Column type reactor biological membrane supporting device for laboratory

Abstract

The invention discloses a column type reactor biological membrane supporting device for a laboratory, which relates to the technical field of sewage microbiological treatment, and comprises a reactor shell, a round cover lifting mechanism, a rotary stirring mechanism, a carrier upstream angle adjusting mechanism, a biological membrane carrier mechanism and a carrier lifting control mechanism, the round cover lifting mechanism comprises a lifting power assembly and a lifting ring, the lifting power assembly is mounted on the outer side of the reactor shell, and the lifting ring is mounted at the top of the lifting power assembly; the rotary stirring mechanism comprises a rotary round cover and a rotary power assembly, and the inner side of the lifting ring is rotationally connected with the rotary round cover; the column type reactor biological membrane supporting device for the laboratory not only plays a role in mounting a biological membrane carrier, but also plays a role in stirring sewage in the reactor, is beneficial to enabling the biological membrane carrier to be in full contact with the sewage in the reactor, is beneficial to enabling microorganisms to be in full reaction with pollutants in water, and can achieve a better pollutant removal effect.

Description

Technical Field

[0001] The invention relates to the technical field of sewage microbial treatment, in particular to a laboratory column reactor biofilm supporting device. Background Art

[0002] Water treatment biofilm carrier is the medium required for the biocell and enzyme fixation process of the biofilm method in the secondary biological treatment of urban sewage and industrial wastewater. It is in the bioreactor or biochemical pool at the biochemical stage, which is commonly referred to as biological filler in the industry. The biofilm carrier itself does not participate in the biochemical reaction of water treatment, but only increases the specific surface area, improves the porosity, further improves the hydraulic conditions, increases the hydraulic retention time, the pollution interception capacity and the supply of nutrients, and ultimately improves the microbial value-added and water treatment capacity; In sewage treatment laboratories, experiments are conducted in reactors to test the effects of different types of microorganisms on sewage treatment. Different microorganisms are placed in the reactor with the help of biofilm carriers. However, the biofilm carriers easily interfere with the agitator in the reactor, and the existing biofilm carrier mounting components result in poor contact between the biofilm carriers and the rotating water flow in the reactor, affecting the full reaction between the microorganisms and pollutants in the water. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a biofilm support device for a column reactor for a laboratory, which not only plays the role of installing a biofilm carrier, but also can play the role of stirring the sewage in the reactor, which is conducive to allowing the biofilm carrier to fully contact with the sewage in the reactor, and is conducive to allowing the microorganisms and pollutants in the water to fully react, so as to achieve a better pollutant removal effect. The biofilm carrier mechanism is independently arranged in groups, which is convenient for disassembly and replacement. The cleaning actuator outside the carrier cooperates with the carrier lifting control mechanism to clean the debris on the triangular cylinder carrier shell, so that the sewage can pass through the water hole and fully contact the biological filler and attached microorganisms in the triangular cylinder carrier shell, which can effectively solve the problems in the background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a laboratory column reactor biofilm support device, comprising a reactor shell, the reactor shell is cylindrical, and a circular opening is provided on the top of the reactor shell, and further comprising: The round cover lifting mechanism comprises a lifting power assembly and a lifting ring. The lifting power assembly is installed on the outside of the reactor shell, and the lifting ring is installed on the top of the lifting power assembly. The rotary stirring mechanism comprises a rotary round cover and a rotary power assembly, wherein the inner side of the lifting ring is rotatably connected to the rotary round cover, the rotary round cover is located on the top upper side of the reactor shell, and the rotary round cover is connected to the rotary power assembly; The carrier water-facing angle adjustment mechanism includes a carrier movable component, an angle synchronous adjustment component and an angle buffer locking component. Six carrier movable components are installed in a circular array at the edge of the rotating circular cover. The six carrier movable components are all connected to the angle synchronous adjustment component, and the angle synchronous adjustment component is connected to the angle buffer locking component. The biofilm carrier mechanism is installed at the bottom end of the carrier movable component; The carrier lifting control mechanism is installed on the top of the carrier movable component.

[0005] The lifting power assembly is used to drive the lifting ring to move up and down, thereby driving the rotating round cover in the rotating stirring mechanism to rise, which is convenient for replacing the biofilm carrier mechanism at the bottom of the carrier movable assembly. The rotating power assembly is used to drive the rotating round cover to rotate relative to the lifting ring, thereby driving the biofilm carrier mechanism to rotate in the reactor shell, allowing the biofilm carrier mechanism to replace the agitator to stir the sewage in the reactor shell, which can avoid the interference between the biofilm carrier mechanism and the original agitator in the reactor shell, and can also promote the biofilm carrier mechanism to fully contact and react with the sewage. The setting of the carrier movable assembly allows each biofilm carrier mechanism to move up and down or rotate around itself. The angle synchronization adjustment assembly is used to drive each biofilm carrier mechanism to rotate around itself through the carrier movable assembly, changing the angle of the biofilm carrier mechanism toward the water flow in the reactor shell. The angle buffer locking assembly is used to lock the angle synchronization adjustment assembly, thereby locking the angle of the biofilm carrier mechanism in the sewage in the reactor shell. The carrier lifting control mechanism is used to control the biofilm carrier mechanism to move up and down in the reactor shell through the carrier movable assembly, which is conducive to full contact between the biofilm carrier mechanism and the sewage.

[0006] Furthermore, the carrier movable assembly includes an adjustment bearing, an adjustment drum, a lifting column and a slide bar. The edge of the rotating circular cover is rotatably connected to six vertical adjustment drums through six adjustment bearings distributed in a circular array. A lifting column is slidably connected in each adjustment drum. A vertical sliding groove is provided on the side of each lifting column. A slide bar slidably connected to the sliding groove is fixedly connected to the inner side of each adjustment drum. The adjustment drum can rotate relative to the rotating circular cover through the adjustment bearing, thereby driving the lifting column and the biofilm carrier mechanism to rotate around itself. The slide bar and the sliding groove cooperate to ensure that the lifting column can rotate with the adjustment drum, and the slide bar and the sliding groove can allow the lifting column to move up and down relative to the adjustment drum, thereby driving the biofilm carrier mechanism to move up and down in the reactor shell.

