A mechanically adjustable gap mud scraper

Abstract

The present disclosure relates to the technical field of filtering equipment, and one embodiment of the present disclosure provides a mechanical mud scraping device with adjustable gap, which comprises a filter cylinder and a plurality of scrapers, the scrapers are arranged inside the filter cylinder, an inner cover is arranged inside the filter cylinder, a pair of annular frames are arranged outside the filter cylinder, a fixing assembly is arranged outside the inner cover, a gap adjusting assembly is arranged between the scrapers and the inner cover, the gap adjusting assembly comprises a plurality of pairs of connecting frames, the connecting frames are rotationally connected in the inner cover through pin shafts, the plurality of connecting frames are uniformly distributed around the inner surface of the inner cover, and the upper end of the scraper is movably sleeved on the surface of the inner cover. Through the above technical solution, the technical problem that the existing mud scraping device in the related art / prior art is mostly fixed in structure, the gap between the mud scraping plate and the cylinder wall cannot be dynamically adjusted after installation, and the wear caused by the long-term contact between the mud scraping plate and the cylinder wall shortens the service life of the mud scraping plate to the normal service period is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of filtration equipment, and more specifically, to a mechanical sludge scraper with adjustable gap. Background Technology

[0002] In the field of fluid media treatment containing impurities, the sludge scraper is a key component for removing sludge from the inner wall of the equipment. Its ability to adjust the gap between the scraper and the inner wall directly affects the scraping efficiency and the equipment's lifespan. However, traditional mechanical sludge scrapers generally suffer from the technical bottleneck of a fixed and unadjustable gap. This leads to continuous contact and wear between the scraper blade and the cylinder wall during operation, severely restricting the equipment's reliability and service life.

[0003] Existing sludge scraping devices mostly adopt a fixed structure, and the gap between the scraper blade and the cylinder wall cannot be dynamically adjusted after installation. When the equipment processes fluid media containing different impurities, the fixed gap is either too small, leading to increased friction between the scraper blade and the cylinder wall, causing scraper blade wear or even equipment jamming; or too large, resulting in incomplete sludge scraping, with sludge residue affecting the equipment's treatment effect. For example, in wastewater treatment filters or electromagnetic descaling devices, the wear caused by the long-term contact between the traditional scraper blade and the cylinder wall will shorten the scraper blade's lifespan to the normal service life, and the metal debris generated by friction may also contaminate the fluid medium.

[0004] Furthermore, traditional sludge scraping devices lack an adaptive adjustment mechanism, making it impossible to dynamically adjust the scraping gap according to the equipment's operating status. When the inner wall of the equipment undergoes slight deformation due to long-term use, the fixed-gap scraper blades may experience uneven contact, leading to poor scraping performance or increased wear in certain areas. When dealing with dense and stubborn sludge, the fixed-gap scraper blades, lacking elastic adjustment space, are prone to sudden increases in scraping resistance, excessive equipment load, and even overload damage to the drive unit.

[0005] As fluid media processing technology develops towards higher efficiency and intelligence, traditional fixed-gap scraping devices can no longer meet the application requirements under complex working conditions. There is an urgent need to develop a new type of device that can dynamically adjust the scraping gap, reduce wear, and improve scraping efficiency to solve the industry pain points of "rapid wear, poor scraping, and weak adaptability," and promote the technological upgrade of fluid media processing equipment containing impurities. Utility Model Content

[0006] To overcome the above-mentioned defects, the embodiments of this disclosure provide a mechanical sludge scraping device with adjustable gap, which solves the technical problem that existing sludge scraping devices in related technologies / prior technologies mostly adopt a fixed structure, the gap between the scraper blade and the cylinder wall cannot be dynamically adjusted after installation, and the wear caused by long-term contact between the scraper blade and the cylinder wall will shorten the life of the scraper blade to the normal service cycle.

