Printing and dyeing sewage treatment and recycling device

Abstract

The utility model provides a printing and dyeing sewage treatment and recycling device, which comprises a filter grating installed in a sewage channel, the filter grating comprises a concentric-square-shaped frame and a plurality of positioning flanges, the positioning flanges are sequentially distributed along a first direction of the concentric-square-shaped frame, the positioning flanges are arranged along a second direction, and the first direction is perpendicular to the second direction; a plurality of filter frames are arranged, and the filter frames are inserted between the two adjacent positioning flanges along a second direction; the guide plate is in sliding connection with the concentric-square-shaped frame in the first direction, the guide plate is arranged on the upstream of the filtering frames and used for guiding printing and dyeing sewage to the filtering frames on the two sides, and compared with the prior art, the sewage cleaning efficiency can be guaranteed, and the filtering frames can be cleaned in order.

Description

Technical Field

[0001] This application relates to the field of wastewater treatment, and more particularly to a device for the treatment and recycling of dyeing and printing wastewater. Background Technology

[0002] The dyeing and printing industry is a typical water-intensive industry, requiring nearly 100 million tons of softened water for process use every year. A large amount of wastewater is generated during the textile dyeing and printing process. The wastewater contains impurities such as fibers shed from textiles. The pollutant composition of dyeing and printing wastewater is very complex, and the wastewater needs to be treated before it can be discharged.

[0003] To conserve water, wastewater from dyeing and printing is typically recycled. During this recycling process, filter screens are usually used to filter the fibers in the wastewater. A typical filter screen is a single, integrated structure placed in the wastewater flow channel. Due to the large volume of dyeing and printing wastewater, continuous filtration is required. When excessive impurities accumulate on the filter screen, it needs to be removed for cleaning and then reinstalled in the wastewater flow channel. After the filter screen is removed, the wastewater channel needs to be blocked for a period of time to prevent impurities from flowing downstream and affecting the filtration efficiency.

[0004] Therefore, how to design a filter grid that improves the filtration efficiency of dyeing and printing wastewater has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] This application provides a dyeing and printing wastewater treatment and recycling device to at least solve the above-mentioned technical problems existing in the prior art.

[0006] A wastewater treatment and recycling device for dyeing and printing is provided, including a filter screen installed in a wastewater channel, comprising a U-shaped frame.

[0007] Positioning stops are provided in several places and are distributed sequentially along the first direction of the loop frame. The positioning stops are set along the second direction, and the first direction and the second direction are perpendicular to each other.

[0008] A filter frame is provided, and the filter frame is inserted between two adjacent positioning stops along the second direction;

[0009] The guide plate is slidably connected to the U-shaped frame along the first direction. The guide plate is located upstream of the filter frame to guide the dyeing wastewater to the filter frames on both sides.

[0010] In one embodiment, the side wall of the positioning stop is provided with an insertion groove arranged along the second direction, and the opening of the filter frame is provided with an insertion stop. When the filter frame is installed, the insertion stop is inserted into the insertion groove.

[0011] In one embodiment, a locking member is also included. The locking member is disposed on the insertion stop edge. The inner wall of the insertion groove is provided with a locking groove that communicates with the opening of the U-shaped frame. When the filter frame is installed on the U-shaped frame, the locking member is inserted into the locking groove to restrict the relative movement of the filter frame and the positioning stop edge along the second direction.

[0012] In one embodiment, the locking member includes a mounting groove with an opening on one side, a first spring, and a locking pin. The mounting groove is disposed on the insertion stop edge, and the locking pin is slidably installed in the mounting groove. One end of the first spring is fixedly connected to the locking pin, and the other end of the first spring is connected to the mounting groove. When the filter frame is installed, the locking pin is inserted into the locking groove.

[0013] In one embodiment, an unlocking component is also included. The unlocking component is installed on the guide plate. When the guide plate is aligned with any filter frame, the unlocking component is inserted into the locking groove and pushes the locking pin into the mounting groove to release the locking between the filter frame and the positioning stop.

[0014] In one embodiment, the unlocking component includes an unlocking groove, a second spring, and an unlocking pin. The unlocking groove is disposed on the guide plate, the side wall of the unlocking pin is slidably connected to the inner wall of the unlocking groove, one end of the second spring is fixedly connected to the unlocking pin, and the other end of the second spring is fixedly connected to the inner wall of the unlocking groove. When the guide plate and the filter frame are aligned, the unlocking pin is inserted into the locking groove.

