Polyester low stretch yarn printing and dyeing wastewater treatment device

Abstract

The invention relates to the technical field of water pollution treatment, in particular to a polyester low stretch yarn printing and dyeing wastewater treatment device. According to the technical scheme, the pretreatment assembly comprises an auxiliary connecting pipe, a main flow pipeline is fixedly installed at one end of the auxiliary connecting pipe, spiral flow deflectors are fixedly installed in the main flow pipeline, printing and dyeing wastewater flowing along the spiral flow deflectors flows in the main flow pipeline, a filter cartridge is fixedly installed in the auxiliary connecting pipe, and the spiral flow deflectors are fixedly installed in the filter cartridge; the filter cartridge is of a trumpet-shaped structure, and the diameter of the filter cartridge is gradually increased from the head end to the tail end. Printing and dyeing wastewater spirally flows along the auxiliary connecting pipe, and fiber fragments and agglomerated slurry on the outer wall of the filter cartridge are driven by the printing and dyeing wastewater to continuously move, so that the fiber fragments and the agglomerated slurry are brought to the tail end of the filter cartridge, and meanwhile, when the printing and dyeing wastewater flows through the filter holes along the tangential direction of the filter cartridge, blockages in the filter holes of the filter cartridge are brought out; the filtering effect of the filter cartridge is prevented from being influenced.

Description

Technical Field

[0001] The present invention relates to the technical field of water pollution treatment, and particularly relates to a polyester drawn texturing yarn printing and dyeing wastewater treatment device. Background Art

[0002] Polyester drawn texturing yarn printing and dyeing wastewater refers to the wastewater generated during the printing and dyeing production process. Its composition is complex and the treatment is difficult. The disperse dyes used in the printing and dyeing process will make the wastewater have obvious color and high chromaticity, seriously affecting the sensory properties of the water body. In actual treatment, polyester drawn texturing yarn printing and dyeing wastewater usually adopts a process combining multiple treatment methods to achieve better treatment effects and make the wastewater meet the discharge standards or be reused.

[0003] In the patent document with the publication number of CN117682709B, a printing and dyeing wastewater treatment machine is proposed. Through the rotation of the motor, the impurity removal rod will rotate continuously in the filter tank, and relying on the scraping blades on the outer wall of the impurity removal rod, the larger suspended matters on the surface of the filter net can be removed. On the basis of the filtration of the filter net, an electric impurity removal function is added, which can not only prevent the suspended matters from blocking the filter net, but also quickly clean up the suspended matters, ensuring the efficiency of sewage discharge.

[0004] However, when the scraping blades remove the larger suspended matters on the surface of the filter net, there is a situation where the suspended matters are pressed into the holes of the filter net and the suspended matters are compacted, which instead further causes blockage, affects the passing rate of the filter net, and reduces the efficiency of sewage treatment. Summary of the Invention

[0005] The purpose of the present invention is to propose a polyester drawn texturing yarn printing and dyeing wastewater treatment device for the problem of blockage caused by suspended matters being pressed into the holes of the filter net in the background art.

[0006] The technical solution of the present invention: A polyester drawn texturing yarn printing and dyeing wastewater treatment device includes a sewage treatment tank, an air flotation tank and a coagulation tank are arranged inside the sewage treatment tank, and a dissolved air release device is fixedly installed inside the coagulation tank; A pre-treatment component, including a secondary connecting pipe, one end of the secondary connecting pipe is fixedly installed with a main flow pipe, a spiral guide vane is fixedly installed inside the main flow pipe, printing and dyeing wastewater flowing along the spiral guide vane flows inside the main flow pipe, a filter cylinder is fixedly installed inside the secondary connecting pipe, the filter cylinder adopts a flared structure with a gradually increasing diameter, and a converging plate is fixedly installed on the outer wall of the filter cylinder; The other end of the secondary connecting pipe is communicated with the air flotation tank inside the sewage treatment tank, and the printing and dyeing wastewater flows spirally on the outer wall of the filter cylinder. There are filter hole areas and non-filter hole areas on the filter cylinder, and the non-filter hole area is located at the bottom of the filter cylinder and close to the sewage treatment tank; An exhaust component is arranged inside the filter cartridge, and a processing control component is fixedly installed at one end of the main flow pipeline away from the auxiliary connecting pipe.

