Wastewater treatment device for poplar chemi-mechanical pulp production

Abstract

The invention relates to the technical field of wastewater treatment, in particular to a wastewater treatment device for poplar chemi-mechanical pulp production. Comprising a frame body, the frame body is fixedly connected with a treatment shell, the treatment shell is provided with a motor, and a first cavity and a second cavity are formed in the treatment shell; the rotating frame is rotationally connected to the treatment shell, and the rotating frame is located in the first cavity; the rotating shaft is rotationally connected to the treatment shell, and a rotating column is arranged in the first cavity; the gas distribution frame is fixedly connected to the rotating column, and the gas distribution frame is provided with first spray heads which are arranged at intervals; and the gas inlet mechanism is arranged on one side of the treatment shell. Air is supplied to the first spray head through the air inlet mechanism, so that bubbles sprayed out of the first spray head form a vertical bubble curtain, and when wastewater passes through the vertical bubble curtain, the wastewater is in full contact with the bubbles, so that floc in the wastewater floats upwards conveniently, and the wastewater treatment effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and particularly relates to a wastewater treatment device for the production of poplar chemimechanical pulp. Background Art

[0002] Poplar chemimechanical pulp is a raw material used in the production of high-quality printing paper, writing paper, and some special papers. Poplar chemimechanical pulp is produced from wood by combining chemical pretreatment and mechanical grinding. During the production process of poplar chemimechanical pulp, first, the poplar is subjected to certain chemical treatment to soften the lignin and remove part of the hemicellulose. The wood after chemical treatment is sent into a refiner, and under high-pressure conditions, the wood is decomposed into single fibers or fine fiber bundles through physical grinding to form a pulp that can be used for papermaking.

[0003] During the chemical treatment of wood, wastewater containing dissolved organic matter, residual chemicals, and other pollutants is generated. Such wastewater needs to be purified before being discharged. Due to the wood raw materials, such wastewater contains a large amount of fine fibers and hydrophobic lignin colloids. Therefore, the air flotation method is usually used to treat such wastewater. However, the existing treatment devices only arrange air outlets at the bottom, and then use the free upward floating of bubbles to contact the impurities in the wastewater. During the process, the bubbles are only affected by buoyancy and water flow, resulting in a single movement mode of the bubbles. This leads to a small contact range between the wastewater and the bubbles, thus resulting in poor wastewater treatment effect. To solve the problems existing in the above-mentioned prior art, the present application proposes a wastewater treatment device for the production of poplar chemimechanical pulp. Summary of the Invention

[0004] In order to overcome the disadvantages mentioned in the above technical background, the present invention provides a wastewater treatment device for the production of poplar chemimechanical pulp.

[0005] The technical implementation scheme of the present invention is as follows: A wastewater treatment device for the production of poplar chemimechanical pulp, comprising:

[0006] A frame body, the frame body is fixedly connected with a treatment shell, the treatment shell is provided with a motor, and a first cavity and a second cavity are arranged inside the treatment shell;

[0007] A rotating frame, rotatably connected to the treatment shell, and the rotating frame is located inside the first cavity;

[0008] A rotating shaft, rotatably connected to the treatment shell, the rotating shaft is fixedly connected with the output shaft of the motor, a rotating column is arranged inside the first cavity, and both the rotating frame and the rotating shaft are connected to the rotating column through universal joints;

[0009] An air distribution frame, fixedly connected to the rotating column, and the air distribution frame is provided with first nozzles arranged at intervals;

[0010] An air intake mechanism is provided on one side of the processing shell close to the motor and is used to supply air to the first nozzle, so as to perform air flotation treatment on the medium in the first cavity.

[0011] The air distribution mechanisms are multiple and arranged in an annular array on the air distribution frame, and are used to change the degree of air flotation treatment on the medium at various locations in the first cavity.

[0012] Preferably, there is an included angle between the axis of the processing shell and the axis of the air distribution frame, which is used to disturb the medium passing through adjacent areas by the air distribution frame.

