Abstract: The present disclosure relates to a method of thermal treatment of air-dispersible raw material, especially cement raw meal and/or mineral products, wherein the raw material is introduced into a conduit through which hot gases flow and is subjected to thermal treatment by the hot gases and/or the radiant heat in the conduit, fuel is at least partly converted in a treatment region, and the heat generated in the treatment region is supplied at least partly to the conduit, and an oxygen-rich gas is introduced into the treatment region, wherein the oxygen content in the hot gas and/or the gas temperature is ascertained and the amount of oxygen introduced into the treatment region is adjusted by open-loop or closed-loop control depending on the temperature ascertained and/or the oxygen content.

Abstract: An installation for thermal treatment of free-floating raw material, in particular cement raw meal and/or mineral products, may include a riser line through which hot gases can flow. The riser line has at least one fuel inlet for introducing fuel into the riser line. The riser line has at least one raw meal inlet for introducing raw meal into the riser line, which raw meal inlet is arranged upstream of the fuel inlet in a flow direction of gas inside the riser line. Further, a method for thermal treatment of free-floating raw material may involve introducing fuel via a fuel inlet into a riser line for guiding hot gases and introducing raw meal into the riser line. The raw meal is introduced into the riser line upstream of the fuel inlet in the flow direction.

Abstract: A cement production plant may include a preheater for preheating raw meal, a calciner for calcining the preheated raw meal, and a furnace with a furnace burner for firing the raw meal to form cement clinker. The furnace has a combustion gas inlet for admitting a combustion gas with an oxygen content of 30% to 75% into the furnace. The cement production plant may also include a cooler for cooling the cement clinker. The calciner and the furnace each have at least one respective fuel inlet for admitting at least one fuel into the calciner and the furnace. The calciner and the furnace each have at least one respective inert gas inlet for respectively admitting inert gas into the calciner and the furnace.

Abstract: A cooler for cooling bulk material, in particular cement clinker, may include a cooling gas chamber through which a cooling gas flow for cooling the bulk material can flow in crosscurrent, and a conveying device for conveying the bulk material through the cooling gas chamber in a conveying direction. The cooling gas chamber may include a first cooling gas chamber portion with a first cooling gas flow and a second cooling gas chamber portion, adjoining the first cooling gas chamber portion in the conveying direction of the bulk material, with a second cooling gas stream. The cooler may include a separating apparatus for gastight separation of the cooling gas chamber portions from one another. The separating apparatus may have sealing element and at least one suspension element, to which a plurality of sealing elements are attached.

Abstract: The invention relates to a plant and to a method for the production of cement clinker from cement raw meal, the cement raw meal being preheated in a preheating zone, precalcined in a calcining zone, completely burned in a sintering combustion zone and cooled in a cooling zone, solid fuels additionally being burned in an additional combustion region, a firing region being used in the additional combustion region, the solid fuel being introduced into the firing region where it forms a fuel bed over which a supplied oxygen-containing gas flows, the resulting combustion products being removed via a discharge opening and being used in the production of cement clinker. The fuel is supplied via a conveyor device arranged outside the firing region, in such a manner that it moves the fuel bed that is present in the direction towards the discharge opening.

Abstract: The invention relates to a multi-level furnace for thermal treatment of the material flow which has at least two process chambers arranged one above another, each providing at least two level floors, and is equipped with one or more transfer devices for transferring the treated material flow from an upper process chamber to a lower process chamber. In order to separate the two process chambers in terms of gas flow, the transfer device has means for forming a material column in the transition region between the upper and the lower process spaces, wherein said means for forming a material column comprise at least one conveying unit or at least one chute, and the at least one conveying unit or at least one chute also forms a material removal device for the upper process chamber and/or a material input device for the lower process chamber.

Abstract: This invention relates to a device for dispensing spray drops or foam. A first illustrative example of the invention is an electrically powered dispenser comprising: a pressurization system for automatically regulating a pressure level of a gas in a pressurizable space, the pressurization system being configured: to take a pressure reading of the gas, to make a determination if the pressure reading indicates a deviation from a desired pressure level, and based on the determination to make a decision selected from a list comprising at least the following: to start pressurization, to continue pressurization, to stop pressurization, or to do nothing. According to variations or refinements of this first example the pressurization system is sufficiently sensitive to indicate the deviation even if the deviation is minimal. According to other variations or refinements of this first example, the desired pressure level can be, e.g., less than 10 psi.

Abstract: This invention relates to a device for dispensing foam onto plants and other objects. According to one example, the dispenser for dispensing foam comprises: a supply line in which a foamable solution flows under pressure and which comprises a gas inlet, a wand, a mixing chamber, and a nozzle, wherein the gas inlet introduces a gas into the foamable solution, the mixing chamber helps process the foamable solution into a foam, and the nozzle ejects the foam. In a variation, the mixing chamber can be located distally on the wand. In another example, the dispenser for dispensing foam comprises: a wand fluidly connected to a nozzle for ejecting a foam and a wiper attached to the wand, the wiper being for temporarily retaining ejected foam and making the foam available for wiping the foam onto a target surface.

