Integrated air flotation device for solid-liquid separation

Abstract

The utility model discloses an integrated air floatation device for solid-liquid separation, which comprises a shell and a baffle plate for separating the shell, the baffle plate divides the interior of the shell into an air floatation area and a collection area, two rotating shafts are rotationally erected at the top of the shell and are symmetrically distributed, and the two rotating shafts are arranged in the shell. The outer surface of each rotating shaft is fixedly sleeved with two transmission gears, a transmission chain is assembled between the two transmission gears located on the same side in a transmission mode, a slag scraping plate is arranged in the shell, and the two transmission chains drive the slag scraping plate to move at the same time. According to the air flotation device, scum remaining on the air flotation device can be removed through the scraping unit in the solid-liquid separation process, meanwhile, under the action of the vibration unit, the action effect of the scraping unit can be enhanced, scum which cannot be directly removed in the scraping unit can be removed, and the working efficiency of the air flotation device is improved; the method has great significance in the actual production process.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, and particularly relates to an integrated air flotation device for solid-liquid separation. Background Technique

[0002] An air flotation device is a device commonly used for solid-liquid separation. It uses the buoyancy of bubbles to separate solid particles or oils suspended in a liquid from the liquid. Specifically, it means forming highly dispersed tiny bubbles in water. After adhering to contaminated particulate matter, a three-phase mixed system of water, gas, and particles is formed. Finally, a floc with an apparent density less than that of water floats to the water surface, and a scum layer is scraped off, thereby realizing the process of solid-liquid or liquid-liquid separation. The air flotation device can efficiently remove suspended substances, improve water quality, reduce pollutant emissions, and achieve the purposes of environmental protection and resource recovery.

[0003] However, during the process of scraping the scum by most existing air flotation devices, the scum is extremely likely to adhere to the scraper and is difficult to fall off automatically. The scum adhering to the scraper will enter the water tank again as the scraper moves, affecting the efficiency of solid-liquid separation. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an integrated air flotation device for solid-liquid separation, which can solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An integrated air flotation device for solid-liquid separation, including: a housing, a baffle for partitioning the housing, the baffle divides the interior of the housing into an air flotation area and a collection area, two rotating shafts are rotatably mounted on the top of the housing, and the two rotating shafts are symmetrically distributed. Two transmission gears are fixedly sleeved on the outer surface of each rotating shaft, and a transmission chain is transmission-assembled between the two transmission gears on the same side. A slag scraping plate is arranged inside the housing, and the two transmission chains drive the slag scraping plate to move simultaneously.

[0006] It further includes: a scraping unit for cleaning the scum adhering to the outer surface of the lower part of the slag scraping plate, and the scraping unit is arranged above the collection area;

[0007] A vibration unit for prompting the scraping unit to remove the scum on the surface of the slag scraping plate under vibration conditions, and the vibration unit is arranged between the scraping unit and the housing.

[0008] Preferably, the scraping unit includes a scraper, and the scraper is located above the collection area, and the scraper is distributed parallel to the rotating shaft, an assembly block is fixed on one of the outer chain plates of the two transmission chains, and the two assembly blocks are symmetrically distributed, and a cross bar is fixedly provided at the bottom of the two assembly blocks, and a limit shaft is fixedly assembled inside the cross bar, and the scraper plate is rotatably mounted on the outer surface of the limit shaft, the scraper plate is inclined, and a pulling component is provided between one of the inclined surfaces of the scraper plate and the cross bar, the transmission chain drives the scraper plate to move to the scraper, and under the action of the pulling component, the scraper plate deflects with the limit shaft as the center.

[0009] Preferably, the pulling component includes an extension plate fixedly arranged on the side wall of the cross bar, and a plurality of tension springs equidistantly distributed in a straight line are fixedly arranged between the extension plate and the scraper plate, so that the position between the scraper plate and the cross bar can be deflected by the action of the tension springs.