[0007] Furthermore, the angle synchronization adjustment component includes a synchronization sprocket, a chain, a control sprocket, a mounting bearing, an adjustment control shaft and a knob. The outer top of each adjustment drum is respectively fixedly sleeved with a synchronization sprocket. The top edge of the rotating round cover is rotatably connected to the bottom end of the adjustment control shaft through the mounting bearing. The middle of the adjustment control shaft is fixedly sleeved with a control sprocket. The top of the adjustment control shaft is mounted with a knob. The control sprocket is connected to the six synchronization sprockets through a chain. The knob can drive the adjustment control shaft to rotate relative to the rotating round cover through the mounting bearing, thereby driving the control sprocket to rotate. The control sprocket can drive the synchronization sprocket to rotate through the chain, thereby driving each adjustment drum and each biofilm carrier mechanism to rotate around itself, thereby changing the angle of the biofilm carrier mechanism in the reactor shell.

[0008] Furthermore, the angle buffer locking assembly includes a fixing sleeve, a fastening screw, a connecting rod, a vertical cylinder, a limiting ring, a limiting hemispherical groove, a compression spring and a positioning ball. The limiting ring is installed on the rotating round cover, the limiting ring is arranged cocentrically with the adjustment control shaft, and three limiting hemispherical grooves are provided in a circular array on the limiting ring. The adjustment control shaft is located at the lower side of the control sprocket and is sleeved with a fixing sleeve. The fixing sleeve is threadedly connected with a fastening screw, and the fastening screw presses against the adjustment control shaft. The side of the fixing sleeve is connected to the vertical cylinder through a connecting rod, the lower side of the vertical cylinder is provided with an opening, and a compression spring is installed in the vertical cylinder, the bottom of the compression spring is connected to the positioning ball, and the positioning ball is clamped with the corresponding limiting hemispherical groove on the limiting ring.

[0009] Since the angle of the biofilm carrier mechanism in the reactor shell will be affected when the sewage in the reactor shell is stirred, it is necessary to lock the angle of the biofilm carrier mechanism in the reactor shell, wherein the fixing sleeve is fixed to the adjustment control shaft by the fastening screw, and the rotation of the adjustment control shaft can drive the vertical cylinder to move on the upper side of the limit ring through the fixing sleeve and the connecting rod. When the positioning ball corresponds to a limit hemispherical groove on the limit ring, the compression spring pushes the positioning ball to engage with the corresponding limit hemispherical groove. At this time, the adjustment control shaft is not easy to rotate again, and the biofilm carrier mechanism is not easy to change its angle when affected by the water flow in the reactor shell. If the knob is turned hard, the elastic force of the compression spring can be overcome, so that the positioning ball can be separated from the limit hemispherical groove and frictionally contact with the upper side of the limit ring. At this time, the compression spring is continued to be compressed, and the positioning ball is retracted into the vertical cylinder until the positioning ball corresponds to the next limit hemispherical groove on the limit ring. At this time, the compression spring pushes the positioning ball to engage with the corresponding limit hemispherical groove again, so that the angle of the biofilm carrier mechanism in the reactor shell is locked after changing 120 degrees.

[0010] Furthermore, the angle buffer locking assembly also includes a compression force adjustment bolt and a pressure plate, the screw hole at the top of the vertical cylinder is threadedly connected with a vertical compression force adjustment bolt, the bottom end of the compression force adjustment bolt is installed with a pressure plate, and the bottom of the pressure plate contacts the top of the compression spring. If the water flow in the reactor shell is strong, it can overcome the thrust of the compression spring on the positioning ball to make the positioning ball disengage from the limiting hemispherical groove, thereby changing the angle of the biofilm carrier mechanism in the reactor shell, then tighten the compression force adjustment bolt, the compression force adjustment bolt moves downward relative to the vertical cylinder, and the pressure plate further compresses the compression spring, so that the thrust of the compression spring on the positioning ball is increased, and the biofilm carrier mechanism is prevented from being affected by the water flow and causing the positioning ball to disengage from the limiting hemispherical groove. However, at this time, it takes more force to adjust the control shaft by turning the knob, so a better compression force adjustment bolt is needed, so that the water flow in the reactor shell cannot affect the angle of the biofilm carrier mechanism, and the knob can be turned with less force.

[0011] Furthermore, the biofilm carrier mechanism includes a positioning and disassembly component, a biofilm carrier connecting column, a side groove, a center tube, a guide protrusion, an installation spring, a locking ball and a carrier component. The bottom end of each lifting column is connected to the top end of the biofilm carrier connecting column through the positioning and disassembly component. The side of the biofilm carrier connecting column is provided with a vertical side groove. A plurality of center tubes are vertically equidistantly sleeved on the biofilm carrier connecting column. The inner side of the top of each center tube is fixedly connected with a guide protrusion slidably connected to the side groove. A blind hole is provided on the side of the guide protrusion close to the biofilm carrier connecting column. The locking ball is connected in the blind hole by installing a spring. A locking semicircular hole is provided in the side groove corresponding to the position of the locking ball. A carrier component is installed on each center tube. With the help of the positioning and disassembly assembly, it is convenient to disassemble and replace the biofilm carrier connecting column. With the help of the guiding protrusion and the side groove, the central tube can only move up and down relative to the biofilm carrier connecting column to prevent the central tube and the carrier assembly from rotating relative to the biofilm carrier connecting column. The central tube is movably sleeved on the biofilm carrier connecting column. When the locking ball corresponds to the locking semicircular hole in the side groove, the installation spring pushes the locking ball to engage with the locking semicircular hole. With the help of the engagement of the locking ball and the locking semicircular hole, the positioning and installation of the central tube and the carrier assembly on the biofilm carrier connecting column are completed. By pulling the central tube and the carrier assembly hard, the central tube and the carrier assembly can continue to slide along the biofilm carrier connecting column, which is convenient for disassembling and assembling the central tube and the carrier assembly on the biofilm carrier connecting column.

[0012] Furthermore, the carrier assembly includes a triangular cylindrical carrier shell, a water hole, and a triangular end cover. The three sides of the triangular cylindrical carrier shell are respectively provided with water holes. The upper and lower ends of the triangular cylindrical carrier shell are respectively detachably installed with two triangular end covers. The central tube is arranged in the middle part of the triangular cylindrical carrier shell, and the upper and lower ends of the central tube are respectively sleeved in the circular holes in the middle parts of the two triangular end covers. The triangular cylindrical carrier shell and the triangular end cover cooperate to form a biofilm carrier. The triangular cylindrical carrier shell is filled with biological fillers for cultivating microorganisms, and microorganisms are attached to the biological fillers. The sewage flowing in the reactor shell contacts and reacts with the microorganisms through the water holes, which is beneficial for the microorganisms to remove pollutants in the sewage. When in use, the triangular cylindrical carrier shell can rotate in the reactor shell through a rotating stirring mechanism to stir the sewage. One edge of the triangular cylindrical carrier shell faces the sewage, allowing the sewage to contact the microorganisms in the biological fillers in the triangular cylindrical carrier shell through the water holes on both sides of the edge. The angle synchronization adjustment component can drive the membrane carrier connecting column and the triangular cylindrical carrier shell to rotate 120 degrees each time, so that each time the triangular cylindrical carrier shell rotates, one edge faces the sewage, which can make the three sides of the biological filler in the triangular cylindrical carrier shell face the sewage more evenly, promote the recuperation of microorganisms on different sides of the biological filler, and utilize the microorganisms to better exert their decontamination ability.

