Disclosure of Invention
The utility model aims at providing a water liquid cyclic utilization system for paper printing, this system can make the solution filtration cycle in the water tank use to reduce the water tank and trade the liquid number of times, reduce the emission of printing waste liquid, reduce the use amount of printing auxiliary liquid simultaneously.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a water liquid recycling system for paper printing comprises a water tank body, wherein a liquid separating partition plate is vertically arranged in the water tank body, a sewage cavity is formed on one side of the liquid separating partition plate, and a liquid purifying cavity is formed on the other side of the liquid separating partition plate; the filter device comprises a shell, a filter screen and a filter element, wherein a partition plate used for forming an upper cavity and a lower cavity is arranged in the shell, the upper cavity is provided with a liquid outlet hole communicated with the clean liquid cavity through a pipeline, the lower part of the lower cavity is provided with a liquid inlet hole communicated with the dirty liquid cavity through a pipeline and a circulating pump, the filter screen and the filter element are sequentially installed in the lower cavity from bottom to top and are both positioned above the liquid inlet hole of the lower cavity, the filter element is fixedly arranged on the lower surface of the partition plate, and a liquid through hole is formed in the partition plate corresponding to the liquid outlet of the filter element; and the liquid supplementing device is respectively communicated with the liquid outlet hole of the upper cavity and the liquid inlet hole of the liquid purifying cavity through pipelines.
Use the utility model provides a pair of during water liquid cyclic utilization system for paper printing, in the solution of foul solution intracavity passed through circulating pump and pumped to the cavity of resorption, flow in the fluid infusion device and carry out the fluid infusion after filter screen and filter core dual filtration, flow in the clean liquid intracavity after the fluid infusion is accomplished.
The water liquid cyclic utilization system for paper printing that above-mentioned scheme provided can carry out twice filtration to this internal printing water liquid of water tank, makes printing water liquid repeatedly usable and do not influence the printing quality, has reduced the use amount of printing water liquid, has reduced the emission of printing cost and waste liquid.
Preferably, the filter screen is a plurality of layers which are arranged at intervals from top to bottom, and the filter holes of the filter screen are gradually reduced from bottom to top.
Preferably, the bottom of the lower cavity is in an inverted cone structure, and a slag discharge valve is arranged at the center of the bottom of the lower cavity.
Preferably, the liquid supplementing device comprises a circulation box, the circulation box is provided with a liquid inlet hole communicated with the liquid outlet hole of the upper cavity and a liquid outlet hole communicated with the liquid purifying cavity, and the circulation box is also provided with at least one concentration tester and a liquid supplementing valve for injecting a liquid supplementing agent into the circulation box.
Preferably, the concentration tester is two, wherein one is an alcohol concentration tester, and the other is a fountain solution tester.
Preferably, the liquid replenishing device further comprises a back washing device, wherein the back washing device comprises a control valve A, a control valve B, a back washing valve, a washing pipe and a washing pump, the control valve A is installed on a pipeline between a liquid outlet hole of the circulating pump and a liquid inlet hole of the lower cavity, the control valve B is installed on a pipeline between a liquid outlet hole of the upper cavity and a liquid inlet hole of the liquid replenishing device, a water inlet hole is further formed in the upper cavity, and the water inlet hole is communicated with the liquid outlet hole of the washing pump through the washing pipe.
Preferably, the backwashing device further comprises a stirring device, the stirring device comprises a motor arranged on the top surface of the shell, a rotating shaft arranged in the filter element and at least one stirring rod arranged on the rotating shaft, and an output shaft of the motor penetrates into the lower cavity and is connected with the rotating shaft.
Preferably, the rotating shaft and the output shaft of the motor are connected through a flange or a coupling.
Preferably, the bottom of the sewage cavity is provided with a drain valve.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
As shown in fig. 1 and 2, a water liquid recycling system for paper printing includes a water tank body 10, a filtering device 20, and a liquid replenishing device 30, wherein a liquid separating partition plate 11 is vertically disposed in the water tank body 10, a dirty liquid cavity 12 is formed on one side of the liquid separating partition plate 11, and a clean liquid cavity 13 is formed on the other side of the liquid separating partition plate 11.
In this embodiment, the dirty liquid chamber 12 is located the left side of the liquid separating partition plate 11, the clean liquid chamber 13 is located the right side of the liquid separating partition plate 11, and the height of the liquid separating partition plate 11 is lower than that of the water tank body 10, so that the situation that the solution in any one of the dirty liquid chamber 12 or the clean liquid chamber 13 is increased accidentally and overflows the water tank body 10 can be avoided.
Filter device 20 includes casing 21, filter screen 22 and filter core 23, be provided with the division board 26 that is used for forming cavity 24 and cavity 25 down in the casing 21, it has the play liquid hole through pipeline and clean liquid chamber 13 intercommunication to go up cavity 24, the lower part of cavity 25 has the feed liquor hole through pipeline and circulating pump 27 and dirty liquid chamber 12 intercommunication down, and filter screen 22 and filter core 23 are just all located the top in cavity 25 feed liquor hole down by supreme installation in proper order down in cavity 25, filter core 23 sets firmly in division board 26's lower surface, division board 26 corresponds the play liquid department of filter core 23 and has seted up logical liquid hole 261.
