A non-metal chain plate type mud scraper with a scraper plate

Abstract

The utility model relates to the field of plate type mud scraper, specifically disclose a kind of scraper for non-metal chain plate type mud scraper, including scraper body, the front end of scraper body is wedge structure, and surface is equipped with multiple longitudinal inclinedly arranged flow guide groove;The bottom of scraper body is provided with detachable elastic scraper blade assembly, the elastic scraper blade assembly includes fixed plate, the bottom of fixed plate is fixedly connected with multiple elastic scraper blade that is arranged in sawtooth shape and has, the both sides of scraper body are fixedly connected with clamping plate, the side of the clamping plate away from scraper body is provided with side plate, the outside wall of side plate is equipped with clamping groove, the device has the effect that scraper is conveniently installed, and reduce fluid resistance, improve sludge convergence efficiency, effectively prevent lateral leakage, and can adapt to uneven surface of pool bottom, effectively improve mud cleaning degree compared with traditional rigid scraper.

Description

Technical Field

[0001] This utility model relates to the field of plate scrapers, and specifically discloses a scraper for a non-metallic chain plate scraper. Background Technology

[0002] In industrial fields such as wastewater treatment, chemical industry, and mining, chain plate scrapers are one of the core equipment for achieving solid-liquid separation. Their scraper components directly determine the scraping efficiency, equipment reliability, and maintenance costs.

[0003] Traditional sludge scrapers mostly use bolts to fix the scrapers. During installation, tools are used to install the scrapers one by one, which is time-consuming and labor-intensive. When replacing them, the bolts need to be removed, making the installation cumbersome. In addition, the front end of traditional scrapers is mostly flat or right-angled, which results in high initial resistance when cutting into the sludge layer and easily forms eddies on both sides, leading to sludge leakage. The sludge collection capacity is poor, and the sludge tends to accumulate on both sides of the scraper, requiring repeated scraping to collect it. Furthermore, traditional rigid scrapers (such as those made of stainless steel) cannot adapt to the unevenness of the pool bottom, resulting in blind spots in scraping and affecting the cleanliness of the scraped sludge. Utility Model Content

[0004] This utility model proposes a non-metallic chain plate type scraper for a sludge scraper. This device has the effect of convenient installation of the scraper, reduces fluid resistance, improves sludge collection efficiency, effectively prevents lateral leakage, and can adapt to uneven surfaces at the bottom of the pool. Compared with traditional rigid scrapers, it effectively improves the cleanliness of sludge scraping.

[0005] This utility model is implemented as follows: a scraper for a non-metallic chain plate scraper includes a scraper body, the front end of which has a wedge-shaped structure and multiple longitudinally inclined guide grooves are formed on the surface.

[0006] The bottom of the scraper body is provided with a detachable elastic scraper assembly, the elastic scraper assembly includes a fixing plate, and the bottom of the fixing plate is fixedly connected with a plurality of serrated and elastic scrapers.

[0007] Both sides of the scraper body are fixedly connected with a clamping plate. A side plate is provided on the side of the clamping plate away from the scraper body. A slot is opened on the outer side wall of the side plate. The clamping plate is embedded in the slot to realize the sliding connection between the side plate and the scraper body.

[0008] The side plate is fixedly connected to the chain link via a mounting plate.

[0009] As a preferred embodiment of the non-metallic chain plate type scraper of this utility model, the plurality of the guide grooves are distributed symmetrically in mirror with the central axis of the scraper body as a reference, and are gradually arranged densely from both sides of the scraper body towards the center.

[0010] As a preferred embodiment of the non-metallic chain plate type sludge scraper of this utility model, a connecting seat is fixedly connected to the bottom of the scraper body, and a threaded hole is opened at the front end of the connecting seat.

[0011] The fixing plate is detachably connected to the threaded hole of the connecting seat via bolts.

[0012] As a preferred embodiment of the non-metallic chain-plate type scraper of this utility model, both the card plate and the card slot have a dovetail-shaped cross-section.

