Waste gas purification device for smoke washing waste water pool

Abstract

The utility model relates to the technical field of waste gas purification, and discloses a waste gas purification device of a smoke washing waste water pool, which comprises an exhaust pipe, two branch pipes are communicated on the exhaust pipe, one end of each branch pipe close to the exhaust pipe is provided with an electromagnetic valve, each branch pipe is provided with an opening, an absorption box is arranged in each branch pipe, and the absorption boxes are communicated with the exhaust pipe. The top of the absorption box penetrates through the opening, a mounting plate is fixed to the top of the absorption box, the side wall of the absorption box is slidably connected with the inner side of the opening, activated carbon is arranged in the absorption box, and a plurality of flow guide holes are formed in the two side walls, perpendicular to the waste gas flowing direction, of the absorption box. And a mixing assembly for fully absorbing the activated carbon is arranged in the absorption box. When the waste gas purification device for the smoke washing waste water pool is used, the uniform distribution of activated carbon in the whole absorption box is ensured, the utilization rate of the activated carbon is improved, the replacement frequency and the use cost are reduced, meanwhile, the full absorption of harmful substances in smoke is also ensured, and the environmental pollution is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas purification, in particular to a waste gas purification device for a cigarette washing wastewater pool. Background Art

[0002] The wet alkaline deacidification system is a commonly used technical means to treat flue gas generated by waste incineration. In the deacidification system, the alkaline solution used to wash the flue gas will absorb a large amount of acidic gas, which leads to the generation of wastewater in the flue gas washing wastewater pool, that is, the collection pool under the washing tower. This part of the wastewater not only contains a high concentration of salt, but may also contain incompletely reacted acidic gases, suspended particulate matter, heavy metal ions and organic pollutants. These wastewaters will release waste gas containing sulfur dioxide, hydrogen sulfide, ammonia and other volatile organic compounds during the collection process. Common waste gas treatment methods include biological deodorization, adsorption and combustion.

[0003] In the adsorption method, activated carbon is a widely used adsorbent. As the activated carbon adsorbs the flue gas, dust and particulate matter will accumulate in the activated carbon bed, especially the activated carbon close to the flue gas side will adsorb more harmful substances than the activated carbon away from the flue gas side, which increases the resistance of the bed, resulting in the upper activated carbon may be overused while the lower activated carbon is not fully utilized. Secondly, when the gas inlet is improperly designed or the gas flow rate is uneven, the airflow may be biased to a certain part of the pipeline, and the exhaust gas is unevenly distributed when entering the activated carbon bed. The activated carbon in some areas may be exposed to more gas, while the activated carbon in other areas has less contact, which reduces the utilization rate of these activated carbons, increases operating costs and waste of resources, and the activated carbon particles that are not fully in contact with the exhaust gas cannot play their adsorption role, resulting in some harmful substances not being effectively removed and remaining in the exhaust gas flow, affecting the adsorption capacity of the activated carbon, and thus causing environmental pollution.

[0004] Therefore, it is necessary to design a waste gas purification device for a cigarette washing wastewater pool to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a waste gas purification device for a cigarette washing wastewater pool.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A waste gas purification device for a tobacco washing wastewater pool comprises an exhaust pipe, two branches are connected to the exhaust pipe, a solenoid valve is provided at one end of the branch pipe close to the exhaust pipe, an opening is provided on the branch pipe, an absorption box is provided in the branch pipe, the top of the absorption box passes through the opening, and a mounting plate is fixed to the top of the absorption box, the side walls of the absorption box are slidably connected to the inner side of the opening, activated carbon is provided inside the absorption box, a number of guide holes are provided on both side walls of the absorption box perpendicular to the flow direction of the exhaust gas, and a mixing component for fully absorbing the activated carbon is provided inside the absorption box.

[0008] As an optimal technical solution of the present invention, the mixing assembly includes a sleeve fixedly connected to the inside of the absorption box, and the absorption box is coaxial with the sleeve. A screw conveying device is provided inside the sleeve, the top end of the rotating shaft of the screw conveying device extends above the mounting plate, and the bottom end of the rotating shaft of the screw conveying device is rotatably connected to the inner bottom surface of the sleeve, two discharge ports are provided at the top end of the side wall of the sleeve, and two feed ports are provided at the bottom end of the side wall of the sleeve.

