Coal chemical waste gas treatment and purification device

Abstract

The utility model relates to waste gas treatment technical field, concretely relates to a coal chemical industry's waste gas treatment purification device, including acid liquid purification seat, still including acid liquid purification seat top fixed connection's left connecting frame, the top fixed connection of left connecting frame has the connecting pipe, the inside fixed connection of connecting pipe has the air inlet pipe, the top fixed connection of air inlet pipe has the top frame, the side fixed connection of top frame has right branch plate, the back of top frame is equipped with arc fixed frame, the outside fixed connection of arc fixed frame has left branch plate, the rotary joint of left branch plate and right branch plate between has connecting rod, through the replaceable fiber filter screen, when carrying out the pretreatment to coal chemical industry waste gas, can effectively intercept and filter off the larger particulate matters and impurities in waste gas, avoid these impurities to enter the subsequent air inlet pipe, acid liquid purification seat, lye purification seat etc. Part causes the jam of smooth operation of each purification link, guarantees the smooth operation of each purification link.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a waste gas treatment and purification device for coal chemical industry. Background Technology

[0002] The coal chemical industry generates a large amount of waste gas during production. This waste gas has a complex composition and contains various pollutants, such as sulfides, nitrogen oxides, and particulate matter. Direct emission of these gases can cause serious environmental pollution and may also harm human health. Therefore, effective treatment and purification of coal chemical waste gas is a key step in achieving the industry's green development.

[0003] The patent publication number "CN 222510822 U" discloses "a waste gas treatment and purification device for coal chemical industry, including an acid purification seat and an alkali purification seat. The acid purification seat and the alkali purification seat are connected by a gas guide pipe. A gas distribution seat is provided on the inner side of both the acid purification seat and the alkali purification seat. An air inlet pipe is fixedly connected to the input end of the top side of the gas distribution seat inside the acid purification seat. The gas distribution seat is a hollow frame seat. This waste gas treatment and purification device for coal chemical industry, through the setting of the acid purification seat and the alkali purification seat, can use the air inlet pipe to sequentially transmit the waste gas to the gas distribution seat inside the acid purification seat and the alkali purification seat. With the top plate and the gas distribution pipe, the contact area between the waste gas and the acid and alkali solutions can be guaranteed, ensuring the purification and adsorption effect. At the same time, the setting of two sets of activated carbon adsorption mesh can absorb the liquid molecules in the gas after contact with the acid and alkali solutions, ensuring the purification effect. This solves the problem that existing devices are difficult to continuously purify waste gas with acid and alkali solutions."

[0004] To address the aforementioned issues, existing coal chemical waste gas treatment and purification devices often use fixed filters in the pretreatment stage, making them difficult to replace. This results in the filters intercepting a significant amount of particulate matter and impurities during the filtration process, making them difficult to clean or replace quickly. Filter clogging can obstruct waste gas flow, affecting the smooth operation of subsequent purification stages. Furthermore, long-term use can significantly reduce filtration efficiency, rendering the filters ineffective at intercepting impurities. Utility Model Content

[0005] The purpose of this invention is to provide a waste gas treatment and purification device for coal chemical industry, which solves the problem that most filters are fixed and cannot be easily replaced.

[0006] To achieve the above objectives, this utility model provides a waste gas treatment and purification device for coal chemical industry, including an acid purification base and a left connecting frame fixedly connected to the top of the acid purification base. A connecting pipe is fixedly connected to the top of the left connecting frame, and an air inlet pipe is fixedly connected inside the connecting pipe. A top frame is fixedly connected to the top of the air inlet pipe, and a right support plate is fixedly connected to the side of the top frame. An arc-shaped fixing frame is provided on the rear side of the top frame, and a left support plate is fixedly connected to the outer side of the arc-shaped fixing frame. A connecting rod is rotatably connected between the left and right support plates. A right fixing plate is fixedly connected to the side of the top frame, and a threaded hole is provided inside the right fixing plate. A left fixing plate is fixedly connected to the outer side of the arc-shaped fixing frame, and a fixing bolt is screwed into the inside of the left fixing plate. The left fixing plate is fixedly connected to the right fixing plate by the fixing bolt through the inner side of the threaded hole of the right fixing plate.

[0007] The top of the top frame is fixedly connected to an air inlet chamber, the other end of the connecting pipe is fixedly connected to a right connecting frame, and the bottom of the right connecting frame is fixedly connected to an alkaline solution purification base.