[0007] According to one aspect, at least one embodiment of the present disclosure provides a mechanical sludge scraping device with adjustable gap, comprising: The filter cylinder and several scrapers, all of which are disposed inside the filter cylinder; The filter housing comprises an inner cover, a pair of annular frames, and a fixing assembly. The inner cover is disposed inside the filter cylinder, the pair of annular frames are disposed outside the filter cylinder, and the fixing assembly is disposed outside the inner cover. A spacing adjustment component is disposed between the scraper and the inner cover; The spacing adjustment assembly includes several pairs of connecting frames, which are rotatably connected to the inner cover via pins. Several connecting frames are evenly distributed around the inner surface of the inner cover. The scraper is disposed between a pair of connecting frames, and the upper end of the scraper is movably fitted inside the surface of the inner cover.

[0008] As a further technical solution, the surface of the connecting frame is provided with a movable hole, and a moving block is slidably connected in the movable hole. The scraper is rotatably connected between a pair of opposing moving blocks by a pin shaft, and a spring is connected between the connecting frame and the inner wall of the inner cover.

[0009] As a further technical solution, a mounting frame is provided on the side surface of the ring frame, and a control motor is provided in one of the mounting frames. A push frame is provided at the output end of the control motor, and the end face of the push frame is simultaneously in contact with the end faces of several scrapers.

[0010] As a further technical solution, a slot is provided on the side end face of the push frame, and an electric push rod is provided on another mounting frame. A block is provided at the output end of the electric push rod, and one end of the block is inserted into the slot.

[0011] As a further technical solution, the fixing component includes several connecting posts, which are fixed around the opposite end faces of the inner cover. One end of each connecting post is fixedly connected to the annular frame, and several fixing holes are provided on the surface of the annular frame.

[0012] As a further technical solution, a number of support strips are provided around the surface of the inner cover, and the support strips are attached to the two sides of the scraper.

[0013] As a further technical solution, the card slot and the card block have a polygonal cross-section.

[0014] As a further technical solution, the push frame has an overall cross-shaped structure, and several ends of the push frame are bent and transitioned in the same direction. Several bent parts of the push frame slide and fit against the corresponding scraper end face.

[0015] As a further technical solution, the cross-section of the movable block is I-shaped, and both ends of the movable block passing through the movable hole slide and fit against the two sides of the connecting frame.

[0016] The beneficial effects of the embodiments disclosed herein are as follows: 1. In this disclosure, the spacing adjustment component is connected to the inner cover via a connecting frame and a pin. With the help of the movable block in the movable hole, the scraper can slide on the surface of the inner cover to adjust the spacing with the cylinder wall. The spring provides elastic support and maintains the gap under normal conditions to reduce wear. The push frame is driven by a control motor and can adjust the spacing of multiple scrapers simultaneously. The electric push rod and the slot cooperate to lock the position, realizing dynamic adjustment of the gap. This solves the problem of severe wear caused by fixed gaps in traditional devices, improves the service life of the scraper, adapts to different mud thicknesses, ensures thorough scraping, and avoids affecting the scraping effect or equipment operation due to improper gaps.

[0017] 2. In this disclosure, the fixing component rigidly connects the inner cover and the annular frame through connecting columns. The annular frame is fixed to the filter cylinder through fixing holes, ensuring that the sludge scraping device is stably installed. The connecting columns are evenly distributed at both ends of the inner cover to withstand the lateral force and vibration during sludge scraping, preventing the device from loosening. This provides stable support for the spacing adjustment component, ensuring accurate positioning of the scraper when adjusting the gap, guaranteeing stable sludge scraping effect, solving the problem of unstable installation of traditional devices affecting sludge scraping efficiency, improving the reliability of equipment operation, and is suitable for various filtration equipment. Installation and maintenance are convenient. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure; Figure 2 This is an isometric drawing of the present disclosure; Figure 3 This is an isometric sectional view of the present disclosure; Figure 4 This is a cross-sectional view of the present disclosure; Figure 5 Appendix to this disclosure Figure 3 Enlarged view of part A in the middle; In the diagram: 1. Filter cylinder; 2. Scraper; 3. Inner cover; 4. Circular frame; 5. Spacing adjustment assembly; 5-1. Connecting frame; 5-2. Movable hole; 5-3. Moving block; 5-4. Spring; 5-5. Mounting frame; 5-6. Control motor; 5-7. Pushing frame; 5-8. Slot; 5-9. Electric push rod; 5-10. Locking block; 6. Fixing assembly; 6-1. Connecting column; 6-2. Fixing hole; 7. Support bar. Detailed Implementation

