CN205199710U - A expert control system for europe version milling machine - Google Patents

Abstract

The utility model relates to a control system for a pulverizer, in particular to an expert control system for a European version of a pulverizer, including a control unit, a human-computer interaction component connected to the control unit through a cable, a fan, and a fan damper , feeder, mill host, powder separator, discharge valve, the control unit is also connected to the fan current monitoring module, fan air volume monitoring module, ambient temperature monitoring module, host vibration detection module, and mill host current monitoring module through cables As well as the particle monitor, the expert control system for the European version of the mill provided by the utility model has a reasonable structure, can automatically adjust the feeding amount of the feeder, the feeding is constant, the current of the host is constant, and the mill works stably and efficiently. It can intuitively see various parameters on site, and call and view relevant parameters within a certain period of time. It has the advantages of friendly human-computer interaction interface and convenient operation.

Description

Expert control system for European mill

technical field

The utility model relates to a control system for a pulverizer, in particular to a control system capable of automatically adjusting the feeding amount of a feeder, constant feeding, constant current of the main engine, stable and efficient operation of the mill, and the ability to intuitively see various on-site conditions. Parameters, and call the expert control system for the European version of the mill to check the relevant parameters within a certain period of time.

Background technique

At present, the existing European-style mill control system usually includes an electric control cabinet, which is a strong current control cabinet or controlled by simple PLC logic, and then the electric control cabinet controls the automatic feeding of the main engine. The existing The control principle of the European version of the mill control system is usually: the smart ammeter detects the current of the main engine, stops feeding when the current of the main engine is greater than the set value for stopping feeding, and restarts the feeder when the current of the main engine is less than the set value for allowing feeding And feeding; the feeding system of the European version of the mill is an automatic control of gap feeding. The existing European version mill control system has the following problems: 1. The feeding system of the European version mill cannot continuously feed materials at a uniform speed; 2. The output of the European version mill cannot reach the best; 3. The European version mill On-site debugging is required. If the installer debugs well, the output of the European version of the mill will be high. If the installer does not debug well, the output of the European version of the mill will decrease; 4. The failure rate of the control table of the electromagnetic vibration feeder is high, resulting in the adjustment effect 5. There are few intelligent operation functions. For example, when the seasons change, manual adjustment is required to adapt to climate changes such as temperature. If you forget to adjust the parameters, the motor will overheat and burn out due to the high ambient temperature in summer; 6. Only It can display current and voltage parameters, but cannot display related parameters such as temperature and feeding amount.

Contents of the invention

The purpose of the utility model is to overcome the above-mentioned deficiencies, and provide a reasonable structure, which can automatically adjust the feeding amount of the feeder, the feeding is constant, the current of the main machine is constant, the mill works stably and efficiently, and all the on-site can be seen intuitively. Various parameters, and call the expert control system for the European version of the mill to check the relevant parameters within a certain period of time.

The technical scheme that the utility model adopts is:

An expert control system for European-style pulverizers, including a control unit, and human-computer interaction components connected to the control unit through cables, fans, fan dampers, feeders, mill hosts, powder classifiers, and dischargers valve, the control unit is also connected with a fan current monitoring module for monitoring the fan current, a fan air volume monitoring module for monitoring the air output of the fan, an ambient temperature monitoring module for monitoring the ambient temperature of the mill host through cables, Main engine vibration detection module for detecting vibration of mill main engine, mill main engine current monitoring module for monitoring mill main engine current, and powder particle monitor for monitoring powder particle parameters at the discharge valve.

The control unit includes an MCU operation processing module, an AI input module electrically connected to the MCU operation processing module, an AO output module, a DI input module, a DO output module, an RS485 communication module, and an MCU operation processing module and an AI input module respectively , AO output module, DI input module, DO output module, DC power supply module powered by RS485 communication module.

The fan, fan damper, feeder, mill host, powder separator, and discharge valve are respectively connected to the AO output module in the control unit through cables; the fan current monitoring module, fan air volume monitoring module, and ambient temperature monitoring module The module, the host vibration detection module, the mill host current monitoring module, and the powder particle monitor are respectively connected to the AI output module in the control unit through cables.

The human-computer interaction component is a touch liquid crystal display screen.

The touch liquid crystal display screen is connected with the RS485 communication module in the control unit through a cable.

