D-tryptophan methyl ester hydrochloride drying device based on lifting and discharging technology

Abstract

The invention discloses a D-tryptophan methyl ester hydrochloride drying device based on a lifting and discharging technology. A box body is of a cylinder structure with an opening in the top end, a supporting table is arranged on the edge of the bottom wall of the inner cavity of the box body, and a guide rail is arranged at the top end of the supporting table; a base is arranged at the top end of the guide rail, the guide rail is rotationally connected to the base, an electric telescopic device is arranged in the center of the top end surface of the base, a plurality of supporting rods are uniformly arranged on the outer circle surface of a telescopic rod on the electric telescopic device, and base plates are arranged on one sides, away from the telescopic rod, of the top end surfaces ofthe supporting rods; and a clamping cavity is formed in the top end of each base plate, and a placing plate is arranged in each clamping cavity. According to the device, the telescopic rod is jackedup through the electric telescopic device, so that all the base plates are supported to be separated from the box body, and loading and unloading of the placing plates are completed; a worker finishesloading and unloading above the box body, the position is close to the box body, and the safety of the worker can be protected to the largest extent; and the acid gas in the box body can be timely discharged through an exhaust bucket, the residual of the polluted gas in the box body can be reduced, and the safety of the worker can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of bio-organic synthesis, in particular to a drying device for D-tryptophan methyl ester hydrochloride based on lifting and unloading technology. Background technique [0002] D-tryptophan methyl ester; D-tryptophan methyl ester hydrochloride, traits: white fine powder crystal, melting point: 213-216 ° C; tadalafil intermediate, tadalafil is generally used to treat male erection Dysfunction, the principle of action is the same as that of sildenafil and vardenafil. [0003] D-tryptophan methyl ester hydrochloride is generally obtained by reacting D-tryptophan with thionyl chloride to generate acid chloride, and then reacting with methanol, so the obtained D-tryptophan methyl ester hydrochloride generally contains residual Thionyl chloride and hydrochloric acid gas, the drying box is easily corroded by acid gas during the drying process, which brings a lot of inconvenience to loading and unloading, and worker...

AI Technical Summary

Problems solved by technology

[0003] D-tryptophan methyl ester hydrochloride is generally obtained by reacting D-tryptophan with thionyl chloride to generate acid chloride, and then reacting with methanol, so the obtained D-tryptophan methyl ester hydrochloride generally contains residual Thionyl chloride and hydrochloric acid gas, the drying box is easily corroded by acid gas during the drying process, which brings a lot of inconvenience to loading and unloading, and workers are easily corroded by the residual chemical liquid on the equipment, endangering the health of workers

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