Refined sulfuric acid filter

Abstract

The utility model relates to the technical field of sulfuric acid filtering equipment, and discloses a refined sulfuric acid filter which comprises a filter tank body, a discharge pipe fixedly mounted at the lower end of the filter tank body, a feed pipe fixedly mounted on the outer side of the filter tank body, and a pressure gauge fixedly mounted on the filter tank body above the feed pipe, a safety valve is further fixedly installed at the position, above the pressure gauge, of the filter tank body, a top cover is fixedly installed on the filter tank body, two pore plates are fixedly installed in the filter tank body, a plurality of filter elements are fixedly installed between the two pore plates, and a lifting plate is movably connected between the filter elements. The lifting plate is arranged among the filter elements, the sleeve holes are formed in the inner side of the lifting plate, the arc-shaped scrapers which are arranged in a staggered mode are arranged on the inner sides of the sleeve holes, and elastic supporting of the inserting rings and the arc-shaped supporting mechanisms is matched, so that adhesion layers on the outer surfaces of the filter elements can be automatically cleaned by means of high-low changes of the liquid level of a medium in the filter tank body; the filtering effect of the filter element is improved and the service life of the filter element is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of sulfuric acid filtering equipment, in particular to a refined sulfuric acid filter. Background Art

[0002] The main function of the sulfuric acid filter is to remove impurities and particles in the liquid to ensure that the filtered liquid is pure, safe and pollution-free. During the working process, the sulfuric acid liquid to be filtered enters the filter through the pipeline. After passing through the filter layer of the filter element, the impurities are intercepted inside the filter bag, and the purified sulfuric acid liquid flows out from the outlet pipe to achieve the purpose of filtration;

[0003] When the filter element or other filtering structure inside the sulfuric acid filter filters sulfuric acid, it is easy for the filtered impurities to adhere to the outer surface of the filter element or other filtering structure, thereby affecting the subsequent filtering effect. For example, the Chinese utility model patent disclosed by publication number CN209967840U: a concentrated sulfuric acid filtering device, the application can filter impurities of different sizes in concentrated sulfuric acid by arranging a multi-layer filter mesh cylinder inside the cylinder body, thereby reducing the filtering resistance. However, during long-term use, the filter element will continuously intercept suspended matter, particulate matter and other impurities in the sulfuric acid solution. These impurities will gradually accumulate on the outer surface of the filter element, and the impurity layer will hinder the smooth passage of the sulfuric acid solution, increase the filtering resistance, and reduce the filtering efficiency. In addition, the filter element is installed inside the filter, which is not conducive to disassembly and cleaning of the filter element in a short period of time, thereby reducing the service life of the filter element. Utility Model Content

[0004] The purpose of the utility model is to provide a refined sulfuric acid filter, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A refined sulfuric acid filter comprises a filter tank body, a discharge pipe is fixedly installed at the lower end of the filter tank body, a feed pipe is fixedly installed on the outside of the filter tank body, a pressure gauge is fixedly installed on the filter tank body above the feed pipe, a safety valve is also fixedly installed on the filter tank body above the pressure gauge, a top cover is fixedly installed on the filter tank body, two orifice plates are fixedly installed in the filter tank body, a plurality of filter elements are fixedly installed between the two orifice plates, a lifting plate is movably connected between the plurality of filter elements, a plurality of sleeve holes are opened in the lifting plate, a surface cleaner is arranged in the lifting plate near the sleeve holes, the surface cleaner also comprises a first mounting groove opened in the lifting plate near the sleeve holes, a plurality of second mounting grooves are opened on the inner side of the first mounting groove, an insert ring is movably installed in the first mounting groove, and an arc scraper is movably installed in the second mounting groove.

[0007] As a further preferred embodiment of the present invention, a plurality of the second mounting grooves are vertically staggeredly arranged on the inner side of the first mounting groove, and the second mounting grooves are respectively connected to the first mounting groove and the sleeve hole channel, and the lifting plate located above the first mounting groove is also movably installed with a limit ring.

[0008] As a further preferred embodiment of the present invention, a plurality of arc-shaped support mechanisms are arranged on the inner side of the insert ring, and the plurality of arc-shaped support mechanisms are arranged in a staggered manner on the inner side of the insert ring. The arc-shaped support mechanisms include a metal sheet, one side of the metal sheet is fixedly mounted on the inner side of the insert ring, and the outer surface of the metal sheet is coated with a polytetrafluoroethylene layer;

[0009] Based on this, an insert ring is inserted into the first installation groove, and multiple arc-shaped support mechanisms are arranged on the inner side of the insert ring, which can support the arc-shaped scraper blades, so that one side of the multiple arc-shaped scrapers can contact the outer surface of the filter element with appropriate force.

