CN103673621A - Construction method for spherical furnace top of industrial furnace - Google Patents
Construction method for spherical furnace top of industrial furnace Download PDFInfo
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- CN103673621A CN103673621A CN201310677920.2A CN201310677920A CN103673621A CN 103673621 A CN103673621 A CN 103673621A CN 201310677920 A CN201310677920 A CN 201310677920A CN 103673621 A CN103673621 A CN 103673621A
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Abstract
The invention discloses a construction method for a spherical furnace top of an industrial furnace. Firstly, a steel furnace shell is mounted, the elevation and the like of steel supporting plates at the arch springing positions of a globe-roof are rechecked, a vertical control line is arranged from the center of the furnace bottom to the center of the furnace top in a drawn mode, a supporting frame is erected in a furnace body, and a round top plate is arranged in the center of the top; multiple vertical arc plates are then manufactured and are fixed on the round top plate and the supporting frame, and the elevation and the radius of each layers of refractory bricks are marked on the corresponding vertical arc plates; multiple horizontal arc plates are manufactured; the refractory bricks at the arch springing positions are constructed first, the refractory bricks are constructed upwards in sequence, the vertical radian and the elevation of the refractory bricks are controlled by using the vertical arc plates, and the horizontal radius of the refractory bricks is controlled by using the horizontal arc plates; one heat preservation brick layer is constructed after one certain layer of the refractory bricks are constructed, and the construction is carried out in the way until the construction of all the refractory brick layers and the construction of all the heat preservation brick layers are completed; a steel cover plate of the furnace top is mounted in a hanging mode to seal the steel furnace shell. The construction method for the spherical furnace top of the industrial furnace has the advantages of being economical in used material, simple in working procedure, low in cost and the like, and can ensure construction quality more easily.
Description
Technical field
The invention belongs to industrial furnace building construction field, relate in particular to a kind of building construction method of curved surface furnace roof.
Background technology
Fluidized bed furnace is in metallurgical engineering, sulphur iron, aphalerite powder to be carried out to the capital equipment of component separation.Body of heater consists of firing chamber and siege, and firing chamber contacts the position of seething reaction with air, and siege Main Function is from bottom blast cap high-pressure blowing-in.
Build by laying bricks or stones on ball top is the Focal point and difficult point during whole fluidized bed furnace is built by laying bricks or stones, is also that current industrial furnace is built the most difficult brick-building art in field by laying bricks or stones simultaneously, and its masonry quality has determined the service life of body of heater.Construction technology is in the past before building ball top by laying bricks or stones, makes a native loose tool plate with design outer surface radian, absolute altitude and consistent size, is used as ball and pushes up the bed die of building by laying bricks or stones, and then build dome by laying bricks or stones at native loose tool plate higher slice.Making native loose tool plate is first to lay template on stove inner support frame, then in template, piles up chiltern cohesive soil, and compacting shaping balling-up top shape is finally received light with cement sand plaster levelling.
Soil tire form technology can guarantee, but in making and removing native tire template procedure, have following deficiency on masonry quality:
(1) because native loose tool plate back cover, building operation by laying bricks or stones all completes on native loose tool plate top, could capping after the top cover of steel furnace shell needs ball top to build by laying bricks or stones all to complete, increased operation handing-over, extended the service time of vertical transport hanging device, for guaranteeing that building the period by laying bricks or stones is not soaked with rain, and also needs to set up interim rain-proof shelter on furnace roof.
(2) need to use the materials such as a large amount of soil, plank, cement to make native loose tool, after removing, building waste is many, and in stove, cleaning work amount is very large simultaneously.
