Green and environment-friendly printing ink waste liquid recovery treatment device and treatment method thereof

Abstract

The invention relates to the technical field of ink environment-friendly treatment, in particular to an ink waste liquid recovery treatment device for green and environment-friendly printing and a treatment method thereof. Comprising an inner box body, a first working cavity, a second working cavity and a third working cavity are sequentially formed in the inner box body from top to bottom, and a first blocking net, a second blocking net and a third blocking net are arranged at the bottoms of the first working cavity, the second working cavity and the third working cavity respectively; grid gaps of the first blocking net, the second blocking net and the third blocking net are sequentially reduced in an equal difference mode. And liquid passing units are spirally arranged on the periphery of the inner box body. Through a layered and step-by-step crushing mode, the volume balance of waste residues is ensured, different treatment modes for different volumes of coagulations within the same time are also ensured, manual operation is not needed in the whole process, multiple filtering procedures do not need to be specially arranged, the crushing effect is improved, the crushing part is protected, and meanwhile the crushing efficiency is improved. And the automation degree and the working smoothness of the device are also improved.

Description

Technical Field

[0001] The invention belongs to the technical field of environmentally friendly ink treatment, and in particular relates to a green environmentally friendly printing ink waste liquid recovery and treatment device and a treatment method thereof. Background Art

[0002] Nowadays, most inks used for printing are green, environmentally friendly and recyclable materials. After the printing process, there are still many recyclable substances in the remaining ink waste liquid for secondary use. In particular, some substances will react with each other to produce condensates after a long period of static and sedimentation. In order to separate the substances that can be reused, professional recycling and treatment of the waste liquid is required.

[0003] After searching, the patent document cited now has the publication number CN116789216A, the publication date of September 22, 2023, and is called a harmless recovery system for printing solvents. It includes a hollow cylindrical treatment box with an opening at the upper end and an air flotation plate installed at the bottom of the treatment box. The air flotation plate is provided with a number of air outlets, and the air flotation plate is connected to an external air supply device. A rotating shaft is installed in the treatment box and coincides with the axis of the treatment box. A filter plate is installed on one side of the rotating shaft. The filter plate is a rectangular mesh plate. The upper end of the filter plate is flush with the opening of the treatment box. The diameter of the holes on the filter plate is smaller than the flocculants and fine particles in the printing solvent. While allowing water to pass through, flocculants and fine particles cannot pass through. A driving mechanism is installed on the treatment box, and the driving mechanism is connected to the rotating shaft and is used to drive the rotating shaft to rotate. The above embodiment utilizes a lifting mechanism to drive the brush plate to move upward, and the brush plate brushes the sediment on the filter plate upward into the slag collecting plate, thereby more comprehensively cleaning the flocculants and fine suspended particles in the printing waste liquid, thereby improving the treatment effect of the flocculants and fine suspended particles in the printing waste liquid.

[0004] However, the above embodiment still has the following defects:

[0005] In order to separate substances of different types and volumes in the above-mentioned embodiment, each substance needs to be processed individually due to its different types and volumes, which consumes a lot of working time and reduces the fluency of work. Summary of the invention

[0006] In view of the above problems, the present invention provides a green and environmentally friendly printing ink waste liquid recovery and treatment device, comprising an inner box, wherein a first working chamber, a second working chamber and a third working chamber are arranged in sequence from top to bottom in the inner box, and a first blocking net, a second blocking net and a third blocking net are arranged at the bottom of the first working chamber, the second working chamber and the third working chamber respectively; the grid gaps of the first blocking net, the second blocking net and the third blocking net are successively reduced in equal steps; a liquid passing unit is spirally arranged around the inner box; the liquid passing unit comprises a vibration plate, a vibration motor is arranged on the vibration plate, a spiral liquid down pipe is installed on the vibration plate, and the spiral liquid down pipe is a spiral structure;

[0007] The spiral liquid discharge pipe is provided with a first discharge port, a second discharge port and a third discharge port in sequence from top to bottom, and the first discharge port, the second discharge port and the third discharge port are respectively inclinedly provided with a first material blocking screen, a second material blocking screen and a third material blocking screen on one side close to the bottom of the spiral liquid discharge pipe, and the output ends of the first discharge port, the second discharge port and the third discharge port are respectively connected to the cavity bodies of the first working chamber, the second working chamber and the third working chamber; the screen densities of the first material blocking screen, the second material blocking screen and the third material blocking screen decrease in sequence.

[0008] Furthermore, the recycling and processing device further comprises an outer box, and the inner box is located on the central axis of the inner cavity of the outer box;

[0009] A plurality of groups of damping shock absorbers are distributed in a ring array at the bottom of the vibration plate.

