Double-tower copper powder recovery system

Abstract

The utility model discloses a double-tower copper powder recovery system which comprises a sewage tank used for storing grinding plate return water, a filtering system connected with the sewage tank, a clear water tank connected with the filtering system and a circulating water utilization system connected with the clear water tank. The filtering system comprises a first pipeline connected with the sewage tank, a first filter and a second filter which are connected with the first pipeline and are distributed in parallel, and a compressed air conveying device which is connected with the first filter and the second filter and is used for curing and dehydrating the copper powder; each of the first filter and the second filter comprises a cylinder and a filter bag arranged in the cylinder, and wastewater treated by the first filter and the second filter is discharged to the clear water tank; the circulating water utilization system comprises a second pipeline connected with the clear water tank, and the second pipeline is connected with a grinding plate spraying pipeline. According to the double-tower copper powder recovery system, the filtering and dewatering efficiency can be improved, the copper powder cleaning process is convenient, and waste water generated by filtering can be recycled.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of circuit board production, specifically relates to a double -tower copper powder recovery system. BACKGROUND

[0002] Circuit board is the provider of electrical connection of electronic components, and the circuit board is divided into single -sided board, double -sided board and multilayer circuit board according to layer, and the circuit board substrate is polished in the circuit board production procedure Process the surface of the substrate is polished flat to meet the demand of production technology, and the polished substrate is washed with clean water in the polishing process. Since the circuit board substrate is mostly copper plate, a large amount of copper powder is often contained in the waste water after washing, and if the copper-containing waste water is not further treated, not only will it cause a large amount of waste of water resources, but also will cause serious environmental pollution;

[0003] The existing device has the following shortcomings:

[0004] 1. The existing copper powder filter for circuit board production cannot continuously guide the waste water into the filter for discharge after filtration, and the filtration rate is low.

[0005] 2. When the waste water is filtered, it is mostly directly discharged, causing waste of water resources, and the waste water cannot be recycled, increasing the production cost.

[0006] 3. When the accumulated copper powder on the filter screen is too much, the copper powder needs to be cleaned, which is very troublesome and takes a lot of time.

[0007] Therefore, it is necessary to provide a new copper powder filtration structure to solve the above technical problems. UTILITY MODEL CONTENTS

[0008] The technical problem to be solved by the utility model is to provide a double -tower copper powder recovery system, which can improve the filtration and dehydration efficiency, the copper powder cleaning process is convenient, and the waste water generated by filtration can be recycled.

[0009] The technical scheme of the utility model is as follows:

[0010] A double -tower copper powder recovery system, comprising a sewage tank for storing grinding plate backwater, a filtration system connected with the sewage tank, a clean water tank connected with the filtration system, and a circulating water utilization system connected with the clean water tank;

[0011] The filtration system comprises a first pipeline connected with the sewage tank, a first filter and a second filter connected with the first pipeline and arranged side by side, and a compressed air conveying device connected with the first filter and the second filter for copper powder solidification and dehydration, the first filter and the second filter comprise a cylinder body, and a filter bag arranged in the cylinder body, and the waste water treated by the first filter and the second filter is discharged to the clean water tank.

[0012] The circulating water utilization system comprises a second pipeline connected with the clean water tank, and the second pipeline is connected with the grinding plate spray pipeline.

[0013] Further, the filter system further comprises a filter pump, a first switch valve, a first liquid inlet pipe and a second liquid inlet pipe connected with the first pipeline and used for connecting the first filter and the second filter respectively, and a second switch valve and a third switch valve arranged in the first liquid inlet pipe and the second liquid inlet pipe respectively.

[0014] Further, the filter system further comprises a first pressure gauge and a second pressure gauge used for detecting pressure values of the first liquid inlet pipe and the second liquid inlet pipe respectively.

[0015] Further, the compressed air conveying device comprises a first air inlet pipe and a second air inlet pipe connected with the first liquid inlet pipe and the second liquid inlet pipe respectively, and a first air inlet valve and a second air inlet valve arranged in the first air inlet pipe and the second air inlet pipe respectively, wherein the first air inlet pipe and the second air inlet pipe are connected with a compressed air source respectively.

[0016] Further, the circulating water utilization system further comprises a spray pump and a fourth switch valve arranged in the second pipeline in sequence.

[0017] Further, the double-tower copper powder recovery system further comprises a filter cleaning system, wherein the filter cleaning system comprises a third pipeline connected with the clean water tank, and a fifth switch valve arranged in the third pipeline, and the end of the third pipeline is connected with the first pipeline, and the connection point of the two is located at the liquid outlet end of the first switch valve.

