Crown Machinery Co., Ltd. Is a professional disc centrifuge/separator equipment manufacturer, disc centrifuge series including three-phase(liquid-liquid-solid separation)and two-phase(solid-liquid separation) type of centrifuge, suitable for the extraction of traditional Chinese medicine under various conditions and requirements. Adopted with varieties of water extract, semi-finished products and syrup products. To boiled and extracted liquid can enter the disc separator for separation after a coarse filtration equipment. The output of the centrifuge is basically consistent with that of the boiling and extracting equipment in front of the production plant. The separated impurities can be discharged from the sewage outlet at any time according to the impurity content. Each sewage discharge time is only about 25 seconds without shutdown. The separated liquid medicine can enter the concentration equipment for concentration, which reduces the settling time and ensures the continuity of the production process. At the same time, because it is hot liquid separation, the separated liquid can be concentrated, which eliminates the loss of hot steam from the original static sedimentation, improves the environmental sanitation, reduces the heating time and saves energy. The whole production process is carried out in closed pipes and containers. The machine has convenient operation and stable performance, which creates conditions for the mechanization and continuity of Chinese patent medicine production. It has a great effect on changing the production environment of pharmaceutical factories, civilized production, preventing bacterial contamination and improving medicine quality.

Edible Oil separation / extraction in the process of olive oil extraction, the main processing is  the centrifugal separation; centrifuge machine such as disc centrifuge(figure below) separates two liquid phase with different specific gravity from mixer of liquid and solid. This separation technology was first adopted by the olive oil press extraction industry from the late 1930s to the early 1960s, which completely upgrade the olive extraction technology. The separation process adopted disc centrifuge/disc separator, which is type of centrifugal separator; What we want to introduce at this process is the sedimentation centrifuge after stirring of olive fruit, in the sedimentation centrifuge, water, oil and fruit residue will be separated at this stage. These three phases named. -Oil phase: it is composed of 97% ~ 99% triglycerides and 1% ~ 3% other molecules. It accounts for more than 8% ~ 30% of fresh olive fruits, which varies according to the variety and maturity of olive fruits. -Moisture phase (vegetable water): it contains water and hydrophilic substances, such as salts, monosaccharides, etc. It accounts for about 50% ~ 60% by weight in olive pulp; water are about 92% ~ 95%, and the remaining 5% ~ 8% are hydrophilic substances (solids dissolved in water). -Hydrophobic solid phase (fruit residue): it is composed of organic semi mobile substances and broken fruit stones. It accounts for about 25% ~ 30% of the weight of olive paste; In the hydrophobic solid phase, about 75% are broken cores and 25% are fragments of cell walls of pulp and peel. Fragments of the cell wall of the pericarp.

People’s demand for natural food is continue increasing. The fruit was washed and crushed by belt filter press. The turbidity of final juice product be adjusted by a disc centrifuge, further more improve the stability of juice. With a series models of centrifuges that embed with the juice production line can perfectly perform the various fruit of cloudy juice. Clear juice process line, disc centrifuge is a kind of pre-treatment equipment for membrane filtration, which is used to separate fruit residue. Crown Machinery Co Ltd manufacture and supply all type of centrifuge, but also provide membrane filte for further filtration.

Crown Machinery Co Ltd design and manufacture varieties all kind of centrifuge that apply for pharmaceutical industry, specific in Chinese Traditional herb extraction. Supply all related equipment and machinery with herb extraction, also provide technology consultancy service. Natural medicines were the only option for the prevention and treatment of human diseases for thousands of years. Natural products are important sources for drug development. The amounts of bioactive natural products in natural medicines are always fairly low. Today, it is very crucial to develop effective and selective methods for the extraction and isolation of those bioactive natural products. This paper intends to provide a comprehensive view of a variety of methods used in the extraction and isolation of natural products. This paper also presents the advantage, disadvantage and practical examples of conventional and modern techniques involved in natural products research. ExtractionExtraction is the first step to separate the desired natural products from the raw materials. Extraction methods include solvent extraction, distillation method, pressing and sublimation according to the extraction principle. Solvent extraction is the most widely used method. The extraction of natural products progresses through the following stages: (1) the solvent penetrates into the solid matrix; (2) the solute dissolves in the solvents; (3) the solute is diffused out of the solid matrix; (4) the extracted solutes are collected. Any factor enhancing the diffusivity and solubility in the above steps will facilitate the extraction. The properties of the extraction solvent, the particle size of the raw materials, the solvent-to-solid ration, the extraction temperature and the extraction duration will affect the extraction efficiency. The selection of the solvent is crucial for solvent extraction. Selectivity, solubility, cost and safety should be considered in selection of solvents. Based on the law of similarity and intermiscibility (like dissolves like), solvents with a polarity value near […]

Instant tea is tea-leaves extracted with water solvent extraction, filtered by centrifuge, then concentrate and drying process. Instant tea is kind of solid powder that can quickly dissolve in water, maintains unique flavor of tea, but no tea residue. Instant tea can drink immediately, also can be used as raw materials in food and beverage industry. Crown machinery suggest to using membrane filter technology, increasing content of tea polyphenols in instant tea.

Crown machinery co ltd as a centrifuge manufacturer, received request from every trade, pharmaceutical always has GMP standard for design and manufacture of centrifuge equipment, thus crown machinery consider following subject: *Purification, cleaning and sterilization: Cleaning(CIP) and sterilization(SIP) technology of centrifuge equipment which is an effective method to control cross contamination, also require technical support of equipment structure and control. Materials, appearance and safety: the materials make contact with dealing material shall not affect the property, purity and quality, and shall be non-toxic, corrosion-resistant, and no chemical reaction with the substances in contact. *Online detection, control and verification: online detection and control is to meet the conditions of safety and continuous production, and need the application of advanced technologies such as digital display, analysis, recording, program control and alarm. Verification is a documented activity to systematically confirm the quality of pharmaceutical equipment, which includes four stages: design confirmation, installation confirmation, operation confirmation and performance confirmation. The user must pass the above verification before putting the equipment into use. The manufacturer of pharmaceutical of centrifuge equipment must be conformity of product design with GMP in the R & D stage.

Ethanol extraction is a liquid-solid separation process, with certain requirement of low temperature, treatment capacity. Crown machinery and our partner that cooperate to innovate a new type of vertical cannabis centrifuge, as a suitable equipment for ethanol extraction process in cannabis industry.

A production process of selenium citrate, which uses selenium carbonate or selenium oxide as raw material to react with edible citric acid to prepare selenium citrate, processed by concentration, centrifugural and drying to produce selenium citrate, which is by the following steps: dissolving food grade citric acid with water to form 30-40% citric acid aqueous solution, and heating to above 70 ° C ; Adding selenium carbonate or selenium oxide slowly into the citric acid aqueous solution in previous step for neutralization reaction to produce selenium citrate; The selenium citrate prepared in previous step is poured into a blender and stirred for 30 ~ 35min,  then put into a centrifugal dehydration via separator; The dehydrated selenium citrate was obtain by fed into 85 ~ 90 ° Selenium citrate was obtained by drying for 90 ~ 100min in the drying oven. Centrifuge serve the purpose of material dehydration, through physical way provide sage and efficient solution of material dehydration, not only for selenium citrate, also capable for other industry.