A comprehensive sugar production control system

Abstract

This invention discloses a comprehensive sugar production control system, comprising a leaching automatic control subsystem and a video inspection subsystem. The leaching automatic control subsystem includes a DCS operation layer, a DCS control layer, and a field equipment layer. The DCS operation layer includes control equipment; the DCS control layer includes a leaching section control cabinet connected to the control equipment; the field equipment layer includes field equipment, a data acquisition unit for collecting the operating status of the field equipment, and an execution unit for adjusting the operating status of the field equipment. The signal acquisition unit and the execution unit are respectively connected to the leaching section control cabinet and form a leaching water automatic control loop; the video inspection subsystem includes a video control device and an image acquisition device. The image acquisition device is wirelessly connected to the video control device via a field switch. The image acquisition device is deployed in the leaching section. Using this system, the continuous leaching water can be precisely controlled, which can not only improve the efficiency of obtaining continuous leaching juice and sugar juice, but also save raw materials and water consumption.

Description

Technical Field

[0001] This invention belongs to the field of sugar production technology, and in particular relates to a comprehensive sugar production control system. Background Technology

[0002] The sugar-making process is complex, with each step closely interconnected; any malfunction in any step will affect sugar-making efficiency and juice quality. The primary step in the sugar-making process is the juice extraction stage. This stage mainly involves using a continuous soaking method to obtain sugar juice from pre-treated beet shreds after dry conveying. In this stage, the beet shreds are located in a continuous soaking tank, where they are rinsed with a large amount of water to obtain continuous soaking exudate. This exudate is then subjected to multiple and multi-stage heating and evaporation processes to obtain the sugar juice.

[0003] Currently, in this process, beet shreds are usually rinsed by timed water supply. The water supply cannot be adjusted in real time as needed. The problem is that too much water affects the evaporation efficiency in the later stage, while too little water affects the amount of juice that seeps out, which easily leads to waste. In response, this application designs a comprehensive sugar production control system. Summary of the Invention

[0004] To address the aforementioned issues, this application provides a comprehensive sugar production control system. This system allows for precise control of the water used in continuous leaching, thereby improving the efficiency of obtaining continuous leaching juice and sugar juice, and saving raw materials and water consumption.

[0005] This invention provides a comprehensive sugar production control system, comprising an extraction automatic control subsystem and a video inspection subsystem;

[0006] The leaching automatic control subsystem includes a DCS operation layer, a DCS control layer, and a field equipment layer. The DCS operation layer includes control equipment; the DCS control layer includes a leaching section control cabinet, which is connected to the control equipment via cables and transmits data with the control equipment; the field equipment layer includes a leachate mixing tank, a drift device, and a continuous leaching unit. The drift device includes a drift device and a drift tank. The drift tank is located at the outlet end of the drift device and is equipped with a first level transmitter. The leachate mixing tank is equipped with a second level transmitter. Simultaneously, the inlet end of the leachate mixing tank is connected to at least one final-effect condensate pump, and the outlet end is connected to the inlet of the drift device via the drift pump. The outlet of the leaching tank is connected to the inlet side of the continuous leaching unit via a water supply pipeline. A flow meter and a control valve are installed on the water supply pipeline. The first level transmitter, the second level transmitter, and the flow meter serve as signal acquisition units. The final-effect condensate pump, the drift pump, and the control valve serve as execution units. The signal acquisition unit and the execution unit are connected to the leaching section control cabinet via wired or wireless means and together with the leaching section control cabinet, they form a leaching water self-control loop. That is, the leaching section control cabinet can control the operating frequency of the drift pump and / or the opening degree of the control valve on the water supply pipeline according to the level signal acquired by the first level transmitter and / or the flow meter. The leaching section control cabinet can control the start and stop of the final-effect condensate pump according to the level signal acquired by the second level transmitter.

[0007] The video inspection subsystem includes a video control device and an image acquisition device. The image acquisition device is wirelessly connected to the video control device via a field switch and is deployed at the leaching section.

[0008] As a preferred embodiment of this application, a flow meter and a juice extraction frequency pump are respectively installed at the juice outlet of the continuous leaching unit. The flow meter and the juice extraction frequency pump are respectively connected to the leaching section control cabinet as a signal acquisition unit and an execution unit. The leaching section control cabinet can control the operating frequency of the juice extraction frequency pump according to the flow signal collected by the flow meter.

