Dyeing wastewater settling and filtering treatment device

Abstract

The utility model relates to a settling and filtering treatment device for dyeing wastewater. The settling and filtering treatment device sequentially comprises a pretreatment unit and a settling unit from left to right, the pretreatment unit sequentially comprises a coagulating basin and a flocculation basin from left to right; the sedimentation unit sequentially comprises a first sedimentation tank and a second sedimentation tank from left to right; and a filtering assembly is detachably mounted in the drainage pipe. According to the utility model, through the coagulation and flocculation treatment of the pretreatment unit in sequence and the secondary sedimentation of the sedimentation unit in sequence, impurities entering the drainage pipe can be greatly reduced, and the treatment effect of wastewater is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater treatment, and in particular to a sedimentation and filtration treatment device for dyeing wastewater. Background Technology

[0002] Dyeing and printing wastewater refers to the wastewater discharged from dyeing and printing factories that process cotton, linen, chemical fibers and their blended products, silk, wool dyeing and finishing factories, and silk factories. The wastewater contains dyes, sizing agents, auxiliaries, oils, acids and alkalis, fiber impurities, sand, inorganic salts, etc.

[0003] Extensive searching revealed Chinese Patent Publication No. CN205313838U, which discloses a wastewater recycling device for dyeing machines. The device includes a dyeing machine, a drain pipe, a circulation pipe, a collection tank for settling impurities, a first valve, a second valve, a filter, and a circulating water pump. The dyeing machine has a drain outlet, the drain pipe is located at the drain outlet, the inlet of the circulation pipe is located on the drain pipe, and the outlet of the circulation pipe is located above the collection tank. The first valve is located near the outlet of the drain pipe, the second valve is located on the circulation pipe, and the filter and the circulating water pump are respectively located between the outlet of the collection tank and the inlet of the dyeing machine. By setting up a wastewater recycling system, the wastewater discharged from the dyeing machine is recycled and reused, avoiding environmental pollution and saving water resources.

[0004] In summary, existing dyeing wastewater is collected in a collection tank, and the return pipe is connected to the bottom side of the collection tank before being filtered and returned to the dyeing machine. During this process, a large amount of impurities deposited at the bottom of the collection tank will be carried into the filter, resulting in poor wastewater treatment efficiency and requiring frequent replacement of the filter on the return pipe.

[0005] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a sedimentation and filtration treatment device for dyeing wastewater, making it more valuable for industrial use. Utility Model Content

[0006] To solve any of the above-mentioned technical problems, the purpose of this utility model is to provide a sedimentation and filtration treatment device for dyeing wastewater.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A dyeing wastewater sedimentation and filtration treatment device includes, from left to right, a pretreatment unit and a sedimentation unit;

[0009] The pretreatment unit includes a coagulation tank and a flocculation tank from left to right. The coagulation tank and the flocculation tank are separated by a first partition. A first flow channel connected to the coagulation tank and the flocculation tank is opened at the top of the first partition. An inlet pipe is installed at the top left side of the coagulation tank. A coagulation dosing port and a flocculation dosing port are installed at the top of the coagulation tank and the flocculation tank, respectively.

[0010] The settling unit includes a first settling tank and a second settling tank from left to right. The top of the flocculation tank is connected to the first settling tank on the right side through a through hole. The first settling tank and the second settling tank are separated by a second partition. A second flow channel connected to the first settling tank and the second settling tank is opened at the top of the second partition. Sewage outlets are opened at the bottom of both the first settling tank and the second settling tank. A drain pipe is installed at the top right side of the second settling tank.

[0011] A filter assembly is installed inside the drain pipe.

[0012] As a further improvement of this utility model, the pretreatment unit also includes a stirring unit, which includes a lifting frame and a stirring mechanism. Several lifting rings connected to external lifting modules are installed on the top of the lifting frame, and stirring mechanisms are provided on the left and right sides of the bottom of the lifting frame. The two stirring mechanisms are located in the coagulation tank and the flocculation tank, respectively.

[0013] As a further improvement of this utility model, the stirring mechanism includes a stirring motor, a stirring rod, and stirring blades. The stirring motor is installed at the bottom of the lifting frame and is connected to the stirring rod located in the coagulation tank or flocculation tank below. Several stirring blades are evenly installed on the stirring rod.

[0014] As a further improvement of this utility model, a first guide plate inclined downward is installed in the coagulation tank below the inner side of the water inlet pipe.

[0015] As a further improvement of this utility model, aeration discs are installed on the inner bottom of both the coagulation tank and the flocculation tank.