[0008] The acid purification seat has a left activated carbon filter fixedly connected to its inner side, the air inlet pipe passes through the interior of the left activated carbon filter, and the bottom end of the air inlet pipe is fixedly connected to a left air distributor.

[0009] The connecting pipe has a fixed pipe fixedly connected to the bottom right end, and a right air distributor fixedly connected to the bottom of the fixed pipe. Both the left and right air distributors have air nozzles on their tops.

[0010] The alkaline solution purification base is fixedly connected to an exhaust pipe on its outer side, and a right activated carbon filter is fixedly connected to its inner side. The right activated carbon filter is located above the right gas distributor, and the exhaust pipe is located above the right activated carbon filter. A butterfly valve is provided on the inner side of the exhaust pipe.

[0011] The top frame has a fiber filter that is slidably connected to its inner side, and the outer side of the fiber filter is in close contact with the inner side of the top frame.

[0012] This utility model discloses a waste gas treatment and purification device for coal chemical industry. Through a replaceable fiber filter, it effectively intercepts and filters out larger particles and impurities in the waste gas during pretreatment, preventing these impurities from entering subsequent components such as the air inlet pipe, acid purification seat, and alkali purification seat, thus ensuring smooth operation of each purification stage. Simultaneously, when the fiber filter's filtration efficiency decreases or it becomes clogged due to long-term use, it can be easily pulled out from the inside of the top frame for cleaning or replacement, ensuring consistently good pretreatment results and maintaining the stable and efficient operation of the entire waste gas treatment and purification device. This reduces the risk of equipment failure and maintenance costs caused by filter problems. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the external structure of an embodiment of the present utility model.

[0015] Figure 2 This is a schematic diagram of the left side structure of an embodiment of this utility model.

[0016] Figure 3 This is a top view of an embodiment of the present invention.

[0017] Figure 4 This is an embodiment of the present utility model. Figure 3 Enlarged view of the structure at point A in the middle.

[0018] Figure 5 This is a side anatomical diagram of an embodiment of the present invention.

[0019] 1. Acid purification seat; 2. Alkali purification seat; 3. Left connecting frame; 4. Connecting pipe; 5. Top frame; 6. Air inlet chamber; 7. Right connecting frame; 8. Exhaust pipe; 9. Butterfly valve; 10. Arc-shaped fixing frame; 11. Right fixing plate; 12. Left fixing plate; 13. Fixing bolt; 14. Right support plate; 15. Connecting rod; 16. Left support plate; 17. Left activated carbon filter; 18. Left air distributor seat; 19. Right air distributor seat; 20. Fixing pipe; 21. Right activated carbon filter; 22. Air inlet pipe; 23. Fiber filter; 24. Air nozzle. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0021] Please see Figures 1-5 ,

[0022] A waste gas treatment and purification device for coal chemical industry includes an acid purification base 1 and a left connecting frame 3 fixedly connected to the top of the acid purification base 1. A connecting pipe 4 is fixedly connected to the top of the left connecting frame 3. An air inlet pipe 22 is fixedly connected inside the connecting pipe 4. A top frame 5 is fixedly connected to the top of the air inlet pipe 22. A right support plate 14 is fixedly connected to the side of the top frame 5. An arc-shaped fixing frame 10 is provided on the rear side of the top frame 5. A left support plate 16 is fixedly connected to the outer side of the arc-shaped fixing frame 10. A connecting rod 15 is rotatably connected between the left support plate 16 and the right support plate 14. A right fixing plate 11 is fixedly connected to the side of the top frame 5. A threaded hole is provided inside the right fixing plate 11. A left fixing plate 12 is fixedly connected to the outer side of the arc-shaped fixing frame 10. A fixing bolt 13 is screwed into the inside of the left fixing plate 12. The left fixing plate 12 is screwed through the threaded hole of the right fixing plate 11 and fixedly connected to the right fixing plate 11 by the fixing bolt 13.

[0023] First, the acid purification seat 1 provides a container for the primary acid purification of the waste gas. The left connecting frame 3 on its top connects the acid purification seat 1 to the connecting pipe 4, ensuring the airtightness of the waste gas transmission channel. The air inlet pipe 22 inside the connecting pipe 4 is used to introduce the waste gas to be treated into the device, and the top frame 5 provides an installation base for the top of the air inlet pipe 22. The arc-shaped fixing frame 10 on the rear side of the top frame 5 can be rotated and adjusted by the connecting rod 15 between the left support plate 16 and the right support plate 14. When it is necessary to repair or replace the internal parts of the top frame 5, unscrew the fixing bolts 13 on the left fixing plate 12 to separate the left fixing plate 12 from the right fixing plate 11, and then rotate the arc-shaped fixing frame 10 to open the rear side of the top frame 5. During normal operation, the left fixing plate 12 and the right fixing plate 11 are fixed by the fixing bolts 13 to ensure that the arc-shaped fixing frame 10 fits tightly against the top frame 5, ensuring the airtightness of the waste gas treatment process.