[0010] Furthermore, a first motor is provided at the top center of the inner box body, and a main rotating shaft is transmission-connected to the output end of the first motor. The bottom of the main rotating shaft vertically penetrates the first working chamber, the second working chamber and the third working chamber in sequence, and a group of powder units are sleeved in the first working chamber, the second working chamber and the third working chamber.

[0011] Furthermore, the powder unit includes a fixed sleeve, which is sleeved on the main rotating shaft, and a plurality of groups of cross bars are arranged at equal intervals from top to bottom on the outer wall of the fixed sleeve, and the plurality of groups of cross bars are distributed in a spiral path, and a plurality of groups of powder nets are distributed in a circular array on the cross bars.

[0012] Furthermore, the powder net includes a mounting frame, on which a plurality of groups of horizontal blades and a plurality of groups of vertical blades are arranged at equal intervals in the vertical and horizontal directions, respectively. The plurality of groups of horizontal blades and the plurality of groups of vertical blades are combined to form a grid structure.

[0013] Furthermore, a purification unit is provided at the bottom of the outer box body, and the purification unit includes an outer bottom box, a feed port is opened at the top of the outer bottom box, and the top of the feed port is connected with the third working chamber through a third blocking net; a conveyor belt is provided in the outer bottom box, and the input end of the conveyor belt is located directly below the feed port, and the output end of the conveyor belt extends horizontally to the outside of the outer bottom box; an inner bottom box is provided directly above the conveyor belt, and a plurality of groups of rotating rods are arranged at equal intervals in the cavity of the inner bottom box along the conveying direction of the conveyor belt, and a debris absorption roller is sleeved on the rotating rod; the debris absorption roller is made of magnetic conductive material.

[0014] Furthermore, an electromagnet is provided in the rotating rod, one end of the rotating rod is transmission-connected to a second motor, the other end of the rotating rod is rotationally connected to a conductive slip ring, and the electromagnet is electrically connected to an electromagnetic adsorption control component through the conductive slip ring; the bottom of the suction roller is slidably fitted with the top of the conveyor belt; a collecting mechanism is provided on one side of the suction roller.

[0015] Furthermore, a material laying component is installed at the bottom edge of the outer wall of the inner bottom box near the feed inlet, and the material laying component includes two groups of crescent plates symmetrically arranged with respect to the central axis of the inner bottom box, and the cross-section of the crescent plates is a fan-shaped structure when viewed from above; a material guiding groove is provided at the bottom of the crescent plates, and the material guiding groove is inclined, and the height of the side close to the central axis of the inner bottom box is higher than that of the other side.

[0016] Furthermore, the collecting mechanism includes a scraper box, which is arranged parallel to the rotating rod and has a debris inlet on the side close to the rotating rod. A debris removal outlet is opened at the bottom of the scraper box, and the bottom of the debris removal outlet is connected to a debris collecting box. A scraper knife is provided at the opening of the debris inlet, one side of the scraper knife is slidably fitted with the debris suction roller, and the other side extends downward to the debris removal outlet.

[0017] A treatment method for a green and environmentally friendly printing ink waste liquid recovery and treatment device, the treatment method comprising:

[0018] The waste liquid is injected into the spiral downpipe. When the waste liquid moves to the first downpipe, the larger condensate is intercepted by the first stop screen.

[0019] Then, as the waste liquid continues to move, the medium-sized and small-sized condensates are intercepted by the second and third blocking screens, respectively;

[0020] After the waste liquid passes through the spiral downpipe, it enters the water collection tank for subsequent purification treatment;

[0021] At the same time, the condensate adsorbed on the first material blocking screen, the second material blocking screen and the third material blocking screen is transported to the first working chamber, the second working chamber and the third working chamber respectively;

[0022] The three groups of condensates classified by volume are crushed and cut simultaneously in the first working chamber, the second working chamber and the third working chamber;

[0023] When the condensate in the first working chamber is cut, its volume becomes smaller and then passes through the first screen into the second working chamber;

[0024] As the condensate in the second working chamber is further cut, its volume continues to shrink and passes through the second screen into the third working chamber;

[0025] After the cutting in the third working chamber is completed, the crushing work is completed to obtain the waste residue of the condensate;

[0026] The metals in the waste slag are extracted to obtain metallic waste slag and non-metallic waste slag respectively.