[0020] The present disclosure 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 merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0021] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0022] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0023] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0025] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] like Figures 1-5 As shown, it illustrates a mechanical sludge scraper with adjustable gap in one embodiment of the present disclosure, comprising: The filter cylinder 1 and several scrapers 2 are all disposed inside the filter cylinder 1; The filter cylinder 1 is equipped with an inner cover 3, a pair of annular frames 4, and a fixing component 6. The inner cover 3 is disposed inside the filter cylinder 1, the pair of annular frames 4 are disposed outside the filter cylinder 1, and the fixing component 6 is disposed outside the inner cover 3. A spacing adjustment component 5 is disposed between the scraper 2 and the inner cover 3; The spacing adjustment assembly 5 includes several pairs of connecting frames 5-1, which are rotatably connected to the inner cover 3 via pins. The connecting frames 5-1 are evenly distributed around the inner surface of the inner cover 3. A scraper 2 is positioned between a pair of connecting frames 5-1, with its upper end movably fitted inside the surface of the inner cover 3. A movable hole 5-2 is provided on the surface of each connecting frame 5-1, and a moving block 5-3 is slidably fitted within the movable hole 5-2. The scraper 2 is rotatably connected between a pair of opposing moving blocks 5-3 via pins. A spring 5-4 is connected to the inner wall of the inner cover 3. A mounting bracket 5-5 is provided on the side surface of the annular frame 4. A control motor 5-6 is provided in one of the mounting brackets 5-5. A pusher 5-7 is provided at the output end of the control motor. The end face of the pusher 5-7 is in contact with the end faces of several scrapers 2. A slot 5-8 is opened on the side end face of the pusher 5-7. An electric push rod 5-9 is provided on the other mounting bracket 5-5. A locking block 5-10 is provided at the output end of the electric push rod 5-9. One end of the locking block 5-10 is inserted into the slot 5-8.

[0027] In some examples, a spacing adjustment component 5 is designed to achieve flexible adjustment of the distance between the scraper 2 and the inner wall of the filter cylinder 1. This component is based on the connecting frame 5-1 that is rotatably connected to the inner cover 3 by a pin. Multiple sets of connecting frames 5-1 are evenly distributed on the inner surface of the inner cover 3 to form a ring support structure. The scraper 2 is mounted between a pair of connecting frames 5-1, and its upper end can slide in the guide groove on the surface of the inner cover 3 to ensure movement stability. The moving block 5-3 in the movable hole 5-2 on the surface of the connecting frame 5-1 can slide along the channel. The scraper 2 is rotatably connected to the moving block 5-3 by a pin, so that the scraper 2 can move inward and outward under the drive of the connecting frame 5-1. The spring 5-4 between the connecting frame 5-1 and the inner wall of the inner cover 3 provides elastic support, so that a certain gap is maintained between the scraper 2 and the inner wall of the filter cylinder 1 under normal conditions.

[0028] The control motor 5-6 on the outer ring frame 4 drives the push frame 5-7 to move laterally. The end face of the push frame 5-7 is in contact with multiple scrapers 2, and the scrapers 2 are pushed to slide along the surface of the inner cover 3 in a synchronous manner, changing the distance between the scrapers 2 and the inner wall of the filter cylinder 1. The locking block 5-10 at the output end of the electric push rod 5-9 is inserted into the slot 5-8 of the push frame 5-7 to lock the position of the push frame 5-7 and ensure the stability after the distance is adjusted. When the thickness of the mud on the cylinder wall changes, the control motor 5-6 starts the push frame 5-7 to adjust the distance of the scrapers 2.

