Precooling technique and device for recovering turpentine

Abstract

The invention discloses a precooling technique and device for recovering turpentine. The technique is implemented by arranging a precooling device between a distilling kettle and a cooler. The precooling device comprises a precooling tank, wherein a plurality of vapor pipes are arranged in the precooling tank; both ends of each vapor pipe are opened at seal layers on both sides of the precooling tank; the wall of the precooling tank is provided with a water inlet and a water outlet; an upper cover and a lower cover of the precooling tank are flexibly connected with the tank body; a mixture of turpentine and vapor distilled out of the distilling kettle enters the precooling tank; and after cooling water is introduced into the precooling tank to perform precooling, the mixture enters the cooler to be further cooled into a liquid. The precooling technique and device disclosed by the invention have strong pertinence; the device has a simple structure; the precooling technique has the advantage of simple steps, and is very easy to operate; the invention has the advantages of high turpentine cooling rate and favorable oil-water separation effect, and can enhance the recovery rate of the turpentine; and the hot water after precooling can be reutilized, thereby saving the energy consumption and water resources, maximally lowering the cost and enhancing the effectiveness.

Description

technical field [0001] The invention relates to the technical field of processing turpentine and recovering turpentine, in particular to a precooling process and a device used in the process of recovering turpentine. Background technique [0002] In the process of rosin production, processing and recovery of turpentine, the turpentine and water vapor distilled from the distillation pot are mixed together, enter the cooler for cooling and become liquid, and then the turpentine and water are separated by the oil-water separator to recover the turpentine. During this process, the temperature of the oil-water mixture gas coming out of the still is very high, often exceeding 180°C. Such high-temperature gas directly enters the cooler, and the cooling speed is slow. After a long time, the temperature still cannot be lowered. A still needs to be used with A plurality of coolers are used together and take up a large space. Even so, the cooling effect is not ideal, and a part of turp...

AI Technical Summary

Problems solved by technology

During this process, the temperature of the oil-water mixture gas coming out of the still is very high, often exceeding 180°C. Such high-temperature gas directly enters the cooler, and the cooling speed is slow. After a long time, the temperature still cannot be lowered. A still needs to be used with Multiple coolers are used together and occupy a large space. Even so, the cooling effect is not ideal, and a part of turpentine is still left in the water to be discharged, which not only pollutes the environment but also causes the loss of heat energy and turpentine

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