Double-layer screen supporting frame convenient to install

Abstract

The utility model discloses a double-layer screen supporting frame convenient to install, and relates to the field of petrochemical reactors, the double-layer screen supporting frame comprises a first screen and a second screen, upper sealing rings are placed at the tops of the outer walls of the first screen and the second screen, and lower sealing rings are placed at the bottoms of the outer walls of the first screen and the second screen; the top of the upper sealing ring is movably sleeved with a bolt in a penetrating mode. The horizontal height of a movable ring is changed by rotating a threaded sleeve on a first threaded rod, when the threaded sleeve moves upwards, the top end of a first connecting rod gets close to the middle, when the threaded rod moves downwards, the top end of the first connecting rod expands outwards firstly, the threaded sleeve is rotated to move downwards, and therefore the first connecting rod drives an extrusion block to make contact with the inner wall of the outer shell; the arc-shaped extrusion blocks can be better attached to the inner wall of the outer shell, the friction force between the extrusion blocks and the outer shell is increased through the arranged rubber pads, the first screen and the second screen are better supported, and therefore the effect of rapidly detaching the double-layer screen is achieved.

Description

Technical Field

[0001] The present application relates to the field of petrochemical reactors, and in particular to a double-layer screen support frame that is easy to install. Background Art

[0002] At present, screens are widely used in adsorption towers, desorption towers, desorption reactors and other absorption equipment. Continuous reactors are reactors where the reaction continues without interruption (except for failures). They are often equipped with stirring (mechanical stirring, air flow stirring, etc.) devices, feeding devices, temperature and pressure regulation and monitoring equipment, etc. A double-layer screen is set below the feeding position at the top of the reactor to perform double-layer screening of the material.

[0003] However, the existing screens are difficult to install and fix, and welding is usually used, which makes it inconvenient to clean, maintain and replace the screens. In addition, the spacing between the multiple layers of screens on the top of the equipment is fixed. When facing different objects that need to be screened, screens with different spacings are required for screening. As a result, when screening different objects, subsequent work can only be carried out by replacing the screens. Utility Model Content

[0004] In order to solve the problem that the existing screen is difficult to install and fix, welding is usually used, which makes the cleaning, maintenance and replacement of the screen inconvenient, the present application provides a double-layer screen support frame that is easy to install.

[0005] The present application provides a double-layer screen support frame that is easy to install and adopts the following technical solution: it includes a first screen and a second screen, upper sealing rings are placed on the top of the outer walls of the first screen and the second screen, lower sealing rings are placed on the bottom of the outer walls of the first screen and the second screen, the top of the upper sealing ring is penetrated by a bolt with a movable sleeve, the bottom of the lower sealing ring is fixed with a nut, the middle part of the top of the first screen is fixed with a first threaded rod, the middle part of the first threaded rod is threadedly connected to a threaded sleeve, the bottom of the threaded sleeve is rotatably connected to a movable ring, the outer wall of the movable ring is hinged with a second connecting rod, the bottom of the outer wall of the first threaded rod is fixed with a fixing ring, the outer wall of the fixing ring is hinged with a first connecting rod, the top of the first connecting rod is hinged with an extrusion block, the bottom of the lower sealing ring at the bottom of the first screen is fixed with a second threaded rod, and the upper sealing ring at the top of the second screen is rotatably connected with a sleeve rod.

[0006] By adopting the above technical solution, the horizontal height of the movable ring is changed by rotating the threaded sleeve on the first threaded rod.

[0007] Preferably, there are multiple second connecting rods and multiple first connecting rods, the multiple first connecting rods and the multiple second connecting rods are arranged in a one-to-one correspondence, and the bottom ends of the multiple second connecting rods are respectively hinged to the outer walls of the multiple first connecting rods.

[0008] By adopting the above technical solution, the second connecting rod supports the first connecting rod, and when the angle between the second connecting rod and the movable ring changes, the angle between the first connecting rod and the first screen changes together.

[0009] Preferably, the extrusion block is arranged in an arc shape on a side away from the first connecting rod, and a rubber pad is fixed to the outer wall of the arc-shaped side.

[0010] By adopting the above technical solution, the provided rubber pad increases the friction between the extrusion block and the outer shell, thereby better supporting the first screen and the second screen.

