Automatic hooking and unhooking lifting device, automatic hooking and unhooking method and feeding system

Abstract

The invention discloses an automatic hooking and unhooking lifting device which comprises a lifting machine, a material cup and an RGV trolley. A set of non-rotatable lifting hooks are symmetrically and fixedly arranged at the two ends of a lifting beam of the elevator, a material cup base is arranged on the RGV, and lifting lugs are arranged at the corresponding positions of the outer side wall of the material cup. The RGV small parking space is arranged in or beside a lifting frame of the lifting machine, the lifting machine cooperates with the transfer trolley, and on the RGB small parking space, a material cup can be automatically hung on a lifting hook and unhooked from the lifting hook. The invention further provides a feeding device. The feeding device comprises the automatic hooking and unhooking lifting device. According to the automatic hooking and unhooking method and the feeding system adopting the automatic hooking and unhooking device, automation, intellectualization and greenization of internal logistics feeding are met.

Description

Technical Field

[0001] The invention relates to the technical field of logistics equipment, and in particular to an automatic hooking and unhooking lifting device, an automatic hooking and unhooking method and a feeding system used in internal logistics. Background Art

[0002] Internal logistics refers to the logistics activities of an enterprise in the production process, that is, the process in which raw materials, parts or semi-finished products flow through the workshops or processes of the production enterprise in the order of the process flow, so that they eventually become finished products and are sent to the finished product warehouse for temporary storage.

[0003] In internal logistics, some processes need to lift items from the ground to a high place, and then put them in the required position for use in the next process. There are many solutions to lift items from the ground to a high place, such as using bucket elevators or belt conveyors to lift solid particles or powders from the ground to a high place, or using pipes to directly lift liquids from the ground to a high place, but these lifting methods can only achieve simple one-to-one or one-to-multi-point lifting tasks. For many types of solid items, that is, there may be dozens or more items, which may be needed in large quantities and need to be lifted to a high place, the above-mentioned methods require a large amount of lifting equipment, which occupies a lot of space and has high investment.

[0004] Reducing the amount of lifting equipment means that there is currently no good solution for the need to lift many types of solid objects to high places and deliver them to designated locations, making the entire process digital, intelligent, and green. Summary of the invention

[0005] The main technical problem solved by the present invention is to provide an automatic hooking and unhooking lifting device, an automatic hooking and unhooking method and a feeding system using the device in internal logistics, so as to meet the requirements of automatic, intelligent and green feeding of internal logistics.

[0006] According to a first aspect, there is provided an automatic hook-unhook lifting device, comprising a hoist, a material cup and an RGV (Rail Guided Vehicle) trolley;

[0007] The hoist comprises a lifting frame, a hanging beam and a lifting device, a group of non-rotatable hooks are symmetrically fixedly arranged at both ends of the hanging beam, the hanging beam is located in the lifting frame, the lifting device is connected to the hanging beam, and an RGV trolley position is arranged at the lower part and the upper part or beside the upper part of the lifting frame of the hoist, and the RGV trolley can enter and exit the RGV trolley position;

[0008] The material cup is a container for transporting materials. A lifting lug is provided at a corresponding position on the outer wall of the material cup. After a set of hooks are hooked on the lifting lug, the hooks and the lifting lug have at least three contact points that are not on the same straight line. The center projection of the material cup is located in the polygon surrounded by all the contact points, so that the material cup can move up and down smoothly in the elevator.

[0009] The RGV trolley is provided with a material cup seat for transporting the material cup;

[0010] The hoist cooperates with the transfer trolley to realize automatic hanging of the material cup on the hook and detachment from the hook.

[0011] In some embodiments, the hoist frame of the hoist is provided with vertical guide rails, and correspondingly, guide wheels are provided at both ends of the hanging beam, so that the liftable hanging beam can be lifted and lowered stably during the lifting process.

[0012] In some embodiments, the lifting device is a double-beam lifting trolley or a lifting electric hoist or a hydraulic cylinder.

[0013] In some embodiments, the RGV trolley has one or two loading cup seats.

[0014] According to the second aspect, an automatic hooking and unhooking method is provided, wherein the hanging beam has an absolute high position in the lifting frame, that is, the highest position at which the hanging beam can be lifted, and an RGV trolley position is arranged at the lower part and the upper part or beside the upper part of the lifting frame. In terms of relative height, the hanging beam has a relatively equal height and low position, and the relatively equal height and low position means that the hanging beam is at this height relative to the RGV trolley position and cannot be lowered further. In this position, the hook on the hanging beam is lower than the lifting ear located at the RGV trolley loading cup;

[0015] The automatic hooking method is that the hanging beam stops at a relatively equal height before the RGV trolley carrying the material cup moves to the RGV trolley position, and the RGV trolley carrying the material cup moves to the RGV trolley position, so that the material cup is directly below the hanging beam. Since the hook on the hanging beam is lower than the lifting lug of the material cup on the RGV trolley at this time, the hanging beam rises, and the hook automatically hooks the lifting lug of the material cup, realizing automatic hooking;

[0016] The method of automatic unhooking is that the hook of the hanging beam hooks the lifting ear of the material cup, which is above the relative height position, the RGV trolley moves to the RGV trolley position, the material cup is facing the empty material cup position of the RGV trolley, the hanging beam descends, the material cup is placed on the RGV trolley, and the hanging beam continues to descend to the relative height position, thus realizing automatic unhooking, and the RGV trolley leaves with the material cup;

[0017] Automatic hooking and unhooking are carried out in cycles.

