CN113203262B - Three-pass cyclone type rapeseed drying intelligent control system - Google Patents

Abstract

The invention relates to an intelligent control system for three-return cyclone type rapeseed drying, comprising: a drum dryer body and a feeding device, wherein the feeding device comprises a feeding barrel and a feeding hopper, and the top of the feeding barrel is A feeding control board is fixedly installed, a feeding controller is fixedly installed on the top of the feeding control board, a T1 temperature sensor is fixedly installed inside the feeding cylinder, and a discharging device includes a discharging device. Drum, T2 temperature sensor and P1 wind pressure sensor, impurity removal device, the impurity removal device includes a cyclone separation drum and a high-pressure centrifugal fan, the interior of the cyclone separation drum is fixedly installed with a P2 air pressure sensor and a T3 temperature sensor, two Mobile mechanisms, distribution controls, electric heaters. The three-return cyclone type rapeseed drying intelligent control system realizes the purpose of online automatic monitoring, avoids manual manual operation, reduces the labor intensity of heating, and improves production efficiency.

Description

Three-pass cyclone type rapeseed drying intelligent control system

technical field

The invention relates to the technical field of agricultural machinery.

Background technique

The moisture content of newly harvested rapeseed is 15% to 30%. The harvest season of rapeseed in my country is the rainy season with high temperature and high humidity. The newly harvested rapeseed has high moisture and protein content and strong hygroscopicity, which is different from that of rapeseed. Traditional food crops are more prone to mildew due to their small particles, small voids and high oil content, which are not easy to dissipate heat. This not only affects the quality of rapeseed oil, causing huge economic losses, but also poses a serious threat to human health. Therefore, freshly harvested rapeseed must be dried in time for safe storage.

The automation degree of rapeseed drying equipment in my country is low. Most of the dryers are mainly operated manually. The online automatic monitoring technology for on-site moisture, temperature and quality of materials is relatively backward, and the drying quality of rapeseed is not good. Due to the low degree of automation, so The labor intensity is high, and the working performance of the equipment is not stable enough. There are often situations such as material blockage, overheating and uneven drying.

SUMMARY OF THE INVENTION

Aiming at the technical problems existing in the prior art, the present invention provides a three-return cyclone type rapeseed drying intelligent control system, which solves the problem of low automation degree of the current rapeseed drying equipment.

The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a three-return cyclone type rapeseed drying intelligent control system, including:

Tumble dryer body;

A feeding device, the feeding device includes a feeding cylinder and a feeding hopper, a feeding control board is fixedly installed on the top of the feeding cylinder, and a feeding controller is fixedly installed on the top of the feeding control board, so A T temperature sensor is fixedly installed inside the feeding barrel;

A discharging device, the discharging device includes a discharging cylinder, a T temperature sensor and a P wind pressure sensor, and the T temperature sensor and the P wind pressure sensor are fixedly installed inside the discharging cylinder;

The impurity removal device includes a cyclone separation cylinder and a high-pressure centrifugal fan, a P wind pressure sensor and a T temperature sensor are fixedly installed inside the cyclone separation cylinder, and a first corrugation is fixedly installed at the bottom of the discharge cylinder The end of the first corrugated pipe away from the discharge cylinder is fixedly connected to the feed port of the cyclone separation cylinder, the inside of the high-pressure centrifugal fan is fixedly installed with a fan current sensor, and the suction end of the high-pressure centrifugal fan is fixedly connected with a second a corrugated pipe, one end of the second corrugated pipe away from the high-pressure centrifugal fan is fixedly connected with the exhaust end of the cyclone separation cylinder;

two moving mechanisms, the moving mechanisms include a mounting plate, the bottom of the mounting plate is fixedly mounted with a moving wheel, and the top of the mounting plate is fixedly mounted with a threaded cylinder;

A power distribution control device, the power distribution control device includes a power distribution cabinet, a touch display screen is fixedly installed on the front of the power distribution cabinet, a control button group is fixedly installed on the front of the power distribution cabinet, and a control button group is fixedly installed on the front of the power distribution cabinet. A PLC controller is fixed inside;

electric heater;