[0015] In one embodiment, the locking groove has an isosceles trapezoidal cross-section, with the smaller side of the locking groove opening towards the locking member and the larger side opening towards the unlocking member. The unlocking pin is provided with a guide slope that matches the inclined sidewall of the locking groove.

[0016] In one embodiment, the cross-section of the guide plate is triangular, the bottom wall of the U-shaped frame is provided with a sliding groove, and a guide wheel is rotatably connected to the bottom wall of the guide plate. The guide wheel extends into the sliding groove and is in rolling connection with the sliding groove.

[0017] In one embodiment, the top wall of the U-shaped frame is provided with a through groove, which is arranged along a first direction. A push rod extending upward through the through groove is fixed on the guide plate, and the side wall of the push rod is slidably connected to the inner wall of the through groove along the first direction.

[0018] In one embodiment, the guide plate is provided with a compensation plate, which abuts against the bottom edge of the U-shaped frame to seal the bottom of the guide plate.

[0019] Compared with existing technologies, the dyeing and printing wastewater treatment and recycling device of this application has the following advantages:

[0020] This application features a series of filter frames arranged sequentially on a U-shaped frame. These filter frames can filter impurities in dyeing wastewater. When a guide plate is aligned with one of the filter frames, the guide plate directs the wastewater into the filter frames on both sides. This allows the filter frame aligned with the guide plate to be pulled upwards, thus cleaning the impurities within it. While one filter frame is being cleaned, the others continue filtering, ensuring continuous filtration of the dyeing wastewater and improving filtration efficiency. Once the impurities in the filter frames are cleaned, they are reset, and the guide plate can move to the next position to achieve sequential cleaning of each filter frame. Compared to existing technologies, this application ensures both efficient wastewater cleaning and orderly filter frame cleaning.

[0021] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this application, nor is it intended to limit the scope of this application. Other features of this application will become readily apparent from the following description. Attached Figure Description

[0022] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings. Several embodiments of this application are illustrated in the drawings by way of example and not limitation, in which:

[0023] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0024] Figure 1 A schematic diagram of the filter grid installation of this application is shown;

[0025] Figure 2 A schematic diagram of the filter grid of this application is shown in unfolded form;

[0026] Figure 3 A schematic diagram of the cross-section of the spiral frame of this application is shown;

[0027] Figure 4 A cross-sectional schematic diagram of the filter frame of this application is shown;

[0028] Figure 5 A cross-sectional view of the overall structure of this application is shown;

[0029] Figure 6 It shows Figure 5 A magnified structural diagram of A in the middle;

[0030] Figure 7 This paper shows a schematic diagram of the overall structure of the filter grid of this application;

[0031] Figure 8 A schematic diagram of the structure of the guide plate of this application is shown;

[0032] Figure 9 A first-angle sectional view of the deflector plate of this application is shown;

[0033] Figure 10 A second-angle sectional view of the deflector plate of this application is shown.

[0034] Explanation of the labels in the diagram:

[0035] X, first direction; Y, second direction;

[0036] 1. Filter screen; 10. Recurved frame; 100. Sewage channel; 101. Sliding trough; 102. Through groove; 11. Positioning guard; 111. Insertion groove; 112. Locking groove;

[0037] 2. Filter frame; 21. Inserted retaining edge;

[0038] 3. Deflector plate; 31. Guide wheel; 32. Push rod; 33. Compensation plate;

[0039] 4. Locking component; 41. Mounting slot; 42. First spring; 43. Locking pin;

[0040] 5. Unlocking component; 51. Unlocking slot; 52. Second spring; 53. Unlocking pin; 531. Guide slope. Detailed Implementation

[0041] To make the objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] This application mainly improves the structure of the filter screen 1. A conventional filter screen 1 uses a U-shaped frame 10, within which a filter screen is installed to filter impurities. The U-shaped frame 10 is used to fix the filter screen 1. However, when cleaning impurities from a conventional filter screen 1, the entire U-shaped frame 10 needs to be removed from its installation position before the impurities on the filter screen can be cleaned. This disassembly and reassembly of the filter screen 1 affects the continuous treatment of wastewater, further impacting the wastewater treatment efficiency.

[0043] like Figure 1 As shown, it includes a sewage channel 100, wherein a filter grid 1 is inserted into the sewage channel 100 to intercept and filter impurities in the sewage channel 100.

