CN104596299A - Inner tube hanging sheet replacement construction method for preheater cyclone of cement clinker production line - Google Patents
Inner tube hanging sheet replacement construction method for preheater cyclone of cement clinker production line Download PDFInfo
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- CN104596299A CN104596299A CN201510060424.1A CN201510060424A CN104596299A CN 104596299 A CN104596299 A CN 104596299A CN 201510060424 A CN201510060424 A CN 201510060424A CN 104596299 A CN104596299 A CN 104596299A
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- lacing film
- inner core
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- circle
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Abstract
The invention discloses an inner tube hanging sheet replacement construction method for a preheater cyclone of a cement clinker production line. The method is implemented by erecting of a scaffold, disassembling of hanging sheets, pouring construction, welding rod welding and the like. According to the construction method, a construction system is simple; the construction method is adopted instead of a conventional cyclone hanging sheet replacement construction method, so that construction safety is ensured, manpower is greatly saved, the construction period is shortened, and the cost is lowered; A/B series of hanging sheets of the cyclone are required to be simultaneously replaced, and by the novel method, two cyclones can be simultaneously operated by 12 operators, so that the construction time is saved by a half, and the stopping time of the production line is shortened.
Description
Technical field
The present invention relates to cement clinker production line field, especially relate to a kind of cement clinker production line internal barrel of preheater cyclone barrel lacing film and change construction method.
Background technology
At present, precalciner system cyclone cylinder plays solid and gas separation, fully heat-shift.Realize this function, key is the Proper Match of cyclone cylinder and inner core and the working condition of inner core.The Main Function of inner core strengthens swirl strength, strengthens rate of heat exchange, improves resolution ratio.Inner core lacing film differs because of material, the coefficient of expansion is not etc., in addition serviceability temperature such as to transfinite at each side factor, generally there are distortion in various degree, damage, ftracture, drop the phenomenon such as to collapse, this will cause gas solid separation rate and material resolution ratio to reduce, heat loss increases, yield and quality degradation, notably system jams.Pre-heating system heat engineering state after inner core deforms also changes thereupon, each parameter all shows abnormal, material phenomenon of collapsing occurs in a large number, and often occur, the easy buildup of duct coupling, pipeline available ventilation area reduces, resistance increases, objectively exacerbate again the material that collapses, the severe exacerbation thermal technology state of pre-heating system, enter kiln resolution ratio and reduce.Generation is collapsed more greatly after material, easily alters material until grate-cooler in kiln, and kiln head and tail emits ash serious, and often there is malleation, system ventilation resistance is large, and the little imperfect combustion causing again coal dust of pressure before kiln, causes the easy bridging of kiln tail reducing, the material that collapses of preheater is exacerbated to a certain extent after bridging, output fluctuation is large, and temperature fluctuation is large, and the material that collapses is also more frequent, whole kiln system is among a kind of vicious circle, has had a strong impact on the yield and quality of nsp kiln.Inner core lacing film mainly adopts casting heat-resistant steel (ZG40Cr25Ni20Si2N), bears maximum temperature 1150 DEG C.Because the environment in preheater is harsh: the high speed of high temperature, alkali steam, sulphur steam and powder is washed away, and makes the service life of casting heat-resistant steel preheater lacing film very short.Particularly four, the preheater lacing film of Pyatyi, only about 1 year life-span.In system process and the better situation of raw materials and fuel three, level Four can reach about 2 years service life.If casting technique falls behind, chemical composition batching is defective, its service life is no more than 1 year.