The intelligent system of three-pass cyclone rapeseed drying adopts the following control process, including the following steps:

1) Turn on the machine, press the power switch button to start, then log in and verify on the touch screen, then set the parameters, turn the electric heater power adjustment knob to adjust the power, and finally adjust the manual and automatic conversion knob to automatic. At this time, the high voltage The centrifugal fan works. After the delay time of 10 seconds, the deceleration motor works. After the delay time of 10 seconds, the electric heater starts to work again. When the outlet air temperature of the electric heater reaches the set value of the T1 temperature sensor, the material is fed at this time. The controller works, open to the initial value;

2) Process control, the air temperature can be controlled by the set T1 temperature sensor, the electric heater is turned off when it is higher than the set value, and turned on when it is lower than the set value. The air volume inside the separation cylinder can control the opening and closing degree of the feed valve;

3) Shut down, adjust the manual and automatic switching knob to the stop position. At this time, the control system first controls the feeding control board to stop feeding, then turns off the electric heater, delays for 5 minutes, then turns off the deceleration motor, delays for 3 minutes, and finally Turn off the high pressure centrifugal fan.

On the basis of the above technical solutions, the present invention can also be improved as follows.

Further, the tumble dryer body includes a reduction motor and two supporting rollers, the tops of the two supporting rollers are meshed with a gear ring, and a drying chamber is fixedly installed between the inner sides of the two gear rings.

Further, a valve is fixedly installed at the bottom of the feeding hopper, the bottom of the valve penetrates and extends into the interior of the feeding barrel, and the feeding controller is electrically connected to the valve.

Further, a threaded rod is threadedly connected to the inner side of the threaded barrel, a bottom end of the threaded rod is fixedly installed with a foot cup, and a bottom of the foot cup is fixed with a support plate.

Further, the tumble dryer body is fixedly installed on the top of the moving mechanism, the feeding device is movably installed on the left side of the tumble dryer body, and the discharging device is movably installed on the tumble dryer body on the right.

Further, the T1 temperature sensor, T2 temperature sensor, T3 temperature sensor, P1 wind pressure sensor, P2 wind pressure sensor, high pressure centrifugal fan, feeding control board, feeding controller, gear motor and electric heater are all controlled by PLC. electrical connection.

Further, the electric heater is fixedly installed on the left side of the feeding device, the power distribution cabinet is located on the top of the moving mechanism, and two supporting plates are fixedly installed at the bottom of the feeding device, and the bottoms of the two supporting plates are Fixed connection to the mounting plate.

Compared with the prior art, the technical solution of the present application has the following beneficial technical effects:

1. The three-return cyclone type rapeseed drying intelligent control system can control the opening and closing degree of the feeding valve through the cooperation of the set feeding control board, feeding controller, fan current sensor and valve. The T1 temperature sensor can control the air temperature. When the value is higher than the set value, the electric heater is turned off, and when it is lower than the set value, it is turned on. The wind pressure in the cyclone separator is detected, and the system realizes the purpose of online automatic monitoring, which can avoid manual operation, reduce the labor intensity of heating, and improve the production efficiency.

2. The three-return cyclone type rapeseed drying intelligent control system can move the drum dryer body and the impurity removal device at will through the set moving mechanism, which is convenient for handling the equipment, thus greatly improving its use. Effect.

Description of drawings

Fig. 1 is the three-return cyclone type rapeseed drying intelligent control system structure schematic diagram of the present invention;

2 is a schematic structural diagram of a control cabinet of a three-return cyclone type rapeseed drying intelligent control system of the present invention;

3 is a schematic structural diagram of the support mechanism of the intelligent control system for the three-return cyclone type rapeseed drying of the present invention;

Fig. 4 is the circuit diagram of the PLC controller of the intelligent control system for the three-return cyclone type rapeseed drying of the present invention.

