Wastewater zero discharge device in gravure printing industry

Abstract

The utility model discloses a waste water zero-discharge device in gravure printing industry, which comprises a zero-discharge component, and the zero-discharge component comprises a water inlet pipe, a chromium remover, a nickel remover, a copper remover, a conveying pipe, a filter, a reverse osmosis unit, a water return tank and an evaporator; the chromium remover, the nickel remover and the copper remover are respectively fixed at one ends of the corresponding water inlet pipes, the conveying pipe is fixed among the other ends of the chromium remover, the nickel remover and the copper remover, the filter is fixed at the output end of the conveying pipe, the reverse osmosis unit is positioned outside the filter, and the water return tank is positioned outside the reverse osmosis unit in the horizontal transverse direction. And the evaporator is positioned on the horizontal and vertical outer side of the reverse osmosis unit. According to the utility model, the zero-discharge assembly is arranged, and the advanced treatment equipment, the filter, the reverse osmosis unit and the evaporator are added, so that wastewater in the gravure printing industry is subjected to a series of advanced treatments such as reduction, filtration, reverse osmosis and evaporation, and the aim of really recycling and zero-discharge water is fulfilled.

Description

Technical Field

[0001] This utility model relates to the field of gravure printing plate making technology, and in particular to a zero-discharge device for wastewater in the gravure printing plate making industry. Background Technology

[0002] In the process of continuous economic and social development, industrial development plays a huge role. With the transformation of the times, the traditional extensive industrial development model is no longer suitable for the trend of the times. In the contemporary industrial field, environmental protection concepts are being deeply integrated into the development philosophy of enterprises. For the gravure printing plate making industry, especially the electroplating process in plate making, the wastewater generated in this process, if discharged directly without a series of process treatments, will cause major pollution to the natural environment and trigger environmental pollution incidents.

[0003] Currently, most wastewater treatment methods employ neutralization chemical coagulation and sedimentation, which only eliminates heavy metal ions in the wastewater. However, they cannot completely remove salts and surfactants from the water, achieving only partial reuse or compliance with discharge standards. This does not truly achieve the goal of reuse or zero discharge. Therefore, it is necessary to propose a zero-discharge device for wastewater in the gravure printing plate making industry. Utility Model Content

[0004] The purpose of this invention is to provide a zero-discharge device for wastewater in the gravure printing plate making industry, in order to solve the problem mentioned in the background art that most of the existing wastewater treatment methods use neutralization chemical coagulation and sedimentation, which only removes heavy metal ions from the wastewater, but cannot completely remove salt and surfactants in the water, and can only achieve partial reuse or discharge in compliance with standards, but cannot truly achieve the purpose of reuse or zero discharge.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a zero-discharge wastewater device for the gravure printing plate making industry, comprising:

[0007] The zero-emission assembly includes an inlet pipe, a chromium remover, a nickel remover, a copper remover, a delivery pipe, a filter, a reverse osmosis unit, a return water tank, and an evaporator. The inlet pipes are arranged as a set. The chromium remover, nickel remover, and copper remover are respectively fixed to one end of the corresponding inlet pipe. The delivery pipe is fixed between the other ends of the chromium remover, nickel remover, and copper remover. The filter is fixed to the output end of the delivery pipe. The reverse osmosis unit is located outside the filter. The return water tank is located outside the horizontal direction of the reverse osmosis unit. The evaporator is located outside the horizontal direction of the reverse osmosis unit.

[0008] Furthermore, each of the chromium remover, nickel remover, and copper remover is fixedly connected to a liquid inlet pipe at its top, and a discharge pipe is fixedly connected between one end of each of the chromium remover, nickel remover, and copper remover, with the discharge pipe located below the water inlet pipe.

[0009] Further, the filter, the reverse osmosis device, the backwater tank and the reverse osmosis device and the evaporator are fixedly connected with transmission pipes, and the evaporator and the backwater tank are fixedly connected with a backwater pipe.

[0010] Further, the exhaust assembly is further included.

[0011] The exhaust assembly includes a motor, a connecting rod, connecting plates and a slope, the motor is fixed to the top end of the evaporator, the connecting rod is rotatably connected to the center of the evaporator, the output end of the motor is fixedly connected to the top end of the connecting rod, the connecting plates are fixed to the bottom end of the connecting rod, the connecting plates are arranged in a group, and the slope is arranged on one side of the bottom surface of the evaporator.

