CN219778114U - A automatically controlled adjusting device of accurate batching for producing slow-release fertilizer - Google Patents
A automatically controlled adjusting device of accurate batching for producing slow-release fertilizer Download PDFInfo
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- CN219778114U CN219778114U CN202320272939.8U CN202320272939U CN219778114U CN 219778114 U CN219778114 U CN 219778114U CN 202320272939 U CN202320272939 U CN 202320272939U CN 219778114 U CN219778114 U CN 219778114U
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- noise reduction
- resistor
- release fertilizer
- amplifier
- batching
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 27
- 238000001514 detection method Methods 0.000 claims abstract description 45
- 238000005303 weighing Methods 0.000 claims abstract description 39
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 230000003750 conditioning effect Effects 0.000 claims abstract description 7
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 230000003321 amplification Effects 0.000 claims abstract description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 18
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000013270 controlled release Methods 0.000 claims 4
- 238000000034 method Methods 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003181 biological factor Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000003621 irrigation water Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
Abstract
The utility model discloses an accurate batching electric control adjusting device for slow release fertilizer production, which comprises a sensor detection module, a signal processing module and a batching control module, wherein the sensor detection module comprises a weighing sensor for detecting the batching weight of slow release fertilizer raw materials, detection signals of the weighing sensor are sent to the signal processing module for conditioning, the signal processing module comprises a first noise reduction amplifier and a second noise reduction amplifier, the first noise reduction amplifier is used for carrying out notch tuning treatment on the detection signals of the weighing sensor, then the detection signals are sent to the second noise reduction amplifier for carrying out compensation amplification and amplitude stabilizing filtering conditioning in sequence, the output signals of the sensor detection module are processed step by step in a double noise reduction amplifier mode, the influence of mechanical noise and electric interference on the detection signals of the weighing sensor is effectively avoided, the accuracy and the control effectiveness of the batching equipment electric control module on weighing detection are improved, and the raw material proportioning accuracy of slow release fertilizer production is further improved.
Description
Technical Field
The utility model relates to the technical field of slow release fertilizer batching equipment, in particular to an electric control adjusting device for accurate batching for slow release fertilizer production.
Background
The slow release fertilizer is characterized in that the release rate of nutrients in the fertilizer is slowed down by chemical and biological factors, and the slow release fertilizer is influenced by a plurality of external factors such as soil pH value, microbial activity, soil moisture content, soil type, irrigation water quantity and the like during release. In the slow release fertilizer production process, the proportion of raw materials is critical, and the current batching system mainly comprises a hopper and a conveying device and realizes quantitative feeding by adjusting an electric control device; for example, the utility model patent with application number 201921627782.6 discloses a batching device for producing fertilizer, the device adopts a mode of premixing and re-stirring, the blanking quantity ratio of a material guide channel below each hopper in unit time is equal to the proportion of each raw material by rotating a handle, and the device has no metering element, and the batching quantity is simply controlled by the blanking time, so that the error is larger;
the utility model patent with the application number of 202011274008.9 discloses a quantitative conveying device for compound fertilizer production, which uniformly conveys raw materials to a weighing belt through a feeding belt, a sensing device under the weighing belt feeds the weight of the materials on the belt back to a PCL control system, the PCL control system accurately controls various raw materials to be conveyed according to a set proportion through a variable frequency motor for calculating and controlling the feeding belt and the weighing belt, and various raw materials conveyed according to the set proportion are conveyed to the raw material belt through a collecting belt, so that the device is added with a metering element and an electric control system to realize automatic control of a batching process; however, in the working process of the electric control system, the sensor under the weighing belt is mechanically disturbed due to the fact that the materials on the weighing belt naturally fall down due to gravity, and the electric interference generated in the running process of equipment can be seriously influenced, so that the weighing detection signal output is error, the raw material proportion is inaccurate, and the production quality of the slow-release fertilizer is influenced.
The present utility model provides a new solution to this problem.
Disclosure of Invention
Aiming at the situation, the utility model aims to overcome the defects of the prior art and provide an accurate batching electric control regulating device for slow release fertilizer production.
