Chromic acid purification device for chromium plating bath solution

Abstract

The utility model discloses a chromium plating bath solution chromic acid purification device which comprises a treatment bin for filtering a chromium plating bath solution, the bottom of the treatment bin is in threaded connection with an impurity removal cover, the top of the treatment bin is in bolt connection with a sealing cover, a filter plate is arranged on the inner wall of the treatment bin, a communicating hole is formed in the filter plate, and the communicating hole is communicated with the impurity removal cover. The utility model belongs to the technical field of chromic acid purification, and aims to solve the problems of corrosion to the surface of a device and pollution to other spaces due to the fact that residual chromium plating bath liquid in resin flows out in the taking process in the prior art. The technical effects are achieved as follows: through the elastic force of the spring, when the ion exchange mechanism is taken out of the purification device, the sealing ring is pulled to be in contact with the top of the second plugging piece, so that the bottom of a glass tube in the ion exchange mechanism is plugged, and residual chromium plating bath liquid in resin is prevented from flowing out when the ion exchange mechanism is taken out of the purification device.

Description

Technical Field

[0001] This utility model relates to the field of chromic acid purification technology, specifically to a chromic acid purification device for chromium plating bath solutions. Background Technology

[0002] A chromic acid purification device for chromium plating baths is used to treat and purify the bath solution used in the chromium plating process to remove impurities, maintain the chromic acid concentration, and ensure the quality of the bath solution. Common components of a chromic acid purification device for chromium plating baths include: a filtration system, which typically uses a precision filter to remove solid particulate impurities from the bath solution and prevent them from affecting the chromium plating quality; and an ion exchange resin column, which is used to adsorb and remove metal ion impurities such as iron and copper from the bath solution to maintain the purity of the chromic acid.

[0003] During the use of ion exchange resin columns, when the solution passes through the resin column, the exchangeable ions on the resin exchange with the target ions in the solution, thereby achieving ion separation, removal, or concentration. However, during long-term use, the continuous exchange reaction of ions inside will lead to a decrease in the number of exchangeable ions, resulting in a reduction in the purification effect of the device. Therefore, the resin column needs to be replaced regularly. However, when replacing the resin column in existing purification devices, the residual chromium plating solution inside the resin will flow out during the handling process, causing corrosion to the surface of the device and contamination of other spaces, which is somewhat inconvenient to use. Utility Model Content

[0004] Therefore, this utility model provides a chromic acid purification device for chromium plating bath to solve the above-mentioned problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] According to a first aspect of this utility model, a chromic acid purification device for chromium plating bath includes a treatment chamber for filtering the chromium plating bath. A discharge cover is threaded to the bottom of the treatment chamber, and a sealing cover is bolted to the top of the treatment chamber. A filter plate is provided on the inner wall of the treatment chamber, and a connecting hole is opened inside the filter plate. An ion exchange mechanism is inserted into the filter plate, and a sealing mechanism overlaps the surface of the filter plate. The ion exchange mechanism includes a glass tube containing ion exchange resin. A first sealing plate is fixedly connected to the upper end of the glass tube. A liquid outlet pipe is provided at the top of the first sealing plate, and a second sealing plate is fixedly connected to the bottom of the glass tube. A liquid inlet assembly is provided at the bottom of the second sealing plate.

[0007] Furthermore, the processing chamber includes a chamber body, and a fixing member is provided at the lower end of the inner cavity of the chamber body, and a top block is fixedly connected to the top of the fixing member.

[0008] Further, the liquid inlet assembly comprises a guide rod, the top of the guide rod is fixedly connected with the bottom of the second sealing plate, the surface of the guide rod is slidably connected with a top plate, the top of the top plate is fixedly connected with a spring, and the bottom of the top plate is overlapped with the top of a top block.

[0009] Further, the top of the spring is fixedly connected with the bottom of the second sealing plate, and the inside of the spring is movably sleeved with the surface of the guide rod.

[0010] Further, the middle of the top of the top plate is fixedly connected with a sealing element, and the bottom of the sealing element is fixedly connected with a sealing ring.

[0011] Further, the sealing mechanism comprises a sealing ring, the surface of the sealing ring is fixedly connected with the inner wall of the warehouse body, and the inside of the sealing ring is provided with a sliding groove.

