CN107621171B - Large-scale normalizing furnace winter brickwork method - Google Patents
Large-scale normalizing furnace winter brickwork method Download PDFInfo
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- CN107621171B CN107621171B CN201610553172.0A CN201610553172A CN107621171B CN 107621171 B CN107621171 B CN 107621171B CN 201610553172 A CN201610553172 A CN 201610553172A CN 107621171 B CN107621171 B CN 107621171B
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Abstract
A kind of large size normalizing furnace winter brickwork method, it is characterised in that the following steps are included: a, setting wall-hanging heating installation, b, block the heat preservation of furnace shell hole.Large-scale normalizing furnace winter brickwork method of the invention has wall-hanging heating installation frame structure simple; it makes, is easy to use; brickwork construction quality is safe and reliable; overcome the shortcomings that traditional winter severe cold environment building method is unable to satisfy brickwork temperature requirement; the protection of heater cable closure formula; the advantages of ensure that brickwork safety, guaranteeing the duration and reduce engineering cost.
Description
Technical field
The present invention relates to a kind of normalizing furnace brickwork methods, specifically, being a kind of large-scale normalizing furnace winter brickwork method.
Background technique
Normalizing furnace is the equipment for steel plate heat treatment.Large-scale normalizing furnace furnace construction engineering, requiring height to temperature, (temperature is not low
In 5 DEG C), when encountering winter construction, often influences the duration because temperature is low or construction quality, security problems occur.
Summary of the invention
The purpose of the present invention is to propose a kind of safe and reliable large-scale normalizing furnace winter brickwork method.
To achieve the above object, the technical solution of the invention is as follows:
A kind of large size normalizing furnace winter brickwork method, normalizing furnace overall length are 250m, on the sustained height of furnace shell two sides between 2m
Away from the φ 190mm round kiln roller aperture being dispersed with for installing furnace roller, furnace shell is welded by steel plate, and inside can not hang heating
Device belongs to confined space in furnace, does not allow cabling, it is characterised in that the following steps are included:
A, wall-hanging heating installation is set, comprising the following steps:
(1) wall-hanging heating installation frame is made comprising the steps of:
It is used to place the wall built-up of heating installation according to normalizing furnace length, furnace roller pore size distribution and the big little makings several groups of heater
Formula heating installation frame, heating installation frame include the fixing seat of furnace roller hole collar extension and the heating installation bracket of furnace roller hole mouth,
Wherein: fixing seat includes square or the 1st steel plate of rectangle and the 2nd steel plate, and it is logical that four bolts are arranged in the 1st steel plate surrounding
The 1st steel pipe is welded at hole, the 1st steel plate center admittedly；The shape of 2nd steel plate, size, bolt hole are arranged with the 1st steel plate, the 2nd steel plate
A through-hole is arranged in center, makes to be inserted into the 1st steel pipe in the 2nd steel plate by the through-hole, and made in four bolt holes with bolt
Together, fixing seat is retained in fixing seat with the 1st steel pipe one end out of furnace roller hole when use for 1st steel plate and the 2nd Interal fixation
Furnace roller hole collar extension；
Heating installation bracket includes diameter 2nd steel pipe 3-5mm bigger than the 1st steel pipe, and the 2nd steel pipe one end can fitting insertion the
In 1 steel pipe, the 1st round steel one end of the 2nd steel pipe other port is welded and fixed, and keeps the 1st round steel vertical with the 2nd steel pipe, the 1st round steel
The center tack welding of the other end and the 3rd round steel keeps the 1st round steel vertical with the 3rd round steel, the both ends of the 3rd round steel respectively with the 2nd round steel one
End is welded and fixed, and keeps the 3rd round steel vertical with the 2nd steel pipe, and the other end of two the 2nd round steel is respectively welded and fixed with bar one end, makes
Bar is parallel with the 1st round steel；
(2) heating installation is placed on wall-hanging heating installation frame
Heating installation is heater, heater diameter 300mm, 400mm long, and heater is shelved on two the 2nd round steel, keeps off
Bar prevents heater from skidding off heating installation bracket in the 2nd round steel end；
B, the heat preservation of furnace shell hole is blocked
There are furnace roller hole, burner hole, radiation pore and manhole in furnace shell outer wall two sides, right to keep construction environment temperature in furnace
Hole carries out temporary plugging comprising the steps of:
(1) furnace shell side wall has band steel reinforcement, and furnace shell side wall is divided into many grid, is cut into using yellow plate paper appropriately sized
Block furnace roller hole, the burner hole, radiation pore within the scope of grid；
(2) for the manhole of furnace shell side in addition to leaving necessary construction personnel's inlet and outlet, remaining piles up envelope using manhole brick
It is stifled；
(3) stove both ends inlet seal room, exit seal room furnace are blocked using cloth door curtain, are facilitated construction personnel and are built object
Money disengaging；
(4) a thermometer is hung every 20m long in furnace, observes in-furnace temperature at any time；
(5) sequence of construction is adjusted, furnace inside holding is reinforced
Brickwork design sequence: 1. surveying setting-out, 2. side wall lay bricks, 3. make furnace roof module or set up arch mould, 4. build furnace roof
5. brick spreads bottom brick, 6. demoulding cleaning brickwork joint gap；Bottom brick will be 5. spread in practice of construction to shift to an earlier date, and first be laid with furnace bottom fibre module
And 2 layers of bottom brick, stay last surface layer brick that wouldn't be laid with, and be laid with yellow plate paper protection, furnace of then constructing again on bottom brick
Dome brick, can more preferably keep in-furnace temperature；
(6) brickwork is built using segmentation, and every 50m is one section, and primary reformer rearwards promotes after building, and will heating
Device with moving backward, before built part and retain a heater and keep furnace temperature.
