Papermaking chemical metering and detecting device

Abstract

The utility model relates to the field of papermaking chemical metering, in particular to a papermaking chemical metering and detecting device which comprises a metering hopper, the lower end of the metering hopper is fixedly connected with a discharging connecting pipe, a control valve is arranged on the discharging connecting pipe, and the lower end of the discharging connecting pipe is fixedly connected with a detecting pipe. A liquid flow sensor is fixedly mounted on the surface of the detection pipe, a discharge pipe head is fixedly connected to the lower end of the detection pipe, a sleeve seat is fixedly mounted on the surface of the discharge pipe head, and a liquid concentration sensor is fixedly mounted on the left side of the upper end of the sleeve seat; according to the utility model, the liquid flow sensor is used for detecting the flow of a chemical solution flowing through the detection pipe, the liquid concentration sensor is matched for detecting and calculating the specific condition of the liquid, and the liquid pollution detector is used for detecting the cleanliness of the liquid, so that the papermaking chemical solution is conveniently detected while metering; and the use of a chemical solution which is volatilized, diluted or has impurities in the storage process is avoided, and the production and processing quality is ensured.

Description

Technical Field

[0001] The utility model relates to the field of papermaking chemical metering, in particular to a papermaking chemical metering and detection device. Background Art

[0002] Papermaking chemicals refer to the general term for various chemical agents and additives used in the papermaking process. These chemicals and additives play a vital role in pulping, papermaking and paper processing. Papermaking chemicals can improve paper quality and production efficiency, improve operating conditions, reduce manufacturing costs, increase economic benefits, and develop new paper grades. Usually, the addition of papermaking chemicals requires ensuring the accuracy of the added metering.

[0003] At present, when preparing and measuring papermaking chemicals, it is necessary to add them while observing the measurement. The operation is complicated and prone to errors. It is not convenient to use. At the same time, the measured papermaking chemicals need to be tested in advance. Chemical volatilization, dilution or impurities may affect production quality.

[0004] Therefore, in view of the fact that the preparation and measurement of the above-mentioned papermaking chemicals are complicated, prone to errors, and not convenient to use, and that the measured papermaking chemicals need to be tested in advance to avoid volatilization, dilution or the presence of impurities in the chemicals, which affect the production quality, a papermaking chemical metering and detection device can be designed. Utility Model Content

[0005] In order to overcome the problems of complex operation, easy errors and lack of convenience in the preparation and measurement of papermaking chemicals, it is necessary to test the measured papermaking chemicals in advance to avoid volatilization, dilution or impurities of chemicals that affect production quality.

[0006] The technical solution of the utility model is: a papermaking chemical metering and detection device, including a metering hopper, the lower end of the metering hopper is fixedly connected to a discharge connecting pipe, the discharge connecting pipe is provided with a control valve, the lower end of the discharge connecting pipe is fixedly connected to a detection tube, a liquid flow sensor is fixedly installed on the surface of the detection tube, the lower end of the detection tube is fixedly connected to a discharge pipe head, a sleeve is fixedly installed on the surface of the discharge pipe head, a liquid concentration sensor is fixedly installed on the left side of the upper end of the sleeve, a liquid contamination detector is fixedly installed on the right side of the upper end of the sleeve, a control motor is provided on the right side of the inside of the control valve, a transmission shaft is fixedly installed on the output end of the control motor, a valve cavity is opened on the left side inside the control valve, and a valve core is provided inside the valve cavity.

[0007] Preferably, the metering hopper is convenient for adding papermaking chemical solution, the liquid flow sensor can detect the flow of the papermaking chemical solution, and is convenient for cooperating with the liquid concentration sensor to detect and calculate the specific situation of the liquid. At the same time, the liquid contamination detector can detect the cleanliness of the liquid, thereby ensuring that the quality of the papermaking chemical solution used is qualified. The liquid flow sensor can also cooperate with the control valve. When the liquid flow sensor detects that the set metering value is reached, the control motor can drive the valve core to rotate, block the valve cavity, and ensure the accuracy of the metering chemical solution.

[0008] Preferably, a control panel is fixedly installed at the front end of the metering hopper, and the discharge pipe head is designed in an L-shaped structure.

[0009] Preferably, the lower end of the liquid concentration sensor is fixedly connected to a concentration detection rod, and the lower end of the concentration detection rod extends to the interior of the discharge pipe head where a concentration detection head is fixedly installed.

[0010] Preferably, the lower end of the liquid contamination detector is fixedly connected to a contamination detection rod, and the lower end of the contamination detection rod extends to the interior of the discharge pipe head where a contamination detection head is fixedly installed.

[0011] Preferably, the control motor is electrically connected to the liquid flow sensor, and the transmission shaft is rotationally connected to the control valve.

[0012] Preferably, a sealing ring is provided on the surface of the transmission shaft, and a wear-resistant ring is provided on the surface of the transmission shaft on the side of the sealing ring. Both the sealing ring and the wear-resistant ring are adapted to the control valve.

