Sulfuric acid tail gas treatment absorption tower based on chemical equipment

Abstract

The utility model discloses a sulfuric acid tail gas treatment absorption tower based on chemical equipment. The sulfuric acid tail gas treatment absorption tower based on the chemical equipment comprises a tower body, and a gas inlet box is mounted on one side of the tower body; a first cavity and a second cavity are formed in the air inlet box, a through hole is formed between the first cavity and the second cavity, a sealing plate is mounted in the through hole, an air inlet pipe and an air outlet pipe are mounted on the two sides of the first cavity, and the air outlet pipe is communicated with the interior of the tower body. According to the sulfuric acid tail gas treatment absorption tower based on the chemical equipment, the first cavity and the second cavity are arranged in the gas inlet box, and the filter screen and the collection box are respectively arranged in the two cavities, so that when the equipment is used, the through hole is sealed by using the sealing plate, and the absorption tower can be used for absorbing the sulfuric acid tail gas without influencing the normal use of the equipment. And the collection box is taken out and treated, so that normal treatment of the sulfuric acid tail gas is not affected, and the tail gas treatment efficiency of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of absorption towers, in particular to an absorption tower for treating sulfuric acid tail gas based on chemical equipment. Background Technique

[0002] In addition to containing a large amount of harmless N2, O2 and CO2, sulfuric acid tail gas also contains a small amount of harmful SO2 and acid mist, which need to be treated to meet the emission standards before being discharged into the atmosphere. However, the existing treatment device for sulfuric acid tail gas removes mist through a tail gas absorption tower and is treated by washing with water under normal conditions. During the process of the water washing method, part of the sulfuric acid tail gas and water may not be fully absorbed and directly enter the next process, resulting in a decrease in the solid conversion rate of the tail gas absorption tower, thus leading to an unsatisfactory treatment effect of sulfuric acid tail gas.

[0003] A document with the authorized publication number CN219272479U discloses a multifunctional absorption tower for treating sulfuric acid tail gas. The multifunctional absorption tower for treating sulfuric acid tail gas includes a tower body, and an air inlet box is fixedly installed on the outer surface of the tower body. By setting an air inlet box, a metal filter screen and a vibration motor, etc., the sulfuric acid tail gas coming in from the air inlet pipe can be subjected to particle treatment. And by installing a vibration motor, the particles attached to the surface of the metal filter screen can be shaken off and collected inside the collection box. By installing a fixing block, the filtered waste gas can uniformly emerge from the air outlet holes and fully react with the reaction liquid inside the tower body, enhancing the efficiency. By setting a heat exchange tank and a water outlet pipe, when the high-temperature waste gas flows inside the air passage groove, it will quickly conduct heat to the fixing block, and the circulating water can cool the fixing block and conduct heat exchange while flowing inside the heat exchange tank, and the hot water can be supplied for domestic use.

[0004] When this absorption tower is in use, if it is necessary to remove the collection box to deal with the accumulated particulate matter in the collection box, since the collection box cannot be partitioned from the air inlet box, it is necessary to suspend the input of sulfuric acid tail gas into the air inlet box in order to remove and clean the collection box, thus affecting the normal treatment of sulfuric acid tail gas and reducing the tail gas treatment efficiency.

[0005] Therefore, it is necessary to provide an absorption tower for treating sulfuric acid tail gas based on chemical equipment to solve the above technical problems. Content of the Utility Model

[0006] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an absorption tower for treating sulfuric acid tail gas based on chemical equipment, which can take out and process the collection box without affecting the normal use of the equipment.

[0007] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0008] Based on a chemical equipment sulfuric acid tail gas treatment absorption tower, including: a tower body, on one side of the tower body, an air inlet box is fixedly installed; inside the air inlet box, there are a first cavity and a second cavity, a through hole is provided between the first cavity and the second cavity, a sealing plate is slidably installed in the through hole, on both sides of the first cavity, an air inlet pipe and an air outlet pipe are installed, the air outlet pipe is communicated with the inside of the tower body, a filter screen is installed in the first cavity, the top of the filter screen is inclined towards the side of the air inlet pipe, so that when the particulate matter on the filter screen falls, it is not easy to reattach to the filter screen, a vibration motor is installed on the filter screen, a collection box is installed in the second cavity, and a sealing door is installed on the outside of the second cavity.

[0009] Preferably, a heat exchange box is installed at the bottom of the tower body, one end of the air outlet pipe is connected to the heat exchange box, and the filtered sulfuric acid tail gas enters the heat exchange box through the air outlet pipe.

