Spraying type chemical production tail gas recovery adsorption tower

Abstract

The invention belongs to the technical field of tail gas recovery, and particularly relates to a spraying type chemical production tail gas recovery adsorption tower. Comprising a tower body, and a plurality of supporting frames are installed around the tower body; a spraying adsorption mechanism is arranged in the tower body; the spraying adsorption mechanism comprises a liquid accumulation cylinder which is fixedly connected to the inner bottom of the tower body; an opening of the liquid accumulation cylinder faces the top of the tower body; an automatic control speed adjusting device is arranged on the liquid accumulation cylinder; the self-control speed adjusting device comprises a main filter plate which is slidably connected into the liquid accumulation cylinder, and the main filter plate and the liquid accumulation cylinder are arranged in a matched manner; a pressure applying and material scraping assembly is arranged in the tower body; the pressing and scraping assembly comprises a scraper which is arranged on one side, close to the top of the tower body, of the main filter plate and is in contact with the main filter plate; the top edge of the inner side of the liquid accumulation cylinder is chamfered; the influence on the liquid discharge speed of waste liquid due to fixed volume of the liquid accumulation area is avoided, so that not only is the spraying circulation efficiency improved, but also the limitation of the adsorption tower in use is reduced.

Description

Technical Field

[0001] This invention belongs to the field of tail gas recovery technology, specifically a spray-type chemical production tail gas recovery adsorption tower. Background Technology

[0002] Chemical production processes generate exhaust gases, which are typically sent to adsorption towers for treatment. Adsorption towers, as environmental protection equipment for recovering useful components or removing pollutants from exhaust gases, operate on the principle of uniformly spraying adsorbent (usually a liquid, such as a specific solvent or absorbent liquid) into the tower via a spraying device, ensuring full contact between the exhaust gas and the adsorbent. During this process, through adsorption and absorption, target substances in the exhaust gas (such as volatile organic compounds and harmful gases) are effectively captured, ultimately achieving purification of the exhaust gas or recovery of useful components.

[0003] The sprayed liquid falls into the liquid accumulation zone at the bottom of the tower. This zone is used to collect the waste liquid that has absorbed the target substance. This waste liquid is discharged through the drain port for subsequent treatment or recycling. However, there is a problem with the existing spray-type chemical production tail gas recovery adsorption tower: the volume of the liquid accumulation zone cannot be flexibly adjusted according to different needs and conditions. When the tail gas treatment volume is small or the pollutant concentration is low, the required amount of spray liquid is small. If the volume of the liquid accumulation zone is fixed and too large, it will reduce the discharge rate and cause the spray circulation efficiency to decrease. This makes the use of the adsorption tower quite limited. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a spray-type chemical production tail gas recovery adsorption tower, which effectively solves the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a spray-type chemical production tail gas recovery adsorption tower, comprising a tower body with several support frames installed around it; a spray adsorption mechanism is provided inside the tower body, which is used to purify the tail gas from chemical production and recover useful components from the tail gas; the spray adsorption mechanism includes a liquid collection cylinder, which is fixedly connected to the bottom of the tower body; the opening of the liquid collection cylinder faces the top of the tower body; an automatic speed control device is provided on the liquid collection cylinder, which is used to control the discharge efficiency of the liquid; the automatic speed control device includes a main filter plate, which is slidably connected inside the liquid collection cylinder, and the two are fitted together; a pressure scraping assembly is provided inside the tower body, which is used to prevent the main filter plate from clogging; the pressure scraping assembly includes a scraper, which is disposed on the side of the main filter plate near the top of the tower body, and the two are in contact; the top edge of the inner side of the liquid collection cylinder is chamfered.

[0006] Preferably, it includes a fixing base, which is fixedly connected to the bottom of the tower body; a through-type regulating screw is installed on the fixing base, and the two are rotatably connected; a fixing groove is provided at the end of the regulating screw near the tower body; A retaining threaded block is threadedly connected to an adjusting screw; several retaining cross plates are installed on the retaining threaded block. A drive motor is installed at the bottom of the tower body, and its output end is fitted into the fixed slot.

[0007] Preferably, it includes an auxiliary filter plate, which is fitted into the liquid collection cylinder and the two are slidably engaged; the auxiliary filter plate is located at the bottom of the main filter plate; A stationary cylinder has one end fixedly connected to a stationary horizontal plate, and the other end penetrating through and connecting to the bottom of the tower body and the bottom of the liquid collection cylinder and being fixedly connected to the auxiliary filter plate; the stationary cylinder slides in conjunction with the tower body and the liquid collection cylinder; the auxiliary filter plate is also provided with a storage cavity, and the two are coaxial.

