A biological purification device for malodorous waste gas

Abstract

The present invention relates to the technical field of biological treatment of waste gas, and specifically discloses a biological purification device for malodorous waste gas, including a spray tower, wherein the outer wall of the spray tower is provided with two observation windows, the top of the spray tower is fixedly connected with an exhaust pipe, the outer wall of the spray tower is fixedly connected with three connecting pipes, and the ends of the three connecting pipes away from the spray tower are fixedly installed with mutually connected lifting pumps, and the bottom inner side of the spray tower stores circulating liquid; fillers are placed between two filter plates and a movable circle for filling, which creates good conditions for the growth and reproduction of microorganisms, and by driving the driving rollers in the two filter plates to drive the stirring plate, stirring can be achieved in the fillers, preventing particulate matter and pollutants from gradually accumulating and forming a compacted layer due to long-term retention, thereby ensuring that the microorganisms have a suitable growth and reproduction space, promoting their function, and avoiding adverse effects on subsequent treatment processes, thereby maintaining stable and efficient operation of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas biological treatment, and in particular to a biological purification device for malodorous waste gas. Background Art

[0002] As an efficient and environmentally friendly waste gas treatment device, the biological purification equipment for malodorous waste gas plays a vital role in the modern industrial production process. The equipment cleverly uses the deodorization principle of microorganisms and converts malodorous substances into harmless substances through the physiological process of microorganisms, thereby achieving the purpose of purifying malodorous gases.

[0003] The main part of the biological purification equipment is usually a carefully designed spray tower, which is equipped with various fillers inside to provide a good environment for the growth and reproduction of microorganisms. The microorganisms come into contact with the malodorous substances in the exhaust gas through the formation of biological liquid membranes, and then decompose and transform them. Under the action of microorganisms, the malodorous substances are decomposed into low molecular weight compounds and finally converted into harmless substances such as carbon dioxide and water.

[0004] Although the exhaust gas undergoes a pretreatment process before entering the spray tower, it cannot completely remove the particulate matter and smaller molecular pollutants. When the particulate matter and pollutants pass through the biological liquid membrane along the air flow direction, they will remain in the liquid membrane. Over time, the retained particulate matter and pollutants will gradually accumulate and form a compacted layer between the fillers, which will affect the subsequent flow of exhaust gas and its contact with the biological liquid membrane, resulting in reduced purification effect.

[0005] Therefore, it is necessary to provide a biological purification device for malodorous waste gas to solve the above problems. Summary of the invention

[0006] The main purpose of the present invention is to provide a biological purification device for malodorous waste gas, which can effectively solve the problems in the background technology.

[0007] To achieve the above object, the technical solution adopted by the present invention is:

[0008] A biological purification device for malodorous waste gas comprises a spray tower, wherein the outer wall of the spray tower is provided with two observation windows, the top of the spray tower is fixedly connected with an exhaust pipe, the outer wall of the spray tower is fixedly connected with three connecting pipes, one end of the three connecting pipes away from the spray tower is fixedly installed with a mutually connected lifting pump, the inner side of the bottom of the spray tower stores a circulating liquid, the two connecting pipes located at the top penetrate into the spray tower and are fixedly connected with a spiral pipe, the bottom of the spiral pipe is fixedly connected with a nozzle, the spray tower is symmetrically provided with purification components, and the purification components are all detachably installed in the spray tower through the installation component;

[0009] The purification component includes a fixed ring and a movable ring which are horizontally slidably connected to the inside of the spray tower, the movable ring is slidably connected between the fixed ring and the movable ring via a plurality of limit rods, two filter plates are fixedly connected inside the movable ring, the inner sides of the filter plates are filled with fillers, a plurality of protrusions are fixedly connected to the upper surface of the movable ring, an arc groove matched with the protrusions is provided on the lower surface of the movable ring, a movable cylinder is rotatably connected between the two filter plates, mounting seats distributed in a circular array are fixedly connected inside the movable cylinder, a driving roller is rotatably connected inside the mounting seat, and a stirring plate is fixedly connected inside the driving roller.

