A treatment device for fiber printing and dyeing wastewater

Abstract

The present application relates to a kind of processing equipment for fiber printing and dyeing wastewater, it relates to water pollution treatment technical field, the present application includes evaporator group, evaporator group includes steam compressor, circulating pump, condensing preheater, condensate pump, vacuum pump, discharge screw pump and evaporating tank, evaporating tank is set with defoaming mechanism in upper part, defoaming mechanism is used to break the bubble generated in the evaporation process of waste water in evaporating tank, power is provided by the liquid flow circulation of evaporator group, and the fixed frame with aeration net is collected by rotation, the upper part bubble of evaporating tank, in the process of bubble transport, the rotation of auger and the structure cooperation of fixed frame realize the preliminary breakage of bubble, the bubble in the inner cavity of collection frame is spun with collection frame simultaneously high-speed, under the action of centrifugal force, from the through-hole of the outer surface of collection frame, realize the secondary breakage of bubble, while the turbulence generated by the rotation of turbine at the bottom of collection frame, further strengthen the breakage effect of bubble in collection frame.

Description

Technical Field

[0001] This invention relates to the field of water pollution treatment technology, and specifically to a treatment device for fiber dyeing and printing wastewater. Background Technology

[0002] In the fiber dyeing process, a large amount of inorganic salts must be added to solidify the dye onto the fabric. These inorganic salts are almost entirely left in the wastewater. Conventional biological, chemical, and membrane treatments cannot separate the salts. Therefore, MVR evaporators are used to completely evaporate water molecules into distilled water through thermal separation technology, allowing the salts to crystallize and precipitate out, thus truly achieving complete separation of salt and water. The wastewater from fiber dyeing contains a large amount of organic pollutants such as surfactants, leveling agents, and dispersants, which will generate a large amount of highly stable foam during high-temperature negative pressure evaporation. If foam control fails, it will directly enter the downstream steam compressor with the secondary steam, causing impeller corrosion, liquid hammer, surge shutdown, and problems such as excessive chemical oxygen demand in condensate and organic pollution of crystallized salts that cannot be recycled.

[0003] Existing conventional defoaming methods are mainly divided into two categories: chemical defoaming and static mechanical defoaming. Chemical defoaming breaks bubbles by adding defoamers to the feed liquid. Although it is simple to operate, the defoamers will continuously increase the oxygen demand load of the wastewater, exacerbating the difficulty of subsequent water treatment. Static mechanical defoaming often uses structures such as baffles, wire mesh demisters, and fixed swirl plates. It relies on the passive collision between the foam and the fixed parts to break the bubbles. There is no cost of adding chemicals. However, surfactants and auxiliaries in dyeing and printing wastewater will generate a large amount of stable foam during evaporation. The defoaming effect of existing structures is limited. Excessive foam entrainment will directly lead to a decrease in evaporation efficiency, feed liquid entering the steam system, causing compressor corrosion, substandard condensate, and frequent shutdown of the main unit.

[0004] To address the aforementioned technical deficiencies, a solution is proposed. Summary of the Invention

[0005] This invention provides a treatment device for fiber dyeing and printing wastewater, which solves the problems of difficult defoaming causing a large amount of foam to enter the evaporator, resulting in compressor corrosion, substandard condensate, and frequent shutdown of the main unit.

[0006] To achieve efficient defoaming, extend equipment lifespan, and improve wastewater treatment efficiency, thereby reducing foam entering the evaporator, this invention achieves this through the following technical solution: A treatment device for fiber dyeing wastewater, comprising an evaporator group, wherein the evaporator group includes a steam compressor, a circulating pump, a condenser preheater, a condensate pump, a vacuum pump, a discharge screw pump, and an evaporator tank, wherein a defoaming mechanism is provided at the upper part of the evaporator tank, the defoaming mechanism being used to break up bubbles generated by the wastewater in the evaporator tank during the evaporation process; The defoaming mechanism includes a driving unit and a defoaming unit. The defoaming unit includes a collection frame. The outer surface of the collection frame is provided with several through holes. The inner cavity of the collection frame is connected to a fixed frame. The outer surface of the fixed frame is fixedly connected with a ventilation net. The end of the fixed frame away from the collection frame is fixedly connected to a collection hopper. An auger is rotatably connected inside the fixed frame. The connecting shaft of the auger passes through to the end of the collection hopper away from the fixed frame. The outer surface of the collection hopper is provided with a feed port. The evaporator is equipped with an efficiency-enhancing mechanism, which is used to move the fixed frame up and down and drive the auger to rotate.