[0008] Preferably, it includes a water collection container; the water collection container is fixedly connected to the tower body near its top; a plurality of spray heads are installed on the side of the water collection container near the liquid collection cylinder; the spray heads face the liquid collection cylinder; the spray heads and the water collection container are connected.

[0009] Preferably, the auxiliary filter plate has a rotating ring on the side near the main filter plate, and the two are coaxial; the main filter plate has a rotating groove on the side near the rotating ring that fits into it; the rotating groove and the rotating ring are rotatably engaged; the main filter plate has a rotating slot on the side near the auxiliary filter plate; a rotating motor is installed in the storage cavity, and its output end passes through a bearing on the auxiliary filter plate and fits into the rotating slot; the filter holes on the auxiliary filter plate and the main filter plate are aligned in the initial position.

[0010] Preferably, two T-shaped bases are symmetrically connected on the side of the scraper away from the main filter plate. Guide cylinders are fixedly installed on the T-shaped bases, and the two guide cylinders are slidably connected to the guide bases. The two sides of the guide bases are fixedly connected to the inner wall of the tower body.

[0011] Preferably, a guide spring is fitted on the guide cylinder, with one end of the guide spring fixedly connected to the guide base and the other end fixedly connected to the scraper.

[0012] Preferably, guide connecting frames are installed on the opposite surfaces of the two T-shaped bases, and the two guide connecting frames are connected to a material storage and suction box; a square suction nozzle is provided on one side of the material storage and suction box, and several spray heads are provided on the other side; a grid circular plate is provided inside the spray head; the port of the square suction nozzle is located on the side of the scraper and faces the top of the main filter plate; the output end of the spray head faces the top of the main filter plate.

[0013] Preferably, the T-shaped base is provided with a locking and engaging unit; the locking and engaging unit includes a locking cylinder; the locking cylinder is fixedly connected to the side of the T-shaped base; a locking cross plate is slidably connected to the locking cylinder, and a locking insert is fixedly installed on the side of the locking cross plate near the T-shaped base; a locking spring is sleeved on the locking cylinder, one end of the locking spring is fixedly connected to the locking cross plate, and the other end is fixedly connected to a locking limiting plate, which is fixedly connected to the end of the locking cylinder away from the T-shaped base.

[0014] Preferably, the scraper has a locking groove on the side away from the main filter plate; the T-shaped base has a locking slide plate on the side near the scraper; the locking slide plate slides in conjunction with the locking groove; the locking slide plate has a through locking slot on the side near the locking cross plate; the locking insert passes through the side of the scraper and connects to the locking slot.