[0010] Preferably, the vibration unit includes two symmetrically distributed straight grooves opened inside the shell, the two ends of the scraper are respectively slidably mounted inside the two straight grooves, springs are fixedly installed between the two ends of the straight groove and the scraper, two straight grooves extend from the two ends of the scraper, a positioning shaft is placed on the outside of each straight groove, and the positioning shaft is rotatably embedded in the shell, a disc is fixedly mounted on the outer surface of each positioning shaft, and a plurality of arc-shaped toggle blocks equidistantly distributed around the circumference are fixedly arranged on the outer surface of the disc, the arc surface of the arc-shaped toggle block is in active contact with the scraper, the outer surfaces of the two positioning shafts and the two ends of one of the rotating shafts are fixedly mounted with synchronous wheels, and a synchronous belt is installed between the two synchronous wheels on the same side, and the transmission of the synchronous belt is driven by the rotating shaft to rotate the arc-shaped toggle block on the outer surface of the disc, thereby toggling the scraper.

[0011] Preferably, the scraper is in a stationary state, and there is a gap between the disc and the scraper to avoid interference between the scraper and the reciprocating vibrating movement.

[0012] Preferably, an inclined plate is fixedly provided just above the baffle, the inclined plate is inclined upward toward the collection area, and the inclined plate and an end surface of the baffle away from the collection area are flush with each other, and the setting of the inclined plate plays a guiding role for the scum.

[0013] Preferably, a drive motor is fixedly provided on the outside of the shell, and the output end of the drive motor is connected to the end of one of the rotating shafts through a coupling. The drive motor drives the rotating shaft to drive the transmission chain to move, and finally the scraper and the arc-shaped toggle block are operated.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model adopts the designed scraping unit and vibration unit, and can use the scraping unit to remove the scum remaining on the flotation device during the solid-liquid separation process. At the same time, under the action of the vibration unit, the effect of the scraping unit can be enhanced and the scum that cannot be directly removed by the scraping unit can be removed, thereby improving the working efficiency of the flotation device, which is of great significance in the actual production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a side view of the utility model;

[0018] Figure 3 This is a schematic diagram of the scraper plate and chain structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the cross bar and the tension spring of the utility model;

[0020] Figure 5 This is a schematic diagram of the baffle and inclined plate structure of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the toggle block and the synchronous belt of the utility model.

[0022] In the figure: 1. housing; 2. baffle; 3. inclined plate; 4. rotating shaft; 5. transmission gear; 6. transmission chain; 7. assembly block; 8. scraper plate; 9. tension spring; 10. spring; 11. scraper; 12. arc-shaped toggle block; 13. synchronous belt; 14. synchronous wheel; 15. cross bar; 16. limit shaft. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1: Please refer to Figures 1-5An integrated flotation device for solid-liquid separation comprises: a shell 1, a baffle 2 for partitioning the shell 1, the baffle 2 divides the interior of the shell 1 into a flotation area and a collection area, the top rotating frame of the shell 1 is provided with two rotating shafts 4, and the two rotating shafts 4 are symmetrically distributed, the outer surface of each rotating shaft 4 is fixedly sleeved with two transmission gears 5, and a transmission chain 6 is assembled between the two transmission gears 5 on the same side, a scraper plate 8 is arranged inside the shell 1, and the two transmission chains 6 drive the scraper plate 8 to move at the same time.

[0025] It also includes: a scraping unit for cleaning the scum attached to the outer surface of the lower part of the scraper plate 8, and the scraping unit is arranged above the collection area;

[0026] The vibration unit prompts the scraping unit to remove the scum on the surface of the scraping plate 8 under vibration conditions. The vibration unit is arranged between the scraping unit and the housing 1.

[0027] The scraping unit includes a scraper 11, and the scraper 11 is located above the collection area, and the scraper 11 is distributed parallel to the rotating shaft 4. An assembly block 7 is fixed on one of the outer chain plates of the two transmission chains 6, and the two assembly blocks 7 are symmetrically distributed. A cross bar 15 is fixedly provided at the bottom of the two assembly blocks 7. A limit shaft 16 is fixedly assembled inside the cross bar 15, and the scraper plate 8 is rotatably mounted on the outer surface of the limit shaft 16. The scraper plate 8 is inclined, and a pulling component is provided between one of the inclined surfaces of the scraper plate 8 and the cross bar 15. The transmission chain 6 drives the scraper plate 8 to move to the scraper 11. Under the action of the pulling component, the scraper plate 8 deflects around the limit shaft 16.

