CN107164590A - A kind of Blast Furnace Bottom - Google Patents
A kind of Blast Furnace Bottom Download PDFInfo
- Publication number
- CN107164590A CN107164590A CN201710404403.6A CN201710404403A CN107164590A CN 107164590 A CN107164590 A CN 107164590A CN 201710404403 A CN201710404403 A CN 201710404403A CN 107164590 A CN107164590 A CN 107164590A
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- China
- Prior art keywords
- cooling
- blast furnace
- straight tube
- steel plate
- grades
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- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/10—Cooling; Devices therefor
- C21B7/106—Cooling of the furnace bottom
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/24—Test rods or other checking devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The present invention proposes a kind of Blast Furnace Bottom, including furnace shell steel plate, one-level shrouding, two grades of shroudings, blast furnace foundation, sealing device, liquid feed device, cooling layer, flame retardant coating and concrete piers, the top of the blast furnace foundation is provided with two grades of shroudings, the furnace shell steel plate is erected on two grades of shroudings and forms seal casinghousing, the inwall of the furnace shell steel plate is in contact with the outer wall of baffle plate, the periphery of the furnace shell steel plate bottom is surrounded with sealing device, the liquid feed device is connected by solenoid electric valve with sealing device, two grades of shroudings are provided with concrete piers, the upper strata of the concrete piers is provided with flame retardant coating, the inwall of the furnace shell steel plate is provided with one-level shrouding, several cooling water pipe components are equipped with the cooling layer.Pass through the sealing that seal box improves blast furnace, it is to avoid furnace bottom gas leak, using flush type two-stage water-cooling pipe, and be passed through and flow to opposite coolant, it is ensured that cooling is uniform, reach blast furnace safety production and long-lived technique effect.
Description
【Technical field】
The present invention relates to the technical field of blast-furnace equipment, particularly a kind of Blast Furnace Bottom.
【Background technology】
It is circular ironmaking shaft furnace that blast furnace, which refers to cross section, blast-furnace body include from top to bottom furnace throat, shaft, furnace bosh, bosh,
Cupola well, furnace bottom, blast furnace are the capital equipments of ironmaking production, and it has the advantages that yield is big, productivity ratio is high and cost is low, and this is it
His iron smelting method is incomparable, and the major product of blast furnace process is the pig iron, also by-product blast furnace slag and blast furnace gas.Traditional
Blast Furnace Bottom is mainly formed by refractory material laying, and the damaged feature of furnace bottom is：At high temperature, the resistance machine of bottom refractory
Tool is washed away and the ability of chemical erosion is gradually reduced, and molten iron is permeated by the stomata of furnace bottom carbon brick, and is gradually dissoluted, and works as iron
When coolant-temperature gage is more than 1400 DEG C, infiltration and corrosion of the molten iron to furnace bottom occur simultaneously, and aggravate with the rise of temperature.Work as stove
When containing Pb in material, furnace bottom carbon brick is floated；For carbon brick and high-alumina brick composite burner bottom, at high temperature, the thermal expansion of high-alumina brick
Coefficient is big, the thermal coefficient of expansion of carbon brick is small so that the composite burner bottom receives thermal stress, is destroyed, and also accelerates molten iron to stove
The infiltration and corrosion at bottom, therefore propose a kind of Blast Furnace Bottom.
【The content of the invention】
The purpose of the present invention is exactly to solve the problems of the prior art, a kind of Blast Furnace Bottom is proposed, by being looped around stove
The seal box for holding tar is set on shell steel plate, the sealing of blast furnace is improved, it is to avoid furnace bottom gas leak, and pass through liquid feed device
Auto-supply, it is ensured that seal box stores enough Seal Oil, using flush type two-stage water-cooling pipe, and it is passed through opposite cold of flow direction
But liquid, it is ensured that cooling is uniform, has reached blast furnace safety production and long-lived technique effect.
