CN218011441U - Anti-leakage filtering circulating device - Google Patents

Abstract

The utility model belongs to the technical field of PCB processing equipment, in particular to a leakage-proof filtering circulation device, which comprises a crystallizer, a filtering device and a heat exchange device; the crystallizer is communicated with the filtering device; the filtering device is communicated with the heat exchange device; the heat exchange device is also communicated with the crystallizer; the bottom of the heat exchange device is not lower than the bottom of the crystallizer and the bottom of the filtering device. When the solution flows from the filtering device to the heat exchange device, the bottom of the filtering device and the bottom of the heat exchange device are higher than the bottom of the filtering device, or the bottom of the filtering device is as high as the bottom of the heat exchange device, so that the solution flows nearly horizontally, the influence of gravity on the solution flow is reduced, the pressure of the solution on a pipeline is reduced, and the solution is not easy to break through the pipeline and leak.

Description

Anti-leakage filtering circulating device

Technical Field

The utility model belongs to the technical field of the PCB processing equipment, especially, relate to a prevent leaking filtration circulating device.

Background

The waste liquid containing copper makes the waste water produced in the production process of printed circuit boards, along with the modern development of our country, the demand for electronic products is increasing, most electronic components are supported on the printed circuit boards, therefore, a large amount of printed circuit boards are manufactured every day, meanwhile, a large amount of production waste liquid is produced every day, the copper-containing waste liquid in the micro-etching and electroplating processes of the printed circuit boards is one of the waste liquids, the direct discharge without treatment has great harm to the environment, and meanwhile, copper is a common metal in life, if the waste liquid can be treated and recycled, the recycling of copper can be realized. Therefore, the treatment of the PCB waste liquid and the recovery of the copper metal therein have become an indispensable link in PCB processing production.

The invention patent with the application number of CN211097844U discloses an anti-blocking filtering circulation device, which comprises a crystallizer, a filtering device and a heat exchange device, wherein the filtering device comprises a filter, a filter screen and a multipoint spray head, the crystallizer is connected with the filter through a first pipeline, the filter screen is arranged at the joint of the first pipeline and the filter, the multipoint spray head is arranged in the filter and faces the filter screen, and a product output pipe is connected between the crystallizer and the filter on the first pipeline; the heat exchange device is provided with a first inlet, a circulation port and a liquid outlet, the first inlet is connected with the filter through a second pipeline, the circulation port is connected with the crystallizer through a third pipeline, and the liquid outlet is connected with the multipoint sprayer through a fourth pipeline. And part of the PCB waste liquid is crystallized in the crystallizer, and the rest part of the PCB waste liquid flows back to the crystallizer through the heat exchanger, so that the solution can be recycled in the copper sulfate crystallization. However, when the solution flows from the filter to the heat exchange device, the solution breaks the pipeline and leaks due to the influence of gravity, which causes unnecessary waste, and the leaked solution easily pollutes the production site and affects the production.

Therefore, there is a real need for a leak-proof filter cycle device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent leaking filtration circulating device aims at solving the current technical problem who prevents blockking up the easy leakage solution of filtration circulating device.

In order to achieve the above object, an embodiment of the present invention provides a leakage-proof filtering circulation device, which includes a crystallizer, a filtering device and a heat exchange device; the crystallizer is communicated with the filtering device; the filtering device is communicated with the heat exchange device; the heat exchange device is also communicated with the crystallizer; characterized in that the bottom of the heat exchange device is not lower than the bottom of the crystallizer and the bottom of the filtering device.

Optionally, a first pipe and a second pipe are further included; the first pipeline is communicated with the crystallizer and the filtering device; the second pipeline is communicated with the filtering device and the heat exchange device; the second pipe connects the bottom of the filtering device and the bottom of the heat exchange device.

Optionally, the filtering device comprises a filter, a filter screen and a multi-point nozzle; the filter is communicated with the crystallizer through the first pipeline; the filter screen is arranged at the joint of the first pipeline and the filter; the multi-point spray head is arranged on the filter and faces the filter screen.

