CN110205147A - Coke oven heating coal gas single tube intelligence control system - Google Patents
Coke oven heating coal gas single tube intelligence control system Download PDFInfo
- Publication number
- CN110205147A CN110205147A CN201910517622.4A CN201910517622A CN110205147A CN 110205147 A CN110205147 A CN 110205147A CN 201910517622 A CN201910517622 A CN 201910517622A CN 110205147 A CN110205147 A CN 110205147A
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- China
- Prior art keywords
- coal gas
- single tube
- temperature
- valve opening
- gas single
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B21/00—Heating of coke ovens with combustible gases
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B21/00—Heating of coke ovens with combustible gases
- C10B21/10—Regulating and controlling the combustion
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B41/00—Safety devices, e.g. signalling or controlling devices for use in the discharge of coke
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Coke Industry (AREA)
Abstract
The invention discloses a kind of coke oven heating coal gas single tube intelligence control systems, including coal gas single tube, regulating valve, executing agency, security isolation grid, control module, communication module, server and the data acquisition module being sequentially connected in series；Regulating valve is used to control the uninterrupted of coal gas single tube；Valve opening of the executing agency for regulating valve controls；Safety transmitting of the security isolation grid for two-way electric signal；Data acquisition module is for temperature collection data and upload server；Server calculates the valve opening value of regulating valve corresponding to coal gas single tube and issues control module by communication module；Received valve opening value is sent to executing agency by security isolation grid by control module.The present invention is automatically controlled by system completely, improves production efficiency, alleviates the workload of worker；The high/low temperature hole number that combustion chamber can be efficiently reduced improves the uniformity and stability of full furnace temperature；Can also effectively gas saving, reduce the discharge of nitrogen oxides.
Description
Technical field
Present invention relates particularly to a kind of coke oven heating coal gas single tube intelligence control systems.
Background technique
Coke oven is one kind using coal as raw material, produces coke by high-temperature retorting, and obtain coal gas and coal tar simultaneously, with
And the device of other chemical products (closing object etc. including ammonia, crude benzol, sulphur, thiocyanation), it is that structure is complicated and long-term continuous raw for one kind
The process equipment of production, production temperature are generally 950 ~ 1050 DEG C.
Coke oven heating is the important guarantee that coke oven works normally.The computer heating control of coke oven be one have multivariable, it is big when
Stagnant, nonlinear complex industrial process, control difficulty are larger.In previous research, mainly for coal gas main conduit flow into
Row control, and the control of coal gas single tube is usually all replaced orifice plate by producers manually and is adjusted, and replaces heavy workload manually,
Time-consuming, and control precision is low, and whole control effect is undesirable, causes coke oven transverse temperature uniformity poor.
Summary of the invention
The purpose of the present invention is to provide a kind of high reliablity, the degree of automation is good and the preferable coke oven heating of control effect
Coal gas single tube intelligence control system.
This coke oven heating coal gas single tube intelligence control system provided by the invention, including coal gas single tube, regulating valve, execution
Mechanism, security isolation grid, data acquisition module, communication module, server and control module；Coal gas single tube is the same combustion chamber
The general pipeline of interior all branch gas tubes that coke-stove gas or blast furnace gas are supplied to flue, the other end and coal gas of coal gas single tube
Supervisor is connected, and total gas volume of whole coal gas single tubes is controlled by coal gas main conduit flow；Regulating valve is mounted on coal gas supervisor and coal gas
The connecting portion of single tube, for controlling the uninterrupted of coal gas single tube；Executing agency is mounted in regulating valve, for regulating valve
Valve opening control, to control to adjust the size of valve flow；Security isolation grid are mounted between executing agency and control module,
Safety transmitting for two-way electric signal；Data acquisition module is used to acquire raw gas temperature and the burning of tedge or bridge tube
The flue temperature of room, and by data upload server；Server is according to corresponding to the temperature data of upload calculating coal gas single tube
Regulating valve valve opening value, and the numerical value is issued into control module by communication module；Control module is by received valve
Opening value is sent to executing agency by security isolation grid.
