Pieza de agregado tubular para recepcion en un dispositivo de mezclado para dosificacion controlada de un aditivo a una mezcla bombeable que comprende una seccion de mezclado, y en donde en la pieza de agregado esta presente al menos un elemento de sellado, donde ademas al menos un elemento de sellado se diseña con referencia a un eje longitudinal de la pieza de agregado como un cierre axial; elemento de cobertura; conjunto de aparatos; uso de una pieza de agregado tubular.

摘要

#CMT# #/CMT# The admixture piece (100) has a mixing section for guiding a pumpable mixture. An opening (103) that opens out into the mixing section is attached to a wall of the piece for feeding an admixture into the mixing section. A sealing element establishes fluid-tight connection between the piece and a mixing device. The sealing element is provided as an axial seal i.e. tubular sealing lip (110), with respect to a longitudinal axis of the piece. The axial seal is arranged at a front side of a flange (105). A single-piece cast body is made of plastic with hardness of 50-120 shore-A. #CMT# : #/CMT# Independent claims are also included for the following: (1) a housing element of a mixing device for controlled metering of an admixture into a pumpable mixture i.e. pumpable hydraulic hardening mixture e.g. sprayed concrete composite (2) a set including a tubular admixture piece and a housing element. #CMT#USE : #/CMT# Tubular admixture piece for use in a mixing device for controlled metering of an admixture into a pumpable mixture i.e. pumpable hydraulic hardening mixture e.g. sprayed concrete composite (all claimed) such as wet, earth-moist or dry sprayed concrete composite. #CMT#ADVANTAGE : #/CMT# The sealing element is provided as the axial seal i.e. tubular sealing lip, with respect to the longitudinal axis of the admixture piece, thus simplifying handling of the admixture piece during assembly and disassembling of the piece in the housing element of the mixing device, and enabling reliable sealing of the piece while effectively avoiding jamming of a sealing element of the admixture piece in the housing element. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a sectional view of a housing element equipped with a tubular admixture piece and connected with a delivery hose and a sprayed concrete nozzle. 100 : Tubular admixture piece 103 : Opening 105 : Flange 110 : Tubular sealing lip 400 : Connecting nozzle.