Optionally, the heat exchange device comprises a first liquid inlet, a circulation port, a third pipeline, a fourth pipeline and a liquid outlet; the first liquid inlet is communicated with the second pipeline; one end of the third pipeline is connected with the circulation port, and the other end of the third pipeline is connected with the crystallizer; one end of the fourth pipeline is connected with the liquid outlet, and the other end of the fourth pipeline is connected with the multi-point spray head.

Optionally, the heat exchange device is connected with a micro-etching main tank, the heat exchange device includes a cooler, a first pumpback, a second pumpback, a third pumpback and a circulating pump, a low-temperature tank located at the center of the cooler and a high-temperature tank disposed around the low-temperature tank are disposed in the cooler, the first liquid inlet and the liquid outlet are disposed on the low-temperature tank, a third liquid inlet is further disposed on the low-temperature tank, the circulating port is disposed on the high-temperature tank, and a second liquid inlet is further disposed on the high-temperature tank;

the microetching main tank is connected with the second liquid inlet through a fifth pipeline, the first pumping pump surge is arranged on the fifth pipeline, the second pumping pump surge is arranged on the third pipeline, the third pumping pump surge is arranged on the fourth pipeline, the fourth pipeline is connected with the third liquid inlet through a circulating pipeline, the circulating pump surge is arranged on the circulating pipeline, the fourth pipeline is arranged on the third pumping pump surge and a backflow pipeline is arranged between the multipoint spray heads, and the backflow pipeline is connected with the microetching main tank.

Optionally, a drop-preventing partition is arranged at a position below the filter screen at the joint of the filter and the first pipeline.

Optionally, the filter is divided into an upper filter part connected to the first pipe and a lower filter part connected to the second pipe, the upper filter part and the lower filter part are vertically connected to form the filter, a connection position between the lower end of the lower filter part and the second pipe is funnel-shaped, and a narrow-mouth end of the funnel-shaped lower filter part is close to the second pipe.

Optionally, one end of the first pipeline is connected with the bottom of the crystallizer; the other end is connected with the top of the filter; the first pipeline is obliquely arranged.

Optionally, a splash-proof outer cover for preventing liquid from splashing is arranged above the first pipeline, and the splash-proof outer cover is positioned above the filter screen.

Optionally, a flow regulating valve is arranged on the fourth pipeline between the heat exchange device and the multipoint spray head.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in preventing leaking filtration circulating device have one of following technological effect at least: when the solution flows from the filtering device to the heat exchange device, the bottom of the filtering device and the bottom of the heat exchange device are higher than the bottom of the filtering device, or the bottom of the filtering device is as high as the bottom of the heat exchange device, so that the solution flows nearly horizontally, the influence of gravity on the solution flow is reduced, the pressure of the solution on a pipeline is reduced, and the solution is not easy to break through the pipeline and leak.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a leak-proof filtering and circulating device according to an embodiment of the present invention;

FIG. 2 is a schematic view of a portion A of FIG. 1;

fig. 3 is a partially enlarged structural diagram of a portion B in fig. 1.

Wherein, in the figures, the various reference numbers:

the device comprises a crystallizer 100, a filtering device 200, a filter 210, a filter screen 220, a multi-point nozzle 230, an anti-falling partition 240, a heat exchange device 300, a first liquid inlet 310, a circulation port 320, a liquid outlet 330, a cooler 340, a low-temperature tank 341, a high-temperature tank 342, a second liquid inlet 3421, a third liquid inlet 343, a first back-pumping pump surge 350, a second back-pumping pump surge 360, a third back-pumping pump surge 370, a return pipeline 371, a circulation pump surge 380, a circulation pipeline 381, a first pipeline 400, a splash-proof outer cover 410, a flow regulating valve 420, a second pipeline 500, a micro-etching main tank 600, a third pipeline 700, a fourth pipeline 800 and a fifth pipeline 900.