(3) indeformable for guaranteeing the native loose tool plate supporting, the formwork support body in stove will be reinforced support body with a large amount of tube materials, and materials'use amount is large, and intensive steel pipe support body is unfavorable for the cleaning of native loose tool plate material.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, the construction method of the spherical furnace roof of industrial furnace that provide that a kind of materials are economized, operation is simple, cost is low, layout optimization, construction quality can guarantee.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is the construction method of the spherical furnace roof of a kind of industrial furnace, comprises the following steps:
(1) first at the design attitude of this spherical furnace roof, prefabricated steel furnace shell, open-topped ring-shaped structure centered by described steel furnace shell are installed;
(2), after steel furnace shell installs, check and be positioned at ball top and build absolute altitude, flatness and the internal diameter size of arch springing place steel supporting plate by laying bricks or stones, and carry out the calibration (out of specifications position will be adjusted) of corresponding size data;
(3) at the furnace bottom center of this industrial furnace, draw establish a vertical center control line to furnace roof center, set up all round victory (steel pipe) bracing frame in body of heater, the top center of building by laying bricks or stones on ball top arranges a circular top plate;
(4) according to the innermost layer sphere radian of furnace roof, make the vertical radian plate of many Pin, and vertical radian plate is evenly fixed on described circular top plate and bracing frame along furnace roof circumferencial direction, on each vertical radian plate mark good shot top build by laying bricks or stones in absolute altitude and the radius of every layer of refractory brick;
(5) according to ball top, build by laying bricks or stones in the design level radian of every layer of refractory brick make the horizontal radian plate of polylith;
(6) first build the ground floor refractory brick at ball crown placement of foot place by laying bricks or stones, then up carry out successively ball and push up building by laying bricks or stones of all the other each layer of refractory brick, in building process, utilize described vertical radian plate and on vertical radian and the absolute altitude of every layer of refractory brick of marking of control of doing, utilize described horizontal radian plate to control the horizontal radius (every layer of refractory brick radius is consistent) of every layer of refractory brick; When the refractory brick of certain one deck is all built by laying bricks or stones when complete, knock in wedge shape refractory brick and form the domain, and on this layer of refractory brick, carry out insulating brick-layer and build by laying bricks or stones, start to carry out building by laying bricks or stones of last layer ball top refractory brick simultaneously, form of construction work advances according to this, until the whole constructions of each fire brick layer that build by laying bricks or stones on ball top and insulating brick-layer are complete;
(7) finally lift the steel deck-plate sealing steel furnace shell of furnace roof, remove the construction members such as bracing frame, vertical radian plate, complete construction.
In the construction method of the spherical furnace roof of above-mentioned industrial furnace, preferred, described steel furnace shell is to be spliced up and down by multilayer taper box hat plate, and the tapering of box hat plate increases from lower to upper gradually.
In the construction method of the spherical furnace roof of above-mentioned industrial furnace, preferred, described vertical center control line is crossed the center of circle of described circular top plate, and described vertical center control line stretches and forms with an iron wire.
In the construction method of the spherical furnace roof of above-mentioned industrial furnace, preferred, described vertical radian plate and horizontal radian plate all adopt wooden structures, and the quantity of vertical radian plate is controlled at 8～16 Pin.
In the construction method of the spherical furnace roof of above-mentioned industrial furnace, preferred, in the building process of refractory brick, the mortar joint of building by laying bricks or stones is controlled in 2mm; And the amount of building by laying bricks or stones of each class is controlled in four layers of brick.
In the construction method of the spherical furnace roof of above-mentioned industrial furnace, preferably, built by laying bricks or stones after every layer of refractory brick, with Geoplane inspection and adjust the levelness of every layer of refractory brick, with laser range finder inspection and adjust the radian of every layer of refractory brick, at control line place, center, measure image data.
Compared with prior art, the invention has the advantages that:
1. the present invention does not need to adopt the construction materials such as native loose tool plate, wooden template, but the dome building method that directly adopts space three-dimensional to control, this construction method is compared with traditional native loose tool plate building method, not only quality can be guaranteed, and can greatly reduce construction auxiliary material use, reduce construction cost, alleviate the cleaning work amount of the interior construction material of stove in work progress;
2. construction procedure of the present invention is simple, compares traditional construction technology and has greatly reduced operation handing-over, has reduced construction working amount, has shortened the duration;
3. the work progress of the present invention awning of no longer separately setting up defences, the layout advantages of simple of whole construction system, structure optimization, be conducive to improve construction benefit.