[0016] As a further improvement of this utility model, a second guide plate inclined downward is installed on the top of the second sedimentation tank on the right side of the second flow channel.

[0017] As a further improvement of this utility model, a slot is provided in the drain pipe, and the filter assembly includes a filter plate. A filter screen is installed on the inner side of the filter plate, and the filter plate is inserted into the slot from top to bottom.

[0018] As a further improvement of this utility model, a filter handle is installed on the top of the filter insert plate.

[0019] As a further improvement of this utility model, a sealing gasket is installed between the filter insert plate and the slot.

[0020] By means of the above solution, this utility model has at least the following advantages:

[0021] This invention uses coagulation and flocculation in the pretreatment unit and secondary sedimentation in the sedimentation unit to greatly reduce impurities entering the drainage pipe and improve the wastewater treatment effect.

[0022] This invention allows for further filtration of wastewater by installing and removing a filter assembly inside the drain pipe. While improving wastewater treatment efficiency, the filter assembly is easy to install and remove.

[0023] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the following are the preferred embodiments of this utility model and are described in detail with reference to the accompanying drawings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a sedimentation and filtration treatment device for dyeing wastewater according to the present invention;

[0026] Figure 2 yes Figure 1 Schematic diagram of the stirring unit;

[0027] Figure 3 yes Figure 1 A schematic diagram of the internal structure of the drainage pipe.

[0028] The meanings of the labels in the figures are as follows.

[0029] Pretreatment unit 1, settling unit 2, mixing unit 3, coagulation tank 4, first baffle 5, flocculation tank 6, first settling tank 7, second baffle 8, second settling tank 9, inlet pipe 10, coagulation dosing port 11, flocculation dosing port 12, first guide plate 13, aeration disc 14, through hole 15, drain outlet 16, second guide plate 17, drain pipe 18, lifting frame 19, lifting ring 20, mixing motor 21, mixing rod 22, mixing blade 23, slot 24, filter insert plate 25, filter handle 26, filter screen 27, sealing gasket 28. Detailed Implementation

[0030] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0031] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally 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 invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] Example

[0033] like Figures 1-3 As shown,

[0034] A dyeing wastewater sedimentation and filtration treatment device includes, from left to right, a pretreatment unit 1 and a sedimentation unit 2.

[0035] 1. Functional structure of preprocessing unit 1:

[0036] The pretreatment unit 1 includes a coagulation tank 4 and a flocculation tank 6 from left to right, separated by a first partition 5. A first flow channel communicating with both the coagulation tank 4 and the flocculation tank 6 is provided at the top of the first partition 5. An inlet pipe 10 is installed on the top left side of the coagulation tank 4, and a downward-sloping first guide plate 13 is installed inside the coagulation tank 4 below the inlet pipe 10. A coagulation dosing port 11 and a flocculation dosing port 12 are respectively installed at the top of the coagulation tank 4 and the flocculation tank 6. An aeration disc 14 is installed on the inner bottom of both the coagulation tank 4 and the flocculation tank 6.

[0037] 2. Functional structure of settlement unit 2:

[0038] The settling unit 2 includes a first settling tank 7 and a second settling tank 9 from left to right. The top of the flocculation tank 6 is connected to the first settling tank 7 on the right side through a through hole 15. The first settling tank 7 and the second settling tank 9 are separated by a second partition 8. A second flow channel connected to the first settling tank 7 and the second settling tank 9 is opened at the top of the second partition 8. A sewage outlet 16 is opened at the bottom of both the first settling tank 7 and the second settling tank 9. A drain pipe 18 is installed on the top right side of the second settling tank 9.

[0039] Among them, a second guide plate 17 inclined downward is installed on the top of the second sedimentation tank 9 on the right side of the second flow channel. There is at least one second guide plate 17. The second guide plate 17 can guide and block the flow from the first sedimentation tank 7 to the second sedimentation tank 9, so as to prevent it from being discharged directly through the drain pipe 18.

[0040] 3. The pretreatment unit 1 also includes a stirring unit 3:

[0041] The mixing unit 3 includes a lifting frame 19 and a mixing mechanism. Several lifting rings 20 connected to external lifting modules are installed on the top of the lifting frame 19. Mixing mechanisms are located on both the left and right sides of the bottom of the lifting frame 19, with the two mixing mechanisms situated within the coagulation tank 4 and the flocculation tank 6, respectively. This mixing unit 3 has the function of freely lifting or lowering into the pretreatment unit 1, facilitating periodic cleaning.

