Slice moisture-proof device for filter pressing difference test

Abstract

The embodiment of the utility model provides a slicing moisture-proof device for a filter pressing difference test, which relates to the technical field of color master batch production and comprises a material storage cavity, an air inlet is arranged at the lower end of the material storage cavity, an exhaust pipe is arranged at the upper end of the material storage cavity, a material discharging seat is arranged at the lower end of the material storage cavity, and the material storage cavity is connected with the material discharging seat through a flange. The lower portion in the material storage cavity is provided with an air inlet, a nitrogen nozzle sprays dry nitrogen to form a protective atmosphere, the slices are prevented from making contact with moisture in air, a discharging seat of the material storage cavity is provided with a sealing valve, the sealing valve is opened during sample injection, the slices enter a pipeline of a test instrument under the action of a nitrogen protective layer, and the material storage cavity is further provided with an exhaust pipe. The device is used for discharging air in the material storage cavity, the nitrogen environment in the material storage cavity is kept, the slices are protected by nitrogen, the problem that the slices are affected with damp at the sample inlet is effectively avoided, and the accuracy of a test result is ensured.

Description

Technical Field

[0001] This utility model relates to the field of color masterbatch production technology, and in particular to a moisture-proof device for slices used in pressure filtration difference testing. Background Technology

[0002] Filtration performance testing is an important means of evaluating the dispersion performance of fillers in masterbatches, and the test results directly affect the product quality and safety in use. During the filtration performance test, the sample to be tested needs to enter the testing instrument through the inlet, but the slice at the inlet position is easily affected by moisture, which can affect the test results.

[0003] Existing slicing feeding devices cannot effectively prevent slices from getting damp at the inlet of the filtration performance tester, affecting the accuracy of the test results. Furthermore, the feeding device has limited protection for the slices and cannot keep the slices dry for a long time. Utility Model Content

[0004] The purpose of this invention is to provide a moisture-proof device for slices used in differential pressure filtration testing, which can avoid the problem that the sample inlet of the filtration performance tester is easily affected by moisture and absorbs moisture from the air, thus affecting the accuracy and reliability of the test results.

[0005] This utility model provides a moisture-proof device for slices used in pressure filtration differential testing, comprising:

[0006] The material storage chamber has an air inlet at its lower end, an exhaust pipe at its upper end, and a discharge seat at its lower end. The material storage chamber is connected to the discharge seat via a flange.

[0007] Preferably, the air inlet is filled with nitrogen gas and is connected to a nitrogen gas supply source through a pipeline.

[0008] Preferably, the upper end of the storage cavity is provided with a slicing inlet, and a spiral sealing cap is threadedly installed on the upper end of the slicing inlet. A sealing gasket is placed inside the spiral sealing cap, and the spiral sealing cap is threadedly connected to the slicing inlet.

[0009] Preferably, the inner wall of the storage cavity is provided with a protective layer, and the protective layer is installed in close contact with the storage cavity.

[0010] Preferably, filters are provided inside the air inlet and exhaust pipe at the locations communicating with the storage chamber.

[0011] Preferably, the air inlet is provided with an air distribution pipe inside, and the exhaust port with the filter screen is evenly arranged at the upper end of the air distribution pipe.

[0012] Preferably, the upper end of the filter screen is provided with a fixing cap, which is arranged in a dome shape.

[0013] This utility model provides a moisture-proof device for slices used in differential pressure filtration testing. The lower part of the storage chamber has an air inlet connected to an external nitrogen source. During sample injection, the slice is placed in the storage chamber, and a nitrogen nozzle sprays dry nitrogen to create a protective atmosphere, enveloping the slice and preventing contact with moisture in the air. The discharge seat of the storage chamber is equipped with a sealing valve. During sample injection, the sealing valve is opened, and the slice enters the testing instrument's pipeline under the protection of the nitrogen layer. The storage chamber also has an exhaust pipe to expel air from the chamber, maintaining a nitrogen environment within it. By using nitrogen to protect the slice, the device effectively prevents moisture absorption at the injection port, ensuring the accuracy of the test results. Furthermore, the device is simple in structure, easy to operate, and improves the efficiency of filtration performance testing. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the storage cavity in an embodiment of the present invention;

[0017] Figure 3 This is an embodiment of the present utility model. Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This is an embodiment of the present utility model. Figure 2 Enlarged structural diagram at point B;

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the barrier part in an embodiment of the present invention.