[0013] Furthermore, the carrier lifting control mechanism includes a ball, a return spring, a center bearing, a rotating shaft, a disc, a friction protrusion and an arc control protrusion. A ball is installed on the top of each lifting column, and a return spring is sleeved on the column section of each lifting column located between the ball and the adjustment drum. The top center of the rotating circular cover is rotatably connected to the bottom end of the rotating shaft through the center bearing, and the top of the rotating shaft is fixedly connected to the center of the disc. Friction protrusions are arranged in an annular array on the outer circumference of the disc, and three arc control protrusions are arranged in an annular array on the bottom edge of the disc. The top of the ball is in friction contact with the bottom edge of the disc. With the help of the friction protrusion, the rotating shaft and the disc can be manually rotated to facilitate the three arc control protrusions at the bottom of the disc to make friction contact with three of the six balls. At this time, the three balls in contact with the arc control protrusions can push the corresponding three lifting columns to descend relative to the adjustment drum, thereby allowing the corresponding three biofilm carrier mechanisms to descend. At this time, the reset springs on the three descending lifting columns are compressed, allowing the three biofilm carrier mechanisms to be highly staggered with the other three biofilm carrier mechanisms, while the other three promote a more complete contact between the biofilm carrier mechanisms and the sewage. Continuing to rotate the disc can switch the balls in friction contact with the arc control protrusions, thereby switching the other three biofilm carrier mechanisms to descend, while the originally descending biofilm carrier mechanisms rise due to the reset extension of their corresponding reset springs.

[0014] Furthermore, the carrier lifting control mechanism also includes a bent frame and a locking butterfly bolt, the bent frame is installed on the lifting ring, and the top of the bent frame is threadedly connected with a locking butterfly bolt corresponding to the outer circumference of the disc. The locking butterfly bolt is loosened to allow the locking butterfly bolt to press against the outer side of the disc. At this time, the disc and the lifting ring are locked, and the rotating power assembly drives the rotating circular cover to rotate. At this time, since the disc and the arc control protrusion are stationary, the balls, the lifting column and the adjustment drum rotate with the circular cover, and different balls will continuously rub against the arc control protrusion or leave the arc control protrusion and rub against the bottom edge of the disc, so that the six biofilm carrier mechanisms can move up and down alternately in the reactor shell.

[0015] Furthermore, it also includes a cleaning actuator for the outside of the carrier, which includes a cleaning and disassembly assembly, a cleaning rod, a cleaning triangle sleeve and bristles. The bottom of each adjustment drum is connected to the top of the cleaning rod through the cleaning and disassembly assembly. The side of the cleaning rod corresponds to the position of the triangular cylinder carrier shell and is fixedly connected with a cleaning triangle sleeve. The triangular cylinder carrier shell is located on the inner side of the corresponding cleaning triangle sleeve, and the inner wall of the cleaning triangle sleeve is provided with bristles. The cleaning and disassembly assembly facilitates the disassembly of the cleaning rod, and the cleaning triangle sleeve is used to install the bristles. Whether the biofilm carrier mechanism is moved up and down by manually rotating the round cover, or the relative position of the disc and the lifting ring is locked by the locking butterfly bolt and then the biofilm carrier mechanism is moved up and down by the rotating power assembly, the triangular cylinder carrier shell will move up and down relative to the cleaning triangle sleeve. The bristles on the inside of the cleaning triangle sleeve can clean the outside of the triangular cylinder carrier shell to prevent the debris in the sewage from pressing against the water hole, and ensure that the sewage enters the triangular cylinder carrier shell and contacts the microorganisms on the biological filler.

