Multi-equipment cooperative control method of large silo solid particle material homogenizing device

Abstract

The invention discloses a multi-equipment cooperative control method of a large silo solid particle homogenizing device. A bucket elevator transports incoming materials from a low position to a high position; the scraper conveyer conveys the high-position materials to the top of the large silo; the materials enter the silo through a discharge port of the scraper conveyer to be stirred; the supplied materials are stirred in a layered manner through the homogenization module and enter the bottom of the stock bin; performing material uniformity detection on the stirred materials and judging whether the materials are qualified or not; the materials detected to be qualified are conveyed to a bucket elevator feeding port of a finished product bin through a discharging port in the bottom of the homogenizing bin, and the materials detected to be unqualified are returned to the bucket elevator feeding port of the homogenizing bin through the discharging port in the bottom of the homogenizing bin to be circularly stirred until the materials are detected to be qualified; the multiple devices are cooperatively controlled through the control system, the utilization rate of the devices is increased, the material mixing efficiency is improved, and it is ensured that subsequent procedures are completed in order.

Description

Technical Field

[0001] The invention belongs to the technical field of automated control of solid hazardous waste treatment, and in particular relates to a multi-device coordinated control method for a large-scale silo solid particle material homogenization device. Background Art

[0002] In recent years, the production of hazardous solid waste has increased rapidly with the continuous development of the economy. As a necessary pre-processing link for hazardous solid waste treatment, the degree of material homogenization that can be achieved by the material homogenization device remains an important indicator for measuring equipment performance. Especially when facing large and super-large hazardous solid waste treatment industries, batch processing is required, which requires good coordination between equipment. Especially for large silo solid particle material homogenization devices, in order to achieve the purpose of homogenization of different materials, a large number of equipment are involved. Only by coordinated control of each equipment can the low equipment utilization rate and material mixing efficiency be improved, thereby ensuring the orderly completion of subsequent processes. Summary of the invention

[0003] In view of this, the present invention provides a multi-device coordinated control method for a large-scale silo solid particle material homogenization device.

[0004] The specific plan is as follows: A multi-device collaborative control method for a large-scale silo solid particle material homogenization device, wherein the homogenization device comprises a general operation system, wherein the general operation system comprises a control system, a material supply subsystem, a material mixing subsystem, a material detection subsystem and a material transportation subsystem; the multi-device collaborative control method comprises the following steps: S1): The control system sends pre-start instructions to each subsystem and collects status information of each subsystem; S2): The control system sends no-load operation instructions to each subsystem, and detects the no-load operation status of each subsystem, and determines whether the no-load operation is normal. If the no-load operation is abnormal, the control system starts the alarm system, sends an instruction to cut off the operation of the corresponding subsystem, and gradually shuts down the remaining subsystems; If no-load operation is normal, the control system sets the parameters of each subsystem; S3): The control system sends instructions to the material supply subsystem, and controls the bucket elevator and scraper conveyor in the material supply subsystem to deliver the material to the top of the homogenization bin; S4): After the material enters the top of the homogenization bin, the control system sends instructions to the material stirring subsystem, so that the material enters the bottom of the homogenization bin after completing multiple stirring under the material stirring subsystem; S5): The control system sends instructions to the material detection subsystem to sample and detect the material at the bottom of the homogenization bin; S6): The control system receives the feedback result of the material detection subsystem, sends a command to the discharge port at the bottom of the homogenization bin to make the material enter the bidirectional scraper conveyor of the material transportation subsystem. At the same time, the control system sends a command to the material transportation subsystem according to the feedback signal to control the transportation direction of the bidirectional scraper conveyor to achieve material classification; S7): For unqualified materials, the control system controls the transport subsystem to transport the unqualified materials to the feeding port of the bucket elevator of the homogenizing bin, and the control system repeats steps S3) to S5) until all materials are tested and qualified and the cycle ends.