[0018] Further, the third pipeline is connected with the second pipeline, and the connection point of the two is located at the liquid inlet end of the fourth switch valve.

[0019] Compared with the prior art, the double-tower copper powder recovery system has the beneficial effects that:

[0020] Firstly, the double-tower copper powder recovery system adopts two filters to simultaneously process the grinding plate backwater, so that the water treatment capacity is large and the efficiency is high; the filter bag filtering mode is adopted in the first filter and the second filter, so that the separation of filter residue and water can be quickly completed under the action of gravity, and the efficiency of filter dewatering is improved; the copper powder in the filter is solidified and dewatered by compressed air, so that the solidified copper powder in the filter bag can be directly taken out when the copper powder is cleaned, and the copper powder cleaning is convenient and fast.

[0021] The double-tower copper powder recovery system provided by the utility model can monitor the liquid inlet pressure of the first filter and the second filter in real time, and when the liquid inlet pressure is too high, the cleaning system is started to clean the filters, thereby improving the filtering and dewatering efficiency.

[0022] The double-tower copper powder recovery system provided by the utility model can monitor the liquid inlet pressure of the first filter and the second filter in real time, and when the liquid inlet pressure is too high, the cleaning system is started to clean the filters, thereby improving the filtering and dewatering efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0024] Figure 1 It is the structure schematic diagram of the double-tower copper powder recovery system of the utility model. DETAILED DESCRIPTION

[0025] In order to make the technical personnel in the art better understand the technical solutions in the embodiments of the utility model, and make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the following will further describe the specific embodiments of the utility model with reference to the drawings.

[0026] It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation on the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0027] Please refer to Figure 1 It is the structure schematic diagram of the double-tower copper powder recovery system of the utility model. The double-tower copper powder recovery system of the utility model comprises a sewage tank 1, a filtering system 2 connected with the sewage tank 1, a clean water tank 3 connected with the filtering system 2 and a recycling water utilization system 4 connected with the clean water tank 3. Among them, the sewage tank 1 is used for storing the backwater of the grinding plate, the filtering system 2 is used for filtering the backwater of the grinding plate, so that the copper powder in the backwater of the grinding plate is separated from the water, the copper powder is intercepted into the filter of the filtering system, the treated wastewater is discharged into the clean water tank 3, and the treated wastewater is used for the grinding plate spray water through the recycling water utilization system 4, so that the wastewater can be recycled.

[0028] The utility model discloses, filter system 2 including with sewage tank 1 connects first pipeline 201, with first pipeline 201 and parallel distribution's first filter 202 and second filter 203, with first filter 202 and second filter 203 connection's compressed air conveying device 204. The first pipeline 201 is sent to first filter 202 and second filter 203 to the backwater of grinding plate, and the particulate in backwater is intercepted, and water is arranged to clean water tank 3. When needing to clean the copper powder in filter, start compressed air conveying device 204, and the compressed air is sent to filter, and the copper powder in filter is made to dehydrate solidification fast through the air pressure of compressed air, and forms copper powder solidification body, and at this time, the top cover of filter can be taken out copper powder to clean the copper powder.

[0029] The utility model discloses, set up two filters, and two filters are in parallel, in the operation process, handle grinding plate backwater simultaneously, can improve grinding plate backwater processing capacity, promote processing efficiency.

[0030] In order to make filter system in the operation process can realize the independent operation of filtration and copper powder cleaning, realizes through setting up corresponding switch valve in pipeline. Specifically, first pipeline 201 is provided with filter pump 205, first switch valve 206 in proper order, and filter pump 205 is used to pump to first filter and second filter after backwater is filtered initially, and provides backwater delivery pressure, and the end of first pipeline 201 is connected with first liquid inlet pipe 207 and second liquid inlet pipe 208, wherein first liquid inlet pipe 207 is connected with first filter 202, and second liquid inlet pipe 208 is connected with second filter 203, and second switch valve 209 and third switch valve 210 are arranged on first liquid inlet pipe 207 and second liquid inlet pipe 208 respectively, and second switch valve 209 and third switch valve 210 are used to control the communication and closing of first pipeline and corresponding filter respectively.

