CN209926730U - Control system of drying machine and vacuum drying machine - Google Patents
Control system of drying machine and vacuum drying machine Download PDFInfo
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- CN209926730U CN209926730U CN201920692071.0U CN201920692071U CN209926730U CN 209926730 U CN209926730 U CN 209926730U CN 201920692071 U CN201920692071 U CN 201920692071U CN 209926730 U CN209926730 U CN 209926730U
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Abstract
The utility model discloses a control system and vacuum drying machine of desiccator, desiccator include the desiccator jar body and vacuum pump, vacuum pump and the intercommunication of the desiccator jar body, an installation filter equipment on the pipeline of its intercommunication, control system includes: a main controller; the differential pressure transmitter is arranged on the filtering device and is connected with the main controller; the back blowing device is communicated with the filtering device and is connected with the main controller, and the back blowing device is used for dredging the filtering device when the filtering device is blocked; and the vacuum pump inlet valve is installed on a pipeline for communicating the vacuum pump with the filtering device, and the vacuum pump inlet valve and the vacuum pump are both connected with the main controller. This control system and vacuum drying machine can carry out real time monitoring to filter equipment whether putty to usable blowback device dredges the clearance to filter equipment, effectively improves vacuum drying machine's production efficiency.
Description
Technical Field
The utility model relates to a lithium ion battery cathode material produces technical field, particularly, relates to a control system and have this control system's vacuum drying machine suitable for wet process production lithium ion battery cathode material's desiccator.
Background
At present, in the wet production process of the lithium battery anode material, a control system of a vacuum drier using steam heating can only carry out independent automatic control on various parameters such as drying temperature, vacuum degree and humidity of drier equipment, and cannot realize the integral automatic control on various parameters.
Patent document 201520948641.X discloses a vacuum drying equipment single chip microcomputer control system, which respectively collects temperature and pressure parameters in vacuum drying equipment through a pressure sensor and a temperature sensor, transmits the temperature and pressure parameters to a single chip microcomputer processor, processes the collected temperature and pressure parameters through the single chip microcomputer processor, and then controls a heater, an alarm lamp, a cooling fan, a vacuum pump, a deflation valve and the like, so that the automatic control of the temperature and the pressure in the vacuum drying equipment is realized.
Foretell vacuum drying equipment single chip microcomputer control system can only carry out automatic control to the temperature and the pressure in the vacuum drying equipment, can't monitor filter equipment (install on the communicating pipe between the desiccator jar body and the evacuating device) whether putty, also can't dredge the clearance to filter equipment. Because the lithium electricity material is small, cause inside filter equipment putty easily in drying process, also can not see whether putty behind the filter equipment putty moreover, only have not reached anticipated drying effect after long-time drying, just can judge filter equipment putty, influence drying effect and production efficiency. In addition, the single chip microcomputer control system of the vacuum drying equipment cannot control feeding, discharging, stirring rotating speed and dew point temperature at the same time.
SUMMERY OF THE UTILITY MODEL
A primary object of the utility model is to provide a control system and vacuum drying machine of desiccator to solve at least the unable real time monitoring filter equipment blockage among the prior art, can't carry out the problem of mediation when filter equipment blockage.
In order to achieve the above object, according to the utility model discloses an aspect provides a control system of desiccator, and the desiccator includes the desiccator jar body and vacuum pump, and vacuum pump and the intercommunication of the desiccator jar body, an installation filter equipment on the pipeline of vacuum pump and the intercommunication of the desiccator jar body, control system includes: a main controller; the pressure difference transmitter is arranged on the filtering device and connected with the main controller, and is used for acquiring pressure difference information of the front side and the rear side of the filtering device and transmitting the pressure difference information to the main controller; the back blowing device is communicated with the filtering device and is connected with the main controller, and the back blowing device is used for dredging the filtering device when the filtering device is blocked; and the vacuum pump inlet valve is installed on a pipeline for communicating the vacuum pump with the filtering device, and the vacuum pump inlet valve and the vacuum pump are both connected with the main controller.
Further, the control system further comprises: the temperature sensor is arranged on the dryer tank body and connected with the main controller, and the temperature sensor is used for acquiring temperature information in the dryer tank body and transmitting the temperature information to the main controller; the heating steam regulating valve is installed on a heating steam inlet pipe of the dryer tank body, the heating steam regulating valve is connected with the main controller, and the heating steam regulating valve is used for regulating the amount of heating steam entering the dryer tank body according to temperature information.
