A spray-type closed reaction tank for passivation treatment

Abstract

The utility model relates to spray type closed reaction box technical field discloses a spray type closed reaction box for passivation treatment, including reaction box body, reaction box body side end is provided with two spray components, reaction box body side all is provided with filter component, reaction box body top fixedly connected with ventilation frame, ventilation frame inboard is provided with waste gas treatment component, reaction box body side fixedly connected with storage box, storage box inboard is provided with stirring component, the waste gas treatment ventilation component includes baffle, the baffle sets up in the inboard of ventilation frame. In the utility model, the bending structure of baffle drives waste gas flow, thereby realizing that the water mist in waste gas strikes the dehydration on the board wall, makes the waste gas humidity reduction that enters activated carbon layer, avoids the activated carbon adsorption capacity decline, and the activated carbon layer of two layers can carry out the depth adsorption to the material in waste gas.

Description

Technical Field

[0001] This utility model relates to the technical field of spray-type enclosed reaction chambers, and in particular to a spray-type enclosed reaction chamber for passivation treatment. Background Technology

[0002] The spray-type enclosed reaction chamber for passivation treatment is a specialized device designed for metal surface passivation processes. Through the combination of the enclosed chamber structure and the spray system, it achieves uniform generation of passivation film on the metal surface and systematically treats the waste gas and waste liquid during the reaction process to meet environmental protection requirements and process stability.

[0003] Currently, when treating waste gas in a passivation-treated spray-type closed reaction chamber, the waste gas is typically treated directly with activated carbon before being discharged from the reaction chamber. Simply connecting the activated carbon adsorption device to the waste gas emission port allows for rapid deployment. Operators do not require extensive professional training to master the basic operation and daily monitoring of the equipment, making it easy to learn. Especially when treating low-concentration waste gas, it effectively removes pollutants, enabling the emitted gas to meet certain purification standards.

[0004] Although activated carbon is simple and easy to use for waste gas treatment, the moisture in the waste gas preferentially occupies a large number of adsorption sites on the activated carbon, significantly reducing its adsorption capacity for target pollutants. If the waste gas has high humidity, the adsorption efficiency of activated carbon will decline significantly, making it difficult to achieve the desired treatment effect. When treating high-humidity waste gas generated in certain production processes, activated carbon quickly becomes saturated with water vapor and loses its adsorption capacity for pollutants. Therefore, a spray-type closed reaction chamber for passivation treatment is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a spray-type closed reaction box for passivation treatment, which aims to improve the problem that the prior art cannot effectively treat the moisture in the exhaust gas.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A spray-type enclosed reaction chamber for passivation treatment includes a reaction chamber body, two spray components are provided on the side end of the reaction chamber body, filter components are provided on each side of the reaction chamber body, a ventilation frame is fixedly connected to the top of the reaction chamber body, an exhaust gas treatment component is provided inside the ventilation frame, a storage box is fixedly connected to the side of the reaction chamber body, and a stirring component is provided inside the storage box.

[0008] The exhaust gas treatment ventilation assembly includes a baffle plate disposed inside the ventilation frame. Two activated carbon layers are disposed inside the ventilation frame. A fan housing is disposed on the top of the ventilation frame. The two activated carbon layers are disposed between the fan housing and the baffle plate.

[0009] As a further description of the above technical solution:

[0010] The exhaust gas treatment ventilation assembly also includes a bracket, which is fixedly connected to the inner side of the fan housing. A fan is installed inside the bracket, a filter screen is fixedly connected to the end of the fan housing, and an interception plate is fixedly connected to the end of the fan housing away from the filter screen.

[0011] As a further description of the above technical solution:

[0012] The filtration assembly includes a filter tank, which is fixedly connected to the side of the reaction chamber body. A filter basket is fixedly connected to the inside of the filter tank. A water pump is fixedly connected to the inside of the reaction chamber body. An inlet pipe is fixedly connected to the output end of the water pump. The other end of the inlet pipe is fixedly connected to the inside of the filter tank. An outlet pipe is fixedly connected between the filter tank and the storage tank. A drain outlet is fixedly connected to the bottom inside of the filter tank.