[0010] Preferably, a plurality of micropores are opened at the top of the heat exchange box. Due to the gas pressure in the heat exchange box, the liquid in the tower body cannot enter the heat exchange box through the micropores. Heat exchange fins are installed in the heat exchange box, and a plurality of heat exchange fins can be used, and the heat exchange fins are connected to the heating system.

[0011] Preferably, a filter plate is installed in the heat exchange box, and the filter plate is used to perform secondary filtration on the sulfuric acid tail gas, further removing particulate matter in the gas, making the gas entering the tower body purer, and reducing the accumulation speed of particulate matter on the surface of the heat exchange plate.

[0012] Preferably, a plurality of spray heads are installed in the tower body, a water pump is installed on the outside of the tower body, the water inlet end of the water pump is connected to the inside of the tower body, and the water outlet end is connected to the spray heads.

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

[0014] (1) By arranging two cavities, namely a first cavity and a second cavity, in the air inlet box, and installing the filter screen and the collection box in the two cavities respectively, when the equipment is in use, the through hole is closed by the sealing plate, the collection box can be taken out and processed without affecting the normal use of the equipment, and the normal treatment of the sulfuric acid tail gas will not be affected, thereby improving the tail gas treatment efficiency of the equipment;

[0015] (2) By installing a heat exchange box in the tower body, using the heat exchange fins in the heat exchange box to exchange heat with the tail gas, and utilizing the heat energy of the tail gas, it is beneficial to energy conservation;

[0016] (3) By installing a filter plate in the heat exchange box, the purity of the gas that can enter the tower body can be improved, and it is beneficial to improve the service life of the heat exchange plate;

[0017] (4) The utility model can perform secondary neutralization absorption on sulfuric acid tail gas by installing a spray head in the tower body and connecting a water pump to the spray head, improve the absorption efficiency of sulfuric acid tail gas, and facilitate the maintenance of the water pump. Brief Description of the Drawings

[0018] Figure 1 It is a front sectional structure schematic diagram of an absorption tower for sulfuric acid tail gas treatment based on chemical equipment provided by the utility model;

[0019] Figure 2 For Figure 1 It is a structure schematic diagram of an air inlet box in the absorption tower for sulfuric acid tail gas treatment based on chemical equipment shown in the figure;

[0020] Figure 3 For Figure 1 It is a sectional structure schematic diagram of an air inlet box in the absorption tower for sulfuric acid tail gas treatment based on chemical equipment shown in the figure;

[0021] Figure 4 For Figure 1 It is a sectional structure schematic diagram of a heat exchange box in the absorption tower for sulfuric acid tail gas treatment based on chemical equipment shown in the figure.

[0022] Among them, the names corresponding to the reference numerals are: 1 - tower body, 2 - air inlet box, 3 - heat exchange box, 4 - spray head, 5 - inlet pipe, 6 - outlet pipe, 7 - filter screen, 8 - vibration motor, 9 - through hole, 10 - collection box, 11 - micropore, 12 - heat exchange plate, 13 - filter plate, 14 - water pump, 15 - sealing plate. Detailed Embodiment

[0023] The following further describes the utility model in conjunction with the drawings and embodiments. The implementation manners of the utility model include but are not limited to the following embodiments.

[0024] Embodiment 1:

[0025] As Figures 1-4As shown in the figure, the absorption tower for treating sulfuric acid tail gas of chemical equipment provided by the utility model includes: a tower body 1, and an air inlet box 2 is fixedly installed on one side of the tower body 1. Other structures inside the tower body 1 adopt the content disclosed in CN219272479U, which will not be elaborated here. The air inlet box 2 is used to filter the sulfuric acid tail gas entering the tower body 1, filter and store the particulate matter in the tail gas. The specific structure is that a first cavity and a second cavity are arranged inside the air inlet box 2, a through hole 9 is arranged between the first cavity and the second cavity, a sealing plate 15 is slidably installed in the through hole 9, one end of the sealing plate 5 extends outside the air inlet box 2, the sealing plate 15 can be pulled outwards by a part to make the first cavity and the second cavity unblocked, or the through hole 9 can be closed by the sealing plate 9 to block the first cavity and the second cavity. Among them, an air inlet pipe 5 and an air outlet pipe 6 are installed on both sides of the first cavity, the air outlet pipe 6 is communicated with the inside of the tower body 1, a filter screen 7 is installed in the first cavity, and the top of the filter screen 7 is inclined towards the side of the air inlet pipe 5. Therefore, when the particulate matter on the filter screen 7 falls, it is not easy to reattach to the filter screen 7. A vibration motor 8 is installed on the filter screen 7, a collection box 10 is installed in the second cavity, and a sealing door 4 is installed on the outside of the second cavity 10. When in use, the sulfuric acid tail gas of the chemical equipment is connected to the air inlet pipe 5, the sulfuric acid tail gas enters the first cavity 1 of the air inlet box 2 through the air inlet pipe 5, and then the particulate matter in the tail gas is filtered by the filter screen 7. The filtered tail gas enters the tower body 1 for subsequent treatment. When the particulate matter on the filter screen 7 accumulates too much and affects the gas passing speed, at this time, the vibration motor 8 can be started to vibrate the filter screen 7. When the filter screen 7 vibrates, the particulate matter attached to it falls into the collection box 10 in the second cavity through the through hole 9. After the particulate matter in the collection box 10 is collected for a period of time, press the exposed part of the sealing plate 15 and push the sealing plate 15 inwards to seal the through hole 9. At this time, the first cavity is isolated from the second cavity, and the gas in the first cavity cannot enter the second cavity. Then open the sealing door 4, take out the collection box 10 in the second cavity, and the particulate matter in the collection box 10 can be processed. After the processing is completed, the collection box 10 is stuffed into the second cavity, the sealing door 4 is closed, and the sealing plate 15 is pulled outwards to open the through hole 9, and the first cavity is communicated with the second cavity, and the collection box 10 can normally collect particulate matter.

