CN203065495U - Blast furnace gas combustion control device - Google Patents
Blast furnace gas combustion control device Download PDFInfo
- Publication number
- CN203065495U CN203065495U CN2013200798046U CN201320079804U CN203065495U CN 203065495 U CN203065495 U CN 203065495U CN 2013200798046 U CN2013200798046 U CN 2013200798046U CN 201320079804 U CN201320079804 U CN 201320079804U CN 203065495 U CN203065495 U CN 203065495U
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- China
- Prior art keywords
- blast furnace
- portfire
- control module
- furnace gas
- control device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The utility model provides a blast furnace gas combustion control device which comprises a pressure collection unit, a blast furnace ignition device and a PLC (Programmable Logic Controller) control module, wherein the pressure collection unit is used for collecting the pressure of blast furnace gas inside a blast furnace gas pipeline; an input end of the PLC control module is connected with the pressure collection unit and an output end of the PLC control module is connected with the blast furnace ignition device; and the blast furnace gas combustion control device is suitable for controlling the work of the blast furnace ignition device according to the data of the pressure collection unit. Through the structure, the blast furnace gas combustion control device has the advantages that firstly, the work and running states of a blast furnace gas combustion control demonstration device are monitored in real time by an upper computer; and secondly, the controller controls three combustion furnaces, and the number of the combustion furnaces is suitably chosen according to the size of the pressure inside the pipeline.
Description
Technical field
The utility model relates to industrial control field, relates in particular to a kind of blast furnace gas combustion control device.
Background technology
Blast furnace gas is the byproduct that produces in the iron manufacturing process, directly is discharged in the air if do not carry out relevant treatment, can cause bigger pollution to atmospheric environment.
Because the blast furnace gas point of ignition is not high, there is not the obstacle that catches fire, by the blast furnace gas firing system waste gas is carried out burn processing, the mixed gas that makes waste gas become carbonic acid gas and nitrogen is drained in the atmosphere again, reduces blast furnace gas to greatest extent to the pollution of atmosphere.
Need a kind of blast furnace gas combustion control device in the industry, handle the process of blast furnace gas with effective control.
The utility model content
The technical problems to be solved in the utility model provides a kind of blast furnace gas combustion control device, can effectively, environmental protection control and handle blast furnace gas.
According to an aspect of the present utility model, a kind of blast furnace gas combustion control device is provided, comprising:
Pressure acquisition unit is for the pressure of gathering the blast furnace gas in the blast furnace gas pipeline;
The blast furnace portfire; With
The PLC control module, its input terminus connects pressure acquisition unit, and output terminal connects the blast furnace portfire, is suitable for the work according to the Data Control blast furnace portfire of pressure acquisition unit.
Optionally, this device also comprises: temperature collecting cell, the temperature that is used for gathering the blast furnace gas in the blast furnace gas pipeline;
The input terminus of described PLC control module also is connected with temperature collecting cell, is suitable for the work according to the Data Control blast furnace portfire of pressure acquisition unit and temperature collecting cell.
Optionally, this device also comprises: upper computer, couple with the PLC control module, and be suitable for work, the running status of blast furnace gas combustion control device are monitored in real time.
Optionally, described upper computer adopts PC.
Optionally, the blast furnace portfire is many covers; Described PLC control module determines the ignition time of each blast furnace portfire according to the data of collecting unit collection.
Optionally, described blast furnace portfire is that 3 covers are installed on 3 blast furnaces respectively;
Pressure acquisition unit detects gas flow in the pipeline, the PLC control module is opened first blast furnace portfire when reaching 10mA after detected gas flow is changed through A/D, the PLC control module is opened second blast furnace portfire when reaching 15mA after gas flow continues to increase through the A/D conversion, and the PLC control module is opened the 3rd blast furnace portfire when reaching 20mA after gas flow continues to increase through the A/D conversion.
Optionally, described blast furnace portfire is that 3 covers are installed on 3 blast furnaces respectively;
The temperature and pressure signal of temperature collecting cell and pressure acquisition unit collection is converted into the current signal of 4～20mA;
The PLC control module was opened first blast furnace portfire when the detected current signal of PLC control module reached 10mA, the PLC control module is opened second blast furnace portfire when current signal reaches 15mA, and the PLC control module is opened the 3rd blast furnace portfire when current signal reaches 20mA.
The utility model adopts said structure, has the following advantages:
1, upper computer is monitored in real time to work, the running status of blast furnace gas burning control apparatus for demonstrating;
2, three roasting kilns of controller control, according to the size of manifold pressure, the number of appropriate selection roasting kiln.
Description of drawings
Fig. 1 is the blast furnace gas combustion control device structural representation that provides among embodiment of the utility model;
Fig. 2 is the input and output point distribution condition synoptic diagram of the PLC controller among Fig. 1.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is further described.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
According to embodiment of the utility model, provide a kind of blast furnace gas combustion control device, as shown in Figure 1.This blast furnace gas combustion control device comprises:
Wherein, PLC control module 1 is connected with upper computer 2, and the input terminus of PLC control module 1 is connected with temperature collecting cell 3 and pressure acquisition unit 4 respectively, and the output terminal of PLC control module 1 is connected with blast furnace portfire 5.
