An emulsifier exhaust gas adsorption treatment device

Abstract

The utility model discloses an emulsifier tail gas adsorption processing device, including the box, the feed inlet of box is provided with the filter bin, and the top of filter bin is provided with the air inlet pipe, be provided with the filter screen in the box, filter screen side is provided with adsorption cover, adsorption cover side is provided with the exhaust fan, the other end of exhaust fan is connected with the gas collecting pipe, the other end of gas collecting pipe is inserted in the liquid in the inner cylinder body, and is provided with the check valve on the gas collecting pipe, be provided with the stirring mechanism in the inner cylinder body, the inner cylinder body top is inserted with the exhaust pipe, and the exhaust pipe is connected with the purification ball, the outer portion of inner cylinder body is provided with tail gas cooling mechanism. The utility model discloses scientific and reasonable structure design, through motor drive pivot and stirring paddle rotation to agitate neutral liquid, make neutral liquid and tail gas contact area increase, and the neutral efficiency improves greatly, and the gas through processing is filtered after discharging to the collection device in the purification ball, improves tail gas absorption efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of asphalt emulsifier exhaust gas purification equipment, specifically an emulsifier exhaust gas adsorption treatment device. Background Technology

[0002] In existing technologies, emulsifiers (including asphalt emulsifiers, cationic emulsifiers, anionic emulsifiers, etc.) generate complex organic waste gases during production. The treatment of these waste gases often faces the following problems: First, excessively high waste gas temperatures reduce the adsorption efficiency of adsorption materials (such as activated carbon fibers), affecting treatment efficiency. Second, existing cooling structures are mostly single spiral tubes or condenser bricks, resulting in low cooling efficiency and difficulty in adapting to the cooling requirements of different emulsifier exhaust gases, making it difficult to quickly and effectively treat asphalt emulsifier exhaust gases. Therefore, we propose an emulsifier exhaust gas adsorption treatment device. Utility Model Content

[0003] The purpose of this invention is to provide an emulsifier tail gas adsorption treatment device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an emulsifier tail gas adsorption treatment device, comprising a housing, a filter chamber provided at the inlet of the housing, an air inlet pipe provided at the top of the filter chamber, a filter screen provided inside the housing, an adsorption hood provided on the side of the filter screen, a suction fan provided on the side of the adsorption hood, a gas collecting pipe connected to the other end of the suction fan, the other end of the gas collecting pipe inserted into the liquid inside the inner cylinder, a check valve provided on the gas collecting pipe, a gas sensor group installed at the end of the gas collecting pipe near the inner cylinder, two independent neutralization storage tanks provided on the outside of the outer cylinder, the outlet of the neutralization storage tanks connected to the inner cylinder through a liquid inlet pipe, an electromagnetic flow valve installed on the liquid inlet pipe, and the gas sensor group and the electromagnetic flow valve electrically connected to a PLC controller;

[0005] The inner cylinder is equipped with a stirring mechanism. An exhaust pipe is inserted into the top of the inner cylinder, and a purification ball is connected to the exhaust pipe. Inside the purification ball, a three-layer composite filter structure of "activated carbon layer - molecular sieve layer - activated carbon layer" is set. An exhaust gas cooling mechanism is set outside the inner cylinder. The exhaust gas cooling mechanism includes a cooling pipe spirally wound on the inner cylinder. The cooling pipe has a double spiral staggered structure, and a spiral turbulence protrusion is added to the inner wall of the cooling pipe.

[0006] In the above scheme, the front of the box is hinged with a side door.

[0007] In the above scheme, the two ends of the filter screen are movably engaged in the mounting bracket.

[0008] In the above scheme, the adsorption cover is fixed on the bracket.

[0009] In the above scheme, an outer cylinder is provided outside the inner cylinder.

[0010] In the above scheme, the stirring mechanism includes a rotating shaft, and multiple stirring blades are arranged on the side of the rotating shaft. An arc-shaped guide vane is added to the surface of the stirring blade, and the guide vane forms a 30° angle with the stirring blade. An electric motor is connected to the bottom of the rotating shaft.

