Printing and dyeing wastewater recovery treatment device

Abstract

The utility model relates to the technical field of printing and dyeing equipment, and particularly discloses a printing and dyeing wastewater recovery treatment device which comprises a base and a flocculation mechanism, the flocculation mechanism is arranged above the base, a permeation filtering mechanism is arranged on one side of the flocculation mechanism, and the flocculation mechanism comprises a stirring tank, a first sealing cover, a stirring rod, a support and a first supporting plate. The osmosis filtering mechanism comprises a second sealing cover, a reverse osmosis membrane filtering piece, a shell and a second supporting plate, the recovery treatment device can remove impurities in the printing and dyeing wastewater in a flocculation and precipitation mode, and organic compounds such as auxiliaries and oil agents in the printing and dyeing wastewater are removed through osmosis of the reverse osmosis membrane filtering piece; the treatment effect of the device on the printing and dyeing wastewater is ensured, the filter screen and the reverse osmosis membrane filter are convenient to clean and maintain, and the printing and dyeing wastewater treatment quality and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing and dyeing equipment, and specifically discloses a printing and dyeing wastewater recovery and treatment device. Background Art

[0002] Printing and dyeing wastewater refers to wastewater generated in the printing and dyeing process. The components of the printing and dyeing wastewater are complex, including unreacted dyes, pigments, additives, reaction products, and fabric debris. In order to reduce the harm of printing and dyeing wastewater to the environment, it is necessary to use a printing and dyeing wastewater recovery and treatment device to treat the printing and dyeing wastewater. Chinese patent No. CN213623579U4 discloses a printing and dyeing wastewater recovery device, including a treatment barrel, the front and rear sides of the treatment barrel are provided with brackets, the two brackets are rotatably connected to the treatment barrel, the upper end of the treatment barrel is equipped with a discharge nozzle connected to the interior thereof, the upper end of the treatment barrel is fixedly installed with a sealing plate, a motor is arranged above the sealing plate, the motor is fixedly connected to the upper surface of the sealing plate, the output shaft of the motor is fixedly installed with a stirring shaft, the end of the stirring shaft away from the motor is located inside the treatment barrel, a filter screen is arranged inside the treatment barrel, and the circumferential surface of the filter screen contacts the inner wall of the treatment barrel. The printing and dyeing wastewater recovery device, by arranging a motor, a stirring shaft, a hydraulic cylinder and a filter screen, can achieve the effect of efficiently cleaning impurities in the wastewater, and solves the problem that the wastewater recovery device in the prior art cannot fully and effectively clean the wastewater, resulting in a waste of time and an increase in cost. However, the above-mentioned recovery device can only flocculate and filter the printing and dyeing wastewater, and cannot remove organic compounds such as auxiliaries and oils in the printing and dyeing wastewater, which to a certain extent affects the treatment effect of the device on the printing and dyeing wastewater. The impurities adsorbed on the filter screen in the above-mentioned recovery device will fall repeatedly during the up and down movement of the filter screen, and when the filter screen reaches the maximum adsorption limit, the impurities will block the filter holes, and the filter screen needs to be cleaned in time. However, the operation of cleaning the filter screen must be performed after the printing and dyeing wastewater in the treatment barrel is drained, which further affects the quality and efficiency of the printing and dyeing wastewater treatment, which is relatively inconvenient. Therefore, in order to solve the above-mentioned problems, the utility model proposes a printing and dyeing wastewater recovery and treatment device. Utility Model Content

[0003] The utility model aims to provide a printing and dyeing wastewater recovery and treatment device, which can remove impurities in the printing and dyeing wastewater by flocculation and sedimentation, and remove organic compounds such as additives and oils in the printing and dyeing wastewater by penetration through a reverse osmosis membrane filter element, thereby ensuring the treatment effect of the device on the printing and dyeing wastewater, and facilitating the cleaning and maintenance of the filter screen and the reverse osmosis membrane filter element, thereby improving the quality and efficiency of the printing and dyeing wastewater treatment.

[0004] The utility model is realized by the following technical solutions:

[0005] A printing and dyeing wastewater recovery and treatment device comprises a base and a flocculation mechanism, wherein the flocculation mechanism is arranged above the base, and an osmosis filtration mechanism is arranged on one side of the flocculation mechanism, the flocculation mechanism comprises a stirring tank, a first sealing cover, a stirring rod, a bracket and a first support plate, and the osmosis filtration mechanism comprises a second sealing cover, a reverse osmosis membrane filter element, a shell and a second support plate.

