CN103033043A - Method for laying refractory bricks of large variable diameter part of 12,000t/d rotary kiln - Google Patents
Method for laying refractory bricks of large variable diameter part of 12,000t/d rotary kiln Download PDFInfo
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Abstract
The invention discloses a method for laying refractory bricks of a large variable diameter part of a 12,000t/d rotary kiln. The method is characterized by comprising the following steps of: inspecting a kiln shell; detecting the refractory bricks; longitudinally and transversely measuring and calculating a kiln axis in the rotary kiln to arrange wires; laying the refractory bricks on a boundary of a straight barrel and a diameter variation part; proportioning barrel diameter variation parameters of the diameter variation part, and adjusting and laying high-temperature fire clay; adjusting a bricklaying machine upwards, downwards, leftwards and rightwards according to the barrel diameter variation parameters for sealing; inspecting the laid refractory bricks; rotating the kiln for re-inspection; and performing inspection and acceptance. The method has the beneficial effects that the technical problem that a large kiln diameter easily forms a slight ellipse in a normal temperature state to deviate the theoretical design proportion of the refractory bricks is solved; and the refractory bricks and a kiln body are enabled to be kept concentric during cold-state and hot-state operation by measuring a deviation value to finely adjust the proportion of the refractory bricks, performing regulation by adopting a bricklaying machine regulation method, and the like, so that the laying quality of the refractory bricks of the rotary kiln is ensured, a construction period is shortened, and the construction cost is lowered.
Description
Technical field
The present invention relates to a kind of masonry of Rotary Kiln method, the building method of refractory brick is built at the large reducing position that especially relates to a kind of 12000t/d rotary kiln.
Background technology
At present, the 12000t/d rotary kiln, it is the biggest in the world day to produce the grog production capacity, also is simultaneously maximum, the longest rotary kiln of reducing in kiln footpath in the world.Pursue into reducing to Φ 7.2M from Φ 6.2M at its reducing position, and reducing length is 7.6M.The difficulty of construction of reducing position laying fireproof bricks is large in its kiln, and masonry quality is strict, and construction technology content is higher.Building by laying bricks or stones of Dayao footpath, large reducing position refractory brick needs key problems-solving when becoming construction at present.
Summary of the invention
The building method of refractory brick is built at the large reducing position that the purpose of this invention is to provide a kind of 12000t/d rotary kiln, solves the large problem of building construction difficulty of present Dayao footpath, large reducing position refractory brick.
The technical solution adopted for the present invention to solve the technical problems is:
The building method of refractory brick is built at a kind of large reducing position of 12000t/d rotary kiln, and its feature is being to comprise: to kiln shell health check-up look into → to vertically, laterally calculate in the detection of refractory brick → to rotary kiln the kiln discharge axis carry out unwrapping wire → to the laying fireproof bricks of straight tube and reducing intersection → to the cylindrical shell reducing parameter at reducing position carry out proportioning and high-temperature flame-proof mud regulate build by laying bricks or stones → according to reducing cylindrical shell parameter brick-laying machine regulated up and down seal → to the refractory brick that lays check → rotary kiln reexamines → checks and accepts; The specific embodiment is as follows:
A) health check-up is looked into to kiln shell; Comprise that on the kiln shell body will polish in uneven place, the corrosion oxide layer in the kiln shell, foreign material cleaning are totally;
B) to the detection of refractory brick; Comprise that the specification requirement specified value to refractory brick apparent size permissible variation and brick appearance and size, the large surface evenness of brick, substance, outward appearance outward appearance checks, detects
C) carry out unwrapping wire to vertically, laterally calculating the kiln discharge axis in the rotary kiln:
C1) to dividing the multimetering ovality along kiln cylinder body and the measured value record being put on record;
C2) to vertical datum line of newly putting up a kiln; Put 8 along the kiln circumference by " rice " font symmetry, every line is parallel with the kiln axis; The hoop control line is also put one every 1.0m; The hoop line is parallel and perpendicular to the axis of kiln mutually;
D) to the laying fireproof bricks of straight tube and reducing intersection:
D1) semi-ring is built by laying bricks or stones under the kiln body: to build by laying bricks or stones simultaneously be to build by laying bricks or stones in strict accordance with the design ratio requirement in both sides under the kiln cylinder body, it is even that the brick face is touched chamotte, the chamotte THICKNESS CONTROL is struck tightly with the rubber hammer block-by-block at 〉=1 millimeter, guarantees that chamotte is full, firm closely between brick and the brick;
D2) semi-ring is built by laying bricks or stones on the kiln body: lower semi-ring is built by laying bricks or stones when reaching 6 to 8 meters, sets up brick-laying machine, connects source of the gas, begins to build by laying bricks or stones semi-ring when air pressure reaches five MPas, and building method is identical with lower semi-ring; Different is opens first brick-laying machine arc bow member fixed air cylinder switch, fixing head, then open successively and remember switching cylinder, cylinder makes the major part of brick be close to kiln cylinder body to the brick microcephaly, build finalization area by laying bricks or stones, with the large face of primer fluid press pump top to the both sides brick, when pressure reaches 35 MPa, turn off all switching cylinders of brick-laying machine, mobile head, open brick-laying machine arc bow member fixed air cylinder switch, fix head, turn off the Pneumatic hydraulic switch pump, calculated the finalization area size, sealed with closer, reinforced with edge of a knife iron plate again;
E) the cylindrical shell reducing parameter at reducing position being carried out proportioning and high-temperature flame-proof mud regulates and builds by laying bricks or stones:
When building by laying bricks or stones, regulate, the little direction chamotte in kiln footpath be controlled at 1 millimeter, 1.44 millimeters in the large direction in kiln footpath, require every brick must parallel vertical in vertical datum line;
F) according to reducing cylindrical shell parameter brick-laying machine is regulated up and down and seal
F1) brick-laying machine adjustment; According to brick-laying machine size and kiln cylinder body reducing positional parameter, whenever build the Fourth Ring by laying bricks or stones brick-laying machine support height, horizontal stand extension, bow member radian are adjusted once, adjust altogether ten times, wherein need add four joint bow members for twice, respectively at the tenth five rings and the 3rd bull's eye; Last ring brick that 6.2 meters kilns footpaths of status requirement were processed and built by laying bricks or stones to the processing brick is first ring processing brick, the excision of the major part of brick is 13.2 millimeters as calculated, the second ring processing brick is at last ring brick at reducing position, and the microcephaly of brick excises 13.2 millimeters, and the machined surface of brick is to 7.2 meters kiln footpath directions;
F) refractory brick that lays is checked that rotary kiln reexamines: remove the parts such as head, tracheae after brick masonry finishes in kiln, stay frame and check the neck brick district by the slip of kiln Caudad kiln hood direction, after the neck brick district finishes by ring inspection, remove the brick-laying machine frame, rotary kiln 90 degree encircle inspection to the 7:00 position to shop fixtures and sealing junction;
G) rotary kiln reexamines rotary kiln 90 degree again, makes the neck brick district forward the 7:00 position to, position, neck brick district is checked again; After check finishing, turn 90 degrees again, shop fixtures and the sealing junction of another side checked,
With rotary kiln idle running three circles, advance again kiln and do once comprehensive inspection at last, confirm errorless after, deliver for a check directly over the neck brick district forwarded to;
H) check and accept:
After full kiln laying fireproof bricks has checked, tackled also before igniting that full kiln bricking once makes an overall screening and necessity fastening.
Beneficial effect of the present invention: the fine solution " the Dayao footpath forms the oval technical barrier that refractory brick Theoretical Design proportioning is caused a deviation of trace easily under the normal temperature state; by the measured deviation value refractory brick proportioning is finely tuned and adopt that brick-laying machine adjustment method is adjusted etc. and guarantee that refractory brick and kiln body can both guarantee concentric reliably in cold conditions and hot running ", guaranteed the masonry quality of rotary kiln refractory brick, shortened the construction period, reduce construction cost, filled up the blank that China Dayao footpath, large reducing position laying fireproof bricks are constructed.Its technology is reached advanced world standards, and economic and social benefit is remarkable.
Below with reference to drawings and Examples, the present invention is described in detail.
Description of drawings
Fig. 1 is process chart of the present invention.
Fig. 2 is the vertical datum line organigram of kiln body of setting up of the present invention.
