CN112179127A - Energy-saving system for analysis, diagnosis and optimization of rotary cement kiln - Google Patents
Energy-saving system for analysis, diagnosis and optimization of rotary cement kiln Download PDFInfo
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- CN112179127A CN112179127A CN202011011700.2A CN202011011700A CN112179127A CN 112179127 A CN112179127 A CN 112179127A CN 202011011700 A CN202011011700 A CN 202011011700A CN 112179127 A CN112179127 A CN 112179127A
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- cement kiln
- rotary cement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/42—Arrangement of controlling, monitoring, alarm or like devices
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- General Engineering & Computer Science (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides an energy-saving system for analyzing, diagnosing and optimizing a rotary cement kiln, which comprises the rotary cement kiln, monitoring equipment, a central processing unit and a database server, wherein the database server receives load information of a spindle motor of the rotary cement kiln and temperature information of a dust collecting pipeline in real time, and an analysis module judges whether the rotary cement kiln is in an abnormal operation state or not; if the load value in the load information of the spindle motor of the rotary cement kiln is larger than or equal to the alarm value in the database server or the temperature value of the dust collecting pipeline is larger than or equal to the alarm value, the analysis module judges that the rotary cement kiln is in an abnormal state, and an alarm is output through the analysis module; if the load value in the load information of the spindle motor of the rotary cement kiln is smaller than the alarm value of the database server or the temperature value of the dust collecting pipeline is smaller than the alarm value, the analysis module judges that the rotary cement kiln is in a normal running state, and the firing efficiency of the rotary cement kiln is calculated according to the yield information and the pulverized coal consumption information of the rotary cement kiln.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of monitoring systems, in particular to an energy-saving system for analysis, diagnosis and optimization of a rotary cement kiln.
[ background of the invention ]
With the development of economy, the cement yield is increased sharply, and the contradiction between the rapid development and the subsequent resource and ecological environment of the cement industry as a high-energy-consumption industry is increasingly prominent.
The cement kiln is a thermal equipment for burning cement raw materials into cement clinker at high temperature, and is an extremely important key link in cement production. Although, many manufacturers in the market have already provided intelligent optimized energy-saving systems with various characteristics, which can solve some of the problems of energy consumption management; however, with the more extensive and urgent needs of enterprises for energy saving and emission reduction and energy saving services, the analysis and diagnosis module of the existing energy saving system still has some defects, and cannot meet the operation needs of refinement and intellectualization.
In view of the above, it is desirable to provide a new energy saving system for analyzing and diagnosing a rotary cement kiln to overcome the above-mentioned drawbacks.
[ summary of the invention ]
The invention aims to provide an energy-saving system for analyzing, diagnosing and optimizing a rotary cement kiln, which can monitor abnormal states of the rotary cement kiln in real time and reduce the occurrence of missing or misjudging of the abnormal states so as to quickly find and respond to the abnormal states of the rotary cement kiln in time, thereby reducing the phenomenon of energy waste.
In order to achieve the purpose, the invention provides an energy-saving system for analysis, diagnosis and optimization of a rotary cement kiln, which comprises a rotary cement kiln 1, a monitoring device 2, a central processing unit 3 and a database server 4, wherein the monitoring device 2 is installed on the rotary cement kiln 1, the monitoring device 2 is in communication connection with the central processing unit 3, the central processing unit 3 is in communication connection with the database server 4, and the central processing unit 3 is electrically connected with the rotary cement kiln 1 through a control switch 5;
the working steps of the database server 4 are as follows:
the database server 4 receives the load information of the spindle motor of the rotary cement kiln and the temperature information of the dust collecting pipeline in real time, and an analysis module of the database server 4 judges whether the rotary cement kiln is in an abnormal operation state; if the load value in the load information of the spindle motor of the rotary cement kiln is larger than or equal to the alarm value in the database server 4 or the temperature value of the dust collecting pipeline is larger than or equal to the alarm value, the analysis module of the database server 4 judges that the rotary cement kiln is in an abnormal state, and an alarm is output through the analysis module of the database server 4;
if the load value in the load information of the spindle motor of the rotary cement kiln is smaller than the alarm value in the database server 4 or the temperature value of the dust collecting pipeline is smaller than the alarm value, an analysis module of the database server 4 judges that the rotary cement kiln is in a normal operation state, and the firing efficiency eta of the rotary cement kiln is calculated in real time according to the yield information and the pulverized coal consumption information of the rotary cement kilny。
Preferably, the firing efficiency ηyThe calculation formula of (2) is as follows:
in the above formula, the first and second carbon atoms are,
ηythe burning efficiency of the cement rotary kiln is percentage; qshForming heat for the clinker; m isrIs the fuel consumption; m issrRaw material consumption; qnet,arReceiving a base low heating value for the fuel entering the kiln; qnet,srThe combustible substances in the raw materials receive basic low-level heating value.
