CN218077795U - Batching control system for production of fluorescent whitening agent OB-1 - Google Patents
Batching control system for production of fluorescent whitening agent OB-1 Download PDFInfo
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- CN218077795U CN218077795U CN202221970387.XU CN202221970387U CN218077795U CN 218077795 U CN218077795 U CN 218077795U CN 202221970387 U CN202221970387 U CN 202221970387U CN 218077795 U CN218077795 U CN 218077795U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
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Abstract
The utility model discloses a batching control system for production of fluorescent brightener OB-1, including the raw materials blanking hopper that sets up at the condensation kettle top, the raw materials blanking hopper is issued and is provided with weighing module and automatically controlled valve, weighing module includes weighing detection circuit, signal amplification regulating circuit and the circuit of making an uproar that connects gradually, the output of the circuit of making an uproar is connected with the controller, the output of controller is connected with the control end of automatically controlled valve; the utility model discloses weighing module effectively reduces the influence of weighing sensor's environmental factor, promotes weighing detection signal's output precision and stability, and the accurate batching of reaction in the condensation kettle is realized to the control accuracy of assurance system unloading.
Description
Technical Field
The utility model relates to a fluorescent brightener preparation technical field especially relates to a batching control system for production of fluorescent brightener OB-1.
Background
4, 4' -bis (benzoxazol-2-yl) stilbene (i.e. fluorescent brightener OB-1) is one of stilbene benzoxazole fluorescent brighteners, has excellent whitening effect and thermal stability, is an important variety of oxazole fluorescent brighteners, is mainly prepared by cyclizing and condensing stilbene 4, 4-dicarboxylic acid and o-aminophenol in the current synthetic route, and needs to weigh and quantitatively feed raw materials falling into a condensation kettle in order to ensure the sufficiency of raw material reaction, however, the current OB-1 production raw materials often have errors of weighing units in the process of proportioning, and the main reasons are that the weighing sensors are influenced by environmental factors, temperature drift occurs in the process of signal processing, and amplification disorder phenomenon causes deviation of the feed quantity of the raw materials, and influences the yield of the condensation reaction.
So the utility model provides a new scheme to solve the problem.
SUMMERY OF THE UTILITY MODEL
In view of the above, in order to overcome the defects of the prior art, the present invention aims to provide a batching control system for the production of fluorescent whitening agent OB-1.
The technical scheme for solving the problem is as follows: a batching control system for production of fluorescent brightener OB-1 comprises a raw material discharging hopper arranged at the top of a condensation kettle, wherein a weighing module and an electric control valve are arranged under the raw material discharging hopper, the weighing module comprises a weighing detection circuit, a signal amplification regulating circuit and a noise reduction circuit which are sequentially connected, the output end of the noise reduction circuit is connected with a controller, and the output end of the controller is connected with the control end of the electric control valve.
Preferably, the weighing detection circuit comprises a weighing sensor, a signal output end of the weighing sensor is connected with one ends of the resistor R1, the capacitor C1 and the rheostat RP1, the other end of the capacitor C1 is grounded, the other end of the resistor R1 is connected with a sliding end of the rheostat RP1, and the other end of the rheostat RP1 is grounded.
Preferably, the signal amplification regulating circuit comprises an operational amplifier AR1, an AR2 and a triode VT1, the in-phase input end of the operational amplifier AR1 is connected with the other end of the resistor R1, the anti-phase input end of the operational amplifier AR1 is grounded through a resistor R2, the resistor R4 is connected with one end of the R5 and the base of the triode VT1 through a resistor R3, the in-phase input end of the operational amplifier AR2 and the other end of the resistor R4 are connected with the output end of the operational amplifier AR1, the base of the triode VT1 is connected with the output end of the operational amplifier AR1, and an amplitude stabilizing regulating component is arranged between the emitting electrode of the triode VT1 and the anti-phase input end of the operational amplifier AR 2.
Preferably, the amplitude stabilizing and adjusting component comprises a capacitor C2, a resistor R6 and a zener diode DZ1, one end of the capacitor C2 and the anode of the zener diode DZ1 are connected to the inverting input terminal of the operational amplifier AR2, the other end of the capacitor C2 is connected to one end of the resistor R6, and the other end of the resistor R6 and the cathode of the zener diode DZ1 are connected to the emitter of the triode VT 1.
Preferably, the noise reduction circuit includes an inductor L1 and a capacitor C3, one end of the inductor L1 is connected to the emitter of the transistor VT1, and the other end of the inductor L1 is connected to the controller, and is grounded through the capacitor C3 and the resistor R7 which are connected in parallel.
