KR20100007942U - Local controll system for Dust-collector - Google Patents

Abstract

The posted content is filtered through contaminated air that is sucked in

Collect and transmit operation information of discharged filter dust collector

To minimize the time and cost of constructing a system with basic control

will be.

The present invention is the filtration pressure, which is the basic information for grasping the state of the industrial filter dust collector,

Output information such as sensor to measure temperature and dust concentration is applied to various controllers

Function to convert the information into available information and receive the settings necessary for control.

By integrating the functions, users can see the key functions for configuring the remote operation system.

Its purpose is to allow easy replacement by design.

Filter Dust Collector, Automatic Operation

Description

Local control system for filtration dust collector {Local controll system for Dust-collector}

The present invention is to provide the information needed to construct the local control system of the bag filter.

The functions needed to enable acquisition, analysis and control in one system

It is about how to implement it as one.

The control of the bag filter is generally small single type and can be set by self setting.

Small dust collector that keeps driving. By dividing the operating parts into large facilities

Driving, collecting various information with sensors, etc., in the central control room

It can be classified into a centralized dust collector which controls the operation based on the background.

In small dust collectors, a timer is provided to drive the diaphragm valve.

It operates by setting method, and the lower discharge equipment is operated by separate manual switch.

It is managed in a way that is controlled by manpower. This small dust collector is

In order to build a control facility that measures the appropriate load and drives it when necessary,

Separate control with pressure measuring sensor, A / D converter, PLC and operation panel

There is a difficulty in developing a program. Also, to detect abnormalities of the device

The implementation of functions is technically difficult and practically impossible.

In large dust collectors, measuring sensors (temperature, pressure, differential pressure, dust concentration,

To the central control room to control the status of the equipment

In the central control room, professional operators can control the operation of the equipment.

It adopts a control method.

       The bag filter is designed to remove contaminated air and remove dust attached to the surface of the filter.

Using the diaphragm valve (3) in the opposite direction to blow out the pressure air to the filter

Removed dust is attached and dropping dust is discharged at the bottom

(Screw conveyor 9, rotary valve 8, etc.) to discharge the structure

Have

In case of large capacity, this bag filter is provided to the air monitoring network of the Ministry of Environment.

A plurality of pressure sensors, for the collection of operational status information and effective operation

Equipped with temperature sensor, fine dust detection sensor and various gas flow detection sensors

It operates and controls the equipment by using collected operation information and saves this data.

And transmitted to the atmospheric monitoring network. In case of small capacity dust collector, the pressure gauge

Attach the thermometer and check the operation status of the equipment to adjust the operation status.

It takes the form of maintenance. Conventional dust collector of diaphragm valve

For driving, separate driving board called multi-timer is used and individual operation is performed.

Information of sensors that measure pressure, temperature, etc.

It is sent to the central control room where the facility operator checks the status and adjusts the operation status.

Used as data. Blower, which is the facility that is responsible for the operation of the actual equipment

The discharge device is configured to operate manually in the control panel attached to each facility.

It is used. This type of bag filter is to build an automation system.

In order to invest the development cost of the same amount as the production cost of the equipment

There is a problem that manpower should be input.

The present invention provides a system for efficiently operating this type of bag filter.

Essential to the composition, but for individual implementations technically and financially

Consolidate the difficult elements into one component to connect the measuring and driving devices

In a short time, even without specialized programming and control

It is to make intelligent control system easy and low cost.

In a single-type dust collector, it is possible to add some configurations without special expertise.

In order to implement a product that can realize optimal operation by simply

The waveform output is converted into numerical values for information collection through the sensor, which is the information collection means used.

It has the function of converter to convert and output function to control equipment

Measured to implement the product and perform its functions effectively.

Module that controls the operation of equipment by using pressure.

By developing and embedding modules to detect and install sensors,

Connect the output wiring to the control panel of the driving machine to control the power relay drive.

In this way, the system is configured to easily implement the optimal operation of the equipment.

The present invention is necessary when constructing the control system of the bag filter in the usual way.

Many components required for constructing measuring sensors, A / D converters, PLCs and individual communication networks

Convert, store, and store measured values on sensors to minimize technical, financial, and time

By integrating control signal output and other functions into one hardware,

It has the effect of drastically reducing the amount of money required for ware construction.

In addition, it optimizes the technical matters necessary for the efficient operation and management of the bag filter.

It is implemented as an internal program so that a separate technical manager can

To maintain optimal operation even without energy consumption

The effect can be achieved at the same time.

The main configuration of the present invention is largely to input and convert the information of the measurement sensor

The input terminal 11, the control unit 12 for storing and determining various control information,

A communication unit 13 for transmitting, an output terminal 14 for outputting a control signal of basic power equipment,

It consists of a setting unit 15 which can set the basics of various controls.

Input stage 11 is a 4-20mA current output, which is an output signal of a commonly used sensor and

It is equipped with 8 terminals that input 0-5V voltage output as analog value.

Various sensors can be connected. RS 232/485 communication is also supported.

It is equipped with a communication terminal that can be connected to the sensor.

An input can be received. Input analog signal of each terminal is 16bit

It is converted to digital values and stored in memory. This function is used to configure the measurement system.

It is configured to replace the function of A / D converter which is an essential element.

The control unit 12 is designated through the information collected from the input terminal 11 and the setting unit

The control terminal and the information received through communication are synthesized and the designated terminal of the output terminal is

Control and input information, control information and output information

It is responsible for transmitting.

The inputted information is analyzed and the contents of the corresponding contents are determined according to the contents specified for each input terminal.

Value is converted and stored, and the value is combined with the output control information to output the communication unit.

Is sent as information.

The communication unit 12 uses an RS 232/485 terminal for com communication and an RJ-45 terminal for Ethernet communication.

PC (personal computer), PLC (progragmable logic controller)

Transfers the result information calculated by the controller through communication with peripheral controllers

It is configured to receive a control command.

Setting of the communication unit 12 is a communication method selection and standardized communication through the jumper

Providing protocols to control equipment using communications from personal computers

It allows you to receive and send the necessary information.

In addition, it is possible to communicate with the PLC by embedding the standard communication protocol of the PLC.

The setting unit 15 may control the control unit 13 by using the value of the input terminal 11.

It has the function to set and adjust basic information. Input value of pressure sensor

To adjust the operation cycle of the equipment and to open and close the equipment by using the temperature value.

It can also perform functions such as emergency stop and alarm signal output.

The output stage 14 uses the results calculated by the controller to determine the main device of the bag filter.

It has a function to output a signal for adjusting the operation.

Adjust the operating cycle of diaphragm valve or open / close the lower discharge device

Enables control of elements required for individual automatic operation of equipment such as opening and closing of dampers

do.

By using the present invention having the above function, the user can filter the pressure inside the dust collector.

Use of compressed air by adjusting the load of filter media by intermittent operation using a car

Differential pressure operation system that can be expected to reduce the life, increase the life of the filter medium and increase the dust removal efficiency

Configuration. Depending on the amount of incoming air and the amount of dust, the pipeline

Flexible running system configuration to adjust. By measuring the temperature inside the pipeline

Configuration of temperature maintenance system to control temperature through water injection. Inside dust collector

Temperature change and heat sensor to prevent fire and spread

It is easy to build an individual automatic operation system according to the needs of the facility such as the system configuration.

.

1 is a view showing the structure of a typical bag filter

2 is a view showing the configuration and connection structure of the main parts of the invention

* Explanation of symbols for important parts of the drawings

1. Filter media (bag filter)

2. Air nozzle

3. Diaphragm Valve

4. Air tank

5. Pressure gauge

6. Diaphragm Valve Controller

7. Blower

8. Rotary valve

9. Screw Conveyor

10. Piping Pipe

11. Input stage

12. Communication department

13. Control

14. Output stage

15. Settings

Claims (2)

In order to control the standalone dust collector, When attached, the measurement result can be numerically measured and the result can be You can adjust the operation status of the equipment according to the set value and save and send the result. Control system consisting of an integrated printed circuit board. The facility using the pressure difference before and after the inside of the dust collector measured in claim 1 By determining the operation and using the slope of the pressure change inside the pressure tank System that can determine the operation state of diaphragm valve.

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