CN213631637U

CN213631637U - Air compressor centralized monitoring device of submerged arc furnace dust removal system

Info

Publication number: CN213631637U
Application number: CN202022186424.5U
Authority: CN
Inventors: 陈海宏; 杨建明
Original assignee: Jiayuguan Hongdian Ferroalloy Co ltd
Current assignee: Jiayuguan Hongdian Ferroalloy Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-07-06
Anticipated expiration: 2030-09-29

Abstract

The utility model discloses a hot stove dust pelletizing system air compressor machine centralized monitoring device in ore deposit relates to the hot stove dust pelletizing system field in ferroalloy ore deposit, and there is comparatively lagging in control in present a great deal of air compressor machine, and the operation has the problem of certain defect. The utility model discloses a device includes the computer, the air compressor machine, PLC control system and analog signal detect and input module, PLC control system includes switching value input module and switching value output module, the computer passes through ethernet erection joint PLC control system and analog signal detection and input module, and be connected to the air compressor machine through the ethernet, realize the many signals centralized monitoring of air compressor machine running state, accelerate information transfer, exchange and processing speed, the normal operating of equipment has been guaranteed more in the guardianship operation, and reduce the equipment fault rate.

Description

Air compressor centralized monitoring device of submerged arc furnace dust removal system

Technical Field

The utility model relates to a hot stove dust pelletizing system field in ferroalloy ore deposit, in particular to hot stove dust pelletizing system air compressor machine centralized monitoring device in ore deposit.

Background

Environmental protection work becomes one of the key work of the long-term development of the country, and the quality of a dust removal system of an iron alloy smelting plant directly influences environmental protection and restricts production, so that the equipment operation of the dust removal system is very important. The air compressor is used as air source equipment of a pneumatic control system of the dust removal system, and the stability and reliability of the air compressor in the operation process are directly related to the safety of production environment protection. And through centralized control transformation, the running state (temperature, pressure and current) of the air compressor can be monitored in real time, problems can be found in time, operation is carried out in time, a post is reminded of on-site inspection and confirmation, the fault rate of a dust removal system and equipment is further reduced, and accident enlargement is prevented. The normal production of the furnace is indirectly ensured, and the production and consumption can be increased.

At present, a plurality of air compressors have the problems of relatively backward control and certain defects in operation. On one hand, the control mode is often in local distributed manual operation, and inspection personnel need to be attended. On the other hand, if the equipment is loaded and operated for a long time, the equipment is not checked in time, so that the energy consumption is increased, the equipment is seriously damaged, and the maintenance and operation cost is relatively high. Therefore, the centralized remote control, monitoring and operation system which has the advantages of improving the working efficiency of the air compressor, prolonging the service life of equipment, reducing energy consumption, and being perfect in design function and convenient to operate is very important.

The purpose of the centralized control monitoring operation of the air compressors is to solve the problems of unstable operation of the air compressors, low operation and management efficiency of the air compressor rooms and waste of manpower and material resources. The information transmission, exchange and processing speed is accelerated, the monitoring operation ensures the normal operation of the equipment, and the failure rate of the equipment is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hot stove dust pelletizing system air compressor machine centralized monitoring device in ore deposit realizes the operation of air compressor machine centralized control guardianship.

In order to solve the technical problem, the utility model discloses take following scheme:

the utility model provides an air compressor centralized monitoring device of a submerged arc furnace dust removal system, which comprises a computer, an air compressor, a PLC control system and an analog signal detection and input module, wherein the PLC control system comprises a switching value input module and a switching value output module; the switching value input module is connected with an air compressor control button, and the air compressor control button comprises a local control button, a remote control button, a start button, a stop button, a loading button and an emergency stop button. The output end of the switching value output module is connected with the KA relay and then connected with the switching value input module. The analog signal detection and input module comprises an analog quantity input module, and an I/O port of the analog quantity input module is connected with a signal isolator.

Preferably, the air compressor is provided with 2-4 stages.

Preferably, the model of the switching value input module is SM321-1BL 00-OAAO.

Preferably, the model of the switching value output module is SM322-1BL00-0AA 0.

Preferably, the model of the analog quantity input module is SM331-7KF 00-OABO.

Drawings

FIG. 1 is a view of the structure of the present invention;

FIG. 2 is a schematic diagram of a switching value input module according to an embodiment;

FIG. 3 is a schematic diagram of a switching value output module according to an embodiment;

FIG. 4 is a schematic diagram of an exemplary analog signal detection and input module connection;

the system comprises a 101-PLC control system, a 102-analog signal detection and input module, a 1-switching value input module, a 2-switching value output module, a 3-analog value input module, a 4-air compressor control button, a 5-KA relay, a 6-remote signal and a 7-signal isolator.

