Control device of sinter plate dust remover

Abstract

The utility model relates to a sinter plate dust remover control device which comprises a control unit, the control unit comprises a digital quantity output module, a relay set and a relay, the digital quantity output module is connected with a coil of the relay set through a port, and a normally open contact of the relay is connected with one end of a first normally open contact of the relay set. A normally closed contact of the relay is connected with one end of a normally open contact II of the relay group, and the other end of the normally open contact I of the relay group and the other end of the normally open contact II of the relay group are respectively connected with the pulse electromagnetic valve. The utility model has the advantages that the normally open contact of the relay KB is respectively connected with one end of the normally open contact I of the relay group, and the normally closed contact of the relay KB is connected with one end of the normally open contact II of the relay group; and the other end of the normally open contact I of the relay group and the other end of the normally open contact II of the relay group are respectively connected with the pulse electromagnetic valve, so that output ports of the digital quantity output module can be saved, and the implementation is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of air dust removal, in particular to a plastic sintering plate dust collector control device. Background Art

[0002] At present, most of the domestic air dust removal technology industry uses bag-type dust collectors or plastic-sintered plate dust collectors for dust removal. Bag-type dust collectors are easy to break, the filtration accuracy is not high, and the dust collector is large in size. Plastic-sintered plate dust collectors use unique wave-type plastic-sintered plate filter elements to replace traditional bags. Since the plastic-sintered plate is a rigid structure, it will not deform and there is no frame wear, so the plastic-sintered plate dust collector has been widely used, but the workshop has the following problems during use:

[0003] 1. The control device uses a pulse generator to drive the pulse solenoid valve, and there is no detection and monitoring display means. Maintenance and operating personnel cannot control the internal status of the dust collector in real time;

[0004] 2. When the dust collector malfunctions, the alarm cannot be given in time, resulting in the exhaust gas emission index exceeding the standard, leading to shutdown and production stoppage. Summary of the invention

[0005] The utility model aims to provide a control device for a plastic sintered plate dust collector, which can monitor the working state of the dust collector in real time, control the internal state of the dust collector in real time, and provide alarm information in time for abnormal situations.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] A plastic-sintered plate dust collector control device includes a plastic-sintered plate dust collector, which includes a plurality of dust removal chambers arranged side by side, each dust removal chamber is provided with an equal number of pulse solenoid valves on the top, the pulse solenoid valves are connected to a compressed air storage tank, the compressed air storage tank is used to store compressed air, and also includes a control unit, the control unit includes a digital output module, a relay group, and a relay, the digital output module is connected to the coil of the relay group through a port, the normally open contact of the relay is connected to one end of the normally open contact 1 of the relay group, the normally closed contact of the relay is connected to one end of the normally open contact 2 of the relay group, the other end of the normally open contact 1 of the relay group and the other end of the normally open contact 2 of the relay group are respectively connected to the pulse solenoid valve.

[0008] The plastic-sintered board dust collector also includes a differential pressure transmitter and a temperature sensor. The differential pressure transmitter is used to detect the differential pressure between the air inlet and the air outlet of the plastic-sintered board dust collector. The temperature sensor is used to detect the body temperature of the plastic-sintered board dust collector. The control unit also includes an analog input module. The analog input module is connected to the digital output module through a port. The analog input module is respectively connected to the differential pressure transmitter and the temperature sensor through ports.

[0009] The control unit also includes an HMI human-machine interaction screen, a power module, and a CPU module. The HMI human-machine interaction screen is connected to the CPU module. The power module, CPU module, digital output module, and analog input module are connected through ports. The power module is used to provide working power.

[0010] A relay group includes several relays.

[0011] The control unit is PLC.

[0012] The control unit is arranged in an operation box, and the operation box is fixedly mounted on the plastic sintering plate dust collector.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The differential pressure transmitter and temperature sensor are connected to the control unit, which is convenient for on-site maintenance personnel to check the temperature and differential pressure status through the HMI human-machine interactive screen at any time. The operation is simple, the query is convenient, and the maintenance is time-saving and labor-saving;

[0015] 2. The normally open contact of relay KB is connected to one end of the normally open contact 1 of the relay group, the normally closed contact of relay KB is connected to one end of the normally open contact 2 of the relay group, and the other end of the normally open contact 1 of the relay group and the other end of the normally open contact 2 of the relay group are connected to the pulse solenoid valve respectively, which can save the number of relays and the output port of the digital output module, with low transformation cost and easy implementation;

[0016] 3. The CPU module is connected to the master station PLC through the communication module to realize data transmission between the CPU module and the master station PLC, which is convenient for unified supervision. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the plastic sintered plate dust collector.

[0018] Figure 2 This is a schematic diagram of the wiring principle of the digital output module.

[0019] Figure 3 This is a schematic diagram of the wiring principle of the analog input module.

[0020] Figure 4 This is a schematic diagram of the relay wiring principle.

[0021] In the figure: 1- pulse solenoid valve 2- differential pressure transmitter 3- temperature sensor. DETAILED DESCRIPTION

[0022] The present invention is described in detail below in conjunction with the accompanying drawings of the specification, but it should be noted that the implementation of the present invention is not limited to the following embodiments.

[0023] The following examples are implemented based on the technical solution of the utility model, and provide detailed implementation methods and specific operation processes, but the protection scope of the utility model is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.

