An inorganic membrane filter for removal of primary brine precipitate in the production of caustic soda

Abstract

The utility model relates to inorganic membrane filter technical field, and disclose a kind of for removing inorganic membrane filter of alkali primary brine precipitate, including filter cartridge, the top end of filter cartridge is fixedly equipped with upper end cap, the bottom of upper end cap is fixedly installed with the lower end cap being communicated with filter cartridge, the inside of filter cartridge top is provided with the first limit sleeve being communicated with upper end cap, and the inside of filter cartridge bottom end is provided with fixed disc, the inside of fixed disc is provided with the second limit sleeve being one-to-one corresponding distribution between first limit sleeve, the inside of first limit sleeve and second limit sleeve is jointly movable sleeve with filter core. The inorganic membrane filter for removing alkali primary brine precipitate, by the dismounting of fixed sleeve can remove the location of filter core, at this time, each filter core in filter cartridge can be individually disassembled, and by pull ring, filter core can be pulled to facilitate its from the inside of filter cartridge, to further facilitate the disassembly and replacement of filter core.

Description

Technical Field

[0001] This utility model relates to the field of inorganic membrane filter technology, and specifically discloses an inorganic membrane filter for removing precipitates from primary brine in alkali production. Background Technology

[0002] The primary brine precipitate formed during the alkali production process mainly includes those removed by precipitation. The precipitate formed by plasma needs to be removed by using an inorganic membrane filter.

[0003] Inorganic membrane filters can be cleaned by backwashing their internal filter elements. However, after prolonged use, inorganic membrane filters also require periodic replacement of their internal filter elements. Currently, the filter elements inside inorganic membrane filters cannot be disassembled individually, making filter element replacement quite troublesome. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, this application aims to provide an inorganic membrane filter for removing precipitates from primary brine in alkali production, comprising a filter cartridge, an upper end cover fixedly fitted at the top of the filter cartridge, a lower end cover fixedly installed at the bottom of the upper end cover communicating with the filter cartridge, a first limiting sleeve communicating with the upper end cover being provided inside the top of the filter cartridge, and a fixing disk being provided inside the bottom of the filter cartridge, wherein a second limiting sleeve is provided inside the fixing disk in a one-to-one correspondence with the first limiting sleeve, and a filter cartridge is movably fitted inside the first and second limiting sleeves. The filter element has a first sealing gasket located above the filter element inside the first limiting sleeve, a second sealing gasket located below the filter element inside the fixed plate, an internally threaded sleeve corresponding to the first limiting sleeve inside the upper end cover, and an inlet pipe on the outer side of the upper end cover. A fixed sleeve with its bottom end movably fitted inside the top end of the first limiting sleeve is installed inside the internally threaded sleeve. An inlet groove runs through the bottom end of the fixed sleeve. A third sealing gasket located above the internally threaded sleeve is installed on the outer side of the fixed sleeve. An outlet pipe is provided at the bottom of the lower end cover.

[0005] Preferably, a connecting plate that is circumferentially distributed and adapted to the filter element is provided between the first limiting sleeve and the second limiting sleeve.

[0006] Preferably, a connecting rod is provided in the middle of the top of the filter element, and a pull ring located inside the fixing sleeve is fixedly fitted on the outer side of the top of the connecting rod.

[0007] Preferably, the top of the fixing sleeve is provided with a hexagonal prism.

[0008] The advantages of this utility model are as follows: 1. This inorganic membrane filter for removing precipitates from primary brine in alkali production can release the filter element's restriction by disassembling the fixing sleeve. At this time, each filter element inside the filter cartridge can be disassembled individually, and the filter element can be pulled out from inside the filter cartridge by a pull ring, thus facilitating the disassembly and replacement of the filter element.