[0013] Preferably, the air intake mechanism includes:

[0014] A first pipe is fixedly connected to one side of the processing shell close to the motor. The processing shell is provided with a third cavity, and the rotating shaft is provided with a chamber. The chamber on the first pipe and the rotating shaft is communicated with the third cavity. A second pipe is fixedly connected between the rotating shaft and the rotating column, and the chamber on the rotating shaft is communicated with the second pipe. The rotating column is provided with a fourth cavity, and the second pipe is communicated with the fourth cavity. The air distribution frame is provided with an annular array of guiding channels, the guiding channels are communicated with the fourth cavity, and the first nozzles are communicated with the corresponding guiding channels.

[0015] Preferably, the axis of the first nozzle is spatially perpendicular to the axis of the air distribution frame, which is used to make the gas ejected from all the first nozzles form an "air curtain" so as to fully contact with the medium.

[0016] Preferably, the air distribution mechanism includes:

[0017] A sliding pipe is slidably connected to the air distribution frame, and the air distribution frame is fixedly connected with second nozzles arranged at intervals.

[0018] A guiding wheel is rotatably connected to the sliding pipe. The processing shell is provided with a guiding groove, which is used to guide the guiding wheel. The air distribution frame is provided with a fifth cavity, the sliding pipe and the guiding channels are both communicated with the fifth cavity, and the sliding pipe slides in the fifth cavity. An elastic element is fixedly connected between the sliding pipe and the air distribution frame.

[0019] Preferably, a deformable layer is arranged on the outer side of the guiding wheel, which is used to move stably in the guiding groove.

[0020] Preferably, the guiding groove is composed of a straight groove and an arc groove, which is used to change the relative position between the sliding pipe and the air distribution frame.

[0021] Preferably, it further includes:

[0022] A rotating disk is rotatably connected to the processing shell. The rotating disk is provided with a first limiting groove in an annular array, and the first limiting groove is used to limit the rotating frame.

[0023] The disturbing components are arranged in an annular array and are all disposed on the rotating disk for disturbing the medium in adjacent areas. The disturbing components include:

[0024] A fixed shell is fixedly connected to the rotating disk;

[0025] A limiting rod is slidably connected to the fixed shell, and the limiting rod is spherically connected to the air distribution frame;

[0026] A first rod is fixedly connected to the fixed shell;

[0027] A second rod is disposed in the fixed shell. The second rod is rotatably connected to the limiting rod, and an interception net is fixedly connected between the first rod and the second rod.

[0028] Preferably, the interception net is made of a soft material and is used to change its size with the change of the distance between the first rod and the second rod.

[0029] Preferably, the fixed shell is provided with a second limiting groove, and the second limiting groove is used to limit the adjacent second rods, so as to twist the interception net.

[0030] Compared with the prior art, the present invention has at least the following beneficial effects: The present invention supplies gas to the first nozzle through the air inlet mechanism, so that the bubbles ejected from the first nozzle form a "vertical bubble curtain". When the wastewater passes through the "vertical bubble curtain", the wastewater is fully contacted with the bubbles, which is convenient for the floating of flocs in the wastewater and improves the treatment effect of the wastewater; The guiding groove is used to limit the guiding wheel, and the sliding tube drives the adjacent second nozzles to move together, so as to change the generation position of the bubbles, and the position of generating bubbles in the first cavity continuously changes, so as to increase the degree of chaos of the distribution of bubbles in the first cavity, improve the contact probability between the bubbles and the flocs in the wastewater, and accelerate the separation of the flocs in the wastewater, thereby improving the treatment effect and efficiency of the wastewater; Different directions of forces are applied to the wastewater in adjacent areas through the intercepting net with gradually changing shapes, so that the wastewater circulates in the processing shell, increasing the diversity of the movement of the wastewater and improving the dispersion degree of the flocs in the wastewater, thereby increasing the contact probability between the flocs in the wastewater and the bubbles, and finally improving the treatment effect and efficiency of the wastewater; The enlarged bubbles are cut and "crushed" by the rotating interception net, so that the bubbles become smaller again, increasing the contact area between the flocs in the wastewater and the bubbles and improving the treatment effect and efficiency of the wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1Schematic three-dimensional structure diagram of the whole of the present invention;

[0032] Figure 2 Schematic three-dimensional structure diagram of the rotating frame and the air distribution frame of the present invention;