[0013] As a preferred embodiment of the non-metallic chain plate type scraper of this utility model, the card plate has symmetrically distributed mounting grooves on the side away from the scraper body, a spring is fixedly connected in the mounting groove, and a limit post is fixedly connected to the other end of the spring, and the limit post slides in cooperation with the mounting groove.

[0014] The outer side wall of the side plate is provided with a limiting hole that is adapted to the limiting post.

[0015] As a preferred embodiment of the non-metallic chain plate type scraper of this utility model, the end of the limiting post is a hemispherical structure, and the depth of the limiting hole is 1 / 3 to 1 / 2 of the length of the limiting post.

[0016] As a preferred embodiment of the non-metallic chain plate type scraper of this utility model, the scraper body is made of ultra-high molecular weight polyethylene.

[0017] The beneficial effects of this utility model are:

[0018] The card plate and slots limit the movement of the card plate, while the spring and limiting post work together to facilitate the installation of the scraper body.

[0019] The combination of the wedge-shaped leading edge and the guide channel reduces fluid resistance and effectively reduces energy consumption. The mirror-symmetric guide channel layout forms a symmetrical flow field, eliminating lateral flow resistance. The dense guide channels in the middle utilize the Venturi effect to increase sludge flow velocity, form negative pressure adsorption, improve sludge aggregation efficiency, and effectively prevent lateral leakage.

[0020] 3. The flexible scraper blades make flexible contact with the bottom of the pool, adapting to uneven surfaces and effectively improving the cleanliness of the sludge scraping compared to traditional rigid scrapers. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0022] Figure 1 This is a front sectional view of a scraper for a non-metallic chain-plate sludge scraper according to the present invention.

[0023] Figure 2 This is a structural diagram of the scraper body of this utility model.

[0024] Figure 3 This is a structural diagram of the connecting plate and scraper of this utility model.

[0025] Figure 4 This is a top sectional view of the card plate of this utility model.

[0026] Figure 5 This is a top sectional view of the side plate of this utility model.

[0027] The markings in the diagram are: 1. Scraper body; 101. Guide channel; 2. Fixing plate; 201. Scraper blade; 3. Clamping plate; 301. Mounting groove; 302. Spring; 303. Limiting post; 4. Side plate; 401. Clamping groove; 402. Limiting hole; 5. Mounting plate; 6. Connecting seat. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0029] Please see Figure 1-5 A non-metallic chain plate type scraper for a sludge scraper includes a scraper body 1. The front end of the scraper body 1 has a wedge-shaped structure, and multiple longitudinally inclined guide grooves 101 are opened on the surface.

[0030] The bottom of the scraper body 1 is provided with a detachable elastic scraper assembly. The elastic scraper assembly includes a fixing plate 2. The bottom of the fixing plate 2 is fixedly connected with a plurality of serrated and elastic scrapers 201.

[0031] Both sides of the scraper body 1 are fixedly connected with a clamping plate 3. A side plate 4 is provided on the side of the clamping plate 3 away from the scraper body 1. A groove 401 is opened on the outer side wall of the side plate 4. The clamping plate 3 is embedded in the groove 401 to realize the sliding connection between the side plate 4 and the scraper body 1.

[0032] Side plate 4 is fixedly connected to chain links via mounting plate 5.

[0033] In this embodiment: the clamping plates 3 on both sides of the scraper body 1 are respectively inserted into the corresponding clamping slots 401, which can limit the clamping plates 3. At the same time, due to the rebound force of the spring 302, the limiting post 303 can be pushed to move into the corresponding limiting hole 402, which can fix the position of the clamping plate 3, so as to facilitate the installation of the scraper body 1. This allows the scraper body 1 to reciprocate linearly at the bottom of the sewage treatment tank with the chain, thereby achieving the function of scraping the sludge at the bottom of the tank. The wedge-shaped design at the front end of the scraper body 1 can reduce the fluid resistance during movement, making it easier to cut into the sludge layer deposited at the bottom of the tank, reducing the resistance of the scraper's movement, and guiding the sludge to converge towards the center of the scraper. The elastic scraper blade 201 is made of elastic material (such as rubber or polyurethane), which has flexible deformation capability and can closely fit the irregular surface of the tank bottom (such as uneven or compacted sludge layer), scraping off the thin layer of sludge and sticky substances attached to the bottom of the tank.

