CN210066360U

CN210066360U - Papermaking bactericide adding system

Info

Publication number: CN210066360U
Application number: CN201920441646.1U
Authority: CN
Inventors: 陈捷; 陈水旭
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2020-02-14
Anticipated expiration: 2029-04-03

Abstract

The utility model discloses a papermaking is with germicide interpolation system, it includes that first income pencil, second go into pencil, inlet tube, PLC logic controller and medicine interpolation pipeline, it has dosing pump A, adds medicine pneumatic valve A, static mixer and PH detector to establish ties in proper order on the first pencil of going into, it has dosing pump B and adds medicine pneumatic valve B to establish ties in proper order on the second goes into the pencil, it has force (forcing) pump and electromagnetic flowmeter to establish ties in proper order on the inlet tube. The utility model discloses can enough realize according to the setting value automatic reagent feeding of PH, can be according to the proportion and the concentration automatic blending of medicine and clear water again to dilute on line and throw according to the settlement time of every dosing point after mixing and add.

Description

Papermaking bactericide adding system

Technical Field

The utility model relates to a papermaking sterilization technical field, more specifically say, relate to a papermaking uses germicide interpolation system.

Background

Currently, bactericide addition systems are widely used in the paper industry, which can reduce and eliminate microbial activity, prevent biofilm formation, and improve the cleanliness of paper making processes and systems. However, the drug effect of the bactericide is important, the drug concentration and the pH value of the bactericide are critical, the quality of paper is damaged when the concentration is too high, the paper is polluted, the optimal effects of sterilization and cleaning cannot be achieved when the concentration is too low, whether the bactericide concentration is qualified or not is determined by the pH value of the mixed liquid medicine, but in the prior art, a bactericide adding system cannot monitor the proportion between the drug and the clear water and the pH value of the mixed bactericide, so that the concentration of each added drug also generates errors, the concentration of the proportioned bactericide is generated errors, and the drug effect is badly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes prior art's is not enough, provides a papermaking uses germicide interpolation system, can enough realize the automatic reagent feeding, again can the mixing ratio between automatic control medicine and the clear water formulate a quantitative concentration.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a bactericide adding system for papermaking comprises a first medicine inlet pipe, a second medicine inlet pipe, a water inlet pipe, a PLC (programmable logic controller) and a medicine adding pipe, wherein a medicine adding pump A, a medicine adding pneumatic valve A, a static mixer and a PH detector are sequentially connected in series on the first medicine inlet pipe, a medicine adding pump B and a medicine adding pneumatic valve B are sequentially connected in series on the second medicine inlet pipe, a booster pump and an electromagnetic flowmeter are sequentially connected in series on the water inlet pipe, the medicine adding pneumatic valve B is communicated with the first medicine inlet pipe between the medicine adding pneumatic valve A and the static mixer through the second medicine inlet pipe, the electromagnetic flowmeter is respectively communicated with the first medicine inlet pipe and the second medicine inlet pipe through the water inlet pipe, a rotor flow meter A is arranged between the first medicine inlet pipe and the electromagnetic flowmeter, a rotor flow meter B is arranged between the second medicine inlet pipe and the electromagnetic flowmeter, the medicine adding pump A, the medicine adding pump B and the booster pump are electrically connected with the PLC through a frequency converter and are regulated by the PLC, the electromagnetic flow meter feeds back a flow signal to the PLC, the PH detector feeds back a PH value signal to the PLC, the PH detector is connected with the medicine adding pipe, the medicine adding pipe is provided with an outlet pneumatic valve, and the outlet pneumatic valve is controlled by the PLC.

Preferably, the first medicine inlet pipe and the second medicine inlet pipe are both provided with a correction measuring cylinder.

Preferably, a damper is arranged on a first medicine inlet pipe between the medicine feeding pump A and the medicine feeding pneumatic valve A and a second medicine inlet pipe between the medicine feeding pump B and the medicine feeding pneumatic valve B.

