CN104061786B - A kind of ball crown type furnace roof building method of fluidizing reactor - Google Patents
A kind of ball crown type furnace roof building method of fluidizing reactor Download PDFInfo
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- CN104061786B CN104061786B CN201410322117.1A CN201410322117A CN104061786B CN 104061786 B CN104061786 B CN 104061786B CN 201410322117 A CN201410322117 A CN 201410322117A CN 104061786 B CN104061786 B CN 104061786B
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Abstract
The invention discloses a kind of ball crown type furnace roof building method, comprise the steps: scaffold building in (1) burner hearth; (2) skew block corrects and builds by laying bricks or stones; (3) installing ball crown type arch tire: first carry out the making of arch tire, is that localization criteria carries out arch tire and installs with skew block; Arch tire makes and comprises the following steps: a, arch tire calculating loft; B, arch tire make place construction; C, arch tire make; D, arch tire are pre-assembled, refine; E, installation location " ring beam " make; (4) furnace roof brick masonry (5) removes furnace roof tire, settlement observation analysis, finally builds by laying bricks or stones at furnace roof clay insulating brick, removes scaffold in burner hearth.The present invention has and can effectively control furnace roof sedimentation, and construction simple and fast, good integrity, builds the feature that precision is high by laying bricks or stones.
Description
Technical field
The invention belongs to the brick-building art of field of metallurgy, specifically relate to a kind of ball crown type furnace roof building method.
Background technology
Fluidization fluidizing reactor is the main Thermal Equipment that the roasting of copper zinc is smelted, and along with the fast development of international and domestic metallurgy, building materials, chemical industry, the industry such as coloured, designs large volume, efficient, energy-saving and environmental protection type fluidizing reactor become new development trend.Along with the further lifting of smelting technique, the fast development of nonferrous industry brings new opportunities and challenges to furnace construction engineering.Particularly fluidizing reactor ball crown type furnace roof design span is large, and it is high to build precision by laying bricks or stones.In prior art, traditional construction technique is long in time limit, cost large, build low precision by laying bricks or stones, body of heater is short for service life, and furnace roof sedimentation is bigger than normal, and the circumferential weld between the refractory brick of top is pulled open, after going into operation there is SO2 Leakage Gas in furnace roof, gives the harm that production and surrounding environment are brought.
Summary of the invention
The object of the invention is to overcome above-mentioned shortcoming and provide one effectively can control furnace roof sedimentation, and construction simple and fast, good integrity, builds the ball crown type furnace roof building method that precision is high by laying bricks or stones.
A kind of ball crown type furnace roof building method of the present invention, comprises the steps:
(1) scaffold building in burner hearth: according to the design feature of furnace shell, set up into full hall scaffold along furnace shell;
(2) skew block corrects and builds by laying bricks or stones: furnace roof skew block should puzzle before mounting arch tire, skew block is the benchmark of key brick, also be the localization criteria of arch tire, check the ovality of arch springing position furnace shell with roaster body of heater center, expanding reach radius before building by laying bricks or stones, spread appropriate mud on the brick surface puzzled when building by laying bricks or stones to build by laying bricks or stones, and deviation is adjusted;
(3) installing ball crown type arch tire: first carry out the making of arch tire, is that localization criteria carries out arch tire and installs with skew block; Arch tire makes and comprises the following steps:
A, arch tire calculating loft: arch tire divides six rings to make, each ring at least encircles tyre shoe by a slice and forms, and every sheet arch tyre shoe is made up of bow member sheet and lath, and bow member sheet size makes, every ring arch tyre shoe and lath one packet size make, the size assembling of every ring arch tyre shoe; Setting-out is carried out on the ground in arch tire fabricating yard, amplifies sample, determine bow member sheet, lath radian, determine ring beam position and processing dimension by design size 1:1;
B, arch tire make place construction: adopt rammed earth, paving one deck porous mechanism common brick, and surface cement mortar is levelling;
C, arch tire make: make bow member sheet and lath by corresponding radian, and assemble arching tyre shoe, and the arch tyre shoe made should install position by it and compile ring number;
