Kugadzirira kwemuenzaniso

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Usati waenda, zvakakosha kuona kuti iyo sampuli inogona kugadziriswa zvakananga kana kuti pretreatment inofanirwa. Zvinhu zvakaita sehunyoro, kuunganidzwa, kugovera zvisina kuenzana, kana zvinhu zvekunze zvinogona kukanganisa maitiro uye kutungamirira kune mhedzisiro isina kururama.

Huwandu hwekuenzanisira hunodiwa hunofanirwawo kutariswa: Ingani zvinhu zvinodikanwa pakuwongorora kunotevera, uye yakakura sei sampuro yekutanga? Kana zvichidikanwa, mumiriri we subsample anofanira kutorwa ane kuumbwa kunoenderana nesero sampuli.

Sampling

Mazhinji emasamples emurabhoritari ane inhomogeneous musanganiswa. Hukuru hwakasiyana twudiki uye hunyoro hwezvinhu hunowanzo tungamira mukusarura panguva yekufambisa nekubata. Kana iyo sample yese isiri pasi, mumiriri subsample inofanira kutorwa.

Kana yekutanga sampu yakakurisa, inofanirwa kufanopwanywa isati yapatsanurwa. Kusarudzwa kweiyo nzira yekukamura yakakodzera uye mudziyo unoenderana nezvinhu zvemukati uye inodiwa sampuli vhoriyamu. Yemahara-inoyerera, yakaoma samples inogona kupatsanurwa uchishandisa, semuenzaniso, mafeeder, rotary chubhu dividers, kana akakosha emuenzaniso divider zvezvinhu zvakawanda, nepo kupatsanura nenyere kwakakodzera kune zvishoma mahara-inoyerera zvinhu.

Manual, random sampling inonyanya kukodzera kana kuongororwa kwakapusa kunoitwa, zvinhu zvacho zvakakwana homogeneous kana hapana imwe nzira inogoneka nekuda kwekunetsa kwenguva.

Rotary sample divider

Yedu inotenderera yemuenzaniso dividers yakanyatsogadzirirwa kupatsanurwa uye kuderedzwa kwehuwandu hwehuwandu hwehupfu kana granular zvinhu zvakawanda.

zvimwe

Corrugated divider

Kune chaiyo uye inogoneka kupatsanurwa kwezvinhu zvakawanda kuita maviri anomiririra sub-samples.

zvimwe

Sample cross yezvakavimbika ongororo mhinduro

Muenzaniso muchinjikwa

Yedu yemuenzaniso muchinjiko inovimbisa yunifomu, inomiririra sampuli uye nekudaro yakavimbika kuongororwa mhinduro.

zvimwe

Kuomesa

Kubatanidzwa kwezvinhu zvakanyorova kana kuti zvakanyorova zvemuenzaniso—somuenzaniso, muzvigayo zveshaya, zvigayo zvinotenderera, kana kuti zvigayo—zvinowanzonetsa. Hunyoro hunogona kukurumidza kutungamirira kukuvhara mukamuri yekukuya, kukonzera mhete uye pasi sieves kuzvimba, uye pakupedzisira kuvharira mudziyo. Izvi hazvikonzeri kurasikirwa kwezvinhu chete asiwo zvinowedzera kuedza kwekuchenesa.

Kunze kunosanganisira maitiro akadai se colloidal grinding, umo zvinwiwa zvinowedzerwa nemaune kumabhora ezvigayo, uye homogenization yemuchero mutsva nemiriwo, uko pasina chero chinhu chinorasika.

Kazhinji kazhinji, zvisinei, zvinodikanwa kuomesa sampuli dzakanyorova usati wakuya. Pakusarudza nzira yakakodzera yekuomesa, kuwedzera kune iyo yekubikira, njodzi dzinogona kuitika senge reactivity, kuputika kweguruva, kana kupisa kwekunzwa kwezvimwe zvinhu kunofanirwa kutariswa. Kuchengetedza kwakakodzera kwekuchengetedza kwakakosha kune zvinhu zvakaita se polychlorinated biphenyls (PCBs) kana dioxins.

Metal deposits

Samples akati wandei, kunyanya kubva kuchikamu chezvakatipoteredza senge marara ekutengesa, zvisaririra, mafuta echipiri uye marara emarara, anowanzo aine zvinhu zvesimbi zvisingagone kupatsanurwa uchishandisa zvakanangwa kucheka midziyo.

Chokwadi, zvinhu zvekune dzimwe nyika zvakaita sembambo dzesimbi kana masiruu esimbi zvinogona kukanganisa maturusi ekukuya zvobva zvakanganisa zvakanyanya kushanda kweguyo. Nechikonzero ichi, zvikamu zvesimbi zvinofanirwa kubviswa zvisati zvagadziriswa uye, kana zvichidikanwa, kuraswa.

Magnetic kupatsanurwa kweferromagnetic particles

Kushandiswa kwe nitrogen yemvura mu cryogenic grinding kana kutonhora kukuya

Embrittlement nemvura nitrogen kana yakaoma ice

Kutonhodza zvinhu kuti zviitwe pasi kazhinji zvinovandudza maitiro ekutyoka kwayo. Saka kutonhora kwakanyanya, kwakananga kunodiwa kuti kusati kwagaya uye kugayiwa kwakanaka kwemasamples anonzwa tembiricha, senge mapurasitiki mazhinji. Imwe sarudzo ndeye embrittle iyo sampuli zvinhu mune yemvura nitrogen (N₂, LN₂) isati yakuya. Neimwe nzira, inogona kunyoroveswa nechando chakaoma, kuitira kuti zvinhu zvive brittle pakudziya kwakadzika uye zviri nyore kugaya.Cryogenic kugaya)

Nzira dzekutonhodza dzinoshandiswawo kana zvikamu zvinoshanduka mumuenzaniso zvinoda kuchengetedzwa. Chikonzero cheichi tembiricha yakaderera apo, semuenzaniso, unyoro mune sampuli zvinhu zvinoomesa muchando uye hazvigone kupukunyuka panguva yekukuya. Mushure mekukuya, mvura yakaomeswa nechando inonyunguduka zvakare patembiricha yemumba. Nokudaro, nguva dzose zvakakosha kutarisa kana nzira yakasarudzwa inosiya kuumbwa kwemuenzaniso usina kuchinja.

Inowanzobvunzwa mibvunzo

Cryogenic grinding inzira yakapfava yekuendesa uye homogenizing tembiricha-inonzwa sampuli. Zvishandiso zvakatonhodzwa uchishandisa zvinotonhora zvakanyanya, izvo zvinovaita brittle uye inogonesa inoshanda mekinika comminution.

Kubatsira kwakakosha kwekukuya cryogenic nderekuti tembiricha-sensitive zvinhu zvinogona kugadziriswa pasina kushandiswa kwekupisa. Izvi zvinoguma nekuvandudzika hunhu hwekutyoka uye zvinoita kuti kutakurwa kwezvinhu zvakaoma kana zvisingagoneke kugadzikiswa nemakanika pasi pemamiriro akajairwa, senge elastomers.

Zvinowanzo shandiswa zvinotonhodza initrogen yemvura (approx. -196 °C) uye aizi yakaoma (approx. -78 °C). Izvi zvinovimbisa kukurumidza kutonhora, embrittle iyo sampuli zvinhu, uye nekudaro inovandudza comminution maitiro.

Ing. Klaus Ebenauer

info@litechgmbh.com
+43 1 99 717 55

Kugadzirira kwemuenzaniso

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