The raw gas temperature of the acquisition tedge or bridge tube, specially uses thermocouple measuring temperature.
The flue temperature of the acquisition combustion chamber, specially measures temperature using infrared temperature probe.
The valve opening value of server regulating valve according to corresponding to the temperature data of upload calculating coal gas single tube,
Specially valve opening value is calculated using following steps:
S1. for each combustion chamber, the flue temperature of the combustion chamber and the deviation of normal temperature is calculated and deviation variation rate is made
For the input of fuzzy control, for the increment of valve opening as output, basic ideas reduce valve opening when being high temperature, and when low temperature increases
Big valve opening；
S2. the raw gas temperature of tedge or bridge tube judges that carbonizing chamber is in the state before fire that falls or to fall based on the received
State after fire；State is fallen if fire, and one correction-compensation amount amount is then provided；
S3. correction-compensation amount is added in the calculated result of fuzzy control, the increment as this valve opening exports.
This coke oven heating coal gas single tube intelligence control system provided by the invention, is calculated automatically using intelligent control algorithm
Valve opening value, it is no longer necessary to it is artificial to carry out single tube adjusting, it is automatically controlled completely by system, improves production efficiency, alleviated
The workload of worker；Feedback regulation is carried out by the combustion chamber flue temperature in temperature-measuring module, combustion can be efficiently reduced
The high/low temperature hole number for burning room, improves the uniformity and stability of full furnace temperature；By tedge in temperature-measuring module or
The raw gas temperature of person's bridge tube measures, and can accurately obtain the operating condition of carbonizing chamber, and be adjusted in time according to operating condition, reduces fire and falls
Unnecessary gas volume supply afterwards, can effectively gas saving, reduce the discharge of nitrogen oxides.
Detailed description of the invention
Fig. 1 is system function module figure of the invention.
Fig. 2 is intelligent control logic chart of the invention.
Fig. 3 is the high/low temperature hole number effect contrast figure after present system comes into operation.
Fig. 4 is the coal gas fall effect contrast figure after present system comes into operation.
Fig. 5 is the nitrogen oxides fall effect contrast figure after present system comes into operation.
Specific embodiment
It is as shown in Figure 1 system function module figure of the invention: this coke oven heating coal gas single tube intelligence provided by the invention
It can control system, including coal gas single tube, regulating valve, executing agency, security isolation grid, data acquisition module, communication module, service
Device and control module；Coal gas single tube is all coals for supplying coke-stove gas or blast furnace gas in the same combustion chamber to flue
The other end of the general pipeline of gas branch pipe, coal gas single tube are connected with coal gas supervisor, and total gas volume of whole coal gas single tubes is responsible for by coal gas
Flow control；Regulating valve is mounted on the connecting portion of coal gas supervisor and coal gas single tube, for controlling the uninterrupted of coal gas single tube；
Executing agency is mounted in regulating valve, and the valve opening for regulating valve controls, to control to adjust the size of valve flow；Safety
Isolated gate is mounted between executing agency and control module, the safety transmitting for two-way electric signal；Data acquisition module is used for
Acquire the raw gas temperature of tedge or bridge tube and the flue temperature of combustion chamber, and by data upload server；Server
Pass through communication mould according to the valve opening value of regulating valve corresponding to the temperature data of upload calculating coal gas single tube, and by the numerical value
Block issues control module；Received valve opening value is sent to executing agency by security isolation grid by control module.
In the specific implementation, using thermocouple measurement and the raw gas temperature of tedge or bridge tube is acquired；Using infrared
Temperature transducer measures the flue temperature of temperature measurement and acquisition combustion chamber.