To achieve the above object, the present invention proposes a kind of Blast Furnace Bottom, including furnace shell steel plate, one-level shrouding, two grades of envelopes
Set above plate, blast furnace foundation, sealing device, liquid feed device, cooling layer, flame retardant coating and concrete piers, the blast furnace foundation
There is annular on two grades of shroudings, two grades of shroudings to be provided with baffle plate, the furnace shell steel plate, which is erected on two grades of shroudings, forms sealing
Housing, the inwall of the furnace shell steel plate is in contact with the outer wall of baffle plate, and the periphery of the furnace shell steel plate bottom is surrounded with sealing dress
Put, the liquid feed device is provided with solenoid electric valve, and the solenoid electric valve is connected by delivery pipe body with sealing device, described
Two grades of shroudings are provided with concrete piers, and the upper strata of the concrete piers is provided with flame retardant coating, and the inwall of the furnace shell steel plate is set
There is one-level shrouding, the cooling layer is layed between flame retardant coating, one-level shrouding, and several cooling waters are equipped with the cooling layer
Tube assembly.
Preferably, the cooling layer also includes the carbon ramming bed of material and heat-sink shell, the cooling water pipe component is layed in
In the carbon ramming bed of material, the levels of the carbon ramming bed of material are coated with heat-sink shell.
Preferably, the liquid feed device also includes containing in casing, control unit and the second liquid level sensor, the casing
Equipped with sealing tar, the casing is provided with the pump housing, and the pump housing is connected by delivery pipe body solenoid electric valve, second liquid
Level sensor is arranged in casing, and described control unit is connected with the second liquid level sensor, the described control unit control pump housing, electricity
Alarm device is additionally provided with magnetic control valve events, the casing, the alarm device is connected with control unit.
Preferably, being provided with the first liquid level sensor in the sealing device, first liquid level sensor is filled with feed flow
Put connected.
Preferably, the cooling water pipe component include one-level water cooling tube and two-stage water-cooling pipe, the one-level water cooling tube with
The shape in gap is in bow font between two-stage water-cooling pipe, and the one-level water cooling tube and two-stage water-cooling pipe are located at the mouth of pipe with one end
Coolant is flowed on the contrary, the one-level water cooling tube includes the first straight tube, the second straight tube, the 3rd straight tube, the first bridge piece and the
Two bridge pieces, first straight tube, the second straight tube, the 3rd straight tube are parallel to each other, and second straight tube is located at the first straight tube, the
Between three straight tubes, one end of second straight tube is connected by the first bridge piece with the first straight tube, second straight tube it is another
One end is connected by the second bridge piece with the 3rd straight tube.
Preferably, first bridge piece, the shape of the second bridge piece are semicircle, first connecting bending
Circular diameter length where pipe is two times of circular diameter length where the second bridge piece, two adjacent one-level water cooling tubes and
The center of circle of circle coincides where the circular arc of two-stage water-cooling pipe corner.
Preferably, the one-level shrouding is connected with furnace shell steel plate by connecting plate, the cross sectional shape of the connecting plate is
Circular arc.
Beneficial effects of the present invention：The present invention is filled by furnace shell steel plate, one-level shrouding, two grades of shroudings, blast furnace foundation, sealings
Put, the cooperation of liquid feed device, cooling layer, flame retardant coating and concrete piers etc., by holding being looped around to set on furnace shell steel plate
The seal box of tar, improves the sealing of blast furnace, it is to avoid furnace bottom gas leak, liquid level detecting sensor is set in seal box,
Liquid level is monitored in real time and is passed in the control unit in liquid feed device, when liquid level, which is less than, specifies numerical value, controls feed flow
Device inner pump and Electromagnetic Control valve events auto-supply, it is ensured that seal box stores enough Seal Oils, in addition also in storage
The sensor of monitoring liquid level is set in oil box, implements alarm when liquid level is relatively low, reminds staff to supplement fuel reserve tank in time
In fluid, using flush type two-stage water-cooling pipe, and be passed through and flow to opposite coolant, can avoid being located at close to outlet pipe
The position coolant temperature of one end is higher, causes the problem of inhomogeneous cooling is even, it is ensured that cooling effect, has reached blast furnace safety production
With long-lived technique effect.
