An adjustable skimming device for a floatation machine

Abstract

The utility model discloses an adjustable slag scraping device of air flotation machine belongs to air flotation machine slag scraping equipment technical field, including installation mainboard, is provided with main drive mechanism on installation mainboard, still transmission connection has a plurality of vice drive mechanism on both sides drive chain, a plurality of vice drive mechanism equidistance setting along drive chain transmission direction, a plurality of scraper assemblies are detachably connected between two drive chains, a plurality of scraper assemblies are detachably connected between two drive chains, realize scraper assembly along water surface stable reciprocating motion, improved the problem that traditional fixed type scraper movement flexibility is insufficient, through make scraper assembly even along long stroke reciprocation, can keep track stable, reduce traditional fixed scraper due to lack of multi -point guide and auxiliary support, scraper appears deviation or uneven stress in the process of operation, lead to the phenomenon that the dross is not scraped completely, improved the uniformity and continuity of dross push.

Description

Technical Field

[0001] This utility model belongs to the technical field of slag scraping equipment for air flotation machines, specifically an adjustable slag scraping device for air flotation machines. Background Technology

[0002] An air flotation (AF) machine is a device that uses small or microbubbles to float impurities in water to the surface. When treating fine particles in water with a specific gravity close to that of water, these particles are difficult to separate effectively using conventional sedimentation methods due to their own weight. Therefore, AF machines are often used. During operation, the water to be treated enters the AF machine, and the introduction of gas creates a large number of microbubbles. These bubbles adhere to flocculent particles or suspended solids in the water, reducing their specific gravity and causing them to float to the surface, forming a scum layer. This achieves rapid and efficient solid-liquid separation. Subsequently, a scum scraper collects and removes the scum, thus removing suspended particles from the water.

[0003] Traditional fixed scraper devices are mostly driven by a single chain or a single sprocket. The scraper moves back and forth along a fixed trajectory. Due to the lack of multi-point guidance and auxiliary support, the scraper is prone to deviation or uneven force during operation, resulting in incomplete scraping of scum. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable slag scraping device for an air flotation machine, so as to solve at least one aspect of the problems and defects mentioned in the background art.

[0005] An adjustable slag scraping device for an air flotation machine is provided, including a mounting main board. A main drive mechanism is provided on the mounting main board. Several auxiliary drive mechanisms are connected to the upper two sides of the main drive mechanism through drive chains. Several scraper assemblies are provided on the drive chains. Several scraper assemblies are detachably connected between two drive chains.

[0006] Furthermore, the main drive mechanism includes a geared motor with a drive shaft on it. Drive sprockets are fixedly connected to both sides of the upper part of the drive shaft. Several auxiliary drive mechanisms are also connected to the drive chains on both sides. The several auxiliary drive mechanisms are equidistantly arranged along the transmission direction of the drive chains. The drive chains are connected to the auxiliary drive mechanisms.

[0007] Furthermore, the auxiliary drive mechanism includes two bearing seats, and a redirecting shaft is rotatably connected between the two bearing seats. Redirecting sprockets are fixedly connected to both sides of the upper part of the redirecting shaft, and a drive chain is connected to each of the two redirecting sprockets. A scraper assembly is provided on each of the drive chains.

[0008] Furthermore, the bearing housing is provided with clamping seats on both sides, the clamping seats are fixedly connected to the mounting plate, and the clamping seats are rotatably connected with clamping bolts.

[0009] Furthermore, a sealing end plate is provided between the mounting motherboard and the bearing housing.

[0010] Furthermore, the scraper assembly includes two connecting plates, which are fixedly connected to the drive chains on both sides. A scraper seat is provided between the two connecting plates, and a scraper body is provided on the scraper seat.

[0011] Furthermore, the connecting plate is provided with connecting holes.

[0012] Furthermore, the scraper seat is provided with an installation groove, and a scraper body is detachably connected in the installation groove.

[0013] Furthermore, several U-shaped guide grooves are provided on one side of the upper part of the scraper body.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The reciprocating scum scraping device provided in this application achieves smooth reciprocating motion of the scraper assembly along the water surface by synchronously driving the auxiliary drive mechanism and scraper assembly with a double chain. This improves the problem of insufficient motion flexibility of traditional fixed scrapers. By enabling the scraper assembly to maintain a stable trajectory even when reciprocating along a long stroke, it reduces the phenomenon of incomplete scum scraping caused by the lack of multi-point guidance and auxiliary support in traditional fixed scrapers, which leads to scraping deviation or uneven force during operation. This improves the uniformity and continuity of scum pushing. Attached Figure Description

[0015] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 A schematic diagram of the overall structure of an adjustable slag scraping device for an air flotation machine; Figure 2 A schematic diagram of the main drive mechanism provided by this utility model; Figure 3 A schematic diagram of the auxiliary drive mechanism provided by this utility model; Figure 4 This is a schematic diagram of the scraper assembly structure provided by this utility model.

