Waste gas treatment equipment for petroleum additive production

Abstract

The utility model relates to the field of waste gas treatment equipment, in particular to waste gas treatment equipment for petroleum additive production, which comprises a dust removal box, a neutralization treatment box, an adsorption box and a controller. The dust removal box is filled with water, the dust removal box is provided with an air inlet pipe inserted below the liquid level, the air inlet pipe is provided with an induced draft fan, the upper end of the dust removal box is provided with a first air conveying pipe connected with the neutralization treatment box, the neutralization treatment box is filled with alkali liquor, the first air conveying pipe extends below the liquid level, and the neutralization treatment box is internally provided with a second air conveying pipe communicated with the adsorption box. An activated carbon adsorption unit is detachably arranged in the adsorption box, and the adsorption box is provided with an exhaust pipe. The tail gas treatment device is used for carrying out dust removal, cooling and pH value adjustment on tail gas and then carrying out organic matter adsorption, so that the service life of adsorbed substances in the adsorption box is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment equipment, specifically to a waste gas treatment device for the production of petroleum additives. Background Technology

[0002] The production of petroleum additives generates exhaust gas, which contains volatile organic compounds (VOCs), sulfur-containing compounds, nitrogen-containing compounds, and particulate matter. Among them, VOCs include benzene compounds, alkenes, alcohols, aldehydes and ketones; sulfur-containing compounds include hydrogen sulfide, thiols, and sulfur dioxide; and nitrogen-containing compounds include nitrogen oxides, ammonia, nitrobenzene, and amine compounds.

[0003] The common practice in exhaust gas treatment is to use activated carbon for adsorption. However, during the adsorption process, dust and acidic substances in the exhaust gas can damage the activated carbon and shorten its service life. Therefore, it is particularly necessary to design an exhaust gas treatment device for petroleum additive production that can extend the service life of activated carbon. Summary of the Invention

[0004] The purpose of this invention is to provide a waste gas treatment device for petroleum additive production, which has the advantage of extending the service life of activated carbon.

[0005] The technical solution adopted is as follows:

[0006] A waste gas treatment device for petroleum additive production includes a dust collector, a neutralization treatment box, an adsorption box, and a controller. The dust collector is filled with water and has an air inlet pipe inserted below the liquid surface. An induced draft fan is installed on the air inlet pipe. A first gas delivery pipe connected to the neutralization treatment box is installed at the upper end of the dust collector. The neutralization treatment box is filled with alkaline solution. The first gas delivery pipe extends below the liquid surface. A second gas delivery pipe is connected to the adsorption box inside the neutralization treatment box. An activated carbon adsorption unit is detachably installed inside the adsorption box. The adsorption box is equipped with an exhaust pipe.

[0007] Preferably, a conveying pump is provided at the upper end of the dust removal box, a heating box is provided on the outside of the neutralization treatment box, a temperature sensor is provided inside the dust removal box, the temperature sensor and the conveying pump are both connected to the controller, the conveying pump is provided with a water suction pipe inserted into the dust removal box and a drain pipe connected to the heating box, a return water pipe is provided at the upper end of the heating box, the return water pipe is connected to a heat dissipation mechanism, and the heat dissipation mechanism is provided with a conveying pipe connected to the dust removal box.

[0008] Preferably, a filter screen is installed below the liquid level inside the dust collection box, and a water pumping pipe is located above the filter screen.

[0009] Preferably, the heat dissipation mechanism includes a heat exchanger, with its two ends connected to a return water pipe and a delivery pipe, respectively, and a cooling fan provided at the front end of the heat exchanger.

[0010] Preferably, the neutralization treatment box is equipped with a pH meter.

[0011] Preferably, the exhaust pipe is equipped with an exhaust gas composition detection unit.

[0012] Compared to existing technologies, the advantages are:

[0013] The dust collector removes dust from the exhaust gas and cools it down. Then, the exhaust gas enters the neutralization treatment box, where it is neutralized with alkaline solution to neutralize the acidic exhaust gas. After cooling, dust removal, and neutralization, the exhaust gas enters the adsorption box to reduce damage to the adsorbent material inside and extend its service life. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a waste gas treatment device for petroleum additive production according to this utility model.

[0015] Figure 2 This is a front view structural schematic diagram of a waste gas treatment device for petroleum additive production according to this utility model.