The working process of above-mentioned blast furnace gas combustion control device is as follows:
PLC control module control blast furnace portfire 5 (blast furnace gas point of ignition firearms), this blast furnace portfire 5 can adopt two kinds of control modes of automatic/hand.Automatic control mode is according to the size of blast furnace gas pressure, automatically control 1～3 cover blast furnace gas point of ignition firearm work, pressure acquisition unit 4 (pressure transmitter) detects gas flow in the pipeline, begin to light first blast furnace gas point of ignition firearm when reaching 10mA after detected gas flow is changed through A/D, open second blast furnace gas point of ignition firearm when after gas flow continues to increase through the A/D conversion, reaching 15mA, open the 3rd blast furnace gas point of ignition firearm when after gas flow continues to increase through the A/D conversion, reaching 20mA.When automatic control is malfunctioning, available manual control mode control 1～3 cover blast furnace gas point of ignition firearm work.
According to actual needs, can use temperature collecting unit 3 (temperature sensor) and pressure transmitter gas temperature in the pipeline and pressure signal are gathered.The temperature and pressure signal that temperature sensor and pressure transmitter collection are come is converted into the current signal of 4～20mA, selects for use 4 passages of analog input module FX2N-4A/D to receive and handle the current signal of 4～20mA simultaneously.
Fig. 2 is among the embodiment of the present utility model, and the input and output point distribution condition of PLC control module 1 (PLC controller) wherein, is distributed 48 points of FX2N-48R, shown in table 1, table 2.
Table 1 input point mode of connection
Table 2 output point mode of connection
Should be noted that and understand, under the situation that does not break away from the desired spirit and scope of the present utility model of accompanying Claim, can make various modifications and improvement to the utility model of foregoing detailed description.Therefore, the scope of claimed technical scheme is not subjected to the restriction of given any specific exemplary teachings.
Claims (7)
1. a blast furnace gas combustion control device is characterized in that, comprising:
Pressure acquisition unit is for the pressure of gathering the blast furnace gas in the blast furnace gas pipeline;
The blast furnace portfire; With
The PLC control module, its input terminus connects pressure acquisition unit, and output terminal connects the blast furnace portfire, is suitable for the work according to the Data Control blast furnace portfire of pressure acquisition unit.
2. blast furnace gas combustion control device according to claim 1 is characterized in that, also comprises: temperature collecting cell, the temperature that is used for gathering the blast furnace gas in the blast furnace gas pipeline;
The input terminus of described PLC control module also is connected with temperature collecting cell, is suitable for the work according to the Data Control blast furnace portfire of pressure acquisition unit and temperature collecting cell.
3. blast furnace gas combustion control device according to claim 1 and 2 is characterized in that, also comprises: upper computer, couple with the PLC control module, and be suitable for work, the running status of blast furnace gas combustion control device are monitored in real time.
4. blast furnace gas combustion control device according to claim 3 is characterized in that, described upper computer adopts PC.
5. blast furnace gas combustion control device according to claim 2 is characterized in that, the blast furnace portfire is many covers; Described PLC control module determines the ignition time of each blast furnace portfire according to the data of collecting unit collection.
6. blast furnace gas combustion control device according to claim 5 is characterized in that, described blast furnace portfire is that 3 covers are installed on 3 blast furnaces respectively;
Pressure acquisition unit detects gas flow in the pipeline, when reaching 10mA after detected gas flow is changed through A/D, the PLC control module is opened first blast furnace portfire, when after gas flow continues to increase through the A/D conversion, reaching 15mA, the PLC control module is opened second blast furnace portfire, when reaching 20mA after gas flow continues to increase through the A/D conversion, the PLC control module is opened the 3rd blast furnace portfire.
7. blast furnace gas combustion control device according to claim 5 is characterized in that, described blast furnace portfire is that 3 covers are installed on 3 blast furnaces respectively;
Temperature collecting cell and pressure acquisition unit are suitable for and will gather the current signal that the temperature and pressure signal that comes is converted into 4～20mA;
When the detected current signal of described PLC control module reaches 10mA, the PLC control module is opened first blast furnace portfire, when current signal reaches 15mA, the PLC control module is opened second blast furnace portfire, when current signal reached 20mA, the PLC control module was opened the 3rd blast furnace portfire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200798046U CN203065495U (en) | 2013-02-01 | 2013-02-01 | Blast furnace gas combustion control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200798046U CN203065495U (en) | 2013-02-01 | 2013-02-01 | Blast furnace gas combustion control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203065495U true CN203065495U (en) | 2013-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200798046U Expired - Fee Related CN203065495U (en) | 2013-02-01 | 2013-02-01 | Blast furnace gas combustion control device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203065495U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591594A (en) * | 2013-11-25 | 2014-02-19 | 安徽鑫龙电器股份有限公司 | Device and method for controlling discharge of kiln combustible waste gas |
| CN104199375A (en) * | 2014-08-26 | 2014-12-10 | 四川亿信信用评估有限公司 | Control system of oil removal device |
-
2013
- 2013-02-01 CN CN2013200798046U patent/CN203065495U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591594A (en) * | 2013-11-25 | 2014-02-19 | 安徽鑫龙电器股份有限公司 | Device and method for controlling discharge of kiln combustible waste gas |
| CN104199375A (en) * | 2014-08-26 | 2014-12-10 | 四川亿信信用评估有限公司 | Control system of oil removal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20140201 |