[0018] According to the third aspect, a feeding system is provided, as a subsystem of internal logistics, in order to realize digitalization and automation, the internal logistics is provided with a SCADA (Supervisory Control And Data Acquisition) system, i.e., a data acquisition and monitoring control system, which feeds materials from low to high, including a discharge station, an RGV trolley track, an automatic unhooking lifting device and a loading station, wherein the discharge station and the hoist in the automatic unhooking lifting device, the material cup and the RGV trolley are all provided with independent controllers connected to the SCADA system by wire or wireless, the loading station is integrated with the material receiving container below, and the material receiving container is also provided with an independent controller, each independent controller has its own number, and the number is used to refer to their own devices in the SCADA system;

[0019] RGV trolley tracks are arranged at both the lower and upper positions. At least one unloading station is arranged next to the RGV trolley track at the lower position. There are multiple RGV trolley tracks at the upper position, which are arranged parallel to each other. A loading station is arranged next to or below the RGV trolley track at the upper position.

[0020] The automatic hook-unhook lifting device has at least one hoist;

[0021] Each of the automatic hook and unhooking lifting device hoisting machine lifting frames straddles one of the RGV trolley tracks located at a lower position, and the upper part of the lifting frame is passed through or passed beside one of the RGV trolley tracks located at a higher position. The RGV trolley track located at the bottom, upper part or beside the upper part of the lifting frame is designated as the RGV trolley position. In addition to the RGV trolley position, the RGV trolley stops at any position on the RGV trolley track according to the task instructions of the SCADA system.

[0022] In some embodiments, the unloading station includes at least an unloading station for purchased raw materials and an unloading station for self-processed raw materials. The unloading stations are all provided with dust removal devices, and there may be multiple sets of dust removal devices on each unloading station.

[0023] In some embodiments, the unloading station is provided with a loading port, and a dust suction sealing valve is provided on the loading port.

[0024] In some embodiments, a loading port is provided at the top of the material cup, a loading port valve is provided on the loading port, a discharging port is provided at the bottom, a discharging port valve is provided on the discharging port, the loading port valve and the discharging port valve are electric valves or electromagnetic valves, an independent controller on the material cup is connected to the loading port valve and the discharging port valve, and a rechargeable power supply is provided on the material cup to power the independent controller and other electrical equipment of the material cup.

[0025] In some embodiments, a material meter is provided on the material cup next to the feeding port to monitor the material status in the material cup.

[0026] In some embodiments, a weighing device is provided on the material cup seat of the RGV trolley, which can weigh the weight of the material cup and indirectly obtain the weight of the raw materials transported by each material cup each time.

[0027] In some embodiments, the RGV cart is equipped with a positioning device and an anti-collision device, which can accurately locate and prevent collisions. The positioning device is a wireless positioning device.

[0028] In some embodiments, the RGV trolley is divided into a ground RGV trolley and an aerial RGV trolley. The aerial RGV trolley is provided with a lifting interface and a return-type dust collector. The lifting interface connects the unloading port of the material cup and the loading port of the loading station when the material cup is unloading to form a unloading channel. The return-type dust collector is connected to the dust suction sealing valve on the raw material bin. During the loading process, negative pressure dust removal operation is performed to prevent dust during the loading process.

[0029] The beneficial effects of the present invention are:

[0030] 1. The automatic hooking, unhooking and lifting device and method of the present invention can automatically complete the hooking, lifting, transporting and unhooking processes of materials, thereby improving production efficiency and reducing operating difficulty and safety risks.

[0031] 2. The feeding system collects data and monitors and controls through the SCADA system, realizing automated and intelligent management and improving logistics efficiency.

[0032] 3. Both the unloading and loading stations are equipped with dust removal devices, which effectively prevents dust problems during material handling.

[0033] 4. Both the material cup and RGV trolley are equipped with independent controllers and sensors, which realize real-time monitoring and precise control of material status. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the structure of the feeding system of Example 1;

[0035] Figure 2 for Figure 1 Schematic diagram of the local enlarged structure

[0036] Figure 3 It is the structural diagram of the elevator;

[0037] Figure 4 This is a schematic diagram of the structure of the high-altitude RGV trolley with a material cup;

[0038] Figure 5 This is a schematic diagram of the structure of the ground RGV trolley with a material cup;

[0039] Figure 6 This is a schematic diagram of the stop position of the hoist beam in the hoist;

[0040] Figure 7 This is a schematic diagram of the structure of the feeding system of Example 2;

[0041] Figure 8 This is a schematic diagram of the structure of the feeding system of Example 3. DETAILED DESCRIPTION

[0042] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are for making the present application better understood. However, those skilled in the art can easily recognize that some features can be omitted in different situations, or can be replaced by other elements, materials, methods. In some cases, some operations related to the present application are not shown or described in the specification, this is to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations according to the description in the specification and the general technical knowledge in the art.

