Abstract:
An integrated system produces ethanol and biogas from raw plant materials. The system includes a pretreatment apparatus for converting raw plant materials into sugars and a fermenter for fermenting the sugars to produce a beer including ethanol. A distillation apparatus separates the beer into the ethanol and a whole stillage, and a separator then separates the wrhole stillage into a thin stillage and wet distillers grains. A biogas apparatus processes a first portion of the thin stillage to produce biogas and a biogas effluent, and converts a percentage of the non-fermentable solids and organic acids in the thin stillage into biogas. The pretreatment apparatus is supplied with an amount of fresh water and an amount of backset, the backset including the biogas effluent recycled from the biogas apparatus to the pretreatment apparatus.
Abstract:
In order to achieve a simplified construction of the cleaning fluid feed in a hard surface cleaning device, especially a window wiper, with a suction head (1) on which is secured a flexible squeegee (3), beside which there is at least one suction aperture (2), with an outlet aperture on the suction head (1) for a cleaning fluid with an inlet for said cleaning fluid and an actuating component (13, 14, 15) to supply said fluid through the outlet aperture (10), it is proposed that a supply container (18) be fitted on the suction head (1) to hold a supply of cleaning fluid.
Abstract:
In order on the one hand to be able to use a high-pressure cleaning device with a high-pressure pump, a liquid supply and a pressure line for the liquid supplied by the pump and a housing surrounding the pump in the usual way as a portable device and on the other to facilitate transport without increasing overall dimensions, it is proposed that rollers (4) be fitted on the underside of the housing and a telescopic handle (12) be fitted in the housing which can be moved between a retracted position in the housing and an extended position and secured in both positions.
Abstract:
The invention concerns a high-pressure cleaning apparatus with a high-pressure pump for a cleaning fluid and with a heat exchanger which comprises a fossil fuel burner (9) and a helical pipe (13) through which the cleaning fluid flows and into whose interior (16) the burner (9) directs the hot combustion gases. According to the invention, in order to optimize the transfer of heat, the height of the cylinder formed by the helical pipe (13) is between three and seven times the internal diameter of this cylinder.
Abstract:
The invention concerns simplifying the production of the motor shaft for a high-pressure cleaning device having a piston pump whose piston is driven by a motor via a wobble plate (4) connected in a rotationally rigid manner to the motor shaft. According to the invention, the wobble plate is connected by positive locking and in a rotationally rigid manner to a plastics coupling element which is mounted at the end face on the motor shaft which has a circular cross-section. A tension rod (24) mounted in the motor shaft (3) tensions the plastics coupling element against the end face (16) of the motor shaft (3) such that frictional engagement is produced.
Abstract:
A high-pressure cleaning apparatus has a piston pump which has a swashplate, is driven by an air-cooled electromotor through a set of gears and carries a pump head with a suction pipe and a pressure pipe. In order to develop such a high-pressure cleaning apparatus and thus achieve a good cleaning power, an improved ease of handling and a lower weight, the electromotor, the set of gears, the piston pump and the pump head are successively arranged one behind the other in the longitudinal direction of the high-pressure cleaning apparatus, and the electromotor is designed as a universal motor with a laminated stator and a rotor, the laminated stator being longer than the diameter of the rotor.
Abstract:
In order to achieve a better cleaning effect in a process for operating a high-pressure cleaning device fitted with a high-pressure pump driven by an electric motor which is switched off on overheating, it is proposed that, to increase the pressure of the stream of liquid produced, the outlet cross-section of an outlet nozzle be briefly narrowed and the reduction in the cross-section be reversed before the motor is switched off owing to the temperature increase. A device for implementing this process is also given.
Abstract:
The invention concerns a connector piece with a screw collar ring for the hose coupling of high-pressure cleaning equipment, the hose coupling having a sleeve with a conical sealing surface and, adjacent to it, a cylindrical sealing surface, plus an external thread for the collar ring of the connector piece, while the connector piece has a cylindrical nipple with a ring seal designed to make a tight seal with the cylindrical sealing surface of the coupling sleeve plus a convex shoulder designed to make a tight seal with the conical sealing surface of the sleeve, the collar ring being fitted so that it can turn freely on the connector piece and so that essentially it cannot move in the longitudinal direction. In order to improve the mechanical protection offered to the coupling components against damage, the invention proposes that the collar ring projects longitudinally over the free end of the nipple and that the ratio of the length of the nipple to its outer diameter is between 0.4 and 0.3.
Abstract:
The invention concerns a device for cleaning hard surfaces, in particular windows, comprising a slit-shaped suction nozzle (6) along which is mounted a flexible wiper lip (27) which extends out beyond the suction nozzle. In order to reduce the power consumption of the suction equipment and also to improve the cleaning action of the device, the invention calls for the wiper lip to be mounted on one wall (4) of the suction nozzle and to be pulled against the opposite wall (2) of the nozzle by the action of the stream of air sucked in through the nozzle, thus closing off the nozzle.
Abstract:
Es wird ein Verfahren und eine Vorrichtung zur elektrischen Signal- und/oder Energieübertragung über eine flexible fluidische Schlauchleitung (10) vorgeschlagen, deren Enden mit fluidischen Anschlusselementen (11) versehen sind und an oder in deren Leitungswandung wenigstens zwei elektrische Leiter integriert sind. Die Einkopplung und/oder Auskopplung der elektrischen Signale und/oder der elektrischen Energie an den Anschlusselementen (11) erfolgt kontaktlos über je wenigstens eine induktive Spule (15, 20).