Patent CZ-305194-B6 (CZ)
Title: Method of modeling mechanical processes of bulk materials and device for making the same
Inventor: GELNAR DANIEL
IPC: G01F1/20
Filed: 2013-11-28
Abstract: The present invention provides a correction of a mathematical model of behavior of bulk material with selectable properties relative to the actual state and a device for monitoring behavior of bulk material under various conditions. The invention particularly relates to the conduction of checking and simulation experiments, such as simulation of transportation process on a vibratory conveyor, current and speed fields, interactions between structural elements and transported materials, which have influence on transportation by vibratory conveyors and namely for projecting transportation devices for transportation of bulk materials by making use of computing machinery. The device (1) according to the present invention comprises a validation vibratory conveyor (10) provided with feeding hoppers (71, 72) and discharging hoppers (91, 92), which can be connected with storage tanks (220, 230) and delivery storage tanks (240, 250) or circulatory with a transportation device. The device (1) further comprises a scanner (100), which is arranged from outside of some of the walls (602, 603, 604), sensors (130, 140, 170, 180) for sensing temperature or humidity of environment, speed of rotary drives and incline of a vibrator (50) relative to a frame (20) and it also comprises a heat source (241), a cooling device (242), an electromagnetic radiation source (243), optionally also an electromagnetic radiation sensor (261). The validation vibratory conveyor (10) comprises a system of three frames (20, 30, 40), wherein the frames (20, 30) are coupled with each other through the mediation of elastic elements (301), the frames (30, 40) are coupled with each other through the mediation of two pairs of webs (401, 402) for setting the position of these frames relative to each other. The pair of webs (401) is longer than the pair of webs (402) and overlaps thus the level of the frame (20). A trough (60), having in its central portion a monitored space (12) being bound by transparent walls, is attached to the frame (20). The feeding hopper (71) is attached to the upper portion of the pair of web (401), the feeding hopper (72) is attached to the trough (60) from the side of bulk material inlet (121) into the monitored space (12) and the discharging hoppers (91, 92) are attached to the trough (60) from the side of the outlet (122) thereof. The frame (40) is provided with elements (403) for change of position and stabilization legs (404). The validation vibratory conveyor (10) further comprises the vibrator (50), which is arranged on a positioning device (51), which comprises a frame (510) being reinforced by sheet metal (511), wherein the frame (510) being coupled by means of a hinge (513) with the frame (20) is provided on the side opposite to the hinge (513) with an anchoring section (512). The anchoring section (512) is connected at its one end by means of a removable joint (515) with the positioning device (51) while at its other end it is connected by means of a removable joint (514) with the frame (20). A vibration source (52) is arranged on the positioning device (51) wherein said vibration source (52) drive (521) comprises a carrying wheel (525) and a toothed wheel (523), a drive (522) comprises a carrying wheel (525) and a toothed wheel (524), wherein the toothed wheels (523, 524) are arranged on opposite sides of both the drives (521, 522) relative to the carrying wheels, (525), wherein the carrying wheels (525), as well as toothed wheels (523, 524) are coupled from outer side by means of eccentrics (526). The vibrator (50) further comprises a device (527) for creating or suppression of the mechanical coupling between the wheels (523, 524), and an element (516) for change of position and/or angular displacement of the vibrator (50) relative to the frame (20). The validation vibratory conveyor (10) is further provided with sensors (110, 120, 130, 140, 150, 160) for sensing weight, pressure, temperature, sound, vibrations, a tomographic transducer (190), a device (251) for determining distribution of the bulk material weight, a sensor (252) of the validation vibratory conveyor (10) incline relative to a horizontal plane, and a sensor (253) of the vibrator sound. It is further provided with a sound source (244), a device (246) for providing flow of air encompassing the particles, a magnetic field source (247), a delivery device (15, 17), and a device (16, 18) for withdrawal of gaseous or liquid medium encompassing the particles, optionally also a sensor (262) of flow of gas encompassing the particles, wherein the devices (15, 17) are provided with sensors (245) and the devices (16, 18) are provided with sensors (249). All the sensors (100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 201) are connected to an evaluation unit (210), which is further connected to a control unit (200), whereby the control unit (200) is provided with an electric power transducer (201).