Flotation froth scraping device of flotation machine

Abstract

The utility model relates to the technical field of coal mine processing equipment, in particular to a flotation froth scraping device of a flotation machine, which is mounted on one side of the flotation machine, is driven by a driving device to rotate and comprises a shaft rod connected with the driving device, and a scraper unit is arranged on the shaft rod. Wherein the scraper blade unit comprises two symmetrically distributed scraper blades and a telescopic assembly, the telescopic assembly is connected between the scraper blades and the shaft rod, the distance between the two scraper blades is adjusted through the telescopic assembly, and therefore the effective scraping range of the scraper blade during rotation is changed. In actual operation, the distance between the two scraping plates is adjusted according to requirements, the foam removing thickness is adjusted to adapt to different conditions, the applicability is improved, in addition, the scraping plates are of detachable connecting structure design, and rapid replacement and cleaning are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine processing equipment, in particular to a flotation foam scraping device for a flotation machine. Background Art

[0002] When washing coal, various coal washing methods need to be used according to (the particle size, density, and surface properties of raw coal). For the separation of fine coal particles with a particle size less than 0.5 mm, the flotation coal washing method should be selected. A flotation machine is short for a flotation separator, referring to the mechanical equipment that completes the flotation process. In a flotation machine, after the pulp is treated with reagents, bubbles are generated by stirring and aeration, so that hydrophobic coal particles and ore particles selectively adhere to the bubbles; they float to the surface of the pulp and are scraped out to form a foam product, and hydrophilic minerals and water remain in the pulp to achieve the purpose of separating coal from gangue and mineral processing.

[0003] In a flotation machine, generally, a rotary scraper structure is used to scrape out the foam in the flotation separation chamber. For example, a coal slurry flotation device for coal washing and its use method disclosed in Chinese Patent Publication No. "CN114210467B".

[0004] However, in the existing scraper structure of the flotation machine, it is generally directly fixed on the rotating shaft through bolt parts. Since the effective width between the scraper parts is fixed, the thickness of the foam removed is also fixed. During the actual operation process, it is impossible to change the scraping thickness according to actual needs. Therefore, there are still certain limitations. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the disadvantages in the existing technology that it is impossible to change the foam scraping thickness according to actual needs, and to propose a flotation foam scraping device for a flotation machine.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] Design a flotation foam scraping device for a flotation machine, which is installed on one side or both sides of the flotation machine and is driven to rotate by a driving device. The device includes a shaft rod connected to the driving device, and a scraper unit is arranged on the shaft rod;

[0008] Among them, the scraper unit includes two symmetrically distributed scrapers and a telescopic assembly. The telescopic assembly is connected between the scraper and the shaft rod, and the scraper is detachably connected to the telescopic assembly.

[0009] Furthermore, the telescopic assembly includes a fixed sleeve and a sliding sleeve. Connecting rods are pin-connected on both sides of the fixed sleeve and the sliding sleeve, and the other ends of the connecting rods are rotated through connecting pieces.

[0010] Further, threaded holes and waist slots are respectively formed on the outer side of the shaft rod. The fixing sleeve is fastened to the threaded hole through a locking member, and the sliding sleeve slides in the waist slot through a snap structure and is locked.

[0011] Further, the snap structure includes a positioning rod inserted on the sliding sleeve. The positioning rod extends to the outside of the sliding sleeve and is fixed with a sliding block. The sliding block is adapted to the waist slot. A spring is placed between the sliding block and the sliding sleeve. Among them, positioning holes adapted to the insertion of the positioning rod are spaced apart on the inner side of the waist slot.

[0012] Further, a notch is formed at the end of the connecting rod, and the scraper is installed in the notch.

[0013] Further, the connecting member includes a T-shaped rod inserted on the connecting rod and passing through the scraper. A positioning glass bead is embedded on the outer side of the bottom of the T-shaped rod. Among them, the positioning glass bead abuts against the lower side of the connecting rod.