[0016] Compared with the prior art, the beneficial effects of the column reactor biofilm support device for the laboratory are: 1. The triangular cylindrical carrier shell in the biofilm carrier mechanism is filled with biological fillers for cultivating microorganisms, and microorganisms are attached to the biological fillers, which play the role of biofilm carriers. The rotating stirring mechanism can drive the biofilm carrier connecting column and the triangular cylindrical carrier shell in the biofilm carrier mechanism to stir the sewage in the reactor shell, replacing the agitator in the original reactor shell; 2. The knob can be used to drive the adjustment control shaft to rotate relative to the rotating round cover through the installation bearing, thereby driving the control sprocket to rotate. The control sprocket can drive the synchronous sprocket to rotate through the chain, thereby driving each adjustment drum and each biofilm carrier mechanism to rotate around itself, thereby changing the angle of the biofilm carrier mechanism in the reactor shell. One edge of the triangular cylinder carrier shell faces the sewage, allowing the sewage to contact the microorganisms in the biological filler in the triangular cylinder carrier shell through the water holes on both sides of the edge. The angle synchronization adjustment component can drive the membrane carrier connecting column and the triangular cylinder carrier shell to rotate 120 degrees each time, so that after each rotation of the triangular cylinder carrier shell, one edge faces the sewage, which can make the three sides of the biological filler in the triangular cylinder carrier shell face the sewage more evenly, promote the recuperation of microorganisms on different sides of the biological filler, and use the microorganisms to better exert the decontamination ability; 3. The carrier lifting control mechanism is used to drive the six biofilm carrier mechanisms to move up and down alternately on the reactor shell, promoting a more complete contact between the biofilm carrier mechanisms and the sewage. At the same time, the carrier outer cleaning actuator can clean the outer side of the triangular cylinder carrier shell that moves up and down to prevent the water holes from being blocked by debris in the sewage; 4. The laboratory uses a column reactor biofilm support device, which not only serves to install the biofilm carrier, but also stirs the sewage in the reactor, which is conducive to the full contact between the biofilm carrier and the sewage in the reactor, and the full reaction between the microorganisms and the pollutants in the water, so as to achieve better pollutant removal effect. The biofilm carrier mechanism is independently arranged in groups, which is convenient for disassembly and replacement. The cleaning actuator on the outside of the carrier cooperates with the carrier lifting control mechanism to clean the debris on the triangular cylinder carrier shell, so that the sewage can pass through the water hole and fully contact the biological filler and attached microorganisms in the triangular cylinder carrier shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a biofilm support device for a laboratory column reactor of the present invention; Figure 2 The partial structure of the biofilm support device of the laboratory column reactor of the present invention is shown in FIG. Figure 1 ; Figure 3 For the present invention Figure 2 A schematic diagram of the partially enlarged structure at center A; Figure 4 For the present invention Figure 2 A schematic diagram of the partially enlarged structure at B in the middle; Figure 5 For the present invention Figure 4 A schematic diagram of a partial cross-sectional structure of a water-facing angle adjustment mechanism of a middle carrier; Figure 6 The partial structure of the biofilm support device of the laboratory column reactor of the present invention is shown in FIG. Figure 2 ; Figure 7 For the present invention Figure 6 A schematic diagram of the partially enlarged structure at C in the middle; Figure 8 The partial structure of the biofilm support device of the laboratory column reactor of the present invention is shown in FIG. Figure 3 ; Fig. 9 For the present invention Figure 8 The schematic diagram of the local enlarged structure at D in the middle; Fig.10 This is a schematic diagram of the cleaning triangle sleeve and bristle structure in the biofilm support device of the laboratory column reactor of the present invention; Fig.11 The schematic diagram of the local structure of the biofilm carrier mechanism in the biofilm support device of the laboratory column reactor of the present invention Figure 1 ; Fig.12 The schematic diagram of the local structure of the biofilm carrier mechanism in the biofilm support device of the laboratory column reactor of the present invention Figure 2 ; Fig.13 It is a schematic diagram of a partial cross-sectional structure of a biofilm carrier mechanism in a biofilm support device for a laboratory column reactor of the present invention; In the figure: 1 reactor shell, 2 round cover lifting mechanism, 21 guide ring, 22 lifting ring, 23 guide column, 24 mounting ring, 25 hydraulic cylinder, 3 rotating stirring mechanism, 31 rotating bearing, 32 rotating round cover, 33 end face gear ring, 34 gear, 35 power motor, 36 motor seat, 4 carrier water angle adjustment mechanism, 41 adjustment bearing, 42 adjustment drum, 43 synchronous sprocket, 44 chain, 45 control sprocket, 46 mounting bearing, 47 adjustment control shaft, 48 knob, 49 fixing sleeve, 410 fastening screw, 411 connecting rod, 412 vertical cylinder, 413 compression force adjustment bolt, 414 limiting ring, 415 ear seat, 416 limiting hemispherical groove, 417 pressure plate, 418 compression spring, 419 positioning ball, 420 lifting Lowering column, 421 sliding bar, 5 carrier lifting control mechanism, 51 ball, 52 return spring, 53 center bearing, 54 rotating shaft, 55 disc, 56 friction protrusion, 57 arc control protrusion, 58 bent frame, 59 locking butterfly bolt, 6 biofilm carrier mechanism, 61 top plate, 62 clamping strip, 63 disassembly plate, 64 disassembly bolt, 65 biofilm carrier connecting column, 66 side groove, 67 center tube, 68 guide protrusion, 69 installation spring, 610 locking ball, 611 triangular tube carrier shell, 612 water hole, 613 triangular end cover, 614 triangular sleeve, 615 carrier bolt, 7 carrier outer side cleaning actuator, 71 bent rod, 72 disassembly sleeve, 73 bent rod bolt, 74 cleaning rod, 75 cleaning triangular sleeve, 76 bristles. DETAILED DESCRIPTION

[0018] 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.

[0019] For example, see Figures 1 to 13 , this embodiment provides a technical solution: a laboratory column reactor biofilm support device, comprising a reactor shell 1, the reactor shell 1 is cylindrical, and the top of the reactor shell 1 is provided with a circular opening, and also comprises a round cover lifting mechanism 2, a rotating stirring mechanism 3, a carrier water-facing angle adjustment mechanism 4, a carrier lifting control mechanism 5 and a biofilm carrier mechanism 6; The round cover lifting mechanism 2 includes a lifting power assembly and a lifting ring 22. The lifting power assembly is installed on the outside of the reactor shell 1, and the lifting ring 22 is installed on the top of the lifting power assembly. The lifting power assembly includes a guide ring 21, a guide column 23, a mounting ring 24, and a hydraulic cylinder 25. Two vertical guide columns 23 are fixedly connected to both sides of the bottom of the lifting ring 22, and two guide rings 21 are fixedly connected to the left and right sides of the reactor shell 1. The two guide rings 21 are slidably connected to the two corresponding guide columns 23, and the fixed end of the hydraulic cylinder 25 is fixedly installed on the outside of the reactor shell 1 through the mounting ring 24. The top of the telescopic end of the hydraulic cylinder 25 is connected to the bottom of the lifting ring 22. The guide ring 21 and the guide column 23 cooperate to limit and guide the lifting ring 22, so that the lifting ring 22 can move up and down stably. The telescopic hydraulic cylinder 25 can provide power for the up and down movement of the lifting ring 22.

[0020] The rotary stirring mechanism 3 includes a rotary bearing 31, a rotary round cover 32 and a rotary power assembly. The inner side of the lifting ring 22 is rotatably connected to the rotary round cover 32 through the rotary bearing 31. The rotary round cover 32 is located on the top upper side of the reactor shell 1 and is connected to the rotary power assembly. The rotating power assembly includes an end face gear ring 33, a gear 34, a power motor 35, and a motor seat 36. The top edge of the rotating circular cover 32 is fixedly connected with the end face gear ring 33. The lifting ring 22 is fixedly connected with the motor seat 36 through motor seat screws. The power motor 35 is installed on the motor seat 36. The output shaft of the power motor 35 is fixedly connected with the gear 34. The gear 34 is meshed with the end face gear ring 33. When the power motor 35 works, the rotating circular cover 32 is driven to rotate through the transmission of the end face gear ring 33 and the gear 34.

[0021] The carrier water-facing angle adjustment mechanism 4 includes a carrier movable component, an angle synchronous adjustment component and an angle buffer locking component. Six carrier movable components are installed in a circular array on the edge of the rotating circular cover 32. The six carrier movable components are all connected to the angle synchronous adjustment component, and the angle synchronous adjustment component is connected to the angle buffer locking component. The carrier movable assembly includes an adjustment bearing 41, an adjustment drum 42, a lifting column 420 and a slide bar 421. The edge of the rotating circular cover 32 is rotatably connected to six vertical adjustment drums 42 through six adjustment bearings 41 distributed in a circular array. A lifting column 420 is slidably connected in each adjustment drum 42. A vertical sliding groove is provided on the side of each lifting column 420. A slide bar 421 slidably connected to the sliding groove is fixedly connected to the inner side of each adjustment drum 42. The adjustment drum 42 can rotate relative to the rotating circular cover 32 through the adjustment bearing 41, thereby driving the lifting column 420 and the biofilm carrier mechanism 6 to rotate around itself. The slide bar 421 cooperates with the sliding groove to ensure that the lifting column 420 can rotate with the adjustment drum 42, and the slide bar 421 and the sliding groove can allow the lifting column 420 to move up and down relative to the adjustment drum 42, thereby driving the biofilm carrier mechanism 6 to move up and down in the reactor shell 1.

