A moisture detection device for sodium diacetate production

Abstract

This utility model discloses a moisture detection device for sodium diacetate production, including a sodium diacetate silo. The outlet of the sodium diacetate silo is connected to a discharge pipe via a pneumatic valve. The discharge pipe is connected to a detection box, and the detection box contains a detection chamber communicating with the discharge pipe. The detection chamber contains a moisture measuring component, which includes several microwave moisture sensors arranged vertically at intervals. A discharge control valve is located at the bottom of the detection chamber, and the discharge control valve is sequentially connected to the discharge pipe, a negative pressure fan, and a recovery box. Several purging nozzles are also arranged around the detection chamber within the detection box. These purging nozzles are used to blow high-pressure gas onto the microwave moisture sensors for surface cleaning. This utility model avoids errors caused by manual contact, achieving low-cost, high-precision moisture content measurement without manual intervention, offering high accuracy and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sodium diacetate production technology, and in particular to a moisture detection device for sodium diacetate production. Background Technology

[0002] Sodium diacetate, as a food preservative, has its moisture content directly affecting its preservative effect and caking resistance. During the production and preparation of sodium diacetate, moisture content testing is necessary to determine its concentration. Traditional testing methods require manual sampling and the use of handheld moisture meters, which is time-consuming and labor-intensive. Furthermore, sample contact with air leads to moisture absorption, affecting the accuracy of the test. Therefore, there is an urgent need for a device that can quickly and accurately detect the moisture content of sodium diacetate. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a moisture detection device for sodium diacetate production, which aims to solve the technical problems of time-consuming and labor-intensive manual sampling and detection and low detection accuracy in the prior art.

[0004] The technical solution of this utility model is: a moisture detection device for sodium diacetate production, including a sodium diacetate silo, the outlet of which is connected to a discharge pipe via a pneumatic valve, the discharge pipe being connected to a detection box, the detection box containing a detection chamber communicating with the discharge pipe, the detection chamber containing a moisture measuring component, the moisture measuring component including several microwave moisture sensors arranged vertically at intervals, the bottom of the detection chamber containing a discharge control valve, the discharge control valve being sequentially connected to a discharge pipe, a negative pressure fan, and a recovery box; several purging nozzles are also provided around the detection chamber within the detection box, the purging nozzles being used to blow high-pressure gas onto the microwave moisture sensors for surface cleaning.

[0005] Furthermore, the inner wall of the detection cavity in this invention is coated with polytetrafluoroethylene.

[0006] Furthermore, in this utility model, several microwave moisture sensors are connected in series by cables, and the upper and lower ends of the cables are respectively fixedly installed at the upper and lower ends of the detection cavity by positioning seats. The cables pass through the positioning seats, and the positioning seats are also provided with sealing rings that fit tightly with the cables.

[0007] Furthermore, in this utility model, the detection box on one side of the upper and lower positioning seats is respectively provided with a sealed protective sleeve, and the cable passes through the sealed protective sleeve and extends to the outside of the detection box.

[0008] Furthermore, the microwave moisture sensor described in this invention has a built-in temperature sensor.

[0009] Furthermore, the cable described in this utility model is a tensile-resistant cable.

[0010] Furthermore, in this invention, a plurality of the purge nozzles are evenly arranged around a plurality of the microwave moisture sensors, and each purge nozzle is connected to an air source through a purge pipe.

[0011] Furthermore, the gas source described in this utility model is nitrogen.

[0012] Compared with the prior art, this utility model has the following advantages: This utility model adopts a closed pneumatic sample introduction, which can avoid errors caused by manual contact. After the material falls into the detection chamber, multiple microwave moisture sensors can be used to monitor the material in the entire detection chamber at multiple points, thereby achieving low-cost and high-precision moisture content measurement. The microwave moisture sensor has a built-in temperature sensor. Based on the data measured by the temperature sensor, the temperature compensation algorithm can compensate the measured value of the microwave moisture sensor, further improving the measurement accuracy. After detection, the waste material is drawn to the recycling box by a negative pressure fan, and the purging nozzle can clean the residue on the sensor surface to prepare for the next detection. No manual intervention is required, resulting in high accuracy and efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 A magnified view of part A in the middle.

[0015] The components include: 1. Sodium diacetate silo; 2. Pneumatic valve; 3. Discharge pipe; 4. Detection box; 4a. Detection chamber; 5. Moisture measurement component; 501. Microwave moisture sensor; 502. Cable; 6. Discharge control valve; 7. Discharge pipe; 8. Negative pressure fan; 9. Recovery box; 10. Purge nozzle; 11. Positioning seat; 12. Sealing ring; 13. Sealing protective sleeve. Detailed Implementation

[0016] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0017] Example:

[0018] The accompanying drawings illustrate a specific embodiment of the moisture detection device for sodium diacetate production according to this utility model. Figure 1 It mainly includes a sodium diacetate silo 1. The outlet of the sodium diacetate silo 1 is connected to the discharge pipe 3 through a pneumatic valve 2. The pneumatic valve 2 is used to control the discharge. When the pneumatic valve 2 is opened, the material in the sodium diacetate silo 1 is output through the discharge pipe 3.

[0019] The discharge pipe 3 is connected to the detection box 4. The detection box 4 has a detection chamber 4a that is connected to the discharge pipe 3. The inner wall of the detection chamber 4a is coated with polytetrafluoroethylene, which is both corrosion-resistant and easy to clean.