Preferably, the number of the medicine adding pipes is several, and the several medicine adding pipes are arranged in parallel and are added with chemicals at the time set by the PLC logic controller.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a first medicine pipe and second medicine pipe of going into can be filled into different chemicals, its inlet tube adopts electromagnetic flowmeter to carry out constant current control and flow control to clear water flow, and dosing pump A, dosing pump B and force (forcing) pump all are connected through the converter electricity and PLC logic controller speed governing, and electromagnetic flowmeter feeds back flow signal to PLC logic controller, can control the volume of different chemicals and the volume of clear water, and can adjust the concentration ratio of clear water to different chemicals through observing rotameter A and rotameter B and come manual regulation valve opening, and PH detector feeds back PH value signal to PLC logic controller, when PH detector detects that the PH value does not accord with the technology, then can control dosing pump A by PLC logic controller, dosing pump B, in order to reduce the concentration error, in order to reach the chemical of output ration, thereby reach the concentration ration control of germicide, and mixed to achieve the concentration of the bactericide predetermined by the sterilization process.

Drawings

Fig. 1 is a schematic structural diagram of a bactericide adding system for papermaking according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. Only this statement, the utility model discloses the upper and lower, left and right, preceding, back, inside and outside etc. position words that appear or will appear in the text only use the utility model discloses an attached drawing is the benchmark, and it is not right the utility model discloses a concrete restriction.

The invention is further described with reference to the accompanying drawings and the detailed description below:

referring to fig. 1, a papermaking bactericide adding system comprises a first medicine inlet pipe 1, a second medicine inlet pipe 2, a water inlet pipe 3, a PLC logic controller 35 and a medicine adding pipe 6, wherein a medicine adding pump a11, a medicine adding pneumatic valve a13, a static mixer 4 and a PH detector 5 are sequentially connected in series on the first medicine inlet pipe 1, a medicine adding pump B21 and a medicine adding pneumatic valve B23 are sequentially connected in series on the second medicine inlet pipe 2, a booster pump 30 and an electromagnetic flowmeter 31 are sequentially connected in series on the water inlet pipe 3, the medicine adding pneumatic valve B23 is communicated with the first medicine inlet pipe 1 between the medicine adding pneumatic valve a13 and the static mixer 4 through the second medicine inlet pipe 2, the electromagnetic flowmeter 31 is respectively communicated with the first medicine inlet pipe 1 and the second medicine inlet pipe 2 through the water inlet pipe 3, a flowmeter rotor a32 is arranged between the first medicine inlet pipe 1 and the electromagnetic flowmeter 31, a rotor B33 is arranged between the second medicine inlet pipe 2 and the electromagnetic flowmeter 31, and a medicine adding pump a11 is arranged between the electromagnetic flowmeter 31, The dosing pump B21 and the pressure pump 30 are electrically connected with the PLC logic controller 35 through the frequency converter 34 for speed regulation, the electromagnetic flowmeter 31 feeds back flow signals to the PLC logic controller 35, the PH detector 5 feeds back PH value signals to the PLC logic controller 35, the PH detector 5 is connected with the medicine adding pipe 6, the medicine adding pipe 6 is provided with an outlet pneumatic valve 60, and the outlet pneumatic valve 60 is controlled by the PLC logic controller 35 and is used for adding chemical medicines at the set time of the PLC logic controller 35.

In the present embodiment, preferably, the first medicine inlet pipe 1 and the second medicine inlet pipe 2 are both provided with a calibration measuring cylinder 10, and the chemical adding amount can be calibrated and the liquid level of the chemical storage barrel can be observed through the calibration measuring cylinder 10.

In the embodiment, preferably, the first medicine inlet pipe 1 between the dosing pump a11 and the dosing pneumatic valve a13 and the second medicine inlet pipe 2 between the dosing pump B21 and the dosing pneumatic valve B23 are both provided with the damper 12, so that after pulsating fluid from the dosing pump a11 and the dosing pump B21 enters the damper 12, the pulsating fluid can be absorbed instantly due to compressibility of gas, stable liquid flow and pressure can be obtained in a system pipeline, pipeline vibration is reduced, noise is reduced, pipeline safety is improved, and flow is stable and easy to control.