[0014] A flotation foam scraping device of a flotation machine proposed by the present utility model has the beneficial effects that: the present utility model realizes the adjustment of the distance between two scrapers through a telescopic assembly, thereby changing the effective scraping range during its rotation. In actual operation, the distance between the two scrapers is adjusted according to requirements to realize the adjustment of the foam removal thickness to adapt to different situations and improve applicability. In addition, the scraper is designed with a detachable connection structure, which is convenient for quick replacement and cleaning. Description of the Drawings

[0015] Figure 1 is the installation structure schematic diagram of the present utility model;

[0016] Figure 2 is the three-dimensional structure schematic diagram of the present utility model;

[0017] Figure 3 is the telescopic assembly structure schematic diagram of the present utility model;

[0018] Figure 4 is the snap structure schematic diagram of the present utility model.

[0019] In the figure: 1, flotation machine; 2, driving device; 3, shaft rod; 31, threaded hole; 32, waist slot; 33, locking member; 4, scraper unit; 41, scraper; 42, telescopic assembly; 421, fixing sleeve; 422, sliding sleeve; 423, connecting rod; 5, connecting member; 51, T-shaped rod; 52, positioning glass bead; 6, snap structure; 61, positioning rod; 62, sliding block; 63, spring; 64, positioning hole. Detailed Embodiments

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figures 1-4 An embodiment of the utility model discloses a flotation froth scraper device for a flotation machine, which is installed on one side or both sides of a flotation machine 1 and driven to rotate by a driving device 2. Figure 1 As shown, the driving device 2 described in this embodiment is a motor, which is installed on the flotation machine 1 and is driven by the shaft 3 through a pulley and a belt. Of course, the specific structure and working principle of the flotation machine 1 are prior arts that can be known to technicians in the relevant field without any technical knowledge, so they are not described in detail here. In addition, two sets of devices can be used to defoam both sides of the flotation machine 1 respectively;

[0022] The device comprises a shaft 3 connected to the driving device 2, on which a scraper unit 4 is arranged. Preferably, two scraper units 4 are arranged in this embodiment to adapt to two flotation tanks;

[0023] The scraper unit 4 includes two symmetrically distributed scrapers 41 and a telescopic assembly 42 . The telescopic assembly 42 is connected between the scraper 41 and the shaft 3 . The scraper 41 and the telescopic assembly 42 are detachably connected.

[0024] In some embodiments, the telescopic assembly 42 of the present invention includes a fixed sleeve 421 and a sliding sleeve 422 , and connecting rods 423 are pinned on both sides of the fixed sleeve 421 and the sliding sleeve 422 , and the other end of the connecting rod 423 rotates through a connecting member 5 .

[0025] Specifically, a threaded hole 31 and a waist groove 32 are respectively opened on the outer side of the shaft rod 3, and the fixing sleeve 421 is fastened to the threaded hole 31 through a locking member 33. The locking member 33 described in this embodiment is preferably configured as a bolt, and the fixing sleeve 421 is fixed to the outer side of the shaft rod 3 by the bolt to ensure that the circumferential position of the scraper 41 is fixed;

[0026] In addition, the sliding sleeve 422 slides in the waist groove 32 and is locked through the snap structure 6, that is, the sliding sleeve 422 described in this embodiment can slide, that is, the extension length of the scraper 41 can be changed by adjusting the position of the sliding sleeve 422, so that the scraping depth of the scraper 41 in the flotation tank sorting chamber can be adjusted, thereby realizing the adjustment of the thickness of the foam scraping material.

[0027] On the basis of the above-mentioned embodiment, the snap-fit ​​structure 6 in this embodiment includes a positioning rod 61 inserted into the sliding sleeve 422, and the positioning rod 61 extends to the outside of the sliding sleeve 422 and is fixed with a sliding block 62, and the sliding block 62 is adapted to the waist groove 32, and a spring 63 is placed between the sliding block 62 and the sliding sleeve 422, wherein the inner side of the waist groove 32 is spaced apart with positioning holes 64 which are inserted and adapted to the positioning rod 61.

[0028] It should be specifically noted that the sliding block 62 in this embodiment is also fixed to the positioning rod 61 by bolts. Secondly, the thickness of the sliding block 62 is less than the depth of the waist groove 32 to ensure that it has a certain upward sliding space.

