CN110701899A - Dryer, dryer control method and system, and computer-readable storage medium - Google Patents
Dryer, dryer control method and system, and computer-readable storage medium Download PDFInfo
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- CN110701899A CN110701899A CN201911049922.0A CN201911049922A CN110701899A CN 110701899 A CN110701899 A CN 110701899A CN 201911049922 A CN201911049922 A CN 201911049922A CN 110701899 A CN110701899 A CN 110701899A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/02—Heating arrangements using combustion heating
- F26B23/028—Heating arrangements using combustion heating using solid fuel; burning the dried product
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Abstract
The invention provides a dryer, a dryer control method, a dryer control system, and a computer-readable storage medium. The dryer includes: a drum; the burner is connected with one end of the roller and is provided with a nozzle which is positioned in the roller; the image acquisition assembly is arranged on the roller and is configured to be used for acquiring image information of flame sprayed out of the nozzle; and the controller is connected with the image acquisition assembly and the combustor and controls the combustor to work according to the image information. The controller can use the flame image information collected by the image collecting assembly as the basis for judging the working condition of the current burner, so that whether the current flame can meet the drying requirement or not is analyzed, and the automatic regulation and control of the dryer are realized. And then realize promoting the intelligent degree of drying-device and degree of automation, for the user brings the convenient condition, promote the technological effect of drying efficiency and stoving reliability.
Description
Technical Field
The present invention relates to the technical field of drying machinery, and in particular, to a dryer, a dryer control method, a dryer control system, and a computer-readable storage medium.
Background
The drum drying equipment is also called rotary drying drum, and is formed from long cylinder which can be obliquely rotated, in the interior of which the drying material can be moved, and the dried material can be directly heated by means of hot air or flame in the drying drum.
Because the combustion process of the drying drum is complex, besides the direct heating of stable and uniform flame, the interaction between the blades in the drying drum and the convection air can also cause great influence on the flame combustion. Because the heating of drying in the asphalt plant stoving cylinder section of thick bamboo is gone on in confined space, combustor flame shape is inside the cylinder, and the holistic shaping condition of flame can't be observed to the flame viewing aperture of combustor assembly side, only when leading to the fact established harm (if burn when flame diameter is too big and lose blade and section of thick bamboo wall), just can discover, remove the parameter of passive adjustment combustor to as for current cylinder drying equipment operation degree of difficulty is great, and has great potential safety hazard.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, a first aspect of the present invention is to provide a dryer.
A second aspect of the present invention provides a dryer control method.
A third aspect of the present invention provides a dryer control system.
A fourth aspect of the present invention is directed to a computer-readable storage medium.
In view of this, a first aspect of the present invention provides a dryer, including: a drum; the burner is provided with a nozzle which is positioned inside one end of the roller and faces the other end of the roller; the image acquisition assembly is configured to be used for acquiring image information of flame sprayed out of the nozzle; and the controller is connected with the image acquisition assembly and the combustor and controls the combustor to work according to the image information.
In the technical scheme, the dryer is limited, and a roller, a burner, an image acquisition assembly and a controller are arranged on the dryer. Be provided with the cavity in the cylinder, the material of treating to dry is dried in this cavity, and the one end of cylinder is provided with the combustor, and the spout on the combustor after the completion assembly is located the one end of the inside cavity of cylinder, and the other end of the cavity of orientation cylinder to through the flame heating that erupts the material of treating to dry in the whole cylinder. The image acquisition assembly is used for acquiring image information of flame sprayed out by the nozzle of the combustor. The controller is respectively connected with the image acquisition assembly and the combustor and is used for controlling the combustor to execute corresponding work through the image information acquired by the image acquisition assembly. In the working process, the burner starts to work, flame is sprayed out from the nozzle, then the material to be dried is injected into the rotating drum, and the liquid in the material to be dried is heated and evaporated under the action of the flame, so that the drying function of the dryer is realized. On the basis, the image acquisition assembly and the controller connected with the image acquisition assembly and the combustor are arranged on the dryer, so that the controller can take flame image information acquired by the image acquisition assembly as a basis for judging the working condition of the current combustor, whether the current flame can meet the drying requirement is analyzed, and if the flame cannot meet the drying requirement, the working state of the combustor is correspondingly controlled to adjust, so that the automatic regulation and control of the dryer are realized, and the blades and the cylinder wall are prevented from being burnt and damaged due to the overlarge flame diameter. The invention can improve the intelligentization degree and the automation degree of the dryer, bring convenience to users and improve the technical effects of drying efficiency and drying reliability.
In addition, the dryer in the above technical solution provided by the present invention may further have the following additional technical features:
in the above technical solution, further, the image capturing assembly includes: a mounting seat; and the video monitor is arranged on the mounting seat, and the monitoring direction of the video monitor is opposite to the spraying direction of the nozzle.