Large-scale normalizing furnace winter brickwork method of the invention can also be further achieved by the following technical measures.
Method above-mentioned, wherein the thickness of the 1st steel plate and the 2nd steel plate >=6mm.
Method above-mentioned, wherein the bolt specification is >=M12 bolt.
Method above-mentioned, wherein round steel diameter >=10mm.
Method above-mentioned, wherein the heater is in every 50m long normalizing furnace apart from eight heaters of interior installation.
Method above-mentioned, wherein the yellow plate paper is refractory material outer packing.
After adopting the above technical scheme, large-scale normalizing furnace winter brickwork method of the invention has the advantage that
1, wall-hanging heating installation frame structure is simple, makes, is easy to use；
2, brickwork construction quality is safe and reliable, overcomes traditional winter severe cold environment building method and is unable to satisfy brickwork temperature
It is required that the shortcomings that；
3, heater cable closure formula is protected, and ensure that brickwork safety；
4, guarantee the duration, reduce engineering cost.
Detailed description of the invention
Fig. 1 is the normalizing furnace boiler face structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the wall-hanging heating installation structural schematic diagram of the embodiment of the present invention；
Fig. 3 is the 1st steel plate main view of the embodiment of the present invention；
Fig. 4 is the side view of Fig. 3；
Fig. 5 is the 2nd steel plate main view of the embodiment of the present invention；
Fig. 6 is the wall-hanging heating installation frame structural schematic diagram of the embodiment of the present invention；
Fig. 7 is the side view of Fig. 6；
Fig. 8 is that the wall-hanging heating installation of the embodiment of the present invention combines scheme of installation with heater；
Fig. 9 is the wall-hanging heating installation use state diagram of the embodiment of the present invention.
In figure: 1 the 1st steel pipe, 2 bolts, 3 the 1st steel plates, 4 the 2nd steel plates, 5 the 2nd steel pipes, 6 the 1st round steel, 7 the 2nd round steel, 8 gears
Bar, 9 heaters, 10 normalizing furnace center lines, 11 cable interfaces, 12 the 3rd round steel, 13 furnace roller holes, 14 wall-hanging heating installation framves.
Specific embodiment
With reference to embodiments and its attached drawing further explains the present invention.
Embodiment 1
It is the normalizing furnace boiler face structural schematic diagram of the embodiment of the present invention referring now to Fig. 1, Fig. 1.
Large-scale normalizing furnace winter brickwork method of the invention, normalizing furnace are always about 250m, on the sustained height of furnace shell two sides with
2m spacing is dispersed with the φ 190mm round kiln roller aperture for installing furnace roller, and furnace shell is welded by steel plate, and inside can not hang and take
Warmer belongs to confined space in furnace, does not allow cabling.Normalizing furnace winter brickwork method the following steps are included:
A, wall-hanging heating installation is set, comprising the following steps:
(1) wall-hanging heating installation frame is made comprising the steps of:
It is used to place the wall built-up of heating installation according to normalizing furnace length, furnace roller pore size distribution and the big little makings several groups of heater
Formula heating installation frame, heating installation frame include the fixing seat of furnace roller hole collar extension and the heating installation bracket of furnace roller hole mouth.