[0029] During specific operation, the driving device 2 drives the shaft 3 to rotate, so as to drive the scraper 41 to scrape the foam in the flotation tank. In the actual working process, the positioning rod 61 can be pulled out of the positioning hole 64, so that the position of the sliding sleeve 422 can be adjusted. When the sliding sleeve 422 slides, the scrapers 41 on both sides will be pulled by the sliding sleeve 422 to move, so that the effective width between the two scrapers 41 can be changed to adjust the thickness of the foam removal, thereby further optimizing the applicability of the foam removal in the actual operation process.

[0030] Preferably, in this embodiment, a notch is provided at the end of the connecting rod 423, and the scraper 41 is installed in the notch.

[0031] Furthermore, the connecting member 5 in this embodiment includes a T-bar 51 inserted into the connecting rod 423 and passing through the scraper 41, and a positioning glass bead 52 is embedded on the outer side of the bottom of the T-bar 51, wherein the positioning glass bead 52 is stopped on the lower side of the connecting rod 423. The structure of the positioning glass bead 52 is prior art and will not be described in detail here. When the scraper 41 needs to be disassembled, replaced or cleaned, the telescopic end of the positioning glass bead 52 can be pressed to retract it. At this time, the T-bar 51 can be pulled upward to separate the scraper 41 from the connecting rod 423, thereby completing the disassembly of the scraper 41.

[0032] In summary, the utility model adjusts the distance between the two scrapers 41 through the telescopic component 42, thereby changing the effective scraping range when it rotates. In actual operation, the distance between the two scrapers 41 is adjusted according to needs to adjust the thickness of foam removal to adapt to different situations and improve applicability. In addition, the scraper 41 adopts a detachable connection structure design, which is convenient for quick replacement and cleaning.

[0033] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A flotation foam scraping device for a flotation machine, which is installed on one side or both sides of the flotation machine (1) and is driven to rotate by a driving device (2). The device includes a shaft rod (3) connected to the driving device (2), and is characterized in that: A scraping unit (4) is provided on the shaft rod (3); Wherein, the scraping unit (4) includes two symmetrically distributed scrapers (41) and a telescopic assembly (42), the telescopic assembly (42) is connected between the scraper (41) and the shaft rod (3), and the scraper (41) is detachably connected to the telescopic assembly (42).

2. The flotation foam scraping device of a flotation machine according to claim 1, characterized in that: The telescopic assembly (42) includes a fixed sleeve (421) and a sliding sleeve (422), connecting rods (423) are pin-connected on both sides of the fixed sleeve (421) and the sliding sleeve (422), and the other end of the connecting rod (423) rotates through a connecting member (5).

3. The flotation foam scraping device of a flotation machine according to claim 2, characterized in that: Threaded holes (31) and waist slots (32) are respectively formed on the outer side of the shaft rod (3), the fixed sleeve (421) is fastened to the threaded hole (31) through a locking member (33), and the sliding sleeve (422) slides in the waist slot (32) through a snap structure (6) and is locked.

4. A flotation foam scraping device for a flotation machine according to claim 3, characterized in that: The snap structure (6) includes a positioning rod (61) inserted on the sliding sleeve (422), a sliding block (62) is fixed on the outer side of the positioning rod (61) extending to the outside of the sliding sleeve (422), the sliding block (62) is adapted to the waist slot (32), and a spring (63) is placed between the sliding block (62) and the sliding sleeve (422). Wherein, positioning holes (64) adapted to the insertion of the positioning rod (61) are spaced apart on the inner side of the waist slot (32).

5. The flotation foam scraping device of a flotation machine according to claim 2, characterized in that: A notch is formed at the end of the connecting rod (423), and the scraper (41) is installed in the notch.

6. The flotation foam scraping device of a flotation machine according to claim 5, characterized in that: The connecting member (5) includes a T-shaped rod (51) inserted on the connecting rod (423) and passing through the scraper (41), and a positioning bead (52) is embedded on the outer side of the bottom of the T-shaped rod (51). Wherein, the positioning bead (52) abuts against the lower side surface of the connecting rod (423).

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