以一定量的煤樣與一定量的無(wú)煙煤（惰性物質(zhì)）混合均勻，使得煤樣（小粒度）均勻地附著在無(wú)煙煤（大粒度）的表面，干餾過(guò)程中煤樣生成的膠質(zhì)體將無(wú)煙煤的顆粒粘結(jié)在一起，然后用特制的轉(zhuǎn)鼓做轉(zhuǎn)磨試驗(yàn)，以測(cè)定焦碳的耐磨強(qiáng)度。以此來(lái)判斷煤樣（煤中膠質(zhì)體）對(duì)無(wú)煙煤的粘結(jié)能力，再運(yùn)用特定的公式來(lái)計(jì)算出煤樣的粘結(jié)性。

用途：用于測(cè)定煉焦用煤的粘結(jié)能力—羅加指數(shù)及粘結(jié)指數(shù)

特點(diǎn)：

1．計(jì)數(shù)準(zhǔn)確、操作方便。 2．轉(zhuǎn)數(shù)可任意預(yù)置。 3．開(kāi)機(jī)自動(dòng)復(fù)位。 4．混合煤樣按國(guó)標(biāo)自動(dòng)攪拌。

Uniform blending of coal samples with anthracite( inertia substance ) is made in certain amounts, allowing the coal samples ( small size fraction) to evenly attached to the surfaces of anthracite(large size fraction). Colloids produced by anthracite in the process of distillation to be bonded with particles of anthracite are subject to grinding tests with rotating drum for measuring abrasion strength of coke , on which ability of bonding of the coal samples (colloids in coal) to anthracite can be judged and the  cohesiveness of the coal samples can be calculated using the special formula.

Use: It is applied for measuring bonding ability of coal for coke , Roga index and coking index.

Features:

1、Accurate counting and simple operation

2、Pre-setting of number of rotation randomly

3、Auto-reset after start-up

4、Blended coal samples being automatically agitated as per the relevant national standards.