CN115560576B - Dryer and control method thereof - Google Patents
Dryer and control method thereof Download PDFInfo
- Publication number
- CN115560576B CN115560576B CN202211214054.9A CN202211214054A CN115560576B CN 115560576 B CN115560576 B CN 115560576B CN 202211214054 A CN202211214054 A CN 202211214054A CN 115560576 B CN115560576 B CN 115560576B
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- heating assembly
- standby
- main heating
- control method
- shell
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 172
- 230000007246 mechanism Effects 0.000 claims abstract description 43
- 230000000712 assembly Effects 0.000 claims abstract description 6
- 238000000429 assembly Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 21
- 230000009471 action Effects 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 230000005856 abnormality Effects 0.000 claims 1
- 230000003213 activating effect Effects 0.000 claims 1
- 238000001035 drying Methods 0.000 description 20
- 238000005457 optimization Methods 0.000 description 10
- 238000005485 electric heating Methods 0.000 description 9
- 241000208125 Nicotiana Species 0.000 description 6
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 6
- 230000007723 transport mechanism Effects 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/02—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces
- F26B17/04—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the belts being all horizontal or slightly inclined
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/04—Heating arrangements using electric heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/02—Applications of driving mechanisms, not covered by another subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to a dryer and a method thereof, comprising a shell and a heating assembly, wherein the heating assembly comprises a main heating assembly and at least one group of standby heating assemblies, the standby heating assemblies are connected with the active heating assembly through a conveying and transporting mechanism and are used for being transported to a working area through the conveying and transporting mechanism under the condition that the main heating assembly cannot normally operate; meanwhile, the circuit can be cut off in time when the main heating assembly breaks down through the design control system, so that serious electrical safety is avoided.
Description
Technical Field
The invention relates to the technical field of drying equipment, in particular to a dryer and a control method thereof.
Background
With the formulation of the national carbon neutralization and the like, the heat pump dryer can gradually replace the traditional coal-fired dryer in the field of drying in the future. However, there is a general problem in heat pump drying after sales, for example, because the dryer is generally provided with an electric heating assembly due to its compact structure, and the unit is protected from being stopped when the electric heating assembly is in a failure state. Taking tobacco drying as an example, because tobacco drying has a periodicity that the drying cannot be interrupted for a designated time (for example, 13 days), if a stop occurs within the designated time, the goods on the client side are damaged because the drying cannot be continued. And if the failure of the electric heating assembly is not processed rapidly, the electric heating assembly can be damaged and deformed or the unit catches fire, and even the electric safety problems such as personal injury and the like can be caused.
Therefore, how to protect the electric heating assembly in time under the fault condition and prevent the goods to be dried from being damaged is a problem to be solved in the industry.
Disclosure of Invention
The invention provides a dryer and a control system thereof, which are used for timely replacing a standby heating assembly when a main heating assembly in the dryer fails so as to reduce property loss caused by drying equipment problems.
The invention provides a dryer, comprising a shell and a heating assembly, wherein the heating assembly comprises a main heating assembly and at least one group of standby heating assemblies; the standby heating component is connected with the active heating component through a conveying and transporting mechanism and is used for being transported to a working area through the conveying and transporting mechanism under the condition that the main heating component cannot normally operate.
According to further optimization of the technical scheme, a horizontal power device is arranged between the standby heating assembly and the shell, and the horizontal power device is used for adjusting the standby heating assembly and the main heating assembly to the same plane.
According to further optimization of the technical scheme, the horizontal power device comprises a traction motor and a linkage chain, wherein the linkage chain is connected with the standby heating assembly and the shell through gears respectively and is used for pulling the standby heating assembly from a vertical state to a horizontal state under the action of the traction motor.
According to further optimization of the technical scheme, the horizontal power device is a power cylinder, one end of the power cylinder is connected to the shell in a shaft mode, and the other end of the power cylinder is hinged to the fixing frame of the standby heating assembly.
According to further optimization of the technical scheme, the main heating component is arranged inside the shell, and the standby heating component is arranged outside the shell.
According to further optimization of the technical scheme, the shell is provided with the sealing door for the standby heating assembly to enter the shell, and the sealing door is arranged between the main heating assembly and the standby heating assembly.
According to further optimization of the technical scheme, the sealing door comprises a door plate and a control mechanism, and the control mechanism is used for controlling the door plate to be opened or closed.
According to further optimization of the technical scheme, a sealing piece is arranged between the door plate and the shell.
According to the technical scheme, the sealing door is arranged in the shell through the lifting mechanism.
According to further optimization of the technical scheme, the main heating assembly and the standby heating assembly are arranged on a transmission conveying mechanism, and the transmission conveying mechanism is used for conveying the standby heating assembly to a working position.