[0044] It is worth noting that the cross-section of the sewage channel 100 is a C-shaped structure with the opening facing upwards, and the filter screen 1 can be removed from the sewage channel 100 by pulling it upwards.

[0045] Specifically, such as Figure 2 As shown, the filter grid 1 includes a U-shaped frame 10 and several positioning baffles 11. In this embodiment, the width direction of the filter grid 1 is the first direction X, the height direction of the filter grid 1 is the second direction Y, and the thickness direction of the filter grid 1 represents the flow direction of the sewage. The positioning baffles 11 are arranged along the second direction Y, and the several positioning baffles 11 are evenly distributed along the first direction X. The positioning baffles 11 are fixedly installed on the downstream side wall of the U-shaped frame 10. Here, downstream refers to the downstream direction of the sewage flow.

[0046] In order to filter impurities in wastewater, such as Figure 2 As shown, it also includes several filter frames 2, wherein the filter frames 2 are inserted between two adjacent positioning baffles 11 to fix the filter frames 2 and prevent the filter frames 2 from flowing downstream with the sewage.

[0047] Specifically, in this embodiment, four positioning guards 11 are used as an example, and three filter frames 2 are used as an example for explanation.

[0048] It is worth noting that the opening of filter frame 2 faces the direction of sewage flow in order to collect impurities in the water.

[0049] When a large amount of impurities accumulate in the filter frame 2, it is necessary to clean the impurities in the filter frame 2 to ensure the wastewater treatment efficiency of the filter grid 1. If the filter frame 2 is directly removed from the U-shaped frame 10, a gap will be left in the filter grid 1, causing impurities to flow through the filter grid into the next treatment stage. In this case, the cleaning of impurities in the wastewater is not thorough. To solve the problem of impurities not flowing downstream during the cleaning process of the filter frame 2, in this embodiment, a guide plate 3 is also provided, such as... Figure 2 As shown, the guide plate 3 is slidably connected to the U-shaped frame 10 along the first direction X. Specifically, the guide plate 3 is installed on the upstream side of the filter frame 2. When the guide plate 3 is aligned with one of the filter frames 2, the guide plate 3 will divert the sewage to the filter frames 2 on both sides. The filter frame 2 behind the guide plate 3 can then be removed from the U-shaped frame 10 to clean the impurities in the filter frame 2. By changing the position of the guide plate 3 in sequence, the filter frames 2 can be cleaned in sequence.

[0050] This solution eliminates the need to remove the entire spiral frame 10 from the sewage channel 100, enabling continuous sewage treatment while also allowing for the phased treatment of impurities in the filter frame 2, thereby improving sewage treatment efficiency.

[0051] To achieve the installation of filter frame 2, in this embodiment, as follows: Figure 3 and Figure 4 As shown, the side wall of the positioning baffle 11 is provided with a plug groove 111 arranged along the second direction Y, and the opening of the filter frame 2 is provided with a plug baffle 21. When installing the filter frame 2, the position of the plug baffle 21 is aligned with the plug groove 111, and then the filter frame 2 is inserted into the plug groove 111 from top to bottom along the second direction Y, thereby realizing the installation of the filter frame 2.

[0052] It is worth noting that a filter screen is also provided on the bottom wall of the filter frame 2. After the filter frame 2 is installed, the filter screen at the bottom of the filter frame 2 is flush with the bottom edge of the U-shaped frame 10 to prevent impurities in the sewage from leaking out from the bottom of the filter frame 2.

[0053] The amount of dyeing and printing wastewater is relatively large. When the flow rate of wastewater in the wastewater channel 100 is high, the filter frame 2 is at risk of jumping along the second direction Y. At this time, the bottom of the filter frame 2 will rise, which will cause impurities in the wastewater to leak downstream and affect the cleaning effect of impurities.

[0054] Therefore, in order to solve this problem, in this embodiment, when the filter frame 2 is installed on the positioning baffle 11, it is necessary to lock the filter frame 2 to the positioning baffle 11 to prevent the filter frame 2 from jumping upward.

[0055] Reference Figure 3 , Figure 4 and Figure 5 As shown, it also includes a locking member 4 and a locking groove 112. The locking groove 112 is disposed on the inner wall of the insertion groove 111 and communicates with the opening of the U-shaped frame 10. The locking member 4 is installed on the insertion stop 21. When the filter frame 2 is installed on the stop 11 to be positioned, as shown... Figure 5 and Figure 6 As shown, at this time, the locking member 4 is inserted into the locking groove 112, thereby restricting the filter frame 2 from moving along the second direction Y, thus solving the problem of impurities leaking out from the bottom of the filter frame 2.

