A device and process for treating xanthate wastewater

Abstract

The present invention discloses a xanthate wastewater treatment device and process, which relates to the technical field of xanthate wastewater treatment. An air flotation tank; a stirrer is arranged on one side of the air flotation tank; a cleaner is arranged on the other side of the air flotation tank. A first guiding block and a second guiding block are fixedly connected in the air flotation tank, and there is a gap between the first guiding block and the second guiding block; a material containing shell is fixedly connected to one side of the air flotation tank close to the cleaner; a gas guiding shell is fixedly connected to the air flotation tank and faces between the first guiding block and the second guiding block. Liquid spraying pipes are fixedly connected to the opposite sides of the first guiding block and the second guiding block, and a plurality of liquid outlets are arranged on the liquid spraying pipes. By using the high-speed ejected water jet to directly impact the bubbles, the present invention enables the large bubbles to actively burst, reduces the proportion of large bubbles, ensures that the sizes of the bubbles are more consistent during the air flotation process, and thus improves the overall treatment efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of xanthate wastewater treatment, and particularly to a xanthate wastewater treatment device and process. Background Art

[0002] Xanthate wastewater is generated during the use of xanthate (also known as sodium ethyl xanthate or sodium butyl xanthate) as a flotation agent. In the process of mineral flotation, xanthate is added to the pulp to improve the selective adsorption and separation efficiency of target minerals. After flotation, the remaining pulp not only contains unreacted xanthate, but may also include other chemical substances and impurities, and these residues together constitute xanthate wastewater.

[0003] To effectively treat this kind of wastewater, existing equipment usually includes sedimentation tanks, air flotation machines, sand filters, reverse osmosis devices, ultrafiltration devices, etc. Among them, the air flotation machine is widely used due to its high efficiency in removing suspended solids. Its working principle is as follows: First, the wastewater is flocculated to make fine particles aggregate into larger flocs; then, tiny bubbles are injected into the wastewater, and these bubbles attach to the flocs, causing them to float to the water surface to form a scum layer. The cleaning equipment then collects and treats the scum. This process can not only significantly reduce the suspended solid content in the wastewater, but also provide better inlet conditions for subsequent treatment steps.

[0004] However, there is a problem with existing air flotation machines when generating bubbles: Bubbles are prone to fuse with each other to form unstable large bubbles. This not only reduces the stability of the scum layer, but may also cause secondary dispersion, causing the flocs that have aggregated to redisperse into the water, thus affecting the cleaning effect of the scum and the overall treatment efficiency. Summary of the Invention

[0005] To solve the problems mentioned in the above background art, the present invention provides a xanthate wastewater treatment device.

[0006] The technical solution of the present invention is: A xanthate wastewater treatment device and process, comprising: an air flotation tank;

[0007] A stirrer, arranged on one side of the air flotation tank;

[0008] A cleaner, arranged on the other side of the air flotation tank. A first guiding block and a second guiding block are fixedly connected inside the air flotation tank, and there is a gap between the first guiding block and the second guiding block;

[0009] A material holding shell, fixedly connected to the side of the air flotation tank close to the cleaner, and the cleaner is located between the material holding shell and the second guiding block;

[0010] The air guide shell is fixedly connected to the air flotation tank. Spray pipes are fixedly connected to the facing sides of the first guiding block and the second guiding block. The spray pipes are provided with a plurality of liquid outlets. The water jets ejected from the liquid outlets on the spray pipes impact the surrounding large air bubbles.

[0011] The air supply assembly is arranged on the second guiding block and is used for sending gas into the wastewater.

[0012] Furthermore, both of the two spray pipes are located above the air guide shell. The plurality of liquid outlets on the two spray pipes are arranged in a staggered manner, and there is a gap between the water jets ejected from the liquid outlets on the two spray pipes.

[0013] Furthermore, the air supply assembly includes: a first driving member arranged on the second guiding block; a connecting frame fixedly connected to the first driving member;

[0014] A plurality of fixed shells are all fixedly connected to the connecting frame. The fixed shells are fixedly connected and communicated with air supply pipes. A movable shell is slidably connected to a sealing shell, and a one-way valve is arranged in the sealing shell;

[0015] A plurality of movable shells are the same in number as the fixed shells and are respectively fixedly connected and communicated with the adjacent sealing shells. The sealing shell is slidably connected to a sliding shell communicated therewith, and the sliding shell is fixedly connected and communicated with an air outlet shell;

[0016] A driving assembly is arranged on the connecting frame and is used for driving all the fixed shells to move.

[0017] Furthermore, the driving assembly includes:

[0018] A second driving member, and the second driving member is arranged on the connecting frame;

[0019] A connecting plate is fixedly connected to the second driving member. The connecting plate is fixedly connected with sliding rods the same in number as the sealing shells. The sliding rods pass through the adjacent fixed shells and are slidably connected therewith. One side of the sliding rod located in the adjacent fixed shell is fixedly connected to the adjacent sealing shell;

[0020] A plurality of fishing assemblies are the same in number as the movable shells and are respectively arranged in the adjacent movable shells and are used for fishing sediment;

[0021] A plurality of deceleration assemblies are the same in number as the movable shells and are respectively arranged in the adjacent sealing shells and are used for slowing down the moving speed of the sliding shell.