[0015] As can be seen from the above, the spray-type chemical production tail gas recovery adsorption tower provided by the present invention has the effect of flexibly adjusting the volume of the liquid accumulation zone according to different usage requirements or treatment conditions, avoiding the impact of the waste liquid discharge rate caused by the fixed volume of the liquid accumulation zone, thereby not only improving the spray circulation efficiency, but also reducing the limitations of the adsorption tower in use. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0017] In the attached diagram: Figure 1 This is one of the overall structural schematic diagrams of the present invention; Figure 2 This is a schematic diagram of the control screw structure of the present invention; Figure 3 This is a cross-sectional view of the tower body of the present invention; Figure 4 This is a cross-sectional view of the main filter plate of the present invention; Figure 5 This is an exploded cross-sectional view of the retaining groove of the present invention; Figure 6 This is the second schematic diagram of the overall structure of the present invention; Figure 7 This is a schematic diagram of the liquid collection cylinder structure of the present invention; Figure 8 This is an exploded cross-sectional view of the rotating ring of the present invention; Figure 9 This is an exploded cross-sectional view of the auxiliary filter plate of the present invention; Figure 10 This is a schematic diagram of the locking insert structure of the present invention; Figure 11 This is a cross-sectional view of the material storage and air intake box of the present invention; Figure 12 This is a cross-sectional view of the storage cavity of the present invention; Figure 13 This is an exploded view of the locking slot of the present invention; In the diagram: 1. Tower body; 2. Support frame; 3. Liquid collection cylinder; 4. Main filter plate; 5. Scraper; 6. Fixing base; 7. Adjusting screw; 8. Fixing slot; 9. Fixing threaded block; 10. Fixing transverse plate; 11. Drive motor; 12. Auxiliary filter plate; 13. Fixing cylinder; 14. Storage cavity; 15. Water collection container; 16. Spray head; 17. Rotating ring; 18. Rotating groove; 19. Rotating slot 20. Rotary motor; 21. T-shaped base; 22. Guide cylinder; 23. Guide base; 24. Guide spring; 25. Guide connecting frame; 26. Material storage suction box; 27. Square suction nozzle; 28. Liquid spray head; 29. ​​Grille round plate; 30. Locking cylinder; 31. Locking horizontal plate; 32. Locking insert; 33. Locking spring; 34. Locking slide; 35. Locking slide plate; 36. Locking slot. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] Implementation examples, by Figures 1 to 13 The present invention includes a tower body 1, with several support frames 2 installed around the tower body 1; a spray adsorption mechanism is provided inside the tower body 1, which is used to purify the exhaust gas of chemical production and recover useful components from the exhaust gas; the spray adsorption mechanism includes a liquid collection cylinder 3, which is fixedly connected to the bottom of the tower body 1; the opening of the liquid collection cylinder 3 faces the top of the tower body 1; a self-regulating speed control device is provided on the liquid collection cylinder 3, which is used to control the discharge efficiency of the liquid; a pressure scraping assembly is provided inside the tower body 1, which is used to prevent the main filter plate 4 from clogging; the top edge of the inner side of the liquid collection cylinder 3 is chamfered; a water collection container 15 is fixedly connected to the tower body 1 near its top; several spray heads 16 are installed on the side of the water collection container 15 near the liquid collection cylinder 3; the spray heads 16 face the liquid collection cylinder 3; the spray heads 16 and the water collection container 15 are connected. When the adsorption tower is in use, the exhaust gas generated from chemical production enters the tower body 1 through the pipe. By activating the spray head 16, the adsorbent carried in the water collection container 15 is evenly sprayed into the tower, allowing the exhaust gas to fully contact the adsorbent. Through adsorption and absorption, the target substances in the exhaust gas are captured, thereby purifying the exhaust gas or recovering useful components. The purified exhaust gas is discharged from the tower body 1 through the pipe, achieving the purification of the exhaust gas. At the same time, after completing the adsorption and purification of the exhaust gas, the spray liquid falls into the liquid collection cylinder 3 for unified collection and discharge of waste liquid, which is then treated and recycled. Meanwhile, the impurities and other particulate matter in the exhaust gas adsorbed in the waste liquid come into contact with the main filter plate 4 in the liquid collection cylinder 3, allowing the waste liquid to fall into the liquid collection cylinder 3 through the main filter plate 4. This isolates the impurities mixed in with the waste liquid, preventing blockage of the discharge pipe when discharged together, which would reduce the discharge efficiency of the waste liquid and increase the discharge speed of the waste liquid.