According to further optimization of the technical scheme, the transmission conveying mechanism comprises a power roller and a driven roller, the power roller and the driven roller are arranged in parallel, a conveying channel is arranged between the power roller and the driven roller, and the main heating component and the standby heating component are both arranged in the conveying channel.
According to the technical scheme, when the transmission conveying mechanism with the standby heating component arranged outside the shell is in a horizontal state, the conveying channel of the transmission conveying mechanism is communicated with the conveying channel of the transmission conveying mechanism with the main heating component arranged inside the shell.
A control method of a dryer, comprising the steps of:
s1, detecting whether the main heating assembly works normally or not;
s2, under the condition that the main heating assembly works abnormally, the controller is used for controlling the power supply of the main heating assembly to be disconnected, and the standby heating assembly is started to perform heating work.
According to the technical scheme, the intelligent heating system comprises a temperature sensor, the temperature of a working area of the main heating assembly is monitored in real time through the temperature sensor in the step S1 and fed back to the controller, and if the controller detects that the temperature continuously changes under the condition that the main heating assembly is not controlled, the working is abnormal, and the step S2 is entered.
According to the technical scheme, the main heating assembly is further optimized, and the main heating assembly further comprises a release, when the abnormal operation of the main heating assembly is detected in the step S2, the power supply of the main heating assembly is disconnected through the release.
According to the technical scheme, the method S21 of starting the standby heating assembly by the controller is that the transmission conveying mechanism provided with the standby heating assembly is controlled by the controller to convey the standby heating assembly to a working area, specifically, a conveying channel of the transmission conveying mechanism provided with the standby heating assembly is communicated with a conveying channel of the transmission conveying mechanism provided with the main heating assembly, and the standby heating assembly is led to enter the working area by controlling the work of the conveying channel.
A dryer control system comprising a controller and the dryer described above, wherein the controller comprises a temperature sensor, a release and a main control board which are electrically connected with each other, and the temperature sensor is arranged on the main heating component and used for detecting the temperature of the main heating component; the release is connected with an input line of the main heating component and used for cutting off a control circuit of the main heating component; the main control board is electrically connected with the horizontal power device of the dryer, the control mechanism of the sealing door and the transmission conveying mechanism respectively.
According to further optimization of the technical scheme, the release is a thermomagnetic release.
Compared with the prior art, the invention has the advantages that the standby heating component and the matched transmission conveying system are arranged, so that the standby heating component can be replaced in time when the main heating component of the dryer fails, the working sustainability of the dryer is ensured, and the linkage loss of the dried product caused by the equipment failure is avoided; meanwhile, the circuit can be cut off in time when the main heating assembly breaks down through the design control system, so that serious electrical safety is avoided.
Drawings
The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings.
Fig. 1 is a schematic view showing the overall structure of a dryer according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a transmission transporting device in an embodiment of the present invention.
Reference numerals:
1-a housing; 2-a main heating assembly; 3-a backup heating assembly; 4-a door plate; 5-a transmission conveying mechanism; 51-a power roller; 52-driven roller; 6-linkage chain; 7-traction motor.
Detailed Description
The invention will be further described with reference to fig. 1-2.
According to the technical scheme, the drying machine can continuously and uninterruptedly carry out drying work, after the main heating component 2 fails, the standby heating component 3 can be replaced timely, and the power supply of the main heating component 2 is disconnected, so that the occurrence of electric safety accidents can be avoided while the drying work is not influenced, and particularly in the tobacco drying industry, because general tobacco drying is divided into three stages: a yellowing stage, a color fixing stage and a tendon drying stage. Respectively corresponding to a baking time period (h) of 0<t 1 ≤70，70<t 2 ≤105，105<t 3 And less than or equal to 140, the heating time is longer in a staged manner, and the heating process cannot be interrupted, otherwise, the quality of tobacco is affected. When the electric heating fails, if the electric heating is stopped at a knife and then the customer goods are damaged, but the electric heating assembly is burnt and deformed due to the fact that the electric heating assembly is not maintained in time, the unit or the customer goods are on fire, and the accident is serious, the technical scheme of the invention designs the dryer which is shown in the figure 1 and comprises a shell 1 and a heating assembly, wherein the heating assembly comprises a main heating assembly 2 and at least one group of standby heating assemblies 3, and the standby heating assemblies 3 are used for drying under the condition that the main heating assembly 2 cannot normally operate.
