PP spray tower

Abstract

The utility model discloses a PP (polypropylene) spray tower which comprises a base, the top of the base is fixedly connected with a tower body, the inside of the tower body is fixedly connected with vertically arranged grid plates, the tops of the grid plates are all provided with a filling reactant layer, the top of the base is fixedly connected with a circulating water tank, and the circulating water tank is fixedly connected with the top of the base. A pressure sensing mechanism is mounted in the circulating water tank, and a spraying mechanism is fixedly mounted between the left side of the circulating water tank and the tower body. According to the utility model, along with the increase of circulation times and the increase of solid particle content in the spraying liquid, continuous flowing pressure is generated on the pressure sensing mechanism during circulation, the spraying liquid is compressed until the pressure sensing mechanism triggers sensing, and an alarm is given to the external control end, so that a worker is reminded to replace the spraying liquid; therefore, the device has the advantages of detecting the solid concentration content in the spraying liquid in real time, giving an alarm for reminding when the solid concentration content reaches a set value, and being more accurate and efficient.

Description

Technical Field

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

[0002] Spray towers are used as a type of waste gas treatment equipment for environmental protection. Based on their operating principles, they are categorized as circulating water spray towers, alkali spray towers, and acid spray towers (also known as pickling towers). Based on the tower material, they are categorized as fiberglass spray towers, polypropylene spray towers, and stainless steel spray towers. The appropriate spray material and spray process are selected based on the nature of the waste gas.

[0003] The working principle of the PP spray tower is to contact and mix pollutants in the exhaust gas with water or other liquids, and remove pollutants through absorption, adsorption and chemical reaction. The exhaust gas enters from the bottom of the tower and contacts with the spray liquid through the packing layer. After a series of physical and chemical reactions, the pollutants are removed and the purified gas is discharged from the top of the tower. At the same time, the spray liquid is circulated in the tower and needs to be replaced or treated after a certain period of operation.

[0004] However, the current PP spray tower's spray liquid circulation times are generally determined by time and experience. Since the exhaust gas also contains solid particulate waste, it enters the circulating liquid during the spraying process. As the number of cycles increases, the solid concentration in the spray liquid increases, which will seriously affect the subsequent spray adsorption effect. There is a lack of real-time detection means for the solid concentration content during the spray liquid circulation process. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a PP spray tower to solve the background technical problems.

[0006] In order to achieve the above-mentioned purpose, the present utility model adopts the following technical solutions.

[0007] A PP spray tower comprises a base, the top of the base is fixedly connected to a tower body, the interior of the tower body is fixedly connected to vertically arranged grid plates, the tops of the grid plates are each provided with a layer of filled reactants, the top of the base is fixedly connected to a circulating water tank, a pressure sensing mechanism is installed inside the circulating water tank, a spray mechanism is fixedly installed between the left side of the circulating water tank and the tower body, an exhaust gas inlet pipe is fixedly connected to the left side of the tower body, and a negative pressure mechanism is installed between the base and the tower body.

[0008] As a further description of the above technical solution: the pressure sensing mechanism includes a filter plate, two elastic parts, a contact block and a pressure sensing block. The outer side of the filter plate is slidably connected to the interior of the circulating water tank. The two elastic parts are installed on the filter plate. The top ends of the two elastic parts extend to the top of the circulating water tank. The bottom of the contact block is fixedly connected to the filter plate. The pressure sensing block is fixedly installed to the top of the inner side of the circulating water tank and corresponds to the contact block at the bottom.

[0009] As a further description of the above technical solution: the elastic member includes a vertical rod and a spring, the bottom end of the vertical rod is fixedly connected to the filter plate, the top end of the vertical rod passes through the top of the circulating water tank and is connected with a sliding connection, the spring is sleeved on the outside of the vertical rod, the top end of the spring is fixedly connected to the vertical rod, and the bottom end of the spring is fixedly connected to the circulating water tank.

