Kusamala pa zomangamanga za ng’anjo yozungulira

Mlingo wa ntchito ya ng’anjo yozungulira (ng’anjo ya simenti) imakhala ndi ubale wabwino kwambiri ndi zomangamanga zomanga njerwa. Iyenera kumangidwa mosamala mogwirizana ndi zofunikira zaumisiri wa njerwa za refractory. Zofunikira zenizeni ndi izi:

1. Khungu la cellar lomwe limamangiriridwa kunsalu ya njerwa liyenera kutsukidwa musanamangidwe, makamaka malo omwe matabwa apakati ayikidwa ayenera kukhala athyathyathya momwe angathere.

2. Limbani zitsulo za njerwa m’njira zopingasa komanso zoyima ndi wononga ndi matabwa apakati; mutatha kudziwa gawo lomwe likufunika kusinthidwa, gwiritsani ntchito screw ndi matabwa a square kuti mumangitse gawo lotsalalo.

3. Mukachotsa njerwa zakale mu ngalande, samalani ndi kuteteza njerwa kuti muteteze kutsetsereka kwa njerwa yotsalayo. Akakanidwa, mbale yaying’ono yachitsulo imawotcherera ku silinda kuti nsabwe za njerwa zisasunthike.

4. Njerwa zosakanizidwa zisanamangidwe, chipolopolo cha cellar yozungulira chiyenera kuyang’aniridwa bwino kuti ayeretse m’chipinda chapansi pa nyumba.

5. Pomanga, mosasamala kanthu kuti ndi njira yotani yopangira zomangamanga, zomangamanga ziyenera kumangidwa mosamalitsa motsatira maziko, ndipo ndizoletsedwa kumanga popanda kuyika mzere. Yalani mizere musanayambe kuyala njerwa zomangira: mzere woyambira wa cellar uyenera kuyikidwa mozungulira mozungulira 1.5m, ndipo mzere uliwonse uzikhala wofanana ndi olamulira a cellar; mzere wozungulira wozungulira udzayikidwa pa 10m iliyonse, ndipo mzere wozungulira udzakhala wofanana. Ayenera kufanana wina ndi mzake ndi perpendicular kwa olamulira m’chipinda chapansi pa nyumba.

6. Zofunikira pakumangira njerwa m’chipinda chapansi pa nyumba ndi: denga la njerwa lili pafupi ndi chigoba cha cellar, njerwa ndi njerwa ziyenera kukhala zolimba, zolumikizira njerwa ziyenera kukhala zowongoka, mphambanoyo ikhale yolondola, njerwa ziyenera kutsekedwa mwamphamvu; pamalo abwino, osagwedezeka, osagwa. Mwachidule, m’pofunika kuonetsetsa kuti refractory njerwa ndi m’chipinda chapansi pa nyumba thupi ndi concentricity odalirika pa m’chipinda chapansi pa nyumba ntchito, ndi nkhawa njerwa akalowa ayenera wogawana anagawira lonse m’chipinda chapansi pa nyumba akalowa ndi pa njerwa iliyonse.

7. Njira zomangira njerwa zimagawidwa m’magulu awiri: zomangamanga za mphete ndi zomangira. Zosungira zatsopano ndi masilindala zimayendetsedwa bwino ndipo mapindikidwe ake si aakulu. Kumanga mphete nthawi zambiri kumagwiritsidwa ntchito; kupindika kwa silinda kumakhala koopsa kwambiri ndipo njerwa zomwe zimagwiritsidwa ntchito ndizovuta. M’chipinda chapansi pa nyumba, njira yomangamanga yokhazikika ingagwiritsidwe ntchito mu njerwa yayikulu ya alumina ndi gawo la njerwa zadongo.

8. Pakuyika mphete, kupotoka kwa mphete ku dziko lapansi kumaloledwa kukhala 2mm pa mita, ndipo kutalika kwa gawo la zomangamanga kumaloledwa kukhala 8mm. Mukagwedezeka, kupatuka koyima pa mita kumaloledwa kukhala 2mm, koma kutalika kovomerezeka kwa mphete yonse ndi 10mm.

9. Njerwa yomaliza ya bwalo lililonse (kupatula bwalo lomaliza) imakankhidwira mkati kuchokera kumbali ya njerwa (molunjika kumtunda wa cellar yozungulira) kuti amalize kuzungulira konsekonse, ndi kulabadira kusintha kozungulira. mtundu wa njerwa momwe ndingathere kuti musagwiritse ntchito. Zitsulo zazitsulo zowuma zowuma nthawi zambiri zimakhala 1-1.2mm, ndipo m’lifupi mwake mbale yachitsulo iyenera kukhala yaying’ono pafupifupi 10mm kuposa m’lifupi mwa njerwa.

10. Pambuyo pomanga njerwa zomangira, njerwa zonse zomangira ziyenera kutsukidwa ndikumangirizidwa mokwanira. Sizoyenera kusamutsa m’chipinda chapansi pa nyumbayo pambuyo pomaliza. Iyenera kuyatsidwa mu nthawi ndikuphika molingana ndi kuyanika kwa cellar curve.