High-temperature waste gas treatment device
By designing a combination of a spray chamber and an activated carbon filter box in the waste gas treatment device, the problem of poor treatment effect of high-temperature waste gas was solved, and efficient waste gas absorption, purification and cooling effects were achieved.
Patent Information
- Application Number
- CN202423205449.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing waste gas treatment devices, when treating high-temperature waste gas, have separate spray towers and activated carbon adsorption tanks, resulting in a small contact area and ineffective cooling and adsorption. The separately set activated carbon adsorption tanks cannot cool down the waste gas, leading to poor treatment results for high-temperature waste gas.
Design a high-temperature waste gas treatment device, including a waste gas spraying device and a waste gas activated carbon filter box. The spraying device is equipped with first and second spraying chambers and Raschig rings, a spraying water pump and a water storage tank. Combined with the waste gas activated carbon filter box, it achieves efficient cooling and adsorption through multiple spraying and filtration.
By increasing the contact area and time between the spray water and the exhaust gas, combined with activated carbon filtration, efficient exhaust gas absorption, purification, and cooling effects are achieved. It has good wettability and corrosion resistance, and is suitable for the treatment of high-temperature acid and alkali exhaust gases.
Smart Images
Figure CN223774609U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of gas purification, specifically is a high temperature waste gas treatment device. BACKGROUND
[0002] The waste gas treatment device is a device for adsorbing and filtering waste gas to achieve the effect of purifying waste gas. The existing waste gas treatment device is usually a single body. The waste gas spray tower or the existing waste gas treatment device is usually a single body. The waste gas spray tower and the activated carbon adsorption tank are separately arranged. The activated carbon adsorption tank separately processes waste gas. Among them, the waste gas spray tower sprays waste gas once and cools and adsorbs waste gas through the built-in adsorption device. However, the water sprayed and the adsorption device have a small contact area with waste gas, which results in poor high-temperature waste gas treatment effect. When the activated carbon adsorption tank is separately arranged, although it has a larger adsorption area for waste gas, the waste gas adsorption effect is better, but it cannot cool the high-temperature waste gas, so the problem of poor high-temperature waste gas treatment effect still exists. SUMMARY
[0003] In order to overcome the defects in the prior art, the utility model embodiment provides a high-temperature waste gas treatment device, which is used to solve one or more of the above problems.
[0004] The embodiment of the application discloses a high-temperature waste gas treatment device, which comprises a waste gas spraying device, a waste gas active carbon filtering box and a waste gas inlet and a waste gas outlet.
[0005] Further, the waste gas spraying device further comprises a water storage tank at the bottom and a spraying water pipe extending in the longitudinal direction. The lower end of the spraying water pipe is located in the water storage tank and is provided with a spraying water pump. The spraying water pipe has nozzles extending into the first spraying chamber and the second spraying chamber respectively and located at the upper end.
[0006] Further, the water storage tank extends from the front of the first spray chamber and the second spray chamber to the side of the exhaust gas spraying device, and the spraying pipe extends from the water storage tank to the outside of the first spray chamber and the second spray chamber in the longitudinal direction and extends into the first spray chamber and the second spray chamber in the transverse direction respectively.
[0007] Further, the air inlet is located between the first spray chamber and the water storage tank in the longitudinal direction, and the air inlet has a guide pipe gradually downward in the exhaust gas spraying device.
[0008] Further, the first spray chamber and the second spray chamber and the exhaust gas spraying device side wall between the first spray chamber and the water storage tank, the air outlet and the second spray chamber, and the air outlet and the second spray chamber are all provided with windows.
[0009] Further, the transverse cross-sectional area of the exhaust gas spraying device above the second spray chamber gradually decreases upward, and the transverse cross-sectional area of the exhaust gas spraying device at the air outlet is the smallest, and the exhaust gas spraying device is filled with hollow beads inside the second spray chamber and the air outlet.
[0010] Further, the exhaust gas activated carbon filter box extends in the transverse direction, and the exhaust gas activated carbon filter box has a square tube base below it in the extension direction for supporting the exhaust gas activated carbon filter box.
[0011] Further, the first spray chamber and the second spray chamber have a circular transverse cross-sectional shape, and the exhaust gas activated carbon filter box has a rectangular longitudinal cross-sectional shape.
[0012] Further, the exhaust gas activated carbon filter box gradually reduces the longitudinal cross-sectional area from the inside of the end portion.