[0024] Furthermore, an air inlet chamber 6 is fixedly connected to the top of the top frame 5, and a right connecting frame 7 is fixedly connected to the outer side of the other end of the connecting pipe 4. An alkaline purification seat 2 is fixedly connected to the bottom of the right connecting frame 7. The air inlet chamber 6 at the top of the top frame 5 is used to collect waste gas generated from coal chemical processes and centrally guide the waste gas into the air inlet pipe 22. The right connecting frame 7 on the outer side of the other end of the connecting pipe 4 connects the connecting pipe 4 to the alkaline purification seat 2, forming a transmission channel for waste gas from the acid purification seat 1 to the alkaline purification seat 2. The alkaline purification seat 2 contains alkaline solution, which, in conjunction with the acid purification seat 1, achieves stepwise acid-base purification of the waste gas, removing different types of pollutants from the waste gas through solutions of different properties.

[0025] Furthermore, a left activated carbon filter 17 is fixedly connected to the inner side of the acid purification base 1, and an air inlet pipe 22 passes through the interior of the left activated carbon filter 17. A left air distributor 18 is fixedly connected to the bottom end of the air inlet pipe 22. The left activated carbon filter 17 inside the acid purification base 1 can perform preliminary filtration on the exhaust gas after acid purification, adsorbing some of the residual impurities and odors. The left air distributor 18 at the bottom end of the air inlet pipe 22 disperses the exhaust gas delivered by the air inlet pipe 22 into fine bubbles, increasing the contact area between the exhaust gas and the acid in the acid purification base 1, improving the absorption efficiency of the acid in the exhaust gas for acidic pollutants, and enabling the exhaust gas to undergo sufficient primary purification.

[0026] Furthermore, a fixed pipe 20 is fixedly connected to the bottom right end of the connecting pipe 4, and a right gas distributor 19 is fixedly connected to the bottom of the fixed pipe 20. Both the left and right gas distributors 18 and the right gas distributor 19 are equipped with air nozzles 24 at their tops. The fixed pipe 20 at the bottom right end of the connecting pipe 4 introduces the waste gas purified by the acid solution into the alkaline solution purification seat 2. The right gas distributor 19 at its bottom has a similar structure to the left gas distributor 18, and the air nozzles 24 at its top disperse the waste gas into fine bubbles, increasing the contact area between the waste gas and the alkaline solution in the alkaline solution purification seat 2, and improving the absorption effect of the alkaline solution on alkaline pollutants in the waste gas. The left and right gas distributors 18 and 19, through the dispersing effect of the air nozzles 24, respectively enhance the purification efficiency of the waste gas in the acid and alkaline solutions.

[0027] Furthermore, an exhaust pipe 8 is fixedly connected to the outer side of the alkali purification base 2, and a right activated carbon filter 21 is fixedly connected to the inner side of the alkali purification base 2. The right activated carbon filter 21 is located above the right gas distributor 19, and the exhaust pipe 8 is located above the right activated carbon filter 21. A butterfly valve 9 is provided on the inner side of the exhaust pipe 8. The right activated carbon filter 21 on the inner side of the alkali purification base 2, located above the right gas distributor 19, further filters the exhaust gas purified by the alkali solution, further adsorbing residual impurities and improving the purification quality of the exhaust gas. The purified exhaust gas is discharged through the exhaust pipe 8 located above the right activated carbon filter 21. The butterfly valve 9 on the inner side of the exhaust pipe 8 can control the start and stop of the exhaust and the flow rate, making it easy to adjust the discharge speed according to the exhaust gas treatment situation, ensuring that the exhaust gas is fully purified before being discharged.

[0028] Furthermore, a fiber filter 23 is slidably connected to the inner side of the top frame 5, with the outer side of the fiber filter 23 tightly attached to the inner side of the top frame 5. The fiber filter 23 on the inner side of the top frame 5 pre-treats the exhaust gas before it enters the intake pipe 22, filtering out larger particles and impurities in the exhaust gas to prevent these impurities from entering subsequent purification stages and causing pipe blockage or affecting the purification effect. The sliding connection of the fiber filter 23 facilitates periodic removal for cleaning or replacement, ensuring its filtration performance remains good and maintaining the stable operation of the device.