[0007] Furthermore, the drive unit includes a mounting frame for mounting a turbine. The mounting frame is fixedly installed inside the evaporator, and the turbine is fixedly installed on the inner wall of the mounting frame. The turbine's shaft is arranged in a vertical direction, and the collection frame is fixedly connected to the top of the shaft. The efficiency enhancement mechanism includes a positioning rail, which is arranged in a ring on the inner wall of the evaporator. The positioning rail is fixedly connected to the evaporator and extends in a sawtooth shape along its circumference. The inner wall of the positioning rail is provided with an installation groove, and a number of teeth are provided in the installation groove. The teeth are arranged along the inner wall of the installation groove and are fixedly connected to the installation groove. A gear is fixedly connected to one end of the connecting shaft near the collecting hopper, and the gear meshes with the teeth.

[0008] Furthermore, a rotating cylinder is fixedly connected to the top of the collection frame, the rotating cylinder extends through the collection frame, and a material conveying port is opened on the outer surface of the rotating cylinder at the location inside the collection frame.

[0009] Furthermore, a collection tube is vertically inserted through the top of the rotating drum, and a feed hole is opened on the side of the collection tube. A fixing frame is set in the feed hole and fixedly connected to the collection tube. The feed hole is connected to the rotating drum through the bottom of the collection pipe, and the collection hopper is connected to the inner cavity of the collection frame through the fixed frame, the collection pipe, and the rotating drum in sequence.

[0010] Furthermore, the inner wall of the rotating drum is provided with a groove, and the outer surface of the collecting tube is integrally formed with a protrusion, which is embedded and slidably connected with the groove.

[0011] Furthermore, a connecting block is fixedly connected to the top of the collecting pipe, and a fixed limiting ring is fixedly connected to the top of the inner wall of the evaporator. A limiting groove is opened in the inner wall of the fixed limiting ring, and a slider is provided in the limiting groove. The slider is slidably connected to the fixed limiting ring, and a telescopic plate is rotatably connected between the slider and the connecting block.

[0012] Furthermore, the straight line between the slider and the connecting block is the first axis, and the straight line horizontally perpendicular to the first axis is the second axis; The telescopic plate is inclined along the second axis and is located above the fixed frame. The telescopic plate is used to push the foam to the fixed frame during rotation.

[0013] The present invention has the following beneficial effects: This equipment for treating fiber dyeing wastewater utilizes the liquid circulation of the evaporator group to power the turbine rotation, ensuring the sealing effect of the evaporator group. The rotation drives a fixed frame with a ventilation mesh to collect foam from the upper part of the evaporator tank. Simultaneously, this rotation, in conjunction with a geared, undulating positioning rail, enables vertical movement and auger rotation, collecting and transporting foam within a designated area. The foam is then transferred to a collection frame with holes on all sides. During foam transport, the auger rotation, in conjunction with the structure of the fixed frame, initially breaks down the foam. Foam entering the inner cavity of the collection frame rotates synchronously at high speed with the frame and, under centrifugal force, is thrown out through the through-holes on the outer surface of the collection frame, achieving secondary foam breakage. The turbine, located at the bottom of the collection frame, generates turbulence that further enhances the foam breakage effect within the collection frame. The telescopic plate ensures smooth axial rotation and vertical movement of the collection pipe, and its inclined placement during circumferential rotation pushes the foam to the fixed frame, further improving foam collection efficiency. Through multi-stage defoaming operations, highly efficient foam breakage is achieved.

[0014] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from another angle; Figure 3 This is a schematic diagram of the internal structure of the evaporator of the present invention; Figure 4 This is a schematic diagram of the structure of the evaporator tank of the present invention, in which an installation frame is fixedly connected inside. Figure 5 This is a schematic diagram of the structure of the present invention, in which a slider is slidably connected inside the fixed limiting ring; Figure 6 This is a schematic diagram of the structure of the collection tube of the present invention with a protrusion fixedly connected thereon; Figure 7 This is a schematic diagram of the structure of the present invention, in which a ventilation mesh is fixedly connected to the outside of the fixed frame; Figure 8 This is a schematic diagram of the structure of the present invention, in which an auger is rotatably connected within a fixed frame; Figure 9 This is a schematic diagram of the structure of the positioning rail of the present invention, which is fixedly connected with teeth. Figure 10 for Figure 9 A magnified schematic diagram of the structure at point A in the middle.

