The process flow of zvidhina zvinokanganisa vagadziri kugadzira silica zvidhinha

Izvo zvigadzirwa zve silica zvidhinha isilika, zvidhinha zvinorasa, lime, mineralizers uye organic binders. Kuwedzerwa kwemarara silica zvidhinha hakusi kungoderedza kupisa kwekuwedzera kwezvidhinha, asiwo kunoderedza kupisa kwemoto uye simba rezvigadzirwa. Naizvozvo, Henan refractory zvidhinha vagadziri vanotemwa maererano nemamiriro akasiyana. Nheyo yacho ndeyokuti yakakura iyo unit uremu hwechigadzirwa, iyo yakanyanya kuoma chimiro uye yakawedzera kuwedzera. Kazhinji inodzorwa mukati me20%.

Lime inowedzerwa kune zvinhu zvakaderera mumhando yemukaka weraimu. Mukaka we lime unoita sebhainda, unowedzera simba mushure mekuoma, uye unoshanda seminerari panguva yekupisa. Hunhu hunoda 90% inoshanda Cao, isingasviki 5% carbonate, uye saizi yebhuroka inosvika makumi mashanu mm. Iyo mineralizer inoshandiswa mukugadzira inonyanya kukungurutswa simbi chiyero. Chinodiwa chemhando ndechekuti iyo iron oxide yemukati yakakura kupfuura 50%, iyo inofanirwa kupatsanurwa nechigayo chebhora, uye chikamu chine saizi isingasviki 90mm inofanira kuverengera kupfuura 0.088%.

Iyo yakajairika organic binder is sulfite slurry waste liquid.

Kune mana misimboti yekuona kuumbwa kwe silica zvidhinha zvimedu;

1) Paunenge uchisarudza iyo yakakosha particle size, kugadzikana kweiyo yakanyanya density uye yakakwirira tembiricha yekupisa vhoriyamu inofanirwa kuve nechokwadi;

2) Zvinotarisirwa kuti zvimedu zvakakosha muzvinhu zvakashata zvidiki uye zvidimbu zvakanaka zvakawanda;

3) Paunenge uchishandisa musanganiswa wemhando dzakasiyana dze silica, wedzera zvidimbu zvakakasharara pakupisa kwepamusoro uye zvimedu zvakanaka pane tembiricha yakaderera;

4) Kune silica mbishi zvinhu zvine dense magadzirirwo, zvimedu zvinogona kuomarara, zvikasadaro zvakapfava.

Tsika yekugadzira inoratidza kuti yakakosha saizi yeyakajairwa silica zvidhinha ndeye 2 ~ 3mm, uye kana vein quartz ikashandiswa seyakagadzirwa, iyo yakanyanya kukura saizi ingangoita 2mm.

Mamiriro ekuumba e silica zvidhinha anonyanya kuratidzwa muzvikamu zvitatu: maitiro ekuumba asina chinhu, chimiro chakaoma chechidhinha chimiro uye musiyano mukuru muhutano humwe.

Silicon billet ipurasitiki yakaderera zvinhu, saka iyo yekuumba inomanikidza inofanira kuwedzerwa zvakakodzera. Coke oven silica zvidhinha zvine maumbirwo akaomarara, huremu humwe, uye mamwe ane ukobvu hwe160mm, saka zviri nani kushandisa kaviri-sided molding. Kana iyo vibration modelling nzira yakagamuchirwa, zvakanakira zvaro zviri pachena. Zvidhinha zvesilika zvichawedzera muhuwandu pavanenge vadzingwa, saka ukuru hwezvidhinha mold inofanira kuderedzwa maererano.

Silicon zvidhinha ichaita shanduko yechikamu panguva yekupfura, izvo zvinounza matambudziko ekupfura. Naizvozvo, shanduko yemuviri neyekemikari yehuni, chimiro uye saizi yemuviri wakaremara, uye hunhu hwemuvini hunofanirwa kutariswa zvizere.

1) Kana tembiricha yakadzikira kupfuura 600 ℃, tembiricha inofanira kusimudzwa nekukurumidza uye zvakaenzana;

2) 700～1100℃ kupisa mwero inokurumidza kupfuura yekare;

3) Mutembiricha ye1100～1430℃, mwero wekupisa unofanirwa kuderedzwa zvishoma nezvishoma;

4) Kupisa kusina simba kwemoto kunoshandiswa munzvimbo yakakwirira yekushisa, uye tembiricha muchoto inogovaniswa zvakaenzana kudzivirira kukuvadzwa kwemuviri wezvidhinha nemurazvo. Mushure mokusvika pahupamhi hwekupisa sintering, panofanira kuva nenguva yakakwana yekubata, uye nguva yekubata inoshanduka pakati pe20～48h;

5) Inogona kutonhodzwa nekukurumidza pamusoro pe600～800 ℃, uye zviri nani kutonhora zvishoma nezvishoma pane yakaderera tembiricha.