Uus teravilja puhasti Agrivel Grain Cleaner BSH-12

The range includes many models and modifications with an aspiration chamber, cyclone, etc.

The BSH-12 grain cleaning separator is designed for cleaning grain (wheat, rye, oats, etc.) from impurities that differ from it in geometric dimensions and aerodynamic properties. Separators are installed as part of technological schemes in mills, elevators and cereal processing plants.

Productivity, pre-cleaning, t/hour - 12
Productivity, final cleaning, t/h - 3
Installed power, kW, no more than – 0.75
Overall dimensions of the separator without cyclone, mm, no more:
- length, mm – 1530
- width, mm – 1195
- height, mm – 1440

Design and operation:
Grain cleaning separators consist of the following components: a frame, a body with screen frames, a traverse with a balancing mechanism, a sedimentary chamber, a fan, a fan drive, a pneumatic channel, augers, a feeder, outlet trays, and a fence. The body is suspended from the frame using flexible hangers.
Sieve frames with sieves are inserted into the body along guides attached to the sides of the body and are fixed motionless using clamps. The sieve frames are divided by longitudinal and transverse partitions into cells in which rubber balls are placed, designed to clean the sieves from stuck particles. An electric motor with a drive pulley is installed on the front wall of the sieve body, which, through a V-belt drive, rotates the traverse pulley with an unbalanced load attached to it. A sedimentation chamber with a built-in fan and two augers is installed on top of the frame. The chamber has two channels: 1st channel - primary purge and 2nd channel - secondary purge.
A feeder with a valve that maintains a constant level of grain entering the separator and a built-in magnetic block to capture metal impurities from the product is attached to the front wall of the sedimentary chamber. The pneumatic separation channel is attached to the frame and the sediment chamber and serves to separate light impurities from the grain that differ in aerodynamic properties. The air flow is adjusted using the top valve using a handle. To ensure uniform supply of product to the pneumatic channel, a bottom valve is provided.
The operating principle of the separator is as follows. The product to be cleaned enters the first channel of the sedimentary chamber through the feeder (primary blowing). Thanks to the constant support of grain in the feeder, air ingress beyond the first channel is excluded, which increases the efficiency of cleaning grain from light impurities. Light impurities settled in the sediment chamber of the primary blowing are removed from the machine by a screw. From the primary blowing channel, the grain is directed to the body section. The separator body makes circular movements, under the influence of which the product moves through the sieve and is sorted. Large impurities are removed from the separator through a tray, and a mixture of grain with small impurities, after passing through a sorting sieve, enters the lower frame of the sieves. Small impurities, spilling through the sowing sieve, fall to the bottom of the separator, and then are removed from the machine through a tray.
The grain, cleared of large and small impurities on sieves, enters the pneumatic separating channel. Light impurities are carried away from the grain by an intense air flow - secondary blowing, and settle in the second channel of the sedimentary chamber, after which they are transported from the separator by a second screw. Completely cleaned grain is removed from the machine through the lower collector. Air modes in the first and second channels are regulated by valves installed in the sediment chamber.
The separator can operate in two modes: elevator (preliminary purification of the product) and mill (final purification) depending on the types of sieves used. To clean grain in the separator, sieves with round, oblong or triangular holes can be used, corresponding to the shape and size of the grain of the main crop and the impurities clogging it.

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