LBY-3A Top Plate Separation Instrument Hongyi Brand Mining Rock Detection Top Plate Separation Indicator

Description :

　　LBY-3ARoof separation instrument, roof separation indicator, coal mine roof separation instrument

　　LBY-3ATop plate delamination instrumentSurvival through quality, development through reputation, we doLBY-3A Top Plate Separation InstrumentOur strategy is to seek quality, and our policy is to prioritize reputation.Top plate delamination indicatorQuality comes from, value comes from belief.

　　LBY-3ATop plate delamination instrumentProduct Usage

　　LBY-3ATop plate delamination instrumentIt is a specialized instrument for monitoring the displacement generated during the separation of roof rock layers, used to monitor the displacement of the roof (surrounding rock separation) and avoid roof collapse and collapse. The LBY-3A type roof separation indicator is mainly suitable for roadway roofs supported by anchor rods and cables, as well as working faces that require measurement of roof displacement. Providing coal mine engineering technicians and testing personnel with the determination of the length and tensile strength of anchor rods is a scientific basis for understanding the rationality and economy of the anchor rods and cables used.

　　LBY-3ATop plate delamination instrumentMain performance parameters:

　　1. Measurement method: Reflective color display

　　2. Reading accuracy: 1 mm

　　3. Installation anchor hole diameter: 28.42 mm

　　4. Measurement points: 2 (3)

　　5. Range: 200 mm

　　LBY-3ATop plate delamination instrumentStructural composition:

　　The top plate delamination instrument consists of four parts: hole holder, measuring wire, hole disk, and reading device

　　1. The orifice disk is composed of a plastic disc and a plastic tube. The disc is used to guide the water inside the hole, while the tube serves as the reference point for the reading device.

　　2. The reading device consists of two semi-circular steel bars with scale markings;

　　3. The measuring steel wire is connected to the internal fixator and the reading device by multiple thin steel wires with low flexibility and elasticity;

　　4. The hole holder adopts a spring claw structure

　　LBY-3ATop plate delamination instrumentInstallation steps:

　　Use a 28mm anchor drill bit to drill holes with a depth of 7m to 8m;

　　Deep base point: Use an installation rod to push the anchor of the deep base point into the hole until it reaches the bottom. After pulling out the installation rod, manually pull the steel wire rope to confirm that the anchor is stuck. The deep base should be fixed at a height of 7m to 8m above the top plate;

　　Align the screws at both ends with the scale: record the initial readings of the shallow and deep parts, secure them with screws, and cut off any excess steel rope.

　　LBY-3ATop plate delamination instrumentThe usage regulations

　　1. Shallow anchor points must be accurately positioned, and markings can be made on the installation rod in advance for this purpose;

　　2. The steel rope should be coiled in advance and unfolded one by one when pushed into the anchor to prevent entanglement and knotting;

　　3. Install an LBY-3 roof separation indicator every 5m-10m in the roadway; The installation position of the delamination indicator should not exceed 1.5m from the front, otherwise it cannot capture the entire process of roof delamination;

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