Further, the control system further comprises: the pressure sensor is installed on the dryer tank body, connected with the main controller, connected with the vacuum pump, and used for acquiring vacuum degree information in the dryer tank body and transmitting the vacuum degree information to the main controller.
Further, the control system further comprises: the dryer feed valve is arranged on a feed pipe of the dryer and is connected with the main controller; and the outlet valve of the dryer is arranged on the discharge pipe of the dryer, and is connected with the main controller.
Further, the stirring motor of the dryer is connected with the main controller.
Further, the control system further comprises: the humidity sensor is installed on the dryer tank body and connected with the main controller, and the humidity sensor is used for acquiring air humidity information in the dryer tank body and transmitting the air humidity information to the main controller.
Further, the control system further comprises: the dew point sensor is installed on the dryer tank body and connected with the main controller, and the dew point sensor is used for acquiring dew point temperature information in the dryer tank body and transmitting the dew point temperature information to the main controller.
According to the utility model discloses an on the other hand provides a vacuum drying machine, and this vacuum drying machine includes the desiccator jar body, installs agitator motor on the desiccator jar body, and the desiccator jar body passes through a tube coupling vacuum pump, installs a filter equipment on the pipeline of vacuum pump and the desiccator jar body intercommunication, connects heating steam intake pipe, inlet pipe and discharging pipe on the desiccator jar body, still is equipped with foretell control system on the vacuum drying machine.
Use the technical scheme of the utility model, acquire the pressure differential information of filter equipment front and back both sides in real time through the pressure differential changer to convey this pressure differential information to main control unit, when filter equipment takes place the putty, close vacuum pump and vacuum pump import valve by main control unit control, start blowback device and dredge the clearance to filter equipment. This control system and vacuum drying machine can carry out real time monitoring to filter equipment whether putty to usable blowback device dredges the clearance to filter equipment, has effectively improved vacuum drying machine's production efficiency.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a connection block diagram of a control system according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a vacuum dryer according to an embodiment of the present invention.
Fig. 3 is a diagram of digital input wiring of the main controller in the control system according to the embodiment of the present invention.
Fig. 4 is an analog input wiring diagram of the main controller in the control system according to the embodiment of the present invention.
Fig. 5 is a digital output wiring diagram of the main controller in the control system according to the embodiment of the present invention.
Fig. 6 is an analog output wiring diagram of the main controller in the control system according to the embodiment of the present invention.
Wherein the figures include the following reference numerals:
10. a main controller; 20. a differential pressure transmitter; 30. a back flushing device; 40. an inlet valve of a vacuum pump; 50. a temperature sensor; 60. a heating steam regulating valve; 70. a pressure sensor; 80. a dryer feed valve; 90. an outlet valve of the dryer; 100. a humidity sensor; 110. a dew point sensor; 200. a dryer tank body; 210. a vacuum pump; 220. a filtration device; 230. heating a steam inlet pipe; 240. a feed pipe; 250. a discharge pipe; 260. a stirring motor.
Detailed Description
To facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the specific embodiments described below. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather the intention is merely to facilitate a distinction between corresponding parts. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.
Example 1
Referring to fig. 1 to 6, a control system of a drying machine according to an embodiment of the present invention, the drying machine is mainly used for vacuum drying of lithium ion battery materials. The dryer mainly comprises a dryer tank 200, a vacuum pump 210, a filtering device 220, a heating steam inlet pipe 230, a feeding pipe 240, a discharging pipe 250 and a stirring motor 260. The vacuum pump 210 is communicated with the dryer tank 200, the filtering device 220 is installed on a pipeline through which the vacuum pump 210 is communicated with the dryer tank 200, and the filtering device 220 is mainly used for blocking materials and preventing the materials in the dryer tank 200 from being pumped out during vacuumizing.
The control system comprises a main controller 10, a differential pressure transmitter 20, a back-blowing device 30 and a vacuum pump inlet valve 40. The pressure difference transmitter 20 is installed on the filtering device 220, the pressure difference transmitter 20 is connected with the main controller 10, and the pressure difference transmitter 20 is used for acquiring pressure difference information of the front side and the rear side of the filtering device 220 and transmitting the pressure difference information to the main controller 10; the back blowing device 30 is communicated with the filtering device 220, the back blowing device 30 is connected with the main controller 10, and the back blowing device 30 is used for dredging the filtering device 220 when the filtering device 220 is blocked; and a vacuum pump inlet valve 40 installed on a pipeline through which the vacuum pump 210 communicates with the filtering device 220, wherein the vacuum pump inlet valve 40 and the vacuum pump 210 are both connected with the main controller 10.
