CN109000261A - Stoker fired grate formula garbage burning boiler construction method of installation - Google Patents
Stoker fired grate formula garbage burning boiler construction method of installation Download PDFInfo
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- CN109000261A CN109000261A CN201810914619.1A CN201810914619A CN109000261A CN 109000261 A CN109000261 A CN 109000261A CN 201810914619 A CN201810914619 A CN 201810914619A CN 109000261 A CN109000261 A CN 109000261A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/002—Incineration of waste; Incinerator constructions; Details, accessories or control therefor characterised by their grates
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Abstract
The invention discloses a kind of stoker fired grate formula garbage burning boiler construction methods of installation, the specific steps of which are as follows: preparation of construction: the configuration and installation of boiler component equipment unpacking inspection, boiler foundation repetition measurement unwrapping wire, parallels；Construction method of installation: the preparation and production of auxiliary tool, auxiliary tool include steelframe, platform staircase, temporary ladder, aisle guardrail, temporary platform, temporary platform guardrail, scaffold hoistable platform and bracket simply can be shifted；The installation of boiler internal equipment, internal unit include boiler grate, water-cooling system, drum, superheater and economizer；The installation of rain-proof shelter, hydraulic boiler set, furnace brickwork dry, boil furnace steam tightness test, safe trial operation；The present invention is suitable for the stoker fired grate formula garbage burning boiler installation of domestic refuse-burning plant separate unit day processing rubbish 500t/d or so, improves mechanized construction degree, reduces labor intensity, guarantee construction quality, shorten the construction period, improving productivity and economic benefit.
Description
Technical field
The present invention relates to a kind of garbage burning boiler construction methods of installation, and in particular to a kind of stoker fired grate formula waste incineration
Boiler erection construction method.
Background technique
As the national economic development and living standards of the people improve and urban population increases sharply, domestic waste
Increase year by year, the house refuse, excrement, sewage in city often form ring-type for system with drinking water and be coupled, garbage loading embeading
The improper possible sprawling for causing infectious disease of method.Waste incineration solves traditional rubbish " collection-transport-landfill " processing mode
Insurmountable problem becomes the main way of China big and medium-sized cities domestic rubbish disposal；Using rubbish as " new energy ", pass through
Waste incineration and generating electricity or recycling pyrolysis, not only recycle the energy, and realize recycling, innoxious, minimizing is most thoroughly located
Reason mode, waste incineration industry be embody this epoch conservation culture new industry, realize garbage as resource process and with
Environmental security engineering centered on innoxious solves burning disposal process from improvement is burned, dedusting method captures dioxin difficulty
Middle dioxin-century poison the problem occurred.
Renewable Energy Development is encouraged and supported to national appearance policy, actively supports to develop waste incineration power generation project, in
Be China have more city start using advanced burning process and equipment processing house refuse, domestic waste incineration is to burn
The capital equipment of house refuse is burnt, mainly has fire grate type incinerator, stream applied to the incinerator type of furnace of domestic waste at present
Fluidized-bed incineration furnace and rotary kiln type incinerator:
1, fire grate type incinerator: fire grate type incinerator is various informative, application account for the 80% of the whole world waste incineration total market size with
On, the sharpest edges of such type of furnace are technology maturation, stable, reliable wide adaptability, and most solid refuses are not required to
Want any pretreatment can directly into furnace burn, be applied especially to large scale rubbish centralized processing, can make waste incineration and generating electricity (or supply
Heat)；But the application of mechanical kiln grate furnace also has limitation, and the extra high sludge of moisture content, big part house refuse are not suitable for directly using
Fire grate type incinerator.
2, fluidized bed incinerator: fluidized bed incinerator can carry out burning disposal to any rubbish, and great advantage be can be with
It obtains complete combustion efficiency and harmful substance most thoroughly destroy, the unburning material generally to discharge out of the furnace is on 1% left side
The right side, be it is minimum in several ways, it is highly advantageous to environmental protection；But since fluidized bed has stringent pre-processing requirements to rubbish,
On consumer waste incineration using limited, and existing fluidized bed refuse incinerator treatment scale is smaller, is not yet received extensively
Using needing to be further improved.
3, Rotation error: Rotation error is a kind of technology of maturation, if containing more in rubbish to be processed
The substance of kind difficult to burn or the moisture variation range of rubbish are larger, and rotary kiln is unique ideal selection；Rotary kiln is because turn
Speed change, residence time of the rubbish in kiln can be influenced, and rubbish is applied in high temperature air and excessive oxygen compared with
Strong mechanical collision can obtain combustible and the very low clinker of putrefaction content；But there are also obvious disadvantages for the technology:
Garbage treatment quantity is less, flying dust processing is difficult, burning is not easy to control, this makes it be difficult to adapt to the needs of power generation, in current rubbish
Using less in burning.
In above-mentioned 3 kinds of incinerator technologies, mechanical grate incinerator technical perfection is reliable, capacity is big, to the adaptability of rubbish
Relatively strong, operation and maintenance are convenient, the rubbish of incendivity low heat value high-moisture, are that comparison is suitble to the incineration technology developed in China, but
It is immature due to construction method of installation, cause every process to construct no permanent order, the selection of auxiliary tool is improper, can prolong
The long construction period, improve engineering cost, construction quality it is difficult to ensure that.