Fig. 3 is that the present invention builds the organigram of wanting elder generation to stack bricks in advance before the reducing position by laying bricks or stones.
The specific embodiment
Embodiment 1, as shown in Figure 1, the building method of refractory brick is built at a kind of large reducing position of 12000t/d rotary kiln, and its feature is being to comprise: to kiln shell health check-up look into → to vertically, laterally calculate in the detection of refractory brick → to rotary kiln the kiln discharge axis carry out unwrapping wire → to the laying fireproof bricks of straight tube and reducing intersection → to the cylindrical shell reducing parameter at reducing position carry out proportioning and high-temperature flame-proof mud regulate build by laying bricks or stones → according to reducing cylindrical shell parameter brick-laying machine regulated up and down seal → to the refractory brick that lays check → rotary kiln reexamines → checks and accepts; The specific embodiment is as follows:
Step 1: to the requirement of kiln cylinder body equipment; Rotary kiln must be complete and qualified in work such as the installation of kiln system equipment, test, idling lotus interlock test runs, possesses just to allow under the condition of building refractory lining by laying bricks or stones to build by laying bricks or stones; Weld seam on the kiln cylinder body is full, and is qualified by test of flaw detection.The weldering surface exceeds surface of steel plate must not be greater than 1.0mm; Manhole door on the cylindrical shell etc. must not be opened in the weld seam position, and more than the back gauge weld seam 100mm of hole; Check ring for blocking bricks must not be welded in the welding position, avoids the impact of ovality as far as possible; The location tolerance of gear wheel: the beating≤1mm of the beating of circular radial≤1.5mm, end face circle.Will check comprehensively that to the kiln shell body on the housing will polish in uneven place before the construction, the foreign material such as the corrosion oxide layer of kiln shell are swept and are cleaned out;
Step 2: the preparation before building by laying bricks or stones:
Whether build front corresponding refractory brick appearance and size error criterion close inspection brick appearance and size by laying bricks or stones and meet the requirements, the large surface evenness≤0.5mm of priority control brick requires producer or owner that refractory brick examining report and audit are provided;
Refractory brick: basic brick is selected import refractory brick, adopts the VDZ DIN, and non-alkali bricks is selected domestic refractory brick, adopts the ISO international standard.
Import refractory brick standard size: B425:250 * 76.5/66.5 * 198
B825：250×73/68.5×198
Closer standard size: BP25:250 * 64/59 * 198
BP+25：250×83/74.5×198
The domestic refractory brick standard size of non-alkalescence: 425:250 * 90/103 * 198
825：250×96.5/103×198
Closer standard size: P25:250 * 83/74.5 * 198
P+25：250×93/84.5×198
According to the orderly unpacking carrying of the blend proportion of refractory brick, the brick of transporting in the kiln should divide the brick type orderly piling up, and in order to reduce the breakage of brick, protects self intensity of brick, send to forbid when passing brick to throw and falls, and accomplishes to handle with care;
Step 3: ellipticity measurement: before beginning to lay bricks, to divide the multimetering ovality and measured value record is put on record along kiln cylinder body, if measurement data surpasses prescribed limit, must further confirm together with construction unit, supervisor, until up to standardly can carry out the next procedure construction.
Step 4: vertical datum line of newly putting up a kiln is put 8 along the kiln circumference by " rice " font symmetry, and every line is parallel with the kiln axis; The hoop control line is put one every 1.0m; The hoop line all should be parallel to each other and perpendicular to the axis of kiln.Strictly build by laying bricks or stones by datum line when building by laying bricks or stones; (shown in Figure 2)
Selecting of refractory brick: basic brick is selected import refractory brick, adopts the VDZ DIN, and non-alkali bricks is selected domestic refractory brick, adopts the ISO international standard.
The selecting and stirring of chamotte
Select the chamotte of building requirement in the kiln by laying bricks or stones that meets of high-quality, arrange the special messenger to stir with agitator, be in harmonious proportion evenly, with transferring with usefulness.
Step 5: reducing position refractory brick build requirement by laying bricks or stones
To strictly select brick, select brick take length all neat, concentric reducer thickness all together as main; The ratio of control brick: the ratio requirement of building by laying bricks or stones for different kiln types is strictly built by laying bricks or stones by the design proportioning, will carry out track record to the actual ratio of building by laying bricks or stones, will in time adjust when having big difference with stoichiometric.
