CN103591594A - Device and method for controlling discharge of kiln combustible waste gas - Google Patents
Device and method for controlling discharge of kiln combustible waste gas Download PDFInfo
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- CN103591594A CN103591594A CN201310602882.4A CN201310602882A CN103591594A CN 103591594 A CN103591594 A CN 103591594A CN 201310602882 A CN201310602882 A CN 201310602882A CN 103591594 A CN103591594 A CN 103591594A
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Abstract
The invention relates to a device and method for controlling discharge of kiln combustible waste gas. The device for controlling discharge of the kiln combustible waste gas comprises a collection unit, a kiln ignition device and a control module. The collection unit collects a signal of the kiln combustible waste gas inside a kiln combustible waste gas pipeline and inputs the signal to the control module; the control module sends a control instruction to control the kiln ignition device. The method for controlling discharge of the kiln combustible waste gas comprises the steps that 1, the collection unit collects detected gas flow; 2, the detected gas flow is converted into a current signal in an A/D mode; 3, the control module controls the starting number of the kiln ignition device according to the converted current signal; 4, when automatic control is out of order, the ignition work is carried out by controlling the starting number of the kiln ignition device manually. By means of the device and method for controlling discharge of the kiln combustible waste gas, the kiln combustible waste gas of secondary products produced in the chemical production process is discharged, and pollution to the atmospheric environment is reduced.
Description
Technical field
The present invention relates to industrial control field, relate to a kind of kiln combustible waste gas discharging control device and method.
Background technology
At present, China's boiler and kiln product are widely used in all trades and professions, but the structure of traditional burner and combustion method are unreasonable, burn and insufficiently cause energy waste large, kiln combustible exhaust gas is the byproduct producing in chemical process, wherein directly be discharged to the external world greatly, be directly discharged into air and can cause larger pollution to atmospheric environment.
Because kiln combustible exhaust gas ignition point is lower; there is not the obstacle that catches fire; to its processing of fully burning, the mist that makes waste gas become carbon dioxide and nitrogen is drained in atmosphere again, thereby reduce to greatest extent kiln combustible exhaust gas, the pollution of atmosphere is reached to the object of protection of the environment.
Summary of the invention
In order to overcome above the deficiencies in the prior art, the invention provides a kind of kiln combustible waste gas discharging control device and method, can effectively, environmental protection control processing kiln combustible exhaust gas.
Technical scheme of the present invention is:
A kind of kiln combustible waste gas discharging control device, this device comprises collecting unit, kiln igniter and control module, the signal that collecting unit gathers the kiln combustible exhaust gas in kiln combustible exhaust gas pipeline is input to control module, and control module is sent control command and controlled kiln igniter.
Described collecting unit is pressure acquisition unit.
Described collection is pressure acquisition unit and for gathering the temperature collecting cell of combustible exhaust gas temperature in kiln combustible exhaust gas pipeline.
Described kiln igniter is more than 2 covers, respectively corresponding being arranged on the cellar for storing things stove of equal number.
This device also comprises the host computer of real time monitoring apparatus working, and host computer and control module couple.
Described kiln combustible waste gas discharging control method, its step comprises:
Gas flow in the detection that step 1, collecting unit gather;
Step 2, the gas flow detecting are converted to current signal by A/D;
Step 3, control module control according to the current signal after conversion the quantity that kiln igniter is opened.
Further comprising the steps of: when automatic control is malfunctioning, the quantity that manual control mode kiln igniter is opened is carried out ignition operation.
The data that described step 2 is carried out collecting unit collection are converted to the current signal of 4-20mA.
The present invention has following good effect: 1, host computer is monitored in real time to work, the running status of kiln combustible exhaust gas burning control apparatus for demonstrating; 2, controller is controlled three combustion furnaces, according to the size of manifold pressure, and the number of suitable selective combustion stove.
Accompanying drawing explanation
Fig. 1 is structure and the fundamental diagram of device.
The specific embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is as the effect of the mutual alignment between the shape of each related member, structure, each several part and annexation, each several part and operation principle, manufacturing process and operation using method etc., be described in further detail, to help those skilled in the art to have more complete, accurate and deep understanding to inventive concept of the present invention, technical scheme.