Accompanying drawing explanation
Fig. 1 is the Construction State schematic diagram (cutaway view) in the spherical furnace roof work progress of industrial furnace in the embodiment of the present invention.
Fig. 2 is the top view (1/4 part is only shown) in the spherical furnace roof work progress of industrial furnace in the embodiment of the present invention.
Marginal data:
1. arch springing is built on ball top by laying bricks or stones; 2. steel furnace shell; 3. insulating brick; 4. refractory brick; 5. vertical radian plate; 6. circular top plate; 7. bracing frame; 8. center control line; 9. horizontal radian plate; 10. ball top steel deck-plate; 11. steel supporting plates.
The specific embodiment
Below in conjunction with Figure of description, the invention will be further described with concrete preferred embodiment, but protection domain not thereby limiting the invention.
embodiment:
A construction method for the spherical furnace roof of industrial furnace of the present invention as shown in Figure 1 and Figure 2, comprises the following steps:
(1) first at the design attitude of this spherical furnace roof, prefabricated steel furnace shell 2, open-topped ring-shaped structure centered by steel furnace shell 2 are installed; As shown in Figure 1, the steel furnace shell 2 of the present embodiment is to be spliced up and down by two multilayer taper box hat plates, and the tapering of box hat plate increases from lower to upper gradually;
(2), after steel furnace shell 2 installs, check and be positioned at ball top and build arch springing 1(brick by laying bricks or stones) locate absolute altitude, flatness and the internal diameter size of steel supporting plate 11, and carry out the calibration (out of specifications position will be adjusted) of corresponding size data;
(3) at the furnace bottom center of this industrial furnace, draw establish a vertical center control line 8 to furnace roof center, set up all round victory steel tube frame 7 simultaneously in body of heater, the top center of building by laying bricks or stones on ball top arranges a circular top plate 6(steel plate); This vertical center control line 8 is crossed the center of circle of circular top plate, and control line 8 use one 14# iron wires in vertical center stretch and form;
(4) according to the innermost layer sphere radian of furnace roof, make the vertical radian plate 5 of 12 Pin, and the vertical radian plate 5 of this 12 Pin is evenly fixed on circular top plate 6 and bracing frame 7 (referring to Fig. 2) along furnace roof circumferencial direction, on each vertical radian plate 5 mark good shot top build by laying bricks or stones in absolute altitude and the radius of every layer of refractory brick 4;
(5) according to ball top, build by laying bricks or stones in the design level radian of every layer of refractory brick 4 make the horizontal radian plate 9 of polylith;
(6) first on ball top, build arch springing 1 position by laying bricks or stones and build ground floor refractory brick 4 by laying bricks or stones, then up carry out successively ball and push up building by laying bricks or stones of all the other each layer of refractory brick, in building process, utilize vertical radian plate 5 and on vertical radian and the absolute altitude of every layer of refractory brick of marking of control 4 of doing, utilize horizontal radian plate 9 to control the horizontal radius (every layer of refractory brick radius is consistent) of every layer of refractory brick 4; When the refractory brick of certain one deck is all built by laying bricks or stones when complete, knock in wedge shape refractory brick and form the domain, and on this layer of refractory brick, carry out building by laying bricks or stones of insulating brick 3, start to carry out building by laying bricks or stones of last layer ball top refractory brick simultaneously, form of construction work advances according to this, until the whole constructions of each fire brick layer that build by laying bricks or stones on ball top and insulating brick-layer are complete; In the building process of refractory brick 4, the mortar joint of building by laying bricks or stones is controlled in 2mm; And the amount of building by laying bricks or stones of each class is controlled in four layers of brick.Built by laying bricks or stones after every layer of refractory brick, masonry quality is checked, with Geoplane inspection and adjust the levelness of every layer of refractory brick 4, with laser range finder inspection and adjust the radian of every layer of refractory brick, at center control line, image data is measured at 8 places, should be complete in adjustment on duty to out of specifications position;
(7) finally lift the ball top steel deck-plate 10 sealing steel furnace shells 2 of furnace roof, remove the construction members such as bracing frame 7, vertical radian plate 5, complete construction.