[0011] In the above scheme, the end of the cooling pipe is connected through a circulation pipe, and a water pump and a cooling tank are connected to the circulation pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This emulsifier tail gas adsorption treatment device has a simple and reasonable structural design and strong practicality. Through optimized structural design, it can be adapted to the tail gas treatment of various emulsifiers such as asphalt emulsifiers, cationic emulsifiers, and anionic emulsifiers, solving the problem of single-target application of existing devices; the cooling efficiency is significantly improved. The use of double-helix staggered cooling pipes combined with spiral turbulence protrusions on the inner wall increases the contact area between the cooling pipes and the inner cylinder, while enhancing the turbulence effect of the coolant. The synergistic effect of each link effectively improves the efficiency and adaptability of tail gas treatment, which has substantial characteristics and progress. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the inner cylinder structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the cooling pipe structure of this utility model.

[0016] In the diagram: 1. Box body; 11. Side door; 12. Filter chamber; 13. Air inlet pipe; 14. Filter screen; 15. Card holder; 16. Adsorption hood; 17. Fan; 18. Air collection pipe; 19. Check valve; 2. Outer cylinder; 21. Inner cylinder; 22. Rotating shaft; 23. Stirring paddle; 24. Motor; 25. Exhaust pipe; 26. Purification ball; 27. Cooling pipe; 28. Circulation pipe; 29. ​​Water pump; 3. Cooling box; 31. Gas sensor group; 32. Neutralization storage tank; 33. Electromagnetic flow valve. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-3 This utility model provides a technical solution: an emulsifier tail gas adsorption treatment device, including a box 1, a filter chamber 12 is provided at the feed inlet of the box 1, and an air inlet pipe 13 is provided at the top of the filter chamber 12. A filter screen 14 is provided inside the box 1, an adsorption cover 16 is provided on the side of the filter screen 14, a suction fan 17 is provided on the side of the adsorption cover 16, and a gas collecting pipe 18 is connected to the other end of the suction fan 17. The other end of the gas collecting pipe 18 is inserted into the liquid inside the inner cylinder 21, and a check valve 19 is provided on the gas collecting pipe 18. A gas sensor group 31 is installed at the end of the gas collecting pipe 18 near the inner cylinder 21. Two independent neutralization storage tanks 32 are provided on the outside of the outer cylinder 2. The outlet of the neutralization storage tank 32 is connected to the inner cylinder 21 through a liquid inlet pipe, and an electromagnetic flow valve 33 is installed on the liquid inlet pipe. The gas sensor group 31 and the electromagnetic flow valve 33 are electrically connected to a PLC controller.

[0019] By adding a miniature gas sensor array (including VOCs sensor, pH sensor, and sulfide / nitride specific sensor) to one end of the gas collection pipe 18 near the inner cylinder 21, the sensor is electrically connected to the subsequent PLC controller, and key parameters such as the concentration of organic pollutants and acid / alkalinity in the exhaust gas can be collected in real time.

[0020] Two independent neutralization storage tanks are added to the outside of the outer cylinder 2 (to store acidic neutralization liquid, such as dilute sulfuric acid; and alkaline neutralization liquid, such as sodium hydroxide solution, respectively). The outlet of the neutralization storage tank 32 is connected to the inner cylinder 21 through the inlet pipe, and an electromagnetic flow valve 33 is installed on the inlet pipe. The electromagnetic flow valve is controlled by a PLC controller.

[0021] When the exhaust gas is transported through the gas collection pipe 18, the sensor array detects its composition and pH level in real time and transmits the data to the PLC controller.

[0022] The controller automatically adjusts the replenishment volume of the two storage tanks according to a preset algorithm (e.g., when the concentration of acidic exhaust gas is >500ppm, the solenoid valve of the alkaline storage tank is opened, and alkaline neutralizing liquid is replenished at a ratio of 1:10) to ensure that the pH value of the neutralizing liquid in the inner cylinder 21 is always maintained in the optimal neutralization range of 7±0.5.