[0013] As a further description of the above technical solution:

[0014] The spray assembly includes a second water pump, which is fixedly connected to the bottom of the storage tank. The output end of the second water pump is fixedly connected to a transport pipe. Both output ends of the transport pipe are fixedly connected to connecting pipes. Both connecting pipes are fixedly connected to the inside of the reaction tank body. Multiple nozzles are fixedly connected to the inside of both connecting pipes.

[0015] As a further description of the above technical solution:

[0016] The stirring assembly includes a drive motor, which is fixedly connected to the side of the storage tank. A connecting rod is rotatably connected to the inside of the storage tank. The connecting rod is fixedly connected to the output end of the drive motor. Multiple stirring blades are fixedly connected to the outside of the connecting rod.

[0017] As a further description of the above technical solution:

[0018] A perforated plate is fixedly connected to the inner side of the reaction chamber body, and a drain pipe is fixedly connected to the inner bottom of the reaction chamber body. A valve is provided inside the drain pipe.

[0019] As a further description of the above technical solution:

[0020] A feed pipe is fixedly connected to the inside of the storage box, and multiple bases are fixedly connected to the bottom of the reaction box body;

[0021] As a further description of the above technical solution:

[0022] Each filter tank has a drain outlet fixedly connected to the inner bottom side.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the bending structure of the baffle plate drives the flow of exhaust gas, thereby achieving the dehydration of water mist in the exhaust gas by impacting the plate wall, reducing the humidity of the exhaust gas entering the activated carbon layer, avoiding the decrease of the activated carbon adsorption capacity, and the two layers of activated carbon will deeply adsorb the substances in the exhaust gas. Under the operation of the fan inside the fan shell, the gas and substances inside the reaction chamber are quickly and effectively discharged.

[0025] 2. In this invention, the filter basket physically intercepts debris, sediment, and other impurities, allowing the clean liquid to flow back to the storage tank via the outlet pipe. This achieves a closed-loop circulation of the passivation liquid, effectively improving the recycling rate. The outlet pipe is connected to the inlet of the storage tank, allowing the liquid to directly enter the tank, thus reducing pump energy consumption. Simultaneously, the filtered clean liquid directly replenishes the mixing area of ​​the storage tank, effectively and thoroughly mixing the internal liquid during the operation of the mixing components. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a spray-type enclosed reaction chamber for passivation treatment proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the ventilation frame of a spray-type enclosed reaction chamber for passivation treatment proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the placement orifice plate of a spray-type closed reaction chamber for passivation treatment proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the activated carbon layer in a spray-type closed reaction chamber for passivation treatment proposed in this utility model.

[0030] Figure 5 This is a schematic diagram of the structure of the storage box of a spray-type closed reaction chamber for passivation treatment proposed in this utility model;

[0031] Figure 6 This is a schematic diagram of the structure of a spray-type enclosed reaction chamber for passivation treatment proposed in this utility model;

[0032] Figure 7 This is a schematic diagram of the structure of a filter basket for a spray-type closed reaction chamber used for passivation treatment according to the present invention;

[0033] Figure 8 This is a schematic diagram of the stirring blade of a spray-type enclosed reaction chamber for passivation treatment proposed in this utility model.