Abstract: In the method according to the invention for increasing the calorific value of a material flow containing carbon, preferably a material flow of renewable raw materials, the material flow is brought in direct contact with at least one low-oxygen, inert hot gas flow in a reactor, wherein the hot gas flow is formed at least 50%, preferably at least 80%, by exhaust gas of a process for thermally processing cement raw meal and/or lime and/or an ore, wherein at least part of a preheater exhaust gas for preheating the cement raw meal and/or lime and/or ore is used as the hot gas flow.

Abstract: The invention relates to a multi-level furnace for thermal treatment of the material flow which has at least two process chambers arranged one above another, each providing at least two level floors, and is equipped with one or more transfer devices for transferring the treated material flow from an upper process chamber to a lower process chamber. In order to separate the two process chambers in terms of gas flow, the transfer device has means for forming a material column in the transition region between the upper and the lower process spaces, wherein said means for forming a material column comprise at least one conveying unit or at least one chute, and the at least one conveying unit or at least one chute also forms a material removal device for the upper process chamber and/or a material input device for the lower process chamber.

Abstract: A device for drying and torrefaction of at least one carbon-containing material flow in a multiple-hearth furnace includes a drying zone, a torrefaction zone, a heat exchanger for heating the drying gas flow, the discharge point of the drying zone being connected via the heat exchanger to the infeed point of the drying zone; and a combustion assembly, wherein the discharge point of the torrefaction zone is connected via the combustion assembly and the heat exchanger to the infeed point of the torrefaction zone, wherein a torrefaction gas flow discharged via the discharge point of the torrefaction zone is combusted in the combustion assembly and the resulting exhaust gas is used in the heat exchanger to heat the drying gas flow and is fed to the torrefaction zone, wherein the drying zone and the torrefaction zone comprise two separate gas circulations.

Abstract: In one embodiment, a foamable solution dispenser, comprising: a foamable solution container and a mechanical foaming head, the foaming head comprising a mixing chamber configured with an air chamber, a liquid chamber and a manifold for receiving and mixing air and the foamable solution into a foam, wherein the foamable solution is disposed in the container and wherein the foamable solution comprises an active ingredient, water and a foaming agent. In a further embodiment, a foamable solution, comprising an active ingredient for application to plants, water and a foaming agent. In a still further embodiment, a foamable herbicide solution, comprising an herbicide, water and a foaming agent, wherein the foaming agent is aerobically readily biodegradable.

Abstract: The device according to the invention for drying and torrefaction of at least one carbon-containing material flow in a multiple-hearth furnace substantially comprises a drying zone, which comprises a feed device for feeding a carbon-containing material flow, a discharge point for discharging a drying gas flow containing water vapour and an infeed point for recycling at least a part of the drying gas flow, a torrefaction zone for degassing the material flow dried in the drying zone, which comprises a discharge point for discharging a torrefied material flow, at least one infeed point for an exhaust gas and a discharge point for a torrefaction gas flow, a heat exchanger for heating the drying gas flow, the discharge point of the drying zone being connected via the heat exchanger to the infeed point of the drying zone, a combustion assembly, wherein the discharge point of the torrefaction zone is connected via the combustion assembly and the heat exchanger to the infeed point of the torrefaction zone, wherei

Abstract: In one embodiment, a method for testing a helmet comprising the steps of: placing a strike helmet on a first headform; placing a target helmet on a second headform, colliding the strike helmet against the target helmet; and measuring the acceleration of the second headform caused by the collision. In a second embodiment, an apparatus for testing a helmet comprising: a strike helmet placed on a first headform; a target helmet placed on a second headform; a motion device for moving the strike helmet to collide with the target helmet.

Abstract: The invention relates to a plant and to a method for the production of cement clinker from cement raw meal, the cement raw meal being preheated in a preheating zone, precalcined in a calcining zone, completely burned in a sintering combustion zone and cooled in a cooling zone, solid fuels additionally being burned in an additional combustion region, a firing region being used in the additional combustion region, the solid fuel being introduced into the firing region where it forms a fuel bed over which a supplied oxygen-containing gas flows, the resulting combustion products being removed via a discharge opening and being used in the production of cement clinker. The fuel is supplied via a conveyor device arranged outside the firing region, in such a manner that it moves the fuel bed that is present in the direction towards the discharge opening.

Abstract: In one embodiment, a method for testing a helmet comprising the steps of: placing a strike helmet on a first headform; placing a target helmet on a second headform, colliding the strike helmet against the target helmet; and measuring the acceleration of the second headform caused by the collision. In a second embodiment, an apparatus for testing a helmet comprising: a strike helmet placed on a first headform; a target helmet placed on a second headform; a motion device for moving the strike helmet to collide with the target helmet. In a third embodiment, a helmet comprising: a shell having a zone of a greater rigidity; having a zone of a lesser rigidity; wherein the zone of lesser rigidity covers a portion of the frontal bone of a wearer.