Current position >About Us
1. Equipment needs to be installed on the underground filling pipeline, including flow metering, pressure monitoring, valve control, filtration, and mixing equipment, to ensure a stable and efficient filling process. 1. Introduction to flow measurement equipment: commonly used electromagnetic flow meters (using electromagnetic induction to measure the flow of conductive liquids) or ultrasonic flow meters (calculating flow velocity through ultrasonic propagation time). Function: Accurately measure the flow rate of filling materials, support dynamic adjustment of flow rate and dosage, ensure filling uniformity and quality standards
2. Introduction to pressure monitoring equipment: Pressure sensors (pressure signal converted to electrical signal) and pressure gauges (intuitive numerical display) are typical configurations. Function: Real time monitoring of pipeline pressure changes, prevention of high pressure damage or low pressure blockage problems, ensuring filling continuity. Valve introduction: such as gate valve (fully open/fully closed control), ball valve (quick switch seal), butterfly valve (simple structure and easy operation). Function: Adjust flow rate and on/off control, adapt to the operational needs of different filling stages, and improve system flexibility.
4. Filter Introduction: Most of them are filter type mechanical filters that intercept large particle impurities.
. Function: To prevent foreign objects from blocking the pipeline, reduce equipment wear and reduce the risk of downtime.5. Mixer Introduction: Static mixer is mainly used, with built-in components to enhance the mixing effect of materials.
. Function: Improve the uniformity of the filling material, optimize the strength and stability of the solidified filling body.2. Hello! How to make a joint drainage test report for coal mines?
1. Joint trial operation time: April 25, 2009
2. Participants: Group company: Coal mine: Main drainage system overview: The main drainage system is equipped with 4 multi-stage centrifugal clean water pumps of model 200D43 × 8, with rated operating conditions: rated flow rate: Qe=288m3/h, rated head: He=326m, efficiency: η b=80%, equipped with electric motor: YB2-4004-4, rated voltage: Ue=6KV, rated power: Pe=450KW, rated current: Ie=51A, rated speed: ne=1480rpm, power factor: COS φ=0.8, motor efficiency: η=0.9181 There are two seamless drainage main pipelines (ф 273 × 7) laid in the auxiliary shaft to discharge the underground water to the surface purification station water storage tank
III. Joint trial operation testing method:
IV. Pump flow testing: Install an ultrasonic flowmeter on the gentle section of the wellhead drainage pipe, paying attention to the placement of the inlet and outlet positions of the flow, and removing rust spots on the surface of the pipeline.
. And polish it smooth, apply a layer of lubricating grease to the position where the generator and receiver are placed, and tie the center line of the tester parallel to the center line of the pipeline. The processor analyzes and processes the sampled data, displays the tested traffic on the LCD layer, and prints it. 5. Comprehensive testing of water pump: BCY-2 pump efficiency tester is used to determine the comprehensive performance of the water pump. The pressure sensor and temperature sensor installed at the inlet and outlet of the water pump are used to transmit the inlet pressure, inlet