Before construction, want the construction appliance such as microscope mould to whether accord with use requirement, of equipment nail except net of rust, turtleback, anchorage solid solder installation is eligible. All be all set, just can consult method of the following construction undertakes construction.
A, wear-resisting is fireproof kind but plastic construction is normative
(1) general principles:
A. Suitable scope:
This standard applies to CFB boiler to use liner data, there is similar case to also can use this data in furnace of industry of other chemical industry.
B. The respect such as the safe technology when the construction of this material, labor protection must accord with the requirement of concerned regulation.
(2) of material pack reach a note
A. But plastic use phosphoric acid aluminium to combine alumina clinker and exceed fine pink kind group burden. Phosphoric acid aluminous bond, hurried coagulates agent and additive requirement spot are joined.
B. Can pack plasticly
① but plastic pink makings uses textile bag, weight is 25kg/ bag. But plastic use plastic bucket to pack with bond, weight is 40kg/ bucket, but plastic coagulate with hurried the agent already divided pouch to pack, use textile bag to always be packed, and mention expressly on bag but plastic coagulate with hurried agent.
② usage: 1 bag but plastic pink makings makes up agent of 1 pouch solidify.
C. The construction quality of material is in charge of by construction unit (include this factory construction) , this factory offers material to use a requirement to reach concerned note.
D. Material is being carried, in process of keep in storage, forbidden drench be affected with damp be affected with damp, especially material hurried coagulates agent should appropriate is custodial.
E. Material deserves to compare: Material is approved by same type group, every batches do not exceed 50 tons, remnant expects to other group answers to approve when change.
F. Material sampling: Same sampling of the random in approving a product 5 bags of not less than material, mix 5 bags of material together mix even, take by quartation expect 5 kilograms make sample undertake detecting.
(3) material sample makes law of the proved recipe that reach check be as follows:
A. Make appearance press GB/T5202-93 " compact and fireproof pouring makings consistency determines and sample preparation method " undertake.
B. Bulk density presses GB/T5200-93 " compact and fireproof pouring makings apparent pore is led and method of bulk density experiment " undertake.
C. Compression intensity, fight fold intensity to press GB/T5201-93 " compact and fireproof pouring material normal temperature is fought change method of intensity and pressure test of normal temperature compression " undertake.
D. Ratio of change of the line after burning presses GB/T5203-93 " compact and fireproof pouring method of experiment of ratio of makings line change " undertake.
E. Wear-resisting function test block makes method and test undertake by ASTM704C.
F. Test block of thermal shock stability makes method and test undertake by D/N51068.1.76.
(4) the note before material construction
A. This material is used forced mixer agitate.
B. The preparative work related construction must be completed before material construction, deploy necessary construction machines and tools according to different construction method.
C. Concerned personnel should be organized to undertake to take cover engineering overall quality inspection is checked and accept before construction, wait for affirm qualification is rear but construction.
D. Should clear before construction construction site, prevent sundry in interfuse makings.
E. Construction unit should be nailed to heat preservation with use unit (pin) wait for a system to undertake quality is checked, both sides approves junior travel construction.
F. Before material construction, should nail to heat preservation (pin) a bitumen, ply is 0.5-2mm.
G. Before material construction, the member that answer construction person undertakes grooming, can do prototype test when necessary, need construction person the construction function adroitness to material is rear can undertake construction.
(5) the agitate of material
A. matched stack collect makings, hurried coagulates the agent asks in proportion, agitate color is consistent, rejoin already the phosphatic bond with good metage continues agitate (join first when agitate about the 2/3 bond with good metage) , inspect specific construction to ask to add odd bond again) , can use after mix is even (agitate time is 3-5 commonly minute) .
B. The affiliation of bond can adjust according to the weather variation of the spot and temperature its add a capacity.
C. Construction can be versed in according to applying with makings quantity of personnel more or less adjust with construction schedule.
D. The stuff with good agitate must give out inside 40 minutes, forbidden add phosphatic bond the 2nd times. The makings after coagulating first should abandon need not.
E. The affiliation of bond is measured for 10 ～ 13% (weight is compared) .
(6) the construction of material
A. Temperature of environment of material construction site should be controlled between 10~30 ℃ , 75% winter of humidity ＜ construction environment temperature under the due and proper heat preservation measure when 10 ℃ , prep above of temperature of summertime construction environment when 30 ℃ , should drop in temperature measure, monsoon construction is due the measure that prevent rain.