[0010] As a further preferred embodiment of the present invention, the upper surface of the limit ring has a slope that descends from the center to the outside, and a plurality of disassembly and assembly grooves are also provided on the upper surface of the limit ring. A fixing ring is fixedly installed on the lower end of the limit ring, and the fixing ring is threadedly connected in the first installation groove, that is, the limit ring is threadedly connected to the lifting plate located above the first installation groove through the fixing ring. Based on this, the installation of the plug ring can be limited by the setting of the limit ring, and the slope on the upper surface of the limit ring can prevent the accumulation of the medium.

[0011] As a further preferred solution of the utility model, the sleeve holes are inserted and installed on the corresponding outer side of the filter element, and one side of the multiple arc-shaped scrapers on the inner side of the sleeve holes respectively contacts the outer surface of the filter element and can slide vertically.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the utility model, a lifting plate is arranged between multiple filter elements, and multiple sleeve holes are opened on the inner side of the lifting plate, and multiple staggered arc scrapers are arranged on the inner side of the sleeve holes, and in combination with the elastic support of the plug-in ring and the arc support mechanism, the attachment layer on the outer surface of the filter element can be automatically cleaned with the help of the height change of the medium liquid level in the filter tank, thereby improving the filtering effect of the filter element and extending the service life of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a cross-sectional view of the filter tank of the utility model;

[0016] Figure 3 This is a schematic diagram of the lifting plate structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the disassembled structure of the surface cleaner of the utility model;

[0018] Figure 5 It is a cross-sectional view of the surface cleaner of the utility model;

[0019] Figure 6 It is a cross-sectional view of the arc-shaped support mechanism of the utility model.

[0020] In the figure: 1. filter tank; 2. discharge pipe; 3. feed pipe; 4. pressure gauge; 5. safety valve; 6. top cover; 7. orifice plate; 8. filter element; 9. lifting plate; 10. surface cleaner; 11. arc scraper; 12. insert ring; 13. limit ring; 14. first mounting groove; 15. second mounting groove; 16. arc support mechanism; 17. fixing ring; 18. disassembly groove; 19. metal sheet; 20. sleeve hole. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1-Figure 6 As shown, a refined sulfuric acid filter provided by the utility model comprises a filter tank body 1, a discharge pipe 2 is fixedly installed at the lower end of the filter tank body 1, a feed pipe 3 is fixedly installed on the outer side of the filter tank body 1, a pressure gauge 4 is fixedly installed on the filter tank body 1 above the feed pipe 3, a safety valve 5 is also fixedly installed on the filter tank body 1 above the pressure gauge 4, a top cover 6 is fixedly installed on the filter tank body 1, two orifice plates 7 are fixedly installed in the filter tank body 1, a plurality of filter elements 8 are fixedly installed between the two orifice plates 7, a lifting plate 9 is movably connected between the plurality of filter elements 8, a plurality of sleeve holes 20 are opened in the lifting plate 9, a surface cleaner 10 is arranged near the sleeve holes 20 in the lifting plate 9, the surface cleaner 10 also comprises a first mounting groove 14 opened near the sleeve holes 20 of the lifting plate 9, a plurality of second mounting grooves 15 are opened inside the first mounting groove 14, a plug ring 12 is movably installed in the first mounting groove 14, and an arc scraper 11 is movably installed in the second mounting groove 15.

[0023] A plurality of second mounting grooves 15 are vertically staggered and arranged inside the first mounting groove 14, and the second mounting grooves 15 are respectively connected with the first mounting groove 14 and the sleeve hole 20. The lifting plate 9 located above the first mounting groove 14 is also movably installed with a limit ring 13. A plurality of arc-shaped support mechanisms 16 are arranged inside the insert ring 12. The plurality of arc-shaped support mechanisms 16 are staggered and arranged inside the insert ring 12. The arc-shaped support mechanism 16 includes a metal sheet 19. One side of the metal sheet 19 is fixedly mounted on the inside of the insert ring 12, and the outer surface of the metal sheet 19 is coated with a polytetrafluoroethylene layer. The insert ring 12 is inserted into the first mounting groove 14, and a plurality of arc-shaped support mechanisms 16 are arranged inside the insert ring 12. The arc-shaped scraper blade 11 can be supported, so that the plurality of arc-shaped scrapers can be supported. One side of the sheet 11 can be in contact with the outer surface of the filter element 8 with appropriate force. The upper surface of the limit ring 13 has a slope that decreases from the center to the outside. The upper surface of the limit ring 13 is also provided with a plurality of disassembly and assembly grooves 18. A fixing ring 17 is fixedly installed at the lower end of the limit ring 13. The fixing ring 17 is threadedly connected in the first installation groove 14, that is, the limit ring 13 is threadedly connected to the lifting plate 9 located above the first installation groove 14 through the fixing ring 17. By setting the limit ring 13, the installation of the plug ring 12 can be limited, and the slope of the upper surface of the limit ring 13 can prevent the accumulation of the medium. The sleeve hole 20 is inserted and installed on the corresponding outer side of the filter element 8, and one side of the plurality of arc-shaped scrapers 11 on the inner side of the sleeve hole 20 respectively contacts the outer surface of the filter element 8 and can slide vertically.

