Waste gas purification tower for chemical safety production

Abstract

The utility model discloses a waste gas purification tower for chemical safety production, and belongs to the technical field of chemical waste gas treatment. A chemical safety production waste gas purification tower comprises a tower body, a smoke inlet pipe, a filler layer, a water tank, a first water pipe, a shell, blades, a second water pipe, a drainage pipe and a spraying pipe, and a stirring rod which is rotationally arranged on the water tank and is in linkage with a connecting shaft is fixed to the spraying pipe; through cooperation of the first water pipe, the shell, the connecting shaft, the blades, the second water pipe and the spraying pipe, spraying purification and secondary pollution of flue gas can be achieved, automatic circulation and spraying of water are achieved, the utilization rate of water resources is increased, meanwhile, the stirring rod can be used for being matched with rotation of the spraying pipe through power of the connecting shaft, and the stirring effect is improved. And water mist sprayed by the spray pipe in a rotating manner can cover the internal space of the tower body more comprehensively, so that a spraying blind area possibly existing in traditional fixed spray is avoided, and the purification efficiency and effect are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical waste gas treatment, and more specifically, to a chemical production safety waste gas purification tower. Background Art

[0002] With the rapid development of various industrial and other production enterprises, industrial waste gas will be generated in the production process. If these waste gases are not treated and are directly discharged into the atmosphere in large quantities, they will inevitably cause air pollution and cause certain damage to the environment we live in. In particular, chemical plants often emit waste gases with a strong odor, which will seriously pollute the environment and affect human health. Therefore, the waste gas must be sprayed and purified. Since chemical plants usually produce continuously, the amount of water required for spraying also increases. This not only aggravates the consumption and waste of water resources, but also may cause secondary pollution problems because the wastewater in the purification tower is difficult to be discharged in time, ultimately reducing the overall efficiency of waste gas purification. Therefore, in response to this problem, the utility model proposes a chemical production safety waste gas purification tower. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a chemical production safety waste gas purification tower that can overcome the above problems or at least partially solve the above problems.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A chemical production safety waste gas purification tower includes a tower body, wherein the left side of the tower body near the bottom is connected to a smoke inlet pipe, a packing layer is provided between the inner walls of the tower body, the top of the tower body is connected to a smoke outlet pipe, the bottom of the tower body is connected to a water tank, the right side of the water tank is connected to a water pipe 1, the other end of the water pipe 1 is connected to a circular shell, a connecting shaft is rotatably provided on the shell, a plurality of circular blades that fit the inner wall of the shell are fixed on the connecting shaft, a water pipe 2 with a control valve is connected to the lower surface of the shell, a drain pipe with a control valve is connected to the water pipe 2, the other end of the water pipe 2 is connected to a spray pipe located above the packing layer through a bearing, and a stirring rod that is rotatably provided on the water tank and is linked to the connecting shaft is fixed on the spray pipe.

[0006] Preferably, the diameter of the smoke outlet pipe gradually decreases from the bottom end to the top end.

[0007] Preferably, the diameter of the inner wall of the water tank gradually decreases from top to bottom, and the left side of the water tank is connected to a water inlet pipe with a control valve.

[0008] Preferably, one end of the water pipe located inside the water tank is arranged to be inclined downward, and a filter is provided at the port arranged to be inclined downward.

[0009] Preferably, a plurality of L-shaped support rods distributed in a circumference are fixed on the tower body, and a base plate is fixed between the bottom ends of each of the L-shaped support rods.

[0010] Preferably, an arc-shaped support plate is fixed on the shell, and a pair of support rods connected to the top of the base plate are fixed on the arc-shaped support plate.

[0011] Preferably, a bevel gear 1 located below the bottom of the water tank is fixed on the stirring rod, a matching bevel gear 2 is connected to the bevel gear 1, and the bevel gear 2 is fixed on one end on the left side of the connecting shaft.

[0012] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: the present invention can realize the spray purification and secondary pollution of flue gas through the coordinated cooperation of water pipe 1, shell, connecting shaft, blades, water pipe 2 and spray pipe, and also realize the automatic circulation and spraying of water, thereby improving the utilization rate of water resources. At the same time, the stirring rod can also use the power of the connecting shaft to cooperate with the rotation of the spray pipe, so that the water mist sprayed by the rotating spray pipe can more comprehensively cover the internal space of the tower body, avoiding the spray blind spots that may exist in traditional fixed sprays, and further improving the purification efficiency and effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a chemical production safety waste gas purification tower proposed by the utility model;

[0014] Figure 2 This is a cross-sectional structural diagram of the connection between the tower body and the water tank of a chemical production safety waste gas purification tower proposed by the utility model;

[0015] Figure 3 This is a schematic diagram of the shell cross-section structure of a chemical production safety waste gas purification tower proposed by the utility model;

[0016] Figure 4 This is a schematic diagram of the connection structure between the stirring rod and the water tank of a chemical production safety waste gas purification tower proposed by the utility model;

[0017] Figure 5 For this utility model Figure 4 Schematic diagram of the locally enlarged structure at point A in the middle.

