CN212620154U - Regulation and control type high-strength air cooling device for bottom of iron alloy electric furnace - Google Patents
Regulation and control type high-strength air cooling device for bottom of iron alloy electric furnace Download PDFInfo
- Publication number
- CN212620154U CN212620154U CN202021171708.0U CN202021171708U CN212620154U CN 212620154 U CN212620154 U CN 212620154U CN 202021171708 U CN202021171708 U CN 202021171708U CN 212620154 U CN212620154 U CN 212620154U
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- China
- Prior art keywords
- air
- pipe
- air cooling
- furnace
- cooling
- Prior art date
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- 238000001816 cooling Methods 0.000 title claims abstract description 60
- 229910000640 Fe alloy Inorganic materials 0.000 title claims abstract description 14
- 230000033228 biological regulation Effects 0.000 title claims abstract description 9
- 229910001021 Ferroalloy Inorganic materials 0.000 claims abstract description 35
- 210000001513 Elbow Anatomy 0.000 claims description 10
- 238000003723 Smelting Methods 0.000 abstract description 8
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 238000005457 optimization Methods 0.000 description 6
- 239000011449 brick Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000011819 refractory material Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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Abstract
The utility model relates to a ferroalloy electric stove is regulation and control type high-strength air cooling device for stove bottom, include: the air cooling pipe is horizontally laid at the bottom of the iron alloy electric furnace body; the air inlet and collection box is communicated with the air inlet end of the air cooling pipe; the air outlet gas collecting box is communicated with the air outlet end of the air cooling pipe; one end of the main air pipe is communicated with the air inlet and collection tank, and the other end of the main air pipe is connected with a fan; and the chimney is communicated with the air outlet end of the air outlet and air collecting box. The utility model provides a ferroalloy electric stove is stove bottom with regulation and control type high-strength air cooling device has the cooling intensity height, and adjustable, control cooling intensity, can solve large-scale intensive smelting ferroalloy electric stove bottom temperature height, the short problem of furnace lining life.
Description
Technical Field
The utility model relates to the technical field of metallurgical equipment, in particular to a ferroalloy electric furnace, more particularly to a regulating and controlling type high-strength air cooling device for the furnace bottom of the ferroalloy electric furnace.
Background
In the process of smelting the ferroalloy electric furnace, the temperature in the furnace is higher, in order to ensure the normal use of refractory materials in the furnace, a smelting plant usually installs I-beams under a furnace bottom steel plate, 2-3 axial flow fans are used for blowing air to gaps among the I-beams to reduce the temperature of the furnace bottom, because the pressure of the axial flow fans is higher, positive pressure is formed in gaps among the furnace bottom I-shaped steels, and due to the alternative implementation of cold and hot air, welding seams are easy to crack at the welding positions of the furnace bottom steel plates, air enters refractory materials in the furnace from the positions, in particular to a furnace bottom brick lining in a refractory material in a furnace, the material of the furnace bottom brick lining is carbon bricks, the carbon bricks begin to be oxidized at about 400 ℃, the oxidized furnace bottom carbon bricks are damaged, then the molten iron erodes the furnace bottom lining to destroy the organization structure of the furnace bottom refractory material, so that the service life of the furnace lining of the ferroalloy electric furnace is shortened; and the application of the axial flow fan increases the production equipment cost of a smelting plant and consumes a large amount of electric energy.
In view of the fact that how to provide suitable forced cooling is an effective measure for achieving the life of the lining of the electric furnace, the prior art also provides the following means for cooling the furnace bottom:
(1) the channel between the I-shaped steel is utilized to dissipate heat through air convection and temperature difference transmission;
(2) an air blower is arranged at one end of the I-shaped steel, so that the gas flow and the flow speed are improved, and forced heat dissipation is realized;
(3) an air outlet is arranged at the central part of the I-shaped steel, so that cold gas is diffused to the periphery, and the central part of the furnace bottom is enhanced to be cooled;
(4) a ventilation pipe is arranged in the furnace lining, an air suction pipeline is arranged at one end of the ventilation pipe, and the temperature of the furnace lining is reduced by utilizing the chimney air suction principle, namely a natural air cooling device.