[0020] The self-controlled speed regulating device in this embodiment includes a main filter plate 4, which is slidably connected to the liquid collection cylinder 3 and the two are fitted together; a fixed base 6, which is fixedly connected to the bottom of the tower body 1; a through regulating screw 7 is installed on the fixed base 6 and the two are rotatably connected; a fixed groove 8 is provided at one end of the regulating screw 7 near the tower body 1; a fixed threaded block 9, which is threadedly connected to the regulating screw 7; a plurality of fixed horizontal plates 10 are installed on the fixed threaded block 9; a drive motor 11 is installed at the bottom of the tower body 1 and its output end is fitted into the fixed groove 8; an auxiliary filter plate 12, which is fitted into the liquid collection cylinder 3 and the two are slidably engaged; the auxiliary filter plate 12 is located at the bottom of the main filter plate 4; and a fixed cylinder 13, one end of which is fixedly connected to the fixed horizontal plate 10 and the other end is connected through to... The auxiliary filter plate 12 is fixedly connected to the bottom of the tower body 1 and the bottom of the liquid collection cylinder 3; the fixed cylinder 13 is slidably fitted with the tower body 1 and the liquid collection cylinder 3; the auxiliary filter plate 12 is also provided with a storage cavity 14, and the two are coaxial; a rotating ring 17 is provided on the side of the auxiliary filter plate 12 near the main filter plate 4, and the two are coaxial; a rotating groove 18 is provided on the side of the main filter plate 4 near the rotating ring 17 and is fitted with it; the rotating groove 18 and the rotating ring 17 are rotatably fitted; a rotating slot 19 is provided on the side of the main filter plate 4 near the auxiliary filter plate 12; a rotating motor 20 is installed in the storage cavity 14, and its output end passes through the bearing provided on the auxiliary filter plate 12 and is fitted with the rotating slot 19; the filter holes on the auxiliary filter plate 12 and the main filter plate 4 are aligned in the initial position; When waste liquid needs to be discharged after entering the collection cylinder 3, the operator can start the drive motor 11, whose output end is connected to the fixed slot 8, to drive the control screw 7 to rotate, causing it to rotate at the upper limit of the fixed base 6. This causes the threaded fixed block 9 to move, so that the fixed horizontal plate 10 on it can move at the bottom of the tower body 1 and the bottom of the collection cylinder 3 through the fixed cylinder 13. This movement of the fixed thread block 9, along with the movement of several fixed cylinders 13, drives the auxiliary filter plate 12 to move, limiting its movement within the collection cylinder 3. The auxiliary filter plate 12 is connected to the rotating groove 18 on the main filter plate 4 through the rotating ring 17, which drives the main filter plate 4 and the auxiliary filter plate 12 to move synchronously, limiting their movement within the collection cylinder 3. When the equipment needs to adjust the carrying capacity of the collection cylinder 3 according to different needs and conditions during use, the control screw 7 can be adjusted. The height of the main filter plate 4 and the auxiliary filter plate 12 within the liquid collection cylinder 3 can be used to adjust the volume of the liquid collection area at the bottom of the cylinder 3. This allows the equipment to require less spraying and generate less waste liquid in the collection area when the exhaust gas volume is small and the pollutant concentration is low (low gravity). Conversely, when the volume is large and the concentration is high, the spraying volume is large and the waste liquid generation is large (high gravity). By moving the filter plates downwards, the waste liquid in the collection area is squeezed, changing the pressure of the waste liquid in the collection area, thereby directly controlling the discharge rate of the waste liquid. At the same time, the squeezing changes the gravitational potential energy state of the liquid. This change in potential energy, together with the pressure, acts on the discharge process, allowing gravity to control the discharge rate in synergy with pressure. This improves the spraying cycle efficiency and avoids the situation where a large spraying volume results in a small exhaust gas volume, leading to insufficient waste liquid discharge and reduced exhaust gas treatment effect. This reduces the limitations of the adsorption tower during use. In practical use, the rotary motor 20 inside the storage cavity 14 can be activated. Since its output end is connected to the rotary slot 19, the activation of the rotary motor 20 drives the main filter plate 4 on the rotary slot 19 to rotate. This causes the rotary groove 18 on the main filter plate 4 to rotate at the rotary ring 17 on the auxiliary filter plate 12, adjusting the position of the filter holes on the main filter plate 4 and the auxiliary filter plate 12. This allows the main filter plate 4 to block and close some of the filter holes on the auxiliary filter plate 12, preventing the liquid accumulated at the bottom of the collection cylinder 3 from passing through the filter holes on the auxiliary filter plate 12 and the main filter plate 4. At this time, the downward movement of the main filter plate 4 and the auxiliary filter plate 12 compresses the liquid accumulation area space in the collection cylinder 3. The main filter plate 4 and the auxiliary filter plate 12 will then come into contact with the waste liquid. Since the waste liquid cannot be discharged through the filter holes temporarily, the continuous downward movement of the filter plates will create pressure on the waste liquid. This pressure directly increases the kinetic energy of the waste liquid by doing work on it. Accelerating the discharge rate of waste liquid improves the efficiency of the spray cycle, further enhancing the effect of waste liquid discharge. Simultaneously, when the amount of tail gas to be treated by the adsorption tower is small, this controls the spray flow rate to avoid waste. This results in a decrease in the rate at which waste liquid is collected in the collection cylinder 3. The reduced waste liquid affects the discharge rate. The aforementioned method of compressing the collection area space within the collection cylinder 3 adjusts the volume of the collection area, compressing the small amount of waste liquid collected to ensure the discharge rate keeps pace with the spray liquid's spray rate, thus achieving the spray cycle objective. This allows the adsorption tower to flexibly adjust the volume of the collection area according to different usage requirements or treatment conditions, preventing a fixed volume from affecting the waste liquid discharge rate. This not only improves the spray cycle efficiency but also reduces the limitations of the adsorption tower during use.

