Aspects and embodiments of systems for fluid transportation using inductive heating are described. In one embodiment, the system includes a first transportation pipe having a first diameter and a second transportation pipe having a second diameter. The first diameter is greater than the second diameter. An augur that causes a fluid flow is within the first transportation pipe. A control circuit is electrically coupled to the first inductive element and the second inductive element, and to a power supply to inductively heat the first transportation pipe and the second transportation pipe.

A conveying system for pneumatically conveying plastic granulate comprises a feed location, at which the plastic granulate is fed into a conveying line by pressurized conveying gas, a target location, in conveying connection with the feed location, for moisture contained in the conveying gas, and a condensation tempering unit, which is arranged along a section or sections of the conveying line, for making the conveying line such temperature to at least partial condensation of moisture contained in the conveying gas to form a sliding film on an internal wall of the conveying line.

Disclosed is a system and method for conveying particulate material. A plurality of injector arrangements are arranged along the conveying pipeline, for injecting a continuous flow of conveying gas into the pipeline. Each injector arrangement is operable to increase the flow rate at which conveying gas is injected into the pipeline on of pressure conditions in the conveying pipeline indicative of locally decreased material permeability. Each injector arrangement comprises a piloted shut-off valve positioned between the flow rate adjustment arrangement and the conveying pipeline and operable to close in response to a received pilot signal indicative of a pressure condition in the conveying pipeline below a lower threshold pressure condition. The continuous flow of conveying gas injected by each of the injector arrangements prevents particulate material from entering any part of the injector arrangements, thereby reducing the risk of blockage of nozzles, injection pathway selection valves and the like. The continuous injection of conveying gas along the pipeline also maintains a degree of permeability particulate material in the pipeline and promotes stable conveying. The piloted shut-off valve of each injector arrangement is operable to independently detect a large pressure drop in the pipeline, and to close in order to store pressurised conveying gas in the injector arrangement and supply thereto.

To provide a method for quantitatively and stably feeding fine powder and a system for carrying out the method. The present invention is characterized in that a gas transfer type fine powder quantitative feeding method for quantitatively transferring and feeding fine powder filled in a gas transfer type fine powder quantitative feeder to a fine powder using device by a carrier gas, wherein

when a mixed fluid of the fine powder and the carrier gas is transferred from the gas transfer type fine powder quantitative feeder to the fine powder using device, a water content in the carrier gas is adjusted to suppress an amount of static electricity that is generated in the mixed fluid.

To provide a method for quantitatively and stably feeding fine powder and a system for carrying out the method. The present invention is characterized in that a gas transfer type fine powder quantitative feeding method for quantitatively transferring and feeding fine powder filled in a gas transfer type fine powder quantitative feeder to a fine powder using device by a carrier gas, wherein when a mixed fluid of the fine powder and the carrier gas is transferred from the gas transfer type fine powder quantitative feeder to the fine powder using device, a water content in the carrier gas is adjusted to suppress an amount of static electricity that is generated in the mixed fluid.

Disclosed is a system and method for conveying particulate material. A plurality of injector arrangements are arranged along the conveying pipeline, for injecting a continuous flow of conveying gas into the pipeline. Each injector arrangement is operable to increase the flow rate at which conveying gas is injected into the pipeline on of pressure conditions in the conveying pipeline indicative of locally decreased material permeability. Each injector arrangement comprises a piloted shut-off valve positioned between the flow rate adjustment arrangement and the conveying pipeline and operable to close in response to a received pilot signal indicative of a pressure condition in the conveying pipeline below a lower threshold pressure condition. The continuous flow of conveying gas injected by each of the injector arrangements prevents particulate material from entering any part of the injector arrangements, thereby reducing the risk of blockage of nozzles, injection pathway selection valves and the like. The continuous injection of conveying gas along the pipeline also maintains a degree of permeability particulate material in the pipeline and promotes stable conveying. The piloted shut-off valve of each injector arrangement is operable to independently detect a large pressure drop in the pipeline, and to close in order to store pressurised conveying gas in the injector arrangement and supply thereto.

In one example, a pneumatic transport system to transport build material in an additive manufacturing machine includes a conduit, a source of air pressure to pull or push a stream of air through the conduit, a source of build material to introduce a build material into the stream of air, a separator to remove build material from the stream of air, a flow meter downstream from the separator to measure the stream of air flowing through the conduit, and a controller operatively connected to the flow meter and to the source of air pressure and/or the sources of build material to, based on a measurement from the flow meter, adjust a rate of flow of the stream of air in the conduit.

A conveying system for pneumatically conveying plastic granulate comprises a feed location, at which the plastic granulate is fed into a conveying line by pressurized conveying gas, a target location, in conveying connection with the feed location, for moisture contained in the conveying gas, and a condensation tempering unit, which is arranged along a section or sections of the conveying line, for making the conveying line such temperature to at least partial condensation of moisture contained in the conveying gas to form a sliding film on an internal wall of the conveying line.

Provided is a powder conveying system configured to prevent moisture adsorption to powder during powder conveyance. The powder conveying system comprises: a conveying path, a conveying device wherein the conveying device is a part of the conveying path or is connected with the conveying path; a measuring device wherein the measuring device is a part of the conveying path or is connected with the conveying path; a controlling device wherein the controlling device is a part of the conveying path or is connected with the conveying path; and a judging device wherein the judging device is connected with the measuring device and the controlling device.

A conveyor installation for plastics granulate comprises a dispatch location at which the plastics granulate with a pressurised carrier gas is dispatched into a conveyor line, a target location that in terms of conveyance is connected to the dispatch location, a humidification unit for humidifying the carrier gas and/or the plastics granulate by adding liquid, wherein a separation device for separating the humid carrier gas from the plastics granulate is provided at the target location.