[0022] Furthermore, the fishing assembly includes:

[0023] Swinging fan blades distributed in an annular array are all rotatably connected to the adjacent movable shells;

[0024] Fixed fan blades distributed in an annular array, having the same number as the swing fan blades, are fixedly connected to the adjacent moving housing, and the swing fan blades are in contact with the adjacent fixed fan blades.

[0025] Furthermore, symmetrically distributed third guiding blocks are fixedly connected to the fixed fan blades, and the third guiding blocks are provided with two inclined surfaces.

[0026] Furthermore, gears are fixedly connected to the swing fan blades, and annular array racks are fixedly connected to the sliding housing. The annular array racks correspond to the swing fan blades one by one, and the gears are engaged with the adjacent racks.

[0027] Furthermore, the deceleration assembly includes:

[0028] A liquid-containing housing, fixedly connected to the adjacent sealing housing;

[0029] A seal, slidably connected inside the adjacent liquid-containing housing. One side of the seal away from the adjacent liquid-containing housing is fixedly connected to the adjacent sliding housing. A spring is provided between the liquid-containing housing and the adjacent seal. The seal is provided with symmetrically distributed liquid through holes, and one of the symmetrically distributed liquid through holes is provided with a check valve.

[0030] Furthermore, the deceleration assembly further includes: a fixed column, fixedly connected inside the adjacent liquid-containing housing. The fixed column passes through the adjacent liquid through hole inside the adjacent seal, and the diameter of the fixed column is smaller than the diameter of the adjacent liquid through hole, and the length of the fixed column is smaller than the moving distance of the seal inside the adjacent liquid-containing housing.

[0031] A process adopted by a xanthate wastewater treatment device includes the following steps:

[0032] Step 1: When wastewater needs to be treated, connect the gas injection port of the external gas injection device and the liquid injection port of the external liquid injection device to the gas guide housing and the liquid spraying pipe respectively, and connect the liquid discharge port of the external liquid discharge device to the first guiding block, so as to complete the preparatory action for wastewater treatment;

[0033] Step 2: After completing the preparatory action for wastewater treatment, inject the required capacity of wastewater, flocculant and coagulant aid into the flotation tank. During this process, stir the wastewater, flocculant and coagulant aid in the flotation tank through a stirrer;

[0034] Step 3: Pollutants in the wastewater form flocs after being treated by the flocculant and coagulant aid. The gas ejected from the gas guide housing (16) changes the gas into bubbles and drives the flocs to move upward, making the flocs float on the liquid surface to form scum, and the cleaner scrapes the scum into the material-containing housing;

[0035] Step Four: During the process of the flocculants floating towards the liquid surface, they pass between the first guiding block and the second guiding block, and the water jet ejected from the liquid outlet on the liquid spraying pipe processes the large bubbles;

[0036] Step Five: When sediments appear in the first guiding block, the telescopic end of the second driving member drives the sliding rod, the sealing shell, and the moving shell to move synchronously through the connecting plate. When the moving shell drives the third guiding block to move until it contacts the scum layer, the third guiding block drives the flocculant and the carried bubbles to disperse around;

[0037] Step Six: After the air outlet shell moves to contact the first guiding block, a relative displacement occurs between the first guiding block and the moving shell, causing the swinging fan blades to swing and the hydraulic oil in the liquid holding shell to flow through the liquid through holes;

[0038] Step Seven: After the inner sides of the sliding shell and the moving shell are fitted, the gas in the fixed shell enters the air outlet shell through the sliding shell and is discharged therefrom. When the gas discharged from the air outlet shell contacts the wastewater, bubbles are formed. The bubbles float and drive the deposited flocculants to float upward synchronously;

[0039] Step Eight: When the telescopic end of the second driving member resets, the sealing shell and the moving shell move upward synchronously, causing the fixed fan blades to salvage the surrounding flocculants;

[0040] Step Nine: After the sealing shell and the moving shell are above the liquid surface, the fixed fan blades reset and swing to the basic state;

[0041] Step Ten: After the wastewater no longer needs to be treated, all electrical equipment can be shut down.

[0042] The beneficial effects of the present invention are as follows: In order to solve the problem that when the air flotation machine manufactures bubbles, the bubbles are likely to fuse into large bubbles, the present invention directly impacts the bubbles by using a high-speed ejected water jet, causing the large bubbles to actively burst, reducing the proportion of large bubbles, ensuring that the sizes of the bubbles in the air flotation process are more consistent, and thus improving the overall treatment efficiency;

[0043] In order to solve the problem that when the slag scraping plate in the air flotation machine contacts the scum layer, the contact between the two is likely to cause the bubbles in the scum layer to burst, resulting in the dropping of some flocculants in the scum layer, the present invention adopts a method of salvaging from the bottom of the pool to "fish out" the deposited flocculants, enabling the deposited flocculants to float on the liquid surface again and be effectively removed;

[0044] In view of the fact that the foam generated during the treatment of xanthate wastewater will overflow into other equipment, affecting the treatment process of other equipment, and the existing method of spraying defoaming agents to remove foam will cause the problem of secondary pollution of the wastewater, the present invention aims to provide a more environmentally friendly foam control method. Specifically, a physical defoaming method is adopted to simulate the way of inserting a "rod" into the foam to break the surface tension of the foam. And when the rod is pulled out, the pulling-out position is actively changed, so that the rod increases the treatment efficiency of the foam during reciprocating movement. This method not only avoids the problem of secondary pollution caused by chemical defoamers, but also improves the effect of foam treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0046] Figure 2 is a schematic diagram of another perspective of the three-dimensional structure of the present invention;