[0027] The beneficial effects of the present invention are:

[0028] 1. Firstly, the spiral structure of the spiral downpipe is used to prevent the waste liquid from settling or flowing too slowly. Then, the condensate is filtered through the first material blocking screen, the second material blocking screen and the third material blocking screen respectively, and then the condensate is sent to the first working chamber, the second working chamber and the third working chamber in order from large to small for simultaneous crushing. After finishing in the first working chamber, the condensate is sent to the second working chamber, and after finishing in the second working chamber, the condensate is sent to the third working chamber. Through the layered and step-by-step crushing method, the volume of the waste residue is balanced, and different treatment methods for condensates of different volumes are guaranteed at the same time. There is no need for manual operation or multiple filtering processes in the whole process. While improving the crushing effect and protecting the crushing components, the automation degree and working fluency of the device are also improved.

[0029] 2. Several groups of crossbars are arranged at equal intervals from top to bottom and are distributed along a spiral path. This ensures that when each group of crossbars rotates, it can not only ensure that the condensate at each height can be cut, and the powder effect is more three-dimensional, but also make the centrifugal force in each direction of the fixed sleeve more balanced when it rotates. At the same time, the characteristics of the spiral path distribution are used to form a vortex when the whole rotates, so that the condensate can be close to the center and precipitation is avoided.

[0030] 3. The powder net is a grid structure composed of several groups of horizontal blades arranged at equal intervals in the horizontal direction and several groups of vertical blades arranged at equal intervals in the vertical direction, which allows the condensate to be cut into several equal-volume pieces at one time without multiple cuttings, thus shortening the powdering time and improving work efficiency. At the same time, the density of the powder net grids in the first working chamber, the second working chamber and the third working chamber increases in turn, which meets the requirement of simultaneously crushing condensates of different volumes and improves the auxiliary function of the powder unit.

[0031] 4. After the condensate is crushed into waste slag, the suction roller that generates electromagnetic suction through power contacts the evenly laid waste slag, sucks up the metal substances in the waste slag, and then rotates with the rotating rod, and uses the characteristics of sliding fit between one side of the scraper and the suction roller to scrape off the metal waste slag adsorbed on the surface of the suction roller, and then these metal waste slags pass through the slope of the scraper into the collection box. The suction roller with the scraped metal waste slag can continue to absorb the metal substances in the subsequent waste slag as it rotates. This allows metal waste slag and non-metal waste slag to be distinguished, thereby improving the purity of classified recycling.

[0032] 5. After being transported by the conveyor belt to the material laying part, the irregularly stacked waste slag is pushed to both sides by two sets of symmetrically arranged crescent plates. And as the height of one side of the material guide trough close to the central axis of the inner bottom box is higher than that of the other side, the waste slag can be laid more evenly on the surface of the conveyor belt, avoiding the metal waste slag pressed at the bottom from being unable to be adsorbed, thereby improving the sorting effect of the metal waste slag.

[0033] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 A schematic structural diagram of a processing device according to an embodiment of the present invention is shown.

[0036] Figure 2 A cross-sectional schematic diagram of an inner box according to an embodiment of the present invention is shown.

[0037] Figure 3 A schematic structural diagram of a liquid passing unit according to an embodiment of the present invention is shown.

[0038] Figure 4 A cross-sectional schematic diagram of a liquid flow unit according to an embodiment of the present invention is shown.

[0039] Figure 5 A schematic structural diagram of a powder material unit according to an embodiment of the present invention is shown.

[0040] Figure 6A schematic diagram of the connection between the powder net and the cross bar according to an embodiment of the present invention is shown.

[0041] Figure 7 A schematic cross-sectional view of a purification unit according to an embodiment of the present invention is shown.

[0042] Figure 8 A cross-sectional schematic diagram of an inner bottom box according to an embodiment of the present invention is shown.

[0043] Fig. 9 A schematic diagram of the connection between the trash suction roller and the collecting mechanism according to an embodiment of the present invention is shown.

[0044] Fig.10 A bottom view schematically shows a paving component according to an embodiment of the present invention.

[0045] Fig.11 A schematic exploded view of a collecting mechanism according to an embodiment of the present invention is shown.

[0046] Fig.12 A bottom view schematically shows a scraper box according to an embodiment of the present invention.