Want to stack bricks in advance first before building the reducing position by laying bricks or stones, to determine the accurate machining size of processing brick cut surface, mismachining tolerance≤2mm;
The adjusting of chamotte because reducing place laying fireproof bricks is covering of the fan, must be calculated chamotte thickness before the laying fireproof bricks, regulates when building by laying bricks or stones; Shown in Figure 3.
(example): calculate according to the wet mortar joint 1mm that builds, suppose 7.6 meters of reducing length, reducing is 1 meter, and refractory brick length is 198mm,
Then: laying fireproof bricks large chamotte in reducing place will reach 1.4mm by kiln tail side thickness, and (account form is that the cylindrical shell reducing differs 1m, totally 38 encircle bricks, average every ring brick (length 200mm) highly differs 26mm, large poor 81.64mm (3.14 * 26mm) of both sides common phase during every ring brick masonry, calculate divided by 190 bricks of every ring, average every large face of brick differs 0.4mm).
The control of hoop seam: when building by laying bricks or stones, every meter long permission≤2mm of circumferential weld deviation, but loopful length variation maximum magnitude≤8mm; The hoop distance of control refractory brick avoids crooked, and the diligent distance of measuring hoop line and brick is avoided twisting up and down;
The vertically control of datum line: large must be parallel to vertical datum line when refractory brick was laid bricks.
In building by laying bricks or stones, to strike tightly with wooden mallet or rubber hammer block-by-block, make its ring ring near, guarantee as far as possible (deviation≤8mm) on the same level face of same ring brick.When finding to have deviation excessive, use homogeneity chamotte compensation fine setting, guarantee between large of brick that in conjunction with firmly, mud is full between brick and the brick, requires chamotte slurry plumpness should reach more than 95% when building by laying bricks or stones;
The main points of laying bricks: lay bricks must make bricking be close to cylindrical shell, brick and brick by tight, brickwork joint is straight, hand over that circle is accurate, neck brick is firm, do not misplace, sagging coming to nothing not, the stress in the kiln will be evenly distributed on the every brick.Guarantee that bricking and kiln body can both keep concentric reliably under cold conditions He in the hot running;
The processing brick requires: will process when reducing position shop fixtures begins and finishes.In the process of laying bricks in the kiln, if can not satisfy when building processing request by laying bricks or stones with standard brick, can adopt to lengthen brick and process.Must not use other basic brick to process use.
Processing brick dimensional standard is as follows: processing brick scale error is less than in the 2mm; Processing thickness must not be less than 70% of standard brick; Processing length must be greater than more than 50% of standard brick; Large face must not be processed.
The cutting of processing brick needs to adopt brick cutting machine to carry out retrofit, must not make and process by hand brick.Arrange the special messenger to be responsible for, guarantee the processing dimension degree of accuracy.
Processing brick brick masonry requires: during the laying fireproof bricks unwrapping wire, with reducing position position while welding, put and establish the hoop normal line one, when arriving this position, laying fireproof bricks must process refractory brick, be refractory brick intensity before the assurance reducing, as be placed on ring second from the bottom before the reducing weld seam when processing brick＜200mm, be placed on ring last before the reducing weld seam during processing brick＞200mm.The large face length degree of processing brick must not be less than 200mm; Adopt wet block method.Chamotte should be with full, and even thickness is about 1-1.5mm;
Step 6: set up brick-laying machine and sealing: after the frame of laying bricks is good, should check first whether wind path is unimpeded, whether blast is sufficient, and whether cylinder works well, and whether the hydraulic oil of hydraulic top thick stick abundance and quality condition, and whether sealing ring has damage etc.