[0023] A stirring mechanism is installed inside the inner cylinder 21. An exhaust pipe 25 is inserted into the top of the inner cylinder 21, and a purification ball 26 is connected to the exhaust pipe 25. Inside the purification ball 26, a three-layer composite filter structure of "activated carbon layer - molecular sieve layer - activated carbon layer" is set. An exhaust gas cooling mechanism is installed outside the inner cylinder 21. The exhaust gas cooling mechanism includes a cooling pipe 27 spirally wound on the inner cylinder 21. The cooling pipe 27 has a double-helix staggered structure, and a spiral turbulence protrusion is added to the inner wall of the cooling pipe 27. Furthermore, a drying layer is provided inside the purification ball 26 to dry the moisture inside the exhaust gas.

[0024] In the above scheme, the front of the box 1 is hinged to a side door 11. The side door 11 is sealed to the box 1 by a sealing measure.

[0025] By setting a filter chamber 12 at the air inlet of the housing 1 to remove impurities, the purity of the gas is ensured, which facilitates subsequent filtration and neutralization operations. Specifically, the filter chamber 12 is equipped with a coarse filter screen to filter large impurities inside the gas.

[0026] In the above solution, both ends of the filter screen 14 are movably engaged within the mounting bracket 15. This plug-in connection allows the filter screen 14 to be disassembled for cleaning after the side door 11 is opened, improving the maintenance efficiency of the device.

[0027] In the above scheme, the adsorption hood 16 is fixed on the bracket. By setting up the adsorption hood 16 and the suction fan 17 to quickly capture and collect the exhaust gas, the recovery efficiency is enhanced. Furthermore, the impurities in the exhaust gas are filtered by the quickly removable filter screen 14, thereby preventing impurities from clogging the pipes, improving the exhaust gas recovery effect, and ensuring the stability of the equipment.

[0028] In the above scheme, an outer cylinder 2 is provided outside the inner cylinder 21. The design of the outer cylinder 2 provides a heat insulation effect, ensuring the cooling and heat preservation effect of the cooling pipe 27.

[0029] In the above scheme, the stirring mechanism includes a rotating shaft 22, on the side of which multiple stirring paddles 23 are arranged. Arc-shaped guide vanes are added to the surface of the stirring paddles 23, forming a 30° angle with the paddles. A motor 24 is connected to the bottom of the rotating shaft 22. Specifically, the motor 24 is connected to a power source and a switch via wires. The motor 24 drives the rotating shaft 22 to continuously rotate the stirring paddles 23, stirring the liquid in the inner cylinder 21. The inner cylinder 21 contains a neutralizing liquid for neutralizing acidic or alkaline gases. The motor 24 drives the rotating shaft 22 and stirring paddles 23 to rotate, thereby agitating the neutralizing liquid and increasing the contact area between the neutralizing liquid and the exhaust gas, greatly improving the neutralization efficiency. The treated gas is filtered through the purification ball 26 and then discharged into the collection device, achieving effective absorption and treatment of the exhaust gas and realizing the purification effect.

[0030] In the above scheme, the exhaust gas cooling mechanism includes a cooling pipe 27 spirally wound on the inner cylinder 21. The end of the cooling pipe 27 is connected through a circulation pipe 28, and a water pump 29 and a cooling tank 3 are connected to the circulation pipe 28. The exhaust gas cooling mechanism, which is formed by the spiral cooling pipe 27 inside the inner cylinder 21 and the outer cylinder 2, connected to the circulation pipe 28, the water pump 29, and the cooling tank 3, greatly improves the exhaust gas cooling efficiency, rapidly reduces the overall temperature of the exhaust gas, and improves the exhaust gas absorption efficiency.

[0031] Working principle:

[0032] This emulsifier tail gas adsorption treatment device connects the air inlet pipe 13 to the tail gas emission mechanism. The tail gas enters the box 1 after being filtered through the filter layer inside the filter chamber 12. At this time, under the action of the suction fan 17, the airflow filtered by the filter screen 14 enters the gas collection pipe 18 from the adsorption cover 16 and is introduced into the inner cylinder 21 to contact the liquid with adsorption effect. When the tail gas is transported through the gas collection pipe 18, the sensor array detects its composition and pH in real time and transmits the data to the PLC controller. The PLC controller adjusts the replenishment amount of the two storage tanks according to the preset algorithm.

