CN106871645A - A kind of soaking furnace lid refractory material rapid constructing method - Google Patents

A kind of soaking furnace lid refractory material rapid constructing method Download PDF

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Publication number
CN106871645A
CN106871645A CN201710036686.3A CN201710036686A CN106871645A CN 106871645 A CN106871645 A CN 106871645A CN 201710036686 A CN201710036686 A CN 201710036686A CN 106871645 A CN106871645 A CN 106871645A
Authority
CN
China
Prior art keywords
bell
prefabricated
furnace lid
soaking furnace
refractory
Prior art date
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.)
Pending
Application number
CN201710036686.3A
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Chinese (zh)
Inventor
吴国荣
宋玉忠
鄂成松
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FUSHUN SPECIAL STEEL SHARES Co Ltd
Original Assignee
FUSHUN SPECIAL STEEL SHARES Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FUSHUN SPECIAL STEEL SHARES Co Ltd filed Critical FUSHUN SPECIAL STEEL SHARES Co Ltd
Priority to CN201710036686.3A priority Critical patent/CN106871645A/en
Publication of CN106871645A publication Critical patent/CN106871645A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00Casings; Linings; Walls; Roofs
    • F27D1/16Making or repairing linings increasing the durability of linings or breaking away linings
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/70Furnaces for ingots, i.e. soaking pits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00Casings; Linings; Walls; Roofs
    • F27D1/18Door frames; Doors, lids, removable covers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00Casings; Linings; Walls; Roofs
    • F27D1/16Making or repairing linings increasing the durability of linings or breaking away linings
    • F27D2001/1605Repairing linings

Abstract

The present invention discloses a kind of soaking furnace lid refractory material rapid constructing method, for the rapid construction and repairing of soaking furnace lid refractory lining.Technical scheme:(4) filled with wet inserts in the bell prefabricated section of refractory material (2) rectangular configuration, first half dimensional contraction, the gap that the first half occurs after assembly;The bell prefabricated section (2) every piece of cast when two pieces of anchored bricks are installed (5), (2) (5) anchored brick be higher by bell prefabricated section, and (3) anchored brick top (5) is hung on bell steel construction shaped steel (1) by anchoring hook;There is scaling loss and comes off one or a few in soaking furnace lid refractory lining, and bell prefabricated section is headed into upwards (2) in bottom after offline cooling, is (5) (3) fixed with anchoring hook with anchored brick, and sealing is (4) expected with wet inserts in gap.The beneficial effect of the inventive method:Can quickly integral installation construction and can quick sectional repair, greatly reduce maintenance cost;Baker fuel consumption is reduced, the turnover rate of bell is improved, the quantity of standby bell is reduced.