[0018] In the figure: 1. Tower body; 11. Smoke inlet pipe; 12. Filling layer; 13. Smoke outlet pipe; 14. L-shaped support rod; 15. Base plate; 2. Water tank; 21. Water pipe 1; 22. Shell; 23. Connecting shaft; 24. Blade; 25. Water pipe 2; 26. Drain pipe; 27. Spray pipe; 28. Stirring rod; 29. Water inlet pipe; 210. Filter; 211. Arc support plate; 212. Support rod; 213. Bevel gear 1; 214. Bevel gear 2. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0020] It should be understood that terms such as “having”, “including” and “comprising” used herein do not preclude the existence or addition of one or more other elements or combinations thereof.

[0021] In the description of the present invention, the terms "horizontal", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0022] Example 1: Reference Figure 1 and Figure 2 A chemical production safety waste gas purification tower includes a tower body 1, on which are fixed a plurality of L-shaped support rods 14 distributed in a circumference, and a base plate 15 is fixed between the bottom ends of each L-shaped support rod 14. The cooperation between the L-shaped support rods 14 and the base plate 15 can provide stable support for the tower body 1, thereby improving the stability of the tower body 1 during use.

[0023] Reference Figure 1-Figure 5The left side of the tower body 1 near the bottom is connected to a smoke inlet pipe 11 connected to the external flue gas duct. A filler layer 12 with porous structure characteristics is provided between the inner walls of the tower body 1, which is used to produce more liquid film or air film when the exhaust gas passes through, thereby significantly increasing the contact area between the exhaust gas and the spray water. This increased contact area is conducive to a more complete interaction between the harmful substances in the exhaust gas and the spray water, thereby improving the purification effect. The top of the tower body 1 is connected to a smoke outlet pipe 13, and the bottom of the tower body 1 is connected to a water tank 2. The inner wall diameter of the water tank 2 gradually decreases from top to bottom. The left side of the water tank 2 is connected to a water inlet pipe 29 with a control valve. Before the smoke enters the tower body 1 for spraying, the control valve on the surface of the water inlet pipe 29 can be opened to make the water inlet pipe 29 and the external The liquid storage device is connected, and an appropriate amount of water can be added into the water tank 2 in advance for spraying. The amount of water added to the water tank 2 should not exceed the top port position of the water tank 2. The right side of the water tank 2 is connected with a water pipe 21, and the other end of the water pipe 21 is connected with a circular shell 22. An arc-shaped support plate 211 is fixed on the shell 22, and a pair of support rods 212 connected to the top of the base plate 15 are fixed on the arc-shaped support plate 211. A connecting shaft 23 is rotatably provided on the shell 22, and a plurality of circular blades 24 are fixed on the connecting shaft 23 that fit the inner wall of the shell 22. The lower surface of the shell 22 is connected with a water pipe 25 with a control valve, and the other end of the water pipe 25 is connected with a spray pipe 27 located above the packing layer 12 through a bearing.

[0024] In the above technical solution, when the smoke enters the tower body 1 from the smoke inlet pipe 11 for spraying, the servo motor installed on the right side of the shell 22 is started to drive the multiple blades 24 on the connecting shaft 23 to rotate along the inner wall of the shell 22, so that the water pipe 1 21 connected to the right side of the water tank 2 transports the water pre-stored in the water tank 2 to the inside of the shell 22 through the water pipe 1 21. As the connecting shaft 23 rotates, the multiple blades 24 fixed on the connecting shaft 23 rotate along the inner wall of the shell 22, and the water entering the shell 22 is then discharged through the water pipe 2 25 with the control valve opened. The water enters the spray pipe 27, and the spray pipe 27 evenly sprays the water in the form of fine mist or small droplets, thereby fully contacting the flue gas entering the tower body 1 from the smoke inlet pipe 11, forming a wide gas-liquid interface. During this gas-liquid contact process, harmful components in the flue gas, including particulate matter and gaseous pollutants, are effectively captured and dissolved by the spray water. This design not only cleverly utilizes the fluidity of water and the rotational power of the blades 24 to achieve automatic circulation and spraying of water, but also ensures the uniformity and continuity of spraying, thereby maximizing the utilization rate of water resources.