This device comprises pressure acquisition unit, for gathering the pressure of the kiln combustible exhaust gas in kiln combustible exhaust gas pipeline; Kiln igniter; PLC(Programmable Logic Controller, programmable logic controller (PLC)) control module, its input Bonding pressure collecting unit, output connects kiln igniter, is suitable for according to the work of the Data Control kiln igniter of pressure acquisition unit.
This device also comprises temperature collecting cell, for gathering the temperature of the kiln combustible exhaust gas in kiln combustible exhaust gas pipeline; The input of PLC control module is connected with temperature collecting cell, is suitable for according to the work of the Data Control kiln igniter of pressure acquisition unit and temperature collecting cell.
This device also comprises host computer, PLC control module adopts Ethernet to be connected with host computer, PLC analog input module gathers the current signal that kiln gas meter conducts, by output module, control igniter, be suitable for the work of kiln combustible exhaust gas combustion control device, running status to monitor in real time.Wherein host computer adopts PC.
Kiln igniter is many covers; Described PLC control module determines the duration of ignition of each kiln igniter according to the data of collecting unit collection.In this specific embodiment, kiln igniter is that 3 covers are installed on respectively 3 kilns;
PLC control module is controlled kiln igniter (kiln combustible exhaust gas burning point firearm), and this kiln igniter can adopt two kinds of control modes of automatic/hand.Automatic control mode is according to the size of kiln combustible exhaust gas pressure, automatically control 1～3 cover kiln combustible exhaust gas burning point firearm work, pressure acquisition unit 4(pressure sensor) detect gas flow in pipeline, the gas flow detecting starts to light first kiln combustible exhaust gas burning point firearm while reaching 10mA after A/D conversion, when reaching 15mA after A/D conversion, gas flow continuation increase opens second kiln combustible exhaust gas burning point firearm, when reaching 20mA after A/D conversion, gas flow continuation increase opens the 3rd kiln combustible exhaust gas burning point firearm.When automatic control is malfunctioning, the fault message of the PLC output fault-signal of naming a person for a particular job, the audible-visual annunciator in control room will be reported to the police, and staff can beat as manual mode by change-over switch on console, with manual control mode, control 1～3 cover kiln combustible exhaust gas burning point firearm work.
Embodiment mono-:
Pressure acquisition unit detects gas flow in pipeline, when the gas flow detecting reaches 10mA after A/D conversion, PLC control module is opened first kiln igniter, when gas flow continuation increase reaches 15mA after A/D conversion, PLC control module is opened second kiln igniter, and when gas flow continuation increase reaches 20mA after A/D changes, PLC control module is opened the 3rd kiln igniter.
Embodiment bis-:
According to actual needs, can serviceability temperature collecting unit (temperature sensor) and pressure sensor gas in pipelines temperature and pressure signal is gathered.The temperature and pressure signal that temperature sensor and pressure sensor collection are come is converted into the current signal of 4～20mA, selects 4 passages of analog input module S7-300AI module to receive simultaneously and process the current signal of 4～20mA.
The current signal that PLC control module while detected temperatures and pressure are passed back; Temperature signal priority is higher than pressure signal, and when in pipeline, temperature feedback is lower than 8mA, no matter pressure feedback is how many, all opens 3 igniters; When temperature feedback is during in 8～16mA, an igniter of every grade of increase on example one basis; When temperature feedback is during higher than 16mA, adopt example one mode to light a fire.This mode can the current waste gas burning situation of more effective detection, more thoroughly purifies kiln waste gas.
The input and output point distribution condition of PLC control module (PLC controller), wherein the input/output module of ，Dui Siemens S7-300 is distributed, as shown in table 1, table 2.
Table 1 input point mode of connection
Table 2 output point mode of connection
Claims (8)
1. a kiln combustible waste gas discharging control device, it is characterized in that: this device comprises collecting unit, kiln igniter and control module, the signal that collecting unit gathers the kiln combustible exhaust gas in kiln combustible exhaust gas pipeline is input to control module, and control module is sent control command and controlled kiln igniter.