The feature and advantage of the present invention will be described in detail by embodiment combination accompanying drawing.
【Brief description of the drawings】
Fig. 1 is a kind of cross section structure schematic diagram of Blast Furnace Bottom of the invention；
Fig. 2 is a kind of structural representation of the cooling water pipe component of Blast Furnace Bottom of the invention；
Fig. 3 is a kind of structural representation of the one-level water cooling tube of Blast Furnace Bottom of the invention.
【Embodiment】
Refering to a kind of Blast Furnace Bottom of Fig. 1 to Fig. 3 present invention, including furnace shell steel plate 1, one-level shrouding 2, two grades of shroudings 3, blast furnaces
Basis 4, sealing device 5, liquid feed device 6, cooling layer 7, flame retardant coating 8 and concrete piers 9, the top of the blast furnace foundation 4 is set
There is annular on two grades of shroudings 3, two grades of shroudings 3 to be provided with baffle plate 31, the furnace shell steel plate 1 is erected at shape on two grades of shroudings 3
Into seal casinghousing, the inwall of the furnace shell steel plate 1 is in contact with the outer wall of baffle plate 31, the peripheral ring of the bottom of furnace shell steel plate 1
Sealing device 5 is wound with, the liquid feed device 6 is provided with solenoid electric valve 611, and the solenoid electric valve 611 passes through delivery pipe body
It is connected with sealing device 5, two grades of shroudings 3 are provided with concrete piers 9, the upper strata of the concrete piers 9 is provided with fire resisting
Layer 8, the inwall of the furnace shell steel plate 1 is provided with one-level shrouding 2, and the cooling layer 7 is layed between flame retardant coating 8, one-level shrouding 2,
Several cooling water pipe components 73 are equipped with the cooling layer 7.The cooling layer 7 also includes the carbon ramming bed of material 71 and heat absorption
Layer 72, the cooling water pipe component 73 is layed in the carbon ramming bed of material 71, and the levels of the carbon ramming bed of material 71 are wrapped
It is covered with heat-sink shell 72.The liquid feed device 6 also includes casing 61, the liquid level sensor 63 of control unit 62 and second, the casing
Sealing tar is loaded with 61, the casing 61 is provided with the pump housing, and the pump housing passes through the phase of delivery pipe body solenoid electric valve 611
Even, second liquid level sensor 63 is arranged in casing 61, and described control unit 62 is connected with the second liquid level sensor 63, institute
State the control of control unit 62 pump housing, solenoid electric valve 611 to act, alarm device, the alarm dress are additionally provided with the casing 61
Put and be connected with control unit 62.Be provided with the first liquid level sensor 51 in the sealing device 5, first liquid level sensor 51 with
Liquid feed device 6 is connected.The cooling water pipe component 73 includes one-level water cooling tube 731 and two-stage water-cooling pipe 732, the one-level water cooling
The shape in gap is in bow font, the one-level water cooling tube 731 and two-stage water-cooling pipe 732 between pipe 731 and two-stage water-cooling pipe 732
Flowed in the coolant of the mouth of pipe of same one end on the contrary, the one-level water cooling tube 731 includes the first straight tube 7311, the second straight tube
7312nd, the 3rd straight tube 7313, the first bridge piece 7314 and the second bridge piece 7315, first straight tube 7311, second are straight
Pipe 7312, the 3rd straight tube 7313 are parallel to each other, second straight tube 7312 be located at the first straight tube 7311, the 3rd straight tube 7313 it
Between, one end of second straight tube 7312 is connected by the first bridge piece 7314 with the first straight tube 7311, second straight tube
7312 other end is connected by the second bridge piece 7315 with the 3rd straight tube 7313.First bridge piece 7314, second
The shape of bridge piece 7315 is semicircle, and the place circular diameter length of the first bridge piece 7314 is the second bridge piece
The circle of two times of 7315 place circular diameter length, two adjacent one-level water cooling tubes 731 and the corner of two-stage water-cooling pipe 732
The center of circle of circle coincides where arc.The one-level shrouding 2 is connected with furnace shell steel plate 1 by connecting plate 21, the connecting plate 21
Cross sectional shape is circular arc.