Preferably, the controller is a single chip microcomputer with an A/D conversion function.
Through the technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses set up signal amplification regulating circuit and carry out amplification processing to the weighing detected signal, utilize the differential amplifier principle to eliminate common mode interference, reduce the temperature drift influence, promote the linearity that the detected signal was amplified to adopt triode VT1 to form at the output of differential amplifier and follow the amplification, promote detected signal amplitude intensity fast;
2. the amplitude stabilizing adjusting assembly is adopted to carry out negative feedback adjustment on the signal amplification process, so that amplification imbalance is effectively inhibited, and the stability of the output of the weighing detection signal is ensured;
3. the utility model discloses weighing module effectively reduces the influence of weighing sensor's environmental factor, promotes weighing detection signal's output precision and stability, and the accurate batching of reaction in the condensation kettle is realized to the unloading control accuracy of assurance system.
Drawings
Fig. 1 is a schematic circuit diagram of the weighing module of the present invention.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying fig. 1. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
A batching control system for production of fluorescent brightener OB-1 comprises a raw material discharging hopper arranged at the top of a condensation kettle, wherein a weighing module and an electric control valve are arranged under the raw material discharging hopper, the weighing module comprises a weighing detection circuit, a signal amplification regulating circuit and a noise reduction circuit which are sequentially connected, the output end of the noise reduction circuit is connected with a controller, and the output end of the controller is connected with the control end of the electric control valve.
The weighing detection circuit comprises a weighing sensor, a signal output end of the weighing sensor is connected with one ends of a resistor R1, a capacitor C1 and a rheostat RP1, the other end of the capacitor C1 is grounded, the other end of the resistor R1 is connected with a sliding end of the rheostat RP1, and the other end of the rheostat RP1 is grounded.
When the weighing device is specifically set, the weighing sensor selects a YZC-516-2t batching tank weighing sensor, raw materials in the hopper under the raw materials are weighed and converted into electric signals to be output, the capacitor C1 plays a role in filtering and stabilizing the output of detection signals and sends the signals into a signal amplification circuit to be amplified after being shunted by the resistor.
The signal amplification regulating circuit comprises an operational amplifier AR1, AR2 and a triode VT1, the non inverting input end connecting resistance R1's of operational amplifier AR1 other end, the inverting input end of operational amplifier AR1 passes through resistance R2 ground connection, and pass through resistance R3 connecting resistance R4, R5's one end and triode VT 1's base, the non inverting input end of operational amplifier AR2 and the other end of resistance R4 are connected to the output of operational amplifier AR1, triode VT 1's base is connected to the output of operational amplifier AR1, be provided with steady amplitude regulating assembly between triode VT 1's projecting pole and the inverting input end of operational amplifier AR 2. The amplitude stabilizing and adjusting component comprises a capacitor C2, a resistor R6 and a voltage stabilizing diode DZ1, one end of the capacitor C2 and the anode of the voltage stabilizing diode DZ1 are connected with the inverting input end of the operational amplifier AR2, the other end of the capacitor C2 is connected with one end of the resistor R6, and the other end of the resistor R6 and the cathode of the voltage stabilizing diode DZ1 are connected with the emitting electrode of the triode VT 1.
In the working process of the signal amplification regulating circuit, the operational amplifiers AR1 and AR2 form a differential amplifier to amplify the detection signal, so that common mode interference is effectively eliminated, temperature drift influence is reduced, the linearity of the detection signal amplification is improved, the triode VT1 is adopted to form follow amplification at the output end of the differential amplifier, and the amplitude intensity of the detection signal is quickly improved. In order to avoid signal amplification imbalance, an amplitude stabilizing adjusting component is adopted to carry out negative feedback adjustment on the signal amplification process, wherein a capacitor C2 and a resistor R6 play a role in phase compensation, a voltage stabilizing diode DZ1 is arranged to carry out amplitude stabilizing adjustment on the amplification process, amplification imbalance is effectively inhibited, and the stability of output of weighing detection signals is ensured.
The amplified and adjusted weighing detection signal is sent to a noise reduction circuit for further processing, the noise reduction circuit comprises an inductor L1 and a capacitor C3, one end of the inductor L1 is connected with an emitting electrode of a triode VT1, the other end of the inductor L1 is connected with the controller, and the inductor L1 is grounded through the capacitor C3 and a resistor R7 which are connected in parallel. The noise reduction circuit utilizes the LC filter principle to filter and reduce noise of the output signal of the signal amplification and adjustment circuit, eliminates external high-frequency interference and ensures accurate receiving of the weighing detection signal of the controller.