In the technical scheme, the image acquisition assembly comprises a mounting seat and a video monitor. The video monitor is the work main part of image acquisition subassembly, and the nozzle of combustor is aimed at to the camera lens of video monitor, guarantees that spout spun flame is located video monitor's monitoring range to gather the image or the video of spout spun flame in the course of the work, thereby realize the automatic acquisition of flame image information, realize the automated control of drying apparatus. The mount pad is video monitor's location mounting structure for with video monitor location mounting on the relative position of cylinder, in order to guarantee that video monitor's camera lens can aim at the spout, thereby has promoted video monitor's location accuracy and reliability, and then promoted the operational reliability and the accuracy of drying-device.
In any of the above technical solutions, further, the image capturing assembly further includes: the baffle is movably connected with the mounting seat; wherein, when the baffle moves to open position, video monitor can gather the image information of spout blowout flame, when the baffle moved to closed position, the baffle sheltered from video monitor in the direction of control.
In the technical scheme, a baffle is further arranged on the image acquisition assembly and movably connected with the mounting seat. The movably connected baffle has two opposite positions of opening and closing on the mounting seat, and when the baffle is in the closed position, the baffle is matched with the mounting seat to shield a lens of the video monitor; correspondingly, when the baffle is in the opening position, the baffle is moved away from a light transmission path between the nozzle and a lens of the video monitor, so that the video monitor can acquire images and videos of flames sprayed from the nozzle. Through setting up the baffle that can open and shut on the mount pad, make the baffle can protect video monitor not damaged under the condition that does not use video monitor, reduce video monitor by the possibility of external shock harm, prevent that video monitor from exposing under high temperature environment for a long time, extension video monitor life promotes the technological effect of product stability and reliability.
In any of the above technical solutions, further, the dryer further includes: an air pump; the first end of the purge air pipe is connected with the air pump, and the second end of the purge air pipe faces the video monitor.
In the technical scheme, the dryer is also provided with a blowing air pipe and an air pump. The blowing air pipe and the air pump are cleaning devices of the dryer, a first port of the blowing air pipe is connected with an output end of the air pump, and a second port of the blowing air pipe faces the video monitor. In the course of the work, the air pump is with gas compression to the purge gas pipe in, in its back purge gas pipe with the leading-in image acquisition subassembly of high-pressure gas to through the adnexed dust on the high-pressure gas clearance video monitor, thereby avoid appearing piling up the flame image that arouses and not clear, video monitor damages the scheduling problem because of the dust.
A second aspect of the present invention provides a dryer control method for a dryer in any one of the above technical solutions, the dryer control method including: acquiring image information of the current flame, identifying the image information and acquiring form information of the current flame; comparing the current flame form information with the pre-stored flame form information; generating a corresponding control instruction according to the comparison result; and controlling the burner to work according to the control instruction.
In the technical scheme, a dryer control method is defined, and the control method is used for controlling the dryer provided by the invention to work. In the drying process, firstly, the image information of the current flame sprayed out from the nozzle is obtained through the image acquisition assembly, and the flame form information in the image information is identified through the image processing technology. And then, comparing the current flame form information with the pre-stored flame form information to generate a comparison structure. And finally, generating a corresponding control instruction according to the comparison result, and controlling the work of the burner according to the control instruction. The pre-stored flame form information is standard flame form information in a drying process, and represents the flame form generated by the burner in a working state meeting the drying requirement. According to the invention, by acquiring the image information of the flame and comparing the current flame form with the pre-stored flame form to generate the control instruction, the dryer can take the flame image information acquired by the image acquisition assembly as a basis for judging the working condition of the current burner, so that whether the current flame can meet the drying requirement is analyzed, and if the current flame cannot meet the drying requirement, the working state of the burner is correspondingly controlled to adjust, so that the automatic regulation and control of the dryer are realized. And further, the dryer control method is optimized, the intelligent degree and the automatic degree of the dryer are improved, convenience conditions are brought to users, and the drying efficiency and the drying reliability are improved.
In any of the above technical solutions, further, the step of comparing the current flame form information with the pre-stored flame form information specifically includes: determining the current maximum flame diameter according to the current flame form information, and determining the pre-stored maximum flame diameter according to the pre-stored flame form information; and comparing the current maximum flame diameter with the prestored maximum flame diameter, and calculating the absolute value of the difference value between the current maximum flame diameter and the prestored maximum flame diameter.