The upper semi-circle brick is being carried out in the sealing operation process,
To lock with full sized brick the adjacent ring 1-2 piece brick position of will staggering during neck brick.Only allow in the one ring brick to use same model to be no more than 2 blocks of neck bricks and be evenly distributed.The processing brick of terminal will shift to an earlier date the processing of 1-2 ring.Must not use steel plate in the neck brick seam;
The neck brick plate of the usefulness of laying bricks is common cold-rolled steel sheet δ=2-3mm.Require smoothly, crimping is not non-warping, without burr.Every block plate width should be less than the wide about 10mm of brick.Steel plate must not exceed the brick limit when building by laying bricks or stones, at most only allows to use a block plate in every seam.Only allow to use in the one ring brick and be no more than 4 block plates and be evenly distributed.Can not add fully as running into the neck brick plate during neck brick, the part of exposing must be cut off; Must not use steel plate that brick is adjusted.Attached neck brick iron plate
20 bricks in the centre of sealing require laid dry, to guarantee neck brick district intensity; Brick-laying machine pressure must be at 5-7Kg/cm2 during sealing; Sealing top pump pressure should reach 1/2 cold pressing strength of laying bricks, and basic brick is usually: 22-25Mpa; High-alumina brick is: 28-35Mpa;
Step 7: brick-laying machine is adjusted scheme: according to brick-laying machine size and barrel distortion positional parameter, brick-laying machine top pump stroke is up to 160mm, barrel distortion position every ring brick discrepancy in elevation differs 26mm, the every 100mm of the brick-laying machine discrepancy in elevation and horizontal diameter (every limit 50mm) adjusts once, namely per 4 ring bricks are adjusted a brick-laying machine, at reducing position 2-3 ring the brick-laying machine under-chassis are changed the lengthening under-chassis, are adjusting brick-laying machine simultaneously, there is the special messenger to command, unify to coordinate, the prevention security incident.
Step 8: must carry out brick inspection in the kiln after the end of laying bricks in the kiln, the hard waddy that employing rubber hammer and φ 100-120mm are long about 1 meter pursues ring, block-by-block knocks inspection, finds to become flexible the timely complement iron plate of phenomenon and reinforces, and it is fastening to guarantee that ring encircles.The abnormal conditions that the tracing process of laying bricks is occurred are as the emphasis inspection.The neck brick district is the not tight weakness of hoop envelope, the emphasis that checks especially.
Step 9: remove the parts such as head, tracheae after brick masonry finishes in kiln, stay frame and check the neck brick district by the slip of kiln Caudad kiln hood direction.The brick-laying machine frame is removed after finishing by ring inspection by the neck brick district, and rotary kiln 90 degree are to the 7:00 position (check point will be placed on the 7:00 position all the time), and emphasis checks shop fixtures and sealing junction ring.Rotary kiln 90 degree make the neck brick district forward the 7:00 position to again, position, neck brick district are checked again; After check finishing, turn 90 degrees again, shop fixtures and the sealing junction of another side checked, with rotary kiln idle running three circles, advance again kiln and do once comprehensive inspection at last, confirm errorless after, deliver for a check directly over the neck brick district forwarded to.After full kiln laying fireproof bricks has checked, tackled also before igniting that full kiln bricking once makes an overall screening and necessity fastening, it is perfectly safe to accomplish.
Economic benefit: 12000t/d rotary kiln laying fireproof bricks is difficult to ensure the quality of products according to traditional building by laying bricks or stones, generally speaking, change brick in the kiln and need to stop kiln → cold kiln 48h → advance kiln maintenance 12h → igniting, intensification 24h, amount to 84h, by production every day production capacity 12000t grog, 220 yuan of calculating of grog unit price per ton, causing direct economic loss is exactly 12000 * (84 * 24) * 220=9240000 unit.Cost reduction, shortened the duration, obtained preferably economic benefit.
This engineering method construction system is simple, replaces original push rod masonry method, has guaranteed like this construction safety, has guaranteed masonry quality, save a large amount of manpowers, shortened the duration, reduced cost, and homemade brick-laying machine can reuse, and builds comparison by laying bricks or stones with push rod and can save up to ten million funds.Adopt this engineering method can save a large amount of funds, human and material resources, the existing market occupation rate is 100%.
Social benefit: traditional building by laying bricks or stones can only guarantee that refractory brick cement industry service cycle standard is 12 months, to build by laying bricks or stones with this engineering method and can guarantee that refractory brick operated to more than 36 months, large reducing position is 780000 yuan of calculating by one-period refractory brick cost and construction cost, save 2 cycles, economize on the use of funds is exactly 1560000 yuan, in prediction on such basis, for country has saved a large amount of all kinds of energy and productivity, for motherland's environmental protection, energy-conservation cause are made huge contribution.
