CN103073203B - Sleeve kiln energy consumption monitoring system and control method thereof - Google Patents
Sleeve kiln energy consumption monitoring system and control method thereof Download PDFInfo
- Publication number
- CN103073203B CN103073203B CN201210515283.4A CN201210515283A CN103073203B CN 103073203 B CN103073203 B CN 103073203B CN 201210515283 A CN201210515283 A CN 201210515283A CN 103073203 B CN103073203 B CN 103073203B
- Authority
- CN
- China
- Prior art keywords
- coal
- gas
- mixed
- energy consumption
- value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
Abstract
The invention discloses a novel real-time sleeve kiln energy consumption monitoring system and a control method thereof. The energy consumption can be furthest reduced on the premise of guaranteeing the quality of a product calcined in a limekiln. The sleeve kiln energy consumption monitoring system comprises a PLC control system and a host computer connected with the PLC control system, and also comprises a gas caloricity value meter, an ultrasonic flow meter and a fan respectively connected with the PLC control system. The invention also provides the control method of the sleeve kiln energy consumption monitoring system. The method comprises the following steps: collecting parameters through the PLC system, judging the kind of the gas through the parameters, calculating to obtain various required values, and displaying the result obtained through calculating on the host computer.
Description
Technical field
The invention belongs to automatic control technology field, especially relate to a kind of energy consumption monitoring system that is applied to sleeve lime kiln.
Background technology
Sleeve lime kiln is a kind of of limekiln, has hear rate low, and activity of lime is high, simple in structure, the feature that fuel tolerance is strong, compares with traditional limekiln, and lime is calcined in annular space, and air-flow is more evenly distributed, in kiln, without cooling device, failure rate is low, is easy to safeguard.Be applicable to steel industry and utilize coke-stove gas and calcium carbide, chemical industry to utilize the technology such as calcium carbide stove exhaust, produce high-quality lime.The production process of sleeve lime kiln has been controlled by automation, improves lime quality and energy-conservation object, thereby calcine out high-quality active lime to reach.Sleeve lime kiln mainly carrys out lime burning by gas combustion release heat, sleeve lime kiln use gaseous fuel be coal gas of converter or blast furnace, coke oven mixed gas.In the past lime burning be mainly according to original designing unit to theoretical process parameters range and the on-the-spot practical experience of worker in conjunction with adjusting each technological parameter, produce qualified quick lime, but in this process, lack the real-time monitoring of energy consumption, while only having monthly clearing, could understand energy consumption, make energy consumption fluctuated, and wasted a large amount of energy.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide the control method of a kind of novel real-time sleeve kiln energy consumption monitoring system and this system, guaranteeing, under the prerequisite of limekiln calcination product quality, farthest to reduce energy consumption.
In order to reach above object, the invention provides following technical scheme:
For an energy consumption monitoring system for sleeve kiln, comprise PLC control system and the host computer being connected with PLC control system, also comprise the gas calorific value apparatus, ultrasonic flow instrument and the blower fan that are connected with PLC control system respectively.
A kind of control method of the energy consumption monitoring system for sleeve kiln, comprise the steps: the step of PLC systematic collection parameter, by parameter, judge the step of kinds of gas, calculate the step of required various numerical value, on host computer, show the step of result of calculation.
As a kind of technical scheme of the present invention, the step of described PLC systematic collection parameter is: gas calorific value apparatus, ultrasonic flowmeter and each blower fan, be sent to PLC control system by calorific value, Gas Flow value and each blower fan current value respectively.
As a kind of technical scheme of the present invention, the described step of judging kinds of gas by parameter is: when calorific value is less than mixedly while turning coal judgment value, what represent to use is to turn coal, and when calorific value is greater than, mixed what represent while turning coal judgment value to use is mixed coal.
As a kind of technical scheme of the present invention, described PLC system comprises and turns coal timer and mixed coal timer, the step of the various parameters that described calculating is required is specially: when use turns coal, turn coal timer and start timing, turn coal power consumption and turn coal flow and start accumulation, the zero clearing of mixed coal timer reset simultaneously; When using mixed coal, mixed coal timer starts timing, and mixed coal power consumption, mixed coal flow start accumulation, turn coal timer reset zero clearing simultaneously.
As a preferred embodiment of the present invention, described mixed to turn coal judgment value be 2000kcal/m
3.
