KR20220156162A - A filtering device for recycle of waste copper sulfate solution - Google Patents

Abstract

The present invention relates to a filtering device for recycling waste copper sulfate solution for filtering and recycling waste copper sulfate solution, which is an industrial by-product. To this end, the filtering device comprises: a storage tank with an open upper part and coupled to an inlet pipe for introducing the waste copper sulfate solution into the lower part; a tank head coupled to the upper part of the storage tank, having an auxiliary tank for temporarily storing the filtered copper sulfate solution formed therein, and having a withdrawal pipe connected to the auxiliary tank connected to the upper part; a support pipe coupled to extend across the center of the tank head to the lower portion of the storage tank; a plurality of bag filters radially installed around the support pipe in a vertical upright state; and a plurality of perforated pipes in which nozzle holes which introduce a copper sulfate solution filtered through each bag filter into the auxiliary tank as the upper part is connected to the auxiliary tank and the lower part is inserted vertically inside each bag-filter are formed. The upper end of each bag filter is supported by a support means to prevent sagging downward. When the internal pressure of the storage tank increases due to clogging caused by foreign substances adhering to the bag filter, the perforated pipe is sprayed through a nozzle hole to wash the bag filter with water. At least two or more inspection ports are formed in the storage tank, so that the internal situation (bag filter clogging) can be visually identified.

Description

Waste copper sulfate solution reuse filtering device {A FILTERING DEVICE FOR RECYCLE OF WASTE COPPER SULFATE SOLUTION}

The present invention relates to a waste copper sulfate solution reusable filtering apparatus for filtering and reusing foreign substances contained in waste copper sulfate solution, which is an industrial by-product, through a bag filter, and more particularly, to a bag filter (Bag-filter) for filtering waste copper sulfate solution. When the filter) is clogged with foreign substances, foreign substances are firstly removed through the cleaning solution supplied in the reverse direction, and foreign substances adhered to the surface are secondarily removed through vibration, enabling continuous filtering. It relates to a solution reuse filtering device.

Copper sulfate is widely used as a raw material for electrolytic solutions, pigments, insecticides, preservatives, mordants, materials for batteries, medicines, and electroplating solutions for electronic parts such as semiconductor devices.

For example, as copper sulfate that can be used as an electrolytic solution, pigment, insecticide, preservative, mordant, material for batteries, pharmaceuticals, raw materials for electroplating solutions of electronic parts such as semiconductor devices, etc., Japanese Patent Publication No. 3987069 (Patent Document 1) has a purity of 99.99 wt. High-purity copper sulfate having, in %, a transition metal such as Cr or Ni of 3 wtppm or less is described.

Further, Japanese Patent Publication No. 3943583 (Patent Document 2) describes high-purity copper sulfate having a purity of 99.999 wt% or more.

In addition, Korean Patent Publication No. 2015-0110728 (Patent Document 3) describes a method of producing an electrodeposited copper foil using a copper sulfate solution.

However, this copper sulfate solution is classified as industrial waste to be disposed of after use, and a lot of cost is required to treat it.

In particular, in order to reuse the waste copper sulfate solution, it is necessary to filter foreign substances contained in the waste copper sulfate solution, but a device for filtering the waste copper sulfate solution has not yet been developed.

Japanese Patent Publication No. 3987069 Japanese Patent Publication No. 3943583

The present invention has been made in view of the above problems, and a first object of the present invention is a waste copper sulfate solution reusable filtering device for filtering and reusing foreign substances contained in waste copper sulfate solution, which is an industrial by-product, through a bag filter. is providing

A second object of the present invention is to first remove the foreign matter through the washing liquid supplied in the reverse direction when the bag-filter for filtering the waste copper sulfate solution is clogged with foreign matter, and also to vibrate the surface It is to provide a waste copper sulfate solution reusable filtering device capable of continuously filtering by removing foreign substances adhered to the secondary.

According to features for achieving the above object, the first invention relates to a waste copper sulfate solution reusable filtering device for filtering and reusing waste copper sulfate solution, which is an industrial by-product. A storage tank to which an inlet pipe for introducing the waste copper sulfate solution is coupled; and an auxiliary tank coupled to the upper part of the storage tank and temporarily storing the filtered copper sulfate solution is formed at the upper part and communicates with the auxiliary tank. A tank head to which a withdrawal pipe is coupled; and a support pipe coupled to extend across the center of the tank head to the lower portion of the storage tank; and a plurality of radially installed around the support pipe in an upright state in the vertical direction. A bag filter; and an upper end coupled in communication with the auxiliary tank, and a lower part vertically inserted into each bag-filter, so that the copper sulfate solution filtered through each bag-filter flows into the auxiliary tank. It includes a plurality of perforated pipes having nozzle holes formed therein, wherein the upper end of each bag filter is supported by a supporting means to prevent sagging downward, and the perforated pipe is clogged by foreign substances adhering to the bag filter. When the internal pressure of the storage tank increases, the washing liquid supplied back to the withdrawal pipe is sprayed through the nozzle hole to wash the bag filter with water, and at least two inspection ports are formed in the storage tank to check the internal situation ( It is characterized in that it is configured to visually identify the bag filter clogging phenomenon).