[0034] When the scraper body 1 needs to be replaced, the limiting post 303 can be squeezed to compress the spring 302, causing the limiting post 303 to exit the limiting hole 402, separating the side plate 4 from the clamping plate 3, which makes it easy to replace the scraper body 1.

[0035] As a technical optimization of this utility model, multiple guide grooves 101 are distributed symmetrically in mirror image with the central axis of the scraper body 1 as the reference, and are gradually arranged densely from both sides of the scraper body 1 towards the center.

[0036] In this embodiment: the mirror-symmetric guide channel 101 forms a symmetrical flow field when the scraper moves, avoiding lateral resistance caused by flow deviation. The dense guide channels 101 in the middle (spacing 0.5-2mm) form a local velocity acceleration zone. By utilizing the Venturi effect, the fluid velocity in the middle is increased by 40%, generating a negative pressure zone, which adsorbs the sludge on both sides and concentrates it in the middle.

[0037] As a technical optimization of this utility model, a connecting seat 6 is fixedly connected to the bottom of the scraper body 1, and a threaded hole is opened at the front end of the connecting seat 6.

[0038] The fixing plate 2 is detachably connected to the threaded hole of the connecting seat 6 by bolts.

[0039] In this embodiment: the connecting seat 6 (thickness 8-12mm) is made of high-strength engineering plastic (such as PEEK), and the elastic scraper assembly is fixed by double-row staggered bolts (50mm spacing). When the scraper 201 fails due to long-term friction and wear, the entire elastic scraper assembly can be replaced simply by removing the bolts, without having to remove the scraper body 1 or the side plate 4, which significantly shortens the maintenance time.

[0040] As a technical optimization of this utility model, both the card plate 3 and the card slot 401 have a dovetail-shaped cross-section.

[0041] In this embodiment, the dovetail-shaped cross-section of the card plate 3 cooperates with the card slot 401 to limit the position of the card plate 3. During installation, the dovetail-shaped structure guides the card plate 3 to automatically slide into the card slot 401, simplifying the assembly process.

[0042] As a technical optimization of this utility model, the card plate 3 has symmetrically distributed mounting grooves 301 on the side away from the scraper body 1. A spring 302 is fixedly connected in the mounting groove 301, and a limit post 303 is fixedly connected to the other end of the spring 302. The limit post 303 slides with the mounting groove 301.

[0043] The outer side wall of the side plate 4 is provided with a limiting hole 402 that is compatible with the limiting post 303.

[0044] In this embodiment: the card plate 3 is slid into the card slot 401. At this time, the spring 302, which is in a compressed state, pushes the limiting post 303 into the limiting hole 402 to position the side plate 4 and the card plate 3, so as to facilitate the installation of the card plate 3.

[0045] As a technical optimization of this utility model, the end of the limiting post 303 is a hemispherical structure, and the depth of the limiting hole 402 is 1 / 3 to 1 / 2 of the length of the limiting post 303.

[0046] In this embodiment, the depth of the limiting hole 402 is half the length of the limiting post 303. During disassembly, only a 50N force needs to be applied on one side to compress the limiting post 303 and the spring 302 to separate the card plate 3 from the side plate 4.

[0047] As a technical optimization of this utility model, the scraper body 1 is made of ultra-high molecular weight polyethylene.

[0048] In this embodiment: Ultra-high molecular weight polyethylene (UHMWPE) has high wear resistance, which can reduce frictional wear with sludge and the bottom of the tank, extend service life, operate smoothly without additional lubrication, reduce maintenance costs, and has impact resistance, which can absorb the impact force during the sludge scraping process and prevent brittle fracture.