Owing to having adopted above-mentioned technical scheme, the present invention can record the numerical value such as gas consumption and power consumption, and can draw out history graphs according to these numerical value, thereby determine the technological parameters such as the grey coal gas use amount of ton and blower fan aperture, so that selection optimal processing parameter, and curing process model, improved production efficiency greatly, reduce energy consumption, and established solid foundation for further improving in the future technological process.
Accompanying drawing explanation
Fig. 1 is the energy consumption monitoring system structural representation the invention provides for sleeve kiln.
Fig. 2 is the control method flow chart for the energy consumption monitoring system of sleeve kiln.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand the following specific embodiment and only for the present invention is described, is not used in and limits the scope of the invention.It should be noted that, word 'fornt', 'back', " left side ", " right side ", "up" and "down" that use is described below refer to the direction in accompanying drawing, and word " interior " and " outward " refer to respectively the direction towards or away from specific features geometric center.
Embodiment mono-:
Because the main consumption energy of sleeve kiln lime burning is electric energy and coal gas, and coal gas is divided into coal gas of converter (be designated hereinafter simply as and turn coal) and mixed gas (is designated hereinafter simply as mixed coal in actual applications, mixed coal is comprised of blast furnace gas and coke-stove gas), in order to distinguish different kindss of gas when calculating the consumption energy, therefore also need to obtain calorific value parameter, can determine that needing the parameter gathering is gas flow, consume electric energy and calorific value, calorific value and Gas Flow value can obtain by gas calorific value apparatus and ultrasonic flowmeter respectively, wherein power consumption is mainly comprised of several blower fan power consumptions, therefore need to be by the current signal access PLC control system of blower fan.Build thus the energy consumption monitoring system for sleeve kiln as shown in Figure 1, comprise the PLC control system being connected with gas calorific value apparatus, ultrasonic flow instrument and blower fan and the host computer being connected with PLC control system, on described host computer, configuration software is installed.
While operating for the energy consumption monitoring system of sleeve kiln, comprise the steps: first by PLC systematic collection parameter, then by above-mentioned parameter, judge kinds of gas, timer timing is also calculated required various numerical value, parameter is shown on host computer, control method flow process as shown in Figure 2 again.
Specifically, PLC system obtains calorific value, coal gas instantaneous delivery value and each blower fan current value by gas calorific value apparatus, ultrasonic flowmeter and each blower fan, the process of judging kinds of gas by above-mentioned parameter is mixed while turning coal judgment value when calorific value is less than for judgement, what represent to use is to turn coal, and when calorific value is greater than, mixed what represent while turning coal judgment value to use is mixed coal;
Mixed turn coal judgment value and set based on experience value, generally can be set as 2000kcal/m
3.
In in PLC, be provided with and turn coal timer t1 and mixed coal timer t2, timer timing the step of calculating required various parameters are specially: when use turns coal, turn coal timer t1 and start timing, turn coal power consumption and turn coal flow and start accumulation, simultaneously mixed coal timer t2 reset zero clearing.
The described coal accumulated value L1 (m that turns
3(z1 representative turns coal instantaneous delivery m to)=∫ dz1*dt
3/ h), turn coal power consumption W1 (kwh)=w1+w2+...+wN (w1, w2...wN represent different blower fan power consumptions, and N is positive integer).When using mixed coal, mixed coal timer t2 starts timing, and mixed coal power consumption and mixed coal flow start accumulation, turn coal timer t1 reset zero clearing simultaneously.
Described mixed coal accumulated value L2 (m
3(z2 represents mixed coal instantaneous delivery m to)=∫ dz2*dt
3/ h), mixed coal power consumption W2 (kwh)=w1+w2+...+wN (w1, w2...wN represent different blower fan power consumptions, and N is positive integer).
Each blower fan power consumption wN=Pt=∫ dPdt=∫
u λ dIdt, wherein U and λ are constant, wN measurement unit is kwh.
Every day, output c preset in PLC, the output that should obtain respectively when using the output that should obtain respectively while turning coal as the energy for c1 and using mixed coal as the energy for c2(output unit be ton).