[0007] Optionally, the converging plate is located above the axis of the filter cartridge. The top of the converging plate is fixedly connected to the auxiliary connecting pipe. The converging plate adopts a spiral structure of one-sixth of a circle. From the opening to the end, the cross-sectional area of the converging plate gradually decreases.

[0008] Optionally, a converging cylinder is fixedly installed inside the auxiliary connecting pipe. The converging cylinder penetrates the filter cartridge. The outer arc surface of the converging cylinder is fixedly connected to the converging plate. An opening is provided at the connection between the converging cylinder and the converging plate.

[0009] Optionally, a support cylinder is fixedly installed at the end with a smaller diameter of the filter cartridge. The support cylinder is fixedly connected to the spiral guide vane. A support ring is fixedly installed at the end with a larger diameter of the filter cartridge. The outer arc surface of the support ring is fixedly connected to the auxiliary connecting pipe.

[0010] Optionally, the exhaust component includes a three-part support plate. A three-part support plate is fixedly installed inside the filter cartridge. An impeller is rotatably connected to the side of the three-part support plate. A vertical spiral blade for conveying fiber debris and agglomerated slurry in the printed and dyed wastewater is rotatably connected inside the converging cylinder. A transmission member is arranged between the impeller and the vertical spiral blade.

[0011] Optionally, the end of the converging plate faces the vertical spiral blade. An inclined discharge slide plate is fixedly installed on the outer arc surface of the converging cylinder and near the top. An outlet is provided at the connection between the converging cylinder and the discharge slide plate.

[0012] Optionally, the transmission member includes a first bevel gear, a second bevel gear, and a rotating rod. The first bevel gear is fixedly installed at the end of the rotating shaft of the impeller. The center of the vertical spiral blade is fixedly connected to the rotating rod. The second bevel gear is fixedly installed at the end of the rotating rod. The first bevel gear is meshed with the second bevel gear. Both the first bevel gear and the second bevel gear are located inside the three-part support plate.

[0013] Optionally, the processing control component includes a wastewater inlet pipe. The end of the wastewater inlet pipe is fixedly connected to the main flow pipeline. A push-type flow rate valve is fixedly installed in the middle of the wastewater inlet pipe. An impact plate is rotatably connected inside the wastewater inlet pipe. A reset counterweight is fixedly installed at the bottom of the impact plate. An adjustment member is arranged between the reset counterweight and the push-type flow rate valve.

[0014] Optionally, a guiding support plate is fixedly installed at the bottom of the waste water inlet pipe. An adjusting rod is slidably connected inside the guiding support plate. A wedge block is fixedly installed at the end of the adjusting rod. The inclined surface of the wedge block contacts the pressing device of the pressing type flow rate valve. An avoidance assembly is arranged between the end of the adjusting rod and the reset counterweight.

[0015] Optionally, the avoidance assembly includes an intermediate plate and a sliding column. The intermediate plate is fixedly installed on the side of the reset counterweight facing the pressing type flow rate valve. A vertical groove is formed in the middle of the intermediate plate. The sliding column slides in the vertical groove. Both ends of the sliding column are fixedly connected to the adjusting rod.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects: In the present invention, the printing and dyeing waste water flows spirally along the auxiliary connecting pipe, and the fiber fragments and agglomerated slurries on the outer wall of the filter cylinder are driven by the printing and dyeing waste water to continue moving, so as to bring the fiber fragments and agglomerated slurries to the tail end of the filter cylinder. At the same time, when the water flow of the printing and dyeing waste water along the tangential direction of the filter cylinder passes through the filter holes, the blockages in the filter holes of the filter cylinder are carried out, so as to avoid affecting the filtering effect of the filter cylinder.

[0017] Furthermore, the filtered printing and dyeing waste water impacts the impeller to make it rotate, so that the vertical spiral blades rotate to lift the fiber fragments and agglomerated slurries in the gathering cylinder to the discharge slide plate and discharge them. Since the vertical spiral blades are vertical, the water in the fiber fragments and agglomerated slurries flows down along the vertical spiral blades due to gravity to separate solids and liquids, so as to avoid the fiber fragments and agglomerated slurries accumulating in the gathering cylinder and affecting the filtering of the filter cylinder.

