Provided is a pressurizing system which includes: a pressurizing nozzle configured to supply a pressurizing gas into a hopper (3) where pulverized coal is accumulated; a filter configured to face a space in the hopper (3) where the pulverized coal is accumulated, and to allow the pressurizing gas to pass through the filter, the filter being provided at an end of the pressurizing nozzle; buffer tanks (5a), (5b) in which a pressurizing gas to be supplied to the hopper (3) is collected at a first predetermined pressure; and a pressure control means configured to start, at a time of starting pressurization of the hopper (3), supply of a pressurizing gas at a second predetermined pressure which is lower than the first predetermined pressure of the pressurizing gas collected in the buffer tanks (5a), (5b).

Provided is a pressurizing system which includes: a pressurizing nozzle configured to supply a pressurizing gas into a hopper (3) where pulverized coal is accumulated; a filter configured to face a space in the hopper (3) where the pulverized coal is accumulated, and to allow the pressurizing gas to pass through the filter, the filter being provided at an end of the pressurizing nozzle; buffer tanks (5a), (5b) in which a pressurizing gas to be supplied to the hopper (3) is collected at a first predetermined pressure; and a pressure control means configured to start, at a time of starting pressurization of the hopper (3), supply of a pressurizing gas at a second predetermined pressure which is lower than the first predetermined pressure of the pressurizing gas collected in the buffer tanks (5a), (5b).

An agricultural vehicle includes: a chassis; a tank carried by the chassis; at least one meter module coupled to the tank, the at least one meter module having at least one gate; a gate control link coupled with the at least one gate of the at least one meter module; a control rod carried by the chassis; and a connector coupling the control rod to the gate control link at a connection interface such that movement of the control rod controls an open state of the at least one gate of the at least one meter module, the connector having a frangible portion adjacent the connection interface, the control rod and the gate control link uncoupling from one another upon a breaking force causing the frangible portion to break.

An agricultural vehicle includes: a chassis; a tank carried by the chassis; at least one meter module coupled to the tank, the at least one meter module having at least one gate; a gate control link coupled with the at least one gate of the at least one meter module; a control rod carried by the chassis; and a connector coupling the control rod to the gate control link at a connection interface such that movement of the control rod controls an open state of the at least one gate of the at least one meter module, the connector having a frangible portion adjacent the connection interface, the control rod and the gate control link uncoupling from one another upon a breaking force causing the frangible portion to break.

A gravimetric blender includes a vertical conduit, a vacuum pump having a suction inlet communicating with the interior of the conduit, a plurality of receivers connected to the conduit and vertically supported thereby with each receiver having a single tube therewithin extending from the resin material/vacuum drawn stream inlet to the connection of the receiver with the conduit.

There as herein defined a pneumatic conveying system comprising a cyclonic feed apparatus. In particular, there is described a pneumatic conveying system comprising a vessel (e.g. a cyclonic separator) in combination with a sifting device (e.g. a centrifugal device) which is capable of separating pneumatically conveyed material into oversize powder discharge (e.g. waste material) and fine powder discharge (e.g. valuable product material).

Assemblies, apparatuses, systems, and method to extract or convey a material from a source of the material may include a vacuum generation and sound attenuation assembly to enhance conveyance the material from the source of the material. The vacuum generation and sound attenuation assembly may include a vacuum source including a plurality of vacuum generators. Each of the plurality of vacuum generators may be positioned to cause a vacuum flow between the source of the material and the vacuum generation and sound attenuation assembly. The vacuum generation and sound attenuation assembly may further include a sound attenuation chamber connected to the vacuum source. The sound attenuation chamber may include an attenuation housing at least partially defining a chamber interior volume being positioned to receive at least a portion of the vacuum flow from the vacuum source and attenuate sound generated by the vacuum source.

Disclosed is a blowing device for a rotary air lock, comprising a flushing gas stream that is fed by a gas supply line (12) in order for adhering material to be flushed and blown out of at least one compartment (20-24) of the rotary air lock (20-24) when said compartment is located next to a product outlet of the rotary air lock. A blowing unit (30), which comprises at least one blowing tube (32) and is located in a feeding shoe (10) that is arranged at the product outlet, directs the flushing gas stream to at least one compartment (20-24) of the rotary air lock.

A distributor device of fertilizer substances for a seeder machine comprises storing means (20) of a fertilizer substance, a plurality of distribution conduits (60) connected to the storing means (20), at least a source of high-velocity air (30) connected to the distribution conduits (60) for distributing, in use, the fertilizer substance. The device further comprises: at least a connecting element (70), comprising at least two infeeds (72) and at least one outfeed (76), the connecting element (70) being connected to at least two of the distribution conduits (60) so as to convey, in use, the fertilizer substance coming from at least the two distribution conduits (60) to the at least an outfeed (76).

Method for pneumatically conveying granular material from a supply thereof through a conduit to a plurality of receivers for temporary storage of the material prior to molding or extrusion thereof by drawing vacuum in the conduit using a vacuum pump and controlling the vacuum pump in response to sensed vacuum level in the conduit.