[0047] In the figure: 100, outer box; 110, inner box; 111, first working chamber; 112, second working chamber; 113, third working chamber; 114, first screen; 115, second screen; 116, third screen; 120, first motor; 130, main shaft; 200, liquid passing unit; 210, vibration plate; 211, damping shock absorber; 220, spiral liquid pipe; 221, liquid inlet bucket; 230, first material discharge port; 231, first material blocking screen; 240, second material discharge port; 241, second material blocking screen; 250, third material discharge port; 251, third material blocking Screen; 300, powder unit; 310, fixed sleeve; 320, cross bar; 330, powder net; 331, installation frame; 332, cross knife bar; 333, vertical knife bar; 400, water collecting box; 500, purification unit; 510, outer bottom box; 511, feed inlet; 520, conveyor belt; 530, inner bottom box; 540, material spreading component; 541, crescent plate; 542, material guiding trough; 550, rotating rod; 560, impurity suction roller; 570, collecting mechanism; 571, impurity scraping box; 572, impurity inlet; 573, impurity scraping knife; 574, impurity removal outlet; 575, impurity collecting box. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] The embodiment of the present invention provides a green and environmentally friendly printing ink waste liquid recovery and treatment device, for example, Figure 1 and Figure 2 As shown, it comprises an outer box 100, an inner box 110 is arranged at the center of the inner cavity of the outer box 100, and a liquid passing unit 200 is arranged in a spiral shape around the inner box 110. The liquid passing unit 200 is used to filter the condensate in the waste liquid.

[0050] The inner box 110 is provided with a first working chamber 111, a second working chamber 112 and a third working chamber 113 from top to bottom, and a first blocking net 114, a second blocking net 115 and a third blocking net 116 are provided at the bottom of the first working chamber 111, the second working chamber 112 and the third working chamber 113, respectively. The first working chamber 111, the second working chamber 112 and the third working chamber 113 are connected in sequence through the first blocking net 114 and the second blocking net 115. The first working chamber 111, the second working chamber 112 and the third working chamber 113 process the condensate filtered out by the liquid passing unit 200 respectively according to the volume size.

[0051] The mesh gaps of the first blocking net 114, the second blocking net 115 and the third blocking net 116 decrease in equal increments in sequence.

[0052] Exemplarily, a first motor 120 is provided at the center of the top of the inner box 110, and a main rotating shaft 130 is drivingly connected to the output end of the first motor 120, and the bottom of the main rotating shaft 130 passes through the first working chamber 111, the second working chamber 112 and the third working chamber 113 in the vertical direction, and a group of powder units 300 are sleeved in the first working chamber 111, the second working chamber 112 and the third working chamber 113. The powder unit 300 is used to break the condensate into waste residue.

[0053] Exemplarily, the bottom of the third working chamber 113 is connected to a purification unit 500 through a third screen 116, and a water collecting tank 400 is provided on one side of the purification unit 500, and the water collecting tank 400 is connected to the bottom of the liquid passing unit 200. The water collecting tank 400 is used to collect filtered waste water. The purification unit 500 is used to classify the treated waste residues for classification and recycling.

[0054] For example, Figure 3and Figure 4 As shown, the liquid passing unit 200 includes a vibration plate 210, the central axis of the vibration plate 210 coincides with the central axis of the inner box 110, a vibration motor is provided on the vibration plate 210, and a plurality of groups of damping shock absorbers 211 are distributed in a circular array at the bottom of the vibration plate 210. A spiral liquid down pipe 220 is installed on the vibration plate 210, and the spiral liquid down pipe 220 is a spiral structure. The top of the spiral liquid down pipe 220 is connected to a liquid inlet hopper 221, and the top of the liquid inlet hopper 221 extends to the top of the outer box 100. The bottom of the spiral liquid down pipe 220 is connected to a bamboo hose, and the other end of the bamboo hose is connected to the water collecting tank 400.

[0055] Exemplarily, the spiral downpipe 220 is provided with a first downpipe 230, a second downpipe 240 and a third downpipe 250 from top to bottom, and the first downpipe 230, the second downpipe 240 and the third downpipe 250 are respectively provided with a first material blocking screen 231, a second material blocking screen 241 and a third material blocking screen 251 on one side close to the bottom of the spiral downpipe 220, and the output ends of the first downpipe 230, the second downpipe 240 and the third downpipe 250 are respectively connected to the first working chamber 111, the second working chamber 112 and the third working chamber 113 through a group of solenoid valves and a group of hoses. The mesh densities of the first material blocking screen 231, the second material blocking screen 241 and the third material blocking screen 251 decrease in equal steps.