It is illustrated by taking the tamping coke furnace of 5.5 meters of 65 hole as an example, which has 65 combustion chambers and 66 carbonizing chambers, each combustion
Burning room has 32 flues, and according to the structure of twinflue, the branch gas tube below flue has been divided into two according to single double sequence
Column, each column 16, these branch gas tubes are then controlled the flow of two column branch gas tubes respectively by two coal gas single tubes, then the list of coke oven
Pipe sum shares 132.
Be illustrated in figure 2 intelligent control logic chart of the invention: server calculates coal gas list according to the temperature data of upload
The valve opening value of the corresponding regulating valve of pipe, specially calculates valve opening value using following steps:
S1. for each combustion chamber, the flue temperature of the combustion chamber and the deviation of normal temperature is calculated and deviation variation rate is made
For the input of fuzzy control, for the increment of valve opening as output, basic ideas reduce valve opening when being high temperature, and when low temperature increases
Big valve opening；
S2. the raw gas temperature of tedge or bridge tube judges that carbonizing chamber is in the state before fire that falls or to fall based on the received
State after fire；State is fallen if fire, and one correction-compensation amount amount is then provided；
S3. correction-compensation amount is added in the calculated result of fuzzy control, the increment as this valve opening exports.
It is illustrated in figure 3 the high/low temperature hole number effect contrast figure after present system comes into operation；It is illustrated in figure 4 the present invention
System come into operation after coal gas fall effect contrast figure；It is illustrated in figure 5 the decline of the nitrogen oxides after present system comes into operation
Magnitude effect comparison diagram.
It can be seen that high/low temperature hole number has decline, and fall is 30% or so after input coefficient of the present invention；Together
When, coal gas fall declines 20%-30% in 2%-3% or so, nitrogen oxides after system comes into operation；It can therefore be appreciated that of the invention
Method can not only adjust the valve opening of coal gas single tube automatically and reliably, and the control effect of the method for the present invention is more preferable.
Claims (4)
1. a kind of coke oven heating coal gas single tube intelligence control system, it is characterised in that including coal gas single tube, regulating valve, execute machine
Structure, security isolation grid, data acquisition module, communication module, server and control module；Coal gas single tube is in the same combustion chamber
The general pipeline of all branch gas tubes of coke-stove gas or blast furnace gas, the other end of coal gas single tube and coal gas master are supplied to flue
Pipe is connected, and total gas volume of whole coal gas single tubes is controlled by coal gas main conduit flow；Regulating valve is mounted on coal gas supervisor and coal gas list
The connecting portion of pipe, for controlling the uninterrupted of coal gas single tube；Executing agency is mounted in regulating valve, the valve for regulating valve
Door aperture control, to control to adjust the size of valve flow；Security isolation grid are mounted between executing agency and control module, are used
In the safety transmitting of two-way electric signal；Data acquisition module is used to acquire raw gas temperature and the combustion chamber of tedge or bridge tube
Flue temperature, and by data upload server；Server is according to corresponding to the temperature data of upload calculating coal gas single tube
The valve opening value of regulating valve, and the numerical value is issued into control module by communication module；Control module opens received valve
Angle value is sent to executing agency by security isolation grid.
2. coke oven heating coal gas single tube intelligence control system according to claim 1, it is characterised in that in the acquisition
The raw gas temperature of riser or bridge tube specially uses thermocouple measuring temperature.
3. coke oven heating coal gas single tube intelligence control system according to claim 1, it is characterised in that the acquisition combustion
The flue temperature of room is burnt, temperature is specially measured using infrared temperature probe.