[0018] Furthermore, the printing and dyeing waste water impacts the impacted plate to make it deflect. The position of the wedge block is adjusted by using the deflection angle of the impacted plate. The inclined surface of the wedge block squeezes the pressing device of the pressing type flow rate valve, so as to adjust the flow rate of the printing and dyeing waste water in the pressing type flow rate valve, so as to reduce the impact force of the printing and dyeing waste water on the filter cylinder and prevent the filter cylinder from deforming and being unable to intercept fiber fragments and agglomerated slurries. Description of the Drawings

[0019] Figure 1 The overall structural schematic diagram of the present invention is given; Figure 2 The sectional schematic diagram of the sewage treatment tank structure of the present invention is given; Figure 3 The structural schematic diagram of the gathering cylinder of the present invention is given; Figure 4 The sectional schematic diagram of the main pipeline structure of the present invention is given; Figure 5 The structural schematic diagram of the filter cylinder of the present invention is given; Figure 6 The structural schematic diagram of the three-part support plate of the present invention is given; Figure 7 For Figure 6 Schematic diagram of the first bevel gear structure of part A; Figure 8 Schematic sectional view of the gathering cylinder structure; Figure 9 Schematic diagram of the impact-receiving plate structure; Figure 10 Schematic diagram of the wedge block structure.

[0020] Reference numerals: 1, sewage treatment tank; 2, air flotation tank; 3, coagulation tank; 4, pre-treatment component; 41, main pipeline; 42, spiral guide vane; 43, auxiliary connecting pipe; 44, filter cartridge; 45, support cylinder; 46, gathering plate; 47, support ring; 48, gathering cylinder; 5, discharge component; 51, impeller; 52, three-way support plate; 53, first bevel gear; 54, second bevel gear; 55, rotating rod; 56, vertical spiral blade; 57, discharge port; 58, discharge slide plate; 6, treatment control component; 61, waste water inlet pipe; 62, pressing type flow rate valve; 63, impact-receiving plate; 64, reset counterweight; 65, intermediate plate; 66, adjusting rod; 67, guiding support plate; 68, wedge block; 7, dissolved air releaser. Detailed implementation manners

[0021] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Generally, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents the selected embodiments of the present invention.

[0023] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Embodiment 1 This embodiment provides a polyester drawn texturing yarn printing and dyeing wastewater treatment device. As Figure 1 and Figure 2 shown, it includes a sewage treatment tank 1. An air flotation tank 2 and a coagulation tank 3 are provided inside the sewage treatment tank 1. A guide plate is fixedly installed inside the sewage treatment tank 1, and the guide plate is located between the air flotation tank 2 and the coagulation tank 3. A dissolved air release device 7 is fixedly installed inside the coagulation tank 3. By adding chemicals into the air flotation tank 2, small particles in the printing and dyeing wastewater in the air flotation tank 2 are coagulated, and air flotation separation is carried out by using the dissolved air release device 7.

[0027] As Figure 4 and Figure 5 shown, a pre-treatment component 4 is provided at the head of the sewage treatment tank 1. The pre-treatment component 4 includes a secondary connecting pipe 43. One end of the secondary connecting pipe 43 is fixedly installed with a main flow pipe 41, and the other end of the secondary connecting pipe 43 is communicated with the air flotation tank 2 inside the sewage treatment tank 1. A spiral guide vane 42 is fixedly installed inside the main flow pipe 41. Printing and dyeing wastewater flowing along the spiral guide vane 42 flows inside the main flow pipe 41. The printing and dyeing wastewater in the main flow pipe 41 does not exceed one-half of the volume of the main flow pipe 41, and the printing and dyeing wastewater flows in a spiral shape along the spiral guide vane 42.

[0028] A filter cartridge 44 is fixedly installed inside the secondary connecting pipe 43. The filter cartridge 44 adopts a horn-shaped structure. There are filter hole areas and non-filter hole areas on the filter cartridge 44. The non-filter hole area is located at the bottom of the filter cartridge 44 and close to the sewage treatment tank 1, and the diameter of the filter cartridge 44 gradually increases. The printing and dyeing wastewater filters large-volume objects in the wastewater, such as fiber fragments and agglomerated slurries. After the limit fragments and agglomerated slurries are intercepted by the filter cartridge 44, due to inertia, the printing and dyeing wastewater continues to flow along the secondary connecting pipe 43, and the limit fragments and agglomerated slurries on the outer wall of the filter cartridge 44 are driven by the printing and dyeing wastewater to continue to move, so as to bring the fiber fragments and agglomerated slurries to the tail end of the filter cartridge 44.