[0043] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0044] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0045] In intralogistics, dozens or more items are lifted from low to high locations.

[0046] Refractory materials are special building materials used in various high-temperature environments to protect high-temperature media such as furnaces or industrial kilns from damage.

[0047] Due to the wide variety of refractory materials, different types use different raw materials. In order to meet normal production, many kinds of raw materials need to be prepared, at least dozens of kinds.

[0048] The loading process in refractory production is one of the important steps in refractory manufacturing. Batching is an important process in refractory production. Batching is the process of taking various raw materials in different weights or volumes according to process requirements. In order to batch quickly, various raw materials are currently stored in silos, and the precise weight is obtained through the unloading weighing device at the bottom of the silo. The raw material feed must be loaded into the silo from the top of the silo, which is the loading process in refractory production.

[0049] Consider the material loading according to the type and production process of refractory materials, raw material composition and demand, etc. The raw materials in the raw material warehouse on the molding batching production line mainly include the following types of raw materials:

[0050] 1. Raw materials that enter the warehouse directly. For some purchased raw materials, they can be used directly without additional processing. Such raw materials can enter the raw material warehouse directly.

[0051] 2. After the raw materials are processed, the raw materials that require different fineness need to be screened and ground for classification to form particles or powders of different particle sizes, and then enter different raw material bins.

[0052] 3. Premix raw materials: premix some of the raw materials that have been screened and processed to form a universal mixture and enter the raw material warehouse.

[0053] Since many types of refractory materials need to be batched on the molding batching production line, many types of raw materials are needed. This requires a large number of raw material warehouses to store different types of raw materials to meet the needs of different types of refractory material batching.

[0054] The implementation of the present invention is specifically described by taking the charging of refractory materials as an example.

[0055] Embodiment 1:

[0056] like Figure 1 - Figure 5 As shown, in the refractory material batching, there are 152 raw material bins, which are concentrated in four rows at high altitude, with 38 raw material bins in each row. A loading port is set on the top of all raw material bins, and the specifications of the loading ports are consistent. A group of RGV trolley tracks is set on the top of each row of raw material bins. The four groups of RGV trolley tracks are parallel to each other. There is another group of RGV trolley tracks next to the four groups of RGV trolley tracks. There is no raw material bin under this group of trolley tracks. The five groups of RGV trolley tracks are RGV trolley tracks set at high places, and blocks are set at both ends of the high RGV trolley tracks.

[0057] A high-altitude RGV trolley is arranged on each set of RGV trolley tracks, a material cup seat is arranged on the high-altitude RGV trolley, a weighing device is arranged on the material cup seat of the high-altitude RGV trolley, a lifting interface and a return-type dust collector are arranged on the high-altitude RGV trolley. When the material cup is unloading, the lifting interface connects the unloading port of the material cup with the loading port of the loading station to form a unloading channel. The return-type dust collector is connected to the dust suction sealing valve on the raw material bin. During the loading process, negative pressure dust removal operation is performed to prevent dust during the loading process.

[0058] There are two elevators set on the same side of all the raw material bins. A set of RGV trolley tracks at a high place without a raw material bin below passes through the two elevators. There is an overhead crane next to each elevator, which spans all four sets of RGV trolley tracks.

[0059] The lifting device of the hoist is a fixed electric hoist, the bottom of the electric hoist is connected to a hanging beam, and a group of non-rotatable hooks are symmetrically fixed at both ends of the hanging beam.

[0060] The lifting device of the overhead crane is a movable electric hoist, that is, an electric hoist with a running car. The bottom of the electric hoist is connected to a hanging beam of the same structure as the hoist. A group of non-rotating hooks are also symmetrically fixed at both ends of the hanging beam.

[0061] There are four hooks in total, two at one end, each hook is L-shaped, and a prismatic protrusion is arranged inside the hook.

[0062] The top of the material cup is provided with a feeding port, a feeding port valve is provided on the feeding port, a discharging port is provided at the bottom, a discharging port valve is provided on the discharging port, the feeding port valve and the discharging port valve are electric valves or electromagnetic valves, and an independent control device on the material cup is connected with the feeding port valve and the discharging port valve. The material cup is provided with a rechargeable power supply to power the independent controller and other electrical equipment of the material cup. A material meter is provided on the material cup next to the feeding port to monitor the material status in the material cup.

[0063] The two sides of the material cup are provided with lifting ears, and the bottom of the lifting ears is provided with a triangular notch corresponding to the hook, which is used for the hook to hook the lifting ears and prevent sliding, and stabilize the material cup. In this embodiment, the number of the material cups is 11.

[0064] The hoisting frame of the hoist is provided with vertical guide rails, and correspondingly, guide wheels are provided at both ends of the hanging beam, so that the lifting beam can be lifted and lowered stably during the lifting process.