In the accompanying drawings, the list of components represented by each number is as follows:

1. The tumble dryer body, 11, the gear motor, 12, the supporting roller, 13, the ring gear, 14, the drying chamber, 2, the feeding device, 21, the feeding cylinder, 22, the feeding hopper, 23, Feed control board, 24, Feed controller, 25, T1 temperature sensor, 3, Discharge device, 31, Discharge cylinder, 32, T2 temperature sensor, 33, P1 air pressure sensor, 4, Impurity removal device, 41 , cyclone separator, 42, high pressure centrifugal fan, 43, P2 air pressure sensor, 44, T3 temperature sensor, 5, moving mechanism, 51, mounting plate, 52, moving wheel, 53, threaded barrel, 54, threaded rod, 55 , Foot cup, 56, support plate, 6, power distribution control device, 61, touch screen, 62, control button group, 63, PLC controller, 64, power distribution cabinet, 7, electric heater.

Detailed ways

The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples are only used to explain the present invention, but not to limit the scope of the present invention.

Please refer to Figures 1-4, the three-return cyclone type rapeseed drying intelligent control system in this embodiment, the three-return cyclone type rapeseed drying intelligent control system, includes: tumble dryer body 1, feeding Device 2, discharge device 3, impurity removal device 4, two moving mechanisms 5, power distribution control device 6 and electric heater 7, the feeding device 2 is movably installed on the left side of the tumble dryer body 1, and the material is discharged. The device 3 is movably installed on the right side of the tumble dryer body 1, the tumble dryer body 1 and the impurity removal device 4 are fixedly installed on the top of the moving mechanism 5, and the power distribution control device 6 is used to control the device of the entire system , the opening and closing degree of the feeding valve can be controlled by the cooperation of the feeding control board 23, the feeding controller 24 and the valve set in the feeding device 2, and at the same time, the T1 temperature set in the feeding device 2 is set. The sensor 25 can control the wind temperature, and can detect the wind pressure in the entire equipment through the P1 wind pressure sensor 33 set in the discharge device 3 and the P2 wind pressure sensor 43 set in the impurity removal device 4 respectively, Further, the purpose of online automatic monitoring is realized, manual operation can be avoided, labor intensity of heating is reduced, and production efficiency is improved.

As shown in FIG. 1 , the tumble dryer body 1 in this embodiment includes a deceleration motor 11 and two supporting rollers 12 . The tops of the two supporting rollers 12 are meshed with a gear ring 13 , and the inner sides of the two gear rings 13 are engaged with each other. A drying chamber 14 is fixedly installed therebetween.

In addition, a shaft is fixedly installed between the inner sides of the two supporting rollers 12, and the shaft is fixedly connected with the output shaft of the deceleration motor 11. The decelerating motor 11 drives the two supporting rollers 12 to rotate at the same time through the shaft, and the two supporting rollers 12 pass through The meshing ring gear 13 can rotate the drying chamber 14 .

As shown in FIG. 1 , the feeding device 2 in this embodiment includes a feeding cylinder 21 and a feeding hopper 22 , a feeding control board 23 is fixedly installed on the top of the feeding cylinder 21 , and a feeding control board 23 is fixedly installed on the top of the feeding cylinder 21 . There is a feeding controller 24 , and a T1 temperature sensor 25 is fixedly installed inside the feeding barrel 21 .

In addition, a valve is fixedly installed at the bottom of the feeding hopper 22, the bottom of the valve penetrates and extends into the interior of the feeding barrel 21, the feeding controller 24 is electrically connected with the valve, the feeding hopper 22 is located above the feeding barrel 21, and the feeding The feeding device 2 is movably installed on the left side of the tumble dryer body 1 .

As shown in FIG. 1 , the discharging device 3 in this embodiment includes a discharging cylinder 31 , a T2 temperature sensor 32 and a P1 wind pressure sensor 33 , and both the T2 temperature sensor 32 and the P1 wind pressure sensor 33 are fixedly installed on the discharging cylinder 31 Inside, the bottom of the discharge cylinder 31 is fixedly installed with a first bellows.

In addition, the discharging device 3 is movably installed on the right side of the tumble dryer body 1 .

It can be understood that the first corrugated pipe in this embodiment can be not only a corrugated pipe, but also a hose, as long as the rapeseed material can be circulated into the inside of the cyclone separation cylinder 41 .

