密度调整是小填径乳化炸药生产主要工序之一，其实质是粘度和体积比十分悬殊的几种物质的混合。把很细的固体颗粒分散到屈服假塑型小直径乳化炸药基质中为固、液混合的极端情况，这给小直径乳化炸药密度调整带来许多困难，在一般混合设备中难以进行。作者简要分析了小直径乳化炸药基质混合过程，介绍一种新型间断式混合机，解决了小直径乳化炸药基质与细小固体颗粒均匀混合问题。 Density adjustment is one of the main processes for the production of small-diameter emulsion explosives. Its essence is the mixing of several substances whose viscosity and volume ratio are very poor. Dispersing very fine solid particles into yield pseudoplastic small-diameter emulsion explosives is an extreme case of solid-liquid mixing, which poses many difficulties for the density adjustment of small-diameter emulsion explosives, which is difficult to achieve in conventional mixing equipment. The author briefly analyzed the mixing process of small diameter emulsion explosives matrix, and introduced a new type of intermittent mixer to solve the problem of uniform mixing of small diameter emulsion explosive matrix and fine solid particles.