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 by referring to the drawings are exemplary intended for explaining the embodiments of the present invention, and should not be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the 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 embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; 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 embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In some embodiments of the present invention, as shown in fig. 1 and 2, a leak-proof filtration cycle device is provided, which includes a crystallizer 100, a filtration device 200, and a heat exchange device 300. The crystallizer 100 is in communication with a filtration device 200. The filtering device 200 is in communication with the heat exchange device 300. The bottom of the heat exchange means 300 is not lower than the bottom of the crystallizer 100 and the bottom of the filtering means 200.

When the solution flows from the filtering device 200 to the heat exchanging device 300, the bottom of the filtering device 200 and the bottom of the heat exchanging device 300 are higher than the bottom of the filtering device 200, or are as high as the bottom of the filtering device 200, so that the solution flows nearly horizontally, the influence of gravity on the solution flow is reduced, the pressure of the solution on the pipeline is reduced, and the solution is not easy to break through the pipeline and leak.

The leakproof filtering circulation device is generally used for filtering a copper sulfate mixed solution to separate out copper sulfate pentahydrate crystals. The crystallizer 100 is an initial storage position of the solution in the apparatus, so that a mixed solution of copper sulfate pentahydrate crystals and the solution is in the crystallizer 100, the filtering device 200 is used for filtering the copper sulfate pentahydrate crystals in the crystallizer 100, and the heat exchange device 300 is used for heating the filtered copper sulfate mixed solution and then refluxing the solution to the crystallizer 100.

In other embodiments of the present invention, the leak-proof filtration cycle apparatus further comprises a first conduit 400 and a second conduit 500. The first pipe 400 communicates the mold 100 and the filtering device 200. The second pipe 500 communicates the filtering device 200 and the heat exchange device 300. The second pipe 500 connects the bottom of the filtering device 200 and the bottom of the heat exchange device 300, and the second pipe 500, the filtering device 200 and the heat exchange device 300 together form a U-shaped pipe, so that the solution in the filtering device 200 and the heat exchange device 300 is maintained to be equal, which facilitates the smooth flow of the solution in the filtering device 200 and the heat exchange device 300. The mixed solution in the crystallizer 100 flows into the filtering device 200 through the first pipe 400, and the mixed solution in the filtering device 200 flows into the heat exchange device 300 through the second pipe 500.

In other embodiments of the present invention, the first pipeline 400, the second pipeline 500 and the crystallizer 100 are coated with heat-insulating cotton (not shown), and the heat-insulating cotton can insulate the solution in the first pipeline 400, the second pipeline 500 and the crystallizer 100, thereby preventing the heat of the solution from being transferred greatly during the flowing process.

In other embodiments of the present invention, as shown in fig. 1-3, the filter apparatus 200 includes a filter 210, a screen 220, and a multi-point spray head 230. The strainer 210 is in communication with the crystallizer 100 through a first conduit 400. The strainer 220 is disposed at a junction of the first duct 400 and the filter 210. The multi-point spray head 230 is disposed on the filter 210 and faces the screen 220. The mixed solution in the crystallizer 100 is filtered by the filter screen 220 to separate the solution from the copper sulfate pentahydrate crystals, the filtered copper sulfate solution enters the filter 210 and flows to the heat exchange device 300, and the multi-point nozzle 230 is used for spraying the crystals generated on the filter screen 220 to dissolve the crystals on the filter screen 220, so that the problem that the filter screen 220 is blocked by the crystals and the solution cannot flow is avoided.

In other embodiments of the present invention, one end of the first pipe 400 is connected to the bottom of the mold 100. And the other end is connected to the top of the filter 210. The first duct 400 is disposed obliquely. When the mixed solution enters the filter 210 from the crystallizer 100 through the first pipe 400, the mixed solution flows from bottom to top, so that a certain flow rate of the mixed solution can be ensured, and the flow rate of the mixed solution cannot be too high.

