摘要:
A traveling water screen comprising an endless foraminous belt with flights. The foraminous belt forms a water screen extending from a lower end in a flowing stream to an upper end above the surface of the stream. The stream flows through openings in the foraminous screen. The flights, which may be scoops, are arranged in spaced apart relation on the outer surface of the water screen. The water screen is driven in a direction so that its upstream portion advances upward and its downstream portion downward. The flights form inclined surfaces across the width of the screen from a point of highest elevation to one or more points of lowest elevation at one or both side edges of the screen. As the screen moves, the flights lift fish toward the surface. As a flight breaks the surface, fish slide down the inclined flights toward one or both side edges of the screen to be diverted safely. A second water screen having larger openings than the fish-removal water screen can be positioned upstream to filter out large debris and to protect the fish-removal water screen from heavy impacts in a two-stage filter.
摘要:
A traveling water screen comprising an endless foraminous belt with flights. The foraminous belt forms a water screen extending from a lower end in a flowing stream to an upper end above the surface of the stream. The stream flows through openings in the foraminous screen. The flights, which may be scoops, are arranged in spaced apart relation on the outer surface of the water screen. The water screen is driven in a direction so that its upstream portion advances upward and its downstream portion downward. The flights form inclined surfaces across the width of the screen from a point of highest elevation to one or more points of lowest elevation at one or both side edges of the screen. As the screen moves, the flights lift fish toward the surface. As a flight breaks the surface, fish slide down the inclined flights toward one or both side edges of the screen to be diverted safely. A second water screen having larger openings than the fish-removal water screen can be positioned upstream to filter out large debris and to protect the fish-removal water screen from heavy impacts in a two-stage filter.
摘要:
Conveying systems and method for measuring accelerations in a conveyor advancing through process equipment and taking remedial and prophylactic action in response. The conveyor system includes a conveyor with embedded accelerometers making measurements conveyor accelerations. A controller uses the measurements to control the speed of the conveyor to compensate for unwanted accelerations or to damp the unwanted accelerations. The controller can also use the measurements to warn of unwanted accelerations or to predict the failure of associated or nearby equipment so that maintenance can be scheduled and to detect imminent failures and shut down the process.
摘要:
Conveying systems and method for measuring accelerations in a conveyor advancing through process equipment and taking remedial and prophylactic action in response. The conveyor system includes a conveyor with embedded accelerometers making measurements conveyor accelerations. A controller uses the measurements to control the speed of the conveyor to compensate for unwanted accelerations or to damp the unwanted accelerations. The controller can also use the measurements to warn of unwanted accelerations or to predict the failure of associated or nearby equipment so that maintenance can be scheduled and to detect imminent failures and shut down the process.
摘要:
A separation conveyor using a roller belt whose rollers are already rotating before receiving an article to provide immediate pull-away from an infeed conveyor. The rollers of a roller belt extend through the thickness of the belt and into contact with a bearing surface in a reversing segment of a belt path between the returnway and the carryway of the separation conveyor. The rollers are already rotating on the bearing surface in the reversing segment at the infeed end before they contact articles to avoid delays in pulling articles away from the infeed conveyor and onto the separation conveyor.
摘要:
Conveying system and method for sensing and controlling the surface temperature of a conveyor transporting articles through a process that incidentally changes the temperature of the conveyor. The conveyor system includes a conveyor such as a transport belt having temperature sensors embedded in the belt at spaced locations along its length. Transmitters embedded in the belt transmit temperature readings made by the sensors to a remote controller. The remote controller controls a temperature modification unit in the belt's conveyor path that restores the temperature of the belt to an optimum range for the processing of the articles. The controller creates a temperature map of at least a portion of the conveyor path.
摘要:
A conveyor system in which a modular belt or chain is driven by a drive element rotated at a predetermined variable angular speed to compensate for speed fluctuations due to chordal action. A speed signal generator generates a speed signal generally inverse to the uncompensated linear speed of a belt driven by drive elements rotated at a constant angular speed. The speed signal generator detects an encoded pattern rotating in known relationship to the drive element. The encoded pattern represents a predetermined speed profile that is used to compensate for belt speed fluctuations or to provide custom belt speed performance.
摘要:
Conveying systems and method for detecting the presence of static electric charge on a conveyor. The conveyor system includes a conveyor with an outer conveying surface. Embedded or external static-electricity sensors make measurements of static electricity on the belt's conveying surface. A controller uses the measurements to control the level of electric charges on the belt by transferring charge to or from the belt.
摘要:
Energy-harvesting and -storage devices in conveyor belts and methods for molding those devices integrally into modular belt links and for enhancing energy harvesting through resonance tuning. Piezoelectric materials, electro-active polymers, thermoelectric generators, RF receivers, photovoltaic devices, linear induction generators, and inductive transformer coupling are used to harvest energy to power belt on-board devices.
摘要:
Methods for singulating laterally abutting conveyed articles in a conveyor (60). The method includes separating laterally abutting articles by means of a first conveyor section (62) having in-line rollers (64) or oblique rollers rotating at a first speed in a conveying direction (70) and a second laterally adjacent conveyor section (63) having oblique rollers (65) rotating at a second speed in a direction causing articles atop the oblique rollers (65) in the second section (63) to diverge from articles atop the rollers in the first section. Differing the roller speeds helps the abutting articles to increase their separation in the conveying direction.