[0009] 2. This inorganic membrane filter for removing precipitates from primary brine in alkali production uses a connecting plate to limit and guide the filter element, making it less prone to tilting during installation. This facilitates precise fitting of the bottom end of the filter element into the second limiting sleeve during installation. Attached Figure Description

[0010] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the filter cartridge of this utility model; Figure 3 This is a partial schematic diagram of the structure of this utility model; Figure 4 This is a schematic diagram of the filter element of this utility model; Figure 5 This is a schematic diagram of the upper cover of this utility model; Figure 6 This is a schematic diagram of the fixing sleeve of this utility model.

[0011] In the diagram: 1. Filter cartridge; 2. Upper end cover; 3. Lower end cover; 4. First limiting sleeve; 5. Fixing disc; 6. Second limiting sleeve; 7. Filter element; 8. First sealing gasket; 9. Second sealing gasket; 10. Internal threaded sleeve; 11. Inlet pipe; 12. Fixing sleeve; 13. Inlet groove; 14. Third sealing gasket; 15. Outlet pipe; 16. Connecting plate; 17. Connecting rod; 18. Pull ring; 19. Hexagonal prism. Detailed Implementation

[0012] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0013] The accompanying drawings in this utility model embodiment: different types of cross-sectional lines in the drawings are not labeled according to national standards, nor do they specify the material requirements of the components. They are used to distinguish the cross-sectional views of the components in the drawings.

[0014] Please see Figure 1-6An inorganic membrane filter for removing precipitates from primary brine in alkali production is disclosed. The filter includes a filter cartridge 1, with an upper end cover 2 fixedly fitted at the top. A lower end cover 3, communicating with the filter cartridge 1, is fixedly installed at the bottom of the upper end cover 2. A first limiting sleeve 4, communicating with the upper end cover 2, is provided inside the top of the filter cartridge 1. A fixing disk 5 is provided inside the bottom of the filter cartridge 1. Second limiting sleeves 6, corresponding one-to-one with the first limiting sleeves 4, are provided inside the fixing disk 5. The filter element 7 is internally housed in the sleeve 6. The first limiting sleeve 4 and the second limiting sleeve 6 work together to limit the top and bottom ends of the filter element 7, respectively. This allows the filter element 7 to be secured during installation by pressing against the first sealing gasket 8 and the second sealing gasket 9. The first limiting sleeve 4 houses the first sealing gasket 8 located above the filter element 7, and the fixing plate 5 houses the second sealing gasket 9 located below the filter element 7. The second sealing gasket 9 seals the gap between the second limiting sleeve 6 and the filter element 7, preventing leakage from the filter. Liquid discharged from the bottom of the core 7 leaks into the interior of the filter cartridge 1. The upper end cover 2 has internally threaded sleeves 10 that correspond one-to-one with the first limiting sleeve 4. An inlet pipe 11 is located on the outer side of the upper end cover 2. A fixing sleeve 12, whose bottom end is movably fitted inside the top of the first limiting sleeve 4, is fitted inside the internally threaded sleeve 10. An inlet groove 13 extends through the bottom of the fixing sleeve 12, allowing the solution transported from the inlet pipe 11 to enter the interior of the filter element 7 for filtration and separation. The outer side of the fixing sleeve 12... The set includes a third sealing gasket 14 located above the internal threaded sleeve 10. By tightening the fixing sleeve 12, the first sealing gasket 8 and the third sealing gasket 14 can be squeezed respectively. The first sealing gasket 8 seals the gap between the first limiting sleeve 4 and the filter element 7, preventing unfiltered solution from leaking from the inside of the first limiting sleeve 4 into the inside of the filter cartridge 1. The third sealing gasket 14 seals the gap between the internal threaded sleeve 10 and the fixing sleeve 12, preventing the solution inside the upper end cover 2 from leaking to the outside. The bottom of the lower end cover 3 is provided with a liquid outlet pipe 15.

[0015] Among them, a connecting plate 16 is provided between the first limiting sleeve 4 and the second limiting sleeve 6, which is equidistantly distributed in an annular shape and adapted to the filter element 7. The connecting plate 16 can limit and guide the filter element 7, so that the filter element 7 is not easy to tilt inside the filter cartridge 1 during the process of disassembling and assembling the filter element 7, so as to facilitate the replacement of the filter element 7.