In addition, because paper-making sterilization needs a plurality of sterilization, the effect can be achieved, in this embodiment, the plurality of medicine adding pipes 6 are arranged in parallel, the outlet ends of the medicine adding pipes 6 are provided with a plurality of adding points which are arranged in parallel and controlled by the PLC logic controller 35, and chemical medicines are added according to the set time of each adding point.

In practical application, in the paper making process, chemicals to be mixed are added into the chemical inlet of the first chemical inlet pipe 1 and the second chemical inlet pipe 2, the calibration measuring cylinder 10 can calibrate the dosage and observe the liquid level of the chemical storage barrel, the water inlet pipe 3 can input clean water, the dosage pump A11, the dosage pump B21 and the pressure pump 30 are electrically connected with the PLC logical controller 35 through the frequency converter 34 for speed regulation, the electromagnetic flow meter 31 feeds back flow signals to the PLC logical controller 35, the PLC logical controller 35 is preset with a PH value and the clean water dosage, then the PLC logical controller 35 can control the output amount of the dosage pump A11, the dosage pump B21 and the pressure pump 30 respectively, meanwhile, according to the requirement of concentration ratio, a production worker can observe the flow of the rotor flow meter A32 and the flow of the rotor flow meter B33 to manually adjust the valve opening degree to control the clean water flow rate, thereby flexibly proportioning the chemicals, afterwards, two kinds of chemicals and clear water are after through the intensive mixing of static mixer 4, feedback pH value signal to PLC logic controller 35 by PH detector 5, PLC logic controller 35 compares the pH value after two kinds of chemicals are mixed according to the pH value of predetermineeing into, thereby control converter 34 and adjust the medicine feed amount of dosing pump A11 and B, the ratio becomes the germicide of a quantitative concentration, and finally, each export pneumatic valve 60 is opened according to the time that PLC logic controller 35 set for to the germicide after the mixture, thereby add the germicide to every addition pipeline.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. The utility model provides a papermaking uses germicide interpolation system, its characterized in that, it includes that first income pencil, second go into pencil, inlet tube, PLC logic controller and medicine add the pipe, it has dosing pump A, adds medicine pneumatic valve A, static mixer and PH detector to establish ties in proper order on the first pencil of going into, it has dosing pump B and adds medicine pneumatic valve B to establish ties in proper order on the second goes into the pencil, it has force (forcing) pump and electromagnetic flowmeter to establish ties in proper order on the inlet tube, it communicates in the first pencil of going into between medicine pneumatic valve A and the static mixer through the second to go into pencil pneumatic valve B, electromagnetic flowmeter communicates first pencil and second through the inlet tube respectively and goes into the pencil, be equipped with rotor flow meter A between first pencil of going into and the electromagnetic flowmeter, be equipped with rotor flow meter B between second pencil and the electromagnetic flowmeter, dosing pump A, The medicine adding pump B and the pressure pump are both electrically connected through a frequency converter and are regulated in speed by a PLC (programmable logic controller), the electromagnetic flow meter feeds back flow signals to the PLC, the PH detector feeds back PH value signals to the PLC, the PH detector is connected with the medicine adding pipe, the medicine adding pipe is provided with an outlet pneumatic valve, and the outlet pneumatic valve is controlled by the PLC.

2. The papermaking bactericide adding system according to claim 1, wherein the first medicine inlet pipe and the second medicine inlet pipe are provided with calibration measuring cylinders.

3. The papermaking bactericide adding system according to claim 1, wherein a damper is arranged on each of a first medicine inlet pipe between the medicine adding pump A and the medicine adding pneumatic valve A and a second medicine inlet pipe between the medicine adding pump B and the medicine adding pneumatic valve B.

4. The papermaking bactericide adding system according to claim 1, wherein the number of the medicine adding pipes is plural, and the plural medicine adding pipes are arranged in parallel and are used for adding chemicals at a time set by the PLC logic controller.