[0022] The angle synchronization adjustment assembly includes a synchronization sprocket 43, a chain 44, a control sprocket 45, a mounting bearing 46, an adjustment control shaft 47 and a knob 48. The top outer side of each adjustment drum 42 is respectively fixedly sleeved with a synchronization sprocket 43. The top edge of the rotating circular cover 32 is rotatably connected to the bottom end of the adjustment control shaft 47 through the mounting bearing 46. The middle part of the adjustment control shaft 47 is fixedly sleeved with a control sprocket 45. The top of the adjustment control shaft 47 is mounted with a knob 48. The control sprocket 45 is connected to the six synchronization sprockets 43 through the chain 44. The knob 48 can drive the adjustment control shaft 47 to rotate relative to the rotating circular cover 32 through the mounting bearing 46, thereby driving the control sprocket 45 to rotate. The control sprocket 45 can drive the synchronization sprocket 43 to rotate through the chain 44, thereby driving each adjustment drum 42 and each biofilm carrier mechanism 6 to rotate around itself, thereby changing the angle of the biofilm carrier mechanism 6 in the reactor shell 1.

[0023] The angle buffer locking assembly includes a fixing sleeve 49, a fastening screw 410, a connecting rod 411, a vertical cylinder 412, a limiting ring 414, a limiting hemispherical groove 416, a compression spring 418 and a positioning ball 419. The limiting ring 414 is installed on the rotating circular cover 32. The limiting ring 414 is arranged concentrically with the adjustment control shaft 47, and three limiting hemispherical grooves 416 are arranged in an annular array on the limiting ring 414. The adjustment control shaft 47 is located at the lower side of the control sprocket 45. A fixing sleeve 49 is positioned in the sleeve, and a fastening screw 410 is threadedly connected to the fixing sleeve 49. The fastening screw 410 presses against the adjustment control shaft 47. The side of the fixing sleeve 49 is connected to the vertical cylinder 412 through a connecting rod 411. An opening is provided on the lower side of the vertical cylinder 412, and a compression spring 418 is installed in the vertical cylinder 412. The bottom of the compression spring 418 is connected to a positioning ball 419, and the positioning ball 419 is clamped with the corresponding limiting hemispherical groove 416 on the limiting ring 414.

[0024] The angle buffer locking assembly also includes an ear seat 415, and two ear seats 415 are fixedly connected to both sides of the limiting ring 414. The two ear seats 415 are fixedly connected to the top of the rotating round cover 32 by ear seat bolts. The ear seats 415 and the ear seat bolts are used to realize the detachable installation of the limiting ring 414 and the rotating round cover 32.

[0025] Since the sewage in the reactor shell 1 will affect the angle of the biofilm carrier mechanism 6 in the reactor shell 1 when it is stirred, it is necessary to lock the angle of the biofilm carrier mechanism 6 in the reactor shell 1, wherein the fastening screw 410 fixes the fixing sleeve 49 on the adjustment control shaft 47, and the rotation of the adjustment control shaft 47 can drive the vertical cylinder 412 to move on the upper side of the limiting ring 414 through the fixing sleeve 49 and the connecting rod 411. When the positioning ball 419 corresponds to a limiting hemispherical groove 416 on the limiting ring 414, the compression spring 418 pushes the positioning ball 419 to engage with the corresponding limiting hemispherical groove 416. At this time, the adjustment control shaft 47 is not easy to rotate, and the biofilm The carrier mechanism 6 is not easy to change its angle when affected by the water flow in the reactor shell 1. If the knob 48 is turned forcefully, the elastic force of the compression spring 418 can be overcome, allowing the positioning ball 419 to disengage from the limiting hemispherical groove 416 and come into frictional contact with the upper side of the limiting ring 414. At this time, the compression spring 418 is further compressed, and the positioning ball 419 is retracted into the vertical cylinder 412 until the positioning ball 419 corresponds to the next limiting hemispherical groove 416 on the limiting ring 414. At this time, the compression spring 418 pushes the positioning ball 419 to re-engage with the corresponding limiting hemispherical groove 416, thereby locking the biofilm carrier mechanism 6 in the reactor shell 1 after the angle changes by 120 degrees.

[0026] The angle buffer locking assembly also includes a compression force adjustment bolt 413 and a pressure plate 417. The screw hole at the top of the vertical cylinder 412 is threadedly connected to the vertical compression force adjustment bolt 413. The bottom end of the compression force adjustment bolt 413 is installed with a pressure plate 417, and the bottom of the pressure plate 417 is in contact with the top of the compression spring 418. If the water flow in the reactor shell 1 is strong, it can overcome the thrust of the compression spring 418 on the positioning ball 419 to disengage the positioning ball 419 from the limiting hemispherical groove 416, thereby changing the angle of the biofilm carrier mechanism 6 in the reactor shell 1. The compression force adjustment bolt 413 is tightened, and the compression force adjustment bolt 413 moves downward relative to the vertical cylinder 412, allowing the pressure plate 417 to further compress the compression spring 418, so that the thrust of the compression spring 418 on the positioning ball 419 is increased, and the biofilm carrier mechanism 6 is prevented from being affected by the water flow and causing the positioning ball 419 to disengage from the limiting hemispherical groove 416. However, at this time, it requires greater force to rotate the adjustment control shaft 47 by the knob 48, so a better compression force adjustment bolt 413 is required to prevent the water flow in the reactor shell 1 from affecting the angle of the biofilm carrier mechanism 6, while the knob 48 can be turned with less force.

[0027] The biofilm carrier mechanism 6 is installed at the bottom end of the carrier movable component; The biofilm carrier mechanism 6 includes a positioning and disassembly component, a biofilm carrier connecting column 65, a side groove 66, a center tube 67, a guide protrusion 68, an installation spring 69, a locking ball 610 and a carrier component. The bottom end of each lifting column 420 is connected to the top of the biofilm carrier connecting column 65 through the positioning and disassembly component. A vertical side groove 66 is opened on the side of the biofilm carrier connecting column 65. A plurality of center tubes 67 are vertically equidistantly sleeved on the biofilm carrier connecting column 65. At least four center tubes 67 are arranged on each biofilm carrier connecting column 65. A guide protrusion 68 slidably connected to the side groove 66 is fixedly connected to the inner side of the top of each center tube 67. A blind hole is opened on the side of the guide protrusion 68 close to the biofilm carrier connecting column 65. The locking ball 610 is connected in the blind hole by an installation spring 69. A locking semicircular hole is opened in the side groove 66 corresponding to the position of the locking ball 610. A carrier component is installed on each center tube 67.