Summary of the invention
The technical problems to be solved by the present invention are: overcoming the deficiencies in the prior art, a kind of stoker fired grate is provided
Formula garbage burning boiler construction method of installation, according to on-site actual situations, to each subitem of fire grate type garbage burning boiler installation
Process formulates specific construction method of installation in detail, improves construction quality, compresses the duration to the maximum extent and reduces engineering cost.
Of the invention is adopted the technical scheme that in order to solve the technical problem: a kind of stoker fired grate formula garbage burning boiler peace
Construction method is filled, the specific steps of which are as follows:
Preparation of construction:
1) boiler component equipment unpacking inspection:
According to packing list, the arrival quantity and specifications and models of verifying apparatus and attachment check equipment in manufacture transportational process
Defect, and be corrected repairing；
2) boiler foundation repetition measurement unwrapping wire:
Basis check, checks orientation axis and manufacturer's building standard point, according to boiler steel frame basis, selects the base in length and breadth of benchmark steelframe
Directrix and absolute altitude carry out unwrapping wire；
3) configuration and installation of parallels:
Calculate the parallels thickness between each column bottom plate and basis, surface of base all gets pitted skin, places at parallels chipping simultaneously
Arrange parallels；
Construction method of installation:
1) preparation and production of auxiliary tool:
Auxiliary tool includes steelframe, platform staircase, temporary ladder, aisle guardrail, temporary platform, temporary platform guardrail, scaffold
Hoistable platform and simply displaceable bracket, for steelframe when ground is combined, the surface of steel frame column, steelframe is arranged in platform support
Column segmented welding and intermediate setting fishplate bar, production temporary ladder and aisle guardrail before formal platform is in place；
2) installation of boiler internal equipment:
Internal unit includes boiler grate, water-cooling system, drum, superheater and economizer, two incinerators is arranged in boiler, often
Six incineration furnace grate components of platform furnace are divided into dry fire grate, burning fire grate and burn-out grate；Fin panel casing is hung by header
Device is suspended on steelframe top beam；Mark reference line in length and breadth on drum and determine elevation line and center line, checked before lifting by crane wirerope,
Snap ring etc. plays the safety of hoisting rig, fills in cork when drum lifts by crane at bundle rope, and coiled pipe first carries out logical ball examination when combining installation
It tests, header centering is fixed, and installs remaining pipe row after benchmark coiled pipe centering is fixed again, remaining pipe row is welded solid based on prover pipe
It is fixed, after whole coiled pipe levelling capturings, combination installation positioning plate, after cut off interim reinforcing bar；
3) installation of rain-proof shelter:
Rain-proof shelter according to 2/3 point two sections after stokehold 1/3, furnace in ground overall package, ground in advance group to and with rubber-tyred automobile
Lifting is in place；
4) hydraulic boiler set:
The pressure monitor of the water pressure test selects pressure gauge, and pressure gauge setting is in drum and boosting pump discharge, and upper water is forward and backward and boiler
The amount of deflection of record boiler girder is measured during water pressure test buck, while measuring the buck of expansion record and the water pressure test
Power, time take safeguard measure after hydraulic boiler set is qualified；
5) furnace brickwork:
Igniter is placed vertically on the ground, and formwork is installed again after pouring；
6) it dries, boil furnace steam tightness test:
When baker, using being interrupted upper water, when upper water, closes economizer recycle valve for upper water, is then turned on after upper water, water medicine in boiler
Mixed base boiling boiler closes all drum valves when soda boiling other than instrument connection valve and exhaust valve；
7) safe trial operation.
In the construction method of installation step 1), before the steelframe welding, the straightness of steel column is first checked, scene is to steel
Column straightness is corrected processing, the datum grade by each column+1m relief of measurement when installation, as boiler component installation
Point, when column is in place, cross centre line of the cross centre line on the basis of on bottom plate matches, after column is in place, first spot welding
Fix and tense the jack hung on cable wind rope, can loose hook, crossbeam is located on bracket, and every layer of steelframe is after the installation is completed, right
The verticality of column and each spacing dimension carry out centering；The platform staircase is synchronous with steelframe lifting to carry out, and guarantees each
The staircase of interlayer is connected to, and when stage+module, all railing junctions polish smooth after welding, mopping.