[0034] Legend:

[0035] 1. Reaction chamber body; 2. Ventilation frame; 3. Fan housing; 4. Transport pipeline; 5. Filter tank; 6. Storage tank; 7. Water outlet pipe; 8. Water inlet pipe; 9. Water pump one; 10. Orifice plate; 11. Activated carbon layer; 12. Baffle plate; 13. Nozzle; 14. Drain pipe; 15. Feed pipe; 16. Connecting pipe; 17. Water pump two; 18. Filter basket; 19. Drain outlet; 20. Drive motor; 21. Stirring blade; 22. Connecting rod; 23. Base; 24. Filter screen; 25. Support; 26. Fan; 27. Interception plate. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Reference Figure 1 , Figure 3 and Figure 4 An embodiment of this utility model is provided: a spray-type closed reaction box for passivation treatment, including a reaction box body 1, two spray components are provided on the side end of the reaction box body 1, filter components are provided on the side of the reaction box body 1, a ventilation frame 2 is fixedly connected to the top of the reaction box body 1, a waste gas treatment component is provided inside the ventilation frame 2, a storage box 6 is fixedly connected to the side of the reaction box body 1, and a stirring component is provided inside the storage box 6.

[0038] The exhaust gas treatment ventilation assembly includes a baffle plate 12, which is located inside the ventilation frame 2. When the exhaust gas encounters the baffle plate 12 inside the ventilation frame 2, the airflow direction changes, and the droplets in the gas impact the plate wall due to inertia and gather and flow back to the reaction chamber body 1, achieving preliminary demisting. Two activated carbon layers 11 are provided inside the ventilation frame 2. The demisted exhaust gas passes through the two activated carbon layers 11 in sequence. The activated carbon uses its porous structure to adsorb harmful components such as acid mist and volatile organic compounds in the exhaust gas. A fan housing 3 is provided on the top of the ventilation frame 2, and the two activated carbon layers 11 are located between the fan housing 3 and the baffle plate 12. The exhaust gas treatment ventilation assembly also includes a support 25, which is fixedly connected to the inside of the fan housing 3. A fan 26 is provided inside the support 25. A filter screen 24 is fixedly connected to the end of the fan housing 3, and an interceptor plate 27 is fixedly connected to the end of the fan housing 3 away from the filter screen 24. The fan 26 inside the fan housing 3 is started with the support of the bracket 25, forming a negative pressure to draw out the purified exhaust gas. After passing through the filter screen 24 to intercept impurities and the interceptor plate 27 to buffer the airflow, it is discharged to the outside.

[0039] Reference Figure 2 , Figure 5 and Figure 7 The filtration assembly includes a filter tank 5, which is fixedly connected to the side of the reaction chamber body 1. A filter basket 18 is fixedly connected to the inside of the filter tank 5. A water pump 9 is fixedly connected to the inside of the reaction chamber body 1, and an inlet pipe 8 is fixedly connected to the output end of the water pump 9. The other end of the inlet pipe 8 is fixedly connected to the inside of the filter tank 5. An outlet pipe 7 is fixedly connected between the filter tank 5 and the storage tank 6. A drain port 19 is fixedly connected to the bottom inside of the filter tank 5. After the water pump 9 is started, the used passivation liquid in the reaction chamber body 1 flows into the filter tank 5 through the inlet pipe 8. Because the filter basket 18 fixed inside the filter tank 5 has fine mesh, impurities such as metal debris and sediment in the passivation liquid are intercepted. The filtered clean passivation liquid flows back to the storage tank 6 through the outlet pipe 7. A drain port 19 is fixedly connected to the bottom inside of the filter tank 5. When the filter basket 18 traps a large amount of impurities, the drain port 19 at the bottom of the filter tank 5 can be opened to discharge the impurities and maintain the filtration effect.

[0040] Reference Figure 3 , Figure 5 and Figure 6The spray assembly includes a second water pump 17, which is fixedly connected to the bottom of the storage tank 6. A transport pipe 4 is fixedly connected to the output end of the second water pump 17. Connecting pipes 16 are fixedly connected to both output ends of the transport pipe 4. Both connecting pipes 16 are fixedly connected to the inside of the reaction tank body 1, and multiple nozzles 13 are fixedly connected to the inside of each connecting pipe 16. When the second water pump 17 is started, the passivation liquid in the storage tank 6 is diverted through the transport pipe 4 to the two connecting pipes 16. Because multiple nozzles 13 are fixed to the inside of the connecting pipes 16, the pressure generated by the second water pump 17 drives the passivation liquid to be sprayed out in a mist from the nozzles 13, evenly covering the metal workpiece placed on the perforated plate 10 inside the reaction tank body 1, thus achieving passivation treatment.