[0031] Among them, first filter 202 includes cylinder body 2021, filter bag 2022 arranged in cylinder body 2021 and end cover 2023 arranged on cylinder body 2022, first liquid inlet pipe 207 is connected with end cover 2023 and communicates with filter bag 2022, so that grinding plate backwater is directly injected into filter bag 2022, the bottom of cylinder body is provided with liquid outlet, and the liquid outlet is connected with clean water tank communication pipe, and the waste water after solid-liquid separation is directly discharged into clean water tank 3. The number of filter bag 2022 can be designed according to production needs. The structure of second filter 203 is same with first filter, and is not repeated here.

[0032] The compressed air conveying device 204 comprises a first air inlet pipe 2041 and a second air inlet pipe 2042 connected with the first liquid inlet pipe 207 and the second liquid inlet pipe 208 respectively, and first and second air inlet valves 2043 and 2044 arranged on the first and second air inlet pipes 2041 and 2042 respectively, wherein the first and second air inlet pipes 2041 and 2042 are connected with a compressed air source, and the connection point of the first air inlet pipe 2041 with the first liquid inlet pipe 207 is located at the liquid inlet end of the second switch valve 209, and the connection point of the second air inlet pipe 2042 with the second liquid inlet pipe 208 is located at the liquid inlet end of the third switch valve 210.

[0033] In order to facilitate the operator to determine the timing of copper powder cleaning in the production process, preferably, a first pressure gauge 211 and a second pressure gauge 212 are arranged on the first liquid inlet pipe 207 and the second liquid inlet pipe 208 respectively, when the pressure value of the first pressure gauge 211 is greater than 1.5 Kg / cm 2 , the first air inlet valve 2043 can be opened to convey compressed air to the filter bag in the first filter, under the action of the compressed air, the solid-liquid separation is quickly realized, and the solidification of copper powder and other substances is realized, so that it is convenient to take out. The second pressure gauge 212 has the same function as the first pressure gauge 211, and will not be described here.

[0034] The circulating water utilization system 4 comprises a second pipeline 401 connected with the clean water tank 3, a spraying pump 402 and a fourth switch valve 403 arranged on the second pipeline 401 in sequence, and the second pipeline 401 is connected with the grinding plate spraying pipeline to pump the waste water in the clean water tank 3 to the grinding plate process for grinding plate spraying.

[0035] In order to improve the filtering efficiency of the filtering system in the double-tower copper powder recovery system, preferably, a filter cleaning system 5 is further arranged. The filter cleaning system 5 comprises a third pipeline 501 connected with the clean water tank and a fifth switch valve 502 arranged on the third pipeline, wherein the tail end of the third pipeline 501 is connected with the first pipeline 201, and the connection points of the two are located at the liquid outlet end of the first switch valve 206. The water in the clean water tank is conveyed to the first filter 202 and the third filter 203 through the first pipeline 201 to clean the corresponding filter bag. In actual application, when the pressure value of the first pressure gauge or the second pressure gauge is greater than or equal to 0.5 Kg / cm 2 , it indicates that the filter bag is blocked, at this time, an appropriate amount of filter aid can be added in the clean water tank for circulating cleaning until the water in the clean water tank changes from milky white to clear, which indicates that the filter bag is clean.

[0036] In this embodiment, the third pipeline 501 is connected with the second pipeline 401, and the connection points of the two are located at the liquid inlet end of the fourth switch valve 403, and the filter cleaning operation or the water recycling operation is controlled through the fourth switch valve 403 and the fifth switch valve 502.

[0037] The working principle of the double-tower copper powder recovery system is as follows:

[0038] 1, the grinding plate backwater is stored in the sewage tank, the first switch valve, the second switch valve and the third switch valve are opened, and the filter pump is started, the sewage in the sewage tank is transported to the first filter and the second filter;

[0039] 2, the first filter and the second filter filter the sewage, the solid particles are intercepted in the filter bag, and the waste water is discharged to the clean water tank; at the same time, the spray pump and the fourth switch valve are opened, and the recovered waste water is used as spray water for the grinding plate process;

[0040] When the pressure value of the first pressure gauge / second pressure gauge is greater than or equal to 1.5Kg / cm 2 , it indicates that the filtering efficiency of the filter is reduced, and the copper powder in the filter bag needs to be cleaned in time;

[0041] 3, stop the filter pump, close the first switch valve, the fifth switch valve, open the first air inlet valve and the second air inlet valve, and transport compressed air into the first filter and the second filter, under the pressure of the compressed air, the solid particles in the filter bag are quickly dehydrated and solidified, the end cover of the first filter and the second filter is opened, the copper powder in the filter bag is directly taken out, and the filter bag is cleaned, then the end cover is closed, and the grinding plate backwater filtering treatment is continued;

[0042] 4, if the pressure value of the first pressure gauge and the second pressure gauge is still greater than or equal to 0.5Kg / cm 2 after cleaning the filter bag, the filter cleaning system works. At this time, a certain amount of filter aid is added in the clean water tank for cleaning: first, the filter aid is dissolved in the clean water tank, then the first switch valve, the fourth switch valve are closed, and the fifth switch valve is opened, the clean water containing the filter aid is pumped into the filter to clean the filter bag, and the water in the clean water tank changes from milky white to clear;

[0043] 5, close the fifth switch valve, open the first switch valve and the fourth switch valve, and the filtering system and the circulating water utilization system work normally.