The 4 cooling modes are mainly suitable for cooling the bottom of medium and small ferroalloy electric furnaces, have low cooling strength, and cannot adjust and control the cooling strength, but the practical requirements are difficult to meet with the increasing large-scale and intensified smelting of the ferroalloy electric furnaces.
Based on the above, the applicant provides a regulating and controlling type high-strength air cooling device for the bottom of a ferroalloy electric furnace, so as to solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
To the problem among the prior art, the utility model provides a ferroalloy electric stove is stove bottom with regulation and control type high-strength air cooling device has the cooling intensity height, and adjustable, control cooling intensity, can solve large-scale intensive smelting ferroalloy electric stove bottom temperature height, problem that furnace lining life is short.
In order to achieve the purpose, the utility model discloses a following technical scheme realizes:
a kind of ferroalloy electric stove bottom uses the high-strength air-cooled device of regulation and control type, including:
the air cooling pipe is horizontally laid at the bottom of the iron alloy electric furnace body;
the air inlet and collection box is communicated with the air inlet end of the air cooling pipe;
the air outlet gas collecting box is communicated with the air outlet end of the air cooling pipe;
one end of the main air pipe is communicated with the air inlet and collection tank, and the other end of the main air pipe is connected with a fan;
and the chimney is communicated with the air outlet end of the air outlet and air collecting box.
As the utility model discloses structural optimization improves, 1 is no less than to the quantity of forced air cooling pipe, and equidistant distribution between the forced air cooling pipe.
As an optimized improvement on the structure of the utility model, the air-cooled pipes are hot-rolled seamless steel pipes with the diameter of phi 100 mm-phi 200mm and the wall thickness of 6mm-10mm, and the distance between the adjacent air-cooled pipes is 200-350 mm.
As the utility model discloses structural optimization improves, be provided with the sleeve pipe between forced air cooling pipe both ends and the ferroalloy furnace body, and this sleeve pipe welds integratively with the furnace body of ferroalloy electric stove.
As the utility model discloses structural optimization improves, install electronic valve between air inlet gas collecting box and main air hose.
As the utility model discloses structural one kind optimizes the improvement, the motor of fan is inverter motor.
As the utility model discloses structural optimization improves, install centrum and elbow on the air-out gas collecting box, the elbow is linked together with the chimney.
As the utility model discloses structural optimization improves, the bore of the one end that centrum and air-out gas collecting box are connected is greater than the bore of the one end of being connected with the elbow.
As an optimized improvement on the structure of the utility model, the chimney is a spiral steel pipe with the diameter phi of 800mm to 1500mm and the wall thickness of 4mm to 10 mm.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a fan, the main tuber pipe, the air inlet gas collecting tank, the air-cooled pipe, the gas collecting tank and the chimney of giving vent to anger that establish ties in proper order, namely through starting the fan, the fan pushes away the air in proper order to main tuber pipe and air inlet gas collecting tank, lead to the air-cooled pipe by the extremely case of air inlet again, and the rich heat of long-pending in ferroalloy electric stove is led to stove air-cooled pipe through the furnace lining, carry out the heat exchange with the air in the air-cooled pipe, absorb the heat in the stove, then discharge through the chimney again, along with the air of incessant entering the air-cooled pipe, and take away the heat in the stove, thereby reach the purpose that reduces ferroalloy electric stove bottom temperature;
the device of the utility model greatly improves the cooling strength of the bottom of the ferroalloy electric furnace, enables the molten iron solidification line at the bottom of the furnace to move upwards, reduces the chemical erosion and infiltration of molten iron and other impurities to the lining material, prolongs the service life of the ferroalloy electric furnace, and ensures the purposes of high efficiency, long service life, energy conservation and safety of the ferroalloy electric furnace;
additionally, the utility model discloses can carry out the regional division of stringing according to the requirement of smelting the temperature to the stove bottom to arrange cooling tube density in a rational basis, and arrange, governing valve application, motor frequency modulation, trinity's design through the cooling tube, thereby can accurate regulation and control cooling strength, it is high to solve large-scale intensive smelting iron alloy electric stove bottom temperature, and the difficult problem that furnace wall life is short makes its one generation of stove labour life-span realize more than 10 years, has improved the life of furnace wall greatly.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the direction of a regulated high-strength air cooling device for a bottom of a ferroalloy electric furnace according to the present invention, which is mounted on site after being combined with the ferroalloy electric furnace;
FIG. 2 is a schematic view of the top view of the iron alloy electric furnace with the adjustable high-strength air cooling device combined with the iron alloy electric furnace and installed on site;
labeled as: 1. the device comprises a fan, 2, a main air pipe, 3, an air inlet gas collecting box, 4, an air cooling pipe, 5, an air outlet gas collecting box, 6, a chimney, 7, a sleeve, 8, a flange, 9, an electronic valve, 10, a buffer joint, 11, a valve, 12, a cone, 13, an elbow, 14 and rubber flexible connection.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or circuit connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.