[0020] Figure descriptions: 100, material storage chamber; 110, discharge seat; 120, slicing inlet; 130, spiral sealing cap; 140, protective layer; 200, air inlet; 300, exhaust pipe; 400, air distribution pipe; 410, fixing cap; 420, filter screen; 500, barrier part; 510, seat body; 520, rotating baffle; 530, rotating shaft; 540, limiting component. Detailed Implementation

[0021] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0022] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0025] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0026] To better understand the purpose, structure, and function of this utility model, the following detailed description, in conjunction with the accompanying drawings, provides an overview of a moisture-proof device for slices used in pressure filtration differential testing.

[0027] like Figures 1-5As shown, this utility model embodiment provides a moisture-proof device for slices used in pressure filtration difference testing, including a storage chamber 100 for storing samples to be tested. The lower end of the storage chamber 100 is provided with an air inlet 200 for filling the storage chamber 100 with protective gas, the upper end of the storage chamber 100 is provided with an exhaust pipe 300 for discharging the internal gas, and the lower end of the storage chamber 100 is provided with a discharge seat 110 for discharging slices for testing. The storage chamber 100 is connected to the discharge seat 110 through a flange.

[0028] The air inlet 200 is preferably filled with nitrogen, and is connected to a nitrogen supply source through a pipe.

[0029] The lower part of the storage chamber 100 is equipped with an air inlet 200, which is connected to an external nitrogen source. During sample injection, the slide is placed in the storage chamber 100, and the nitrogen nozzle sprays dry nitrogen to form a protective atmosphere, enveloping the slide and preventing it from contacting moisture in the air. The discharge seat 110 of the storage chamber 100 is equipped with a sealing valve. When the sample is injected, the sealing valve is opened, and the slide enters the pipeline of the testing instrument under the protection of the nitrogen layer. The storage chamber 100 is also equipped with an exhaust pipe 300 to expel the air in the storage chamber 100, maintaining the nitrogen environment inside the storage chamber 100. By using nitrogen to protect the slide, the problem of the slide getting damp at the injection port is effectively avoided, ensuring the accuracy of the test results. Moreover, the structure is simple and easy to operate, which can improve the efficiency of filtration performance testing.

[0030] Example

[0031] Simultaneously, two bags of slices were taken, one bag was placed in the designed device for storage, and the other bag was placed in the unmodified device. The moisture content was tested every two hours, for a total of 8 hours. The test results are shown in the table below:

[0032] Table 1. Moisture data of samples under different storage conditions

[0033] sample Improved device Previous device 2-hour moisture content (ppm) 10.7 40.2 4-hour moisture content (ppm) 11.2 68.5 6h moisture (ppm) 10.5 101.4 8-hour moisture content (ppm) 10.3 129.8

[0034] The upper end of the storage chamber 100 is provided with a slicing inlet 120 for feeding the slicing raw material into the storage chamber 100. The upper end of the slicing inlet 120 is threaded with a spiral sealing cap 130 for sealing and protecting the inside of the storage chamber 100. A sealing gasket is placed inside the spiral sealing cap 130. The spiral sealing cap 130 is threadedly connected to the slicing inlet 120. The slicing inlet 120 facilitates feeding, and the spiral sealing cap 130 rotates to seal and prevent moisture from entering.

[0035] The inner wall of the storage cavity 100 is provided with a protective layer 140 for moisture protection. The protective layer 140 is installed in close contact with the storage cavity 100. Preferably, the protective layer 140 can be made of polytetrafluoroethylene material. The arrangement of moisture-proof material further prevents the slices from getting damp.

[0036] Both the air inlet 200 and the exhaust pipe 300 are equipped with filters 420 at the locations where they connect with the storage chamber 100. These filters are used to block the internal slices and prevent them from entering the air inlet 200 and the exhaust pipe 300.

