摘要:
Apparatus for making battery paste comprises a mixing chamber having a floor with a cylindrical upstanding side wall and a top cover. A mixing head is mounted for rotation in the chamber including at least one mulling wheel and at least one plow for moving the battery paste into the path of the mulling wheels. A cooling system is provided for the mixing chamber and its contents including a plenum chamber in direct contact with the underside of the mixing chamber floor for cooling the floor and a plurality of riser ducts extend upwardly from the plenum chamber in direct contact with the side wall. At the upper end of the risers deflectors are provided for directing a discharge of cooling air downwardly and inwardly of the upper end portion of the mixing chamber to cool the material. An exhaust system is provided for removing heat, moisture and fumes developed in the chamber and a liquid supply system is provided for additional material cooling and for washing the interior surfaces of the chamber. The washing liquid is retained for make-up liquid for the next batch of battery paste to be mixed.A method of making battery paste includes the introduction of metered quantities of solids and acid into a quantity of make-up washing water already present in the mixing chamber from the preceding washing operation. This water is used for cooling, washing and helps retain needed oxides for the battery paste which would otherwise be carried away and possibly cause water pollution problems.
摘要:
Mixing equipment includes a mixing compartment and at least one mulling assembly for dispersing therein material, including granular material, such as foundry sand. An agitator is provided for improving the mulling and aerating of the dispersed material within the compartment. The agitator includes a rotor rotated about an upright axis disposed within a cavity opening into the mixing compartment. The rotor includes a hub disposed within the cavity and having a plurality of fingers extending outwardly therefrom. Upon rotation of the rotor, the fingers move forcibly out of the cavity and into the mixing compartment to impact the material moving therepast, for mixing and aerating the material. An overflow discharge opening in a side wall of the compartment permits the prepared material to be discharged continuously from the mixing compartment. The supply of material to the compartment and the discharge of material are under the control of door, material consistency sensing, and timing apparatus. In order to interrupt efficiently the continuous production of prepared material, a controlled shutdown cycle of operation enables the mixing equipment either to resume production, if desired, following an interruption, or to cease production altogether.