[0013] The beneficial effects of the utility model are as follows:
[0014] Through the cooperation of the first spray chamber and the second spray chamber, the water for spraying and the contact area and time of the Rasai ring and the exhaust gas are increased, so that the exhaust gas spraying device has a larger specific surface area, a higher void ratio, and good wettability and corrosion resistance during the adsorption and spraying process in the exhaust gas spraying device. Combined with the filtering effect of the exhaust gas activated carbon filter box on the exhaust gas, the three functions of absorption, purification, cooling and adsorption are realized, which can effectively purify and adsorb the acid-base high-temperature exhaust gas.
[0015] In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the exhaust gas spraying device in the embodiment of this utility model from a first perspective.
[0018] Figure 2 This is a schematic diagram of the exhaust gas spraying device in the embodiment of this utility model from a second perspective.
[0019] Figure 3 This is a schematic diagram of the activated carbon filter box for waste gas in an embodiment of this utility model from a first-view perspective;
[0020] Figure 4 This is a schematic diagram of the activated carbon filter box for waste gas in an embodiment of this utility model from a second perspective.
[0021] Figure 5 This is a schematic diagram of the activated carbon filter box for waste gas in an embodiment of this utility model from a third-person perspective;
[0022] The reference numerals in the above figures are as follows: 1. Exhaust gas spraying device; 11. First spraying chamber; 12. Second spraying chamber; 13. Nozzle; 14. Raschig ring; 15. Exhaust gas inlet; 16. Exhaust gas outlet; 17. Water storage tank; 18. Spraying water pipe; 19. Spraying water pump; 110. Viewing window; 111. Hollow bead; 2. Exhaust gas activated carbon filter box; 21. Filter inlet; 22. Filter outlet; 23. Primary filter screen; 24. Honeycomb activated carbon; 25. Square tube base. Detailed Implementation
[0023] 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.
[0024] like Figures 1 to 5 As shown, a high-temperature waste gas treatment device according to this embodiment includes:
[0025] The exhaust gas spraying device 1 has a first spraying chamber 11 and a second spraying chamber 12 which are communicated with each other in sequence along the longitudinal direction, the top of the first spraying chamber 11 and the second spraying chamber 12 are provided with nozzles 13 for downward spraying, the nozzles 13 in the first spraying chamber 11 and the second spraying chamber 12 are used to spray water into the respective chambers to achieve the cooling effect on the exhaust gas, so that the temperature of the high-temperature exhaust gas can be reduced, the cooperation of the first spraying chamber 11 and the second spraying chamber 12 can increase the contact area of the water for cooling and the exhaust gas through two spraying, thereby achieving better exhaust gas cooling effect, at the same time, the liquid droplet adsorption effect on the exhaust gas can also be achieved. The first spraying chamber 11 and the second spraying chamber 12 are both filled with a Rasai ring 14 located below the nozzle 13, so that the impurities in the exhaust gas can be filtered and adsorbed through the Rasai ring 14 filler filter, and the first spraying chamber 11 and the second spraying chamber 12 are both filled with the Rasai ring 14, so that the contact area of the Rasai ring 14 and the exhaust gas is increased, and the filtering and adsorption efficiency of the exhaust gas is improved. The side wall of the lower end of the first spraying chamber 11 of the exhaust gas spraying device 1 is provided with an exhaust gas inlet 15, and the top of the exhaust gas spraying device 1 is provided with an exhaust gas outlet 16, wherein the exhaust gas inlet 15 is used to pass the exhaust gas into the exhaust gas spraying device 1, then the exhaust gas moves upward in the exhaust gas spraying device 1 and is discharged from the exhaust gas spraying device 1 through the exhaust gas outlet 16 after the spraying and adsorption in the first spraying chamber 11 and the second spraying chamber 12.