[0065] A ground RGV trolley track is set on the ground, and the ground RGV trolley track passes through the lifting frames of two elevators. There are multiple loading stations next to the ground RGV trolley track, including one unloading station for purchased powder ton bags, one unloading station for self-processed powder silo, one unloading station for purchased ton bags of granular materials, and two unloading stations for self-processed granular silos. Among them, the unloading station for self-processed powder silos can be connected to multiple self-processed powder silos by belt conveyors. Similarly, the unloading station for self-processed granular silos can be connected to multiple self-processed granular silos by belt conveyors.

[0066] There are three ground RGV trolleys on the ground RGV trolley track, and two material cup seats are arranged on the ground RGV trolley. Similarly, a weighing device is arranged on the material cup seat of the ground RGV trolley, and a return dust collector is arranged on the ground RGV trolley.

[0067] Since there are ten high-altitude RGV trolleys, three ground RGV trolleys, and 11 material cups, when no material is loaded, there is a material cup on each RGV trolley.

[0068] The high-altitude RGV trolley, the ground RGV trolley, the hoist and the material cup are all equipped with independent controllers with PLC. The material cup is equipped with a rechargeable battery as a power source to power the controller and the electric valve or electromagnetic valve. The high-altitude RGV trolley and the ground RGV trolley are powered by the RGV trolley track. The RGV trolley track is connected to the power supply cable, and the hoist is powered by the power supply cable.

[0069] Both the high-altitude RGV trolley and the ground RGV trolley are equipped with wireless positioning devices, which can accurately locate the position of the RGV trolley. The positioning device can be a wireless positioning device. In order to locate the RGV trolley, more than four wireless locators are set around the silo to send wireless signals to locate the RGV trolley.

[0070] In the refractory material, a SCADA (Supervisory Control And Data Acquisition) system is installed, that is, a data acquisition and monitoring control system, which feeds the material from low to high.

[0071] like Figure 1 As shown in this embodiment, the tracks of the high-altitude RGV trolley are numbered K1, K2, K3 and K4, and the raw material bins under the tracks of the high-altitude RGV trolley are numbered in sequence, from 001 to 152, where the K1 track faces the raw material bins of 001 to 038, the K2 track faces the 039 to 076, the K3 track faces the 077 to 114, and the K4 track faces the 115 to 152. Each bin is assigned a corresponding raw material in SCADA. A weighing device is set under each raw material bin. During the batching process, the data of each material unloading after being weighed by the weighing device will be transmitted to SCADA.

[0072] Each RGV trolley on the high-altitude RGV trolley track is numbered A, and the combinations are K1A, K2A, K3A, K4A, and K5A, of which K5A is the high-altitude RGV trolley on the high-altitude RGV trolley track that passes through two elevators. The two elevators are numbered T1 and T2, and the two overhead cranes are numbered Y1 and Y2, of which overhead crane Y1 is next to elevator T1, and overhead crane 2 is next to elevator T2. The three ground RGV trolleys are numbered D1, D2, and D3, and the four unloading stations on the ground are numbered X1, X2, X3, and X4. The seven material cups are numbered L01, L02, L03, L04, L05, L06, and L07.

[0073] When SCADA finds that the raw material in a certain raw material bin is below the warning line, for example, the raw material in the 022 raw material bin is below the warning line, and the raw material in the 022 raw material bin is powdered alumina, SCADA will issue a loading instruction. The 022 raw material bin is out of material, and the material is loaded at the X1 unloading station. The loading personnel go to the designated unloading station to unload the material according to the loading instruction, that is, to unload the powdered alumina at the X1 station. SCADA also instructs a ground RGV trolley, such as D1, with a material cup, such as L01, to move to the X1 station to load powdered alumina. At the X1 station, the loading personnel writes the loading information into the controller of the material cup L01 through the handheld terminal. The loading information is the type of raw material is powdered alumina and the raw material bin number 022 to which the SCADA instruction was delivered.

[0074] When loading, the loading valve of the loading port of the material cup L01 is opened to start loading powdered alumina. During the loading process, the return dust collector on the ground RGV trolley D1 is connected to the valve of the loading port to remove dust and prevent pollution.

[0075] The weighing device on the loading cup seat of the ground RGV trolley D1 continuously measures the weight, and the level meter on the material cup L01 measures the height of the material in the material cup. When the measurement of any device reaches the specified threshold, the controller of the material cup L01 controls the valve of the loading port to close and complete the loading. At this time, the controller of the ground RGV trolley D1 will obtain the weight of the raw materials in the material cup and transmit it to SCADA. At the same time, the ground RGV trolley D1 moves toward the elevator, such as toward the elevator T1.