[0024] It should be noted that the utility model is a refined sulfuric acid filter. When installing the lifting plate 9, the orifice plate 7 on the upper layer of the filter tank body 1 can be removed first, and then the lower ends of the multiple filter elements 8 can be threadedly connected to the orifice plate 7 on the lower layer of the filter tank body 1 to complete the installation of the filter element 8. Subsequently, the multiple sleeve holes 20 in the lifting plate 9 are respectively inserted into the corresponding filter elements 8, and the multiple arc-shaped scrapers 11 on the inner side of the surface cleaner 10 are respectively in contact with the outer surface of the filter element 8. The insert ring 12 in the first installation groove 14 and the arrangement of the arc-shaped support mechanism 16 can synchronously support the multiple arc-shaped scrapers 11, so that one side of the arc-shaped scraper 11 is in contact with the outer surface of the filter element 8 with appropriate pressure, thereby ensuring The barrier lifting plate 9 can move vertically on the outer surface of the filter element 8 with the arc scraper 11 through the sleeve hole 20, and at the same time, the attached layer on the outer surface of the filter element 8 can be cleaned. When the lifting plate 9 is installed, the lifting plate 9 slides down to the bottom of the filter element 8 by its own gravity, and then the upper orifice plate 7 is reinstalled in the filter tank body 1. After sulfuric acid is injected into the filter tank body 1 through the feed pipe 3, the sulfuric acid is filtered through the filter element 8 and discharged through the discharge pipe 2. When the sulfuric acid level in the filter tank body 1 is gradually raised, the lifting plate 9 can move with the change of the sulfuric acid level, so that the multiple staggered arc scrapers 11 on the inner side of the sleeve hole 20 can perform annular cleaning on the outer surface of the filter element 8 to ensure the filtering effect of the filter element 8.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A refined sulfuric acid filter, characterized in that: The filter tank (1) comprises a filter tank body (1), a discharge pipe (2) is fixedly mounted at the lower end of the filter tank body (1), a feed pipe (3) is fixedly mounted on the outside of the filter tank body (1), a pressure gauge (4) is fixedly mounted on the filter tank body (1) above the feed pipe (3), a safety valve (5) is also fixedly mounted on the filter tank body (1) above the pressure gauge (4), a top cover (6) is fixedly mounted on the filter tank body (1), two orifice plates (7) are fixedly mounted inside the filter tank body (1), a plurality of filter elements (8) are fixedly mounted between the two orifice plates (7), and the plurality of filter elements (8) are fixedly mounted between the two orifice plates (7). A lifting plate (9) is movably connected between the filter elements (8), a plurality of sleeve holes (20) are provided in the lifting plate (9), a surface cleaner (10) is arranged in the lifting plate (9) near the sleeve holes (20), the surface cleaner (10) further comprising a first mounting groove (14) provided in the lifting plate (9) near the sleeve holes (20), a plurality of second mounting grooves (15) are provided inside the first mounting groove (14), an insert ring (12) is movably installed in the first mounting groove (14), and an arc-shaped scraper (11) is movably installed in the second mounting groove (15).

2. A refined sulfuric acid filter according to claim 1, characterized in that: A plurality of the second mounting grooves (15) are vertically staggered and arranged inside the first mounting groove (14), and the second mounting grooves (15) are respectively connected to the first mounting groove (14) and the sleeve hole (20) channel, and a limit ring (13) is also movably installed on the lifting plate (9) located above the first mounting groove (14).

3. A refined sulfuric acid filter according to claim 2, characterized in that: A plurality of arc-shaped support mechanisms (16) are arranged on the inner side of the insert ring (12), and the plurality of arc-shaped support mechanisms (16) are arranged in a staggered manner on the inner side of the insert ring (12). The arc-shaped support mechanisms (16) comprise a metal sheet (19), one side of the metal sheet (19) is fixedly mounted on the inner side of the insert ring (12), and the outer surface of the metal sheet (19) is coated with a polytetrafluoroethylene layer.

4. A refined sulfuric acid filter according to claim 2, characterized in that: The upper surface of the limiting ring (13) has a slope that descends from the center to the outside, and the upper surface of the limiting ring (13) is also provided with a plurality of disassembly and assembly grooves (18). A fixing ring (17) is fixedly installed at the lower end of the limiting ring (13), and the fixing ring (17) is threadedly connected in the first installation groove (14), that is, the limiting ring (13) is threadedly connected to the lifting plate (9) located above the first installation groove (14) through the fixing ring (17).

5. A refined sulfuric acid filter according to claim 1, characterized in that: The sleeve holes (20) are inserted and installed on the outside of the corresponding filter element (8), and one side of a plurality of arc-shaped scrapers (11) on the inside of the sleeve holes (20) respectively contacts the outer surface of the filter element (8) and can slide vertically.

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