The course of work of the present invention：
A kind of Blast Furnace Bottom of the present invention, during work, by holding tar being looped around to set on furnace shell steel plate 1
Sealing device 5, the first liquid level sensor 51 is set in seal box, and monitoring liquid level simultaneously passes to liquid feed device 6 in real time
In interior control unit 62, when liquid level is less than the numerical value set in sealing device 5, in the control liquid feed device 6 of control unit 62
The pump housing and solenoid electric valve 611 are acted, auto-supply, it is ensured that the enough tar of storage in sealing device 5, it is possible to increase blast furnace
Sealing, it is to avoid furnace bottom gas leak, in addition also sets the second liquid level sensor of monitoring liquid level in oil storage casing 61
63, when the liquid level in casing 61 is relatively low, the control of control unit 62 warning device work, implements alarm, reminds staff timely
The fluid in liquid feed device 6 is supplemented, cooling layer 7 uses flush type two-stage water-cooling pipe, and two in cooling water pipe component 73
It is passed through in individual water pipe and flows to opposite coolant, the position coolant temperature being located at close to outlet pipe one end can be avoided higher,
Cause the problem of inhomogeneous cooling is even, it is ensured that cooling effect, reached blast furnace safety production and long-lived technique effect, in one-level envelope
The junction of plate 2 and furnace shell steel plate 1 sets arc pressuring plate 21, can buffer the thermal stress deformation of furnace shell junction, forms anti-
The only sealant of gas leakage.
Above-described embodiment is the description of the invention, is not limitation of the invention, it is any to simple transformation of the present invention after
Scheme belong to protection scope of the present invention.
Claims (7)
1. a kind of Blast Furnace Bottom, it is characterised in that：Including furnace shell steel plate (1), one-level shrouding (2), two grades of shroudings (3), high furnace foundations
Plinth (4), sealing device (5), liquid feed device (6), cooling layer (7), flame retardant coating (8) and concrete piers (9), the blast furnace foundation
(4) top is provided with annular on two grades of shroudings (3), two grades of shroudings (3) and is provided with baffle plate (31), the furnace shell steel plate (1)
It is erected on two grades of shroudings (3) and forms seal casinghousing, the inwall of the furnace shell steel plate (1) is in contact with the outer wall of baffle plate (31),
The periphery of furnace shell steel plate (1) bottom is surrounded with sealing device (5), and the liquid feed device (6) is provided with solenoid electric valve
(611), the solenoid electric valve (611) is connected by delivery pipe body with sealing device (5), and two grades of shroudings (3) are provided with
Concrete piers (9), the upper strata of the concrete piers (9) is provided with flame retardant coating (8), and the inwall of the furnace shell steel plate (1) is provided with
One-level shrouding (2), the cooling layer (7) is layed between flame retardant coating (8), one-level shrouding (2), is laid in the cooling layer (7)
There are several cooling water pipe components (73).
2. a kind of Blast Furnace Bottom as claimed in claim 1, it is characterised in that：The cooling layer (7) also includes carbon ramming mass
Layer (71) and heat-sink shell (72), the cooling water pipe component (73) are layed in the carbon ramming bed of material (71), the carbon ramming
The levels of the bed of material (71) are coated with heat-sink shell (72).