It is the normalizing furnace boiler face structural schematic diagram of the embodiment of the present invention referring now to Fig. 3 and Fig. 4, Fig. 1.Fig. 3 is the present invention
1st steel plate main view of embodiment, Fig. 4 are the side view of Fig. 3.
Fixing seat includes square 1st steel plate 3 and the 2nd steel plate 4, and four bolt holes, the 1st steel is arranged in the 1st steel plate surrounding
Admittedly the 1st steel pipe 1 of DN25 of long 300mm is welded in plate center；1st steel plate, 3 side length 300mm.The shape of 2nd steel plate 4, size, bolt are logical
Hole is arranged with the 1st steel plate 3, and a M12 bolt hole is arranged in the center of the 2nd steel plate 4, and through-hole spacing 140mm is made by the through-hole
It is inserted into the 1st steel pipe 1 in 2nd steel plate 4, and is fixed on the 1st steel plate 3 and the 2nd steel plate 4 with M12 bolt 2 in four bolt holes
Together, fixing seat is entered in normalizing furnace with 1 one end of the 1st steel pipe from furnace roller hole 13 when use, is retained in fixing seat outside furnace roller hole
Mouthful.The thickness of 1st steel plate 3 and the 2nd steel plate 4 is 6mm.
Fig. 6 is the wall-hanging heating installation frame structural schematic diagram of the embodiment of the present invention, and Fig. 7 is the side view of Fig. 6.
Heating installation bracket includes 2nd steel pipe 5 of the diameter than the big 3mm of the 1st steel pipe 1, and the 2nd steel pipe 5 is the DN32 of long 250mm
Steel pipe, steel pipe one end energy fitting are inserted into the 1st steel pipe 1, and 6 one end of the 1st round steel of the 2nd steel pipe other port and long 260mm are welded
Fixation is connect, keeps the 1st round steel 6 vertical with the 2nd steel pipe 5, the central point of the 3rd round steel 12 of the other end and long 200mm of the 1st round steel 6
Gu weldering, keeps the 1st round steel vertical with the 3rd round steel, the both ends of the 3rd round steel 12 are respectively welded and fixed with long 7 one end of the 2nd round steel of 410mm, make
3rd round steel 12 is vertical with the 2nd steel pipe 5, and the other end of two the 2nd round steel 7 is respectively welded and fixed with 8 one end of bar of long 50mm, makes
Bar is parallel with the 1st round steel 6；
(2) heating installation is placed on wall-hanging heating installation frame
Fig. 2 is the wall-hanging heating installation structural schematic diagram of the embodiment of the present invention.Heating installation is heater, and heater is straight
Diameter 300mm, 400mm long, heater are shelved on two the 2nd round steel 7, and bar 8 prevents heater from skidding off in 7 end of the 2nd round steel
Heating installation bracket；Round steel diameter >=the 10mm.
B, the heat preservation of furnace shell hole is blocked
There are furnace roller hole, burner hole, radiation pore and manhole in furnace shell outer wall two sides, right to keep construction environment temperature in furnace
Hole carries out temporary plugging comprising the steps of:
(1) furnace shell side wall has band steel reinforcement, and furnace shell side wall is divided into many grid, is cut into using yellow plate paper appropriately sized
Block furnace roller hole, the burner hole, radiation pore within the scope of grid；
(2) for the manhole of furnace shell side in addition to leaving necessary construction personnel's inlet and outlet, remaining piles up envelope using manhole brick
It is stifled；
(3) belong to entrance in confined space in furnace, outlet is blocked using cloth door curtain, facilitate construction personnel to pass in and out；
(4) a thermometer is hung every 20m long in furnace, observes in-furnace temperature at any time；
(5) sequence of construction is adjusted, furnace inside holding is reinforced
Brickwork design sequence: 1. surveying setting-out, 2. side wall lay bricks, 3. make furnace roof module or set up arch mould, 4. build furnace roof
5. brick spreads bottom brick, 6. demoulding cleaning brickwork joint gap；Bottom brick will be 5. spread in practice of construction to shift to an earlier date, and first be laid with furnace bottom fibre module
And 2 layers of bottom brick, stay last surface layer that wouldn't be laid with, and be laid with yellow plate paper protection, furnace roof of then constructing again on bottom brick
Brick, can more preferably keep in-furnace temperature.Fig. 8 is that the wall-hanging heating installation of the embodiment of the present invention combines installation signal with heater
Figure, Fig. 9 are the wall-hanging heating installation use state diagram of the embodiment of the present invention.
