Please select the most similar patent number from A, B, C and D. Which number is?
A frozen fish sorting device, comprising a first-stage scattering device (1), a second-stage scattering device (2), a third-stage scattering device (3), a detection and recognition device (4) and a multi-track multi-stage sorting device (5), which are sequentially connected. The first-stage scattering device (1) scatters a large pile of frozen fish, which enters from a feeding hopper (11), into several frozen fish. The second-stage scattering device (2) is used for feeding frozen fish, which are input by means of a second conveyor belt (17), into the next stage one by one. The third-stage scattering device (3) is used for enabling the frozen fish to enter the detection and recognition device (4) one by one. The detection and recognition device (4) performs grading according to weight and type. The multi-track multi-stage sorting device (5) comprises a sixth conveyor belt (52) and a plurality of groups of sorting baffles (54) controlled by stepping electric motors. The stepping electric motors receive signals from the detection and recognition device (4) to open the corresponding sorting baffles (54), such that frozen fish enters, along the baffles (54), a container corresponding to the weight and type of the frozen fish, so as to complete sorting. The frozen fish sorting device is fully automatically controlled, can grade the type and weight of frozen fish and has high sorting efficiency.
A: An automated sorting system, comprising: a primary conveyor belt (11); a plurality of sorting conveyor belts (121, 122, 123) respectively connected to the primary conveyor belt (11); a plurality of secondary sorting conveyor belts (131, 132, 133) respectively connected to one or more sorting conveyor belts (121, 122, 123); a plurality of actuators(141, 142, 143) respectively located near the connecting points of the primary conveyor belt (11) and the sorting conveyor belts (121, 122, 123), and near the connecting points of the sorting conveyor belts (121, 122, 123)and the secondary sorting conveyor belts (131, 132, 133). The actuators (141, 142, 143) are used to transfer the goods on the primary conveyor belt (11) to the sorting conveyor belts (121, 122, 123) or transfer the goods on the sorting conveyor belts (121, 122, 123) to the secondary sorting conveyor belts (131, 132, 133). The automated sorting system can reduce the extent of manual intervention and has high accuracy.
B: Disclosed is a high-efficiency, serial biaxial dynamic classification and recovered dust milling apparatus with automatic baffleplate regulation, used for classification of a gas-solid two-phase fluid in an air-dust mixture. A ring of milling gears (34) to perform staged milling on recovered dust is mounted in an annular space between an outer conical housing (27) and an inlet pipe (1). An axial flow wing-type vane (3) mounted on the outside of the lower part of an inner conical body (5) which is, as a whole, driven into rotation by a variable frequency electric motor (11). A moving vane rotor (10) for centrifugal classification is fixedly mounted on the outside of a top cone (8). The extent of opening of first-stage baffleplates (6) and second-stage baffleplates (7) are respectively controlled and regulated by an automatic baffleplate-regulating mechanism. The present invention adopts multi-stage classification of a gas-solid two-phase fluid of air-dust and staged milling of recovered dust, improving the classification efficiency of the classification apparatus to a great extent, thereby improving the output of a pulverizing plant to a great extent, and reducing pulverization unit consumption, while also greatly expanding the range for regulating the fineness of coal dust and the coal dust uniformity index; therefore greatly improving the adaptive capability of power plant boiler combustion to the type of coal. The present invention can also be applied to material classification apparatuses in industries such as the cement, metallurgy or petrification industry.
C: Disclosed is an industrial logistics impurity screening device facilitating multi-stage screening. An article enters by means of a feeding conveyor belt (1) and an image sensor (6) senses the dimensions of the article. For an unqualified product, first and second driving members (9, 14) and first and second push plates (10, 15) push undersize articles to a first discharge conveyor belt (17), and push oversize articles to a third discharge conveyor belt (19). For an article with qualified dimensions, a first electric motor (22) drives two first guide plates (20) to rotate away from each other, a second discharge conveyor belt (18) is actuated, and the article enters the second discharge conveyor belt (18). A weight sensor (23) senses the weight of the article, and if the weight is qualified, a second electric motor (30) drives a second guide plate (28) to rotate anticlockwise and the product enters a qualified product area through a first discharge port (25), otherwise, the second guide plate rotates clockwise and the product enters an unqualified product area through a second discharge port (26). Two counters (7, 24) count the total number of products and the total number of qualified products after preliminary screening, respectively.
D: A robot cargo sorting system capable of identifying shelf transfer, and a sorting method thereof. The sorting system comprises: movable shelves (2), each of which is provided with a plurality of cargo boxes (21) for loading and unloading cargo, the movable shelves (2) being fixedly provided with identification devices (3) and capable of moving to any vacant unloading region; sorting robots (1), a plurality of sorting robots (1) being provided and capable of travelling on a sorting platform (11), and the sorting robots (1) also being capable of transporting received cargo to a designated unloading region for unloading; a sorting robot positioning device; an introduction device; loading and unloading robots (5), which can receive cargo unloaded from the sorting robots (1), and can also unload the cargo and load a predetermined vacant cargo box (21) of the movable shelves (2) with same; detection devices (4), which can acquire information of the identification devices (3); and a server, which is connected to controllers of the sorting robots (1) in a wireless mode, and is connected to controllers of the loading and unloading robots (5), the detection devices (4) and the introduction device in a wired or wireless mode. The robot cargo sorting system and the sorting method thereof have the beneficial effects of a compact structure, a large sorting amount, full utilization of space and high sorting efficiency.
Answer: C