CN210268266U - Volatile component monitoring and temperature control device for preheating zone of carbon roasting furnace - Google Patents
Volatile component monitoring and temperature control device for preheating zone of carbon roasting furnace Download PDFInfo
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- CN210268266U CN210268266U CN201921081566.6U CN201921081566U CN210268266U CN 210268266 U CN210268266 U CN 210268266U CN 201921081566 U CN201921081566 U CN 201921081566U CN 210268266 U CN210268266 U CN 210268266U
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Abstract
The utility model relates to a volatile monitoring and temperature control device for a preheating zone of a carbon roasting furnace, which is characterized in that a set of detection control device is added in the preheating zone on the basis of the existing flame control system of the roasting furnace, the control device comprises a frame, a cross stretcher beam frame body is arranged on the frame, a temperature measuring device, a pressure measuring device and an image acquisition device are arranged on the cross stretcher beam frame body, and a pulse igniter is also arranged on the cross stretcher beam frame body; under the control of the control device, the temperature of the flame path is controlled by adjusting the opening degree of an air door of the smoke exhaust frame in a certain negative pressure range, and when the negative pressure reaches the range limit value and the temperature of the preheating zone does not reach a target value, the purpose of heating the flame path of the preheating zone according to a process set temperature curve is realized by a self-suction type pulse combustor with ignition and fire detection, which is inserted into the flame path; the utility model has the advantages of be used for online real-time, accurate preheating zone volatile component effusion and the analysis of the combustion condition, in time adjust the preheating zone temperature.
Description
Technical Field
The utility model relates to a plain calcination technical field of charcoal, concretely relates to plain monitoring of burning furnace preheating zone volatile and temperature control device of burning over a slow fire of charcoal.
Background
The heat required by the temperature increase of the carbon block in the preheating zone of the existing roasting furnace is mainly provided by two parts, one part is flue gas heat brought by upstream flue gas, and the other part is heat generated after the volatile components of the carbon block escape and then burn. Because volatile components in the preheating zone of the roasting furnace do not escape uniformly, the fluctuation of each stage of temperature rise in the preheating zone of the roasting furnace is large, and the temperature field distribution is not uniform. When the temperature of the preheating zone cannot keep up with the set process temperature, the current control mode can only improve the negative pressure of the flame path, increase the hot flue gas quantity coming from the upstream to carry out heat transfer and temperature rise, and when the flue gas quantity is large, the concentration of volatile components is diluted, so that the volatile components are too low in concentration to be combusted, and a vicious circle is formed. The existing roasting furnace preheating zone temperature control mode has high energy consumption, can not ensure that the temperature of the preheating zone meets the process temperature rise requirement, and directly influences the roasting quality of carbon products.
The burning of the volatile components in the roasting preheating zone is directly related to roasting energy consumption, quality and environmental protection indexes, the collection and analysis of the burning condition in a flame path of the preheating zone are lacked at present, an effective volatile component monitoring and temperature control method in the preheating zone is not available, a method combining flue gas analysis and manual observation is often adopted, and the method has the problems of multiple influencing factors, great influence by manual experience, untimely adjustment and control and influence on the roasting quality of carbon products. The method also often causes large amount of discharged flue gas and serious energy loss, and is contrary to the current environment-friendly concept of energy conservation and emission reduction; therefore, it is very necessary to provide a volatile component monitoring and temperature control device for a preheating zone of a carbon baking furnace, which is used for performing online real-time and accurate analysis on volatile component escape and combustion conditions in the preheating zone and adjusting the temperature of the preheating zone in time.
Disclosure of Invention
The utility model aims at overcoming the not enough of prior art, and provide one kind and be used for on-line real-time, the accurate charcoal that carries out preheating zone volatile composition and flee and the analysis of the burning condition, in time adjust the preheating zone temperature bakes burning furnace preheating zone volatile composition monitoring and temperature control device.