[0010] As a further improvement of the above scheme, the mounting assembly includes a support seat integrally formed on the outer wall of the spray tower, a sealing sleeve is slidably connected to the inner side of the support seat, a plurality of semi-ring holes are opened on the outer wall of the spray tower, the sealing sleeves are slidably installed in the semi-ring holes, the sealing sleeve is fixedly connected to the end of the fixing ring away from the support seat, a sliding seat is fixedly connected to the outer side of the sealing sleeve, a handle is fixedly connected to the outer side of the sliding seat, an ear plate is fixedly connected to the end of the sliding seat close to the support seat, and the two ear plates are connected by bolts.

[0011] As a further improvement of the above scheme, a support block is fixedly connected between the two support seats, a motor is fixedly installed on the upper surface of the top support block, a drive shaft is rotatably connected to the inner side of the support block, and the top of the drive shaft is fixedly connected to the output end of the motor.

[0012] As a further improvement of the above scheme, the spray tower is internally rotatably connected to gear 2, one end of the drive shaft located in the support block is fixedly connected to gear 1, gear 1 and gear 2 are meshed with each other, and gear 2 and the movable ring are meshed with each other.

[0013] As a further improvement of the above scheme, the upper surface of the movable cylinder is rotatably connected to a top plate, the lower surface of the movable cylinder is fixedly connected to a bottom plate, the interior of the bottom plate is fixedly connected to a connecting shaft, the lower surface of the top plate is fixedly connected to a fixed shaft, the outer side of the fixed shaft is fixedly connected to an end face gear, and one end of the driving roller located in the movable cylinder is fixedly connected to a spur gear, and the spur gear and the end face gear are meshed with each other.

[0014] As a further improvement of the above scheme, a scraper strip is fixedly connected to the upper surface of the top plate, another scraper strip is slidably connected inside the connecting shaft, the top scraper strip is slidably connected to the inner side of the fixed ring, and the bottom scraper strip is fixedly connected to the inner side of the movable ring.

[0015] As a further improvement of the above solution, a plurality of elastic blocks are evenly and fixedly connected to the lower surface of the top plate, and a groove matching the elastic blocks is formed on the upper surface of the movable cylinder.

[0016] As a further improvement of the above solution, a circular groove is provided on the lower surface of the fixing ring, the top end of the limiting rod is fixedly connected in the circular groove, and a spring sleeved on the outside of the limiting rod is fixedly connected between the fixing ring and the movable ring.

[0017] As a further improvement of the above solution, a through groove is provided on the lower surface of the connecting shaft, and the scraper strip is slidably connected in the through groove via a slide rail.

[0018] As a further improvement of the above solution, the fixed ring is fixedly connected to the inner side of the sealing sleeve, and the movable ring is rotatably connected to the inner side of the sealing sleeve.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The filler is placed between the two filter plates and the movable circle to create good conditions for the growth and reproduction of microorganisms. The driving rollers in the two filter plates drive the stirring plate to achieve stirring in the filler, preventing particles and pollutants from gradually accumulating and forming a hardened layer due to long-term retention, thereby ensuring that microorganisms have a suitable growth and reproduction space, promoting their role, avoiding adverse effects on subsequent treatment processes, and maintaining stable and efficient operation of the equipment.

[0021] 2. With the help of the convex block, the movable circle can be repeatedly pushed up and down, which makes it easy to achieve synchronous movement of the movable circle and the filler between the two filter plates. Moreover, with the assistance of the spring, the frequency of movement can be increased, so that the filler can vibrate under the push of the convex block, thereby eliminating the compaction layer in the filler, preventing the formation of biological liquid film and affecting the treatment effect of exhaust gas, achieving efficient exhaust gas purification, and reducing the harm of exhaust gas to the environment and human health. In addition, through vibration, the biological liquid film on the surface of the filler can be evenly distributed, which enhances its contact area with the exhaust gas, thereby improving the biofilm's ability to adsorb and decompose exhaust gas.