[0047] Figure 3 is a cross-sectional view of the three-dimensional structure of the first guiding block of the present invention;

[0048] Figure 4 is a cross-sectional view of the three-dimensional structure of the air guide shell of the present invention;

[0049] Figure 5 is a cross-sectional view of the three-dimensional structure of the liquid spraying pipe of the present invention;

[0050] Figure 6 is a schematic diagram of the three-dimensional structure of the first driving member and the connecting frame of the present invention;

[0051] Figure 7 is a cross-sectional view of the three-dimensional structure of the fixed shell of the present invention;

[0052] Figure 8 is a cross-sectional view of the three-dimensional structure of the sealing shell of the present invention;

[0053] Figure 9 is a cross-sectional view of the three-dimensional structure of the moving shell of the present invention;

[0054] Figure 10 is a cross-sectional view of the three-dimensional structure of the sliding shell of the present invention;

[0055] Figure 11 is a cross-sectional view of the three-dimensional structure of the liquid storage shell of the present invention.

[0056] In the figure: 10, air flotation tank; 11, stirrer; 12, cleaner; 13, first guiding block; 14, second guiding block; 15, material holding shell; 16, air guiding shell; 17, liquid spraying pipe; 20, first driving member; 21, connecting frame; 22, fixed shell; 23, sealing shell; 24, moving shell; 25, sliding shell; 26, air outlet shell; 30, second driving member; 31, connecting plate; 32, sliding rod; 40, swinging fan blade; 41, fixed fan blade; 42, third guiding block; 50, gear; 51, rack; 60, liquid holding shell; 61, sealing member; 62, liquid through hole; 63, fixed column. Detailed implementation mode

[0057] Although the present invention may be described with respect to a particular application or industry, those skilled in the art will recognize the broader applicability of the present invention. Those of ordinary skill in the art will recognize that terms such as up, down, etc. are used to describe the drawings and do not represent a limitation on the scope of the present invention as defined by the appended claims. Any numerical labels such as first or second are merely illustrative and are not intended to limit the scope of the present invention in any way.

[0058] In order to solve the problem that air bubbles are easily fused into large air bubbles when an air flotation machine manufactures air bubbles, the present invention innovatively introduces a high-speed water jet technology. By precisely impacting large air bubbles, it cleverly causes large air bubbles to quickly break and transform into fine and uniform small air bubbles.

[0059] Embodiment 1: A xanthate wastewater treatment device, as Figures 1 - 5 shown, includes: an air flotation tank 10; a stirrer 11, arranged on one side of the air flotation tank 10; a cleaner 12, arranged on the other side of the air flotation tank 10. A first guiding block 13 and a second guiding block 14 are fixedly connected in the air flotation tank 10, and there is a gap between the first guiding block 13 and the second guiding block 14; a material holding shell 15, fixedly connected to the side of the air flotation tank 10 close to the cleaner 12, and the cleaner 12 is located between the material holding shell 15 and the second guiding block 14; an air guiding shell 16, fixedly connected to the air flotation tank 10. Spray liquid pipes 17 are fixedly connected to the opposite sides of the first guiding block 13 and the second guiding block 14. The spray liquid pipes 17 are provided with a plurality of liquid outlets. The water jets ejected from the liquid outlets on the spray liquid pipes 17 impact the surrounding large air bubbles; an air supply assembly, arranged on the second guiding block 14, for sending gas into the wastewater. Both spray liquid pipes 17 are located above the air guiding shell 16, and the plurality of liquid outlets on the two spray liquid pipes 17 are arranged in a staggered manner, and there is a gap between the water jets ejected from the liquid outlets on the two spray liquid pipes 17.

[0060] In the above scheme, the stirrer 11 is used to stir the wastewater in the flotation tank 10, and the cleaner 12 is used to clean the scum layer in the flotation tank 10. The bubbles between the first guide block 13 and the second guide block 14 are gathered into large bubbles and then pass through the two spray pipes 17. The water jets sprayed from the liquid outlets in the two spray pipes 17 impact the large bubbles (the kinetic energy of the water flow is instantly transferred to the bubble membrane, exceeding the maximum stress that the bubble membrane can withstand. This external force destroys the surface tension balance of the bubble and causes the bubble membrane to rupture), reducing the particle size of the large bubble, so that the large bubble is divided into multiple small bubbles, thereby increasing the capture capacity of the flocculant during the flotation process (the capture capacity refers to the ability of the bubble to attach to and carry the flocculant to float to the liquid surface to form scum during the flotation process).

[0061] like Figure 4 and Figures 6 - 11 As shown, the air supply component includes: a first driving member 20, which is arranged on the second guide block 14; a connecting frame 21, which is fixedly connected to the first driving member 20; a plurality of fixed shells 22, which are all fixedly connected to the connecting frame 21, the fixed shells 22 are fixedly connected and connected with an air supply pipe, the fixed shells 22 are slidably connected with a sealing shell 23, and a one-way valve is arranged in the sealing shell 23; a plurality of movable shells 24, which are the same in number as the fixed shells 22 and are respectively fixedly connected and connected with adjacent sealing shells 23, the movable shells 23 are slidably connected with a sliding shell 25 connected thereto, and the sliding shell 25 is fixedly connected and connected with an air outlet shell 26; a driving component, which is arranged on the connecting frame 21, and is used to drive all the fixed shells 22 to move.