[0016] The filter element 7 has a connecting rod 17 at the top center. The outer side of the top of the connecting rod 17 is fixedly fitted with a pull ring 18 located inside the fixing sleeve 12. The filter element 7 can be pulled by the pull ring 18 so that the filter element 7 can be taken out from the inside of the filter cartridge 1 for easy disassembly and replacement.

[0017] The top of the fixing sleeve 12 is provided with a hexagonal post 19, which makes it easy to disassemble and assemble the fixing sleeve 12 using a wrench.

[0018] When replacing filter element 7, use a wrench to disassemble the fixing sleeve 12 through the hexagonal post 19. This releases the limiting position on filter element 7. Pull the filter element 7 through the pull ring 18 to gradually remove it from the inside of filter element 7. At this time, the first sealing gasket 8 moves along with filter element 7. After filter element 7 is removed from the inside of the internal threaded sleeve 10, insert the filter element 7 to be replaced into the internal threaded sleeve 10, the first limiting sleeve 4, and the second limiting sleeve 6 in sequence. Fit the first sealing gasket 8 into the first limiting sleeve 4. Install the fixing sleeve 12 and tighten it with the handle. At this time, the fixing sleeve 12 can squeeze the first sealing gasket 8 and drive the filter element 7 to squeeze the second sealing gasket 9. When the fixing sleeve 12 is completely tightened and fixed, the replacement of a single filter element 7 is completed. The contents not described in detail in this instruction are existing technologies known to those skilled in the art.

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An inorganic membrane filter for removing precipitates from primary brine in alkali production, comprising a filter cartridge (1), characterized in that: The top of the filter cartridge (1) is fixedly fitted with an upper end cover (2), and the bottom of the upper end cover (2) is fixedly fitted with a lower end cover (3) that communicates with the filter cartridge (1). The top of the filter cartridge (1) is provided with a first limiting sleeve (4) that communicates with the upper end cover (2), and the bottom of the filter cartridge (1) is provided with a fixing plate (5). The fixing plate (5) is provided with second limiting sleeves (6) that correspond one-to-one with the first limiting sleeves (4). The first limiting sleeve (4) and the second limiting sleeve (6) together house a filter element (7). The first limiting sleeve (4) houses a first sealing gasket (8) located above the filter element (7). The fixed plate (5) is fitted with a second sealing gasket (9) located below the filter element (7). The upper end cover (2) is fitted with an internal threaded sleeve (10) that corresponds one-to-one with the first limiting sleeve (4). The upper end cover (2) is fitted with an inlet pipe (11) on the outside. The internal threaded sleeve (10) is fitted with a fixed sleeve (12) whose bottom end is movably fitted inside the top end of the first limiting sleeve (4). The bottom end of the fixed sleeve (12) is fitted with an inlet groove (13). The fixed sleeve (12) is fitted with a third sealing gasket (14) located above the internal threaded sleeve (10) on the outside. The lower end cover (3) is fitted with an outlet pipe (15) at the bottom.

2. An inorganic membrane filter for removing precipitates from primary brine in alkali production according to claim 1, characterized in that: A connecting plate (16) is provided between the first limiting sleeve (4) and the second limiting sleeve (6) and is distributed in an annular shape and adapted to the filter element (7).

3. An inorganic membrane filter for removing precipitates from primary brine in alkali production according to claim 1, characterized in that: A connecting rod (17) is provided in the middle of the top of the filter element (7), and a pull ring (18) located inside the fixing sleeve (12) is fixedly fitted on the outer side of the top of the connecting rod (17).

4. An inorganic membrane filter for removing precipitates from primary brine in alkali production according to claim 1, characterized in that: The top of the fixing sleeve (12) is provided with a hexagonal prism (19).

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