[0006] As a further configuration of the above scheme, a controller is provided on one side above the base. The above design facilitates the control of the operation of relevant components in the device, ensuring the smooth recovery and treatment of printing and dyeing wastewater by the device.

[0007] As a further configuration of the above scheme, a handle is connected to the lower end of the stirring tank, a first cover is connected to the upper end of the stirring tank, a motor is connected to the middle part of the first cover, a first liquid inlet pipe and a second liquid inlet pipe are respectively provided on both sides of the motor, a stirring rod is connected to the output end of the motor, the lower end of the stirring rod is connected to the bottom of the stirring tank, a bracket is connected to the outside of the stirring tank, and a first liquid discharge pipe is connected to the lower end of the stirring tank. The above design can provide a gripping point for workers during the cleaning process of the stirring tank, facilitate the tipping and straightening of the stirring tank, facilitate the cleaning of the stirring tank and the stirring rod, facilitate the injection of printing and dyeing wastewater and flocculant into the stirring tank and fully mix them, thereby improving the efficiency of flocculation and sedimentation.

[0008] As a further configuration of the above scheme, first alignment identification blocks are provided on both sides of the bracket, support shafts are connected to both sides of the bracket, a first support plate is provided on the outer side of the support shaft, the lower end of the first support plate is connected to the base, the upper end of the first support plate is provided with a second alignment identification block corresponding to the first alignment identification block, the support shaft passes through the upper end of the first support plate, a gasket is connected to the outer side of the support shaft, a nut is provided on one side of the gasket, and the nut is threadedly connected to the support shaft. The above design can provide stable support for the mixing tank and its connecting parts, facilitate the tipping of the mixing tank, and provide a reference for the return of the mixing tank after tipping.

[0009] As a further configuration of the above scheme, a second drain pipe is provided on one side of the first drain pipe, a first solenoid valve and a second solenoid valve are respectively provided at one end of the first drain pipe and the second drain pipe close to the stirring tank, a filter is connected to one end of the second drain pipe away from the stirring tank, a transition pipe is connected to one end of the filter away from the second drain pipe, and a connecting pipe is connected to one end of the transition pipe away from the filter. The above design can discharge the flocculated sediment and the supernatant from the stirring tank respectively through the first drain pipe and the second drain pipe, can filter out excess impurities in the supernatant, and facilitates cleaning and maintenance of the filter.

[0010] As a further configuration of the above scheme, a third liquid inlet pipe is connected to one side of the second cover, the third liquid inlet pipe is connected to the interior of the second cover, a boosting valve is provided at one end of the third liquid inlet pipe, the end of the third liquid inlet pipe away from the second cover is connected to the connecting pipe, a third cover is provided on one side of the second cover, a reverse osmosis membrane filter is connected to the side opposite to the second cover, a drain pipe is provided at the end of the reverse osmosis membrane filter away from the second cover, the drain pipe simultaneously runs through the connecting seat and the interior of the third cover, an outer shell is provided on the outer side of the reverse osmosis membrane filter, and an outer shell is provided on the outer side of the reverse osmosis membrane filter. The above design facilitates the discharge of the supernatant in the stirring tank into the osmotic filtration mechanism for further filtration and impurity removal, and facilitates the assembly and maintenance of the various components in the osmotic filtration mechanism.

[0011] As a further arrangement of the above scheme, the two ends of the shell are respectively connected to the second cover and the third cover, a third drain pipe is connected below one end of the shell close to the third cover, a third solenoid valve is arranged at one end of the third drain pipe, two second support plates are symmetrically connected to the outside of the shell, and the lower end of the second support plate is connected to the base. The above design can discharge the printing and dyeing wastewater remaining in the osmotic filtration mechanism when cleaning and maintaining the osmotic filtration mechanism, can provide stable support for the osmotic filtration mechanism, and ensure the smooth operation of the osmotic filtration mechanism. Beneficial Effects

