Low-temperature dry distillation equipment and method for low-rank coal and oil shale
A technology of oil shale and low-rank coal, applied in the field of energy and chemical industry, can solve the problems of small output, low gas production quality, and high production cost of a single set of equipment, achieve the effects of less heat loss, high gas purity, and increase equipment output
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[0036] Examples see figure 1 As shown, this low-temperature retort equipment for low-rank coal and oil shale is composed of three parts: a retort furnace rotary main machine, a material screw feeder, and a gas-solid separation box. The material screw feeder and retort furnace rotary main machine The feed end is connected, and the gas-solid separation box is connected to the discharge end of the retort furnace rotary main machine;
[0037] The retort furnace rotary host is a cylindrical structure arranged obliquely downward from the feed end to the discharge end; the cylindrical structure includes a small-diameter drum 46 in the feed section, a large-diameter drum 19 in the reaction section, and a small-diameter drum 36 in the discharge section Three parts, the outer wall of the cylindrical structure is wrapped with a layer of refractory material 50, and the two ends of the large-diameter drum 19 in the reaction section are respectively connected by the conical section drum 17 ...
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