The technical scheme for solving the problems is as follows: the accurate batching electronic control adjusting device for slow release fertilizer production comprises a sensor detection module, a signal processing module and a batching control module, wherein the sensor detection module comprises a weighing sensor for detecting slow release fertilizer raw material preparation weight, detection signals of the weighing sensor are sent to the signal processing module to be conditioned, the signal processing module comprises a first noise reduction amplifier and a second noise reduction amplifier, the first noise reduction amplifier is used for carrying out notch tuning treatment on the detection signals of the weighing sensor, then the detection signals are sent to the second noise reduction amplifier to be sequentially subjected to compensation amplification and amplitude stabilizing filtering conditioning, and finally the processed weighing detection signals are sent to the batching control module.
Preferably, the first noise reduction amplifier includes an inductor L1, one end of the inductor L1 is connected with one end of a capacitor C2 and a signal output end of the sensor detection module, the other end of the inductor L1 is connected with one end of a resistor R3 and an emitter of a triode VT1, the other ends of the capacitor C2 and the resistor R3 are connected with a base of the triode VT1 and one end of a varistor RP1, an inverting input end and an output end of the operational amplifier U1 are connected with a sliding end of the varistor RP1 and are grounded through a resistor R5, and the other end of the varistor RP1 is grounded through a resistor R4.
Preferably, the second noise reduction amplifier includes an operational amplifier U2 and a MOS transistor Q1, the in-phase input end of the operational amplifier U2 is connected to the output end of the operational amplifier U1, the inverting input end of the operational amplifier U2 is connected to the output end of the operational amplifier U2 through a parallel resistor R7 and a capacitor C3, and is grounded through a resistor R6, the output end of the operational amplifier U2 is connected to one end of a resistor R8 and the drain electrode of the MOS transistor Q1, the gate electrode of the MOS transistor Q1 is connected to the other end of the resistor R8 and the cathode of the zener diode DZ1, the anode of the zener diode DZ1 is grounded, the source electrode of the MOS transistor Q1 is connected to one end of the inductor L2, and the other end of the inductor L2 is connected to the ingredient control module and is grounded through a capacitor C4.
Preferably, the weighing sensor is PA6210, the output end of the weighing sensor is connected with one end of a capacitor C1 and one end of a resistor R2 through a resistor R1, the other end of the capacitor C1 is grounded, and the other end of the resistor R2 is connected with the input end of the first noise reduction amplifier.
Preferably, the batching control module selects a PLC controller, and the PLC controller is used for controlling quantitative feeding of the feeding equipment.
Through the technical scheme, the utility model has the beneficial effects that: according to the electronic control adjusting device, the circuit structure in the signal processing module is improved, the output signals of the sensor detecting module are processed step by step in a double noise reduction amplifier mode, the influence of mechanical noise and electric interference on the detection signals of the weighing sensor is effectively avoided, the accuracy and the control effectiveness of the electronic control module of the batching equipment on weighing detection are improved, and further the raw material proportioning precision of slow-release fertilizer production is improved.
Drawings
Fig. 1 is a schematic circuit diagram of a sensor detection module according to the present utility model.
Fig. 2 is a schematic circuit diagram of a first noise reduction amplifier according to the present utility model.
Fig. 3 is a schematic circuit diagram of a second noise reduction amplifier of the present utility model.
Detailed Description
The foregoing and other features, aspects and advantages of the present utility model will become more apparent from the following detailed description of the embodiments, which proceeds with reference to the accompanying figures 1-3. The following embodiments are described in detail with reference to the drawings.
Exemplary embodiments of the present utility model will be described below with reference to the accompanying drawings.
The accurate batching electric control regulating device for slow release fertilizer production comprises a sensor detection module, a signal processing module and a batching control module, wherein the sensor detection module comprises a weighing sensor for detecting the weight of slow release fertilizer raw material preparation, the weighing sensor in the embodiment adopts an S-shaped weighing sensor J1 with the model of PA6210, and the weighing sensor is used for detecting the weight of raw materials on a weighing belt, converting the weight of raw materials into an electric signal of 4-20mA and outputting the electric signal to the signal processing module for conditioning;
the signal processing module comprises a first noise reduction amplifier and a second noise reduction amplifier, wherein the first noise reduction amplifier is used for carrying out notch tuning processing on the detection signal of the weighing sensor, then sending the detection signal into the second noise reduction amplifier for carrying out compensation amplification and amplitude stabilizing filtering conditioning in sequence, and finally sending the processed weighing detection signal to the batching control module.