[0012] During use of the utility model, the split design of the flocculation mechanism and the osmosis filtration mechanism makes it easy to select one of the mechanisms or a combination of the two mechanisms according to the impurity content and treatment requirements of the printing and dyeing wastewater, thereby enriching the usage mode and application scope of the device and improving the utilization rate of the device. The combination of the bracket in the flocculation mechanism and the two first support plates provides support for the stirring tank and facilitates the tipping and straightening of the stirring tank, and facilitates the cleaning of the inner wall and the stirring rod of the stirring tank. The design of the two liquid inlet pipes above the first cover makes it easy to inject the printing and dyeing wastewater and the flocculant into the stirring tank at the same time. The combination of the first drain pipe and the second drain pipe can discharge the flocculated sediment and the supernatant from the stirring tank respectively. The use of the filter can filter out impurities in the supernatant during the process of the supernatant being discharged from the stirring tank. The detachable design of the two covers and the reverse osmosis membrane filter element in the osmosis filtration mechanism makes it easy to install, clean and maintain the reverse osmosis membrane filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 is a perspective view of the utility model;

[0015] Figure 2 It is a structural perspective view of the flocculation mechanism in the utility model;

[0016] Figure 3 It is a combined diagram of the stirring tank, the first liquid discharge pipe and the second liquid discharge pipe of the utility model;

[0017] Figure 4 It is a perspective view of the permeation filtration mechanism in the utility model.

[0018] In the figure: 1, base; 2, flocculation mechanism; 3, osmotic filtration mechanism; 4, controller; 21, stirring tank; 211, handle; 22, first cover; 221, first liquid inlet pipe; 222, second liquid inlet pipe; 23, motor; 231, stirring rod; 24, bracket; 241, support shaft; 242, gasket; 243, nut; 244, first alignment identification block; 25, first support plate; 251, second alignment identification block, 26. First liquid discharge pipe; 261. First solenoid valve; 27. Second liquid discharge pipe; 271. Second solenoid valve; 272. Filter screen; 273. Transition pipe; 274. Connecting pipe; 31. Second sealing cover; 311. Third liquid inlet pipe; 312. Booster valve; 32. Third sealing cover; 33. Reverse osmosis membrane filter element; 331. Drain pipe; 34. Casing; 35. Third liquid discharge pipe; 351. Third solenoid valve; 36. Second support plate. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0020] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Figures 1 to 4 , and describes the application in detail with reference to embodiments.

[0021] The embodiment discloses a printing and dyeing wastewater recycling and treatment device, including a base 1 and a flocculation mechanism 2, wherein the flocculation mechanism 2 is arranged above the base 1, and an osmosis filtration mechanism 3 is arranged on one side of the flocculation mechanism 2, the flocculation mechanism 2 includes a stirring tank 21, a first cover 22, a stirring rod 231, a bracket 24 and a first support plate 25, and the osmosis filtration mechanism 3 includes a second cover 31, a reverse osmosis membrane filter element 33, a shell 34 and a second support plate 36.

[0022] like Figure 1 As shown, a controller 4 is provided on one side above the base 1 to facilitate the control of the operation of relevant components in the device and ensure the smooth recovery and treatment of printing and dyeing wastewater by the device.

[0023] like Figure 1 and Figure 2 As shown, a handle 211 is connected to the lower end of the stirring tank 21, a first cover 22 is connected to the upper end of the stirring tank 21, a motor 23 is connected to the middle of the first cover 22, a first liquid inlet pipe 221 and a second liquid inlet pipe 222 are respectively provided on both sides of the motor 23, a stirring rod 231 is connected to the output end of the motor 23, the lower end of the stirring rod 231 is connected to the bottom of the stirring tank 21, a bracket 24 is connected to the outside of the stirring tank 21, and a first liquid discharge pipe 26 is connected to the lower end of the stirring tank 21, which can provide a gripping point for workers during the cleaning process of the stirring tank 21, facilitate the dumping and straightening of the stirring tank 21, facilitate the cleaning of the stirring tank 21 and the stirring rod 231, and facilitate the injection of printing and dyeing wastewater and flocculant into the stirring tank 21 and fully mix them, thereby improving the efficiency of flocculation and sedimentation.

[0024] like Figure 1 and Figure 2 As shown, first alignment identification blocks 244 are provided on both sides of the bracket 24, and support shafts 241 are connected to both sides of the bracket 24. A first support plate 25 is provided on the outer side of the support shaft 241, and the lower end of the first support plate 25 is connected to the base 1, and the upper end of the first support plate 25 is provided with a second alignment identification block 251 corresponding to the first alignment identification block 244. The support shaft 241 passes through the upper end of the first support plate 25, and a gasket 242 is connected to the outer side of the support shaft 241. A nut 243 is provided on one side of the gasket 242, and the nut 243 is threadedly connected to the support shaft 241, which can provide stable support for the mixing tank 21 and its connecting parts, facilitate the tipping of the mixing tank 21, and provide a reference for the return of the mixing tank 21 after tipping.

