace needs a large amount of water distribution during construction, so after the furnace is built, the furnace must be dried for at least several days or even longer, and the time for mass production is delayed;
2. if the furnace is a furnace with a slightly large size, the refractory material can only be built or poured on the line because of the heavy weight of the refractory material, otherwise the refractory material cannot be hoisted in place, and the construction period is greatly prolonged because of the occupation of a large amount of time;
3. because the heavy refractory material hardly has elastic deformation, after a period of work, the heat insulation layer often generates cracks, and high-temperature flue gas can directly reach the furnace shell through the cracks, so that the temperature of the furnace shell is greatly increased, a large amount of heat energy is wasted, and the furnace shell is usually required to be insulated to prevent heat loss and high temperature from hurting people;
4. because the heat insulation property of the heavy refractory material is not high, if the ideal shell temperature is obtained, the heat insulation layer needs to be made thick, so the appearance of the furnace is generally larger, the space of other equipment is occupied, and more materials are consumed;
5. the heat insulation layer built by heavy shaping and amorphous materials is easy to crack after working for a period of time, the high temperature directly reaches the furnace shell, and the deformation of the furnace shell aggravates the damage to the heat insulation layer, so the service life of the furnace is about one year or even shorter;
6. when the masonry or pouring furnace is maintained and repaired, the maintenance period is long because the old furnace is difficult to remove and replace.
Therefore, in summary, there is a need for an industrial gas-fired flue gas drying hot blast stove which has a long service life, is light, is convenient for integral hoisting, does not occupy the installation or production time of other equipment, is convenient for maintenance and repair, and does not need external heat preservation.
Disclosure of Invention
An object of the utility model is to provide a long service life, weight, light make things convenient for integral hoisting, do not crowd and account for other equipment fixing or production time to it is convenient to maintain, need not to carry out outer heat retaining industrial gas flue gas drying hot-blast furnace.
The utility model adopts the technical proposal that: the utility model provides a dry hot-blast furnace of industrial gas flue gas which characterized in that: the hot blast furnace comprises a hot blast furnace body, a heat insulation layer, a fire facing layer, an air box and a dilution fan, wherein the hot blast furnace body comprises a furnace body outer layer steel shell and a furnace body inner layer steel shell, and a gap between the furnace body outer layer steel shell and the furnace body inner layer steel shell is a normal temperature air channel; the normal-temperature air channel is connected with the air box and the dilution fan, and the air box is arranged at a burner of the hot blast stove; the heat insulation layer is a heat insulation layer made of a high-alumina fiber module; the flame-facing layer is made of high-quality heat-resistant stainless steel.
Furthermore, the outlet of the wind box is connected with a swirler, and the swirler is arranged at the outer side of the nozzle of the burner combustor.
Furthermore, the high-quality heat-resistant stainless steel is provided with a high-temperature-resistant coating.
The utility model discloses an each part designs into the module entirely, adopts ordinary split compound mode to connect between each part, and whole outward appearance is the monomer cylinder type, does not have complicated outer band part, if certain part of discovery damages during the maintenance, can directly change the part of damage, need not to do the modification greatly.
The utility model discloses simple structure, easy maintenance, weight only equal build by laying bricks or pour into a mould about 25% of stove, can accomplish the thermal-insulated insulation construction of hot-blast furnace earlier under on line, directly on line the hot-blast furnace hoist and mount when needing, very big improvement the engineering progress, the life extension of stove is to three to five years moreover to there is the multilayer insulating layer, the stove outer covering surface is close to ambient temperature.
Drawings
FIG. 1 is a block diagram of the present invention;
fig. 2 is a rear view of the present invention;
in the figure, 1, a steel shell is arranged on the outer layer of a furnace body; 2. a normal temperature air duct; 3. the inner layer steel shell of the furnace body; 4. a thermal insulation layer; 5. a fire-facing layer; 6. an air box; 7. a swirler; 8. a sampling port of the hearth; 9. a dilution fan.
Detailed Description
The invention will be further explained with reference to the drawings and the detailed description below:
as can be seen from the figures 1 and 2, the utility model relates to an industrial gas flue gas drying hot blast stove, its characterized in that: the hot blast furnace comprises a hot blast furnace body, a heat insulation layer, a fire facing layer, an air box and a dilution fan, wherein the hot blast furnace body comprises a furnace body outer layer steel shell and a furnace body inner layer steel shell, and a gap between the furnace body outer layer steel shell and the furnace body inner layer steel shell is a normal temperature air channel; the normal-temperature air channel is connected with the air box and the dilution fan, and the air box is arranged at a burner of the hot blast stove; the heat insulation layer is a heat insulation layer made of a high-alumina fiber module; the flame-facing layer is made of high-quality heat-resistant stainless steel.
And the outlet of the air box is connected with a swirler which is arranged at the outer side of the nozzle of the burner.
The high-quality heat-resistant stainless steel is provided with a high-temperature-resistant coating.
The utility model discloses an each part designs into the module entirely, adopts ordinary split compound mode to connect between each part, and whole outward appearance is the monomer cylinder type, does not have complicated outer band part, if certain part of discovery damages during the maintenance, can directly change the part of damage, need not to do the modification greatly.
The utility model discloses a working method:
dilution fan 9 blooms the dilution wind, gets into furnace end bellows 6 through normal atmospheric temperature wind channel 2, forms quick whirl wind behind swirler 7 and pastes and to meet flame facing layer 5 and furnace inner wall toward the stove tail direction flow, forms an isolation layer between high temperature flame and furnace inner wall, and flame facing layer then protects insulating layer 4 and avoids high velocity air to erode, and high temperature is then by insulating layer 4 and the separation of normal atmospheric temperature wind channel 2 to guarantee that the shell temperature is close to ambient temperature.
The embodiments of the present invention are only descriptions of the preferred embodiments of the present invention, not the limitations of the concept and scope of the present invention, and the technical solutions of the present invention should fall into the protection scope of the present invention without departing from the design idea of the present invention.
Claims (3)
1. The utility model provides a dry hot-blast furnace of industrial gas flue gas which characterized in that: the hot blast furnace comprises a hot blast furnace body, a heat insulation layer, a fire facing layer, an air box and a dilution fan, wherein the hot blast furnace body comprises a furnace body outer layer steel shell and a furnace body inner layer steel shell, and a gap between the furnace body outer layer steel shell and the furnace body inner layer steel shell is a normal temperature air channel; the normal-temperature air channel is connected with the air box and the dilution fan, and the air box is arranged at a burner of the hot blast stove; the heat insulation layer is a heat insulation layer made of a high-alumina fiber module; the flame-facing layer is made of high-quality heat-resistant stainless steel.
2. The industrial gas-fired flue gas drying hot blast stove according to claim 1, characterized in that: and the outlet of the air box is connected with a swirler which is arranged at the outer side of the nozzle of the burner.
3. The industrial gas-fired flue gas drying hot blast stove according to claim 1, characterized in that: the high-quality heat-resistant stainless steel is provided with a high-temperature-resistant coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922251708.5U CN211345829U (en) | 2019-12-16 | 2019-12-16 | Industrial gas flue gas drying hot blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922251708.5U CN211345829U (en) | 2019-12-16 | 2019-12-16 | Industrial gas flue gas drying hot blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211345829U true CN211345829U (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922251708.5U Active CN211345829U (en) | 2019-12-16 | 2019-12-16 | Industrial gas flue gas drying hot blast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211345829U (en) |
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2019
- 2019-12-16 CN CN201922251708.5U patent/CN211345829U/en active Active
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