[0056] The waste liquid is injected into the spiral liquid down pipe 220 through the liquid inlet hopper 221. When the waste liquid moves to the first material down port 230, the larger condensate is intercepted by the first material blocking screen 231. Then, as the waste liquid continues to move, the medium and smaller condensates are intercepted by the second material blocking screen 241 and the third material blocking screen 251, respectively. After the waste liquid passes through the spiral liquid down pipe 220, it enters the water collecting tank 400 for subsequent purification. At this time, each group of solenoid valves is opened at the same time, and the vibration motor is turned on to allow the condensate adsorbed on the first material blocking screen 231, the second material blocking screen 241 and the third material blocking screen 251 to enter the first working chamber 111, the second working chamber 112 and the third working chamber 113, respectively. Then the first motor 120 is started, and the main rotating shaft 130 and each group of powder units 300 are driven to rotate simultaneously by the first motor 120, so that each group of powder units 300 simultaneously crushes the three volumes of condensate. When the condensate in the first working chamber 111 is cut, its volume becomes smaller, and then it passes through the first screen 114 into the second working chamber 112. Then, as the condensate in the second working chamber 112 is further cut, its volume continues to shrink, and it passes through the second screen 115 into the third working chamber 113. After the cutting in the third working chamber 113 is completed, the crushing work is completed, and the waste residue of the condensate is obtained. Then, the waste residue passes through the third screen 116 and enters the purification unit 500 for the next step of processing.

[0057] For example, Figure 5 and Figure 6 As shown, the powder unit 300 includes a fixed sleeve 310, which is sleeved on the main rotating shaft 130. A plurality of groups of cross bars 320 are arranged at equal intervals from top to bottom on the outer wall of the fixed sleeve 310. The plurality of groups of cross bars 320 are distributed in a spiral path, and a plurality of groups of powder nets 330 are distributed in a circular array on the cross bars 320.

[0058] Exemplarily, the powder net 330 includes a mounting frame 331, on which a plurality of groups of horizontal blades 332 and a plurality of groups of vertical blades 333 are arranged at equal intervals in the vertical and horizontal directions, respectively. The plurality of groups of horizontal blades 332 and the plurality of groups of vertical blades 333 are combined to form a grid structure.

[0059] Specifically, the mesh densities of the powder net 330 in the first working chamber 111 , the second working chamber 112 , and the third working chamber 113 increase in sequence in equal increments.

[0060] The plurality of groups of crossbars 320 are arranged at equal intervals from top to bottom and are distributed along a spiral path, which ensures that the condensate at each height can be cut when each group of crossbars rotates, making the powder effect more three-dimensional, and also makes the centrifugal force in each direction of the fixed sleeve 310 more balanced when it rotates. At the same time, the spiral path distribution characteristics are utilized to form a vortex when the whole rotates, so that the condensate can be moved closer to the center and sedimentation is avoided.

[0061] The powder net 330 is a grid structure composed of a plurality of groups of horizontal blades 332 arranged at equal intervals in the horizontal direction and a plurality of groups of vertical blades 333 arranged at equal intervals in the vertical direction, which allows the condensate to be cut into a plurality of equal-volume fragments at one time without multiple cuttings, thus shortening the powdering time and improving the work efficiency. At the same time, the mesh density of the powder net 330 in the first working chamber 111, the second working chamber 112 and the third working chamber 113 increases in turn, which meets the requirement of simultaneously crushing condensates of different volumes and improves the auxiliary function of the powder unit 300.

[0062] For example, Figure 7 , Figure 8 and Fig. 9As shown, the purification unit 500 includes an outer bottom box 510, and a feed port 511 is provided at the top of the outer bottom box 510. The top of the feed port 511 is connected to the third working chamber 113 through the third blocking net 116. A conveyor belt 520 is provided inside the outer bottom box 510, and the input end of the conveyor belt 520 is located directly below the feed port 511, and the output end of the conveyor belt 520 extends horizontally to the outside of the outer bottom box 510. An inner bottom box 530 is provided directly above the conveyor belt 520, and a plurality of groups of rotating rods 550 are arranged at equal intervals in the cavity of the inner bottom box 530 along the conveying direction of the conveyor belt 520, and a dirt suction roller 560 is sleeved on the rotating rod 550. The dirt suction roller 560 is made of magnetic conductive material.

[0063] Exemplarily, an electromagnet is provided in the rotating rod 550, one end of the rotating rod 550 is transmission-connected to a second motor, the other end of the rotating rod 550 is rotationally connected to a conductive slip ring, and the electromagnet is electrically connected to an electromagnetic adsorption control component through the conductive slip ring. The bottom of the suction roller 560 is slidably fitted with the top of the conveyor belt 520. A collecting mechanism 570 is provided on one side of the suction roller 560.

[0064] For example, Figure 7 and Fig.10 As shown, a material spreading component 540 is installed at the bottom edge of the outer wall of the inner bottom box 530 near the feeding port 511. The material spreading component 540 includes two groups of crescent plates 541 symmetrically arranged with respect to the central axis of the inner bottom box 530. The cross section of the crescent plates 541 is a fan-shaped structure when viewed from above. A material guiding groove 542 is provided at the bottom of the crescent plates 541. The material guiding groove 542 is inclined, and the height of the side near the central axis of the inner bottom box 530 is higher than that of the other side.

