Yuav ua li cas los tsim lub refractory bricks ntawm lub rhaub?

1. Cov kauj ruam ntawm kev tsim kho yog ua raws li lub hauv paus ntsiab lus ntawm hauv qab mus rau sab saum toj thiab sab hauv mus rau sab nraud. Qhov qis dua ntawm lub nruas sab sauv thiab lub convection tube bundle ncua sij hawm nplaim phaj yog nchuav los ntawm sab saum toj mus rau hauv qab.

2. Cov phab ntsa ntawm lub cub tawg muaj qhov yuav tsum tau ua kom muaj huab cua nruj, thiab qhov ua tiav ntawm cov tshauv pob qij txha: cov cib liab tsis pub tsawg dua 85%; refractory bricks tsis tsawg tshaj li 90%. Txoj kev squeezing yog siv rau liab cib masonry, thiab txoj kev scraping yog siv rau refractory cib masonry.

3. Masonry ntawm qhov cub hauv qab:

(1) Ua ntej lub cub tawg hauv qab yog nteg, lub hauv paus yuav tsum tau leveled, thiab ib puag ncig cov phab ntsa ncaj nraim nyob rau hauv kev sib cuag nrog lub cub tawg hauv qab yuav tsum tau ua ua ntej, thiab qhov siab yuav tsum yog kwv yees li siab tshaj qhov saum npoo ntawm lub cub tawg. Tom qab ntawd kos cov kab kab rov tav ntawm lub qhov cub hauv qab (nyob rau hauv rooj plaub ntawm ntau txheej masonry, ua ke nrog cov txheej txheem ntau lawm) ntawm cov phab ntsa ncaj nraim ua ntej lub cub tawg hauv qab tuaj yeem tsim.

(2) Thaum lub cub tawg hauv qab yog tsim los ntawm ntau txheej ntawm cib, masonry yuav tsum tau nqa tawm txheej txheej, nrog rau sab sauv thiab qis txheej thiab tib txheej ntawm cib staggered, thiab ntev sab ntawm feem ntau nto txheej cib. perpendicular mus rau ntws kev taw qhia ntawm slag los yog roj.

(3) In high-temperature areas and furnace bottoms that often need to be overhauled, an expansion gap should be left at the contact between the furnace bottom and the straight wall, and asbestos rope or pad asbestos board should be embedded in the gap.

4. Masonry of ash bucket (including inclined wall):

(1) Ua ntej tsim lub thoob tshauv, ua ntej nrhiav cov kab rov tav nruab nrab raws li cov duab kos, thiab siv cov kab nruab nrab kab rov tav kom pom cov kab nruab nrab ntev ntawm txhua lub thoob tshauv thiab cov npoo sab nraud ntawm cov phab ntsa hauv pem hauv ntej thiab nram qab ncaj ntawm cov tuab slag. lub thoob, thiab tom qab ntawd pib qhov siab ntawm ob qhov kawg. Npog cov kab ntsug ntsug mus rau hauv qab ntawm cov tshauv hopper, thiab teeb qhov loj me rau hauv qab ntawm cov tshauv hopper. Tom qab popping txoj kab ntsug, siv cov duab peb sab uas tsim tau (ua raws li txoj kab nqes ntawm phab ntsa inclined hauv daim duab), thiab kos rau sab kab ntawm phab ntsa inclined ntawm ob sab ntawm lub hauv paus sawv. Nto. Siv cov khoom siv tib yam ntawm cov pob zeb refractory los ua cov duab peb sab hauv qab ntawm phab ntsa inclined (raws li qhia hauv daim duab 1) thiab theem ntawm phab ntsa ncaj. Daim duab peb sab poob ntawm qhov sib txuas ntawm ntsug, kab rov tav thiab inclined phab ntsa yuav tsum tau nchuav nrog cov pob zeb refractory ntawm tib cov khoom. Txuas mus rau masonry sloping phab ntsa.

(2) Thaum tsim lub thoob tshauv, ua ntej tsim cov kab rov tav thiab tom qab ntawd ntsug; Thaum cov phab ntsa inclined thiab cov phab ntsa ncaj yog tsim, tsim cov phab ntsa ncaj ua ntej thiab tom qab ntawd cov phab ntsa inclined.