[0033] Figure 3 Schematic cross-sectional view of the three-dimensional structure of the frame body and the rotating frame of the present invention;

[0034] Figure 4 Schematic cross-sectional view of the three-dimensional structure of the rotating shaft and the air distribution frame of the present invention;

[0035] Figure 5 Schematic cross-sectional view of the three-dimensional structure of the rotating column and the air distribution frame of the present invention;

[0036] Figure 6 Schematic cross-sectional view of the three-dimensional structure of the processing shell and the rotating disk of the present invention;

[0037] Figure 7 Exploded view of the three-dimensional structure of the fixed shell of the present invention and the parts thereon.

[0038] Reference signs in the drawings: 1: frame body, 2: processing shell, 3: motor, 4: first cavity, 5: second cavity, 6: rotating frame, 7: rotating shaft, 8: rotating column, 9: air distribution frame, 10: first nozzle, 1101: first pipe, 1102: third cavity, 1103: second pipe, 1104: fourth cavity, 1105: guiding channel, 1201: sliding pipe, 1202: second nozzle, 1203: guiding wheel, 1204: guiding groove, 1205: fifth cavity, 1206: elastic element, 1301: rotating disk, 1302: first limiting groove, 1303: fixed shell, 1304: limiting rod, 1305: first rod, 1306: second rod, 1307: intercepting net, 14: second limiting groove. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0040] As Figures 1-3As shown in the figure, a wastewater treatment device for the production of poplar chemimechanical pulp is proposed to solve the problem that when the existing wastewater treatment device treats wastewater, it only simply allows the wastewater to flow through the air flotation area, enabling the flowing wastewater to freely contact the rising bubbles. During this process, the bubbles are only affected by buoyancy and water flow, resulting in a single movement mode of the bubbles. Consequently, the contact range between the wastewater and the bubbles is small, leading to poor wastewater treatment effect. The device includes: a frame body 1, the frame body 1 is fixedly connected with a treatment shell 2, the treatment shell 2 is fixedly connected and communicated with a water inlet pipe, a drainage pipe, and a slag discharge pipe, the treatment shell 2 is equipped with a motor 3, a first cavity 4 and a second cavity 5 are arranged inside the treatment shell 2, the water inlet pipe and the drainage pipe on the treatment shell 2 are both communicated with the first cavity 4, and the slag discharge pipe on the treatment shell 2 is communicated with the second cavity 5; a rotating frame 6, rotatably connected to the treatment shell 2, the rotating frame 6 is located inside the first cavity 4; a rotating shaft 7, rotatably connected to the treatment shell 2, the rotating shaft 7 is fixedly connected to the output shaft of the motor 3, a rotating column 8 is arranged inside the first cavity 4, and both the rotating frame 6 and the rotating shaft 7 are connected to the rotating column 8 through universal joints; an air distribution frame 9, fixedly connected to the rotating column 8, there is an included angle between the axis of the treatment shell 2 and the axis of the air distribution frame 9, which is used to disturb the medium passing through the adjacent area by the air distribution frame 9, the air distribution frame 9 is equipped with first nozzles 10 arranged at intervals, and the axis of the first nozzles 10 is perpendicular to the axis of the air distribution frame 9 in space, which is used to form an "air curtain" with the gas ejected from all the first nozzles 10, so as to fully contact the medium; an air intake mechanism, arranged on one side of the treatment shell 2 close to the motor 3, which is used to supply air to the first nozzles 10, thereby performing air flotation treatment on the medium inside the first cavity 4, and the air intake mechanism is connected to an external gas production device (the gas production device is an existing technology, and its working principle will not be elaborated here); an air distribution mechanism, which is a plurality of annular arrays, and is all arranged on the air distribution frame 9, and is used to change the degree of air flotation treatment of the medium at various positions inside the first cavity 4.