[0022] 3. By using the sliding seat to drive the sealing sleeve, the purification component can be installed in the spray tower, and the installation part can be guaranteed to have good sealing performance, ensuring that the exhaust gas in the spray tower can be purified by the purification component, avoiding the leakage of exhaust gas and causing harm to the human body. In addition, this installation method enables the purification component to be disassembled very conveniently, which is conducive to the replacement of the internal filler, so as to effectively maintain a good environment for the growth and reproduction of microorganisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the fixing ring structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the internal structure of the spray tower of the present invention;

[0027] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at A in the middle;

[0028] Figure 5 It is a schematic diagram of the top filter plate structure of the present invention;

[0029] Figure 6 It is a schematic diagram of the bottom filter plate structure of the present invention;

[0030] Figure 7 It is a schematic diagram of the cross-sectional structure of the filter plate of the present invention;

[0031] Figure 8 For the present invention Figure 7 Schematic diagram of the structure at B in the middle;

[0032] Fig. 9 It is a schematic diagram of the cross-sectional structure of the spray tower of the present invention.

[0033] In the figure: 1. Spray tower; 2. Observation window; 3. Exhaust pipe; 4. Lifting pump; 5. Connecting pipe;

[0034] The installation assembly includes: 601, support seat; 602, slide seat; 603, handle; 604, ear plate; 605, sealing sleeve; 606, support block;

[0035] The purification assembly includes: 701, fixed ring; 702, filter plate; 703, movable ring; 704, movable ring; 705, bump; 706, drive shaft; 707, gear one; 708, gear two; 709, scraper; 710, top plate; 711, bottom plate; 712, limit rod; 713, spring; 714, drive roller; 715, stirring plate; 716, movable cylinder; 717, mounting seat; 718, spur gear; 719, connecting shaft; 720, end gear; 721, fixed shaft;

[0036] 8. Motor; 9. Spiral pipe. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figures 1 to 9 As shown, the present invention provides an embodiment:

[0039] A biological purification device for malodorous waste gas comprises a spray tower 1. Two observation windows 2 are provided on the outer wall of the spray tower 1. An exhaust pipe 3 is fixedly connected to the top of the spray tower 1. Three connecting pipes 5 are fixedly connected to the outer wall of the spray tower 1. One end of the three connecting pipes 5 away from the spray tower 1 is fixedly installed with a lifting pump 4 that is connected to each other. Circulating liquid is stored on the inner side of the bottom of the spray tower 1. The two connecting pipes 5 located above penetrate into the spray tower 1 and are fixedly connected to a spiral pipe 9. The bottom of the spiral pipe 9 is fixedly connected to a nozzle. Purification components are symmetrically arranged in the spray tower 1. The purification components are all detachably installed in the spray tower 1 through the installation components.

[0040] The spray tower 1, the observation window 2 and the exhaust pipe 3 are existing structures. The observation window 2 can be used to observe and detect the purified environment in the spray tower 1, and the exhaust pipe 3 can be used to discharge the purified gas. The circulating liquid on the inner side of the bottom of the spray tower 1 can be drawn out from the bottom connecting pipe 5 through the lifting pump 4, and then enters the spiral pipe 9 through the two connecting pipes 5 located above, and then sprays along the nozzle on the spiral pipe 9. The purification component can provide space for the growth and reproduction of microorganisms, so that the microorganisms under the spraying can form a biological liquid film. In the process of gas-liquid contact, pollutants are dissolved or adsorbed in the circulating liquid, and then taken up by the microorganisms and converted into simple inorganic substances or cellular substances through a series of biochemical reactions. The purification component can be detachably installed by installing the component, which is convenient for replacing the filler filled in the purification component at any time to ensure the good quality of the biological growth and reproduction space.

[0041] The installation assembly includes a support seat 601 integrally formed on the outer wall of the spray tower 1. The outer wall of the spray tower 1 is provided with a plurality of semi-circular holes, and the sealing sleeves 605 are slidably installed in the semi-circular holes (such as Fig. 9As shown), the outer side of the sealing sleeve 605 is fixedly connected with a slide seat 602, the outer side of the slide seat 602 is fixedly connected with a handle 603, the end of the slide seat 602 close to the support seat 601 is fixedly connected with an ear plate 604, the two ear plates 604 are connected by bolts, the inside of the support seat 601 is fixedly connected with a support block 606, the upper surface of the top support block 606 is fixedly installed with a motor 8, the inner side of the support block 606 is rotatably connected with a drive shaft 706, and the top of the drive shaft 706 is fixedly connected to the output end of the motor 8.