(3) Thaum muaj kev txhawb nqa hauv qab ntawm phab ntsa inclined, mortar ntawm qhov chaw sib cuag ntawm cov cib thiab lub hauv paus yuav tsum puv; Thaum cinder, cinder yuav tsum tau compacted.

5. Masonry ntawm cov phab ntsa ncaj:

(1) The straight walls around the boiler are composed of refractory bricks, thermal insulation bricks (or thermal insulation layer), and red bricks. The order of masonry construction is to build refractory bricks first, then thermal insulation bricks (or paste insulation boards or felt), and finally red bricks. For example, when the hot joint between the refractory brick and the red brick is filled, the filler should be filled every 3 to 4 layers of the red brick, and the filling should be dense.

(2) Thaum tsim cov phab ntsa ncaj nraim, nws yuav tsum tau muab tso rau ntawm kaum ntawm phab ntsa ntawm lub qhov cub. Ob qhov kawg ntawm ntu ncaj yuav tsum tau yarded nrog 2 ~ 3 txheej ntawm lub taub hau, thiab kab rov tav yuav tsum tuav. Ua cov pob qij txha ntawm cov pob qij txha, tawm hauv cov pob qij txha txuas rau hauv qhov chaw, dai cov kab txuas ntsug txuas ntxiv asbestos ropes, thiab muab tshuaj txhuam asbestos rau ntawm cov ncej steel façade ua ntej mus rau masonry.

(3) Txoj kev masonry ntawm ncaj phab ntsa masonry yog: 1/2 cib tuab phab ntsa txais staggered pob qij txha thiab 1/2 cib ntev masonry; 1 cib thiab sab saum toj tuab phab ntsa txais ib sab saum toj thiab ib qho ncaj los yog xauv pob masonry txoj kev. Sab saum toj lossis hauv qab txheej ntawm cib ntawm 1 cib thiab 1 cib tuab masonry yuav tsum yog sab saum toj lossis sab masonry.

(4) Thaum ob sab ntawm phab ntsa ntawm lub cub tawg yog cov chaw ua haujlwm (tshwj tsis yog cov phab ntsa uas muaj qhov tuab ntawm 1 cib lossis tsawg dua), ob sab yuav tsum tau muab tso rau tib lub sijhawm.

(5) Lub taub hau ntawm phab ntsa dej txias thiab cov yeeb nkab sab thiab cov zawv zawg ntawm cov yeeb nkab sab uas dhau los ntawm cov masonry yuav tsum tsis raug kho, thiab cov cib tshwj xeeb ntawm lub rub nuv ntawm phab ntsa dej txias yuav tsum tsis txhob cuam tshuam cov pob ntseg phaj ntawm phab ntsa dej txias.

(6) Thaum cov cib refractory thiab cov cib liab tau sib sau ua ke, thaum cov cib refractory tau tsim nrog 6 mus rau 8 txheej ntawm cib qhov siab, txhua 1 mus rau 1.5m raws txoj kab rov tav, 115mm ntev ntev cib yuav tsum tau txuas mus rau sab nrauv phab ntsa. cov cib liab. Tensioned cib yuav tsum tau muab tshem tawm ntawm tib txheej, thiab cov khaubncaws sab nraud povtseg sab sauv yuav tsum tau staggered.

(7) Thaum tsim cov phab ntsa sab nrauv ntawm cov cib liab, qhov vents yuav tsum tau muab, thiab kev faib ntawm qhov chaw tshwj tseg yuav tsum sib npaug. Ib qho tuaj yeem khaws cia ntawm thaj tsam li 2m2 thiab faus nrog DN15 ~ 20 cov kav hlau dub (thaum muaj xwm txheej tsis tuaj yeem, siv qhov tshwj xeeb 60 × 120mm txoj kev). Boilers nrog grate pib teeb thaum lub grate yog ntws; boilers tsis muaj grate yuav tsum tau teem rau ntawm qhov siab ntawm li 1m, thiab qhov siab tshaj plaws ntawm cov rwb thaiv tsev seam yuav tsum tau teem, thiab lub cub tawg yuav tsum tau thaiv nrog kub-resistant cov ntaub ntawv tam sim ntawd tom qab lub qhov cub tiav.