In the control system of the drying machine, the pressure difference information of the front side and the rear side of the filtering device 220 is obtained in real time through the pressure difference transmitter 20, the pressure difference information is transmitted to the main controller 10, when the filtering device 220 is blocked, the main controller 10 controls the vacuum pump 210 and the vacuum pump inlet valve 40 to be closed, and the back flushing device 30 is started to dredge and clean the filtering device 220. This control system can carry out real time monitoring to filter equipment 220 whether putty to usable blowback device 30 dredges the clearance to filter equipment 220, has effectively improved vacuum drying machine's production efficiency.
Specifically, in this embodiment, the back-blowing device 30 may adopt an independent peripheral pulse back-blowing device connected to the filtering device 220, or may adopt the filtering device 220 with a pulse back-blowing function, such as an existing pulse back-blowing bag-type dust collector.
Optionally, the main controller 10 may further be connected to an alarm (not shown in the figure), when the pressure difference between the front side and the rear side of the filtering apparatus 220 reaches the dismantling setting value, the main controller 10 determines that the filtering apparatus 220 is seriously blocked, and sends out alarm information through the alarm to prompt an operator to dismantle the machine and clear up the blocked material.
To facilitate automatic monitoring and control of the temperature within the dryer, referring to fig. 1 and 2, in this embodiment the control system further includes a temperature sensor 50 and a heating steam regulating valve 60. Wherein, the temperature sensor 50 is installed on the dryer tank 200, the temperature sensor 50 is connected with the main controller 10, and the temperature sensor 50 is used for collecting the temperature information in the dryer tank 200 and transmitting the temperature information to the main controller 10. The heating steam regulating valve 60 is installed on a heating steam inlet pipe 230 of the dryer tank body 200, and the heating steam inlet pipe 230 is communicated with a heating interlayer on the periphery of the dryer tank body 200 and is used for introducing steam into the heating interlayer to heat the material in the dryer tank body 200. The heating steam adjusting valve 60 is connected to the main controller 10, and the heating steam adjusting valve 60 is used to adjust the amount of heating steam introduced into the dryer can 200 according to the collected temperature information in the dryer can 200.
By arranging the temperature sensor 50 and the heating steam regulating valve 60, the temperature sensor 50 collects temperature information in the dryer tank 200 and transmits the temperature information to the main controller 10, the main controller 10 performs single-loop PID operation on the temperature value and a preset target temperature value through a PID control module (not shown in the figure), and when the temperature in the dryer tank 200 exceeds the set target temperature, the opening degree of the heating steam regulating valve 60 on the heating steam inlet pipe 230 is reduced, so that the flow of steam entering a heating interlayer is reduced, and the automatic control of the temperature in the dryer tank 200 is realized.
In order to control the vacuum degree in the dryer tank 200, referring to fig. 1 and 2, in this embodiment, the control system further includes a pressure sensor 70, the pressure sensor 70 is mounted on the dryer tank 200, the pressure sensor 70 is connected with the main controller 10, and the main controller 10 is connected with the vacuum pump 210.
The pressure sensor 70 is used for collecting vacuum degree information in the dryer tank 200 and transmitting the vacuum degree information to the main controller 10, the main controller 10 performs single-loop PID operation on the vacuum degree value and a preset target vacuum degree through a PID control module, and then automatically controls the rotating speed of the vacuum pump 210 through a PID operation result, so that the aim of automatically controlling the vacuum degree in the dryer tank 200 is fulfilled. By controlling the vacuum degree, an optimal control point with proper vacuum pumping strength and short drying time can be achieved.
To achieve automatic feed and discharge control of the dryer, referring to fig. 1 and 2, in this embodiment the control system further includes a dryer feed valve 80 and a dryer exit valve 90. Wherein, the dryer feed valve 80 is installed on the feed pipe 240 of the dryer, and the dryer feed valve 80 is connected with the main controller 10; the dryer outlet valve 90 is installed on the dryer discharging pipe 250, and the dryer outlet valve 90 is connected with the main controller 10; the stirring motor 260 of the dryer is connected to the main controller 10. When the dryer needs to feed, the main controller 10 controls to open the dryer feed valve 80 and the stirring motor 260 and close the dryer outlet valve 90, and controls the rotating speed of the stirring motor 260 to be the blanking stirring rotating speed; when the feeding is finished, the main controller 10 controls to close the dryer feeding valve 80, and simultaneously adjusts the rotating speed of the stirring motor 260 to the stirring rotating speed during the drying operation; when the drying is completed, the main controller 10 controls to close the heating steam regulating valve 60 and open the dryer outlet valve 90 for discharging. Therefore, the automatic control of the feeding and discharging of the dryer and the rotating speed of the stirring motor 260 can be realized.