[0065] For example, Fig.11 and Fig.12 As shown, the collecting mechanism 570 includes a scraper box 571, which is arranged in parallel with the rotating rod 550, and is provided with a debris inlet 572 on the side close to the rotating rod 550. The scraper box 571 has a debris removal opening 574 at the bottom, and the bottom of the debris removal opening 574 is connected to a debris collection box 575. A scraper 573 is provided at the opening of the debris inlet 572, and one side of the scraper 573 is slidably fitted with the debris suction roller 560, and the other side extends downward to the debris removal opening 574.

[0066] When the condensate is crushed into waste residue, it falls onto the conveyor belt 520 below through the third screen 116 and the feed port 511, and then arrives at the paving part 540 through the conveyor belt 520. At this time, two sets of symmetrically arranged crescent plates 541 are used to push the irregularly stacked waste residue to both sides, and as the height of the guide trough 542 on one side close to the central axis of the inner bottom box 530 is higher than that on the other side, the waste residue can be more evenly laid on the surface of the conveyor belt.

[0067] At this time, the second motor and the electromagnetic adsorption control component are turned on, and the second motor drives the rotating rod 550 and the impurity suction roller 560 to rotate. At the same time, the electromagnetic adsorption control component and the conductive slip ring are used to supply power to the electromagnet to generate electromagnetic suction, so that when the impurity suction roller 560 contacts the evenly laid waste slag, all the metal substances in the waste slag are sucked up, and then as the rotating rod 550 rotates, the metal impurity suction roller 560 is scraped off by using the characteristics of the scraper 573 slidingly fitting with the impurity suction roller 560 on one side, and then these metal impurities are sent to the impurity collection box 575 through the slope of the scraper 573. The impurity suction roller 560 with the metal impurity scraped off can continue to absorb the metal substances in the subsequent waste slag as it rotates. The non-metallic impurities are sent to the outside of the outer bottom box 510 through the conveyor belt 520 for separation and recycling.

[0068] The above embodiments have the following beneficial effects:

[0069] 1. First, the spiral structure of the spiral downpipe 220 is used to prevent the waste liquid from settling or flowing too slowly. Then, the condensate is filtered through the first material blocking screen 231, the second material blocking screen 241 and the third material blocking screen 251 respectively, and then the condensate is sent to the first working chamber 111, the second working chamber 112 and the third working chamber 113 in order from large to small in volume for simultaneous crushing. After finishing in the first working chamber 111, the condensate is sent to the second working chamber 112, and after finishing in the second working chamber 112, the condensate is sent to the third working chamber 113. Through the layered and step-by-step crushing method, the volume of the waste residue is balanced, and different treatment methods for condensates of different volumes at the same time are guaranteed. There is no need for manual operation or multiple filtering processes throughout the process. While improving the crushing effect and protecting the crushing components, the automation degree and working fluency of the device are also improved.

[0070] 2. Several groups of crossbars 320 are arranged at equal intervals from top to bottom and are distributed along a spiral path. This ensures that when each group of crossbars rotates, it can not only ensure that the condensate at each height can be cut, and the powder effect is more three-dimensional, but also make the centrifugal force in each direction of the fixed sleeve 310 more balanced when it rotates. At the same time, the characteristics of the spiral path distribution are utilized to form a vortex when the whole rotates, so that the condensate can be close to the center and precipitation is avoided.

[0071] 3. The powder net 330 is a grid structure composed of a plurality of groups of horizontal blades 332 arranged at equal intervals in the horizontal direction and a plurality of groups of vertical blades 333 arranged at equal intervals in the vertical direction, which allows the condensate to be cut into a plurality of equal-volume fragments at one time without multiple cuttings, thus shortening the powdering time and improving the working efficiency. At the same time, the mesh density of the powder net 330 in the first working chamber 111, the second working chamber 112 and the third working chamber 113 increases in turn, which meets the requirement of simultaneously crushing condensates of different volumes and improves the auxiliary function of the powder unit 300.

[0072] 4. After the condensate is crushed into waste slag, the suction roller 560, which generates electromagnetic suction force by powering on, contacts the evenly laid waste slag, sucks up the metal substances in the waste slag, and then, as the rotating rod 550 rotates, the metal waste slag adsorbed on the surface of the suction roller 560 is scraped off by using the characteristics of the scraper 573 slidingly fitting with the suction roller 560 on one side, and then these metal waste slags pass through the slope of the scraper 573 and enter the collection box 575. The suction roller 560 with the scraped metal waste slag can continue to absorb the metal substances in the subsequent waste slag as it rotates, so that the metal waste slag and non-metal waste slag can be distinguished, thereby improving the purity of classified recycling.