6. Lub masonry ntawm lub cub tawg phab ntsa qhib, tshuaj xyuas qhov, thiab lwm yam. txais yuav cov masonry txoj kev uas cov refractory bricks ntawm lub puab phab ntsa nkag mus rau lub liab cib ntawm lub sab nrauv phab ntsa (saib daim duab 2). Thaum lub sab sauv tsim ntawm lub qhov qhib (qhov) yog yuav tsum tau, lub masonry yuav tsum tau ua raws li qhov yuav tsum tau tsim, thiab thaum tsis tsim nyog, lub masonry yuav tsum tau ua raws li nram no:

(1) Qhov dav ntawm lub qhov (qhov) hauv phab ntsa yog tsawg dua lossis sib npaug li 450mm. Yog tias qhov kev ncua tsis loj, cov txheej txheem txheej txheem txheej txheem tuaj yeem siv los hloov cov koov me me nrog cov txheej cib tiaj tiaj. Txoj kev masonry yog qhia nyob rau hauv daim duab 3. Txhua txheej yuav tsum protrude ≤6mm los ntawm ob sab mus rau hauv lub qhib kom txog rau thaum lub qhib yog them. Lub protruding ntev ntawm txhua txheej thiab tib txheej yuav tsum yog tib yam.

(2) Qhov dav ntawm qhov qhib (qhov) hauv phab ntsa ≤250mm tuaj yeem them los ntawm kev ua cov cib. Txoj kev masonry yog qhia hauv daim duab 4.

(3) Qhov dav ntawm lub qhov hauv phab ntsa> 450mm dav yuav tsum tau them los ntawm arch-rotating masonry.

7. Masonry ntawm arch thiab vault:

(1) The tire mold radius and radian production size required for arch and vault masonry must meet the design requirements. The span of the tire mold is less than the actual span by 20~30mm, the surface is flat and smooth, and it has load-bearing materials and construction loads without deformation Ability.

(2) Before arch masonry, the masonry behind the arch-foot bricks must be completed, and the masonry can only be built after passing the inspection. After the arch-foot bricks, it is not allowed to build heat-insulating refractory bricks or brick algae earth bricks.

(3) Ua ntej lub koov saum toj yog tsim, lub koov ntiv taw thiab cov ncej ncej yuav tsum nyob ze ua ke. Ua ntej nteg lub koov ntawm lub thav duab adjustable, lub thav duab thiab khi rods yuav tsum tau kho thiab ruaj, thiab dhau qhov kev soj ntsuam.

(4) Ua ntej lub arch thiab vault masonry, ua ntej nruab lub log tsheb pwm, xyuas qhov siab thiab txoj hauj lwm, kho nws ruaj khov, thiab tom qab ntawd nqa tawm ua ntej masonry. Lub hom phiaj ntawm pre-masonry yog tsuas yog los kho cov pob qij txha mortar thiab sib sau ua ke cov arch bricks. Ua qauv kom tau raws li qhov yuav tsum tau muaj ntawm arch masonry zoo thiab staggered pob qij txha. Tom qab lub pob zeb cib sib dhos ua tau raws li qhov yuav tsum tau ua, lub ntsej muag cib raug suav nrog raws li qhov kev txiav txim ntawm masonry thiab tom qab ntawd tshem tawm, raws li qhia hauv daim duab 5. Lub masonry yuav tsum tau symmetrically ua los ntawm ko taw mus rau qhov chaw nyob rau tib lub sij hawm. Nws yog txwv tsis pub kom upside down lub masonry.

(5) Tshwj tsis yog muaj cov kev cai tshwj xeeb, cov arches thiab cov vaults yuav tsum tau muab tso rau hauv cov pob qij txha staggered, thiab arches thiab vaults nrog txawv spans tuaj yeem muab tso rau hauv cov nplhaib. Nyob rau hauv cov ntaub ntawv ntawm staggered sib koom masonry, thaum qhov ntev ntawm lub longitudinal sib koom ua ke ntev tshaj 1 meter, lub masonry yuav tsum tau kos nrog ib tug kab.

(6) Xauv bricks yuav tsum tau ntsia rau hauv lub masonry ntawm lub koov thiab vault sab saum toj. Qhov tob ntawm lub pob zeb ua-hauv yog 2/3 ~ 3/4 ntawm lub thickness ntawm lub koov thiab lub vault sab saum toj. Raws li pom hauv daim duab 6, lub xauv qhov tob ntawm tib lub koov yuav tsum yog tib yam. , Thaum xauv rau hauv, nws yuav tsum yog los ntawm lub kaw ntom nti rau lub looser. Nyob rau hauv cov phab ntsa, ob peb arches uas nyob ib sab thiab lub xauv cib ntawm lub arch ru yuav tsum tau tsav nyob rau hauv tib lub sij hawm kom tsis txhob deformation ntawm lub arches nyob ib sab.

