FECAL PUMP VTN-1
The submersible centrifugal pump VTN-1 is designed for pumping manure on livestock farms and farms from manure-acceptors to vehicles, storage and processing (composting, separation into liquid and solid ractions). It can pump dung mass of low humidity and in the presence of fibrous and coarse-grained inclusions (straw, scraps, corn stalks, etc.)
The design of the pump makes it possible to use it practically at all production sites of a large complex and a small farm both at a standard equipment, with a range of pumping up to a kilometer, and on a mobile unit equipped with a 0.5 ton lifting device.
Unlike the serial pumps, NZHN-200, HB-150, etc., has a smaller mass, greater reliability and durability, it ensures pumping of stratified manure. Mixes the mass in the fence area within a radius of up to 5 m.
The pump is a unit made of steel, consisting of a suspension, an electric motor, a housing, a cochlea, an impeller, a shaft and an outlet pipe with a branch pipe.
Inside the body is a shaft, the lower part of which rotates in two ball bearings, one of which is radial-thrust. The upper part of the shaft is connected to the motor shaft via a sleeve coupling.
At the lower end of the shaft, the pump's working member, the impeller, is fixed, which, while in the cochlea and rotating with the shaft, creates the necessary head. An additional impeller mounted on the shaft inside the pump casing ensures forced circulation of the oil in the bearing operation area.
At the entrance of the cochlea, a flat ring is installed, performing the functions of a stationary knife. Long-legged parts of plants, fibers and other inclusions during pump operation, winding on the protruding parts of the impeller blades, rise on the conical part of it before contact with
the fixed ring knife and are cut with rotating impeller blades.
To the outlet part of the cochlea is attached a pipe with a branch pipe designed for a pressure hose with an internal diameter of 100 mm.
When using the pump VTN-1 does not require the purchase of a mixer for mixing manure. On the example of Mazolovo gas SCHP of the branch of UE Vitebskoblgaz saving only on water, on pumping manure amounted to 19.1 thousand rubles.
This system does not require an additional reservoir for storing manure. That entails economy of means for maintenance, distillation of dung masses and liberates land for other economic needs.