In the construction method of installation step 2, it is disposed with shear knife on the burning fire grate, facilitates the burning of material, furnace
Line up it is ladder-like arranged along stokehold rear direction, it is 15000mm layers corresponding that drying oven row is arranged in boiler steel trestle X3--X4,
Combustion furnace row is arranged in that boiler steel trestle X4--X5 is 12330mm layers corresponding, and the burn-out grate is arranged in boiler steel frame
Column X5--X6 is 9460mm layers corresponding；
The water-cooling system uses fin panel casing, and water-cooling wall group clock synchronization manhole door, seal box, buckstay, header are with membrane wall
On ground, fragment group detects a flaw in proportion to simultaneously butt welding mouth, and pipe row's mouth deviation is corrected by groove pipe cutting machine, after fragment group is to qualification,
Pipe carries out purging and through ball test, erecting by overhang are first mounted on steelframe, and header junction sets the installation survivor of a murder attempt, and membrane wall is being hung
Passed examination suspension arrangement before filling, using the suspension centre being temporarily arranged on steelframe top beam when lifting, lifting according to upper and lower, preceding, top,
Side, after sequence lifting it is in place and closed up, piece；
When benchmark coiled pipe is installed, inspection coiled pipe docks fixed and length of the header center away from snakelike tube end with header tube head
Deviation is spent, top is fixed temporarily guarantee spacing with reinforcing bar, and adjustment pipe row spacing, longitudinal separation, levelness and verticality are cut off and faced
When reinforcing bar after, check direction, position and the firmness of shield watt, when lifting discharges into row temperature pier to pipe, and shoe reserves
The expansion clearance of joint.
In the construction method of installation step 4), the pressure gauge that the pressure gauge selects two pieces of precision to be not less than 1.5 grades, water
Pressure test water is the demineralized water of ammonification and hydrazine, water quality indicator are as follows: chloride ion content is less than 0.2mg/L, hydrazine or acetoxime
Content is 200~300mg/L, pH value is 10~10.5, and hydraulic pressure regional environment temperature is at 5 DEG C or more, and water temperature is maintained in drum
Discharge index between 20 DEG C~70 DEG C, after the neutralization of water pressure test sewage are as follows: pH value is 6~9, COD content < 100mg/L, hangs
Floating object < 50mg/L.
In the construction method of installation step 6), when with timber baker, the high outlet air of a layer thickness is spread in the upper surface of fluidized bed
The particle of cap 200mm puts wood ignition baker in the cinder bottom material of 3~10mm, opens simultaneously air-introduced machine damper, makes pot
Furnace gravity-flow ventilation；Boiling out with alkaline is in order to remove boiler oil, grease and iron rust internal in manufacture, transport, installation process, soda boiling
Shi Dantai boiler dosage is each 3~5 kilograms of every cube of water adding sodium hydroxide NaOH and tertiary sodium phosphate Na3PO4.12H2O, two kinds
Drug uses simultaneously, and drug dosage is calculated by 100 ﹪ purity.
The beneficial effects of the present invention are:
1) combined platform is flexibly used, temporary ladder, aisle guardrail and temporary platform, membrane wall group is rationally made and scaffold is adopted
With hoistable platform and simple rack, reduce amount of high-altitude operation, fully consider the recycling of means materials, improves production work
Skill reduces engineering cost, improves work efficiency, and shortens the duration.
2) the straight section buckstay on membrane wall is with the welding of membrane wall ground, enhances the rigidity of membrane wall, when lifting
It is not required to excessive reinforcing, is easy to lift, reduces high altitude operation while guaranteeing quality safety, shortens the duration, nozzle is inclined
Difference is cut using groove pipe cutting machine, convenient and efficient, ensure that construction quality.
3) general plan assembly lifting place, each working procedure of overall arrangement boiler erection, it is ensured that critical process, concentration are hung
Dress, reduces machinery expenses, ensure that construction quality.
Detailed description of the invention
Fig. 1 is construction method of installation precedence diagram of the invention.
Specific embodiment
Embodiment: referring to Fig. 1, a kind of stoker fired grate formula garbage burning boiler construction method of installation, the specific steps of which are as follows:
Preparation of construction:
1) boiler component equipment unpacking inspection:
According to packing list, the arrival quantity and specifications and models of verifying apparatus and attachment check equipment in manufacture transportational process
Defect, and be corrected repairing；Received equipment and material will be carried out a point library, subregion keeping by keeping grade, guarantee equipment
And material is intact.
2) boiler foundation repetition measurement unwrapping wire:
Basis is checked according to basic record of acceptance, checks orientation axis and manufacturer's building standard point, it is basic according to boiler steel frame,
The reference line in length and breadth and absolute altitude for selecting benchmark steelframe carry out unwrapping wire；When basic unwrapping wire, backfill is not higher than reference line, in order to avoid influence to put
Line.
3) configuration and installation of parallels:
Before steelframe lifting is in place, basis is cleaned out, and measures the reality of each basic top surface one by one with level according to absolute altitude datum mark
Border absolute altitude, while 1m elevation line actual height below in each column is measured, it calculates between each column bottom plate and basis
Parallels thickness.
Before steelframe lifting, surface of base all gets pitted skin, places chipping at parallels and arranges parallels, each column underlay
The pressure-bearing gross area of iron is calculated by design load, and the unit area bearing capacity of parallels is not more than basic engineering strength grade of concrete
60%, when parallels group is placed on the basis of mixed pan soil, area is calculated by approximate formula: A=C [106 (Q1+Q2)/R, A- pad in formula
Untouchable long-pending mm2；C- safety coefficient, using 1.5~3；The weight of Q1- equipment etc. is added in the load N in the parallels group；Q2- lower margin
Bolt Tightening Force, using the license tensile strength of foundation bolt；The compression strength of pan soil is mixed on the basis R-, is designed and is marked using mixed pan soil
Number Pa.
