Turnkey autoclaved-aerated concrete (AAC) plant

Autoclaved-aerated concrete (AAC) blocks in high demand in the Krasnodar region

Fig. 1 The quartz sand, with the addition of water, is finely ground with quartz sand

Fig. 2 Binder silos: here, the binders lime, cement and gypsum are stored.

Fig. 3 Upon completion of the mixing process, the mass is poured into an oiled casting mold that stands in readiness, with its shutoff valve opened.

Fig. 4 Mixing tower with mixer discharge

Fig. 5 The filled casting mold is moved by transfer car into the fermentation chamber, where it is rocked by a rocking device in order to boost the reaction of the aluminum (gasification).

Fig. 6 Demolding: The mold frame is pulled off the plateau by a portal crane. Due to the conical walls of the mold, the cake can be easily removed from the casting mold.

Fig. 7 Tilting table: The tilting table tips the AAC cake into a vertical position on a cutting board.

Fig. 8 The upright standing cake travels through the pneumatically tensioned and staggered steel string arrangement of the horizontal cutter.

Fig. 9 The cutting wires of the cross-cutter, which are arranged staggered to suit the format, move through the green cake, oscillating and counter-rotating.

Fig. 10 The AAC cakes are autoclaved in horizontal position so that individual blocks stand on the autoclave pallet on their front-end, preventing them from sticking together during the autoclaving process.

Abb. 11 Several autoclaves operate time-delayed, and steam from one autoclave is transmitted to the next to partly reclaim heat.

Abb. 12 The W+K stacking method guarantees an optimal utilization of the vessel and immensely reduces energy costs.

Abb. 13 An autoclave pallet grab picks up the autoclave pallets and stacks them in the autoclave trolley according to a W+K stacking system especially developed for this purpose.

Abb. 14 Following autoclaving, the autoclave pallets are picked up by a portal grab unit from the autoclave trolley and transported to the third tilting table

Abb. 15 The hardened blocks are tipped onto the wooden pallet.

Abb. 16 Packing line for AAC blocks

Abb. 17 Two AAC block packages are tipped by the tilting table onto the readied wooden pallets.

Abb. 18 Following packing, a forklift moves the AAC blocks into the storage area ready for shipment.

The successful talks with one of the largest investors in the construction sector in the Krasnodar region led to the delivery of another turnkey autoclaved-aerated concrete (AAC) plant. The plant with an overall daily output of 972 m³ was erected on the site of an existing concrete plant to meet the rising demand for AAC blocks in the Krasnodar region.

Business relations with W+K Industry GmbH had already existed for some years. Apart from numerous projects and modernization measures that the company had carried our in existing plants, W+K Industry GmbH is also partner in the construction of a new and fully automated sand-lime brick plant.

“We believe in the technology and the personnel of W+K. Hand in hand we have completed many successful projects and look forward to a continued partnership,” declares Sergej Nikonenko, director of the stenovych Materialov Kubani combine.

The stenovych Materialov Kubani combine commissioned W+K Industry GmbH...