Claims (6)
1. a construction method for the spherical furnace roof of industrial furnace, comprises the following steps:
(1) first at the design attitude of this spherical furnace roof, prefabricated steel furnace shell, open-topped ring-shaped structure centered by described steel furnace shell are installed;
(2), after steel furnace shell installs, check and be positioned at ball top and build absolute altitude, flatness and the internal diameter size of arch springing place steel supporting plate by laying bricks or stones, and carry out the calibration of corresponding size data;
(3) at the furnace bottom center of this industrial furnace, draw establish a vertical center control line to furnace roof center, set up all round victory bracing frame in body of heater, the top center of building by laying bricks or stones on ball top arranges a circular top plate;
(4) according to the innermost layer sphere radian of furnace roof, make the vertical radian plate of many Pin, and vertical radian plate is evenly fixed on described circular top plate and bracing frame along furnace roof circumferencial direction, on each vertical radian plate mark good shot top build by laying bricks or stones in absolute altitude and the radius of every layer of refractory brick;
(5) according to ball top, build by laying bricks or stones in the design level radian of every layer of refractory brick make the horizontal radian plate of polylith;
(6) first build the ground floor refractory brick at ball crown placement of foot place by laying bricks or stones, then up carry out successively ball and push up building by laying bricks or stones of all the other each layer of refractory brick, in building process, utilize described vertical radian plate and on vertical radian and the absolute altitude of every layer of refractory brick of marking of control of doing, utilize described horizontal radian plate to control the horizontal radius of every layer of refractory brick; When the refractory brick of certain one deck is all built by laying bricks or stones when complete, knock in wedge shape refractory brick and form the domain, and on this layer of refractory brick, carry out insulating brick-layer and build by laying bricks or stones, start to carry out building by laying bricks or stones of last layer ball top refractory brick simultaneously, form of construction work advances according to this, until the whole constructions of each fire brick layer that build by laying bricks or stones on ball top and insulating brick-layer are complete;
(7) finally lift the steel deck-plate sealing steel furnace shell of furnace roof, remove bracing frame, complete construction.
2. the construction method of the spherical furnace roof of industrial furnace according to claim 1, is characterized in that: described steel furnace shell is to be spliced up and down by multilayer taper box hat plate, and the tapering of box hat plate increases from lower to upper gradually.
3. the construction method of the spherical furnace roof of industrial furnace according to claim 1, is characterized in that: described vertical center control line is crossed the center of circle of described circular top plate, and described vertical center control line stretches and forms with an iron wire.
4. the construction method of the spherical furnace roof of industrial furnace according to claim 1, is characterized in that: described vertical radian plate and horizontal radian plate all adopt wooden structures, and the quantity of vertical radian plate is controlled at 8～16 Pin.
5. the construction method of the spherical furnace roof of industrial furnace according to claim 1, is characterized in that: in the building process of refractory brick, the mortar joint of building by laying bricks or stones is controlled in 2mm; And the amount of building by laying bricks or stones of each class is controlled in four layers of brick.