[0042] The sealing sleeve 605 can be fixedly installed through the support seat 601, the slide seat 602 is bolted on the support seat 601 through the ear plate 604, and the sealing inside the spray tower 1 is achieved through the sealing sleeve 605 fixedly connected inside the slide seat 602. The driving shaft 706 can provide power for cleaning the compacted layer inside the purification component under the drive of the output shaft of the motor 8.

[0043] The purification assembly includes a fixed ring 701 and a movable ring 704 (similar to a drawer) horizontally slidably connected to the inside of the spray tower 1, and a movable ring 703 (such as a movable ring 703) is slidably connected between the fixed ring 701 and the movable ring 704 through a plurality of limit rods 712. Figure 7 As shown in the figure, two filter plates 702 are fixedly connected inside the movable ring 703, and the inner side of the filter plate 702 is filled with fillers. A plurality of protrusions 705 are fixedly connected to the upper surface of the movable ring 704, and an arc groove adapted to the protrusion 705 is provided on the lower surface of the movable ring 703. A movable cylinder 716 is rotatably connected between the two filter plates 702, and mounting seats 717 distributed in a circular array are fixedly connected inside the movable cylinder 716. A driving roller 714 is rotatably connected inside the mounting seat 717, and a stirring plate 715 is fixedly connected inside the driving roller 714. A gear 2 708 is rotatably connected inside the spray tower 1, and one end of the driving shaft 706 located inside the support block 606 is fixedly connected There is a gear 707, which meshes with gear 707 and gear 2 708, and meshes with gear 2 708 and movable ring 704. The upper surface of movable cylinder 716 is rotatably connected with top plate 710, and the lower surface of movable cylinder 716 is fixedly connected with bottom plate 711, and the interior of bottom plate 711 is fixedly connected with connecting shaft 719, and the lower surface of top plate 710 is fixedly connected with fixed shaft 721, and the outer side of fixed shaft 721 is fixedly connected with end face gear 720, and one end of driving roller 714 located in movable cylinder 716 is fixedly connected with spur gear 718, and spur gear 718 and end face gear 720 mesh with each other, and the upper surface of top plate 710 is fixedly connected with scraper strip 709 (such as Figure 5 As shown), another scraper strip 709 is slidably connected to the interior of the connecting shaft 719, the top scraper strip 709 is slidably connected to the inner side of the fixed ring 701, and the bottom scraper strip 709 is fixedly connected to the inner side of the movable ring 704 (as shown). Figure 6As shown in the figure, a plurality of elastic blocks are evenly and fixedly connected to the lower surface of the top plate 710, a groove matching the elastic blocks is formed on the upper surface of the movable cylinder 716, a circular groove is formed on the lower surface of the fixed ring 701, the top end of the limiting rod 712 is fixedly connected in the circular groove, a spring 713 sleeved on the outside of the limiting rod 712 is fixedly connected between the fixed ring 701 and the movable ring 703, a through groove is formed on the lower surface of the connecting shaft 719, the bottom scraper strip 709 is slidably connected in the through groove through a slide rail, the fixed ring 701 is fixedly connected to the inner side of the sealing sleeve 605, and the movable ring 704 is rotatably connected to the inner side of the sealing sleeve 605.