[0017] In the diagram: 1. Main board mounting; 2. Main drive mechanism; 21. Gear motor; 22. Drive shaft; 23. Drive sprocket; 3. Drive chain; 4. Secondary drive mechanism; 41. Bearing housing; 42. Idler shaft; 43. Idler sprocket; 44. Tightening seat; 45. Tightening bolt; 5. Scraper assembly; 51. Connecting plate; 511. Connecting hole; 52. Scraper seat; 521. Mounting groove; 53. Scraper body; 531. U-shaped guide channel; 54. Polyurethane buffer block; 6. Sealing end plate. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional 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.

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] Please see Figure 1-4 As shown in the present invention, an adjustable slag scraping device for an air flotation machine includes a mounting main board 1, a main drive mechanism 2 is provided on the mounting main board 1, and several auxiliary drive mechanisms 4 are also connected to the drive chains 3 on both sides. The several auxiliary drive mechanisms 4 are equidistantly arranged along the transmission direction of the drive chains 3, and several scraper assemblies 5 are detachably connected between the two drive chains 3. In this invention, the motor in the main drive mechanism 2 outputs torque after reduction, causing the drive sprocket 23 connected to it to rotate, which in turn drives the drive chain 3 to run in a cycle, forming a closed-loop transmission structure. When the drive chain 3 is running, the scraper assembly 5 installed on the drive chain 3 moves forward along the liquid surface of the flotation tank, pushing the suspended solids, foam and sludge floating on the liquid surface to the sludge collection area or sludge discharge port; when the scraper assembly 5 runs to the turning area at the end of the tank, it moves down with the drive chain 3 and returns to the initial position along the return path, completing one reciprocating sludge scraping cycle; On the one hand, the dual drive chain 3 and the auxiliary drive mechanism 4 form multi-point guidance and auxiliary support, making the scraper assembly 5 accurately positioned and running smoothly during reciprocating motion. This avoids the problems of deviation, vibration, or uneven force that are easily generated when the scraper is driven by a traditional single chain or single sprocket. On the other hand, the scraper assembly 5 and the drive chain 3 are detachably connected. Combined with the modular design of the scraper seat 52 and the scraper plate body 53 and the guide channel structure, the uniform pushing and continuous scraping of scum are achieved, improving the efficiency of solid-liquid separation. By synchronously driving the auxiliary drive mechanism 4 and the scraper assembly 5 with the dual chains, the scraper assembly 5 is able to move smoothly back and forth along the water surface. This improves the problem of insufficient movement flexibility of traditional fixed scrapers. By making the scraper assembly 5 maintain a stable trajectory even when reciprocating along a long stroke, it reduces the phenomenon of deviation or uneven force during operation of the scraper due to the lack of multi-point guidance and auxiliary support in traditional fixed scrapers, which leads to incomplete scraping of scum. This improves the uniformity and continuity of scum pushing.

[0025] In one embodiment, see Figure 1 , Figure 2 and Figure 3 As shown, the main drive mechanism 2 includes a geared motor 21, a drive shaft 22 is provided on the geared motor 21, drive sprockets 23 are fixedly connected to both sides of the upper part of the drive shaft 22, drive chains 3 are connected to both drive sprockets 23, and a secondary drive mechanism 4 is connected to the drive chains 3. When the geared motor 21 is working, it outputs a stable low-speed high-torque rotational torque. Its output shaft is the drive shaft 22. Drive sprockets 23 are fixedly installed at both ends of the drive shaft 22. The drive sprockets 23 are meshed with the drive chain 3. When the geared motor 21 starts, the drive shaft 22 synchronously drives the drive sprockets 23 on both sides to rotate, so that the drive chains 3 on both sides run in a cycle at the same time. Driven by the drive sprocket 23, the drive chain 3 travels along a set trajectory. The auxiliary drive mechanism 4, fixed on the chain, moves with the chain, thereby driving the scraper assembly 5 installed on it to reciprocate along the surface of the flotation tank. Through the continuous operation of this transmission system, the automatic pushing and centralized discharge of scum is achieved.