The beneficial effects of the utility model are:

1. The expert control system for the European version of the mill provided by the utility model uses a special control unit to replace the original intelligent ammeter and feeder controller, and integrates the control part into the special control system to improve the degree of integration and detection. Accuracy, and the control unit is better able to transmit and process real-time data;

2. The expert control system for the European version of the mill provided by the utility model can integrate the debugging ideas and methods of R&D engineers and excellent installers into the system in a programmed way (control steps), and set up a one-key expert Debug function. When the equipment arrives at the customer's site, you only need to start the one-key expert debugging function, and the system will automatically adjust according to the ideas and methods of excellent engineers and excellent installers until the European version of the mill works in the best state, which can make the European version of the mill The output of the pulverizer is increased by 3% to 10%, that is, compared with the mill debugged by the installer, the output of the European version of the pulverizer debugged by the R&D engineer can be increased by 0.3~1T;

3. Add an ambient temperature sensor to the control system to detect the temperature of the work site, and automatically adjust the working state of the mill according to the temperature. When the temperature is high, the machine will run with reduced power, and when the temperature is low, the machine will run at full load, which not only ensures the reliable and stable operation of the machine, but also It can prolong the service life of the machine, so that the European version of the mill is always in the best working condition;

4. Using the touch LCD screen as a human-computer interaction component can simultaneously realize multiple functions such as monitoring, reading, and control;

5. The MCU operation processing module is used in the control unit for data processing, which facilitates the design of memory circuits in the control unit, can expand the storage capacity of the system, and can also store the data returned by each sensor, which is convenient for future query and comparison.

In a word, the expert control system provided by the utility model for the European version of the mill has a reasonable structure, can automatically adjust the feeding amount of the feeder, the feeding is constant, the current of the main engine is constant, the mill works stably and efficiently, and can be seen intuitively. Various parameters at the scene, and call to view relevant parameters within a certain period of time, with the advantages of friendly human-computer interaction interface and convenient operation.

Description of drawings

Fig. 1 is a schematic diagram of the functional module structure of the expert control system provided by the utility model for the European mill.

Fig. 2 is a schematic diagram of the functional module structure of the control unit in the expert control system provided by the utility model for the European mill.

detailed description

The core of the utility model is to provide an expert control system for the European type mill.

Below in conjunction with accompanying drawing, the content of the present utility model is further described:

An expert control system for European-style mills, as shown in Figures 1 and 2, includes a control unit, which is connected to man-machine interaction components, fans, fan dampers, feeders, and mill hosts through cables , powder classifier, unloading valve, and the control unit is also connected with the fan current monitoring module for monitoring the fan current, the fan air volume monitoring module for monitoring the fan air volume, and the ambient temperature for monitoring the main machine of the mill through cables. The ambient temperature monitoring module, the main machine vibration detection module used to detect the vibration of the main machine of the mill, the current monitoring module of the main machine of the mill used to monitor the current of the main machine of the mill, and the powder particle monitor used to monitor the particle parameters at the discharge valve The control unit includes an MCU operation processing module, an AI input module electrically connected to the MCU operation processing module, an AO output module, a DI input module, a DO output module, an RS485 communication module, and an MCU operation processing module and an AI input module respectively , AO output module, DI input module, DO output module, DC power supply module powered by RS485 communication module; AO output module connection; fan current monitoring module, fan air volume monitoring module, ambient temperature monitoring module, host vibration detection module, mill host current monitoring module, and powder particle monitor are respectively connected to the AI output module in the control unit through cables. The DI and DO modules in the control unit are used to judge or control the opening and closing states of the fan, fan damper, feeder, mill host, powder separator, and discharge valve respectively; the above-mentioned human-computer interaction components are touch LCD screens , and the touch LCD screen is connected with the RS485 communication module in the control unit through a cable.

working principle:

The control unit separately controls the five equipments of the European version of the mill, the fan, the fan damper, the feeder, the powder classifier, and the discharge valve. . Input parameters in the touch screen: 1. European version mill model (such as MTW175), 2. What size product to produce (such as 325 mesh), 3. Select the type of processed product (such as limestone). According to the parameters input by the operator, the system automatically loads the engineer's best debugging program from the program database, press the one-key start button, the system starts the equipment in order, and debugs the equipment to the best state according to the engineer's debugging program, and according to the project's debugging The idea is to correct the parameters in real time, and then ensure the best state of the European version of the mill.