As shown in FIG. 1 , the impurity removal device 4 in this embodiment includes a cyclone separation cylinder 41 and a high-pressure centrifugal fan 42 , and a P2 wind pressure sensor 43 and a T3 temperature sensor 44 are fixedly installed inside the cyclone separation cylinder 41 , and the high-pressure centrifugal fan 42 A fan current sensor is fixedly installed inside the cyclone, a second bellows is fixedly connected to the exhaust end of the high-pressure centrifugal fan 42 , and one end of the second bellows away from the high-pressure centrifugal fan 42 is fixedly connected to the exhaust end of the cyclone separation cylinder 41 .

In addition, one end of the first bellows away from the discharging cylinder 31 is fixedly connected with the feeding port of the cyclone separation cylinder 41 , and the impurity removing device 4 is fixedly installed on the top of the moving mechanism 5 .

As shown in FIG. 3 , the moving mechanism 5 in this embodiment includes a mounting plate 51 , the bottom of the mounting plate 51 is fixedly mounted with a moving wheel 52 , the top of the mounting plate 51 is fixedly mounted with a threaded barrel 53 , and the inner side of the threaded barrel 53 is threadedly connected There is a threaded rod 54 , the bottom end of the threaded rod 54 is fixedly mounted with a foot cup 55 , and the bottom of the foot cup 55 is fixedly mounted with a support plate 56 .

In addition, the support plate 56 is a protective plate, and the top end of the threaded rod 54 is fixedly mounted with a runner.

As shown in FIG. 2 , the power distribution control device 6 in this embodiment includes a power distribution cabinet 64 , a touch display screen 61 is fixedly installed on the front of the power distribution cabinet 64 , and a control button group 62 is fixedly installed on the front of the power distribution cabinet 64 . The PLC controller 63 is fixedly installed inside the power distribution cabinet 64 .

In addition, the control button group 62 includes a power indicator button, a high-pressure centrifugal fan off button, a gear motor off button, an electric heater off button, a feeding controller off button, a feeding controller on button, an electric heater on button, an electric heater on The heater power adjustment knob, the gear motor on button, the high pressure centrifugal fan on button and the manual automatic switch knob, the high pressure centrifugal fan off button and the high pressure centrifugal fan on button are all electrically connected with the high pressure centrifugal fan 42, the gear motor off button and the gear motor on The buttons are all electrically connected with the deceleration motor 11, the feed controller off button and the feed controller on button are all electrically connected with the feed controller 24, the electric heater on button, the electric heater power adjustment knob and the electric heater off button They are all electrically connected to the electric heater 7, the manual and automatic switching knob is electrically connected to the PLC controller 63, and the touch screen 61 includes an operator login and logout interface, a process flow interface, a historical report page, an alarm and parameter setting page, and the login and logout interface. It is used to verify the identity of employees. In the process flow interface, T1 temperature sensor 25, T2 temperature sensor 32, T3 temperature sensor 44, P1 air pressure sensor 33, P2 air pressure sensor 43, fan current sensor and valve feeding can be viewed in real time. The value of the opening and closing degree, the historical report can display the cumulative amount of historical discharge and the opening degree of the historical feeder. The alarm is to execute the alarm when there is no material in the hopper. The parameter setting can set the delay time of the high-pressure centrifugal fan 42, the gear motor 11. Shutdown delay time, electric heater 7 start temperature and electric heater 7 stop temperature.