[0028] The pulling component includes an extension plate fixedly arranged on the side wall of the cross bar 15, and a plurality of tension springs 9 equidistantly distributed in a straight line are fixedly arranged between the extension plate and the scraper plate 8. Through the action of the tension springs 9, the position between the scraper plate 8 and the cross bar 15 can be deflected.

[0029] An inclined plate 3 is fixedly arranged directly above the baffle 2. The inclined plate 3 is inclined upward toward the collection area, and the inclined plate 3 and the end surface of the baffle 2 away from the collection area are flush with each other. The arrangement of the inclined plate 3 plays a guiding role for the scum.

[0030] A drive motor is fixedly arranged outside the housing 1, and the output end of the drive motor is connected to the end of one of the rotating shafts 4 through a coupling. The drive motor drives the rotating shaft 4 to drive the transmission chain 6 to move, and finally the scraper 11 and the arc-shaped toggle block 12 are operated.

[0031] Working principle:

[0032] The staff turns on the motor outside the shell 1 to make it work normally, and then the output end of the motor connects to the rotating shaft 4 through the coupling to drive the transmission chain 6 to move. An assembly block 7 is fixed on one of the outer chain plates of the transmission chain 6, and the bottom of the assembly block 7 is fixed with a cross bar 15, and the limit shaft 16 is fixed inside the cross bar 15. Finally, the transmission chain 6 can drive the scraper plate 8 to scrape off the scum on the liquid surface.

[0033] The tension spring 9 installed between the scraper plate 8 and the cross bar 15 can deflect the scraper plate 8. The scraper plate 8 moves to the position of the scraper plate 11, and the two contact each other to generate an action force and a reaction force. Under the action of the force, the tension spring 9 elastically deforms to deflect the scraper plate 8. At this time, the scraper plate 11 can scrape off the scum remaining on the scraper plate 8, thereby completing the removal of the residual scum on the scraper plate 8.

[0034] The treatment liquid in the flotation area is flush with the bottom end of the scraper plate 8, and the liquid level does not exceed the slope of the inclined plate 3. The placement of the inclined plate 3 allows the scraper plate 8 to guide the scum pushed by the scraper plate 8 after contacting the inclined plate 3, and make it enter the collection area. At this time, the tension spring 9 elastically deforms to ensure the tightness between the scraper plate 8 and the inclined plate 3.

[0035] Example 2: Please refer to Figure 6 , this embodiment is a further explanation of the first embodiment, the vibration unit includes two symmetrically distributed straight grooves opened inside the shell 1, the two ends of the scraper 11 are respectively slidably mounted inside the two straight grooves, springs 10 are fixedly installed between the two ends of the straight groove and the scraper 11, two straight grooves extend from the two ends of the scraper 11, a positioning shaft is placed on the outside of each straight groove, and the positioning shaft is rotatably embedded in the shell 1, a disc is fixedly mounted on the outer surface of each positioning shaft, and a plurality of arc-shaped toggle blocks 12 equidistantly distributed around the circumference are fixedly arranged on the outer surface of the disc, the arc surface of the arc-shaped toggle block 12 is in active contact with the scraper 11, the outer surface of the two positioning shafts and the two ends of one of the rotating shafts 4 are fixedly mounted with synchronous wheels 14, and a synchronous belt 13 is installed between the two synchronous wheels 14 on the same side, and the transmission of the synchronous belt 13 is driven by the rotating shaft 4 to rotate the arc-shaped toggle block 12 on the outer surface of the disc, thereby toggling the scraper 11.

[0036] The scraper 11 is in a stationary state, and there is a gap between the disc and the scraper 11 to avoid interference between the scraper 11 during the reciprocating vibration movement.

[0037] In this embodiment: the scraper plate 8 moves to the scraper plate 11 and contacts it. The scum that has not been scraped off on the outer surface of the scraper plate 8 is dropped into the collection area by the reciprocating vibration of the scraper plate 11. The transmission chain 6 drives the rotating shaft 4 to rotate. At the same time, the synchronous wheel 14 is on the outer surface of the rotating shaft 4, and the synchronous belt 13 is sleeved on the outer surface of the synchronous wheel 14, thereby driving the disc to rotate so that the arc-shaped toggle block 12 to toggle the scraper plate 11.