[0029] When the water flow of the printing and dyeing wastewater along the tangential direction of the filter cartridge 44 passes through the filter holes, the fluid velocity on the side close to the water flow inside the filter holes is relatively fast, and the pressure is relatively small; while on the other side of the filter holes, the fluid velocity of the fluid behind the blockage is relatively slow, and the pressure is large, generating a pressure difference from the side with large pressure to the side with small pressure, that is, pointing to the water flow direction. Therefore, the blockage inside the filter holes of the filter cartridge 44 is carried out.

[0030] Moreover, since the printing and dyeing wastewater does not directly impact the filter cartridge 44 for filtration, the time for the printing and dyeing wastewater to move from the outside to the inside of the filter cartridge 44 is long, and it is not rapid filtration. Therefore, the fiber fragments and agglomerated slurries are blocked in the filter cartridge 44 at a relatively shallow depth. Thus, the adhesion force between the fiber fragments, agglomerated slurries and the filter holes of the filter cartridge 44 is small, so that the printing and dyeing wastewater can carry out the blockage inside the filter holes of the filter cartridge 44. At the same time, since the printing and dyeing wastewater does not directly impact the filter cartridge 44 for filtration, the impact force of the printing and dyeing wastewater on the filter cartridge 44 is small, thereby prolonging the service life of the filter cartridge 44.

[0031] As Figure 3 and Figure 5 shown, a converging plate 46 is fixedly installed on the outer wall of the filter cartridge 44. The converging plate 46 is located above the axis of the filter cartridge 44. The top of the converging plate 46 is fixedly connected to the auxiliary connecting pipe 43. The converging plate 46 adopts a spiral structure of one-sixth of a circle. From the opening to the end position of the converging plate 46, its cross-sectional area gradually decreases. A converging cylinder 48 is fixedly installed inside the auxiliary connecting pipe 43. The converging cylinder 48 penetrates the filter cartridge 44. The outer arc surface of the converging cylinder 48 is fixedly connected to the converging plate 46. An opening is provided at the connection between the converging cylinder 48 and the converging plate 46.

[0032] The converging plate 46 is used to divert the fiber fragments and agglomerated slurries, and guide the fiber fragments and agglomerated slurries to the converging cylinder 48. At the same time, the printing and dyeing wastewater flows at the connection between the converging plate 46 and the filter cartridge 44 and enters the inside of the filter cartridge 44. The filtered printing and dyeing wastewater is collected through the filterless hole area at the bottom and near the end of the filter cartridge 44 and diverted into the inside of the sewage treatment tank 1.

[0033] A support cylinder 45 is fixedly installed at the end with a small diameter of the filter cartridge 44. The support cylinder 45 is fixedly connected to the spiral guide vane 42. A support ring 47 is fixedly installed at the end with a large diameter of the filter cartridge 44. The outer arc surface of the support ring 47 is fixedly connected to the auxiliary connecting pipe 43.

[0034] In this embodiment, the printing and dyeing wastewater is guided by the spiral guide vane 42 to flow spirally. The printing and dyeing wastewater filters large-volume objects in the wastewater through the filter cartridge 44. Due to inertia, the printing and dyeing wastewater continues to flow along the auxiliary connecting pipe 43. The fiber fragments and agglomerated slurries on the outer wall of the filter cartridge 44 are driven by the printing and dyeing wastewater to continue to move, so as to bring the fiber fragments and agglomerated slurries to the end of the filter cartridge 44. At the same time, when the water flow of the printing and dyeing wastewater along the tangential direction of the filter cartridge 44 passes through the filter holes, the blockage inside the filter holes of the filter cartridge 44 is carried out.