[0029] Through the rotational adjustment of the connecting frame 5-1, the sliding guidance of the moving block 5-3, the pressure compensation of the spring 5-4, and the linkage control of the push frame 5-7, the spacing adjustment component 5 realizes the dynamic adjustment of the distance between the scraper 2 and the inner wall of the filter cylinder 1, thereby improving the efficiency and effect of sludge scraping.

[0030] like Figures 1-5 As shown in the figure, the fixing component 6 in this embodiment includes a plurality of connecting posts 6-1. The connecting posts 6-1 are fixed around the opposite end faces of the inner cover 3. One end of the connecting post 6-1 is fixedly connected to the annular frame 4. The surface of the annular frame 4 is provided with a plurality of fixing holes 6-2.

[0031] In some examples, a fixing component 6 is designed to ensure that the sludge scraping device is stably installed inside the equipment. This component uses the connecting column 6-1 fixed around the opposite end faces of the inner cover 3 as the connecting hub. One end of the connecting column 6-1 is firmly welded to the ring frame 4 to form a stable mechanical transmission structure. The fixing holes 6-2 evenly distributed on the surface of the ring frame 4 can be connected to the inner wall of the equipment or other supporting structures through bolts to achieve overall fixation of the device. The connecting column 6-1 is made of high-strength alloy steel and the surface is treated with anti-corrosion to withstand the lateral force generated when the scraper 2 scrapes sludge and the vibration of the equipment operation.

[0032] By connecting column 6-1 to rigidly support the ring frame 4 and fixing hole 6-2 to the external structure with bolts, fixing component 6 reliably fixes the sludge scraping device inside the equipment, ensuring that it maintains a stable position during long-term operation and avoiding the sludge scraping effect due to loosening.

[0033] For example, such as Figure 2 As shown, a number of support strips 7 are arranged around the surface of the inner cover 3, and the support strips 7 are attached to the two sides of the scraper 2.

[0034] In some examples, several sets of support bars 7 can be used to support the two sides of the scraper 2, which can increase the support force on the scraper 2 and make the scraper 2 more effective in bearing force.

[0035] For example, such as Figure 3 As shown, the card slot 5-8 and the card block 5-10 have polygonal cross-sections.

[0036] In some examples, the polygonal structure maintains the coaxiality of the slot 5-8 and the block 5-10, thus maintaining the locking effect on the pusher 5-7.

[0037] For example, such as Figure 4 As shown, the push frame 5-7 has a cross-shaped structure. Several ends of the push frame 5-7 are bent in the same direction and transition. Several bent parts of the push frame 5-7 slide and fit against the corresponding end face of the scraper 2.

[0038] In some examples, a cross-shaped structure, combined with the positional distribution of multiple scrapers 2, and through bending angles, can generate friction with the surface of the scraper 2 during rotation to achieve a pushing effect.

[0039] For example, such as Figure 5 As shown, the movable block 5-3 has an I-shaped cross-section, and both ends of the movable block 5-3 pass through the movable hole 5-2 and slide against the surfaces on both sides of the connecting frame 5-1.

[0040] In some examples, the I-shaped structure prevents the movable block 5-3 from falling off during its movement within the movable hole 5-2.