[0009] As a preferred technical solution of the present invention, the side walls of the rotating shaft of the screw conveying device are fixedly connected to two connecting rods, and a push plate is fixed to the bottom of the connecting rods.

[0010] As a preferred technical solution of the present utility model, a fixing component is provided between the mounting plate and the branch pipe, and the fixing component includes two rotating shafts rotatably connected to the branch pipe, the two rotating shafts are respectively located on both sides of the opening, and the height of the rotating shaft is the same as the thickness of the mounting plate, a connecting plate is fixed on the rotating shaft, and the connecting plate has a rectangular structure, and two mounting openings are provided on the mounting plate, and the mounting openings are adapted to the connecting plate.

[0011] As a preferred technical solution of the present invention, a gasket is fixed to the bottom of the connecting plate, the gasket is made of rubber material, and both ends of the gasket are provided with inclined surfaces.

[0012] As a preferred technical solution of the present invention, a screwing plate is fixed to the top end of the connecting plate, and anti-slip grooves are provided on the side walls of the screwing plate.

[0013] The utility model has the following beneficial effects:

[0014] 1. Improve adsorption uniformity: By setting diversion holes on the absorption box, the flue gas is evenly dispersed. The combination of the spiral conveying device and the push plate not only changes the position of the activated carbon in the vertical direction, but also changes the position of the activated carbon in the horizontal direction, ensuring the uniform distribution of the activated carbon in the entire absorption box, avoiding local activated carbon adsorption overload, improving the contact efficiency and uniformity between the flue gas and the activated carbon, improving its utilization rate, and reducing the replacement frequency and use cost;

[0015] 2. Prevent adsorption saturation: Regular operation of the spiral conveying device can effectively prevent the activated carbon from being oversaturated in a certain area, thereby reducing the resistance of the flue gas and maintaining good airflow performance of the system. At the same time, it also ensures the full absorption of harmful substances in the flue gas and prevents environmental pollution.

[0016] 3. Continuous operation capability: The dual-branch design and the switching function of the solenoid valve allow the system to automatically switch to the other branch to continue exhaust gas treatment when the activated carbon in one branch is saturated, thus ensuring the continuity of the treatment process and avoiding production interruptions caused by stopping the machine to replace activated carbon.

[0017] 4. Simplify the maintenance process: The quick disassembly and assembly design of the absorption box makes the replacement of activated carbon quick and convenient through the simple coordination of the connecting plate and the installation port, reducing maintenance time and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of an exhaust gas purification device for a cigarette washing wastewater pool proposed in the utility model;

[0019] Figure 2 for Figure 1 A magnified view of some structures;

[0020] Figure 3 is a structural diagram of the connecting plate;

[0021] Figure 4 Schematic diagram of the internal structure of the absorption box;

[0022] Figure 5 It is a structural diagram of the sleeve and the push plate.

[0023] In the figure: 1 exhaust pipe, 2 branch pipe, 3 solenoid valve, 4 opening, 5 absorption box, 6 mounting plate, 7 guide hole, 8 activated carbon, 9 mounting port, 10 connecting plate, 11 rotating shaft, 12 sleeve, 13 screw conveyor, 14 feed port, 15 discharge port, 16 push plate, 17 connecting rod, 18 gasket, 19 screw plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] Reference Figure 1-5, a waste gas purification device for a tobacco washing wastewater pool, including an exhaust pipe 1, which is connected to two branch pipes 2. The branch pipe 2 is provided with a solenoid valve 3 at one end near the exhaust pipe 1. By setting the two branch pipes 2 and the solenoid valve 3, there is no need to pause the entire device when performing maintenance work on one of the branch pipes 2, thereby ensuring the efficiency of flue gas treatment. An opening 4 is opened on the branch pipe 2, and an absorption box 5 is arranged in the branch pipe 2. The top of the absorption box 5 passes through the opening 4, and a mounting plate 6 is fixed to the top of the absorption box 5. The side wall of the absorption box 5 is slidably connected to the inner side of the opening 4, and activated carbon 8 is arranged inside the absorption box 5. A number of guide holes 7 are opened on the two side walls of the absorption box 5 perpendicular to the flow direction of the exhaust gas. The guide holes 7 allow the flue gas entering the absorption box 5 to be dispersed, thereby increasing the contact area between the flue gas and the activated carbon 8, and a mixing component for fully absorbing the activated carbon 8 is provided inside the absorption box 5.