[0056] In order to ensure that the guide plate 3 slides stably along the first direction X, in this embodiment, as follows: Figure 7 and Figure 8 As shown, the bottom wall of the U-shaped frame 10 is provided with a sliding groove 101, and the bottom wall of the guide plate 3 is rotatably connected with a guide wheel 31, wherein the axis of the guide wheel 31 is set along the second direction Y, the guide wheel 31 is inserted into the sliding groove 101, and the guide wheel 31 is rolledly connected to the inner wall of the sliding groove 101, thereby ensuring the stable movement of the guide plate 3.

[0057] To facilitate the movement of the guide vane 3, in this embodiment, as follows: Figure 7 and Figure 8 As shown, the top wall of the U-shaped frame 10 is provided with a through groove 102, and a push rod 32 is fixed on the guide plate 3, which passes through the through groove 102 and extends vertically upward. The side wall of the push rod 32 is slidably connected to the inner wall of the through groove 102 along the first direction X. The guide plate 3 can be moved by the push rod 32.

[0058] To improve the diversion effect of the guide plate 3 on sewage, in this embodiment, as follows: Figure 7 and Figure 9 As shown, the cross-section of the guide plate 3 is isosceles and is a right-angled triangle. The hypotenuse of the guide plate 3 is set along the first direction X, and the right angle on the guide plate 3 is located on the upstream side of the sewage to guide the sewage.

[0059] To prevent sewage from flowing backward from the bottom of the guide plate 3, in this embodiment, as follows: Figure 10 As shown, a compensation plate 33 is also provided at the bottom of the guide plate 3. The compensation plate 33 abuts against the bottom edge of the U-shaped frame 10, thereby blocking it and preventing sewage from flowing downstream from the bottom of the guide plate 3.

[0060] Since the locking component 4 locks the filter frame 2 and the positioning baffle 11, when the guide plate 3 moves to align with the filter frame 2, the filter frame 2 needs to be unlocked from the positioning baffle 11 in order to remove the filter frame 2.

[0061] Specifically, such as Figure 6 and Figure 9 As shown, it also includes an unlocking component 5, wherein when the guide plate 3 is aligned with the filter frame 2, the unlocking component 5 is inserted into the locking groove 112 to push the corresponding locking pin 43 into the mounting groove 41.

[0062] The unlocking component 5 includes an unlocking groove 51, a second spring 52, and an unlocking pin 53. The unlocking groove 51 is disposed on the guide plate 3. The side wall of the unlocking pin 53 is slidably connected to the inner wall of the unlocking groove 51. One end of the second spring 52 is fixedly connected to the unlocking pin 53, and the other end of the second spring 52 is fixedly connected to the inner wall of the unlocking groove 51.

[0063] It is worth noting that both the first spring 42 and the second spring 52 are compression springs. Under the same compression length, the force applied by the second spring 52 is greater than that applied by the first spring 42. When the guide plate 3 is aligned with the filter frame 2, the unlocking pin 53 is inserted into the locking groove 112, thereby pushing the locking pin 43 into the mounting groove 41, releasing the locking part 4 from locking the filter frame 2 and the positioning stop 11. At this time, the filter frame 2 can be lifted upwards to complete the removal of the filter frame 2.

[0064] In order to ensure that the unlocking pin 53 can be smoothly inserted into and removed from the locking groove 112, in this embodiment, as follows: Figure 6and Figure 9 As shown, the cross-section of the locking groove 112 is an isosceles trapezoid. The smaller side of the isosceles trapezoid opens towards the locking member 4, and the larger side of the isosceles trapezoid opens towards the unlocking member 5. Both sides of the end of the unlocking pin 53 are provided with guide slopes 531, wherein the guide slopes 531 abut against the side wall of the isosceles trapezoid.

[0065] With the above settings, when the guide plate 3 moves along the first direction X, the guide slope 531 of the unlocking pin 53 abuts against the inclined wall of the locking groove 112, thereby pushing the unlocking pin 53 into the unlocking groove 51 and realizing the retraction of the unlocking pin 53, thus facilitating the movement of the guide plate 3.

[0066] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this application can be achieved, and this is not limited herein.