Construction method of installation:
1) preparation and production of auxiliary tool:
Auxiliary tool includes steelframe, platform staircase, temporary ladder, aisle guardrail, temporary platform, temporary platform guardrail, scaffold
Hoistable platform and simply displaceable bracket, steelframe when ground is combined, the position of platform support steel frame column surface or
Lapping plate, production temporary ladder and aisle guardrail before formal platform is in place need to be welded and be pasted to side, steel frame column segmentation docking.
Before steelframe welding, the straightness of steel column is first checked, on the adjacent two sides center line of steel column, every end welds one
Root angle clip is to draw steel wire according to support with angle steel, makes steel wire position being equidistant far from both ends steel column side, then every with ruler
Be spaced the distance of 1m measuring steel wire to column side, obtain straightness of the column on the side, measured side perpendicular to ground,
Influence of the steel column self weight to straightness is avoided, repeats the above steps and measures the straightness of another side.
Scene is corrected processing to steel column straightness, and cold school method is corrected on alignment frame with jack, can only
Component to section girth less than 800mm has better effects, and the metallographic structure after steel column correction does not change, and load-bearing capacity does not have
There is reduction；Hot school method is to carry out local heating, heating part specific elongation, and non-elongated portion to component using oxygen acetylene flame
Point there is pressure to elongated portion, therefore the length of elongated portion elongation is than short under the effect of no pressure, when heating part is extensive
After multiple room temperature, because its length is more shorter than before heating, huge pulling force is generated, so that component be made to deform, heating temperature must not
More than 700oC, the metallographic structure at element heats is otherwise easily caused to change, heated length is 400 ~ 500mm, heats position
It is the biggish sectional alignment of deformation length at crooked position radians.
By the fiducial mark high point that each column+1m relief of measurement is installed as boiler component, the lifting point of steel frame component
Meet steelframe to deform in elastic range during lifting, checks that whether there is or not solder skip position, ladder lifting lugs, handrail for steelframe before lifting by crane
Whether equal attachmentes welding is secured, and correctly Lifting slings whether there is or not damage, whether, can lift by crane after inspection is errorless if putting by cable rope, stands
When column is in place, two to four manpowers help column to keep it steady, accurate, adjust column using hammer, crowbar, make in the cross on bottom plate
Cross centre line of the heart line on the basis of matches, and after column is in place, the jack hung on cable wind rope is fixed and tensed in first spot welding,
It can loose hook.
Crossbeam is located on bracket, and opening between column and beam reserves 2~4mm of welding contracted quantity at grade size, much weldering or
Solder skip installs crossbeam, support of hanging down when column has into little framework, cable rope of loosening after formation rock-steady structure, horizontally-supported and fortune
It is identical to turn layer frame construction, interts in column, crossbeam, vertical support installation process and carries out.
After the installation is completed, the verticality of column and each spacing dimension carry out centering to every layer of steelframe；Verticality along x, y at
90 ° of measurements are adjusted, when carrying out accurate adjustment, position deviation and absolute altitude are used by binding cable wind rope on top along furnace surrounding
Jack, crowbar adjust, the jack adjustment on verticality cable rope；Verticality theodolite, line pendant are carried out from both direction
Detection, when steelframe assembles, the left and right sides is synchronous alternately, carries out the work for lifting steelframe incessantly.
Platform staircase is synchronous with steelframe lifting to carry out, the connection of the staircase of each interlayer, when stage+module, all railing junctions
It is polished smooth after welding, mopping.
2) installation of boiler internal equipment:
Internal unit includes boiler grate, water-cooling system, drum, superheater and economizer, installs two incinerators in boiler, often
Six incineration furnace grate components of platform furnace are divided into dry fire grate, burning fire grate and burn-out grate；Shearing is disposed on burning fire grate
Knife facilitates the burning of material, and fire grate is arranged along stokehold rear direction into a ladder, and the drying oven row is arranged in boiler steel trestle
X3--X4 is 15000mm layers corresponding, and it is 12330mm layers corresponding that combustion furnace row is arranged in boiler steel trestle X4--X5, described
It is 9460mm layers corresponding that burn-out grate is arranged in boiler steel trestle X5--X6；The basis scribing line of fire grate is first carried out before lifting, and
It plans that place configures lifting machine, welds limited block in advance convenient for fire grate centering.
Water-cooling system uses fin panel casing, and water-cooling wall group clock synchronization manhole door, seal box, buckstay, header are with membrane wall
On ground, fragment group detects a flaw in proportion to simultaneously butt welding mouth, and for membrane wall pipe row's mouth of factory not at same end face, pipe arranges mouth deviation
It is corrected by groove pipe cutting machine, guarantees groove and group to quality.
Fin panel casing is suspended on steelframe top beam by header erecting by overhang, and erecting by overhang is mounted on steelframe, header
Junction sets the installation survivor of a murder attempt, and for membrane wall before lifting, suspension arrangement is qualified on inspection, the connection such as lifting lug, sunpender, platform sling and pin shaft
Securely, welding procedure meets design requirement, and hoisting machine tool does load test, and use state is good, various hoisting rigs such as steel wire
Rope, snap ring are done checks verification comprehensively, it is ensured that the safety of lifting.