In the technical scheme, the comparison process of the current flame form information and the pre-stored flame form information is specifically limited: analyzing the current maximum flame diameter in the current flame form information through an image processing technology, and confirming the pre-stored maximum flame diameter according to the pre-stored flame form information; then, the magnitude relation between the current maximum flame diameter and the prestored maximum flame is compared, and the absolute value of the difference between the current maximum flame diameter and the prestored maximum flame diameter is calculated. Specifically, the current maximum flame diameter reflects the size of the current flame to represent the heating capacity of the current burner. The pre-stored maximum flame diameter represents the size of the standard flame generated by the burner in the case of satisfying the drying requirement. By comparing the size relationship between the current maximum flame diameter and the prestored maximum flame diameter, whether the flame generated by the current burner meets the drying requirement can be judged. If the current maximum flame diameter is smaller than the prestored maximum flame diameter, the fact that the flame generated by the current dryer cannot meet the drying requirement is proved, and the problem of incomplete drying is easily caused. Otherwise, if the current maximum flame diameter is larger than the prestored maximum flame diameter, the fact that the flame generated by the current dryer exceeds the drying requirement is proved, and the problem of excessive drying or material burning is easily caused. By calculating the absolute value of the difference between the current maximum flame diameter and the pre-stored maximum flame diameter, the controller can obtain the difference between the current flame generated by the burner and the pre-stored flame by means of the absolute value of the difference.
In any of the above technical solutions, further, the step of generating the corresponding control instruction according to the comparison result specifically includes: controlling the burner to increase the air inlet quantity based on the fact that the current maximum flame diameter is larger than the pre-stored maximum flame diameter and the absolute value of the difference is larger than a preset threshold value; and controlling the burner to reduce the air inlet quantity based on that the current maximum flame diameter is smaller than the pre-stored maximum flame diameter and the absolute value of the difference is larger than the preset threshold value.
In the technical scheme, the step of generating the corresponding control instruction according to the comparison result is specifically limited as follows: when the comparison result shows that the current maximum flame diameter is larger than the pre-stored maximum flame diameter and the absolute value of the difference value between the current maximum flame diameter and the pre-stored maximum flame diameter is larger than the preset threshold value, the current flame sprayed out from the nozzle of the burner exceeds the drying requirement, and the problems of transitional drying and even ignition of materials and a roller easily occur. In this regard, the controller generates a control command to increase the amount of air intake to increase the amount of air flow introduced by the burner to elongate the flame without changing the amount of fuel output, the maximum diameter of the flame elongated by the air flow being correspondingly reduced to adjust the current flame configuration to the standard flame configuration. When the comparison result is that the current maximum flame diameter is smaller than the pre-stored maximum flame diameter and the absolute value of the difference value between the current maximum flame diameter and the pre-stored maximum flame diameter is larger than the preset threshold value, the current flame sprayed out from the nozzle of the burner cannot meet the drying requirement, and the problem of insufficient drying is easily caused. In this regard, the controller generates a control command to reduce the intake air amount to reduce the amount of airflow introduced by the burner, thereby shortening the flame length without changing the fuel output amount, and the diameter of the flame shortened in length is correspondingly increased to adjust the current flame profile to the standard flame profile. Thereby realized the automated control of combustor, guaranteed that the flame that the combustor produced can satisfy the stoving demand, and then realized promoting the technological effect of drying apparatus operational reliability.
In any of the above technical solutions, further, the dryer control method further includes: acquiring the current air intake of the burner; and generating an alarm instruction based on the condition that the current air intake reaches the maximum air intake or the minimum air intake of the combustor and the absolute value of the difference is greater than the threshold value.
In the technical scheme, the controller acquires the current air intake of the burner, when the acquired current air intake reaches the maximum air intake or the minimum air intake which can be achieved under the hardware condition of the burner, the controller represents that the burner cannot correspondingly adjust the maximum diameter of the flame by adjusting the air intake, and immediately generates an alarm instruction to prompt a user to adjust in time. For example: when the absolute value of the difference value between the current maximum flame diameter and the prestored maximum flame diameter is larger than a preset threshold value and the current air intake reaches the maximum air intake, sending an alarm that the flame diameter is too large so as to prompt a user to replace a spray gun head and reduce the fuel injection angle of a combustor to further adjust the flame form; correspondingly, when the absolute value of the difference value between the current maximum flame diameter and the prestored maximum flame diameter is larger than the preset threshold value and the current air intake reaches the minimum air intake, an alarm that the flame diameter is too small is sent out to prompt a user to replace a spray gun head and reduce the fuel injection angle of the combustor so as to further adjust the flame form. Thereby in time remind the user to adjust the combustor to avoid appearing drying inadequately, material and burn out cylinder scheduling problem, promote the stoving effect of drying apparatus, promote the technological effect of drying apparatus security and reliability.
A third aspect of the present invention provides a dryer control system, including: a memory having a computer program stored thereon; a processor configured to execute a computer program to implement the dryer control method of any of the above technical aspects.
In the technical scheme, a dryer control system is defined, and the control system comprises a memory and a processor. The memory stores a computer program, and the processor is configured to execute the computer program to realize the dryer control method defined by the invention. The control method is used for controlling the dryer provided by the invention to work. In the drying process, firstly, the image information of the current flame sprayed out from the nozzle is obtained through the image acquisition assembly, and the flame form information in the image information is identified through the image processing technology. And then, comparing the current flame form information with the pre-stored flame form information to generate a comparison structure. And finally, generating a corresponding control instruction according to the comparison result, and controlling the work of the burner according to the control instruction. The pre-stored flame form information is standard flame form information in a drying process, and represents the flame form generated by the burner in a working state meeting the drying requirement. According to the invention, by acquiring the image information of the flame and comparing the current flame form with the pre-stored flame form to generate the control instruction, the dryer can take the flame image information acquired by the image acquisition assembly as a basis for judging the working condition of the current burner, so that whether the current flame can meet the drying requirement is analyzed, and if the current flame cannot meet the drying requirement, the working state of the burner is correspondingly controlled to adjust, so that the automatic regulation and control of the dryer are realized. And then promote the intelligent degree of drying-device and degree of automation, for the user brings the convenient condition, promote the technological effect of drying efficiency and stoving reliability.
