CN106225483B - A kind of hot excavation filling mend method in Flash Smelting Furnace open hearth top - Google Patents

A kind of hot excavation filling mend method in Flash Smelting Furnace open hearth top Download PDF

Info

Publication number
CN106225483B
CN106225483B CN201610577709.7A CN201610577709A CN106225483B CN 106225483 B CN106225483 B CN 106225483B CN 201610577709 A CN201610577709 A CN 201610577709A CN 106225483 B CN106225483 B CN 106225483B
Authority
CN
China
Prior art keywords
brick
box
hot
smelting furnace
flash smelting
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.)
Active
Application number
CN201610577709.7A
Other languages
Chinese (zh)
Other versions
CN106225483A (en
Inventor
李晓波
李龙平
来有寿
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.)
Jinchuan Guangxi nonferrous Pioneer Metals Corporation
Original Assignee
Jinchuan Group 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 Jinchuan Group Co Ltd filed Critical Jinchuan Group Co Ltd
Priority to CN201610577709.7A priority Critical patent/CN106225483B/en
Publication of CN106225483A publication Critical patent/CN106225483A/en
Application granted granted Critical
Publication of CN106225483B publication Critical patent/CN106225483B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F27D1/1621Making linings by using shaped elements, e.g. bricks
    • 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
    • F27D2001/161Hot repair

Abstract

The present invention proposes a kind of hot excavation filling mend method in Flash Smelting Furnace open hearth top, by the way of replacing traditional reparation of being poured into a mould or laid bricks again after formwork by using the method that preprepared hanger brick box repairs flash furnace roof.Processing time foreshortens to 6 8h by 40h, service life after reparation can extend to 12 months or more, 15 30 days service life than original castable refractory at least extend 10 times or more, simultaneously, digging construction method using the present invention repairs Flash Smelting Furnace open hearth top, can need not cool down to burner hearth in hot lower completion, time is short, and it is simple to reproduce process.In addition, the making of brick box and building by laying bricks or stones for refractory brick are all previously-completed in the place far from high temperature, the construction time is saved, it is also safer.