[0035] Example 2 Based on Example 1, this example proposes a polyester drawn texturing yarn printing and dyeing wastewater treatment device, as Figure 5 and Figure 6 shown. A discharge component 5 is arranged inside the filter cartridge 44. The discharge component 5 includes a three-part support plate 52. The three-part support plate 52 is fixedly installed inside the filter cartridge 44. An impeller 51 is rotatably connected to the side of the three-part support plate 52, as Figure 8 shown. A vertical spiral blade 56 for conveying fiber debris and agglomerated slurry in the printing and dyeing wastewater is rotatably connected inside the converging cylinder 48. A transmission member is arranged between the impeller 51 and the vertical spiral blade 56.

[0036] The tail end of the converging plate 46 faces the vertical spiral blade 56. An inclined discharge slide plate 58 is fixedly installed on the outer arc surface of the converging cylinder 48 and near the top position. A discharge port 57 is formed at the connection between the converging cylinder 48 and the discharge slide plate 58. A negative pressure air extraction pump is fixedly installed at the connection between the discharge slide plate 58 and the converging cylinder 48 to assist in extracting fiber fragments and agglomerated slurry. The filtered printing and dyeing wastewater impacts the impeller 51, causing the impeller 51 to rotate. The impeller 51 uses the transmission member to rotate the vertical spiral blade 56 to drive the fiber fragments and agglomerated slurry in the converging cylinder 48 upward. After the fiber fragments and agglomerated slurry are conveyed to the discharge port 57, the fiber fragments and agglomerated slurry are discharged along the discharge slide plate 58. Since the vertical spiral blade 56 is vertical, the water in the fiber fragments and agglomerated slurry flows downward along the vertical spiral blade 56 due to gravity.

[0037] As Figure 7 shown, the transmission member includes a first bevel gear 53, a second bevel gear 54, and a rotating rod 55. The first bevel gear 53 is fixedly installed at the end of the rotating shaft of the impeller 51. The center of the vertical spiral blade 56 is fixedly connected to the rotating rod 55. The second bevel gear 54 is fixedly installed at the end of the rotating rod 55. The first bevel gear 53 is meshed with the second bevel gear 54. Both the first bevel gear 53 and the second bevel gear 54 are located inside the three-part support plate 52.

[0038] The impeller 51 drives the first bevel gear 53 to rotate. Since the first bevel gear 53 and the second bevel gear 54 are meshed, the second bevel gear 54, the rotating rod 55, and the vertical spiral blade 56 rotate synchronously, and the vertical spiral blade 56 is used to lift and discharge the fiber fragments and agglomerated slurry.

[0039] In this embodiment, the filtered printing and dyeing wastewater is used to impact the impeller 51 to make it rotate, so that the vertical spiral blade 56 rotates to lift the fiber fragments and agglomerated slurry in the gathering cylinder 48 to the discharge slide plate 58 and discharge them. Since the vertical spiral blade 56 is vertical, the water in the fiber fragments and agglomerated slurry flows downward along the vertical spiral blade 56 due to gravity to separate solids and liquids, preventing the fiber fragments and agglomerated slurry from accumulating in the gathering cylinder 48 and affecting the filtration of the filter cartridge 44.

[0040] Embodiment 3 Based on the above Embodiment 1 or Embodiment 2, this embodiment proposes a polyester drawn texturing yarn printing and dyeing wastewater treatment device. As Figure 9 shown, a treatment control assembly 6 is fixedly installed at one end of the main pipeline 41 away from the auxiliary connecting pipe 43. The treatment control assembly 6 includes a wastewater inlet pipe 61. The end of the wastewater inlet pipe 61 is fixedly connected to the main pipeline 41. A push-button flow rate valve 62 is fixedly installed in the middle of the wastewater inlet pipe 61. An impact plate 63 is rotatably connected inside the wastewater inlet pipe 61. A reset counterweight 64 is fixedly installed at the bottom of the impact plate 63. An adjusting member is provided between the reset counterweight 64 and the push-button flow rate valve 62.

[0041] The diameter of the wastewater inlet pipe 61 is one-third of the diameter of the main pipeline 41. Therefore, the printing and dyeing wastewater flowing in the main pipeline 41 does not exceed one-half of the volume of the main pipeline 41. The flow rate of the printing and dyeing wastewater in the wastewater inlet pipe 61 is controlled by the push-button flow rate valve 62, so that the printing and dyeing wastewater still has inertia after flowing out of the main pipeline 41, can maintain spiral flow, and at the same time keep the flow rate of the printing and dyeing wastewater within a fixed range, avoiding excessive impact force of the printing and dyeing wastewater on the filter cartridge 44 and causing deformation of the filter cartridge 44 and affecting its filtration effect.