[0016] In the diagram: 1. Evaporator assembly; 101. Evaporator tank; 2. Mounting frame; 3. Turbine; 4. Rotating shaft; 5. Collection frame; 6. Rotating drum; 7. Collection pipe; 8. Fixed limiting ring; 9. Sliding block; 10. Telescopic plate; 11. Protrusion; 12. Groove; 13. Feed port; 14. Fixed frame; 15. Screwdriver; 1501. Connecting shaft; 16. Collection hopper; 17. Gear; 18. Positioning rail; 19. Tooth; 20. Connecting block; 21. Ventilation net. Detailed Implementation

[0017] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0018] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0019] Please see Figures 1-10 The present invention provides a technical solution: a treatment device for fiber dyeing wastewater, including an evaporator group 1, the evaporator group including a steam compressor, a circulating pump, a condenser preheater, a condensate pump, a vacuum pump, a discharge screw pump and an evaporator tank 101, an antifoaming mechanism is provided at the upper part of the evaporator tank 101, the antifoaming mechanism is used to break the bubbles generated by the wastewater in the evaporator tank during the evaporation process.

[0020] The steam compressor, circulating pump, condenser preheater, condensate pump, vacuum pump, discharge screw pump and evaporator 1 of the evaporator group 1 work together with the evaporator tank 101 to complete the evaporation treatment of fiber printing and dyeing wastewater. The structure and working principle of the steam compressor, circulating pump, condenser preheater, condensate pump, vacuum pump, discharge screw pump and evaporator tank 101 in the evaporator group 1 are all existing technologies.

[0021] The defoaming mechanism includes a drive unit and a defoaming unit. The defoaming unit includes a collection frame 5. The outer surface of the collection frame 5 is provided with several through holes. The inner cavity of the collection frame 5 is connected to a fixed frame 14. A ventilation net 21 is fixedly connected to the outer surface of the fixed frame 14. A collection hopper 16 is fixedly connected to the end of the fixed frame 14 away from the collection frame 5. An auger 15 is rotatably connected inside the fixed frame 14. The connecting shaft 1501 of the auger 15 passes through to the end of the collection hopper 16 away from the fixed frame 14. A feed inlet is provided on the outer surface of the collection hopper 16. An efficiency enhancement mechanism is provided inside the evaporator 101. The enhancement mechanism is used to move the fixed frame 14 up and down and drive the auger 15 to rotate.

[0022] The drive unit includes a mounting frame 2 for mounting a turbine 3. The mounting frame 2 is fixedly installed inside the evaporator 101, and the turbine 3 is fixedly installed on the inner wall of the mounting frame 2. The turbine 3's rotating shaft 4 is arranged in a vertical direction, and the collection frame 5 is fixedly connected to the top of the rotating shaft 4.

[0023] The rotating shaft 4 is fixed at the center of the turbine 3. The turbine uses the working principle of generating rotation by liquid flow, which is existing technology and will not be described in detail below.

[0024] The liquid circulation of the evaporator group 1 drives the turbine 3 installed in the mounting frame 2 inside the evaporator tank 101 to rotate. The rotating shaft 4 of the turbine 3 synchronously drives the collecting frame 5 to rotate. The rotating frame 5 drives the rotating drum 6 to rotate at the same time. The collecting pipe 7 rotates with the rotating drum 6 through the engagement of the protrusion 11 and the groove 12. The collecting pipe 7 rotates circumferentially. The fixed frame 14 rotates circumferentially synchronously with the collecting pipe 7. During the rotation of the fixed frame 14, the foam generated during the evaporation of the wastewater in the upper part of the evaporator tank 101 is collected into the inner cavity of the fixed frame 14 through the ventilation net 21 on the outer surface of the fixed frame 14 and the feed port on the collecting hopper 16.

