A process for pressurizing bulk material in a hopper; wherein the hopper is configured as a lock hopper (29) containing a bulk material, a source of pressurized gas, lines (22, 26, 28) to convey the pressurized gas from the source to one or more inlets (30) of the lock hopper, a valve arranged in the lines, wherein the opening position of said valve (34, 35) is controlled to provide pressurizing gas to the lock hopper at a preset constant gas volume flow rate.

An agricultural product distribution system that includes an inductor box configured to receive agricultural product and conveyed air to combine the agricultural product and the conveyed air. The agricultural product distribution system also includes a removable baffle configured to control an amount of the conveyed air that flows into each port of the plurality of ports. Furthermore, the inductor box is configured to enable the removable baffle to be slidingly inserted into the inductor box, and the removable baffle comprises a tang configured to at least partially block insertion of the removable baffle into the inductor box while the removable baffle is oriented at an undesirable orientation.

An agricultural product distribution system that includes an inductor box configured to receive agricultural product and conveyed air to combine the agricultural product and the conveyed air. The agricultural product distribution system also includes a removable baffle configured to control an amount of the conveyed air that flows into each port of the plurality of ports. Furthermore, the inductor box is configured to enable the removable baffle to be slidingly inserted into the inductor box, and the removable baffle comprises a tang configured to at least partially block insertion of the removable baffle into the inductor box while the removable baffle is oriented at an undesirable orientation.

A continuous concentrate feeding equipment of the present invention, which can supply the concentrate to a smelting furnace continuously when the concentrate is received, includes a pressure-adjusting tank that temporarily accumulates granular concentrate; a lift tank that receives the concentrate from the pressure-adjusting tank and discharges the concentrate to a smelting furnace; an air passage for introducing compressed air into the pressure-adjusting tank and the lift tank, respectively; and control means for controlling the compressed air, and the concentrate is continuously supplied from the lift tank to the smelting furnace even when the lift tank receives the concentrate from the pressure-adjusting tank by the control means.

A simple and lightweight solution to the storage and delivery of dry flowable materials that is cost-effective, can be standardized to facilitate transportation and isolates the materials from exposure to air, insects and other contaminants. An apparatus includes a vessel and a delivery assembly, having a rotary feeder that upon gravity discharge of the dry flowable material moves such material to a desired location.

In order to be able to operate a dust separator with or without a lower closure element (44), the closure element (44) is part of a separate closure unit (40) which is mounted under the dust separator if required. For this purpose, the dust separator, the closure unit (40) and optionally further components, such as a delivery flow generator, are kept available in a kit so as to be able to assemble the treatment unit as required. The dust separator can be operated in batches by means of the closure element (44).

In order to be able to operate a dust separator with or without a lower closure element (44), the closure element (44) is part of a separate closure unit (40) which is mounted under the dust separator if required. For this purpose, the dust separator, the closure unit (40) and optionally further components, such as a delivery flow generator, are kept available in a kit so as to be able to assemble the treatment unit as required. The dust separator can be operated in batches by means of the closure element (44).

Method for handling waste material in a pneumatic pipe transport system, wherein waste material is fed in from an input point into conveying piping, and conveyed in the conveying piping, mainly by the aid of suction/a pressure difference and/or a flow of transporting air, onwards to a separating device (1), in which the waste material to be transported and the transporting air separate from each other, from which separating device the waste material is transferred onwards to a separate waste container (26). Waste material is transferred, or is transferred and compressed to become denser, from the separating device (1) into a separate waste container (26) in a connecting channel (9) arranged between them with a transfer member (10) from the input aperture (8) of the connecting channel towards the output aperture (9′) and onwards into a separate waste container (26), and in which method the connection from the separating device (1) to the connecting channel (9) is closed at least during the detachment of the waste container (26). The invention also relates to an apparatus.

There is herein described an adjustable multi-hole orifice plate in a pneumatic conveying apparatus. More particularly, there is described an adjustable multi-hole orifice plate which can be used in a pneumatic conveying apparatus to assist in the discharge of material.

A flow control assembly for an agricultural metering system includes a first gate control shaft configured to drive a first gate of a seed meter to transition between an open position and a closed position. The flow control assembly also includes a handle configured to drive the first gate control shaft to rotate via rotation of the handle between a first position that corresponds to the open position of the first gate and a second position that corresponds to the closed position of the first gate. In addition, the flow control assembly includes a locking assembly configured to secure the handle to the first gate control shaft at least while the handle is in the first position, and to enable the handle to be released from the first gate control shaft at least while the handle is in the second position.