[0042] As Figure 10 shown, a guiding support plate 67 is fixedly installed at the bottom of the wastewater inlet pipe 61. An adjusting rod 66 is slidably connected inside the guiding support plate 67. A wedge block 68 is fixedly installed at the end of the adjusting rod 66. The inclined surface of the wedge block 68 contacts the pressing device of the push-button flow rate valve 62. An avoidance assembly is provided between the end of the adjusting rod 66 and the reset counterweight 64. Through the cooperation of the impact plate 63 and the reset counterweight 64, the impact plate 63 can be reset after being impacted by the printing and dyeing wastewater. The deflection of the impact plate 63 drives the deflection of the reset counterweight 64. The reset counterweight 64 drives the adjusting rod 66 to move by using the intermediate plate 65 and the sliding column, adjusts the position of the wedge block 68 of the guiding support plate 67, and presses the pressing device of the push-button flow rate valve 62 by using the inclined surface of the wedge block 68 to adjust the flow rate of the printing and dyeing wastewater in the push-button flow rate valve 62.

[0043] Meanwhile, if the content of fiber debris and agglomerated slurry in the printing and dyeing wastewater is high, the deflection angle of the impact plate 63 is large. At this time, the flow rate of the printing and dyeing wastewater is reduced to avoid the relative speed between the printing and dyeing wastewater and the filter cartridge 44, so as to improve the filtration effect.

[0044] The avoidance assembly includes an intermediate plate 65 and a sliding column. The intermediate plate 65 is fixedly installed on the side of the reset counterweight 64 facing the pressing type flow rate valve 62. A vertical groove is formed in the middle of the intermediate plate 65, and the sliding column slides in the vertical groove. Both ends of the sliding column are fixedly connected to the adjusting rod 66. The avoidance assembly prevents the reset counterweight 64 from being blocked by the adjusting rod 66 during the moving process.

[0045] In this embodiment, the impact plate 63 is deflected by the impact of the printing and dyeing wastewater, and the position of the wedge block 68 is adjusted by the deflection angle of the impact plate 63. The inclined surface of the wedge block 68 presses the pressing device of the pressing type flow rate valve 62, so as to adjust the flow rate of the printing and dyeing wastewater in the pressing type flow rate valve 62, reduce the impact force of the printing and dyeing wastewater on the filter cartridge 44, and prevent the filter cartridge 44 from deforming and affecting its filtration effect.

[0046] The above specific embodiments are only several alternative embodiments of the present invention. Based on the technical solution of the present invention and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A polyester low-elastic silk printing and dyeing wastewater treatment device, comprising a sewage treatment tank (1), wherein an air flotation tank (2) and a coagulation tank (3) are provided inside the sewage treatment tank (1), and a dissolved air releaser (7) is fixedly installed inside the coagulation tank (3), characterized in that: The pre-treatment component (4) comprises a secondary connecting pipe (43), one end of which is fixedly mounted a main pipeline (41), the interior of which is fixedly mounted a spiral guide plate (42), the interior of which flows printing and dyeing wastewater along the spiral guide plate (42), the interior of which is fixedly mounted a filter cartridge (44), the diameter of which increases gradually, and the outer wall of which is fixedly mounted a gathering plate (46); The other end of the secondary connecting pipe (43) is connected to the flotation tank (2) inside the sewage treatment tank (1), and the printing and dyeing wastewater flows in a spiral shape on the outer wall of the filter cartridge (44). The filter cartridge (44) has a filter hole area and a filter hole-free area, and the filter hole-free area is located at the bottom of the filter cartridge (44) and close to the tail end; A discharge assembly (5) is disposed inside the filter cartridge (44), and a processing control assembly (6) is fixedly mounted on one end of the main flow pipe (41) away from the secondary connecting pipe (43).

2. A polyester low-elastic silk printing and dyeing wastewater treatment device according to claim 1, characterized in that: The gathering plate (46) is located above the axis of the filter cartridge (44); the top of the gathering plate (46) is fixedly connected to the auxiliary connecting pipe (43); the gathering plate (46) has a one-sixth turn spiral structure; and the cross-sectional area of ​​the gathering plate (46) gradually decreases from the opening to the rear end.