[0005] The control system includes a control center, a controller and a communication device. The controller receives status information of each subsystem through the communication device and sends the status information of each subsystem to the control center. The control center sends instructions to the controller, and the controller sends the instructions to the corresponding subsystem through the communication device.

[0006] The material supply subsystem includes a bucket elevator and a scraper conveyor. The bucket elevator includes a track unit, a material storage unit and a bucket elevator unit. The scraper conveyor includes a hydraulic system unit, a body unit and a scraper chain unit. In step S3), the bucket elevator unit lifts the material to the material storage unit above the homogenizing bin through the track unit, and the scraper conveyor above the homogenizing bin supplies the material in the material storage unit to the top of the homogenizing bin.

[0007] The material storage unit is provided with a high-level limit device and a low-level limit device. When the feeding speed of the bucket elevator and the transportation speed of the scraper conveyor do not match, the limit device of the material storage unit feeds back a signal to the control system; when the control system receives the feedback signal from the high-level limit device of the material storage unit, the control system sends a deceleration command to the bucket elevator; when the control system receives the feedback signal from the low-level limit device of the material storage unit, the control system sends a deceleration command to the scraper conveyor; coordinated control is used to achieve speed matching between the bucket elevator and the scraper conveyor.

[0008] The material stirring subsystem includes at least four groups of homogenization modules, each group of homogenization modules includes a limit device, three groups of spiral feeding components and three groups of bevel gear power components; in step S4), the material stirring subsystem performs multiple stirring of the material through the homogenization module; the control method of the homogenization module is: Before the material reaches the first limit device, the control system sends a command to one of the three bevel gear power components to drive the disc to rotate; when the material passes the first limit device, the control system sends a command to two of the three bevel gear power components to drive the disc to rotate; when the material passes the second limit device, the control system sends a command to three of the three bevel gear power components to drive the disc to rotate; When the material continues to increase and reaches the highest storage point of the homogenization bin, the position sensor on the top of the homogenization bin will give a feedback signal to the control system. After receiving the signal, the control system will send a shutdown command to the material supply subsystem, and the bucket elevator and scraper conveyor will stop working.

[0009] The material detection subsystem includes an automatic material taking unit, an online detection unit and a uniformity determination unit. The method for sampling and detecting the material in S5) is that after the material enters the bottom of the homogenization bin, the control system sends a sampling instruction to the material detection subsystem, the automatic material taking unit performs sampling, and after sampling, the material enters the online detection unit. The uniformity determination unit performs real-time analysis on the uniformity of the material, and the analysis results are fed back to the control system in real time.

[0010] In step S6), the control center first sends instructions to the discharge port at the bottom of the homogenization bin to discharge the materials according to the feedback results, and then sends instructions to the bidirectional scraper conveyor of the material transportation subsystem to classify the materials; the material classification processing includes qualified material processing and unqualified material processing; When the material is qualified, the control center sends a forward rotation command to the bidirectional scraper conveyor of the material transportation subsystem to transport the material to the feeding port of the bucket elevator in the finished product warehouse; When the material fails the inspection, the control center sends a reversal command to the bidirectional scraper conveyor of the material transportation subsystem to transport the material to the bucket elevator feeding port of the homogenization bin.

[0011] The invention discloses a multi-device coordinated control method for a large-scale silo solid particle material homogenization device. The bucket elevator transports the incoming material from a low position to a high position; the scraper conveyor transports the high-position material to the top of the large-scale silo; the material enters the silo through the discharge port of the scraper conveyor for stirring; the incoming material is subjected to layered stirring through a homogenization module and enters the bottom of the silo; the material uniformity is detected for the stirred material and it is judged whether it is qualified; the material that passes the test is transported to the feeding port of the bucket elevator of the finished product bin through the discharge port at the bottom of the homogenization bin, and the material that fails the test is returned to the feeding port of the bucket elevator of the homogenization bin through the discharge port at the bottom of the homogenization bin, and circulated stirring is performed until the material passes the test and enters the feeding port of the bucket elevator of the finished product bin through the discharge port at the bottom of the homogenization bin. The control system implements coordinated control of multiple devices, improves equipment utilization and material mixing efficiency, and ensures that subsequent processes are completed in an orderly manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a process flow chart of homogenizing solid particle materials in a large silo according to the present invention.

