CN208414469U - Repairing mould for blast furnace ironmaking hot air duct - Google Patents
Repairing mould for blast furnace ironmaking hot air duct Download PDFInfo
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- CN208414469U CN208414469U CN201820667165.8U CN201820667165U CN208414469U CN 208414469 U CN208414469 U CN 208414469U CN 201820667165 U CN201820667165 U CN 201820667165U CN 208414469 U CN208414469 U CN 208414469U
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- air duct
- mould
- blast furnace
- hot air
- furnace ironmaking
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Abstract
The utility model relates to a kind of repairing moulds for blast furnace ironmaking hot air duct, belong to technical field of blast furnace ironmaking.The hot air duct is equipped with steel pipe walls, and the repairing mould includes the mould that hangs being put together by two panels curved plate, and two panels curved plate is crosslinked by hinge to be hinged；The mould that hangs is removable on the suspension centre to be connected with wirerope equipped with several suspension centres.The utility model can quickly repair the blast furnace high-temperature hot-air pipeline for the refractory material that falls off online, and blast furnace is avoided to stop production for a long time.
Description
Technical field
The utility model relates to a kind of repairing moulds for blast furnace ironmaking hot air duct, belong to blast furnace technology neck
Domain.
Background technique
It is exactly that iron ore, coke and portion is added from the top of blast furnace according to certain charging system for blast furnace ironmaking is popular
Point flux, while the cold wind that air blower conveying comes is heated to 1230 DEG C or so in hot-blast stove, it is continuous by hot air duct
It is constantly sent into inside blast furnace from blast-furnace tuyere position, and the iron ore, coke and the portion of flux that are added from top are in blast furnace
Reduction reaction is carried out, the coal gas of generation enters gas recovery system from Top of BF, and high temperature liquid iron, the clinker of production are arranged from iron mouth
Out.
The hot air duct of blast furnace is one of hot air duct, and air blower conveying comes to have the cold wind of certain pressure, in hot wind
After being heated to 1230 DEG C or so under furnace hot environment, continuously it is sent into blast furnace by hot air duct from blast-furnace tuyere position
Portion.
The hot air duct of blast furnace is made of internal refractory material and external steel shell, and internal refractory material has resistance to invade
The function of erosion, heat preservation.Most the inside is the heavy pipeline brick that not only high temperature resistant but also resistance to hot wind wash away, is two layers of light-weight insulating brick above
Layer, it has excellent incubation and thermal insulation function, under steel shell is aluminosilicate fiber cotton, has and is insulated and absorbs expansion function.Blast furnace
The heat 30% or so of cupola well is brought by the hot wind that hot air duct conveys, and belongs to a part of technical field of blast furnace ironmaking.Once hot
The refractory material of air piping part is fallen off, and one side refractory material falls off the hot air duct steel shell oxygen at high temperature at position
Change, generation fatigue stress lose out compression strength, and the hot air duct steel shell that can cause the position when serious is burnt and hot air duct is disconnected
Accident is split, blast furnace is caused to stop production for a long time；On the other hand the refractory material that falls off is by high-temperature hot-air band air intake vent, if fire proofed wood
Material product it is larger, it will blocking portion air-supply air port so that the air port can not heat air delivery, influence conditions of blast furnace direct motion and
Production.
Summary of the invention
The utility model will solve technical problem: provide a kind of blast furnace that can quickly repair the refractory material that falls off online
High-temperature hot-air pipeline, the repairing mould for avoiding blast furnace from stopping production for a long time.
In order to solve the above-mentioned technical problem, the utility model proposes technical solution be: one kind is for blast furnace ironmaking hot wind
The repairing mould of pipeline, the hot air duct are equipped with steel pipe walls；The repairing mould includes being put together by two panels curved plate
Hang mould, two panels curved plate is crosslinked by hinge to be hinged；The mould that hangs is removable on the suspension centre equipped with several suspension centres
Formula is connected with wirerope.
Preferably, described hang is set on mould there are four suspension centre.
When the utility model is used, according to internal refractories at hot air duct steel shell fall off place size make
Mould accordingly is being hung, mould is being hung and should be slightly bigger than refractory material and fall off the area at place.After blast furnace staying, hot air duct internal refractories
The steel shell at position of falling off is opened, and is winding is effectively cooled the position, the refractory brick of manual cleaning damage at this time uses special tool
Tool takes out the remaining refractory material to fall off in hot air duct.Then pipe will be put into after mould closure (i.e. hinge crosslinking closure) will be hung
Road domestic demand pouring position, stretching the wirerope on four suspension centres makes to hang mould opening (i.e. hinge crosslinking will open) and fix；Then will
Reinforcement welding by reinforcing bar and hangs mould firm welding on hot air duct steel shell；It can be extractd after welding on four suspension centres
Wirerope；It is poured using working lining castable, then is poured using insulating layer castable later, finally by the steel at this
Shell welding restores；The refractory material originally to fall off in this way is repaired finish online.
Preferably, the mould that hangs is additionally provided with anchoring piece for being welded to connect with the steel pipe walls.In this way, reinforcing bar and hanging mould
When welding, reinforcing bar and anchoring piece can be welded together.
It should be noted that hanging mould size should be slightly bigger than internal refractory at hot air duct steel shell when repairing hot air duct
Area at material falls back, otherwise hanging mould and bricking original in hot air duct can not be in close contact, and castable can be flowed into from gap
In hot air duct, this certainly will influence the quality of casting and the draught area of hot air duct.But if hanging mould using monoblock type,
It may result in again and be difficult to be put into hot air duct, therefore hang mould using what two panels curved plate was put together in the utility model,
And be crosslinked and be hinged by hinge, it is put into hot air duct after can thus folding, and avoid castable that from flowing from gap
Enter in hot air duct.