When fin panel casing lifts, using the suspension centre being temporarily arranged on steelframe top beam, after water-cooling wall fragment group is to qualification,
Pipe carries out purging and through ball test, is lifted after qualified with truck crane and chain block chain, every is hung with two 5 tons of chain blocks
Hang, lifting according to upper and lower, preceding, top, side, after sequence；When water-cooling wall centering, using the vertically and horizontally center line of furnace roof plate-girder as base
Directrix, it is ensured that the relative position in length and breadth of each heating surface upper header, the point on the basis of the 1m elevation line of steel frame column, measurement respectively by
The absolute altitude of hot face part, when sunpender fastens, sharing of load is uniform, and sunpender is vertically without deflection.
Lifting is in place and is closed up, piece, and water-cooling wall lower header centering is reinforced, and splices each tube panel and quadrangle, and quadrangle is closed
When holding together piece, upper, middle and lower many places are divided to check burner hearth size in length and breadth, water-cooling wall piece welding workload is larger, and every piece is double
Face welding, it is ensured that welding is not leaked tightly, installs sealing element everywhere, splicing gap is uniform, smooth between each tube panel.
Drum marks in length and breadth that reference line is to determine elevation line and center line, before drum lifting, checks that wirerope, snap ring etc. rise
Hoisting rig fills in cork at the bundle rope of drum.
Coiled pipe first carries out through ball test when combining installation, and header centering is fixed reference for installation coiled pipe, benchmark
In coiled pipe installation, going through coiled pipe, that the length of situation and header center away from snakelike tube end is docked with header tube head is inclined
Difference installs remaining pipe row again after benchmark coiled pipe centering is fixed, remaining pipe is arranged based on prover pipe, and fixed a piece of welding is a piece of,
Top is fixed temporarily guarantee spacing with reinforcing bar, and adjustment pipe arranges spacing, longitudinal separation, levelness, verticality, and whole coiled pipes are levelling
After centering, combination installation positioning plate cuts off interim reinforcing bar, and check direction, position and the firmness of shield watt, to pipe when lifting
Row temperature pier is discharged into, shoe reserves the expansion clearance of joint, do not leak tightly at firm welding, smooth, sealing.
3) installation of rain-proof shelter:
Rain-proof shelter is divided to two sections of ground overall packages by after stokehold 1/3, furnace 2/3, and group is lifted to rubber-tyred truck crane in advance on ground
In place.
4) hydraulic boiler set:
The purpose of water pressure test is the welding quality for examining boiler heating surface, and boiler structure, material meet hydraulic test pressure, to protect
Demonstrate,proving boiler can long-term, stable operation；Washing pressure tests interim pipeline, and the pressure monitor of the water pressure test selects two pieces of precision not low
In 1.5 grades of pressure gauge, it is mounted on drum and boosting pump discharge, the water pressure test is the demineralized water ammoniated with hydrazine, drug with water
Chemical examination is qualified, water quality indicator are as follows: it is 200~300mg/L, pH value that chloride ion content, which is less than 0.2mg/L, hydrazine or acetone oxime content,
It is 10~10.5, hydraulic pressure regional environment temperature is at 5 DEG C or more, and water temperature is maintained between 20 DEG C~70 DEG C in drum, the water pressure test
Discharge index after sewage neutralization are as follows: pH value is 6~9, COD content < 100mg/L, suspended matter < 50mg/L；On measurement record
The forward and backward amount of deflection with boiler girder during hydraulic boiler set buck of water, while measuring expansion record and the water pressure test
Lifting pressure, time take safeguard measure after hydraulic boiler set is qualified.
5) furnace brickwork:
Igniter is placed vertically in advance on ground, and formwork is installed again after pouring, it is ensured that pouring quality.
6) it dries, boil furnace steam tightness test:
Oven drying temperature is controlled when baker, when with timber baker, is higher by blast cap 200mm or so in the upper surface of fluidized bed paving a layer thickness
Particle in the cinder bottom material of 3~10mm, prevent from burning out or blocking blast cap openning, then put wood ignition baker, beat simultaneously
Air-introduced machine damper is opened, boiler gravity-flow ventilation is made；Water is using being interrupted upper water on drum, and when upper water closes economizer recycling
Valve is then turned on after upper water, according to water pipe is promptly unloaded by water on drainage pump when baker, opens economizer water supply recycling, no
It is then ordinary water level in drum, it is anhydrous in economizer.