Description

A kind of soaking furnace lid refractory material rapid constructing method
Technical field
The present invention relates to a kind of soaking furnace lid refractory material rapid constructing method, the repairing of soaking furnace lid can be reduced Expense and time.
Background technology
The soaking pit that rough rolling mill of steel mill has more than ten is used for Heating Steel Ingots, and soaking furnace lid is due to frequently opening and moving It is dynamic, make refractory lining frequently rapid heat cycle and the vibrations appearance damage of bell, then because the characteristic of refractory material is new and old Cannot be combined closely between material, the bell flame retardant coating especially hung is thinning if there is localized delamination, cannot repair, only Just placed under repair when can occur penetrating hole when continuing to come off;And bell castable refractory liner is in use for some time Fine crack can internally occur, the refractory lining of surrounding can be all destroyed when carrying out partial dismantling using existing construction means, Cause to repair area expansion, so it is actually highly difficult to carry out local repair.
Present method for maintaining be scaling loss or the refractory material overall pulling down that comes off, it is then integrated poured with castable refractory Construction, needs the time demoulding after pouring, toasted according to the baking process of castable refractory afterwards, baking time one As be 7 days~10 days.The refractory lining of each bell needs castable 10t or so, while needing 180 pieces or so of anchored brick, anchor Gu 360, hook, repairs just up to 40,000 yuan of bell refractory lining only Master Cost every time, add operating expenses and baking is costly Up to 100,000 yuan.There is the soaking pit of 14 or so general rough rolling mill, and the life-span of each soaking furnace lid refractory lining is about 1 Year, the maintenance of annual soaking furnace lid refractory lining is at 1,400,000 yuan or so.
The content of the invention
The present invention discloses a kind of soaking furnace lid refractory material rapid constructing method, for soaking furnace lid refractory lining Rapid construction and repairing, and maintenance cost is reduced, reduce maintenance time.
Perform technical scheme:A kind of bell prefabricated section of refractory material (2) rectangular configuration is designed, first half dimensional contraction is spelled (4) filled with wet inserts in the gap that the first half occurs after dress;The bell prefabricated section installs two pieces of anchored bricks when (2) every piece is poured into a mould (5), (2) (5) anchored brick be higher by bell prefabricated section, and (3) anchored brick top (5) hang the type in bell steel construction (1) by anchoring hook On steel;Material uses light mullite pouring material, be baked to after shaping 800 DEG C it is standby.
There is scaling loss and comes off one or a few in soaking furnace lid refractory lining, and bell is headed into upwards after cooling down offline in bottom (3) (5) (2) bell prefabricated section, fixed with anchored brick with anchoring hook, and sealing is (4) expected with wet inserts in gap.
The beneficial effect of the method for the invention:Can quickly integral installation construction and can quick sectional repair, repairing Amount only accounts for 1/the tens of all repairings, greatly reduces maintenance cost;Complete to dry in a pre-installation due to bell prefabricated section It is roasting, than the time for directly shortening baking 7 days with castable refractory casting and constructing, baker fuel consumption is reduced, improve the week of bell Rate of rotation, reduces the quantity of standby bell, remarkable in economical benefits.
Brief description of the drawings
Fig. 1 is schematic diagram after soaking furnace lid construction;
Fig. 2 is the structural representation of bell refractory material prefabricated block.
Icon explanation:Bell steel construction 1, bell prefabricated section 2, anchoring hook 3, wet inserts 4, anchored brick 5.
Specific embodiment
A kind of bell prefabricated section 2 (see Fig. 1, Fig. 2) of refractory material is designed, both can quickly integral installation construction and can be with Quick local repair.As shown in figure 1, refractory material bell prefabricated section 2 uses light mullite pouring material, baking is concentrated after shaping It is standby to 800 DEG C;Bell prefabricated section 2 is rectangular configuration, and first half dimensional contraction, the gap that the first half occurs after assembly is filled out with wet Charge 4 is filled;Every piece of bell prefabricated section 2 installs two pieces of anchored bricks 5 when making cast, and anchored brick 5 is higher by bell prefabricated section 2, anchor Gu the top of brick 5 is hung on the shaped steel of bell steel construction 1 by anchoring hook 3.Because bell prefabricated section 2 is complete in a pre-installation Into baking, than directly shortening baking time 7 days with castable refractory casting and constructing, the turnover rate of bell is improved, reduce standby boiler The quantity of lid.
When bell refractory lining is constructed using bell prefabricated section 2 for the first time, bell steel construction 1 is supported certain altitude, people Member is risen bell prefabricated section 2 and is hung on the shaped steel of bell steel construction 1 with anchoring hook 3 in bottom, and every piece of stove is noted during installation Two anchored bricks 5 (as shown in Figure 2) on lid prefabricated section 2, it is necessary on a root type steel, filled out with wet after whole installations Charge 4 fills up filling irrigating sealant, and filler uses light mullite pouring material.
Baker fuel consumption is reduced, each bell can reduce about 16800m3Natural gas;Because bell refractory lining is installed Can come into operation afterwards reduces furnace drying time;The turnover rate 15% or so of bell is improved, before the quantity of the standby bell of reduction 14 stoves need standby 7 bells, and requirement is fully met now with 6.

