Animal oil separator

Animal oil refining separator is a kind of equipment specially used for extracting oil from animal fat. Its working process includes heating and refining animal fat and subsequent separation operation. The following is the working principle and main steps of animal oil refining separator: Working principle overview: 1. Heating and refining: First, the collected animal fat (such as lard, tallow, mutton, etc.) is placed in the refining equipment for heating. The purpose of refining is to soften and melt the fat tissue, and at the same time promote the better separation of oil and non-oil components (such as protein, water, impurities, etc.). 2. Oil separation: The mixture after refining (liquid fat and dissolved impurities) is sent to the separation device. Common separation methods include physical separation (such as centrifugal separation, filtration separation) and chemical separation (such as alkali refining, acid refining). Physical separation mainly depends on the difference in physical properties (such as density, solubility, viscosity, etc.) between oil and impurities; chemical separation changes the chemical properties of oil and impurities by adding specific chemical reagents to promote separation. 3. Purification and refining: The separated crude oil may need further purification and refining process to improve the purity, color, flavor and stability of the oil. This includes degumming, deacidification, decolorization, deodorization and other steps, and may use adsorbents, distillation, crystallization and other technologies. Specific operation steps: 1. Pretreatment: The collected animal fat may contain impurities such as bones, skins, hair, etc., and preliminary cleaning is required, such as cutting, screening, magnetic separation, etc., to reduce impurities in the subsequent refining and separation process. 2. Refining: The cleaned fat is placed in a refining pot or reactor and heated by steam, electric heating or thermal oil. The refining temperature is generally controlled between about 100℃ and 200℃ to ensure that the fat is fully melted and not over-oxidized. During the refining process, water evaporates, some impurities are discharged with the steam due to their low boiling point, and some impurities are precipitated due to reduced solubility in fat. 3. Solid-liquid separation: The fat liquid after smelting is cooled (sometimes a coagulant is added) or directly sent to a centrifuge for solid-liquid separation to separate fat particles from liquid oil. Centrifugal separation uses the centrifugal force generated by high-speed rotation to separate fat particles of different densities from oil. The oil gathers upward, while the fat particles sink or are pushed to the edge of the equipment by the spiral for discharge. 4. Clarification and filtration: The oil obtained by preliminary separation may contain tiny solid particles or incompletely separated fat particles. It is necessary to clarify by standing or filter through filter cloth or filter element to further improve the clarity of the oil. 5. Refining: For products with higher requirements, such as edible oil, a refining process is also required. Including: - Degumming: Add hot water or electrolyte solution to condense and separate the colloid. - Deacidification: Use alkali solution to neutralize free fatty acids to produce soap stock that is easy to separate. - Decolorization: Adsorb pigments through activated carbon or other adsorbents, or use bleaching earth for chemical adsorption and decolorization. - Deodorization: Heat the oil under vacuum conditions to volatilize and capture the odor components. 6. Cooling and packaging: The refined oil is cooled to a suitable storage temperature, and then filled, sealed, labeled and marked in preparation for sale or further processing. In summary, the animal oil separator is a complex system that integrates multiple functions such as refining, separation, and refining, aiming to efficiently and safely convert animal fat into high-quality oil for edible or industrial use. The entire process requires strict control of parameters such as temperature, time, and the amount of chemical reagents added to ensure product quality and production efficiency.