[0041] Reference Figure 5 and Figure 8 The stirring assembly includes a drive motor 20, which is fixedly connected to the side of the storage tank 6. A connecting rod 22 is rotatably connected to the inside of the storage tank 6, and the connecting rod 22 is fixedly connected to the output end of the drive motor 20. Multiple stirring blades 21 are fixedly connected to the outside of the connecting rod 22. When the drive motor 20 starts, it drives the connecting rod 22 to rotate inside the storage tank 6. As the connecting rod 22 rotates, it drives the stirring blades 21 to rotate as well, stirring the passivation liquid in the storage tank 6. Through continuous stirring, the solute in the passivation liquid is evenly dispersed, preventing precipitation. In conjunction with the feed pipe 15, the passivation liquid is replenished, ensuring the stability of the concentration and flowability of the passivation liquid in the storage tank 6, meeting the requirements of spray treatment.

[0042] Reference Figure 1 , Figure 3 and Figure 8 A perforated plate 10 is fixedly connected to the inner side of the reaction tank body 1, and a drain pipe 14 is fixedly connected to the inner side of the bottom of the reaction tank body 1. The perforated plate 10 is used to support the metal workpiece, and its structural design ensures that the passivation liquid can be evenly sprayed onto the workpiece surface. A valve is installed inside the drain pipe 14. When it is necessary to replace the passivation liquid or perform maintenance on the reaction tank body 1, the valve inside the drain pipe 14 is opened, and the liquid in the tank is discharged through the drain pipe 14 under the action of gravity, which facilitates subsequent operations. A feed pipe 15 is fixedly connected to the inner side of the storage tank 6. The storage tank 6 is replenished with fresh passivation liquid through the feed pipe 15 to maintain a stable internal liquid level. Multiple bases 23 are fixedly connected to the bottom of the reaction tank body 1. The multiple bases 23 at the bottom of the reaction tank body 1 play a supporting and fixing role, ensuring the stability of the equipment during operation and reducing the impact of vibration on the normal operation of each component.

[0043] Working principle: First, the storage tank 6 is replenished with fresh passivation solution through the feed pipe 15. Then, the second water pump 17 is started, causing the passivation solution in the storage tank 6 to be diverted through the transport pipe 4 to the two connecting pipes 16. This allows the passivation solution to be sprayed out in a mist form from the nozzle 13 under the pressure of the second water pump 17, evenly covering the surface of the metal workpiece placed on the perforated plate 10 inside the reaction tank body 1, achieving the sufficient contact required for the passivation reaction.

[0044] The passivation solution sprayed onto the surface of the metal workpiece flows into the bottom of the reaction tank body 1. After the water pump 9 starts, it drives the passivation solution in the reaction tank body 1 into the filter tank 5 through the inlet pipe 8. Because the filter basket 18 fixed inside the filter tank 5 has a fine mesh structure, impurities such as metal debris and precipitates in the passivation solution are intercepted, and the clean passivation solution flows back to the storage tank 6 through the outlet pipe 7. When the filter basket 18 traps too many impurities, the drain port 19 at the bottom of the filter tank 5 is opened to discharge the impurities, thus completing the filtration cycle.