Claims (4)

1. a kind of soaking furnace lid refractory material rapid constructing method, it is characterised in that:The soaking furnace lid is by rectangular configuration (2) component assembly is constituted bell prefabricated section;The bell prefabricated section (2) first half dimensional contraction;(2) every piece of the bell prefabricated section Two pieces of anchored bricks are installed (5) during cast, (2) (5) anchored brick be higher by bell prefabricated section, and (3) anchored brick top (5) hung by anchoring hook Hang on bell steel construction shaped steel (1).
2. a kind of soaking furnace lid refractory material rapid constructing method according to claim 1, it is characterised in that:The bell Prefabricated section (2) assembly after the first half occur gap (4) filled with wet inserts.
3. a kind of soaking furnace lid refractory material rapid constructing method according to claim 1 or claim 2, it is characterised in that:It is described Bell prefabricated section (2) material use light mullite pouring material, be baked to after shaping 800 DEG C it is standby.
4. a kind of soaking furnace lid refractory material rapid constructing method according to claim 1 or claim 2, it is characterised in that:It is described Bell prefabricated section (2) component occur scaling loss come off one or a few when, it is prefabricated that bell in bottom heads into bell after cooling upwards offline (3) (5) (2) block, fixed with anchored brick with anchoring hook, and sealing is (4) expected with wet inserts in gap.
CN201710036686.3A 2017-01-18 2017-01-18 A kind of soaking furnace lid refractory material rapid constructing method Pending CN106871645A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710036686.3A CN106871645A (en) 2017-01-18 2017-01-18 A kind of soaking furnace lid refractory material rapid constructing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710036686.3A CN106871645A (en) 2017-01-18 2017-01-18 A kind of soaking furnace lid refractory material rapid constructing method

Publications (1)

Publication Number Publication Date
CN106871645A true CN106871645A (en) 2017-06-20

Family

ID=59158741

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710036686.3A Pending CN106871645A (en) 2017-01-18 2017-01-18 A kind of soaking furnace lid refractory material rapid constructing method

Country Status (1)

Country Link
CN (1) CN106871645A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111121465A (en) * 2020-01-07 2020-05-08 山东柯信新材料有限公司 Method for preparing furnace cover of anhydrous cold electric melting corundum smelting furnace

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2742002A (en) * 1952-09-02 1956-04-17 George P Reintjes Sealing shoe for furnaces
DE1152718B (en) * 1955-10-17 1963-08-14 Oesterr Amerikan Magnesit Basic hanging ceilings with insulation for metallurgical ovens and furnaces
CN2482674Y (en) * 2001-06-25 2002-03-20 长沙冶金设计研究院 Reinforcement and brick combined refractory prefabricated section
CN203489667U (en) * 2013-09-16 2014-03-19 刘明 Top structure of communication flame path of open type annular roasting furnace
CN203501785U (en) * 2013-06-25 2014-03-26 中冶华天工程技术有限公司 Suspended precast block and one-piece casting combined furnace top construction

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2742002A (en) * 1952-09-02 1956-04-17 George P Reintjes Sealing shoe for furnaces
DE1152718B (en) * 1955-10-17 1963-08-14 Oesterr Amerikan Magnesit Basic hanging ceilings with insulation for metallurgical ovens and furnaces
CN2482674Y (en) * 2001-06-25 2002-03-20 长沙冶金设计研究院 Reinforcement and brick combined refractory prefabricated section
CN203501785U (en) * 2013-06-25 2014-03-26 中冶华天工程技术有限公司 Suspended precast block and one-piece casting combined furnace top construction
CN203489667U (en) * 2013-09-16 2014-03-19 刘明 Top structure of communication flame path of open type annular roasting furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111121465A (en) * 2020-01-07 2020-05-08 山东柯信新材料有限公司 Method for preparing furnace cover of anhydrous cold electric melting corundum smelting furnace

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