4. coke oven heating coal gas single tube intelligence control system described according to claim 1 ~ one of 3, it is characterised in that described
The valve opening value of server regulating valve according to corresponding to the temperature data of upload calculating coal gas single tube, specially using as follows
Step calculates valve opening value:
S1. for each combustion chamber, the flue temperature of the combustion chamber and the deviation of normal temperature is calculated and deviation variation rate is made
For the input of fuzzy control, for the increment of valve opening as output, basic ideas reduce valve opening when being high temperature, and when low temperature increases
Big valve opening；
S2. the raw gas temperature of tedge or bridge tube judges that carbonizing chamber is in the state before fire that falls or to fall based on the received
State after fire；State is fallen if fire, and one correction-compensation amount amount is then provided；
S3. correction-compensation amount is added in the calculated result of fuzzy control, the increment as this valve opening exports.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910517622.4A CN110205147A (en) | 2019-06-14 | 2019-06-14 | Coke oven heating coal gas single tube intelligence control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910517622.4A CN110205147A (en) | 2019-06-14 | 2019-06-14 | Coke oven heating coal gas single tube intelligence control system |
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| CN110205147A true CN110205147A (en) | 2019-09-06 |
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| CN201910517622.4A Pending CN110205147A (en) | 2019-06-14 | 2019-06-14 | Coke oven heating coal gas single tube intelligence control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109135767A (en) * | 2018-10-09 | 2019-01-04 | 鞍钢股份有限公司 | A kind of coke oven compensating heating device and method |
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| US4692216A (en) * | 1983-10-24 | 1987-09-08 | United States Steel Corporation | Method for controlling heat input into a coke oven |
| CN1635050A (en) * | 2003-12-26 | 2005-07-06 | 中国科学院自动化研究所 | Automatic heating method for coke oven coking production |
| CN101070476A (en) * | 2007-06-22 | 2007-11-14 | 刘显南 | Coke-oven heating-temperature intelligent control system |
| CN101372622A (en) * | 2007-08-20 | 2009-02-25 | 尚文彬 | Automation control method for coke oven heating |
| CN102520747A (en) * | 2011-11-23 | 2012-06-27 | 中国三冶集团有限公司工业炉工程公司 | Coke oven temperature and pressure automatic monitoring oven control system |
| CN108398967A (en) * | 2018-03-09 | 2018-08-14 | 四川德胜集团钒钛有限公司 | A kind of gas pressure regulation and control system and its control method |
| CN109251751A (en) * | 2018-10-18 | 2019-01-22 | 南京沪友冶金机械制造有限公司 | A kind of coke oven fire falls monitoring system |
| CN109385285A (en) * | 2018-11-21 | 2019-02-26 | 南京沪友冶金机械制造有限公司 | A kind of coke oven heats optimization system automatically |
-
2019
- 2019-06-14 CN CN201910517622.4A patent/CN110205147A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4692216A (en) * | 1983-10-24 | 1987-09-08 | United States Steel Corporation | Method for controlling heat input into a coke oven |
| CN1635050A (en) * | 2003-12-26 | 2005-07-06 | 中国科学院自动化研究所 | Automatic heating method for coke oven coking production |
| CN101070476A (en) * | 2007-06-22 | 2007-11-14 | 刘显南 | Coke-oven heating-temperature intelligent control system |
| CN101372622A (en) * | 2007-08-20 | 2009-02-25 | 尚文彬 | Automation control method for coke oven heating |
| CN102520747A (en) * | 2011-11-23 | 2012-06-27 | 中国三冶集团有限公司工业炉工程公司 | Coke oven temperature and pressure automatic monitoring oven control system |
| CN108398967A (en) * | 2018-03-09 | 2018-08-14 | 四川德胜集团钒钛有限公司 | A kind of gas pressure regulation and control system and its control method |
| CN109251751A (en) * | 2018-10-18 | 2019-01-22 | 南京沪友冶金机械制造有限公司 | A kind of coke oven fire falls monitoring system |
| CN109385285A (en) * | 2018-11-21 | 2019-02-26 | 南京沪友冶金机械制造有限公司 | A kind of coke oven heats optimization system automatically |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109135767A (en) * | 2018-10-09 | 2019-01-04 | 鞍钢股份有限公司 | A kind of coke oven compensating heating device and method |
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Application publication date: 20190906 |
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