Detailed Description

Example 1

As shown in fig. 1, the utility model provides a hot stove dust pelletizing system air compressor machine centralized monitoring device in ore deposit, including computer 103, air compressor machine, PLC control system 101 and analog signal detection and input module 102, PLC control system includes switching value input module 1 and switching value output module 2, PLC control system 101 and analog signal detection and input module 102 are connected to computer 103 through ethernet communication interface wiring, and computer 103 is connected to the air compressor machine through ethernet; the switching value input module 1 is connected with an air compressor control button 4, the air compressor control button 4 comprises an on-site control button, a remote control button, a start button, a stop button, a loading button and an emergency stop button, the air compressor control button realizes the switching of the on-site control and the remote control of the air compressor, and meanwhile, the on-site control of the air compressor is realized. The output end of the switching value output module 2 is connected with the KA relay and then connected with the switching value input module 1, and the KA relay realizes the remote control of the air compressor. The analog signal detection and input module comprises an analog input module 3, and a remote signal of the analog input module 3 is connected with a signal isolator 7.

Example 2

The number of air compressors in each air compressor station is different, 2-4 air compressors can be generally arranged on site to achieve the required dust removal effect, and the system of 2 air compressor devices is taken as an example for explanation in the embodiment.

According to the installation of the switching value input module 1 of the on-site air compressor, the switching value input module 1 can be a module with the model number of SM321-1BL00-OAAO, the module can be used for potential isolation of 32 digital signal inputs, and when the number of the air compressors exceeds 2, enough input ends can be provided for realizing control signal input.

As shown in fig. 2, pins 2-7 of the switching value input module 1 are connected to the air compressor control button 4, and respectively receive a No. 1 remote button signal, a No. 1 local button signal, a No. 1 start button signal, a No. 1 load button signal, a No. 1 stop button signal, and a No. 1 emergency stop button signal; the pins 22-27 are connected to the control button 4 of the air compressor and respectively receive a No. 2 remote button signal, a No. 2 local button signal, a No. 2 start button signal, a No. 2 loading button signal, a No. 2 stop button signal and a No. 2 emergency stop button signal;

pins

8, 9 and 12-16 receive the remote signal 6 and respectively input a No. 1 running signal, a No. 1 stopping signal, a No. 1 loading signal, a No. 1 unloading signal, a No. 1 power supply signal, a No. 1 overtemperature alarm signal and a No. 1 heat relay fault signal;

pins

28, 29 and 32-36 are connected to a remote signal 6, and are respectively connected with a No. 2 running signal, a No. 2 stopping signal, a No. 2 loading signal, a No. 2 unloading signal, a No. 2 power supply signal, a No. 2 overtemperature alarm signal and a No. 2 heat relay fault signal through switches; pins 17-19 and 37-39 of the air compressor are used as standby ends and are used as reserved point positions of the air compressor; the switching value input module 1 is driven by 24V direct current, and the

pins

20 and 40 are grounded.

The control buttons 4 of the air compressor comprise a local control button, a remote control button, a start button, a stop button, a loading button and an emergency stop button, and two control modes of local control and remote control are switched through the local control button and the remote control button. The operation state of the air compressor is controlled by manual keys during local control, and the operation state comprises a starting button, a loading button, a stopping button and an emergency stopping button. After the rotary knob of the field operation box is converted, the input signal of the switching value input module 1 is converted between local and remote, and during local control, the air compressor control buttons 4 such as a start button, a stop button and a loading button can realize local start-stop operation. When local control signals are obtained, remote control operation cannot be carried out, and only when the local remote rotary knob is rotated to a remote position, the remote operation can realize automatic linkage start and stop operation of the air compressor.

The remote operation is realized by signals input by a remote signal 6, an air compressor is controlled by an air compressor control button 4 in parallel connection with the remote signal 6, the signals input by the remote signal 6 comprise two types of control signals and alarm signals, the control signals comprise operation signals, stop signals, loading signals, unloading signals and power signals, the alarm signals comprise over-temperature alarm signals and heat relay fault signals, the control signals are sent by a far end and input through a switching value output module 2, the air compressor executes corresponding instructions, and the signals are switching value signals.

Example 3

As shown in fig. 3, the switching value output module 2 outputs a switching value signal, and the switching value output module 2 is preferably SM322-1BL00-0AA0, and the module can output 32 digital signals by potential isolation, and can also have enough input terminals to realize control signal input when a plurality of air compressors exist on site, for example, four air compressors are connected.