[0025] The efficiency enhancement mechanism includes a positioning rail 18, which is arranged in a ring on the inner wall of the evaporator 101. The positioning rail 18 is fixedly connected to the evaporator 101, and extends in a sawtooth shape along its circumference. The inner wall of the positioning rail 18 is provided with an installation groove, and a number of teeth 19 are provided in the installation groove. The teeth 19 are arranged along the inner wall of the installation groove and are fixedly connected to the installation groove. A gear 17 is fixedly connected to the end of the connecting shaft 1501 near the collection hopper 16, and the gear 17 meshes with the teeth 19.

[0026] The teeth 17 are evenly arranged on one side of the inner wall of the mounting groove of the positioning rail 18.

[0027] When gear 17 meshes with teeth 19, connecting shaft 1501 moves with the gear, and fixed frame 14 moves with connecting shaft 1501. Through the sawtooth undulating trajectory of positioning rail 18, fixed frame 14 and collecting pipe 7 move up and down in the vertical direction to expand the foam collection range. At the same time, the meshing rotation of gear 17 drives auger 15 to rotate synchronously in fixed frame 14, and transports the foam collected in fixed frame 14 through collecting hopper 16, fixed frame 14, the feed hole of collecting pipe 7, and feed port 13 of rotating drum 6 to the inner cavity of collecting frame 5. During the foam transport process, the rotation of auger 15 and the structure of fixed frame 14 cooperate to achieve the initial breaking of foam.

[0028] A rotating cylinder 6 is fixedly connected to the top of the collecting frame 5. The rotating cylinder 6 passes through the collecting frame 5. A feeding port 13 is opened on the outer surface of the rotating cylinder 6 inside the collecting frame 5. A collecting pipe 7 is vertically inserted through the top of the rotating cylinder 6. A feeding hole is opened on the side of the collecting pipe 7. A fixed frame 14 is set in the feeding hole and is fixedly connected to the collecting pipe 7. The feeding hole is connected to the rotating cylinder 6 through the bottom of the collecting pipe 7. The collecting hopper 16 is connected to the inner cavity of the collecting frame 5 through the fixed frame 14, the collecting pipe 7, and the rotating cylinder 6 in sequence. A groove 12 is opened on the inner wall of the rotating cylinder 6. A protrusion 11 is integrally formed on the outer surface of the collecting pipe 7. The protrusion 11 and the groove 12 are fitted and slidably connected.

[0029] When the collecting tube 7 moves up and down, the protrusion 11 integrally formed on its outer surface engages and slides with the groove 12 on the inner wall of the rotating cylinder 6, ensuring the transmission stability of circumferential rotation and vertical movement.

[0030] A connecting block 20 is fixedly connected to the top of the collecting pipe 7. A fixed limiting ring 8 is fixedly connected to the top of the inner wall of the evaporator 101. A limiting groove is opened in the inner wall of the fixed limiting ring 8. A slider 9 is provided in the limiting groove. The slider 9 is slidably connected to the fixed limiting ring 8. A telescopic plate 10 is rotatably connected between the slider 9 and the connecting block 20. The straight line between the slider 9 and the connecting block 20 is the first axis. The straight line horizontally perpendicular to the first axis is the second axis. The telescopic plate 10 is inclined along the direction of the second axis. The telescopic plate 10 is located above the fixed frame 14. The telescopic plate 10 is used to push the foam to the fixed frame 14 during rotation.

[0031] The telescopic plate 10 consists of two cuboid plates with different outer diameters nested together, and it extends and retracts as the distance between the slider 9 and the connecting block 20 changes.

[0032] The connecting block 20 fixed at the top of the collecting pipe 7 is linked with the slider 9 in the limiting groove of the fixed limiting ring 8 on the top of the inner wall of the evaporator 101 through the telescopic plate 10. This ensures the smoothness of the circumferential rotation and up-down movement of the collecting pipe 7. In addition, the telescopic plate 10, which is inclined along the second axis, pushes the foam in the evaporator 101 to the fixed frame 14 during rotation, further improving the foam collection efficiency. The foam entering the inner cavity of the collecting frame 5 rotates at high speed synchronously with the collecting frame 5. Under the action of centrifugal force, it is thrown out from several through holes on the outer surface of the collecting frame 5, realizing the secondary breakage of the foam. At the same time, the turbine 3 is located at the bottom of the collecting frame 5. The turbulence generated by its rotation further enhances the foam breakage effect in the collecting frame 5. Finally, through multi-stage defoaming operation, the efficient breakage of bubbles generated during the evaporation of wastewater in the evaporator 101 is achieved, ensuring the stable and efficient operation of the fiber printing and dyeing wastewater evaporation treatment process.