(7) Lub ntsuas phoo cib raug faib sib npaug thiab sib npaug. Tsav mus rau hauv ib lub xauv cib rau ncua <3m, thiab tsav 3 xauv cib rau ncua> 3m. Koj tuaj yeem siv lub rauj tsav tsheb thaum nws kaw, tab sis nws yuav tsum tau padded nrog lub rooj ntoo.

(8) Nws tsis raug tso cai siv cov cib uas muaj lub thickness ntau dua 1/3 los yog txiav rau sab ntev los ua kom lub ntsej muag loj rau hauv cov npoo zoo li lub xauv cib.

(9) For the processed bricks that are leveled on the upper part of the arch and the vault, the high temperature area or the surface of the external wall can be leveled by brick processing, and the low temperature area can be leveled by the same material of refractory concrete.

8. Upside-down masonry:

(1) Ob lub qhov rooj sab hauv thiab sab nrauv yog ua thaum tig rov qab-down masonry. Sab hauv arc phaj yog ua raws li lub vojvoog ntawm kev sib hloov; lub sab arc phaj yog ua nrog lub puab vojvoog ntxiv rau lub thickness ntawm lub rotating cib.

(2) Thaum tsim cov kev sib hloov ntawm sab saud, cov kab hauv qab nruab nrab ntawm qhov kev sib hloov yog ua raws li qhov arc-shaped slab, thiab qhov qis yog tsim. Feem ntau, qhov ntev ntawm lub cib tuaj yeem ua tau raws li 5 ~ 7 rotating bricks, ces koj tuaj yeem pib tsim upside down. Tig, thiab ces symmetrically tsim upside down los ntawm qhov chaw ntawm lub hauv qab ntawm lub upside down mus rau ob sab. Tsis txhob ntaus hnyav thaum pib tsim kom tsis txhob hloov pauv lossis xoob. Tom qab 5 ~ 7 bricks tau ua nyob rau hauv qis qis ntawm lub inverted ntsia hlau, lub puab arc-shaped board yog tsau rau saum npoo ntawm lub cib rotating, thiab cov cib yog symmetrically nteg rau ob sab nyob rau hauv kev txiav txim ntawm rotating bricks thiab ces. ua cov cib. Cov txheej txheem masonry yog qhia hauv daim duab 7.

(3) Thaum tig mus rau 1/2 lub voj voog, lub sab sauv 1/2 txais cov koov thiab cov vault masonry. Thaum kaw lub cib, tig lub cib ib ncig ntawm 1/2 ntawm lub siab vector siab thiab ces xauv lub cib tom qab lub masonry tiav, raws li qhia hauv daim duab 8.

9. Masonry ntawm dai cib thiab demolition ntawm nplaim phab ntsa:

(1) Kev dai cib thiab tshem cov nplaim hluav taws ua raws li lub hauv paus ntsiab lus ntawm lub tsev los ntawm qis mus rau qhov siab, los ntawm nruab nrab mus rau ob sab.

(2). When bricks need to be processed for the construction of hanging bricks and flame-removing walls, the clearance of the hanging holes of the hanging bricks shall not be greater than 5mm, and the thickness of the flame-removing walls shall not be less than 90%. There shall be no cracks in the main force-bearing parts of the hanging bricks.

(3) Rau qhov tshwj xeeb-zoo li cib nrog kho qhov ntsia hlau qhov, thawj kab qhuav los ntawm txheej rau kev sim tso, thiab tom qab kos lub qhov ntawm qhov ntsia hlau ntawm cov yeeb nkab, kho bolts tuaj yeem welded. Cov txiv ntseej yuav tsum tsis txhob nruj nruj heev thaum lub sij hawm masonry kom tsis txhob ua puas lub refractory bricks, thiab lub bolts qhov yuav tsum tau sau nrog refractory pob zeb.

