CN101760208A - Method for installing coke dry quenching slot shell - Google Patents
Method for installing coke dry quenching slot shell Download PDFInfo
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- CN101760208A CN101760208A CN200810203345A CN200810203345A CN101760208A CN 101760208 A CN101760208 A CN 101760208A CN 200810203345 A CN200810203345 A CN 200810203345A CN 200810203345 A CN200810203345 A CN 200810203345A CN 101760208 A CN101760208 A CN 101760208A
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- slot shell
- dry quenching
- coke dry
- quenching slot
- welding
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Abstract
The invention relates to a method for installing a coke dry quenching slot shell, belonging to the field of the metallurgical equipment installation. The method for installing the coke dry quenching slot shell comprises the following steps of making, assembling, hoisting, welding and installing. The method for installing the coke dry quenching slot shell is characterized in that veneers are directly installed, assembled and welded on a bottom plate, the section 2 to section 6 of the coke dry quenching slot shell are assembled on the ground, all the sections of the coke dry quenching slot shell are integrally hoisted, the coke dry quenching slot shell is rolled by using a template which is made from a steel plate with the Delta being 25-30, an annular pedestal of the coke dry quenching slot shell is accurately cut for blanking by adopting the semiautomatic circle center positioning cutting technology, a single wall plate of the dry quenching slot shell is clamped by a clamp so as to be hoisted by a balance beam hoister on the whole circle, hoisting lugs are welded on inner supporting points, the included angle of a hoisting rope is controlled, an n-shaped clamp is used for welding layer by layer, the reverse deformation is controlled, the traverse circumferential welding seams are welded symmetrically by 4 person synchronously or welded equidistantly and circumferentially by 3 person synchronously, and the reinforcing ribs are welded discontinuously or alternatively. Because the coke dry quenching slot shell are assembled, hoisted, welded and installed section by section, the precision of body of a furnace is controlled, and method for installing the coke dry quenching slot shell is easy to operate and is safe and reliable.
Description
Technical field
The present invention relates to the metallurgical equipment installing area, be specially a kind of method for installing coke dry quenching slot shell.
Background technology
Quenching is the important step in the coking process, coal is after coking chamber is smelt coke, should in time release from coking chamber, temperature was about 1000 ℃ when red Jiao released, for avoiding the coke burning, and be convenient to transportation and storage, and can not directly coke be sent to blast furnace ironmaking, red burnt temperature must be reduced to below 300 ℃.At present, many coke-oven plants and iron and steel enterprise all adopt " coke wet quenching " technology of red burnt spray cooling are carried out quenching.But " coke wet quenching " technology has significant disadvantages: the first, and red burnt sensible heat waste; Second: red anxious acute cooling increases the coke crackle, and the moisture fluctuation is bigger, and the coke quality reduces, and is unfavorable for blast furnace ironmaking production; The 3rd, the entrainment with steam that coke wet quenching produces remains in corrosive mediums such as the interior phenol of coke, cyanogen, sulfide, and object around corroding causes ambient air contamination; The 4th: the entrainment with steam that coke wet quenching produces a large amount of dust, and both contaminate environment was again a kind of waste.For solving the problem that " coke wet quenching " technology is brought, produced the dry quenching(of coke) technology, i.e. Dry Quenching Technology, its English name is Coke Dry Quenching, is called for short CDQ.Dry coke quenching is to be thermal barrier with circulated inert gas, discharges below by recirculation blower cold recycle gas being imported red burnt cooling room cooling down high-temperature coke to 250 ℃.Cycling hot conductance behind the absorption coke heat is gone into waste heat boiler and is reclaimed heat, produces steam.After recycle gas cooling, the dedusting, return cooling room through blower fan again, so red Jiao of circulation cooling.The steam that coke dry quenching boiler produces or incorporate factory's internal steam pipe net into or send to generating.Compare with coke wet quenching, dry coke quenching has tangible advantage: the first, and coke quality obviously improves, and obtains the extension economic benefit in ironmaking; The second, make full use of red burnt sensible heat, save energy obtains direct economic benefit; The 3rd, reduce emission of harmful substances, the protection environment.Dry coke quenching is a kind of energy-saving and environmental protection and the extinguishing technique that can improve coke quality, is put into national coking industry emphasis disseminate technology.National industrial policies requirement simultaneously, the above coke oven of newly-built 4.3m must the auxiliary construction dry coke quenching.The dry coke quenching engineering comprises these several parts of coke dry quenching body, boiler, deaerated feedwater station, dry coke quenching dedusting, power generation system, circulating pump room, operation room and watch-keeping cubicle, wherein the coke dry quenching groove is the main device in the dry coke quenching, and the coke dry quenching groove is made up of the air feeder of quenching slot shell, inner lining refractory and bottom.Connect charging apparatus on the coke dry quenching groove, following platoon goes out device, and the side communicates with disposable dust remover by the high temperature telescopic joint, and red-hot coke is discharged from furnace bottom after being enclosed in the stove heat exchange that realizes with N2 from furnace roof.Body of heater can be divided into the district that prestores from top to bottom, chute district and cooling zone.The quenching slot shell is a circular cell body of large-scale shell variable cross-section, and main shape is made of cylinder, cone, annular brace beam and inlet and outlet flange etc.Because Dry Quenching Technology belongs to emerging field, only there is enterprise of the man a few family of very few number in the unit of domestic this method of employing, also is in the stage of fumbling for the installation of dry coke quenching equipment, exist much not science, irrational place, the installation process complexity, the installation cost height, setting accuracy is undesirable.