[0076] After SACAC sends the loading instruction, it will also send an instruction to move an aerial RGV trolley, such as K1A, on a group of RGV trolley tracks above the 022 raw material warehouse, carrying a material cup L05, to the bottom of the overhead crane Y1 next to the elevator T1. The lifting device of the overhead crane Y1 moves the lifting beam to the top of the K1 track in advance, and lowers the lifting beam to the lowest point, waiting for the aerial RGV trolley K1A to arrive with the material cup L05. When the high-altitude RGV trolley K1A moves with the material cup L05 to the bottom of the overhead crane Y1 track and stops, the electric hoist of the overhead crane lifts the hanging beam, and the hook on the hanging beam will hook the lifting lug of the material cup L05. Continue to lift it, and the material cup L05 will be lifted and leave the high-altitude RGV trolley K1A. Then the electric hoist moves to the top of the K5 track, and the high-altitude RGV trolley K5A on the K5 track is located under the overhead crane. The electric hoist lowers the hanging beam and places the material cup L05 on the high-altitude RGV trolley K5A. The hanging beam continues to descend to the lowest point, and the hook on the hanging beam completely detaches from the lifting lug of the material cup L05.

[0077] like Figure 6 As shown, the high-altitude RGV trolley K5A moves the material cup L09 into the elevator T1. When the high-altitude RGV trolley K5A moves the material cup L05 toward the elevator T1, the electric hoist of the elevator T1 lowers the hanging beam with the hanging beam to a relatively equal height position, such as W2, waiting for the high-altitude RGV trolley K5A to arrive with the material cup L05. When the high-altitude K5A moves the material cup L05 into the elevator T1, the electric hoist of the elevator T1 lifts the hanging beam to the highest position, such as W3. The relative equal height position is relative to the nearest RGV trolley position, at an equidistant height above the RGV trolley position. The hanging beam is at this height and cannot be lowered further. If it is lowered further, it will hinder the movement of the RGV trolley. At this position, the hook on the hanging beam is lower than the hanging ear of the material cup on the RGV trolley. In this way, the hook on the lifting beam hooks up the material cup and lifts the material cup L05 away from the high-altitude RGV trolley K5A, and then the high-altitude RGV trolley K5A leaves the elevator T1.

[0078] When the ground RGV trolley D1 moves the material cup L01 filled with raw materials to the elevator, since there are two material cup seats on the ground RGV trolley D1, the empty material cup seat is directly under the lifting beam of the elevator T1, and the movable overhead crane on the elevator T1 brings the material cup L05 down to the lowest position W1, and places the material cup L05 on the empty material cup position of the ground RGV trolley D1. Then the ground RGV trolley D1 moves and moves the material cup L01 to directly under the lifting beam alone. The electric hoist on the elevator T1 lifts the lifting beam, and the lifting beam rises with the material cup L01. Then the ground RGV trolley D1 leaves with the material cup L05 to the designated unloading station to load materials or to the designated position to wait.

[0079] The electric hoist on the hoist T1 lifts the hanging beam, and the hanging beam rises with the material cup L01 to the highest position W3, and then the high-altitude RGV trolley K5A moves to the hoist T1 again. The electric hoist of the hoist T1 lowers the hanging beam to the relatively equal high position W2, and then the material cup L01 is placed on the high-altitude RGV trolley K5A, and then the high-altitude RGV trolley K5A moves with the material cup L01 to the bottom of the overhead crane.

[0080] The electric hoist of the overhead crane lifts the lifting beam and lifts the material cup L01 away from the high-altitude RGV trolley. Then the electric hoist on the overhead crane moves to the top of the K1 track, and then the electric hoist lowers the lifting beam to place the material cup L01 on the high-altitude RGV trolley K1A.

[0081] The high-altitude RGV trolley K1A carries the material cup L01 and moves to the top of the 022 raw material bin according to the precise positioning guidance of the wireless positioning device. When the material cup L01 is unloaded, the material cup L01 unloading port is connected with the loading port of the 022 raw material bin through the lifting interface on the high-altitude RGV trolley K1A to form a unloading channel. The return dust collector is connected with the dust collection sealing valve on the raw material bin to extract dust. The independent controller on the high-altitude RGV trolley K1A can accurately locate the position of the high-altitude RGV trolley K1A through the wireless positioning device, and can accurately find the 022 raw material bin.

[0082] Through the program set in SACAC, the ground RGV trolley carries different material cups and repeats the above-mentioned action process, which can quickly realize automated, digital and green loading.

[0083] Embodiment 2:

[0084] like Figure 7 As shown, in the refractory material batching, there are 152 raw material bins, which are concentrated in four rows at high altitude, with 38 raw material bins in each row. Loading ports are set on the tops of all raw material bins, and the specifications of the loading ports are consistent. A group of RGV trolley tracks are set on the tops of each row of raw material bins. The four groups of RGV trolley tracks are parallel to each other and are RGV trolley tracks set at high places. Blocks are set at both ends of the high RGV trolley tracks.

[0085] A high-altitude RGV trolley is arranged on each set of RGV trolley tracks, a material cup seat is arranged on the high-altitude RGV trolley, a weighing device is arranged on the material cup seat of the high-altitude RGV trolley, a lifting interface and a return-type dust collector are arranged on the high-altitude RGV trolley. When the material cup is unloading, the lifting interface connects the unloading port of the material cup with the loading port of the loading station to form a unloading channel. The return-type dust collector is connected to the dust suction sealing valve on the raw material bin. During the loading process, negative pressure dust removal operation is performed to prevent dust during the loading process.