In this embodiment, the housing is preferably a cylindrical structure, a baffle ring 29 is disposed on the inner side wall of the housing 21, the partition plate 26 is placed on the baffle ring 29 and fixed by bolts, in order to ensure the sealing performance of the upper cavity 24 and the lower cavity 25, a sealing ring (not shown in the figure) can be clamped between the partition plate 26 and the baffle ring 29, the filter element 23 is fixed on the partition plate 26 by a flange, and the aperture of the liquid through hole 261 of the partition plate 26 is smaller than the inner diameter of the filter element 23.
Specifically, in the present embodiment, the filter screen 22 is mainly used for filtering impurities such as paper wool, and the filter element 23 is mainly used for adsorbing and filtering impurities such as equipment lubricating oil and ink.
The liquid supplementing device 30 is respectively communicated with the liquid outlet hole of the upper cavity 24 and the liquid inlet hole of the liquid purifying cavity 13 through a pipeline, the liquid supplementing device 30 can supplement printing auxiliary liquid such as water, alcohol, fountain solution and the like, and the water tank body 10, the filtering device 20 and the liquid supplementing device 30 form a water circulation purification system.
Preferably, technical scheme, filter screen 22 is the multilayer and the filtration pore of multilayer filter screen 22 that the interval set up from top to bottom reduces gradually, in this embodiment, filter screen 22 is the three-layer, and filter screen 22 sets up the filtration pore with filtering different in size in layering helps improving the filter effect, is convenient for the back flush in later stage simultaneously.
Preferably, the bottom of the lower cavity 25 is an inverted cone structure, the center of the bottom of the lower cavity 25 is provided with the slag discharge valve 28, and the settled impurities and the impurities filtered by the filter screen 22 can be discharged by the slag discharge valve 28, so that the cleanliness of the lower cavity 25 is improved, and the service life of the filter device 20 is prolonged.
Preferably, the fluid infusion device 30 includes a flow box 31, the flow box 31 has a fluid inlet hole communicated with the fluid outlet hole of the fine filtration unit and a fluid outlet hole communicated with the fluid purification chamber 13, and the flow box 31 is further provided with at least one concentration tester 32 and a fluid infusion valve 33 for injecting a fluid infusion into the flow box 31.
In this embodiment, the concentration tester 32 is two, one is an alcohol concentration tester, and the other is a fountain solution tester, and the corresponding solution replenishing valve 33 is opened to replenish the solution according to the measurement result of the concentration tester 32.
Preferably, the technical scheme includes that the device further comprises a backwashing device, the backwashing device comprises a control valve A41, a control valve B42, a backwashing valve 43, a flushing pipe 44 and a flushing pump 45, the control valve A41 is installed on a pipeline between a liquid outlet hole of the circulating pump 27 and a liquid inlet hole of the lower cavity 25, the control valve B42 is installed on a pipeline between a liquid outlet hole of the upper cavity 24 and a liquid inlet hole of the liquid supplementing device 30, a water inlet hole is further formed in the upper cavity 24, and the water inlet hole is communicated with the liquid outlet hole of the flushing pump 45 through the flushing pipe 44. During backwashing, the circulating pump 27, the control valve A41 and the control valve B42 are closed, the backwashing valve 43 and the flushing pump 45 are opened, the filter screen 22 and the filter element 23 are flushed by flushing liquid externally connected with the flushing pump 45, and wastewater after flushing can be discharged through the slag discharge valve 28.
Preferably, the backwashing device further comprises a stirring device, the stirring device comprises a motor 46 arranged on the top surface of the shell 21, a rotating shaft 47 arranged in the filter element 23 and at least one stirring rod 48 arranged on the rotating shaft 47, an output shaft of the motor 46 penetrates into the lower cavity 25 and is connected with the rotating shaft 47, and the rotating shaft 47 is connected with an output shaft of the motor 46 through a flange or a coupling. The provision of the agitating means changes the flow direction of the washing liquid and accelerates the flow rate of the washing liquid, thereby washing the filter device 20 at a faster speed and with a better effect.
Preferably, the water liquid recycling system for paper printing provided by this embodiment is further provided with a controller, the control valve a41, the control valve B42, the backflushing valve 43, the slag discharge valve 28 and the liquid replenishment valve are all solenoid valves and are respectively electrically connected with the controller, and the controller is arranged so as to control the control valve a41, the control valve B42, the backflushing valve 43, the slag discharge valve 28 and the liquid replenishment valve.
The water liquid cyclic utilization system for paper printing that this embodiment provided normally filters the solution in the water tank body 10, close recoil valve 43, open control valve A41, control valve B42, open circulating pump 27, dirty liquid in dirty liquid chamber 12 pours into cavity 25 after circulating pump 27 pressurizes into and deposits, filters down, later flow into fluid infusion device 30 and mend the liquid, flow into in the clean liquid chamber 13 behind the fluid infusion, the gravity has passed through in the purification process and has deposited, filter screen 22, filter core 23 filters twice, the cleanness of the interior water liquid of clean liquid chamber 13 has been guaranteed. When the concentration tester 32 detects that the concentration of a certain solution in the flow box 31 is insufficient, the solution can be replenished through the corresponding solution replenishing valve, and after the filtering device 20 is used for a period of time, the filtering device 20 can be washed through the back washing device, so that the service life of the filtering device 20 is prolonged.
In this embodiment, it should be noted that the filter element 23 in the filter device 20 in this embodiment is a filter element commonly used in the industry, and will not be described in detail here.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.