[0026] In one specific embodiment, such as Figure 1 and Figure 3 As shown, the auxiliary drive mechanism 4 includes two bearing seats 41, and a redirection shaft 42 is rotatably connected between the two bearing seats 41. Redirection sprockets 43 are fixedly connected to both sides of the upper part of the redirection shaft 42. Drive chains 3 are connected to both redirection sprockets 43, and scraper assemblies 5 are provided on both drive chains 43. During operation, the geared motor 21 of the main drive mechanism 2 starts, driving the drive shaft 22 to rotate, which in turn drives the drive sprocket 23 to rotate. The drive sprocket 23 pulls the drive chain 3 to run in a cycle. When the drive chain 3 runs to the redirecting sprocket 43 of the auxiliary drive mechanism 4, the redirecting sprocket rotates freely under the support of the redirecting shaft 42, realizing the reversal of the movement direction of the drive chain 3, so that the drive chain 3 continues to run in a cycle. The scraper assembly 5 on the drive chain 3 completes the scraping and return actions in the cycle, thereby realizing continuous scraping. By synchronously driving the auxiliary drive mechanism 4 and the scraper assembly 5 through the dual drive chains 3, the scraper assembly 5 can move smoothly back and forth along the water surface, which significantly improves the problem of insufficient movement flexibility of traditional fixed scrapers. By making the scraper assembly 5 maintain a stable trajectory even along a long stroke, the vibration and movement deviation problems of traditional fixed scrapers are avoided, and the uniformity and continuity of scum pushing are improved.

[0027] In one embodiment, see Figure 1 and Figure 3 As shown, a clamping seat 44 is also provided on both sides of the bearing housing 41. In one specific embodiment, the clamping seat 44 is fixedly mounted on the mounting plate 1 by bolts. An adjustable top block or threaded pressure plate is provided on the inner side of the clamping seat 44, and the top block abuts against the outer side of the bearing housing 41. By tightening the adjusting screw on the clamping seat 44, an inward pressing force can be applied to the bearing housing 41 to achieve the adjustment of the tightness or looseness of the bearing housing 41. During the operation of the equipment, when the drive chain 3 becomes slightly loose due to tension changes, the adjusting bolt of the clamping seat 44 can be rotated to push the top block to move inward, thereby fine-tuning the position of the bearing housing 41, so that the redirecting shaft 42 returns to the ideal central axis and keeps the tension of the drive chains 3 on both sides consistent.

[0028] In one embodiment, see Figure 1 , Figure 2 and Figure 3 As shown, the top mounting seat 44 is provided with a mounting hole (not shown in the figure), and a top mounting bolt 45 is rotatably connected in the mounting hole; The tensioning seat 44 is provided with a mounting hole, and a tensioning bolt 45 is rotatably connected in the mounting hole. By providing a tensioning bolt 45 on the tensioning seat 44, precise pressure adjustment of the bearing seat 41 can be achieved. When the tensioning bolt 45 rotates, it can push or release the bearing seat 41 axially, thereby changing the lateral position of the redirecting shaft 42 and realizing fine adjustment and alignment of the chain tension.

[0029] In one embodiment, see Figure 1 and Figure 3 As shown, a sealing end plate 6 is also provided between the mounting motherboard 1 and the bearing housing 41.

[0030] A sealing end plate 6 is provided between the mounting main board 1 and the bearing housing 41, mainly used to seal and isolate the mounting area of ​​the auxiliary drive mechanism 4. The design principle of this structure is that by adding a sealing end plate 6 between the connecting surface of the bearing housing 41 and the mounting main board 1, sewage, scum and other impurities can be effectively prevented from entering the bearing mounting cavity, avoiding the bearing of the redirecting shaft 42 from being corroded or impurities entering, resulting in jamming and wear.

[0031] In one embodiment, see Figure 1 and Figure 4 As shown, the connecting plate 51 is provided with connecting holes 511. The main function of the connecting holes 511 on the connecting plate 51 is to realize the fixed connection between the scraper assembly 5 and the drive chain 3. Through the connecting holes 511, bolts, pins or other fasteners can be inserted to reliably fix the connecting plate 51 on the chain links on both sides of the drive chain 3, so that the scraper assembly 5 can reciprocate synchronously with the drive chain 3.

[0032] In one embodiment, see Figure 1 and Figure 4 As shown, the scraper assembly 5 includes two connecting plates 51, which are fixedly connected to the two drive chains 3 on both sides. A scraper seat 52 is provided between the two connecting plates 51, and a scraper body 53 is provided on the scraper seat 52. By fixing the two connecting plates 51 to the drive chains 3 on both sides, the scraper assembly 5 can achieve synchronous transmission with the reciprocating motion of the chains 3. The scraper seat 52 is set between the two connecting plates 51 and serves as the main structure for supporting and installing the scraper body 53, playing a connecting and supporting role. The scraper body 53 is in direct contact with the scum on the liquid surface and moves parallel to the water surface under the drive of the drive chain 3, pushing the scum to the scum discharge end for automatic removal.

