High pressure water jet automatic drilling and cutting collaborative system and method for coal seams

A high pressure water jet automatic drilling and cutting collaborative system for coal seams, characterized in that:

• the system comprises a drilling and cutting collaborative control platform (1), an automatically regulated slotting pump unit (2) and an automatically regulated drill (3);
• the drilling and cutting collaborative control platform (1) comprises a coalbed gas geology management system, a decision analysis system, a drilling and cutting collaborative execution system, a monitoring and feedback system, and an information management and evaluation system;
• construction operation parameter instructions issued by the drilling and cutting collaborative control platform are executed by the automatically regulated slotting pump unit and the automatically regulated drill;
• coal seam geological information is recorded by the coalbed gas geology management system, and coal seam type and outburst prevention measures are analyzed and judged by the decision analysis system based on the coal seam geological information;
• a construction operation command is sent to the drilling and cutting collaborative execution system by the decision analysis system to control the automatically regulated drill (3) to start drilling and control the automatically regulated slotting pump unit (2) to start slotting;
• drilling and cutting construction parameters of drilling spacing, drilling depth, slotting process and slotting radius are analyzed and determined by the decision analysis system based on coal seam basic parameter information provided by the coalbed gas geology management system;
• the drilling and cutting collaborative execution system is monitored by the monitoring feedback system to control operation parameter instructions and device performance indexes during drilling and slotting construction executed by the automatically regulated drill (3) and the automatically regulated slotting pump unit (2);
• slotting parameter feedback is sent to the automatically regulated slotting pump unit, drill parameter feedback is sent to the automatically regulated drill and the drilling and cutting collaborative execution system, and drilling and slotting parameter feedback is sent to the decision analysis system by the monitoring feedback system;
• timely adjustment is made by the decision analysis system according to construction data to re-adjust and formulate slotting parameters and send a slotting construction operation command;
• monitored parameters of drilling and slotting are also sent to the information management and evaluation system by the monitoring feedback system;
• the high pressure water jet automatic drilling and cutting collaborative system for coal seams also comprises roadway positioning sensors (4) and a wireless positioning slotting device (12), and the roadway positioning sensors (4) are arranged within a certain range of a roadway construction site;
• the automatically regulated slotting pump unit (2) is provided with a pump unit positioning receiver (2-1);
• the automatically regulated drill (3) is provided with a drill positioning receiver (3-1);
• the wireless positioning slotting device (12) is used for receiving a slotting positioning signal and monitor a slotting positioning angle of construction in boreholes;
• a certain distance is maintained among the roadway positioning sensors (4), the pump unit positioning receiver (2-1) and the drill positioning receiver (3-1), a signal is transmitted wirelessly to the automatic drilling and cutting collaborative system, and the system is automatically moved to a next construction site for construction according to a borehole construction spacing;
• a scalar quantity of gas extraction in the borehole within one month after completion of borehole drilling and cutting construction in all units is counted, and effective extraction radius of boreholes, coal seam gas extraction rate and coal seam extraction standard evaluation are analyzed by the information management and evaluation system to evaluate gas control effect in the units.