As shown in fig. 1, an output end of a weighing sensor J1 in the sensor detection module is connected with one end of a capacitor C1 and one end of a resistor R2 through a resistor R1, the other end of the capacitor C1 is grounded, and the other end of the resistor R2 is connected with an input end of the first noise reduction amplifier; the detection signal of the weighing sensor J1 is transmitted to the signal processing module after RC filtering and noise reduction;
in the processing process of the signal processing module, in order to avoid the influence of mechanical noise and electric interference on the detection signal of the weighing sensor, the detection signal is processed step by step in a double noise reduction amplifier mode, and the specific circuit structure and the working principle thereof are as follows:
firstly, the first noise reduction amplifier conditions an output signal of the sensor detection module, as shown in fig. 2, the first noise reduction amplifier comprises an inductor L1, one end of the inductor L1 is connected with one end of a capacitor C2 and a signal output end of the sensor detection module, the other end of the inductor L1 is connected with one end of a resistor R3 and an emitter of a triode VT1, the other ends of the capacitor C2 and the resistor R3 are connected with a base of the triode VT1 and one end of a rheostat RP1, an inverting input end and an output end of the operational amplifier U1 are connected with a sliding end of the rheostat RP1 and are grounded through a resistor R5, and the other end of the rheostat RP1 is grounded through a resistor R4;
the first noise reduction amplifier is provided with an RLC notch network at a front stage to carry out noise suppression on an output signal of the sensor detection module, and can suppress mechanical noise with specific frequency by utilizing an RLC notch principle, so that peak errors caused by external mechanical noise on a detection signal waveform are effectively reduced; the detection signal after RLC is sent into a triode VT1 for adjustment, and an operational amplifier U1 is adopted to isolate the output signal of the triode VT1, so that the electrical interference is effectively inhibited; meanwhile, an output signal of the operational amplifier U1 is fed back to the base electrode of the triode VT1 through the rheostat RP1, so that deep feedback adjustment is carried out on the RLC notch network, the frequency characteristic of the notch is effectively improved, and the noise suppression capability and stability of the first noise reduction amplifier are improved;
the detection signal processed by the first noise reduction amplifier is sent to a second noise reduction amplifier for further processing, as shown in fig. 3, the second noise reduction amplifier comprises an operational amplifier U2 and a MOS tube Q1, the non-inverting input end of the operational amplifier U2 is connected with the output end of the operational amplifier U1, the inverting input end of the operational amplifier U2 is connected with the output end of the operational amplifier U2 through a parallel resistor R7 and a capacitor C3 and is grounded through a resistor R6, the output end of the operational amplifier U2 is connected with one end of a resistor R8 and the drain electrode of the MOS tube Q1, the grid electrode of the MOS tube Q1 is connected with the other end of the resistor R8 and the cathode of a voltage stabilizing diode DZ1, the anode of the voltage stabilizing diode DZ1 is grounded, the source electrode of the MOS tube Q1 is connected with one end of an inductor L2, and the other end of the inductor L2 is connected with the batching control module and is grounded through a capacitor C4;
in the processing process of the second noise reduction amplifier, the operational amplifier U2 plays a role in improving the waveform of the output signal of the operational amplifier U1 by utilizing a phase compensation principle, and then the MOS tube Q1 and the voltage stabilizing diode DZ1 are utilized for carrying out amplitude stabilization processing on the output signal of the operational amplifier U2, so that self-compensation adjustment can be effectively carried out when the signal output of the weighing sensor fluctuates, the detection signal is quickly and stably carried out, the system error is reduced, and the precision of the detection signal is effectively improved; finally, the mixture is further subjected to noise reduction treatment through LC filtering and then is sent to a batching control module;
specifically, the batching control module selects a PLC controller, calculates and processes the output signal of the signal processing module through the PLC controller, obtains the weight of the raw materials on the weighing belt, and quantitatively feeds the raw materials according to a set proportion by controlling the feeding equipment.