[0049] The working principle and usage process of this utility model are as follows: When in use, the device is fixedly connected to the chain link through the mounting plate 5 of the side plate 4. Then, the clamping plates 3 on both sides of the scraper body 1 are respectively clamped into the corresponding clamping slots 401. At the same time, due to the rebound force of the spring 302, the limiting post 303 can be pushed to move into the corresponding limiting hole 402, which can fix the position of the clamping plate 3, so that the scraper body 1 can be fixed between the two side plates 4. This allows the scraper body 1 to reciprocate linearly with the chain at the bottom of the sewage treatment tank, thereby achieving the function of scraping the sludge at the bottom of the tank. The chain drive is controlled by the transmission system of the sludge scraper (such as sprockets and motors). When the scraper moves with the chain, its front end cuts into the sludge layer to complete the sludge scraping operation.

[0050] The wedge-shaped design at the front end of the scraper body 1 reduces fluid resistance during movement, making it easier to cut into the sludge layer deposited at the bottom of the pool, reducing the scraper's travel resistance, and guiding the sludge to converge towards the center of the scraper. The elastic scraper blade 201 is made of elastic material (such as rubber or polyurethane) and has flexible deformation capability, which can closely fit the irregular surface of the pool bottom (such as uneven or compacted sludge layer) to scrape off the thin layer of sludge and sticky substances attached to the bottom of the pool. The fixing plate 2 is fixed to the connecting seat 6 at the bottom of the scraper body 1 by bolts. When the scraper blade 201 is worn, it can be quickly disassembled and replaced, reducing maintenance costs.

[0051] When the scraper body 1 needs to be replaced, the limiting post 303 can be squeezed to compress the spring 302, causing the limiting post 303 to exit the limiting hole 402, separating the side plate 4 from the clamping plate 3, which makes it easy to replace the scraper body 1.

[0052] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model.

[0053] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A non-metallic flight for a flight-type mud scraper, characterized by: It includes a scraper body (1), the front end of which is a wedge-shaped structure and the surface is provided with a plurality of longitudinally inclined guide grooves (101). The bottom of the scraper body (1) is provided with a detachable elastic scraper assembly, the elastic scraper assembly includes a fixing plate (2), and the bottom of the fixing plate (2) is fixedly connected with a plurality of serrated and elastic scrapers (201). Both sides of the scraper body (1) are fixedly connected with a card plate (3). A side plate (4) is provided on the side of the card plate (3) away from the scraper body (1). A slot (401) is provided on the outer side wall of the side plate (4). The card plate (3) is embedded in the slot (401) to realize the sliding connection between the side plate (4) and the scraper body (1). The side plate (4) is fixedly connected to the chain link via the mounting plate (5).

2. A non-metallic flight for a mud scraper according to claim 1, characterized in that: The multiple guide grooves (101) are distributed symmetrically in mirror image with the central axis of the scraper body (1) as the reference, and are arranged densely from both sides of the scraper body (1) toward the center.

3. A non-metallic flight for a mud scraper according to claim 1, characterized in that: The bottom of the scraper body (1) is fixedly connected to a connecting seat (6), and the front end of the connecting seat (6) is provided with a threaded hole. The fixing plate (2) is detachably connected to the threaded hole of the connecting seat (6) by bolts.

4. A non-metallic flight for a mud scraper according to claim 1, characterized in that: The cross-sections of the card plate (3) and the card slot (401) are both dovetail-shaped structures.

5. A non-metallic flight for a mud scraper according to claim 1, characterized in that: The card plate (3) has symmetrically distributed mounting grooves (301) on the side away from the scraper body (1). A spring (302) is fixedly connected in the mounting groove (301). A limit post (303) is fixedly connected to the other end of the spring (302). The limit post (303) slides in cooperation with the mounting groove (301). The outer side wall of the side plate (4) is provided with a limiting hole (402) that is adapted to the limiting post (303).

6. A non-metallic flight for a mud scraper according to claim 5, characterized in that: The end of the limiting post (303) is a hemispherical structure, and the depth of the limiting hole (402) is 1 / 3 to 1 / 2 of the length of the limiting post (303).

7. A non-metallic flight for a mud scraper according to claim 1, characterized in that: The scraper body (1) is made of ultra-high molecular weight polyethylene.

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