[0011] Preferably, a plurality of the sleeve rods are provided, the number of the second threaded rods is equal to the number of the sleeve rods, the plurality of the sleeve rods and the plurality of the second threaded rods are equidistantly arranged around the circumference, and the sleeve rods and the second threaded rods are threadedly connected.

[0012] By adopting the above technical solution, the sleeve rod and the second threaded rod connect the first screen and the second screen, and the spacing between the two ends of the sleeve rod and the second threaded rod is changed by rotating the sleeve rod on the outer wall of the second threaded rod, thereby adjusting the spacing between the first screen and the second screen.

[0013] Preferably, a guide ring is placed above the upper sealing ring on the top of the first screen, and the thickness of the outer wall of the guide ring is greater than the thickness of one side of the inner wall of the guide ring.

[0014] By adopting the above technical solution, the guide ring fills the gap between the first screen and the inner part of the outer shell, and at the same time, the material falling on the guide ring can still fall on the first screen for screening.

[0015] Preferably, the vertical cross-sections of the lower sealing ring and the upper sealing ring are both L-shaped, and the first screen is located in the grooves opposite to each other in the lower sealing ring and the upper sealing ring.

[0016] By adopting the above technical solution, the first screen or the second screen is placed in the grooves opposite to the lower sealing ring and the upper sealing ring, and the first screen and the second screen are fixed by the lower sealing ring and the upper sealing ring.

[0017] Preferably, the bolt and nut are used in combination, and the bolt passes through the mesh of the first screen and is threadedly connected to the nut.

[0018] By adopting the above technical solution, after the lower sealing ring and the upper sealing ring clamp the first screen or the second screen, the lower sealing ring and the upper sealing ring are tightened and connected using bolts and nuts.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. The present application changes the horizontal height of the movable ring by rotating the threaded sleeve on the first threaded rod. When the threaded sleeve moves upward, the top end of the first connecting rod moves closer to the middle. When the threaded rod moves downward, the top end of the first connecting rod expands outward first, and the threaded sleeve is rotated to move downward, so that the first connecting rod drives the extrusion block to touch the inner wall of the outer shell. The arc-shaped extrusion block can better fit the inner wall of the outer shell. The friction between the extrusion block and the outer shell is increased by the provision of a rubber pad, which better supports the first screen and the second screen, thereby achieving the effect of quickly disassembling the double-layer screen.

[0021] 2. The present application connects the first screen and the second screen through a sleeve rod and a second threaded rod, and changes the spacing between the two ends of the sleeve rod and the second threaded rod by rotating the sleeve rod on the outer wall of the second threaded rod, thereby adjusting the spacing between the first screen and the second screen, thereby achieving the effect of quickly adjusting the spacing between the double-layer screens. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a double-layer screen support frame that is easy to install according to an embodiment of the present application;

[0023] Figure 2 This is a schematic diagram showing the structure of the first and second internal screens in an embodiment of the present application;

[0024] Figure 3 This is a schematic diagram mainly showing the top structure of the first screen in the embodiment of the present application;

[0025] Figure 4 This is a schematic diagram mainly showing the cross-sectional structure of the first screen in the embodiment of the present application;

[0026] Figure numerals: 1, outer shell; 2, first screen; 3, guide ring; 4, second screen; 5, upper sealing ring; 6, lower sealing ring; 7, bolt; 71, nut; 8, first threaded rod; 9, fixing ring; 10, first connecting rod; 11, extrusion block; 111, rubber pad; 12, movable ring; 13, second connecting rod; 14, threaded sleeve; 15, sleeve rod; 16, second threaded rod. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-Figure 4 This application is described in further detail.