A fourth aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the dryer control method provided in any of the above technical solutions, and thus, the computer-readable storage medium includes all the beneficial effects of the dryer control method provided in any of the above technical solutions, and is not described herein again.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 illustrates a schematic structural view of a dryer provided according to an embodiment of the present invention;
fig. 2 is a partially enlarged view of the dryer at a in the embodiment shown in fig. 1;
fig. 3 illustrates a flowchart of a dryer control method according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a dryer control method according to another embodiment of the present invention;
fig. 5 is a flowchart illustrating a dryer control method according to still another embodiment of the present invention;
fig. 6 is a flowchart illustrating a dryer control method according to still another embodiment of the present invention;
fig. 7 is a flowchart illustrating a dryer control method according to still another embodiment of the present invention;
fig. 8 is a block diagram illustrating a construction of a dryer control system according to an embodiment of the present invention;
fig. 9 illustrates an operation flow diagram of a dryer according to an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 and fig. 2 is:
1 dryer, 10 drums, 12 burners, 122 nozzles, 14 image acquisition components, 142 mounts, 144 video monitors, 146 baffles, 16 feeders, 18 feed boxes, 20 feeders, 22 collectors, 24 discharge boxes, 26 purge pipes.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A dryer 1, a dryer control method, a dryer control system, and a computer-readable storage medium according to some embodiments of the present invention are described below with reference to fig. 1 to 9.
As shown in fig. 1, in an embodiment of a first aspect of the present invention, there is provided a dryer 1, the dryer 1 including: a drum 10; a burner 12, wherein the burner 12 is provided with a nozzle 122, and the nozzle 122 is positioned inside one end of the roller 10 and faces the other end of the roller 10; the image acquisition assembly 14, the image acquisition assembly 14 is configured to be used for acquiring image information of flames sprayed by the nozzles 122; and the controller is connected with the image acquisition assembly 14 and the combustor 12, and controls the combustor 12 to work according to the image information.
In this embodiment, a dryer 1 is defined, and the dryer 1 is provided with a drum 10, a burner 12, an image pickup assembly 14, and a controller. The drum 10 is provided with a cavity in which the material to be dried is dried, one end of the drum 10 is provided with the burner 12, the nozzle 122 on the burner 12 after assembly is located at one end of the cavity inside the drum 10 and faces the other end of the cavity of the drum 10, so as to heat the material to be dried in the whole drum 10 through the ejected flame. The image capturing assembly 14 is configured to capture image information of the flame emitted from the nozzle 122 of the burner 12. The controller is respectively connected with the image acquisition assembly 14 and the combustor 12, and is used for controlling the combustor 12 to execute corresponding work through the image information acquired by the image acquisition assembly 14. In the working process, the material to be dried is injected into the rotating drum 10, and then the burner 12 starts to work to spray flame at the nozzle 122, so that the liquid in the material to be dried is heated and evaporated under the action of the flame, and the drying function of the dryer 1 is realized. On the basis, the image acquisition assembly 14 and the controller connected with the image acquisition assembly 14 and the combustor 12 are arranged on the dryer 1, so that the controller can use flame image information acquired by the image acquisition assembly 14 as a basis for judging the current working condition of the combustor 12, whether the current flame can meet the drying requirement is analyzed, and if the current flame can not meet the drying requirement, the working state of the combustor 12 is correspondingly controlled to adjust, so that the automatic regulation and control of the dryer 1 are realized. And then promote 1 intelligent degree of drying-device and degree of automation, for the user brings the convenient condition, promote the technological effect of drying efficiency and stoving reliability.
In one embodiment of the present invention, further, as shown in fig. 2, the image acquisition assembly 14 includes: a mounting seat 142; and the video monitor 144 is arranged on the mounting base 142, and the monitoring direction of the video monitor 144 is opposite to the spraying direction of the spray nozzle 122.
In this embodiment, the image acquisition assembly 14 includes a mount 142 and a video monitor 144. The video monitor 144 is a working body of the image capturing assembly 14, a lens of the video monitor 144 is aligned with the nozzle 122 of the burner 12, and it is ensured that the flame sprayed from the nozzle 122 is located within a monitoring range of the video monitor 144, so as to capture an image or video of the flame sprayed from the nozzle 122 in a working process, thereby realizing automatic capturing of flame image information and automatic control of the dryer 1. The mounting seat 142 is a positioning and mounting structure of the video monitor 144, and is used for positioning and mounting the video monitor 144 at a relative position of the drum 10, so as to ensure that a lens of the video monitor 144 can be aligned with the nozzle 122, thereby improving the positioning accuracy and reliability of the video monitor 144, and further improving the working reliability and accuracy of the dryer 1.
