Efficient and practical evaporator

Abstract

An efficient and practical evaporator comprises a heating chamber and an evaporating chamber, wherein the evaporating chamber is located above the heating chamber; a stirring device is arranged in the heating chamber and comprises a motor and a rotating shaft, a turning block is arranged at each of the upper half part and the lower half part of the rotating shaft and connected with a cross bar, three blades are fixed at the tail end of each cross bar, the tail end of one blade is linearly connected with the cross bar, and the other two blades are vertically and symmetrically arranged and perpendicularly connected with the cross bar, so that a liquid is sufficiently and uniformly mixed, solute is uniformly distributed, and a feed liquid is not easy to escape; and an steam outlet of the evaporating chamber is in a circular truncated cone shape, and zigzag threads are formed in the steam outlet, so that crystal can be effectively prevented from being taken away by steam, the crystal interception effect is good, and the product yield is improved.

Description

technical field [0001] The invention relates to chemical and pharmaceutical production equipment, in particular to an efficient and practical evaporator. Background technique [0002] The evaporator is a kind of liquid concentration equipment often used in chemical production, light industry production, pharmaceutical industry and biological engineering. The evaporator is generally composed of a heating chamber and an evaporation chamber. The heating chamber is equipped with a heater. The heating chamber is used to concentrate The liquid provides the heat required for evaporation, which promotes the boiling and vaporization of the liquid. The steam contains a large amount of liquid foam. The boiling and vaporized liquid completes the gas-liquid two-phase separation in the evaporation chamber by virtue of its own condensation or demister. The current evaporator generally uses Forced circulation pump or thermal energy can make the liquid self-circulate. For products with low s...

AI Technical Summary

Problems solved by technology

[0002] The evaporator is a kind of liquid concentration equipment often used in chemical production, light industry production, pharmaceutical industry and biological engineering. The evaporator is generally composed of a heating chamber and an evaporation chamber. The heating chamber is equipped with a heater. The heating chamber is used to concentrate The liquid provides the heat required for evaporation, which promotes the boiling and vaporization of the liquid. The steam contains a large amount of liquid foam. The boiling and vaporized liquid completes the gas-liquid two-phase separation in the evaporation chamber by virtue of its own condensation or demister. The current evaporator generally uses Forced circulation pump or thermal energy can make the liquid self-circulate. For products with low solubility, a large-power circulation pump is required, otherwise it is easy to block the circulation pipe. Therefore, the cost of the evaporator using the circulation pump remains high, and it depends on the heat energy of the liquid itself. A self-circulating evaporator is formed, and the efficiency of the entire equipment is low due to the low efficiency of liquid circulation

Therefore, there is a stirring device installed in the evaporator on the market, but the existing stirring device directly installs the blades on the rotating shaft, so it can only realize the mixing of the liquid at one level, and cannot realize the uniform mixing of the liquid up and down, which is serious. Affected evaporation efficiency

When the rotating shaft encounters a liquid with a high viscosity during the rotation of the rotating shaft, the rotating shaft will also be damaged due to the large resistance to the blades.

[0003] Moreover, when the evaporated liquid evaporates into a gas, it is easy to take away some fine crystals with these airflows, especially when dealing with liquids that are prone to foaming, the entrainment of crystals is more serious, resulting in a significant decrease in the yield of the product. For large quantities production, which seriously increases the cost of the enterprise

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