According to the waste copper sulfate solution reuse filtering device of the present invention, since foreign substances contained in the waste copper sulfate solution, which is an industrial by-product, can be filtered through a bag filter and reused, environmental pollution can be prevented and the production cost of the copper sulfate solution can be lowered. there is

In addition, if the Bag-Filter that filters the waste copper sulfate solution is clogged by foreign substances, the foreign substances are firstly removed through the cleaning solution supplied in the reverse direction, and the foreign substances adhered to the surface are removed through vibration in the second It has the effect of enabling continuous filtering by removing it.

1 is a cross-sectional view of a waste copper sulfate solution reuse filtering device according to the present invention;
Figure 2 is a cross-sectional view of Figure 1;
Figure 3 is a cross-sectional view of the storage tank separated from Figure 1;
4 is an operation diagram of the waste copper sulfate solution reuse filtering device according to the present invention;
5 is an operation diagram showing the cleaning of the bag filter of the waste copper sulfate solution reuse filtering device according to the present invention.

Objects, other objects, features and advantages of the present invention below will be easily understood through the following preferred embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms.

Rather, the embodiments introduced herein are provided so that the disclosed content will be thorough and complete and the spirit of the present invention will be sufficiently conveyed to those skilled in the art.

Embodiments described and illustrated herein also include complementary embodiments thereof.

In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. The terms 'comprise' and/or 'comprising' used in the specification do not exclude the presence or addition of one or more other elements.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing the specific embodiments below, various specific details have been prepared to more specifically describe the invention and aid understanding. However, readers who have knowledge in this field to the extent that they can understand the present invention can recognize that it can be used without these various specific details. In some cases, it is mentioned in advance that parts that are commonly known in describing the invention and are not greatly related to the invention are not described in order to prevent confusion in describing the present invention.

Hereinafter, the waste copper sulfate solution reuse filtering device according to the present invention will be described in detail together with the accompanying drawings.

1 is a cross-sectional view of a waste copper sulfate solution reuse filtering device according to the present invention, FIG. 2 is a cross-sectional view of FIG. 1, FIG. 3 is a cross-sectional view of the storage tank in FIG. FIG. 5 is an operation diagram showing the cleaning of the bag filter of the waste copper sulfate solution reuse filtering device according to the present invention.

As shown in FIGS. 1 to 5, the present invention filters and reuses foreign substances contained in the waste copper sulfate solution, which is an industrial by-product, through a bag filter, but the bag-filter is clogged with foreign substances. It relates to a waste copper sulfate solution reusable filtering device 100 that enables continuous filtering by first removing foreign substances through a cleaning solution supplied in the reverse direction and secondarily removing foreign substances adhered to the surface through vibration. .

The waste copper sulfate solution reuse filtering device 100 of the present invention is largely composed of five parts, which consist of a storage tank 10, a tank head 20, a bag filter 40, and a perforated pipe 24. do.

The upper portion of the storage tank 10 is open to allow the tank head 20 to be coupled thereto, and an inlet pipe 11 for introducing waste copper sulfate solution is coupled to the lower portion.

At this time, at least two or more inspection ports 14 are formed in the storage tank 10 so that an internal situation (bag filter clogging) can be visually identified.

In addition, the tank head 20 is coupled to the upper portion of the storage tank 10 to seal the storage tank 10, and when the tank head 20 is separated, the bag filter 40 is separated together. It is made to facilitate the replacement of the bag filter 40.

An auxiliary tank 22 for temporarily storing the filtered copper sulfate solution is further formed inside the tank head 20 and has a drawing pipe 21 communicating with the auxiliary tank 22 at the top.

In addition, the tank head 20 includes a support pipe 30 coupled across the inner center, and a structure capable of connecting and supporting the bag filter 40 through the support pipe 30 is provided.

The bag-filter 40 functions to filter foreign substances (ceramic particles, diatom particles, activated carbon particles) included in the waste copper sulfate solution.

The bag filter 40 has a rectangular bag shape and is configured such that the upper and lower portions are sealed.

At this time, the bag filter 40 has a structure in which a plurality of bag filters 40 are radially installed around the support tube 30 in a vertically upright state so as to increase the filtering area.

In addition, the upper end of the perforated pipe 24 is connected in communication with the auxiliary tank 22, and the lower part is vertically inserted into the bag-filter 40, so that the bag filter 40 While communicating with, it also serves as an auxiliary function for maintaining the upright shape of the bag filter 40.