The adiabatic membrane for thering is one layer of very thin oil, oil membrane and its decomposed substance to be formed on the heating surface of boiler, it is serious to block
Quick transmitting of the heat from metal to medium rises metal wall temperature, causes boiler tube overheat and bulge, seriously causes booster,
Boiling out with alkaline is in order to remove boiler oil, grease and iron rust internal in manufacture, transport, installation process, separate unit boiler when soda boiling
Dosage is each 3~5 kilograms of every cube of water adding sodium hydroxide NaOH and tertiary sodium phosphate Na3PO4.12H2O, and two kinds of drugs make simultaneously
With drug dosage is calculated by 100 ﹪ purity, is boiled furnace and is taken following measure: when dosing and boiling in furnaceman's work in professional's guidance
Supervision is lower to be carried out, and enough labor protection articles is equipped with, to prevent drug from hurting sb.'s feelings；Between boiling the furnace period, heat is checked according to each boost value
Expansion status notes abnormalities and checks reason, can continue to boost after elimination, and safety valve must not be adjusted between the furnace period by boiling；It is removed when soda boiling
Other than instrument connection valve and exhaust valve, all drum valves are closed.
7) safe trial operation.
The main mechanical that the present invention constructs: 25t truck crane 1,50t truck crane 1,260t truck crane 1,24t
Flat arm hangs 1 and 400t crawler crane 1.
Major quality controlling position in boiler erection:
Encapsulation process: positive pressure is higher in burner hearth, and back-end ductwork negative pressure is higher, takes seal approach:
1) piece sealing welding；
2) expansion joint is installed；
3) sealing of furnace roof pours processing.
Wear-resistant Treatment: the wear-resisting property of boiler is improved, wear-resisting measure is taken:
1) wear-resistant castable；
2) on heating surface anti-abrasive coatings protection；
3) reinforcement for controlling butt weld is avoided generating being vortexed and be washed away；
4) abrasion-proof cover plate is installed；
5) construction of abrasionproof refractory layer uses cast-in-place method in separator；
6) flatness for improving pipe row avoids individual tubes prominent, causes erosive wear.
Energy conservation and environmental protection measure:
1) since production scene is all open work, outdoor work strong wind fugitive dust is more, and construction site is equipped with dedicated sprinkling water pipe,
If special messenger sprinkles water in time, cleans, reducing fugitive dust, timing cleans site road, reduces dust on the roads.
2) recyclable nontoxic waste, recyclable poisonous waste should carry out at recycling according to the rules
Reason, such as welding wire, the welding rod provided in construction are recycled, by portable two barrels, (one barrel is used in operation process
Put finished product, another barrel of recycling discard electrode), discard electrode is just put into carrying recycling keg conveniently being often finished a welding rod, is led to
It is uniformly processed after crossing classification recycling, it is not only energy saving in this way, but also it is conducive to the environmental protection of construction site；The chemical products such as paint are wanted
It asks: preventing from revealing, various gas cylinders: oxygen, acetylene, poisonous and harmful, flammable explosive gas are equipped with bump protection ring and valve protection cap, acetylene memory
Acetone etc. is put, equipment is overhauled in time, is replaced gasket, is avoided oil leak, unified to the waste oil of replacement to be recycled.
3) noise reduction is formulated in accordance with " People's Republic of China's construction site noise level limit " GB12523-90 in construction site
System carries out noise reduction measure and management to artificial construction noise, and carries out strict control, reduces noise to the maximum extent and disturbs
The people；When carrying out x-ray flaw detection, ray operating personnel requires to carry ray alarm, prevents by ray damage, while to spy
Hurt zone isolation, sets warning line, alarm light and special messenger guard.
The stoker fired grate formula rubbish that the present invention is suitable for domestic refuse-burning plant separate unit day processing rubbish 500t/d or so is burnt
The installation of burning boiler, this method is economical and practical, shorten the construction period, guarantees quality, improves productivity and economic benefit.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, it is all
It is any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the invention, still falls within
In the range of technical solution of the present invention.
Claims (5)
1. a kind of stoker fired grate formula garbage burning boiler construction method of installation, the specific steps of which are as follows:
Preparation of construction:
1) boiler component equipment unpacking inspection:
According to packing list, the arrival quantity and specifications and models of verifying apparatus and attachment check equipment in manufacture transportational process
Defect, and be corrected repairing；
2) boiler foundation repetition measurement unwrapping wire:
Basis check, checks orientation axis and manufacturer's building standard point, according to boiler steel frame basis, selects the base in length and breadth of benchmark steelframe
Directrix and absolute altitude carry out unwrapping wire；
3) configuration and installation of parallels:
Calculate the parallels thickness between each column bottom plate and basis, surface of base all gets pitted skin, places at parallels chipping simultaneously
Arrange parallels；
Construction method of installation:
1) preparation and production of auxiliary tool:
Auxiliary tool includes steelframe, platform staircase, temporary ladder, aisle guardrail, temporary platform, temporary platform guardrail, scaffold
Hoistable platform and simply displaceable bracket, for steelframe when ground is combined, the surface of steel frame column, steelframe is arranged in platform support
Column segmented welding and intermediate setting fishplate bar, production temporary ladder and aisle guardrail before formal platform is in place；
2) installation of boiler internal equipment:
Internal unit includes boiler grate, water-cooling system, drum, superheater and economizer, two incinerators is arranged in boiler, often
Six incineration furnace grate components of platform furnace are divided into dry fire grate, burning fire grate and burn-out grate；Fin panel casing is hung by header
Device is suspended on steelframe top beam；Mark reference line in length and breadth on drum and determine elevation line and center line, checked before lifting by crane wirerope,
Snap ring etc. plays the safety of hoisting rig, fills in cork when drum lifts by crane at bundle rope, and coiled pipe first carries out logical ball examination when combining installation
It tests, header centering is fixed, and installs remaining pipe row after benchmark coiled pipe centering is fixed again, remaining pipe row is welded solid based on prover pipe
It is fixed, after whole coiled pipe levelling capturings, combination installation positioning plate, after cut off interim reinforcing bar；
3) installation of rain-proof shelter:
Rain-proof shelter according to 2/3 point two sections after stokehold 1/3, furnace in ground overall package, ground in advance group to and with rubber-tyred automobile
Lifting is in place；
4) hydraulic boiler set:
The pressure monitor of the water pressure test selects pressure gauge, pressure gauge setting in drum and boosting pump discharge, measurement record upper water before,
Afterwards with the amount of deflection of boiler girder during hydraulic boiler set buck, while measure expansion record and the water pressure test buck
Power, time take safeguard measure after hydraulic boiler set is qualified；
5) furnace brickwork:
Igniter is placed vertically on the ground, and formwork is installed again after pouring；
6) it dries, boil furnace steam tightness test:
When baker, using being interrupted upper water, when upper water, closes economizer recycle valve for upper water, is then turned on after upper water；Water medicine in boiler
Mixed base boiling boiler closes all drum valves when soda boiling other than instrument connection valve and exhaust valve；
7) safe trial operation.