Referring to fig. 1-2, the utility model discloses a ferroalloy electric stove is regulation and control type high-strength air cooling device for stove bottom, its gross structure includes:
the air-cooled pipe 4 is horizontally laid at the bottom of the iron alloy electric furnace body;
the air inlet gas collecting box 3 is communicated with the air inlet end of the air cooling pipe 4;
the air outlet gas collecting box 5 is communicated with the air outlet end of the air cooling pipe 4;
one end of the main air pipe 2 is communicated with the air inlet and collection box 3, and the other end of the main air pipe 2 is connected with the fan 1;
and the chimney 6 is communicated with the air outlet end of the air outlet and gas collecting box 5.
Like this, through above-mentioned fan 1, main tuber pipe 2, air inlet gas collecting box 3, air-cooled pipe 4, the gas collecting box 5 and chimney 6 of giving vent to anger that establish ties in proper order, like this, through starting fan 1, fan 1 pushes away the air to main tuber pipe 2 and air inlet gas collecting box 3 in proper order, lead to air-cooled pipe 4 by air inlet gas collecting box 3 again, and the heat of iron alloy electric stove interior rich deposit is led to stove air-cooled pipe 4 through the furnace lining, carries out the heat exchange with the air in the air-cooled pipe 4, absorbs the heat in the stove, then discharges through chimney 6, along with the air that is continuous, enters air-cooled pipe 4, and carry the heat in the stove, thereby reach the purpose of reducing iron alloy electric stove bottom temperature, improve the life of iron alloy electric stove furnace lining.
As an optimization improvement, a sleeve 7 is arranged between the two ends of the air cooling pipe 4 and the iron alloy furnace body, and the sleeve 7 and the iron alloy furnace body are welded into a whole, specifically: when the device is installed, a through hole is drilled at the lower part of the furnace body of the ferroalloy electric furnace, the air cooling pipe 4 is inserted into the through hole, the two ends of the air cooling pipe 4 are sleeved with the sleeves 7, the sleeves 7 are welded with the furnace body into a whole, and then the air cooling pipe 4 and the sleeves 7 are welded together outside the furnace.
In addition, in order to strengthen the cooling intensity and the cooling speed of the utility model, the number of the air cooling pipes 4 is not less than 1, and the air cooling pipes 4 are distributed at equal intervals, preferably, the hot-rolled seamless steel pipe with the diameter of phi 100 mm-phi 200mm and the wall thickness of 6mm-10mm is selected as the air cooling pipes 4, and the interval between the adjacent air cooling pipes 4 is 200-350 mm.
Preferably, a flange 8 is arranged between the air inlet gas collecting box 3 and the furnace body, so that the installation and maintenance are convenient, in addition, the air inlet gas collecting box 3 is of a circular arc structure, the air cooling pipe 4 extends into the inner side of the circular arc structure of the air inlet gas collecting box 3, and the main air pipe 2 extends into the outer side of the circular arc structure of the air inlet gas collecting box 3.
