A feed wheel is provided that includes a body, a plurality of material ports formed in the body, and a plurality of outer pressure ports formed in the body. The body is operable to rotate about a central axis. The material ports are operable to receive material. The outer pressure ports are positioned radially outward in relation to the material ports. Each of the outer pressure ports is operable to receive pressurized gas when in registration with a pneumatic supply as the body rotates about the central axis. Each of the outer pressure ports are in fluid communication with a corresponding material port such that when an outer pressure port receives the pressurized gas, the pressurized gas discharges the material from the corresponding material port s out of the top surface of the body.

A feed wheel is provided that includes a body, a plurality of material ports formed in the body, and a plurality of outer pressure ports formed in the body. The body is operable to rotate about a central axis. The material ports are operable to receive material. The outer pressure ports are positioned radially outward in relation to the material ports. Each of the outer pressure ports is operable to receive pressurized gas when in registration with a pneumatic supply as the body rotates about the central axis. Each of the outer pressure ports are in fluid communication with a corresponding material port such that when an outer pressure port receives the pressurized gas, the pressurized gas discharges the material from the corresponding material port s out of the top surface of the body.

A funnel device for a counting system comprising a hollow cylindrical body portion, a tapered funnel portion, at least one inlet port and at least two outlet ports in the cylindrical body portion, and a plurality of vents in the funnel portion. The inlet port of the cylindrical body portion is adapted to receive a pressurized air supply, each outlet port operative to inject a respective high velocity air flow into a first passageway of the cylindrical body portion and to direct the respective air flow downwardly into a second passageway of the funnel portion. The directed air flows create a Venturi effect in the funnel device whereby a speed of flow of the products is increased and a rate of collision of the products is decreased as the products pass through the funnel device.

A funnel device for a counting system comprising a hollow cylindrical body portion, a tapered funnel portion, at least one inlet port and at least two outlet ports in the cylindrical body portion, and a plurality of vents in the funnel portion. The inlet port of the cylindrical body portion is adapted to receive a pressurized air supply, each outlet port operative to inject a respective high velocity air flow into a first passageway of the cylindrical body portion and to direct the respective air flow downwardly into a second passageway of the funnel portion. The directed air flows create a Venturi effect in the funnel device whereby a speed of flow of the products is increased and a rate of collision of the products is decreased as the products pass through the funnel device.

A dry-bulk tanker for the provision of binding agents for soil stabilization for a spreading device comprises a storage container (10) for binding agent. A mechanical conveying device (18) for conveying binding agents from the storage container (10) into an intermediate chamber (20) is connected to the storage container (10). A pneumatic conveying device (36) for conveying the binding agent to the spreading device is connected to the intermediate chamber (20). A pressure relief device (40, 41) is connected to the mechanical conveying device in order to avoid the entry of compressed air into the storage container (10). The invention furthermore relates to a conveying system for a dry-bulk tanker and to a work train for working soils with a self-propelled ground working machine and a dry-bulk tanker.

A dry-bulk tanker for the provision of binding agents for soil stabilization for a spreading device comprises a storage container (10) for binding agent. A mechanical conveying device (18) for conveying binding agents from the storage container (10) into an intermediate chamber (20) is connected to the storage container (10). A pneumatic conveying device (36) for conveying the binding agent to the spreading device is connected to the intermediate chamber (20). A pressure relief device (40, 41) is connected to the mechanical conveying device in order to avoid the entry of compressed air into the storage container (10). The invention furthermore relates to a conveying system for a dry-bulk tanker and to a work train for working soils with a self-propelled ground working machine and a dry-bulk tanker.

Disclosed is a valve for use in particulate material processing. The valve has a rotatable closure member having a convex sealing surface and a resilient sealing ring moveable between a first configuration in which the sealing ring forms a seal around a circumference of the convex sealing surface; and a second position in which a circumferential gap is defined between the convex sealing surface and the sealing ring. The valve body defines a fluid-directing surface extending around the fluid passage between the inlet and the sealing ring to define an annular clearance which tapers towards the sealing ring and becomes narrower than the annular gap. When there is a pressure drop across the valve and before the closure member is moved to fully open the valve, material flowing through the valve experiences a dynamic pressure rise towards the circumferential gap, decreasing flow velocity and wear.

Disclosed is a valve for use in particulate material processing. The valve has a rotatable closure member having a convex sealing surface and a resilient sealing ring moveable between a first configuration in which the sealing ring forms a seal around a circumference of the convex sealing surface; and a second position in which a circumferential gap is defined between the convex sealing surface and the sealing ring. The valve body defines a fluid-directing surface extending around the fluid passage between the inlet and the sealing ring to define an annular clearance which tapers towards the sealing ring and becomes narrower than the annular gap. When there is a pressure drop across the valve and before the closure member is moved to fully open the valve, material flowing through the valve experiences a dynamic pressure rise towards the circumferential gap, decreasing flow velocity and wear.

In one aspect, a system for removing blockages present within a delivery conduit of a seeder may include a plurality of delivery conduits, a plurality of flow blocking devices, and a plurality of blockage sensors. A controller may be configured to determine when a blockage is present within a first delivery conduit of the plurality of delivery conduits based on measurement signals received from the plurality of blockage sensors. The controller may be further configured to control the flow blocking devices to occlude the flow of air through the other delivery conduits of the plurality of delivery conduits such that an air pressure in the first delivery conduit is increased.

Disclosed is a grain conveying apparatus using air, the apparatus efficiently collecting foreign materials while moving grains upward to a position at which the grains are easily fed into a grain processing machine by using the suction force air, and preventing shock so as to prevent damage to the grains. The grain conveying apparatus using air, according to the present invention, comprises: a grain supply hopper for accommodating the grains; a conveyer pipe for guiding the grains supplied from the grain supply hopper and the air flowing in from an external air inlet such that the grains, by means of the air suction force, and the air are moved together; a grain discharge pipe connected to the end of the conveyer pipe; a separation pipe for separating the grains and the foreign materials, the separation pipe comprising a horizontal part connected to the grain discharge pipe and a downwardly curved part for dropping the grains; a rotary valve connected to the lower part of the curved part of the separation pipe so as to discharge the grains in predetermined amounts; an exhaust pipe for discharging the separated foreign materials to the outside; and an air suction means having a ring blower connected to the end of the exhaust pipe so as to suck the air, wherein the front end of the grain discharge pipe is provided to penetrate the lower side of a finishing plate for closing a coupled part of the separation pipe, an inner diameter of the grain discharge pipe and an inner diameter of the separation pipe are formed to be small in a ratio of 0.4 to 0.5:1 such that the internal pressure of the separation pipe is lowered due to a change in the pressure difference, and a cut inclined surface, to be inclined in the direction of the grain conveyer pipe, is formed at the lower part of the front end of the grain discharge pipe, so as to cover the upper part thereof in order not to be influenced by the air discharged to the exhaust pipe connected to the upper side of the separation pipe, and allows the grains to be discharged to the lower side of the horizontal part of the separation pipe having a large inner diameter.