[0013] Figure 2 It is a diagram of the equipment composition of the large-scale silo solid particle material homogenization device of the present invention.

[0014] Figure 3 It is a pre-starting flow chart of multi-device coordinated control of a large-scale silo solid particle material homogenization device of the present invention.

[0015] Figure 4 It is a multi-device coordinated control operation flow chart of a large-scale silo solid particle material homogenization device of the present invention.

[0016] Figure 5 yes Figure 4 Enlarged view of part A.

[0017] Figure 6 yes Figure 4 Magnified view of part B.

[0018] Figure 7 yes Figure 4 Magnified view of part C.

[0019] Figure 8 yes Figure 4 Enlarged view of part D.

[0020] Fig. 9 yes Figure 4 Enlarged view of part E. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the implementation of the present invention, not all of the implementations. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1 As shown, a multi-device coordinated control method for a large-scale silo solid particle material homogenization device, the homogenization device includes a general operation system, the general operation system includes a control system, a material supply subsystem, a material mixing subsystem, a material detection subsystem and a material transportation subsystem, and is implemented by the following process: 1) The bucket elevator in the material supply subsystem transports the material to the material storage device at the top; 2) The scraper conveyor in the material supply subsystem transports the material to the top of the homogenization bin for unloading; 3) The bevel gear power assembly of the material mixing subsystem drives the disc to rotate and continuously feed the screw feeder; 4) The spiral feeding component of the material stirring subsystem stirs a variety of solid particle materials; 5) The material online monitor of the material detection subsystem performs online material collection and uniformity detection on the material; 6) The bidirectional scraper conveyor of the material transportation subsystem transports the mixed materials in a classified manner.

[0023] like Figure 2 As shown, the control system includes a control center, a controller and a communication device; in the control system, the control center can obtain and display the operating status information of each subsystem in the overall operating system through the controller and the communication device and send corresponding work instructions to them.

[0024] The material supply subsystem includes a bucket elevator and a scraper conveyor, the bucket elevator includes a bucket elevator unit, a track unit, a material storage unit and a bucket elevator signal transceiver unit; the bucket elevator unit bucket lifts the material into the material storage unit through the track unit, and the bucket elevator signal transceiver unit is communicatively connected with the control system; the scraper conveyor includes a hydraulic system unit, a fuselage unit, a scraper chain unit and a scraper conveying signal transceiver unit; the fuselage unit is provided with a hydraulic system unit and a scraper chain unit, the hydraulic system drives the scraper chain unit to operate, and the scraper conveying signal transceiver unit is communicatively connected with the control system.

[0025] The material stirring subsystem includes a bevel gear power assembly and a spiral feeding assembly. The bevel gear power assembly includes a bevel gear unit, a power unit, a limit device and a bevel gear power signal transceiver assembly. The power unit drives the bevel gear unit. The limit device detects the height of the material in the stirring subsystem. The bevel gear power signal transceiver assembly is connected to the control system for communication. The spiral feeding assembly includes a spiral feeding unit, a spiral power unit, a guide unit and a spiral signal transceiver assembly; the spiral power unit drives the spiral feeding unit, the guide unit guides the material, and the spiral signal transceiver assembly is communicatively connected with the control system.

[0026] The material detection subsystem includes a material online monitor, and the material online detector includes an automatic material picking unit, an online detection unit, a material detection signal transceiver unit and a uniformity judgment unit; the automatic material picking unit is used to obtain materials, the online detection unit is used to detect materials, the uniformity judgment unit is used to analyze the uniformity of materials, and the material detection signal transceiver unit is communicatively connected to the control system.

[0027] The material transport subsystem includes a transport hydraulic system unit, a material transport body unit, a material transport signal transceiver unit and a bidirectional scraper unit.