[0028] The positioning and disassembly assembly includes a top plate 61, a clamping strip 62, a disassembly plate 63, and a disassembly bolt 64. The bottom end of each lifting column 420 is fixedly connected to the top center of the top plate 61. The bottom of the top plate 61 is integrally formed with the clamping strip 62. The top of the disassembly plate 63 is provided with a clamping groove that cooperates with the clamping strip 62. The disassembly plate 63 is fixedly connected to the top plate 61 by two disassembly bolts 64. The bottom center of the disassembly plate 63 is fixedly connected to the top of the biofilm carrier connecting column 65. With the help of the top plate 61 and the disassembly plate 63, the lifting column 420 and the biofilm carrier connecting column 65 can be installed quickly, accurately and stably. By loosening the disassembly bolts 64, the biofilm carrier connecting column 65 and the carrier assembly can be quickly disassembled and replaced.

[0029] With the help of the positioning and disassembly assembly, it is convenient to disassemble and replace the biofilm carrier connecting column 65. The center tube 67 can only move up and down relative to the biofilm carrier connecting column 65 with the help of the guiding protrusion 68 and the side groove 66, so as to prevent the center tube 67 and the carrier assembly from rotating relative to the biofilm carrier connecting column 65. The center tube 67 is movably sleeved on the biofilm carrier connecting column 65. When the locking ball 610 corresponds to the locking semicircular hole in the side groove 66, the installation spring 69 pushes the locking ball 610 to engage with the locking semicircular hole. With the help of the engagement of the locking ball 610 with the locking semicircular hole, the positioning and installation of the center tube 67 and the carrier assembly on the biofilm carrier connecting column 65 are completed. By pulling the center tube 67 and the carrier assembly with force, the center tube 67 and the carrier assembly can continue to slide along the biofilm carrier connecting column 65, so as to facilitate the disassembly and assembly of the center tube 67 and the carrier assembly on the biofilm carrier connecting column 65.

[0030] The carrier assembly includes a triangular cylindrical carrier shell 611, a water hole 612, and a triangular end cover 613. The three sides of the triangular cylindrical carrier shell 611 are respectively provided with water holes 612. The upper and lower ends of the triangular cylindrical carrier shell 611 are respectively detachably installed with two triangular end covers 613. The center tube 67 is arranged in the middle part of the triangular cylindrical carrier shell 611, and the upper and lower ends of the center tube 67 are respectively sleeved in the circular holes in the middle parts of the two triangular end covers 613.

[0031] The carrier assembly also includes a triangular sleeve 614 and a carrier bolt 615. The side of each triangular end cover 613 is fixedly connected with a triangular sleeve 614. The triangular sleeve 614 extends into the inner side of the end of the triangular cylinder carrier shell 611. The end of the triangular cylinder carrier shell 611 is threadedly connected with a carrier bolt 615. The carrier bolt 615 passes through the through hole on the triangular sleeve 614 and presses against the corresponding end of the center tube 67. With the help of the carrier bolt 615 and the triangular sleeve 614, a stable connection between the triangular end cover 613 and the end of the triangular cylinder carrier shell 611 is achieved. At the same time, the center tube 67 and the triangular end cover 613 are fixed to prevent the center tube 67, the triangular end cover 613 and the triangular cylinder carrier shell 611 from rotating relative to each other.

[0032] The triangular cylindrical carrier shell 611 and the triangular end cover 613 cooperate to form a biofilm carrier. The triangular cylindrical carrier shell 611 is filled with biological fillers for cultivating microorganisms, and microorganisms are attached to the biological fillers. The sewage flowing in the reactor shell 1 contacts and reacts with the microorganisms through the water holes 612, which is beneficial for the microorganisms to remove pollutants in the sewage. When in use, the triangular cylindrical carrier shell 611 can be rotated in the reactor shell 1 through the rotating stirring mechanism 3, thereby stirring the sewage. One edge of the triangular cylindrical carrier shell 611 faces the sewage, allowing the sewage to contact the microorganisms in the biological fillers in the triangular cylindrical carrier shell 611 through the water holes 612 on both sides of the edge. The angle synchronization adjustment component can drive the membrane carrier connecting column 65 and the triangular cylindrical carrier shell 611 to rotate 120 degrees each time, so that after each rotation of the triangular cylindrical carrier shell 611, one edge faces the sewage, which can make the three sides of the biological filler in the triangular cylindrical carrier shell 611 more evenly face the flow direction of the sewage, promote the recuperation of microorganisms on different sides of the biological filler, and utilize the microorganisms to better exert their decontamination ability.

[0033] The carrier lifting control mechanism 5 is installed on the top of the carrier movable assembly.

[0034] The carrier lifting control mechanism 5 includes a ball 51, a reset spring 52, a center bearing 53, a rotating shaft 54, a disc 55, a friction protrusion 56 and an arc control protrusion 57. A ball 51 is installed on the top of each lifting column 420, and a reset spring 52 is sleeved on the column section of each lifting column 420 located between the ball 51 and the adjustment drum 42. The top center of the rotating circular cover 32 is rotatably connected to the bottom end of the rotating shaft 54 ​​through the center bearing 53, and the top of the rotating shaft 54 ​​is fixedly connected to the center of the disc 55. The outer peripheral side of the disc 55 is provided with a friction protrusion 56 in an annular array, and the bottom edge of the disc 55 is provided with three arc control protrusions 57 in an annular array. The top of the ball 51 is in friction contact with the bottom edge of the disc 55. With the help of the friction protrusion 56, it is convenient to manually rotate the rotating shaft 54 ​​and the disc 55, so that the three arc control protrusions 57 at the bottom of the disc 55 are in friction contact with three of the six balls 51. At this time, the three balls 51 in contact with the arc control protrusions 57 can push the corresponding three lifting columns 420 to descend relative to the adjustment drum 42, thereby allowing the corresponding three biofilm carrier mechanisms 6 to descend. At this time, the reset springs 52 on the three descending lifting columns 420 are compressed, so that the three biofilm carrier mechanisms 6 are highly staggered with the other three biofilm carrier mechanisms 6, while the other three promote a more complete contact between the biofilm carrier mechanisms 6 and the sewage. Continuing to rotate the disc 55 can switch the balls 51 in friction contact with the arc control protrusions 57, thereby switching the other three biofilm carrier mechanisms 6 to descend, and the originally descending biofilm carrier mechanisms 6 rise due to the reset extension of their respective corresponding reset springs 52.