[0086] There are two elevators set on the same side of the raw material warehouse. A set of overhead crane tracks is set on the top of each elevator, spanning all four sets of RGV trolley tracks. The lifting device of the elevator is a movable overhead crane. The bottom of the movable overhead crane is connected to a hanging beam. A set of non-rotating hooks are symmetrically fixed at both ends of the hanging beam.

[0087] There are four hooks in total, two at one end, each hook is L-shaped, and a prismatic protrusion is arranged inside the hook.

[0088] The top of the material cup is provided with a feeding port, a feeding port valve is provided on the feeding port, a discharging port is provided at the bottom, a discharging port valve is provided on the discharging port, the feeding port valve and the discharging port valve are electric valves or electromagnetic valves, and an independent control device on the material cup is connected with the feeding port valve and the discharging port valve. The material cup is provided with a rechargeable power supply to power the independent controller and other electrical equipment of the material cup. A material meter is provided on the material cup next to the feeding port to monitor the material status in the material cup.

[0089] The two sides of the material cup are provided with lifting ears, and the bottom of the lifting ears is provided with a triangular notch corresponding to the hook, which is used for the hook to hook the lifting ears and prevent sliding, and stabilize the material cup. In this embodiment, the number of the material cups is 11.

[0090] The hoisting frame of the hoist is provided with vertical guide rails, and correspondingly, guide wheels are provided at both ends of the hanging beam, so that the lifting beam can be lifted and lowered stably during the lifting process.

[0091] After the movable overhead crane with the hanging beam is raised to the highest position in the lifting frame, it can be moved horizontally along the overhead crane track to above the RGV trolley track.

[0092] A ground RGV trolley track is set on the ground, and the ground RGV trolley track passes through the lifting frames of two elevators. There are multiple loading stations next to the ground RGV trolley track, including one unloading station for purchased powder ton bags, one unloading station for self-processed powder silo, one unloading station for purchased ton bags of granular materials, and two unloading stations for self-processed granular silos. Among them, the unloading station for self-processed powder silos can be connected to multiple self-processed powder silos by belt conveyors. Similarly, the unloading station for self-processed granular silos can be connected to multiple self-processed granular silos by belt conveyors.

[0093] There are three ground RGV trolleys on the ground RGV trolley track, and two material cup seats are arranged on the ground RGV trolley. Similarly, a weighing device is arranged on the material cup seat of the ground RGV trolley, and a return dust collector is arranged on the ground RGV trolley.

[0094] Since there are five high-altitude RGV trolleys, three ground RGV trolleys, and seven material cups, when no material is loaded, there is a material cup on each RGV trolley.

[0095] The high-altitude RGV trolley, the ground RGV trolley, the hoist and the material cup are all equipped with independent controllers with PLC. The material cup is equipped with a rechargeable battery as a power source to power the controller and the electric valve or electromagnetic valve. The high-altitude RGV trolley and the ground RGV trolley are powered by the RGV trolley track. The RGV trolley track is connected to the power supply cable, and the hoist is powered by the power supply cable.

[0096] Both the high-altitude RGV trolley and the ground RGV trolley are equipped with wireless positioning devices, which can accurately locate the position of the RGV trolley. The positioning device can be a wireless positioning device. In order to locate the RGV trolley, more than four wireless locators are set around the silo to send wireless signals to locate the RGV trolley.

[0097] In the refractory material, a SCADA (Supervisory Control And Data Acquisition) system is installed, that is, a data acquisition and monitoring control system, which feeds the material from low to high.

[0098] In this embodiment, the tracks of the high-altitude RGV trolley are numbered K1, K2, K3 and K4, and the raw material bins under the tracks of the high-altitude RGV trolley are numbered in sequence, from 001 to 152, where the K1 track faces the raw material bins of 001 to 038, the K2 track faces the 039 to 076, the K3 track faces the 077 to 114, and the K4 track faces the 115 to 152. Each bin is assigned a corresponding raw material in SCADA. A weighing device is set under each raw material bin. During the batching process, the data of each material being unloaded through the weighing device will be transmitted to SCADA.

[0099] Each RGV on the track of the aerial RGV is numbered A, and the combinations are K1A, K2A, K3A, K4A, and K5A. The two elevators are numbered T1 and T2, the three ground RGVs are numbered D1, D2, and D3, and the four unloading stations on the ground are numbered X1, X2, X3, and X4. The eleven material cups are numbered L01, L02, L03, L04, and L05.

[0100] When SCADA finds that the raw material in a certain raw material bin is below the warning line, for example, the raw material in the 022 raw material bin is below the warning line, and the raw material in the 022 raw material bin is powdered alumina, SCADA will issue a loading instruction. The 022 raw material bin is out of material, and the material is loaded at the X1 unloading station. The loading personnel go to the designated unloading station to unload the material according to the loading instruction, that is, to unload the powdered alumina at the X1 station. SCADA also instructs a ground RGV trolley, such as D1, with a material cup, such as L01, to move to the X1 station to load powdered alumina. At the X1 station, the loading personnel writes the loading information into the controller of the material cup L01 through the handheld terminal. The loading information is the type of raw material is powdered alumina and the raw material bin number 022 to which the SCADA instruction was delivered.