[0042] The mixing mechanism includes a mixing motor 21, a mixing rod 22, and mixing blades 23. The mixing motor 21 is installed at the bottom of the lifting frame 19. The mixing motor 21 is connected to the mixing rod 22 located in the coagulation tank 4 or flocculation tank 6 below. Several mixing blades 23 are evenly installed on the mixing rod 22.

[0043] 4. A filter assembly is installed inside drain pipe 18 after disassembly:

[0044] A slot 24 is provided inside the drain pipe 18. The filter assembly includes a filter plate 25, a filter handle 26 is installed on the top of the filter plate 25, and a filter screen 27 is installed on the inner side of the filter plate 25. The filter plate 25 is inserted into the slot 24 from top to bottom. The insertion and installation structure of the filter assembly in the drain pipe 18 facilitates the installation and disassembly of the filter assembly, and makes cleaning and maintenance convenient.

[0045] In addition, a sealing gasket 28 is installed between the filter insert 25 and the slot 24 to improve its sealing performance during installation.

[0046] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A dyeing wastewater sedimentation filtration treatment device, comprising a pretreatment unit (1) and a sedimentation unit (2) from left to right in sequence. Characterized in that: The pretreatment unit (1) comprises a coagulation tank (4) and a flocculation tank (6) from left to right in sequence, and the coagulation tank (4) and the flocculation tank (6) are separated by a first partition (5), a first flow channel is formed on the top of the first partition (5) and communicates with the coagulation tank (4) and the flocculation tank (6), a water inlet pipe (10) is installed on the left top of the coagulation tank (4), and a coagulation dosing port (11) and a flocculation dosing port (12) are respectively installed on the top of the coagulation tank (4) and the flocculation tank (6). The sedimentation unit (2) comprises a first sedimentation tank (7) and a second sedimentation tank (9) from left to right in sequence, the top of the flocculation tank (6) is connected with the first sedimentation tank (7) on the right through a through hole (15), the first sedimentation tank (7) and the second sedimentation tank (9) are separated by a second partition (8), a second flow channel is formed on the top of the second partition (8) and communicates with the first sedimentation tank (7) and the second sedimentation tank (9), a sewage outlet (16) is formed on the bottom of the first sedimentation tank (7) and the second sedimentation tank (9), and a drain pipe (18) is installed on the right top of the second sedimentation tank (9). A filtration assembly is detachably installed in the drain pipe (18).

2. The dyeing wastewater sedimentation and filtration treatment device according to claim 1, characterized in that, The pretreatment unit (1) further comprises a stirring unit (3), the stirring unit (3) comprises a lifting frame (19) and a stirring mechanism, a plurality of lifting rings (20) connected with an external lifting module are installed on the top of the lifting frame (19), and the stirring mechanism is arranged on the bottom of the lifting frame (19) and located in the coagulation tank (4) and the flocculation tank (6) respectively.

3. A dyeing wastewater sedimentation filtration treatment apparatus according to claim 2, wherein The stirring mechanism comprises a stirring motor (21), a stirring rod (22) and stirring blades (23), the stirring motor (21) is installed on the bottom of the lifting frame (19), the stirring motor (21) is connected with the stirring rod (22) located in the coagulation tank (4) or the flocculation tank (6) below, and a plurality of stirring blades (23) are uniformly installed on the stirring rod (22).

4. The dyeing wastewater sedimentation filtration treatment device according to claim 1, characterized in that, A first flow guide plate (13) inclined downward is installed in the coagulation tank (4) below the inner side of the water inlet pipe (10).

5. The dyeing wastewater sedimentation filtration treatment device according to claim 1, characterized in that, An aeration disc (14) is installed on the inner side of the bottom of the coagulation tank (4) and the flocculation tank (6).

6. The dyeing wastewater sedimentation filtration treatment device according to claim 1, characterized in that, A second flow guide plate (17) inclined downward is installed on the top of the second sedimentation tank (9) on the right side of the second flow channel.

7. The dyeing wastewater sedimentation filtration treatment device according to claim 1, characterized in that, A slot (24) is formed in the drain pipe (18), the filtration assembly comprises a filtration plugboard (25), a filter screen (27) is installed on the inner side of the filtration plugboard (25), and the filtration plugboard (25) is inserted into the slot (24) from top to bottom.

8. A dyeing wastewater sedimentation filtration treatment apparatus according to claim 7, wherein A filtration handle (26) is installed on the top of the filtration plugboard (25).

9. The dyeing wastewater sedimentation filtration treatment device according to claim 7, characterized in that, A sealing gasket (28) is installed between the filtration plugboard (25) and the slot (24).

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