D, arch tire are pre-assembled, refine: after spherical arch tire parts have made 1/4, in arch tire fabricating yard pre-installation on the ground, check that arch tire makes precision, are formed and formally install arch tire parameter;
E, location " ring beam " is installed makes: take skew block as localization criteria, based on the parameter that pre-installation provides, first determine vault center, 1 road ring beam of the 6th ring in place and arch tyre shoe, arch tire installs height should improve 18 ~ 25mm than design size; Again with the ring beam that the steel scaffold tubes in place of full hall scaffold in stove surrounds, ring beam position provides per pass ring beam parameter to install by pre-installation, then on ring beam, put arch tyre shoe group, reinforce full hall scaffold and ring beam, bow member tire group in place, lath between the adjacent arch tyre shoe of patch, supports and pads reverse timber wedge carry out adjustment and encircle tire between arch tire, and between support, full hall scaffold forms entirety in connection and stove in length and breadth;
(4) furnace roof brick masonry: the number order that furnace roof brick masonry is built by laying bricks or stones in advance according to furnace roof brick is carried out, on arch tire, ring number mark is made with the spacing of 4 ~ 5 rings before building by laying bricks or stones, the every ring of vault divides two sections of wet blocks of flowing water symmetry, be close to each other, but that does not close door is no more than 3 rings, each ring vault closes tweel block should be uniformly distributed in furnace roof, and the width closing tweel block is not less than 7/8 of former brick;
(5) remove furnace roof tire, settlement observation analysis: arch tire is removed after naturally solid 48 hours at brickwork joint mud, in case remove arch tire too early, not solid mud is extruded from brickwork joint, cause furnace roof sedimentation bigger than normal; The dismounting that vault supports evenly is carried out from outer shroud in chimney arch each position; Datum mark, observation station arrange, remove arch tire time, furnace roof is observed with the sedimentation of instrument to furnace roof, arch tire torn open after within 24 hours, to sedimentation proceed observation, furnace roof sedimentation is no more than 10mm; Finally build by laying bricks or stones at furnace roof clay insulating brick, remove scaffold in burner hearth.
Above-mentioned ball crown type furnace roof building method, wherein: before described step (1), carry out furnace shell inspection and unwrapping wire.
Above-mentioned ball crown type furnace roof building method, wherein: in described step (1), full hall scaffold is equilateral octagon.
Above-mentioned ball crown type furnace roof building method, wherein: after described step (1) completes, carries out furnace roof rain-proof shelter and sets up: set up scaffold in furnace roof periphery, cover the rainproof tent of one deck around scaffold, and fixing; Horizontal cross bar set up by the peripheral scaffold of furnace roof and full hall scaffold, and cross bar, to be formed centrally radial setting up in stove, then covers rainproof tent, and fixing.
Above-mentioned ball crown type furnace roof building method, wherein: in described step (2), should check after skew block finishes building, within ensureing skew block radius of the radian error 5mm, within surface smoothness error 3mm, within absolute altitude error 5mm.
Above-mentioned ball crown type furnace roof building method, wherein: the step e in described step (3), after arch tyre shoe group is in place, with center, ball crown type top for the center of circle, cambered surface and the surface smoothness of spherical arch tire is checked with elongated radian model, the position exceeding error placed under repair and adjusts, making whole spherical arch tire surface long arc degree model check table surface evenness be no more than 5mm.
Above-mentioned ball crown type furnace roof building method, wherein: in described step (4), before building vault by laying bricks or stones, expands and meets filling refractory fibre place every block brick to jump a queue timber wedge at the bottom of skew block, prevents furnace roof brick masonry from tilting not having neck brick front abutment brick.
Above-mentioned ball crown type furnace roof building method, wherein: in described step (4), when building vault by laying bricks or stones, the dilatation joint alumina silicate fiber felt at furnace shell gusset place is clogged, in order to avoid mortar and foreign material are fallen into; Each section of body of wall is built high-alumina brick by laying bricks or stones and is stayed in a circumferential direction and establish dilatation joint, inserts strawboard when building by laying bricks or stones at circumferencial direction every 5 ~ 6 pieces of bricks, and replace mud, adhesive tape seal suitable for reading, prevents mortar and foreign material from falling into.
Above-mentioned ball crown type furnace roof building method, wherein: in described step (5), carries out observation to the sedimentation of furnace roof and adopts spirit level to divide carry out at ten two.
