Polyvinyl chloride dehydrating and filtering device

Abstract

The utility model discloses a polyvinyl chloride dehydrating and filtering device which comprises a box body, the section of the inner wall of the box body is square, an upper end cover is detachably arranged on the upper portion of the box body, and the polyvinyl chloride dehydrating and filtering device further comprises a dehydrating and filtering unit arranged in the box body. The dewatering filter unit comprises a first filter screen, a filter screen supporting plate, a water-repellent filter layer, a second filter screen, a telescopic assembly and a push plate, the filter screen supporting plate is obliquely arranged along the inner wall of the box body, the first filter screen is arranged on the filter screen supporting plate, the second filter screen is arranged in the box body and located below the push plate, the water-repellent filter layer is arranged below the second filter screen, and the water-repellent filter layer is made of superfine fibers; the fixed end of the telescopic assembly is arranged on the outer side of the box body, the telescopic end of the telescopic assembly is arranged on the inner side of the box body, and the push plate is arranged in the box body and connected with the telescopic end of the telescopic assembly. The dewatering and filtering device is simple in structure, high in applicability, high in dewatering and filtering efficiency and convenient to clean due to the arrangement of the upper end cover and the electric push rod.

Description

Technical Field

[0001] The utility model relates to a dehydration and filtering device, in particular to a polyvinyl chloride dehydration and filtering device. Background Art

[0002] In the prior art, solid alkali is often used to separate polyvinyl chloride. A small amount of water is dispersed in the vinyl chloride monomer in the form of droplets of varying sizes. The water separator can only discharge water droplets ≥ 2 microns after standing, settling, and stratification. However, micro-water droplets ≤ 2 microns form a stable oil-in-water emulsion in the vinyl chloride monomer and will not settle no matter how long they are left standing. Therefore, they cannot be separated from the water separator. The vinyl chloride monomer containing emulsion micro-water droplets coming out of the water separator enters the solid alkali dryer, where these micro-water droplets are removed by using the strong water absorption of the solid alkali.

[0003] The above process is uneven in the solid alkali bed. Due to the poor bulk density and adhesion effect of the solid alkali bed, the bed resistance is uneven. As a result, a large amount of liquid quickly penetrates the bed, forming a channel flow that causes the aqueous vinyl chloride to short-circuit, significantly reducing the water removal efficiency. When large particles of solid alkali are loaded, although the above phenomenon is reduced, the large bulk pores prevent the aqueous vinyl chloride from fully contacting the solid alkali surface, resulting in low water removal efficiency. The utility model greatly compensates for the low separation efficiency of traditional separators widely used in polyvinyl chloride production. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the utility model provides a polyvinyl chloride dehydration and filtering device.

[0006] (2) Technical solution

[0007] In order to solve the above problems, the present invention provides the following technical solutions: a polyvinyl chloride dehydration and filtration device, comprising a box body, the cross section of the inner wall of the box body is square, a detachable upper end cover is provided on the upper part of the box body, and further comprising a dehydration and filtration unit provided in the box body;

[0008] The dehydration filter unit includes a first filter screen, a filter screen support plate, a water-repellent filter layer, a second filter screen, a telescopic assembly, and a push plate. The filter screen support plate is arranged obliquely along the inner wall of the box. The first filter screen is arranged on the filter screen support plate. The second filter screen is arranged in the box and is located below the push plate. The water-repellent filter layer is arranged below the second filter screen and is made of ultrafine fiber.

[0009] The telescopic component is provided with a fixed end and a telescopic end. The fixed end of the telescopic component is provided on the outside of the box body, and the telescopic end of the telescopic component is provided on the inside of the box body. The push plate is provided in the box body, and the push plate is connected to the telescopic end of the telescopic component. The telescopic component is used to control the push plate to perform linear motion in the box body.

[0010] Preferably, the polyvinyl chloride dehydration and filtration device also includes a feed port, a drain valve, and a discharge valve. The feed port is arranged on the side of the box body, and the feed port is located between the upper end cover and the first filter screen. The drain valve is arranged on the side of the box body, relative to the position of the telescopic component, the drain valve is consistent in height with the second filter screen, and the discharge valve is arranged at the bottom of the box body.

[0011] Preferably, the telescopic assembly adopts a hydraulic push rod, the extension and retraction of the push rod is controlled by a hydraulic cylinder, and the fixed end of the telescopic assembly is fixed to the box body by a bolt.

[0012] Preferably, the box body is provided with four box body support columns.

[0013] Preferably, the push plate is an arc-shaped push plate, provided with a connecting surface and a pushing surface, the connecting surface of the push plate is a plane, the connecting surface of the push plate is connected to the telescopic end of the telescopic assembly, and the pushing surface of the push plate is arc-shaped.

[0014] Preferably, there is a certain gap between the two side surfaces between the connecting surface of the push plate and the push surface and the inner wall of the box.