B. Material pounds the construction that make a way with handiwork
① material handiwork is pounded when hitting, after good agitate stuff is stuck into the group to be filled, should pound more, in order to make its in-house bleb transgression.
When ② material is wiping a face, forbidden good in construction appearance scatters water or other powder.
If ③ equipment lies when buy construction, answer to be able to divide 2-3 valve to undertake construction according to the size of drum diameter, after every valve construction ends, want place 24 hours, wait for the construction that after having enough strength, again rotational equipment undertakes leaving one segment or section.
④ is in below construction before one valve, should the joint face of the stuff with good construction makes wool and already will keep clear of, loose material should be destroyed, water of be soiled of reoccupy lacquer broom tries the construction that wet Fangke undertakes leaving one segment or section.
When ⑤ equipment is like vertical construction, stick material into the group by fall to undertake construction up, if midway interrupts Shi Kegen
The clause that occupy ④ undertakes.
(7) but plastic conserve
But after plastic construction ends, day of natural conserve 1-3 can roast (the material between conserve is forbidden drench water) .
(8) but plastic quality inspection and repair a method
A. But plastic quality inspection
① but after plastic drying, with half pound hammer light clap attacks liner, liner should give out ringing echo, liner is not had loose reach without concave and convex phenomenon.
After ② liner drying, the surface should the level off, face that do not have hemp, without apparent crackle.
B. Can repair a method plasticly
When place of blemish of ① liner either undertakes repairing, outside answering to certain liner small inside big state, the least scope that repair includes 5 heat preservation to nail at least (pin) limits (it is 300×300mm at least) , and be in all around with water thoroughly wet.
All mending should use ② and the method with original same construction undertakes.
(9) can check and accept plasticly
But when plastic construction is checked and accept, should submit following technology document:
A. Material qualification certificate
B. Material project test block experiments (test) report (national authority branch detects report)
C. Take cover engineering checks and accept a record
D. Quality inspection and repair a record
1. agitate
① should be used forced mixer is blended, mixer needs to clear beforehand and rinse clean with water, do not get cement of interfuse lime, silt, silicate to wait sundry.
② is mixed according to mixer norms size construction case is mensurable, every time agitate quantity is unfavorable exceed 100kg.
③ will pound dozen of makings each constituent enters mixer, dry mix 3min, add the liquid bond of referenced dosage next, wet mix time is not gotten little at 5min, till blend,expect achieve can use industry rate.
④ agitate pounds dozen of makings well to must be used inside 15min end.
The wet makings that ⑤ has coagulated first must be abandoned, must not add liquid bond agitate to repeat use.
Temperature of ⑥ construction environment should be between 30 ℃ of 10 ～ . When too low or stock temperature and temperature of construction site environment are exorbitant, answer to take relevant step appropriately.
2. daub or pound dozen
① applies man-hour to use mallet or balata mallet is beaten close-grained. Daub or pound when hitting, answer to check liner ply at any time, requirement ply is even, exterior level off. Wipe face giving light with spatula finally. Forbidden surface brushs water, grout or scatter dry cement.
② takes the liner construction of turtleback network structure, fill turtleback net line to expect the area shoulds not be too big every time, should cram chases aperture to pound solid, make liner surface and turtleback net smooth neat. When construction is discontinuous, should will not apply the incomplete makings inside net of industry position turtleback to clear clean.
③ asks according to construction the setting expands seam, expand seam with fireproof fiber fill.
3. conserve
After ① construction ends, natural conserve falls 3 days in normal temperature, forbidden drench water.
Temperature of ② conserve environment should be in as far as possible 20 ℃ above. When environmental temperature under 20 ℃ , should inspect sclerotic condition, extend conserve time appropriately or take other and corresponding step.
4. is roast
① should comply with is concerned warm up the curve undertakes roast, avoid to warm up at high speed, can produce internal damage or blowout otherwise.
② is become when conserve temperature is too low, should lengthen microtherm roast time and rein in warm up speed.
Must keep proper and ventilated when ③ is roast, facilitating moisture eliminates.
④ is in drying-out process, when if have,dropping in temperature, cannot carry fast warm up chase.
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