This construction method does not need to set up any scaffold, and security performance is high, at home and abroad is safest a kind of construction at present.
This construction method has been saved a large amount of steel for country, has also saved a large amount of labours, has improved productivity, and having saved cost also is the engineering method of energy-conserving and environment-protective both at home and abroad at present.
This construction method engineering method has been filled up international cement rotary kiln reducing position job specfication.The effective building method that a stripe shape is provided is built by laying bricks or stones in all kinds of kiln type reducings position.
Claims (1)
1. the building method of refractory brick is built at the large reducing position of a 12000t/d rotary kiln, and its feature is being to comprise: to kiln shell health check-up look into → to vertically, laterally calculate in the detection of refractory brick → to rotary kiln the kiln discharge axis carry out unwrapping wire → to the laying fireproof bricks of straight tube and reducing intersection → to the cylindrical shell reducing parameter at reducing position carry out proportioning and high-temperature flame-proof mud regulate build by laying bricks or stones → according to reducing cylindrical shell parameter brick-laying machine regulated up and down seal → to the refractory brick that lays check → rotary kiln reexamines → checks and accepts; The specific embodiment is as follows:
A) health check-up is looked into to kiln shell; Comprise that on the kiln shell body will polish in uneven place, the corrosion oxide layer in the kiln shell, foreign material cleaning are totally;
B) to the detection of refractory brick; Comprise that the specification requirement specified value to refractory brick apparent size permissible variation and brick appearance and size, the large surface evenness of brick, substance, outward appearance outward appearance checks, detects
C) carry out unwrapping wire to vertically, laterally calculating the kiln discharge axis in the rotary kiln:
C1) to dividing the multimetering ovality along kiln cylinder body and the measured value record being put on record;
C2) to vertical datum line of newly putting up a kiln; Put 8 along the kiln circumference by " rice " font symmetry, every line is parallel with the kiln axis; The hoop control line is also put one every 1.0m; The hoop line is parallel and perpendicular to the axis of kiln mutually;
D) to the laying fireproof bricks of straight tube and reducing intersection:
D1) semi-ring is built by laying bricks or stones under the kiln body: to build by laying bricks or stones simultaneously be to build by laying bricks or stones in strict accordance with the design ratio requirement in both sides under the kiln cylinder body, it is even that the brick face is touched chamotte, the chamotte THICKNESS CONTROL is struck tightly with the rubber hammer block-by-block at 〉=1 millimeter, guarantees that chamotte is full, firm closely between brick and the brick;
D2) semi-ring is built by laying bricks or stones on the kiln body: lower semi-ring is built by laying bricks or stones when reaching 6 to 8 meters, sets up brick-laying machine, connects source of the gas, begins to build by laying bricks or stones semi-ring when air pressure reaches five MPas, and building method is identical with lower semi-ring; Different is opens first brick-laying machine arc bow member fixed air cylinder switch, fixing head, then open successively and remember switching cylinder, cylinder makes the major part of brick be close to kiln cylinder body to the brick microcephaly, build finalization area by laying bricks or stones, with the large face of primer fluid press pump top to the both sides brick, when pressure reaches 35 MPa, turn off all switching cylinders of brick-laying machine, mobile head, open brick-laying machine arc bow member fixed air cylinder switch, fix head, turn off the Pneumatic hydraulic switch pump, calculated the finalization area size, sealed with closer, reinforced with edge of a knife iron plate again;
E) the cylindrical shell reducing parameter at reducing position being carried out proportioning and high-temperature flame-proof mud regulates and builds by laying bricks or stones:
When building by laying bricks or stones, regulate, the little direction chamotte in kiln footpath be controlled at 1 millimeter, 1.44 millimeters in the large direction in kiln footpath, require every brick must parallel vertical in vertical datum line;
F) according to reducing cylindrical shell parameter brick-laying machine is regulated up and down and seal
F1) brick-laying machine adjustment; According to brick-laying machine size and kiln cylinder body reducing positional parameter, whenever build the Fourth Ring by laying bricks or stones brick-laying machine support height, horizontal stand extension, bow member radian are adjusted once, adjust altogether ten times, wherein need add four joint bow members for twice, respectively at the tenth five rings and the 3rd bull's eye; Last ring brick that 6.2 meters kilns footpaths of status requirement were processed and built by laying bricks or stones to the processing brick is first ring processing brick, 13.2 millimeters of the major part excisions of brick, the second ring processing brick is at last ring brick at reducing position, and the microcephaly of brick excises 13.2 millimeters, and the machined surface of brick is to 7.2 meters kiln footpath directions;
F2) refractory brick that lays is checked that rotary kiln reexamines: remove the parts such as head, tracheae after brick masonry finishes in kiln, stay frame and check the neck brick district by the slip of kiln Caudad kiln hood direction, after the neck brick district finishes by ring inspection, remove the brick-laying machine frame, rotary kiln 90 degree encircle inspection to the 7:00 position to shop fixtures and sealing junction;
G) rotary kiln reexamines rotary kiln 90 degree again, makes the neck brick district forward the 7:00 position to, position, neck brick district is checked again; After check finishing, turn 90 degrees again, shop fixtures and the sealing junction of another side checked,
With rotary kiln idle running three circles, advance again kiln and do once comprehensive inspection at last, confirm errorless after, deliver for a check directly over the neck brick district forwarded to;
H) check and accept:
After full kiln laying fireproof bricks has checked, tackled also before igniting that full kiln bricking once makes an overall screening and necessity fastening.
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| CN106705673A (en) * | 2017-01-10 | 2017-05-24 | 安徽芜湖海螺建筑安装工程有限责任公司 | Inner brick compensating method for cement rotary kiln |
| CN110530148A (en) * | 2019-09-25 | 2019-12-03 | 滕州大鑫炉窑工程有限公司 | A kind of cement rotary kiln refractory brick brick-building art |
| CN111486701A (en) * | 2020-04-23 | 2020-08-04 | 五冶集团上海有限公司 | Method for isolating rotary kiln by drying furnace of cement kiln system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104596239A (en) * | 2015-02-05 | 2015-05-06 | 安徽芜湖海螺建筑安装工程有限责任公司 | Method for laying height-different fireproof bricks for butt joint of new and old cylinders of rotary cement kiln |
| CN104596291A (en) * | 2015-02-05 | 2015-05-06 | 安徽芜湖海螺建筑安装工程有限责任公司 | Construction method for using fireproof material in rotary cement kiln |
| CN104596238A (en) * | 2015-02-14 | 2015-05-06 | 安徽芜湖海螺建筑安装工程有限责任公司 | Method for bricklaying tertiary air duct by waste refractory bricks of rotary cement kiln |
| CN104596237A (en) * | 2015-02-14 | 2015-05-06 | 安徽芜湖海螺建筑安装工程有限责任公司 | Masonry method for improving refractory liner of tertiary air duct of dry-process cement kiln |
| CN104677091A (en) * | 2015-02-14 | 2015-06-03 | 安徽芜湖海螺建筑安装工程有限责任公司 | Local deformation masonry method in barrel of rotary cement kiln |
| CN104596238B (en) * | 2015-02-14 | 2016-07-06 | 安徽芜湖海螺建筑安装工程有限责任公司 | The method of the waste and old laying fireproof bricks tertiary-air pipe of cement rotary kiln |
| CN105135890A (en) * | 2015-08-23 | 2015-12-09 | 安徽芜湖海螺建筑安装工程有限责任公司 | Building method for replacing refractory bricks with specific diameter in cement rotary kiln |
| CN105091568A (en) * | 2015-08-24 | 2015-11-25 | 安徽芜湖海螺建筑安装工程有限责任公司 | Method for constructing refractory bricks at deformed parts of barrel in rotary cement kiln |
| CN106705673A (en) * | 2017-01-10 | 2017-05-24 | 安徽芜湖海螺建筑安装工程有限责任公司 | Inner brick compensating method for cement rotary kiln |
| CN110530148A (en) * | 2019-09-25 | 2019-12-03 | 滕州大鑫炉窑工程有限公司 | A kind of cement rotary kiln refractory brick brick-building art |
| CN111486701A (en) * | 2020-04-23 | 2020-08-04 | 五冶集团上海有限公司 | Method for isolating rotary kiln by drying furnace of cement kiln system |
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