2. stoker fired grate formula garbage burning boiler construction method of installation according to claim 1, it is characterised in that: the peace
Fill construction method step 1) in, before the steelframe welding, first check the straightness of steel column, scene carries out school to steel column straightness
Positive processing, by each column+1m relief of measurement when installation, as the fiducial mark high point of boiler component installation, when column is in place,
Cross centre line of the cross centre line on the basis of on bottom plate matches, and after column is in place, first spot welding is fixed and tensed and hangs over
Jack on cable wind rope, can loose hook, crossbeam is located on bracket, every layer of steelframe after the installation is completed, the verticality of column and
Each spacing dimension carries out centering；The platform staircase is synchronous with steelframe lifting to carry out, and guarantees the staircase connection of each interlayer,
When stage+module, all railing junctions polish smooth after welding, mopping.
3. stoker fired grate formula garbage burning boiler construction method of installation according to claim 1, it is characterised in that: the peace
Fill construction method step 2) in, it is disposed with shear knife on the burning fire grate, facilitates the burning of material, fire grate is into a ladder along furnace
Front-rear direction arrangement, drying oven row are arranged in that boiler steel trestle X3--X4 is 15000mm layer corresponding, and the combustion furnace is arranged
Set 12330mm layers corresponding in boiler steel trestle X4--X5, it is corresponding that the burn-out grate is arranged in boiler steel trestle X5--X6
9460mm layers；
The water-cooling system uses fin panel casing, and water-cooling wall group clock synchronization manhole door, seal box, buckstay, header are with membrane wall
On ground, fragment group detects a flaw in proportion to simultaneously butt welding mouth, and pipe row's mouth deviation is corrected by groove pipe cutting machine, after fragment group is to qualification,
Pipe carries out purging and through ball test, erecting by overhang are first mounted on steelframe, and header junction sets the installation survivor of a murder attempt, and membrane wall is being hung
Passed examination suspension arrangement before filling, using the suspension centre being temporarily arranged on steelframe top beam when lifting, lifting according to upper and lower, preceding, top,
Side, after sequence lifting it is in place and closed up, piece；
When benchmark coiled pipe is installed, inspection coiled pipe docks fixed and length of the header center away from snakelike tube end with header tube head
Deviation is spent, top is fixed temporarily guarantee spacing with reinforcing bar, and adjustment pipe row spacing, longitudinal separation, levelness and verticality are cut off and faced
When reinforcing bar after, check direction, position and the firmness of shield watt, when lifting discharges into row temperature pier to pipe, and shoe reserves
The expansion clearance of joint.
4. stoker fired grate formula garbage burning boiler construction method of installation according to claim 1, it is characterised in that: the peace
Fill construction method step 4) in, the pressure gauge that the pressure gauge selects two pieces of precision to be not less than 1.5 grades, water pressure test water is to add
The demineralized water of ammonia and hydrazine, water quality indicator are as follows: chloride ion content be less than 0.2mg/L, hydrazine or acetone oxime content be 200~
300mg/L, pH value be 10~10.5, hydraulic pressure regional environment temperature at 5 DEG C or more, in drum water temperature be maintained at 20 DEG C~70 DEG C it
Between, the discharge index after the neutralization of water pressure test sewage are as follows: pH value is 6~9, COD content < 100mg/L, suspended matter < 50mg/L.