In an embodiment of the present invention, further, as shown in fig. 2, the image capturing assembly 14 further includes: a baffle 146 movably connected with the mounting base 142; wherein, when the baffle 146 moves to the open position, the video monitor 144 can collect the image information of the flame sprayed from the nozzle 122, and when the baffle 146 moves to the closed position, the baffle 146 shields the video monitor 144 in the monitoring direction.
In this embodiment, a baffle 146 is further disposed on the image capturing assembly 14, and the baffle 146 is movably connected to the mounting base 142. The movably connected baffle 146 has two opposite positions of opening and closing on the mounting base 142, and when the baffle 146 is in the closed position, the baffle 146 is matched with the mounting base 142 to shield the lens of the video monitor 144; correspondingly, when the shutter 146 is in the open position, the shutter 146 is moved away from the light path between the nozzle 122 and the lens of the video monitor 144 to ensure that the video monitor 144 can capture images and video of the flames emitted from the nozzle 122. Through setting up the baffle 146 that can open and shut on mount pad 142, make baffle 146 can protect video monitor 144 not damaged under the condition that does not use video monitor 144, reduce video monitor 144 by the possibility of external shock harm, prevent that video monitor 144 from exposing under the high temperature environment for a long time, extension video monitor 144 life promotes the technological effect of product stability and reliability.
In an embodiment of the present invention, further, as shown in fig. 2, the dryer 1 further includes: an air pump; a purge gas pipe 26, a first end of the purge gas pipe 26 is connected to the gas pump, and a second end of the purge gas pipe 26 faces the video monitor 144.
In this embodiment, the dryer 1 is further provided with a purge air pipe 26 and an air pump. The purge air pipe 26 and the air pump are cleaning means of the dryer 1, a first port of the purge air pipe 26 is connected to an output end of the air pump, and a second port of the purge air pipe 26 faces the video monitor 144. In the working process, the air pump compresses air into the purge gas pipe 26, and then the purge gas pipe 26 guides high-pressure air into the image acquisition assembly 14, so that dust attached to the video monitor 144 is cleaned through the high-pressure air, and the problems of unclear flame images, damage to the video monitor 144 and the like caused by dust accumulation are avoided.
As shown in fig. 3, in an embodiment of a second aspect of the present invention, there is provided a dryer control method for a dryer 1 as described in any one of the above embodiments, the dryer control method comprising:
s302, acquiring image information of the current flame, identifying the image information and acquiring form information of the current flame;
s304, comparing the current flame form information with the pre-stored flame form information;
s306, generating a corresponding control instruction according to the comparison result;
and S308, controlling the burner to work according to the control command.
In this embodiment, a dryer control method for controlling the operation of the dryer provided by the present invention is defined. In the drying process, firstly, the image information of the current flame sprayed out from the nozzle is obtained through the image acquisition assembly, and the flame form information in the image information is identified through the image processing technology. And then, comparing the current flame form information with the pre-stored flame form information to generate a comparison structure. And finally, generating a corresponding control instruction according to the comparison result, and controlling the work of the burner according to the control instruction. The pre-stored flame form information is standard flame form information in a drying process, and represents the flame form generated by the burner in a working state meeting the drying requirement. According to the invention, by acquiring the image information of the flame and comparing the current flame form with the pre-stored flame form to generate the control instruction, the dryer can take the flame image information acquired by the image acquisition assembly as a basis for judging the working condition of the current burner, so that whether the current flame can meet the drying requirement is analyzed, and if the current flame cannot meet the drying requirement, the working state of the burner is correspondingly controlled to adjust, so that the automatic regulation and control of the dryer are realized. And then promote the intelligent degree of drying-device and degree of automation, for the user brings the convenient condition, promote the technological effect of drying efficiency and stoving reliability.
In an embodiment of the present invention, further, as shown in fig. 4, the dryer control method includes:
s402, acquiring image information of the current flame, identifying the image information and acquiring form information of the current flame;
s404, determining the current maximum flame diameter according to the current flame form information, and determining the pre-stored maximum flame diameter according to the pre-stored flame form information;
s406, comparing the current maximum flame diameter with the pre-stored maximum flame diameter, and calculating the absolute value of the difference value between the current maximum flame diameter and the pre-stored maximum flame diameter;
s408, generating a corresponding control instruction according to the comparison result;
and S410, controlling the combustor to work according to the control command.
