Introduction, characteristics and applications of sintered diamond filter elements

　　I. Sintered drill filter element Introduction

　　What I'm going to introduce to you today Sintered drill filter element is a new type of filter material. From the appearance alone, it is a stainless steel sintered mesh. From the cross-section, it can be seen that this is a special double-layer multi-layer metal mesh. In order to ensure the overall strength and rigidity, it also needs to undergo vacuum sintering, so it should be named a sintered filter.

　　II. Characteristics of sintered drill filter elements

　　1. High strength and good rigidity: High mechanical strength and compressive strength, good processing, welding and assembly performance, easy to use.

　　2. Uniform and stable precision: Provides uniform and consistent filtration performance for all filtration precisions, and the mesh remains unchanged during use.

　　3. Wide range of application environments: Can be used for filtration in temperature environments of -200~600 and acid-base environments.

　　4. Excellent washing performance: Good backwashing effect, reusable, long service life (can be cleaned by backwashing, filter, ultrasonic, melting, baking, etc.).

　　 Sintered drill filter element It is a general term for small filters. For sintered felt filter elements, it can be reused many times, the filter element has a long service life, and it can effectively reduce production costs. Sintered drill filter elements are made of metal, have good wear resistance and rigidity, and are not easy to deform during use. Cleaning is easy. It is an economical and convenient solution not only in industry, but also in air ventilation and air conditioning water intake equipment. It is made of multiple layers of metal expansion mesh, has strong dust removal ability, and the metal filter has low resistance and is easy to repeatedly clean. The main materials of sintered drill filter elements are generally made of high-efficiency filter materials such as stainless steel mesh, sintered felt, honeycomb core, and sintered mesh.

　　III. Main uses

　　1. High-temperature environment used for dispersed cooling materials;

　　2. Gas distribution, used for liquid bed perforated plate materials;

　　3. High-precision, high-reliability high-temperature filter materials;

　　4. Used for high-pressure backwashing oil filters.

　　Working principle:

　　Different liquids have different saturated vapor pressures. At a temperature of 70, water begins to boil at a pressure of about 30 kPa, while oil boils only at a low pressure of 5 Pa. At the same temperature, the saturated vapor pressure of oil is much lower than that of water. Therefore, by reducing the pressure on the surface of the oil liquid to below the saturated vapor pressure of water through vacuum, the water in the oil liquid will violently vaporize and overflow from the oil in the form of steam. Through the suction of the vacuum, the oil liquid enters the vacuum cylinder from the top, is sprayed through the nozzle, the water in the oil liquid vaporizes in the vacuum chamber, is extracted by the vacuum pump, and the oil liquid after water removal is discharged from the bottom. A lipophilic material is filled in the middle of the vacuum chamber to disperse the sprayed oil liquid to the surface of the filler, forming a thin oil film, increasing the gas-liquid two-phase interface area, and extending the time the oil liquid stays in the meteorological space.

　　It can not only be used as a filter medium for filtering devices such as basket filters and mesh filters, but also stainless steel sintered drill filter elements have many excellent properties such as high filtration accuracy, high temperature resistance, corrosion resistance, mechanical strength, processability, and service life, so they are increasingly used in the separation field of products and process media in the petrochemical industry.