[0015] Preferably, the first filter is arranged obliquely in the box, and a handle is provided at the first filter.

[0016] Preferably, the upper end cover is fixed to the box body by bolts.

[0017] Preferably, the ultrafine fiber material of the water-repellent filter layer is micron-grade ultrafine fiber.

[0018] Preferably, the inner bottom of the box is configured as a trapezoidal slope.

[0019] (3) Beneficial effects

[0020] Compared with the prior art, the present invention provides a polyvinyl chloride dehydration and filtration device, which has the following beneficial effects:

[0021] 1. The utility model is composed of an upper end cover, a box body, an electric push rod, a push plate, a filter handle, a filter, a water-repellent filter layer, a second filter, etc. It has a simple structure, strong applicability and high efficiency.

[0022] 2. The utility model is provided with a filter handle, and the first filter is tiltedly arranged in the box body, which not only increases the fluidity of the material, but also increases the filtering efficiency and is convenient to take out.

[0023] 3. The two side surfaces of the push plate of the utility model are set to be arc-shaped, so that the push plate fits the internal curvature of the box.

[0024] 4. The upper cover can be opened to clean the inside of the box, and the electric push rod can push the retained water and debris filtered out of the water-repellent filter layer to the drain outlet for discharge, which can prevent blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the utility model;

[0026] Figure 2 This is the main view of the utility model;

[0027] Figure 3 It is a left view of the utility model;

[0028] Figure 4 It is a right side view of the utility model;

[0029] Figure 5 It is a top view of the utility model;

[0030] Figure 6 This is a structural diagram of the push plate of the utility model;

[0031] Figure 7 It is a schematic diagram of the inner wall cross section of the box body of the present invention.

[0032] In the figure: 1 upper end cover, 2 shell, 3 feed port, 4 electric push rod, 5 push plate, 6 bolt, 7 first filter screen, 8 filter screen support plate, 9 sewage valve, 10 filter layer, 11 second filter screen, 12 discharge valve, 13 support column. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] The utility model provides a new technical solution:

[0035] A polyvinyl chloride dehydration and filtration device, comprising a box body 2, the inner wall of which has a square cross-section, a detachable upper end cover 1 disposed above the box body 2, and a dehydration and filtration unit disposed within the box body 2;

[0036] The dehydration filter unit includes a first filter screen 7, a filter screen support plate 8, a water-repellent filter layer 10, a second filter screen 11, a telescopic component 4, and a push plate 5. The filter screen support plate 8 is arranged obliquely along the inner wall 2 of the box body (2). The first filter screen 7 is arranged on the filter screen support plate 8. The second filter screen 11 is arranged in the box body 2 and is located below the push plate 5. The water-repellent filter layer 10 is arranged below the second filter screen 11. The water-repellent filter layer 10 is made of ultrafine fiber.

[0037] The telescopic component 4 is provided with a fixed end and a telescopic end. The fixed end of the telescopic component 4 is provided on the outside of the box body 2, and the telescopic end of the telescopic component 4 is provided on the inside of the box body 2. The push plate 5 is provided in the box body 2, and the push plate 5 is connected to the telescopic end of the telescopic component 4. The telescopic component 4 is used to control the push plate 5 to perform linear motion in the box body 2.

[0038] In this embodiment, the polyvinyl chloride dehydration and filtration device also includes a feed port 3, a drain valve 9, and a discharge valve 12. The feed port 3 is arranged on the side of the box body 2, and the feed port 3 is located between the upper end cover 1 and the first filter screen 7. The drain valve 9 is arranged on the side of the box body 2, relative to the position of the telescopic component 4. The drain valve 9 is consistent in height with the second filter screen 11, and the discharge valve 12 is arranged at the bottom of the box body 2.

[0039] In this embodiment, the telescopic assembly 4 adopts a hydraulic push rod, and the extension and retraction of the push rod is controlled by a hydraulic cylinder. The fixed end of the telescopic assembly 4 is fixed to the box body 2 by a bolt 6.

[0040] In this embodiment, the box body 2 is provided with four box body support columns 13 .

[0041] In this embodiment, the push plate 5 is an arc-shaped push plate, which is provided with a connecting surface and a pushing surface. The connecting surface of the push plate 5 is a plane, and the connecting surface of the push plate 5 is connected to the telescopic end of the telescopic component 4. The pushing surface of the push plate 5 is arc-shaped.

[0042] In this embodiment, there is a certain gap between the two side surfaces between the connecting surface and the pushing surface of the push plate 5 and the inner wall of the box body 2.

[0043] In this embodiment, the first filter screen 7 is obliquely disposed in the box body 2 , and a handle is provided at the first filter screen 7 .

[0044] In this embodiment, the upper end cover 1 is fixed to the box body 2 by bolts 6 .