[0012] Further, the evaporator is fixedly connected with an exhaust frame at the bottom end, and the inside of the exhaust frame is communicated with the inside of the evaporator.

[0013] Further, the exhaust frame is fixedly connected with a sealing block at the outer side end, the sealing block is fixedly connected with a mounting plate at the outer side end, and the inner side surface of the mounting plate is magnetically attracted to the outer side end of the exhaust frame.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] Firstly, the zero-emission assembly is arranged, the depth treatment equipment, the filter, the reverse osmosis device and the evaporator are increased, the gravure printing plate industry wastewater is subjected to a series of depth treatments such as reduction, filtration, reverse osmosis and evaporation, and thus the purpose of truly water recycling and zero emission is achieved.

[0016] Secondly, based on the beneficial effect one, when the evaporator further evaporates the treated wastewater, the crystalline body is generated in the evaporator, when the distilled water is transported into the backwater tank, the motor drives the connecting plates to rotate through the connecting rod, the connecting plates drive the crystalline body to move to the slope in the process, the crystalline body enters the exhaust frame through the slope, and finally the crystalline body is discharged outward through the exhaust frame, so that the crystalline body in the evaporator is conveniently collected by the staff without using other tools to collect the crystalline body in the evaporator. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without paying creative labor.

[0018] Figure 1 It is the appearance structure schematic diagram of the utility model;

[0019] Figure 2 It is the utility modelFigure 1 Another side structure schematic view;

[0020] Figure 3 The discharge assembly structure schematic view of the utility model is shown in the figure;

[0021] Figure 4 The internal structure schematic view of the evaporating tank of the utility model is shown in the figure.

[0022] In the drawings, the component list represented by each reference numeral is as follows:

[0023] 11, water inlet pipe; 112, liquid adding pipe; 113, discharge pipe; 12, chromium remover; 13, nickel remover; 14, copper remover; 15, conveying pipe; 16, filter; 17, reverse osmosis device; 18, water return tank; 19, evaporator; 191, transmission pipe; 192, water return pipe; 21, motor; 22, connecting rod; 23, connecting plate; 24, slope; 25, discharge frame; 26, sealing block; 27, mounting plate. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent, comprehensible and easy to understand, the specific implementation manners of the utility model will be described in detail below with reference to the drawings.

[0025] In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description herein, and those skilled in the art can make similar generalization without departing from the connotation of the utility model, so the utility model is not limited by the specific implementation manners disclosed below.

[0026] In order to make the purpose, technical scheme and advantages of the utility model more clear, the implementation manners of the utility model will be described in further detail below with reference to the drawings.

[0027] Please refer to Figures 1-2 The embodiment is a kind of concave printing plate making industry wastewater zero discharge device, including:

[0028] Zero discharge assembly, zero discharge assembly includes water inlet pipe 11, chromium remover 12, nickel remover 13, copper remover 14, conveying pipe 15, filter 16, reverse osmosis device 17, water return tank 18 and evaporator 19;Water inlet pipe 11 is a group of settings, chromium remover 12, nickel remover 13 and copper remover 14 are respectively fixed in the one end of corresponding water inlet pipe 11, conveying pipe 15 is fixed between the other end of chromium remover 12, nickel remover 13 and copper remover 14, filter 16 is fixed in the output end of conveying pipe 15, reverse osmosis device 17 is located in the lateral side of filter 16, water return tank 18 is located in the horizontal lateral side of reverse osmosis device 17, evaporator 19 is located in the horizontal vertical side of reverse osmosis device 17;

[0029] The water inlet pipe 11 is used for the wastewater in the gravure printing plate industry to enter the corresponding chromium removal device 12, nickel removal device 13 and copper removal device 14. The chromium removal device 12, nickel removal device 13 and copper removal device 14 adopt the neutralization + coagulation chemical method for treatment, so that the copper and nickel ions form nickel hydroxide and copper hydroxide precipitates, thereby achieving the purpose of removing the nickel ions and copper ions. The delivery pipe 15 is used for delivering the wastewater treated initially into the filter 16. The filter 16 mainly removes the SS, heavy metals, fine colloids and surfactants in the wastewater, so as to achieve the purpose of purification.

[0030] The reverse osmosis device 17. The thin film with selectivity to the permeated substance is called a semi-permeable membrane. Generally, the thin film that can only permeate the solvent but not the solute is called an ideal semi-permeable membrane. Reverse osmosis is a kind of reverse migration movement of osmosis. It is a separation method for separating the solute from the solvent in the solution under the driving of pressure by means of the selective interception of the semi-permeable membrane. The reverse osmosis technology is used to remove the impurities such as inorganic ions, bacteria, viruses, organic matters and colloids in the raw water, so as to obtain high-quality pure water and achieve the purpose of reuse.