[0028] The embodiment of the present application discloses a double-layer screen support frame that is easy to install, including a first screen 2 and a second screen 4. An upper sealing ring 5 is placed on the top of the outer wall of the first screen 2 and the second screen 4, and a lower sealing ring 6 is placed on the bottom of the outer wall of the first screen 2 and the second screen 4. The first screen 2 and the second screen 4 can be fixed by the lower sealing ring 6 and the upper sealing ring 5. A bolt 7 is inserted through the top of the upper sealing ring 5 and a nut 71 is fixed to the bottom of the lower sealing ring 6. After the lower sealing ring 6 and the upper sealing ring 5 clamp the first screen 2 or the second screen 4, the bolt 7 is connected with the nut 71, and the middle part of the top of the first screen 2 is fixed. There is a first threaded rod 8, a threaded sleeve 14 is threadedly connected to the middle part of the first threaded rod 8, a movable ring 12 is rotatably connected to the bottom of the threaded sleeve 14, a second connecting rod 13 is hinged on the outer wall of the movable ring 12, a fixed ring 9 is fixed to the bottom of the outer wall of the first threaded rod 8, a first connecting rod 10 is hinged on the outer wall of the fixed ring 9, an extrusion block 11 is hinged on the top of the first connecting rod 10, a second threaded rod 16 is fixed to the bottom of the lower sealing ring 6 at the bottom of the first screen 2, and a sleeve rod 15 is rotatably connected above the upper sealing ring 5 at the top of the second screen 4. The horizontal height of the movable ring 12 is changed by rotating the threaded sleeve 14 on the first threaded rod 8.

[0029] Among them, there are multiple second connecting rods 13 and multiple first connecting rods 10, and the multiple first connecting rods 10 and the multiple second connecting rods 13 are arranged in a one-to-one correspondence, and the bottom ends of the multiple second connecting rods 13 are respectively hinged to the outer walls of the multiple first connecting rods 10, and the first connecting rods 10 are supported by the second connecting rods 13. When the angle between the second connecting rod 13 and the movable ring 12 changes, the angle between the first connecting rod 10 and the first screen 2 changes together.

[0030] Among them, the extrusion block 11 is arranged in an arc shape on the side away from the first connecting rod 10, and a rubber pad 111 is fixed to the outer wall of the arc side. The arc-shaped extrusion block 11 can better fit with the inner wall of the outer shell 1. The friction between the extrusion block 11 and the outer shell 1 is increased by the set rubber pad 111, so as to better support the first screen 2 and the second screen 4.

[0031] Among them, there are multiple sleeve rods 15, the number of second threaded rods 16 is equal to the number of sleeve rods 15, the multiple sleeve rods 15 and the multiple second threaded rods 16 are arranged equidistantly around the circumference, and the sleeve rod 15 and the second threaded rod 16 are threadedly connected, and the first screen 2 and the second screen 4 are connected by the sleeve rod 15 and the second threaded rod 16. By rotating the sleeve rod 15 on the outer wall of the second threaded rod 16, the spacing value at both ends of the sleeve rod 15 and the second threaded rod 16 can be changed, thereby adjusting the spacing between the first screen 2 and the second screen 4.

[0032] Among them, a guide ring 3 is placed above the upper sealing ring 5 on the top of the first screen 2. The thickness of the outer wall of the guide ring 3 is greater than the thickness of the inner wall of the guide ring 3. The guide ring 3 fills the gap between the first screen 2 and the inner part of the outer shell 1. At the same time, the material falling on the guide ring 3 can still fall on the first screen 2 for screening.

[0033] Among them, the vertical cross-sections of the lower sealing ring 6 and the upper sealing ring 5 are both L-shaped, and the first screen 2 is located in the groove opposite to the lower sealing ring 6 and the upper sealing ring 5. By placing the first screen 2 or the second screen 4 in the groove opposite to the lower sealing ring 6 and the upper sealing ring 5, the first screen 2 and the second screen 4 are fixed by the lower sealing ring 6 and the upper sealing ring 5.

[0034] Among them, the bolt 7 and the nut 71 are used in combination. The bolt 7 passes through the mesh of the first screen 2 and is threadedly connected with the nut 71. After the lower sealing ring 6 and the upper sealing ring 5 clamp the first screen 2 or the second screen 4, the bolt 7 is connected with the nut 71 to tighten the lower sealing ring 6 and the upper sealing ring 5.