In addition, in order to remotely control and adjust the air volume of each air-cooled pipe 4 at any time, an electronic valve 9 is arranged between the air inlet and collection box 3 and the main air pipe 2.
In addition, the main air pipe 2 can be a spiral steel pipe with the diameter of phi 600 mm-phi 1000mm and the wall thickness of 4mm-10 mm.
In addition, the motor of the fan 1 is preferably a variable frequency motor, so that the air output can be remotely controlled and adjusted at any time, the number of the fans 1 is two (one is used for another), and a buffer joint 10 and a valve 11 are arranged between the fan 1 and the main air pipe 2, so that the valve 11 matched with the opened fan 1 is completely opened, and the valve matched with the standby fan is tightly closed.
Further, a cone 12 and an elbow 13 are installed on the air-out air collection box 5, the elbow 13 is communicated with the chimney 6, and preferably, the caliber of one end of the cone 12 connected with the air-out air collection box 5 is larger than that of one end connected with the elbow 13.
In addition, the chimney 6 is a spiral steel pipe with the diameter of phi 800 mm-phi 1500mm and the wall thickness of 4mm-10mm, and the chimney 6 is further provided with a rubber flexible connection 14.
To sum up, the utility model discloses the use of device has improved the cooling strength at the bottom of the ferroalloy electric stove greatly, makes the bottom of the stove molten iron coagulation line shift up, has reduced chemical attack and the infiltration of molten iron and other impurity to the lining material, has improved the life of ferroalloy electric stove, has guaranteed ferroalloy electric stove high efficiency, longe-lived, energy-conserving, safe purpose.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A kind of ferroalloy electric stove bottom uses the high-strength air-cooled device of regulation and control type, characterized by that, including:
the air cooling pipe is horizontally laid at the bottom of the iron alloy electric furnace body;
the air inlet and collection box is communicated with the air inlet end of the air cooling pipe;
the air outlet gas collecting box is communicated with the air outlet end of the air cooling pipe;
one end of the main air pipe is communicated with the air inlet and collection tank, and the other end of the main air pipe is connected with a fan;
and the chimney is communicated with the air outlet end of the air outlet and air collecting box.
2. The adjustable high-strength air cooling device for the bottom of the ferroalloy electric furnace as recited in claim 1, wherein the number of the air cooling pipes is not less than 1, and the air cooling pipes are distributed at equal intervals.
3. The adjustable high-strength air cooling device for the bottom of the ferroalloy electric furnace as claimed in claim 1, wherein a sleeve is arranged between both ends of the air cooling pipe and the ferroalloy furnace body, and the sleeve and the ferroalloy electric furnace body are welded into a whole.
4. The adjustable high-strength air cooling device for the bottom of the ferroalloy electric furnace according to claim 1, wherein a motor of the fan is a variable frequency motor.
5. The adjustable high-strength air cooling device for the bottom of the ferroalloy electric furnace as claimed in claim 1, wherein the air outlet and gas collecting box is provided with a cone and an elbow, and the elbow is communicated with a chimney.
6. The adjustable high-strength air cooling device for the bottom of the ferroalloy electric furnace as claimed in claim 5, wherein the caliber of the end of the cone connected with the air outlet and air collecting box is larger than the caliber of the end connected with the elbow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021171708.0U CN212620154U (en) | 2020-06-23 | 2020-06-23 | Regulation and control type high-strength air cooling device for bottom of iron alloy electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021171708.0U CN212620154U (en) | 2020-06-23 | 2020-06-23 | Regulation and control type high-strength air cooling device for bottom of iron alloy electric furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212620154U true CN212620154U (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021171708.0U Active CN212620154U (en) | 2020-06-23 | 2020-06-23 | Regulation and control type high-strength air cooling device for bottom of iron alloy electric furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212620154U (en) |
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2020
- 2020-06-23 CN CN202021171708.0U patent/CN212620154U/en active Active
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