A homogenization apparatus for pepper raw materials, including a base, and an annular storage tank and a stirring barrel fixed to the base. The stirring barrel is positioned under the storage tank, the bottom center of the stirring barrel is fixedly connected to a stationary shaft, the stirring barrel is rotationally drivable to rotate together with the stationary shaft about the axis of the stationary shaft, the stationary shaft extends upward into the storage tank, a sleeve is provided on an outer side of the stationary shaft, the sleeve is rotatably connected to the stationary shaft, so that the stirring barrel rotates relative to the storage tank; a portion of the sleeve accommodated in the stirring barrel is fixedly connected with a stirring part, an upper end of the stationary shaft is fixedly connected with a connecting plate.

The invention provides methods and compositions for carbonation of cement mixes using pressurized carbon dioxide delivered to the mix.

The present invention provides an adjustable pulsed gas agitator including a gas accumulation chamber with a gas discharge pipe, a gas supply unit, and an adjustable gas discharge unit. The adjustable gas discharge unit has an elongatable gas pipe slidably disposed over the lower part of the gas discharge pipe, and a gas cap disposed underneath the elongatable gas pipe; so that when the adjustable gas discharge unit is moved upward or downward, the volume of the stirring gas accumulated within the gas accumulation chamber is decreased or increased; thereby the frequency and strength of the discharged pulsed gas flows is varied.

A method comprises steps for (a) providing a liquid in a container; (b) flowing a gas to a volume within the liquid, wherein the volume is at least partially submerged in the liquid; and (c) repeatedly increasing and decreasing the volume, wherein the cycles of increasing and decreasing generates a pulsed aerated flow, wherein at least one of the pulsed aerated flow is released within the container and the pulsed aerated flow is released outside the container.