[0024] [Example 1]

[0025] The workshop renovated the control device of the plastic sintered board dust collector, removed the original pulse generator, and used the control unit to drive the pulse solenoid valve 1. The original differential pressure transmitter 2 and temperature sensor 3 were local display instruments. The differential pressure transmitter 2 was used to detect the differential pressure between the air inlet and outlet of the plastic sintered board dust collector, and the temperature sensor 3 was used to detect the body temperature of the plastic sintered board dust collector. After the renovation, the original differential pressure transmitter 2 and temperature sensor 3 were connected to the control unit. Figures 1 to 4 The plastic sintering board dust collector includes four dust removal chambers arranged side by side, a differential pressure transmitter 2, a temperature sensor 3, and a control unit. The control unit is arranged in an operation box, and the operation box is fixedly installed on the plastic sintering board dust collector. Five pulse solenoid valves 1 are arranged on the top of each dust removal chamber. The pulse solenoid valve 1 is connected to the compressed air storage tank, and the compressed air storage tank is used to store compressed air; the control unit includes a communication module, a digital output module, an analog input module, an HMI human-computer interaction screen, a power module, a CPU module, relays KB1~KB10, and relay KB. The HMI human-computer interaction screen is connected to the CPU module, the power module, the CPU module, the digital output module, the analog input module, and the communication module are connected through the port, and the communication module is connected to the master station PLC through the port. If the monitoring data of the differential pressure transmitter 2 and the temperature sensor 3 exceed the set value, the HMI human-computer interaction screen is connected to the CPU module, and the power module, the CPU module, the digital output module, the analog input module, and the communication module are connected through the port. The interactive screen prompts the alarm information and transmits the alarm information to the main station PLC to promptly notify the maintenance personnel of the fault repair. The power module is used to provide working power. The analog input module is connected to the differential pressure transmitter 2 and the temperature sensor 3 through the port respectively. The digital output module is connected to the coils of relays KB1~KB10 through the port. The normally open contact of relay KB is connected to one end of the normally open contact 1 of relay KB1~KB10, and the other end of the normally open contact 1 of relay KB1~KB10 is connected to 11# pulse solenoid valve 1~20# pulse solenoid valve 1 respectively. The normally closed contact of relay KB is connected to one end of the normally open contact 2 of relay KB1~KB10, and the other end of the normally open contact 2 of relay KB1~KB10 is connected to 1# pulse solenoid valve 1~10# pulse solenoid valve 1 respectively; the control unit is Siemens 200PRO series PLC.

[0026] Working process:

[0027] The data information of the temperature sensor and differential pressure transmitter of the plastic-fired board dust collector is transmitted to the PLC of the master station regeneration unit. When the inlet temperature of the plastic-fired board dust collector is higher than the set protection value, the regeneration unit switches the operation mode, and the system enters water operation or shutdown state to prevent the plastic-fired board dust collector from overheating and deformation. At this time, the operation and process personnel check the cause of the temperature rise; when the pressure difference before and after the plastic-fired board dust collector is higher than 2500Pa or lower than 260pa, the regeneration unit gradually enters the shutdown state, and the equipment and process personnel organize the cleaning and inspection of the plastic-fired board surface, analyze the cause of iron powder hanging on the wall and eliminate the problem, to avoid iron powder hanging on the wall or leakage.

[0028] The utility model connects the differential pressure transmitter and the temperature sensor with the control unit, so that the on-site maintenance personnel can check the temperature and differential pressure status at any time through the HMI human-machine interaction screen, the operation is simple, the query is convenient, and the maintenance is time-saving and labor-saving; the normally open contact of the relay KB is respectively connected with one end of the normally open contact 1 of the relay group, the normally closed contact of the relay KB is connected with one end of the normally open contact 2 of the relay group, the other end of the normally open contact 1 of the relay group and the other end of the normally open contact 2 of the relay group are respectively connected with the pulse solenoid valve, which can save the number of relays and the output port of the digital output module, the transformation cost is low, and it is easy to implement; the CPU module is connected with the main station PLC through the communication module, so as to realize data transmission between the main station PLC and the main station PLC, and it is convenient for unified supervision.

Claims

1. A plastic sintered plate dust collector control device, comprising a plastic sintered plate dust collector, the plastic sintered plate dust collector comprises a plurality of dust removal chambers arranged side by side, each dust removal chamber is provided with the same number of pulse solenoid valves on the top, the pulse solenoid valves are connected to a compressed air storage tank, the compressed air storage tank is used to store compressed air, characterized in that: It also includes a control unit, which includes a digital output module, a relay group, and a relay. The digital output module is connected to the coil of the relay group through a port, the normally open contact of the relay is connected to one end of the normally open contact 1 of the relay group, the normally closed contact of the relay is connected to one end of the normally open contact 2 of the relay group, and the other end of the normally open contact 1 of the relay group and the other end of the normally open contact 2 of the relay group are respectively connected to the pulse solenoid valve.

2. A sintered board dust collector control device according to claim 1, characterized in that: The plastic-sintered board dust collector also includes a differential pressure transmitter and a temperature sensor. The differential pressure transmitter is used to detect the differential pressure between the air inlet and the air outlet of the plastic-sintered board dust collector. The temperature sensor is used to detect the body temperature of the plastic-sintered board dust collector. The control unit also includes an analog input module. The analog input module is connected to the digital output module through a port. The analog input module is respectively connected to the differential pressure transmitter and the temperature sensor through ports.

3. A sintered board dust collector control device according to claim 2, characterized in that: The control unit also includes an HMI human-machine interaction screen, a power module, and a CPU module. The HMI human-machine interaction screen is connected to the CPU module. The power module, the CPU module, the digital output module, and the analog input module are connected through ports. The power module is used to provide working power.

4. A sintered board dust collector control device according to claim 1, characterized in that: The relay group includes a plurality of relays.

5. A sintered board dust collector control device according to claim 2, characterized in that: The control unit is a PLC.

6. A sintered board dust collector control device according to claim 5, characterized in that: The control unit is arranged in an operation box, and the operation box is fixedly mounted on the plastic sintering plate dust collector.

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