Further, in order to realize the automatic judgment whether the drying process of the dryer is completed, referring to fig. 1 and 2, in the present embodiment, the control system further includes a humidity sensor 100. The humidity sensor 100 is installed on the dryer can 200, and the humidity sensor 100 is connected to the main controller 10. The humidity sensor 100 is used for collecting air humidity information in the dryer tank 200 and transmitting the air humidity information to the main controller 10. Whether the expected drying effect is achieved is judged by detecting the humidity in the dryer tank 200. When the humidity in the dryer tank 200 reaches a preset humidity value, the main controller 10 controls to close the heating steam regulating valve 60 and open the dryer outlet valve 90 for discharging.
Referring to fig. 1 and 2, in the present embodiment, the control system further includes a dew point sensor 110, the dew point sensor 110 is mounted on the dryer tank 200, and the dew point sensor 110 is connected to the main controller 10. The dew point sensor 110 is configured to collect dew point temperature information in the dryer tank 200, and transmit the dew point temperature information to the main controller 10, so as to obtain the dew point temperature in the dryer tank 200 in real time.
Specifically, in the present embodiment, the main controller 10 may employ a CPU module and an input/output module of an intelligent siemens 300 series PLC; the touch screen with high resolution is combined, and parameter information such as temperature, vacuum degree, humidity, dew point temperature and the like can be displayed on the screen in real time.
Generally, through adopting the control system of this embodiment, can realize the automatic control to temperature, pressure, the putty condition of filter equipment 220, business turn over material and agitator motor 260 rotational speed in the desiccator to can dredge automatically filter equipment 220, realized the automatic control to the wholeness of each parameter of desiccator, improve production efficiency, reduce artifical intensity of labour, practice thrift manufacturing cost.
Example 2
Referring to fig. 2, one kind the utility model discloses a vacuum drying machine, this vacuum drying machine includes the desiccator jar body 200, install agitator motor 260 on the desiccator jar body 200, the desiccator jar body 200 passes through a pipe connection vacuum pump 210, install a filter equipment 220 on the pipeline of this vacuum pump 210 and the desiccator jar body 200 intercommunication, be connected with heating steam intake pipe 230 on the desiccator jar body 200, this heating steam intake pipe 230 and the outlying heating intermediate layer intercommunication of the desiccator jar body 200, the top of the desiccator jar body 200 is equipped with inlet pipe 240, the bottom of the desiccator jar body 200 is equipped with discharging pipe 250. The vacuum dryer is also provided with a control system, and the control system has the same structure as that of the control system of the embodiment 1.
The vacuum dryer can realize automatic control of temperature, pressure, material blocking condition of the filtering device 220, feeding and discharging and rotating speed of the stirring motor 260 in the dryer by adopting the control system of the embodiment 1, can automatically dredge the filtering device 220, realizes automatic control of integrity of each parameter of the dryer, improves production efficiency, reduces labor intensity and saves production cost.
The vacuum dryer of the embodiment is used for drying the lithium ion battery, so that at least one workshop operator can be reduced, the labor intensity of workers is reduced, the workers do not need to stare at the dryer in real time in the use process of the dryer, the human error is reduced, each drying parameter and time are reasonably controlled, and the product quality can be better stabilized.
Practical application shows that the product quality of a workshop using the vacuum drying machine for three months is improved by more than 0.5 percent; the productivity is greatly improved, and the drying time is shortened to 3 and a half hours from the original 4 hours. The product is calculated according to 50 ten thousand per ton, the quality is improved by 0.5%, the drying time is shortened to 3 half an hour (1.143 times), the original production energy of each device is 150 tons per month, the calculation is carried out according to 5000 months of saving 1 manual work and manual wages, the annual cost is about 520 ten thousand yuan, and the economic benefit is remarkable.
