Waste gas removal structure of polypropylene spray tower

Abstract

The waste gas removal structure comprises a tower body, a filter plate, a flow limiting hopper, a primary adsorption plate and a secondary adsorption plate, the lower end of one side of the tower body and the upper end of the tower body are respectively provided with a gas inlet and a gas outlet, and the filter plate, the flow limiting hopper, the primary adsorption plate and the secondary adsorption plate are sequentially connected and arranged in the tower body from bottom to top. The two filter plates are arranged on the upper side and the lower side of the air inlet respectively, a cleaning structure is connected and arranged between the filter plates in the tower body, a liquid inlet hopper is connected and arranged between the filter plates and the flow limiting hopper on the side wall of the tower body, the primary adsorption plate comprises a plurality of limiting frames and adsorption balls, and the limiting frames form a square frame with a transverse stop lever. And the adsorption ball is rotationally arranged between the stop levers. The waste gas treatment device has the advantages that waste gas can be quickly and fully cooled and reacted, and the safety is high; a multi-stage waste gas purification structure is not easy to block, and the purification effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of spray towers, in particular to a waste gas removal structure of a polypropylene spray tower. Background Art

[0002] Polypropylene spray tower is a commonly used waste gas treatment equipment that can be used to remove pollutants from industrial waste gas.

[0003] The existing polypropylene spray tower is usually composed of a tower body made of polypropylene material, a packing plate, a spray system, and an outlet pipe. When the polypropylene spray tower is working, the treated liquid will be evenly sprayed onto the packing plate through the spray system, and the waste gas will contact and react with the droplets when passing through the packing plate. During the contact and reaction process, the pollutants will be dissolved, absorbed or chemically reacted, thereby achieving the purpose of purifying the waste gas. After being purified, the treated waste gas is discharged into the atmosphere through the outlet pipe.

[0004] In actual use, polypropylene may soften, deform or dissolve under high temperature and certain chemical substances. Therefore, the polypropylene spray tower cannot be exposed to high-temperature exhaust gas for a long time and its use is limited. For high-temperature exhaust gas, the cooling effect of spraying alone is slow and it is easy to damage the spray tower. Moreover, the contact between the spray liquid and the exhaust gas is limited and full reaction cannot be guaranteed. In addition, the exhaust gas will produce solid matter during the reaction. Directly using packing plates to treat the exhaust gas can easily cause blockage of the packing plates, affecting the discharge of the exhaust gas. In severe cases, it will cause the pressure in the tower body to increase, which is dangerous. Moreover, the blockage of the packing plates will also affect the purification effect of the exhaust gas. Utility Model Content

[0005] In order to solve the above-mentioned problems, the utility model proposes a polypropylene spray tower waste gas removal structure which can quickly cool and react the waste gas, has high safety, has a multi-stage waste gas purification structure, is not easy to be blocked, and has good purification effect.

[0006] In order to solve the above-mentioned technical problems, the technical solution proposed by the utility model is: a polypropylene spray tower waste gas removal structure, including a tower body, a filter plate, a flow limiting bucket, a primary adsorption plate and a secondary adsorption plate, the lower end of one side of the tower body and the upper end of the tower body are respectively provided with an air inlet and an exhaust port, the filter plate, the flow limiting bucket, the primary adsorption plate and the secondary adsorption plate are sequentially connected and arranged in the tower body from bottom to top, the filter plates are two and are respectively arranged on the upper and lower sides of the air inlet, a cleaning structure is connected between the filter plates in the tower body, a liquid inlet bucket is connected between the filter plate and the flow limiting bucket on the side wall of the tower body, the primary adsorption plate includes a plurality of limit frames and adsorption balls, the limit frames form a square frame with a transverse baffle, and the adsorption balls are rotatably arranged between the baffles.

[0007] Furthermore, a one-way valve is provided at the air inlet.

[0008] Furthermore, a drain outlet is provided at the lower end of the tower body, and a valve is provided at the drain outlet.

[0009] Furthermore, the cleaning structure includes a screw rod rotatably arranged in the tower body, one end of the screw rod is connected to a motor, a ball nut is provided on the screw rod, and cleaning brushes are symmetrically connected on the upper and lower sides of the ball nut through a connecting rod, and the two cleaning brushes are respectively in contact with two adsorption plates, and a limit rod is connected to the tower body at the front and rear sides of the connecting rod, and the connecting rod is slidably arranged between the two limit rods.

[0010] Furthermore, the secondary adsorption plate is an activated carbon plate.

[0011] Furthermore, a sealing door is provided on the side wall of the tower body to match the filter plate, the primary adsorption plate and the secondary adsorption plate.