Preferably, if the monitoring equipment monitors the firing efficiency etayWhen the numerical value is larger than or equal to the index value of the database server, the monitoring equipment uploads the corresponding temperature information and the corresponding rotating speed information of the rotary cement kiln to a database of the database server for storage; if firing efficiency etayAnd when the index value is smaller than the index value of the database server, the analysis module searches a normal index value closest to the index value in the database of the database server and outputs an alarm to prompt a user to adjust the running state of the rotary cement kiln.
Preferably, the monitoring device 2 is used for real-time monitoring data information of the rotary cement kiln 1 during operation and uploading the monitored data information to the data server 4, the data server 4 is used for storing the data information, and the central processing unit 3 is used for processing the data information stored in the database server 4.
Preferably, the data information includes yield information, pulverized coal consumption information, spindle motor load information, air supply amount information, firing kiln temperature information, and flue gas temperature information.
Preferably, the central processor (3) communicates with the database server (4) via GPRS or ZIGBEE.
Compared with the prior art, the energy-saving system for the analysis, diagnosis and optimization of the rotary cement kiln has the advantages that: the firing efficiency eta of the rotary cement kiln can be calculated in real time through the yield information and the pulverized coal consumption information of the rotary cement kilnyThe abnormal state part of the rotary cement kiln is monitored in real time, and the condition that the abnormal condition is omitted or misjudged is reduced, so that the abnormal state part of the rotary cement kiln can be quickly found and responded in time, and the phenomenon of energy waste is reduced.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a block schematic diagram of an energy saving system optimized for analysis and diagnosis of a rotary cement kiln according to the present invention.
FIG. 2 is a flow chart of an energy saving system for analyzing, diagnosing and optimizing a rotary cement kiln provided by the invention.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantageous effects of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, the invention provides an energy saving system for analysis, diagnosis and optimization of a rotary cement kiln, which comprises a rotary cement kiln 1, a monitoring device 2, a central processing unit 3 and a database server 4, wherein the monitoring device 2 is installed on the rotary cement kiln 1, the monitoring device 2 is in communication connection with the central processing unit 3, the central processing unit 3 is in communication connection with the database server 4, and the central processing unit 3 is electrically connected with the rotary cement kiln 1 through a control switch 5.
The monitoring device 2 is used for monitoring data information of the rotary cement kiln in real time during operation and uploading the monitored data information to the database server 4, the database server 4 is used for storing the data information, and the central processing unit 3 is used for processing the data information stored by the database server 4.
Specifically, the data information includes yield information, pulverized coal consumption information, spindle motor load information, air supply amount information, firing kiln temperature information, and flue gas temperature information.
Specifically, the central processor 3 communicates with the database server 4 through GPRS or ZIGBEE.
The following description focuses on how the database server 4 analyzes and diagnoses various data.
Referring to fig. 2, the database server 4 determines whether the rotary cement kiln is in an abnormal operation state by receiving the load information of the spindle motor of the rotary cement kiln and the temperature information of the dust collecting pipeline in real time, and if the load value in the load information of the spindle motor of the rotary cement kiln is greater than or equal to the alarm value (the alarm value is 1.05 times of the rated load value of the motor) in the database server 4 or the temperature value of the dust collecting pipeline is greater than or equal to the alarm value (the alarm value is 85 ℃), the analysis module of the database server determines that the rotary cement kiln is in an abnormal state (overload or overheat), and outputs an alarm to prompt a technician to maintain and overhaul equipment as soon as possible through the analysis module of the database server;
if the load value in the load information of the spindle motor of the rotary cement kiln is smaller than the alarm value (the alarm value is 1.05 times of the rated load value of the motor) in the database server 4 or the temperature value of the dust collection pipeline is smaller than the alarm value (the alarm value is 85 ℃), an analysis module of the database server judges that the rotary cement kiln is in a normal operation state, and the burning efficiency eta of the rotary cement kiln is calculated in real time according to the yield information and the pulverized coal consumption information of the rotary cement kilnyFiring efficiency etayThe calculation formula of (2) is as follows:
in the above formula, the first and second carbon atoms are,
ηythe burning efficiency of the cement rotary kiln is percentage;
Qshheat is formed for the clinker in kJ;
mrin kg for fuel consumption;
msrthe raw material consumption is expressed in kg;
Qnet,arthe unit is kJ/kg for receiving basic low-level heating value of fuel entering a kiln;
Qnet,srthe unit is kJ/kg as combustible substances in raw materials receive basic low-level heating value;
if the monitoring equipment monitors the firing efficiency etayWhen the numerical value is larger than or equal to the index value of the database server, the monitoring equipment uploads the corresponding temperature information and the corresponding rotating speed information of the rotary cement kiln to a database of the database server for storage; if firing efficiency etayAnd when the index value is smaller than the index value of the database server, the analysis module searches a normal index value closest to the index value in the database of the database server and outputs an alarm to prompt a user to adjust the running state of the rotary cement kiln.
Specifically, the alarm information output form adopts an interface popup window and APP push form to output.
The invention is not limited solely to that described in the specification and embodiments, and additional advantages and modifications will readily occur to those skilled in the art, so that the invention is not limited to the specific details, representative apparatus, and examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.
