Application of TOP touch screen on spray drying granulator
red light therapy, red light therapy panel, red light therapy, medical laser equipment, led light bed, Photobiomodulation, red led lights therapy, pdt treatment, bio laser therapy, infrared bed, led light therapy Shenzhen Guangyang Zhongkang Technology Co., Ltd. , https://www.nirlighttherapy.com
As a new type of human-machine interface, the touch screen has received attention since its appearance. Its ease of use, powerful functions and excellent stability make it ideal for industrial environments. Users are free to combine text, buttons, graphics, numbers, etc. to process or monitor information that may change at any time. With the rapid development of mechanical equipment, the previous operation interface needs to be operated by a skilled operator, and the efficiency cannot be improved. However, using the human-machine interface, the operator can clearly indicate and inform the operator of the current condition of the machine, making the operation simple and vivid. The use of the touch screen can also standardize and simplify the wiring of the machine. At the same time, it can reduce the number of I/O points required by the PLC and various controllers, reduce the production cost, and increase the added value of the whole set of equipment. South Korea M2I company TOP touch screen and various controllers have good compatibility, modify the program is convenient and flexible.
Founded in 1956, Kunming Chinese Medicine Factory Co., Ltd. is one of the top 50 Chinese patent medicine industrial enterprises, China GMP, GSP drug certification enterprise, one of the 30 industrial key enterprises in Yunnan Province, and a provincial civilized unit. As one of the main equipments of the pharmaceutical production workshop of the factory, the PGL-80C spray drying granulator (Fig. 1) is a high-performance equipment integrating mixing, drying, granulating and coating. Using M2I's TOP6SAS, 10.4 inch double pseudo color touch screen as a human-machine dialogue platform, through the control of the touch screen, it is very convenient to change the state of each motor, the temperature of the inlet and outlet, and other control parameters, so as to be under sealed conditions. Accurate control is achieved to uniformly mix and dry various chemicals, avoiding external pollution, and greatly improving production efficiency and corporate profits. 
Figure (1) PGL-80C spray drying granulator
Second, the process introduction 1, process flow introduction PGL-80C spray drying granulator is to put a certain powder material into the fluidized bed as a seed, the liquid material is pumped to the nozzle atomizer, first with spray The high temperature air is instantaneously contacted to remove most of the moisture, and the residual moisture is dried at the bottom of the fluidized bed at a low temperature and simultaneously granulated. The granulator structure is shown in Figure (2) 
Since the whole process is completely completed under sealed conditions, and the residual water content of the drug in the granulator, the temperature during drying, the length of time, the air volume, the wind pressure, the atomization pressure, the amount of liquid spray, and the like are It is important. If the residual water content is high and the drying temperature is low, the time required is long, which not only reduces the production efficiency, increases the production cost, but also affects the quality of the drug, and also discounts the efficacy; if the residual water content is low, dry The temperature is high and the drug is easily scorched in the granulator, which destroys the efficacy. Therefore, in the production process, the control of the condition in the granulator is very accurate, and the production control is very difficult. However, by continuously collecting relevant information from the controller (PLC) through the touch screen on the control cabinet, the current granulator can be The required information such as the residual water content of the drug, the temperature during drying, and the like are displayed in real time and accurately in the screen, and the granulator is monitored in real time. The production personnel can easily manipulate the device by simply displaying the information in the man-machine window (touch screen) on the control cabinet and the current operating status of the device.
2, electrical control system PGL-80C spray drying granulator hardware parts mainly include M2I company TOP touch screen, LG company Master-kPLC, LG company SV-IS5 inverter, sensors and so on. The control terminal of the PGL-80C spray drying granulator uses the upper monitoring program designed by M2I Top-designer software as the human-computer interaction window. According to the specific requirements of the site during the production process, the specific design schemes in terms of hardware and software are as follows:
1) Introduction to Electrical System The TOP touch screen provides powerful communication functions and can communicate with controllers of many manufacturers. The Top-designer monitoring control and data collection server connects directly to physical I/O, establishing and maintaining a process database. Communication is convenient and reliable. 
