Stream Switch Microwave The flow switch is a microwave motion detector that utilizes the Doppler effect. The electronics emit a signal that is reflected by the moving material. When the material moves, the frequency of the return signal is either higher or lower than the frequency of the transmitted signal. If the frequencies of the two signals are the same, there is no motion at this time. The microwave flow switch measures the difference in frequency between the transmitted microwave and the reflected wave. Changes in the microwave energy that can be received (eg, due to accumulated material in front of the antenna) have no effect on the flow/no flow detection. The Microwave Flow Switch is a non-contact flow sensor ideal for detecting the flow of solid material from pipes, chutes, wind conveyors, vibrating troughs, belt conveyors and bucket elevators. Real-time flow information makes the air-to-air process more precise, which can: Reduce waste by automatically controlling the start and stop of the equipment to maximize the efficiency of equipment and energy utilization, thus: Saving energy The high efficiency of the microwave switch enables the factory to quickly recover investment. The microwave flow switch has no moving parts, which eliminates wear and maintenance and thus does not cause equipment failure. Microwave technology allows for non-contact installation without direct contact with process materials. The sensor is kept away from the unfavorable process site and is guaranteed to be used carefree for many years. Detecting microwaves through the pipe wall can penetrate insulating materials such as plastic, glass and wood, and the effects of these materials on microwaves are negligible. Therefore, the microwave flow switch has the ability to penetrate the insulated thick wall. A closure made of insulating material does not affect the signal. This makes the installation of the microwave flow switch very easy. The external installation keeps the process closed so that hazardous processes or high pressure/high temperature systems can be detected from outside safe areas. The wall thicknesses of various materials that attenuate the microwave intensity by half are listed. The microwave flow switch detects the flow condition even when the emitted microwave is weak. Building materials: cement (limestone, clinker, dolomite), plaster, wood chips. Chemistry: Additives, including fertilizers, powders, paints, plastic pellets, silica, etc. Food: coffee, fast food, tea, dried fruit, cereals, animal feed, etc. Energy: crushed coal, wall material wall thickness glass (window) wood (dry board) plastic (PVC, PE, PTFE) 25mm-51mm 13mm-25mm 100mm, almost no attenuation such as blockage, hopper emptying, hopper filling, etc. . This can prevent product changes from occurring due to improper feeding or forgetting ingredients. The microwave flow switch verifies that the volumetric feeder is working as required. Blockage, hopper emptying and hopper filling can be reliably detected. Detect abnormalities in the operation of the hopper discharge port, such as loose arching, rat holes, or slide gate valves, as well as easy monitoring of the steering valve. The microwave flow switch detects a bow or no flow due to excessive rat holes and signals to the hopper shaker or operator. It also monitors the operation of the gate/valve and avoids material loss, accidental discharge, or material flow through the wrong channel. Monitor the hopper discharge door with two microwave flow switches to ensure that the conveyor system is found early and avoid more damage. The conveyor is only operated when needed, thus reducing maintenance, reducing energy wastage and equipment wear. Installing a microwave flow switch in front of or behind the conveyor provides valuable information about the operation of the previous process and the next process equipment. Monitoring the conveyor point on the conveyor Monitoring the volumetric feeder Microwave flow switch Detector Steering valve Hopper Slider gate Detector Proper material flow during the process can detect the failure of the feed system as early as possible and avoid inefficient operation of the equipment. Blockages or failures in the sifter or grinder can also be detected. Take the necessary protective measures to prevent loss of production and product quality. Microwave flow switches installed on high-performance process equipment can indicate a variety of abnormal operating conditions. In addition to its significant efficiency, reliability and product quality, it also features safety measurements to prevent accidents. Monitor various stages of a process to detect any abnormal operating conditions in the wind conveying system to know changes in material characteristics, wear of the gate or feeder, and accumulation of moisture in the piping. The high-pressure transfer line does not affect the operation of the microwave flow switch. In hundreds of installations, the sensor can be successfully mounted to a pipe with a diameter of 38 mm or less. Injection through multiple injection points, sometimes it is necessary to control each conveyor line, because the inlet will not work properly if it is blocked (for example: coal monitoring of the blast furnace, wind injection system, microwave flow switch, dry grinding, screening, mixing process area Microwave flow switch microwave flow switch vent manifold/steering valve such as bag filter or cyclone. The working environment below the working index can be detected immediately. The surrounding environment, workshop and operator can better Be protected against accidents caused by damage to the filter bag.
