Compressors na Iska don Ruwa Biyu

Masu matsa iska don ayyukan jet grouting na ruwa biyu suna wakiltar kayan aikin masana'antu na musamman da aka tsara don bayar da iska mai matsa lamba a matsayin babban hanyar jet a cikin aikace-aikacen tushe mai zurfi da inganta ƙasa. A cikin tsarin ruwa biyu, jet na iska yana aiki tare da jet na grout, suna haɗuwa a zurfi don ƙirƙirar ginshiƙi na ƙasa-siminti mai haɗaka. Masu matsa iska suna zama tushen wannan tsarin isar da pneumatic kuma suna da matuƙar muhimmanci don samun ƙarfin haɗawa da geometry na ginshiƙi da ake buƙata don aikin gini. A matsayin muhimmin sashi a cikin fasahar Ground Walls da Cutoff Curtains, waɗannan masu matsa iska suna ba da damar aiwatar da katangar katako na jet-grouted, katangar diaphragm, da ginshiƙai na ƙasa-siminti da aka haɗa da aka yi amfani da su a cikin ƙirar tushe mai zurfi, kulawa da ruwa, da kuma daidaita hanyoyin. Ka'idar aiki na tsarin ruwa biyu yana dogara da jets guda biyu masu bambanta: jet na iska mai sauri (yawanci ana bayar da shi daga mai matsa iska a ƙarƙashin matsa lamba na 15–40 bar) da jet na grout mai sauri ƙasa (ana bayar da shi daga famfon siminti). Jet na iska yana aiki a matsayin babban hanyar juyawa, yana karya tsarin ƙasa da kuma jigilar kayan da aka hakar zuwa saman. Jet na grout mai jinkirin motsi yana biye da hanyar jet na iska kuma yana ajiye kayan haɗin gwiwa a cikin ramin da aka ƙirƙira, yana haifar da ginshiƙi mai ɗorewa. Masu matsa iska suna buƙatar ci gaba da aiki ko kuma a hankali a cikin dogon lokutan grouting, yawanci a ƙarƙashin matsa lamba mai yawa don daidaita nauyin hydrostatic a zurfi da kuma tabbatar da isasshen motsi ta cikin ƙasa mai kauri ko haɗaka. Tsarin jet grouting na ruwa biyu yana amfani da masu matsa iska na ƙwanƙwasa na dindindin ko masu matsa iska na piston a matsayin manyan nau'in kayan aiki. Masu matsa iska na ƙwanƙwasa suna mamaye a cikin manyan ayyuka saboda ingantaccen isar da ruwa a ƙarƙashin matsa lamba mai kyau da ƙananan buƙatun kulawa; ana zaɓar masu matsa iska na piston don ƙananan ayyuka ko inda samuwar wutar lantarki take da iyaka. Zaɓin mai matsa iska yana dogara da wasu sharuɗɗan fasaha: matsa lamba da ake buƙata (yawanci 25–40 bar na gaske don jet grouting a zurfin mita 30), yawan gudu (daga 4 zuwa 12 m³/min a kowane ginshiƙi, dangane da diamita na ginshiƙi da zurfin magani), tsarin aiki (ci gaba ko kuma a hankali a cikin juyawa), da kuma samuwar ƙarfin tushen (motar lantarki, injin dizal, ko haɗin gwiwa). Karin la'akari sun haɗa da bushewar iska da cire danshi, saboda tururin ruwa a cikin iska mai matsa lamba na iya lalata kimiyyar grout da kuma kawo cikas ga ingancin ginshiƙi. Ka'idodin ƙasa na duniya da suka shafi ƙira da aikin masu matsa iska sun haɗa da ISO 1217 (rarraba aikin iska mai matsa lamba), EN 60204-1 (tsaro na injuna—kayan aikin lantarki), da ISO 4413 (karfin ruwa na hydraulic—ka'idojin gaba ɗaya da tsaro). Tsarin ruwa biyu da kansa yana ambaton a cikin DIN 4093 (inganta ƙasa ta hanyar haɗin zurfi) da sabbin ƙa'idodin ISO don kayan ƙarancin ƙarfin ƙarfi (CLSM) da abubuwan da aka juyar da jet. Zaɓin kayan aiki daga masu kwangila yana buƙatar la'akari da ƙa'idodin muhalli na gida da suka shafi fitar da hayaki daga masu matsa iska, matakan hayaniya (yawanci ana iyakance su zuwa 85–95 dBA), da kuma kulawa da ƙura a cikin yankunan da aka cika.