Tail gas treatment device for chemical product production

Abstract

The utility model discloses a tail gas treatment device for chemical product production, and relates to the technical field of chemical or biological purification of waste gas. A tail gas treatment device for chemical product production comprises a chemical tail gas purification box, a sewage filtering structure is located on the chemical tail gas purification box, and the sewage filtering structure comprises a circulating filtering box, a driving motor, a belt, a mounting plate, a sewage filtering plate, two rotating shafts and two cleaning scraping plates. Through cooperation of a circulating filter box, a belt, a rotating shaft, a cleaning scraper plate and a sewage filter plate, the sewage filter plate can filter sludge in a purified liquid, through arrangement of the U-shaped filter plate, the contact area between sewage and the sewage filter plate can be increased, the filtering effect on the purified liquid is improved, and the service life of the purified liquid is prolonged. In addition, sludge at the bottom of the sewage filter plate can be cleaned by a cleaning scraper, so that the sludge is prevented from blocking an inlet of the sewage filter plate, and the purification effect of the purification liquid during recycling is further improved.

Description

Technical Field

[0001] This utility model relates to the field of chemical or biological purification technology of waste gas, and in particular to a tail gas treatment device for chemical product production. Background Technology

[0002] Chemical waste gas often contains various pollutants, polluting the environment and affecting human health. Therefore, chemical waste gas needs to be treated before emission to prevent atmospheric pollution. Chinese utility model patent, authorization announcement number "CN219647160U", discloses a tail gas treatment device for chemical product production. In operation, by setting up a diversion pipe, a gas distribution plate, a circular chamber, an exhaust channel, and a honeycomb-shaped diversion plate, the device can disperse the gas discharged from the exhaust pipe into multiple microbubbles. During the discharge process, the reaction force drives the gas distribution plate to rotate, thereby ensuring sufficient contact between the tail gas and the purification liquid, improving the treatment effect. By setting up guide plates one and two, composed of a main body, a strip mesh plate, and several dividing blades, the tail gas rises in an S-shape between guide plates one and two, slowing down the exhaust speed and increasing the contact time between the tail gas and the purification liquid. Simultaneously, it can perform secondary separation of the tail gas to form multiple bubbles, further improving the tail gas treatment effect.

[0003] During the use of the above-mentioned technical solution, the purification liquid comes into contact with the exhaust gas and forms wastewater that falls to the bottom of the treatment tank. The treatment tank is equipped with a circulation structure to facilitate the recycling of the purification liquid. However, the wastewater is not filtered when the circulating liquid is used, which reduces the purification effect on the exhaust gas when the wastewater is sprayed out. Therefore, we propose an exhaust gas treatment device for chemical product production. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a tail gas treatment device for chemical product production. This device can solve the problem that the purification liquid comes into contact with the tail gas and forms wastewater that falls to the bottom of the treatment tank. The treatment tank is equipped with a circulation structure to facilitate the recycling of the purification liquid. However, when the circulating liquid is used, the extracted wastewater is not filtered, which reduces the purification effect on the tail gas when the wastewater is sprayed out.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tail gas treatment device for chemical product production, comprising:

[0006] Chemical exhaust gas purification box, the top of the chemical exhaust gas purification box is fixedly installed with a top cover;

[0007] Wastewater filtration structure, located on the chemical exhaust gas purification box;

[0008] The wastewater filtration structure includes a circulating filter box, a drive motor, a belt, a mounting plate, a wastewater filter plate, two rotating shafts, and two cleaning scrapers. The circulating filter box is fixedly connected to one side of the chemical exhaust gas purification box and is internally connected to the chemical exhaust gas purification box. A replacement slot is provided on the top of the circulating filter box, and the wastewater filter plate is slidably installed inside the replacement slot. A sealing plate is bolted to the top of the circulating filter box. Both rotating shafts are rotatably connected to the inner bottom wall of the circulating filter box. Both cleaning scrapers are fixedly connected to the top of the corresponding rotating shafts, and both cleaning scrapers are in contact with the bottom of the wastewater filter plate. Both rotating shafts extend to the bottom of the circulating filter box. The belt drive is sleeved on the outer surface of the two rotating shafts. The mounting plate is fixedly connected to the bottom of the circulating filter box. The drive motor is fixedly installed on the bottom of the mounting plate, and the output end of the drive motor rotates through the mounting plate and is fixedly connected to the corresponding rotating shaft.

[0009] Preferably, the wastewater filtration structure further includes a water pump, a connecting water pipe, a water supply pipe, two first spray square tubes, and a spray box. The water pump is fixedly installed on the top of the circulating filter box, and the pumping end of the water pump extends into the interior of the circulating filter box. The outlet end of the water pump is fixedly connected to the connecting water pipe. The two first spray square tubes and the spray box are both fixedly installed inside the chemical exhaust gas purification box. Each of the two first spray square tubes and the spray box is equipped with multiple nozzles. The two first spray square tubes and the spray box are connected to the interior of the connecting water pipe through pipes. The water supply pipe is fixedly connected to the outer surface of the connecting water pipe and is connected to the interior of the connecting water pipe.

[0010] Preferably, the chemical exhaust gas purification box has three guide plates fixedly connected inside, and all three guide plates are set in an inclined state.

[0011] Preferably, an activated carbon filter plate is fixedly installed inside the chemical exhaust gas purification box, and the activated carbon filter plate is located above the water spray box.

[0012] Preferably, a tail gas inlet pipe is fixedly installed on one side of the chemical tail gas purification box, one end of which extends into the interior of the chemical tail gas purification box, and two outlet nozzles are fixedly connected to the outer surface of the tail gas inlet pipe.

[0013] Preferably, the wastewater filter plate has a "U" shaped structure.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This tail gas treatment device for chemical product production, through the cooperation of a circulating filter box, belt, rotating shaft, cleaning scraper, and sewage filter plate, enables the sewage filter plate to filter the sludge in the purification liquid. The "U"-shaped filter plate increases the contact area between the sewage and the sewage filter plate, thereby improving the filtration effect of the purification liquid. Furthermore, the cleaning scraper can clean the sludge on the bottom of the sewage filter plate, preventing sludge from clogging the inlet of the sewage filter plate, thus improving the purification effect of the purification liquid during recycling. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the bottom structure of the circulating filter box of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the chemical exhaust gas purification box of this utility model.

[0020] Figure 4 This is a schematic cross-sectional view of the circulating filter box of this utility model.

[0021] Attached reference numerals: 1. Chemical exhaust gas purification box; 2. Circulating filter box; 3. Water pump; 4. Water supply pipe; 5. Connecting water pipe; 6. Exhaust gas inlet pipe; 7. Top cover; 8. Belt; 9. Drive motor; 10. Air outlet; 11. Guide plate; 12. First spray square tube; 13. Spray box; 14. Activated carbon filter plate; 15. Replacement tank; 16. Wastewater filter plate; 17. Rotating shaft; 18. Cleaning scraper; 19. Mounting plate. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] Please see Figure 1-4 This utility model provides a technical solution: a tail gas treatment device for chemical product production, comprising:

[0027] Chemical exhaust gas purification box 1, with a top cover 7 fixedly installed on the top of the chemical exhaust gas purification box 1;

[0028] Wastewater filtration structure, located on chemical exhaust gas purification box 1;

[0029] The wastewater filtration structure includes a circulating filter box 2, a drive motor 9, a belt 8, a mounting plate 19, a wastewater filter plate 16, two rotating shafts 17, and two cleaning scrapers 18. The circulating filter box 2 is fixedly connected to one side of the chemical exhaust gas purification box 1 and communicates with the interior of the chemical exhaust gas purification box 1. A replacement slot 15 is provided on the top of the circulating filter box 2, and the wastewater filter plate 16 is slidably installed inside the replacement slot 15. A sealing plate is bolted to the top of the circulating filter box 2. Both rotating shafts 17 are rotatably connected to the inner bottom wall of the circulating filter box 2. Both cleaning scrapers 18 are fixedly connected to the top of the corresponding rotating shafts 17 and contact the bottom of the wastewater filter plate 16. Both rotating shafts 17 extend rotatably to the bottom of the circulating filter box 2. The belt 8 is driven and sleeved on the outer surface of the two rotating shafts 17. The mounting plate 19 is fixedly connected to the bottom of the circulating filter box 2. The drive motor 9 is fixedly installed on the bottom of the mounting plate 19, and the output end of the drive motor 9 rotates through the mounting plate 19 and is fixedly connected to the corresponding rotating shaft 17.

[0030] The wastewater filter plate 16 has a "U" shaped structure.

[0031] The wastewater filtration structure also includes a water pump 3, a connecting water pipe 5, a water supply pipe 4, two first spray square tubes 12, and a spray box 13. The water pump 3 is fixedly installed on the top of the circulating filter box 2. The water pump 3's pumping end extends into the interior of the circulating filter box 2. The water pump 3's outlet end is fixedly connected to the connecting water pipe 5. The two first spray square tubes 12 and the spray box 13 are all fixedly installed inside the chemical exhaust gas purification box 1. The two first spray square tubes 12 and the spray box 13 are each equipped with multiple nozzles. The two first spray square tubes 12 and the spray box 13 are all connected to the interior of the connecting water pipe 5 through pipes. The water supply pipe 4 is fixedly connected to the outer surface of the connecting water pipe 5 and is connected to the interior of the connecting water pipe 5.

[0032] Three guide plates 11 are fixedly connected inside the chemical exhaust gas purification box 1. All three guide plates 11 are set in an inclined state. An activated carbon filter plate 14 is fixedly installed inside the chemical exhaust gas purification box 1. The activated carbon filter plate 14 is located above the water spray box 13. An exhaust gas inlet pipe 6 is fixedly installed on one side of the chemical exhaust gas purification box 1. One end of the exhaust gas inlet pipe 6 extends into the interior of the chemical exhaust gas purification box 1. Two air outlets 10 are fixedly connected to the outer surface of the exhaust gas inlet pipe 6.

[0033] Furthermore, when using the device, open the valve on the exhaust gas inlet pipe 6, and the exhaust gas generated by the chemical industry is discharged into the chemical exhaust gas purification box 1 through the exhaust gas inlet pipe 6, so that the two exhaust nozzles 10 discharge the exhaust gas. Open the valve on the water supply pipe 4, so that the water supply pipe 4 can discharge the external purification liquid into the two first spray square pipes 12 and the spray box 13 through the connecting water pipe 5, thereby facilitating the purification and filtration of the exhaust gas in the chemical exhaust gas purification box 1 by the two first spray square pipes 12 and the spray box 13. By setting three guide plates 11, the contact between the exhaust gas and the purification liquid is increased, so that the purified and filtered exhaust gas will be discharged under the adsorption and filtration of the activated carbon filter plate 14. When the amount of purification liquid that can be recycled is discharged, close the valve on the water supply pipe 4, so that the purification liquid in the chemical exhaust gas purification box 1 will be discharged into the circulating filter box 2.

[0034] Furthermore, when using this device, the water pump 3 is started by connecting an external power source. The water pump 3 will circulate the purified liquid after filtration in the circulating filter box 2 into the two first spray square pipes 12 and the spray box 13. When the purified liquid in the circulating filter box 2 is extracted, the sewage filter plate 16 will filter the sludge in the purified liquid. The "U"-shaped filter plate increases the contact length between the sewage and the sewage filter plate 16, thereby improving the filtration effect of the purified liquid. The drive motor 9 is started by connecting an external power source. Pulleys are fixedly sleeved on the outer surfaces of the two rotating shafts 17, so that the drive motor 9 can drive the corresponding rotating shafts 17 to rotate. Under the synchronous transmission of the belt 8, the two rotating shafts 17 can simultaneously drive the corresponding cleaning scrapers 18 to rotate, which facilitates the cleaning of the sludge on the bottom of the sewage filter plate 16 and prevents the sludge from clogging the inlet of the sewage filter plate 16.

[0035] With the cooperation of the circulating filter box 2, belt 8, rotating shaft 17, cleaning scraper 18 and sewage filter plate 16, the sewage filter plate 16 filters the sludge in the purification liquid. The "U"-shaped filter plate increases the contact area between the sewage and the sewage filter plate 16, thereby improving the filtration effect of the purification liquid. The cleaning scraper 18 can clean the sludge on the bottom of the sewage filter plate 16, preventing sludge from clogging the inlet of the sewage filter plate 16, thus improving the purification effect of the purification liquid during circulation.

[0036] Working principle: By connecting to an external power source and starting the water pump 3, the water pump 3 will circulate the purified liquid after filtration in the circulating filter box 2 into the two first spray square pipes 12 and the spray box 13. When the purified liquid in the circulating filter box 2 is extracted, the sewage filter plate 16 will filter the sludge in the purified liquid. The "U"-shaped filter plate increases the contact length between the sewage and the sewage filter plate 16, thereby improving the filtration effect of the purified liquid. By connecting to an external power source and starting the drive motor 9, pulleys are fixedly sleeved on the outer surface of the two rotating shafts 17, so that the drive motor 9 can drive the corresponding rotating shafts 17 to rotate. Under the synchronous transmission of the belt 8, the two rotating shafts 17 can simultaneously drive the corresponding cleaning scrapers 18 to rotate, which facilitates the cleaning of the sludge on the bottom of the sewage filter plate 16 and prevents the sludge from clogging the inlet of the sewage filter plate 16.

[0037] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A tail gas treatment device for chemical product production, characterized in that, include: Chemical exhaust gas purification box (1), with a top cover (7) fixedly installed on the top of the chemical exhaust gas purification box (1); Wastewater filtration structure, the wastewater filtration structure is located on the chemical exhaust gas purification box (1); The wastewater filtration structure includes a circulating filter box (2), a drive motor (9), a belt (8), a mounting plate (19), a wastewater filter plate (16), two rotating shafts (17) and two cleaning scrapers (18). The circulating filter box (2) is fixedly connected to one side of the chemical exhaust gas purification box (1), and the circulating filter box (2) is connected to the interior of the chemical exhaust gas purification box (1). The top of the circulating filter box (2) is provided with a replacement slot (15), the sewage filter plate (16) is slidably installed inside the replacement slot (15), the top of the circulating filter box (2) is bolted with a sealing plate, and the two rotating shafts (17) are rotatably connected to the inner bottom wall of the circulating filter box (2). Among them, the two cleaning scrapers (18) are fixedly connected to the top of the corresponding rotating shaft (17), the two cleaning scrapers (18) are in contact with the bottom of the sewage filter plate (16), the two rotating shafts (17) are rotated and extended to the bottom of the circulating filter box (2), and the belt (8) is driven and sleeved on the outer surface of the two rotating shafts (17). The mounting plate (19) is fixedly connected to the bottom of the circulating filter box (2), and the drive motor (9) is fixedly installed on the bottom of the mounting plate (19). The output end of the drive motor (9) rotates through the mounting plate (19) and is fixedly connected to the corresponding rotating shaft (17).

2. The tail gas treatment device for chemical product production according to claim 1, characterized in that: The wastewater filtration structure also includes a water pump (3), a connecting water pipe (5), a water supply pipe (4), two first spray square pipes (12), and a spray box (13); Among them, the water pump (3) is fixedly installed on the top of the circulating filter box (2), the water pump (3) extends into the interior of the circulating filter box (2), the water pump (3) is fixedly connected to the water pipe (5), and the two first spray square pipes (12) and the spray box (13) are fixedly installed inside the chemical exhaust gas purification box (1). Each of the two first spray square tubes (12) and the water spray box (13) is equipped with multiple nozzles. Both the two first spray square tubes (12) and the water spray box (13) are connected to the interior of the connecting water pipe (5) through pipes. The water supply pipe (4) is fixedly connected to the outer surface of the connecting water pipe (5) and is connected to the interior of the connecting water pipe (5).

3. The tail gas treatment device for chemical product production according to claim 1, characterized in that: The chemical exhaust gas purification box (1) is internally fixedly connected to three guide plates (11), all of which are set to an inclined state.

4. The tail gas treatment device for chemical product production according to claim 1, characterized in that: The chemical exhaust gas purification box (1) is internally fixedly equipped with an activated carbon filter plate (14), which is located above the water spray box (13).

5. The tail gas treatment device for chemical product production according to claim 1, characterized in that: A tail gas inlet pipe (6) is fixedly installed on one side of the chemical tail gas purification box (1). One end of the tail gas inlet pipe (6) extends into the interior of the chemical tail gas purification box (1), and two outlet nozzles (10) are fixedly connected to the outer surface of the tail gas inlet pipe (6).

6. The tail gas treatment device for chemical product production according to claim 1, characterized in that: The wastewater filter plate (16) has a "U" shaped structure.

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