In other embodiments of the present invention, a rubber pad (not shown) is disposed at the joint of the second pipe 500 and the filter 210, and the rubber pad is added to make the second pipe 500 and the filter 210 have better sealing performance, so that the solution is not easy to leak.

In other embodiments of the present invention, as shown in fig. 1-3, the heat exchanging device 300 includes a first inlet port 310, a circulation port 320, and an outlet port 330. The first inlet port 310 communicates with a second conduit 500. The circulation port 320 is connected to the mold 100. The outlet port 330 is connected to the multi-point spray head 230. The filtered copper sulfate mixed solution enters the heat exchange device 300 through the first liquid inlet 310, the first liquid inlet 310 is connected with the filter 210 through the second pipeline 500, the solution in the filter 210 flows into the heat exchange device 300 through the first liquid inlet 310 through the second pipeline 500, the circulation port 320 is connected with the crystallizer 100 through the third pipeline 700, a part of the solution flows back into the crystallizer 100 through the circulation port 320 through the third pipeline 700, the liquid outlet 330 is connected with the multipoint nozzle 230 through the fourth pipeline 800, and the other part of the solution flows to the multipoint nozzle 230 through the liquid outlet 330 through the fourth pipeline 800 for spraying crystals on the filter screen 220.

In other embodiments of the present invention, as shown in fig. 1 and fig. 2, a micro-etching main tank 600 is connected to the heat exchange device 300, the heat exchange device 300 includes a temperature reducer 340, a first pumping-back pump surge 350, a second pumping-back pump surge 360, a third pumping-back pump surge 370 and a circulating pump surge 380, the temperature reducer 340 is used for adjusting the temperature of the filtered copper sulfate mixed solution and the solution in the micro-etching main tank 600, the micro-etching main tank 600 is a user main tank for storing the solution to be processed by the user and a part of the filtered solution flowing back through the temperature reducer, the temperature reducer 340 is internally provided with a low-temperature tank 341 located at the center of the temperature reducer 340 and a high-temperature tank 342 disposed around the low-temperature tank 341, the low-temperature tank 341 is used for warming up the filtered copper sulfate mixed solution, the high-temperature tank 342 is used for cooling down the filtered copper sulfate mixed solution, the first liquid inlet 310 and the liquid outlet 330 are disposed on the low-temperature tank 341, a third liquid inlet 343 is further disposed on the low-temperature tank 341, the first liquid inlet 310 is used for guiding the copper sulfate mixed solution out from the low-temperature tank 341, and guiding the copper sulfate mixed solution into the low-temperature tank 330. The low temperature tank 341 is further provided with a third liquid inlet 343, the third liquid inlet 343 is used for introducing a copper sulfate mixed solution, the circulation port 320 is arranged on the high temperature tank 342, the circulation port 320 provides an outlet for the copper sulfate mixed solution in the high temperature tank 342, the high temperature tank 342 is further provided with a second liquid inlet 3421, the second liquid inlet 3421 is used for providing an inlet for the copper sulfate solution entering the high temperature tank 342, through the arrangement of the high temperature tank 342 and the low temperature tank 341 in the temperature reducer 340, the solution coming out of the crystallizer 100 and filtered by the filter 210 and the solution coming out of the main micro-etching tank 600 are subjected to heat exchange, so that the solution coming out of the crystallizer 100 is cooled without adding too much ice water, and the solution coming out of the main micro-etching tank 600 is also not subjected to too much heating treatment, so that the whole process is more energy-saving, and the solution coming into the crystallizer 100 is subjected to the heating and cooling treatment by the temperature reducer 340, so that the solution entering the crystallizer 100 does not cause large fluctuation of the temperature in the crystallizer 100, the crystallization effect is better, and the solution in the main micro-etching tank 600 is subjected to the temperature increase and cooling treatment, so that the micro-etching temperature fluctuation is more favorable for stabilizing the micro-etching solution in the micro-etching solution.