Summary of the invention
In order to overcome the defective of prior art, a kind of safe, economic, quick, reliable metallurgical equipment installation method is provided, the invention discloses a kind of method for installing coke dry quenching slot shell.
The present invention reaches goal of the invention by following technical solution:
A kind of method for installing coke dry quenching slot shell, comprise making, assembling, lifting, welding and installation, it is characterized in that: be divided into 6 sections and install, the 1st section totally 2 strings take the ground roll bending, veneer directly on the base plate of installation the installation group to, the welding, assemble on ground for the 2nd～6th section, each section integral hoisting, housing rolls and adopts δ=25～30 steel plates to make template, all housing wallboard two ends adopt template pressure head technology to roll, roll and adopt model to detect in the process, guarantee wallboard termination radian; The housing annular base is taked location, semi-automatic center of circle cutting technique, clean cut blanking; Be assembled in to have drawn on the steel platform of circle, center and reticule and carry out by the housing radius, and on its circumference with the levelling of fritter steel plate; Lifting monolithic housing wallboard adopts the blue clamping of card, add the lifting of balance beam suspender, the whole circle of lifting housing welds hanger on interior point of suppon, control hoist cable angle, add a shape card during welding, force reversible deformation, the layering welding, the lateral circumferential weld seam adopts the weldering synchronously of 4 people symmetry or 3 people's circumference in equal parts to weld synchronously, interrupted, dislocation skip welding that stiffening web adopts.Quenching slot shell and air feeder, quenching slot shell and quenching channel-section steel structure are taked interspersed mounting process.
Described method for installing coke dry quenching slot shell, it is characterized in that: the reference center that furnace shell is installed, be provided in a side of the central point on the center target on the air feeder blast cap top, this center is to install the back at blast cap to return the reference point that measures above this by reference center, and this point also is a brickwork, the reference center of the detection of laying bricks.Reference point with coke dry quenching body during input accurately is provided with, the 1st layer of brick plate of quenching slot shell carries out after qualified and fixing finishing proofreaied and correct in the air feeder installation, gamma-rays on the housing detects the hole, and the stiffening web outside housing has welded back unwrapping wire, perforate, welding.
The present invention assembles, lifts, welds and install by the segmentation to housing, and the precision of control body of heater is simple to operate, safe and reliable, the operating efficiency height.
Embodiment
Below further specify the present invention by specific embodiment.
Embodiment 1
A kind of method for installing coke dry quenching slot shell, comprise lifting and welding, it is characterized in that: be divided into 6 sections and install, the 1st section totally 2 strings take the ground roll bending, veneer directly on the base plate of installation the installation group to, the welding, assemble on ground for the 2nd～6th section, each section integral hoisting, housing roll adopts δ=25～30 steel plates to make template, and all housing wallboard two ends adopt template pressure head technology to roll, roll and adopt model to detect in the process, guarantee wallboard termination radian; The housing annular base is taked location, semi-automatic center of circle cutting technique, the clean cut blanking, lifting monolithic housing wallboard adopts the blue clamping of card, adds the lifting of balance beam suspender, and the whole circle of lifting housing welds hanger on interior point of suppon, control hoist cable angle, add a shape card during welding, force reversible deformation, the layering welding, the lateral circumferential weld seam adopts the weldering synchronously of 4 people symmetry or 3 people's circumference in equal parts to weld synchronously, interrupted, dislocation skip welding that stiffening web adopts.
