The common form of the shotcrete is a, b, c, d, f, g, h, k and so on. Among them, the various joints are divided into direct, 90 degree bending and 120 degree bending. A type is a flat seal type, d is a spherical seal type, generally with the c-type use, c-type 24.60. And 74 degrees ;; b type is a card-type connector, and 24 degrees c type match; f is a Disc type joints, with two pieces of clips fixed in a plane sealed, mostly used in construction machinery; g-type 3, respectively, 24,60, and 74 degrees, with the same degree of c-type matching seal; h Is a 24-degree g-shaped cone in the processing of a sealing groove, and 24 degrees c-type seal; k-type is a quick-change connector, it is not nut fastening, the use of piston Gaga Xiao seal method to facilitate the replacement , Commonly used in coal mines.
Spray pipe installation Note:
First, when installing the spray pipe, do not let the spray pipe twist, or when the pressure will damage the spray pipe or the connection slip.
Second, when the bending radius of the spray pipe is too small, it should be noted that the more reasonable approach is to use the right angle joints to avoid sharp bending of the spray pipe.
Third, when the spray pipe pressure, the length of the spray pipe will change, if the inside of the sintering pipe within the wire layer is large, the length of the pressure spray pipe will become shorter. On the contrary the trip is small, the length of the spray pipe will be longer. The general product somewhat wrong, so variable length can not be shortened. If the spray pipe installed after bending place, should not be in the bending pipe bending position plus any fixed device, should make the spray pipe free movement, once fixed dead, easy to cause buckling at the wear and tear intensified.
Fourth, in order to avoid the destruction of the spray pipe and flow is limited, the bending radius of the spray pipe should be increased as much as possible.
5, when installing the spray pipe, remember not to let the spray pipe twist, or when the pressure is easy to damage the spray pipe or let the buckle joints loose.
6, the installation of objects between the spray pipe, should leave some space to avoid the spray pipe in the operation with the object friction, if not avoided, try to do some protective measures, such as with the spray pipe sheath, retaining spring and so on.