The mixer discharge location is generally dictated by the installation requirements for the mixer and the type and location of the equipment the mixer will discharge into. Hayes & Stolz will locate the discharge as required to satisfy these requirements and will also design and manufacture the ribbon or paddle assembly to sweep the product toward the opening promoting full discharge of the mixed product. The most common discharge locations are bottom end (preferred) and bottom center.
Flat Slide or Curved Slide Gates
Hayes & Stolz Flat or Curved Slide Gate discharges are for commercial (non-sanitary) applications, to be located bottom-end or bottom-center of the mixer tub. Slide gates can be furnished in single or multiple-opening arrangements and with manual rack & pinion, pneumatic or electric actuators. Optional open/closed position indicating switches are offered. Note: Curved slide gates match the mixer tub contour eliminating the “pocket” of unmixed product directly above the gate.
Hayes & Stolz Paddle Gate discharges are for commercial or sanitary applications, to be located bottom-end or bottom-center of the mixer tub. Slide gates can be furnished with manual or pneumatic actuators. Optional open/closed position indicating switches are offered.
Full-Length Drop Bottom Discharge
Hayes & Stolz Drop Bottom discharges are for commercial (non-sanitary) applications and consist of double bomb bay style doors that match the mixer tub contour, eliminating “pockets” of unmixed product. The pneumatically actuated doors extend through the endplates eliminating ledges inside the mixer, and the end plate penetrations are manufactured with a beveled edge for a positive door end seal. A formed lip seal where the closed doors meet in the middle and a beveled leading edge on one door keep the seal area free of compacted product prevent leakage.
The bolted door and hinge design has heavy continuous hinges with stainless steel hinge pins. Machined adjustable turnbuckles for door actuation provide for adjustment and over-center locking when doors are closed. Replaceable hardened bushings are installed at all pivoting wear points. Actuating arms have hubs and are keyed to the door shaft.
Optional open/closed position indicating switches and optional door dampening systems are available.
Hayes & Stolz can custom design a weir type discharge where product is discharged through an opening(s) located high on the sidewall or endplate of the mixer or over a “false wall” located inside the unit. Weir type discharges are used to convert batch operation into a continuous mixing line.
Hayes & Stolz can custom design a through-the-endplate type discharge where product is discharged through an opening located low in the endplate of the mixer. Discharges can be furnished with manual or pneumatic actuators. Optional open/closed position indicating switches are offered.
Special Application Discharges (By Other Manufacturers)