[0028] Workflow: Such as Figure 3 and Figure 4 As shown, the specific working process of the multi-device coordinated control method of the large-scale silo solid particle material homogenization device is as follows: The control center sends a pre-start command, and the controller begins to collect the status information of each stand-alone device through the communication device and feeds it back to the control center. After obtaining the information, the control center sends a no-load operation command for the stand-alone device. After receiving the no-load operation command, each stand-alone device starts no-load operation. The control center monitors the no-load operation status of each stand-alone device and determines whether the no-load operation is normal. If the stand-alone device has abnormal no-load operation, the control center will start the alarm system and send a command to cut off the operation of the corresponding stand-alone device to the controller, and send a statistical command to each device to control each stand-alone device to gradually shut down. If the no-load operation of each stand-alone device is normal, the control parameters of the control center can be set. After the setting is completed, the operation control center sends a start-up operation command, and the material supply subsystem in the general operation system starts working first.

[0029] like Figures 4 to 5 As shown in the figure, when the general operation system performs the material supply operation, the control center sends the material lifting work instruction to the bucket elevator. After receiving the instruction, the bucket elevator starts to work. The bucket elevator unit starts to carry the material from the material storage device at the bottom of the track unit and lifts it upward along the track unit until the material storage unit above the track unit performs the unloading operation. The material is supplied to the scraper conveyor through the material storage unit. At this time, the control center sends the scraper conveyor and sends the operation instruction. After receiving the instruction, the scraper conveyor starts to work. The scraper unit starts to transport the material to the top of the homogenization bin. After reaching the top, the hydraulic system of the scraper conveyor opens the unloading port, and the material enters the material mixing subsystem from the top of the homogenization bin. At the same time, the low and high limit devices of the upper material storage device are in the detection state. When the feeding speed of the bucket elevator and the transportation speed of the scraper conveyor do not match, the limit device of the material storage device will take effect and feedback the signal to the control center through the signal transceiver unit. When the control center receives a high-level feedback signal from the material storage device, the control center will send a deceleration command to the bucket elevator; when the control center receives a low-level feedback signal from the material storage device, the control center will send a deceleration command to the scraper conveyor; the speed matching of the bucket elevator and the scraper conveyor is achieved through coordinated control.

[0030] like Figure 4 and Figure 6As shown, after the material supply operation is completed, the material enters the first mixing layer. At this time, the control center first judges the first limit device of the first mixing layer. Before reaching the first limit device, the control center sends a command to one of the three bevel gear power components to drive the disc to rotate; after crossing the first limit device, the control center sends a command to two of the three bevel gear power components to drive the disc to rotate; after crossing the second limit device, the control center sends a command to three of the three bevel gear power components to drive the disc to rotate; when the material continues to increase and reaches the highest storage point of the homogenization bin, the position sensor at the top of the homogenization bin will feedback a signal to the control center. After receiving the signal, the control center will send a stop command to the material supply subsystem, and the bucket elevator and scraper conveyor will stop working; when the material is lower than the position sensor at the top of the homogenization bin, the position sensor at the top of the homogenization bin will feedback a signal to the control center again. After receiving the signal, the control center will send a work command to the material supply subsystem, and the bucket elevator and scraper conveyor will continue to work.

[0031] like Figure 4 and Figure 7 As shown, the material then enters the second mixing layer. At this time, the control center judges the first limit device of the second mixing layer. Before reaching the first limit device, the control center sends a command to one of the three bevel gear power assemblies to drive the disc to rotate; after crossing the first limit device, the control center sends a command to two of the three bevel gear power assemblies to drive the disc to rotate; after crossing the second limit device, the control center sends a command to three of the three bevel gear power assemblies to drive the disc to rotate.

