http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102852547-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bce90b663f6a85b5699a167fb7c8c5aa |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B7-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-25 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B10-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B10-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21F7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B10-61 |
| filingDate | 2012-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9f34cf72675ffce843c1aefafe9c48fd |
| publicationDate | 2014-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102852547-B |
| titleOfInvention | Drilling and cutting integrated outburst preventing and permeability improving system for mines |
| abstract | The invention discloses a drilling and cutting integrated outburst preventing and permeability improving system for mines. The system comprises a drilling machine, a drill stem and a drill, and further comprises a water tank and a high-pressure pump station. The drill is a drilling and cutting integrated drill, the drill stem is connected with a high-pressure rubber hose through a first rotary joint, an inlet of the high-pressure pump station is connected with the water tank, and an outlet of the high-pressure pump station is connected with the high-pressure rubber hose; the drilling and cutting integrated drill comprises a drill casing and a waterpower cutting component, a first drilling cutter is arranged on the outer side at the front end of the drill casing, and a first drainage channel is opened at the front end of the drill casing; and the waterpower cutting component comprises a waterpower spin cutting head, a first conduit and a second rotary joint which are connected successively, the waterpower spin cutting head is arranged on the inner side at the front end of the drill casing, a first limit mechanism and a second limit mechanism are arranged on the inner wall of the drill casing, and a nozzle is mounted on the waterpower spin cutting head. According to the drilling and cutting integrated outburst preventing and permeability improving system for mines, the device purchase and usage cost is reduced, the labor time and the labor cost are reduced, the pumping efficiency of coal-bed gas is improved, the practicability is good, and popularization and application values are high. |
| priorityDate | 2012-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.