摘要:
This invention relates to a process for converting silica to polysilicate gels or hydrogels by combining an aqueous silica source with a CO 2 feed stream as the gel initiator, whereby the reaction stream is propelled at high velocity and turbulence maintaining the CO 2 uptake rate in the reaction stream. The invention also relates to a process for converting silica to polysilicate by pre-carbonating water at pressures of equal to or greater than 100 psig before initiating the polysilicate reaction.
摘要:
A resin bonded mine roof bolt (10) having an elongated rod with a first end (14), a second end (16), and a resin control surface (24) positioned on the rod between the rod first and second ends. The resin control surface has a channel (30) extending along the length of the bolt for distributing resin and interrupted spiral threads for mixing resin. When installed in a mine roof bore hole with curable resin, the resin control surface mixes the resin and partially fills the bore hole to minimize the amount of resin needed to anchor the bolt.
摘要:
A mine bolt for a bore hole in a roof of a mine. The bolt comprises a tube having a cross-sectional diameter less than that of the bore hole, a hollow interior, a first end, and a second end having an opening in communication with the hollow interior. The bolt comprises a flange disposed adjacent to the second end. The bolt can include an anchor means implaced in the tube and an elongated member disposed in the tube and extending from the anchor means out the tube to the second end. A method for supporting a mine roof. A method of forming a mine bolt.
摘要:
This invention relates to a process for converting silica to polysilicate gels or hydrogels by combining an aqueous silica source with a CO 2 feed stream as the gel initiator, whereby the reaction stream is propelled at high velocity and turbulence maintaining the CO 2 uptake rate in the reaction stream. The invention also relates to a process for converting silica to polysilicate by pre-carbonating water at pressures of equal to or greater than 100 psig before initiating the polysilicate reaction.
摘要翻译:本发明涉及通过将水性二氧化硅源与CO 2 CO 2原料流组合作为凝胶引发剂将二氧化硅转化成聚硅酸盐凝胶或水凝胶的方法,由此反应流以高速度和湍流维持推进 反应流中的CO 2摄取速率。 本发明还涉及通过在开始聚硅酸盐反应之前将等于或大于100psig的压力的水预碳酸化来将二氧化硅转化为聚硅酸盐的方法。
摘要:
A mine roof bolt for a grouted bore hole in a roof of a mine. The mine roof bolt includes an elongated member having a cross-sectional diameter less than that of the bore hole, a first end, and a second end. The elongated member has deformations such that axial tension on the bolt results in axial movement between the elongated member and the grout and results in confined compression of the grout between the bore hole and the elongated member surface to facilitate anchorage of the elongated member with grout to the mine rock in which the bore hole is disposed. The mine roof bolt includes a flange disposed adjacent to the second end. A method for supporting a mine roof. A method of making a mine roof bolt.
摘要:
A mine roof bolt for a grouted bore hole in a roof of a mine. The mine roof bolt includes an elongated member having a cross-sectional diameter less than that of the bore hole, a first end, and a second end. The elongated member has deformations such that axial tension on the bolt results in axial movement between the elongated member and the grout and results in confined compression of the grout between the bore hole and the elongated member surface to facilitate anchorage of the elongated member with grout to the mine rock in which the bore hole is disposed. The mine roof bolt includes a flange disposed adjacent to the second end. A method for supporting a mine roof. A method of making a mine roof bolt.
摘要:
A mine bolt for a bore hole in a roof of a mine. The bolt comprises a tube having a cross-sectional diameter less than that of the bore hole, a hollow interior, a first end, and a second end having an opening in communication with the hollow interior. The bolt comprises a flange disposed adjacent to the second end. The bolt can include an anchor means implaced in the tube and an elongated member disposed in the tube and extending from the anchor means out the tube to the second end. A method for supporting a mine roof. A method of forming a mine bolt.
摘要:
The invention is related to a coating delivery system (200) that includes at least one pressure vessel (202) having an inner surface, a flexible bladder (206) disposed in a first pressure vessel (202) and having an open condition and a closed condition, an internal region disposed between the inner surface and the bladder (206), and a deliverable substance including a coating component interspersed with at least one of liquefied carbon dioxide and supercritical carbon dioxide. The deliverable substance (208) is disposed in one of the flexible bladder and the internal region (210), and the pressure-conveying fluid is received in the other to exert pressure on the deliverable substance (208) and thereby permit transport thereof when the flexible bladder (206) is in the open condition.