[0033] In one embodiment, see Figure 1 and Figure 4 As shown, a mounting groove 521 is provided on the scraper seat 52, and a scraper body 53 is detachably connected in the mounting groove 521; The mounting groove 521 provided on the scraper seat 52 is mainly used to provide a stable mounting position for the scraper body 53, and at the same time realize the detachability of the scraper body 53. The detachable connection design allows the scraper body 53 to be quickly replaced without disassembling the entire scraper assembly 5 when it is worn, damaged or needs to be replaced. It is only necessary to remove the scraper body 53 from the mounting groove 521.

[0034] In one embodiment, see Figure 1 and Figure 4 As shown, several U-shaped guide channels 531 are also provided on one side of the upper part of the scraper plate 53. When the scraper plate 53 moves back and forth on the liquid surface, the liquid is prone to disturbance or backflow on the plate surface, which may cause the scum to slide down along the return direction of the scraper or be incompletely pushed. The U-shaped guide channels 531 form micro-channels on the plate, so that the liquid is guided to flow along the U-shaped guide channels 531 on the plate surface, and at the same time guides the scum to move along the scraping direction, thereby ensuring the continuity and uniformity of the scraping action. In addition, the U-shaped guide channels 531 can also reduce the resistance between the scraper plate 53 and the liquid to a certain extent, making the reciprocating operation of the scraper plate 53 more stable, while reducing the energy consumption of the equipment.

[0035] In one embodiment, see Figure 1 and Figure 4 As shown, polyurethane buffer blocks 54 are also provided on both sides of the upper part of the scraper body 53. The drive chain 3 may cause the scraper to slightly deviate laterally (deviate from the preset running trajectory) due to uneven tension. The polyurethane buffer block 54 protrudes 15-25mm from the side of the scraper. When the scraper body 53 deviates, the buffer block will first contact the side wall of the pool or the guide rail, and then slightly push the scraper back through the elastic reaction force of polyurethane to correct the deviation and prevent the scraper from getting stuck in the gap of the pool, thus ensuring smooth operation.

[0036] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. An adjustable slag scraping device for an air flotation machine, comprising a main board (1), characterized in that, The mounting motherboard (1) is provided with a main drive mechanism (2), and several auxiliary drive mechanisms (4) are also connected to the drive chains (3) on both sides. The several auxiliary drive mechanisms (4) are equidistantly arranged along the transmission direction of the drive chains (3), and several scraper assemblies (5) are detachably connected between the two drive chains (3).

2. The adjustable slag scraping device for an air flotation machine according to claim 1, characterized in that, The main drive mechanism (2) includes a geared motor (21), a drive shaft (22) is provided on the geared motor (21), drive sprockets (23) are fixedly connected to both sides of the upper part of the drive shaft (22), drive chains (3) are connected to both sides of the drive sprockets (23), and a secondary drive mechanism (4) is connected to the drive chains (3).

3. The adjustable slag scraping device for an air flotation machine according to claim 2, characterized in that, The secondary drive mechanism (4) includes two bearing seats (41), and a redirection shaft (42) is rotatably connected between the two bearing seats (41). Redirection sprockets (43) are fixedly connected to both sides of the upper part of the redirection shaft (42). A drive chain (3) is connected to both sides of the redirection sprockets (43), and a scraper assembly (5) is provided on each drive chain (3).

4. The adjustable slag scraping device for an air flotation machine according to claim 3, characterized in that, The bearing housing (41) is also provided with a top clamping seat (44) on both sides. The top clamping seat (44) is fixedly connected to the mounting main board (1). The top clamping seat (44) is rotatably connected with a top clamping bolt (45).

5. The adjustable slag scraping device for an air flotation machine according to claim 4, characterized in that, A sealing end plate (6) is also provided between the mounting motherboard (1) and the bearing seat (41).

6. The adjustable slag scraping device for an air flotation machine according to claim 1, characterized in that, The scraper assembly (5) includes two connecting plates (51), which are fixedly connected to the two drive chains (3) on both sides. A scraper seat (52) is provided between the two connecting plates (51), and a scraper body (53) is provided on the scraper seat (52).

7. The adjustable slag scraping device for an air flotation machine according to claim 6, characterized in that, The connecting plate (51) is provided with a connecting hole (511).

8. The adjustable slag scraping device for an air flotation machine according to claim 6, characterized in that, The scraper seat (52) is provided with an installation groove (521), and a scraper body (53) is detachably connected in the installation groove (521).

9. An adjustable slag scraping device for an air flotation machine according to claim 6, characterized in that, Several U-shaped guide grooves (531) are also provided on one side of the upper part of the scraper body (53).

10. An adjustable slag scraping device for an air flotation machine according to claim 6, characterized in that, Polyurethane buffer blocks (54) are also provided on both sides of the upper part of the scraper body (53).

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