In order to prevent the main heating assembly 2 and the backup heating assembly 3 from affecting each other, it is preferable that the main heating assembly 2 is disposed inside the housing 1, and the backup heating assembly 3 is disposed outside the housing 1. And reserve heating element 3 is through the perpendicular articulated outside of mount 1, just reserve heating element 3 with be provided with horizontal power device between the casing 1, horizontal power device is used for with reserve heating element 3 is round the articulated shaft of mount changes the horizontality from the vertical state, and this design is at the normal work spare heating element 3 not occupy too much working space. Because the dryer operates in the airtight drying cavity, the shell 1 is provided with a sealing door for the standby heating component 3 to enter the inside of the shell, and the sealing door is arranged between the main heating component 2 and the standby heating component 3. When the main heating component 2 works normally, the sealing door is in a closed state, and after the main heating component 2 fails, the sealing door is opened to enable the main heating component 2 and the standby heating component 3 to transport the standby heating component 3 to the inside of the dryer for working under the action of the transmission transport mechanism 5.
The sealing door in the specific technical scheme comprises a door plate 4 and a control mechanism, wherein the control mechanism is used for controlling the door plate 4 to be opened or closed, and a sealing piece is arranged between the door plate 4 and the shell 1, so that heat loss can not occur during normal operation. In addition, the sealing door is arranged in the shell 1 through a lifting mechanism, and the lifting mechanism is a lifting cylinder. Thus, the operation can be conveniently performed when the main heating assembly 2 and the standby heating assembly 3 are exchanged, and the lifting cylinder can be connected with the PLC to realize intelligent control.
Since the spare heating assembly 3 is vertically arranged for saving space, for better realizing the replacement of the spare heating assembly 3, the horizontal power device comprises a traction motor 7 and a linkage chain 6, wherein the linkage chain 6 is respectively connected with the spare heating assembly 3 and the shell 1 through gears, and is used for pulling the spare heating assembly 3 from a vertical state to a horizontal state under the action of the traction motor 7.
According to another embodiment of the horizontal power device, the horizontal power device is a power cylinder, one end of the power cylinder is connected with the shell 1 in a shaft mode (namely, the power cylinder is rotatably arranged on the shell through a rotating shaft), the other end of the power cylinder is hinged to a fixing frame of the standby heating component 3, and when the power cylinder is started, the standby heating component 3 can be changed into a horizontal state from a vertical state only by controlling the power cylinder to work.
In the technical scheme of the invention, under the normal working state, the main heating component 2 and the standby heating component 3 are separated, and synchronous linkage of the main heating component 2 and the standby heating component 3 is realized when the main heating component 2 fails, so that the main heating component 2 and the standby heating component 3 are both arranged on the transmission conveying mechanism 5, the transmission conveying mechanism 5 comprises a power roller 51 and a driven roller 52, the power roller 51 and the driven roller 52 are mutually arranged in parallel, a conveying channel is arranged between the power roller 51 and the driven roller 52, and the main heating component 2 and the standby heating component 3 are both arranged in the conveying channel. When the transmission transport mechanism 5 of the standby heating assembly 3 is arranged outside the shell 1 and is in a horizontal state, a transport channel of the transmission transport mechanism 5 is communicated with a transport channel of the transmission transport mechanism 5 of the main heating assembly 2 arranged inside the shell 1, particularly when the active heating assembly fails, the door plate 4 of the sealing door is opened, the standby heating assembly 3 is changed into a horizontal state from a vertical state under the action of a horizontal power device when the door plate 4 is opened, when the door plate 4 is completely opened, the transmission transport mechanism 5 on the active heating assembly is in butt joint with the transmission transport mechanism 5 on the standby heating assembly 3, and the two transport channels are communicated, so that the main heating assembly 2 is transferred to the upper space of the dryer under the action of the power roller 51, and the standby heating assembly 3 enters the position of the main heating assembly 2 to work.
The technical scheme of the invention also comprises a control system of the dryer, and the control system is particularly composed of a controller and the dryer, wherein the controller comprises a temperature sensor, a release and a main control board which are electrically connected with each other, and the temperature sensor is arranged on the main heating component 2 and used for detecting the temperature of the main heating component 2 and feeding back to the main control board in real time; the release is connected with an input line of the main heating component 2 and is used for enabling the temperature of the main heating component 2 to reach a preset value; the main control board is respectively and electrically connected with a horizontal power device of the dryer, a control mechanism of the sealing door and the transmission conveying mechanism 5, and the tripping device is preferably a thermomagnetic tripping device.