[0032] like Figure 4 and Figure 8 As shown, the material then enters the third mixing layer. At this time, the control center determines the first limit device of the third mixing layer. Before reaching the first limit device, the control center sends a command to one of the three bevel gear power assemblies to drive the disc to rotate; after crossing the first limit device, the control center sends a command to two of the three bevel gear power assemblies to drive the disc to rotate; after crossing the second limit device, the control center sends a command to three of the three bevel gear power assemblies to drive the disc to rotate.

[0033] like Figure 4 and Fig. 9As shown, the material finally enters the fourth mixing layer. At this time, the control center judges the first limit device of the fourth mixing layer. Before reaching the first limit device, the control center sends a command to one of the three bevel gear power components to drive the disc to rotate; after passing the first limit device, the control center sends a command to two of the three bevel gear power components to drive the disc to rotate; after passing the second limit device, the control center sends a command to three of the three bevel gear power components to drive the disc to rotate. Through four-layer mixing, the homogenization of various materials can be achieved.

[0034] After the material leaves the material mixing subsystem, it enters the bottom of the homogenization bin, and the material detection subsystem starts working. The control center first sends a sampling instruction to the material detection subsystem, and after receiving the instruction, the material detection subsystem starts sampling. Then the control center sends a uniformity detection instruction to the online detection unit, and after receiving the instruction, the online detection unit starts to implement online material uniformity analysis. Finally, the online detection unit feeds back the test results to the control center through the signal receiving unit.

[0035] The control center makes a judgment after receiving the test results. When the material is qualified, the control center sends a forward command to the two-way scraper conveyor of the material transportation subsystem, and opens the discharge port of the homogenization bin at the same time. The two-way scraper conveyor starts working after receiving the forward command, and transports the material to the bucket elevator feeding port of the finished product bin; when the material is unqualified, the control center sends a reverse command to the two-way scraper conveyor of the material transportation subsystem, and opens the discharge port of the homogenization bin at the same time. The two-way scraper conveyor starts working after receiving the reverse command, and transports the material to the bucket elevator feeding port of the homogenization bin.

[0036] For unqualified materials, when entering the material storage unit of the uniform bin, the control center sends a lifting command to the bucket elevator of the material supply subsystem to circulate the material. This process uses the method of step S3) to supply materials, the method of step S4) to stir materials, the method of step S5) to detect materials online, and the method of step S6) to classify materials. When all materials are tested and qualified, the control center sends a shutdown command to each subsystem, and each device realizes orderly shutdown after receiving the command.

[0037] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. A multi-device coordinated control method for a large-scale silo solid particle material homogenization device, characterized in that: The homogenization device includes a general operation system, which includes a control system, a material supply subsystem, a material mixing subsystem, a material detection subsystem and a material transportation subsystem; the multi-device collaborative control method includes the following steps: S1): The control system sends pre-start instructions to each subsystem and collects status information of each subsystem; S2): The control system sends no-load operation instructions to each subsystem, and detects the no-load operation status of each subsystem, and determines whether the no-load operation is normal. If the no-load operation is abnormal, the control system starts the alarm system, sends an instruction to cut off the operation of the corresponding subsystem, and gradually shuts down the remaining subsystems; If no-load operation is normal, the control system sets the parameters of each subsystem; S3): The control system sends instructions to the material supply subsystem, and controls the bucket elevator and scraper conveyor in the material supply subsystem to deliver the material to the top of the homogenization bin; S4): After the material enters the top of the homogenization bin, the control system sends instructions to the material stirring subsystem, so that the material enters the bottom of the homogenization bin after completing multiple stirring under the material stirring subsystem; S5): The control system sends instructions to the material detection subsystem to sample and detect the material at the bottom of the homogenization bin; S6): The control system receives the feedback result of the material detection subsystem, sends a command to the discharge port at the bottom of the homogenization bin to make the material enter the bidirectional scraper conveyor of the material transportation subsystem. At the same time, the control system sends a command to the material transportation subsystem according to the feedback signal to control the transportation direction of the bidirectional scraper conveyor to achieve material classification; S7): For unqualified materials, the control system controls the transport subsystem to transport the unqualified materials to the feeding port of the bucket elevator of the homogenization bin, and the control system repeats steps S3) to S5) until all materials are tested and qualified and the cycle ends.