[0026] By arranging two cavities, namely the first cavity and the second cavity, inside the air inlet box 2, and installing the filter screen 7 and the collection box 10 in the two cavities respectively, when the equipment is in use, the through hole 9 is closed by the sealing plate 15, and the collection box 10 can be taken out and processed without affecting the normal use of the equipment, and it will not affect the normal treatment of the sulfuric acid tail gas, thereby improving the tail gas treatment efficiency of the equipment.

[0027] Embodiment 2:

[0028] AsFigure 1 and Figure 4 As shown, a heat exchange box 3 is installed at the bottom of the tower body 1. One end of the air outlet pipe 6 is connected to the heat exchange box 3. The filtered sulfuric acid tail gas enters the heat exchange box 3 through the air outlet pipe 6. A plurality of micropores 11 are provided at the top of the heat exchange box 3. Due to the gas pressure in the heat exchange box 3, the liquid in the tower body 1 cannot enter the heat exchange box 3 through the micropores 11. Heat exchange fins 12 are installed in the heat exchange box 3. A plurality of heat exchange fins 12 can be used, and the heat exchange fins 12 are connected to the heating system for supplying domestic heating. During use, the filtered sulfuric acid tail gas enters the heat exchange box 1 through the air outlet pipe 6 outside the tower body 1, filling the heat exchange box 1 with high-pressure and high-temperature sulfuric acid tail gas. The tail gas exchanges heat with the heat exchange fins 12, and the generated hot water is used for production and domestic use. The high-pressure sulfuric acid tail gas is discharged into the tower body 1 through the micropores 11 and is neutralized and absorbed by the liquid in the tower body 1. The generated pure gas is discharged from the top outlet of the tower body 1. Since the sulfuric acid tail gas first exchanges heat with the heat exchange fins 12 in the heat exchange box 3 instead of first exchanging heat with the liquid in the tower body 1, the heat energy of the tail gas can be utilized maximally, and the efficiency is higher.

[0029] By installing the heat exchange box 3 in the tower body 1 and using the heat exchange fins 12 in the heat exchange box 3 to exchange heat with the tail gas, the heat energy of the tail gas is utilized, which is beneficial to energy conservation.

[0030] Example 3:

[0031] As Figure 4 shown, a filter plate 13 is installed in the heat exchange box 3. The filter plate 13 is used for secondary filtration of the sulfuric acid tail gas to further remove particulate matter in the gas, making the gas entering the tower body 1 purer and reducing the accumulation speed of particulate matter on the surface of the heat exchange plate 12. During use, the tail gas initially filtered by the filter screen 7 enters the heat exchange box 3. When the gas passes through the filter plate 13, the filter plate 13 performs secondary filtration on the gas to further remove particulate matter in the gas. Thus, when the gas exchanges heat with the heat exchange plate 12, the speed of particulate matter adhering to the surface of the heat exchange plate 12 is reduced. The fewer the particulate matter adhering to the surface of the heat exchange plate 12, the higher the heat exchange efficiency of the heat exchange plate 12. Conversely, the lower the efficiency of the heat exchange plate 12 and the shorter its service life. Therefore, through this measure, it is beneficial to improve the service life of the heat exchange plate 12 and the purity of the gas entering the tower body 1.