[0012] Furthermore, the two sides of the limiting frame are provided with fixing plates and grooves that cooperate with each other, and the adjacent limiting frames are connected and fixed by screws that penetrate the grooves of the fixing plates.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] The exhaust gas can be quickly cooled and reacted fully with high safety: the air inlet is set close to the lower end, so that the exhaust gas can directly enter the cooled treatment liquid after entering the tower body, achieving rapid cooling. As the exhaust gas flows in the treatment liquid, it can be fully cooled and reacted. In addition, the flow limiting bucket can slow down the speed of the exhaust gas flowing upward, further increasing the reaction time between the exhaust gas and the treatment liquid, achieving full cooling and reaction, which is beneficial to ensure the safety of the tower body.

[0015] Multi-stage exhaust gas purification structure, not easy to clog, good purification effect: through the layered setting of filter plate, primary adsorption plate and secondary adsorption plate, the solid impurities generated after the exhaust gas reaction can be filtered and purified step by step for many times, which can effectively avoid the clogging of a single purification structure, and the cleaning structure can quickly clean the dirt on the filter plate, directly avoid its clogging, and thus ensure a good purification effect. The primary adsorption plate adopts a combination of a limit frame and an adsorption ball, which can not only increase the contact between the exhaust gas and the primary adsorption plate, but also reduce the exhaust gas flow rate and improve the adsorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the primary adsorption plate part of the utility model;

[0018] Figure 3 It is a side view structural diagram of the cleaning structure part of the utility model;

[0019] As shown in the figure: 1. Tower body; 2. Filter plate; 3. Flow limiting bucket; 4. Primary adsorption plate; 5. Secondary adsorption plate; 6. Air inlet; 7. Exhaust port; 8. Liquid inlet bucket; 9. Limiting frame; 10. Adsorption ball; 11. Drain port; 12. Screw; 13. Motor; 14. Ball nut; 15. Connecting rod; 16. Cleaning brush; 17. Limiting rod; 18. Sealing door; 19. Fixing plate; 20. Screw. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] Combined with Figure 1 A polypropylene spray tower waste gas removal structure includes a tower body 1, a filter plate 2, a flow limiting bucket 3, a primary adsorption plate 4 and a secondary adsorption plate 5. The lower end of one side of the tower body 1 and the upper end of the tower body 1 are respectively provided with an air inlet 6 and an exhaust port 7. A one-way valve is provided at the air inlet 6, which can effectively prevent the treated liquid in the tower body from flowing out from the air inlet 6 to avoid pollution and waste.

[0022] Combined with Figure 1 The lower end of the tower body 1 is provided with a drain port 11, and a valve is provided at the drain port 11 to facilitate the discharge of the treated liquid.

[0023] Combined with Figure 1 , Attachment Figure 3 The filter plate 2, the flow limiting bucket 3, the primary adsorption plate 4 and the secondary adsorption plate 5 are sequentially connected and arranged in the tower body 1 from bottom to top. There are two filter plates 2 and they are respectively arranged on the upper and lower sides of the air inlet 6. A cleaning structure is connected between the filter plates 2 in the tower body 1. The cleaning structure includes a screw rod 12 rotatably arranged in the tower body 1, and a motor 13 is connected to one end of the screw rod 12. A ball nut 14 is provided on the screw rod 12. Cleaning brushes 16 are symmetrically connected on the upper and lower sides of the ball nut 14 through a connecting rod 15. The two cleaning brushes 16 are in contact with the two filter plates 2 respectively. A limit rod 17 is connected to the front and rear sides of the connecting rod 15 in the tower body 1, and the connecting rod 15 is slidably arranged between the two limit rods 17. The two filter plates 2 can retain solid impurities generated by the reaction of exhaust gas and treatment liquid between the filter plates 2, which is convenient for centralized cleaning. The filter plates 2 can be cleaned by controlling the operation of the motor 13. The operation is simple and convenient, and it can also effectively prevent the filter plates 2 from being blocked during operation, thereby affecting the purification effect of the exhaust gas.

[0024] Combined with Figure 1 , Attachment Figure 2On the side wall of the tower body 1, a liquid inlet hopper 8 is connected between the filter plate 2 and the flow limiting hopper 3. The primary adsorption plate 4 includes a plurality of limit frames 9 and adsorption balls 10. The limit frames 9 form a square frame with a transverse barrier rod, and the adsorption balls 10 are rotatably arranged between the barrier rods. The limit frames 9 are provided with mutually matching fixing plates 19 and grooves on both sides, and the adjacent limit frames 9 are connected and fixed by screws 20 penetrating the grooves of the fixing plates 19. The limit frames 9 are connected by screws 20, which is convenient for disassembly, cleaning or replacement of the adsorption balls 10, and ensures a good exhaust gas treatment effect.