[0062] In the above scheme, the first driving member 20 is an electric slide rail, an electric slider is arranged in the first driving member 20, the connecting frame 21 is fixedly connected to the electric slider in the first driving member 20, there are two fixed shells 22 in the present invention, and the specific number can be adjusted according to actual conditions, the fixed shell 22 is located above the liquid surface of the wastewater, when the sealing shell 23 moves downward, the one-way valve in the sealing shell 23 remains closed, and when the sealing shell 23 moves upward, the one-way valve in the sealing shell 23 is in an open state, the cross-section of the sliding shell 25 is an isosceles trapezoid, and the lower bottom of the isosceles trapezoid of the sliding shell 25 is located on the upper side, the sliding shell 25 is used to drive away the flocs around the sliding shell 25 to ensure the integrity of the flocs, and looking from top to bottom, the air outlet shell 26 is cross-shaped or can be a cross-shaped, and the specific shape can be adjusted according to actual conditions, and adjusting the shape of the air outlet shell 26 is used to adjust its air outlet position and air outlet range.

[0063] like Figures 6 - 8As shown in the figure, the driving assembly includes: a second driving member 30, which is arranged on the connecting frame 21; a connecting plate 31, which is fixedly connected to the second driving member 30. The connecting plate 31 is fixedly connected with sliding rods 32 having the same number as the sealing shells 23. The sliding rods 32 pass through the adjacent fixed shells 22 and are slidably connected thereto. One side of the sliding rods 32 located inside the adjacent fixed shells 22 is fixedly connected to the adjacent sealing shells 23; a plurality of fishing assemblies, having the same number as the moving shells 24, and are respectively arranged inside the adjacent moving shells 24 for fishing sediment; a plurality of deceleration assemblies, having the same number as the moving shells 24, and are respectively arranged inside the adjacent sealing shells 23 for slowing down the moving speed of the sliding shell 25.

[0064] In the above solution, the second driving member 30 is an electric push rod. The telescopic end of the second driving member 30 is fixedly connected to the connecting plate 31. The sliding rod 32 is hermetically and slidably connected to the adjacent fixed shell 22. The lower end of the sliding rod 32 is fixedly connected with a U-shaped frame fixedly connected to the adjacent sealing shell 23.

[0065] As Figures 8 - 10 shown in the figure, the fishing assembly includes: swing fan blades 40 distributed in an annular array, which are all rotatably connected to the adjacent moving shells 24; fixed fan blades 41 distributed in an annular array, having the same number as the swing fan blades 40, and are all fixedly connected to the adjacent moving shells 24. The swing fan blades 40 are in contact with the adjacent fixed fan blades 41. The fixed fan blades 41 are fixedly connected with symmetrically distributed third guiding blocks 42. The third guiding blocks 42 are provided with two inclined surfaces. The swing fan blades 40 are fixedly connected with gears 50. The sliding shell 25 is fixedly connected with an annular array of racks 51. The annular array of racks 51 corresponds to the swing fan blades 40 one by one, and the gears 50 are meshed with the adjacent racks 51.

[0066] In the above solution, the swing fan blades 40 are provided with two symmetrically distributed arc surfaces. When the moving shell 24 and the sliding shell 25 have relative displacement, the annular array of swing fan blades 40 and the annular array of fixed fan blades 41 form a complete circle. The third guiding blocks 42 are used to drive the surrounding flocculant away.

[0067] As Figures 9 - 11 shown in the figure, the deceleration assembly includes: a liquid containing shell 60, which is fixedly connected to the adjacent sealing shell 23; a sealing member 61, which is slidably connected inside the adjacent liquid containing shell 60. One side of the sealing member 61 away from the adjacent liquid containing shell 60 is fixedly connected to the adjacent sliding shell 25. A spring is arranged between the liquid containing shell 60 and the adjacent sealing member 61. The sealing member 61 is provided with symmetrically distributed liquid through holes 62. One of the symmetrically distributed liquid through holes 62 is provided with a check valve. The deceleration assembly further includes: a fixed column 63, which is fixedly connected inside the adjacent liquid containing shell 60. The fixed column 63 passes through the adjacent liquid through hole 62 inside the adjacent sealing member 61, and the diameter of the fixed column 63 is smaller than the diameter of the adjacent liquid through hole 62. The length of the fixed column 63 is smaller than the moving distance of the sealing member 61 inside the adjacent liquid containing shell 60.

[0068] In the above solution, the seal 61 is fixedly connected to the adjacent sliding shell 25 through a connecting rod. When the seal 61 moves upward, the check valve in the liquid passage hole 62 is in an open state. Conversely, when the seal 61 moves downward, the check valve in the liquid passage hole 62 is in a closed state.

[0069] Working principle: When this device is needed to treat xanthate wastewater, the user first connects the gas injection port of the external gas injection device and the liquid injection port of the external liquid injection device to the gas guide shell 16 and the liquid spraying pipe 17 respectively. Subsequently, the user connects the liquid discharge port of the external liquid discharge device to the upper middle side of the first guiding block 13 (the external liquid discharge device is used to discharge the treated clean water).