Summary of the invention
The object of this invention is to provide a kind of cement clinker production line internal barrel of preheater cyclone barrel lacing film and change construction method, solve cement clinker production line internal barrel of preheater cyclone barrel lacing film change the engineering time long, need to drop into overstaffed, the problem that security risk is large.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of cement clinker production line internal barrel of preheater cyclone barrel lacing film changes construction method, it is characterized in that: comprise the following steps:
1) according to field condition, with crane or hoist engine, inner core lacing film is had bad luck assigned address on preheater;
2) the weight flap valve pressure 1T cucurbit will changing the emission of baiting chute of inner core is locked, prevent top skinning to be caving and injure workmen by a crashing object, simultaneously by locked for the weight flap valve pressure 1T cucurbit of cyclone cylinder emission of baiting chute, when preventing from changing lacing film, lacing film comes off and injures downstream workmen by a crashing object
3) put up scaffold, carry out an acceptance inspection before entering interior tube construction to scaffold, on scaffold, springboard iron wire is firm by two ends colligation,
4) at scaffold upper position erection electric block,
5) when dismantling lacing film will according to from bottom to top, the from coil to coil order of carrying out, often pull down one piece of lacing film iron wire or lacing film is tied by rope, with electric block, lacing film hung down, transport cyclone cylinder outside from manhole door,
6) the space castable between inner core hanging plate base and preheater inner barrel pedestal.
7) suspension hook of first lap lacing film upper end is placed in the loop-hook groove of inner core hanging plate base, and forms the inner core lacing film of first lap circle along each monomer lacing film of its annular circumferential close hanging;
8) suspension hook of the second circle lacing film upper end is placed in the hook groove of first lap lacing film lower end, and along the arrangement of inner core circumference close hanging, forms the inner core lacing film that the second circle is circular;
9) lacing film of first lap and the second circle arranges in top-bottom cross dense arrangement mode, and the rest may be inferred;
10) last lap is pushed down by lacing film card article;
11) by the press strip lacing film of next circle and the heat resistant steel electrode spot welding of lacing film card article.
Beneficial effect of the present invention: this construction method construction system is simple, replaces original cyclone cylinder lacing film to change construction method, this ensure that construction safety, saved a large amount of manpowers, shorten the duration, reduce cost.Cyclone cylinder changes lacing film needs A/B series to change simultaneously, uses new process 12 people can two cyclone cylinders operations simultaneously, and the engineering time saves half, shortens production line and stops the kiln time;
Detailed description of the invention
Embodiment 1, a kind of cement clinker production line internal barrel of preheater cyclone barrel lacing film changes construction method, it is characterized in that: comprise the following steps:
First be limited in place, job site and operating environment and build in allowed band, in rational deployment, specification are enclosed, accomplish that clear, complete, the various sign of label is eye-catching, construction site is neatly civilized.
Again construction site road is hardened, and often construction road is sprinkled water at fine day, prevent from stirring up a cloud of dust, pollute surrounding environment.
1) according to field condition, with crane or hoist engine, inner core lacing film is had bad luck assigned address on preheater;
2) the weight flap valve pressure 1T cucurbit will changing the emission of baiting chute of inner core is locked, prevent top skinning to be caving and injure workmen by a crashing object, simultaneously by locked for the weight flap valve pressure 1T cucurbit of cyclone cylinder emission of baiting chute, when preventing from changing lacing film, lacing film comes off and injures downstream workmen by a crashing object
3) put up scaffold, carry out an acceptance inspection before entering interior tube construction to scaffold, on scaffold, springboard iron wire is firm by two ends colligation,
4) at scaffold upper position erection electric block, be used as to have bad luck lacing film up and down,
5) when dismantling lacing film will according to from bottom to top, the from coil to coil order of carrying out, often pull down one piece of lacing film iron wire or lacing film is tied by rope, with electric block, lacing film hung down, transport cyclone cylinder outside from manhole door,
6) the space castable between inner core hanging plate base and preheater inner barrel pedestal,
7) suspension hook of first lap lacing film upper end is placed in the loop-hook groove of inner core hanging plate base, and forms the inner core lacing film of first lap circle along each monomer lacing film of its annular circumferential close hanging;
8) suspension hook of the second circle lacing film upper end is placed in the hook groove of first lap lacing film lower end, and along the arrangement of inner core circumference close hanging, forms the inner core lacing film that the second circle is circular;
9) lacing film of first lap and the second circle arranges in top-bottom cross dense arrangement mode, and the rest may be inferred;
10) last lap pushes down by lacing film card article the flange that lacing film card article is annular dual-cavity;
11) by press strip lacing film of next circle or highly less of the spot welding of lacing film card article heat resistant steel electrode.