According to the electronic control adjusting device, the circuit structure in the signal processing module is improved, the output signals of the sensor detecting module are processed step by step in a double noise reduction amplifier mode, the influence of mechanical noise and electric interference on the detection signals of the weighing sensor is effectively avoided, the accuracy and the control effectiveness of the electronic control module of the batching equipment on weighing detection are improved, and further the raw material proportioning precision of slow-release fertilizer production is improved.
While the utility model has been described in connection with certain embodiments, it is not intended that the utility model be limited thereto; for those skilled in the art to which the present utility model pertains and the related art, on the premise of based on the technical scheme of the present utility model, the expansion, the operation method and the data replacement should all fall within the protection scope of the present utility model.
Claims (5)
1. A automatically controlled adjusting device of accurate batching for slow-release fertilizer production, including sensor detection module, signal processing module and batching control module, its characterized in that: the sensor detection module comprises a weighing sensor for detecting the preparation weight of the slow-release fertilizer raw material, detection signals of the weighing sensor are sent to the signal processing module for conditioning, the signal processing module comprises a first noise reduction amplifier and a second noise reduction amplifier, the first noise reduction amplifier is used for carrying out notch tuning on the detection signals of the weighing sensor, then the detection signals are sent to the second noise reduction amplifier for carrying out compensation amplification and amplitude stabilizing filtering conditioning in sequence, and finally the processed weighing detection signals are sent to the batching control module.
2. The electronically controlled regulator for controlled release fertilizer production of claim 1, wherein: the first noise reduction amplifier comprises an inductor L1, one end of the inductor L1 is connected with one end of a capacitor C2 and the signal output end of the sensor detection module, the other end of the inductor L1 is connected with one end of a resistor R3 and the emitter of a triode VT1, the other ends of the capacitor C2 and the resistor R3 are connected with the base of the triode VT1 and one end of a rheostat RP1, the inverting input end and the output end of the operational amplifier U1 are connected with the sliding end of the rheostat RP1 and are grounded through a resistor R5, and the other end of the rheostat RP1 is grounded through a resistor R4.
3. The electronically controlled regulator for controlled release fertilizer production of claim 2, wherein: the second noise reduction amplifier comprises an operational amplifier U2 and a MOS tube Q1, wherein the in-phase input end of the operational amplifier U2 is connected with the output end of the operational amplifier U1, the anti-phase input end of the operational amplifier U2 is connected with the output end of the operational amplifier U2 through a resistor R7 connected in parallel and a capacitor C3 and is grounded through a resistor R6, the output end of the operational amplifier U2 is connected with one end of a resistor R8 and the drain electrode of the MOS tube Q1, the grid electrode of the MOS tube Q1 is connected with the other end of the resistor R8 and the cathode of a voltage-stabilizing diode DZ1, the anode of the voltage-stabilizing diode DZ1 is grounded, the source electrode of the MOS tube Q1 is connected with one end of an inductor L2, and the other end of the inductor L2 is connected with the batching control module and is grounded through a capacitor C4.
4. The electronically controlled regulator for controlled release fertilizer production of claim 1, wherein: the weighing sensor is PA6210, the output end of the weighing sensor is connected with one end of a capacitor C1 and one end of a resistor R2 through a resistor R1, the other end of the capacitor C1 is grounded, and the other end of the resistor R2 is connected with the input end of the first noise reduction amplifier.
5. The electronically controlled regulator for controlled release fertilizer production of claim 1, wherein: the batching control module selects a PLC controller, and the PLC controller is used for controlling the quantitative feeding of the feeding equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320272939.8U CN219778114U (en) | 2023-02-21 | 2023-02-21 | A automatically controlled adjusting device of accurate batching for producing slow-release fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320272939.8U CN219778114U (en) | 2023-02-21 | 2023-02-21 | A automatically controlled adjusting device of accurate batching for producing slow-release fertilizer |
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| Publication Number | Publication Date |
|---|---|
| CN219778114U true CN219778114U (en) | 2023-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320272939.8U Active CN219778114U (en) | 2023-02-21 | 2023-02-21 | A automatically controlled adjusting device of accurate batching for producing slow-release fertilizer |
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| Country | Link |
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| CN (1) | CN219778114U (en) |
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2023
- 2023-02-21 CN CN202320272939.8U patent/CN219778114U/en active Active
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