Description

A kind of hot excavation filling mend method in Flash Smelting Furnace open hearth top
Technical field
The invention belongs to smelting field of nonferrous metal, are related to a kind of hot excavation filling mend method in Flash Smelting Furnace open hearth top.
Background technology
Flash Smelting Furnace is to make full use of the huge active surface of fine grinding material, the smelting process of strengthening smelting reaction process.It will Metal sulfide concentrate fine powder and flux spray into together with air in red-hot flash burner hearth through dry, the good heat transfer of formation, Mass transfer condition makes chemical reaction be carried out with high speed.It can be used for the matte smelting of the sulphide ores such as copper, nickel and make copper to blow Refining.Flash furnace reaction tower and sedimentation basin open hearth top are generally using the structure of hanging magnesium chromium matter refractory brick, since the structure is sudden and violent for a long time Dew under high temperature environment, directly withstands up to washing away, corroding for 1350 DEG C or more of sulfur dioxide flue gas.Therefore Flash Smelting Furnace is in life During production, top hanging brick is gradually thinning to fall off, and furnace roof is caused to alter fire, production disruption.
At present there are two types of Flash Smelting Furnace furnace roof traditional treatment methods, first, furnace roof, which is altered fiery position, handles brickwork joint on neat, edge Original hanger brick lower height position is welded template, builds new hanger brick by laying bricks or stones in template, then hanger brick stainless steel is hung brick Hook block hangs over furnace roof and hangs on brick frame.Second is that template is welded along original hanger brick lower height position, using unsetting in template Refractory material casting is repaired.Both methods is required for being welded template, in the process must be down to negative pressure in stove and temperature Very low, processing time is long, and working environment is severe, makes a big impact to Flash Smelting Furnace production.
Invention content
In order to solve above-mentioned deficiency in the prior art, the purpose of the present invention is a kind of hot diggings in Flash Smelting Furnace open hearth top to repair Compound method.
To achieve the above object, the technical solution adopted in the present invention is:A kind of hot excavation filling mend in Flash Smelting Furnace open hearth top Method includes the following steps:
(a)Measure the furnace roof area for needing to repair;
(b)The area repaired as needed makes brick box, and brick box open topped, bottom and side wall closing, side wall upper part are reserved Brick box hanging hole, brick box depth are not less than the height of furnace roof refractory brick, and the exterior surface area of brick box cross section is relative to will repair Area reduce so that side wall is corresponding with the side wall not to damage between furnace roof refractory brick the installation gap for reserving at least 5mm;
(c)It lays bricks, refractory brick is built in brick box, and placement PVC expansion plates are required according to laying fireproof bricks;
(d)Blowing out and by hearth vacuum control be -50pa or less;
(e)The damage hanger brick that position need to be repaired is removed, the brick stubble after damaged hanger brick removing of making uniform;
(f)The brick box for puzzling refractory brick, which is hung in furnace roof, need to repair position, adjust position, make the height of brick and original in brick box Have that top hanging brick is concordant, and brick box is fixed on pylon by hanging hole and brick box hanging hook;
(g)The hanger brick in brick box is fixed on pylon with brick body hanging hook, brick body suspender member;
(h)After gap between the original hanger brick of brick box and periphery is tamped with asbestos cord, fill real with magnesium mud;
(i)Heating is resumed production.
The brick box hanging hook processes crotch in the cold state.
The step(h)Magnesium mud used is mixed before recording with the brine of saturation, five to six points of mixing time Clock.
The brick box hanging hole sets one in each side wall.
The brick box is made of the steel plate of thick 8mm.
The beneficial effects of the invention are as follows:The method substitution of flash furnace roof is repaired by using preprepared hanger brick box By the way of traditional reparation of being poured into a mould or laid bricks again after formwork, processing time foreshortens to 6-8h by 40h, after reparation Service life can extend to 12 months or more, and the 15-30 days service life than original castable refractory at least extend 10 Times or more, meanwhile, digging construction method using the present invention repairs Flash Smelting Furnace open hearth top, can not be needed in hot lower completion Cool down to burner hearth, the time is short, and it is simple to reproduce process.In addition, the making of brick box and building by laying bricks or stones all on the ground far from high temperature for refractory brick Side is previously-completed, and saves the construction time, also safer.
Description of the drawings
Fig. 1 be the present invention relates to Flash Smelting Furnace open hearth top structural schematic diagram;
Fig. 2 is the prior art using the top construction signal that unshape refractory cast repairing method is formed after molding Figure;
Fig. 3 is the prior art using the top construction schematic diagram for building and hanging the formation of refractory brick repairing method after molding by laying bricks or stones;
When Fig. 4 is method repairing furnace roof using the present invention, it is empty to remove the repairing formed after damaged hanger brick, brick stubble of making uniform Between schematic diagram;
When Fig. 5 is method repairing furnace roof using the present invention, makes and complete the brick box section signal after hanging brick masonry Figure;
When Fig. 6 is method using the present invention repairing furnace roof, brick box position and hang on brick frame after schematic diagram;
When Fig. 7 is method using the present invention repairing furnace roof, complete to the schematic diagram after the hanging hung in brick box;
Wherein:1- hanger bricks, 2- pylons, 3- brick bodies hanging hook, 4- brick bodies suspender member, the unsetting castables of 5-, 6- are not Amorphous refractory cast template suspender member, 7- breakage hanger bricks remove after brick stubble, lay bricks template suspender member, 9- of 8- lay bricks mould Plate, 10- brick boxes hanging hook, 11- bricks box, 12- brick boxes hanging hole, 13- steel plates, 14- unshape refractories cast template, 15- Anchoring is grabbed.
Specific implementation mode
Technical scheme of the present invention is further elaborated with below by way of examples and with reference to the accompanying drawings.
As shown in Figures 4 to 7, that the present invention provides a kind of work progress is simple, usage time is long, is used for Flash Smelting Furnace open hearth Push up the construction restorative procedure of hanger brick digging.The construction method includes the following steps:
(1)The furnace roof area for needing to repair is measured, 5mm is reduced on length and width direction according to the size measured, as pre- The installation gap stayed with open brick box 11 at the top of 13 processing and fabricating bottom of steel plate and side-closed, and is opened on brick box side wall Four brick box hanging holes 12;
(2)It builds hanger brick 1 by laying bricks or stones in brick box 11, and PVC expansion plates is placed according to brick body expansion requirements;
(3)Blowing out and by hearth vacuum control be -50pa or less;
(4)The damage hanger brick that position need to be repaired is removed, the brick stubble 7 after damaged hanger brick removing of making uniform;
(5)The brick box 11 for puzzling brick is hung in furnace roof with jack need to repair position, adjust position, make the height of brick in brick box It is concordant with original top hanging brick, and brick box 11 is fixed on pylon by four brick box hanging holes 12 and brick box hanging hook 10 On 2;
(6)Hanger brick in brick box 11 is fixed on pylon 2 with brick body hanging hook 3;
(7)After gap between the original hanger brick of brick box 11 and periphery 1 is tamped with asbestos cord, fill real with magnesium mud;
(8)Heating is resumed production.
In the above embodiment, it is roasting fire is not had to ensure that the intensity of brick box hanging hook 10 is not damaged, when making its crotch It is red curved again, and crotch should be processed in the cold state.
In order to ensure magnesium mud can Fast Sintering and it is sintered have enough intensity, it is desirable that record the halogen of preceding saturation Water is stirred mixing, mixing time five to six minutes to magnesium mud.
Brick box, which hangs in furnace roof, needs repairing area, after positioning and hanging and be fixed on pylon, must hang brick body in brick box Hook 3 is fixed on furnace roof pylon 2, and after preventing brick cassette bottom portion steel plate scaling loss, hanger brick falls off in brick box.