The present invention is compared with prior art, there is obvious beneficial effect, from above scheme, carrying out scaffold building in burner hearth, when furnace roof rain-proof shelter is set up, skew block corrects and the step such as to build by laying bricks or stones, arch tire can be carried out make simultaneously, body of heater construction rationally interts over time and space, increases operation rate.Carry out parallel-cross operation; Multiple operation interts mutually, is closely connected, thus reach reduce costs, the reduction of erection time, the object of ensuring the quality of products.Arch tire calculating loft: arch tire divides six rings to make, each ring at least encircles tyre shoe by a slice and forms, and every sheet arch tyre shoe is made up of bow member sheet and lath, and bow member sheet size makes, and every ring arch tyre shoe and lath one packet size make, the size assembling of every ring arch tyre shoe; Setting-out is carried out on the ground in arch tire fabricating yard, amplifies sample, determine bow member sheet, lath radian, determine ring beam position and processing dimension by design size 1:1.By calculating and setting-out, take bow member sheet size to make, every ring arch tyre shoe lath one packet size makes, and the size assembling of every ring arch tyre shoe, simplifies manufacture craft.Take the method for the accurate rear mounting arch tire in place of ring beam, simple and fast.Install location " ring beam " to make: take skew block as localization criteria, based on the parameter that pre-installation provides, first determine vault center, 1 road ring beam of the 6th ring in place and arch tyre shoe, arch tire installs height should improve 18 ~ 25mm than design size; Again with the ring beam that the steel scaffold tubes in place of full hall scaffold in stove surrounds, ring beam position provides per pass ring beam parameter to install by pre-installation, then on ring beam, put arch tyre shoe group, reinforce full hall scaffold and ring beam, bow member tire group in place, lath between the adjacent arch tyre shoe of patch, supports and pads reverse timber wedge carry out adjustment and encircle tire between arch tire, and between support, full hall scaffold forms entirety in connection and stove in length and breadth.Utilize full hall scaffold in stove to reinforce supporting arch tire, make arch tire and full hall scaffold form entirety, globality, good rigidity, effectively control furnace roof sedimentation.In a word, the present invention has and can effectively control furnace roof sedimentation, and construction simple and fast, good integrity, builds the feature that precision is high by laying bricks or stones.
Below by way of detailed description of the invention, further illustrate beneficial effect of the present invention.
Accompanying drawing explanation
Fig. 1 is ball crown type furnace roof brick-building art flow chart.
Detailed description of the invention
embodiment 1
A kind of ball crown type furnace roof building method of the present invention, comprises the steps:
(1) scaffold building in burner hearth: first carry out furnace shell inspection and unwrapping wire, according to the design feature of furnace shell, sets up into equilateral octagon full hall scaffold along furnace shell; Burner hearth expanding reach progressively increases vertical rod, sets up into bracket shape;
(2) furnace roof rain-proof shelter is set up: set up scaffold in furnace roof periphery, covers the rainproof tent of one deck around scaffold, and fixing; Horizontal cross bar set up by the peripheral scaffold of furnace roof and full hall scaffold, and cross bar, to be formed centrally radial setting up in stove, then covers rainproof tent, and fixing;
(3) skew block corrects and builds by laying bricks or stones: furnace roof skew block should puzzle before mounting arch tire, skew block is the benchmark of key brick, also be the localization criteria of arch tire, check the ovality of arch springing position furnace shell with roaster body of heater center, expanding reach radius before building by laying bricks or stones, spread appropriate mud on the brick surface puzzled when building by laying bricks or stones to build by laying bricks or stones, should check after skew block finishes building, ensure skew block radius of the radian error 0mm, surface smoothness error 0mm, absolute altitude error 0mm;
(4) installing ball crown type arch tire: first carry out the making of arch tire, is that localization criteria carries out arch tire and installs with skew block; Arch tire makes and comprises the following steps:
A, arch tire calculating loft: arch tire divides six rings to make, each ring at least encircles tyre shoe by a slice and forms, and every sheet arch tyre shoe is made up of bow member sheet and lath, and bow member sheet size makes, every ring arch tyre shoe and lath one packet size make, the size assembling of every ring arch tyre shoe; Setting-out is carried out on the ground in arch tire fabricating yard, amplifies sample, determine bow member sheet, lath radian, determine ring beam position and processing dimension by design size 1:1;
B, arch tire make place construction: adopt rammed earth, paving one deck porous mechanism common brick, and surface cement mortar is levelling;
C, arch tire make: make bow member sheet and lath by corresponding radian, and assemble arching tyre shoe, and the arch tyre shoe made should install position by it and compile ring number;
D, arch tire are pre-assembled, refine: after spherical arch tire parts have made 1/4, in arch tire fabricating yard pre-installation on the ground, check that arch tire makes precision, are formed and formally install arch tire parameter;
E, location " ring beam " is installed makes: take skew block as localization criteria, based on the parameter that pre-installation provides, first determine vault center, 1 road ring beam of the 6th ring in place and arch tyre shoe, arch tire installs height should improve 20mm than design size; Again with the ring beam that the 15 road steel scaffold tubes in place of full hall scaffold in stove surround, ring beam position provides per pass ring beam parameter to install by pre-installation, then on ring beam, put arch tyre shoe group, reinforce full hall scaffold and ring beam, bow member tire group in place, lath between the adjacent arch tyre shoe of patch, supports and pads reverse timber wedge carry out adjustment and encircle tire between arch tire, and between support, full hall scaffold forms entirety in connection and stove in length and breadth;
After arch tyre shoe group is in place, with center, ball crown type top for the center of circle, check cambered surface and the surface smoothness of spherical arch tire with elongated radian model, the position exceeding error is placed under repair and adjusts, make whole spherical arch tire surface long arc degree model check table surface evenness be no more than 5mm;
(5) furnace roof brick masonry: before building vault by laying bricks or stones, expands and meets filling refractory fibre place every block brick to jump a queue timber wedge at the bottom of skew block, prevents furnace roof brick masonry from tilting not having neck brick front abutment brick; The number order that furnace roof brick masonry is built by laying bricks or stones in advance according to furnace roof brick is carried out, on arch tire, ring number mark is made with the spacing of 5 rings before building by laying bricks or stones, the every ring of vault divides two sections of wet blocks of flowing water symmetry, be close to each other, but what do not close door is 2 rings, each ring vault closes tweel block should be uniformly distributed in furnace roof, and the width closing tweel block equals former brick;
When building vault by laying bricks or stones, the dilatation joint alumina silicate fiber felt at furnace shell gusset place is clogged, in order to avoid mortar and foreign material are fallen into; Each section of body of wall is built high-alumina brick by laying bricks or stones and is stayed in a circumferential direction and establish dilatation joint, inserts strawboard when building by laying bricks or stones at circumferencial direction every 5 pieces of bricks, and replace mud, adhesive tape seal suitable for reading, prevents mortar and foreign material from falling into;
(6) remove furnace roof tire, settlement observation analysis: arch tire is removed after naturally solid 48 hours at brickwork joint mud, in case remove arch tire too early, not solid mud is extruded from brickwork joint, cause furnace roof sedimentation bigger than normal; The dismounting that vault supports evenly is carried out from outer shroud in chimney arch each position; Datum mark, observation station arrange, remove arch tire time, furnace roof divides observe the sedimentation of furnace roof at ten two with spirit level, arch tire torn open after within 24 hours, to sedimentation proceed observation, furnace roof sedimentation is no more than 10mm; Finally build by laying bricks or stones at furnace roof clay insulating brick, remove scaffold in burner hearth.