[0038] The spring 10 is connected to the scraper 11 and the notch opened in the shell 1. The arc-shaped toggle block 12 toggle the scraper 11 to realize reciprocating vibration of the scraper 11, so that the scraper 11 exerts a force on the scraper plate 8 and drives the scraper plate 8 to vibrate. The scraper plate 8 can accelerate the falling speed of the scum adhered to its surface due to the conduction of the vibration force, thereby ensuring that the scum adhered to the surface of the scraper plate 8 is effectively cleaned.

[0039] It should be noted that, in this article, 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 "include"-"comprise" 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.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated flotation device for solid-liquid separation, characterized in that: include: A shell (1), a baffle (2) for partitioning the shell (1), the baffle (2) dividing the interior of the shell (1) into an air flotation area and a collection area, the top rotating frame of the shell (1) is provided with two rotating shafts (4), and the two rotating shafts (4) are symmetrically distributed, the outer surface of each rotating shaft (4) is fixedly sleeved with two transmission gears (5), and a transmission chain (6) is arranged between the two transmission gears (5) on the same side, a scraping plate (8) is arranged inside the shell (1), and the two transmission chains (6) simultaneously drive the scraping plate (8) to move; Also includes: A scraping unit, used for cleaning scum attached to the lower outer surface of the scraping plate (8), the scraping unit being arranged above the collecting area; A vibration unit is provided to enable the scraping unit to remove scum on the surface of the scraping plate (8) under vibration conditions, and the vibration unit is arranged between the scraping unit and the housing (1).

2. The integrated air flotation device for solid-liquid separation according to claim 1, characterized in that: The scraping unit comprises a scraper (11), and the scraper (11) is located above the collection area, and the scraper (11) and the rotating shaft (4) are arranged in parallel. An assembly block (7) is fixed on one of the outer chain plates of the two transmission chains (6), and the two assembly blocks (7) are symmetrically arranged. A cross bar (15) is fixedly arranged at the bottom of the two assembly blocks (7). A limit shaft (16) is fixedly arranged inside the cross bar (15), and the scraper plate (8) is rotatably sleeved on the outer surface of the limit shaft (16). The scraper plate (8) is inclined, and a pulling component is arranged between one of the inclined surfaces of the scraper plate (8) and the cross bar (15).

3. The integrated air flotation device for solid-liquid separation according to claim 2, characterized in that: The pulling component comprises an extension plate fixedly arranged on the side wall of the crossbar (15), and a plurality of tension springs (9) equidistantly distributed in a straight line are fixedly arranged between the extension plate and the scraper plate (8).

4. The integrated air flotation device for solid-liquid separation according to claim 2, characterized in that: The vibration unit comprises two symmetrically distributed straight grooves opened inside the shell (1), the two ends of the scraper (11) are respectively slidably mounted inside the two straight grooves, springs (10) are fixedly installed between the two ends of the straight groove and the scraper (11), two straight grooves extend from the two ends of the scraper (11), a positioning shaft is placed on the outside of each straight groove, and the positioning shaft is rotatably embedded in the shell (1), a disk is fixedly mounted on the outer surface of each positioning shaft, and a plurality of arc-shaped toggle blocks (12) are fixedly arranged on the outer surface of the disk and are equidistantly distributed around the circumference, the arc surface of the arc-shaped toggle block (12) is in active contact with the scraper (11), the outer surfaces of the two positioning shafts and the two ends of one of the rotating shafts (4) are fixedly mounted with synchronous wheels (14), and a synchronous belt (13) is installed between the two synchronous wheels (14) on the same side.

5. The integrated air flotation device for solid-liquid separation according to claim 4, characterized in that: The scraper (11) is in a stationary state, and a gap exists between the circular disc and the scraper (11).

6. The integrated air flotation device for solid-liquid separation according to claim 1, characterized in that: An inclined plate (3) is fixedly arranged directly above the baffle plate (2); the inclined plate (3) is inclined upward toward the collection area, and the inclined plate (3) and an end surface of the baffle plate (2) away from the collection area are flush with each other.

7. The integrated air flotation device for solid-liquid separation according to claim 1, characterized in that: A drive motor is fixedly arranged outside the housing (1), and an output end of the drive motor is butted against an end of one of the rotating shafts (4) via a coupling.

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