[0070] After the installation of the external gas injection device and the external liquid discharge device is completed, the user injects wastewater into the right side of the flotation tank 10 (i.e., below the stirrer 11). During the process of injecting wastewater, the user injects flocculants and coagulants in line with the required working capacity. Subsequently, the stirrer 11 stirs the wastewater, flocculants and coagulants on the right side of the flotation tank 10 to increase the mixing efficiency of the flocculants and coagulants with the wastewater. As the wastewater continues to be injected, the wastewater flows upward between the first guiding block 13 and the second guiding block 14.

[0071] When the liquid level of the wastewater reaches the required working liquid level (not exceeding the upper side of the first guiding block 13 after reaching the required working liquid level), the gas injection port of the external gas injection device and the liquid injection port of the external liquid injection device inject gas and liquid into the gas guide shell 16 and the liquid spraying pipe 17 respectively. During the process of the gas guide shell 16 exhausting gas, the gas contacts the wastewater to form bubbles and move upward. The bubbles in the flotation tank 10 move upward between the first guiding block 13 and the second guiding block 14. The pollutants in the wastewater form flocs after being treated by the flocculants and coagulants. The flocs contact the gas in the flotation tank 10 and move upward along between the first guiding block 13 and the second guiding block 14 (the above working principle is the same as that of the existing flotation machine).

[0072] During the process of the bubbles driving the flocs to move upward between the first guiding block 13 and the second guiding block 14, the bubbles contact the adjacent bubbles, thus forming large bubbles. The flocs and the large bubbles contact the water jet ejected from the liquid spraying port of the liquid spraying pipe 17, and the water jet ejected from the liquid spraying port of the liquid spraying pipe 17 breaks the large bubbles to reduce the particle size of the bubbles.

[0073] The bubbles drive the flocs to enter the upper side of the first guiding block 13 between the first guiding block 13 and the second guiding block 14, and float towards the liquid surface under the action of the bubbles carrying the flocs, thus forming a scum layer. Subsequently, the cleaner 12 scrapes the scum layer into the material receiving shell 15, and the material receiving shell 15 collects the scum layer.

[0074] In the prior art, when the slag scraping plate contacts the scum layer (the slag scraping plate corresponds to the cleaner 12 in the present invention), it disturbs the liquid surface and presses the scum layer at the same time. If the bubbles in the scum layer burst at this time, the scum layer formed by the flocculants will separate, causing some flocculants to fall downward to the bottom of the tank (corresponding to the bottom of the air flotation tank 10 in the present invention), resulting in the flocculants not being effectively removed and settling to the bottom of the tank, reducing the removal efficiency of the suspended matter by the air flotation machine and affecting the overall treatment effect. Therefore, the present invention adopts the following statement to solve the above-mentioned problems: First, connect the air outlet of the external air supply device to the air supply pipes on all the fixed shells 22. The first driving member 20 first drives the connecting frame 21 to move to the position required for work, and then the external air supply device sends gas into the fixed shell 22 through the air supply pipe. At this time, the second driving member 30 drives its telescopic part to drive the connecting plate 31 to move downward. The connecting plate 31 drives the two sealing shells 23 to move downward synchronously through the two sliding rods 32 respectively, so that the sealing shell 23 drives the moving shell 24 and its attached parts to move into the air flotation tank 10.

[0075] When the moving shell 24 drives all the swing fan blades 40 and the third guiding block 42 thereon to move until they contact the scum layer in the sliding shell 25 and the air flotation tank 10, a gentle extrusion force is applied to the scum layer below the third guiding block 42 through the two inclined surfaces on the lower side of the third guiding block 42, so that the bubbles in the scum layer will not be directly punctured during the movement of the third guiding block 42, but the flocculants and the carried bubbles will be driven to the surrounding, so as to ensure the integrity of the bubbles in the scum layer. When the swing fan blade 40 contacts the scum layer, through the arc surface thereon, while the bubbles in the scum layer will not be directly punctured during the movement of the swing fan blade 40, the bubbles will be driven to the surrounding.

[0076] When the air outlet shell 26 moves with the moving shell 24 until the lower side of the air outlet shell 26 contacts the upper side of the first guiding block 13, the sealing shell 23 continues to drive the moving shell 24 to slide downward. At this time, a relative displacement occurs between the moving shell 24 and the sliding shell 25. During the sliding of the sliding shell 25, all the racks 51 and the sealing members 61 thereon move upward synchronously relative to the moving shell 24 (the sealing member 61 squeezes the spring during the movement). During the movement of the rack 51, it meshes with the adjacent gear 50, so that the gear 50 drives the swing fan blade 40 to rotate along the adjacent moving shell 24. During the movement of the sealing member 61, the hydraulic oil in the liquid storage shell 60 flows through the two liquid through holes 62 on the sealing member 61. The check valve in one of the liquid through holes 62 is in an open state at this time, and the fixed column 63 gradually inserts into the other liquid through hole 62 during the movement of the sealing member 61.