[0020] The detection chamber 4a is equipped with a moisture measurement component 5, which includes several microwave moisture sensors 501 arranged at equal intervals. These microwave moisture sensors 501 are connected in series via cables 502. Figure 1 , Figure 2 The upper and lower ends of the cable 502 are fixedly installed at the upper and lower ends of the detection chamber 4a by positioning seats 11, respectively. The cable 502 passes through the positioning seats 11, and the positioning seats 11 are also provided with sealing rings 12 that fit tightly with the cable 502. The sealing rings 12 enable the cable 502 to be better fixed, and the positioning seats 11 will not affect the falling of materials. The detection box 4 on one side of the upper and lower positioning seats 11 is also provided with sealing protective sleeves 13, and the cable 502 passes through the sealing protective sleeves 13 and extends to the outside of the detection box 4.

[0021] In this embodiment, a temperature sensor is built into the microwave moisture sensor 501. The temperature compensation algorithm can be used to compensate the measured value of the microwave moisture sensor 501 based on the data measured by the temperature sensor, thereby further improving the measurement accuracy.

[0022] In this embodiment, cable 502 is a tensile-resistant cable, which can enhance tensile strength.

[0023] When detecting the moisture content of materials, the microwave moisture sensor 501 emits a microwave signal of a certain amplitude. The microwave signal penetrates the material; part of the signal is absorbed by the material, and the other part is reflected. The reflected signal is also received by the microwave moisture sensor 501. The moisture content of the material can be measured by the reflected signal measured by the microwave moisture sensor 501, which is existing technology and will not be described in detail here. This invention uses multiple microwave moisture sensors 501 to monitor the material at multiple points within the entire detection chamber 4a, enabling low-cost and high-precision moisture content measurement.

[0024] The bottom of the detection chamber 4a is equipped with a discharge control valve 6, which is connected in sequence to the discharge pipe 7, the negative pressure fan 8, and the recovery box 9. After the detection is completed, the discharge control valve 6 is opened, and the waste material is drawn into the recovery box 9 by the negative pressure fan 8.

[0025] Inside the detection chamber 4, around the detection cavity 4a, are several purge nozzles 10. These nozzles 10 are used to blow high-pressure gas onto the microwave moisture sensor 501 for surface cleaning. The purge nozzles 10 are evenly arranged around the microwave moisture sensors 501, with at least two nozzles 10 distributed around each sensor. Preferably, four or more nozzles 10 can be evenly arranged around each sensor to fully cover it and ensure effective purging. Each nozzle 10 is connected to a nitrogen gas source via a purge pipe.

[0026] After the material is recovered, the purging nozzle 10 can be opened to clean the residue on the sensor surface, preparing for the next test. No manual intervention is required, and the process is accurate and efficient.

[0027] Of course, the above embodiments are only for illustrating the technical concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All modifications made in accordance with the spirit and essence of the main technical solution of this utility model should be covered within the protection scope of this utility model.

Claims

1. A moisture detection device for sodium diacetate production, characterized in that: The device includes a sodium diacetate silo (1), the outlet of which is connected to a discharge pipe (3) via a pneumatic valve (2). The discharge pipe (3) is connected to a detection box (4). The detection box (4) contains a detection chamber (4a) that communicates with the discharge pipe (3). The detection chamber (4a) contains a moisture measuring component (5). The moisture measuring component (5) includes several microwave moisture sensors (501) arranged vertically at intervals. The bottom of the detection chamber (4a) is provided with a discharge control valve (6). The discharge control valve (6) is connected in sequence to a discharge pipe (7), a negative pressure fan (8), and a recovery box (9). The detection box (4) is also provided with several purging nozzles (10) around the detection chamber (4a). The purging nozzles (10) are used to blow high-pressure gas onto the microwave moisture sensors (501) for surface cleaning.

2. The moisture detection device for sodium diacetate production according to claim 1, characterized in that: The inner wall of the detection chamber (4a) is coated with polytetrafluoroethylene.

3. The moisture detection device for sodium diacetate production according to claim 1, characterized in that: Several microwave moisture sensors (501) are connected in series by cables (502). The upper and lower ends of the cables (502) are fixedly installed at the upper and lower ends of the detection cavity (4a) by positioning seats (11). The cables (502) pass through the positioning seats (11). The positioning seats (11) are also provided with sealing rings (12) that fit tightly with the cables (502).

4. The moisture detection device for sodium diacetate production according to claim 3, characterized in that: The detection box (4) on one side of the upper and lower positioning seats (11) is provided with a sealing protective sleeve (13), and the cable (502) passes through the sealing protective sleeve (13) and extends to the outside of the detection box (4).

5. A moisture detection device for sodium diacetate production according to claim 4, characterized in that: The microwave moisture sensor (501) has a built-in temperature sensor.

6. The moisture detection device for sodium diacetate production according to claim 4, characterized in that: The cable (502) is a tensile-resistant cable.

7. A moisture detection device for sodium diacetate production according to claim 1, characterized in that: A plurality of the purge nozzles (10) are evenly arranged around a plurality of the microwave moisture sensors (501), and each of the purge nozzles (10) is connected to an air source through a purge pipe.

8. A moisture detection device for sodium diacetate production according to claim 7, characterized in that: The gas source is nitrogen.

Images