[0044] A mounting frame of a purification component can be provided by the fixed ring 701 and the movable ring 704. A plurality of movable rings 703 are slidably connected between the fixed ring 701 and the movable ring 704 through a limiting rod 712. Two filter plates 702 are fixedly connected inside the movable ring 703. Fillers are filled between the two filter plates 702 to provide space for the growth and reproduction of microorganisms. The movable ring 703 can slide between the fixed ring 701 and the movable ring 704 by the cooperation of the protrusion 705 and the arc groove on the movable ring 703 to ensure that the movable ring 703 can slide between the fixed ring 701 and the movable ring 704. The overall structure of the purification component is stable, and the movement of the movable ring 703 can also increase the frequency of movement under the auxiliary action of the spring 713, so that the filler can vibrate under the driving action of the protrusion 705, thereby eliminating the plate layer in the filler, preventing the formation of biological liquid film and affecting the treatment effect of the exhaust gas, achieving efficient exhaust gas purification, and reducing the harm of exhaust gas to the environment and human health. Through the cooperation of the movable cylinder 716 and the mounting seat 717, the uniform distribution of the driving roller 714 can be achieved, and the driving roller 714 drives the stirring plate 7 15 rotates, the stuffing filled in the purification component can be stirred, so as to prevent the microorganisms from agglomerating and improve the microorganism purification effect. Through the meshing between the gear 2 708, the gear 1 707 and the movable ring 704, the movable ring 704 can be driven by the driving shaft 706 to rotate, thereby driving the movable ring 703 to slide in the fixed ring 701, and the rotation of the stirring plate 715 can realize the full stirring of the stuffing in the purification component, prevent agglomeration, and improve the purification effect. Through the top plate 710, the bottom plate 711, the connecting shaft 719, The cooperation between the end face gear 720 and the spur gear 718 can realize the synchronous rotation of the driving roller 714. The cooperation between the bottom scraper strip 709 and the slide rail can ensure that the connecting shaft 719 can always rotate under the drive of the bottom scraper strip 709. The cooperation between the elastic block and the groove can realize the relative synchronization of the top plate 710 and the movable cylinder 716. When the top scraper strip 709 contacts the inner wall of the fixed ring 701, the axial friction between the fixed ring 701 and the top scraper strip 709 will make it impossible for the movable cylinder 716 to drive the top plate 710 to rotate synchronously through the elastic block.

[0045] In combination with the above preferred embodiments, the working principle of the present invention is as follows:

[0046] The installation steps are as follows:

[0047] First, the power transmission components are assembled: the operator needs to rotate the top plate 710 to connect it to the upper surface of the movable cylinder 716, and fix the bottom plate 711 to the lower surface of the movable cylinder 716, fix the connecting shaft 719 inside the bottom plate 711, and fix the end face gear 720 to the outside of the connecting shaft 719, and then fix the spur gear 718 to one end of the driving roller 714 located inside the movable cylinder 716, and mesh with the end face gear 720, and finally fix the two scrapers 709 to the upper surface of the top plate 710 and the inner side of the movable ring 704 respectively, and realize the sliding connection of the bottom scraper 709 inside the connecting shaft 719 through the slide rail;

[0048] Then the operator assembles the purification assembly: first, the operator slides the movable ring 703 between the fixed ring 701 and the movable ring 704 through a number of limit rods 712, fixes and connects two filter plates 702 inside the movable ring 703, and fills the inner side of the filter plate 702 with appropriate fillers, then fixes and connects the protrusion 705 to the upper surface of the movable ring 704, and matches it with the arc groove on the lower surface of the movable ring 703, so as to ensure the stability of the movable ring 704 in repeatedly pushing the movable ring 703 to move;

[0049] After the assembly of the purification components is completed, the assembly of the power components begins: first, the drive shaft 706 is rotatably connected to the inner side of the support block 606, and the top of the drive shaft 706 is fixedly connected to the output end of the motor 8, so that when the motor 8 is started, the drive shaft 706 can be driven to rotate, and then the gear 1 707 is fixedly connected to one end of the drive shaft 706 located in the support block 606, and meshed with the gear 2 708, and then the gear 2 708 is rotatably connected to the inside of the spray tower 1;

[0050] Next, the operator installs the fixed ring 701 and the movable ring 704 inside the spray tower 1 through the sealing sleeve 605, and then slides the sealing sleeve 605 into the corresponding semi-ring hole to complete the installation of the purification component in the spray tower 1, and realizes the mutual engagement between the gear 2 708 and the movable ring 704, so that the rotation of the drive shaft 706 can drive the movable ring 704 to rotate through the engagement of the gear 1 707 and the gear 2 708, so that the rotation of the movable ring 704 can be achieved through the cooperation of the top plate 710, the bottom plate 711, the connecting shaft 719, the end gear 720 and the spur gear 718, so that the driving roller 714 rotates while revolving around the connecting shaft 719; and then the two ear plates 604 are respectively fixed to the end close to the sliding seat 602 and the support seat 601 by bolts, so that the sealing sleeve 605 can be firmly installed inside the spray tower 1.