embodiment 2
A kind of ball crown type furnace roof building method of the present invention, comprises the steps:
(1) scaffold building in burner hearth: first carry out furnace shell inspection and unwrapping wire, according to the design feature of furnace shell, sets up into equilateral octagon full hall scaffold along furnace shell; Burner hearth expanding reach progressively increases vertical rod, sets up into bracket shape;
(2) furnace roof rain-proof shelter is set up: set up scaffold in furnace roof periphery, covers the rainproof tent of one deck around scaffold, and fixing; Horizontal cross bar set up by the peripheral scaffold of furnace roof and full hall scaffold, and cross bar, to be formed centrally radial setting up in stove, then covers rainproof tent, and fixing;
(3) skew block corrects and builds by laying bricks or stones: furnace roof skew block should puzzle before mounting arch tire, skew block is the benchmark of key brick, also be the localization criteria of arch tire, check the ovality of arch springing position furnace shell before building by laying bricks or stones with roaster body of heater center, expanding reach radius, spread appropriate mud on the brick surface puzzled when building by laying bricks or stones and build by laying bricks or stones, should check after skew block finishes building, ensure that skew block radius of the radian error is-5mm, surface smoothness-3mm, absolute altitude error-5mm, and deviation is adjusted;
(4) installing ball crown type arch tire: first carry out the making of arch tire, is that localization criteria carries out arch tire and installs with skew block; Arch tire makes and comprises the following steps:
A, arch tire calculating loft: arch tire divides six rings to make, each ring at least encircles tyre shoe by a slice and forms, and every sheet arch tyre shoe is made up of bow member sheet and lath, and bow member sheet size makes, every ring arch tyre shoe and lath one packet size make, the size assembling of every ring arch tyre shoe; Setting-out is carried out on the ground in arch tire fabricating yard, amplifies sample, determine bow member sheet, lath radian, determine ring beam position and processing dimension by design size 1:1;
B, arch tire make place construction: adopt rammed earth, paving one deck porous mechanism common brick, and surface cement mortar is levelling;
C, arch tire make: make bow member sheet and lath by corresponding radian, and assemble arching tyre shoe, and the arch tyre shoe made should install position by it and compile ring number;
D, arch tire are pre-assembled, refine: after spherical arch tire parts have made 1/4, in arch tire fabricating yard pre-installation on the ground, check that arch tire makes precision, are formed and formally install arch tire parameter;
E, location " ring beam " is installed makes: take skew block as localization criteria, based on the parameter that pre-installation provides, first determine vault center, 1 road ring beam of the 6th ring in place and arch tyre shoe, arch tire installs height should improve 18mm than design size; Again with the ring beam that the 15 road steel scaffold tubes in place of full hall scaffold in stove surround, ring beam position provides per pass ring beam parameter to install by pre-installation, then on ring beam, put arch tyre shoe group, reinforce full hall scaffold and ring beam, bow member tire group in place, lath between the adjacent arch tyre shoe of patch, supports and pads reverse timber wedge carry out adjustment and encircle tire between arch tire, and between support, full hall scaffold forms entirety in connection and stove in length and breadth;
After arch tyre shoe group is in place, with center, ball crown type top for the center of circle, check cambered surface and the surface smoothness of spherical arch tire with elongated radian model, the position exceeding error is placed under repair and adjusts, make whole spherical arch tire surface long arc degree model check table surface evenness be no more than 5mm;
(5) furnace roof brick masonry: before building vault by laying bricks or stones, expands and meets filling refractory fibre place every block brick to jump a queue timber wedge at the bottom of skew block, prevents furnace roof brick masonry from tilting not having neck brick front abutment brick; The number order that furnace roof brick masonry is built by laying bricks or stones in advance according to furnace roof brick is carried out, on arch tire, ring number mark is made with the spacing of 4 rings before building by laying bricks or stones, the every ring of vault divides two sections of wet blocks of flowing water symmetry, be close to each other, but that does not close door has 3 rings, each ring vault closes tweel block should be uniformly distributed in furnace roof, and the width closing tweel block is 7/8 of former brick;
When building vault by laying bricks or stones, the dilatation joint alumina silicate fiber felt at furnace shell gusset place is clogged, in order to avoid mortar and foreign material are fallen into; Each section of body of wall is built high-alumina brick by laying bricks or stones and is stayed in a circumferential direction and establish dilatation joint, inserts strawboard when building by laying bricks or stones at circumferencial direction every 5 pieces of bricks, and replace mud, adhesive tape seal suitable for reading, prevents mortar and foreign material from falling into;
(6) remove furnace roof tire, settlement observation analysis: arch tire is removed after naturally solid 48 hours at brickwork joint mud, in case remove arch tire too early, not solid mud is extruded from brickwork joint, cause furnace roof sedimentation bigger than normal; The dismounting that vault supports evenly is carried out from outer shroud in chimney arch each position; Datum mark, observation station arrange, remove arch tire time, furnace roof divides observe the sedimentation of furnace roof at ten two with spirit level, arch tire torn open after within 24 hours, to sedimentation proceed observation, furnace roof sedimentation is no more than 10mm; Finally build by laying bricks or stones at furnace roof clay insulating brick, remove scaffold in burner hearth.
