Extraction equipment quality appraisal

extraction device is a tool used to extract and separate chemicals from mixtures. It is widely used in pharmaceutical, chemical, food and beverage and other fields.

extraction equipment separates the required chemical substances through the physical or chemical action of the extraction liquid, solid phase material or gas. Extraction equipment mainly includes centrifugal extraction machines, rotating disk extraction towers, extraction tanks, etc.
commonly used extraction equipment mainly includes rotary distillers, batch extractors, countercurrent extraction equipment, ultrasonic extractors, microwave extractors, etc.
In the case of extraction equipment quality appraisal, Zhongke Testing can provide extraction equipment quality appraisal services.

extraction equipment is divided into liquid-liquid extraction, solid-liquid extraction, supercritical fluid extraction and molecular sieve adsorption extraction.

JB/T 7243-2010 Centrifugal extractor model compilation method
JB/T 11095-2011 Centrifugal extractor technical conditions
JB/T 9552.9-1999 Chemical analysis method of copper-chromium-zirconium alloy Methyl isobutyl ketone extraction--Molybdenum blue photometric method for determination of silicon
JB/T 20136-2011 Supercritical CO2 extraction device
JB/T 9220.9-1999 Chemical analysis method for acidic slag of foundry iron furnace Phosphovanadium molybdenum yellow-methyl isobutyl ketone extraction photometric method for determination of phosphorus pentoxide content

After installation and debugging, the extraction equipment purchased by a heavy industry company failed to operate effectively and normally and had safety risks. It did not meet the technical requirements agreed in the agreement, and a dispute arose with the equipment manufacturer.
was entrusted by the court to conduct an appraisal and analysis on "whether there are quality problems" with the extraction equipment involved in the case.
appraisal analysis results: The
appraisal analysis expert group discussed the relevant information and on-site investigation of the extraction equipment involved in the case and made a comprehensive quality technical analysis, and made the following suggestions and conclusions:
The extraction equipment involved in the case has welding spatter and material pitting defects on the inner wall surface of the material barrel, and the welding surface of the inner wall has defects such as undercuts, welding nodules, and dents, which do not meet production and use requirements and industry standards. In addition to the material barrel,
's core accessories, the regulating valve, do not work properly. Both the manual valve and the pneumatic valve have the problem of air leakage after closing. This quality problem may cause the risk of suffocation and frostbite.
The three electric hoists hoisted the material barrel and deviated greatly from the center vertical line, resulting in frequent breakage and deformation of the sealing ring of the material barrel, flattening and air leakage.