The purpose of the utility model is realized like this: the volatile component monitoring and temperature control device for the preheating area of the carbon baking furnace is suitable for a baking furnace with a furnace chamber flame path number not greater than 20 flame paths, the control device comprises a frame, a cross beam frame body is arranged on the frame, a temperature measuring device, a pressure measuring device and an image acquisition device are arranged on the cross beam frame body, a pulse igniter is further arranged on the cross beam frame body and connected with a pulse electromagnetic valve, the pulse igniter comprises an ignition electrode, the lower portion of the ignition electrode is connected with a gas protection pipe through a connecting plate, a fixed disc is arranged on the lower side of the gas protection pipe, a flame detector is arranged on the fixed disc, a detector protection pipe is arranged below the flame detector, an adjusting air disc is arranged at the joint of the fixed disc and the gas protection pipe, and a rotating handle is arranged on the adjusting air disc.
Collecting and analyzing the temperature, volatile component escape and combustion conditions of a preheating zone of a flame path of the roasting furnace by using the control device;
the temperature measuring device is used for acquiring the temperature in the flame path in real time under the control of the control device;
the pressure measuring device is used for acquiring the pressure in the flame path in real time under the control of the control device;
the image acquisition device is used for acquiring the information of the volatile combustion image in the flame path in real time under the control of the control device;
the pulse igniter is used for realizing high-pressure ignition under the control of the control device and spraying natural gas in a control cycle;
under the control of the control device, the temperature of the flame path is controlled by adjusting the opening degree of an air door of the smoke exhaust frame in a negative pressure range of-20 to-80 Pa, and when the negative pressure exceeds the upper limit of the range and the temperature of the preheating zone does not reach a target value, the purpose of heating the preheating zone of the flame path according to a process set temperature curve under the working condition of low negative pressure is realized by controlling the combustion of a pulse igniter inserted into the flame path.
The temperature measuring device comprises a thermocouple for collecting the temperature in the flame path and a compensating lead for signal transmission;
the pressure measuring device includes: the pressure sampling seat is used for being connected with a fire way wellhead and has a certain sealing function, the pressure transmitter is used for pressure acquisition measurement and signal conversion, and the pressure guiding pipe is used for connecting the pressure sampling seat and the pressure transmitter;
the image acquisition device includes: the system comprises a camera for image acquisition, a switch for data communication and/or a sampling seat for mounting the camera;
the control device is used for processing, analyzing and understanding according to the information of volatile component escaping and combustion images in the flame path obtained in real time so as to identify the combustion conditions of various different modes, further identifying and processing are carried out according to the picture gray level difference to obtain a group of quantifiable data models, the models are compared with the ideal data models to obtain a group of evaluation functions, and the evaluation results of the volatile component escaping and the combustion conditions of the flame path are obtained through a series of processing and evaluation on the combustion conditions.
The pulse igniter is used for releasing electric arcs to ignite high-voltage ignition electrodes of natural gas and air mixed gas, can be used for determining whether a flame detector of flame exists in a flame path, and can also be used for heating a furnace chamber of a preheating zone of a roasting furnace, the pulse igniter adopts a self-absorption mode to bring part of air into a combustor body for premixed combustion through high-speed natural gas, and the pressure of the natural gas is as follows: 10-50 KPa.
The sampling seat is used for operating the seat body part sealed with the flame path, and is also used for cooling and a camera protection cylinder convenient for image observation.