When the automatic material feeding device is specifically set, the controller selects the single chip microcomputer with the A/D conversion function, the single chip microcomputer calculates the real-time feeding amount of the raw material discharging hopper after internal processing of the weighing detection signal, and when the material discharging amount in the raw material discharging hopper reaches a system preset value, the single chip microcomputer controls the electric control valve to close to stop discharging, so that accurate batching of reaction in the condensation kettle is completed.
The above description is provided for further details of the present invention with reference to specific embodiments, which should not be construed as limiting the present invention; to the utility model discloses affiliated and relevant technical field's technical staff is based on the utility model discloses under the technical scheme thinking prerequisite, the extension of doing and the replacement of operating method, data all should fall within the utility model discloses within the scope.
Claims (6)
1. A batching control system for production of optical brightener OB-1, hopper under the raw materials that sets up at the condensation kettle top, hopper down is issued under the raw materials and is provided with weighing module and automatically controlled valve, its characterized in that: the weighing module comprises a weighing detection circuit, a signal amplification regulating circuit and a noise reduction circuit which are sequentially connected, wherein the output end of the noise reduction circuit is connected with a controller, and the output end of the controller is connected with the control end of the electric control valve.
2. The batching control system for the production of optical brighteners OB-1 according to claim 1, characterized in that: the weighing detection circuit comprises a weighing sensor, a signal output end of the weighing sensor is connected with one ends of a resistor R1, a capacitor C1 and a rheostat RP1, the other end of the capacitor C1 is grounded, the other end of the resistor R1 is connected with a sliding end of the rheostat RP1, and the other end of the rheostat RP1 is grounded.
3. The batching control system for the production of optical brighteners OB-1 according to claim 2, characterized in that: the signal amplification regulating circuit comprises an operational amplifier AR1, an AR2 and a triode VT1, the in-phase input end of the operational amplifier AR1 is connected with the other end of a resistor R1, the anti-phase input end of the operational amplifier AR1 is grounded through a resistor R2, the resistor R3 is connected with a resistor R4, one end of a R5 and the base of the triode VT1 are connected, the in-phase input end of the operational amplifier AR2 and the other end of the resistor R4 are connected with the output end of the operational amplifier AR1, the base of the triode VT1 is connected with the output end of the operational amplifier AR1, and an amplitude-stabilizing regulating component is arranged between the emitter of the triode VT1 and the anti-phase input end of the operational amplifier AR 2.
4. The batching control system for the production of optical brighteners OB-1 according to claim 3, characterized in that: the amplitude stabilizing and adjusting assembly comprises a capacitor C2, a resistor R6 and a voltage stabilizing diode DZ1, one end of the capacitor C2 and the anode of the voltage stabilizing diode DZ1 are connected with the inverting input end of the operational amplifier AR2, the other end of the capacitor C2 is connected with one end of the resistor R6, and the other end of the resistor R6 and the cathode of the voltage stabilizing diode DZ1 are connected with the emitting electrode of the triode VT 1.
5. The dosage-control system for the production of optical brightener OB-1 according to claim 4, characterized in that: the noise reduction circuit comprises an inductor L1 and a capacitor C3, one end of the inductor L1 is connected with an emitting electrode of the triode VT1, and the other end of the inductor L1 is connected with the controller and is grounded through the capacitor C3 and the resistor R7 which are connected in parallel.
6. The batching control system for the production of optical brighteners OB-1 according to claim 5, characterized in that: the controller adopts a singlechip with A/D conversion function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221970387.XU CN218077795U (en) | 2022-07-28 | 2022-07-28 | Batching control system for production of fluorescent whitening agent OB-1 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221970387.XU CN218077795U (en) | 2022-07-28 | 2022-07-28 | Batching control system for production of fluorescent whitening agent OB-1 |
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| Publication Number | Publication Date |
|---|---|
| CN218077795U true CN218077795U (en) | 2022-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221970387.XU Active CN218077795U (en) | 2022-07-28 | 2022-07-28 | Batching control system for production of fluorescent whitening agent OB-1 |
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| CN (1) | CN218077795U (en) |
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2022
- 2022-07-28 CN CN202221970387.XU patent/CN218077795U/en active Active
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