Control method and device for stirring motor cluster

Abstract

The present invention discloses a control method for a stirring motor cluster, which includes a plurality of high-power frequency converters with different powers corresponding to power a plurality of stirrers, which includes S1, obtaining a required stirring line, configuring a plurality of stirring lines, each of which includes at least one stirrer; S2, according to the total number of stirring lines, the total amount to be stirred is divided and corresponded according to the efficiency of each stirring line, and the single stirring amount of each stirring line is set to be different; S3, the stirrer corresponding to the larger single stirring amount is allocated to the stirring line where the stirrer corresponding to the high-power frequency converter with larger power is located, and the smaller single stirring amount is allocated to the stirring line where the stirrer corresponding to the high-power frequency converter with smaller power is located; S4, the stirring line completes feeding, stirring and discharging according to the stirring amount. The present invention realizes linear management, can complete all stirring as quickly as possible, and is also smoother and more fluent, that is, it can discharge as quickly as possible, and can also save energy.

Description

Technical Field

[0001] The invention relates to a mixer, and in particular to a control method applied to a mixing motor cluster. Background Art

[0002] A mixer is a machine that mixes cement, sand and gravel aggregates and water to make a concrete mixture. In the prior art, it is generally divided into self-falling mixers, forced mixers and continuous concrete mixers. With the development of soil materials and construction technology, the single mixer in the prior art has the problems of waste of raw materials, difficulty in cleaning the inside of the mixer barrel and high production cost. At the same time, the mixing of raw materials in the mixer is still relatively small. With the high integration and industrialization of various projects, the amount of raw materials required before mixing and loading after mixing are in urgent need of coordinated management. Summary of the invention

[0003] In view of the defects existing in the prior art, the purpose of the present invention is to provide a control method for a stirring motor cluster, which can realize linear management, complete all stirring as quickly as possible, and be more smooth and fluent, that is, it can discharge materials as quickly as possible and save energy at the same time.

[0004] To achieve the above objectives, the present invention provides 1. A control method for a stirring motor cluster, which includes a plurality of high-power inverters with different powers correspondingly supplying power to a plurality of stirring machines, characterized in that:

[0005] S1, obtaining a required mixing line, configuring multiple mixing lines, each mixing line comprising at least one mixer;

[0006] S2, according to the total number of stirring lines, the total amount to be stirred is divided according to the efficiency of each stirring line, and the single stirring amount of each stirring line is set to be different;

[0007] S3, allocating the mixer corresponding to the larger single mixing amount to the mixing line where the mixer corresponding to the high-power inverter with larger power is located, and allocating the smaller single mixing amount to the mixing line where the mixer corresponding to the high-power inverter with smaller power is located;

[0008] S4, the stirring line completes feeding, stirring and discharging according to the stirring amount.

[0009] On the basis of the above technical solution, each of the mixing lines includes a plurality of mixers, and there is an upstream and downstream equipment relationship between the plurality of mixers.

[0010] On the basis of the above technical solution, the multiple mixers are powered by the same high-power frequency converter.

[0011] Based on the above technical solution, step S2 includes:

[0012] S201, obtaining the efficiency of the stirring circuit;

[0013] S202, dividing the total amount to be mixed according to the processing capacity so that the completion time of each corresponding mixing line is substantially the same.

[0014] S203, setting the single stirring amount of the stirring line with higher efficiency to be smaller.

[0015] Based on the above technical solution, step S3 includes:

[0016] S301, the mixers in the same mixing line are powered by the same high-power inverter;

[0017] S302, according to the power size of the high-power frequency converter corresponding to the stirring line corresponding to the single stirring amount, so that the completion time of each stirring line corresponding to it increases from small to large or from large to small.

[0018] On the basis of the above technical solution, S5, the unfinished stirring amount of the partial stirring line is transferred to the stirring line with the completed stirring amount.

[0019] Based on the above technical solution, step S5 includes:

[0020] S501, when at least one stirring line has completed the stirring amount, obtaining the stirring amounts of all the stirring lines that have not been put into use;

[0021] S502, adding the stirring amount not put into the stirring line as the new total stirring amount, and looping through steps S2-S5 until the stirring is completed.

[0022] Based on the above technical solution, step S5 includes:

[0023] S501', when at least one stirring line has completed the stirring amount, obtaining the stirring amounts of all the stirring lines that have not been put into use;

[0024] S502', aiming to complete the mixing amount within the deadline, try to allocate it to the mixing line with higher efficiency.

