A scraper for suction filter and a novel suction filter

Abstract

The utility model relates to the field of solid-liquid separation, and in particular to a scraper for a suction filter and a new suction filter, comprising a blade, a rotating member, an elastic member and a knife holder; the middle part of the blade is rotatably connected to the support end of the knife holder through the rotating member; the first end of the blade is connected to the knife holder through an elastic member; the elastic member applies elastic force to the first end of the blade, so that the blade rotates around the rotating member as an axis, and the second end of the blade is attached to the discharge surface of the suction filter. The utility model adopts an elastic member to drive the blade to fit tightly to the discharge surface of the suction filter, but at the same time, it can also move to a certain extent to adapt to the uneven changes of the discharge surface of the filter plate, etc. Compared with a flexible scraper, the material peeling degree is higher and the speed is faster, and it can well protect the discharge surface from damage, thereby extending the service life of the equipment.

Description

Technical Field

[0001] The utility model relates to the field of solid-liquid separation, in particular to a scraper for a suction filter and a novel suction filter. Background Art

[0002] Vacuum filtration technology is a common technology in the field of solid-liquid separation. Related equipment includes belt, disc and cylinder types. The filter plates used in disc and cylinder types are mostly made of ceramic or metal materials. During operation, it is necessary to peel off the adsorbed materials on the surface for unloading. The commonly used equipment for stripping is a scraper, which is generally a fixed scraper. During use, due to factors such as equipment deformation, the surface of the filter plate becomes uneven, making it difficult for the fixed scraper to meet the actual needs and always fit the unloading surface. Instead, the scraper is far away from the surface of the filter plate, resulting in poor scraping, or the scraper is stuck on the filter plate, causing wear on the surface of the filter plate, ultimately resulting in low filtration efficiency and short equipment life.

[0003] Therefore, how to ensure that the scraper fits tightly against the discharge surface while preventing the scraper from damaging the discharge surface, and taking into account both the discharge efficiency and the service life of the equipment, is an urgent problem to be solved by technical personnel in this field. Utility Model Content

[0004] The utility model aims to provide a scraper for a suction filter and a novel suction filter, so as to solve the problems of low discharge efficiency and short equipment service life caused by uncontrollable contact between the scraper and the discharge surface in the prior art.

[0005] In order to solve the above technical problems, the utility model provides a scraper for a suction filter, comprising a blade, a rotating part, an elastic part and a blade holder;

[0006] The middle portion of the blade is rotatably connected to the support end of the blade holder through the rotating member;

[0007] The first end of the blade is connected to the blade holder via an elastic member;

[0008] The elastic member applies elastic force to the first end of the blade, so that the blade rotates with the rotating member as the axis, and the second end of the blade is attached to the discharge surface of the filter.

[0009] Optionally, in the scraper for the filter, the rotating part is a hinge.

[0010] Optionally, in the scraper for the filter, the elastic member is at least one of a spring and a reed.

[0011] Optionally, in the scraper for the filter, the elastic member is a pre-compressed elastic member.

[0012] Optionally, in the scraper for the filter, the blade is a corrosion-resistant blade.

[0013] Optionally, in the scraper for the filter, the blade is at least one of a plastic blade, a ceramic blade and a stainless steel blade.

[0014] Optionally, in the scraper for the filter, the blade holder is fixed to the base by bolts.

[0015] Optionally, in the scraper for the filter, a plurality of blades are arranged on the same blade holder.

[0016] A novel suction filter comprises any one of the above-mentioned scrapers for the suction filter.

[0017] Optionally, in the scraper for the suction filter, the novel suction filter is a cartridge type suction filter;

[0018] The second end of the blade is attached to the outer surface of the filter cartridge of the cartridge filter.

