Understanding Concrete Reclaiming: A Three Part Tour of an Installation at a Ready Mix Plant, Pt. 2

Part 2: Processing Returned Concrete

Ok, so now we'll go inside and take a look at the two chambers in the BIBKO 4000. The first of which is the buffer. Inside the buffer we see plows and urethane shoes. These plows take all of the concrete being discharged by the drivers and move it into the paddle wheel and these buckets. The buckets turn and they pick up the material and discharge it into this chute that then takes it from the buffing chamber that then drops it into the wash chamber. Concrete from the buffer is moved into the second chamber or the wash chamber, where the buckets drop it onto a chute. All the concrete is dumped into that wash chamber and as it's moved across the bottom of the wash chamber through a series of urethane shoes and these steel plows. It's further separated and washed so now you're separating your sand, your stone, your water and your cement until it gets to this second row of buckets. The first paddle wheel as solid buckets, the second paddle wheel as solid buckets so the water can drain, while those buckets lift the material out of the water and onto an incline screw, which then discharges the material onto a screen. The incline screw coming out of the BIBKO is designed identically to the PDC that we looked at outside for pump trucks. The difference being we don't have quite the tolerance between the urethane blanket and the flights on the screw. We have about a half inch clearance and that's designed so the water can flow back into the BIBKO and we can have as dry as possible material coming out onto the screen above. The important aspect of any reclaimer is the maintenance process and BIBKO has designed that into each and every unit that they make. Something as simple as the water level, you'll notice here that the chute is about six inches below; if you can see where that chute drops down into one of the pits. It's about six inches below where the shaft is. Well what does that mean? It means that your bearings and your seals are out of the muck. Believe it or not, not ever manufacturer designs it that way. They've got their bearings and seals sitting in this muck and that really shortens the life. They're not easy to replace and they're expensive, so BIBKO's gone that extra mile for you making sure that you can extend the life of your equipment. BIBKO provides laminated lubrication charts in close proximity to the lubrication points, such as this zerk fitting right here. So your personal know when and where to lubricate critical components. This is the MCC or motor control center for the BIBKO. This is the brains of the system. Here we have housed the PLC, all the starters, the breakers, all the level indicators, all the transformers. This comes completely prewired from the factory and it can be wired for 230 or 460 volts dependent upon your individual requirements.