By configuration software by above-mentioned accumulative total turn coal accumulated value L1, turn coal power consumption accumulated value W1, mixed coal accumulated value L1, mixed coal power consumption accumulated value W1 shows at main menu.Also need on host computer, show in addition every kilogram of lime hear rate g, day output c, and use output c1 and the c2 that should obtain respectively while turning coal and mixed coal as the energy.Every kilogram of lime hear rate g presets in PLC.In addition, can also will above-mentionedly turn coal accumulated value L1, turn coal power consumption accumulated value W1 divided by corresponding output c1, draw to use to turn coal ton ash coal gas use amount m1 and the grey power consumption a1 of ton; Mixed coal accumulated value L2, mixed coal power consumption accumulated value W2, divided by corresponding output c2, draw and use mixed coal ton ash coal gas use amount m2 and the grey power consumption a2 of ton, and these numerical value are presented on host computer.
Every kilogram of lime hear rate g=gas flow * calorific value of gas/output/1000*Y, during calculating, every kilogram of lime hear rate unit is kcal/kg, the unit of gas flow is m
3/ h, calorific value of gas unit is kcal/m
3output unit is t, Y is proportionality coefficient, be greater than 0 and be less than 1, Y=lime absorbs heat/gas heating amount, the gas flow of collecting by PLC and calorific value of gas and every kilogram of pre-set lime hear rate g can calculate Y, and Y more illustrates that energy consumption transformation efficiency is high, so native system is collected and computing obtains parameter and numerical value can provide reference for later stage adjusting process parameter.
Various parameters and the numerical value of above-mentioned demonstration count historical record curve map by configuration software, and can on host computer, numerical value and historical record curve map be shown.
When the same day, output was set as 480t, uses and turn coal after 5 hours, according to above-mentioned each operational formula, draw numerical value as shown in table 1, these numerical value show and count in historical record curve map on host computer:
| Calorific value of gas kcal/m 3 | Every kilogram of lime hear rate kcal/kg | Power consumption kwh | Gas flow m 3/h |
| 1830 | 960 | 5215 | 2915 |
Table 1
Equivalent according to above-mentioned every kilogram of lime hear rate and power consumption, can determine the technological parameters such as the grey coal gas use amount of ton and blower fan aperture, select optimal processing parameter, and curing process model.
The disclosed technological means of the present invention program is not limited only to the disclosed technological means of above-mentioned embodiment, also comprises the technical scheme being comprised of above technical characterictic.
Claims (2)
1. a control method for the energy consumption monitoring system of sleeve kiln, is characterized in that:
Described energy consumption monitoring system comprises PLC control system and the host computer being connected with PLC control system, also comprise the gas calorific value apparatus, ultrasonic flow instrument and the blower fan that are connected with PLC control system respectively, described PLC system comprises and turns coal timer and mixed coal timer;
Described control method comprises the steps: the step of PLC systematic collection parameter, judges the step of kinds of gas by parameter, calculates the step of required various numerical value, shows the step of result of calculation on host computer;
The step of described PLC systematic collection parameter is: gas calorific value apparatus, ultrasonic flowmeter and each blower fan, be sent to PLC control system by calorific value, Gas Flow value and each blower fan current value respectively;
The described step of judging kinds of gas by parameter is: when calorific value is less than mixedly while turning coal judgment value, what represent to use is to turn coal, and when calorific value is greater than, mixed what represent while turning coal judgment value to use is mixed coal;
The step of the various parameters that described calculating is required is specially: when use turns coal, turn coal timer and start timing, turn coal power consumption and turn coal flow and start accumulation, simultaneously mixed coal timer reset zero clearing; When using mixed coal, mixed coal timer starts timing, and mixed coal power consumption, mixed coal flow start accumulation, turn coal timer reset zero clearing simultaneously.