[0010] As a further description of the above technical solution: the spray mechanism includes a circulating water pump, a diversion pipe, three rotating joints and three rotating nozzle groups. The circulating water pump is fixedly installed to the left side of the circulating water tank. The input end of the circulating water pump is connected to the inside of the circulating water tank through a pipe. The output end of the circulating water pump is fixedly connected to the bottom end of the diversion pipe. The three horizontal ends of the diversion pipe are all plugged and fixed to the inside of the tower body and arranged at intervals with the grid plate. The three horizontal ends of the diversion pipe are respectively fixedly connected to the ports of the three rotating joints. The tops of the three rotating nozzle groups are all rotatably connected to the bottom of the rotating joint, and the top of the rotating joint is fixedly connected to the top grid plate.

[0011] As a further description of the above technical solution: the rotating sprinkler head group includes a T-shaped tube and two groups of sprinkler heads. The top end of the T-shaped tube is rotatably connected to a rotating joint. The two groups of sprinkler heads are symmetrically distributed around the center of the T-shaped tube. The top-view cross-section of the two groups of sprinkler heads is inclined clockwise.

[0012] As a further description of the above technical solution: the negative pressure mechanism includes an axial flow exhaust fan and an exhaust pipe, the bottom of the axial flow exhaust fan is fixedly connected to the base, and the input end of the axial flow exhaust fan is connected and fixed to the interior of the tower body through the exhaust pipe.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] This solution uses a pressure sensing mechanism to achieve real-time detection of the solid content of the spray liquid circulating inside the circulating water tank, thereby enabling the device to detect the solid concentration content inside the spray liquid in real time and issue an alarm when the set value is reached, which is more accurate and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0016] Figure 2 for Figure 1 A magnified schematic diagram of the structure of part A in the middle;

[0017] Figure 3 It is a schematic diagram of a partial bottom-up structure of the present invention;

[0018] Figure 4 It is a partial three-dimensional structural diagram of the utility model.

[0019] Description of the numbers in the figure:

[0020] 1. Base; 2. Tower body; 3. Grid plate; 4. Filling reactant layer; 5. Circulating water tank; 6. Pressure sensing mechanism; 61. Filter plate; 62. Elastic piece; 621. Vertical rod; 622. Spring; 63. Contact block; 64. Pressure sensing block; 7. Spraying mechanism; 71. Circulating water pump; 72. Diverter pipe; 73. Rotating joint; 74. Rotating nozzle group; 741. T-shaped pipe; 742. Spraying head; 8. Exhaust gas inlet pipe; 9. Negative pressure mechanism; 91. Axial flow exhaust fan; 92. Exhaust pipe. DETAILED DESCRIPTION

[0021] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0022] The technical solutions specifically implemented in this utility model are as follows:

[0023] See also Figures 1 to 4 In the utility model, a PP spray tower includes a base 1, the top of the base 1 is fixedly connected to a tower body 2, the interior of the tower body 2 is fixedly connected to a vertically arranged grid plate 3, the top of the grid plate 3 is provided with a filling reactant layer 4, the top of the base 1 is fixedly connected to a circulating water tank 5, the interior of the circulating water tank 5 is installed with a pressure sensing mechanism 6, a spray mechanism 7 is fixedly installed between the left side of the circulating water tank 5 and the tower body 2, the left side of the tower body 2 is fixedly connected to an exhaust gas inlet pipe 8, and a negative pressure mechanism 9 is installed between the base 1 and the tower body 2.

[0024] In the present invention, the base 1 is used as the main body of the device. When in use, the negative pressure mechanism 9 is started to draw the inside of the tower body 2 into a negative pressure, and the exhaust gas inlet pipe 8 is used to introduce the exhaust gas into the inside of the tower body 2, so that it is drawn from the bottom upward, passes through the filling reactant layer 4 on the multi-layer grid plate 3 to react, and the spray mechanism 7 is started to draw out the spray liquid inside the circulating water tank 5 and flush the filling reactant layer 4, and realize the purification of the exhaust gas flowing upward, and the spray liquid flows downward to the bottom of the tower body 2 and flows back into the inside of the circulating water tank 5, and the purified gas is drawn out and discharged by the negative pressure mechanism 9, and as the number of cycles increases, the spray liquid inside As the solid particle content increases, continuous flow pressure is generated on the pressure sensing mechanism 6 during circulation, compressing it until the pressure sensing mechanism 6 triggers the induction, and an alarm is issued to the external control end to remind the staff to replace the spray liquid, thereby realizing that the device has the advantages of real-time detection of the solid concentration content inside the spray liquid and issuing an alarm when the set value is reached, which is more accurate and efficient, and solves the problem in the prior art that the circulating liquid enters the spraying process, and as the number of cycles increases, the solid concentration in the spray liquid increases, which will seriously affect the subsequent spray adsorption effect, and lacks a real-time detection method for the solid concentration content during the spray liquid circulation process.