[0009] As a preferred embodiment of this application, the continuous leaching tank has a multi-stage leaching structure. A temperature transmitter is installed on one leaching chamber of the continuous leaching tank. The temperature transmitter is connected to the leaching section control cabinet as a signal acquisition unit. The leaching section control cabinet can control the steam flow rate entering the leaching chamber based on the temperature signal acquired by the temperature transmitter.

[0010] As a preferred embodiment of this application, the field equipment layer further includes a leaching reflux juice metering tank, which is connected to the leaching reflux juice heater via a hot scalding booster pump. The inlet end of the leaching reflux juice heater is equipped with a flow meter. The flow meter and the hot scalding booster pump are respectively connected to the leaching section control cabinet as a signal acquisition unit and an execution unit. The leaching section control cabinet can control the operating frequency of the hot scalding booster pump based on the flow signal acquired by the flow meter.

[0011] As a preferred embodiment of this application, the image acquisition device comprises multiple sets, which are respectively installed at the installation positions of the soaking tank, the drifting water tank, and the juice extraction pump.

[0012] As a preferred embodiment of this application, the image acquisition device is associated with an alarm signal, and a real-time image can be automatically displayed on the video control device when a device malfunction is detected.

[0013] Compared with existing technologies, the advantages of this application are:

[0014] (1) A unified monitoring platform was formed by using the leaching automatic control subsystem and the video inspection subsystem to realize unified monitoring of sugar leaching equipment, reduce on-site operators, and reduce manual intervention.

[0015] (2) The basic data of the leaching section is automatically collected by the acquisition unit, and then the corresponding execution unit is controlled by the leaching section control cabinet to realize the automatic control of the leaching section.

[0016] (3) The automation process and control precision are high, which can improve the quality and efficiency of sugar juice, while reducing the cost of raw materials. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the integrated sugar production control system provided in Embodiment 1 of the present invention.

[0018] Figure 2 The schematic diagram of the leaching water self-control circuit provided in Embodiment 1 of the present invention.

[0019] Figure 3 This is a control principle diagram of the leaching automatic control subsystem provided in Embodiment 1 of the present invention. Detailed Implementation

[0020] Example 1: This example provides a comprehensive sugar production control system, which includes a leaching automatic control subsystem and a video inspection subsystem. See [link to relevant documentation]. Figure 1 .

[0021] The leaching automation subsystem described in this embodiment includes a DCS operation layer, a DCS control layer, and a field device layer. The DCS operation layer includes a control device, which in this embodiment is an industrial computer, preferably installed in a central control room. The DCS control layer includes a leaching section control cabinet, which is connected to the control device via cables and transmits data with it. The control device can write control commands and parameters to the leaching section control cabinet and store, display, and analyze the data transmitted by the control cabinet. The leaching section control cabinet is installed in the leaching section; in this embodiment, the leaching section control cabinet is an existing DCS control cabinet. The on-site equipment layer includes a leachate mixing tank, a drift device, and a continuous immersion unit. In this embodiment, the drift device includes a drift device and a drift tank. The drift tank is located at the outlet end of the drift device and is equipped with a first level transmitter. The continuous immersion unit includes a large continuous immersion unit and a small continuous immersion unit. The leachate mixing tank is equipped with a second level transmitter. Simultaneously, the inlet end of the leachate mixing tank is connected to at least one final-effect condensate pump, and the outlet end is connected to the inlet of the drift device via the drift pump. The outlet of the drift tank is connected to the inlet sides of the large and small continuous immersion units via water supply pipelines. The water supply pipelines are equipped with flow meters and control valves. See [reference needed]. Figure 2 In this embodiment, the first level transmitter, the second level transmitter, and the flow meter serve as signal acquisition units, while the final-effect condensate pump, the drift pump, and the control valve serve as execution units. The signal acquisition units and execution units are connected to the leaching section control cabinet via wired or wireless means, respectively, and together with the leaching section control cabinet, form a leaching water self-control loop. (See [link to documentation]). Figure 3That is, the leaching section control cabinet can control the operating frequency of the drift water pump and / or the opening of the control valve on the water supply pipeline connected to the inlet side of the Dalian leaching tank and the small leaching tank based on the liquid level signal collected by the first liquid level transmitter and / or flow meter. The leaching section control cabinet can also control the start and stop of the final-effect condensate pump based on the liquid level signal collected by the second liquid level transmitter. Specifically, when the liquid level value collected by the first liquid level transmitter is lower than the preset value, it indicates that the liquid volume in the drift water tank is low and water needs to be added. At this time, the operating frequency of the drift water pump can be increased by the leaching section control cabinet to add water to the drift tank. When the liquid level value collected by the first liquid level transmitter is higher than the preset value, it indicates that the liquid volume in the drift water tank is high and water does not need to be added. At this time, the drift water pump can be stopped or its operating frequency reduced by the leaching section control cabinet. At the same time, the opening of the control valve can also be adjusted. To increase the liquid delivery flow rate, when the flow meter detects that the liquid flow rate on the water supply pipeline is too high or too low, the opening of the control valve can be adjusted through the leaching section control cabinet to ensure that the water flow rate on the water supply pipeline meets the preset value. In this way, the continuous leaching efficiency can be improved while saving water consumption. When the liquid level of the leaching water mixing tank collected by the second liquid level transmitter is high, the last-effect condensate pump is stopped by the leaching section control cabinet, that is, the water supply to the leaching water mixing tank is stopped. When the liquid level of the leaching water mixing tank collected by the second liquid level transmitter is low, the last-effect condensate pump is started by the leaching section control cabinet to replenish the leaching water mixing tank in time. In this embodiment, the water in the leaching water mixing tank is the main supply unit of the continuous leaching water. Therefore, ensuring that the water volume in the leaching water mixing tank is sufficient is the primary condition for ensuring the normal operation of the continuous leaching section.