6. the construction method of the spherical furnace roof of industrial furnace according to claim 1, it is characterized in that: built by laying bricks or stones after every layer of refractory brick, with Geoplane inspection and adjust the levelness of every layer of refractory brick, with laser range finder inspection and adjust the radian of every layer of refractory brick, at control line place, center, measure image data.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061786A (en) * | 2014-07-08 | 2014-09-24 | 七冶建设有限责任公司 | Method for building spherical crown type furnace top by laying bricks |
| CN104748549A (en) * | 2015-04-03 | 2015-07-01 | 沈阳鑫博工业技术股份有限公司 | Top cover structure of industrial kiln |
| CN105825026A (en) * | 2016-03-30 | 2016-08-03 | 中国冶集团有限公司 | Coke oven straight-section flue arch vaulting construction method based on BIM (building information modeling) technology |
| CN107388831A (en) * | 2017-08-31 | 2017-11-24 | 中国冶集团有限公司 | For building the control device and construction method of air heating furnace roof arch masonry by laying bricks or stones |
| CN108731480A (en) * | 2018-08-23 | 2018-11-02 | 洛阳宏达炉业有限公司 | A kind of furnace wall structure of lift electric kiln |
| CN109269303A (en) * | 2018-08-08 | 2019-01-25 | 中国二十冶集团有限公司 | Industrial furnace pipeline upper semi-circle annular vault inside lining building method |
| CN110470143A (en) * | 2019-07-22 | 2019-11-19 | 鞍钢建设集团有限公司 | A method of using standard refractory brick masonry stove top dome |
| CN110579108A (en) * | 2019-09-02 | 2019-12-17 | 新兴铸管股份有限公司 | Method for building supporting roof of steelmaking mixer |
| CN112595120A (en) * | 2020-12-07 | 2021-04-02 | 中国十九冶集团有限公司 | Control device and method for hot blast stove vault masonry structure |
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| CN202747794U (en) * | 2012-08-17 | 2013-02-20 | 常州综研加热炉有限公司 | Furnace top structure of heating furnace |
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| GB2032075B (en) * | 1978-10-19 | 1982-05-12 | Libbey Owens Ford Co | Method of repairing furnace roofs during heat-up |
| JPH10318682A (en) * | 1997-05-19 | 1998-12-04 | Toshiba Ceramics Co Ltd | Industrial furnace and construction for heat insulating layer of industrial furnace |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061786A (en) * | 2014-07-08 | 2014-09-24 | 七冶建设有限责任公司 | Method for building spherical crown type furnace top by laying bricks |
| CN104061786B (en) * | 2014-07-08 | 2015-12-30 | 七冶建设有限责任公司 | A kind of ball crown type furnace roof building method of fluidizing reactor |
| CN104748549A (en) * | 2015-04-03 | 2015-07-01 | 沈阳鑫博工业技术股份有限公司 | Top cover structure of industrial kiln |
| CN105825026A (en) * | 2016-03-30 | 2016-08-03 | 中国冶集团有限公司 | Coke oven straight-section flue arch vaulting construction method based on BIM (building information modeling) technology |
| CN105825026B (en) * | 2016-03-30 | 2019-04-23 | 中国一冶集团有限公司 | Coke oven straight section flue arch stuffing construction method based on BIM technology |
| CN107388831A (en) * | 2017-08-31 | 2017-11-24 | 中国冶集团有限公司 | For building the control device and construction method of air heating furnace roof arch masonry by laying bricks or stones |
| CN109269303A (en) * | 2018-08-08 | 2019-01-25 | 中国二十冶集团有限公司 | Industrial furnace pipeline upper semi-circle annular vault inside lining building method |
| CN108731480A (en) * | 2018-08-23 | 2018-11-02 | 洛阳宏达炉业有限公司 | A kind of furnace wall structure of lift electric kiln |
| CN110470143A (en) * | 2019-07-22 | 2019-11-19 | 鞍钢建设集团有限公司 | A method of using standard refractory brick masonry stove top dome |
| CN110470143B (en) * | 2019-07-22 | 2020-10-20 | 鞍钢建设集团有限公司 | Method for building kiln ball top by adopting standard refractory bricks |
| CN110579108A (en) * | 2019-09-02 | 2019-12-17 | 新兴铸管股份有限公司 | Method for building supporting roof of steelmaking mixer |
| CN112595120A (en) * | 2020-12-07 | 2021-04-02 | 中国十九冶集团有限公司 | Control device and method for hot blast stove vault masonry structure |
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