Claims (6)
1. The energy-saving system for analysis, diagnosis and optimization of the rotary cement kiln is characterized by comprising the rotary cement kiln (1), monitoring equipment (2), a central processing unit (3) and a database server (4), wherein the monitoring equipment (2) is installed on the rotary cement kiln (1), the monitoring equipment (2) is in communication connection with the central processing unit (3), the central processing unit (3) is in communication connection with the database server (4), and the central processing unit (3) is electrically connected with the rotary cement kiln (1) through a control switch (5);
the working steps of the database server (4) are as follows:
the database server (4) receives the load information of a spindle motor of the rotary cement kiln and the temperature information of a dust collecting pipeline in real time, and an analysis module of the database server (4) judges whether the rotary cement kiln is in an abnormal operation state; if the load value in the load information of the spindle motor of the rotary cement kiln is larger than or equal to the alarm value in the database server (4) or the temperature value of the dust collecting pipeline is larger than or equal to the alarm value, the analysis module of the database server (4) judges that the rotary cement kiln is in an abnormal state, and an alarm is output through the analysis module of the database server (4);
if the load value in the load information of the spindle motor of the rotary cement kiln is smaller than the alarm value in the database server (4) or the temperature value of the dust collecting pipeline is smaller than the alarm value, an analysis module of the database server (4) judges that the rotary cement kiln is in a normal running state, and the firing efficiency eta of the rotary cement kiln is calculated in real time according to the yield information and the pulverized coal consumption information of the rotary cement kilny。
2. The rotary cement kiln analytical diagnostic optimized energy saving system as set forth in claim 1, wherein the firing efficiency ηyThe calculation formula of (2) is as follows:
in the above formula, the first and second carbon atoms are,
ηythe burning efficiency of the cement rotary kiln is percentage; qshForming heat for the clinker; m isrIs the fuel consumption; m issrRaw material consumption; qnet,arReceiving a base low heating value for the fuel entering the kiln; qnet,srThe combustible substances in the raw materials receive basic low-level heating value.
3. The rotary cement kiln analysis, diagnosis and optimization energy-saving system as claimed in claim 2, wherein if the monitoring device monitors the burning efficiency ηyWhen the numerical value is larger than or equal to the index value of the database server, the monitoring equipment uploads the corresponding temperature information and the corresponding rotating speed information of the rotary cement kiln to a database of the database server for storage; if firing efficiency etayAnd when the index value is smaller than the index value of the database server, the analysis module searches a normal index value closest to the index value in the database of the database server and outputs an alarm to prompt a user to adjust the running state of the rotary cement kiln.
4. The energy-saving system for analyzing, diagnosing and optimizing the rotary cement kiln as recited in claim 1, wherein the monitoring device (2) is configured to real-time data information of the rotary cement kiln (1) during operation and upload the monitored data information to the data server (4), the data server (4) is configured to store the data information, and the central processing unit (3) is configured to perform information processing on the data information stored in the database server (4).
5. The rotary cement kiln analysis, diagnosis and optimization energy-saving system according to claim 4, wherein the data information includes yield information, coal powder consumption information, spindle motor load information, air supply amount information, kiln temperature information, and flue gas temperature information.
6. The rotary cement kiln analytical diagnosis optimized energy saving system as set forth in claim 1, wherein the central processor (3) communicates with the database server (4) through GPRS or ZIGBEE.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113093674A (en) * | 2021-04-01 | 2021-07-09 | 万洲电气股份有限公司 | Cement production comprehensive unit consumption automatic analysis optimization system based on big data analysis |
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| CN101514869A (en) * | 2009-03-18 | 2009-08-26 | 莱芜钢铁集团电子有限公司 | Industrial intelligent digital continuous monitoring analysis method and system |
| CN103030313A (en) * | 2013-01-09 | 2013-04-10 | 武安市新峰水泥有限责任公司 | Cement production and optimization system |
| CN103034130A (en) * | 2013-01-09 | 2013-04-10 | 武安市新峰水泥有限责任公司 | Cement on-line simulation system and implementation method thereof |
| CN103092171A (en) * | 2013-01-09 | 2013-05-08 | 武安市新峰水泥有限责任公司 | Cement digital management and control system |
| CN105022355A (en) * | 2014-04-21 | 2015-11-04 | 东北大学 | Cement rotary kiln intelligent optimization control system |
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- 2020-09-23 CN CN202011011700.2A patent/CN112179127A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101514869A (en) * | 2009-03-18 | 2009-08-26 | 莱芜钢铁集团电子有限公司 | Industrial intelligent digital continuous monitoring analysis method and system |
| CN103030313A (en) * | 2013-01-09 | 2013-04-10 | 武安市新峰水泥有限责任公司 | Cement production and optimization system |
| CN103034130A (en) * | 2013-01-09 | 2013-04-10 | 武安市新峰水泥有限责任公司 | Cement on-line simulation system and implementation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113093674A (en) * | 2021-04-01 | 2021-07-09 | 万洲电气股份有限公司 | Cement production comprehensive unit consumption automatic analysis optimization system based on big data analysis |
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Application publication date: 20210105 |