10. Lub expansion pob qij txha ntawm lub cub tawg phab ntsa yog sab laug:

(1) Qhov chaw thiab daim ntawv ntawm cov pob qij txha nthuav dav ntawm phab ntsa ntawm lub cub tawg yog ua raws li cov qauv tsim. Qhov dav tsis pub tsawg tshaj li qhov tsim nyog, thiab cov khoom siv tawv xws li cov cib tawg tsis raug tso cai kom poob rau hauv cov pob qij txha. Kev ntim khoom hauv kev sib koom ua ke yog nruj nruj raws li cov qauv tsim. Thaum siv txoj hlua asbestos, thawj tus mus rau nplaim nplaim yuav tsum tau tsau rau hauv cov av nkos refractory.

(2) Water wall pipes, downcomers, headers, sewage pipes, drums, temperature measuring holes (tubes) and beams, etc., through the wall, leave expansion joints at the contact wall and the vertical and horizontal connections of the refractory brick furnace wall. It is better to wind with asbestos rope.

(3) Txoj kev tawm hauv qhov kev nthuav dav ntawm phab ntsa rauv:

①. The method of retaining expansion joints at the corners is shown in Figure 9(a): the method of leaving the junction of 1/2 brick and 1 brick; Figure 9(b): the method of leaving the junction of 1 brick and 1 brick.

②. Cov txheej txheem ntawm kev teeb tsa cov pob qij txha ntawm qhov sib txuas ntawm ob qhov kawg ntawm cov phab ntsa rhuav tshem thiab cov phab ntsa rauv yog qhia hauv daim duab 10.

③. Txoj kev ntsug expansion sib koom ua ke nyob rau hauv nruab nrab ntawm lub qhov cub phab ntsa yog qhia nyob rau hauv daim duab 11.

④. Cov txheej txheem ntawm kev teeb tsa cov pob qij txha ntawm qhov sib txuas ntawm lub ru tsev rauv thiab ob qhov kawg ntawm lub qhov rooj dai thiab cov phab ntsa rauv yog qhia hauv daim duab 12.

⑤ Cov kab rov tav expansion pob qij txha ntawm cov phab ntsa rauv yog feem ntau ua los ntawm cov cib tshwj xeeb. Yog tias tsis muaj cov cib tshwj xeeb, cov qauv qhia hauv daim duab 13 yog siv los ua cov pob zeb. Thaum tso cov kab rov tav expansion sib koom ua ke, cov hlua asbestos yuav tsum tau compressed; Qhov siab ntawm refractory bricks saum toj no kab rov tav expansion sib koom yuav tsum tsis txhob ntau tshaj 1m, thiab refractory cib thiab liab cib yuav sawv alternated los mus tiv thaiv cov asbestos hlua los ntawm compressed thiab ua rau lub cub tawg phab ntsa qaij.

(4) Lub ntsug expansion sib koom ua ke hangs kab rau masonry, tsis ncaj ncees lawm hniav yog tsis ntau tshaj 3 hli, thiab cov asbestos hlua nyob rau hauv lub expansion sib koom ua ke yog me ntsis loj dua qhov seem dav ntawm expansion sib koom los ntawm 3 ~ 5 hli, thiab nws yog nias. nyob rau tib lub sij hawm thaum lub masonry.

11. Refractory bricks thiab thermal rwb thaiv tsev cib tsis tso cai rau ntub cov cib, thiab cov cib liab yuav tsum tau watered kom txog thaum sab nraud qhuav thiab sab hauv yog saturated ua ntej cov cib liab yuav tsum tau ua.

12. Nws tsis raug tso cai ua cov cib los yog taug kev ntawm cov masonry, thiab nws tsis raug tso cai rau lub ntsej muag ntawm cov cib ua rau cov nplaim taws.

13. Qhov chaw ntawm refractory cib thiab cib liab yuav tsum tau sib koom ua ke. Qhov twg cov pob qij txha convection yog concentrated thiab qhov twg cov khoom siv boiler raug thaiv, cov pob ntseg tshauv yuav tsum tau muab pov tseg nrog rau cov masonry.

Kev tsim kho feem ntau yog qhov txuas uas cov tuam txhab lag luam nyiam tsis quav ntsej. Lawv ib txwm xav tias cov khoom zoo thiab cov qauv tsim zoo tuaj yeem lav qhov kev pab cuam lub neej ntawm qhov cub. Nyob rau hauv lub teb chaws tus qauv, muaj cov kev cai nruj heev rau kev tsim kho ntawm rotary kiln, raws li nram no: