Solid-liquid separation mechanism and separation method applied to air flotation machine

Abstract

The present invention discloses a solid-liquid separation mechanism applied to an air flotation machine and a separation method thereof. The solid-liquid separation mechanism comprises an air flotation tank, a telescopic source, a plurality of solid collecting barrels and a power mechanism. A truss is arranged on the air flotation tank, the telescopic source is fixedly installed on the truss, the movable end of the telescopic source extends vertically downward and is connected with a lifting frame, the plurality of solid collecting barrels are connected with the lifting frame through a movable component, a filter component for separating solids and liquids is arranged in the solid collecting barrel, and a brush body is arranged on the outer wall of the solid collecting barrel, the power mechanism is arranged on the lifting frame, and the power mechanism drives the plurality of solid collecting barrels to expand and contract and rotate through the movable component; the plurality of solid collecting barrels of the present invention expand outward and enter the air flotation tank to reciprocate up and down in a short distance, so that the water in the air flotation tank is in a moving state and drives the suspended matter floating on the surface to enter the solid collecting barrel through the top opening, the water and the suspended matter are filtered by the filter component in the solid collecting barrel, the separation efficiency of the floating suspended matter is high, and the collection effect is good.

Description

Technical Field

[0001] The present invention relates to the technical field of air-floatation solid-liquid separation, in particular to a solid-liquid separation mechanism applied to an air-floatation machine and a separation method thereof. Background Art

[0002] Flotation is the process of generating a large number of tiny bubbles in water, which causes the air to attach to the suspended particles in the form of highly dispersed tiny bubbles, resulting in a state where the density is less than that of water. The buoyancy principle is used to make the particles float on the water surface, thereby achieving solid-liquid separation.

[0003] At present, the existing technology generally uses a scraper to scrape the layer of solid matter floating on the water surface to the discharge outlet. This method not only has a low separation efficiency for the floating suspended matter, but also the suspended matter will adhere to the inner wall of the pool body during the floating and scraping process, making it difficult to effectively remove the suspended matter adhering to the water surface and below the water surface of the pool body. The separated suspended matter still contains a lot of water. Therefore, the present invention proposes a solid-liquid separation mechanism and a separation method applied to an air flotation machine that can solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a solid-liquid separation mechanism and a separation method thereof applied to an air flotation machine, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a solid-liquid separation mechanism applied to an air flotation machine, comprising:

[0006] An air flotation tank, on which a truss is arranged;

[0007] A telescopic source is fixedly mounted on the truss, and a movable end of the telescopic source extends vertically downward and is connected to a lifting frame;

[0008] Multiple groups of solid collecting cylinders are connected to the lifting frame through movable components, a filter component for separating solids and liquids is arranged inside the solid collecting cylinder, and a brush body is arranged on the outer wall of the solid collecting cylinder;

[0009] The power mechanism is arranged on the lifting frame, and drives the multiple sets of collecting and fixing cylinders to expand, shrink and rotate through movable components.

[0010] As a preferred technical solution of the present invention, the filter assembly includes an isolation cover and multiple groups of filter meshes arranged from top to bottom in the collecting barrel, the isolation cover is a bucket-shaped structure, and the multiple groups of filter meshes are vertically spaced in the collecting barrel through a support frame, the filter mesh includes a horizontal filter layer and a vertical blocking layer, and the vertical blocking layer is distributed on the outer circle of the horizontal filter layer.

[0011] As a preferred technical solution of the present invention, the support frame is detachably connected to the solid collecting cylinder through a connecting piece, a cover body is pivotally connected to the bottom of the solid collecting cylinder, the cover body can be pivoted to open or close the solid collecting cylinder, a drain pipe is arranged on the cover body, and a control valve body is installed on the drain pipe.

[0012] As a preferred technical solution of the present invention, the lifting frame is connected to at least one set of guide rods, and the guide rods are vertically arranged on the truss.

[0013] As a preferred technical solution of the present invention, the brush body is an annular ring extending outward, and when the multiple sets of collecting and fixing tubes expand outward, the brush body is driven to contact the inner wall of the flotation tank.

[0014] As a preferred technical solution of the present invention, the movable assembly includes multiple sets of wheel bodies, and the wheel bodies correspond to the solid collecting cylinders one by one and are connected to the solid collecting cylinders through traction rods.

[0015] As a preferred technical solution of the present invention, the power mechanism includes a first circle body and a second circle body movably connected to the lifting frame, and a power source and a pressure source installed on the lifting frame. The power source is used to drive the second circle body to rotate. Each group of the wheel bodies is connected to the second circle body through a group of expansion and contraction components. A transmission belt is sleeved between the first circle body and the multiple wheel bodies. The movable end of the pressure source is connected to the first circle body through an adjustment component. The pressure source is telescopically adjusted to adjust the distance between the first circle body and the second circle body through the adjustment component so that the expansion and contraction component drives the collecting cylinder to expand and contract.

[0016] As a preferred technical solution of the present invention, the adjusting assembly includes a cavity rotatably arranged on the second ring body, a sleeve arranged on the cavity, and a sliding rod inserted into the sleeve. The sleeve is connected to the second ring body through the cavity and is filled with oil inside. One end of the sliding rod in the sleeve is connected to the first piston, and the other end is connected to the first ring body through the bearing seat. The movable end of the pressure source is connected to the sliding rod.

[0017] As a preferred technical solution of the present invention, the expansion and contraction assembly includes an extension tube arranged on the second ring body, and a support rod connected to the wheel body, the extension tube is connected to the second ring body, the support rod penetrates into the extension tube and is connected to the second piston.

[0018] The solid-liquid separation method applied to the air flotation machine is used for the solid-liquid separation mechanism described in any one of the above technical solutions, and specifically comprises the following steps:

[0019] S1. After working in the flotation tank for a period of time, the flotation machine generates a large number of tiny bubbles, which attach to the suspended particles in the water and float up to gather on the surface of the water;

[0020] S2. The power mechanism drives multiple groups of solid collecting cylinders to expand outward through movable components. The telescopic source drives the lifting frame to drive the expanded multiple groups of solid collecting cylinders into the air flotation tank, and drives the multiple groups of solid collecting cylinders to reciprocate up and down in the air flotation tank for a short distance, so that the water in the air flotation tank is in a state of motion, driving the suspended matter floating on the surface to enter the solid collecting cylinder through the top opening. The water and suspended matter are filtered through the filtering component in the solid collecting cylinder, and the suspended matter is retained in the solid collecting cylinder, and the water is discharged from the solid collecting cylinder;

[0021] S3. After the collection and filtration of the suspended matter in the flotation tank is completed, the telescopic source drives the multiple groups of solid collecting cylinders to move upward for a distance, and the power mechanism drives the multiple groups of solid collecting cylinders that have expanded outward to rotate in the flotation tank through the movable components, and the brushes on each group of solid collecting cylinders continuously reciprocate up and down for a long distance under the drive of the telescopic source, so that the brush body on each group of solid collecting cylinders rotates and contacts with the inner wall of the flotation tank during the up and down movement, and the suspended matter adhering to the inner wall of the flotation tank under the water surface and on the water surface is brushed off;

[0022] S4. After brushing off the suspended matter on the inner wall of the flotation tank, the telescopic source drives the multiple groups of solid collecting cylinders to separate from the water surface upward, and the power mechanism drives the multiple groups of solid collecting cylinders driven by the movable components to retract and rotate, so that the suspended matter in the solid collecting cylinders carrying the residual water can be thrown down and flow out under the action of centrifugal rotation, thereby achieving further separation of water and suspended matter. At the same time, the suspended matter in the solid collecting cylinders is thrown to the side of the filter component under the action of centrifugation, thereby avoiding blockage when collecting suspended matter next time, which causes water to be unable to flow out of the solid collecting cylinder smoothly.

[0023] S5. Repeat steps S1-S4 until there is no obvious accumulation of suspended matter on the water surface.

[0024] Compared with the prior art, the present invention has the following beneficial effects: the present invention is applied to the solid-liquid separation mechanism of the flotation machine, the power mechanism drives the multiple groups of solid collecting cylinders to expand outward through the movable components, the telescopic source drives the lifting frame to drive the multiple groups of solid collecting cylinders that have expanded outward to enter the flotation tank, and drives the multiple groups of solid collecting cylinders to reciprocate up and down in the flotation tank for a short distance, so that the water in the flotation tank is in a state of motion, driving the suspended matter floating on the surface to enter the solid collecting cylinder through the top opening, the multiple groups of solid collecting cylinders that have expanded outward effectively cover the flotation tank, the water and the suspended matter are filtered through the filtering component in the solid collecting cylinder, the suspended matter is retained in the solid collecting cylinder, and the water is discharged from the solid collecting cylinder, the separation efficiency of the floating suspended matter is high, and the collection effect is good;

[0025] The power mechanism drives the expanded multiple sets of solid collecting cylinders to rotate in the flotation tank through the movable components, and the brushes on each set of solid collecting cylinders are driven by the telescopic source to reciprocate up and down for a long distance, so that the brushes on each set of solid collecting cylinders are in contact with the inner wall of the flotation tank during the up and down movement. At this time, water no longer enters the solid collecting cylinders, and the suspended matter adhering to the inner wall of the flotation tank under the water surface and on the water surface is effectively brushed off;

[0026] The power mechanism drives multiple groups of solid collecting barrels driven by movable components to retract and rotate. The retracted multiple groups of solid collecting barrels have better stability when rotating rapidly, so that the suspended matter in the solid collecting barrels carrying residual water can be thrown off and flow out under the action of centrifugal rotation, thereby achieving further separation of water and suspended matter. At the same time, the suspended matter in each group of solid collecting barrels is thrown to one side of the filter component under the action of centrifuge, thereby avoiding blockage when collecting suspended matter next time, which may cause water to be unable to flow out of the solid collecting barrel smoothly, thereby ensuring the separation effect of suspended matter collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the connection relationship between multiple sets of collecting and fixing cylinders and the lifting frame of the present invention;

[0029] Figure 3 It is a schematic diagram of the power mechanism structure of the present invention;

[0030] Figure 4 It is a schematic diagram of the connection relationship between the first circle body and the second circle body and the lifting frame of the present invention;

[0031] Figure 5 This is a schematic diagram of the structure of the regulating component of the present invention;

[0032] Figure 6 It is a schematic diagram of the structure of the expansion and contraction component of the present invention;

[0033] Figure 7 This is a schematic diagram of the distribution of the filter components in the solid collecting tube of the present invention;

[0034] Figure 8 This is a schematic diagram of the filter mesh structure of the present invention;

[0035] In the figure: 100, air flotation tank; 110, truss; 200, telescopic source; 210, lifting frame; 220, guide rod; 300, solid collecting cylinder; 310, movable assembly; 311, wheel body; 312, traction rod; 320, brush body; 330, filter assembly; 331, isolation cover; 332, filter mesh; 3321, horizontal filter layer; 3322, vertical barrier layer; 333, support frame; 340, cover body; 341, row Water pipe; 342, control valve body; 400, power mechanism; 410, first circle; 411, connecting plate; 420, second circle; 430, power source; 440, pressure source; 450, transmission belt; 460, expansion and contraction assembly; 461, extension tube; 462, support rod; 463, second piston; 470, adjustment assembly; 471, cavity; 472, sleeve; 473, slide rod; 474, first piston; 475, bearing seat. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example 1

[0038] See also Figure 1-8 , a solid-liquid separation mechanism applied to an air flotation machine includes an air flotation tank 100, a telescopic source 200, a plurality of solid collecting cylinders 300 and a power mechanism 400.

[0039] See also Figure 1 A truss 110 is provided on the flotation pool 100, and an air flotation machine is installed in the flotation pool 100. The air flotation machine can generate a large number of tiny bubbles in the flotation pool 100 to attach suspended particles in the water. The flotation pool 100 is also provided with pipes for water inlet and water outlet, so that the water inlet and water outlet can be controlled for flotation treatment.

[0040] See also Figure 1 The telescopic source 200 is fixedly mounted on the truss 110, and the movable end of the telescopic source 200 extends vertically downward and is connected to the lifting frame 210. The telescopic source 200 is preferably an electric cylinder, which can drive the lifting frame 210 to move in the vertical direction to adjust the height relative to the flotation tank 100.

[0041] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , multiple groups of solid collecting cylinders 300 are connected to the lifting frame 210 through movable components 310, and a filter component 330 for separating solids and liquids is arranged in the solid collecting cylinder 300, and a brush body 320 is arranged on the outer wall of the solid collecting cylinder 300. The power mechanism 400 drives the multiple groups of solid collecting cylinders 300 to expand, contract and rotate through the movable components 310. The brush body 320 is an annular ring extending outward. When the multiple groups of solid collecting cylinders 300 expand outward, the brush body 320 is driven to contact the inner wall of the flotation tank 100. The brush body 320 is a plastic structure made of materials such as PA and PP. It can be deformed and bent when in contact with the inner wall of the flotation tank 100, thereby increasing the contact surface. There are multiple groups of brush bodies 320 on each group of solid collecting cylinders 300, and the brush bodies 320 on adjacent solid collecting cylinders 300 are vertically staggered, thereby improving the brushing effect of suspended matter adhering to the inner wall of the flotation tank 100.

[0042] After the air flotation machine has worked in the air flotation tank 100 for a period of time, a large number of tiny bubbles are generated, which attach to the suspended particles in the water and float up and gather on the surface of the water. The power mechanism 400 drives the multiple groups of solid collecting cylinders 300 to expand outward through the movable component 310. The telescopic source 200 drives the lifting frame 210 to drive the multiple groups of solid collecting cylinders 300 that have expanded outward to enter the air flotation tank 100, and drives the multiple groups of solid collecting cylinders 300 to reciprocate up and down in the air flotation tank 100 at a short distance, so that the water in the air flotation tank 100 is in a state of motion, driving the floating suspended particles on the surface to enter the solid collecting cylinder 300 through the top opening. The multiple groups of solid collecting cylinders 300 that have expanded outward effectively cover the air flotation tank 100. The water and suspended particles are filtered through the filter component 330 in the solid collecting cylinder 300, and the suspended particles are retained in the solid collecting cylinder 300. The water is discharged from the solid collecting cylinder 300, and the separation efficiency of the floating suspended particles is high and the collection effect is good.

[0043] After the collection and filtration of the suspended matter in the flotation pool 100 is completed, the telescopic source 200 drives the multiple groups of solid collecting cylinders 300 to move upward for a distance, and the power mechanism 400 drives the multiple groups of solid collecting cylinders 300 that have been expanded to rotate in the flotation pool 100 through the movable component 310, and the brush body 320 on each group of solid collecting cylinders 300 is driven by the telescopic source 200 to reciprocate up and down for a long distance, so that the brush body 320 on each group of solid collecting cylinders 300 is in rotational contact with the inner wall of the flotation pool 100 during the up and down movement. At this time, water no longer enters the solid collecting cylinder 300, and the suspended matter adhered to the inner wall of the flotation pool 100 under the water surface and on the water surface is effectively brushed off. During the brushing process, since the brush body 320 can reciprocate in and out of the water, the suspended matter adhered by the brush body 320 can be thrown into the water, and can float to the surface of the water after the flotation machine works again, and can be separated from the water when the suspended matter is collected next time, so as to remove and collect the suspended matter adhered to the inner wall of the pool under the water surface and on the water surface;

[0044] After brushing off the suspended matter on the inner wall of the flotation tank 100, the telescopic source 200 drives the multiple groups of solid collecting barrels 300 to separate from the water surface upward, and the multiple groups of solid collecting barrels 300 driven by the power mechanism 400 through the movable component 310 are retracted and rotated. At this time, the lower half of the solid collecting barrel 300 is still in the flotation tank 100, and the rotation speed of the solid collecting barrel 300 is faster than the rotation speed of the solid collecting barrel 300 to drive the brush body 320 to brush off the suspended matter on the inner wall of the flotation tank 100. The retracted multiple groups of solid collecting barrels 300 have better stability when rotating rapidly, so that the suspended matter in the solid collecting barrel 300 can be thrown off and flow out under the action of centrifugal rotation, thereby achieving further separation of water and suspended matter. At the same time, the suspended matter in each group of solid collecting barrels 300 is thrown to the side of the filter component 330 under the action of centrifugation, thereby avoiding blockage when collecting suspended matter next time, which causes water to be unable to flow out of the solid collecting barrel 300 smoothly, thereby ensuring the separation effect of collecting suspended matter.

[0045] Example 2

[0046] Based on Example 1, please refer to Figure 7 , Figure 8 The filter assembly 330 includes an isolation cover 331 and multiple groups of filter mesh sheets 332 arranged from top to bottom in the solid collecting cylinder 300. The isolation cover 331 is a bucket-shaped structure. The multiple groups of filter mesh sheets 332 are vertically spaced and distributed in the solid collecting cylinder 300 through a support frame 333. The filter mesh sheets 332 include a horizontal filter layer 3321 and a vertical barrier layer 3322. The vertical barrier layer 3322 is distributed on the outer circle of the horizontal filter layer 3321. When water carries suspended matter into the solid collecting cylinder 300 through the isolation cover 331 then passes through multiple groups of filter meshes 332 in sequence, and the horizontal filter layer 3321 of the filter mesh 332 filters the suspended matter. The bucket-shaped isolation cover 331 blocks the suspended matter to prevent the filtered suspended matter from flowing back, and the suspended matter on the horizontal filter layer 3321 is thrown onto the vertical blocking layer 3322 under the action of centrifugation. Water can flow out through the vertical blocking layer 3322. When collecting suspended matter next time, the horizontal filter layer 3321 can filter the suspended matter again with high efficiency.

[0047] See also Figure 7 , Figure 8 The support frame 333 is detachably connected to the solid collecting cylinder 300 through a connecting piece. The bottom of the solid collecting cylinder 300 is pivotally connected to a cover body 340, and the cover body 340 can be pivoted to open or close the solid collecting cylinder 300. The connecting piece is preferably a bolt. A drain pipe 341 is arranged on the cover body 340, and a control valve body 342 is installed on the drain pipe 341. When multiple sets of solid collecting cylinders 300 are inserted into the water in the flotation tank 100 with a short distance reciprocating motion up and down to collect and separate suspended matter, and when multiple sets of solid collecting cylinders 300 are located in the water of the flotation tank 100, When the surface rotates rapidly to separate from the moisture, the control valve body 342 opens the drain pipe 341 by receiving an electrical signal, and the water can flow out. When the solid collecting barrel 300 drives the brush body 320 to rotate and contact with the inner wall of the flotation tank 100 during the up and down movement, the control valve body 342 closes the drain pipe 341 by receiving an electrical signal, so that the water will not enter the barrel through the drain pipe 341, and the cover body 340 can be opened regularly to remove the support frame 333 from the solid collecting barrel 300 for cleaning.

[0048] Example 3

[0049] Based on Example 1 or Implementation 2, please refer to Figure 1 The lifting frame 210 is connected to at least one set of guide rods 220, which are vertically penetrated on the truss 110. There are preferably two sets of guide rods 220, so that the telescopic source 200 can simultaneously drive the guide rods 220 to move when driving the lifting frame 210 to move vertically, thereby further improving the stability of the lifting frame 210.

[0050] Example 4

[0051] See also Figure 3 , Figure 4 , Figure 5 , Figure 6 On the basis of any one of embodiments 1-3, the movable component 310 includes a plurality of groups of wheel bodies 311, the wheel bodies 311 correspond to the solid collecting barrel 300 one by one and are connected to the solid collecting barrel 300 through a traction rod 312, the power mechanism 400 includes a first circle body 410 and a second circle body 420 movably connected to the lifting frame 210, and a power source 430 and a pressure source 440 installed on the lifting frame 210, the power source 430 is used to drive the second circle body 420 to rotate, each group of wheel bodies 311 is connected to the second circle body 420 through a group of expansion and contraction components 460, a transmission belt 450 is sleeved between the first circle body 410 and the plurality of wheel bodies 311, the power source 430 is preferably a servo motor, the power source 430 drives the second circle body 420 to rotate, and the second circle body 420 drives the plurality of solid collecting barrels 300 to rotate through the plurality of groups of wheel bodies 311.

[0052] See also Figure 3 , Figure 4 , Figure 5 , Figure 6 The movable end of the pressure source 440 is connected to the first circle body 410 through the adjusting component 470. The pressure source 440 is telescopically adjusted through the adjusting component 470 to adjust the distance between the first circle body 410 and the second circle body 420 so that the expansion and contraction component 460 drives the collecting tube 300 to expand and contract. The adjusting component 470 includes a cavity 471 rotatably arranged on the second circle body 420, a sleeve 472 arranged on the cavity 471, and a slide rod 473 inserted into the sleeve 472. The sleeve 472 is connected to the second circle body 420 through the cavity 471 and is filled with oil. One end of the slide rod 473 in the sleeve 472 is connected to the first piston 474, and the other end is connected to the first circle body 410 through the bearing seat 475. The movable end of the pressure source 440 is connected to the slide rod 473. 73 is connected, the expansion and contraction component 460 includes an extension tube 461 arranged on the second circle body 420, and a support rod 462 connected to the wheel body 311, the extension tube 461 is connected to the second circle body 420, the support rod 462 penetrates into the extension tube 461 and is connected with the second piston 463, the first circle body 410 is slidably connected with the lifting frame 210 through the connecting plate 411, the pressure source 440 is preferably a hydraulic cylinder, the movable end of the pressure source 440 is telescopically driven to drive the sliding rod 473 to make the first piston 474 move in the sleeve 472, and the volume of the oil entering the extension tube 461 from the cavity 471 can be controlled, so that the support rod 462 moves along the extension tube 461 through the second piston 463, so that the wheel body 311 expands outward or shrinks inward, thereby driving the multiple groups of collecting cylinders 300 to expand and shrink.

[0053] Example 5

[0054] The solid-liquid separation method applied to the flotation machine is used in any one of the above embodiments 1-4, and specifically comprises the following steps:

[0055] S1. After the air flotation machine has been working for a period of time in the air flotation tank 100, a large number of tiny bubbles are generated, which attach to the suspended particles in the water and float up to gather on the surface of the water;

[0056] S2. The power mechanism 400 drives the multiple groups of solid collecting cylinders 300 to expand outward through the movable assembly 310. The telescopic source 200 drives the lifting frame 210 to drive the multiple groups of solid collecting cylinders 300 that have expanded outward to enter the flotation tank 100, and drives the multiple groups of solid collecting cylinders 300 to reciprocate up and down in a short distance in the flotation tank 100, so that the water in the flotation tank 100 is in a state of motion, driving the suspended matter floating on the surface to enter the solid collecting cylinder 300 through the top opening, and the water and the suspended matter are filtered through the filter assembly 330 in the solid collecting cylinder 300, and the suspended matter is retained in the solid collecting cylinder 300, and the water is discharged from the solid collecting cylinder 300;

[0057] S3. After the collection and filtration of the suspended matter in the flotation tank 100 is completed, the telescopic source 200 drives the multiple groups of solid collecting cylinders 300 to move upward for a distance, and the power mechanism 400 drives the multiple groups of solid collecting cylinders 300 to rotate in the flotation tank 100 through the movable component 310, and the multiple groups of solid collecting cylinders 300 are driven by the telescopic source 200 to reciprocate up and down for a long distance, so that the brush body 320 on each group of solid collecting cylinders 300 rotates and contacts with the inner wall of the flotation tank 100 during the up and down movement, and the suspended matter adhering to the inner wall of the flotation tank 100 under the water surface and on the water surface is brushed off;

[0058] S4. After brushing off the suspended matter on the inner wall of the flotation tank 100, the telescopic source 200 drives the multiple groups of solid collecting barrels 300 to separate from the water surface upward, and the power mechanism 400 drives the multiple groups of solid collecting barrels 300 to retract and rotate through the movable component 310, so that the suspended matter in the solid collecting barrel 300 can be thrown down and flow out with the residual water under the action of centrifugal rotation, thereby achieving further separation of water and suspended matter. At the same time, the suspended matter in the solid collecting barrel 300 is thrown to the side of the filter component 330 under the action of centrifugation, thereby avoiding blockage when collecting suspended matter next time, which causes water to be unable to flow out of the solid collecting barrel 300 smoothly.

[0059] S5. Repeat steps S1-S4 until there is no obvious accumulation of suspended matter on the water surface.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated 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 that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A solid-liquid separation mechanism applied to an air flotation machine, characterized in that: include: an air flotation tank, on which a truss is disposed; A telescopic source is fixedly mounted on the truss, and a movable end of the telescopic source extends vertically downward and is connected to a lifting frame; Multiple groups of solid collecting cylinders are connected to the lifting frame through movable components, a filter component for separating solids and liquids is arranged inside the solid collecting cylinder, and a brush body is arranged on the outer wall of the solid collecting cylinder; A power mechanism is arranged on the lifting frame, and drives the multiple sets of collecting and fixing cylinders to expand, contract and rotate through movable components; The movable assembly includes a plurality of wheel groups, the wheel groups correspond to the solid collecting cylinders one by one and are connected to the solid collecting cylinders through traction rods; The power mechanism comprises a first circle body and a second circle body movably connected to the lifting frame, and a power source and a pressure source installed on the lifting frame, wherein the power source is used to drive the second circle body to rotate, each group of the wheel bodies is connected to the second circle body through a group of expansion and contraction components, a transmission belt is sleeved between the first circle body and the plurality of wheel bodies, the movable end of the pressure source is connected to the first circle body through an adjustment component, and the pressure source is retracted and adjusted through the adjustment component to adjust the distance between the first circle body and the second circle body so that the expansion and contraction component drives the collecting tube to expand and contract; The regulating assembly comprises a cavity rotatably arranged on the second ring body, a sleeve arranged on the cavity, and a slide rod inserted into the sleeve, the sleeve is connected with the second ring body through the cavity and is filled with oil, one end of the slide rod in the sleeve is connected with the first piston, and the other end is connected with the first ring body through the bearing seat, and the movable end of the pressure source is connected with the slide rod; The expansion and contraction assembly comprises an extension tube arranged on the second ring body, and a support rod connected to the wheel body, the extension tube is communicated with the second ring body, the support rod penetrates into the extension tube and is connected to the second piston.

2. The solid-liquid separation mechanism applied to the air flotation machine according to claim 1, characterized in that: The filter assembly includes an isolation cover and multiple groups of filter meshes arranged from top to bottom in the collecting cylinder, the isolation cover is a bucket-shaped structure, and the multiple groups of filter meshes are vertically spaced and distributed in the collecting cylinder through a support frame. The filter mesh includes a horizontal filter layer and a vertical blocking layer, and the vertical blocking layer is distributed on the outer circle of the horizontal filter layer.

3. The solid-liquid separation mechanism applied to the air flotation machine according to claim 2, characterized in that: The support frame is detachably connected to the solid collecting cylinder via a connecting piece. A cover body is pivotally connected to the bottom of the solid collecting cylinder. The cover body can be pivoted to open or close the solid collecting cylinder. A drain pipe is arranged on the cover body, and a control valve body is installed on the drain pipe.

4. The solid-liquid separation mechanism applied to an air flotation machine according to claim 1, characterized in that: The lifting frame is connected with at least one set of guide rods, and the guide rods are vertically arranged on the truss.

5. The solid-liquid separation mechanism applied to an air flotation machine according to claim 1, characterized in that: The brush body is an annular ring extending outward, and when the multiple sets of collecting and fixing cylinders expand outward, the brush body is driven to contact the inner wall of the air flotation tank.

6. A solid-liquid separation method applied to an air flotation machine, used in the solid-liquid separation mechanism according to any one of claims 1 to 5, characterized in that: The specific steps include: S1. After working in the flotation tank for a period of time, the flotation machine generates a large number of tiny bubbles, which attach to the suspended particles in the water and float up to gather on the surface of the water; S2. The power mechanism drives multiple groups of solid collecting cylinders to expand outward through movable components. The telescopic source drives the lifting frame to drive the expanded multiple groups of solid collecting cylinders into the air flotation tank, and drives the multiple groups of solid collecting cylinders to reciprocate up and down in the air flotation tank for a short distance, so that the water in the air flotation tank is in a state of motion, driving the suspended matter floating on the surface to enter the solid collecting cylinder through the top opening. The water and suspended matter are filtered through the filtering component in the solid collecting cylinder, and the suspended matter is retained in the solid collecting cylinder, and the water is discharged from the solid collecting cylinder; S3. After the collection and filtration of the suspended matter in the flotation tank is completed, the telescopic source drives the multiple groups of solid collecting cylinders to move upward for a distance, and the power mechanism drives the multiple groups of solid collecting cylinders that have expanded outward to rotate in the flotation tank through the movable components, and the brushes on each group of solid collecting cylinders continuously reciprocate up and down for a long distance under the drive of the telescopic source, so that the brush body on each group of solid collecting cylinders rotates and contacts with the inner wall of the flotation tank during the up and down movement, and the suspended matter adhering to the inner wall of the flotation tank under the water surface and on the water surface is brushed off; S4. After the suspended matter on the inner wall of the flotation tank is brushed off, the telescopic source drives the multiple groups of solid collecting cylinders to separate from the water surface upward, and the multiple groups of solid collecting cylinders driven by the power mechanism through the movable components are retracted and rotated, so that the suspended matter in the solid collecting cylinders carrying the residual water can be thrown out under the action of centrifugal rotation, thereby further separating the water and the suspended matter. At the same time, the suspended matter in the solid collecting cylinders is thrown to the side of the filter component under the action of centrifugal force, thereby avoiding blockage when collecting the suspended matter next time, which causes the water to be unable to flow out smoothly from the solid collecting cylinder; S5. Repeat steps S1-S4 until there is no obvious accumulation of suspended matter on the water surface.

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