Chromium fog waste gas recovery treatment device

Abstract

The utility model discloses a chromium fog waste gas recovery processing device which comprises a supporting bottom frame, and the top of the supporting bottom frame is fixedly connected with a liquid collecting box. The chromium fog waste gas recovery processing device has the advantages that a spiral cold air guiding pipe, a cold guiding circulating liquid pipe and a liquid discharging pipe are arranged, and low-temperature cooling liquid is input into the cold guiding circulating liquid pipe and discharged through the liquid discharging pipe; cooling liquid is continuously input into the cold guiding circulating liquid pipe, meanwhile, the cooling liquid is stored in the water storage tank, the temperature of the cooling liquid in the water storage tank is monitored through a temperature sensor, chromium fog waste gas enters the spiral cold guiding air pipe to be cooled and enters the liquid collecting tank through a communicating cavity to be collected, and gas is pumped out through a draught fan and treated. And the activated carbon storage net cage and the fixed top frame are arranged, activated carbon is contained in the activated carbon storage net cage to adsorb gas, the activated carbon storage net cage is conveniently detached, and the activated carbon in the activated carbon storage net cage is conveniently replaced.

Description

Technical Field

[0001] This utility model relates to the field of waste gas recovery technology, specifically a chromium mist waste gas recovery and treatment device. Background Technology

[0002] Chromium mist, especially hexavalent chromic acid mist, mainly originates from industries such as electroplating, chemical processing, leather processing, metal surface treatment, and printing and dyeing. In current chromium mist collection practices, filters are widely used as a common method. However, a common problem encountered in actual operation is that liquid tends to adhere to the filter screen and is difficult to detach naturally. This not only affects the filtration efficiency of the filter screen but may also lead to a decline in the performance of the collection system due to filter screen blockage. Utility Model Content

[0003] The purpose of this invention is to provide a chromium mist exhaust gas recovery and treatment device to solve the problem mentioned in the background art that liquid easily adheres to the filter screen and is difficult to fall off naturally, which not only affects the filtration efficiency of the filter screen, but may also lead to a decline in the performance of the collection system due to filter screen blockage.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a chromium mist waste gas recovery and treatment device, comprising a supporting base frame, a collection liquid tank fixedly connected to the top of the supporting base frame, a water storage tank fixedly connected to the top of the collection liquid tank, a communicating cavity opened at the bottom of the water storage tank, the communicating cavity communicating with the collection liquid tank, a cooling circulating liquid pipe fixedly connected inside the water storage tank, a spiral cooling air pipe fixedly connected to the outside of the cooling circulating liquid pipe, the spiral cooling air pipe being fixedly connected to the water storage tank, and the spiral cooling air... One end of the pipe is connected to the connecting cavity, and the other end of the spiral cooling air pipe is fixedly connected to an air inlet pipe. The bottom end of the cooling circulating liquid pipe is fixedly connected to a drain pipe, which is fixedly connected to a water storage tank. A ventilation box is fixedly connected to the top of the support base, and an activated carbon storage mesh box is installed inside the ventilation box. A fan is installed on the top of the support base, and the input end of the fan is connected to the connecting cavity through a duct. A distribution air box is fixedly connected inside the ventilation box, and the output end of the fan is connected to the distribution air box through a duct.

[0005] As a preferred embodiment of this utility model: an air outlet pipe is fixedly connected to one side of the ventilation box, and an external filter screen is fixedly connected to one side of the air outlet pipe.

[0006] As a preferred embodiment of this utility model: a coolant inlet pipe is fixedly connected to one side of the water tank, and a coolant outlet pipe is fixedly connected to one side of the water tank.

[0007] As a preferred embodiment of this utility model: the top of the activated carbon storage mesh box is fixedly connected to a fixed top frame, and the top of the fixed top frame is symmetrically fixedly connected to four threaded rods.

[0008] As a preferred embodiment of this utility model: the top of the ventilation box is fitted with a sealing cover by bolts, the bottom of the sealing cover is provided with a bottom sealing groove that cooperates with the fixed top frame, the inside of the bottom sealing groove is provided with symmetrical mounting through holes that cooperate with the threaded rod, and the outside of the threaded rod is threaded with an outer limiting nut.