The utility model has the advantages that: a device for monitoring and controlling the volatile components in a preheating zone of a roasting furnace is characterized in that under the control of a control device, a set of detection control system is added on the basis of the existing flame control system of the roasting furnace, the temperature of the preheating zone is monitored in real time through a temperature measuring element inserted into a flame path, the pressure of the flame path in the preheating zone is monitored in real time through a pressure transmitter connected with a pressure sampling pipe inserted into the flame path, the combustion condition of the volatile components in the flame path is monitored through a professional camera, the combustion condition and state images of the volatile components in the flame path are collected in real time and transmitted to the control device, the control device is in data communication with the original flame control system through an industrial Ethernet, the temperature and pressure of the flame path, the opening of a smoke exhaust frame valve and other field working condition data are obtained through the original flame control system, and an ideal data model is. The images are processed, analyzed and interpreted by a computer, to identify various modes of combustion conditions, the pictures are further identified and processed by software according to the gray level difference of the pictures to obtain a group of quantifiable data models, comparing the models with the ideal data model to obtain a group of evaluation functions, obtaining the evaluation result of the combustion condition of the flame path through a series of processing and evaluation of the combustion condition, this result can be provided, on the one hand, to the raw flame control system for targeted process adjustment and optimization, and, on the other hand, to the control of the pulse igniter, the coordination control of the whole system of the roasting furnace is carried out by an advanced control algorithm in the control device and the combination of the temperature rise condition of the combustion zone, therefore, the balance of the combustion process of the whole flame control system is realized, the purpose of system optimization is achieved, and the purpose of heating the preheating zone of the flame path according to a process temperature curve is realized; the utility model has the advantages of a be used for online real-time, accurate preheating zone volatile components to escape and the analysis of the combustion condition, in time adjust the preheating zone temperature.
Drawings
Fig. 1 is a schematic view of the front mounting structure of the rack of the present invention.
Fig. 2 is a schematic view of the side mounting structure of the rack of the present invention.
Fig. 3 is a schematic structural diagram of the pulse igniter of the invention.
Fig. 4 is a schematic view of the connection structure between the image acquisition device and the sampling seat of the present invention.
In the figure 1, a frame 2, a gas pipeline 3, a control switch 4, a cross beam frame body 5, a temperature measuring device 6, a pressure measuring device 7, an image acquisition device 8, a pulse igniter 9, a pulse electromagnetic valve 10, an ignition electrode 11, a connecting plate 12, a gas protection pipe 13, a flame detector 14, a detector protection pipe 15, a rotating handle 16, a fixed disc 17, an adjusting air disc 18, a combustor outer spray pipe 19, a handle 20, a connecting seat 21, a camera protection cylinder 22, a camera 23 and a connecting piece are arranged.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Example 1
As shown in fig. 1-4, in the implementation, the pulse igniter 8 is inserted into a corresponding roasting furnace fire well mouth, and after the interface is sealed, the ignition and on-off operation of the pulse igniter 8 are controlled according to the instruction of the control device; the image acquisition device 7 is inserted into an upstream fire well mouth of a corresponding roasting furnace fire path combustor, after an interface is sealed, volatile combustion conditions and state images in a fire path are acquired in real time and transmitted to the control device, the temperature measurement device 5 and the pressure measurement device 6 are inserted into the upstream fire well mouth of the corresponding roasting furnace fire path combustor, after the interface is sealed, temperature and pressure in the fire path are acquired in real time, the control device is in data communication with an original flame control system through an industrial Ethernet, field working condition data such as fire path temperature, pressure and opening of a smoke exhaust frame valve are obtained through the original flame control system, and an ideal data model is obtained according to a preset mathematical model. The images are processed, analyzed and understood by a computer to identify the combustion conditions of various different modes, the images are further identified and processed by software according to the image gray level differences to obtain a group of quantifiable data models, the models are compared with the idealized data models to obtain a group of evaluation functions, the evaluation result of the combustion condition of the flame path is obtained through a series of processing and evaluation of the combustion condition, and the result can be provided for an original flame control system to carry out targeted process adjustment and optimization, on the other hand, a pulse igniter 8 is controlled, and the coordination control of the whole system of the roasting furnace is carried out by combining the temperature rise condition of a combustion area through an advanced control algorithm in a control device, so that the balance of the combustion process of the whole flame control system is realized, and the purpose of system optimization is achieved. The specific implementation is that under the control of the control device, the temperature of the flame path is controlled by adjusting the opening degree of an air door of the smoke exhaust frame in a certain range of the negative pressure of the flame path, and when the negative pressure of the flame path reaches the range limit value and the temperature of the preheating zone does not reach the target value, the purpose of heating the flame path in the preheating zone according to the process temperature curve is realized by inserting the pulse igniter 8 in the flame path.