(6) brickwork is built using segmentation, and every 50m is one section, and primary reformer rearwards promotes after building, and will heating
Device with moving backward, before built part and retain a heater and keep furnace temperature.The heater is in every section of 50m length
Normalizing furnace apart from eight heaters of interior installation.The yellow plate paper is refractory material outer packing.Power supply line overhauls from each suspension column
Power supply box takes, and power supply line uses ZR-YJV-0.6/1KV 3*4 power cable, and 8 heaters need to use 300m cable altogether.Cable from
DN25 steel pipe is pierced into outside, then pierces into DN32 steel pipe, with connection jaws wiring at the top of heater, and is wrapped up with insulating tape, so
DN32 pipeline is packed into DN25 pipeline afterwards, and tenses cable in outside, is totally placed in cable in steel pipe.It is suitable in view of constructing
Sequence, 8 heaters can be installed concentratedly first in 5~6 section furnace shells of construction (50m or so), concentrate and build this several sections, with subsequent
It builds, the effect of tapetum fibrosum and refractory brick, furnace inside holding effect can gradually increase, then heater is moved back.
The present invention have substantive distinguishing features and significant technological progress, large-scale normalizing furnace winter brickwork method of the invention,
Its key technology main points: heating and heat preservation.It is wherein heated using heater, it is important to guarantee that heater can move at any time, together
When guarantee heater cable using safe.Heat preservation is mainly to the furnace roller hole of furnace shell two sides, manhole, radiation pore, burner hole
Carry out a temporary plugging.When winter severe cold environment, the shortcomings that traditional building method is unable to satisfy brickwork temperature requirement is overcome,
It can preferably guarantee the duration, save cost；Wall-hanging heating installation of the invention is used simultaneously, and the cable of heater is accomplished to seal
The protection of enclosed ensure that the safety built the road.
Above embodiments are used for illustrative purposes only, rather than limitation of the present invention, the technology people in relation to technical field
Member, without departing from the spirit and scope of the present invention, can also make various transformation or variation.Therefore, all equivalent
Technical solution also should belong to scope of the invention, should be limited by each claim.
Claims (6)
1. a kind of large size normalizing furnace winter brickwork method, normalizing furnace overall length is 250m, with 2m spacing on the sustained height of furnace shell two sides
It is dispersed with the φ 190mm round kiln roller aperture for installing furnace roller, furnace shell is welded by steel plate, and inside can not hang heater,
Belong to confined space in furnace, does not allow cabling, it is characterised in that the following steps are included:
A, wall-hanging heating installation is set, comprising the following steps:
(1) wall-hanging heating installation frame is made comprising the steps of:
It is taken according to the wall-hanging that normalizing furnace length, furnace roller pore size distribution and the big little makings several groups of heater are used to place heating installation
Heater device frame, heating installation frame include the fixing seat of furnace roller hole collar extension and the heating installation bracket of furnace roller hole mouth,
Wherein: fixing seat includes square 1st steel plate (3) and the 2nd steel plate (4), and four bolt holes are arranged in the 1st steel plate surrounding,
Admittedly the 1st steel pipe (1) is welded in 1st steel plate center；The shape of 2nd steel plate (4), size, same 1st steel plate (3) of bolt hole setting, the 2nd
A through-hole is arranged in the center of steel plate (4), makes to be inserted into the 1st steel pipe (1) in the 2nd steel plate (4) by the through-hole, and in four bolts
The 1st steel plate (3) and the 2nd steel plate (4) is set to be fixed together with bolt (2) in through-hole, fixing seat is with the 1st steel pipe (1) one when use
End enters in normalizing furnace from furnace roller hole (13), and fixing seat is made to be retained in furnace roller hole collar extension；Heating installation bracket includes diameter than the 1st
The 2nd steel pipe (5) of the big 3-5mm of steel pipe (1), the 2nd steel pipe (5) one end energy fitting are inserted into the 1st steel pipe (1), the 2nd steel pipe other end
It is welded and fixed at mouthful with the 1st round steel (6) one end, keeps the 1st round steel (6) vertical with the 2nd steel pipe (5), the other end of the 1st round steel (6)
With the center tack welding of the 3rd round steel (12), keep the 1st round steel vertical with the 3rd round steel, the both ends of the 3rd round steel (12) respectively with the 2nd round steel
(7) one end is welded and fixed, and keeps the 3rd round steel (12) vertical with the 2nd steel pipe (5), and the other end of two the 2nd round steel (7) is respectively and bar
(8) one end is welded and fixed, and keeps bar parallel with the 1st round steel (6)；
(2) heating installation is placed on wall-hanging heating installation frame
Heating installation is heater, heater diameter 300mm, 400mm long, and heater is shelved on two the 2nd round steel (7), keeps off
Bar (8) prevents heater from skidding off heating installation bracket in the 2nd round steel (7) end；
B, the heat preservation of furnace shell hole is blocked
There are furnace roller hole, burner hole, radiation pore and manhole in furnace shell outer wall two sides, to keep construction environment temperature in furnace, to hole
Carry out temporary plugging comprising the steps of:
(1) furnace shell side wall has band steel reinforcement, and furnace shell side wall is divided into many grid, is cut into appropriately sized closure using yellow plate paper
Furnace roller hole, burner hole, radiation pore within the scope of grid；
(2) for the manhole of furnace shell side in addition to leaving necessary construction personnel's inlet and outlet, remaining piles up closure using manhole brick；
(3) stove both ends inlet seal room, exit seal room furnace using cloth door curtain block, facilitate construction personnel and build goods and materials into
Out；
(4) a thermometer is hung every 20m long in furnace, observes in-furnace temperature at any time；
(5) sequence of construction is adjusted, furnace inside holding is reinforced
Brickwork design sequence: 1. surveying setting-out, 2. side wall is laid bricks, 3. makes furnace roof module or is set up arch mould, 4. builds furnace roof brick, 5.