[0026] The waste gas activated carbon filter box 2 has a filter inlet 21 and a filter outlet 22 at both ends. The filter inlet 21 is connected to the waste gas outlet 16. The waste gas activated carbon filter box 2 contains a pre-filter 23 and honeycomb activated carbon 24. Preferably, the tank of the waste gas activated carbon filter box 2 can be welded from SUS304 material. Of course, in other optional embodiments, the tank of the waste gas activated carbon filter box 2 can be made of other selectable materials. The pre-filter 23 is made of stainless steel, and the honeycomb activated carbon 24 has advantages such as large specific surface area, low pore resistance, well-developed micropores, high adsorption capacity, and long service life. This allows the exhaust gas flowing from the exhaust gas spray device 1 to enter the activated carbon filter box 2 through the filter inlet 21. During its flow through the activated carbon filter box 2, the exhaust gas is filtered by the primary filter screen 23 and the honeycomb activated carbon 24. The filtered exhaust gas is then discharged from the activated carbon filter box 2 through the filter outlet 22, thus achieving effective filtration of the exhaust gas. Preferably, the first spray chamber 11 and the second spray chamber 12 have a circular cross-sectional shape, and the activated carbon filter box 2 has a rectangular cross-sectional shape.
[0027] In this embodiment, the exhaust gas enters the exhaust gas spray device 1 through the exhaust gas inlet 15, and then passes through the first spray chamber 11 and the second spray chamber 12 in sequence. When passing through the first spray chamber 11, the exhaust gas is filtered for the first time by the Raschig ring 14 packing material, and the nozzle 13 also sprays and cools the exhaust gas for the first time to adsorb droplets. Similarly, when passing through the second spray chamber 12, the exhaust gas is filtered for the second time by the Raschig ring 14 packing material, and the nozzle 13 also sprays and cools the exhaust gas for the second time to adsorb droplets. After the above steps, the exhaust gas flows out of the exhaust gas spray device 1 through the exhaust gas outlet 16, and then flows into the exhaust gas activated carbon filter box 2 through the filter inlet 21. After being filtered by the primary filter screen 23, it is adsorbed by the honeycomb activated carbon 24. Finally, the exhaust gas that has undergone adsorption, spraying and filtration flows out of the exhaust gas activated carbon filter box 2 through the filter outlet 22 to complete the efficient filtration of the exhaust gas.
[0028] Through the above structure, the cooperation of the first spray chamber 11 and the second spray chamber 12 increases the contact area and time between the water used for spraying and the Raschig ring 14 and the exhaust gas. This results in the exhaust gas spraying device 1 having a large specific surface area, high porosity, good wettability and corrosion resistance during the adsorption and spraying process inside the exhaust gas spraying device 1. Combined with the filtration effect of the exhaust gas activated carbon filter box 2, it has three major functions: absorption and purification, cooling and adsorption, which can effectively purify and adsorb acid, alkali and high temperature exhaust gases.
[0029] Specifically, the exhaust gas spraying device 1 also includes a water storage tank 17 located at the bottom and a spray water pipe 18 extending longitudinally. The lower end of the spray water pipe 18 is located inside the water storage tank 17 and is equipped with a spray water pump 19. The spray water pump 19 is used to transport water from the water storage tank 17 to the entire spray water pipe 18. The spray water pipe 18 has nozzles 13 that extend into the first spray chamber 11 and the second spray chamber 12 respectively and are located at the upper end, so that water is sprayed into the entire first spray chamber 11 or the second spray chamber 12 through the nozzles 13 in the first spray chamber 11 and the second spray chamber 12. Then the sprayed water falls back into the water storage tank 17, thereby realizing the recycling of water.
[0030] Specifically, the water storage tank 17 extends from directly below the first spray chamber 11 and the second spray chamber 12 to the side of the exhaust gas spraying device 1. The spray water pipe 18 extends longitudinally from the water storage tank 17 outside the first spray chamber 11 and the second spray chamber 12 and laterally into the first spray chamber 11 and the second spray chamber 12, respectively. This ensures that a portion of the spray water pipe 18 is located outside the first spray chamber 11 and the second spray chamber 12, thereby preventing the spray water pipe 18 from affecting the water after spraying and falling into the water storage tank.
[0031] Specifically, the air inlet is located longitudinally between the first spray chamber 11 and the water storage tank 17, and the air inlet has a guide pipe that gradually descends inside the exhaust gas spray device 1. This allows the exhaust gas entering the exhaust gas spray device 1 through the air inlet to enter the interior of the exhaust gas spray device 1 under the guidance of the guide pipe, and then sequentially pass through the first spray chamber 11 and the second spray chamber 12.
[0032] Specifically, the exhaust gas spraying device 1 has viewing windows 110 on the side walls between the first spray chamber 11 and the water storage tank 17, between the air outlet and the second spray chamber 12, and between the first spray chamber 11 and the second spray chamber 12 and between the air outlet and the second spray chamber 12. The viewing windows 110 are used to observe the overall environment inside the exhaust gas spraying device 1.