[0033] Working Principle: When this equipment for treating fiber dyeing wastewater is in operation, the steam compressor, circulating pump, condenser preheater, condensate pump, vacuum pump, and discharge screw pump of evaporator group 1 work in conjunction with evaporator tank 101 to complete the evaporation treatment of the fiber dyeing wastewater. Simultaneously, the liquid circulation of evaporator group 1 drives the turbine 3 installed in the mounting frame 2 inside evaporator tank 101 to rotate. The rotating shaft 4 of turbine 3 synchronously drives the collection frame 5 to rotate. The rotation of collection frame 5 simultaneously drives the rotating drum 6 to rotate. The collection pipe 7 rotates with the rotating drum 6 through the engagement of protrusion 11 and groove 12, and the collection pipe 7 rotates circumferentially. The fixing frame 14 rotates circumferentially synchronously with the collection pipe 7. During the rotation of frame 14, the foam generated during the evaporation of wastewater in the upper part of evaporator 101 is collected into the inner cavity of frame 14 through the ventilation net 21 on the outer surface of frame 14 and the feed inlet on collection hopper 16. Simultaneously, when gear 17 and teeth 19 mesh, connecting shaft 1501 moves with gear, and frame 14 moves with connecting shaft 1501. Through the sawtooth undulating trajectory of positioning rail 18, frame 14 and collection pipe 7 move up and down vertically, expanding the foam collection range. At the same time, the meshing rotation of gear 17 drives auger 15 to rotate synchronously inside frame 14, collecting the foam in frame 14 through collection hopper 16. 6. The feed inlet of the fixed frame 14 and the feed outlet 13 of the collecting pipe 7 are conveyed to the inner cavity of the collecting frame 5. During the foam conveying process, the rotation of the auger 15 and the structure of the fixed frame 14 cooperate to achieve the initial breaking of the foam. When the collecting pipe 7 moves up and down, the integrally formed protrusion 11 on its outer surface is engaged and slid with the groove 12 on the inner wall of the rotating drum 6 to ensure the transmission stability of circumferential rotation and vertical movement. The connecting block 20 fixed at the top of the collecting pipe 7 is linked with the slider 9 in the limiting groove of the limiting ring 8 fixed at the top of the inner wall of the evaporator 101 through the telescopic plate 10, which not only ensures the smoothness of the circumferential rotation and vertical movement of the collecting pipe 7, but also through the linkage of the first connecting block 20 fixed at the top of the collecting pipe 7 and the slider 9 in the limiting groove of the limiting ring 8 fixed at the top of the inner wall of the evaporator 101. This ensures the smoothness of the circumferential rotation and vertical movement of the collecting pipe 7, and also through the linkage of the first connecting block 20 fixed at the top of the collecting pipe 7 and the slider 9 in the limiting groove of the limiting ring 8 fixed at the top of the inner wall of the evaporator 101. The telescopic plate 10, which is inclined along the two axes, pushes the foam in the evaporator 101 to the fixed frame 14 during rotation, further improving the foam collection efficiency. The foam entering the inner cavity of the collection frame 5 rotates synchronously with the collection frame 5 at high speed. Under the action of centrifugal force, it is thrown out from several through holes on the outer surface of the collection frame 5, realizing the secondary breakage of the foam. At the same time, the turbine 3 is located at the bottom of the collection frame 5, and the turbulence generated by its rotation further enhances the foam breaking effect in the collection frame 5. Finally, through multi-stage defoaming operations, the efficient breaking of bubbles generated during the evaporation of wastewater in the evaporator 101 is achieved, ensuring the stable and efficient operation of the fiber dyeing wastewater evaporation treatment process.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A treatment device for fiber dyeing and printing wastewater, comprising an evaporator assembly (1), said evaporator assembly including a steam compressor, a circulating pump, a condenser preheater, a condensate pump, a vacuum pump, a discharge screw pump, and an evaporator tank (101), characterized in that: An antifoaming mechanism is provided at the upper part of the evaporator (101). The antifoaming mechanism is used to break up the bubbles generated by the wastewater in the evaporator during the evaporation process. The defoaming mechanism includes a drive unit and a defoaming unit. The defoaming unit includes a collection frame (5). The outer surface of the collection frame (5) is provided with several through holes. The inner cavity of the collection frame (5) is connected to a fixed frame (14). The outer surface of the fixed frame (14) is fixedly connected with a ventilation net (21). The end of the fixed frame (14) away from the collection frame (5) is fixedly connected with a collection hopper (16). An auger (15) is rotatably connected inside the fixed frame (14). The connecting shaft (1501) of the auger (15) passes through to the end of the collection hopper (16) away from the fixed frame (14). The outer surface of the collection hopper (16) is provided with a feed port. An efficiency-enhancing mechanism is provided inside the evaporator (101). The mechanism is used to move the fixed frame (14) up and down and drive the auger (15) to rotate.