The debugging steps of the above system are as follows:

1. After confirming that the wiring is correct, turn on the power and adjust the direction of each motor to make the motor running in the same direction as the design.

2. Select the material (eg limestone) in the screen; input the machine model (eg 175). The system automatically calculates the power and rated operating current of each motor according to the model of the machine.

3. Press the one-button start button, the system first starts the discharge valve→starts the powder separator→starts the fan after a delay of 100S→starts the main engine→starts the electromagnetic vibration feeder.

4. Automatically enter the adjustment state. After the system is started, it will automatically enter this state: a. The system controls the size of the damper according to the current of the fan, so that the fan can work at 90% of the load. b. The system controls the feeding amount of the feeder according to the current of the main motor. Let the host work at 40%, 60%, and 80% of the load 30 minutes before the first time and check the vibration of the host. If the vibration of the host is within the allowable range, 30 minutes Finally, the feeding amount will be increased automatically, within the range allowed by the vibration, until it reaches the maximum load. After the debugging is completed, start it up again, and the system will directly enter into the best running state.

5. When the system is running, the system detects the ambient temperature through the AI module. When the ambient temperature exceeds the allowable range of the equipment, it adjusts the feeding amount according to the temperature, reduces the machine load, and protects the motor from being damaged due to excessive temperature.

6. System shutdown: the user only needs to press the stop button, the system will gradually reduce the feeding amount, and when the current of the main motor drops to the no-load current, the system will stop in sequence. The shutdown sequence of the system is: electromagnetic vibration feeder stop→main machine stop→delay 60S→fan stop→delay 80S→powder separator stop→discharging valve stop.

In step 4 of the above-mentioned debugging steps, the method of increasing the output by selecting the relationship between the feeding amount and the vibration of the main engine is specifically, first adjust the current of the main engine to about 60% of the load, and check the vibration of the main engine. If the vibration is within the allowable Within the range, increase the feeding amount, the host current to 80%, detect the vibration, increase the feeding amount, the host current to 100%, detect the vibration amount, if the vibration exceeds the standard, the system will automatically reduce the feeding amount until the host current reaches 90% ; If the detected vibration is within the allowable range, the system will automatically increase the feeding amount. Until the output and vibration reach the best.

It can be seen from the above specific embodiments that the expert control system for the European version of the mill provided by the utility model has a reasonable structure, can automatically adjust the feeding amount of the feeder, the feeding is constant, the current of the main engine is constant, and the mill works stably and efficiently , can intuitively see various parameters on site, and call to view relevant parameters within a certain period of time, with the advantages of friendly human-computer interaction interface and convenient operation.

Claims (5)

1. the expert control system for Europe version flour mill, it is characterized in that: comprise control unit, and by man-machine interaction assembly that cable is connected with control unit, blower fan, air door of fan, batcher, grinding machine main frame, powder concentrator, discharge valve, described control unit is also connected with the blower fan current monitoring module for monitoring blower fan electric current by cable, for monitoring the fan delivery monitoring modular of blower fan air output, for monitoring the environment temperature monitoring modular of environment temperature residing for grinding machine main frame, for detecting the main frame vibration detection module of grinding machine main frame vibratory output, for monitoring the grinding machine main frame current monitoring module of grinding machine main frame electric current and the powder monitor for monitoring discharge valve place powder parameter.

2. the expert control system for Europe version flour mill according to claim 1, is characterized in that: described control unit comprise MCU calculation process module, the AI input module be electrically connected with MCU calculation process module respectively, AO output module, DI input module, DO output module, RS485 communication module and be respectively MCU calculation process module, DC power module that AI input module, AO output module, DI input module, DO output module, RS485 communication module are powered.

3. the expert control system for Europe version flour mill according to claim 2, is characterized in that: described blower fan, air door of fan, batcher, grinding machine main frame, powder concentrator, discharge valve are connected with the AO output module in control unit respectively by cable; Described blower fan current monitoring module, fan delivery monitoring modular, environment temperature monitoring modular, main frame vibration detection module, grinding machine main frame current monitoring module, powder monitor are connected with the AI output module in control unit respectively by cable.

4. the expert control system for Europe version flour mill according to claim 3, is characterized in that: described man-machine interaction assembly is touching liquid-crystal display screen.

5. the expert control system for Europe version flour mill according to claim 4, is characterized in that: described touching liquid-crystal display screen is connected with the RS485 communication module in control unit by cable.