Dry absorption concentrated acid pump filter

Abstract

The utility model relates to a dry absorption concentrated acid pump filter. The dry absorption concentrated acid pump filter comprises a first connecting plate detachably connected with an inlet of a dry absorption concentrated acid pump, a first through hole is formed in the middle of the first connecting plate, a plurality of division bars are arrayed on the hole wall of the first through hole, and a bottom plate is arranged at the bottoms of the division bars; and the plurality of division bars, the first connecting plate and the bottom plate jointly form a filter screen cover. Compared with traditional round filter holes and square filter holes, the square filter holes formed between the adjacent division bars occupy larger space under the condition of meeting the filtering requirement, so that the contact area between the filter screen cover formed by the division bars and concentrated sulfuric acid is effectively reduced, the corrosion damage to the screen cover is reduced, and the service life of the screen cover is effectively prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of filters, and in particular to a dry suction concentrated acid pump filter. Background Art

[0002] Filters are indispensable equipment in modern society, used to separate, remove or recover impurities in fluids. Their working principles include interception, adsorption, coagulation and sedimentation, and are widely used in water treatment, air purification, chemical industry, pharmaceutical industry, food, environmental protection and other fields.

[0003] In the dry suction process of acid production, in order to remove impurities in concentrated sulfuric acid, a filter screen is usually set at the inlet of the dry suction concentrated acid pump, and a number of circular filter holes are densely distributed on the filter screen. However, the contact area between this filter screen and concentrated sulfuric acid is large, and the filter screen is easily corroded and damaged by concentrated sulfuric acid, resulting in a problem of too short service life. Utility Model Content

[0004] In order to solve or partially solve the problems existing in the related art, the present application provides a dry-suction concentrated acid pump filter.

[0005] To achieve the above objectives, this application is implemented through the following technical solutions:

[0006] A dry suction concentrated acid pump filter, the dry suction concentrated acid pump filter comprising:

[0007] A first connecting plate detachably connected to the inlet of the dry suction concentrated acid pump, wherein a first through hole is provided in the middle of the first connecting plate, a plurality of spacers are arranged on the hole wall of the first through hole, and a bottom plate is provided at the bottom of the spacers;

[0008] A plurality of spacers, the first connecting plate and the bottom plate together form a filter screen cover.

[0009] Optionally, a second through hole is opened in the middle of the bottom plate, and a screen is detachably connected to the bottom of the bottom plate, and the screen completely covers the second through hole.

[0010] Optionally, the spacer is fixed to the hole walls of the first through hole and the second through hole by welding.

[0011] Optionally, the spacer is fixed to the hole walls of the first through hole and the second through hole through a detachable connection.

[0012] Optionally, the first through hole and the second through hole are circular holes.

[0013] Optionally, the first through hole and the second through hole are square holes.

[0014] Optionally, the first connecting plate, spacer bars, bottom plate and screen are all made of 304 stainless steel.

[0015] Beneficial effects of the present application: square filter holes are formed between adjacent spacers of the present application. Compared with traditional circular filter holes, the square filter holes occupy a larger space while meeting the filtering requirements, effectively reducing the contact area between the filter mesh cover formed by several spacers and concentrated sulfuric acid, thereby reducing corrosion damage to the mesh cover and effectively extending the service life of the mesh cover.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0018] Figure 1 It is a front view of the dry suction concentrated acid pump filter shown in the embodiment of the present application;

[0019] Figure 2 is a schematic structural diagram of a first connecting plate shown in an embodiment of the present application;

[0020] Figure 3 is a schematic diagram of the structure of the base plate shown in the embodiment of the present application;

[0021] Figure 4 is another structural schematic diagram of the first connecting plate shown in an embodiment of the present application;

[0022] Figure 5 It is another structural schematic diagram of the base plate shown in the embodiment of the present application.

[0023] Figure numerals: 1 first connecting plate, 2 first through hole, 3 partition bar, 4 bottom plate, 5 second through hole, 6 screen, 7 flange bolt, 8 connecting bolt. DETAILED DESCRIPTION

[0024] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific situation.

[0027] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples" or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0029] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

[0030] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

[0031] In order to make the purpose, technical solutions and beneficial effects of the present application clearer, the preferred embodiments of the present application will be described in detail below in conjunction with the accompanying drawings to facilitate understanding by technical personnel.