[0041] In the above solution, the cross-sectional shape of the treatment shell 2 is "circular", the water inlet pipe, the drainage pipe, and the slag discharge pipe on the treatment shell 2 are respectively located on the left side, the middle of the lower side, and the right part of the lower side. Solenoid valves are installed inside the water inlet pipe, the drainage pipe, and the slag discharge pipe on the treatment shell 2. A scraping device (the scraping device is an existing technology, and its working principle will not be elaborated here) is arranged on the upper part of the treatment shell 2, which is used to transfer the generated waste foam to the second cavity 5. There is an included angle of 70° between the axis of the air distribution frame 9 and the horizontal plane, that is, the air distribution frame 9 is in an inclined state as a whole. When using this device, the output shaft of the motor 3 drives the rotating shaft 7 to rotate counterclockwise (such as Figure 3Taking the left view direction as an example, the rotating shaft 7 drives the rotating column 8 to rotate counterclockwise together through the universal joint on the right side. The rotating column 8 drives the air distribution frame 9 to rotate counterclockwise together (the rotating column 8 drives the rotating frame 6 to rotate counterclockwise together through the universal joint on the right side, and the rotating frame 6 rotates relative to the treatment shell 2). The air distribution frame 9 drives the first nozzle 10 to rotate counterclockwise together. Then, the air inlet mechanism supplies air to the first nozzle 10, so that the bubbles ejected from the first nozzle 10 form a "vertical bubble curtain". Subsequently, the wastewater is injected into the first cavity 4 through the water inlet pipe on the treatment shell 2. When the wastewater passes through the "vertical bubble curtain", the wastewater is fully contacted with the bubbles, so that it is convenient for the flocs in the wastewater (described by flocs instead of microfibers and hydrophobic lignin colloids) to float upward (forming waste foam floating on the upper part of the first cavity 4), improving the treatment effect of the wastewater. At the same time, the rotating air distribution frame 9 will also stir the wastewater in the adjacent area, increasing the degree of chaos of the flocs in the wastewater and the contact probability between the flocs and the bubbles, thereby improving the treatment effect of the wastewater.

[0042] During the wastewater treatment process, the scraping device is used to transfer the waste foam to the second cavity 5. The treated wastewater is discharged through the drain pipe on the treatment shell 2, and the waste foam is discharged through the slag discharge pipe on the treatment shell 2. As the wastewater continues to be injected into the first cavity 4, the wastewater is continuously treated until all the wastewater is treated, and then the motor 3 is turned off and the air supply to the first nozzle 10 is stopped.

[0043] As Figure 2 、 Figure 4 and Figure 5 shown, the air inlet mechanism includes: a first pipe 1101, fixedly connected to one side of the treatment shell 2 close to the motor 3. The treatment shell 2 is provided with a third cavity 1102, and the rotating shaft 7 is provided with a chamber. Both the first pipe 1101 and the chamber on the rotating shaft 7 communicate with the third cavity 1102. A second pipe 1103 is fixedly connected between the rotating shaft 7 and the rotating column 8, and the chamber on the rotating shaft 7 communicates with the second pipe 1103. The rotating column 8 is provided with a fourth cavity 1104, and the second pipe 1103 communicates with the fourth cavity 1104. The air distribution frame 9 is provided with an annular array of guiding channels 1105, and the guiding channels 1105 communicate with the fourth cavity 1104. The first nozzle 10 communicates with the corresponding guiding channel 1105.

[0044] In the above solution, the first pipe 1101 is connected to an external gas-producing device. The second pipe 1103 is a flexible pipe. When the external gas-producing device works, air enters the third cavity 1102 through the first pipe 1101. Then the air flows through the chamber on the rotating shaft 7, the second pipe 1103, the fourth cavity 1104, and the guiding channel 1105. Finally, the air is discharged through the adjacent first nozzle 10, and thus enters the first cavity 4 in the form of dense small bubbles and contacts the wastewater in the adjacent area, thereby performing air flotation treatment on the wastewater, causing the flocs in the wastewater to combine with the small bubbles to form waste foam, and finally separating from the wastewater.