[0021] The pressure scraping assembly of this embodiment includes a scraper 5, which is disposed on the side of the main filter plate 4 near the top of the tower body 1 and in contact with it; two T-shaped bases 21 are symmetrically connected to the side of the scraper 5 away from the main filter plate 4, and guide cylinders 22 are fixedly installed on the T-shaped bases 21. The two guide cylinders 22 are slidably connected to a guide base 23, and the two sides of the guide base 23 are fixedly connected to the inner wall of the tower body 1; a guide spring 24 is sleeved on the guide cylinder 22, one end of the guide spring 24 is fixedly connected to the guide base 23, and the other end is fixedly connected to the scraper 5; guide connecting frames 25 are installed on the opposite sides of the two T-shaped bases 21, and the two guide connecting frames 25 are connected to a storage air suction box 26; a square suction nozzle 27 is provided on one side of the storage air suction box 26, and several spray heads 28 are provided on the other side; a grid plate 29 is provided inside the spray head 28; the port of the square suction nozzle 27 is located on the side of the scraper 5 and faces the top of the main filter plate 4; the output end of the spray head 28 faces the top of the main filter plate 4; When adjusting the volume of the collection area within the collection cylinder 3, the main filter plate 4 rotates within the collection cylinder 3, while the scraper 5 is positioned on top of the main filter plate 4 and in contact with it. This causes the main filter plate 4 to rotate at the scraper 5. Under the action of the scraper 5, impurities intercepted on the top of the main filter plate 4 are scraped to one side, preventing the main filter plate 4 from accumulating and affecting the flow and efficiency of the waste liquid. When the main filter plate 4 rotates, the scraper 5 sweeps the intercepted impurities to one side, leaving the other side of the scraper 5 empty. This ensures the efficiency of the spray liquid passing through the main filter plate 4, preventing blockage and reducing the flow of the spray liquid, thus improving the efficiency of the waste liquid flow. The accumulation efficiency of the liquid in the accumulation zone within the collection cylinder 3 is improved, preventing the waste liquid from accumulating too slowly and causing a decrease in its discharge rate, which would affect the spray circulation efficiency and thus improve the performance of the adsorption tower and reduce its limitations during use. Simultaneously, the scraper 5 is slidably connected to the guide base 23 via the guide cylinder 22 on the T-shaped base 21. When adjusting the volume of the accumulation zone during use, it is necessary to control the height of the main filter plate 4 and the auxiliary filter plate 12 within the collection cylinder 3. This requires the main filter plate 4 to move up and down, and since the main filter plate 4 is in contact with the scraper 5, and the guide spring 24 is initially in a buffer state, the movement of the main filter plate 4 drives the scraper 5. The scraper 5 is moved, and then slides at the upper limit of the guide base 23 via the guide cylinder 22 on the T-shaped base 21, so that the guide spring 24 is still in a buffer state. Under the action of the guide spring 24, the scraper 5 is kept in contact with the main filter plate 4 for use. This avoids the scraper 5 being unable to clean the impurities intercepted on the main filter plate 4 due to lack of contact, which would affect the accumulation rate of waste liquid and the waste liquid discharge efficiency, thus improving the use effect of the scraper 5. At the same time, after the scraper 5 cleans the impurities intercepted on the main filter plate 4 to one side, the suction force generated by the square suction nozzle 27 on that side is used to suck the intercepted impurities into the storage suction box 26 by activating the storage suction box 26. Inside the gas box 26, impurities intercepted by the main filter plate 4 are collected to prevent excessive accumulation of impurities on the main filter plate 4 from affecting the flow of the spray liquid. At the same time, the interception capacity of the main filter plate 4 is increased, avoiding the need for operators to frequently clean the impurities intercepted on the main filter plate 4, which would reduce the effectiveness and efficiency of the adsorption tower and reduce the limitations of the adsorption tower in use. Meanwhile, by activating the spray head 28 on the other side of the storage gas box 26, the spray liquid adsorbed into the storage gas box 26 can be discharged under the action of the grid circular plate 29, preventing the reduction of spray liquid from affecting the spray circulation efficiency and thus improving the effect of the adsorption tower on the recovery and treatment of tail gas.