[0051] Finally, the sliding seat 602 and the handle 603 are fixedly connected in sequence on the outside of the sealing sleeve 605 to enhance the stability of the overall structure, thereby completing the installation of the entire exhaust gas treatment device.

[0052] The steps for exhaust gas purification are as follows:

[0053] First, the operator starts the motor 8 through the external controller to start working. The rotation of the output shaft of the motor 8 drives the driving shaft 706 to rotate. Since the gear 1 707 is fixedly connected to the driving shaft 706, and the gear 1 707 and the gear 2 708 are meshed with each other, the gear 2 708 will rotate together with the movable ring 704 under the drive of the gear 1 707. The movable ring 704 drives the bottom scraper 709 fixedly connected therein to rotate. Since the bottom scraper 709 is slidably connected to the connecting shaft 719 through the slide rail, the movable ring 704 drives the connecting shaft 719 to rotate through the bottom scraper 709. The connecting shaft 719 drives the bottom plate 711 fixedly connected thereto to rotate. The rotating bottom plate 711 drives the movable cylinder 716 fixedly connected thereto to rotate.

[0054] Among them, the movable ring 704 will repeatedly push the movable ring 703 to slide in the fixed ring 701 through the protrusion 705 fixedly connected on its surface, thereby driving the filter plate 702 and the filler to slide in the fixed ring 701. At the same time, the movable ring 703 can also increase the frequency of movement with the assistance of the spring 713, so that the filler can vibrate under the pushing action of the protrusion 705, thereby eliminating the plate layer in the filler, preventing the formation of the biological liquid film and the treatment effect of the exhaust gas from being affected, achieving efficient exhaust gas purification and reducing the harm of the exhaust gas to the environment and human health. In addition, through vibration, the biological liquid film on the surface of the filler can be evenly distributed, which increases its contact area with the exhaust gas, thereby improving the adsorption and decomposition ability of the biological film on the exhaust gas;

[0055] Among them, when the protrusion 705 does not push the movable ring 703, the top scraper 709 does not fit with the inner wall of the fixed ring 701. At this time, the rotating movable cylinder 716 can drive the top plate 710 to rotate through the elastic block, and the rotating top plate 710 drives the top scraper 709 and the fixed shaft 721 to rotate synchronously. The synchronously rotating fixed shaft 721 drives the end face gear 720 to rotate synchronously, and the meshing between the four spur gears 718 is relatively static. Therefore, the rotation of the movable cylinder 716 can only drive the driving roller 714 through the mounting seat 717 to realize the turnover stirring of the filler;

[0056] Among them, when the protrusion 705 pushes the movable ring 703 to move upward, the top scraper 709 fits against the inner wall of the fixed ring 701. When the friction force between the two is greater than the force of the movable cylinder 716 compressing the elastic block on the top plate 710, the movable cylinder 716 compresses the elastic block and cannot continue to drive the top plate 710 to rotate. At this time, the end gear 720 fixedly connected to the fixed shaft 721 cannot rotate. Therefore, while the movable cylinder 716 drives the driving roller 714 to rotate, the spur gear 718 rolls on the end gear 720. The rolling end gear 720 drives the stirring plate 715 to rotate around the center line of the driving roller 714 while revolving around the fixed shaft 721, thereby more evenly stirring the fillers in the two filter plates 702 to avoid the formation of a compacted layer.