[0012] Further, one side of the top of the sealing ring is fixedly connected with a liquid inlet pipe, the inside of the liquid inlet pipe is communicated with the inside of the warehouse body, the inside of the sliding groove is slidably connected with a sliding block, the middle length of the inside of the sliding groove is greater than the length of the two ends, and the middle length of the sliding block is greater than the length of the two ends.

[0013] Further, the surface of the sliding block is fixedly connected with a pushing rod, the surface of the pushing rod is fixedly connected with a sealing plate, and the surface of the pushing rod is overlapped with the inner wall of the communication hole.

[0014] The ion exchange mechanism can be taken out from the purification device, the sealing ring is in contact with the top of the second sealing element, the bottom of the glass tube in the ion exchange mechanism is sealed, the residual chromium plating tank solution in the resin is prevented from flowing out when the ion exchange mechanism is taken out, the multiple cavities in the warehouse body are communicated with each other in the process of removing impurities, and the removal of impurities is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The utility model provides a front view of chromium plating tank solution chromic acid purification device.

[0016] Figure 2 The utility model provides a section view of chromium plating tank solution chromic acid purification device.

[0017] Figure 3 The utility model provides an upper end exploded view of chromium plating tank solution chromic acid purification device.

[0018] Figure 4 The utility model provides a lower end perspective view of ion exchange mechanism of chromium plating tank solution chromic acid purification device.

[0019] Figure 5 The plugging mechanism of the chromium acid purification device for chromium plating tank solution provided by the utility model is shown in the perspective view.

[0020] Figure 6 The plugging mechanism of the chromium acid purification device for chromium plating tank solution provided by the utility model is shown in the perspective view.

[0021] Figure 7 The plugging mechanism of the chromium acid purification device for chromium plating tank solution provided by the utility model is shown in the perspective view.

[0022] In the figure: 1, treatment bin; 11, bin body; 12, fixing piece; 13, top block; 2, impurity discharge cover; 3, sealing cover; 4, filter plate; 5, communication hole; 6, ion exchange mechanism; 61, glass tube; 62, first plugging plate; 63, liquid outlet pipe; 64, second plugging plate; 65, liquid inlet assembly; 651, guide rod; 652, top plate; 653, spring; 654, sealing piece; 655, sealing ring; 7, plugging mechanism; 71, plugging ring; 72, sliding groove; 73, liquid inlet pipe; 74, sliding block; 75, push rod; 76, sealing plate. DETAILED DESCRIPTION

[0023] The embodiments of the utility model will be described in detail by specific examples, and those skilled in the art can easily understand other advantages and effects of the utility model from the disclosed content of the specification. Obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] Embodiment 1

[0025] As Figures 1 to 7 shown, the chromium acid purification device in the first aspect embodiment of the utility model, including the treatment bin 1 that filters the chromium plating tank solution, the bottom of the treatment bin 1 is screw thread connection and has the impurity discharge cover 2, the top of the treatment bin 1 is bolted and has the sealing cover 3, the inner wall of the treatment bin 1 is provided with the filter plate 4, the inside of the filter plate 4 is provided with the communication hole 5, the inside of the filter plate 4 is inserted and has the ion exchange mechanism 6, the surface of the filter plate 4 is overlapped and has the plugging mechanism 7, the ion exchange mechanism 6 includes the glass tube 61 that is filled with ion exchange resin, the upper end of the glass tube 61 is fixedly connected and has the first plugging plate 62, the top of the first plugging plate 62 is provided with the liquid outlet pipe 63, the bottom of the glass tube 61 is fixedly connected and has the second plugging plate 64, the bottom of the second plugging plate 64 is provided with the liquid inlet assembly 65;

[0026] In the above embodiment, it needs to be explained that the chromium plating solution is injected into the bin body 11 from the liquid inlet pipe 73, and the chromium plating solution is filtered by the multi-layer filter plate 4 to remove impurities in the chromium plating solution. After the chromium plating solution flows to the bottom of the inner cavity of the bin body 11, it enters the glass tube 61 through the through hole formed in the second blocking plate 64.

[0027] The technical effect achieved by the above embodiment is that the ions in the ion exchange resin and the ions in the chromium plating solution are exchanged with each other by contacting the chromium plating solution with the ion exchange resin contained in the glass tube 61, and the purification of the chromium plating solution is completed.