[0035] The lifting power assembly is used to drive the lifting ring 22 to move up and down, thereby driving the rotating round cover 32 in the rotating stirring mechanism 3 to rise, which is convenient for replacing the biofilm carrier mechanism 6 at the bottom of the carrier movable assembly. The rotating power assembly is used to drive the rotating round cover 32 to rotate relative to the lifting ring 22, thereby driving the biofilm carrier mechanism 6 to rotate in the reactor shell 1, so that the biofilm carrier mechanism 6 can replace the agitator to stir the sewage in the reactor shell 1, which can avoid the interference between the biofilm carrier mechanism 6 and the original agitator in the reactor shell 1, and can also promote the biofilm carrier mechanism 6 and the sewage to fully contact and react. The setting of the carrier movable assembly allows each biofilm carrier mechanism 6 to move up and down or rotate around itself. The angle synchronization adjustment assembly is used to drive each biofilm carrier mechanism 6 to rotate around itself through the carrier movable assembly, changing the angle of the biofilm carrier mechanism 6 toward the water flow in the reactor shell 1. The angle buffer locking assembly is used to lock the angle synchronization adjustment assembly, thereby locking the angle of the biofilm carrier mechanism 6 in the sewage in the reactor shell 1. The carrier lifting control mechanism 5 is used to control the biofilm carrier mechanism 6 to move up and down in the reactor shell 1 through the carrier movable assembly, which is conducive to the full contact between the biofilm carrier mechanism 6 and the sewage.

[0036] For example 2, please refer to Figures 1 to 13 This embodiment provides a technical solution: a biofilm support device for a laboratory column reactor. The structure of this embodiment is roughly the same as that of the first embodiment, except that: The carrier lifting control mechanism 5 also includes a bent frame 58 and a locking butterfly bolt 59. The bent frame 58 is installed on the lifting ring 22 through the bent frame screw, and the top of the bent frame 58 is threadedly connected with the locking butterfly bolt 59 corresponding to the outer peripheral side of the disc 55. The locking butterfly bolt 59 is loosened to make the locking butterfly bolt 59 close to the outer side of the disc 55. At this time, the disc 55 and the lifting ring 22 are locked. At this time, the rotating power component drives the rotating circular cover 32 to rotate. At this time, since the disc 55 and the arc control protrusion 57 are stationary, the ball 51, the lifting column 420 and the adjustment drum 42 rotate with the circular cover 32, different balls 51 will continuously rub against the arc control protrusion 57 or leave the arc control protrusion 57 and rub against the bottom edge of the disc 55, so that the six biofilm carrier mechanisms 6 can move up and down alternately in the reactor shell 1.

[0037] For example 3, please refer to Figures 1 to 13 This embodiment provides a technical solution: a laboratory column reactor biofilm support device. The structure of this embodiment is roughly the same as that of the second embodiment, except that: It also includes a carrier outside cleaning actuator 7, which includes a cleaning and disassembly assembly, a cleaning rod 74, a cleaning triangle sleeve 75 and bristles 76. The bottom of each adjustment drum 42 is connected to the top of the cleaning rod 74 through the cleaning and disassembly assembly, and the side surfaces of the cleaning rod 74 are fixedly connected with the cleaning triangle sleeves 75 corresponding to the positions of the triangular cylinder carrier shells 611. The triangular cylinder carrier shells 611 are located on the inner sides of the corresponding cleaning triangle sleeves 75, and the inner walls of the cleaning triangle sleeves 75 are provided with bristles 76.

[0038] The cleaning and disassembly assembly includes a bent rod 71, a disassembly sleeve 72, and a bent rod bolt 73. The bottom of each adjustment drum 42 is fixedly connected with a bent rod 71, and the bottom of the bent rod 71 is fixedly connected with a disassembly sleeve 72. The top of the cleaning rod 74 is inserted into the disassembly sleeve 72, and the threaded hole on the side of the disassembly sleeve 72 is threadedly connected with the bent rod bolt 73. The bent rod bolt 73 presses against the cleaning rod 74. The cleaning rod 74 can be removed from the disassembly sleeve 72 by loosening the cleaning rod 74. When disassembling the biofilm carrier connecting column 65 and the carrier assembly, the cleaning rod 74 and the cleaning triangle sleeve 75 need to be disassembled together.

[0039] The cleaning and disassembly assembly facilitates the disassembly of the cleaning rod 74, and the cleaning triangular sleeve 75 is used to install bristles 76. No matter the biofilm carrier mechanism 6 is allowed to move up and down by manually rotating the round cover 32, or the disc 55 and the lifting ring 22 are locked in relative position by means of the locking butterfly bolt 59 and then the biofilm carrier mechanism 6 is allowed to move up and down by means of the rotating power assembly, the triangular cylindrical carrier shell 611 will move up and down relative to the cleaning triangular sleeve 75. The bristles 76 on the inside of the cleaning triangular sleeve 75 can clean the outside of the triangular cylindrical carrier shell 611 to prevent debris in the sewage from pressing against the water hole 612, thereby ensuring that the sewage enters the triangular cylindrical carrier shell 611 and contacts the microorganisms on the biological filler.