[0019] The scraper for the filter provided by the utility model includes a blade, a rotating member, an elastic member and a knife holder; the middle part of the blade is rotatably connected to the support end of the knife holder through the rotating member; the first end of the blade is connected to the knife holder through the elastic member; the elastic member applies elastic force to the first end of the blade, so that the blade rotates around the rotating member as the axis, and the second end of the blade is attached to the discharge surface of the filter. The utility model adopts an elastic member to drive the blade to fit tightly to the discharge surface of the filter, but it can also move to a certain extent to adapt to the uneven changes of the discharge surface such as the filter plate. Compared with the flexible scraper, the material peeling degree is higher and the speed is faster, and the discharge surface can be well protected from damage, thereby extending the service life of the equipment. The utility model also provides a new type of filter with the above-mentioned beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 The utility model is a schematic structural diagram of a specific implementation of the scraper for the filter provided by the utility model.

[0022] In the figure, it includes 01-filter cartridge, 02-slurry, 03-base, 10-blade, 20-rotating part, 30-elastic part, 40-tool holder, and 50-bolt. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0024] The core of the utility model is to provide a scraper for a suction filter, and a structural schematic diagram of a specific implementation method thereof is shown as follows Figure 1 As shown, it is called the specific embodiment 1, which includes a blade 10, a rotating member 20, an elastic member 30 and a blade holder 40;

[0025] The middle portion of the blade 10 is rotatably connected to the support end of the blade holder 40 through the rotating member 20;

[0026] The first end of the blade 10 is connected to the blade holder 40 via an elastic member 30;

[0027] The elastic member 30 applies elastic force to the first end of the blade 10 to rotate the blade 10 around the rotating member 20 , so that the second end of the blade 10 is attached to the discharge surface of the filter.

[0028] The discharge surface is the surface on which the slurry 02 is placed by the filter press, such as a filter cartridge 01 or a filter disc, Figure 1 The suction filter in the figure is a cartridge type suction filter, so the corresponding discharge surface is the outer surface of the filter cartridge 01.

[0029] Preferably, the rotating member is a hinge. The hinge has good working stability and can be applied to the connection between blades 10 and blade holders 40 of various shapes, which can greatly improve the versatility of the utility model.

[0030] The elastic member 30 is at least one of a spring and a leaf spring, which are simple in structure, easy to install, and highly reliable. Of course, other types of elastic members 30 may also be used to support the blade 10, and the present invention is not limited thereto.

[0031] Furthermore, the elastic member 30 is a pre-compressed elastic member 30. The elastic member 30 is connected to the blade 10 at the first end, and is in a pre-compressed state between the first end and the blade holder 40 and pushes upward, forcing the second end of the blade 10 to press downward and fit tightly against the discharge surface (see Figure 1), the slurry 02 is unloaded from the unloading surface, and the pre-compressed elastic member 30 between the blade 10 and the blade holder 40 is designed, which can greatly reduce the space occupied, is conducive to the miniaturization of the equipment, and at the same time improves the working stability of the equipment.

[0032] In addition, the blade 10 is a corrosion-resistant blade 10. The blade 10 is in a relatively humid environment for a long time, and the use of the corrosion-resistant blade 10 can greatly extend the service life of the device. Further, the blade 10 is at least one of a plastic blade 10, a ceramic blade 10, and a stainless steel blade 10. The above three corrosion-resistant blades 10 are three types of blades 10 with low cost, stable properties, and strong corrosion resistance. One of them or a combination of multiple ones can be used, and the utility model is not limited here.

[0033] In addition, the blade holder 40 is fixed to the base 03 by bolts 50. Of course, the scraper for the filter of the utility model should be firmly fixed. In the preferred embodiment, the blade holder 40 is fixed to the corresponding base 03 by bolts 50. The bolts 50 are firmly and reliably connected, and the installation is convenient, which can greatly improve the installation efficiency.

[0034] As a specific implementation, a plurality of blades 10 are arranged on the same blade holder 40. The plurality of blades 10 are installed on the same blade holder 40, which can greatly increase the unloading area and improve the unloading efficiency. The plurality of blades 10 can also be arranged front and back along the moving direction of the unloading surface, thereby reducing the residue in the unloading process and improving the unloading efficiency.