[0028] Embodiment 2

[0029] As shown in the Figures 1 to 7 chromium plating solution chromium acid purification device includes all the contents of embodiment 1, in addition, the treatment bin 1 includes a bin body 11, the lower end of the inner cavity of the bin body 11 is provided with a fixing piece 12, the top of the fixing piece 12 is fixedly connected with a top block 13, the liquid inlet assembly 65 includes a guide rod 651, the top of the guide rod 651 is fixedly connected with the bottom of the second blocking plate 64, the surface of the guide rod 651 is slidingly connected with a top plate 652, the top of the top plate 652 is fixedly connected with a spring 653, the bottom of the top plate 652 is overlapped with the top of the top block 13, the top of the spring 653 is fixedly connected with the bottom of the second blocking plate 64, the inside of the spring 653 is movably sleeved with the surface of the guide rod 651, the middle of the top of the top plate 652 is fixedly connected with a sealing piece 654, the bottom of the sealing piece 654 is fixedly connected with a sealing ring 655;

[0030] In the above embodiment, it needs to be explained that the chromium plating solution is injected into the bin body 11 from the liquid inlet pipe 73, and the chromium plating solution is filtered by the multi-layer filter plate 4 to remove impurities in the chromium plating solution. After the chromium plating solution flows to the bottom of the inner cavity of the bin body 11, it enters the glass tube 61 through the through hole formed in the second blocking plate 64.

[0031] The technical effect achieved by the above embodiment is that the ions in the ion exchange resin and the ions in the chromium plating solution are exchanged with each other by contacting the chromium plating solution with the ion exchange resin contained in the glass tube 61, and the purification of the chromium plating solution is completed.

[0032] Embodiment 3

[0033] As shown in the Figures 1 to 7As shown, the chromium plating tank solution chromium acid purification device includes all the contents of embodiment 2, in addition, the plugging mechanism 7 includes a plugging ring 71, the surface of the plugging ring 71 is fixedly connected with the inner wall of the warehouse body 11, a sliding groove 72 is arranged in the plugging ring 71, a liquid inlet pipe 73 is fixedly connected to one side of the top of the plugging ring 71, the inside of the liquid inlet pipe 73 communicates with the inside of the warehouse body 11, a sliding block 74 is slidably connected in the inside of the sliding groove 72, the middle part of the sliding groove 72 has a length greater than the length of both ends, the middle part of the sliding block 74 has a length greater than the length of both ends, a push rod 75 is fixedly connected to the surface of the sliding block 74, a sealing plate 76 is fixedly connected to the surface of the push rod 75, and the surface of the push rod 75 is lapped with the inner wall of the communication hole 5;

[0034] In the above embodiment, it should be noted that after the new ion exchange mechanism 6 is inserted into the inside of the filter plate 4, the sealing cover 3 is connected with the top of the warehouse body 11 by bolts, in the process of connection, the sealing cover 3 presses the glass tube 61 downward, under the action of the top block 13, the top plate 652 moves upward along the guide rod 651, the compression spring 653 is compressed, and the sealing ring 655 is separated from the second sealing plate 64, so that the chromium plating tank solution can normally enter the glass tube 61, when cleaning the impurities, after the impurity cover 2 and the sealing cover 3 are removed, the sliding block 74 is pushed to slide along the sliding groove 72, the push rod 75 drives the sealing plate 76 to move, and the multiple cavities in the warehouse body 11 separated by the filter plate 4 are connected with each other through the communication hole 5.

[0035] The above embodiment achieves the technical effect that the impurities can be discharged along the bottom of the inside of the warehouse body 11 under the action of their own gravity, so that the impurity removal is more convenient.