[0022] In this embodiment, the specific way the acquisition unit and execution unit are integrated with the leaching section control cabinet needs to be determined based on their own structure, interface functions or models. This embodiment does not make specific limitations.

[0023] The video inspection subsystem described in this embodiment includes a video control device and an image acquisition device. In this embodiment, the video control device is preferably an existing industrial computer device, which has a large storage space and data processing capability. This device is also deployed in the central control room, which facilitates unified supervision by the staff. The image acquisition device is wirelessly connected to the video control device through a field switch. This image acquisition device is deployed in the leaching section and can be used to collect the operating status of each piece of equipment in the leaching section, which is convenient for the staff to remotely monitor. In this embodiment, the image acquisition device is preferably associated with an alarm signal, so that a real-time image can automatically pop up on the video control device when a equipment failure is detected.

[0024] In this embodiment, the image acquisition device includes at least four sets, which are respectively deployed at the installation locations of the Dalian soaking tank, the small Dalian soaking tank, the drifting water tank, and the juice extraction pump (locations that facilitate the acquisition of the overall operating status of the equipment). The operating status of the Dalian soaking tank, the small Dalian soaking tank, the drifting water tank, and the juice extraction pump can be monitored in real time using these four sets of image acquisition devices to ensure their normal operation. At the same time, anomalies can be detected and dealt with in a timely manner based on the monitoring, thereby improving the operating efficiency of the equipment.

[0025] In this embodiment, the leaching water control loop in the leaching automatic control subsystem adjusts the water volume in the percolation water mixing tank and the drift device in real time, ensuring the normal operation of the Dalian leaching tank and the small leaching tank, while realizing automatic control of the leaching section. This improves the automation and precision of the leaching section's operation. Furthermore, the image acquisition device in the video inspection subsystem collects the operating status of each piece of equipment on site in real time and displays it on the video control device. In other words, this embodiment uses the leaching automatic control subsystem and the video inspection subsystem to form a unified monitoring platform, which not only realizes unified monitoring of sugar leaching equipment, reduces on-site operators, and reduces manual intervention, but also improves the quality and efficiency of sugar juice production and reduces the cost of raw materials.

[0026] Example 2: Compared with Example 1, the difference in this example is that a flow meter and a variable frequency pump for extracting juice are respectively installed at the juice outlet of the Dalian immersion vessel and the small immersion vessel. The flow meter and the variable frequency pump for extracting juice are connected to the control cabinet of the immersion section as signal acquisition unit and execution unit, respectively. The control cabinet of the immersion section controls the operating frequency of the variable frequency pump for extracting juice according to the flow signal collected by the flow meter. In this example, the flow meter, the variable frequency pump for extracting juice and the control cabinet of the immersion section form a control loop. The extraction speed of sugar juice can be controlled by the control loop to ensure effective extraction of sugar juice.

[0027] Example 3: Compared with Example 1 or 2, the difference in this example is that both the large and small leaching tanks are multi-stage leaching structures. Temperature transmitters are installed on one leaching chamber of each of the large and small leaching tanks. The temperature transmitters are connected to the leaching section control cabinet as signal acquisition units. The leaching section control cabinet can control the opening of the corresponding valves based on the temperature signals collected by the temperature transmitters, thereby controlling the steam flow rate entering the first leaching chamber and thus controlling the leaching temperature of the large and small leaching tanks to ensure effective extraction of sugar juice.