[0045] In this embodiment, the ultrafine fiber material of the water-repellent filter layer 10 is micron-grade ultrafine fiber.

[0046] In this embodiment, the inner bottom of the box body 2 is configured as a trapezoidal slope.

[0047] Working principle: The material enters the box from the feed port, first the material enters the interior of the box 4 from the feed port 18, and is filtered for the first time through the first filter screen 7 supported by the filter support plate 8. The filtered material enters the second filter screen 14 and the water-repellent filter layer 13 for secondary filtration. When the polyvinyl chloride liquid passes through the water-repellent filter layer 13, the entrained emulsified water droplets are first captured by the comprehensive effects of collision, interception, thermal motion, etc. of the ultra-fine fiber layer due to the difference in fluid properties. Then, with the help of the polyvinyl chloride material, they gradually aggregate and grow in the layer-by-layer flow, and finally separate from the medium body due to gravity on the outer surface of the filter element. The electric push rod 4 pushes the push plate 5 to push the water and debris remaining on the second filter screen 11 to the drain valve 9 for discharge. Finally, the material enters the bottom of the box and flows out from the discharge valve 12, which greatly makes up for the low separation efficiency of traditional separators widely used in polyvinyl chloride production.

[0048] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyvinyl chloride dehydration and filtration device, characterized in that: The polyvinyl chloride dehydration and filtration device comprises a box body (2), the inner wall of the box body (2) has a square cross-section, an upper end cover (1) is detachably provided above the box body (2), and further comprises a dehydration and filtration unit provided in the box body (2); The dehydration filter unit comprises a first filter screen (7), a filter screen support plate (8), a water-repellent filter layer (10), a second filter screen (11), a telescopic assembly (4), and a push plate (5); the filter screen support plate (8) is arranged obliquely along the inner wall of the box body (2); the first filter screen (7) is arranged on the filter screen support plate (8); the second filter screen (11) is arranged in the box body (2) and is located below the push plate (5); the water-repellent filter layer (10) is arranged below the second filter screen (11); and the water-repellent filter layer (10) is made of ultrafine fibers; The telescopic component (4) is provided with a fixed end and a telescopic end, the fixed end of the telescopic component (4) is provided on the outside of the box (2), the telescopic end of the telescopic component (4) is provided on the inside of the box (2), the push plate (5) is provided in the box (2), the push plate (5) is connected to the telescopic end of the telescopic component (4), and the telescopic component (4) is used to control the push plate (5) to perform linear motion in the box (2).

2. A polyvinyl chloride dehydration and filtration device according to claim 1, characterized in that: The polyvinyl chloride dehydration and filtration device further comprises a feed port (3), a sewage valve (9), and a discharge valve (12); the feed port (3) is arranged on the side of the box body (2); the feed port (3) is located between the upper end cover (1) and the first filter screen (7); the sewage valve (9) is arranged on the side of the box body (2) and is arranged relative to the position of the telescopic component (4); the sewage valve (9) is at the same height as the second filter screen (11); and the discharge valve (12) is arranged at the bottom of the box body (2).

3. The polyvinyl chloride dehydration and filtration device according to claim 1, characterized in that: The telescopic assembly (4) adopts a hydraulic push rod, and the extension and retraction of the push rod is controlled by a hydraulic cylinder. The fixed end of the telescopic assembly (4) is fixed to the box body (2) via a bolt (6).

4. The polyvinyl chloride dehydration and filtration device according to claim 1, characterized in that: The box body (2) is provided with four box body support columns (13).

5. The polyvinyl chloride dehydration and filtration device according to claim 1, characterized in that: The push plate (5) is an arc-shaped push plate, provided with a connecting surface and a pushing surface, the connecting surface of the push plate (5) is a plane, the connecting surface of the push plate (5) is connected to the telescopic end of the telescopic component (4), and the pushing surface of the push plate (5) is arc-shaped.

6. A polyvinyl chloride dehydration and filtration device according to claim 5, characterized in that: There is a certain gap between the two side surfaces between the connecting surface and the pushing surface of the push plate (5) and the inner wall of the box body (2).

7. The polyvinyl chloride dehydration and filtration device according to claim 1, characterized in that: The first filter screen (7) is arranged obliquely in the box body (2), and a handle is provided at the first filter screen (7).

8. The polyvinyl chloride dehydration and filtration device according to claim 1, characterized in that: The upper end cover (1) is fixed to the box body (2) via bolts (6).

9. The polyvinyl chloride dehydration and filtration device according to claim 1, characterized in that: The ultrafine fiber material of the water-repellent filter layer (10) is micron-grade ultrafine fiber.

10. The polyvinyl chloride dehydration and filtration device according to claim 1, characterized in that: The inner bottom of the box body (2) is configured as a trapezoidal inclined surface.

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