5. stoker fired grate formula garbage burning boiler construction method of installation according to claim 1, it is characterised in that: the peace
Fill construction method step 6) in, when with timber baker, exist in the particle that the upper surface of fluidized bed paving a layer thickness is higher by blast cap 200mm
The cinder bottom material of 3~10mm, puts wood ignition baker, opens simultaneously air-introduced machine damper, makes boiler gravity-flow ventilation；Soda boiling
Furnace is in order to remove boiler oil, grease and iron rust internal in manufacture, transport, installation process, separate unit boiler dosing when soda boiling
Amount is each 3~5 kilograms of every cube of water adding sodium hydroxide NaOH and tertiary sodium phosphate Na3PO4.12H2O, and two kinds of drugs use simultaneously,
Drug dosage is calculated by 100 ﹪ purity.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110440272A (en) * | 2019-08-09 | 2019-11-12 | 湖南省工业设备安装有限公司 | A kind of incinerator installation method |
| CN111368357A (en) * | 2019-12-31 | 2020-07-03 | 中国能源建设集团东北电力第一工程有限公司 | Construction method for optimizing construction safety of incinerator |
| CN111396881A (en) * | 2020-03-30 | 2020-07-10 | 济源霖林环保能源有限公司 | Construction and installation method of garbage incinerator |
| CN111594841A (en) * | 2020-04-29 | 2020-08-28 | 中国电建集团河南工程有限公司 | Reverse-pushing mechanical grate garbage incinerator installation construction method |
| CN111853736A (en) * | 2020-07-18 | 2020-10-30 | 四川华川基业建设集团有限公司 | Construction process for alkali furnace installation project |
| CN111928218A (en) * | 2020-06-08 | 2020-11-13 | 五冶集团上海有限公司 | 500m2Sintering plant waste heat boiler installation construction method |
| CN112128777A (en) * | 2020-09-22 | 2020-12-25 | 中国电建集团江西省电力建设有限公司 | Mechanical reciprocating type multi-stage grate overhauling construction method |
| CN113357664A (en) * | 2021-07-02 | 2021-09-07 | 河南省安装集团有限责任公司 | Boiler membrane type water-cooled wall elevation adjusting hanging device and using method thereof |
| CN114161051A (en) * | 2021-11-11 | 2022-03-11 | 河南沃克曼建设工程有限公司 | Vertical boiler foundation construction combined platform and construction method for waste incineration power plant |
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| CN110440272A (en) * | 2019-08-09 | 2019-11-12 | 湖南省工业设备安装有限公司 | A kind of incinerator installation method |
| CN111368357A (en) * | 2019-12-31 | 2020-07-03 | 中国能源建设集团东北电力第一工程有限公司 | Construction method for optimizing construction safety of incinerator |
| CN111396881A (en) * | 2020-03-30 | 2020-07-10 | 济源霖林环保能源有限公司 | Construction and installation method of garbage incinerator |
| CN111396881B (en) * | 2020-03-30 | 2022-04-01 | 焦作市绿鑫城发有限公司 | Construction and installation method of garbage incinerator |
| CN111594841B (en) * | 2020-04-29 | 2022-06-14 | 中国电建集团河南工程有限公司 | Reverse-pushing mechanical grate garbage incinerator installation construction method |
| CN111594841A (en) * | 2020-04-29 | 2020-08-28 | 中国电建集团河南工程有限公司 | Reverse-pushing mechanical grate garbage incinerator installation construction method |
| CN111928218A (en) * | 2020-06-08 | 2020-11-13 | 五冶集团上海有限公司 | 500m2Sintering plant waste heat boiler installation construction method |
| CN111853736A (en) * | 2020-07-18 | 2020-10-30 | 四川华川基业建设集团有限公司 | Construction process for alkali furnace installation project |
| CN111853736B (en) * | 2020-07-18 | 2021-06-04 | 四川华川基业建设集团有限公司 | Construction process for alkali furnace installation project |
| CN112128777A (en) * | 2020-09-22 | 2020-12-25 | 中国电建集团江西省电力建设有限公司 | Mechanical reciprocating type multi-stage grate overhauling construction method |
| CN112128777B (en) * | 2020-09-22 | 2023-04-07 | 中国电建集团江西省电力建设有限公司 | Mechanical reciprocating type multi-stage grate overhauling construction method |
| CN113357664A (en) * | 2021-07-02 | 2021-09-07 | 河南省安装集团有限责任公司 | Boiler membrane type water-cooled wall elevation adjusting hanging device and using method thereof |
| CN113357664B (en) * | 2021-07-02 | 2024-05-07 | 河南省安装集团有限责任公司 | Boiler membrane water wall elevation adjustment hanging device and application method thereof |
| CN114161051A (en) * | 2021-11-11 | 2022-03-11 | 河南沃克曼建设工程有限公司 | Vertical boiler foundation construction combined platform and construction method for waste incineration power plant |
| CN114161051B (en) * | 2021-11-11 | 2024-02-13 | 河南沃克曼建设工程有限公司 | Combined platform and method for vertical boiler foundation construction of garbage incineration power plant |
| CN115405929A (en) * | 2022-09-13 | 2022-11-29 | 河南省安装集团有限责任公司 | Synchronous baking and boiling method for household garbage incinerator |
| CN115405929B (en) * | 2022-09-13 | 2024-05-31 | 河南省安装集团有限责任公司 | Synchronous baking and boiling method for household garbage incinerator |
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