[0009] As a preferred embodiment of this utility model: a temperature sensor is installed inside the water storage tank, and a chromic acid solution drain pipe is fixedly connected to one side of the collection tank.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model is equipped with a spiral cooling air pipe, a cooling circulating liquid pipe, and a drain pipe. Low-temperature coolant is introduced into the cooling circulating liquid pipe and discharged through the drain pipe. Coolant is continuously introduced into the cooling circulating liquid pipe, while coolant is stored in a water tank. The temperature of the coolant in the water tank is monitored by a temperature sensor. Chromium mist exhaust gas enters the spiral cooling air pipe for cooling and enters the collection liquid tank through the connecting cavity for collection. The gas is extracted and treated by a fan. An activated carbon storage mesh box and a fixed top frame are set up. The activated carbon storage mesh box is filled with activated carbon to adsorb the gas, which facilitates the disassembly of the activated carbon storage mesh box and the replacement of the activated carbon in the activated carbon storage mesh box. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the internal structure of this utility model;

[0012] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0013] Figure 3 This is a schematic diagram of the disassembly structure of the closed cover and fixed top frame of this utility model.

[0014] In the diagram: 1. Support frame; 2. Collection tank; 3. Fan; 4. Ventilation box; 5. Water tank; 6. Cooling circulation pipe; 7. External filter; 8. Drain pipe; 9. Spiral cooling air pipe; 10. Inlet pipe; 11. Outlet pipe; 12. Temperature sensor; 13. Flow box; 14. Coolant inlet pipe; 15. Coolant outlet pipe; 16. Connecting cavity; 17. Chromic acid drain pipe; 18. Activated carbon storage mesh box; 19. Fixed top frame; 20. Threaded rod; 21. Sealing cover; 22. Bottom sealing groove; 23. Mounting through hole; 24. External limiting nut. Detailed Implementation

[0015] 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.

[0016] Please see Figures 1 to 3 This utility model provides a technical solution: a chromium mist waste gas recovery and treatment device, including a supporting base frame 1, a collection liquid tank 2 fixedly connected to the top of the supporting base frame 1, a water storage tank 5 fixedly connected to the top of the collection liquid tank 2, a communicating cavity 16 opened at the bottom of the water storage tank 5, the communicating cavity 16 communicating with the collection liquid tank 2, a cooling circulating liquid pipe 6 fixedly connected inside the water storage tank 5, a spiral cooling air pipe 9 fixedly connected to the outside of the cooling circulating liquid pipe 6, the spiral cooling air pipe 9 fixedly connected to the water storage tank 5, one end of the spiral cooling air pipe 9 communicating with the communicating cavity 16, and the other end of the spiral cooling air pipe 9 fixed. An air inlet pipe 10 is connected to the bottom of a cooling circulating liquid pipe 6, and a drain pipe 8 is fixedly connected to the bottom of the pipe. The drain pipe 8 is fixedly connected to a water storage tank 5. A ventilation box 4 is fixedly connected to the top of the support base 1. An activated carbon storage mesh box 18 is installed inside the ventilation box 4. A fan 3 is installed on the top of the support base 1. The input end of the fan 3 is connected to the connecting cavity 16 through a duct. A diversion box 13 is fixedly connected inside the ventilation box 4. The output end of the fan 3 is connected to the diversion box 13 through a duct. The fan 3 draws the exhaust gas from the connecting cavity 16 into the diversion box 13 and diverts it into the ventilation box 4 for treatment.

[0017] The ventilation box 4 is fixedly connected to one side of an air outlet pipe 11, and an external filter screen 7 is fixedly connected to one side of the air outlet pipe 11. The gas inside the ventilation box 4 is discharged through the air outlet pipe 11 and the external filter screen 7.

[0018] The water tank 5 is fixedly connected to a coolant inlet pipe 14 on one side and a coolant outlet pipe 15 on the other side. Coolant is introduced into the water tank 5 through the coolant inlet pipe 14 and discharged through the coolant outlet pipe 15 to replace the coolant.

[0019] The activated carbon storage mesh box 18 is fixedly connected to a fixed top frame 19, and four threaded rods 20 are symmetrically fixedly connected to the top of the fixed top frame 19. The fixed top frame 19 limits the placement of the activated carbon storage mesh box 18 in the ventilation box 4.

[0020] The top of the ventilation box 4 is bolted with a sealing cover 21. The bottom of the sealing cover 21 has a bottom sealing groove 22 that mates with the fixed top frame 19. The bottom sealing groove 22 has symmetrical mounting through holes 23 that mate with the threaded rod 20. The outer side of the threaded rod 20 is threaded with an outer limiting nut 24. The threaded rod 20 enters the mounting through hole 23, and the outer limiting nut 24 is threaded on the outer side of the mounting through hole 23, thus sealing the sealing cover 21 on the fixed top frame 19.