Further, the main micro-etching tank 600 is connected to the second liquid inlet 3421 via a fifth pipeline 900, the main micro-etching tank 600 introduces the copper sulfate mixed solution in the tank into the high temperature tank 342 via the second liquid inlet 3421 via the fifth pipeline 900, the first suck-back pump surge 350 is disposed on the fifth pipeline 900, the first suck-back pump surge 350 is used for pumping the copper sulfate mixed solution in the main micro-etching tank 600, the second suck-back pump surge 360 is disposed on the third pipeline 700, the second suck-back pump surge 360 is used for pumping the copper sulfate mixed solution in the high temperature tank 342, the third suck-back pump surge 370 is disposed on the fourth pipeline 800, the copper sulfate mixed solution in the low temperature tank 341 is introduced into the fourth pipeline 800 via the third suck-back pump surge 370, the fourth pipeline 800 is connected with the third liquid inlet 343 through the circulating pipeline 381, part of the copper sulfate mixed solution in the fourth pipeline 800 is led back to the low temperature tank 341 through the circulating pipeline 381, the circulating pump 380 is arranged on the circulating pipeline 381, the circulating pump 380 provides power for the drainage of the circulating pipeline 381, a return pipeline 371 is arranged between the third pumping pump 370 and the multipoint nozzle 230 on the fourth pipeline 800, the return pipeline 371 leads part of the copper sulfate mixed solution in the fourth pipeline 800 out, the return pipeline 371 is connected with the main micro-etching tank 600, and part of the copper sulfate led out from the return pipeline 371 is led into the main micro-etching tank 600 through the connection of the return pipeline 371 and the main micro-etching tank 600. The effect of the inside of the heat exchange device 300 is that the copper sulfate mixed solution can be repeatedly and circularly filtered without adding the solution again from the outside.

In other embodiments of the present invention, as shown in fig. 1 and 2, a splash-proof cover 410 for preventing liquid from splashing is disposed above the first pipe 400, and the splash-proof cover 410 is disposed above the filter screen 220. The anti-splash cover 410 is used to seal the port of the first tube 400 and prevent the copper sulfate mixed solution in the first tube 400 from overflowing from the port.

In another embodiment of the present invention, as shown in fig. 1 and fig. 2, the circulation port 320 is located below the sidewall of the high temperature groove 342, so that the copper sulfate mixed solution in the high temperature groove 342 can more conveniently flow out of the high temperature groove 342, and the liquid outlet 330 is located below the sidewall of the low temperature groove 341, so that the copper sulfate mixed solution in the low temperature groove 341 can more conveniently flow out of the low temperature groove 341.

In other embodiments of the present invention, as shown in fig. 1 to 3, the filter 210 is divided into an upper filtering portion connected to the first pipe 400 and a lower filtering portion connected to the second pipe 500, the upper filtering portion is vertically connected to the lower filtering portion to form the filter 210, the lower end of the lower filtering portion is funnel-shaped, and the narrow-end of the funnel-shaped lower filtering portion is close to the second pipe 500. The funnel-shaped design reduces the flow rate of the copper sulfate mixed solution, so that the low-temperature tank 341 can perform a temperature raising treatment on the filtered copper sulfate mixed solution more fully.

In other embodiments of the present invention, as shown in fig. 3, a falling-off preventing partition 240 is disposed at a position below the screen 220 where the filter 210 is connected to the first duct 400. The anti-falling partition 240 is disposed around the first duct 400 to support the filter screen 220, so that the filter screen 220 can be placed more stably and the filtering function thereof can be better exerted.