[0035] The scraper for the filter provided by the utility model comprises a blade 10, a rotating member 20, an elastic member 30 and a knife holder 40; the middle part of the blade 10 is rotatably connected to the support end of the knife holder 40 through the rotating member 20; the first end of the blade 10 is connected to the knife holder 40 through the elastic member 30; the elastic member 30 applies elastic force to the first end of the blade 10, so that the blade 10 rotates around the rotating member 20 as an axis, and the second end of the blade 10 is attached to the discharge surface of the filter. The utility model adopts the elastic member 30 to drive the blade 10 to fit tightly to the discharge surface of the filter, but at the same time, it can also move to a certain extent to adapt to the uneven changes of the discharge surface such as the filter plate. Compared with the flexible scraper, the material peeling degree is higher and the speed is faster, and the discharge surface can be well protected from damage, thereby extending the service life of the equipment.

[0036] The utility model also provides a novel suction filter, a specific implementation of which is referred to as specific implementation 2, and comprises a scraper for the suction filter as described in any one of the above.

[0037] The structural schematic diagram of the new suction filter provided by the utility model can also be referred to Figure 1For specific technical details about the scraper for the filter, please refer to the above text, and the utility model is not limited here.

[0038] As a specific implementation, the novel suction filter is a cartridge type suction filter;

[0039] The second end of the blade 10 is attached to the outer surface of the filter cartridge 01 of the cartridge filter.

[0040] The outer surface of the filter cartridge 01 is drum-shaped, and the blade 10 contacts the outer surface of the filter cartridge 01 at a certain angle. At the same time, the blade 10 is pressed down onto the outer surface by the blade holder 40, which can greatly improve the fit between the filter cartridge 01 and the blade 10 during the rolling process.

[0041] The scraper for the filter provided by the utility model comprises a blade 10, a rotating member 20, an elastic member 30 and a knife holder 40; the middle part of the blade 10 is rotatably connected to the support end of the knife holder 40 through the rotating member 20; the first end of the blade 10 is connected to the knife holder 40 through the elastic member 30; the elastic member 30 applies elastic force to the first end of the blade 10, so that the blade 10 rotates around the rotating member 20 as an axis, and the second end of the blade 10 is attached to the discharge surface of the filter. The utility model adopts the elastic member 30 to drive the blade 10 to fit tightly to the discharge surface of the filter, but at the same time, it can also move to a certain extent to adapt to the uneven changes of the discharge surface such as the filter plate. Compared with the flexible scraper, the material peeling degree is higher and the speed is faster, and the discharge surface can be well protected from damage, thereby extending the service life of the equipment.

[0042] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0043] It should be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0044] The above is a detailed introduction to the scraper for the filter and the novel filter provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A scraper for a suction filter, characterized in that: It includes a blade, a rotating part, an elastic part and a blade holder; The middle portion of the blade is rotatably connected to the support end of the blade holder through the rotating member; The first end of the blade is connected to the blade holder via an elastic member; The elastic member applies elastic force to the first end of the blade, so that the blade rotates with the rotating member as the axis, and the second end of the blade is attached to the discharge surface of the filter.

2. The scraper for a suction filter according to claim 1, characterized in that: The rotating member is a hinge.

3. The scraper for a suction filter according to claim 1, characterized in that: The elastic member is at least one of a spring and a reed.

4. The scraper for a suction filter according to claim 1, characterized in that: The elastic member is a pre-compressed elastic member.

5. The scraper for a suction filter according to claim 1, characterized in that: The blade is a corrosion-resistant blade.

6. The scraper for a suction filter according to claim 5, characterized in that: The blade is at least one of a plastic blade, a ceramic blade and a stainless steel blade.

7. The scraper for a suction filter according to claim 1, characterized in that: The tool holder is fixed on the base by bolts.

8. The scraper for a suction filter according to claim 1, characterized in that: A plurality of blades are arranged on the same blade holder.

9. A new type of suction filter, characterized in that: It comprises the scraper for a suction filter as described in any one of claims 1 to 8.

10. The novel suction filter according to claim 9, characterized in that: The novel suction filter is a cartridge type suction filter; The second end of the blade is attached to the outer surface of the filter cartridge of the cartridge filter.

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