[0077] After the upper side of the sliding housing 25 fits against the inner side of the moving housing 24, the swinging fan blades 40 have rotated 90° and come into contact with the adjacent fixed fan blades 41. When viewed from above, all the swinging fan blades 40 and the fixed fan blades 41 on the moving housing 24 have formed a "complete circle". The telescopic end of the second driving member 30 stops moving, and the upper side of the sliding housing 25 fits against the inner side of the moving housing 24. The gas pressure inside the fixed housing 22 gradually increases. When the gas pressure inside the fixed housing 22 is sufficient to break through the restriction of the check valve inside the sealing housing 23, the gas enters the sealing housing 23, then enters the moving housing 24 and the sliding housing 25 from the sealing housing 23, and is then discharged from the air outlet housing 26. When the gas discharged from the air outlet housing 26 comes into contact with the wastewater, bubbles are formed. During the upward floating process of the bubbles, they come into contact with the flocculant deposited on the upper side of the first guiding block 13, thereby driving the flocculant upward, enabling the deposited flocculent substances to float on the liquid surface and be effectively removed.

[0078] After treating the deposited flocculent substances for a period of time, switch the moving direction of the telescopic part of the second driving member 30, so that the telescopic part of the second driving member 30 changes from contracting downward to extending upward. During the upward extension process of the telescopic part of the second driving member 30, the two sealing housings 23 are driven to reset upward through the connecting plate 31 and the sliding rod 32. The air outlet housing 26 no longer contacts the upper side of the first guiding block 13. At this time, the spring inside the liquid storage housing 60 drives the sealing member 61 to move downward. During the movement of the sealing member 61, the sliding housing 25 is driven to move synchronously. At this time, the check valve inside the liquid passing hole 62 on one side of the upper part of the sealing member 61 is in a closed state, and the liquid passing hole 62 on the other side of the upper part of the sealing member 61 is blocked by the fixed column 63. Due to the diameter of the fixed column 63 being smaller than the diameter of the adjacent liquid passing hole 62, the amount of liquid flowing through the adjacent liquid passing hole 62 inside the liquid storage housing 60 is reduced, thereby achieving a slow reset of the sealing member 61 and the sliding housing 25. The slow reset of the sliding housing 25 drives the adjacent gear 50 to reset and rotate through the rack 51, thereby achieving the effect of reducing the swinging speed of the gear 50 and the adjacent swinging fan blades 40.

[0079] When the sealing housing 23 and the moving housing 24 move upward, the "complete circle" formed by all the swinging fan blades 40 and the fixed fan blades 41 on the moving housing 24 will redredge the flocculant that has come into contact with the bubbles and deposited on the upper side of the first guiding block 13, increasing the upward movement speed of the flocculant, thereby improving the efficiency of the entire wastewater treatment.

[0080] When the sealing shell 23 drives all the swing blades 40 and the fixed blades 41 thereon to move above the liquid level in the first guide block 13 through the moving shell 24, the seal 61 has moved to a position where the fixed column 63 no longer blocks the adjacent liquid through holes 62, causing an instantaneous change in the flow rate of the liquid through holes 62. As a result, the reset speed of the seal 61 is faster than the previous speed. During the reset process of the seal 61, the sliding shell 25 and all the racks 51 thereon drive the gear 50 to rotate. The gear 50 then drives the adjacent swing blades 40 to rotate rapidly. During the rapid rotation of the swing blades 40, the flocs on them are thrown towards the scum layer, preventing the flocs from sticking to the swing blades 40 and at the same time bringing the settled flocs back into contact with the scum layer, thereby improving the efficiency of wastewater treatment.

[0081] After the moving shell 24 and its attached parts move to Figure 7 the state in, the second driving member 30 stops working. At this time, the user controls the external air supply device to stop injecting gas into the fixed shell 22. When it is necessary to process the deposited flocs again, the above process can be repeated. After the wastewater treatment is completed, all the above-mentioned electrical equipment can be turned off.

[0082] Embodiment 2: On the basis of Embodiment 1, the present invention can also achieve the following actions and effects:

[0083] Working principle: During the treatment of xanthate wastewater, the generation of foam is a common phenomenon. The specific reasons are as follows: Xanthate itself is a surface-active substance, and its molecular structure has a unique amphiphilic property: one end is a hydrophilic group, and the other end is a hydrophobic group. This structure enables xanthate molecules to adsorb at the gas-liquid interface and significantly reduce the surface tension. Therefore, when xanthate exists in wastewater, it acts like a "foam generator" and can easily promote and stabilize a large number of bubbles; during the treatment of xanthate wastewater, when too much foam is generated, it will overflow into other treatment equipment. The entry of foam into other treatment equipment will affect the working efficiency and treatment effect of this equipment. The currently adopted method for removing foam is usually to spray an antifoaming agent into the foam. However, after the antifoaming agent removes the foam, it will come into contact with the wastewater, which will cause the chemical components in the antifoaming agent to remain in the wastewater, increasing the content of organic matter or harmful substances in the treated water body and resulting in secondary pollution. In view of the above problems, the present invention is explained through the following description:

[0084] After the wastewater in the air flotation tank 10 generates foam, the second driving member 30 drives its telescopic portion to pull the connecting plate 31 downward. The connecting plate 31 drives the fixed shell 22 to move downward through the sliding rod 32. The fixed shell 22 then drives all the swing blades 40, fixed blades 41, and the third guiding block 42 thereon to move downward through the moving shell 24. When the two inclined surfaces of the third guiding block 42 come into contact with the foam, the two inclined surfaces of the third guiding block 42 separate the foam and break the surface tension of the foam (this foam is caused by itself during the treatment of xanthate wastewater), causing the foam near this part to gradually dissipate by itself.