Fig. 2 is a schematic structural diagram of the pulse igniter 8 of the present invention, when in use, the pulse igniter 8 is first put into the corresponding flame path fire well mouth, after the interface is sealed, the ignition electrode 10 is controlled by the control device to be powered on to form a discharge loop with the inner wall of the gas protection tube 12, so as to release electric arc, ignite the natural gas at the nozzle part of the gas protection tube 12, the flame detector 13 detects whether there is flame in the nozzle part and the outer nozzle 18 of the burner, and if there is flame, the flame normally works; and if no flame exists, alarming and stopping working.
Fig. 3 is the utility model discloses a structural schematic of sampling seat is connected with flame path to image acquisition device 7, during operation, put into corresponding flame path fire well head earlier with the device, after the interface is sealed, give camera 22 power supply by controlling means, camera 22 gives controlling means with the interior volatile burning condition image of flame path, as image and data analysis's foundation.
Example 2
As shown in fig. 1-4, the volatile component monitoring and temperature control device for the preheating zone of a carbon baking furnace is suitable for a baking furnace with a number of flame paths in a furnace chamber not greater than twenty flame paths, the control device comprises a frame 1, a cross beam frame body 4 is arranged on the frame 1, a temperature measuring device 5, a pressure measuring device 6 and an image collecting device 7 are arranged on the cross beam frame body 4, a pulse igniter 8 is further arranged on the cross beam frame body 4, the pulse igniter 8 is connected with a pulse electromagnetic valve 9, the pulse igniter 8 comprises an ignition electrode 10, the lower part of the ignition electrode 10 is connected with a gas protection pipe 12 through a connecting plate 11, a fixed disc 16 is arranged on the lower side of the gas protection pipe 12, a flame detector 13 is arranged on the fixed disc 16, a detector protection pipe 14 is arranged below the flame detector 13, and an adjusting air disc 17 is arranged at the joint of the fixed disc 16 and the gas, the adjusting wind disk 17 is provided with a rotating handle 15.
The temperature measuring device 5 is used for acquiring the temperature in the flame path in real time under the control of the control device; the pressure measuring device 6 is used for collecting the pressure in the flame path in real time under the control of the control device; the image acquisition device 7 is used for acquiring the information of the volatile combustion image in the flame path in real time under the control of the control device; the pulse igniter 8 is used for realizing high-pressure ignition under the control of the control device and spraying natural gas in a matching control period.
A device for monitoring and controlling the volatile components in a preheating zone of a roasting furnace is characterized in that under the control of a control device, a set of detection control system is added on the basis of the existing flame control system of the roasting furnace, the temperature of the preheating zone is monitored in real time through a temperature measuring element inserted into a flame path, the pressure of the flame path in the preheating zone is monitored in real time through a pressure transmitter connected with a pressure sampling pipe inserted into the flame path, the combustion condition of the volatile components in the flame path is monitored through a professional camera, the combustion condition and state images of the volatile components in the flame path are collected in real time and transmitted to the control device, the control device is in data communication with the original flame control system through an industrial Ethernet, the temperature and pressure of the flame path, the opening of a smoke exhaust frame valve and other field working condition data are obtained through the original flame control system, and an ideal data model is. The images are processed, analyzed and interpreted by a computer, to identify various modes of combustion conditions, the pictures are further identified and processed by software according to the gray level difference of the pictures to obtain a group of quantifiable data models, comparing the models with the ideal data model to obtain a group of evaluation functions, obtaining the evaluation result of the combustion condition of the flame path through a series of processing and evaluation of the combustion condition, this result can be provided, on the one hand, to the raw flame control system for targeted process adjustment and optimization, and, on the other hand, to the control of the pulse igniter, the coordination control of the whole system of the roasting furnace is carried out by an advanced control algorithm in the control device and the combination of the temperature rise condition of the combustion zone, therefore, the balance of the combustion process of the whole flame control system is realized, the purpose of system optimization is achieved, and the purpose of heating the preheating zone of the flame path according to a process temperature curve is realized; the utility model has the advantages of a be used for online real-time, accurate preheating zone volatile components to escape and the analysis of the combustion condition, in time adjust the preheating zone temperature.