In this embodiment, the comparison process between the current flame shape information and the pre-stored flame shape information is specifically defined as follows: analyzing the current maximum flame diameter in the current flame form information through an image processing technology, and confirming the pre-stored maximum flame diameter according to the pre-stored flame form information; then, the magnitude relation between the current maximum flame diameter and the prestored maximum flame is compared, and the absolute value of the difference between the current maximum flame diameter and the prestored maximum flame diameter is calculated. Specifically, the current maximum flame diameter reflects the size of the current flame to represent the heating capacity of the current burner. The pre-stored maximum flame diameter represents the size of the standard flame generated by the burner in the case of satisfying the drying requirement. By comparing the size relationship between the current maximum flame diameter and the prestored maximum flame diameter, whether the flame generated by the current burner meets the drying requirement can be judged. If the current maximum flame diameter is smaller than the prestored maximum flame diameter, the fact that the flame generated by the current dryer cannot meet the drying requirement is proved, and the problem of incomplete drying is easily caused. Otherwise, if the current maximum flame diameter is larger than the prestored maximum flame diameter, the fact that the flame generated by the current dryer exceeds the drying requirement is proved, and the problem of excessive drying or material burning is easily caused. By calculating the absolute value of the difference between the current maximum flame diameter and the pre-stored maximum flame diameter, the controller can obtain the difference between the current flame generated by the burner and the pre-stored flame by means of the absolute value of the difference. And further, the technical effects of improving the intelligent degree of the dryer control method and improving the drying efficiency and the drying reliability are achieved.
In an embodiment of the present invention, further, as shown in fig. 5, the dryer control method includes:
s502, acquiring image information of the current flame, identifying the image information and acquiring form information of the current flame;
s504, determining the current maximum flame diameter according to the current flame form information, and determining the pre-stored maximum flame diameter according to the pre-stored flame form information;
s506, comparing the current maximum flame diameter with the pre-stored maximum flame diameter, and calculating the absolute value of the difference value between the current maximum flame diameter and the pre-stored maximum flame diameter;
and S508, controlling the burner to increase the air inlet quantity based on the fact that the current maximum flame diameter is larger than the pre-stored maximum flame diameter and the absolute value of the difference is larger than the preset threshold value.
Further, as shown in fig. 6, the dryer control method includes:
s602, acquiring image information of the current flame, identifying the image information and acquiring form information of the current flame;
s604, determining the current maximum flame diameter according to the current flame form information, and determining the pre-stored maximum flame diameter according to the pre-stored flame form information;
s606, comparing the current maximum flame diameter with the pre-stored maximum flame diameter, and calculating the absolute value of the difference value between the current maximum flame diameter and the pre-stored maximum flame diameter;
and S608, controlling the burner to reduce the air inlet amount based on the fact that the current maximum flame diameter is smaller than the pre-stored maximum flame diameter and the absolute value of the difference is larger than the preset threshold value.
In this embodiment, the step of generating the corresponding control instruction according to the comparison result is specifically defined as follows: when the comparison result shows that the current maximum flame diameter is larger than the pre-stored maximum flame diameter and the absolute value of the difference value between the current maximum flame diameter and the pre-stored maximum flame diameter is larger than the preset threshold value, the current flame sprayed out from the nozzle of the burner exceeds the drying requirement, and the problems of transitional drying and even ignition of materials and a roller easily occur. In this regard, the controller generates a control command to increase the amount of air intake to increase the amount of air flow introduced by the burner to elongate the flame without changing the amount of fuel output, the maximum diameter of the flame elongated by the air flow being correspondingly reduced to adjust the current flame configuration to the standard flame configuration. When the comparison result is that the current maximum flame diameter is smaller than the pre-stored maximum flame diameter and the absolute value of the difference value between the current maximum flame diameter and the pre-stored maximum flame diameter is larger than the preset threshold value, the current flame sprayed out from the nozzle of the burner cannot meet the drying requirement, and the problem of insufficient drying is easily caused. In this regard, the controller generates a control command to reduce the intake air amount to reduce the amount of airflow introduced by the burner, thereby shortening the flame length without changing the fuel output amount, and the diameter of the flame shortened in length is correspondingly increased to adjust the current flame profile to the standard flame profile. Therefore, automatic control of the burner is achieved, the flame generated by the burner can meet the drying requirement, the dryer control method is optimized, and the technical effect of improving the working reliability of the dryer is achieved.
In an embodiment of the present invention, further, as shown in fig. 7, the dryer control method includes:
s702, acquiring image information of the current flame, identifying the image information and acquiring form information of the current flame;
s704, determining the current maximum flame diameter according to the current flame form information, and determining the pre-stored maximum flame diameter according to the pre-stored flame form information;
s706, comparing the current maximum flame diameter with the pre-stored maximum flame diameter, and calculating the absolute value of the difference value between the current maximum flame diameter and the pre-stored maximum flame diameter;
s708, generating a corresponding control instruction according to the comparison result;
s710, controlling the combustor to work according to the control instruction;
s712, obtaining the current air intake of the burner;
and S714, generating an alarm instruction based on the condition that the current air intake reaches the maximum air intake or the minimum air intake of the combustor and the absolute value of the difference is greater than the threshold value.