The working method of the specific control system is as follows: the main control board receives temperature information at the position of the main heating component 2 in real time through the temperature sensor, when the temperature in the main heating component 2 is detected to be abnormal, the temperature information is detected again through adjusting the drying temperature, whether the main heating component 2 is in a fault state is determined, after the drying temperature of the dryer is adjusted, the received temperature information is not changed and even is rising, the main heating component 2 is judged to be in a fault state, the release is started to disconnect the power supply of the main heating component 2, meanwhile, the horizontal power device and the sealing door control mechanism are controlled by the controller to be started, the door plate 4 of the sealing door is opened, the standby heating component 3 is changed into a horizontal state on the same straight line with the main heating component 2 from a vertical state, then the power roller 51 of the transmission conveying mechanism 5 is started again, under the action of the power roller 51, the heating component arranged on the conveying channel is moved, therefore, the active heating component is transferred to a preset position, the standby heating component 3 is conveyed to a working position, the standby heating component 3 is started to perform normal drying work, intelligent control of the controller can be realized, and the quality of tobacco in drying cannot be influenced due to the fault of the heating component.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (15)
1. A control method of a dryer, comprising the steps of:
s1, detecting whether the main heating assembly works normally or not;
s2, under the condition that the main heating assembly works abnormally, the controller is used for controlling the power supply of the main heating assembly to be disconnected, and the standby heating assembly is started to perform heating work;
for a dryer comprising a housing and a heating assembly, wherein the heating assembly comprises a main heating assembly and at least one set of backup heating assemblies; the standby heating assembly is connected with the main heating assembly through a conveying and transporting mechanism and is used for being transported to a working area through the conveying and transporting mechanism under the condition that the main heating assembly cannot normally operate.
2. The control method according to claim 1, characterized in that: a horizontal power device is arranged between the standby heating component and the shell and used for adjusting the standby heating component and the main heating component to the same plane.
3. The control method according to claim 2, characterized in that: the horizontal power device comprises a traction motor and a linkage chain, wherein the linkage chain is connected with the standby heating assembly and the shell through gears respectively and is used for pulling the standby heating assembly from a vertical state to a horizontal state under the action of the traction motor.
4. The control method according to claim 2, characterized in that: the horizontal power device is a power cylinder, one end of the power cylinder is connected to the shell in a shaft mode, and the other end of the power cylinder is hinged to the fixing frame of the standby heating assembly.
5. The control method according to claim 1, characterized in that: the main heating assembly is arranged inside the shell, and the standby heating assembly is arranged outside the shell.
6. The control method according to claim 5, characterized in that: the shell is provided with a sealing door for the spare heating assembly to enter the shell, and the sealing door is arranged between the main heating assembly and the spare heating assembly.
7. The control method according to claim 6, characterized in that: the sealing door comprises a door plate and a control mechanism, wherein the control mechanism is used for controlling the door plate to open or close.
8. The control method according to claim 7, characterized in that: a seal is disposed between the door panel and the housing.
9. The control method according to claim 8, characterized in that: the sealing door is arranged in the shell through a lifting mechanism.
10. The control method according to any one of claims 2 to 8, characterized in that: the main heating assembly and the standby heating assembly are both arranged on a transmission conveying mechanism, and the transmission conveying mechanism is used for conveying the standby heating assembly to a working position.
11. The control method according to claim 9, characterized in that: the transmission conveying mechanism comprises a power roller and a driven roller, the power roller and the driven roller are arranged in parallel, a conveying channel is arranged between the power roller and the driven roller, and the main heating assembly and the standby heating assembly are all arranged in the conveying channel.
12. The control method according to claim 11, characterized in that: when the transmission conveying mechanism with the standby heating component arranged outside the shell is in a horizontal state, a conveying channel of the transmission conveying mechanism is communicated with a conveying channel of the transmission conveying mechanism with the main heating component arranged inside the shell.
13. The method according to claim 1, comprising a temperature sensor, wherein the temperature of the main heating assembly working area is monitored in real time by the temperature sensor in step S1, and fed back to the controller, and if the controller detects that the temperature continuously changes without the main heating assembly being controlled, it is determined that the operation is abnormal, and the process proceeds to step S2.
14. The control method of a dryer of claim 1, further comprising a trip through which the power of the main heating assembly is turned off when the operation abnormality of the main heating assembly is detected in step S2.
15. The method for controlling a dryer according to claim 1, wherein the method S21 of the controller activating the backup heating assembly is to control a driving transportation mechanism provided with the backup heating assembly to transport the backup heating assembly to a work area by the controller, specifically, a transportation channel of the driving transportation mechanism provided with the backup heating assembly is communicated with a transportation channel of the driving transportation mechanism provided with the main heating assembly, and the backup heating assembly is moved to the work area by controlling the operation of the transportation channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211214054.9A CN115560576B (en) | 2022-09-30 | 2022-09-30 | Dryer and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211214054.9A CN115560576B (en) | 2022-09-30 | 2022-09-30 | Dryer and control method thereof |
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| Publication Number | Publication Date |
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| CN115560576A CN115560576A (en) | 2023-01-03 |
| CN115560576B true CN115560576B (en) | 2024-03-15 |
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| CN202211214054.9A Active CN115560576B (en) | 2022-09-30 | 2022-09-30 | Dryer and control method thereof |
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| Publication number | Publication date |
|---|---|
| CN115560576A (en) | 2023-01-03 |
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