[0031] The water return tank 18 is used for collecting the water treated. The evaporator 19 is used for the reverse osmosis brine to enter. The reverse osmosis concentrated water high-salt wastewater enters the evaporator 19. After the high-salt solution is heated, part of the solvent in the solution is vaporized and removed. Since the solution to be evaporated is mostly an aqueous solution, the evaporation process becomes a process of condensing the vapor and liquid to form distilled water for reuse.

[0032] The chromium removal device 12, nickel removal device 13 and copper removal device 14 are fixedly connected with the liquid adding pipe 112 at the top ends. The chromium removal device 12, nickel removal device 13 and copper removal device 14 are fixedly connected with the discharge pipe 113 at one end. The discharge pipe 113 is located below the water inlet pipe 11.

[0033] The liquid adding pipe 112 is used for other medicaments to enter the chromium removal device 12, nickel removal device 13 and copper removal device 14, so that the chromium removal device 12, nickel removal device 13 and copper removal device 14 adopt the neutralization + coagulation chemical treatment method. The discharge pipe 113 is used for delivering the sludge precipitate formed by nickel, copper and chromium to the plate-and-frame filter press for pressure filtration and dewatering. The filter cake of the pressure filtration is outsourced for resource recycling.

[0034] The filter 16, reverse osmosis device 17 and water return tank 18 are fixedly connected with the transmission pipe 191. The reverse osmosis device 17 and evaporator 19 are fixedly connected with the transmission pipe 191. The evaporator 19 and water return tank 18 are fixedly connected with the water return pipe 192.

[0035] The transmission pipe 191 is used for the wastewater treated to enter the next treatment device. The water return pipe 192 is used for the distilled water treated by the evaporator 19 to enter the water return tank 18.

[0036] Working principle: when the assembly is in use, the gravure plate making industry wastewater enters the corresponding chromium remover 12, nickel remover 13 and copper remover 14, so that the chromium remover 12, nickel remover 13 and copper remover 14 adopt the neutralization + neutralization coagulation chemical treatment method to preliminarily treat the gravure plate making industry wastewater, the preliminarily treated wastewater enters the filter 16 through the conveying pipe 15, so that the filter 16 performs secondary treatment on the preliminarily treated wastewater, the secondary treated wastewater enters the reverse osmosis device 17 through the transmission pipe 191, so that the reverse osmosis device 17 further treats the secondary treated wastewater, and the water treated by the reverse osmosis device 17 enters the water return tank 18 through the transmission pipe 191. At the same time, the concentrated water after reverse osmosis enters the evaporator 19 through the transmission pipe 191. The evaporator 19 heats the high-salt solution, so that part of the solvent in the high-salt solution vaporizes and is removed. Since the evaporated solution is mostly aqueous solution, evaporation becomes vapor-liquid, and distilled water is formed by condensation. The distilled water enters the water return tank 18 through the water return pipe 192. At the same time, the nickel, copper and chromium form sludge sediment which is transported to the plate and frame filter press through the discharge pipe 113 for pressure filtration and dewatering, and the mud cake after pressure filtration is outsourced for resource recycling.

[0037] After the above steps, the series of deep treatment is realized, and the purpose of truly water reuse zero discharge is achieved.

[0038] Please refer to Figure 1 、 Figures 3-4 , the embodiment further includes:

[0039] a discharge assembly;

[0040] The discharge assembly includes a motor 21, a connecting rod 22, a connecting plate 23 and a slope 24. The motor 21 is fixed to the top end of the evaporator 19, the connecting rod 22 is rotatably connected to the center of the inside of the evaporator 19, the output end of the motor 21 is fixedly connected to the top end of the connecting rod 22, the connecting plate 23 is fixed to the bottom end of the connecting rod 22, the connecting plate 23 is arranged in a group, and the slope 24 is arranged on one side of the bottom surface of the inside of the evaporator 19.

[0041] The motor 21 drives the connecting rod 22 through the output end, the connecting rod 22 is used to drive the connecting plate 23 to rotate, the connecting plate 23 is used to drive the crystal to the slope 24, and the slope 24 is used for the crystal to enter the discharge frame 25.

[0042] The evaporator 19 is fixedly connected with a discharge frame 25 at the bottom end, and the inside of the discharge frame 25 is communicated with the inside of the evaporator 19.