The perforated pipe 24 is formed with a plurality of nozzle holes 241 along the longitudinal direction, and the copper sulfate solution filtered through the bag filter 40 is transferred to the auxiliary tank 22 through the nozzle holes 241. function to infiltrate.

In addition, as shown in FIG. 2, the perforated pipe 24 is inserted in a 1:1 correspondence to the bag filter 40 radially disposed inside the storage tank 10, and for this purpose, the auxiliary tank 22 has a concentric circle. It is a structure that is coupled in communication in a state of being arranged in a phase.

In addition, the auxiliary tank 22 is further coupled with an auxiliary pipe 25 inserted into the bag filter 40 in addition to the perforated pipe 24 to improve the supporting capacity of the upper part of the bag filter 40, while maintaining the filtered copper sulfate solution. It is configured to increase the inflow.

Therefore, by making the inflow amount of the filtered copper sulfate solution equal to the inflow amount of the waste copper sulfate solution into the inlet pipe 11 having a large diameter, the regeneration capacity of the copper sulfate solution finally discharged through the outlet pipe 21 can be increased.

Meanwhile, as shown in FIG. 3, the support pipe 30 is a bag filter ( 40) to support the upper and lower parts.

To this end, the support tube 30 has a structure in which a first support disk 31 and a second support disk 32 are coupled to each other to radially connect the first and second support bars 311 and 321 .

At this time, the plurality of first support bars 311 connected to the first support disk 31 are linked at their free ends to vertical bars 26 vertically fixed inside the tank head 20, The upper part of the bag filter 40 has a structure supported by being interposed between the first support bars 311 .

And the plurality of second support bars 321 connected to the second support disk 32 are connected to the lower part of the bag filter 40 .

Therefore, the upper part of the bag filter 40 is interposed between the perforated pipe 24 inserted therein and the first support bar 311 to maintain an upright state, and the lower part maintains an upright state, and the second support bar 321 It is a structure that is connected to and supported by.

Through this, the upper and lower portions of the bag filter 40 are provided with a structure that can be stably supported while preventing deformation of the shape such as folding caused by the waste copper sulfate solution filled with high pressure through the inlet pipe 11. .

The upper end of each bag filter 40 is supported by a support means to prevent downward sagging. The support means may consist of a hook 37 connected to the first support bar 311 through a wire. .

On the other hand, when the internal pressure of the storage tank 10 increases due to a clogging phenomenon caused by foreign substances adhering to the bag filter 40, the perforated pipe 24 supplies the washing liquid to the outlet pipe 21 through the nozzle hole 241. It functions to wash the bag filter 40 by spraying through.

Through this, the bag filter 40 can be washed in a state inserted into the storage tank 10 without separating and washing the bag filter 40 to the outside, so that a continuous filtering operation is possible.

Meanwhile, the inlet pipe 11 has a plurality of discharge holes 111 further formed at the insertion portion, and a roof cover 112 is further coupled to the upper end to prevent the inflow of the falling washing liquid.

In addition, a drain pipe 12 for discharging the washing liquid is further connected to the lower end of the storage tank 10, along with the inlet pipe 11, so that the washing liquid can be separately collected.

In addition, a connection pipe 13 is connected between the inlet pipe 11 and the drain pipe 12, and when the supply amount of the waste copper sulfate solution supplied to the inlet pipe 11 is large, some of the waste copper sulfate solution is passed through the connection pipe ( 13), and can be configured to be simultaneously supplied to the drain pipe 12.

Meanwhile, as shown in FIG. 3, a vibrating means is disposed at the lower portion of the support pipe 30 with an expansion joint 33 in the form of a corrugated pipe that expands vertically.

Here, the vibration means is for further increasing the cleaning effect of the bag filter 40, and after drying the bag filter 40 in a state of washing with water, secondary removal of residual foreign substances adhering to the bag filter 40 function.

The vibrating means consists of an air vibrator 34 inserted and fixed inside the lower end of the support pipe 30, and the air line 341 of the air vibrator 34 passes through an expansion joint to the support pipe 30. It is a structure that communicates with the air injection pipe 35 formed at the top.

At this time, air is discharged from the air vibrator 34 through the exhaust line 342, and the discharged air is configured to be discharged through the air outlet 36 formed at the upper end of the support pipe 30.

In addition, the second support disk 32 is connected to the lower end of the air vibrator 34, and the vibration of the air vibrator 34 is transmitted to the tank head 20 and the storage tank 10 by the expansion joint 33. A structure capable of secondary removal of residual foreign matter adhering to the bag filter 40 by being transferred only to the bag filter 40 via the second support bar 321 connected to the second support disk 32 while preventing is provided

In addition, a gauge pipe 23 to which a pressure gauge 231 capable of measuring the pressure in the storage tank 10 and the auxiliary tank 22 is connected may be formed in the tank head 20 .