[0041] In actual use: the connecting post 6-1 of the fixing component 6 is fixed to both ends of the inner cover 3, and the other end of the connecting post 6-1 is connected to the ring frame 4. The ring frame 4 is installed outside the filter cylinder 1 through the fixing hole 6-2. The inner cover 3 is placed inside the filter cylinder 1. The connecting frame 5-1 of the spacing adjustment component 5 is rotatably connected to the inner cover 3 through the pin. The movable block 5-3 is fitted inside the movable hole 5-2 on the surface of the connecting frame 5-1. The scraper 2 is connected between the movable blocks 5-3 through the pin. The connecting frame 5-1 and the inner cover 3 are connected by a spring 5-4. The control motor 5-6 is installed in the mounting bracket 5-5 on the side surface of the ring frame 4. The control motor 5-6 outputs... The end of the push frame 5-7 is connected to the end of the filter cylinder 1. The end face of the push frame 5-7 is in contact with the scraper 2. The other mounting frame 5-5 is equipped with an electric push rod 5-9. The output end of the electric push rod 5-9 is fitted with the slot 5-8 of the push frame 5-7. The support strip 7 on the surface of the inner cover 3 is in contact with both sides of the scraper 2. When the filter cylinder 1 is running, the spring 5-4 keeps the scraper 2 and the cylinder wall in a gap. When it is necessary to scrape mud, the control motor 5-6 drives the push frame 5-7 to move, which drives the scraper 2 to approach the cylinder wall to start scraping. The electric push rod 5-9 pushes the slot 5-10 to insert into the slot 5-8 and locks it. After the mud is scraped, the control motor 5-6 reverses and the spring 5-4 drives the scraper 2 to reset.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A mechanical sludge scraping device with adjustable gap, characterized in that, include: The filter cylinder (1) and several scrapers (2) are provided inside the filter cylinder (1); The inner cover (3), a pair of annular frames (4) and a fixing component (6) are provided inside the filter cylinder (1), the pair of annular frames (4) are provided outside the filter cylinder (1), and the fixing component (6) is provided outside the inner cover (3). A spacing adjustment component (5) is disposed between the scraper (2) and the inner cover (3); The spacing adjustment component (5) includes several pairs of connecting frames (5-1). The connecting frames (5-1) are rotatably connected to the inner cover (3) by a pin. Several connecting frames (5-1) are evenly distributed around the inner surface of the inner cover (3). The scraper (2) is disposed between a pair of connecting frames (5-1). The upper end of the scraper (2) is movably fitted inside the surface of the inner cover (3).

2. The mechanical sludge scraping device with adjustable gap according to claim 1, characterized in that, The connecting frame (5-1) has a movable hole (5-2) on its surface. A movable block (5-3) is slidably connected in the movable hole (5-2). The scraper (2) is rotatably connected between a pair of opposing movable blocks (5-3) by a pin. A spring (5-4) is connected between the connecting frame (5-1) and the inner wall of the inner cover (3).

3. The mechanical sludge scraping device with adjustable gap according to claim 2, characterized in that, The annular frame (4) has a mounting bracket (5-5) on its side surface. A control motor (5-6) is installed in the mounting bracket (5-5) on one side. A pusher (5-7) is installed at the output end of the control motor (5-6). The end face of the pusher (5-7) is in contact with the end faces of several scrapers (2).

4. The mechanical sludge scraping device with adjustable gap according to claim 3, characterized in that, The push frame (5-7) has a slot (5-8) on its side end face, and another mounting frame (5-5) is provided with an electric push rod (5-9). The output end of the electric push rod (5-9) is provided with a locking block (5-10), and one end of the locking block (5-10) is inserted into the slot (5-8).

5. The mechanical sludge scraping device with adjustable gap according to claim 1, characterized in that, The fixing component (6) includes several connecting posts (6-1), which are fixed around the opposite end faces of the inner cover (3). One end of the connecting post (6-1) is fixedly connected to the annular frame (4), and several fixing holes (6-2) are provided on the surface of the annular frame (4).

6. The mechanical sludge scraping device with adjustable gap according to claim 1, characterized in that, The inner cover (3) has several sets of support strips (7) arranged around its surface, and the support strips (7) are attached to the two sides of the scraper (2).

7. The mechanical sludge scraping device with adjustable gap according to claim 4, characterized in that, The card slot (5-8) and the card block (5-10) have polygonal cross-sections.

8. The mechanical sludge scraping device with adjustable gap according to claim 3, characterized in that, The push frame (5-7) has a cross-shaped structure. Several ends of the push frame (5-7) are bent in the same direction. Several bent parts of the push frame (5-7) slide and fit against the end face of the corresponding scraper (2).

9. A mechanical sludge scraping device with adjustable gap according to claim 2, characterized in that, The movable block (5-3) has an I-shaped cross-section, and both ends of the movable block (5-3) passing through the movable hole (5-2) slide against the surfaces on both sides of the connecting frame (5-1).

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