[0025] like Figure 1 , Figure 2 and Figure 3As shown, a second drain pipe 27 is provided on one side of the first drain pipe 26, and a first solenoid valve 261 and a second solenoid valve 271 are respectively provided at one end of the first drain pipe 26 and the second drain pipe 27 close to the stirring tank 21, and a filter screen 272 is connected to one end of the second drain pipe 27 away from the stirring tank 21, and a transition pipe 273 is connected to one end of the filter screen 272 away from the second drain pipe 27, and a connecting pipe 274 is connected to one end of the transition pipe 273 away from the filter screen 272. The flocculated precipitate and the supernatant can be discharged from the stirring tank 21 through the first drain pipe 26 and the second drain pipe 27, respectively, and excess impurities in the supernatant can be filtered, so that the filter screen 272 can be cleaned and maintained conveniently.

[0026] like Figure 1 and Figure 4 As shown, a third liquid inlet pipe 311 is connected to one side of the second cover 31, and the third liquid inlet pipe 311 is connected to the interior of the second cover 31. A boosting valve 312 is provided at one end of the third liquid inlet pipe 311. The end of the third liquid inlet pipe 311 away from the second cover 31 is connected to the connecting pipe 274. A third cover 32 is provided on one side of the second cover 31. A reverse osmosis membrane filter element 33 is connected to the side opposite to the second cover 31 and the third cover 32. A drain pipe 331 is provided at the end of the reverse osmosis membrane filter element 33 away from the second cover 31. The drain pipe 331 simultaneously runs through the interior of the connecting seat and the third cover 32. An outer shell 34 is provided on the outer side of the reverse osmosis membrane filter element 33. An outer shell 34 is provided on the outer side of the reverse osmosis membrane filter element 33, so as to facilitate the discharge of the supernatant in the stirring tank 21 into the osmotic filtration mechanism 3 for further filtration and impurity removal, and facilitate the assembly and maintenance of the various components in the osmotic filtration mechanism 3.

[0027] like Figure 1 and Figure 4 As shown, the two ends of the shell 34 are respectively connected to the second cover 31 and the third cover 32, and a third drain pipe 35 is connected below one end of the shell 34 close to the third cover 32. A third solenoid valve 351 is provided at one end of the third drain pipe 35. Two second support plates 36 are symmetrically connected to the outer side of the shell 34, and the lower end of the second support plate 36 is connected to the base 1. The above design can discharge the printing and dyeing wastewater remaining in the osmotic filtration mechanism 3 when cleaning and maintaining the osmotic filtration mechanism 3, and can provide stable support for the osmotic filtration mechanism 3 to ensure the smooth operation of the osmotic filtration mechanism 3.

[0028] The printing and dyeing wastewater recycling and treatment device disclosed in this embodiment is used to connect the first drain pipe 26 to the external sewage tank before use, connect the drain pipe 331 to the external water pipe, and inject a sufficient amount of printing and dyeing wastewater and flocculant into the stirring tank 21 through the first liquid inlet pipe 221 and the second liquid inlet pipe 222 respectively. The motor 23 is started by the controller 4, so that the motor 23 drives the stirring rod 231 to rotate to fully mix the printing and dyeing wastewater and the flocculant. After standing for a period of time, the first electromagnetic valve 261 is opened by the controller 4, and the first drain pipe 221 is connected to the external sewage tank. The first drain pipe 221 is connected to the external water pipe, and the first liquid inlet pipe 222 is connected to the stirring tank 21. The liquid pipe 26 discharges the lower layer of flocculated sediment in the stirring tank 21 out of the stirring tank 21. When supernatant liquid appears at the pipe mouth of the first liquid discharge pipe 26, the first solenoid valve 261 is immediately closed, and the second solenoid valve 271, the boost valve 312 and the third solenoid valve 351 are opened. The supernatant liquid is discharged into the outer shell 34 through the second liquid discharge pipe 27 and its connecting pipe 274, and filtered and removed by the reverse osmosis membrane filter element 33. The wastewater after filtration and removal of impurities enters the interior of the reverse osmosis membrane filter element 33 and is discharged into the external water pipe through the drain pipe 331.