embodiment 3
A kind of ball crown type furnace roof building method of the present invention, comprises the steps:
(1) scaffold building in burner hearth: first carry out furnace shell inspection and unwrapping wire, according to the design feature of furnace shell, sets up into equilateral octagon full hall scaffold along furnace shell; Burner hearth expanding reach progressively increases vertical rod, sets up into bracket shape;
(2) furnace roof rain-proof shelter is set up: set up scaffold in furnace roof periphery, covers the rainproof tent of one deck around scaffold, and fixing; Horizontal cross bar set up by the peripheral scaffold of furnace roof and full hall scaffold, and cross bar, to be formed centrally radial setting up in stove, then covers rainproof tent, and fixing;
(3) skew block corrects and builds by laying bricks or stones: furnace roof skew block should puzzle before mounting arch tire, skew block is the benchmark of key brick, also be the localization criteria of arch tire, check the ovality of arch springing position furnace shell before building by laying bricks or stones with roaster body of heater center, expanding reach radius, spread appropriate mud on the brick surface puzzled when building by laying bricks or stones and build by laying bricks or stones, should check after skew block finishes building, ensure skew block radius of the radian error 5mm, surface smoothness error 3mm, absolute altitude error 5mm, and deviation is adjusted;
(4) installing ball crown type arch tire: first carry out the making of arch tire, is that localization criteria carries out arch tire and installs with skew block; Arch tire makes and comprises the following steps:
A, arch tire calculating loft: arch tire divides six rings to make, each ring at least encircles tyre shoe by a slice and forms, and every sheet arch tyre shoe is made up of bow member sheet and lath, and bow member sheet size makes, every ring arch tyre shoe and lath one packet size make, the size assembling of every ring arch tyre shoe; Setting-out is carried out on the ground in arch tire fabricating yard, amplifies sample, determine bow member sheet, lath radian, determine ring beam position and processing dimension by design size 1:1;
B, arch tire make place construction: adopt rammed earth, paving one deck porous mechanism common brick, and surface cement mortar is levelling;
C, arch tire make: make bow member sheet and lath by corresponding radian, and assemble arching tyre shoe, and the arch tyre shoe made should install position by it and compile ring number;
D, arch tire are pre-assembled, refine: after spherical arch tire parts have made 1/4, in arch tire fabricating yard pre-installation on the ground, check that arch tire makes precision, are formed and formally install arch tire parameter;
E, location " ring beam " is installed makes: take skew block as localization criteria, based on the parameter that pre-installation provides, first determine vault center, 1 road ring beam of the 6th ring in place and arch tyre shoe, arch tire installs height should improve 25mm than design size; Again with the ring beam that the 15 road steel scaffold tubes in place of full hall scaffold in stove surround, ring beam position provides per pass ring beam parameter to install by pre-installation, then on ring beam, put arch tyre shoe group, reinforce full hall scaffold and ring beam, bow member tire group in place, lath between the adjacent arch tyre shoe of patch, supports and pads reverse timber wedge carry out adjustment and encircle tire between arch tire, and between support, full hall scaffold forms entirety in connection and stove in length and breadth;
After arch tyre shoe group is in place, with center, ball crown type top for the center of circle, check cambered surface and the surface smoothness of spherical arch tire with elongated radian model, the position exceeding error is placed under repair and adjusts, make whole spherical arch tire surface long arc degree model check table surface evenness be no more than 5mm;
(5) furnace roof brick masonry: before building vault by laying bricks or stones, expands and meets filling refractory fibre place every block brick to jump a queue timber wedge at the bottom of skew block, prevents furnace roof brick masonry from tilting not having neck brick front abutment brick; The number order that furnace roof brick masonry is built by laying bricks or stones in advance according to furnace roof brick is carried out, on arch tire, ring number mark is made with the spacing of 5 rings before building by laying bricks or stones, the every ring of vault divides two sections of wet blocks of flowing water symmetry, be close to each other, but what do not close door is 3 rings, each ring vault closes tweel block should be uniformly distributed in furnace roof, and the width closing tweel block is 7/8 of former brick;
When building vault by laying bricks or stones, the dilatation joint alumina silicate fiber felt at furnace shell gusset place is clogged, in order to avoid mortar and foreign material are fallen into; Each section of body of wall is built high-alumina brick by laying bricks or stones and is stayed in a circumferential direction and establish dilatation joint, inserts strawboard when building by laying bricks or stones at circumferencial direction every 6 pieces of bricks, and replace mud, adhesive tape seal suitable for reading, prevents mortar and foreign material from falling into;
(6) remove furnace roof tire, settlement observation analysis: arch tire is removed after naturally solid 48 hours at brickwork joint mud, in case remove arch tire too early, not solid mud is extruded from brickwork joint, cause furnace roof sedimentation bigger than normal; The dismounting that vault supports evenly is carried out from outer shroud in chimney arch each position; Datum mark, observation station arrange, remove arch tire time, furnace roof divides observe the sedimentation of furnace roof at ten two with spirit level, arch tire torn open after within 24 hours, to sedimentation proceed observation, furnace roof sedimentation is no more than 10mm; Finally build by laying bricks or stones at furnace roof clay insulating brick, remove scaffold in burner hearth.
