An agricultural air cart assembly is provided with individually controlled product distribution lines which allows for balanced pressures and even dispersal of air through different distribution lines of different lengths running to different sections or row units of a seeder or drill. Rotatable fans are operatively connected to corresponding first and second distribution lines and are configured to generate optimized air flows in the first and second distribution lines which entrain and carry the product downstream toward corresponding row units at balances pressures. A controller is operable to adjust the pressures of the air flows outputted by the first and second fans by adjusting the position of corresponding fan shrouds over the intakes of the first and second fans.

A method and apparatus that reduce release of dust generated during rotary dumping of rail cars in a dumping facility. The method includes removing dust laden air from a space bounded by a backside airflow diverter, a rotational frame, a first baffle and a second baffle while the rotational frame is rotating with a rail car by drawing the dust laden air through a secondary air intake that passes through the backside airflow diverter into a backside hood. A dust control apparatus includes a diverter, overlying a backside hood having a concave curved upper surface; and at least one secondary air intake positioned to pass through the diverter being located approximately where pressure in the backside hood remains neutral or negative relative to a pressure even there is a transient increase in air pressure in a lower portion of the backside hood.

A method and apparatus that reduce release of dust generated during rotary dumping of rail cars in a dumping facility. The method includes removing dust laden air from a space bounded by a backside airflow diverter, a rotational frame, a first baffle and a second baffle while the rotational frame is rotating with a rail car by drawing the dust laden air through a secondary air intake that passes through the backside airflow diverter into a backside hood. A dust control apparatus includes a diverter, overlying a backside hood having a concave curved upper surface; and at least one secondary air intake positioned to pass through the diverter being located approximately where pressure in the backside hood remains neutral or negative relative to a pressure even there is a transient increase in air pressure in a lower portion of the backside hood.

An air seeder assembly that has a tank for containing commodity, a meter assembly coupled to the tank and configured to selectively distribute commodity there through, a first conduit coupled to the meter assembly to direct commodity provided to the first conduit from the meter assembly to a tool assembly, a diverter that selectively diverts commodity to the first conduit, and a sensor coupled to the diverter to identify when commodity is passing thereby.

An air seeder assembly that has a tank for containing commodity, a meter assembly coupled to the tank and configured to selectively distribute commodity there through, a first conduit coupled to the meter assembly to direct commodity provided to the first conduit from the meter assembly to a tool assembly, a diverter that selectively diverts commodity to the first conduit, and a sensor coupled to the diverter to identify when commodity is passing thereby.

The present disclosure relates to a pneumatic suction conveying apparatus for conveying granulated bulk materials and a corresponding method, comprising a pump unit with a vacuum pump and a suction volume, at least two suction lines, which is connected to the suction volume and extends towards storage containers for receiving bulk materials, the suction lines each comprising a conveying hopper for separating the bulk material and a stop valve for blocking the suction line. Hereby, in the suction line there is each provided a closed control loop comprising an adjustable throttle valve and a flow sensor provided in the suction line, the control loop being adapted and designed to adjust the throttle valve depending on a measurement of the flow sensor.

The present disclosure relates to a pneumatic suction conveying apparatus for conveying granulated bulk materials and a corresponding method, comprising a pump unit with a vacuum pump and a suction volume, at least two suction lines, which is connected to the suction volume and extends towards storage containers for receiving bulk materials, the suction lines each comprising a conveying hopper for separating the bulk material and a stop valve for blocking the suction line. Hereby, in the suction line there is each provided a closed control loop comprising an adjustable throttle valve and a flow sensor provided in the suction line, the control loop being adapted and designed to adjust the throttle valve depending on a measurement of the flow sensor.

Assemblies, apparatuses, and methods to extract or convey a material from a source of the material may include a vacuum generation and sound attenuation assembly and a material receiver to enhance conveyance the material from the source of the material. The vacuum generation and sound attenuation assembly may include a vacuum source positioned to cause a vacuum flow between the source of the material, the material receiver, and the vacuum generation and sound attenuation assembly. The vacuum generation and sound attenuation assembly may further include a sound attenuation chamber positioned to receive at least a portion of the vacuum flow from, and attenuate sound generated by, the vacuum source. The material receiver may be positioned an elevated location relative to a source of the material and be capable of staging and metering the conveyance of material when moving material at the top of a structure, such as a refinery tower.

Assemblies, apparatuses, and methods to extract or convey a material from a source of the material may include a vacuum generation and sound attenuation assembly and a material receiver to enhance conveyance the material from the source of the material. The vacuum generation and sound attenuation assembly may include a vacuum source positioned to cause a vacuum flow between the source of the material, the material receiver, and the vacuum generation and sound attenuation assembly. The vacuum generation and sound attenuation assembly may further include a sound attenuation chamber positioned to receive at least a portion of the vacuum flow from, and attenuate sound generated by, the vacuum source. The material receiver may be positioned an elevated location relative to a source of the material and be capable of staging and metering the conveyance of material when moving material at the top of a structure, such as a refinery tower.

Assemblies and methods to extract materials from a retention collection may include a vacuum source including a series of vacuum generators configured to generate a vacuum flow to create a suction between the retention collection and a material collector for extraction of the material from the retention collection and transfer to the material collector. The suction generated by the vacuum flow will be sufficient to draw-in and convey the material in liquid, semi-solid and substantially solid states from the retention collection along a collection conduit and into the material collector for disposal. The vacuum generation assembly may include a filter and sound attenuation chamber connected to the vacuum source configured to receive and filter a vacuum exhaust fluid/air flow portion of the vacuum flow and to attenuate sound generated by the vacuum source.