Embodiment 2, a kind of cement clinker production line internal barrel of preheater cyclone barrel lacing film changes construction method, it is characterized in that: comprise the following steps:
First be limited in place, job site and operating environment and build in allowed band, in rational deployment, specification are enclosed, accomplish that clear, complete, the various sign of label is eye-catching, construction site is neatly civilized.
Again construction site road is hardened, and often construction road is sprinkled water at fine day, prevent from stirring up a cloud of dust, pollute surrounding environment.
1) according to field condition, with crane or hoist engine, inner core lacing film is had bad luck assigned address on preheater;
2) the weight flap valve pressure 1T cucurbit will changing the emission of baiting chute of inner core is locked, prevents top skinning to be caving and injures workmen by a crashing object, simultaneously by locked for the weight flap valve pressure 1T cucurbit of cyclone cylinder emission of baiting chute, and blocks tremie pipe,
3) put up scaffold, carry out an acceptance inspection before entering interior tube construction to scaffold, on scaffold, springboard iron wire is firm by two ends colligation,
4) at scaffold upper position erection electric block, be used as to have bad luck lacing film up and down.
5) when dismantling lacing film will according to from bottom to top, the from coil to coil order of carrying out, often pull down one piece of lacing film iron wire or lacing film is tied by rope, with electric block, lacing film hung down, transport cyclone cylinder outside from manhole door,
6) fill up with high temperature resistant rock wool, enter post-etching inner core hanging plate base or bolt with square corrosive gas, cause inner core lacing film to come off,
7) suspension hook of first lap lacing film upper end is placed in the loop-hook groove of inner core hanging plate base, and forms the inner core lacing film of first lap circle along each monomer lacing film of its annular circumferential close hanging;
8) suspension hook of the second circle lacing film upper end is placed in the hook groove of first lap lacing film lower end, and along the arrangement of inner core circumference close hanging, forms the inner core lacing film that the second circle is circular;
9) lacing film of first lap and the second circle arranges in top-bottom cross dense arrangement mode, and the rest may be inferred;
10) last lap pushes down by lacing film card article the flange that lacing film card article is annular dual-cavity;
11) by press strip lacing film of next circle or highly less of the spot welding of lacing film card article heat resistant steel electrode.Should note in above-described embodiment
1, correctly articles for labour protection are dressed;
2, in inner core, operation must have adequate illumination, meets construction needs;
3, hanging device check after, must carry out examination lift, guarantee safe and reliable after, can normally use;
4, forbid remarkable below lifting part and stop, safety warning rope need be drawn in lifting scene;
5, forbid that when dismantling old lacing film people from station, below transmits old lacing film;
6, enter inner core operation and must obey the unified arrangement of cross-operation, actively link up;
7, operating personnel constructs and must wear safety belt in cyclone cylinder;
8, preheater cyclone uptake flue must set up protective frame, and is paved with bamboo springboard;
9, carefully should check castable and skinning situation before entering interior tube construction, prevent skinning and castable from collapsing and injure bottom workmen by a crashing object.
Economic benefit
Generally, 5000t/d inner core lacing film changes the 3 day time of needs, and method of the adopting new technology engineering time is 1 day, and saving time is 2 days, and by production every day production capacity 5000t grog, grog unit price per ton 220 yuan calculating, causes direct economic loss to be exactly 5000
× 2 × 220=2200000 unit.Shorten the duration, achieve good economic benefit.
Above embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that the common engineers and technicians in this area make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.