[0032] Embodiment 1:

[0033] See also Figure 1 and Figure 2 , a dry suction concentrated acid pump filter, the dry suction concentrated acid pump filter comprising:

[0034] A first connecting plate 1 detachably connected to the inlet of the dry suction concentrated acid pump, a first through hole 2 is opened in the middle of the first connecting plate 1, a plurality of spacers 3 are arranged on the hole wall of the first through hole 2, and a bottom plate 4 is arranged at the bottom of the spacers 3;

[0035] A plurality of spacers 3, the first connecting plate 1 and the bottom plate 4 together form a filter screen.

[0036] Specifically, the inlet pipe of the dry suction concentrated acid pump is consistent with the diameter of the first through hole 2, a flange is fixed at the pipe, and a plurality of screw holes are opened on the flange; the first connecting plate 1 is in a circular ring shape, the size of the first connecting plate 1 is consistent with the size of the flange, and a plurality of screw holes are also opened on the first connecting plate 1, and the number of screw holes on the flange corresponds to the number of screw holes on the first connecting plate 1; the bottom plate 4 is set to a disc shape; a plurality of partition bars 3 are arranged in an annular array, and together with the first connecting plate 1 and the bottom plate 4, a filtering space is formed, and there is a certain spacing between adjacent partition bars 3, and impurities with a size larger than the spacing will be isolated outside the filtering space;

[0037] Before use, the flange and the first connecting plate 1 are connected as one by the flange bolts 7, and then the device is placed in the sulfuric acid reservoir, and then the dry suction concentrated acid pump is started, and the filter starts to work. Impurities in the sulfuric acid cannot enter the filter due to the obstruction of the spacers 3, while the sulfuric acid enters the filter through the spacing between adjacent spacers 3 and enters the dry suction concentrated acid pump through the first through hole 2, thereby achieving the filtration of concentrated sulfuric acid;

[0038] In this embodiment, square filter holes are formed between adjacent partition bars 3. Compared with traditional circular filter holes, the square filter holes occupy a larger space while meeting the filtering requirements, effectively reducing the contact area between the filter mesh cover and the concentrated sulfuric acid, reducing the corrosion damage to the mesh cover, and effectively extending the service life of the mesh cover.

[0039] Embodiment 2:

[0040] See also Figure 3 Based on the first embodiment, further and optionally, a second through hole 5 is opened in the middle of the bottom plate 4 , and a screen 6 is detachably connected to the bottom of the bottom plate 4 , and the screen 6 completely covers the second through hole 5 .

[0041] Specifically, in this embodiment, the bottom plate 4 is in a circular ring shape, and a plurality of screw holes are opened on the circular ring, and the second through hole 5 in the middle is completely covered by the screen 6, and the screen 6 is fixed to the bottom plate 4 by connecting bolts 8;

[0042] When the dry suction concentrated acid pump is working, in addition to filtering sulfuric acid through the filter screen formed by the plurality of spacers 3, it can also filter through the screen 6 at the bottom. When the screen 6 is corroded and reaches its service life, the connecting bolts 8 can be removed to replace it with a new screen 6;

[0043] In this way, by opening the second through hole 5 in the middle of the bottom plate 4 and detachably connecting the screen 6 to the bottom thereof, the filtering area of ​​the filter is further increased and the filtering time is accelerated.

[0044] Further and optionally, the spacer bar 3 is fixed to the hole walls of the first through hole 2 and the second through hole 5 by welding.

[0045] The welding has high strength and good connection effect. Through welding, the spacer 3 and the first connecting plate 1 and the bottom plate 4 are better integrated, the structural rigidity is greater, and the service life of the device is further improved.

[0046] Further and optionally, the spacer bar 3 is fixed to the hole walls of the first through hole 2 and the second through hole 5 by a detachable connection.

[0047] The spacer bar 3 is fixed to the hole wall of the first through hole 2 and the second through hole 5 by bolts. When the spacer bar 3 is corroded and damaged, the bolts can be removed to replace it with a new spacer bar 3. In this way, when corrosion occurs, there is no need to replace the entire filter, which effectively saves costs.

[0048] Further and optionally, the first through hole 2 and the second through hole 5 are circular holes.

[0049] Specifically, a plurality of spacer bars 3 in an annular array form a cylindrical filter screen between the first through hole 2 and the second through hole 5 .

[0050] See also Figure 4 and Figure 5 Further and optionally, the first through hole 2 and the second through hole 5 are square holes.

[0051] Specifically, a plurality of spacer bars 3 are arranged in an array at intervals to form a cubic filter screen between the first through hole 2 and the second through hole 5 .