[0036] Working principle: in the process of use, the chromium plating bath from the inlet pipe 73 into the warehouse body 11, through the multi-layer filter plate 4 for chromium plating bath filtration, remove the impurities in the chromium plating bath, chromium plating bath flow to the bottom of the cavity of the warehouse body 11, along the second sealing plate 64 in the hole, into the glass tube 61, and glass tube 61 in the ion exchange resin contained in contact, through the ion exchange resin in the ion and ion exchange resin in the ion exchange, complete the purification of chromium plating bath, after the purification of chromium plating bath along the outlet pipe 63 discharge, can be injected into the chromium plating bath again use, when need to replace the ion exchange mechanism, after the sealing cover 3 is taken out, the glass tube 61 is extracted, in the process of extraction, through the elastic force of spring 653, the top plate 652 moves down, drive sealing element 654 makes sealing ring 655 and the top of the second sealing plate 64 close to the glass tube 61 from the bottom of the sealing, avoid in the process of taking out, the internal ion exchange resin in the chromium plating bath flow out, then the new ion exchange mechanism 6 is inserted into the filter plate 4 inside the sealing cover 3 and the warehouse body 11 top through bolt connection, in the process of connection, the sealing cover 3 will glass tube 61 down pressure, under the action of the top block 13, the top plate 652 along the guide rod 651 up at the same time, compression spring 653 and make sealing ring 655 and the second sealing plate 64 off, so that the chromium plating bath can be normal into the glass tube 61, in the process of cleaning, take off the cover 2 and the sealing cover 3 after the push block 74 along the sliding slot 72 sliding, make the drive lever 75 drive sealing plate 76 move, make the warehouse body 11 by filter plate 4 separated by multiple cavity through the communication hole 5 intercommunication, impurities under the action of its own gravity, along the warehouse body 11 cavity bottom discharge, make the impurity more convenient.

Claims

1. A chromium plating bath solution chromium acid purifying device, characterized by, The system includes a treatment chamber (1) for filtering chromium plating bath liquid. The bottom of the treatment chamber (1) is threaded with a discharge cover (2), and the top of the treatment chamber (1) is bolted with a sealing cover (3). The inner wall of the treatment chamber (1) is provided with a filter plate (4). The filter plate (4) has a connecting hole (5) inside. An ion exchange mechanism (6) is inserted into the filter plate (4). A sealing mechanism (7) overlaps the surface of the filter plate (4). The ion exchange mechanism (6) includes a glass tube (61) containing ion exchange resin. The upper end of the glass tube (61) is fixedly connected with a first sealing plate (62). The top of the first sealing plate (62) is provided with a liquid outlet pipe (63). The bottom of the glass tube (61) is fixedly connected with a second sealing plate (64). The bottom of the second sealing plate (64) is provided with a liquid inlet assembly (65).

2. The chromium plating bath chromium acid purifier according to claim 1, wherein The processing chamber (1) includes a chamber body (11), and a fixing member (12) is provided at the lower end of the inner cavity of the chamber body (11). A top block (13) is fixedly connected to the top of the fixing member (12).

3. The chromium plating bath solution chromium acid purifier apparatus of claim 1, wherein, The liquid inlet assembly (65) includes a guide rod (651), the top of which is fixedly connected to the bottom of the second sealing plate (64), a top plate (652) is slidably connected to the surface of the guide rod (651), a spring (653) is fixedly connected to the top of the top plate (652), and the bottom of the top plate (652) overlaps with the top of the top block (13).

4. The chromium plating bath chromium acid purifier of claim 3, wherein The top of the spring (653) is fixedly connected to the bottom of the second sealing plate (64), and the interior of the spring (653) is movably sleeved with the surface of the guide rod (651).

5. The chromium plating bath chromium acid purifier of claim 4, wherein, A sealing element (654) is fixedly connected to the middle of the top of the top plate (652), and a sealing ring (655) is fixedly connected to the bottom of the sealing element (654).

6. The chromium plating bath chromium acid purifier of claim 1, wherein, The sealing mechanism (7) includes a sealing ring (71), the surface of which is fixedly connected to the inner wall of the chamber (11), and a sliding groove (72) is provided inside the sealing ring (71).

7. The chromium plating bath chromium acid purifier of claim 6, wherein, A liquid inlet pipe (73) is fixedly connected to one side of the top of the sealing ring (71). The inside of the liquid inlet pipe (73) is connected to the inside of the chamber (11). A sliding block (74) is slidably connected inside the sliding groove (72). The length of the inner cavity in the middle of the sliding groove (72) is greater than the length of the inner cavities at both ends. The length of the middle part of the sliding block (74) is greater than the length at both ends.

8. The chromium plating bath chromium acid purifier of claim 7, wherein, A toggle rod (75) is fixedly connected to the surface of the sliding block (74), and a sealing plate (76) is fixedly connected to the surface of the toggle rod (75). The surface of the toggle rod (75) overlaps with the inner wall of the connecting hole (5).

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