Claims (5)
1. The volatile component monitoring and temperature control device for the preheating zone of the carbon roasting furnace is characterized in that: the control device comprises a rack, a cross stretcher beam frame body is arranged on the rack, a temperature measuring device, a pressure measuring device and an image acquisition device are arranged on the cross stretcher beam frame body, a pulse igniter is further arranged on the cross stretcher beam frame body and connected with a pulse type electromagnetic valve, the pulse igniter comprises an ignition electrode, the lower side of the ignition electrode is connected with a gas protection pipe through a connecting plate, a fixed disc is arranged on the lower side of the gas protection pipe, a flame detector is arranged on the fixed disc, a detector protection pipe is arranged below the flame detector, an adjusting air disc is arranged at the joint of the fixed disc and the gas protection pipe, and a rotating handle is arranged on the adjusting air disc.
2. A carbon baking furnace preheating zone volatile component monitoring and temperature control apparatus according to claim 1, wherein: the temperature measuring device comprises a thermocouple for collecting the temperature in the flame path and a compensating lead for signal transmission.
3. A carbon baking furnace preheating zone volatile component monitoring and temperature control apparatus according to claim 1, wherein: the pressure measuring device includes: the pressure sampling seat is used for being connected with a fire way wellhead and has a certain sealing effect, the pressure transmitter is used for pressure acquisition measurement and signal conversion, and the pressure guiding pipe is used for connecting the pressure sampling seat and the pressure transmitter.
4. A carbon baking furnace preheating zone volatile component monitoring and temperature control apparatus according to claim 1, wherein: the image acquisition device includes: a camera for image acquisition, a switch for data communication and/or a sample holder for mounting the camera.
5. A carbon baking furnace preheating zone volatile component monitoring and temperature control apparatus according to claim 1, wherein: the pulse igniter is used for heating a furnace chamber in a preheating zone of the roasting furnace, the pulse igniter adopts a self-absorption mode, partial air is brought into the pulse igniter through high-speed natural gas to carry out premixed combustion on the pulse igniter, and the natural gas pressure is as follows: 10-50 KPa.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921081566.6U CN210268266U (en) | 2019-07-11 | 2019-07-11 | Volatile component monitoring and temperature control device for preheating zone of carbon roasting furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921081566.6U CN210268266U (en) | 2019-07-11 | 2019-07-11 | Volatile component monitoring and temperature control device for preheating zone of carbon roasting furnace |
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| CN210268266U true CN210268266U (en) | 2020-04-07 |
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| CN201921081566.6U Active CN210268266U (en) | 2019-07-11 | 2019-07-11 | Volatile component monitoring and temperature control device for preheating zone of carbon roasting furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207502A (en) * | 2019-07-11 | 2019-09-06 | 河南华索科技有限公司 | The monitoring of carbon roasting furnace preheating zone volatile matter and temperature control equipment and method |
| CN115849365A (en) * | 2023-02-27 | 2023-03-28 | 沈阳铝镁设计研究院有限公司 | Graphitizing furnace with automatic ignition device |
-
2019
- 2019-07-11 CN CN201921081566.6U patent/CN210268266U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207502A (en) * | 2019-07-11 | 2019-09-06 | 河南华索科技有限公司 | The monitoring of carbon roasting furnace preheating zone volatile matter and temperature control equipment and method |
| CN115849365A (en) * | 2023-02-27 | 2023-03-28 | 沈阳铝镁设计研究院有限公司 | Graphitizing furnace with automatic ignition device |
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