[0016] Figure 3 This is a top view schematic diagram of a waste gas treatment device for petroleum additive production according to this utility model.

[0017] In the diagram: 1. Dust collection box; 2. Neutralization treatment box; 3. Adsorption box; 4. Controller; 5. Water injection pipe; 6. Drain valve; 7. Air inlet pipe; 8. Exhaust fan; 9. First air supply pipe; 11. Transfer pump; 12. Heating box; 13. Temperature sensor; 14. Water pumping pipe; 15. Drain pipe; 16. Filter screen; 17. Return water pipe; 18. Transfer pipe; 19. Heat exchanger; 20. Cooling fan; 21. Second air supply pipe; 22. Exhaust pipe. Detailed Implementation

[0018] The present invention will be further described below with reference to specific embodiments, such as... Figures 1 to 3 As shown:

[0019] Example 1: A waste gas treatment device for petroleum additive production includes a dust collection box 1, a neutralization treatment box 2, an adsorption box 3, and a controller 4. The dust collection box 1 is filled with water. Water injection pipes 5 and drain valves 6 are respectively installed at the upper and lower ends of the dust collection box 1. The dust collection box 1 is equipped with an air inlet pipe 7 that is inserted below the liquid surface. An induced draft fan 8 is installed on the air inlet pipe 7. The exhaust gas of the induced draft fan 8 is introduced into the dust collection box 1. After the exhaust gas comes into contact with the liquid, the particulate matter in the exhaust gas is removed, and the high temperature of the exhaust gas is cooled down at the same time.

[0020] The upper end of the dust collector 1 is equipped with a first gas supply pipe 9 connected to the neutralization treatment box 2. The neutralization treatment box 2 is filled with alkaline solution. The first gas supply pipe 9 extends below the liquid surface. After the exhaust gas is cooled and the particulate matter is removed, it is injected into the alkaline solution for neutralization reaction to adjust the pH value of the exhaust gas. The neutralization treatment box 2 is connected to the adsorption box 3 by a second gas supply pipe 21. The adsorption box 3 is equipped with a detachable activated carbon adsorption unit. The adsorption box 3 is equipped with an exhaust pipe 22. The exhaust gas that has undergone dust removal, cooling and pH adjustment enters the adsorption box 3 for adsorption treatment and is then discharged from the exhaust pipe 22.

[0021] Example 2: A waste gas treatment device for petroleum additive production includes a dust collection box 1, a neutralization treatment box 2, an adsorption box 3, and a controller 4. The dust collection box 1 is filled with water. Water injection pipes 5 and drain valves 6 are respectively installed at the upper and lower ends of the dust collection box 1. The dust collection box 1 is equipped with an air inlet pipe 7 that is inserted below the liquid surface. An induced draft fan 8 is installed on the air inlet pipe 7. The exhaust gas of the induced draft fan 8 is introduced into the dust collection box 1. After the exhaust gas comes into contact with the liquid, the particulate matter in the exhaust gas is removed, and the high temperature of the exhaust gas is cooled down at the same time.

[0022] The upper end of the dust collector 1 is equipped with a first gas supply pipe 9 connected to the neutralization treatment box 2. The neutralization treatment box 2 is filled with alkaline solution. The first gas supply pipe 9 extends below the liquid surface. The exhaust gas after cooling and removal of particulate matter is injected into the alkaline solution for neutralization reaction to adjust the pH value of the exhaust gas. The neutralization treatment box is equipped with a pH value detector to monitor the pH value in the neutralization treatment box. When the pH value needs to be adjusted, alkaline solution is added to the neutralization treatment box to adjust the pH value.

[0023] A conveying pump 11 is installed at the upper end of the dust collection box 1. A heating box 12 is installed on the outside of the neutralization treatment box 2. A temperature sensor 13 is installed inside the dust collection box 1. The temperature sensor 13 and the conveying pump 11 are both connected to the controller 4. The conveying pump 11 is equipped with a water suction pipe 14 inserted into the dust collection box 1 and a drain pipe 15 connected to the heating box 12. A filter screen 16 is installed below the liquid level inside the dust collection box 1. The water suction pipe 14 is located above the filter screen 16. A return water pipe 17 is installed at the upper end of the heating box 12. The return water pipe 17 is connected to a heat dissipation mechanism. The heat dissipation mechanism is equipped with a conveying pipe 18 connected to the dust collection box 1.