[0026] Reference Figure 4 and Figure 5 The mixing assembly includes a sleeve 12 fixedly connected to the inside of the absorption box 5, and the absorption box 5 is coaxial with the sleeve 12. A spiral conveying device 13 is provided inside the sleeve 12. The spiral conveying device 13 is composed of a rotating shaft and a spiral blade. The spiral blade is fixedly sleeved on the rotating shaft. The top end of the rotating shaft of the spiral conveying device 13 extends above the mounting plate 6, and the bottom end of the rotating shaft of the spiral conveying device 13 is rotatably connected to the inner bottom surface of the sleeve 12. Two discharge ports 15 are provided at the top position of the side wall of the sleeve 12. The two discharge ports 15 are The sleeve 12 is symmetrically arranged with two feed ports 14 at the bottom end of the side wall. The two feed ports 14 are also symmetrically arranged, so that the activated carbon 8 in different directions can be mixed in the sleeve 12, thereby improving the mixing effect of the device. The side wall of the rotating shaft of the spiral conveying device 13 is fixedly connected to two connecting rods 17, and a push plate 16 is fixed to the bottom of the connecting rod 17. The push plate 16 can push the rotation of the activated carbon 8 in the horizontal direction, so that the activated carbon 8 in different directions can be directed toward the flue gas inlet in turn, thereby improving the utilization rate of the activated carbon 8.

[0027] Reference Figure 2 and Figure 3A fixing assembly is provided between the mounting plate 6 and the branch pipe 2, and the fixing assembly includes two rotating shafts 11 rotatably connected to the branch pipe 2. The two rotating shafts 11 are respectively located on both sides of the opening 4, and the height of the rotating shaft 11 is the same as the thickness of the mounting plate 6. A connecting plate 10 is fixed on the rotating shaft 11, and the connecting plate 10 is a rectangular structure. Two mounting openings 9 are provided on the mounting plate 6, and the mounting openings 9 are adapted to the connecting plate 10. A gasket 18 is fixed to the bottom of the connecting plate 10, and the gasket 18 is made of rubber material. The gasket 18 can fill the gap between the connecting plate 10 and the mounting plate 6, so that the connecting plate 10 can be pressed downward against the mounting plate 6, thereby improving the stability of the absorption box 5. Both ends of the gasket 18 are provided with inclined surfaces, and a screwing plate 19 is fixed to the top of the connecting plate 10. The side wall of the screwing plate 19 is provided with anti-slip grooves, which is convenient for the staff to rotate the connecting plate 10.

[0028] The specific working principle of this utility model is as follows:

[0029] When it is necessary to treat the exhaust gas from the smoke washing pool, open one of the solenoid valves 3 to allow the smoke to enter the corresponding branch pipe 2. The smoke can be dispersed into the absorption box 5 through a number of guide holes 7, thereby improving the uniformity of the smoke entering the absorption box 5. The activated carbon 8 can adsorb the harmful substances in the smoke. The staff regularly rotates the rotating shaft of the spiral conveying device 13 to rotate the spiral blades in the spiral conveying device 13. The activated carbon 8 entering the sleeve 12 through the feed port 14 can be moved to the top position inside the sleeve 12 under the action of the spiral blades and discharged through the discharge port 15. In this way, the activated carbon 8 in the absorption box 5 can be vertically distributed. The upper position occurs, further, when the rotating shaft of the spiral conveying device 13 rotates, the connecting rod 17 and the push plate 16 are driven to rotate. The push plate 16 can change the position of the activated carbon 8 in the horizontal direction, especially the activated carbon 8 facing away from the flue gas inlet is moved to the position facing the flue gas inlet, so that the activated carbon 8 can evenly and fully absorb the toxic substances in the flue gas. This can improve the utilization rate of the activated carbon 8 and reduce the cost of use. On the other hand, it can prevent the harmful substances in the flue gas from being insufficiently absorbed and discharged into the atmosphere to cause environmental pollution. At the same time, it also prevents the activated carbon 8 near the flue gas inlet from having an excessively large adsorption amount, which causes an increase in the resistance to the passage of the flue gas.