In other embodiments of the present invention, a flow regulating valve 420 is disposed on the fourth pipe 800 between the heat exchanging apparatus 300 and the multi-point spray head 230. The amount of the multi-point nozzle 230 is controlled by setting the flow control valve 420, so that the amount of the multi-point nozzle 230 can be controlled according to the two crystals on the filter 220.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. An anti-leakage filtering circulation device comprises a crystallizer, a filtering device and a heat exchange device; the crystallizer is communicated with the filtering device; the filtering device is communicated with the heat exchange device; the heat exchange device is also communicated with the crystallizer; characterized in that the bottom of the heat exchange device is not lower than the bottom of the crystallizer and the bottom of the filtering device.

2. The leak-resistant filter cycle apparatus of claim 1, further comprising a first conduit and a second conduit; the first pipeline is communicated with the crystallizer and the filtering device; the second pipeline is communicated with the filtering device and the heat exchange device; the second pipe connects the bottom of the filtering device and the bottom of the heat exchange device.

3. A leak resistant filter circulation apparatus as set forth in claim 2 wherein said filter apparatus comprises a filter, a screen, and a multipoint spray head; the filter is communicated with the crystallizer through the first pipeline; the filter screen is arranged at the joint of the first pipeline and the filter; the multi-point spray head is arranged on the filter and faces the filter screen.

4. A leak-resistant filtration cycle apparatus as set forth in claim 3 wherein said heat exchange apparatus includes a first liquid inlet, a circulation port, a third conduit, a fourth conduit, and a liquid outlet; the first liquid inlet is communicated with the second pipeline; one end of the third pipeline is connected with the circulation port, and the other end of the third pipeline is connected with the crystallizer; one end of the fourth pipeline is connected with the liquid outlet, and the other end of the fourth pipeline is connected with the multi-point spray head.

5. A leakage-proof filtering circulation device according to claim 4, wherein said heat exchanging device is connected with a micro-etching main tank, said heat exchanging device comprises a temperature reducer, a first pumping-back surge, a second pumping-back surge, a third pumping-back surge and a circulating pump surge, said temperature reducer is internally provided with a low temperature tank located at the center of said temperature reducer and a high temperature tank arranged around said low temperature tank, said first liquid inlet and said liquid outlet are arranged on said low temperature tank, said low temperature tank is further provided with a third liquid inlet, said circulating port is arranged on said high temperature tank, said high temperature tank is further provided with a second liquid inlet;

the micro-etching main tank is connected with the second liquid inlet through a fifth pipeline, the first pumping pump surge is arranged on the fifth pipeline, the second pumping pump surge is arranged on the third pipeline, the third pumping pump surge is arranged on the fourth pipeline, the fourth pipeline is connected with the third liquid inlet through a circulating pipeline, the circulating pump surge is arranged on the circulating pipeline, the fourth pipeline is arranged on the third pumping pump surge and a backflow pipeline is arranged between the multipoint spray heads, and the backflow pipeline is connected with the micro-etching main tank.

6. The leak-resistant filter circulation apparatus as set forth in claim 5; the filter with the handing-over department of first pipeline is located the position of filter screen below is provided with prevents falling and cuts off.

7. A leak-proof filter circulation apparatus according to claim 6, wherein said filter is divided into an upper filter portion connected to said first pipe and a lower filter portion connected to said second pipe, said upper filter portion and said lower filter portion being vertically connected to form said filter, and a connection position of a lower end of said lower filter portion and said second pipe is shaped like a funnel, and a narrow end of said funnel-shaped lower filter portion is close to said second pipe.

8. A leak-resistant filter circulation apparatus as set forth in claim 7 wherein one end of said first conduit is connected to the bottom of said crystallizer; the other end is connected with the top of the filter; the first pipeline is obliquely arranged.

9. A leak resistant filter cycle apparatus as set forth in claim 8 wherein a spill out shield is positioned over said first conduit to prevent liquid from spilling out, said spill out shield being positioned over said screen.

10. A leak resistant filtration cycle apparatus as set forth in claim 9 wherein a flow regulating valve is disposed on said fourth conduit between said heat exchange apparatus and said multipoint spray head.

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