Figure (3) Electrical Control System
Figure (3) Electrical control system, TOP and Master-kPLC use RS-232C protocol communication, Master-kPLC and SV-IS5 inverter through RS-485 communication, communication is convenient and reliable. The accurate and timely real-time monitoring of the drug status information in the PGL-80C spray drying granulator is guaranteed.
2) Human-Machine Interface Program The entire touch screen program has more than a dozen engineering screens and several sub-window screens, using animation, bar graph, instrumentation, data acquisition, numerical input, word art, real-time clock, recipe and other components. According to the changes in the animation in the picture and the trend of the bar graph, the dryness of the drug in the granulator can be clearly seen. When the expected value of the production personnel is reached, the touch screen will automatically pop up the small window information, prompting the next step to carry out those Operate until the discharge completes the entire process. If it is set to automatic mode, it will be automatically completed from feeding to spraying, drying, starting and stopping of each damper, adding other liquid materials, shaking bags and discharging. 
A. Automatic manual circuit switching In the “Parameter Setting†screen, the parameters such as material temperature setting value, fan frequency setting value, infusion frequency setting value, debounce time, and debounce frequency are set and enter the operation mode selection interface. Then perform automatic post manual mode selection, as shown in Figure (5)
B. The animation is displayed in the “Run†screen, the rotation of each damper into and out of the fan, the wind direction of the pipe, the opening and closing of the damper, the lifting and lowering of the container, the start and stop of the spray, and the timing of the bag are all made by animation, making the whole process more vivid. Easy to produce personnel to understand the current production situation.
C. Use the small window interface project interface to make a small window interface. When the trigger condition is established, the screen will automatically pop up the window, which is equivalent to expanding the display interface, which is easy for the user to understand more information, and can also add a custom in the window. Keyboard or man-machine dialog box, such as: "Please select the time you want to query first", "Please enter the password", "Do you want to modify it?", "Deselect", please press the "OK" button, etc., truly human And intelligent.
D. A variety of formulas to choose from, according to the actual needs of the equipment, can produce a variety of different varieties of drugs, so the residual water content of various drugs, drying temperature, time length, air volume, wind pressure, atomization pressure, spray The amount of control parameters is not the same. By using the formula function, various product drug parameters are added to the program. As long as the production personnel input the drug name, the parameters controlling the production of the drug are automatically transferred to the PLC, without having to re- Set one by one, you can also modify the unreasonable parameters on the touch screen and save them for next use.
E. Alarm prompts When the equipment is abnormal, it is convenient for maintenance personnel to find out the fault source (granulator, PLC, inverter, other peripheral hardware facilities). We have added alarm prompts in the program to display the current faults in time. The buzzer in the middle gives an alarm. In addition, historical alarms can be used to query the records of all faults in the system, including the specific time of the fault, the source of the fault, and the time to cancel the fault.
F. The specific operation steps of the PGL-80C spray drying granulator are added in the system operation instructions using the text and WordArt tools. The precautions should be taken during the operation and the method of lifting when the system fails.
G. The security measures involve the modification of the recipe parameters, the operation of the important steps, etc. The screens are divided into different operation levels. Only the password of the current level can enter the screen of the level, and the password without the corresponding level cannot enter the corresponding screen.
Third, the conclusion TOP touch screen on the PGL-80C spray drying granulator control cabinet of Kunming Chinese Medicine Factory has been in normal operation since installation, debugging and successful operation. The interface of the whole touch screen operating system is simple and convenient, very user-friendly, and is used. The use brings great convenience. TOP-Designer programming software is also very friendly. Designers can easily implement touch screen online monitoring software, upload and download of recipe data alarm information, and modify some programs to bring designers and users of TOP touch screen. Great convenience.