Claims (1)
1. cement clinker production line internal barrel of preheater cyclone barrel lacing film changes a construction method, it is characterized in that, comprises the following steps:
1) according to field condition, with crane or hoist engine, inner core lacing film is had bad luck assigned address on preheater;
2) the weight flap valve pressure 1T cucurbit will changing the emission of baiting chute of inner core is locked, prevent top skinning to be caving and injure workmen by a crashing object, simultaneously by locked for the weight flap valve pressure 1T cucurbit of cyclone cylinder emission of baiting chute, when preventing from changing lacing film, lacing film comes off and injures downstream workmen by a crashing object;
3) put up scaffold, carry out an acceptance inspection to scaffold before entering interior tube construction, on scaffold, springboard iron wire is by firm for two ends colligation;
4) at scaffold upper position erection electric block;
5) when dismantling lacing film will according to from bottom to top, the from coil to coil order of carrying out, often pull down one piece of lacing film iron wire or lacing film is tied by rope, with electric block, lacing film hung down, transport cyclone cylinder outside from manhole door;
6) the space castable between inner core hanging plate base and preheater inner barrel pedestal;
7) suspension hook of first lap lacing film upper end is placed in the loop-hook groove of inner core hanging plate base, and forms the inner core lacing film of first lap circle along each monomer lacing film of its annular circumferential close hanging;
8) suspension hook of the second circle lacing film upper end is placed in the hook groove of first lap lacing film lower end, and along the arrangement of inner core circumference close hanging, forms the inner core lacing film that the second circle is circular;
9) lacing film of first lap and the second circle arranges in top-bottom cross dense arrangement mode, and the rest may be inferred;
10) last lap is pushed down by lacing film card article;
11) by the press strip lacing film of next circle and the heat resistant steel electrode spot welding of lacing film card article.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510060424.1A CN104596299A (en) | 2015-02-05 | 2015-02-05 | Inner tube hanging sheet replacement construction method for preheater cyclone of cement clinker production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510060424.1A CN104596299A (en) | 2015-02-05 | 2015-02-05 | Inner tube hanging sheet replacement construction method for preheater cyclone of cement clinker production line |
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| CN104596299A true CN104596299A (en) | 2015-05-06 |
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| CN201510060424.1A Pending CN104596299A (en) | 2015-02-05 | 2015-02-05 | Inner tube hanging sheet replacement construction method for preheater cyclone of cement clinker production line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109304588A (en) * | 2018-09-14 | 2019-02-05 | 金川集团股份有限公司 | A kind of ball mill opposite opened gear wheel replacement installation method |
| CN111721139A (en) * | 2020-06-03 | 2020-09-29 | 滕州磊鑫工程技术有限公司 | Novel dry-method cement production line decomposing furnace crust cleaning method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4101336A (en) * | 1976-01-12 | 1978-07-18 | F. L. Smidth & Co. | Method of burning pulverous alkali-containing raw materials and kiln plant therefor |
| CN202329219U (en) * | 2011-08-18 | 2012-07-11 | 江苏华信达特钢科技有限公司 | Inner tube of preheater cyclone cylinder with super-highly heat-resistant steel strip, and ceramic hanging plate and steel strip thereof |
| CN203586837U (en) * | 2013-11-25 | 2014-05-07 | 中建材（合肥）热工装备科技有限公司 | Connecting method for hanging pieces of preheater cyclone inner cylinder |
-
2015
- 2015-02-05 CN CN201510060424.1A patent/CN104596299A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4101336A (en) * | 1976-01-12 | 1978-07-18 | F. L. Smidth & Co. | Method of burning pulverous alkali-containing raw materials and kiln plant therefor |
| CN202329219U (en) * | 2011-08-18 | 2012-07-11 | 江苏华信达特钢科技有限公司 | Inner tube of preheater cyclone cylinder with super-highly heat-resistant steel strip, and ceramic hanging plate and steel strip thereof |
| CN203586837U (en) * | 2013-11-25 | 2014-05-07 | 中建材（合肥）热工装备科技有限公司 | Connecting method for hanging pieces of preheater cyclone inner cylinder |
Non-Patent Citations (1)
| Title |
|---|
| 江超等: "预热器内筒挂片的更换方法", 《新世纪水泥导报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109304588A (en) * | 2018-09-14 | 2019-02-05 | 金川集团股份有限公司 | A kind of ball mill opposite opened gear wheel replacement installation method |
| CN109304588B (en) * | 2018-09-14 | 2021-01-29 | 金川集团股份有限公司 | Method for replacing and installing split large gear of ball mill |
| CN111721139A (en) * | 2020-06-03 | 2020-09-29 | 滕州磊鑫工程技术有限公司 | Novel dry-method cement production line decomposing furnace crust cleaning method |
| CN111721139B (en) * | 2020-06-03 | 2021-10-26 | 滕州磊鑫工程技术有限公司 | Dry-method cement production line decomposing furnace crust cleaning method |
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Application publication date: 20150506 |