[0067] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0068] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A wastewater treatment and recycling device for dyeing and printing, comprising a filter screen (1) installed in a wastewater channel (100), characterized in that, Including the spiral frame (10), Positioning stop (11), there are several positioning stop (11) and they are distributed sequentially along the first direction (X) of the loop frame (10). The positioning stop (11) is set along the second direction (Y). The first direction (X) and the second direction (Y) are perpendicular to each other. A filter frame (2) is provided, and the filter frame (2) is inserted into the space between two adjacent positioning stops (11) along the second direction (Y). The guide plate (3) is slidably connected to the spiral frame (10) along the first direction (X). The guide plate (3) is set upstream of the filter frame (2) to guide the dyeing wastewater to the filter frames (2) on both sides.

2. The dyeing and printing wastewater treatment and recycling device according to claim 1, characterized in that, The side wall of the positioning stop (11) is provided with a plug groove (111) arranged along the second direction (Y), and the opening of the filter frame (2) is provided with a plug stop (21). When the filter frame (2) is installed, the plug stop (21) is inserted into the plug groove (111).

3. The dyeing and printing wastewater treatment and recycling device according to claim 2, characterized in that, It also includes a locking member (4), which is provided on the insertion stop (21). The inner wall of the insertion groove (111) is provided with a locking groove (112) that communicates with the opening of the circular frame (10). When the filter frame (2) is installed on the circular frame (10), the locking member (4) is inserted into the locking groove (112) to restrict the relative movement of the filter frame (2) and the positioning stop (11) along the second direction (Y).

4. The dyeing and printing wastewater treatment and recycling device according to claim 3, characterized in that, The locking component (4) includes a mounting groove (41) with an opening on one side, a first spring (42) and a locking pin (43). The mounting groove (41) is set on the insertion stop (21). The locking pin (43) is slidably installed in the mounting groove (41). One end of the first spring (42) is fixedly connected to the locking pin (43), and the other end of the first spring (42) is connected to the mounting groove (41). When the filter frame (2) is installed, the locking pin (43) is inserted into the locking groove (112).

5. The dyeing and printing wastewater treatment and recycling device according to claim 4, characterized in that, It also includes an unlocking component (5), which is installed on the guide plate (3). When the guide plate (3) is aligned with any filter frame (2), the unlocking component (5) is inserted into the locking groove (112) and the locking pin (43) is pushed into the mounting groove (41) to release the locking of the filter frame (2) and the positioning stop (11).

6. The dyeing and printing wastewater treatment and recycling device according to claim 5, characterized in that, The unlocking component (5) includes an unlocking groove (51), a second spring (52), and an unlocking pin (53). The unlocking groove (51) is set on the guide plate (3). The side wall of the unlocking pin (53) is slidably connected to the inner wall of the unlocking groove (51). One end of the second spring (52) is fixedly connected to the unlocking pin (53), and the other end of the second spring (52) is fixedly connected to the inner wall of the unlocking groove (51). When the guide plate (3) and the filter frame (2) are aligned, the unlocking pin (53) is inserted into the locking groove (112).

7. A wastewater treatment and recycling device for dyeing and printing as described in claim 6, characterized in that, The locking groove (112) has an isosceles trapezoidal cross section. The smaller side of the locking groove (112) opens towards the locking member (4), and the larger side of the locking groove (112) opens towards the unlocking member (5). The unlocking pin (53) is provided with a guide slope (531) that is adapted to the inclined side wall of the locking groove (112).

8. A wastewater treatment and recycling device for dyeing and printing as described in claim 1 or 7, characterized in that, The cross-section of the guide plate (3) is triangular, and the bottom wall of the spiral frame (10) is provided with a sliding groove (101). The bottom wall of the guide plate (3) is rotatably connected to a guide wheel (31), which extends into the sliding groove (101) and is in rolling connection with the sliding groove (101).

9. A wastewater treatment and recycling device for dyeing and printing as described in claim 8, characterized in that, The top wall of the U-shaped frame (10) is provided with a through groove (102), which is set along the first direction (X). A push rod (32) extending upward through the through groove (102) is fixed on the guide plate (3). The side wall of the push rod (32) and the inner wall of the through groove (102) are slidably connected along the first direction (X).

10. A wastewater treatment and recycling device for dyeing and printing as described in claim 1 or 7, characterized in that, The guide plate (3) is provided with a compensation plate (33), which abuts against the bottom edge of the spiral frame (10) to seal the bottom of the guide plate (3).

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