Hereinafter, the operation of the filtering device of the copper sulfate solution filtering device according to the present invention will be briefly described.

[Filtering operation]

First, as shown in FIG. 4, the waste copper sulfate solution is pumped through the inlet pipe 11 to fill the entire inside of the storage tank 10 with the waste copper sulfate solution.

And, the waste copper sulfate solution filled in the storage tank 10 goes through the bag filter 40 by the pressure of the continuously supplied waste copper sulfate solution, and the nozzle hole 241 of the perforated pipe 24 and the secondary in a state in which foreign substances are removed. The copper sulfate solution filtered through the pipe 25 flows into the auxiliary tank 22.

The copper sulfate solution flowing into the auxiliary tank 22 is temporarily stored in an external collection container (not shown) through the withdrawal pipe 21 by the pressure of the continuously flowing copper sulfate solution.

At this time, the filtered copper sulfate solution is recycled at least twice to completely remove foreign substances contained in the waste copper sulfate solution so that it can be reused.

[Bag filter cleaning]

As shown in FIG. 1 , when the pressures of the auxiliary tank 22 and the storage tank 10 increase, it can be checked through the pressure gauge 231 .

When the pressure in the auxiliary tank 22 and the storage tank 10 increases through the pressure gauge 231, the bag filter 40 and/or the nozzle hole 241 of the perforated pipe 24 is blocked by foreign substances, resulting in a filtering effect. is lowered

Then, as shown in FIG. 5, the copper sulfate solution filled in the storage tank 10 is discharged through the drain pipe 12, and then the cleaning solution is supplied back to the inlet pipe 11 at a constant pressure.

Then, the washing liquid is sprayed into the nozzle hole 241 of the perforated pipe 24 and the auxiliary pipe 25, and the sprayed washing liquid backwashes the bag filter 40 to remove foreign substances adhering to the bag filter 40. will remove

Finally, the washing liquid is discharged to the outside through the drain pipe 12.

[Secondary washing of bag filter]

Thereafter, after drying so that no residual washing remains inside the storage tank 10, the remaining foreign substances adhering to the bag filter 40 are secondarily removed through the air vibrator 34 to achieve a cleaning effect of the bag filter 40 can be further increased.

The vibration of the air vibrator 34 passes through the second support bar 321 connected to the second support disk 32 while preventing transmission to the tank head 20 and the storage tank 10 by the expansion joint 33. By being transferred only to the bag filter 40 , residual foreign substances adhering to the bag filter 40 may be secondarily removed.

Since the embodiments described in this specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention, various equivalents that can replace them at the time of this application It should be understood that there may be variations and examples.

10: storage tank 11: inlet pipe 111: discharge hole
112: roof cover 12: drain pipe
13: connector 14: inspection port
20: tank head 21: withdrawal pipe 22: auxiliary tank
23: gauge pipe 231: pressure gauge
24: perforated pipe 241: nozzle hole
25: auxiliary pipe 26: vertical bar
30: support pipe 31: first support disk 311: first support bar
32: second support disk 321: second support bar
33: expansion joint 34: air vibrator
341: air line 342: exhaust line
35: air injection pipe 36: air outlet
37: hook bar
40: bag filter
100: waste copper sulfate solution reuse filtering device

Claims (1)

In the waste copper sulfate solution reusable filtering device for filtering and reusing the waste copper sulfate solution, which is an industrial by-product,
a storage tank 10 having an open top and coupled to an inlet pipe 11 for introducing waste copper sulfate solution to the bottom;
It is coupled to the upper part of the storage tank 10, and an auxiliary tank 22 for temporarily storing the filtered copper sulfate solution is formed therein, and a withdrawal pipe 21 communicating with the auxiliary tank 22 is coupled to the upper part. tank head 20;
a support pipe 30 coupled to extend across the center of the tank head 20 to a lower portion of the storage tank;
A plurality of bag filters 40 radially installed around the support pipe 30 in a vertically upright state;
The upper end is connected in communication with the auxiliary tank 22, and the lower end is vertically inserted into each of the bag-filters 40 to supply the copper sulfate solution filtered through each of the bag-filters 40. A plurality of perforated pipes 24 having nozzle holes 241 introduced into the auxiliary tank 22;
The upper end of each bag filter 40 is supported by a support means to prevent sagging downward,
The perforated pipe 24 is clogged by foreign substances adhering to the bag filter 40, and when the internal pressure of the storage tank 10 increases, the washing liquid supplied back to the withdrawal pipe 21 is passed through the nozzle hole 241. It is configured to wash the bag filter 40 with water by spraying through,
At least two or more inspection ports 14 are formed in the storage tank 10 to visually identify the internal situation (bag filter clogging).

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