[0045] As Figures 3-5 shown, the air distribution mechanism includes: a sliding pipe 1201, slidably connected to the air distribution frame 9, and the air distribution frame 9 is fixedly connected with second nozzles 1202 arranged at intervals; a guiding wheel 1203, rotatably connected to the sliding pipe 1201. The treatment shell 2 is provided with a guiding groove 1204, and the guiding groove 1204 is used to guide the guiding wheel 1203. The guiding groove 1204 is composed of a straight groove and an arc groove, and is used to change the relative position between the sliding pipe 1201 and the air distribution frame 9. A soft layer is arranged on the outer side of the guiding wheel 1203 for stable movement in the guiding groove 1204. The air distribution frame 9 is provided with a fifth cavity 1205, and both the sliding pipe 1201 and the guiding channel 1105 communicate with the fifth cavity 1205, and the sliding pipe 1201 slides in the fifth cavity 1205. An elastic element 1206 is fixedly connected between the sliding pipe 1201 and the air distribution frame 9.

[0046] In the above solution, the axis of the second nozzle 1202 is parallel to the axis of the adjacent first nozzle 10. The guiding groove 1204 is in an overall inclined state. The shortest distance between the arc groove on the guiding groove 1204 and the axis of the rotating column 8 first decreases and then increases from bottom to top. The straight groove on the guiding groove 1204 is a horizontal straight groove and is located in the upper part. The deformable layer on the outer side of the guiding wheel 1203 is made of rubber material. The elastic element 1206 is a spring, and the elastic element 1206 is always in a compressed state, used to apply pressure to the adjacent sliding pipe 1201. During the process of treating the wastewater, after the air enters the guiding channel 1105, the air then enters the fifth cavity 1205, then the air enters the sliding pipe 1201, and finally the air is discharged in the form of bubbles through the adjacent second nozzles 1202, thereby treating the wastewater in the adjacent area.

[0047] During the counterclockwise rotation of the air distribution frame 9, the air distribution frame 9 drives the sliding pipe 1201 to rotate counterclockwise together (now taking Figure 4Taking the movement of the lower-middle sliding pipe 1201 and the parts thereon as an example, at this time, the compression amount of the adjacent elastic element 1206 is the smallest. The sliding pipe 1201 drives the guide wheel 1203 to rotate counterclockwise together. The guide wheel 1203 rolls in the arc-shaped groove on the guide groove 1204. As the air distribution frame 9 continues to rotate counterclockwise, the sliding pipe 1201 is squeezed by the arc-shaped groove on the guide groove 1204 and starts to move into the air distribution frame 9. The elastic element 1206 is further compressed. The sliding pipe 1201 drives the second nozzle 1202 thereon to move together, thus changing the generation position of the bubbles, making the position of the bubbles generated in the first cavity 4 change continuously, thereby increasing the degree of chaos of the distribution of the bubbles in the first cavity 4, improving the contact probability between the bubbles and the flocs in the wastewater, accelerating the separation of the flocs in the wastewater, and further improving the treatment effect and efficiency of the wastewater.

[0048] As the air distribution frame 9 continues to rotate counterclockwise, the guide wheel 1203 continuously rolls along the guide groove 1204, and the sliding pipe 1201 and the air distribution frame 9 continuously undergo relative sliding. The sliding pipe 1201 first slides into the air distribution frame 9 and then protrudes out of the air distribution frame 9. In this way, the sliding pipe 1201 with diverse movements continuously changes the air outlet position of the second nozzle 1202 thereon, thereby making the relative movement between the flocs and the bubbles in the wastewater chaotic, improving the contact probability between the two, and further improving the treatment effect of the wastewater. This cycle repeats until the treatment of the wastewater is completed.