[0035] After the first screen mesh 2 and the second screen mesh 4 are clamped together, the lower sealing ring 6 and the upper sealing ring 5 are tightened to connect. Then, the first screen mesh 2 and the second screen mesh 4 are placed in the outer shell 1, and the guide ring 3 matching the internal size of the outer shell 1 is placed above the first screen mesh 2. The guide ring 3 fills the gap between the first screen mesh 2 and the inner part of the outer shell 1. At the same time, the material falling on the guide ring 3 can still fall on the first screen mesh 2 for screening. Finally, the threaded sleeve 14 is rotated on the first threaded rod 8 to change the horizontal height of the movable ring 12. When the angle between the second connecting rod 13 and the movable ring 12 changes, the second screen mesh 2 and the second screen mesh 4 are fixed together. The angle between a connecting rod 10 and the first screen 2 changes together. When the threaded sleeve 14 moves up, the top of the first connecting rod 10 moves closer to the middle. When the threaded rod 14 moves down, the top of the first connecting rod 10 expands outward first, and the threaded sleeve 14 is rotated to move downward, so that the first connecting rod 10 drives the extrusion block 11 to touch the inner wall of the outer shell 1. The arc-shaped extrusion block 11 can better fit the inner wall of the outer shell 1. The friction between the extrusion block 11 and the outer shell 1 is increased by the provided rubber pad 111, so as to better support the first screen 2 and the second screen 4. When it is necessary to adjust the spacing between the first screen 2 and the second screen 4, the first screen 2 and the second screen 4 are connected by the sleeve rod 15 and the second threaded rod 16. By rotating the sleeve rod 15 on the outer wall of the second threaded rod 16, the spacing value at both ends of the sleeve rod 15 and the second threaded rod 16 can be changed, thereby adjusting the spacing between the first screen 2 and the second screen 4.

[0036] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A double-layer screen support frame that is easy to install, comprising a first screen (2) and a second screen (4), characterized in that: An upper sealing ring (5) is placed on the top of the outer wall of each of the first screen (2) and the second screen (4), and a lower sealing ring (6) is placed on the bottom of the outer wall of each of the first screen (2) and the second screen (4). A bolt (7) is inserted through the top of the upper sealing ring (5) and is movably sleeved. A nut (71) is fixed to the bottom of the lower sealing ring (6). A first threaded rod (8) is fixed to the middle of the top of the first screen (2). A threaded sleeve (14) is threadedly connected to the middle of the first threaded rod (8). The bottom of the threaded sleeve (14) is rotated. A movable ring (12) is connected, and a second connecting rod (13) is hinged on the outer wall of the movable ring (12); a fixed ring (9) is fixed to the bottom of the outer wall of the first threaded rod (8); a first connecting rod (10) is hinged on the outer wall of the fixed ring (9); an extrusion block (11) is hinged on the top of the first connecting rod (10); a second threaded rod (16) is fixed to the bottom of the lower sealing ring (6) at the bottom of the first screen (2); and a sleeve rod (15) is rotatably connected above the upper sealing ring (5) at the top of the second screen (4).

2. The double-layer screen support frame that is easy to install according to claim 1, characterized in that: There are multiple second connecting rods (13), and there are multiple first connecting rods (10). The multiple first connecting rods (10) and the multiple second connecting rods (13) are arranged in a one-to-one correspondence, and the bottom ends of the multiple second connecting rods (13) are respectively hinged to the outer walls of the multiple first connecting rods (10).

3. The double-layer screen support frame that is easy to install according to claim 2, characterized in that: The extrusion block (11) is arranged in an arc shape on a side away from the first connecting rod (10), and a rubber pad (111) is fixed to the outer wall of the arc-shaped side.

4. The double-layer screen support frame that is easy to install according to claim 3, characterized in that: The sleeve rods (15) are provided in plurality, the number of the second threaded rods (16) is equal to the number of the sleeve rods (15), the plurality of sleeve rods (15) and the plurality of the second threaded rods (16) are arranged equidistantly around the circumference, and the sleeve rods (15) and the second threaded rods (16) are threadedly connected.

5. The double-layer screen support frame that is easy to install according to claim 4, characterized in that: A guide ring (3) is placed above the upper sealing ring (5) on the top of the first screen (2), and the thickness of the outer wall of the guide ring (3) is greater than the thickness of one side of the inner wall of the guide ring (3).

6. The double-layer screen support frame that is easy to install according to claim 5, characterized in that: The vertical cross-sections of the lower sealing ring (6) and the upper sealing ring (5) are both L-shaped, and the first screen (2) is located in the grooves of the lower sealing ring (6) and the upper sealing ring (5) facing each other.

7. The double-layer screen support frame that is easy to install according to claim 6, characterized in that: The bolt (7) and the nut (71) are used in combination, and the bolt (7) passes through the mesh of the first screen (2) and is threadedly connected to the nut (71).

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