Claims

1. A biological purification device for malodorous waste gas, comprising a spray tower (1), wherein the outer wall of the spray tower (1) is provided with two observation windows (2), and the top of the spray tower (1) is fixedly connected to an exhaust pipe (3), characterized in that: The outer wall of the spray tower (1) is fixedly connected with three connecting pipes (5), and one end of the three connecting pipes (5) away from the spray tower (1) is fixedly installed with a mutually connected lifting pump (4). The inner side of the bottom of the spray tower (1) stores circulating liquid. The two connecting pipes (5) located at the top penetrate into the spray tower (1) and are fixedly connected with a spiral pipe (9). The bottom of the spiral pipe (9) is fixedly connected with a spray head. Purification components are symmetrically arranged in the spray tower (1), and the purification components are all detachably installed in the spray tower (1) through the installation components; The purification component comprises a fixed ring (701) and a movable ring (704) which are horizontally slidably connected to the inside of the spray tower (1); a movable ring (703) is slidably connected between the fixed ring (701) and the movable ring (704) via a plurality of limit rods (712); two filter plates (702) are fixedly connected inside the movable ring (703); the inner sides of the filter plates (702) are filled with fillers; a plurality of protrusions (705) are fixedly connected to the upper surface of the movable ring (704); an arc groove matching the protrusions (705) is provided on the lower surface of the movable ring (703); a movable cylinder (716) is rotatably connected between the two filter plates (702); mounting seats (717) distributed in a circumferential array are fixedly connected inside the movable cylinder (716); a driving roller (714) is rotatably connected inside the mounting seat (717); a stirring plate (715) is fixedly connected inside the driving roller (714); The mounting assembly comprises a support seat (601) integrally formed on the outer wall of the spray tower (1), a sealing sleeve (605) is slidably connected to the inner side of the support seat (601), a plurality of semi-annular holes are provided on the outer wall of the spray tower (1), the sealing sleeves (605) are slidably mounted in the semi-annular holes, a sliding seat (602) is fixedly connected to the outer side of the sealing sleeve (605), a handle (603) is fixedly connected to the outer side of the sliding seat (602), an ear plate (604) is fixedly connected to one end of the sliding seat (602) close to the support seat (601), and the two ear plates (604) are connected by bolts; A support block (606) is fixedly connected between the two support seats (601); a motor (8) is fixedly mounted on the upper surface of the top support block (606); a drive shaft (706) is rotatably connected to the inner side of the support block (606); and the top of the drive shaft (706) is fixedly connected to the output end of the motor (8); The upper surface of the movable cylinder (716) is rotatably connected to a top plate (710), the lower surface of the movable cylinder (716) is fixedly connected to a bottom plate (711), the interior of the bottom plate (711) is fixedly connected to a connecting shaft (719), the lower surface of the top plate (710) is fixedly connected to a fixed shaft (721), the outer side of the fixed shaft (721) is fixedly connected to an end face gear (720), and one end of the driving roller (714) located in the movable cylinder (716) is fixedly connected to a spur gear (718), and the spur gear (718) and the end face gear (720) are meshed with each other; A scraper strip (709) is fixedly connected to the upper surface of the top plate (710), another scraper strip (709) is slidably connected inside the connecting shaft (719), the top scraper strip (709) is slidably connected to the inner side of the fixed ring (701), and the bottom scraper strip (709) is fixedly connected to the inner side of the movable ring (704); The spray tower (1) is internally rotatably connected to a gear 2 (708); one end of the drive shaft (706) located in the support block (606) is fixedly connected to a gear 1 (707); the gear 1 (707) and the gear 2 (708) are meshed with each other; and the gear 2 (708) and the movable ring (704) are meshed with each other; A plurality of elastic blocks are evenly and fixedly connected to the lower surface of the top plate (710), and a groove matching the elastic blocks is formed on the upper surface of the movable cylinder (716); A through groove is formed on the lower surface of the connecting shaft (719), and the scraper strip (709) at the bottom is slidably connected in the through groove via a slide rail.

2. The biological purification device for malodorous waste gas according to claim 1 is characterized in that: A circular groove is formed on the lower surface of the fixing ring (701), the top end of the limiting rod (712) is fixedly connected in the circular groove, and a spring (713) sleeved on the outside of the limiting rod (712) is fixedly connected between the fixing ring (701) and the movable ring (703).

3. The biological purification device for malodorous waste gas according to claim 1 is characterized in that: The fixed ring (701) is fixedly connected to the inner side of the sealing sleeve (605), and the movable ring (704) is rotatably connected to the inner side of the sealing sleeve (605).

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