[0021] The water tank 5 is equipped with a temperature sensor 12, and a chromic acid drain pipe 17 is fixedly connected to one side of the collection tank 2. The temperature of the coolant stored in the water tank 5 is monitored by the temperature sensor 12.

[0022] Specifically, during use, chromium mist exhaust gas is introduced into the spiral cooling pipe 9 through the air inlet pipe 10, and coolant is introduced into the water tank 5 through the coolant inlet pipe 14. The temperature of the coolant in the water tank 5 is monitored by the temperature sensor 12. Coolant is continuously introduced into the cooling circulation pipe 6 and discharged through the drain pipe 8. The coolant in the water tank 5 and the coolant flowing in the cooling circulation pipe 6 cool the chromium mist exhaust gas in the spiral cooling pipe 9. After cooling, the chromium mist exhaust gas condenses and is recovered, entering the connecting cavity 16 through the spiral cooling pipe 9. The waste is collected and processed in the collection tank 2. The waste is drawn in by the blower 3 and enters the diversion box 13 through the air duct. It is then blown into the ventilation box 4 through the diversion box 13. The gas is adsorbed by the activated carbon in the activated carbon storage mesh box 18 and then discharged through the outlet pipe 11 and the outer filter screen 7. Remove the bolts connecting the sealing cover 21 and the ventilation box 4, and remove the outer limiting nut 24 on the outside of the threaded rod 20. Then the sealing cover 21 on the outside of the fixed top frame 19 can be removed. Remove the fixed top frame 19 and the activated carbon storage mesh box 18 to complete the replacement of the activated carbon.

[0023] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chromium mist exhaust gas recovery and treatment device, comprising a supporting base frame (1), characterized in that, A liquid collection tank (2) is fixedly connected to the top of the support frame (1), and a water storage tank (5) is fixedly connected to the top of the liquid collection tank (2). A connecting cavity (16) is opened at the bottom of the water storage tank (5), and the connecting cavity (16) is connected to the liquid collection tank (2). A cooling circulation pipe (6) is fixedly connected inside the water storage tank (5), and a spiral cooling air pipe (9) is fixedly connected to the outside of the cooling circulation pipe (6). The spiral cooling air pipe (9) is fixedly connected to the water storage tank (5), and one end of the spiral cooling air pipe (9) is connected to the connecting cavity (16). An air inlet pipe (10) is fixedly connected to one end of the cooling circulating liquid pipe (6), and a drain pipe (8) is fixedly connected to the bottom end of the pipe. The drain pipe (8) is fixedly connected to the water tank (5). A ventilation box (4) is fixedly connected to the top of the support frame (1). An activated carbon storage mesh box (18) is installed inside the ventilation box (4). A fan (3) is installed on the top of the support frame (1). The input end of the fan (3) is connected to the connecting cavity (16) through a duct. A diversion air box (13) is fixedly connected inside the ventilation box (4). The output end of the fan (3) is connected to the diversion air box (13) through a duct.

2. The chromium mist exhaust gas recovery and treatment device according to claim 1, characterized in that: An air outlet pipe (11) is fixedly connected to one side of the ventilation box (4), and an external filter screen (7) is fixedly connected to one side of the air outlet pipe (11).

3. The chromium mist waste gas recovery and treatment device according to claim 1, characterized in that: A coolant inlet pipe (14) is fixedly connected to one side of the water tank (5), and a coolant outlet pipe (15) is fixedly connected to one side of the water tank (5).

4. The chromium mist waste gas recovery and treatment device according to claim 1, characterized in that: The top of the activated carbon storage mesh box (18) is fixedly connected to a fixed top frame (19), and four threaded rods (20) are symmetrically fixedly connected to the top of the fixed top frame (19).

5. The chromium mist exhaust gas recovery and treatment device according to claim 4, characterized in that: The top of the ventilation box (4) is fitted with a sealing cover (21) by bolts. The bottom of the sealing cover (21) is provided with a bottom sealing groove (22) that cooperates with the fixed top frame (19). The bottom sealing groove (22) is symmetrically provided with mounting through holes (23) that cooperate with the threaded rod (20). The outer side of the threaded rod (20) is threaded with an outer limiting nut (24).

6. The chromium mist exhaust gas recovery and treatment device according to claim 1, characterized in that: A temperature sensor (12) is installed inside the water storage tank (5), and a chromic acid liquid drain pipe (17) is fixedly connected to one side of the collection tank (2).

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