The present invention relates to a distribution system and an item of equipment for treatment of solid material that comprises same, wherein said distribution system comprises a means for transmitting movement that is configured to generate a rotating movement; a distribution element comprising a surface parallel to the feeding means on which at least one rod is arranged, perpendicularly, configured to come into contact with the solid material to be treated; a rotating means which connects the means for transmitting movement to the distribution element, configured to generate a rocking or circular movement; and a means for supporting the distribution element; wherein a first end of the distribution element comprises a means for joining to the rotating means, situated on an axis eccentric to the axis of rotation of said rotating means, and a second end, opposite to the first end, is accommodated on the supporting means.

An injection element for injecting a fluid into a tank, especially for injecting water into the tank, especially into a fish tank, wherein the injection element comprises an outer pipe and an inner pipe arranged at least partially inside the outer pipe, wherein the inner pipe is extractable at least partially out of an outlet end of the outer pipe, wherein an inlet end of the outer pipe is configured to be connected with a fluid providing device, wherein the outer pipe is configured to be arranged mainly outside of an interior volume of the tank and an outlet end of the outer pipe is configured to be connected with an opening in a wall of the tank.

Disclosed are configurations, processes, and systems for utilizing a rotary feeder that has vanes with nonlinear edges, vanes with linear edges and with agglomerate pockets formed in the vanes, or vanes with nonlinear edges and with agglomerate pockets formed in the vanes.

An apparatus and a method for manufacturing an isobutyric acid. The apparatus includes a reaction tank, air inlet and outlet tubes, and a stirrer in the reaction tank. The air inlet and outlet tubes are connected to the reaction tank, so as to respectively introduce a working gas into the reaction tank and guide a reacted gas out of the reaction tank. The stirrer includes a hollow shaft and blades. An air suction hole is formed on a first end of the hollow shaft and exposed from a liquid surface of the reaction tank. An air discharge hole is formed on a second end of the hollow shaft and immersed into the liquid surface. A condenser and an end of the air outlet tube opposite to the reaction tank are connected for condensation of the reacted gas, so as to obtain isobutyraldehyde and an exhaust gas.