[0037] The air inlet 200 is equipped with a gas distribution pipe 400 for dispersing the gas to be filled in. The exhaust port with filter screen 420 is evenly arranged at the upper end of the gas distribution pipe 400, so that the protective gas filled in through the air inlet 200 is evenly dispersed inside the storage chamber 100, further protecting the internal slices and avoiding uneven distribution of nitrogen.

[0038] The upper end of the filter screen 420 is provided with a fixing cap 410 for protecting the lower end. The fixing cap 410 is arranged in a dome shape to prevent the accumulation of slices at the upper end and to protect the filter screen 420 at the lower end.

[0039] Both the upper ends of the air inlet 200 and the exhaust pipe 300 are provided with a barrier part 500 for blocking and protecting the air inlet 200 and the exhaust pipe 300. The two sets of barrier parts 500 are in opposite directions. The barrier part 500 includes a seat 510 for installation in the middle of the two sets of pipes and a rotating baffle 520 for blocking the internal air by being rotatably installed inside the seat 510. The rotating baffle 520 is installed by a rotating shaft 530 rotatably installed at the upper end and connected by a torsion spring. The lower end of the seat 510 is provided with a limiting member 540 for blocking and positioning the rotating baffle 520. During the air intake and exhaust process, the rotating baffle 520 rotatably installed inside the seat 510 opens to allow air to enter or exit. When not in use, the rotating baffle 520 closes to prevent external air from entering and further protect the internal material.

[0040] The working principle of a moisture-proof device for filtration differential pressure testing is as follows: A storage chamber 100 has an air inlet 200 at its lower part, which is connected to an external nitrogen source. During sample injection, the slices are placed in the storage chamber 100, and a nitrogen nozzle sprays dry nitrogen to form a protective atmosphere, enveloping the slices and preventing them from contacting moisture in the air. The discharge seat 110 of the storage chamber 100 is equipped with a sealing valve. During sample injection, the sealing valve is opened, and the slices enter the testing instrument's pipeline under the protection of the nitrogen layer. The storage chamber 100 is also equipped with an exhaust pipe 300 to expel air from the storage chamber 100, maintaining a nitrogen environment within the chamber. By using nitrogen to protect the slices, the problem of moisture absorption at the injection port is effectively avoided, ensuring the accuracy of the test results. Furthermore, the device has a simple structure, is easy to operate, and can improve the efficiency of filtration performance testing.

[0041] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A moisture-proof device for slices used in pressure filtration differential testing, characterized in that, include: The storage chamber (100) has an air inlet (200) at its lower end and an exhaust pipe (300) at its upper end. The storage chamber (100) also has a discharge seat (110) at its lower end. The storage chamber (100) is connected to the discharge seat (110) via a flange.

2. The moisture-proof device for slices used in pressure filtration differential testing according to claim 1, characterized in that, The air inlet (200) is filled with nitrogen gas and is connected to a nitrogen gas supply source through a pipe.

3. A moisture-proof device for slices used in pressure filtration differential testing according to claim 2, characterized in that, The upper end of the storage chamber (100) is provided with a slicing inlet (120), and a spiral sealing cap (130) is threadedly installed on the upper end of the slicing inlet (120). A sealing gasket is placed inside the spiral sealing cap (130), and the spiral sealing cap (130) is threadedly connected to the slicing inlet (120).

4. A moisture-proof device for slices used in pressure filtration differential testing according to claim 3, characterized in that, The inner wall of the storage cavity (100) is provided with a protective layer (140), which is installed in close contact with the storage cavity (100).

5. A moisture-proof device for slices used in pressure filtration differential testing according to claim 4, characterized in that, The air inlet (200) and the exhaust pipe (300) are both equipped with filters (420) at the positions where they communicate with the storage chamber (100).

6. A moisture-proof device for slices used in pressure filtration differential testing according to claim 5, characterized in that, The air inlet (200) is provided with an air distribution pipe (400) inside, and the exhaust port with the filter (420) is evenly arranged at the upper end of the air distribution pipe (400).

7. A moisture-proof device for slices used in pressure filtration differential testing according to claim 6, characterized in that, The filter screen (420) is provided with a fixing cap (410) at its upper end, and the fixing cap (410) is arranged in a dome shape.

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