摘要:
A weigh module (10) for a belt conveyor apparatus is disclosed. Said module (10) comprises a support means, in the form of a plurality of shafts (30) to support a conveyor belt. The module also includes a means to measure rotation of the shaft, which means is preferably a rotary encoder. The shafts are support on elongate supports. In order to determine the mass of material on a conveyor belt, the module includes a load cell engaging a load plate to determine the load on a belt. The shafts are generally cylindrical and can have a plurality of spaced apart rings along the outer surface to engage a conveyor belt.
摘要:
A method and an apparatus for controlling feeding of solid matter in a process comprising at least one solid matter unloading point (UP), at least one belt conveyor (2, 2', 3, 5) and at least one solid matter feeding point (SP), solid matter being unloaded in the unloading point (UP) from solid matter storage to a belt conveyor (2, 2') arranged to convey said solid matter either directly or via at least one other belt conveyor (3, 5) to the feeding point (SP). In the unloading point (UP), the unloading of the solid matter to the belt conveyor (2, 2') is controlled in such a way that the thickness of the material bed follows a set value determined for it; and in the feeding point (SP), the amount of solid matter to be fed is controlled by controlling the speed (S) of the belt conveyor (2, 2', 3, 5).
摘要:
Metering device (10) for substances, for example raw materials, semi-finished pieces or ingredients in a mixture, formed by at least a container (11) to feed the material, extraction means (15) associated in the lower part with the outlet of the container (11) and weight detection means (19) associated at least with the container (11) and able to detect the weight losses caused by the discharge of the material, wherein the weight detection means (19) are connected to an inlet of a PLC-type processing and control unit (21) by means of at least a signal conversion unit (20) and at least a communication interface unit (23), and an outlet of the PLC-type processing and control unit (21) is connected to a motor (16) of the extraction means (15) by means of at least a communication interface unit (24) and a device (25) to regulate the speed of the motor (16).
摘要:
Apparatus for the weighted dosing in line and continuously of a granular or pulverulent product. It comprises continuous separated bands for the extraction and the dosing, wherein all of the dosing band is weighted and the rate of the extraction apparatus is servo-controlled to the instant measurement value of the charge of the product distributed on the dosing band, and comprises: a) a storage hopper (2) for the product to be dosed (1) under which there is arranged a continuous extraction band (3) of which one of the support drums (5A, 5B) is susceptible of being driven at variable speed by a motor reducing assembly (4), b) a dosing unit (8) arranged under and in line with the extraction band to receive the extracted product, and comprised of a tee-shaped fixed support frame (9) provided at its extremities with posts (10A - 10B - 10C) supporting three strain gauge flexion balances (11A - 11B - 11C) to which is entirely suspended by means of flexible cables (12A - 12B - 12C), an extra light tubular structure (13) and of an endless belt (15) of which the rollers (14A - 14B) are supported by the structure and of which one of the rollers (14A) is acceptable of being driven at variable speed by a motor reducing unit (16). The dosing apparatus also comprises an electronic regulation chain F1-F2 between the motor reducing unit driving the belt of the doser and the motor reducing unit of the extraction apparatus which is such that the drive speed of the extraction belt is servo-controlled to the instant load of the doser belt. Application to the industry of fertilizers.
摘要:
Un appareillage de contrôle pour des installations de traitement de matériaux en ruban et spécialement pour la fabrication de tissus-non-tissus, qui comprend un banc de mesurage (1) sur lequel on fait passer continuellement le matériau traité (0), soutenu entre des suports (6,7) disposés à une distance préfixée et appuyé en un endroit intermédiaire (17) sur un moyen (19) pour mesurer le poids du tronçon de matériau compris entre les supports (6,7). La mesure ainsi relevée, après élaboration, peut être lue sur un indicateur (22), et elle est enregistrée continuellement sur une bande (24) constituant un document relatif au matériau traité dans chaque période d'activité de l'installation. Un dispositif de signalisation (25) avertit en cas de dépassement des limites de poids unitaire préfixées pour le matériau (0), et éventuellement il arrête l'installation. De plus, l'appareillage peut pourvoir automatiquement à un réglage des machines opératrices de l'installation dans un sens tel à corriger les variations relevées dans le poids unitaire du matériau traité (0), particulièrement en réglant son étirage.
摘要:
Verfahren und Vorrichtung zur Ermittlung des Erdmasseanteils in Förderströmen landwirtschaftlicher Produkte wie Zuckerrüben und Kartoffeln, bei dem der Massestrom m K und der Volumenstrom v K auf einer Förderkette erfasst und durch Vergleich mit einer Standardschüttdichte D s der Masseanteil insbesondere Erd- und/oder Steinanteil bestimmt wird, wobei gilt: EA % = (m K - v K x D s ) x 100 : m K