Industrial solid-liquid separator equipment

Industrial solid-liquid separators are mechanical equipment specially designed for effective separation of various solid-liquid mixtures in industrial production processes. They can separate solid particles from liquids, thereby achieving the purpose of waste reduction, resource recovery or wastewater discharge. These equipment usually have the characteristics of high efficiency, high degree of automation, and strong processing capacity, and are suitable for solid-liquid separation needs of various complex working conditions and different material characteristics. The following are several common industrial solid-liquid separators and their characteristics: 1. Spiral solid-liquid separators - Application areas: widely used in aquaculture (such as livestock and poultry manure treatment), agriculture (such as slag and sawdust separation), industry (such as biogas projects), etc. - Working principle: Using the pushing effect of the spiral blades and the filtering effect of the screen, the material is pushed forward by the rotation of the spiral shaft, and the solid-liquid separation is completed between the gaps of the screen. - Features: compact structure, small footprint, easy installation and maintenance, stable processing effect, suitable for processing materials with high solid content and moderate viscosity. 2. Vacuum belt filter - Application: Mainly used for the purification of wall slurry in construction projects, bridge pile foundation projects, underground tunnel shield projects and trenchless projects. - Working principle: Under the action of negative pressure (vacuum), the slurry passes through the filter medium (filter cloth), the solid particles are trapped on the surface of the filter cloth to form a filter cake, and the liquid passes through the filter cloth to become filtrate. - Features: It can effectively control the quality of the slurry, improve the porosity, reduce material consumption, achieve environmentally friendly transportation and discharge, and is suitable for continuous and large-scale slurry treatment. 3. Belt filter press - Application: Suitable for highly dry treatment of plant wet materials (such as paper sludge, wine lees, starch residue, etc.). - Working principle: The wet material is squeezed by the clamping rollers with multiple strong forces, and the water is forced to be discharged through the filter belt to form a solid slag cake with extremely low moisture content. - Features: Innovative design, high dehydration efficiency, especially suitable for processing materials with difficult solid-liquid separation, low solid content and the need to significantly reduce the moisture content. 4. Centrifugal solid-liquid separator - Application areas: including chemical, pharmaceutical, food, mining, environmental protection and other industries, such as chemical wastewater, oil-water separation, drilling mud, biological fermentation liquid, etc. - Working principle: Use centrifugal force to accelerate solid-liquid separation, and generate strong centrifugal force through the high-speed rotating drum, so that solid particles settle on the inner wall of the drum, and the liquid is thrown out radially. - Features: fast separation speed, high efficiency, large processing capacity, continuous operation, suitable for processing materials with large density difference between solid and liquid phases and wide particle size distribution. 5. Sedimentation type fully automatic scraper bottom discharge centrifuge - Application areas: such as industrial lubricants, chemical products, food processing and other fields, used for solid-liquid separation and dehydration. - Working principle: The material settles according to the density difference under the action of centrifugal force, and then the solid phase settled on the inner wall of the drum is scraped off and discharged by the automatic scraper. - Features: high degree of automation, easy operation, can handle materials with small solid-liquid density difference or fine solid phase particle size, and can maintain low solid phase moisture content. 6. Screen decontamination machine series - Application areas: pre-treatment links such as urban sewage treatment plants and industrial wastewater treatment stations. - Working principle: large suspended matter and floating matter in wastewater are intercepted by fixed or rotating screen structures. - Features: simple structure and convenient maintenance. It is divided into three types: coarse, medium and fine according to the screen gap, suitable for different treatment stages and suspended matter characteristics. 7. Membrane separation equipment - Application areas: including microfiltration, ultrafiltration, nanofiltration and reverse osmosis, suitable for fine chemicals, biomedicine, food and beverage, electronic semiconductors and other industries. - Working principle: using a semi-permeable membrane with selective permeability function to separate solutes or particles under pressure. - Features: high separation accuracy, no phase change, relatively low energy consumption, especially suitable for occasions with high separation purity requirements or the need to recover valuable components. When selecting industrial solid-liquid separator equipment, the following factors should be considered: - Material characteristics: including solid content, particle size, shape, density, viscosity, suspension stability, chemical properties, etc. of the solid-liquid mixture. - Processing requirements: such as separation efficiency, solid phase moisture content, effluent water quality, processing capacity, degree of automation, continuous or intermittent operation, etc. - Operating costs: including equipment purchase costs, operating energy consumption, maintenance costs, reagent consumption, labor costs, etc. - Environmental protection requirements: follow national and local environmental protection laws and regulations to ensure that there is no secondary pollution in the separation process, and the separation products meet the standards for disposal or resource utilization. Based on the above factors, select the solid-liquid separation equipment that best suits the specific application scenario and processing goals to achieve an efficient, economical and environmentally friendly solid-liquid separation process.