[0049] As Figures 2-4 、 Figure 6 and Figure 7 As shown in

[0050] In the above solution, through holes are arranged at intervals on the rotating disk 1301 for passing wastewater. The rotating shaft 7 passes through the through hole in the middle of the rotating disk 1301. The first limiting groove 1302 is a circular blind hole. There are multiple L-shaped rods on the rotating frame 6. The L-shaped rods on the rotating frame 6 extend into adjacent through holes on the rotating disk 1301 to drive the rotating disk 1301 to rotate. The second limiting groove 14 is an inclined groove, and the second limiting groove 14 slopes upward gradually from left to right (taking the Figure 7 front view direction as an example and describing the second limiting groove 14 on the upper fixing shell 1303). The distance between the air distribution frame 9 and the rotating disk 1301 decreases gradually from top to bottom. During the counterclockwise rotation of the rotating frame 6, the L-shaped rods on the rotating frame 6 squeeze the adjacent first limiting grooves 1302, so that the rotating disk 1301 rotates counterclockwise. The rotation speed of the rotating disk 1301 is the same as the rotation speed of the air distribution frame 9. The rotating disk 1301 drives the fixing shell 1303 to rotate counterclockwise together. The fixing shell 1303 drives the adjacent limiting rod 1304, the first rod 1305 and the second rod 1306 to rotate counterclockwise together. The first rod 1305 and the adjacent second rod 1306 jointly drive the adjacent intercepting net 1307 to rotate counterclockwise together (revolve around the axis of the rotating disk 1301). During the process, the intercepting net 1307 drives the wastewater in the adjacent area to rotate counterclockwise, so that the wastewater circulates counterclockwise in the treatment shell 2 (taking the Figure 6 left view direction as an example), increasing the degree of chaos of the movement of the wastewater, improving the dispersion degree of the flocs in the wastewater, increasing the contact probability between the flocs and the bubbles in the wastewater, and further improving the treatment effect and efficiency of the wastewater.

[0051] During the counterclockwise rotation of the air distribution frame 9 and the fixing shell 1303, the air distribution frame 9 and the fixing shell 1303 jointly drive the limiting rod 1304 to rotate counterclockwise together. Now taking Figure 6 the movement of the upper fixing shell 1303 and the parts on it as an example, with the counterclockwise rotation of the air distribution frame 9 and the fixing shell 1303, that is, the limiting rod 1304 moves downward relative to the air distribution frame 9. The air distribution frame 9 squeezes the limiting rod 1304, making the limiting rod 1304 move leftward. The limiting rod 1304 drives the adjacent second rod 1306 to move leftward together. The second rod 1306 slides along the adjacent second limiting groove 14. Under the limiting action of the second limiting groove 14, the second rod 1306 rotates counterclockwise (rotates on its own) along the axis of the adjacent fixing shell 1303. In this way, the adjacent intercepting net 1307 twists, changing the force applied to the wastewater in the adjacent area, prompting the wastewater to move in different directions locally, further increasing the diversity of the movement of the wastewater, increasing the contact probability between the flocs and the bubbles in the wastewater, and further improving the treatment effect and efficiency of the wastewater treatment.

[0052] During the counterclockwise rotation of the interception net 1307, the interception net 1307 simultaneously cuts the bubbles in the adjacent area. As the bubbles move upward under the action of buoyancy, the extrusion pressure of the wastewater on the bubbles gradually decreases during the process, and the bubbles gradually become larger. At this time, the rotating interception net 1307 cuts and "crushes" the enlarged bubbles, making the bubbles smaller again, thereby increasing the contact area between the flocs and the bubbles in the wastewater and improving the effect and efficiency of wastewater treatment.

[0053] The above has introduced the present application in detail. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A wastewater treatment device for the production of poplar chemimechanical pulp, characterized in that It includes: A frame body (1), the frame body (1) is fixedly connected with a processing shell (2), the processing shell (2) is equipped with a motor (3), and a first cavity (4) and a second cavity (5) are arranged in the processing shell (2); A rotating frame (6), rotatably connected to the processing shell (2), and the rotating frame (6) is located in the first cavity (4); A rotating shaft (7), rotatably connected to the processing shell (2), the rotating shaft (7) is fixedly connected with the output shaft of the motor (3), a rotating column (8) is arranged in the first cavity (4), and both the rotating frame (6) and the rotating shaft (7) are connected to the rotating column (8) through universal joints; A gas distribution frame (9), fixedly connected to the rotating column (8), and the gas distribution frame (9) is equipped with first spray nozzles (10) arranged at intervals; An air inlet mechanism, arranged on one side of the processing shell (2) close to the motor (3), for supplying gas to the first spray nozzles (10), so as to perform air flotation treatment on the medium in the first cavity (4); The gas distribution mechanism is provided in the gas distribution frame (9) and is an annular array of multiple ones, and is used to change the degree of air flotation treatment of the medium in various parts of the first cavity (4).