[0040] It is worth noting that the hydraulic cylinder 25 and the power motor 35 disclosed in the above embodiments are both controlled by an external PLC controller, and the control method thereof adopts the method commonly used in the prior art, wherein the power motor 3 adopts a servo motor and can rotate forward and reverse.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laboratory column reactor biofilm support device, comprising a reactor shell (1), wherein the reactor shell (1) is cylindrical, and a circular opening is provided at the top of the reactor shell (1), characterized in that: Also includes: The round cover lifting mechanism (2) comprises a lifting power assembly and a lifting ring (22), wherein the lifting power assembly is mounted on the outside of the reactor shell (1), and the lifting ring (22) is mounted on the top of the lifting power assembly; The rotary stirring mechanism (3) comprises a rotary round cover (32) and a rotary power assembly, wherein the inner side of the lifting ring (22) is rotatably connected to the rotary round cover (32), the rotary round cover (32) is located on the top upper side of the reactor shell (1), and the rotary round cover (32) is connected to the rotary power assembly; The carrier water-facing angle adjustment mechanism (4) comprises a carrier movable component, an angle synchronization adjustment component and an angle buffer locking component, six carrier movable components are installed in a circular array at the edge of the rotating circular cover (32), the six carrier movable components are all connected to the angle synchronization adjustment component, and the angle synchronization adjustment component is connected to the angle buffer locking component; A biofilm carrier mechanism (6) is mounted at the bottom end of the carrier movable component; A carrier lifting control mechanism (5) is installed on the top of the carrier movable assembly; The carrier movable assembly comprises an adjustment rotating cylinder (42) and a lifting column (420); the edge of the rotating circular cover (32) is rotatably connected to six vertical adjustment rotating cylinders (42) via six adjustment bearings (41) distributed in a circular array; and a lifting column (420) is slidably connected inside each adjustment rotating cylinder (42); The carrier lifting control mechanism (5) comprises a ball (51), a return spring (52), a central bearing (53), a rotating shaft (54), a disc (55) and an arc control protrusion (57). The top of each lifting column (420) is respectively mounted with a ball (51), and the column section of each lifting column (420) between the ball (51) and the adjustment drum (42) is respectively sleeved with a return spring (52). The top center of the rotating circular cover (32) is rotatably connected to the bottom end of the rotating shaft (54) via the central bearing (53), the top end of the rotating shaft (54) is fixedly connected to the center of the disc (55), and the bottom edge of the disc (55) is provided with three arc control protrusions (57) in a ring array, and the top of the ball (51) is in frictional contact with the bottom edge of the disc (55).

2. The biofilm support device for a laboratory column reactor according to claim 1, characterized in that: A vertical sliding groove is respectively formed on the side surface of each lifting column (420), and a sliding bar (421) slidably connected to the sliding groove is respectively fixedly connected to the inner side of each adjusting rotating cylinder (42).

3. The biofilm support device for a laboratory column reactor according to claim 2, characterized in that: The angle synchronous adjustment component comprises an adjustment control shaft (47), a synchronous sprocket (43) is fixedly sleeved on the outer side of the top of each adjustment rotating cylinder (42), the top edge of the rotating circular cover (32) is rotatably connected to the bottom end of the adjustment control shaft (47) through a mounting bearing (46), a control sprocket (45) is fixedly sleeved on the middle part of the adjustment control shaft (47), a knob (48) is installed on the top of the adjustment control shaft (47), and the control sprocket (45) is connected to the six synchronous sprockets (43) through a chain (44).

4. The biofilm support device for a laboratory column reactor according to claim 3, characterized in that: The angle buffer locking assembly comprises a vertical cylinder (412) and a limiting ring (414). The limiting ring (414) is installed on the rotating circular cover (32). The limiting ring (414) is arranged cocentrically with the adjustment control shaft (47), and three limiting hemispherical grooves (416) are formed in an annular array on the limiting ring (414). The adjustment control shaft (47) is located at the lower side of the control sprocket (45) and is sleeved with a fixing sleeve (49). The fixing sleeve (49) is threadedly connected with a fastening The screw (410) is tightened to press against the adjustment control shaft (47); the side of the fixing sleeve (49) is connected to the vertical cylinder (412) through a connecting rod (411); the lower side of the vertical cylinder (412) is provided with an opening, and a compression spring (418) is installed in the vertical cylinder (412); the bottom of the compression spring (418) is connected to a positioning ball (419); and the positioning ball (419) is clamped with a corresponding limiting hemispherical groove (416) on the limiting ring (414).

5. The biofilm support device for a laboratory column reactor according to claim 4, characterized in that: The angle buffer locking assembly further comprises a compression force adjustment bolt (413) and a pressure plate (417); the screw hole at the top of the vertical cylinder (412) is threadedly connected to the vertical compression force adjustment bolt (413); the bottom end of the compression force adjustment bolt (413) is installed with a pressure plate (417); the bottom of the pressure plate (417) contacts the top of the compression spring (418).

6. The biofilm support device for a laboratory column reactor according to claim 2, characterized in that: The biofilm carrier mechanism (6) comprises a biofilm carrier connecting column (65) and a carrier assembly, the bottom end of each lifting column (420) is connected to the top end of the biofilm carrier connecting column (65) via a positioning and disassembly assembly, a vertical side groove (66) is provided on the side of the biofilm carrier connecting column (65), a plurality of center tubes (67) are vertically sleeved at equal distances on the biofilm carrier connecting column (65), a guide protrusion (68) slidably connected to the side groove (66) is fixedly connected to the inner side of the top of each center tube (67), a blind hole is provided on the side of the guide protrusion (68) close to the biofilm carrier connecting column (65), a locking ball (610) is connected in the blind hole via an installation spring (69), a locking semicircular hole is provided in the side groove (66) at a position corresponding to the locking ball (610), and a carrier assembly is installed on each center tube (67).

7. The biofilm support device for a laboratory column reactor according to claim 6, characterized in that: The carrier assembly comprises a triangular cylindrical carrier shell (611), three sides of the triangular cylindrical carrier shell (611) are respectively provided with water holes (612), the upper and lower ends of the triangular cylindrical carrier shell (611) are respectively detachably mounted with two triangular end covers (613), the central tube (67) is arranged in the middle of the triangular cylindrical carrier shell (611), and the upper and lower ends of the central tube (67) are respectively sleeved in the circular holes in the middle of the two triangular end covers (613).

8. The biofilm support device for a laboratory column reactor according to claim 2, characterized in that: The outer circumference of the disk (55) is provided with friction protrusions (56) in an annular array.

9. The biofilm support device for a laboratory column reactor according to claim 8, characterized in that: The carrier lifting control mechanism (5) further comprises a bent frame (58) and a locking butterfly bolt (59); the bent frame (58) is mounted on the lifting ring (22); the top of the bent frame (58) is threadedly connected to a locking butterfly bolt (59) corresponding to the outer circumference of the disc (55).

10. The biofilm support device for a laboratory column reactor according to claim 7, characterized in that: The invention also comprises a carrier outer side cleaning actuator (7), the carrier outer side cleaning actuator (7) comprising a cleaning disassembly assembly, a cleaning rod (74), a cleaning triangle sleeve (75) and bristles (76), the bottom of each adjustment rotating cylinder (42) is connected to the top of the cleaning rod (74) via the cleaning disassembly assembly, the side of the cleaning rod (74) corresponding to the position of the triangular cylinder carrier shell (611) is fixedly connected to the cleaning triangle sleeve (75), the triangular cylinder carrier shell (611) is located on the inner side of the corresponding cleaning triangle sleeve (75), and the inner wall of the cleaning triangle sleeve (75) is provided with bristles (76).

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