2. The multi-device coordinated control method of a large-scale silo solid particle material homogenization device according to claim 1 is characterized in that: The control system includes a control center, a controller and a communication device. The controller receives status information of each subsystem through the communication device and sends the status information of each subsystem to the control center. The control center sends instructions to the controller, and the controller sends the instructions to the corresponding subsystem through the communication device.

3. The multi-device coordinated control method of a large-scale silo solid particle material homogenization device according to claim 1 is characterized in that: The material supply subsystem includes a bucket elevator and a scraper conveyor. The bucket elevator includes a track unit, a material storage unit and a bucket elevator unit. The scraper conveyor includes a hydraulic system unit, a body unit and a scraper chain unit. In step S3), the bucket elevator unit lifts the material to the material storage unit above the homogenizing bin through the track unit, and the scraper conveyor above the homogenizing bin supplies the material in the material storage unit to the top of the homogenizing bin.

4. The multi-device coordinated control method of a large-scale silo solid particle material homogenization device according to claim 3 is characterized in that: The material storage unit is provided with a high-level limit device and a low-level limit device. When the feeding speed of the bucket elevator and the transportation speed of the scraper conveyor do not match, the limit device of the material storage unit feeds back a signal to the control system; when the control system receives the feedback signal from the high-level limit device of the material storage unit, the control system sends a deceleration command to the bucket elevator; when the control system receives the feedback signal from the low-level limit device of the material storage unit, the control system sends a deceleration command to the scraper conveyor; coordinated control is used to achieve speed matching between the bucket elevator and the scraper conveyor.

5. The multi-device coordinated control method of a large-scale silo solid particle material homogenization device according to claim 1 is characterized in that: The material stirring subsystem includes at least four groups of homogenization modules, each group of homogenization modules includes a limit device, three groups of spiral feeding components and three groups of bevel gear power components; in step S4), the material stirring subsystem performs multiple stirring of the material through the homogenization module; the control method of the homogenization module is: Before the material reaches the first limit device, the control system sends a command to one of the three bevel gear power components to drive the disc to rotate; when the material passes the first limit device, the control system sends a command to two of the three bevel gear power components to drive the disc to rotate; when the material passes the second limit device, the control system sends a command to three of the three bevel gear power components to drive the disc to rotate; When the material continues to increase and reaches the highest storage point of the homogenization bin, the position sensor on the top of the homogenization bin will give a feedback signal to the control system. After receiving the signal, the control system will send a shutdown command to the material supply subsystem, and the bucket elevator and scraper conveyor will stop working.

6. The multi-device coordinated control method for a large-scale silo solid particle material homogenization device according to claim 1 is characterized in that: The material detection subsystem includes an automatic material taking unit, an online detection unit and a uniformity determination unit. The method for sampling and detecting the material in S5) is that after the material enters the bottom of the homogenization bin, the control system sends a sampling instruction to the material detection subsystem, the automatic material taking unit performs sampling, and after sampling, the material enters the online detection unit. The uniformity determination unit performs real-time analysis on the uniformity of the material, and the analysis results are fed back to the control system in real time.

7. The multi-device coordinated control method for a large-scale silo solid particle material homogenization device according to claim 1 is characterized in that: In step S6), the control center first sends instructions to the discharge port at the bottom of the homogenization bin to discharge the materials according to the feedback results, and then sends instructions to the bidirectional scraper conveyor of the material transportation subsystem to classify the materials; the material classification processing includes qualified material processing and unqualified material processing; When the material is qualified, the control center sends a forward rotation command to the bidirectional scraper conveyor of the material transportation subsystem to transport the material to the feeding port of the bucket elevator in the finished product warehouse; When the material fails the inspection, the control center sends a reversal command to the bidirectional scraper conveyor of the material transportation subsystem to transport the material to the bucket elevator feeding port of the homogenization bin.

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