Mixer and mixing unit for mixing a paste

Abstract

A mixer and a mixing unit for mixing and handling industrial side-stream materials. The mixer (6) is arranged onto a movable work machine (5) and it is used for mixing at least two side-stream materials to form a geopolymer. The mixer (6) comprises: a bucket part (27) for loading and transferring the side-stream material; a mixer apparatus (26) for mixing the side-stream material which has been loaded into the space delimited by the bucket part (27); a connecting device (25) for connecting the mixer (6) to a boom of a work machine (5); and at least one measuring device (S1, S2, S3) for determining properties of the material in the mixer (6).

1 . A mixer for mixing an industrial side-stream material in the manufacture of a geopolymer,
 characterized in that the mixer comprises:   a bucket part for loading and transferring the side-stream material;   a mixer apparatus for mixing the side-stream material which has been loaded into the space delimited by the bucket part;   a connecting device for connecting the mixer to a boom of a work machine; and   at least one measuring device for determining properties of the material in the mixer.   
     
     
         2 . The mixer according to  claim 1 , characterized in that the bucket part of the mixer is an open-top structure, whereby the mixer is arranged to receive material from an upper feed station. 
     
     
         3 . The mixer according to  claim 1 , wherein the mixer is tiltable from a mixing position to an unloading position, in which unloading position the material located in the mixer is arranged to flow out from the bucket part by the effect of gravity. 
     
     
         4 . The mixer according to  claim 1 , wherein the mixer apparatus of the mixer is operatable during the unloading. 
     
     
         5 . The mixer according to  claim 1 , wherein the mixer comprises at least one vibrator device facilitating the unloading of the bucket part. 
     
     
         6 . The mixer according to  claim 1 , wherein
 the mixer comprises at least one horizontal mixer shaft which is rotatable by means of a rotation motor about its longitudinal axis; and   the mixer shaft is provided with a plurality of mixer blades having mixing surfaces in an angular position relative to the longitudinal direction of the mixer shaft.   
     
     
         7 . The mixer according to  claim 1 , wherein
 the mixer comprises two horizontal mixer shafts which are rotatable by means of at least one rotation motor about their longitudinal axes;   the rotation directions of the mixer shafts are opposite to each other;   each one of the mixer shafts is provided with a plurality of mixer blades having mixing surfaces in an angular position relative to the longitudinal direction of the mixer shaft; and   the mixer blades of the adjacent mixer shafts are provided at axially different locations relative to each other, such that the mixer blades of the adjacent mixer shafts are partly overlapped.   
     
     
         8 . A mixing unit, for mixing an industrial side-stream material in the manufacture of a geopolymer,
 characterized in that the mixing unit comprises:   a movable work machine provided with a boom;   a mixer connected to said boom, and which mixer is as defined according to  claim 1 .