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 (8)
1. A control system of a dryer, the dryer comprising a dryer tank (200) and a vacuum pump (210), the vacuum pump (210) being in communication with the dryer tank (200), a filter device (220) being mounted on a conduit of the vacuum pump (210) in communication with the dryer tank (200), the control system comprising:
a main controller (10);
the pressure difference transmitter (20) is installed on the filtering device (220), the pressure difference transmitter (20) is connected with the main controller (10), and the pressure difference transmitter (20) is used for acquiring pressure difference information of the front side and the rear side of the filtering device (220) and transmitting the pressure difference information to the main controller (10);
the back blowing device (30) is communicated with the filtering device (220), the back blowing device (30) is connected with the main controller (10), and the back blowing device (30) is used for dredging the filtering device (220) when the filtering device (220) is blocked;
and the vacuum pump inlet valve (40) is arranged on a pipeline for communicating the vacuum pump (210) and the filtering device (220), and the vacuum pump inlet valve (40) and the vacuum pump (210) are both connected with the main controller (10).
2. The control system of a dryer of claim 1, further comprising:
the temperature sensor (50) is installed on the dryer tank body (200), the temperature sensor (50) is connected with the main controller (10), and the temperature sensor (50) is used for collecting temperature information in the dryer tank body (200) and transmitting the temperature information to the main controller (10);
heating steam governing valve (60) is installed on heating steam intake pipe (230) of the desiccator jar body (200), heating steam governing valve (60) with main control unit (10) are connected, heating steam governing valve (60) are used for according to temperature information regulation gets into the volume of the heating steam in the desiccator jar body (200).
3. The control system of a dryer of claim 1, further comprising:
the pressure sensor (70) is installed on the dryer tank body (200), the pressure sensor (70) is connected with the main controller (10), the main controller (10) is connected with the vacuum pump (210), and the pressure sensor (70) is used for acquiring vacuum degree information in the dryer tank body (200) and transmitting the vacuum degree information to the main controller (10).
4. The control system of a dryer of claim 1, further comprising:
a dryer feed valve (80) mounted on the dryer feed pipe (240), the dryer feed valve (80) being connected to the main controller (10);
and the dryer outlet valve (90) is arranged on a discharge pipe (250) of the dryer, and the dryer outlet valve (90) is connected with the main controller (10).
5. The control system of a dryer according to claim 1, wherein the stirring motor (260) of the dryer is connected with the main controller (10).
6. The control system of a dryer of claim 1, further comprising:
humidity transducer (100), install on the desiccator jar body (200), humidity transducer (100) with main control unit (10) are connected, humidity transducer (100) are used for gathering the air humidity information in the desiccator jar body (200), and will air humidity information conveying to main control unit (10).
7. The control system of a dryer of claim 1, further comprising:
the dew point sensor (110) is installed on the dryer tank body (200), the dew point sensor (110) is connected with the main controller (10), and the dew point sensor (110) is used for collecting dew point temperature information in the dryer tank body (200) and transmitting the dew point temperature information to the main controller (10).
8. A vacuum drying machine, the vacuum drying machine includes the desiccator jar body (200), install agitator motor (260) on the desiccator jar body (200), the desiccator jar body (200) is through a pipe connection vacuum pump (210), vacuum pump (210) with install a filter equipment (220) on the pipeline of desiccator jar body (200) intercommunication, connect heating steam intake pipe (230), inlet pipe (240) and discharging pipe (250) on the desiccator jar body (200), characterized in that, still be equipped with the control system of any one of claim 1-7 on the vacuum drying machine.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920692071.0U CN209926730U (en) | 2019-05-14 | 2019-05-14 | Control system of drying machine and vacuum drying machine |
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| CN201920692071.0U CN209926730U (en) | 2019-05-14 | 2019-05-14 | Control system of drying machine and vacuum drying machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111609684A (en) * | 2020-06-08 | 2020-09-01 | 张小燕 | Drying device is used in fish and soft-shelled turtle processing |
| CN115585643A (en) * | 2022-10-21 | 2023-01-10 | 山西森连有电子科技有限公司 | Intelligent vacuum dryer |
-
2019
- 2019-05-14 CN CN201920692071.0U patent/CN209926730U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111609684A (en) * | 2020-06-08 | 2020-09-01 | 张小燕 | Drying device is used in fish and soft-shelled turtle processing |
| CN115585643A (en) * | 2022-10-21 | 2023-01-10 | 山西森连有电子科技有限公司 | Intelligent vacuum dryer |
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Address after: No. 33, Changcheng Road, west of Changcheng road and north of Shiji Avenue, Dawukou District, Shizuishan City, Ningxia Hui Autonomous Region Patentee after: BASF Shanshan battery material (Ningxia) Co.,Ltd. Address before: Room 301, management committee office building, Shizuishan hi tech Industrial Development Zone, Ningxia Hui Autonomous Region Patentee before: SHANSHAN ENERGY (NINGXIA) Co.,Ltd. |