[0085] After the destruction of the foam is completed, the second driving member 30 drives its telescopic portion to push the connecting plate 31 upward. The connecting plate 31 drives the fixed shell 22 to move upward through the sliding rod 32. During this process, the first driving member 20 drives the connecting frame 21 to move forward or backward, so that the connecting frame 21 drives the second driving member 30 to move, changing the position where the moving shell 24 moves out. Thus, when the moving shell 24 moves out, it can also process the foam in other parts. When the second driving member 30 and its attached parts move to Figure 6 the state in

[0086] Example 3: On the basis of Example 2, as Figures 1 - 11 shown, the present invention also provides a process used in a xanthate wastewater treatment device, including the following steps:

[0087] Step 1: When it is necessary to treat the wastewater, connect the gas injection port of the external gas injection device and the liquid injection port of the external liquid injection device to the gas guide shell 16 and the liquid spray pipe 17 respectively, and connect the liquid discharge port of the external liquid discharge device to the first guiding block 13, thus completing the preparatory actions for wastewater treatment.

[0088] Step 2: After completing the preparatory actions for wastewater treatment, inject the wastewater, flocculant, and coagulant aid with the required working capacity into the air flotation tank 10. During this process, the stirrer 11 stirs the wastewater, flocculant, and coagulant aid in the air flotation tank 10.

[0089] Step 3: The pollutants in the wastewater form flocs after being treated with the flocculant and coagulant aid. The flocs come into contact with the gas ejected from the gas guide shell 16, causing the gas to change into bubbles and drive the flocs to move upward, making the flocs float on the liquid surface to form scum, and the cleaner 12 scrapes the scum into the material holding shell 15.

[0090] Step 4: During the process of the flocs floating towards the liquid surface, they pass between the first guiding block 13 and the second guiding block 14, and the water jet ejected from the liquid outlet of the liquid spray pipe 17 treats the large bubbles.

[0091] Step Five: When there is sediment in the first guiding block 13, the telescopic end of the second driving member 30 drives the sliding rod 32, the sealing shell 23 and the moving shell 24 to move synchronously through the connecting plate 31. When the moving shell 24 drives the third guiding block 42 to move until it contacts the scum layer, the third guiding block 42 drives the flocculant and the carried bubbles to disperse around;

[0092] Step Six: After the air outlet shell 26 moves to contact the first guiding block 13, a relative displacement occurs between the first guiding block 13 and the moving shell 24, causing the swing fan blade 40 to swing and the hydraulic oil in the liquid storage shell 60 to flow through the liquid through hole 62;

[0093] Step Seven: After the inner sides of the sliding shell 25 and the moving shell 24 are fitted, the gas in the fixed shell 22 enters the air outlet shell 26 through the sliding shell 25 and is discharged therefrom. When the gas discharged from the air outlet shell 26 contacts the wastewater, bubbles are formed. The bubbles float and drive the deposited flocs to float upward synchronously;

[0094] Step Eight: When the telescopic end of the second driving member 30 resets, the sealing shell 23 and the moving shell 24 move upward synchronously, causing the fixed fan blade 41 to salvage the surrounding flocs;

[0095] Step Nine: After the sealing shell 23 and the moving shell 24 are above the liquid level, the fixed fan blade 41 resets and swings to the basic state;

[0096] Step Ten: After the wastewater treatment is no longer required, all electrical equipment can be turned off.

[0097] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the gist of the present invention.