In this embodiment, the controller obtains the current air intake of the burner, and when the obtained current air intake reaches the maximum air intake or the minimum air intake that can be achieved under the hardware condition of the burner, it represents that the burner cannot correspondingly adjust the maximum diameter of the flame by adjusting the size of the air intake, and then generates an alarm instruction to prompt the user to adjust in time. For example: when the absolute value of the difference value between the current maximum flame diameter and the prestored maximum flame diameter is larger than a preset threshold value and the current air intake reaches the maximum air intake, sending an alarm that the flame diameter is too large so as to prompt a user to replace a spray gun head and reduce the fuel injection angle of a combustor to further adjust the flame form; correspondingly, when the absolute value of the difference value between the current maximum flame diameter and the prestored maximum flame diameter is larger than the preset threshold value and the current air intake reaches the minimum air intake, an alarm that the flame diameter is too small is sent out to prompt a user to replace a spray gun head and reduce the fuel injection angle of the combustor so as to further adjust the flame form. Thereby in time remind the user to adjust the combustor to avoid appearing drying inadequately, material and burn out cylinder scheduling problem, and then promote the stoving effect of drying apparatus, promote the technological effect of drying apparatus security and reliability.
As shown in fig. 8, in an embodiment of the third aspect of the present invention, there is provided a dryer control system 800, the dryer control system 800 including: a memory 802, the memory 802 having a computer program stored thereon; a processor 804, the processor 804 being configured to execute a computer program to implement the dryer control method according to any of the above embodiments.
In this embodiment, a dryer control system 800 is defined that includes a memory 802 and a processor 804. The memory 802 stores thereon a computer program, and the processor 804 is configured to execute the computer program to implement the dryer control method defined in the present invention. The control method is used for controlling the dryer provided by the invention to work. In the drying process, firstly, the image information of the current flame sprayed out from the nozzle is obtained through the image acquisition assembly, and the flame form information in the image information is identified through the image processing technology. And then, comparing the current flame form information with the pre-stored flame form information to generate a comparison structure. And finally, generating a corresponding control instruction according to the comparison result, and controlling the work of the burner according to the control instruction. The pre-stored flame form information is standard flame form information in a drying process, and represents the flame form generated by the burner in a working state meeting the drying requirement. According to the invention, by acquiring the image information of the flame and comparing the current flame form with the pre-stored flame form to generate the control instruction, the dryer can take the flame image information acquired by the image acquisition assembly as a basis for judging the working condition of the current burner, so that whether the current flame can meet the drying requirement is analyzed, and if the current flame cannot meet the drying requirement, the working state of the burner is correspondingly controlled to adjust, so that the automatic regulation and control of the dryer are realized. And then promote the intelligent degree of drying-device and degree of automation, for the user brings the convenient condition, promote the technological effect of drying efficiency and stoving reliability.
An embodiment of the fourth aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the dryer control method provided in any of the above embodiments, and thus, the computer-readable storage medium includes all the advantages of the dryer control method provided in any of the above embodiments, and details are not repeated herein.
In one embodiment of the present invention, as shown in fig. 1 and 2, a video monitor 144 is installed opposite to the position where the burner 12 is installed on the drum 10, and the video monitor 144 collects video signals of the flame shape of the burner 12 from the ignition of the burner 12 until the cold aggregate starts to enter the drum 10; the signal is sent to a computer monitor of a control room through a cable, flame is processed by applying an image processing technology, and the flame can be observed and stored in real time and compared with a stored standard flame form; when the detected flame form is abnormal (the maximum diameter D exceeds the diameter of the set range), the system starts to adjust the parameters of the combustor 12 according to the set program, and corrects the flame shape; when the flame form is still beyond the standard flame form setting range after the numerical value is corrected, the reminding signal/alarm is started, and an operator can carry out maintenance or adjustment operation according to the condition, so that the damage to the roller 10 caused by the abnormal flame diameter of the burner 12 can be effectively avoided, and the safe production is ensured. The assembly side of the image acquisition assembly 14 is provided with a cleaning and purging device consisting of an air pump and a purge air pipe 26, and a switchable baffle 146 which is started and stopped as required.
In another embodiment of the present invention, as shown in fig. 9, the dryer provided by the present invention has the following working process: the burner sprays flame in the roller; collecting flame shape information of flame by a video monitor; the flame detection processing system applies an image processing technology to process flame form information to obtain the current maximum flame diameter; performing comparative analysis on the flame form information to obtain the magnitude relation between the current maximum flame diameter and the preset maximum flame diameter and the absolute value of the difference; and adjusting the parameters of the burner according to the comparison result, and giving an alarm for abnormal flame shape if the automatic adjustment limit is reached so as to prompt a user to execute manual overhaul and parameter optimization.
