ZKBY-2 Roof Separation Instrument Working Principle

ZKBY-2 Roof Separation Instrument—

The roof separation instrument produced by Taian Jiufang Mining Equipment Co., Ltd. is a device used to monitor the displacement generated when the rock layers of a coal mine roof separate. It can monitor roof separation displacement and subsidence to prevent roof accidents. The instrument features high precision, intuitive display, low cost, simple installation, and time-saving and labor-saving observation. It provides coal mine engineers and inspection personnel with the necessary basis to understand the length and tensile strength of anchor bolts, as well as to determine the appropriate and economical types of anchor bolts and cables to be used. The roof separation indicator reflects the values of multiple fixed devices within the roof borehole, which change with rock layer movements, onto a reading device installed on the roof surface via measuring steel cables.

Roof Separation Instrument Parameters:                
1. Measurement Method: Reflective color label direct reading;

2. Number of Measurement Points: 2;

3. Deep Base Point Range: 200 mm; Shallow Base Point Range: 150 mm;

4. Reading Accuracy: 1 mm;

5. Installation Anchor Hole Diameter: 30-42 mm.

6. Deep Base Point Steel Cable: 10 m; Shallow Base Point Steel Cable: 5 m; customizable.