2. kiln combustible waste gas discharging control device according to claim 1, is characterized in that: described collecting unit is pressure acquisition unit.
3. kiln combustible waste gas discharging control device according to claim 1, is characterized in that: described collection is pressure acquisition unit and for gathering the temperature collecting cell of combustible exhaust gas temperature in kiln combustible exhaust gas pipeline.
4. kiln combustible waste gas discharging control device according to claim 1, is characterized in that: described kiln igniter is arranged on the stove of cellar for storing things, and kiln igniter quantity is more than 2 covers.
5. kiln combustible waste gas discharging control device according to claim 1, is characterized in that: this device also comprises the host computer of real time monitoring apparatus working, and host computer and control module couple.
6. according to the kiln combustible waste gas discharging control method described in claim 1-5 any one, its step comprises:
Gas flow in the detection that step 1, collecting unit gather;
Step 2, the gas flow detecting are converted to current signal by A/D;
Step 3, control module control according to the current signal after conversion the quantity that kiln igniter is opened.
7. kiln combustible waste gas discharging control method according to claim 6, is characterized in that: further comprising the steps of: when automatic control is malfunctioning, the quantity that manual control mode kiln igniter is opened is carried out ignition operation.
8. kiln combustible waste gas discharging control method according to claim 6, is characterized in that: the data that described step 2 is carried out collecting unit collection are converted to the current signal of 4-20mA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310602882.4A CN103591594A (en) | 2013-11-25 | 2013-11-25 | Device and method for controlling discharge of kiln combustible waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310602882.4A CN103591594A (en) | 2013-11-25 | 2013-11-25 | Device and method for controlling discharge of kiln combustible waste gas |
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| CN103591594A true CN103591594A (en) | 2014-02-19 |
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| CN201310602882.4A Pending CN103591594A (en) | 2013-11-25 | 2013-11-25 | Device and method for controlling discharge of kiln combustible waste gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188339A (en) * | 2021-05-28 | 2021-07-30 | 赣州科帕机电自动化有限公司 | Kiln operation equipment control system |
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| JP2001248821A (en) * | 2000-03-08 | 2001-09-14 | Babcock Hitachi Kk | Equipment for waste gas treatment in semiconductor production |
| CN102537983A (en) * | 2012-01-10 | 2012-07-04 | 中国寰球工程公司 | Automatic torch ignition system and automatic torch ignition method |
| CN202647791U (en) * | 2012-06-29 | 2013-01-02 | 陈华 | Exhaust gas ignition device for oil well |
| CN203065495U (en) * | 2013-02-01 | 2013-07-17 | 安徽工程大学 | Blast furnace gas combustion control device |
| CN103335319A (en) * | 2013-07-05 | 2013-10-02 | 上海轻叶工程科技有限公司 | FCS torch monitoring and management system |
| CN203628680U (en) * | 2013-11-25 | 2014-06-04 | 安徽鑫龙电器股份有限公司 | Combustible waste gas exhaust control device of kiln |
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2013
- 2013-11-25 CN CN201310602882.4A patent/CN103591594A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001248821A (en) * | 2000-03-08 | 2001-09-14 | Babcock Hitachi Kk | Equipment for waste gas treatment in semiconductor production |
| CN102537983A (en) * | 2012-01-10 | 2012-07-04 | 中国寰球工程公司 | Automatic torch ignition system and automatic torch ignition method |
| CN202647791U (en) * | 2012-06-29 | 2013-01-02 | 陈华 | Exhaust gas ignition device for oil well |
| CN203065495U (en) * | 2013-02-01 | 2013-07-17 | 安徽工程大学 | Blast furnace gas combustion control device |
| CN103335319A (en) * | 2013-07-05 | 2013-10-02 | 上海轻叶工程科技有限公司 | FCS torch monitoring and management system |
| CN203628680U (en) * | 2013-11-25 | 2014-06-04 | 安徽鑫龙电器股份有限公司 | Combustible waste gas exhaust control device of kiln |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188339A (en) * | 2021-05-28 | 2021-07-30 | 赣州科帕机电自动化有限公司 | Kiln operation equipment control system |
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Application publication date: 20140219 |