[0030] Furthermore, when the activated carbon 8 in one of the branch pipes 2 is saturated with absorption, the solenoid valve 3 on the other branch pipe 2 is opened, and the solenoid valve 3 on the branch pipe 2 is closed, so that the flue gas can completely flow into the other branch pipe 2. In this way, there is no need to pause the entire device when replacing the activated carbon 8, thereby ensuring the normal progress of the flue gas treatment operation. During replacement, the staff rotates the connecting plate 10 so that the connecting plate 10 overlaps with the installation port 9, and then lifts the installation plate 6 and the absorption box 5 to replace the activated carbon 8. Conversely, the absorption box 5 is placed into the branch pipe 2 through the opening 4. During the placement process, the connecting plate 10 passes through the installation port 9, and then the rotating shaft 11 and the connecting plate 10 are rotated ninety degrees so that the connecting plate 10 and the installation port 9 are perpendicular to each other when viewed from above, thereby achieving the fixation of the absorption box 5, and the operation is simple and convenient.

[0031] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A waste gas purification device for a tobacco washing wastewater pool, comprising an exhaust pipe (1), characterized in that: The exhaust pipe (1) is connected to two branch pipes (2), and a solenoid valve (3) is provided at one end of the branch pipe (2) close to the exhaust pipe (1). An opening (4) is provided on the branch pipe (2). An absorption box (5) is provided inside the branch pipe (2), and the top of the absorption box (5) passes through the opening (4). A mounting plate (6) is fixed to the top of the absorption box (5). The side wall of the absorption box (5) is slidably connected to the inner side of the opening (4). Activated carbon (8) is provided inside the absorption box (5). A plurality of guide holes (7) are provided on both side walls of the absorption box (5) perpendicular to the flow direction of the exhaust gas. A mixing component for fully absorbing the activated carbon (8) is provided inside the absorption box (5).

2. The exhaust gas purification device for a tobacco washing wastewater pool according to claim 1 is characterized in that: The mixing assembly includes a sleeve (12) fixedly connected to the inside of the absorption box (5), and the absorption box (5) and the sleeve (12) are coaxial. A screw conveying device (13) is provided inside the sleeve (12), the top end of the rotating shaft of the screw conveying device (13) extends above the mounting plate (6), and the bottom end of the rotating shaft of the screw conveying device (13) is rotatably connected to the inner bottom surface of the sleeve (12). Two discharge ports (15) are provided at the top end of the side wall of the sleeve (12), and two feed ports (14) are provided at the bottom end of the side wall of the sleeve (12).

3. The exhaust gas purification device for a tobacco washing wastewater pool according to claim 2 is characterized in that: Two connecting rods (17) are fixedly connected to the side walls of the rotating shaft of the screw conveying device (13), and a push plate (16) is fixed to the bottom of the connecting rod (17).

4. The exhaust gas purification device for a tobacco washing wastewater pool according to claim 1 is characterized in that: A fixing assembly is provided between the mounting plate (6) and the branch pipe (2), and the fixing assembly comprises two rotating shafts (11) rotatably connected to the branch pipe (2). The two rotating shafts (11) are respectively located on both sides of the opening (4), and the height of the rotating shafts (11) is the same as the thickness of the mounting plate (6). A connecting plate (10) is fixed on the rotating shaft (11), and the connecting plate (10) is a rectangular structure. Two mounting openings (9) are provided on the mounting plate (6), and the mounting openings (9) are adapted to the connecting plate (10).

5. The exhaust gas purification device for a tobacco washing wastewater pool according to claim 4 is characterized in that: A gasket (18) is fixed to the bottom of the connecting plate (10), the gasket (18) is made of rubber material, and both ends of the gasket (18) are provided with inclined surfaces.

6. The exhaust gas purification device for a cigarette washing wastewater pool according to claim 5, characterized in that: A screwing plate (19) is fixed to the top end of the connecting plate (10), and anti-slip grooves are provided on the side wall of the screwing plate (19).

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