[0032] By installing the filter plate 13 in the heat exchange box 3, the purity of the gas that can enter the tower body 1 can be improved, and it is beneficial to improve the service life of the heat exchange plate 12.

[0033] Example 4:

[0034] As Figure 1As shown in the figure, a plurality of spray heads 4 are installed inside the tower body 1. A water pump 14 is installed outside the tower body 1. The water inlet end of the water pump 14 is connected to the inside of the tower body 1, and the water outlet end is connected to the spray heads 4. During use, the water pump 14 pumps the liquid inside the tower body 1 and supplies it for use by the spray heads 4. The spray heads 14 spray atomized liquid, which can neutralize and absorb some substances (acidic substances) in the gas inside the tower body 1 again, improving the absorption efficiency of acidic gases. Moreover, the water pump 14 is located outside the tower body 1, making it more convenient for maintenance and repair.

[0035] By installing spray heads 4 inside the tower body 1 and installing a water pump 14 connected to the spray heads 4, the sulfuric acid tail gas can be secondarily neutralized and absorbed, improving the absorption efficiency of the sulfuric acid tail gas, and it is convenient to maintain the water pump 14.

[0036] Embodiment 5:

[0037] As Figure 1 shown, an exhaust fan is installed at the top of the tower body 1. The exhaust fan is used to discharge the treated tail gas. During use, the purified tail gas after treatment is discharged outside the tower body 1 through the exhaust fan.

[0038] By installing an exhaust fan at the top of the tower body 1, it is convenient to discharge the treated gas inside the tower body 1.

[0039] Working principle: During use, the sulfuric acid tail gas of the chemical equipment is connected to the intake pipe 5. The sulfuric acid tail gas enters the first cavity 1 of the intake box 2 through the intake pipe 5, and then the particulate matter in the tail gas is filtered by the filter screen 7. The filtered tail gas enters the tower body 1 for subsequent treatment. When the particulate matter on the filter screen 7 accumulates too much and affects the gas passing speed, at this time, the vibration motor 8 can be started to vibrate the filter screen 7. When the filter screen 7 vibrates, the particulate matter attached to it falls into the collection box 10 inside the second cavity through the through hole 9. After the particulate matter in the collection box 10 has been collected for a period of time, press the exposed part of the sealing plate 15 and push the sealing plate 15 inward to seal the through hole 9. At this time, the first cavity is isolated from the second cavity, and the gas in the first cavity cannot enter the second cavity. Then open the sealing door 4 and take out the collection box 10 inside the second cavity, and the particulate matter in the collection box 10 can be treated. After the treatment is completed, insert the collection box 10 into the second cavity, close the sealing door 4, and pull the sealing plate 15 outward to open the through hole 9, and the first cavity is connected to the second cavity, and the collection box 10 can normally collect particulate matter.

Claims

1. A sulfuric acid tail gas treatment absorption tower based on chemical equipment, characterized in that Comprising: A tower body (1), on one side of which an air inlet box (2) is installed; The air inlet box (2) is provided with a first cavity and a second cavity. A through hole (9) is provided between the first cavity and the second cavity. A sealing plate (15) is installed in the through hole (9). An air inlet pipe (5) and an air outlet pipe (6) are installed on both sides of the first cavity. The air outlet pipe (6) is communicated with the inside of the tower body (1). A filter screen (7) is installed in the first cavity. The top of the filter screen (7) is inclined towards the side of the air inlet pipe (5). A vibration motor (8) is installed on the filter screen (7). A collection box (10) is installed in the second cavity. A sealing door is installed on the outer side of the second cavity.

2. The absorption tower for sulfuric acid tail gas treatment based on chemical equipment according to claim 1, wherein A heat exchange box (3) is installed at the bottom of the tower body (1). One end of the air outlet pipe (6) is connected to the heat exchange box (3).

3. The absorption tower for treating sulfuric acid tail gas of chemical equipment according to claim 2, wherein A plurality of micropores (11) are provided at the top of the heat exchange box (3). Heat exchange fins are installed in the heat exchange box (3).

4. A sulfuric acid tail gas treatment absorption tower based on chemical equipment according to claim 2, characterized in that, A filter plate (13) is installed in the heat exchange box (3).

5. A sulfuric acid tail gas treatment absorption tower based on chemical equipment according to claim 1, characterized in that, A plurality of spray heads (4) are installed in the tower body (1).

6. The sulfuric acid tail gas treatment absorption tower based on chemical equipment according to claim 5, characterized in that, A water pump (14) is installed on the outer side of the tower body (1). The water inlet end of the water pump (14) is connected to the inside of the tower body (1), and the water outlet end of the water pump (14) is connected to the spray heads (4).

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