[0013] Preferably, the left end of the transmission shaft extends to the interior of the valve cavity and is fixedly connected to the valve core. The valve core is designed to have a spherical structure. The valve core is rotatably connected to the valve cavity, and a through groove is provided on the valve core.

[0014] Beneficial effects of the utility model:

[0015] The papermaking chemical metering and detection device detects the flow of the chemical solution flowing through the detection tube through a liquid flow sensor, cooperates with the liquid concentration sensor to detect and calculate the specific conditions of the liquid, and uses a liquid contamination detector to detect the cleanliness of the liquid. This facilitates the detection of the papermaking chemical solution while measuring, avoids the use of chemical solutions that evaporate, are diluted, or contain impurities during storage, and is beneficial to ensuring production and processing quality. The liquid flow sensor is combined with a control valve. When the liquid flow sensor detects that the set metering value has been reached, the control motor is used to drive the transmission shaft to rotate, causing the through groove of the valve core to rotate, thereby blocking the valve cavity, realizing automatic and accurate metering of the chemical solution, and improving the convenience of using the papermaking chemical metering and detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1Shown is a schematic diagram of the three-dimensional structure of the papermaking chemical metering and detection device of the present utility model;

[0017] Figure 2 Shown is a schematic diagram of the three-dimensional structure of the discharge pipe head of the present utility model;

[0018] Figure 3 Shown is a schematic diagram of the three-dimensional structure of the valve cavity of the present utility model;

[0019] Figure 4 Shown is a schematic diagram of the three-dimensional structure of the control valve of the utility model;

[0020] Figure 5 What is shown is a schematic diagram of the three-dimensional structure of the valve core of the present invention.

[0021] Explanation of the accompanying symbols: 1. Measuring hopper; 2. Discharge connecting pipe; 3. Control valve; 4. Detection tube; 5. Liquid flow sensor; 6. Discharge pipe head; 7. Sleeve; 8. Liquid concentration sensor; 9. Liquid contamination detector; 10. Control motor; 11. Drive shaft; 12. Valve chamber; 13. Valve core; 14. Concentration detection rod; 15. Concentration detection head; 16. Contamination detection rod; 17. Contamination detection head; 18. Sealing ring; 19. Wear-resistant ring; 20. Through groove. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] See also Figure 1-Figure 5 The utility model provides an embodiment: a papermaking chemical metering and detection device, including a metering hopper 1, the lower end of the metering hopper 1 is fixedly connected to a discharge connecting pipe 2, the discharge connecting pipe 2 is provided with a control valve 3, the lower end of the discharge connecting pipe 2 is fixedly connected to a detection tube 4, a liquid flow sensor 5 is fixedly installed on the surface of the detection tube 4, the lower end of the detection tube 4 is fixedly connected to a discharge pipe head 6, a sleeve 7 is fixedly installed on the surface of the discharge pipe head 6, a liquid concentration sensor 8 is fixedly installed on the left side of the upper end of the sleeve 7, a liquid contamination detector 9 is fixedly installed on the right side of the upper end of the sleeve 7, a control motor 10 is provided on the right side of the control valve 3, a transmission shaft 11 is fixedly installed on the output end of the control motor 10, a valve cavity 12 is opened on the left side of the control valve 3, and a valve core 13 is provided inside the valve cavity 12.

[0024] See also Figure 1-Figure 2In this embodiment, a control panel is fixedly installed at the front end of the metering hopper 1, and the discharge pipe head 6 is designed in an L-shaped structure. The lower end of the liquid concentration sensor 8 is fixedly connected to a concentration detection rod 14, and the lower end of the concentration detection rod 14 extends to the interior of the discharge pipe head 6 and is fixedly installed with a concentration detection head 15. The lower end of the liquid contamination detector 9 is fixedly connected to a pollution degree detection rod 16, and the lower end of the pollution degree detection rod 16 extends to the interior of the discharge pipe head 6 and is fixedly installed with a pollution degree detection head 17. The liquid flow sensor 5 detects the flow rate of the chemical solution flowing through the detection tube 4, and cooperates with the liquid concentration sensor 8 to detect and calculate the specific situation of the liquid. At the same time, the liquid contamination detector 9 is used to detect the cleanliness of the liquid, which is convenient for detecting the papermaking chemical solution while measuring, avoiding the use of chemical solutions that evaporate, dilute or contain impurities during storage, which is beneficial to ensuring production and processing quality.