The reference center that furnace shell is installed is provided in a side of the central point on the center target on the air feeder blast cap top, and this center is to install the back at blast cap to return the reference point that measures above this by reference center, and this point also is a brickwork, the reference center of the detection of laying bricks.Reference point with coke dry quenching body during input accurately is provided with, the 1st layer of brick plate of quenching slot shell carries out after qualified and fixing finishing proofreaied and correct in the air feeder installation, gamma-rays on the housing detects the hole, and the stiffening web outside housing has welded back unwrapping wire, perforate, welding.
Claims (2)
1. method for installing coke dry quenching slot shell, comprise making, assembling, lifting, welding and installation, it is characterized in that: be divided into 6 sections and install, the 1st section totally 2 strings take the ground roll bending, veneer directly on the base plate of installation the installation group to, the welding, assemble on ground for the 2nd～6th section, each section integral hoisting, housing rolls and adopts δ=25～30 steel plates to make template, all housing wallboard two ends adopt template pressure head technology to roll, roll and adopt model to detect in the process, guarantee wallboard termination radian; The housing annular base is taked the location cutting of the semi-automatic center of circle, clean cut blanking; Be assembled in to have drawn on the steel platform of circle, center and reticule and carry out by the housing radius, and on its circumference with the levelling of fritter steel plate; Lifting monolithic housing wallboard adopts the blue clamping of card, add the lifting of balance beam suspender, the whole circle of lifting housing welds hanger on interior point of suppon, control hoist cable angle adds a shape card during welding, force reversible deformation, the layering welding, the lateral circumferential weld seam adopts the synchronous weldering of 4 people symmetry or 3 people's circumference in equal parts to weld synchronously, interrupted, dislocation skip welding that stiffening web adopts, and quenching slot shell and air feeder, quenching slot shell and quenching channel-section steel structure are taked interspersed mounting process.
2. method for installing coke dry quenching slot shell as claimed in claim 1, it is characterized in that: the reference center that furnace shell is installed, be provided in a side of the central point on the center target on the air feeder blast cap top, this central point is to install the back at blast cap to return the reference point that measures above this by reference center, this point is simultaneously as brickwork, the reference center that lays bricks and detect, reference point with coke dry quenching body during input accurately is provided with, the 1st layer of brick plate of quenching slot shell carries out after qualified and fixing finishing proofreaied and correct in the air feeder installation, gamma-rays on the housing detects the hole, and the stiffening web outside housing has welded the back unwrapping wire, perforate, welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810203345A CN101760208A (en) | 2008-11-25 | 2008-11-25 | Method for installing coke dry quenching slot shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810203345A CN101760208A (en) | 2008-11-25 | 2008-11-25 | Method for installing coke dry quenching slot shell |
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| Publication Number | Publication Date |
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| CN101760208A true CN101760208A (en) | 2010-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN200810203345A Pending CN101760208A (en) | 2008-11-25 | 2008-11-25 | Method for installing coke dry quenching slot shell |
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| CN (1) | CN101760208A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501067A (en) * | 2011-11-07 | 2012-06-20 | 中国一冶集团有限公司 | Method for splicing and installing coke dry quenching furnace shells |
| CN104759856A (en) * | 2015-04-22 | 2015-07-08 | 中国一冶集团有限公司 | Manufacturing and installing method for upper cone on dry quenching furnace shell |
| CN109231007A (en) * | 2018-10-28 | 2019-01-18 | 中国十九冶集团有限公司南京分公司 | A kind of electric furnace ontology handling, mounting process |
-
2008
- 2008-11-25 CN CN200810203345A patent/CN101760208A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501067A (en) * | 2011-11-07 | 2012-06-20 | 中国一冶集团有限公司 | Method for splicing and installing coke dry quenching furnace shells |
| CN104759856A (en) * | 2015-04-22 | 2015-07-08 | 中国一冶集团有限公司 | Manufacturing and installing method for upper cone on dry quenching furnace shell |
| CN109231007A (en) * | 2018-10-28 | 2019-01-18 | 中国十九冶集团有限公司南京分公司 | A kind of electric furnace ontology handling, mounting process |
| CN109231007B (en) * | 2018-10-28 | 2020-03-27 | 中国十九冶集团有限公司南京分公司 | Electric furnace body hoisting and mounting process |
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Application publication date: 20100630 |