In addition, the high-pressure centrifugal fan 42 is controlled by the frequency converter, and its operating frequency is determined by manual operation on the frequency converter. Once set, the data will be retained, and the next time the machine is turned on, it will run according to the set parameters, and the rotating speed of the drying chamber 14 will be decelerated by The motor 11 is controlled by manually setting the control parameters. Once set, the data will be retained. The next time the machine is turned on, it will run according to the set parameters. The electric heater 7 is controlled by the SCR power regulator, according to the set T1 temperature. Sensor 25, stabilize the temperature by manually adjusting the potentiometer. Once set, the data will be retained. The next time the machine is turned on, it will operate according to the set parameters. Both the T1 temperature sensor and the T2 temperature sensor can be set on the touch screen, and the T3 temperature sensor can be set on the touch screen. The sensor does not need to be set, the T1 temperature sensor 25 is higher than the set upper limit to control the shutdown, and when it is lower than the set lower limit, it is controlled to start up, the T2 temperature sensor 32 is higher than the set value and stops heating, the T3 temperature sensor 44 only The measured temperature is displayed. The opening and closing degree of the valve controlled by the feeding control board 23 of the feeding controller 24 has an upper limit value and a lower limit value. In the automatic control state, it is controlled by the current feedback of the high-pressure centrifugal fan 42, and the high-pressure fan feedback current There is a settable upper limit value and lower limit value, the current is monitored and fed back through the set fan current sensor, and the manual and automatic switch knob set in the power distribution cabinet 64, when manual, you can manually operate the electric heater 7, The geared motor 11, the high-pressure centrifugal fan 42 and the feeding control board 23 can still display the temperature and valve opening signals on the touch screen 61 in the manual state.

The working principle of the above embodiment is:

(1) Start by pressing the power switch button, then perform login verification on the touch screen 61, and then perform parameter setting, rotate the electric heater power adjustment knob to adjust the power, and finally adjust the manual automatic conversion knob to automatic. The high-pressure centrifugal fan 42 works. After the delay time of 10 seconds, the delay time can be set by itself, and then the deceleration motor 11 works. After the delay time of 10 seconds, the delay time can also be set according to the demand, and the electric heater 7 will work again. When After the outlet air temperature of the electric heater 7 reaches the set value of the T1 temperature sensor 25, the feed controller 24 works and opens to the initial value.

(2) The air temperature can be controlled by the set T1 temperature sensor. When it is higher than the set value, the electric heater 7 is turned off, and when it is lower than the set value, it is turned on. The set fan current sensor can monitor the cyclone separation according to the set value. The air volume inside the cylinder 41 is used to control the opening and closing of the feeding valve. When the current is detected to be greater than the set value, the current sensor will give a 4-20mA signal, which is used to control the feeding controller 24 to close the small valve. The opening amount of opening or closing until the fan current sensor reaches the set value, when the wind current sensor has an upper limit value and a lower limit value, when the upper limit value is reached, it will prompt to close the feed controller 24, and feed when the lower limit value is reached The controller 24 stops the operation of closing the feed control board 23 .

(3) By adjusting the manual automatic switching knob 12 to the stop position, the control system first controls the feeding control board 23 to stop feeding, and then turns off the electric heater 7, and delays it for 5 minutes. The delay time can be set by itself, Then turn off the deceleration motor 11, delay for 3 minutes, the delay time can also be set according to requirements, and finally turn off the high-pressure centrifugal fan 42.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. Inside.

Claims (7)