[0022] In this embodiment, a locking and engaging unit is provided on the T-shaped base 21; the locking and engaging unit includes a locking cylinder 30; the locking cylinder 30 is fixedly connected to the side of the T-shaped base 21; a locking cross plate 31 is slidably connected to the locking cylinder 30, and a locking insert 32 is fixedly installed on the side of the locking cross plate 31 near the T-shaped base 21; a locking spring 33 is sleeved on the locking cylinder 30, one end of the locking spring 33 is fixedly connected to the locking cross plate 31, and the other end is fixedly connected to a lock. The positioning limit plate and the locking limit plate are fixedly connected to the end of the locking cylinder 30 away from the T-shaped base 21; the scraper 5 is provided with a locking groove 34 on the side away from the main filter plate 4; the T-shaped base 21 is installed with a locking slide plate 35 on the side near the scraper 5; the locking slide plate 35 is slidably engaged with the locking groove 34; the locking slide plate 35 is provided with a through locking slot 36 on the side near the locking cross plate 31; the locking insert 32 passes through the side of the scraper 5 and connects to the locking slot 36. When the adsorption tower is used for a long time, the scraper 5 may become severely damaged. Therefore, regular maintenance or replacement of the scraper 5 is necessary to prevent the damaged scraper 5 from affecting or reducing its ability to remove impurities. To address this, by pulling the locking plate 31 outwards, it is limited to movement at the locking cylinder 30. This puts the locking spring 33 in a buffered state, causing the locking block 32 on the locking plate 31 to disengage from the scraper 5 and no longer connect to the locking slot 36. This releases the limiting setting on the locking slide plate 35, allowing the locking groove 34 on the scraper 5 to slide out and disengage from the locking slide plate 35 on the T-shaped base 21. The scraper 5 can then be disassembled for maintenance or replacement. When the scraper 5 has been maintained or a new one is selected, it is installed by aligning the locking groove 34 on the scraper 5 with the locking slide plate 35 on the T-shaped base 21. The two slide together. When the scraper 5 moves into place, the locking plate 31, which was originally pulled outward, is released, causing the locking spring 33, which was originally in a buffer state, to reset. The reset of the locking spring 33 drives the locking block 32 on the locking plate 31 to reset and move, so that it moves through the side of the scraper 5 and connects with the locking slot 36, thereby limiting the scraper 5 and completing the installation operation of the scraper 5. This allows the scraper 5 to be replaced or maintained quickly and conveniently during the use of the adsorption tower, improving the speed of installation or removal of the scraper 5 and reducing the limitations of the scraper 5 during use. Moreover, the installation and removal of the scraper 5 can be completed without the aid of any tools, which allows the operator to quickly replace the scraper 5 in poor condition as needed, avoiding damage to the scraper 5 during use and the inconvenience of maintenance, which would affect the accumulation and discharge of waste liquid. This improves the use effect of the adsorption tower and ensures the efficiency of the spray circulation.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spray-type chemical production tail gas recovery adsorption tower, comprising a tower body (1), and several support frames (2) installed around the tower body (1); characterized in that: The tower body (1) is equipped with a spray adsorption mechanism, which is used to purify the tail gas of chemical production and realize the recovery of useful components in the tail gas; the spray adsorption mechanism includes a liquid collection cylinder (3), which is fixedly connected to the bottom of the tower body (1); the opening of the liquid collection cylinder (3) faces the top of the tower body (1); the liquid collection cylinder (3) is equipped with a self-controlled speed regulating device, which is used to control the discharge efficiency of the liquid; the self-controlled speed regulating device includes a main filter plate (4), which is slidably connected to the liquid collection cylinder (3), and the two are fitted together; the tower body (1) is equipped with a pressure scraping assembly, which is used to prevent the main filter plate (4) from being blocked; the pressure scraping assembly includes a scraper (5), which is set on the side of the main filter plate (4) near the top of the tower body (1), and the two are in contact; the top edge of the inner side of the liquid collection cylinder (3) is chamfered.

2. The spray-type chemical production tail gas recovery adsorption tower according to claim 1, characterized in that: It includes a fixed base (6), which is fixedly connected to the bottom of the tower body (1); a through-type regulating screw (7) is installed on the fixed base (6), and the two are rotatably connected; a fixed slot (8) is provided at the end of the regulating screw (7) near the tower body (1). A retaining threaded block (9) is threadedly connected to the adjusting screw (7); several retaining cross plates (10) are installed on the retaining threaded block (9). The bottom of the tower body (1) is equipped with a drive motor (11), the output end of which is fitted into the retaining slot (8).