The utility model structure is simple, reliable operation and can repair hot wind in time (less than 18 hours) within a short period of time
The refractory material of shedding stops production for a long time so as to avoid blast furnace.The utility model is suitable for industrialized production and processing
It is at low cost, it is with good economic efficiency.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawing.
Fig. 1 is the schematic diagram of blast furnace and hot air duct.
Fig. 2 is the structural schematic diagram of the utility model embodiment.
Fig. 3 is the schematic diagram of the utility model embodiment when in use.
Appended drawing reference: hot-blast stove 1, hot-blast valve 2, hot air duct 3, refractory material fall off place 4, flow backwards damping down valve 5, refluence is stopped
Air piping 6, blast furnace 7, air outlet 8, suspension centre 9, hinge crosslinking 10, curved plate 11 hang mould 12, anchoring piece 13, working lining casting
Material 14, insulating layer castable 15, reinforcing bar 16.
Specific embodiment
Embodiment
As shown in Figure 1, the air outlet 8 of blast furnace 7 is connect by hot air duct 3 with hot-blast stove 1, the tube wall of hot air duct 3 is
Steel pipe walls are equipped at air outlet 8 in hot air duct 3 and flow backwards damping down pipeline 6, flow backwards damping down pipeline 6 and are equipped with and flow backwards damping down
Valve 5.Hot air duct 3 is equipped with hot-blast valve 2 close to the position of hot-blast stove.
The repairing mould for blast furnace ironmaking hot air duct of the present embodiment is as shown in Figures 2 and 3, including by two panels arc
What steel plate 11 was put together hangs mould 12, and two panels curved plate 11 is hinged by hinge 10；The mould that hangs is equipped with several hang
Point 9, it is removable on the suspension centre 9 to be connected with wirerope (being not shown on figure).
Preferably, the mould 12 that hangs is additionally provided with anchoring piece 13 for being welded to connect with the steel pipe walls.In this way, reinforcing bar 16
When with hanging the welding of mould 12, reinforcing bar 16 and anchoring piece 13 can be welded together.
When the present embodiment is in use, first using the temperature of instrument detection hot-blast main's steel shell, according to hot-blast main's steel shell
Temperature anomaly, confirmation hot air duct steel shell refractory material falls off place 4.It falls off according to steel shell refractory material and locates the size of 4 areas
Production hangs mould 12 accordingly, as shown in Fig. 2, it includes that four suspension centres, 9, two hinge crosslinkings 10 and two panels have centainly that this, which hangs mould 12,
Radian steel plate 11.
Blast furnace 7 by flow backwards 6 damping down of damping down pipeline after, open 3 internal refractories of hot air duct fall off place 4 steel
Shell, under the premise of the position is winding is effectively cooled, the refractory brick of manual cleaning damage, the remnants that will be fallen off using specific purpose tool
Refractory material takes out in hot air duct.The casting of heat pipeline domestic demand is put into after it will hang the closure of mould 12 (i.e. closure hinge crosslinking 10)
Position, stretching the wirerope on four suspension centres 9 makes to hang the opening of mould 12 and fix.Then reinforcing bar 16 is welded on hot air duct 3
On steel shell, and using anchoring piece 13 and hang 12 firm welding of mould.The wirerope on four suspension centres 9 can be extractd after welding；It
It is poured using working lining castable 14, then is poured using insulating layer castable 15 afterwards, finally welded the steel shell at this
Recovery is connect, the structure after reparation is as shown in Figure 3；The refractory material originally to fall off in this way is repaired finish online.
The utility model is not limited to the above embodiment, and the technical solution of above-mentioned each embodiment of the utility model is each other
New technical solution can be formed with combined crosswise, in addition all technical solutions formed using equivalent replacement, it is practical new to all fall within this
In the protection scope that type requires.
Claims (3)
1. a kind of repairing mould for blast furnace ironmaking hot air duct, the hot air duct is equipped with steel pipe walls；It is characterized by: packet
It includes and hangs mould by what two panels curved plate was put together, two panels curved plate is crosslinked by hinge to be hinged；Described hang sets on mould
There are several suspension centres, it is removable on the suspension centre to be connected with wirerope.
2. the repairing mould according to claim 1 for blast furnace ironmaking hot air duct, it is characterised in that: described to hang on mould
If there are four suspension centres.
3. the repairing mould according to claim 1 for blast furnace ironmaking hot air duct, it is characterised in that: described to hang mould also
Equipped with the anchoring piece for being welded to connect with the steel pipe walls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820667165.8U CN208414469U (en) | 2018-05-07 | 2018-05-07 | Repairing mould for blast furnace ironmaking hot air duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820667165.8U CN208414469U (en) | 2018-05-07 | 2018-05-07 | Repairing mould for blast furnace ironmaking hot air duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208414469U true CN208414469U (en) | 2019-01-22 |
Family
ID=65117002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820667165.8U Active CN208414469U (en) | 2018-05-07 | 2018-05-07 | Repairing mould for blast furnace ironmaking hot air duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208414469U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112359155A (en) * | 2020-10-30 | 2021-02-12 | 张家港宏昌钢板有限公司 | Method for repairing local lining refractory falling of blast furnace top gas ascending pipeline |
-
2018
- 2018-05-07 CN CN201820667165.8U patent/CN208414469U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112359155A (en) * | 2020-10-30 | 2021-02-12 | 张家港宏昌钢板有限公司 | Method for repairing local lining refractory falling of blast furnace top gas ascending pipeline |
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