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Automatic viscosity regulating apparatus during material stirring

A technology of automatic adjustment and electric control valve, applied in the direction of valve operation/release device, valve device, mixer accessories, etc., can solve the problems of reducing production efficiency, consuming labor workload, affecting drug production, etc., reducing workload, The effect of improving work efficiency

Active Publication Date: 2015-11-25
BEIJING HAIHETIAN TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the solvent is not added in time when the viscosity is too high, the medicine will form hard lumps, which will affect the production of medicines. In severe cases, it is necessary to use tools to break the hard lumps before continuing to produce
At present, it is necessary to manually add solvents for dilution, which consumes the workload of workers and reduces production efficiency.

Method used

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  • Automatic viscosity regulating apparatus during material stirring
  • Automatic viscosity regulating apparatus during material stirring
  • Automatic viscosity regulating apparatus during material stirring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Taking the preparation of levosimendan intermediate as an example, the levosimendan intermediate is made of distilled water, zinc powder, and 3-(4-acetylaminobenzoyl)-butenoic acid as raw materials, put into a reaction vessel, and stir promote its chemical reaction. Wherein, the amount of each component raw material is as follows: distilled water is 1000ml, zinc powder is 82.82g, and 3-(4 acetamidobenzoyl)-butenoic acid is 125g.

[0041] During the stirred reaction process of the levosimendan intermediate, its Isothermal viscosity-time curve Such as image 3 As shown, the viscosity value is 4.2 when the raw materials of each component just start to stir (the temperature is 10°), and when the stirring is carried out for 20 minutes, the viscosity value is 4.3, and the viscosity value has an upward trend, representing the degree of reaction , when stirring for 100 minutes, the viscosity value is 4.5, and the change of the viscosity value tends to be stable, which means ...

Embodiment 2

[0045] Taking the preparation of levosimendan intermediate as an example, the levosimendan intermediate is made of distilled water, zinc powder, and 3-(4-acetylaminobenzoyl)-butenoic acid as raw materials, put into a reaction vessel, and stir promote its chemical reaction. Wherein, the amount of each component raw material is as follows: distilled water is 1000ml, zinc powder is 82.82g, and 3-(4 acetamidobenzoyl)-butenoic acid is 125g.

[0046] In the preparation process of levosimendan, the temperature of the stirring device is often controlled to speed up the reaction. Therefore, for the stirring process where the temperature is also changing, the viscosity change follows the variable temperature viscosity-time change curve, such as Figure 4 Shown, wherein when each component raw material just begins to stir (the temperature is 10 °), the viscosity value is 4.2, when stirring is carried out to 20 minutes (the temperature is 15 °), the viscosity value is 4.0, there is a down...

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Abstract

The invention discloses an automatic viscosity regulating apparatus during material stirring. The automatic viscosity regulating apparatus comprises a viscometer, a plurality of component accommodation devices, a plurality of corresponding electric control valves, a plurality of corresponding flow control circuits, and a microcontroller; the viscometer installed at the inner wall of a stirring container is used for detecting viscosity of a material in real time; the electric control valves are connected with the component accommodation devices; and the flow control circuits control the electric control valves. The viscometer and the multiple flow control circuits are connected with the microcontroller; and each flow control circuit is connected with one corresponding electric control valve. According to the technical scheme, manual material adding does not required; the workload of the worker can be reduced; and the work efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of medicine production, in particular to an automatic viscosity adjustment device in material stirring. Background technique [0002] In the production process of pharmaceuticals, chemical raw materials need to be stirred for a long time. Stirring can make the formula raw materials mix evenly and fully react. However, during the stirring process, the viscosity of the drug continues to rise, and when the viscosity is too high, it is necessary to add a solvent for dilution to reduce the viscosity so that the stirring can continue normally. If the solvent is not added in time when the viscosity is too high, the medicine will form hard lumps, which will affect the production of medicines. In severe cases, it is necessary to use tools to break the hard lumps before continuing to produce. At present, it is necessary to manually add solvents for dilution, which consumes the workload of workers and reduces product...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D24/02B01F15/00F16K31/02
Inventor 王晓勇孙明
Owner BEIJING HAIHETIAN TECH DEV
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