3. The polyester low-elastic silk printing and dyeing wastewater treatment device according to claim 1, characterized in that: A gathering cylinder (48) is fixedly installed inside the secondary connecting pipe (43), the gathering cylinder (48) passes through the filter cylinder (44), the outer arc surface of the gathering cylinder (48) is fixedly connected to the gathering plate (46), and an opening is provided at the connection between the gathering cylinder (48) and the gathering plate (46).

4. The polyester low-elastic silk printing and dyeing wastewater treatment device according to claim 1, characterized in that: A support cylinder (45) is fixedly mounted on the end of the filter cartridge (44) with a smaller diameter, and the support cylinder (45) is fixedly connected to the spiral guide plate (42). A support ring (47) is fixedly mounted on the end of the filter cartridge (44) with a larger diameter, and the outer arc surface of the support ring (47) is fixedly connected to the auxiliary connecting pipe (43).

5. The polyester low-elastic silk printing and dyeing wastewater treatment device according to claim 3, characterized in that: The discharge assembly (5) comprises a three-part support plate (52), the three-part support plate (52) is fixedly mounted inside the filter cartridge (44), the side of the three-part support plate (52) is rotatably connected to an impeller (51), the interior of the gathering cylinder (48) is rotatably connected to a vertical spiral blade (56) for conveying fiber debris and agglomerated slurry in the printing and dyeing wastewater, and a transmission member is provided between the impeller (51) and the vertical spiral blade (56).

6. A polyester low-elastic silk printing and dyeing wastewater treatment device according to claim 5, characterized in that: The tail end of the gathering plate (46) faces the vertical spiral sheet (56), and an inclined discharge slide plate (58) is fixedly mounted on the outer arc surface of the gathering cylinder (48) near the top end, and a discharge outlet (57) is provided at the connection between the gathering cylinder (48) and the discharge slide plate (58).

7. A polyester low-elastic silk printing and dyeing wastewater treatment device according to claim 6, characterized in that: The transmission member comprises a first bevel gear (53), a second bevel gear (54) and a rotating rod (55); the first bevel gear (53) is fixedly mounted on the end of the rotating shaft of the impeller (51); the center of the vertical spiral sheet (56) is fixedly connected to the rotating rod (55); the second bevel gear (54) is fixedly mounted on the end of the rotating rod (55); the first bevel gear (53) is meshedly connected with the second bevel gear (54); and the first bevel gear (53) and the second bevel gear (54) are both located inside the three-divided support plate (52).

8. The polyester low-elastic silk printing and dyeing wastewater treatment device according to claim 1, characterized in that: The treatment control assembly (6) comprises a wastewater inlet pipe (61), the end of which is fixedly connected to the main flow pipe (41), a push-type flow rate valve (62) is fixedly installed in the middle of the wastewater inlet pipe (61), an impact plate (63) is rotatably connected inside the wastewater inlet pipe (61), a reset counterweight (64) is fixedly installed at the bottom end of the impact plate (63), and an adjustment member is provided between the reset counterweight (64) and the push-type flow rate valve (62).

9. The polyester low-elastic silk printing and dyeing wastewater treatment device according to claim 8, characterized in that: A guide support plate (67) is fixedly mounted on the bottom of the wastewater inlet pipe (61), an adjustment rod (66) is slidably connected inside the guide support plate (67), a wedge block (68) is fixedly mounted on the end of the adjustment rod (66), the inclined surface of the wedge block (68) contacts the pressing device of the press-type flow rate valve (62), and an avoidance component is provided between the end of the adjustment rod (66) and the reset counterweight block (64).

10. The polyester low-elastic silk printing and dyeing wastewater treatment device according to claim 9, characterized in that: The avoidance assembly comprises an intermediate plate (65) and a sliding column. The intermediate plate (65) is fixedly mounted on a side of the reset counterweight (64) facing the push-type flow rate valve (62). A vertical groove is provided in the middle of the intermediate plate (65). The sliding column slides in the vertical groove. Both ends of the sliding column are fixedly connected to the adjustment rod (66).

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