[0033] Specifically, the cross-sectional area of the exhaust gas spray device 1 located above the second spray chamber 12 gradually decreases upwards, and the cross-sectional area of the exhaust gas spray device 1 at the air outlet is the smallest. The exhaust gas spray device 1 between the second spray chamber 12 and the air outlet is filled with hollow beads 111, so that the exhaust gas at the air outlet can have a faster flow rate, thereby improving the efficiency of exhaust gas discharge from the exhaust gas spray device 1.
[0034] Specifically, the waste gas activated carbon filter box 2 extends laterally, and a square tube base 25 for supporting the waste gas activated carbon filter box 2 is provided below it along its extending direction, thereby making the entire waste gas activated carbon filter box 2 have good stability when placed.
[0035] Specifically, the longitudinal cross-sectional area of the exhaust gas activated carbon filter box 2 gradually decreases from its end inward, thereby allowing the exhaust gas to have a large contact area with the primary filter screen 23 and the honeycomb activated carbon 24, and to have a high flow rate during the flow at both ends.
[0036] This utility model uses specific embodiments to illustrate the principle and implementation of the utility model. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of the utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of the utility model. Therefore, the content of this specification should not be construed as a limitation of the utility model.
Claims
1. A high-temperature waste gas treatment device, characterized in that, include: An exhaust gas spraying device has a first spraying chamber and a second spraying chamber that are interconnected along the longitudinal direction. The top of the first spraying chamber and the second spraying chamber are both provided with nozzles for downward spraying. The interior of the first spraying chamber and the second spraying chamber are both filled with Raschig rings located below the nozzles. The exhaust gas spraying device has an exhaust gas inlet on the side wall at the lower end of the first spraying chamber and an exhaust gas outlet on the top of the exhaust gas spraying device. An activated carbon filter box for exhaust gas has a filter inlet and a filter outlet at both ends, the filter inlet being connected to the exhaust gas outlet, and the interior of the activated carbon filter box contains a pre-filter and honeycomb activated carbon.
2. The high-temperature waste gas treatment device according to claim 1, characterized in that, The exhaust gas spraying device also includes a water storage tank at the bottom and a spray water pipe extending longitudinally. The lower end of the spray water pipe is located in the water storage tank and is equipped with a spray water pump. The spray water pipe has nozzles that extend into the first spray chamber and the second spray chamber respectively and are located at the upper end.
3. The high-temperature waste gas treatment device according to claim 2, characterized in that, The water storage tank extends from directly below the first spray chamber and the second spray chamber to the side of the exhaust gas spraying device. The spray water pipe extends longitudinally from the water storage tank outside the first spray chamber and the second spray chamber and extends laterally into the first spray chamber and the second spray chamber, respectively.
4. The high-temperature waste gas treatment device according to claim 3, characterized in that, The air inlet is located longitudinally between the first spray chamber and the water storage tank, and the air inlet has a guide pipe that gradually descends inside the exhaust gas spray device.
5. The high-temperature waste gas treatment device according to claim 4, characterized in that, The exhaust gas spraying device has viewing windows on its side walls between the first spray chamber and the water storage tank, between the air outlet and the second spray chamber, and between the first spray chamber, the second spray chamber, and the air outlet and the second spray chamber.
6. The high-temperature waste gas treatment device according to claim 1, characterized in that, The cross-sectional area of the exhaust gas spray device located above the second spray chamber gradually decreases upwards, and the cross-sectional area of the exhaust gas spray device at the air outlet is the smallest. The interior of the exhaust gas spray device between the second spray chamber and the air outlet is filled with hollow beads.
7. The high-temperature waste gas treatment device according to claim 1, characterized in that, The waste gas activated carbon filter box extends laterally, and a square tube base for supporting the waste gas activated carbon filter box is located below it along its extending direction.
8. The high-temperature waste gas treatment device according to claim 1, characterized in that, The first spray chamber and the second spray chamber have a circular cross-sectional shape, and the exhaust gas activated carbon filter box has a rectangular cross-sectional shape.
9. A high-temperature waste gas treatment device according to claim 8, characterized in that, The longitudinal cross-sectional area of the activated carbon filter box for waste gas gradually decreases from its end inwards.