In still another embodiment of the present invention, as shown in fig. 1, the dryer 1 is further provided with a feeder 16 and a feeding box 18. The feed box 18 is a storage device for the material to be dried of the dryer 1. The feeder 16 is a feeding device of the dryer 1 in a feeding direction, and an input end of the feeder 16 is connected to the feeding box 18, and an output end of the feeder is connected to an end of the drum 10 opposite to the burner 12, so as to convey the material to be dried in the feeding box 18 to the drum 10 for drying. Through setting up feeding case 18 and feeder 16 rather than linking to each other, realized treating the automatic of drying material and filled, removed the manual process that adds the material from, promoted the degree of automation and the work efficiency of drying apparatus 1 on the one hand, on the other hand has reduced user's work load, has reduced the possibility that personnel's accident takes place, promotes drying apparatus 1 work efficiency, promotes the technological effect that the user used experience.
In yet another embodiment of the present invention, as shown in fig. 1, the dryer 1 is further provided with a material raiser 20, a material collector 22 and a material discharging box 24. The material raiser 20 and the material raiser 22 are set inside the barrel 10, the material raiser 22 is set near the nozzle 122 and around the nozzle 122, the material raiser 20 is set far from the nozzle 122 relative to the material raiser 22, the input of the material raiser 20 is connected to the output of the material feeder 16, and the output of the material raiser 20 is connected to the input of the material raiser 22. In the working process, the material to be dried, which is conveyed into the drum 10 by the feeder 16, is lifted and scattered under the action of the lifter 20, so that the contact area between the material to be dried and high-temperature air in the drum 10 is increased through the lifter 20, and the drying effect is enhanced. When the lifted materials are close to the nozzle 122, the lifted materials are collected into the collector 22, the materials to be dried are further dried in the collector 22 by means of flame sprayed from the nozzle 122, and the collector 22 can prevent the materials to be dried from directly contacting with the flame, so that the materials to be dried are prevented from being burnt. The safety and the reliability of the dryer 1 are improved, and the drying efficiency is improved.
In the present invention, the terms "mounting," "connecting," "fixing," and the like are used in a broad sense, for example, "connecting" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A dryer, comprising:
a drum;
the burner is provided with a nozzle, and the nozzle is positioned inside one end of the roller and faces the other end of the roller;
an image acquisition assembly configured to acquire image information of the spout-emitting flame;
and the controller is connected with the image acquisition assembly and the combustor and controls the combustor to work according to the image information.
2. The dryer of claim 1, wherein the image capturing assembly comprises:
a mounting seat;
and the video monitor is arranged on the mounting seat, and the monitoring direction of the video monitor is opposite to the spraying direction of the nozzle.
3. The dryer of claim 2, wherein the image capturing assembly further comprises:
the baffle is movably connected with the mounting seat;
when the baffle moves to the opening position, the video monitor can collect image information of flame sprayed out from the nozzle, and when the baffle moves to the closing position, the video monitor is shielded by the baffle in the monitoring direction.
4. The dryer according to claim 2 or 3, further comprising:
an air pump;
the first end of the blowing air pipe is connected with the air pump, and the second end of the blowing air pipe faces the video monitor.
5. A dryer control method for a dryer according to any one of claims 1 to 4, characterized by comprising:
acquiring image information of current flame, identifying the image information and acquiring form information of the current flame;
comparing the current flame form information with pre-stored flame form information;
generating a corresponding control instruction according to the comparison result;
and controlling the combustor to work according to the control command.
6. The dryer control method according to claim 5, wherein the step of comparing the current flame shape information with pre-stored flame shape information specifically comprises:
determining the current maximum flame diameter according to the current flame form information, and determining the pre-stored maximum flame diameter according to the pre-stored flame form information;
and comparing the current maximum flame diameter with the prestored maximum flame diameter, and calculating the absolute value of the difference value between the current maximum flame diameter and the prestored maximum flame diameter.
7. The dryer control method according to claim 6, wherein the corresponding control instruction is generated according to the comparison result; the step of controlling the operation of the burner according to the control command specifically comprises:
controlling the combustor to increase the air inlet quantity based on the fact that the current maximum flame diameter is larger than the pre-stored maximum flame diameter and the absolute value of the difference is larger than a preset threshold value;
and controlling the burner to reduce the air intake based on that the current maximum flame diameter is smaller than the pre-stored maximum flame diameter and the absolute value of the difference is larger than a preset threshold value.
8. The dryer control method of claim 7, further comprising:
acquiring the current air intake of the burner;
and generating an alarm instruction based on the condition that the current air intake reaches the maximum air intake or the minimum air intake of the combustor and the absolute value of the difference is greater than the threshold value.
9. A dryer control system, comprising:
a memory having a computer program stored thereon;
a processor configured to execute the computer program to implement the dryer control method of any one of claims 5 to 8.
10. A computer-readable storage medium on which a computer program is stored, the computer program, when being executed by a processor, implementing the dryer control method according to any one of claims 5 to 8.
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| CN201911049922.0A CN110701899A (en) | 2019-10-31 | 2019-10-31 | Dryer, dryer control method and system, and computer-readable storage medium |
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