Intelligent chromium liquid separation and concentration device

Abstract

The utility model discloses an intelligent chromium liquid separation and concentration device which comprises a tank body, a first chamber, a second chamber, a third chamber and a fourth chamber are arranged in the tank body, the upper ends of the first chamber and the second chamber are communicated through a first air pipe, the upper ends of the third chamber and the fourth chamber are communicated through a second air pipe, and the first air pipe is communicated with the second air pipe. The side face of the first cavity communicates with the side face of the third cavity, and the second cavity communicates with the fourth cavity through a surface air cooler. The first cavity and the third cavity are each internally provided with an atomization spraying assembly used for atomizing chromium liquid, and the third cavity is further internally provided with filter cotton and a water collector. The concentration device is provided with the first spraying pipe, the second spraying pipe, the filter cotton, the water collector and the fan, an electroplating aqueous solution is separated into concentrated liquid and condensate water, the generated condensate water can be recycled, the production line operation and wastewater treatment cost is reduced, and the recycling efficiency of electroplating chemicals can also be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chromium liquid concentration, in particular to an intelligent chromium liquid separation and concentration device. Background Art

[0002] Chrome plating is a process of electroplating a thin layer of chromium on metal. There are two main functions of chrome plating. First, it is used as a protective layer. The chemical properties of chromium are stable and it does not react with most organic acids, sulfides, and alkalis. Therefore, chrome plating can prevent corrosion, improve wear resistance, and serve as a protective layer. Second, it is used for decoration. The chrome layer has a very high surface finish and is often used as a decorative part, such as automotive instruments, interior decorations, ornaments, and other parts with appearance requirements.

[0003] In the chromium electroplating process, the chromium content in the plating solution will continue to decrease as the electroplating proceeds. When it is reduced to a certain amount, new plating solution needs to be added to increase the chromium content. However, in this process, it is usually necessary to reduce the amount of liquid in the plating tank first. The reduced liquid also contains chromium and cannot be effectively recycled and reused. This makes it impossible to fully utilize the chromium liquid, which not only produces a large amount of chromium plating wastewater, but also leads to a waste of chromium liquid. Therefore, we proposed an intelligent chromium liquid separation and concentration device to solve the above problems. Utility Model Content

[0004] The utility model aims to provide an intelligent chromium liquid separation and concentration device to solve the problem of insufficient utilization of chromium liquid in the current chromium electroplating process proposed by the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an intelligent chromium liquid separation and concentration device, comprising a tank body, wherein a first chamber, a second chamber, a third chamber and a fourth chamber are arranged inside the tank body, the upper ends of the first chamber and the second chamber are connected through a first air duct, the upper ends of the third chamber and the fourth chamber are connected through a second air duct, the first chamber and the third chamber are connected at the side, and the second chamber and the fourth chamber are connected through a surface cooler; an atomizing spray assembly for atomizing chromium liquid is arranged inside the first chamber and the third chamber, a filter cotton and a water collector are also arranged inside the third chamber, the filter cotton is located above the water collector, and the filter cotton and the water collector are located above the atomizing spray assembly; a flushing spray assembly for flushing the filter cotton and the water collector is also arranged inside the third chamber, the flushing spray assembly is located above the filter cotton and the water collector, and an extrusion assembly for dehydration is arranged on the filter cotton.

[0006] Preferably, a baffle is provided in the third chamber, the lower side of the baffle does not contact the bottom surface of the third chamber, and the baffle is located at a side position below the atomizing spray assembly in the third chamber.

[0007] Preferably, a fan is installed between the second air duct and the fourth chamber, and the fan is fixed to the tank body through a fan bracket.

[0008] Preferably, the atomizing spray assembly comprises a second spray pipe, on which a spray head is mounted, and the spray head is located in the middle of the first chamber and the third chamber.

[0009] Preferably, the flushing spray assembly includes a first spray pipe, which is arranged in a cross shape above the filter cotton, and spray heads are also installed on the first spray pipe at equal intervals.

[0010] Preferably, the extrusion assembly includes a servo electric cylinder, an external pressure mesh plate, an inner lining mesh plate and a weighing sensor, the servo electric cylinder is fixedly mounted on the third chamber, the weighing sensor is fixed in the third chamber, and the external pressure mesh plate is mounted on the weighing sensor, the external pressure mesh plate is mounted on filter cotton, and the inner lining mesh plate is arranged between the filter cottons.

[0011] Preferably, the outer pressure mesh plate, inner lining mesh plate and filter cotton are superimposed on each other and arranged on a weighing sensor, the outer pressure mesh plate and inner lining mesh plate are made of stainless steel, and the weighing sensor is electrically connected to the control switch of the servo electric cylinder through a PLC.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The concentration device is provided with a first spray pipe, a second spray pipe, a filter cotton, a water collector and a fan, which separates the electroplating aqueous solution into a concentrated solution and condensed water. The generated condensed water can be recycled again, thereby reducing the production line operation and wastewater treatment costs, and also improving the recovery efficiency of electroplating chemicals;

[0014] (2) The concentrator has a simple mechanical structure and performs a physical evaporation process through the cooperation of a fan and a spray pipe. It does not require the addition of any chemicals, does not discharge pollutants, and has low operating and maintenance costs.