Claims

1. A xanthate wastewater treatment device, characterized in that Including: Air flotation tank (10); Agitator (11), arranged on one side of the air flotation tank (10); Cleaner (12), arranged on the other side of the air flotation tank (10). A first guide block (13) and a second guide block (14) are fixedly connected in the air flotation tank (10), and there is a gap between the first guide block (13) and the second guide block (14); Material holding shell (15), fixedly connected to the side of the air flotation tank (10) close to the cleaner (12), and the cleaner (12) is located between the material holding shell (15) and the second guide block (14); Air guide shell (16), fixedly connected to the air flotation tank (10). Spray pipes (17) are fixedly connected to the opposite sides of the first guide block (13) and the second guide block (14). The spray pipes (17) are provided with a number of liquid outlets, and the water jets ejected from the liquid outlets on the spray pipes (17) impact the surrounding large air bubbles; Air supply assembly, arranged on the second guide block (14) for sending gas into the wastewater; The air supply assembly includes: First driving member (20), arranged on the second guide block (14); Connecting frame (21), fixedly connected to the first driving member (20); A number of fixed shells (22), all fixedly connected to the connecting frame (21). The fixed shells (22) are fixedly connected and communicated with air supply pipes. A sealing shell (23) is slidably connected to the fixed shell (22), and a one-way valve is arranged in the sealing shell (23); A number of moving shells (24), having the same number as the fixed shells (22) and respectively fixedly connected and communicated with the adjacent sealing shells (23). A sliding shell (25) communicated with it is slidably connected to the moving shell (24), and the sliding shell (25) is fixedly connected and communicated with an air outlet shell (26); Driving assembly, arranged on the connecting frame (21) for driving all the fixed shells (22) to move; The driving assembly includes: Second driving member (30), the second driving member (30) is arranged on the connecting frame (21); Connecting plate (31), fixedly connected to the second driving member (30). The connecting plate (31) is fixedly connected with sliding rods (32) having the same number as the sealing shells (23). The sliding rods (32) pass through the adjacent fixed shells (22) and are slidably connected therewith. One side of the sliding rods (32) located in the adjacent fixed shells (22) is fixedly connected to the adjacent sealing shells (23); A number of fishing assemblies, having the same number as the moving shells (24) and respectively arranged in the adjacent moving shells (24) for fishing sediments; A number of deceleration assemblies, having the same number as the moving shells (24) and respectively arranged in the adjacent sealing shells (23) for slowing down the moving speed of the sliding shells (25); The fishing assembly includes: Swinging fan blades (40) distributed in an annular array, all rotatably connected to the adjacent moving shells (24); The fixed fan blades (41) distributed in an annular array, which are consistent in number with the swinging fan blades (40), are fixedly connected to the adjacent moving housing (24), and the swinging fan blades (40) are in contact with the adjacent fixed fan blades (41); The swinging fan blades (40) are fixedly connected with gears (50), the sliding housing (25) is fixedly connected with racks (51) distributed in an annular array, the racks (51) distributed in an annular array correspond to the swinging fan blades (40) one by one, and the gears (50) are meshed with the adjacent racks (51); The deceleration assembly includes: A liquid-containing housing (60), which is fixedly connected to the adjacent sealing housing (23); A seal (61), which is slidably connected inside the adjacent liquid-containing housing (60), one side of the seal (61) away from the adjacent liquid-containing housing (60) is fixedly connected to the adjacent sliding housing (25), a spring is arranged between the liquid-containing housing (60) and the adjacent seal (61), the seal (61) is provided with symmetrically distributed liquid through holes (62), and one of the symmetrically distributed liquid through holes (62) is provided with a check valve; The deceleration assembly further includes: A fixed column (63), which is fixedly connected inside the adjacent liquid-containing housing (60), the fixed column (63) penetrates through the adjacent liquid through hole (62) inside the adjacent seal (61), and the diameter of the fixed column (63) is smaller than the diameter of the adjacent liquid through hole (62), and the length of the fixed column (63) is smaller than the moving distance of the seal (61) inside the adjacent liquid-containing housing (60).

2. The xanthate wastewater treatment device according to claim 1, characterized in that: Both of the two liquid spray pipes (17) are located above the air guide housing (16), a plurality of liquid outlets on the two liquid spray pipes (17) are distributed in a staggered manner, and there is a gap between the water jets ejected from the liquid outlets on the two liquid spray pipes (17).

3. The xanthate wastewater treatment device according to claim 1, characterized in that: The fixed fan blades (41) are fixedly connected with symmetrically distributed third guiding blocks (42), and the third guiding blocks (42) are provided with two inclined surfaces.

4. A xanthate wastewater treatment process is completed in cooperation with a xanthate wastewater treatment device as described in claim 1, characterized in that, It includes the following steps: Step 1: When wastewater needs to be treated, connect the air injection port of the external air injection device and the liquid injection port of the external liquid injection device to the air guide housing (16) and the liquid spray pipe (17) respectively, and connect the liquid discharge port of the external liquid discharge device to the first guiding block (13), so as to complete the preparation action for wastewater treatment; Step 2: After completing the preparation action for wastewater treatment, inject the wastewater, flocculant and coagulant aid with the required working capacity into the air flotation tank (10), and stir the wastewater, flocculant and coagulant aid in the air flotation tank (10) through the stirrer (11) during this process; Step 3: The pollutants in the wastewater form flocs after being treated by the flocculant and coagulant aid. The flocs come into contact with the gas ejected from the air guide housing (16), causing the gas to change into bubbles and driving the flocs to move upward, so that the flocs float on the liquid surface to form scum, and the cleaner (12) scrapes the scum into the material-containing housing (15); Step 4: During the process of the flocs floating towards the liquid surface, they pass between the first guiding block (13) and the second guiding block (14), and the water jets ejected from the liquid outlets on the liquid spray pipe (17) treat the large bubbles; Step Five: When sediment appears in the first guiding block (13), the telescopic end of the second driving member (30) drives the sliding rod (32), the sealing shell (23) and the moving shell (24) to move synchronously through the connecting plate (31). When the moving shell (24) drives the third guiding block (42) to move until it contacts the scum layer, the third guiding block (42) drives the flocculant and the carried bubbles to disperse around; Step Six: After the air outlet shell (26) moves to contact the first guiding block (13), a relative displacement occurs between the first guiding block (13) and the moving shell (24), causing the swinging fan blades (40) to swing and the hydraulic oil in the liquid storage shell (60) to flow through the liquid through holes (62); Step Seven: After the inner sides of the sliding shell (25) and the moving shell (24) are fitted, the gas in the fixed shell (22) enters the air outlet shell (26) through the sliding shell (25) and is discharged therefrom. When the gas discharged from the air outlet shell (26) contacts the wastewater, bubbles are formed. The bubbles float and drive the deposited flocculants to float upward synchronously; Step Eight: When the telescopic end of the second driving member (30) resets, the sealing shell (23) and the moving shell (24) move upward synchronously, causing the fixed fan blades (41) to salvage the surrounding flocculants; Step Nine: After the sealing shell (23) and the moving shell (24) are above the liquid level, the fixed fan blades (41) reset and swing to the basic state; Step Ten: After the wastewater treatment is no longer required, all electrical equipment can be turned off.

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