[0029] When the flocculation mechanism 2 needs to be cleaned, the sediment and supernatant in the stirring tank 21 need to be drained, the connection between the transition pipe 273 and the filter screen 272 is disconnected, the connection between the filter screen 272 and the second drainage pipe 27 is disconnected, the two nuts 243 are loosened, the handle 211 is held, the stirring tank 21 is tilted at a certain angle, the connection between the motor 23 and the stirring rod 231 is disconnected, and the first cover 22 together with the motor 23 is removed from the top of the stirring tank 21, and then the inner wall of the stirring tank 21, the stirring rod 231 and the filter screen 272 and other components can be cleaned. After the cleaning is completed, the connection between the first cover 22 and the stirring tank 21 is restored, the connection between the motor 23 and the stirring rod 231 is restored, and the stirring tank 21 is returned to the right position. When the first return mark block and the second return mark block are aligned, the two nuts 243 are tightened, the filter screen 272 is connected to the second drainage pipe 27, and the two ends of the transition pipe 273 are respectively connected to the connecting pipe 274 and the filter screen 272, and the next batch of printing and dyeing wastewater treatment operations can be carried out.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A printing and dyeing wastewater recovery and treatment device, comprising a base and a flocculation mechanism, characterized in that: A flocculation mechanism is arranged above the base, and an osmotic filtration mechanism is arranged on one side of the flocculation mechanism. The flocculation mechanism includes a stirring tank, a first cover, a stirring rod, a bracket and a first support plate, and the osmotic filtration mechanism includes a second cover, a reverse osmosis membrane filter element, a shell and a second support plate.

2. A printing and dyeing wastewater recycling and treatment device according to claim 1, characterized in that: A controller is arranged on one side above the base.

3. The printing and dyeing wastewater recycling and treatment device according to claim 1 is characterized in that: A handle is connected to the lower end of the stirring tank, a first cover is connected to the upper end of the stirring tank, a motor is connected to the middle of the first cover, a first liquid inlet pipe and a second liquid inlet pipe are respectively provided on both sides of the motor, a stirring rod is connected to the output end of the motor, the lower end of the stirring rod is connected to the bottom of the stirring tank, a bracket is connected to the outside of the stirring tank, and a first liquid discharge pipe is connected to the lower end of the stirring tank.

4. A printing and dyeing wastewater recycling and treatment device according to claim 3, characterized in that: A first alignment identification block is provided on both sides of the bracket, a support shaft is connected to both sides of the bracket, a first support plate is provided on the outer side of the support shaft, the lower end of the first support plate is connected to the base, and a second alignment identification block corresponding to the first alignment identification block is provided on the upper end of the first support plate, the support shaft passes through the upper end of the first support plate, a gasket is connected to the outer side of the support shaft, a nut is provided on one side of the gasket, and the nut is threadedly connected to the support shaft.

5. The printing and dyeing wastewater recycling and treatment device according to claim 3 is characterized in that: A second drain pipe is arranged on one side of the first drain pipe, and a first solenoid valve and a second solenoid valve are respectively arranged on one end of the first drain pipe and the second drain pipe close to the stirring tank, a filter is connected to one end of the second drain pipe away from the stirring tank, a transition pipe is connected to one end of the filter away from the second drain pipe, and a connecting pipe is connected to one end of the transition pipe away from the filter.

6. The printing and dyeing wastewater recycling and treatment device according to claim 1 is characterized in that: A third liquid inlet pipe is connected to one side of the second cover, the third liquid inlet pipe is communicated with the interior of the second cover, a boosting valve is provided at one end of the third liquid inlet pipe, an end of the third liquid inlet pipe away from the second cover is connected to the connecting pipe, a third cover is provided on one side of the second cover, a reverse osmosis membrane filter is connected to the side opposite to the second cover, a drain pipe is provided at one end of the reverse osmosis membrane filter away from the second cover, the drain pipe runs through the interior of the connecting seat and the third cover at the same time, and a shell is provided on the outside of the reverse osmosis membrane filter.

7. A printing and dyeing wastewater recycling and treatment device according to claim 6, characterized in that: The two ends of the shell are connected to the second cover and the third cover respectively, a third liquid discharge pipe is connected below one end of the shell close to the third cover, a third solenoid valve is arranged at one end of the third liquid discharge pipe, two second support plates are symmetrically connected to the outer side of the shell, and the lower end of the second support plate is connected to the base.

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