[0015] (3) The concentrator is provided with air ducts to connect the various chambers, so that the interior of the device is a fully enclosed structure. During operation, the air circulates only inside, no exhaust gas is generated, and the device can be used indoors or outdoors;

[0016] (4) The surface cooler inside the concentrator helps to reduce the temperature of the electroplating aqueous solution, and is particularly suitable for working conditions that require cooling, such as chrome plating and zinc plating. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the top view structure of the utility model;

[0020] Figure 4 This is a schematic cross-sectional structural diagram of the third chamber and the fourth chamber of the utility model;

[0021] Figure 5 This is a schematic cross-sectional structural diagram of the first chamber and the third chamber of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the filter cotton of the utility model;

[0023] Figure 7 It is a schematic diagram of the principle of the utility model.

[0024] In the figure: 1. trough body; 2. first chamber; 3. second chamber; 4. first air duct; 5. third chamber; 6. second air duct; 7. fan; 8. first spray pipe; 9. second spray pipe; 10. fan bracket; 11. surface cooler; 12. filter cotton; 13. water collector; 14. baffle; 15. servo cylinder; 16. external pressure mesh plate; 17. fourth chamber; 18. inner lining mesh plate; 19. weighing sensor. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-7 The utility model provides a technical solution: an intelligent chromium liquid separation and concentration device, comprising a tank body 1, wherein a first chamber 2, a second chamber 3, a third chamber 5 and a fourth chamber 17 are arranged inside the tank body 1, the upper ends of the first chamber 2 and the second chamber 3 are connected through a first air duct 4, the upper ends of the third chamber 5 and the fourth chamber 17 are connected through a second air duct 6, the first chamber 2 and the third chamber 5 are connected at the side, and the second chamber 3 and the fourth chamber 17 are connected through a surface cooler 11.

[0027] Furthermore, a baffle 14 is provided in the third chamber 5, which can guide the airflow to flow from the first chamber 2 to the third chamber 5. The bottom of the baffle 14 does not contact the bottom surface of the third chamber 5, which neither affects the discharge of the liquid at the bottom of the first chamber 2 and the third chamber 5 through the concentrate reflux pipe, nor does it affect the airflow passing through the bottom of the baffle 14 and blowing upward from the bottom of the third chamber 5, thereby driving the water mist sprayed from the second spray pipe 9 in the third chamber 5 to flow upward. The baffle 14 is located on the side below the atomizing spray assembly in the third chamber 5, which will not block the normal spraying of water mist from the second spray pipe 9 in the third chamber 5, and can also play a role in guiding and diverting the airflow.

[0028] Furthermore, a fan 7 is installed between the second air duct 6 and the fourth chamber 17 , and the fan 7 is fixed to the tank body 1 through a fan bracket 10 to ensure that the device can have normal airflow.

[0029] The first chamber 2 and the third chamber 5 are both provided with an atomizing spray assembly for atomizing the chromium liquid. The third chamber 5 is also provided with a filter cotton 12 and a water collector 13. The filter cotton 12 is located above the water collector 13. The filter cotton 12 and the water collector 13 are located above the atomizing spray assembly.

[0030] Furthermore, the atomizing spray assembly includes a second spray pipe 9, on which a spray head is installed. The spray head is located in the middle position inside the first chamber 2 and the third chamber 5, and can partially atomize the chromium liquid to meet the subsequent physical evaporation concentration process.

[0031] The third chamber 5 is also provided with a flushing spray assembly for flushing the filter cotton 12 and the water collector 13. The flushing spray assembly is located above the filter cotton 12 and the water collector 13. The filter cotton 12 is provided with a squeezing assembly for dehydration.

[0032] Furthermore, the flushing spray assembly includes a first spray pipe 8, which is arranged in a cross shape above the filter cotton 12, and spray heads are also installed on the first spray pipe 8 at equal intervals, which can more fully and comprehensively complete the flushing work of the filter cotton 12.

[0033] Furthermore, the extrusion assembly includes a servo electric cylinder 15, an external pressure mesh plate 16, an inner lining mesh plate 18 and a weighing sensor 19. The servo electric cylinder 15 is fixedly mounted on the third chamber 5. The weighing sensor 19 is fixed in the third chamber 5, and the external pressure mesh plate 16 is mounted on the weighing sensor 19. The external pressure mesh plate 16 is mounted on the filter cotton 12, and the inner lining mesh plate 18 is arranged between the filter cotton 12, so as to realize the extrusion and dehydration of the filter cotton 12.

