推板爐外殼采用鐵板及型鋼經加工和焊接而成,爐殼內內填充硅酸鋁保溫棉,爐膛由高溫耐火磚砌筑而成,作為爐門方便進料和出料,爐膛的材料為高溫合金鋼,可在1200度之下長期使用。在爐膛內安裝特定的金屬內膛,內膛的一端為活動開口,伸出電爐之外,加上特定的設計機構方便打開和關閉密封。
今天咱們來了解下推板爐的操作規程:
1、確認爐膛無試樣等異物,并檢(jian)查(cha)耐火磚是否(fou)完好。
2、開(kai)總閘,控制柜上選(xuan)擇電(dian)流加(jia)載(zai)方式為“自(zi)動”(默認),確定“自(zi)動調節(jie)”旋(xuan)鈕為小狀態,電(dian)源(yuan)開(kai)關打(da)向“通”。
3、設(she)定加熱溫(wen)(wen)(wen)度和報警(jing)溫(wen)(wen)(wen)度:將(jiang)溫(wen)(wen)(wen)控(kong)開關(guan)打向“控(kong)溫(wen)(wen)(wen)”,緩(huan)慢調節“控(kong)溫(wen)(wen)(wen)設(she)定”旋鈕(niu)至(zhi)所需(xu)溫(wen)(wen)(wen)度;將(jiang)溫(wen)(wen)(wen)控(kong)開關(guan)打向“報警(jing)”,緩(huan)慢調節“報警(jing)設(she)定”旋鈕(niu)至(zhi)所需(xu)溫(wen)(wen)(wen)度;將(jiang)溫(wen)(wen)(wen)控(kong)開關(guan)打向“測溫(wen)(wen)(wen)”,顯示(shi)當前爐溫(wen)(wen)(wen)。常(chang)用溫(wen)(wen)(wen)度為1100℃,超過此溫(wen)(wen)(wen)度,需(xu)特別申請。
4、電(dian)(dian)(dian)流(liu)調(diao)(diao)節(jie)(jie)采用多(duo)段電(dian)(dian)(dian)流(liu)控制(zhi)升溫(wen)(wen):室溫(wen)(wen)至80℃,調(diao)(diao)節(jie)(jie)“自動(dong)調(diao)(diao)節(jie)(jie)”旋鈕至電(dian)(dian)(dian)流(liu)表示數(shu)不超(chao)過60A;80~120℃時(shi),調(diao)(diao)節(jie)(jie)“自動(dong)調(diao)(diao)節(jie)(jie)”至電(dian)(dian)(dian)流(liu)表示數(shu)不超(chao)過80A;120℃至所需溫(wen)(wen)度(du),調(diao)(diao)節(jie)(jie)“自動(dong)調(diao)(diao)節(jie)(jie)”旋鈕至電(dian)(dian)(dian)流(liu)表示數(shu)100A。超(chao)過800℃時(shi),電(dian)(dian)(dian)流(liu)可稍許加大一點,但電(dian)(dian)(dian)流(liu)不超(chao)過110A。夏天開(kai)始升溫(wen)(wen)電(dian)(dian)(dian)流(liu)可調(diao)(diao)至70A。爐(lu)溫(wen)(wen)達到(dao)或接近設(she)定溫(wen)(wen)度(du)時(shi),電(dian)(dian)(dian)流(liu)會不停的浮動(dong)以(yi)穩定爐(lu)溫(wen)(wen)。建議,將電(dian)(dian)(dian)流(liu)調(diao)(diao)小(xiao)以(yi)減少(shao)控制(zhi)柜發出的噪聲。
5、放取(qu)試樣(yang)(yang):爐(lu)(lu)溫(wen)達到設(she)定(ding)溫(wen)度并穩定(ding)一(yi)段時(shi)間(jian)后,將(jiang)電流(liu)調(diao)(diao)至小,打開(kai)爐(lu)(lu)門,移走耐(nai)火(huo)磚(zhuan),將(jiang)試樣(yang)(yang)平穩的放至爐(lu)(lu)膛中心處,移回(hui)耐(nai)火(huo)磚(zhuan),并關(guan)上爐(lu)(lu)門,將(jiang)電流(liu)調(diao)(diao)回(hui)100A左右。取(qu)樣(yang)(yang)時(shi),也必須將(jiang)電流(liu)調(diao)(diao)小。總之,先關(guan)電流(liu),再放取(qu)試樣(yang)(yang);快放快取(qu),耐(nai)火(huo)磚(zhuan)不離開(kai)爐(lu)(lu)膛。
6、試驗結(jie)束后,確(que)認電(dian)流狀(zhuang)態,將電(dian)源開關(guan)打向“斷”,關(guan)總(zong)閘。