Disadvantages of low temperature vacuum concentration equipment

Disadvantages of low temperature vacuum concentration equipment

Advocating low-energy, high-efficiency production concepts, low-temperature vacuum concentrating equipment in Chinese medicine production, bringing great opportunities for equipment research and development enterprises, but domestic products still have several major deficiencies, and need to be developed and upgraded. .

When many users use low-temperature vacuum concentrating equipment, concentrators often cause material to run due to droplets.

Disadvantages: During the concentration process, some materials contain easily foaming proteins, polysaccharides and other ingredients. If not handled properly, the foam will carry a large amount of material along with the vacuum pipe. As a result, the loss of materials and the yield rate are reduced, and the materials in the droplets adhere to the surface of the condenser to form a stubborn scale, which causes a decrease in heat exchange efficiency and an increase in energy consumption.

Disadvantages 2: If the material enters the vacuum system in the form of droplets, it will reduce the efficiency of the overall concentration system, putting pressure on the production and cost of the enterprise. Therefore, solving the problem of running materials in low-temperature vacuum concentrating equipment is the key to ensuring high-efficiency operation of equipment.

Disadvantages 3: Drainage is not complete

The condensate discharge system of the low-temperature vacuum concentrating device often relies on manual observation of the level of the liquid level in the sight glass, and the operation of discharging the condensed liquid is realized by switching the valve. Since the condensed liquid is dynamic, it is easy to cause the signal of the liquid level sensor to be unstable, and the drain pump is frequently activated and damaged. And the condensate removal system of many equipment on the market will have incomplete drainage.

The liquid that has reached a certain level after condensation is discharged. The condensed liquid is discharged by a manually controlled or automatically controlled drain pump using a lower energy consumption.

Disadvantages 4: Pressure mirror fogging, bursting

When the temperature difference between the spray liquid and the sight glass is large, the drawback of bursting is likely to occur.

In response to this problem, an anti-fog pressure mirror has been developed. It is reported that the anti-fog pressure mirror spray liquid will be sprayed on the sight glass after preheating, which reduces the temperature difference between the spray liquid and the sight glass, eliminating the mirror stress difference and greatly reducing The hidden danger of the mirror burst.

Disadvantages 5: difficulty in cleaning material residues

Due to structural reasons, material residues in the equipment often cause problems in cleaning. If the cleaning is not complete, it will easily cause pollution in the next operation, which will bring hidden dangers to product quality. Therefore, improving the structure and making the material residue cleaning more convenient has become a problem that many manufacturers need to think about.

Xiangxiang Machinery contains the trap cover in the running device as a quick-loading form. After opening, it can conveniently clean or replace the inner cylinder after it is raised, which greatly reduces the difficulty of cleaning.