[0025] Combined with Figure 1 The secondary adsorption plate 5 is an activated carbon plate, which has a good adsorption and purification effect.

[0026] Combined with Figure 1 The side wall of the tower body 1 is provided with a sealing door 18 to match the filter plate 2, the primary adsorption plate 4 and the secondary adsorption plate 5. The sealing door 18 is convenient for cleaning the filter plate 2, the primary adsorption plate 4 and the secondary adsorption plate 5.

[0027] The specific implementation mode of the utility model is as follows: the device is connected to an external power supply, and an appropriate amount of treatment liquid is injected into the tower body 1 through the liquid inlet hopper 8, so that the waste gas to be treated enters the tower body 1 from the air inlet 6, and the waste gas directly enters the treatment liquid for reaction. The solid precipitation produced by the reaction will be isolated between the two filter plates 2. The motor 13 is turned on regularly, and the motor 13 drives the screw rod 12 to rotate, so that the ball nut 14 drives the cleaning brush 16 to move back and forth to clean the filter plate 2. At the same time, the connecting rod 15 will also promote the full reaction of the waste gas and the treatment liquid. The waste gas after the reaction flows upward through the filter The exhaust gas enters the primary adsorption plate 4 after the plate 2 and the flow limiting bucket 3. The exhaust gas contacts the adsorption ball 10 and pushes the adsorption ball 10 to rotate. The adsorption ball 10 can perform preliminary adsorption treatment on the exhaust gas. The treated exhaust gas continues to rise and enters the secondary adsorption plate 5 to achieve secondary cleaning and adsorption, and is finally discharged through the exhaust port 7. The valve and the sealing door 18 are opened regularly to allow the waste liquid in the tower body 1 to flow out and clean the filter plate 2, the primary adsorption plate 4 and the secondary adsorption plate 5. When cleaning the primary adsorption plate 4, the screws 20 can be removed, and then the limiting frame 9 can be disassembled, and the adsorption ball 10 can be removed for cleaning or replacement.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A polypropylene spray tower exhaust gas removal structure, comprising a tower body (1), a filter plate (2), a flow limiting bucket (3), a primary adsorption plate (4) and a secondary adsorption plate (5), characterized in that: An air inlet (6) and an air outlet (7) are respectively provided at the lower end of one side of the tower body (1) and the upper end of the tower body (1); the filter plate (2), the flow limiting bucket (3), the primary adsorption plate (4) and the secondary adsorption plate (5) are sequentially connected and arranged in the tower body (1) from bottom to top; the filter plates (2) are two and are respectively arranged at the upper and lower sides of the air inlet (6); a cleaning structure is connected between the filter plates (2) in the tower body (1); a liquid inlet bucket (8) is connected between the filter plate (2) and the flow limiting bucket (3) on the side wall of the tower body (1); the primary adsorption plate (4) comprises a plurality of limit frames (9) and adsorption balls (10); the limit frames (9) form a square frame with transverse blocking rods; the adsorption balls (10) are rotatably arranged between the blocking rods.

2. A polypropylene spray tower waste gas removal structure according to claim 1, characterized in that: A one-way valve is provided at the air inlet (6).

3. A polypropylene spray tower waste gas removal structure according to claim 1, characterized in that: A drainage outlet (11) is provided at the lower end of the tower body (1), and a valve is provided at the drainage outlet (11).

4. A polypropylene spray tower waste gas removal structure according to claim 1, characterized in that: The cleaning structure comprises a screw rod (12) rotatably arranged in a tower body (1), one end of the screw rod (12) being connected to a motor (13), a ball nut (14) being arranged on the screw rod (12), cleaning brushes (16) being symmetrically connected at the upper and lower sides of the ball nut (14) via a connecting rod (15), the two cleaning brushes (16) being in contact with two filter plates (2) respectively, and limiting rods (17) being connected at the front and rear sides of the connecting rod (15) in the tower body (1), the connecting rod (15) being slidably arranged between the two limiting rods (17).

5. A polypropylene spray tower waste gas removal structure according to claim 1, characterized in that: The secondary adsorption plate (5) is an activated carbon plate.

6. A polypropylene spray tower waste gas removal structure according to claim 1, characterized in that: A sealing door (18) is provided on the side wall of the tower body (1) to match the filter plate (2), the primary adsorption plate (4) and the secondary adsorption plate (5).

7. A polypropylene spray tower waste gas removal structure according to claim 1, characterized in that: The two sides of the limiting frame (9) are provided with fixing plates (19) and grooves that cooperate with each other, and the adjacent limiting frames (9) are connected and fixed by screws (20) that penetrate the grooves of the fixing plates (19).

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