2. The wastewater treatment device for poplar chemi-mechanical pulp production according to claim 1, characterized in that, There is an included angle between the axis of the processing shell (2) and the axis of the gas distribution frame (9), which is used to disturb the medium passing through the adjacent areas by the gas distribution frame (9).

3. The wastewater treatment device for poplar chemical pulp production according to claim 1, characterized in that The air inlet mechanism includes: A first pipe (1101), fixedly connected to one side of the processing shell (2) close to the motor (3), the processing shell (2) is provided with a third cavity (1102), the rotating shaft (7) is provided with a chamber, the chamber on the first pipe (1101) and the rotating shaft (7) is communicated with the third cavity (1102), a second pipe (1103) is fixedly connected between the rotating shaft (7) and the rotating column (8), the chamber on the rotating shaft (7) is communicated with the second pipe (1103), the rotating column (8) is provided with a fourth cavity (1104), the second pipe (1103) is communicated with the fourth cavity (1104), the gas distribution frame (9) is provided with an annular array of guiding channels (1105), the guiding channels (1105) are communicated with the fourth cavity (1104), and the first spray nozzles (10) are communicated with the corresponding guiding channels (1105).

4. The wastewater treatment device for poplar chemi-mechanical pulp production according to claim 1, characterized in that, The axis of the first spray nozzle (10) is perpendicular to the axis of the gas distribution frame (9) in space, so as to form an "air curtain" with the gas sprayed by all the first spray nozzles (10), so as to fully contact the medium.

5. The wastewater treatment device for the production of poplar chemical pulp according to claim 3, characterized in that, The gas distribution mechanism includes: A sliding pipe (1201), slidably connected to the gas distribution frame (9), and the gas distribution frame (9) is fixedly connected with second spray nozzles (1202) arranged at intervals; The guide wheel (1203) is rotatably connected to the sliding tube (1201). The processing shell (2) is provided with a guide groove (1204) for guiding the guide wheel (1203). The air distribution frame (9) is provided with a fifth cavity (1205). Both the sliding tube (1201) and the guide channel (1105) communicate with the fifth cavity (1205), and the sliding tube (1201) slides within the fifth cavity (1205). An elastic element (1206) is fixedly connected between the sliding tube (1201) and the air distribution frame (9).

6. The wastewater treatment device for the production of poplar chemimechanical pulp according to claim 5, characterized in that, A deformable layer is arranged on the outer side of the guide wheel (1203) for stable movement within the guide groove (1204).

7. The wastewater treatment device for poplar chemi-mechanical pulp production according to claim 5, characterized in that, The guide groove (1204) is composed of a straight groove and an arc groove for changing the relative position between the sliding tube (1201) and the air distribution frame (9).

8. The wastewater treatment device for poplar chemical pulp production according to claim 2, characterized in that It further includes: A rotating disk (1301) is rotatably connected to the processing shell (2). The rotating disk (1301) is provided with a first limiting groove (1302) arranged in an annular array for limiting the rotating frame (6). The disturbance components, which are arranged in an annular array, are all arranged on the rotating disk (1301) for disturbing the medium in adjacent areas. The disturbance components include: A fixed shell (1303) is fixedly connected to the rotating disk (1301). A limiting rod (1304) is slidably connected to the fixed shell (1303), and the limiting rod (1304) is ball-jointed to the air distribution frame (9). A first rod (1305) is fixedly connected to the fixed shell (1303). A second rod (1306) is arranged in the fixed shell (1303). The second rod (1306) is rotatably connected to the limiting rod (1304). An intercepting net (1307) is fixedly connected between the first rod (1305) and the second rod (1306).

9. The wastewater treatment device for poplar chemi-mechanical pulp production according to claim 8, characterized in that, The intercepting net (1307) is made of a soft material and is used to change its size with the change of the distance between the first rod (1305) and the second rod (1306).

10. The wastewater treatment device for the production of poplar chemimechanical pulp according to claim 8, characterized in that, The fixed shell (1303) is provided with a second limiting groove (14) for limiting the adjacent second rods (1306), so that the intercepting net (1307) is distorted.

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