[0043] When the motor 21 is started, the motor 21 drives the connecting rod 22 to rotate through the output end, so that the connecting rod 22 drives the bottom end connecting plate 23 to rotate together, so that the connecting plate 23 pushes the crystal to the slope 24 in the rotating process, and the crystal enters the discharge frame 25 through the slope 24.

[0044] The sealing block 26 is fixedly connected with the mounting plate 27 at the outer side end of the discharge frame 25.

[0045] The sealing block 26 is used for sealing the inside of the discharge frame 25 when idle, and the mounting plate 27 is used for taking out the sealing block 26.

[0046] Working principle: when the assembly is not used, the sealing block 26 is connected with the inside of the outer side end of the discharge frame 25, when the assembly is used, the mounting plate 27 is taken by hand, so that the mounting plate 27 drives the sealing block 26 to leave the inside of the discharge frame 25, then the motor 21 is started, the motor 21 drives the connecting rod 22 to rotate through the output end, so that the connecting rod 22 drives the bottom connecting plate 23 to rotate together, the connecting plate 23 pushes the crystal to the slope 24 in the rotating process, so that the crystal enters the discharge frame 25 through the slope 24, finally, the crystal leaves the evaporator 19 through the discharge frame 25, so as to facilitate the work personnel to collect the crystal in the evaporator 19.

[0047] The above steps can improve the functionality of the assembly.

[0048] In the description of the utility model, it should be explained that, unless otherwise specified and limited, the terms "setting", "installing", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the above terms can be understood according to the specific meaning of the terms in the utility model.

[0049] Finally, it should be pointed out that: the above only for the preferred embodiment of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical scheme recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A device for zero discharge of wastewater in the gravure printing industry, characterized in that, Include: Zero emission components, the zero emission components include water inlet pipe (11), chromium remover (12), nickel remover (13), copper remover (14), conveying pipe (15), filter (16), reverse osmosis device (17), backwater tank (18) and evaporator (19), the water inlet pipe (11) is a group of settings, chromium remover (12), nickel remover (13) and copper remover (14) are fixed at the one end of corresponding water inlet pipe (11), conveying pipe (15) is fixed between the other end of chromium remover (12), nickel remover (13) and copper remover (14), filter (16) is fixed at the output end of conveying pipe (15), reverse osmosis device (17) is located at the outside of filter (16), backwater tank (18) is located at the horizontal lateral outside of reverse osmosis device (17), evaporator (19) is located at the horizontal vertical outside of reverse osmosis device (17).

2. A device for zero discharge of wastewater from the gravure printing industry according to claim 1, characterized in that, The top end of chromium remover (12), nickel remover (13) and copper remover (14) is fixedly connected with liquid adding pipe (112), and the one end of chromium remover (12), nickel remover (13) and copper remover (14) is fixedly connected with discharge pipe (113), and the discharge pipe (113) is located below the water inlet pipe (11).

3. A device for zero discharge of wastewater from the gravure printing industry as claimed in claim 1 wherein, The filter (16), reverse osmosis device (17), backwater tank (18) and reverse osmosis device (17), evaporator (19) are fixedly connected with transmission pipe (191), and the evaporator (19) and backwater tank (18) are fixedly connected with backwater pipe (192).

4. A gravure engraving industry wastewater zero discharge device according to claim 1, characterized in that, Also include discharge assembly; The discharge assembly includes motor (21), connecting rod (22), connecting plate (23) and slope (24), the motor (21) is fixed at the top end of evaporator (19), the connecting rod (22) is rotatably connected to the inside central of evaporator (19), the output end of motor (21) is fixedly connected with the top end of connecting rod (22), the connecting plate (23) is fixedly connected with the bottom end of connecting rod (22), the connecting plate (23) is a group of settings, and the slope (24) is arranged on one side of the bottom surface of evaporator (19).

5. A gravure engraving industry wastewater zero discharge device according to claim 1, characterized in that, The bottom end of evaporator (19) is fixedly connected with discharge frame (25), and the inside of discharge frame (25) is communicated with the inside of evaporator (19).

6. A gravure printing industry wastewater zero discharge device according to claim 5, characterized in that, The outside end of discharge frame (25) is fixedly connected with sealing block (26), the outside end of sealing block (26) is fixedly connected with mounting plate (27), and the inside surface of mounting plate (27) is magnetically attracted to the outside end of discharge frame (25).

Images