1. the intelligent control system of three-return cyclone type rapeseed drying, is characterized in that, comprises: a tumble dryer body (1); A feeding device (2), the feeding device (2) comprises a feeding cylinder (21) and a feeding hopper (22), and a feeding control board (23) is fixedly installed on the top of the feeding cylinder (21) , a feeding controller (24) is fixedly installed on the top of the feeding control board (23), and a T1 temperature sensor (25) is fixedly installed inside the feeding cylinder (21); A discharging device (3), the discharging device (3) comprises a discharging cylinder (31), a T2 temperature sensor (32) and a P1 wind pressure sensor (33), the T2 temperature sensor (32) and the P1 wind pressure The sensors (33) are fixedly installed inside the discharge cylinder (31); An impurity removal device (4), the impurity removal device (4) includes a cyclone separation cylinder (41) and a high-pressure centrifugal fan (42), and a P2 wind pressure sensor (43) is fixedly installed inside the cyclone separation cylinder (41). and T3 temperature sensor (44), the bottom of the discharge cylinder (31) is fixedly installed with a first bellows, the end of the first bellows away from the discharge cylinder (31) and the feed port of the cyclone separation cylinder (41) Fixed connection, a fan current sensor is fixedly installed inside the high-pressure centrifugal fan (42), and a second bellows is fixedly connected to the suction end of the high-pressure centrifugal fan (42), and the second bellows is far away from the high-pressure centrifugal fan (42) One end of the cyclone is fixedly connected to the exhaust end of the cyclone separator (41); Two moving mechanisms (5), the moving mechanisms (5) include a mounting plate (51), the bottom of the mounting plate (51) is fixedly mounted with a moving wheel (52), and the top of the mounting plate (51) is fixed A threaded barrel (53) is installed; A power distribution control device (6), the power distribution control device (6) includes a power distribution cabinet (64), a touch display screen (61) is fixedly mounted on the front of the power distribution cabinet (64), and the power distribution cabinet (64) is A control button group (62) is fixedly installed on the front of (64), and a PLC controller (63) is fixedly installed inside the power distribution cabinet (64); electric heater (7); The intelligent system of three-pass cyclone rapeseed drying adopts the following control process, including the following steps: 1) Turn on the machine, press the power switch button to start, then perform login verification on the touch screen (61), then set the parameters, turn the electric heater power adjustment knob to adjust the power, and finally adjust the manual automatic conversion knob to automatic, At this time, the high-pressure centrifugal fan (42) works, and then the deceleration motor (11) works. After a delay time of 10 seconds, the electric heater (7) starts to work again. When the outlet air temperature of the electric heater (7) reaches the T1 temperature sensor ( 25) After reaching the set value, the feed controller (24) works at this time and opens to the initial value; 2) Process control, the air temperature can be controlled by the set T1 temperature sensor, the electric heater (7) will be turned off when it is higher than the set value, and it will be turned on when it is lower than the set value. The air volume inside the cyclone separator (41) is monitored to control the opening and closing degree of the feed valve; 3) Turn off the power and adjust the manual and automatic switching knob to the stop position. At this time, the control system first controls the feeding control board (23) to stop feeding, and then turns off the electric heater (7), delays for 5 minutes, and then turns off the deceleration motor. (11), delay for 3 minutes, and finally turn off the high-pressure centrifugal fan (42). 2. The intelligent control system for three-return cyclone type rapeseed drying according to claim 1, wherein the drum dryer body (1) comprises a geared motor (11) and two supporting rollers (12) ), the tops of the two supporting wheels (12) are meshed with a gear ring (13), and a drying chamber (14) is fixedly installed between the inner sides of the two gear rings (13). 3. The intelligent control system for three-return cyclone type rapeseed drying according to claim 1, wherein a valve is fixedly installed at the bottom of the feeding hopper (22), and the bottom of the valve penetrates and extends to the feeding Inside the barrel (21), the feed controller (24) is electrically connected to the valve. 4. The intelligent control system for three-return cyclone type rapeseed drying according to claim 1, wherein a threaded rod (54) is threadedly connected to the inner side of the threaded barrel (53), and the threaded rod (54) A foot cup (55) is fixedly installed at the bottom end of the ), and a support plate (56) is fixedly installed at the bottom of the foot cup (55). 5. The intelligent control system for three-return cyclone type rapeseed drying according to claim 1, wherein the drum dryer body (1) is fixedly installed on the top of the moving mechanism (5), and the The feeding device (2) is movably installed on the left side of the tumble dryer body (1), and the discharging device (3) is movably installed on the right side of the tumble dryer body (1). 6. The three-return cyclone type rapeseed drying intelligent control system according to claim 1, wherein the T1 temperature sensor (25), T2 temperature sensor (32), T3 temperature sensor (44), P1 The air pressure sensor (33), the P2 air pressure sensor (43), the high-pressure centrifugal fan (42), the feeding control board (23), the feeding controller (24), the gear motor (11) and the electric heater are all connected to the PLC. The controller (63) is electrically connected. 7. The three-return cyclone type rapeseed drying intelligent control system according to claim 1, wherein the electric heater (7) is fixedly installed on the left side of the feeding device (2), and the The electric cabinet (64) is located on the top of the moving mechanism (5), and two support plates are fixedly installed at the bottom of the feeding device (2), and the bottoms of the two support plates are fixedly connected with the mounting plate.

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