[0025] On the basis of the above technical solution, the stirring line completes the stirring amount, and the last part of the stirring amount has been fed into the mixer.

[0026] On the basis of the above technical solution, each of the stirring lines at least comprises a stirring sub-line for stirring N kinds of mixed materials in parallel, and the stirring sub-line for each kind of mixed material comprises at least two parallel mixers.

[0027] On the basis of the above technical solution, the parallel mixers of each mixing and stirring sub-line discharge materials alternately.

[0028] On the basis of the above technical solution, high-power inverters of different powers are configured according to the stirring amount corresponding to the stirring line.

[0029] Compared with the prior art, the advantages of the present invention are: first, the mixers are clustered, that is, a plurality of mixers form a group for centrally mixing different raw materials, and can centrally complete feeding, discharging and mixing.

[0030] Furthermore, the present invention provides the mixer in the form of a mixing line, that is, there are upstream and downstream mixers or feeding and discharging positions, so as to realize linear management.

[0031] In addition, the total amount of stirring in the present invention is split according to the stirring efficiency of the stirring line, so as to ensure that the entire stirring cluster can complete the stirring as quickly as possible, that is, the entire stirring can be completed as quickly as possible.

[0032] Furthermore, the present invention also stipulates that different stirring lines have different single stirring amounts, so that a stirring line with a small single stirring amount spends less time on feeding, discharging and stirring, and a stirring line with a large single stirring amount spends more time on feeding, discharging and stirring, thereby achieving a stepped mixing time. In this way, the subsequent processes require less waiting time and are smoother and more fluent, that is, the discharge can be carried out as quickly as possible without delaying the subsequent processes.

[0033] Finally, the present invention configures a plurality of high-power frequency converters with different powers to supply power to stirring lines with different single stirring amounts, thereby maximizing the use of the high-power frequency converters and saving energy.

[0034] It should be understood that both the foregoing general description and the following specific embodiments are for the purpose of example and illustration and do not necessarily limit the present application. The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate the subject matter of the present application. At the same time, the specification and the drawings are used to explain the principles of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 The figure is a flowchart of a step of an embodiment of the present invention. DETAILED DESCRIPTION

[0037] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0038] A mixer is a construction machinery that is mainly used to mix cement, sand, various dry mortar and other construction materials. It is a machine that has a shaft with blades rotating in a cylinder or trough to mix a variety of raw materials into a mixture or a suitable consistency. There are many types of mixers, including forced mixers, single-shaft mixers, twin-shaft mixers, and so on.

[0039] The variable-frequency drive (VFD) is a power control device that uses frequency conversion technology and microelectronics technology to control AC motors by changing the frequency of the motor's working power supply. The inverter is mainly composed of rectification (AC to DC), filtering, inversion (DC to AC), braking unit, drive unit, detection unit, and microprocessor unit. The inverter adjusts the voltage and frequency of the output power supply by the internal IGBT's disconnection, and provides the required power supply voltage according to the actual needs of the motor, thereby achieving the purpose of energy saving and speed regulation. In addition, the inverter has many protection functions, such as over-current, over-voltage, overload protection, etc. With the continuous improvement of industrial automation, inverters have also been widely used.

[0040] The embodiment of the present invention provides a control method applied to a stirring motor cluster, which can centrally manage the stirring machine and quickly discharge the material without delaying the subsequent engineering process.

[0041] In order to achieve the above technical effects, the overall idea of ​​this application is as follows:

[0042] A control method for a stirring motor cluster, comprising a plurality of high-power inverters with different powers correspondingly supplying power to a plurality of stirring machines, comprising the following steps:

[0043] S1, obtaining a required mixing line, configuring multiple mixing lines, each mixing line comprising at least one mixer;

[0044] S2, according to the total number of stirring lines, the total amount to be stirred is divided according to the efficiency of each stirring line, and the single stirring amount of each stirring line is set to be different;

[0045] S3, allocating the mixer corresponding to the larger single mixing amount to the mixing line where the mixer corresponding to the high-power inverter with larger power is located, and allocating the smaller single mixing amount to the mixing line where the mixer corresponding to the high-power inverter with smaller power is located;

[0046] S4, the stirring line completes feeding, stirring and discharging according to the stirring amount.