3. a kind of Blast Furnace Bottom as claimed in claim 1, it is characterised in that：The liquid feed device (6) also include casing (61),
It is loaded with control unit (62) and the second liquid level sensor (63), the casing (61) on sealing tar, the casing (61)
Provided with the pump housing, the pump housing is connected by delivery pipe body solenoid electric valve (611), and second liquid level sensor (63) is arranged on
In casing (61), described control unit (62) is connected with the second liquid level sensor (63), described control unit (62) the control pump housing,
Solenoid electric valve (611) is acted, and alarm device, the alarm device and control unit (62) phase are additionally provided with the casing (61)
Even.
4. a kind of Blast Furnace Bottom as claimed in claim 1, it is characterised in that：The first liquid level is provided with the sealing device (5)
Sensor (51), first liquid level sensor (51) is connected with liquid feed device (6).
5. a kind of Blast Furnace Bottom as claimed in claim 1, it is characterised in that：The cooling water pipe component (73) includes one-level water
Cold pipe (731) and two-stage water-cooling pipe (732), the shape in gap between the one-level water cooling tube (731) and two-stage water-cooling pipe (732)
In bow font, the one-level water cooling tube (731) and two-stage water-cooling pipe (732) flow to phase positioned at the coolant of the mouth of pipe with one end
Instead, the one-level water cooling tube (731) includes the first straight tube (7311), the second straight tube (7312), the 3rd straight tube (7313), the first company
Connect bend pipe (7314) and the second bridge piece (7315), first straight tube (7311), the second straight tube (7312), the 3rd straight tube
(7313) it is parallel to each other, second straight tube (7312) is located between the first straight tube (7311), the 3rd straight tube (7313), described the
One end of two straight tubes (7312) is connected by the first bridge piece (7314) with the first straight tube (7311), second straight tube
(7312) the other end is connected by the second bridge piece (7315) with the 3rd straight tube (7313).
6. a kind of Blast Furnace Bottom as claimed in claim 5, it is characterised in that：First bridge piece (7314), second connect
The shape for connecing bend pipe (7315) is semicircle, and circular diameter length where first bridge piece (7314) is the second connecting bending
Two times of circular diameter length where managing (7315), two adjacent one-level water cooling tubes (731) and two-stage water-cooling pipe (732) are turned
The center of circle of circle coincides where circular arc at angle.
7. a kind of Blast Furnace Bottom as claimed in claim 1, it is characterised in that：The one-level shrouding (2) is led to furnace shell steel plate (1)
Cross connecting plate (21) to be connected, the cross sectional shape of the connecting plate (21) is circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710404403.6A CN107164590A (en) | 2017-06-01 | 2017-06-01 | A kind of Blast Furnace Bottom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710404403.6A CN107164590A (en) | 2017-06-01 | 2017-06-01 | A kind of Blast Furnace Bottom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107164590A true CN107164590A (en) | 2017-09-15 |
Family
ID=59821459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710404403.6A Withdrawn CN107164590A (en) | 2017-06-01 | 2017-06-01 | A kind of Blast Furnace Bottom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107164590A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108796154A (en) * | 2018-09-10 | 2018-11-13 | 包头轻工职业技术学院 | Blast furnace ironmaking equipment with high leakproofness furnace bottom |
| CN110671890A (en) * | 2019-11-06 | 2020-01-10 | 核工业理化工程研究院 | Cold-hot type thermostat for feeding and taking system |
-
2017
- 2017-06-01 CN CN201710404403.6A patent/CN107164590A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108796154A (en) * | 2018-09-10 | 2018-11-13 | 包头轻工职业技术学院 | Blast furnace ironmaking equipment with high leakproofness furnace bottom |
| CN108796154B (en) * | 2018-09-10 | 2020-05-22 | 包头轻工职业技术学院 | Blast furnace ironmaking equipment with high-sealing furnace bottom |
| CN110671890A (en) * | 2019-11-06 | 2020-01-10 | 核工业理化工程研究院 | Cold-hot type thermostat for feeding and taking system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170915 |
|
| WW01 | Invention patent application withdrawn after publication |