2. the control method of the energy consumption monitoring system of sleeve kiln according to claim 1, is characterized in that: described mixed to turn coal judgment value be 2000kcal/m
3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210515283.4A CN103073203B (en) | 2012-12-05 | 2012-12-05 | Sleeve kiln energy consumption monitoring system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210515283.4A CN103073203B (en) | 2012-12-05 | 2012-12-05 | Sleeve kiln energy consumption monitoring system and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103073203A CN103073203A (en) | 2013-05-01 |
| CN103073203B true CN103073203B (en) | 2014-09-17 |
Family
ID=48149927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210515283.4A Expired - Fee Related CN103073203B (en) | 2012-12-05 | 2012-12-05 | Sleeve kiln energy consumption monitoring system and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103073203B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895710B (en) * | 2015-12-17 | 2019-04-23 | 北京嘉永会通能源科技有限公司 | The automation control method and device in limekiln |
| CN108072271A (en) * | 2016-11-07 | 2018-05-25 | 南京梅山冶金发展有限公司 | A kind of annular lime kiln automaton and control method based on heat consumption |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201331085Y (en) * | 2008-12-23 | 2009-10-21 | 南京中圣园机电设备有限公司 | Independent adjusting device of gas and combustion-supporting air for burner nozzle of annular sleeve kiln |
| CN102221299A (en) * | 2011-03-30 | 2011-10-19 | 南京梅山冶金发展有限公司 | Annular sleeve lime kiln burner control device |
| CN102692124A (en) * | 2012-05-24 | 2012-09-26 | 北京首钢自动化信息技术有限公司 | Automatic control method for improving uniformity of temperature of sleeve kiln |
-
2012
- 2012-12-05 CN CN201210515283.4A patent/CN103073203B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201331085Y (en) * | 2008-12-23 | 2009-10-21 | 南京中圣园机电设备有限公司 | Independent adjusting device of gas and combustion-supporting air for burner nozzle of annular sleeve kiln |
| CN102221299A (en) * | 2011-03-30 | 2011-10-19 | 南京梅山冶金发展有限公司 | Annular sleeve lime kiln burner control device |
| CN102692124A (en) * | 2012-05-24 | 2012-09-26 | 北京首钢自动化信息技术有限公司 | Automatic control method for improving uniformity of temperature of sleeve kiln |
Non-Patent Citations (4)
| Title |
|---|
| 刘晓艳.湘钢套筒式石灰窑系统中的燃烧过程控制.《企业技术开发》.2011,第30卷(第7期),第11-13页. |
| 刘珂等.环形套筒石灰窑控制系统设计及应用.《山东冶金》.2005,第27卷(第6期),第27-28页. |
| 湘钢套筒式石灰窑系统中的燃烧过程控制;刘晓艳;《企业技术开发》;20110430;第30卷(第7期);第11-13页 * |
| 环形套筒石灰窑控制系统设计及应用;刘珂等;《山东冶金》;20051231;第27卷(第6期);第27-28页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103073203A (en) | 2013-05-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101892338B (en) | Constant wind temperature control system for hot blast stove | |
| CN104229855B (en) | Utilize electricity generation boiler or the technique of sintering device flue gas on-line heating oxidation sweetening ash | |
| CN103375997B (en) | Method for regulating and controlling circulating flue-gas temperature and oxygen content | |
| CN201787823U (en) | Heat-power balancing device for sintering waste heat generating system | |
| CN202074842U (en) | Flue afterburning device | |
| CN103982911B (en) | Segmented ceramic kiln fuel gas and air linkage control system | |
| CN201318306Y (en) | Automatic frequency-changing speed-regulating system of electric stove environmental-protection dust-removing blower | |
| CN103073203B (en) | Sleeve kiln energy consumption monitoring system and control method thereof | |
| CN106011353B (en) | A kind of blast funnace hot blast stove air-fuel ratio self-optimization method | |
| CN202119234U (en) | Digitalized fully-automatic fireproof material drying oven | |
| CN204665692U (en) | A kind of bio-fuel air heating furnace intelligence control system | |
| CN203656971U (en) | Residual oxygen analytic combustion control device of hot blast stove | |
| CN205313585U (en) | Accurate burning control system of blast funnace hot blast stove | |
| CN206177055U (en) | Electric stove high temperature smoke and dust utilizes and dust collector | |
| CN206094922U (en) | Furnace body recirculating cooling water system | |
| CN205874470U (en) | Blast funnace hot blast stove optimal control system | |
| CN201155919Y (en) | Cement rotary kiln using coal gas as fuel | |
| CN104515402B (en) | A kind of residual-heat utilization method of sintering system and device | |
| CN203212332U (en) | Drying and calcining device for sulfuric acid and cement production from gypsum | |
| CN202938632U (en) | Energy-saving core rod preheating furnace heat-supply device | |
| CN204665343U (en) | The oxygen content control system of coal-burning boiler | |
| CN204495047U (en) | RKEF technique rotary kiln tertiary air system | |
| CN203890385U (en) | Waste heat recovery device of heat treatment furnace | |
| CN204313639U (en) | Charcoal element revolution bed calcining furnace process air control system | |
| CN202613957U (en) | Drying machine of rotary kiln body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20161205 |