Because the turn-on capacity of the built-in relay of the module is small, the KA relay is connected with the field equipment, the module drives the KA relay, and the relay drives the corresponding field equipment. Pins 2-7 and 12-17 of the device respectively output a No. 1 running signal, a No. 1 stopping signal, a No. 1 loading signal, a No. 2 starting signal, a No. 2 stopping signal, a No. 2 loading signal, a No. 3 running signal, a No. 3 stopping signal, a No. 3 loading signal, a No. 4 running signal, a No. 4 stopping signal and a No. 4 loading signal through a KA relay; the other ports are used as standby ports and left empty;

pins

1, 11, 21 and 31 are connected to 24V dc, and

pins

10, 20, 30 and 40 are connected to ground.

Taking a system connected to two air compressors in embodiment 2 as an example, the switching value signals output by pins 2-4 and 5-7 are used to control the air compressor No. 1 and the air compressor No. 2, and pins 12-17 are not used; and the port reserved as the spare end is used as an air compressor reserved point. And the switching value output module 2 completes the input of the signal to the switching value input module 1 through the opening point of the relay.

Example 4

As shown in fig. 4, the analog signal detection and input module 102 monitors data reflecting the operation state of the air compressor in real time, and inputs the data such as the temperature, humidity, and air pressure of the operation environment of the air compressor in the form of analog quantity through an analog quantity input module 3, and then transmits the data to a remote computer for a worker to observe in real time, so as to operate in time according to the abnormal data of the environment. The model of the analog input module 3 is preferably SM331-7KF00-OABO, and analog data of a plurality of parameters representing the state of the air compressor is input simultaneously, so that the performance price ratio is high.

The temperature signal of the No. 1 air compressor is connected to the input end of a signal isolator 7, and the anode and the cathode of the output end of the signal isolator 7 are respectively connected to

pins

2 and 3 of an analog input module; the temperature signal of the No. 2 air compressor is connected to the input end of a signal isolator 7, and the positive pole and the negative pole of the output end of the signal isolator 7 are respectively connected to

pins

4 and 5 of the analog quantity input module; the No. 1 air compressor is connected with the input end of a signal isolator 7 in a current mode, and the positive pole and the negative pole of the output end 7 of the signal isolator are respectively connected to

pins

6 and 7 of an analog quantity input module; the No. 2 air compressor is connected with the input end of a signal isolator 7 in a current mode, and the positive pole and the negative pole of the output end of the signal isolator 7 are connected to

pins

8 and 9 of the analog quantity input module respectively; the analog input module pin 10 is a comp + analog input end, and the pin 11 is a mana analog input end and is grounded; the air pressure signal is connected to one input end 7 of the signal isolator, and the positive pole and the negative pole of the output end of the signal isolator 7 are respectively connected to

pins

12 and 13 of the analog quantity input module 3; the pin 1 of the analog input module is connected with 24V direct current, and the pin 20 is grounded.

The signal isolator 7 is used for weakening the interference on the signal in the transmission process and improving the accuracy of signal transmission. In the air compressor machine, temperature, electric current and pressure air pressure play the key role to the safe and reliable operation of guarantee system, and improper operational environment can influence the system, probably leads to the aircraft nose to damage, and the quick establishment of pressure guarantees the operating efficiency of air compressor machine. The real-time centralized monitoring of the operation state of the air compressor is beneficial to adjusting the operation state of the air compressor in time and keeping a good operation state.

Claims

1. The utility model provides a hot stove dust pelletizing system air compressor machine centralized monitoring device in ore deposit which characterized in that: the air compressor control system comprises a computer (103), an air compressor, a PLC control system (101) and an analog signal detection and input module (102), wherein the PLC control system comprises a switching value input module (1) and a switching value output module (2), the PLC control system (101) and the analog signal detection and input module (102) are connected to the computer (103) through an Ethernet communication interface in a wiring mode, and the computer (103) is connected to the air compressor through the Ethernet;

the switching value input module (1) is connected with an air compressor control button (4), and the air compressor control button (4) comprises a local control button, a remote control button, a start button, a stop button, a loading button and an emergency stop button;

the output end of the switching value output module (2) is connected with the KA relay and then connected with the switching value input module (1);

the analog signal detection and input module comprises an analog quantity input module (3), and an I/O port of the analog quantity input module (3) is connected with a signal isolator (7).

2. The centralized monitoring device for the air compressor of the submerged arc furnace dust removal system as claimed in claim 1, wherein: the number of the air compressors is 2-4.

3. The centralized monitoring device for the air compressor of the submerged arc furnace dust removal system as claimed in claim 1, wherein: the model of the switching value input module (1) is SM321-1BL 00-OAAO.

4. The centralized monitoring device for the air compressor of the submerged arc furnace dust removal system as claimed in claim 1, wherein: the model of the switching value output module (2) is SM322-1BL00-0AA 0.

5. The centralized monitoring device for the air compressor of the submerged arc furnace dust removal system as claimed in claim 1, wherein: the model of the analog input module (3) is SM331-7KF 00-OABO.