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When building shield tunnels, getting the exact pressure of the mining slurry is very important for both safety and efficiency. This kind of mud is usually made of water, soil, and other things that make it hard to measure pressure.
On the one hand, the strong abrasion of mud places extremely high demands on the durability of equipment;
On the other hand, measuring equipment is prone to blockage by mud, and both of these issues require targeted professional solutions to solve.
The demand for wear-resistant pressure sensors in mining mud pressure measurement
Wear resistant pressure sensors are the core configuration for measuring the pressure of mining mud. When mud flows at high speed in the pipeline of tunnel construction equipment, it will cause serious wear and tear on conventional pressure transmitters, so it is necessary to use measuring equipment designed specifically for harsh working conditions.
In addition, the physical properties of mining mud can easily cause equipment blockage, which in turn affects the normal operation of the transmitter and leads to measurement data distortion. This requires pressure transmitters not only to have anti blocking capabilities, but also to maintain stable and reliable measurement performance under complex working conditions.
Wear resistance diaphragm material
The mining mud pressure transmitter developed by Silver Automation Instruments is designed to address the pain points in the industry mentioned above. This transmitter is made of ceramic diaphragm material, which has excellent wear resistance and can perfectly adapt to the high abrasion environment of shield tunnel construction.
Half flat membrane structure of the pressure sensor to avoid clogging.
Semi flat membrane structure
Meanwhile, the semi flat membrane structure carried by the transmitter is a major highlight. This special design can prevent mud and mortar from blocking the pressure interface from the root, and even in extremely harsh working conditions, the sensor can operate stably and output accurate and consistent pressure data.
Half flat membrane structure: solving the problem of blockage from the root
The mining mud pressure transmitter of Silver Automation Instruments integrates cutting-edge technology and high-strength wear-resistant materials, fully meeting the stringent requirements of the shield tunnel construction industry. The following are the core technical parameters of this transmitter, which intuitively demonstrate its excellent performance:
Measurement range & pressure type
The transmitter has a wide measurement range and can be adapted to various application scenarios of mining mud pressure measurement. The maximum pressure resistance value can reach 70 bar. The specific range specifications are shown in the table below:
Measuring Range | 0-7 Kpa | 0-10 Kpa | 0-20 Kpa | 0-35 Kpa | 0-70 Kpa | 0-100 Kpa | 0-200 Kpa | 0-350 Kpa | 0-700 Kpa | 0-1Mpa | 0-2Mpa | 0-3.5Mpa | 0-7Mpa | 0-10Mpa | 0-20 Mpa | 0-35Mpa | 0-70 Mpa |
Pressure type | G/Y | G/Y | G/Y | G/A/Y | G/A/Y | G/A/Y | G/A/Y | G/A/Y | G/A/Y | G/A/Y | G/A/Y | G/A/Y | G/A/Y | G/A/Y | G/A/Y | G/A/Y | G/A/Y |
Pressure type:
A | Absolute pressure |
G Y | Gauge Pressure Sealed Gauge pressure (also for negative pressure) |
Measurement accuracy
High precision is the key to ensuring the reliability of pressure data, which directly affects the effectiveness of construction monitoring and control. The measurement accuracy of this pressure transmitter under Silver Automation Instrument can reach 0.075%~0.1%.
Temperature resistance performance
Heat dissipation device of the pressure sensor for High Temperature
The equipment is designed to adapt to the complex and ever-changing tunnel construction environment, and can operate stably over a wide temperature range. We usually equip transmitters with heat dissipation devices or cooling devices to withstand slurry high temperatures up to 350 ðC.
Pressure transmitter equipped with heat dissipation device: specially designed for measuring high-temperature mining or slurry.
Material Selection
Ceramic sensors greatly enhance the durability and wear resistance of the pressure sensor, making them an ideal choice for dealing with highly abrasive mining slurries. Compared to traditional pressure sensors, ceramic sensors have more outstanding wear resistance and are therefore widely used in mining pressure measurement scenarios.
Sealing performance
Adopting a high-quality sealed structure design, it can effectively prevent mud from seeping into the interior of the equipment, ensuring long-term stable operation of the transmitter and further improving equipment reliability.
Output signal from Pressure Transmitters
This pressure transmitter supports standardized output signals - a two-wire 4-20mA current signal, which can be easily integrated into various existing monitoring systems; at the same time, we can also provide MODBUS RTU RS485 communication protocol according to customer needs.
For shield tunnel construction practitioners, using the Silver automation instrument's mining slurry pressure transmitter can efficiently solve various problems in measuring mining slurry pressure. This can not only significantly improve the safety and operational efficiency of tunnel construction, but also greatly reduce the maintenance cost of equipment in the later stage by relying on the excellent durability of sensors.
In summary, a reliable and durable pressure measurement scheme is crucial in the field of shield tunnel construction. By choosing high-quality products such as Silver Automation Instrument Mining Mud Pressure Transmitter, the construction party can accurately obtain pressure data, effectively avoid equipment blockage risks, and comprehensively improve overall construction efficiency. In harsh application scenarios such as mining mud, investing in high-quality pressure measuring equipment is the key to achieving efficient construction and stable development for enterprises.
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