[0047] To summarize, the present application splits the total amount of mixing into a step-by-step manner, and then provides it to the mixing lines for mixing. In this way, the mixing lines with a small amount of mixing spend less time on feeding, discharging and mixing, while the mixing lines with a large amount of mixing spend more time on feeding, discharging and mixing, thereby achieving a step-by-step mixing time. In this way, the subsequent processes require less waiting time and are smoother and more fluent.

[0048] In order to better understand the above technical solution, a detailed description is given below in conjunction with specific implementation methods.

[0049] See also Figure 1 As shown, the embodiment of the present invention provides

[0050] A control method for a stirring motor cluster, comprising a plurality of high-power inverters with different powers correspondingly supplying power to a plurality of stirring machines, characterized in that:

[0051] S1, obtaining a required mixing line, configuring multiple mixing lines, each mixing line comprising at least one mixer;

[0052] Specifically, the present invention brings together a plurality of mixers to form a mixing line for centralized feeding (i.e., feeding) and discharging, and finally achieves mixing of the raw materials in the mixer.

[0053] Optionally, in the present invention, there may be mixers in series or in parallel in a mixing line. When a large number of mixing orders are issued, if the mixers are managed one by one, it will be very chaotic and prone to errors. By centrally managing the mixers, centralized feeding, mixing and discharging can be better achieved.

[0054] In one embodiment, each of the mixing lines includes a plurality of mixers, and there is an upstream and downstream equipment relationship between the plurality of mixers.

[0055] For example, there are 9 mixers in total, among which A, B, C have one mixing line, D, E, F have one mixing line, and G, H, I have one mixing line. At the same time, A and B are connected in parallel and connected in series with C, that is, after A and B mix different or the same raw materials, they are fed to C for mixing. Similarly, D and E are connected in parallel and connected in series with F, and G and H are connected in parallel and connected in series with I.

[0056] S2, according to the total number of stirring lines, the total amount to be stirred is divided and matched according to the efficiency of each stirring line, and the single stirring amount of each stirring line is set to be different.

[0057] Specifically, when an engineering task is issued that requires a huge amount of mixing, all the stirring lines have the same feed, mix the same amount of raw materials, and discharge, then the discharge time of each stirring line is the same. At this time, the discharge port not only needs to wait for this length of time, but also needs to face a huge amount of mixing for discharge. In the present invention, the single stirring amount is set, and the same amount of stirring is not performed, but it is set to different sizes. The raw materials with different sizes of stirring amounts are divided into each production line, and due to their different sizes, the completion time is different: the raw materials with a small single stirring amount are fed, stirred and discharged relatively quickly, and the time is short, and the raw materials with a large single stirring amount are fed, stirred and discharged relatively quickly, and the time is long. In this way, a continuous discharge is formed at the discharge end, and the discharge port no longer needs to wait for a long time.

[0058] Furthermore, a stirring line with high efficiency can complete stirring quickly, while a stirring line with low efficiency cannot. This cannot complete all stirring in the fastest way. Therefore, the present invention counts the efficiencies of different stirring lines and divides them according to the efficiency of each stirring line, so that the stirring lines can be used to the maximum extent.

[0059] For example, a total of 20 tons of raw materials can be divided into 8 tons, 10 tons and 12 tons, and distributed to the lower-efficiency A, B, C mixing lines, the medium-efficiency D, E, F mixing lines and the higher-efficiency G, H, I mixing lines, so that the three mixing lines can basically complete the mixing at the same time. Further configuration A, B, C mixing lines have a single mixing volume of 1500 catties, D, E, F mixing lines have a single mixing volume of 1000 catties, G, H, I mixing lines have a single mixing volume of 500 catties. In this way, G, H, I mixing lines can quickly discharge materials due to their high efficiency and small mixing volume, ensuring less waiting time at the discharge port, and can quickly carry out subsequent projects.

[0060] Furthermore, step S2 includes:

[0061] S201, obtaining the efficiency of the stirring circuit.

[0062] S202, dividing the total amount to be mixed according to the processing capacity so that the completion time of each corresponding mixing line is substantially the same.

[0063] S203, setting the single stirring amount of the stirring line with higher efficiency to be smaller.

[0064] S3, allocating the mixer corresponding to the larger single mixing amount to the mixing line where the mixer corresponding to the high-power inverter with larger power is located, and allocating the smaller single mixing amount to the mixing line where the mixer corresponding to the high-power inverter with smaller power is located;

[0065] S4, the stirring line completes feeding, stirring and discharging according to the stirring amount.

