A water source, an acid source, an electrolyte tank containing a mixture of electrolytes in exactly the quantity needed for the manufacture of the liquid acid concentrate, and a sodium chloride source are connected to a mixing tank. A quantity of water needed for the manufacture of the batch of liquid acid concentrate is introduced into the mixing tank. A quantity of acid needed for manufacture of the liquid acid concentrate is introduced into the mixing tank, the solution is stirred until a homogeneous solution is obtained. Part of the solution contained in the mixing tank is transferred into the electrolyte tank, then the solution contained in the electrolyte tank is transferred into the mixing tank. A quantity of sodium chloride needed to manufacture the liquid acid concentrate is introduced into the mixing tank. The solution is stirred and recirculated until a homogeneous liquid acid concentrate is obtained.

A water source, an acid source, an electrolyte tank containing a mixture of electrolytes in exactly the quantity needed for the manufacture of the liquid acid concentrate, and a sodium chloride source are connected to a mixing tank. A quantity of water needed for the manufacture of the batch of liquid acid concentrate is introduced into the mixing tank. A quantity of acid needed for manufacture of the liquid acid concentrate is introduced into the mixing tank, the solution is stirred until a homogeneous solution is obtained. Part of the solution contained in the mixing tank is transferred into the electrolyte tank, then the solution contained in the electrolyte tank is transferred into the mixing tank. A quantity of sodium chloride needed to manufacture the liquid acid concentrate is introduced into the mixing tank. The solution is stirred and recirculated until a homogeneous liquid acid concentrate is obtained.

Disclosed are a method for stirring milk powder solution and a stirring type feeding-bottle. The method comprising: driving a counterweight head (24) and a flexible straw (23) to revolve by a drive device (12). The stirring type feeding-bottle includes a feeding-bottle assembly (2) comprising a feeding-bottle (21), a nipple subassembly (22), a flexible straw (23) and a counterweight head (24). The counterweight head (24) is connected to a lower end of the flexible straw (23). The stirring type feeding-bottle further comprises a drive device (12) for driving the flexible straw (23) and the counterweight head (24) to revolve. A gap is formed between the counterweight head (24) and an inner bottom surface of the feeding-bottle (21). The stirring type feeding-bottle achieves automatic stirring, reduces the generation of bubbles in the stirring process, and improves the uniformity of stirring and facilitates feeding.

Provided herein are solids removal systems for dehydrator systems comprising a large rotating paddle, a small rotating paddle, and a drive shaft. The dehydrator system also includes a core dehydrator and a mixing unit. The core dehydrator comprises a plurality of small deflector plaques in fluidic communication with a plurality of large deflector plaques. The mixing unit includes a rapid mixing manifold in fluidic communication with a plurality of vertical flocculators and the core dehydrator. The large rotating paddle and the small rotating paddle of the solids removal system are connected to the drive shaft and configured to remove solids from the core dehydrator.

A dissolver capable of increasing the dissolution rate, includes a tank body, a feeding pipe, a connecting moveable rod, and a moveable disc, the feeding pipe is communicated with the tank body, and being configured to flow raw materials into the tank body. The connection movable plate is slidably mounted inside the feeding pipe, the raw materials flows into the tank body or is prevented flowing when the connection movable plate slides from an inner front side to an inner rear side of the feeding pipe. The connecting moveable rod, provided with an end inserted into the feeding pipe to connect to the connection moveable plate, and the other end exposed outside the feeding pipe. The moveable disc is connected to the other end of the connecting moveable rod, and driven to rotate and enable the connection movable plate slide inside of the feeding pipe.

A dissolver capable of increasing the dissolution rate, includes a tank body, a feeding pipe, a connecting moveable rod, and a moveable disc, the feeding pipe is communicated with the tank body, and being configured to flow raw materials into the tank body. The connection movable plate is slidably mounted inside the feeding pipe, the raw materials flows into the tank body or is prevented flowing when the connection movable plate slides from an inner front side to an inner rear side of the feeding pipe. The connecting moveable rod, provided with an end inserted into the feeding pipe to connect to the connection moveable plate, and the other end exposed outside the feeding pipe. The moveable disc is connected to the other end of the connecting moveable rod, and driven to rotate and enable the connection movable plate slide inside of the feeding pipe.

Disclosed is a dissolution mixer, which includes: a dissolution bath configured to accommodate a powder and a solvent for dissolving the powder; a powder input unit located at an outer side of the dissolution bath; an impeller installed to be rotatable inside the dissolution bath; and an anchor located inside the dissolution bath and having a passage of the powder inputted by the powder input unit and a powder spouting hole connected to the passage.

Improved methods and apparatus (10, 74) for the solubilization of initially solid humic acids include a large-volume mixing/agitation tank (12, 76) for water and solid humic acids, together a recirculation assembly (14, 78) for continuously recirculating the water/humic acids mixture while reducing the size of the humic acids. Properly used, the apparatus (10, 74) is capable of providing relatively stable, solubilized humic acid solutions or dispersions.

The disclosure provides methods of in vitro dissolution of a solute, comprising agitating a solution placed in a vessel using a mobile paddle: wherein the solution comprises a solute, a media, and a plurality of beads; and wherein the paddle is submerged in the solution. In some aspects, the plurality of beads is positioned between the solute and the mobile paddle. In some aspects, the solute is sandwiched by the plurality of beads, wherein the solute is positioned both on top of and below the plurality of beads.

The disclosure provides methods of in vitro dissolution of a solute, comprising agitating a solution placed in a vessel using a mobile paddle: wherein the solution comprises a solute, a media, and a plurality of beads; and wherein the paddle is submerged in the solution. In some aspects, the plurality of beads is positioned between the solute and the mobile paddle. In some aspects, the solute is sandwiched by the plurality of beads, wherein the solute is positioned both on top of and below the plurality of beads.