[0045] When exhaust gas treatment is required, the fan 26 inside the fan housing 3 is first started, causing it to rotate within the bracket 25. This draws the exhaust gas outward. The flowing exhaust gas first encounters the baffle 12 inside the ventilation frame 2, causing a sudden change in airflow direction. Liquid droplets within the gas accumulate due to inertia as they impact the baffle wall and flow back to the reaction chamber body 1, achieving initial dehydration. Next, the demisted exhaust gas passes through two activated carbon layers 11, where the porous structure of the activated carbon adsorbs harmful components. Finally, it is discharged from the fan housing 3 to the outside.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A spray-type enclosed reaction chamber for passivation treatment, comprising a reaction chamber body (1), characterized in that: Two spray components are provided on the side end of the reaction chamber body (1), and filter components are provided on the side of the reaction chamber body (1). A ventilation frame (2) is fixedly connected to the top of the reaction chamber body (1), and a waste gas treatment component is provided inside the ventilation frame (2). A storage box (6) is fixedly connected to the side of the reaction chamber body (1), and a stirring component is provided inside the storage box (6). The exhaust gas treatment ventilation assembly includes a baffle plate (12), which is disposed inside the ventilation frame (2). Two activated carbon layers (11) are disposed inside the ventilation frame (2). A fan shell (3) is disposed on the top of the ventilation frame (2). The two activated carbon layers (11) are disposed between the fan shell (3) and the baffle plate (12).

2. The spray-type enclosed reaction chamber for passivation treatment according to claim 1, characterized in that: The exhaust gas treatment ventilation assembly also includes a bracket (25), which is fixedly connected to the inside of the fan housing (3). A fan (26) is installed inside the bracket (25). A filter screen (24) is fixedly connected to the end of the fan housing (3). An interceptor plate (27) is fixedly connected to the end of the fan housing (3) away from the filter screen (24).

3. A spray-type enclosed reaction chamber for passivation treatment according to claim 1, characterized in that: The filtration assembly includes a filter tank (5), which is fixedly connected to the side of the reaction tank body (1). A filter basket (18) is fixedly connected to the inside of the filter tank (5). A water pump (9) is fixedly connected to the inside of the reaction tank body (1). An inlet pipe (8) is fixedly connected to the output end of the water pump (9). The other end of the inlet pipe (8) is fixedly connected to the inside of the filter tank (5). An outlet pipe (7) is fixedly connected between the filter tank (5) and the storage tank (6). A drain outlet (19) is fixedly connected to the bottom inside of the filter tank (5).

4. A spray-type enclosed reaction chamber for passivation treatment according to claim 1, characterized in that: The spray assembly includes a second water pump (17), which is fixedly connected to the bottom of the storage tank (6). The output end of the second water pump (17) is fixedly connected to a transport pipe (4). Both output ends of the transport pipe (4) are fixedly connected to connecting pipes (16). Both connecting pipes (16) are fixedly connected to the inside of the reaction tank body (1). Both connecting pipes (16) are fixedly connected to multiple nozzles (13).

5. A spray-type enclosed reaction chamber for passivation treatment according to claim 1, characterized in that: The stirring assembly includes a drive motor (20), which is fixedly connected to the side of the storage tank (6). A connecting rod (22) is rotatably connected to the inside of the storage tank (6). The connecting rod (22) is fixedly connected to the output end of the drive motor (20). Multiple stirring blades (21) are fixedly connected to the outside of the connecting rod (22).

6. A spray-type enclosed reaction chamber for passivation treatment according to claim 1, characterized in that: The reaction chamber body (1) is fixedly connected to a perforated plate (10) on the inner side, and a drain pipe (14) is fixedly connected to the bottom inner side of the reaction chamber body (1). A valve is provided on the inner side of the drain pipe (14).

7. A spray-type enclosed reaction chamber for passivation treatment according to claim 1, characterized in that: The storage box (6) is fixedly connected to the inside of the feed pipe (15), and the reaction box body (1) is fixedly connected to the bottom of the bottom of the base (23).

8. A spray-type enclosed reaction chamber for passivation treatment according to claim 3, characterized in that: Each filter tank (5) has a drain port (19) fixedly connected to the bottom inner side.

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