[0029] Overall workflow: The waste gas generated from coal chemical production first enters the air inlet chamber 6 at the top of the top frame 5. The air inlet chamber 6 concentrates the waste gas and guides it into the air inlet pipe 22. Before the waste gas enters the air inlet pipe 22, the fiber filter 23, which is slidably connected to the inside of the top frame 5, pre-treats it, filtering out larger particles and impurities. The fiber filter 23 is also easy to clean or replace. The air inlet pipe 22 delivers the waste gas to the acid purification seat 1. The left gas distributor 18 at the bottom disperses the waste gas into fine bubbles through the top air nozzle 24, increasing the contact area with the acid in the acid purification seat 1 and improving the absorption efficiency of acidic pollutants. The waste gas after acid purification is initially filtered by the left activated carbon filter 17, which adsorbs residual impurities and odors. Subsequently, the waste gas enters the alkaline purification seat 2 through the connecting pipe 4 and the fixed pipe 20. The right gas distributor 19 at the bottom of the fixed pipe 20 also disperses the waste gas through the air nozzle 24, enhancing the contact with the alkaline solution and improving the absorption effect of alkaline pollutants. After that, it is filtered again by the right activated carbon filter 21. The purified exhaust gas is discharged through exhaust pipe 8, and the butterfly valve 9 inside exhaust pipe 8 can control the start and stop of exhaust and the flow rate. In addition, the arc-shaped fixing frame 10 on the rear side of the top frame 5 can be rotated by connecting rod 15 and fixed or separated from the top frame 5 with fixing bolt 13, which is convenient for maintenance; the left connecting frame 3 and the right connecting frame 7 respectively ensure the sealing of the connection between acid purification seat 1 and connecting pipe 4, and between connecting pipe 4 and alkaline purification seat 2, ensuring that the entire exhaust gas treatment process is efficient and stable.

[0030] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A waste gas treatment and purification device for coal chemical industry, comprising an acid purification base, characterized in that: It also includes a left connecting frame fixedly connected to the top of the acid purification seat. A connecting pipe is fixedly connected to the top of the left connecting frame. An air inlet pipe is fixedly connected inside the connecting pipe. A top frame is fixedly connected to the top of the air inlet pipe. A right support plate is fixedly connected to the side of the top frame. An arc-shaped fixing frame is provided on the rear side of the top frame. A left support plate is fixedly connected to the outer side of the arc-shaped fixing frame. A connecting rod is rotatably connected between the left and right support plates. A right fixing plate is fixedly connected to the side of the top frame. A threaded hole is provided inside the right fixing plate. A left fixing plate is fixedly connected to the outer side of the arc-shaped fixing frame. A fixing bolt is screwed into the inside of the left fixing plate. The left fixing plate is fixedly connected to the right fixing plate by the fixing bolt through the inner side of the threaded hole of the right fixing plate. A fiber filter is slidably connected to the inner side of the top frame. The outer side of the fiber filter is tightly attached to the inner side of the top frame.

2. The waste gas treatment and purification device for coal chemical industry according to claim 1, characterized in that: An air inlet chamber is fixedly connected to the top of the top frame, and a right connecting frame is fixedly connected to the outer side of the other end of the connecting pipe. An alkaline solution purification base is fixedly connected to the bottom of the right connecting frame.

3. The waste gas treatment and purification device for coal chemical industry according to claim 1, characterized in that: A left activated carbon filter is fixedly connected to the inner side of the acid purification seat, and the air inlet pipe passes through the interior of the left activated carbon filter. A left air distributor is fixedly connected to the bottom end of the air inlet pipe.

4. The waste gas treatment and purification device for coal chemical industry according to claim 3, characterized in that: A fixing pipe is fixedly connected to the bottom right end of the connecting pipe, and a right air distributor is fixedly connected to the bottom side of the fixing pipe. Air nozzles are provided on the top of both the left and right air distributors.

5. The waste gas treatment and purification device for coal chemical industry according to claim 2, characterized in that: An exhaust pipe is fixedly connected to the outer side of the alkali purification seat, and a right activated carbon filter is fixedly connected to the inner side of the alkali purification seat. The right activated carbon filter is located above the right gas distributor, and the exhaust pipe is located above the right activated carbon filter. A butterfly valve is provided on the inner side of the exhaust pipe.

Images