[0101] When loading, the loading valve of the loading port of the material cup L01 is opened to start loading powdered alumina. During the loading process, the return dust collector on the ground RGV trolley D1 is connected to the valve of the loading port to remove dust and prevent pollution.

[0102] The weighing device on the loading cup seat of the ground RGV trolley D1 continuously measures the weight, and the level meter on the material cup L01 measures the height of the material in the material cup. When the measurement of any device reaches the specified threshold, the controller of the material cup L01 controls the valve of the loading port to close and complete the loading. At this time, the controller of the ground RGV trolley D1 will obtain the weight of the raw materials in the material cup and transmit it to SCADA. At the same time, the ground RGV trolley D1 moves toward the elevator, such as toward the elevator T1.

[0103] After SACAC sends the loading instruction, it will also send an instruction, that is, a high-altitude RGV trolley, such as K1A, on a group of RGV trolley tracks above the 022 raw material warehouse, carrying a material cup L05, moves to the bottom of the overhead crane track of the elevator T1. The movable overhead crane of the elevator T1 moves the hanging beam to the top of the track of K1 first, and then lowers the hanging beam to a relatively equal height position, such as W2, waiting for K1A to arrive with the material cup L05. When K1A moves with the material cup L05 to the bottom of the overhead crane track of the elevator T1, the movable overhead crane of the elevator T1 lifts the hanging beam to the highest position, such as W3. The relative equal height position means that the hanging beam is at this height relative to the RGV trolley position and cannot be lowered. At this position, the hook on the hanging beam is lower than the ear of the material cup on the RGV trolley. In this way, the hook on the hanging beam hooks up the material cup and lifts the material cup L05 away from the high-altitude RGV trolley K1A, and then the movable overhead crane moves the material cup L05 to the hoist.

[0104] When the ground RGV trolley D1 moves the material cup L01 filled with raw materials to the elevator, since there are two material cup seats on the ground RGV trolley D1, the empty material cup seat is directly under the lifting beam of the elevator T1, and the movable overhead crane on the elevator T1 brings the material cup L05 down to the lowest position W1, and places the material cup L05 on the empty material cup position of the ground RGV trolley D1. Then the RGV trolley D1 moves and moves the material cup L01 to directly under the lifting beam alone. The movable overhead crane on the elevator T1 lifts the lifting beam, and the lifting beam rises with the material cup L01. Then the ground RGV trolley D1 takes the material cup L05 away and goes to the designated unloading station to load materials or to the designated position to wait.

[0105] The movable overhead crane on the hoist T1 lifts the hanging beam, and the hanging beam brings the material cup L01 up to the highest position W3, and then the movable overhead crane moves to the top of K1, and then the hanging beam is lowered to the relatively high and low position W2, and the material cup L01 is placed on the high-altitude RGV trolley K1A, and then the high-altitude RGV trolley K1A moves the material cup L01 to the top of the 022 raw material warehouse, and through the lifting interface on the high-altitude RGV trolley K1A, when the material cup L01 is unloaded, the material cup L01 unloading port is connected with the loading port of the 022 raw material warehouse to form a unloading channel, and the return dust collector is connected with the dust collection sealing valve on the raw material warehouse to extract dust. The independent controller on the high-altitude RGV trolley K1A can accurately locate the position of the high-altitude RGV trolley K1A through the wireless positioning device, and can accurately find the 022 raw material warehouse.

[0106] Through the program set in SACAC, the ground RGV trolley carries different material cups and repeats the above-mentioned action process, which can quickly realize automated, digital and green loading.

[0107] Embodiment three:

[0108] like Figure 8 As shown, in this embodiment, the elevator is arranged at one end of the aerial track, each aerial track corresponds to an elevator, each aerial track passes through the elevator arranged at one end of the track, and each elevator only supplies the raw material bin passing under the aerial track of the elevator.

[0109] Correspondingly, a plurality of ground RGV trolley tracks are arranged on the ground, and the end of each ground RGV trolley track is located under the corresponding hoist, and a corresponding loading station is arranged beside the ground RGV trolley track. In this embodiment, the lifting device of the hoist is a cylinder chain, that is, the hoist is a cylinder chain hoist.

[0110] The above specific examples are used to illustrate the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the art, according to the concept of the present invention, some simple deductions, modifications or substitutions can be made.