Spread bottom brick, 6. demoulding cleaning brickwork joint gap；Bottom brick will be 5. spread in practice of construction to shift to an earlier date, and first be laid with furnace bottom fibre module and 2 layers
Bottom brick stays last surface layer that wouldn't be laid with, and yellow plate paper protection is laid on bottom brick, furnace roof brick of then constructing again, with
In-furnace temperature can more preferably be kept；
(6) brickwork using segmentation build, every 50m be one section, primary reformer build after rearwards promote, and by heater with
Move backward, before built part and retain heater and keep furnace temperature.
2. large size normalizing furnace winter brickwork method as described in claim 1, which is characterized in that the 1st steel plate (3) and the 2nd
The thickness of steel plate (4) >=6mm.
3. large size normalizing furnace winter brickwork method as described in claim 1, which is characterized in that bolt (2) specification is >=
M12 bolt.
4. large size normalizing furnace winter brickwork method as described in claim 1, which is characterized in that the round steel diameter >=10mm.
5. large size normalizing furnace winter brickwork method as described in claim 1, which is characterized in that the heater is in every 50m long
Normalizing furnace is apart from eight heaters of interior installation.
6. large size normalizing furnace winter brickwork method as described in claim 1, which is characterized in that the yellow plate paper is refractory material
Outer packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610553172.0A CN107621171B (en) | 2016-07-14 | 2016-07-14 | Large-scale normalizing furnace winter brickwork method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610553172.0A CN107621171B (en) | 2016-07-14 | 2016-07-14 | Large-scale normalizing furnace winter brickwork method |
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| CN107621171A CN107621171A (en) | 2018-01-23 |
| CN107621171B true CN107621171B (en) | 2019-04-23 |
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ID=61087174
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10232091A (en) * | 1997-02-18 | 1998-09-02 | Nkk Corp | Board pushing device for flame spray repairing of penetrated damaged part of carbonizing chamber for coke oven |
| CN102269522A (en) * | 2011-06-28 | 2011-12-07 | 南京钢铁股份有限公司 | Building process of furnace bottom of electric furnace |
| CN103822466A (en) * | 2012-11-19 | 2014-05-28 | 丹阳市江南工业炉有限公司 | Buried-type large-scale pit furnace insulation device |
| CN205241751U (en) * | 2015-12-28 | 2016-05-18 | 南阳汉冶特钢有限公司 | Novel normalizing furnace |
-
2016
- 2016-07-14 CN CN201610553172.0A patent/CN107621171B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10232091A (en) * | 1997-02-18 | 1998-09-02 | Nkk Corp | Board pushing device for flame spray repairing of penetrated damaged part of carbonizing chamber for coke oven |
| CN102269522A (en) * | 2011-06-28 | 2011-12-07 | 南京钢铁股份有限公司 | Building process of furnace bottom of electric furnace |
| CN103822466A (en) * | 2012-11-19 | 2014-05-28 | 丹阳市江南工业炉有限公司 | Buried-type large-scale pit furnace insulation device |
| CN205241751U (en) * | 2015-12-28 | 2016-05-18 | 南阳汉冶特钢有限公司 | Novel normalizing furnace |
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| CN107621171A (en) | 2018-01-23 |
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