3. The spray-type chemical production tail gas recovery adsorption tower according to claim 2, characterized in that: Includes an auxiliary filter plate (12), which is fitted inside the liquid collection cylinder (3) and the two are slidably connected; the auxiliary filter plate (12) is located at the bottom of the main filter plate (4); The stationary cylinder (13) has one end fixedly connected to the stationary horizontal plate (10), and the other end is connected through the bottom of the tower body (1) and the bottom of the liquid collection cylinder (3) and fixedly connected to the auxiliary filter plate (12); the stationary cylinder (13) is slidably fitted with the tower body (1) and the liquid collection cylinder (3); the auxiliary filter plate (12) is also provided with a storage cavity (14), and the two are coaxial.

4. The spray-type chemical production tail gas recovery adsorption tower according to claim 1, characterized in that: Includes a water collection container (15); the water collection container (15) is fixedly connected to the tower body (1) at a position near its top; a number of spray heads (16) are installed on the side of the water collection container (15) near the liquid collection cylinder (3); the spray heads (16) face the liquid collection cylinder (3); the spray heads (16) and the water collection container (15) are connected.

5. The spray-type chemical production tail gas recovery adsorption tower according to claim 3, characterized in that: The auxiliary filter plate (12) is provided with a rotating ring (17) on the side near the main filter plate (4), and the two are coaxial. The main filter plate (4) is provided with a rotating groove (18) that fits and connects to the rotating ring (17) on the side near the rotating ring (17). The rotating groove (18) and the rotating ring (17) are rotatably engaged. The main filter plate (4) is provided with a rotating slot (19) on the side near the auxiliary filter plate (12). A rotating motor (20) is installed in the storage cavity (14), and its output end passes through the bearing provided on the auxiliary filter plate (12) and fits and connects with the rotating slot (19). The filter holes on the auxiliary filter plate (12) and the main filter plate (4) are aligned in the initial position.

6. The spray-type chemical production tail gas recovery adsorption tower according to claim 1, characterized in that: The scraper (5) is symmetrically connected to two T-shaped bases (21) on the side away from the main filter plate (4). Guide cylinders (22) are fixedly installed on the T-shaped bases (21). The two guide cylinders (22) are slidably connected to guide bases (23). The two sides of the guide bases (23) are fixedly connected to the inner wall of the tower body (1).

7. A spray-type chemical production tail gas recovery adsorption tower according to claim 6, characterized in that: A guide spring (24) is fitted on the guide cylinder (22). One end of the guide spring (24) is fixedly connected to the guide base (23), and the other end is fixedly connected to the scraper (5).

8. A spray-type chemical production tail gas recovery adsorption tower according to claim 6, characterized in that: Guide connecting frames (25) are installed on the opposite sides of the two T-shaped bases (21), and the two guide connecting frames (25) are connected to the storage air suction box (26). A square suction nozzle (27) is provided on one side of the storage air suction box (26), and several spray heads (28) are provided on the other side. A grid circular plate (29) is provided inside the spray head (28). The port of the square suction nozzle (27) is located on the side of the scraper (5) and faces the top of the main filter plate (4). The output end of the spray head (28) faces the top of the main filter plate (4).

9. A spray-type chemical production tail gas recovery adsorption tower according to claim 6, characterized in that: A locking and snapping unit is provided on the T-shaped base (21); the locking and snapping unit includes a locking cylinder (30); the locking cylinder (30) is fixedly connected to the side of the T-shaped base (21); a locking horizontal plate (31) is slidably connected on the locking cylinder (30), and a locking insert (32) is fixedly installed on the side of the locking horizontal plate (31) near the T-shaped base (21); a locking spring (33) is sleeved on the locking cylinder (30), one end of the locking spring (33) is fixedly connected to the locking horizontal plate (31), and the other end is fixedly connected to a locking limiting plate, which is fixedly connected to the end of the locking cylinder (30) away from the T-shaped base (21).

10. A spray-type chemical production tail gas recovery adsorption tower according to claim 9, characterized in that: The scraper (5) has a locking groove (34) on the side away from the main filter plate (4); the T-shaped base (21) has a locking slide plate (35) on the side near the scraper (5); the locking slide plate (35) slides in cooperation with the locking groove (34); the locking slide plate (35) has a through locking slot (36) on the side near the locking cross plate (31); the locking insert (32) passes through the side of the scraper (5) and connects to the locking slot (36).

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