Decolorizing and filtering device in paracetamol preparation process and decolorizing and filtering method of decolorizing and filtering device

Abstract

The invention relates to the technical field of decolorizing and filtering equipment, and discloses a decolorizing and filtering device in a paracetamol preparation process and a decolorizing and filtering method of the decolorizing and filtering device. The decolorizing and filtering device comprises a decolorizing tank, a feeding cylinder is arranged at the positions, on the two sides of a liquid inlet pipe, of the top end of the decolorizing tank, and supporting plates are arranged on the outer walls of the two sides of a material shoveling cylinder. The material shoveling cylinder is arranged at the bottom of a top plate of the decolorizing tank through supporting springs at the upper ends of the supporting plate, the top end of the material shoveling cylinder extends to an inner cavity of the feeding cylinder, a feeding opening is formed in the outer wall of one side of the material shoveling cylinder, and the bottom of the material shoveling cylinder is of an open structure. Connecting rings are arranged on the outer wall of a bottom port of the material shoveling cylinder through fixing inclined rods, and the connecting rings on the two sides of the lower end of the liquid inlet pipe are connected through a transverse plate. To-be-decolored liquid falls from the liquid inlet pipe and impacts a shifting plate to drive a rotating roller to rotate, when the rotating roller rotates, ejector rods at the tail end of the shifting plate on the outer wall of the rotating roller sequentially rotate to eject the transverse plate to move downwards, and a supporting spring is matched to pull the material shoveling cylinder to do up-and-down reciprocating motion in a communicating pipe, so that the material shoveling cylinder intermittently extends into the feeding barrel, activated carbon particles enter the material shoveling cylinder from the feeding opening, and automatic intermittent discharging is achieved.

Description

technical field [0001] The invention relates to the technical field of decolorization and filtration equipment, in particular to a decolorization and filtration device and a decolorization and filtration method in the paracetamol preparation process. Background technique [0002] Paracetamol, trade names include Baifuning, Biliton, Tylenol, and acetaminophen. The international non-proprietary drug name of this product is Paracetamol. It is the most commonly used non-anti-inflammatory antipyretic and analgesic drug. Its antipyretic effect is similar to that of aspirin, but its analgesic effect is weak. It has no anti-inflammatory and anti-rheumatic effects. It is the best variety among acetanilide drugs. It is mainly used for cold and fever, joint pain, neuralgia and migraine, cancer pain and postoperative pain relief. There is a process of decolorization and filtration in the preparation process of paracetamol, which is generally obtained by adding activated carbon to the ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a decolorization and filtration device and a decolorization and filtration method in the preparation process of paracetamol, aiming at solving the above-mentioned background technology, whether it is manual or a feeding device, generally all directly add quantitative activated carbon at one time After a large amount of activated carbon is added to the crude paracetamol at one time, it needs to be fully stirred evenly, so that the activated carbon can completely remove the pigment in the crude paracetamol, which greatly affects the adsorption and decolorization effect of the activated carbon on the crude paracetamol. After some decolorization and filtration devices absorb and decolorize paracetamol, there will be a large amount of waste charcoal inside. It is troublesome to clean up and remove. Once the cleaning is not clean, it will affect the next use of the equipment.

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