[0066] Specifically, after the raw materials are split, different single mixing amounts are distributed to each mixing line. Due to their different sizes, the completion time is different: the raw materials with a small single mixing amount are fed, mixed and discharged quickly and in a short time, while the raw materials with a large single mixing amount are fed, mixed and discharged quickly and in a long time. In this way, a continuous discharge is formed at the discharge end, and the discharge port can continuously obtain the mixed material. After better calculation, it can even ensure that the discharge end is sufficient and the feeding is completed faster.

[0067] In one embodiment of the present invention, the multiple mixers are powered by the same high-power frequency converter.

[0068] Specifically, for a mixer, a high-power inverter power supply is indispensable. The present invention uses one high-power inverter to correspond to multiple mixers, reducing the complexity of wiring and the cost of maintaining power supply. Furthermore, if a single high-power inverter fails, the multiple mixing lines powered by it will all stop production. Therefore, this embodiment further limits one mixing line to be powered by the same high-power inverter. In this way, even if the high-power inverter fails, it only affects one mixing line.

[0069] Furthermore, in one embodiment of the present invention, step S3 includes:

[0070] S301, the mixers in the same mixing line are powered by the same high-power inverter;

[0071] S302, according to the power size of the high-power frequency converter corresponding to the stirring line corresponding to the single stirring amount, so that the completion time of each stirring line corresponding to it increases from small to large or from large to small.

[0072] When the single mixing volume is small, the weight of the raw materials for feeding, mixing and discharging is low, and the power required by the equipment to operate it is low, so a high-power inverter with smaller power can be selected; when the single mixing volume is large, the weight of the raw materials for feeding, mixing and discharging is high, and the power required by the equipment to operate it is high, so a high-power inverter with larger power can be selected.

[0073] It should also be noted that generally speaking, a stirring line with higher efficiency requires higher power. If the power supply is too low, it will affect the stirring efficiency.

[0074] At the same time, there are different models of high-power inverters in the mixing cluster, both new and old, with different powers. Therefore, allocating them according to the mixing efficiency of the mixing line also ensures that models of different ages and models can be utilized to the maximum extent, saving costs and improving mixing efficiency.

[0075] In one embodiment, the present invention further comprises: S5, transferring the unfinished stirring amount of the partial stirring line to the stirring line with the completed stirring amount.

[0076] Specifically, the advantage of the mixing cluster is that it can centrally manage, such as the storage of raw materials, the feeding and mixing of mixing, and the final discharging. In addition, since the mixing cluster has multiple mixing lines, when a mixing line fails or has a problem, other mixing lines can be immediately arranged to jointly undertake the mixing task. In this way, the failure will not affect the processing of the entire mixing cluster.

[0077] In one embodiment, step S5 includes:

[0078] S501, when at least one stirring line has completed the stirring amount, obtaining the stirring amounts of all the stirring lines that have not been put into use;

[0079] S502, adding the stirring amount not put into the stirring line as the new total stirring amount, and looping through steps S2-S5 until the stirring is completed.

[0080] Specifically, this embodiment increases the stirring rate of at least one stirring line so that it can complete its own stirring task in advance.

[0081] The uninvested mixing amount corresponding to the mixing line that has failed or has problems is added with the mixing amount of other mixing lines, and the mixing input amount is recalculated with the remaining mixing lines as the target.

[0082] For example, a total of 20 tons of raw materials can be divided into 8 tons, 10 tons and 12 tons, and allocated to the mixing lines A, B, C with lower efficiency, D, E, F mixing lines with medium efficiency and G, H, I mixing lines with higher efficiency. After completing 4 tons, 6 tons and 10 tons respectively, the mixing lines G, H, I fail, and the remaining 10 tons are reallocated to the mixing lines A, B, C with lower efficiency and D, E, F mixing lines with medium efficiency according to steps S2-S5.

[0083] In another embodiment, step S5 comprises:

[0084] S501', when at least one stirring line has completed the stirring amount, obtaining the stirring amounts of all the stirring lines that have not been put into use;

[0085] S502', aiming to complete the mixing volume within the deadline, try to allocate it to the mixing line with higher efficiency.

[0086] Specifically, this embodiment distributes the stirring amount according to the efficiency of the stirring line so that the stirring can be completed as quickly as possible.