Claims

1. An automatic hook-unhook lifting device, characterized in that: Including elevator, material cup and RGV trolley; The hoist comprises a lifting frame, a hanging beam and a lifting device, a group of non-rotatable hooks are symmetrically fixedly arranged at both ends of the hanging beam, the hanging beam is located in the lifting frame, the lifting device is connected to the hanging beam, and an RGV trolley position is arranged at the lower part and the upper part or beside the upper part of the lifting frame of the hoist; The material cup is a container for transferring materials. A lifting lug is provided at a corresponding position on the outer wall of the material cup. After a set of hooks are hooked on the lifting lug, the hooks and the lifting lug have at least three contact points that are not on the same straight line. The center projection of the material cup is located within the polygon surrounded by all the contact points. The RGV trolley is provided with a material cup seat; The hoist cooperates with the transfer trolley to realize automatic hanging of the material cup on the hook and detachment from the hook.

2. The automatic hooking and unhooking lifting device according to claim 1 is characterized in that: The hoist frame of the hoist is provided with vertical guide rails, and correspondingly, guide wheels are provided at both ends of the hanging beam.

3. The automatic hooking and unhooking lifting device according to claim 1 is characterized in that: The lifting device is a double-beam lifting trolley or a lifting electric hoist or a hydraulic cylinder.

4. The automatic hooking and unhooking lifting device according to claim 1 is characterized in that: The RGV trolley has one or two feeding cup seats.

5. An automatic hooking and unhooking method, characterized in that: The hanging beam has an absolute high position in the lifting frame, that is, the hanging beam can be lifted to the highest position. Relative to the RGV trolley position set at the lower part and the upper part or beside the upper part of the lifting frame, the hanging beam has a relative equal height position in relative height. The relative equal height position means that relative to the RGV trolley position, the hanging beam is at this height and cannot be lowered further. At this position, the hook on the hanging beam is lower than the lifting ear located at the RGV trolley loading cup; The automatic hooking method is that the hanging beam stops at a relatively equal height before the RGV trolley carrying the material cup moves to the RGV trolley position, and the RGV trolley carrying the material cup moves to the RGV trolley position, so that the material cup is directly below the hanging beam. Since the hook on the hanging beam is lower than the lifting lug of the material cup on the RGV trolley at this time, the hanging beam rises, and the hook automatically hooks the lifting lug of the material cup, realizing automatic hooking; The method of automatic unhooking is that the hook of the hanging beam hooks the lifting ear of the material cup, which is above the relative height position, the RGV trolley moves to the RGV trolley position, the material cup is facing the empty material cup position of the RGV trolley, the hanging beam descends, the material cup is placed on the RGV trolley, and the hanging beam continues to descend to the relative height position, thus realizing automatic unhooking, and the RGV trolley leaves with the material cup; Automatic hooking and unhooking are carried out in cycles.

6. A feeding system, as a subsystem of internal logistics, is equipped with a SCADA (Supervisory Control And Data Acquisition) system, i.e., a data acquisition and monitoring control system, which feeds materials from low to high places, characterized by: It includes a discharge station, an RGV trolley track, an automatic unhooking lifting device and a loading station. The discharge station and the elevator in the automatic unhooking lifting device, the material cup and the RGV trolley are all equipped with independent controllers connected to the SCADA system by wire or wireless. The loading station is integrated with the material receiving container below, and the material receiving container is also equipped with an independent controller. Each independent controller has its own number, and the number is used to refer to its own device in the SCADA system. RGV trolley tracks are arranged at both the lower and upper positions. At least one unloading station is arranged next to the RGV trolley track at the lower position. There are multiple RGV trolley tracks at the upper position, which are arranged parallel to each other. A loading station is arranged next to or below the RGV trolley track at the upper position. The automatic hook-unhook lifting device has at least one hoist; Each of the automatic hook and unhooking lifting device hoisting machine lifting frames straddles one of the RGV trolley tracks located at a lower position, and the upper part of the lifting frame is passed through or passed beside one of the RGV trolley tracks located at a higher position. The RGV trolley track located at the bottom, upper part or beside the upper part of the lifting frame is designated as the RGV trolley position. In addition to the RGV trolley position, the RGV trolley stops at any position on the RGV trolley track according to the task instructions of the SCADA system.

7. A feeding system according to claim 6, characterized in that: The unloading stations include at least an unloading station for purchased raw materials and an unloading station for self-processed raw materials. The unloading stations are all provided with dust removal devices. There may be multiple sets of dust removal devices on each unloading station. The unloading stations are provided with loading ports, and the loading ports are provided with dust suction sealing valves.

8. A feeding system according to claim 6, characterized in that: A loading port is arranged on the top of the material cup, and a loading port valve is arranged on the loading port. A unloading port is arranged on the bottom, and a unloading port valve is arranged on the unloading port. The loading port valve and the unloading port valve are electric valves or electromagnetic valves. An independent controller on the material cup is connected with the loading port valve and the unloading port valve. The material cup is provided with only a rechargeable power supply, and a material meter is arranged on the material cup next to the loading port.

9. A feeding system according to claim 6, characterized in that: A weighing device is arranged on the material cup seat of the RGV trolley. The RGV trolley is provided with a positioning device and an anti-collision device. The positioning device is a wireless positioning device.

10. A feeding system according to claim 9, characterized in that: The RGV trolley is divided into a ground RGV trolley and an aerial RGV trolley. The aerial RGV trolley is provided with a lifting interface and a return dust collector.

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