High-efficiency turpentine distillation device

Abstract

The invention discloses a high-efficiency turpentine distillation device which comprises a molecular evaporation cylinder and a molecular cooler, wherein the molecular evaporation cylinder is shaped like a straight cylinder; a heating jacket is arranged on the cylinder outer wall of the molecular evaporation cylinder; a heating source inlet is formed in the lower part of the heating jacket; a heat source outlet is formed in the upper part of the heating jacket; a connecting flange is arranged at the top of the molecular evaporation cylinder; a vacuum pump interface, a turpentine liquid inlet and a turpentine liquid distribution ring are arranged formed below the connecting flange; a turpentine oil receiving disk, a turpentine oil outlet and a rosin outlet are formed at the bottom of the molecular evaporation cylinder; the inner cylinder wall surface from the turpentine liquid distribution ring to the turpentine oil receiving disk is a molecular evaporation surface; the diameter of the molecular evaporation surface is in the range of 200 mm to 1200 mm; and the vertical length of the molecular evaporation surface is in the range of 1500 mm to 2500 mm. The high-efficiency turpentine distillation device saves the steps of directly evaporating and reducing the distillation temperature and can save energy by more than 70% compared with the distillation method.

Description

technical field [0001] The invention relates to a distillation device, in particular to a high-efficiency rosin distillation device. Background technique [0002] Rosin is a widely used industrial raw material. The pine resin of pine trees contains rosin and turpentine, and rosin is obtained by steaming turpentine. After dissolving, settling, and removing impurities, the pine resin is diluted into a fat liquid with good fluidity, and then enters the distillation process. In the current production process, two streams of steam work when distilling fat liquid. The first is indirect steam, which transfers heat through coiled tubes, and heats the fat liquid continuously until the distillation ends at about 195°C; the second is direct steam. , it is sprayed into the fat liquid, mixed with the fat liquid to azeotropically extract the turpentine. This process is called the steam method, and it is the mainstream process in the rosin industry in all countries in the world. Althou...

AI Technical Summary

Problems solved by technology

Although this process is mature, it consumes a lot of energy. Each ton of rosin consumes 1 ton of steam. Therefore, the factory needs to use a large boiler to supply steam, which has an impact on the environment.

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