[0087] When a failure or problem occurs, the uninvested mixing volume corresponding to the mixing line needs to be completed as soon as possible to prevent other failures from causing domino effects. Therefore, in this embodiment, a limited number of mixing lines with higher efficiency are arranged for mixing, and the distribution is carried out within the agreed period.

[0088] For example, a total of 20 tons of raw materials can be divided into 8 tons, 10 tons and 12 tons, and allocated to the lower efficiency A, B, C mixing lines, medium efficiency D, E, F mixing lines and higher efficiency G, H, I mixing lines in turn. After completing 4 tons, 6 tons and 10 tons in turn, the G, H, I mixing lines fail, and the remaining 10 tons are divided into 3 tons and 7 tons and redistributed to the lower efficiency A, B, C mixing lines, medium efficiency D, E, F mixing lines in sequence according to steps S2-S5.

[0089] It should be noted that the stirring line completes the stirring amount, and the last part of the stirring amount has been fed into the mixer.

[0090] In one embodiment of the present invention, each of the stirring lines at least comprises a stirring sub-line for stirring N kinds of mixed materials in parallel, and the stirring sub-line for each kind of mixed material comprises at least two parallel stirrers.

[0091] Specifically, a mixing line in a mixing cluster may have multiple mixing tasks. For different mixing materials, mixing sub-lines are set for mixing. By setting the mixers in parallel, mixing can be performed alternately to continuously supply the mixers at the rear. This can also prevent the failure of one mixer from affecting the entire mixing line.

[0092] It should be understood by those skilled in the art that the embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) containing computer-usable program codes.

[0093] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1A device that provides the functions specified in a block or multiple blocks.

[0094] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0095] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0096] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A control method for a stirring motor cluster, comprising a plurality of high-power inverters with different powers correspondingly supplying power to a plurality of stirring machines, characterized in that: S1, obtaining a required mixing line, configuring multiple mixing lines, each mixing line comprising at least one mixer; S2, according to the total number of stirring lines, the total amount to be stirred is divided according to the efficiency of each stirring line, and the single stirring amount of each stirring line is set to be different; S3, allocating the mixer corresponding to the larger single mixing amount to the mixing line where the mixer corresponding to the high-power inverter with larger power is located, and allocating the smaller single mixing amount to the mixing line where the mixer corresponding to the high-power inverter with smaller power is located; S4, the stirring line completes feeding, stirring and discharging according to the stirring amount; Step S2 includes: S201, obtaining the efficiency of the stirring circuit; S202, splitting the total amount to be mixed according to the processing capacity so that the completion time of each mixing line corresponding to the total amount to be mixed is substantially the same; S203, setting the single stirring amount of the stirring line with higher efficiency to be smaller.

2. The control method for a stirring motor cluster according to claim 1, characterized in that: Each of the mixing lines includes a plurality of mixers, and there is an upstream and downstream equipment relationship between the plurality of mixers.

3. The control method for a stirring motor cluster as claimed in claim 2, characterized in that: The multiple mixers are powered by the same high-power frequency converter.

4. The control method for a stirring motor cluster according to claim 1, characterized in that: Step S3 includes: S301, the mixers in the same mixing line are powered by the same high-power inverter; S302, according to the power size of the high-power frequency converter corresponding to the stirring line corresponding to the single stirring amount, so that the completion time of each stirring line corresponding to it increases from small to large or from large to small.

5. The control method for a stirring motor cluster according to claim 1, characterized in that: S5, transferring the unfinished stirring amount of the partial stirring line to the stirring line with the completed stirring amount.

6. The control method for a stirring motor cluster as claimed in claim 5, characterized in that: Step S5 includes: S501, when at least one stirring line has completed the stirring amount, obtaining the stirring amounts of all the stirring lines that have not been put into use; S502, adding the stirring amount not put into the stirring line as the new total stirring amount, and looping through steps S2-S5 until the stirring is completed.

7. The control method for a stirring motor cluster according to claim 1, characterized in that: Each of the stirring lines at least comprises a stirring sub-line for stirring N kinds of mixed materials in parallel, and the stirring sub-line for each kind of mixed material comprises at least two parallel stirring machines.

8. The control method for a stirring motor cluster as claimed in claim 7, characterized in that: The parallel mixers of each mixing and stirring sub-line discharge materials alternately.

9. A device using the control method for a stirring motor cluster as claimed in any one of claims 1 to 8.

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