[0044] Compared with the prior art, the double-tower copper powder recovery system has the beneficial effects that:

[0045] The double-tower copper powder recovery system provided by the utility model has two filters for simultaneously treating the backwater of the grinding plate, has large water treatment capacity and high efficiency; the filter bag filtering mode is adopted in the first filter and the second filter, and the separation of filter residue and water can be quickly completed under the action of gravity, so that the efficiency of filtering and dewatering is improved; the copper powder in the filter is solidified and dewatered by compressed air, the solidified copper powder in the filter bag can be directly taken out when the copper powder is cleaned, and the copper powder is convenient and fast to clean.

[0046] The double-tower copper powder recovery system provided by the utility model can monitor the liquid inlet pressure of the first filter and the second filter in real time, the filter is cleaned by starting the cleaning system when the liquid inlet pressure is too high, and the filtering and dewatering efficiency is improved.

[0047] The double-tower copper powder recovery system provided by the utility model uses the filtered wastewater as the spraying water of the grinding plate, so that the wastewater is recycled, the water consumption is saved, and the water burden is reduced.

[0048] The above detailed description is made to the embodiments of the utility model with reference to the drawings, but the utility model is not limited to the described embodiments. Various changes, modifications, replacements and variations made to the embodiments without departing from the principles and spirits of the utility model still fall within the protection scope of the utility model.

Claims

1. A dual tower copper powder recovery system, characterized by, The system comprises a sewage tank for storing backwater of the grinding plate, a filtering system connected with the sewage tank, a clean water tank connected with the filtering system, and a circulating water utilization system connected with the clean water tank. The filtering system comprises a first pipeline connected with the sewage tank, a first filter and a second filter connected with the first pipeline and distributed side by side, and a compressed air conveying device connected with the first filter and the second filter for copper powder solidification and dehydration, the first filter and the second filter comprising a cylinder and a filter bag arranged in the cylinder, and the treated wastewater of the first filter and the second filter being discharged into the clean water tank. The circulating water utilization system comprises a second pipeline connected with the clean water tank, and the second pipeline is connected with a grinding plate spraying pipeline.

2. The dual tower copper powder recovery system of claim 1, wherein, The filtering system further comprises a filtering pump, a first switch valve, a first liquid inlet pipe and a second liquid inlet pipe connected with the first pipeline and used for connecting the first filter and the second filter respectively, and a second switch valve and a third switch valve arranged in the first liquid inlet pipe and the second liquid inlet pipe respectively.

3. The dual tower copper powder recovery system of claim 2, wherein, The filtering system further comprises a first pressure gauge and a second pressure gauge used for detecting pressure values of the first liquid inlet pipe and the second liquid inlet pipe respectively.

4. The dual tower copper powder recovery system of claim 2, wherein, The compressed air conveying device comprises a first air inlet pipe and a second air inlet pipe connected with the first liquid inlet pipe and the second liquid inlet pipe respectively, and a first air inlet valve and a second air inlet valve arranged in the first air inlet pipe and the second air inlet pipe respectively, and the first air inlet pipe and the second air inlet pipe are connected with a compressed air source respectively.

5. The dual tower copper powder recovery system of claim 2, wherein, The circulating water utilization system further comprises a spraying pump and a fourth switch valve arranged in the second pipeline in sequence.

6. The dual tower copper powder recovery system of claim 5, wherein, The double-tower copper powder recovery system further comprises a filter cleaning system, the filter cleaning system comprising a third pipeline connected with the clean water tank, and a fifth switch valve arranged in the third pipeline, and the end of the third pipeline is connected with the first pipeline, and the connection point of the two is located at the liquid outlet end of the first switch valve.

7. The dual tower copper powder recovery system of claim 6, wherein, The third pipeline is connected with the second pipeline, and the connection point of the two is located at the liquid inlet end of the fourth switch valve.

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