Employing the inventive method is constructed, and all achieves comparatively significant effect, see that fluidization fluidizing reactor furnace roof construction economy efficiency comparative shows from aspect contrasts such as furnace roof plate square bar, cost, personnel's inputs.
In a word; by the application of the inventive method, improve operating efficiency, construction simple and fast; good integrity; problems such as ensure that body of heater builds precision by laying bricks or stones, effectively control furnace roof sedimentation, solve that traditional construction technique is long in time limit, cost is large, body of heater service life is short; avoid and because furnace roof sedimentation is bigger than normal, circumferential weld between furnace roof refractory brick is pulled open; after going into operation there is SO2 Leakage Gas in furnace roof, and the harm of bringing to production and surrounding environment, serves positive role to the protection of plant area's surrounding environment.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, anyly do not depart from technical solution of the present invention content, the any simple modification done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (9)
1. a ball crown type furnace roof building method for fluidizing reactor, comprises the steps:
(1) scaffold building in burner hearth: according to the design feature of furnace shell, set up into full hall scaffold along furnace shell;
(2) skew block corrects and builds by laying bricks or stones: furnace roof skew block should puzzle before mounting arch tire, skew block is the benchmark of key brick, also be the localization criteria of arch tire, check the ovality of arch springing position furnace shell with roaster body of heater center, expanding reach radius before building by laying bricks or stones, spread appropriate mud on the brick surface puzzled when building by laying bricks or stones to build by laying bricks or stones, and deviation is adjusted;
(3) installing ball crown type arch tire: first carry out the making of arch tire, is that localization criteria carries out arch tire and installs with skew block; Arch tire makes and comprises the following steps:
A, arch tire calculating loft: arch tire divides six rings to make, each ring at least encircles tyre shoe by a slice and forms, and every sheet arch tyre shoe is made up of bow member sheet and lath, and bow member sheet size makes, every ring arch tyre shoe and lath one packet size make, the size assembling of every ring arch tyre shoe; Setting-out is carried out on the ground in arch tire fabricating yard, amplifies sample, determine bow member sheet, lath radian, determine ring beam position and processing dimension by design size 1:1;
B, arch tire make place construction: adopt rammed earth, paving one deck porous mechanism common brick, and surface cement mortar is levelling;
C, arch tire make: make bow member sheet and lath by corresponding radian, and assemble arching tyre shoe, and the arch tyre shoe made should install position by it and compile ring number;
D, arch tire are pre-assembled, refine: after spherical arch tire parts have made 1/4, in arch tire fabricating yard pre-installation on the ground, check that arch tire makes precision, are formed and formally install arch tire parameter;
E, location " ring beam " is installed makes: take skew block as localization criteria, based on the parameter that pre-installation provides, first determine vault center, 1 road ring beam of the 6th ring in place and arch tyre shoe, arch tire installs height should improve 18 ~ 25mm than design size; Again with the ring beam that the steel scaffold tubes in place of full hall scaffold in stove surrounds, ring beam position provides per pass ring beam parameter to install by pre-installation, then on ring beam, put arch tyre shoe group, reinforce full hall scaffold and ring beam, bow member tire group in place, lath between the adjacent arch tyre shoe of patch, supports and pads reverse timber wedge carry out adjustment and encircle tire between arch tire, and between support, full hall scaffold forms entirety in connection and stove in length and breadth;
(4) furnace roof brick masonry: the number order that furnace roof brick masonry is built by laying bricks or stones in advance according to furnace roof brick is carried out, on arch tire, ring number mark is made with the spacing of 4 ~ 5 rings before building by laying bricks or stones, the every ring of vault divides two sections of wet blocks of flowing water symmetry, be close to each other, but that does not close door is no more than 3 rings, each ring vault closes tweel block should be uniformly distributed in furnace roof, and the width closing tweel block is not less than 7/8 of former brick;
(5) remove furnace roof tire, settlement observation analysis: arch tire is removed after naturally solid 48 hours at brickwork joint mud, in case remove arch tire too early, not solid mud is extruded from brickwork joint, cause furnace roof sedimentation bigger than normal; The dismounting that vault supports evenly is carried out from outer shroud in chimney arch each position; Datum mark, observation station arrange, remove arch tire time, furnace roof is observed with the sedimentation of instrument to furnace roof, arch tire torn open after within 24 hours, to sedimentation proceed observation, furnace roof sedimentation is no more than 10mm; Finally build by laying bricks or stones at furnace roof clay insulating brick, remove scaffold in burner hearth.