[0073] 5. After being transported by the conveyor belt 520, it arrives at the material laying component 540. At this time, two groups of symmetrically arranged crescent plates 541 are used to push the irregularly stacked waste slag to both sides. In addition, as the guide trough 542 is closer to the central axis of the inner bottom box 530, the height on one side is higher than that on the other side, so that the waste slag can be laid more evenly on the surface of the conveyor belt, avoiding the metal waste slag being pressed at the bottom and unable to be adsorbed, thereby improving the sorting effect of the metal waste slag.

[0074] Based on the above-mentioned green and environmentally friendly printing ink waste liquid recovery and treatment device, the embodiment of the present invention further proposes a treatment method of the treatment device. Exemplarily, the treatment method includes:

[0075] The waste liquid is injected into the spiral downpipe. When the waste liquid moves to the first downpipe, the larger condensate is intercepted by the first stop screen.

[0076] Then, as the waste liquid continues to move, the medium-sized and small-sized condensates are intercepted by the second and third blocking screens, respectively;

[0077] After the waste liquid passes through the spiral downpipe, it enters the water collection tank for subsequent purification treatment;

[0078] At the same time, each group of solenoid valves is opened, and the vibration motor is turned on to allow the condensate adsorbed on the first material blocking screen, the second material blocking screen and the third material blocking screen to enter the first working chamber, the second working chamber and the third working chamber respectively;

[0079] The first motor is started to drive the main rotating shaft and each group of powder material units to rotate simultaneously, so that each group of powder material units can simultaneously crush the three volumes of condensate;

[0080] When the condensate in the first working chamber is cut, its volume becomes smaller and then passes through the first screen into the second working chamber;

[0081] As the condensate in the second working chamber is further cut, its volume continues to shrink and passes through the second screen into the third working chamber;

[0082] After the cutting in the third working chamber is completed, the crushing work is completed to obtain the waste residue of the condensate;

[0083] The waste residue passes through the third screen and the feed port and falls onto the conveyor belt below, and then is transported by the conveyor belt to the paving part;

[0084] The irregular waste residue is evenly spread on the conveyor belt surface through the spreading parts;

[0085] The suction roller is electrified to generate electromagnetic suction force to suck up the metal waste;

[0086] As the rotating rod rotates, the scraper is used to scrape off the metal waste slag adsorbed on the surface of the suction roller and drop it into the collection box for recycling;

[0087] The non-metallic waste slag is further conveyed away from the outer box through the conveyor belt.

[0088] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A green and environmentally friendly printing ink waste liquid recovery and treatment device, comprising an inner box, characterized in that: The inner box body is provided with a first working chamber, a second working chamber and a third working chamber from top to bottom, and the first working chamber, the second working chamber and the third working chamber are provided with a first blocking net, a second blocking net and a third blocking net at the bottom respectively; the mesh gaps of the first blocking net, the second blocking net and the third blocking net are successively reduced in equal steps; a liquid passing unit is provided in a spiral shape around the inner box body; the liquid passing unit includes a vibration plate, a vibration motor is provided on the vibration plate, a spiral liquid pipe is installed on the vibration plate, and the spiral liquid pipe is a spiral structure; The spiral liquid discharge pipe is provided with a first discharge port, a second discharge port and a third discharge port in sequence from top to bottom, and the first discharge port, the second discharge port and the third discharge port are respectively inclinedly provided with a first material blocking screen, a second material blocking screen and a third material blocking screen on one side close to the bottom of the spiral liquid discharge pipe, and the output ends of the first discharge port, the second discharge port and the third discharge port are respectively connected to the cavity bodies of the first working chamber, the second working chamber and the third working chamber; the screen densities of the first material blocking screen, the second material blocking screen and the third material blocking screen decrease in sequence.

2. The green and environmentally friendly printing ink waste liquid recovery and treatment device according to claim 1 is characterized by: The recycling and processing device also includes an outer box, and the inner box is located on the central axis of the inner cavity of the outer box; A plurality of groups of damping shock absorbers are distributed in a ring array at the bottom of the vibration plate.

3. The green and environmentally friendly printing ink waste liquid recovery and treatment device according to claim 1 is characterized by: A first motor is provided at the center of the top of the inner box body, and a main rotating shaft is transmission-connected to the output end of the first motor. The bottom of the main rotating shaft vertically penetrates the first working chamber, the second working chamber and the third working chamber in sequence, and a group of powder units are sleeved in the first working chamber, the second working chamber and the third working chamber.