Claims (5)

1. a kind of hot excavation filling mend method in Flash Smelting Furnace open hearth top, includes the following steps:
(a)Measure the furnace roof area for needing to repair;
(b)The area repaired as needed makes brick box(11), brick box(11)Open topped, bottom and side wall closing, side wall upper part Reserved brick box hanging hole(12), brick box(11)Depth is not less than the height of furnace roof refractory brick, brick box(11)The outer surface of cross section Area is reduced relative to the area to be repaired so that side wall is corresponding with the side wall not to be damaged between furnace roof refractory brick and reserve at least The installation gap of 5mm;
(c)It lays bricks, in brick box(11)Interior block refractory brick, and require placement PVC expansion plates according to laying fireproof bricks;
(d)Blowing out and by hearth vacuum control be -50pa or less;
(e)The damage hanger brick that position need to be repaired is removed, the brick stubble after damaged hanger brick removing of making uniform(7);
(f)The brick box of refractory brick will be puzzled(11)Position need to be repaired by hanging in furnace roof, adjust position, make the height of brick and original in brick box Have that top hanging brick is concordant, and passes through hanging hole and brick box hanging hook(10)By brick box(11)It is fixed on pylon(2)On;
(g)With brick body hanging hook(3), brick body suspender member(4)By brick box(11)Interior hanger brick is fixed on pylon(2)On;
(h)By brick box(11)After gap between the original hanger brick in periphery is tamped with asbestos cord, fill real with magnesium mud;
(i)Heating is resumed production.
2. the hot excavation filling mend method in Flash Smelting Furnace open hearth according to claim 1 top, it is characterized in that:The brick box hanging hook (10)Crotch is processed in the cold state.
3. the hot excavation filling mend method in Flash Smelting Furnace open hearth according to claim 1 top, it is characterized in that:Step(h)Magnesium used Mud is mixed before recording with the brine of saturation, mixing time five to six minutes.
4. the hot excavation filling mend method in Flash Smelting Furnace open hearth according to claim 1 top, it is characterized in that:The brick box hanging hole (12)One is set in each side wall.
5. the hot excavation filling mend method in Flash Smelting Furnace open hearth according to claim 1 top, it is characterized in that:The brick box(11)By The steel plate of thick 8mm is made.
CN201610577709.7A 2016-07-21 2016-07-21 A kind of hot excavation filling mend method in Flash Smelting Furnace open hearth top Active CN106225483B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610577709.7A CN106225483B (en) 2016-07-21 2016-07-21 A kind of hot excavation filling mend method in Flash Smelting Furnace open hearth top

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610577709.7A CN106225483B (en) 2016-07-21 2016-07-21 A kind of hot excavation filling mend method in Flash Smelting Furnace open hearth top

Publications (2)

Publication Number Publication Date
CN106225483A CN106225483A (en) 2016-12-14
CN106225483B true CN106225483B (en) 2018-08-10

Family

ID=57532010

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610577709.7A Active CN106225483B (en) 2016-07-21 2016-07-21 A kind of hot excavation filling mend method in Flash Smelting Furnace open hearth top

Country Status (1)