[0025] See also Figure 2 and Figure 4 , wherein: the pressure sensing mechanism 6 includes a filter plate 61, two elastic members 62, a contact block 63 and a pressure sensing block 64, the outer side of the filter plate 61 is slidably connected to the inside of the circulating water tank 5, the two elastic members 62 are both installed on the filter plate 61, the top ends of the two elastic members 62 extend to the top of the circulating water tank 5, the bottom of the contact block 63 is fixedly connected to the filter plate 61, and the pressure sensing block 64 is fixedly installed to the top of the inner side of the circulating water tank 5 and corresponds to the contact block 63 at the bottom.

[0026] In the present invention, the circulating spray liquid is filtered by the filter plate 61, so that the solid particles on the filter plate 61 are filtered and intercepted. As the number of solid particles increases, the flow pressure of the spray liquid increases, gradually pushing the filter plate 61 upward and compressing the elastic member 62 to move the contact block 63 upward. When the contact block 63 contacts the pressure sensing block 64, an alarm is issued to remind you to replace it to avoid affecting the spray reaction effect.

[0027] See also Figure 1 and Figure 4 , wherein: the elastic member 62 includes a vertical rod 621 and a spring 622, the bottom end of the vertical rod 621 is fixedly connected to the filter plate 61, the top end of the vertical rod 621 passes through the top of the circulating water tank 5 and is slidably connected, the spring 622 is sleeved on the outside of the vertical rod 621, the top end of the spring 622 is fixedly connected to the vertical rod 621, and the bottom end of the spring 622 is fixedly connected to the circulating water tank 5.

[0028] In the present invention, the filter plate 61 is guided and pressure balanced by the vertical rod 621 and the spring 622 .

[0029] See also Figure 2 and Figure 3 , wherein: the spray mechanism 7 includes a circulating water pump 71, a diversion pipe 72, three rotary joints 73 and three rotating nozzle groups 74, the circulating water pump 71 is fixedly installed to the left side of the circulating water tank 5, the input end of the circulating water pump 71 is communicated with the inside of the circulating water tank 5 through a pipeline, the output end of the circulating water pump 71 is fixedly connected to the bottom end of the diversion pipe 72, the three horizontal ends of the diversion pipe 72 are all plugged and fixed to the inside of the tower body 2 and arranged at intervals with the grid plate 3, the three horizontal ends of the diversion pipe 72 are respectively fixedly connected to the ports of the three rotary joints 73, the tops of the three rotating nozzle groups 74 are all rotatably connected to the bottom of the rotary joint 73, and the top of the rotary joint 73 is fixedly connected to the top grid plate 3.

[0030] In the present invention, the circulating water pump 71 is started to extract the spray liquid inside the circulating water tank 5, and input it into the three rotating joints 73 and three rotating nozzle groups 74 through the diversion pipe 72, and spray each layer of the filled reactant layer 4 respectively so that the exhaust gas reacts with it efficiently.

[0031] See also Figure 2 and Figure 3 , wherein: the rotating nozzle group 74 includes a T-shaped tube 741 and two groups of spray heads 742, the top of the T-shaped tube 741 is rotatably connected to the rotating joint 73, the two groups of spray heads 742 are symmetrically distributed around the center of the T-shaped tube 741, and the two groups of spray heads 742 are inclined clockwise when viewed from above.