[0025] Reference Figure 1 、 Figure 2 and Figure 5It should be noted that one end of the water pipe 1 21 located inside the water tank 2 is arranged to be inclined downward, and a filter screen 210 is provided at the port arranged to be inclined downward, so as to prevent impurities, particulate matter, etc. in the water tank 2 from entering the water pipe 1 21 and affecting the spraying effect and the normal operation of the equipment. At the same time, in order to facilitate the discharge of water inside the water tank 2, the water pipe 2 25 is connected to a drain pipe 26 with a control valve. When in use, the control valve on the water pipe 25 is closed and the control valve on the drain pipe 26 is opened. In this way, when the connecting shaft 23 drives the blade 24 to rotate, the water pipe 1 21 can transmit the water in the water tank 2 through the shell 22 and the water pipe 2 25, and discharge it from the drain pipe 26 to the external collection device.

[0026] It should be noted that, during actual use, the tower body 1 may further be provided with sealed doors installed on the water tank 2 and the tower body 1 to facilitate subsequent maintenance of the interior of the tower body 1 and the water tank 2 .

[0027] Example 2: Based on the above example, refer to Figure 1 、 Figure 2 and Figure 5 , the spray pipe 27 is fixed with a stirring rod 28 which is rotatably arranged on the water tank 2 and is linked to the connecting shaft 23. The stirring rod 28 is fixed with a bevel gear 1 213 located below the bottom of the water tank 2. The bevel gear 1 213 is connected to a matching bevel gear 214. The bevel gear 214 is fixed to one end on the left side of the connecting shaft 23. When the connecting shaft 23 rotates, the bevel gear 214 connected to the end of the connecting shaft 23 will drive the stirring rod 28 on the bevel gear 1 213 to rotate on the water tank 2. The advantage of this design is that, on the one hand, through the rotation of the stirring rod 28, The spray tube 27 can be further driven to spray in a rotating manner, so that the space inside the tower body 1 can be more comprehensively covered, so that the contact between the water mist and the flue gas is more sufficient and uniform, thereby increasing the contact area between water and flue gas and significantly improving the purification effect. On the other hand, this helps to prevent excessive accumulation of impurities and particulate matter at the filter 210. Under long-term operation, if the filter 210 is blocked, it will affect the smoothness of the water flow and the spraying effect. Through the stirring of the stirring rod 28, the impurities can be washed away from the surface of the filter 210 in time to maintain the patency of the filter 210.

[0028] 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 chemical production safety waste gas purification tower, comprising: A tower body (1), wherein the left side of the tower body (1) near the bottom is connected to a smoke inlet pipe (11), a packing layer (12) is provided between the inner walls of the tower body (1), and the top of the tower body (1) is connected to a smoke outlet pipe (13), characterized in that: The bottom of the tower body (1) is connected to a water tank (2), the right side of the water tank (2) is connected to a water pipe (21), the other end of the water pipe (21) is connected to a circular shell (22), a connecting shaft (23) is rotatably provided on the shell (22), a plurality of blades (24) in a circular shape and in contact with the inner wall of the shell (22) are fixed on the connecting shaft (23), the lower surface of the shell (22) is connected to a water pipe (25) with a control valve, the water pipe (25) is connected to a drain pipe (26) with a control valve, the other end of the water pipe (25) is connected to a spray pipe (27) located above the packing layer (12) through a bearing, and a stirring rod (28) is fixed on the spray pipe (27) which is rotatably provided on the water tank (2) and is linked to the connecting shaft (23).

2. A chemical production safety waste gas purification tower according to claim 1, characterized in that: The diameter of the smoke outlet pipe (13) gradually decreases from the bottom end to the top end.

3. A chemical production safety waste gas purification tower according to claim 1, characterized in that: The inner wall diameter of the water tank (2) gradually decreases from top to bottom, and the left side of the water tank (2) is connected to a water inlet pipe (29) with a control valve.

4. A chemical production safety waste gas purification tower according to claim 1, characterized in that: One end of the water pipe (21) located inside the water tank (2) is arranged to be tilted downward, and a filter screen (210) is provided at the port arranged to be tilted downward.

5. A chemical production safety waste gas purification tower according to claim 1, characterized in that: A plurality of L-shaped support rods (14) distributed in a circumference are fixed on the tower body (1), and a base plate (15) is fixed between the bottom ends of each of the L-shaped support rods (14).

6. A chemical production safety waste gas purification tower according to claim 5, characterized in that: An arc-shaped support plate (211) is fixed on the shell (22), and a pair of support rods (212) connected to the top of the base plate (15) are fixed on the arc-shaped support plate (211).

7. A chemical production safety waste gas purification tower according to claim 1, characterized in that: A bevel gear 1 (213) located below the bottom of the water tank (2) is fixed on the stirring rod (28); a matching bevel gear 2 (214) is connected to the bevel gear 1 (213); and the bevel gear 2 (214) is fixed to one end on the left side of the connecting shaft (23).

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