2. the ball crown type furnace roof building method of fluidizing reactor as claimed in claim 1, is characterized in that: before described step (1), carry out furnace shell inspection and unwrapping wire.
3. the ball crown type furnace roof building method of fluidizing reactor as claimed in claim 1, is characterized in that: in described step (1), full hall scaffold is equilateral octagon.
4. the ball crown type furnace roof building method of fluidizing reactor as claimed any one in claims 1 to 3, it is characterized in that: after described step (1) completes, carry out furnace roof rain-proof shelter to set up: set up scaffold in furnace roof periphery, around scaffold, cover the rainproof tent of one deck, and fixing; Horizontal cross bar set up by the peripheral scaffold of furnace roof and full hall scaffold, and cross bar, to be formed centrally radial setting up in stove, then covers rainproof tent, and fixing.
5. the ball crown type furnace roof building method of fluidizing reactor as claimed in claim 1, it is characterized in that: in described step (2), should check after skew block finishes building, within ensureing skew block radius of the radian error 5mm, within surface smoothness error 3mm, within absolute altitude error 5mm.
6. the ball crown type furnace roof building method of fluidizing reactor as claimed in claim 1, it is characterized in that: the step e in described step (3), after arch tyre shoe group is in place, with center, ball crown type top for the center of circle, cambered surface and the surface smoothness of spherical arch tire is checked with elongated radian model, the position exceeding error placed under repair and adjusts, making whole spherical arch tire surface long arc degree model check table surface evenness be no more than 5mm.
7. the ball crown type furnace roof building method of fluidizing reactor as claimed in claim 1, it is characterized in that: in described step (4), before building vault by laying bricks or stones, at the bottom of skew block, dilatation joint filling refractory fibre place every block brick is jumped a queue timber wedge, prevents furnace roof brick masonry from tilting not having neck brick front abutment brick.
8. the ball crown type furnace roof building method of the fluidizing reactor as described in claim 1 or 7, is characterized in that: in described step (4), and the dilatation joint alumina silicate fiber felt at furnace shell gusset place is clogged, in order to avoid mortar and foreign material are fallen into; Each section of body of wall is built high-alumina brick by laying bricks or stones and is stayed in a circumferential direction and establish dilatation joint, inserts strawboard when building by laying bricks or stones at circumferencial direction every 5 ~ 6 pieces of bricks, and replace mud, adhesive tape seal suitable for reading, prevents mortar and foreign material from falling into.
9. the ball crown type furnace roof building method of fluidizing reactor as claimed in claim 1, is characterized in that: in described step (5), carries out observation adopt spirit level to divide carry out at ten two to the sedimentation of furnace roof.
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| CN104748549B (en) * | 2015-04-03 | 2017-05-10 | 沈阳鑫博工业技术股份有限公司 | Top cover structure of industrial kiln |
| CN108800941B (en) * | 2017-04-27 | 2019-11-22 | 五冶集团上海有限公司 | A kind of biting connecions hanging furnace top refractory brick construction method |
| CN112159078B (en) * | 2020-09-24 | 2023-02-03 | 彩虹集团有限公司 | Method for building liquid crystal substrate glass muffle furnace heater installation bricks |
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| DE4034073A1 (en) * | 1990-10-26 | 1992-04-30 | Bohn Paul | Industrial furnace with curved roof - in which each end of rectangular building block has edge with projecting lip and opposite end of same block has matching cavity etc. |
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