Abstract
In order to improve infusion into the solid coal, attempts were made to effect this through several holes using a single pump; however, the regulation of the quantity of water directed into each hole by a ball-valve tap connected to the injection pump was shown to lack precision - gives the causes of this defect. Satisfactory regulation was obtained by means of pressure- independent flow valves which operate on the principle of hydrodynamic pressure balance; describes method of operation. Underground tests proved satisfactory even with large pressure variations. The problem of dirt penetration during down times was eliminated by installing a check valve. The system proves economical to run.
Citation Formats
Goretz, H G, and Betting, K.
Infusion of the solid coal using pressure independent valves to regulate flow.
France: N. p.,
1979.
Web.
Goretz, H G, & Betting, K.
Infusion of the solid coal using pressure independent valves to regulate flow.
France.
Goretz, H G, and Betting, K.
1979.
"Infusion of the solid coal using pressure independent valves to regulate flow."
France.
@misc{etde_5531229,
title = {Infusion of the solid coal using pressure independent valves to regulate flow}
author = {Goretz, H G, and Betting, K}
abstractNote = {In order to improve infusion into the solid coal, attempts were made to effect this through several holes using a single pump; however, the regulation of the quantity of water directed into each hole by a ball-valve tap connected to the injection pump was shown to lack precision - gives the causes of this defect. Satisfactory regulation was obtained by means of pressure- independent flow valves which operate on the principle of hydrodynamic pressure balance; describes method of operation. Underground tests proved satisfactory even with large pressure variations. The problem of dirt penetration during down times was eliminated by installing a check valve. The system proves economical to run.}
journal = []
volume = {1}
journal type = {AC}
place = {France}
year = {1979}
month = {Jan}
}
title = {Infusion of the solid coal using pressure independent valves to regulate flow}
author = {Goretz, H G, and Betting, K}
abstractNote = {In order to improve infusion into the solid coal, attempts were made to effect this through several holes using a single pump; however, the regulation of the quantity of water directed into each hole by a ball-valve tap connected to the injection pump was shown to lack precision - gives the causes of this defect. Satisfactory regulation was obtained by means of pressure- independent flow valves which operate on the principle of hydrodynamic pressure balance; describes method of operation. Underground tests proved satisfactory even with large pressure variations. The problem of dirt penetration during down times was eliminated by installing a check valve. The system proves economical to run.}
journal = []
volume = {1}
journal type = {AC}
place = {France}
year = {1979}
month = {Jan}
}