[0052] It should be noted that the shapes of the first through hole 2 and the second through hole 5 are not limited to circular holes or square holes, and can also be holes of other shapes. As long as the shapes of the two can achieve the effect of sulfuric acid passing through, they are within the scope of protection applied for by the present utility model. In addition, the shape design of the first through hole 2 and the second through hole 5 should be conducive to fixing the partition bar 3.

[0053] Further and optionally, the first connecting plate 1, the spacer bar 3, the bottom plate 4 and the screen 6 are all made of 304 stainless steel.

[0054] 304 stainless steel has good corrosion resistance and can resist the erosion of common corrosive media such as acids, alkalis, and salts; 304 stainless steel can still maintain good strength and rigidity at high temperatures and has good heat resistance; 304 stainless steel is a material that is easy to process hot and cold and can be easily formed by cutting, welding, bending, etc.; 304 stainless steel has good wear resistance and can resist wear and scratches, maintaining the smoothness and aesthetics of the surface;

[0055] In this embodiment, by adopting corrosion-resistant and wear-resistant 304 stainless steel, the service life of the filter is effectively improved, and the occurrence of pump failure problems caused by corrosion and damage of the filter cover during the production process, which leads to the inhalation of foreign matter into the dry-suction concentrated acid pump, is reduced.

[0056] In addition, it should be noted that the bolts used in this embodiment are all stainless steel bolts.

[0057] In summary, the adjacent spacers 3 of the present application form square filter holes. Compared with the traditional circular filter holes, the square filter holes occupy a larger space while meeting the filtering requirements, effectively reducing the contact area between the filter screen formed by the plurality of spacers 3 and the concentrated sulfuric acid, thereby reducing the corrosion damage to the screen and effectively extending the service life of the screen. The present application further increases the filtering area of ​​the filter and speeds up the filtering time by opening a second through hole 5 in the middle of the bottom plate 4 and detachably connecting a screen 6 to the bottom thereof. The spacers 3 of the present application are fixed to the hole walls of the first through hole 2 and the second through hole 5 by welding. Through the welding connection method, the filter has better integrity and greater structural rigidity, which further improves the service life of the device; the spacer 3 of the present application is fixed to the hole wall of the first through hole 2 and the second through hole 5 by bolts. When the spacer 3 is corroded and damaged, the bolts can be removed to replace it with a new spacer 3, so that when corrosion occurs, there is no need to replace the entire filter, which effectively saves costs; the present application adopts corrosion-resistant and wear-resistant 304 stainless steel to effectively improve the service life of the filter and reduce the occurrence of pump failure problems caused by corrosion and damage of the filter cover during production, which leads to the inhalation of foreign matter into the dry-suction concentrated acid pump.

[0058] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application; the dimensions of the drawings are not related to the specific objects, and the dimensions of the objects can be changed arbitrarily.

Claims

1. A dry suction concentrated acid pump filter, characterized in that: The dry suction concentrated acid pump filter comprises: A first connecting plate (1) detachably connected to the inlet of the dry suction concentrated acid pump, a first through hole (2) is provided in the middle of the first connecting plate (1), a plurality of spacers (3) are arranged on the hole wall of the first through hole (2), and a bottom plate (4) is provided at the bottom of the spacers (3); A plurality of spacers (3), the first connecting plate (1) and the bottom plate (4) together form a filter screen.

2. The dry suction concentrated acid pump filter according to claim 1, characterized in that: A second through hole (5) is provided in the middle of the bottom plate (4), and a screen (6) is detachably connected to the bottom of the bottom plate (4), wherein the screen (6) completely covers the second through hole (5).

3. The dry suction concentrated acid pump filter according to claim 1, characterized in that: The spacer bar (3) is fixed to the hole walls of the first through hole (2) and the second through hole (5) by welding.

4. The dry suction concentrated acid pump filter according to claim 3, characterized in that: The spacer bar (3) is fixed to the hole walls of the first through hole (2) and the second through hole (5) through a detachable connection.

5. The dry suction concentrated acid pump filter according to claim 1, characterized in that: The first through hole (2) and the second through hole (5) are circular holes.

6. The dry suction concentrated acid pump filter according to claim 1, characterized in that: The first through hole (2) and the second through hole (5) are square holes.

7. The dry suction concentrated acid pump filter according to any one of claims 1 to 6, characterized in that: The first connecting plate (1), the spacer bar (3), the bottom plate (4) and the screen (6) are all made of 304 stainless steel.

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