Country Link
CN (1) CN106225483B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110345772A (en) * 2019-06-06 2019-10-18 国家电投集团黄河上游水电开发有限责任公司 A kind of high-temperature flue is quickly met an urgent need method for repairing and mending
CN110779335B (en) * 2019-10-26 2021-08-13 上海二十冶建设有限公司 Integrated mounting method for prefabricated furnace top of rotary hearth furnace
CN110806106A (en) * 2019-10-29 2020-02-18 首钢京唐钢铁联合有限责任公司 Method and structure for repairing collapse of refractory material at top of heating furnace

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005132908A (en) * 2003-10-29 2005-05-26 Mitsubishi Chemicals Corp Heat insulation unit for hot repair of coke oven
WO2006092867A1 (en) * 2005-02-28 2006-09-08 The Kansai Coke And Chemicals Co., Ltd. Repair apparatus for coke oven
CN101957139A (en) * 2010-10-18 2011-01-26 哈尔滨东安汽车动力股份有限公司 Furnace lining repairing technology
JP4659777B2 (en) * 2007-03-13 2011-03-30 新日鉄エンジニアリング株式会社 Construction method using fireproof insulation brick for hearth
CN102564135A (en) * 2012-02-13 2012-07-11 中国十九冶集团有限公司 Construction method for patching of refractory materials of furnace top of heating furnace

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005132908A (en) * 2003-10-29 2005-05-26 Mitsubishi Chemicals Corp Heat insulation unit for hot repair of coke oven
WO2006092867A1 (en) * 2005-02-28 2006-09-08 The Kansai Coke And Chemicals Co., Ltd. Repair apparatus for coke oven
JP4659777B2 (en) * 2007-03-13 2011-03-30 新日鉄エンジニアリング株式会社 Construction method using fireproof insulation brick for hearth
CN101957139A (en) * 2010-10-18 2011-01-26 哈尔滨东安汽车动力股份有限公司 Furnace lining repairing technology
CN102564135A (en) * 2012-02-13 2012-07-11 中国十九冶集团有限公司 Construction method for patching of refractory materials of furnace top of heating furnace

Also Published As

Publication number Publication date
CN106225483A (en) 2016-12-14

Similar Documents

Publication Publication Date Title
CN106225483B (en) A kind of hot excavation filling mend method in Flash Smelting Furnace open hearth top
CN110540842B (en) Furnace body repairing method for recycling coke oven after overall shutdown
CN101921887B (en) Maintenance method of blast furnace liner
CN205014832U (en) Electromagnetic stirring formula aluminum mixing vessel
CN107779556A (en) A kind of RH refining furnace vacuum chambers base channel restorative procedure
CN206919675U (en) A kind of special shaped brick and bridge structure for being used to build furnace cupola gap bridge by laying bricks or stones
CN203754747U (en) Equipment for rapidly restoring fall of refractory bricks of premixer of hot air pipeline
CN103224800B (en) Coke oven door integral pouring process
TWI622569B (en) Shell mold sintering method and device
CN106435073B (en) A kind of blast furnace lining monolithic casting construction method for substituting spray paint and refractory brick
CN104019666A (en) Immediate repairing method for intermediate frequency furnace body crucible
CN206094934U (en) Adiabatic deposit room of steelmaking electric furnace
CN204718409U (en) A kind of can the anode furnace of hot replacing redox mouth brick
CN109084589A (en) A kind of mineral hot furnace dirt-excluding groove new construction and construction technology
CN107215876A (en) Utilize the method for intermediate frequency furnace smelting commercial silicon
CN207247906U (en) A kind of Metal Melting system
CN207585329U (en) A kind of secondary metal smelting furnace
JP2013129863A (en) Tuyere structure in refining furnace and method for cooling tuyere brick in copper refining furnace
CN207600178U (en) A kind of smelting furnace
CN106091695A (en) A kind of electric zinc furnace top construction
CN109974459B (en) Method for repairing furnace eye by using electrode paste
CN207850037U (en) Smoke deflector in a kind of New Roller Kiln
CN104964564B (en) The method of the hot replacing of anode furnace oxidoreduction mouth brick
CN207407693U (en) A kind of bath smelting furnace top furnace wall structure
CN205077081U (en) Novel "bosh of blast furnace hearth cooling wall links up structure

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20191028

Address after: 538002 Qisha Industrial Zone, Qisha Town, Gangkou District, Fangchenggang City, Guangxi Zhuang Autonomous Region (Jinchuan Industrial Park)

Patentee after: Jinchuan Guangxi nonferrous Pioneer Metals Corporation

Address before: 737103 No. 98, Jinchuan Road, Jinchang, Gansu

Patentee before: Jinchuan Group Co., Ltd.