[0033] The electric motor 24 drives the rotating shaft 22 to continuously rotate the stirring paddle 23 to stir the liquid in the inner cylinder 21. The inner cylinder 21 contains a neutralizing liquid to neutralize acidic or alkaline gases, which increases the contact area between the neutralizing liquid and the exhaust gas, greatly improving the neutralization efficiency. When the treated gas is discharged from the exhaust pipe 25, it is filtered by the purification ball 26 and then discharged into the collection device. The neutralized gas rises to the top of the inner cylinder and enters the purification ball through the exhaust pipe. It is filtered sequentially through the activated carbon layer, the 13X type molecular sieve layer, and the activated carbon layer to remove residual organic components and moisture before finally being discharged into the collection device. This completes the efficient treatment of exhaust gas from various emulsifiers, achieving effective absorption and treatment of exhaust gas and purifying the exhaust gas. During this process, the water pump 29 causes the coolant inside the cooling tank 3 to circulate in the cooling pipe 27, greatly improving the exhaust gas cooling efficiency, rapidly reducing the overall temperature of the exhaust gas, and improving the exhaust gas absorption efficiency.

[0034] 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. An emulsifier tail gas adsorption treatment device, comprising a housing (1), characterized in that: The feed inlet of the box (1) is equipped with a filter chamber (12), and an air inlet pipe (13) is provided on the top of the filter chamber (12). A filter screen (14) is provided inside the box (1), and an adsorption hood (16) is provided on the side of the filter screen (14). A suction fan (17) is provided on the side of the adsorption hood (16), and the other end of the suction fan (17) is connected to a gas collecting pipe (18). The other end of the gas collecting pipe (18) is inserted into the liquid inside the inner cylinder (21). A check valve (19) is provided on the gas collecting pipe (18). A gas sensor group (31) is installed at one end of the gas collecting pipe (18) near the inner cylinder (21). Two independent neutralization storage tanks (32) are provided on the outside of the outer cylinder (2). The outlet of the neutralization storage tank (32) is connected to the inner cylinder (21) through the liquid inlet pipe. An electromagnetic flow valve (33) is installed on the liquid inlet pipe. The gas sensor group (31) and the electromagnetic flow valve (33) are electrically connected to the PLC controller. The inner cylinder (21) is equipped with a stirring mechanism. An exhaust pipe (25) is inserted into the top of the inner cylinder (21), and a purification ball (26) is connected to the exhaust pipe (25). A three-layer composite filter structure of "activated carbon layer - molecular sieve layer - activated carbon layer" is set inside the purification ball (26). An exhaust gas cooling mechanism is set outside the inner cylinder (21). The exhaust gas cooling mechanism includes a cooling pipe (27) spirally wound on the inner cylinder (21). The cooling pipe (27) has a double spiral staggered structure, and a spiral turbulence protrusion is added to the inner wall of the cooling pipe (27).

2. The emulsifier tail gas adsorption treatment device according to claim 1, characterized in that: The front of the box (1) is hinged with a side door (11).

3. The emulsifier tail gas adsorption treatment device according to claim 1, characterized in that: The two ends of the filter (14) are movably engaged in the holder (15).

4. The emulsifier tail gas adsorption treatment device according to claim 1, characterized in that: The adsorption cover (16) is fixed on the bracket.

5. The emulsifier tail gas adsorption treatment device according to claim 1, characterized in that: The inner cylinder (21) is provided with an outer cylinder (2).

6. The emulsifier tail gas adsorption treatment device according to claim 1, characterized in that: The stirring mechanism includes a rotating shaft (22), and multiple stirring paddles (23) are provided on the side of the rotating shaft (22). An arc-shaped guide vane is added to the surface of the stirring paddle (23), and the guide vane forms a 30° angle with the stirring paddle (23). A motor (24) is connected to the bottom of the rotating shaft (22).

7. The emulsifier tail gas adsorption treatment device according to claim 1, characterized in that: The end of the cooling pipe (27) is connected to a circulation pipe (28), and a water pump (29) and a cooling tank (3) are connected to the circulation pipe (28).

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