[0024] The neutralization treatment box is heated by the high-temperature water in the dust removal box 1, thereby accelerating the neutralization reaction rate. The heat dissipation mechanism includes a heat exchanger 19, with its two ends connected to the return water pipe 17 and the delivery pipe 18, respectively. A cooling fan 20 is provided at the front end of the heat exchanger 19. The heat dissipation mechanism dissipates heat from the high-temperature water to prevent the water temperature from becoming too high.

[0025] The neutralization treatment box 2 is connected to the adsorption box 3 by a second gas supply pipe 21. The adsorption box 3 is equipped with a detachable activated carbon adsorption unit and an exhaust pipe 22. The exhaust gas, after dust removal, cooling and pH adjustment, enters the adsorption box 3 for adsorption treatment and is then discharged from the exhaust pipe 22. The exhaust pipe 22 is equipped with an exhaust gas component detection unit to monitor the components of the treated exhaust gas and ensure that the discharged exhaust gas meets the emission standards.

[0026] The working principle is as follows:

[0027] The exhaust fan 8 introduces the exhaust gas into the dust collection box 1, where it enters below the liquid surface for cooling and dust removal. The gas then enters the neutralization treatment box to neutralize the acidic substances in the exhaust gas. After that, it enters the adsorption box 3 to adsorb organic matter. At the same time, the transfer pump 11 transports the water in the dust collection box 1 to the heating box 12 to heat the alkaline solution, thereby increasing the rate of the neutralization reaction. Meanwhile, the heat dissipation mechanism is used to dissipate heat from the water to prevent it from getting too hot, keeping the water and alkaline solution at the same temperature. According to the data from the pH value detector, when it is necessary to adjust the pH value, alkaline solution is added to the neutralization treatment box to adjust the pH value.

[0028] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A waste gas treatment device for petroleum additive production, characterized in that: It includes a dust removal box (1), a neutralization treatment box (2), an adsorption box (3) and a controller (4). The dust removal box (1) is filled with water. The dust removal box (1) is equipped with an air inlet pipe (7) that is inserted below the liquid surface. An induced draft fan (8) is installed on the air inlet pipe (7). The upper end of the dust removal box (1) is equipped with a first gas supply pipe (9) that is connected to the neutralization treatment box (2). The neutralization treatment box (2) is filled with alkaline solution. The first gas supply pipe (9) extends below the liquid surface. The neutralization treatment box (2) is connected to the adsorption box (3) by a second gas supply pipe (21). The adsorption box (3) is equipped with a detachable activated carbon adsorption unit. The adsorption box (3) is equipped with an exhaust pipe (22).

2. The waste gas treatment equipment for petroleum additive production as described in claim 1, characterized in that: The dust removal box (1) is equipped with a conveying pump (11) at the upper end, and a heating box (12) is provided on the outside of the neutralization treatment box (2). A temperature sensor (13) is provided inside the dust removal box (1). The temperature sensor (13) and the conveying pump (11) are both connected to the controller (4). The conveying pump (11) is equipped with a water pumping pipe (14) inserted into the dust removal box (1) and a drain pipe (15) connected to the heating box (12). A return water pipe (17) is provided at the upper end of the heating box (12). The return water pipe (17) is connected to a heat dissipation mechanism. The heat dissipation mechanism is equipped with a conveying pipe (18) connected to the dust removal box (1).

3. The waste gas treatment equipment for petroleum additive production as described in claim 2, characterized in that: A filter screen (16) is installed below the liquid level inside the dust collection box (1), and a water pumping pipe (14) is located above the filter screen (16).

4. The waste gas treatment equipment for petroleum additive production as described in claim 2, characterized in that: The heat dissipation mechanism includes a heat exchanger (19), with its two ends connected to a return water pipe (17) and a delivery pipe (18) respectively, and a cooling fan (20) provided at the front end of the heat exchanger (19).

5. The waste gas treatment equipment for petroleum additive production as described in claim 1, characterized in that: The neutralization treatment box (2) is equipped with a pH value detector.

6. The waste gas treatment equipment for petroleum additive production as described in claim 1, characterized in that: The exhaust pipe (22) is equipped with an exhaust gas component detection unit.

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