[0025] See also Figure 1-Figure 5 In this embodiment, the control motor 10 is electrically connected to the liquid flow sensor 5, the transmission shaft 11 is rotatably connected to the control valve 3, a sealing ring 18 is provided on the surface of the transmission shaft 11, and a wear-resistant ring 19 is provided on the surface of the transmission shaft 11 on the side of the sealing ring 18. The sealing ring 18 and the wear-resistant ring 19 are both adapted to the control valve 3. The left end of the transmission shaft 11 extends into the interior of the valve cavity 12 and is fixedly connected to the valve core 13. The valve core 13 is designed in a spherical structure. The valve core 13 is rotatably connected to the valve cavity 12. A through groove 20 is opened on the valve core 13. The liquid flow sensor 5 cooperates with the control valve 3. When the liquid flow sensor 5 detects that the set metering value has been reached, the control motor 10 is used to drive the transmission shaft 11 to rotate, so that the through groove 20 of the valve core 13 rotates, thereby blocking the valve cavity 12, realizing automatic and accurate metering of the chemical solution, which is conducive to improving the convenience of using the papermaking chemical metering and detection device.

[0026] When working, set up the measuring hopper 1 and other containers, and pour the papermaking chemical solution into the measuring hopper 1. The liquid flow sensor 5 is used to detect the flow of the chemical solution flowing through the detection tube 4, and the liquid concentration sensor 8 is used to detect and calculate the specific situation of the liquid. At the same time, the liquid contamination detector 9 is used to detect the cleanliness of the liquid, which is convenient for detecting the papermaking chemical solution while measuring, and avoids using chemical solutions that evaporate, dilute or contain impurities during storage. The liquid flow sensor 5 is used to cooperate with the control valve 3. When the liquid flow sensor 5 detects that the set metering value has been reached, the control motor 10 is used to drive the transmission shaft 11 to rotate, so that the through groove 20 of the valve core 13 rotates, thereby blocking the valve chamber 12, and realizing automatic and accurate metering of the chemical solution.

[0027] Through the above steps, the liquid flow sensor 5 cooperates with the liquid concentration sensor 8 to detect the specific conditions of the liquid, and the liquid contamination detector 9 is used to detect the cleanliness of the liquid to ensure that the quality of the chemical solution used is qualified. When the liquid flow sensor 5 detects that the set metering value has been reached, the control motor 10 is used to drive the valve core 13 to rotate, blocking the valve chamber 12 to ensure the accuracy of the metered chemical solution, so as to solve the problems of complicated operation, easy error and insufficient convenience in the preparation and metering of papermaking chemicals. At the same time, it is necessary to test the measured papermaking chemicals in advance to avoid volatilization, dilution or the presence of impurities of chemicals, which affect production quality.

Claims

1. A papermaking chemical metering and detection device, comprising a metering hopper (1), characterized in that: The lower end of the metering hopper (1) is fixedly connected to a discharge connecting pipe (2), a control valve (3) is provided on the discharge connecting pipe (2), the lower end of the discharge connecting pipe (2) is fixedly connected to a detection pipe (4), a liquid flow sensor (5) is fixedly installed on the surface of the detection pipe (4), the lower end of the detection pipe (4) is fixedly connected to a discharge pipe head (6), a sleeve (7) is fixedly installed on the surface of the discharge pipe head (6), a liquid concentration sensor (8) is fixedly installed on the left side of the upper end of the sleeve (7), a liquid contamination detector (9) is fixedly installed on the right side of the upper end of the sleeve (7), a control motor (10) is provided on the right side of the control valve (3), a transmission shaft (11) is fixedly installed on the output end of the control motor (10), a valve cavity (12) is opened on the left side of the control valve (3), and a valve core (13) is provided inside the valve cavity (12).

2. The papermaking chemical metering and detection device according to claim 1, characterized in that: A control panel is fixedly mounted on the front end of the metering hopper (1), and the discharge pipe head (6) is designed in an L-shaped structure.

3. The papermaking chemical metering and detection device according to claim 2, characterized in that: The lower end of the liquid concentration sensor (8) is fixedly connected to a concentration detection rod (14), and the lower end of the concentration detection rod (14) extends to the interior of the discharge pipe head (6) where a concentration detection head (15) is fixedly installed.

4. The papermaking chemical metering and detection device according to claim 3, characterized in that: The lower end of the liquid contamination detector (9) is fixedly connected to a contamination detection rod (16), and the lower end of the contamination detection rod (16) extends to the interior of the discharge pipe head (6) where a contamination detection head (17) is fixedly installed.

5. The papermaking chemical metering and detection device according to claim 1, characterized in that: The control motor (10) is electrically connected to the liquid flow sensor (5), and the transmission shaft (11) is rotationally connected to the control valve (3).

6. The papermaking chemical metering and detection device according to claim 5, characterized in that: A sealing ring (18) is provided on the surface of the transmission shaft (11), and a wear-resistant ring (19) is provided on the surface of the transmission shaft (11) at the side of the sealing ring (18). Both the sealing ring (18) and the wear-resistant ring (19) are adapted to the control valve (3).

7. The papermaking chemical metering and detection device according to claim 6, characterized in that: The left end of the transmission shaft (11) extends to the interior of the valve cavity (12) and is fixedly connected to the valve core (13). The valve core (13) is designed to be spherical in structure. The valve core (13) is rotatably connected to the valve cavity (12). A through groove (20) is provided on the valve core (13).

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