4. The green and environmentally friendly printing ink waste liquid recovery and treatment device according to claim 3 is characterized by: The powder unit comprises a fixed sleeve, which is sleeved on the main rotating shaft. A plurality of groups of cross bars are arranged on the outer wall of the fixed sleeve at equal intervals from top to bottom. The plurality of groups of cross bars are distributed in a spiral path. A plurality of groups of powder nets are distributed in a circular array on the cross bars.

5. The green and environmentally friendly printing ink waste liquid recovery and treatment device according to claim 4 is characterized by: The powder material net comprises a mounting frame, on which a plurality of groups of horizontal blades and a plurality of groups of vertical blades are arranged at equal intervals in the vertical and horizontal directions respectively, and the plurality of groups of horizontal blades and the plurality of groups of vertical blades are combined to form a grid structure.

6. The green and environmentally friendly printing ink waste liquid recovery and treatment device according to claim 2, characterized in that: A purification unit is provided at the bottom of the outer box body, and the purification unit includes an outer bottom box, a feed port is provided at the top of the outer bottom box, and the top of the feed port is connected with the third working chamber through a third blocking net; a conveyor belt is provided in the outer bottom box, the input end of the conveyor belt is located directly below the feed port, and the output end of the conveyor belt extends horizontally to the outside of the outer bottom box; an inner bottom box is provided directly above the conveyor belt, and a plurality of groups of rotating rods are arranged at equal intervals in the cavity of the inner bottom box along the conveying direction of the conveyor belt, and a trash absorption roller is sleeved on the rotating rod; the trash absorption roller is made of magnetic conductive material.

7. The green and environmentally friendly printing ink waste liquid recovery and treatment device according to claim 6, characterized in that: An electromagnet is arranged inside the rotating rod, one end of the rotating rod is transmission-connected to a second motor, the other end of the rotating rod is rotationally connected to a conductive slip ring, and the electromagnet is electrically connected to an electromagnetic adsorption control component through the conductive slip ring; the bottom of the suction roller is slidably fitted with the top of the conveyor belt; a collecting mechanism is arranged on one side of the suction roller.

8. The green and environmentally friendly printing ink waste liquid recovery and treatment device according to claim 7, characterized in that: A material laying component is installed at the bottom edge of the outer wall of the inner bottom box on the side close to the feed inlet, and the material laying component includes two groups of crescent plates symmetrically arranged with respect to the central axis of the inner bottom box, and the cross-section of the crescent plates is a fan-shaped structure when viewed from above; a material guiding trough is provided at the bottom of the crescent plates, and the material guiding trough is arranged at an angle, and the height of the side close to the central axis of the inner bottom box is higher than that of the other side.

9. The green and environmentally friendly printing ink waste liquid recovery and treatment device according to claim 7, characterized in that: The collecting mechanism comprises a scraper box, which is arranged in parallel with the rotating rod and has a debris inlet on the side close to the rotating rod. A debris removal outlet is provided at the bottom of the scraper box, and the bottom of the debris removal outlet is connected to a debris collecting box. A scraper is provided at the opening of the debris inlet, one side of the scraper is slidably fitted with the debris suction roller, and the other side tends to extend downward to the debris removal outlet.

10. The treatment method applied to the green and environmentally friendly printing ink waste liquid recovery and treatment device according to any one of claims 1 to 9, characterized in that: The processing method comprises: The waste liquid is injected into the spiral downpipe. When the waste liquid moves to the first downpipe, the larger condensate is intercepted by the first stop screen. Then, as the waste liquid continues to move, the medium-sized and small-sized condensates are intercepted by the second and third blocking screens, respectively; After the waste liquid passes through the spiral downpipe, it enters the water collection tank for subsequent purification treatment; At the same time, the condensate adsorbed on the first material blocking screen, the second material blocking screen and the third material blocking screen is transported to the first working chamber, the second working chamber and the third working chamber respectively; The three groups of condensates classified by volume are crushed and cut simultaneously in the first working chamber, the second working chamber and the third working chamber; When the condensate in the first working chamber is cut, its volume becomes smaller and then passes through the first screen into the second working chamber; As the condensate in the second working chamber is further cut, its volume continues to shrink and passes through the second screen into the third working chamber; After the cutting in the third working chamber is completed, the crushing work is completed to obtain the waste residue of the condensate; The metals in the waste slag are extracted to obtain metallic waste slag and non-metallic waste slag respectively.

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