[0034] Furthermore, the outer pressure mesh plate 16, the inner lining mesh plate 18 and the filter cotton 12 are superimposed on each other and arranged on the weighing sensor 19. The outer pressure mesh plate 16 and the inner lining mesh plate 18 are made of stainless steel to ensure the normal extrusion of the filter cotton 12. The weighing sensor 19 is electrically connected to the control switch of the servo electric cylinder 15 through the PLC, and can automatically complete the extrusion of the filter cotton 12, thereby ensuring the long-term water absorption of the filter cotton 12.

[0035] Specifically, when the concentrating device is used, the fan 7 is first started, and the air flow inside the device flows in the order of the fourth chamber 17, the second chamber 3, the first air duct 4, the first chamber 2, the third chamber 5, and the second air duct 6. Then, the chromium liquid in the electroplating liquid circulation tank is extracted by a water pump and sprayed out through the nozzle on the second spray pipe 9. The chromium liquid is partially atomized in the first chamber 2 and the third chamber 5, and the unatomized chromium liquid directly flows back to the electroplating liquid circulation tank;

[0036] Due to the flow of air inside the device, the atomized chromium liquid will be blown to the water collector 13 and the filter cotton 12. Under the action of the water collector 13 and the filter cotton 12, the large molecular water will be intercepted, and the small molecular water vapor will pass through. The small molecular water vapor is blown to the surface cooler 11 with the air flow. The cooling water in the surface cooler 11 is continuously circulated. When the water vapor passes through the surface cooler 11, it is condensed into water and returned to the recovery water washing tank through the condensed water return pipe for use, while the air continues to circulate under the action of the fan 7;

[0037] After the concentrator has been working for a long time, the filter cotton 12 will absorb a lot of water, and its own weight will also increase accordingly. The weighing sensor 19 can detect the weight change of the filter cotton 12 after absorbing water. When the filter cotton 12 absorbs too much water, it will also affect the subsequent water absorption effect. Therefore, when the weight of the filter cotton 12 absorbs water reaches a certain level, the weighing sensor 19 transmits a signal to the PLC controller, thereby controlling the servo electric cylinder 15 to extend, and the servo electric cylinder 15 will squeeze the filter cotton 12 downward. In addition, an external pressure mesh plate 16 and an inner lining mesh plate 18 are provided inside and outside the filter cotton 12, which can ensure that the filter cotton 12 is stably and comprehensively squeezed, so that the water contained in the filter cotton 12 can be squeezed out, thereby facilitating the subsequent normal water absorption work;

[0038] After working for a long time, water can be sprayed to the filter cotton 12 through the first spray pipe 8, and the filter cotton 12 and the water collector 13 can be cleaned in conjunction with the above-mentioned squeezing process of the filter cotton 12. The cleaning water flows back to the production line electroplating liquid circulation tank. The above-mentioned cleaning process can be completed by a timer switch to perform timed cleaning, so that the filter cotton 12 is kept in good condition;

[0039] The above is the working process of the concentration device, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent chromium liquid separation and concentration device, comprising a tank body (1), wherein the tank body (1) is provided with a first chamber (2), a second chamber (3), a third chamber (5) and a fourth chamber (17), characterized in that: The upper ends of the first chamber (2) and the second chamber (3) are connected via a first air duct (4), the upper ends of the third chamber (5) and the fourth chamber (17) are connected via a second air duct (6), the first chamber (2) and the third chamber (5) are connected at the sides, and the second chamber (3) and the fourth chamber (17) are connected via a surface cooler (11); The first chamber (2) and the third chamber (5) are both provided with an atomizing spray assembly for atomizing the chromium liquid, and the third chamber (5) is also provided with a filter cotton (12) and a water collector (13), wherein the filter cotton (12) is located above the water collector (13), and the filter cotton (12) and the water collector (13) are located above the atomizing spray assembly; The third chamber (5) is also provided with a flushing spray assembly for flushing the filter cotton (12) and the water collector (13), and the flushing spray assembly is located above the filter cotton (12) and the water collector (13).

2. The intelligent chromium liquid separation and concentration device according to claim 1 is characterized in that: A baffle (14) is arranged in the third chamber (5), the lower side of the baffle (14) does not contact the bottom surface of the third chamber (5), and the baffle (14) is located at a side position below the atomizing spray assembly in the third chamber (5).

3. The intelligent chromium liquid separation and concentration device according to claim 1 is characterized in that: A fan (7) is installed between the second air duct (6) and the fourth chamber (17), and the fan (7) is fixed to the tank body (1) via a fan bracket (10).

4. The intelligent chromium liquid separation and concentration device according to claim 1 is characterized in that: The atomizing spray assembly comprises a second spray pipe (9), on which a spray head is installed, and the spray head is located in the middle position inside the first chamber (2) and the third chamber (5).

5. The intelligent chromium liquid separation and concentration device according to claim 1 is characterized in that: The flushing spray assembly comprises a first spray pipe (8), the first spray pipe (8) is arranged in a cross shape above the filter cotton (12), and spray heads are also installed on the first spray pipe (8) at equal intervals.

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