[0032] In the present invention, the spray liquid is sprayed out through the two groups of spray heads 742, and the T-shaped tube 741 is pushed to rotate counterclockwise, so that the spray liquid can efficiently cover the exhaust gas and the reaction is more sufficient.

[0033] See also Figure 1 , wherein: the negative pressure mechanism 9 includes an axial flow exhaust fan 91 and an exhaust pipe 92, the bottom of the axial flow exhaust fan 91 is fixedly connected to the base 1, and the input end of the axial flow exhaust fan 91 is connected and fixed to the interior of the tower body 2 through the exhaust pipe 92.

[0034] In the present invention, the axial flow exhaust fan 91 is started to exhaust the interior of the tower body 2 into a negative pressure through the exhaust pipe 92, thereby achieving smooth flow of exhaust gas.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A PP spray tower, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to the tower body (2), the interior of the tower body (2) is fixedly connected to vertically arranged grid plates (3), the tops of the grid plates (3) are each provided with a filling reactant layer (4), the top of the base (1) is fixedly connected to a circulating water tank (5), the interior of the circulating water tank (5) is provided with a pressure sensing mechanism (6), a spray mechanism (7) is fixedly installed between the left side of the circulating water tank (5) and the tower body (2), the left side of the tower body (2) is fixedly connected to an exhaust gas intake pipe (8), and a negative pressure mechanism (9) is installed between the base (1) and the tower body (2); The pressure sensing mechanism (6) comprises a filter plate (61), two elastic members (62), a contact block (63) and a pressure sensing block (64); the outer side of the filter plate (61) is slidably connected to the inside of the circulating water tank (5); the two elastic members (62) are mounted on the filter plate (61); the top ends of the two elastic members (62) extend to the top of the circulating water tank (5); the bottom of the contact block (63) is fixedly connected to the filter plate (61); and the pressure sensing block (64) is fixedly mounted to the top of the inner side of the circulating water tank (5) and corresponds to the contact block (63) at the bottom.

2. The PP spray tower according to claim 1, characterized in that The elastic member (62) comprises a vertical rod (621) and a spring (622); the bottom end of the vertical rod (621) is fixedly connected to the filter plate (61); the top end of the vertical rod (621) passes through the top of the circulating water tank (5) and is slidably connected thereto; the spring (622) is sleeved on the outside of the vertical rod (621); the top end of the spring (622) is fixedly connected to the vertical rod (621); and the bottom end of the spring (622) is fixedly connected to the circulating water tank (5).

3. The PP spray tower according to claim 1, characterized in that, The spray mechanism (7) comprises a circulating water pump (71), a diversion pipe (72), three rotating joints (73) and three rotating nozzle groups (74). The circulating water pump (71) is fixedly installed on the left side of the circulating water tank (5). The input end of the circulating water pump (71) is communicated with the inside of the circulating water tank (5) through a pipeline. The output end of the circulating water pump (71) is fixedly connected to the bottom end of the diversion pipe (72). The three horizontal ends of the diversion pipe (72) are all plugged and fixed to the inside of the tower body (2) and are arranged at intervals with the grid plate (3). The three horizontal ends of the diversion pipe (72) are respectively fixedly connected to the ports of the three rotating joints (73). The tops of the three rotating nozzle groups (74) are all rotatably connected to the bottom of the rotating joint (73). The top of the rotating joint (73) is fixedly connected to the grid plate (3) at the top.

4. The PP spray tower according to claim 3, characterized in that The rotating spray head group (74) comprises a T-shaped tube (741) and two groups of spray heads (742). The top end of the T-shaped tube (741) is rotatably connected to the rotating joint (73). The two groups of spray heads (742) are symmetrically distributed around the center of the T-shaped tube (741). The two groups of spray heads (742) are inclined in a clockwise direction when viewed from above.

5. The PP spray tower according to claim 1, characterized in that, The negative pressure mechanism (9) comprises an axial flow exhaust fan (91) and an exhaust pipe (92); the bottom of the axial flow exhaust fan (91) is fixedly connected to the base (1); and the input end of the axial flow exhaust fan (91) is fixedly connected to the interior of the tower body (2) through the exhaust pipe (92).

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