[0028] Example 4: Compared with Examples 1, 2, or 3, the difference in this example is that the field equipment layer also includes an leaching reflux metering tank. In this example, the leaching reflux metering tank is used to hold the sugar juice (exudate) after being treated by the primary heating evaporator. The leaching reflux metering tank is connected to the leaching reflux heater (reheating evaporator) through a hot scalding booster pump. The inlet end of the leaching reflux heater is equipped with a flow meter. The flow meter and the hot scalding booster pump are respectively connected to the leaching section control cabinet as a signal acquisition unit and an execution unit. That is, the flow meter, the hot scalding booster pump, and the leaching section control cabinet constitute a control loop. The leaching section control cabinet controls the operating frequency of the hot scalding booster pump according to the flow signal collected by the flow meter, thereby controlling the amount of reflux juice entering the leaching reflux heater.

[0029] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific structures and characteristics in the solutions is not described in detail here. It should be noted that those skilled in the art can make several improvements without departing from the present invention, and these should also be considered within the scope of protection of the present invention. These improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of the claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A comprehensive sugar production control system, characterized in that, It includes an leaching automatic control subsystem and a video inspection subsystem; The leaching automatic control subsystem includes a DCS operation layer, a DCS control layer, and a field equipment layer. The DCS operation layer includes control equipment; the DCS control layer includes a leaching section control cabinet, which is connected to the control equipment via cables and transmits data with the control equipment; the field equipment layer includes a leachate mixing tank, a drift device, and a continuous leaching unit. The drift device includes a drift device and a drift tank. The drift tank is located at the outlet of the drift device and is equipped with a first level transmitter. The leachate mixing tank is equipped with a second level transmitter. Simultaneously, the inlet of the leachate mixing tank is connected to at least one final-effect condensate pump, and the outlet is connected to the inlet of the drift device via the drift pump. The outlet of the water tank is connected to the inlet side of the continuous leaching unit via a water supply pipeline. A flow meter and a control valve are installed on the water supply pipeline. The first level transmitter, the second level transmitter, and the flow meter serve as signal acquisition units. The final-effect condensate pump, the drift pump, and the control valve serve as execution units. The signal acquisition unit and the execution unit are connected to the leaching section control cabinet via wired or wireless means and together with the leaching section control cabinet, they form a leaching water self-control loop. That is, the leaching section control cabinet can control the operating frequency of the drift pump and / or control the opening of the control valve on the water supply pipeline according to the level signal acquired by the first level transmitter and / or the flow meter. The leaching section control cabinet can control the start and stop of the final-effect condensate pump according to the level signal acquired by the second level transmitter. The video inspection subsystem includes a video control device and an image acquisition device. The image acquisition device is wirelessly connected to the video control device through a field switch. The image acquisition device is deployed at the leaching section site. The juice outlet of the continuous leaching unit is equipped with a flow meter and a juice extraction frequency pump. The flow meter and the juice extraction frequency pump are connected to the leaching section control cabinet as a signal acquisition unit and an execution unit, respectively. The leaching section control cabinet can control the operating frequency of the juice extraction frequency pump according to the flow signal collected by the flow meter. The continuous leaching unit has a multi-stage leaching structure. A temperature transmitter is installed on one of the leaching chambers of the continuous leaching unit. The temperature transmitter is connected to the leaching section control cabinet as a signal acquisition unit. The leaching section control cabinet can control the steam flow rate entering the first leaching chamber according to the temperature signal acquired by the temperature transmitter. The field equipment layer also includes a leaching reflux juice metering tank, which is connected to a leaching reflux juice heater via a hot scalding booster pump. The inlet end of the leaching reflux juice heater is equipped with a flow meter. The flow meter and the hot scalding booster pump are connected to the leaching section control cabinet as a signal acquisition unit and an execution unit, respectively. The leaching section control cabinet can control the operating frequency of the hot scalding booster pump based on the flow signal acquired by the flow meter.

2. The integrated sugar production control system as described in claim 1, characterized in that, The image acquisition device comprises multiple sets, which are respectively installed at the locations of the soaking tank, the drift water tank, and the juice extraction pump.

3. The integrated sugar production control system as described in claim 1, characterized in that, The image acquisition device is associated with the alarm signal, and a real-time image can be automatically displayed on the video control device when a device malfunction is detected.

Images