2. The equipment for treating fiber dyeing and printing wastewater according to claim 1, characterized in that: The drive unit includes a mounting frame (2) for mounting a turbine (3). The mounting frame (2) is fixedly installed inside the evaporator (101). The turbine (3) is fixedly installed on the inner wall of the mounting frame (2), and the rotating shaft (4) of the turbine (3) is arranged in a vertical direction. The collection frame (5) is fixedly connected to the top of the rotating shaft (4). The efficiency enhancement mechanism includes a positioning rail (18), which is arranged in a ring on the inner wall of the evaporator (101). The positioning rail (18) is fixedly connected to the evaporator (101), and the positioning rail (18) extends in a sawtooth shape along its circumference. The inner wall of the positioning rail (18) is provided with an installation groove, and a number of teeth (19) are provided in the installation groove. The teeth (19) are arranged along the inner wall of the installation groove and are fixedly connected to the installation groove. A gear (17) is fixedly connected to one end of the connecting shaft (1501) near the collecting hopper (16), and the gear (17) meshes with the teeth (19).

3. The equipment for treating fiber dyeing and printing wastewater according to claim 1, characterized in that: The top of the collection frame (5) is fixedly connected to a rotating cylinder (6), which runs through the collection frame (5). A material conveying port (13) is opened on the outer surface of the rotating cylinder (6) inside the collection frame (5).

4. The equipment for treating fiber dyeing and printing wastewater according to claim 3, characterized in that: The top of the rotating drum (6) is vertically connected to a collection tube (7), and a feed hole is opened on the side of the collection tube (7). A fixing frame (14) is set in the feed hole and is fixedly connected to the collection tube (7). The feed hole is connected to the rotating drum (6) through the bottom of the collecting pipe (7), and the collecting hopper (16) is connected to the inner cavity of the collecting frame (5) through the fixed frame (14), the collecting pipe (7), and the rotating drum (6) in sequence.

5. The equipment for treating fiber dyeing and printing wastewater according to claim 4, characterized in that: The inner wall of the rotating drum (6) is provided with a groove (12), and the outer surface of the collecting tube (7) is integrally formed with a protrusion (11). The protrusion (11) and the groove (12) are fitted together and slidably connected.

6. The equipment for treating fiber dyeing and printing wastewater according to claim 5, characterized in that: The top of the collecting pipe (7) is fixedly connected to a connecting block (20), and the top of the inner wall of the evaporator (101) is fixedly connected to a fixed limiting ring (8). A limiting groove is opened on the inner wall of the fixed limiting ring (8), and a slider (9) is provided in the limiting groove. The slider (9) is slidably connected to the fixed limiting ring (8), and a telescopic plate (10) is rotatably connected between the slider (9) and the connecting block (20).

7. The equipment for treating fiber dyeing and printing wastewater according to claim 6, characterized in that: The straight line between the slider (9) and the connecting block (20) is the first axis, and the straight line that is horizontal and perpendicular to the first axis is the second axis; The telescopic plate (10) is inclined along the second axis direction. The telescopic plate (10) is located above the fixed frame (14). The telescopic plate (10) is used to push the foam to the fixed frame (14) during rotation.

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